The current documentation of the bind option "interface" can be misleading
(as seen on the ML recently).
This patch tries to address misunderstandings by :
- avoiding the words listen or bind in the behavior description, using
"restrict to interface" instead
- using a different sentence construction (partially stolen from
"man 7 socket": SO_BINDTODEVICE)
- "defragmentation": moving behavior related explanations to the beginning
and restrictions, use-cases and requirements to the end.
This new option ensures that there is no possible fallback to a default
certificate if the client does not provide an SNI which is explicitly
handled by a certificate.
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
wheelâŒ10: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. ]
The doc pretends that src_inc_gpc0 may be used alone without an integer
match, but this is false and has always been since its introduction in
1.5-dev1. If the ACL is called, the increment will be used, the value
returned, but it will be matched against no value so the resulting ACL
will never be true and the condition will not be met.
This means that the following config :
acl abuser src -f abusers.lst
acl blacklist src_inc_gpc0
tcp-request connection reject if abuser blacklist
Will never reject the connection and must be fixed this way :
acl abuser src -f abusers.lst
acl blacklist src_inc_gpc0 gt 0
tcp-request connection reject if abuser blacklist
Note that clr_gpc0 is trickier, as it returns the previous value which
might also be zero. Thus it's suggested to compare it against any positive
value including zero :
tcp-request connection accept if { src_clr_gpc0 ge 0 }
Some arguments were missing on the sc1/sc2 forms of most ACLs including
gpc0, so this has been fixed too.
Released version 1.5-dev17 with the following main changes :
- MINOR: ssl: Setting global tune.ssl.cachesize value to 0 disables SSL session cache.
- BUG/MEDIUM: stats: fix stats page regression introduced by commit 20b0de5
- BUG/MINOR: stats: last fix was still wrong
- BUG/MINOR: stats: http-request rules still don't cope with stats
- BUG/MINOR: http: http-request add-header emits a corrupted header
- BUG/MEDIUM: stats: disable request analyser when processing POST or HEAD
- BUG/MINOR: log: make log-format, unique-id-format and add-header more independant
- BUILD: log: unused variable svid
- CLEANUP: http: rename the misleading http_check_access_rule
- MINOR: http: move redirect rule processing to its own function
- REORG: config: move the http redirect rule parser to proto_http.c
- MEDIUM: http: add support for "http-request redirect" rules
- MEDIUM: http: add support for "http-request tarpit" rule
The "reqtarpit" rule is not very handy to use. Now that we have more
flexibility with "http-request", let's finally make the tarpit rules
usable there.
There are still semantical differences between apply_filters_to_request()
and http_req_get_intercept_rule() because the former updates the counters
while the latter does not. So we currently have almost similar code leafs
for similar conditions, but this should be cleaned up later.
These are exactly the same as the classic redirect rules except
that they can be interleaved with other http-request rules for
more flexibility.
The redirect parser should probably be changed to stop at the condition
so that the caller puts its own condition pointer. At the moment, the
redirect rule and condition are parsed at once by build_redirect_rule()
and the condition is assigned to the http_req_rule.
Released version 1.5-dev16 with the following main changes :
- BUG/MEDIUM: ssl: Prevent ssl error from affecting other connections.
- BUG/MINOR: ssl: error is not reported if it occurs simultaneously with peer close detection.
- MINOR: ssl: add fetch and acl "ssl_c_used" to check if current SSL session uses a client certificate.
- MINOR: contrib: make the iprange tool grep for addresses
- CLEANUP: polling: gcc doesn't always optimize constants away
- OPTIM: poll: optimize fd management functions for low register count CPUs
- CLEANUP: poll: remove a useless double-check on fdtab[fd].owner
- OPTIM: epoll: use a temp variable for intermediary flag computations
- OPTIM: epoll: current fd does not count as a new one
- BUG/MINOR: poll: the I/O handler was called twice for polled I/Os
- MINOR: http: make resp_ver and status ACLs check for the presence of a response
- BUG/MEDIUM: stream-interface: fix possible stalls during transfers
- BUG/MINOR: stream_interface: don't return when the fd is already set
- BUG/MEDIUM: connection: always update connection flags prior to computing polling
- CLEANUP: buffer: use buffer_empty() instead of buffer_len()==0
- BUG/MAJOR: stream_interface: fix occasional data transfer freezes
- BUG/MEDIUM: stream_interface: fix another case where the reader might not be woken up
- BUG/MINOR: http: don't abort client connection on premature responses
- BUILD: no need to clean up when making git-tar
- MINOR: log: add a tag for amount of bytes uploaded from client to server
- BUG/MEDIUM: log: fix possible segfault during config parsing
- MEDIUM: log: change a few log tokens to make them easier to remember
- BUG/MINOR: log: add_to_logformat_list() used the wrong constants
- MEDIUM: log-format: make the format parser more robust and more extensible
- MINOR: sample: support cast from bool to string
- MINOR: samples: add a function to fetch and convert any sample to a string
- MINOR: log: add lf_text_len
- MEDIUM: log: add the ability to include samples in logs
- REORG: stats: massive code reorg and cleanup
- REORG: stats: move the HTTP header injection to proto_http
- REORG: stats: functions are now HTTP/CLI agnostic
- BUG/MINOR: log: fix regression introduced by commit 8a3f52
- MINOR: chunks: centralize the trash chunk allocation
- MEDIUM: stats: use hover boxes instead of title to report details
- MEDIUM: stats: use multi-line tips to display detailed counters
- MINOR: tools: simplify the use of the int to ascii macros
- MINOR: stats: replace STAT_FMT_CSV with STAT_FMT_HTML
- MINOR: http: prepare to support more http-request actions
- MINOR: log: make parse_logformat_string() take a const char *
- MEDIUM: http: add http-request 'add-header' and 'set-header' to build headers
These two new statements allow to pass information extracted from the request
to the server. It's particularly useful for passing SSL information to the
server, but may be used for various other purposes such as combining headers
together to emulate internal variables.
