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Author SHA1 Message Date
Guus Sliepen
ffb88ff641 Avoid connecting to another node twice, and check name of outgoing connections. 2001-10-31 20:22:52 +00:00
Guus Sliepen
6d333ad680 Show cfg->variable instead of cfg->value when complaining about wrong type. 2001-10-31 20:07:17 +00:00
Guus Sliepen
54b756f7df Don't forget to read public RSA key when making an outgoing connection. 2001-10-31 20:02:06 +00:00
Guus Sliepen
c0a3f67a5d - Small fixes to graph algorithms 
- More control over tap device, ability to set interface name to something
  other than the netname.
- Export NETNAME, DEVICE and INTERFACE environment variables to scripts.
 2001-10-31 12:50:24 +00:00
Guus Sliepen
2165931c62 More updates to protocol handlers and reimplemented terminate_connection(). 2001-10-30 16:34:32 +00:00
Guus Sliepen
87ad5c97a9 Various fixes, tinc is now somewhat capable of actually working again. 2001-10-30 12:59:12 +00:00
Guus Sliepen
cc9473d8c6 Working version of Kruskal's algorithm. The running time is very bad though. 2001-10-29 13:14:57 +00:00
Guus Sliepen
b6298e2c08 - More changes needed for Kruskal's algorithm 
- Implemented a breadth-first search algorithm as a cheap substitution for a
  single-source shortest path algorithm.
 2001-10-28 22:42:49 +00:00
Guus Sliepen
66067cc9c1 - More s/vertex/edge/g 
- Implementation of Kruskal's minimum spanning tree algorithm.
 2001-10-28 10:16:18 +00:00
Guus Sliepen
94497336ef What was I thinking? s/vertex/edge/g. 2001-10-28 08:41:19 +00:00
Guus Sliepen
b98d9787fd Various small fixes to make tinc runnable again. 2001-10-27 15:19:13 +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
1935c44a1e Support new files (node/vertex/device.[ch]) and OpenBSD. 2001-10-13 13:53:07 +00:00
Guus Sliepen
26e517dd37 Forgot the tun specific stuff. 2001-10-12 15:52:03 +00:00
Guus Sliepen
ad61c20f42 Added OpenBSD tun device handling. Untested though. 2001-10-12 15:49:11 +00:00
Guus Sliepen
0c6321a67f Forgot to remove some old #ifdef stuff. 2001-10-12 15:38:35 +00:00
Guus Sliepen
6014c7e637 Solaris tun device handling cleaned up a bit and added. 2001-10-12 15:33:21 +00:00
Guus Sliepen
623c7ee030 Added FreeBSD tap device handling. 2001-10-12 15:22:59 +00:00
Guus Sliepen
ec34f25228 - Split tap device stuff out of net.[ch] 
- Each OS gets it's own device.c to get rid of evil #ifdefs.
- Cleaned up Linux ethertap and tun/tap handling.
 2001-10-12 15:16:03 +00:00
Guus Sliepen
0bbace18e9 More updates to new node/vertex/connection combo. 2001-10-10 20:35:10 +00:00
Guus Sliepen
ea607d2d92 Revamp configuration handling: 
- Store everything in AVL trees (fast lookup)
- No need for hazahaza anymore
- Parse values when needed
- This simplifies a lot of config variable lookups.
 2001-10-10 20:34:27 +00:00
Guus Sliepen
5904806dc8 Removed everything from connection.c that has already been moved to node.c and 
vertex.c.
 2001-10-10 09:42:29 +00:00
Guus Sliepen
ec0c16b9b6 Further implementation of doc/CONNECTIVITY. connection.[ch] is now split into a 
node, vertex and connection part.
 2001-10-10 08:49:47 +00:00
Guus Sliepen
f22b941751 Small corrections. 2001-10-09 19:37:10 +00:00
Guus Sliepen
49a2cd806c Started implementing doc/CONNECTIVITY. 2001-10-09 19:30:30 +00:00
Guus Sliepen
fcc3ded75f Fix bug when dropping an old connection in favour of a new one from the 
same host.
