tinc
3 years agoAssign more suitable types and fix narrowing conversion warns.
Kirill Isakov [Mon, 2 Aug 2021 09:55:05 +0000 (15:55 +0600)]
Assign more suitable types and fix narrowing conversion warns.

3 years agoGitHub CI: check project for warnings with clang/gcc.
Kirill Isakov [Mon, 2 Aug 2021 07:30:16 +0000 (13:30 +0600)]
GitHub CI: check project for warnings with clang/gcc.

3 years agoCI (GitHub & sourcehut): add clang-tidy checks.
Kirill Isakov [Sat, 31 Jul 2021 16:47:26 +0000 (22:47 +0600)]
CI (GitHub & sourcehut): add clang-tidy checks.

3 years agoUn-ignore .clang-tidy and enable conversion warnings.
Kirill Isakov [Fri, 30 Jul 2021 18:41:47 +0000 (00:41 +0600)]
Un-ignore .clang-tidy and enable conversion warnings.

... except for cryptographic functions, best leave that to the experts
that have written them. They produce a lot of warnings, so place a
couple of dummy .clang-tidy files there to ignore everything.

3 years agoSupport running tests on NetBSD 8.2.
Kirill Isakov [Fri, 30 Jul 2021 10:46:00 +0000 (16:46 +0600)]
Support running tests on NetBSD 8.2.

3 years agoRemove unused argument from tunemu_write.
Kirill Isakov [Fri, 30 Jul 2021 05:53:37 +0000 (11:53 +0600)]
Remove unused argument from tunemu_write.

3 years agoRemove unused function rsa_active.
Kirill Isakov [Thu, 29 Jul 2021 17:36:43 +0000 (23:36 +0600)]
Remove unused function rsa_active.

3 years agoRemove unused types.
Kirill Isakov [Thu, 29 Jul 2021 17:28:16 +0000 (23:28 +0600)]
Remove unused types.

3 years agoRemove unused declarations.
Kirill Isakov [Thu, 29 Jul 2021 17:26:09 +0000 (23:26 +0600)]
Remove unused declarations.

3 years agoRemove unused struct fields.
Kirill Isakov [Thu, 29 Jul 2021 17:18:32 +0000 (23:18 +0600)]
Remove unused struct fields.

3 years agoRemove unused global variables.
Kirill Isakov [Thu, 29 Jul 2021 17:14:12 +0000 (23:14 +0600)]
Remove unused global variables.

3 years agoRemove unused '#include's.
Kirill Isakov [Thu, 29 Jul 2021 17:02:09 +0000 (23:02 +0600)]
Remove unused '#include's.

3 years agoAdd tests for the fsck command.
Kirill Isakov [Thu, 29 Jul 2021 14:45:42 +0000 (20:45 +0600)]
Add tests for the fsck command.

Also, allow running tests as non-root and elevate as necessary. This
requires passwordless sudo and the CI envvar set to any non-empty value.

3 years agoCleanup and improve `tinc fsck`.
Kirill Isakov [Sun, 25 Jul 2021 07:23:27 +0000 (13:23 +0600)]
Cleanup and improve `tinc fsck`.

- implement TODOs
- fix an invalid warning:
WARNING: public and private RSA keys do not match
- use the same configuration reading & parsing logic as in tincd
- read keys from all supported variables
- auto fix a few more broken key configurations
- fix a couple of rare memory leaks
- add warnings for host variables in server config and vice versa
- check duplicates for all configuration variables (not the first 50)
- check_conffile had a stack-buffer-underflow with going before the start of the line

3 years agoAllow using key & configuration parser from tincd in tinc.
Kirill Isakov [Tue, 27 Jul 2021 16:01:25 +0000 (22:01 +0600)]
Allow using key & configuration parser from tincd in tinc.

3 years agoGitHub CI: run most tests as a non-privileged user.
Kirill Isakov [Mon, 26 Jul 2021 08:52:42 +0000 (14:52 +0600)]
GitHub CI: run most tests as a non-privileged user.

We don't really care about the throwaway container running in a throwaway
VM, but it's still better to run tests that do not require elevated
privileges as a normal user, at least to be sure that the ability to do
this is working.

Also, some tests (like the new command-fsck.test) can perform more checks
with a restricted user account.

3 years agoAdd timeouts to CI jobs.
Guus Sliepen [Wed, 28 Jul 2021 10:09:37 +0000 (12:09 +0200)]
Add timeouts to CI jobs.

