Commit graph

2093 commits

Author SHA1 Message Date
Michael Tokarev
42a8158b1d add (errnum) in front of windows error messages
On localized, non-English versions of windows, it is
common to have two active charsets -- for console applications
and for GUI applications, together with localized error messages
returned by windows.  But two charsets are rarely compatible,
so sending the same byte sequence to console and to windows
event log makes one or another to be unreadable.  So at least
include the error number, this way it will be possible to
lookup the actual error test using external ways.

Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
2012-05-08 16:56:34 +02:00
Guus Sliepen
58007d7efa Always pass request strings to other functions as const char *. 2012-05-08 16:44:15 +02:00
Sven-Haegar Koch
291a59b5b7 free_connection_partially(): also reset remote protocol version infos
The used remote protocol can change between two reconnects, aka if
the remote side has enabled/disabled for example their ExperimentalProtocols
setting.
2012-05-08 16:20:21 +02:00
Sven-Haegar Koch
32e5c5bb7c Silence SPTPS log messages, reduce them from DEBUG_ALWAYS to DEBUG_META. 2012-05-08 16:19:20 +02:00
Sven-Haegar Koch
c78bb14303 terminate_connection(): delete non-outgoing (aka incoming) connections. 2012-05-08 16:19:04 +02:00
Sven-Haegar Koch
8b9e5af0d9 Label control connections for log output as "<control>", not "<unknown>". 2012-05-08 16:18:28 +02:00
Sven-Haegar Koch
d3f4cf59ca free_connection_partially(): Avoid possible use-after-free for c->hischallenge 2012-05-08 16:18:18 +02:00
Sven-Haegar Koch
7a6ca7a993 terminate_connection(): only kill c->node->connection if it is pointing
to the same connection
2012-05-08 16:17:55 +02:00
Sven-Haegar Koch
a96c4f016c terminate_connection(): Avoid use-after-free and double-free for
already freed edge structure.
2012-05-08 16:16:59 +02:00
Guus Sliepen
5c0dd104f9 Document new proxy types. 2012-04-19 15:56:08 +02:00
Guus Sliepen
5ae19cb0bb Add support for proxying through an external command.
Proxy type "exec" can be used to have an external script or binary set
up an outgoing connection. Standard input and output will be used to
exchange data with the external command. The variables REMOTEADDRESS and
REMOTEPORT are set to the intended destination address and port.
2012-04-19 15:18:31 +02:00
Guus Sliepen
fb5588856f Add support for SOCKS 5 proxies.
This only covers outgoing TCP connections, and supports only
username/password authentication or no authentication.
2012-04-19 14:10:54 +02:00
Guus Sliepen
b58d95eb29 Add basic support for SOCKS 4 and HTTP CONNECT proxies.
When the Proxy option is used, outgoing connections will be made via the
specified proxy. There is no support for authentication methods or for having
the proxy forward incoming connections, and there is no attempt to proxy UDP.
2012-04-18 23:19:40 +02:00
Guus Sliepen
84531fb6e6 Allow broadcast packets to be sent directly instead of via the MST.
When the "Broadcast = direct" option is used, broadcast packets are not sent
and forwarded via the Minimum Spanning Tree to all nodes, but are sent directly
to all nodes that can be reached in one hop.

One use for this is to allow running ad-hoc routing protocols, such as OLSR, on
top of tinc.
2012-04-16 01:57:25 +02:00
Guus Sliepen
9ebb34f907 Update README to reflect that only OpenSSL is currently supported. 2012-04-16 01:16:59 +02:00
Guus Sliepen
a851d8a9f6 Add autoconf checks for OpenSSL's elliptic curve functions. 2012-04-16 01:14:59 +02:00
Sven-Haegar Koch
f8e15dfe8d ecdh & ecdsa: avoid some possible memory leaks in error conditions. 2012-04-16 00:54:50 +02:00
Sven-Haegar Koch
8792b9a9f3 Remove confusing error message for failed reading in ECDSA keys.
Most likeley the error is that there just is no valid key inside the used
host file, and in this case errno just contains a random value from the
last previously failed call.
2012-04-16 00:54:43 +02:00
Sven-Haegar Koch
a5bb6d40fb sptps_stop(): clear pointers after free to avoid double free.
sptps_stop() may get called twice on some failed connection setups.
2012-04-15 01:10:49 +02:00
Guus Sliepen
535a55100b Allow environment variables to be used for Name.
When the Name starts with a $, the rest will be interpreted as the name of an
environment variable containing the real Name. When Name is $HOST, but this
environment variable does not exist, gethostname() will be used to set the
Name. In both cases, illegal characters will be converted to underscores.
2012-03-29 16:45:25 +01:00
Guus Sliepen
1d9dacb1f2 Merge branch 'master' of git://tinc-vpn.org/tinc into 1.1
Conflicts:
	src/logger.c
	src/net_setup.c
2012-03-26 19:06:39 +01:00
Guus Sliepen
89f4574e0b Add support for systemd style socket activation.
If the LISTEN_FDS environment variable is set and tinc is run in the
foreground, tinc will use filedescriptors 3 to 3 + LISTEN_FDS for its listening
TCP sockets. For now, tinc will create matching listening UDP sockets itself.

