* tunnel endpoints. It has less protocol overhead than IPSec in Tunnel
* mode and allows tunneling of every ETHER TYPE protocol (e.g.
* ethernet, ip, arp ...). satp directly includes cryptography and
- * message authentication based on the methodes used by SRTP. It is
+ * message authentication based on the methods used by SRTP. It is
* intended to deliver a generic, scaleable and secure solution for
* tunneling and relaying of packets of any protocol.
- *
*
- * Copyright (C) 2007-2008 Christian Pointner <equinox@anytun.org>
+ *
+ * Copyright (C) 2007-2014 Christian Pointner <equinox@anytun.org>
*
* This file is part of uAnytun.
*
* uAnytun is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 3 as
- * published by the Free Software Foundation.
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * any later version.
*
* uAnytun is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
*
* You should have received a copy of the GNU General Public License
* along with uAnytun. If not, see <http://www.gnu.org/licenses/>.
+ *
+ * In addition, as a special exception, the copyright holders give
+ * permission to link the code of portions of this program with the
+ * OpenSSL library under certain conditions as described in each
+ * individual source file, and distribute linked combinations
+ * including the two.
+ * You must obey the GNU General Public License in all respects
+ * for all of the code used other than OpenSSL. If you modify
+ * file(s) with this exception, you may extend this exception to your
+ * version of the file(s), but you are not obligated to do so. If you
+ * do not wish to do so, delete this exception statement from your
+ * version. If you delete this exception statement from all source
+ * files in the program, then also delete it here.
*/
#include "datatypes.h"
int tun_init(tun_device_t* dev, const char* dev_name, const char* dev_type, const char* ifcfg_addr, u_int16_t ifcfg_prefix)
{
- if(!dev)
+ if(!dev)
return -1;
-
+
tun_conf(dev, dev_name, dev_type, ifcfg_addr, ifcfg_prefix, 1400);
dev->actual_name_ = NULL;
tun_close(dev);
return -2;
}
-
+
dev->fd_ = open(device_file_tmp, O_RDWR);
free(device_file_tmp);
if(dev->fd_ >= 0)
log_printf(ERROR, "can't open device file dynamically: no unused node left");
else
log_printf(ERROR, "can't open device file (%s): %s", device_file, strerror(errno));
-
+
tun_close(dev);
return -1;
}
dev->with_pi_ = 1;
if(dev->type_ == TYPE_TAP)
dev->with_pi_ = 0;
-
- struct tuninfo ti;
+
+ struct tuninfo ti;
if(ioctl(dev->fd_, TUNGIFINFO, &ti) < 0) {
log_printf(ERROR, "can't enable multicast for interface: %s", strerror(errno));
return -1;
- }
+ }
ti.flags |= IFF_MULTICAST;
if(dev->type_ == TYPE_TUN)
ti.flags &= ~IFF_POINTOPOINT;
-
+
if(ioctl(dev->fd_, TUNSIFINFO, &ti) < 0) {
log_printf(ERROR, "can't enable multicast for interface: %s", strerror(errno));
return -1;
return 0;
}
-#elif defined(__GNUC__) && defined(__FreeBSD__)
+#elif defined(__GNUC__) && (defined(__FreeBSD__) || defined(__FreeBSD_kernel__))
int tun_init_post(tun_device_t* dev)
{
if(ioctl(dev->fd_, TUNSLMODE, &arg) < 0) {
log_printf(ERROR, "can't disable link-layer mode for interface: %s", strerror(errno));
return -1;
- }
+ }
arg = 1;
if(ioctl(dev->fd_, TUNSIFHEAD, &arg) < 0) {
log_printf(ERROR, "can't enable multi-af mode for interface: %s", strerror(errno));
return -1;
- }
+ }
arg = IFF_BROADCAST;
arg |= IFF_MULTICAST;
if(ioctl(dev->fd_, TUNSIFMODE, &arg) < 0) {
log_printf(ERROR, "can't enable multicast for interface: %s", strerror(errno));
return -1;
- }
+ }
}
return 0;
{
struct iovec iov[2];
u_int32_t type;
-
+
iov[0].iov_base = &type;
iov[0].iov_len = sizeof(type);
iov[1].iov_base = buf;
struct iovec iov[2];
u_int32_t type;
struct ip *hdr = (struct ip*)buf;
-
+
type = 0;
if(hdr->ip_v == 4)
type = htonl(AF_INET);
else
type = htonl(AF_INET6);
-
+
iov[0].iov_base = &type;
iov[0].iov_len = sizeof(type);
iov[1].iov_base = buf;
if(!dev || !dev->actual_name_ || !dev->net_addr_ || !dev->net_mask_)
return;
-
- char* command = NULL;
- char* netmask;
char* end;
if(dev->type_ == TYPE_TAP) {
#if defined(__GNUC__) && defined(__OpenBSD__)
- end = " link0";
-#elif defined(__GNUC__) && defined(__FreeBSD__)
- end = " up";
+ end = "link0";
+#elif defined(__GNUC__) && (defined(__FreeBSD__) || defined(__FreeBSD_kernel__))
+ end = "up";
#elif defined(__GNUC__) && defined(__NetBSD__)
- end = "";
+ end = NULL;
#else
#error This Device works just for OpenBSD, FreeBSD or NetBSD
#endif
}
else
- end = " up";
+ end = "up";
- asprintf(&command, "/sbin/ifconfig %s %s netmask %s mtu %d%s", dev->actual_name_, dev->net_addr_,
- dev->net_mask_, dev->mtu_, end);
- if(!command) {
+ char* mtu_str = NULL;
+ asprintf(&mtu_str, "%d", dev->mtu_);
+ if(!mtu_str) {
log_printf(ERROR, "Execution of ifconfig failed");
return;
}
- int result = system(command);
- if(result == -1)
- log_printf(ERROR, "Execution of ifconfig failed");
- else
- log_printf(NOTICE, "ifconfig returned %d", WEXITSTATUS(result));
+ char* const argv[] = { "/sbin/ifconfig", dev->actual_name_, dev->net_addr_, "netmask", dev->net_mask_, "mtu", mtu_str, end, NULL };
+ char* const evp[] = { NULL };
+ uanytun_exec("/sbin/ifconfig", argv, evp);
- free(command);
+ free(mtu_str);
}
projects / debian / uanytun.git / blobdiff