aboutsummaryrefslogtreecommitdiff
path: root/src/or/buffers.c
Commit message (Expand)AuthorAge
* clean up connection_assert_ok compiler warnings•••svn:r498 Roger Dingledine2003-09-27
* connection_new() can't ever fail•••svn:r497 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
* various bugfixes and updates•••redo all the config files for the new format (we'll redo them again soon) fix (another! yuck) segfault in log_fn when input is too large tor_tls_context_new() returns -1 for error, not NULL fix segfault in check_conn_marked() on conn's that die during tls handshake make ORs also initialize conn from router when we're the receiving node make non-dirserver ORs upload descriptor to every dirserver on startup add our local address to the descriptor add Content-Length field to POST command revert the Content-Length search in fetch_from_buf_http() to previous code fix segfault in memmove in fetch_from_buf_http() raise maximum allowed headers/body size in directory.c svn:r484 Roger Dingledine2003-09-25
* Refactor buffers; implement descriptors.•••'buf_t' is now an opaque type defined in buffers.c . Router descriptors now include all keys; routers generate keys as needed on startup (in a newly defined "data directory"), and generate their own descriptors. Descriptors are now self-signed. Implementation is not complete: descriptors are never published; and upon receiving a descriptor, the directory doesn't do anything with it. At least "routers.or" and orkeygen are now obsolete, BTW. svn:r483 Nick Mathewson2003-09-25
* cleanups, bugfixes, more verbose logs•••Fixed up the assert_*_ok funcs some (more work remains) Changed config so it reads either /etc/torrc or the -f arg, never both Finally tracked down a nasty bug with our use of tls: It turns out that if you ask SSL_read() for no more than n bytes, it will read the entire record from the network (and maybe part of the next record, I'm not sure), give you n bytes of it, and keep the remaining bytes internally. This is fine, except our poll-for-read looks at the network, and there are no bytes pending on the network, so we never know to ask SSL_read() for more bytes. Currently I've hacked it so if we ask for n bytes and it returns n bytes, then it reads again right then. This will interact poorly with our rate limiting; we need a cleaner solution. svn:r481 Roger Dingledine2003-09-24
* get network/host order working right again for socks4•••svn:r476 Roger Dingledine2003-09-21
* bugfixes and note missing features•••deal with content-length headers better when reading http don't assume struct socks4_info is a packed struct fail the socks handshake if destip is zero flesh out conn_state_to_string() for dir conn fix typo (bug) in connection_handle_read() directory get is now called fetch, post is now upload reopen logs on sighup svn:r475 Roger Dingledine2003-09-21
* leave the socks handshake on the inbuf until it's complete•••this paves the way for supporting socks5 and other handshakes it also removes those pesky AP-only variables from connection_t also hacked a fix for a bug where some streams weren't ending properly -- maybe because marked connections weren't flushing properly? svn:r472 Roger Dingledine2003-09-18
* add in directory 'post' support•••svn:r471 Roger Dingledine2003-09-17
* fix confirmed win32 bug•••svn:r435 Roger Dingledine2003-09-08
* more futzing towards tls•••not there yet svn:r429 Roger Dingledine2003-09-07
* clean read_to_buf more•••svn:r428 Roger Dingledine2003-09-05
* Add initial interfaces and code for TLS support. Interfaces are right; code ...•••svn:r424 Nick Mathewson2003-09-04
* Attempt to make sockets code work right on windows.•••svn:r398 Nick Mathewson2003-08-14
* implemented total read rate limiting•••svn:r365 Roger Dingledine2003-07-05
* simplify fetch_from_buf; cull idle dnsworkers.•••svn:r354 Roger Dingledine2003-06-25
* Change many files to new log_fn format•••svn:r333 Nick Mathewson2003-06-17
* remove on-the-fly compression feature•••it wasn't working, and it was harder than we'd anticipated not worth it. svn:r316 Roger Dingledine2003-06-13
* 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
* terminology shift: data->relay, topic->relay, topic->stream•••svn:r258 Roger Dingledine2003-05-01
* Tests for crypto; more tests for buffers•••svn:r234 Nick Mathewson2003-04-16
* Introduce a few unit tests (from older code), refactor compression setup/tear...•••svn:r232 Nick Mathewson2003-04-15
* Add magic to end of C files to make emacs happy; split test invocation into s...•••svn:r224 Nick Mathewson2003-04-07
* get rid of those nasty tabs•••svn:r216 Roger Dingledine2003-03-24
* Fix message when decompressing•••svn:r214 Nick Mathewson2003-03-19
* Be loud when decompressing•••svn:r213 Nick Mathewson2003-03-19
* Make decompression loud.•••svn:r209 Nick Mathewson2003-03-19
* Add code for end-to-end zlib compression. Still needs flow-control•••svn:r187 Nick Mathewson2003-03-17
* pack into data cells more intelligently•••svn:r173 Roger Dingledine2003-03-10
* better comments and a few patches•••svn:r164 Roger Dingledine2003-03-04
* 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
* more robust http(ish) handling•••svn:r123 Roger Dingledine2002-09-28
* cleanup: don't use size_t when you mean int•••size_t is what you get back from sizeof(). no more, no less. svn:r80 Roger Dingledine2002-08-24
* linkpadding is now off by default.•••svn:r79 Roger Dingledine2002-08-23
* 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
* new config files, some bugfixes•••svn:r51 Roger Dingledine2002-07-16
* 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
* fixed a critical bug in yesterday's changes to buffers.c•••(starting to debug my OP integration) svn:r18 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