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Import Upstream version 1.1~pre3

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This commit is contained in:
Guus Sliepen 2019-08-26 13:44:49 +02:00
parent 02de1cd2f1
commit 34d5939212
136 changed files with 13943 additions and 4867 deletions
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66
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,
2002-2009 Guus Sliepen <guus@tinc-vpn.org>
2002-2012 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
@ -45,7 +45,7 @@ static uint64_t device_total_out = 0;
static pid_t reader_pid;
static int sp[2];
bool setup_device(void) {
static bool setup_device(void) {
HKEY key, key2;
int i, err;
@ -64,7 +64,7 @@ bool setup_device(void) {
/* Open registry and look for network adapters */
if(RegOpenKeyEx(HKEY_LOCAL_MACHINE, NETWORK_CONNECTIONS_KEY, 0, KEY_READ, &key)) {
logger(LOG_ERR, "Unable to read registry: %s", winerror(GetLastError()));
logger(DEBUG_ALWAYS, LOG_ERR, "Unable to read registry: %s", winerror(GetLastError()));
return false;
}
@ -77,7 +77,7 @@ bool setup_device(void) {
snprintf(regpath, sizeof regpath, "%s\\%s\\Connection", NETWORK_CONNECTIONS_KEY, adapterid);
if(RegOpenKeyEx(HKEY_LOCAL_MACHINE, regpath, 0, KEY_READ, &key2))
if(RegOpenKeyEx(HKEY_LOCAL_MACHINE, regpath, 0, KEY_READ, &key2))
continue;
len = sizeof adaptername;
@ -116,7 +116,7 @@ bool setup_device(void) {
RegCloseKey(key);
if(!found) {
logger(LOG_ERR, "No Windows tap device found!");
logger(DEBUG_ALWAYS, LOG_ERR, "No Windows tap device found!");
return false;
}
@ -127,22 +127,22 @@ bool setup_device(void) {
iface = xstrdup(adaptername);
snprintf(tapname, sizeof tapname, USERMODEDEVICEDIR "%s" TAPSUFFIX, device);
/* Now we are going to open this device twice: once for reading and once for writing.
We do this because apparently it isn't possible to check for activity in the select() loop.
Furthermore I don't really know how to do it the "Windows" way. */
if(socketpair(AF_UNIX, SOCK_DGRAM, PF_UNIX, sp)) {
logger(LOG_DEBUG, "System call `%s' failed: %s", "socketpair", strerror(errno));
logger(DEBUG_ALWAYS, LOG_DEBUG, "System call `%s' failed: %s", "socketpair", strerror(errno));
return false;
}
/* The parent opens the tap device for writing. */
device_handle = CreateFile(tapname, GENERIC_WRITE, FILE_SHARE_READ, 0, OPEN_EXISTING, FILE_ATTRIBUTE_SYSTEM , 0);
if(device_handle == INVALID_HANDLE_VALUE) {
logger(LOG_ERR, "Could not open Windows tap device %s (%s) for writing: %s", device, iface, winerror(GetLastError()));
logger(DEBUG_ALWAYS, LOG_ERR, "Could not open Windows tap device %s (%s) for writing: %s", device, iface, winerror(GetLastError()));
return false;
}
@ -151,7 +151,7 @@ bool setup_device(void) {
/* Get MAC address from tap device */
if(!DeviceIoControl(device_handle, TAP_IOCTL_GET_MAC, mymac.x, sizeof mymac.x, mymac.x, sizeof mymac.x, &len, 0)) {
logger(LOG_ERR, "Could not get MAC address from Windows tap device %s (%s): %s", device, iface, winerror(GetLastError()));
logger(DEBUG_ALWAYS, LOG_ERR, "Could not get MAC address from Windows tap device %s (%s): %s", device, iface, winerror(GetLastError()));
return false;
}
@ -164,14 +164,14 @@ bool setup_device(void) {
reader_pid = fork();
if(reader_pid == -1) {
logger(LOG_DEBUG, "System call `%s' failed: %s", "fork", strerror(errno));
logger(DEBUG_ALWAYS, LOG_DEBUG, "System call `%s' failed: %s", "fork", strerror(errno));
return false;
}
if(!reader_pid) {
/* The child opens the tap device for reading, blocking.
