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3551 Commits

Author SHA1 Message Date
Nick Mathewson
b8e8910d60 Merge branch 'bug18686_025' into maint-0.2.8 2016-05-04 15:12:11 -04:00
Nick Mathewson
c7b9e0b8ed Report success when not terminating an already terminated process. 
Also, document the actual behavior and return values of
tor_terminate_process.

Fixes bug18686; bugfix on 0.2.3.9-alpha.
 2016-05-04 15:10:36 -04:00
Nick Mathewson
bff53aabce Remove redundant declarations of MIN 
Apparently somewhere along the line we decided that MIN might be
missing.

But we already defined it (if it was missing) in compat.h, which
everybody includes.

Closes ticket 18889.
 2016-04-25 15:28:58 -04:00
Nick Mathewson
26db1b65b9 Remove trunnel files from libor/libcrypto, since they are in libtrunnel. Found with modularity tool. 2016-04-20 13:39:07 -04:00
Nick Mathewson
520799f084 Merge branch 'handles_squashed' 2016-04-19 14:08:05 -04:00
Nick Mathewson
e015f7c9cc Basic 'handle' implementation and tests. 
This abstraction covers the case where one part of the program needs
to refer to another object that is allowed to disappear.
 2016-04-19 14:07:43 -04:00
Nick Mathewson
94e3555187 Merge remote-tracking branch 'public/lcov_excl' 2016-04-19 14:05:51 -04:00
Nick Mathewson
12e26a6e76 Disambiguate: Avoid defining two static functions called chunk_free_unchecked 2016-04-15 12:20:14 -04:00
Nick Mathewson
381dae43b6 Add branch prediction to util_bug.h, and fix a bug. 2016-04-15 09:12:03 -04:00
Nick Mathewson
05499b6ded Add timeouts to libor-event.a 2016-04-15 09:03:22 -04:00
Nick Mathewson
0e354ad459 Merge branch 'assert_nonfatal_squashed' 2016-04-14 16:25:21 -04:00
Nick Mathewson
a86ed1d717 Add an IF_BUG_ONCE macro, since that's a pretty common pattern too. 2016-04-14 16:25:07 -04:00
Nick Mathewson
532820b11c Add a BUG macro for usage in if checks. 2016-04-14 16:25:06 -04:00
Nick Mathewson
a885271c08 Add new tor_assert_nonfatal*() macros. 
Unlike tor_assert(), these macros don't abort the process.  They're
good for checking conditions we want to warn about, but which don't
warrant a full crash.

This commit also changes the default implementation for
tor_fragile_assert() to tor_assert_nonfatal_unreached_once().

Closes ticket 18613.
 2016-04-14 16:24:28 -04:00
Nick Mathewson
0630f1982d Add LCOV_EXCL* markers to crypto.c and crypto_s2k.c 
This marks some lines as unreachable by the unit tests, and as
therefore excluded from test coverage.

(Note: This convention is only for lines that are absolutely
unreachable.  Don't use it anywhere you wouldn't add a
tor_fragile_assert().)
 2016-04-12 21:13:33 -04:00
Nick Mathewson
eafcd7b0fc Merge branch 'maint-0.2.8' 2016-04-12 13:02:37 -04:00
Nick Mathewson
7babf33239 Merge remote-tracking branch 'public/bug18716_027' into maint-0.2.8 2016-04-12 13:02:02 -04:00
Nick Mathewson
39c057d45a memarea: Don't assume that sizeof(ulong) >= sizeof(void*). 
Fixes bug 18716; bugfix on 0.2.1.1-alpha where memarea.c was
introduced.  Found by wbenny.
 2016-04-07 11:10:14 -04:00
Nick Mathewson
b46d126e64 Merge branch 'maint-0.2.8' 2016-04-05 10:38:53 -04:00
Nick Mathewson
967491f156 Only define NEW_THREAD_API when not building with LibreSSL. 2016-04-05 10:38:15 -04:00
Nick Mathewson
16f7851807 Merge remote-tracking branch 'teor/bug18720' 2016-04-05 10:08:11 -04:00
Nick Mathewson
6720628c97 Merge branch 'maint-0.2.8' 2016-04-05 10:06:18 -04:00
Yawning Angel
5db21f8f81 OpenSSL 1.1.0-pre5-dev and later made BIO opaque. 
Detect newer versions and fix our TLS code to use the new API.
 2016-04-05 10:03:24 -04:00
Yawning Angel
6729d7328c OpenSSL 1.1.0-pre4 and later(?) have a new "thread API". 
It appears that setting the various callbacks is no longer required, so
don't.
 2016-04-05 10:03:24 -04:00
teor (Tim Wilson-Brown)
6a2b4db4f9 Fix a comment typo in compat.h 2016-04-05 13:45:37 +10:00
Nick Mathewson
7865402106 Move tor_assert implementation into its own header/module. 2016-04-04 11:06:04 -04:00
Nick Mathewson
055a7a198a Rename tor_dup_addr to tor_addr_to_str_dup. 
Patch from icanhasaccount; closes 18462.
 2016-03-28 16:36:51 -04:00
Nick Mathewson
4895d8288c Do not treat "DOCDOC" as doxygen. 2016-03-26 10:11:45 -04:00
Nick Mathewson
cc90b57b04 add a little documentation to memarea. (I have been testing a tool.) 2016-03-26 10:09:19 -04:00
Nick Mathewson
c0568a89d9 Whitespace fixes 2016-03-26 09:54:31 -04:00
Nick Mathewson
dd572dac34 Fix all doxygen warnings (other than missing docs) 2016-03-26 09:53:12 -04:00
Nick Mathewson
4bb44f2c15 Only check in-boundsness of seconds when time_t is smaller than i64 
Otherwise coverity complains that we're checking an whether an int64 is
less than INT64_MIN, which of course it isn't.

