minix/lib/liblwip/dist/src/include/lwip/ip4.h

   1 /**
   2  * @file
   3  * IPv4 API
   4  */
   5
   6 /*
   7  * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
   8  * All rights reserved.
   9  *
  10  * Redistribution and use in source and binary forms, with or without modification,
  11  * are permitted provided that the following conditions are met:
  12  *
  13  * 1. Redistributions of source code must retain the above copyright notice,
  14  *    this list of conditions and the following disclaimer.
  15  * 2. Redistributions in binary form must reproduce the above copyright notice,
  16  *    this list of conditions and the following disclaimer in the documentation
  17  *    and/or other materials provided with the distribution.
  18  * 3. The name of the author may not be used to endorse or promote products
  19  *    derived from this software without specific prior written permission.
  20  *
  21  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
  22  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
  23  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
  24  * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
  25  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
  26  * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  27  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  28  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
  29  * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
  30  * OF SUCH DAMAGE.
  31  *
  32  * This file is part of the lwIP TCP/IP stack.
  33  *
  34  * Author: Adam Dunkels <adam@sics.se>
  35  *
  36  */
  37 #ifndef LWIP_HDR_IP4_H
  38 #define LWIP_HDR_IP4_H
  39
  40 #include "lwip/opt.h"
  41
  42 #if LWIP_IPV4
  43
  44 #include "lwip/def.h"
  45 #include "lwip/pbuf.h"
  46 #include "lwip/ip4_addr.h"
  47 #include "lwip/err.h"
  48 #include "lwip/netif.h"
  49 #include "lwip/prot/ip4.h"
  50
  51 #ifdef __cplusplus
  52 extern "C" {
  53 #endif
  54
  55 #ifdef LWIP_HOOK_IP4_ROUTE_SRC
  56 #define LWIP_IPV4_SRC_ROUTING   1
  57 #else
  58 #define LWIP_IPV4_SRC_ROUTING   0
  59 #endif
  60
  61 /** Currently, the function ip_output_if_opt() is only used with IGMP */
  62 #define IP_OPTIONS_SEND   (LWIP_IPV4 && LWIP_IGMP)
  63
  64 #define ip_init() /* Compatibility define, no init needed. */
  65 struct netif *ip4_route(const ip4_addr_t *dest);
  66 #if LWIP_IPV4_SRC_ROUTING
  67 struct netif *ip4_route_src(const ip4_addr_t *dest, const ip4_addr_t *src);
  68 #else /* LWIP_IPV4_SRC_ROUTING */
  69 #define ip4_route_src(dest, src) ip4_route(dest)
  70 #endif /* LWIP_IPV4_SRC_ROUTING */
  71 err_t ip4_input(struct pbuf *p, struct netif *inp);
  72 err_t ip4_output(struct pbuf *p, const ip4_addr_t *src, const ip4_addr_t *dest,
  73        u8_t ttl, u8_t tos, u8_t proto);
  74 err_t ip4_output_if(struct pbuf *p, const ip4_addr_t *src, const ip4_addr_t *dest,
  75        u8_t ttl, u8_t tos, u8_t proto, struct netif *netif);
  76 err_t ip4_output_if_src(struct pbuf *p, const ip4_addr_t *src, const ip4_addr_t *dest,
  77        u8_t ttl, u8_t tos, u8_t proto, struct netif *netif);
  78 #if LWIP_NETIF_HWADDRHINT
  79 err_t ip4_output_hinted(struct pbuf *p, const ip4_addr_t *src, const ip4_addr_t *dest,
  80        u8_t ttl, u8_t tos, u8_t proto, u8_t *addr_hint);
  81 #endif /* LWIP_NETIF_HWADDRHINT */
  82 #if IP_OPTIONS_SEND
  83 err_t ip4_output_if_opt(struct pbuf *p, const ip4_addr_t *src, const ip4_addr_t *dest,
  84        u8_t ttl, u8_t tos, u8_t proto, struct netif *netif, void *ip_options,
  85        u16_t optlen);
  86 err_t ip4_output_if_opt_src(struct pbuf *p, const ip4_addr_t *src, const ip4_addr_t *dest,
  87        u8_t ttl, u8_t tos, u8_t proto, struct netif *netif, void *ip_options,
  88        u16_t optlen);
  89 #endif /* IP_OPTIONS_SEND */
  90
  91 #if LWIP_MULTICAST_TX_OPTIONS
  92 void  ip4_set_default_multicast_netif(struct netif* default_multicast_netif);
  93 #endif /* LWIP_MULTICAST_TX_OPTIONS */
  94
  95 #define ip4_netif_get_local_ip(netif) (((netif) != NULL) ? netif_ip_addr4(netif) : NULL)
  96
  97 #if IP_DEBUG
  98 void ip4_debug_print(struct pbuf *p);
  99 #else
 100 #define ip4_debug_print(p)
 101 #endif /* IP_DEBUG */
 102
 103 #ifdef __cplusplus
 104 }
 105 #endif
 106
 107 #endif /* LWIP_IPV4 */
 108
 109 #endif /* LWIP_HDR_IP_H */
 110
 111