X-Git-Url: https://tinc-vpn.org/git/browse?a=blobdiff_plain;f=src%2Fnet_socket.c;h=d470fef5d9fab40bce12e5b90ffa92eba1293358;hb=3ade33bfac11715190ed3e6cc3589d1a738ce257;hp=44d7f77159c5d586ceb8fdb62438e5f6c5593538;hpb=a22041922f160667573e9a5ae3f4195e1668906a;p=tinc

diff --git a/src/net_socket.c b/src/net_socket.c
index 44d7f771..d470fef5 100644
--- a/src/net_socket.c
+++ b/src/net_socket.c
@@ -43,6 +43,8 @@
 int addressfamily = AF_UNSPEC;
 int maxtimeout = 900;
 int seconds_till_retry = 5;
+int udp_rcvbuf = 0;
+int udp_sndbuf = 0;
 
 listen_socket_t listen_socket[MAXSOCKETS];
 int listen_sockets;
@@ -135,9 +137,9 @@ static bool bind_to_address(connection_t *c) {
 	status = getaddrinfo(node, /* service = */ NULL,
 			&ai_hints, &ai_list);
 	if(status) {
-		free(node);
 		logger(LOG_WARNING, "Error looking up %s port %s: %s",
 				node, "any", gai_strerror(status));
+		free(node);
 		return false;
 	}
 	assert(ai_list != NULL);
@@ -260,6 +262,12 @@ int setup_vpn_in_socket(const sockaddr_t *sa) {
 	option = 1;
 	setsockopt(nfd, SOL_SOCKET, SO_REUSEADDR, (void *)&option, sizeof option);
 
+	if(udp_rcvbuf && setsockopt(nfd, SOL_SOCKET, SO_RCVBUF, (void *)&udp_rcvbuf, sizeof(udp_rcvbuf)))
+		logger(LOG_WARNING, "Can't set UDP SO_RCVBUF to %i: %s", udp_rcvbuf, strerror(errno));
+
+	if(udp_sndbuf && setsockopt(nfd, SOL_SOCKET, SO_SNDBUF, (void *)&udp_sndbuf, sizeof(udp_sndbuf)))
+		logger(LOG_WARNING, "Can't set UDP SO_SNDBUF to %i: %s", udp_sndbuf, strerror(errno));
+
 #if defined(IPPROTO_IPV6) && defined(IPV6_V6ONLY)
 	if(sa->sa.sa_family == AF_INET6)
 		setsockopt(nfd, IPPROTO_IPV6, IPV6_V6ONLY, (void *)&option, sizeof option);
@@ -342,7 +350,7 @@ void finish_connecting(connection_t *c) {
 	send_id(c);
 }
 
-void do_outgoing_connection(connection_t *c) {
+bool do_outgoing_connection(connection_t *c) {
 	char *address, *port, *space;
 	int result;
 
@@ -359,7 +367,7 @@ begin:
 			retry_outgoing(c->outgoing);
 			c->outgoing = NULL;
 			connection_del(c);
-			return;
+			return false;
 		}
 
 		get_config_string(c->outgoing->cfg, &address);
@@ -426,7 +434,7 @@ begin:
 	if(result == -1) {
 		if(sockinprogress(sockerrno)) {
 			c->status.connecting = true;
-			return;
+			return true;
 		}
 
 		closesocket(c->socket);
@@ -438,29 +446,32 @@ begin:
 
 	finish_connecting(c);
 
-	return;
-}
-
-void handle_meta_read(struct bufferevent *event, void *data) {
-	logger(LOG_ERR, "handle_meta_read() called");
-	abort();
+	return true;
 }
 
-void handle_meta_write(struct bufferevent *event, void *data) {
+static void handle_meta_write(int sock, short events, void *data) {
 	ifdebug(META) logger(LOG_DEBUG, "handle_meta_write() called");
-}
 
-void handle_meta_connection_error(struct bufferevent *event, short what, void *data) {
 	connection_t *c = data;
-	logger(LOG_ERR, "handle_meta_connection_error() called: %d: %s", what, strerror(errno));
-	terminate_connection(c, c->status.active);
+
+	ssize_t outlen = send(c->socket, c->outbuf.data + c->outbuf.offset, c->outbuf.len - c->outbuf.offset, 0);
+	if(outlen <= 0) {
+		logger(LOG_ERR, "Onoes, outlen = %zd (%s)", outlen, strerror(errno));
+		terminate_connection(c, c->status.active);
+		return;
+	}
+
+	buffer_read(&c->outbuf, outlen);
+	if(!c->outbuf.len && event_initialized(&c->outevent))
+		event_del(&c->outevent);
 }
 
 void setup_outgoing_connection(outgoing_t *outgoing) {
 	connection_t *c;
 	node_t *n;
 
-	event_del(&outgoing->ev);
+	if(event_initialized(&outgoing->ev))
+		event_del(&outgoing->ev);
 
 	n = lookup_node(outgoing->name);
 
@@ -495,16 +506,11 @@ void setup_outgoing_connection(outgoing_t *outgoing) {
 
 	connection_add(c);
 
-	do_outgoing_connection(c);
-
-	event_set(&c->inevent, c->socket, EV_READ | EV_PERSIST, handle_meta_connection_data, c);
-	event_add(&c->inevent, NULL);
-	c->buffer = bufferevent_new(c->socket, handle_meta_read, handle_meta_write, handle_meta_connection_error, c);
-	if(!c->buffer) {
-		logger(LOG_ERR, "bufferevent_new() failed: %s", strerror(errno));
-		abort();
+	if (do_outgoing_connection(c)) {
+		event_set(&c->inevent, c->socket, EV_READ | EV_PERSIST, handle_meta_connection_data, c);
+		event_set(&c->outevent, c->socket, EV_WRITE | EV_PERSIST, handle_meta_write, c);
+		event_add(&c->inevent, NULL);
 	}
-	bufferevent_disable(c->buffer, EV_READ);
 }
 
 /*
@@ -541,13 +547,8 @@ void handle_new_meta_connection(int sock, short events, void *data) {
 	ifdebug(CONNECTIONS) logger(LOG_NOTICE, "Connection from %s", c->hostname);
 
 	event_set(&c->inevent, c->socket, EV_READ | EV_PERSIST, handle_meta_connection_data, c);
+	event_set(&c->outevent, c->socket, EV_WRITE | EV_PERSIST, handle_meta_write, c);
 	event_add(&c->inevent, NULL);
-	c->buffer = bufferevent_new(c->socket, NULL, handle_meta_write, handle_meta_connection_error, c);
-	if(!c->buffer) {
-		logger(LOG_ERR, "bufferevent_new() failed: %s", strerror(errno));
-		abort();
-	}
-	bufferevent_disable(c->buffer, EV_READ);
 		
 	configure_tcp(c);
 
@@ -557,7 +558,7 @@ void handle_new_meta_connection(int sock, short events, void *data) {
 	send_id(c);
 }
 
-void free_outgoing(outgoing_t *outgoing) {
+static void free_outgoing(outgoing_t *outgoing) {
 	if(outgoing->ai)
 		freeaddrinfo(outgoing->ai);