tinc
11 years agoUse read_host_config() where appropriate.
Guus Sliepen [Sat, 11 May 2013 12:05:28 +0000 (14:05 +0200)]
Use read_host_config() where appropriate.

11 years agoFix check for presence of ECDSA public key for outgoing connections.
Guus Sliepen [Sat, 11 May 2013 12:04:39 +0000 (14:04 +0200)]
Fix check for presence of ECDSA public key for outgoing connections.

At this point, c->config_tree may or may not be NULL, but this does not tell us whether it is an
outgoing connection or not. For incoming connections, we do not know the peer's name yet,
so we always have to claim ECDSA support. For outgoing connections, we always need to check
whether we have the peer's ECDSA public key, so that if we don't, we correctly tell the peer that
we want to upgrade.

11 years agoEnable the SPTPS protocol by default.
Guus Sliepen [Fri, 10 May 2013 19:11:45 +0000 (21:11 +0200)]
Enable the SPTPS protocol by default.

11 years agoAdd a few more checks and warnings in the crypto functions.
Guus Sliepen [Fri, 10 May 2013 18:55:52 +0000 (20:55 +0200)]
Add a few more checks and warnings in the crypto functions.

11 years agoFix warnings for functions marked __attribute((warn_unused_result)).
Guus Sliepen [Fri, 10 May 2013 18:30:47 +0000 (20:30 +0200)]
Fix warnings for functions marked __attribute((warn_unused_result)).

11 years agoAdd __attribute__((warn_unused_result)) to crypto functions.
Guus Sliepen [Fri, 10 May 2013 18:23:01 +0000 (20:23 +0200)]
Add __attribute__((warn_unused_result)) to crypto functions.

11 years agoAdd more __attribute__((malloc)) where appropriate.
Guus Sliepen [Fri, 10 May 2013 18:15:27 +0000 (20:15 +0200)]
Add more __attribute__((malloc)) where appropriate.

11 years agoAdd generic crypto headers.
Guus Sliepen [Wed, 1 May 2013 15:45:38 +0000 (17:45 +0200)]
Add generic crypto headers.

They should have been included in commit 9b9230a.

11 years agoRename xmalloc_and_zero() to xzalloc().
Guus Sliepen [Wed, 1 May 2013 15:31:33 +0000 (17:31 +0200)]
Rename xmalloc_and_zero() to xzalloc().

The former name is more or less only used by tinc, the latter is used by other
projects as well, and shorter as well.

11 years agoUse conditional compilation for cryptographic functions.
Guus Sliepen [Wed, 1 May 2013 15:17:22 +0000 (17:17 +0200)]
Use conditional compilation for cryptographic functions.

This gets rid of the rest of the symbolic links. However, as a consequence, the
crypto header files have now moved to src/, and can no longer contain
library-specific declarations. Therefore, cipher_t, digest_t, ecdh_t, ecdsa_t
and rsa_t are now all opaque types, and only pointers to those types can be
used.

11 years agoUse conditional compilation for device.c.
Guus Sliepen [Wed, 1 May 2013 10:20:06 +0000 (12:20 +0200)]
Use conditional compilation for device.c.

This requires the automake option "subdir-objects" to be enabled, and it
becomes more critical to specify the exact path to local header files.

11 years agoModernize the configure script a bit.
Guus Sliepen [Wed, 1 May 2013 09:46:40 +0000 (11:46 +0200)]
Modernize the configure script a bit.

11 years agoDon't try to create tinc.conf when using set or add commands.
Guus Sliepen [Sun, 28 Apr 2013 17:33:04 +0000 (19:33 +0200)]
Don't try to create tinc.conf when using set or add commands.

It is almost certainly an error. If one really wants to create a new tinc.conf
file, one should use the init command.

11 years agoReleasing 1.1pre7. release-1.1pre7
Guus Sliepen [Mon, 22 Apr 2013 13:54:05 +0000 (15:54 +0200)]
Releasing 1.1pre7.

