Commit Graph

750 Commits

Author SHA1 Message Date
Nick Mathewson
9d41629aa0 Delay getsockname() call until after connect() is done
On Windows, getsockname() on a nonblocking apparently won't work
until the connection is done connecting.  On XP, it seems to fail by
reporting success and declaring that your address is INADDR_ANY.  On the
Win8 preview, though, it fails more loudly and says WSAEINVAL.

Fix for bug 5374; bugfix on 0.1.1.14-alpha.
2012-05-24 16:57:36 -04:00
Nick Mathewson
dd3f4f1bdb Include a Host: header with any HTTP/1.1 proxy request
Bugfix on 0.2.2.1-alpha, which added the orginal HTTP proxy
authentication code.  Fix for bug 5593.
2012-04-10 12:00:20 -04:00
Robert Ransom
e111e371b4 Implement 'safe cookie authentication' 2012-02-22 05:46:09 -08:00
Sebastian Hahn
d861b4cc9d Fix spelling in a controlsocket log msg
Fixes bug 4803.
2011-12-30 23:27:02 +01:00
Nick Mathewson
b5e6bbc01d Do not even try to keep going on a socket with socklen==0
Back in #1240, r1eo linked to information about how this could happen
with older Linux kernels in response to nmap.  Bugs #4545 and #4547
are about how our approach to trying to deal with this condition was
broken and stupid.  Thanks to wanoskarnet for reminding us about #1240.

This is a fix for the abovementioned bugs, and is a bugfix on
0.1.0.3-rc.
2011-12-21 11:19:41 -05:00
Nick Mathewson
d79d648edc Don't write ControlPorts to disk till after we setuid and make datadir
Fix for bug 3747; bugfix on 0.2.2.26-beta.
2011-08-17 11:22:16 -04:00
Nick Mathewson
2ba19f9b4a Merge remote-tracking branch 'origin/maint-0.2.1' into maint-0.2.2 2011-07-01 12:55:23 -04:00
Nick Mathewson
959da6b7f2 Use strlcpy in create_unix_sockaddr()
Using strncpy meant that if listenaddress were ever >=
sizeof(sockaddr_un.sun_path), we would fail to nul-terminate
sun_path.  This isn't a big deal: we never read sun_path, and the
kernel is smart enough to reject the sockaddr_un if it isn't
nul-terminated.  Nonetheless, it's a dumb failure mode.  Instead, we
should reject addresses that don't fit in sockaddr_un.sun_path.

Coverity found this; it's CID 428.  Bugfix on 0.2.0.3-alpha.
2011-07-01 12:54:24 -04:00
Robert Ransom
d7254bea11 Fix minor comment issues 2011-06-22 14:09:43 -07:00
Jérémy Bobbio
54d7d31cba Make ControlSocketsGroupWritable work with User.
Original message from bug3393:

check_private_dir() to ensure that ControlSocketsGroupWritable is
safe to use. Unfortunately, check_private_dir() only checks against
the currently running user… which can be root until privileges are
dropped to the user and group configured by the User config option.

The attached patch fixes the issue by adding a new effective_user
argument to check_private_dir() and updating the callers. It might
not be the best way to fix the issue, but it did in my tests.

(Code by lunar; changelog by nickm)
2011-06-14 12:18:32 -04:00
Sebastian Hahn
df42eb0a18 Fix unit test failure in dir/formats
options->DirPort is 0 in the unit tests, so
router_get_advertised_dir_port() would return 0 so we wouldn't pick a
dirport. This isn't what we want for the unit tests. Fixes bug
introduced in 95ac3ea594.
2011-06-02 13:44:33 +02:00
Nick Mathewson
e035cea031 Merge branch 'bug3216_v2' into maint-0.2.2 2011-05-30 16:12:53 -04:00
Nick Mathewson
da7c60dcf3 Merge remote-tracking branch 'public/bug3270' into maint-0.2.2 2011-05-30 14:49:49 -04:00
Nick Mathewson
0e1fad648d Don't try to build descriptors when router_get_advertised_or_port()==0
The previous attempt was incomplete: it told us not to publish a
descriptor, but didn't stop us from generating one.  Now we treat an
absent OR port the same as not knowing our address.  (This means
that when we _do_ get an OR port, we need to mark the descriptor
dirty.)

