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Add ESP8266WiFi library

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This commit is contained in:
Ivan Grokhotkov 2014-12-01 00:36:56 +03:00
parent 4648024946
commit 6d9c77ebe1
57 changed files with 13194 additions and 0 deletions
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59
libraries/ESP8266WiFi/keywords.txt Normal file
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#######################################
# Syntax Coloring Map For WiFi
#######################################
#######################################
# Library (KEYWORD3)
#######################################
WiFi KEYWORD3
WiFiUdp KEYWORD3
#######################################
# Datatypes (KEYWORD1)
#######################################
Client KEYWORD1
Server KEYWORD1
#######################################
# Methods and Functions (KEYWORD2)
#######################################
firmwareVersion KEYWORD2
status KEYWORD2
connect KEYWORD2
write KEYWORD2
available KEYWORD2
config KEYWORD2
setDNS KEYWORD2
read KEYWORD2
flush KEYWORD2
stop KEYWORD2
connected KEYWORD2
begin KEYWORD2
disconnect KEYWORD2
macAddress KEYWORD2
localIP KEYWORD2
subnetMask KEYWORD2
gatewayIP KEYWORD2
SSID KEYWORD2
BSSID KEYWORD2
RSSI KEYWORD2
encryptionType KEYWORD2
getResult KEYWORD2
getSocket KEYWORD2
WiFiClient KEYWORD2
WiFiServer KEYWORD2
WiFiUDP KEYWORD2
beginPacket KEYWORD2
endPacket KEYWORD2
parsePacket KEYWORD2
remoteIP KEYWORD2
remotePort KEYWORD2
#######################################
# Constants (LITERAL1)
#######################################

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libraries/ESP8266WiFi/library.properties Normal file
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name=ESP8266WiFi
version=1.2
author=Arduino
maintainer=Arduino <info@arduino.cc>
sentence=Enables network connection (local and Internet) using the Arduino WiFi shield. For all Arduino boards.
paragraph=With this library you can instantiate Servers, Clients and send/receive UDP packets through WiFi. The shield can connect either to open or encrypted networks (WEP, WPA). The IP address can be assigned statically or through a DHCP. The library can also manage DNS.
url=http://arduino.cc/en/Reference/WiFi
architectures=*

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libraries/ESP8266WiFi/src/ESP8266WiFi.h Normal file
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/*
WiFi.h - Library for Arduino Wifi shield.
Copyright (c) 2011-2014 Arduino. All right reserved.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef WiFi_h
#define WiFi_h
#include <inttypes.h>
extern "C" {
#include "include/wl_definitions.h"
}
#include "IPAddress.h"
#include "WiFiClient.h"
#include "WiFiServer.h"
class WiFiClass
{
private:
static void init();
public:
static int16_t _state[MAX_SOCK_NUM];
static uint16_t _server_port[MAX_SOCK_NUM];
WiFiClass();
/*
* Get the first socket available
*/
static uint8_t getSocket();
/*
* Get firmware version
*/
static char* firmwareVersion();
/* Start Wifi connection for OPEN networks
*
* param ssid: Pointer to the SSID string.
*/
int begin(char* ssid);
/* Start Wifi connection with WEP encryption.
* Configure a key into the device. The key type (WEP-40, WEP-104)
* is determined by the size of the key (5 bytes for WEP-40, 13 bytes for WEP-104).
*
* param ssid: Pointer to the SSID string.
* param key_idx: The key index to set. Valid values are 0-3.
* param key: Key input buffer.
*/
int begin(char* ssid, uint8_t key_idx, const char* key);
/* Start Wifi connection with passphrase
* the most secure supported mode will be automatically selected
*
* param ssid: Pointer to the SSID string.
* param passphrase: Passphrase. Valid characters in a passphrase
* must be between ASCII 32-126 (decimal).
*/
int begin(const char* ssid, const char *passphrase);
/* Change Ip configuration settings disabling the dhcp client
*
* param local_ip: Static ip configuration
*/
void config(IPAddress local_ip);
/* Change Ip configuration settings disabling the dhcp client
*
* param local_ip: Static ip configuration
* param dns_server: IP configuration for DNS server 1
*/
void config(IPAddress local_ip, IPAddress dns_server);
/* Change Ip configuration settings disabling the dhcp client
*
* param local_ip: Static ip configuration
* param dns_server: IP configuration for DNS server 1
* param gateway : Static gateway configuration
*/
void config(IPAddress local_ip, IPAddress dns_server, IPAddress gateway);
/* Change Ip configuration settings disabling the dhcp client
*
* param local_ip: Static ip configuration
* param dns_server: IP configuration for DNS server 1
* param gateway: Static gateway configuration
* param subnet: Static Subnet mask
*/
void config(IPAddress local_ip, IPAddress dns_server, IPAddress gateway, IPAddress subnet);
/* Change DNS Ip configuration
*
* param dns_server1: ip configuration for DNS server 1
*/
void setDNS(IPAddress dns_server1);
/* Change DNS Ip configuration
*
* param dns_server1: ip configuration for DNS server 1
* param dns_server2: ip configuration for DNS server 2
*
*/
void setDNS(IPAddress dns_server1, IPAddress dns_server2);
/*
* Disconnect from the network
*
* return: one value of wl_status_t enum
*/
int disconnect(void);
/*
* Get the interface MAC address.
*
* return: pointer to uint8_t array with length WL_MAC_ADDR_LENGTH
*/
uint8_t* macAddress(uint8_t* mac);
/*
* Get the interface IP address.
*
* return: Ip address value
*/
IPAddress localIP();
/*
* Get the interface subnet mask address.
*
* return: subnet mask address value
*/
IPAddress subnetMask();
/*
* Get the gateway ip address.
*
* return: gateway ip address value
*/
IPAddress gatewayIP();
/*
* Return the current SSID associated with the network
*
* return: ssid string
*/
char* SSID();
/*
* Return the current BSSID associated with the network.
* It is the MAC address of the Access Point
*
* return: pointer to uint8_t array with length WL_MAC_ADDR_LENGTH
*/
uint8_t* BSSID(uint8_t* bssid);
/*
* Return the current RSSI /Received Signal Strength in dBm)
* associated with the network
*
* return: signed value
*/
int32_t RSSI();
/*
* Return the Encryption Type associated with the network
*
* return: one value of wl_enc_type enum
*/
uint8_t encryptionType();
/*
* Start scan WiFi networks available
*
* return: Number of discovered networks
*/
int8_t scanNetworks();
/*
* Return the SSID discovered during the network scan.
*
* param networkItem: specify from which network item want to get the information
*
* return: ssid string of the specified item on the networks scanned list
*/
char* SSID(uint8_t networkItem);
/*
* Return the encryption type of the networks discovered during the scanNetworks
*
* param networkItem: specify from which network item want to get the information
*
* return: encryption type (enum wl_enc_type) of the specified item on the networks scanned list
*/
uint8_t encryptionType(uint8_t networkItem);
/*
* Return the RSSI of the networks discovered during the scanNetworks
*
* param networkItem: specify from which network item want to get the information
*
* return: signed value of RSSI of the specified item on the networks scanned list
*/
int32_t RSSI(uint8_t networkItem);
/*
* Return Connection status.
*
* return: one of the value defined in wl_status_t
*/
uint8_t status();
/*
* Resolve the given hostname to an IP address.
* param aHostname: Name to be resolved
* param aResult: IPAddress structure to store the returned IP address
* result: 1 if aIPAddrString was successfully converted to an IP address,
* else error code
*/
int hostByName(const char* aHostname, IPAddress& aResult);
friend class WiFiClient;
friend class WiFiServer;
};
extern WiFiClass WiFi;
#endif

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libraries/ESP8266WiFi/src/WiFi.cpp Normal file
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/*
WiFi.cpp - Library for Arduino Wifi shield.
Copyright (c) 2011-2014 Arduino. All right reserved.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include "ESP8266WiFi.h"
extern "C" {
#include "ets_sys.h"
#include "os_type.h"
#include "osapi.h"
#include "mem.h"
#include "user_interface.h"
}
WiFiClass::WiFiClass()
{
// Driver initialization
init();
}
void WiFiClass::init()
{
}
// int WiFiClass::begin(char* ssid)
// {
// uint8_t status = WL_IDLE_STATUS;
// uint8_t attempts = WL_MAX_ATTEMPT_CONNECTION;
// if (WiFiDrv::wifiSetNetwork(ssid, strlen(ssid)) != WL_FAILURE)
// {
// do
// {
// delay(WL_DELAY_START_CONNECTION);
// status = WiFiDrv::getConnectionStatus();
// }
// while ((( status == WL_IDLE_STATUS)||(status == WL_SCAN_COMPLETED))&&(--attempts>0));
// }else
// {
// status = WL_CONNECT_FAILED;
// }
// return status;
// }
// int WiFiClass::begin(char* ssid, uint8_t key_idx, const char *key)
// {
// }
int WiFiClass::begin(const char* ssid, const char *passphrase)
{
struct station_config conf;
strcpy((char*) conf.ssid, ssid);
strcpy((char*) conf.password, passphrase);
wifi_station_set_config(&conf);
return 0;
}
// void WiFiClass::config(IPAddress local_ip)
// {
// WiFiDrv::config(1, (uint32_t)local_ip, 0, 0);
// }
// void WiFiClass::config(IPAddress local_ip, IPAddress dns_server)
// {
// WiFiDrv::config(1, (uint32_t)local_ip, 0, 0);
// WiFiDrv::setDNS(1, (uint32_t)dns_server, 0);
// }
// void WiFiClass::config(IPAddress local_ip, IPAddress dns_server, IPAddress gateway)
// {
// WiFiDrv::config(2, (uint32_t)local_ip, (uint32_t)gateway, 0);
// WiFiDrv::setDNS(1, (uint32_t)dns_server, 0);
// }
// void WiFiClass::config(IPAddress local_ip, IPAddress dns_server, IPAddress gateway, IPAddress subnet)
// {
// WiFiDrv::config(3, (uint32_t)local_ip, (uint32_t)gateway, (uint32_t)subnet);
// WiFiDrv::setDNS(1, (uint32_t)dns_server, 0);
// }
// void WiFiClass::setDNS(IPAddress dns_server1)
// {
// WiFiDrv::setDNS(1, (uint32_t)dns_server1, 0);
// }
// void WiFiClass::setDNS(IPAddress dns_server1, IPAddress dns_server2)
// {
// WiFiDrv::setDNS(2, (uint32_t)dns_server1, (uint32_t)dns_server2);
// }
// int WiFiClass::disconnect()
// {
// return WiFiDrv::disconnect();
// }
// uint8_t* WiFiClass::macAddress(uint8_t* mac)
// {
// uint8_t* _mac = WiFiDrv::getMacAddress();
// memcpy(mac, _mac, WL_MAC_ADDR_LENGTH);
// return mac;
// }
// IPAddress WiFiClass::localIP()
// {
// IPAddress ret;
// WiFiDrv::getIpAddress(ret);
// return ret;
// }
// IPAddress WiFiClass::subnetMask()
// {
// IPAddress ret;
// WiFiDrv::getSubnetMask(ret);
// return ret;
// }
// IPAddress WiFiClass::gatewayIP()
// {
// IPAddress ret;
// WiFiDrv::getGatewayIP(ret);
// return ret;
// }
// char* WiFiClass::SSID()
// {
// return WiFiDrv::getCurrentSSID();
// }
// uint8_t* WiFiClass::BSSID(uint8_t* bssid)
// {
// uint8_t* _bssid = WiFiDrv::getCurrentBSSID();
// memcpy(bssid, _bssid, WL_MAC_ADDR_LENGTH);
// return bssid;
// }
// int32_t WiFiClass::RSSI()
// {
// return WiFiDrv::getCurrentRSSI();
// }
// uint8_t WiFiClass::encryptionType()
// {
// return WiFiDrv::getCurrentEncryptionType();
// }
// int8_t WiFiClass::scanNetworks()
// {
// uint8_t attempts = 10;
// uint8_t numOfNetworks = 0;
// if (WiFiDrv::startScanNetworks() == WL_FAILURE)
// return WL_FAILURE;
// do
// {
// delay(2000);
// numOfNetworks = WiFiDrv::getScanNetworks();
// }
// while (( numOfNetworks == 0)&&(--attempts>0));
// return numOfNetworks;
// }
// char* WiFiClass::SSID(uint8_t networkItem)
// {
// return WiFiDrv::getSSIDNetoworks(networkItem);
// }
// int32_t WiFiClass::RSSI(uint8_t networkItem)
// {
// return WiFiDrv::getRSSINetoworks(networkItem);
// }
// uint8_t WiFiClass::encryptionType(uint8_t networkItem)
// {
// return WiFiDrv::getEncTypeNetowrks(networkItem);
// }
// uint8_t WiFiClass::status()
// {
// return WiFiDrv::getConnectionStatus();
// }
// int WiFiClass::hostByName(const char* aHostname, IPAddress& aResult)
// {
// return WiFiDrv::getHostByName(aHostname, aResult);
// }
WiFiClass WiFi;

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libraries/ESP8266WiFi/src/WiFiClient.cpp Normal file
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/*
WiFiClient.cpp - Library for Arduino Wifi shield.
Copyright (c) 2011-2014 Arduino. All right reserved.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#define LWIP_INTERNAL
extern "C"
{
#include "include/wl_definitions.h"
}
#include "debug.h"
#include "ESP8266WiFi.h"
#include "WiFiClient.h"
#include "WiFiServer.h"
#include "lwip/opt.h"
#include "lwip/tcp.h"
#include "lwip/inet.h"
#include "cbuf.h"
#include "include/ClientContext.h"
#include "c_types.h"
#define MIN_LOCAL_PORT 1024
#define MAX_LOCAL_PORT 1124
static int g_localPort = MIN_LOCAL_PORT;
ICACHE_FLASH_ATTR WiFiClient::WiFiClient()
: _client(0)
{
}
ICACHE_FLASH_ATTR WiFiClient::WiFiClient(ClientContext* client) : _client(client)
{
_client->ref();
}
ICACHE_FLASH_ATTR WiFiClient::~WiFiClient()
{
if (_client)
_client->unref();
}
ICACHE_FLASH_ATTR WiFiClient::WiFiClient(const WiFiClient& other)
{
_client = other._client;
if (_client)
_client->ref();
}
WiFiClient& ICACHE_FLASH_ATTR WiFiClient::operator=(const WiFiClient& other)
{
_client = other._client;
if (_client)
_client->ref();
return *this;
}
int ICACHE_FLASH_ATTR WiFiClient::connect(const char* host, uint16_t port)
{
// IPAddress remote_addr;
// if (WiFi.hostByName(host, remote_addr))
// {
// return connect(remote_addr, port);
// }
return 0;
}
int ICACHE_FLASH_ATTR WiFiClient::connect(IPAddress ip, uint16_t port)
{
if (_client)
stop();
tcp_pcb* pcb = tcp_new();
if (!pcb)
return 0;
while(true)
{
err_t err = tcp_bind(pcb, INADDR_ANY, g_localPort);
if (++g_localPort == MAX_LOCAL_PORT)
g_localPort = MIN_LOCAL_PORT;
if (err == ERR_OK)
break;
if (err == ERR_USE)
continue;
tcp_abort(pcb);
return 0;
}
ip_addr_t addr;
addr.addr = ip;
tcp_arg(pcb, this);
tcp_err(pcb, &WiFiClient::_s_err);
tcp_connect(pcb, &addr, port, reinterpret_cast<tcp_connected_fn>(&WiFiClient::_s_connected));
esp_yield();
if (_client)
return 1;
// if tcp_error was called, pcb has already been destroyed.
// tcp_abort(pcb);
return 0;
}
int8_t ICACHE_FLASH_ATTR WiFiClient::_connected(void* pcb, int8_t err)
{
tcp_pcb* tpcb = reinterpret_cast<tcp_pcb*>(pcb);
_client = new ClientContext(tpcb, 1024, 0, 0);
_client->ref();
esp_schedule();
return ERR_OK;
}
void ICACHE_FLASH_ATTR WiFiClient::_err(int8_t err)
{
DEBUGV("WC:err\r\n");
esp_schedule();
}
size_t ICACHE_FLASH_ATTR WiFiClient::write(uint8_t b)
{
return write(&b, 1);
}
size_t ICACHE_FLASH_ATTR WiFiClient::write(const uint8_t *buf, size_t size)
{
if (!_client || !size)
{
return 0;
}
return _client->write(reinterpret_cast<const char*>(buf), size);
}
int ICACHE_FLASH_ATTR WiFiClient::available()
{
if (!_client)
return 0;
return _client->getSize();
}
int ICACHE_FLASH_ATTR WiFiClient::read()
{
uint8_t b;
if (!available())
return -1;
return _client->read();
}
int ICACHE_FLASH_ATTR WiFiClient::read(uint8_t* buf, size_t size)
{
return (int) _client->read(reinterpret_cast<char*>(buf), size);
}
int ICACHE_FLASH_ATTR WiFiClient::peek()
{
if (!available())
return -1;
return _client->peek();
}
void ICACHE_FLASH_ATTR WiFiClient::flush()
{
if (_client)
_client->flush();
}
void ICACHE_FLASH_ATTR WiFiClient::stop()
{
if (!_client)
return;
_client->unref();
_client = 0;
}
uint8_t ICACHE_FLASH_ATTR WiFiClient::connected()
{
if (!_client)
return 0;
return _client->state() == ESTABLISHED;
}
uint8_t ICACHE_FLASH_ATTR WiFiClient::status()
{
if (!_client)
return CLOSED;
return _client->state();
}
ICACHE_FLASH_ATTR WiFiClient::operator bool()
{
return _client != 0;
}
int8_t ICACHE_FLASH_ATTR WiFiClient::_s_connected(void* arg, void* tpcb, int8_t err)
{
return reinterpret_cast<WiFiClient*>(arg)->_connected(tpcb, err);
}
void ICACHE_FLASH_ATTR WiFiClient::_s_err(void* arg, int8_t err)
{
reinterpret_cast<WiFiClient*>(arg)->_err(err);
}

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/*
WiFiClient.cpp - Library for Arduino Wifi shield.
Copyright (c) 2011-2014 Arduino. All right reserved.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef wificlient_h
#define wificlient_h
#include "Arduino.h"
#include "Print.h"
#include "Client.h"
#include "IPAddress.h"
class ClientContext;
class WiFiServer;
class WiFiClient : public Client {
protected:
WiFiClient(ClientContext* client);
public:
WiFiClient();
virtual ~WiFiClient();
WiFiClient(const WiFiClient&);
WiFiClient& operator=(const WiFiClient&);
uint8_t status();
virtual int connect(IPAddress ip, uint16_t port);
virtual int connect(const char *host, uint16_t port);
virtual size_t write(uint8_t);
virtual size_t write(const uint8_t *buf, size_t size);
virtual int available();
virtual int read();
virtual int read(uint8_t *buf, size_t size);
virtual int peek();
virtual void flush();
virtual void stop();
virtual uint8_t connected();
virtual operator bool();
friend class WiFiServer;
using Print::write;
private:
static int8_t _s_connected(void* arg, void* tpcb, int8_t err);
static void _s_err(void* arg, int8_t err);
int8_t _connected(void* tpcb, int8_t err);
void _err(int8_t err);
ClientContext* _client;
};
#endif

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/*
WiFiServer.cpp - Library for Arduino Wifi shield.
Copyright (c) 2011-2014 Arduino. All right reserved.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#define LWIP_INTERNAL
#include "debug.h"
#include "ESP8266WiFi.h"
#include "WiFiClient.h"
#include "WiFiServer.h"
#include "lwip/opt.h"
#include "lwip/tcp.h"
#include "lwip/inet.h"
#include "cbuf.h"
#include "include/ClientContext.h"
WiFiServer::WiFiServer(uint16_t port, size_t rx_buffer_size)
{
_port = port;
_pcb = 0;
_unclaimed = 0;
_discarded = 0;
_rx_buffer_size = rx_buffer_size;
}
void WiFiServer::begin()
{
err_t err;
tcp_pcb* pcb = tcp_new();
if (!pcb)
return;
err = tcp_bind(pcb, INADDR_ANY, _port);
if (err != ERR_OK)
{
tcp_close(pcb);
return;
}
tcp_pcb* listen_pcb = tcp_listen(pcb);
if (!listen_pcb)
{
tcp_close(pcb);
return;
}
_pcb = listen_pcb;
tcp_accept(listen_pcb, &WiFiServer::_s_accept);
tcp_arg(listen_pcb, (void*) this);
}
WiFiClient WiFiServer::available(byte* status)
{
if (_unclaimed)
{
WiFiClient result(_unclaimed);
_unclaimed = _unclaimed->next();
// printf("WiFiServer::available\r\n");
DEBUGV("WS:av\r\n");
return result;
}
return WiFiClient();
}
uint8_t WiFiServer::status() {
if (!_pcb)
return CLOSED;
return _pcb->state;
}
size_t WiFiServer::write(uint8_t b)
{
return write(&b, 1);
}
size_t WiFiServer::write(const uint8_t *buffer, size_t size)
{
// write to all clients
// not implemented
return 0;
}
template<typename T>
T* slist_append_tail(T* head, T* item)
{
if (!head)
return item;
T* last = head;
while(last->next())
last = last->next();
last->next(item);
return head;
}
int8_t WiFiServer::_accept(tcp_pcb* apcb, int8_t err)
{
DEBUGV("WS:ac\r\n");
ClientContext* client = new ClientContext(apcb, _rx_buffer_size, &WiFiServer::_s_discard, this);
_unclaimed = slist_append_tail(_unclaimed, client);
tcp_accepted(_pcb);
// printf("WiFiServer::_accept\r\n");
return ERR_OK;
}
void WiFiServer::_discard(ClientContext* client)
{
_discarded = slist_append_tail(_discarded, client);
DEBUGV("WS:dis\r\n");
// printf("WiFiServer::_discard\r\n");
}
int8_t WiFiServer::_s_accept(void *arg, tcp_pcb* newpcb, int8_t err)
{
return reinterpret_cast<WiFiServer*>(arg)->_accept(newpcb, err);
}
void WiFiServer::_s_discard(void* server, ClientContext* ctx)
{
reinterpret_cast<WiFiServer*>(server)->_discard(ctx);
}

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/*
WiFiServer.h - Library for Arduino Wifi shield.
Copyright (c) 2011-2014 Arduino. All right reserved.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef wifiserver_h
#define wifiserver_h
extern "C" {
#include "include/wl_definitions.h"
struct tcp_pcb;
}
#include "Server.h"
class ClientContext;
class WiFiClient;
class WiFiServer : public Server {
private:
uint16_t _port;
tcp_pcb* _pcb;
size_t _rx_buffer_size;
ClientContext* _unclaimed;
ClientContext* _discarded;
public:
WiFiServer(uint16_t port, size_t rx_buffer_size = 2048);
WiFiClient available(uint8_t* status = NULL);
void begin();
virtual size_t write(uint8_t);
virtual size_t write(const uint8_t *buf, size_t size);
uint8_t status();
using Print::write;
protected:
int8_t _accept(tcp_pcb* newpcb, int8_t err);
void _discard(ClientContext* client);
static int8_t _s_accept(void *arg, tcp_pcb* newpcb, int8_t err);
static void _s_discard(void* server, ClientContext* ctx);
};
#endif

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/*
WiFiUdp.cpp - Library for Arduino Wifi shield.
Copyright (c) 2011-2014 Arduino. All right reserved.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
extern "C" {
#include "utility/debug.h"
#include "utility/wifi_spi.h"
}
#include <string.h>
#include "utility/server_drv.h"
#include "utility/wifi_drv.h"
#include "WiFi.h"
#include "WiFiUdp.h"
#include "WiFiClient.h"
#include "WiFiServer.h"
/* Constructor */
WiFiUDP::WiFiUDP() : _sock(NO_SOCKET_AVAIL) {}
/* Start WiFiUDP socket, listening at local port PORT */
uint8_t WiFiUDP::begin(uint16_t port) {
uint8_t sock = WiFiClass::getSocket();
if (sock != NO_SOCKET_AVAIL)
{
ServerDrv::startServer(port, sock, UDP_MODE);
WiFiClass::_server_port[sock] = port;
_sock = sock;
_port = port;
return 1;
}
return 0;
}
/* return number of bytes available in the current packet,
will return zero if parsePacket hasn't been called yet */
int WiFiUDP::available() {
if (_sock != NO_SOCKET_AVAIL)
{
return ServerDrv::availData(_sock);
}
return 0;
}
/* Release any resources being used by this WiFiUDP instance */
void WiFiUDP::stop()
{
if (_sock == NO_SOCKET_AVAIL)
return;
ServerDrv::stopClient(_sock);
_sock = NO_SOCKET_AVAIL;
}
int WiFiUDP::beginPacket(const char *host, uint16_t port)
{
// Look up the host first
int ret = 0;
IPAddress remote_addr;
if (WiFi.hostByName(host, remote_addr))
{
return beginPacket(remote_addr, port);
}
return ret;
}
int WiFiUDP::beginPacket(IPAddress ip, uint16_t port)
{
if (_sock == NO_SOCKET_AVAIL)
_sock = WiFiClass::getSocket();
if (_sock != NO_SOCKET_AVAIL)
{
ServerDrv::startClient(uint32_t(ip), port, _sock, UDP_MODE);
WiFiClass::_state[_sock] = _sock;
return 1;
}
return 0;
}
int WiFiUDP::endPacket()
{
return ServerDrv::sendUdpData(_sock);
}
size_t WiFiUDP::write(uint8_t byte)
{
return write(&byte, 1);
}
size_t WiFiUDP::write(const uint8_t *buffer, size_t size)
{
ServerDrv::insertDataBuf(_sock, buffer, size);
return size;
}
int WiFiUDP::parsePacket()
{
return available();
}
int WiFiUDP::read()
{
uint8_t b;
if (available())
{
ServerDrv::getData(_sock, &b);
return b;
}else{
return -1;
}
}
int WiFiUDP::read(unsigned char* buffer, size_t len)
{
if (available())
{
uint16_t size = 0;
if (!ServerDrv::getDataBuf(_sock, buffer, &size))
return -1;
// TODO check if the buffer is too smal respect to buffer size
return size;
}else{
return -1;
}
}
int WiFiUDP::peek()
{
uint8_t b;
if (!available())
return -1;
ServerDrv::getData(_sock, &b, 1);
return b;
}
void WiFiUDP::flush()
{
while (available())
read();
}
IPAddress WiFiUDP::remoteIP()
{
uint8_t _remoteIp[4] = {0};
uint8_t _remotePort[2] = {0};
WiFiDrv::getRemoteData(_sock, _remoteIp, _remotePort);
IPAddress ip(_remoteIp);
return ip;
}
uint16_t WiFiUDP::remotePort()
{
uint8_t _remoteIp[4] = {0};
uint8_t _remotePort[2] = {0};
WiFiDrv::getRemoteData(_sock, _remoteIp, _remotePort);
uint16_t port = (_remotePort[0]<<8)+_remotePort[1];
return port;
}

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/*
WiFiUdp.h - Library for Arduino Wifi shield.
Copyright (c) 2011-2014 Arduino. All right reserved.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef wifiudp_h
#define wifiudp_h
#include <Udp.h>
#define UDP_TX_PACKET_MAX_SIZE 24
class WiFiUDP : public UDP {
private:
uint8_t _sock; // socket ID for Wiz5100
uint16_t _port; // local port to listen on
public:
WiFiUDP(); // Constructor
virtual uint8_t begin(uint16_t); // initialize, start listening on specified port. Returns 1 if successful, 0 if there are no sockets available to use
virtual void stop(); // Finish with the UDP socket
// Sending UDP packets
// Start building up a packet to send to the remote host specific in ip and port
// Returns 1 if successful, 0 if there was a problem with the supplied IP address or port
virtual int beginPacket(IPAddress ip, uint16_t port);
// Start building up a packet to send to the remote host specific in host and port
// Returns 1 if successful, 0 if there was a problem resolving the hostname or port
virtual int beginPacket(const char *host, uint16_t port);
// Finish off this packet and send it
// Returns 1 if the packet was sent successfully, 0 if there was an error
virtual int endPacket();
// Write a single byte into the packet
virtual size_t write(uint8_t);
// Write size bytes from buffer into the packet
virtual size_t write(const uint8_t *buffer, size_t size);
using Print::write;
// Start processing the next available incoming packet
// Returns the size of the packet in bytes, or 0 if no packets are available
virtual int parsePacket();
// Number of bytes remaining in the current packet
virtual int available();
// Read a single byte from the current packet
virtual int read();
// Read up to len bytes from the current packet and place them into buffer
// Returns the number of bytes read, or 0 if none are available
virtual int read(unsigned char* buffer, size_t len);
// Read up to len characters from the current packet and place them into buffer
// Returns the number of characters read, or 0 if none are available
virtual int read(char* buffer, size_t len) { return read((unsigned char*)buffer, len); };
// Return the next byte from the current packet without moving on to the next byte
virtual int peek();
virtual void flush(); // Finish reading the current packet
// Return the IP address of the host who sent the current incoming packet
virtual IPAddress remoteIP();
// Return the port of the host who sent the current incoming packet
virtual uint16_t remotePort();
friend class WiFiDrv;
};
#endif

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/*
* Copyright (c) 2001, Swedish Institute of Computer Science.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the Institute nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* This file is part of the lwIP TCP/IP stack.
*
* Author: Adam Dunkels <adam@sics.se>
*
*/
#ifndef __ARCH_CC_H__
#define __ARCH_CC_H__
//#include <string.h>
#include "c_types.h"
#include "ets_sys.h"
#include "osapi.h"
#define EFAULT 14
//#define LWIP_PROVIDE_ERRNO
#if (1)
#define BYTE_ORDER LITTLE_ENDIAN
#else
#define BYTE_ORDER BIG_ENDIAN
#endif
typedef unsigned char u8_t;
typedef signed char s8_t;
typedef unsigned short u16_t;
typedef signed short s16_t;
typedef unsigned long u32_t;
typedef signed long s32_t;
typedef unsigned long mem_ptr_t;
#define S16_F "d"
#define U16_F "d"
#define X16_F "x"
#define S32_F "d"
#define U32_F "d"
#define X32_F "x"
//#define PACK_STRUCT_FIELD(x) x __attribute__((packed))
#define PACK_STRUCT_FIELD(x) x
#define PACK_STRUCT_STRUCT __attribute__((packed))
#define PACK_STRUCT_BEGIN
#define PACK_STRUCT_END
//#define LWIP_DEBUG
#ifdef LWIP_DEBUG
#define LWIP_PLATFORM_DIAG(x) os_printf x
#define LWIP_PLATFORM_ASSERT(x) ETS_ASSERT(x)
#else
#define LWIP_PLATFORM_DIAG(x)
#define LWIP_PLATFORM_ASSERT(x)
#endif
#define SYS_ARCH_DECL_PROTECT(x)
#define SYS_ARCH_PROTECT(x)
#define SYS_ARCH_UNPROTECT(x)
#define LWIP_PLATFORM_BYTESWAP 1
#define LWIP_PLATFORM_HTONS(_n) ((u16_t)((((_n) & 0xff) << 8) | (((_n) >> 8) & 0xff)))
#define LWIP_PLATFORM_HTONL(_n) ((u32_t)( (((_n) & 0xff) << 24) | (((_n) & 0xff00) << 8) | (((_n) >> 8) & 0xff00) | (((_n) >> 24) & 0xff) ))
#if LWIP_RAW
extern u8_t memp_memory_RAW_PCB_base[];
#endif /* LWIP_RAW */
#if LWIP_UDP
extern u8_t memp_memory_UDP_PCB_base[];
#endif /* LWIP_UDP */
#if LWIP_TCP
extern u8_t memp_memory_TCP_PCB_base[];
extern u8_t memp_memory_TCP_PCB_LISTEN_base[];
extern u8_t memp_memory_TCP_SEG_base[] SHMEM_ATTR;
#endif /* LWIP_TCP */
#if (!NO_SYS || (NO_SYS && !NO_SYS_NO_TIMERS)) /* LWIP_TIMERS */
extern u8_t memp_memory_SYS_TIMEOUT_base[];
#endif /* LWIP_TIMERS */
extern u8_t memp_memory_PBUF_base[];
extern u8_t memp_memory_PBUF_POOL_base[];
#endif /* __ARCH_CC_H__ */

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/*
* Copyright (c) 2001, Swedish Institute of Computer Science.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of the Institute nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* This file is part of the lwIP TCP/IP stack.
*
* Author: Adam Dunkels <adam@sics.se>
*
*/
#ifndef __PERF_H__
#define __PERF_H__
#define PERF_START /* null definition */
#define PERF_STOP(x) /* null definition */
#endif /* __PERF_H__ */

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#ifndef CLIENTCONTEXT_H
#define CLIENTCONTEXT_H
class ClientContext;
class WiFiClient;
typedef void(*discard_cb_t)(void*, ClientContext*);
extern "C" void esp_yield();
extern "C" void esp_schedule();
class ClientContext
{
public:
ClientContext(tcp_pcb* pcb, size_t rx_buffer_size,
discard_cb_t discard_cb, void* discard_cb_arg)
: _pcb(pcb)
, _rx_buf(rx_buffer_size)
, _discard_cb(discard_cb)
, _discard_cb_arg(discard_cb_arg)
, _refcnt(0)
, _next(0)
{
tcp_setprio(pcb, TCP_PRIO_MIN);
tcp_arg(pcb, this);
tcp_recv(pcb, &_s_recv);
tcp_sent(pcb, &_s_sent);
tcp_err(pcb, &_s_error);
// tcp_poll(pcb, &_s_poll, 0);
}
~ClientContext()
{
}
ClientContext* next() const
{
return _next;
}
ClientContext* next(ClientContext* new_next)
{
_next = new_next;
}
void ref()
{
++_refcnt;
}
void unref()
{
DEBUGV("WC:ur %d\r\n", _refcnt);
if (--_refcnt == 0 && _pcb)
{
// if (_discard_cb)
// (*_discard_cb)(_discard_cb_arg, this);
// else
// {
tcp_arg(_pcb, NULL);
tcp_sent(_pcb, NULL);
tcp_recv(_pcb, NULL);
tcp_err(_pcb, NULL);
tcp_close(_pcb);
_pcb = 0;
delete this;
//tcp_abort(_pcb);
// }
}
}
size_t getSize() const
{
return _rx_buf.getSize();
}
char read()
{
return _rx_buf.read();
}
size_t read(char* dst, size_t size)
{
DEBUGV("WC:rd\r\n");
return _rx_buf.read(dst, size);
}
char peek()
{
return _rx_buf.peek();
}
void flush()
{
return _rx_buf.flush();
}
uint8_t state() const
{
if (!_pcb)
return CLOSED;
return _pcb->state;
}
size_t write(const char* data, size_t size)
{
if (!_pcb)
return 0;
size_t room = tcp_sndbuf(_pcb);
size_t will_send = (room < size) ? room : size;
err_t err = tcp_write(_pcb, data, will_send, 0);
if (err != ERR_OK)
return 0;
_size_sent = will_send;
DEBUGV("WC:wr\r\n");
delay(5000); // max send timeout
DEBUGV("WC:ww\r\n");
return will_send - _size_sent;
}
private:
err_t _recv(tcp_pcb* pcb, pbuf* pb, err_t err)
{
if (pb == 0) // connection closed
{
DEBUGV("WC:rcl\r\n");
tcp_arg(pcb, NULL);
tcp_sent(pcb, NULL);
tcp_recv(pcb, NULL);
tcp_err(pcb, NULL);
tcp_close(pcb);
_pcb = 0;
return ERR_OK;
}
DEBUGV("WC:rcr\r\n");
size_t len = pb->len;
_rx_buf.write(reinterpret_cast<const char*>(pb->payload), pb->len);
pbuf_free(pb);
tcp_recved(pcb, len);
return ERR_OK;
}
void _error(err_t err)
{
DEBUGV("WC:er\r\n");
_pcb = 0;
if (_size_sent)
esp_schedule();
}
err_t _poll(tcp_pcb* pcb)
{
return ERR_OK;
}
err_t _sent(tcp_pcb* pcb, uint16_t len)
{
DEBUGV("WC:sent %d\r\n", len);
_size_sent -= len;
if (_size_sent == 0)
esp_schedule();
return ERR_OK;
}
static err_t _s_recv(void *arg, struct tcp_pcb *tpcb, struct pbuf *pb, err_t err)
{
return reinterpret_cast<ClientContext*>(arg)->_recv(tpcb, pb, err);
}
static void _s_error(void *arg, err_t err)
{
reinterpret_cast<ClientContext*>(arg)->_error(err);
}
static err_t _s_poll(void *arg, struct tcp_pcb *tpcb)
{
return reinterpret_cast<ClientContext*>(arg)->_poll(tpcb);
}
static err_t _s_sent(void *arg, struct tcp_pcb *tpcb, uint16_t len)
{
return reinterpret_cast<ClientContext*>(arg)->_sent(tpcb, len);
}
private:
ClientContext* _next;
int _refcnt;
tcp_pcb* _pcb;
cbuf _rx_buf;
discard_cb_t _discard_cb;
void* _discard_cb_arg;
size_t _size_sent;
};
#endif//CLIENTCONTEXT_H

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/*
wl_definitions.h - Library for Arduino Wifi shield.
Copyright (c) 2011-2014 Arduino. All right reserved.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
/*
* wl_definitions.h
*
* Created on: Mar 6, 2011
* Author: dlafauci
*/
#ifndef WL_DEFINITIONS_H_
#define WL_DEFINITIONS_H_
// Maximum size of a SSID
#define WL_SSID_MAX_LENGTH 32
// Length of passphrase. Valid lengths are 8-63.
#define WL_WPA_KEY_MAX_LENGTH 63
// Length of key in bytes. Valid values are 5 and 13.
#define WL_WEP_KEY_MAX_LENGTH 13
// Size of a MAC-address or BSSID
#define WL_MAC_ADDR_LENGTH 6
// Size of a MAC-address or BSSID
#define WL_IPV4_LENGTH 4
// Maximum size of a SSID list
#define WL_NETWORKS_LIST_MAXNUM 10
// Maxmium number of socket
#define MAX_SOCK_NUM 4
// Socket not available constant
#define SOCK_NOT_AVAIL 255
// Default state value for Wifi state field
#define NA_STATE -1
//Maximum number of attempts to establish wifi connection
#define WL_MAX_ATTEMPT_CONNECTION 10
typedef enum {
WL_NO_SHIELD = 255,
WL_IDLE_STATUS = 0,
WL_NO_SSID_AVAIL,
WL_SCAN_COMPLETED,
WL_CONNECTED,
WL_CONNECT_FAILED,
WL_CONNECTION_LOST,
WL_DISCONNECTED
} wl_status_t;
/* Encryption modes */
enum wl_enc_type { /* Values map to 802.11 encryption suites... */
ENC_TYPE_WEP = 5,
ENC_TYPE_TKIP = 2,
ENC_TYPE_CCMP = 4,
/* ... except these two, 7 and 8 are reserved in 802.11-2007 */
ENC_TYPE_NONE = 7,
ENC_TYPE_AUTO = 8
};
#if !defined(LWIP_INTERNAL)
enum wl_tcp_state {
CLOSED = 0,
LISTEN = 1,
SYN_SENT = 2,
SYN_RCVD = 3,
ESTABLISHED = 4,
FIN_WAIT_1 = 5,
FIN_WAIT_2 = 6,
CLOSE_WAIT = 7,
CLOSING = 8,
LAST_ACK = 9,
TIME_WAIT = 10
};
#endif
#endif /* WL_DEFINITIONS_H_ */

