X-Git-Url: https://www.tinc-vpn.org/git/browse?p=tinc;a=blobdiff_plain;f=src%2Fraw_socket%2Fdevice.c;h=30bb1845cc2b5bbe4c719ad12b95eab0f4b773c6;hp=8dd00a2080f39ec541a2b7e0bc7889e201c9ba7f;hb=4c85542894f7fca823b119b05e07179deb24229a;hpb=6f9f6779e6bd1dd7bb795b42dad550863a386ca8 diff --git a/src/raw_socket/device.c b/src/raw_socket/device.c index 8dd00a20..30bb1845 100644 --- a/src/raw_socket/device.c +++ b/src/raw_socket/device.c @@ -1,7 +1,7 @@ /* device.c -- raw socket - Copyright (C) 2002 Ivo Timmermans , - 2002 Guus Sliepen + Copyright (C) 2002-2005 Ivo Timmermans, + 2002-2009 Guus Sliepen 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 @@ -13,76 +13,56 @@ 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., 675 Mass Ave, Cambridge, MA 02139, USA. - - $Id: device.c,v 1.1.2.3 2002/09/09 22:33:31 guus Exp $ + 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 "config.h" - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include +#include "system.h" + #include -#include -#include #include "conf.h" #include "net.h" -#include "subnet.h" - -#include "system.h" +#include "logger.h" +#include "utils.h" +#include "route.h" +#include "xalloc.h" int device_fd = -1; -int device_type; -char *device; -char *interface; -char ifrname[IFNAMSIZ]; -char *device_info; +char *device = NULL; +char *iface = NULL; +static char ifrname[IFNAMSIZ]; +static char *device_info; -int device_total_in = 0; -int device_total_out = 0; +static int device_total_in = 0; +static int device_total_out = 0; -extern subnet_t mymac; - -/* - open the local ethertap device -*/ -int setup_device(void) -{ +bool setup_device(void) { struct ifreq ifr; struct sockaddr_ll sa; - cp if(!get_config_string - (lookup_config(config_tree, "Interface"), &interface)) - interface = "eth0"; + + if(!get_config_string(lookup_config(config_tree, "Interface"), &iface)) + iface = xstrdup("eth0"); if(!get_config_string(lookup_config(config_tree, "Device"), &device)) - device = interface; + device = xstrdup(iface); + + device_info = "raw socket"; - device_info = _("raw socket"); - cp if((device_fd = socket(PF_PACKET, SOCK_RAW, htons(ETH_P_ALL))) < 0) { - syslog(LOG_ERR, _("Could not open %s: %s"), device_info, + if((device_fd = socket(PF_PACKET, SOCK_RAW, htons(ETH_P_ALL))) < 0) { + logger(LOG_ERR, "Could not open %s: %s", device_info, strerror(errno)); - return -1; + return false; } memset(&ifr, 0, sizeof(ifr)); - strncpy(ifr.ifr_ifrn.ifrn_name, interface, IFNAMSIZ); + strncpy(ifr.ifr_ifrn.ifrn_name, iface, IFNAMSIZ); if(ioctl(device_fd, SIOCGIFINDEX, &ifr)) { close(device_fd); - syslog(LOG_ERR, _("Can't find interface %s: %s"), interface, + logger(LOG_ERR, "Can't find interface %s: %s", iface, strerror(errno)); - return -1; + return false; } memset(&sa, '0', sizeof(sa)); @@ -91,72 +71,58 @@ int setup_device(void) sa.sll_ifindex = ifr.ifr_ifindex; if(bind(device_fd, (struct sockaddr *) &sa, (socklen_t) sizeof(sa))) { - syslog(LOG_ERR, _("Could not bind to %s: %s"), device, strerror(errno)); - return -1; + logger(LOG_ERR, "Could not bind %s to %s: %s", device, iface, strerror(errno)); + return false; } - cp - /* Set default MAC address for ethertap devices */ - mymac.type = SUBNET_MAC; - mymac.net.mac.address.x[0] = 0xfe; - mymac.net.mac.address.x[1] = 0xfd; - mymac.net.mac.address.x[2] = 0x00; - mymac.net.mac.address.x[3] = 0x00; - mymac.net.mac.address.x[4] = 0x00; - mymac.net.mac.address.x[5] = 0x00; - - syslog(LOG_INFO, _("%s is a %s"), device, device_info); - cp return 0; + + logger(LOG_INFO, "%s is a %s", device, device_info); + + return true; } -void close_device(void) -{ - cp close(device_fd); +void close_device(void) { + close(device_fd); + + free(device); + free(iface); } -/* - read, encrypt and send data that is - available through the ethertap device -*/ -int read_packet(vpn_packet_t *packet) -{ +bool read_packet(vpn_packet_t *packet) { int lenin; - cp if((lenin = read(device_fd, packet->data, MTU)) <= 0) { - syslog(LOG_ERR, _("Error while reading from %s %s: %s"), device_info, + + if((lenin = read(device_fd, packet->data, MTU)) <= 0) { + logger(LOG_ERR, "Error while reading from %s %s: %s", device_info, device, strerror(errno)); - return -1; + return false; } packet->len = lenin; device_total_in += packet->len; - if(debug_lvl >= DEBUG_TRAFFIC) { - syslog(LOG_DEBUG, _("Read packet of %d bytes from %s"), packet->len, + ifdebug(TRAFFIC) logger(LOG_DEBUG, "Read packet of %d bytes from %s", packet->len, device_info); - } - return 0; -cp} + return true; +} -int write_packet(vpn_packet_t *packet) -{ - cp if(debug_lvl >= DEBUG_TRAFFIC) - syslog(LOG_DEBUG, _("Writing packet of %d bytes to %s"), +bool write_packet(vpn_packet_t *packet) { + ifdebug(TRAFFIC) logger(LOG_DEBUG, "Writing packet of %d bytes to %s", packet->len, device_info); if(write(device_fd, packet->data, packet->len) < 0) { - syslog(LOG_ERR, _("Can't write to %s %s: %s"), device_info, device, + logger(LOG_ERR, "Can't write to %s %s: %s", device_info, device, strerror(errno)); - return -1; + return false; } device_total_out += packet->len; - cp return 0; + + return true; } -void dump_device_stats(void) -{ - cp syslog(LOG_DEBUG, _("Statistics for %s %s:"), device_info, device); - syslog(LOG_DEBUG, _(" total bytes in: %10d"), device_total_in); - syslog(LOG_DEBUG, _(" total bytes out: %10d"), device_total_out); -cp} +void dump_device_stats(void) { + logger(LOG_DEBUG, "Statistics for %s %s:", device_info, device); + logger(LOG_DEBUG, " total bytes in: %10d", device_total_in); + logger(LOG_DEBUG, " total bytes out: %10d", device_total_out); +}