X-Git-Url: https://git.decadent.org.uk/gitweb/?p=odhcp6c.git;a=blobdiff_plain;f=src%2Fdhcpv6.c;h=6e5e8ba88ecec32c0fd2edaddb500c0dfe7495c6;hp=c87d289e159687b03aa3fc87f1c9b98b3651c06d;hb=c883e53b45ea050fd0038bb15bb02f1e97d3a765;hpb=aa894a5a8f31056582cd990982df1322a36a0f2b

diff --git a/src/dhcpv6.c b/src/dhcpv6.c
index c87d289..6e5e8ba 100644
--- a/src/dhcpv6.c
+++ b/src/dhcpv6.c
@@ -175,6 +175,9 @@ int init_dhcpv6(const char *ifname, unsigned int options, int sol_timeout)
 			htons(DHCPV6_OPT_INF_MAX_RT),
 #ifdef EXT_PREFIX_CLASS
 			htons(DHCPV6_OPT_PREFIX_CLASS),
+#endif
+#ifdef EXT_CER_ID
+			htons(DHCPV6_OPT_CER_ID),
 #endif
 		};
 		odhcp6c_add_state(STATE_ORO, oro, sizeof(oro));
@@ -185,8 +188,6 @@ int init_dhcpv6(const char *ifname, unsigned int options, int sol_timeout)
 	setsockopt(sock, IPPROTO_IPV6, IPV6_V6ONLY, &val, sizeof(val));
 	setsockopt(sock, SOL_SOCKET, SO_REUSEADDR, &val, sizeof(val));
 	setsockopt(sock, IPPROTO_IPV6, IPV6_RECVPKTINFO, &val, sizeof(val));
-	val = 0;
-	setsockopt(sock, IPPROTO_IPV6, IPV6_MULTICAST_LOOP, &val, sizeof(val));
 	setsockopt(sock, SOL_SOCKET, SO_BINDTODEVICE, ifname, strlen(ifname));
 
 	struct sockaddr_in6 client_addr = { .sin6_family = AF_INET6,
@@ -912,6 +913,7 @@ static int dhcpv6_handle_reply(enum dhcpv6_msg orig, _unused const int rc,
 		odhcp6c_clear_state(STATE_SIP_IP);
 		odhcp6c_clear_state(STATE_SIP_FQDN);
 		odhcp6c_clear_state(STATE_AFTR_NAME);
+		odhcp6c_clear_state(STATE_CER);
 	}
 
 	// Parse and find all matching IAs
@@ -1010,7 +1012,15 @@ static int dhcpv6_handle_reply(enum dhcpv6_msg orig, _unused const int rc,
 			if (inf_max_rt >= DHCPV6_INF_MAX_RT_MIN &&
 					inf_max_rt <= DHCPV6_INF_MAX_RT_MAX)
 				dhcpv6_retx[DHCPV6_MSG_INFO_REQ].max_timeo = inf_max_rt;
-		}else if (otype != DHCPV6_OPT_CLIENTID &&
+#ifdef EXT_CER_ID
+		} else if (otype == DHCPV6_OPT_CER_ID && olen == -4 +
+				sizeof(struct dhcpv6_cer_id)) {
+			struct dhcpv6_cer_id *cer_id = (void*)&odata[-4];
+			struct in6_addr any = IN6ADDR_ANY_INIT;
+			if (memcmp(&cer_id->addr, &any, sizeof(any)))
+				odhcp6c_add_state(STATE_CER, &cer_id->addr, sizeof(any));
+#endif
+		} else if (otype != DHCPV6_OPT_CLIENTID &&
 				otype != DHCPV6_OPT_SERVERID) {
 			odhcp6c_add_state(STATE_CUSTOM_OPTS,
 					&odata[-4], olen + 4);