Fixes CID 1357176. Not in any released Tor.
 2016-03-25 16:46:02 -04:00
Nick Mathewson
6256c61d95 Merge branch 'timegm_overflow_squashed' 2016-03-24 10:18:00 -04:00
teor (Tim Wilson-Brown)
e71e8e005a Avoid overflow in tor_timegm on 32 bit platforms due to year 2038 2016-03-24 10:17:48 -04:00
Nick Mathewson
7123e9706e Repair build when no sandbox support is enabled. 2016-03-22 13:18:18 -04:00
Nick Mathewson
ca8423a703 Merge remote-tracking branch 'public/bug18253' 2016-03-22 10:08:50 -04:00
Nick Mathewson
a17537a238 Fix an fd leak in check_private_dir(). 
The fd would leak when the User wasn't recogniezed by
getpwnam(). Since we'd then go on to exit, this wasn't a terribad
leak, but it's still not as nice as no leak at all.

CID 1355640; bugfix on no released Tor.
 2016-03-22 08:29:51 -04:00
Nick Mathewson
b48f8a8114 Fix whitespace. 2016-03-15 09:21:29 -04:00
Nick Mathewson
c9899ee640 Merge remote-tracking branch 'weasel/bug18458' 2016-03-15 09:18:24 -04:00
Nick Mathewson
4b02af452d Merge branch 'bug15221_027' 2016-03-14 14:10:47 -04:00
Nick Mathewson
dd7c999617 Make unix sockets work with the linux seccomp2 sandbox again 
I didn't want to grant blanket permissions for chmod() and chown(),
so here's what I had to do:
   * Grant open() on all parent directories of a unix socket
   * Write code to allow chmod() and chown() on a given file only.
   * Grant chmod() and chown() on the unix socket.
 2016-03-14 14:07:02 -04:00
Nick Mathewson
725e0c76e3 Permit setrlimit, prlimit, prlimit64 calls. 
We call setrlimit under some circumstances, and it can call prlimit
and prlimit64 under the hood.

Fixes bug 15221.
 2016-03-14 13:21:16 -04:00
Nick Mathewson
36ad65a7d1 When using open() to make sure we created a dir, close the fd afterwards 
Found by coverity. Not in any released Tor. Fixes CID 1355640.

Also, don't check for fd correctness with assert(fd).  You need to
assert (fd >= 0).
 2016-03-14 13:03:44 -04:00
teor (Tim Wilson-Brown)
9f98e6535a Correctly duplicate addresses in get_interface_address6_list 2016-03-04 18:42:27 +01:00
teor (Tim Wilson-Brown)
2627299ef0 Avoid freeing an uninitialised pointer in get_interface_addresses_ioctl 2016-03-04 18:41:49 +01:00
Peter Palfrader
1ef7df551d First RelaxDirModeCheck implementation 2016-03-01 17:08:14 +01:00
Nick Mathewson
9fc472e1a8 clean/extend some module docs, including fix from #18403 2016-02-28 17:57:47 +01:00
Nick Mathewson
57699de005 Update the copyright year. 2016-02-27 18:48:19 +01:00
Nick Mathewson
f4864d37ec It appears I added an empty file by mistake. 2016-02-27 18:25:51 +01:00
Nick Mathewson
23f8c9b32f Add a brief file-level description for everything in src/common 2016-02-27 18:19:57 +01:00
Nick Mathewson
d5cbc21ad1 Fix an unused-variable warning 2016-02-27 10:20:15 +01:00
Nick Mathewson
0a276947ba Merge branch 'bug18392' 2016-02-27 10:17:51 +01:00
Nick Mathewson
7255b1121d Fix check_private_dir() to work on Windows again. 
On windows, you cannot open() a directory.  So for Windows we should
just take our previous stat-based approach.

Closes bug 18392; bug not in any released Tor.
 2016-02-25 13:34:12 -05:00
Nick Mathewson
7a782820e9 Make the sandbox work again with chutney. 
Previously, we had a problem due to the check_private_dir() rewrite.

