Google's boringssl doesn't have OPENSSL_VERSION_TEXT, SSLeay_version()
or SSLEAY_VERSION, in fact, it doesn't have any real versioning, its
just git-based.
So in case we build against boringssl, we can't access those values.
Instead, we just inform the user that HAProxy was build against
boringssl.
Signed-off-by: Lukas Tribus <luky-37@hotmail.com>
This patch remove all references of standard regex in haproxy. The last
remaining references are only in the regex.[ch] files.
In the file src/checks.c, the original function uses a "pmatch" array.
In fact this array is unused. This patch remove it.
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.
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.
Using the systemd daemon mode the parent doesn't exits but waits for
his childs without closing its listening sockets.
As linux 3.9 introduced a SO_REUSEPORT option (always enabled in
haproxy if available) this will give unhandled connections problems
after an haproxy reload with open connections.
The problem is that when on reload a new parent is started (-Ds
$oldchildspids), in haproxy.c main there's a call to start_proxies
that, without SO_REUSEPORT, should fail (as the old processes are
already listening) and so a SIGTOU is sent to old processes. On this
signal the old childs will call (in pause_listener) a shutdown() on
the listening fd. From my tests (if I understand it correctly) this
affects the in kernel file (so the listen is really disabled for all
the processes, also the parent).
Instead, with SO_REUSEPORT, the call to start_proxies doesn't fail and
so SIGTOU is never sent. Only SIGUSR1 is sent and the listen isn't
disabled for the parent but only the childs will stop listening (with
a call to close())
So, with SO_REUSEPORT, the old childs will close their listening
sockets but will wait for the current connections to finish or
timeout, and, as their parent has its listening socket open, the
kernel will schedule some connections on it. These connections will
never be accepted by the parent as it's in the waitpid loop.
This fix will close all the listeners on the parent before entering the
waitpid loop.
Signed-off-by: Simone Gotti <simone.gotti@gmail.com>
Servers used to have 3 flags to store a state, now they have 4 states
instead. This avoids lots of confusion for the 4 remaining undefined
states.
The encoding from the previous to the new states can be represented
this way :
SRV_STF_RUNNING
| SRV_STF_GOINGDOWN
| | SRV_STF_WARMINGUP
| | |
0 x x SRV_ST_STOPPED
1 0 0 SRV_ST_RUNNING
1 0 1 SRV_ST_STARTING
1 1 x SRV_ST_STOPPING
Note that the case where all bits were set used to exist and was randomly
dealt with. For example, the task was not stopped, the throttle value was
still updated and reported in the stats and in the http_server_state header.
It was the same if the server was stopped by the agent or for maintenance.
It's worth noting that the internal function names are still quite confusing.
Till now, the server's state and flags were all saved as a single bit
field. It causes some difficulties because we'd like to have an enum
for the state and separate flags.
This commit starts by splitting them in two distinct fields. The first
one is srv->state (with its counter-part srv->prev_state) which are now
enums, but which still contain bits (SRV_STF_*).
The flags now lie in their own field (srv->flags).
The function srv_is_usable() was updated to use the enum as input, since
it already used to deal only with the state.
Note that currently, the maintenance mode is still in the state for
simplicity, but it must move as well.
Some consistency checks cannot be performed between frontends, backends
and peers at the moment because there is no way to check for intersection
between processes bound to some processes when the number of processes is
higher than the number of bits in a word.
So first, let's limit the number of processes to the machine's word size.
This means nbproc will be limited to 32 on 32-bit machines and 64 on 64-bit
machines. This is far more than enough considering that configs rarely go
above 16 processes due to scalability and management issues, so 32 or 64
should be fine.
This way we'll ensure we can always build a mask of all the processes a
section is bound to.
Since it became possible to use log-format expressions in use_backend,
having a mandatory condition becomes annoying because configurations
are full of "if TRUE". Let's relax the check to accept no condition
like many other keywords (eg: redirect).