More attempt to fix bug3216.
2011-05-24 18:05:37 -04:00
Nick Mathewson
b80a8bba19 Merge branch 'feature3049-v2' into maint-0.2.2
Conflicts:
	src/common/Makefile.am
2011-05-23 01:19:04 -04:00
Nick Mathewson
cfeafe5e77 Use a 64-bit type to hold sockets on win64.
On win64, sockets are of type UINT_PTR; on win32 they're u_int;
elsewhere they're int.  The correct windows way to check a socket for
being set is to compare it with INVALID_SOCKET; elsewhere you see if
it is negative.

On Libevent 2, all callbacks take sockets as evutil_socket_t; we've
been passing them int.

This patch should fix compilation and correctness when built for
64-bit windows.  Fixes bug 3270.
2011-05-23 00:17:48 -04:00
Robert Ransom
338a026610 Split control connection cleanup out of connection_free 2011-05-20 08:25:42 -07:00
Sebastian Hahn
c13fb7feb1 Fix a compile warning on OSX 10.6 2011-05-20 05:53:55 +02:00
Michael Yakubovich
a3707a1052 Fix bug2752 : 48-char HTTPProxyAuthenticator limitation
Bumped the char maximum to 512 for HTTPProxyAuthenticator &
HTTPSProxyAuthenticator. Now stripping all '\n' after base64
encoding in alloc_http_authenticator.
2011-05-16 16:09:35 -04:00
Nick Mathewson
919bf6ff3c Merge remote-tracking branch 'public/bug2850' into maint-0.2.2
Fixed a trivial conflict where this and the ControlSocketGroupWritable
code both added different functions to the same part of connection.c.

Conflicts:
	src/or/connection.c
2011-05-16 11:10:17 -04:00
Nick Mathewson
4b800408fa Check permissions on the directory holding a control socket 2011-05-15 20:20:29 -04:00
Nick Mathewson
3b6cbf2534 Add a function to pull off the final component of a path 2011-05-15 20:20:29 -04:00
Sebastian Hahn
4198261291 Clean up the 2972 implementation a little 2011-05-15 20:20:28 -04:00
Jérémy Bobbio
d41ac64ad6 Add UnixSocketsGroupWritable config flag
When running a system-wide instance of Tor on Unix-like systems, having
a ControlSocket is a quite handy mechanism to access Tor control
channel.  But it would be easier if access to the Unix domain socket can
be granted by making control users members of the group running the Tor
process.

This change introduces a UnixSocketsGroupWritable option, which will
create Unix domain sockets (and thus ControlSocket) 'g+rw'. This allows
ControlSocket to offer same access control measures than
ControlPort+CookieAuthFileGroupReadable.

See <http://bugs.debian.org/552556> for more details.
2011-05-15 20:20:28 -04:00
Nick Mathewson
dad12188a6 Write automatically-chosen control ports to a file. 2011-05-13 10:41:28 -04:00
Nick Mathewson
61c06cbc66 Teach retry_listener about "auto" ports.
Otherwise, it will just immediately close any port declared with "auto"
on the grounds that it wasn't configured.  Now, it will allow "auto" to
match any port.

This means FWIW if you configure a socks port with SocksPort 9999
and then transition to SocksPort auto, the original socksport will
not get closed and reopened.  I'm considering this a feature.
2011-05-13 10:41:18 -04:00
Nick Mathewson
5fec8fe559 "(Socks|Control|etc)Port auto" now tells Tor to open an arbitrary port
This is the major part of the implementation for trac issue 3076.
2011-05-13 10:41:18 -04:00
mikey99
42fcf059d2 Fixes ticket #2503
HTTPS error code 403 is now reported as:
"The https proxy refused to allow connection".
Used a switch statement for additional error codes to be explained
in the future.
2011-05-12 17:33:09 -04:00
Sebastian Hahn
d7d25558fa Remove a duplicated line, found by clang 2011-05-09 13:19:46 -04:00
Nick Mathewson
aba7bb705a Set SO_REUSEADDR on all sockets, not just listeners
See bug 2850 for rationale: it appears that on some busy exits, the OS
decides that every single port is now unusable because they have been
all used too recently.
2011-05-03 22:22:20 -04:00
Sebastian Hahn
8d81831d71 Add a missing cast to silence the compiler 2011-03-28 19:25:38 +02:00
Nick Mathewson
dddd333a80 Fix some 'impossible' overflow bugs in byte counting
The first was genuinely impossible, I think: it could only happen
when the amount we read differed from the amount we wanted to read
by more than INT_MAX.

