The previously documented location doesn't work anymore and must not be
used. Warning for backports, different branches are in use depending on
the version (v3.2.10 for 1.7, v3.2.5 for 1.6).
When support for passing SNI to the server was added in 1.6-dev3, there
was no way to validate that the certificate presented by the server would
really match the name requested in the SNI, which is quite a problem as
it allows other (valid) certificates to be presented instead (when hitting
the wrong server or due to a man in the middle).
This patch adds the missing check against the value passed in the SNI.
The "verifyhost" value keeps precedence if set. If no SNI is used and
no verifyhost directive is specified, then the certificate name is not
checked (this is unchanged).
In order to extract the SNI value, it was necessary to make use of
SSL_SESSION_get0_hostname(), which appeared in openssl 1.1.0. This is
a trivial function which returns the value of s->tlsext_hostname, so
it was provided in the compat layer for older versions. After some
refinements from Emmanuel, it now builds with openssl 1.0.2, openssl
1.1.0 and boringssl. A test file was provided to ease testing all cases.
After some careful observation period it may make sense to backport
this to 1.7 and 1.6 as some users rightfully consider this limitation
as a bug.
Cc: Emmanuel Hocdet <manu@gandi.net>
Signed-off-by: Willy Tarreau <w@1wt.eu>
We cannot store more than 32K headers in the structure hdr_idx, because
internaly we use signed short integers. To avoid any bugs (due to an integers
overflow), a check has been added on tune.http.maxhdr to be sure to not set a
value greater than 32767 and lower than 1 (because this is a nonsense to set
this parameter to a value <= 0).
The documentation has been updated accordingly.
This patch can be backported in 1.7, 1.6 and 1.5.
The Openssl's ASYNC API does'nt support moving buffers on SSL_read/write
This patch disables the ASYNC mode dynamically when the handshake
is left and re-enables it on reneg.
SSL/TLS version can be changed per certificat if and only if openssl lib support
earlier callback on handshake and, of course, is implemented in haproxy. It's ok
for BoringSSL. For Openssl, version 1.1.1 have such callback and could support it.
Released version 1.8-dev2 with the following main changes :
- CLEANUP: server: moving netinet/tcp.h inclusion
- DOC: changed "block"(deprecated) examples to http-request deny
- DOC: add few comments to examples.
- DOC: update sample code for PROXY protocol
- DOC: mention lighttpd 1.4.46 implements PROXY
- MINOR server: Restrict dynamic cookie check to the same proxy.
- DOC: stick-table is available in frontend sections
- BUG/MINOR: server : no transparent proxy for DragonflyBSD
- BUILD/MINOR: stats: remove unexpected argument to stats_dump_json_header()
- BUILD/MINOR: tools: fix build warning in debug_hexdump()
- BUG/MINOR: dns: Wrong address family used when creating IPv6 sockets.
- BUG/MINOR: config: missing goto out after parsing an incorrect ACL character
- BUG/MINOR: arg: don't try to add an argument on failed memory allocation
- MEDIUM: server: Inherit CLI weight changes and agent-check weight responses
- BUG/MEDIUM: arg: ensure that we properly unlink unresolved arguments on error
- BUG/MEDIUM: acl: don't free unresolved args in prune_acl_expr()
- BUG/MEDIUM: servers: unbreak server weight propagation
- MINOR: lua: ensure the memory allocator is used all the time
- MINOR: cli: Add a command to send listening sockets.
- MINOR: global: Add an option to get the old listening sockets.
- MINOR: tcp: When binding socket, attempt to reuse one from the old proc.
- MINOR: doc: document the -x flag
- MINOR: proxy: Don't close FDs if not our proxy.
- MINOR: socket transfer: Set a timeout on the socket.
- MINOR: systemd wrapper: add support for passing the -x option.
- BUG/MINOR: server: Fix a wrong error message during 'usesrc' keyword parsing.
- BUG/MAJOR: Broken parsing for valid keywords provided after 'source' setting.
- CLEANUP: logs: typo: simgle => single
- BUG/MEDIUM: acl: proprely release unused args in prune_acl_expr()
- MEDIUM: config: don't check config validity when there are fatal errors
- BUG/MAJOR: Use -fwrapv.
- BUG/MINOR: server: don't use "proxy" when px is really meant.
- BUG/MEDIUM: http: Drop the connection establishment when a redirect is performed
- BUG/MINOR: server: missing default server 'resolvers' setting duplication.
- MINOR: server: Extract the code responsible of copying default-server settings.
- MINOR: server: Extract the code which finalizes server initializations after 'server' lines parsing.
- MINOR: server: Add 'server-template' new keyword supported in backend sections.
- MINOR: server: Add server_template_init() function to initialize servers from a templates.
- DOC: Add documentation for new "server-template" keyword.
- DOC: add layer 4 links/cross reference to "block" keyword.
- DOC: errloc/errorloc302/errorloc303 missing status codes.
- BUG/MEDIUM: lua: memory leak
- CLEANUP: lua: remove test
- BUG/MINOR: hash-balance-factor isn't effective in certain circumstances
- BUG/MINOR: change header-declared function to static inline
- REORG: spoe: move spoe_encode_varint / spoe_decode_varint from spoe to common
- MINOR: Add binary encoding request header sample fetch
- MINOR: proto-http: Add sample fetch wich returns all HTTP headers
- MINOR: Add ModSecurity wrapper as contrib
- BUG/MINOR: ssl: fix warnings about methods for opensslv1.1.
- DOC: update RFC references
- CONTRIB: tcploop: add action "X" to execute a command
- MINOR: server: cli: Add server FQDNs to server-state file and stats socket.
- BUG/MINOR: contrib/mod_security: fix build on FreeBSD
- BUG/MINOR: checks: don't send proxy protocol with agent checks
- MINOR: ssl: add prefer-client-ciphers
- MEDIUM: ssl: revert ssl/tls version settings relative to default-server.
- MEDIUM: ssl: ssl_methods implementation is reworked and factored for min/max tlsxx
- MEDIUM: ssl: calculate the real min/max TLS version and find holes
- MINOR: ssl: support TLSv1.3 for bind and server
- MINOR: ssl: show methods supported by openssl
- MEDIUM: ssl: add ssl-min-ver and ssl-max-ver parameters for bind and server
- MEDIUM: ssl: ssl-min-ver and ssl-max-ver compatibility.
- CLEANUP: retire obsoleted USE_GETSOCKNAME build option
- BUG/MAJOR: dns: Broken kqueue events handling (BSD systems).
- MINOR: sample: Add b64dec sample converter
- BUG/MEDIUM: lua: segfault if a converter or a sample doesn't return anything
- MINOR: cli: add ACCESS_LVL_MASK to store the access level
- MINOR: cli: add 'expose-fd listeners' to pass listeners FDs
- MEDIUM: proxy: zombify proxies only when the expose-fd socket is bound
- MEDIUM: ssl: add basic support for OpenSSL crypto engine
- MAJOR: ssl: add openssl async mode support
- MEDIUM: ssl: handle multiple async engines
- MINOR: boringssl: basic support for OCSP Stapling
- MEDIUM: mworker: replace systemd mode by master worker mode
- MEDIUM: mworker: handle reload and signals
- MEDIUM: mworker: wait mode on reload failure
- MEDIUM: mworker: try to guess the next stats socket to use with -x
- MEDIUM: mworker: exit-on-failure option
- MEDIUM: mworker: workers exit when the master leaves
- DOC: add documentation for the master-worker mode
- MEDIUM: systemd: Type=forking in unit file
- MAJOR: systemd-wrapper: get rid of the wrapper
- MINOR: log: Add logurilen tunable.
- CLEANUP: server.c: missing prototype of srv_free_dns_resolution
- MINOR: dns: smallest DNS fqdn size
- MINOR: dns: functions to manage memory for a DNS resolution structure
- MINOR: dns: parse_server() now uses srv_alloc_dns_resolution()
- REORG: dns: dns_option structure, storage of hostname_dn
- MINOR: dns: new snr_check_ip_callback function
- MAJOR: dns: save a copy of the DNS response in struct resolution
- MINOR: dns: implement a LRU cache for DNS resolutions
- MINOR: dns: make 'ancount' field to match the number of saved records
- MINOR: dns: introduce roundrobin into the internal cache (WIP)
- MAJOR/REORG: dns: DNS resolution task and requester queues
- BUILD: ssl: fix build with OPENSSL_NO_ENGINE
- MINOR: Add Mod Defender integration as contrib
- CLEANUP: str2mask return code comment: non-zero -> zero.
- MINOR: tools: make debug_hexdump() use a const char for the string
- MINOR: tools: make debug_hexdump() take a string prefix
- CLEANUP: connection: remove unused CO_FL_WAIT_DATA
This patch is a major upgrade of the internal run-time DNS resolver in
HAProxy and it brings the following 2 main changes:
1. DNS resolution task
Up to now, DNS resolution was triggered by the health check task.
From now, DNS resolution task is autonomous. It is started by HAProxy
right after the scheduler is available and it is woken either when a
network IO occurs for one of its nameserver or when a timeout is
matched.
From now, this means we can enable DNS resolution for a server without
enabling health checking.
2. Introduction of a dns_requester structure
Up to now, DNS resolution was purposely made for resolving server
hostnames.
The idea, is to ensure that any HAProxy internal object should be able
to trigger a DNS resolution. For this purpose, 2 things has to be done:
- clean up the DNS code from the server structure (this was already
quite clean actually) and clean up the server's callbacks from
manipulating too much DNS resolution
- create an agnostic structure which allows linking a DNS resolution
and a requester of any type (using obj_type enum)
3. Manage requesters through queues
Up to now, there was an uniq relationship between a resolution and it's
owner (aka the requester now). It's a shame, because in some cases,
multiple objects may share the same hostname and may benefit from a
resolution being performed by a third party.
This patch introduces the notion of queues, which are basically lists of
either currently running resolution or waiting ones.
The resolutions are now available as a pool, which belongs to the resolvers.
The pool has has a default size of 64 resolutions per resolvers and is
allocated at configuration parsing.
The default len of request uri in log messages is 1024. In some use
cases, you need to keep the long trail of GET parameters. The only
way to increase this len is to recompile with DEFINE=-DREQURI_LEN=2048.
This commit introduces a tune.http.logurilen configuration directive,
allowing to tune this at runtime.
This patch adds the support of a maximum of 32 engines
in async mode.
Some tests have been done using 2 engines simultaneously.
This patch also removes specific 'async' attribute from the connection
structure. All the code relies only on Openssl functions.
ssl-mode-async is a global configuration parameter which enables
asynchronous processing in OPENSSL for all SSL connections haproxy
handles. With SSL_MODE_ASYNC set, TLS I/O operations may indicate a
retry with SSL_ERROR_WANT_ASYNC with this mode set if an asynchronous
capable engine is used to perform cryptographic operations. Currently
async mode only supports one async-capable engine.
This is the latest version of the patchset which includes Emeric's
updates :
- improved async fd cleaning when openssl reports an fd to delete
- prevent conn_fd_handler from calling SSL_{read,write,handshake} until
the async fd is ready, as these operations are very slow and waste CPU
- postpone of SSL_free to ensure the async operation can complete and
does not cause a dereference a released SSL.
- proper removal of async fd from the fdtab and removal of the unused async
flag.
This patch adds the global 'ssl-engine' keyword. First arg is an engine
identifier followed by a list of default_algorithms the engine will
operate.
If the openssl version is too old, an error is reported when the option
is used.
When HAProxy is running with multiple processes and some listeners
arebound to processes, the unused sockets were not closed in the other
processes. The aim was to be able to send those listening sockets using
the -x option.
However to ensure the previous behavior which was to close those
sockets, we provided the "no-unused-socket" global option.
This patch changes this behavior, it will close unused sockets which are
not in the same process as an expose-fd socket, making the
"no-unused-socket" option useless.
The "no-unused-socket" option was removed in this patch.
This patch changes the stats socket rights for allowing the sending of
listening sockets.
The previous behavior was to allow any unix stats socket with admin
level to send sockets. It's not possible anymore, you have to set this
option to activate the socket sending.
Example:
stats socket /var/run/haproxy4.sock mode 666 expose-fd listeners level user process 4
Add "b64dec" as a new converter which can be used to decode a base64
encoded string into its binary representation. It performs the inverse
operation of the "base64" converter.
'ssl-min-ver' and 'ssl-max-ver' with argument SSLv3, TLSv1.0, TLSv1.1, TLSv1.2
or TLSv1.3 limit the SSL negotiation version to a continuous range. ssl-min-ver
and ssl-max-ver should be used in replacement of no-tls* and no-sslv3. Warning
and documentation are set accordingly.
Plan is to add min-tlsxx max-tlsxx configuration, more consistent than no-tlsxx.
min-tlsxx and max-tlsxx can be overwrite on local definition. This directives
should be the only ones needed in default-server.
To simplify next patches (rework of tls versions settings with min/max) all
ssl/tls version settings relative to default-server are reverted first:
remove: 'sslv3', 'tls*', 'no-force-sslv3', 'no-force-tls*'.
remove from default-server: 'no-sslv3', 'no-tls*'.
Note:
. force-tlsxx == min-tlsxx + max-tlsxx : would be ok in default-server.
. no-tlsxx is keep for compatibility: should not be propagated to default-server.
This patch adds a new stats socket command to modify server
FQDNs at run time.
Its syntax:
set server <backend>/<server> fqdn <FQDN>
This patch also adds FQDNs to server state file at the end
of each line for backward compatibility ("-" if not present).
The sample fetch returns all headers including the last jump line.
The last jump line is used to determine if the block of headers is
truncated or not.
Idea from Aleksandar Lazic: add explanation/links about layer4
tcp-request connection or content reject to "block" keyword.
Add http-request cross ref. to "tcp-request content".
When running with multiple process, if some proxies are just assigned
to some processes, the other processes will just close the file descriptors
for the listening sockets. However, we may still have to provide those
sockets when reloading, so instead we just try hard to pretend those proxies
are dead, while keeping the sockets opened.
A new global option, no-reused-socket", has been added, to restore the old
behavior of closing the sockets not bound to this process.
This reverts commit 266b1a8 ("MEDIUM: server: Inherit CLI weight changes and
agent-check weight responses") from Michal Idzikowski, which is still broken.
It stops propagating weights at the first error encountered, leaving servers
in a random state depending on what LB algorithms are used on other servers
tracking the one experiencing the weight change. It's unsure what the best
way to address this is, but we cannot leave the servers in an inconsistent
state between farms. For example :
backend site1
mode http
balance uri
hash-type consistent
server s1 127.0.0.1:8001 weight 10 track servers/s1
backend site2
mode http
balance uri
server s1 127.0.0.1:8001 weight 10 track servers/s1
backend site3
mode http
balance uri
hash-type consistent
server s1 127.0.0.1:8001 weight 10 track servers/s1
backend servers
server s1 127.0.0.1:8001 weight 10 check inter 1s
The weight change is applied on "servers/s1". It tries to propagate
to the servers tracking it, which are site1/s1, site2/s1 and site3/s1.
Let's say that "weight 50%" is requested. The servers are linked in
reverse-order, so the change is applied to "servers/s1", then to
"site3/s1", then to "site2/s1" and this one fails and rejects the
change. The change is aborted and never propagated to "site1/s1",
which keeps the server in a different state from "site3/s1". At the
very least, in case of error, the changes should probably be unrolled.
Also the error reported on the CLI (when changing from the CLI) simply says :
Backend is using a static LB algorithm and only accepts weights '0%' and '100%'.
Without more indications what the faulty backend is.
Let's revert this change for now, as initially feared it will definitely
cause more harm than good and at least needs to be revisited. It was never
backported to any stable branch so no backport is needed.
When agent-check or CLI command executes relative weight change this patch
propagates it to tracking server allowing grouping many backends running on
same server underneath. Additionaly in case with many src IPs many backends
can have shared state checker, so there won't be unnecessary health checks.
[wt: Note: this will induce some behaviour change on some setups]
Released version 1.8-dev1 with the following main changes :
- BUG/MEDIUM: proxy: return "none" and "unknown" for unknown LB algos
- BUG/MINOR: stats: make field_str() return an empty string on NULL
- DOC: Spelling fixes
- BUG/MEDIUM: http: Fix tunnel mode when the CONNECT method is used
- BUG/MINOR: http: Keep the same behavior between 1.6 and 1.7 for tunneled txn
- BUG/MINOR: filters: Protect args in macros HAS_DATA_FILTERS and IS_DATA_FILTER
- BUG/MINOR: filters: Invert evaluation order of HTTP_XFER_BODY and XFER_DATA analyzers
- BUG/MINOR: http: Call XFER_DATA analyzer when HTTP txn is switched in tunnel mode
- BUG/MAJOR: stream: fix session abort on resource shortage
- OPTIM: stream-int: don't disable polling anymore on DONT_READ
- BUG/MINOR: cli: allow the backslash to be escaped on the CLI
- BUG/MEDIUM: cli: fix "show stat resolvers" and "show tls-keys"
- DOC: Fix map table's format
- DOC: Added 51Degrees conv and fetch functions to documentation.
- BUG/MINOR: http: don't send an extra CRLF after a Set-Cookie in a redirect
- DOC: mention that req_tot is for both frontends and backends
- BUG/MEDIUM: variables: some variable name can hide another ones
- MINOR: lua: Allow argument for actions
- BUILD: rearrange target files by build time
- CLEANUP: hlua: just indent functions
- MINOR: lua: give HAProxy variable access to the applets
- BUG/MINOR: stats: fix be/sessions/max output in html stats
- MINOR: proxy: Add fe_name/be_name fetchers next to existing fe_id/be_id
- DOC: lua: Documentation about some entry missing
- DOC: lua: Add documentation about variable manipulation from applet
- MINOR: Do not forward the header "Expect: 100-continue" when the option http-buffer-request is set
- DOC: Add undocumented argument of the trace filter
- DOC: Fix some typo in SPOE documentation
- MINOR: cli: Remove useless call to bi_putchk
- BUG/MINOR: cli: be sure to always warn the cli applet when input buffer is full
- MINOR: applet: Count number of (active) applets
- MINOR: task: Rename run_queue and run_queue_cur counters
- BUG/MEDIUM: stream: Save unprocessed events for a stream
- BUG/MAJOR: Fix how the list of entities waiting for a buffer is handled
- BUILD/MEDIUM: Fixing the build using LibreSSL
- BUG/MEDIUM: lua: In some case, the return of sample-fetches is ignored (2)
- SCRIPTS: git-show-backports: fix a harmless typo
- SCRIPTS: git-show-backports: add -H to use the hash of the commit message
- BUG/MINOR: stream-int: automatically release SI_FL_WAIT_DATA on SHUTW_NOW
- CLEANUP: applet/lua: create a dedicated ->fcn entry in hlua_cli context
- CLEANUP: applet/table: add an "action" entry in ->table context
- CLEANUP: applet: remove the now unused appctx->private field
- DOC: lua: documentation about time parser functions
- DOC: lua: improve links
- DOC: lua: section declared twice
- MEDIUM: cli: 'show cli sockets' list the CLI sockets
- BUG/MINOR: cli: "show cli sockets" wouldn't list all processes
- BUG/MINOR: cli: "show cli sockets" would always report process 64
- CLEANUP: lua: rename one of the lua appctx union
- BUG/MINOR: lua/cli: bad error message
- MEDIUM: lua: use memory pool for hlua struct in applets
- MINOR: lua/signals: Remove Lua part from signals.
- DOC: cli: show cli sockets
- MINOR: cli: automatically enable a CLI I/O handler when there's no parser
- CLEANUP: memory: remove the now unused cli_parse_show_pools() function
- CLEANUP: applet: group all CLI contexts together
- CLEANUP: stats: move a misplaced stats context initialization
- MINOR: cli: add two general purpose pointers and integers in the CLI struct
- MINOR: appctx/cli: remove the cli_socket entry from the appctx union
- MINOR: appctx/cli: remove the env entry from the appctx union
- MINOR: appctx/cli: remove the "be" entry from the appctx union
- MINOR: appctx/cli: remove the "dns" entry from the appctx union
- MINOR: appctx/cli: remove the "server_state" entry from the appctx union
- MINOR: appctx/cli: remove the "tlskeys" entry from the appctx union
- CONTRIB: tcploop: add limits.h to fix build issue with some compilers
- MINOR/DOC: lua: just precise one thing
- DOC: fix small typo in fe_id (backend instead of frontend)
- BUG/MINOR: Fix the sending function in Lua's cosocket
- BUG/MINOR: lua: memory leak executing tasks
- BUG/MINOR: lua: bad return code
- BUG/MINOR: lua: memleak when Lua/cli fails
- MEDIUM: lua: remove Lua struct from session, and allocate it with memory pools
- CLEANUP: haproxy: statify unexported functions
- MINOR: haproxy: add a registration for build options
- CLEANUP: wurfl: use the build options list to report it
- CLEANUP: 51d: use the build options list to report it
- CLEANUP: da: use the build options list to report it
- CLEANUP: namespaces: use the build options list to report it
- CLEANUP: tcp: use the build options list to report transparent modes
- CLEANUP: lua: use the build options list to report it
- CLEANUP: regex: use the build options list to report the regex type
- CLEANUP: ssl: use the build options list to report the SSL details
- CLEANUP: compression: use the build options list to report the algos
- CLEANUP: auth: use the build options list to report its support
- MINOR: haproxy: add a registration for post-check functions
- CLEANUP: checks: make use of the post-init registration to start checks
- CLEANUP: filters: use the function registration to initialize all proxies
- CLEANUP: wurfl: make use of the late init registration
- CLEANUP: 51d: make use of the late init registration
- CLEANUP: da: make use of the late init registration code
- MINOR: haproxy: add a registration for post-deinit functions
- CLEANUP: wurfl: register the deinit function via the dedicated list
- CLEANUP: 51d: register the deinitialization function
- CLEANUP: da: register the deinitialization function
- CLEANUP: wurfl: move global settings out of the global section
- CLEANUP: 51d: move global settings out of the global section
- CLEANUP: da: move global settings out of the global section
- MINOR: cfgparse: add two new functions to check arguments count
- MINOR: cfgparse: move parsing of "ca-base" and "crt-base" to ssl_sock
- MEDIUM: cfgparse: move all tune.ssl.* keywords to ssl_sock
- MEDIUM: cfgparse: move maxsslconn parsing to ssl_sock
- MINOR: cfgparse: move parsing of ssl-default-{bind,server}-ciphers to ssl_sock
- MEDIUM: cfgparse: move ssl-dh-param-file parsing to ssl_sock
- MEDIUM: compression: move the zlib-specific stuff from global.h to compression.c
- BUG/MEDIUM: ssl: properly reset the reused_sess during a forced handshake
- BUG/MEDIUM: ssl: avoid double free when releasing bind_confs
- BUG/MINOR: stats: fix be/sessions/current out in typed stats
- MINOR: tcp-rules: check that the listener exists before updating its counters
- MEDIUM: spoe: don't create a dummy listener for outgoing connections
- MINOR: listener: move the transport layer pointer to the bind_conf
- MEDIUM: move listener->frontend to bind_conf->frontend
- MEDIUM: ssl: remote the proxy argument from most functions
- MINOR: connection: add a new prepare_bind_conf() entry to xprt_ops
- MEDIUM: ssl_sock: implement ssl_sock_prepare_bind_conf()
- MINOR: connection: add a new destroy_bind_conf() entry to xprt_ops
- MINOR: ssl_sock: implement ssl_sock_destroy_bind_conf()
- MINOR: server: move the use_ssl field out of the ifdef USE_OPENSSL
- MINOR: connection: add a minimal transport layer registration system
- CLEANUP: connection: remove all direct references to raw_sock and ssl_sock
- CLEANUP: connection: unexport raw_sock and ssl_sock
- MINOR: connection: add new prepare_srv()/destroy_srv() entries to xprt_ops
- MINOR: ssl_sock: implement and use prepare_srv()/destroy_srv()
- CLEANUP: ssl: move tlskeys_finalize_config() to a post_check callback
- CLEANUP: ssl: move most ssl-specific global settings to ssl_sock.c
- BUG/MINOR: backend: nbsrv() should return 0 if backend is disabled
- BUG/MEDIUM: ssl: for a handshake when server-side SNI changes
- BUG/MINOR: systemd: potential zombie processes
- DOC: Add timings events schemas
- BUILD: lua: build failed on FreeBSD.
- MINOR: samples: add xx-hash functions
- MEDIUM: regex: pcre2 support
- BUG/MINOR: option prefer-last-server must be ignored in some case
- MINOR: stats: Support "select all" for backend actions
- BUG/MINOR: sample-fetches/stick-tables: bad type for the sample fetches sc*_get_gpt0
- BUG/MAJOR: channel: Fix the definition order of channel analyzers
- BUG/MINOR: http: report real parser state in error captures
- BUILD: scripts: automatically update the branch in version.h when releasing
- MINOR: tools: add a generic hexdump function for debugging
- BUG/MAJOR: http: fix risk of getting invalid reports of bad requests
- MINOR: http: custom status reason.
- MINOR: connection: add sample fetch "fc_rcvd_proxy"
- BUG/MINOR: config: emit a warning if http-reuse is enabled with incompatible options
- BUG/MINOR: tools: fix off-by-one in port size check
- BUG/MEDIUM: server: consider AF_UNSPEC as a valid address family
- MEDIUM: server: split the address and the port into two different fields
- MINOR: tools: make str2sa_range() return the port in a separate argument
- MINOR: server: take the destination port from the port field, not the addr
- MEDIUM: server: disable protocol validations when the server doesn't resolve
- BUG/MEDIUM: tools: do not force an unresolved address to AF_INET:0.0.0.0
- BUG/MINOR: ssl: EVP_PKEY must be freed after X509_get_pubkey usage
- BUG/MINOR: ssl: assert on SSL_set_shutdown with BoringSSL
- MINOR: Use "500 Internal Server Error" for 500 error/status code message.
- MINOR: proto_http.c 502 error txt typo.
- DOC: add deprecation notice to "block"
- MINOR: compression: fix -vv output without zlib/slz
- BUG/MINOR: Reset errno variable before calling strtol(3)
- MINOR: ssl: don't show prefer-server-ciphers output
- OPTIM/MINOR: config: Optimize fullconn automatic computation loading configuration
- BUG/MINOR: stream: Fix how backend-specific analyzers are set on a stream
- MAJOR: ssl: bind configuration per certificat
- MINOR: ssl: add curve suite for ECDHE negotiation
- MINOR: checks: Add agent-addr config directive
- MINOR: cli: Add possiblity to change agent config via CLI/socket
- MINOR: doc: Add docs for agent-addr configuration variable
- MINOR: doc: Add docs for agent-addr and agent-send CLI commands
- BUILD: ssl: fix to build (again) with boringssl
- BUILD: ssl: fix build on OpenSSL 1.0.0
- BUILD: ssl: silence a warning reported for ERR_remove_state()
- BUILD: ssl: eliminate warning with OpenSSL 1.1.0 regarding RAND_pseudo_bytes()
- BUILD: ssl: kill a build warning introduced by BoringSSL compatibility
- BUG/MEDIUM: tcp: don't poll for write when connect() succeeds
- BUG/MINOR: unix: fix connect's polling in case no data are scheduled
- MINOR: server: extend the flags to 32 bits
- BUG/MINOR: lua: Map.end are not reliable because "end" is a reserved keyword
- MINOR: dns: give ability to dns_init_resolvers() to close a socket when requested
- BUG/MAJOR: dns: restart sockets after fork()
- MINOR: chunks: implement a simple dynamic allocator for trash buffers
- BUG/MEDIUM: http: prevent redirect from overwriting a buffer
- BUG/MEDIUM: filters: Do not truncate HTTP response when body length is undefined
- BUG/MEDIUM: http: Prevent replace-header from overwriting a buffer
- BUG/MINOR: http: Return an error when a replace-header rule failed on the response
- BUG/MINOR: sendmail: The return of vsnprintf is not cleanly tested
- BUG/MAJOR: ssl: fix a regression in ssl_sock_shutw()
- BUG/MAJOR: lua segmentation fault when the request is like 'GET ?arg=val HTTP/1.1'
- BUG/MEDIUM: config: reject anything but "if" or "unless" after a use-backend rule
- MINOR: http: don't close when redirect location doesn't start with "/"
- MEDIUM: boringssl: support native multi-cert selection without bundling
- BUG/MEDIUM: ssl: fix verify/ca-file per certificate
- BUG/MEDIUM: ssl: switchctx should not return SSL_TLSEXT_ERR_ALERT_WARNING
- MINOR: ssl: removes SSL_CTX_set_ssl_version call and cleanup CTX creation.
- BUILD: ssl: fix build with -DOPENSSL_NO_DH
- MEDIUM: ssl: add new sample-fetch which captures the cipherlist
- MEDIUM: ssl: remove ssl-options from crt-list
- BUG/MEDIUM: ssl: in bind line, ssl-options after 'crt' are ignored.
- BUG/MINOR: ssl: fix cipherlist captures with sustainable SSL calls
- MINOR: ssl: improved cipherlist captures
- BUG/MINOR: spoe: Fix soft stop handler using a specific id for spoe filters
- BUG/MINOR: spoe: Fix parsing of arguments in spoe-message section
- MAJOR: spoe: Add support of pipelined and asynchronous exchanges with agents
- MINOR: spoe: Add support for pipelining/async capabilities in the SPOA example
- MINOR: spoe: Remove SPOE details from the appctx structure
- MINOR: spoe: Add status code in error variable instead of hardcoded value
- MINOR: spoe: Send a log message when an error occurred during event processing
- MINOR: spoe: Check the scope of sample fetches used in SPOE messages
- MEDIUM: spoe: Be sure to wakeup the good entity waiting for a buffer
- MINOR: spoe: Use the min of all known max_frame_size to encode messages
- MAJOR: spoe: Add support of payload fragmentation in NOTIFY frames
- MINOR: spoe: Add support for fragmentation capability in the SPOA example
- MAJOR: spoe: refactor the filter to clean up the code
- MINOR: spoe: Handle NOTIFY frames cancellation using ABORT bit in ACK frames
- REORG: spoe: Move struct and enum definitions in dedicated header file
- REORG: spoe: Move low-level encoding/decoding functions in dedicated header file
- MINOR: spoe: Improve implementation of the payload fragmentation
- MINOR: spoe: Add support of negation for options in SPOE configuration file
- MINOR: spoe: Add "pipelining" and "async" options in spoe-agent section
- MINOR: spoe: Rely on alertif_too_many_arg during configuration parsing
- MINOR: spoe: Add "send-frag-payload" option in spoe-agent section
- MINOR: spoe: Add "max-frame-size" statement in spoe-agent section
- DOC: spoe: Update SPOE documentation to reflect recent changes
- MINOR: config: warn when some HTTP rules are used in a TCP proxy
- BUG/MEDIUM: ssl: Clear OpenSSL error stack after trying to parse OCSP file
- BUG/MEDIUM: cli: Prevent double free in CLI ACL lookup
- BUG/MINOR: Fix "get map <map> <value>" CLI command
- MINOR: Add nbsrv sample converter
- CLEANUP: Replace repeated code to count usable servers with be_usable_srv()
- MINOR: Add hostname sample fetch
- CLEANUP: Remove comment that's no longer valid
- MEDIUM: http_error_message: txn->status / http_get_status_idx.
