;;
esac
+AC_ARG_ENABLE(uml,
+ AS_HELP_STRING([--enable-uml], [enable support for User Mode Linux]),
+ [ AC_DEFINE(ENABLE_UML, 1, [Support for UML])
+ uml=true
+ ]
+)
+
+AC_ARG_ENABLE(vde,
+ AS_HELP_STRING([--enable-vde], [enable support for Virtual Distributed Ethernet]),
+ [ AC_CHECK_HEADERS(libvdeplug_dyn.h, [], [AC_MSG_ERROR([VDE plug header files not found.]); break])
+ AC_DEFINE(ENABLE_VDE, 1, [Support for VDE])
+ vde=true
+ ]
+)
+
AC_ARG_ENABLE(tunemu,
AS_HELP_STRING([--enable-tunemu], [enable support for the tunemu driver]),
[ AC_DEFINE(ENABLE_TUNEMU, 1, [Support for tunemu])
[AC_DEFINE(WITH_WINDOWS2000, 1, [Compile with support for Windows 2000])]
)
+AM_CONDITIONAL(UML, test "$uml" = true)
+AM_CONDITIONAL(VDE, test "$vde" = true)
AM_CONDITIONAL(TUNEMU, test "$tunemu" = true)
AC_CACHE_SAVE
The info pages of the tinc package contain more information
about configuring the virtual network device.
-.It Va DeviceType Li = tun | tunnohead | tunifhead | tap Po only supported on BSD platforms Pc
+.It Va DeviceType Li = Ar type Pq platform dependent
The type of the virtual network device.
-Tinc will normally automatically select the right type, and this option should not be used.
-However, in case tinc does not seem to correctly interpret packets received from the virtual network device,
-using this option might help.
+Tinc will normally automatically select the right type of tun/tap interface, and this option should not be used.
+However, this option can be used to select one of the special interface types, if support for them is compiled in.
.Bl -tag -width indent
-.It tun
+.It dummy
+Use a dummy interface.
+No packets are ever read or written to a virtual network device.
+Useful for testing, or when setting up a node that only forwards packets for other nodes.
+
+.It raw_socket
+Open a raw socket, and bind it to a pre-existing
+.Va Interface
+(eth0 by default).
+All packets are read from this interface.
+Packets received for the local node are written to the raw socket.
+However, at least on Linux, the operating system does not process IP packets destined for the local host.
+
+.It uml Pq not compiled in by default
+Create a UNIX socket with the filename specified by
+.Va Device ,
+or
+.Pa @localstatedir@/run/ Ns Ar NETNAME Ns Pa .umlsocket
+if not specified.
+.Nm tinc
+will wait for a User Mode Linux instance to connect to this socket.
+
+.It vde Pq not compiled in by default
+Uses the libvdeplug library to connect to a Virtual Distributed Ethernet switch,
+using the UNIX socket specified by
+.Va Device ,
+or
+.Pa @localstatedir@/run/vde.ctl
+if not specified.
+.El
+
+Also, in case tinc does not seem to correctly interpret packets received from the virtual network device,
+it can be used to change the way packets are interpreted:
+
+.Bl -tag -width indent
+
+.It tun Pq BSD only
Set type to tun.
Depending on the platform, this can either be with or without an address family header (see below).
-.It tunnohead
+.It tunnohead Pq BSD only
Set type to tun without an address family header.
Tinc will expect packets read from the virtual network device to start with an IP header.
On some platforms IPv6 packets cannot be read from or written to the device in this mode.
-.It tunifhead
+.It tunifhead Pq BSD only
Set type to tun with an address family header.
Tinc will expect packets read from the virtual network device
to start with a four byte header containing the address family,
followed by an IP header.
This mode should support both IPv4 and IPv6 packets.
-.It tap
+.It tap Pq BSD only
Set type to tap.
Tinc will expect packets read from the virtual network device
to start with an Ethernet header.
See also @ref{Device files}.
@cindex DeviceType
-@item DeviceType = <tun|tunnohead|tunifhead|tap> (only supported on BSD platforms)
+@item DeviceType = <@var{type}> (platform dependent)
The type of the virtual network device.
-Tinc will normally automatically select the right type, and this option should not be used.
-However, in case tinc does not seem to correctly interpret packets received from the virtual network device,
-using this option might help.
+Tinc will normally automatically select the right type of tun/tap interface, and this option should not be used.
+However, this option can be used to select one of the special interface types, if support for them is compiled in.
@table @asis
-@item tun
+@cindex dummy
+@item dummy
+Use a dummy interface.
+No packets are ever read or written to a virtual network device.
+Useful for testing, or when setting up a node that only forwards packets for other nodes.
+
+@cindex raw_socket
+@item raw_socket
+Open a raw socket, and bind it to a pre-existing
+@var{Interface} (eth0 by default).
+All packets are read from this interface.
+Packets received for the local node are written to the raw socket.
+However, at least on Linux, the operating system does not process IP packets destined for the local host.
+
+@cindex UML
+@item uml (not compiled in by default)
+Create a UNIX socket with the filename specified by
+@var{Device}, or @file{@value{localstatedir}/run/@var{netname}.umlsocket}
+if not specified.
+Tinc will wait for a User Mode Linux instance to connect to this socket.
+
+@cindex VDE
+@item vde (not compiled in by default)
+Uses the libvdeplug library to connect to a Virtual Distributed Ethernet switch,
+using the UNIX socket specified by
+@var{Device}, or @file{@value{localstatedir}/run/vde.ctl}
+if not specified.
+@end table
+
+Also, in case tinc does not seem to correctly interpret packets received from the virtual network device,
+it can be used to change the way packets are interpreted:
+
+@table @asis
+@item tun (BSD only)
Set type to tun.
Depending on the platform, this can either be with or without an address family header (see below).
@cindex tunnohead
-@item tunnohead
+@item tunnohead (BSD only)
Set type to tun without an address family header.
Tinc will expect packets read from the virtual network device to start with an IP header.
On some platforms IPv6 packets cannot be read from or written to the device in this mode.
