178 lines
6.2 KiB
C
178 lines
6.2 KiB
C
/*
|
|
* 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_IP4_H__
|
|
#define __LWIP_IP4_H__
|
|
|
|
#include "opt.h"
|
|
|
|
#include "def.h"
|
|
#include "pbuf.h"
|
|
#include "ip_addr.h"
|
|
#include "ip6_addr.h"
|
|
#include "err.h"
|
|
#include "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
|
|
#define IP_PROTO_GRE 47
|
|
#define IP_PROTO_ESP 50
|
|
#define IP_PROTO_AH 51
|
|
|
|
/** This operates on a void* by loading the first byte */
|
|
#define IP_HDR_GET_VERSION(ptr) ((*(u8_t*)(ptr)) >> 4)
|
|
|
|
#ifdef PACK_STRUCT_USE_INCLUDES
|
|
# include "bpstruct.h"
|
|
#endif
|
|
|
|
#undef IP_RF
|
|
#undef IP_DF
|
|
#undef IP_MF
|
|
#undef IP_OFFMASK
|
|
|
|
#define IP_RF 0x8000U /* reserved fragment flag */
|
|
#define IP_DF 0x4000U /* dont fragment flag */
|
|
#define IP_MF 0x2000U /* more fragments flag */
|
|
#define IP_OFFMASK 0x1fffU /* mask for fragmenting bits */
|
|
|
|
PACK_STRUCT_BEGIN
|
|
struct ipsec_esp_hdr {
|
|
PACK_STRUCT_FIELD(u32_t spi); /**< Security Parameters Index */
|
|
PACK_STRUCT_FIELD(u32_t sequence); /**< Sequence number */
|
|
}PACK_STRUCT_STRUCT;
|
|
PACK_STRUCT_END
|
|
|
|
PACK_STRUCT_BEGIN
|
|
struct ip_hdr {
|
|
/* version / header length */
|
|
PACK_STRUCT_FIELD(u8_t _v_hl);
|
|
/* type of service */
|
|
PACK_STRUCT_FIELD(u8_t _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);
|
|
/* 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 "epstruct.h"
|
|
#endif
|
|
|
|
#define IPH_V(hdr) ((hdr)->_v_hl >> 4)
|
|
#define IPH_HL(hdr) ((hdr)->_v_hl & 0x0f)
|
|
#define IPH_TOS(hdr) ((hdr)->_tos)
|
|
#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_VHL_SET(hdr, v, hl) (hdr)->_v_hl = (((v) << 4) | (hl))
|
|
#define IPH_TOS_SET(hdr, tos) (hdr)->_tos = (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)
|
|
|
|
|
|
#define ip_init() /* Compatibility define, no init needed. */
|
|
void ip_mangle_ttl(struct netif *netif, struct pbuf *p, u8_t ttl);
|
|
struct netif *ip_route(ip_addr_t *dest);
|
|
struct netif *ip_route_lc(struct pbuf *p, struct netif *inp);
|
|
struct netif *ip_route_from_app_fn(u32_t ip4_src, u32_t ip4_dest, const char* file, const int line);
|
|
#define ip_route_from_app(ip4_src, ip4_dest) ip_route_from_app_fn((ip4_src), (ip4_dest), __FUNCTION__, __LINE__)
|
|
|
|
err_t ip_input(struct pbuf *p, struct netif *inp);
|
|
err_t ip4_input(struct pbuf *p, struct netif *inp);
|
|
err_t ip_output(struct pbuf *p, ip_addr_t *src, ip_addr_t *dest,
|
|
u8_t ttl, u8_t tos, u8_t proto);
|
|
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);
|
|
#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);
|
|
#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);
|
|
#endif /* IP_OPTIONS_SEND */
|
|
|
|
#define ip_netif_get_local_ip(netif) (((netif) != NULL) ? (&((netif)->ip_addr)) : NULL)
|
|
#define ip_netif_get_local_ipX(netif) (((netif) != NULL) ? ip_2_ipX(&((netif)->ip_addr)) : NULL)
|
|
|
|
#if LWIP_DEBUG
|
|
void ip_debug_print(struct pbuf *p);
|
|
#else
|
|
#define ip_debug_print(p)
|
|
#endif
|
|
|
|
void ip_pbuf_rti_log(struct netif* inp, struct pbuf *p);
|
|
void ip_pbuf_log_input(struct netif *inp, struct ip_hdr *iphdr, u16_t payloadLen, struct pbuf *p);
|
|
void ip_pbuf_log_output_fn(struct netif *inp, struct ip_hdr *iphdr, u16_t payloadLen, err_t ret, struct pbuf *p, const char *func);
|
|
#define ip_pbuf_log_output(inp, iphdr, len, ret, p) ip_pbuf_log_output_fn(inp, iphdr, len, ret, p, __FUNCTION__)
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif /* __LWIP_IP_H__ */
|
|
|
|
|