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Add a variable offset to vpn_packet_t, drop sptps_packet_t.

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The offset value indicates where the actual payload starts, so we can
process both legacy and SPTPS UDP packets without having to do casting
tricks and/or moving memory around.
This commit is contained in:
Guus Sliepen 2014-12-24 22:23:24 +01:00
parent 107d9c7da5
commit 6b92ac505d
14 changed files with 234 additions and 212 deletions
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6
src/cygwin/device.c
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@ -1,7 +1,7 @@
/*
device.c -- Interaction with Windows tap driver in a Cygwin environment
Copyright (C) 2002-2005 Ivo Timmermans,
2002-2013 Guus Sliepen <guus@tinc-vpn.org>
2002-2014 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
@ -227,7 +227,7 @@ static void close_device(void) {
static bool read_packet(vpn_packet_t *packet) {
int inlen;
if((inlen = read(sp[0], packet->data, MTU)) <= 0) {
if((inlen = read(sp[0], DATA(packet), MTU)) <= 0) {
logger(DEBUG_ALWAYS, LOG_ERR, "Error while reading from %s %s: %s", device_info,
device, strerror(errno));
return false;
@ -247,7 +247,7 @@ static bool write_packet(vpn_packet_t *packet) {
logger(DEBUG_TRAFFIC, LOG_DEBUG, "Writing packet of %d bytes to %s",
packet->len, device_info);
if(!WriteFile (device_handle, packet->data, packet->len, &outlen, NULL)) {
if(!WriteFile (device_handle, DATA(packet), packet->len, &outlen, NULL)) {
logger(DEBUG_ALWAYS, LOG_ERR, "Error while writing to %s %s: %s", device_info, device, winerror(GetLastError()));
return false;
}