sasa ivkovic / Mbed 2 deprecated LAN

testing of combination of LCS and LAN

Dependencies:   mbed

EthernetNetIf/LPC1768/lwip/include/ipv4/lwip/ip.h@0:a7a6a692162f, 2015-01-14 (annotated)

Committer:
damir
Date:
Wed Jan 14 13:29:55 2015 +0000
Revision:
0:a7a6a692162f
Test of LAN

Who changed what in which revision?

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damir 0:a7a6a692162f 1 /*
damir 0:a7a6a692162f 2 * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
damir 0:a7a6a692162f 3 * All rights reserved.
damir 0:a7a6a692162f 4 *
damir 0:a7a6a692162f 5 * Redistribution and use in source and binary forms, with or without modification,
damir 0:a7a6a692162f 6 * are permitted provided that the following conditions are met:
damir 0:a7a6a692162f 7 *
damir 0:a7a6a692162f 8 * 1. Redistributions of source code must retain the above copyright notice,
damir 0:a7a6a692162f 9 * this list of conditions and the following disclaimer.
damir 0:a7a6a692162f 10 * 2. Redistributions in binary form must reproduce the above copyright notice,
damir 0:a7a6a692162f 11 * this list of conditions and the following disclaimer in the documentation
damir 0:a7a6a692162f 12 * and/or other materials provided with the distribution.
damir 0:a7a6a692162f 13 * 3. The name of the author may not be used to endorse or promote products
damir 0:a7a6a692162f 14 * derived from this software without specific prior written permission.
damir 0:a7a6a692162f 15 *
damir 0:a7a6a692162f 16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
damir 0:a7a6a692162f 17 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
damir 0:a7a6a692162f 18 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
damir 0:a7a6a692162f 19 * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
damir 0:a7a6a692162f 20 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
damir 0:a7a6a692162f 21 * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
damir 0:a7a6a692162f 22 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
damir 0:a7a6a692162f 23 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
damir 0:a7a6a692162f 24 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
damir 0:a7a6a692162f 25 * OF SUCH DAMAGE.
damir 0:a7a6a692162f 26 *
damir 0:a7a6a692162f 27 * This file is part of the lwIP TCP/IP stack.
damir 0:a7a6a692162f 28 *
damir 0:a7a6a692162f 29 * Author: Adam Dunkels <adam@sics.se>
damir 0:a7a6a692162f 30 *
damir 0:a7a6a692162f 31 */
damir 0:a7a6a692162f 32 #ifndef __LWIP_IP_H__
damir 0:a7a6a692162f 33 #define __LWIP_IP_H__
damir 0:a7a6a692162f 34
damir 0:a7a6a692162f 35 #include "lwip/opt.h"
damir 0:a7a6a692162f 36
damir 0:a7a6a692162f 37 #include "lwip/def.h"
damir 0:a7a6a692162f 38 #include "lwip/pbuf.h"
damir 0:a7a6a692162f 39 #include "lwip/ip_addr.h"
damir 0:a7a6a692162f 40 #include "lwip/err.h"
damir 0:a7a6a692162f 41 #include "lwip/netif.h"
damir 0:a7a6a692162f 42
damir 0:a7a6a692162f 43 #ifdef __cplusplus
damir 0:a7a6a692162f 44 extern "C" {
damir 0:a7a6a692162f 45 #endif
damir 0:a7a6a692162f 46
damir 0:a7a6a692162f 47 /** Currently, the function ip_output_if_opt() is only used with IGMP */
damir 0:a7a6a692162f 48 #define IP_OPTIONS_SEND LWIP_IGMP
damir 0:a7a6a692162f 49
damir 0:a7a6a692162f 50 #define IP_HLEN 20
damir 0:a7a6a692162f 51