The second is just very unlikely: it would give incorrect results to
the controller if you somehow wrote or read more than 4GB on one
edge conn in one second.  That one is a bugfix on 0.1.2.8-beta.
2011-03-25 18:32:28 -04:00
Nick Mathewson
05887f10ff Triage the XXX022 and XXX021 comments remaining in the code
Remove some, postpone others, leave some alone.  Now the only
remaining XXX022s are ones that seem important to fix or investigate.
2011-03-25 18:32:27 -04:00
Nick Mathewson
c5ffd44ccd Merge branch 'bug2756_relay' into maint-0.2.2 2011-03-15 17:13:07 -04:00
Nick Mathewson
06f026de66 Check newconn, not conn, before marking newconn for close
This fixes bug 2757.  It's a bugfix on 85da676108.
2011-03-14 18:52:15 -04:00
Nick Mathewson
1d36a8e9ae Consider sending stream-level SENDME cells on partial flushes.
Right now, we only consider sending stream-level SENDME cells when we
have completely flushed a connection_edge's outbuf, or when it sends
us a DATA cell.  Neither of these is ideal for throughput.

This patch changes the behavior so we now call
connection_edge_consider_sending_sendme when we flush _some_ data from
an edge outbuf.

Fix for bug 2756; bugfix on svn r152.
2011-03-14 17:48:45 -04:00
Nick Mathewson
411ec3c0f8 Add client code to detect attempts to connect to 127.0.0.1 etc
We detect and reject said attempts if there is no chosen exit node or
circuit: connecting to a private addr via a randomly chosen exit node
will usually fail (if all exits reject private addresses), is always
ill-defined (you're not asking for any particular host or service),
and usually an error (you've configured all requests to go over Tor
when you really wanted to configure all _remote_ requests to go over
Tor).

This can also help detect forwarding loop requests.

Found as part of bug2279.
2011-01-25 20:39:44 -05:00
Nick Mathewson
85da676108 Fix double-mark bug when failing to init transparent connection
Fixes part of bug 2279.  Bugfix on 0.1.2.1-alpha.
2011-01-25 19:07:03 -05:00
Nick Mathewson
f1de329e78 Merge remote branch 'origin/maint-0.2.1' into maint-0.2.2
Conflicts:
	src/common/test.h
	src/or/test.c
2011-01-03 11:51:17 -05:00
Nick Mathewson
1a07348a50 Bump copyright statements to 2011 2011-01-03 11:50:39 -05:00
Sebastian Hahn
556a1b9e45 Change Natd into NATD in our options.
Breaking this out of the last commit because this might be more
controversial.
2010-11-10 15:48:26 +01:00
Sebastian Hahn
b9cac605ab Synx manpage and source wrt option capitalization
We had a spelling discrepancy between the manpage and the source code
for some option. Resolve these in favor of the manpage, because it
makes more sense (for example, HTTP should be capitalized).
2010-11-10 15:48:26 +01:00
Nick Mathewson
ba9c1275c4 Add a generic rate-limited log mechanism, and use it in a few places
Incidentally fixes bug 1042.
2010-08-18 15:55:49 -04:00
Nick Mathewson
a509dbba50 Merge commit 'karsten/dirbytes2'
Conflicts:
	src/or/rephist.h
2010-08-18 10:06:14 -04:00
Karsten Loesing
58b6195455 Correctly report written bytes on linked connections. 2010-08-18 13:54:41 +02:00
Karsten Loesing
db94b7f46e Count bytes we spend on answering directory requests. 2010-08-18 13:54:41 +02:00
Nick Mathewson
a856f446c7 Merge commit 'sebastian/bug1831' 2010-08-15 23:43:36 -04:00
Sebastian Hahn
561ca9b987 Fix misplaced labels 2010-08-16 00:46:44 +02:00
Karsten Loesing
acd25558b8 Refactor exit port statistics code and add unit tests. 2010-08-11 16:19:54 +02:00
Sebastian Hahn
05072723cb Create routerparse.h 2010-07-27 10:00:46 +02:00