When compiled with USE_GETADDRINFO, make sure we use getaddrinfo(3) to
perform name lookups. On default dual-stack setups this will change the
behavior of using IPv6 first. Global configuration option
'nogetaddrinfo' can be used to revert to deprecated gethostbyname(3).
The pattern reference are stored with two identifiers: the unique_id and
the reference.
The reference identify a file. Each file with the same name point to the
same reference. We can register many times one file. If the file is
modified, all his dependencies are also modified. The reference can be
used with map or acl.
The unique_id identify inline acl. The unique id is unique for each acl.
You cannot force the same id in the configuration file, because this
repport an error.
The format of the acl and map listing through the "socket" has changed
for displaying these new ids.
Sometimes it can be useful to generate a random value, at least
for debugging purposes, but also to take routing decisions or to
pass such a value to a backend server.
The ability to globally override the default client and server cipher
suites has been requested multiple times since the introduction of SSL.
This commit adds two new keywords to the global section for this :
- ssl-default-bind-ciphers
- ssl-default-server-ciphers
It is still possible to preset them at build time by setting the macros
LISTEN_DEFAULT_CIPHERS and CONNECT_DEFAULT_CIPHERS.
The new tune.idletimer value allows one to set a different value for
idle stream detection. The default value remains set to one second.
It is possible to disable it using zero, and to change the default
value at build time using DEFAULT_IDLE_TIMER.
Released version 1.5-dev22 with the following main changes :
- MEDIUM: tcp-check new feature: connect
- MEDIUM: ssl: Set verify 'required' as global default for servers side.
- MINOR: ssl: handshake optim for long certificate chains.
- BUG/MINOR: pattern: pattern comparison executed twice
- BUG/MEDIUM: map: segmentation fault with the stats's socket command "set map ..."
- BUG/MEDIUM: pattern: Segfault in binary parser
- MINOR: pattern: move functions for grouping pat_match_* and pat_parse_* and add documentation.
- MINOR: standard: The parse_binary() returns the length consumed and his documentation is updated
- BUG/MINOR: payload: the patterns of the acl "req.ssl_ver" are no parsed with the good function.
- BUG/MEDIUM: pattern: "pat_parse_dotted_ver()" set bad expect_type.
- BUG/MINOR: sample: The c_str2int converter does not fail if the entry is not an integer
- BUG/MEDIUM: http/auth: Sometimes the authentication credentials can be mix between two requests
- MINOR: doc: Bad cli function name.
- MINOR: http: smp_fetch_capture_header_* fetch captured headers
- BUILD: last release inadvertently prepended a "+" in front of the date
- BUG/MEDIUM: stream-int: fix the keep-alive idle connection handler
- BUG/MEDIUM: backend: do not re-initialize the connection's context upon reuse
- BUG: Revert "OPTIM/MEDIUM: epoll: fuse active events into polled ones during polling changes"
- BUG/MINOR: checks: successful check completion must not re-enable MAINT servers
- MINOR: http: try to stick to same server after status 401/407
- BUG/MINOR: http: always disable compression on HTTP/1.0
- OPTIM: poll: restore polling after a poll/stop/want sequence
- OPTIM: http: don't stop polling for read on the client side after a request
- BUG/MEDIUM: checks: unchecked servers could not be enabled anymore
- BUG/MEDIUM: stats: the web interface must check the tracked servers before enabling
- BUG/MINOR: channel: CHN_INFINITE_FORWARD must be unsigned
- BUG/MINOR: stream-int: do not clear the owner upon unregister
- MEDIUM: stats: add support for HTTP keep-alive on the stats page
- BUG/MEDIUM: stats: fix HTTP/1.0 breakage introduced in previous patch
- Revert "MEDIUM: stats: add support for HTTP keep-alive on the stats page"
- MAJOR: channel: add a new flag CF_WAKE_WRITE to notify the task of writes
- OPTIM: session: set the READ_DONTWAIT flag when connecting
- BUG/MINOR: http: don't clear the SI_FL_DONT_WAKE flag between requests