- MINOR: http-request tarpit deny_status.
- CLEANUP: http: make http_server_error() not set the status anymore
- MEDIUM: stats: Add JSON output option to show (info|stat)
- MEDIUM: stats: Add show json schema
- BUG/MAJOR: connection: update CO_FL_CONNECTED before calling the data layer
- MINOR: server: Add dynamic session cookies.
- MINOR: cli: Let configure the dynamic cookies from the cli.
- BUG/MINOR: checks: attempt clean shutw for SSL check
- CONTRIB: tcploop: make it build on FreeBSD
- CONTRIB: tcploop: fix time format to silence build warnings
- CONTRIB: tcploop: report action 'K' (kill) in usage message
- CONTRIB: tcploop: fix connect's address length
- CONTRIB: tcploop: use the trash instead of NULL for recv()
- BUG/MEDIUM: listener: do not try to rebind another process' socket
- BUG/MEDIUM server: Fix crash when dynamic is defined, but not key is provided.
- CLEANUP: config: Typo in comment.
- BUG/MEDIUM: filters: Fix channels synchronization in flt_end_analyze
- TESTS: add a test configuration to stress handshake combinations
- BUG/MAJOR: stream-int: do not depend on connection flags to detect connection
- BUG/MEDIUM: connection: ensure to always report the end of handshakes
- MEDIUM: connection: don't test for CO_FL_WAKE_DATA
- CLEANUP: connection: completely remove CO_FL_WAKE_DATA
- BUG: payload: fix payload not retrieving arbitrary lengths
- BUILD: ssl: simplify SSL_CTX_set_ecdh_auto compatibility
- BUILD: ssl: fix OPENSSL_NO_SSL_TRACE for boringssl and libressl
- BUG/MAJOR: http: fix typo in http_apply_redirect_rule
- MINOR: doc: 2.4. Examples should be 2.5. Examples
- BUG/MEDIUM: stream: fix client-fin/server-fin handling
- MINOR: fd: add a new flag HAP_POLL_F_RDHUP to struct poller
- BUG/MINOR: raw_sock: always perfom the last recv if RDHUP is not available
- OPTIM: poll: enable support for POLLRDHUP
- MINOR: kqueue: exclusively rely on the kqueue returned status
- MEDIUM: kqueue: take care of EV_EOF to improve polling status accuracy
- MEDIUM: kqueue: only set FD_POLL_IN when there are pending data
- DOC/MINOR: Fix typos in proxy protocol doc
- DOC: Protocol doc: add checksum, TLV type ranges
- DOC: Protocol doc: add SSL TLVs, rename CHECKSUM
- DOC: Protocol doc: add noop TLV
- MEDIUM: global: add a 'hard-stop-after' option to cap the soft-stop time
- MINOR: dns: improve DNS response parsing to use as many available records as possible
- BUG/MINOR: cfgparse: loop in tracked servers lists not detected by check_config_validity().
- MINOR: server: irrelevant error message with 'default-server' config file keyword.
- MINOR: server: Make 'default-server' support 'backup' keyword.
- MINOR: server: Make 'default-server' support 'check-send-proxy' keyword.
- CLEANUP: server: code alignement.
- MINOR: server: Make 'default-server' support 'non-stick' keyword.
- MINOR: server: Make 'default-server' support 'send-proxy' and 'send-proxy-v2 keywords.
- MINOR: server: Make 'default-server' support 'check-ssl' keyword.
- MINOR: server: Make 'default-server' support 'force-sslv3' and 'force-tlsv1[0-2]' keywords.
- CLEANUP: server: code alignement.
- MINOR: server: Make 'default-server' support 'no-ssl*' and 'no-tlsv*' keywords.
- MINOR: server: Make 'default-server' support 'ssl' keyword.
- MINOR: server: Make 'default-server' support 'send-proxy-v2-ssl*' keywords.
- CLEANUP: server: code alignement.
- MINOR: server: Make 'default-server' support 'verify' keyword.
- MINOR: server: Make 'default-server' support 'verifyhost' setting.
- MINOR: server: Make 'default-server' support 'check' keyword.
- MINOR: server: Make 'default-server' support 'track' setting.
- MINOR: server: Make 'default-server' support 'ca-file', 'crl-file' and 'crt' settings.
- MINOR: server: Make 'default-server' support 'redir' keyword.
- MINOR: server: Make 'default-server' support 'observe' keyword.
- MINOR: server: Make 'default-server' support 'cookie' keyword.
- MINOR: server: Make 'default-server' support 'ciphers' keyword.
- MINOR: server: Make 'default-server' support 'tcp-ut' keyword.
- MINOR: server: Make 'default-server' support 'namespace' keyword.
- MINOR: server: Make 'default-server' support 'source' keyword.
- MINOR: server: Make 'default-server' support 'sni' keyword.
- MINOR: server: Make 'default-server' support 'addr' keyword.
- MINOR: server: Make 'default-server' support 'disabled' keyword.
- MINOR: server: Add 'no-agent-check' server keyword.
- DOC: server: Add docs for "server" and "default-server" new "no-*" and other settings.
- MINOR: doc: fix use-server example (imap vs mail)
- BUG/MEDIUM: tcp: don't require privileges to bind to device
- BUILD: make the release script use shortlog for the final changelog
- BUILD: scripts: fix typo in announce-release error message
- CLEANUP: time: curr_sec_ms doesn't need to be exported
- BUG/MEDIUM: server: Wrong server default CRT filenames initialization.
- BUG/MEDIUM: peers: fix buffer overflow control in intdecode.
- BUG/MEDIUM: buffers: Fix how input/output data are injected into buffers
- BUG/MINOR: http: Fix conditions to clean up a txn and to handle the next request
- CLEANUP: http: Remove channel_congested function
- CLEANUP: buffers: Remove buffer_bounce_realign function
- CLEANUP: buffers: Remove buffer_contig_area and buffer_work_area functions
- MINOR: http: remove useless check on HTTP_MSGF_XFER_LEN for the request
- MINOR: http: Add debug messages when HTTP body analyzers are called
- BUG/MEDIUM: http: Fix blocked HTTP/1.0 responses when compression is enabled
- BUG/MINOR: filters: Don't force the stream's wakeup when we wait in flt_end_analyze
- DOC: fix parenthesis and add missing "Example" tags
- DOC: update the contributing file
- DOC: log-format/tcplog/httplog update
- MINOR: config parsing: add warning when log-format/tcplog/httplog is overriden in "defaults" sections
- urlp_val had unbalanced parenthesis / square brackets
- src_clr_gpc0,src_inc_gpc0,sc2_clr_gpc0,sc2_inc_gpc0,ssl_c_sha1 had
examples not tagged as such.
Another minor doc issue in the use-server example, use-server refers
to server "imap", but the server below is actually called "mail".
Renames the server from "mail" to "imap".
New boolean settings have been added to disable others. Most of them have "no-" as prefix.
"enabled" disables "disabled" setting,
"no-agent-check" disables "agent-check",
"no-backup" disables "backup",
"no-check" disables "check",
"no-check-ssl" disables "check-ssl",
"no-force-sslv3" disables "force-sslv3",
"no-force-tlsv10" disables "force-tlsv10",
"no-force-tlsv11" disables "force-tlsv11",
"no-force-tlsv12" disables "force-tlsv12,
"no-send-proxy" disables "send-proxy",
"no-send-proxy-v2" disables "send-proxy-v2",
"no-send-proxy-v2-ssl" disables "send-proxy-v2-ssl",
"no-send-proxy-v2-ssl-cn" disables "send-proxy-v2-ssl-cn",
"no-ssl" disables "ssl",
"no-verifyhost" disables "verifyhost",
"sslv3" disables "no-sslv3",
"ssl-reuse" disables "no-ssl-reuse",
"stick" disables "non-stick",
"tlsv10" disables "no-tlsv10",
"tlsv11" disables "no-tlsv11",
"tlsv12" disables "no-tlsv12",
"tls-tickets" disables "no-tls-tickets".
Settings with arguments are now supported on "default-server" lines:
"addr", "ca-file", "ciphers", "crl-file", "crt", "cookie", "namespace", "observe",
"redir", "sni", "source", "tcp-ut" and "track".
From now on, all server "settings" including the new ones above are supported by
"default-server" except "id" which is only supported on "server" lines.
When SIGUSR1 is received, haproxy enters in soft-stop and quits when no
connection remains.
It can happen that the instance remains alive for a long time, depending
on timeouts and traffic. This option ensures that soft-stop won't run
for too long.
Example:
global
hard-stop-after 30s # Once in soft-stop, the instance will remain
# alive for at most 30 seconds.
Add SSL-related TLV types PP2_SUBTYPE_SSL_CIPHER,
PP2_SUBTYPE_SSL_SIG_ALG and PP2_SUBTYPE_SSL_KEY_ALG. Rename
PP2_TYPE_CHECKSUM to PP2_TYPE_CRC32C to make it easier to add checksums
using other algorithms. Clarified encoding of the string fields.
Renamed ASCII to US-ASCII as recommended by
https://www.iana.org/assignments/character-sets/character-sets.xhtml.
Add the CRC32c checksum TLV PP2_TYPE_CHECKSUM. Reserve TLV type ranges
CUSTOM, EXPERIMENT and FUTURE. Clarify that only UNSPEC protocol byte is
mandatory to implement on the receiver.
Guillaume Michaud reported against Cyril's haproxy-dconv project
that the index for the Examples section should be 2.5 instead of
2.4.
Should be backported to 1.7 and 1.6, so that the example section
can be linked to:
https://cbonte.github.io/haproxy-dconv/1.6/configuration.html#2.5
This adds 3 new commands to the cli :
enable dynamic-cookie backend <backend> that enables dynamic cookies for a
specified backend
disable dynamic-cookie backend <backend> that disables dynamic cookies for a
specified backend
set dynamic-cookie-key backend <backend> that lets one change the dynamic
cookie secret key, for a specified backend.
This adds a new "dynamic" keyword for the cookie option. If set, a cookie
will be generated for each server (assuming one isn't already provided on
the "server" line), from the IP of the server, the TCP port, and a secret
key provided. To provide the secret key, a new keyword as been added,
"dynamic-cookie-key", for backends.
Example :
backend bk_web
balance roundrobin
dynamic-cookie-key "bla"
cookie WEBSRV insert dynamic
server s1 127.0.0.1:80 check
server s2 192.168.56.1:80 check
This is a first step to be able to dynamically add and remove servers,
without modifying the configuration file, and still have all the load
balancers redirect the traffic to the right server.
Provide a way to generate session cookies, based on the IP address of the
server, the TCP port, and a secret key provided.
This may be used to output the JSON schema which describes the output of
show info json and show stats json.
The JSON output is without any extra whitespace in order to reduce the
volume of output. For human consumption passing the output through a
pretty printer may be helpful.
e.g.:
$ echo "show schema json" | socat /var/run/haproxy.stat stdio | \
python -m json.tool
The implementation does not generate the schema. Some consideration could
be given to integrating the output of the schema with the output of
typed and json info and stats. In particular the types (u32, s64, etc...)
and tags.
A sample verification of show info json and show stats json using
the schema is as follows. It uses the jsonschema python module:
cat > jschema.py << __EOF__
import json
from jsonschema import validate
from jsonschema.validators import Draft3Validator
with open('schema.txt', 'r') as f:
schema = json.load(f)
Draft3Validator.check_schema(schema)
with open('instance.txt', 'r') as f:
instance = json.load(f)
validate(instance, schema, Draft3Validator)
__EOF__
$ echo "show schema json" | socat /var/run/haproxy.stat stdio > schema.txt
$ echo "show info json" | socat /var/run/haproxy.stat stdio > instance.txt
python ./jschema.py
$ echo "show stats json" | socat /var/run/haproxy.stat stdio > instance.txt
python ./jschema.py
Signed-off-by: Simon Horman <horms@verge.net.au>
Add a json parameter to show (info|stat) which will output information
in JSON format. A follow-up patch will add a JSON schema which describes
the format of the JSON output of these commands.
The JSON output is without any extra whitespace in order to reduce the
volume of output. For human consumption passing the output through a
pretty printer may be helpful.
e.g.:
$ echo "show info json" | socat /var/run/haproxy.stat stdio | \
python -m json.tool
STAT_STARTED has bee added in order to track if show output has begun or
not. This is used in order to allow the JSON output routines to only insert
a "," between elements when needed. I would value any feedback on how this
might be done better.
Signed-off-by: Simon Horman <horms@verge.net.au>
It adds "hostname" as a new sample fetch. It does exactly the same as
"%H" in a log format except that it can be used outside of log formats.
Signed-off-by: Nenad Merdanovic <nmerdan@haproxy.com>
This is like the nbsrv() sample fetch function except that it works as
a converter so it can count the number of available servers of a backend
name retrieved using a sample fetch or an environment variable.
Signed-off-by: Nenad Merdanovic <nmerdan@haproxy.com>
Now, when option "set-on-error" is enabled, we set a status code representing
the error occurred instead of "true". For values under 256, it represents an
error coming from the engine. Below 256, it reports a SPOP error. In this case,
to retrieve the right SPOP status code, you must remove 256 to this value. Here
are possible values:
* 1: a timeout occurred during the event processing.
* 2: an error was triggered during the ressources allocation.
* 255: an unknown error occurred during the event processing.
* 256+N: a SPOP error occurred during the event processing.
Now, HAProxy and agents can announce the support for "pipelining" and/or "async"
capabilities during the HELLO handshake. For now, HAProxy always announces the
support of both. In addition, in its HELLO frames. HAproxy adds the "engine-id"
key. It is a uniq string that identify a SPOE engine.
The "pipelining" capability is the ability for a peer to decouple NOTIFY and ACK
frames. This is a symmectical capability. To be used, it must be supported by
HAproxy and agents. Unlike HTTP pipelining, the ACK frames can be send in any
order, but always on the same TCP connection used for the corresponding NOTIFY
frame.
The "async" capability is similar to the pipelining, but here any TCP connection
established between HAProxy and the agent can be used to send ACK frames. if an
agent accepts connections from multiple HAProxy, it can use the "engine-id"
value to group TCP connections.
Use SSL_set_ex_data/SSL_get_ex_data standard API call to store capture.
We need to avoid internal structures/undocumented calls usage to try to
control the beast and limit painful compatibilities.
This new sample-fetches captures the cipher list offer by the client
SSL connection during the client-hello phase. This is useful for
fingerprint the SSL connection.
This patch used boringssl's callback to analyse CLientHello before any
handshake to extract key signature capabilities.
Certificat with better signature (ECDSA before RSA) is choosed
transparenty, if client can support it. RSA and ECDSA certificates can
be declare in a row (without order). This makes it possible to set
different ssl and filter parameter with crt-list.
This patch change the names prefixing it by a "_". So "end" becomes "_end".
The backward compatibility with names without the prefix "_" is assured.
In other way, another the keyword "end" can be used like this: Map['end'].
Thanks Robin H. Johnson for the bug repport
This should be backported in version 1.6 and 1.7
crt-list is extend to support ssl configuration. You can now have
such line in crt-list <file>:
mycert.pem [npn h2,http/1.1]
Support include "npn", "alpn", "verify", "ca_file", "crl_file",
"ecdhe", "ciphers" configuration and ssl options.
"crt-base" is also supported to fetch certificates.
[wt: this one is in fact emulated using http-request deny. This
patch can thus be backported to 1.7, 1.6 and 1.5 so that users
of older versions do not add this keyword in their configs]
fc_rcvd_proxy : boolean
Returns true if the client initiated the connection with a PROXY protocol
header.
A flag is added on the struct connection if a PROXY header is successfully
parsed.
The older 'rsprep' directive allows modification of the status reason.
Extend 'http-response set-status' to take an optional string of the new
status reason.
http-response set-status 418 reason "I'm a coffeepot"
Matching updates in Lua code:
- AppletHTTP.set_status
- HTTP.res_set_status
Signed-off-by: Robin H. Johnson <robbat2@gentoo.org>
It is important to defined analyzers (AN_REQ_* and AN_RES_*) in the same order
they are evaluated in process_stream. This order is really important because
during analyzers evaluation, we run them in the order of the lower bit to the
higher one. This way, when an analyzer adds/removes another one during its
evaluation, we know if it is located before or after it. So, when it adds an
analyzer which is located before it, we can switch to it immediately, even if it
has already been called once but removed since.
With the time, and introduction of new analyzers, this order was broken up. the
main problems come from the filter analyzers. We used values not related with
their evaluation order. Furthermore, we used same values for request and response
analyzers.
So, to fix the bug, filter analyzers have been splitted in 2 distinct lists to
have different analyzers for the request channel than those for the response
channel. And of course, we have moved them to the right place.
Some other analyzers have been reordered to respect the evaluation order:
* AN_REQ_HTTP_TARPIT has been moved just before AN_REQ_SRV_RULES
* AN_REQ_PRST_RDP_COOKIE has been moved just before AN_REQ_STICKING_RULES
* AN_RES_STORE_RULES has been moved just after AN_RES_WAIT_HTTP
Note today we have 29 analyzers, all stored into a 32 bits bitfield. So we can
still add 4 more analyzers before having a problem. A good way to fend off the
problem for a while could be to have a different bitfield for request and
response analyzers.
[wt: all of this must be backported to 1.7, and part of it must be backported
to 1.6 and 1.5]
The parameter "value" of the function TXN.set_var() was not documented.
This is a regression from the commit 85d79c94a9.
This patch must be backported in 1.7
These 2 patches add ability to fetch frontend/backend name in your
logic, so they can be used later to make routing decisions (fe_name) or
taking some actions based on backend which responded to request (be_name).
In our case we needed a fetcher to be able to extract information we
needed from frontend name.
Definitions and examples for 51d.single and 51d.all have been added to
configuration.txt so it now appears in online documentation in addition
to the README, The 51degrees-property-name-list entry has also been
updated to make it clear that multiple properties can be added.
In 1.5-dev20, commit 48bcfda ("MEDIUM: dumpstat: make the CLI parser
understand the backslash as an escape char") introduced support for
backslash on the CLI, but it strips all backslashes in all arguments
instead of only unescaping them, making it impossible to pass a
backslash in an argument.
This will allow us to use a backslash in a command over the socket, eg.
"add acl #0 ABC\\XYZ".
[wt: this should be backported to 1.7 and 1.6]
Released version 1.7.0 with the following main changes :
- SCRIPTS: make publish-release also copy the new SPOE doc
- BUILD: http: include types/sample.h in proto_http.h
- BUILD: debug/flags: remove test for SF_COMP_READY
- CONTRIB: debug/flags: add check for SF_ERR_CHK_PORT
- MINOR: lua: add function which return true if the channel is full.
- MINOR: lua: add ip addresses and network manipulation function
- CONTRIB: tcploop: scriptable TCP I/O for debugging purposes
- CONTRIB: tcploop: implement fork()
- CONTRIB: tcploop: implement logging when called with -v
- CONTRIB: tcploop: update the usage output
- CONTRIB: tcploop: support sending plain strings
- CONTRIB: tcploop: don't report failed send() or recv()
- CONTRIB: tcploop: add basic loops via a jump instruction
- BUG/MEDIUM: channel: bad unlikely macro
- CLEANUP: lua: move comment
- CLEANUP: lua: control executed twice
- BUG/MEDIUM: ssl: Store certificate filename in a variable
- BUG/MINOR: ssl: Print correct filename when error occurs reading OCSP
- CLEANUP: ssl: Remove goto after return dead code
- CLEANUP: ssl: Fix bind keywords name in comments
- DOC: ssl: Use correct wording for ca-sign-pass
- CLEANUP: lua: avoid directly calling getsockname/getpeername()
- BUG/MINOR: stick-table: handle out-of-memory condition gracefully
- MINOR: cli: add private pointer and release function
- MEDIUM: lua: Add cli handler for Lua
- BUG/MEDIUM: connection: check the control layer before stopping polling
- DEBUG: connection: mark the closed FDs with a value that is easier to detect
- BUG/MEDIUM: stick-table: fix regression caused by recent fix for out-of-memory
- BUG/MINOR: cli: properly decrement ref count on tables during failed dumps
- BUG/MEDIUM: lua: In some case, the return of sample-fetche is ignored
- MINOR: filters: Add check_timeouts callback to handle timers expiration on streams
- MINOR: spoe: Add 'timeout processing' option to limit time to process an event
- MINOR: spoe: Remove useless 'timeout ack' option
- MINOR: spoe: Add 'option continue-on-error' statement in spoe-agent section
- MINOR: spoe: Add "maxconnrate" and "maxerrrate" statements
- MINOR: spoe: Add "option set-on-error" statement
- MINOR: stats: correct documentation of process ID for typed output
- BUILD: contrib: fix ip6range build on Centos 7
- BUILD: fix build on Solaris 10/11
- BUG/MINOR: cli: fix pointer size when reporting data/transport layer name
- BUG/MINOR: cli: dequeue from the proxy when changing a maxconn
- BUG/MINOR: cli: wake up the CLI's task after a timeout update
- MINOR: connection: add a few functions to report the data and xprt layers' names
- MINOR: connection: add names for transport and data layers
- REORG: cli: split dumpstats.c in src/cli.c and src/stats.c
- REORG: cli: split dumpstats.h in stats.h and cli.h
- REORG: cli: move ssl CLI functions to ssl_sock.c
- REORG: cli: move map and acl code to map.c
- REORG: cli: move show stat resolvers to dns.c
- MINOR: cli: create new function cli_has_level() to validate permissions
- MINOR: server: create new function cli_find_server() to find a server
- MINOR: proxy: create new function cli_find_frontend() to find a frontend
- REORG: cli: move 'set server' to server.c
- REORG: cli: move 'show pools' to memory.c
- REORG: cli: move 'show servers' to proxy.c
- REORG: cli: move 'show sess' to stream.c
- REORG: cli: move 'show backend' to proxy.c
- REORG: cli: move get/set weight to server.c
- REORG: cli: move "show stat" to stats.c
- REORG: cli: move "show info" to stats.c
- REORG: cli: move dump_text(), dump_text_line(), and dump_binary() to standard.c
- REORG: cli: move table dump/clear/set to stick_table.c
- REORG: cli: move "show errors" out of cli.c
- REORG: cli: make "show env" also use the generic keyword registration
- REORG: cli: move "set timeout" to its own handler
- REORG: cli: move "clear counters" to stats.c
- REORG: cli: move "set maxconn global" to its own handler
- REORG: cli: move "set maxconn server" to server.c
- REORG: cli: move "set maxconn frontend" to proxy.c
- REORG: cli: move "shutdown sessions server" to stream.c
- REORG: cli: move "shutdown session" to stream.c
- REORG: cli: move "shutdown frontend" to proxy.c
- REORG: cli: move "{enable|disable} frontend" to proxy.c
- REORG: cli: move "{enable|disable} server" to server.c
- REORG: cli: move "{enable|disable} health" to server.c
- REORG: cli: move "{enable|disable} agent" to server.c
- REORG: cli: move the "set rate-limit" functions to their own parser
- CLEANUP: cli: rename STAT_CLI_* to CLI_ST_*
- CLEANUP: cli: simplify the request parser a little bit
- CLEANUP: cli: remove assignments to st0 and st2 in keyword parsers
- BUILD: server: remove a build warning introduced by latest series
- BUG/MINOR: log-format: uncatched memory allocation functions
- CLEANUP: log-format: useless file and line in json converter
- CLEANUP/MINOR: log-format: unexport functions parse_logformat_var_args() and parse_logformat_var()
- CLEANUP: log-format: fix return code of the function parse_logformat_var()
- CLEANUP: log-format: fix return code of function parse_logformat_var_args()
- CLEANUP: log-format: remove unused arguments
- MEDIUM: log-format: strict parsing and enable fail
- MEDIUM: log-format/conf: take into account the parse_logformat_string() return code
- BUILD: ssl: make the SSL layer build again with openssl 0.9.8
- BUILD: vars: remove a build warning on vars.c
- MINOR: lua: add utility function for check boolean argument
- MINOR: lua: Add tokenize function.
- BUG/MINOR: conf: calloc untested
- MINOR: http/conf: store the use_backend configuration file and line for logs
- MEDIUM: log-format: Use standard HAProxy log system to report errors
- CLEANUP: sample: report "converter" instead of "conv method" in error messages
- BUG: spoe: Fix parsing of SPOE actions in ACK frames
- MINOR: cli: make "show stat" support a proxy name
- MINOR: cli: make "show errors" support a proxy name
- MINOR: cli: make "show errors" capable of dumping only request or response
- BUG/MINOR: freq-ctr: make swrate_add() support larger values
- CLEANUP: counters: move from 3 types to 2 types
- CLEANUP: cfgparse: cascade the warnif_misplaced_* rules
- REORG: tcp-rules: move tcp rules processing to their own file
- REORG: stkctr: move all the stick counters processing to stick-tables.c
- DOC: update the roadmap file with the latest changes
When dealing with many proxies, it's hard to spot response errors because
all internet-facing frontends constantly receive attacks. This patch now
makes it possible to demand that only request or response errors are dumped
by appending "request" or "reponse" to the show errors command.
For tokenizing a string, standard Lua recommends to use regexes.
The followinf example splits words:
for i in string.gmatch(example, "%S+") do
print(i)
end
This is a little bit overkill for simply split words. This patch
adds a tokenize function which quick and do not use regexes.
It defines the variable to set when an error occurred during an event
processing. It will only be set when an error occurred in the scope of the
transaction. As for all other variables define by the SPOE, it will be
prefixed. So, if your variable name is "error" and your prefix is "my_spoe_pfx",
the variable will be "txn.my_spoe_pfx.error".
When set, the variable is the boolean "true". Note that if "option
continue-on-error" is set, the variable is not automatically removed between
events processing.
"maxconnrate" is the maximum number of connections per second. The SPOE will
stop to open new connections if the maximum is reached and will wait to acquire
an existing one.
"maxerrrate" is the maximum number of errors per second. The SPOE will stop its
processing if the maximum is reached.
These options replace hardcoded macros MAX_NEW_SPOE_APPLETS and
MAX_NEW_SPOE_APPLET_ERRS. We use it to limit SPOE activity, especially when
servers are down..
By default, for a specific stream, when an abnormal/unexpected error occurs, the
SPOE is disabled for all the transaction. So if you have several events
configured, such error on an event will disabled all followings. For TCP
streams, this will disable the SPOE for the whole session. For HTTP streams,
this will disable it for the transaction (request and response).
To bypass this behaviour, you can set 'continue-on-error' option in 'spoe-agent'
section. With this option, only the current event will be ignored.
It is a way to set the maximum time to wait for a stream to process an event,
i.e to acquire a stream to talk with an agent, to encode all messages, to send
the NOTIFY frame, to receive the corrsponding acknowledgement and to process all
actions. It is applied on the stream that handle the client and the server
sessions.
Released version 1.7-dev6 with the following main changes :
- DOC: fix the entry for hash-balance-factor config option
- DOC: Fix typo in description of `-st` parameter in man page
- CLEANUP: cfgparse: Very minor spelling correction
- MINOR: examples: Update haproxy.spec URLs to haproxy.org
- BUG/MEDIUM: peers: on shutdown, wake up the appctx, not the stream
- BUG/MEDIUM: peers: fix use after free in peer_session_create()
- MINOR: peers: make peer_session_forceshutdown() use the appctx and not the stream
- MINOR: peers: remove the pointer to the stream
- BUG/MEDIUM: systemd-wrapper: return correct exit codes
- DOC: stats: provide state details for show servers state
- MEDIUM: tools: make str2ip2() preserve existing ports
- CLEANUP: tools: make ipcpy() preserve the original port
- OPTIM: http: move all http character classs tables into a single one
- OPTIM: http: improve parsing performance of long header lines
- OPTIM: http: improve parsing performance of long URIs
- OPTIM: http: optimize lookup of comma and quote in header values
- BUG/MEDIUM: srv-state: properly restore the DRAIN state
- BUG/MINOR: srv-state: allow to have both CMAINT and FDRAIN flags
- MINOR: server: do not emit warnings/logs/alerts on server state changes at boot
- BUG/MEDIUM: servers: properly propagate the maintenance states during startup
- MEDIUM: wurfl: add Scientiamobile WURFL device detection module
- DOC: move the device detection modules documentation to their own files
- CLEANUP: wurfl: reduce exposure in the rest of the code
- MEDIUM: ssl: Add support for OpenSSL 1.1.0
- MINOR: stream: make option contstats usable again
- MEDIUM: tools: make str2sa_range() return the FQDN even when not resolving
- MINOR: init: move apply_server_state in haproxy.c before MODE_CHECK
- MAJOR: server: postpone address resolution
- MINOR: new srv_admin flag: SRV_ADMF_RMAINT
- MINOR: server: indicate in the logs when RMAINT is cleared
- MINOR: stats: indicate it when a server is down due to resolution
- MINOR: server: make srv_set_admin_state() capable of telling why this happens
- MINOR: dns: implement extra 'hold' timers.
- MAJOR: dns: runtime resolution can change server admin state
- MEDIUM: cli: leave the RMAINT state when setting an IP address on the CLI
- MEDIUM: server: add a new init-addr server line setting
- MEDIUM: server: make use of init-addr
- MINOR: server: implement init-addr none
- MEDIUM: server: make libc resolution failure non-fatal
- MINOR: server: add support for explicit numeric address in init-addr
- DOC: add some documentation for the "init-addr" server keyword
- MINOR: init: add -dr to ignore server address resolution failures
- MEDIUM: server: do not restrict anymore usage of IP address from the state file
- BUG: vars: Fix 'set-var' converter because of a typo
- CLEANUP: remove last references to 'ruleset' section
- MEDIUM: filters: Add attch/detach and stream_set_backend callbacks
- MINOR: filters: Update filters documentation accordingly to recent changes
- MINOR: filters: Call stream_set_backend callbacks before updating backend stats
- MINOR: filters: Remove backend filters attached to a stream only for HTTP streams
- MINOR: flt_trace: Add hexdump option to dump forwarded data
- MINOR: cfgparse: Add functions to backup and restore registered sections
- MINOR: cfgparse: Parse scope lines and save the last one parsed
- REORG: sample: move code to release a sample expression in sample.c
- MINOR: vars: Allow '.' in variable names
- MINOR: vars: Add vars_set_by_name_ifexist function
- MEDIUM: vars: Add a per-process scope for variables
- MINOR: vars: Add 'unset-var' action/converter
- MAJOR: spoe: Add an experimental Stream Processing Offload Engine
- MINOR: spoe: add random ip-reputation service as SPOA example
- MINOR: spoe/checks: Add support for SPOP health checks
- DOC: update ROADMAP file
A new "option spop-check" statement has been added to enable server health
checks based on SPOP HELLO handshake. SPOP is the protocol used by SPOE filters
to talk to servers.
