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a94434b6 | 1 | /* RIPng peer support |
2 | * Copyright (C) 2000 Kunihiro Ishiguro <kunihiro@zebra.org> | |
3 | * | |
4 | * This file is part of GNU Zebra. | |
5 | * | |
6 | * GNU Zebra is free software; you can redistribute it and/or modify it | |
7 | * under the terms of the GNU General Public License as published by the | |
8 | * Free Software Foundation; either version 2, or (at your option) any | |
9 | * later version. | |
10 | * | |
11 | * GNU Zebra is distributed in the hope that it will be useful, but | |
12 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
14 | * General Public License for more details. | |
15 | * | |
896014f4 DL |
16 | * You should have received a copy of the GNU General Public License along |
17 | * with this program; see the file COPYING; if not, write to the Free Software | |
18 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
a94434b6 | 19 | */ |
20 | ||
21 | /* RIPng support added by Vincent Jardin <vincent.jardin@6wind.com> | |
22 | * Copyright (C) 2002 6WIND | |
23 | */ | |
24 | ||
25 | #include <zebra.h> | |
26 | ||
27 | #include "if.h" | |
28 | #include "prefix.h" | |
29 | #include "command.h" | |
30 | #include "linklist.h" | |
31 | #include "thread.h" | |
32 | #include "memory.h" | |
33 | ||
34 | #include "ripngd/ripngd.h" | |
35 | #include "ripngd/ripng_nexthop.h" | |
36 | ||
d62a17ae | 37 | static struct ripng_peer *ripng_peer_new(void) |
a94434b6 | 38 | { |
d62a17ae | 39 | return XCALLOC(MTYPE_RIPNG_PEER, sizeof(struct ripng_peer)); |
a94434b6 | 40 | } |
41 | ||
d62a17ae | 42 | static void ripng_peer_free(struct ripng_peer *peer) |
a94434b6 | 43 | { |
56bf1cb2 | 44 | RIPNG_TIMER_OFF(peer->t_timeout); |
d62a17ae | 45 | XFREE(MTYPE_RIPNG_PEER, peer); |
a94434b6 | 46 | } |
47 | ||
5c84b9a5 | 48 | struct ripng_peer *ripng_peer_lookup(struct ripng *ripng, struct in6_addr *addr) |
a94434b6 | 49 | { |
d62a17ae | 50 | struct ripng_peer *peer; |
51 | struct listnode *node, *nnode; | |
52 | ||
ecece94c | 53 | for (ALL_LIST_ELEMENTS(ripng->peer_list, node, nnode, peer)) { |
d62a17ae | 54 | if (IPV6_ADDR_SAME(&peer->addr, addr)) |
55 | return peer; | |
56 | } | |
57 | return NULL; | |
a94434b6 | 58 | } |
59 | ||
5c84b9a5 RW |
60 | struct ripng_peer *ripng_peer_lookup_next(struct ripng *ripng, |
61 | struct in6_addr *addr) | |
a94434b6 | 62 | { |
d62a17ae | 63 | struct ripng_peer *peer; |
64 | struct listnode *node, *nnode; | |
65 | ||
ecece94c | 66 | for (ALL_LIST_ELEMENTS(ripng->peer_list, node, nnode, peer)) { |
d62a17ae | 67 | if (addr6_cmp(&peer->addr, addr) > 0) |
68 | return peer; | |
69 | } | |
70 | return NULL; | |
a94434b6 | 71 | } |
72 | ||
73 | /* RIPng peer is timeout. | |
74 | * Garbage collector. | |
75 | **/ | |
d62a17ae | 76 | static int ripng_peer_timeout(struct thread *t) |
a94434b6 | 77 | { |
d62a17ae | 78 | struct ripng_peer *peer; |
a94434b6 | 79 | |
d62a17ae | 80 | peer = THREAD_ARG(t); |
5c84b9a5 | 81 | listnode_delete(peer->ripng->peer_list, peer); |
d62a17ae | 82 | ripng_peer_free(peer); |
a94434b6 | 83 | |
d62a17ae | 84 | return 0; |
a94434b6 | 85 | } |
86 | ||
87 | /* Get RIPng peer. At the same time update timeout thread. */ | |
5c84b9a5 RW |
88 | static struct ripng_peer *ripng_peer_get(struct ripng *ripng, |
89 | struct in6_addr *addr) | |
a94434b6 | 90 | { |
d62a17ae | 91 | struct ripng_peer *peer; |
92 | ||
5c84b9a5 | 93 | peer = ripng_peer_lookup(ripng, addr); |
d62a17ae | 94 | |
95 | if (peer) { | |
96 | if (peer->t_timeout) | |
