Patch from Christian Wilms: remove (HiddenService|Rend)(Exclude)?Nodes options. They never worked properly, and nobody seems to be using them. Resolves bug 754.
svn:r16144
Never allow a circuit to be created with the same circid as a circuit that has been marked for close. May be a fix for bug 779. Needs testing. Backport candidate.
svn:r16136
Add new ExcludeExitNodes option. Also add a new routerset type to handle Exclude[Exit]Nodes. It is optimized for O(1) membership tests, so as to make choosing a random router run in O(N_routers) time instead of in O(N_routers*N_Excluded_Routers).
svn:r16061
to just our our entry guards for the test circuits. Otherwise we
tend to have multiple test circuits going through a single entry
guard, which makes our bandwidth test less accurate. Fixes part
of bug 654; patch contributed by Josh Albrecht.
(Actually, modify Josh's patch to avoid doing that when you're
a bridge relay, since it would leak more than we want to leak.)
svn:r15850
as soon as you run out of working bridges, rather than waiting
for ten failures -- which will never happen if you have less than
ten bridges.
svn:r15368
If you have more than one bridge but don't know their keys,
you would only learn a request for the descriptor of the first one
on your list. (Tor considered launching requests for the others, but
found that it already had a connection on the way for $0000...0000
so it didn't open another.)
If you have more than one bridge but don't know their keys, and the
connection to one of the bridges failed, you would cancel all
pending bridge connections. (After all, they all have the same
digest.)
svn:r15366
Only dump all guard node status to the log when the guard node status actually changes. Downgrade the 4 most common remaining INFO log messages to DEBUG.
svn:r14069
Add a bunch more code documentation; change the interface of fetch_var_cell_from_buf() so it takes the current link protocol into account and can't get confused by weird command bytes on v1 connections.
svn:r13430
Initial attempts to track down bug 600, and refactor possibly offending code. 1) complain early if circuit state is set to OPEN when an onionskin is pending. 2) refactor onionskin field into one only used when n_conn is pending, and a separate onionskin field waiting for attention by a cpuworker. This might even fix the bug. More likely, it will make it fail with a more useful core.
svn:r13394
When we load a bridge descriptor from the cache,
and it was previously unreachable, mark it as retriable so we won't
just ignore it. Also, try fetching a new copy immediately.
svn:r12950
Refactor circuit_launch* functions to take a bitfield of flags rather than 4 separate nonconsecutive flags arguments. Also, note a possible but in circuit_find_to_cannibalize, which seems to be ignoring its purpose argument.
svn:r12948
unexpected (it used to be in our networkstatus when we started
fetching it, but it isn't in our current networkstatus), and we
aren't using bridges. Bugfix on 0.2.0.x.
svn:r12911
using bridges or we have StrictEntryNodes set), don't mark relays
down when they fail a directory request. Otherwise we're too quick
to mark all our entry points down.
svn:r12755
enough directory information. This was causing us to always pick
two new guards on startup (bugfix on 0.2.0.9-alpha), and it was
causing us to discard all our guards on startup if we hadn't been
running for a few weeks (bugfix on 0.1.2.x). Fixes bug 448.
svn:r12570
the bridge authority could help us (for example, we don't know
a digest, or there is no bridge authority), don't be so eager to
fall back to asking the bridge authority.
svn:r12512
Add a bunch of function documentation; clean up a little code; fix some XXXXs; tag the nonsensical EXTRAINFO_PURPOSE_GENERAL as nonsesnse; note another bit of "do not cache special routers" code to nuke.
svn:r11761
users configure that and specify a bridge with an identity
fingerprint, now they will lookup the bridge descriptor at the
default bridge authority via a one-hop tunnel, but once circuits
are established they will switch to a three-hop tunnel for later
connections to the bridge authority.
svn:r11550
Add a line to the state file for each guard to let us know which version added the guard. If the line is absent, assume the guard was added by whatever version of Tor last wrote the state file. Remove guards if the version that added them was using a bad guard selection algorithm. (Previously, we removed guards if the version that wrote the file was using a bad guard selection algorithm, even if the guards themselves were chosen by a good version.)
