Commit Graph

12775 Commits

Author SHA1 Message Date
Nick Mathewson
fd8947afc2 Move the friendly warning about TPROXY and root to EPERM time
I'm doing this because:
   * User doesn't mean you're running as root, and running as root
     doesn't mean you've set User.
   * It's possible that the user has done some other
     capability-based hack to retain the necessary privileges.
2014-02-02 15:45:00 -05:00
Nick Mathewson
09ccc4c4a3 Add support for TPROXY via new TransTPRoxy option
Based on patch from "thomo" at #10582.
2014-01-31 12:59:35 -05:00
Qingping Hou
ebd99314cf add test case for node_describe_by_id 2014-01-29 22:47:05 -05:00
Qingping Hou
0b0d4b4ebc add test case for hidden service async events 2014-01-29 22:43:11 -05:00
Qingping Hou
29c18f5b71 add hidden service descriptor async control event 2014-01-29 22:23:57 -05:00
Nick Mathewson
3193cbe2ba Rip out all of the v2 directory code.
The remaining vestige is that we continue to publish the V2dir flag,
and that, for the controller, we continue to emit v2 directory
formats when requested.
2014-01-29 15:17:05 -05:00
Nick Mathewson
bb21d14255 Apply StrictNodes to hidden service directories early
Previously, we would sometimes decide in directory_get_from_hs_dir()
to connect to an excluded node, and then later in
directory_initiate_command_routerstatus_rend() notice that it was
excluded and strictnodes was set, and catch it as a stopgap.

Additionally, this patch preferentially tries to fetch from
non-excluded nodes even when StrictNodes is off.

Fix for bug #10722. Bugfix on 0.2.0.10-alpha (the v2 hidserv directory
system was introduced in e136f00ca). Reported by "mr-4".
2014-01-24 12:56:10 -05:00
Nick Mathewson
9be105f94b whitespace fixes 2014-01-17 12:41:56 -05:00
Nick Mathewson
8a49fac9e0 Coverate in util.c: test that tor_parse_* rejects negative base. 2014-01-17 11:58:09 -05:00
Nick Mathewson
ab0fdbb618 Add an --accel switch to run unit tests with crypto acceleration 2014-01-17 11:58:09 -05:00
Nick Mathewson
682c2252a5 Fix some seccomp2 issues
Fix for #10563.  This is a compatibility issue with libseccomp-2.1.
I guess you could call it a bugfix on 0.2.5.1?
2014-01-06 04:27:58 -05:00
Nick Mathewson
9030360277 Add explicit check for 0-length extend2 cells
This is harmless in the Tor of today, but important for correctness.

Fixes bug 10536; bugfix on 0.2.4.8-alpha. Reported by "cypherpunks".
2014-01-03 10:43:09 -05:00
Nick Mathewson
573ee36eae Merge remote-tracking branch 'public/bug10485' 2013-12-24 11:42:35 -05:00
Nick Mathewson
2b8962bc64 Move onion-type stats message into heartbeat
Fix for 10485. Fix on 0.2.4.17-alpha.
2013-12-24 11:41:48 -05:00
Nick Mathewson
6276cca8ce Merge remote-tracking branch 'origin/maint-0.2.4' 2013-12-22 17:26:25 -05:00
Nick Mathewson
b9f6e40ecb Fix automapping to ipv6
Bugfix on 0.2.4.7-alpha; fixes bug 10465.
2013-12-22 17:19:22 -05:00
Nick Mathewson
bbc85b18ca Merge remote-tracking branch 'origin/maint-0.2.4' 2013-12-21 21:16:06 -05:00
Nick Mathewson
b5d13d11c9 Fix a logic error in circuit_stream_is_being_handled.
When I introduced the unusable_for_new_circuits flag in
62fb209d83, I had a spurious ! in the
circuit_stream_is_being_handled loop.  This made us decide that
non-unusable circuits (that is, usable ones) were the ones to avoid,
and caused it to launch a bunch of extra circuits.

Fixes bug 10456; bugfix on 0.2.4.12-alpha.
2013-12-21 10:15:09 -05:00
Nick Mathewson
b98c5884fc Merge remote-tracking branch 'linus/bug10324' 2013-12-20 11:40:21 -05:00
Nick Mathewson
85284c33d1 Merge remote-tracking branch 'origin/maint-0.2.4'
Conflicts:
	src/common/crypto.c
2013-12-18 22:04:21 -05:00
Nick Mathewson
7b87003957 Never allow OpenSSL engines to replace the RAND_SSLeay method
This fixes bug 10402, where the rdrand engine would use the rdrand
instruction, not as an additional entropy source, but as a replacement
for the entire userspace PRNG.  That's obviously stupid: even if you
don't think that RDRAND is a likely security risk, the right response
to an alleged new alleged entropy source is never to throw away all
previously used entropy sources.

