X-Git-Url: https://www.tinc-vpn.org/git/browse?p=tinc;a=blobdiff_plain;f=src%2Fmulticast_device.c;h=ea43e2c04a6efbaf4abb555ea97b098ce5fd9fe6;hp=392fd3713e03fd33232404fe81e186ae43f60044;hb=8fce1eacd7fd7496a740be3ffc236fde37c681d7;hpb=c373de2e9812700c0568640727ad917b6fc7d758

diff --git a/src/multicast_device.c b/src/multicast_device.c
index 392fd371..ea43e2c0 100644
--- a/src/multicast_device.c
+++ b/src/multicast_device.c
@@ -1,7 +1,7 @@
 /*
     device.c -- multicast socket
     Copyright (C) 2002-2005 Ivo Timmermans,
-                  2002-2012 Guus Sliepen <guus@tinc-vpn.org>
+                  2002-2014 Guus Sliepen <guus@tinc-vpn.org>
 
     This program is free software; you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by
@@ -35,7 +35,7 @@ static uint64_t device_total_in = 0;
 static uint64_t device_total_out = 0;
 
 static struct addrinfo *ai = NULL;
-static mac_t ignore_src = {0};
+static mac_t ignore_src = {{0}};
 
 static bool setup_device(void) {
 	char *host;
@@ -56,6 +56,7 @@ static bool setup_device(void) {
 	space = strchr(host, ' ');
 	if(!space) {
 		logger(LOG_ERR, "Port number required for %s", device_info);
+		free(host);
 		return false;
 	}
 
@@ -75,6 +76,7 @@ static bool setup_device(void) {
 	device_fd = socket(ai->ai_family, SOCK_DGRAM, IPPROTO_UDP);
 	if(device_fd < 0) {
 		logger(LOG_ERR, "Creating socket failed: %s", sockstrerror(sockerrno));
+		free(host);
 		return false;
 	}
 
@@ -88,46 +90,63 @@ static bool setup_device(void) {
 	if(bind(device_fd, ai->ai_addr, ai->ai_addrlen)) {
 		closesocket(device_fd);
 		logger(LOG_ERR, "Can't bind to %s %s: %s", host, port, sockstrerror(sockerrno));
+		free(host);
 		return false;
 	}
 
 	switch(ai->ai_family) {
+#ifdef IP_ADD_MEMBERSHIP
 		case AF_INET: {
 			struct ip_mreq mreq;
 			struct sockaddr_in in;
 			memcpy(&in, ai->ai_addr, sizeof in);
 			mreq.imr_multiaddr.s_addr = in.sin_addr.s_addr;
 			mreq.imr_interface.s_addr = htonl(INADDR_ANY);
-			if(setsockopt(device_fd, IPPROTO_IP, IP_ADD_MEMBERSHIP, &mreq, sizeof mreq)) {
+			if(setsockopt(device_fd, IPPROTO_IP, IP_ADD_MEMBERSHIP, (void *)&mreq, sizeof mreq)) {
 				logger(LOG_ERR, "Cannot join multicast group %s %s: %s", host, port, sockstrerror(sockerrno));
 				closesocket(device_fd);
+				free(host);
 				return false;
 			}
-			setsockopt(device_fd, IPPROTO_IP, IP_MULTICAST_LOOP, &one, sizeof one);
-			setsockopt(device_fd, IPPROTO_IP, IP_MULTICAST_TTL, &ttl, sizeof ttl);
+#ifdef IP_MULTICAST_LOOP
+			setsockopt(device_fd, IPPROTO_IP, IP_MULTICAST_LOOP, (const void *)&one, sizeof one);
+#endif
+#ifdef IP_MULTICAST_TTL
+			setsockopt(device_fd, IPPROTO_IP, IP_MULTICAST_TTL, (void *)&ttl, sizeof ttl);
+#endif
 		} break;
+#endif
 
+#ifdef IPV6_JOIN_GROUP
 		case AF_INET6: {
 			struct ipv6_mreq mreq;
 			struct sockaddr_in6 in6;
 			memcpy(&in6, ai->ai_addr, sizeof in6);
 			memcpy(&mreq.ipv6mr_multiaddr, &in6.sin6_addr, sizeof mreq.ipv6mr_multiaddr);
-			mreq.ipv6mr_interface = 0;
-			if(setsockopt(device_fd, IPPROTO_IPV6, IPV6_JOIN_GROUP, &mreq, sizeof mreq)) {
+			mreq.ipv6mr_interface = in6.sin6_scope_id;
+			if(setsockopt(device_fd, IPPROTO_IPV6, IPV6_JOIN_GROUP, (void *)&mreq, sizeof mreq)) {
 				logger(LOG_ERR, "Cannot join multicast group %s %s: %s", host, port, sockstrerror(sockerrno));
 				closesocket(device_fd);
+				free(host);
 				return false;
 			}
-			setsockopt(device_fd, IPPROTO_IPV6, IPV6_MULTICAST_LOOP, &one, sizeof one);
-			setsockopt(device_fd, IPPROTO_IPV6, IPV6_MULTICAST_HOPS, &ttl, sizeof ttl);
+#ifdef IPV6_MULTICAST_LOOP
+			setsockopt(device_fd, IPPROTO_IPV6, IPV6_MULTICAST_LOOP, (const void *)&one, sizeof one);
+#endif
+#ifdef IPV6_MULTICAST_HOPS
+			setsockopt(device_fd, IPPROTO_IPV6, IPV6_MULTICAST_HOPS, (void *)&ttl, sizeof ttl);
+#endif
 		} break;
+#endif
 	
 		default:
-			logger(LOG_ERR, "Multicast for address family %hx unsupported", ai->ai_family);
+			logger(LOG_ERR, "Multicast for address family %x unsupported", ai->ai_family);
 			closesocket(device_fd);
+			free(host);
 			return false;
 	}
 
+	free(host);
 	logger(LOG_INFO, "%s is a %s", device, device_info);
 
 	return true;
@@ -146,7 +165,7 @@ static void close_device(void) {
 static bool read_packet(vpn_packet_t *packet) {
 	int lenin;
 
-	if((lenin = recv(device_fd, packet->data, MTU, 0)) <= 0) {
+	if((lenin = recv(device_fd, (void *)packet->data, MTU, 0)) <= 0) {
 		logger(LOG_ERR, "Error while reading from %s %s: %s", device_info,
 			   device, strerror(errno));
 		return false;
@@ -172,7 +191,7 @@ static bool write_packet(vpn_packet_t *packet) {
 	ifdebug(TRAFFIC) logger(LOG_DEBUG, "Writing packet of %d bytes to %s",
 			   packet->len, device_info);
 
-	if(sendto(device_fd, packet->data, packet->len, 0, ai->ai_addr, ai->ai_addrlen) < 0) {
+	if(sendto(device_fd, (void *)packet->data, packet->len, 0, ai->ai_addr, ai->ai_addrlen) < 0) {
 		logger(LOG_ERR, "Can't write to %s %s: %s", device_info, device,
 			   strerror(errno));
 		return false;