SPOE makes possible the communication with external components to retrieve some
info using an in-house binary protocol, the Stream Processing Offload Protocol
(SPOP). In the long term, its aim is to allow any kind of offloading on the
streams. This first version, besides being experimental, won't do lot of
things. The most important today is to validate the protocol design and lay the
foundations of what will, one day, be a full offload engine for the stream
processing.
So, for now, the SPOE can offload the stream processing before "tcp-request
content", "tcp-response content", "http-request" and "http-response" rules. And
it only supports variables creation/suppression. But, in spite of these limited
features, we can easily imagine to implement a SSO solution, an ip reputation
service or an ip geolocation service.
Internally, the SPOE is implemented as a filter. So, to use it, you must use
following line in a proxy proxy section:
frontend my-front
...
filter spoe [engine <name>] config <file>
...
It uses its own configuration file to keep the HAProxy configuration clean. It
is also a easy way to disable it by commenting out the filter line.
See "doc/SPOE.txt" for all details about the SPOE configuration.
It does the opposite of 'set-var' action/converter. It is really useful for
per-process variables. But, it can be used for any scope.
The lua function 'unset_var' has also been added.
Now it is possible to use variables attached to a process. The scope name is
'proc'. These variables are released only when HAProxy is stopped.
'tune.vars.proc-max-size' directive has been added to confiure the maximum
amount of memory used by "proc" variables. And because memory accounting is
hierachical for variables, memory for "proc" vars includes memory for "sess"
vars.
Now that it is possible to decide whether we prefer to use libc or the
state file to resolve the server's IP address and it is possible to change
a server's IP address at run time on the CLI, let's not restrict the reuse
of the address from the state file anymore to the DNS only.
The impact is that by default the state file will be considered first
(which matches its purpose) and only then the libc. This way any address
change performed at run time over the CLI will be preserved regardless
of DNS usage or not.
It is very common when validating a configuration out of production not to
have access to the same resolvers and to fail on server address resolution,
making it difficult to test a configuration. This option simply appends the
"none" method to the list of address resolution methods for all servers,
ensuring that even if the libc fails to resolve an address, the startup
sequence is not interrupted.
This adds new "hold" timers : nx, refused, timeout, other. This timers
will be used to tell HAProxy to keep an erroneous response as valid for
the corresponding period. For now they're only configured, not enforced.
The server's state is now "MAINT (resolution)" just like we also have
"MAINT (via x/y)" when servers are tracked. The HTML stats page reports
"resolution" in the checks field similarly to what is done for the "via"
entry.
This flag has to be set when an IP address resolution fails (either
using libc at start up or using HAProxy's runtime resolver). This will
automatically trigger the administrative status "MAINT", through the
global mask SRV_ADMF_MAINT.
Quite a lot of people have been complaining about option contstats not
working correctly anymore since about 1.4. The reason was that one reason
for the significant performance boost between 1.3 and 1.4 was the ability
to forward data between a server and a client without waking up the stream
manager. And we couldn't afford to force sessions to constantly wake it
up given that most of the people interested in contstats are also those
interested in high performance transmission.
An idea was experimented with in the past, consisting in limiting the
amount of transmissible data before waking it up, but it was not usable
on slow connections (eg: FTP over modem lines, RDP, SSH) as stats would
be updated too rarely if at all, so that idea was dropped.
During a discussion today another idea came up : ensure that stats are
updated once in a while, since it's the only thing that matters. It
happens that we have the request channel's analyse_exp timeout that is
used to wake the stream up after a configured delay, and that by
definition this timeout is not used when there's no more analyser
(otherwise the stream would wake up and the stats would be updated).
Thus here the idea is to reuse this timeout when there's no analyser
and set it to now+5 seconds so that a stream wakes up at least once
every 5 seconds to update its stats. It should be short enough to
provide smooth traffic graphs and to allow to debug outputs of "show
sess" more easily without inflicting too much load even for very large
number of concurrent connections.
This patch is simple enough and safe enough to be backportable to 1.6
if there is some demand.
Both DeviceAtlas and 51Degrees used to put their building instructions
in the README, representing more than 1/3 of it. It's better to let the
README focus on generic stuff and building procedure and move the DD
docs to their own files.
WURFL is a high-performance and low-memory footprint mobile device
detection software component that can quickly and accurately detect
over 500 capabilities of visiting devices. It can differentiate between
portable mobile devices, desktop devices, SmartTVs and any other types
of devices on which a web browser can be installed.
In order to add WURFL device detection support, you would need to
download Scientiamobile InFuze C API and install it on your system.
Refer to www.scientiamobile.com to obtain a valid InFuze license.
Any useful information on how to configure HAProxy working with WURFL
may be found in:
doc/WURFL-device-detection.txt
doc/configuration.txt
examples/wurfl-example.cfg
Please find more information about WURFL device detection API detection
at https://docs.scientiamobile.com/documentation/infuze/infuze-c-api-user-guide
Released version 1.7-dev5 with the following main changes :
- MINOR: cfgparse: few memory leaks fixes.
- MEDIUM: log: Decompose %Tq in %Th %Ti %TR
- CLEANUP: logs: remove unused log format field definitions
- BUILD/MAJOR:updated 51d Trie implementation to incorperate latest update to 51Degrees.c
- BUG/MAJOR: stream: properly mark the server address as unset on connect retry
- CLEANUP: proto_http: Removing useless variable assignation
- CLEANUP: dumpstats: Removing useless variables allocation
- CLEANUP: dns: Removing usless variable & assignation
- BUG/MINOR: payload: fix SSLv2 version parser
- MINOR: cli: allow the semi-colon to be escaped on the CLI
- MINOR: cli: change a server health check port through the stats socket
- BUG/MINOR: Fix OSX compilation errors
- MAJOR: check: find out which port to use for health check at run time
- MINOR: server: introduction of 3 new server flags
- MINOR: new update_server_addr_port() function to change both server's ADDR and service PORT
- MINOR: cli: ability to change a server's port
- CLEANUP/MINOR dns: comment do not follow up code update
- MINOR: chunk: new strncat function
- MINOR: dns: wrong DNS_MAX_UDP_MESSAGE value
- MINOR: dns: new MAX values
- MINOR: dns: new macro to compute DNS header size
- MINOR: dns: new DNS structures to store received packets
- MEDIUM: dns: new DNS response parser
- MINOR: dns: query type change when last record is a CNAME
- MINOR: dns: proper domain name validation when receiving DNS response
- MINOR: dns: comments in types/dns.h about structures endianness
- BUG/MINOR: displayed PCRE version is running release
- MINOR: show Built with PCRE version
- MINOR: show Running on zlib version
- MEDIUM: make SO_REUSEPORT configurable
- MINOR: enable IP_BIND_ADDRESS_NO_PORT on backend connections
- BUG/MEDIUM: http/compression: Fix how chunked data are copied during the HTTP body parsing
- BUG/MINOR: stats: report the correct conn_time in backend's html output
- BUG/MEDIUM: dns: don't randomly crash on out-of-memory
- MINOR: Add fe_req_rate sample fetch
- MEDIUM: peers: Fix a peer stick-tables synchronization issue.
- MEDIUM: cli: register CLI keywords with cli_register_kw()
- BUILD: Make use of accept4() on OpenBSD.
- MINOR: tcp: make set-src/set-src-port and set-dst/set-dst-port commutative
- DOC: fix missed entry for "set-{src,dst}{,-port}"
- BUG/MINOR: vars: use sess and not s->sess in action_store()
- BUG/MINOR: vars: make smp_fetch_var() more robust against misuses
- BUG/MINOR: vars: smp_fetch_var() doesn't depend on HTTP but on the session
- MINOR: stats: output dcon
- CLEANUP: tcp rules: mention everywhere that tcp-conn rules are L4
- MINOR: counters: add new fields for denied_sess
- MEDIUM: tcp: add registration and processing of TCP L5 rules
- MINOR: stats: emit dses
- DOC: document tcp-request session
- MINOR: ssl: add debug traces
- BUILD/CLEANUP: ssl: Check BIO_reset() return code
- BUG/MINOR: ssl: Check malloc return code
- BUG/MINOR: ssl: prevent multiple entries for the same certificate
- BUG/MINOR: systemd: make the wrapper return a non-null status code on error
- BUG/MINOR: systemd: always restore signals before execve()
- BUG/MINOR: systemd: check return value of calloc()
- MINOR: systemd: report it when execve() fails
- BUG/MEDIUM: systemd: let the wrapper know that haproxy has completed or failed
- MINOR: proxy: add 'served' field to proxy, equal to total of all servers'
- MINOR: backend: add hash-balance-factor option for hash-type consistent
- MINOR: server: compute a "cumulative weight" to allow chash balancing to hit its target
- MEDIUM: server: Implement bounded-load hash algorithm
- SCRIPTS: make git-show-backports also dump a "git show" command
- MINOR: build: Allow linking to device-atlas library file
- MINOR: stats: Escape equals sign on socket dump
0 will mean no balancing occurs; otherwise it represents the ratio
between the highest-loaded server and the average load, times 100 (i.e.
a value of 150 means a 1.5x ratio), assuming equal weights.
Signed-off-by: Andrew Rodland <andrewr@vimeo.com>
These are denied conns. Strangely this wasn't emitted while it used to be
available for a while. It corresponds to the number of connections blocked
by "tcp-request connection reject".
When the tcp/http actions above were introduced in 1.7-dev4, we used to
proceed like this :
- set-src/set-dst would force the port to zero
- set-src-port/set-dst-port would not do anything if the address family is
neither AF_INET nor AF_INET6.
It was a stupid idea of mine to request this behaviour because it ensures
that these functions cannot be used in a wide number of situations. Because
of the first rule, it is necessary to save the source port one way or
another if only the address has to be changed (so you have to use an
variable). Due to the second rule, there's no way to set the source port
on a unix socket without first overwriting the address. And sometimes it's
really not convenient, especially when there's no way to guarantee that all
fields will properly be set.
In order to fix all this, this small change does the following :
- set-src/set-dst always preserve the original port even if the address
family changes. If the previous address family didn't have a port (eg:
AF_UNIX), then the port is set to zero ;
- set-src-port/set-dst-port always preserve the original address. If the
address doesn't have a port, then the family is forced to IPv4 and the
address to "0.0.0.0".
Thanks to this it now becomes possible to perform one action, the other or
both in any order.
The fe_req_rate is similar to fe_sess_rate, but fetches the number
of HTTP requests per second instead of connections/sessions per second.
Signed-off-by: Nenad Merdanovic <nmerdan@anine.io>
Enable IP_BIND_ADDRESS_NO_PORT on backend connections when the source
address is specified without port or port ranges. This is supported
since Linux 4.2/libc 2.23.
If the kernel supports it but the libc doesn't, we can define it at
build time:
make [...] DEFINE=-DIP_BIND_ADDRESS_NO_PORT=24
For more informations about this feature, see Linux commit 90c337da
With Linux officially introducing SO_REUSEPORT support in 3.9 and
its mainstream adoption we have seen more people running into strange
SO_REUSEPORT related issues (a process management issue turning into
hard to diagnose problems because the kernel load-balances between the
new and an obsolete haproxy instance).
Also some people simply want the guarantee that the bind fails when
the old process is still bound.
This change makes SO_REUSEPORT configurable, introducing the command
line argument "-dR" and the noreuseport configuration directive.
A backport to 1.6 should be considered.
Enrichment of the 'set server <b>/<s> addr' cli directive to allow changing
now a server's port.
The new syntax looks like:
set server <b>/<s> addr [port <port>]
Introduction of a new CLI command "set server <srv> check-port <port>' to
allow admins to change a server's health check port at run time.
This changes the equivalent of the configuration server parameter
called 'port'.
Today I was working on an auto-update script for some ACLs, and found
that I couldn't load ACL entries with a semi-colon in them no matter
how I tried to escape it.
As such, I wrote this patch (this one is for 1.7dev, but it applies to
1.5 the same with just line numbers changed), which seems to allow me
to execute a command such as "add acl /etc/foo.lst foo\;bar" over the
socket. It's worth noting that stats_sock_parse_request() already uses
the backslash to escape spaces in words so it makes sense to use it as
well to escape the semi-colon.
Tq is the time between the instant the connection is accepted and a
complete valid request is received. This time includes the handshake
(SSL / Proxy-Protocol), the idle when the browser does preconnect and
the request reception.
This patch decomposes %Tq in 3 measurements names %Th, %Ti, and %TR
which returns respectively the handshake time, the idle time and the
duration of valid request reception. It also adds %Ta which reports
the request's active time, which is the total time without %Th nor %Ti.
It replaces %Tt as the total time, reporting accurate measurements for
HTTP persistent connections.
%Th is avalaible for TCP and HTTP sessions, %Ti, %TR and %Ta are only
avalaible for HTTP connections.
In addition to this, we have new timestamps %tr, %trg and %trl, which
log the date of start of receipt of the request, respectively in the
default format, in GMT time and in local time (by analogy with %t, %T
and %Tl). All of them are obviously only available for HTTP. These values
are more relevant as they more accurately represent the request date
without being skewed by a browser's preconnect nor a keep-alive idle
time.
The HTTP log format and the CLF log format have been modified to
use %tr, %TR, and %Ta respectively instead of %t, %Tq and %Tt. This
way the default log formats now produce the expected output for users
who don't want to manually fiddle with the log-format directive.
Example with the following log-format :
log-format "%ci:%cp [%tr] %ft %b/%s h=%Th/i=%Ti/R=%TR/w=%Tw/c=%Tc/r=%Tr/a=%Ta/t=%Tt %ST %B %CC %CS %tsc %ac/%fc/%bc/%sc/%rc %sq/%bq %hr %hs %{+Q}r"
The request was sent by hand using "openssl s_client -connect" :
Aug 23 14:43:20 haproxy[25446]: 127.0.0.1:45636 [23/Aug/2016:14:43:20.221] test~ test/test h=6/i=2375/R=261/w=0/c=1/r=0/a=262/t=2643 200 145 - - ---- 1/1/0/0/0 0/0 "GET / HTTP/1.1"
=> 6 ms of SSL handshake, 2375 waiting before sending the first char (in
fact the time to type the first line), 261 ms before the end of the request,
no time spent in queue, 1 ms spend connecting to the server, immediate
response, total active time for this request = 262ms. Total time from accept
to close : 2643 ms.
The timing now decomposes like this :
first request 2nd request
|<-------------------------------->|<-------------- ...
t tr t tr ...
---|----|----|----|----|----|----|----|----|--
: Th Ti TR Tw Tc Tr Td : Ti ...
:<---- Tq ---->: :
:<-------------- Tt -------------->:
:<--------- Ta --------->:
Released version 1.7-dev4 with the following main changes :
- MINOR: add list_append_word function
- MEDIUM: init: use list_append_word in haproxy.c
- MEDIUM: init: allow directory as argument of -f
- CLEANUP: config: detect double registration of a config section
- MINOR: log: add the %Td log-format specifier
- MEDIUM: filters: Move HTTP headers filtering in its own callback
- MINOR: filters: Simplify calls to analyzers using 2 new macros
- MEDIUM: filters: Add pre and post analyzer callbacks
- DOC: filters: Update the filters documentation accordingly to recent changes
- BUG/MEDIUM: init: don't use environment locale
- SCRIPTS: teach git-show-backports how to report upstream commits
- SCRIPTS: make git-show-backports capable of limiting its history
- BUG/MAJOR: fix listening IP address storage for frontends
- BUG/MINOR: fix listening IP address storage for frontends (cont)
- DOC: Fix typo so fetch is properly parsed by Cyril's converter
- BUG/MAJOR: http: fix breakage of "reqdeny" causing random crashes
- BUG/MEDIUM: stick-tables: fix breakage in table converters
- MINOR: stick-table: change all stick-table converters' inputs to SMP_T_ANY
- BUG/MEDIUM: dns: unbreak DNS resolver after header fix
- BUILD: fix build on Solaris 11
- BUG/MEDIUM: config: fix multiple declaration of section parsers
- BUG/MEDIUM: stats: show servers state may show an servers from another backend
- BUG/MEDIUM: fix risk of segfault with "show tls-keys"
- MEDIUM: dumpstats: 'show tls-keys' is now able to show secrets
- DOC: update doc about tls-tickets-keys dump
- MEDIUM: tcp: add 'set-src' to 'tcp-request connection'
- MINOR: set the CO_FL_ADDR_FROM_SET flags with 'set-src'
- MEDIUM: tcp/http: add 'set-src-port' action
- MEDIUM: tcp/http: new set-dst/set-dst-port actions
- BUG/MEDIUM: sticktables: segfault in some configuration error cases
- BUILD/MEDIUM: rebuild everything when an include file is changed
- BUILD/MEDIUM: force a full rebuild if some build options change
- BUG/MEDIUM: lua: converters doesn't work
- BUG/MINOR: http: add-header: header name copied twice
- BUG/MEDIUM: http: add-header: buffer overwritten
- BUG/MINOR: ssl: fix potential memory leak in ssl_sock_load_dh_params()
- MINOR: stream: export the function 'smp_create_src_stkctr'
- BUG/MEDIUM: dumpstats: undefined behavior in stats_tlskeys_list()
- MEDIUM: dumpstats: make stats_tlskeys_list() yield-aware during tls-keys dump
- BUG/MINOR: http: url32+src should use the big endian version of url32
- BUG/MINOR: http: url32+src should check cli_conn before using it
- DOC: http: add documentation for url32 and url32+src
- BUG/MINOR: fix http-response set-log-level parsing error
- MINOR: systemd: Use variable for config and pidfile paths
- MINOR: systemd: Perform sanity check on config before reload
- MEDIUM: ssl: support SNI filters with multicerts
- MINOR: ssl: crt-list parsing factor
- BUILD: ssl: fix typo causing a build failure in the multicert patch
- MINOR: listener: add the "accept-netscaler-cip" option to the "bind" keyword
- MINOR: tcp: add "tcp-request connection expect-netscaler-cip layer4"
- BUG/MINOR: init: always ensure that global.rlimit_nofile matches actual limits
- BUG/MINOR: init: ensure that FD limit is raised to the max allowed
- BUG/MEDIUM: external-checks: close all FDs right after the fork()
- BUG/MAJOR: external-checks: use asynchronous signal delivery
- BUG/MINOR: external-checks: do not unblock undesired signals
- CLEANUP: external-check: don't block/unblock SIGCHLD when manipulating the list
- BUG/MEDIUM: filters: Fix data filtering when data are modified
- BUG/MINOR: filters: Fix HTTP parsing when a filter loops on data forwarding
- BUG/MINOR: srv-state: fix incorrect output of state file
- BUG/MINOR: ssl: close ssl key file on error
- BUG/MINOR: http: fix misleading error message for response captures
- BUG/BUILD: don't automatically run "make" on "make install"
- DOC: add missing doc for http-request deny [deny_status <status>]
- CLEANUP: dumpstats: u64 field is an unsigned type.
- BUG/MEDIUM: http: unbreak uri/header/url_param hashing
- BUG/MINOR: Rework slightly commit 9962f8fc to clean code and avoid mistakes
- MINOR: new function my_realloc2 = realloc + free upon failure
- CLEANUP: fixed some usages of realloc leading to memory leak
- Revert "BUG/MINOR: ssl: fix potential memory leak in ssl_sock_load_dh_params()"
- CLEANUP: connection: using internal struct to hold source and dest port.
- DOC: spelling fixes
- BUG/MINOR: ssl: fix potential memory leak in ssl_sock_load_dh_params()
- BUG/MEDIUM: dns: fix alignment issues in the DNS response parser
- BUG/MINOR: Fix endiness issue in DNS header creation code
- BUG/MEDIUM: lua: the function txn_done() from sample fetches can crash
- BUG/MEDIUM: lua: the function txn_done() from action wrapper can crash
- MEDIUM: http: implement http-response track-sc* directive
- BUG/MINOR: peers: Fix peers data decoding issue
- BUG/MINOR: peers: don't count track-sc multiple times on errors
- MINOR: standard: add function "escape_string"
- BUG/MEDIUM: log: use function "escape_string" instead of "escape_chunk"
- MINOR: tcp: Return TCP statistics like RTT and RTT variance
- DOC: lua: remove old functions
- BUG/MEDIUM: lua: somme HTTP manipulation functions are called without valid requests
- DOC: fix json converter example and error message
- BUG/MEDIUM: stream-int: completely detach connection on connect error
- DOC: minor typo fixes to improve HTML parsing by haproxy-dconv
- BUILD: make proto_tcp.c compatible with musl library
- BUG/MAJOR: compression: initialize avail_in/next_in even during flush
- BUG/MEDIUM: samples: make smp_dup() always duplicate the sample
- MINOR: sample: implement smp_is_safe() and smp_make_safe()
- MINOR: sample: provide smp_is_rw() and smp_make_rw()
- BUG/MAJOR: server: the "sni" directive could randomly cause trouble
- BUG/MEDIUM: stick-tables: do not fail on string keys with no allocated size
- BUG/MEDIUM: stick-table: properly convert binary samples to keys
- MINOR: sample: use smp_make_rw() in upper/lower converters
- MINOR: tcp: add dst_is_local and src_is_local
- BUG/MINOR: peers: some updates are pushed twice after a resync.
- BUILD: protocol: fix some build errors on OpenBSD
- BUILD: log: iovec requires to include sys/uio.h on OpenBSD
- BUILD: tcp: do not include netinet/ip.h for IP_TTL
- BUILD: connection: fix build breakage on openbsd due to missing in_systm.h
- BUILD: checks: remove the last strcat and eliminate a warning on OpenBSD
- BUILD: tcp: define SOL_TCP when only IPPROTO_TCP exists
- BUILD: compression: remove a warning when no compression lib is used
- BUILD: poll: remove unused hap_fd_isset() which causes a warning with clang
- MINOR: tcp: add further tcp info fetchers
- BUG/MINOR: peers: empty chunks after a resync.
- BUG/MAJOR: stick-counters: possible crash when using sc_trackers with wrong table
- MINOR: standard.c: ipcmp() function to compare 2 IP addresses stored in 2 struct sockaddr_storage
- MINOR: standard.c: ipcpy() function to copy an IP address from a struct sockaddr_storage into an other one
- MAJOR: listen section: don't use first bind port anymore when no server ports are provided
Adding on to Thierry's work (http://git.haproxy.org/?p=haproxy.git;h=6310bef5)
I have added a few more fetchers for counters based on the tcp_info struct
maintained by the kernel :
fc_unacked, fc_sacked, fc_retrans, fc_fackets, fc_lost,
fc_reordering
Two fields were not added because they're version-dependant :
fc_rcv_rtt, fc_total_retrans
The fields name depend on the operating system. FreeBSD and NetBSD prefix
all the field names with "__" so we have to rely on a few #ifdef for
portability.
It is sometimes needed in application server environments to easily tell
if a source is local to the machine or a remote one, without necessarily
knowing all the local addresses (dhcp, vrrp, etc). Similarly in transparent
proxy configurations it is sometimes desired to tell the difference between
local and remote destination addresses.
This patch adds two new sample fetch functions for this :
dst_is_local : boolean
Returns true if the destination address of the incoming connection is local
to the system, or false if the address doesn't exist on the system, meaning
that it was intercepted in transparent mode. It can be useful to apply
certain rules by default to forwarded traffic and other rules to the traffic
targetting the real address of the machine. For example the stats page could
be delivered only on this address, or SSH access could be locally redirected.
Please note that the check involves a few system calls, so it's better to do
it only once per connection.
src_is_local : boolean
Returns true if the source address of the incoming connection is local to the
system, or false if the address doesn't exist on the system, meaning that it
comes from a remote machine. Note that UNIX addresses are considered local.
It can be useful to apply certain access restrictions based on where the
client comes from (eg: require auth or https for remote machines). Please
note that the check involves a few system calls, so it's better to do it only
once per connection.
The functions "req_replace_value()" and "res_replace_value()"
doesn't exists in the 1.6 version. There inherited from the 1.6dev.
This patch must be backported in 1.6 version
This patch adds 4 new sample fetches which returns the RTT of the
established connexion and the RTT variance. The established connection
can be between the client and HAProxy, and between HAProxy and the
server. This is very useful for statistics. A great use case is the
estimation of the TCP connection time of the client. Note that the
RTT of the server side is not so interesting because we already have
the connect() time.
This enables tracking of sticky counters from current response. The only
difference from "http-request track-sc" is the <key> sample expression
can only make use of samples in response (eg. res.*, status etc.) and
samples below Layer 6.
The function txn_done() ends a transaction. It does not make
sense to call this function from a lua sample-fetch wrapper,
because the role of a sample-fetch is not to terminate a
transaction.
This patch modify the role of the fucntion txn_done() if it
is called from a sample-fetch wrapper, now it just ends the
execution of the Lua code like the done() function.
Must be backported in 1.6
The feature was introduced in 1.6-dev2 by commit 108b1dd ("MEDIUM:
http: configurable http result codes for http-request deny") but the
doc was missing. Thanks to Cyril for noticing.
This must be backported into 1.6.
This configures the client-facing connection to receive a NetScaler
Client IP insertion protocol header before any byte is read from the
socket. This is equivalent to having the "accept-netscaler-cip" keyword
on the "bind" line, except that using the TCP rule allows the PROXY
protocol to be accepted only for certain IP address ranges using an ACL.
This is convenient when multiple layers of load balancers are passed
through by traffic coming from public hosts.
When NetScaler application switch is used as L3+ switch, informations
regarding the original IP and TCP headers are lost as a new TCP
connection is created between the NetScaler and the backend server.
NetScaler provides a feature to insert in the TCP data the original data
that can then be consumed by the backend server.
Specifications and documentations from NetScaler:
https://support.citrix.com/article/CTX205670https://www.citrix.com/blogs/2016/04/25/how-to-enable-client-ip-in-tcpip-option-of-netscaler/
When CIP is enabled on the NetScaler, then a TCP packet is inserted just after
the TCP handshake. This is composed as:
- CIP magic number : 4 bytes
Both sender and receiver have to agree on a magic number so that
they both handle the incoming data as a NetScaler Client IP insertion
packet.
- Header length : 4 bytes
Defines the length on the remaining data.
- IP header : >= 20 bytes if IPv4, 40 bytes if IPv6
Contains the header of the last IP packet sent by the client during TCP
handshake.
- TCP header : >= 20 bytes
Contains the header of the last TCP packet sent by the client during TCP
handshake.
SNI filters used to be ignored with multicerts (eg: those providing
ECDSA and RSA at the same time). This patch makes them work like
other certs.
Note: most of the changes in this patch are due to an extra level of
indent, read it with "git show -b".
The 'set-src' action was not available for tcp actions The action code
has been converted into a function in proto_tcp.c to be used for both
'http-request' and 'tcp-request connection' actions.
Both http and tcp keywords are registered in proto_tcp.c
This patch removes setlocale from the main function. It was introduced
by commit 379d9c7 ("MEDIUM: init: allow directory as argument of -f")
in 1.7-dev a few commits ago after a discussion on the mailing list.
Some regex may have different behaviours depending on the
locale. Some LUA scripts may change their behaviour too
(http://lua-users.org/wiki/LuaLocales).
Without this patch (haproxy is using setlocale) :
$ cat locale.cfg
defaults
mode http
frontend test
bind :9000
mode http
use_backend testbk if { hdr_reg(X-Test) ^\w+$ }
backend testbk
mode http
server s 127.0.0.1:80
$ LANG=fr_FR.UTF-8 ./haproxy -f locale.cfg
$ curl -i -H "X-Test: échec" localhost:9000
HTTP/1.1 200 OK
...
$ LANG=C ./haproxy -f locale.cfg
$ curl -i -H "X-Test: échec" localhost:9000
HTTP/1.0 503 Service Unavailable
...
As suggested by Pavlos, it's too bad that we didn't have a %Td log
format tag given that there are a few mentions of Td corresponding
to the data transmission time already in the doc, so this is now done.
Just like the other specifiers, we report -1 if the connection failed
before reaching the data transmission state.
If -f argument is a directory add all the files (and only files) it
containes to the config files list.
These files are added in lexical order (respecting LC_COLLATE).
Only files with ".cfg" extension are added.
Only non hidden files (not prefixed with ".") are added.
Symlink are followed.
The -f order is still respected:
$ tree -a rootdir
rootdir
|-- dir1
| |-- .6.cfg
| |-- 1.cfg
| |-- 2
| |-- 3.cfg
| |-- 4.cfg -> 1.cfg
| |-- 5 -> 1.cfg
| |-- 7.cfg -> .
| `-- dir4
| `-- 8.cfg
|-- dir2
| |-- 10.cfg
| `-- 9.cfg
|-- dir3
| `-- 11.cfg
|-- link -> dir3/
|-- root1
|-- root2
`-- root3
$ ./haproxy -C rootdir -f root2 -f dir2 -f root3 -f dir1 \
-f link -f root1
root2
dir2/10.cfg
dir2/9.cfg
root3
dir1/1.cfg
dir1/3.cfg
dir1/4.cfg
link/11.cfg
root1
This can be useful on systemd where you can't change the haproxy
commande line options on service reload.
Released version 1.7-dev3 with the following main changes :
- MINOR: sample: Moves ARGS underlying type from 32 to 64 bits.
- BUG/MINOR: log: Don't use strftime() which can clobber timezone if chrooted
- BUILD: namespaces: fix a potential build warning in namespaces.c
- MINOR: da: Using ARG12 macro for the sample fetch and the convertor.
- DOC: add encoding to json converter example
- BUG/MINOR: conf: "listener id" expects integer, but its not checked
- DOC: Clarify tunes.vars.xxx-max-size settings
- CLEANUP: chunk: adding NULL check to chunk_dup allocation.
- CLEANUP: connection: fix double negation on memcmp()
- BUG/MEDIUM: peers: fix incorrect age in frequency counters
- BUG/MEDIUM: Fix RFC5077 resumption when more than TLS_TICKETS_NO are present
- BUG/MAJOR: Fix crash in http_get_fhdr with exactly MAX_HDR_HISTORY headers
- BUG/MINOR: lua: can't load external libraries
- BUG/MINOR: prevent the dump of uninitialized vars
- CLEANUP: map: it seems that the map were planed to be chained
- MINOR: lua: move class registration facilities
- MINOR: lua: remove some useless checks
- CLEANUP: lua: Remove two same functions
- MINOR: lua: refactor the Lua object registration
- MINOR: lua: precise message when a critical error is catched
- MINOR: lua: post initialization
- MINOR: lua: Add internal function which strip spaces
- MINOR: lua: convert field to lua type
- DOC: "addr" parameter applies to both health and agent checks
- DOC: timeout client: pointers to timeout http-request
- DOC: typo on stick-store response
- DOC: stick-table: amend paragraph blaming the loss of table upon reload
- DOC: typo: ACL subdir match
- DOC: typo: maxconn paragraph is wrong due to a wrong buffer size
- DOC: regsub: parser limitation about the inability to use closing square brackets
- DOC: typo: req.uri is now replaced by capture.req.uri
- DOC: name set-gpt0 mismatch with the expected keyword
- MINOR: http: sample fetch which returns unique-id
- MINOR: dumpstats: extract stats fields enum and names
- MINOR: dumpstats: split stats_dump_info_to_buffer() in two parts
- MINOR: dumpstats: split stats_dump_fe_stats() in two parts
- MINOR: dumpstats: split stats_dump_li_stats() in two parts
- MINOR: dumpstats: split stats_dump_sv_stats() in two parts
- MINOR: dumpstats: split stats_dump_be_stats() in two parts
- MINOR: lua: dump general info
- MINOR: lua: add class proxy
- MINOR: lua: add class server
- MINOR: lua: add class listener
- BUG/MEDIUM: stick-tables: some sample-fetch doesn't work in the connection state.