@cindex tunifhead
-@item tunifhead
+@item tunifhead (BSD only)
Set type to tun with an address family header.
Tinc will expect packets read from the virtual network device
to start with a four byte header containing the address family,
followed by an IP header.
This mode should support both IPv4 and IPv6 packets.
-@item tap
+@item tap (BSD only)
Set type to tap.
Tinc will expect packets read from the virtual network device
to start with an Ethernet header.
sbin_PROGRAMS = tincd
-EXTRA_DIST = linux/device.c bsd/device.c solaris/device.c cygwin/device.c mingw/device.c mingw/common.h raw_socket/device.c uml_socket/device.c vde/device.c
+EXTRA_DIST = linux/device.c bsd/device.c solaris/device.c cygwin/device.c mingw/device.c mingw/common.h
tincd_SOURCES = conf.c connection.c edge.c event.c graph.c logger.c meta.c net.c net_packet.c net_setup.c \
net_socket.c netutl.c node.c process.c protocol.c protocol_auth.c protocol_edge.c protocol_misc.c \
- protocol_key.c protocol_subnet.c route.c subnet.c tincd.c
+ protocol_key.c protocol_subnet.c route.c subnet.c tincd.c \
+ dummy_device.c raw_socket_device.c
+
+if UML
+tincd_SOURCES += uml_device.c
+endif
+
+if VDE
+tincd_SOURCES += vde_device.c
+endif
if TUNEMU
tincd_SOURCES += bsd/tunemu.c
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))
return true;
}
-void close_device(void) {
+static void close_device(void) {
switch(device_type) {
#ifdef HAVE_TUNEMU
case DEVICE_TYPE_TUNEMU:
free(iface);
}
-bool read_packet(vpn_packet_t *packet) {
+static bool read_packet(vpn_packet_t *packet) {
int lenin;
switch(device_type) {
return true;
}
-bool write_packet(vpn_packet_t *packet) {
+static bool write_packet(vpn_packet_t *packet) {
ifdebug(TRAFFIC) logger(LOG_DEBUG, "Writing packet of %d bytes to %s",
packet->len, device_info);
return true;
}
-void dump_device_stats(void) {
+static 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);
}
+
+const devops_t os_devops = {
+ .setup = setup_device,
+ .close = close_device,
+ .read = read_packet,
+ .write = write_packet,
+ .dump_stats = dump_device_stats,
+};
/*
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>
+ 2002-2011 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
static pid_t reader_pid;
static int sp[2];
-bool setup_device(void) {
+static bool setup_device(void) {
HKEY key, key2;
int i, err;
return true;
}
-void close_device(void) {
+static void close_device(void) {
close(sp[0]);
close(sp[1]);
CloseHandle(device_handle);
free(iface);
}
-bool read_packet(vpn_packet_t *packet) {
+static bool read_packet(vpn_packet_t *packet) {
int lenin;
if((lenin = read(sp[0], packet->data, MTU)) <= 0) {
return true;
}
-bool write_packet(vpn_packet_t *packet) {
+static bool write_packet(vpn_packet_t *packet) {
long lenout;
ifdebug(TRAFFIC) logger(LOG_DEBUG, "Writing packet of %d bytes to %s",
return true;
}
-void dump_device_stats(void) {
+static 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);
}
+
+const devops_t os_devops = {
+ .setup = setup_device,
+ .close = close_device,
+ .read = read_packet,
+ .write = write_packet,
+ .dump_stats = dump_device_stats,
+};
/*
- net.h -- generic header for device.c
+ device.h -- generic header for device.c
Copyright (C) 2001-2005 Ivo Timmermans
- 2001-2006 Guus Sliepen <guus@tinc-vpn.org>
+ 2001-2011 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
extern char *iface;
-extern bool setup_device(void);
-extern void close_device(void);
-extern bool read_packet(struct vpn_packet_t *);
-extern bool write_packet(struct vpn_packet_t *);
-extern void dump_device_stats(void);
+typedef struct devops_t {
+ bool (*setup)(void);
+ void (*close)(void);
+ bool (*read)(struct vpn_packet_t *);
+ bool (*write)(struct vpn_packet_t *);
+ void (*dump_stats)(void);
+} devops_t;
+
+extern const devops_t os_devops;
+extern const devops_t dummy_devops;
+extern const devops_t raw_socket_devops;
+extern const devops_t uml_devops;
+extern const devops_t vde_devops;
+extern devops_t devops;
#endif /* __TINC_DEVICE_H__ */
+++ /dev/null
-/*
- device.c -- Dummy device
- Copyright (C) 2009 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
- the Free Software Foundation; either version 2 of the License, or
- (at your option) any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License along
- with this program; if not, write to the Free Software Foundation, Inc.,
- 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
-*/
-
-#include "system.h"
-
-#include "device.h"
-#include "logger.h"
-#include "net.h"
-
-int device_fd = -1;
-char *device = "dummy";
-char *iface = "dummy";
-static char *device_info = "dummy device";
-
-static uint64_t device_total_in = 0;
-static uint64_t device_total_out = 0;
-
-bool setup_device(void) {
- logger(LOG_INFO, "%s (%s) is a %s", device, iface, device_info);
- return true;
-}
-
-void close_device(void) {
-}
-
-bool read_packet(vpn_packet_t *packet) {
- return false;
-}
-
-bool write_packet(vpn_packet_t *packet) {
- device_total_out += packet->len;
- 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);
-}
--- /dev/null
+/*
+ device.c -- Dummy device
+ Copyright (C) 2011 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
