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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 | * | |
16 | * You should have received a copy of the GNU General Public License | |
17 | * along with GNU Zebra; see the file COPYING. If not, write to the Free | |
18 | * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA | |
19 | * 02111-1307, USA. | |
20 | */ | |
21 | ||
22 | /* RIPng support added by Vincent Jardin <vincent.jardin@6wind.com> | |
23 | * Copyright (C) 2002 6WIND | |
24 | */ | |
25 | ||
26 | #include <zebra.h> | |
27 | ||
28 | #include "if.h" | |
29 | #include "prefix.h" | |
30 | #include "command.h" | |
31 | #include "linklist.h" | |
32 | #include "thread.h" | |
33 | #include "memory.h" | |
34 | ||
35 | #include "ripngd/ripngd.h" | |
36 | #include "ripngd/ripng_nexthop.h" | |
37 | ||
38 | ||
39 | /* Linked list of RIPng peer. */ | |
40 | struct list *peer_list; | |
41 | \f | |
42 | struct ripng_peer * | |
43 | ripng_peer_new () | |
44 | { | |
45 | struct ripng_peer *new; | |
46 | ||
47 | new = XMALLOC (MTYPE_RIPNG_PEER, sizeof (struct ripng_peer)); | |
48 | memset (new, 0, sizeof (struct ripng_peer)); | |
49 | return new; | |
50 | } | |
51 | ||
52 | void | |
53 | ripng_peer_free (struct ripng_peer *peer) | |
54 | { | |
55 | XFREE (MTYPE_RIPNG_PEER, peer); | |
56 | } | |
57 | ||
58 | struct ripng_peer * | |
59 | ripng_peer_lookup (struct in6_addr *addr) | |
60 | { | |
61 | struct ripng_peer *peer; | |
1eb8ef25 | 62 | struct listnode *node, *nnode; |
a94434b6 | 63 | |
1eb8ef25 | 64 | for (ALL_LIST_ELEMENTS (peer_list, node, nnode, peer)) |
a94434b6 | 65 | { |
66 | if (IPV6_ADDR_SAME (&peer->addr, addr)) | |
67 | return peer; | |
68 | } | |
69 | return NULL; | |
70 | } | |
71 | ||
72 | struct ripng_peer * | |
73 | ripng_peer_lookup_next (struct in6_addr *addr) | |
74 | { | |
75 | struct ripng_peer *peer; | |
1eb8ef25 | 76 | struct listnode *node, *nnode; |
a94434b6 | 77 | |
1eb8ef25 | 78 | for (ALL_LIST_ELEMENTS (peer_list, node, nnode, peer)) |
a94434b6 | 79 | { |
80 | if (addr6_cmp(&peer->addr, addr) > 0) | |
81 | return peer; | |
82 | } | |
83 | return NULL; | |
84 | } | |
85 | ||
86 | /* RIPng peer is timeout. | |
87 | * Garbage collector. | |
88 | **/ | |
89 | int | |
90 | ripng_peer_timeout (struct thread *t) | |
91 | { | |
92 | struct ripng_peer *peer; | |
93 | ||
94 | peer = THREAD_ARG (t); | |
95 | listnode_delete (peer_list, peer); | |
96 | ripng_peer_free (peer); | |
97 | ||
98 | return 0; | |
99 | } | |
100 | ||
101 | /* Get RIPng peer. At the same time update timeout thread. */ | |
102 | struct ripng_peer * | |
103 | ripng_peer_get (struct in6_addr *addr) | |
104 | { | |
105 | struct ripng_peer *peer; | |
106 | ||
107 | peer = ripng_peer_lookup (addr); | |
108 | ||
109 | if (peer) | |
110 | { | |
111 | if (peer->t_timeout) | |
112 | thread_cancel (peer->t_timeout); | |
113 | } | |
114 | else | |
115 | { | |
116 | peer = ripng_peer_new (); | |
117 | peer->addr = *addr; /* XXX */ | |
118 | listnode_add_sort (peer_list, peer); | |
119 | } | |
120 | ||
121 | /* Update timeout thread. */ | |