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/*
* Copyright (c) 2001-2004 Swedish Institute of Computer Science.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGE.
*
* This file is part of the lwIP TCP/IP stack.
*
* Author: Adam Dunkels <adam@sics.se>
*
*/
#ifndef __LWIP_API_H__
#define __LWIP_API_H__
#include "lwip/opt.h"
#if LWIP_NETCONN /* don't build if not configured for use in lwipopts.h */
#include <stddef.h> /* for size_t */
#include "lwip/netbuf.h"
#include "lwip/sys.h"
#include "lwip/ip_addr.h"
#include "lwip/err.h"
#ifdef __cplusplus
extern "C" {
#endif
/* Throughout this file, IP addresses and port numbers are expected to be in
* the same byte order as in the corresponding pcb.
*/
/* Flags for netconn_write (u8_t) */
#define NETCONN_NOFLAG 0x00
#define NETCONN_NOCOPY 0x00 /* Only for source code compatibility */
#define NETCONN_COPY 0x01
#define NETCONN_MORE 0x02
#define NETCONN_DONTBLOCK 0x04
/* Flags for struct netconn.flags (u8_t) */
/** TCP: when data passed to netconn_write doesn't fit into the send buffer,
this temporarily stores whether to wake up the original application task
if data couldn't be sent in the first try. */
#define NETCONN_FLAG_WRITE_DELAYED 0x01
/** Should this netconn avoid blocking? */
#define NETCONN_FLAG_NON_BLOCKING 0x02
/** Was the last connect action a non-blocking one? */
#define NETCONN_FLAG_IN_NONBLOCKING_CONNECT 0x04
/** If this is set, a TCP netconn must call netconn_recved() to update
the TCP receive window (done automatically if not set). */
#define NETCONN_FLAG_NO_AUTO_RECVED 0x08
/** If a nonblocking write has been rejected before, poll_tcp needs to
check if the netconn is writable again */
#define NETCONN_FLAG_CHECK_WRITESPACE 0x10
/* Helpers to process several netconn_types by the same code */
#define NETCONNTYPE_GROUP(t) (t&0xF0)
#define NETCONNTYPE_DATAGRAM(t) (t&0xE0)
/** Protocol family and type of the netconn */
enum netconn_type {
NETCONN_INVALID = 0,
/* NETCONN_TCP Group */
NETCONN_TCP = 0x10,
/* NETCONN_UDP Group */
NETCONN_UDP = 0x20,
NETCONN_UDPLITE = 0x21,
NETCONN_UDPNOCHKSUM= 0x22,
/* NETCONN_RAW Group */
NETCONN_RAW = 0x40
};
/** Current state of the netconn. Non-TCP netconns are always
* in state NETCONN_NONE! */
enum netconn_state {
NETCONN_NONE,
NETCONN_WRITE,
NETCONN_LISTEN,
NETCONN_CONNECT,
NETCONN_CLOSE
};
/** Use to inform the callback function about changes */
enum netconn_evt {
NETCONN_EVT_RCVPLUS,
NETCONN_EVT_RCVMINUS,
NETCONN_EVT_SENDPLUS,
NETCONN_EVT_SENDMINUS,
NETCONN_EVT_ERROR
};
#if LWIP_IGMP
/** Used for netconn_join_leave_group() */
enum netconn_igmp {
NETCONN_JOIN,
NETCONN_LEAVE
};
#endif /* LWIP_IGMP */
/* forward-declare some structs to avoid to include their headers */
struct ip_pcb;
struct tcp_pcb;
struct udp_pcb;
struct raw_pcb;
struct netconn;
struct api_msg_msg;
/** A callback prototype to inform about events for a netconn */
typedef void (* netconn_callback)(struct netconn *, enum netconn_evt, u16_t len);
/** A netconn descriptor */
struct netconn {
/** type of the netconn (TCP, UDP or RAW) */
enum netconn_type type;
/** current state of the netconn */
enum netconn_state state;
/** the lwIP internal protocol control block */
union {
struct ip_pcb *ip;
struct tcp_pcb *tcp;
struct udp_pcb *udp;
struct raw_pcb *raw;
} pcb;
/** the last error this netconn had */
err_t last_err;
/** sem that is used to synchroneously execute functions in the core context */
sys_sem_t op_completed;
/** mbox where received packets are stored until they are fetched
by the netconn application thread (can grow quite big) */
sys_mbox_t recvmbox;
#if LWIP_TCP
/** mbox where new connections are stored until processed
by the application thread */
sys_mbox_t acceptmbox;
#endif /* LWIP_TCP */
/** only used for socket layer */
#if LWIP_SOCKET
int socket;
#endif /* LWIP_SOCKET */
#if LWIP_SO_RCVTIMEO
/** timeout to wait for new data to be received
(or connections to arrive for listening netconns) */
int recv_timeout;
#endif /* LWIP_SO_RCVTIMEO */
#if LWIP_SO_RCVBUF
/** maximum amount of bytes queued in recvmbox
not used for TCP: adjust TCP_WND instead! */
int recv_bufsize;
/** number of bytes currently in recvmbox to be received,
tested against recv_bufsize to limit bytes on recvmbox
for UDP and RAW, used for FIONREAD */
s16_t recv_avail;
#endif /* LWIP_SO_RCVBUF */
/** flags holding more netconn-internal state, see NETCONN_FLAG_* defines */
u8_t flags;
#if LWIP_TCP
/** TCP: when data passed to netconn_write doesn't fit into the send buffer,
this temporarily stores how much is already sent. */
size_t write_offset;
/** TCP: when data passed to netconn_write doesn't fit into the send buffer,
this temporarily stores the message.
Also used during connect and close. */
struct api_msg_msg *current_msg;
#endif /* LWIP_TCP */
/** A callback function that is informed about events for this netconn */
netconn_callback callback;
};
/** Register an Network connection event */
#define API_EVENT(c,e,l) if (c->callback) { \
(*c->callback)(c, e, l); \
}
/** Set conn->last_err to err but don't overwrite fatal errors */
#define NETCONN_SET_SAFE_ERR(conn, err) do { \
SYS_ARCH_DECL_PROTECT(lev); \
SYS_ARCH_PROTECT(lev); \
if (!ERR_IS_FATAL((conn)->last_err)) { \
(conn)->last_err = err; \
} \
SYS_ARCH_UNPROTECT(lev); \
} while(0);
/* Network connection functions: */
#define netconn_new(t) netconn_new_with_proto_and_callback(t, 0, NULL)
#define netconn_new_with_callback(t, c) netconn_new_with_proto_and_callback(t, 0, c)
struct
netconn *netconn_new_with_proto_and_callback(enum netconn_type t, u8_t proto,
netconn_callback callback);
err_t netconn_delete(struct netconn *conn);
/** Get the type of a netconn (as enum netconn_type). */
#define netconn_type(conn) (conn->type)
err_t netconn_getaddr(struct netconn *conn, ip_addr_t *addr,
u16_t *port, u8_t local);
#define netconn_peer(c,i,p) netconn_getaddr(c,i,p,0)
#define netconn_addr(c,i,p) netconn_getaddr(c,i,p,1)
err_t netconn_bind(struct netconn *conn, ip_addr_t *addr, u16_t port);
err_t netconn_connect(struct netconn *conn, ip_addr_t *addr, u16_t port);
err_t netconn_disconnect (struct netconn *conn);
err_t netconn_listen_with_backlog(struct netconn *conn, u8_t backlog);
#define netconn_listen(conn) netconn_listen_with_backlog(conn, TCP_DEFAULT_LISTEN_BACKLOG)
err_t netconn_accept(struct netconn *conn, struct netconn **new_conn);
err_t netconn_recv(struct netconn *conn, struct netbuf **new_buf);
err_t netconn_recv_tcp_pbuf(struct netconn *conn, struct pbuf **new_buf);
void netconn_recved(struct netconn *conn, u32_t length);
err_t netconn_sendto(struct netconn *conn, struct netbuf *buf,
ip_addr_t *addr, u16_t port);
err_t netconn_send(struct netconn *conn, struct netbuf *buf);
err_t netconn_write(struct netconn *conn, const void *dataptr, size_t size,
u8_t apiflags);
err_t netconn_close(struct netconn *conn);
err_t netconn_shutdown(struct netconn *conn, u8_t shut_rx, u8_t shut_tx);
#if LWIP_IGMP
err_t netconn_join_leave_group(struct netconn *conn, ip_addr_t *multiaddr,
ip_addr_t *netif_addr, enum netconn_igmp join_or_leave);
#endif /* LWIP_IGMP */
#if LWIP_DNS
err_t netconn_gethostbyname(const char *name, ip_addr_t *addr);
#endif /* LWIP_DNS */
#define netconn_err(conn) ((conn)->last_err)
#define netconn_recv_bufsize(conn) ((conn)->recv_bufsize)
/** Set the blocking status of netconn calls (@todo: write/send is missing) */
#define netconn_set_nonblocking(conn, val) do { if(val) { \
(conn)->flags |= NETCONN_FLAG_NON_BLOCKING; \
} else { \
(conn)->flags &= ~ NETCONN_FLAG_NON_BLOCKING; }} while(0)
/** Get the blocking status of netconn calls (@todo: write/send is missing) */
#define netconn_is_nonblocking(conn) (((conn)->flags & NETCONN_FLAG_NON_BLOCKING) != 0)
/** TCP: Set the no-auto-recved status of netconn calls (see NETCONN_FLAG_NO_AUTO_RECVED) */
#define netconn_set_noautorecved(conn, val) do { if(val) { \
(conn)->flags |= NETCONN_FLAG_NO_AUTO_RECVED; \
} else { \
(conn)->flags &= ~ NETCONN_FLAG_NO_AUTO_RECVED; }} while(0)
/** TCP: Get the no-auto-recved status of netconn calls (see NETCONN_FLAG_NO_AUTO_RECVED) */
#define netconn_get_noautorecved(conn) (((conn)->flags & NETCONN_FLAG_NO_AUTO_RECVED) != 0)
#if LWIP_SO_RCVTIMEO
/** Set the receive timeout in milliseconds */
#define netconn_set_recvtimeout(conn, timeout) ((conn)->recv_timeout = (timeout))
/** Get the receive timeout in milliseconds */
#define netconn_get_recvtimeout(conn) ((conn)->recv_timeout)
#endif /* LWIP_SO_RCVTIMEO */
#if LWIP_SO_RCVBUF
/** Set the receive buffer in bytes */
#define netconn_set_recvbufsize(conn, recvbufsize) ((conn)->recv_bufsize = (recvbufsize))
/** Get the receive buffer in bytes */
#define netconn_get_recvbufsize(conn) ((conn)->recv_bufsize)
#endif /* LWIP_SO_RCVBUF*/
#ifdef __cplusplus
}
#endif
#endif /* LWIP_NETCONN */
#endif /* __LWIP_API_H__ */

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/*
* Copyright (c) 2001-2004 Swedish Institute of Computer Science.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGE.
*
* This file is part of the lwIP TCP/IP stack.
*
* Author: Adam Dunkels <adam@sics.se>
*
*/
#ifndef __LWIP_API_MSG_H__
#define __LWIP_API_MSG_H__
#include "lwip/opt.h"
#if LWIP_NETCONN /* don't build if not configured for use in lwipopts.h */
#include <stddef.h> /* for size_t */
#include "lwip/ip_addr.h"
#include "lwip/err.h"
#include "lwip/sys.h"
#include "lwip/igmp.h"
#include "lwip/api.h"
#ifdef __cplusplus
extern "C" {
#endif
/* For the netconn API, these values are use as a bitmask! */
#define NETCONN_SHUT_RD 1
#define NETCONN_SHUT_WR 2
#define NETCONN_SHUT_RDWR (NETCONN_SHUT_RD | NETCONN_SHUT_WR)
/* IP addresses and port numbers are expected to be in
* the same byte order as in the corresponding pcb.
*/
/** This struct includes everything that is necessary to execute a function
for a netconn in another thread context (mainly used to process netconns
in the tcpip_thread context to be thread safe). */
struct api_msg_msg {
/** The netconn which to process - always needed: it includes the semaphore
which is used to block the application thread until the function finished. */
struct netconn *conn;
/** The return value of the function executed in tcpip_thread. */
err_t err;
/** Depending on the executed function, one of these union members is used */
union {
/** used for do_send */
struct netbuf *b;
/** used for do_newconn */
struct {
u8_t proto;
} n;
/** used for do_bind and do_connect */
struct {
ip_addr_t *ipaddr;
u16_t port;
} bc;
/** used for do_getaddr */
struct {
ip_addr_t *ipaddr;
u16_t *port;
u8_t local;
} ad;
/** used for do_write */
struct {
const void *dataptr;
size_t len;
u8_t apiflags;
} w;
/** used for do_recv */
struct {
u32_t len;
} r;
/** used for do_close (/shutdown) */
struct {
u8_t shut;
} sd;
#if LWIP_IGMP
/** used for do_join_leave_group */
struct {
ip_addr_t *multiaddr;
ip_addr_t *netif_addr;
enum netconn_igmp join_or_leave;
} jl;
#endif /* LWIP_IGMP */
#if TCP_LISTEN_BACKLOG
struct {
u8_t backlog;
} lb;
#endif /* TCP_LISTEN_BACKLOG */
} msg;
};
/** This struct contains a function to execute in another thread context and
a struct api_msg_msg that serves as an argument for this function.
This is passed to tcpip_apimsg to execute functions in tcpip_thread context. */
struct api_msg {
/** function to execute in tcpip_thread context */
void (* function)(struct api_msg_msg *msg);
/** arguments for this function */
struct api_msg_msg msg;
};
#if LWIP_DNS
/** As do_gethostbyname requires more arguments but doesn't require a netconn,
it has its own struct (to avoid struct api_msg getting bigger than necessary).
do_gethostbyname must be called using tcpip_callback instead of tcpip_apimsg
(see netconn_gethostbyname). */
struct dns_api_msg {
/** Hostname to query or dotted IP address string */
const char *name;
/** Rhe resolved address is stored here */
ip_addr_t *addr;
/** This semaphore is posted when the name is resolved, the application thread
should wait on it. */
sys_sem_t *sem;
/** Errors are given back here */
err_t *err;
};
#endif /* LWIP_DNS */
void do_newconn ( struct api_msg_msg *msg);
void do_delconn ( struct api_msg_msg *msg);
void do_bind ( struct api_msg_msg *msg);
void do_connect ( struct api_msg_msg *msg);
void do_disconnect ( struct api_msg_msg *msg);
void do_listen ( struct api_msg_msg *msg);
void do_send ( struct api_msg_msg *msg);
void do_recv ( struct api_msg_msg *msg);
void do_write ( struct api_msg_msg *msg);
void do_getaddr ( struct api_msg_msg *msg);
void do_close ( struct api_msg_msg *msg);
void do_shutdown ( struct api_msg_msg *msg);
#if LWIP_IGMP
void do_join_leave_group( struct api_msg_msg *msg);
#endif /* LWIP_IGMP */
#if LWIP_DNS
void do_gethostbyname(void *arg);
#endif /* LWIP_DNS */
struct netconn* netconn_alloc(enum netconn_type t, netconn_callback callback);
void netconn_free(struct netconn *conn);
#ifdef __cplusplus
}
#endif
#endif /* LWIP_NETCONN */
#endif /* __LWIP_API_MSG_H__ */

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/*
* Copyright (c) 2001-2004 Swedish Institute of Computer Science.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGE.
*
* This file is part of the lwIP TCP/IP stack.
*
* Author: Adam Dunkels <adam@sics.se>
*
*/
#ifndef __LWIP_ARCH_H__
#define __LWIP_ARCH_H__
#ifndef LITTLE_ENDIAN
#define LITTLE_ENDIAN 1234
#endif
#ifndef BIG_ENDIAN
#define BIG_ENDIAN 4321
#endif
#include "arch/cc.h"
/** Temporary: define format string for size_t if not defined in cc.h */
#ifndef SZT_F
#define SZT_F U32_F
#endif /* SZT_F */
/** Temporary upgrade helper: define format string for u8_t as hex if not
defined in cc.h */
#ifndef X8_F
#define X8_F "02x"
#endif /* X8_F */
#ifdef __cplusplus
extern "C" {
#endif
#ifndef PACK_STRUCT_BEGIN
#define PACK_STRUCT_BEGIN
#endif /* PACK_STRUCT_BEGIN */
#ifndef PACK_STRUCT_END
#define PACK_STRUCT_END
#endif /* PACK_STRUCT_END */
#ifndef PACK_STRUCT_FIELD
#define PACK_STRUCT_FIELD(x) x
#endif /* PACK_STRUCT_FIELD */
#ifndef LWIP_UNUSED_ARG
#define LWIP_UNUSED_ARG(x) (void)x
#endif /* LWIP_UNUSED_ARG */
#ifdef LWIP_PROVIDE_ERRNO
#define EPERM 1 /* Operation not permitted */
#define ENOENT 2 /* No such file or directory */
#define ESRCH 3 /* No such process */
#define EINTR 4 /* Interrupted system call */
#define EIO 5 /* I/O error */
#define ENXIO 6 /* No such device or address */
#define E2BIG 7 /* Arg list too long */
#define ENOEXEC 8 /* Exec format error */
#define EBADF 9 /* Bad file number */
#define ECHILD 10 /* No child processes */
#define EAGAIN 11 /* Try again */
#define ENOMEM 12 /* Out of memory */
#define EACCES 13 /* Permission denied */
#define EFAULT 14 /* Bad address */
#define ENOTBLK 15 /* Block device required */
#define EBUSY 16 /* Device or resource busy */
#define EEXIST 17 /* File exists */
#define EXDEV 18 /* Cross-device link */
#define ENODEV 19 /* No such device */
#define ENOTDIR 20 /* Not a directory */
#define EISDIR 21 /* Is a directory */
#define EINVAL 22 /* Invalid argument */
#define ENFILE 23 /* File table overflow */
#define EMFILE 24 /* Too many open files */
#define ENOTTY 25 /* Not a typewriter */
#define ETXTBSY 26 /* Text file busy */
#define EFBIG 27 /* File too large */
#define ENOSPC 28 /* No space left on device */
#define ESPIPE 29 /* Illegal seek */
#define EROFS 30 /* Read-only file system */
#define EMLINK 31 /* Too many links */
#define EPIPE 32 /* Broken pipe */
#define EDOM 33 /* Math argument out of domain of func */
#define ERANGE 34 /* Math result not representable */
#define EDEADLK 35 /* Resource deadlock would occur */
#define ENAMETOOLONG 36 /* File name too long */
#define ENOLCK 37 /* No record locks available */
#define ENOSYS 38 /* Function not implemented */
#define ENOTEMPTY 39 /* Directory not empty */
#define ELOOP 40 /* Too many symbolic links encountered */
#define EWOULDBLOCK EAGAIN /* Operation would block */
#define ENOMSG 42 /* No message of desired type */
#define EIDRM 43 /* Identifier removed */
#define ECHRNG 44 /* Channel number out of range */
#define EL2NSYNC 45 /* Level 2 not synchronized */
#define EL3HLT 46 /* Level 3 halted */
#define EL3RST 47 /* Level 3 reset */
#define ELNRNG 48 /* Link number out of range */
#define EUNATCH 49 /* Protocol driver not attached */
#define ENOCSI 50 /* No CSI structure available */
#define EL2HLT 51 /* Level 2 halted */
#define EBADE 52 /* Invalid exchange */
#define EBADR 53 /* Invalid request descriptor */
#define EXFULL 54 /* Exchange full */
#define ENOANO 55 /* No anode */
#define EBADRQC 56 /* Invalid request code */
#define EBADSLT 57 /* Invalid slot */
#define EDEADLOCK EDEADLK
#define EBFONT 59 /* Bad font file format */
#define ENOSTR 60 /* Device not a stream */
#define ENODATA 61 /* No data available */
#define ETIME 62 /* Timer expired */
#define ENOSR 63 /* Out of streams resources */
#define ENONET 64 /* Machine is not on the network */
#define ENOPKG 65 /* Package not installed */
#define EREMOTE 66 /* Object is remote */
#define ENOLINK 67 /* Link has been severed */
#define EADV 68 /* Advertise error */
#define ESRMNT 69 /* Srmount error */
#define ECOMM 70 /* Communication error on send */
#define EPROTO 71 /* Protocol error */
#define EMULTIHOP 72 /* Multihop attempted */
#define EDOTDOT 73 /* RFS specific error */
#define EBADMSG 74 /* Not a data message */
#define EOVERFLOW 75 /* Value too large for defined data type */
#define ENOTUNIQ 76 /* Name not unique on network */
#define EBADFD 77 /* File descriptor in bad state */
#define EREMCHG 78 /* Remote address changed */
#define ELIBACC 79 /* Can not access a needed shared library */
#define ELIBBAD 80 /* Accessing a corrupted shared library */
#define ELIBSCN 81 /* .lib section in a.out corrupted */
#define ELIBMAX 82 /* Attempting to link in too many shared libraries */
#define ELIBEXEC 83 /* Cannot exec a shared library directly */
#define EILSEQ 84 /* Illegal byte sequence */
#define ERESTART 85 /* Interrupted system call should be restarted */
#define ESTRPIPE 86 /* Streams pipe error */
#define EUSERS 87 /* Too many users */
#define ENOTSOCK 88 /* Socket operation on non-socket */
#define EDESTADDRREQ 89 /* Destination address required */
#define EMSGSIZE 90 /* Message too long */
#define EPROTOTYPE 91 /* Protocol wrong type for socket */
#define ENOPROTOOPT 92 /* Protocol not available */
#define EPROTONOSUPPORT 93 /* Protocol not supported */
#define ESOCKTNOSUPPORT 94 /* Socket type not supported */
#define EOPNOTSUPP 95 /* Operation not supported on transport endpoint */
#define EPFNOSUPPORT 96 /* Protocol family not supported */
#define EAFNOSUPPORT 97 /* Address family not supported by protocol */
#define EADDRINUSE 98 /* Address already in use */
#define EADDRNOTAVAIL 99 /* Cannot assign requested address */
#define ENETDOWN 100 /* Network is down */
#define ENETUNREACH 101 /* Network is unreachable */
#define ENETRESET 102 /* Network dropped connection because of reset */
#define ECONNABORTED 103 /* Software caused connection abort */
#define ECONNRESET 104 /* Connection reset by peer */
#define ENOBUFS 105 /* No buffer space available */
#define EISCONN 106 /* Transport endpoint is already connected */
#define ENOTCONN 107 /* Transport endpoint is not connected */
#define ESHUTDOWN 108 /* Cannot send after transport endpoint shutdown */
#define ETOOMANYREFS 109 /* Too many references: cannot splice */
#define ETIMEDOUT 110 /* Connection timed out */
#define ECONNREFUSED 111 /* Connection refused */
#define EHOSTDOWN 112 /* Host is down */
#define EHOSTUNREACH 113 /* No route to host */
#define EALREADY 114 /* Operation already in progress */
#define EINPROGRESS 115 /* Operation now in progress */
#define ESTALE 116 /* Stale NFS file handle */
#define EUCLEAN 117 /* Structure needs cleaning */
#define ENOTNAM 118 /* Not a XENIX named type file */
#define ENAVAIL 119 /* No XENIX semaphores available */
#define EISNAM 120 /* Is a named type file */
#define EREMOTEIO 121 /* Remote I/O error */
#define EDQUOT 122 /* Quota exceeded */
#define ENOMEDIUM 123 /* No medium found */
#define EMEDIUMTYPE 124 /* Wrong medium type */
#define ENSROK 0 /* DNS server returned answer with no data */
#define ENSRNODATA 160 /* DNS server returned answer with no data */
#define ENSRFORMERR 161 /* DNS server claims query was misformatted */
#define ENSRSERVFAIL 162 /* DNS server returned general failure */
#define ENSRNOTFOUND 163 /* Domain name not found */
#define ENSRNOTIMP 164 /* DNS server does not implement requested operation */
#define ENSRREFUSED 165 /* DNS server refused query */
#define ENSRBADQUERY 166 /* Misformatted DNS query */
#define ENSRBADNAME 167 /* Misformatted domain name */
#define ENSRBADFAMILY 168 /* Unsupported address family */
#define ENSRBADRESP 169 /* Misformatted DNS reply */
#define ENSRCONNREFUSED 170 /* Could not contact DNS servers */
#define ENSRTIMEOUT 171 /* Timeout while contacting DNS servers */
#define ENSROF 172 /* End of file */
#define ENSRFILE 173 /* Error reading file */
#define ENSRNOMEM 174 /* Out of memory */
#define ENSRDESTRUCTION 175 /* Application terminated lookup */
#define ENSRQUERYDOMAINTOOLONG 176 /* Domain name is too long */
#define ENSRCNAMELOOP 177 /* Domain name is too long */
#ifndef errno
extern int errno;
#endif
#endif /* LWIP_PROVIDE_ERRNO */
#ifdef __cplusplus
}
#endif
#endif /* __LWIP_ARCH_H__ */

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/**
* @file
*
* AutoIP Automatic LinkLocal IP Configuration
*/
/*
*
* Copyright (c) 2007 Dominik Spies <kontakt@dspies.de>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGE.
*
* Author: Dominik Spies <kontakt@dspies.de>
*
* This is a AutoIP implementation for the lwIP TCP/IP stack. It aims to conform
* with RFC 3927.
*
*
* Please coordinate changes and requests with Dominik Spies
* <kontakt@dspies.de>
*/
#ifndef __LWIP_AUTOIP_H__
#define __LWIP_AUTOIP_H__
#include "lwip/opt.h"
#if LWIP_AUTOIP /* don't build if not configured for use in lwipopts.h */
#include "lwip/netif.h"
#include "lwip/udp.h"
#include "netif/etharp.h"
#ifdef __cplusplus
extern "C" {
#endif
/* AutoIP Timing */
#define AUTOIP_TMR_INTERVAL 100
#define AUTOIP_TICKS_PER_SECOND (1000 / AUTOIP_TMR_INTERVAL)
/* RFC 3927 Constants */
#define PROBE_WAIT 1 /* second (initial random delay) */
#define PROBE_MIN 1 /* second (minimum delay till repeated probe) */
#define PROBE_MAX 2 /* seconds (maximum delay till repeated probe) */
#define PROBE_NUM 3 /* (number of probe packets) */
#define ANNOUNCE_NUM 2 /* (number of announcement packets) */
#define ANNOUNCE_INTERVAL 2 /* seconds (time between announcement packets) */
#define ANNOUNCE_WAIT 2 /* seconds (delay before announcing) */
#define MAX_CONFLICTS 10 /* (max conflicts before rate limiting) */
#define RATE_LIMIT_INTERVAL 60 /* seconds (delay between successive attempts) */
#define DEFEND_INTERVAL 10 /* seconds (min. wait between defensive ARPs) */
/* AutoIP client states */
#define AUTOIP_STATE_OFF 0
#define AUTOIP_STATE_PROBING 1
#define AUTOIP_STATE_ANNOUNCING 2
#define AUTOIP_STATE_BOUND 3
struct autoip
{
ip_addr_t llipaddr; /* the currently selected, probed, announced or used LL IP-Address */
u8_t state; /* current AutoIP state machine state */
u8_t sent_num; /* sent number of probes or announces, dependent on state */
u16_t ttw; /* ticks to wait, tick is AUTOIP_TMR_INTERVAL long */
u8_t lastconflict; /* ticks until a conflict can be solved by defending */
u8_t tried_llipaddr; /* total number of probed/used Link Local IP-Addresses */
};
/** Init srand, has to be called before entering mainloop */
void autoip_init(void);
/** Set a struct autoip allocated by the application to work with */
void autoip_set_struct(struct netif *netif, struct autoip *autoip);
/** Start AutoIP client */
err_t autoip_start(struct netif *netif);
/** Stop AutoIP client */
err_t autoip_stop(struct netif *netif);
/** Handles every incoming ARP Packet, called by etharp_arp_input */
void autoip_arp_reply(struct netif *netif, struct etharp_hdr *hdr);
/** Has to be called in loop every AUTOIP_TMR_INTERVAL milliseconds */
void autoip_tmr(void);
/** Handle a possible change in the network configuration */
void autoip_network_changed(struct netif *netif);
#ifdef __cplusplus
}
#endif
#endif /* LWIP_AUTOIP */
#endif /* __LWIP_AUTOIP_H__ */

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/*
* Copyright (c) 2001-2004 Swedish Institute of Computer Science.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGE.
*
* This file is part of the lwIP TCP/IP stack.
*
* Author: Adam Dunkels <adam@sics.se>
*
*/
#ifndef __LWIP_DEBUG_H__
#define __LWIP_DEBUG_H__
#include "lwip/arch.h"
/** lower two bits indicate debug level
* - 0 all
* - 1 warning
* - 2 serious
* - 3 severe
*/
#define LWIP_DBG_LEVEL_ALL 0x00
#define LWIP_DBG_LEVEL_OFF LWIP_DBG_LEVEL_ALL /* compatibility define only */
#define LWIP_DBG_LEVEL_WARNING 0x01 /* bad checksums, dropped packets, ... */
#define LWIP_DBG_LEVEL_SERIOUS 0x02 /* memory allocation failures, ... */
#define LWIP_DBG_LEVEL_SEVERE 0x03
#define LWIP_DBG_MASK_LEVEL 0x03
/** flag for LWIP_DEBUGF to enable that debug message */
#define LWIP_DBG_ON 0x80U
/** flag for LWIP_DEBUGF to disable that debug message */
#define LWIP_DBG_OFF 0x00U
/** flag for LWIP_DEBUGF indicating a tracing message (to follow program flow) */
#define LWIP_DBG_TRACE 0x40U
/** flag for LWIP_DEBUGF indicating a state debug message (to follow module states) */
#define LWIP_DBG_STATE 0x20U
/** flag for LWIP_DEBUGF indicating newly added code, not thoroughly tested yet */
#define LWIP_DBG_FRESH 0x10U
/** flag for LWIP_DEBUGF to halt after printing this debug message */
#define LWIP_DBG_HALT 0x08U
#ifndef LWIP_NOASSERT
#define LWIP_ASSERT(message, assertion) do { if(!(assertion)) \
LWIP_PLATFORM_ASSERT(message); } while(0)
#else /* LWIP_NOASSERT */
#define LWIP_ASSERT(message, assertion)
#endif /* LWIP_NOASSERT */
/** if "expression" isn't true, then print "message" and execute "handler" expression */
#ifndef LWIP_ERROR
#define LWIP_ERROR(message, expression, handler) do { if (!(expression)) { \
LWIP_PLATFORM_ASSERT(message); handler;}} while(0)
#endif /* LWIP_ERROR */
#ifdef LWIP_DEBUG
/** print debug message only if debug message type is enabled...
* AND is of correct type AND is at least LWIP_DBG_LEVEL
*/
#define LWIP_DEBUGF(debug, message) do { \
if ( \
((debug) & LWIP_DBG_ON) && \
((debug) & LWIP_DBG_TYPES_ON) && \
((s16_t)((debug) & LWIP_DBG_MASK_LEVEL) >= LWIP_DBG_MIN_LEVEL)) { \
LWIP_PLATFORM_DIAG(message); \
if ((debug) & LWIP_DBG_HALT) { \
while(1); \
} \
} \
} while(0)
#else /* LWIP_DEBUG */
#define LWIP_DEBUGF(debug, message)
#endif /* LWIP_DEBUG */
#endif /* __LWIP_DEBUG_H__ */

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/*
* Copyright (c) 2001-2004 Swedish Institute of Computer Science.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGE.
*
* This file is part of the lwIP TCP/IP stack.
*
* Author: Adam Dunkels <adam@sics.se>
*
*/
#ifndef __LWIP_DEF_H__
#define __LWIP_DEF_H__
/* arch.h might define NULL already */
#include "lwip/arch.h"
#include "lwip/opt.h"
#ifdef __cplusplus
extern "C" {
#endif
#define LWIP_MAX(x , y) (((x) > (y)) ? (x) : (y))
#define LWIP_MIN(x , y) (((x) < (y)) ? (x) : (y))
#ifndef NULL
#define NULL ((void *)0)
#endif
/** Get the absolute difference between 2 u32_t values (correcting overflows)
* 'a' is expected to be 'higher' (without overflow) than 'b'. */
#define LWIP_U32_DIFF(a, b) (((a) >= (b)) ? ((a) - (b)) : (((a) + ((b) ^ 0xFFFFFFFF) + 1)))
/* Endianess-optimized shifting of two u8_t to create one u16_t */
#if BYTE_ORDER == LITTLE_ENDIAN
#define LWIP_MAKE_U16(a, b) ((a << 8) | b)
#else
#define LWIP_MAKE_U16(a, b) ((b << 8) | a)
#endif
#ifndef LWIP_PLATFORM_BYTESWAP
#define LWIP_PLATFORM_BYTESWAP 0
#endif
#ifndef LWIP_PREFIX_BYTEORDER_FUNCS
/* workaround for naming collisions on some platforms */
#ifdef htons
#undef htons
#endif /* htons */
#ifdef htonl
#undef htonl
#endif /* htonl */
#ifdef ntohs
#undef ntohs
#endif /* ntohs */
#ifdef ntohl
#undef ntohl
#endif /* ntohl */
#define htons(x) lwip_htons(x)
#define ntohs(x) lwip_ntohs(x)
#define htonl(x) lwip_htonl(x)
#define ntohl(x) lwip_ntohl(x)
#endif /* LWIP_PREFIX_BYTEORDER_FUNCS */
#if BYTE_ORDER == BIG_ENDIAN
#define lwip_htons(x) (x)
#define lwip_ntohs(x) (x)
#define lwip_htonl(x) (x)
#define lwip_ntohl(x) (x)
#define PP_HTONS(x) (x)
#define PP_NTOHS(x) (x)
#define PP_HTONL(x) (x)
#define PP_NTOHL(x) (x)
#else /* BYTE_ORDER != BIG_ENDIAN */
#if LWIP_PLATFORM_BYTESWAP
#define lwip_htons(x) LWIP_PLATFORM_HTONS(x)
#define lwip_ntohs(x) LWIP_PLATFORM_HTONS(x)
#define lwip_htonl(x) LWIP_PLATFORM_HTONL(x)
#define lwip_ntohl(x) LWIP_PLATFORM_HTONL(x)
#else /* LWIP_PLATFORM_BYTESWAP */
u16_t lwip_htons(u16_t x);
u16_t lwip_ntohs(u16_t x);
u32_t lwip_htonl(u32_t x);
u32_t lwip_ntohl(u32_t x);
#endif /* LWIP_PLATFORM_BYTESWAP */
/* These macros should be calculated by the preprocessor and are used
with compile-time constants only (so that there is no little-endian
overhead at runtime). */
#define PP_HTONS(x) ((((x) & 0xff) << 8) | (((x) & 0xff00) >> 8))
#define PP_NTOHS(x) PP_HTONS(x)
#define PP_HTONL(x) ((((x) & 0xff) << 24) | \
(((x) & 0xff00) << 8) | \
(((x) & 0xff0000UL) >> 8) | \
(((x) & 0xff000000UL) >> 24))
#define PP_NTOHL(x) PP_HTONL(x)
#endif /* BYTE_ORDER == BIG_ENDIAN */
#ifdef __cplusplus
}
#endif
#endif /* __LWIP_DEF_H__ */