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License along
+ with this program; if not, write to the Free Software Foundation, Inc.,
+ 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+
+#include "system.h"
+
+#include "device.h"
+#include "logger.h"
+#include "net.h"
+
+static char *device_info = "dummy device";
+
+static uint64_t device_total_in = 0;
+static uint64_t device_total_out = 0;
+
+static bool setup_device(void) {
+ device = "dummy";
+ iface = "dummy";
+ logger(LOG_INFO, "%s (%s) is a %s", device, iface, device_info);
+ return true;
+}
+
+static void close_device(void) {
+}
+
+static bool read_packet(vpn_packet_t *packet) {
+ return false;
+}
+
+static bool write_packet(vpn_packet_t *packet) {
+ device_total_out += packet->len;
+ return true;
+}
+
+static 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);
+}
+
+const devops_t dummy_devops = {
+ .setup = setup_device,
+ .close = close_device,
+ .read = read_packet,
+ .write = write_packet,
+ .dump_stats = dump_device_stats,
+};
/*
device.c -- Interaction with Linux ethertap and tun/tap device
Copyright (C) 2001-2005 Ivo Timmermans,
- 2001-2009 Guus Sliepen <guus@tinc-vpn.org>
+ 2001-2011 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
static uint64_t device_total_in = 0;
static uint64_t device_total_out = 0;
-bool setup_device(void) {
+static bool setup_device(void) {
struct ifreq ifr;
bool t1q = false;
return true;
}
-void close_device(void) {
+static void close_device(void) {
close(device_fd);
free(device);
free(iface);
}
-bool read_packet(vpn_packet_t *packet) {
+static bool read_packet(vpn_packet_t *packet) {
int lenin;
switch(device_type) {
return true;
}
-bool write_packet(vpn_packet_t *packet) {
+static bool write_packet(vpn_packet_t *packet) {
ifdebug(TRAFFIC) logger(LOG_DEBUG, "Writing packet of %d bytes to %s",
packet->len, device_info);
return true;
}
-void dump_device_stats(void) {
+static 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);
}
+
+const devops_t os_devops = {
+ .setup = setup_device,
+ .close = close_device,
+ .read = read_packet,
+ .write = write_packet,
+ .dump_stats = dump_device_stats,
+};
}
}
-bool setup_device(void) {
+static bool setup_device(void) {
HKEY key, key2;
int i;
return true;
}
-void close_device(void) {
+static void close_device(void) {
CloseHandle(device_handle);
free(device);
free(iface);
}
-bool read_packet(vpn_packet_t *packet) {
+static bool read_packet(vpn_packet_t *packet) {
return false;
}
-bool write_packet(vpn_packet_t *packet) {
+static bool write_packet(vpn_packet_t *packet) {
long lenout;
OVERLAPPED overlapped = {0};
return true;
}
-void dump_device_stats(void) {
+static 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);
}
+
+const devops_t os_devops = {
+ .setup = setup_device,
+ .close = close_device,
+ .read = read_packet,
+ .write = write_packet,
+ .dump_stats = dump_device_stats,
+};
/* check input from kernel */
if(device_fd >= 0 && FD_ISSET(device_fd, readset)) {
- if(read_packet(&packet)) {
+ if(devops.read(&packet)) {
errors = 0;
packet.priority = 0;
route(myself, &packet);
if(n == myself) {
if(overwrite_mac)
memcpy(packet->data, mymac.x, ETH_ALEN);
- write_packet(packet);
+ devops.write(packet);
return;
}
/*
net_setup.c -- Setup.
Copyright (C) 1998-2005 Ivo Timmermans,
- 2000-2010 Guus Sliepen <guus@tinc-vpn.org>
+ 2000-2011 Guus Sliepen <guus@tinc-vpn.org>
2006 Scott Lamb <slamb@slamb.org>
2010 Brandon Black <blblack@gmail.com>
#include "xalloc.h"
char *myport;
+devops_t devops;
bool read_rsa_public_key(connection_t *c) {
FILE *fp;
static bool setup_myself(void) {
config_t *cfg;
subnet_t *subnet;
- char *name, *hostname, *mode, *afname, *cipher, *digest;
+ char *name, *hostname, *mode, *afname, *cipher, *digest, *type;
char *fname = NULL;
char *address = NULL;
char *envp[5];
/* Open device */
- if(!setup_device())
+ if(get_config_string(lookup_config(config_tree, "DeviceType"), &type)) {
+ if(!strcasecmp(type, "dummy"))
+ devops = dummy_devops;
+ else if(!strcasecmp(type, "raw_socket"))
+ devops = raw_socket_devops;
+#ifdef ENABLE_UML
+ else if(!strcasecmp(type, "uml"))
+ devops = uml_devops;
+#endif
+#ifdef ENABLE_VDE
+ else if(!strcasecmp(type, "vde"))
+ devops = vde_devops;
+#endif
+ else {
+ logger(LOG_ERR, "Unknown device type %s!", type);
+ return false;
+ }
+ } else {
+ devops = os_devops;
+ }
+
+ if(!devops.setup())
return false;
/* Run tinc-up script to further initialize the tap interface */
for(i = 0; i < 4; i++)
free(envp[i]);
- close_device();
+ devops.close();
return;
}
}
static RETSIGTYPE sigusr2_handler(int a) {
- dump_device_stats();
+ devops.dump_stats();
dump_nodes();
dump_edges();
dump_subnets();
+++ /dev/null
-/*
- device.c -- raw socket
- Copyright (C) 2002-2005 Ivo Timmermans,
- 2002-2009 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
- the Free Software Foundation; either version 2 of the License, or
- (at your option) any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License along
- with this program; if not, write to the Free Software Foundation, Inc.,
- 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
-*/
-
-#include "system.h"
