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https://github.com/esp8266/Arduino.git
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a1e59e9c01
* update to lwIP-2.1.0rc1: partial SACK support fix #4176 * hash fix * get some flash back due to mistake in conf (fragmentation & reassembly was incorrectly enabled) (ahah I scared you) * add missing include files * update to lwip-2.1.0(release) + remove unused lwIP's include files * lwIP release 2.1.0, SACK is now default, bigger, no-SACK is selectable * fix ldscript * pio * rename 'sack' option to 'feat'ure option, + IP fragmentation/reassembly * merge, fix pio * change internal/hidden string * pio: more lwip2 configuration: + without sack for no change in flash footprint
144 lines
5.3 KiB
C
144 lines
5.3 KiB
C
/**
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* @file
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* raw API (to be used from TCPIP thread)\n
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* See also @ref raw_raw
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*/
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/*
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* Copyright (c) 2001-2004 Swedish Institute of Computer Science.
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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: Adam Dunkels <adam@sics.se>
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*
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*/
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#ifndef LWIP_HDR_RAW_H
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#define LWIP_HDR_RAW_H
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#include "lwip/opt.h"
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#if LWIP_RAW /* don't build if not configured for use in lwipopts.h */
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#include "lwip/pbuf.h"
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#include "lwip/def.h"
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#include "lwip/ip.h"
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#include "lwip/ip_addr.h"
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#include "lwip/ip6_addr.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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#define RAW_FLAGS_CONNECTED 0x01U
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#define RAW_FLAGS_HDRINCL 0x02U
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#define RAW_FLAGS_MULTICAST_LOOP 0x04U
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struct raw_pcb;
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/** Function prototype for raw pcb receive callback functions.
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* @param arg user supplied argument (raw_pcb.recv_arg)
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* @param pcb the raw_pcb which received data
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* @param p the packet buffer that was received
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* @param addr the remote IP address from which the packet was received
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* @return 1 if the packet was 'eaten' (aka. deleted),
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* 0 if the packet lives on
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* If returning 1, the callback is responsible for freeing the pbuf
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* if it's not used any more.
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*/
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typedef u8_t (*raw_recv_fn)(void *arg, struct raw_pcb *pcb, struct pbuf *p,
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const ip_addr_t *addr);
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/** the RAW protocol control block */
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struct raw_pcb {
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/* Common members of all PCB types */
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IP_PCB;
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struct raw_pcb *next;
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u8_t protocol;
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u8_t flags;
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#if LWIP_MULTICAST_TX_OPTIONS
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/** outgoing network interface for multicast packets, by interface index (if nonzero) */
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u8_t mcast_ifindex;
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/** TTL for outgoing multicast packets */
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u8_t mcast_ttl;
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#endif /* LWIP_MULTICAST_TX_OPTIONS */
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/** receive callback function */
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raw_recv_fn recv;
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/* user-supplied argument for the recv callback */
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void *recv_arg;
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#if LWIP_IPV6
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/* fields for handling checksum computations as per RFC3542. */
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u16_t chksum_offset;
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u8_t chksum_reqd;
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#endif
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};
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/* The following functions is the application layer interface to the
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RAW code. */
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struct raw_pcb * raw_new (u8_t proto);
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struct raw_pcb * raw_new_ip_type(u8_t type, u8_t proto);
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void raw_remove (struct raw_pcb *pcb);
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err_t raw_bind (struct raw_pcb *pcb, const ip_addr_t *ipaddr);
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void raw_bind_netif (struct raw_pcb *pcb, const struct netif *netif);
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err_t raw_connect (struct raw_pcb *pcb, const ip_addr_t *ipaddr);
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void raw_disconnect (struct raw_pcb *pcb);
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err_t raw_sendto (struct raw_pcb *pcb, struct pbuf *p, const ip_addr_t *ipaddr);
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err_t raw_sendto_if_src(struct raw_pcb *pcb, struct pbuf *p, const ip_addr_t *dst_ip, struct netif *netif, const ip_addr_t *src_ip);
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err_t raw_send (struct raw_pcb *pcb, struct pbuf *p);
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void raw_recv (struct raw_pcb *pcb, raw_recv_fn recv, void *recv_arg);
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#define raw_flags(pcb) ((pcb)->flags)
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#define raw_setflags(pcb,f) ((pcb)->flags = (f))
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#define raw_set_flags(pcb, set_flags) do { (pcb)->flags = (u8_t)((pcb)->flags | (set_flags)); } while(0)
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#define raw_clear_flags(pcb, clr_flags) do { (pcb)->flags = (u8_t)((pcb)->flags & (u8_t)(~(clr_flags) & 0xff)); } while(0)
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#define raw_is_flag_set(pcb, flag) (((pcb)->flags & (flag)) != 0)
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#define raw_init() /* Compatibility define, no init needed. */
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/* for compatibility with older implementation */
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#define raw_new_ip6(proto) raw_new_ip_type(IPADDR_TYPE_V6, proto)
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#if LWIP_MULTICAST_TX_OPTIONS
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#define raw_set_multicast_netif_index(pcb, idx) ((pcb)->mcast_ifindex = (idx))
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#define raw_get_multicast_netif_index(pcb) ((pcb)->mcast_ifindex)
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#define raw_set_multicast_ttl(pcb, value) ((pcb)->mcast_ttl = (value))
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#define raw_get_multicast_ttl(pcb) ((pcb)->mcast_ttl)
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#endif /* LWIP_MULTICAST_TX_OPTIONS */
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#ifdef __cplusplus
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}
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#endif
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#endif /* LWIP_RAW */
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#endif /* LWIP_HDR_RAW_H */
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