3 years agoReally avoid trying to send an ANS_KEY request to unreachable nodes.
Guus Sliepen [Tue, 27 Jul 2021 12:57:18 +0000 (14:57 +0200)]
Really avoid trying to send an ANS_KEY request to unreachable nodes.

Commit ed070d754d1b5500b0ec3615ae342178cfd42efb only printed a warning,
but was missing a return statement.

3 years agoUse inet_pton() to parse Subnets.
Guus Sliepen [Tue, 27 Jul 2021 10:21:07 +0000 (12:21 +0200)]
Use inet_pton() to parse Subnets.

Nowadays all operating systems tinc runs on should support IPv6, so we
can rely on inet_pton() and inet_ntop() to convert IPv4 and IPv6
addresses. Use this instead of our own parsing code.

3 years agoFix ASAN warning.
Guus Sliepen [Mon, 26 Jul 2021 14:03:44 +0000 (16:03 +0200)]
Fix ASAN warning.

The commit fixing the stack overflow for malformed Subnets could compare
against a NULL pointer, which works fine in practice but is undefined
behavior.

3 years agoFix `tinc get Subnet` failing.
Guus Sliepen [Mon, 26 Jul 2021 13:46:48 +0000 (15:46 +0200)]
Fix `tinc get Subnet` failing.

3 years agoLet the CLI prevent adding incorrect Subnets.
Guus Sliepen [Mon, 26 Jul 2021 13:06:06 +0000 (15:06 +0200)]
Let the CLI prevent adding incorrect Subnets.

We did a sanitiy check when trying to add a Subnet, but we only printed
an error message, we still added the incorrect Subnet. This change
ensures we abort with a non-zero exit code.

3 years agoAvoid a stack overflow when presented with a malformed IPv6 Subnet.
Guus Sliepen [Mon, 26 Jul 2021 13:01:12 +0000 (15:01 +0200)]
Avoid a stack overflow when presented with a malformed IPv6 Subnet.

Found by Kirill Isakov using AFL and AddressSanitizer.

3 years agoEnsure we delete removed BroadcastSubnets when reloading configuration.
Guus Sliepen [Sun, 25 Jul 2021 17:09:47 +0000 (19:09 +0200)]
Ensure we delete removed BroadcastSubnets when reloading configuration.

3 years agoGitHub CI: fail sanitizer job if any logs were created.
Kirill Isakov [Sun, 25 Jul 2021 14:55:00 +0000 (20:55 +0600)]
GitHub CI: fail sanitizer job if any logs were created.

3 years agoFix more memory leaks found by ASAN.
Kirill Isakov [Sun, 25 Jul 2021 11:15:24 +0000 (17:15 +0600)]
Fix more memory leaks found by ASAN.

3 years agoFix use-after-free in final log message on tincd exit.
Kirill Isakov [Sat, 24 Jul 2021 06:15:59 +0000 (12:15 +0600)]
Fix use-after-free in final log message on tincd exit.

Steps to reproduce:

0. build tincd with -fsanitize=address
1. start tincd:
./src/tincd -c . -D
2. capture log output in one tinc client
./src/tinc -c . log
3. this is optional, but seems to flush the bug more often: open another
   tinc client and issue the purge/retry commands:
    ./src/tinc -c .
tinc> purge
tinc> retry
4. stop tincd (using Ctrl+C or the stop command)

Repeat until it fails with a bunch of error messages as below.

------------

==1715850==ERROR: AddressSanitizer: heap-use-after-free on address 0x60300001d950 at pc 0x55a3fdba1fa5 bp 0x7fffbd250470 sp 0x7fffbd250468
READ of size 8 at 0x60300001d950 thread T0
    0 0x55a3fdba1fa4 in real_logger tinc/src/logger.c:101:7
    1 0x55a3fdba188b in logger tinc/src/logger.c:140:2
    2 0x55a3fdc90c22 in main tinc/src/tincd.c:625:2
    3 0x7f826a3eab24 in __libc_start_main (/usr/lib/libc.so.6+0x27b24)
    4 0x55a3fda9087d in _start (tinc/src/tincd+0xd487d)

