--- /dev/null
+/* $Id$ */
+
+/***
+ This file is part of avahi.
+
+ avahi is free software; you can redistribute it and/or modify it
+ under the terms of the GNU Lesser General Public License as
+ published by the Free Software Foundation; either version 2.1 of the
+ License, or (at your option) any later version.
+
+ avahi 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 Lesser General
+ Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with avahi; if not, write to the Free Software
+ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
+ USA.
+***/
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <avahi-common/malloc.h>
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <unistd.h>
+#include <errno.h>
+#include <err.h>
+#include <sysexits.h>
+
+#include <sys/types.h>
+#include <sys/socket.h>
+
+#include <sys/sysctl.h>
+#include <net/route.h>
+#include <net/if.h>
+#include <netinet/in.h>
+#include <net/if_dl.h>
+
+#include <arpa/inet.h>
+
+
+#include "log.h"
+#include "iface.h"
+#include "iface-pfroute.h"
+#include "util.h"
+
+static void rtm_info(struct rt_msghdr *rtm, AvahiInterfaceMonitor *m)
+{
+ AvahiHwInterface *hw;
+ struct if_msghdr *ifm = (struct if_msghdr *)rtm;
+ struct sockaddr_dl *sdl = (struct sockaddr_dl *)(ifm + 1);
+
+ if (sdl->sdl_family != AF_LINK)
+ return;
+
+ if (ifm->ifm_addrs == 0 && ifm->ifm_index > 0) {
+ if (!(hw = avahi_interface_monitor_get_hw_interface(m, (AvahiIfIndex) ifm->ifm_index)))
+ return;
+ avahi_hw_interface_free(hw, 0);
+ return;
+ }
+
+ if (!(hw = avahi_interface_monitor_get_hw_interface(m, ifm->ifm_index)))
+ if (!(hw = avahi_hw_interface_new(m, (AvahiIfIndex) ifm->ifm_index)))
+ return; /* OOM */
+
+ hw->flags_ok =
+ (ifm->ifm_flags & IFF_UP) &&
+ (!m->server->config.use_iff_running || (ifm->ifm_flags & IFF_RUNNING)) &&
+ !(ifm->ifm_flags & IFF_LOOPBACK) &&
+ (ifm->ifm_flags & IFF_MULTICAST) &&
+ !(ifm->ifm_flags & IFF_POINTOPOINT);
+
+ avahi_free(hw->name);
+ hw->name = avahi_strndup(sdl->sdl_data, sdl->sdl_nlen);
+
+ hw->mtu = ifm->ifm_data.ifi_mtu;
+
+ hw->mac_address_size = sdl->sdl_alen;
+ if (hw->mac_address_size > AVAHI_MAX_MAC_ADDRESS)
+ hw->mac_address_size = AVAHI_MAX_MAC_ADDRESS;
+
+ memcpy(hw->mac_address, sdl->sdl_data + sdl->sdl_nlen, hw->mac_address_size);
+
+ printf("======\n name: %s\n index:%d\n mtu:%d\n mac:%s\n flags_ok:%d\n======",
+ hw->name, hw->index,
+ hw->mtu,
+ avahi_format_mac_address(hw->mac_address, hw->mac_address_size),
+ hw->flags_ok);
+
+ avahi_hw_interface_check_relevant(hw);
+ avahi_hw_interface_update_rrs(hw, 0);
+}
+
+#define ROUNDUP(a) \
+ ((a) > 0 ? (1 + (((a) - 1) | (sizeof(long) - 1))) : sizeof(long))
+#define ADVANCE(x, n) (x += ROUNDUP((n)->sa_len))
+
+static void rtm_addr(struct rt_msghdr *rtm, AvahiInterfaceMonitor *m)
+{
+ AvahiInterface *iface;
+ AvahiAddress raddr;
+ int raddr_valid = 0;
+ struct ifa_msghdr *ifam = (struct ifa_msghdr *) rtm;
+ char *cp = (char *)(ifam + 1);
+ int addrs = ifam->ifam_addrs;
+ int i;
+
+ if(addrs == 0)
+ return;
+
+ for(i = 1; i; i <<=1)
+ {
+ struct sockaddr *sa;
+ sa = (struct sockaddr *)cp;
+
+ /* interface addr sockaddr present */
+ if (i & addrs && i & RTA_BRD)
+ {
+ if(sa->sa_family == AF_INET)
+ {
+ struct in_addr in = ((struct sockaddr_in *)sa)->sin_addr;
+ printf("\n%s\n",
+ inet_ntoa(in));
+ }
+ else
+ if(sa->sa_family == AF_INET6)
+ {
+ /* struct sockaddr_in6 sin6; */
+
+ }
+#ifdef SA_SIZE
+ cp += SA_SIZE(sa);
+#else
+ ADVANCE(cp, sa);
+#endif
+
+ }
+ }
+}
+
