Don't always wake the tasklets subscribed to recv or send events as soon as
we had any I/O event, and don't call the wake() method if there were no
subscription, instead, wake the recv tasklet if we received data in h2_recv(),
and wake the send tasklet if we were able to send data in h2_send(), and the
buffer is not full anymore.
Only call the data_cb->wake() method if we get an error/a read 0, just in
case the stream was not subscribed to receive events.
Of course, the flag FLT_CFG_FL_HTX must be used and not
STRM_FLT_FL_HAS_FILTERS. "Fortunately", these 2 flags have the same value, so
everything worked as expected.
When reaching h2_shutr/h2_shutw, as we may have generated an empty frame,
a goaway or a rst, make sure we wake the I/O tasklet, or we may not send
what we just generated.
Also in h2_shutw(), don't forget to return if all went well, we don't want
to subscribe the h2s to wait events.
The previous code was only stopping the listeners in the master, not the
entire proxy.
Since we now have a polling loop in the master, there might be some side
effects, indeed some things that are still initialized. For example the
checks were still running.
When ssl_bc_alpn was meant to be added, a typo slipped in and as a result ssl_fc_alpn behaved as ssl_bc_alpn,
and ssl_bc_alpn was not a valid keyword. this patch aims at fixing this.
This only happens for connections using the h1 mux. We must be sure to force the
version to HTTP/1.1 when the version of the message is 1.1 or above. It is
important for H2 messages to not send an invalid version string (HTTP/2.0) to
peers.
Released version 1.9-dev9 with the following main changes :
- BUILD/MINOR: ssl: fix build with non-alpn/non-npn libssl
- BUG/MINOR: mworker: Do not attempt to close(2) fd -1
- BUILD: compression: fix build error with DEFAULT_MAXZLIBMEM
- MINOR: compression: always create the compression pool
- BUG/MEDIUM: mworker: fix FD leak upon reload
- BUILD: htx: fix fprintf format inconsistency on 32-bit platforms
- BUILD: buffers: buf.h requires unistd to get ssize_t on libmusl
- MINOR: initcall: introduce a way to register init functions to call at boot
- MINOR: init: process all initcalls in order at boot time
- MEDIUM: init: convert all trivial registration calls to initcalls
- MINOR: thread: provide a set of lock initialisers
- MINOR: threads: add new macros to declare self-initializing locks
- MEDIUM: init: use self-initializing spinlocks and rwlocks
- MINOR: initcall: apply initcall to all register_build_opts() calls
- MINOR: initcall: use initcalls for most post_{check,deinit} and per_thread*
- MINOR: initcall: use initcalls for section parsers
- MINOR: memory: add a callback function to create a pool
- MEDIUM: init: use initcall for all fixed size pool creations
- MEDIUM: memory: use pool_destroy_all() to destroy all pools on deinit()
- MEDIUM: initcall: use initcalls for a few initialization functions
- MEDIUM: memory: make the pool cache an array and not a thread_local
- MINOR: ssl: free ctx when libssl doesn't support NPN
- BUG/MINOR: proto_htx: only mark connections private if NTLM is detected
- MINOR: h2: make struct h2_ops static
- BUG/MEDIUM: mworker: avoid leak of client socket
- REORG: mworker: declare master variable in global.h
- BUG/MEDIUM: listeners: CLOEXEC flag is not correctly set
- CLEANUP: http: Fix typo in init_http's comment
- BUILD: Makefile: Disable -Wcast-function-type if it exists.
- BUG/MEDIUM: h2: Don't bogusly error if the previous stream was closed.
- REGTEST/MINOR: script: add run-regtests.sh script
- REGTEST: Add a basic test for the cache.
- BUG/MEDIUM: mux_pt: Don't forget to unsubscribe() on attach.
- BUG/MINOR: ssl: ssl_sock_parse_clienthello ignores session id
- BUG/MEDIUM: connections: Wake the stream once the mux is chosen.