0x60300001d950 is located 0 bytes inside of 32-byte region [0x60300001d950,0x60300001d970)
freed by thread T0 here:
    0 0x55a3fdb377c9 in free (tinc/src/tincd+0x17b7c9)
    1 0x55a3fdb9e1b4 in list_free tinc/src/list.c:36:2
    2 0x55a3fdba0ed3 in list_delete_list tinc/src/list.c:192:2
    3 0x55a3fdb8385f in exit_connections tinc/src/connection.c:47:2
    4 0x55a3fdbf0427 in close_network_connections tinc/src/net_setup.c:1386:2
    5 0x55a3fdc90c0d in main tinc/src/tincd.c:623:2
    6 0x7f826a3eab24 in __libc_start_main (/usr/lib/libc.so.6+0x27b24)

previously allocated by thread T0 here:
    0 0x55a3fdb37c91 in calloc (tinc/src/tincd+0x17bc91)
    1 0x55a3fdb9e157 in xzalloc tinc/src/./xalloc.h:37:12
    2 0x55a3fdb9e065 in list_alloc tinc/src/list.c:29:17
    3 0x55a3fdb82a43 in init_connections tinc/src/connection.c:40:20
    4 0x55a3fdbea58c in setup_network tinc/src/net_setup.c:1304:2
    5 0x55a3fdc90535 in main tinc/src/tincd.c:573:6
    6 0x7f826a3eab24 in __libc_start_main (/usr/lib/libc.so.6+0x27b24)

3 years agoMore strict failure code checks in integration tests.
Kirill Isakov [Fri, 23 Jul 2021 17:14:18 +0000 (23:14 +0600)]
More strict failure code checks in integration tests.

3 years agoFix all UBSAN warnings triggered by tests.
Kirill Isakov [Fri, 23 Jul 2021 16:37:49 +0000 (22:37 +0600)]
Fix all UBSAN warnings triggered by tests.

3 years agoGitHub CI: enable AddressSanitizer.
Kirill Isakov [Fri, 23 Jul 2021 12:46:24 +0000 (18:46 +0600)]
GitHub CI: enable AddressSanitizer.

3 years agoAdd tests to cover some of the fixed leaks.
Kirill Isakov [Fri, 23 Jul 2021 12:41:51 +0000 (18:41 +0600)]
Add tests to cover some of the fixed leaks.

3 years agoFix memory leaks triggered by integration tests.
Kirill Isakov [Fri, 23 Jul 2021 12:11:27 +0000 (18:11 +0600)]
Fix memory leaks triggered by integration tests.

Found by AddressSanitizer and Valgrind.

3 years agoFix a few memory leaks at exit time.
Guus Sliepen [Wed, 21 Jul 2021 10:35:09 +0000 (12:35 +0200)]
Fix a few memory leaks at exit time.

Found by Valgrind.

3 years agoAvoid unhelpful warnings about UDP buffer sizes.
Guus Sliepen [Wed, 21 Jul 2021 10:15:59 +0000 (12:15 +0200)]
Avoid unhelpful warnings about UDP buffer sizes.

Don't log a warning if we never explicitly configured the
SO_RCVBUF/SO_SNDBUF sizes, and don't warn if the system allocates a
larger buffer than the one requested, as at least on Linux, it will
always double the requested size unless you hit the maximum. With this
change, we only warn when we explicitly request a buffer size and the
system allocated a smaller one.

3 years agoDon't call OPENSSL_cleanup().
Guus Sliepen [Wed, 21 Jul 2021 09:54:34 +0000 (11:54 +0200)]
Don't call OPENSSL_cleanup().

Some versions of LibreSSL don't have this function, even if they support
the rest of the OpenSSL 1.1 API. It also doesn't seem to affect the
output of Valgrind, so it looks like it's not necessary at all.

3 years agoCall ENGINE_load_builtin_engines().
Guus Sliepen [Tue, 20 Jul 2021 22:04:08 +0000 (00:04 +0200)]
Call ENGINE_load_builtin_engines().

As suggested by Rosen Penev, use ENGINE_load_builtin_engines() to ensure
the AFALG engines get loaded as well. We apparently also don't need to
call OPENSSL_init_crypto() ourself.

3 years agoCI: Fix installation of OpenSSL on CentOS and AlmaLinux.
Guus Sliepen [Tue, 20 Jul 2021 22:01:06 +0000 (00:01 +0200)]
CI: Fix installation of OpenSSL on CentOS and AlmaLinux.

3 years agoCI: Install and use OpenSSL 1.1 on CentOS 7.
Guus Sliepen [Tue, 20 Jul 2021 21:55:35 +0000 (23:55 +0200)]
CI: Install and use OpenSSL 1.1 on CentOS 7.

