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 #ifdef LOSCFG_NET_CONTAINER 66 struct netif *ip4_route(const ip4_addr_t *dest, struct net_group *group); 67 #else 68 struct netif *ip4_route(const ip4_addr_t *dest); 69 #endif 70 #if LWIP_IPV4_SRC_ROUTING 71 struct netif *ip4_route_src(const ip4_addr_t *src, const ip4_addr_t *dest); 72 #else /* LWIP_IPV4_SRC_ROUTING */ 73 #ifdef LOSCFG_NET_CONTAINER 74 #define ip4_route_src(src, dest, group) ip4_route(dest, group) 75 #else 76 #define ip4_route_src(src, dest) ip4_route(dest) 77 #endif 78 #endif /* LWIP_IPV4_SRC_ROUTING */ 79 err_t ip4_input(struct pbuf *p, struct netif *inp); 80 err_t ip4_output(struct pbuf *p, const ip4_addr_t *src, const ip4_addr_t *dest, 81 u8_t ttl, u8_t tos, u8_t proto); 82 err_t ip4_output_if(struct pbuf *p, const ip4_addr_t *src, const ip4_addr_t *dest, 83 u8_t ttl, u8_t tos, u8_t proto, struct netif *netif); 84 err_t ip4_output_if_src(struct pbuf *p, const ip4_addr_t *src, const ip4_addr_t *dest, 85 u8_t ttl, u8_t tos, u8_t proto, struct netif *netif); 86 #if LWIP_NETIF_USE_HINTS 87 err_t ip4_output_hinted(struct pbuf *p, const ip4_addr_t *src, const ip4_addr_t *dest, 88 u8_t ttl, u8_t tos, u8_t proto, struct netif_hint *netif_hint); 89 #endif /* LWIP_NETIF_USE_HINTS */ 90 #if IP_OPTIONS_SEND 91 err_t ip4_output_if_opt(struct pbuf *p, const ip4_addr_t *src, const ip4_addr_t *dest, 92 u8_t ttl, u8_t tos, u8_t proto, struct netif *netif, void *ip_options, 93 u16_t optlen); 94 err_t ip4_output_if_opt_src(struct pbuf *p, const ip4_addr_t *src, const ip4_addr_t *dest, 95 u8_t ttl, u8_t tos, u8_t proto, struct netif *netif, void *ip_options, 96 u16_t optlen); 97 #endif /* IP_OPTIONS_SEND */ 98 99 #if LWIP_MULTICAST_TX_OPTIONS 100 void ip4_set_default_multicast_netif(struct netif* default_multicast_netif); 101 #endif /* LWIP_MULTICAST_TX_OPTIONS */ 102 103 #define ip4_netif_get_local_ip(netif) (((netif) != NULL) ? netif_ip_addr4(netif) : NULL) 104 105 #if IP_DEBUG 106 void ip4_debug_print(struct pbuf *p); 107 #else 108 #define ip4_debug_print(p) 109 #endif /* IP_DEBUG */ 110 111 #ifdef __cplusplus 112 } 113 #endif 114 115 #endif /* LWIP_IPV4 */ 116 117 #endif /* LWIP_HDR_IP_H */ 118 119 120