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/** @file
*/
#ifndef __LWIP_DHCP_H__
#define __LWIP_DHCP_H__
#include "lwip/opt.h"
#if LWIP_DHCP /* don't build if not configured for use in lwipopts.h */
#include "lwip/netif.h"
#include "lwip/udp.h"
#ifdef __cplusplus
extern "C" {
#endif
/** period (in seconds) of the application calling dhcp_coarse_tmr() */
#define DHCP_COARSE_TIMER_SECS 60
/** period (in milliseconds) of the application calling dhcp_coarse_tmr() */
#define DHCP_COARSE_TIMER_MSECS (DHCP_COARSE_TIMER_SECS * 1000UL)
/** period (in milliseconds) of the application calling dhcp_fine_tmr() */
#define DHCP_FINE_TIMER_MSECS 500
#define DHCP_CHADDR_LEN 16U
#define DHCP_SNAME_LEN 64U
#define DHCP_FILE_LEN 128U
struct dhcp
{
/** transaction identifier of last sent request */
u32_t xid;
/** our connection to the DHCP server */
struct udp_pcb *pcb;
/** incoming msg */
struct dhcp_msg *msg_in;
/** current DHCP state machine state */
u8_t state;
/** retries of current request */
u8_t tries;
#if LWIP_DHCP_AUTOIP_COOP
u8_t autoip_coop_state;
#endif
u8_t subnet_mask_given;
struct pbuf *p_out; /* pbuf of outcoming msg */
struct dhcp_msg *msg_out; /* outgoing msg */
u16_t options_out_len; /* outgoing msg options length */
u16_t request_timeout; /* #ticks with period DHCP_FINE_TIMER_SECS for request timeout */
u16_t t1_timeout; /* #ticks with period DHCP_COARSE_TIMER_SECS for renewal time */
u16_t t2_timeout; /* #ticks with period DHCP_COARSE_TIMER_SECS for rebind time */
ip_addr_t server_ip_addr; /* dhcp server address that offered this lease */
ip_addr_t offered_ip_addr;
ip_addr_t offered_sn_mask;
ip_addr_t offered_gw_addr;
u32_t offered_t0_lease; /* lease period (in seconds) */
u32_t offered_t1_renew; /* recommended renew time (usually 50% of lease period) */
u32_t offered_t2_rebind; /* recommended rebind time (usually 66% of lease period) */
/* @todo: LWIP_DHCP_BOOTP_FILE configuration option?
integrate with possible TFTP-client for booting? */
#define LWIP_DHCP_BOOTP_FILE 0
#if LWIP_DHCP_BOOTP_FILE
ip_addr_t offered_si_addr;
char boot_file_name[DHCP_FILE_LEN];
#endif /* LWIP_DHCP_BOOTPFILE */
};
/* MUST be compiled with "pack structs" or equivalent! */
#ifdef PACK_STRUCT_USE_INCLUDES
# include "arch/bpstruct.h"
#endif
PACK_STRUCT_BEGIN
/** minimum set of fields of any DHCP message */
struct dhcp_msg
{
PACK_STRUCT_FIELD(u8_t op);
PACK_STRUCT_FIELD(u8_t htype);
PACK_STRUCT_FIELD(u8_t hlen);
PACK_STRUCT_FIELD(u8_t hops);
PACK_STRUCT_FIELD(u32_t xid);
PACK_STRUCT_FIELD(u16_t secs);
PACK_STRUCT_FIELD(u16_t flags);
PACK_STRUCT_FIELD(ip_addr_p_t ciaddr);
PACK_STRUCT_FIELD(ip_addr_p_t yiaddr);
PACK_STRUCT_FIELD(ip_addr_p_t siaddr);
PACK_STRUCT_FIELD(ip_addr_p_t giaddr);
PACK_STRUCT_FIELD(u8_t chaddr[DHCP_CHADDR_LEN]);
PACK_STRUCT_FIELD(u8_t sname[DHCP_SNAME_LEN]);
PACK_STRUCT_FIELD(u8_t file[DHCP_FILE_LEN]);
PACK_STRUCT_FIELD(u32_t cookie);
#define DHCP_MIN_OPTIONS_LEN 68U
/** make sure user does not configure this too small */
#if ((defined(DHCP_OPTIONS_LEN)) && (DHCP_OPTIONS_LEN < DHCP_MIN_OPTIONS_LEN))
# undef DHCP_OPTIONS_LEN
#endif
/** allow this to be configured in lwipopts.h, but not too small */
#if (!defined(DHCP_OPTIONS_LEN))
/** set this to be sufficient for your options in outgoing DHCP msgs */
# define DHCP_OPTIONS_LEN DHCP_MIN_OPTIONS_LEN
#endif
PACK_STRUCT_FIELD(u8_t options[DHCP_OPTIONS_LEN]);
} PACK_STRUCT_STRUCT;
PACK_STRUCT_END
#ifdef PACK_STRUCT_USE_INCLUDES
# include "arch/epstruct.h"
#endif
void dhcp_set_struct(struct netif *netif, struct dhcp *dhcp);
/** Remove a struct dhcp previously set to the netif using dhcp_set_struct() */
#define dhcp_remove_struct(netif) do { (netif)->dhcp = NULL; } while(0)
void dhcp_cleanup(struct netif *netif);
/** start DHCP configuration */
err_t dhcp_start(struct netif *netif);
/** enforce early lease renewal (not needed normally)*/
err_t dhcp_renew(struct netif *netif);
/** release the DHCP lease, usually called before dhcp_stop()*/
err_t dhcp_release(struct netif *netif);
/** stop DHCP configuration */
void dhcp_stop(struct netif *netif);
/** inform server of our manual IP address */
void dhcp_inform(struct netif *netif);
/** Handle a possible change in the network configuration */
void dhcp_network_changed(struct netif *netif);
/** if enabled, check whether the offered IP address is not in use, using ARP */
#if DHCP_DOES_ARP_CHECK
void dhcp_arp_reply(struct netif *netif, ip_addr_t *addr);
#endif
/** to be called every minute */
void dhcp_coarse_tmr(void);
/** to be called every half second */
void dhcp_fine_tmr(void);
/** DHCP message item offsets and length */
#define DHCP_OP_OFS 0
#define DHCP_HTYPE_OFS 1
#define DHCP_HLEN_OFS 2
#define DHCP_HOPS_OFS 3
#define DHCP_XID_OFS 4
#define DHCP_SECS_OFS 8
#define DHCP_FLAGS_OFS 10
#define DHCP_CIADDR_OFS 12
#define DHCP_YIADDR_OFS 16
#define DHCP_SIADDR_OFS 20
#define DHCP_GIADDR_OFS 24
#define DHCP_CHADDR_OFS 28
#define DHCP_SNAME_OFS 44
#define DHCP_FILE_OFS 108
#define DHCP_MSG_LEN 236
#define DHCP_COOKIE_OFS DHCP_MSG_LEN
#define DHCP_OPTIONS_OFS (DHCP_MSG_LEN + 4)
#define DHCP_CLIENT_PORT 68
#define DHCP_SERVER_PORT 67
/** DHCP client states */
#define DHCP_OFF 0
#define DHCP_REQUESTING 1
#define DHCP_INIT 2
#define DHCP_REBOOTING 3
#define DHCP_REBINDING 4
#define DHCP_RENEWING 5
#define DHCP_SELECTING 6
#define DHCP_INFORMING 7
#define DHCP_CHECKING 8
#define DHCP_PERMANENT 9
#define DHCP_BOUND 10
/** not yet implemented #define DHCP_RELEASING 11 */
#define DHCP_BACKING_OFF 12
/** AUTOIP cooperatation flags */
#define DHCP_AUTOIP_COOP_STATE_OFF 0
#define DHCP_AUTOIP_COOP_STATE_ON 1
#define DHCP_BOOTREQUEST 1
#define DHCP_BOOTREPLY 2
/** DHCP message types */
#define DHCP_DISCOVER 1
#define DHCP_OFFER 2
#define DHCP_REQUEST 3
#define DHCP_DECLINE 4
#define DHCP_ACK 5
#define DHCP_NAK 6
#define DHCP_RELEASE 7
#define DHCP_INFORM 8
/** DHCP hardware type, currently only ethernet is supported */
#define DHCP_HTYPE_ETH 1
#define DHCP_MAGIC_COOKIE 0x63825363UL
/* This is a list of options for BOOTP and DHCP, see RFC 2132 for descriptions */
/** BootP options */
#define DHCP_OPTION_PAD 0
#define DHCP_OPTION_SUBNET_MASK 1 /* RFC 2132 3.3 */
#define DHCP_OPTION_ROUTER 3
#define DHCP_OPTION_DNS_SERVER 6
#define DHCP_OPTION_HOSTNAME 12
#define DHCP_OPTION_IP_TTL 23
#define DHCP_OPTION_MTU 26
#define DHCP_OPTION_BROADCAST 28
#define DHCP_OPTION_TCP_TTL 37
#define DHCP_OPTION_END 255
/** DHCP options */
#define DHCP_OPTION_REQUESTED_IP 50 /* RFC 2132 9.1, requested IP address */
#define DHCP_OPTION_LEASE_TIME 51 /* RFC 2132 9.2, time in seconds, in 4 bytes */
#define DHCP_OPTION_OVERLOAD 52 /* RFC2132 9.3, use file and/or sname field for options */
#define DHCP_OPTION_MESSAGE_TYPE 53 /* RFC 2132 9.6, important for DHCP */
#define DHCP_OPTION_MESSAGE_TYPE_LEN 1
#define DHCP_OPTION_SERVER_ID 54 /* RFC 2132 9.7, server IP address */
#define DHCP_OPTION_PARAMETER_REQUEST_LIST 55 /* RFC 2132 9.8, requested option types */
#define DHCP_OPTION_MAX_MSG_SIZE 57 /* RFC 2132 9.10, message size accepted >= 576 */
#define DHCP_OPTION_MAX_MSG_SIZE_LEN 2
#define DHCP_OPTION_T1 58 /* T1 renewal time */
#define DHCP_OPTION_T2 59 /* T2 rebinding time */
#define DHCP_OPTION_US 60
#define DHCP_OPTION_CLIENT_ID 61
#define DHCP_OPTION_TFTP_SERVERNAME 66
#define DHCP_OPTION_BOOTFILE 67
/** possible combinations of overloading the file and sname fields with options */
#define DHCP_OVERLOAD_NONE 0
#define DHCP_OVERLOAD_FILE 1
#define DHCP_OVERLOAD_SNAME 2
#define DHCP_OVERLOAD_SNAME_FILE 3
#ifdef __cplusplus
}
#endif
#endif /* LWIP_DHCP */
#endif /*__LWIP_DHCP_H__*/

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/**
* lwip DNS resolver header file.
* Author: Jim Pettinato
* April 2007
* ported from uIP resolv.c Copyright (c) 2002-2003, Adam Dunkels.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote
* products derived from this software without specific prior
* written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef __LWIP_DNS_H__
#define __LWIP_DNS_H__
#include "lwip/opt.h"
#if LWIP_DNS /* don't build if not configured for use in lwipopts.h */
#ifdef __cplusplus
extern "C" {
#endif
/** DNS timer period */
#define DNS_TMR_INTERVAL 1000
/** DNS field TYPE used for "Resource Records" */
#define DNS_RRTYPE_A 1 /* a host address */
#define DNS_RRTYPE_NS 2 /* an authoritative name server */
#define DNS_RRTYPE_MD 3 /* a mail destination (Obsolete - use MX) */
#define DNS_RRTYPE_MF 4 /* a mail forwarder (Obsolete - use MX) */
#define DNS_RRTYPE_CNAME 5 /* the canonical name for an alias */
#define DNS_RRTYPE_SOA 6 /* marks the start of a zone of authority */
#define DNS_RRTYPE_MB 7 /* a mailbox domain name (EXPERIMENTAL) */
#define DNS_RRTYPE_MG 8 /* a mail group member (EXPERIMENTAL) */
#define DNS_RRTYPE_MR 9 /* a mail rename domain name (EXPERIMENTAL) */
#define DNS_RRTYPE_NULL 10 /* a null RR (EXPERIMENTAL) */
#define DNS_RRTYPE_WKS 11 /* a well known service description */
#define DNS_RRTYPE_PTR 12 /* a domain name pointer */
#define DNS_RRTYPE_HINFO 13 /* host information */
#define DNS_RRTYPE_MINFO 14 /* mailbox or mail list information */
#define DNS_RRTYPE_MX 15 /* mail exchange */
#define DNS_RRTYPE_TXT 16 /* text strings */
/** DNS field CLASS used for "Resource Records" */
#define DNS_RRCLASS_IN 1 /* the Internet */
#define DNS_RRCLASS_CS 2 /* the CSNET class (Obsolete - used only for examples in some obsolete RFCs) */
#define DNS_RRCLASS_CH 3 /* the CHAOS class */
#define DNS_RRCLASS_HS 4 /* Hesiod [Dyer 87] */
#define DNS_RRCLASS_FLUSH 0x800 /* Flush bit */
/* The size used for the next line is rather a hack, but it prevents including socket.h in all files
that include memp.h, and that would possibly break portability (since socket.h defines some types
and constants possibly already define by the OS).
Calculation rule:
sizeof(struct addrinfo) + sizeof(struct sockaddr_in) + DNS_MAX_NAME_LENGTH + 1 byte zero-termination */
#define NETDB_ELEM_SIZE (32 + 16 + DNS_MAX_NAME_LENGTH + 1)
#if DNS_LOCAL_HOSTLIST
/** struct used for local host-list */
struct local_hostlist_entry {
/** static hostname */
const char *name;
/** static host address in network byteorder */
ip_addr_t addr;
struct local_hostlist_entry *next;
};
#if DNS_LOCAL_HOSTLIST_IS_DYNAMIC
#ifndef DNS_LOCAL_HOSTLIST_MAX_NAMELEN
#define DNS_LOCAL_HOSTLIST_MAX_NAMELEN DNS_MAX_NAME_LENGTH
#endif
#define LOCALHOSTLIST_ELEM_SIZE ((sizeof(struct local_hostlist_entry) + DNS_LOCAL_HOSTLIST_MAX_NAMELEN + 1))
#endif /* DNS_LOCAL_HOSTLIST_IS_DYNAMIC */
#endif /* DNS_LOCAL_HOSTLIST */
/** Callback which is invoked when a hostname is found.
* A function of this type must be implemented by the application using the DNS resolver.
* @param name pointer to the name that was looked up.
* @param ipaddr pointer to an ip_addr_t containing the IP address of the hostname,
* or NULL if the name could not be found (or on any other error).
* @param callback_arg a user-specified callback argument passed to dns_gethostbyname
*/
typedef void (*dns_found_callback)(const char *name, ip_addr_t *ipaddr, void *callback_arg);
void dns_init(void);
void dns_tmr(void);
void dns_setserver(u8_t numdns, ip_addr_t *dnsserver);
ip_addr_t dns_getserver(u8_t numdns);
err_t dns_gethostbyname(const char *hostname, ip_addr_t *addr,
dns_found_callback found, void *callback_arg);
#if DNS_LOCAL_HOSTLIST && DNS_LOCAL_HOSTLIST_IS_DYNAMIC
int dns_local_removehost(const char *hostname, const ip_addr_t *addr);
err_t dns_local_addhost(const char *hostname, const ip_addr_t *addr);
#endif /* DNS_LOCAL_HOSTLIST && DNS_LOCAL_HOSTLIST_IS_DYNAMIC */
#ifdef __cplusplus
}
#endif
#endif /* LWIP_DNS */
#endif /* __LWIP_DNS_H__ */

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/*
* Copyright (c) 2001-2004 Swedish Institute of Computer Science.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGE.
*
* This file is part of the lwIP TCP/IP stack.
*
* Author: Adam Dunkels <adam@sics.se>
*
*/
#ifndef __LWIP_ERR_H__
#define __LWIP_ERR_H__
#include "lwip/opt.h"
#include "lwip/arch.h"
#ifdef __cplusplus
extern "C" {
#endif
/** Define LWIP_ERR_T in cc.h if you want to use
* a different type for your platform (must be signed). */
#ifdef LWIP_ERR_T
typedef LWIP_ERR_T err_t;
#else /* LWIP_ERR_T */
typedef s8_t err_t;
#endif /* LWIP_ERR_T*/
/* Definitions for error constants. */
#define ERR_OK 0 /* No error, everything OK. */
#define ERR_MEM -1 /* Out of memory error. */
#define ERR_BUF -2 /* Buffer error. */
#define ERR_TIMEOUT -3 /* Timeout. */
#define ERR_RTE -4 /* Routing problem. */
#define ERR_INPROGRESS -5 /* Operation in progress */
#define ERR_VAL -6 /* Illegal value. */
#define ERR_WOULDBLOCK -7 /* Operation would block. */
#define ERR_IS_FATAL(e) ((e) < ERR_WOULDBLOCK)
#define ERR_ABRT -8 /* Connection aborted. */
#define ERR_RST -9 /* Connection reset. */
#define ERR_CLSD -10 /* Connection closed. */
#define ERR_CONN -11 /* Not connected. */
#define ERR_ARG -12 /* Illegal argument. */
#define ERR_USE -13 /* Address in use. */
#define ERR_IF -14 /* Low-level netif error */
#define ERR_ISCONN -15 /* Already connected. */
#ifdef LWIP_DEBUG
extern const char *lwip_strerr(err_t err)ICACHE_FLASH_ATTR;
#else
#define lwip_strerr(x) ""
#endif /* LWIP_DEBUG */
#ifdef __cplusplus
}
#endif
#endif /* __LWIP_ERR_H__ */

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/*
* Copyright (c) 2001-2004 Swedish Institute of Computer Science.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGE.
*
* This file is part of the lwIP TCP/IP stack.
*
* Author: Adam Dunkels <adam@sics.se>
*
*/
#ifndef __LWIP_ICMP_H__
#define __LWIP_ICMP_H__
#include "lwip/opt.h"
#include "lwip/pbuf.h"
#include "lwip/ip_addr.h"
#include "lwip/netif.h"
#ifdef __cplusplus
extern "C" {
#endif
#define ICMP_ER 0 /* echo reply */
#define ICMP_DUR 3 /* destination unreachable */
#define ICMP_SQ 4 /* source quench */
#define ICMP_RD 5 /* redirect */
#define ICMP_ECHO 8 /* echo */
#define ICMP_TE 11 /* time exceeded */
#define ICMP_PP 12 /* parameter problem */
#define ICMP_TS 13 /* timestamp */
#define ICMP_TSR 14 /* timestamp reply */
#define ICMP_IRQ 15 /* information request */
#define ICMP_IR 16 /* information reply */
enum icmp_dur_type {
ICMP_DUR_NET = 0, /* net unreachable */
ICMP_DUR_HOST = 1, /* host unreachable */
ICMP_DUR_PROTO = 2, /* protocol unreachable */
ICMP_DUR_PORT = 3, /* port unreachable */
ICMP_DUR_FRAG = 4, /* fragmentation needed and DF set */
ICMP_DUR_SR = 5 /* source route failed */
};
enum icmp_te_type {
ICMP_TE_TTL = 0, /* time to live exceeded in transit */
ICMP_TE_FRAG = 1 /* fragment reassembly time exceeded */
};
#ifdef PACK_STRUCT_USE_INCLUDES
# include "arch/bpstruct.h"
#endif
/** This is the standard ICMP header only that the u32_t data
* is splitted to two u16_t like ICMP echo needs it.
* This header is also used for other ICMP types that do not
* use the data part.
* 定义ICMP回送请求报文首部结构，
* 由于所有ICMP报文首部有很大相似性，
* 该结构同样适用于其它ICMP报文。
*/
PACK_STRUCT_BEGIN
struct icmp_echo_hdr {
PACK_STRUCT_FIELD(u8_t type);
PACK_STRUCT_FIELD(u8_t code);
PACK_STRUCT_FIELD(u16_t chksum);
PACK_STRUCT_FIELD(u16_t id);
PACK_STRUCT_FIELD(u16_t seqno);
} PACK_STRUCT_STRUCT;
PACK_STRUCT_END
#ifdef PACK_STRUCT_USE_INCLUDES
# include "arch/epstruct.h"
#endif
//读取ICMP首部中字段
#define ICMPH_TYPE(hdr) ((hdr)->type)
#define ICMPH_CODE(hdr) ((hdr)->code)
/** Combines type and code to an u16_t 向ICMP报文首部字段中写入相应值*/
#define ICMPH_TYPE_SET(hdr, t) ((hdr)->type = (t))
#define ICMPH_CODE_SET(hdr, c) ((hdr)->code = (c))
#if LWIP_ICMP /* don't build if not configured for use in lwipopts.h */
void icmp_input(struct pbuf *p, struct netif *inp)ICACHE_FLASH_ATTR;
void icmp_dest_unreach(struct pbuf *p, enum icmp_dur_type t)ICACHE_FLASH_ATTR;
void icmp_time_exceeded(struct pbuf *p, enum icmp_te_type t)ICACHE_FLASH_ATTR;
#endif /* LWIP_ICMP */
#ifdef __cplusplus
}
#endif
#endif /* __LWIP_ICMP_H__ */

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/*
* Copyright (c) 2002 CITEL Technologies Ltd.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. Neither the name of CITEL Technologies Ltd nor the names of its contributors
* may be used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY CITEL TECHNOLOGIES AND CONTRIBUTORS ``AS IS''
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL CITEL TECHNOLOGIES OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* This file is a contribution to the lwIP TCP/IP stack.
* The Swedish Institute of Computer Science and Adam Dunkels
* are specifically granted permission to redistribute this
* source code.
*/
#ifndef __LWIP_IGMP_H__
#define __LWIP_IGMP_H__
#include "lwip/opt.h"
#include "lwip/ip_addr.h"
#include "lwip/netif.h"
#include "lwip/pbuf.h"
#if LWIP_IGMP /* don't build if not configured for use in lwipopts.h */
#ifdef __cplusplus
extern "C" {
#endif
/* IGMP timer */
#define IGMP_TMR_INTERVAL 100 /* Milliseconds */
#define IGMP_V1_DELAYING_MEMBER_TMR (1000/IGMP_TMR_INTERVAL)
#define IGMP_JOIN_DELAYING_MEMBER_TMR (500 /IGMP_TMR_INTERVAL)
/* MAC Filter Actions, these are passed to a netif's
* igmp_mac_filter callback function. */
#define IGMP_DEL_MAC_FILTER 0
#define IGMP_ADD_MAC_FILTER 1
/**
* igmp group structure - there is
* a list of groups for each interface
* these should really be linked from the interface, but
* if we keep them separate we will not affect the lwip original code
* too much
*
* There will be a group for the all systems group address but this
* will not run the state machine as it is used to kick off reports
* from all the other groups
*/
struct igmp_group {
/** next link */
struct igmp_group *next;
/** interface on which the group is active */
struct netif *netif;
/** multicast address */
ip_addr_t group_address;
/** signifies we were the last person to report */
u8_t last_reporter_flag;
/** current state of the group */
u8_t group_state;
/** timer for reporting, negative is OFF */
u16_t timer;
/** counter of simultaneous uses */
u8_t use;
};
/* Prototypes */
void igmp_init(void)ICACHE_FLASH_ATTR;
err_t igmp_start(struct netif *netif)ICACHE_FLASH_ATTR;
err_t igmp_stop(struct netif *netif)ICACHE_FLASH_ATTR;
void igmp_report_groups(struct netif *netif)ICACHE_FLASH_ATTR;
struct igmp_group *igmp_lookfor_group(struct netif *ifp, ip_addr_t *addr)ICACHE_FLASH_ATTR;
void igmp_input(struct pbuf *p, struct netif *inp, ip_addr_t *dest)ICACHE_FLASH_ATTR;
err_t igmp_joingroup(ip_addr_t *ifaddr, ip_addr_t *groupaddr)ICACHE_FLASH_ATTR;
err_t igmp_leavegroup(ip_addr_t *ifaddr, ip_addr_t *groupaddr)ICACHE_FLASH_ATTR;
void igmp_tmr(void)ICACHE_FLASH_ATTR;
#define LWIP_RAND() rand()
#ifdef __cplusplus
}
#endif
#endif /* LWIP_IGMP */
#endif /* __LWIP_IGMP_H__ */

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/*
* Copyright (c) 2001-2004 Swedish Institute of Computer Science.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGE.
*
* This file is part of the lwIP TCP/IP stack.
*
* Author: Adam Dunkels <adam@sics.se>
*
*/
#ifndef __LWIP_INET_H__
#define __LWIP_INET_H__
#include "lwip/opt.h"
#include "lwip/def.h"
#include "lwip/ip_addr.h"
#ifdef __cplusplus
extern "C" {
#endif
/** For compatibility with BSD code */
struct in_addr {
u32_t s_addr;
};
/** 255.255.255.255 */
#define INADDR_NONE IPADDR_NONE
/** 127.0.0.1 */
#define INADDR_LOOPBACK IPADDR_LOOPBACK
/** 0.0.0.0 */
#define INADDR_ANY IPADDR_ANY
/** 255.255.255.255 */
#define INADDR_BROADCAST IPADDR_BROADCAST
/* Definitions of the bits in an Internet address integer.
On subnets, host and network parts are found according to
the subnet mask, not these masks. */
#define IN_CLASSA(a) IP_CLASSA(a)
#define IN_CLASSA_NET IP_CLASSA_NET
#define IN_CLASSA_NSHIFT IP_CLASSA_NSHIFT
#define IN_CLASSA_HOST IP_CLASSA_HOST
#define IN_CLASSA_MAX IP_CLASSA_MAX
#define IN_CLASSB(b) IP_CLASSB(b)
#define IN_CLASSB_NET IP_CLASSB_NET
#define IN_CLASSB_NSHIFT IP_CLASSB_NSHIFT
#define IN_CLASSB_HOST IP_CLASSB_HOST
#define IN_CLASSB_MAX IP_CLASSB_MAX
#define IN_CLASSC(c) IP_CLASSC(c)
#define IN_CLASSC_NET IP_CLASSC_NET
#define IN_CLASSC_NSHIFT IP_CLASSC_NSHIFT
#define IN_CLASSC_HOST IP_CLASSC_HOST
#define IN_CLASSC_MAX IP_CLASSC_MAX
#define IN_CLASSD(d) IP_CLASSD(d)
#define IN_CLASSD_NET IP_CLASSD_NET /* These ones aren't really */
#define IN_CLASSD_NSHIFT IP_CLASSD_NSHIFT /* net and host fields, but */
#define IN_CLASSD_HOST IP_CLASSD_HOST /* routing needn't know. */
#define IN_CLASSD_MAX IP_CLASSD_MAX
#define IN_MULTICAST(a) IP_MULTICAST(a)
#define IN_EXPERIMENTAL(a) IP_EXPERIMENTAL(a)
#define IN_BADCLASS(a) IP_BADCLASS(a)
#define IN_LOOPBACKNET IP_LOOPBACKNET
#define inet_addr_from_ipaddr(target_inaddr, source_ipaddr) ((target_inaddr)->s_addr = ip4_addr_get_u32(source_ipaddr))
#define inet_addr_to_ipaddr(target_ipaddr, source_inaddr) (ip4_addr_set_u32(target_ipaddr, (source_inaddr)->s_addr))
/* ATTENTION: the next define only works because both s_addr and ip_addr_t are an u32_t effectively! */
#define inet_addr_to_ipaddr_p(target_ipaddr_p, source_inaddr) ((target_ipaddr_p) = (ip_addr_t*)&((source_inaddr)->s_addr))
/* directly map this to the lwip internal functions */
#define inet_addr(cp) ipaddr_addr(cp)
#define inet_aton(cp, addr) ipaddr_aton(cp, (ip_addr_t*)addr)
#define inet_ntoa(addr) ipaddr_ntoa((ip_addr_t*)&(addr))
#define inet_ntoa_r(addr, buf, buflen) ipaddr_ntoa_r((ip_addr_t*)&(addr), buf, buflen)
#ifdef __cplusplus
}
#endif
#endif /* __LWIP_INET_H__ */

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/*
* Copyright (c) 2001-2004 Swedish Institute of Computer Science.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGE.
*
* This file is part of the lwIP TCP/IP stack.
*
* Author: Adam Dunkels <adam@sics.se>
*
*/
#ifndef __LWIP_INET_CHKSUM_H__
#define __LWIP_INET_CHKSUM_H__
#include "lwip/opt.h"
#include "lwip/pbuf.h"
#include "lwip/ip_addr.h"
/** Swap the bytes in an u16_t: much like htons() for little-endian */
#ifndef SWAP_BYTES_IN_WORD
#if LWIP_PLATFORM_BYTESWAP && (BYTE_ORDER == LITTLE_ENDIAN)
/* little endian and PLATFORM_BYTESWAP defined */
#define SWAP_BYTES_IN_WORD(w) LWIP_PLATFORM_HTONS(w)
#else /* LWIP_PLATFORM_BYTESWAP && (BYTE_ORDER == LITTLE_ENDIAN) */
/* can't use htons on big endian (or PLATFORM_BYTESWAP not defined)... */
#define SWAP_BYTES_IN_WORD(w) (((w) & 0xff) << 8) | (((w) & 0xff00) >> 8)
#endif /* LWIP_PLATFORM_BYTESWAP && (BYTE_ORDER == LITTLE_ENDIAN)*/
#endif /* SWAP_BYTES_IN_WORD */
/** Split an u32_t in two u16_ts and add them up */
#ifndef FOLD_U32T
#define FOLD_U32T(u) (((u) >> 16) + ((u) & 0x0000ffffUL))
#endif
#if LWIP_CHECKSUM_ON_COPY
/** Function-like macro: same as MEMCPY but returns the checksum of copied data
as u16_t */
#ifndef LWIP_CHKSUM_COPY
#define LWIP_CHKSUM_COPY(dst, src, len) lwip_chksum_copy(dst, src, len)
#ifndef LWIP_CHKSUM_COPY_ALGORITHM
#define LWIP_CHKSUM_COPY_ALGORITHM 1
#endif /* LWIP_CHKSUM_COPY_ALGORITHM */
#endif /* LWIP_CHKSUM_COPY */
#else /* LWIP_CHECKSUM_ON_COPY */
#define LWIP_CHKSUM_COPY_ALGORITHM 0
#endif /* LWIP_CHECKSUM_ON_COPY */
#ifdef __cplusplus
extern "C" {
#endif
u16_t inet_chksum(void *dataptr, u16_t len)ICACHE_FLASH_ATTR;
u16_t inet_chksum_pbuf(struct pbuf *p)ICACHE_FLASH_ATTR;
u16_t inet_chksum_pseudo(struct pbuf *p,
ip_addr_t *src, ip_addr_t *dest,
u8_t proto, u16_t proto_len)ICACHE_FLASH_ATTR;
u16_t inet_chksum_pseudo_partial(struct pbuf *p,
ip_addr_t *src, ip_addr_t *dest,
u8_t proto, u16_t proto_len, u16_t chksum_len)ICACHE_FLASH_ATTR;
#if LWIP_CHKSUM_COPY_ALGORITHM
u16_t lwip_chksum_copy(void *dst, const void *src, u16_t len)ICACHE_FLASH_ATTR;
#endif /* LWIP_CHKSUM_COPY_ALGORITHM */
#ifdef __cplusplus
}
#endif
#endif /* __LWIP_INET_H__ */

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/*
* Copyright (c) 2001-2004 Swedish Institute of Computer Science.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGE.
*
* This file is part of the lwIP TCP/IP stack.
*
* Author: Adam Dunkels <adam@sics.se>
*
*/
#ifndef __LWIP_INIT_H__
#define __LWIP_INIT_H__
#include "lwip/opt.h"
#ifdef __cplusplus
extern "C" {
#endif
/** X.x.x: Major version of the stack */
#define LWIP_VERSION_MAJOR 1U
/** x.X.x: Minor version of the stack */
#define LWIP_VERSION_MINOR 4U
/** x.x.X: Revision of the stack */
#define LWIP_VERSION_REVISION 0U
/** For release candidates, this is set to 1..254
* For official releases, this is set to 255 (LWIP_RC_RELEASE)
* For development versions (CVS), this is set to 0 (LWIP_RC_DEVELOPMENT) */
#define LWIP_VERSION_RC 2U
/** LWIP_VERSION_RC is set to LWIP_RC_RELEASE for official releases */
#define LWIP_RC_RELEASE 255U
/** LWIP_VERSION_RC is set to LWIP_RC_DEVELOPMENT for CVS versions */
#define LWIP_RC_DEVELOPMENT 0U
#define LWIP_VERSION_IS_RELEASE (LWIP_VERSION_RC == LWIP_RC_RELEASE)
#define LWIP_VERSION_IS_DEVELOPMENT (LWIP_VERSION_RC == LWIP_RC_DEVELOPMENT)
#define LWIP_VERSION_IS_RC ((LWIP_VERSION_RC != LWIP_RC_RELEASE) && (LWIP_VERSION_RC != LWIP_RC_DEVELOPMENT))
/** Provides the version of the stack */
#define LWIP_VERSION (LWIP_VERSION_MAJOR << 24 | LWIP_VERSION_MINOR << 16 | \
LWIP_VERSION_REVISION << 8 | LWIP_VERSION_RC)
/* Modules initialization */
void lwip_init(void) ICACHE_FLASH_ATTR;
//void lwip_init(void);
#ifdef __cplusplus
}
#endif
#endif /* __LWIP_INIT_H__ */

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/*
* Copyright (c) 2001-2004 Swedish Institute of Computer Science.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGE.
*
* This file is part of the lwIP TCP/IP stack.
*
* Author: Adam Dunkels <adam@sics.se>
*
*/
#ifndef __LWIP_IP_H__
#define __LWIP_IP_H__
#include "lwip/opt.h"
#include "lwip/def.h"
#include "lwip/pbuf.h"
#include "lwip/ip_addr.h"
#include "lwip/err.h"
#include "lwip/netif.h"
#ifdef __cplusplus
extern "C" {
#endif
/** Currently, the function ip_output_if_opt() is only used with IGMP */
#define IP_OPTIONS_SEND LWIP_IGMP
#define IP_HLEN 20
#define IP_PROTO_ICMP 1
#define IP_PROTO_IGMP 2
#define IP_PROTO_UDP 17
#define IP_PROTO_UDPLITE 136
#define IP_PROTO_TCP 6
/* This is passed as the destination address to ip_output_if (not
to ip_output), meaning that an IP header already is constructed
in the pbuf. This is used when TCP retransmits. */
#ifdef IP_HDRINCL
#undef IP_HDRINCL
#endif /* IP_HDRINCL */
#define IP_HDRINCL NULL
#if LWIP_NETIF_HWADDRHINT
#define IP_PCB_ADDRHINT ;u8_t addr_hint
#else
#define IP_PCB_ADDRHINT
#endif /* LWIP_NETIF_HWADDRHINT */
/* This is the common part of all PCB types. It needs to be at the
beginning of a PCB type definition. It is located here so that
changes to this common part are made in one location instead of
having to change all PCB structs. */
#define IP_PCB \
/* ip addresses in network byte order */ \
ip_addr_t local_ip; \
ip_addr_t remote_ip; \
/* Socket options */ \
u8_t so_options; \
/* Type Of Service */ \
u8_t tos; \
/* Time To Live */ \
u8_t ttl \
/* link layer address resolution hint */ \
IP_PCB_ADDRHINT
struct ip_pcb {
/* Common members of all PCB types */
IP_PCB;
};
/*
* Option flags per-socket. These are the same like SO_XXX.
*/
/*#define SOF_DEBUG (u8_t)0x01U Unimplemented: turn on debugging info recording */
#define SOF_ACCEPTCONN (u8_t)0x02U /* socket has had listen() */
#define SOF_REUSEADDR (u8_t)0x04U /* allow local address reuse */
#define SOF_KEEPALIVE (u8_t)0x08U /* keep connections alive */
/*#define SOF_DONTROUTE (u8_t)0x10U Unimplemented: just use interface addresses */
#define SOF_BROADCAST (u8_t)0x20U /* permit to send and to receive broadcast messages (see IP_SOF_BROADCAST option) */
/*#define SOF_USELOOPBACK (u8_t)0x40U Unimplemented: bypass hardware when possible */
#define SOF_LINGER (u8_t)0x80U /* linger on close if data present */
/*#define SOF_OOBINLINE (u16_t)0x0100U Unimplemented: leave received OOB data in line */
/*#define SOF_REUSEPORT (u16_t)0x0200U Unimplemented: allow local address & port reuse */
/* These flags are inherited (e.g. from a listen-pcb to a connection-pcb): */
#define SOF_INHERITED (SOF_REUSEADDR|SOF_KEEPALIVE|SOF_LINGER/*|SOF_DEBUG|SOF_DONTROUTE|SOF_OOBINLINE*/)
#ifdef PACK_STRUCT_USE_INCLUDES
# include "arch/bpstruct.h"
#endif
PACK_STRUCT_BEGIN
struct ip_hdr {
/* version / header length / type of service */
PACK_STRUCT_FIELD(u16_t _v_hl_tos);
/* total length */
PACK_STRUCT_FIELD(u16_t _len);
/* identification */
PACK_STRUCT_FIELD(u16_t _id);
/* fragment offset field */
PACK_STRUCT_FIELD(u16_t _offset);
#define IP_RF 0x8000 /* reserved fragment flag */
#define IP_DF 0x4000 /* dont fragment flag */
#define IP_MF 0x2000 /* more fragments flag */
#define IP_OFFMASK 0x1fff /* mask for fragmenting bits */
/* time to live */
PACK_STRUCT_FIELD(u8_t _ttl);
/* protocol*/
PACK_STRUCT_FIELD(u8_t _proto);
/* checksum */
PACK_STRUCT_FIELD(u16_t _chksum);
/* source and destination IP addresses */
PACK_STRUCT_FIELD(ip_addr_p_t src);
PACK_STRUCT_FIELD(ip_addr_p_t dest);
} PACK_STRUCT_STRUCT;
PACK_STRUCT_END
#ifdef PACK_STRUCT_USE_INCLUDES
# include "arch/epstruct.h"
#endif
#define IPH_V(hdr) (ntohs((hdr)->_v_hl_tos) >> 12)
#define IPH_HL(hdr) ((ntohs((hdr)->_v_hl_tos) >> 8) & 0x0f)
#define IPH_TOS(hdr) (ntohs((hdr)->_v_hl_tos) & 0xff)
#define IPH_LEN(hdr) ((hdr)->_len)
#define IPH_ID(hdr) ((hdr)->_id)
#define IPH_OFFSET(hdr) ((hdr)->_offset)
#define IPH_TTL(hdr) ((hdr)->_ttl)
#define IPH_PROTO(hdr) ((hdr)->_proto)
#define IPH_CHKSUM(hdr) ((hdr)->_chksum)
#define IPH_VHLTOS_SET(hdr, v, hl, tos) (hdr)->_v_hl_tos = (htons(((v) << 12) | ((hl) << 8) | (tos)))
#define IPH_LEN_SET(hdr, len) (hdr)->_len = (len)
#define IPH_ID_SET(hdr, id) (hdr)->_id = (id)
#define IPH_OFFSET_SET(hdr, off) (hdr)->_offset = (off)
#define IPH_TTL_SET(hdr, ttl) (hdr)->_ttl = (u8_t)(ttl)
#define IPH_PROTO_SET(hdr, proto) (hdr)->_proto = (u8_t)(proto)
#define IPH_CHKSUM_SET(hdr, chksum) (hdr)->_chksum = (chksum)
/** The interface that provided the packet for the current callback invocation. */
extern struct netif *current_netif;
/** Header of the input packet currently being processed. */
extern const struct ip_hdr *current_header;
/** Source IP address of current_header */
extern ip_addr_t current_iphdr_src;
/** Destination IP address of current_header */
extern ip_addr_t current_iphdr_dest;
#define ip_init() /* Compatibility define, not init needed. */
struct netif *ip_route(ip_addr_t *dest)ICACHE_FLASH_ATTR;
struct netif *ip_router(ip_addr_t *dest, ip_addr_t *source);
err_t ip_input(struct pbuf *p, struct netif *inp)ICACHE_FLASH_ATTR;
err_t ip_output(struct pbuf *p, ip_addr_t *src, ip_addr_t *dest,
u8_t ttl, u8_t tos, u8_t proto)ICACHE_FLASH_ATTR;
err_t ip_output_if(struct pbuf *p, ip_addr_t *src, ip_addr_t *dest,
u8_t ttl, u8_t tos, u8_t proto,
struct netif *netif)ICACHE_FLASH_ATTR;
#if LWIP_NETIF_HWADDRHINT
err_t ip_output_hinted(struct pbuf *p, ip_addr_t *src, ip_addr_t *dest,
u8_t ttl, u8_t tos, u8_t proto, u8_t *addr_hint)ICACHE_FLASH_ATTR;
#endif /* LWIP_NETIF_HWADDRHINT */
#if IP_OPTIONS_SEND
err_t ip_output_if_opt(struct pbuf *p, ip_addr_t *src, ip_addr_t *dest,
u8_t ttl, u8_t tos, u8_t proto, struct netif *netif, void *ip_options,
u16_t optlen)ICACHE_FLASH_ATTR;
#endif /* IP_OPTIONS_SEND */
/** Get the interface that received the current packet.
* This function must only be called from a receive callback (udp_recv,
* raw_recv, tcp_accept). It will return NULL otherwise. */
#define ip_current_netif() (current_netif)
/** Get the IP header of the current packet.
* This function must only be called from a receive callback (udp_recv,
* raw_recv, tcp_accept). It will return NULL otherwise. */
#define ip_current_header() (current_header)
/** Source IP address of current_header */
#define ip_current_src_addr() (&current_iphdr_src)
/** Destination IP address of current_header */
#define ip_current_dest_addr() (&current_iphdr_dest)
#if IP_DEBUG
void ip_debug_print(struct pbuf *p)ICACHE_FLASH_ATTR;
#else
#define ip_debug_print(p)
#endif /* IP_DEBUG */
#ifdef __cplusplus
}
#endif
#endif /* __LWIP_IP_H__ */

