X-Git-Url: http://git.meshlink.io/?a=blobdiff_plain;f=src%2Flinux%2Fdevice.c;fp=src%2Flinux%2Fdevice.c;h=0000000000000000000000000000000000000000;hb=1c1ea3e501944f1e49cb65add689d9cd6dea8af6;hp=6ed1622c08a5f1442174f459e07db4351f93fcdd;hpb=7f7b53dc2011fc8ceda1e0678d9f78b1dbd8c1d1;p=meshlink

diff --git a/src/linux/device.c b/src/linux/device.c
deleted file mode 100644
index 6ed1622c..00000000
--- a/src/linux/device.c
+++ /dev/null
@@ -1,188 +0,0 @@
-/*
-    device.c -- Interaction with Linux ethertap and tun/tap device
-    Copyright (C) 2001-2005 Ivo Timmermans,
-                  2001-2013 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
-    the Free Software Foundation; either version 2 of the License, or
-    (at your option) any later version.
-
-    This program is distributed in the hope that it will be useful,
-    but WITHOUT ANY WARRANTY; without even the implied warranty of
-    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-    GNU General Public License for more details.
-
-    You should have received a copy of the GNU General Public License along
-    with this program; if not, write to the Free Software Foundation, Inc.,
-    51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
-*/
-
-#include "../system.h"
-
-#include <linux/if_tun.h>
-#define DEFAULT_DEVICE "/dev/net/tun"
-
-#include "../conf.h"
-#include "../device.h"
-#include "../logger.h"
-#include "../names.h"
-#include "../net.h"
-#include "../route.h"
-#include "../utils.h"
-#include "../xalloc.h"
-#include "../device.h"
-
-typedef enum device_type_t {
-	DEVICE_TYPE_TUN,
-	DEVICE_TYPE_TAP,
-} device_type_t;
-
-int device_fd = -1;
-static device_type_t device_type;
-char *device = NULL;
-char *iface = NULL;
-static char *type = NULL;
-static char ifrname[IFNAMSIZ];
-static char *device_info;
-
-static bool setup_device(void) {
-	if(!get_config_string(lookup_config(config_tree, "Device"), &device))
-		device = xstrdup(DEFAULT_DEVICE);
-
-	if(!get_config_string(lookup_config(config_tree, "Interface"), &iface))
-		if(netname)
-			iface = xstrdup(netname);
-
-	device_fd = open(device, O_RDWR | O_NONBLOCK);
-
-	if(device_fd < 0) {
-		logger(DEBUG_ALWAYS, LOG_ERR, "Could not open %s: %s", device, strerror(errno));
-		return false;
-	}
-
-#ifdef FD_CLOEXEC
-	fcntl(device_fd, F_SETFD, FD_CLOEXEC);
-#endif
-
-	struct ifreq ifr = {{{0}}};
-
-	get_config_string(lookup_config(config_tree, "DeviceType"), &type);
-
-	if(type && strcasecmp(type, "tun") && strcasecmp(type, "tap")) {
-		logger(DEBUG_ALWAYS, LOG_ERR, "Unknown device type %s!", type);
-		return false;
-	}
-
-	if((type && !strcasecmp(type, "tun")) || (!type && routing_mode == RMODE_ROUTER)) {
-		ifr.ifr_flags = IFF_TUN;
-		device_type = DEVICE_TYPE_TUN;
-		device_info = "Linux tun/tap device (tun mode)";
-	} else {
-		if (routing_mode == RMODE_ROUTER)
-			overwrite_mac = true;
-		ifr.ifr_flags = IFF_TAP | IFF_NO_PI;
-		device_type = DEVICE_TYPE_TAP;
-		device_info = "Linux tun/tap device (tap mode)";
-	}
-
-#ifdef IFF_ONE_QUEUE
-	/* Set IFF_ONE_QUEUE flag... */
-
-	bool t1q = false;
-	if(get_config_bool(lookup_config(config_tree, "IffOneQueue"), &t1q) && t1q)
-		ifr.ifr_flags |= IFF_ONE_QUEUE;
-#endif
-
-	if(iface)
-		strncpy(ifr.ifr_name, iface, IFNAMSIZ);
-
-	if(!ioctl(device_fd, TUNSETIFF, &ifr)) {
-		strncpy(ifrname, ifr.ifr_name, IFNAMSIZ);
-		free(iface);
-		iface = xstrdup(ifrname);
-	}
-
-	logger(DEBUG_ALWAYS, LOG_INFO, "%s is a %s", device, device_info);
-
-	return true;
-}
-
-static void close_device(void) {
-	close(device_fd);
-
-	free(type);
-	free(device);
-	free(iface);
-}
-
-static bool read_packet(vpn_packet_t *packet) {
-	int inlen;
-
-	switch(device_type) {
-		case DEVICE_TYPE_TUN:
-			inlen = read(device_fd, packet->data + 10, MTU - 10);
-
-			if(inlen <= 0) {
-				logger(DEBUG_ALWAYS, LOG_ERR, "Error while reading from %s %s: %s",
-					   device_info, device, strerror(errno));
-				return false;
-			}
-
-			memset(packet->data, 0, 12);
-			packet->len = inlen + 10;
-			break;
-		case DEVICE_TYPE_TAP:
-			inlen = read(device_fd, packet->data, MTU);
-
-			if(inlen <= 0) {
-				logger(DEBUG_ALWAYS, LOG_ERR, "Error while reading from %s %s: %s",
-					   device_info, device, strerror(errno));
-				return false;
-			}
-
-			packet->len = inlen;
-			break;
-		default:
-			abort();
-	}
-
-	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) {
-	logger(DEBUG_TRAFFIC, LOG_DEBUG, "Writing packet of %d bytes to %s",
-			   packet->len, device_info);
-
-	switch(device_type) {
-		case DEVICE_TYPE_TUN:
-			packet->data[10] = packet->data[11] = 0;
-			if(write(device_fd, packet->data + 10, packet->len - 10) < 0) {
-				logger(DEBUG_ALWAYS, LOG_ERR, "Can't write to %s %s: %s", device_info, device,
-					   strerror(errno));
-				return false;
-			}
-			break;
-		case DEVICE_TYPE_TAP:
-			if(write(device_fd, packet->data, packet->len) < 0) {
-				logger(DEBUG_ALWAYS, LOG_ERR, "Can't write to %s %s: %s", device_info, device,
-					   strerror(errno));
-				return false;
-			}
-			break;
-		default:
-			abort();
-	}
-
-	return true;
-}
-
-const devops_t os_devops = {
-	.setup = setup_device,
-	.close = close_device,
-	.read = read_packet,
-	.write = write_packet,
-};