- MEDIUM: proxy: use dynamic allocation for error dumps
- CLEANUP: remove unneeded casts
- CLEANUP: uniformize last argument of malloc/calloc
- DOC: fix "needed" typo
- BUG/MINOR: dumpstats: fix write to global chunk
- BUG/MINOR: dns: inapropriate way out after a resolution timeout
- BUG/MINOR: dns: trigger a DNS query type change on resolution timeout
- CLEANUP: proto_http: few corrections for gcc warnings.
- BUG/MINOR: DNS: resolution structure change
- BUG/MINOR : allow to log cookie for tarpit and denied request
- BUG/MEDIUM: ssl: rewind the BIO when reading certificates
- OPTIM/MINOR: session: abort if possible before connecting to the backend
- DOC: http: rename the unique-id sample and add the documentation
- BUG/MEDIUM: trace.c: rdtsc() is defined in two files
- BUG/MEDIUM: channel: fix miscalculation of available buffer space (2nd try)
- BUG/MINOR: server: risk of over reading the pref_net array.
- BUG/MINOR: cfgparse: couple of small memory leaks.
- BUG/MEDIUM: sample: initialize the pointer before parse_binary call.
- DOC: fix discrepancy in the example for http-request redirect
- MINOR: acl: Add predefined METH_DELETE, METH_PUT
- CLEANUP: .gitignore cleanup
- DOC: Clarify IPv4 address / mask notation rules
- CLEANUP: fix inconsistency between fd->iocb, proto->accept and accept()
- BUG/MEDIUM: fix maxaccept computation on per-process listeners
- BUG/MINOR: listener: stop unbound listeners on startup
- BUG/MINOR: fix maxaccept computation according to the frontend process range
- TESTS: add blocksig.c to run tests with all signals blocked
- MEDIUM: unblock signals on startup.
- MINOR: filters: Print the list of existing filters during HA startup
- MINOR: filters: Typo in an error message
- MINOR: filters: Filters must define the callbacks struct during config parsing
- DOC: filters: Add filters documentation
- BUG/MEDIUM: channel: don't allow to overwrite the reserve until connected
- BUG/MEDIUM: channel: incorrect polling condition may delay event delivery
- BUG/MEDIUM: channel: fix miscalculation of available buffer space (3rd try)
- BUG/MEDIUM: log: fix risk of segfault when logging HTTP fields in TCP mode
- MINOR: Add ability for agent-check to set server maxconn
- CLEANUP: Use server_parse_maxconn_change_request for maxconn CLI updates
- MINOR: filters: add opaque data
- BUG/MEDIUM: lua: protects the upper boundary of the argument list for converters/fetches.
- MINOR: lua: migrate the argument mask to 64 bits type.
- BUG/MINOR: dumpstats: Fix the "Total bytes saved" counter in backends stats
- BUG/MINOR: log: fix a typo that would cause %HP to log <BADREQ>
- BUG/MEDIUM: http: fix incorrect reporting of server errors
- MINOR: channel: add new function channel_congested()
- BUG/MEDIUM: http: fix risk of CPU spikes with pipelined requests from dead client
- BUG/MAJOR: channel: fix miscalculation of available buffer space (4th try)
- BUG/MEDIUM: stream: ensure the SI_FL_DONT_WAKE flag is properly cleared
- BUG/MEDIUM: channel: fix inconsistent handling of 4GB-1 transfers
- BUG/MEDIUM: stats: show servers state may show an empty or incomplete result
- BUG/MEDIUM: stats: show backend may show an empty or incomplete result
- MINOR: stats: fix typo in help messages
- MINOR: stats: show stat resolvers missing in the help message
- BUG/MINOR: dns: fix DNS header definition
- BUG/MEDIUM: dns: fix alignment issue when building DNS queries
- CLEANUP: don't ignore scripts in .gitignore
- BUILD: add a few release and backport scripts in scripts/
This is very useful in complex architecture systems where HAproxy
is balancing DB connections for example. We want to keep the maxconn
high in order to avoid issues with queueing on the LB level when
there is slowness on another part of the system. Example is a case of
an architecture where each thread opens multiple DB connections, which
if get stuck in queue cause a snowball effect (old connections aren't
closed, new ones cannot be established). These connections are mostly
idle and the DB server has no problem handling thousands of them.
Allowing us to dynamically set maxconn depending on the backend usage
(LA, CPU, memory, etc.) enables us to have high maxconn for situations
like above, but lowering it in case there are real issues where the
backend servers become overloaded (cache issues, DB gets hit hard).
The configuration documention has been updated. Doc about the filter line has
been added and a new chapter (§. 9) has been created to list and document
supported filters (for now, flt_trace and flt_http_comp).
The developer documentation about filters has also been added. The is a "pre"
version. Incoming changes in the filter API will require an update.
This documentation requires a deeper review and some TODO need to be complete.
Adds some examples regarding shorthand IPv4 address notation which might
be confused with RFC 4632 CIDR notation, leading to different than
expected results.
Commit c8f0e78 ("DOC: typo: req.uri is now replaced by capture.req.uri")
fixed a discrepancy in the doc but the scheme is still missing, resulting
in a redirect loop. Let's fix this as well. This should be backported to
1.5.
It worth mentionning "timeout http-request" in the "timeout client"
documentation paragraph, to ensure nobody misses this important setting.
backport: 1.5 and above
Adds a little more clarity to the description of the maximum sizes of
the different variable scopes and adds a note about what happens when
the space allocated for variables is too small.
Also fixes some typos and grammar/spelling issues re/ variables and
their naming conventions, copied throughout the document.
Regarding the minor update introduced in the
cd6c3c7cb4 commit, the DeviceAtlas
module is now able to use up to 12 device properties via the
new ARG12 macro.
Released version 1.7-dev2 with the following main changes :
- DOC: lua: fix lua API
- DOC: mailers: typo in 'hostname' description
- DOC: compression: missing mention of libslz for compression algorithm
- BUILD/MINOR: regex: missing header
- BUG/MINOR: stream: bad return code
- DOC: lua: fix somme errors and add implicit types
- MINOR: lua: add set/get priv for applets
- BUG/MINOR: http: fix several off-by-one errors in the url_param parser
- BUG/MINOR: http: Be sure to process all the data received from a server
- MINOR: filters/http: Use a wrapper function instead of stream_int_retnclose
- BUG/MINOR: chunk: make chunk_dup() always check and set dst->size
- DOC: ssl: fixed some formatting errors in crt tag
- MINOR: chunks: ensure that chunk_strcpy() adds a trailing zero
- MINOR: chunks: add chunk_strcat() and chunk_newstr()
- MINOR: chunk: make chunk_initstr() take a const string
- MEDIUM: tools: add csv_enc_append() to preserve the original chunk
- MINOR: tools: make csv_enc_append() always start at the first byte of the chunk
- MINOR: lru: new function to delete <nb> least recently used keys
- DOC: add Ben Shillito as the maintainer of 51d
- BUG/MINOR: 51d: Ensures a unique domain for each configuration
- BUG/MINOR: 51d: Aligns Pattern cache implementation with HAProxy best practices.
- BUG/MINOR: 51d: Releases workset back to pool.
- BUG/MINOR: 51d: Aligned const pointers to changes in 51Degrees.
- CLEANUP: 51d: Aligned if statements with HAProxy best practices and removed casts from malloc.
- MINOR: rename master process name in -Ds (systemd mode)
- DOC: fix a few spelling mistakes
- DOC: fix "workaround" spelling
- BUG/MINOR: examples: Fixing haproxy.spec to remove references to .cfg files
- MINOR: fix the return type for dns_response_get_query_id() function
- MINOR: server state: missing LF (\n) on error message printed when parsing server state file
- BUG/MEDIUM: dns: no DNS resolution happens if no ports provided to the nameserver
- BUG/MAJOR: servers state: server port is erased when dns resolution is enabled on a server
- BUG/MEDIUM: servers state: server port is used uninitialized
- BUG/MEDIUM: config: Adding validation to stick-table expire value.
- BUG/MEDIUM: sample: http_date() doesn't provide the right day of the week
- BUG/MEDIUM: channel: fix miscalculation of available buffer space.
- MEDIUM: pools: add a new flag to avoid rounding pool size up
- BUG/MEDIUM: buffers: do not round up buffer size during allocation
- BUG/MINOR: stream: don't force retries if the server is DOWN
- BUG/MINOR: counters: make the sc-inc-gpc0 and sc-set-gpt0 touch the table
- MINOR: unix: don't mention free ports on EAGAIN
- BUG/CLEANUP: CLI: report the proper field states in "show sess"
- MINOR: stats: send content-length with the redirect to allow keep-alive
- BUG: stream_interface: Reuse connection even if the output channel is empty
- DOC: remove old tunnel mode assumptions
- BUG/MAJOR: http-reuse: fix risk of orphaned connections
- BUG/MEDIUM: http-reuse: do not share private connections across backends
- BUG/MINOR: ssl: Be sure to use unique serial for regenerated certificates
- BUG/MINOR: stats: fix missing comma in stats on agent drain
- MAJOR: filters: Add filters support
- MINOR: filters: Do not reset stream analyzers if the client is gone
- REORG: filters: Prepare creation of the HTTP compression filter
- MAJOR: filters/http: Rewrite the HTTP compression as a filter
- MEDIUM: filters: Use macros to call filters callbacks to speed-up processing
- MEDIUM: filters: remove http_start_chunk, http_last_chunk and http_chunk_end
- MEDIUM: filters: Replace filter_http_headers callback by an analyzer
- MEDIUM: filters/http: Move body parsing of HTTP messages in dedicated functions
- MINOR: filters: Add stream_filters structure to hide filters info
- MAJOR: filters: Require explicit registration to filter HTTP body and TCP data
- MINOR: filters: Remove unused or useless stuff and do small optimizations
- MEDIUM: filters: Optimize the HTTP compression for chunk encoded response
- MINOR: filters/http: Slightly update the parsing of chunks
- MINOR: filters/http: Forward remaining data when a channel has no "data" filters
- MINOR: filters: Add an filter example
- MINOR: filters: Extract proxy stuff from the struct filter
- MINOR: map: Add regex matching replacement
- BUG/MINOR: lua: unsafe initialization
- DOC: lua: fix somme errors
- MINOR: lua: file dedicated to unsafe functions
- MINOR: lua: add "now" time function
- MINOR: standard: add RFC HTTP date parser
- MINOR: lua: Add date functions
- MINOR: lua: move common function
- MINOR: lua: merge function
- MINOR: lua: Add concat class
- MINOR: standard: add function "escape_chunk"
- MEDIUM: log: add a new log format flag "E"
- DOC: add server name at rate-limit sessions example
- BUG/MEDIUM: ssl: fix off-by-one in ALPN list allocation
- BUG/MEDIUM: ssl: fix off-by-one in NPN list allocation
- DOC: LUA: fix some typos and syntax errors
- MINOR: cli: add a new "show env" command
- MEDIUM: config: allow to manipulate environment variables in the global section
- MEDIUM: cfgparse: reject incorrect 'timeout retry' keyword spelling in resolvers
- MINOR: mailers: increase default timeout to 10 seconds
- MINOR: mailers: use <CRLF> for all line endings
- BUG/MAJOR: lua: segfault using Concat object
- DOC: lua: copyrights
- MINOR: common: mask conversion
- MEDIUM: dns: extract options
- MEDIUM: dns: add a "resolve-net" option which allow to prefer an ip in a network
- MINOR: mailers: make it possible to configure the connection timeout
- BUG/MAJOR: lua: applets can't sleep.
- BUG/MINOR: server: some prototypes are renamed
- BUG/MINOR: lua: Useless copy
- BUG/MEDIUM: stats: stats bind-process doesn't propagate the process mask correctly
- BUG/MINOR: server: fix the format of the warning on address change
- CLEANUP: server: add "const" to some message strings
- MINOR: server: generalize the "updater" source
- BUG/MEDIUM: chunks: always reject negative-length chunks
- BUG/MINOR: systemd: ensure we don't miss signals
- BUG/MINOR: systemd: report the correct signal in debug message output
- BUG/MINOR: systemd: propagate the correct signal to haproxy
- MINOR: systemd: ensure a reload doesn't mask a stop
- BUG/MEDIUM: cfgparse: wrong argument offset after parsing server "sni" keyword
- CLEANUP: stats: Avoid computation with uninitialized bits.
- CLEANUP: pattern: Ignore unknown samples in pat_match_ip().
- CLEANUP: map: Avoid memory leak in out-of-memory condition.
- BUG/MINOR: tcpcheck: fix incorrect list usage resulting in failure to load certain configs
- BUG/MAJOR: samples: check smp->strm before using it
- MINOR: sample: add a new helper to initialize the owner of a sample
- MINOR: sample: always set a new sample's owner before evaluating it
- BUG/MAJOR: vars: always retrieve the stream and session from the sample
- CLEANUP: payload: remove useless and confusing nullity checks for channel buffer
- BUG/MINOR: ssl: fix usage of the various sample fetch functions
- MINOR: stats: create fields types suitable for all CSV output data
- MINOR: stats: add all the "show info" fields in a table
- MEDIUM: stats: fill all the show info elements prior to displaying them
- MINOR: stats: add a function to emit fields into a chunk
- MINOR: stats: add stats_dump_info_fields() to dump one field per line
- MEDIUM: stats: make use of stats_dump_info_fields() for "show info"
- MINOR: stats: add a declaration of all stats fields
- MINOR: stats: don't hard-code the CSV fields list anymore
- MINOR: stats: create stats fields storage and CSV dump function
- MEDIUM: stats: convert stats_dump_fe_stats() to use stats_dump_fields_csv()
- MEDIUM: stats: make stats_dump_fe_stats() use stats fields for HTML dump
- MEDIUM: stats: convert stats_dump_li_stats() to use stats_dump_fields_csv()
- MEDIUM: stats: make stats_dump_li_stats() use stats fields for HTML dump
- MEDIUM: stats: convert stats_dump_be_stats() to use stats_dump_fields_csv()
- MEDIUM: stats: make stats_dump_be_stats() use stats fields for HTML dump
- MEDIUM: stats: convert stats_dump_sv_stats() to use stats_dump_fields_csv()
- MEDIUM: stats: make stats_dump_sv_stats() use the stats field for HTML
- MEDIUM: stats: move the server state coloring logic to the server dump function
- MINOR: stats: do not use srv->admin & STATS_ADMF_MAINT in HTML dumps
- MINOR: stats: do not check srv->state for SRV_ST_STOPPED in HTML dumps
- MINOR: stats: make CSV report server check status only when enabled
- MINOR: stats: only report backend's down time if it has servers
- MINOR: stats: prepend '*' in front of the check status when in progress
- MINOR: stats: make HTML stats dump rely on the table for the check status
- MINOR: stats: add agent_status, agent_code, agent_duration to output
- MINOR: stats: add check_desc and agent_desc to the output fields
- MINOR: stats: add check and agent's health values in the output
- MEDIUM: stats: make the HTML server state dump use the CSV states
- MEDIUM: stats: only report observe errors when observe is set
- MEDIUM: stats: expose the same flags for CLI and HTTP accesses
- MEDIUM: stats: report server's address in the CSV output
- MEDIUM: stats: report the cookie value in the server & backend CSV dumps
- MEDIUM: stats: compute the color code only in the HTML form
- MEDIUM: stats: report the listeners' address in the CSV output
- MEDIUM: stats: make it possible to report the WAITING state for listeners
- REORG: stats: dump the frontend's HTML stats via a generic function
- REORG: stats: dump the socket stats via the generic function
- REORG: stats: dump the server stats via the generic function
- REORG: stats: dump the backend stats via the generic function
- MEDIUM: stats: add a new "mode" column to report the proxy mode
- MINOR: stats: report the load balancing algorithm in CSV output
- MINOR: stats: add 3 fields to report the frontend-specific connection stats
- MINOR: stats: report number of intercepted requests for frontend and backends
- MINOR: stats: introduce stats_dump_one_line() to dump one stats line
- CLEANUP: stats: make stats_dump_fields_html() not rely on proxy anymore
- MINOR: stats: add ST_SHOWADMIN to pass the admin info in the regular flags
- MINOR: stats: make stats_dump_fields_html() not use &trash by default
- MINOR: stats: add functions to emit typed fields into a chunk
- MEDIUM: stats: support "show info typed" on the CLI
- MEDIUM: stats: implement a typed output format for stats
- DOC: document the "show info typed" and "show stat typed" output formats
- MINOR: cfgparse: warn when uid parameter is not a number
- MINOR: cfgparse: warn when gid parameter is not a number
- BUG/MINOR: standard: Avoid free of non-allocated pointer
- BUG/MINOR: pattern: Avoid memory leak on out-of-memory condition
- CLEANUP: http: fix a build warning introduced by a recent fix
- BUG/MINOR: log: GMT offset not updated when entering/leaving DST
This was reported in HTML dumps already but not CSV. It reports the
number of monitor and stats requests. Ideally use-service and redirs
should be accounted for as well.
Frontends have extra information compared to other entities, they can
report some statistics at the connection level while the other ones
are limited to the session level. This patch adds 3 more fields for
this :
- conn_rate
- conn_rate_max
- conn_tot
It's worth noting that listeners theorically have such statistics, except
that the distinction between connections and sessions is not clearly made
in the code, so that will have to be improved later.
The server's cookie value is now reported in the "cookie" column and
used as-is from the HTML dump. It was the last reference to the sv
pointer from this place.
The same was done for the backend's dump.
This new field "addr" presents the server's address:port if the client
is either enabled via "stats show legends" in case of HTTP dumps, or
has at least level operator on the CLI. The address formats might be :
- ipv4:port
- [ipv6]:port
- unix
- (error message)
This adds the following fields :
- check_rise [...S]: server's "rise" parameter used by checks
- check_fall [...S]: server's "fall" parameter used by checks
- check_health [...S]: server's health check value between 0 and rise+fall-1
- agent_rise [...S]: agent's "rise" parameter, normally 1
- agent_fall [...S]: agent's "fall" parameter, normally 1
- agent_health [...S]: agent's health parameter, between 0 and rise+fall-1
Added these two new fields to the CSV output :
- check_desc : short human-readable description of check_status
- agent_desc : short human-readable description of agent_status
Also factor two tests for enabled checks.
The agent check status is now reported :
- agent_status : status of last agent check
- agent_code : numeric code reported by agent if any (unused for now)
- agent_duration : time in ms taken to finish last check
This patch introduces a configurable connection timeout for mailers
with a new "timeout mail <time>" directive.
Acked-by: Simon Horman <horms@verge.net.au>
This options prioritize th choice of an ip address matching a network. This is
useful with clouds to prefer a local ip. In some cases, a cloud high
avalailibility service can be announced with many ip addresses on many
differents datacenters. The latency between datacenter is not negligible, so
this patch permitsto prefers a local datacenter. If none address matchs the
configured network, another address is selected.
With new init systems such as systemd, environment variables became a
real mess because they're only considered on startup but not on reload
since the init script's variables cannot be passed to the process that
is signaled to reload.
This commit introduces an alternative method consisting in making it
possible to modify the environment from the global section with directives
like "setenv", "unsetenv", "presetenv" and "resetenv".
Since haproxy supports loading multiple config files, it now becomes
possible to put the host-dependant variables in one file and to
distribute the rest of the configuration to all nodes, without having
to deal with the init system's deficiencies.
Environment changes take effect immediately when the directives are
processed, so it's possible to do perform the same operations as are
usually performed in regular service config files.
Using environment variables in configuration files can make troubleshooting
complicated because there's no easy way to verify that the variables are
correct. This patch introduces a new "show env" command which displays the
whole environment on the CLI, one variable per line.
The socket must at least have level operator to display the environment.
The +E mode escapes characters '"', '\' and ']' with '\' as prefix. It
mostly makes sense to use it in the RFC5424 structured-data log formats.
Example:
log-format-sd %{+Q,+E}o\ [exampleSDID@1234\ header=%[capture.req.hdr(0)]]
Now, http_parse_chunk_size and http_skip_chunk_crlf return the number of bytes
parsed on success. http_skip_chunk_crlf does not use msg->sol anymore.
On the other hand, http_forward_trailers is unchanged. It returns >0 if the end
of trailers is reached and 0 if not. In all cases (except if an error is
encountered), msg->sol contains the length of the last parsed part of the
trailer headers.
Internal doc and comments about msg->sol has been updated accordingly.
Michał Pasierb reported doc inconsistencies regarding the old default
HTTP tunnel mode.
This patch fixes a few of those inconsistencies and should be backported
to both 1.6 and 1.5.
The applet can't have access to the session private data. This patch
fix this problem. Now an applet can use private data stored by actions
and fecthes.
This patch fix the Lua API documentation, and adds some internal link
between values returned and associated class.
This patch can be backported in 1.6.
Released version 1.7-dev1 with the following main changes :
- DOC: specify that stats socket doc (section 9.2) is in management
- BUILD: install only relevant and existing documentation
- CLEANUP: don't ignore debian/ directory if present
- BUG/MINOR: dns: parsing error of some DNS response
- BUG/MEDIUM: namespaces: don't fail if no namespace is used
- BUG/MAJOR: ssl: free the generated SSL_CTX if the LRU cache is disabled
- MEDIUM: dns: Don't use the ANY query type
- BUILD: ssl: fix build error introduced in commit 7969a3 with OpenSSL < 1.0.0
- DOC: fix a typo for a "deviceatlas" keyword
- FIX: small typo in an example using the "Referer" header
- MINOR: cli: ability to set per-server maxconn
- DEBUG/MINOR: memory: add a build option to disable memory pools sharing
- DEBUG/MEDIUM: memory: optionally protect free data in pools
- DEBUG/MEDIUM: memory: add optional control pool memory operations
- MEDIUM: memory: add accounting for failed allocations
- BUG/MEDIUM: config: count memory limits on 64 bits, not 32
- BUG/MAJOR: dns: first DNS response packet not matching queried hostname may lead to a loop
- BUG/MINOR: dns: unable to parse CNAMEs response
- BUG/MINOR: examples/haproxy.init: missing brace in quiet_check()
- DOC: deviceatlas: more example use cases.
- MINOR: config: allow IPv6 bracketed literals
- BUG/BUILD: replace haproxy-systemd-wrapper with $(EXTRA) in install-bin.
- BUILD: add Haiku as supported target.
- BUG/MAJOR: http: don't requeue an idle connection that is already queued
- DOC: typo on capture.res.hdr and capture.req.hdr
- BUG/MINOR: dns: check for duplicate nameserver id in a resolvers section was missing
- CLEANUP: use direction names in place of numeric values
- BUG/MEDIUM: lua: sample fetches based on response doesn't work
- MINOR: check: add agent-send server parameter
- BUG/MINOR: http rule: http capture 'id' rule points to a non existing id
- BUG/MINOR: server: check return value of fgets() in apply_server_state()
- BUG/MINOR: acl: don't use record layer in req_ssl_ver
- BUILD: freebsd: double declaration
- BUG/MEDIUM: lua: clean output buffer
- BUILD: check for libressl to be able to build against it
- DOC: lua-api/index.rst small example fixes, spelling correction.
- DOC: lua: architecture and first steps
- DOC: relation between timeout http-request and option http-buffer-request
- BUILD: Make deviceatlas require PCRE
- BUG: http: do not abort keep-alive connections on server timeout
- BUG/MEDIUM: http: switch the request channel to no-delay once done.
- BUG/MINOR: lua: don't force-sslv3 LUA's SSL socket
- BUILD/MINOR: http: proto_http.h needs sample.h
- BUG/MEDIUM: http: don't enable auto-close on the response side
- BUG/MEDIUM: stream: fix half-closed timeout handling
- CLEANUP: compression: don't allocate DEFAULT_MAXZLIBMEM without USE_ZLIB
- BUG/MEDIUM: cli: changing compression rate-limiting must require admin level
- BUG/MEDIUM: sample: urlp can't match an empty value
- BUILD: dumpstats: silencing warning for printf format specifier / time_t
- CLEANUP: proxy: calloc call inverted arguments
- MINOR: da: silent logging by default and displaying DeviceAtlas support if built.
- BUG/MEDIUM: da: stop DeviceAtlas processing in the convertor if there is no input.
- DOC: Edited 51Degrees section of README/
- BUG/MEDIUM: checks: email-alert not working when declared in defaults
- BUG/MINOR: checks: email-alert causes a segfault when an unknown mailers section is configured
- BUG/MINOR: checks: typo in an email-alert error message
- BUG/MINOR: tcpcheck: conf parsing error when no port configured on server and last rule is a CONNECT with no port
- BUG/MINOR: tcpcheck: conf parsing error when no port configured on server and first rule(s) is (are) COMMENT
- BUG/MEDIUM: http: fix http-reuse when frontend and backend differ
- DOC: prefer using http-request/response over reqXXX/rspXXX directives
- CLEANUP: haproxy: using _GNU_SOURCE instead of __USE_GNU macro.
- MINOR: ssl: Added cert_key_and_chain struct
- MEDIUM: ssl: Added support for creating SSL_CTX with multiple certs
- MINOR: ssl: Added multi cert support for crt-list config keyword
- MEDIUM: ssl: Added multi cert support for loading crt directories
- MEDIUM: ssl: Added support for Multi-Cert OCSP Stapling
- BUILD: ssl: set SSL_SOCK_NUM_KEYTYPES with openssl < 1.0.2
- MINOR: config: make tune.recv_enough configurable
- BUG/MEDIUM: config: properly adjust maxconn with nbproc when memmax is forced
- DOC: ssl: Adding docs for Multi-Cert bundling
- BUG/MEDIUM: peers: table entries learned from a remote are pushed to others after a random delay.
- BUG/MEDIUM: peers: old stick table updates could be repushed.
- MINOR: lua: service/applet can have access to the HTTP headers when a POST is received
- REORG/MINOR: lua: convert boolean "int" to bitfield
- BUG/MEDIUM: lua: Lua applets must not fetch samples using http_txn
- BUG/MINOR: lua: Lua applets must not use http_txn
- BUG/MEDIUM: lua: Forbid HTTP applets from being called from tcp rulesets
- BUG/MAJOR: lua: Do not force the HTTP analysers in use-services
- CLEANUP: lua: bad error messages
- CONTRIB: initiate a debugging suite to make debugging easier
When a POST is processed by a Lua service, the HTTP header are
potentially gone. So, we cannot retrieve their content using
the standard "hdr" sample fetchs (which will soon become invalid
anyway) from an applet.
This patch add an entry "headers" to the object applet_http. This
entry is an array containing all the headers. It permits to use the
HTTP headers during the processing of the service.
Many thanks to Jan Bruder for reporting this issue with enough
details to reproduce it.
This patch will have to be backported to 1.6 since it will be the
only way to access headers from Lua applets.
When memmax is forced using "-m", the per-process memory limit is enforced
using setrlimit(), but this value is not used to compute the automatic
maxconn limit. In addition, the per-process memory limit didn't consider
the fact that the shared SSL cache only needs to be accounted once.
The doc was also fixed to clearly state that "-m" is global and not per
process. It makes sense because people who use -m want to protect the
system's resources regardless of whatever appears in the configuration.
This setting used to be assigned to a variable tunable from a constant
and for an unknown reason never made its way into the config parser.
tune.recv_enough <number>
Haproxy uses some hints to detect that a short read indicates the end of the
socket buffers. One of them is that a read returns more than <recv_enough>
bytes, which defaults to 10136 (7 segments of 1448 each). This default value
may be changed by this setting to better deal with workloads involving lots
of short messages such as telnet or SSH sessions.
add referrence for "http-request" or "http-response" in reqXXX/rspXXX
directives.
add a paragraph in "http-request" and "http-response" stating that
reqXXX/rspXXX directives are discouraged
The documentation missed the explanation and relation between the
timeout http-request and option http-buffer-request.
Combined together, it helps protecting against slow POST types of
attacks.
[wt: backport to 1.6]
It is possible to create a http capture rule which points to a capture slot
id which does not exist.
Current patch prevent this when parsing configuration and prevent running
configuration which contains such rules.
This configuration is now invalid:
frontend f
bind :8080
http-request capture req.hdr(User-Agent) id 0
default_backend b
this one as well:
frontend f
bind :8080
declare capture request len 32 # implicit id is 0 here
http-request capture req.hdr(User-Agent) id 1
default_backend b
It applies of course to both http-request and http-response rules.
Causes HAProxy to emit a static string to the agent on every check,
so that you can independently control multiple services running
behind a single agent port.
This commit adds support for setting a per-server maxconn from the stats
socket. The only really notable part of this commit is that we need to
check if maxconn == minconn before changing things, as this indicates
that we are NOT using dynamic maxconn. When we are not using dynamic
maxconn, we should update maxconn/minconn in lockstep.
It was reported that an example was manipulating a "Referrer" header instead
of the known "Referer" one. Even if it's an example wich doesn't break things,
the typo can be fixed.
The fix should be backported in 1.4/1.5/1.6 branches.
Commit 44aed90ce1 moved the stats socket
documentation from config to management but the remaining references to
section 9.2 were not updated; improve it to be less confusing.