svn:r11298
When we are loading state info from disk, never believe any date in the future. Doing so can keep us from retrying guards, rotating onion keys, storing bandwidth info, etc. Fixes bug 434, and others. Backport candidate, once it has been tested.
svn:r11166
never choose any guards past it. This way we don't expand our
guard list unless we need to. [Bugfix in 0.1.2.x]
I'm not sure if this will solve all our problems, but it is at least
something.
svn:r10730
in the networkstatuses, so we'll mark it unusable when we
load it, and then when we get a new routerinfo for it, we'll
still think it's unusable. fix that.
svn:r10612
- Only listen to responses for "authority" fetches if we're configured
to use Bridges. Otherwise it's safe (and maybe smarter) to silently
discard them like we used to.
- React faster to download networkstatuses after the first bridge
descriptor arrives.
- Don't do dir fetches before we have any bridges, even when our
dirport is open.
svn:r10604
- demand options->Bridges and options->TunnelDirConns if
options->UseBridges is set.
- after directory fetches, accept descriptors that aren't referenced by
our networkstatuses, *if* they're for a configured bridge.
- delay directory fetching until we have at least one bridge descriptor.
- learn how to build a one-hop circuit when we have neither routerinfo
nor routerstatus for our destination.
- teach directory connections how to pick a bridge as the destination
directory when doing non-anonymous fetches.
- tolerate directory commands for which the dir_port is 0.
- remember descriptors when the requested_resource was "authority",
rather than just ignoring them.
- put bridges on our entry_guards list once we have a descriptor for them.
When UseBridges is set, only pick entry guards that are bridges. Else
vice versa.
svn:r10571
It is becoming increasingly clear to me that bridges should
be a special case of entry guards, not a whole separate pile
of nearly identical functions.
svn:r10141
Initial version of circuit-based cell queues. Instead of hammering or_conns with piles of cells, queue cells on their corresponding circuits, and append them to the or_conn as needed. This seems to work so far, but needs a bit more work. This will break the memory-use-limitation patch for begin_dir conns: the solution will be a fun but fiddly.
svn:r9904
Make all LD_BUG log messsages get prefixed with "Bug: ". Remove manually-generated "Bug: "s from log-messages. (Apparently, we remembered to add them about 40% of the time.)
svn:r9733
Fix a bug found by Udo van den Heuvel: avoid an assertion failure when a controller sets and clears EntryNodes before the next call to choose_random_entry(). Also make a function static.
svn:r9669
Node-picking fixes: Never warn when a down node is listed in a config option (bug 348); always warn when a node in a config option is unnamed. Also, when entrynodes is configured, then build the guard list as: (parts of EntryNodes that were guards before), (the rest of EntryNodes), (the rest of the old guards). This last point ensures that EntryNode users will get the EntryNodes they want with the minimum change to their guard list.
svn:r9574
Implement proposal 106: stop requiring clients to have certificates, and stop checking for nicknames in certificates. [See proposal 106 for rationale.] Also improve messages when checking TLS handshake, to re-resolve bug 382.
svn:r9568
Resolve some XXXX012 items:
- Remove PathlenCoinWeight: if we want it again, we can add it
back in.
- Ditto with RelayBandwidth*.
- Decide to leave in the "hey, you didn't set end_reason!" BUG log message,
but stop telling people to bug me personally.
- Postpone strengthening assert_connection_ok(): it's important, but
it's also a good way to introduce weird bugs.
- Move some expensive consistency checking from dns_free_all() into
assert_cache_ok().
svn:r9533
Fix an XXXX012, and make circuits_pending_or_conns a static variable. In addition to cleaning up the code, this may also resolve Bug 386 if Roger has the right intuition there.
svn:r9482
Removing the last DOCDOC comment hurt so much that I had to use Doxygen to identify undocumented macros and comments, and add 150 more DOCDOCs to point out where they were. Oops. Hey, kids! Fixing some of these could be your first Tor patch!
svn:r9477
