diff options
| author | Henning Brauer <henning@cvs.openbsd.org> | 2003-12-25 19:24:47 +0000 |
|---|---|---|
| committer | Henning Brauer <henning@cvs.openbsd.org> | 2003-12-25 19:24:47 +0000 |
| commit | dd1e1635fea390664a952099ef875a12d5357117 (patch) | |
| tree | 1c99304e76ec329d4f5aa7f22e526fd535fb77a3 /usr.sbin/bgpd/kroute.c | |
| parent | b5c060b5073014283a6e0b15aeb56360882dfcdc (diff) | |
detect connected routes and flag them as such
Diffstat (limited to 'usr.sbin/bgpd/kroute.c')
| -rw-r--r-- | usr.sbin/bgpd/kroute.c | 35 |
1 files changed, 23 insertions, 12 deletions
diff --git a/usr.sbin/bgpd/kroute.c b/usr.sbin/bgpd/kroute.c index 890b54b70c4..42f76b39f62 100644 --- a/usr.sbin/bgpd/kroute.c +++ b/usr.sbin/bgpd/kroute.c @@ -1,4 +1,4 @@ -/* $OpenBSD: kroute.c,v 1.19 2003/12/25 17:07:24 henning Exp $ */ +/* $OpenBSD: kroute.c,v 1.20 2003/12/25 19:24:46 henning Exp $ */ /* * Copyright (c) 2003 Henning Brauer <henning@openbsd.org> @@ -56,6 +56,7 @@ pid_t pid; #define F_BGPD_INSERTED 0x0001 #define F_KERNEL 0x0002 +#define F_CONNECTED 0x0004 int kroute_init(void) @@ -299,6 +300,7 @@ kroute_fetchtable(void) if ((kr = calloc(1, sizeof(struct kroute_node))) == NULL) fatal(NULL, errno); + kr->flags = F_KERNEL; kr->r.prefix = sa_in->sin_addr.s_addr; if ((sa_in = (struct sockaddr_in *)rti_info[RTAX_NETMASK]) != NULL) { @@ -310,10 +312,12 @@ kroute_fetchtable(void) kr->r.prefixlen = prefixlen_classful(kr->r.prefix); if ((sa_in = (struct sockaddr_in *)rti_info[RTAX_GATEWAY]) != - NULL) - kr->r.nexthop = sa_in->sin_addr.s_addr; - - kr->flags = F_KERNEL; + NULL) { + if (sa_in->sin_family == AF_INET) + kr->r.nexthop = sa_in->sin_addr.s_addr; + else if (sa_in->sin_family == AF_LINK) + kr->flags |= F_CONNECTED; + } if (RB_INSERT(kroute_tree, &krt, kr) != NULL) { logit(LOG_CRIT, "RB_INSERT failed!"); @@ -335,6 +339,7 @@ kroute_dispatch_msg(int fd) struct sockaddr_in *sa_in; struct kroute_node *kr, s; in_addr_t nexthop; + int flags; if ((n = read(fd, &buf, sizeof(buf))) == -1) fatal("read error on routing socket", errno); @@ -346,6 +351,8 @@ kroute_dispatch_msg(int fd) rtm = (struct rt_msghdr *)next; sa = (struct sockaddr *)(rtm + 1); get_rtaddrs(rtm->rtm_addrs, sa, rti_info); + flags = F_KERNEL; + nexthop = 0; if ((sa_in = (struct sockaddr_in *)rti_info[RTAX_DST]) == NULL) continue; @@ -370,10 +377,12 @@ kroute_dispatch_msg(int fd) s.r.prefixlen = prefixlen_classful(s.r.prefix); if ((sa_in = (struct sockaddr_in *)rti_info[RTAX_GATEWAY]) != - NULL) - nexthop = sa_in->sin_addr.s_addr; - else - nexthop = 0; + NULL) { + if (sa_in->sin_family == AF_INET) + nexthop = sa_in->sin_addr.s_addr; + else if (sa_in->sin_family == AF_LINK) + flags |= F_CONNECTED; + } switch (rtm->rtm_type) { case RTM_ADD: @@ -382,16 +391,18 @@ kroute_dispatch_msg(int fd) fatal("nexthop is 0 in kroute_dispatch!", 0); if ((kr = RB_FIND(kroute_tree, &krt, &s)) != NULL) { - if (kr->flags & F_KERNEL) + if (kr->flags & F_KERNEL) { kr->r.nexthop = nexthop; + kr->flags = flags; + } } else { if ((kr = calloc(1, - sizeof(struct kroute_node))) == NULL) + sizeof(struct kroute_node))) == NULL) fatal(NULL, errno); kr->r.prefix = s.r.prefix; kr->r.prefixlen = s.r.prefixlen; kr->r.nexthop = nexthop; - kr->flags = F_KERNEL; + kr->flags = flags; if (RB_INSERT(kroute_tree, &krt, kr) != NULL) { logit(LOG_CRIT, "RB_INSERT failed!"); |