Using %[expression] it becomes possible to make the log engine fetch
some samples from the request or the response and provide them in the
logs. Note that this feature is still limited, it does not yet allow
to apply converters, to limit the output length, nor to specify the
direction which should be fetched when a fetch function works in both
directions.
However it's quite convenient to log SSL information or to include some
information that are used in stick tables.
It is worth noting that this has been done in the generic log format
handler, which means that the same information may be used to build the
unique-id header and to pass the information to a backend server.
Some log tokens have evolved in a way that is not completely logical.
For example, frontend tokens sometimes begin with an 'f' and sometimes
with an 'F'. Same for backend and server.
So let's change a few cases without disrupting compatibility with existing
setups :
Bi => bi
Bp => bp
Ci => ci
Cp => cp
Fi => fi
Fp => fp
Si => si
Sp => sp
cc => CC
cs => CS
st => ST
The old ones are still supported but deprecated and will be unsupported by
the 1.5 release. However, a warning message is emitted when they're encounterd
and it indicates what token should be used to replace them.
Released version 1.5-dev15 with the following main changes :
- DOC: add a few precisions on compression
- BUG/MEDIUM: ssl: Fix handshake failure on session resumption with client cert.
- BUG/MINOR: ssl: One free session in cache remains unused.
- BUG/MEDIUM: ssl: first outgoing connection would fail with {ca,crt}-ignore-err
- MEDIUM: ssl: manage shared cache by blocks for huge sessions.
- MINOR: acl: add fetch for server session rate
- BUG/MINOR: compression: Content-Type is case insensitive
- MINOR: compression: disable on multipart or status != 200
- BUG/MINOR: http: don't report client aborts as server errors
- MINOR: stats: compute the ratio of compressed response based on 2xx responses
- MINOR: http: factor out the content-type checks
- BUG/MAJOR: stats: correctly check for a possible divide error when showing compression ratios
- BUILD: ssl: OpenSSL 0.9.6 has no renegociation
- BUG/MINOR: http: disable compression when message has no body
- MINOR: compression: make the stats a bit more robust
- BUG/MEDIUM: comp: DEFAULT_MAXZLIBMEM was expressed in bytes and not megabytes
- MINOR: connection: don't remove failed handshake flags
- MEDIUM: connection: add an error code in connections
- MEDIUM: connection: add minimal error reporting in logs for incomplete connections
- MEDIUM: connection: add error reporting for the PROXY protocol header
- MEDIUM: connection: add error reporting for the SSL
- DOC: document the connection error format in logs
- BUG/MINOR: http: don't log a 503 on client errors while waiting for requests
- BUILD: stdbool is not portable
- BUILD: ssl: NAME_MAX is not portable, use MAXPATHLEN instead
- BUG/MAJOR: raw_sock: must check error code on hangup
- BUG/MAJOR: polling: do not set speculative events on ERR nor HUP
- BUG/MEDIUM: session: fix FD leak when transport layer logging is enabled
- MINOR: stats: add a few more information on session dump
- BUG/MINOR: tcp: set the ADDR_TO_SET flag on outgoing connections
- CLEANUP: connection: remove unused server/proxy/task/si_applet declarations
- BUG/MEDIUM: tcp: process could theorically crash on lack of source ports
- MINOR: cfgparse: mention "interface" in the list of allowed "source" options
- MEDIUM: connection: introduce "struct conn_src" for servers and proxies
- CLEANUP: proto_tcp: use the same code to bind servers and backends
- CLEANUP: backend: use the same tproxy address selection code for servers and backends
- BUG/MEDIUM: stick-tables: conversions to strings were broken in dev13
- MEDIUM: proto_tcp: add support for tracking L7 information
- MEDIUM: counters: add sc1_trackers/sc2_trackers
- MINOR: http: add the "base32" pattern fetch function
- MINOR: http: add the "base32+src" fetch method.