- MINOR: session: factor out the connect time measurement
- MEDIUM: session: prepare to support earlier transitions to the established state
- MEDIUM: stream-int: make si_connect() return an established state when possible
- MINOR: checks: use an inline function for health_adjust()
- OPTIM: session: put unlikely() around the freewheeling code
- MEDIUM: config: report a warning when multiple servers have the same name
- BUG: Revert "OPTIM: poll: restore polling after a poll/stop/want sequence"
- BUILD/MINOR: listener: remove a glibc warning on accept4()
- BUG/MAJOR: connection: fix mismatch between rcv_buf's API and usage
- BUILD: listener: fix recent accept4() again
- BUG/MAJOR: ssl: fix breakage caused by recent fix abf08d9
- BUG/MEDIUM: polling: ensure we update FD status when there's no more activity
- MEDIUM: listener: fix polling management in the accept loop
- MINOR: protocol: improve the proto->drain() API
- MINOR: connection: add a new conn_drain() function
- MEDIUM: tcp: report in tcp_drain() that lingering is already disabled on close
- MEDIUM: connection: update callers of ctrl->drain() to use conn_drain()
- MINOR: connection: add more error codes to report connection errors
- MEDIUM: tcp: report connection error at the connection level
- MEDIUM: checks: make use of chk_report_conn_err() for connection errors
- BUG/MEDIUM: unique_id: HTTP request counter is not stable
- DOC: fix misleading information about SIGQUIT
- BUG/MAJOR: fix freezes during compression
- BUG/MEDIUM: stream-interface: don't wake the task up before end of transfer
- BUILD: fix VERDATE exclusion regex
- CLEANUP: polling: rename "spec_e" to "state"
- DOC: add a diagram showing polling state transitions
- REORG: polling: rename "spec_e" to "state" and "spec_p" to "cache"
- REORG: polling: rename "fd_spec" to "fd_cache"
- REORG: polling: rename the cache allocation functions
- REORG: polling: rename "fd_process_spec_events()" to "fd_process_cached_events()"
- MAJOR: polling: rework the whole polling system
- MAJOR: connection: remove the CO_FL_WAIT_{RD,WR} flags
- MEDIUM: connection: remove conn_{data,sock}_poll_{recv,send}
- MEDIUM: connection: add check for readiness in I/O handlers
- MEDIUM: stream-interface: the polling flags must always be updated in chk_snd_conn
- MINOR: stream-interface: no need to call fd_stop_both() on error
- MEDIUM: connection: no need to recheck FD state
- CLEANUP: connection: use conn_ctrl_ready() instead of checking the flag
- CLEANUP: connection: use conn_xprt_ready() instead of checking the flag
- CLEANUP: connection: fix comments in connection.h to reflect new behaviour.
- OPTIM: raw-sock: don't speculate after a short read if polling is enabled
- MEDIUM: polling: centralize polled events processing
- MINOR: polling: create function fd_compute_new_polled_status()
- MINOR: cli: add more information to the "show info" output
- MEDIUM: listener: add support for limiting the session rate in addition to the connection rate
- MEDIUM: listener: apply a limit on the session rate submitted to SSL
- REORG: stats: move the stats socket states to dumpstats.c
- MINOR: cli: add the new "show pools" command
- BUG/MEDIUM: counters: flush content counters after each request
- BUG/MEDIUM: counters: fix stick-table entry leak when using track-sc2 in connection
- MINOR: tools: add very basic support for composite pointers
- MEDIUM: counters: stop relying on session flags at all
- BUG/MINOR: cli: fix missing break in command line parser
- BUG/MINOR: config: correctly report when log-format headers require HTTP mode
- MAJOR: http: update connection mode configuration
- MEDIUM: http: make keep-alive + httpclose be passive mode
- MAJOR: http: switch to keep-alive mode by default
- BUG/MEDIUM: http: fix regression caused by recent switch to keep-alive by default
- BUG/MEDIUM: listener: improve detection of non-working accept4()
- BUILD: listener: add fcntl.h and unistd.h
- BUG/MINOR: raw_sock: correctly set the MSG_MORE flag
If no CA file specified on a server line, the config parser will show an error.