3 years agoInstall OpenSSL 1.1 in the CentOS 7 test environment.
Guus Sliepen [Tue, 20 Jul 2021 20:55:56 +0000 (22:55 +0200)]
Install OpenSSL 1.1 in the CentOS 7 test environment.

3 years agoMake tinc --batch --force join enable the tinc-up script.
Guus Sliepen [Tue, 20 Jul 2021 20:23:52 +0000 (22:23 +0200)]
Make tinc --batch --force join enable the tinc-up script.

The expected behavior of --batch --force is that all parameters in the
invitation are accepted, whether unsafe or not. Unsafe variables were
already accepted with --force in commit 061362d2f, this commit ensures
the generated tinc-up script is enabled as well.

Fixes #196 on GitHub.

3 years agoRequire OpenSSL 1.1.0 or later.
Guus Sliepen [Tue, 20 Jul 2021 20:10:56 +0000 (22:10 +0200)]
Require OpenSSL 1.1.0 or later.

This gets rid of some backwards compatibility code, and avoids calling
deprecated OpenSSL functions.

Fixes #244 on GitHub.

3 years agoAvoid trying to send an ANS_KEY request to unreachable nodes.
Guus Sliepen [Tue, 20 Jul 2021 19:14:23 +0000 (21:14 +0200)]
Avoid trying to send an ANS_KEY request to unreachable nodes.

We could have a REQ_KEY coming from a node that is not reachable; either
because DEL_EDGEs have overtaken the REQ_KEY, or perhaps if TunnelServer
is used and some nodes have a different view of reachability.

This might fix GitHub issue #247.

3 years agoSlightly better RNG seed for tincctl.
Guus Sliepen [Tue, 20 Jul 2021 18:31:49 +0000 (20:31 +0200)]
Slightly better RNG seed for tincctl.

This prevents the Port from being the same when initializing multiple
instances of tinc in a short timespan.

3 years agoAdd compression.test
Kirill Isakov [Tue, 20 Jul 2021 12:00:49 +0000 (18:00 +0600)]
Add compression.test

3 years agoAdd cleanup hook for integration tests
Kirill Isakov [Tue, 20 Jul 2021 12:00:05 +0000 (18:00 +0600)]
Add cleanup hook for integration tests

3 years agoList supported features in tinc/tincd --version
Kirill Isakov [Tue, 20 Jul 2021 08:49:46 +0000 (14:49 +0600)]
List supported features in tinc/tincd --version

3 years agoLZ4: try system library first, fallback to builtin
Kirill Isakov [Tue, 20 Jul 2021 07:29:31 +0000 (13:29 +0600)]
LZ4: try system library first, fallback to builtin

3 years agoAdd LZ4 compression support
Darik Horn [Tue, 20 Jul 2021 04:29:39 +0000 (10:29 +0600)]
Add LZ4 compression support

3 years agoVendor LZ4 source
Kirill Isakov [Sat, 17 Jul 2021 16:50:10 +0000 (22:50 +0600)]
Vendor LZ4 source

3 years ago.gitignore temporary files (configure~, etc)
Kirill Isakov [Tue, 20 Jul 2021 07:23:54 +0000 (13:23 +0600)]
.gitignore temporary files (configure~, etc)

3 years agosr.ht CI: add liblz4
Kirill Isakov [Tue, 20 Jul 2021 15:21:13 +0000 (21:21 +0600)]
sr.ht CI: add liblz4

Needed for testing LZ4 compression support when using the system
library.

3 years agoSome cleanups in GitHub Actions CI
Kirill Isakov [Mon, 19 Jul 2021 19:03:06 +0000 (01:03 +0600)]
Some cleanups in GitHub Actions CI

  - run tests on more Linux distributions
  - add test runs with clang sanitizers (TSAN / UBSAN for now)
  - check code formatting only once
  - check test scripts formatting (shfmt)
  - static analysis for test scripts (shellcheck)
  - save more test logs and other debug info
  - add missing pieces to Ubuntu packages
  - test .debs on clean machine before publishing
  - git clone full history for changelog generation
  - support old versions of git on Linux
  - rename some steps

3 years agotest/splice.c: reformat with astyle
Kirill Isakov [Sat, 3 Jul 2021 15:22:39 +0000 (21:22 +0600)]
test/splice.c: reformat with astyle

3 years agoCheck that UNIX socket filenames are not too long.
Guus Sliepen [Tue, 20 Jul 2021 13:57:37 +0000 (15:57 +0200)]
Check that UNIX socket filenames are not too long.