damir 0:a7a6a692162f 52 #define IP_PROTO_ICMP 1
damir 0:a7a6a692162f 53 #define IP_PROTO_IGMP 2
damir 0:a7a6a692162f 54 #define IP_PROTO_UDP 17
damir 0:a7a6a692162f 55 #define IP_PROTO_UDPLITE 136
damir 0:a7a6a692162f 56 #define IP_PROTO_TCP 6
damir 0:a7a6a692162f 57
damir 0:a7a6a692162f 58 /* This is passed as the destination address to ip_output_if (not
damir 0:a7a6a692162f 59 to ip_output), meaning that an IP header already is constructed
damir 0:a7a6a692162f 60 in the pbuf. This is used when TCP retransmits. */
damir 0:a7a6a692162f 61 #ifdef IP_HDRINCL
damir 0:a7a6a692162f 62 #undef IP_HDRINCL
damir 0:a7a6a692162f 63 #endif /* IP_HDRINCL */
damir 0:a7a6a692162f 64 #define IP_HDRINCL NULL
damir 0:a7a6a692162f 65
damir 0:a7a6a692162f 66 #if LWIP_NETIF_HWADDRHINT
damir 0:a7a6a692162f 67 #define IP_PCB_ADDRHINT ;u8_t addr_hint
damir 0:a7a6a692162f 68 #else
damir 0:a7a6a692162f 69 #define IP_PCB_ADDRHINT
damir 0:a7a6a692162f 70 #endif /* LWIP_NETIF_HWADDRHINT */
damir 0:a7a6a692162f 71
damir 0:a7a6a692162f 72 /* This is the common part of all PCB types. It needs to be at the
damir 0:a7a6a692162f 73 beginning of a PCB type definition. It is located here so that
damir 0:a7a6a692162f 74 changes to this common part are made in one location instead of
damir 0:a7a6a692162f 75 having to change all PCB structs. */
damir 0:a7a6a692162f 76 #define IP_PCB \
damir 0:a7a6a692162f 77 /* ip addresses in network byte order */ \
damir 0:a7a6a692162f 78 ip_addr_t local_ip; \
damir 0:a7a6a692162f 79 ip_addr_t remote_ip; \
damir 0:a7a6a692162f 80 /* Socket options */ \
damir 0:a7a6a692162f 81 u8_t so_options; \
damir 0:a7a6a692162f 82 /* Type Of Service */ \
damir 0:a7a6a692162f 83 u8_t tos; \
damir 0:a7a6a692162f 84 /* Time To Live */ \
damir 0:a7a6a692162f 85 u8_t ttl \
damir 0:a7a6a692162f 86 /* link layer address resolution hint */ \
damir 0:a7a6a692162f 87 IP_PCB_ADDRHINT
damir 0:a7a6a692162f 88
damir 0:a7a6a692162f 89 struct ip_pcb {
damir 0:a7a6a692162f 90 /* Common members of all PCB types */
damir 0:a7a6a692162f 91 IP_PCB;
damir 0:a7a6a692162f 92 };
damir 0:a7a6a692162f 93
damir 0:a7a6a692162f 94 /*
damir 0:a7a6a692162f 95 * Option flags per-socket. These are the same like SO_XXX.
damir 0:a7a6a692162f 96 */
damir 0:a7a6a692162f 97 /*#define SOF_DEBUG (u8_t)0x01U Unimplemented: turn on debugging info recording */
damir 0:a7a6a692162f 98 #define SOF_ACCEPTCONN (u8_t)0x02U /* socket has had listen() */
damir 0:a7a6a692162f 99 #define SOF_REUSEADDR (u8_t)0x04U /* allow local address reuse */
damir 0:a7a6a692162f 100 #define SOF_KEEPALIVE (u8_t)0x08U /* keep connections alive */
damir 0:a7a6a692162f 101 /*#define SOF_DONTROUTE (u8_t)0x10U Unimplemented: just use interface addresses */
damir 0:a7a6a692162f 102 #define SOF_BROADCAST (u8_t)0x20U /* permit to send and to receive broadcast messages (see IP_SOF_BROADCAST option) */
damir 0:a7a6a692162f 103 /*#define SOF_USELOOPBACK (u8_t)0x40U Unimplemented: bypass hardware when possible */
damir 0:a7a6a692162f 104 #define SOF_LINGER (u8_t)0x80U /* linger on close if data present */
damir 0:a7a6a692162f 105 /*#define SOF_OOBINLINE (u16_t)0x0100U Unimplemented: leave received OOB data in line */
damir 0:a7a6a692162f 106 /*#define SOF_REUSEPORT (u16_t)0x0200U Unimplemented: allow local address & port reuse */
