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
Fix connection_get_by_type_state_rendquery(): This has been bogus for most of 0.1.2.x. Thanks to Karsten Loesing for finding the bug; fixes bug 399.
svn:r9651
Fix a bug in 9572: after we decref a defunct v1 directory, drop the main reference to it. Should fix bug 396. Many thanks to seeess for tracking this one down.
svn:r9648
nickname array, and only treating a server as reachable if
the array magically has the right nickname in it. this was
causing the authorities to label only themselves as running,
and clients were "mysteriously" failing.
svn:r9628
Make remap stream events have a souce; make them generated every time we get a successful connected or resolved cell. Also change reported stream target address to IP consistently when we get the IP from an exit node.
svn:r9624
Fix two XXXX012 issues in routerlist.c: a possible performance issue hasnt shown up on any profiles, so unflag it. Stop warning when we get a router descriptor that we asked for but no longer want: just drop it (if we are not a cache) or cache if (if we are).
svn:r9616
As a trivial optimization, remove a redundant call to router_have_minimum_dir_info. This might shave 2% on some systems by according to some profilers.
svn:r9610
Move all struct-offset-manipulation macros into util.h, and use them consistently. Because there are days when "SUBTYPE_P(handle, subtype, _base)" is just easier to read and write than "(basetp*)(((handle) - STRUCT_OFFSET(subtype, _base))".
svn:r9592
Fix a longstanding dnsworker-related bug: when we decide to kill a DNS worker for having been in use too long, and we independently decide to close one of the exit connections waiting for that DNS worker (perhaps because we got an END relay cell), it was possible for us to try to double-free the connection. We were smart enough to detect this and assert, but not smart enough to fix this bug before now. This should resolve bug 390. Backport candidate.
svn:r9581
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
Do not try to load advapi32.dll except when the user asks us to do something with NT services. When we _do_ try, always treat failure to load service functions as an exit-worthy error. Needs testing. (Fixes bug 389)
svn:r9571
Handle errors on opening cached-routers* more uniformly and sanely: log not-found errors at level INFO, and all other errors at level WARN. Needs testing on win32.
svn:r9569
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 several bugs in computing recommended versions. 1) refactor is-this-version-good handling and which-vesions-are-good handling to be in the same place. 2) a version is recommended if more than half of the versioning authorities like it, not >= half. 3) "NEW_IN_SERIES" should mean, "I don't know of an 0.1.1.x this recent, and there are some 0.1.2.x versions out", not "I don't know of an 0.1.1.x this recent, but I know some older ones." This should resolve bug 383.
svn:r9523
Set hibernate_end_time whenever we start hibernating. This fixes a problem where we would start hibernating upon startup (since it isn't time to wake up yet) but we would wind up setting the "stop hibernating" time not to the wakeup time, but to the end of the interval. Also, split hibernate_end_time from shutdown_time. Possible fix for bug 362.
svn:r9512
Report stream end events where a resolve succeeded or where we got a socks protocol error correctly, rather than calling both of them "INTERNAL". Turn ALREADY_SOCKS_REPLIED into a flag rather than a reason. This will help debug 367 part 2 a little.
svn:r9511
(Hopefully) final changes for 0.1.2.7-alpha: disable checking for whether the user account in question exists on --service install, since that seems to make windows go boom. We can figure out why later. Also, let the admin specify a password for the target user.
svn:r9506
Remove a now-bogus assert() from nt_service_command_line(), and change option handling. (Now that we no longer force a -f, it is possible to have no command-line options for Tor-as-service.)
svn:r9503
The --service install code can no longer default to adding an -f option for the appdata directory of the current user, since the target user probably will not be able to read it. Instead, warn the user if no explicit torrc filename is given.
svn:r9502
More win32 account flumdummery: when LocalService exists, you can't detect it via LookupAccountName. The only good test is to see whether we're on win2k or earlier.
Apparently, somebody wouldn't know where to draw the line between implementation and interface if you gave them tracing paper and a copy of Stevens.
svn:r9499
Fix bug 254, sort of: make the default NT service user NetworkService rather than NULL (system). Also, add a --user argument to --service install so that admins can override this default: this latter point should take care of most of my objections to NetworkService. I have no idea whether this even compiles.
svn:r9486
Add a REMAP state to stream events so that controllers can learn exactly when the target address for a stream has changed. May help Vidalia resolve confusions related to bug 375.
svn:r9484
Add documentation to src/common/*.h; improve documentation for SMARTLIST_FOREACH; remove never-used options and corresponding tests from tor_strpartition.
svn:r9483
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
Note a few questionable bits pointed out by RATS. (And no, RATS, I'm not about to stop having fixed-sized local buffers for you. I know how to use them, thankyouverymuch.)