11 years agoDrop packets forwarded via TCP if they are too big (CVE-2013-1428).
Guus Sliepen [Fri, 12 Apr 2013 15:15:05 +0000 (17:15 +0200)]
Drop packets forwarded via TCP if they are too big (CVE-2013-1428).

Normally all requests sent via the meta connections are checked so that they
cannot be larger than the input buffer. However, when packets are forwarded via
meta connections, they are copied into a packet buffer without checking whether
it fits into it. Since the packet buffer is allocated on the stack, this in
effect allows an authenticated remote node to cause a stack overflow.

This issue was found by Martin Schobert.

11 years agoFix completion of add/del/get/set commands.
Guus Sliepen [Tue, 12 Mar 2013 10:28:40 +0000 (11:28 +0100)]
Fix completion of add/del/get/set commands.

11 years agoDescribe the SPTPS protocol in the manual.
Guus Sliepen [Tue, 12 Mar 2013 09:49:45 +0000 (10:49 +0100)]
Describe the SPTPS protocol in the manual.

Also mention that Cipher, Digest and MACLength have no influence on the SPTPS protocol,
since that uses a fixed ciphersuite.

11 years agoRemove references to the config keyword.
Guus Sliepen [Fri, 8 Mar 2013 15:26:21 +0000 (16:26 +0100)]
Remove references to the config keyword.

11 years agoRename tincctl to tinc.
Guus Sliepen [Fri, 8 Mar 2013 15:22:56 +0000 (16:22 +0100)]
Rename tincctl to tinc.

11 years agoInclude README.android in the tarballs.
Guus Sliepen [Fri, 8 Mar 2013 13:12:48 +0000 (14:12 +0100)]
Include README.android in the tarballs.

11 years agoAvoid calling time(NULL).
Guus Sliepen [Fri, 8 Mar 2013 13:11:15 +0000 (14:11 +0100)]
Avoid calling time(NULL).

In most cases we can use the cached time.

11 years agoAllow changing configuration with tincctl without the "config" keyword.
Guus Sliepen [Fri, 8 Mar 2013 10:40:40 +0000 (11:40 +0100)]
Allow changing configuration with tincctl without the "config" keyword.

This saves typing some characters, and forces one to be more explicit about the
desired command (get, set).

11 years agoBetter default output file for generated public keys.
Guus Sliepen [Fri, 8 Mar 2013 10:24:37 +0000 (11:24 +0100)]
Better default output file for generated public keys.

11 years agoFlush output buffers in the tap reader thread on Windows.
Guus Sliepen [Fri, 1 Mar 2013 16:15:26 +0000 (17:15 +0100)]
Flush output buffers in the tap reader thread on Windows.

This is basically a port of commit 50fcfea1 to 1.1.

11 years agoUse UDP when using sptps_test in datagram mode.
Guus Sliepen [Fri, 22 Feb 2013 14:37:48 +0000 (15:37 +0100)]
Use UDP when using sptps_test in datagram mode.

11 years agoReleasing 1.1pre6. release-1.1pre6
Guus Sliepen [Wed, 20 Feb 2013 14:35:19 +0000 (15:35 +0100)]
Releasing 1.1pre6.

11 years agoFix compiler warnings on some BSD variants.
Guus Sliepen [Wed, 20 Feb 2013 14:35:08 +0000 (15:35 +0100)]
Fix compiler warnings on some BSD variants.

11 years agoFix compiler warnings on Windows.
Guus Sliepen [Wed, 20 Feb 2013 13:39:24 +0000 (14:39 +0100)]
Fix compiler warnings on Windows.

11 years agoFix a tiny memory leak.
Guus Sliepen [Wed, 20 Feb 2013 12:59:50 +0000 (13:59 +0100)]
Fix a tiny memory leak.

Found by cppcheck.