122 | peer->t_timeout = thread_add_timer (master, ripng_peer_timeout, peer, | |
123 | RIPNG_PEER_TIMER_DEFAULT); | |
124 | ||
125 | /* Last update time set. */ | |
126 | time (&peer->uptime); | |
127 | ||
128 | return peer; | |
129 | } | |
130 | ||
131 | void | |
132 | ripng_peer_update (struct sockaddr_in6 *from, u_char version) | |
133 | { | |
134 | struct ripng_peer *peer; | |
135 | peer = ripng_peer_get (&from->sin6_addr); | |
136 | peer->version = version; | |
137 | } | |
138 | ||
139 | void | |
140 | ripng_peer_bad_route (struct sockaddr_in6 *from) | |
141 | { | |
142 | struct ripng_peer *peer; | |
143 | peer = ripng_peer_get (&from->sin6_addr); | |
144 | peer->recv_badroutes++; | |
145 | } | |
146 | ||
147 | void | |
148 | ripng_peer_bad_packet (struct sockaddr_in6 *from) | |
149 | { | |
150 | struct ripng_peer *peer; | |
151 | peer = ripng_peer_get (&from->sin6_addr); | |
152 | peer->recv_badpackets++; | |
153 | } | |
154 | ||
155 | /* Display peer uptime. */ | |
156 | char * | |
157 | ripng_peer_uptime (struct ripng_peer *peer, char *buf, size_t len) | |
158 | { | |
159 | time_t uptime; | |
160 | struct tm *tm; | |
161 | ||
162 | /* If there is no connection has been done before print `never'. */ | |
163 | if (peer->uptime == 0) | |
164 | { | |
165 | snprintf (buf, len, "never "); | |
166 | return buf; | |
167 | } | |
168 | ||
169 | /* Get current time. */ | |
170 | uptime = time (NULL); | |
171 | uptime -= peer->uptime; | |
172 | tm = gmtime (&uptime); | |
173 | ||
174 | /* Making formatted timer strings. */ | |
175 | #define ONE_DAY_SECOND 60*60*24 | |
176 | #define ONE_WEEK_SECOND 60*60*24*7 | |
177 | ||
178 | if (uptime < ONE_DAY_SECOND) | |
179 | snprintf (buf, len, "%02d:%02d:%02d", | |
180 | tm->tm_hour, tm->tm_min, tm->tm_sec); | |
181 | else if (uptime < ONE_WEEK_SECOND) | |
182 | snprintf (buf, len, "%dd%02dh%02dm", | |
183 | tm->tm_yday, tm->tm_hour, tm->tm_min); | |
184 | else | |
185 | snprintf (buf, len, "%02dw%dd%02dh", | |
186 | tm->tm_yday/7, tm->tm_yday - ((tm->tm_yday/7) * 7), tm->tm_hour); | |
187 | return buf; | |
188 | } | |
189 | ||
190 | void | |
191 | ripng_peer_display (struct vty *vty) | |
192 | { | |
193 | struct ripng_peer *peer; | |
1eb8ef25 | 194 | struct listnode *node, *nnode; |
a94434b6 | 195 | #define RIPNG_UPTIME_LEN 25 |
196 | char timebuf[RIPNG_UPTIME_LEN]; | |
197 | ||
1eb8ef25 | 198 | for (ALL_LIST_ELEMENTS (peer_list, node, nnode, peer)) |
a94434b6 | 199 | { |
3a2ce6a1 | 200 | vty_out (vty, " %s %s%14s %10d %10d %10d %s%s", inet6_ntoa (peer->addr), |
a94434b6 | 201 | VTY_NEWLINE, " ", |
202 | peer->recv_badpackets, peer->recv_badroutes, | |
203 | ZEBRA_RIPNG_DISTANCE_DEFAULT, | |
204 | ripng_peer_uptime (peer, timebuf, RIPNG_UPTIME_LEN), | |
205 | VTY_NEWLINE); | |
206 | } | |
207 | } | |
208 | ||
209 | int | |
210 | ripng_peer_list_cmp (struct ripng_peer *p1, struct ripng_peer *p2) | |
211 | { | |
212 | return addr6_cmp(&p1->addr, &p2->addr) > 0; | |
213 | } | |
214 | ||
215 | void | |
216 | ripng_peer_init () | |
217 | { | |
218 | peer_list = list_new (); | |
219 | peer_list->cmp = (int (*)(void *, void *)) ripng_peer_list_cmp; | |
220 | } |