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Author SHA1 Message Date
Guus Sliepen
4a21aabada Detect and prevent two nodes with the same Name being on the VPN simultaneously. 
In this situation, the two nodes will start fighting over the edges they announced.
When we have to contradict both ADD_EDGE and DEL_EDGE messages, we log a warning,
and with 25% chance per PingTimeout we quit.
 2010-06-04 14:53:52 +02:00
Guus Sliepen
79e46d08a4 Merge branch 'master' into 1.1 
Conflicts:
	NEWS
	README
	configure.in
	src/net.c
	src/net.h
 2010-04-17 12:21:53 +02:00
Guus Sliepen
9f53ab209d Reload Subnets when getting a HUP signal and StrictSubnets is used. 2010-04-11 00:50:42 +02:00
Guus Sliepen
5c5548fc71 Better integration of libevent in build system. 
Since event.h is not part of tinc, we include it in have.h were all other
system header files are included.  We also ensure -levent comes before -lgdi32
when compiling with MinGW, apparently it doesn't work when the order is
reversed.
 2009-11-07 14:35:48 +01:00
Guus Sliepen
35af4051c3 Fix a possible crash when sending the HUP signal. 
When the HUP signal is sent while some outgoing connections have not been made
yet, or are being retried, a NULL pointer could be dereferenced resulting in
tinc crashing. We fix this by more careful handling of outgoing_ts, and by
deleting all connections that have not been fully activated yet at the HUP
signal is received.
 2009-10-20 22:14:47 +02:00
Guus Sliepen
7ea85043ac Merge branch 'master' into 1.1 
Conflicts:
	NEWS
	configure.in
	lib/Makefile.am
	lib/pidfile.c
	lib/pidfile.h
	lib/utils.c
	po/POTFILES.in
	po/nl.po
	src/Makefile.am
	src/bsd/device.c
	src/conf.c
	src/connection.c
	src/cygwin/device.c
	src/edge.c
	src/event.c
	src/graph.c
	src/linux/device.c
	src/meta.c
	src/mingw/device.c
	src/net.c
	src/net_packet.c
	src/net_setup.c
	src/net_socket.c
	src/netutl.c
	src/node.c
	src/process.c
	src/protocol.c
	src/protocol_auth.c
	src/protocol_edge.c
	src/protocol_key.c
	src/protocol_misc.c
	src/protocol_subnet.c
	src/raw_socket/device.c
	src/route.c
	src/solaris/device.c
	src/subnet.c
	src/tincd.c
	src/uml_socket/device.c
 2009-09-29 14:55:29 +02:00
Guus Sliepen
ab7c61b06f Update the address of the Free Software Foundation in all copyright headers. 2009-09-25 00:01:00 +02:00
Guus Sliepen
0e6856b137 Remove Ivo's old email addresses. 2009-09-24 23:42:30 +02:00
Guus Sliepen
c217d214f4 Remove all occurences of $Id$. 2009-09-24 23:39:16 +02:00
Guus Sliepen
2f97bdb46b Add missing #include. 2009-09-16 20:16:54 +02:00
Guus Sliepen
075e6828a7 Merge branch 'master' into 1.1 
Conflicts:
	have.h
	lib/dropin.c
	lib/fake-getaddrinfo.c
	lib/pidfile.c
	src/Makefile.am
	src/bsd/device.c
	src/conf.c
	src/connection.c
	src/connection.h
	src/graph.c
	src/mingw/device.c
	src/net.c
	src/net_setup.c
	src/node.c
	src/protocol_key.c
	src/protocol_misc.c
	src/tincd.c
 2009-09-16 19:55:47 +02:00
Guus Sliepen
b47c17bcde Use a mutex to allow the TAP reader to process packets faster on Windows. 
The TAP-Win32 device is not a socket, and select() under Windows only works
with sockets.  Tinc used a separate thread to read from the TAP-Win32 device,
and passed this via a local socket to the main thread which could then select()
from it. We now use a global mutex, which is only unlocked when the main thread
is waiting for select(), to allow the TAP reader thread to process packets
directly.