Bug not in any released Tor.
 2016-02-24 16:01:24 -05:00
Nick Mathewson
73c433a48a Remove the freelist from memarea.c 
This is in accordance with our usual policy against freelists,
now that working allocators are everywhere.

It should also make memarea.c's coverage higher.

I also doubt that this code ever helped performance.
 2016-02-24 14:32:09 -05:00
Nick Mathewson
a7f303a481 Merge branch 'maint-0.2.7' 2016-02-23 14:05:54 -05:00
Nick Mathewson
67e5d49d8a Make clang asan work with FORTIFIED_SOURCE again. 
Short version: clang asan hates the glibc strcmp macro in
bits/string2.h if you are passing it a constant string argument of
length two or less.  (I could be off by one here, but that's the
basic idea.)

Closes issue 14821.
 2016-02-23 14:05:34 -05:00
Nick Mathewson
48c1c028ca Merge branch 'bug18296_squashed' 2016-02-23 07:32:18 -05:00
Nick Mathewson
21f72990db Simple fix for integer overflow in smartlist_heapify. 2016-02-23 07:31:58 -05:00
Nick Mathewson
882e0fbd76 Merge branch 'bug17795' 2016-02-23 07:25:12 -05:00
Nick Mathewson
e202f3a1ca Fix an erroneous renaming 
Did you know that crypto_digest_all is a substring of
crypto_digest_alloc_bytes()?  Hence the mysterious emergence of
"crypto_common_digestsoc_bytes".

Next time I should use the \b assertion in my regexen.

Spotted by Mike.
 2016-02-23 07:22:53 -05:00
Andrea Shepard
cda2381789 Appease make check-spaces 2016-02-23 05:07:29 +00:00
cypherpunks
1e9950847c Define O_NOFOLLOW on platforms that do not have it 
Fixes #18339
 2016-02-22 15:28:24 -05:00
Nick Mathewson
5cd6c577df Merge branch 'bug17852_revised' 2016-02-16 11:34:06 -05:00
Jeremy
f48c607fd9 Harden check_private_dir() to remove any potential race. 
Remove any potential race between stat() and chmod().
Replace stat() with fstat().
Replace chmod() with fchmod()
 2016-02-16 11:21:46 -05:00
Jeremy
4e19133dcc src/common/util.c:expand_filename() - Perhaps use GetFullPathName() as a form of input validation on the filename argument. 2016-02-16 11:21:45 -05:00
Nick Mathewson
fed8c5199a Merge branch 'check_log_mutex_uncherrypicked' 2016-02-11 13:41:31 -05:00
Nick Mathewson
7788ee43e5 Merge branch 'maint-0.2.7' 2016-02-11 13:04:43 -05:00
Nick Mathewson
be6174f8f6 Merge branch 'maint-0.2.6' into maint-0.2.7 2016-02-11 13:01:46 -05:00
Nick Mathewson
740421af19 Merge branch 'maint-0.2.5' into maint-0.2.6 2016-02-11 13:00:25 -05:00
Nick Mathewson
ce289e2cb5 Merge branch 'maint-0.2.4' into maint-0.2.5 2016-02-11 12:55:40 -05:00
Nick Mathewson
c2fd648469 Make ensure_capacity a bit more pedantically correct 
Issues noted by cypherpunks on #18162
 2016-02-11 12:54:52 -05:00
Nick Mathewson
ba2be81fc3 Merge remote-tracking branch 'teor/feature17840-v11-merged-v2' 2016-02-11 12:20:20 -05:00
Nick Mathewson
69c47ab5fd Merge remote-tracking branch 'sebastian/bug18242' 2016-02-10 15:38:52 -05:00
Nick Mathewson
4dc8dc4b89 Merge remote-tracking branch 'public/bug18184' 2016-02-10 15:36:48 -05:00
Nick Mathewson
a8d6989589 Whitespace fixes 2016-02-10 15:35:46 -05:00
Nick Mathewson
9746aed2ba Another automated rename. 
Also simplify crypto_common_digests() to have no loop.
 2016-02-10 15:32:12 -05:00
Nick Mathewson
8a4bba06d2 Rename crypto_digest_all, and digests_t. 
They are no longer "all" digests, but only the "common" digests.

Part of 17795.