Thanks to coderman and rl1987 for diagnosing and tracking this down.
2013-12-18 11:53:07 -05:00
Nick Mathewson
f12d3fe9aa Merge remote-tracking branch 'origin/maint-0.2.4' 2013-12-17 13:54:02 -05:00
Nick Mathewson
561d9880f8 Merge branch 'bug10423' into maint-0.2.4 2013-12-17 13:53:11 -05:00
Nick Mathewson
adfcc1da4a Merge remote-tracking branch 'origin/maint-0.2.4'
Conflicts:
	src/or/microdesc.c

Conflict because one change was on line adjacent to line where
01206893 got fixed.
2013-12-17 13:18:00 -05:00
Nick Mathewson
3d5154550c Merge remote-tracking branch 'public/bug10409_023' into maint-0.2.4 2013-12-17 13:15:45 -05:00
Nick Mathewson
46b3b6208d Avoid double-free on failure to dump_descriptor() a cached md
This is a fix for 10423, which was introducd in caa0d15c in 0.2.4.13-alpha.

Spotted by bobnomnom.
2013-12-17 13:12:52 -05:00
Nick Mathewson
d8cfa2ef4e Avoid free()ing from an mmap on corrupted microdesc cache
The 'body' field of a microdesc_t holds a strdup()'d value if the
microdesc's saved_location field is SAVED_IN_JOURNAL or
SAVED_NOWHERE, and holds a pointer to the middle of an mmap if the
microdesc is SAVED_IN_CACHE.  But we weren't setting that field
until a while after we parsed the microdescriptor, which left an
interval where microdesc_free() would try to free() the middle of
the mmap().

This patch also includes a regression test.

This is a fix for #10409; bugfix on 0.2.2.6-alpha.
2013-12-16 13:06:00 -05:00
Linus Nordberg
129f26e959 Make tor-gencert create 2048 bit signing keys. 2013-12-12 17:39:22 +01:00
rl1987
e6590efaa7 Fix get_configured_bridge_by_addr_port_digest(.,.,NULL)
The old behavior was that NULL matched only bridges without known
identities; the correct behavior is that NULL should match all
bridges (assuming that their addr:port matches).
2013-12-09 11:22:22 -05:00
Nick Mathewson
9c048d90b6 Merge remote-tracking branch 'public/bug10131_024' 2013-12-09 11:06:20 -05:00
Nick Mathewson
c56bb30044 Remove a check in channeltls.c that could never fail.
We were checking whether a 8-bit length field had overflowed a
503-byte buffer. Unless somebody has found a way to store "504" in a
single byte, it seems unlikely.

Fix for 10313 and 9980. Based on a pach by Jared L Wong. First found
by David Fifield with STACK.
2013-12-09 11:02:34 -05:00
David Fifield
b600495441 Set CREATE_NO_WINDOW in tor_spawn_background.
This flag prevents the creation of a console window popup on Windows. We
need it for pluggable transport executables--otherwise you get blank
console windows when you launch the 3.x browser bundle with transports
enabled.

http://msdn.microsoft.com/en-us/library/ms684863.aspx#CREATE_NO_WINDOW

The browser bundles that used Vidalia used to set this flag when
launching tor itself; it was apparently inherited by the pluggable
transports launched by tor. In the 3.x bundles, tor is launched by some
JavaScript code, which doesn't have the ability to set CREATE_NO_WINDOW.
tor itself is now being compiled with the -mwindows option, so that it
is a GUI application, not a console application, and doesn't show a
console window in any case. This workaround doesn't work for pluggable
transports, because they need to be able to write control messages to
stdout.

https://trac.torproject.org/projects/tor/ticket/9444#comment:30
2013-12-05 12:30:11 -05:00
Nick Mathewson
8f9c847fbf Restore prop198 behavior from 4677 patch
The previous commit from piet would have backed out some of proposal
198 and made servers built without the V2 handshake not use the
unrestricted cipher list from prop198.