 2009-09-15 22:59:01 +02:00
Guus Sliepen
5a132550de Merge branch 'master' into 1.1 
Conflicts:
	doc/tincd.8.in
	lib/pidfile.c
	src/graph.c
	src/net.c
	src/net.h
	src/net_packet.c
	src/net_setup.c
	src/net_socket.c
	src/netutl.c
	src/node.c
	src/node.h
	src/protocol_auth.c
	src/protocol_key.c
	src/tincd.c
 2009-06-05 23:14:13 +02:00
Guus Sliepen
e012e752f4 Fix initialisation of packet decryption context broken by commit 3308d13e7e. 
Instead of a single, global decryption context, each node has its own context.
However, in send_ans_key(), the global context was initialised. This commit
fixes that and removes the global context completely.

Also only set status.validkey after all checks have been evaluated.
 2009-05-24 19:31:31 +02:00
Michael Tokarev
6698f7c390 Rename setup_network_connections() and split out try_outgoing_connections() 
In preparation of chroot/setuid operations, split out call to
try_outgoing_connections() from setup_network_connections()
(which was the last call in setup_network_connections()).
This is because dropping privileges should be done in-between
setup_network_connections() and try_outgoing_connections().

This patch renames setup_network_connections() to setup_network()
and moves call to try_outgoing_connections() into main routine.

No functional changes.
 2009-05-18 14:34:24 +02:00
Guus Sliepen
08aabbf931 Merge branch 'master' into 1.1 
Conflicts:
	NEWS
	README
	doc/tinc.conf.5.in
	doc/tinc.texi
	po/nl.po
	src/conf.c
	src/connection.c
	src/event.c
	src/graph.c
	src/net.c
	src/net_packet.c
	src/net_socket.c
	src/node.c
	src/node.h
	src/openssl/rsagen.h
	src/protocol_auth.c
	src/protocol_key.c
	src/protocol_misc.c
	src/subnet.c
	src/subnet.h
	src/tincd.c
 2009-03-09 19:02:24 +01:00
Guus Sliepen
78fc59e994 Update THANKS and copyright information. 2009-03-05 14:12:36 +01:00
Guus Sliepen
d1910ac198 Remove unused definitions from net.h. 2009-01-20 13:19:31 +01:00
Guus Sliepen
503c32eb0e Use a global list to track outgoing connections. 
Previously an outgoing_t was maintained for each outgoing connection,
but the pointer to it was either stored in a connection_t or in an event_t.
This made it very hard to keep track of and to clean up.

Now a list is created when tinc starts and reads all the ConnectTo variables,
and which is recreated when tinc receives a HUP signal.
 2009-01-20 13:12:41 +01:00
Guus Sliepen
67df7fb7e1 Only send packets via UDP if UDP communication is possible. 
When no session key is known for a node, or when it is doing PMTU discovery but
no MTU probes have returned yet, packets are sent via TCP. Some logic is added
to make sure intermediate nodes continue forwarding via TCP.  The per-node
packet queue is now no longer necessary and has been removed.
 2009-01-03 22:33:55 +01:00
Guus Sliepen
551cd19406 Move RSA key generation into the wrappers. 2008-12-14 12:47:26 +00:00
Scott Lamb
d82fcc88f3 Reload configuration through control socket 
I also kept the SIGHUP handler, which many people will expect to see.
The control socket is better, though - it will tell you if there is a
problem.
 2007-11-07 02:51:24 +00:00
Scott Lamb
f0a57eab4c Retry connections through control socket 2007-11-07 02:50:58 +00:00
Scott Lamb
1065879c8c Purge through the control socket 2007-11-07 02:49:57 +00:00
Guus Sliepen
ddc6a81a85 Remove global variable "now". 2007-05-18 09:34:06 +00:00
Guus Sliepen
7e1117197c Move key regeneration handling to net_setup.c. 2007-05-17 23:57:48 +00:00
Guus Sliepen
a67ab277c9 Use libevent for retrying outgoing connections. 2007-05-17 22:09:55 +00:00
Guus Sliepen
17c8033029 128 listener sockets is way too much. 2007-05-17 19:52:12 +00:00
Scott Lamb
38c25d62c2 Convert to libevent. 
This is a quick initial conversion that doesn't yet show much advantage:
- We roll our own timeouts.
