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597 Commits

Author SHA1 Message Date
Nick Mathewson
347fe449fe Move formatting functions around. 
The base64 and base32 functions used to be in crypto.c;
crypto_format.h had no header; some general-purpose functions were in
crypto_curve25519.c.

This patch makes a {crypto,util}_format.[ch], and puts more functions
there.  Small modules are beautiful!
 2015-07-31 11:21:34 -04:00
Yawning Angel
840e68d917 Integrate and enable ed25519-donna. 
The runtime sanity checking is slightly different from the optimized
basepoint stuff in that it uses a given implementation's self tests if
available, and checks if signing/verification works with a test vector
from the IETF EdDSA draft.

The unit tests include a new testcase that will fuzz donna against ref0,
including the blinding and curve25519 key conversion routines.  If this
is something that should be done at runtime (No?), the code can be
stolen from there.

Note: Integrating batch verification is not done yet.
 2015-07-06 10:11:10 +00:00
Yawning Angel
f079c27761 Integrate the accelerated Curve25519 scalar basemult. 
Integration work scavanged from nickm's `ticket8897_9663_v2` branch,
with minor modifications.  Tor will still sanity check the output but
now also attempts to catch extreme breakage by spot checking the
optimized implementation vs known values from the NaCl documentation.

Implements feature 9663.
 2015-07-06 09:57:23 +00:00
Nick Mathewson
753797391f More tweaks for windows compilation. (ick) 2015-06-29 13:47:44 -04:00
Nick Mathewson
d9052c629b Remove checks for visual C 6. 2015-06-29 12:55:03 -04:00
Nick Mathewson
7816ba8f1a Add assertions to crypto_dh_dup() 
Without these, coverity is annoyed that aren't checking for NULL in bench.c

CID 1293335 -- found by coverity.
 2015-05-28 12:27:22 -04:00
Nick Mathewson
1b52e95028 Merge branch '12498_ed25519_keys_v6' 
Fixed numerous conflicts, and ported code to use new base64 api.
 2015-05-28 11:04:33 -04:00
Nick Mathewson
277c9a3580 Note some functions that should move or be merged 2015-05-28 10:47:47 -04:00
Nick Mathewson
efa21bb941 Implement proposal 228: cross-certification with onion keys 
Routers now use TAP and ntor onion keys to sign their identity keys,
and put these signatures in their descriptors.  That allows other
parties to be confident that the onion keys are indeed controlled by
the router that generated the descriptor.
 2015-05-28 10:40:57 -04:00
Nick Mathewson
fe5d2477aa Implement ed25519-signed descriptors 
Now that we have ed25519 keys, we can sign descriptors with them
and check those signatures as documented in proposal 220.
 2015-05-28 10:40:56 -04:00
Nick Mathewson
0b7bf3585a Generate error ASAP if building with too-old openssl 2015-05-21 11:54:13 -04:00
Nick Mathewson
ed02a409cf Merge branch 'bug16034_no_more_openssl_098_squashed' 
Conflicts:
	src/test/testing_common.c
 2015-05-20 15:33:22 -04:00
Nick Mathewson
f8f407d66a Now that OpenSSL 0.9.8 is dead, crypto_seed_rng() needs no args 
It needed an argument before because it wasn't safe to call
RAND_poll() on openssl 0.9.8c if you had already opened more fds
than would fit in fd_set.
 2015-05-20 15:27:36 -04:00
Nick Mathewson
971f0f8e18 Remove code to support OpenSSL 0.9.8 2015-05-20 15:27:36 -04:00
Yawning Angel
53a347592a ERR_remove_state() is deprecated since OpenSSL 1.0.0. 
OpenSSL 1.1.0 must be built with "enable-deprecated", and compiled with
`OPENSSL_USE_DEPRECATED` for this to work, so instead, use the newer
routine as appropriate.
 2015-05-13 11:13:07 -04:00
Yawning Angel
915c7438a7 Add "ADD_ONION"/"DEL_ONION" and "GETINFO onions/*" to the controller. 
These commands allow for the creation and management of ephemeral
Onion ("Hidden") services that are either bound to the lifetime of
the originating control connection, or optionally the lifetime of
the tor instance.

Implements #6411.
 2015-04-28 10:19:08 -04:00
Nick Mathewson
9a81ed1d23 Fix some RNG function issues 2015-04-23 11:13:51 -04:00
Nick Mathewson
c3894473fe whitespace fixes 2015-04-23 09:36:43 -04:00
Nick Mathewson
241e6b0937 Fix some conversion problems 2015-04-23 09:16:42 -04:00
Nick Mathewson
647b7d37c2 Merge remote-tracking branch 'public/bug15745_027_03' 2015-04-23 09:10:35 -04:00
Nick Mathewson
55118d90ca Fix some implicit conversion warnings 2015-04-23 09:09:20 -04:00
Yawning Angel
196499da73 Use a custom Base64 encoder with more control over the output format. 2015-04-23 09:06:58 -04:00
Nick Mathewson
6bf31543dc Make the crypto_rand_int_range return value right-exclusive. 2015-04-21 11:30:21 -04:00
David Goulet
3f41318472 Add crypto_rand_int_range() and use it 
Incidently, this fixes a bug where the maximum value was never used when
only using crypto_rand_int(). For instance this example below in
rendservice.c never gets to INTRO_POINT_LIFETIME_MAX_SECONDS.

  int intro_point_lifetime_seconds =
    INTRO_POINT_LIFETIME_MIN_SECONDS +
    crypto_rand_int(INTRO_POINT_LIFETIME_MAX_SECONDS -
                    INTRO_POINT_LIFETIME_MIN_SECONDS);

Signed-off-by: David Goulet <dgoulet@ev0ke.net>
 2015-04-21 11:06:12 -04:00
Yawning Angel
ba2485f7df Remove USE_OPENSSL_BASE64 and the associated code. 
The alternative has been available since 2007, there's no way to
actually enable the ifdef, and it breaks on well formed but not OpenSSL
style inputs.
 2015-04-10 09:12:47 +00:00
Nick Mathewson
cd8f13b5cb Merge branch 'bug13736' 2015-04-01 13:46:50 -04:00
Nick Mathewson
baf24bf4d1 Unindent a block in crypto_set_tls_dh_prime 2015-04-01 13:40:37 -04:00
cypherpunks
5176f6f103 Remove relative paths to header files. 
The paths are already in the directory search path of the compiler therefore no
need to include them in the source code.
 2015-03-14 13:00:05 -04:00
Nick Mathewson
511ca9b91c Remove DynamicDHGroups as obsoleted by PluggableTransports or P256. 
Closes ticket 13736.
 2015-03-14 12:40:55 -04:00
Nick Mathewson
e9caa8645e Try to work around changes in openssl 1.1.0 
Prefer not to use a couple of deprecated functions; include more
headers in tortls.c

This is part of  ticket 14188.
 2015-01-28 10:00:58 -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
George Kadianakis
447ece46f5 Constify crypto_pk_get_digest(). 2014-12-02 12:15:11 +00:00
rl1987
4b18d8931b Downgrade RSA signature verification failure error message to info loglevel. 2014-11-09 17:39:23 +02:00
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
2e1f5c1fc0 Memwipe more keys after tor has finished with them 
Ensure we securely wipe keys from memory after
crypto_digest_get_digest and init_curve25519_keypair_from_file
have finished using them.

