Commit Graph

787 Commits

Author SHA1 Message Date
Karsten Loesing
dad5eb7e1f Tweak teor's and dgoulet's #13192 patches.
- Rewrite changes file.
 - Avoid float comparison with == and use <= instead.
 - Add teor's tor_llround(trunc(...)) back to silence clang warnings.
 - Replace tt_assert() with tt_i64_op() and friends.
 - Fix whitespace and a comment.
2015-05-06 18:05:16 +10:00
teor
09cac24373 Handle edge cases in the round_*_to_next_multiple_of functions
Consistently check for overflow in round_*_to_next_multiple_of.

Check all round_*_to_next_multiple_of functions with expected values.
Check all round_*_to_next_multiple_of functions with maximal values.

Related to HS stats in #13192.
2015-05-06 18:05:15 +10:00
teor
6d54bdbdcf Handle edge cases in laplace functions
Avoid division by zero.
Avoid taking the log of zero.
Silence clang type conversion warnings using round and trunc.
The existing values returned by the laplace functions do not change.

Add tests for laplace edge cases.
These changes pass the existing unit tests without modification.

Related to HS stats in #13192.
2015-05-06 18:05:15 +10:00
Yawning Angel
38c8e0bfc5 Fix the windows test failure caused by the #15435 changes. 2015-04-02 03:25:51 +00:00
Nick Mathewson
aa7b792250 Merge remote-tracking branch 'yawning/feature15435' 2015-04-01 13:34:14 -04:00
Yawning Angel
fa81508eb2 Use prctl() to have the kernel SIGTERM background processes on exit.
This uses a Linux-ism to attempt to always clean up background processes
if possible.  Note that it is not a catch-all, in that executables with
suid/sgid or elevated capabilities will have the prctl() attribute
stripped as part of the execve().

Resolves ticket 15471.
2015-03-26 14:56:14 +00:00
Yawning Angel
fda61e030e Implement "TOR_PT_EXIT_ON_STDIN_CLOSE".
Background processes spawned by Tor now will have a valid stdin.
Pluggable transports can detect this behavior with the aformentioned
enviornment variable, and exit if stdin ever gets closed.
2015-03-26 12:55:12 +00:00
Yawning Angel
cbd26157c5 Remove tor_strclear(), and replace previous calls with memwipe(). 2015-02-17 18:53:33 +00:00
Arthur Edelstein
cb714d896c Bug #8405: Report SOCKS username/password in CIRC status events
Introduces two new circuit status name-value parameters: SOCKS_USERNAME
and SOCKS_PASSWORD. Values are enclosing in quotes and unusual characters
are escaped.

Example:

    650 CIRC 5 EXTENDED [...] SOCKS_USERNAME="my_username" SOCKS_PASSWORD="my_password"
2015-01-28 12:02:15 -05:00
George Kadianakis
45bc5a0743 Restrict sample values of the Laplace distribution to int64_t.
This helps avoid undefined behavior from casting big double values to
int64_t. Fixes #14090.
2015-01-15 14:43:58 +00:00
Nick Mathewson
2edfdc02a2 Merge remote-tracking branch 'teor/bug13111-empty-key-files-fn-empty' 2015-01-12 14:06:14 -05:00
Nick Mathewson
53ecfba284 Merge remote-tracking branch 'teor/fix-typos' 2015-01-10 16:00:12 -05:00
teor
f8ffb57bc4 Merge branch 'master' of https://git.torproject.org/tor into bug13111-empty-key-files-fn-empty
Conflicts:
  src/or/connection_edge.c
Merged in favour of origin.
2015-01-10 17:20:06 +11:00
teor
c200ab46b8 Merge branch 'bug14001-clang-warning' into bug13111-empty-key-files-fn-empty
Conflicts:
  src/or/router.c
Choose newer comment.
Merge changes to comment and function invocation.
2015-01-10 16:34:10 +11:00
teor
5ac26cb7c7 Fix a minor misspelling in util.c 2015-01-10 15:52:55 +11:00
Nick Mathewson
cb54cd6745 Merge branch 'bug9286_v3_squashed' 2015-01-07 10:06:50 -05:00
Nick Mathewson
7984fc1531 Stop accepting milliseconds in various directory contexts
Have clients and authorities both have new behavior, since the
fix for bug 11243 has gone in.  But make clients still accept
accept old bogus HSDir descriptors, to avoid fingerprinting trickery.

Fixes bug 9286.
2015-01-07 10:05:55 -05:00
Nick Mathewson
f54e54b0b4 Bump copyright dates to 2015, in case someday this matters. 2015-01-02 14:27:39 -05:00
Nick Mathewson
0965bbd5ac Merge remote-tracking branch 'origin/maint-0.2.5' 2014-12-22 16:02:47 -05:00
Nick Mathewson
6d728ba880 Merge remote-tracking branch 'public/bug14013_024' into maint-0.2.5 2014-12-22 15:58:49 -05:00
Nick Mathewson
47760c7ba5 When decoding a base-{16,32,64} value, clear the target buffer first
This is a good idea in case the caller stupidly doesn't check the
return value from baseX_decode(), and as a workaround for the
current inconsistent API of base16_decode.