 2001-10-08 15:37:14 +00:00
Guus Sliepen
1ef90a87fd - Use ping timeout mechanism to close connections that don't authenticate 
in time.
- Fix potential segmentation fault in check_dead_connections().
 2001-10-08 13:37:30 +00:00
Guus Sliepen
ce9fd32c04 Fix bug where tinc would crash because of a portscan or a connection from a 
tinc daemon with a different version.
 2001-10-08 11:59:08 +00:00
Guus Sliepen
21027b1d57 - Renamed lastbutonehop to prevhop. 
- Added connection_t *via to connection_t, this keeps record of where
  to send UDP packets to.
 2001-10-08 11:47:55 +00:00
Guus Sliepen
18d1233c40 Fill in next- and lastbutonehop for myself. 2001-09-25 13:39:11 +00:00
Guus Sliepen
ec100a58b4 Try next connectto instead of the same over and over. 2001-09-25 13:35:45 +00:00
Guus Sliepen
4d3de3b6a9 Show next- and lastbutonehop when dumping connectionlist to syslog. 2001-09-24 14:16:29 +00:00
Guus Sliepen
24a2c7e51a Not only keep track of nexthop, but also of lastbutonehop. If destination cl 
wants indirectdata, send it to the lastbutonehop instead, unless it too has
requested so, and so on.
 2001-09-24 14:12:00 +00:00
Guus Sliepen
154733927a - Try old TUN/TAP ioctl() request if the one from if_tun.h fails. 
- Be more verbose about the kind of tap device used.
 2001-09-24 13:31:15 +00:00
Ivo Timmermans
950c934e0b Killing tincd with SIGINT causes it to toggle between the current 
debug level and level 5.  Useful to debug a running tincd.
 2001-09-05 18:38:09 +00:00
Guus Sliepen
a54ec980e0 config_t* is a const parameter in get_config_val(). 2001-09-01 12:46:49 +00:00
Guus Sliepen
68e23b1c9e Optional signal number for -k option. 2001-09-01 12:36:53 +00:00
Guus Sliepen
8ed27d40f3 Revised reconnection mechanism, always try out all ConnectTo lines. 2001-09-01 12:36:06 +00:00
Guus Sliepen
ef1facc607 Remove IndirectData support for now, new implementation will be added 
later.
 2001-09-01 12:02:39 +00:00
Guus Sliepen
8b5e421130 Fix signed comparison bug in lookup_subnet_ipv4(). 2001-08-28 20:52:39 +00:00
Guus Sliepen
e1184ad15d Don't send DEL_HOSTs when !status.meta 2001-08-17 18:14:04 +00:00
Guus Sliepen
30d22474cc Explicitly log which type of tunnel device is used. 2001-07-24 20:14:30 +00:00
Guus Sliepen
7e86cf91e3 The val variable in a config_t is never used as a long. 2001-07-24 20:13:42 +00:00
Guus Sliepen
43923d2b10 Write public key to rsa_key.pub instead of rsa_key.priv (if not host 
configuration file is found).
 2001-07-24 20:04:22 +00:00
Guus Sliepen
44e9d6a287 Don't use %m in fprintf(). 2001-07-24 20:03:40 +00:00
Guus Sliepen
fcbe215d64 Woohoo! tinc now compiles, runs and actually *works* on Solaris! 
Tested on a SparcStation 20MP running Solaris 7. (Thanks, jiggel!)
 2001-07-21 20:21:25 +00:00
Guus Sliepen
533ee1206f Always close all sockets in terminate_connection(). 2001-07-21 15:46:34 +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
12f6b80429 Added purge_tree for connection_t's which are no longer in the connection, 
active or id trees, but which may still be referenced. This tree is flushed
when it is safe, this replaces purge_connection_tree().