-
-#include <netpacket/packet.h>
-
-#include "conf.h"
-#include "device.h"
-#include "net.h"
-#include "logger.h"
-#include "utils.h"
-#include "route.h"
-#include "xalloc.h"
-
-int device_fd = -1;
-char *device = NULL;
-char *iface = NULL;
-static char ifrname[IFNAMSIZ];
-static char *device_info;
-
-static uint64_t device_total_in = 0;
-static uint64_t device_total_out = 0;
-
-bool setup_device(void) {
- struct ifreq ifr;
- struct sockaddr_ll sa;
-
- if(!get_config_string(lookup_config(config_tree, "Interface"), &iface))
- iface = xstrdup("eth0");
-
- if(!get_config_string(lookup_config(config_tree, "Device"), &device))
- device = xstrdup(iface);
-
- device_info = "raw socket";
-
- if((device_fd = socket(PF_PACKET, SOCK_RAW, htons(ETH_P_ALL))) < 0) {
- logger(LOG_ERR, "Could not open %s: %s", device_info,
- strerror(errno));
- return false;
- }
-
- memset(&ifr, 0, sizeof(ifr));
- strncpy(ifr.ifr_ifrn.ifrn_name, iface, IFNAMSIZ);
- if(ioctl(device_fd, SIOCGIFINDEX, &ifr)) {
- close(device_fd);
- logger(LOG_ERR, "Can't find interface %s: %s", iface,
- strerror(errno));
- return false;
- }
-
- memset(&sa, '0', sizeof(sa));
- sa.sll_family = AF_PACKET;
- sa.sll_protocol = htons(ETH_P_ALL);
- sa.sll_ifindex = ifr.ifr_ifindex;
-
- if(bind(device_fd, (struct sockaddr *) &sa, (socklen_t) sizeof(sa))) {
- logger(LOG_ERR, "Could not bind %s to %s: %s", device, iface, strerror(errno));
- return false;
- }
-
- logger(LOG_INFO, "%s is a %s", device, device_info);
-
- return true;
-}
-
-void close_device(void) {
- close(device_fd);
-
- free(device);
- free(iface);
-}
-
-bool read_packet(vpn_packet_t *packet) {
- int lenin;
-
- if((lenin = read(device_fd, packet->data, MTU)) <= 0) {
- logger(LOG_ERR, "Error while reading from %s %s: %s", device_info,
- device, strerror(errno));
- return false;
- }
-
- packet->len = lenin;
-
- device_total_in += packet->len;
-
- ifdebug(TRAFFIC) logger(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",
- packet->len, device_info);
-
- if(write(device_fd, packet->data, packet->len) < 0) {
- logger(LOG_ERR, "Can't write to %s %s: %s", device_info, device,
- strerror(errno));
- return false;
- }
-
- device_total_out += packet->len;
-
- 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);
-}
--- /dev/null
+/*
+ device.c -- raw socket
+ Copyright (C) 2002-2005 Ivo Timmermans,
+ 2002-2011 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
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License along
+ with this program; if not, write to the Free Software Foundation, Inc.,
+ 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+
+#include "system.h"
+
+#include <netpacket/packet.h>
+
+#include "conf.h"
+#include "device.h"
+#include "net.h"
+#include "logger.h"
+#include "utils.h"
+#include "route.h"
+#include "xalloc.h"
+
+static char *device_info;
+
+static uint64_t device_total_in = 0;
+static uint64_t device_total_out = 0;
+
+static bool setup_device(void) {
+ struct ifreq ifr;
+ struct sockaddr_ll sa;
+
+ if(!get_config_string(lookup_config(config_tree, "Interface"), &iface))
+ iface = xstrdup("eth0");
+
+ if(!get_config_string(lookup_config(config_tree, "Device"), &device))
+ device = xstrdup(iface);
+
+ device_info = "raw socket";
+
+ if((device_fd = socket(PF_PACKET, SOCK_RAW, htons(ETH_P_ALL))) < 0) {
+ logger(LOG_ERR, "Could not open %s: %s", device_info,
+ strerror(errno));
+ return false;
+ }
+
+ memset(&ifr, 0, sizeof(ifr));
+ strncpy(ifr.ifr_ifrn.ifrn_name, iface, IFNAMSIZ);
+ if(ioctl(device_fd, SIOCGIFINDEX, &ifr)) {
+ close(device_fd);
+ logger(LOG_ERR, "Can't find interface %s: %s", iface,
+ strerror(errno));
+ return false;
+ }
+
+ memset(&sa, '0', sizeof(sa));
+ sa.sll_family = AF_PACKET;
+ sa.sll_protocol = htons(ETH_P_ALL);
+ sa.sll_ifindex = ifr.ifr_ifindex;
+
+ if(bind(device_fd, (struct sockaddr *) &sa, (socklen_t) sizeof(sa))) {
+ logger(LOG_ERR, "Could not bind %s to %s: %s", device, iface, strerror(errno));
+ return false;
+ }
+
+ logger(LOG_INFO, "%s is a %s", device, device_info);
+
+ return true;
+}
+
+static void close_device(void) {
+ close(device_fd);
+
+ free(device);
+ free(iface);
+}
+
+static bool read_packet(vpn_packet_t *packet) {
+ int lenin;
+
+ if((lenin = read(device_fd, packet->data, MTU)) <= 0) {
+ logger(LOG_ERR, "Error while reading from %s %s: %s", device_info,
+ device, strerror(errno));
+ return false;
+ }
+
+ packet->len = lenin;
+
+ device_total_in += packet->len;
+
+ ifdebug(TRAFFIC) logger(LOG_DEBUG, "Read packet of %d bytes from %s", packet->len,
+ device_info);
+
+ return true;
+}
+
+static bool write_packet(vpn_packet_t *packet) {
+ ifdebug(TRAFFIC) logger(LOG_DEBUG, "Writing packet of %d bytes to %s",
+ packet->len, device_info);
+
+ if(write(device_fd, packet->data, packet->len) < 0) {
+ logger(LOG_ERR, "Can't write to %s %s: %s", device_info, device,
+ strerror(errno));
+ return false;
+ }
+
+ device_total_out += packet->len;
+
+ return true;
+}
+
+static 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);
+}
+
+const devops_t raw_socket_devops = {
+ .setup = setup_device,
+ .close = close_device,
+ .read = read_packet,
+ .write = write_packet,