- CLEANUP: session: use an array for the stick counters
- BUG/MINOR: proto_tcp: fix parsing of "table" in track-sc1/2
- BUG/MINOR: proto_tcp: bidirectional fetches not supported anymore in track-sc1/2
- BUG/MAJOR: connection: always recompute polling status upon I/O
- BUG/MINOR: connection: remove a few synchronous calls to polling updates
- MINOR: config: improve error checking on TCP stick-table tracking
- DOC: add some clarifications to the readme
This returns the concatenation of the base32 fetch and the src fetch.
The resulting type is of type binary, with a size of 8 or 20 bytes
depending on the source address family. This can be used to track
per-IP, per-URL counters.
This returns a 32-bit hash of the value returned by the "base"
fetch method above. This is useful to track per-URL activity on
high traffic sites without having to store all URLs. Instead a
shorter hash is stored, saving a lot of memory. The output type
is an unsigned integer.
Returns the current amount of concurrent connections tracking the same
tracked counters. This number is automatically incremented when tracking
begins and decremented when tracking stops. It differs from sc1_conn_cur in
that it does not rely on any stored information but on the table's reference
count (the "use" value which is returned by "show table" on the CLI). This
may sometimes be more suited for layer7 tracking.
Until now it was only possible to use track-sc1/sc2 with "src" which
is the IPv4 source address. Now we can use track-sc1/sc2 with any fetch
as well as any transformation type. It works just like the "stick"
directive.
Samples are automatically converted to the correct types for the table.
Only "tcp-request content" rules may use L7 information, and such information
must already be present when the tracking is set up. For example it becomes
possible to track the IP address passed in the X-Forwarded-For header.
HTTP request processing now also considers tracking from backend rules
because we want to be able to update the counters even when the request
was already parsed and tracked.
Some more controls need to be performed (eg: samples do not distinguish
between L4 and L6).
Considering there is no option yet for maxconnrate for servers, I wrote
an ACL to check a backend server session rate which we use to send to an
"overflow" backend to prevent latency responses to our clients (very
sensitive latency requirements).
Sessions using client certs are huge (more than 1 kB) and do not fit
in session cache, or require a huge cache.
In this new implementation sshcachesize set a number of available blocks
instead a number of available sessions.
Each block is large enough (128 bytes) to store a simple session (without
client certs).
Huge sessions will take multiple blocks depending on client certificate size.
Note: some unused code for session sync with remote peers was temporarily
removed.
The compression is disabled when the HTTP status code is not 200, indeed
compression on some HTTP code can create issues (ex: 206, 416).
Multipart message should not be compressed eitherway.
Released version 1.5-dev14 with the following main changes :
- DOC: fix minor typos
- BUG/MEDIUM: compression: does not forward trailers
- MINOR: buffer_dump with ASCII
- BUG/MEDIUM: checks: mark the check as stopped after a connect error
- BUG/MEDIUM: checks: ensure we completely disable polling upon success
- BUG/MINOR: checks: don't mark the FD as closed before transport close
- MEDIUM: checks: avoid accumulating TIME_WAITs during checks
- MINOR: cli: report the msg state in full text in "show sess $PTR"
- CLEANUP: checks: rename some server check flags
- MAJOR: checks: rework completely bogus state machine
- BUG/MINOR: checks: slightly clean the state machine up
- MEDIUM: checks: avoid waking the application up for pure TCP checks
- MEDIUM: checks: close the socket as soon as we have a response
- BUG/MAJOR: checks: close FD on all timeouts
- MINOR: checks: fix recv polling after connect()
- MEDIUM: connection: provide a common conn_full_close() function
- BUG/MEDIUM: checks: prevent TIME_WAITs from appearing also on timeouts
- BUG/MAJOR: peers: the listener's maxaccept was not set and caused loops
- MINOR: listeners: make the accept loop more robust when maxaccept==0
- BUG/MEDIUM: acl: correctly resolve all args, not just the first one
- BUG/MEDIUM: acl: make prue_acl_expr() correctly free ACL expressions upon exit
- BUG/MINOR: stats: fix inversion of the report of a check in progress
- MEDIUM: tcp: add explicit support for delayed ACK in connect()
- BUG/MEDIUM: connection: always disable polling upon error
- MINOR: connection: abort earlier when errors are detected
- BUG/MEDIUM: checks: report handshake failures
- BUG/MEDIUM: connection: local_send_proxy must wait for connection to establish
- MINOR: tcp: add support for the "v6only" bind option
- MINOR: stats: also report the computed compression savings in html stats
- MINOR: stats: report the total number of compressed responses per front/back
- MINOR: tcp: add support for the "v4v6" bind option
- DOC: stats: document the comp_rsp stats column
- BUILD: buffer: fix another isprint() warning on solaris
- MINOR: cli: add support for the "show sess all" command
- BUG/MAJOR: cli: show sess <id> may randomly corrupt the back-ref list
- MINOR: cli: improve output format for show sess $ptr
Sometimes when debugging haproxy, it is important to take a full
snapshot of all sessions and their respective states. Till now it
was complicated to do because we had to use scripts and sessions
would vanish between two runs.