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/*
* Copyright (c) 2001-2004 Swedish Institute of Computer Science.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGE.
*
* This file is part of the lwIP TCP/IP stack.
*
* Author: Adam Dunkels <adam@sics.se>
*
*/
#ifndef __LWIP_IP_ADDR_H__
#define __LWIP_IP_ADDR_H__
#include "lwip/opt.h"
#include "lwip/def.h"
#ifdef __cplusplus
extern "C" {
#endif
/* This is the aligned version of ip_addr_t,
used as local variable, on the stack, etc. */
struct ip_addr {
u32_t addr;
};
/* This is the packed version of ip_addr_t,
used in network headers that are itself packed */
#ifdef PACK_STRUCT_USE_INCLUDES
# include "arch/bpstruct.h"
#endif
PACK_STRUCT_BEGIN
struct ip_addr_packed {
PACK_STRUCT_FIELD(u32_t addr);
} PACK_STRUCT_STRUCT;
PACK_STRUCT_END
#ifdef PACK_STRUCT_USE_INCLUDES
# include "arch/epstruct.h"
#endif
/** ip_addr_t uses a struct for convenience only, so that the same defines can
* operate both on ip_addr_t as well as on ip_addr_p_t. */
typedef struct ip_addr ip_addr_t;
typedef struct ip_addr_packed ip_addr_p_t;
/*
* struct ipaddr2 is used in the definition of the ARP packet format in
* order to support compilers that don't have structure packing.
*/
#ifdef PACK_STRUCT_USE_INCLUDES
# include "arch/bpstruct.h"
#endif
PACK_STRUCT_BEGIN
struct ip_addr2 {
PACK_STRUCT_FIELD(u16_t addrw[2]);
} PACK_STRUCT_STRUCT;
PACK_STRUCT_END
#ifdef PACK_STRUCT_USE_INCLUDES
# include "arch/epstruct.h"
#endif
/* Forward declaration to not include netif.h */
struct netif;
extern const ip_addr_t ip_addr_any;
extern const ip_addr_t ip_addr_broadcast;
/** IP_ADDR_ can be used as a fixed IP address
* for the wildcard and the broadcast address
*/
#define IP_ADDR_ANY ((ip_addr_t *)&ip_addr_any)
#define IP_ADDR_BROADCAST ((ip_addr_t *)&ip_addr_broadcast)
/** 255.255.255.255 */
#define IPADDR_NONE ((u32_t)0xffffffffUL)
/** 127.0.0.1 */
#define IPADDR_LOOPBACK ((u32_t)0x7f000001UL)
/** 0.0.0.0 */
#define IPADDR_ANY ((u32_t)0x00000000UL)
/** 255.255.255.255 */
#define IPADDR_BROADCAST ((u32_t)0xffffffffUL)
/* Definitions of the bits in an Internet address integer.
On subnets, host and network parts are found according to
the subnet mask, not these masks. */
#define IP_CLASSA(a) ((((u32_t)(a)) & 0x80000000UL) == 0)
#define IP_CLASSA_NET 0xff000000
#define IP_CLASSA_NSHIFT 24
#define IP_CLASSA_HOST (0xffffffff & ~IP_CLASSA_NET)
#define IP_CLASSA_MAX 128
#define IP_CLASSB(a) ((((u32_t)(a)) & 0xc0000000UL) == 0x80000000UL)
#define IP_CLASSB_NET 0xffff0000
#define IP_CLASSB_NSHIFT 16
#define IP_CLASSB_HOST (0xffffffff & ~IP_CLASSB_NET)
#define IP_CLASSB_MAX 65536
#define IP_CLASSC(a) ((((u32_t)(a)) & 0xe0000000UL) == 0xc0000000UL)
#define IP_CLASSC_NET 0xffffff00
#define IP_CLASSC_NSHIFT 8
#define IP_CLASSC_HOST (0xffffffff & ~IP_CLASSC_NET)
#define IP_CLASSD(a) (((u32_t)(a) & 0xf0000000UL) == 0xe0000000UL)
#define IP_CLASSD_NET 0xf0000000 /* These ones aren't really */
#define IP_CLASSD_NSHIFT 28 /* net and host fields, but */
#define IP_CLASSD_HOST 0x0fffffff /* routing needn't know. */
#define IP_MULTICAST(a) IP_CLASSD(a)
#define IP_EXPERIMENTAL(a) (((u32_t)(a) & 0xf0000000UL) == 0xf0000000UL)
#define IP_BADCLASS(a) (((u32_t)(a) & 0xf0000000UL) == 0xf0000000UL)
#define IP_LOOPBACKNET 127 /* official! */
#if BYTE_ORDER == BIG_ENDIAN
/** Set an IP address given by the four byte-parts */
#define IP4_ADDR(ipaddr, a,b,c,d) \
(ipaddr)->addr = ((u32_t)((a) & 0xff) << 24) | \
((u32_t)((b) & 0xff) << 16) | \
((u32_t)((c) & 0xff) << 8) | \
(u32_t)((d) & 0xff)
#else
/** Set an IP address given by the four byte-parts.
Little-endian version that prevents the use of htonl. */
#define IP4_ADDR(ipaddr, a,b,c,d) \
(ipaddr)->addr = ((u32_t)((d) & 0xff) << 24) | \
((u32_t)((c) & 0xff) << 16) | \
((u32_t)((b) & 0xff) << 8) | \
(u32_t)((a) & 0xff)
#endif
/** MEMCPY-like copying of IP addresses where addresses are known to be
* 16-bit-aligned if the port is correctly configured (so a port could define
* this to copying 2 u16_t's) - no NULL-pointer-checking needed. */
#ifndef IPADDR2_COPY
#define IPADDR2_COPY(dest, src) SMEMCPY(dest, src, sizeof(ip_addr_t))
#endif
/** Copy IP address - faster than ip_addr_set: no NULL check */
#define ip_addr_copy(dest, src) ((dest).addr = (src).addr)
/** Safely copy one IP address to another (src may be NULL) */
#define ip_addr_set(dest, src) ((dest)->addr = \
((src) == NULL ? 0 : \
(src)->addr))
/** Set complete address to zero */
#define ip_addr_set_zero(ipaddr) ((ipaddr)->addr = 0)
/** Set address to IPADDR_ANY (no need for htonl()) */
#define ip_addr_set_any(ipaddr) ((ipaddr)->addr = IPADDR_ANY)
/** Set address to loopback address */
#define ip_addr_set_loopback(ipaddr) ((ipaddr)->addr = PP_HTONL(IPADDR_LOOPBACK))
/** Safely copy one IP address to another and change byte order
* from host- to network-order. */
#define ip_addr_set_hton(dest, src) ((dest)->addr = \
((src) == NULL ? 0:\
htonl((src)->addr)))
/** IPv4 only: set the IP address given as an u32_t */
#define ip4_addr_set_u32(dest_ipaddr, src_u32) ((dest_ipaddr)->addr = (src_u32))
/** IPv4 only: get the IP address as an u32_t */
#define ip4_addr_get_u32(src_ipaddr) ((src_ipaddr)->addr)
/** Get the network address by combining host address with netmask */
#define ip_addr_get_network(target, host, netmask) ((target)->addr = ((host)->addr) & ((netmask)->addr))
/**
* Determine if two address are on the same network.
*
* @arg addr1 IP address 1
* @arg addr2 IP address 2
* @arg mask network identifier mask
* @return !0 if the network identifiers of both address match
*/
#define ip_addr_netcmp(addr1, addr2, mask) (((addr1)->addr & \
(mask)->addr) == \
((addr2)->addr & \
(mask)->addr))
#define ip_addr_cmp(addr1, addr2) ((addr1)->addr == (addr2)->addr)
#define ip_addr_isany(addr1) ((addr1) == NULL || (addr1)->addr == IPADDR_ANY)
#define ip_addr_isbroadcast(ipaddr, netif) ip4_addr_isbroadcast((ipaddr)->addr, (netif))
u8_t ip4_addr_isbroadcast(u32_t addr, const struct netif *netif)ICACHE_FLASH_ATTR;
#define ip_addr_netmask_valid(netmask) ip4_addr_netmask_valid((netmask)->addr)
u8_t ip4_addr_netmask_valid(u32_t netmask)ICACHE_FLASH_ATTR;
#define ip_addr_ismulticast(addr1) (((addr1)->addr & PP_HTONL(0xf0000000UL)) == PP_HTONL(0xe0000000UL))
#define ip_addr_islinklocal(addr1) (((addr1)->addr & PP_HTONL(0xffff0000UL)) == PP_HTONL(0xa9fe0000UL))
#define ip_addr_debug_print(debug, ipaddr) \
LWIP_DEBUGF(debug, ("%" U16_F ".%" U16_F ".%" U16_F ".%" U16_F, \
ipaddr != NULL ? ip4_addr1_16(ipaddr) : 0, \
ipaddr != NULL ? ip4_addr2_16(ipaddr) : 0, \
ipaddr != NULL ? ip4_addr3_16(ipaddr) : 0, \
ipaddr != NULL ? ip4_addr4_16(ipaddr) : 0))
/* Get one byte from the 4-byte address */
#define ip4_addr1(ipaddr) (((u8_t*)(ipaddr))[0])
#define ip4_addr2(ipaddr) (((u8_t*)(ipaddr))[1])
#define ip4_addr3(ipaddr) (((u8_t*)(ipaddr))[2])
#define ip4_addr4(ipaddr) (((u8_t*)(ipaddr))[3])
/* These are cast to u16_t, with the intent that they are often arguments
* to printf using the U16_F format from cc.h. */
#define ip4_addr1_16(ipaddr) ((u16_t)ip4_addr1(ipaddr))
#define ip4_addr2_16(ipaddr) ((u16_t)ip4_addr2(ipaddr))
#define ip4_addr3_16(ipaddr) ((u16_t)ip4_addr3(ipaddr))
#define ip4_addr4_16(ipaddr) ((u16_t)ip4_addr4(ipaddr))
/** For backwards compatibility */
#define ip_ntoa(ipaddr) ipaddr_ntoa(ipaddr)
u32_t ipaddr_addr(const char *cp)ICACHE_FLASH_ATTR;
int ipaddr_aton(const char *cp, ip_addr_t *addr)ICACHE_FLASH_ATTR;
/** returns ptr to static buffer; not reentrant! */
char *ipaddr_ntoa(const ip_addr_t *addr)ICACHE_FLASH_ATTR;
char *ipaddr_ntoa_r(const ip_addr_t *addr, char *buf, int buflen)ICACHE_FLASH_ATTR;
#define IP2STR(ipaddr) ip4_addr1_16(ipaddr), \
ip4_addr2_16(ipaddr), \
ip4_addr3_16(ipaddr), \
ip4_addr4_16(ipaddr)
#define IPSTR "%d.%d.%d.%d"
struct ip_info {
struct ip_addr ip;
struct ip_addr netmask;
struct ip_addr gw;
};
#ifdef __cplusplus
}
#endif
#endif /* __LWIP_IP_ADDR_H__ */

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/*
* Copyright (c) 2001-2004 Swedish Institute of Computer Science.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGE.
*
* This file is part of the lwIP TCP/IP stack.
*
* Author: Jani Monoses <jani@iv.ro>
*
*/
#ifndef __LWIP_IP_FRAG_H__
#define __LWIP_IP_FRAG_H__
#include "lwip/opt.h"
#include "lwip/err.h"
#include "lwip/pbuf.h"
#include "lwip/netif.h"
#include "lwip/ip_addr.h"
#include "lwip/ip.h"
#ifdef __cplusplus
extern "C" {
#endif
#if IP_REASSEMBLY
/* The IP reassembly timer interval in milliseconds. */
#define IP_TMR_INTERVAL 1000
/* IP reassembly helper struct.
* This is exported because memp needs to know the size.
*/
struct ip_reassdata {
struct ip_reassdata *next;
struct pbuf *p;
struct ip_hdr iphdr;
u16_t datagram_len;
u8_t flags;
u8_t timer;
};
void ip_reass_init(void)ICACHE_FLASH_ATTR;
void ip_reass_tmr(void)ICACHE_FLASH_ATTR;
struct pbuf * ip_reass(struct pbuf *p)ICACHE_FLASH_ATTR;
#endif /* IP_REASSEMBLY */
#if IP_FRAG
#if !IP_FRAG_USES_STATIC_BUF && !LWIP_NETIF_TX_SINGLE_PBUF
/** A custom pbuf that holds a reference to another pbuf, which is freed
* when this custom pbuf is freed. This is used to create a custom PBUF_REF
* that points into the original pbuf. */
struct pbuf_custom_ref {
/** 'base class' */
struct pbuf_custom pc;
/** pointer to the original pbuf that is referenced */
struct pbuf *original;
};
#endif /* !IP_FRAG_USES_STATIC_BUF && !LWIP_NETIF_TX_SINGLE_PBUF */
err_t ip_frag(struct pbuf *p, struct netif *netif, ip_addr_t *dest)ICACHE_FLASH_ATTR;
#endif /* IP_FRAG */
#ifdef __cplusplus
}
#endif
#endif /* __LWIP_IP_FRAG_H__ */

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/*
* Copyright (c) 2001-2004 Swedish Institute of Computer Science.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGE.
*
* This file is part of the lwIP TCP/IP stack.
*
* Author: Adam Dunkels <adam@sics.se>
*
*/
#ifndef __LWIP_MEM_H__
#define __LWIP_MEM_H__
#include "lwip/opt.h"
#include "mem_manager.h"
#ifdef __cplusplus
extern "C" {
#endif
#if MEM_LIBC_MALLOC
#include <stddef.h> /* for size_t */
typedef size_t mem_size_t;
/* aliases for C library malloc() */
#define mem_init()
/* in case C library malloc() needs extra protection,
* allow these defines to be overridden.
*/
#ifndef mem_free
#define mem_free vPortFree
#endif
#ifndef mem_malloc
#define mem_malloc pvPortMalloc
#endif
#ifndef mem_calloc
#define mem_calloc pvPortCalloc
#endif
#ifndef mem_realloc
#define mem_realloc pvPortRealloc
#endif
#ifndef mem_zalloc
#define mem_zalloc pvPortZalloc
#endif
#ifndef os_malloc
#define os_malloc(s) mem_malloc((s))
#endif
#ifndef os_realloc
#define os_realloc(p, s) mem_realloc((p), (s))
#endif
#ifndef os_zalloc
#define os_zalloc(s) mem_zalloc((s))
#endif
#ifndef os_free
#define os_free(p) mem_free((p))
#endif
/* Since there is no C library allocation function to shrink memory without
moving it, define this to nothing. */
#ifndef mem_trim
#define mem_trim(mem, size) (mem)
#endif
#else /* MEM_LIBC_MALLOC */
/* MEM_SIZE would have to be aligned, but using 64000 here instead of
* 65535 leaves some room for alignment...
*/
#if MEM_SIZE > 64000l
typedef u32_t mem_size_t;
#define MEM_SIZE_F U32_F
#else
typedef u16_t mem_size_t;
#define MEM_SIZE_F U16_F
#endif /* MEM_SIZE > 64000 */
#if MEM_USE_POOLS
/** mem_init is not used when using pools instead of a heap */
#define mem_init()
/** mem_trim is not used when using pools instead of a heap:
we can't free part of a pool element and don't want to copy the rest */
#define mem_trim(mem, size) (mem)
#else /* MEM_USE_POOLS */
/* lwIP alternative malloc */
void mem_init(void)ICACHE_FLASH_ATTR;
void *mem_trim(void *mem, mem_size_t size)ICACHE_FLASH_ATTR;
#endif /* MEM_USE_POOLS */
void *mem_malloc(mem_size_t size)ICACHE_FLASH_ATTR;
void *mem_calloc(mem_size_t count, mem_size_t size)ICACHE_FLASH_ATTR;
void mem_free(void *mem)ICACHE_FLASH_ATTR;
#endif /* MEM_LIBC_MALLOC */
/** Calculate memory size for an aligned buffer - returns the next highest
* multiple of MEM_ALIGNMENT (e.g. LWIP_MEM_ALIGN_SIZE(3) and
* LWIP_MEM_ALIGN_SIZE(4) will both yield 4 for MEM_ALIGNMENT == 4).
*/
#ifndef LWIP_MEM_ALIGN_SIZE
#define LWIP_MEM_ALIGN_SIZE(size) (((size) + MEM_ALIGNMENT - 1) & ~(MEM_ALIGNMENT-1))
#endif
/** Calculate safe memory size for an aligned buffer when using an unaligned
* type as storage. This includes a safety-margin on (MEM_ALIGNMENT - 1) at the
* start (e.g. if buffer is u8_t[] and actual data will be u32_t*)
*/
#ifndef LWIP_MEM_ALIGN_BUFFER
#define LWIP_MEM_ALIGN_BUFFER(size) (((size) + MEM_ALIGNMENT - 1))
#endif
/** Align a memory pointer to the alignment defined by MEM_ALIGNMENT
* so that ADDR % MEM_ALIGNMENT == 0
*/
#ifndef LWIP_MEM_ALIGN
#define LWIP_MEM_ALIGN(addr) ((void *)(((mem_ptr_t)(addr) + MEM_ALIGNMENT - 1) & ~(mem_ptr_t)(MEM_ALIGNMENT-1)))
#endif
#ifdef __cplusplus
}
#endif
#endif /* __LWIP_MEM_H__ */

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#ifndef __MEM_MANAGER_H__
#define __MEM_MANAGER_H__
#include "c_types.h"
/*------------------------±äÁ¿¶¨Òå------------------------*/
#define MPU_WRAPPERS_INCLUDED_FROM_API_FILE
#ifndef IOT_SIP_MODE
//#define configTOTAL_HEAP_SIZE ( ( size_t ) ( 0x3fffc000 - (uint32)&_heap_start ) )//fix 16000 to 24000 on 14.2.26
#else
#define configTOTAL_HEAP_SIZE ( ( size_t ) ( 8000 ) )
#endif
#define portBYTE_ALIGNMENT 8
#define pdFALSE 0
#define pdTRUE 1
#undef MPU_WRAPPERS_INCLUDED_FROM_API_FILE
#if portBYTE_ALIGNMENT == 8
#define portBYTE_ALIGNMENT_MASK ( 0x0007 )
#endif
#if portBYTE_ALIGNMENT == 4
#define portBYTE_ALIGNMENT_MASK ( 0x0003 )
#endif
#if portBYTE_ALIGNMENT == 2
#define portBYTE_ALIGNMENT_MASK ( 0x0001 )
#endif
#if portBYTE_ALIGNMENT == 1
#define portBYTE_ALIGNMENT_MASK ( 0x0000 )
#endif
#ifndef portBYTE_ALIGNMENT_MASK
#error "Invalid portBYTE_ALIGNMENT definition"
#endif
#define configUSE_MALLOC_FAILED_HOOK 1
#define portPOINTER_SIZE_TYPE unsigned int
#define heapMINIMUM_BLOCK_SIZE ( ( size_t ) ( heapSTRUCT_SIZE * 2 ) )
//#define configADJUSTED_HEAP_SIZE ( configTOTAL_HEAP_SIZE - portBYTE_ALIGNMENT )
//static unsigned char ucHeap[ configTOTAL_HEAP_SIZE ];
static unsigned char *ucHeap;
typedef struct A_BLOCK_LINK
{
struct A_BLOCK_LINK *pxNextFreeBlock; //The next free block in the list.
size_t xBlockSize; //The size of the free block.
} xBlockLink;
static const unsigned short heapSTRUCT_SIZE = ( sizeof( xBlockLink ) + portBYTE_ALIGNMENT - ( sizeof( xBlockLink ) % portBYTE_ALIGNMENT ) );
//static const size_t xTotalHeapSize = ( ( size_t ) configADJUSTED_HEAP_SIZE ) & ( ( size_t ) ~portBYTE_ALIGNMENT_MASK );
static xBlockLink xStart, *pxEnd = NULL;
//static size_t xFreeBytesRemaining = ( ( size_t ) configADJUSTED_HEAP_SIZE ) & ( ( size_t ) ~portBYTE_ALIGNMENT_MASK );
/*------------------------º¯ÊýÉùÃ÷-----------------------------------*/
static void prvInsertBlockIntoFreeList( xBlockLink *pxBlockToInsert ) ;//ICACHE_FLASH_ATTR;
static void prvHeapInit( void ) ;//ICACHE_FLASH_ATTR;
void vApplicationMallocFailedHook( void ) ;//ICACHE_FLASH_ATTR;
void *pvPortMalloc( size_t xWantedSize ) ;//ICACHE_FLASH_ATTR;
void vPortFree( void *pv ) ;//ICACHE_FLASH_ATTR;
size_t xPortGetFreeHeapSize( void ) ;//ICACHE_FLASH_ATTR;
void vPortInitialiseBlocks( void ) ;//ICACHE_FLASH_ATTR;
/*-----------------------------------------------------------*/
#endif

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/*
* Copyright (c) 2001-2004 Swedish Institute of Computer Science.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGE.
*
* This file is part of the lwIP TCP/IP stack.
*
* Author: Adam Dunkels <adam@sics.se>
*
*/
#ifndef __LWIP_MEMP_H__
#define __LWIP_MEMP_H__
#include "lwip/opt.h"
#ifdef __cplusplus
extern "C" {
#endif
/* Create the list of all memory pools managed by memp. MEMP_MAX represents a NULL pool at the end */
typedef enum {
#define LWIP_MEMPOOL(name,num,size,desc, attr) MEMP_##name,
#include "lwip/memp_std.h"
MEMP_MAX
} memp_t;
#if MEM_USE_POOLS
/* Use a helper type to get the start and end of the user "memory pools" for mem_malloc */
typedef enum {
/* Get the first (via:
MEMP_POOL_HELPER_START = ((u8_t) 1*MEMP_POOL_A + 0*MEMP_POOL_B + 0*MEMP_POOL_C + 0)*/
MEMP_POOL_HELPER_FIRST = ((u8_t)
#define LWIP_MEMPOOL(name,num,size,desc)
#define LWIP_MALLOC_MEMPOOL_START 1
#define LWIP_MALLOC_MEMPOOL(num, size) * MEMP_POOL_##size + 0
#define LWIP_MALLOC_MEMPOOL_END
#include "lwip/memp_std.h"
) ,
/* Get the last (via:
MEMP_POOL_HELPER_END = ((u8_t) 0 + MEMP_POOL_A*0 + MEMP_POOL_B*0 + MEMP_POOL_C*1) */
MEMP_POOL_HELPER_LAST = ((u8_t)
#define LWIP_MEMPOOL(name,num,size,desc)
#define LWIP_MALLOC_MEMPOOL_START
#define LWIP_MALLOC_MEMPOOL(num, size) 0 + MEMP_POOL_##size *
#define LWIP_MALLOC_MEMPOOL_END 1
#include "lwip/memp_std.h"
)
} memp_pool_helper_t;
/* The actual start and stop values are here (cast them over)
We use this helper type and these defines so we can avoid using const memp_t values */
#define MEMP_POOL_FIRST ((memp_t) MEMP_POOL_HELPER_FIRST)
#define MEMP_POOL_LAST ((memp_t) MEMP_POOL_HELPER_LAST)
#endif /* MEM_USE_POOLS */
#if MEMP_MEM_MALLOC || MEM_USE_POOLS
extern const u16_t memp_sizes[MEMP_MAX];
#endif /* MEMP_MEM_MALLOC || MEM_USE_POOLS */
#if MEMP_MEM_MALLOC
#include "mem.h"
#define memp_init()
#define memp_malloc(type) mem_malloc(memp_sizes[type])
#define memp_free(type, mem) mem_free(mem)
#else /* MEMP_MEM_MALLOC */
#if MEM_USE_POOLS
/** This structure is used to save the pool one element came from. */
struct memp_malloc_helper
{
memp_t poolnr;
};
#endif /* MEM_USE_POOLS */
void memp_init(void)ICACHE_FLASH_ATTR;
#if MEMP_OVERFLOW_CHECK
void *memp_malloc_fn(memp_t type, const char* file, const int line)ICACHE_FLASH_ATTR;
#define memp_malloc(t) memp_malloc_fn((t), __FILE__, __LINE__)
#else
void *memp_malloc(memp_t type)ICACHE_FLASH_ATTR;
#endif
void memp_free(memp_t type, void *mem)ICACHE_FLASH_ATTR;
#endif /* MEMP_MEM_MALLOC */
#ifdef __cplusplus
}
#endif
#endif /* __LWIP_MEMP_H__ */

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/*
* SETUP: Make sure we define everything we will need.
*
* We have create three types of pools:
* 1) MEMPOOL - standard pools
* 2) MALLOC_MEMPOOL - to be used by mem_malloc in mem.c
* 3) PBUF_MEMPOOL - a mempool of pbuf's, so include space for the pbuf struct
*
* If the include'r doesn't require any special treatment of each of the types
* above, then will declare #2 & #3 to be just standard mempools.
*/
#ifndef LWIP_MALLOC_MEMPOOL
/* This treats "malloc pools" just like any other pool.
The pools are a little bigger to provide 'size' as the amount of user data. */
#define LWIP_MALLOC_MEMPOOL(num, size) LWIP_MEMPOOL(POOL_##size, num, (size + sizeof(struct memp_malloc_helper)), "MALLOC_"#size, attr)
#define LWIP_MALLOC_MEMPOOL_START
#define LWIP_MALLOC_MEMPOOL_END
#endif /* LWIP_MALLOC_MEMPOOL */
#ifndef LWIP_PBUF_MEMPOOL
/* This treats "pbuf pools" just like any other pool.
* Allocates buffers for a pbuf struct AND a payload size */
#define LWIP_PBUF_MEMPOOL(name, num, payload, desc, attr) LWIP_MEMPOOL(name, num, (MEMP_ALIGN_SIZE(sizeof(struct pbuf)) + MEMP_ALIGN_SIZE(payload)), desc, attr)
#endif /* LWIP_PBUF_MEMPOOL */
/*
* A list of internal pools used by LWIP.
*
* LWIP_MEMPOOL(pool_name, number_elements, element_size, pool_description)
* creates a pool name MEMP_pool_name. description is used in stats.c
*/
#if LWIP_RAW
LWIP_MEMPOOL(RAW_PCB, MEMP_NUM_RAW_PCB, sizeof(struct raw_pcb), "RAW_PCB", DMEM_ATTR)
#endif /* LWIP_RAW */
#if LWIP_UDP
LWIP_MEMPOOL(UDP_PCB, MEMP_NUM_UDP_PCB, sizeof(struct udp_pcb), "UDP_PCB", DMEM_ATTR)
#endif /* LWIP_UDP */
#if LWIP_TCP
LWIP_MEMPOOL(TCP_PCB, MEMP_NUM_TCP_PCB, sizeof(struct tcp_pcb), "TCP_PCB", DMEM_ATTR)
LWIP_MEMPOOL(TCP_PCB_LISTEN, MEMP_NUM_TCP_PCB_LISTEN, sizeof(struct tcp_pcb_listen), "TCP_PCB_LISTEN", DMEM_ATTR)
LWIP_MEMPOOL(TCP_SEG, MEMP_NUM_TCP_SEG, sizeof(struct tcp_seg), "TCP_SEG", DMEM_ATTR)
#endif /* LWIP_TCP */
#if IP_REASSEMBLY
LWIP_MEMPOOL(REASSDATA, MEMP_NUM_REASSDATA, sizeof(struct ip_reassdata), "REASSDATA", DMEM_ATTR)
#endif /* IP_REASSEMBLY */
#if IP_FRAG && !IP_FRAG_USES_STATIC_BUF && !LWIP_NETIF_TX_SINGLE_PBUF
LWIP_MEMPOOL(FRAG_PBUF, MEMP_NUM_FRAG_PBUF, sizeof(struct pbuf_custom_ref),"FRAG_PBUF", DMEM_ATTR)
#endif /* IP_FRAG && !IP_FRAG_USES_STATIC_BUF && !LWIP_NETIF_TX_SINGLE_PBUF */
#if LWIP_NETCONN
LWIP_MEMPOOL(NETBUF, MEMP_NUM_NETBUF, sizeof(struct netbuf), "NETBUF")
LWIP_MEMPOOL(NETCONN, MEMP_NUM_NETCONN, sizeof(struct netconn), "NETCONN")
#endif /* LWIP_NETCONN */
#if NO_SYS==0
LWIP_MEMPOOL(TCPIP_MSG_API, MEMP_NUM_TCPIP_MSG_API, sizeof(struct tcpip_msg), "TCPIP_MSG_API")
#if !LWIP_TCPIP_CORE_LOCKING_INPUT
LWIP_MEMPOOL(TCPIP_MSG_INPKT,MEMP_NUM_TCPIP_MSG_INPKT, sizeof(struct tcpip_msg), "TCPIP_MSG_INPKT")
#endif /* !LWIP_TCPIP_CORE_LOCKING_INPUT */
#endif /* NO_SYS==0 */
#if ARP_QUEUEING
LWIP_MEMPOOL(ARP_QUEUE, MEMP_NUM_ARP_QUEUE, sizeof(struct etharp_q_entry), "ARP_QUEUE", DMEM_ATTR)
#endif /* ARP_QUEUEING */
#if LWIP_IGMP
LWIP_MEMPOOL(IGMP_GROUP, MEMP_NUM_IGMP_GROUP, sizeof(struct igmp_group), "IGMP_GROUP", DMEM_ATTR)
#endif /* LWIP_IGMP */
#if (!NO_SYS || (NO_SYS && !NO_SYS_NO_TIMERS)) /* LWIP_TIMERS */
LWIP_MEMPOOL(SYS_TIMEOUT, MEMP_NUM_SYS_TIMEOUT, sizeof(struct sys_timeo), "SYS_TIMEOUT", DMEM_ATTR)
#endif /* LWIP_TIMERS */
#if LWIP_SNMP
LWIP_MEMPOOL(SNMP_ROOTNODE, MEMP_NUM_SNMP_ROOTNODE, sizeof(struct mib_list_rootnode), "SNMP_ROOTNODE")
LWIP_MEMPOOL(SNMP_NODE, MEMP_NUM_SNMP_NODE, sizeof(struct mib_list_node), "SNMP_NODE")
LWIP_MEMPOOL(SNMP_VARBIND, MEMP_NUM_SNMP_VARBIND, sizeof(struct snmp_varbind), "SNMP_VARBIND")
LWIP_MEMPOOL(SNMP_VALUE, MEMP_NUM_SNMP_VALUE, SNMP_MAX_VALUE_SIZE, "SNMP_VALUE")
#endif /* LWIP_SNMP */
#if LWIP_DNS && LWIP_SOCKET
LWIP_MEMPOOL(NETDB, MEMP_NUM_NETDB, NETDB_ELEM_SIZE, "NETDB")
#endif /* LWIP_DNS && LWIP_SOCKET */
#if LWIP_DNS && DNS_LOCAL_HOSTLIST && DNS_LOCAL_HOSTLIST_IS_DYNAMIC
LWIP_MEMPOOL(LOCALHOSTLIST, MEMP_NUM_LOCALHOSTLIST, LOCALHOSTLIST_ELEM_SIZE, "LOCALHOSTLIST")
#endif /* LWIP_DNS && DNS_LOCAL_HOSTLIST && DNS_LOCAL_HOSTLIST_IS_DYNAMIC */
#if PPP_SUPPORT && PPPOE_SUPPORT
LWIP_MEMPOOL(PPPOE_IF, MEMP_NUM_PPPOE_INTERFACES, sizeof(struct pppoe_softc), "PPPOE_IF")
#endif /* PPP_SUPPORT && PPPOE_SUPPORT */
/*
* A list of pools of pbuf's used by LWIP.
*
* LWIP_PBUF_MEMPOOL(pool_name, number_elements, pbuf_payload_size, pool_description)
* creates a pool name MEMP_pool_name. description is used in stats.c
* This allocates enough space for the pbuf struct and a payload.
* (Example: pbuf_payload_size=0 allocates only size for the struct)
*/
LWIP_PBUF_MEMPOOL(PBUF, MEMP_NUM_PBUF, 0, "PBUF_REF/ROM", DMEM_ATTR)
/* XXX: need to align to 4 byte as memp strcut is 4-byte long. otherwise will crash */
#define LWIP_MEM_ALIGN4_SIZE(size) (((size) + 4 - 1) & ~(4-1))
LWIP_PBUF_MEMPOOL(PBUF_POOL, PBUF_POOL_SIZE, LWIP_MEM_ALIGN4_SIZE(PBUF_POOL_BUFSIZE), "PBUF_POOL", DMEM_ATTR)
/*
* Allow for user-defined pools; this must be explicitly set in lwipopts.h
* since the default is to NOT look for lwippools.h
*/
#if MEMP_USE_CUSTOM_POOLS
#include "lwippools.h"
#endif /* MEMP_USE_CUSTOM_POOLS */
/*
* REQUIRED CLEANUP: Clear up so we don't get "multiply defined" error later
* (#undef is ignored for something that is not defined)
*/
#undef LWIP_MEMPOOL
#undef LWIP_MALLOC_MEMPOOL
#undef LWIP_MALLOC_MEMPOOL_START
#undef LWIP_MALLOC_MEMPOOL_END
#undef LWIP_PBUF_MEMPOOL

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/*
* Copyright (c) 2001-2004 Swedish Institute of Computer Science.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGE.
*
* This file is part of the lwIP TCP/IP stack.
*
* Author: Adam Dunkels <adam@sics.se>
*
*/
#ifndef __LWIP_NETBUF_H__
#define __LWIP_NETBUF_H__
#include "lwip/opt.h"
#include "lwip/pbuf.h"
#include "lwip/ip_addr.h"
#ifdef __cplusplus
extern "C" {
#endif
/** This netbuf has dest-addr/port set */
#define NETBUF_FLAG_DESTADDR 0x01
/** This netbuf includes a checksum */
#define NETBUF_FLAG_CHKSUM 0x02
struct netbuf {
struct pbuf *p, *ptr;
ip_addr_t addr;
u16_t port;
#if LWIP_NETBUF_RECVINFO || LWIP_CHECKSUM_ON_COPY
#if LWIP_CHECKSUM_ON_COPY
u8_t flags;
#endif /* LWIP_CHECKSUM_ON_COPY */
u16_t toport_chksum;
#if LWIP_NETBUF_RECVINFO
ip_addr_t toaddr;
#endif /* LWIP_NETBUF_RECVINFO */
#endif /* LWIP_NETBUF_RECVINFO || LWIP_CHECKSUM_ON_COPY */
};
/* Network buffer functions: */
struct netbuf * netbuf_new (void)ICACHE_FLASH_ATTR;
void netbuf_delete (struct netbuf *buf)ICACHE_FLASH_ATTR;
void * netbuf_alloc (struct netbuf *buf, u16_t size)ICACHE_FLASH_ATTR;
void netbuf_free (struct netbuf *buf)ICACHE_FLASH_ATTR;
err_t netbuf_ref (struct netbuf *buf,
const void *dataptr, u16_t size)ICACHE_FLASH_ATTR;
void netbuf_chain (struct netbuf *head,
struct netbuf *tail)ICACHE_FLASH_ATTR;
err_t netbuf_data (struct netbuf *buf,
void **dataptr, u16_t *len)ICACHE_FLASH_ATTR;
s8_t netbuf_next (struct netbuf *buf)ICACHE_FLASH_ATTR;
void netbuf_first (struct netbuf *buf)ICACHE_FLASH_ATTR;
#define netbuf_copy_partial(buf, dataptr, len, offset) \
pbuf_copy_partial((buf)->p, (dataptr), (len), (offset))
#define netbuf_copy(buf,dataptr,len) netbuf_copy_partial(buf, dataptr, len, 0)
#define netbuf_take(buf, dataptr, len) pbuf_take((buf)->p, dataptr, len)
#define netbuf_len(buf) ((buf)->p->tot_len)
#define netbuf_fromaddr(buf) (&((buf)->addr))
#define netbuf_set_fromaddr(buf, fromaddr) ip_addr_set((&(buf)->addr), fromaddr)
#define netbuf_fromport(buf) ((buf)->port)
#if LWIP_NETBUF_RECVINFO
#define netbuf_destaddr(buf) (&((buf)->toaddr))
#define netbuf_set_destaddr(buf, destaddr) ip_addr_set((&(buf)->addr), destaddr)
#define netbuf_destport(buf) (((buf)->flags & NETBUF_FLAG_DESTADDR) ? (buf)->toport_chksum : 0)
#endif /* LWIP_NETBUF_RECVINFO */
#if LWIP_CHECKSUM_ON_COPY
#define netbuf_set_chksum(buf, chksum) do { (buf)->flags = NETBUF_FLAG_CHKSUM; \
(buf)->toport_chksum = chksum; } while(0)
#endif /* LWIP_CHECKSUM_ON_COPY */
#ifdef __cplusplus
}
#endif
#endif /* __LWIP_NETBUF_H__ */