This is an automated patch I made with a couple of perl one-liners:

  perl -i -pe 's/crypto_digest_all/crypto_common_digests/g;' src/*/*.[ch]
  perl -i -pe 's/\bdigests_t\b/common_digests_t/g;' src/*/*.[ch]
 2016-02-10 15:28:19 -05:00
Nick Mathewson
2d879bd39f Document port_out argument to tor_addr_from_sockaddr 2016-02-06 15:34:47 -05:00
Nick Mathewson
0f5f6b8a41 Merge remote-tracking branch 'yawning/bug18221' 2016-02-06 15:30:22 -05:00
Nick Mathewson
31a27729b9 Fix spaces. 2016-02-06 14:00:24 -05:00
Nick Mathewson
03371e3d3c Merge branch 'cleaned_aes_crypt' 2016-02-06 13:54:09 -05:00
Malek
a9cd291753 Removed aes_crypt, left only aes_crypt_inplace. Removed should_use_openssl_CTR, was used for openssl 1.0.0 bug. 2016-02-06 13:38:11 -05:00
Hassan Alsibyani
edd93f9de8 changing output of crypto_cipher_crypt_inplace from int to void 2016-02-06 12:14:39 -05:00
teor (Tim Wilson-Brown)
add8acf428 Avoid calling log functions in logv when SMARTLIST_DEBUG is defined 2016-02-05 14:14:17 +11:00
teor (Tim Wilson-Brown)
db72b509d1 Check that the log mutex is initialised before trying to lock or unlock it 2016-02-05 14:08:58 +11:00
Nick Mathewson
af116081f9 Make the no-assertions-during-coverage check into a configure option 
Closes ticket 18242.

The rationale here is that I like having coverage on by default in my
own working directory, but I always want assertions turned on unless
I'm doing branch coverage specifically.
 2016-02-04 12:51:52 -05:00
Nick Mathewson
c595f6d25e Add an assertion to tor_libevent_get_base() 
Closes ticket 18241.
 2016-02-04 12:37:00 -05:00
Nick Mathewson
fa52b6f075 Make tortls unit tests pass with LibreSSL. 
Part of the fix for 17921.
 2016-02-03 11:31:57 -05:00
Nick Mathewson
27582325dc Make Tor build happily with OpenSSL master and libressl. 
Also tested with 1.0.0t and 1.0.2f.

Closes ticket 19784.

Closes most of 17921. (Still need to make some tests pass.)
 2016-02-03 11:13:12 -05:00
Yawning Angel
c625ab9f5a Validate the DH parameters for correctness. 
We use sensible parameters taken from common sources, and no longer
have dynamic DH groups as an option, but it feels prudent to have
OpenSSL validate p and g at initialization time.
 2016-02-02 22:03:48 +00:00
Nick Mathewson
5f7df92571 Remove support for unsigned time_t 
We've never actually tested this support, and we should probably assume
it's broken.

To the best of my knowledge, only OpenVMS has this, and even on
OpenVMS it's a compile-time option to disable it.  And I don't think
we build on openvms anyway.  (Everybody else seems to be working
around the 2038 problem by using a 64-bit time_t, which won't expire
for roughly 292 billion years.)

Closes ticket 18184.
 2016-01-29 09:18:59 -05:00
teor (Tim Wilson-Brown)
c4cb4706c9 Merge branch 'feature17840-v11-squashed' into feature17840-v11-merged 
Conflicts:
	src/or/directory.c
	src/test/test_routerlist.c

Fix minor conflicts.
 2016-01-29 07:37:06 +11:00
teor (Tim Wilson-Brown)
4460feaf28 Fix *_get_all_orports to use ipv6_orport 
node_get_all_orports and router_get_all_orports incorrectly used or_port
with IPv6 addresses. They now use ipv6_orport.

Also refactor and remove duplicated code.
 2016-01-29 07:13:56 +11:00
Nick Mathewson
39b597c2fd Restrict the meaning of digests_t to sha1+sha256. 
This saves CPU and RAM when handling consensuses and x509 certs.

Closes ticket 17795; bug not in any released tor.
 2016-01-27 13:10:17 -05:00
Nick Mathewson
bca7083e82 avoid integer overflow in and around smartlist_ensure_capacity. 
This closes bug 18162; bugfix on a45b131590, which fixed a related
issue long ago.

In addition to the #18162 issues, this fixes a signed integer overflow
in smarltist_add_all(), which is probably not so great either.
 2016-01-27 12:32:41 -05:00
Nick Mathewson
39a86185c8 Correct further grammatical errors in tor comments 
Avoid using a pronoun where it makes comments unclear.
Avoid using gender for things that don't have it.
Avoid assigning gender to people unnecessarily.
 2016-01-27 08:51:28 -05:00
Nick Mathewson
f557a7f327 Merge branch 'maint-0.2.7' 2016-01-19 08:30:48 -05:00
Nick Mathewson
534a0ba59b Merge branch 'maint-0.2.6' into maint-0.2.7 2016-01-19 08:30:39 -05:00
Nick Mathewson
e2efa9e321 Refine the memwipe() arguments check for 18089 a little more. 
We still silently ignore
     memwipe(NULL, ch, 0);
and
     memwipe(ptr, ch, 0);  /* for ptr != NULL */

But we now assert on:
     memwipe(NULL, ch, 30);
 2016-01-19 08:28:58 -05:00
Nick Mathewson
ab58f60321 Merge branch 'maint-0.2.7' 2016-01-18 20:03:28 -05:00
Nick Mathewson
8335b1f9a9 Merge branch 'maint-0.2.6' into maint-0.2.7 2016-01-18 20:00:16 -05:00
teor (Tim Wilson-Brown)
db81565331 Make memwipe() do nothing when passed a NULL pointer or zero size 
Check size argument to memwipe() for underflow.