- BUG/MEDIUM: connections: Don't forget to detach the connection from the SI.
- BUG/MEDIUM: stream_interface: Don't check if the handshake is done.
- BUG/MEDIUM: stream_interface: Make sure we read all the data available.
- BUG/MEDIUM: h2: Call h2_process() if there's an error on the connection.
- REGTEST: Fix several issues.
- REGTEST: lua: check socket functionality from a lua-task
- BUG/MEDIUM: session: Remove the session from the session_list in session_free.
- BUG/MEDIUM: streams: Don't assume we have a CS in sess_update_st_con_tcp.
- BUG/MEDIUM: connections: Don't assume we have a mux in connect_server().
- BUG/MEDIUM: connections: Remove the connection from the idle list before destroy.
- BUG/MEDIUM: session: properly clean the outgoing connection before freeing.
- BUG/MEDIUM: mux_pt: Don't try to send if handshake is not done.
- MEDIUM: connections: Put H2 connections in the idle list if http-reuse always.
- MEDIUM: h2: Destroy a connection with no stream if it has no owner.
- MAJOR: sessions: Store multiple outgoing connections in the session.
- MEDIUM: session: Steal owner-less connections on end of transaction.
- MEDIUM: server: Be smarter about deciding to reuse the last server.
- BUG/MEDIUM: Special-case http_proxy when dealing with outgoing connections.
- BUG/MINOR: cfgparse: Fix transition between 2 sections with the same name
- BUG/MINOR: http: Use out buffer instead of trash to display error snapshot
- BUG/MINOR: htx: Fix block size calculation when a start-line is added/replaced
- BUG/MINOR: mux-h1: Fix processing of "Connection: " header on outgoing messages
- BUG/MEDIUM: mux-h1: Reset the H1 parser when an outgoing message is processed
- BUG/MINOR: proto_htx: Send outgoing data to client to start response processing
- BUG/MINOR: htx: Stop a header or a start line lookup on the first EOH or EOM
- BUG/MINOR: connection: report mux modes when HTX is supported
- MINOR: htx: add a function to cut the beginning of a DATA block
- MEDIUM: conn_stream: Add a way to get mux's info on a CS from the upper layer
- MINOR: mux-h1: Implement get_cs_info() callback
- MINOR: stream: Rely on CS's info if it exists and fallback on session's ones
- MINOR: proto_htx: Use conn_stream's info to set t_idle duration when possible
- MINOR: mux-h1: Don't rely on the stream anymore in h1_set_srv_conn_mode()
- MINOR: mux-h1: Write last chunk and trailers if not found in the HTX message
- MINOR: mux-h1: Be prepare to fail when EOM is added during trailers parsing
- MINOR: mux-h1: Subscribe to send in h1_snd_buf() when not all data have been sent
- MINOR: mux-h1: Consume channel's data in a loop in h1_snd_buf()
- MEDIUM: mux-h1: Add keep-alive outgoing connections in connections list
- MINOR: htx: Add function to add an HTX block just before another one
- MINOR: htx: Add function to iterate on an HTX message using HTX blocks
- MINOR: htx: Add a function to find the HTX block corresponding to a data offset
- MINOR: stats: Don't add end-of-data marker and trailers in the HTX response
- MEDIUM: htx: Change htx_sl to be a struct instead of an union
- MINOR: htx: Add the start-line offset for the HTX message in the HTX structure
- MEDIUM: htx: Don't rely on h1_sl anymore except during H1 header parsing
- MINOR: proto-htx: Use the start-line flags to set the HTTP messsage ones
- MINOR: htx: Add BODYLESS flags on the HTX start-line and the HTTP message
- MINOR: proto_htx: Use full HTX messages to send 100-Continue responses
- MINOR: proto_htx: Use full HTX messages to send 103-Early-Hints responses
- MINOR: proto_htx: Use full HTX messages to send 401 and 407 responses
- MINOR: proto_htx: Send valid HTX message when redir mode is enabled on a server
- MINOR: proto_htx: Send valid HTX message to send 30x responses
- MEDIUM: proto_htx: Convert all HTTP error messages into HTX