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/*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGE.
*
* This file is part of the lwIP TCP/IP stack.
*
* Author: Simon Goldschmidt
*
*/
#ifndef __LWIP_NETDB_H__
#define __LWIP_NETDB_H__
#include "lwip/opt.h"
#if LWIP_DNS && LWIP_SOCKET
#include <stddef.h> /* for size_t */
#include "lwip/inet.h"
#include "lwip/sockets.h"
#ifdef __cplusplus
extern "C" {
#endif
/* some rarely used options */
#ifndef LWIP_DNS_API_DECLARE_H_ERRNO
#define LWIP_DNS_API_DECLARE_H_ERRNO 1
#endif
#ifndef LWIP_DNS_API_DEFINE_ERRORS
#define LWIP_DNS_API_DEFINE_ERRORS 1
#endif
#ifndef LWIP_DNS_API_DECLARE_STRUCTS
#define LWIP_DNS_API_DECLARE_STRUCTS 1
#endif
#if LWIP_DNS_API_DEFINE_ERRORS
/** Errors used by the DNS API functions, h_errno can be one of them */
#define EAI_NONAME 200
#define EAI_SERVICE 201
#define EAI_FAIL 202
#define EAI_MEMORY 203
#define HOST_NOT_FOUND 210
#define NO_DATA 211
#define NO_RECOVERY 212
#define TRY_AGAIN 213
#endif /* LWIP_DNS_API_DEFINE_ERRORS */
#if LWIP_DNS_API_DECLARE_STRUCTS
struct hostent {
char *h_name; /* Official name of the host. */
char **h_aliases; /* A pointer to an array of pointers to alternative host names,
terminated by a null pointer. */
int h_addrtype; /* Address type. */
int h_length; /* The length, in bytes, of the address. */
char **h_addr_list; /* A pointer to an array of pointers to network addresses (in
network byte order) for the host, terminated by a null pointer. */
#define h_addr h_addr_list[0] /* for backward compatibility */
};
struct addrinfo {
int ai_flags; /* Input flags. */
int ai_family; /* Address family of socket. */
int ai_socktype; /* Socket type. */
int ai_protocol; /* Protocol of socket. */
socklen_t ai_addrlen; /* Length of socket address. */
struct sockaddr *ai_addr; /* Socket address of socket. */
char *ai_canonname; /* Canonical name of service location. */
struct addrinfo *ai_next; /* Pointer to next in list. */
};
#endif /* LWIP_DNS_API_DECLARE_STRUCTS */
#if LWIP_DNS_API_DECLARE_H_ERRNO
/* application accessable error code set by the DNS API functions */
extern int h_errno;
#endif /* LWIP_DNS_API_DECLARE_H_ERRNO*/
struct hostent *lwip_gethostbyname(const char *name);
int lwip_gethostbyname_r(const char *name, struct hostent *ret, char *buf,
size_t buflen, struct hostent **result, int *h_errnop);
void lwip_freeaddrinfo(struct addrinfo *ai);
int lwip_getaddrinfo(const char *nodename,
const char *servname,
const struct addrinfo *hints,
struct addrinfo **res);
#if LWIP_COMPAT_SOCKETS
#define gethostbyname(name) lwip_gethostbyname(name)
#define gethostbyname_r(name, ret, buf, buflen, result, h_errnop) \
lwip_gethostbyname_r(name, ret, buf, buflen, result, h_errnop)
#define freeaddrinfo(addrinfo) lwip_freeaddrinfo(addrinfo)
#define getaddrinfo(nodname, servname, hints, res) \
lwip_getaddrinfo(nodname, servname, hints, res)
#endif /* LWIP_COMPAT_SOCKETS */
#ifdef __cplusplus
}
#endif
#endif /* LWIP_DNS && LWIP_SOCKET */
#endif /* __LWIP_NETDB_H__ */

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/*
* Copyright (c) 2001-2004 Swedish Institute of Computer Science.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGE.
*
* This file is part of the lwIP TCP/IP stack.
*
* Author: Adam Dunkels <adam@sics.se>
*
*/
#ifndef __LWIP_NETIF_H__
#define __LWIP_NETIF_H__
#include "lwip/opt.h"
#define ENABLE_LOOPBACK (LWIP_NETIF_LOOPBACK || LWIP_HAVE_LOOPIF)
#include "lwip/err.h"
#include "lwip/ip_addr.h"
#include "lwip/def.h"
#include "lwip/pbuf.h"
#if LWIP_DHCP
struct dhcp;
#endif
#if LWIP_AUTOIP
struct autoip;
#endif
#ifdef __cplusplus
extern "C" {
#endif
/* Throughout this file, IP addresses are expected to be in
* the same byte order as in IP_PCB. */
/** must be the maximum of all used hardware address lengths
across all types of interfaces in use */
#define NETIF_MAX_HWADDR_LEN 6U
/** Whether the network interface is 'up'. This is
* a software flag used to control whether this network
* interface is enabled and processes traffic.
* It is set by the startup code (for static IP configuration) or
* by dhcp/autoip when an address has been assigned.
*/
#define NETIF_FLAG_UP 0x01U
/** If set, the netif has broadcast capability.
* Set by the netif driver in its init function. */
#define NETIF_FLAG_BROADCAST 0x02U
/** If set, the netif is one end of a point-to-point connection.
* Set by the netif driver in its init function. */
#define NETIF_FLAG_POINTTOPOINT 0x04U
/** If set, the interface is configured using DHCP.
* Set by the DHCP code when starting or stopping DHCP. */
#define NETIF_FLAG_DHCP 0x08U
/** If set, the interface has an active link
* (set by the network interface driver).
* Either set by the netif driver in its init function (if the link
* is up at that time) or at a later point once the link comes up
* (if link detection is supported by the hardware). */
#define NETIF_FLAG_LINK_UP 0x10U
/** If set, the netif is an ethernet device using ARP.
* Set by the netif driver in its init function.
* Used to check input packet types and use of DHCP. */
#define NETIF_FLAG_ETHARP 0x20U
/** If set, the netif is an ethernet device. It might not use
* ARP or TCP/IP if it is used for PPPoE only.
*/
#define NETIF_FLAG_ETHERNET 0x40U
/** If set, the netif has IGMP capability.
* Set by the netif driver in its init function. */
#define NETIF_FLAG_IGMP 0x80U
/** Function prototype for netif init functions. Set up flags and output/linkoutput
* callback functions in this function.
*
* @param netif The netif to initialize
*/
typedef err_t (*netif_init_fn)(struct netif *netif);
/** Function prototype for netif->input functions. This function is saved as 'input'
* callback function in the netif struct. Call it when a packet has been received.
*
* @param p The received packet, copied into a pbuf
* @param inp The netif which received the packet
*/
typedef err_t (*netif_input_fn)(struct pbuf *p, struct netif *inp);
/** Function prototype for netif->output functions. Called by lwIP when a packet
* shall be sent. For ethernet netif, set this to 'etharp_output' and set
* 'linkoutput'.
*
* @param netif The netif which shall send a packet
* @param p The packet to send (p->payload points to IP header)
* @param ipaddr The IP address to which the packet shall be sent
*/
typedef err_t (*netif_output_fn)(struct netif *netif, struct pbuf *p,
ip_addr_t *ipaddr);
/** Function prototype for netif->linkoutput functions. Only used for ethernet
* netifs. This function is called by ARP when a packet shall be sent.
*
* @param netif The netif which shall send a packet
* @param p The packet to send (raw ethernet packet)
*/
typedef err_t (*netif_linkoutput_fn)(struct netif *netif, struct pbuf *p);
/** Function prototype for netif status- or link-callback functions. */
typedef void (*netif_status_callback_fn)(struct netif *netif);
/** Function prototype for netif igmp_mac_filter functions */
typedef err_t (*netif_igmp_mac_filter_fn)(struct netif *netif,
ip_addr_t *group, u8_t action);
/** Generic data structure used for all lwIP network interfaces.
* The following fields should be filled in by the initialization
* function for the device driver: hwaddr_len, hwaddr[], mtu, flags */
struct netif {
/** pointer to next in linked list */
struct netif *next;
/** IP address configuration in network byte order */
ip_addr_t ip_addr;
ip_addr_t netmask;
ip_addr_t gw;
/** This function is called by the network device driver
* to pass a packet up the TCP/IP stack. 向IP层输入数据包*/
netif_input_fn input;
/** This function is called by the IP module when it wants
* to send a packet on the interface. This function typically
* first resolves the hardware address, then sends the packet. 发送IP数据包*/
netif_output_fn output;
/** This function is called by the ARP module when it wants
* to send a packet on the interface. This function outputs
* the pbuf as-is on the link medium. 底层数据包发送*/
netif_linkoutput_fn linkoutput;
#if LWIP_NETIF_STATUS_CALLBACK
/** This function is called when the netif state is set to up or down
*/
netif_status_callback_fn status_callback;
#endif /* LWIP_NETIF_STATUS_CALLBACK */
#if LWIP_NETIF_LINK_CALLBACK
/** This function is called when the netif link is set to up or down
*/
netif_status_callback_fn link_callback;
#endif /* LWIP_NETIF_LINK_CALLBACK */
/** This field can be set by the device driver and could point
* to state information for the device. 自由设置字段，比如指向底层设备相关信息*/
void *state;
#if LWIP_DHCP
/** the DHCP client state information for this netif */
struct dhcp *dhcp;
#endif /* LWIP_DHCP */
#if LWIP_AUTOIP
/** the AutoIP client state information for this netif */
struct autoip *autoip;
#endif
#if LWIP_NETIF_HOSTNAME
/* the hostname for this netif, NULL is a valid value */
char* hostname;
#endif /* LWIP_NETIF_HOSTNAME */
/** maximum transfer unit (in bytes) 该接口允许的最大数据包长度，多是1500*/
u16_t mtu;
/** number of bytes used in hwaddr该接口物理地址长度 */
u8_t hwaddr_len;
/** link level hardware address of this interface 该接口物理地址*/
u8_t hwaddr[NETIF_MAX_HWADDR_LEN];
/** flags (see NETIF_FLAG_ above) 该接口状态、属性字段*/
u8_t flags;
/** descriptive abbreviation 该接口的名字*/
char name[2];
/** number of this interface 该接口的编号*/
u8_t num;
#if LWIP_SNMP
/** link type (from "snmp_ifType" enum from snmp.h) */
u8_t link_type;
/** (estimate) link speed */
u32_t link_speed;
/** timestamp at last change made (up/down) */
u32_t ts;
/** counters */
u32_t ifinoctets;
u32_t ifinucastpkts;
u32_t ifinnucastpkts;
u32_t ifindiscards;
u32_t ifoutoctets;
u32_t ifoutucastpkts;
u32_t ifoutnucastpkts;
u32_t ifoutdiscards;
#endif /* LWIP_SNMP */
#if LWIP_IGMP
/** This function could be called to add or delete a entry in the multicast
filter table of the ethernet MAC.*/
netif_igmp_mac_filter_fn igmp_mac_filter;
#endif /* LWIP_IGMP */
#if LWIP_NETIF_HWADDRHINT
u8_t *addr_hint;
#endif /* LWIP_NETIF_HWADDRHINT */
#if ENABLE_LOOPBACK
/* List of packets to be queued for ourselves. 指向发送给自己的数据包的pbuf*/
struct pbuf *loop_first;//第一个
struct pbuf *loop_last;//最后一个
#if LWIP_LOOPBACK_MAX_PBUFS
u16_t loop_cnt_current;
#endif /* LWIP_LOOPBACK_MAX_PBUFS */
#endif /* ENABLE_LOOPBACK */
};
#if LWIP_SNMP
#define NETIF_INIT_SNMP(netif, type, speed) \
/* use "snmp_ifType" enum from snmp.h for "type", snmp_ifType_ethernet_csmacd by example */ \
(netif)->link_type = (type); \
/* your link speed here (units: bits per second) */ \
(netif)->link_speed = (speed); \
(netif)->ts = 0; \
(netif)->ifinoctets = 0; \
(netif)->ifinucastpkts = 0; \
(netif)->ifinnucastpkts = 0; \
(netif)->ifindiscards = 0; \
(netif)->ifoutoctets = 0; \
(netif)->ifoutucastpkts = 0; \
(netif)->ifoutnucastpkts = 0; \
(netif)->ifoutdiscards = 0
#else /* LWIP_SNMP */
#define NETIF_INIT_SNMP(netif, type, speed)
#endif /* LWIP_SNMP */
/** The list of network interfaces. */
extern struct netif *netif_list;
/** The default network interface. */
extern struct netif *netif_default;
void netif_init(void)ICACHE_FLASH_ATTR;
struct netif *netif_add(struct netif *netif, ip_addr_t *ipaddr, ip_addr_t *netmask,
ip_addr_t *gw, void *state, netif_init_fn init, netif_input_fn input)ICACHE_FLASH_ATTR;
void
netif_set_addr(struct netif *netif, ip_addr_t *ipaddr, ip_addr_t *netmask,
ip_addr_t *gw)ICACHE_FLASH_ATTR;
void netif_remove(struct netif * netif)ICACHE_FLASH_ATTR;
/* Returns a network interface given its name. The name is of the form
"et0", where the first two letters are the "name" field in the
netif structure, and the digit is in the num field in the same
structure. */
struct netif *netif_find(char *name)ICACHE_FLASH_ATTR;
void netif_set_default(struct netif *netif)ICACHE_FLASH_ATTR;
void netif_set_ipaddr(struct netif *netif, ip_addr_t *ipaddr)ICACHE_FLASH_ATTR;
void netif_set_netmask(struct netif *netif, ip_addr_t *netmask)ICACHE_FLASH_ATTR;
void netif_set_gw(struct netif *netif, ip_addr_t *gw)ICACHE_FLASH_ATTR;
void netif_set_up(struct netif *netif)ICACHE_FLASH_ATTR;
void netif_set_down(struct netif *netif)ICACHE_FLASH_ATTR;
/** Ask if an interface is up */
#define netif_is_up(netif) (((netif)->flags & NETIF_FLAG_UP) ? (u8_t)1 : (u8_t)0)
#if LWIP_NETIF_STATUS_CALLBACK
void netif_set_status_callback(struct netif *netif, netif_status_callback_fn status_callback)ICACHE_FLASH_ATTR;
#endif /* LWIP_NETIF_STATUS_CALLBACK */
void netif_set_link_up(struct netif *netif)ICACHE_FLASH_ATTR;
void netif_set_link_down(struct netif *netif)ICACHE_FLASH_ATTR;
/** Ask if a link is up */
#define netif_is_link_up(netif) (((netif)->flags & NETIF_FLAG_LINK_UP) ? (u8_t)1 : (u8_t)0)
#if LWIP_NETIF_LINK_CALLBACK
void netif_set_link_callback(struct netif *netif, netif_status_callback_fn link_callback)ICACHE_FLASH_ATTR;
#endif /* LWIP_NETIF_LINK_CALLBACK */
#if LWIP_NETIF_HOSTNAME
#define netif_set_hostname(netif, name) do { if((netif) != NULL) { (netif)->hostname = name; }}while(0)
#define netif_get_hostname(netif) (((netif) != NULL) ? ((netif)->hostname) : NULL)
#endif /* LWIP_NETIF_HOSTNAME */
#if LWIP_IGMP
#define netif_set_igmp_mac_filter(netif, function) do { if((netif) != NULL) { (netif)->igmp_mac_filter = function; }}while(0)
#define netif_get_igmp_mac_filter(netif) (((netif) != NULL) ? ((netif)->igmp_mac_filter) : NULL)
#endif /* LWIP_IGMP */
#if ENABLE_LOOPBACK
err_t netif_loop_output(struct netif *netif, struct pbuf *p, ip_addr_t *dest_ip)ICACHE_FLASH_ATTR;
void netif_poll(struct netif *netif)ICACHE_FLASH_ATTR;
#if !LWIP_NETIF_LOOPBACK_MULTITHREADING
void netif_poll_all(void)ICACHE_FLASH_ATTR;
#endif /* !LWIP_NETIF_LOOPBACK_MULTITHREADING */
#endif /* ENABLE_LOOPBACK */
#ifdef __cplusplus
}
#endif
#endif /* __LWIP_NETIF_H__ */

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/*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGE.
*
* This file is part of the lwIP TCP/IP stack.
*
*/
#ifndef __LWIP_NETIFAPI_H__
#define __LWIP_NETIFAPI_H__
#include "lwip/opt.h"
#if LWIP_NETIF_API /* don't build if not configured for use in lwipopts.h */
#include "lwip/sys.h"
#include "lwip/netif.h"
#include "lwip/dhcp.h"
#include "lwip/autoip.h"
#ifdef __cplusplus
extern "C" {
#endif
typedef void (*netifapi_void_fn)(struct netif *netif);
typedef err_t (*netifapi_errt_fn)(struct netif *netif);
struct netifapi_msg_msg {
#if !LWIP_TCPIP_CORE_LOCKING
sys_sem_t sem;
#endif /* !LWIP_TCPIP_CORE_LOCKING */
err_t err;
struct netif *netif;
union {
struct {
ip_addr_t *ipaddr;
ip_addr_t *netmask;
ip_addr_t *gw;
void *state;
netif_init_fn init;
netif_input_fn input;
} add;
struct {
netifapi_void_fn voidfunc;
netifapi_errt_fn errtfunc;
} common;
} msg;
};
struct netifapi_msg {
void (* function)(struct netifapi_msg_msg *msg);
struct netifapi_msg_msg msg;
};
/* API for application */
err_t netifapi_netif_add ( struct netif *netif,
ip_addr_t *ipaddr,
ip_addr_t *netmask,
ip_addr_t *gw,
void *state,
netif_init_fn init,
netif_input_fn input);
err_t netifapi_netif_set_addr ( struct netif *netif,
ip_addr_t *ipaddr,
ip_addr_t *netmask,
ip_addr_t *gw );
err_t netifapi_netif_common ( struct netif *netif,
netifapi_void_fn voidfunc,
netifapi_errt_fn errtfunc);
#define netifapi_netif_remove(n) netifapi_netif_common(n, netif_remove, NULL)
#define netifapi_netif_set_up(n) netifapi_netif_common(n, netif_set_up, NULL)
#define netifapi_netif_set_down(n) netifapi_netif_common(n, netif_set_down, NULL)
#define netifapi_netif_set_default(n) netifapi_netif_common(n, netif_set_default, NULL)
#define netifapi_dhcp_start(n) netifapi_netif_common(n, NULL, dhcp_start)
#define netifapi_dhcp_stop(n) netifapi_netif_common(n, dhcp_stop, NULL)
#define netifapi_autoip_start(n) netifapi_netif_common(n, NULL, autoip_start)
#define netifapi_autoip_stop(n) netifapi_netif_common(n, NULL, autoip_stop)
#ifdef __cplusplus
}
#endif
#endif /* LWIP_NETIF_API */
#endif /* __LWIP_NETIFAPI_H__ */

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/*
* Copyright (c) 2001-2004 Swedish Institute of Computer Science.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGE.
*
* This file is part of the lwIP TCP/IP stack.
*
* Author: Adam Dunkels <adam@sics.se>
*
*/
#ifndef __LWIP_PBUF_H__
#define __LWIP_PBUF_H__
#include "lwip/opt.h"
#include "lwip/err.h"
#ifdef __cplusplus
extern "C" {
#endif
/** Currently, the pbuf_custom code is only needed for one specific configuration
* of IP_FRAG */
#define LWIP_SUPPORT_CUSTOM_PBUF (IP_FRAG && !IP_FRAG_USES_STATIC_BUF && !LWIP_NETIF_TX_SINGLE_PBUF)
#define PBUF_TRANSPORT_HLEN 20
#define PBUF_IP_HLEN 20
typedef enum {
PBUF_TRANSPORT,
PBUF_IP,
PBUF_LINK,
PBUF_RAW
} pbuf_layer;
typedef enum {
PBUF_RAM, /* pbuf data is stored in RAM */
PBUF_ROM, /* pbuf data is stored in ROM */
PBUF_REF, /* pbuf comes from the pbuf pool */
PBUF_POOL, /* pbuf payload refers to RAM */
#ifdef EBUF_LWIP
PBUF_ESF_RX /* pbuf payload is from WLAN */
#endif /* ESF_LWIP */
} pbuf_type;
/** indicates this packet's data should be immediately passed to the application */
#define PBUF_FLAG_PUSH 0x01U
/** indicates this is a custom pbuf: pbuf_free and pbuf_header handle such a
a pbuf differently */
#define PBUF_FLAG_IS_CUSTOM 0x02U
/** indicates this pbuf is UDP multicast to be looped back */
#define PBUF_FLAG_MCASTLOOP 0x04U
struct pbuf {
/** next pbuf in singly linked pbuf chain */
struct pbuf *next;
/** pointer to the actual data in the buffer */
void *payload;
/**
* total length of this buffer and all next buffers in chain
* belonging to the same packet.
*
* For non-queue packet chains this is the invariant:
* p->tot_len == p->len + (p->next? p->next->tot_len: 0)
*/
u16_t tot_len;
/** length of this buffer */
u16_t len;
/** pbuf_type as u8_t instead of enum to save space */
u8_t /*pbuf_type*/ type;
/** misc flags */
u8_t flags;
/**
* the reference count always equals the number of pointers
* that refer to this pbuf. This can be pointers from an application,
* the stack itself, or pbuf->next pointers from a chain.
*/
u16_t ref;
/* add a pointer for esf_buf */
void * eb;
};
#if LWIP_SUPPORT_CUSTOM_PBUF
/** Prototype for a function to free a custom pbuf */
typedef void (*pbuf_free_custom_fn)(struct pbuf *p);
/** A custom pbuf: like a pbuf, but following a function pointer to free it. */
struct pbuf_custom {
/** The actual pbuf */
struct pbuf pbuf;
/** This function is called when pbuf_free deallocates this pbuf(_custom) */
pbuf_free_custom_fn custom_free_function;
};
#endif /* LWIP_SUPPORT_CUSTOM_PBUF */
/* Initializes the pbuf module. This call is empty for now, but may not be in future. */
#define pbuf_init()
struct pbuf *pbuf_alloc(pbuf_layer l, u16_t length, pbuf_type type)ICACHE_FLASH_ATTR;
#if LWIP_SUPPORT_CUSTOM_PBUF
struct pbuf *pbuf_alloced_custom(pbuf_layer l, u16_t length, pbuf_type type,
struct pbuf_custom *p, void *payload_mem,
u16_t payload_mem_len)ICACHE_FLASH_ATTR;
#endif /* LWIP_SUPPORT_CUSTOM_PBUF */
void pbuf_realloc(struct pbuf *p, u16_t size)ICACHE_FLASH_ATTR;
u8_t pbuf_header(struct pbuf *p, s16_t header_size)ICACHE_FLASH_ATTR;
void pbuf_ref(struct pbuf *p)ICACHE_FLASH_ATTR;
u8_t pbuf_free(struct pbuf *p)ICACHE_FLASH_ATTR;
u8_t pbuf_clen(struct pbuf *p)ICACHE_FLASH_ATTR;
void pbuf_cat(struct pbuf *head, struct pbuf *tail)ICACHE_FLASH_ATTR;
void pbuf_chain(struct pbuf *head, struct pbuf *tail)ICACHE_FLASH_ATTR;
struct pbuf *pbuf_dechain(struct pbuf *p)ICACHE_FLASH_ATTR;
err_t pbuf_copy(struct pbuf *p_to, struct pbuf *p_from)ICACHE_FLASH_ATTR;
u16_t pbuf_copy_partial(struct pbuf *p, void *dataptr, u16_t len, u16_t offset)ICACHE_FLASH_ATTR;
err_t pbuf_take(struct pbuf *buf, const void *dataptr, u16_t len)ICACHE_FLASH_ATTR;
struct pbuf *pbuf_coalesce(struct pbuf *p, pbuf_layer layer)ICACHE_FLASH_ATTR;
#if LWIP_CHECKSUM_ON_COPY
err_t pbuf_fill_chksum(struct pbuf *p, u16_t start_offset, const void *dataptr,
u16_t len, u16_t *chksum)ICACHE_FLASH_ATTR;
#endif /* LWIP_CHECKSUM_ON_COPY */
u8_t pbuf_get_at(struct pbuf* p, u16_t offset)ICACHE_FLASH_ATTR;
u16_t pbuf_memcmp(struct pbuf* p, u16_t offset, const void* s2, u16_t n)ICACHE_FLASH_ATTR;
u16_t pbuf_memfind(struct pbuf* p, const void* mem, u16_t mem_len, u16_t start_offset)ICACHE_FLASH_ATTR;
u16_t pbuf_strstr(struct pbuf* p, const char* substr)ICACHE_FLASH_ATTR;
#ifdef __cplusplus
}
#endif
#endif /* __LWIP_PBUF_H__ */

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/*
* Copyright (c) 2001-2004 Swedish Institute of Computer Science.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGE.
*
* This file is part of the lwIP TCP/IP stack.
*
* Author: Adam Dunkels <adam@sics.se>
*
*/
#ifndef __LWIP_RAW_H__
#define __LWIP_RAW_H__
#include "lwip/opt.h"
#if LWIP_RAW /* don't build if not configured for use in lwipopts.h */
#include "lwip/pbuf.h"
#include "lwip/def.h"
#include "lwip/ip.h"
#include "lwip/ip_addr.h"
#ifdef __cplusplus
extern "C" {
#endif
struct raw_pcb;
/** Function prototype for raw pcb receive callback functions.
* @param arg user supplied argument (raw_pcb.recv_arg)
* @param pcb the raw_pcb which received data
* @param p the packet buffer that was received
* @param addr the remote IP address from which the packet was received
* @return 1 if the packet was 'eaten' (aka. deleted),
* 0 if the packet lives on
* If returning 1, the callback is responsible for freeing the pbuf
* if it's not used any more.
*/
typedef u8_t (*raw_recv_fn)(void *arg, struct raw_pcb *pcb, struct pbuf *p,
ip_addr_t *addr);
struct raw_pcb {
/* Common members of all PCB types */
IP_PCB;
struct raw_pcb *next;
u8_t protocol;
/** receive callback function */
raw_recv_fn recv;
/* user-supplied argument for the recv callback */
void *recv_arg;
};
/* The following functions is the application layer interface to the
RAW code. */
struct raw_pcb * raw_new (u8_t proto)ICACHE_FLASH_ATTR;
void raw_remove (struct raw_pcb *pcb)ICACHE_FLASH_ATTR;
err_t raw_bind (struct raw_pcb *pcb, ip_addr_t *ipaddr)ICACHE_FLASH_ATTR;
err_t raw_connect (struct raw_pcb *pcb, ip_addr_t *ipaddr)ICACHE_FLASH_ATTR;
void raw_recv (struct raw_pcb *pcb, raw_recv_fn recv, void *recv_arg)ICACHE_FLASH_ATTR;
err_t raw_sendto (struct raw_pcb *pcb, struct pbuf *p, ip_addr_t *ipaddr)ICACHE_FLASH_ATTR;
err_t raw_send (struct raw_pcb *pcb, struct pbuf *p);
/* The following functions are the lower layer interface to RAW. */
u8_t raw_input (struct pbuf *p, struct netif *inp)ICACHE_FLASH_ATTR;
#define raw_init() /* Compatibility define, not init needed. */
#ifdef __cplusplus
}
#endif
#endif /* LWIP_RAW */
#endif /* __LWIP_RAW_H__ */

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/*
* Copyright (c) 2001-2004 Swedish Institute of Computer Science.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGE.
*
* This file is part of the lwIP TCP/IP stack.
*/
/*
* This is the interface to the platform specific serial IO module
* It needs to be implemented by those platforms which need SLIP or PPP
*/
#ifndef __SIO_H__
#define __SIO_H__
#include "lwip/arch.h"
#ifdef __cplusplus
extern "C" {
#endif
/* If you want to define sio_fd_t elsewhere or differently,
define this in your cc.h file. */
#ifndef __sio_fd_t_defined
typedef void * sio_fd_t;
#endif
/* The following functions can be defined to something else in your cc.h file
or be implemented in your custom sio.c file. */
#ifndef sio_open
/**
* Opens a serial device for communication.
*
* @param devnum device number
* @return handle to serial device if successful, NULL otherwise
*/
sio_fd_t sio_open(u8_t devnum)ICACHE_FLASH_ATTR;
#endif
#ifndef sio_send
/**
* Sends a single character to the serial device.
*
* @param c character to send
* @param fd serial device handle
*
* @note This function will block until the character can be sent.
*/
void sio_send(u8_t c, sio_fd_t fd)ICACHE_FLASH_ATTR;
#endif
#ifndef sio_recv
/**
* Receives a single character from the serial device.
*
* @param fd serial device handle
*
* @note This function will block until a character is received.
*/
u8_t sio_recv(sio_fd_t fd)ICACHE_FLASH_ATTR;
#endif
#ifndef sio_read
/**
* Reads from the serial device.
*
* @param fd serial device handle
* @param data pointer to data buffer for receiving
* @param len maximum length (in bytes) of data to receive
* @return number of bytes actually received - may be 0 if aborted by sio_read_abort
*
* @note This function will block until data can be received. The blocking
* can be cancelled by calling sio_read_abort().
*/
u32_t sio_read(sio_fd_t fd, u8_t *data, u32_t len)ICACHE_FLASH_ATTR;
#endif
#ifndef sio_tryread
/**
* Tries to read from the serial device. Same as sio_read but returns
* immediately if no data is available and never blocks.
*
* @param fd serial device handle
* @param data pointer to data buffer for receiving
* @param len maximum length (in bytes) of data to receive
* @return number of bytes actually received
*/
u32_t sio_tryread(sio_fd_t fd, u8_t *data, u32_t len)ICACHE_FLASH_ATTR;
#endif
#ifndef sio_write
/**
* Writes to the serial device.
*
* @param fd serial device handle
* @param data pointer to data to send
* @param len length (in bytes) of data to send
* @return number of bytes actually sent
*
* @note This function will block until all data can be sent.
*/
u32_t sio_write(sio_fd_t fd, u8_t *data, u32_t len)ICACHE_FLASH_ATTR;
#endif
#ifndef sio_read_abort
/**
* Aborts a blocking sio_read() call.
*
* @param fd serial device handle
*/
void sio_read_abort(sio_fd_t fd)ICACHE_FLASH_ATTR;
#endif
#ifdef __cplusplus
}
#endif
#endif /* __SIO_H__ */

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/*
* Copyright (c) 2001, 2002 Leon Woestenberg <leon.woestenberg@axon.tv>
* Copyright (c) 2001, 2002 Axon Digital Design B.V., The Netherlands.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGE.
*
* This file is part of the lwIP TCP/IP stack.
*
* Author: Leon Woestenberg <leon.woestenberg@axon.tv>
*
*/
#ifndef __LWIP_SNMP_H__
#define __LWIP_SNMP_H__
#include "lwip/opt.h"
#ifdef __cplusplus
extern "C" {
#endif
#include "lwip/ip_addr.h"
struct udp_pcb;
struct netif;
/**
* @see RFC1213, "MIB-II, 6. Definitions"
*/
enum snmp_ifType {
snmp_ifType_other=1, /* none of the following */
snmp_ifType_regular1822,
snmp_ifType_hdh1822,
snmp_ifType_ddn_x25,
snmp_ifType_rfc877_x25,
snmp_ifType_ethernet_csmacd,
snmp_ifType_iso88023_csmacd,
snmp_ifType_iso88024_tokenBus,
snmp_ifType_iso88025_tokenRing,
snmp_ifType_iso88026_man,
snmp_ifType_starLan,
snmp_ifType_proteon_10Mbit,
snmp_ifType_proteon_80Mbit,
snmp_ifType_hyperchannel,
snmp_ifType_fddi,
snmp_ifType_lapb,
snmp_ifType_sdlc,
snmp_ifType_ds1, /* T-1 */
snmp_ifType_e1, /* european equiv. of T-1 */
snmp_ifType_basicISDN,
snmp_ifType_primaryISDN, /* proprietary serial */
snmp_ifType_propPointToPointSerial,
snmp_ifType_ppp,
snmp_ifType_softwareLoopback,
snmp_ifType_eon, /* CLNP over IP [11] */
snmp_ifType_ethernet_3Mbit,
snmp_ifType_nsip, /* XNS over IP */
snmp_ifType_slip, /* generic SLIP */
snmp_ifType_ultra, /* ULTRA technologies */
snmp_ifType_ds3, /* T-3 */
snmp_ifType_sip, /* SMDS */
snmp_ifType_frame_relay
};
#if LWIP_SNMP /* don't build if not configured for use in lwipopts.h */
/** SNMP "sysuptime" Interval */
#define SNMP_SYSUPTIME_INTERVAL 10
/** fixed maximum length for object identifier type */
#define LWIP_SNMP_OBJ_ID_LEN 32
/** internal object identifier representation */
struct snmp_obj_id
{
u8_t len;
s32_t id[LWIP_SNMP_OBJ_ID_LEN];
};
/* system */
void snmp_set_sysdesr(u8_t* str, u8_t* len);
void snmp_set_sysobjid(struct snmp_obj_id *oid);
void snmp_get_sysobjid_ptr(struct snmp_obj_id **oid);
void snmp_inc_sysuptime(void);
void snmp_add_sysuptime(u32_t value);
void snmp_get_sysuptime(u32_t *value);
void snmp_set_syscontact(u8_t *ocstr, u8_t *ocstrlen);
void snmp_set_sysname(u8_t *ocstr, u8_t *ocstrlen);
void snmp_set_syslocation(u8_t *ocstr, u8_t *ocstrlen);
/* network interface */
void snmp_add_ifinoctets(struct netif *ni, u32_t value);
void snmp_inc_ifinucastpkts(struct netif *ni);
void snmp_inc_ifinnucastpkts(struct netif *ni);
void snmp_inc_ifindiscards(struct netif *ni);
void snmp_add_ifoutoctets(struct netif *ni, u32_t value);
void snmp_inc_ifoutucastpkts(struct netif *ni);
void snmp_inc_ifoutnucastpkts(struct netif *ni);
void snmp_inc_ifoutdiscards(struct netif *ni);
void snmp_inc_iflist(void);
void snmp_dec_iflist(void);
/* ARP (for atTable and ipNetToMediaTable) */
void snmp_insert_arpidx_tree(struct netif *ni, ip_addr_t *ip);
void snmp_delete_arpidx_tree(struct netif *ni, ip_addr_t *ip);
/* IP */
void snmp_inc_ipinreceives(void);
void snmp_inc_ipinhdrerrors(void);
void snmp_inc_ipinaddrerrors(void);
void snmp_inc_ipforwdatagrams(void);
void snmp_inc_ipinunknownprotos(void);
void snmp_inc_ipindiscards(void);
void snmp_inc_ipindelivers(void);
void snmp_inc_ipoutrequests(void);
void snmp_inc_ipoutdiscards(void);
void snmp_inc_ipoutnoroutes(void);
void snmp_inc_ipreasmreqds(void);
void snmp_inc_ipreasmoks(void);
void snmp_inc_ipreasmfails(void);
void snmp_inc_ipfragoks(void);
void snmp_inc_ipfragfails(void);
void snmp_inc_ipfragcreates(void);
void snmp_inc_iproutingdiscards(void);
void snmp_insert_ipaddridx_tree(struct netif *ni);
void snmp_delete_ipaddridx_tree(struct netif *ni);
void snmp_insert_iprteidx_tree(u8_t dflt, struct netif *ni);
void snmp_delete_iprteidx_tree(u8_t dflt, struct netif *ni);
/* ICMP */
void snmp_inc_icmpinmsgs(void);
void snmp_inc_icmpinerrors(void);
void snmp_inc_icmpindestunreachs(void);
void snmp_inc_icmpintimeexcds(void);
void snmp_inc_icmpinparmprobs(void);
void snmp_inc_icmpinsrcquenchs(void);
void snmp_inc_icmpinredirects(void);
void snmp_inc_icmpinechos(void);
void snmp_inc_icmpinechoreps(void);
void snmp_inc_icmpintimestamps(void);
void snmp_inc_icmpintimestampreps(void);
void snmp_inc_icmpinaddrmasks(void);
void snmp_inc_icmpinaddrmaskreps(void);
void snmp_inc_icmpoutmsgs(void);
void snmp_inc_icmpouterrors(void);
void snmp_inc_icmpoutdestunreachs(void);
void snmp_inc_icmpouttimeexcds(void);
void snmp_inc_icmpoutparmprobs(void);
void snmp_inc_icmpoutsrcquenchs(void);
void snmp_inc_icmpoutredirects(void);
void snmp_inc_icmpoutechos(void);
void snmp_inc_icmpoutechoreps(void);
void snmp_inc_icmpouttimestamps(void);
void snmp_inc_icmpouttimestampreps(void);
void snmp_inc_icmpoutaddrmasks(void);
void snmp_inc_icmpoutaddrmaskreps(void);
/* TCP */
void snmp_inc_tcpactiveopens(void);
void snmp_inc_tcppassiveopens(void);
void snmp_inc_tcpattemptfails(void);
void snmp_inc_tcpestabresets(void);
void snmp_inc_tcpinsegs(void);
void snmp_inc_tcpoutsegs(void);
void snmp_inc_tcpretranssegs(void);
void snmp_inc_tcpinerrs(void);
void snmp_inc_tcpoutrsts(void);
/* UDP */
void snmp_inc_udpindatagrams(void);
void snmp_inc_udpnoports(void);
void snmp_inc_udpinerrors(void);
void snmp_inc_udpoutdatagrams(void);
void snmp_insert_udpidx_tree(struct udp_pcb *pcb);
void snmp_delete_udpidx_tree(struct udp_pcb *pcb);
/* SNMP */
void snmp_inc_snmpinpkts(void);
void snmp_inc_snmpoutpkts(void);
void snmp_inc_snmpinbadversions(void);
void snmp_inc_snmpinbadcommunitynames(void);
void snmp_inc_snmpinbadcommunityuses(void);
void snmp_inc_snmpinasnparseerrs(void);
void snmp_inc_snmpintoobigs(void);
void snmp_inc_snmpinnosuchnames(void);
void snmp_inc_snmpinbadvalues(void);
void snmp_inc_snmpinreadonlys(void);
void snmp_inc_snmpingenerrs(void);
void snmp_add_snmpintotalreqvars(u8_t value);
void snmp_add_snmpintotalsetvars(u8_t value);
void snmp_inc_snmpingetrequests(void);
void snmp_inc_snmpingetnexts(void);
void snmp_inc_snmpinsetrequests(void);
void snmp_inc_snmpingetresponses(void);
void snmp_inc_snmpintraps(void);
void snmp_inc_snmpouttoobigs(void);
void snmp_inc_snmpoutnosuchnames(void);
void snmp_inc_snmpoutbadvalues(void);
void snmp_inc_snmpoutgenerrs(void);
void snmp_inc_snmpoutgetrequests(void);
void snmp_inc_snmpoutgetnexts(void);
void snmp_inc_snmpoutsetrequests(void);
void snmp_inc_snmpoutgetresponses(void);
void snmp_inc_snmpouttraps(void);
void snmp_get_snmpgrpid_ptr(struct snmp_obj_id **oid);
void snmp_set_snmpenableauthentraps(u8_t *value);
void snmp_get_snmpenableauthentraps(u8_t *value);
/* LWIP_SNMP support not available */
/* define everything to be empty */
#else
/* system */
#define snmp_set_sysdesr(str, len)
#define snmp_set_sysobjid(oid);
#define snmp_get_sysobjid_ptr(oid)
#define snmp_inc_sysuptime()
#define snmp_add_sysuptime(value)
#define snmp_get_sysuptime(value)
#define snmp_set_syscontact(ocstr, ocstrlen);
#define snmp_set_sysname(ocstr, ocstrlen);
#define snmp_set_syslocation(ocstr, ocstrlen);
/* network interface */
#define snmp_add_ifinoctets(ni,value)
#define snmp_inc_ifinucastpkts(ni)
#define snmp_inc_ifinnucastpkts(ni)
#define snmp_inc_ifindiscards(ni)
#define snmp_add_ifoutoctets(ni,value)
#define snmp_inc_ifoutucastpkts(ni)
#define snmp_inc_ifoutnucastpkts(ni)
#define snmp_inc_ifoutdiscards(ni)
#define snmp_inc_iflist()
#define snmp_dec_iflist()
/* ARP */
#define snmp_insert_arpidx_tree(ni,ip)
#define snmp_delete_arpidx_tree(ni,ip)
/* IP */
#define snmp_inc_ipinreceives()
#define snmp_inc_ipinhdrerrors()
#define snmp_inc_ipinaddrerrors()
#define snmp_inc_ipforwdatagrams()
#define snmp_inc_ipinunknownprotos()
#define snmp_inc_ipindiscards()
#define snmp_inc_ipindelivers()
#define snmp_inc_ipoutrequests()
#define snmp_inc_ipoutdiscards()
#define snmp_inc_ipoutnoroutes()
#define snmp_inc_ipreasmreqds()
#define snmp_inc_ipreasmoks()
#define snmp_inc_ipreasmfails()
#define snmp_inc_ipfragoks()
#define snmp_inc_ipfragfails()
#define snmp_inc_ipfragcreates()
#define snmp_inc_iproutingdiscards()
#define snmp_insert_ipaddridx_tree(ni)
#define snmp_delete_ipaddridx_tree(ni)
#define snmp_insert_iprteidx_tree(dflt, ni)
#define snmp_delete_iprteidx_tree(dflt, ni)
/* ICMP */
#define snmp_inc_icmpinmsgs()
#define snmp_inc_icmpinerrors()
#define snmp_inc_icmpindestunreachs()
#define snmp_inc_icmpintimeexcds()
#define snmp_inc_icmpinparmprobs()
#define snmp_inc_icmpinsrcquenchs()
#define snmp_inc_icmpinredirects()
#define snmp_inc_icmpinechos()
#define snmp_inc_icmpinechoreps()
#define snmp_inc_icmpintimestamps()
#define snmp_inc_icmpintimestampreps()
#define snmp_inc_icmpinaddrmasks()
#define snmp_inc_icmpinaddrmaskreps()
#define snmp_inc_icmpoutmsgs()
#define snmp_inc_icmpouterrors()
#define snmp_inc_icmpoutdestunreachs()
#define snmp_inc_icmpouttimeexcds()
#define snmp_inc_icmpoutparmprobs()
#define snmp_inc_icmpoutsrcquenchs()
#define snmp_inc_icmpoutredirects()
#define snmp_inc_icmpoutechos()
#define snmp_inc_icmpoutechoreps()
#define snmp_inc_icmpouttimestamps()
#define snmp_inc_icmpouttimestampreps()
#define snmp_inc_icmpoutaddrmasks()
#define snmp_inc_icmpoutaddrmaskreps()
/* TCP */
#define snmp_inc_tcpactiveopens()
#define snmp_inc_tcppassiveopens()
#define snmp_inc_tcpattemptfails()
#define snmp_inc_tcpestabresets()
#define snmp_inc_tcpinsegs()
#define snmp_inc_tcpoutsegs()
#define snmp_inc_tcpretranssegs()
#define snmp_inc_tcpinerrs()
#define snmp_inc_tcpoutrsts()
/* UDP */
#define snmp_inc_udpindatagrams()
#define snmp_inc_udpnoports()
#define snmp_inc_udpinerrors()
#define snmp_inc_udpoutdatagrams()
#define snmp_insert_udpidx_tree(pcb)
#define snmp_delete_udpidx_tree(pcb)
/* SNMP */
#define snmp_inc_snmpinpkts()
#define snmp_inc_snmpoutpkts()
#define snmp_inc_snmpinbadversions()
#define snmp_inc_snmpinbadcommunitynames()
#define snmp_inc_snmpinbadcommunityuses()
#define snmp_inc_snmpinasnparseerrs()
#define snmp_inc_snmpintoobigs()
#define snmp_inc_snmpinnosuchnames()
#define snmp_inc_snmpinbadvalues()
#define snmp_inc_snmpinreadonlys()
#define snmp_inc_snmpingenerrs()
#define snmp_add_snmpintotalreqvars(value)
#define snmp_add_snmpintotalsetvars(value)
#define snmp_inc_snmpingetrequests()
#define snmp_inc_snmpingetnexts()
#define snmp_inc_snmpinsetrequests()
#define snmp_inc_snmpingetresponses()
#define snmp_inc_snmpintraps()
#define snmp_inc_snmpouttoobigs()
#define snmp_inc_snmpoutnosuchnames()
#define snmp_inc_snmpoutbadvalues()
#define snmp_inc_snmpoutgenerrs()
#define snmp_inc_snmpoutgetrequests()
#define snmp_inc_snmpoutgetnexts()
#define snmp_inc_snmpoutsetrequests()
#define snmp_inc_snmpoutgetresponses()
#define snmp_inc_snmpouttraps()
#define snmp_get_snmpgrpid_ptr(oid)
#define snmp_set_snmpenableauthentraps(value)
#define snmp_get_snmpenableauthentraps(value)
#endif /* LWIP_SNMP */
#ifdef __cplusplus
}
#endif
#endif /* __LWIP_SNMP_H__ */

