Commit Graph

6515 Commits

Author SHA1 Message Date
Nick Mathewson
27a8a56e6c Fix a consensus-extension bug found by outofwords
When the bandwidth-weights branch added the "directory-footer"
token, and began parsing the directory footer at the first
occurrence of "directory-footer", it made it possible to fool the
parsing algorithm into accepting unsigned data at the end of a
consensus or vote.  This patch fixes that bug by treating the footer
as starting with the first "directory-footer" or the first
"directory-signature", whichever comes first.
2010-02-27 17:07:05 -05:00
Nick Mathewson
1c25077b1c fix some wide lines in routerparse.c 2010-02-27 16:33:22 -05:00
Nick Mathewson
937b5cdd41 Merge remote branch 'origin/maint-0.2.1'
Conflicts:
	ChangeLog
	src/or/routerparse.c
2010-02-27 15:34:02 -05:00
Sebastian Hahn
b67657bd95 Properly handle non-terminated strings
Treat strings returned from signed_descriptor_get_body_impl() as not
NUL-terminated. Since the length of the strings is available, this is
not a big problem.

Discovered by rieo.
2010-02-27 02:13:22 +01:00
Sebastian Hahn
1c39dbd53a Don't segfault when checking the consensus 2010-02-26 08:01:40 +01:00
Nick Mathewson
1e1d471002 Don't believe unauthenticated info in a consensus.
Don't allow anything but directory-signature tokens in a consensus after
the first directory-signature token.  Fixes bug in bandwidth-weights branch.
Found by "outofwords."
2010-02-26 01:02:20 -05:00
Sebastian Hahn
86828e2004 Proper NULL checking in circuit_list_path_impl()
Another dereference-then-NULL-check sequence. No reports of this bug
triggered in the wild. Fixes bugreport 1256.

Thanks to ekir for discovering and reporting this bug.
2010-02-26 05:53:26 +01:00
Sebastian Hahn
f36c36f4a8 Proper NULL checking for hsdesc publication
Fix a dereference-then-NULL-check sequence. This bug wasn't triggered
in the wild, but we should fix it anyways in case it ever happens.
Also make sure users get a note about this being a bug when they
see it in their log.

Thanks to ekir for discovering and reporting this bug.
2010-02-26 05:49:34 +01:00
Nick Mathewson
512cebadad For integers, if !(E<G), then we can infer that E>=G.
This means that "if (E<G) {abc} else if (E>=G) {def}" can be replaced with
"if (E<G) {abc} else {def}"

Doing the second test explicitly made my mingw gcc nervous that we might
never be initializing casename.
2010-02-25 17:00:14 -05:00
Nick Mathewson
eb10d441b6 Fix 64-bit printf issues in consensus-bw-weights5-merge.
For my 64-bit Linux system running with GCC 4.4.3-fc12-whatever, you
can't do 'printf("%lld", (int64_t)x);' Instead you need to tell the
compiler 'printf("%lld", (long long int)x);' or else it doesn't
believe the types match.  This is why we added U64_PRINTF_ARG; it
looks like we needed an I64_PRINTF_ARG too.
2010-02-25 16:22:40 -05:00
Nick Mathewson
2ab3389ed6 Merge remote branch 'mikeperry/consensus-bw-weights5-merge'
Conflicts:
	ChangeLog
2010-02-25 16:22:29 -05:00
Mike Perry
215930a7de Check snprintf return values in format_networkstatus_vote.
Maybe this is what parakeep was complaining about? Really wish he
would stick around more. Playing these guessing games is not fun :(
2010-02-25 11:59:35 -08:00
Mike Perry
50d6960332 Cast our weights down to ints from int64.
They are capped to be between 0 and weight_scale (10000) by the code
just before the snprintf.
2010-02-25 11:42:45 -08:00
Sebastian Hahn
2917c0596c Restrict PerConnBWRate|Burst to INT32_MAX, update manpage
All other bandwidthrate settings are restricted to INT32_MAX, but
this check was forgotten for PerConnBWRate and PerConnBWBurst. Also
update the manpage to reflect the fact that specifying a bandwidth
in terabytes does not make sense, because that value will be too
large.
2010-02-25 12:33:15 +01:00
Mike Perry
0da26162a3 Make unit tests work.
Still not sure why they generate an empty consensus document..
Too much frobbing going on there.
2010-02-24 11:17:31 -08:00
Sebastian Hahn
c8f154e173 Proper NULL checking for hsdesc publication
Fix a dereference-then-NULL-check sequence. This bug wasn't triggered
in the wild, but we should fix it anyways in case it ever happens.
Also make sure users get a note about this being a bug when they
see it in their log.