11 years agoDon't expect a response from tincd after sending REQ_STOP.
Guus Sliepen [Fri, 8 Feb 2013 15:44:50 +0000 (16:44 +0100)]
Don't expect a response from tincd after sending REQ_STOP.

11 years agoLet the GUI use UNIX sockets if available.
Guus Sliepen [Thu, 7 Feb 2013 14:27:16 +0000 (15:27 +0100)]
Let the GUI use UNIX sockets if available.

11 years agoDerive UNIX socket filename from PID filename.
Guus Sliepen [Thu, 7 Feb 2013 14:26:56 +0000 (15:26 +0100)]
Derive UNIX socket filename from PID filename.

11 years agoDon't send proxy requests for incoming connections.
Guus Sliepen [Thu, 7 Feb 2013 13:22:28 +0000 (14:22 +0100)]
Don't send proxy requests for incoming connections.

11 years agoFix segmentation fault when trying to connect via a SOCKS5 proxy.
Guus Sliepen [Wed, 6 Feb 2013 14:24:02 +0000 (15:24 +0100)]
Fix segmentation fault when trying to connect via a SOCKS5 proxy.

11 years agoCheck for writability when waiting for a socket to finish connecting.
Guus Sliepen [Wed, 6 Feb 2013 14:12:53 +0000 (15:12 +0100)]
Check for writability when waiting for a socket to finish connecting.

We were checking only for readability, which is not a problem for normal
connections, since the server side of a connection will always send an ID
request. But when using a proxy, the proxy server doesn't send anything before
the client, so tinc would not see that its connection to the proxy had already
been established.

11 years agoFix tincd terminating immediately on Windows.
Guus Sliepen [Wed, 6 Feb 2013 10:30:35 +0000 (11:30 +0100)]
Fix tincd terminating immediately on Windows.

11 years agoRemove direct inclusion of OpenSSL headers in net_packet.c and tincd.c.
Guus Sliepen [Thu, 31 Jan 2013 15:12:56 +0000 (16:12 +0100)]
Remove direct inclusion of OpenSSL headers in net_packet.c and tincd.c.

11 years agoDetect increases in PMTU.
Guus Sliepen [Thu, 31 Jan 2013 14:58:33 +0000 (15:58 +0100)]
Detect increases in PMTU.

Tinc never restarts PMTU discovery unless a node becomes unreachable. However,
it can be that the PMTU was very low during the initial discovery, but has
increased later. To detect this, tinc now tries to send an extra packet every
PingInterval, with a size slightly higher than the currently known PMTU. If
this packet is succesfully received back, we partially restart PMTU discovery
to find out the new maximum.

Conflicts:
src/net_packet.c

11 years agoGet microsecond time resolution on Windows.
Guus Sliepen [Mon, 21 Jan 2013 15:12:18 +0000 (16:12 +0100)]
Get microsecond time resolution on Windows.

11 years agoFix a typo.
Guus Sliepen [Mon, 21 Jan 2013 12:59:52 +0000 (13:59 +0100)]
Fix a typo.

11 years agoFix datagram SPTPS.
Guus Sliepen [Mon, 21 Jan 2013 12:47:46 +0000 (13:47 +0100)]
Fix datagram SPTPS.

Commit dd07c9fc1f37bed8d1f67ffe7b203f61e7914edf broke the reception of datagram
SPTPS packets, by undoing the conversion of the sequence number to host byte
order before comparison. This caused error messages like "Packet is 16777215
seqs in the future, dropped (1)".

11 years agoReleasing 1.1pre5. release-1.1pre5
Guus Sliepen [Sun, 20 Jan 2013 20:03:22 +0000 (21:03 +0100)]
Releasing 1.1pre5.

11 years agoFix tincctl init when /etc/tinc does not yet exist.
Guus Sliepen [Sun, 20 Jan 2013 20:02:58 +0000 (21:02 +0100)]
Fix tincctl init when /etc/tinc does not yet exist.

