Commit Graph

11182 Commits

Author SHA1 Message Date
Nick Mathewson
d0a91386e5 Don't crash when accountingmax is set in non-server Tors
We use a hash of the identity key to seed a prng to tell when an
accounting period should end.  But thanks to the bug998 changes,
clients no longer have server-identity keys to use as a long-term seed
in accounting calculations.  In any case, their identity keys (as used
in TLS) were never never fixed.  So we can just set the wakeup time
from a random seed instead there.  Still open is whether everybody
should be random.

This patch fixes bug 2235, which was introduced in 0.2.2.18-alpha.

Diagnosed with help from boboper on irc.
2011-10-26 14:20:47 +02:00
Sebastian Hahn
3a890b3b70 Properly refcount client_identity_key
In a2bb0bf we started using a separate client identity key. When we are
in "public server mode" (that means not a bridge) we will use the same
key. Reusing the key without doing the proper refcounting leads to a
segfault on cleanup during shutdown. Fix that.

Also introduce an assert that triggers if our refcount falls below 0.
That should never happen.
2011-10-26 14:17:01 +02:00
Nick Mathewson
dc557e8164 Add some asserts to get_{tlsclient|server}_identity_key
We now require that:
  - Only actual servers should ever call get_server_identity_key
  - If you're being a client or bridge, the client and server keys should
    differ.
  - If you're being a public relay, the client and server keys
    should be the same.
2011-10-26 14:16:54 +02:00
Nick Mathewson
2a2301e411 Rename get_client_identity_key to get_tlsclient_identity_key 2011-10-26 14:16:34 +02:00
Robert Ransom
59e565e2a2 Maintain separate server and client identity keys when appropriate.
Fixes a bug described in ticket #988.

Conflicts:

	src/or/main.c
	src/or/router.c
2011-10-26 14:16:20 +02:00
Nick Mathewson
299a78c5fe Make crypto_free_pk_env tolerate NULL arg in 0.2.1. Error-proofing against bug 988 backport 2011-10-26 14:14:05 +02:00
Robert Ransom
9976df9e56 Maintain separate server and client TLS contexts.
Fixes bug #988.

Conflicts:

	src/or/main.c
	src/or/router.c
2011-10-26 14:13:55 +02:00
Robert Ransom
8781640111 Refactor tor_tls_context_new:
* Make tor_tls_context_new internal to tortls.c, and return the new
  tor_tls_context_t from it.

* Add a public tor_tls_context_init wrapper function to replace it.

Conflicts:

	src/or/main.c
	src/or/router.c
2011-10-26 14:08:36 +02:00
Robert Ransom
07ab559a8e Add public_server_mode function. 2011-10-26 14:03:43 +02:00
Nick Mathewson
c5a3664f27 Fix zlib macro brokenness on osx with zlib 1.2.4 and higher.
From the code:
   zlib 1.2.4 and 1.2.5 do some "clever" things with macros.  Instead of
   saying "(defined(FOO) ? FOO : 0)" they like to say "FOO-0", on the theory
   that nobody will care if the compile outputs a no-such-identifier warning.

   Sorry, but we like -Werror over here, so I guess we need to define these.
   I hope that zlib 1.2.6 doesn't break these too.

Possible fix for bug 1526.
2011-10-26 07:30:11 -04:00
Karsten Loesing
ee545cd4cb Update to the October 2011 GeoIP database. 2011-10-13 10:13:40 -04:00
Karsten Loesing
679f617345 Update to the September 2011 GeoIP database. 2011-09-15 16:33:36 -04:00
Roger Dingledine
62ec584a30 Generate our ssl session certs with a plausible lifetime
Nobody but Tor uses certs on the wire with 2 hour lifetimes,
and it makes us stand out. Resolves ticket 4014.
2011-09-13 18:24:45 -04:00
Karsten Loesing
c75ee94ab4 Update to the August 2011 GeoIP database. 2011-08-08 16:57:01 +02:00
Roger Dingledine
51d6e95023 update to the july 2011 geoip db 2011-07-07 13:28:36 -04:00
Nick Mathewson
021cf3f052 Merge branches 'cov217_021' and 'cid_450' into maint-0.2.1 2011-07-01 12:54:51 -04:00
Nick Mathewson
959da6b7f2 Use strlcpy in create_unix_sockaddr()
Using strncpy meant that if listenaddress were ever >=
sizeof(sockaddr_un.sun_path), we would fail to nul-terminate
sun_path.  This isn't a big deal: we never read sun_path, and the
kernel is smart enough to reject the sockaddr_un if it isn't
nul-terminated.  Nonetheless, it's a dumb failure mode.  Instead, we
should reject addresses that don't fit in sockaddr_un.sun_path.

