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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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97
src/bsd/device.c
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@ -1,7 +1,7 @@
/*
device.c -- Interaction BSD tun/tap device
Copyright (C) 2001-2005 Ivo Timmermans,
2001-2011 Guus Sliepen <guus@tinc-vpn.org>
2001-2012 Guus Sliepen <guus@tinc-vpn.org>
2009 Grzegorz Dymarek <gregd72002@googlemail.com>
This program is free software; you can redistribute it and/or modify
@ -33,7 +33,12 @@
#include "bsd/tunemu.h"
#endif
#define DEFAULT_DEVICE "/dev/tun0"
#define DEFAULT_TUN_DEVICE "/dev/tun0"
#if defined(HAVE_FREEBSD) || defined(HAVE_NETBSD)
#define DEFAULT_TAP_DEVICE "/dev/tap0"
#else
#define DEFAULT_TAP_DEVICE "/dev/tun0"
#endif
typedef enum device_type {
DEVICE_TYPE_TUN,
@ -58,18 +63,22 @@ static device_type_t device_type = DEVICE_TYPE_TUNIFHEAD;
static device_type_t device_type = DEVICE_TYPE_TUN;
#endif
bool setup_device(void) {
static bool setup_device(void) {
char *type;
if(!get_config_string(lookup_config(config_tree, "Device"), &device))
device = xstrdup(DEFAULT_DEVICE);
if(!get_config_string(lookup_config(config_tree, "Device"), &device)) {
if(routing_mode == RMODE_ROUTER)
device = xstrdup(DEFAULT_TUN_DEVICE);
else
device = xstrdup(DEFAULT_TAP_DEVICE);
}
if(!get_config_string(lookup_config(config_tree, "Interface"), &iface))
iface = xstrdup(strrchr(device, '/') ? strrchr(device, '/') + 1 : device);
if(get_config_string(lookup_config(config_tree, "DeviceType"), &type)) {
if(!strcasecmp(type, "tun"))
/* use default */;
/* use default */;
#ifdef HAVE_TUNEMU
else if(!strcasecmp(type, "tunemu"))
device_type = DEVICE_TYPE_TUNEMU;
@ -81,7 +90,7 @@ bool setup_device(void) {
else if(!strcasecmp(type, "tap"))
device_type = DEVICE_TYPE_TAP;
else {
logger(LOG_ERR, "Unknown device type %s!", type);
logger(DEBUG_ALWAYS, LOG_ERR, "Unknown device type %s!", type);
return false;
}
} else {
@ -93,7 +102,7 @@ bool setup_device(void) {
#ifdef HAVE_TUNEMU
case DEVICE_TYPE_TUNEMU: {
char dynamic_name[256] = "";
device_fd = tunemu_open(dynamic_name);
device_fd = tunemu_open(dynamic_name);
}
break;
#endif
@ -102,19 +111,23 @@ bool setup_device(void) {
}
if(device_fd < 0) {
logger(LOG_ERR, "Could not open %s: %s", device, strerror(errno));
logger(DEBUG_ALWAYS, LOG_ERR, "Could not open %s: %s", device, strerror(errno));
return false;
}
#ifdef FD_CLOEXEC
fcntl(device_fd, F_SETFD, FD_CLOEXEC);
#endif
switch(device_type) {
default:
device_type = DEVICE_TYPE_TUN;
case DEVICE_TYPE_TUN:
#ifdef TUNSIFHEAD
{
{
const int zero = 0;
if(ioctl(device_fd, TUNSIFHEAD, &zero, sizeof zero) == -1) {
logger(LOG_ERR, "System call `%s' failed: %s", "ioctl", strerror(errno));
logger(DEBUG_ALWAYS, LOG_ERR, "System call `%s' failed: %s", "ioctl", strerror(errno));
return false;
}
}
@ -133,7 +146,7 @@ bool setup_device(void) {
{
const int one = 1;
if(ioctl(device_fd, TUNSIFHEAD, &one, sizeof one) == -1) {
logger(LOG_ERR, "System call `%s' failed: %s", "ioctl", strerror(errno));
logger(DEBUG_ALWAYS, LOG_ERR, "System call `%s' failed: %s", "ioctl", strerror(errno));
return false;
}
}
@ -160,22 +173,22 @@ bool setup_device(void) {
iface = xstrdup(ifr.ifr_name);
}
}
#endif
break;
#ifdef HAVE_TUNEMU
case DEVICE_TYPE_TUNEMU:
device_info = "BSD tunemu device";
device_info = "BSD tunemu device";
break;
#endif
}
logger(LOG_INFO, "%s is a %s", device, device_info);
logger(DEBUG_ALWAYS, LOG_INFO, "%s is a %s", device, device_info);
return true;
}
void close_device(void) {
static void close_device(void) {
switch(device_type) {