11 years agoRemove possible definition of timersub(), which is also in dropin.h.
Guus Sliepen [Sun, 20 Jan 2013 19:19:08 +0000 (20:19 +0100)]
Remove possible definition of timersub(), which is also in dropin.h.

11 years agoMake sure PriorityInheritance also works in switch mode.
Guus Sliepen [Sun, 20 Jan 2013 14:16:13 +0000 (15:16 +0100)]
Make sure PriorityInheritance also works in switch mode.

Conflicts:
src/route.c

11 years agoAllow connections via UNIX sockets.
Guus Sliepen [Thu, 17 Jan 2013 17:12:55 +0000 (18:12 +0100)]
Allow connections via UNIX sockets.

This is mainly useful for control connections. The client must still present
the control cookie from the PID file.

11 years agoFix compilation of UML and VDE device support.
Guus Sliepen [Thu, 17 Jan 2013 15:39:41 +0000 (16:39 +0100)]
Fix compilation of UML and VDE device support.

11 years agoMove make_names() and related variables to its own source file.
Guus Sliepen [Thu, 17 Jan 2013 15:39:02 +0000 (16:39 +0100)]
Move make_names() and related variables to its own source file.

11 years agoHandle SIGINT gracefully.
Guus Sliepen [Thu, 17 Jan 2013 13:14:17 +0000 (14:14 +0100)]
Handle SIGINT gracefully.

11 years agoFix the minimum spanning tree algorithm.
Guus Sliepen [Thu, 17 Jan 2013 10:21:18 +0000 (11:21 +0100)]
Fix the minimum spanning tree algorithm.

Tinc uses Kruskal's algorithm to calculate a MST. However, this was broken in
commit 6e80da3370249caa1082c23c3ef55f338d1e9e74. Revert back to the working
algorithm from tinc 1.0.

Thanks to Cheng LI for spotting the problem.

11 years agoEstimate RTT, bandwidth and packet loss between nodes.
Guus Sliepen [Wed, 16 Jan 2013 15:31:56 +0000 (16:31 +0100)]
Estimate RTT, bandwidth and packet loss between nodes.

Without adding any extra traffic, we can measure round trip times, estimate the
bandwidth and packet loss between nodes. The RTT and bandwidth can be measured
by timing the MTU probe packets. The RTT is the difference between the time a
burst of MTU probes was sent and when the first reply is received. The
bandwidth can be estimated by multiplying the size of the probe packets by the
time between succesive received probe replies of the same burst. The packet
loss can be estimated for incoming traffic by comparing how many packets have
actually been received to the increase in the sequence numbers.

The estimates are not perfect. Especially bandwidth is difficult to measure,
the only accurate way is to continuously send as much data as possible, but
that is obviously not desirable. The packet loss rate is also almost always
a few percent when sending a lot of data over the VPN via TCP, since TCP
*needs* packet loss to work properly.

11 years agoCount the number of correctly received UDP packets.
Guus Sliepen [Tue, 15 Jan 2013 12:33:16 +0000 (13:33 +0100)]
Count the number of correctly received UDP packets.

Keep track of the number of correct, non-replayed UDP packets that have been
received, regardless of their content. This can be compared to the sequence
number to determine the real packet loss.

11 years agoAdd the tincctl exchange and exchange-all commands.
Guus Sliepen [Tue, 15 Jan 2013 12:31:51 +0000 (13:31 +0100)]
Add the tincctl exchange and exchange-all commands.

These are identical to an export/export-all followed by an import, and make
it simpler to exchange host config files with other nodes.

11 years agoCheck HMAC before sequence number.
Guus Sliepen [Mon, 14 Jan 2013 12:08:35 +0000 (13:08 +0100)]
Check HMAC before sequence number.

11 years agoAlways complain if too many arguments are given for tincctl commands.
Guus Sliepen [Mon, 14 Jan 2013 12:02:39 +0000 (13:02 +0100)]
Always complain if too many arguments are given for tincctl commands.

