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path: root/src/or/connection_ap.c
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* bugfix: don't segfault if there's no valid circuit openRoger Dingledine2003-04-19
| | | | svn:r253
* Choose correct abstraction for topic_foo. Abstract random-integer codeNick Mathewson2003-04-17
| | | | svn:r249
* Use cell.topic* fields in ap_handshake_send_beginNick Mathewson2003-04-17
| | | | svn:r248
* divorce circuit building from user connectionsRoger Dingledine2003-04-16
| | | | | | | | now we rebuild the circuit periodically (but only if it's been used), and we can further abstract it to do incremental circuit building, etc. svn:r233
* refactored some duplicate code into connection_edge.cRoger Dingledine2003-04-11
| | | | svn:r230
* Add magic to end of C files to make emacs happy; split test invocation into ↵Nick Mathewson2003-04-07
| | | | | | separate file. svn:r224
* begin cells are now address:port, not address,portRoger Dingledine2003-04-05
| | | | | | | (breaks backward compatibility) svn:r222
* Add other side of half-open-connection logic (still disabledNick Mathewson2003-03-19
| | | | svn:r206
* Be clear about whether we are using half-open connectionsNick Mathewson2003-03-19
| | | | svn:r204
* Finish zlib and half-open; switch to 3des (ede/ofb)Nick Mathewson2003-03-19
| | | | svn:r198
* greatly simplify this notion of 'roles':Roger Dingledine2003-03-18
| | | | | | | | if your ORPort is non-zero then you must connect to all nodes if your DirPort is non-zero then you must act like a directory server svn:r192
* Add code for end-to-end zlib compression. Still needs flow-controlNick Mathewson2003-03-17
| | | | svn:r187
* Make ACI anti-collision logic work; make sure that cells are filled with 0s.Nick Mathewson2003-03-11
| | | | svn:r176
* Bugfixes and enhancements in sendmes and dns farmRoger Dingledine2003-02-18
| | | | svn:r161
* fix endian issues for topics -- they might work on bsd nowRoger Dingledine2003-02-06
| | | | | | | | | (they wouldn't have before) alternate code which bypasses the dns farm, so we can compare speed svn:r154
* make reusing circuits work (and be the default)Roger Dingledine2003-02-06
| | | | | | | performance is better, but not by much. not sure why yet. svn:r153
* major overhaul: dns slave subsystem, topicsRoger Dingledine2003-01-26
| | | | | | | | | | | | | | | | | | | | | | | | | | 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
* expire unfinished handshakes tooRoger Dingledine2002-10-13
| | | | | | | don't list non-open ORs in the directory svn:r134
* cleanup and a variety of bugfixesRoger Dingledine2002-10-02
| | | | svn:r132
* cleanupRoger Dingledine2002-09-28
| | | | | | | | | | prkey is only fetched when it's needed tor nodes who aren't dirservers now fetch directories and autoconnect to new nodes listed in the directory default role is a non-dirserver node svn:r120
* mozilla actually cares about the reply versionRoger Dingledine2002-09-27
| | | | | | | | | tor can now interface directly with mozilla, as a socks 4 host. but note that mozilla does the dns resolution itself, so you're leaking anonymity. svn:r119
* support socks4 tooRoger Dingledine2002-09-27
| | | | svn:r118
* another bugfix on the proxy sideRoger Dingledine2002-09-26
| | | | | | | should be more reliable now (?) svn:r111
* laying the groundwork for dynamic router listsRoger Dingledine2002-09-24
| | | | | | | | | | | | | | | | revamped the router reading section reference counting for crypto pk env's (so we can dup them) we now read and write pem pk keys from string rather than from FILE*, in anticipation of fetching directories over a socket (so now on startup we slurp in the whole file, then parse it as a string) fixed a bug in the proxy side, where you could get some circuits wedged if they showed up while the connection was being made svn:r110
* more robust when only some of the socks info has arrivedRoger Dingledine2002-09-23
| | | | svn:r108
* onion proxy now speaks socks4aRoger Dingledine2002-09-22
| | | | | | | | | | | httpap is obsolete; we support privoxy directly now! smtpap is obsolete; need to find a good socks4a-enabled smtp proxy/client I dub thee 0.0.1. svn:r107
* synchronize to the version i've been giving people to testRoger Dingledine2002-09-19
| | | | svn:r104
* added 'connected' cell typeRoger Dingledine2002-09-17
| | | | | | | see http://archives.seul.org/or/dev/Sep-2002/msg00018.html svn:r103
* minor race conditionRoger Dingledine2002-09-09
| | | | | | | (it seemed to work anyway, but...) svn:r100
* port is now kept in host order except in sin_portRoger Dingledine2002-08-24
| | | | svn:r82
* Changed crypto calls to go through common/crypto.[hc] instead of calling ↵Matej Pjafjar2002-08-22
| | | | | | OpenSSL directly. svn:r76
* Code cleaned up to be less noisyRoger Dingledine2002-07-22
| | | | svn:r71
* Implemented router twinsRoger Dingledine2002-07-18
| | | | | | | | | | | 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
* Implemented congestion controlRoger Dingledine2002-07-18
| | | | | | | | | | | | | | | 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
* Implemented link padding and receiver token bucketsRoger Dingledine2002-07-16
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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
* put in the support for 'router twins'Roger Dingledine2002-07-08
| | | | | | | | | | | | | 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
* general cleanupRoger Dingledine2002-07-05
| | | | svn:r29
* Integrated onion proxy into or/Roger Dingledine2002-07-02
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