Now with this command we have the same output as "show sess $id"
but for all sessions in the table. This is a debugging command only,
it should only be used by developers as it is never guaranteed to
perfectly work !
Commit 9b6700f added "v6only". As suggested by Vincent Bernat, it is
sometimes useful to have the opposite option to force binding to the
two protocols when the system is configured to bind to v6 only by
default. This option does exactly this. v6only still has precedence.
Released version 1.5-dev13 with the following main changes :
- BUILD: fix build issue without USE_OPENSSL
- BUILD: fix compilation error with DEBUG_FULL
- DOC: ssl: remove prefer-server-ciphers documentation
- DOC: ssl: surround keywords with quotes
- DOC: fix minor typo on http-send-name-header
- BUG/MEDIUM: acls using IPv6 subnets patterns incorrectly match IPs
- BUG/MAJOR: fix a segfault on option http_proxy and url_ip acl
- MEDIUM: http: accept IPv6 values with (s)hdr_ip acl
- BUILD: report zlib support in haproxy -vv
- DOC: compression: add some details and clean up the formatting
- DOC: Change is_ssl acl to ssl_fc acl in example
- DOC: make it clear what the HTTP request size is
- MINOR: ssl: try to load Diffie-Hellman parameters from cert file
- DOC: ssl: update 'crt' statement on 'bind' about Diffie-Hellman parameters loading
- MINOR: ssl: add elliptic curve Diffie-Hellman support for ssl key generation
- DOC: ssl: add 'ecdhe' statement on 'bind'
- MEDIUM: ssl: add client certificate authentication support
- DOC: ssl: add 'verify', 'cafile' and 'crlfile' statements on 'bind'
- MINOR: ssl: add fetch and ACL 'client_crt' to test a client cert is present
- DOC: ssl: add fetch and ACL 'client_cert'
- MINOR: ssl: add ignore verify errors options
- DOC: ssl: add 'ca-ignore-err' and 'crt-ignore-err' statements on 'bind'
- MINOR: ssl: add fetch and ACL 'ssl_verify_result'
- DOC: ssl: add fetch and ACL 'ssl_verify_result'
- MINOR: ssl: add fetches and ACLs to return verify errors
- DOC: ssl: add fetches and ACLs 'ssl_verify_crterr', 'ssl_verify_caerr', and 'ssl_verify_crterr_depth'
- MINOR: ssl: disable shared memory and locks on session cache if nbproc == 1
- MINOR: ssl: add build param USE_PRIVATE_CACHE to build cache without shared memory
- MINOR: ssl : add statements 'notlsv11' and 'notlsv12' and rename 'notlsv1' to 'notlsv10'.
- DOC: ssl : add statements 'notlsv11' and 'notlsv12' and rename 'notlsv1' to 'notlsv10'.
- MEDIUM: config: authorize frontend and listen without bind.
- MINOR: ssl: add statement 'no-tls-tickets' on bind to disable stateless session resumption
- DOC: ssl: add 'no-tls-tickets' statement documentation.
- BUG/MINOR: ssl: Fix CRL check was not enabled when crlfile was specified.
- BUG/MINOR: build: Fix compilation issue on openssl 0.9.6 due to missing CRL feature.
- BUG/MINOR: conf: Fix 'maxsslconn' statement error if built without OPENSSL.
- BUG/MINOR: build: Fix failure with USE_OPENSSL=1 and USE_FUTEX=1 on archs i486 and i686.
- MINOR: ssl: remove prefer-server-ciphers statement and set it as the default on ssl listeners.
- BUG/MEDIUM: ssl: subsequent handshakes fail after server configuration changes
- MINOR: ssl: add 'crt-base' and 'ca-base' global statements.
- MEDIUM: conf: rename 'nosslv3' and 'notlsvXX' statements 'no-sslv3' and 'no-tlsvXX'.
- MEDIUM: conf: rename 'cafile' and 'crlfile' statements 'ca-file' and 'crl-file'
- MINOR: ssl: use bit fields to store ssl options instead of one int each
- MINOR: ssl: add 'force-sslv3' and 'force-tlsvXX' statements on bind.