11 years agoBetter error messages when using -L, -R or -U on platforms that do not support it.
Guus Sliepen [Mon, 14 Jan 2013 12:01:47 +0000 (13:01 +0100)]
Better error messages when using -L, -R or -U on platforms that do not support it.

11 years agoDon't complain about garbage if we skipped importing a host file.
Guus Sliepen [Mon, 14 Jan 2013 11:59:17 +0000 (12:59 +0100)]
Don't complain about garbage if we skipped importing a host file.

11 years agoMention that the -L, -R and -U options are not supported on all platforms.
Guus Sliepen [Mon, 14 Jan 2013 11:58:24 +0000 (12:58 +0100)]
Mention that the -L, -R and -U options are not supported on all platforms.

11 years agoNote that tincctl import is only meant to work with data from tincctl export.
Guus Sliepen [Mon, 14 Jan 2013 11:57:33 +0000 (12:57 +0100)]
Note that tincctl import is only meant to work with data from tincctl export.

11 years agoNote that node Names are case sensitive.
Guus Sliepen [Mon, 14 Jan 2013 11:56:54 +0000 (12:56 +0100)]
Note that node Names are case sensitive.

11 years agoFix a typo.
Guus Sliepen [Mon, 14 Jan 2013 11:56:14 +0000 (12:56 +0100)]
Fix a typo.

11 years agoFix support for tunemu on iOS devices.
Guus Sliepen [Sun, 16 Dec 2012 14:36:06 +0000 (15:36 +0100)]
Fix support for tunemu on iOS devices.

The actual code was fine but the #ifdefs tested for the wrong preprocessor
variable.

Conflicts:
src/bsd/device.c
src/process.c

11 years agoFix infinite loop in timeout handling on Windows.
Guus Sliepen [Fri, 7 Dec 2012 14:49:21 +0000 (15:49 +0100)]
Fix infinite loop in timeout handling on Windows.

11 years agoFix display of cumulative packet counters.
Guus Sliepen [Thu, 6 Dec 2012 15:57:57 +0000 (16:57 +0100)]
Fix display of cumulative packet counters.

11 years agoClarify the description of IndirectData and Mode = router.
Guus Sliepen [Thu, 6 Dec 2012 15:55:28 +0000 (16:55 +0100)]
Clarify the description of IndirectData and Mode = router.

11 years agoReleasing 1.1pre4. release-1.1pre4
Guus Sliepen [Wed, 5 Dec 2012 21:32:10 +0000 (22:32 +0100)]
Releasing 1.1pre4.

11 years agoFix whitespace.
Guus Sliepen [Wed, 5 Dec 2012 20:42:43 +0000 (21:42 +0100)]
Fix whitespace.

11 years agoScale packet counters similar to byte counters.
Guus Sliepen [Wed, 5 Dec 2012 20:40:49 +0000 (21:40 +0100)]
Scale packet counters similar to byte counters.

11 years agoDon't use nested functions.
Guus Sliepen [Wed, 5 Dec 2012 20:33:01 +0000 (21:33 +0100)]
Don't use nested functions.

This allows tinc to be compiled with Clang.

11 years agoFix compiler warnings on OpenBSD.
Guus Sliepen [Wed, 5 Dec 2012 13:42:21 +0000 (14:42 +0100)]
Fix compiler warnings on OpenBSD.

11 years agoRemove GraphDumpFile from the manual and manpages.
Guus Sliepen [Mon, 3 Dec 2012 12:09:40 +0000 (13:09 +0100)]
Remove GraphDumpFile from the manual and manpages.

This option is not supported in tinc 1.1, "tincctl dump graph" can be used
instead.

11 years agoAdd option to dump only a list of reachable nodes.
Guus Sliepen [Mon, 3 Dec 2012 12:08:03 +0000 (13:08 +0100)]
Add option to dump only a list of reachable nodes.

11 years agoMore fixes for Windows.
Guus Sliepen [Mon, 3 Dec 2012 09:41:28 +0000 (10:41 +0100)]
More fixes for Windows.

