+/*
+ * This routine is called to generate a message from the routing
+ * socket indicating that the status of a network interface has changed.
+ */
+rt_ifmsg(ifp)
+ register struct ifnet *ifp;
+{
+ register struct if_msghdr *ifm;
+ struct mbuf *m;
+ struct rt_addrinfo info;
+
+ if (route_cb.any_count == 0)
+ return;
+ bzero((caddr_t)&info, sizeof(info));
+ m = rt_msg1(RTM_IFINFO, &info);
+ if (m == 0)
+ return;
+ ifm = mtod(m, struct if_msghdr *);
+ ifm->ifm_index = ifp->if_index;
+ ifm->ifm_flags = ifp->if_flags;
+ ifm->ifm_data = ifp->if_data;
+ ifm->ifm_addrs = 0;
+ route_proto.sp_protocol = 0;
+ raw_input(m, &route_proto, &route_src, &route_dst);
+}
+
+/*
+ * This is called to generate messages from the routing socket
+ * indicating a network interface has had addresses associated with it.
+ * if we ever reverse the logic and replace messages TO the routing
+ * socket indicate a request to configure interfaces, then it will
+ * be unnecessary as the routing socket will automatically generate
+ * copies of it.
+ */
+rt_newaddrmsg(cmd, ifa, error, rt)
+ int cmd, error;
+ register struct ifaddr *ifa;
+ register struct rtentry *rt;
+{
+ struct rt_addrinfo info;
+ struct sockaddr *sa;
+ int pass;
+ struct mbuf *m;
+ struct ifnet *ifp = ifa->ifa_ifp;
+
+ if (route_cb.any_count == 0)
+ return;
+ for (pass = 1; pass < 3; pass++) {
+ bzero((caddr_t)&info, sizeof(info));
+ if ((cmd == RTM_ADD && pass == 1) ||
+ (cmd == RTM_DELETE && pass == 2)) {
+ register struct ifa_msghdr *ifam;
+ int ncmd = cmd == RTM_ADD ? RTM_NEWADDR : RTM_DELADDR;
+
+ ifaaddr = sa = ifa->ifa_addr;
+ ifpaddr = ifp->if_addrlist->ifa_addr;
+ netmask = ifa->ifa_netmask;
+ brdaddr = ifa->ifa_dstaddr;
+ if ((m = rt_msg1(ncmd, &info)) == NULL)
+ continue;
+ ifam = mtod(m, struct ifa_msghdr *);
+ ifam->ifam_index = ifp->if_index;
+ ifam->ifam_metric = ifa->ifa_metric;
+ ifam->ifam_flags = ifa->ifa_flags;
+ ifam->ifam_addrs = info.rti_addrs;
+ }
+ if ((cmd == RTM_ADD && pass == 2) ||
+ (cmd == RTM_DELETE && pass == 1)) {
+ register struct rt_msghdr *rtm;
+
+ if (rt == 0)
+ continue;
+ netmask = rt_mask(rt);
+ dst = sa = rt_key(rt);
+ gate = rt->rt_gateway;
+ if ((m = rt_msg1(cmd, &info)) == NULL)
+ continue;
+ rtm = mtod(m, struct rt_msghdr *);
+ rtm->rtm_index = ifp->if_index;
+ rtm->rtm_flags |= rt->rt_flags;
+ rtm->rtm_errno = error;
+ rtm->rtm_addrs = info.rti_addrs;
+ }
+ route_proto.sp_protocol = sa ? sa->sa_family : 0;
+ raw_input(m, &route_proto, &route_src, &route_dst);
+ }
+}
+
+#include <sys/kinfo.h>
projects / unix-history / blobdiff