5 files changed, 35 insertions, 17 deletions

diff --git a/nhrp/admin.c b/nhrp/admin.c
index 68a3e9e..d89fa87 100644
--- a/nhrp/admin.c
+++ b/nhrp/admin.c
@@ -54,10 +54,16 @@ static int parse_word(const char **bufptr, size_t len, char *word)
 	return TRUE;
 }
 
+static void admin_raw_write(void *ctx, const void *buf, size_t len)
+{
+	struct admin_remote *rmt = (struct admin_remote *) ctx;
+
+	if (write(rmt->io.fd, buf, len) != len) {
+	}
+}
 
 static void admin_write(void *ctx, const char *format, ...)
 {
-	struct admin_remote *rmt = (struct admin_remote *) ctx;
 	char msg[1024];
 	va_list ap;
 	size_t len;
@@ -66,8 +72,7 @@ static void admin_write(void *ctx, const char *format, ...)
 	len = vsnprintf(msg, sizeof(msg), format, ap);
 	va_end(ap);
 
-	if (write(rmt->io.fd, msg, len) != len) {
-	}
+	admin_raw_write(ctx, msg, len);
 }
 
 static void admin_free_remote(struct admin_remote *rm)
@@ -148,8 +153,8 @@ static int admin_show_peer(void *ctx, struct nhrp_peer *peer)
 				      rel / 60, rel % 60);
 		}
 	}
-
-	admin_write(ctx, "%s\n", buf);
+	i += snprintf(&buf[i], len - i, "\n");
+	admin_raw_write(ctx, buf, i);
 	return 0;
 }
 
@@ -223,9 +228,9 @@ static int admin_parse_selector(void *ctx, const char *cmd,
 		} else if (strcmp(keyword, "local-nbma") == 0) {
 			if (sel->interface != NULL)
 				goto err_conflict;
-			sel->interface = nhrp_interface_get_by_nbma(&address);
+			sel->local_nbma_address = address;
 			if (sel->interface == NULL)
-				goto err_noiface;
+				sel->interface = nhrp_interface_get_by_nbma(&address);
 		} else {
 			admin_write(ctx,
 				    "Status: failed\n"
@@ -406,7 +411,8 @@ static int admin_show_interface(void *ctx, struct nhrp_interface *iface)
 			nhrp_address_format(&iface->nat_cie.nbma_address, sizeof(tmp), tmp));
 	}
 done:
-	admin_write(ctx, "%s\n", buf);
+	i += snprintf(&buf[i], len - i, "\n");
+	admin_raw_write(ctx, buf, i);
 	return 0;
 }
 
@@ -420,7 +426,7 @@ static void admin_redirect_purge(void *ctx, const char *cmd)
 {
 	char keyword[64];
 	struct nhrp_address addr;
-	uint8_t prefix;
+	uint8_t prefix = 0;
 	int count;
 
 	nhrp_address_set_type(&addr, PF_UNSPEC);
diff --git a/nhrp/nhrp_interface.c b/nhrp/nhrp_interface.c
index 32c2383..05f0e80 100644
--- a/nhrp/nhrp_interface.c
+++ b/nhrp/nhrp_interface.c
@@ -123,20 +123,23 @@ struct nhrp_interface *nhrp_interface_get_by_index(unsigned int index, int creat
 
 struct nhrp_interface *nhrp_interface_get_by_nbma(struct nhrp_address *addr)
 {
+	struct nhrp_interface *match = NULL;
 	struct nhrp_interface *iface;
 
 	list_for_each_entry(iface, &name_list, name_list_entry) {
 		if (!(iface->flags & NHRP_INTERFACE_FLAG_CONFIGURED))
 			continue;
 
-		if (nhrp_address_cmp(addr, &iface->nbma_address) == 0)
-			return iface;
-
-		if (iface->nbma_address.type == PF_UNSPEC && !iface->link_index)
-			return iface;
+		if ((nhrp_address_cmp(addr, &iface->nbma_address) == 0) ||
+		    (iface->nbma_address.type == PF_UNSPEC && !iface->link_index)) {
+			/* ambiguous match - return null */
+			if (match != NULL)
+				return NULL;
+			match = iface;
+		}
 	}
 
-	return NULL;
+	return match;
 }
 
 struct nhrp_interface *nhrp_interface_get_by_protocol(struct nhrp_address *addr)
diff --git a/nhrp/nhrp_peer.c b/nhrp/nhrp_peer.c
index c53d4c4..7bd1a79 100644
--- a/nhrp/nhrp_peer.c
+++ b/nhrp/nhrp_peer.c
@@ -1833,6 +1833,12 @@ int nhrp_peer_match(struct nhrp_peer *p, struct nhrp_peer_selector *sel)
 	    p->parent != sel->parent)
 		return FALSE;
 
+	if (sel->local_nbma_address.type != PF_UNSPEC) {
+		if (nhrp_address_cmp(&p->my_nbma_address,
+				     &sel->local_nbma_address) != 0)
+			return FALSE;
+	}
+
 	if (sel->protocol_address.type != PF_UNSPEC) {
 		if (sel->prefix_length == 0)
 			sel->prefix_length = sel->protocol_address.addr_len * 8;
diff --git a/nhrp/nhrp_peer.h b/nhrp/nhrp_peer.h
index dea8d66..1df5fa9 100644
--- a/nhrp/nhrp_peer.h
+++ b/nhrp/nhrp_peer.h
@@ -136,6 +136,8 @@ struct nhrp_peer_selector {
 	int prefix_length;
 	struct nhrp_address protocol_address;
 	struct nhrp_address next_hop_address;
+
+	struct nhrp_address local_nbma_address;
 };
 
 const char * const nhrp_peer_type[NHRP_PEER_TYPE_MAX];
diff --git a/nhrp/sysdep_netlink.c b/nhrp/sysdep_netlink.c
index d058a98..0dce865 100644
--- a/nhrp/sysdep_netlink.c
+++ b/nhrp/sysdep_netlink.c
@@ -461,8 +461,9 @@ static void netlink_link_new(struct nlmsghdr *msg)
 	if (rta[IFLA_MTU])
 		iface->mtu = *((unsigned*)RTA_DATA(rta[IFLA_MTU]));
 
-	if (iface->index == 0 || (ifi->ifi_flags & ifi->ifi_change & IFF_UP)) {
-		nhrp_info("Interface %s: new or configured up, mtu=%d",
+	if (((ifi->ifi_change & IFF_UP) || (iface->index == 0)) &&
+	    (ifi->ifi_flags & IFF_UP)) {
+		nhrp_info("Interface %s: configured UP, mtu=%d",
 			  ifname, iface->mtu);
 		nhrp_interface_run_script(iface, "interface-up");
 	} else {