In particular, Windows does support many of the timer* macros, except timeradd
and timersub.

11 years agoFix compiler error on Windows.
Guus Sliepen [Mon, 3 Dec 2012 08:08:21 +0000 (09:08 +0100)]
Fix compiler error on Windows.

11 years agoFix crash in timeout handling.
Guus Sliepen [Mon, 3 Dec 2012 08:07:23 +0000 (09:07 +0100)]
Fix crash in timeout handling.

11 years agoSet a node's pointers to zero before trying to insert it into a tree.
Guus Sliepen [Mon, 3 Dec 2012 08:02:08 +0000 (09:02 +0100)]
Set a node's pointers to zero before trying to insert it into a tree.

11 years agoFix use of unitialised values in hash tables.
Guus Sliepen [Thu, 29 Nov 2012 13:35:08 +0000 (14:35 +0100)]
Fix use of unitialised values in hash tables.

Not only was Valgrind unhappy about it, it could also result in cache misses.

11 years agoFix check for expired events.
Guus Sliepen [Thu, 29 Nov 2012 13:32:12 +0000 (14:32 +0100)]
Fix check for expired events.

This would trigger a infinite loop if a timeout expired and the next timeout
was not expired yet, but less than 1 second from being expired.

11 years agoAllow multiple timeouts to expire at the exact same time.
Guus Sliepen [Thu, 29 Nov 2012 11:37:04 +0000 (12:37 +0100)]
Allow multiple timeouts to expire at the exact same time.

11 years agoDrop libevent and use our own event handling again.
Guus Sliepen [Thu, 29 Nov 2012 11:28:23 +0000 (12:28 +0100)]
Drop libevent and use our own event handling again.

There are several reasons for this:

- MacOS/X doesn't support polling the tap device using kqueue, requiring a
  workaround to fall back to select().
- On Windows only sockets are properly handled, therefore tinc uses a second
  thread that does a blocking ReadFile() on the TAP-Win32/64 device. However,
  this does not mix well with libevent.
- Libevent, event just the core, is quite large, and although it is easy to get
  and install on many platforms, it can be a burden.
- Libev is more lightweight and seems technically superior, but it doesn't
  abstract away all the platform differences (for example, async events are not
  supported on Windows).

12 years agoEnsure MTU probe replies are sent back the same way they came in.
Guus Sliepen [Mon, 19 Nov 2012 13:20:50 +0000 (14:20 +0100)]
Ensure MTU probe replies are sent back the same way they came in.

Also sprinkle some comments over mtu_probe_h().

12 years agoImprove UDP address selection.
Guus Sliepen [Mon, 19 Nov 2012 12:50:17 +0000 (13:50 +0100)]
Improve UDP address selection.

We don't need to search the whole edge tree, we can use the node's own edge
tree since each edge has a pointer to its reverse. Also, we do need to make
sure we try the reflexive address often.

12 years agoTry all known addresses of node during PMTU discovery, now also for SPTPS.
Guus Sliepen [Sat, 17 Nov 2012 21:48:06 +0000 (22:48 +0100)]
Try all known addresses of node during PMTU discovery, now also for SPTPS.

12 years agoChoose a suitable socket when updating a node's UDP address.
Guus Sliepen [Sat, 17 Nov 2012 21:14:52 +0000 (22:14 +0100)]
Choose a suitable socket when updating a node's UDP address.

12 years agoAlso don't use poll() on MacOS/X.
Guus Sliepen [Thu, 15 Nov 2012 10:24:18 +0000 (11:24 +0100)]
Also don't use poll() on MacOS/X.

12 years agoDisable support for kqueue on MacOS/X.
Guus Sliepen [Thu, 15 Nov 2012 10:13:40 +0000 (11:13 +0100)]
Disable support for kqueue on MacOS/X.

Apparently MacOS/X doesn't support kqueue events on character devices.