Fixes bug 13477.
 2014-10-20 03:06:28 +11:00
Nick Mathewson
90bce702ba Merge remote-tracking branch 'public/bug10816' 2014-10-09 10:57:19 -04:00
Nick Mathewson
42350968a9 Drop check for NTE_BAD_KEYSET error 
Any error when acquiring the CryptoAPI context should get treated as
bad.  Also, this one can't happen for the arguments we're giving.
Fixes bug 10816; bugfix on 0.0.2pre26.
 2014-08-29 13:24:29 -04:00
Nick Mathewson
e72a5b3c07 Move secret-to-key functionality into a separate module 
I'm about to add more of these, so we might as well trudge forward.
 2014-08-28 12:04:22 -04:00
Nick Mathewson
9b2d8c4e20 Rename secret_to_key to secret_to_key_rfc2440 2014-08-28 11:20:31 -04:00
Nick Mathewson
2bfd92d0d1 Apply coccinelle script to replace malloc(a*b)->calloc(a,b) 2014-08-13 10:39:56 -04:00
Nick Mathewson
58f4200789 Thread support is now required 
Long ago we supported systems where there was no support for
threads, or where the threading library was broken. We shouldn't
have do that any more: on every OS that matters, threads exist, and
the OS supports running threads across multiple CPUs.

This resolves tickets 9495 and 12439.  It's a prerequisite to making
our workqueue code work better, since sensible workqueue
implementations don't split across multiple processes.
 2014-06-20 10:20:10 -04:00
Nick Mathewson
156eefca45 Make sure everything using an interned string is preceded by a log 
(It's nice to know what we were about to rename before we died from
renaming it.)
 2014-04-16 22:03:09 -04:00
Nick Mathewson
d5e11f21cc Fix warnings from doxygen 
Most of these are simple.  The only nontrivial part is that our
pattern for using ENUM_BF was confusing doxygen by making declarations
that didn't look like declarations.
 2014-03-25 11:27:43 -04:00
Roger Dingledine
c08b47977e Never run crypto_early_init() more than once 
Previously we had set up all the infrastructure to avoid calling it
after the first time, but didn't actually use it.
 2014-03-23 00:38:17 -04:00
Roger Dingledine
d336d407d6 whitespace fix 2014-03-23 00:12:40 -04:00
Karsten Loesing
3ca5fe81e3 Write hashed bridge fingerprint to logs and to disk. 
Implements #10884.
 2014-02-28 08:53:13 -05:00
Nick Mathewson
c1e98c8afe Randomize the global siphash key at startup 
This completes our conversion to using siphash for our hash functions.
 2014-02-12 12:12:58 -05:00
Nick Mathewson
d3fb846d8c Split crypto_global_init() into pre/post config 
It's increasingly apparent that we want to make sure we initialize our
PRNG nice and early, or else OpenSSL will do it for us.  (OpenSSL
doesn't do _too_ bad a job, but it's nice to do it ourselves.)

We'll also need this for making sure we initialize the siphash key
before we do any hashes.
 2014-02-12 12:04:07 -05:00
Florent Daigniere
01132c93fd Some anti-forensics paranoia... 
sed -i 's/BN_free/BN_clear_free/g'
 2014-02-06 16:09:12 -05:00
Florent Daigniere
9d6e805d28 Some anti-forensics paranoia... 
sed -i 's/BN_free/BN_clear_free/g'
 2014-02-03 10:44:19 -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
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
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
25a3ae922f Merge remote-tracking branch 'Ryman/bug6384' 
Conflicts:
	src/or/config.c
	src/or/main.c
 2013-09-13 12:55:53 -04:00
Nick Mathewson
e0b2cd061b Merge remote-tracking branch 'ctoader/gsoc-cap-stage2' 
Conflicts:
	src/common/sandbox.c
 2013-09-13 12:31:41 -04:00
Kevin Butler
b539b37205 Fixed leak and added minor documentation for #6384. 2013-09-04 02:56:06 +01:00
Kevin Butler
6e17fa6d7b Added --library-versions flag to print the compile time and runtime versions of libevent, openssl and zlib. Partially implements #6384. 2013-09-01 17:38:01 +01:00
Nick Mathewson
fd6749203e More unit tests for handle_client_auth_nonce 
Incidentally, this business here where I make crypto_rand mockable:
this is exactly the kind of thing that would make me never want to
include test-support stuff in production builds.
 2013-08-15 12:03:37 -04:00
Cristian Toader
89b39db003 updated filters to work with orport 2013-08-09 19:07:20 +03:00
Nick Mathewson
a3e0a87d95 Completely refactor how FILENAME_PRIVATE works 
We previously used FILENAME_PRIVATE identifiers mostly for
identifiers exposed only to the unit tests... but also for
identifiers exposed to the benchmarker, and sometimes for
identifiers exposed to a similar module, and occasionally for no
really good reason at all.

Now, we use FILENAME_PRIVATE identifiers for identifiers shared by
Tor and the unit tests.  They should be defined static when we
aren't building the unit test, and globally visible otherwise. (The
STATIC macro will keep us honest here.)

For identifiers used only by the unit tests and never by Tor at all,
on the other hand, we wrap them in #ifdef TOR_UNIT_TESTS.

This is not the motivating use case for the split test/non-test
build system; it's just a test example to see how it works, and to
take a chance to clean up the code a little.
 2013-07-10 15:20:10 -04:00
Nick Mathewson
7f9066ceee Make OPENSSL_free(dh_string_repr) conditional. 2013-06-10 13:49:13 -04:00
Marek Majkowski
6f1c67195c Bug #5170 - also simplify i2d_DHparams 2013-06-06 12:13:24 +01:00
Marek Majkowski
2132d036e3 Bug #5170 - i2d_RSAPublicKey supports allocating its own output buffer 2013-06-06 11:45:35 +01:00
Arlo Breault
0ab38b9366 Remove PK_PKCS1_PADDING 
See #8792
 2013-05-17 10:11:33 -04:00
Nick Mathewson
da30adcf0f Merge remote-tracking branch 'origin/maint-0.2.4' 
Conflicts:
	src/common/crypto.c
 2013-04-18 11:16:05 -04:00
Nick Mathewson
9fec0c1a95 Remove a double-newline 2013-04-18 11:14:05 -04:00
Nick Mathewson
8362f8854a Merge branch 'less_charbuf_rebased' into maint-0.2.4 
Conflicts:
	src/or/dirserv.c
	src/or/dirserv.h
	src/test/test_dir.c
 2013-04-18 11:13:36 -04:00
Nick Mathewson
e1128d905c Fix a couple of documentation issues. 2013-04-18 11:04:57 -04:00
Nick Mathewson
cb75519bbf Refactor dirobj signature generation 
Now we can compute the hash and signature of a dirobj before
concatenating the smartlist, and we don't need to play silly games
with sigbuf and realloc any more.
 2013-04-18 11:04:57 -04:00
Nick Mathewson
19d6650f81 Merge remote-tracking branch 'origin/maint-0.2.4' 2013-03-18 15:41:14 -04:00
Nick Mathewson
eff1cfaaf7 Merge remote-tracking branch 'public/bug6673' into maint-0.2.4 2013-03-18 15:40:50 -04:00
Nick Mathewson
b163e801bc Merge remote-tracking branch 'origin/maint-0.2.4' 
Conflicts:
	src/or/routerlist.c
 2013-03-15 12:20:17 -04:00
Nick Mathewson
fdafe11a25 Give an #error when we want threads and OpenSSL has disabled threads 
Fixes ticket 6673.
 2013-03-11 13:23:10 -04:00
Nick Mathewson
55ce9bff54 Remove unused check_fingerprint_syntax 2013-03-01 22:01:26 -05:00
Nick Mathewson
a05dc378e3 Remove unused HMAC-SHA1 function 
(We're not adding any new SHA1 instances in our protocols, so this
should never actually be needed.)
 2013-03-01 21:59:12 -05:00
Nick Mathewson
a4e9d67292 Remove some functions which were unused except for their tests 2013-02-23 23:38:43 -05:00
Nick Mathewson
365e302f61 Remove a bunch of unused macro definitions 2013-02-23 23:05:25 -05:00
Nick Mathewson
8cdd8b8353 Fix numerous problems with Tor's weak RNG. 
We need a weak RNG in a couple of places where the strong RNG is
both needless and too slow.  We had been using the weak RNG from our
platform's libc implementation, but that was problematic (because
many platforms have exceptionally horrible weak RNGs -- like, ones
that only return values between 0 and SHORT_MAX) and because we were
using it in a way that was wrong for LCG-based weak RNGs.  (We were
counting on the low bits of the LCG output to be as random as the
high ones, which isn't true.)