- We roll our own signal handling.
- We build up the meta connection fd events on each loop rather than
  on state changes.
 2007-02-27 01:57:01 +00:00
Guus Sliepen
de78d79db8 Update copyright notices, remove Ivo's email address. 2006-04-26 13:52:58 +00:00
Guus Sliepen
228e7a5c8f Apply patch from Scott Lamb adding an output buffer for the TCP sockets. 
This helps coalescing multiple send_meta() commands into one TCP packet.
Also limit the size of the output buffer before dropping PACKETs.
 2006-01-19 17:13:18 +00:00
Guus Sliepen
df3220a154 Update copyright notices. 2005-05-04 18:09:30 +00:00
Guus Sliepen
4fe7aff4d1 Add BlockingTCP option, useful when using TCPOnly on slow or congested links. 2004-11-10 21:56:31 +00:00
Guus Sliepen
9e44f116bf Increase MTU by 4 bytes to allow VLAN tagged Ethernet frames in hub and switch mode. 2004-04-15 14:09:56 +00:00
Guus Sliepen
7926a156e5 Update copyrights, links, email addresses and let Subversion update $Id$ keywords. 2004-03-21 14:21:22 +00:00
Guus Sliepen
af86a3226e Revert Martin Kihlgren's patch, it doesn't work the way it should. 2004-03-20 22:23:42 +00:00
Guus Sliepen
56aad1bb48 Applied Martin Kihlgren's IdentityGenerosity patch, 
simplified and renamed to StrictSource.
 2004-03-20 15:28:55 +00:00
Guus Sliepen
6b12bea62f Let tinc figure out the exact MTU of the link. 2003-12-20 19:47:53 +00:00
Guus Sliepen
98edfb14fc Some platforms don't know sa_family_t or define it other than uint16_t. 2003-10-08 12:09:37 +00:00
Guus Sliepen
ad39db95fe Make sure type of AF_UNKNOWN is sa_family_t. 2003-10-06 16:49:42 +00:00
Guus Sliepen
72bdc05cb7 Allow tinc to handle unknown type addresses from other tinc daemons. 2003-08-22 11:18:42 +00:00
Guus Sliepen
f08fc359a0 Install tinc as a service under Windows (MinGW). Remove cleanup_and_exit(), 
either exit() directly on errors or let main_loop() shutdown gracefully.
 2003-08-02 20:50:38 +00:00
Guus Sliepen
721e4caee0 Native Windows support. 2003-07-29 22:59:01 +00:00
Guus Sliepen
83263b7446 Sprinkle around a lot of const and some C99 initialisers. 2003-07-24 12:08:16 +00:00
Guus Sliepen
eefa28059a Use bools and enums where appropriate. 2003-07-22 20:55:21 +00:00
Guus Sliepen
b0a4f7b555 Even more missing definitions. 2003-07-18 12:16:24 +00:00
Guus Sliepen
e449d94cae Big header file cleanup: everything that has to do with standard system 
libraries is moved to system.h.
 2003-07-17 15:06:27 +00:00
Guus Sliepen
5db596c684 Simplify logging, update copyrights and some minor cleanups. 2003-07-12 17:41:48 +00:00
Guus Sliepen
2a7f11c0e9 More missing IPv6 definitions and autoconf checks to make sure it compiles 
under Solaris 2.6.
 2003-07-11 16:13:00 +00:00
Guus Sliepen
30c0381d71 Provide all missing IPv6 definitions in lib/ipv6.h. 2003-07-07 11:11:33 +00:00
Guus Sliepen
1401faf608 Sprinkling the source with static and attributes. 2003-07-06 23:16:29 +00:00
Guus Sliepen
81f5713ab7 - simplify configure.in 
- drop support for OpenSSL < 0.9.7
- add some missing definitions/includes
 2003-07-06 17:15:25 +00:00
Guus Sliepen
249933350b Small fixes. 2003-05-07 11:21:58 +00:00
Guus Sliepen
c70f52087b - Per-node EVP_CIPHER_CTX to avoid initialisation overhead. 
- LZO compression, thanks to Teemu Kiviniemi.
- Updated dutch translation.
