diff options
Diffstat (limited to 'ripngd/ripng_peer.c')
| -rw-r--r-- | ripngd/ripng_peer.c | 220 |
1 files changed, 220 insertions, 0 deletions
diff --git a/ripngd/ripng_peer.c b/ripngd/ripng_peer.c new file mode 100644 index 00000000..b9af930c --- /dev/null +++ b/ripngd/ripng_peer.c @@ -0,0 +1,220 @@ +/* RIPng peer support + * Copyright (C) 2000 Kunihiro Ishiguro <kunihiro@zebra.org> + * + * This file is part of GNU Zebra. + * + * GNU Zebra is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License as published by the + * Free Software Foundation; either version 2, or (at your option) any + * later version. + * + * GNU Zebra is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with GNU Zebra; see the file COPYING. If not, write to the Free + * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA + * 02111-1307, USA. + */ + +/* RIPng support added by Vincent Jardin <vincent.jardin@6wind.com> + * Copyright (C) 2002 6WIND + */ + +#include <zebra.h> + +#include "if.h" +#include "prefix.h" +#include "command.h" +#include "linklist.h" +#include "thread.h" +#include "memory.h" + +#include "ripngd/ripngd.h" +#include "ripngd/ripng_nexthop.h" + + +/* Linked list of RIPng peer. */ +struct list *peer_list; + +struct ripng_peer * +ripng_peer_new () +{ + struct ripng_peer *new; + + new = XMALLOC (MTYPE_RIPNG_PEER, sizeof (struct ripng_peer)); + memset (new, 0, sizeof (struct ripng_peer)); + return new; +} + +void +ripng_peer_free (struct ripng_peer *peer) +{ + XFREE (MTYPE_RIPNG_PEER, peer); +} + +struct ripng_peer * +ripng_peer_lookup (struct in6_addr *addr) +{ + struct ripng_peer *peer; + struct listnode *nn; + + LIST_LOOP (peer_list, peer, nn) + { + if (IPV6_ADDR_SAME (&peer->addr, addr)) + return peer; + } + return NULL; +} + +struct ripng_peer * +ripng_peer_lookup_next (struct in6_addr *addr) +{ + struct ripng_peer *peer; + struct listnode *nn; + + LIST_LOOP (peer_list, peer, nn) + { + if (addr6_cmp(&peer->addr, addr) > 0) + return peer; + } + return NULL; +} + +/* RIPng peer is timeout. + * Garbage collector. + **/ +int +ripng_peer_timeout (struct thread *t) +{ + struct ripng_peer *peer; + + peer = THREAD_ARG (t); + listnode_delete (peer_list, peer); + ripng_peer_free (peer); + + return 0; +} + +/* Get RIPng peer. At the same time update timeout thread. */ +struct ripng_peer * +ripng_peer_get (struct in6_addr *addr) +{ + struct ripng_peer *peer; + + peer = ripng_peer_lookup (addr); + + if (peer) + { + if (peer->t_timeout) + thread_cancel (peer->t_timeout); + } + else + { + peer = ripng_peer_new (); + peer->addr = *addr; /* XXX */ + listnode_add_sort (peer_list, peer); + } + + /* Update timeout thread. */ + peer->t_timeout = thread_add_timer (master, ripng_peer_timeout, peer, + RIPNG_PEER_TIMER_DEFAULT); + + /* Last update time set. */ + time (&peer->uptime); + + return peer; +} + +void +ripng_peer_update (struct sockaddr_in6 *from, u_char version) +{ + struct ripng_peer *peer; + peer = ripng_peer_get (&from->sin6_addr); + peer->version = version; +} + +void +ripng_peer_bad_route (struct sockaddr_in6 *from) +{ + struct ripng_peer *peer; + peer = ripng_peer_get (&from->sin6_addr); + peer->recv_badroutes++; +} + +void +ripng_peer_bad_packet (struct sockaddr_in6 *from) +{ + struct ripng_peer *peer; + peer = ripng_peer_get (&from->sin6_addr); + peer->recv_badpackets++; +} + +/* Display peer uptime. */ +char * +ripng_peer_uptime (struct ripng_peer *peer, char *buf, size_t len) +{ + time_t uptime; + struct tm *tm; + + /* If there is no connection has been done before print `never'. */ + if (peer->uptime == 0) + { + snprintf (buf, len, "never "); + return buf; + } + + /* Get current time. */ + uptime = time (NULL); + uptime -= peer->uptime; + tm = gmtime (&uptime); + + /* Making formatted timer strings. */ +#define ONE_DAY_SECOND 60*60*24 +#define ONE_WEEK_SECOND 60*60*24*7 + + if (uptime < ONE_DAY_SECOND) + snprintf (buf, len, "%02d:%02d:%02d", + tm->tm_hour, tm->tm_min, tm->tm_sec); + else if (uptime < ONE_WEEK_SECOND) + snprintf (buf, len, "%dd%02dh%02dm", + tm->tm_yday, tm->tm_hour, tm->tm_min); + else + snprintf (buf, len, "%02dw%dd%02dh", + tm->tm_yday/7, tm->tm_yday - ((tm->tm_yday/7) * 7), tm->tm_hour); + return buf; +} + +void +ripng_peer_display (struct vty *vty) +{ + struct ripng_peer *peer; + struct listnode *nn; +#define RIPNG_UPTIME_LEN 25 + char timebuf[RIPNG_UPTIME_LEN]; + + LIST_LOOP (peer_list, peer, nn) + { + vty_out (vty, " %s %s%14s %10d %10d %10d %s%s", inet6_ntop (&peer->addr), + VTY_NEWLINE, " ", + peer->recv_badpackets, peer->recv_badroutes, + ZEBRA_RIPNG_DISTANCE_DEFAULT, + ripng_peer_uptime (peer, timebuf, RIPNG_UPTIME_LEN), + VTY_NEWLINE); + } +} + +int +ripng_peer_list_cmp (struct ripng_peer *p1, struct ripng_peer *p2) +{ + return addr6_cmp(&p1->addr, &p2->addr) > 0; +} + +void +ripng_peer_init () +{ + peer_list = list_new (); + peer_list->cmp = (int (*)(void *, void *)) ripng_peer_list_cmp; +} |