/*
device.c -- Interaction BSD tun/tap device
Copyright (C) 2001-2005 Ivo Timmermans,
- 2001-2013 Guus Sliepen <guus@tinc-vpn.org>
+ 2001-2014 Guus Sliepen <guus@tinc-vpn.org>
2009 Grzegorz Dymarek <gregd72002@googlemail.com>
This program is free software; you can redistribute it and/or modify
#ifdef ENABLE_TUNEMU
case DEVICE_TYPE_TUNEMU:
if(device_type == DEVICE_TYPE_TUNEMU)
- inlen = tunemu_read(device_fd, packet->data + 14, MTU - 14);
+ inlen = tunemu_read(device_fd, DATA(packet) + 14, MTU - 14);
else
#endif
- inlen = read(device_fd, packet->data + 14, MTU - 14);
+ inlen = read(device_fd, DATA(packet) + 14, MTU - 14);
if(inlen <= 0) {
logger(DEBUG_ALWAYS, LOG_ERR, "Error while reading from %s %s: %s", device_info,
return false;
}
- switch(packet->data[14] >> 4) {
+ switch(DATA(packet)[14] >> 4) {
case 4:
- packet->data[12] = 0x08;
- packet->data[13] = 0x00;
+ DATA(packet)[12] = 0x08;
+ DATA(packet)[13] = 0x00;
break;
case 6:
- packet->data[12] = 0x86;
- packet->data[13] = 0xDD;
+ DATA(packet)[12] = 0x86;
+ DATA(packet)[13] = 0xDD;
break;
default:
logger(DEBUG_TRAFFIC, LOG_ERR,
"Unknown IP version %d while reading packet from %s %s",
- packet->data[14] >> 4, device_info, device);
+ DATA(packet)[14] >> 4, device_info, device);
return false;
}
- memset(packet->data, 0, 12);
+ memset(DATA(packet), 0, 12);
packet->len = inlen + 14;
break;
case DEVICE_TYPE_TUNIFHEAD: {
u_int32_t type;
- struct iovec vector[2] = {{&type, sizeof type}, {packet->data + 14, MTU - 14}};
+ struct iovec vector[2] = {{&type, sizeof type}, {DATA(packet) + 14, MTU - 14}};
if((inlen = readv(device_fd, vector, 2)) <= 0) {
logger(DEBUG_ALWAYS, LOG_ERR, "Error while reading from %s %s: %s", device_info,
switch (ntohl(type)) {
case AF_INET:
- packet->data[12] = 0x08;
- packet->data[13] = 0x00;
+ DATA(packet)[12] = 0x08;
+ DATA(packet)[13] = 0x00;
break;
case AF_INET6:
- packet->data[12] = 0x86;
- packet->data[13] = 0xDD;
+ DATA(packet)[12] = 0x86;
+ DATA(packet)[13] = 0xDD;
break;
default:
return false;
}
- memset(packet->data, 0, 12);
+ memset(DATA(packet), 0, 12);
packet->len = inlen + 10;
break;
}
case DEVICE_TYPE_TAP:
- if((inlen = read(device_fd, packet->data, MTU)) <= 0) {
+ 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;
switch(device_type) {
case DEVICE_TYPE_TUN:
- if(write(device_fd, packet->data + 14, packet->len - 14) < 0) {
+ if(write(device_fd, DATA(packet) + 14, packet->len - 14) < 0) {
logger(DEBUG_ALWAYS, LOG_ERR, "Error while writing to %s %s: %s", device_info,
device, strerror(errno));
return false;
case DEVICE_TYPE_TUNIFHEAD: {
u_int32_t type;
- struct iovec vector[2] = {{&type, sizeof type}, {packet->data + 14, packet->len - 14}};
+ struct iovec vector[2] = {{&type, sizeof type}, {DATA(packet) + 14, packet->len - 14}};
int af;
- af = (packet->data[12] << 8) + packet->data[13];
+ af = (DATA(packet)[12] << 8) + DATA(packet)[13];
switch (af) {
case 0x0800:
}
case DEVICE_TYPE_TAP:
- if(write(device_fd, packet->data, packet->len) < 0) {
+ if(write(device_fd, DATA(packet), packet->len) < 0) {
logger(DEBUG_ALWAYS, LOG_ERR, "Error while writing to %s %s: %s", device_info,
device, strerror(errno));
return false;
#ifdef ENABLE_TUNEMU
case DEVICE_TYPE_TUNEMU:
- if(tunemu_write(device_fd, packet->data + 14, packet->len - 14) < 0) {
+ if(tunemu_write(device_fd, DATA(packet) + 14, packet->len - 14) < 0) {
logger(DEBUG_ALWAYS, LOG_ERR, "Error while writing to %s %s: %s", device_info,
device, strerror(errno));
return false;