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/**
* @file
* Abstract Syntax Notation One (ISO 8824, 8825) codec.
*/
/*
* Copyright (c) 2006 Axon Digital Design B.V., The Netherlands.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGE.
*
* Author: Christiaan Simons <christiaan.simons@axon.tv>
*/
#ifndef __LWIP_SNMP_ASN1_H__
#define __LWIP_SNMP_ASN1_H__
#include "lwip/opt.h"
#include "lwip/err.h"
#include "lwip/pbuf.h"
#include "lwip/snmp.h"
#if LWIP_SNMP
#ifdef __cplusplus
extern "C" {
#endif
#define SNMP_ASN1_UNIV (0) /* (!0x80 | !0x40) */
#define SNMP_ASN1_APPLIC (0x40) /* (!0x80 | 0x40) */
#define SNMP_ASN1_CONTXT (0x80) /* ( 0x80 | !0x40) */
#define SNMP_ASN1_CONSTR (0x20) /* ( 0x20) */
#define SNMP_ASN1_PRIMIT (0) /* (!0x20) */
/* universal tags */
#define SNMP_ASN1_INTEG 2
#define SNMP_ASN1_OC_STR 4
#define SNMP_ASN1_NUL 5
#define SNMP_ASN1_OBJ_ID 6
#define SNMP_ASN1_SEQ 16
/* application specific (SNMP) tags */
#define SNMP_ASN1_IPADDR 0 /* octet string size(4) */
#define SNMP_ASN1_COUNTER 1 /* u32_t */
#define SNMP_ASN1_GAUGE 2 /* u32_t */
#define SNMP_ASN1_TIMETICKS 3 /* u32_t */
#define SNMP_ASN1_OPAQUE 4 /* octet string */
/* context specific (SNMP) tags */
#define SNMP_ASN1_PDU_GET_REQ 0
#define SNMP_ASN1_PDU_GET_NEXT_REQ 1
#define SNMP_ASN1_PDU_GET_RESP 2
#define SNMP_ASN1_PDU_SET_REQ 3
#define SNMP_ASN1_PDU_TRAP 4
err_t snmp_asn1_dec_type(struct pbuf *p, u16_t ofs, u8_t *type);
err_t snmp_asn1_dec_length(struct pbuf *p, u16_t ofs, u8_t *octets_used, u16_t *length);
err_t snmp_asn1_dec_u32t(struct pbuf *p, u16_t ofs, u16_t len, u32_t *value);
err_t snmp_asn1_dec_s32t(struct pbuf *p, u16_t ofs, u16_t len, s32_t *value);
err_t snmp_asn1_dec_oid(struct pbuf *p, u16_t ofs, u16_t len, struct snmp_obj_id *oid);
err_t snmp_asn1_dec_raw(struct pbuf *p, u16_t ofs, u16_t len, u16_t raw_len, u8_t *raw);
void snmp_asn1_enc_length_cnt(u16_t length, u8_t *octets_needed);
void snmp_asn1_enc_u32t_cnt(u32_t value, u16_t *octets_needed);
void snmp_asn1_enc_s32t_cnt(s32_t value, u16_t *octets_needed);
void snmp_asn1_enc_oid_cnt(u8_t ident_len, s32_t *ident, u16_t *octets_needed);
err_t snmp_asn1_enc_type(struct pbuf *p, u16_t ofs, u8_t type);
err_t snmp_asn1_enc_length(struct pbuf *p, u16_t ofs, u16_t length);
err_t snmp_asn1_enc_u32t(struct pbuf *p, u16_t ofs, u16_t octets_needed, u32_t value);
err_t snmp_asn1_enc_s32t(struct pbuf *p, u16_t ofs, u16_t octets_needed, s32_t value);
err_t snmp_asn1_enc_oid(struct pbuf *p, u16_t ofs, u8_t ident_len, s32_t *ident);
err_t snmp_asn1_enc_raw(struct pbuf *p, u16_t ofs, u16_t raw_len, u8_t *raw);
#ifdef __cplusplus
}
#endif
#endif /* LWIP_SNMP */
#endif /* __LWIP_SNMP_ASN1_H__ */

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/**
* @file
* SNMP Agent message handling structures.
*/
/*
* Copyright (c) 2006 Axon Digital Design B.V., The Netherlands.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGE.
*
* Author: Christiaan Simons <christiaan.simons@axon.tv>
*/
#ifndef __LWIP_SNMP_MSG_H__
#define __LWIP_SNMP_MSG_H__
#include "lwip/opt.h"
#include "lwip/snmp.h"
#include "lwip/snmp_structs.h"
#include "lwip/ip_addr.h"
#include "lwip/err.h"
#if LWIP_SNMP
#if SNMP_PRIVATE_MIB
/* When using a private MIB, you have to create a file 'private_mib.h' that contains
* a 'struct mib_array_node mib_private' which contains your MIB. */
#include "private_mib.h"
#endif
#ifdef __cplusplus
extern "C" {
#endif
/* The listen port of the SNMP agent. Clients have to make their requests to
this port. Most standard clients won't work if you change this! */
#ifndef SNMP_IN_PORT
#define SNMP_IN_PORT 161
#endif
/* The remote port the SNMP agent sends traps to. Most standard trap sinks won't
work if you change this! */
#ifndef SNMP_TRAP_PORT
#define SNMP_TRAP_PORT 162
#endif
#define SNMP_ES_NOERROR 0
#define SNMP_ES_TOOBIG 1
#define SNMP_ES_NOSUCHNAME 2
#define SNMP_ES_BADVALUE 3
#define SNMP_ES_READONLY 4
#define SNMP_ES_GENERROR 5
#define SNMP_GENTRAP_COLDSTART 0
#define SNMP_GENTRAP_WARMSTART 1
#define SNMP_GENTRAP_AUTHFAIL 4
#define SNMP_GENTRAP_ENTERPRISESPC 6
struct snmp_varbind
{
/* next pointer, NULL for last in list */
struct snmp_varbind *next;
/* previous pointer, NULL for first in list */
struct snmp_varbind *prev;
/* object identifier length (in s32_t) */
u8_t ident_len;
/* object identifier array */
s32_t *ident;
/* object value ASN1 type */
u8_t value_type;
/* object value length (in u8_t) */
u8_t value_len;
/* object value */
void *value;
/* encoding varbind seq length length */
u8_t seqlenlen;
/* encoding object identifier length length */
u8_t olenlen;
/* encoding object value length length */
u8_t vlenlen;
/* encoding varbind seq length */
u16_t seqlen;
/* encoding object identifier length */
u16_t olen;
/* encoding object value length */
u16_t vlen;
};
struct snmp_varbind_root
{
struct snmp_varbind *head;
struct snmp_varbind *tail;
/* number of variable bindings in list */
u8_t count;
/* encoding varbind-list seq length length */
u8_t seqlenlen;
/* encoding varbind-list seq length */
u16_t seqlen;
};
/** output response message header length fields */
struct snmp_resp_header_lengths
{
/* encoding error-index length length */
u8_t erridxlenlen;
/* encoding error-status length length */
u8_t errstatlenlen;
/* encoding request id length length */
u8_t ridlenlen;
/* encoding pdu length length */
u8_t pdulenlen;
/* encoding community length length */
u8_t comlenlen;
/* encoding version length length */
u8_t verlenlen;
/* encoding sequence length length */
u8_t seqlenlen;
/* encoding error-index length */
u16_t erridxlen;
/* encoding error-status length */
u16_t errstatlen;
/* encoding request id length */
u16_t ridlen;
/* encoding pdu length */
u16_t pdulen;
/* encoding community length */
u16_t comlen;
/* encoding version length */
u16_t verlen;
/* encoding sequence length */
u16_t seqlen;
};
/** output response message header length fields */
struct snmp_trap_header_lengths
{
/* encoding timestamp length length */
u8_t tslenlen;
/* encoding specific-trap length length */
u8_t strplenlen;
/* encoding generic-trap length length */
u8_t gtrplenlen;
/* encoding agent-addr length length */
u8_t aaddrlenlen;
/* encoding enterprise-id length length */
u8_t eidlenlen;
/* encoding pdu length length */
u8_t pdulenlen;
/* encoding community length length */
u8_t comlenlen;
/* encoding version length length */
u8_t verlenlen;
/* encoding sequence length length */
u8_t seqlenlen;
/* encoding timestamp length */
u16_t tslen;
/* encoding specific-trap length */
u16_t strplen;
/* encoding generic-trap length */
u16_t gtrplen;
/* encoding agent-addr length */
u16_t aaddrlen;
/* encoding enterprise-id length */
u16_t eidlen;
/* encoding pdu length */
u16_t pdulen;
/* encoding community length */
u16_t comlen;
/* encoding version length */
u16_t verlen;
/* encoding sequence length */
u16_t seqlen;
};
/* Accepting new SNMP messages. */
#define SNMP_MSG_EMPTY 0
/* Search for matching object for variable binding. */
#define SNMP_MSG_SEARCH_OBJ 1
/* Perform SNMP operation on in-memory object.
Pass-through states, for symmetry only. */
#define SNMP_MSG_INTERNAL_GET_OBJDEF 2
#define SNMP_MSG_INTERNAL_GET_VALUE 3
#define SNMP_MSG_INTERNAL_SET_TEST 4
#define SNMP_MSG_INTERNAL_GET_OBJDEF_S 5
#define SNMP_MSG_INTERNAL_SET_VALUE 6
/* Perform SNMP operation on object located externally.
In theory this could be used for building a proxy agent.
Practical use is for an enterprise spc. app. gateway. */
#define SNMP_MSG_EXTERNAL_GET_OBJDEF 7
#define SNMP_MSG_EXTERNAL_GET_VALUE 8
#define SNMP_MSG_EXTERNAL_SET_TEST 9
#define SNMP_MSG_EXTERNAL_GET_OBJDEF_S 10
#define SNMP_MSG_EXTERNAL_SET_VALUE 11
#define SNMP_COMMUNITY_STR_LEN 64
struct snmp_msg_pstat
{
/* lwIP local port (161) binding */
struct udp_pcb *pcb;
/* source IP address */
ip_addr_t sip;
/* source UDP port */
u16_t sp;
/* request type */
u8_t rt;
/* request ID */
s32_t rid;
/* error status */
s32_t error_status;
/* error index */
s32_t error_index;
/* community name (zero terminated) */
u8_t community[SNMP_COMMUNITY_STR_LEN + 1];
/* community string length (exclusive zero term) */
u8_t com_strlen;
/* one out of MSG_EMPTY, MSG_DEMUX, MSG_INTERNAL, MSG_EXTERNAL_x */
u8_t state;
/* saved arguments for MSG_EXTERNAL_x */
struct mib_external_node *ext_mib_node;
struct snmp_name_ptr ext_name_ptr;
struct obj_def ext_object_def;
struct snmp_obj_id ext_oid;
/* index into input variable binding list */
u8_t vb_idx;
/* ptr into input variable binding list */
struct snmp_varbind *vb_ptr;
/* list of variable bindings from input */
struct snmp_varbind_root invb;
/* list of variable bindings to output */
struct snmp_varbind_root outvb;
/* output response lengths used in ASN encoding */
struct snmp_resp_header_lengths rhl;
};
struct snmp_msg_trap
{
/* lwIP local port (161) binding */
struct udp_pcb *pcb;
/* destination IP address in network order */
ip_addr_t dip;
/* source enterprise ID (sysObjectID) */
struct snmp_obj_id *enterprise;
/* source IP address, raw network order format */
u8_t sip_raw[4];
/* generic trap code */
u32_t gen_trap;
/* specific trap code */
u32_t spc_trap;
/* timestamp */
u32_t ts;
/* list of variable bindings to output */
struct snmp_varbind_root outvb;
/* output trap lengths used in ASN encoding */
struct snmp_trap_header_lengths thl;
};
/** Agent Version constant, 0 = v1 oddity */
extern const s32_t snmp_version;
/** Agent default "public" community string */
extern const char snmp_publiccommunity[7];
extern struct snmp_msg_trap trap_msg;
/** Agent setup, start listening to port 161. */
void snmp_init(void);
void snmp_trap_dst_enable(u8_t dst_idx, u8_t enable);
void snmp_trap_dst_ip_set(u8_t dst_idx, ip_addr_t *dst);
/** Varbind-list functions. */
struct snmp_varbind* snmp_varbind_alloc(struct snmp_obj_id *oid, u8_t type, u8_t len);
void snmp_varbind_free(struct snmp_varbind *vb);
void snmp_varbind_list_free(struct snmp_varbind_root *root);
void snmp_varbind_tail_add(struct snmp_varbind_root *root, struct snmp_varbind *vb);
struct snmp_varbind* snmp_varbind_tail_remove(struct snmp_varbind_root *root);
/** Handle an internal (recv) or external (private response) event. */
void snmp_msg_event(u8_t request_id);
err_t snmp_send_response(struct snmp_msg_pstat *m_stat);
err_t snmp_send_trap(s8_t generic_trap, struct snmp_obj_id *eoid, s32_t specific_trap);
void snmp_coldstart_trap(void);
void snmp_authfail_trap(void);
#ifdef __cplusplus
}
#endif
#endif /* LWIP_SNMP */
#endif /* __LWIP_SNMP_MSG_H__ */

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/**
* @file
* Generic MIB tree structures.
*
* @todo namespace prefixes
*/
/*
* Copyright (c) 2006 Axon Digital Design B.V., The Netherlands.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGE.
*
* Author: Christiaan Simons <christiaan.simons@axon.tv>
*/
#ifndef __LWIP_SNMP_STRUCTS_H__
#define __LWIP_SNMP_STRUCTS_H__
#include "lwip/opt.h"
#if LWIP_SNMP /* don't build if not configured for use in lwipopts.h */
#include "lwip/snmp.h"
#if SNMP_PRIVATE_MIB
/* When using a private MIB, you have to create a file 'private_mib.h' that contains
* a 'struct mib_array_node mib_private' which contains your MIB. */
#include "private_mib.h"
#endif
#ifdef __cplusplus
extern "C" {
#endif
/* MIB object instance */
#define MIB_OBJECT_NONE 0
#define MIB_OBJECT_SCALAR 1
#define MIB_OBJECT_TAB 2
/* MIB access types */
#define MIB_ACCESS_READ 1
#define MIB_ACCESS_WRITE 2
/* MIB object access */
#define MIB_OBJECT_READ_ONLY MIB_ACCESS_READ
#define MIB_OBJECT_READ_WRITE (MIB_ACCESS_READ | MIB_ACCESS_WRITE)
#define MIB_OBJECT_WRITE_ONLY MIB_ACCESS_WRITE
#define MIB_OBJECT_NOT_ACCESSIBLE 0
/** object definition returned by (get_object_def)() */
struct obj_def
{
/* MIB_OBJECT_NONE (0), MIB_OBJECT_SCALAR (1), MIB_OBJECT_TAB (2) */
u8_t instance;
/* 0 read-only, 1 read-write, 2 write-only, 3 not-accessible */
u8_t access;
/* ASN type for this object */
u8_t asn_type;
/* value length (host length) */
u16_t v_len;
/* length of instance part of supplied object identifier */
u8_t id_inst_len;
/* instance part of supplied object identifier */
s32_t *id_inst_ptr;
};
struct snmp_name_ptr
{
u8_t ident_len;
s32_t *ident;
};
/** MIB const scalar (.0) node */
#define MIB_NODE_SC 0x01
/** MIB const array node */
#define MIB_NODE_AR 0x02
/** MIB array node (mem_malloced from RAM) */
#define MIB_NODE_RA 0x03
/** MIB list root node (mem_malloced from RAM) */
#define MIB_NODE_LR 0x04
/** MIB node for external objects */
#define MIB_NODE_EX 0x05
/** node "base class" layout, the mandatory fields for a node */
struct mib_node
{
/** returns struct obj_def for the given object identifier */
void (*get_object_def)(u8_t ident_len, s32_t *ident, struct obj_def *od);
/** returns object value for the given object identifier,
@note the caller must allocate at least len bytes for the value */
void (*get_value)(struct obj_def *od, u16_t len, void *value);
/** tests length and/or range BEFORE setting */
u8_t (*set_test)(struct obj_def *od, u16_t len, void *value);
/** sets object value, only to be called when set_test() */
void (*set_value)(struct obj_def *od, u16_t len, void *value);
/** One out of MIB_NODE_AR, MIB_NODE_LR or MIB_NODE_EX */
u8_t node_type;
/* array or max list length */
u16_t maxlength;
};
/** derived node for scalars .0 index */
typedef struct mib_node mib_scalar_node;
/** derived node, points to a fixed size const array
of sub-identifiers plus a 'child' pointer */
struct mib_array_node
{
/* inherited "base class" members */
void (*get_object_def)(u8_t ident_len, s32_t *ident, struct obj_def *od);
void (*get_value)(struct obj_def *od, u16_t len, void *value);
u8_t (*set_test)(struct obj_def *od, u16_t len, void *value);
void (*set_value)(struct obj_def *od, u16_t len, void *value);
u8_t node_type;
u16_t maxlength;
/* additional struct members */
const s32_t *objid;
struct mib_node* const *nptr;
};
/** derived node, points to a fixed size mem_malloced array
of sub-identifiers plus a 'child' pointer */
struct mib_ram_array_node
{
/* inherited "base class" members */
void (*get_object_def)(u8_t ident_len, s32_t *ident, struct obj_def *od);
void (*get_value)(struct obj_def *od, u16_t len, void *value);
u8_t (*set_test)(struct obj_def *od, u16_t len, void *value);
void (*set_value)(struct obj_def *od, u16_t len, void *value);
u8_t node_type;
u16_t maxlength;
/* aditional struct members */
s32_t *objid;
struct mib_node **nptr;
};
struct mib_list_node
{
struct mib_list_node *prev;
struct mib_list_node *next;
s32_t objid;
struct mib_node *nptr;
};
/** derived node, points to a doubly linked list
of sub-identifiers plus a 'child' pointer */
struct mib_list_rootnode
{
/* inherited "base class" members */
void (*get_object_def)(u8_t ident_len, s32_t *ident, struct obj_def *od);
void (*get_value)(struct obj_def *od, u16_t len, void *value);
u8_t (*set_test)(struct obj_def *od, u16_t len, void *value);
void (*set_value)(struct obj_def *od, u16_t len, void *value);
u8_t node_type;
u16_t maxlength;
/* additional struct members */
struct mib_list_node *head;
struct mib_list_node *tail;
/* counts list nodes in list */
u16_t count;
};
/** derived node, has access functions for mib object in external memory or device
using 'tree_level' and 'idx', with a range 0 .. (level_length() - 1) */
struct mib_external_node
{
/* inherited "base class" members */
void (*get_object_def)(u8_t ident_len, s32_t *ident, struct obj_def *od);
void (*get_value)(struct obj_def *od, u16_t len, void *value);
u8_t (*set_test)(struct obj_def *od, u16_t len, void *value);
void (*set_value)(struct obj_def *od, u16_t len, void *value);
u8_t node_type;
u16_t maxlength;
/* additional struct members */
/** points to an external (in memory) record of some sort of addressing
information, passed to and interpreted by the funtions below */
void* addr_inf;
/** tree levels under this node */
u8_t tree_levels;
/** number of objects at this level */
u16_t (*level_length)(void* addr_inf, u8_t level);
/** compares object sub identifier with external id
return zero when equal, nonzero when unequal */
s32_t (*ident_cmp)(void* addr_inf, u8_t level, u16_t idx, s32_t sub_id);
void (*get_objid)(void* addr_inf, u8_t level, u16_t idx, s32_t *sub_id);
/** async Questions */
void (*get_object_def_q)(void* addr_inf, u8_t rid, u8_t ident_len, s32_t *ident);
void (*get_value_q)(u8_t rid, struct obj_def *od);
void (*set_test_q)(u8_t rid, struct obj_def *od);
void (*set_value_q)(u8_t rid, struct obj_def *od, u16_t len, void *value);
/** async Answers */
void (*get_object_def_a)(u8_t rid, u8_t ident_len, s32_t *ident, struct obj_def *od);
void (*get_value_a)(u8_t rid, struct obj_def *od, u16_t len, void *value);
u8_t (*set_test_a)(u8_t rid, struct obj_def *od, u16_t len, void *value);
void (*set_value_a)(u8_t rid, struct obj_def *od, u16_t len, void *value);
/** async Panic Close (agent returns error reply,
e.g. used for external transaction cleanup) */
void (*get_object_def_pc)(u8_t rid, u8_t ident_len, s32_t *ident);
void (*get_value_pc)(u8_t rid, struct obj_def *od);
void (*set_test_pc)(u8_t rid, struct obj_def *od);
void (*set_value_pc)(u8_t rid, struct obj_def *od);
};
/** export MIB tree from mib2.c */
extern const struct mib_array_node internet;
/** dummy function pointers for non-leaf MIB nodes from mib2.c */
void noleafs_get_object_def(u8_t ident_len, s32_t *ident, struct obj_def *od);
void noleafs_get_value(struct obj_def *od, u16_t len, void *value);
u8_t noleafs_set_test(struct obj_def *od, u16_t len, void *value);
void noleafs_set_value(struct obj_def *od, u16_t len, void *value);
void snmp_oidtoip(s32_t *ident, ip_addr_t *ip);
void snmp_iptooid(ip_addr_t *ip, s32_t *ident);
void snmp_ifindextonetif(s32_t ifindex, struct netif **netif);
void snmp_netiftoifindex(struct netif *netif, s32_t *ifidx);
struct mib_list_node* snmp_mib_ln_alloc(s32_t id);
void snmp_mib_ln_free(struct mib_list_node *ln);
struct mib_list_rootnode* snmp_mib_lrn_alloc(void);
void snmp_mib_lrn_free(struct mib_list_rootnode *lrn);
s8_t snmp_mib_node_insert(struct mib_list_rootnode *rn, s32_t objid, struct mib_list_node **insn);
s8_t snmp_mib_node_find(struct mib_list_rootnode *rn, s32_t objid, struct mib_list_node **fn);
struct mib_list_rootnode *snmp_mib_node_delete(struct mib_list_rootnode *rn, struct mib_list_node *n);
struct mib_node* snmp_search_tree(struct mib_node *node, u8_t ident_len, s32_t *ident, struct snmp_name_ptr *np);
struct mib_node* snmp_expand_tree(struct mib_node *node, u8_t ident_len, s32_t *ident, struct snmp_obj_id *oidret);
u8_t snmp_iso_prefix_tst(u8_t ident_len, s32_t *ident);
u8_t snmp_iso_prefix_expand(u8_t ident_len, s32_t *ident, struct snmp_obj_id *oidret);
#ifdef __cplusplus
}
#endif
#endif /* LWIP_SNMP */
#endif /* __LWIP_SNMP_STRUCTS_H__ */

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/*
* Copyright (c) 2001-2004 Swedish Institute of Computer Science.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGE.
*
* This file is part of the lwIP TCP/IP stack.
*
* Author: Adam Dunkels <adam@sics.se>
*
*/
#ifndef __LWIP_SOCKETS_H__
#define __LWIP_SOCKETS_H__
#include "lwip/opt.h"
#if LWIP_SOCKET /* don't build if not configured for use in lwipopts.h */
#include <stddef.h> /* for size_t */
#include "lwip/ip_addr.h"
#include "lwip/inet.h"
#ifdef __cplusplus
extern "C" {
#endif
/* members are in network byte order */
struct sockaddr_in {
u8_t sin_len;
u8_t sin_family;
u16_t sin_port;
struct in_addr sin_addr;
char sin_zero[8];
};
struct sockaddr {
u8_t sa_len;
u8_t sa_family;
char sa_data[14];
};
#ifndef socklen_t
# define socklen_t u32_t
#endif
/* Socket protocol types (TCP/UDP/RAW) */
#define SOCK_STREAM 1
#define SOCK_DGRAM 2
#define SOCK_RAW 3
/*
* Option flags per-socket. These must match the SOF_ flags in ip.h (checked in init.c)
*/
#define SO_DEBUG 0x0001 /* Unimplemented: turn on debugging info recording */
#define SO_ACCEPTCONN 0x0002 /* socket has had listen() */
#define SO_REUSEADDR 0x0004 /* Allow local address reuse */
#define SO_KEEPALIVE 0x0008 /* keep connections alive */
#define SO_DONTROUTE 0x0010 /* Unimplemented: just use interface addresses */
#define SO_BROADCAST 0x0020 /* permit to send and to receive broadcast messages (see IP_SOF_BROADCAST option) */
#define SO_USELOOPBACK 0x0040 /* Unimplemented: bypass hardware when possible */
#define SO_LINGER 0x0080 /* linger on close if data present */
#define SO_OOBINLINE 0x0100 /* Unimplemented: leave received OOB data in line */
#define SO_REUSEPORT 0x0200 /* Unimplemented: allow local address & port reuse */
#define SO_DONTLINGER ((int)(~SO_LINGER))
/*
* Additional options, not kept in so_options.
*/
#define SO_SNDBUF 0x1001 /* Unimplemented: send buffer size */
#define SO_RCVBUF 0x1002 /* receive buffer size */
#define SO_SNDLOWAT 0x1003 /* Unimplemented: send low-water mark */
#define SO_RCVLOWAT 0x1004 /* Unimplemented: receive low-water mark */
#define SO_SNDTIMEO 0x1005 /* Unimplemented: send timeout */
#define SO_RCVTIMEO 0x1006 /* receive timeout */
#define SO_ERROR 0x1007 /* get error status and clear */
#define SO_TYPE 0x1008 /* get socket type */
#define SO_CONTIMEO 0x1009 /* Unimplemented: connect timeout */
#define SO_NO_CHECK 0x100a /* don't create UDP checksum */
/*
* Structure used for manipulating linger option.
*/
struct linger {
int l_onoff; /* option on/off */
int l_linger; /* linger time */
};
/*
* Level number for (get/set)sockopt() to apply to socket itself.
*/
#define SOL_SOCKET 0xfff /* options for socket level */
#define AF_UNSPEC 0
#define AF_INET 2
#define PF_INET AF_INET
#define PF_UNSPEC AF_UNSPEC
#define IPPROTO_IP 0
#define IPPROTO_TCP 6
#define IPPROTO_UDP 17
#define IPPROTO_UDPLITE 136
/* Flags we can use with send and recv. */
#define MSG_PEEK 0x01 /* Peeks at an incoming message */
#define MSG_WAITALL 0x02 /* Unimplemented: Requests that the function block until the full amount of data requested can be returned */
#define MSG_OOB 0x04 /* Unimplemented: Requests out-of-band data. The significance and semantics of out-of-band data are protocol-specific */
#define MSG_DONTWAIT 0x08 /* Nonblocking i/o for this operation only */
#define MSG_MORE 0x10 /* Sender will send more */
/*
* Options for level IPPROTO_IP
*/
#define IP_TOS 1
#define IP_TTL 2
#if LWIP_TCP
/*
* Options for level IPPROTO_TCP
*/
#define TCP_NODELAY 0x01 /* don't delay send to coalesce packets */
#define TCP_KEEPALIVE 0x02 /* send KEEPALIVE probes when idle for pcb->keep_idle milliseconds */
#define TCP_KEEPIDLE 0x03 /* set pcb->keep_idle - Same as TCP_KEEPALIVE, but use seconds for get/setsockopt */
#define TCP_KEEPINTVL 0x04 /* set pcb->keep_intvl - Use seconds for get/setsockopt */
#define TCP_KEEPCNT 0x05 /* set pcb->keep_cnt - Use number of probes sent for get/setsockopt */
#endif /* LWIP_TCP */
#if LWIP_UDP && LWIP_UDPLITE
/*
* Options for level IPPROTO_UDPLITE
*/
#define UDPLITE_SEND_CSCOV 0x01 /* sender checksum coverage */
#define UDPLITE_RECV_CSCOV 0x02 /* minimal receiver checksum coverage */
#endif /* LWIP_UDP && LWIP_UDPLITE*/
#if LWIP_IGMP
/*
* Options and types for UDP multicast traffic handling
*/
#define IP_ADD_MEMBERSHIP 3
#define IP_DROP_MEMBERSHIP 4
#define IP_MULTICAST_TTL 5
#define IP_MULTICAST_IF 6
#define IP_MULTICAST_LOOP 7
typedef struct ip_mreq {
struct in_addr imr_multiaddr; /* IP multicast address of group */
struct in_addr imr_interface; /* local IP address of interface */
} ip_mreq;
#endif /* LWIP_IGMP */
/*
* The Type of Service provides an indication of the abstract
* parameters of the quality of service desired. These parameters are
* to be used to guide the selection of the actual service parameters
* when transmitting a datagram through a particular network. Several
* networks offer service precedence, which somehow treats high
* precedence traffic as more important than other traffic (generally
* by accepting only traffic above a certain precedence at time of high
* load). The major choice is a three way tradeoff between low-delay,
* high-reliability, and high-throughput.
* The use of the Delay, Throughput, and Reliability indications may
* increase the cost (in some sense) of the service. In many networks
* better performance for one of these parameters is coupled with worse
* performance on another. Except for very unusual cases at most two
* of these three indications should be set.
*/
#define IPTOS_TOS_MASK 0x1E
#define IPTOS_TOS(tos) ((tos) & IPTOS_TOS_MASK)
#define IPTOS_LOWDELAY 0x10
#define IPTOS_THROUGHPUT 0x08
#define IPTOS_RELIABILITY 0x04
#define IPTOS_LOWCOST 0x02
#define IPTOS_MINCOST IPTOS_LOWCOST
/*
* The Network Control precedence designation is intended to be used
* within a network only. The actual use and control of that
* designation is up to each network. The Internetwork Control
* designation is intended for use by gateway control originators only.
* If the actual use of these precedence designations is of concern to
* a particular network, it is the responsibility of that network to
* control the access to, and use of, those precedence designations.
*/
#define IPTOS_PREC_MASK 0xe0
#define IPTOS_PREC(tos) ((tos) & IPTOS_PREC_MASK)
#define IPTOS_PREC_NETCONTROL 0xe0
#define IPTOS_PREC_INTERNETCONTROL 0xc0
#define IPTOS_PREC_CRITIC_ECP 0xa0
#define IPTOS_PREC_FLASHOVERRIDE 0x80
#define IPTOS_PREC_FLASH 0x60
#define IPTOS_PREC_IMMEDIATE 0x40
#define IPTOS_PREC_PRIORITY 0x20
#define IPTOS_PREC_ROUTINE 0x00
/*
* Commands for ioctlsocket(), taken from the BSD file fcntl.h.
* lwip_ioctl only supports FIONREAD and FIONBIO, for now
*
* Ioctl's have the command encoded in the lower word,
* and the size of any in or out parameters in the upper
* word. The high 2 bits of the upper word are used
* to encode the in/out status of the parameter; for now
* we restrict parameters to at most 128 bytes.
*/
#if !defined(FIONREAD) || !defined(FIONBIO)
#define IOCPARM_MASK 0x7fU /* parameters must be < 128 bytes */
#define IOC_VOID 0x20000000UL /* no parameters */
#define IOC_OUT 0x40000000UL /* copy out parameters */
#define IOC_IN 0x80000000UL /* copy in parameters */
#define IOC_INOUT (IOC_IN|IOC_OUT)
/* 0x20000000 distinguishes new &
old ioctl's */
#define _IO(x,y) (IOC_VOID|((x)<<8)|(y))
#define _IOR(x,y,t) (IOC_OUT|(((long)sizeof(t)&IOCPARM_MASK)<<16)|((x)<<8)|(y))
#define _IOW(x,y,t) (IOC_IN|(((long)sizeof(t)&IOCPARM_MASK)<<16)|((x)<<8)|(y))
#endif /* !defined(FIONREAD) || !defined(FIONBIO) */
#ifndef FIONREAD
#define FIONREAD _IOR('f', 127, unsigned long) /* get # bytes to read */
#endif
#ifndef FIONBIO
#define FIONBIO _IOW('f', 126, unsigned long) /* set/clear non-blocking i/o */
#endif
/* Socket I/O Controls: unimplemented */
#ifndef SIOCSHIWAT
#define SIOCSHIWAT _IOW('s', 0, unsigned long) /* set high watermark */
#define SIOCGHIWAT _IOR('s', 1, unsigned long) /* get high watermark */
#define SIOCSLOWAT _IOW('s', 2, unsigned long) /* set low watermark */
#define SIOCGLOWAT _IOR('s', 3, unsigned long) /* get low watermark */
#define SIOCATMARK _IOR('s', 7, unsigned long) /* at oob mark? */
#endif
/* commands for fnctl */
#ifndef F_GETFL
#define F_GETFL 3
#endif
#ifndef F_SETFL
#define F_SETFL 4
#endif
/* File status flags and file access modes for fnctl,
these are bits in an int. */
#ifndef O_NONBLOCK
#define O_NONBLOCK 1 /* nonblocking I/O */
#endif
#ifndef O_NDELAY
#define O_NDELAY 1 /* same as O_NONBLOCK, for compatibility */
#endif
#ifndef SHUT_RD
#define SHUT_RD 0
#define SHUT_WR 1
#define SHUT_RDWR 2
#endif
/* FD_SET used for lwip_select */
#ifndef FD_SET
#undef FD_SETSIZE
/* Make FD_SETSIZE match NUM_SOCKETS in socket.c */
#define FD_SETSIZE MEMP_NUM_NETCONN
#define FD_SET(n, p) ((p)->fd_bits[(n)/8] |= (1 << ((n) & 7)))
#define FD_CLR(n, p) ((p)->fd_bits[(n)/8] &= ~(1 << ((n) & 7)))
#define FD_ISSET(n,p) ((p)->fd_bits[(n)/8] & (1 << ((n) & 7)))
#define FD_ZERO(p) memset((void*)(p),0,sizeof(*(p)))
typedef struct fd_set {
unsigned char fd_bits [(FD_SETSIZE+7)/8];
} fd_set;
#endif /* FD_SET */
/** LWIP_TIMEVAL_PRIVATE: if you want to use the struct timeval provided
* by your system, set this to 0 and include <sys/time.h> in cc.h */
#ifndef LWIP_TIMEVAL_PRIVATE
#define LWIP_TIMEVAL_PRIVATE 1
#endif
#if LWIP_TIMEVAL_PRIVATE
struct timeval {
long tv_sec; /* seconds */
long tv_usec; /* and microseconds */
};
#endif /* LWIP_TIMEVAL_PRIVATE */
void lwip_socket_init(void);
int lwip_accept(int s, struct sockaddr *addr, socklen_t *addrlen);
int lwip_bind(int s, const struct sockaddr *name, socklen_t namelen);
int lwip_shutdown(int s, int how);
int lwip_getpeername (int s, struct sockaddr *name, socklen_t *namelen);
int lwip_getsockname (int s, struct sockaddr *name, socklen_t *namelen);
int lwip_getsockopt (int s, int level, int optname, void *optval, socklen_t *optlen);
int lwip_setsockopt (int s, int level, int optname, const void *optval, socklen_t optlen);
int lwip_close(int s);
int lwip_connect(int s, const struct sockaddr *name, socklen_t namelen);
int lwip_listen(int s, int backlog);
int lwip_recv(int s, void *mem, size_t len, int flags);
int lwip_read(int s, void *mem, size_t len);
int lwip_recvfrom(int s, void *mem, size_t len, int flags,
struct sockaddr *from, socklen_t *fromlen);
int lwip_send(int s, const void *dataptr, size_t size, int flags);
int lwip_sendto(int s, const void *dataptr, size_t size, int flags,
const struct sockaddr *to, socklen_t tolen);
int lwip_socket(int domain, int type, int protocol);
int lwip_write(int s, const void *dataptr, size_t size);
int lwip_select(int maxfdp1, fd_set *readset, fd_set *writeset, fd_set *exceptset,
struct timeval *timeout);
int lwip_ioctl(int s, long cmd, void *argp);
int lwip_fcntl(int s, int cmd, int val);
#if LWIP_COMPAT_SOCKETS
#define accept(a,b,c) lwip_accept(a,b,c)
#define bind(a,b,c) lwip_bind(a,b,c)
#define shutdown(a,b) lwip_shutdown(a,b)
#define closesocket(s) lwip_close(s)
#define connect(a,b,c) lwip_connect(a,b,c)
#define getsockname(a,b,c) lwip_getsockname(a,b,c)
#define getpeername(a,b,c) lwip_getpeername(a,b,c)
#define setsockopt(a,b,c,d,e) lwip_setsockopt(a,b,c,d,e)
#define getsockopt(a,b,c,d,e) lwip_getsockopt(a,b,c,d,e)
#define listen(a,b) lwip_listen(a,b)
#define recv(a,b,c,d) lwip_recv(a,b,c,d)
#define recvfrom(a,b,c,d,e,f) lwip_recvfrom(a,b,c,d,e,f)
#define send(a,b,c,d) lwip_send(a,b,c,d)
#define sendto(a,b,c,d,e,f) lwip_sendto(a,b,c,d,e,f)
#define socket(a,b,c) lwip_socket(a,b,c)
#define select(a,b,c,d,e) lwip_select(a,b,c,d,e)
#define ioctlsocket(a,b,c) lwip_ioctl(a,b,c)
#if LWIP_POSIX_SOCKETS_IO_NAMES
#define read(a,b,c) lwip_read(a,b,c)
#define write(a,b,c) lwip_write(a,b,c)
#define close(s) lwip_close(s)
#endif /* LWIP_POSIX_SOCKETS_IO_NAMES */
#endif /* LWIP_COMPAT_SOCKETS */
#ifdef __cplusplus
}
#endif
#endif /* LWIP_SOCKET */
#endif /* __LWIP_SOCKETS_H__ */