Signed-off-by: Kevin Decherf <kevin@kdecherf.com>
Released version 1.6.0 with the following main changes :
- BUG/MINOR: Handle interactive mode in cli handler
- DOC: global section missing parameters
- DOC: backend section missing parameters
- DOC: stats paramaters available in frontend
- MINOR: lru: do not allocate useless memory in lru64_lookup
- BUG/MINOR: http: Add OPTIONS in supported http methods (found by find_http_meth)
- BUG/MINOR: ssl: fix management of the cache where forged certificates are stored
- MINOR: ssl: Release Servers SSL context when HAProxy is shut down
- MINOR: ssl: Read the file used to generate certificates in any order
- MINOR: ssl: Add support for EC for the CA used to sign generated certificates
- MINOR: ssl: Add callbacks to set DH/ECDH params for generated certificates
- BUG/MEDIUM: logs: fix time zone offset format in RFC5424
- BUILD: Fix the build on OSX (htonll/ntohll)
- BUILD: enable build on Linux/s390x
- BUG/MEDIUM: lua: direction test failed
- MINOR: lua: fix a spelling error in some error messages
- CLEANUP: cli: ensure we can never double-free error messages
- BUG/MEDIUM: lua: force server-close mode on Lua services
- MEDIUM: init: support more command line arguments after pid list
- MEDIUM: init: support a list of files on the command line
- MINOR: debug: enable memory poisonning to use byte 0
- BUILD: ssl: fix build error introduced by recent commit
- BUG/MINOR: config: make the stats socket pass the correct proxy to the parsers
- MEDIUM: server: implement TCP_USER_TIMEOUT on the server
- DOC: mention the "namespace" options for bind and server lines
- DOC: add the "management" documentation
- DOC: move the stats socket documentation from config to management
- MINOR: examples: update haproxy.spec to mention new docs
- DOC: mention management.txt in README
- DOC: remove haproxy-{en,fr}.txt
- BUILD: properly report when USE_ZLIB and USE_SLZ are used together
- MINOR: init: report use of libslz instead of "no compression"
- CLEANUP: examples: remove some obsolete and confusing files
- CLEANUP: examples: remove obsolete configuration file samples
- CLEANUP: examples: fix the example file content-sw-sample.cfg
- CLEANUP: examples: update sample file option-http_proxy.cfg
- CLEANUP: examples: update sample file ssl.cfg
- CLEANUP: tests: move a test file from examples/ to tests/
- CLEANUP: examples: shut up warnings in transparent proxy example
- CLEANUP: tests: removed completely obsolete test files
- DOC: update ROADMAP to remove what was done in 1.6
- BUG/MEDIUM: pattern: fixup use_after_free in the pat_ref_delete_by_id
This doc explains how to start/stop haproxy, what signals are used
and a few debugging tricks. It's far from being complete but should
already help a number of users.
The stats part will be taken from the config doc.
This is equivalent to commit 2af207a ("MEDIUM: tcp: implement tcp-ut
bind option to set TCP_USER_TIMEOUT") except that this time it works
on the server side. The purpose is to detect dead server connections
even when checks are rare, disabled, or after a soft reload (since
checks are disabled there as well), and to ensure client connections
will get killed faster.
Released version 1.6-dev7 with the following main changes :
- MINOR: cli: Dump all resolvers stats if no resolver section is given
- BUG: config: external-check command validation is checking for incorrect arguments.
- DOC: documentation format cleanups
- DOC: lua: few typos.
- BUG/MEDIUM: str2ip: make getaddrinfo() consider local address selection policy
- BUG/MEDIUM: logs: segfault writing to log from Lua
- DOC: fix lua use-service example
- MINOR: payload: add support for tls session ticket ext
- MINOR: lua: remove the run flag
- MEDIUM: lua: change the timeout execution
- MINOR: lua: rename the tune.lua.applet-timeout
- DOC: lua: update Lua doc
- DOC: lua: update doc according with the last Lua changes
- MINOR: http/tcp: fill the avalaible actions
- DOC: reorder misplaced res.ssl_hello_type in the doc
- BUG/MINOR: tcp: make silent-drop always force a TCP reset
- CLEANUP: tcp: silent-drop: only drain the connection when quick-ack is disabled
- BUILD: tcp: use IPPROTO_IP when SOL_IP is not available
- BUILD: server: fix build warnings introduced by load-server-state
- BUG/MEDIUM: server: fix misuse of format string in load-server-state's warnings
This commit adds support for dumping all resolver stats. Specifically
if a command 'show stats resolvers' is issued withOUT a resolver section
id, we dump all known resolver sections. If none are configured, a
message is displayed indicating that.
req.ssl_st_ext : integer
Returns 0 if the client didn't send a SessionTicket TLS Extension (RFC5077)
Returns 1 if the client sent SessionTicket TLS Extension
Returns 2 if the client also sent non-zero length TLS SessionTicket
Chapter "Mailers" was missing from the summary, tabulations were used and
several lines exceeded 80 columns : some lines still exceeds the 80 columns
limit but are left as is, as it mostly concerns syntax and configuration
examples.
Released version 1.6-dev6 with the following main changes :
- BUG/MAJOR: can't enable a server through the stat socket
- MINOR: server: Macro definition for server-state
- MINOR: cli: new stats socket command: show servers state
- DOC: stats socket command: show servers state
- MINOR: config: new global directive server-state-base
- DOC: global directive server-state-base
- MINOR: config: new global section directive: server-state-file
- DOC: new global directive: server-state-file
- MINOR: config: new backend directives: load-server-state-from-file and server-state-file-name
- DOC: load-server-state-from-file
- MINOR: init: server state loaded from file
- MINOR: server: startup slowstart task when using seamless reload of HAProxy
- MINOR: cli: new stats socket command: show backend
- DOC: servers state seamless reload example
- BUG: dns: can't connect UDP socket on FreeBSD
- MINOR: cfgparse: New function cfg_unregister_sections()
- MINOR: chunk: New function free_trash_buffers()
- BUG/MEDIUM: main: Freeing a bunch of static pointers
- MINOR: proto_http: Externalisation of previously internal functions
- MINOR: global: Few new struct fields for da module
- MAJOR: da: Update of the DeviceAtlas API module
- DOC: DeviceAtlas new keywords
- DOC: README: DeviceAtlas sample configuration updates
- MEDIUM: log: replace sendto() with sendmsg() in __send_log()
- MEDIUM: log: use a separate buffer for the header and for the message
- MEDIUM: logs: remove the hostname, tag and pid part from the logheader
- MEDIUM: logs: add support for RFC5424 header format per logger
- MEDIUM: logs: add a new RFC5424 log-format for the structured-data
- DOC: mention support for the RFC5424 syslog message format
- MEDIUM: logs: have global.log_send_hostname not contain the trailing space
- MEDIUM: logs: pass the trailing "\n" as an iovec
- BUG/MEDIUM: peers: some table updates are randomly not pushed.
- BUG/MEDIUM: peers: same table updates re-pushed after a re-connect
- BUG/MINOR: fct peer_prepare_ackmsg should not use trash.
- MINOR: http: made CHECK_HTTP_MESSAGE_FIRST accessible to other functions
- MINOR: global: Added new fields for 51Degrees device detection
- DOC: Added more explanation for 51Degrees V3.2
- BUILD: Changed 51Degrees option to support V3.2
- MAJOR: 51d: Upgraded to support 51Degrees V3.2 and new features
- MINOR: 51d: Improved string handling for LRU cache
- DOC: add references to rise/fall for the fastinter explanation
- MINOR: support cpu-map feature through the compile option USE_CPU_AFFINITY on FreeBSD
- BUG/MAJOR: lua: potential unexpected aborts()
- BUG/MINOR: lua: breaks the log message if his size exceed one buffer
- MINOR: action: add private configuration
- MINOR: action: add reference to the original keywork matched for the called parser.
- MINOR: lua: change actions registration
- MEDIUM: proto_http: smp_prefetch_http initialize txn
- MINOR: channel: rename function chn_sess to chn_strm
- CLEANUP: lua: align defines
- MINOR: http: export http_get_path() function
- MINOR: http: export the get_reason() function
- MINOR: http: export function http_msg_analyzer()
- MINOR: http: split initialization
- MINOR: lua: reset pointer after use
- MINOR: lua: identify userdata objects
- MEDIUM: lua: use the function lua_rawset in place of lua_settable
- BUG/MAJOR: lua: segfault after the channel data is modified by some Lua action.
- CLEANUP: lua: use calloc in place of malloc
- BUG/MEDIUM: lua: longjmp function must be unregistered
- BUG/MEDIUM: lua: forces a garbage collection
- BUG/MEDIUM: lua: wakeup task on bad conditions
- MINOR: standard: avoid DNS resolution from the function str2sa_range()
- MINOR: lua: extend socket address to support non-IP families
- MINOR: lua/applet: the cosocket applet should use appctx_wakeup in place of task_wakeup
- BUG/MEDIUM: lua: socket destroy before reading pending data
- MEDIUM: lua: change the GC policy
- OPTIM/MEDIUM: lua: executes the garbage collector only when using cosocket
- BUG/MEDIUM: lua: don't reset undesired flags in hlua_ctx_resume
- MINOR: applet: add init function
- MINOR: applet: add an execution timeout
- MINOR: stream/applet: add use-service action
- MINOR: lua: add AppletTCP class and service
- MINOR: lua: add AppletHTTP class and service
- DOC: lua: some documentation update
- DOC: add the documentation about internal circular lists
- DOC: add a CONTRIBUTING file
- DOC: add a MAINTAINERS file
- BUG/MAJOR: peers: fix a crash when stopping peers on unbound processes
- DOC: update coding-style to reference checkpatch.pl
- BUG/MEDIUM: stick-tables: fix double-decrement of tracked entries
- BUG/MINOR: args: add name for ARGT_VAR
- DOC: add more entries to MAINTAINERS
- DOC: add more entries to MAINTAINERS
- CLEANUP: stream-int: remove obsolete function si_applet_call()
- BUG/MAJOR: cli: do not dereference strm_li()->proto->name
- BUG/MEDIUM: http: do not dereference strm_li(stream)
- BUG/MEDIUM: proxy: do not dereference strm_li(stream)
- BUG/MEDIUM: stream: do not dereference strm_li(stream)
- MINOR: stream-int: use si_release_endpoint() to close idle conns
- BUG/MEDIUM: payload: make req.payload and payload_lv aware of dynamic buffers
- BUG/MEDIUM: acl: always accept match "found"
- MINOR: applet: rename applet_runq to applet_active_queue
- BUG/MAJOR: applet: use a separate run queue to maintain list integrity
- MEDIUM: stream-int: split stream_int_update_conn() into si- and conn-specific parts
- MINOR: stream-int: implement a new stream_int_update() function
- MEDIUM: stream-int: factor out the stream update functions
- MEDIUM: stream-int: call stream_int_update() from si_update()
- MINOR: stream-int: export stream_int_update_*
- MINOR: stream-int: move the applet_pause call out of the stream updates
- MEDIUM: stream-int: clean up the conditions to enable reading in si_conn_wake_cb
- MINOR: stream-int: implement the stream_int_notify() function
- MEDIUM: stream-int: use the same stream notification function for applets and conns
- MEDIUM: stream-int: completely remove stream_int_update_embedded()
- MINOR: stream-int: rename si_applet_done() to si_applet_wake_cb()
- BUG/MEDIUM: applet: fix reporting of broken write situation
- BUG/MINOR: stats: do not call cli_release_handler 3 times
- BUG/MEDIUM: cli: properly handle closed output
- MINOR: cli: do not call the release handler on internal error.
- BUG/MEDIUM: stream-int: avoid double-call to applet->release
- DEBUG: add p_malloc() to return a poisonned memory area
- CLEANUP: lua: remove unneeded memset(0) after calloc()
- MINOR: lua: use the proper applet wakeup mechanism
- BUG/MEDIUM: lua: better fix for the protocol check
- BUG/MEDIUM: lua: properly set the target on the connection
- MEDIUM: actions: pass a new "flags" argument to custom actions
- MEDIUM: actions: add new flag ACT_FLAG_FINAL to notify about last call
- MEDIUM: http: pass ACT_FLAG_FINAL to custom actions
- MEDIUM: lua: only allow actions to yield if not in a final call
- DOC: clarify how to make use of abstract sockets in socat
- CLEANUP: config: make the errorloc/errorfile messages less confusing
- MEDIUM: action: add a new flag ACT_FLAG_FIRST
- BUG/MINOR: config: check that tune.bufsize is always positive
- MEDIUM: config: set tune.maxrewrite to 1024 by default
- DOC: add David Carlier as maintainer of da.c
- DOC: fix some broken unexpected unicode chars in the Lua doc.
- BUG/MEDIUM: proxy: ignore stopped peers
- BUG/MEDIUM: proxy: do not wake stopped proxies' tasks during soft_stop()
- MEDIUM: init: completely deallocate unused peers
- BUG/MEDIUM: tcp: fix inverted condition to call custom actions
- DOC: remove outdated actions lists on tcp-request/response
- MEDIUM: tcp: add new tcp action "silent-drop"
- DOC: add URLs to optional libraries in the README
This stops the evaluation of the rules and makes the client-facing
connection suddenly disappear using a system-dependant way that tries
to prevent the client from being notified. The effect it then that the
client still sees an established connection while there's none on
HAProxy. The purpose is to achieve a comparable effect to "tarpit"
except that it doesn't use any local resource at all on the machine
running HAProxy. It can resist much higher loads than "tarpit", and
slow down stronger attackers. It is important to undestand the impact
of using this mechanism. All stateful equipments placed between the
client and HAProxy (firewalls, proxies, load balancers) will also keep
the established connection for a long time and may suffer from this
action. On modern Linux systems running with enough privileges, the
TCP_REPAIR socket option is used to block the emission of a TCP
reset. On other systems, the socket's TTL is reduced to 1 so that the
TCP reset doesn't pass the first router, though it's still delivered to
local networks.
The current Lua action are not registered. The executed function is
selected according with a function name writed in the HAProxy configuration.
This patch add an action registration function. The configuration mode
described above disappear.
This change make some incompatibilities with existing configuration files for
HAProxy 1.6-dev.
Running the Linux kernel's checkpatch.pl is actually quite efficient
at spotting style issues and even sometimes bugs. The doc now suggests
how to use it to avoid the warnings that are specific to Linux's stricter
rules.
It properly reports errors like the following ones that were found on
real submissions so it should improve the situation for everyone :
ERROR: "foo * bar" should be "foo *bar"
+static char * tcpcheck_get_step_comment(struct check *, int);
ERROR: do not use assignment in if condition
+ if ((comment = tcpcheck_get_step_comment(check, step)))
WARNING: trailing semicolon indicates no statements, indent implies otherwise
+ if (elem->data && elem->free);
+ elem->free(elem->data);
ERROR: do not initialise statics to 0 or NULL
+static struct lru64_head *ssl_ctx_lru_tree = NULL;
ERROR: space required after that ',' (ctx:VxV)
+ !X509_gmtime_adj(X509_get_notAfter(newcrt),(long)60*60*24*365))
^
WARNING: space prohibited between function name and open parenthesis '('
+ else if (EVP_PKEY_type (capkey->type) == EVP_PKEY_RSA)
ERROR: trailing statements should be on next line
+ if (cacert) X509_free(cacert);
ERROR: space prohibited after that open parenthesis '('
+ !( (srv_op_state == SRV_ST_STOPPED)
This file was recovered from the first project where it was born 12 years
ago, but it's still convenient to understand how our circular lists work,
so let's add it.
Documentation related to a new global directive.
Purpose of this directive is to store a file path into the global
structure of HAProxy. The file pointed by the path may be used by
HAProxy to retrieve server state from the previous running process
after a reload occured.
Released version 1.6-dev5 with the following main changes :
- MINOR: dns: dns_resolution structure update: time_t to unsigned int
- BUG/MEDIUM: dns: DNS resolution doesn't start
- BUG/MAJOR: dns: dns client resolution infinite loop
- MINOR: dns: coding style update
- MINOR: dns: new bitmasks to use against DNS flags
- MINOR: dns: dns_nameserver structure update: new counter for truncated response
- MINOR: dns: New DNS response analysis code: DNS_RESP_TRUNCATED
- MEDIUM: dns: handling of truncated response
- MINOR: DNS client query type failover management
- MINOR: dns: no expected DNS record type found
- MINOR: dns: new flag to report that no IP can be found in a DNS response packet
- BUG/MINOR: DNS request retry counter used for retry only
- DOC: DNS documentation updated
- MEDIUM: actions: remove ACTION_STOP
- BUG/MEDIUM: lua: outgoing connection was broken since 1.6-dev2 (bis)
- BUG/MINOR: lua: last log character truncated.
- CLEANUP: typo: bad indent
- CLEANUP: actions: missplaced includes
- MINOR: build: missing header
- CLEANUP: lua: Merge log functions
- BUG/MAJOR: http: don't manipulate the server connection if it's killed
- BUG/MINOR: http: remove stupid HTTP_METH_NONE entry
- BUG/MAJOR: http: don't call http_send_name_header() after an error
- MEDIUM: tools: make str2sa_range() optionally return the FQDN
- BUG/MINOR: tools: make str2sa_range() report unresolvable addresses
- BUG/MEDIUM: dns: use the correct server hostname when resolving
More information regarding DNS resolution:
- behavior in case of errors
- behavior when multiple name servers are configured in a resolvers
section
- when a retry is performed
- when a query type change is performed
- make it clear that DNS resolution requires health checking enabled
on the server
Released version 1.6-dev4 with the following main changes :
- MINOR: log: Add log-format variable %HQ, to log HTTP query strings
- DOC: typo in 'redirect', 302 code meaning
- DOC: typos in tcp-check expect examples
- DOC: resolve-prefer default value and default-server update
- MINOR: DNS counters: increment valid counter
- BUG/MEDIUM: DNS resolution response parsing broken
- MINOR: server: add new SRV_ADMF_CMAINT flag
- MINOR: server SRV_ADMF_CMAINT flag doesn't imply SRV_ADMF_FMAINT
- BUG/MEDIUM: dns: wrong first time DNS resolution
- BUG/MEDIUM: lua: Lua tasks fail to start.
- BUILD: add USE_LUA to BUILD_OPTIONS when it's used
- DOC/MINOR: fix OpenBSD versions where haproxy works
- MINOR: 51d: unable to start haproxy without "51degrees-data-file"
- BUG/MEDIUM: peers: fix wrong message id on stick table updates acknowledgement.
- BUG/MAJOR: peers: fix current table pointer not re-initialized on session release.
- BUILD: ssl: Allow building against libssl without SSLv3.
- DOC: clarify some points about SSL and the proxy protocol
- DOC: mention support for RFC 5077 TLS Ticket extension in starter guide
- BUG/MEDIUM: mailer: DATA part must be terminated with <CRLF>.<CRLF>
- DOC: match several lua configuration option names to those implemented in code
- MINOR cfgparse: Correct the mailer warning text to show the right names to the user
- BUG/MINOR: ssl: TLS Ticket Key rotation broken via socket command
- MINOR: stream: initialize the current_rule field to NULL on stream init
- BUG/MEDIUM: lua: timeout error with converters, wrapper and actions.
- CLEANUP: proto_http: remove useless initialisation
- CLEANUP: http/tcp actions: remove the scope member
- BUG/MINOR: proto_tcp: custom action continue is ignored
- MINOR: proto_tcp: add session in the action prototype
- MINOR: vars: reduce the code size of some wrappers
- MINOR: Move http method enum from proto_http to sample
- MINOR: sample: Add ipv6 to ipv4 and sint to ipv6 casts
- MINOR: sample/proto_tcp: export "smp_fetch_src"
- MEDIUM: cli: rely on the map's output type instead of the sample type
- BUG/MEDIUM: stream: The stream doen't inherit SC from the session
- BUG/MEDIUM: vars: segfault during the configuration parsing
- BUG/MEDIUM: stick-tables: refcount error after copying SC for the session to the stream
- BUG/MEDIUM: lua: bad error processing
- MINOR: samples: rename a struct from sample_storage to sample_data
- MINOR: samples: rename some struct member from "smp" to "data"
- MEDIUM: samples: Use the "struct sample_data" in the "struct sample"
- MINOR: samples: extract the anonymous union and create the union sample_value
- MINOR: samples: rename union from "data" to "u"
- MEDIUM: 51degrees: Adapt the 51Degrees library
- MINOR: samples: data assignation simplification
- MEDIUM: pattern/map: Maps can returns various types
- MINOR: map: The map can return IPv4 and IPv6
- MEDIUM: actions: Merge (http|tcp)-(request|reponse) action structs
- MINOR: actions: Remove the data opaque pointer
- MINOR: lua: use the hlua_rule type in place of opaque type
- MINOR: vars: use the vars types as argument in place of opaque type
- MINOR: proto_http: use an "expr" type in place of generic opaque type.
- MINOR: proto_http: replace generic opaque types by real used types for the actions on thr request line
- MINOR: proto_http: replace generic opaque types by real used types in "http_capture"
- MINOR: proto_http: replace generic opaque types by real used types in "http_capture" by id
- MEDIUM: track-sc: Move the track-sc configuration storage in the union
- MEDIUM: capture: Move the capture configuration storage in the union
- MINOR: actions: add "from" information
- MINOR: actions: remove the mark indicating the last entry in enum
- MINOR: actions: Declare all the embedded actions in the same header file
- MINOR: actions: change actions names
- MEDIUM: actions: Add standard return code for the action API
- MEDIUM: actions: Merge (http|tcp)-(request|reponse) keywords structs
- MINOR: proto_tcp: proto_tcp.h is now useles
- MINOR: actions: mutualise the action keyword lookup
- MEDIUM: actions: Normalize the return code of the configuration parsers
- MINOR: actions: Remove wrappers
- MAJOR: stick-tables: use sample types in place of dedicated types
- MEDIUM: stick-tables: use the sample type names
- MAJOR: stick-tables: remove key storage from the key struct
- MEDIUM: stick-tables: Add GPT0 in the stick tables
- MINOR: stick-tables: Add GPT0 access
- MINOR: stick-tables: Add GPC0 actions
- BUG/MEDIUM: lua: the lua fucntion Channel:close() causes a segfault
- DOC: ssl: missing LF
- MINOR: lua: add core.done() function
- DOC: fix function name
- BUG/MINOR: lua: in some case a sample may remain undefined
- DOC: fix "http_action_set_req_line()" comments
- MINOR: http: Action for manipulating the returned status code.
- MEDIUM: lua: turns txn:close into txn:done
- BUG/MEDIUM: lua: cannot process more Lua hooks after a "done()" function call
- BUILD: link with libdl if needed for Lua support
- CLEANUP: backend: factor out objt_server() in connect_server()
- MEDIUM: backend: don't call si_alloc_conn() when we reuse a valid connection
- MEDIUM: stream-int: simplify si_alloc_conn()
- MINOR: stream-int: add new function si_detach_endpoint()
- MINOR: server: add a list of private idle connections
- MINOR: connection: add a new list member in the connection struct
- MEDIUM: stream-int: queue idle connections at the server
- MINOR: stream-int: make si_idle_conn() only accept valid connections
- MINOR: server: add a list of already used idle connections
- MINOR: connection: add a new flag CO_FL_PRIVATE
- MINOR: config: add new setting "http-reuse"
- MAJOR: backend: initial work towards connection reuse
- MAJOR: backend: improve the connection reuse mechanism
- MEDIUM: backend: implement "http-reuse safe"
- MINOR: server: add a list of safe, already reused idle connections
- MEDIUM: backend: add the "http-reuse aggressive" strategy
- DOC: document the new http-reuse directive
- DOC: internals: document next steps for HTTP connection reuse
- DOC: mention that %ms is left-padded with zeroes.
- MINOR: init: indicate to check 'bind' lines when no listeners were found.
- MAJOR: http: remove references to appsession
- CLEANUP: config: remove appsession initialization
- CLEANUP: appsession: remove appsession.c and sessionhash.c
- CLEANUP: tests: remove sessionhash_test.c and test-cookie-appsess.cfg
- CLEANUP: proxy: remove last references to appsession
- CLEANUP: appsession: remove the last include files
- DOC: remove documentation about appsession
- CLEANUP: .gitignore: ignore more test files
- CLEANUP: .gitignore: finally ignore everything but what is known.
- MEDIUM: config: emit a warning on a frontend without listener
- DOC: add doc/internals/entities-v2.txt
- DOC: add doc/linux-syn-cookies.txt
- DOC: add design thoughts on HTTP/2
- DOC: add some thoughts on connection sharing for HTTP/2
- DOC: add design thoughts on dynamic buffer allocation
- BUG/MEDIUM: counters: ensure that src_{inc,clr}_gpc0 creates a missing entry
- DOC: add new file intro.txt
- MAJOR: tproxy: remove support for cttproxy
- BUG/MEDIUM: lua: outgoing connection was broken since 1.6-dev2
- DOC: lua: replace txn:close with txn:done in lua-api
- DOC: intro: minor updates and fixes
- DOC: intro: fix too long line.
- DOC: fix example of http-request using ssl_fc_session_id
- BUG/MEDIUM: lua: txn:done() still causes a segfault in TCP mode
- CLEANUP: lua: fix some indent issues
- BUG/MEDIUM: lua: fix a segfault in txn:done() if called twice
- DOC: lua: mention than txn:close was renamed txn:done.
- temporarily remove reference to management.txt which doesn't exist yet
- minor update to the lb intro
- indicate that e-mails can be sent to notify about server state change
This patch is inspired by Bowen Ni's proposal and it is based on his first
implementation:
With Lua integration in HAProxy 1.6, one can change the request method,
path, uri, header, response header etc except response line.
I'd like to contribute the following methods to allow modification of the
response line.
[...]
There are two new keywords in 'http-response' that allows you to rewrite
them in the native HAProxy config. There are also two new APIs in Lua that
allows you to do the same rewriting in your Lua script.
Example:
Use it in HAProxy config:
*http-response set-code 404*
Or use it in Lua script:
*txn.http:res_set_reason("Redirect")*
I dont take the full patch because the manipulation of the "reason" is useless.
standard reason are associated with each returned code, and unknown code can
take generic reason.
So, this patch can set the status code, and the reason is automatically adapted.
This was the first transparent proxy technology supported by haproxy
circa 2005 but it was obsoleted in 2007 by Tproxy 4.0 which removed a
lot of the earlier versions' shortcomings and was finally merged into
the kernel. Since nobody has been using cttproxy for many years now
and nobody has even just tried to compile the files, it's time to
remove it. The doc was updated as well.
This is an introduction to present HAProxy. The aim is to get rid of the
totally obsolete haproxy-en and haproxy-fr files. This file references
another one which is not there yet and which should cover the remaining
part of these obsolete files, which is how to manage the process. The
format is the same as the other docs so it should integrate seamlessly
to existing docs.
Since sample fetches are not always available in the response phase,
this patch implements %HQ such that:
GET /foo?bar=baz HTTP/1.0
...would be logged as:
?bar=baz
By the code, resolve-prefer defaults to IPv6 and is also available in
the default-server directive.
These information were missing or wrong in the documentation.
Released version 1.6-dev3 with the following main changes :
- CLEANUP: sample: generalize sample_fetch_string() as sample_fetch_as_type()
- MEDIUM: http: Add new 'set-src' option to http-request
- DOC usesrc root privileges requirments
- BUG/MINOR: dns: wrong time unit for some DNS default parameters
- MINOR: proxy: bit field for proxy_find_best_match diff status
- MINOR: server: new server flag: SRV_F_FORCED_ID
- MINOR: server: server_find functions: id, name, best_match
- DOC: dns: fix chapters syntax
- BUILD/MINOR: tools: rename popcount to my_popcountl
- BUILD: add netbsd TARGET
- MEDIUM: 51Degrees code refactoring and cleanup
- MEDIUM: 51d: add LRU-based cache on User-Agent string detection
- DOC: add notes about the "51degrees-cache-size" parameter
- BUG/MEDIUM: 51d: possible incorrect operations on smp->data.str.str
- BUG/MAJOR: connection: fix TLV offset calculation for proxy protocol v2 parsing
- MINOR: Add sample fetch to detect Supported Elliptic Curves Extension
- BUG/MINOR: payload: Add volatile flag to smp_fetch_req_ssl_ec_ext
- BUG/MINOR: lua: type error in the arguments wrapper
- CLEANUP: vars: remove unused struct
- BUG/MINOR: http/sample: gmtime/localtime can fail
- MINOR: standard: add 64 bits conversion functions
- MAJOR: sample: converts uint and sint in 64 bits signed integer
- MAJOR: arg: converts uint and sint in sint
- MEDIUM: sample: switch to saturated arithmetic
- MINOR: vars: returns variable content
- MEDIUM: vars/sample: operators can use variables as parameter
- BUG/MINOR: ssl: fix smp_fetch_ssl_fc_session_id
- BUILD/MINOR: lua: fix a harmless build warning
- BUILD/MINOR: stats: fix build warning due to condition always true
- BUG/MAJOR: lru: fix unconditional call to free due to unexpected semi-colon
- BUG/MEDIUM: logs: fix improper systematic use of quotes with a few tags
- BUILD/MINOR: lua: ensure that hlua_ctx_destroy is properly defined
- BUG/MEDIUM: lru: fix possible memory leak when ->free() is used
- MINOR: vars: make the accounting not depend on the stream
- MEDIUM: vars: move the session variables to the session, not the stream
- BUG/MEDIUM: vars: do not freeze the connection when the expression cannot be fetched
- BUG/MAJOR: buffers: make the buffer_slow_realign() function respect output data
- BUG/MAJOR: tcp: tcp rulesets were still broken
- MINOR: stats: improve compression stats reporting
- MINOR: ssl: make self-generated certs also work with raw IPv6 addresses
- CLEANUP: ssl: make ssl_sock_generated_cert_serial() take a const
- CLEANUP: ssl: make ssl_sock_generate_certificate() use ssl_sock_generated_cert_serial()
- BUG/MINOR: log: missing some ARGC_* entries in fmt_directives()
- MINOR: args: add new context for servers
- MINOR: stream: maintain consistence between channel_forward and HTTP forward
- MINOR: ssl: provide ia function to set the SNI extension on a connection
- MEDIUM: ssl: add sni support on the server lines
- CLEANUP: stream: remove a useless call to si_detach()
- CLEANUP: stream-int: fix a few outdated comments about stream_int_register_handler()
- CLEANUP: stream-int: remove stream_int_unregister_handler() and si_detach()
- MINOR: stream-int: only use si_release_endpoint() to release a connection
- MINOR: standard: provide htonll() and ntohll()
- CLEANUP/MINOR: dns: dns_str_to_dn_label() only needs a const char
- BUG/MAJOR: dns: fix the length of the string to be copied
This patch allow the existing operators to take a variable as parameter.
This is useful to add the content of two variables. This patch modify
the behavior of operators.
This patch check calculus for overflow and returns capped values.
This permits to protect against integer overflow in certain operations
involving ratios, percentages, limits or anything. That can sometimes
be critically important with some operations (eg: content-length < X).
This patch removes the 32 bits unsigned integer and the 32 bit signed
integer. It replaces these types by a unique type 64 bit signed.
This makes easy the usage of integer and clarify signed and unsigned use.
With the previous version, signed and unsigned are used ones in place of
others, and sometimes the converter loose the sign. For example, divisions
are processed with "unsigned", if one entry is negative, the result is
wrong.
Note that the integer pattern matching and dotted version pattern matching
are already working with signed 64 bits integer values.
There is one user-visible change : the "uint()" and "sint()" sample fetch
functions which used to return a constant integer have been replaced with
a new more natural, unified "int()" function. These functions were only
introduced in the latest 1.6-dev2 so there's no impact on regular
deployments.
The new "sni" server directive takes a sample fetch expression and
uses its return value as a hostname sent as the TLS SNI extension.
A typical use case consists in forwarding the front connection's SNI
value to the server in a bridged HTTPS forwarder :
sni ssl_fc_sni
Clients that support ECC cipher suites SHOULD send the specified extension
within the SSL ClientHello message according to RFC4492, section 5.1. We
can use this extension to chain-proxy requests so that, on the same IP
address, a ECC compatible clients gets an EC certificate and a non-ECC
compatible client gets a regular RSA certificate. The main advantage of this
approach compared to the one presented by Dave Zhu on the mailing list
is that we can make it work with OpenSSL versions before 1.0.2.