Bug not in any released Tor.
2013-11-25 10:53:37 -05:00
Nick Mathewson
2d9adcd204 Restore ability to build with V2_HANDSHAKE_SERVER
Fixes bug 4677; bugfix on 0.2.3.2-alpha. Fix by "piet".
2013-11-25 10:51:00 -05:00
Nick Mathewson
acd8c4f868 Avoid warning about impossible check for flags & 0
Fixes CID 743381
2013-11-22 12:42:05 -05:00
Nick Mathewson
23dae51976 Only update view of micrdescriptor pos if pos is fetchable.
It's conceivable (but probably impossible given our code) that lseek
could return -1 on an error; when that happens, we don't want off to
become -1.

Fixes CID 1035124.
2013-11-22 12:38:58 -05:00
Nick Mathewson
a7410c9199 Add checks to prevent memcmp(.,.,negative) in tests (CID 1064417) 2013-11-22 12:33:25 -05:00
Nick Mathewson
569dbcc615 Fix another unit test memory leak. CID1087949,CID1087950. 2013-11-22 12:27:41 -05:00
Nick Mathewson
7c76fd5a82 Fix a bunch of coverity-spotted unit test resource leaks
CIDs: 1130994, 1130993, 1130992, 1130991
2013-11-22 12:21:14 -05:00
Nick Mathewson
6f7eb7a0a5 Remove needless fd var from test. CID 1130989. 2013-11-22 12:16:17 -05:00
Nick Mathewson
6cbd17470d Handle unlikely negative time in tor_log_err_sigsafe
Coverity wants this; CID 1130990.
2013-11-22 12:14:11 -05:00
Nick Mathewson
027f4c82eb Whitespace cleanup 2013-11-20 11:05:00 -05:00
Nick Mathewson
03da9be2f1 Merge remote-tracking branch 'sysrqb/bug9859_5' 2013-11-20 11:03:37 -05:00
Nick Mathewson
e7165659e0 Fix crypto/digests test 2013-11-18 13:33:29 -05:00
Nick Mathewson
a7c9d64fd6 Merge branch 'finish_prop157' 2013-11-18 13:27:06 -05:00
Nick Mathewson
ec9d88e5a2 Tweak #10162 documentation a bit 2013-11-18 13:26:58 -05:00
Nick Mathewson
3cdd7966d7 Add a _GNU_SOURCE definition to backtrace.c to fix compilation 2013-11-18 13:05:23 -05:00
Nick Mathewson
9025423471 Whoops -- add missing defined(). 2013-11-18 11:36:23 -05:00
Nick Mathewson
93c99508d2 Make header includes match declarations in pc_from_ucontext.m4
With any luck, this will clean up errors where we detect that
REG_{EIP,RIP} is present in autoconf, but when we go to include it,
it isn't there.
2013-11-18 11:34:15 -05:00
Nick Mathewson
adf2fa9b49 Fix compilation under openssl 0.9.8
It's not nice to talk about NID_aes_{128,256}_{ctr,gcm} when they
don't exist.

Fix on 84458b79a78ea7e26820bf0; bug not in any released Tor.
2013-11-18 11:25:07 -05:00
Nick Mathewson
bd25bda7c0 Remove 'struct timeval now' that was shadowing 'struct timeval now'.
This was a mistake in the merge commit 7a2b30fe16. It
would have made the CellStatistics code give completely bogus
results. Bug not in any released Tor.
2013-11-18 11:20:35 -05:00
Nick Mathewson
4b9ec85e47 Fix whitespace 2013-11-18 11:13:40 -05:00
Nick Mathewson
84458b79a7 Log more OpenSSL engine statuses at startup.
Fixes ticket 10043; patch from Joshua Datko.
2013-11-18 11:12:24 -05:00
Nick Mathewson
fbc20294aa Merge branch 'backtrace_squashed'
Conflicts:
	src/common/sandbox.c
	src/common/sandbox.h
	src/common/util.c
	src/or/main.c
	src/test/include.am
	src/test/test.c
2013-11-18 11:00:16 -05:00
Nick Mathewson
c2dfae78d3 Refactor format_*_number_sigsafe to have a common implementation 2013-11-18 10:43:16 -05:00
Nick Mathewson
c3ea946839 Reseolve DOCDOC and XXXXs in backtrace.c 2013-11-18 10:43:15 -05:00
Nick Mathewson
56e3f056e9 Tests for backtrace.c
These need to be a separate executable, since the point of backtrace.c
is that it can crash and write stuff.
2013-11-18 10:43:15 -05:00
Nick Mathewson
0cf234317f Unit tests for new functions in log.c 2013-11-18 10:43:15 -05:00
Nick Mathewson
d631ddfb59 Make backtrace handler handle signals correctly.
This meant moving a fair bit of code around, and writing a signal
cleanup function.  Still pretty nice from what I can tell, though.
2013-11-18 10:43:15 -05:00
Nick Mathewson
ce8ae49c94 Improve new assertion message logging
Don't report that a failure happened in the assertion_failed function just
because we logged it from there.
2013-11-18 10:43:15 -05:00
Nick Mathewson
bd8ad674b9 Add a sighandler-safe logging mechanism
We had accidentially grown two fake ones: one for backtrace.c, and one
for sandbox.c.  Let's do this properly instead.