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/*
* Copyright (c) 2001-2004 Swedish Institute of Computer Science.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGE.
*
* This file is part of the lwIP TCP/IP stack.
*
* Author: Adam Dunkels <adam@sics.se>
*
*/
#ifndef __LWIP_STATS_H__
#define __LWIP_STATS_H__
#include "lwip/opt.h"
#include "lwip/mem.h"
#include "lwip/memp.h"
#ifdef __cplusplus
extern "C" {
#endif
#if LWIP_STATS
#ifndef LWIP_STATS_LARGE
#define LWIP_STATS_LARGE 0
#endif
#if LWIP_STATS_LARGE
#define STAT_COUNTER u32_t
#define STAT_COUNTER_F U32_F
#else
#define STAT_COUNTER u16_t
#define STAT_COUNTER_F U16_F
#endif
struct stats_proto {
STAT_COUNTER xmit; /* Transmitted packets. */
STAT_COUNTER recv; /* Received packets. */
STAT_COUNTER fw; /* Forwarded packets. */
STAT_COUNTER drop; /* Dropped packets. */
STAT_COUNTER chkerr; /* Checksum error. */
STAT_COUNTER lenerr; /* Invalid length error. */
STAT_COUNTER memerr; /* Out of memory error. */
STAT_COUNTER rterr; /* Routing error. */
STAT_COUNTER proterr; /* Protocol error. */
STAT_COUNTER opterr; /* Error in options. */
STAT_COUNTER err; /* Misc error. */
STAT_COUNTER cachehit;
};
struct stats_igmp {
STAT_COUNTER xmit; /* Transmitted packets. */
STAT_COUNTER recv; /* Received packets. */
STAT_COUNTER drop; /* Dropped packets. */
STAT_COUNTER chkerr; /* Checksum error. */
STAT_COUNTER lenerr; /* Invalid length error. */
STAT_COUNTER memerr; /* Out of memory error. */
STAT_COUNTER proterr; /* Protocol error. */
STAT_COUNTER rx_v1; /* Received v1 frames. */
STAT_COUNTER rx_group; /* Received group-specific queries. */
STAT_COUNTER rx_general; /* Received general queries. */
STAT_COUNTER rx_report; /* Received reports. */
STAT_COUNTER tx_join; /* Sent joins. */
STAT_COUNTER tx_leave; /* Sent leaves. */
STAT_COUNTER tx_report; /* Sent reports. */
};
struct stats_mem {
#ifdef LWIP_DEBUG
const char *name;
#endif /* LWIP_DEBUG */
mem_size_t avail;
mem_size_t used;
mem_size_t max;
STAT_COUNTER err;
STAT_COUNTER illegal;
};
struct stats_syselem {
STAT_COUNTER used;
STAT_COUNTER max;
STAT_COUNTER err;
};
struct stats_sys {
struct stats_syselem sem;
struct stats_syselem mutex;
struct stats_syselem mbox;
};
struct stats_ {
#if LINK_STATS
struct stats_proto link;
#endif
#if ETHARP_STATS
struct stats_proto etharp;
#endif
#if IPFRAG_STATS
struct stats_proto ip_frag;
#endif
#if IP_STATS
struct stats_proto ip;
#endif
#if ICMP_STATS
struct stats_proto icmp;
#endif
#if IGMP_STATS
struct stats_igmp igmp;
#endif
#if UDP_STATS
struct stats_proto udp;
#endif
#if TCP_STATS
struct stats_proto tcp;
#endif
#if MEM_STATS
struct stats_mem mem;
#endif
#if MEMP_STATS
struct stats_mem memp[MEMP_MAX];
#endif
#if SYS_STATS
struct stats_sys sys;
#endif
};
extern struct stats_ lwip_stats;
void stats_init(void)ICACHE_FLASH_ATTR;
#define STATS_INC(x) ++lwip_stats.x
#define STATS_DEC(x) --lwip_stats.x
#define STATS_INC_USED(x, y) do { lwip_stats.x.used += y; \
if (lwip_stats.x.max < lwip_stats.x.used) { \
lwip_stats.x.max = lwip_stats.x.used; \
} \
} while(0)
#else /* LWIP_STATS */
#define stats_init()
#define STATS_INC(x)
#define STATS_DEC(x)
#define STATS_INC_USED(x)
#endif /* LWIP_STATS */
#if TCP_STATS
#define TCP_STATS_INC(x) STATS_INC(x)
#define TCP_STATS_DISPLAY() stats_display_proto(&lwip_stats.tcp, "TCP")
#else
#define TCP_STATS_INC(x)
#define TCP_STATS_DISPLAY()
#endif
#if UDP_STATS
#define UDP_STATS_INC(x) STATS_INC(x)
#define UDP_STATS_DISPLAY() stats_display_proto(&lwip_stats.udp, "UDP")
#else
#define UDP_STATS_INC(x)
#define UDP_STATS_DISPLAY()
#endif
#if ICMP_STATS
#define ICMP_STATS_INC(x) STATS_INC(x)
#define ICMP_STATS_DISPLAY() stats_display_proto(&lwip_stats.icmp, "ICMP")
#else
#define ICMP_STATS_INC(x)
#define ICMP_STATS_DISPLAY()
#endif
#if IGMP_STATS
#define IGMP_STATS_INC(x) STATS_INC(x)
#define IGMP_STATS_DISPLAY() stats_display_igmp(&lwip_stats.igmp)
#else
#define IGMP_STATS_INC(x)
#define IGMP_STATS_DISPLAY()
#endif
#if IP_STATS
#define IP_STATS_INC(x) STATS_INC(x)
#define IP_STATS_DISPLAY() stats_display_proto(&lwip_stats.ip, "IP")
#else
#define IP_STATS_INC(x)
#define IP_STATS_DISPLAY()
#endif
#if IPFRAG_STATS
#define IPFRAG_STATS_INC(x) STATS_INC(x)
#define IPFRAG_STATS_DISPLAY() stats_display_proto(&lwip_stats.ip_frag, "IP_FRAG")
#else
#define IPFRAG_STATS_INC(x)
#define IPFRAG_STATS_DISPLAY()
#endif
#if ETHARP_STATS
#define ETHARP_STATS_INC(x) STATS_INC(x)
#define ETHARP_STATS_DISPLAY() stats_display_proto(&lwip_stats.etharp, "ETHARP")
#else
#define ETHARP_STATS_INC(x)
#define ETHARP_STATS_DISPLAY()
#endif
#if LINK_STATS
#define LINK_STATS_INC(x) STATS_INC(x)
#define LINK_STATS_DISPLAY() stats_display_proto(&lwip_stats.link, "LINK")
#else
#define LINK_STATS_INC(x)
#define LINK_STATS_DISPLAY()
#endif
#if MEM_STATS
#define MEM_STATS_AVAIL(x, y) lwip_stats.mem.x = y
#define MEM_STATS_INC(x) STATS_INC(mem.x)
#define MEM_STATS_INC_USED(x, y) STATS_INC_USED(mem, y)
#define MEM_STATS_DEC_USED(x, y) lwip_stats.mem.x -= y
#define MEM_STATS_DISPLAY() stats_display_mem(&lwip_stats.mem, "HEAP")
#else
#define MEM_STATS_AVAIL(x, y)
#define MEM_STATS_INC(x)
#define MEM_STATS_INC_USED(x, y)
#define MEM_STATS_DEC_USED(x, y)
#define MEM_STATS_DISPLAY()
#endif
#if MEMP_STATS
#define MEMP_STATS_AVAIL(x, i, y) lwip_stats.memp[i].x = y
#define MEMP_STATS_INC(x, i) STATS_INC(memp[i].x)
#define MEMP_STATS_DEC(x, i) STATS_DEC(memp[i].x)
#define MEMP_STATS_INC_USED(x, i) STATS_INC_USED(memp[i], 1)
#define MEMP_STATS_DISPLAY(i) stats_display_memp(&lwip_stats.memp[i], i)
#else
#define MEMP_STATS_AVAIL(x, i, y)
#define MEMP_STATS_INC(x, i)
#define MEMP_STATS_DEC(x, i)
#define MEMP_STATS_INC_USED(x, i)
#define MEMP_STATS_DISPLAY(i)
#endif
#if SYS_STATS
#define SYS_STATS_INC(x) STATS_INC(sys.x)
#define SYS_STATS_DEC(x) STATS_DEC(sys.x)
#define SYS_STATS_INC_USED(x) STATS_INC_USED(sys.x, 1)
#define SYS_STATS_DISPLAY() stats_display_sys(&lwip_stats.sys)
#else
#define SYS_STATS_INC(x)
#define SYS_STATS_DEC(x)
#define SYS_STATS_INC_USED(x)
#define SYS_STATS_DISPLAY()
#endif
/* Display of statistics */
#if LWIP_STATS_DISPLAY
void stats_display(void)ICACHE_FLASH_ATTR;
void stats_display_proto(struct stats_proto *proto, char *name)ICACHE_FLASH_ATTR;
void stats_display_igmp(struct stats_igmp *igmp)ICACHE_FLASH_ATTR;
void stats_display_mem(struct stats_mem *mem, char *name)ICACHE_FLASH_ATTR;
void stats_display_memp(struct stats_mem *mem, int index)ICACHE_FLASH_ATTR;
void stats_display_sys(struct stats_sys *sys)ICACHE_FLASH_ATTR;
#else /* LWIP_STATS_DISPLAY */
#define stats_display()
#define stats_display_proto(proto, name)
#define stats_display_igmp(igmp)
#define stats_display_mem(mem, name)
#define stats_display_memp(mem, index)
#define stats_display_sys(sys)
#endif /* LWIP_STATS_DISPLAY */
#ifdef __cplusplus
}
#endif
#endif /* __LWIP_STATS_H__ */

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/*
* Copyright (c) 2001-2004 Swedish Institute of Computer Science.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGE.
*
* This file is part of the lwIP TCP/IP stack.
*
* Author: Adam Dunkels <adam@sics.se>
*
*/
#ifndef __LWIP_SYS_H__
#define __LWIP_SYS_H__
#include "lwip/opt.h"
#include "eagle_soc.h"
#ifdef __cplusplus
extern "C" {
#endif
#if NO_SYS
/* For a totally minimal and standalone system, we provide null
definitions of the sys_ functions. */
typedef u8_t sys_sem_t;
typedef u8_t sys_mutex_t;
typedef u8_t sys_mbox_t;
#define sys_sem_new(s, c) ERR_OK
#define sys_sem_signal(s)
#define sys_sem_wait(s)
#define sys_arch_sem_wait(s,t)
#define sys_sem_free(s)
#define sys_mutex_new(mu) ERR_OK
#define sys_mutex_lock(mu)
#define sys_mutex_unlock(mu)
#define sys_mutex_free(mu)
#define sys_mbox_new(m, s) ERR_OK
#define sys_mbox_fetch(m,d)
#define sys_mbox_tryfetch(m,d)
#define sys_mbox_post(m,d)
#define sys_mbox_trypost(m,d)
#define sys_mbox_free(m)
#define sys_thread_new(n,t,a,s,p)
#define sys_msleep(t)
#else /* NO_SYS */
/** Return code for timeouts from sys_arch_mbox_fetch and sys_arch_sem_wait */
#define SYS_ARCH_TIMEOUT 0xffffffffUL
/** sys_mbox_tryfetch() returns SYS_MBOX_EMPTY if appropriate.
* For now we use the same magic value, but we allow this to change in future.
*/
#define SYS_MBOX_EMPTY SYS_ARCH_TIMEOUT
#include "lwip/err.h"
#include "arch/sys_arch.h"
/** Function prototype for thread functions */
typedef void (*lwip_thread_fn)(void *arg);
/* Function prototypes for functions to be implemented by platform ports
(in sys_arch.c) */
/* Mutex functions: */
/** Define LWIP_COMPAT_MUTEX if the port has no mutexes and binary semaphores
should be used instead */
#if LWIP_COMPAT_MUTEX
/* for old ports that don't have mutexes: define them to binary semaphores */
#define sys_mutex_t sys_sem_t
#define sys_mutex_new(mutex) sys_sem_new(mutex, 1)
#define sys_mutex_lock(mutex) sys_sem_wait(mutex)
#define sys_mutex_unlock(mutex) sys_sem_signal(mutex)
#define sys_mutex_free(mutex) sys_sem_free(mutex)
#define sys_mutex_valid(mutex) sys_sem_valid(mutex)
#define sys_mutex_set_invalid(mutex) sys_sem_set_invalid(mutex)
#else /* LWIP_COMPAT_MUTEX */
/** Create a new mutex
* @param mutex pointer to the mutex to create
* @return a new mutex */
err_t sys_mutex_new(sys_mutex_t *mutex);
/** Lock a mutex
* @param mutex the mutex to lock */
void sys_mutex_lock(sys_mutex_t *mutex);
/** Unlock a mutex
* @param mutex the mutex to unlock */
void sys_mutex_unlock(sys_mutex_t *mutex);
/** Delete a semaphore
* @param mutex the mutex to delete */
void sys_mutex_free(sys_mutex_t *mutex);
#ifndef sys_mutex_valid
/** Check if a mutex is valid/allocated: return 1 for valid, 0 for invalid */
int sys_mutex_valid(sys_mutex_t *mutex);
#endif
#ifndef sys_mutex_set_invalid
/** Set a mutex invalid so that sys_mutex_valid returns 0 */
void sys_mutex_set_invalid(sys_mutex_t *mutex);
#endif
#endif /* LWIP_COMPAT_MUTEX */
/* Semaphore functions: */
/** Create a new semaphore
* @param sem pointer to the semaphore to create
* @param count initial count of the semaphore
* @return ERR_OK if successful, another err_t otherwise */
err_t sys_sem_new(sys_sem_t *sem, u8_t count);
/** Signals a semaphore
* @param sem the semaphore to signal */
void sys_sem_signal(sys_sem_t *sem);
/** Wait for a semaphore for the specified timeout
* @param sem the semaphore to wait for
* @param timeout timeout in milliseconds to wait (0 = wait forever)
* @return time (in milliseconds) waited for the semaphore
* or SYS_ARCH_TIMEOUT on timeout */
u32_t sys_arch_sem_wait(sys_sem_t *sem, u32_t timeout);
/** Delete a semaphore
* @param sem semaphore to delete */
void sys_sem_free(sys_sem_t *sem);
/** Wait for a semaphore - forever/no timeout */
#define sys_sem_wait(sem) sys_arch_sem_wait(sem, 0)
#ifndef sys_sem_valid
/** Check if a sempahore is valid/allocated: return 1 for valid, 0 for invalid */
int sys_sem_valid(sys_sem_t *sem);
#endif
#ifndef sys_sem_set_invalid
/** Set a semaphore invalid so that sys_sem_valid returns 0 */
void sys_sem_set_invalid(sys_sem_t *sem);
#endif
/* Time functions. */
#ifndef sys_msleep
void sys_msleep(u32_t ms); /* only has a (close to) 1 jiffy resolution. */
#endif
/* Mailbox functions. */
/** Create a new mbox of specified size
* @param mbox pointer to the mbox to create
* @param size (miminum) number of messages in this mbox
* @return ERR_OK if successful, another err_t otherwise */
err_t sys_mbox_new(sys_mbox_t *mbox, int size);
/** Post a message to an mbox - may not fail
* -> blocks if full, only used from tasks not from ISR
* @param mbox mbox to posts the message
* @param msg message to post (ATTENTION: can be NULL) */
void sys_mbox_post(sys_mbox_t *mbox, void *msg);
/** Try to post a message to an mbox - may fail if full or ISR
* @param mbox mbox to posts the message
* @param msg message to post (ATTENTION: can be NULL) */
err_t sys_mbox_trypost(sys_mbox_t *mbox, void *msg);
/** Wait for a new message to arrive in the mbox
* @param mbox mbox to get a message from
* @param msg pointer where the message is stored
* @param timeout maximum time (in milliseconds) to wait for a message
* @return time (in milliseconds) waited for a message, may be 0 if not waited
or SYS_ARCH_TIMEOUT on timeout
* The returned time has to be accurate to prevent timer jitter! */
u32_t sys_arch_mbox_fetch(sys_mbox_t *mbox, void **msg, u32_t timeout);
/* Allow port to override with a macro, e.g. special timout for sys_arch_mbox_fetch() */
#ifndef sys_arch_mbox_tryfetch
/** Wait for a new message to arrive in the mbox
* @param mbox mbox to get a message from
* @param msg pointer where the message is stored
* @param timeout maximum time (in milliseconds) to wait for a message
* @return 0 (milliseconds) if a message has been received
* or SYS_MBOX_EMPTY if the mailbox is empty */
u32_t sys_arch_mbox_tryfetch(sys_mbox_t *mbox, void **msg);
#endif
/** For now, we map straight to sys_arch implementation. */
#define sys_mbox_tryfetch(mbox, msg) sys_arch_mbox_tryfetch(mbox, msg)
/** Delete an mbox
* @param mbox mbox to delete */
void sys_mbox_free(sys_mbox_t *mbox);
#define sys_mbox_fetch(mbox, msg) sys_arch_mbox_fetch(mbox, msg, 0)
#ifndef sys_mbox_valid
/** Check if an mbox is valid/allocated: return 1 for valid, 0 for invalid */
int sys_mbox_valid(sys_mbox_t *mbox);
#endif
#ifndef sys_mbox_set_invalid
/** Set an mbox invalid so that sys_mbox_valid returns 0 */
void sys_mbox_set_invalid(sys_mbox_t *mbox);
#endif
/** The only thread function:
* Creates a new thread
* @param name human-readable name for the thread (used for debugging purposes)
* @param thread thread-function
* @param arg parameter passed to 'thread'
* @param stacksize stack size in bytes for the new thread (may be ignored by ports)
* @param prio priority of the new thread (may be ignored by ports) */
sys_thread_t sys_thread_new(const char *name, lwip_thread_fn thread, void *arg, int stacksize, int prio);
#endif /* NO_SYS */
/* sys_init() must be called before anthing else. */
void sys_init(void)ICACHE_FLASH_ATTR;
#ifndef sys_jiffies
/** Ticks/jiffies since power up. */
u32_t sys_jiffies(void)ICACHE_FLASH_ATTR;
#endif
/** Returns the current time in milliseconds,
* may be the same as sys_jiffies or at least based on it. */
static inline u32_t sys_now(void) ICACHE_FLASH_ATTR;
static inline u32_t sys_now(void)
{
return NOW()/(TIMER_CLK_FREQ/1000);
}
/* Critical Region Protection */
/* These functions must be implemented in the sys_arch.c file.
In some implementations they can provide a more light-weight protection
mechanism than using semaphores. Otherwise semaphores can be used for
implementation */
#ifndef SYS_ARCH_PROTECT
/** SYS_LIGHTWEIGHT_PROT
* define SYS_LIGHTWEIGHT_PROT in lwipopts.h if you want inter-task protection
* for certain critical regions during buffer allocation, deallocation and memory
* allocation and deallocation.
*/
#if SYS_LIGHTWEIGHT_PROT
/** SYS_ARCH_DECL_PROTECT
* declare a protection variable. This macro will default to defining a variable of
* type sys_prot_t. If a particular port needs a different implementation, then
* this macro may be defined in sys_arch.h.
*/
#define SYS_ARCH_DECL_PROTECT(lev) sys_prot_t lev
/** SYS_ARCH_PROTECT
* Perform a "fast" protect. This could be implemented by
* disabling interrupts for an embedded system or by using a semaphore or
* mutex. The implementation should allow calling SYS_ARCH_PROTECT when
* already protected. The old protection level is returned in the variable
* "lev". This macro will default to calling the sys_arch_protect() function
* which should be implemented in sys_arch.c. If a particular port needs a
* different implementation, then this macro may be defined in sys_arch.h
*/
#define SYS_ARCH_PROTECT(lev) lev = sys_arch_protect()
/** SYS_ARCH_UNPROTECT
* Perform a "fast" set of the protection level to "lev". This could be
* implemented by setting the interrupt level to "lev" within the MACRO or by
* using a semaphore or mutex. This macro will default to calling the
* sys_arch_unprotect() function which should be implemented in
* sys_arch.c. If a particular port needs a different implementation, then
* this macro may be defined in sys_arch.h
*/
#define SYS_ARCH_UNPROTECT(lev) sys_arch_unprotect(lev)
sys_prot_t sys_arch_protect(void)ICACHE_FLASH_ATTR;
void sys_arch_unprotect(sys_prot_t pval)ICACHE_FLASH_ATTR;
#else
#define SYS_ARCH_DECL_PROTECT(lev)
#define SYS_ARCH_PROTECT(lev) lev = os_intr_lock() //fix by ives at 2014.3.24
#define SYS_ARCH_UNPROTECT(lev) lev = os_intr_unlock()
#endif /* SYS_LIGHTWEIGHT_PROT */
#endif /* SYS_ARCH_PROTECT */
/*
* Macros to set/get and increase/decrease variables in a thread-safe way.
* Use these for accessing variable that are used from more than one thread.
*/
#ifndef SYS_ARCH_INC
#define SYS_ARCH_INC(var, val) do { \
SYS_ARCH_DECL_PROTECT(old_level); \
SYS_ARCH_PROTECT(old_level); \
var += val; \
SYS_ARCH_UNPROTECT(old_level); \
} while(0)
#endif /* SYS_ARCH_INC */
#ifndef SYS_ARCH_DEC
#define SYS_ARCH_DEC(var, val) do { \
SYS_ARCH_DECL_PROTECT(old_level); \
SYS_ARCH_PROTECT(old_level); \
var -= val; \
SYS_ARCH_UNPROTECT(old_level); \
} while(0)
#endif /* SYS_ARCH_DEC */
#ifndef SYS_ARCH_GET
#define SYS_ARCH_GET(var, ret) do { \
SYS_ARCH_DECL_PROTECT(old_level); \
SYS_ARCH_PROTECT(old_level); \
ret = var; \
SYS_ARCH_UNPROTECT(old_level); \
} while(0)
#endif /* SYS_ARCH_GET */
#ifndef SYS_ARCH_SET
#define SYS_ARCH_SET(var, val) do { \
SYS_ARCH_DECL_PROTECT(old_level); \
SYS_ARCH_PROTECT(old_level); \
var = val; \
SYS_ARCH_UNPROTECT(old_level); \
} while(0)
#endif /* SYS_ARCH_SET */
#ifdef __cplusplus
}
#endif
#endif /* __LWIP_SYS_H__ */

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/*
* Copyright (c) 2001-2004 Swedish Institute of Computer Science.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGE.
*
* This file is part of the lwIP TCP/IP stack.
*
* Author: Adam Dunkels <adam@sics.se>
*
*/
#ifndef __LWIP_TCP_H__
#define __LWIP_TCP_H__
#include "lwip/opt.h"
#if LWIP_TCP /* don't build if not configured for use in lwipopts.h */
#include "lwip/sys.h"
#include "lwip/mem.h"
#include "lwip/pbuf.h"
#include "lwip/ip.h"
#include "lwip/icmp.h"
#include "lwip/err.h"
#ifdef __cplusplus
extern "C" {
#endif
struct tcp_pcb;
/** Function prototype for tcp accept callback functions. Called when a new
* connection can be accepted on a listening pcb.
*
* @param arg Additional argument to pass to the callback function (@see tcp_arg())
* @param newpcb The new connection pcb
* @param err An error code if there has been an error accepting.
* Only return ERR_ABRT if you have called tcp_abort from within the
* callback function!
*/
typedef err_t (*tcp_accept_fn)(void *arg, struct tcp_pcb *newpcb, err_t err);
/** Function prototype for tcp receive callback functions. Called when data has
* been received.
*
* @param arg Additional argument to pass to the callback function (@see tcp_arg())
* @param tpcb The connection pcb which received data
* @param p The received data (or NULL when the connection has been closed!)
* @param err An error code if there has been an error receiving
* Only return ERR_ABRT if you have called tcp_abort from within the
* callback function!
*/
typedef err_t (*tcp_recv_fn)(void *arg, struct tcp_pcb *tpcb,
struct pbuf *p, err_t err);
/** Function prototype for tcp sent callback functions. Called when sent data has
* been acknowledged by the remote side. Use it to free corresponding resources.
* This also means that the pcb has now space available to send new data.
*
* @param arg Additional argument to pass to the callback function (@see tcp_arg())
* @param tpcb The connection pcb for which data has been acknowledged
* @param len The amount of bytes acknowledged
* @return ERR_OK: try to send some data by calling tcp_output
* Only return ERR_ABRT if you have called tcp_abort from within the
* callback function!
*/
typedef err_t (*tcp_sent_fn)(void *arg, struct tcp_pcb *tpcb,
u16_t len);
/** Function prototype for tcp poll callback functions. Called periodically as
* specified by @see tcp_poll.
*
* @param arg Additional argument to pass to the callback function (@see tcp_arg())
* @param tpcb tcp pcb
* @return ERR_OK: try to send some data by calling tcp_output
* Only return ERR_ABRT if you have called tcp_abort from within the
* callback function!
*/
typedef err_t (*tcp_poll_fn)(void *arg, struct tcp_pcb *tpcb);
/** Function prototype for tcp error callback functions. Called when the pcb
* receives a RST or is unexpectedly closed for any other reason.
*
* @note The corresponding pcb is already freed when this callback is called!
*
* @param arg Additional argument to pass to the callback function (@see tcp_arg())
* @param err Error code to indicate why the pcb has been closed
* ERR_ABRT: aborted through tcp_abort or by a TCP timer
* ERR_RST: the connection was reset by the remote host
*/
typedef void (*tcp_err_fn)(void *arg, err_t err);
/** Function prototype for tcp connected callback functions. Called when a pcb
* is connected to the remote side after initiating a connection attempt by
* calling tcp_connect().
*
* @param arg Additional argument to pass to the callback function (@see tcp_arg())
* @param tpcb The connection pcb which is connected
* @param err An unused error code, always ERR_OK currently ;-) TODO!
* Only return ERR_ABRT if you have called tcp_abort from within the
* callback function!
*
* @note When a connection attempt fails, the error callback is currently called!
*/
typedef err_t (*tcp_connected_fn)(void *arg, struct tcp_pcb *tpcb, err_t err);
enum tcp_state {
CLOSED = 0,
LISTEN = 1,
SYN_SENT = 2,
SYN_RCVD = 3,
ESTABLISHED = 4,
FIN_WAIT_1 = 5,
FIN_WAIT_2 = 6,
CLOSE_WAIT = 7,
CLOSING = 8,
LAST_ACK = 9,
TIME_WAIT = 10
};
#if LWIP_CALLBACK_API
/* Function to call when a listener has been connected.
* @param arg user-supplied argument (tcp_pcb.callback_arg)
* @param pcb a new tcp_pcb that now is connected
* @param err an error argument (TODO: that is current always ERR_OK?)
* @return ERR_OK: accept the new connection,
* any other err_t abortsthe new connection
*/
#define DEF_ACCEPT_CALLBACK tcp_accept_fn accept;
#else /* LWIP_CALLBACK_API */
#define DEF_ACCEPT_CALLBACK
#endif /* LWIP_CALLBACK_API */
/**
* members common to struct tcp_pcb and struct tcp_listen_pcb
*/
#define TCP_PCB_COMMON(type) \
type *next; /* for the linked list */ \
enum tcp_state state; /* TCP state */ \
u8_t prio; \
void *callback_arg; \
/* the accept callback for listen- and normal pcbs, if LWIP_CALLBACK_API */ \
DEF_ACCEPT_CALLBACK \
/* ports are in host byte order */ \
u16_t local_port
/* the TCP protocol control block */
struct tcp_pcb {
/** common PCB members */
IP_PCB;
/** protocol specific PCB members */
TCP_PCB_COMMON(struct tcp_pcb);
/* ports are in host byte order */
u16_t remote_port;
u8_t flags;
#define TF_ACK_DELAY ((u8_t)0x01U) /* Delayed ACK. */
#define TF_ACK_NOW ((u8_t)0x02U) /* Immediate ACK. */
#define TF_INFR ((u8_t)0x04U) /* In fast recovery. */
#define TF_TIMESTAMP ((u8_t)0x08U) /* Timestamp option enabled */
#define TF_RXCLOSED ((u8_t)0x10U) /* rx closed by tcp_shutdown */
#define TF_FIN ((u8_t)0x20U) /* Connection was closed locally (FIN segment enqueued). */
#define TF_NODELAY ((u8_t)0x40U) /* Disable Nagle algorithm */
#define TF_NAGLEMEMERR ((u8_t)0x80U) /* nagle enabled, memerr, try to output to prevent delayed ACK to happen */
/* the rest of the fields are in host byte order
as we have to do some math with them */
/* receiver variables */
u32_t rcv_nxt; /* next seqno expected */
u16_t rcv_wnd; /* receiver window available */
u16_t rcv_ann_wnd; /* receiver window to announce */
u32_t rcv_ann_right_edge; /* announced right edge of window */
/* Timers */
u32_t tmr;
u8_t polltmr, pollinterval;
/* Retransmission timer. */
s16_t rtime;
u16_t mss; /* maximum segment size */
/* RTT (round trip time) estimation variables */
u32_t rttest; /* RTT estimate in 500ms ticks */
u32_t rtseq; /* sequence number being timed */
s16_t sa, sv; /* @todo document this */
s16_t rto; /* retransmission time-out */
u8_t nrtx; /* number of retransmissions */
/* fast retransmit/recovery */
u32_t lastack; /* Highest acknowledged seqno. */
u8_t dupacks;
/* congestion avoidance/control variables */
u16_t cwnd;
u16_t ssthresh;
/* sender variables */
u32_t snd_nxt; /* next new seqno to be sent */
u16_t snd_wnd; /* sender window */
u32_t snd_wl1, snd_wl2; /* Sequence and acknowledgement numbers of last
window update. */
u32_t snd_lbb; /* Sequence number of next byte to be buffered. */
u16_t acked;
u16_t snd_buf; /* Available buffer space for sending (in bytes). */
#define TCP_SNDQUEUELEN_OVERFLOW (0xffff-3)
u16_t snd_queuelen; /* Available buffer space for sending (in tcp_segs). */
#if TCP_OVERSIZE
/* Extra bytes available at the end of the last pbuf in unsent. */
u16_t unsent_oversize;
#endif /* TCP_OVERSIZE */
/* These are ordered by sequence number: */
struct tcp_seg *unsent; /* Unsent (queued) segments. */
struct tcp_seg *unacked; /* Sent but unacknowledged segments. */
#if TCP_QUEUE_OOSEQ
struct tcp_seg *ooseq; /* Received out of sequence segments. */
#endif /* TCP_QUEUE_OOSEQ */
struct pbuf *refused_data; /* Data previously received but not yet taken by upper layer */
#if LWIP_CALLBACK_API
/* Function to be called when more send buffer space is available. */
tcp_sent_fn sent;
/* Function to be called when (in-sequence) data has arrived. */
tcp_recv_fn recv;
/* Function to be called when a connection has been set up. */
tcp_connected_fn connected;
/* Function which is called periodically. */
tcp_poll_fn poll;
/* Function to be called whenever a fatal error occurs. */
tcp_err_fn errf;
#endif /* LWIP_CALLBACK_API */
#if LWIP_TCP_TIMESTAMPS
u32_t ts_lastacksent;
u32_t ts_recent;
#endif /* LWIP_TCP_TIMESTAMPS */
/* idle time before KEEPALIVE is sent */
u32_t keep_idle;
#if LWIP_TCP_KEEPALIVE
u32_t keep_intvl;
u32_t keep_cnt;
#endif /* LWIP_TCP_KEEPALIVE */
/* Persist timer counter */
u32_t persist_cnt;
/* Persist timer back-off */
u8_t persist_backoff;
/* KEEPALIVE counter */
u8_t keep_cnt_sent;
};
struct tcp_pcb_listen {
/* Common members of all PCB types */
IP_PCB;
/* Protocol specific PCB members */
TCP_PCB_COMMON(struct tcp_pcb_listen);
#if TCP_LISTEN_BACKLOG
u8_t backlog;
u8_t accepts_pending;
#endif /* TCP_LISTEN_BACKLOG */
};
#if LWIP_EVENT_API
enum lwip_event {
LWIP_EVENT_ACCEPT,
LWIP_EVENT_SENT,
LWIP_EVENT_RECV,
LWIP_EVENT_CONNECTED,
LWIP_EVENT_POLL,
LWIP_EVENT_ERR
};
err_t lwip_tcp_event(void *arg, struct tcp_pcb *pcb,
enum lwip_event,
struct pbuf *p,
u16_t size,
err_t err);
#endif /* LWIP_EVENT_API */
/* Application program's interface: */
struct tcp_pcb * tcp_new (void)ICACHE_FLASH_ATTR;
void tcp_arg (struct tcp_pcb *pcb, void *arg) ICACHE_FLASH_ATTR;
void tcp_accept (struct tcp_pcb *pcb, tcp_accept_fn accept) ICACHE_FLASH_ATTR;
void tcp_recv (struct tcp_pcb *pcb, tcp_recv_fn recv) ICACHE_FLASH_ATTR;
void tcp_sent (struct tcp_pcb *pcb, tcp_sent_fn sent)ICACHE_FLASH_ATTR;
void tcp_poll (struct tcp_pcb *pcb, tcp_poll_fn poll, u8_t interval)ICACHE_FLASH_ATTR;
void tcp_err (struct tcp_pcb *pcb, tcp_err_fn err)ICACHE_FLASH_ATTR;
#define tcp_mss(pcb) (((pcb)->flags & TF_TIMESTAMP) ? ((pcb)->mss - 12) : (pcb)->mss)
#define tcp_sndbuf(pcb) ((pcb)->snd_buf)
#define tcp_sndqueuelen(pcb) ((pcb)->snd_queuelen)
#define tcp_nagle_disable(pcb) ((pcb)->flags |= TF_NODELAY)
#define tcp_nagle_enable(pcb) ((pcb)->flags &= ~TF_NODELAY)
#define tcp_nagle_disabled(pcb) (((pcb)->flags & TF_NODELAY) != 0)
#if TCP_LISTEN_BACKLOG
#define tcp_accepted(pcb) do { \
LWIP_ASSERT("pcb->state == LISTEN (called for wrong pcb?)", pcb->state == LISTEN); \
(((struct tcp_pcb_listen *)(pcb))->accepts_pending--); } while(0)
#else /* TCP_LISTEN_BACKLOG */
#define tcp_accepted(pcb) LWIP_ASSERT("pcb->state == LISTEN (called for wrong pcb?)", \
pcb->state == LISTEN)
#endif /* TCP_LISTEN_BACKLOG */
void tcp_recved (struct tcp_pcb *pcb, u16_t len)ICACHE_FLASH_ATTR;
err_t tcp_bind (struct tcp_pcb *pcb, ip_addr_t *ipaddr,
u16_t port)ICACHE_FLASH_ATTR;
err_t tcp_connect (struct tcp_pcb *pcb, ip_addr_t *ipaddr,
u16_t port, tcp_connected_fn connected)ICACHE_FLASH_ATTR;
struct tcp_pcb * tcp_listen_with_backlog(struct tcp_pcb *pcb, u8_t backlog)ICACHE_FLASH_ATTR;
#define tcp_listen(pcb) tcp_listen_with_backlog(pcb, TCP_DEFAULT_LISTEN_BACKLOG)
void tcp_abort (struct tcp_pcb *pcb)ICACHE_FLASH_ATTR;
err_t tcp_close (struct tcp_pcb *pcb)ICACHE_FLASH_ATTR;
err_t tcp_shutdown(struct tcp_pcb *pcb, int shut_rx, int shut_tx)ICACHE_FLASH_ATTR;
/* Flags for "apiflags" parameter in tcp_write */
#define TCP_WRITE_FLAG_COPY 0x01
#define TCP_WRITE_FLAG_MORE 0x02
err_t tcp_write (struct tcp_pcb *pcb, const void *dataptr, u16_t len,
u8_t apiflags)ICACHE_FLASH_ATTR;
void tcp_setprio (struct tcp_pcb *pcb, u8_t prio)ICACHE_FLASH_ATTR;
#define TCP_PRIO_MIN 1
#define TCP_PRIO_NORMAL 64
#define TCP_PRIO_MAX 127
extern err_t tcp_output(struct tcp_pcb *pcb);
const char* tcp_debug_state_str(enum tcp_state s)ICACHE_FLASH_ATTR;
#ifdef __cplusplus
}
#endif
#endif /* LWIP_TCP */
#endif /* __LWIP_TCP_H__ */

