Guus Sliepen [Sat, 25 Jun 2011 19:35:27 +0000 (21:35 +0200)]
Make pid files backwards compatible and add address of listening socket.
The pid is now written first, so that a version 1.0.x tincd can be used to stop
a running version 1.1 tincd. Getsockname() is used to determine the address of
the first listening socket, so that tincctl can connect to the local tincd even
if AddressFamily = ipv6, or if BindToAddress or BindToInterface is used.
Guus Sliepen [Mon, 6 Jun 2011 14:26:11 +0000 (16:26 +0200)]
Improved --logfile option.
Instead of UNIX time, the log messages now start with the time in RFC3339
format, which human-readable and still easy for the computer to parse and sort.
The HUP signal will also cause the log file to be closed and reopened, which is
useful when log rotation is used. If there is an error while opening the log
file, this is logged to stderr.
Guus Sliepen [Fri, 3 Jun 2011 13:50:20 +0000 (15:50 +0200)]
Don't ignore SIGCHLD, system() needs it.
But we do ignore SIGPIPE, and tinc 1.0.x signals that are no longer used
(SIGUSR1 and SIGUSR2), since the default handler of these signals is to
terminate tincd immediately.
Guus Sliepen [Thu, 2 Jun 2011 18:27:16 +0000 (20:27 +0200)]
More stable sorting in tincctl top.
Although we use qsort(), which is not guaranteed to be stable, resorting the
previously sorted array is more stable than recreating and resorting the array
each time.
Guus Sliepen [Thu, 2 Jun 2011 15:45:06 +0000 (17:45 +0200)]
Drop the GNU malloc.c, realloc.c, and xmalloc.c.
We live in the 21st century, and we require C99 semantics, so we do not need to
work around buggy libcs. The xmalloc() and related functions are now static
inline functions.
Guus Sliepen [Thu, 2 Jun 2011 15:14:30 +0000 (17:14 +0200)]
Simplify signal handling.
We don't override any signal handlers anymore except those for SIGPIPE and
SIGCHLD. Fatal signals (SIGSEGV, SIGBUS etc.) will terminate tincd and
optionally dump core. The previous behaviour was to terminate gracefully and
try to restart, but that usually failed and made any core dump useless.
Guus Sliepen [Sun, 29 May 2011 12:41:05 +0000 (14:41 +0200)]
Allow tincctl to connect to something besides localhost.
This would allow tincctl to connect to a remote tincd, or to a local tincd that
isn't listening on localhost, for example if it is using the BindToInterface or
BindToAddress options.
Guus Sliepen [Sun, 22 May 2011 10:56:51 +0000 (12:56 +0200)]
Compact input buffer before trying to read instead of after.
Also log an error when the input buffer contains more than MAXBUFSIZE bytes
already, instead of silently claiming the other side closed the connection.
Guus Sliepen [Sat, 14 May 2011 17:15:04 +0000 (19:15 +0200)]
Add simple buffer management code.
Libevent 2.0's buffer code is not completely backward compatible with 1.4's.
In order to not (mis)use it anymore, we implement it ourselves. The buffers
are automatically expanding when necessary. When consuming data from the
buffer, no memmove()s are performed. Only when adding to the buffer would
write past the end do we shift everything back to the start.
Guus Sliepen [Fri, 13 May 2011 10:37:26 +0000 (12:37 +0200)]
Reorder checks for libraries to allow ./configure LDFLAGS=-static.
OpenSSL depends on libdl and libz. When linking dynamically, libcrypto will
automatically link with the other two libraries. However, when linking
statically, these libraries need to be specified explicitly while linking. By
moving the autoconf checks for libdl and libz before those for libcrypto, we
ensure the latter test will be done with the proper libraries.
Guus Sliepen [Sun, 8 May 2011 10:16:26 +0000 (12:16 +0200)]
Increase threshold for detecting two nodes with the same Name.
In commit 4a21aabada23d1d2c8a10f54dd7248171c4ec82f, code was added to detect
contradicting ADD_EDGE and DEL_EDGE messages being sent, which is an indication
of two nodes with the same Name connected to the same VPN. However, these
contradictory messages can also happen when there is a network partitioning. In
the former case a loop happens which causes many contradictory message, while
in the latter case only a few of those messages will be sent. So, now we
increase the threshold to at least 10 of both ADD_EDGE and DEL_EDGE messages.
Guus Sliepen [Wed, 9 Mar 2011 08:34:56 +0000 (09:34 +0100)]
Do not set indirect flag on edges from nodes with multiple addresses.
Since tinc now handles UDP packets with a different source address and port
than used for TCP connections, the heuristic to treat edges as indirect when
tinc could detect that multiple addresses were used does not make sense
anymore, and can actually reduce performance.
Guus Sliepen [Fri, 18 Feb 2011 22:11:43 +0000 (23:11 +0100)]
Prevent anything from updating our own UDP address.
Because we don't want to keep track of that, and this will cause the node
structure from being relinked into the node tree, which results in myself
pointing to an invalid address.