It passes everything it reads to the socket. */
char buf[MTU];
long inlen;
@ -180,13 +180,13 @@ bool setup_device(void) {
device_handle = CreateFile(tapname, GENERIC_READ, FILE_SHARE_WRITE, 0, OPEN_EXISTING, FILE_ATTRIBUTE_SYSTEM, 0);
if(device_handle == INVALID_HANDLE_VALUE) {
logger(LOG_ERR, "Could not open Windows tap device %s (%s) for reading: %s", device, iface, winerror(GetLastError()));
logger(DEBUG_ALWAYS, LOG_ERR, "Could not open Windows tap device %s (%s) for reading: %s", device, iface, winerror(GetLastError()));
buf[0] = 0;
write(sp[1], buf, 1);
exit(1);
}
logger(LOG_DEBUG, "Tap reader forked and running.");
logger(DEBUG_ALWAYS, LOG_DEBUG, "Tap reader forked and running.");
/* Notify success */
@ -203,18 +203,18 @@ bool setup_device(void) {
read(device_fd, &gelukt, 1);
if(gelukt != 1) {
logger(LOG_DEBUG, "Tap reader failed!");
logger(DEBUG_ALWAYS, LOG_DEBUG, "Tap reader failed!");
return false;
}
device_info = "Windows tap device";
logger(LOG_INFO, "%s (%s) is a %s", device, iface, device_info);
logger(DEBUG_ALWAYS, LOG_INFO, "%s (%s) is a %s", device, iface, device_info);
return true;
}
void close_device(void) {
static void close_device(void) {
close(sp[0]);
close(sp[1]);
CloseHandle(device_handle);
@ -225,33 +225,33 @@ void close_device(void) {
free(iface);
}
bool read_packet(vpn_packet_t *packet) {
static bool read_packet(vpn_packet_t *packet) {
int inlen;
if((inlen = read(sp[0], packet->data, MTU)) <= 0) {
logger(LOG_ERR, "Error while reading from %s %s: %s", device_info,
logger(DEBUG_ALWAYS, LOG_ERR, "Error while reading from %s %s: %s", device_info,
device, strerror(errno));
return false;
}
packet->len = inlen;
device_total_in += packet->len;
ifdebug(TRAFFIC) logger(LOG_DEBUG, "Read packet of %d bytes from %s", packet->len,
logger(DEBUG_TRAFFIC, LOG_DEBUG, "Read packet of %d bytes from %s", packet->len,
device_info);
return true;
}
bool write_packet(vpn_packet_t *packet) {
static bool write_packet(vpn_packet_t *packet) {
long outlen;
ifdebug(TRAFFIC) logger(LOG_DEBUG, "Writing packet of %d bytes to %s",
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)) {
logger(LOG_ERR, "Error while writing to %s %s: %s", device_info, device, winerror(GetLastError()));
logger(DEBUG_ALWAYS, LOG_ERR, "Error while writing to %s %s: %s", device_info, device, winerror(GetLastError()));
return false;
}
@ -260,8 +260,16 @@ bool write_packet(vpn_packet_t *packet) {
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);
static void dump_device_stats(void) {
logger(DEBUG_ALWAYS, LOG_DEBUG, "Statistics for %s %s:", device_info, device);
logger(DEBUG_ALWAYS, LOG_DEBUG, " total bytes in: %10"PRIu64, device_total_in);
logger(DEBUG_ALWAYS, LOG_DEBUG, " total bytes out: %10"PRIu64, device_total_out);
}
const devops_t os_devops = {
.setup = setup_device,
.close = close_device,
.read = read_packet,
.write = write_packet,
.dump_stats = dump_device_stats,
};