This patch adds a separate type for a weak RNG, adds an LCG
implementation for it, and uses that exclusively where we had been
using the platform weak RNG.
 2013-02-08 16:28:05 -05:00
Nick Mathewson
7301339e33 fix wide lines from tor_log rename 2013-02-01 16:19:02 -05:00
Nick Mathewson
a141430ec3 Rename log() to tor_log() for logging 
This is meant to avoid conflict with the built-in log() function in
math.h.  It resolves ticket 7599.  First reported by dhill.

This was generated with the following perl script:

 #!/usr/bin/perl -w -i -p

 s/\blog\(LOG_(ERR|WARN|NOTICE|INFO|DEBUG)\s*,\s*/log_\L$1\(/g;

 s/\blog\(/tor_log\(/g;
 2013-02-01 15:43:37 -05:00
Nick Mathewson
e0581a4b57 Replace base-{16,32,64} with base{16,32,64} in the code 
Patch from onizuka generated with

 find ./ -type f -perm -u+rw -exec sed -ri 's/(Base)-(16|32|64)/\1\2/gi' {} \;

Fixes issue 6875 on Tor.
 2013-01-17 16:08:28 -05:00
Nick Mathewson
b998431a33 Merge branch '024_msvc_squashed' 
Conflicts:
	src/or/or.h
	 srcwin32/orconfig.h
 2013-01-16 22:32:12 -05:00
Nick Mathewson
5e06c4ee32 When building with MSVC, call every enum bitfield unsigned 
Fixes bug 7305.
 2013-01-16 22:29:39 -05:00
Nick Mathewson
4da083db3b Update the copyright date to 201. 2013-01-16 01:54:56 -05:00
Nick Mathewson
b1bdecd703 Merge branch 'ntor-resquashed' 
Conflicts:
	src/or/cpuworker.c
	src/or/or.h
	src/test/bench.c
 2013-01-03 11:52:41 -05:00
Nick Mathewson
25c05cb747 Refactor strong os-RNG into its own function 
Previously, we only used the strong OS entropy source as part of
seeding OpenSSL's RNG.  But with curve25519, we'll have occasion to
want to generate some keys using extremely-good entopy, as well as the
means to do so.  So let's!

This patch refactors the OS-entropy wrapper into its own
crypto_strongest_rand() function, and makes our new
curve25519_secret_key_generate function try it as appropriate.
 2013-01-02 14:11:13 -05:00
Sebastian Hahn
11e8a445c3 Fix a couple of harmless clang3.2 warnings 2012-12-31 18:23:28 +01:00
Nick Mathewson
6921d1fd25 Implement HKDF from RFC5869 
This is a customizable extract-and-expand HMAC-KDF for deriving keys.
It derives from RFC5869, which derives its rationale from Krawczyk,
H., "Cryptographic Extraction and Key Derivation: The HKDF Scheme",
Proceedings of CRYPTO 2010, 2010, <http://eprint.iacr.org/2010/264>.

I'm also renaming the existing KDF, now that Tor has two of them.

This is the key derivation scheme specified in ntor.

There are also unit tests.
 2012-12-06 01:54:09 -05:00
Nick Mathewson
3c3084e165 Add a crypto_dh_dup, for benchmark support 2012-12-06 01:54:09 -05:00
Nick Mathewson
e6828ea634 Refer to RFC 4648 instead of the obsolete RFC 3548 
Affects comments only. For ticket 6849.
 2012-11-23 09:51:35 -05:00
Nick Mathewson
81deddb08c Merge remote-tracking branch 'origin/maint-0.2.3' 
Conflicts:
	src/common/crypto.c
	src/or/rendservice.c
 2012-11-08 16:48:04 -05:00
Nick Mathewson
49dd5ef3a3 Add and use and unlikely-to-be-eliminated memwipe() 
Apparently some compilers like to eliminate memset() operations on
data that's about to go out-of-scope.  I've gone with the safest
possible replacement, which might be a bit slow.  I don't think this
is critical path in any way that will affect performance, but if it
is, we can work on that in 0.2.4.

Fixes bug 7352.
 2012-11-08 16:44:50 -05:00
Nick Mathewson
56c0baa523 Rename all reserved C identifiers we defined 
For everything we declare that starts with _, make it end with _ instead.

This is a machine-generated patch.  To make it, start by getting the
list of reserved identifiers using:

     git ls-tree -r --name-only HEAD | grep  '\.[ch]$' | \
       xargs ctags --c-kinds=defglmpstuvx -o - | grep '^_' | \
       cut -f 1 | sort| uniq

You might need gnu ctags.