svn:r9474
Fix a bug in our assertions related to removing recently-completed DNS lookup attempts on exit. It is okay to find a cache entry with the same name as a DONE entry, so long it is not the same struct as the DONE entry.
svn:r9467
Write the entry guards section of path-spec; note a possible bug in cirbuitbuild.c; add a const; defer work on torrc.complete to be part of a bigger config documentation reorg.
svn:r9465
Add a couple of fixes I turned up while writing regression tests for libevent: Allow DNS servers on ports other than 53, and handle TTLs correctly on reverse hostname lookups.
svn:r9458
directory tunnel without knowing a descriptor first. Still not
ready yet. As part of the change, now assume we can use a
create_fast cell if we don't know anything about a router.
svn:r9440
This one is a little tricky. Our BEGIN_DIR implementation has a
problem: the dirserv conns will decide they can flush all their data
immediately, since the edge_conns will read greedily.
For our 0.1.2 workaround, we track which or_conn a bridged dirserv
conn is attached to, and stop writing when its outbuf is too full, and
start writing again when the or_conn's outbuf empties out a little.
This requires a bit of pointer management. Let's hope it works.
svn:r9432
When logging TLS certificate and identity-related errors, scrub IP addresses for incoming connections, and distinguish between incoming and outgoing connections in log messages. Backport candidate.
svn:r9391
Remove redundant check for whether _connection_write_to_buf_impl is called with a zlib and a non-directory connection: TO_DIR_CONN will already assert if it gets a non-dir connection.
svn:r9390
Fix an XXXX012 in routerlist.c: when we do not have enough networkstatuses to launch router requests, do not launch router requests. Backport candidate.
svn:r9388
Implement SOCKS_BAD_HOSTNAME status event. Defer remaining status events. Clean up control-spec.txt a little, and fill in recommendations for events.
svn:r9374
aggressively. my vidalia bandwidth graph, when rate limiting
to 32kB/s, has the "write" line constantly at 32kB. I can't
imagine what's going on with the relay latency but it can't
be good.
svn:r9366
Apparently, the OpenBSD linker thinks it knows C better than I do, and gets to call me names for having strcat and strcpy and sprintf in my code--whether I use them safely or not. All right, OpenBSD. You win... this round.
svn:r9360
Tidy up ORCONN reason patch from Mike Perry. Changes: make some of the handling of TLS error codes less error prone. Enforce house style wrt spaces. Make it compile with --enable-gcc-warnings. Only set or_conn->tls_error in the case of an actual error. Add a changelog entry.
svn:r9355
handshake to finish. Previously we would let them sit around for
days, if the connecting application didn't close them either.
Also take this opportunity to refactor a duplicate bit of circuituse.c.
And change the semantics of SocksTimeout slightly, but I think it'll
be ok.
svn:r9350
Check addresses for rfc953-saneness at exit too, and give a PROTOCOL_WARN when they fail. Also provide a mechanism to override this, so blossom can have its @@##$$^.whatever.exit hostnames if it wants.
svn:r9336
Clear untrusted networkstatuses after 10 days too. (This is not a terribly awful bug, since we would only ever retain 16 of them, but it still might be nice to backport.) Resolves part A of bug 372.
svn:r9324
Implement a control status event for bad libevent version/method combos. Warn that libevent <1.1 with select() is needlessly slow. Reply to comment.
svn:r9284
Fix computation of total_exit_bandwidth; this will cause exits not to get recommended as guards if the total exit bandwidth if they constitute less than a third of total available bandwidth. There may be problems here with flapping; lets see if they occur in practice.
svn:r9281
Re-enable warning when we resolve an already resolved address. We only warn here now if the address is not a testing address. Also, refactor out a function to check whether an address is used for testing.
svn:r9280
Add (and specify) a BadDirectory flag to networkstatuses, so authorities can tell clients that some caches are broken. Also, implement an as-yet-unused function to estimate how many bytes will be sent on a directory connection.
svn:r9255
Close any directory connection on which we have received 10MB or more of data. This prevents a malicious directory cache from running us out of memory by spooling an infinite amount of data. (Not a terribly good attack, but hey, every one helps.)
svn:r9210
Count TLS bytes accurately: previously, we counted only the number of bytes read or transmitted via tls, not the number of extra bytes used to do so. This has been a lonstanding wart. The fix "Works for me".
svn:r9207
If we only have a single nameserver, raise the threshold to decide that the nameserver is dead. (Another fumbling attempt to do something about bug 326.)
svn:r9203
Fix bug 364: check for whether popular hostnames (curently google, yahoo, mit, and slashdot) are getting wildcarded. If they are, we are probably behind a DNS server that is useless: change our exit policy to reject *:*.
svn:r9199
Better handling of internal addresses wrt X-Your-Address-Is (never believe them; never provide them.) Also, report something useful for X-Your-Address-Is with one-hop tunneled connections.
svn:r9191
Patch from Edmanm, slightly modified. Original change list:
- Support running the Tor service with a torrc not in the
same directory as tor.exe (Bug #356) and default to using the torrc
located in the %appdata%\Tor\ of the user who installed the service
- Removed the supposedly misleading error message mentioned in Bug #294
- Fixed some CloseHandle()s that should've been CloseServiceHandle()s
- Fixed some nt_service_foo() return values to be consistent
- Resolved some nt_service_foo() DOCDOCs
- Fixed one trivial typo that I happened to randomly notice
Changes:
- Make more comments into "imperative" house style.
