ndp: fix proxying behavior

diff --git a/src/ndp.c b/src/ndp.c
index a3c6916..ae87d95 100644 (file)
--- a/src/ndp.c
+++ b/src/ndp.c
@@ -125,7 +125,7 @@ int setup_ndp_interface(struct interface *iface, bool enable)
        int procfd = open(procbuf, O_WRONLY);
        bool dump_neigh = false;
 
-       if (iface->ndp_event.uloop.fd >= 0) {
+       if (iface->ndp_event.uloop.fd > 0) {
                uloop_fd_delete(&iface->ndp_event.uloop);
                close(iface->ndp_event.uloop.fd);
                iface->ndp_event.uloop.fd = -1;
@@ -136,7 +136,8 @@ int setup_ndp_interface(struct interface *iface, bool enable)
                dump_neigh = true;
        }
 
-       if (enable && (iface->ra == RELAYD_SERVER || iface->dhcpv6 == RELAYD_SERVER)) {
+       if (enable && (iface->ra == RELAYD_SERVER ||
+                       iface->dhcpv6 == RELAYD_SERVER || iface->ndp == RELAYD_RELAY)) {
                // Synthesize initial address events
                struct {
                        struct nlmsghdr nh;
@@ -257,7 +258,7 @@ static void handle_solicit(void *addr, void *data, size_t len,
        struct interface *c;
        list_for_each_entry(c, &interfaces, head)
                if (iface->ndp == RELAYD_RELAY && iface != c &&
-                               (!ns_is_dad || !c->external == false))
+                               (ns_is_dad || !c->external))
                        ping6(&req->nd_ns_target, c);
 }
 
@@ -295,7 +296,7 @@ void odhcpd_setup_route(const struct in6_addr *addr, int prefixlen,
        if (add) {
                req.nh.nlmsg_type = RTM_NEWROUTE;
                req.nh.nlmsg_flags |= (NLM_F_CREATE | NLM_F_REPLACE);
-               req.rtm.rtm_protocol = RTPROT_BOOT;
+               req.rtm.rtm_protocol = RTPROT_STATIC;
                req.rtm.rtm_scope = (gw) ? RT_SCOPE_UNIVERSE : RT_SCOPE_LINK;
                req.rtm.rtm_type = RTN_UNICAST;
        } else {
@@ -303,8 +304,8 @@ void odhcpd_setup_route(const struct in6_addr *addr, int prefixlen,
                req.rtm.rtm_scope = RT_SCOPE_NOWHERE;
        }
 
-       size_t reqlen = (gw) ? sizeof(req) : offsetof(struct req, rta_gw);
-       send(rtnl_event.uloop.fd, &req, reqlen, MSG_DONTWAIT);
+       req.nh.nlmsg_len = (gw) ? sizeof(req) : offsetof(struct req, rta_gw);
+       send(rtnl_event.uloop.fd, &req, req.nh.nlmsg_len, MSG_DONTWAIT);
 }
 
 // Use rtnetlink to modify kernel routes