Adds an cmdline option '-dV' to re-set verify 'none' as global default on
servers side (previous behavior).
Also adds 'ssl-server-verify' global statement to set global default to
'none' or 'required'.
WARNING: this changes the default verify mode from "none" to "required" on
the server side, and it *will* break insecure setups.
It's becoming increasingly difficult to ignore unwanted function returns in
debug code with gcc. Now even when you try to work around it, it suggests a
way to write your code differently. For example :
src/frontend.c:187:65: warning: if statement has empty body [-Wempty-body]
if (write(1, trash.str, trash.len) < 0) /* shut gcc warning */;
^
src/frontend.c:187:65: note: put the semicolon on a separate line to silence this warning
1 warning generated.
This is totally unacceptable, this code already had to be written this way
to shut it up in earlier versions. And now it comments the form ? What's the
purpose of the C language if you can't write anymore the code that does what
you want ?
Emeric proposed to just keep a global variable to drain such useless results
so that gcc stops complaining all the time it believes people who write code
are monkeys. The solution is acceptable because the useless assignment is done
only in debug code so it will not impact performance. This patch implements
this, until gcc becomes even "smarter" to detect that we tried to cheat.
We handle "http-request redirect" with a log-format string now, but we
leave "redirect" unaffected.
Note that the control of the special "/" case is move from the runtime
execution to the configuration parsing. If the format rule list is
empty, the build_logline() function does nothing.
Allow an auxiliary agent check to be run independently of the
regular a regular health check. This is enabled by the agent-check
server setting.
The agent-port, which specifies the TCP port to use for the agent's
connections, is required.
The agent-inter, which specifies the interval between agent checks and
timeout of agent checks, is optional. If not set the value for regular
checks is used.
e.g.
server web1_1 127.0.0.1:80 check agent-port 10000
If either the health or agent check determines that a server is down
then it is marked as being down, otherwise it is marked as being up.
An agent health check performed by opening a TCP socket and reading an
ASCII string. The string should have one of the following forms:
* An ASCII representation of an positive integer percentage.
e.g. "75%"
Values in this format will set the weight proportional to the initial
weight of a server as configured when haproxy starts.
* The string "drain".
This will cause the weight of a server to be set to 0, and thus it
will not accept any new connections other than those that are
accepted via persistence.
* The string "down", optionally followed by a description string.
Mark the server as down and log the description string as the reason.
* The string "stopped", optionally followed by a description string.
This currently has the same behaviour as "down".
* The string "fail", optionally followed by a description string.
This currently has the same behaviour as "down".
Signed-off-by: Simon Horman <horms@verge.net.au>
Both static-rr and hash with type map-based call init_server_map() to allocate
server map, so the server map should be freed while doing cleanup if one of
the above load balance algorithms is used.
Signed-off-by: Godbach <nylzhaowei@gmail.com>
[wt: removed the unneeded "if" before the free]
Both fdinfo and fdtab are allocated memory in init() while haproxy is starting,
but only fdtab is freed in deinit(), fdinfo should also be freed.
Signed-off-by: Godbach <nylzhaowei@gmail.com>
FreeBSD uses (IPPROTO_IP, IP_BINDANY) and (IPPROTO_IPV6, IPV6_BINDANY)
to enable transparent proxy on a socket.
This patch adds support for the relevant setsockopt() calls.
This patch does not change the logic of the code, it only changes the
way OS-specific defines are tested.
At the moment the transparent proxy code heavily depends on Linux-specific
defines. This first patch introduces a new define "CONFIG_HAP_TRANSPARENT"
which is set every time the defines used by transparent proxy are present.