Closes bug #18089. Reported by "gk", patch by "teor".
Bugfix on 0.2.3.25 and 0.2.4.6-alpha (#7352),
commit 49dd5ef3 on 7 Nov 2012.
 2016-01-18 19:58:07 -05:00
Nick Mathewson
f47d4af04c Whitespace cleanup 2016-01-15 10:57:03 -05:00
Ola Bini
5c1c117b8e
Revert my addition of callback cleaner and instead use existing functionality for temporary log files 2016-01-13 10:35:06 -05:00
Ola Bini
0bfa616e2e
Remove a small memory leak in log callback setup 2016-01-13 10:35:05 -05:00
Ola Bini
5edd431d92
Add tests for options_act 2016-01-13 10:31:13 -05:00
Nick Mathewson
1d6dd288e1 Try a little harder to only use SecureZeroMemory when it's present 
We could be using AC_CHECK_FUNC_DECL too, but it shouldn't be needed.
 2016-01-11 09:02:42 -05:00
Nick Mathewson
d10ea49588 Merge remote-tracking branch 'rl1987/feature17950' 2016-01-11 08:54:51 -05:00
rl1987
fd26c1d994 Re-add the removed address family check. 2016-01-09 15:03:54 +01:00
Nick Mathewson
5b5abd8c03 Merge commit '110765f5564a588c5f019d32b5e6f66cc7806c41' 2016-01-08 15:08:28 -08:00
Nick Mathewson
a1019b82c1 Merge remote-tracking branch 'public/feature16794_more' 2016-01-08 14:54:51 -08:00
cypherpunks
4c10a9c445 Simplify micro-revision dependency rules 
The Automake variable OBJEXT is automatically adjusted to the correct
object file extension for the target platform.
 2016-01-08 13:27:36 -08:00
rl1987
fb373a9ef6 On win32, use SecureZeroMemory() to securely wipe buffers. 
{Also tweak the comments. -nickm)
 2016-01-07 14:25:31 -08:00
Nick Mathewson
3783046f3b Use memset_s or explicit_bzero when available. 2016-01-07 12:53:24 -08:00
Nick Mathewson
8d6aafbb4a Merge remote-tracking branch 'teor/comments-20151213' 2016-01-07 12:50:10 -08:00
dana koch
be841f77aa Compatibility defines should be used for LibreSSL. 
LibreSSL doesn't use OpenSSL_version (it uses the older SSLeay_version
API), but it reports a major version number as 2 in
OPENSSL_VERSION_NUMBER. Instead of fudging the version check, for now,
let's just check if we're using LibreSSL by checking the version number
macro exists, and use compatibility defines unconditionally when we
detect LibreSSL.
 2016-01-07 12:48:59 -08:00
Nick Mathewson
77bc95cb5e Merge remote-tracking branch 'public/17826_redux' 2016-01-07 09:52:09 -08:00
rl1987
110765f556 Use get_interface6_via_udp_socket_hack() properly in _list(). 
When _list() is called with AF_UNSPEC family and fails to enumerate
network interfaces using platform specific API, have it call
_hack() twice to find out IPv4 and/or IPv6 address of a machine Tor
instance is running on. This is correct way to handle this case
because _hack() can only be called with AF_INET and AF_INET6 and
does not support any other address family.
 2016-01-06 14:47:35 +01:00
rl1987
680d0701e5 Tweak ioctl case. 2016-01-06 11:47:31 +01:00
rl1987
44497e9ebc Add family argument to get_interface_addresses_raw (and subfunctions). 2016-01-03 15:35:45 +01:00
teor (Tim Wilson-Brown)
1949908d13 Fix a typo in the comment for tor_addr_port_split 2016-01-03 17:34:41 +11:00
Nick Mathewson
603110aa1d Merge branch 'feature17796_squashed' 2015-12-29 09:48:39 -05:00
Nick Mathewson
a12c5f462f Remove the (now-unused) digest_algorithm_bitfield_t 2015-12-29 09:47:04 -05:00
Nick Mathewson
488cdee5e7 When allocating a crypto_digest_t, allocate no more bytes than needed 
Previously we would allocate as many bytes as we'd need for a
keccak--even when we were only calculating SHA1.

Closes ticket 17796.
 2015-12-29 09:47:04 -05:00
Nick Mathewson
bc2cd0ff2b Use timingsafe_memcmp() where available. 
See ticket 17944; patch from "logan".
 2015-12-29 09:43:01 -05:00
Nick Mathewson
263f6d11fd Mark all object files built based on micro-revision.i as depending on it 
Fixes make -j for some users; fixes bug 17826.