Also lots of bugfixes related to the new trees.
 2001-07-20 20:25:10 +00:00
Guus Sliepen
37ed4265fa Remove all unnecessary status.meta and status.active checks. 2001-07-20 13:54:19 +00:00
Guus Sliepen
5e2ded68bf Correctly use the active_tree. 2001-07-19 12:29:40 +00:00
Guus Sliepen
319e0cb48e Split connection list into two lists: 
- one list to handle all incoming/outgoing TCP connections
 - another list to handle all UDP connections

This will prevent race conditions.
 2001-07-15 18:07:31 +00:00
Guus Sliepen
b3074590b1 Correct inclusion of standard if_tun.h header file. 2001-07-15 14:21:12 +00:00
Guus Sliepen
5dc4ade0b9 Don't load table of verbose OpenSSL errormessages. 2001-07-04 08:43:32 +00:00
Guus Sliepen
1e2bdc2b6d - Always use <openssl/include.h> instead of just <include.h> 
- Check if RAND_pseudo_bytes() exists, otherwise just use RAND_bytes()
 2001-07-04 08:41:36 +00:00
Guus Sliepen
6bd93e4c06 Check for all potential duplicate entries in the id tree. 2001-07-01 21:42:13 +00:00
Guus Sliepen
9645cabc8e Fix compiler warning. 2001-07-01 09:21:14 +00:00
Guus Sliepen
6365d0627b Fix printf format bug. 2001-07-01 09:21:01 +00:00
Guus Sliepen
c9591bd1de Fix gcc 3.0 warnings. 2001-06-29 13:09:55 +00:00
Guus Sliepen
402b85c482 Log error if two hosts connect with same IP/port tuple. 2001-06-29 13:09:32 +00:00
Guus Sliepen
5d34503574 Execute tinc-down BEFORE tap device is closed. This is a. more symmetric 
(tinc-up is started after tap device is opened) and b. is needed for
tun/tap device, where the interface does not exist anymore after the
device file is closed.
 2001-06-29 10:30:18 +00:00
Guus Sliepen
9e96840da8 Remove #warnings I used for debugging stuff. 2001-06-21 16:37:47 +00:00
Guus Sliepen
04ec0b82ab - Solaris compile fixes 
- Set mymac to broadcast MAC so that ifconfig hw ether <...> is really not
  needed anymore.
- Forwarding of indirect packets when in switch mode (because the kernel
  will not do it for us then).
 2001-06-21 16:16:32 +00:00
Guus Sliepen
9a0a50cd3c Woops - big bug in send_key_changed fixed. 2001-06-09 10:00:34 +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
96ef7becdd Fixes to make switching work between hosts that have no meta-connection. 2001-06-06 19:12:38 +00:00
Guus Sliepen
ce6c8e6d08 Log and warn about duplicate subnet_add()'s for the same subnet. 2001-06-06 19:11:16 +00:00
Guus Sliepen
9cd9b03923 Add missing? counting of total_socket_in. 2001-06-05 19:45:47 +00:00
Guus Sliepen
7bd7f5b436 You can now put an option "Mode" in tinc.conf, and choose from: 
- Mode = router (default, work like tinc has always worked)
- Mode = switch (work like a switch)
- Mode = hub    (work like a hub, broadcasting everything)
 2001-06-05 19:39:54 +00:00
Guus Sliepen
edd6734faa Fix bug where lookup_subnet_ipv4() could go into an infinite loop. 2001-06-05 18:07:14 +00:00
Guus Sliepen
fa376fbd4e - This oneliner removes the need for ifconfig tap? hw ether fe:fd:0:0:0:0 2001-06-05 16:31:59 +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
428482d86f Added proxy-arp support. No more ifconfig -arp needed. Works like a charm 
under FreeBSD now :).