+ .dump_stats = dump_device_stats,
+};
#define DEFAULT_DEVICE "/dev/tun"
int device_fd = -1;
-int ip_fd = -1, if_fd = -1;
+static int ip_fd = -1, if_fd = -1;
char *device = NULL;
char *iface = NULL;
static char *device_info = NULL;
static uint64_t device_total_in = 0;
static uint64_t device_total_out = 0;
-bool setup_device(void) {
+static bool setup_device(void) {
int ppa;
char *ptr;
return true;
}
-void close_device(void) {
+static void close_device(void) {
close(if_fd);
close(ip_fd);
close(device_fd);
free(iface);
}
-bool read_packet(vpn_packet_t *packet) {
+static bool read_packet(vpn_packet_t *packet) {
int lenin;
if((lenin = read(device_fd, packet->data + 14, MTU - 14)) <= 0) {
return true;
}
-bool write_packet(vpn_packet_t *packet) {
+static bool write_packet(vpn_packet_t *packet) {
ifdebug(TRAFFIC) logger(LOG_DEBUG, "Writing packet of %d bytes to %s",
packet->len, device_info);
return true;
}
-void dump_device_stats(void) {
+static 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);
}
+
+const devops_t os_devops = {
+ .setup = setup_device,
+ .close = close_device,
+ .read = read_packet,
+ .write = write_packet,
+ .dump_stats = dump_device_stats,
+};
/* Shutdown properly. */
ifdebug(CONNECTIONS)
- dump_device_stats();
+ devops.dump_stats();
close_network_connections();
--- /dev/null
+/*
+ device.c -- UML network socket
+ Copyright (C) 2002-2005 Ivo Timmermans,
+ 2002-2011 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
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License along
+ with this program; if not, write to the Free Software Foundation, Inc.,
+ 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+
+#include "system.h"
+
+#include <sys/un.h>
+
+#include "conf.h"
+#include "device.h"
+#include "net.h"
+#include "logger.h"
+#include "utils.h"
+#include "route.h"
+#include "xalloc.h"
+
+static int listen_fd = -1;
+static int request_fd = -1;
+static int data_fd = -1;
+static int write_fd = -1;
+static int state = 0;
+static char *device_info;
+
+extern char *identname;
+extern volatile bool running;
+
+static uint64_t device_total_in = 0;
+static uint64_t device_total_out = 0;
+
+enum request_type { REQ_NEW_CONTROL };
+
+static struct request {
+ uint32_t magic;
+ uint32_t version;
+ enum request_type type;
+ struct sockaddr_un sock;
+} request;
+
+static struct sockaddr_un data_sun;
+
+static bool setup_device(void) {
+ struct sockaddr_un listen_sun;
+ static const int one = 1;
+ struct {
+ char zero;
+ int pid;
+ int usecs;
+ } name;
+ struct timeval tv;
+
+ if(!get_config_string(lookup_config(config_tree, "Device"), &device))
+ xasprintf(&device, LOCALSTATEDIR "/run/%s.umlsocket", identname);
+
+ get_config_string(lookup_config(config_tree, "Interface"), &iface);
+
+ device_info = "UML network socket";
+
+ if((write_fd = socket(PF_UNIX, SOCK_DGRAM, 0)) < 0) {
+ logger(LOG_ERR, "Could not open write %s: %s", device_info, strerror(errno));
+ running = false;
+ return false;
+ }
+
+ setsockopt(write_fd, SOL_SOCKET, SO_REUSEADDR, &one, sizeof one);
+
+ if(fcntl(write_fd, F_SETFL, O_NONBLOCK) < 0) {
+ logger(LOG_ERR, "System call `%s' failed: %s", "fcntl", strerror(errno));
+ running = false;
+ return false;
+ }
+
+ if((data_fd = socket(PF_UNIX, SOCK_DGRAM, 0)) < 0) {
+ logger(LOG_ERR, "Could not open data %s: %s", device_info, strerror(errno));
+ running = false;
+ return false;
+ }
+
+ setsockopt(data_fd, SOL_SOCKET, SO_REUSEADDR, &one, sizeof one);
+
+ if(fcntl(data_fd, F_SETFL, O_NONBLOCK) < 0) {
+ logger(LOG_ERR, "System call `%s' failed: %s", "fcntl", strerror(errno));
+ running = false;
+ return false;
+ }
+
+ name.zero = 0;
+ name.pid = getpid();
+ gettimeofday(&tv, NULL);
+ name.usecs = tv.tv_usec;
+ data_sun.sun_family = AF_UNIX;
+ memcpy(&data_sun.sun_path, &name, sizeof name);
+
+ if(bind(data_fd, (struct sockaddr *)&data_sun, sizeof data_sun) < 0) {
+ logger(LOG_ERR, "Could not bind data %s: %s", device_info, strerror(errno));
+ running = false;
+ return false;
+ }
+
+ if((listen_fd = socket(PF_UNIX, SOCK_STREAM, 0)) < 0) {
+ logger(LOG_ERR, "Could not open %s: %s", device_info,
+ strerror(errno));
+ return false;
+ }
+
+ setsockopt(listen_fd, SOL_SOCKET, SO_REUSEADDR, &one, sizeof one);
+
+ if(fcntl(listen_fd, F_SETFL, O_NONBLOCK) < 0) {
+ logger(LOG_ERR, "System call `%s' failed: %s", "fcntl", strerror(errno));
+ return false;
+ }
+
+ listen_sun.sun_family = AF_UNIX;
+ strncpy(listen_sun.sun_path, device, sizeof listen_sun.sun_path);
+ if(bind(listen_fd, (struct sockaddr *)&listen_sun, sizeof listen_sun) < 0) {
+ logger(LOG_ERR, "Could not bind %s to %s: %s", device_info, device, strerror(errno));
+ return false;
+ }
+
+ if(listen(listen_fd, 1) < 0) {
+ logger(LOG_ERR, "Could not listen on %s %s: %s", device_info, device, strerror(errno));
+ return false;
+ }
+
+ device_fd = listen_fd;
+ state = 0;
+
+ logger(LOG_INFO, "%s is a %s", device, device_info);
+
+ if(routing_mode == RMODE_ROUTER)
+ overwrite_mac = true;
+
+ return true;
+}
+
+void close_device(void) {
+ if(listen_fd >= 0)
+ close(listen_fd);
+
+ if(request_fd >= 0)
+ close(request_fd);
+
+ if(data_fd >= 0)
+ close(data_fd);
+
+ if(write_fd >= 0)
