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293 commits

Author SHA1 Message Date
Guus Sliepen
04cb206298 - Moved all connection messages to debug level 1, without -d's only the 
startup message will be logged.
- Fixed DEL_HOST rebound.
 2000-06-26 20:30:21 +00:00
Guus Sliepen
783c829861 - Indirectdata finally REALLY REALLY works now! 
- More precise debug messages
 2000-06-26 19:39:34 +00:00
Guus Sliepen
b3681ebf6c Fixes some hostlookups. Fixes indirectdata for real now (hopefully). 2000-06-26 17:20:58 +00:00
Guus Sliepen
f1f901112e Hostlookup() is actually being called now. 2000-06-25 16:20:27 +00:00
Guus Sliepen
54079bdf03 Hostnames are back! 2000-06-25 16:01:12 +00:00
Guus Sliepen
7f7e158aae Large cleanup: 
- Removed hostname lookup (it blocks, and you can always do it yourself)
- Reorganized debug levels (after hints from Axel M�ller):
  0	Startup message and errors
  1	Connection logging
  2	Meta protocol information
  3	Verbose meta protocol (includes copy of transmitted requests)
  4	Packet information (logs transmission/errors of UDP packets)
  5	Verbose packet information (every single byte, not implemented yet
	to protect ourselves from filling up /var/log directories)
- Made log messages more consistent
 2000-06-25 15:16:12 +00:00
Guus Sliepen
3c54a513b0 If we have "indirectdata" flag set, we only send data to our uplink. 2000-06-24 12:35:42 +00:00
Guus Sliepen
d8e2f7104c First step for implementation of the "indirectdata" directive. This should 
allow _leaf_ tincds to be behind firewalls.
The protocol has changed and is INCOMPATIBLE with previous versions. The
PROT_CURRENT value has been incremented.
 2000-06-23 19:27:03 +00:00
Ivo Timmermans
77be52422d Miscellaneous copyright updates. 2000-05-31 18:23:06 +00:00
Ivo Timmermans
e7f22d2f5f In terminate_connection, only send a notification to hosts that are directly connected to us. (DEL_HOST gets forwarded automatically.) 2000-05-30 12:38:15 +00:00
Ivo Timmermans
2fdda8e4fa When a connection is terminated, all hosts that are still connected get notified of the lost connections. 2000-05-30 12:31:41 +00:00
Guus Sliepen
a7ad161d2b Only activate a connection upon receiving it's public key if it's an 
incoming connection. When it's outgoing, we need to receive an ack first.
 2000-05-29 23:40:05 +00:00
Ivo Timmermans
a822c7466a Bounds check for request id (between 0 and 255). 2000-05-29 22:20:04 +00:00
Ivo Timmermans
9fd02ffcb0 Internationalization of tinc. 2000-05-29 21:01:26 +00:00
Guus Sliepen
61e71ab74a Terminate a connection on any error. Furthermore, disallow del_host, 
add_host and other important requests until remote host has properly
authenticated itself.
 2000-05-27 20:23:01 +00:00
Guus Sliepen
cc01b18bc6 Made tinc persistent. If no outgoing connection can be established right 
after the start of the daemon, it won't quit anymore but will retry in 5
minutes. Also, 5 minutes is now the maximum time to wait for a retry.
 2000-05-27 19:44:04 +00:00
Guus Sliepen
028659bfbf Fixed typos. When terminating a connection, it's status is not only set to 
remove=1 but also active=0.
 2000-05-27 19:23:20 +00:00
Guus Sliepen
e4ff969a98 Fix for a DoS attack: 
A remote user could telnet to the tinc daemon and type only this line:
 61 6 00000000/00000000:28f
 This would deny any packets to be sent to other tinc networks (except
 for to the hosts that run tincd's themselves). Solution is to skip
 hosts in lookup_conn() that have not been activated yet.
Fixed potential conn_list table corruption:
 If a new connection is accepted but a connection with the same subnet
 would already exist in the connection list, the OLD connection is
 terminated.