- MINOR: ssl: add 'force-sslv3' and 'force-tlsvXX' statements on server
- MINOR: ssl: add defines LISTEN_DEFAULT_CIPHERS and CONNECT_DEFAULT_CIPHERS.
- BUG/MINOR: ssl: Fix issue on server statements 'no-tls*' and 'no-sslv3'
- MINOR: ssl: move ssl context init for servers from cfgparse.c to ssl_sock.c
- MEDIUM: ssl: reject ssl server keywords in default-server statement
- MINOR: ssl: add statement 'no-tls-tickets' on server side.
- MINOR: ssl: add statements 'verify', 'ca-file' and 'crl-file' on servers.
- DOC: Fix rename of options cafile and crlfile to ca-file and crl-file.
- MINOR: sample: manage binary to string type convertion in stick-table and samples.
- MINOR: acl: add parse and match primitives to use binary type on ACLs
- MINOR: sample: export 'sample_get_trash_chunk(void)'
- MINOR: conf: rename all ssl modules fetches using prefix 'ssl_fc' and 'ssl_c'
- MINOR: ssl: add pattern and ACLs fetches 'ssl_fc_protocol', 'ssl_fc_cipher', 'ssl_fc_use_keysize' and 'ssl_fc_alg_keysize'
- MINOR: ssl: add pattern fetch 'ssl_fc_session_id'
- MINOR: ssl: add pattern and ACLs fetches 'ssl_c_version' and 'ssl_f_version'
- MINOR: ssl: add pattern and ACLs fetches 'ssl_c_s_dn', 'ssl_c_i_dn', 'ssl_f_s_dn' and 'ssl_c_i_dn'
- MINOR: ssl: add pattern and ACLs 'ssl_c_sig_alg' and 'ssl_f_sig_alg'
- MINOR: ssl: add pattern and ACLs fetches 'ssl_c_key_alg' and 'ssl_f_key_alg'
- MINOR: ssl: add pattern and ACLs fetches 'ssl_c_notbefore', 'ssl_c_notafter', 'ssl_f_notbefore' and 'ssl_f_notafter'
- MINOR: ssl: add 'crt' statement on server.
- MINOR: ssl: checks the consistency of a private key with the corresponding certificate
- BUG/MEDIUM: ssl: review polling on reneg.
- BUG/MEDIUM: ssl: Fix some reneg cases not correctly handled.
- BUG/MEDIUM: ssl: Fix sometimes reneg fails if requested by server.
- MINOR: build: allow packagers to specify the ssl cache size
- MINOR: conf: add warning if ssl is not enabled and a certificate is present on bind.
- MINOR: ssl: Add tune.ssl.lifetime statement in global.
- MINOR: compression: Enable compression for IE6 w/SP2, IE7 and IE8
- BUG: http: revert broken optimisation from 82fe75c1a7
- DOC: duplicate ssl_sni section
- MEDIUM: HTTP compression (zlib library support)
- CLEANUP: use struct comp_ctx instead of union
- BUILD: remove dependency to zlib.h
- MINOR: compression: memlevel and windowsize
- MEDIUM: use pool for zlib
- MINOR: compression: try init in cfgparse.c
- MINOR: compression: init before deleting headers
- MEDIUM: compression: limit RAM usage
- MINOR: compression: tune.comp.maxlevel
- MINOR: compression: maximum compression rate limit
- MINOR: log-format: check number of arguments in cfgparse.c
- BUG/MEDIUM: compression: no Content-Type header but type in configuration
- BUG/MINOR: compression: deinit zlib only when required
- MEDIUM: compression: don't compress when no data
- MEDIUM: compression: use pool for comp_ctx
- MINOR: compression: rate limit in 'show info'
- MINOR: compression: report zlib memory usage
- BUG/MINOR: compression: dynamic level increase
- DOC: compression: unsupported cases.
- MINOR: compression: CPU usage limit
- MEDIUM: http: add "redirect scheme" to ease HTTP to HTTPS redirection
- BUG/MAJOR: ssl: missing tests in ACL fetch functions
- MINOR: config: add a function to indent error messages
- REORG: split "protocols" files into protocol and listener
- MEDIUM: config: replace ssl_conf by bind_conf
- CLEANUP: listener: remove unused conf->file and conf->line
- MEDIUM: listener: add a minimal framework to register "bind" keyword options
- MEDIUM: config: move the "bind" TCP parameters to proto_tcp
- MEDIUM: move bind SSL parsing to ssl_sock
- MINOR: config: improve error reporting for "bind" lines
- MEDIUM: config: move the common "bind" settings to listener.c
- MEDIUM: config: move all unix-specific bind keywords to proto_uxst.c
- MEDIUM: config: enumerate full list of registered "bind" keywords upon error
- MINOR: listener: add a scope field in the bind keyword lists
- MINOR: config: pass the file and line to config keyword parsers
- MINOR: stats: fill the file and line numbers in the stats frontend
- MINOR: config: set the bind_conf entry on listeners created from a "listen" line.