Bugfix on 0.2.5.1, when we started building testing versions of all
the object files.
 2015-12-26 13:43:13 -05:00
Nick Mathewson
6365859825 Disable the dynlock functions we were giving openssl. 
OpenSSL doesn't use them, and fwict they were never called. If some
version of openssl *does* start using them, we should test them before
we turn them back on.

See ticket 17926
 2015-12-23 09:58:36 -05:00
Nick Mathewson
d7c841f467 Unit tests for crypto_force_rand_ssleay(). 
Part of 16794.
 2015-12-23 09:58:08 -05:00
Nick Mathewson
b18f533cf0 Always test both ed25519 backends. 
Part of #16794
 2015-12-23 09:16:26 -05:00
Nick Mathewson
4ec0f8531e Add an unreachable line to make the compiler happy 2015-12-22 10:27:04 -05:00
Nick Mathewson
bb19799a49 Appease "make check-spaces" 2015-12-20 15:00:20 -05:00
Nick Mathewson
7b0cbf22c0 Merge remote-tracking branch 'yawning/feature17783_take2' 2015-12-20 14:10:52 -05:00
Yawning Angel
9467485517 Add crypto_xof_t and assorted routines, backed by SHAKE256. 
This is an eXtendable-Output Function with the following claimed
security strengths against *all* adversaries:

 Collision: min(d/2, 256)
 Preimage: >= min(d, 256)
 2nd Preimage: min(d, 256)

 where d is the amount of output used, in bits.
 2015-12-19 22:45:21 +00:00
Yawning Angel
687f9b3bd7 Add the SHA-3 hash functions to common/crypto.h. 
* DIGEST_SHA3_[256,512] added as supported algorithms, which do
   exactly what is said on the tin.
 * test/bench now benchmarks all of the supported digest algorithms,
   so it's possible to see just how slow SHA-3 is, though the message
   sizes could probably use tweaking since this is very dependent on
   the message size vs the SHA-3 rate.
 2015-12-19 22:44:05 +00:00
Nick Mathewson
14c9b99051 mark a variable unused to fix a warning. 2015-12-18 13:16:40 -05:00
cypherpunks
59e5bf7e2a Remove an extra space in backtrace version string 2015-12-18 13:09:05 -05:00
Nick Mathewson
0c5d8d9a4f Move some more code inside a tortls.c ifdef to fix deadcode warning. 2015-12-18 11:11:42 -05:00
Nick Mathewson
6b5b1a02d4 Fix a coverity NULL-pointer deref warning in the tortls tests. 
Also, make our cert validation code more NULL-resistant.

This is CID 1327891.
 2015-12-18 10:25:15 -05:00
Nick Mathewson
9e2c4ee557 Fix some dead code in tortls.c 
If SSL_CIPHER_find exists, then we won't use either of the two
kludges that would replace it.

Found by Coverity; fixes CID 1340256.
 2015-12-18 10:04:01 -05:00
cypherpunks
759e6f8afb Improve warning message 
The user parameter is not checked so we do not know the user has been
specified.
 2015-12-17 08:34:27 -05:00
Nick Mathewson
3317cd3a1f Merge branch 'maint-0.2.7' 2015-12-16 09:24:40 -05:00
Nick Mathewson
33b5bfb948 Don't call pthread_condattr_setclock() unless it exists 
Fixes bug 17819; bugfix on 0.2.6.3-alpha (specifically, d684dbb0).
 2015-12-16 09:23:44 -05:00
Nick Mathewson
a5da27cb35 Merge branch 'maint-0.2.7' 2015-12-16 09:07:11 -05:00
Nick Mathewson
784e9fff9b ... and fix another backtrace_symbols_fd call in sandbox.c 2015-12-16 09:05:49 -05:00
Nick Mathewson
e0aa4f837c ... and fix the linux backtrace_symbols{,_fd} calls 2015-12-16 09:05:18 -05:00
Nick Mathewson
bb23ad3e47 Merge remote-tracking branch 'teor/feature17863' 2015-12-16 08:48:28 -05:00
Nick Mathewson
c4df0c9f52 ... and fix the linux backtrace_symbols{,_fd} calls 2015-12-16 08:20:53 -05:00
teor (Tim Wilson-Brown)
e54e71fb6b Limit IPv6 mask bits to 128 2015-12-16 08:51:34 +11:00
Nick Mathewson
aba39ea390 Merge branch 'feature8195_small_squashed' 2015-12-15 13:11:06 -05:00
Nick Mathewson
405a8d3fb4 Update KeepCapabilities based on comments from asn 
* The option is now KeepBindCapabilities
* We now warn if the user specifically asked for KeepBindCapabilities
  and we can't deliver.
* The unit tests are willing to start.
* Fewer unused-variable warnings.
* More documentation, fewer misspellings.
 2015-12-15 13:10:57 -05:00
Nick Mathewson
e8cc839e41 Add ability to keep the CAP_NET_BIND_SERVICE capability on Linux 
This feature allows us to bind low ports when starting as root and
switching UIDs.