12 years agoRemove text saying you must have one of PrivateKey or PrivateKeyFile in tinc.conf.
Guus Sliepen [Wed, 14 Nov 2012 09:44:35 +0000 (10:44 +0100)]
Remove text saying you must have one of PrivateKey or PrivateKeyFile in tinc.conf.

12 years agoSend broadcast packets using a random socket, and properly support IPv6.
Guus Sliepen [Tue, 13 Nov 2012 14:05:41 +0000 (15:05 +0100)]
Send broadcast packets using a random socket, and properly support IPv6.

Before it would always use the first socket, and always send an IPv4 broadcast packet. That
works fine in a lot of situations, but it is better to try all sockets, and to send IPv6 packets
on IPv6 sockets. This is especially important for users that are on IPv6-only networks or that
have multiple physical network interfaces, although in the latter case it probably requires
them to use the ListenAddress variable to create a separate socket for each interface.

12 years agoDon't take the address of a variable whose scope is about to disappear.
Guus Sliepen [Tue, 13 Nov 2012 14:01:43 +0000 (15:01 +0100)]
Don't take the address of a variable whose scope is about to disappear.

12 years agoFix configure script help text for --enable options.
Guus Sliepen [Sun, 11 Nov 2012 18:01:28 +0000 (19:01 +0100)]
Fix configure script help text for --enable options.

12 years agoFix index entry for section about readline library.
Guus Sliepen [Sun, 11 Nov 2012 18:01:02 +0000 (19:01 +0100)]
Fix index entry for section about readline library.

12 years agoMention in the manual that support for LZO and zlib can be disabled.
Guus Sliepen [Sun, 11 Nov 2012 17:53:23 +0000 (18:53 +0100)]
Mention in the manual that support for LZO and zlib can be disabled.

12 years agoMention libcurses and libreadline in the manual.
Guus Sliepen [Sun, 11 Nov 2012 17:45:40 +0000 (18:45 +0100)]
Mention libcurses and libreadline in the manual.

12 years agoMake sure PMTU discovery works in switch mode with VLAN tags.
Guus Sliepen [Sat, 10 Nov 2012 22:45:22 +0000 (23:45 +0100)]
Make sure PMTU discovery works in switch mode with VLAN tags.

Before, when tinc saw a packet larger than the PMTU with a VLAN tag, it would
not know what to do with it, and would just forward it via TCP. Now, tinc
handles 802.1q packets correctly, as long as there is only one tag.

12 years agoUsing alloca() for a constant sized buffer is very silly.
Guus Sliepen [Sat, 10 Nov 2012 22:13:05 +0000 (23:13 +0100)]
Using alloca() for a constant sized buffer is very silly.

Cppcheck said using alloca() in the 21st century is silly anyway.

12 years agoFix potential buffer overflow reading the PID file.
Guus Sliepen [Sat, 10 Nov 2012 22:09:31 +0000 (23:09 +0100)]
Fix potential buffer overflow reading the PID file.

Found by cppcheck.

12 years agoSlightly randomize all timeouts.
Guus Sliepen [Sun, 21 Oct 2012 15:45:16 +0000 (17:45 +0200)]
Slightly randomize all timeouts.

12 years agoAdd the AutoConnect option.
Guus Sliepen [Sun, 21 Oct 2012 15:35:13 +0000 (17:35 +0200)]
Add the AutoConnect option.

When set to a non-zero value, tinc will try to maintain exactly that number of
meta connections to other nodes.  If there are not enough connections, it will
periodically try to set up an outgoing connection to a random node.  If there
are too many connections, it will periodically try to remove an outgoing
connection.

12 years agoKeep track of the number of nodes in a tree.
Guus Sliepen [Sun, 21 Oct 2012 15:34:53 +0000 (17:34 +0200)]
Keep track of the number of nodes in a tree.

12 years agoFix warnings from groff.
Guus Sliepen [Wed, 17 Oct 2012 11:51:02 +0000 (13:51 +0200)]
Fix warnings from groff.