Prevents any fallout from bug 14013.
2014-12-22 12:56:35 -05:00
Karsten Loesing
7cd53b75c1 Add better support to obfuscate statistics. 2014-12-10 11:16:26 +01:00
teor
fd7e9e9030 Stop failing when key files are zero-length
Instead, generate new keys, and overwrite the empty key files.
Adds FN_EMPTY to file_status_t and file_status.
Fixes bug 13111.

Related changes due to review of FN_FILE usage:
Stop generating a fresh .old RSA key file when the .old file is missing.
Avoid overwriting .old key files with empty key files.
Skip loading zero-length extra info store, router store, stats, state,
and key files.
2014-11-08 20:31:20 +11:00
teor
ce7fd6e160 Stop crashing when a NULL filename is passed to file_status()
Stop crashing when a NULL filename is passed to file_status(),
instead, return FN_ERROR.
Also return FN_ERROR when a zero-length filename is passed to file_status().
Fixed as part of bug 13111.
2014-11-08 20:26:53 +11:00
Nick Mathewson
8f645befba 11291: Fix warnings, add changes file, rename 'mask'. 2014-11-05 14:12:18 -05:00
Nick Mathewson
4df419a4b1 Merge remote-tracking branch 'meejah/ticket-11291-extra-utests'
Conflicts:
	src/or/config.c
2014-11-05 14:11:47 -05:00
Nick Mathewson
60c86a3b79 Merge branch 'bug13315_squashed'
Conflicts:
	src/or/buffers.c
2014-11-04 00:48:25 -05:00
Nick Mathewson
74cbd8d559 fix indentation 2014-11-04 00:46:32 -05:00
Nick Mathewson
254ab5a8de Use correct argument types for inet_pton.
(I blame whoever decided that using a void* for a union was a good
idea.)
2014-11-04 00:45:14 -05:00
rl1987
0da4ddda4f Checking if FQDN is actually IPv6 address string and handling that case. 2014-11-04 00:37:24 -05:00
rl1987
2f1068e68a Adding helper function that checks if string is a valid IPv6 address. 2014-11-04 00:37:21 -05:00
rl1987
e8e45ff13e Introducing helper function to validate IPv4 address strings. 2014-11-04 00:36:37 -05:00
rl1987
1ea9a6fd72 Introducing helper function to validate DNS name strings. 2014-11-04 00:35:43 -05:00
Nick Mathewson
a142fc29af Use tor_malloc_zero(x), not tor_calloc(x,sizeof(char))
(Also, fixes a wide line.)
2014-11-02 12:08:51 -05:00
Nick Mathewson
bbd8d07167 Apply new calloc coccinelle patch 2014-11-02 11:56:02 -05:00
Nick Mathewson
ded33cb2c7 Use the | trick to save a comparison in our calloc check. 2014-11-02 11:54:42 -05:00
Nick Mathewson
0d8abf5365 Switch to a < comparison for our calloc check; explain how it works 2014-11-02 11:54:42 -05:00
Mansour Moufid
81b452d245 Document the calloc function overflow check. 2014-11-02 11:54:42 -05:00
Mansour Moufid
06b1ef7b76 Remove a duplicate comment. 2014-11-02 11:54:42 -05:00
Mansour Moufid
3206dbdce1 Refactor the tor_reallocarray_ overflow check. 2014-11-02 11:54:42 -05:00
Mansour Moufid
aff6fa0b59 Refactor the tor_calloc_ overflow check. 2014-11-02 11:54:41 -05:00
Nick Mathewson
fcdcb377a4 Add another year to our copyright dates.
Because in 95 years, we or our successors will surely care about
enforcing the BSD license terms on this code.  Right?
2014-10-28 15:30:16 -04:00
teor
238b8eaa60 Improve date validation in HTTP headers
Check all date/time values passed to tor_timegm
and parse_rfc1123_time for validity, taking leap
years into account.
Improves HTTP header validation.

Avoid unlikely signed integer overflow in tor_timegm
on systems with 32-bit time_t.
Fixes bug 13476.
2014-10-20 02:40:27 +11:00
Nick Mathewson
f1782d9c4c Clean whitespace in last patch. 2014-10-13 13:20:07 -04:00
teor
f51418aabc Avoid overflow in format_time_interval, create unit tests
Fix an instance of integer overflow in format_time_interval() when
taking the absolute value of the supplied signed interval value.
Fixes bug 13393.

Create unit tests for format_time_interval().
2014-10-12 20:50:10 +11:00
Nick Mathewson
48558ed1aa Merge remote-tracking branch 'public/bug13104_025' 2014-09-11 00:11:26 -04:00
Nick Mathewson
284cc9a224 Avoid an overflow on negation in format_helper_exit_status
Part of 13104; patch from teor.
2014-09-11 00:00:13 -04:00
Nick Mathewson
d2463c0cfe Avoid overflows and underflows in sscanf and friends
(Patch from teor on 13104)
2014-09-10 23:57:31 -04:00
Nick Mathewson
1eea7a68ed Use S?SIZE_MAX, not S?SIZE_T_MAX
This fixes bug 13102 (not on any released Tor) where using the
standard SSIZE_MAX name broke mingw64, and we didn't realize.

I did this with
   perl -i -pe 's/SIZE_T_MAX/SIZE_MAX/' src/*/*.[ch] src/*/*/*.[ch]
2014-09-09 12:08:03 -04:00
David Stainton
b59fd2efb6 Fix permissions logic 2014-09-04 22:21:30 +00:00