X-Git-Url: https://tinc-vpn.org/git/browse?p=tinc;a=blobdiff_plain;f=src%2Fraw_socket_device.c;h=eb38be267bc066367fdd90479f3e857f59406c78;hp=e2692ecc1f2ec72ab035d77227674ccd847a2718;hb=c2dc3784f127ef6db6e9960a4abecc1aab6f4e31;hpb=708314df2f61675d0f54e541c9fff62ac1f433b5

diff --git a/src/raw_socket_device.c b/src/raw_socket_device.c
index e2692ecc..eb38be26 100644
--- a/src/raw_socket_device.c
+++ b/src/raw_socket_device.c
@@ -20,7 +20,9 @@
 
 #include "system.h"
 
+#ifdef HAVE_NETPACKET_PACKET_H
 #include <netpacket/packet.h>
+#endif
 
 #include "conf.h"
 #include "device.h"
@@ -30,11 +32,9 @@
 #include "route.h"
 #include "xalloc.h"
 
+#if defined(PF_PACKET) && defined(ETH_P_ALL) && defined(AF_PACKET) && defined(SIOCGIFINDEX)
 static char *device_info;
 
-static uint64_t device_total_in = 0;
-static uint64_t device_total_out = 0;
-
 static bool setup_device(void) {
 	struct ifreq ifr;
 	struct sockaddr_ll sa;
@@ -48,90 +48,96 @@ static bool setup_device(void) {
 	device_info = "raw socket";
 
 	if((device_fd = socket(PF_PACKET, SOCK_RAW, htons(ETH_P_ALL))) < 0) {
-		logger(LOG_ERR, "Could not open %s: %s", device_info,
+		logger(DEBUG_ALWAYS, LOG_ERR, "Could not open %s: %s", device_info,
 			   strerror(errno));
 		return false;
 	}
 
+	memset(&ifr, 0, sizeof ifr);
+
 #ifdef FD_CLOEXEC
 	fcntl(device_fd, F_SETFD, FD_CLOEXEC);
 #endif
 
-	memset(&ifr, 0, sizeof(ifr));
 	strncpy(ifr.ifr_ifrn.ifrn_name, iface, IFNAMSIZ);
 	if(ioctl(device_fd, SIOCGIFINDEX, &ifr)) {
 		close(device_fd);
-		logger(LOG_ERR, "Can't find interface %s: %s", iface,
+		logger(DEBUG_ALWAYS, LOG_ERR, "Can't find interface %s: %s", iface,
 			   strerror(errno));
 		return false;
 	}
 
-	memset(&sa, '0', sizeof(sa));
+	memset(&sa, '0', sizeof sa);
 	sa.sll_family = AF_PACKET;
 	sa.sll_protocol = htons(ETH_P_ALL);
 	sa.sll_ifindex = ifr.ifr_ifindex;
 
-	if(bind(device_fd, (struct sockaddr *) &sa, (socklen_t) sizeof(sa))) {
-		logger(LOG_ERR, "Could not bind %s to %s: %s", device, iface, strerror(errno));
+	if(bind(device_fd, (struct sockaddr *) &sa, (socklen_t) sizeof sa)) {
+		logger(DEBUG_ALWAYS, LOG_ERR, "Could not bind %s to %s: %s", device, iface, strerror(errno));
 		return false;
 	}
 
-	logger(LOG_INFO, "%s is a %s", device, device_info);
+	logger(DEBUG_ALWAYS, LOG_INFO, "%s is a %s", device, device_info);
 
 	return true;
 }
 
 static void close_device(void) {
-	close(device_fd);
+	close(device_fd); device_fd = -1;
 
-	free(device);
-	free(iface);
+	free(device); device = NULL;
+	free(iface); iface = NULL;
+	device_info = NULL;
 }
 
 static bool read_packet(vpn_packet_t *packet) {
-	int lenin;
+	int inlen;
 
-	if((lenin = read(device_fd, packet->data, MTU)) <= 0) {
-		logger(LOG_ERR, "Error while reading from %s %s: %s", device_info,
+	if((inlen = read(device_fd, DATA(packet), MTU)) <= 0) {
+		logger(DEBUG_ALWAYS, LOG_ERR, "Error while reading from %s %s: %s", device_info,
 			   device, strerror(errno));
 		return false;
 	}
 
-	packet->len = lenin;
-
-	device_total_in += packet->len;
+	packet->len = inlen;
 
-	ifdebug(TRAFFIC) logger(LOG_DEBUG, "Read packet of %d bytes from %s", packet->len,
+	logger(DEBUG_TRAFFIC, LOG_DEBUG, "Read packet of %d bytes from %s", packet->len,
 			   device_info);
 
 	return true;
 }
 
 static bool write_packet(vpn_packet_t *packet) {
-	ifdebug(TRAFFIC) logger(LOG_DEBUG, "Writing packet of %d bytes to %s",
+	logger(DEBUG_TRAFFIC, LOG_DEBUG, "Writing packet of %d bytes to %s",
 			   packet->len, device_info);
 
-	if(write(device_fd, packet->data, packet->len) < 0) {
-		logger(LOG_ERR, "Can't write to %s %s: %s", device_info, device,
+	if(write(device_fd, DATA(packet), packet->len) < 0) {
+		logger(DEBUG_ALWAYS, LOG_ERR, "Can't write to %s %s: %s", device_info, device,
 			   strerror(errno));
 		return false;
 	}
 
-	device_total_out += packet->len;
-
 	return true;
 }
 
-static void dump_device_stats(void) {
-	logger(LOG_DEBUG, "Statistics for %s %s:", device_info, device);
-	logger(LOG_DEBUG, " total bytes in:  %10"PRIu64, device_total_in);
-	logger(LOG_DEBUG, " total bytes out: %10"PRIu64, device_total_out);
-}
-
 const devops_t raw_socket_devops = {
 	.setup = setup_device,
 	.close = close_device,
 	.read = read_packet,
 	.write = write_packet,
-	.dump_stats = dump_device_stats,
 };
+
+#else
+
+static bool not_supported(void) {
+	logger(DEBUG_ALWAYS, LOG_ERR, "Raw socket device not supported on this platform");
+	return false;
+}
+
+const devops_t raw_socket_devops = {
+	.setup = not_supported,
+	.close = NULL,
+	.read = NULL,
+	.write = NULL,
+};
+#endif