97 | thread_cancel(peer->t_timeout); | |
98 | } else { | |
99 | peer = ripng_peer_new(); | |
5c84b9a5 RW |
100 | peer->ripng = ripng; |
101 | peer->addr = *addr; | |
ecece94c | 102 | listnode_add_sort(ripng->peer_list, peer); |
d62a17ae | 103 | } |
104 | ||
105 | /* Update timeout thread. */ | |
106 | peer->t_timeout = NULL; | |
107 | thread_add_timer(master, ripng_peer_timeout, peer, | |
108 | RIPNG_PEER_TIMER_DEFAULT, &peer->t_timeout); | |
109 | ||
110 | /* Last update time set. */ | |
111 | time(&peer->uptime); | |
112 | ||
113 | return peer; | |
a94434b6 | 114 | } |
115 | ||
5c84b9a5 RW |
116 | void ripng_peer_update(struct ripng *ripng, struct sockaddr_in6 *from, |
117 | uint8_t version) | |
a94434b6 | 118 | { |
d62a17ae | 119 | struct ripng_peer *peer; |
5c84b9a5 | 120 | peer = ripng_peer_get(ripng, &from->sin6_addr); |
d62a17ae | 121 | peer->version = version; |
a94434b6 | 122 | } |
123 | ||
5c84b9a5 | 124 | void ripng_peer_bad_route(struct ripng *ripng, struct sockaddr_in6 *from) |
a94434b6 | 125 | { |
d62a17ae | 126 | struct ripng_peer *peer; |
5c84b9a5 | 127 | peer = ripng_peer_get(ripng, &from->sin6_addr); |
d62a17ae | 128 | peer->recv_badroutes++; |
a94434b6 | 129 | } |
130 | ||
5c84b9a5 | 131 | void ripng_peer_bad_packet(struct ripng *ripng, struct sockaddr_in6 *from) |
a94434b6 | 132 | { |
d62a17ae | 133 | struct ripng_peer *peer; |
5c84b9a5 | 134 | peer = ripng_peer_get(ripng, &from->sin6_addr); |
d62a17ae | 135 | peer->recv_badpackets++; |
a94434b6 | 136 | } |
137 | ||
138 | /* Display peer uptime. */ | |
d62a17ae | 139 | static char *ripng_peer_uptime(struct ripng_peer *peer, char *buf, size_t len) |
a94434b6 | 140 | { |
d62a17ae | 141 | time_t uptime; |
142 | struct tm *tm; | |
143 | ||
144 | /* If there is no connection has been done before print `never'. */ | |
145 | if (peer->uptime == 0) { | |
146 | snprintf(buf, len, "never "); | |
147 | return buf; | |
148 | } | |
149 | ||
150 | /* Get current time. */ | |
151 | uptime = time(NULL); | |
152 | uptime -= peer->uptime; | |
153 | tm = gmtime(&uptime); | |
154 | ||
d62a17ae | 155 | if (uptime < ONE_DAY_SECOND) |
156 | snprintf(buf, len, "%02d:%02d:%02d", tm->tm_hour, tm->tm_min, | |
157 | tm->tm_sec); | |
158 | else if (uptime < ONE_WEEK_SECOND) | |
159 | snprintf(buf, len, "%dd%02dh%02dm", tm->tm_yday, tm->tm_hour, | |
160 | tm->tm_min); | |
161 | else | |
162 | snprintf(buf, len, "%02dw%dd%02dh", tm->tm_yday / 7, | |
163 | tm->tm_yday - ((tm->tm_yday / 7) * 7), tm->tm_hour); | |
164 | return buf; | |
a94434b6 | 165 | } |
166 | ||
5c84b9a5 | 167 | void ripng_peer_display(struct vty *vty, struct ripng *ripng) |
a94434b6 | 168 | { |
d62a17ae | 169 | struct ripng_peer *peer; |
170 | struct listnode *node, *nnode; | |
a94434b6 | 171 | #define RIPNG_UPTIME_LEN 25 |
d62a17ae | 172 | char timebuf[RIPNG_UPTIME_LEN]; |
173 | ||
ecece94c | 174 | for (ALL_LIST_ELEMENTS(ripng->peer_list, node, nnode, peer)) { |
d62a17ae | 175 | vty_out(vty, " %s \n%14s %10d %10d %10d %s\n", |
176 | inet6_ntoa(peer->addr), " ", peer->recv_badpackets, | |
177 | peer->recv_badroutes, ZEBRA_RIPNG_DISTANCE_DEFAULT, | |
178 | ripng_peer_uptime(peer, timebuf, RIPNG_UPTIME_LEN)); | |
179 | } | |
a94434b6 | 180 | } |
181 | ||
ecece94c | 182 | int ripng_peer_list_cmp(struct ripng_peer *p1, struct ripng_peer *p2) |
a94434b6 | 183 | { |
27fa3398 | 184 | return memcmp(&p1->addr, &p2->addr, sizeof(struct in6_addr)); |
a94434b6 | 185 | } |
56bf1cb2 RW |
186 | |
187 | void ripng_peer_list_del(void *arg) | |
188 | { | |
189 | ripng_peer_free(arg); | |
190 | } |