 2001-06-04 11:14:35 +00:00
Guus Sliepen
0a3c8cefd4 Fix subnet_lookup() for overlapping subnets. Needs rethinking. 2001-06-01 08:02:09 +00:00
Guus Sliepen
7db1b999c8 Make sure Solaris is happy too. 2001-05-28 08:56:57 +00:00
Guus Sliepen
65247c063b Small fixes to allow correct compilation under FreeBSD (tested with 4.3) 2001-05-28 08:21:43 +00:00
Guus Sliepen
fcf869cd42 TCPonly now works (in a relatively clean way too). 2001-05-25 11:54:28 +00:00
Guus Sliepen
a5e2ae6b2b With recent kernels the tun device file is located in /dev/net. 2001-05-25 10:08:11 +00:00
Guus Sliepen
4dee76522e Small fixes: 
- Fix compiler warnings (one was a real (but harmless) bug)
- Don't send PING packets if there is UDP traffic
- Correctly terminate strings containing salt for PING/PONG packets
 2001-05-25 08:36:11 +00:00
Guus Sliepen
bfc5d6014e Only send key_changed if it was previously requested. 2001-05-24 21:52:26 +00:00
Guus Sliepen
58893f0875 Since this is incompatible with some earlier versions, PROT_CURRENT is 
increased.
 2001-05-24 21:30:36 +00:00
Guus Sliepen
d1b597758e Add randomness to PING/PONG packets to prevent crypto attacks on quiet 
tunnels.
 2001-05-24 21:29:09 +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
a26081467c Correctly cycle through ConnectTo variables. 2001-05-04 18:45:02 +00:00
Guus Sliepen
156ec67652 Check indirectdata option before forwarding certain requests. 2001-03-13 21:33:31 +00:00
Guus Sliepen
c426e981ee Ignore alarm signals if we do not need to respond to them. 2001-03-13 21:32:24 +00:00
Guus Sliepen
b413257e10 Fixed bug in setup_signals() that would make tinc die when unexpected 
signals were caught.
 2001-03-13 09:55:14 +00:00
Guus Sliepen
f1a082823c Fixed a race condition triggered by receive_meta() and the new 
authentication scheme.
 2001-03-12 23:58:19 +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
d2a54597e0 Added explaination of our key exchange using RSA encryption. 2001-03-02 11:25:56 +00:00
Guus Sliepen
125c497881 Various small fixes. 2001-03-01 21:32:04 +00:00
Guus Sliepen
4fa12eb85d Removed lots of compiler warnings. 2001-02-27 16:37:31 +00:00
Guus Sliepen
173d606514 - Fixed Interface option (untested) 
- Removed error handling for non-critical socket options
- Added TCP_NODELAY and IPTOS_LOWDELAY options for meta sockets.
 2001-02-27 16:17:04 +00:00
Guus Sliepen
24fa685859 Don't forget to reconnect if outgoing connection fails during 
authentication.
 2001-02-27 15:33:39 +00:00
Guus Sliepen
34b7a876c3 - Make sure METAKEY is smaller than the modulus of the RSA key 
- Get symmetric key from the least significant bytes of the RSA message
 2001-02-26 11:37:20 +00:00
Guus Sliepen
82455be966 Implemented new authentication scheme from doc/SECURITY2. 2001-02-25 19:09:45 +00:00
Guus Sliepen
54881faf6f Encrypt network packets in CBC mode instead of CFB mode. 
(This breaks compatibility with all previous versions!)
 2001-02-25 16:34:19 +00:00
Guus Sliepen
9de5787574 Copy packets before putting them in the queue. 2001-02-25 16:04:00 +00:00
Guus Sliepen
e250d64300 Add missing \n. 2001-02-25 14:51:42 +00:00
Guus Sliepen
153fc35e57 Corrected check for errors after read() calls. 2001-02-25 11:09:29 +00:00
Ivo Timmermans
cebb6efeb0 More files to ignore in CVS 2001-02-11 11:55:28 +00:00
Guus Sliepen
603781831f - Updated CVS_CREATED to remove intl/ directory and some other 
autogenerated files.