Coverity found this; it's CID 428.  Bugfix on 0.2.0.3-alpha.
2011-07-01 12:54:24 -04:00
Nick Mathewson
46297bc7bd Fix a rare memory leak in rend_cache_store
When we rejected a descriptor for not being the one we wanted, we
were letting the parsed descriptor go out of scope.

Found by Coverity; CID # 30.

Bugfix on 0.2.1.26.

(No changes file yet, since this is not in any 0.2.1.x release.)
2011-07-01 12:54:19 -04:00
Nick Mathewson
d25feadebb Fix insanely large stack_allocation in log_credential_status
I'm not one to insist on C's miserly stack limits, but allocating a
256K array on the stack is too much even for me.

Bugfix on 0.2.1.7-alpha.  Found by coverity.  Fixes CID # 450.
2011-07-01 12:38:05 -04:00
Robert Ransom
010b8dd4f6 Abandon rendezvous circuits on SIGNAL NEWNYM 2011-06-17 15:22:23 -04:00
Roger Dingledine
bf4b819aae move to the june 1 2011 maxmind geoip db 2011-06-05 11:12:28 -04:00
Nick Mathewson
f43aceb0f1 Fix typo in changes/bug2574. Thanks, rransom 2011-05-28 02:13:04 -04:00
Nick Mathewson
ee72557d52 Merge branch 'bug2574' into maint-0.2.1 2011-05-28 02:07:48 -04:00
Nick Mathewson
be76850995 Work correctly if your nameserver is ::1
We had all the code in place to handle this right... except that we
were unconditionally opening a PF_INET socket instead of looking at
sa_family.  Ow.

Fixes bug 2574; not a bugfix on any particular version, since this
never worked before.
2011-05-23 17:42:38 -04:00
Nick Mathewson
0d94f78705 rm files for changes merged in all of release021, release022, master 2011-05-16 16:17:35 -04:00
Nick Mathewson
4a22046c86 squash! Add crypto_pk_check_key_public_exponent function
Rename crypto_pk_check_key_public_exponent to crypto_pk_public_exponent_ok:
it's nice to name predicates s.t. you can tell how to interpret true
and false.
2011-05-16 14:45:06 -04:00
Robert Ransom
987190c2bc Require that certain public keys have public exponent 65537 2011-05-16 14:28:46 -04:00
Robert Ransom
d2629f78a0 Add crypto_pk_check_key_public_exponent function 2011-05-16 14:07:34 -04:00
Robert Ransom
7571e9f1cb Check fetched rendezvous descriptors' service IDs 2011-05-16 14:07:24 -04:00
Nick Mathewson
00ff80e0ae Fixup whitespace issues from 3122 commit 2011-05-15 20:06:36 -04:00
Nick Mathewson
10d670674a Another doc tweak on tor_memcmp: <b>b</b>, not <b>. 2011-05-15 19:56:05 -04:00
Roger Dingledine
b48f83ab8c minor tweaks to 4b19730c82 2011-05-15 19:20:42 -04:00
Nick Mathewson
1f678277a1 Merge remote-tracking branch 'public/bug3122_memcmp_squashed' into maint-0.2.1 2011-05-12 19:20:40 -04:00
Nick Mathewson
d1c7f65a8e Merge branch 'bug3135' into maint-0.2.1 2011-05-11 22:49:44 -04:00
Nick Mathewson
13847b8db6 Fix crash when read_file_to_string() fails in SAVECONF
The new behavior is to try to rename the old file if there is one there
that we can't read.  In all likelihood, that will fail too, but at least
we tried, and at least it won't crash.
2011-05-11 22:05:41 -04:00
Nick Mathewson
59f9097d5c Hand-conversion and audit phase of memcmp transition
Here I looked at the results of the automated conversion and cleaned
them up as follows:

   If there was a tor_memcmp or tor_memeq that was in fact "safe"[*] I
   changed it to a fast_memcmp or fast_memeq.