- MAJOR: listeners: use dual-linked lists to chain listeners with frontends
- REORG: listener: move unix perms from the listener to the bind_conf
- BUG: backend: balance hdr was broken since 1.5-dev11
- MINOR: standard: make memprintf() support a NULL destination
- MINOR: config: make str2listener() use memprintf() to report errors.
- MEDIUM: stats: remove the stats_sock struct from the global struct
- MINOR: ssl: set the listeners' data layer to ssl during parsing
- MEDIUM: stats: make use of the standard "bind" parsers to parse global socket
- DOC: move bind options to their own section
- DOC: stats: refer to "bind" section for "stats socket" settings
- DOC: fix index to reference bind and server options
- BUG: http: do not print garbage on invalid requests in debug mode
- BUG/MINOR: config: check the proper pointer to report unknown protocol
- CLEANUP: connection: offer conn_prepare() to set up a connection
- CLEANUP: config: fix typo inteface => interface
- BUG: stats: fix regression introduced by commit 4348fad1
- MINOR: cli: allow to set frontend maxconn to zero
- BUG/MAJOR: http: chunk parser was broken with buffer changes
- MEDIUM: monitor: simplify handling of monitor-net and mode health
- MINOR: connection: add a pointer to the connection owner
- MEDIUM: connection: make use of the owner instead of container_of
- BUG/MINOR: ssl: report the L4 connection as established when possible
- BUG/MEDIUM: proxy: must not try to stop disabled proxies upon reload
- BUG/MINOR: config: use a copy of the file name in proxy configurations
- BUG/MEDIUM: listener: don't pause protocols that do not support it
- MEDIUM: proxy: add the global frontend to the list of normal proxies
- BUG/MINOR: epoll: correctly disable FD polling in fd_rem()
- MINOR: signal: really ignore signals configured with no handler
- MINOR: buffers: add a few functions to write chars, strings and blocks
- MINOR: raw_sock: always report asynchronous connection errors
- MEDIUM: raw_sock: improve connection error reporting
- REORG: connection: rename the data layer the "transport layer"
- REORG: connection: rename app_cb "data"
- MINOR: connection: provide a generic data layer wakeup callback
- MINOR: connection: split conn_prepare() in two functions
- MINOR: connection: add an init callback to the data_cb struct
- MEDIUM: session: use a specific data_cb for embryonic sessions
- MEDIUM: connection: use a generic data-layer init() callback
- MEDIUM: connection: reorganize connection flags
- MEDIUM: connection: only call the data->wake callback on activity
- MEDIUM: connection: make it possible for data->wake to return an error
- MEDIUM: session: register a data->wake callback to process errors
- MEDIUM: connection: don't call the data->init callback upon error
- MEDIUM: connection: it's not the data layer's role to validate the connection
- MEDIUM: connection: automatically disable polling on error
- REORG: connection: move the PROXY protocol management to connection.c
- MEDIUM: connection: add a new local send-proxy transport callback
- MAJOR: checks: make use of the connection layer to send checks
- REORG: server: move the check-specific parts into a check subsection
- MEDIUM: checks: use real buffers to store requests and responses
- MEDIUM: check: add the ctrl and transport layers in the server check structure
- MAJOR: checks: completely use the connection transport layer
- MEDIUM: checks: add the "check-ssl" server option
- MEDIUM: checks: enable the PROXY protocol with health checks
- CLEANUP: checks: remove minor warnings for assigned but not used variables
- MEDIUM: tcp: enable TCP Fast Open on systems which support it
- BUG: connection: fix regression from commit 9e272bf9
- CLEANUP: cttproxy: remove a warning on undeclared close()
- BUG/MAJOR: ensure that hdr_idx is always reserved when L7 fetches are used
- MEDIUM: listener: add support for linux's accept4() syscall
- MINOR: halog: sort output by cookie code
- BUG/MINOR: halog: -ad/-ac report the correct number of output lines
- BUG/MINOR: halog: fix help message for -ut/-uto
- MINOR: halog: add a parameter to limit output line count
- BUILD: accept4: move the socketcall declaration outside of accept4()
- MINOR: server: add minimal infrastructure to parse keywords
- MINOR: standard: make indent_msg() support empty messages
- MEDIUM: server: check for registered keywords when parsing unknown keywords
- MEDIUM: server: move parsing of keyword "id" to server.c
- BUG/MEDIUM: config: check-send-proxy was ignored if SSL was not builtin
- MEDIUM: ssl: move "server" keyword SSL options parsing to ssl_sock.c
- MEDIUM: log: suffix the frontend's name with '~' when using SSL
- MEDIUM: connection: always unset the transport layer upon close