This also means that with an up-to-date libc, it should not be necessary
anymore to force CONFIG_HAP_LINUX_TPROXY during the build, as the flags
will automatically be detected.
The CTTPROXY flags still remain separate because this older API doesn't
work the same way.
A new line has been added in the version output for haproxy -vv to indicate
what transparent proxy support is available.
It happens that openssl's API can differ between versions, causing some
serious trouble if the version used at runtime is not the same as used
for building.
Now we report the two versions separately along with a warning if the
version differs (except the patch version).
Since ea68d36 we show whether JIT is enabled, based on the USE-flag
(USE_PCRE_JIT). This is too naive; libpcre may be built without JIT
support (which is the default).
Fix this by calling pcre_config(), which has the accurate information
we are looking for.
Example of a libpcre without JIT support after this patch:
> ./haproxy -vv | grep PCRE
> OPTIONS = USE_STATIC_PCRE=1 USE_PCRE_JIT=1
> Built with PCRE version : 8.32 2012-11-30
> PCRE library supports JIT : no (libpcre build without JIT?)
Commit a4312fa2 merged into dev18 improved log-format management by
processing "log-format" and "unique-id-format" where they were declared,
so that the faulty args could be reported with their correct line numbers.
Unfortunately, the log-format parser considers the proxy mode (TCP/HTTP)
and now if the directive is set before the "mode" statement, it can be
rejected and report warnings.
So we really need to parse these directives at the end of a section at
least. Right now we do not have an "end of section" event, so we need
to store the file name and line number for each of these directives,
and take care of them at the end.
One of the benefits is that now the line numbers can be inherited from
the line passing "option httplog" even if it's in a defaults section.
Future improvements should be performed to report line numbers in every
log-format processed by the parser.
haproxy -vv shows build informations about USE flags and lib versions.
This patch introduces informations about PCRE and the new JIT feature.
It also makes USE_PCRE_JIT=1 appear in the haproxy -vv "OPTIONS".
This is useful since with the introduction of JIT we will see libpcre
related issues.
Released version 1.5-dev18 with the following main changes :
- DOCS: Add explanation of intermediate certs to crt paramater
- DOC: typo and minor fixes in compression paragraph
- MINOR: config: http-request configuration error message misses new keywords
- DOC: minor typo fix in documentation
- BUG/MEDIUM: ssl: ECDHE ciphers not usable without named curve configured.
- MEDIUM: ssl: add bind-option "strict-sni"
- MEDIUM: ssl: add mapping from SNI to cert file using "crt-list"
- MEDIUM: regex: Use PCRE JIT in acl
- DOC: simplify bind option "interface" explanation
- DOC: tfo: bump required kernel to linux-3.7
- BUILD: add explicit support for TFO with USE_TFO
- MEDIUM: New cli option -Ds for systemd compatibility
- MEDIUM: add haproxy-systemd-wrapper
- MEDIUM: add systemd service
- BUG/MEDIUM: systemd-wrapper: don't leak zombie processes
- BUG/MEDIUM: remove supplementary groups when changing gid
- BUG/MEDIUM: config: fix parser crash with bad bind or server address
- BUG/MINOR: Correct logic in cut_crlf()
- CLEANUP: checks: Make desc argument to set_server_check_status const
- CLEANUP: dumpstats: Make cli_release_handler() static
- MEDIUM: server: Break out set weight processing code
- MEDIUM: server: Allow relative weights greater than 100%