Then pipe the output through this script:
==============================

use strict;

BEGIN { print "#!/usr/bin/perl -w -i -p\n\n"; }

chomp;

next if (
     /^__attribute__/ or
     /^__func__/ or
     /^_FILE_OFFSET_BITS/ or
     /^_FORTIFY_SOURCE/ or
     /^_GNU_SOURCE/ or
     /^_WIN32/ or
     /^_DARWIN_UNLIMITED/ or
     /^_FILE_OFFSET_BITS/ or
     /^_LARGEFILE64_SOURCE/ or
     /^_LFS64_LARGEFILE/ or
     /^__cdecl/ or
     /^__attribute__/ or
     /^__func__/ or
    /^_WIN32_WINNT/);

my $ident = $_;

my $better = $ident;
$better =~ s/^_//;

$better = "${better}_";

print "s/(?<![A-Za-z0-9_])$ident(?![A-Za-z0-9_])/$better/g;\n";
==============================

Then run the resulting script on all the files you want to change.
(That is, all the C except that in src/ext.)  The resulting script was:

==============================

s/(?<![A-Za-z0-9_])_address(?![A-Za-z0-9_])/address_/g;
s/(?<![A-Za-z0-9_])_aes_fill_buf(?![A-Za-z0-9_])/aes_fill_buf_/g;
s/(?<![A-Za-z0-9_])_AllowInvalid(?![A-Za-z0-9_])/AllowInvalid_/g;
s/(?<![A-Za-z0-9_])_AP_CONN_STATE_MAX(?![A-Za-z0-9_])/AP_CONN_STATE_MAX_/g;
s/(?<![A-Za-z0-9_])_AP_CONN_STATE_MIN(?![A-Za-z0-9_])/AP_CONN_STATE_MIN_/g;
s/(?<![A-Za-z0-9_])_assert_cache_ok(?![A-Za-z0-9_])/assert_cache_ok_/g;
s/(?<![A-Za-z0-9_])_A_UNKNOWN(?![A-Za-z0-9_])/A_UNKNOWN_/g;
s/(?<![A-Za-z0-9_])_base(?![A-Za-z0-9_])/base_/g;
s/(?<![A-Za-z0-9_])_BridgePassword_AuthDigest(?![A-Za-z0-9_])/BridgePassword_AuthDigest_/g;
s/(?<![A-Za-z0-9_])_buffer_stats_compare_entries(?![A-Za-z0-9_])/buffer_stats_compare_entries_/g;
s/(?<![A-Za-z0-9_])_chan_circid_entries_eq(?![A-Za-z0-9_])/chan_circid_entries_eq_/g;
s/(?<![A-Za-z0-9_])_chan_circid_entry_hash(?![A-Za-z0-9_])/chan_circid_entry_hash_/g;
s/(?<![A-Za-z0-9_])_check_no_tls_errors(?![A-Za-z0-9_])/check_no_tls_errors_/g;
s/(?<![A-Za-z0-9_])_c_hist_compare(?![A-Za-z0-9_])/c_hist_compare_/g;
s/(?<![A-Za-z0-9_])_circ(?![A-Za-z0-9_])/circ_/g;
s/(?<![A-Za-z0-9_])_circuit_get_global_list(?![A-Za-z0-9_])/circuit_get_global_list_/g;
s/(?<![A-Za-z0-9_])_circuit_mark_for_close(?![A-Za-z0-9_])/circuit_mark_for_close_/g;
s/(?<![A-Za-z0-9_])_CIRCUIT_PURPOSE_C_MAX(?![A-Za-z0-9_])/CIRCUIT_PURPOSE_C_MAX_/g;
s/(?<![A-Za-z0-9_])_CIRCUIT_PURPOSE_MAX(?![A-Za-z0-9_])/CIRCUIT_PURPOSE_MAX_/g;
s/(?<![A-Za-z0-9_])_CIRCUIT_PURPOSE_MIN(?![A-Za-z0-9_])/CIRCUIT_PURPOSE_MIN_/g;
s/(?<![A-Za-z0-9_])_CIRCUIT_PURPOSE_OR_MAX(?![A-Za-z0-9_])/CIRCUIT_PURPOSE_OR_MAX_/g;
s/(?<![A-Za-z0-9_])_CIRCUIT_PURPOSE_OR_MIN(?![A-Za-z0-9_])/CIRCUIT_PURPOSE_OR_MIN_/g;
s/(?<![A-Za-z0-9_])_cmp_int_strings(?![A-Za-z0-9_])/cmp_int_strings_/g;
s/(?<![A-Za-z0-9_])_compare_cached_resolves_by_expiry(?![A-Za-z0-9_])/compare_cached_resolves_by_expiry_/g;
s/(?<![A-Za-z0-9_])_compare_digests(?![A-Za-z0-9_])/compare_digests_/g;
s/(?<![A-Za-z0-9_])_compare_digests256(?![A-Za-z0-9_])/compare_digests256_/g;
s/(?<![A-Za-z0-9_])_compare_dir_src_ents_by_authority_id(?![A-Za-z0-9_])/compare_dir_src_ents_by_authority_id_/g;
s/(?<![A-Za-z0-9_])_compare_duration_idx(?![A-Za-z0-9_])/compare_duration_idx_/g;
s/(?<![A-Za-z0-9_])_compare_int(?![A-Za-z0-9_])/compare_int_/g;
s/(?<![A-Za-z0-9_])_compare_networkstatus_v2_published_on(?![A-Za-z0-9_])/compare_networkstatus_v2_published_on_/g;
s/(?<![A-Za-z0-9_])_compare_old_routers_by_identity(?![A-Za-z0-9_])/compare_old_routers_by_identity_/g;
s/(?<![A-Za-z0-9_])_compare_orports(?![A-Za-z0-9_])/compare_orports_/g;
s/(?<![A-Za-z0-9_])_compare_pairs(?![A-Za-z0-9_])/compare_pairs_/g;
s/(?<![A-Za-z0-9_])_compare_routerinfo_by_id_digest(?![A-Za-z0-9_])/compare_routerinfo_by_id_digest_/g;
s/(?<![A-Za-z0-9_])_compare_routerinfo_by_ip_and_bw(?![A-Za-z0-9_])/compare_routerinfo_by_ip_and_bw_/g;
s/(?<![A-Za-z0-9_])_compare_signed_descriptors_by_age(?![A-Za-z0-9_])/compare_signed_descriptors_by_age_/g;
s/(?<![A-Za-z0-9_])_compare_string_ptrs(?![A-Za-z0-9_])/compare_string_ptrs_/g;
s/(?<![A-Za-z0-9_])_compare_strings_for_pqueue(?![A-Za-z0-9_])/compare_strings_for_pqueue_/g;
s/(?<![A-Za-z0-9_])_compare_strs(?![A-Za-z0-9_])/compare_strs_/g;
s/(?<![A-Za-z0-9_])_compare_tor_version_str_ptr(?![A-Za-z0-9_])/compare_tor_version_str_ptr_/g;
s/(?<![A-Za-z0-9_])_compare_vote_rs(?![A-Za-z0-9_])/compare_vote_rs_/g;
s/(?<![A-Za-z0-9_])_compare_votes_by_authority_id(?![A-Za-z0-9_])/compare_votes_by_authority_id_/g;
