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2112 Commits

Author SHA1 Message Date
Nick Mathewson
f371816209 Merge remote-tracking branch 'origin/maint-0.2.2' 2012-01-11 11:07:37 -05:00
Nick Mathewson
0126150c2d Merge remote-tracking branch 'origin/maint-0.2.1' into maint-0.2.2 2012-01-11 11:07:13 -05:00
Nick Mathewson
8d5c0e58ea Fix a compilation warning for our bug4822 fix on 64-bit linux 2012-01-11 11:06:31 -05:00
Nick Mathewson
5e9d349979 Merge remote-tracking branch 'public/bug4650_nm_squashed' 2012-01-10 17:59:49 -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
dca3c9fff8 Add missing documentation for counter-mode checks 2012-01-10 11:15:46 -05:00
Nick Mathewson
cc5c14b732 Clean up indentation in aes.c 2012-01-10 11:15:42 -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
Nick Mathewson
1e5d66997b Merge remote-tracking branch 'origin/maint-0.2.2' 2012-01-09 16:40:42 -05:00
Nick Mathewson
c78a314e95 Fix comment about TLSv1_method() per comments by wanoskarnet 2012-01-09 16:40:21 -05:00
Roger Dingledine
ecdea4eeaf Merge branch 'maint-0.2.2' 2012-01-08 12:17:16 -05:00
Roger Dingledine
1416dd47a9 add a note from wanoskarnet 
he disagrees about what the code that we decided not to use would do
 2012-01-08 09:03:03 -05:00
Emile Snyder
d7eaa4b396 Change to use SSL_state_string_long() instead of homebrew ssl_state_to_string() function. 2012-01-06 05:31:34 -08:00
Nick Mathewson
ef69f2f2ab Merge remote-tracking branch 'origin/maint-0.2.2' 2012-01-05 14:17:44 -05:00
Nick Mathewson
ccd8289958 Merge remote-tracking branch 'origin/maint-0.2.1' into maint-0.2.2 2012-01-05 14:16:30 -05:00
Robert Ransom
4752b34879 Log at info level when disabling SSLv3 2012-01-05 12:28:56 -05:00
Nick Mathewson
db78fe4589 Disable SSLv3 when using a not-up-to-date openssl 
This is to address bug 4822, and CVE-2011-4576.
 2012-01-05 12:28:55 -05:00
Roger Dingledine
ff03347579 note some dead code. if i'm right, should this be removed? 2012-01-05 05:37:06 -05:00
Sebastian Hahn
98959f63ac Disallow disabling DisableDebuggerAttachment on runnning Tor 
Also, have tor_disable_debugger_attach() return a tristate of
success/failure/don't-know-how , and only log appropriately.
 2012-01-04 15:09:02 -05:00
Sebastian Hahn
5d9be49540 Fix a check-spaces violation in compat.c 
Also fix a comment typo
 2011-12-30 23:30:57 +01:00
Nick Mathewson
9f06ec0c13 Add interface enumeration based on SIOCGIFCONF for older unixes 2011-12-28 16:34:16 -05:00
Nick Mathewson
5d44a6b334 Multicast addresses, if any were configured, would not be good if addrs 2011-12-28 16:34:16 -05:00
Nick Mathewson
aa529f6c32 Use getifaddrs, not connect+getsockname, to find our address 
This resolves bug1827, and lets us avoid freaking people out.
Later, we can use it to get a complete list of our interfaces.
 2011-12-28 16:34:16 -05:00
Nick Mathewson
78f43c5d03 Require openssl 1.0.0a for using openssl's ctr-mode implementation 
Previously we required 1.0.0, but there was a bug in the 1.0.0 counter
mode. Found by Pascal. Fixes bug 4779.