- MEDIUM: server: Tighten up parsing of weight string
- MEDIUM: checks: Add agent health check
- BUG/MEDIUM: ssl: openssl 0.9.8 doesn't open /dev/random before chroot
- BUG/MINOR: time: frequency counters are not totally accurate
- BUG/MINOR: http: don't process abortonclose when request was sent
- BUG/MEDIUM: stream_interface: don't close outgoing connections on shutw()
- BUG/MEDIUM: checks: ignore late resets after valid responses
- DOC: fix bogus recommendation on usage of gpc0 counter
- BUG/MINOR: http-compression: lookup Cache-Control in the response, not the request
- MINOR: signal: don't block SIGPROF by default
- OPTIM: epoll: make use of EPOLLRDHUP
- OPTIM: splice: detect shutdowns and avoid splice() == 0
- OPTIM: splice: assume by default that splice is working correctly
- BUG/MINOR: log: temporary fix for lost SSL info in some situations
- BUG/MEDIUM: peers: only the last peers section was used by tables
- BUG/MEDIUM: config: verbosely reject peers sections with multiple local peers
- BUG/MINOR: epoll: use a fix maxevents argument in epoll_wait()
- BUG/MINOR: config: fix improper check for failed memory alloc in ACL parser
- BUG/MINOR: config: free peer's address when exiting upon parsing error
- BUG/MINOR: config: check the proper variable when parsing log minlvl
- BUG/MEDIUM: checks: ensure the health_status is always within bounds
- BUG/MINOR: cli: show sess should always validate s->listener
- BUG/MINOR: log: improper NULL return check on utoa_pad()
- CLEANUP: http: remove a useless null check
- CLEANUP: tcp/unix: remove useless NULL check in {tcp,unix}_bind_listener()
- BUG/MEDIUM: signal: signal handler does not properly check for signal bounds
- BUG/MEDIUM: tools: off-by-one in quote_arg()
- BUG/MEDIUM: uri_auth: missing NULL check and memory leak on memory shortage
- BUG/MINOR: unix: remove the 'level' field from the ux struct
- CLEANUP: http: don't try to deinitialize http compression if it fails before init
- CLEANUP: config: slowstart is never negative
- CLEANUP: config: maxcompcpuusage is never negative
- BUG/MEDIUM: log: emit '-' for empty fields again
- BUG/MEDIUM: checks: fix a race condition between checks and observe layer7
- BUILD: fix a warning emitted by isblank() on non-c99 compilers
- BUILD: improve the makefile's support for libpcre
- MEDIUM: halog: add support for counting per source address (-ic)
- MEDIUM: tools: make str2sa_range support all address syntaxes
- MEDIUM: config: make use of str2sa_range() instead of str2sa()
- MEDIUM: config: use str2sa_range() to parse server addresses
- MEDIUM: config: use str2sa_range() to parse peers addresses
- MINOR: tests: add a config file to ease address parsing tests.
- MINOR: ssl: add a global tunable for the max SSL/TLS record size
- BUG/MINOR: syscall: fix NR_accept4 system call on sparc/linux
- BUILD/MINOR: syscall: add definition of NR_accept4 for ARM
- MINOR: config: report missing peers section name
- BUG/MEDIUM: tools: fix bad character handling in str2sa_range()
- BUG/MEDIUM: stats: never apply "unix-bind prefix" to the global stats socket
- MINOR: tools: prepare str2sa_range() to return an error message
- BUG/MEDIUM: checks: don't call connect() on unsupported address families
- MINOR: tools: prepare str2sa_range() to accept a prefix
- MEDIUM: tools: make str2sa_range() parse unix addresses too
- MEDIUM: config: make str2listener() use str2sa_range() to parse unix addresses
- MEDIUM: config: use a single str2sa_range() call to parse bind addresses
- MEDIUM: config: use str2sa_range() to parse log addresses
- CLEANUP: tools: remove str2sun() which is not used anymore.