UNIX socket filenames must fit in a struct sockaddr_un, and typically this
only has about 100 bytes of storage. This is perfectly fine for normal use
of tinc, but this caused failures when running make distcheck, which ends
up creating a rather deep directory structure. With this commit, at least
a proper error message is printed instead of silently truncating the
filename.

3 years agoFix running the test suite in out-of-tree builds.
Guus Sliepen [Tue, 20 Jul 2021 12:15:41 +0000 (14:15 +0200)]
Fix running the test suite in out-of-tree builds.

3 years agoRewrite the test suite for better compat and stability
Kirill Isakov [Mon, 19 Jul 2021 08:32:13 +0000 (14:32 +0600)]
Rewrite the test suite for better compat and stability

Keeps all of the previous checks, but uses tinc scripts
instead of sleep(1) delays.

Improves and/or adds compatibility with:
  - Windows (Msys2);
  - FreeBSD;
  - NetBSD;
  - OpenBSD.

3 years agoAllow running sptps_test on Windows
Kirill Isakov [Sat, 17 Jul 2021 12:17:11 +0000 (18:17 +0600)]
Allow running sptps_test on Windows

On Windows, you're not supposed to call select() on anything except
proper BSD sockets, so we can't reuse the same select() loop that's been
working fine on every other operating system.

This is a hack which reads stdin in a separate thread and pushes data to
the main through a TCP socket, which can then be used with select() instead
of reading stdin directly.

3 years agoBail out of logging early.
Mathew Heard [Tue, 29 Jun 2021 00:24:00 +0000 (10:24 +1000)]
Bail out of logging early.

Low hanging fruit, 2% of perf trace.

3 years agoci: run for all branches
Mathew Heard [Mon, 12 Jul 2021 01:39:31 +0000 (11:39 +1000)]
ci: run for all branches

(cherry picked from commit 5666f0d99e3698bf4b50d243151cb1a445bb81ea)

3 years agosrc/getopt.h: add missing header guard
Kirill Isakov [Mon, 12 Jul 2021 10:48:58 +0000 (16:48 +0600)]
src/getopt.h: add missing header guard

(cherry picked from commit c97370e5714389ef44cd5682c0916fcc8daddeff)

3 years agoFix overrun in prf() if hmac size not divisible into key size
Mathew Heard [Mon, 12 Jul 2021 02:53:45 +0000 (12:53 +1000)]
Fix overrun in prf() if hmac size not divisible into key size

Not seen only due to chacha having a 64byte key and a 64byte HMAC (SHA512) being used

3 years agoCI: add support for FreeBSD/NetBSD/OpenBSD through sourcehut
Kirill Isakov [Sat, 10 Jul 2021 15:11:27 +0000 (21:11 +0600)]
CI: add support for FreeBSD/NetBSD/OpenBSD through sourcehut

3 years agosrc/tincctl.c: inverse exit code for 'tinc stop' on Windows
Kirill Isakov [Sat, 10 Jul 2021 11:13:34 +0000 (17:13 +0600)]
src/tincctl.c: inverse exit code for 'tinc stop' on Windows

On Windows, the `tinc stop` command returned 1 on success and 0 on
failure, which is the opposite of what happens everywhere else.

3 years agoinvitation.c: fix socket error checking on Windows
Kirill Isakov [Mon, 5 Jul 2021 04:37:04 +0000 (10:37 +0600)]
invitation.c: fix socket error checking on Windows

3 years agoUpdate THANKS.
Guus Sliepen [Fri, 2 Jul 2021 14:55:52 +0000 (16:55 +0200)]
Update THANKS.

3 years agoAdd a SECURITY.md file describing our security policy.
Guus Sliepen [Fri, 2 Jul 2021 14:55:43 +0000 (16:55 +0200)]
Add a SECURITY.md file describing our security policy.