Now, when we configure logs, we keep track of fds that should get told
about bad stuff happening from signal handlers.  There's another entry
point for these that avoids using non-signal-handler-safe functions.
2013-11-18 10:43:15 -05:00
Nick Mathewson
063bea58bc Basic backtrace ability
On platforms with the backtrace/backtrace_symbols_fd interface, Tor
can now dump stack traces on assertion failure.  By default, I log
them to DataDir/stack_dump and to stderr.
2013-11-18 10:43:14 -05:00
Nick Mathewson
7a2b30fe16 Merge remote-tracking branch 'origin/maint-0.2.4'
Conflicts:
	src/or/relay.c

Conflict changes were easy; compilation fixes required were using
using TOR_SIMPLEQ_FIRST to get head of cell queue.
2013-11-15 15:35:00 -05:00
Nick Mathewson
59f50c80d4 Merge remote-tracking branch 'origin/maint-0.2.3' into maint-0.2.4
Conflicts:
	src/or/or.h
	src/or/relay.c

Conflicts were simple to resolve.  More fixes were needed for
compilation, including: reinstating the tv_to_msec function, and renaming
*_conn_cells to *_chan_cells.
2013-11-15 15:29:24 -05:00
Nick Mathewson
f6e07c158f Make the dir-key-crosscert element required
In proposal 157, we added a cross-certification element for
directory authority certificates. We implemented it in
0.2.1.9-alpha.  All Tor directory authorities now generate it.
Here, as planned, make it required, so that we can finally close
proposal 157.

The biggest change in the code is in the unit test data, where some
old hardcoded certs that we made long ago have become no longer
valid and now need to be replaced.
2013-11-14 09:37:41 -05:00
Nick Mathewson
4aa9affec2 Fix test_cmdline_args to work with old openssl
If openssl was old, Tor would add a warning about its version in
between saying "no torrc found, using reasonable defaults" and
"configuration was valid".
2013-11-11 15:22:08 -05:00
Nick Mathewson
fc5a881bd3 Merge remote-tracking branch 'origin/maint-0.2.4' 2013-11-10 12:24:12 -05:00
Nick Mathewson
8bfa596c15 Fix two more DirServer mentions in log 2013-11-10 12:23:56 -05:00
Nick Mathewson
56ac75b265 Fix a wide line 2013-11-10 12:22:34 -05:00
Nick Mathewson
532f70a807 Change documentation DirServer->DirAuthority
We renamed the option, but we didn't actually fix it in the log
messages or the docs.  This patch does that.

For #10124.  Patch by sqrt2.
2013-11-10 12:21:23 -05:00
Nick Mathewson
940d286a74 Documentation and tests for 10060 2013-11-07 14:42:58 -05:00
rl1987
86cfc64d45 Implementing --allow-missing-torrc CLI option. 2013-11-07 14:26:05 -05:00
Nick Mathewson
1b8ceb83c9 Improved circuit queue out-of-memory handler
Previously, when we ran low on memory, we'd close whichever circuits
had the most queued cells. Now, we close those that have the
*oldest* queued cells, on the theory that those are most responsible
for us running low on memory, and that those are the least likely to
actually drain on their own if we wait a little longer.

Based on analysis from a forthcoming paper by Jansen, Tschorsch,
Johnson, and Scheuermann. Fixes bug 9093.
2013-11-07 12:15:30 -05:00
Nick Mathewson
12dc55f487 Merge branch 'prop221_squashed_024'
Conflicts:
	src/or/or.h
2013-11-01 10:28:01 -04:00
Nick Mathewson
5de88dda0a circuit_build_failed: distinguish "got DESTROY" case
Roger spotted this on tor-dev in his comments on proposal 221.

