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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 | { |
d62a17ae | 44 | XFREE(MTYPE_RIPNG_PEER, peer); |
a94434b6 | 45 | } |
46 | ||
d62a17ae | 47 | struct ripng_peer *ripng_peer_lookup(struct in6_addr *addr) |
a94434b6 | 48 | { |
d62a17ae | 49 | struct ripng_peer *peer; |
50 | struct listnode *node, *nnode; | |
51 | ||
ecece94c | 52 | for (ALL_LIST_ELEMENTS(ripng->peer_list, node, nnode, peer)) { |
d62a17ae | 53 | if (IPV6_ADDR_SAME(&peer->addr, addr)) |
54 | return peer; | |
55 | } | |
56 | return NULL; | |
a94434b6 | 57 | } |
58 | ||
d62a17ae | 59 | struct ripng_peer *ripng_peer_lookup_next(struct in6_addr *addr) |
a94434b6 | 60 | { |
d62a17ae | 61 | struct ripng_peer *peer; |
62 | struct listnode *node, *nnode; | |
63 | ||
ecece94c | 64 | for (ALL_LIST_ELEMENTS(ripng->peer_list, node, nnode, peer)) { |
d62a17ae | 65 | if (addr6_cmp(&peer->addr, addr) > 0) |
66 | return peer; | |
67 | } | |
68 | return NULL; | |
a94434b6 | 69 | } |
70 | ||
71 | /* RIPng peer is timeout. | |
72 | * Garbage collector. | |
73 | **/ | |
d62a17ae | 74 | static int ripng_peer_timeout(struct thread *t) |
a94434b6 | 75 | { |
d62a17ae | 76 | struct ripng_peer *peer; |
a94434b6 | 77 | |
d62a17ae | 78 | peer = THREAD_ARG(t); |
ecece94c | 79 | listnode_delete(ripng->peer_list, peer); |
d62a17ae | 80 | ripng_peer_free(peer); |
a94434b6 | 81 | |
d62a17ae | 82 | return 0; |
a94434b6 | 83 | } |
84 | ||
85 | /* Get RIPng peer. At the same time update timeout thread. */ | |
d62a17ae | 86 | static struct ripng_peer *ripng_peer_get(struct in6_addr *addr) |
a94434b6 | 87 | { |
d62a17ae | 88 | struct ripng_peer *peer; |
89 | ||
90 | peer = ripng_peer_lookup(addr); | |
91 | ||
92 | if (peer) { | |
93 | if (peer->t_timeout) | |
94 | thread_cancel(peer->t_timeout); | |
95 | } else { | |
96 | peer = ripng_peer_new(); | |
97 | peer->addr = *addr; /* XXX */ | |
ecece94c | 98 | listnode_add_sort(ripng->peer_list, peer); |
d62a17ae | 99 | } |
100 | ||
101 | /* Update timeout thread. */ | |
102 | peer->t_timeout = NULL; | |
103 | thread_add_timer(master, ripng_peer_timeout, peer, | |
104 | RIPNG_PEER_TIMER_DEFAULT, &peer->t_timeout); | |
105 | ||
106 | /* Last update time set. */ | |
107 | time(&peer->uptime); | |
108 | ||
109 | return peer; | |
a94434b6 | 110 | } |
111 | ||
d7c0a89a | 112 | void ripng_peer_update(struct sockaddr_in6 *from, uint8_t version) |
a94434b6 | 113 | { |
d62a17ae | 114 | struct ripng_peer *peer; |
115 | peer = ripng_peer_get(&from->sin6_addr); | |
116 | peer->version = version; | |
a94434b6 | 117 | } |
118 | ||
d62a17ae | 119 | void ripng_peer_bad_route(struct sockaddr_in6 *from) |
a94434b6 | 120 | { |
d62a17ae | 121 | struct ripng_peer *peer; |
122 | peer = ripng_peer_get(&from->sin6_addr); | |
123 | peer->recv_badroutes++; | |
a94434b6 | 124 | } |
125 | ||
d62a17ae | 126 | void ripng_peer_bad_packet(struct sockaddr_in6 *from) |
a94434b6 | 127 | { |
d62a17ae | 128 | struct ripng_peer *peer; |
129 | peer = ripng_peer_get(&from->sin6_addr); | |
130 | peer->recv_badpackets++; | |
a94434b6 | 131 | } |
132 | ||
133 | /* Display peer uptime. */ | |
d62a17ae | 134 | static char *ripng_peer_uptime(struct ripng_peer *peer, char *buf, size_t len) |
a94434b6 | 135 | { |
d62a17ae | 136 | time_t uptime; |
137 | struct tm *tm; | |
138 | ||
139 | /* If there is no connection has been done before print `never'. */ | |
140 | if (peer->uptime == 0) { | |
141 | snprintf(buf, len, "never "); | |
142 | return buf; | |
143 | } | |
144 | ||
145 | /* Get current time. */ | |
146 | uptime = time(NULL); | |
147 | uptime -= peer->uptime; | |
148 | tm = gmtime(&uptime); | |
149 | ||
d62a17ae | 150 | if (uptime < ONE_DAY_SECOND) |
151 | snprintf(buf, len, "%02d:%02d:%02d", tm->tm_hour, tm->tm_min, | |
152 | tm->tm_sec); | |
153 | else if (uptime < ONE_WEEK_SECOND) | |
154 | snprintf(buf, len, "%dd%02dh%02dm", tm->tm_yday, tm->tm_hour, | |
155 | tm->tm_min); | |
156 | else | |
157 | snprintf(buf, len, "%02dw%dd%02dh", tm->tm_yday / 7, | |
158 | tm->tm_yday - ((tm->tm_yday / 7) * 7), tm->tm_hour); | |
159 | return buf; | |
a94434b6 | 160 | } |
161 | ||
d62a17ae | 162 | void ripng_peer_display(struct vty *vty) |
a94434b6 | 163 | { |
d62a17ae | 164 | struct ripng_peer *peer; |
165 | struct listnode *node, *nnode; | |
a94434b6 | 166 | #define RIPNG_UPTIME_LEN 25 |
d62a17ae | 167 | char timebuf[RIPNG_UPTIME_LEN]; |
168 | ||
ecece94c | 169 | for (ALL_LIST_ELEMENTS(ripng->peer_list, node, nnode, peer)) { |
d62a17ae | 170 | vty_out(vty, " %s \n%14s %10d %10d %10d %s\n", |
171 | inet6_ntoa(peer->addr), " ", peer->recv_badpackets, | |
172 | peer->recv_badroutes, ZEBRA_RIPNG_DISTANCE_DEFAULT, | |
173 | ripng_peer_uptime(peer, timebuf, RIPNG_UPTIME_LEN)); | |
174 | } | |
a94434b6 | 175 | } |
176 | ||
ecece94c | 177 | int ripng_peer_list_cmp(struct ripng_peer *p1, struct ripng_peer *p2) |
a94434b6 | 178 | { |
27fa3398 | 179 | return memcmp(&p1->addr, &p2->addr, sizeof(struct in6_addr)); |
a94434b6 | 180 | } |