 2000-05-27 19:04:12 +00:00
Ivo Timmermans
803f908078 Give IP address instead of hex number when connecting tcp socket failed. 2000-05-14 21:07:16 +00:00
Guus Sliepen
9d023b1f2e Fixed typos. 2000-05-14 13:06:52 +00:00
Guus Sliepen
e20e143f1e Changed ping behaviour (backwards compatible). If we don't have any data 
to send, we don't need to check if the connection is still alive.
Furthermore, if we receive any kind of data from the other end, we know
it's alive, so we don't need to check it either. So, PING requests are
only sent if we send packets but there is no response.
 2000-05-14 13:02:20 +00:00
Guus Sliepen
ee96ccabbb Cleanups. 2000-05-14 12:22:42 +00:00
Guus Sliepen
8caa1b9d75 Proxymode removed. 2000-05-14 11:39:18 +00:00
Guus Sliepen
d0ba34ccae Added new config variable "ProxyMode". If enabled, all outgoing packets 
are sent to the uplink (ConnectTo), which will have to forward them for
us (kernel should do that). This is for people behind firewalls.
 2000-05-08 18:44:15 +00:00
Guus Sliepen
a083b1cf30 Squashed gcc warning. 2000-05-03 18:02:15 +00:00
Guus Sliepen
7853247523 Fixes typo and UDP network byte order. 2000-05-03 17:59:07 +00:00
Guus Sliepen
505b5ec2cd Outgoing packets now use network byte order in header. 2000-05-03 15:37:32 +00:00
Guus Sliepen
aeccaca829 Previous fix fixed. Meta protocol should be really flawless from now on! 2000-05-02 09:55:34 +00:00
Guus Sliepen
989d7edc07 Fixed small mistake that would prevent forwarding requests. 2000-05-02 09:10:33 +00:00
Guus Sliepen
ca6abd41ea Meta protocol overhaul. Tinc is now incompatible with previous versions, 
furthermore this version does NOT work yet because of a problem with
sending keys (these should be converted to base36 or something like that).
It is possible to telnet to the tinc daemon now and type some commands
by hand though :).
 2000-05-01 18:07:12 +00:00
Ivo Timmermans
ca73b722cb New way of handling the meta protocol. 2000-04-30 16:11:05 +00:00
Ivo Timmermans
cd12345032 Replaced check for status.active by status.dataopen in check_network_activity. 2000-04-30 13:23:53 +00:00
Ivo Timmermans
1c007c0627 Got rid of the nasty hacks... and replaced it by another one. 2000-04-30 01:15:47 +00:00
Guus Sliepen
2371551014 Oops! Reference to write_n() removed and changed into neat write() call. 2000-04-28 11:33:25 +00:00
Guus Sliepen
bb8fff92e1 Removed write_n() function. 2000-04-27 20:57:18 +00:00
Guus Sliepen
44f9449888 Cleanups: 
- Changed recv/send calls into read/write calls for streams
- Made all sizeof() functions use a variable name instead of type
 2000-04-26 17:42:55 +00:00
Ivo Timmermans
643d8712eb Debug level tweaking. 2000-04-25 22:00:49 +00:00
Guus Sliepen
468f1d2efc When trying to talk to a host that is in the netmask of a tinc server but 
not the tinc server itself, and no keys have been exchanged yet, the key
request would be directed to the host instead of the server. Fixed.
 2000-04-25 20:50:59 +00:00
Guus Sliepen
dad90e82d3 Fixed typo and removed some unnecessary variables. 2000-04-25 20:17:44 +00:00
Guus Sliepen
5b72422857 Packet queues fixed. They caused the trouble when resending keys. 2000-04-25 20:10:37 +00:00
Guus Sliepen
3a33568652 Added checkpoints to beginning and ending of every function. 2000-04-25 18:57:23 +00:00
Ivo Timmermans
b50523dc44 Get rid of the message `zxnrbl\'. 2000-03-27 22:30:27 +00:00
Ivo Timmermans
1243156a5e Initial revision 2000-03-26 00:33:07 +00:00