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/*
* Copyright (c) 2001-2004 Swedish Institute of Computer Science.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGE.
*
* This file is part of the lwIP TCP/IP stack.
*
* Author: Adam Dunkels <adam@sics.se>
*
*/
#ifndef __LWIP_TCP_IMPL_H__
#define __LWIP_TCP_IMPL_H__
#include "lwip/opt.h"
#if LWIP_TCP /* don't build if not configured for use in lwipopts.h */
#include "lwip/tcp.h"
#include "lwip/sys.h"
#include "lwip/mem.h"
#include "lwip/pbuf.h"
#include "lwip/ip.h"
#include "lwip/icmp.h"
#include "lwip/err.h"
#ifdef __cplusplus
extern "C" {
#endif
/* Functions for interfacing with TCP: */
/* Lower layer interface to TCP: */
#define tcp_init() /* Compatibility define, no init needed. */
void tcp_tmr (void)ICACHE_FLASH_ATTR; /* Must be called every
TCP_TMR_INTERVAL
ms. (Typically 250 ms). */
/* It is also possible to call these two functions at the right
intervals (instead of calling tcp_tmr()). */
void tcp_slowtmr (void)ICACHE_FLASH_ATTR;
void tcp_fasttmr (void)ICACHE_FLASH_ATTR;
/* Only used by IP to pass a TCP segment to TCP: */
void tcp_input (struct pbuf *p, struct netif *inp)ICACHE_FLASH_ATTR;
/* Used within the TCP code only: */
struct tcp_pcb * tcp_alloc (u8_t prio)ICACHE_FLASH_ATTR;
void tcp_abandon (struct tcp_pcb *pcb, int reset)ICACHE_FLASH_ATTR;
err_t tcp_send_empty_ack(struct tcp_pcb *pcb)ICACHE_FLASH_ATTR;
void tcp_rexmit (struct tcp_pcb *pcb)ICACHE_FLASH_ATTR;
void tcp_rexmit_rto (struct tcp_pcb *pcb)ICACHE_FLASH_ATTR;
void tcp_rexmit_fast (struct tcp_pcb *pcb)ICACHE_FLASH_ATTR;
u32_t tcp_update_rcv_ann_wnd(struct tcp_pcb *pcb)ICACHE_FLASH_ATTR;
/**
* This is the Nagle algorithm: try to combine user data to send as few TCP
* segments as possible. Only send if
* - no previously transmitted data on the connection remains unacknowledged or
* - the TF_NODELAY flag is set (nagle algorithm turned off for this pcb) or
* - the only unsent segment is at least pcb->mss bytes long (or there is more
* than one unsent segment - with lwIP, this can happen although unsent->len < mss)
* - or if we are in fast-retransmit (TF_INFR)
*/
#define tcp_do_output_nagle(tpcb) ((((tpcb)->unacked == NULL) || \
((tpcb)->flags & (TF_NODELAY | TF_INFR)) || \
(((tpcb)->unsent != NULL) && (((tpcb)->unsent->next != NULL) || \
((tpcb)->unsent->len >= (tpcb)->mss))) \
) ? 1 : 0)
#define tcp_output_nagle(tpcb) (tcp_do_output_nagle(tpcb) ? tcp_output(tpcb) : ERR_OK)
#define TCP_SEQ_LT(a,b) ((s32_t)((a)-(b)) < 0)
#define TCP_SEQ_LEQ(a,b) ((s32_t)((a)-(b)) <= 0)
#define TCP_SEQ_GT(a,b) ((s32_t)((a)-(b)) > 0)
#define TCP_SEQ_GEQ(a,b) ((s32_t)((a)-(b)) >= 0)
/* is b<=a<=c? */
#if 0 /* see bug #10548 */
#define TCP_SEQ_BETWEEN(a,b,c) ((c)-(b) >= (a)-(b))
#endif
#define TCP_SEQ_BETWEEN(a,b,c) (TCP_SEQ_GEQ(a,b) && TCP_SEQ_LEQ(a,c))
#define TCP_FIN 0x01U
#define TCP_SYN 0x02U
#define TCP_RST 0x04U
#define TCP_PSH 0x08U
#define TCP_ACK 0x10U
#define TCP_URG 0x20U
#define TCP_ECE 0x40U
#define TCP_CWR 0x80U
#define TCP_FLAGS 0x3fU
/* Length of the TCP header, excluding options. */
#define TCP_HLEN 20
#ifndef TCP_TMR_INTERVAL
#define TCP_TMR_INTERVAL 250 /* The TCP timer interval in milliseconds. */
#endif /* TCP_TMR_INTERVAL */
#ifndef TCP_FAST_INTERVAL
#define TCP_FAST_INTERVAL TCP_TMR_INTERVAL /* the fine grained timeout in milliseconds */
#endif /* TCP_FAST_INTERVAL */
#ifndef TCP_SLOW_INTERVAL
#define TCP_SLOW_INTERVAL (2*TCP_TMR_INTERVAL) /* the coarse grained timeout in milliseconds */
#endif /* TCP_SLOW_INTERVAL */
#define TCP_FIN_WAIT_TIMEOUT 20000 /* milliseconds */
#define TCP_SYN_RCVD_TIMEOUT 20000 /* milliseconds */
#define TCP_OOSEQ_TIMEOUT 6U /* x RTO */
#ifndef TCP_MSL
#define TCP_MSL 60000UL /* The maximum segment lifetime in milliseconds */
#endif
/* Keepalive values, compliant with RFC 1122. Don't change this unless you know what you're doing */
#ifndef TCP_KEEPIDLE_DEFAULT
#define TCP_KEEPIDLE_DEFAULT 3000UL /* Default KEEPALIVE timer in milliseconds */
#endif
#ifndef TCP_KEEPINTVL_DEFAULT
#define TCP_KEEPINTVL_DEFAULT 1000UL /* Default Time between KEEPALIVE probes in milliseconds */
#endif
#ifndef TCP_KEEPCNT_DEFAULT
#define TCP_KEEPCNT_DEFAULT 3U /* Default Counter for KEEPALIVE probes */
#endif
#define TCP_MAXIDLE TCP_KEEPCNT_DEFAULT * TCP_KEEPINTVL_DEFAULT /* Maximum KEEPALIVE probe time */
/* Fields are (of course) in network byte order.
* Some fields are converted to host byte order in tcp_input().
*/
#ifdef PACK_STRUCT_USE_INCLUDES
# include "arch/bpstruct.h"
#endif
PACK_STRUCT_BEGIN
struct tcp_hdr {
PACK_STRUCT_FIELD(u16_t src); //源端口
PACK_STRUCT_FIELD(u16_t dest); //目的端口
PACK_STRUCT_FIELD(u32_t seqno); //序号
PACK_STRUCT_FIELD(u32_t ackno); //应答序号
PACK_STRUCT_FIELD(u16_t _hdrlen_rsvd_flags);//首部长度+保留位+标志位
PACK_STRUCT_FIELD(u16_t wnd); //窗口大小
PACK_STRUCT_FIELD(u16_t chksum); //校验和
PACK_STRUCT_FIELD(u16_t urgp); //紧急指针
} PACK_STRUCT_STRUCT;
PACK_STRUCT_END
#ifdef PACK_STRUCT_USE_INCLUDES
# include "arch/epstruct.h"
#endif
#define TCPH_OFFSET(phdr) (ntohs((phdr)->_hdrlen_rsvd_flags) >> 8)
#define TCPH_HDRLEN(phdr) (ntohs((phdr)->_hdrlen_rsvd_flags) >> 12)
#define TCPH_FLAGS(phdr) (ntohs((phdr)->_hdrlen_rsvd_flags) & TCP_FLAGS)
#define TCPH_OFFSET_SET(phdr, offset) (phdr)->_hdrlen_rsvd_flags = htons(((offset) << 8) | TCPH_FLAGS(phdr))
#define TCPH_HDRLEN_SET(phdr, len) (phdr)->_hdrlen_rsvd_flags = htons(((len) << 12) | TCPH_FLAGS(phdr))
#define TCPH_FLAGS_SET(phdr, flags) (phdr)->_hdrlen_rsvd_flags = (((phdr)->_hdrlen_rsvd_flags & PP_HTONS((u16_t)(~(u16_t)(TCP_FLAGS)))) | htons(flags))
#define TCPH_HDRLEN_FLAGS_SET(phdr, len, flags) (phdr)->_hdrlen_rsvd_flags = htons(((len) << 12) | (flags))
#define TCPH_SET_FLAG(phdr, flags ) (phdr)->_hdrlen_rsvd_flags = ((phdr)->_hdrlen_rsvd_flags | htons(flags))
#define TCPH_UNSET_FLAG(phdr, flags) (phdr)->_hdrlen_rsvd_flags = htons(ntohs((phdr)->_hdrlen_rsvd_flags) | (TCPH_FLAGS(phdr) & ~(flags)) )
#define TCP_TCPLEN(seg) ((seg)->len + ((TCPH_FLAGS((seg)->tcphdr) & (TCP_FIN | TCP_SYN)) != 0))
/** Flags used on input processing, not on pcb->flags
*/
#define TF_RESET (u8_t)0x08U /* Connection was reset. */
#define TF_CLOSED (u8_t)0x10U /* Connection was sucessfully closed. */
#define TF_GOT_FIN (u8_t)0x20U /* Connection was closed by the remote end. */
#if LWIP_EVENT_API
#define TCP_EVENT_ACCEPT(pcb,err,ret) ret = lwip_tcp_event((pcb)->callback_arg, (pcb),\
LWIP_EVENT_ACCEPT, NULL, 0, err)
#define TCP_EVENT_SENT(pcb,space,ret) ret = lwip_tcp_event((pcb)->callback_arg, (pcb),\
LWIP_EVENT_SENT, NULL, space, ERR_OK)
#define TCP_EVENT_RECV(pcb,p,err,ret) ret = lwip_tcp_event((pcb)->callback_arg, (pcb),\
LWIP_EVENT_RECV, (p), 0, (err))
#define TCP_EVENT_CLOSED(pcb,ret) ret = lwip_tcp_event((pcb)->callback_arg, (pcb),\
LWIP_EVENT_RECV, NULL, 0, ERR_OK)
#define TCP_EVENT_CONNECTED(pcb,err,ret) ret = lwip_tcp_event((pcb)->callback_arg, (pcb),\
LWIP_EVENT_CONNECTED, NULL, 0, (err))
#define TCP_EVENT_POLL(pcb,ret) ret = lwip_tcp_event((pcb)->callback_arg, (pcb),\
LWIP_EVENT_POLL, NULL, 0, ERR_OK)
#define TCP_EVENT_ERR(errf,arg,err) lwip_tcp_event((arg), NULL, \
LWIP_EVENT_ERR, NULL, 0, (err))
#else /* LWIP_EVENT_API */
#define TCP_EVENT_ACCEPT(pcb,err,ret) \
do { \
if((pcb)->accept != NULL) \
(ret) = (pcb)->accept((pcb)->callback_arg,(pcb),(err)); \
else (ret) = ERR_ARG; \
} while (0)
#define TCP_EVENT_SENT(pcb,space,ret) \
do { \
if((pcb)->sent != NULL) \
(ret) = (pcb)->sent((pcb)->callback_arg,(pcb),(space)); \
else (ret) = ERR_OK; \
} while (0)
#define TCP_EVENT_RECV(pcb,p,err,ret) \
do { \
if((pcb)->recv != NULL) { \
(ret) = (pcb)->recv((pcb)->callback_arg,(pcb),(p),(err));\
} else { \
(ret) = tcp_recv_null(NULL, (pcb), (p), (err)); \
} \
} while (0)
#define TCP_EVENT_CLOSED(pcb,ret) \
do { \
if(((pcb)->recv != NULL)) { \
(ret) = (pcb)->recv((pcb)->callback_arg,(pcb),NULL,ERR_OK);\
} else { \
(ret) = ERR_OK; \
} \
} while (0)
#define TCP_EVENT_CONNECTED(pcb,err,ret) \
do { \
if((pcb)->connected != NULL) \
(ret) = (pcb)->connected((pcb)->callback_arg,(pcb),(err)); \
else (ret) = ERR_OK; \
} while (0)
#define TCP_EVENT_POLL(pcb,ret) \
do { \
if((pcb)->poll != NULL) \
(ret) = (pcb)->poll((pcb)->callback_arg,(pcb)); \
else (ret) = ERR_OK; \
} while (0)
#define TCP_EVENT_ERR(errf,arg,err) \
do { \
if((errf) != NULL) \
(errf)((arg),(err)); \
} while (0)
#endif /* LWIP_EVENT_API */
/** Enabled extra-check for TCP_OVERSIZE if LWIP_DEBUG is enabled */
#if TCP_OVERSIZE && defined(LWIP_DEBUG)
#define TCP_OVERSIZE_DBGCHECK 1
#else
#define TCP_OVERSIZE_DBGCHECK 0
#endif
/** Don't generate checksum on copy if CHECKSUM_GEN_TCP is disabled */
#define TCP_CHECKSUM_ON_COPY (LWIP_CHECKSUM_ON_COPY && CHECKSUM_GEN_TCP)
/* This structure represents a TCP segment on the unsent, unacked and ooseq queues */
struct tcp_seg {
struct tcp_seg *next; /* used when putting segements on a queue */
struct pbuf *p; /* buffer containing data + TCP header */
void *dataptr; /* pointer to the TCP data in the pbuf */
u16_t len; /* the TCP length of this segment */
#if TCP_OVERSIZE_DBGCHECK
u16_t oversize_left; /* Extra bytes available at the end of the last
pbuf in unsent (used for asserting vs.
tcp_pcb.unsent_oversized only) */
#endif /* TCP_OVERSIZE_DBGCHECK */
#if TCP_CHECKSUM_ON_COPY
u16_t chksum;
u8_t chksum_swapped;
#endif /* TCP_CHECKSUM_ON_COPY */
u8_t flags;
#define TF_SEG_OPTS_MSS (u8_t)0x01U /* Include MSS option. */
#define TF_SEG_OPTS_TS (u8_t)0x02U /* Include timestamp option. */
#define TF_SEG_DATA_CHECKSUMMED (u8_t)0x04U /* ALL data (not the header) is
checksummed into 'chksum' */
struct tcp_hdr *tcphdr; /* the TCP header */
};
#define LWIP_TCP_OPT_LENGTH(flags) \
(flags & TF_SEG_OPTS_MSS ? 4 : 0) + \
(flags & TF_SEG_OPTS_TS ? 12 : 0)
/** This returns a TCP header option for MSS in an u32_t */
#define TCP_BUILD_MSS_OPTION(x) (x) = PP_HTONL(((u32_t)2 << 24) | \
((u32_t)4 << 16) | \
(((u32_t)TCP_MSS / 256) << 8) | \
(TCP_MSS & 255))
/* Global variables: */
extern struct tcp_pcb *tcp_input_pcb;
extern u32_t tcp_ticks;
/* The TCP PCB lists. */
union tcp_listen_pcbs_t { /* List of all TCP PCBs in LISTEN state. */
struct tcp_pcb_listen *listen_pcbs;
struct tcp_pcb *pcbs;
};
extern struct tcp_pcb *tcp_bound_pcbs;
extern union tcp_listen_pcbs_t tcp_listen_pcbs;
extern struct tcp_pcb *tcp_active_pcbs; /* List of all TCP PCBs that are in a
state in which they accept or send
data. */
extern struct tcp_pcb *tcp_tw_pcbs; /* List of all TCP PCBs in TIME-WAIT. */
extern struct tcp_pcb *tcp_tmp_pcb; /* Only used for temporary storage. */
/* Axioms about the above lists:
1) Every TCP PCB that is not CLOSED is in one of the lists.
2) A PCB is only in one of the lists.
3) All PCBs in the tcp_listen_pcbs list is in LISTEN state.
4) All PCBs in the tcp_tw_pcbs list is in TIME-WAIT state.
*/
/* Define two macros, TCP_REG and TCP_RMV that registers a TCP PCB
with a PCB list or removes a PCB from a list, respectively. */
#ifndef TCP_DEBUG_PCB_LISTS
#define TCP_DEBUG_PCB_LISTS 0
#endif
#if TCP_DEBUG_PCB_LISTS
#define TCP_REG(pcbs, npcb) do {\
LWIP_DEBUGF(TCP_DEBUG, ("TCP_REG %p local port %d\n", (npcb), (npcb)->local_port)); \
for(tcp_tmp_pcb = *(pcbs); \
tcp_tmp_pcb != NULL; \
tcp_tmp_pcb = tcp_tmp_pcb->next) { \
LWIP_ASSERT("TCP_REG: already registered\n", tcp_tmp_pcb != (npcb)); \
} \
LWIP_ASSERT("TCP_REG: pcb->state != CLOSED", ((pcbs) == &tcp_bound_pcbs) || ((npcb)->state != CLOSED)); \
(npcb)->next = *(pcbs); \
LWIP_ASSERT("TCP_REG: npcb->next != npcb", (npcb)->next != (npcb)); \
*(pcbs) = (npcb); \
LWIP_ASSERT("TCP_RMV: tcp_pcbs sane", tcp_pcbs_sane()); \
tcp_timer_needed(); \
} while(0)
#define TCP_RMV(pcbs, npcb) do { \
LWIP_ASSERT("TCP_RMV: pcbs != NULL", *(pcbs) != NULL); \
LWIP_DEBUGF(TCP_DEBUG, ("TCP_RMV: removing %p from %p\n", (npcb), *(pcbs))); \
if(*(pcbs) == (npcb)) { \
*(pcbs) = (*pcbs)->next; \
} else for(tcp_tmp_pcb = *(pcbs); tcp_tmp_pcb != NULL; tcp_tmp_pcb = tcp_tmp_pcb->next) { \
if(tcp_tmp_pcb->next == (npcb)) { \
tcp_tmp_pcb->next = (npcb)->next; \
break; \
} \
} \
(npcb)->next = NULL; \
LWIP_ASSERT("TCP_RMV: tcp_pcbs sane", tcp_pcbs_sane()); \
LWIP_DEBUGF(TCP_DEBUG, ("TCP_RMV: removed %p from %p\n", (npcb), *(pcbs))); \
} while(0)
#else /* LWIP_DEBUG */
#define TCP_REG(pcbs, npcb) \
do { \
(npcb)->next = *pcbs; \
*(pcbs) = (npcb); \
tcp_timer_needed(); \
} while (0)
#define TCP_RMV(pcbs, npcb) \
do { \
if(*(pcbs) == (npcb)) { \
(*(pcbs)) = (*pcbs)->next; \
} \
else { \
for(tcp_tmp_pcb = *pcbs; \
tcp_tmp_pcb != NULL; \
tcp_tmp_pcb = tcp_tmp_pcb->next) { \
if(tcp_tmp_pcb->next == (npcb)) { \
tcp_tmp_pcb->next = (npcb)->next; \
break; \
} \
} \
} \
(npcb)->next = NULL; \
} while(0)
#endif /* LWIP_DEBUG */
/* Internal functions: */
struct tcp_pcb *tcp_pcb_copy(struct tcp_pcb *pcb)ICACHE_FLASH_ATTR;
void tcp_pcb_purge(struct tcp_pcb *pcb)ICACHE_FLASH_ATTR;
void tcp_pcb_remove(struct tcp_pcb **pcblist, struct tcp_pcb *pcb)ICACHE_FLASH_ATTR;
void tcp_segs_free(struct tcp_seg *seg)ICACHE_FLASH_ATTR;
void tcp_seg_free(struct tcp_seg *seg)ICACHE_FLASH_ATTR;
struct tcp_seg *tcp_seg_copy(struct tcp_seg *seg)ICACHE_FLASH_ATTR;
#define tcp_ack(pcb) \
do { \
if((pcb)->flags & TF_ACK_DELAY) { \
(pcb)->flags &= ~TF_ACK_DELAY; \
(pcb)->flags |= TF_ACK_NOW; \
} \
else { \
(pcb)->flags |= TF_ACK_DELAY; \
} \
} while (0)
#define tcp_ack_now(pcb) \
do { \
(pcb)->flags |= TF_ACK_NOW; \
} while (0)
err_t tcp_send_fin(struct tcp_pcb *pcb)ICACHE_FLASH_ATTR;
err_t tcp_enqueue_flags(struct tcp_pcb *pcb, u8_t flags)ICACHE_FLASH_ATTR;
void tcp_rexmit_seg(struct tcp_pcb *pcb, struct tcp_seg *seg)ICACHE_FLASH_ATTR;
void tcp_rst(u32_t seqno, u32_t ackno,
ip_addr_t *local_ip, ip_addr_t *remote_ip,
u16_t local_port, u16_t remote_port)ICACHE_FLASH_ATTR;
u32_t tcp_next_iss(void)ICACHE_FLASH_ATTR;
void tcp_keepalive(struct tcp_pcb *pcb)ICACHE_FLASH_ATTR;
void tcp_zero_window_probe(struct tcp_pcb *pcb)ICACHE_FLASH_ATTR;
#if TCP_CALCULATE_EFF_SEND_MSS
u16_t tcp_eff_send_mss(u16_t sendmss, ip_addr_t *addr)ICACHE_FLASH_ATTR;
#endif /* TCP_CALCULATE_EFF_SEND_MSS */
#if LWIP_CALLBACK_API
err_t tcp_recv_null(void *arg, struct tcp_pcb *pcb, struct pbuf *p, err_t err)ICACHE_FLASH_ATTR;
#endif /* LWIP_CALLBACK_API */
#if TCP_DEBUG || TCP_INPUT_DEBUG || TCP_OUTPUT_DEBUG
void tcp_debug_print(struct tcp_hdr *tcphdr)ICACHE_FLASH_ATTR;
void tcp_debug_print_flags(u8_t flags)ICACHE_FLASH_ATTR;
void tcp_debug_print_state(enum tcp_state s)ICACHE_FLASH_ATTR;
void tcp_debug_print_pcbs(void)ICACHE_FLASH_ATTR;
s16_t tcp_pcbs_sane(void)ICACHE_FLASH_ATTR;
#else
# define tcp_debug_print(tcphdr)
# define tcp_debug_print_flags(flags)
# define tcp_debug_print_state(s)
# define tcp_debug_print_pcbs()
# define tcp_pcbs_sane() 1
#endif /* TCP_DEBUG */
/** External function (implemented in timers.c), called when TCP detects
* that a timer is needed (i.e. active- or time-wait-pcb found). */
void tcp_timer_needed(void)ICACHE_FLASH_ATTR;
#ifdef __cplusplus
}
#endif
#endif /* LWIP_TCP */
#endif /* __LWIP_TCP_H__ */

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/*
* Copyright (c) 2001-2004 Swedish Institute of Computer Science.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGE.
*
* This file is part of the lwIP TCP/IP stack.
*
* Author: Adam Dunkels <adam@sics.se>
*
*/
#ifndef __LWIP_TCPIP_H__
#define __LWIP_TCPIP_H__
#include "lwip/opt.h"
#if !NO_SYS /* don't build if not configured for use in lwipopts.h */
#include "lwip/api_msg.h"
#include "lwip/netifapi.h"
#include "lwip/pbuf.h"
#include "lwip/api.h"
#include "lwip/sys.h"
#include "lwip/timers.h"
#include "lwip/netif.h"
#ifdef __cplusplus
extern "C" {
#endif
/** Define this to something that triggers a watchdog. This is called from
* tcpip_thread after processing a message. */
#ifndef LWIP_TCPIP_THREAD_ALIVE
#define LWIP_TCPIP_THREAD_ALIVE()
#endif
#if LWIP_TCPIP_CORE_LOCKING
/** The global semaphore to lock the stack. */
extern sys_mutex_t lock_tcpip_core;
#define LOCK_TCPIP_CORE() sys_mutex_lock(&lock_tcpip_core)
#define UNLOCK_TCPIP_CORE() sys_mutex_unlock(&lock_tcpip_core)
#define TCPIP_APIMSG(m) tcpip_apimsg_lock(m)
#define TCPIP_APIMSG_ACK(m)
#define TCPIP_NETIFAPI(m) tcpip_netifapi_lock(m)
#define TCPIP_NETIFAPI_ACK(m)
#else /* LWIP_TCPIP_CORE_LOCKING */
#define LOCK_TCPIP_CORE()
#define UNLOCK_TCPIP_CORE()
#define TCPIP_APIMSG(m) tcpip_apimsg(m)
#define TCPIP_APIMSG_ACK(m) sys_sem_signal(&m->conn->op_completed)
#define TCPIP_NETIFAPI(m) tcpip_netifapi(m)
#define TCPIP_NETIFAPI_ACK(m) sys_sem_signal(&m->sem)
#endif /* LWIP_TCPIP_CORE_LOCKING */
/** Function prototype for the init_done function passed to tcpip_init */
typedef void (*tcpip_init_done_fn)(void *arg);
/** Function prototype for functions passed to tcpip_callback() */
typedef void (*tcpip_callback_fn)(void *ctx);
void tcpip_init(tcpip_init_done_fn tcpip_init_done, void *arg);
#if LWIP_NETCONN
err_t tcpip_apimsg(struct api_msg *apimsg);
#if LWIP_TCPIP_CORE_LOCKING
err_t tcpip_apimsg_lock(struct api_msg *apimsg);
#endif /* LWIP_TCPIP_CORE_LOCKING */
#endif /* LWIP_NETCONN */
err_t tcpip_input(struct pbuf *p, struct netif *inp);
#if LWIP_NETIF_API
err_t tcpip_netifapi(struct netifapi_msg *netifapimsg);
#if LWIP_TCPIP_CORE_LOCKING
err_t tcpip_netifapi_lock(struct netifapi_msg *netifapimsg);
#endif /* LWIP_TCPIP_CORE_LOCKING */
#endif /* LWIP_NETIF_API */
err_t tcpip_callback_with_block(tcpip_callback_fn function, void *ctx, u8_t block);
#define tcpip_callback(f, ctx) tcpip_callback_with_block(f, ctx, 1)
/* free pbufs or heap memory from another context without blocking */
err_t pbuf_free_callback(struct pbuf *p);
err_t mem_free_callback(void *m);
#if LWIP_TCPIP_TIMEOUT
err_t tcpip_timeout(u32_t msecs, sys_timeout_handler h, void *arg);
err_t tcpip_untimeout(sys_timeout_handler h, void *arg);
#endif /* LWIP_TCPIP_TIMEOUT */
enum tcpip_msg_type {
#if LWIP_NETCONN
TCPIP_MSG_API,
#endif /* LWIP_NETCONN */
TCPIP_MSG_INPKT,
#if LWIP_NETIF_API
TCPIP_MSG_NETIFAPI,
#endif /* LWIP_NETIF_API */
#if LWIP_TCPIP_TIMEOUT
TCPIP_MSG_TIMEOUT,
TCPIP_MSG_UNTIMEOUT,
#endif /* LWIP_TCPIP_TIMEOUT */
TCPIP_MSG_CALLBACK
};
struct tcpip_msg {
enum tcpip_msg_type type;
sys_sem_t *sem;
union {
#if LWIP_NETCONN
struct api_msg *apimsg;
#endif /* LWIP_NETCONN */
#if LWIP_NETIF_API
struct netifapi_msg *netifapimsg;
#endif /* LWIP_NETIF_API */
struct {
struct pbuf *p;
struct netif *netif;
} inp;
struct {
tcpip_callback_fn function;
void *ctx;
} cb;
#if LWIP_TCPIP_TIMEOUT
struct {
u32_t msecs;
sys_timeout_handler h;
void *arg;
} tmo;
#endif /* LWIP_TCPIP_TIMEOUT */
} msg;
};
#ifdef __cplusplus
}
#endif
#endif /* !NO_SYS */
#endif /* __LWIP_TCPIP_H__ */

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/*
* Copyright (c) 2001-2004 Swedish Institute of Computer Science.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGE.
*
* This file is part of the lwIP TCP/IP stack.
*
* Author: Adam Dunkels <adam@sics.se>
* Simon Goldschmidt
*
*/
#ifndef __LWIP_TIMERS_H__
#define __LWIP_TIMERS_H__
#include "lwip/opt.h"
/* Timers are not supported when NO_SYS==1 and NO_SYS_NO_TIMERS==1 */
#define LWIP_TIMERS (!NO_SYS || (NO_SYS && !NO_SYS_NO_TIMERS))
#if LWIP_TIMERS
#include "lwip/err.h"
#include "lwip/sys.h"
#ifdef __cplusplus
extern "C" {
#endif
#ifndef LWIP_DEBUG_TIMERNAMES
#ifdef LWIP_DEBUG
#define LWIP_DEBUG_TIMERNAMES SYS_DEBUG
#else /* LWIP_DEBUG */
#define LWIP_DEBUG_TIMERNAMES 0
#endif /* LWIP_DEBUG*/
#endif
/** Function prototype for a timeout callback function. Register such a function
* using sys_timeout().
*
* @param arg Additional argument to pass to the function - set up by sys_timeout()
*/
typedef void (* sys_timeout_handler)(void *arg);
struct sys_timeo {
struct sys_timeo *next;
u32_t time;
sys_timeout_handler h;
void *arg;
#if LWIP_DEBUG_TIMERNAMES
const char* handler_name;
#endif /* LWIP_DEBUG_TIMERNAMES */
};
void sys_timeouts_init(void)ICACHE_FLASH_ATTR;
#if LWIP_DEBUG_TIMERNAMES
void sys_timeout_debug(u32_t msecs, sys_timeout_handler handler, void *arg, const char* handler_name)ICACHE_FLASH_ATTR;
#define sys_timeout(msecs, handler, arg) sys_timeout_debug(msecs, handler, arg, #handler)
#else /* LWIP_DEBUG_TIMERNAMES */
void sys_timeout(u32_t msecs, sys_timeout_handler handler, void *arg)ICACHE_FLASH_ATTR;
#endif /* LWIP_DEBUG_TIMERNAMES */
void sys_untimeout(sys_timeout_handler handler, void *arg)ICACHE_FLASH_ATTR;
#if NO_SYS
void sys_check_timeouts(void)ICACHE_FLASH_ATTR;
void sys_restart_timeouts(void)ICACHE_FLASH_ATTR;
#else /* NO_SYS */
void sys_timeouts_mbox_fetch(sys_mbox_t *mbox, void **msg);
#endif /* NO_SYS */
#ifdef __cplusplus
}
#endif
#endif /* LWIP_TIMERS */
#endif /* __LWIP_TIMERS_H__ */

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/*
* Copyright (c) 2001-2004 Swedish Institute of Computer Science.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
* OF SUCH DAMAGE.
*
* This file is part of the lwIP TCP/IP stack.
*
* Author: Adam Dunkels <adam@sics.se>
*
*/
#ifndef __LWIP_UDP_H__
#define __LWIP_UDP_H__
#include "lwip/opt.h"
#if LWIP_UDP /* don't build if not configured for use in lwipopts.h */
#include "lwip/pbuf.h"
#include "lwip/netif.h"
#include "lwip/ip_addr.h"
#include "lwip/ip.h"
#ifdef __cplusplus
extern "C" {
#endif
#define UDP_HLEN 8
/* Fields are (of course) in network byte order. */
#ifdef PACK_STRUCT_USE_INCLUDES
# include "arch/bpstruct.h"
#endif
PACK_STRUCT_BEGIN
struct udp_hdr {
PACK_STRUCT_FIELD(u16_t src);
PACK_STRUCT_FIELD(u16_t dest); /* src/dest UDP ports */
PACK_STRUCT_FIELD(u16_t len);
PACK_STRUCT_FIELD(u16_t chksum);
} PACK_STRUCT_STRUCT;
PACK_STRUCT_END
#ifdef PACK_STRUCT_USE_INCLUDES
# include "arch/epstruct.h"
#endif
#define UDP_FLAGS_NOCHKSUM 0x01U
#define UDP_FLAGS_UDPLITE 0x02U
#define UDP_FLAGS_CONNECTED 0x04U
#define UDP_FLAGS_MULTICAST_LOOP 0x08U
struct udp_pcb;
/** Function prototype for udp pcb receive callback functions
* addr and port are in same byte order as in the pcb
* The callback is responsible for freeing the pbuf
* if it's not used any more.
*
* ATTENTION: Be aware that 'addr' points into the pbuf 'p' so freeing this pbuf
* makes 'addr' invalid, too.
*
* @param arg user supplied argument (udp_pcb.recv_arg)
* @param pcb the udp_pcb which received data
* @param p the packet buffer that was received
* @param addr the remote IP address from which the packet was received
* @param port the remote port from which the packet was received
*/
typedef void (*udp_recv_fn)(void *arg, struct udp_pcb *pcb, struct pbuf *p,
ip_addr_t *addr, u16_t port);
struct udp_pcb {
/* Common members of all PCB types */
IP_PCB;
/* Protocol specific PCB members */
struct udp_pcb *next;
u8_t flags;
/** ports are in host byte order */
u16_t local_port, remote_port;
#if LWIP_IGMP
/** outgoing network interface for multicast packets */
ip_addr_t multicast_ip;
#endif /* LWIP_IGMP */
#if LWIP_UDPLITE
/** used for UDP_LITE only */
u16_t chksum_len_rx, chksum_len_tx;
#endif /* LWIP_UDPLITE */
/** receive callback function */
udp_recv_fn recv;
/** user-supplied argument for the recv callback */
void *recv_arg;
};
/* udp_pcbs export for exernal reference (e.g. SNMP agent) */
extern struct udp_pcb *udp_pcbs;
/* The following functions is the application layer interface to the
UDP code. */
struct udp_pcb * udp_new (void)ICACHE_FLASH_ATTR;
void udp_remove (struct udp_pcb *pcb)ICACHE_FLASH_ATTR;
err_t udp_bind (struct udp_pcb *pcb, ip_addr_t *ipaddr,
u16_t port)ICACHE_FLASH_ATTR;
err_t udp_connect (struct udp_pcb *pcb, ip_addr_t *ipaddr,
u16_t port)ICACHE_FLASH_ATTR;
void udp_disconnect (struct udp_pcb *pcb)ICACHE_FLASH_ATTR;
void udp_recv (struct udp_pcb *pcb, udp_recv_fn recv,
void *recv_arg)ICACHE_FLASH_ATTR;
err_t udp_sendto_if (struct udp_pcb *pcb, struct pbuf *p,
ip_addr_t *dst_ip, u16_t dst_port,
struct netif *netif)ICACHE_FLASH_ATTR;
err_t udp_sendto (struct udp_pcb *pcb, struct pbuf *p,
ip_addr_t *dst_ip, u16_t dst_port)ICACHE_FLASH_ATTR;
err_t udp_send (struct udp_pcb *pcb, struct pbuf *p)ICACHE_FLASH_ATTR;
#if LWIP_CHECKSUM_ON_COPY
err_t udp_sendto_if_chksum(struct udp_pcb *pcb, struct pbuf *p,
ip_addr_t *dst_ip, u16_t dst_port,
struct netif *netif, u8_t have_chksum,
u16_t chksum)ICACHE_FLASH_ATTR;
err_t udp_sendto_chksum(struct udp_pcb *pcb, struct pbuf *p,
ip_addr_t *dst_ip, u16_t dst_port,
u8_t have_chksum, u16_t chksum)ICACHE_FLASH_ATTR;
err_t udp_send_chksum(struct udp_pcb *pcb, struct pbuf *p,
u8_t have_chksum, u16_t chksum)ICACHE_FLASH_ATTR;
#endif /* LWIP_CHECKSUM_ON_COPY */
#define udp_flags(pcb) ((pcb)->flags)
#define udp_setflags(pcb, f) ((pcb)->flags = (f))
/* The following functions are the lower layer interface to UDP. */
void udp_input (struct pbuf *p, struct netif *inp)ICACHE_FLASH_ATTR;
#define udp_init() /* Compatibility define, not init needed. */
#if UDP_DEBUG
void udp_debug_print(struct udp_hdr *udphdr)ICACHE_FLASH_ATTR;
#else
#define udp_debug_print(udphdr)
#endif
#ifdef __cplusplus
}
#endif
#endif /* LWIP_UDP */
#endif /* __LWIP_UDP_H__ */