UbixOS V2 2.0

autoip.h
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1
7 /*
8 *
9 * Copyright (c) 2007 Dominik Spies <kontakt@dspies.de>
10 * All rights reserved.
11 *
12 * Redistribution and use in source and binary forms, with or without modification,
13 * are permitted provided that the following conditions are met:
14 *
15 * 1. Redistributions of source code must retain the above copyright notice,
16 * this list of conditions and the following disclaimer.
17 * 2. Redistributions in binary form must reproduce the above copyright notice,
18 * this list of conditions and the following disclaimer in the documentation
19 * and/or other materials provided with the distribution.
20 * 3. The name of the author may not be used to endorse or promote products
21 * derived from this software without specific prior written permission.
22 *
23 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
24 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
25 * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
26 * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
27 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
28 * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
29 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
30 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
31 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
32 * OF SUCH DAMAGE.
33 *
34 * Author: Dominik Spies <kontakt@dspies.de>
35 *
36 * This is a AutoIP implementation for the lwIP TCP/IP stack. It aims to conform
37 * with RFC 3927.
38 *
39 */
40
41 #ifndef LWIP_HDR_AUTOIP_H
42 #define LWIP_HDR_AUTOIP_H
43
44 #include "net/opt.h"
45
46 #if LWIP_IPV4 && LWIP_AUTOIP /* don't build if not configured for use in lwipopts.h */
47
48 #include "net/netif.h"
49 /* #include "net/udp.h" */
50 #include "net/etharp.h"
51
52 #ifdef __cplusplus
53 extern "C" {
54 #endif
55
57 #define AUTOIP_TMR_INTERVAL 100
58 #define AUTOIP_TICKS_PER_SECOND (1000 / AUTOIP_TMR_INTERVAL)
59
61 struct autoip
62 {
64 ip4_addr_t llipaddr;
66 u8_t state;
68 u8_t sent_num;
70 u16_t ttw;
72 u8_t lastconflict;
74 u8_t tried_llipaddr;
75 };
76
77
78 void autoip_set_struct(struct netif *netif, struct autoip *autoip);
80 #define autoip_remove_struct(netif) do { (netif)->autoip = NULL; } while (0)
81 err_t autoip_start(struct netif *netif);
82 err_t autoip_stop(struct netif *netif);
83 void autoip_arp_reply(struct netif *netif, struct etharp_hdr *hdr);
84 void autoip_tmr(void);
85 void autoip_network_changed(struct netif *netif);
86 u8_t autoip_supplied_address(const struct netif *netif);
87
88 /* for lwIP internal use by ip4.c */
89 u8_t autoip_accept_packet(struct netif *netif, const ip4_addr_t *addr);
90
91 #define netif_autoip_data(netif) ((struct autoip*)netif_get_client_data(netif, LWIP_NETIF_CLIENT_DATA_INDEX_AUTOIP))
92
93 #ifdef __cplusplus
94 }
95 #endif
96
97 #endif /* LWIP_IPV4 && LWIP_AUTOIP */
98
99 #endif /* LWIP_HDR_AUTOIP_H */
opt.h
u16_t
uint16_t u16_t
Definition: arch.h:124
etharp_hdr
Definition: etharp.h:57
netif.h
u8_t
uint8_t u8_t
Definition: arch.h:122
netif
Definition: netif.h:233
err_t
s8_t err_t
Definition: err.h:57
etharp.h