- MINOR: mux-h1: Process conn_mode on the EOH when no connection header is found
- MINOR: mux-h1: Change client conn_mode on an explicit close for the response
- MINOR: mux-h1: Capture bad H1 messages
- MAJOR: filters: Adapt filters API to be compatible with the HTX represenation
- MEDIUM: proto_htx/filters: Add data filtering during the forwarding
- MINOR: flt_trace: Adapt to be compatible with the HTX representation
- MEDIUM: compression: Adapt to be compatible with the HTX representation
- MINOR: h2: implement H2->HTX request header frame transcoding
- MEDIUM: mux-h2: register mux for both HTTP and HTX modes
- MEDIUM: mux-h2: make h2_rcv_buf() support HTX transfers
- MEDIUM: mux-h2: make h2_snd_buf() HTX-aware
- MEDIUM: mux-h2: add basic H2->HTX transcoding support for headers
- MEDIUM: mux-h2: implement emission of H2 headers frames from HTX blocks
- MEDIUM: mux-h2: implement the emission of DATA frames from HTX DATA blocks
- MEDIUM: mux-h2: support passing H2 DATA frames to HTX blocks
- BUG/MINOR: cfgparse: Fix the call to post parser of the last sections parsed
- BUG/MEDIUM: mux-h2: don't lose the first response header in HTX mode
- BUG/MEDIUM: mux-h2: remove the HTX EOM block on H2 response headers
- MINOR: listener: the mux_proto entry in the bind_conf is const
- MINOR: connection: create conn_get_best_mux_entry()
- MINOR: server: the mux_proto entry in the server is const
- MINOR: config: make sure to associate the proper mux to bind and servers
- MINOR: hpack: add ":path" to the list of common header fields
- MINOR: h2: add new functions to produce an HTX message from an H2 response
- MINOR: mux-h2: mention that the mux is compatible with both sides
- MINOR: mux-h2: implement an outgoing stream allocator : h2c_bck_stream_new()
- MEDIUM: mux-h2: start to create the outgoing mux
- MEDIUM: mux-h2: implement encoding of H2 request on the backend side
- MEDIUM: mux-h2: make h2_frt_decode_headers() direction-agnostic
- MEDIUM: mux-h2: make h2_process_demux() capable of processing responses as well
- MEDIUM: mux-h2: Implement h2_attach().
- MEDIUM: mux-h2: Don't bother flagging outgoing connections as TOOMANY.
- REGTEST: Fix LEVEL 4 script 0 of "connection" module.
- MINOR: connection: Fix a comment.
- MINOR: mux: add a "max_streams" method.
- MEDIUM: servers: Add a way to keep idle connections alive.
- CLEANUP: fix typos in the htx subsystem
- CLEANUP: Fix typo in the chunk headers file
- CLEANUP: Fix typos in the h1 subsystem
- CLEANUP: Fix typos in the h2 subsystem
- CLEANUP: Fix a typo in the mini-clist header
- CLEANUP: Fix a typo in the proto_htx subsystem
- CLEANUP: Fix typos in the proto_tcp subsystem
- CLEANUP: Fix a typo in the signal subsystem
- CLEANUP: Fix a typo in the session subsystem
- CLEANUP: Fix a typo in the queue subsystem
- CLEANUP: Fix typos in the shctx subsystem
- CLEANUP: Fix typos in the socket pair protocol subsystem
- CLEANUP: Fix typos in the map management functions
- CLEANUP: Fix typo in the fwrr subsystem
- CLEANUP: Fix typos in the cli subsystem
- CLEANUP: Fix typo in the 51d subsystem
- CLEANUP: Fix a typo in the base64 subsystem
- CLEANUP: Fix a typo in the connection subsystem
- CLEANUP: Fix a typo in the protocol header file
- CLEANUP: Fix a typo in the checks header file
- CLEANUP: Fix typos in the file descriptor subsystem
- CLEANUP: Fix a typo in the listener subsystem
- BUG/MINOR: lb-map: fix unprotected update to server's score
- BUILD: threads: fix minor build warnings when threads are disabled
These potential null-deref warnings are emitted on gcc 7 and above
when threads are disabled due to the use of objt_server() after an
existing validity test. Let's switch to __objt_server() since we
know the pointer is valid, it will not confuse the compiler.