We etect DESTROY vs everything else, since arma likes network
timeout indicating failure but not overload indicating failure.
2013-11-01 10:04:48 -04:00
Nick Mathewson
0de71bf8eb Implement proposal 221: Stop sending CREATE_FAST
This makes FastFirstHopPK an AUTOBOOL; makes the default "auto"; and
makes the behavior of "auto" be "look at the consensus."
2013-11-01 10:04:48 -04:00
Nick Mathewson
5cc155e02a Merge remote-tracking branch 'public/bug9645' into maint-0.2.4 2013-10-31 16:09:41 -04:00
Nick Mathewson
275ab61ad4 Appease make check-spaces 2013-10-31 14:45:20 -04:00
Nick Mathewson
9bcd93a364 Merge remote-tracking branch 'public/bug10063' 2013-10-31 14:43:20 -04:00
Nick Mathewson
761ee93c69 Add missing includes for circpathbias.h 2013-10-31 14:33:34 -04:00
Nick Mathewson
8f793c38fb Move other #9731 check to start of its functions
At arma's suggestion.  Looks like I missed this one.
2013-10-31 14:29:18 -04:00
Nick Mathewson
5cba0ddfc4 Make circpathbias and circuitbuild compile.
That was the tricky part
2013-10-31 14:28:49 -04:00
Nick Mathewson
b4ebf8421a Move pathbias functions into a new file.
Does not compile yet.  This is the "no code changed" diff.
2013-10-31 14:17:49 -04:00
Nick Mathewson
96f92f2062 Move #9731 checks to start of their functions
At arma's suggestion.
2013-10-31 14:10:23 -04:00
Nick Mathewson
702c0502cf Merge remote-tracking branch 'public/bug9731' 2013-10-31 14:09:18 -04:00
Nick Mathewson
db2c2a6909 Merge remote-tracking branch 'public/bug9731b' into maint-0.2.4 2013-10-31 14:08:28 -04:00
Nick Mathewson
61029d6926 Merge remote-tracking branch 'origin/maint-0.2.4' 2013-10-31 14:03:01 -04:00
Nick Mathewson
1b312f7b55 Merge remote-tracking branch 'public/bug9780_024_v2' into maint-0.2.4 2013-10-31 14:02:28 -04:00
Nick Mathewson
0e8ee795d9 Merge remote-tracking branch 'public/bug6055_v2_024' into maint-0.2.4 2013-10-31 13:14:39 -04:00
Nick Mathewson
f6fee77375 Add some clarity and checks to cell_queue_append_packed_copy
It's not cool to have "circ may be NULL if use_stats false, but
otherwise we crash" as an undocumented API constraint. :)
2013-10-30 23:03:20 -04:00
Nick Mathewson
83d9d72bf3 Merge remote-tracking branch 'karsten/morestats5' 2013-10-30 22:53:05 -04:00
George Kadianakis
9e0ed8136a Fix an always-true assert in PT code. 2013-10-29 22:49:37 +00:00
Nick Mathewson
4b6f074df9 Merge remote-tracking branch 'public/bug5018'
Conflicts:
	src/or/entrynodes.c
2013-10-29 01:29:59 -04:00
David Fifield
2235d65240 Document that unneeded transports are ignored.
Suggested by Roger in
https://trac.torproject.org/projects/tor/ticket/5018#comment:11.
2013-10-29 01:06:03 -04:00
David Fifield
e6e6c245c8 Simplify transport_is_needed.
By Roger at
https://trac.torproject.org/projects/tor/ticket/5018#comment:11.
2013-10-29 01:05:57 -04:00
George Kadianakis
6f33dffec1 Only launch transport proxies that provide useful transports. 2013-10-29 01:05:56 -04:00
Karsten Loesing
2e0fad542c Merge branch 'morestats4' into morestats5
Conflicts:
	doc/tor.1.txt
	src/or/config.c
	src/or/connection.h
	src/or/control.c
	src/or/control.h
	src/or/or.h
	src/or/relay.c
	src/or/relay.h
	src/test/test.c
2013-10-28 12:09:42 +01:00
Karsten Loesing
e46de82c97 squash! Pass const uint64_t pointers, document array length.
Don't cast uint64_t * to const uint64_t * explicitly.  The cast is always
safe, so C does it for us.  Doing the cast explitictly can hide bugs if
the input is secretly the wrong type.

Suggested by Nick.
2013-10-28 10:48:18 +01:00
Nick Mathewson
7578606a22 Merge remote-tracking branch 'public/bug9934_nm' 2013-10-25 12:15:31 -04:00
Nick Mathewson
f249074e41 Merge remote-tracking branch 'Ryman/bug5605' 2013-10-25 12:03:42 -04:00