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* quiche: disable pacing while pacing is not actually performedFrançois Michel2023-05-031-0/+1
| | | | Closes #11068
* urldata: shrink *select_bits int => unsigned charDaniel Stenberg2023-04-261-1/+1
| | | | | | | | | | - dselect_bits - cselect_bits ... are using less than 8 bits. Changed types and moved them towards the end of the structs to fit better. Closes #11025
* http3: expire unpaused transfers in all HTTP/3 backendsStefan Eissing2023-04-251-0/+16
| | | | Closes #11005
* h2/h3: replace `state.drain` counter with `state.dselect_bits`Stefan Eissing2023-04-251-27/+23
| | | | | | | | | | | | | | | | | | | | | - `drain` was used by http/2 and http/3 implementations to indicate that the transfer requires send/recv independant from its socket poll state. Intended as a counter, it was used as bool flag only. - a similar mechanism exists on `connectdata->cselect_bits` where specific protocols can indicate something similar, only for the whole connection. - `cselect_bits` are cleard in transfer.c on use and, importantly, also set when the transfer loop expended its `maxloops` tries. `drain` was not cleared by transfer and the http2/3 implementations had to take care of that. - `dselect_bits` is cleared *and* set by the transfer loop. http2/3 does no longer clear it, only set when new events happen. This change unifies the handling of socket poll overrides, extending `cselect_bits` by a easy handle specific value and a common treatment in transfers. Closes #11005
* HTTP3/quiche: terminate h1 response header when no body is sentStefan Eissing2023-04-241-0/+6
| | | | | | | - fixes a failure in test2501 where a response without body was missing the final empty line Closes #11003
* quiche: Enable IDLE egress handlingStefan Eissing2023-04-181-2/+2
| | | | | | | Follow-up to 544abeea which added the handling but wrongly left it commented out. Closes https://github.com/curl/curl/pull/11000
* http2: support HTTP/2 to forward proxies, non-tunnelingStefan Eissing2023-04-171-40/+44
| | | | | | | | | | | | | | | | | | | - with `--proxy-http2` allow h2 ALPN negotiation to forward proxies - applies to http: requests against a https: proxy only, as https: requests will auto-tunnel - adding a HTTP/1 request parser in http1.c - removed h2h3.c - using new request parser in nghttp2 and all h3 backends - adding test 2603 for request parser - adding h2 proxy test cases to test_10_* scorecard.py: request scoring accidentally always run curl with '-v'. Removed that, expect double numbers. labeller: added http1.* and h2-proxy sources to detection Closes #10967
* http3: check stream_ctx more thoroughly in all backendsStefan Eissing2023-04-131-13/+45
| | | | | | | | | | - callbacks and filter methods might be invoked at unexpected times, e.g. when the transfer's stream_ctx has not been initialized yet or, more likely, has already been taken down. - check for existance of stream_ctx in such places and return an error or silently succeed the call. Closes #10951
* http2: move HTTP/2 stream vars into local contextStefan Eissing2023-04-061-2/+2
| | | | | | | | | | - remove NGHTTP2 members of `struct HTTP` - add `void *h2_ctx` to `struct HTTP` - add `void *h3_ctx` to `struct HTTP` - separate h2/h3 pointers are needed for eyeballing - manage local stream_ctx in http implementations Closes #10877
* proxy: http2 proxy tunnel implementationStefan Eissing2023-04-061-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | - currently only on debug build and when env variable CURL_PROXY_TUNNEL_H2 is present. - will ALPN negotiate with the proxy server and switch tunnel filter based on the protocol negotiated. - http/1.1 tunnel code moved into cf-h1-proxy.[ch] - http/2 tunnel code implemented in cf-h2-proxy.[ch] - tunnel start and ALPN set remains in http_proxy.c - moving all haproxy related code into cf-haproxy.[ch] VTLS changes - SSL filters rely solely on the "alpn" specification they are created with and no longer check conn->bits.tls_enable_alpn. - checks on which ALPN specification to use (or none at all) are done in vtls.c when creating the filter. Testing - added a nghttpx forward proxy to the pytest setup that speaks HTTP/2 and forwards all requests to the Apache httpd forward proxy server. - extending test coverage in test_10 cases - adding proxy tests for direct/tunnel h1/h2 use of basic auth. - adding test for http/1.1 and h2 proxy tunneling to pytest Closes #10780
