X-Git-Url: http://tinc-vpn.org/git/browse?a=blobdiff_plain;f=src%2Fbsd%2Fdevice.c;h=35038c74d16f2b0df3a109550c85b624095d8ce4;hb=636200d1a2024982fe5b3062153daa72a8253015;hp=045fc188241b03f07864453cba54f760bb758cf8;hpb=82b29e9a3b1dc6b2104ab92ed78bf431a4e55649;p=tinc

diff --git a/src/bsd/device.c b/src/bsd/device.c
index 045fc188..35038c74 100644
--- a/src/bsd/device.c
+++ b/src/bsd/device.c
@@ -1,7 +1,7 @@
 /*
     device.c -- Interaction BSD tun/tap device
-    Copyright (C) 2001-2004 Ivo Timmermans <ivo@tinc-vpn.org>,
-                  2001-2004 Guus Sliepen <guus@tinc-vpn.org>
+    Copyright (C) 2001-2005 Ivo Timmermans,
+                  2001-2007 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
@@ -49,10 +49,6 @@ static device_type_t device_type = DEVICE_TYPE_TUN;
 #endif
 
 bool setup_device(void) {
-#ifdef TUNSIFHEAD
-	const int zero = 0;
-	const int one = 1;
-#endif
 	char *type;
 
 	cp();
@@ -91,20 +87,40 @@ bool setup_device(void) {
 			device_type = DEVICE_TYPE_TUN;
 		case DEVICE_TYPE_TUN:
 #ifdef TUNSIFHEAD
+		{	
+			const int zero = 0;
 			if(ioctl(device_fd, TUNSIFHEAD, &zero, sizeof zero) == -1) {
 				logger(LOG_ERR, _("System call `%s' failed: %s"), "ioctl", strerror(errno));
 				return false;
 			}
+		}
+#endif
+#if defined(TUNSIFMODE) && defined(IFF_BROADCAST) && defined(IFF_MULTICAST)
+		{
+			const int mode = IFF_BROADCAST | IFF_MULTICAST;
+			ioctl(device_fd, TUNSIFMODE, &mode, sizeof mode);
+		}
 #endif
+
 			device_info = _("Generic BSD tun device");
 			break;
 		case DEVICE_TYPE_TUNIFHEAD:
 #ifdef TUNSIFHEAD
+		{
+			const int one = 1;
 			if(ioctl(device_fd, TUNSIFHEAD, &one, sizeof one) == -1) {
 				logger(LOG_ERR, _("System call `%s' failed: %s"), "ioctl", strerror(errno));
 				return false;
 			}
+		}
 #endif
+#if defined(TUNSIFMODE) && defined(IFF_BROADCAST) && defined(IFF_MULTICAST)
+		{
+				const int mode = IFF_BROADCAST | IFF_MULTICAST;
+				ioctl(device_fd, TUNSIFMODE, &mode, sizeof mode);
+		}
+#endif
+
 			device_info = _("Generic BSD tun device");
 			break;
 		case DEVICE_TYPE_TAP:
@@ -126,13 +142,13 @@ void close_device(void) {
 }
 
 bool read_packet(vpn_packet_t *packet) {
-	int lenin;
+	int inlen;
 
 	cp();
 
 	switch(device_type) {
 		case DEVICE_TYPE_TUN:
-			if((lenin = read(device_fd, packet->data + 14, MTU - 14)) <= 0) {
+			if((inlen = read(device_fd, packet->data + 14, MTU - 14)) <= 0) {
 				logger(LOG_ERR, _("Error while reading from %s %s: %s"), device_info,
 					   device, strerror(errno));
 				return false;
@@ -154,14 +170,14 @@ bool read_packet(vpn_packet_t *packet) {
 					return false;
 			}
 
-			packet->len = lenin + 14;
+			packet->len = inlen + 14;
 			break;
 
 		case DEVICE_TYPE_TUNIFHEAD: {
 			u_int32_t type;
-			struct iovec vector[2] = {{&type, sizeof(type)}, {packet->data + 14, MTU - 14}};
+			struct iovec vector[2] = {{&type, sizeof type}, {packet->data + 14, MTU - 14}};
 
-			if((lenin = readv(device_fd, vector, 2)) <= 0) {
+			if((inlen = readv(device_fd, vector, 2)) <= 0) {
 				logger(LOG_ERR, _("Error while reading from %s %s: %s"), device_info,
 					   device, strerror(errno));
 				return false;
@@ -185,18 +201,18 @@ bool read_packet(vpn_packet_t *packet) {
 					return false;
 			}
 
-			packet->len = lenin + 10;
+			packet->len = inlen + 10;
 			break;
 		}
 
 		case DEVICE_TYPE_TAP:
-			if((lenin = read(device_fd, packet->data, MTU)) <= 0) {
+			if((inlen = read(device_fd, packet->data, MTU)) <= 0) {
 				logger(LOG_ERR, _("Error while reading from %s %s: %s"), device_info,
 					   device, strerror(errno));
 				return false;
 			}
 
-			packet->len = lenin;
+			packet->len = inlen;
 			break;
 
 		default:
@@ -211,8 +227,7 @@ bool read_packet(vpn_packet_t *packet) {
 	return true;
 }
 
-bool write_packet(vpn_packet_t *packet)
-{
+bool write_packet(vpn_packet_t *packet) {
 	cp();
 
 	ifdebug(TRAFFIC) logger(LOG_DEBUG, _("Writing packet of %d bytes to %s"),
@@ -229,7 +244,7 @@ bool write_packet(vpn_packet_t *packet)
 
 		case DEVICE_TYPE_TUNIFHEAD: {
 			u_int32_t type;
-			struct iovec vector[2] = {{&type, sizeof(type)}, {packet->data + 14, MTU - 14}};
+			struct iovec vector[2] = {{&type, sizeof type}, {packet->data + 14, packet->len - 14}};
 			int af;
 			
 			af = (packet->data[12] << 8) + packet->data[13];
@@ -273,8 +288,7 @@ bool write_packet(vpn_packet_t *packet)
 	return true;
 }
 
-void dump_device_stats(void)
-{
+void dump_device_stats(void) {
 	cp();
 
 	logger(LOG_DEBUG, _("Statistics for %s %s:"), device_info, device);