A more elegant solution would be good here if somebody has time to code
one.
 2011-12-27 20:31:23 -05:00
Nick Mathewson
85d7811456 Merge remote-tracking branch 'origin/maint-0.2.2' 2011-12-26 17:58:51 -05:00
Sebastian Hahn
da876aec63 Provide correct timeradd/timersup replacements 
Bug caught and patch provided by Vektor. Fixes bug 4778.t
 2011-12-25 23:19:08 +01:00
Kamran Riaz Khan
a1c1fc72d1 Prepend cwd for relative config file paths. 
Modifies filenames which do not start with '/' or '.' on non-Windows
platforms; uses _fullpath on Windows.
 2011-12-22 10:17:48 -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
0f8026ec23 Some more check-spaces stuff 
This re-applies a check-spaces fix that was part of
7920ea55b8 and got reverted along with the
rest of that commit in df1f72329a.
 2011-12-08 08:47:09 +01:00
Nick Mathewson
71ecfaa52f indent; add comment 
This re-applies 40a87c4c08 which got
accidentally reverted in 75134c6c86.
Thanks asn for spotting this.
 2011-12-08 08:45:24 +01:00
Sebastian Hahn
ee8b4b4e6e appease check-spaces 
This re-applies f77f9bddb8 which got
accidentally reverted in 53f535aeb8.
Thanks asn for spotting this.
 2011-12-08 08:43:32 +01:00
Nick Mathewson
0ebcf345ce Revert "Refactor the SSL_set_info_callback() callbacks." 
This reverts commit 69a821ea1c.
 2011-12-06 19:49:21 -05:00
Nick Mathewson
9727d21f68 Revert "Detect renegotiation when it actually happens." 
This reverts commit 4fd79f9def.
 2011-12-06 19:49:21 -05:00
Nick Mathewson
e09dd43ab3 Revert "Detect and deny excess renegotiations attempts." 
This reverts commit ecd239e3b5.
 2011-12-06 19:49:21 -05:00
Nick Mathewson
021ff31ba6 Revert "Get rid of tor_tls_block_renegotiation()." 
This reverts commit 340809dd22.
 2011-12-06 19:49:21 -05:00
Nick Mathewson
fa74af0cfa Revert "Also handle needless renegotiations in SSL_write()." 
This reverts commit e2b3527106.
 2011-12-06 19:49:20 -05:00
Nick Mathewson
45c46129ed Revert "Fix issues pointed out by nickm." 
This reverts commit e097bffaed.
 2011-12-06 19:49:20 -05:00
Nick Mathewson
616b60cef3 Revert "Use callback-driven approach to block renegotiations." 
This reverts commit 406ae1ba5a.
 2011-12-06 19:49:20 -05:00
Nick Mathewson
53f535aeb8 Revert "appease check-spaces" 
This reverts commit f77f9bddb8.
 2011-12-06 19:49:20 -05:00
Nick Mathewson
df1f72329a Revert "Refactor tor_event_base_once to do what we actually want" 
This reverts commit 7920ea55b8.
 2011-12-06 19:49:20 -05:00
Nick Mathewson
17880e4c0a Revert "Fix some wide lines in tortls.c" 
This reverts commit e8dde3aabd.
 2011-12-06 19:49:20 -05:00
Nick Mathewson
e83e720c8b Revert "use event_free() wrapper; fix bug 4582" 
This reverts commit 9a88c0cd32.
 2011-12-06 19:49:20 -05:00
Nick Mathewson
acc1806eb8 Revert "Don't schedule excess_renegotiations_callback unless it's set" 
This reverts commit 617617e21a.
 2011-12-06 19:49:20 -05:00
Nick Mathewson
75134c6c86 Revert "indent; add comment" 
This reverts commit 40a87c4c08.
 2011-12-06 19:49:20 -05:00
Nick Mathewson
135a5102a3 Revert "Make pending libevent actions cancelable" 
This reverts commit aba25a6939.
 2011-12-06 19:49:20 -05:00
Nick Mathewson
50fd99d7ef Revert "Set renegotiation callbacks immediately on tls inititation" 
This reverts commit e27a26d568.
 2011-12-06 19:49:19 -05:00
Nick Mathewson
d9edee3a3b Merge remote-tracking branch 'origin/maint-0.2.2' 2011-12-02 16:10:17 -05:00
Nick Mathewson
2b5a035604 tor_accept_socket() should take tor_addr_t for listener arg 
Fixes bug 4535; bugfix on 0.2.2.28-beta; found by "troll_un"
 2011-12-02 16:09:16 -05:00
Nick Mathewson
0920cd02f4 Merge remote-tracking branch 'origin/maint-0.2.2' 2011-12-02 15:38:29 -05:00
Nick Mathewson
b7015603fa Fix bug 4530; check return val of tor_addr_lookup correctly 
Fix on 0.2.1.5-alpha; reported by troll_un
 2011-12-02 15:37:24 -05:00
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
29db095a35 Merge remote-tracking branch 'origin/maint-0.2.2' 2011-11-30 12:41:08 -05:00
Linus Nordberg
f786307ab7 First chunk of support for bridges on IPv6 
Comments below focus on changes, see diff for added code.

New type tor_addr_port_t holding an IP address and a TCP/UDP port.

New flag in routerinfo_t, ipv6_preferred.  This should go in the
node_t instead but not now.

Replace node_get_addr() with
- node_get_prim_addr() for primary address, i.e. IPv4 for now
- node_get_pref_addr() for preferred address, IPv4 or IPv6.

Rename node_get_addr_ipv4h() node_get_prim_addr_ipv4h() for
consistency.  The primary address will not allways be an IPv4 address.
Same for node_get_orport() -> node_get_prim_orport().