There is no dependency on systemd or on libsystemd-daemon.
2012-03-26 14:46:09 +01:00
Guus Sliepen
cc6aee7846 Remove newline from log message. 2012-03-26 14:45:20 +01:00
Anthony G. Basile
16e6769fee configure.in: fix AC_ARG_ENABLE and AC_ARG_WITH
The current configure.in file does not correctly make use of these
macros.  The resulting configure file will therefore enable an item
even if --disable-FEATURE is given.  This patch restores the intended
behavior.
2012-03-26 13:25:05 +02:00
Guus Sliepen
86c2990327 Merge branch 'master' of git://tinc-vpn.org/tinc into 1.1
Conflicts:
	NEWS
	README
	configure.in
	src/Makefile.am
	src/conf.c
	src/conf.h
	src/connection.c
	src/net.c
	src/tincd.c
2012-03-25 23:35:31 +01:00
Guus Sliepen
b23681dddb Support :: in IPv6 Subnets. 2012-03-25 22:54:36 +01:00
Guus Sliepen
482c6119a7 Releasing 1.0.18. 2012-03-25 15:32:26 +01:00
Guus Sliepen
64c657b32d Mark DecrementTTL option experimental. 2012-03-25 15:30:58 +01:00
Guus Sliepen
f71ce34180 Fix return type of vde_recv() as well.
In this case it is not really necessary as the conversion to int will already
take care of ensuring the return value is treated as signed.
2012-03-25 15:17:50 +01:00
Guus Sliepen
6225b1884a Document OpenBSD "ifconfig link0" and Linux "ip tuntap" commands. 2012-03-25 14:55:56 +01:00
Guus Sliepen
3998353853 Fix some more compiler warnings. 2012-03-25 14:46:50 +01:00
Guus Sliepen
cfe6558d4b Fix return value type of vde_send().
The libvdeplug_dyn.h header file incorrectly declares the return type of
vde_send() to size_t, while in reality it is ssize_t.
2012-03-25 14:00:21 +01:00
Guus Sliepen
95968c67f9 Fix compiler warnings. 2012-03-25 13:58:14 +01:00
Guus Sliepen
e2d1b0b899 Allow scoped addresses to be used for IPv6 multicast socket. 2012-03-25 13:42:10 +01:00
Guus Sliepen
2512040632 Add #ifdefs in case not all platforms support IPv4 and IPv6 multicast. 2012-03-25 13:40:55 +01:00
Guus Sliepen
b5e3bf1a85 Set default value of DecrementTTL to "no".
Decrementing the TTL causes IPv6 to fail when Mode = switch, and there may be
other unforeseen side-effects.
2012-03-23 13:18:36 +01:00
Guus Sliepen
c373de2e98 Add support for multicast communication with UML/QEMU/KVM.
DeviceType = multicast allows one to specify a multicast address and port with
a Device statement. Tinc will then read/send packets to that multicast group
instead of to a tun/tap device. This allows interaction with UML, QEMU and KVM
instances that are listening on the same group.
2012-03-21 17:00:53 +01:00
Guus Sliepen
a7dbb50c23 Allow a port to be specified in BindToAddress statements.
This can be used to let tinc listen on multiple ports for incoming connections.
2012-03-21 13:20:15 +01:00
Guus Sliepen
80e15d8b96 Always try next Address when an outgoing connection fails to authenticate.
When making outgoing connections, tinc goes through the list of Addresses and
tries all of them until one succeeds. However, before it would consider
establishing a TCP connection a success, even when the authentication failed.
This would be a problem if the first Address would point to a hostname and port
combination that belongs to the wrong tinc node, or perhaps even to a non-tinc
service, causing tinc to endlessly try this Address instead of moving to the
next one.

Problem found by Delf Eldkraft.
2012-03-20 23:49:16 +01:00
Guus Sliepen
d7bf63c63a Make sure the signature also covers the session label. 2012-03-18 21:24:46 +01:00
Guus Sliepen
42a0b61076 Start documenting the SPTPS protocol. 2012-03-18 20:38:48 +01:00
Guus Sliepen
d756bb92ed Don't send an ACK message after the first key exchange in the SPTPS protocol. 2012-03-18 17:46:30 +01:00
Guus Sliepen
c970ecdd75 Test SPTPS messages sent while key renegotation is in progress. 2012-03-18 17:42:43 +01:00
Guus Sliepen
3a4fe104a0 Add datagram mode to the SPTPS protocol.
* Everything is identical except the headers of the records.
* Instead of sending explicit message length and having an implicit sequence
  number, datagram mode has an implicit message length and an explicit sequence
  number.
* The sequence number is used to set the most significant bytes of the counter.
2012-03-18 16:42:02 +01:00
Guus Sliepen
03e06fd43a Allow CTR mode counter to be set to a specific value. 2012-03-18 16:41:13 +01:00
Guus Sliepen
28a1501b9a Releasing 1.0.17. 2012-03-10 13:45:53 +01:00
Guus Sliepen
4712d8f92e Update copyright notices. 2012-03-10 13:23:08 +01:00
Guus Sliepen
5b0f5ad958 Make sure disabling old RSA keys works on Windows.
Seeking in files and rewriting parts of them does not seem to work properly on
Windows. Instead, when old RSA keys are found when generating new ones, the
file containing the old keys is copied to a temporary file where the changes
are made, and that file is renamed back to the original filename. On Windows,
we cannot atomically replace files with a rename(), so we need to move the
original file out of the way first. If anything fails, the new code will warn
that the user has to solve the problem by hand.
2012-03-08 23:23:39 +01:00
Guus Sliepen
2f1c337c54 Add missing ICMP6 message type definitions. 2012-03-08 22:19:20 +01:00
Guus Sliepen
40c2858932 Merge branch 'master' of git://tinc-vpn.org/tinc into 1.1
Conflicts:
	src/net_packet.c
2012-03-08 21:15:08 +01:00