+static void parse_rtmsg(struct rt_msghdr *rtm, int msglen, AvahiInterfaceMonitor *m)
+{
+ assert(m);
+ assert(rtm);
+
+ if (rtm->rtm_version != RTM_VERSION) {
+ avahi_log_warn("routing message version %d not understood\n",
+ rtm->rtm_version);
+ return;
+ }
+
+ switch (rtm->rtm_type) {
+ case RTM_IFINFO:
+ rtm_info(rtm,m);
+ break;
+ case RTM_NEWADDR:
+ case RTM_DELADDR:
+ rtm_addr(rtm,m);
+ break;
+
+ default:
+ break;
+ }
+}
+
+
+static int wild_dump_interfaces(AvahiInterfaceMonitor *m)
+{
+ size_t needed;
+ int mib[6];
+ char *buf, *lim, *next, count = 0;
+ struct rt_msghdr *rtm;
+
+ retry2:
+ mib[0] = CTL_NET;
+ mib[1] = PF_ROUTE;
+ mib[2] = 0; /* protocol */
+ mib[3] = 0; /* wildcard address family */
+ mib[4] = NET_RT_IFLIST;
+ mib[5] = 0; /* no flags */
+ if (sysctl(mib, 6, NULL, &needed, NULL, 0) < 0)
+ err(EX_OSERR, "route-sysctl-estimate");
+ if ((buf = malloc(needed)) == NULL)
+ errx(EX_OSERR, "malloc failed");
+ if (sysctl(mib, 6, buf, &needed, NULL, 0) < 0) {
+ if (errno == ENOMEM && count++ < 10) {
+ warnx("Routing table grew, retrying");
+ sleep(1);
+ free(buf);
+ goto retry2;
+ }
+ err(EX_OSERR, "actual retrieval of interface table");
+ }
+ lim = buf + needed;
+ for (next = buf; next < lim; next += rtm->rtm_msglen) {
+ rtm = (struct rt_msghdr *)next;
+ parse_rtmsg(rtm, rtm->rtm_msglen, m);
+ }
+ return 0;
+}
+
+static void socket_event(AvahiWatch *w, int fd, AvahiWatchEvent event,void *userdata) {
+ AvahiInterfaceMonitor *m = (AvahiInterfaceMonitor *)userdata;
+ AvahiPfRoute *nl = m->osdep.pfroute;
+ ssize_t bytes;
+ char msg[2048];
+
+ assert(m);
+ assert(w);
+ assert(nl);
+ assert(fd == nl->fd);
+
+ do {
+ time_t now = time(NULL);
+ if((bytes = recv(nl->fd, msg, 2048, MSG_DONTWAIT)) < 0) {
+ if (errno == EAGAIN || errno == EINTR)
+ return;
+ avahi_log_error(__FILE__": recv() failed: %s", strerror(errno));
+ return;
+ }
+
+ (void) printf("\ngot message of size %d on %s", bytes, ctime(&now));
+ printf("parse_rtmsg\n");
+ parse_rtmsg((struct rt_msghdr *)msg, bytes ,m);
+ }
+ while (bytes > 0);
+}
+
+int avahi_interface_monitor_init_osdep(AvahiInterfaceMonitor *m) {
+ int fd = -1;
+ m->osdep.pfroute = NULL;
+
+ assert(m);
+
+ if ((fd = socket(PF_ROUTE, SOCK_RAW, AF_UNSPEC)) < 0) {
+ avahi_log_error(__FILE__": socket(PF_ROUTE): %s", strerror(errno));
+ goto fail;
+ }
+
+ if (!(m->osdep.pfroute = avahi_new(AvahiPfRoute , 1))) {
+ avahi_log_error(__FILE__": avahi_new() failed.");
+ goto fail;
+ }
+ m->osdep.pfroute->fd = fd;
+
+ if (!(m->osdep.pfroute->watch = m->server->poll_api->watch_new(m->server->poll_api,
+ m->osdep.pfroute->fd,
+ AVAHI_WATCH_IN,
+ socket_event,
+ m))) {
+ avahi_log_error(__FILE__": Failed to create watch.");
+ goto fail;
+ }
+
+ printf("avahi_interface_monitor_init_osdep\n");
+ return 0;
+
+fail:
+
+ if (m->osdep.pfroute) {
+ if (m->osdep.pfroute->watch)
+ m->osdep.pfroute->poll_api->watch_free(m->osdep.pfroute->watch);
+
+ if (fd >= 0)
+ close(fd);
+
+ m->osdep.pfroute = NULL;
+ }
+
+ return -1;
+}
+
+void avahi_interface_monitor_free_osdep(AvahiInterfaceMonitor *m) {
+ assert(m);
+
+ if (m->osdep.pfroute) {
+ if (m->osdep.pfroute->watch)
+ m->osdep.pfroute->poll_api->watch_free(m->osdep.pfroute->watch);
+
+ if (m->osdep.pfroute->fd >= 0)
+ close(m->osdep.pfroute->fd);
+
+ m->osdep.pfroute = NULL;
+ }
+}
+
+void avahi_interface_monitor_sync(AvahiInterfaceMonitor *m) {
+ assert(m);
+
+ wild_dump_interfaces(m);
+
+}
+
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