- BUG/MINOR: session: fix some leftover from debug code
- BUG/MEDIUM: session: enable the conn_session_update() callback
- MEDIUM: connection: add a flag to hold the transport layer
- MEDIUM: log: add a new LW_XPRT flag to pin the transport layer
- MINOR: log: make lf_text use a const char *
- MEDIUM: log: report SSL ciphers and version in logs using logformat %sslc/%sslv
- REORG: http: rename msg->buf to msg->chn since it's a channel
- CLEANUP: http: use 'chn' to name channel variables, not 'buf'
- CLEANUP: channel: use 'chn' instead of 'buf' as local variable names
- CLEANUP: tcp: use 'chn' instead of 'buf' or 'b' for channel pointer names
- CLEANUP: stream_interface: use 'chn' instead of 'b' to name channel pointers
- CLEANUP: acl: use 'chn' instead of 'b' to name channel pointers
- MAJOR: channel: replace the struct buffer with a pointer to a buffer
- OPTIM: channel: reorganize struct members to improve cache efficiency
- CLEANUP: session: remove term_trace which is not used anymore
- OPTIM: session: reorder struct session fields
- OPTIM: connection: pack the struct target
- DOC: document relations between internal entities
- MINOR: ssl: add 'ssl_npn' sample/acl to extract TLS/NPN information
- BUILD: ssl: fix shctx build on older compilers
- MEDIUM: ssl: add support for the "npn" bind keyword
- BUG: ssl: fix ssl_sni ACLs to correctly process regular expressions
- MINOR: chunk: provide string compare functions
- MINOR: sample: accept fetch keywords without parenthesis
- MEDIUM: sample: pass an empty list instead of a null for fetch args
- MINOR: ssl: improve socket behaviour upon handshake abort.
- BUG/MEDIUM: http: set DONTWAIT on data when switching to tunnel mode
- MEDIUM: listener: provide a fallback for accept4() when not supported
- BUG/MAJOR: connection: risk of crash on certain tricky close scenario
- MEDIUM: cli: allow the stats socket to be bound to a specific set of processes
- OPTIM: channel: inline channel_forward's fast path
- OPTIM: http: inline http_parse_chunk_size() and http_skip_chunk_crlf()
- OPTIM: tools: inline hex2i()
- CLEANUP: http: rename HTTP_MSG_DATA_CRLF state
- MINOR: compression: automatically disable compression for older browsers
- MINOR: compression: optimize memLevel to improve byte rate
- BUG/MINOR: http: compression should consider all Accept-Encoding header values
- BUILD: fix coexistence of openssl and zlib
- MINOR: ssl: add pattern and ACLs fetches 'ssl_c_serial' and 'ssl_f_serial'
- BUG/MEDIUM: command-line option -D must have precedence over "debug"
- MINOR: tools: add a clear_addr() function to unset an address
- BUG/MEDIUM: tcp: transparent bind to the source only when address is set
- CLEANUP: remove trashlen
- MAJOR: session: detach the connections from the stream interfaces
- DOC: update document describing relations between internal entities
- BUILD: make it possible to specify ZLIB path
- MINOR: compression: add an offload option to remove the Accept-Encoding header
- BUG: compression: disable auto-close and enable MSG_MORE during transfer
- CLEANUP: completely remove trashlen
- MINOR: chunk: add a function to reset a chunk
- CLEANUP: replace chunk_printf() with chunk_appendf()
- MEDIUM: make the trash be a chunk instead of a char *
- MEDIUM: remove remains of BUFSIZE in HTTP auth and sample conversions
- MEDIUM: stick-table: allocate the table key of size buffer size
- BUG/MINOR: stream_interface: don't loop over ->snd_buf()
- BUG/MINOR: session: ensure that we don't retry connection if some data were sent
- OPTIM: session: don't process the whole session when only timers need a refresh
- BUG/MINOR: session: mark the handshake as complete earlier
- MAJOR: connection: remove the CO_FL_CURR_*_POL flag
- BUG/MAJOR: always clear the CO_FL_WAIT_* flags after updating polling flags
- MAJOR: sepoll: make the poller totally event-driven
- OPTIM: stream_interface: disable reading when CF_READ_DONTWAIT is set
- BUILD: compression: remove a build warning
- MEDIUM: fd: don't unset fdtab[].updated upon delete
- REORG: fd: move the speculative I/O management from ev_sepoll
- REORG: fd: move the fd state management from ev_sepoll
- REORG: fd: centralize the processing of speculative events
- BUG: raw_sock: also consider ENOTCONN in addition to EAGAIN
- BUILD: stream_interface: remove si_fd() and its references
- BUILD: compression: enable build in BSD and OSX Makefiles
- MAJOR: ev_select: make the poller support speculative events
- MAJOR: ev_poll: make the poller support speculative events
- MAJOR: ev_kqueue: make the poller support speculative events
- MAJOR: polling: replace epoll with sepoll and remove sepoll
- MAJOR: polling: remove unused callbacks from the poller struct