   Otherwise if there was a tor_memcmp that could turn into a
   tor_memneq or tor_memeq, I converted it.

This wants close attention.

[*] I'm erring on the side of caution here, and leaving some things
as tor_memcmp that could in my opinion use the data-dependent
fast_memcmp variant.
2011-05-11 16:12:51 -04:00
Nick Mathewson
db7b2a33ee Automated conversion of memcmp to tor_memcmp/tor_mem[n]eq
This commit is _exactly_ the result of

perl -i -pe 's/\bmemcmp\(/tor_memcmp\(/g' src/*/*.[ch]
perl -i -pe 's/\!\s*tor_memcmp\(/tor_memeq\(/g' src/*/*.[ch]
perl -i -pe 's/0\s*==\s*tor_memcmp\(/tor_memeq\(/g' src/*/*.[ch]
perl -i -pe 's/0\s*!=\s*tor_memcmp\(/tor_memneq\(/g' src/*/*.[ch]
git checkout src/common/di_ops.[ch]
git checkout src/or/test.c
git checkout src/common/test.h
2011-05-11 16:12:51 -04:00
Nick Mathewson
1d703ed22b Add a "di_ops.h" include to util.h 2011-05-11 16:12:51 -04:00
Nick Mathewson
4b19730c82 Add a data-independent variant of memcmp and a d-i memeq function.
The tor_memcmp code is by Robert Ransom, and the tor_memeq code is
by me.  Both incorporate some ideas from DJB's stuff.
2011-05-11 16:12:33 -04:00
Roger Dingledine
e7b10e5ecf Update to the May 1 2011 Maxmind GeoLite Country database 2011-05-10 23:04:11 -04:00
Sebastian Hahn
8a36f21251 Fix a failure case of connection_ap_handshake_attach_circuit()
tor_fragile_assert() might be a no-op, so we have to return something
here to indicate failure to the caller.
2011-04-28 18:14:50 +02:00
Robert Ransom
f1cf9bd74d Fix a bug introduced by purging rend_cache on NEWNYM
If the user sent a SIGNAL NEWNYM command after we fetched a rendezvous
descriptor, while we were building the introduction-point circuit, we
would give up entirely on trying to connect to the hidden service.

Original patch by rransom slightly edited to go into 0.2.1
2011-04-28 18:14:50 +02:00
Robert Ransom
2ad18ae736 Allow rend_client_send_introduction to fail transiently
i.e. without closing the AP connection.
2011-04-28 18:14:50 +02:00
Robert Ransom
440e48ddf2 Forget all rendezvous client state on SIGNAL NEWNYM 2011-04-28 18:14:50 +02:00
Nick Mathewson
43ffd023e9 Make SIZE_T_CEILING unsigned; add a signed SSIZE_T_CEILING
None of the comparisons were _broken_ previously, but avoiding
signed/unsigned comparisons makes everybody happier.

Fixes bug2475.
2011-04-26 13:03:58 -04:00
Nick Mathewson
e98583594d Fix a bug in removing DNSPort requests from their circular list
Under heavy load, this could result in an assertion failure.  Fix for
bug 2933; bugfix on 0.2.0.10-alpha.
2011-04-21 13:39:00 -04:00
Nick Mathewson
dfc9c6a0f9 Merge remote-tracking branch 'rransom/bug2750-v3' into maint-0.2.1 2011-04-19 12:30:50 -04:00
Nick Mathewson
cfd7b118a7 Ouch: correctly tabify the micro-revision.i target in Makefile.am (0.2.1 only) 2011-04-19 12:29:20 -04:00
Robert Ransom
adc31001c2 Add an XXX 2011-04-18 13:25:48 -07:00
Robert Ransom
bfebc942ea Correct the warning emitted when rejecting an oversized HS desc 2011-04-18 13:17:40 -07:00