- Remove special handling for "-f"; only use --options.
- Quote all options.
- Clean up whitespace
svn:r9185
Track when we get 503s from directory servers. Do not use directory servers that have given us a 503 until either an hour has passed, or we are are out of non-busy servers.
svn:r9172
Add an orport option to dirserver lines so that clients can tell where to connect to open an encrypted tunnel to a dirserver even before they have its descriptor.
svn:r9171
Add a maintainer script and a new make target "make check-docs" to get a quick dump of which options are undocumented where, and which documentation refers to nonexistent options.
svn:r9160
schedule. Now the first connect attempt will wait a full 10
seconds before switching to a new circuit. Perhaps this will help
a lot. Based on observations from Mike Perry.
svn:r9159
Resolve bug 363: do not fall back to 127.0.0.1 when no nameservers are configured. Instead, have the admin fix resolv.conf or configure a nameserver.
svn:r9157
Add internal documentation for a bunch of configuration options. We should do something to keep this list, the canonical list, the tor.1 list, and the torrc.complete list in sync.
svn:r9133
Add a LastRotatedOnionKey variable to the state file, so we can rotate onion keys a week after they change even if we never stay up for a whole week at a time. Should fix bug 368.
svn:r9120
Try to reconcile (except for whitespace) eventdns with version in libevent, so it is easier for me to send merges. These changes should be cosmetic. (Ha!)
svn:r9117
Resolve bug 369: Check for integer underflow when printing "bytes left" accounting numbers. Also fix a copyright date that I noticed while reading the bug. Also make a buffer big enough that strings will not get truncated. All are backport candidates.
svn:r9115
buffer, make sure our tls_get_forced_write_size doesn't
make it write whatever's after the buffer.
this hasn't triggered yet, but it would be rare, so let's
leave it in.
svn:r9107
New socks command CONNECT_DIR. New config option TunnelDirConns that
builds a circ ending at the directory server and delivers a BEGIN_DIR
cell if it's running 0.1.2.2-alpha or later. We still need to make
one-hop circs when appropriate, while making other conns avoid them.
svn:r9098
Document all structures and (non-exported) functions. External documentation will probably wind up being a manpage, hopefully written by somebody else.
svn:r9087
More evdns: tab fixes. Dont make users worry about flags. Set truncated flag correctly when generating responses, rather than just bailing out.
svn:r9084
Oops; apparently DNS replies are supposed to include the questions. Revise "add_ptr_reply" to accept an inaddr_arpa name instead of just the sockaddr_in. Also, add a "-servertest" function to the test code to see whether the DNS server logic is working.
svn:r9082
Fix a longstanding bug in eventdns related to timeouts: The timeout count was never actually reset to 0. Argh. Now we reset it to zero after we get a successful request, or after we notice that a nameserver is back up, or after we decide the nameserver is down because of timeouts. This may fix bug 326.
svn:r9054
Round stored/transmitted values for bandwidth usage. This might make some attacks work less well. This might well be voodoo, but it gives me a warm fuzzy feeling.
svn:r9048
Revise logic used to flush state to disk. Now, we try to batch non-urgent changes so that we do not do too many writes, and we save very-non-urgent changes every once in a rare while, and we never save more than once per second.
svn:r9047
Make bandwidth accounting information get stored to the state file as well as bw_accounting. Read from the state file if it is more recent than bw_accounting, or if bw_accounting is not there.
svn:r9044
Change logging format of state file to only include non-default values. Adjust clients to never store bandwidth history in the state file. (Possible backport candidate.)
svn:r9043
Fix bug 338: log verbose nicknames, not just keys, for intro points. Also, suppress intro point name logging when SafeLogging is 1. (The security part is a possible backport candidate.)
svn:r9041
intended. this way we don't call resolve-my-address, which
yells and screams if we're using an internal address (mere
clients should not have to care).
svn:r8998
Fix router_new_address_suggestion() so it only changes last_guessed_ip() when it actually calls resolve_my_address(). (bug found by dev-girl)
svn:r8996
11:23 < armadev> typo
11:23 < nickm> ?