 2003-05-06 21:13:18 +00:00
Guus Sliepen
9792ba2cac - Avoid memory leak caused by OpenSSL 0.9.7a. 
- Disable RSA_blinding_on() because it segfaults.
 2003-03-28 13:41:49 +00:00
Guus Sliepen
8d472a415e port_t isn't used anymore and conflicts with MacOS/X headers. 2002-09-15 12:26:24 +00:00
Guus Sliepen
eaf1208e9d Fix placement of #include "config.h" 2002-09-10 22:13:01 +00:00
Guus Sliepen
f75dcef72a Switch to K&R style indentation. 2002-09-09 21:25:28 +00:00
Guus Sliepen
627f7c22b4 s/sliepen.warande.net/sliepen.eu.org/g 
s/itimmermans@bigfoot.com/ivo@o2w.nl/g
 2002-06-21 10:11:37 +00:00
Guus Sliepen
e47e51e9d1 Use inttypes.h instead of stdint.h. 2002-06-08 13:46:43 +00:00
Guus Sliepen
116ba3b3da Cleanup: 
- Remove checks for specific OS's, instead check for #defines/#includes.
 - Use uint??_t where appropriate.
 - Mask handling functions use void pointers to get rid of silly casts.
 2002-06-08 12:57:10 +00:00
Guus Sliepen
5eba1e1f6f Limit the amount of packets in a queue to 8. 2002-03-27 15:01:37 +00:00
Guus Sliepen
52e7699273 - Added support for jumbograms. 
- Remove tcpaddress from edges, it is not used at all.
- Last bits of code to prevent looping requests.
 2002-03-22 11:43:48 +00:00
Guus Sliepen
305505f5ec Remember sockaddrs of listening sockets, use appropriate one when sending 
UDP packets.
 2002-03-18 22:47:20 +00:00
Guus Sliepen
14979f835d - Global time_t now, so that we don't have to call time() too often. 
- MAC addresses expire after a time configurable by MACExpire (default 600
  seconds)
 2002-03-01 14:09:31 +00:00
Guus Sliepen
f93b1334e0 Create/bind TCP and UDP listening sockets in pairs. 2002-03-01 13:18:54 +00:00
Guus Sliepen
c2b738e7b5 If "PriorityInheritance = yes" is specified in tinc.conf, the value of the 
TOS field of the tunneled packets will be passed on to the UDP packets tinc
sends out.
 2002-03-01 12:26:56 +00:00
Guus Sliepen
50403909b6 Allow multiple listening sockets. 2002-02-26 23:26:41 +00:00
Guus Sliepen
2ac7be0d51 Tweaking IPv6 support. 2002-02-26 22:47:51 +00:00
Guus Sliepen
23fda5688e - Change SA_LEN to SALEN, former one is already defined on some platforms. 
- Use SALEN everywhere appropriate.
 2002-02-20 22:37:38 +00:00
Guus Sliepen
dbc5b5bb5e - Use gai_strerror() where appropriate 
- Clear hints before using them with getaddrinfo()
- Use sa_len on platforms that support them
 2002-02-20 22:15:32 +00:00
Guus Sliepen
c2b9c06062 - Non-blocking connect()s. 
- Socket handling revamped to use sockaddr_t.
- tinc can now tunnel over IPv6.
- Handle all addresses and subnets in network byte order.
  Only convert them when they need to be printed.
- IPv6 subnets bigger than /128 now work.
- Use %s and strerror(errno) instead of %m.
 2002-02-18 16:25:19 +00:00
Guus Sliepen
f0aa9641e8 Merging of the entire pre5 branch. 2002-02-10 21:57:54 +00:00
Ivo Timmermans
fb6dc0b089 Removed definitions of ipv4_t, ipv6_t, port_t 2001-11-16 12:08:38 +00:00
Guus Sliepen
ac066bb057 Make sure everything links. 2001-10-27 13:13:35 +00:00
Guus Sliepen
82e3837109 Big bad commit: 
- Transition to new node/vertex/connection structures
- Use new configuration handling everywhere
- Linux tun/tap device handling cleanup
- Start of IPv6 support in route.c

It compiles, but it won't link.