3 years agoRun tests on pushes and pull requests
Kirill Isakov [Fri, 2 Jul 2021 13:38:07 +0000 (19:38 +0600)]
Run tests on pushes and pull requests

3 years agotest/legacy-protocol.test: fix intermittent "Cannot read greeting from control socket"
Kirill Isakov [Thu, 1 Jul 2021 18:10:02 +0000 (00:10 +0600)]
test/legacy-protocol.test: fix intermittent "Cannot read greeting from control socket"

3 years agoAllow running tests on macOS
Kirill Isakov [Thu, 1 Jul 2021 13:35:08 +0000 (19:35 +0600)]
Allow running tests on macOS

3 years agoWarn if system capped requested socket buffer sizes.
Niklas Hambüchen [Sun, 12 Apr 2020 18:21:02 +0000 (20:21 +0200)]
Warn if system capped requested socket buffer sizes.

3 years agoFail early in send_udp_probe_packet().
Mathew Heard [Tue, 29 Jun 2021 05:03:50 +0000 (15:03 +1000)]
Fail early in send_udp_probe_packet().

3 years agoCheck interval bounds for UDP probe size.
Mathew Heard [Tue, 29 Jun 2021 04:55:14 +0000 (14:55 +1000)]
Check interval bounds for UDP probe size.

3 years agoEnsure send_udp_probe_packet len is valid for the buffer size.
Mathew Heard [Tue, 29 Jun 2021 04:48:04 +0000 (14:48 +1000)]
Ensure send_udp_probe_packet len is valid for the buffer size.

3 years agoperform cheap checks first
Mathew Heard [Tue, 29 Jun 2021 00:49:01 +0000 (10:49 +1000)]
perform cheap checks first

minor optimization

3 years agoReleasing 1.1pre18. release-1.1pre18
Guus Sliepen [Sun, 27 Jun 2021 17:29:16 +0000 (19:29 +0200)]
Releasing 1.1pre18.

3 years agoUpdate THANKS.
Guus Sliepen [Sun, 27 Jun 2021 17:16:53 +0000 (19:16 +0200)]
Update THANKS.

3 years agoUpdate copyright notices.
Guus Sliepen [Sun, 27 Jun 2021 15:23:30 +0000 (17:23 +0200)]
Update copyright notices.

3 years agoFix usage of @code and @samp commands.
Guus Sliepen [Sun, 27 Jun 2021 15:12:06 +0000 (17:12 +0200)]
Fix usage of @code and @samp commands.

3 years agoFix spelling errors.
Guus Sliepen [Sun, 27 Jun 2021 14:52:03 +0000 (16:52 +0200)]
Fix spelling errors.

Found by codespell.

3 years agotincctl: restrict umask argument for FORTIFY
pacien [Tue, 8 Sep 2020 23:24:28 +0000 (01:24 +0200)]
tincctl: restrict umask argument for FORTIFY

`umask(mode)` calls that do not verify `(mode & 0777) == mode` are
rejected when the libc FORTIFY checks are enabled [1].

The unrestricted `~perms` was indeed making this assertion fail.

[1]: https://android.googlesource.com/platform/bionic/+/refs/tags/android-11.0.0_r3/libc/bionic/fortify.cpp#404

3 years agoDon't try to forward packets to a node we don't have a key for.
Guus Sliepen [Sun, 27 Jun 2021 14:19:37 +0000 (16:19 +0200)]
Don't try to forward packets to a node we don't have a key for.

If we got a packet that's meant to be relayed, don't call
sptps_send_data() if we don't have a valid key yet for the desination
node, but do keep trying to get a working connection to that node. Based
on a patch from thorkill.

3 years agoFix for the event loop on Windows.
Guus Sliepen [Sun, 27 Jun 2021 14:06:58 +0000 (16:06 +0200)]
Fix for the event loop on Windows.

The code did not take into account that the return value of
WSAWaitForMultipleEvents() is the offset into the event array plus
WSA_WAIT_EVENT_0.

Based on a patch from arsh0r.

3 years agoLog errors when add_edge() fails to insert into the edge trees.
Guus Sliepen [Sun, 27 Jun 2021 14:01:52 +0000 (16:01 +0200)]
Log errors when add_edge() fails to insert into the edge trees.

This should never happen, but if it does we want to have it at least
logged instead of causing issues later on.

Based on a patch from arsh0r.

3 years agoFix the check for sys/un.h.
Guus Sliepen [Sun, 27 Jun 2021 13:36:44 +0000 (15:36 +0200)]
Fix the check for sys/un.h.

3 years agoDon't compile support for Device=fd on platforms that do not support UNIX sockets.
Guus Sliepen [Sun, 27 Jun 2021 13:31:49 +0000 (15:31 +0200)]
Don't compile support for Device=fd on platforms that do not support UNIX sockets.

