Nick Mathewson [Tue, 31 Jan 2012 16:04:27 +0000 (11:04 -0500)]
Fix straggling MS_WINDOWS issues; add a changes file
There was one MS_WINDOWS that remained because it wasn't on a macro
line; a few remaining uses (and the definition!) in configure.in;
and a now-nonsensical stanza of eventdns_tor.h that previously
defined 'WIN32' if it didn't exist.
Roger Dingledine [Wed, 25 Jan 2012 23:54:59 +0000 (18:54 -0500)]
Allow 0.2.3.x clients to use 0.2.2.x bridges.
Previously the client would ask the bridge for microdescriptors, which are
only supported in 0.2.3.x and later, and then fail to bootstrap when it
didn't get the answers it wanted. Fixes bug 4013; bugfix on 0.2.3.2-alpha.
The fix here is to revert to using normal descriptors if any of our
bridges are known to not support microdescs. This is not ideal, a) because
we'll start downloading a microdesc consensus as soon as we get a bridge
descriptor, and that will waste time if we later get a bridge descriptor
that tells us we don't like microdescriptors; and b) by changing our mind
we're leaking to our other bridges that we have an old-version bridge.
The alternate fix would have been to change
we_use_microdescriptors_for_circuits() to ask if *any* of our bridges
can support microdescriptors, and then change the directory logic that
picks a bridge to only select from those that do. For people living in
the future, where 0.2.2.x is obsolete, there won't be a difference.
Note that in either of these potential fixes, we have risk of oscillation
if our one funny-looking bridges goes away / comes back.
Sebastian Hahn [Fri, 20 Jan 2012 22:13:35 +0000 (23:13 +0100)]
Use dead_strip to reduce binary size on OS X
This option seems to be supported all the way back to at least 10.4, so
enabling it for OS X in general should be fine. If not, someone will
yell.
With no libs statically linked, that's a 3% win in binary size, with
just libevent linked statically, this gives us an advantage of 5% in
terms of binary size, and with libevent and openssl statically linked,
we gain over 18% or over 500KB.
Nick Mathewson [Wed, 11 Jan 2012 19:02:59 +0000 (14:02 -0500)]
Convert instances of tor_malloc+tor_snprintf into tor_asprintf
These were found by looking for tor_snprintf() instances that were
preceeded closely by tor_malloc(), though I probably converted some
more snprintfs as well.
(In every case, make sure that the length variable (if any) is
removed, renamed, or lowered, so that anything else that might have
assumed a longer buffer doesn't exist.)
Nick Mathewson [Wed, 11 Jan 2012 19:02:59 +0000 (14:02 -0500)]
Convert instances of tor_snprintf+strdup into tor_asprintf
These were found by looking for tor_snprintf() instances that were
followed closely by tor_strdup(), though I probably converted some
other snprintfs as well.
Nick Mathewson [Wed, 11 Jan 2012 18:44:10 +0000 (13:44 -0500)]
Try to use smartlist_add_asprintf consistently
(To ensure correctness, in every case, make sure that the temporary
variable is deleted, renamed, or lowered in scope, so we can't have
any bugs related to accidentally relying on the no-longer-filled
variable.)
Nick Mathewson [Mon, 9 Jan 2012 22:40:11 +0000 (17:40 -0500)]
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!
Sebastian Hahn [Tue, 25 Jan 2011 15:45:27 +0000 (16:45 +0100)]
Advertise dirport if accountingmax is large enough
When we have an effective bandwidthrate configured so that we cannot
exceed our bandwidth limit in one accounting interval, don't disable
advertising the dirport. Implements ticket 2434.
Sebastian Hahn [Tue, 10 Jan 2012 05:14:35 +0000 (06:14 +0100)]
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.
Nick Mathewson [Tue, 10 Jan 2012 00:14:51 +0000 (19:14 -0500)]
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.