+ close(write_fd);
+
+ unlink(device);
+
+ free(device);
+ if(iface) free(iface);
+}
+
+static bool read_packet(vpn_packet_t *packet) {
+ int lenin;
+
+ switch(state) {
+ case 0: {
+ struct sockaddr sa;
+ socklen_t salen = sizeof sa;
+
+ request_fd = accept(listen_fd, &sa, &salen);
+ if(request_fd < 0) {
+ logger(LOG_ERR, "Could not accept connection to %s %s: %s", device_info, device, strerror(errno));
+ return false;
+ }
+
+ if(fcntl(listen_fd, F_SETFL, O_NONBLOCK) < 0) {
+ logger(LOG_ERR, "System call `%s' failed: %s", "fcntl", strerror(errno));
+ running = false;
+ return false;
+ }
+
+ close(listen_fd);
+ listen_fd = -1;
+ device_fd = request_fd;
+ state = 1;
+
+ return false;
+ }
+
+ case 1: {
+ if((lenin = read(request_fd, &request, sizeof request)) != sizeof request) {
+ logger(LOG_ERR, "Error while reading request from %s %s: %s", device_info,
+ device, strerror(errno));
+ running = false;
+ return false;
+ }
+
+ if(request.magic != 0xfeedface || request.version != 3 || request.type != REQ_NEW_CONTROL) {
+ logger(LOG_ERR, "Unknown magic %x, version %d, request type %d from %s %s",
+ request.magic, request.version, request.type, device_info, device);
+ running = false;
+ return false;
+ }
+
+ if(connect(write_fd, &request.sock, sizeof request.sock) < 0) {
+ logger(LOG_ERR, "Could not bind write %s: %s", device_info, strerror(errno));
+ running = false;
+ return false;
+ }
+
+ write(request_fd, &data_sun, sizeof data_sun);
+ device_fd = data_fd;
+
+ logger(LOG_INFO, "Connection with UML established");
+
+ state = 2;
+ return false;
+ }
+
+ case 2: {
+ if((lenin = read(data_fd, packet->data, MTU)) <= 0) {
+ logger(LOG_ERR, "Error while reading from %s %s: %s", device_info,
+ device, strerror(errno));
+ running = false;
+ return false;
+ }
+
+ packet->len = lenin;
+
+ device_total_in += packet->len;
+
+ ifdebug(TRAFFIC) logger(LOG_DEBUG, "Read packet of %d bytes from %s", packet->len,
+ device_info);
+
+ return true;
+ }
+
+ default:
+ logger(LOG_ERR, "Invalid value for state variable in " __FILE__);
+ abort();
+ }
+}
+
+static bool write_packet(vpn_packet_t *packet) {
+ if(state != 2) {
+ ifdebug(TRAFFIC) logger(LOG_DEBUG, "Dropping packet of %d bytes to %s: not connected to UML yet",
+ packet->len, device_info);
+ return false;
+ }
+
+ ifdebug(TRAFFIC) logger(LOG_DEBUG, "Writing packet of %d bytes to %s",
+ packet->len, device_info);
+
+ if(write(write_fd, packet->data, packet->len) < 0) {
+ if(errno != EINTR && errno != EAGAIN) {
+ logger(LOG_ERR, "Can't write to %s %s: %s", device_info, device, strerror(errno));
+ running = false;
+ }
+
+ return false;
+ }
+
+ device_total_out += packet->len;
+
+ return true;
+}
+
+static 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);
+}
+
+const devops_t uml_devops = {
+ .setup = setup_device,
+ .close = close_device,
+ .read = read_packet,
+ .write = write_packet,
+ .dump_stats = dump_device_stats,
+};
+++ /dev/null
-/*
- device.c -- UML network socket
- Copyright (C) 2002-2005 Ivo Timmermans,
- 2002-2009 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
- the Free Software Foundation; either version 2 of the License, or
- (at your option) any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License along
- with this program; if not, write to the Free Software Foundation, Inc.,
- 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
-*/
-
-#include "system.h"
-
-#include <sys/un.h>
-
-#include "conf.h"
-#include "device.h"
-#include "net.h"
-#include "logger.h"
-#include "utils.h"
-#include "route.h"
-#include "xalloc.h"
-
-int device_fd = -1;
-static int listen_fd = -1;
-static int request_fd = -1;
-static int data_fd = -1;
-static int write_fd = -1;
-static int state = 0;
-char *device = NULL;
-char *iface = NULL;
-static char *device_info;
-
-extern char *identname;
-extern volatile bool running;
-
-static uint64_t device_total_in = 0;
-static uint64_t device_total_out = 0;
-
-enum request_type { REQ_NEW_CONTROL };
-
-static struct request {
- uint32_t magic;
- uint32_t version;
- enum request_type type;
- struct sockaddr_un sock;
-} request;
-
-static struct sockaddr_un data_sun;
-
-bool setup_device(void) {
- struct sockaddr_un listen_sun;
- static const int one = 1;
- struct {
- char zero;
- int pid;
- int usecs;
- } name;
- struct timeval tv;
-
- if(!get_config_string(lookup_config(config_tree, "Device"), &device))
- xasprintf(&device, LOCALSTATEDIR "/run/%s.umlsocket", identname);
-
- get_config_string(lookup_config(config_tree, "Interface"), &iface);
-
- device_info = "UML network socket";
-
- if((write_fd = socket(PF_UNIX, SOCK_DGRAM, 0)) < 0) {
- logger(LOG_ERR, "Could not open write %s: %s", device_info, strerror(errno));
- running = false;
- return false;
- }
-
- setsockopt(write_fd, SOL_SOCKET, SO_REUSEADDR, &one, sizeof one);
-
- if(fcntl(write_fd, F_SETFL, O_NONBLOCK) < 0) {
- logger(LOG_ERR, "System call `%s' failed: %s", "fcntl", strerror(errno));
- running = false;
- return false;
- }
-
- if((data_fd = socket(PF_UNIX, SOCK_DGRAM, 0)) < 0) {
- logger(LOG_ERR, "Could not open data %s: %s", device_info, strerror(errno));
- running = false;
- return false;
- }
-
