Released version 2.0-dev6 with the following main changes :
- BUG/MEDIUM: connection: fix multiple handshake polling issues
- MINOR: connection: also stop receiving after a SOCKS4 response
- MINOR: mux-h1: don't try to recv() before the connection is ready
- BUG/MEDIUM: mux-h1: only check input data for the current stream, not next one
- MEDIUM: mux-h1: don't use CS_FL_REOS anymore
- CLEANUP: connection: remove the now unused CS_FL_REOS flag
- CONTRIB: debug: add 4 missing connection/conn_stream flags
- MEDIUM: stream: make a full process_stream() loop when completing I/O on exit
- MINOR: server: increase the default pool-purge-delay to 5 seconds
- BUILD: tools: do not use the weak attribute for trace() on obsolete linkers
- BUG/MEDIUM: vars: make sure the scope is always valid when accessing vars
- BUG/MEDIUM: vars: make the tcp/http unset-var() action support conditions
- BUILD: task: fix a build warning when threads are disabled
- CLEANUP: peers: Remove tabs characters.
- CLEANUP: peers: Replace hard-coded values by macros.
- BUG/MINOR: peers: Wrong stick-table update message building.
- MINOR: dict: Add dictionary new data structure.
- MINOR: peers: Add a LRU cache implementation for dictionaries.
- MINOR: stick-table: Add "server_name" new data type.
- MINOR: cfgparse: Space allocation for "server_name" stick-table data type.
- MINOR: proxy: Add a "server by name" tree to proxy.
- MINOR: server: Add a dictionary for server names.
- MINOR: stream: Stickiness server lookup by name.
- MINOR: peers: Make peers protocol support new "server_name" data type.
- MINOR: stick-table: Make the CLI stick-table handler support dictionary entry data type.
- REGTEST: Add a basic server by name stickiness reg test.
- MINOR: peers: Add dictionary cache information to "show peers" CLI command.
- MINOR: peers: Replace hard-coded for peer protocol 64-bits value encoding by macros.
- MINOR: peers: Replace hard-coded values for peer protocol messaging by macros.
- CLEANUP: ssl: remove unneeded defined(OPENSSL_IS_BORINGSSL)
- BUILD: travis-ci improvements
- MINOR: SSL: add client/server random sample fetches
- BUG/MINOR: channel/htx: Don't alter channel during forward for empty HTX message
- BUG/MINOR: contrib/prometheus-exporter: Add HTX data block in one time
- BUG/MINOR: mux-h1: errflag must be set on H1S and not H1M during output processing
- MEDIUM: mux-h1: refactor output processing
- MINOR: mux-h1: Add the flag HAVE_O_CONN on h1s
- MINOR: mux-h1: Add h1_eval_htx_hdrs_size() to estimate size of the HTX headers
- MINOR: mux-h1: Don't count the EOM in the estimated size of headers
- MEDIUM: cache/htx: Always store info about HTX blocks in the cache
- MEDIUM: htx: Add the parsing of trailers of chunked messages
- MINOR: htx: Don't use end-of-data blocks anymore
- BUG/MINOR: mux-h1: Don't send more data than expected
- BUG/MINOR: flt_trace/htx: Only apply the random forwarding on the message body.
- BUG/MINOR: peers: Wrong "server_name" decoding.
- BUG/MEDIUM: servers: Don't attempt to destroy idle connections if disabled.
- MEDIUM: checks: Make sure we unsubscribe before calling cs_destroy().
- MEDIUM: connections: Wake the upper layer even if sending/receiving is disabled.
- MEDIUM: ssl: Handle subscribe by itself.
- MINOR: ssl: Make ssl_sock_handshake() static.
- MINOR: connections: Add a new xprt method, remove_xprt.
- MINOR: connections: Add a new xprt method, add_xprt().
- MEDIUM: connections: Introduce a handshake pseudo-XPRT.
- MEDIUM: connections: Remove CONN_FL_SOCK*
- BUG/MEDIUM: ssl: Don't forget to initialize ctx->send_recv and ctx->recv_wait.
- BUG/MINOR: peers: Wrong server name parsing.
- MINOR: server: really increase the pool-purge-delay default to 5 seconds
- BUG/MINOR: stream: don't emit a send-name-header in conn error or disconnect states
- MINOR: stream-int: use bit fields to match multiple stream-int states at once
- MEDIUM: stream-int: remove dangerous interval checks for stream-int states
- MEDIUM: stream-int: introduce a new state SI_ST_RDY
- MAJOR: stream-int: switch from SI_ST_CON to SI_ST_RDY on I/O
- MEDIUM: stream-int: make idle-conns switch to ST_RDY
- MEDIUM: stream: re-arrange the connection setup status reporting
- MINOR: stream-int: split si_update() into si_update_rx() and si_update_tx()
- MINOR: stream-int: make si_sync_send() from the send code of si_update_both()
- MEDIUM: stream: rearrange the events to remove the loop
- MEDIUM: stream: only loop on flags relevant to the analysers
- MEDIUM: stream: don't abusively loop back on changes on CF_SHUT*_NOW
- BUILD: stream-int: avoid a build warning in dev mode in si_state_bit()
- BUILD: peers: fix a build warning about an incorrect intiialization
- BUG/MINOR: time: make sure only one thread sets global_now at boot
- BUG/MEDIUM: tcp: Make sure we keep the polling consistent in tcp_probe_connect.
The main reason for all the trouble we're facing with stream interface
error or timeout reports during the connection phase is that we currently
can't make the difference between a connection attempt and a validated
connection attempt. It is problematic because we tend to switch early
to SI_ST_EST but can't always do what we want in this state since it's
supposed to be set when we don't need to visit sess_establish() again.
This patch introduces a new state betwen SI_ST_CON and SI_ST_EST, which
is SI_ST_RDY. It indicates that we've verified that the connection is
ready. It's a transient state, like SI_ST_DIS, that cannot persist when
leaving process_stream(). For now it is not set, only verified in various
tests where SI_ST_CON was used or SI_ST_EST depending on the cases.
The stream-int state diagram was minimally updated to reflect the new
state, though it is largely obsolete and would need to be seriously
updated.
An abort during a connect would go to the SI_ST_CLO state without
the buffers shut. This was causing some sessions to never end if
they would abort before the connect request was initiated. This
bug has been introduced after 1.4-dev2.
The doc has been extended to reflect that too.
There were rare situations where it was not easy to detect that a failed
session attempt had occurred and needed some server cleanup. In particular,
client aborts sometimes lead to session leaks on the server side.
A new state "SI_ST_DIS" (disconnected) has been introduced for this. When
a session has been closed at a stream interface but the server cleanup has
not occurred, this state is entered instead of CLO. The cleanup is then
performed there and the state goes to CLO.
A new diagram has been added to show possible stream_interface state
transitions that can occur in a stream-sock. It makes debugging easier.
Willy Tarreau