Example:
frontend ssl-relay
mode tcp
bind 0.0.0.0:443
use_backend ssl-ecc if { req.ssl_ec_ext 1 }
default_backend ssl-rsa
backend ssl-ecc
mode tcp
server ecc unix@/var/run/haproxy_ssl_ecc.sock send-proxy-v2 check
backend ssl-rsa
mode tcp
server rsa unix@/var/run/haproxy_ssl_rsa.sock send-proxy-v2 check
listen all-ssl
bind unix@/var/run/haproxy_ssl_ecc.sock accept-proxy ssl crt /usr/local/haproxy/ecc.foo.com.pem user nobody
bind unix@/var/run/haproxy_ssl_rsa.sock accept-proxy ssl crt /usr/local/haproxy/www.foo.com.pem user nobody
Signed-off-by: Nenad Merdanovic <nmerdan@anine.io>
This option enables overriding source IP address in a HTTP request. It is
useful when we want to set custom source IP (e.g. front proxy rewrites address,
but provides the correct one in headers) or we wan't to mask source IP address
for privacy or compliance.
It acts on any expression which produces correct IP address.
All chapters in the configuration documentation used to follow this syntax :
<chapter number>. <title>
-------------------------
The new chapters introduced to document the dns resolution didn't provide the
dot character after the chapter number, which breaks the parsing for the HTML
converter. Instead of adding new conditions in the converter, we can align the
chapters with this syntax.
Moved 51Degrees code from src/haproxy.c, src/sample.c and src/cfgparse.c
into a separate files src/51d.c and include/import/51d.h.
Added two new functions init_51degrees() and deinit_51degrees(), updated
Makefile and other code reorganizations related to 51Degrees.
Released version 1.6-dev2 with the following main changes :
- BUG/MINOR: ssl: Display correct filename in error message
- MEDIUM: logs: Add HTTP request-line log format directives
- BUG/MEDIUM: check: tcpcheck regression introduced by e16c1b3f
- BUG/MINOR: check: fix tcpcheck error message
- MINOR: use an int instead of calling tcpcheck_get_step_id
- MINOR: tcpcheck_rule structure update
- MINOR: include comment in tcpcheck error log
- DOC: tcpcheck comment documentation
- MEDIUM: server: add support for changing a server's address
- MEDIUM: server: change server ip address from stats socket
- MEDIUM: protocol: add minimalist UDP protocol client
- MEDIUM: dns: implement a DNS resolver
- MAJOR: server: add DNS-based server name resolution
- DOC: server name resolution + proto DNS
- MINOR: dns: add DNS statistics
- MEDIUM: http: configurable http result codes for http-request deny
- BUILD: Compile clean when debug options defined
- MINOR: lru: Add the possibility to free data when an item is removed
- MINOR: lru: Add lru64_lookup function
- MEDIUM: ssl: Add options to forge SSL certificates
- MINOR: ssl: Export functions to manipulate generated certificates
- MEDIUM: config: add DeviceAtlas global keywords
- MEDIUM: global: add the DeviceAtlas required elements to struct global
- MEDIUM: sample: add the da-csv converter
- MEDIUM: init: DeviceAtlas initialization
- BUILD: Makefile: add options to build with DeviceAtlas
- DOC: README: explain how to build with DeviceAtlas
- BUG/MEDIUM: http: fix the url_param fetch
- BUG/MEDIUM: init: segfault if global._51d_property_names is not initialized
- MAJOR: peers: peers protocol version 2.0
- MINOR: peers: avoid re-scheduling of pending stick-table's updates still not pushed.
- MEDIUM: peers: re-schedule stick-table's entry for sync when data is modified.
- MEDIUM: peers: support of any stick-table data-types for sync
- BUG/MAJOR: sample: regression on sample cast to stick table types.
- CLEANUP: deinit: remove codes for cleaning p->block_rules
- DOC: Fix L4TOUT typo in documentation
- DOC: set-log-level in Logging section preamble
- BUG/MEDIUM: compat: fix segfault on FreeBSD
- MEDIUM: check: include server address and port in the send-state header
- MEDIUM: backend: Allow redispatch on retry intervals
- MINOR: Add TLS ticket keys reference and use it in the listener struct
- MEDIUM: Add support for updating TLS ticket keys via socket
- DOC: Document new socket commands "show tls-keys" and "set ssl tls-key"
- MINOR: Add sample fetch which identifies if the SSL session has been resumed
- DOC: Update doc about weight, act and bck fields in the statistics
- BUG/MEDIUM: ssl: fix tune.ssl.default-dh-param value being overwritten
- MINOR: ssl: add a destructor to free allocated SSL ressources
- MEDIUM: ssl: add the possibility to use a global DH parameters file
- MEDIUM: ssl: replace standards DH groups with custom ones
- MEDIUM: stats: Add enum srv_stats_state
- MEDIUM: stats: Separate server state and colour in stats
- MEDIUM: stats: Only report drain state in stats if server has SRV_ADMF_DRAIN set
- MEDIUM: stats: Differentiate between DRAIN and DRAIN (agent)
- MEDIUM: Lower priority of email alerts for log-health-checks messages
- MEDIUM: Send email alerts when servers are marked as UP or enter the drain state
- MEDIUM: Document when email-alerts are sent
- BUG/MEDIUM: lua: bad argument number in analyser and in error message
- MEDIUM: lua: automatically converts strings in proxy, tables, server and ip
- BUG/MINOR: utf8: remove compilator warning
- MEDIUM: map: uses HAProxy facilities to store default value
- BUG/MINOR: lua: error in detection of mandatory arguments
- BUG/MINOR: lua: set current proxy as default value if it is possible
- BUG/MEDIUM: http: the action set-{method|path|query|uri} doesn't run.
- BUG/MEDIUM: lua: undetected infinite loop
- BUG/MAJOR: http: don't read past buffer's end in http_replace_value
- BUG/MEDIUM: http: the function "(req|res)-replace-value" doesn't respect the HTTP syntax
- MEDIUM/CLEANUP: http: rewrite and lighten http_transform_header() prototype
- BUILD: lua: it miss the '-ldl' directive
- MEDIUM: http: allows 'R' and 'S' in the protocol alphabet
- MINOR: http: split the function http_action_set_req_line() in two parts
- MINOR: http: split http_transform_header() function in two parts.
- MINOR: http: export function inet_set_tos()
- MINOR: lua: txn: add function set_(loglevel|tos|mark)
- MINOR: lua: create and register HTTP class
- DOC: lua: fix some typos
- MINOR: lua: add log functions
- BUG/MINOR: lua: Fix SSL initialisation
- DOC: lua: some fixes
- MINOR: lua: (req|res)_get_headers return more than one header value
- MINOR: lua: map system integration in Lua
- BUG/MEDIUM: http: functions set-{path,query,method,uri} breaks the HTTP parser
- MINOR: sample: add url_dec converter
- MEDIUM: sample: fill the struct sample with the session, proxy and stream pointers
- MEDIUM: sample change the prototype of sample-fetches and converters functions
- MINOR: sample: fill the struct sample with the options.
- MEDIUM: sample: change the prototype of sample-fetches functions
- MINOR: http: split the url_param in two parts
- CLEANUP: http: bad indentation
- MINOR: http: add body_param fetch
- MEDIUM: http: url-encoded parsing function can run throught wrapped buffer
- DOC: http: req.body_param documentation
- MINOR: proxy: custom capture declaration
- MINOR: capture: add two "capture" converters
- MEDIUM: capture: Allow capture with slot identifier
- MINOR: http: add array of generic pointers in http_res_rules
- MEDIUM: capture: adds http-response capture
- MINOR: common: escape CSV strings
- MEDIUM: stats: escape some strings in the CSV dump
- MINOR: tcp: add custom actions that can continue tcp-(request|response) processing
- MINOR: lua: Lua tcp action are not final action
- DOC: lua: schematics about lua socket organization
- BUG/MINOR: debug: display (null) in place of "meth"
- DOC: mention the "lua action" in documentation
- MINOR: standard: add function that converts signed int to a string
- BUG/MINOR: sample: wrong conversion of signed values
- MEDIUM: sample: Add type any
- MINOR: debug: add a special converter which display its input sample content.
- MINOR: tcp: increase the opaque data array
- MINOR: tcp/http/conf: extends the keyword registration options
- MINOR: build: fix build dependency
- MEDIUM: vars: adds support of variables
- MINOR: vars: adds get and set functions
- MINOR: lua: Variable access
- MINOR: samples: add samples which returns constants
- BUG/MINOR: vars/compil: fix some warnings
- BUILD: add 51degrees options to makefile.
- MINOR: global: add several 51Degrees members to global
- MINOR: config: add 51Degrees config parsing.
- MINOR: init: add 51Degrees initialisation code
- MEDIUM: sample: add fiftyone_degrees converter.
- MEDIUM: deinit: add cleanup for 51Degrees to deinit
- MEDIUM: sample: add trie support to 51Degrees
- DOC: add 51Degrees notes to configuration.txt.
- DOC: add build indications for 51Degrees to README.
- MEDIUM: cfgparse: introduce weak and strong quoting
- BUG/MEDIUM: cfgparse: incorrect memmove in quotes management
- MINOR: cfgparse: remove line size limitation
- MEDIUM: cfgparse: expand environment variables
- BUG/MINOR: cfgparse: fix typo in 'option httplog' error message
- BUG/MEDIUM: cfgparse: segfault when userlist is misused
- CLEANUP: cfgparse: remove reference to 'ruleset' section
- MEDIUM: cfgparse: check section maximum number of arguments
- MEDIUM: cfgparse: max arguments check in the global section
- MEDIUM: cfgparse: check max arguments in the proxies sections
- CLEANUP: stream-int: remove a redundant clearing of the linger_risk flag
- MINOR: connection: make conn_sock_shutw() actually perform the shutdown() call
- MINOR: stream-int: use conn_sock_shutw() to shutdown a connection
- MINOR: connection: perform the call to xprt->shutw() in conn_data_shutw()
- MEDIUM: stream-int: replace xprt->shutw calls with conn_data_shutw()
- MINOR: checks: use conn_data_shutw_hard() instead of call via xprt
- MINOR: connection: implement conn_sock_send()
- MEDIUM: stream-int: make conn_si_send_proxy() use conn_sock_send()
- MEDIUM: connection: make conn_drain() perform more controls
- REORG: connection: move conn_drain() to connection.c and rename it
- CLEANUP: stream-int: remove inclusion of fd.h that is not used anymore
- MEDIUM: channel: don't always set CF_WAKE_WRITE on bi_put*
- CLEANUP: lua: don't use si_ic/si_oc on known stream-ints
- BUG/MEDIUM: peers: correctly configure the client timeout
- MINOR: peers: centralize configuration of the peers frontend
- MINOR: proxy: store the default target into the frontend's configuration
- MEDIUM: stats: use frontend_accept() as the accept function
- MEDIUM: peers: use frontend_accept() instead of peer_accept()
- CLEANUP: listeners: remove unused timeout
- MEDIUM: listener: store the default target per listener
- BUILD: fix automatic inclusion of libdl.
- MEDIUM: lua: implement a simple memory allocator
- MEDIUM: compression: postpone buffer adjustments after compression
- MEDIUM: compression: don't send leading zeroes with chunk size
- BUG/MINOR: compression: consider the expansion factor in init
- MINOR: http: check the algo name "identity" instead of the function pointer
- CLEANUP: compression: statify all algo-specific functions
- MEDIUM: compression: add a distinction between UA- and config- algorithms
- MEDIUM: compression: add new "raw-deflate" compression algorithm
- MEDIUM: compression: split deflate_flush() into flush and finish
- CLEANUP: compression: remove unused reset functions
- MAJOR: compression: integrate support for libslz
- BUG/MEDIUM: http: hdr_cnt would not count any header when called without name
- BUG/MAJOR: http: null-terminate the http actions keywords list
- CLEANUP: lua: remove the unused hlua_sleep memory pool
- BUG/MAJOR: lua: use correct object size when initializing a new converter
- CLEANUP: lua: remove hard-coded sizeof() in object creations and mallocs
- CLEANUP: lua: fix confusing local variable naming in hlua_txn_new()
- CLEANUP: hlua: stop using variable name "s" alternately for hlua_txn and hlua_smp
- CLEANUP: lua: get rid of the last "*ht" for struct hlua_txn.
- CLEANUP: lua: rename last occurrences of "*s" to "*htxn" for hlua_txn
- CLEANUP: lua: rename variable "sc" for struct hlua_smp
- CLEANUP: lua: get rid of the last two "*hs" for hlua_smp
- REORG/MAJOR: session: rename the "session" entity to "stream"
- REORG/MEDIUM: stream: rename stream flags from SN_* to SF_*
- MINOR: session: start to reintroduce struct session
- MEDIUM: stream: allocate the session when a stream is created
- MEDIUM: stream: move the listener's pointer to the session
- MEDIUM: stream: move the frontend's pointer to the session
- MINOR: session: add a pointer to the session's origin
- MEDIUM: session: use the pointer to the origin instead of s->si[0].end
- CLEANUP: sample: remove useless tests in fetch functions for l4 != NULL
- MEDIUM: http: move header captures from http_txn to struct stream
- MINOR: http: create a dedicated pool for http_txn
- MAJOR: http: move http_txn out of struct stream
- MAJOR: sample: don't pass l7 anymore to sample fetch functions
- CLEANUP: lua: remove unused hlua_smp->l7 and hlua_txn->l7
- MEDIUM: http: remove the now useless http_txn from {req/res} rules
- CLEANUP: lua: don't pass http_txn anymore to hlua_request_act_wrapper()
- MAJOR: sample: pass a pointer to the session to each sample fetch function
- MINOR: stream: provide a few helpers to retrieve frontend, listener and origin
- CLEANUP: stream: don't set ->target to the incoming connection anymore
- MINOR: stream: move session initialization before the stream's
- MINOR: session: store the session's accept date
- MINOR: session: don't rely on s->logs.logwait in embryonic sessions
- MINOR: session: implement session_free() and use it everywhere
- MINOR: session: add stick counters to the struct session
- REORG: stktable: move the stkctr_* functions from stream to sticktable
- MEDIUM: streams: support looking up stkctr in the session
- MEDIUM: session: update the session's stick counters upon session_free()
- MEDIUM: proto_tcp: track the session's counters in the connection ruleset
- MAJOR: tcp: make tcp_exec_req_rules() only rely on the session
- MEDIUM: stream: don't call stream_store_counters() in kill_mini_session() nor session_accept()
- MEDIUM: stream: move all the session-specific stuff of stream_accept() earlier
- MAJOR: stream: don't initialize the stream anymore in stream_accept
- MEDIUM: session: remove the task pointer from the session
- REORG: session: move the session parts out of stream.c
- MINOR: stream-int: make appctx_new() take the applet in argument
- MEDIUM: peers: move the appctx initialization earlier
- MINOR: session: introduce session_new()
- MINOR: session: make use of session_new() when creating a new session
- MINOR: peers: make use of session_new() when creating a new session
- MEDIUM: peers: initialize the task before the stream
- MINOR: session: set the CO_FL_CONNECTED flag on the connection once ready
- CLEANUP: stream.c: do not re-attach the connection to the stream
- MEDIUM: stream: isolate connection-specific initialization code
- MEDIUM: stream: also accept appctx as origin in stream_accept_session()
- MEDIUM: peers: make use of stream_accept_session()
- MEDIUM: frontend: make ->accept only return +/-1
- MEDIUM: stream: return the stream upon accept()
- MEDIUM: frontend: move some stream initialisation to stream_new()
- MEDIUM: frontend: move the fd-specific settings to session_accept_fd()
- MEDIUM: frontend: don't restrict frontend_accept() to connections anymore
- MEDIUM: frontend: move some remaining stream settings to stream_new()
- CLEANUP: frontend: remove one useless local variable
- MEDIUM: stream: don't rely on the session's listener anymore in stream_new()
- MEDIUM: lua: make use of stream_new() to create an outgoing connection
- MINOR: lua: minor cleanup in hlua_socket_new()
- MINOR: lua: no need for setting timeouts / conn_retries in hlua_socket_new()
- MINOR: peers: no need for setting timeouts / conn_retries in peer_session_create()
- CLEANUP: stream-int: swap stream-int and appctx declarations
- CLEANUP: namespaces: fix protection against multiple inclusions
- MINOR: session: maintain the session count stats in the session, not the stream
- MEDIUM: session: adjust the connection flags before stream_new()
- MINOR: stream: pass the pointer to the origin explicitly to stream_new()
- CLEANUP: poll: move the conditions for waiting out of the poll functions
- BUG/MEDIUM: listener: don't report an error when resuming unbound listeners
- BUG/MEDIUM: init: don't limit cpu-map to the first 32 processes only
- BUG/MAJOR: tcp/http: fix current_rule assignment when restarting over a ruleset
- BUG/MEDIUM: stream-int: always reset si->ops when si->end is nullified
- DOC: update the entities diagrams
- BUG/MEDIUM: http: properly retrieve the front connection
- MINOR: applet: add a new "owner" pointer in the appctx
- MEDIUM: applet: make the applet not depend on a stream interface anymore
- REORG: applet: move the applet definitions out of stream_interface
- CLEANUP: applet: rename struct si_applet to applet
- REORG: stream-int: create si_applet_ops dedicated to applets
- MEDIUM: applet: add basic support for an applet run queue
- MEDIUM: applet: implement a run queue for active appctx
- MEDIUM: stream-int: add a new function si_applet_done()
- MAJOR: applet: now call si_applet_done() instead of si_update() in I/O handlers
- MAJOR: stream: use a regular ->update for all stream interfaces
- MEDIUM: dumpstats: don't unregister the applet anymore
- MEDIUM: applet: centralize the call to si_applet_done() in the I/O handler
- MAJOR: stream: do not allocate request buffers anymore when the left side is an applet
- MINOR: stream-int: add two flags to indicate an applet's wishes regarding I/O
- MEDIUM: applet: make the applets only use si_applet_{cant|want|stop}_{get|put}
- MEDIUM: stream-int: pause the appctx if the task is woken up
- BUG/MAJOR: tcp: only call registered actions when they're registered
- BUG/MEDIUM: peers: fix applet scheduling
- BUG/MEDIUM: peers: recent applet changes broke peers updates scheduling
- MINOR: tools: provide an rdtsc() function for time comparisons
- IMPORT: lru: import simple ebtree-based LRU functions
- IMPORT: hash: import xxhash-r39
- MEDIUM: pattern: add a revision to all pattern expressions
- MAJOR: pattern: add LRU-based cache on pattern matching
- BUG/MEDIUM: http: remove content-length from chunked messages
- DOC: http: update the comments about the rules for determining transfer-length
- BUG/MEDIUM: http: do not restrict parsing of transfer-encoding to HTTP/1.1
- BUG/MEDIUM: http: incorrect transfer-coding in the request is a bad request
- BUG/MEDIUM: http: remove content-length form responses with bad transfer-encoding
- MEDIUM: http: restrict the HTTP version token to 1 digit as per RFC7230
- MEDIUM: http: disable support for HTTP/0.9 by default
- MEDIUM: http: add option-ignore-probes to get rid of the floods of 408
- BUG/MINOR: config: clear proxy->table.peers.p for disabled proxies
- MEDIUM: init: don't stop proxies in parent process when exiting
- MINOR: stick-table: don't attach to peers in stopped state
- MEDIUM: config: initialize stick-tables after peers, not before
- MEDIUM: peers: add the ability to disable a peers section
- MINOR: peers: store the pointer to the signal handler
- MEDIUM: peers: unregister peers that were never started
- MEDIUM: config: propagate the table's process list to the peers sections
- MEDIUM: init: stop any peers section not bound to the correct process
- MEDIUM: config: validate that peers sections are bound to exactly one process
- MAJOR: peers: allow peers section to be used with nbproc > 1
- DOC: relax the peers restriction to single-process
- DOC: document option http-ignore-probes
- DOC: fix the comments about the meaning of msg->sol in HTTP
- BUG/MEDIUM: http: wait for the exact amount of body bytes in wait_for_request_body
- BUG/MAJOR: http: prevent risk of reading past end with balance url_param
- MEDIUM: stream: move HTTP request body analyser before process_common
- MEDIUM: http: add a new option http-buffer-request
- MEDIUM: http: provide 3 fetches for the body
- DOC: update the doc on the proxy protocol
- BUILD: pattern: fix build warnings introduced in the LRU cache
- BUG/MEDIUM: stats: properly initialize the scope before dumping stats
- CLEANUP: config: fix misleading information in error message.
- MINOR: config: report the number of processes using a peers section in the error case
- BUG/MEDIUM: config: properly compute the default number of processes for a proxy
- MEDIUM: http: add new "capture" action for http-request
- BUG/MEDIUM: http: fix the http-request capture parser
- BUG/MEDIUM: http: don't forward client shutdown without NOLINGER except for tunnels
- BUILD/MINOR: ssl: fix build failure introduced by recent patch
- BUG/MAJOR: check: fix breakage of inverted tcp-check rules
- CLEANUP: checks: fix double usage of cur / current_step in tcp-checks
- BUG/MEDIUM: checks: do not dereference head of a tcp-check at the end
- CLEANUP: checks: simplify the loop processing of tcp-checks
- BUG/MAJOR: checks: always check for end of list before proceeding
- BUG/MEDIUM: checks: do not dereference a list as a tcpcheck struct
- BUG/MAJOR: checks: break infinite loops when tcp-checks starts with comment
- MEDIUM: http: make url_param iterate over multiple occurrences
- BUG/MEDIUM: peers: apply a random reconnection timeout
- MEDIUM: config: reject invalid config with name duplicates
- MEDIUM: config: reject conflicts in table names
- CLEANUP: proxy: make the proxy lookup functions more user-friendly
- MINOR: proxy: simply ignore duplicates in proxy name lookups
- MINOR: config: don't open-code proxy name lookups
- MEDIUM: config: clarify the conflicting modes detection for backend rules
- CLEANUP: proxy: remove now unused function findproxy_mode()
- MEDIUM: stick-table: remove the now duplicate find_stktable() function
- MAJOR: config: remove the deprecated reqsetbe / reqisetbe actions
- MINOR: proxy: add a new function proxy_find_by_id()
- MINOR: proxy: add a flag to memorize that the proxy's ID was forced
- MEDIUM: proxy: add a new proxy_find_best_match() function
- CLEANUP: http: explicitly reference request in http_apply_redirect_rules()
- MINOR: http: prepare support for parsing redirect actions on responses
- MEDIUM: http: implement http-response redirect rules
- MEDIUM: http: no need to close the request on redirect if data was parsed
- BUG/MEDIUM: http: fix body processing for the stats applet
- BUG/MINOR: da: fix log-level comparison to emove annoying warning
- CLEANUP: global: remove one ifdef USE_DEVICEATLAS
- CLEANUP: da: move the converter registration to da.c
- CLEANUP: da: register the config keywords in da.c
- CLEANUP: adjust the envelope name in da.h to reflect the file name
- CLEANUP: da: remove ifdef USE_DEVICEATLAS from da.c
- BUILD: make 51D easier to build by defaulting to 51DEGREES_SRC
- BUILD: fix build warning when not using 51degrees
- BUILD: make DeviceAtlas easier to build by defaulting to DEVICEATLAS_SRC
- BUILD: ssl: fix recent build breakage on older SSL libs
It is possible to propagate entries of any data-types in stick-tables between
several haproxy instances over TCP connections in a multi-master fashion. Each
instance pushes its local updates and insertions to remote peers. The pushed
values overwrite remote ones without aggregation. Interrupted exchanges are
automatically detected and recovered from the last known point.
This patch adds support of variables during the processing of each stream. The
variables scope can be set as 'session', 'transaction', 'request' or 'response'.
The variable type is the type returned by the assignment expression. The type
can change while the processing.
The allocated memory can be controlled for each scope and each request, and for
the global process.
With this patch, it is possible to configure HAProxy to forge the SSL
certificate sent to a client using the SNI servername. We do it in the SNI
callback.
To enable this feature, you must pass following BIND options:
* ca-sign-file <FILE> : This is the PEM file containing the CA certitifacte and
the CA private key to create and sign server's certificates.
* (optionally) ca-sign-pass <PASS>: This is the CA private key passphrase, if
any.
* generate-certificates: Enable the dynamic generation of certificates for a
listener.
Because generating certificates is expensive, there is a LRU cache to store
them. Its size can be customized by setting the global parameter
'tune.ssl.ssl-ctx-cache-size'.
As best I can tell, no mention is made of "set-log-level" in the Logging
[Section 8] of the doc.
Something akin to the following in the doc would have saved a good chunk of
time/angst in addressing a logging issue I encountered :
This diff declares the deviceatlas module and can accept up to 5
property names for the API lookup.
[wt: this should probably be moved to its own file using the keyword
registration mechanism]
This diff is for the DeviceAtlas convertor.
This patch adds the following converters :
deviceatlas-json-file
deviceatlas-log-level
deviceatlas-property-separator
First, the configuration keywords handling (only the log
level configuration part does not end the haproxy process
if it is wrongly set, it fallbacks to the default level).
Furthermore, init, deinit phases and the API lookup phase,
the da_haproxy function which is fed by the input provided
and set all necessary properties chosen via the configuration
to the output, separated by the separator.
This patch adds the ssl-dh-param-file global setting. It sets the
default DH parameters that will be used during the SSL/TLS handshake when
ephemeral Diffie-Hellman (DHE) key exchange is used, for all "bind" lines
which do not explicitely define theirs.
This patch checks the number of arguments of the keywords:
'global', 'defaults', 'listen', 'backend', 'frontend', 'peers' and
'userlist'
The 'global' section does not take any arguments.
Proxy sections does not support bind address as argument anymore. Those
sections supports only an <id> argument.
The 'defaults' section didn't had any check on its arguments. It takes
an optional <name> argument.
'peers' section takes a <peersect> argument.
'userlist' section takes a <listname> argument.
Sometimes it's problematic not to have "http-response redirect" rules,
for example to perform a browser-based redirect based on certain server
conditions (eg: match of a header).
This patch adds "http-response redirect location <fmt>" which gives
enough flexibility for most imaginable operations. The connection to
the server is closed when this is performed so that we don't risk to
forward any pending data from the server.
Any pending response data are trimmed so that we don't risk to
forward anything pending to the client. It's harmless to also do that
for requests so we don't need to consider the direction.
This patch adds a http response capture keyword with the same behavior
as the previous patch called "MEDIUM: capture: Allow capture with slot
identifier".
This patch modifies the current http-request capture function
and adds a new keyword "id" that permits to identify a capture slot.
If the identified doesn't exists, the action fails silently.
Note that this patch removs an unused list initilisation, which seems
to be inherited from a copy/paste. It's harmless and does not need to
be backported.
LIST_INIT((struct list *)&rule->arg.act.p[0]);
This patch adds "capture-req" and "capture-res". These two converters
capture their entry in the allocated slot given in argument and pass
the input on the output.
This patch adds a new keyword called "declare". This keyword
allow to declare some capture slots in requests and response.
It is useful for sharing capture between frontend and backends.
These ones were already obsoleted in 1.4, marked for removal in 1.5,
and not documented anymore. They used to emit warnings, and do still
require quite some code to stay in place. Let's remove them now.
For backend load balancing it sometimes makes sense to redispatch rather
than retrying against the same server. For example, when machines or routers
fail you may not want to waste time retrying against a dead server and
would instead prefer to immediately redispatch against other servers.
This patch allows backend sections to specify that they want to
redispatch on a particular interval. If the interval N is positive the
redispatch occurs on every Nth retry, and if the interval N is negative then
the redispatch occurs on the Nth retry prior to the last retry (-1 is the
default and maintains backwards compatibility). In low latency environments
tuning this setting can save a few hundred milliseconds when backends fail.
There are some situations hwere it's desirable to scan multiple occurrences
of a same parameter name in the query string. This change ensures this can
work, even with an empty name which will then iterate over all parameters.
Environment variables were expandables only in adresses.
Now there are expandables everywhere in the configuration file within
double quotes.
This patch breaks compatibility with the previous behavior of
environment variables in adresses, you must enclose adresses with double
quotes to make it work.
This is only possible in frontends of course, but it will finally
make it possible to capture arbitrary http parts, including URL
parameters or parts of the message body.
It's worth noting that an ugly (char **) cast had to be done to
call sample_fetch_string() which is caused by a 5- or 6- levels
of inheritance of this type in the API. Here it's harmless since
the function uses it as a const, but this API madness must be
fixed, starting with the one or two rare functions that modify
the args and inflict this on each and every keyword parser.
(cherry picked from commit 484a4f38460593919a1c1d9a047a043198d69f45)
This patch introduces quoting which allows to write configuration string
including spaces without escaping them.
Strong (with single quotes) and weak (with double quotes) quoting are
supported. Weak quoting supports escaping and special characters when
strong quoting does not interpret anything.
This patch could break configuration files where ' and " where used.
Body processing is still fairly limited, but this is a start. It becomes
possible to apply regex to find contents in order to decide where to route
a request for example. Only the first chunk is parsed for now, and the
response is not yet available (the parsing function must be duplicated for
this).
req.body : binary
This returns the HTTP request's available body as a block of data. It
requires that the request body has been buffered made available using
"option http-buffer-request". In case of chunked-encoded body, currently only
the first chunk is analyzed.
req.body_len : integer
This returns the length of the HTTP request's available body in bytes. It may
be lower than the advertised length if the body is larger than the buffer. It
requires that the request body has been buffered made available using
"option http-buffer-request".
req.body_size : integer
This returns the advertised length of the HTTP request's body in bytes. It
will represent the advertised Content-Length header, or the size of the first
chunk in case of chunked encoding. In order to parse the chunks, it requires
that the request body has been buffered made available using
"option http-buffer-request".
It is sometimes desirable to wait for the body of an HTTP request before
taking a decision. This is what is being done by "balance url_param" for
example. The first use case is to buffer requests from slow clients before
connecting to the server. Another use case consists in taking the routing
decision based on the request body's contents. This option placed in a
frontend or backend forces the HTTP processing to wait until either the whole
body is received, or the request buffer is full, or the first chunk is
complete in case of chunked encoding. It can have undesired side effects with
some applications abusing HTTP by expecting unbufferred transmissions between
the frontend and the backend, so this should definitely not be used by
default.
Note that it would not work for the response because we don't reset the
message state before starting to forward. For the response we need to
1) reset the message state to MSG_100_SENT or BODY , and 2) to reset
body_len in case of chunked encoding to avoid counting it twice.
Sometimes it's very hard to disable the use of peers because an empty
section is not valid, so it is necessary to comment out all references
to the section, and not to forget to restore them in the same state
after the operation.
Let's add a "disabled" keyword just like for proxies. A ->state member
in the peers struct is even present for this purpose but was never used
at all.
Maybe it would make sense to backport this to 1.5 as it's really cumbersome
there.
