X-Git-Url: https://www.tinc-vpn.org/git/browse?p=tinc;a=blobdiff_plain;f=src%2Fopenbsd%2Fdevice.c;h=e82f3c372af564c4a07b475129d2249928f71c37;hp=f47cc4488f5e6e8494550fd01b2811eeac329738;hb=dc3b7d47f3297e22161787a1d6e06205140cf0fb;hpb=9e81a6ab5f50df4f5ca36d5303b91a8d5a0e753e diff --git a/src/openbsd/device.c b/src/openbsd/device.c index f47cc448..e82f3c37 100644 --- a/src/openbsd/device.c +++ b/src/openbsd/device.c @@ -1,7 +1,7 @@ /* device.c -- Interaction with OpenBSD tun device - Copyright (C) 2001-2002 Ivo Timmermans , - 2001-2002 Guus Sliepen + Copyright (C) 2001-2003 Ivo Timmermans , + 2001-2003 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 @@ -17,30 +17,16 @@ along with this program; if not, write to the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - $Id: device.c,v 1.3 2002/04/13 11:08:31 zarq Exp $ + $Id: device.c,v 1.4 2003/08/27 13:47:50 guus Exp $ */ -#include "config.h" - -#include -#include -#include +#include "system.h" #include -#include -#include -#include -#include -#include -#include -#include - -#include + #include "conf.h" +#include "logger.h" #include "net.h" -#include "subnet.h" -#include "logging.h" - -#include "system.h" +#include "utils.h" #define DEFAULT_DEVICE "/dev/tun0" @@ -48,148 +34,131 @@ #define DEVICE_TYPE_TUNTAP 1 int device_fd = -1; -int device_type; char *device; -char *interface; +char *iface; char *device_info; int device_total_in = 0; int device_total_out = 0; -extern subnet_t mymac; - -/* - open the local ethertap device -*/ -int setup_device(void) +bool setup_device(void) { - if(!get_config_string(lookup_config(config_tree, "Device"), &device)) - device = DEFAULT_DEVICE; - - if(!get_config_string(lookup_config(config_tree, "Interface"), &interface)) - interface = rindex(device, '/')?rindex(device, '/')+1:device; -cp - if((device_fd = open(device, O_RDWR | O_NONBLOCK)) < 0) - { - syslog(LOG_ERR, _("Could not open %s: %s"), device, strerror(errno)); - return -1; - } -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; - - device_info = _("OpenBSD tun device"); - - syslog(LOG_INFO, _("%s is a %s"), device, device_info); -cp - return 0; + cp(); + + if(!get_config_string(lookup_config(config_tree, "Device"), &device)) + device = DEFAULT_DEVICE; + + if(!get_config_string(lookup_config(config_tree, "Interface"), &iface)) + iface = rindex(device, '/') ? rindex(device, '/') + 1 : device; + if((device_fd = open(device, O_RDWR | O_NONBLOCK)) < 0) { + logger(LOG_ERR, _("Could not open %s: %s"), device, strerror(errno)); + return false; + } + + device_info = _("OpenBSD tun device"); + + logger(LOG_INFO, _("%s is a %s"), device, device_info); + + return true; } void close_device(void) { -cp - close(device_fd); -cp + cp(); + + close(device_fd); } -int read_packet(vpn_packet_t *packet) +bool read_packet(vpn_packet_t *packet) { - int lenin; - u_int32_t type; - struct iovec vector[2] = {{&type, sizeof(type)}, {packet->data + 14, MTU - 14}}; -cp - - if((lenin = readv(device_fd, vector, 2)) <= 0) - { - syslog(LOG_ERR, _("Error while reading from %s %s: %s"), device_info, device, strerror(errno)); - return -1; - } - - memcpy(packet->data, mymac.net.mac.address.x, 6); - memcpy(packet->data + 6, mymac.net.mac.address.x, 6); - - switch(ntohl(type)) - { - case AF_INET: - packet->data[12] = 0x8; - packet->data[13] = 0x0; - break; - case AF_INET6: - packet->data[12] = 0x86; - packet->data[13] = 0xDD; - break; - default: - if(debug_lvl >= DEBUG_TRAFFIC) - syslog(LOG_ERR, _("Unknown address family %d while reading packet from %s %s"), ntohl(type), device_info, device); - return -1; - } - - packet->len = lenin + 10; - - device_total_in += packet->len; - - if(debug_lvl >= DEBUG_TRAFFIC) - { - syslog(LOG_DEBUG, _("Read packet of %d bytes from %s"), packet->len, device_info); - } - - return 0; -cp + int lenin; + u_int32_t type; + struct iovec vector[2] = {{&type, sizeof(type)}, {packet->data + 14, MTU - 14}}; + + cp(); + + if((lenin = readv(device_fd, vector, 2)) <= 0) { + logger(LOG_ERR, _("Error while reading from %s %s: %s"), device_info, + device, strerror(errno)); + return false; + } + + switch (ntohl(type)) { + case AF_INET: + packet->data[12] = 0x8; + packet->data[13] = 0x0; + break; + + case AF_INET6: + packet->data[12] = 0x86; + packet->data[13] = 0xDD; + break; + + default: + ifdebug(TRAFFIC) logger(LOG_ERR, + _ ("Unknown address family %d while reading packet from %s %s"), + ntohl(type), device_info, device); + return false; + } + + packet->len = lenin + 10; + + device_total_in += packet->len; + + ifdebug(TRAFFIC) logger(LOG_DEBUG, _("Read packet of %d bytes from %s"), packet->len, + device_info); + + return true; } -int write_packet(vpn_packet_t *packet) +bool write_packet(vpn_packet_t *packet) { - u_int32_t type; - struct iovec vector[2]; - int af; -cp - if(debug_lvl >= DEBUG_TRAFFIC) - syslog(LOG_DEBUG, _("Writing packet of %d bytes to %s"), - packet->len, device_info); - - af = (packet->data[12] << 8) + packet->data[13]; - - switch(af) - { - case 0x800: - type = htonl(AF_INET); - break; - case 0x86DD: - type = htonl(AF_INET6); - break; - default: - if(debug_lvl >= DEBUG_TRAFFIC) - syslog(LOG_ERR, _("Unknown address family %d while writing packet to %s %s"), af, device_info, device); - return -1; - } - - vector[0].iov_base = &type; - vector[0].iov_len = sizeof(type); - vector[1].iov_base = packet->data + 14; - vector[1].iov_len = packet->len - 14; - - if(writev(device_fd, vector, 2) < 0) - { - syslog(LOG_ERR, _("Can't write to %s %s: %s"), device_info, device, strerror(errno)); - return -1; - } - - device_total_out += packet->len; -cp + u_int32_t type; + struct iovec vector[2]; + int af; + + cp(); + + ifdebug(TRAFFIC) logger(LOG_DEBUG, _("Writing packet of %d bytes to %s"), + packet->len, device_info); + + af = (packet->data[12] << 8) + packet->data[13]; + + switch (af) { + case 0x800: + type = htonl(AF_INET); + break; + case 0x86DD: + type = htonl(AF_INET6); + break; + default: + ifdebug(TRAFFIC) logger(LOG_ERR, + _("Unknown address family %d while writing packet to %s %s"), + af, device_info, device); + return false; + } + + vector[0].iov_base = &type; + vector[0].iov_len = sizeof(type); + vector[1].iov_base = packet->data + 14; + vector[1].iov_len = packet->len - 14; + + if(writev(device_fd, vector, 2) < 0) { + logger(LOG_ERR, _("Can't write to %s %s: %s"), device_info, device, + strerror(errno)); + return false; + } + + device_total_out += packet->len; + + 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 + cp(); + + 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); }