* http3: improvements across backendsStefan Eissing2023-03-311-515/+625
| | | | | | | | | | | | | | | | | | | | | | | | - ngtcp2: using bufq for recv stream data - internal stream_ctx instead of `struct HTTP` members for quiche, ngtcp2 and msh3 - no more QUIC related members in `struct HTTP` - experimental use of recvmmsg(), disabled by default - testing on my old debian box shows no throughput improvements. - leaving it in, but disabled, for future revisit - vquic: common UDP receive code for ngtcp2 and quiche - vquic: common UDP send code for ngtcp2 and quiche - added pytest skips for known msh3 failures - fix unit2601 to survive torture testing - quiche: using latest `master` from quiche and enabling large download tests, now that key change is supported - fixing test_07_21 where retry handling of starting a stream was faulty - msh3: use bufq for recv buffering headers and data - msh3: replace fprintf debug logging with LOG_CF where possible - msh3: force QUIC expire timers on recv/send to have more than 1 request per second served Closes #10772
* http2: Use KEEP_SEND_HOLD for flow control in HTTP/2Stefan Eissing2023-03-141-1/+1
| | | | | | | | | | | - use the defined, but so far not used, KEEP_SEND_HOLD bit for flow control based suspend of sending in transfers. Prior to this change KEEP_SEND_PAUSE bit was used instead, but that can interfere with pausing streams from the user side via curl_easy_pause. Fixes https://github.com/curl/curl/issues/10751 Closes https://github.com/curl/curl/pull/10753
* url: fix logic in connection reuse to deny reuse on "unclean" connectionsStefan Eissing2023-03-071-1/+27
| | | | | | | | | | | | | | - add parameter to `conn_is_alive()` cfilter method that returns if there is input data waiting on the connection - refrain from re-using connnection from the cache that have input pending - adapt http/2 and http/3 alive checks to digest pending input to check the connection state - remove check_cxn method from openssl as that was just doing what the socket filter now does. - add tests for connection reuse with special server configs Closes #10690
* connect: fix time_connect and time_appconnect timer statisticsStefan Eissing2023-03-061-7/+12
| | | | | | | | | | | | | | - time_connect was not updated when the overall connection failed, e.g. when SSL verification was unsuccessful, refs #10670 - rework gather those values to interrogate involved filters, also from all eyeballing attempts, to report the maximum of those values. - added 3 test cases in test_06 to check reported values on successful, partially failed and totally failed connections. Reported-by: Master Inspire Fixes #10670 Closes #10671
* quic/schannel: fix compiler warningsViktor Szakats2023-02-281-1/+1
| | | | | Fixes #10603 Closes #10616
* vquic: stabilization and improvementsStefan Eissing2023-02-101-280/+498
| | | | | | | | | | | | | | | | | | | | | vquic stabilization - udp send code shared between ngtcp2 and quiche - quiche handling of data and events improved ngtcp2 and pytest improvements - fixes handling of "drain" situations, discovered in scorecard tests with the Caddy server. - improvements in handling transfers that have already data or are already closed to make an early return on recv pytest - adding caddy tests when available scorecard improvemnts. - using correct caddy port - allowing tests for only httpd or caddy Closes #10451
* connections: introduce http/3 happy eyeballsStefan Eissing2023-02-021-110/+186
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | New cfilter HTTP-CONNECT for h3/h2/http1.1 eyeballing. - filter is installed when `--http3` in the tool is used (or the equivalent CURLOPT_ done in the library) - starts a QUIC/HTTP/3 connect right away. Should that not succeed after 100ms (subject to change), a parallel attempt is started for HTTP/2 and HTTP/1.1 via TCP - both attempts are subject to IPv6/IPv4 eyeballing, same as happens for other connections - tie timeout to the ip-version HAPPY_EYEBALLS_TIMEOUT - use a `soft` timeout at half the value. When the soft timeout expires, the HTTPS-CONNECT filter checks if the QUIC filter has received any data from the server. If not, it will start the HTTP/2 attempt. HTTP/3(ngtcp2) improvements. - setting call_data in all cfilter calls similar to http/2 and vtls filters for use in callback where no stream data is available. - returning CURLE_PARTIAL_FILE for prematurely terminated transfers - enabling pytest test_05 for h3 - shifting functionality to "connect" UDP sockets from ngtcp2 implementation into the udp socket cfilter. Because unconnected UDP sockets are weird. For example they error when adding to a pollset. HTTP/3(quiche) improvements. - fixed upload bug in quiche implementation, now passes 251 and pytest - error codes on stream RESET - improved debug logs - handling of DRAIN during connect - limiting pending event queue HTTP/2 cfilter improvements. - use LOG_CF macros for dynamic logging in debug build - fix CURLcode on RST streams to be CURLE_PARTIAL_FILE - enable pytest test_05 for h2 - fix upload pytests and improve parallel transfer performance. GOAWAY handling for ngtcp2/quiche - during connect, when the remote server refuses to accept new connections and closes immediately (so the local conn goes into DRAIN phase), the connection is torn down and a another attempt is made after a short grace period. This is the behaviour observed with nghttpx when we tell it to shut down gracefully. Tested in pytest test_03_02. TLS improvements - ALPN selection for SSL/SSL-PROXY filters in one vtls set of functions, replaces copy of logic in all tls backends. - standardized the infof logging of offered ALPNs - ALPN negotiated: have common function for all backends that sets alpn proprty and connection related things based on the negotiated protocol (or lack thereof). - new tests/tests-httpd/scorecard.py for testing h3/h2 protocol implementation. Invoke: python3 tests/tests-httpd/scorecard.py --help for usage. Improvements on gathering connect statistics and socket access. - new CF_CTRL_CONN_REPORT_STATS cfilter control for having cfilters report connection statistics. This is triggered when the connection has completely connected. - new void Curl_pgrsTimeWas(..) method to report a timer update with a timestamp of when it happend. This allows for updating timers "later", e.g. a connect statistic after full connectivity has been reached. - in case of HTTP eyeballing, the previous changes will update statistics only from the filter chain that "won" the eyeballing. - new cfilter query CF_QUERY_SOCKET for retrieving the socket used by a filter chain. Added methods Curl_conn_cf_get_socket() and Curl_conn_get_socket() for convenient use of this query. - Change VTLS backend to query their sub-filters for the socket when checks during the handshake are made. HTTP/3 documentation on how https eyeballing works. TLS improvements - ALPN selection for SSL/SSL-PROXY filters in one vtls set of functions, replaces copy of logic in all tls backends. - standardized the infof logging of offered ALPNs - ALPN negotiated: have common function for all backends that sets alpn proprty and connection related things based on the negotiated protocol (or lack thereof). Scorecard with Caddy. - configure can be run with `--with-test-caddy=path` to specify which caddy to use for testing - tests/tests-httpd/scorecard.py now measures download speeds with caddy pytest improvements - adding Makfile to clean gen dir - adding nghttpx rundir creation on start - checking httpd version 2.4.55 for test_05 cases where it is needed. Skipping with message if too old. - catch exception when checking for caddy existance on system. Closes #10349
* curl_log: for failf/infof and debug logging implementationsStefan Eissing2023-01-121-43/+36
| | | | | | | | | - new functions and macros for cfilter debugging - set CURL_DEBUG with names of cfilters where debug logging should be enabled - use GNUC __attribute__ to enable printf format checks during compile Closes #10271
* quic: improve connect error message, debugging info, fix false connect reportStefan Eissing2023-01-091-5/+3
| | | | | | | | | | | - ECONNECTREFUSED has not its own fail message in quic filters - Debug logging in connect eyballing improved - Fix bug in ngtcp2/quiche that could lead to false success reporting. Reported-by: Divy Le Ray Fixes #10245 Closes #10248
* quiche: fix build without any HTTP/2 implementationStefan Eissing2023-01-091-4/+0
| | | | | Fixes #10260 Closes #10263
* quic: rename vquic implementations, fix for quiche build.Stefan Eissing2023-01-051-0/+1152
- quiche in debug mode did not build, fixed. - moved all vquic implementation files to prefix curl_* to avoid the potential mixups between provided .h files and our own. - quich passes test 2500 and 2502. 2501, the POST, fail with the body being rejected. Quich bug? Closes #10242