Recently some browsers started to implement a "pre-connect" feature
consisting in speculatively connecting to some recently visited web sites
just in case the user would like to visit them. This results in many
connections being established to web sites, which end up in 408 Request
Timeout if the timeout strikes first, or 400 Bad Request when the browser
decides to close them first. These ones pollute the log and feed the error
counters. There was already "option dontlognull" but it's insufficient in
this case. Instead, this option does the following things :
- prevent any 400/408 message from being sent to the client if nothing
was received over a connection before it was closed ;
- prevent any log from being emitted in this situation ;
- prevent any error counter from being incremented
That way the empty connection is silently ignored. Note that it is better
not to use this unless it is clear that it is needed, because it will hide
real problems. The most common reason for not receiving a request and seeing
a 408 is due to an MTU inconsistency between the client and an intermediary
element such as a VPN, which blocks too large packets. These issues are
generally seen with POST requests as well as GET with large cookies. The logs
are often the only way to detect them.
This patch should be backported to 1.5 since it avoids false alerts and
makes it easier to monitor haproxy's status.
There's not much reason for continuing to accept HTTP/0.9 requests
nowadays except for manual testing. Now we disable support for these
by default, unless option accept-invalid-http-request is specified,
in which case they continue to be upgraded to 1.0.
While RFC2616 used to allow an undeterminate amount of digits for the
major and minor components of the HTTP version, RFC7230 has reduced
that to a single digit for each.
If a server can't properly parse the version string and falls back to 0.9,
it could then send a head-less response whose payload would be taken for
headers, which could confuse downstream agents.
Since there's no more reason for supporting a version scheme that was
never used, let's upgrade to the updated version of the standard. It is
still possible to enforce support for the old behaviour using options
accept-invalid-http-request and accept-invalid-http-response.
It would be wise to backport this to 1.5 as well just in case.
Document the influence of email-alert level and other configuration
parameters on when email-alerts are sent.
Signed-off-by: Simon Horman <horms@verge.net.au>
The principle of this cache is to have a global cache for all pattern
matching operations which rely on lists (reg, sub, dir, dom, ...). The
input data, the expression and a random seed are used as a hashing key.
The cached entries contains a pointer to the expression and a revision
number for that expression so that we don't accidently used obsolete
data after a pattern update or a very unlikely hash collision.
Regarding the risk of collisions, 10k entries at 10k req/s mean 1% risk
of a collision after 60 years, that's already much less than the memory's
reliability in most machines and more durable than most admin's life
expectancy. A collision will result in a valid result to be returned
for a different entry from the same list. If this is not acceptable,
the cache can be disabled using tune.pattern.cache-size.
A test on a file containing 10k small regex showed that the regex
matching was limited to 6k/s instead of 70k with regular strings.
When enabling the LRU cache, the performance was back to 70k/s.
This commit adds 4 new log format variables that parse the
HTTP Request-Line for more specific logging than "%r" provides.
For example, we can parse the following HTTP Request-Line with
these new variables:
"GET /foo?bar=baz HTTP/1.1"
- %HM: HTTP Method ("GET")
- %HV: HTTP Version ("HTTP/1.1")
- %HU: HTTP Request-URI ("/foo?bar=baz")
- %HP: HTTP Request-URI without query string ("/foo")
This patch adds support for error codes 429 and 405 to Haproxy and a
"deny_status XXX" option to "http-request deny" where you can specify which
code is returned with 403 being the default. We really want to do this the
"haproxy way" and hope to have this patch included in the mainline. We'll
be happy address any feedback on how this is implemented.
This patch cretes a new Map class that permits to do some lookup in
HAProxy maps. This Map class is integration in the HAProxy update
system, so we can modify the map throught the socket.
This algorithm is exactly the same as "deflate" without the zlib wrapper,
and used as an alternative when the browser wants "deflate". All major
browsers understand it and despite violating the standards, it is known
to work better than "deflate", at least on MSIE and some versions of
Safari. Do not use it in conjunction with "deflate", use either one or
the other since both react to the same Accept-Encoding token. Note that
the lack of Adler32 checksum makes it slightly faster.
This fixes an issue that occurs when backend servers run on different
addresses or ports and you wish to healthcheck them via a consistent
port. For example, if you allocate backends dynamically as containers
that expose different ports and you use an inetd based healthchecking
component that runs on a dedicated port.
By adding the server address and port to the send-state header, the
healthcheck component can deduce which address and port to check by
reading the X-Haproxy-Server-State header out of the healthcheck and
parsing out the address and port.
Lua supports a memory allocator. This is very important as it's the
only way we can control the amount of memory allocatable by Lua scripts.
That avoids prevents bogus scripts from eating all of the system's memory.
The value can be enforced using tune.lua.maxmem in the global section.
Thispatch adds global log function. Each log message is writed on
the stderr and is sent to the default syslog server. These two
actions are done according the configuration.
The class name before the function doesn't have the same
syntax than the declared class names.
The return code is not declared in the prototype of the function.
After the last API modification, the hello world example does not
yet run.
This class is accessible via the TXN object. It is created only if
the attached proxy have HTTP mode. It contain all the HTTP
manipulation functions:
- req_get_headers
- req_del_header
- req_rep_header
- req_rep_value
- req_add_header
- req_set_header
- req_set_method
- req_set_path
- req_set_query
- req_set_uri
- res_get_headers
- res_del_header
- res_rep_header
- res_rep_value
- res_add_header
- res_set_header
Released version 1.6-dev1 with the following main changes :
- CLEANUP: extract temporary $CFG to eliminate duplication
- CLEANUP: extract temporary $BIN to eliminate duplication
- CLEANUP: extract temporary $PIDFILE to eliminate duplication
- CLEANUP: extract temporary $LOCKFILE to eliminate duplication
- CLEANUP: extract quiet_check() to avoid duplication
- BUG/MINOR: don't start haproxy on reload
- DOC: Address issue where documentation is excluded due to a gitignore rule.
- BUG/MEDIUM: systemd: set KillMode to 'mixed'
- BUILD: fix "make install" to support spaces in the install dirs
- BUG/MINOR: config: http-request replace-header arg typo
- BUG: config: error in http-response replace-header number of arguments
- DOC: missing track-sc* in http-request rules
- BUILD: lua: missing ifdef related to SSL when enabling LUA
- BUG/MEDIUM: regex: fix pcre_study error handling
- MEDIUM: regex: Use pcre_study always when PCRE is used, regardless of JIT
- BUG/MINOR: Fix search for -p argument in systemd wrapper.
- MEDIUM: Improve signal handling in systemd wrapper.
- DOC: fix typo in Unix Socket commands
- BUG/MEDIUM: checks: external checks can't change server status to UP
- BUG/MEDIUM: checks: segfault with external checks in a backend section
- BUG/MINOR: checks: external checks shouldn't wait for timeout to return the result
- BUG/MEDIUM: auth: fix segfault with http-auth and a configuration with an unknown encryption algorithm
- BUG/MEDIUM: config: userlists should ensure that encrypted passwords are supported
- BUG/MINOR: config: don't propagate process binding for dynamic use_backend
- BUG/MINOR: log: fix request flags when keep-alive is enabled
- BUG/MEDIUM: checks: fix conflicts between agent checks and ssl healthchecks
- MINOR: checks: allow external checks in backend sections
- MEDIUM: checks: provide environment variables to the external checks
- MINOR: checks: update dynamic environment variables in external checks
- DOC: checks: environment variables used by "external-check command"
- BUG/MEDIUM: backend: correctly detect the domain when use_domain_only is used
- MINOR: ssl: load certificates in alphabetical order
- BUG/MINOR: checks: prevent http keep-alive with http-check expect
- MINOR: lua: typo in an error message
- MINOR: report the Lua version in -vv
- MINOR: lua: add a compilation error message when compiled with an incompatible version
- BUG/MEDIUM: lua: segfault when calling haproxy sample fetches from lua
- BUILD: try to automatically detect the Lua library name
- BUILD/CLEANUP: systemd: avoid a warning due to mixed code and declaration
- BUG/MEDIUM: backend: Update hash to use unsigned int throughout
- BUG/MEDIUM: connection: fix memory corruption when building a proxy v2 header
- MEDIUM: connection: add new bit in Proxy Protocol V2
- BUG/MINOR: ssl: rejects OCSP response without nextupdate.
- BUG/MEDIUM: ssl: Fix to not serve expired OCSP responses.
- BUG/MINOR: ssl: Fix OCSP resp update fails with the same certificate configured twice.
- BUG/MINOR: ssl: Fix external function in order not to return a pointer on an internal trash buffer.
- MINOR: add fetchs 'ssl_c_der' and 'ssl_f_der' to return DER formatted certs
- MINOR: ssl: add statement to force some ssl options in global.
- BUG/MINOR: ssl: correctly initialize ssl ctx for invalid certificates
- BUG/MEDIUM: ssl: fix bad ssl context init can cause segfault in case of OOM.
- BUG/MINOR: samples: fix unnecessary memcopy converting binary to string.
- MINOR: samples: adds the bytes converter.
- MINOR: samples: adds the field converter.
- MINOR: samples: add the word converter.
- BUG/MINOR: server: move the directive #endif to the end of file
- BUG/MAJOR: buffer: check the space left is enough or not when input data in a buffer is wrapped
- DOC: fix a few typos
- CLEANUP: epoll: epoll_events should be allocated according to global.tune.maxpollevents
- BUG/MINOR: http: fix typo: "401 Unauthorized" => "407 Unauthorized"
- BUG/MINOR: parse: refer curproxy instead of proxy
- BUG/MINOR: parse: check the validity of size string in a more strict way
- BUILD: add new target 'make uninstall' to support uninstalling haproxy from OS
- DOC: expand the docs for the provided stats.
- BUG/MEDIUM: unix: do not unlink() abstract namespace sockets upon failure.
- MEDIUM: ssl: Certificate Transparency support
- MEDIUM: stats: proxied stats admin forms fix
- MEDIUM: http: Compress HTTP responses with status codes 201,202,203 in addition to 200
- BUG/MEDIUM: connection: sanitize PPv2 header length before parsing address information
- MAJOR: namespace: add Linux network namespace support
- MINOR: systemd: Check configuration before start
- BUILD: ssl: handle boringssl in openssl version detection
- BUILD: ssl: disable OCSP when using boringssl
- BUILD: ssl: don't call get_rfc2409_prime when using boringssl
- MINOR: ssl: don't use boringssl's cipher_list
- BUILD: ssl: use OPENSSL_NO_OCSP to detect OCSP support
- MINOR: stats: fix minor typo in HTML page
- MINOR: Also accept SIGHUP/SIGTERM in systemd-wrapper
- MEDIUM: Add support for configurable TLS ticket keys
- DOC: Document the new tls-ticket-keys bind keyword
- DOC: clearly state that the "show sess" output format is not fixed
- MINOR: stats: fix minor typo fix in stats_dump_errors_to_buffer()
- DOC: httplog does not support 'no'
- BUG/MEDIUM: ssl: Fix a memory leak in DHE key exchange
- MINOR: ssl: use SSL_get_ciphers() instead of directly accessing the cipher list.
- BUG/MEDIUM: Consistently use 'check' in process_chk
- MEDIUM: Add external check
- BUG/MEDIUM: Do not set agent health to zero if server is disabled in config
- MEDIUM/BUG: Only explicitly report "DOWN (agent)" if the agent health is zero
- MEDIUM: Remove connect_chk
- MEDIUM: Refactor init_check and move to checks.c
- MEDIUM: Add free_check() helper
- MEDIUM: Move proto and addr fields struct check
- MEDIUM: Attach tcpcheck_rules to check
- MEDIUM: Add parsing of mailers section
- MEDIUM: Allow configuration of email alerts
- MEDIUM: Support sending email alerts
- DOC: Document email alerts
- MINOR: Remove trailing '.' from email alert messages
- MEDIUM: Allow suppression of email alerts by log level
- BUG/MEDIUM: Do not consider an agent check as failed on L7 error
- MINOR: deinit: fix memory leak
- MINOR: http: export the function 'smp_fetch_base32'
- BUG/MEDIUM: http: tarpit timeout is reset
- MINOR: sample: add "json" converter
- BUG/MEDIUM: pattern: don't load more than once a pattern list.
- MINOR: map/acl/dumpstats: remove the "Done." message
- BUG/MAJOR: ns: HAProxy segfault if the cli_conn is not from a network connection
- BUG/MINOR: pattern: error message missing
- BUG/MEDIUM: pattern: some entries are not deleted with case insensitive match
- BUG/MINOR: ARG6 and ARG7 don't fit in a 32 bits word
- MAJOR: poll: only rely on wake_expired_tasks() to compute the wait delay
- MEDIUM: task: call session analyzers if the task is woken by a message.
- MEDIUM: protocol: automatically pick the proto associated to the connection.
- MEDIUM: channel: wake up any request analyzer on response activity
- MINOR: converters: add a "void *private" argument to converters
- MINOR: converters: give the session pointer as converter argument
- MINOR: sample: add private argument to the struct sample_fetch
- MINOR: global: export function and permits to not resolve DNS names
- MINOR: sample: add function for browsing samples.
- MINOR: global: export many symbols.
- MINOR: includes: fix a lot of missing or useless includes
- MEDIUM: tcp: add register keyword system.
- MEDIUM: buffer: make bo_putblk/bo_putstr/bo_putchk return the number of bytes copied.
- MEDIUM: http: change the code returned by the response processing rule functions
- MEDIUM: http/tcp: permit to resume http and tcp custom actions
- MINOR: channel: functions to get data from a buffer without copy
- MEDIUM: lua: lua integration in the build and init system.
- MINOR: lua: add ease functions
- MINOR: lua: add runtime execution context
- MEDIUM: lua: "com" signals
- MINOR: lua: add the configuration directive "lua-load"
- MINOR: lua: core: create "core" class and object
- MINOR: lua: post initialisation bindings
- MEDIUM: lua: add coroutine as tasks.
- MINOR: lua: add sample and args type converters
- MINOR: lua: txn: create class TXN associated with the transaction.
- MINOR: lua: add shared context in the lua stack
- MINOR: lua: txn: import existing sample-fetches in the class TXN
- MINOR: lua: txn: add lua function in TXN that returns an array of http headers
- MINOR: lua: register and execute sample-fetches in LUA
- MINOR: lua: register and execute converters in LUA
- MINOR: lua: add bindings for tcp and http actions
- MINOR: lua: core: add sleep functions
- MEDIUM: lua: socket: add "socket" class for TCP I/O
- MINOR: lua: core: pattern and acl manipulation
- MINOR: lua: channel: add "channel" class
- MINOR: lua: txn: object "txn" provides two objects "channel"
- MINOR: lua: core: can set the nice of the current task
- MINOR: lua: core: can yield an execution stack
- MINOR: lua: txn: add binding for closing the client connection.
- MEDIUM: lua: Lua initialisation "on demand"
- BUG/MAJOR: lua: send function fails and return bad bytes
- MINOR: remove unused declaration.
- MINOR: lua: remove some #define
- MINOR: lua: use bitfield and macro in place of integer and enum
- MINOR: lua: set skeleton for Lua execution expiration
- MEDIUM: lua: each yielding function returns a wake up time.
- MINOR: lua: adds "forced yield" flag
- MEDIUM: lua: interrupt the Lua execution for running other process
- MEDIUM: lua: change the sleep function core
- BUG/MEDIUM: lua: the execution timeout is ignored in yield case
- DOC: lua: Lua configuration documentation
- MINOR: lua: add the struct session in the lua channel struct
- BUG/MINOR: lua: set buffer if it is nnot avalaible.
- BUG/MEDIUM: lua: reset flags before resuming execution
- BUG/MEDIUM: lua: fix infinite loop about channel
- BUG/MEDIUM: lua: the Lua process is not waked up after sending data on requests side
- BUG/MEDIUM: lua: many errors when we try to send data with the channel API
- MEDIUM: lua: use the Lua-5.3 version of the library
- BUG/MAJOR: lua: some function are not yieldable, the forced yield causes errors
- BUG/MEDIUM: lua: can't handle the response bytes
- BUG/MEDIUM: lua: segfault with buffer_replace2
- BUG/MINOR: lua: check buffers before initializing socket
- BUG/MINOR: log: segfault if there are no proxy reference
- BUG/MEDIUM: lua: sockets don't have buffer to write data
- BUG/MEDIUM: lua: cannot connect socket
- BUG/MINOR: lua: sockets receive behavior doesn't follows the specs
- BUG/BUILD: lua: The strict Lua 5.3 version check is not done.
- BUG/MEDIUM: buffer: one byte miss in buffer free space check
- MEDIUM: lua: make the functions hlua_gethlua() and hlua_sethlua() faster
- MINOR: replace the Core object by a simple model.
- MEDIUM: lua: change the objects configuration
- MEDIUM: lua: create a namespace for the fetches
- MINOR: converters: add function to browse converters
- MINOR: lua: wrapper for converters
- MINOR: lua: replace function (req|get)_channel by a variable
- MINOR: lua: fetches and converters can return an empty string in place of nil
- DOC: lua api
- BUG/MEDIUM: sample: fix random number upper-bound
- BUG/MINOR: stats:Fix incorrect printf type.
- BUG/MAJOR: session: revert all the crappy client-side timeout changes
- BUG/MINOR: logs: properly initialize and count log sockets
- BUG/MEDIUM: http: fetch "base" is not compatible with set-header
- BUG/MINOR: counters: do not untrack counters before logging
- BUG/MAJOR: sample: correctly reinitialize sample fetch context before calling sample_process()
- MINOR: stick-table: make stktable_fetch_key() indicate why it failed
- BUG/MEDIUM: counters: fix track-sc* to wait on unstable contents
- BUILD: remove TODO from the spec file and add README
- MINOR: log: make MAX_SYSLOG_LEN overridable at build time
- MEDIUM: log: support a user-configurable max log line length
- DOC: provide an example of how to use ssl_c_sha1
- BUILD: checks: external checker needs signal.h
- BUILD: checks: kill a minor warning on Solaris in external checks
- BUILD: http: fix isdigit & isspace warnings on Solaris
- BUG/MINOR: listener: set the listener's fd to -1 after deletion
- BUG/MEDIUM: unix: failed abstract socket binding is retryable
- MEDIUM: listener: implement a per-protocol pause() function
- MEDIUM: listener: support rebinding during resume()
- BUG/MEDIUM: unix: completely unbind abstract sockets during a pause()
- DOC: explicitly mention the limits of abstract namespace sockets
- DOC: minor fix on {sc,src}_kbytes_{in,out}
- DOC: fix alphabetical sort of converters
- MEDIUM: stick-table: implement lookup from a sample fetch
- MEDIUM: stick-table: add new converters to fetch table data
- MINOR: samples: add two converters for the date format
- BUG/MAJOR: http: correctly rewind the request body after start of forwarding
- DOC: remove references to CPU=native in the README
- DOC: mention that "compression offload" is ignored in defaults section
- DOC: mention that Squid correctly responds 400 to PPv2 header
- BUILD: fix dependencies between config and compat.h
- MINOR: session: export the function 'smp_fetch_sc_stkctr'
- MEDIUM: stick-table: make it easier to register extra data types
- BUG/MINOR: http: base32+src should use the big endian version of base32
- MINOR: sample: allow IP address to cast to binary
- MINOR: sample: add new converters to hash input
- MINOR: sample: allow integers to cast to binary
- BUILD: report commit ID in git versions as well
- CLEANUP: session: move the stick counters declarations to stick_table.h
- MEDIUM: http: add the track-sc* actions to http-request rules
- BUG/MEDIUM: connection: fix proxy v2 header again!
- BUG/MAJOR: tcp: fix a possible busy spinning loop in content track-sc*
- OPTIM/MINOR: proxy: reduce struct proxy by 48 bytes on 64-bit archs
- MINOR: log: add a new field "%lc" to implement a per-frontend log counter
- BUG/MEDIUM: http: fix inverted condition in pat_match_meth()
- BUG/MEDIUM: http: fix improper parsing of HTTP methods for use with ACLs
- BUG/MINOR: pattern: remove useless allocation of unused trash in pat_parse_reg()
- BUG/MEDIUM: acl: correctly compute the output type when a converter is used
- CLEANUP: acl: cleanup some of the redundancy and spaghetti after last fix
- BUG/CRITICAL: http: don't update msg->sov once data start to leave the buffer
- MEDIUM: http: enable header manipulation for 101 responses
- BUG/MEDIUM: config: propagate frontend to backend process binding again.
- MEDIUM: config: properly propagate process binding between proxies
- MEDIUM: config: make the frontends automatically bind to the listeners' processes
- MEDIUM: config: compute the exact bind-process before listener's maxaccept
- MEDIUM: config: only warn if stats are attached to multi-process bind directives
- MEDIUM: config: report it when tcp-request rules are misplaced
- DOC: indicate in the doc that track-sc* can wait if data are missing
- MINOR: config: detect the case where a tcp-request content rule has no inspect-delay
- MEDIUM: systemd-wrapper: support multiple executable versions and names
- BUG/MEDIUM: remove debugging code from systemd-wrapper
- BUG/MEDIUM: http: adjust close mode when switching to backend
- BUG/MINOR: config: don't propagate process binding on fatal errors.
- BUG/MEDIUM: check: rule-less tcp-check must detect connect failures
- BUG/MINOR: tcp-check: report the correct failed step in the status
- DOC: indicate that weight zero is reported as DRAIN
- BUG/MEDIUM: config: avoid skipping disabled proxies
- BUG/MINOR: config: do not accept more track-sc than configured
- BUG/MEDIUM: backend: fix URI hash when a query string is present
- BUG/MEDIUM: http: don't dump debug headers on MSG_ERROR
- BUG/MAJOR: cli: explicitly call cli_release_handler() upon error
- BUG/MEDIUM: tcp: fix outgoing polling based on proxy protocol
- BUILD/MINOR: ssl: de-constify "ciphers" to avoid a warning on openssl-0.9.8
- BUG/MEDIUM: tcp: don't use SO_ORIGINAL_DST on non-AF_INET sockets
- BUG/BUILD: revert accidental change in the makefile from latest SSL fix
- BUG/MEDIUM: ssl: force a full GC in case of memory shortage
- MEDIUM: ssl: add support for smaller SSL records
- MINOR: session: release a few other pools when stopping
- MINOR: task: release the task pool when stopping
- BUG/MINOR: config: don't inherit the default balance algorithm in frontends
- BUG/MAJOR: frontend: initialize capture pointers earlier
- BUG/MINOR: stats: correctly set the request/response analysers
- MAJOR: polling: centralize calls to I/O callbacks
- DOC: fix typo in the body parser documentation for msg.sov
- BUG/MINOR: peers: the buffer size is global.tune.bufsize, not trash.size
- MINOR: sample: add a few basic internal fetches (nbproc, proc, stopping)
- DEBUG: pools: apply poisonning on every allocated pool
- BUG/MAJOR: sessions: unlink session from list on out of memory
- BUG/MEDIUM: patterns: previous fix was incomplete
- BUG/MEDIUM: payload: ensure that a request channel is available
- BUG/MINOR: tcp-check: don't condition data polling on check type
- BUG/MEDIUM: tcp-check: don't rely on random memory contents
- BUG/MEDIUM: tcp-checks: disable quick-ack unless next rule is an expect
- BUG/MINOR: config: fix typo in condition when propagating process binding
- BUG/MEDIUM: config: do not propagate processes between stopped processes
- BUG/MAJOR: stream-int: properly check the memory allocation return
- BUG/MEDIUM: memory: fix freeing logic in pool_gc2()
- BUG/MAJOR: namespaces: conn->target is not necessarily a server
- BUG/MEDIUM: compression: correctly report zlib_mem
- CLEANUP: lists: remove dead code
- CLEANUP: memory: remove dead code
- CLEANUP: memory: replace macros pool_alloc2/pool_free2 with functions
- MINOR: memory: cut pool allocator in 3 layers
- MEDIUM: memory: improve pool_refill_alloc() to pass a refill count
- MINOR: stream-int: retrieve session pointer from stream-int
- MINOR: buffer: reset a buffer in b_reset() and not channel_init()
- MEDIUM: buffer: use b_alloc() to allocate and initialize a buffer
- MINOR: buffer: move buffer initialization after channel initialization
- MINOR: buffer: only use b_free to release buffers
- MEDIUM: buffer: always assign a dummy empty buffer to channels
- MEDIUM: buffer: add a new buf_wanted dummy buffer to report failed allocations
- MEDIUM: channel: do not report full when buf_empty is present on a channel
- MINOR: session: group buffer allocations together
- MINOR: buffer: implement b_alloc_fast()
- MEDIUM: buffer: implement b_alloc_margin()
- MEDIUM: session: implement a basic atomic buffer allocator
- MAJOR: session: implement a wait-queue for sessions who need a buffer
- MAJOR: session: only allocate buffers when needed
- MINOR: stats: report a "waiting" flags for sessions
- MAJOR: session: only wake up as many sessions as available buffers permit
- MINOR: config: implement global setting tune.buffers.reserve
- MINOR: config: implement global setting tune.buffers.limit
- MEDIUM: channel: implement a zero-copy buffer transfer
- MEDIUM: stream-int: support splicing from applets
- OPTIM: stream-int: try to send pending spliced data
- CLEANUP: session: remove session_from_task()
- DOC: add missing entry for log-format and clarify the text
- MINOR: logs: add a new per-proxy "log-tag" directive
- BUG/MEDIUM: http: fix header removal when previous header ends with pure LF
- MINOR: config: extend the default max hostname length to 64 and beyond
- BUG/MEDIUM: channel: fix possible integer overflow on reserved size computation
- BUG/MINOR: channel: compare to_forward with buf->i, not buf->size
- MINOR: channel: add channel_in_transit()
- MEDIUM: channel: make buffer_reserved() use channel_in_transit()
- MEDIUM: channel: make bi_avail() use channel_in_transit()
- BUG/MEDIUM: channel: don't schedule data in transit for leaving until connected
- CLEANUP: channel: rename channel_reserved -> channel_is_rewritable
- MINOR: channel: rename channel_full() to !channel_may_recv()
- MINOR: channel: rename buffer_reserved() to channel_reserved()
- MINOR: channel: rename buffer_max_len() to channel_recv_limit()
- MINOR: channel: rename bi_avail() to channel_recv_max()
- MINOR: channel: rename bi_erase() to channel_truncate()
- BUG/MAJOR: log: don't try to emit a log if no logger is set
- MINOR: tools: add new round_2dig() function to round integers
- MINOR: global: always export some SSL-specific metrics
- MINOR: global: report information about the cost of SSL connections
- MAJOR: init: automatically set maxconn and/or maxsslconn when possible
- MINOR: http: add a new fetch "query" to extract the request's query string
- MINOR: hash: add new function hash_crc32
- MINOR: samples: provide a "crc32" converter
- MEDIUM: backend: add the crc32 hash algorithm for load balancing
- BUG/MINOR: args: add missing entry for ARGT_MAP in arg_type_names
- BUG/MEDIUM: http: make http-request set-header compute the string before removal
- MEDIUM: args: use #define to specify the number of bits used by arg types and counts
- MEDIUM: args: increase arg type to 5 bits and limit arg count to 5
- MINOR: args: add type-specific flags for each arg in a list
- MINOR: args: implement a new arg type for regex : ARGT_REG
- MEDIUM: regex: add support for passing regex flags to regex_exec_match()
- MEDIUM: samples: add a regsub converter to perform regex-based transformations
- BUG/MINOR: sample: fix case sensitivity for the regsub converter
- MEDIUM: http: implement http-request set-{method,path,query,uri}
- DOC: fix missing closing brackend on regsub
- MEDIUM: samples: provide basic arithmetic and bitwise operators
- MEDIUM: init: continue to enforce SYSTEM_MAXCONN with auto settings if set
- BUG/MINOR: http: fix incorrect header value offset in replace-hdr/replace-value
- BUG/MINOR: http: abort request processing on filter failure
- MEDIUM: tcp: implement tcp-ut bind option to set TCP_USER_TIMEOUT
- MINOR: ssl/server: add the "no-ssl-reuse" server option
- BUG/MAJOR: peers: initialize s->buffer_wait when creating the session
- MINOR: http: add a new function to iterate over each header line
- MINOR: http: add the new sample fetches req.hdr_names and res.hdr_names
- MEDIUM: task: always ensure that the run queue is consistent
- BUILD: Makefile: add -Wdeclaration-after-statement
- BUILD/CLEANUP: ssl: avoid a warning due to mixed code and declaration
- BUILD/CLEANUP: config: silent 3 warnings about mixed declarations with code
- MEDIUM: protocol: use a family array to index the protocol handlers
- BUILD: lua: cleanup many mixed occurrences declarations & code
- BUG/MEDIUM: task: fix recently introduced scheduler skew
- BUG/MINOR: lua: report the correct function name in an error message
- BUG/MAJOR: http: fix stats regression consecutive to HTTP_RULE_RES_YIELD
- Revert "BUG/MEDIUM: lua: can't handle the response bytes"
- MINOR: lua: convert IP addresses to type string
- CLEANUP: lua: use the same function names in C and Lua
- REORG/MAJOR: move session's req and resp channels back into the session
- CLEANUP: remove now unused channel pool
- REORG/MEDIUM: stream-int: introduce si_ic/si_oc to access channels
- MEDIUM: stream-int: add a flag indicating which side the SI is on
- MAJOR: stream-int: only rely on SI_FL_ISBACK to find the requested channel
- MEDIUM: stream-interface: remove now unused pointers to channels
- MEDIUM: stream-int: make si_sess() use the stream int's side
- MEDIUM: stream-int: use si_task() to retrieve the task from the stream int
- MEDIUM: stream-int: remove any reference to the owner
- CLEANUP: stream-int: add si_ib/si_ob to dereference the buffers
- CLEANUP: stream-int: add si_opposite() to find the other stream interface
- REORG/MEDIUM: channel: only use chn_prod / chn_cons to find stream-interfaces
- MEDIUM: channel: add a new flag "CF_ISRESP" for the response channel
- MAJOR: channel: only rely on the new CF_ISRESP flag to find the SI
- MEDIUM: channel: remove now unused ->prod and ->cons pointers
- CLEANUP: session: simplify references to chn_{prod,cons}(&s->{req,res})
- CLEANUP: session: use local variables to access channels / stream ints
- CLEANUP: session: don't needlessly pass a pointer to the stream-int
- CLEANUP: session: don't use si_{ic,oc} when we know the session.
- CLEANUP: stream-int: limit usage of si_ic/si_oc
- CLEANUP: lua: limit usage of si_ic/si_oc
- MINOR: channel: add chn_sess() helper to retrieve session from channel
- MEDIUM: session: simplify receive buffer allocator to only use the channel
- MEDIUM: lua: use CF_ISRESP to detect the channel's side
- CLEANUP: lua: remove the session pointer from hlua_channel
- CLEANUP: lua: hlua_channel_new() doesn't need the pointer to the session anymore
- MEDIUM: lua: remove struct hlua_channel
- MEDIUM: lua: remove hlua_sample_fetch
Adds ability to include Signed Certificate Timestamp List in TLS
extension. File containing SCTL must be present at the same path of
the certificate file, suffixed with '.sctl'. This requires OpenSSL
1.0.2 or later.
