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* Rename aci to circ_id throughout.•••svn:r784 Nick Mathewson2003-11-11
* change WARNING to WARN•••and fix a few typos svn:r571 Roger Dingledine2003-10-10
* Update LICENSE and copyright dates.•••svn:r560 Nick Mathewson2003-10-08
* refactor around connection_edge_send_command()•••svn:r539 Roger Dingledine2003-10-04
* wrap strdup; prefer time() to gettimeofday()•••svn:r538 Roger Dingledine2003-10-04
* Add new cell fullness and bandwidth stats.•••svn:r533 Nick Mathewson2003-10-02
* bugfixes and features: closer to making dirserv work•••fix a variety of seg faults don't try to list OPs in running-routers write cached-directory to disk when rebuilding the dir on boot, dirservers load approved-routers file on boot, dirservers load cached directory file svn:r508 Roger Dingledine2003-09-29
* clean up receiver buckets; prepare for payloads in relay_end; note a few bugs•••svn:r502 Roger Dingledine2003-09-27
* first pass: obey log convention•••ERR is if something fatal just happened WARNING is something bad happened, but we're still running. The bad thing is either a bug in the code, an attack or buggy protocol/implementation of the remote peer, etc. The operator should examine the bad thing and try to correct it. (No error or warning messages should be expected. I expect most people to run on -l warning eventually.) NOTICE is never ever used. INFO means something happened (maybe bad, maybe ok), but there's nothing you need to (or can) do about it. DEBUG is for everything louder than INFO. svn:r486 Roger Dingledine2003-09-26
* clean up exported api's•••svn:r461 Roger Dingledine2003-09-16
* implemented cpuworkers•••please poke at it and report bugs still needs polishing, and only handles onions now (should handle OR handshakes too) svn:r402 Roger Dingledine2003-08-20
* Change many files to new log_fn format•••svn:r333 Nick Mathewson2003-06-17
* relay queues are obsolete (woo!)•••they used to be used for * queueing relay cells at the edge of the network, when windows are empty * queueing relay cells that arrive after an onion but before the onion has been processed. both of these uses are gone. so out they go. svn:r315 Roger Dingledine2003-06-13
* send truncates AP-ward in a circuit, not destroys•••svn:r313 Roger Dingledine2003-06-13
* implement truncate and truncated (untested)•••clean up circuit_deliver_relay_cell convention svn:r312 Roger Dingledine2003-06-12
* remove dead code•••circuits no longer queue more cells when the windows are empty -- they simply don't package it from the buffer if they're not going to want it. we can restore this code later if we need to resume queueing. svn:r294 Roger Dingledine2003-05-20
* add circuit-level sendme relay cells•••remove sendme cells replace malloc with tor_malloc patch (but not track down) bug in onion pending list streamline connection_ap handshake svn:r293 Roger Dingledine2003-05-20
* sign directories with the signing key•••svn:r274 Roger Dingledine2003-05-07
* put some symbolic constants to the onion skin lengths•••svn:r265 Roger Dingledine2003-05-06
* incremental path building in; uses ephemeral DH; onions are gone•••still need to change circuit-level sendmes svn:r264 Roger Dingledine2003-05-05
* streams are now 8 bytes, and are recognized by intermediate hops•••the OP only crypts the appropriate number of times depending on which layer (hop on the path) it's for/from. svn:r262 Roger Dingledine2003-05-02
* terminology shift: data->relay, topic->relay, topic->stream•••svn:r258 Roger Dingledine2003-05-01
* bugfix: a circ can't be youngest if it's still connecting to the first hop•••svn:r255 Roger Dingledine2003-04-20
* bugfix: refactor to always use circuit_remove•••this way we can always check if a new circ needs to be launched svn:r254 Roger Dingledine2003-04-20
* further cleanup, test.c still has some bugs•••svn:r241 Roger Dingledine2003-04-16
* Factor out timeval-related functions.•••svn:r237 Nick Mathewson2003-04-16
* Add magic to end of C files to make emacs happy; split test invocation into s...•••svn:r224 Nick Mathewson2003-04-07
* be less noisy at -l info, now that flow control bug is solved•••svn:r172 Roger Dingledine2003-03-10
* Bugfixes and enhancements in sendmes and dns farm•••svn:r161 Roger Dingledine2003-02-18
* major overhaul: dns slave subsystem, topics•••on startup, it forks off a master dns handler, which forks off dns slaves (like the apache model). slaves as spawned as load increases, and then reused. excess slaves are not ever killed, currently. implemented topics. each topic has a receive window in each direction at each edge of the circuit, and sends sendme's at the data level, as per before. each circuit also has receive windows in each direction at each hop; an edge sends a circuit-level sendme as soon as enough data cells have arrived (regardless of whether the data cells were flushed to the exit conns). removed the 'connected' cell type, since it's now a topic command within data cells. at the edge of the circuit, there can be multiple connections associated with a single circuit. you find them via the linked list conn->next_topic. currently each new ap connection starts its own circuit, so we ought to see comparable performance to what we had before. but that's only because i haven't written the code to reattach to old circuits. please try to break it as-is, and then i'll make it reuse the same circuit and we'll try to break that. svn:r152 Roger Dingledine2003-01-26
