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ip4.h
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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 *src, const ip4_addr_t *dest);
68 #else /* LWIP_IPV4_SRC_ROUTING */
69 #define ip4_route_src(src, dest) 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_USE_HINTS
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, struct netif_hint *netif_hint);
81 #endif /* LWIP_NETIF_USE_HINTS */
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 
def.h
various utility macros
ip4.h
IPv4 protocol definitions.
ip4_addr.h
IPv4 address API.
opt.h
lwIP Options Configuration
netif.h
netif API (to be used from TCPIP thread)
pbuf
Main packet buffer struct.
Definition: ppp_service_if.h:136
err.h
lwIP Error codes
netif
Generic data structure used for all lwIP network interfaces.
Definition: ppp_service_if.h:157
pbuf.h
pbuf API
nsapi_addr
IP address structure for passing IP addresses by value.
Definition: nsapi_types.h:235
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