s/(?<![A-Za-z0-9_])_compare_without_first_ch(?![A-Za-z0-9_])/compare_without_first_ch_/g;
s/(?<![A-Za-z0-9_])_connection_free(?![A-Za-z0-9_])/connection_free_/g;
s/(?<![A-Za-z0-9_])_connection_mark_and_flush(?![A-Za-z0-9_])/connection_mark_and_flush_/g;
s/(?<![A-Za-z0-9_])_connection_mark_for_close(?![A-Za-z0-9_])/connection_mark_for_close_/g;
s/(?<![A-Za-z0-9_])_connection_mark_unattached_ap(?![A-Za-z0-9_])/connection_mark_unattached_ap_/g;
s/(?<![A-Za-z0-9_])_connection_write_to_buf_impl(?![A-Za-z0-9_])/connection_write_to_buf_impl_/g;
s/(?<![A-Za-z0-9_])_ConnLimit(?![A-Za-z0-9_])/ConnLimit_/g;
s/(?<![A-Za-z0-9_])_CONN_TYPE_MAX(?![A-Za-z0-9_])/CONN_TYPE_MAX_/g;
s/(?<![A-Za-z0-9_])_CONN_TYPE_MIN(?![A-Za-z0-9_])/CONN_TYPE_MIN_/g;
s/(?<![A-Za-z0-9_])_CONTROL_CONN_STATE_MAX(?![A-Za-z0-9_])/CONTROL_CONN_STATE_MAX_/g;
s/(?<![A-Za-z0-9_])_CONTROL_CONN_STATE_MIN(?![A-Za-z0-9_])/CONTROL_CONN_STATE_MIN_/g;
s/(?<![A-Za-z0-9_])_CPUWORKER_STATE_MAX(?![A-Za-z0-9_])/CPUWORKER_STATE_MAX_/g;
s/(?<![A-Za-z0-9_])_CPUWORKER_STATE_MIN(?![A-Za-z0-9_])/CPUWORKER_STATE_MIN_/g;
s/(?<![A-Za-z0-9_])_crypto_dh_get_dh(?![A-Za-z0-9_])/crypto_dh_get_dh_/g;
s/(?<![A-Za-z0-9_])_crypto_global_initialized(?![A-Za-z0-9_])/crypto_global_initialized_/g;
s/(?<![A-Za-z0-9_])_crypto_new_pk_from_rsa(?![A-Za-z0-9_])/crypto_new_pk_from_rsa_/g;
s/(?<![A-Za-z0-9_])_crypto_pk_get_evp_pkey(?![A-Za-z0-9_])/crypto_pk_get_evp_pkey_/g;
s/(?<![A-Za-z0-9_])_crypto_pk_get_rsa(?![A-Za-z0-9_])/crypto_pk_get_rsa_/g;
s/(?<![A-Za-z0-9_])_DIR_CONN_STATE_MAX(?![A-Za-z0-9_])/DIR_CONN_STATE_MAX_/g;
s/(?<![A-Za-z0-9_])_DIR_CONN_STATE_MIN(?![A-Za-z0-9_])/DIR_CONN_STATE_MIN_/g;
s/(?<![A-Za-z0-9_])_DIR_PURPOSE_MAX(?![A-Za-z0-9_])/DIR_PURPOSE_MAX_/g;
s/(?<![A-Za-z0-9_])_DIR_PURPOSE_MIN(?![A-Za-z0-9_])/DIR_PURPOSE_MIN_/g;
s/(?<![A-Za-z0-9_])_dirreq_map_get(?![A-Za-z0-9_])/dirreq_map_get_/g;
s/(?<![A-Za-z0-9_])_dirreq_map_put(?![A-Za-z0-9_])/dirreq_map_put_/g;
s/(?<![A-Za-z0-9_])_dns_randfn(?![A-Za-z0-9_])/dns_randfn_/g;
s/(?<![A-Za-z0-9_])_dummy(?![A-Za-z0-9_])/dummy_/g;
s/(?<![A-Za-z0-9_])_edge(?![A-Za-z0-9_])/edge_/g;
s/(?<![A-Za-z0-9_])_END_CIRC_REASON_MAX(?![A-Za-z0-9_])/END_CIRC_REASON_MAX_/g;
s/(?<![A-Za-z0-9_])_END_CIRC_REASON_MIN(?![A-Za-z0-9_])/END_CIRC_REASON_MIN_/g;
s/(?<![A-Za-z0-9_])_EOF(?![A-Za-z0-9_])/EOF_/g;
s/(?<![A-Za-z0-9_])_ERR(?![A-Za-z0-9_])/ERR_/g;
s/(?<![A-Za-z0-9_])_escaped_val(?![A-Za-z0-9_])/escaped_val_/g;
s/(?<![A-Za-z0-9_])_evdns_log(?![A-Za-z0-9_])/evdns_log_/g;
s/(?<![A-Za-z0-9_])_evdns_nameserver_add_impl(?![A-Za-z0-9_])/evdns_nameserver_add_impl_/g;
s/(?<![A-Za-z0-9_])_EVENT_MAX(?![A-Za-z0-9_])/EVENT_MAX_/g;
s/(?<![A-Za-z0-9_])_EVENT_MIN(?![A-Za-z0-9_])/EVENT_MIN_/g;
s/(?<![A-Za-z0-9_])_ExcludeExitNodesUnion(?![A-Za-z0-9_])/ExcludeExitNodesUnion_/g;
s/(?<![A-Za-z0-9_])_EXIT_CONN_STATE_MAX(?![A-Za-z0-9_])/EXIT_CONN_STATE_MAX_/g;
s/(?<![A-Za-z0-9_])_EXIT_CONN_STATE_MIN(?![A-Za-z0-9_])/EXIT_CONN_STATE_MIN_/g;
s/(?<![A-Za-z0-9_])_EXIT_PURPOSE_MAX(?![A-Za-z0-9_])/EXIT_PURPOSE_MAX_/g;
s/(?<![A-Za-z0-9_])_EXIT_PURPOSE_MIN(?![A-Za-z0-9_])/EXIT_PURPOSE_MIN_/g;
s/(?<![A-Za-z0-9_])_extrainfo_free(?![A-Za-z0-9_])/extrainfo_free_/g;
s/(?<![A-Za-z0-9_])_find_by_keyword(?![A-Za-z0-9_])/find_by_keyword_/g;
s/(?<![A-Za-z0-9_])_free_cached_dir(?![A-Za-z0-9_])/free_cached_dir_/g;
s/(?<![A-Za-z0-9_])_free_cached_resolve(?![A-Za-z0-9_])/free_cached_resolve_/g;
s/(?<![A-Za-z0-9_])_free_duplicate_routerstatus_entry(?![A-Za-z0-9_])/free_duplicate_routerstatus_entry_/g;
s/(?<![A-Za-z0-9_])_free_link_history(?![A-Za-z0-9_])/free_link_history_/g;
s/(?<![A-Za-z0-9_])_geoip_compare_entries(?![A-Za-z0-9_])/geoip_compare_entries_/g;
s/(?<![A-Za-z0-9_])_geoip_compare_key_to_entry(?![A-Za-z0-9_])/geoip_compare_key_to_entry_/g;
s/(?<![A-Za-z0-9_])_hex_decode_digit(?![A-Za-z0-9_])/hex_decode_digit_/g;
s/(?<![A-Za-z0-9_])_idxplus1(?![A-Za-z0-9_])/idxplus1_/g;
s/(?<![A-Za-z0-9_])__libc_enable_secure(?![A-Za-z0-9_])/_libc_enable_secure_/g;
s/(?<![A-Za-z0-9_])_log_debug(?![A-Za-z0-9_])/log_debug_/g;
s/(?<![A-Za-z0-9_])_log_err(?![A-Za-z0-9_])/log_err_/g;
s/(?<![A-Za-z0-9_])_log_fn(?![A-Za-z0-9_])/log_fn_/g;
s/(?<![A-Za-z0-9_])_log_fn_function_name(?![A-Za-z0-9_])/log_fn_function_name_/g;
s/(?<![A-Za-z0-9_])_log_global_min_severity(?![A-Za-z0-9_])/log_global_min_severity_/g;
s/(?<![A-Za-z0-9_])_log_info(?![A-Za-z0-9_])/log_info_/g;
