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169 Commits

Author SHA1 Message Date
Aleksei Fedotov 4987aa536d Add support for socket activation by ipv6 socket 
iodined may accept ipv4 and ipv6 sockets via systemd socket activation,
we need to figure out type of sockets.
 2016-05-10 14:09:21 +03:00
Erik Ekman fc1611fc40 Only accept IPv6 in server IPv6 socket 
Set IPV6_V6ONLY flag on server socket. Not all operating systems
support mixing v4/v6 in one socket, so separate them all the time.
 2015-06-30 21:58:16 +02:00
Erik Ekman 4d03ee7786 Allow choosing only IPv4 or IPv6 in server 
IPv6 might still allow IPv4 since V6_ONLY is not set by the server.
 2015-06-30 21:32:21 +02:00
Erik Ekman b4e9148df8 Support raw mode for both IPv4 and IPv6 
Read destination address of IP request packet and return it.
Check length in client and use it as IPv4 or v6 depending on length.
 2015-06-28 22:41:54 +02:00
Erik Ekman 7a51b22909 Simplify cleanup code 2015-06-28 21:05:23 +02:00
Erik Ekman ec0e3f2e51 Change sockaddr lengths back to signed 
They are used to check negative return values.
 2015-06-28 20:25:22 +02:00
Erik Ekman 7a117bd71e IPv6 support for DNS traffic in server 
Server will by default listen on both IPv4 and IPv6.
No way to only listen on one protocol right now.

Use -L to only listen on a specific v6 address.

IP address to use for raw mode is still IPv4 only.
Use -n on server to make raw mode work from IPv6 clients,
then they will get an IPv4 address from the server for raw mode.

Tunnel data is still IPv4.
 2015-06-28 20:01:48 +02:00
Erik Ekman 07c2fd4068 Prepare server code for IPv6 listening socket 
Add a struct with multiple dns file descriptors (for IPv4 and IPv6)
and pass this to required areas. Choose which descriptor to use when
sending by looking at the destination address family.
 2015-06-28 13:05:17 +02:00
Erik Ekman 582a818f2a Switch external IP service to api.ipify.org 
externalip.net seems to have gone away
 2015-06-27 12:11:43 +02:00
Erik Ekman 778d29825d Switch to IPv6-ready storage of user IP address 2015-06-27 11:57:39 +02:00
Erik Ekman 9a45c4aa66 Change license wording to follow ISC license exactly 
"Permission to use, copy, modify, and distribute this software" is now
"Permission to use, copy, modify, and/or distribute this software".

Add license header to source files missing one.
 2014-08-07 21:18:33 +02:00
Barak A. Pearlmutter 46532539c2 Rename VERSION define 
prep for autotools: autoconf defines VERSION so s/VERSION/PROTOCOL_VERSION/
 2014-08-07 12:55:59 +02:00
Erik Ekman b715be5cf3 Fix authentication bypass bug 
The client could bypass the password check by continuing after getting error
from the server and guessing the network parameters. The server would still
accept the rest of the setup and also network traffic.

Add checks for normal and raw mode that user has authenticated before allowing
any other communication.

Problem found by Oscar Reparaz.
 2014-06-16 21:43:22 +02:00
Erik Ekman 3ebcd29b13 Add support for using an unspecified RR type 
Add PRIVATE query type with id 65399 (private use range).
According to RFC3597 the reply data in a query with unspecified RR type must be handled
as unstructured binary data, which means it can contain raw packet data just like the NULL type.
Since the reply format is optimal it is ordered just after NULL in the priority order.
 2014-06-09 20:06:36 +02:00
Erik Ekman a23899513d Remove trailing whitespace 2014-06-01 08:46:54 +02:00
Erik Ekman 388afe3845 Update copyright 2014-06-01 08:46:54 +02:00
Erik Ekman 3914d37c99 Move error message generation into topdomain check method 
Change isalpha() to a-z check to avoid locale issues
 2014-05-31 10:07:36 +02:00
Erik Ekman d6c3426b84 Set C standard to C99 
Also include strings.h where strcasecmp() is used
 2014-05-29 18:38:43 +02:00
Erik Ekman eca80f769b Merge branch 'master' of https://github.com/jedisct1/iodine 2014-04-06 13:31:34 +02:00
Erik Ekman f02339b3b2 IPv6: Create single way to format IP addresses 2014-02-06 19:44:26 +01:00
Erik Ekman a1d88c4f0a IPv6 support for client (#107) 
The iodine client now supports both IPv4 and IPv6 nameservers for
sending DNS queries to an IPv4 iodined. The nameserver will
transparently handle translation between IP protocols.