Based on code by David Goulet.

Implement feature 8195
 2015-12-15 13:10:57 -05:00
Nick Mathewson
a7d44731d9 Merge remote-tracking branch 'teor/feature4483-v10-squashed' 2015-12-15 12:57:57 -05:00
teor (Tim Wilson-Brown)
35bbf2e4a4 Prop210: Add schedules for simultaneous client consensus downloads 
Prop210: Add attempt-based connection schedules

Existing tor schedules increment the schedule position on failure,
then retry the connection after the scheduled time.

To make multiple simultaneous connections, we need to increment the
schedule position when making each attempt, then retry a (potentially
simultaneous) connection after the scheduled time.

(Also change find_dl_schedule_and_len to find_dl_schedule, as it no
longer takes or returns len.)

Prop210: Add multiple simultaneous consensus downloads for clients

Make connections on TestingClientBootstrapConsensus*DownloadSchedule,
incrementing the schedule each time the client attempts to connect.

Check if the number of downloads is less than
TestingClientBootstrapConsensusMaxInProgressTries before trying any
more connections.
 2015-12-16 04:37:49 +11:00
Nick Mathewson
fec5aa75f4 Merge branch 'maint-0.2.7' 2015-12-15 11:55:46 -05:00
cypherpunks
07cca627ea Fix backtrace compilation on FreeBSD 
On FreeBSD backtrace(3) uses size_t instead of int (as glibc does). This
causes integer precision loss errors when we used int to store its
results.

The issue is fixed by using size_t to store the results of backtrace(3).

The manual page of glibc does not mention that backtrace(3) returns
negative values. Therefore, no unsigned integer wrapping occurs when its
result is stored in an unsigned data type.
 2015-12-15 11:52:00 -05:00
cypherpunks
e91ccbb4f6 Remove obsolete INLINE preprocessor definition 
The INLINE keyword is not used anymore in favor of inline.

Windows only supports __inline so an inline preprocessor definition is
still needed.
 2015-12-15 11:34:00 -05:00
cypherpunks
824a6a2a90 Replace usage of INLINE with inline 
This patch was generated using;

  sed -i -e "s/\bINLINE\b/inline/" src/*/*.[ch] src/*/*/*.[ch]
 2015-12-15 11:34:00 -05:00
Nick Mathewson
f3ed5ec0ca Fix a pair of dead assignments 2015-12-11 09:35:43 -05:00
Jamie Nguyen
08c7ceb5df Permit filesystem group to be root 2015-12-10 20:00:06 -05:00
Nick Mathewson
4d13cc69ce make stack-protector happy 2015-12-10 11:50:02 -05:00
Nick Mathewson
390d3fa3af add a static 2015-12-10 09:43:55 -05:00
Nick Mathewson
ce3b7ddb54 improve a comment in memwipe 2015-12-10 09:03:47 -05:00
Nick Mathewson
7186e2a943 Merge remote-tracking branch 'public/feature17694_strongest_027' 2015-12-10 09:02:10 -05:00
Nick Mathewson
631e3517e3 Mark a couple more arguments as unused. 2015-12-09 11:58:32 -05:00
Nick Mathewson
3843c6615c Small cleanups and comment fixes to rng functions. 2015-12-09 09:15:57 -05:00
Nick Mathewson
3a69fcb01f try a little harder with getrandom types to avoid warnings 2015-12-09 08:31:29 -05:00
Nick Mathewson
0df014edad mark a variable unused. 2015-12-08 17:17:17 -05:00
Nick Mathewson
b701b7962b Fix comment switcheroo. Spotted by skruffy 2015-12-08 12:53:51 -05:00
Nick Mathewson
7f074e08d8 Merge branch 'feature13696_squashed' 2015-12-08 12:35:26 -05:00
Yawning Angel
353c71516e Add support for getrandom() and getentropy() when available 
Implements feature #13696.
 2015-12-08 12:34:53 -05:00
Nick Mathewson
2259de0de7 Always hash crypto_strongest_rand() along with some prng 
(before using it for anything besides feeding the PRNG)

Part of #17694
 2015-12-08 10:54:42 -05:00
teor (Tim Wilson-Brown)
021958934f Consistently ignore multicast in internal reject private exit policies 
Consistently ignore multicast addresses when automatically
generating reject private exit policies.

