mirror of
https://github.com/esp8266/Arduino.git
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ffe5476fc4
* time: import IANA timezone definitions
- `configTime("timezone", "ntp servers...")` added
- timezone definitions by country/cities (TZ.h)
- script to update timezone definitions
- updated example
* fix former configTime non-matching signature
* +include
* example: add scheduled function in callback
* crlf fix
* +missing license for napt
* SNTP: expose configuration helpers
* update submodule
* update precompiled libraries
* optional: change SNTP startup delay
* makes SNTP_UPDATE_DELAY a weak function
update example
fix for lwip1.4
* on the proper use of polledTimeout api... thanks @mcspr :]
* improve update script (per review)
* update lwIP submodule
* update submodule
* hide harmless shell message
* update the release process by asking first to update TZ.h
[ci skip]
* minor update in release documentation
* update in release documentation
* update in release documentation
* clarify release documentation
* fix release documentation - sorry for the noise :(
* fixes per review
* example style
* useless variable in example
* update lwip2 submodule reference, to include espressif missing declaration fixes
154 lines
4.2 KiB
C
154 lines
4.2 KiB
C
/**
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* @file
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* Network Address and Port Translation
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*/
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/*
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* Copyright (c) 2016-2019 NeoCat <neocat@neocat.jp>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without modification,
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* are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
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* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
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* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
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* OF SUCH DAMAGE.
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*
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* This file is part of the lwIP TCP/IP stack.
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*
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* Author: NeoCat <neocat@neocat.jp>
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*
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*/
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#ifndef __LWIP_NAPT_H__
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#define __LWIP_NAPT_H__
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#include "lwip/opt.h"
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#include "lwip/err.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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#if IP_FORWARD
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#if IP_NAPT
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/* Default size of the tables used for NAPT */
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#define IP_NAPT_MAX 512
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#define IP_PORTMAP_MAX 32
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/* Timeouts in sec for the various protocol types */
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#define IP_NAPT_TIMEOUT_MS_TCP (30*60*1000)
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#define IP_NAPT_TIMEOUT_MS_TCP_DISCON (20*1000)
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#define IP_NAPT_TIMEOUT_MS_UDP (2*1000)
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#define IP_NAPT_TIMEOUT_MS_ICMP (2*1000)
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#define IP_NAPT_PORT_RANGE_START 49152
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#define IP_NAPT_PORT_RANGE_END 61439
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struct napt_table {
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u32_t last;
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u32_t src;
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u32_t dest;
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u16_t sport;
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u16_t dport;
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u16_t mport;
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u8_t proto;
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u8_t fin1 : 1;
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u8_t fin2 : 1;
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u8_t finack1 : 1;
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u8_t finack2 : 1;
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u8_t synack : 1;
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u8_t rst : 1;
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u16_t next, prev;
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};
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struct portmap_table {
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u32_t maddr;
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u32_t daddr;
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u16_t mport;
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u16_t dport;
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u8_t proto;
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u8_t valid;
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};
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extern struct portmap_table *ip_portmap_table;
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/**
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* Allocates and initializes the NAPT tables.
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*
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* @param max_nat max number of enties in the NAPT table (use IP_NAPT_MAX if in doubt)
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* @param max_portmap max number of enties in the NAPT table (use IP_PORTMAP_MAX if in doubt)
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*/
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err_t
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ip_napt_init(u16_t max_nat, u8_t max_portmap);
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/**
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* Enable/Disable NAPT for a specified interface.
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*
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* @param addr ip address of the interface
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* @param enable non-zero to enable NAPT, or 0 to disable.
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*/
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err_t
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ip_napt_enable(u32_t addr, int enable);
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/**
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* Enable/Disable NAPT for a specified interface.
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*
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* @param netif number of the interface
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* @param enable non-zero to enable NAPT, or 0 to disable.
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*/
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err_t
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ip_napt_enable_no(u8_t number, int enable);
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/**
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* Register port mapping on the external interface to internal interface.
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* When the same port mapping is registered again, the old mapping is overwritten.
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* In this implementation, only 1 unique port mapping can be defined for each target address/port.
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*
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* @param proto target protocol
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* @param maddr ip address of the external interface
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* @param mport mapped port on the external interface, in host byte order.
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* @param daddr destination ip address
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* @param dport destination port, in host byte order.
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*/
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u8_t
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ip_portmap_add(u8_t proto, u32_t maddr, u16_t mport, u32_t daddr, u16_t dport);
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/**
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* Unregister port mapping on the external interface to internal interface.
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*
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* @param proto target protocol
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* @param maddr ip address of the external interface
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*/
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u8_t
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ip_portmap_remove(u8_t proto, u16_t mport);
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#endif /* IP_NAPT */
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#endif /* IP_FORWARD */
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#ifdef __cplusplus
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}
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#endif
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#endif /* __LWIP_NAPT_H__ */
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