- setsockopt(data_fd, SOL_SOCKET, SO_REUSEADDR, &one, sizeof one);
-
- if(fcntl(data_fd, F_SETFL, O_NONBLOCK) < 0) {
- logger(LOG_ERR, "System call `%s' failed: %s", "fcntl", strerror(errno));
- running = false;
- return false;
- }
-
- name.zero = 0;
- name.pid = getpid();
- gettimeofday(&tv, NULL);
- name.usecs = tv.tv_usec;
- data_sun.sun_family = AF_UNIX;
- memcpy(&data_sun.sun_path, &name, sizeof name);
-
- if(bind(data_fd, (struct sockaddr *)&data_sun, sizeof data_sun) < 0) {
- logger(LOG_ERR, "Could not bind data %s: %s", device_info, strerror(errno));
- running = false;
- return false;
- }
-
- if((listen_fd = socket(PF_UNIX, SOCK_STREAM, 0)) < 0) {
- logger(LOG_ERR, "Could not open %s: %s", device_info,
- strerror(errno));
- return false;
- }
-
- setsockopt(listen_fd, SOL_SOCKET, SO_REUSEADDR, &one, sizeof one);
-
- if(fcntl(listen_fd, F_SETFL, O_NONBLOCK) < 0) {
- logger(LOG_ERR, "System call `%s' failed: %s", "fcntl", strerror(errno));
- return false;
- }
-
- listen_sun.sun_family = AF_UNIX;
- strncpy(listen_sun.sun_path, device, sizeof listen_sun.sun_path);
- if(bind(listen_fd, (struct sockaddr *)&listen_sun, sizeof listen_sun) < 0) {
- logger(LOG_ERR, "Could not bind %s to %s: %s", device_info, device, strerror(errno));
- return false;
- }
-
- if(listen(listen_fd, 1) < 0) {
- logger(LOG_ERR, "Could not listen on %s %s: %s", device_info, device, strerror(errno));
- return false;
- }
-
- device_fd = listen_fd;
- state = 0;
-
- logger(LOG_INFO, "%s is a %s", device, device_info);
-
- if(routing_mode == RMODE_ROUTER)
- overwrite_mac = true;
-
- return true;
-}
-
-void close_device(void) {
- if(listen_fd >= 0)
- close(listen_fd);
-
- if(request_fd >= 0)
- close(request_fd);
-
- if(data_fd >= 0)
- close(data_fd);
-
- if(write_fd >= 0)
- close(write_fd);
-
- unlink(device);
-
- free(device);
- if(iface) free(iface);
-}
-
-bool read_packet(vpn_packet_t *packet) {
- int lenin;
-
- switch(state) {
- case 0: {
- struct sockaddr sa;
- socklen_t salen = sizeof sa;
-
- request_fd = accept(listen_fd, &sa, &salen);
- if(request_fd < 0) {
- logger(LOG_ERR, "Could not accept connection to %s %s: %s", device_info, device, strerror(errno));
- return false;
- }
-
- if(fcntl(listen_fd, F_SETFL, O_NONBLOCK) < 0) {
- logger(LOG_ERR, "System call `%s' failed: %s", "fcntl", strerror(errno));
- running = false;
- return false;
- }
-
- close(listen_fd);
- listen_fd = -1;
- device_fd = request_fd;
- state = 1;
-
- return false;
- }
-
- case 1: {
- if((lenin = read(request_fd, &request, sizeof request)) != sizeof request) {
- logger(LOG_ERR, "Error while reading request from %s %s: %s", device_info,
- device, strerror(errno));
- running = false;
- return false;
- }
-
- if(request.magic != 0xfeedface || request.version != 3 || request.type != REQ_NEW_CONTROL) {
- logger(LOG_ERR, "Unknown magic %x, version %d, request type %d from %s %s",
- request.magic, request.version, request.type, device_info, device);
- running = false;
- return false;
- }
-
- if(connect(write_fd, &request.sock, sizeof request.sock) < 0) {
- logger(LOG_ERR, "Could not bind write %s: %s", device_info, strerror(errno));
- running = false;
- return false;
- }
-
- write(request_fd, &data_sun, sizeof data_sun);
- device_fd = data_fd;
-
- logger(LOG_INFO, "Connection with UML established");
-
- state = 2;
- return false;
- }
-
- case 2: {
- if((lenin = read(data_fd, packet->data, MTU)) <= 0) {
- logger(LOG_ERR, "Error while reading from %s %s: %s", device_info,
- device, strerror(errno));
- running = false;
- return false;
- }
-
- packet->len = lenin;
-
- device_total_in += packet->len;
-
- ifdebug(TRAFFIC) logger(LOG_DEBUG, "Read packet of %d bytes from %s", packet->len,
- device_info);
-
- return true;
- }
-
- default:
- logger(LOG_ERR, "Invalid value for state variable in " __FILE__);
- abort();
- }
-}
-
-bool write_packet(vpn_packet_t *packet) {
- if(state != 2) {
- ifdebug(TRAFFIC) logger(LOG_DEBUG, "Dropping packet of %d bytes to %s: not connected to UML yet",
- packet->len, device_info);
- return false;
- }
-
- ifdebug(TRAFFIC) logger(LOG_DEBUG, "Writing packet of %d bytes to %s",
- packet->len, device_info);
-
- if(write(write_fd, packet->data, packet->len) < 0) {
- if(errno != EINTR && errno != EAGAIN) {
- logger(LOG_ERR, "Can't write to %s %s: %s", device_info, device, strerror(errno));
- running = false;
- }
-
- return false;
- }
-
- device_total_out += packet->len;
-
- 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);
-}
+++ /dev/null
-/*
- device.c -- VDE plug
- Copyright (C) 2011 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
- the Free Software Foundation; either version 2 of the License, or
- (at your option) any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License along
- with this program; if not, write to the Free Software Foundation, Inc.,
- 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
-*/
-
-#include "system.h"
-
-#include <libvdeplug_dyn.h>
-
-#include "conf.h"
-#include "device.h"
-#include "net.h"
-#include "logger.h"
-#include "utils.h"
-#include "route.h"
-#include "xalloc.h"
-
-int device_fd = -1;
-static struct vdepluglib plug;
