ReactOS  0.4.15-dev-439-g292f67a
ip.h
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1 /*
2  * Copyright (c) 2001-2004 Swedish Institute of Computer Science.
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without modification,
6  * are permitted provided that the following conditions are met:
7  *
8  * 1. Redistributions of source code must retain the above copyright notice,
9  * this list of conditions and the following disclaimer.
10  * 2. Redistributions in binary form must reproduce the above copyright notice,
11  * this list of conditions and the following disclaimer in the documentation
12  * and/or other materials provided with the distribution.
13  * 3. The name of the author may not be used to endorse or promote products
14  * derived from this software without specific prior written permission.
15  *
16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
17  * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
18  * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
19  * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
20  * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
21  * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
22  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
23  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
24  * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
25  * OF SUCH DAMAGE.
26  *
27  * This file is part of the lwIP TCP/IP stack.
28  *
29  * Author: Adam Dunkels <adam@sics.se>
30  *
31  */
32 #ifndef __LWIP_IP_H__
33 #define __LWIP_IP_H__
34 
35 #include "lwip/opt.h"
36 #include "lwip/def.h"
37 #include "lwip/pbuf.h"
38 #include "lwip/ip_addr.h"
39 
40 #include "lwip/err.h"
41 
42 #ifdef __cplusplus
43 extern "C" {
44 #endif
45 
46 #define IP_HLEN 40
47 
48 #define IP_PROTO_ICMP 58
49 #define IP_PROTO_UDP 17
50 #define IP_PROTO_UDPLITE 136
51 #define IP_PROTO_TCP 6
52 
53 /* This is passed as the destination address to ip_output_if (not
54  to ip_output), meaning that an IP header already is constructed
55  in the pbuf. This is used when TCP retransmits. */
56 #ifdef IP_HDRINCL
57 #undef IP_HDRINCL
58 #endif /* IP_HDRINCL */
59 #define IP_HDRINCL NULL
60 
61 #if LWIP_NETIF_HWADDRHINT
62 #define IP_PCB_ADDRHINT ;u8_t addr_hint
63 #else
64 #define IP_PCB_ADDRHINT
65 #endif /* LWIP_NETIF_HWADDRHINT */
66 
67 /* This is the common part of all PCB types. It needs to be at the
68  beginning of a PCB type definition. It is located here so that
69  changes to this common part are made in one location instead of
70  having to change all PCB structs. */
71 #define IP_PCB struct ip_addr local_ip; \
72  struct ip_addr remote_ip; \
73  /* Socket options */ \
74  u16_t so_options; \
75  /* Type Of Service */ \
76  u8_t tos; \
77  /* Time To Live */ \
78  u8_t ttl; \
79  /* link layer address resolution hint */ \
80  IP_PCB_ADDRHINT
81 
82 
83 /* The IPv6 header. */
84 struct ip_hdr {
85 #if BYTE_ORDER == LITTLE_ENDIAN
86  u8_t tclass1:4, v:4;
88 #else
89  u8_t v:4, tclass1:4;
90  u8_t tclass2:8, flow1:4;
91 #endif
93  u16_t len; /* payload length */
94  u8_t nexthdr; /* next header */
95  u8_t hoplim; /* hop limit (TTL) */
96  struct ip_addr src, dest; /* source and destination IP addresses */
97 };
98 
99 #define IPH_PROTO(hdr) (iphdr->nexthdr)
100 
101 void ip_init(void);
102 
103 #include "lwip/netif.h"
104 
105 struct netif *ip_route(struct ip_addr *dest);
106 
107 void ip_input(struct pbuf *p, struct netif *inp);
108 
109 /* source and destination addresses in network byte order, please */
110 err_t ip_output(struct pbuf *p, struct ip_addr *src, struct ip_addr *dest,
111  u8_t ttl, u8_t proto);
112 
113 err_t ip_output_if(struct pbuf *p, struct ip_addr *src, struct ip_addr *dest,
114  u8_t ttl, u8_t proto,
115  struct netif *netif);
116 
117 #define ip_current_netif() NULL
118 #define ip_current_header() NULL
119 
120 #if IP_DEBUG
121 void ip_debug_print(struct pbuf *p);
122 #endif /* IP_DEBUG */
123 
124 #ifdef __cplusplus
125 }
126 #endif
127 
128 #endif /* __LWIP_IP_H__ */
129 
130 
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)
Definition: ip.c:641
u8_t tclass1
Definition: ip.h:86
err_t ip_output(struct pbuf *p, ip_addr_t *src, ip_addr_t *dest, u8_t ttl, u8_t tos, u8_t proto)
Definition: ip.c:818
s8_t err_t
Definition: err.h:47
u16_t len
Definition: ip.h:93
Definition: pbuf.h:79
u8_t hoplim
Definition: ip.h:95
u8_t nexthdr
Definition: ip.h:94
Definition: netif.h:136
struct netif * ip_route(ip_addr_t *dest)
Definition: ip.c:124
struct ip_addr src dest
Definition: ip.h:96
err_t ip_input(struct pbuf *p, struct netif *inp)
Definition: ip.c:305
GLenum src
Definition: glext.h:6340
void ip_init(void)
Definition: ip6.c:63
u8_t tclass2
Definition: ip.h:87
Definition: ip.h:116
unsigned char u8_t
Definition: cc.h:23
u8_t v
Definition: ip.h:86
#define ip_debug_print(p)
Definition: ip.h:214
static char * dest
Definition: rtl.c:135
unsigned short u16_t
Definition: cc.h:24
u8_t flow1
Definition: ip.h:87
GLfloat GLfloat p
Definition: glext.h:8902
u16_t flow2
Definition: ip.h:92