X-Git-Url: https://www.tinc-vpn.org/git/browse?p=tinc;a=blobdiff_plain;f=src%2Fuml_socket%2Fdevice.c;fp=src%2Fuml_socket%2Fdevice.c;h=0000000000000000000000000000000000000000;hp=a371e7b439eb1cb1efb0b8199aef2291054032f0;hb=178e52f76ef4ba40748c13ea7e518837394d6dbc;hpb=5672863e59e6a114ac6b66de98254b14266c0e61

diff --git a/src/uml_socket/device.c b/src/uml_socket/device.c
deleted file mode 100644
index a371e7b4..00000000
--- a/src/uml_socket/device.c
+++ /dev/null
@@ -1,283 +0,0 @@
-/*
-    device.c -- UML network socket
-    Copyright (C) 2002-2005 Ivo Timmermans,
-                  2002-2009 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 <sys/un.h>
-
-#include "conf.h"
-#include "device.h"
-#include "net.h"
-#include "logger.h"
-#include "utils.h"
-#include "route.h"
-#include "xalloc.h"
-
-int device_fd = -1;
-static int listen_fd = -1;
-static int request_fd = -1;
-static int data_fd = -1;
-static int write_fd = -1;
-static int state = 0;
-char *device = NULL;
-char *iface = NULL;
-static char *device_info;
-
-extern char *identname;
-extern volatile bool running;
-
-static uint64_t device_total_in = 0;
-static uint64_t device_total_out = 0;
-
-enum request_type { REQ_NEW_CONTROL };
-
-static struct request {
-  uint32_t magic;
-  uint32_t version;
-  enum request_type type;
-  struct sockaddr_un sock;
-} request;
-
-static struct sockaddr_un data_sun;
-
-bool setup_device(void) {
-	struct sockaddr_un listen_sun;
-	static const int one = 1;
-	struct {
-		char zero;
-		int pid;
-		int usecs;
-	} name;
-	struct timeval tv;
-
-	if(!get_config_string(lookup_config(config_tree, "Device"), &device))
-		xasprintf(&device, LOCALSTATEDIR "/run/%s.umlsocket", identname);
-
-	get_config_string(lookup_config(config_tree, "Interface"), &iface);
-
-	device_info = "UML network socket";
-
-	if((write_fd = socket(PF_UNIX, SOCK_DGRAM, 0)) < 0) {
-		logger(LOG_ERR, "Could not open write %s: %s", device_info, strerror(errno));
-		running = false;
-		return false;
-	}
-
-	setsockopt(write_fd, SOL_SOCKET, SO_REUSEADDR, &one, sizeof one);
-
-	if(fcntl(write_fd, F_SETFL, O_NONBLOCK) < 0) {
-		logger(LOG_ERR, "System call `%s' failed: %s", "fcntl", strerror(errno));
-		running = false;
-		return false;
-	}
-
-	if((data_fd = socket(PF_UNIX, SOCK_DGRAM, 0)) < 0) {
-		logger(LOG_ERR, "Could not open data %s: %s", device_info, strerror(errno));
-		running = false;
-		return false;
-	}
-
-	setsockopt(data_fd, SOL_SOCKET, SO_REUSEADDR, &one, sizeof one);
-
-	if(fcntl(data_fd, F_SETFL, O_NONBLOCK) < 0) {
-		logger(LOG_ERR, "System call `%s' failed: %s", "fcntl", strerror(errno));
-		running = false;
-		return false;
-	}
-
-	name.zero = 0;
-	name.pid = getpid();
-	gettimeofday(&tv, NULL);
-	name.usecs = tv.tv_usec;
-	data_sun.sun_family = AF_UNIX;
-	memcpy(&data_sun.sun_path, &name, sizeof name);
-	
-	if(bind(data_fd, (struct sockaddr *)&data_sun, sizeof data_sun) < 0) {
-		logger(LOG_ERR, "Could not bind data %s: %s", device_info, strerror(errno));
-		running = false;
-		return false;
-	}
-
-	if((listen_fd = socket(PF_UNIX, SOCK_STREAM, 0)) < 0) {
-		logger(LOG_ERR, "Could not open %s: %s", device_info,
-			   strerror(errno));
-		return false;
-	}
-
-	setsockopt(listen_fd, SOL_SOCKET, SO_REUSEADDR, &one, sizeof one);
-
-	if(fcntl(listen_fd, F_SETFL, O_NONBLOCK) < 0) {
-		logger(LOG_ERR, "System call `%s' failed: %s", "fcntl", strerror(errno));
-		return false;
-	}
-
-	listen_sun.sun_family = AF_UNIX;
-	strncpy(listen_sun.sun_path, device, sizeof listen_sun.sun_path);