s/(?<![A-Za-z0-9_])_log_notice(?![A-Za-z0-9_])/log_notice_/g;
s/(?<![A-Za-z0-9_])_log_prefix(?![A-Za-z0-9_])/log_prefix_/g;
s/(?<![A-Za-z0-9_])_log_warn(?![A-Za-z0-9_])/log_warn_/g;
s/(?<![A-Za-z0-9_])_magic(?![A-Za-z0-9_])/magic_/g;
s/(?<![A-Za-z0-9_])_MALLOC_LOCK(?![A-Za-z0-9_])/MALLOC_LOCK_/g;
s/(?<![A-Za-z0-9_])_MALLOC_LOCK_INIT(?![A-Za-z0-9_])/MALLOC_LOCK_INIT_/g;
s/(?<![A-Za-z0-9_])_MALLOC_UNLOCK(?![A-Za-z0-9_])/MALLOC_UNLOCK_/g;
s/(?<![A-Za-z0-9_])_microdesc_eq(?![A-Za-z0-9_])/microdesc_eq_/g;
s/(?<![A-Za-z0-9_])_microdesc_hash(?![A-Za-z0-9_])/microdesc_hash_/g;
s/(?<![A-Za-z0-9_])_MIN_TOR_TLS_ERROR_VAL(?![A-Za-z0-9_])/MIN_TOR_TLS_ERROR_VAL_/g;
s/(?<![A-Za-z0-9_])_mm_free(?![A-Za-z0-9_])/mm_free_/g;
s/(?<![A-Za-z0-9_])_NIL(?![A-Za-z0-9_])/NIL_/g;
s/(?<![A-Za-z0-9_])_n_openssl_mutexes(?![A-Za-z0-9_])/n_openssl_mutexes_/g;
s/(?<![A-Za-z0-9_])_openssl_dynlock_create_cb(?![A-Za-z0-9_])/openssl_dynlock_create_cb_/g;
s/(?<![A-Za-z0-9_])_openssl_dynlock_destroy_cb(?![A-Za-z0-9_])/openssl_dynlock_destroy_cb_/g;
s/(?<![A-Za-z0-9_])_openssl_dynlock_lock_cb(?![A-Za-z0-9_])/openssl_dynlock_lock_cb_/g;
s/(?<![A-Za-z0-9_])_openssl_locking_cb(?![A-Za-z0-9_])/openssl_locking_cb_/g;
s/(?<![A-Za-z0-9_])_openssl_mutexes(?![A-Za-z0-9_])/openssl_mutexes_/g;
s/(?<![A-Za-z0-9_])_option_abbrevs(?![A-Za-z0-9_])/option_abbrevs_/g;
s/(?<![A-Za-z0-9_])_option_vars(?![A-Za-z0-9_])/option_vars_/g;
s/(?<![A-Za-z0-9_])_OR_CONN_STATE_MAX(?![A-Za-z0-9_])/OR_CONN_STATE_MAX_/g;
s/(?<![A-Za-z0-9_])_OR_CONN_STATE_MIN(?![A-Za-z0-9_])/OR_CONN_STATE_MIN_/g;
s/(?<![A-Za-z0-9_])_OutboundBindAddressIPv4(?![A-Za-z0-9_])/OutboundBindAddressIPv4_/g;
s/(?<![A-Za-z0-9_])_OutboundBindAddressIPv6(?![A-Za-z0-9_])/OutboundBindAddressIPv6_/g;
s/(?<![A-Za-z0-9_])_PDS_PREFER_TUNNELED_DIR_CONNS(?![A-Za-z0-9_])/PDS_PREFER_TUNNELED_DIR_CONNS_/g;
s/(?<![A-Za-z0-9_])_port(?![A-Za-z0-9_])/port_/g;
s/(?<![A-Za-z0-9_])__progname(?![A-Za-z0-9_])/_progname_/g;
s/(?<![A-Za-z0-9_])_PublishServerDescriptor(?![A-Za-z0-9_])/PublishServerDescriptor_/g;
s/(?<![A-Za-z0-9_])_remove_old_client_helper(?![A-Za-z0-9_])/remove_old_client_helper_/g;
s/(?<![A-Za-z0-9_])_rend_cache_entry_free(?![A-Za-z0-9_])/rend_cache_entry_free_/g;
s/(?<![A-Za-z0-9_])_routerlist_find_elt(?![A-Za-z0-9_])/routerlist_find_elt_/g;
s/(?<![A-Za-z0-9_])_SafeLogging(?![A-Za-z0-9_])/SafeLogging_/g;
s/(?<![A-Za-z0-9_])_SHORT_FILE_(?![A-Za-z0-9_])/SHORT_FILE__/g;
s/(?<![A-Za-z0-9_])_state_abbrevs(?![A-Za-z0-9_])/state_abbrevs_/g;
s/(?<![A-Za-z0-9_])_state_vars(?![A-Za-z0-9_])/state_vars_/g;
s/(?<![A-Za-z0-9_])_t(?![A-Za-z0-9_])/t_/g;
s/(?<![A-Za-z0-9_])_t32(?![A-Za-z0-9_])/t32_/g;
s/(?<![A-Za-z0-9_])_test_op_ip6(?![A-Za-z0-9_])/test_op_ip6_/g;
s/(?<![A-Za-z0-9_])_thread1_name(?![A-Za-z0-9_])/thread1_name_/g;
s/(?<![A-Za-z0-9_])_thread2_name(?![A-Za-z0-9_])/thread2_name_/g;
s/(?<![A-Za-z0-9_])_thread_test_func(?![A-Za-z0-9_])/thread_test_func_/g;
s/(?<![A-Za-z0-9_])_thread_test_mutex(?![A-Za-z0-9_])/thread_test_mutex_/g;
s/(?<![A-Za-z0-9_])_thread_test_start1(?![A-Za-z0-9_])/thread_test_start1_/g;
s/(?<![A-Za-z0-9_])_thread_test_start2(?![A-Za-z0-9_])/thread_test_start2_/g;
s/(?<![A-Za-z0-9_])_thread_test_strmap(?![A-Za-z0-9_])/thread_test_strmap_/g;
s/(?<![A-Za-z0-9_])_tor_calloc(?![A-Za-z0-9_])/tor_calloc_/g;
s/(?<![A-Za-z0-9_])_TOR_CHANNEL_INTERNAL(?![A-Za-z0-9_])/TOR_CHANNEL_INTERNAL_/g;
s/(?<![A-Za-z0-9_])_TOR_CIRCUITMUX_EWMA_C(?![A-Za-z0-9_])/TOR_CIRCUITMUX_EWMA_C_/g;
s/(?<![A-Za-z0-9_])_tor_free(?![A-Za-z0-9_])/tor_free_/g;
s/(?<![A-Za-z0-9_])_tor_malloc(?![A-Za-z0-9_])/tor_malloc_/g;
s/(?<![A-Za-z0-9_])_tor_malloc_zero(?![A-Za-z0-9_])/tor_malloc_zero_/g;
s/(?<![A-Za-z0-9_])_tor_memdup(?![A-Za-z0-9_])/tor_memdup_/g;
s/(?<![A-Za-z0-9_])_tor_realloc(?![A-Za-z0-9_])/tor_realloc_/g;
s/(?<![A-Za-z0-9_])_tor_strdup(?![A-Za-z0-9_])/tor_strdup_/g;
s/(?<![A-Za-z0-9_])_tor_strndup(?![A-Za-z0-9_])/tor_strndup_/g;
s/(?<![A-Za-z0-9_])_TOR_TLS_SYSCALL(?![A-Za-z0-9_])/TOR_TLS_SYSCALL_/g;
s/(?<![A-Za-z0-9_])_TOR_TLS_ZERORETURN(?![A-Za-z0-9_])/TOR_TLS_ZERORETURN_/g;
s/(?<![A-Za-z0-9_])__USE_ISOC99(?![A-Za-z0-9_])/_USE_ISOC99_/g;
s/(?<![A-Za-z0-9_])_UsingTestNetworkDefaults(?![A-Za-z0-9_])/UsingTestNetworkDefaults_/g;
s/(?<![A-Za-z0-9_])_val(?![A-Za-z0-9_])/val_/g;
s/(?<![A-Za-z0-9_])_void_for_alignment(?![A-Za-z0-9_])/void_for_alignment_/g;