damir 0:a7a6a692162f 107
damir 0:a7a6a692162f 108 /* These flags are inherited (e.g. from a listen-pcb to a connection-pcb): */
damir 0:a7a6a692162f 109 #define SOF_INHERITED (SOF_REUSEADDR|SOF_KEEPALIVE|SOF_LINGER/*|SOF_DEBUG|SOF_DONTROUTE|SOF_OOBINLINE*/)
damir 0:a7a6a692162f 110
damir 0:a7a6a692162f 111
damir 0:a7a6a692162f 112 #ifdef PACK_STRUCT_USE_INCLUDES
damir 0:a7a6a692162f 113 # include "arch/bpstruct.h"
damir 0:a7a6a692162f 114 #endif
damir 0:a7a6a692162f 115 PACK_STRUCT_BEGIN
damir 0:a7a6a692162f 116 struct ip_hdr {
damir 0:a7a6a692162f 117 /* version / header length / type of service */
damir 0:a7a6a692162f 118 PACK_STRUCT_FIELD(u16_t _v_hl_tos);
damir 0:a7a6a692162f 119 /* total length */
damir 0:a7a6a692162f 120 PACK_STRUCT_FIELD(u16_t _len);
damir 0:a7a6a692162f 121 /* identification */
damir 0:a7a6a692162f 122 PACK_STRUCT_FIELD(u16_t _id);
damir 0:a7a6a692162f 123 /* fragment offset field */
damir 0:a7a6a692162f 124 PACK_STRUCT_FIELD(u16_t _offset);
damir 0:a7a6a692162f 125 #define IP_RF 0x8000 /* reserved fragment flag */
damir 0:a7a6a692162f 126 #define IP_DF 0x4000 /* dont fragment flag */
damir 0:a7a6a692162f 127 #define IP_MF 0x2000 /* more fragments flag */
damir 0:a7a6a692162f 128 #define IP_OFFMASK 0x1fff /* mask for fragmenting bits */
damir 0:a7a6a692162f 129 /* time to live */
damir 0:a7a6a692162f 130 PACK_STRUCT_FIELD(u8_t _ttl);
damir 0:a7a6a692162f 131 /* protocol*/
damir 0:a7a6a692162f 132 PACK_STRUCT_FIELD(u8_t _proto);
damir 0:a7a6a692162f 133 /* checksum */
damir 0:a7a6a692162f 134 PACK_STRUCT_FIELD(u16_t _chksum);
damir 0:a7a6a692162f 135 /* source and destination IP addresses */
damir 0:a7a6a692162f 136 PACK_STRUCT_FIELD(ip_addr_p_t src);
damir 0:a7a6a692162f 137 PACK_STRUCT_FIELD(ip_addr_p_t dest);
damir 0:a7a6a692162f 138 } PACK_STRUCT_STRUCT;
damir 0:a7a6a692162f 139 PACK_STRUCT_END
damir 0:a7a6a692162f 140 #ifdef PACK_STRUCT_USE_INCLUDES
damir 0:a7a6a692162f 141 # include "arch/epstruct.h"
damir 0:a7a6a692162f 142 #endif
damir 0:a7a6a692162f 143
damir 0:a7a6a692162f 144 #define IPH_V(hdr) (ntohs((hdr)->_v_hl_tos) >> 12)
damir 0:a7a6a692162f 145 #define IPH_HL(hdr) ((ntohs((hdr)->_v_hl_tos) >> 8) & 0x0f)
damir 0:a7a6a692162f 146 #define IPH_TOS(hdr) (ntohs((hdr)->_v_hl_tos) & 0xff)
damir 0:a7a6a692162f 147 #define IPH_LEN(hdr) ((hdr)->_len)
damir 0:a7a6a692162f 148 #define IPH_ID(hdr) ((hdr)->_id)
damir 0:a7a6a692162f 149 #define IPH_OFFSET(hdr) ((hdr)->_offset)
damir 0:a7a6a692162f 150 #define IPH_TTL(hdr) ((hdr)->_ttl)
damir 0:a7a6a692162f 151 #define IPH_PROTO(hdr) ((hdr)->_proto)
damir 0:a7a6a692162f 152 #define IPH_CHKSUM(hdr) ((hdr)->_chksum)
damir 0:a7a6a692162f 153
damir 0:a7a6a692162f 154 #define IPH_VHLTOS_SET(hdr, v, hl, tos) (hdr)->_v_hl_tos = (htons(((v) << 12) | ((hl) << 8) | (tos)))
damir 0:a7a6a692162f 155 #define IPH_LEN_SET(hdr, len) (hdr)->_len = (len)
damir 0:a7a6a692162f 156 #define IPH_ID_SET(hdr, id) (hdr)->_id = (id)
damir 0:a7a6a692162f 157 #define IPH_OFFSET_SET(hdr, off) (hdr)->_offset = (off)
damir 0:a7a6a692162f 158 #define IPH_TTL_SET(hdr, ttl) (hdr)->_ttl = (u8_t)(ttl)
damir 0:a7a6a692162f 159 #define IPH_PROTO_SET(hdr, proto) (hdr)->_proto = (u8_t)(proto)
damir 0:a7a6a692162f 160 #define IPH_CHKSUM_SET(hdr, chksum) (hdr)->_chksum = (chksum)