* bugfix: couldn't send two creates, two datas, and the destroy all at once•••(amazing the odd behavior you get to test when you have a flaky modem connection) svn:r148 Roger Dingledine2002-12-23
* create cells are now queued and processed only when idle•••we also queue data cells destined for a circuit that is pending, and process them once the circuit opens destroys reach into the queue and remove the pending onion, along with its collected data cells svn:r142 Roger Dingledine2002-11-27
* per-second cell statistics to help with profiling•••svn:r140 Roger Dingledine2002-11-24
* added OnionsPerSecond to prevent create flooding•••first cut, probably needs more playing with svn:r137 Roger Dingledine2002-11-23
* cell.c is now obsolete•••svn:r133 Roger Dingledine2002-10-03
* added 'connected' cell type•••see http://archives.seul.org/or/dev/Sep-2002/msg00018.html svn:r103 Roger Dingledine2002-09-17
* port is now kept in host order except in sin_port•••svn:r82 Roger Dingledine2002-08-24
* Folded cell.? into src/or•••svn:r64 Roger Dingledine2002-07-19
* Implemented router twins•••I modified new_route so we don't pick twins back-to-back in the path. I also had to patch my previous uses of connection_twin_get_by_addr_port() because they assumed that "addr" and "port" would be the same for a twin as for the original router. svn:r56 Roger Dingledine2002-07-18
* Implemented congestion control•••Servers are allowed to send 100 cells initially, and can't send more until they receive a 'sendme' cell from that direction, indicating that they can send 10 more cells. As it currently stands, the exit node quickly runs out of window, and sends bursts of 10 whenever a sendme cell gets to him. This is much much much faster (and more flexible) than the old "give each circuit 1 kB/s and hope nothing overflows" approach. Also divided out the connection_watch_events into stop_reading, start_writing, etc. That way we can control them separately. svn:r54 Roger Dingledine2002-07-18
* Implemented link padding and receiver token buckets•••Each socket reads at most 'bandwidth' bytes per second sustained, but can handle bursts of up to 10*bandwidth bytes. Cells are now sent out at evenly-spaced intervals, with padding sent out otherwise. Set Linkpadding=0 in the rc file to send cells as soon as they're available (and to never send padding cells). Added license/copyrights statements at the top of most files. router->min and router->max have been merged into a single 'bandwidth' value. We should make the routerinfo_t reflect this (want to do that, Mat?) As the bandwidth increases, and we want to stop sleeping more and more frequently to send a single cell, cpu usage goes up. At 128kB/s we're pretty much calling poll with a timeout of 1ms or even 0ms. The current code takes a timeout of 0-9ms and makes it 10ms. prepare_for_poll() handles everything that should have happened in the past, so as long as our buffers don't get too full in that 10ms, we're ok. Speaking of too full, if you run three servers at 100kB/s with -l debug, it spends too much time printing debugging messages to be able to keep up with the cells. The outbuf ultimately fills up and it kills that connection. If you run with -l err, it works fine up through 500kB/s and probably beyond. Down the road we'll want to teach it to recognize when an outbuf is getting full, and back off. svn:r50 Roger Dingledine2002-07-16
* it wouldn't return when the next router isn't up, leading to later seg fault•••i'm going to take a shower, and then solve the deadlocking problem mat found svn:r38 Roger Dingledine2002-07-10
* put in the support for 'router twins'•••basically, a twin is a router which is different except it shares the same keypair. so in cases where we want to find a "next router" and all we really care is that it can decrypt the next onion layer, then a twin is just as good. we still need to decide how to mark twins in the routerinfo_t and in the routers config file. svn:r30 Roger Dingledine2002-07-08
* Integrated onion proxy into or/•••The 'or' process can now be told (by the global_role variable) what roles this server should play -- connect to all ORs, listen for ORs, listen for OPs, listen for APs, or any combination. * everything in /src/op/ is now obsolete. * connection_ap.c now handles all interactions with application proxies * "port" is now or_port, op_port, ap_port. But routers are still always referenced (say, in conn_get_by_addr_port()) by addr / or_port. We should make routers.c actually read these new ports (currently I've kludged it so op_port = or_port+10, ap_port=or_port+20) * circuits currently know if they're at the beginning of the path because circ->cpath is set. They use this instead for crypts (both ways), if it's set. * I still obey the "send a 0 back to the AP when you're ready" protocol, but I think we should phase it out. I can simply not read from the AP socket until I'm ready. I need to do a lot of cleanup work here, but the code appears to work, so now's a good time for a checkin. svn:r22 Roger Dingledine2002-07-02
* made 'app' connection be 'exit' connection•••general cleanup, particularly in buffers.c svn:r17 Roger Dingledine2002-06-30
* Initial revision•••svn:r2 Roger Dingledine2002-06-26