-static struct vdeconn *conn = NULL;
-static int port = 0;
-static char *group = NULL;
-char *device = NULL;
-char *iface = NULL;
-static char *device_info;
-
-extern char *identname;
-extern volatile bool running;
-
-static uint64_t device_total_in = 0;
-static uint64_t device_total_out = 0;
-
-bool setup_device(void) {
- libvdeplug_dynopen(plug);
-
- if(!plug.dl_handle) {
- logger(LOG_ERR, "Could not open libvdeplug library!");
- return false;
- }
-
- if(!get_config_string(lookup_config(config_tree, "Device"), &device))
- xasprintf(&device, LOCALSTATEDIR "/run/vde.ctl");
-
- get_config_string(lookup_config(config_tree, "Interface"), &iface);
-
- get_config_int(lookup_config(config_tree, "VDEPort"), &port);
-
- get_config_string(lookup_config(config_tree, "VDEGroup"), &group);
-
- device_info = "VDE socket";
-
- struct vde_open_args args = {
- .port = port,
- .group = group,
- .mode = 0700,
- };
-
- conn = plug.vde_open(device, identname, &args);
- if(!conn) {
- logger(LOG_ERR, "Could not open VDE socket %s", device);
- return false;
- }
-
- device_fd = plug.vde_datafd(conn);
-
- logger(LOG_INFO, "%s is a %s", device, device_info);
-
- if(routing_mode == RMODE_ROUTER)
- overwrite_mac = true;
-
- return true;
-}
-
-void close_device(void) {
- if(conn)
- plug.vde_close(conn);
-
- if(plug.dl_handle)
- libvdeplug_dynclose(plug);
-
- free(device);
-
- free(iface);
-}
-
-bool read_packet(vpn_packet_t *packet) {
- int lenin = plug.vde_recv(conn, packet->data, MTU, 0);
- if(lenin <= 0) {
- logger(LOG_ERR, "Error while reading from %s %s: %s", device_info, device, strerror(errno));
- running = false;
- return false;
- }
-
- packet->len = lenin;
- device_total_in += packet->len;
- ifdebug(TRAFFIC) logger(LOG_DEBUG, "Read packet of %d bytes from %s", packet->len, device_info);
-
- return true;
-}
-
-bool write_packet(vpn_packet_t *packet) {
- if(plug.vde_send(conn, packet->data, packet->len, 0) < 0) {
- if(errno != EINTR && errno != EAGAIN) {
- logger(LOG_ERR, "Can't write to %s %s: %s", device_info, device, strerror(errno));
- running = false;
- }
-
- return false;
- }
-
- device_total_out += packet->len;
-
- 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);
-}
--- /dev/null
+/*
+ device.c -- VDE plug
+ Copyright (C) 2011 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
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License along
+ with this program; if not, write to the Free Software Foundation, Inc.,
+ 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+
+#include "system.h"
+
+#include <libvdeplug_dyn.h>
+
+#include "conf.h"
+#include "device.h"
+#include "net.h"
+#include "logger.h"
+#include "utils.h"
+#include "route.h"
+#include "xalloc.h"
+
+static struct vdepluglib plug;
+static struct vdeconn *conn = NULL;
+static int port = 0;
+static char *group = NULL;
+static char *device_info;
+
+extern char *identname;
+extern volatile bool running;
+
+static uint64_t device_total_in = 0;
+static uint64_t device_total_out = 0;
+
+static bool setup_device(void) {
+ libvdeplug_dynopen(plug);
+
+ if(!plug.dl_handle) {
+ logger(LOG_ERR, "Could not open libvdeplug library!");
+ return false;
+ }
+
+ if(!get_config_string(lookup_config(config_tree, "Device"), &device))
+ xasprintf(&device, LOCALSTATEDIR "/run/vde.ctl");
+
+ get_config_string(lookup_config(config_tree, "Interface"), &iface);
+
+ get_config_int(lookup_config(config_tree, "VDEPort"), &port);
+
+ get_config_string(lookup_config(config_tree, "VDEGroup"), &group);
+
+ device_info = "VDE socket";
+
+ struct vde_open_args args = {
+ .port = port,
+ .group = group,
+ .mode = 0700,
+ };
+
+ conn = plug.vde_open(device, identname, &args);
+ if(!conn) {
+ logger(LOG_ERR, "Could not open VDE socket %s", device);
+ return false;
+ }
+
+ device_fd = plug.vde_datafd(conn);
+
+ logger(LOG_INFO, "%s is a %s", device, device_info);
+
+ if(routing_mode == RMODE_ROUTER)
+ overwrite_mac = true;
+
+ return true;
+}
+
+static void close_device(void) {
+ if(conn)
+ plug.vde_close(conn);
+
+ if(plug.dl_handle)
+ libvdeplug_dynclose(plug);
+
+ free(device);
+
+ free(iface);
+}
+
+static bool read_packet(vpn_packet_t *packet) {
+ int lenin = plug.vde_recv(conn, packet->data, MTU, 0);
+ if(lenin <= 0) {
+ logger(LOG_ERR, "Error while reading from %s %s: %s", device_info, device, strerror(errno));
+ running = false;
+ return false;
+ }
+
+ packet->len = lenin;
+ device_total_in += packet->len;
+ ifdebug(TRAFFIC) logger(LOG_DEBUG, "Read packet of %d bytes from %s", packet->len, device_info);
+
+ return true;
+}
+
+static bool write_packet(vpn_packet_t *packet) {
+ if(plug.vde_send(conn, packet->data, packet->len, 0) < 0) {
+ if(errno != EINTR && errno != EAGAIN) {
+ logger(LOG_ERR, "Can't write to %s %s: %s", device_info, device, strerror(errno));
+ running = false;
+ }
+
+ return false;
+ }
+
+ device_total_out += packet->len;
+
+ return true;
+}
+
+static 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);
+}
+
+const devops_t vde_devops = {
+ .setup = setup_device,
+ .close = close_device,
+ .read = read_packet,
+ .write = write_packet,
+ .dump_stats = dump_device_stats,
+};
projects / oweals / tinc.git / commitdiff