3 years agoFix compiler warnings.
Guus Sliepen [Sun, 27 Jun 2021 13:02:13 +0000 (15:02 +0200)]
Fix compiler warnings.

3 years agoFix warnings from autoconf.
Guus Sliepen [Sun, 27 Jun 2021 12:55:23 +0000 (14:55 +0200)]
Fix warnings from autoconf.

Bump the minimum required version of autoconf to 2.69, and avoid using
macros it warns are obsolete.

3 years agoFix warnings from GCC about VLAs.
Guus Sliepen [Tue, 22 Jun 2021 20:36:13 +0000 (22:36 +0200)]
Fix warnings from GCC about VLAs.

3 years agoReformat the code using astyle.
Guus Sliepen [Tue, 22 Jun 2021 20:35:50 +0000 (22:35 +0200)]
Reformat the code using astyle.

3 years agoAdd Subnet checking to tinc cli
Ilia Pavlikhin [Tue, 24 Sep 2019 15:34:12 +0000 (15:34 +0000)]
Add Subnet checking to tinc cli

3 years ago Fix infinity loop when network address and
Ilia Pavlikhin [Tue, 24 Sep 2019 11:26:52 +0000 (11:26 +0000)]
 Fix infinity loop when network address and
 prefix do not match

3 years agoUse auto-clone device /dev/{tun,tap} as default on FreeBSD/DragonFly
Aaron LI [Sun, 5 Apr 2020 11:07:42 +0000 (19:07 +0800)]
Use auto-clone device /dev/{tun,tap} as default on FreeBSD/DragonFly

DragonFly BSD doesn't pre-create `/dev/tunX` or `/dev/tapX` devices
anymore since 2019-Jul-31 [0].  So it's better to use the auto-clone
device `/dev/tun` or `/dev/tap` as the default TUN or TAP device.
The TUN/TAP device has the same behavior on DragonFly BSD and FreeBSD.

See also pull request: https://github.com/DragonFlyBSD/DeltaPorts/pull/925

[0] https://github.com/DragonFlyBSD/DragonFlyBSD/commit/f1e9a4fff5aaac2be3a291dbfea94f94755991b8

3 years agofix compilation without deprecated OpenSSL APIs
Rosen Penev [Fri, 2 Apr 2021 21:36:39 +0000 (14:36 -0700)]
fix compilation without deprecated OpenSSL APIs

This was fixed for 1.0 but missing for 1.1.

Signed-off-by: Rosen Penev <rosenp@gmail.com>
4 years agoFix segfault when failing to read random numbers.
Guus Sliepen [Mon, 21 Sep 2020 21:22:18 +0000 (23:22 +0200)]
Fix segfault when failing to read random numbers.

Because the result of read() was incorrectly stored in an unsigned
variable, an error reading from the random number generator device would
result in an infinite loop that would start writing out of bounds and
eventually corrupt the stack.

4 years agofix macos build
leptonyu [Sun, 15 Mar 2020 01:39:42 +0000 (01:39 +0000)]
fix macos build

4 years agoInclude stddef.h if available.
Guus Sliepen [Mon, 20 Jan 2020 20:12:17 +0000 (21:12 +0100)]
Include stddef.h if available.

This is necessary to compile fd_device.c.

4 years agofd_device: allow fd to be passed through a unix socket
pacien [Mon, 20 Jan 2020 12:58:13 +0000 (13:58 +0100)]
fd_device: allow fd to be passed through a unix socket

New restrictions on the Android OS forbid direct leaking of file descriptors.
This patch allows the tinc daemon to have an fd and the associated
permissions transferred to it through a Unix domain socket.

5 years agoTry harder to connect to unreachable nodes.
Guus Sliepen [Wed, 17 Jul 2019 23:49:48 +0000 (01:49 +0200)]
Try harder to connect to unreachable nodes.

5 years agoDon't keep an address cache in an outgoing_t.
Guus Sliepen [Wed, 17 Jul 2019 23:33:38 +0000 (01:33 +0200)]
Don't keep an address cache in an outgoing_t.

Address caches are associated with nodes, so just use the address cache
in the node_t struct. Also ensure we always have opened an address cache in
setup_outgoing_connection().

Thanks to admincheg for finding this issue.

5 years agoDisable AutoConnect in the ns-ping test.
Guus Sliepen [Wed, 17 Jul 2019 22:31:54 +0000 (00:31 +0200)]
Disable AutoConnect in the ns-ping test.