X-Git-Url: http://git.archive.openwrt.org/?p=project%2Fodhcpd.git;a=blobdiff_plain;f=src%2Frouter.c;h=7a79119baff24f4ccae9f0dea3abf47d0d7ab10c;hp=372c4002adeed03de606b3e4454d533b704217b8;hb=7e778d60e28a802f4d9a4c2d68ee97a5079a8946;hpb=6d644f0991c51fffcc5312e73b42126b7c6559bf

diff --git a/src/router.c b/src/router.c
index 372c400..7a79119 100644
--- a/src/router.c
+++ b/src/router.c
@@ -186,20 +186,6 @@ static void handle_icmpv6(void *addr, void *data, size_t len,
 }
 
 
-static bool match_route(const struct odhcpd_ipaddr *n, const struct in6_addr *addr)
-{
-	if (n->prefix <= 32)
-		return ntohl(n->addr.s6_addr32[0]) >> (32 - n->prefix) ==
-				ntohl(addr->s6_addr32[0]) >> (32 - n->prefix);
-
-	if (n->addr.s6_addr32[0] != addr->s6_addr32[0])
-		return false;
-
-	return ntohl(n->addr.s6_addr32[1]) >> (64 - n->prefix) ==
-			ntohl(addr->s6_addr32[1]) >> (64 - n->prefix);
-}
-
-
 // Detect whether a default route exists, also find the source prefixes
 static bool parse_routes(struct odhcpd_ipaddr *n, ssize_t len)
 {
@@ -224,7 +210,7 @@ static bool parse_routes(struct odhcpd_ipaddr *n, ssize_t len)
 
 			for (ssize_t i = 0; i < len; ++i) {
 				if (n[i].prefix <= 64 && n[i].prefix >= p.prefix &&
-						match_route(&p, &n[i].addr)) {
+						!odhcpd_bmemcmp(&p.addr, &n[i].addr, p.prefix)) {
 					n[i].prefix = p.prefix;
 					break;
 				}
@@ -296,7 +282,7 @@ static void send_router_advert(struct uloop_timeout *event)
 
 	for (ssize_t i = 0; i < ipcnt; ++i) {
 		struct odhcpd_ipaddr *addr = &addrs[i];
-		if (addr->prefix > 64 || addr->has_class)
+		if (addr->prefix > 96 || addr->has_class)
 			continue; // Address not suitable
 
 		if (addr->preferred > MaxPreferredTime)
@@ -307,8 +293,9 @@ static void send_router_advert(struct uloop_timeout *event)
 
 		struct nd_opt_prefix_info *p = NULL;
 		for (size_t i = 0; i < cnt; ++i) {
-			if (!memcmp(&adv.prefix[i].nd_opt_pi_prefix,
-					&addr->addr, 8))
+			if (addr->prefix == adv.prefix[i].nd_opt_pi_prefix_len &&
+					!odhcpd_bmemcmp(&adv.prefix[i].nd_opt_pi_prefix,
+					&addr->addr, addr->prefix))
 				p = &adv.prefix[i];
 		}
 
@@ -326,14 +313,14 @@ static void send_router_advert(struct uloop_timeout *event)
 				maxpreferred = 1000 * addr->preferred;
 		}
 
-		memcpy(&p->nd_opt_pi_prefix, &addr->addr, 8);
+		odhcpd_bmemcpy(&p->nd_opt_pi_prefix, &addr->addr, addr->prefix);
 		p->nd_opt_pi_type = ND_OPT_PREFIX_INFORMATION;
 		p->nd_opt_pi_len = 4;
-		p->nd_opt_pi_prefix_len = 64;
+		p->nd_opt_pi_prefix_len = (addr->prefix < 64) ? 64 : addr->prefix;
 		p->nd_opt_pi_flags_reserved = 0;
 		if (!iface->ra_not_onlink)
 			p->nd_opt_pi_flags_reserved |= ND_OPT_PI_FLAG_ONLINK;
-		if (iface->managed < RELAYD_MANAGED_NO_AFLAG)
+		if (iface->managed < RELAYD_MANAGED_NO_AFLAG && addr->prefix <= 64)
 			p->nd_opt_pi_flags_reserved |= ND_OPT_PI_FLAG_AUTO;
 		p->nd_opt_pi_valid_time = htonl(addr->valid);
 		p->nd_opt_pi_preferred_time = htonl(addr->preferred);