- MEDIUM: config: add complete support for str2sa_range() in dispatch
- MEDIUM: config: add complete support for str2sa_range() in server addr
- MEDIUM: config: add complete support for str2sa_range() in 'server'
- MEDIUM: config: add complete support for str2sa_range() in 'peer'
- MEDIUM: config: add complete support for str2sa_range() in 'source' and 'usesrc'
- CLEANUP: minor cleanup in str2sa_range() and str2ip()
- CLEANUP: config: do not use multiple errmsg at once
- MEDIUM: tools: support specifying explicit address families in str2sa_range()
- MAJOR: listener: support inheriting a listening fd from the parent
- MAJOR: tools: support environment variables in addresses
- BUG/MEDIUM: http: add-header should not emit "-" for empty fields
- BUG/MEDIUM: config: ACL compatibility check on "redirect" was wrong
- BUG/MEDIUM: http: fix another issue caused by http-send-name-header
- DOC: mention the new HTTP 307 and 308 redirect statues
- MEDIUM: poll: do not use FD_* macros anymore
- BUG/MAJOR: ev_select: disable the select() poller if maxsock > FD_SETSIZE
- BUG/MINOR: acl: ssl_fc_{alg,use}_keysize must parse integers, not strings
- BUG/MINOR: acl: ssl_c_used, ssl_fc{,_has_crt,_has_sni} take no pattern
- BUILD: fix usual isdigit() warning on solaris
- BUG/MEDIUM: tools: vsnprintf() is not always reliable on Solaris
- OPTIM: buffer: remove one jump in buffer_count()
- OPTIM: http: improve branching in chunk size parser
- OPTIM: http: optimize the response forward state machine
- BUILD: enable poll() by default in the makefile
- BUILD: add explicit support for Mac OS/X
- BUG/MAJOR: http: use a static storage for sample fetch context
- BUG/MEDIUM: ssl: improve error processing and reporting in ssl_sock_load_cert_list_file()
- BUG/MAJOR: http: fix regression introduced by commit a890d072
- BUG/MAJOR: http: fix regression introduced by commit d655ffe
- BUG/CRITICAL: using HTTP information in tcp-request content may crash the process
- MEDIUM: acl: remove flag ACL_MAY_LOOKUP which is improperly used
- MEDIUM: samples: use new flags to describe compatibility between fetches and their usages
- MINOR: log: indicate it when some unreliable sample fetches are logged
- MEDIUM: samples: move payload-based fetches and ACLs to their own file
- MINOR: backend: rename sample fetch functions and declare the sample keywords
- MINOR: frontend: rename sample fetch functions and declare the sample keywords
- MINOR: listener: rename sample fetch functions and declare the sample keywords
- MEDIUM: http: unify acl and sample fetch functions
- MINOR: session: rename sample fetch functions and declare the sample keywords
- MAJOR: acl: make all ACLs reference the fetch function via a sample.
- MAJOR: acl: remove the arg_mask from the ACL definition and use the sample fetch's
- MAJOR: acl: remove fetch argument validation from the ACL struct
- MINOR: http: add new direction-explicit sample fetches for headers and cookies
- MINOR: payload: add new direction-explicit sample fetches
- CLEANUP: acl: remove ACL hooks which were never used
- MEDIUM: proxy: remove acl_requires and just keep a flag "http_needed"
- MINOR: sample: provide a function to report the name of a sample check point
- MAJOR: acl: convert all ACL requires to SMP use+val instead of ->requires
- CLEANUP: acl: remove unused references to ACL_USE_*
- MINOR: http: replace acl_parse_ver with acl_parse_str
- MEDIUM: acl: move the ->parse, ->match and ->smp fields to acl_expr
- MAJOR: acl: add option -m to change the pattern matching method
- MINOR: acl: remove the use_count in acl keywords
- MEDIUM: acl: have a pointer to the keyword name in acl_expr
- MEDIUM: acl: support using sample fetches directly in ACLs
- MEDIUM: http: remove val_usr() to validate user_lists
- MAJOR: sample: maintain a per-proxy list of the fetch args to resolve
- MINOR: ssl: add support for the "alpn" bind keyword
- MINOR: http: status code 303 is HTTP/1.1 only
- MEDIUM: http: implement redirect 307 and 308
- MINOR: http: status 301 should not be marked non-cacheable
ACL fetch functions used to directly reference a fetch function. Now
that all ACL fetches have their sample fetches equivalent, we can make
ACLs reference a sample fetch keyword instead.