- Checked if all INCLUDES/LIBS/etc directives inherit the global variables.
 2001-02-11 11:50:09 +00:00
Guus Sliepen
88dfdc9dba Ignore file for src/ 2001-02-11 11:46:14 +00:00
Guus Sliepen
f1cb3d8fa5 Removed another local definition of the variable "errno" 2001-02-06 10:42:27 +00:00
Guus Sliepen
f777c1807d FreeBSD compile fixes (thanks to XeF4) 2001-02-06 10:12:51 +00:00
Ivo Timmermans
54e19d3466 Fix error reporting of read_config 2001-01-17 01:30:05 +00:00
Guus Sliepen
a56df1e06b - Allow ASN1 style keys to be in the config files. 
Note: tinc ignores private key in the main config file, tinc.conf,
  because it should really be in a separate file.
- When generating new keys, check if name is known and by default append
  the public key to the host configuration file (otherwise rsa_key.pub).
 2001-01-13 16:36:23 +00:00
Guus Sliepen
d646f4e094 - Only send out DEL_HOSTs for hosts with a meta connection 2001-01-11 11:19:08 +00:00
Guus Sliepen
c8beaf35ee - Cleaned up subnet_t 2001-01-08 21:32:30 +00:00
Guus Sliepen
11f3e9d138 - Squashed another nasty bug. 2001-01-08 20:35:30 +00:00
Guus Sliepen
447a43d639 - Added indirectdata and tcponly functionality. 2001-01-07 20:19:35 +00:00
Guus Sliepen
7cd2baedc6 - Fixed IPv6 subnet lookup routine. 2001-01-07 20:19:08 +00:00
Guus Sliepen
d3f889c807 - It's 2001, all copyright notices are updated. 2001-01-07 17:09:07 +00:00
Guus Sliepen
7109526c67 - Added header file for route.c. The routing routines in it are not used 
yet, but have a look at the source for the ideas behind it.
 2001-01-07 15:27:30 +00:00
Guus Sliepen
07a08f5539 - Reinstated a queue for outgoing packets. 2001-01-07 15:25:49 +00:00
Guus Sliepen
f7bb205022 - Check and follow symlinks in is_safe_path 
- By default write keys to tinc config directory
- Small fix in protocol.c
 2001-01-06 18:03:41 +00:00
Guus Sliepen
e924096f62 - Let user choose whether keys are in the config files or separate 
- Use AVL trees instead of RBL trees
- Fixed a lot of annoying subtle bugs! Thanks to gdb...
 2001-01-05 23:53:53 +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
ecae72de94 Added lint target, requires lclint. 2000-12-22 17:15:26 +00:00
Ivo Timmermans
e469fca4d7 Re-introduced MyVirtualIP and VpnMask, as dummy options. 2000-12-06 13:33:49 +00:00
Ivo Timmermans
6327f32f43 Tiny bits of code beautifying 2000-12-05 08:59:30 +00:00
Ivo Timmermans
9267bed9f5 Oops. I did some VERY wrong things with readline(). Fixed now. 2000-12-05 08:56:44 +00:00
Ivo Timmermans
bc22ee16e6 Option -d accepts an argument to set the debug level immediately. 2000-12-03 12:23:06 +00:00
Ivo Timmermans
01d23601a2 Sort configuration directives 2000-12-03 12:22:19 +00:00
Ivo Timmermans
52575a573c Use buffer instead of line in read_config_file(), line may be assigned 
NULL, so buffer always holds the pointer to the allocated space.
 2000-12-01 12:38:42 +00:00
Ivo Timmermans
ab33c1aa60 readline() accepts two extra parameters, buf and buflen, to avoid 
mallocing and freeing for every line that is read.