Some of these may be backported to 1.8.
The loop trying to figure the best server is theorically capable of
finishing the loop with best == NULL, causing the HA_ATOMIC_SUB()
to fail there. However for this to happen the list should be empty,
which is avoided at the beginning of the function. As it is, the
function still remains at risk so better address this now.
This patch should be backported to 1.8.
Add a new keyword for servers, "idle-timeout". If set, unused connections are
kept alive until the timeout happens, and will be picked for reuse if no
other connection is available.
Add a new method to muxes, "max_streams", that returns the max number of
streams the mux can handle. This will be used to know if a mux is in use
or not.
Prevent this script from creating a UNIX socket in ${testdir} which
is the parent directory of the script. Prefer use ${tmpdir} which
is the temporary working directory for the script.
When creating a new stream, don't bother flagging a connection with
H2_CF_DEM_TOOMANY if we created the last available stream. We won't create
any other anyway, because h2_avail_streams() would return 0 available streams,
and has it is a blocking flag, it prevents us from reading data after.
The function now calls h2c_bck_handle_headers() or h2c_frt_handle_headers()
depending on the connection's side. The former doesn't create a new stream
but feeds an existing one. At this point it's possible to forward an H2
request to a backend server and retrieve the response headers.
This function does not really depend on the request, all it does is
also valid for H2 responses found on the backend side, so this patch
renames it and makes it call the appropriate decoder based on the
direction.
This creates an H2 HEADERS frame from an HTX request. The code is
very similar to the response encoding, so probably that in the future
we'll have to factor these functions differently. The HTX's start line
type is used to decide on the direction. We also purposely error out
when trying to encode an H2 request from an H1 message since it's not
implemented.
For now it reports an immediate error when trying to encode the request
since it doesn't parse as a response. We take care of sending the preface
and settings frame with the outgoing connection, and not to wait for a
preface during the H2_CS_PREFACE phase for outgoing connections.
For the backend we'll need to allocate streams as well. Let's do this
with h2c_bck_stream_new(). The stream ID allocator was split from it
so that the caller can decide whether or not to stay on the same
connection or create a new one. It possibly isn't the best way to do
this as once we're on the mux it's too late to give up creation of a
new stream. Another approach would possibly consist in detaching muxes
that reached their connection count limit before they can be reused.
Instead of choosing the stream id as soon as the stream is created, wait
until data is about to be sent. If we don't do that, the stream may send
data out of order, and so the stream 3 may send data before the stream 1,
and then when the stream 1 will try to send data, the other end will
consider that an error, as stream ids should always be increased.
Cc: Olivier Houchard <ohouchard@haproxy.com>
We declare two configurations for the H2 mux. One supporting only
the frontend in HTTP mode and one supporting both sides in HTX mode.
This is only to ease development at this point. Trying to assign an h2
mux on the server side will still fail during h2_init() anyway instead
of at config parsing time.
Currently a mux may be forced on a bind or server line by specifying the
"proto" keyword. The problem is that the mux may depend on the proxy's
mode, which is not known when parsing this keyword, so a wrong mux could
be picked.
Let's simply update the mux entry while checking its validity. We do have
the name and the side, we only need to see if a better mux fits based on
the proxy's mode. It also requires to remove the side check while parsing
the "proto" keyword since a wrong mux could be picked.
This way it becomes possible to declare multiple muxes with the same
protocol names and different sides or modes.