==============================
 2012-10-12 12:22:13 -04:00
Andrea Shepard
5543c5b202
Fix formatting in various places after 6465/6816 work 2012-10-10 00:48:36 -07:00
Nick Mathewson
751b3aabb5 Merge remote-tracking branch 'public/openssl_1_is_best' 2012-10-04 12:50:41 -04:00
Robert Ransom
cd884c764b Fix documentation for crypto_pk_cmp_keys 
Now that crypto_pk_cmp_keys might return the result of tor_memcmp, there
is no guarantee that it will only return -1, 0, or 1.  (It currently does
only return -1, 0, or 1, but that's a lucky accident due to details of the
current implementation of tor_memcmp and the particular input given to it.)

Fortunately, none of crypto_pk_cmp_keys's callers rely on this behaviour,
so changing its documentation is sufficient.
 2012-09-17 11:02:53 -04:00
Robert Ransom
62babcaf0a Implement and use crypto_pk_eq_keys 2012-09-17 11:02:53 -04:00
Robert Ransom
f3916a6855 Make crypto_pk_cmp_keys do something sane for NULL keys 
Fixes bug 4283; bugfix on r76
(Git commit 01aadefbfc).
 2012-09-17 11:02:52 -04:00
Nick Mathewson
be68c1fb43 Log a notice if we're running with OpenSSL before 1.0.0. 
These versions have some dubious, slow crypto implementations; 1.0.0
is a great improvement, and at this point is pretty mature.
 2012-09-12 19:32:24 -04:00
Nick Mathewson
feabf4148f Drop support for openssl 0.9.7 
097 hasn't seen a new version since 2007; we can drop support too.

This lets us remove our built-in sha256 implementation, and some
checks for old bugs.
 2012-09-12 19:25:58 -04:00
Nick Mathewson
7607ad2bec Detect openssl header version doesn't match runtime version 
We already do this for libevent; let's do it for openssl too.

For now, I'm making it always a warn, since this has caused some
problems in the past.  Later, we can see about making it less severe.
 2012-09-06 11:31:30 -04:00
Nick Mathewson
e3a130a7eb Don't log about Libevent/OpenSSL initialization when all's well 
OTOH, log the Libevent and OpenSSL versions on the first line when
we're starting Tor.
 2012-09-06 11:31:22 -04:00
Nick Mathewson
20d6f787aa Fix "make check-spaces" issues 2012-06-05 00:49:18 -04:00
Nick Mathewson
0fa107a6aa Update copyright dates to 2012; add a few missing copyright statements 2012-06-04 20:58:17 -04:00
Nick Mathewson
173b18c79b Add about 60 more DOCDOC comments to 0.2.3 
Also, try to resolve some doxygen issues.  First, define a magic
"This is doxygen!" macro so that we take the correct branch in
various #if/#else/#endifs in order to get the right documentation.
Second, add in a few grouping @{ and @} entries in order to get some
variables and fields to get grouped together.
 2012-06-04 19:59:08 -04:00
Sebastian Hahn
a5a8296892 Fix clang 3.1 compile warning in crypto.c 
(Tweaked by nickm)
 2012-05-30 11:56:43 -04:00
Nick Mathewson
21e3261914 Bump _WIN32_WINNT to 0x0501 throughout the code 
This tells the windows headers to give us definitions that didn't
exist before XP -- like the ones that we need for IPv6 support.

See bug #5861.  We didn't run into this issue with mingw, since
mingw doesn't respect _WIN32_WINNT as well as it should for some of
its definitions.
 2012-05-14 13:46:37 -04:00
Nick Mathewson
9ffccb3f49 Remove all instances of WIN32_WINNT (without leading _) 
We started adding it in 59e2c77824 back in 2004, 8 years and 3
days ago.  It's time to deprogram ourselves from this cargo cult.
 2012-05-14 13:36:52 -04:00
Nick Mathewson
4db5a1e151 Remove needless check for a buffer that could not be NULL. 
Fixes coverity CID 508: coverity scan doesn't like checking a
variable for non-NULL after it has been definitely dereferenced.

This should take us back down to zero coverity issues.
 2012-04-18 10:38:39 -04:00
Nick Mathewson
ab3197c059 Remove a couple redundant NULL-checks before crypto_cipher_free 
Calling crypto_cipher_free(NULL) is always safe, since (by
convention) all of our xyz_free() functions treat xyz_free(NULL) as
a no-op.

Flagged by coverity scan; fixes CID 508 and 509.
 2012-03-30 10:16:58 -04:00
Nick Mathewson
01905a6ef9 Excise PK_NO_PADDING entirely: Unpadded RSA is silly. 
We never use it, so having it around is pointless.

Suggested by Sebastian
 2012-03-27 22:38:06 -04:00
Nick Mathewson
de0dca0de7 Refactor the API for setting up a block cipher. 
It allows us more flexibility on the backend if the user needs to
specify the key and IV at setup time.
 2012-03-27 22:37:56 -04:00
Nick Mathewson
00b4784575 Remove support for PK_NO_PADDING in crypto_pk_public_hybrid_encrypt 
We never use it, and it would be a stupid thing if we started using it.
 2012-03-27 22:37:55 -04:00
Robert Ransom
cd029f0ca3 Fix crypto_hmac_sha256 documentation comment 2012-02-20 02:47:10 -08:00
Nick Mathewson
5cf9167f91 Use the standard _WIN32, not the Torism MS_WINDOWS or deprecated WIN32 
This commit is completely mechanical; I used this perl script to make it:

 #!/usr/bin/perl -w -i.bak -p

 if (/^\s*\#/) {
     s/MS_WINDOWS/_WIN32/g;
     s/\bWIN32\b/_WIN32/g;
 }
 2012-01-31 15:48:47 -05:00
Nick Mathewson
26e789fbfd Rename nonconformant identifiers. 
Fixes bug 4893.

