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--- device-bsd44.c.orig 2018-02-18 22:45:02 UTC
+++ device-bsd44.c
@@ -126,7 +126,31 @@ ret:
return -1;
}
-int setup_allrouters_membership(int sock, struct Interface *iface) { return 0; }
+int setup_allrouters_membership(int sock, struct Interface *iface)
+{
+ struct ipv6_mreq mreq;
+
+ memset(&mreq, 0, sizeof(mreq));
+ mreq.ipv6mr_interface = iface->props.if_index;
+
+ /* all-routers multicast address */
+ if (inet_pton(AF_INET6, "ff02::2",
+ &mreq.ipv6mr_multiaddr.s6_addr) != 1) {
+ flog(LOG_ERR, "inet_pton failed");
+ return (-1);
+ }
+
+ /* if we leave unconditionally the join cannot fail */
+ setsockopt(sock, IPPROTO_IPV6, IPV6_LEAVE_GROUP, &mreq, sizeof(mreq));
+
+ if (setsockopt(sock, IPPROTO_IPV6, IPV6_JOIN_GROUP,
+ &mreq, sizeof(mreq)) < 0) {
+ flog(LOG_ERR, "can't join ipv6-allrouters on %s", iface->props.name);
+ return (-1);
+ }
+
+ return 0;
+}
int set_interface_linkmtu(const char *iface, uint32_t mtu)
{
@@ -161,5 +185,5 @@ int check_ip6_forwarding(void)
int check_ip6_iface_forwarding(const char *iface)
{
dlog(LOG_DEBUG, 4, "checking ipv6 forwarding of interface not supported");
- return -1;
+ return 1;
}
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