11:23 < armadev> did you get the coffee yet? :)
11:23 < nickm> no
11:23 < armadev> i'm at an advantage..i haven't slept yet
svn:r8972
Tweaks to test-connection patch: use ".noconnect" instead of ".test" (since there are lots of ways to test things). Use a regular sequence of STREAM events (NEW followed by CLOSED) instead of a new event type. Make the function that checks the address be static and use const and strcasecmpend properly.
svn:r8959
Check in an implementation of "test" connections from Scott Squires:
these connections immediately close upon reaching Tor. They're useful
for apps that want to check whether they're talking to the same Tor as
a given controller. (I'll be tweaking this a bit before I push.)
svn:r8958
Try to compile with fewer warnings on irix64's MIPSpro compiler /
environment, which apparently believes that:
- off_t can be bigger than size_t.
- only mean kids assign things they do not subsequently inspect.
I don't try to fix the "error" that makes it say:
cc-3970 cc: WARNING File = main.c, Line = 1277
conversion from pointer to same-sized integral type (potential portability
problem)
uintptr_t sig = (uintptr_t)arg;
Because really, what can you do about a compiler that claims to be c99
but doesn't understand that void* x = NULL; uintptr_t y = (uintptr_t) x;
is safe?
svn:r8948
Add support for (Free?)BSD's natd, which was an old way to let you
have your firewall automatically redirect traffic. (Original patch
from Zajcev Evgeny, updated for 0.1.2.x by tup.)
svn:r8946
Add some temporary code to count how many *distinct* router digests we verify. (I have a sneaking suspicion that the numbers look way way high.)
svn:r8890
fix unittests; add more tests for smartlist stuff; make tests cache generated RSA keys (to speed up unittest run time by 30% and encourage people to run them more).
svn:r8796
Let directory authorities set the BadExit flag if they like. Also, refactor directory authority code so we can believe multiple things about a single router, and do fewer linear searches.
svn:r8794
fix a rare memory leak if something goes wrong while rebuilding it,
and clean up some code. nick, please confirm.
reported by "fookoowa" in flyspray 346 (yay!)
svn:r8789
Have connection_about_to_close use an end_reason field in edge_connection_t to tell what reason to tell the controller for closing the stream. Set end_reason in connection_edge_end, connection_mark_unattached_ap, and everwhere we set edge_has_sent_end. Add a changelog entry.
svn:r8779
Start implementing reason extension for stream events to match the one one used by circuit events. (Not a complete implementation yet; actual reasons are not passed to control.c)
svn:r8777
Change HT_INIT from a special-case to a macro-calling-a-function like the rest of ht.h. This might prevent errors if somebody did, I dunno, "HT_INIT(tp, hashtable++)". Based on a patch from Watson Ladd.
svn:r8776
Weasel correctly notes that we should not discard the return value from connection_exit_begin_con. Right now, the return value is always discardable, so this does not actually cause a bug, but it might later. So fix it.
svn:r8774
Fix longstanding bug in connection_exit_begin_conn(): Since connection_edge_end() exits when the connection is unattached, we were never sending RELAY_END cells back for failed RELAY_BEGIN attempts. Fix this. This might make clients that were otherwise timing out either fail faster or retry faster, which is good news for us.
svn:r8770
Add pragma:no-cache and expires headers so that directory lookups can work better in the presence of caching HTTP proxies. (I would have used Cache-Control, but that is an HTTP/1.1 thing.) All timeouts are currently wild-assed guesses.
svn:r8765
Split smartlist tests into their own function, and add a couple more. Re-enable strmap iteration tests. Remove tests for code that doesnt exist any more (parse_nickname_list, identity ciphers).
svn:r8763
Add unit tests for tor_mmap_file(); make tor_mmap_t.size always be the size of the file (not the size of the mapping); add an extra argument to read_file_to_str() so it can return the size of the result string.
svn:r8762
Never discard a descriptor for being too old until either it is recommended by no authorities, or until we download a better (more recent and recommended) one for the same router. This will eventually make it possible for servers to publish less often.
svn:r8761
Fix an XXX in handling destroy cells: when we get a destroy cell with reason FOO, do not tell the controller REASON=FOO. Instead, say REASON=DESTROYED REMOTE_REASON=FOO. Suggested by a conversation with Mike Perry.
svn:r8760
Change to BadExit logic: Let authorities set an "I list bad exits" flag. Consider an exit bad if it is listed as bad by more than half of *those* authorities. This gives us a better migration path.
svn:r8756
Apply patch from Mike Perry: add more reasons for circuit destroys. (Slightly tweaked to avoid allocating a number for an "internal" reason.)
svn:r8739
Add client support for a 'BadExit' flag, so authorities can say "Server X is a poor choise for your nytimes.com connections, as it seems to direct them to HoorayForMao.com or (more likely) WouldYouLikeToBuyTheseFineEncyclopedias.com"
svn:r8690