Thanks to ekir for discovering and reporting this bug.
2010-02-23 17:09:02 +01:00
Sebastian Hahn
7681e355ed Fix another coverity-spotted memleak 2010-02-23 15:05:39 +01:00
Mike Perry
b3fde4d309 Add consensus method #defines. 2010-02-22 18:43:13 -08:00
Mike Perry
f4d6315afa Remove misc unnecessary newlines found by new check. 2010-02-22 16:52:11 -08:00
Mike Perry
245be159af Always weight routers by bandwidth.
Also always predict that we need a high capacity circuit or internal
circuit.
2010-02-22 16:52:11 -08:00
Mike Perry
87a0430a74 Clearly mark directory footer so we parse the new weight line. 2010-02-22 16:52:11 -08:00
Mike Perry
931e073a4f Implement bw weighting selection algorithm. 2010-02-22 16:52:11 -08:00
Mike Perry
df1ef2f0f0 Add parsing+verification for bw weight values. 2010-02-22 16:52:11 -08:00
Mike Perry
f9d40649fe Perform calculation of consensus bandwidth weights.
Also add bwweightscale consensus param. Use it as our
fixed-point calculation width.
2010-02-22 16:52:11 -08:00
Nick Mathewson
295e6557a9 Merge remote branch 'sebastian/coverity' 2010-02-22 12:46:43 -05:00
Nick Mathewson
d35b8dc582 Make expand_filename into a tor_strdup() alias on windows.
On Windows, we don't have a notion of ~ meaning "our homedir", so we
were deliberately using an #ifdef to avoid calling expand_filename()
in multiple places.  This is silly: The right place to turn a function
into a no-op on a single platform is in the function itself, not in
every single call-site.
2010-02-22 12:42:31 -05:00
Sebastian Hahn
1dfbec482c Remove some redundant code in options_save_current()
get_torrc_fname() does the same thing we did in this code, so let's
replace it.
2010-02-22 12:21:58 +01:00
Sebastian Hahn
b65ad83ebe Break early on unknown extendcircuit purpose
Don't continue handling EXTENDCIRCUIT messages when we get an
unknown purpose.
2010-02-22 10:57:11 +01:00
Sebastian Hahn
dcf85eb158 Fix a memory leak, found by coverity 2010-02-22 10:56:54 +01:00
Sebastian Hahn
e391a497ec Remove some redundand code in control.c
Found by coverity
2010-02-22 10:41:46 +01:00
Sebastian Hahn
5aa9610dd6 network-status-version must come first in a vote/consensus
Spec conformance issue: The code didn't force the network-status-version
token to be the first token in a v3 vote or consensus.

Problem discovered by Parakeep.
2010-02-22 09:16:26 +01:00
Nick Mathewson
0eb03bc6dd Merge remote branch 'public/cbt-status'
Conflicts:
	ChangeLog
2010-02-20 18:35:19 -05:00
Nick Mathewson
391f75d792 Merge remote branch 'sebastian/bug1143' 2010-02-19 16:58:24 -05:00
Sebastian Hahn
408a828b1f Make the DNSPort option work with libevent 2.x
We need to use evdns_add_server_port_with_base() when configuring
our DNS listener, because libevent segfaults otherwise. Add a macro
in compat_libevent.h to pick the correct implementation depending
on the libevent version.

Fixes bug 1143, found by SwissTorExit
2010-02-19 22:36:53 +01:00
Nick Mathewson
061ffbd7d5 Future-proof the control protocol by ignoring unrecognized keyword args 2010-02-18 12:49:48 -05:00
Nick Mathewson
2d95e02914 Make more arguments in control.c properly case-insensitive. 2010-02-18 12:49:26 -05:00
Mike Perry
2b95d1c0ee Describe the recent timeouts reallocation behavior. 2010-02-18 09:08:32 -08:00
Mike Perry
2258125e1a Move CBT params into consensus. 2010-02-18 09:08:31 -08:00
Mike Perry
f459388c29 Add an event for a case where we drop guards.
Also add a comment about an odd CBT timeout edgecase.
2010-02-18 09:08:31 -08:00
Mike Perry
ac68704f07 Allow "EXTENDCIRCUIT 0" to omit a path. 2010-02-18 09:08:31 -08:00
Mike Perry
8512e33773 Add BUILDTIMEOUT_SET event for CBT stress testing. 2010-02-18 09:08:31 -08:00
Nick Mathewson
715f104eeb Merge remote branch 'origin/maint-0.2.1'
Conflicts:
	ChangeLog
	configure.in
	contrib/tor-mingw.nsi.in
	src/win32/orconfig.h
2010-02-18 12:01:56 -05:00
Nick Mathewson
4e082ec84b Build correctly with Libevent 2.0.4-alpha and later 2010-02-15 16:47:47 -05:00
Roger Dingledine
3e6a37e61e new dannenberg address; make moria2's demise official. 2010-02-12 14:31:08 -05:00
Sebastian Hahn
fe18275563 Add Windows version detection for Vista and 7
Vista is Windows 6.0, and 7 is Windows 6.1. Fixes bug 1097.

Also fix a coding style violation.
2010-02-10 08:40:44 +01:00
Nick Mathewson
a6a1b8b815 Merge remote branch 'origin/maint-0.2.1' 2010-02-09 12:58:25 -05:00
Nick Mathewson
a4065cd832 Merge remote branch 'sebastian/bug925' 2010-02-09 12:50:54 -05:00
Nick Mathewson
6dd71d314d Merge remote branch 'sebastian/bug1238' 2010-02-09 12:50:45 -05:00
Nick Mathewson
c0d682686a Make tor_addr_copy() conform to memcpy requirements
The src and dest of a memcpy() call aren't supposed to overlap,
but we were sometimes calling tor_addr_copy() as a no-op.

Also, tor_addr_assign was a redundant copy of tor_addr_copy(); this patch
removes it.
2010-02-09 12:32:10 -05:00
Sebastian Hahn
253fd21ae1 Fix a whitespace violation 2010-02-09 09:10:07 +01:00