Closes ticket 17763. Bug fix on 10a6390deb,
not in any released version of Tor. Patch by "teor".
 2015-12-07 14:46:19 +11:00
Jeremy
b3639c8291 src/common/compat.c:tor_vasprintf() - vsnprintf() was properly checked but tor_vsnprintf() available so why not use it? 2015-12-01 13:00:58 -05:00
Jeremy
fcc6541fde src/common/compat.c:tor_vasprintf() - changed vsnprintf() to tor_vsnprintf() which ensures string is null terminated. 2015-12-01 12:27:29 -05:00
Nick Mathewson
eedef41944 use sockaddr_storage for stack-allocated sockets in ersatz socketpair 2015-11-27 11:52:59 -05:00
Nick Mathewson
f108be7c25 Make SIZEOF_SOCKADDR return socklen_t to avoid bad compares. 2015-11-27 11:48:54 -05:00
Nick Mathewson
a45aacd2e2 Use uint16_t, not in_port_t (which does not exist on Windows). See #17638. 2015-11-27 11:39:03 -05:00
Nick Mathewson
e5754c42d1 Merge branch 'bug17686_v2_027' 2015-11-25 22:33:49 -05:00
Nick Mathewson
1cfa2bc859 Fix documentation for crypto_rand* 2015-11-25 22:29:59 -05:00
Nick Mathewson
ddcbe26474 Now that crypto_rand() cannot fail, it should return void. 2015-11-25 22:29:59 -05:00
Nick Mathewson
10fdee6285 Add crypto-initializer functions to those whose return values must be checked 2015-11-25 22:29:59 -05:00
Nick Mathewson
dedea28c2e Make crypto_seed_rng() and crypto_rand() less scary. 
These functions must really never fail; so have crypto_rand() assert
that it's working okay, and have crypto_seed_rng() demand that
callers check its return value.  Also have crypto_seed_rng() check
RAND_status() before returning.
 2015-11-25 22:29:59 -05:00
teor (Tim Wilson-Brown)
b1b8f7982e Check the return value of HMAC in crypto.c and assert on error 
Fixes bug #17658; bugfix on commit in fdbb9cdf74 (11 Oct 2011)
in tor version 0.2.3.5-alpha-dev.
 2015-11-26 10:46:36 +11:00
Nick Mathewson
45caeec9a0 Merge remote-tracking branch 'teor/comments-20151123' 2015-11-25 09:08:15 -05:00
Nick Mathewson
7194d3d957 Tweak gtank's sha512 patch a little 2015-11-25 09:04:17 -05:00
George Tankersley
695412302b implement teor's comments 2015-11-24 02:17:37 +00:00
George Tankersley
ff54cc8481 add SHA512 support to crypto 2015-11-24 01:34:28 +00:00
teor (Tim Wilson-Brown)
5b2adfb3d4 Fix comments to describe actual return values (crypto.c) 2015-11-23 20:31:57 +11:00
teor (Tim Wilson-Brown)
84d1373ba0 Fix typo in comment on crypto_add_spaces_to_fp 2015-11-23 18:59:11 +11:00
teor (Tim Wilson-Brown)
604d3ee48d Comment only: crypto_seed_rng no longer has a "startup" parameter 2015-11-23 10:26:07 +11:00
Nick Mathewson
cbc1b8a4f7 fix "make check-spaces" 2015-11-20 10:52:56 -05:00
teor (Tim Wilson-Brown)
53ec840bdf Make tor_ersatz_socketpair work on IPv6-only systems 
(But it won't work on some systems without IPv4/IPv6 localhost
(some BSD jails) by design, to avoid creating sockets on routable
IP addresses. However, those systems likely have the AF_UNIX socketpair,
which tor prefers.)

Fixes bug #17638; bugfix on a very early tor version,
earlier than 22dba27d8d (23 Nov 2004) / svn:r2943.

Patch by "teor".
 2015-11-19 19:08:22 +11:00
teor (Tim Wilson-Brown)
878b5738c2 Update comments in get_interface_addresses_ioctl 
Comment-only change noting platforms that can return IPv6
addresses from SIOCGIFCONF (or SIOCGLIFCONF).
 2015-11-18 23:30:25 +11:00
Nick Mathewson
7a940fac1c appease check-spaces 2015-11-13 13:46:47 -05:00
Nick Mathewson
d467227323 Merge remote-tracking branch 'public/ticket11150_client_only' 2015-11-13 09:58:16 -05:00
Nick Mathewson
accb726db6 Remove a little duplicated code in TAP key expansion 
patch from pfrankw; closes 17587.
 2015-11-13 09:46:32 -05:00
Nick Mathewson
d20a3d07e3 Merge branch 'karsten_bug13192_026_03_teor' 2015-11-12 11:40:58 -05:00
Nick Mathewson
1f7ba115a4 Rename cast_double_to_int64 to clamp_double_to_int64 2015-11-12 11:33:48 -05:00
Nick Mathewson
0694263b75 Make round_to_next_multiple_of always round upwards. 
Yes, even if it has to return a non-multiple.  This prevents us from
ever having a bug where we try to use it for allocation, and under-allocate.
 2015-11-12 11:32:14 -05:00