-	if(bind(listen_fd, (struct sockaddr *)&listen_sun, sizeof listen_sun) < 0) {
-		logger(LOG_ERR, "Could not bind %s to %s: %s", device_info, device, strerror(errno));
-		return false;
-	}
-
-	if(listen(listen_fd, 1) < 0) {
-		logger(LOG_ERR, "Could not listen on %s %s: %s", device_info, device, strerror(errno));
-		return false;
-	}
-
-	device_fd = listen_fd;
-	state = 0;
-
-	logger(LOG_INFO, "%s is a %s", device, device_info);
-
-	if(routing_mode == RMODE_ROUTER)
-		overwrite_mac = true;
-
-	return true;
-}
-
-void close_device(void) {
-	if(listen_fd >= 0)
-		close(listen_fd);
-
-	if(request_fd >= 0)
-		close(request_fd);
-
-	if(data_fd >= 0)
-		close(data_fd);
-
-	if(write_fd >= 0)
-		close(write_fd);
-
-	unlink(device);
-
-	free(device);
-	if(iface) free(iface);
-}
-
-bool read_packet(vpn_packet_t *packet) {
-	int lenin;
-
-	switch(state) {
-		case 0: {
-			struct sockaddr sa;
-			socklen_t salen = sizeof sa;
-
-			request_fd = accept(listen_fd, &sa, &salen);
-			if(request_fd < 0) {
-				logger(LOG_ERR, "Could not accept connection to %s %s: %s", device_info, device, strerror(errno));
-				return false;
-			}
-
-			if(fcntl(listen_fd, F_SETFL, O_NONBLOCK) < 0) {
-				logger(LOG_ERR, "System call `%s' failed: %s", "fcntl", strerror(errno));
-				running = false;
-				return false;
-			}
-
-			close(listen_fd);
-			listen_fd = -1;
-			device_fd = request_fd;
-			state = 1;
-
-			return false;
-		}
-
-		case 1: {
-			if((lenin = read(request_fd, &request, sizeof request)) != sizeof request) {
-				logger(LOG_ERR, "Error while reading request from %s %s: %s", device_info,
-					   device, strerror(errno));
-				running = false;
-				return false;
-			}
-
-			if(request.magic != 0xfeedface || request.version != 3 || request.type != REQ_NEW_CONTROL) {
-				logger(LOG_ERR, "Unknown magic %x, version %d, request type %d from %s %s",
-						request.magic, request.version, request.type, device_info, device);
-				running = false;
-				return false;
-			}
-
-			if(connect(write_fd, &request.sock, sizeof request.sock) < 0) {
-				logger(LOG_ERR, "Could not bind write %s: %s", device_info, strerror(errno));
-				running = false;
-				return false;
-			}
-
-			write(request_fd, &data_sun, sizeof data_sun);
-			device_fd = data_fd;
-
-			logger(LOG_INFO, "Connection with UML established");
-
-			state = 2;
-			return false;
-		}
-
-		case 2: {
-			if((lenin = read(data_fd, packet->data, MTU)) <= 0) {
-				logger(LOG_ERR, "Error while reading from %s %s: %s", device_info,
-					   device, strerror(errno));
-				running = false;
-				return false;
-			}
-
-			packet->len = lenin;
-
-			device_total_in += packet->len;
-
-			ifdebug(TRAFFIC) logger(LOG_DEBUG, "Read packet of %d bytes from %s", packet->len,
-					   device_info);
-
-			return true;
-		}
-
-		default:
-			logger(LOG_ERR, "Invalid value for state variable in " __FILE__);
-			abort();
-	}
-}
-
-bool write_packet(vpn_packet_t *packet) {
-	if(state != 2) {
-		ifdebug(TRAFFIC) logger(LOG_DEBUG, "Dropping packet of %d bytes to %s: not connected to UML yet",
-				packet->len, device_info);
-		return false;
-	}
-
-	ifdebug(TRAFFIC) logger(LOG_DEBUG, "Writing packet of %d bytes to %s",
-			   packet->len, device_info);
-
-	if(write(write_fd, packet->data, packet->len) < 0) {
-		if(errno != EINTR && errno != EAGAIN) {
-			logger(LOG_ERR, "Can't write to %s %s: %s", device_info, device, strerror(errno));
-			running = false;
-		}
-
-		return false;
-	}
-
-	device_total_out += packet->len;
-
-	return true;
-}
-
-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);
-}