Rewrite node_is_a_configured_bridge() to take all OR ports into account.

Extend argument list to extend_info_from_node and
extend_info_from_router with a flag indicating if we want to use the
routers primary address or the preferred address.  Use the preferred
address in as few situtations as possible for allowing clients to
connect to bridges over IPv6.
 2011-11-30 11:55:45 -05:00
Nick Mathewson
8bb23c7def Merge branch 'bug4587_v2' 2011-11-29 19:15:40 -05:00
Nick Mathewson
e27a26d568 Set renegotiation callbacks immediately on tls inititation 
This way, we can't miss a renegotiation attempt in a v2 handshake,
or miss excess renegotiation attempts.  Partial fix for bug 4587.
 2011-11-29 19:10:19 -05:00
Nick Mathewson
da6c136817 Merge remote-tracking branch 'asn-mytor/bug4548_take2' 2011-11-29 18:30:41 -05:00
Nick Mathewson
aba25a6939 Make pending libevent actions cancelable 
This avoids a dangling pointer issue in the 3412 code, and should
fix bug 4599.
 2011-11-29 17:08:29 -05:00
Nick Mathewson
40a87c4c08 indent; add comment 2011-11-27 09:24:41 -05:00
Nick Mathewson
e665ec6409 Merge remote-tracking branch 'asn/bug4584' 2011-11-27 09:18:55 -05:00
Nick Mathewson
617617e21a Don't schedule excess_renegotiations_callback unless it's set 
Partial fix for bug 4587; reported by "frosty_un".
 2011-11-27 08:21:59 -05:00
George Kadianakis
b42ff6545a Use random bytes as our certificate serial numbers. 
Instead of using time(NULL) in our certificate serial numbers, use
eight random bytes as suggested in proposal 179.
 2011-11-27 08:20:17 +01:00
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
f28014bf1a Introduce write_bytes_to_new_file(). 
Introduce write_bytes_to_new_file(), a function which writes bytes to
a file only if that file did not exist.
 2011-11-26 18:56:49 +01:00
Nick Mathewson
9a88c0cd32 use event_free() wrapper; fix bug 4582 2011-11-25 19:09:48 -05:00
Nick Mathewson
e8dde3aabd Fix some wide lines in tortls.c 2011-11-25 17:22:46 -05:00
Nick Mathewson
7920ea55b8 Refactor tor_event_base_once to do what we actually want 
This version avoids the timeout system entirely, gives a nicer
interface, and lets us manage allocation explicitly.
 2011-11-25 17:18:54 -05:00
Nick Mathewson
e5f2f10844 Merge remote-tracking branch 'asn/bug4312' 2011-11-25 17:00:47 -05:00
Nick Mathewson
d6c18c5804 Make process_handle_t private and fix some unit tests 
Let's *not* expose more cross-platform-compatibility structures, or
expect code to use them right.

Also, don't fclose() stdout_handle and stdin_handle until we do
tor_process_handle_destroy, or we risk a double-fclose.
 2011-11-25 16:47:25 -05:00
Nick Mathewson
093e6724c7 Merge remote-tracking branch 'asn/bug3472_act2' 2011-11-25 16:00:31 -05:00
Nick Mathewson
cb8059b42d Merge remote-tracking branch 'sebastian/pure_removal' 2011-11-25 14:54:04 -05:00
Sebastian Hahn
75d8ad7320 Purge ATTR_PURE from the code 
We're using it incorrectly in many cases, and it doesn't help as far as
we know.
 2011-11-25 17:57:50 +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
25c9e3aab9 Merge branch 'more_aes_hackery_rebased' 
Conflicts:
	changes/aes_hackery
 2011-11-25 10:36:13 -05:00
Nick Mathewson
9814019a54 Use openssl's counter mode implementation when we have 1.0.0 or later 
This shaves about 7% off our per-cell AES crypto time for me; the
effect for accelerated AES crypto should be even more, since the AES
calculation itself will make an even smaller portion of the
counter-mode performance.

(We don't want to do this for pre-1.0.0 OpenSSL, since our AES_CTR
implementation was actually faster than OpenSSL's there, by about
10%.)

Fixes issue #4526.
 2011-11-25 10:32:21 -05:00
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
Peter Palfrader
86be8fcf0a Handle build-trees better. 
Properly create git revision and source file sha1sums include files when
building tor not in its source tree but in a dedicated build tree.
 2011-11-24 23:56:01 -05:00
Nick Mathewson
eaa3a379f0 Move disable-debugger-attachment fn to compat where it belongs. Fix whitespace 2011-11-24 23:45:47 -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
George Kadianakis
1797e0a39e Make it compile. 2011-11-24 22:12:44 +01:00