#ifdef HAVE_TUNEMU
case DEVICE_TYPE_TUNEMU:
@ -190,7 +203,7 @@ void close_device(void) {
free(iface);
}
bool read_packet(vpn_packet_t *packet) {
static bool read_packet(vpn_packet_t *packet) {
int inlen;
switch(device_type) {
@ -204,7 +217,7 @@ bool read_packet(vpn_packet_t *packet) {
inlen = read(device_fd, packet->data + 14, MTU - 14);
if(inlen <= 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;
}
@ -219,12 +232,13 @@ bool read_packet(vpn_packet_t *packet) {
packet->data[13] = 0xDD;
break;
default:
ifdebug(TRAFFIC) logger(LOG_ERR,
logger(DEBUG_TRAFFIC, LOG_ERR,
"Unknown IP version %d while reading packet from %s %s",
packet->data[14] >> 4, device_info, device);
return false;
}
memset(packet->data, 0, 12);
packet->len = inlen + 14;
break;
@ -233,7 +247,7 @@ bool read_packet(vpn_packet_t *packet) {
struct iovec vector[2] = {{&type, sizeof type}, {packet->data + 14, MTU - 14}};
if((inlen = readv(device_fd, vector, 2)) <= 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;
}
@ -250,19 +264,20 @@ bool read_packet(vpn_packet_t *packet) {
break;
default:
ifdebug(TRAFFIC) logger(LOG_ERR,
logger(DEBUG_TRAFFIC, LOG_ERR,
"Unknown address family %x while reading packet from %s %s",
ntohl(type), device_info, device);
return false;
}
memset(packet->data, 0, 12);
packet->len = inlen + 10;
break;
}
case DEVICE_TYPE_TAP:
if((inlen = read(device_fd, 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;
}
@ -273,23 +288,23 @@ bool read_packet(vpn_packet_t *packet) {
default:
return false;
}
device_total_in += packet->len;
ifdebug(TRAFFIC) logger(LOG_DEBUG, "Read packet of %d bytes from %s",
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) {
ifdebug(TRAFFIC) logger(LOG_DEBUG, "Writing packet of %d bytes to %s",
static bool write_packet(vpn_packet_t *packet) {
logger(DEBUG_TRAFFIC, LOG_DEBUG, "Writing packet of %d bytes to %s",
packet->len, device_info);
switch(device_type) {
case DEVICE_TYPE_TUN:
if(write(device_fd, packet->data + 14, packet->len - 14) < 0) {
logger(LOG_ERR, "Error while writing to %s %s: %s", device_info,
logger(DEBUG_ALWAYS, LOG_ERR, "Error while writing to %s %s: %s", device_info,
device, strerror(errno));
return false;
}
@ -299,7 +314,7 @@ bool write_packet(vpn_packet_t *packet) {
u_int32_t type;
struct iovec vector[2] = {{&type, sizeof type}, {packet->data + 14, packet->len - 14}};
int af;
af = (packet->data[12] << 8) + packet->data[13];
switch (af) {
@ -310,23 +325,23 @@ bool write_packet(vpn_packet_t *packet) {
type = htonl(AF_INET6);
break;
default:
ifdebug(TRAFFIC) logger(LOG_ERR,
logger(DEBUG_TRAFFIC, LOG_ERR,
"Unknown address family %x while writing packet to %s %s",
af, device_info, device);
return false;
}
if(writev(device_fd, vector, 2) < 0) {
logger(LOG_ERR, "Can't write to %s %s: %s", device_info, device,
logger(DEBUG_ALWAYS, LOG_ERR, "Can't write to %s %s: %s", device_info, device,
strerror(errno));
return false;
}
break;
}
case DEVICE_TYPE_TAP:
if(write(device_fd, packet->data, packet->len) < 0) {
logger(LOG_ERR, "Error while writing to %s %s: %s", device_info,
logger(DEBUG_ALWAYS, LOG_ERR, "Error while writing to %s %s: %s", device_info,
device, strerror(errno));
return false;
}
@ -335,7 +350,7 @@ bool write_packet(vpn_packet_t *packet) {
#ifdef HAVE_TUNEMU
case DEVICE_TYPE_TUNEMU:
if(tunemu_write(device_fd, packet->data + 14, packet->len - 14) < 0) {
logger(LOG_ERR, "Error while writing to %s %s: %s", device_info,
logger(DEBUG_ALWAYS, LOG_ERR, "Error while writing to %s %s: %s", device_info,
device, strerror(errno));
return false;
}
@ -351,8 +366,16 @@ 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,
};