damir 0:a7a6a692162f 161
damir 0:a7a6a692162f 162 /** The interface that provided the packet for the current callback invocation. */
damir 0:a7a6a692162f 163 extern struct netif *current_netif;
damir 0:a7a6a692162f 164 /** Header of the input packet currently being processed. */
damir 0:a7a6a692162f 165 extern const struct ip_hdr *current_header;
damir 0:a7a6a692162f 166 /** Source IP address of current_header */
damir 0:a7a6a692162f 167 extern ip_addr_t current_iphdr_src;
damir 0:a7a6a692162f 168 /** Destination IP address of current_header */
damir 0:a7a6a692162f 169 extern ip_addr_t current_iphdr_dest;
damir 0:a7a6a692162f 170
damir 0:a7a6a692162f 171 #define ip_init() /* Compatibility define, not init needed. */
damir 0:a7a6a692162f 172 struct netif *ip_route(ip_addr_t *dest);
damir 0:a7a6a692162f 173 err_t ip_input(struct pbuf *p, struct netif *inp);
damir 0:a7a6a692162f 174 err_t ip_output(struct pbuf *p, ip_addr_t *src, ip_addr_t *dest,
damir 0:a7a6a692162f 175 u8_t ttl, u8_t tos, u8_t proto);
damir 0:a7a6a692162f 176 err_t ip_output_if(struct pbuf *p, ip_addr_t *src, ip_addr_t *dest,
damir 0:a7a6a692162f 177 u8_t ttl, u8_t tos, u8_t proto,
damir 0:a7a6a692162f 178 struct netif *netif);
damir 0:a7a6a692162f 179 #if LWIP_NETIF_HWADDRHINT
damir 0:a7a6a692162f 180 err_t ip_output_hinted(struct pbuf *p, ip_addr_t *src, ip_addr_t *dest,
damir 0:a7a6a692162f 181 u8_t ttl, u8_t tos, u8_t proto, u8_t *addr_hint);
damir 0:a7a6a692162f 182 #endif /* LWIP_NETIF_HWADDRHINT */
damir 0:a7a6a692162f 183 #if IP_OPTIONS_SEND
damir 0:a7a6a692162f 184 err_t ip_output_if_opt(struct pbuf *p, ip_addr_t *src, ip_addr_t *dest,
damir 0:a7a6a692162f 185 u8_t ttl, u8_t tos, u8_t proto, struct netif *netif, void *ip_options,
damir 0:a7a6a692162f 186 u16_t optlen);
damir 0:a7a6a692162f 187 #endif /* IP_OPTIONS_SEND */
damir 0:a7a6a692162f 188 /** Get the interface that received the current packet.
damir 0:a7a6a692162f 189 * This function must only be called from a receive callback (udp_recv,
damir 0:a7a6a692162f 190 * raw_recv, tcp_accept). It will return NULL otherwise. */
damir 0:a7a6a692162f 191 #define ip_current_netif() (current_netif)
damir 0:a7a6a692162f 192 /** Get the IP header of the current packet.
damir 0:a7a6a692162f 193 * This function must only be called from a receive callback (udp_recv,
damir 0:a7a6a692162f 194 * raw_recv, tcp_accept). It will return NULL otherwise. */
damir 0:a7a6a692162f 195 #define ip_current_header() (current_header)
damir 0:a7a6a692162f 196 /** Source IP address of current_header */
damir 0:a7a6a692162f 197 #define ip_current_src_addr() (&current_iphdr_src)
damir 0:a7a6a692162f 198 /** Destination IP address of current_header */
damir 0:a7a6a692162f 199 #define ip_current_dest_addr() (&current_iphdr_dest)
damir 0:a7a6a692162f 200
damir 0:a7a6a692162f 201 #if IP_DEBUG
damir 0:a7a6a692162f 202 void ip_debug_print(struct pbuf *p);
damir 0:a7a6a692162f 203 #else
damir 0:a7a6a692162f 204 #define ip_debug_print(p)
damir 0:a7a6a692162f 205 #endif /* IP_DEBUG */
damir 0:a7a6a692162f 206
damir 0:a7a6a692162f 207 #ifdef __cplusplus
damir 0:a7a6a692162f 208 }
damir 0:a7a6a692162f 209 #endif
damir 0:a7a6a692162f 210
damir 0:a7a6a692162f 211 #endif /* __LWIP_IP_H__ */
damir 0:a7a6a692162f 212
damir 0:a7a6a692162f 213