 2000-12-01 12:36:36 +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
Ivo Timmermans
28deaeac14 Avoid printing duplicate messages from read_rsa_keys 2000-11-30 22:48:48 +00:00
Ivo Timmermans
2293304748 Better error checking when reading the RSA private key. 2000-11-30 22:33:16 +00:00
Ivo Timmermans
bf4e969899 In readline(): initialise the line to zero length; 
In read_config_file(): Test for EOF, and print the variable name that
caused an error.
 2000-11-30 22:32:14 +00:00
Ivo Timmermans
113198d9c0 The file is safe if it doesn't exist. 2000-11-30 21:11:03 +00:00
Ivo Timmermans
09260b43d1 Read the PEM file pointed to by the configuration directive 
PrivateKey.  This means thatt he meaning of this variable has changed,
it no longer should contain the private key directly.

WARNING: This code is untested.
 2000-11-30 20:08:41 +00:00
Ivo Timmermans
8ccb1ede92 Implemented is_safe_path, and extended ask_and_safe_open. 
is_safe_path needs more work before it is useable.
 2000-11-30 00:24:13 +00:00
Ivo Timmermans
d36da1948a Also free the pointer returned by readline(). 2000-11-29 14:30:07 +00:00
Ivo Timmermans
9e55426d72 Use readline() in read_config_file() instead of fgets. 2000-11-29 14:27:24 +00:00
Ivo Timmermans
54ef13bf75 Implemented a readline() function that will read an entire line into a 
dynamically allocated buffer;

Ask for a file name in ask_and_safe_open().
 2000-11-29 14:24:40 +00:00
Ivo Timmermans
3ff76eb10a Save RSA public and private keys to a separate file, instead of 
wanting to copy them into a configuration file.
 2000-11-28 23:12:57 +00:00
Ivo Timmermans
4c502b005b Use sigaction to set signal handlers, the previous commit (1.1.2.16) 
already contained a large portion of what should have gone in this
one.
 2000-11-28 08:59:27 +00:00
Ivo Timmermans
67a4abda70 Give an error message if daemon() failed. 2000-11-26 22:42:34 +00:00
Guus Sliepen
1eedf54681 - Use only one socket for all UDP traffic (for compatibility) 
- Write pidfile again after detaching
- Check OS (for handling FreeBSD/Solaris tun/tap stuff)
 2000-11-25 13:33:33 +00:00
Guus Sliepen
cf49b2c064 Another big & bad commit: 
- Added some extra search functions to rbl routines
- Fix subnet_lookup()
- Reorder some syslog messages to make more sense
- daemon() is back
- Don't let scripts execute in parallel (gives race conditions, and
  anyway something MIGHT just be configured which is necessary for further
  execution of tinc itself)
- Accidently merged check_child() with execute_script().
- Small fixes
 2000-11-24 23:13:07 +00:00
Ivo Timmermans
b0ff879e7c Do not use the C library's daemon() call. 2000-11-24 12:44:39 +00:00
Guus Sliepen
dac256505e - Fixed all (except 2) compiler warnings gcc -Wall gave. 2000-11-22 22:18:03 +00:00
Guus Sliepen
6f373e6902 - More porting to FreeBSD and Solaris. 2000-11-22 22:05:37 +00:00
Guus Sliepen
5971e352da - Work with the correct key buffer in ans_key_h 2000-11-22 20:25:27 +00:00
Guus Sliepen
a07602c4fd - No more %as. 2000-11-22 19:55:53 +00:00
Guus Sliepen
394ed3fb17 - Write pidfile AFTER detaching... 
- Minor cleanups
 2000-11-22 19:14:09 +00:00
Guus Sliepen
f8b4a000d0 - Cleaned up and checked for some more NULL pointers in rbl.c 
- Two connection lists: one for incoming connections, sorted on ip/port,
  one for connections whose identity we know, sorted on id ofcourse...
 2000-11-22 18:54:08 +00:00
Ivo Timmermans
785684f0ec Declare fd. 2000-11-22 17:49:16 +00:00