These new sample fetches retrieve the list of header names as they appear
in the request or response. This can be used for debugging, for statistics
as well as an aid to better detect the presence of proxies or plugins on
some browsers, which alter the request compared to a regular browser by
adding or reordering headers.
This option disables SSL session reuse when SSL is used to communicate with
the server. It will force the server to perform a full handshake for every
new connection. It's probably only useful for benchmarking, troubleshooting,
and for paranoid users.
This patch adds a new option which allows configuration of the maximum
log level of messages for which email alerts will be sent.
The default is alert which is more restrictive than
the current code which sends email alerts for all priorities.
That behaviour may be configured using the new configuration
option to set the maximum level to notice or greater.
email-alert level notice
Signed-off-by: Simon Horman <horms@verge.net.au>
On Linux since 2.6.37, it's possible to set the socket timeout for
pending outgoing data, with an accuracy of 1 millisecond. This is
pretty handy to deal with dead connections to clients and or servers.
For now we only implement it on the frontend side (bind line) so
that when a client disappears from the net, we're able to quickly
get rid of its connection and possibly release a server connection.
This can be useful with long-lived connections where an application
level timeout is not suited because long pauses are expected (remote
terminals, connection pools, etc).
Thanks to Thijs Houtenbos and John Eckersberg for the suggestion.
Sébastien Rohaut reported that string negation in http-check expect didn't
work as expected.
The misbehaviour is caused by responses with HTTP keep-alive. When the
condition is not met, haproxy awaits more data until the buffer is full or the
connection is closed, resulting in a check timeout when "timeout check" is
lower than the keep-alive timeout on the server side.
In order to avoid the issue, when a "http-check expect" is used, haproxy will
ask the server to disable keep-alive by automatically appending a
"Connection: close" header to the request.
This commit introduces a new category of converters. They are bitwise and
arithmetic operators which support performing basic operations on integers.
Some bitwise operations are supported (and, or, xor, cpl) and some arithmetic
operations are supported (add, sub, mul, div, mod, neg). Some comparators
are provided (odd, even, not, bool) which make it possible to report a match
without having to write an ACL.
The detailed list of new operators as they appear in the doc is :
add(<value>)
Adds <value> to the input value of type unsigned integer, and returns the
result as an unsigned integer.
and(<value>)
Performs a bitwise "AND" between <value> and the input value of type unsigned
integer, and returns the result as an unsigned integer.
bool
Returns a boolean TRUE if the input value of type unsigned integer is
non-null, otherwise returns FALSE. Used in conjunction with and(), it can be
used to report true/false for bit testing on input values (eg: verify the
presence of a flag).
cpl
Takes the input value of type unsigned integer, applies a twos-complement
(flips all bits) and returns the result as an unsigned integer.
div(<value>)
Divides the input value of type unsigned integer by <value>, and returns the
result as an unsigned integer. If <value> is null, the largest unsigned
integer is returned (typically 2^32-1).
even
Returns a boolean TRUE if the input value of type unsigned integer is even
otherwise returns FALSE. It is functionally equivalent to "not,and(1),bool".
mod(<value>)
Divides the input value of type unsigned integer by <value>, and returns the
remainder as an unsigned integer. If <value> is null, then zero is returned.
mul(<value>)
Multiplies the input value of type unsigned integer by <value>, and returns
the product as an unsigned integer. In case of overflow, the higher bits are
lost, leading to seemingly strange values.
neg
Takes the input value of type unsigned integer, computes the opposite value,
and returns the remainder as an unsigned integer. 0 is identity. This
operator is provided for reversed subtracts : in order to subtract the input
from a constant, simply perform a "neg,add(value)".
not
Returns a boolean FALSE if the input value of type unsigned integer is
non-null, otherwise returns TRUE. Used in conjunction with and(), it can be
used to report true/false for bit testing on input values (eg: verify the
absence of a flag).
odd
Returns a boolean TRUE if the input value of type unsigned integer is odd
otherwise returns FALSE. It is functionally equivalent to "and(1),bool".
or(<value>)
Performs a bitwise "OR" between <value> and the input value of type unsigned
integer, and returns the result as an unsigned integer.
sub(<value>)
Subtracts <value> from the input value of type unsigned integer, and returns
the result as an unsigned integer. Note: in order to subtract the input from
a constant, simply perform a "neg,add(value)".
xor(<value>)
Performs a bitwise "XOR" (exclusive OR) between <value> and the input value
of type unsigned integer, and returns the result as an unsigned integer.
As reported by Raphaël Enrici, certificates loaded from a directory are loaded
in a non predictive order. If no certificate was first loaded from a file, it
can result in different behaviours when haproxy is used in cluster.
We can also imagine other cases which weren't met yet.
Instead of using readdir(), we can use scandir() and sort files alphabetically.
This will ensure a predictive behaviour.
This patch should also be backported to 1.5.
This commit implements the following new actions :
- "set-method" rewrites the request method with the result of the
evaluation of format string <fmt>. There should be very few valid reasons
for having to do so as this is more likely to break something than to fix
it.
- "set-path" rewrites the request path with the result of the evaluation of
format string <fmt>. The query string, if any, is left intact. If a
scheme and authority is found before the path, they are left intact as
well. If the request doesn't have a path ("*"), this one is replaced with
the format. This can be used to prepend a directory component in front of
a path for example. See also "set-query" and "set-uri".
Example :
# prepend the host name before the path
http-request set-path /%[hdr(host)]%[path]
- "set-query" rewrites the request's query string which appears after the
first question mark ("?") with the result of the evaluation of format
string <fmt>. The part prior to the question mark is left intact. If the
request doesn't contain a question mark and the new value is not empty,
then one is added at the end of the URI, followed by the new value. If
a question mark was present, it will never be removed even if the value
is empty. This can be used to add or remove parameters from the query
string. See also "set-query" and "set-uri".
Example :
# replace "%3D" with "=" in the query string
http-request set-query %[query,regsub(%3D,=,g)]
- "set-uri" rewrites the request URI with the result of the evaluation of
format string <fmt>. The scheme, authority, path and query string are all
replaced at once. This can be used to rewrite hosts in front of proxies,
or to perform complex modifications to the URI such as moving parts
between the path and the query string. See also "set-path" and
"set-query".
All of them are handled by the same parser and the same exec function,
which is why they're merged all together. For once, instead of adding
even more entries to the huge switch/case, we used the new facility to
register action keywords. A number of the existing ones should probably
move there as well.
We can now replace matching regex parts with a string, a la sed. Note
that there are at least 3 different behaviours for existing sed
implementations when matching 0-length strings. Here is the result
of the following operation on each implementationt tested :
echo 'xzxyz' | sed -e 's/x*y*/A/g'
GNU sed 4.2.1 => AzAzA
Perl's sed 5.16.1 => AAzAAzA
Busybox v1.11.2 sed => AzAz
The psed behaviour was adopted because it causes the least exceptions
in the code and seems logical from a certain perspective :
- "x" matches x*y* => add "A" and skip "x"
- "z" matches x*y* => add "A" and keep "z", not part of the match
- "xy" matches x*y* => add "A" and skip "xy"
- "z" matches x*y* => add "A" and keep "z", not part of the match
- "" matches x*y* => add "A" and stop here
Anyway, given the incompatibilities between implementations, it's unlikely
that some processing will rely on this behaviour.
There currently is one big limitation : the configuration parser makes it
impossible to pass commas or closing parenthesis (or even closing brackets
in log formats). But that's still quite usable to replace certain characters
or character sequences. It will become more complete once the config parser
is reworked.
The way http-request/response set-header works is stupid. For a naive
reuse of the del-header code, it removes all occurrences of the header
to be set before computing the new format string. This makes it almost
unusable because it is not possible to append values to an existing
header without first copying them to a dummy header, performing the
copy back and removing the dummy header.
Instead, let's share the same code as add-header and perform the optional
removal after the string is computed. That way it becomes possible to
write things like :
http-request set-header X-Forwarded-For %[hdr(X-Forwarded-For)],%[src]
Note that this change is not expected to have any undesirable impact on
existing configs since if they rely on the bogus behaviour, they don't
work as they always retrieve an empty string.
This fix must be backported to 1.5 to stop the spreadth of ugly configs.
This converter hashes a binary input sample into an unsigned 32-bit quantity
using the CRC32 hash function. Optionally, it is possible to apply a full
avalanche hash function to the output if the optional <avalanche> argument
equals 1. This converter uses the same functions as used by the various hash-
based load balancing algorithms, so it will provide exactly the same results.
It is provided for compatibility with other software which want a CRC32 to be
computed on some input keys, so it follows the most common implementation as
found in Ethernet, Gzip, PNG, etc... It is slower than the other algorithms
but may provide a better or at least less predictable distribution.
This fetch extracts the request's query string, which starts after the first
question mark. If no question mark is present, this fetch returns nothing. If
a question mark is present but nothing follows, it returns an empty string.
This means it's possible to easily know whether a query string is present
using the "found" matching method. This fetch is the completemnt of "path"
which stops before the question mark.
If a memory size limit is enforced using "-n" on the command line and
one or both of maxconn / maxsslconn are not set, instead of using the
build-time values, haproxy now computes the number of sessions that can
be allocated depending on a number of parameters among which :
- global.maxconn (if set)
- global.maxsslconn (if set)
- maxzlibmem
- tune.ssl.cachesize
- presence of SSL in at least one frontend (bind lines)
- presence of SSL in at least one backend (server lines)
- tune.bufsize
- tune.cookie_len
The purpose is to ensure that not haproxy will not run out of memory
when maxing out all parameters. If neither maxconn nor maxsslconn are
used, it will consider that 100% of the sessions involve SSL on sides
where it's supported. That means that it will typically optimize maxconn
for SSL offloading or SSL bridging on all connections. This generally
means that the simple act of enabling SSL in a frontend or in a backend
will significantly reduce the global maxconn but in exchange of that, it
will guarantee that it will not fail.
All metrics may be enforced using #defines to accomodate variations in
SSL libraries or various allocation sizes.
This is equivalent to what was done in commit 48936af ("[MINOR] log:
ability to override the syslog tag") but this time instead of doing
this globally, it does it per proxy. The purpose is to be able to use
a separate log tag for various proxies (eg: make it easier to route
log messages depending on the customer).
Add some documentation about the environment variables available with
"external-check command". Currently, only one of them is dynamically updated
on each check : HAPROXY_SERVER_CURCONN.
This setting is used to limit memory usage without causing the alloc
failures caused by "-m". Unexpectedly, tests have shown a performance
boost of up to about 18% on HTTP traffic when limiting the number of
buffers to about 10% of the amount of concurrent connections.
tune.buffers.limit <number>
Sets a hard limit on the number of buffers which may be allocated per process.
The default value is zero which means unlimited. The minimum non-zero value
will always be greater than "tune.buffers.reserve" and should ideally always
be about twice as large. Forcing this value can be particularly useful to
limit the amount of memory a process may take, while retaining a sane
behaviour. When this limit is reached, sessions which need a buffer wait for
another one to be released by another session. Since buffers are dynamically
allocated and released, the waiting time is very short and not perceptible
provided that limits remain reasonable. In fact sometimes reducing the limit
may even increase performance by increasing the CPU cache's efficiency. Tests
have shown good results on average HTTP traffic with a limit to 1/10 of the
expected global maxconn setting, which also significantly reduces memory
usage. The memory savings come from the fact that a number of connections
will not allocate 2*tune.bufsize. It is best not to touch this value unless
advised to do so by an haproxy core developer.
Used in conjunction with the dynamic buffer allocator.
tune.buffers.reserve <number>
Sets the number of buffers which are pre-allocated and reserved for use only
during memory shortage conditions resulting in failed memory allocations. The
minimum value is 2 and is also the default. There is no reason a user would
want to change this value, it's mostly aimed at haproxy core developers.
Previously, external checks required to find at least one listener in order to
pass the <proxy_address> and <proxy_port> arguments to the external script.
It prevented from declaring external checks in backend sections and haproxy
rejected the configuration.
The listener is now optional and values "NOT_USED" are passed if no listener is
found. For instance, this is the case with a backend section.
This is specific to the 1.6 branch.
word(<index>,<delimiters>)
Extracts the nth word considering given delimiters from an input string.
Indexes start at 1 and delimiters are a string formatted list of chars.
field(<index>,<delimiters>)
Extracts the substring at the given index considering given delimiters from
an input string. Indexes start at 1 and delimiters are a string formatted
list of chars.
bytes(<offset>[,<length>])
Extracts a some bytes from an input binary sample. The result is a
binary sample starting at an offset (in bytes) of the original sample
and optionnaly truncated at the given length.
Sometimes, either for debugging or for logging we'd like to have a bit
of information about the running process. Here are 3 new fetches for this :
nbproc : integer
Returns an integer value corresponding to the number of processes that were
started (it equals the global "nbproc" setting). This is useful for logging
and debugging purposes.
proc : integer
Returns an integer value corresponding to the position of the process calling
the function, between 1 and global.nbproc. This is useful for logging and
debugging purposes.
stopping : boolean
Returns TRUE if the process calling the function is currently stopping. This
can be useful for logging, or for relaxing certain checks or helping close
certain connections upon graceful shutdown.
This patch makes it possible to create binds and servers in separate
namespaces. This can be used to proxy between multiple completely independent
virtual networks (with possibly overlapping IP addresses) and a
non-namespace-aware proxy implementation that supports the proxy protocol (v2).
The setup is something like this:
net1 on VLAN 1 (namespace 1) -\
net2 on VLAN 2 (namespace 2) -- haproxy ==== proxy (namespace 0)
net3 on VLAN 3 (namespace 3) -/
The proxy is configured to make server connections through haproxy and sending
the expected source/target addresses to haproxy using the proxy protocol.
The network namespace setup on the haproxy node is something like this:
= 8< =
$ cat setup.sh
ip netns add 1
ip link add link eth1 type vlan id 1
ip link set eth1.1 netns 1
ip netns exec 1 ip addr add 192.168.91.2/24 dev eth1.1
ip netns exec 1 ip link set eth1.$id up
...
= 8< =
= 8< =
$ cat haproxy.cfg
frontend clients
bind 127.0.0.1:50022 namespace 1 transparent
default_backend scb
backend server
mode tcp
server server1 192.168.122.4:2222 namespace 2 send-proxy-v2
= 8< =
A bind line creates the listener in the specified namespace, and connections
originating from that listener also have their network namespace set to
that of the listener.
A server line either forces the connection to be made in a specified
namespace or may use the namespace from the client-side connection if that
was set.
For more documentation please read the documentation included in the patch
itself.
Signed-off-by: KOVACS Tamas <ktamas@balabit.com>
Signed-off-by: Sarkozi Laszlo <laszlo.sarkozi@balabit.com>
Signed-off-by: KOVACS Krisztian <hidden@balabit.com>
Adds global statements 'ssl-default-server-options' and
'ssl-default-bind-options' to force on 'server' and 'bind' lines
some ssl options.
Currently available options are 'no-sslv3', 'no-tlsv10', 'no-tlsv11',
'no-tlsv12', 'force-sslv3', 'force-tlsv10', 'force-tlsv11',
'force-tlsv12', and 'no-tls-tickets'.
Example:
global
ssl-default-server-options no-sslv3
ssl-default-bind-options no-sslv3
ssl_c_der : binary
Returns the DER formatted certificate presented by the client when the
incoming connection was made over an SSL/TLS transport layer. When used for
an ACL, the value(s) to match against can be passed in hexadecimal form.
ssl_f_der : binary
Returns the DER formatted certificate presented by the frontend when the
incoming connection was made over an SSL/TLS transport layer. When used for
an ACL, the value(s) to match against can be passed in hexadecimal form.
This converter escapes string to use it as json/ascii escaped string.
It can read UTF-8 with differents behavior on errors and encode it in
json/ascii.
json([<input-code>])
Escapes the input string and produces an ASCII ouput string ready to use as a
JSON string. The converter tries to decode the input string according to the
<input-code> parameter. It can be "ascii", "utf8", "utf8s", "utf8"" or
"utf8ps". The "ascii" decoder never fails. The "utf8" decoder detects 3 types
of errors:
- bad UTF-8 sequence (lone continuation byte, bad number of continuation
bytes, ...)
- invalid range (the decoded value is within a UTF-8 prohibited range),
- code overlong (the value is encoded with more bytes than necessary).
The UTF-8 JSON encoding can produce a "too long value" error when the UTF-8
character is greater than 0xffff because the JSON string escape specification
only authorizes 4 hex digits for the value encoding. The UTF-8 decoder exists
in 4 variants designated by a combination of two suffix letters : "p" for
"permissive" and "s" for "silently ignore". The behaviors of the decoders
are :
- "ascii" : never fails ;
- "utf8" : fails on any detected errors ;
- "utf8s" : never fails, but removes characters corresponding to errors ;
- "utf8p" : accepts and fixes the overlong errors, but fails on any other
error ;
- "utf8ps" : never fails, accepts and fixes the overlong errors, but removes
characters corresponding to the other errors.
This converter is particularly useful for building properly escaped JSON for
logging to servers which consume JSON-formated traffic logs.
Example:
capture request header user-agent len 150
capture request header Host len 15
log-format {"ip":"%[src]","user-agent":"%[capture.req.hdr(1),json]"}
Input request from client 127.0.0.1:
GET / HTTP/1.0
User-Agent: Very "Ugly" UA 1/2
Output log:
{"ip":"127.0.0.1","user-agent":"Very \"Ugly\" UA 1\/2"}
Since commit 1b71eb5 ("BUG/MEDIUM: counters: fix track-sc* to wait on
unstable contents"), we don't need the "if HTTP" anymore. But the doc
was not updated to reflect this.
Since this change was backported to 1.5, this doc update should be
backported as well.
When a frontend does not have any bind-process directive, make it
automatically bind to the union of all of its listeners' processes
instead of binding to all processes. That will make it possible to
have the expected behaviour without having to explicitly specify a
bind-process directive.
Note that if the listeners are not bound to a specific process, the
default is still to bind to all processes.
This change could be backported to 1.5 as it simplifies process
management, and was planned to be done during the 1.5 development phase.
Sometimes it would be convenient to have a log counter so that from a log
server we know whether some logs were lost or not. The frontend's log counter
serves exactly this purpose. It's incremented each time a traffic log is
produced. If a log is disabled using "http-request set-log-level silent",
the counter will not be incremented. However, admin logs are not accounted
for. Also, if logs are filtered out before being sent to the server because
of a minimum level set on the log line, the counter will be increased anyway.
The counter is 32-bit, so it will wrap, but that's not an issue considering
that 4 billion logs are rarely in the same file, let alone close to each
other.
Add support for http-request track-sc, similar to what is done in
tcp-request for backends. A new act_prm field was added to HTTP
request rules to store the track params (table, counter). Just
like for TCP rules, the table is resolved while checking for
config validity. The code was mostly copied from the TCP code
with the exception that here we also count the HTTP request count
and rate by hand. Probably that something could be factored out in
the future.
It seems like tracking flags should be improved to mark each hook
which tracks a key so that we can have some check points where to
increase counters of the past if not done yet, a bit like is done
for TRACK_BACKEND.
From time to time it's useful to hash input data (scramble input, or
reduce the space needed in a stick table). This patch provides 3 simple
converters allowing use of the available hash functions to hash input
data. The output is an unsigned integer which can be passed into a header,
a log or used as an index for a stick table. One nice usage is to scramble
source IP addresses before logging when there are requirements to hide them.
Konstantin Romanenko reported a typo in the HTML documentation. The typo is
already present in the raw text version : the "shutdown sessions" command
should be "shutdown sessions server".
This one is not inherited from defaults into frontends nor backends
because it would create a confusion situation where it would be hard
to disable it (since both frontend and backend would enable it).
Daniel Dubovik reported an interesting bug showing that the request body
processing was still not 100% fixed. If a POST request contained short
enough data to be forwarded at once before trying to establish the
connection to the server, we had no way to correctly rewind the body.
The first visible case is that balancing on a header does not always work
on such POST requests since the header cannot be found. But there are even
nastier implications which are that http-send-name-header would apply to
the wrong location and possibly even affect part of the request's body
due to an incorrect rewinding.
There are two options to fix the problem :
- first one is to force the HTTP_MSG_F_WAIT_CONN flag on all hash-based
balancing algorithms and http-send-name-header, but there's always a
risk that any new algorithm forgets to set it ;
- the second option is to account for the amount of skipped data before
the connection establishes so that we always know the position of the
request's body relative to the buffer's origin.
The second option is much more reliable and fits very well in the spirit
of the past changes to fix forwarding. Indeed, at the moment we have
msg->sov which points to the start of the body before headers are forwarded
and which equals zero afterwards (so it still points to the start of the
body before forwarding data). A minor change consists in always making it
point to the start of the body even after data have been forwarded. It means
that it can get a negative value (so we need to change its type to signed)..
In order to avoid wrapping, we only do this as long as the other side of
the buffer is not connected yet.
Doing this definitely fixes the issues above for the requests. Since the
response cannot be rewound we don't need to perform any change there.
This bug was introduced/remained unfixed in 1.5-dev23 so the fix must be
backported to 1.5.
This patch adds two converters :
ltime(<format>[,<offset>])
utime(<format>[,<offset>])
Both use strftime() to emit the output string from an input date. ltime()
provides local time, while utime() provides the UTC time.
These new converters make it possible to look up any sample expression
in a table, and check whether an equivalent key exists or not, and if it
exists, to retrieve the associated data (eg: gpc0, request rate, etc...).
Till now it was only possible using tracking, but sometimes tracking is
not suited to only retrieving such counters, either because it's done too
early or because too many items need to be checked without necessarily
being tracked.
These converters all take a string on input, and then convert it again to
the table's type. This means that if an input sample is of type IPv4 and
the table is of type IP, it will first be converted to a string, then back
to an IP address. This is a limitation of the current design which does not
allow converters to declare that "any" type is supported on input. Since
strings are the only types which can be cast to any other one, this method
always works.
The following converters were added :
in_table, table_bytes_in_rate, table_bytes_out_rate, table_conn_cnt,
table_conn_cur, table_conn_rate, table_gpc0, table_gpc0_rate,
table_http_err_cnt, table_http_err_rate, table_http_req_cnt,
table_http_req_rate, table_kbytes_in, table_kbytes_out,
table_server_id, table_sess_cnt, table_sess_rate, table_trackers.
Listening to an abstract namespace socket is quite convenient but
comes with some drawbacks that must be clearly understood when the
socket is being listened to by multiple processes. The trouble is
that the socket cannot be rebound if a new process attempts a soft
restart and fails, so only one of the initially bound processes
will still be bound to it, the other ones will fail to rebind. For
most situations it's not an issue but it needs to be indicated.
With all the goodies supported by logformat, people find that the limit
of 1024 chars for log lines is too short. Some servers do not support
larger lines and can simply drop them, so changing the default value is
not always the best choice.
This patch takes a different approach. Log line length is specified per
log server on the "log" line, with a value between 80 and 65535. That
way it's possibly to satisfy all needs, even with some fat local servers
and small remote ones.
This new branch is based on 1.5.0, which 1.6-dev0 is 100% equivalent to.
The README has been updated to mention that it is a development branch.
Released version 1.6-dev0 with the following main changes :
- exact copy of 1.5.0
Released version 1.5.0 with the following main changes :
- MEDIUM: ssl: ignored file names ending as '.issuer' or '.ocsp'.
- MEDIUM: ssl: basic OCSP stapling support.
- MINOR: ssl/cli: Fix unapropriate comment in code on 'set ssl ocsp-response'
- MEDIUM: ssl: add 300s supported time skew on OCSP response update.
- MINOR: checks: mysql-check: Add support for v4.1+ authentication
- MEDIUM: ssl: Add the option to use standardized DH parameters >= 1024 bits
- MEDIUM: ssl: fix detection of ephemeral diffie-hellman key exchange by using the cipher description.
- MEDIUM: http: add actions "replace-header" and "replace-values" in http-req/resp
- MEDIUM: Break out check establishment into connect_chk()
- MEDIUM: Add port_to_str helper
- BUG/MEDIUM: fix ignored values for half-closed timeouts (client-fin and server-fin) in defaults section.
- BUG/MEDIUM: Fix unhandled connections problem with systemd daemon mode and SO_REUSEPORT.
- MINOR: regex: fix a little configuration memory leak.
- MINOR: regex: Create JIT compatible function that return match strings
- MEDIUM: regex: replace all standard regex function by own functions
- MEDIUM: regex: Remove null terminated strings.
- MINOR: regex: Use native PCRE API.
- MINOR: missing regex.h include
- DOC: Add Exim as Proxy Protocol implementer.
- BUILD: don't use type "uint" which is not portable
- BUILD: stats: workaround stupid and bogus -Werror=format-security behaviour
- BUG/MEDIUM: http: clear CF_READ_NOEXP when preparing a new transaction
- CLEANUP: http: don't clear CF_READ_NOEXP twice
- DOC: fix proxy protocol v2 decoder example
- DOC: fix remaining occurrences of "pattern extraction"
- MINOR: log: allow the HTTP status code to be logged even in TCP frontends
- MINOR: logs: don't limit HTTP header captures to HTTP frontends
- MINOR: sample: improve sample_fetch_string() to report partial contents
- MINOR: capture: extend the captures to support non-header keys
- MINOR: tcp: prepare support for the "capture" action
- MEDIUM: tcp: add a new tcp-request capture directive
- MEDIUM: session: allow shorter retry delay if timeout connect is small
- MEDIUM: session: don't apply the retry delay when redispatching
- MEDIUM: session: redispatch earlier when possible
- MINOR: config: warn when tcp-check rules are used without option tcp-check
- BUG/MINOR: connection: make proxy protocol v1 support the UNKNOWN protocol
- DOC: proxy protocol example parser was still wrong
- DOC: minor updates to the proxy protocol doc
- CLEANUP: connection: merge proxy proto v2 header and address block
- MEDIUM: connection: add support for proxy protocol v2 in accept-proxy
- MINOR: tools: add new functions to quote-encode strings
- DOC: clarify the CSV format
- MEDIUM: stats: report the last check and last agent's output on the CSV status
- MINOR: freq_ctr: introduce a new averaging method
- MEDIUM: session: maintain per-backend and per-server time statistics
- MEDIUM: stats: report per-backend and per-server time stats in HTML and CSV outputs
- BUG/MINOR: http: fix typos in previous patch
- DOC: remove the ultra-obsolete TODO file
- DOC: update roadmap
- DOC: minor updates to the README
- DOC: mention the maxconn limitations with the select poller
- DOC: commit a few old design thoughts files
These ones were design notes and ideas collected during the 1.5
development phase lying on my development machine. There might still
be some value in keeping them for future reference since they mention
certain corner cases.
Select()'s safe area is limited to 1024 FDs, and anything higher
than this will report "select: FAILED" on startup in debug mode,
so better document it.
The support is all based on static responses. This doesn't add any
request / response logic to HAProxy, but allows a way to update
information through the socket interface.
Currently certificates specified using "crt" or "crt-list" on "bind" lines
are loaded as PEM files.
For each PEM file, haproxy checks for the presence of file at the same path
suffixed by ".ocsp". If such file is found, support for the TLS Certificate
Status Request extension (also known as "OCSP stapling") is automatically
enabled. The content of this file is optional. If not empty, it must contain
a valid OCSP Response in DER format. In order to be valid an OCSP Response
must comply with the following rules: it has to indicate a good status,
it has to be a single response for the certificate of the PEM file, and it
has to be valid at the moment of addition. If these rules are not respected
the OCSP Response is ignored and a warning is emitted. In order to identify
which certificate an OCSP Response applies to, the issuer's certificate is
necessary. If the issuer's certificate is not found in the PEM file, it will
be loaded from a file at the same path as the PEM file suffixed by ".issuer"
if it exists otherwise it will fail with an error.
It is possible to update an OCSP Response from the unix socket using:
set ssl ocsp-response <response>
This command is used to update an OCSP Response for a certificate (see "crt"
on "bind" lines). Same controls are performed as during the initial loading of
the response. The <response> must be passed as a base64 encoded string of the
DER encoded response from the OCSP server.
Example:
openssl ocsp -issuer issuer.pem -cert server.pem \
-host ocsp.issuer.com:80 -respout resp.der
echo "set ssl ocsp-response $(base64 -w 10000 resp.der)" | \
socat stdio /var/run/haproxy.stat
This feature is automatically enabled on openssl 0.9.8h and above.
This work was performed jointly by Dirkjan Bussink of GitHub and
Emeric Brun of HAProxy Technologies.
This patch adds two new actions to http-request and http-response rulesets :
- replace-header : replace a whole header line, suited for headers
which might contain commas
- replace-value : replace a single header value, suited for headers
defined as lists.
The match consists in a regex, and the replacement string takes a log-format
and supports back-references.
The time statistics computed by previous patches are now reported in the
HTML stats in the tips related to the total sessions for backend and servers,
and as separate columns for the CSV stats.
Now that we can quote unsafe string, it becomes possible to dump the health
check responses on the CSV page as well. The two new fields are "last_chk"
and "last_agt".
Indicate that the text cells in the CSV format may contain quotes to
escape ambiguous texts. We don't have this case right now since we limit
the output, but it may happen in the future.
The "accept-proxy" statement of bind lines was still limited to version
1 of the protocol, while send-proxy-v2 is now available on the server
lines. This patch adds support for parsing v2 of the protocol on incoming
connections. The v2 header is automatically recognized so there is no
need for a new option.
This new directive captures the specified fetch expression, converts
it to text and puts it into the next capture slot. The capture slots
are shared with header captures so that it is possible to dump all
captures at once or selectively in logs and header processing.
The purpose is to permit logs to contain whatever payload is found in
a request, for example bytes at a fixed location or the SNI of forwarded
SSL traffic.
Similar to previous patches, HTTP header captures are performed when
a TCP frontend switches to an HTTP backend, but are not possible to
report. So let's relax the check to explicitly allow them to be present
in TCP frontends.
Log format is defined in the frontend, and some frontends may be chained to
an HTTP backend. Sometimes it's very convenient to be able to log the HTTP
status code of these HTTP backends. This status is definitely present in
the internal structures, it's just that we used to limit it to be used in
HTTP frontends. So let's simply relax the check to allow it to be used in
TCP frontends as well.
When no static DH parameters are specified, this patch makes haproxy
use standardized (rfc 2409 / rfc 3526) DH parameters with prime lenghts
of 1024, 2048, 4096 or 8192 bits for DHE key exchange. The size of the
temporary/ephemeral DH key is computed as the minimum of the RSA/DSA server
key size and the value of a new option named tune.ssl.default-dh-param.
Richard Russo reported that the example code in the PP spec is wrong
now that we slightly changed the format to merge <ver> and <cmd>. Also
rename the field <ver_cmd> to avoid any ambiguity on the usage.