- MEDIUM: http: refrain from sending "Connection: close" when Upgrade is present
- CLEANUP: channel: remove any reference of the hijackers
- CLEANUP: stream_interface: remove the external task type target
- MAJOR: connection: replace struct target with a pointer to an enum
- BUG: connection: fix typo in previous commit
- BUG: polling: don't skip polled events in the spec list
- MINOR: splice: disable it when the system returns EBADF
- MINOR: build: allow packagers to specify the default maxzlibmem
- BUG: halog: fix broken output limitation
- BUG: proxy: fix server name lookup in get_backend_server()
- BUG: compression: do not always increment the round counter on allocation failure
- BUG/MEDIUM: compression: release the zlib pools between keep-alive requests
- MINOR: global: don't prevent nbproc from being redefined
- MINOR: config: support process ranges for "bind-process"
- MEDIUM: global: add support for CPU binding on Linux ("cpu-map")
- MINOR: ssl: rename and document the tune.ssl.cachesize option
- DOC: update the PROXY protocol spec to support v2
- MINOR: standard: add a simple popcount function
- MEDIUM: adjust the maxaccept per listener depending on the number of processes
- BUG: compression: properly disable compression when content-type does not match
- MINOR: cli: report connection status in "show sess xxx"
- BUG/MAJOR: stream_interface: certain workloads could cause get stuck
- BUILD: cli: fix build when SSL is enabled
- MINOR: cli: report the fd state in "show sess xxx"
- MINOR: cli: report an error message on missing argument to compression rate
- MINOR: http: add some debugging functions to pretty-print msg state names
- BUG/MAJOR: stream_interface: read0 not always handled since dev12
- DOC: documentation on http header capture is wrong
- MINOR: http: allow the cookie capture size to be changed
- DOC: http header capture has not been limited in size for a long time
- DOC: update readme with build methods for BSD
- BUILD: silence a warning on Solaris about usage of isdigit()
- MINOR: stats: report HTTP compression stats per frontend and per backend
- MINOR: log: add '%Tl' to log-format
- MINOR: samples: update the url_param fetch to match parameters in the path
It was a bit frustrating to have no idea about the bandwidth saved by
HTTP compression. Now we have per-frontend and per-backend stats. The
stats on the HTTP interface are shown in a hover title in the "bytes out"
column if at least something was fed to the compressor. 3 new columns
appeared in the CSV stats output.
It's been documented for a very long time that captured HTTP headers
were limited to 64 characters, but this has not the case anymore since
1.3.11 in 2007 (commit cf7f320f), as they all use their own pool and
have no such limit anymore.
This fix should be backported to 1.4 and 1.3.
Some users need more than 64 characters to log large cookies. The limit
was set to 63 characters (and not 64 as previously documented). Now it
is possible to change this using the global "tune.http.cookielen" setting
if required.
Since commit it is said that only the first value of the first occurrence
of a header is captured. This is wrong. Since the introduction of header
captures in version 1.1 in 2005 (commit e983144d), the WHOLE line of the
LAST occurrence has been captured and the behaviour has never changed.
At this time the doc was correct. The error was introduced in the new doc
in 1.3.14 in 2007 (commit 0ba27505).
So this fix should be backported to 1.4 and 1.3.
New option 'maxcompcpuusage' in global section.
Sets the maximum CPU usage HAProxy can reach before stopping the
compression for new requests or decreasing the compression level of
current requests. It works like 'maxcomprate' but with the Idle.
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 doc updates covers the following points :
- description of protocol version 2
- discourage emission of UNKNOWN and encourage it acceptance
- clarify that each header must fit in an MSS and be sent at once
- provide an example of receiver code that explains how to use MSG_PEEK.
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.
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.
commit 82fe75c1 provided useful details in its log message. We should report
part of them in the documentation to know which algorithms are available.
This patch also makes some formatting cleanups (including a line outside the
compression scope, which exceeded 80 chars).
This patch adds input and output rate calcutation on the HTTP compresion
feature.
Compression can be limited with a maximum rate value in kilobytes per
second. The rate is set with the global 'maxcomprate' option. You can
change this value dynamicaly with 'set rate-limit http-compression
global' on the UNIX socket.
