svn:r3095

New circuit building strategy: keep a list of ports that we've used in                     the past 6 hours, and always try to have 2 circuits open or on the way
that will handle each such port. (We can extend this to include addresses
if exit policies shift to require that.) Seed us with port 80 so web
browsers won't complain that Tor is "slow to start up".

This was necessary because our old circuit building strategy just involved
counting circuits, and as time went by we would build up a big pile of
circuits that had peculiar exit policies (e.g. only exit to 9001-9100)
which would take up space in the circuit pile but never get used.

Fix router_compare_addr_to_addr_policy: it was not treating a port of *
as always matching, so we were picking reject *:* nodes as exit nodes too.

If you haven't used a clean circuit in an hour, throw it away, just to
be on the safe side.

This means after 6 hours a totally unused Tor client will have no
circuits open.


svn:r3078

sometimes picking middleman nodes as our last hop, which wasn't
very useful.


svn:r3075

svn:r3052

just to be extra paranoidly safe


svn:r3050

svn:r3019

svn:r3003

svn:r2989

svn:r2954

svn:r2926

Resolve a bunch of FIXME items; mark a lot more for attention; ask for clarification on some.  Turn all XXXX008 ("showstopper for 0.0.8 release") items into XXXX009 or XXXX, since plainly they were not showstoppers for 0.0.8.  Add/clean some docs.


svn:r2808

Normalize whitespace; add a "tell me about all the unnormalized whitespace" target; fix a braino in dirserv.c


svn:r2758

svn:r2755

Break connection_consider_empty_buckets() out of
connection_read_bucket_decrement().


svn:r2698

svn:r2617

svn:r2616

svn:r2610

svn:r2609

svn:r2605

svn:r2602

plus a whitespace patch on config.c from vicman


svn:r2482

We don't think this is exploitable, but best to fix it anyway.


svn:r2437

svn:r2285

we were (are?) printing garbage in the rephist stats


svn:r2284

svn:r2255

svn:r2254

svn:r2207

svn:r2202

svn:r2192

svn:r2190

Refactor ISO-style (yyyy-mm-dd hh:mm:ss) time parsing into util.c; rename format/parse_rfc1123_time; make rephist remember used bandwidth; published used bandwidth in descriptors in 15-minute chunks.  Breaks unittests.


svn:r2182

svn:r2168

svn:r2127

but delay 30 seconds until exiting.
if we get a second sigint, exit immediately.


svn:r2070

svn:r2069

svn:r2065

svn:r2050

Finish most pre2 items: make running-routers list work right; rename secret key files; make even more lookup-by-nickname use lookup-by-id; default nicknames to hostname.


svn:r2043

svn:r2041

letting clients evaluate whether they're suitable servers


svn:r2037