These changes are pure mechanical, and were generated with this
perl script:

  /usr/bin/perl -w -i.bak -p

  s/crypto_pk_env_t/crypto_pk_t/g;
  s/crypto_dh_env_t/crypto_dh_t/g;
  s/crypto_cipher_env_t/crypto_cipher_t/g;
  s/crypto_digest_env_t/crypto_digest_t/g;

  s/aes_free_cipher/aes_cipher_free/g;
  s/crypto_free_cipher_env/crypto_cipher_free/g;
  s/crypto_free_digest_env/crypto_digest_free/g;
  s/crypto_free_pk_env/crypto_pk_free/g;

  s/_crypto_dh_env_get_dh/_crypto_dh_get_dh/g;
  s/_crypto_new_pk_env_rsa/_crypto_new_pk_from_rsa/g;
  s/_crypto_pk_env_get_evp_pkey/_crypto_pk_get_evp_pkey/g;
  s/_crypto_pk_env_get_rsa/_crypto_pk_get_rsa/g;

  s/crypto_new_cipher_env/crypto_cipher_new/g;
  s/crypto_new_digest_env/crypto_digest_new/g;
  s/crypto_new_digest256_env/crypto_digest256_new/g;
  s/crypto_new_pk_env/crypto_pk_new/g;

  s/crypto_create_crypto_env/crypto_cipher_new/g;

  s/connection_create_listener/connection_listener_new/g;
  s/smartlist_create/smartlist_new/g;
  s/transport_create/transport_new/g;
 2012-01-18 15:53:30 -05:00
Nick Mathewson
73d4dbe103 whitespace and warning fixes for bug4746 2012-01-10 16:53:37 -05:00
Nick Mathewson
7fbf1e225e Merge remote-tracking branch 'asn-mytor/bug4746' 2012-01-10 16:44:03 -05:00
Nick Mathewson
d29a390733 Test for broken counter-mode at runtime 
To solve bug 4779, we want to avoid OpenSSL 1.0.0's counter mode.
But Fedora (and maybe others) lie about the actual OpenSSL version,
so we can't trust the header to tell us if it's safe.

Instead, let's do a run-time test to see whether it's safe, and if
not, use our built-in version.

fermenthor contributed a pretty essential fixup to this patch. Thanks!
 2012-01-10 11:15:35 -05:00
Nick Mathewson
5741aef3dc We no longer need to detect openssl without RAND_poll() 
We require openssl 0.9.7 or later, and RAND_poll() was first added in
openssl 0.9.6.
 2012-01-10 10:40:31 -05:00
Nick Mathewson
85c7d7659e Add macros to construct openssl version numbers 
It's a pain to convert 0x0090813f to and from 0.9.8s-release on the
fly, so these macros should help.
 2012-01-10 10:40:30 -05:00
Sebastian Hahn
2367f7e559 Make sure MAX_DNS_LABEL_SIZE is defined 
MAX_DNS_LABEL_SIZE was only defined for old versions of openssl, which
broke the build. Spotted by xiando. Fixes bug 4413; not in any released
version.
 2012-01-10 06:14:35 +01:00
Nick Mathewson
b1ee1a719d Tweaks for bug4413 fix 
The thing that's limited to 63 bytes is a "label", not a hostname.

Docment input constraints and behavior on bogus inputs.

Generally it's better to check for overflow-like conditions before
than after.  In this case, it's not a true overflow, so we're okay,
but let's be consistent.

pedantic less->fewer in the documentation
 2012-01-09 19:14:51 -05:00
Stephen Palmateer
3fadc074ca Remove (untriggerable) overflow in crypto_random_hostname() 
Fixes bug 4413; bugfix on xxxx.

Hostname components cannot be larger than 63 characters.
This simple check makes certain randlen cannot overflow rand_bytes_len.
 2012-01-09 19:05:05 -05:00
George Kadianakis
d05bc02192 Add an informative header on the 'keys/dynamic_dh_params' file. 2011-12-19 16:06:22 +01:00
Robert Ransom
d688a40a0e Don't crash on startup of a dormant relay 
If a relay is dormant at startup, it will call init_keys before
crypto_set_tls_dh_prime.  This is bad.  Let's make it not so bad, because
someday it *will* happen again.
 2011-12-12 11:25:55 -08:00
Sebastian Hahn
95af91565b Work around a false positive in Coverity. 
Fixes cid 501 and 502.
 2011-12-02 06:16:57 +01:00
George Kadianakis
02708b7d80 Free the global DH parameters in crypto_global_cleanup(). 2011-11-30 13:17:47 -05:00
George Kadianakis
a708e85236 Move crypto_global_cleanup() to the bottom of crypto.c. 2011-11-30 13:17:39 -05:00
Nick Mathewson
da6c136817 Merge remote-tracking branch 'asn-mytor/bug4548_take2' 2011-11-29 18:30:41 -05:00
George Kadianakis
055d6c01ff Write dynamic DH parameters to a file. 
Instead of only writing the dynamic DH prime modulus to a file, write
the whole DH parameters set for forward compatibility. At the moment
we only accept '2' as the group generator.

The DH parameters gets stored in base64-ed DER format to the
'dynamic_dh_params' file.
 2011-11-26 19:29:57 +01:00
George Kadianakis
b31601975b Move DH_GENERATOR to crypto.c. 2011-11-25 17:44:11 +01:00
George Kadianakis
1df6b5a734 Move broken primes to dynamic_dh_modulus.broken. 2011-11-25 17:39:45 +01:00
George Kadianakis
4938bcc06a Do dynamic DH modulus storing in crypto.c. 2011-11-25 17:39:28 +01:00
Nick Mathewson
8143074b3f Use EVP for AES only when hardware accel is present 
Fixes bug 4525, fix on 0.2.3.8-alpha.
 2011-11-25 10:32:00 -05:00
George Kadianakis
1d1d5ae7f8 Finishing touches. 
- Make check-spaces happy.
- Remove a stray header from crypto.h
 2011-11-25 01:08:31 +01:00
George Kadianakis
7c37a664c1 Rename 'dynamic prime' to 'dynamic DH modulus'. 2011-11-25 01:00:58 +01:00
George Kadianakis
bdeb797a13 Notify the user that her computer is generating numbers. 2011-11-25 00:59:47 +01:00
George Kadianakis
5f3f41c234 Make sure that the stored DH prime is safe to use. 2011-11-25 00:33:40 +01:00
George Kadianakis
94076d9e3b Move crypto_get_stored_dynamic_prime() to crypto.c 2011-11-24 22:59:01 +01:00
George Kadianakis
2ef68980a7 Move store_dynamic_prime() to crypto.c. 2011-11-24 22:32:10 +01:00
George Kadianakis
cabb8e54c7 Tone down the logging. 2011-11-24 22:14:09 +01:00
George Kadianakis
8a726dd0dd Implement dynamic prime reading and storing to disk. 2011-11-24 22:13:44 +01:00
George Kadianakis
42bda231ee Make DynamicPrimes SIGHUP-able. 
Instead of passing the DynamicPrimes configuration option to
crypto_global_init(), generate and set a new TLS DH prime when we read
the torrc.
 2011-11-24 22:13:38 +01:00
George Kadianakis
0e71be5d94 Improve code in the dynamic primes realm. 2011-11-24 22:13:19 +01:00
George Kadianakis
fb38e58d14 Improve logging. 2011-11-24 22:13:00 +01:00