Windows port needs Vista or later to support IPv6.
 2014-02-05 22:36:53 +01:00
Erik Ekman 8baad91156 Make sure buffer is zero-terminated when getting external ip 
Also switch to HTTP 1.0 to avoid chunked transfer coding.
 2014-01-29 23:12:22 +01:00
Erik Ekman fb9e930fee Print git revision as version 2014-01-29 20:25:45 +01:00
Erik Ekman 900647fa0c Merge pull request #4 from mscherer/systemd 
Add socket activation for systemd, with a option to stop on idle
 2014-01-29 09:25:00 -08:00
Michael Scherer abd276ed9e Add idle option, so we can stop iodine and start it on demand with systemd 2013-12-23 22:57:50 +01:00
Michael Scherer 27fb4c75cd Add support to have on demand socket activation of iodine 2013-12-23 22:57:40 +01:00
Michael Scherer 64ff684754 Fix gcc warning -Wsizeof-pointer-memaccess 
iodined.c: In function ‘write_dns_nameenc’:
iodined.c:2030:23: attention : argument to ‘sizeof’ in ‘memset’ call is the same
expression as the destination; did you mean to provide an explicit length? [-Wsizeof-pointer-memaccess]
  memset(buf, 0, sizeof(buf));

sizeof buf will just give the size of the pointer, while buflen will clean the whole
memory.
 2013-12-23 18:04:06 +01:00
Frank Denis 58dac78bd8 Fix NULL pointer deref 2013-05-20 10:30:43 -07:00
Frank Denis 2d90aaaf30 Wipe the whole buffer containing the DNS name, not the size of its pointer 2013-05-20 10:28:25 -07:00
Erik Ekman 43e4fb5448 Add automatic external IP lookup via '-n auto' 
Leonard Lausen proposed iodined should use externalip.net api
to find external ip. Use -n auto to trigger a lookup.
 2012-09-03 10:34:27 +02:00
Erik Ekman 45a5d80c49 Adjust indentation 2012-02-06 20:28:42 +01:00
Marcel Bokhorst a569030bb7 Android support (#105) patch from Marcel Bokhorst 2012-02-04 20:34:05 +01:00
Erik Ekman 0a968a5144 Initialize 'inside_topdomain'. Fixes #94 2012-02-04 20:34:05 +01:00
Erik Ekman 0be4332193 Fix things mentioned in #91 2012-02-04 20:34:05 +01:00
Erik Ekman b22e3da5a0 #89, use remote ip as second ip in ifconfig on FreeBSD 2012-02-04 20:34:05 +01:00
Erik Ekman 465cfe54a3 Fix build error on windows 2012-02-04 20:34:04 +01:00
jsbid1 7ae8d04955 Fix #86, patch from jsbid1 gmail.com 2012-02-04 20:34:04 +01:00
J. A. Bezemer b177901d38 Applied patch from #88, thanks a lot! 2012-02-04 20:34:04 +01:00
J. A. Bezemer d87432ec18 merge server code #76 2012-02-04 20:34:04 +01:00
J. A. Bezemer 60dfbf1b34 merge dns and user #76 2012-02-04 20:34:04 +01:00
Erik Ekman d4d88d2ad0 Remove arg to inline_dotify 2012-02-04 20:34:04 +01:00
J. A. Bezemer 40167437d3 update server code #75 2012-02-04 20:34:04 +01:00
Erik Ekman b6eb8d75d4 Fix FreeBSD build error, remove more includes 2012-02-04 20:34:03 +01:00
Erik Ekman f9c2257ba9 Prune includes 2012-02-04 20:34:03 +01:00
Guillaume Rischard 3879f96a80 Fix build error on OSX 10.6 by Guillaume Rischard, #79 2012-02-04 20:34:03 +01:00
Erik Ekman 01e558022e #77, get password from env variable 2012-02-04 20:34:03 +01:00
misc 7efdd01ae2 add -F option for writing pid file. Patch from misc@mandriva.org #70 2012-02-04 20:34:03 +01:00
Erik Ekman ef8e3b7ea4 Fix win32 build error 2012-02-04 20:34:03 +01:00
Erik Ekman cb926cf0c9 Fix some uninitialized variable warnings 2012-02-04 20:34:03 +01:00
Erik Ekman 473bb93951 #36, Send ping message every 20 seconds 2012-02-04 20:34:03 +01:00