 2001-10-27 12:13:17 +00:00
Guus Sliepen
acb853205d Updated terminate_connection() so you can choose if DEL_HOSTs should be 
sent or not.
 2001-07-21 15:34:18 +00:00
Guus Sliepen
ba918dce28 Only reset seconds_till_retry when we activate the outgoing connection. 2001-06-08 18:02:10 +00:00
Guus Sliepen
4f9dad0972 - tinc can now act as a switch or a hub too (as opposed to a router only) 
- cleaner initialisation of "UNKNOWN" and "MYSELF" names
 2001-06-05 16:09:55 +00:00
Guus Sliepen
fcf869cd42 TCPonly now works (in a relatively clean way too). 2001-05-25 11:54:28 +00:00
Guus Sliepen
e4f3d93ec6 - s/ip_t/ipv4_t/g 
- Add "salt" to the beginning of UDP packets. Replaces length field which
  is not useful anyway.
 2001-05-07 19:08:46 +00:00
Guus Sliepen
34f9e6cf2d - route.c is now used to determine destination 
- flags are removed, since they were not used at all. Use options instead.
- indirectdata works now, tcponly almost...
- made functions that don't return useful information void
 2001-03-04 13:59:32 +00:00
Guus Sliepen
4fa12eb85d Removed lots of compiler warnings. 2001-02-27 16:37:31 +00:00
Guus Sliepen
447a43d639 - Added indirectdata and tcponly functionality. 2001-01-07 20:19:35 +00:00
Guus Sliepen
d3f889c807 - It's 2001, all copyright notices are updated. 2001-01-07 17:09:07 +00:00
Guus Sliepen
07a08f5539 - Reinstated a queue for outgoing packets. 2001-01-07 15:25:49 +00:00
Guus Sliepen
e1707f7739 - Don't even think about using sscanf with %as anymore 
- Allow keys to be inside the config files or in a seperate file
- Small fixes
 2000-12-22 21:34:24 +00:00
Ivo Timmermans
a0f7af3ed7 New function read_rsa_public_key(); 
In net.c/setup_myself deleted old code to read the public key (which
is now implicitly read in together with the private key).
 2000-11-30 23:18:21 +00:00
Guus Sliepen
408ca91766 - Integrate rbl trees into tinc. 2000-11-20 19:12:17 +00:00
Guus Sliepen
698191fd2f - Prepended config_ to all configuration option names, because it confused 
everything (including myself).
- Use connection oriented UDP sockets for both incoming and outgoing
  packets.
 2000-11-04 22:57:33 +00:00
Guus Sliepen
8fa9bc017d - Removed old encr stuff 2000-10-29 09:19:27 +00:00
Guus Sliepen
e8391bd499 - Moved connlist stuff to the proper header file. 2000-10-29 01:27:23 +00:00
Guus Sliepen
8738c007b1 - Fixed offsets when reading/writing from/to tap device 2000-10-28 21:25:21 +00:00
Guus Sliepen
85adeef212 - The daemon actually runs now (somewhat) 
- Added support for tun/tap driver (autodetect!)
- More sophisticated checkpoint functionality
- Updated dutch translation
 2000-10-15 00:59:37 +00:00
Guus Sliepen
e9635ae38e - Second fixing-things pass: it even links now. 
- Lots of FIXME comments added to the source code.
 2000-10-14 17:04:16 +00:00
Guus Sliepen
183a8edd22 - Fixing-things pass: every source file compiles into an object file now, 
but linking tincd does not work yet (must link with openssl libs and
  define some missing functions).
 2000-10-11 22:01:02 +00:00
Guus Sliepen
950fb8e916 Big and bad commit of my current tree... 
- Added seperate file for connection list handling
- Updating everything to use connlist, meta and subnet files
- Removed dependency on libgmp
- Lots of other stuff...
 2000-10-11 10:35:17 +00:00
Guus Sliepen
2228b16159 - Added subnet handling code 
- Other small changes to header files
 2000-10-01 03:21:49 +00:00
Ivo Timmermans
7f3ab38c22 Second round of fixes 2000-09-15 12:58:40 +00:00
Ivo Timmermans
ed397b6ac6 First round of needed fixes after the overhaul 2000-09-14 21:51:21 +00:00