In order to simplify the code, a sample keyword name may be NULL if it
is the same as the ACL's, which is the most common case.
A minor change appeared, http_auth always expects one argument though
the ACL allowed it to be missing and reported as such afterwards, so
fix the ACL to match this. This is not really a bug.
Some recent glibc updates have added controls on FD_SET/FD_CLR/FD_ISSET
that crash the program if it tries to use a file descriptor larger than
FD_SETSIZE.
For this reason, we now control the compatibility between global.maxsock
and FD_SETSIZE, and refuse to use select() if there too many FDs are
expected to be used. Note that on Solaris, FD_SETSIZE is already forced
to 65536, and that FreeBSD and OpenBSD allow it to be redefined, though
this is not needed thanks to kqueue which is much more efficient.
In practice, since poll() is enabled on all targets, it should not cause
any problem, unless it is explicitly disabled.
This change must be backported to 1.4 because the crashes caused by glibc
have already been reported on this version.
This patch adds a new option "-Ds" which is exactly like "-D", but instead of
forking n times to get n jobs running and then exiting, prefers to wait for all the
children it just created. With this done, haproxy becomes more systemd-compliant,
without changing anything for other systems.
Signed-off-by: Marc-Antoine Perennou <Marc-Antoine@Perennou.com>
Without it, haproxy will retain the group membership of root, which may
give more access than intended to the process. For example, haproxy would
still be in the wheel group on Fedora 18, as seen with :
# haproxy -f /etc/haproxy/haproxy.cfg
# ps a -o pid,user,group,command | grep hapr
3545 haproxy haproxy haproxy -f /etc/haproxy/haproxy.cfg
4356 root root grep --color=auto hapr
# grep Group /proc/3545/status
Groups: 0 1 2 3 4 6 10
# getent group wheel
wheel❌10:root,misc
[WT: The issue has been investigated by independent security research team
and realized by itself not being able to allow security exploitation.
Additionally, dropping groups is not allowed to unprivileged users,
though this mode of deployment is quite common. Thus a warning is
emitted in this case to inform the user. The fix could be backported
into all supported versions as the issue has always been there. ]
At the moment, we need trash chunks almost everywhere and the only
correctly implemented one is in the sample code. Let's move this to
the chunks so that all other places can use this allocator.
Additionally, the get_trash_chunk() function now really returns two
different chunks. Previously it used to always overwrite the same
chunk and point it to a different buffer, which was a bit tricky
because it's not obvious that two consecutive results do alias each
other.
global.tune.maxaccept was used for all listeners. This becomes really not
convenient when some listeners are bound to a single process and other ones
are bound to many processes.
Now we change the principle : we count the number of processes a listener
is bound to, and apply the maxaccept either entirely if there is a single
process, or divided by twice the number of processes in order to maintain
fairness.
The default limit has also been increased from 32 to 64 as it appeared that
on small machines, 32 was too low to achieve high connection rates.
The new "cpu-map" directive allows one to assign the CPU sets that
a process is allowed to bind to. This is useful in combination with
the "nbproc" and "bind-process" directives.
The support is implicit on Linux 2.6.28 and above.
Having nbproc preinitialized to zero is really annoying as it prevents
some checks from being correctly performed. Also the check to prevent
nbproc from being redefined is totally useless, so let's preset it to
1 and remove the test.
This is done by passing the default value to SSLCACHESIZE in sessions.
User can use tune.sslcachesize to change this value.
By default, it is set to 20000 sessions as openssl internal cache size.
Currently, a session entry size is between 592 and 616 bytes depending on the arch.
Now that all pollers make use of speculative I/O, there is no point
having two epoll implementations, so replace epoll with the sepoll code
and remove sepoll which has just become the standard epoll method.
Compression algorithms are not always supported depending on build options.
"haproxy -vv" now reports if zlib is supported and lists compression algorithms
also supported.
