You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
398 lines
12 KiB
398 lines
12 KiB
/*
|
|
* include/haproxy/defaults.h
|
|
* Miscellaneous default values.
|
|
*
|
|
* Copyright (C) 2000-2020 Willy Tarreau - w@1wt.eu
|
|
*
|
|
* This library is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation, version 2.1
|
|
* exclusively.
|
|
*
|
|
* This library is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with this library; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
|
|
*/
|
|
|
|
#ifndef _HAPROXY_DEFAULTS_H
|
|
#define _HAPROXY_DEFAULTS_H
|
|
|
|
/* MAX_PROCS defines the highest limit for the global "nbproc" value. It
|
|
* defaults to the number of bits in a long integer but may be lowered to save
|
|
* resources on embedded systems.
|
|
*/
|
|
#ifndef MAX_PROCS
|
|
#define MAX_PROCS LONGBITS
|
|
#endif
|
|
|
|
/* MAX_THREADS defines the highest limit for the global nbthread value. It
|
|
* defaults to the number of bits in a long integer when threads are enabled
|
|
* but may be lowered to save resources on embedded systems.
|
|
*/
|
|
#ifndef USE_THREAD
|
|
/* threads disabled, 1 thread max */
|
|
#define MAX_THREADS 1
|
|
#define MAX_THREADS_MASK 1
|
|
|
|
#else
|
|
/* threads enabled, max_threads defaults to long bits */
|
|
#ifndef MAX_THREADS
|
|
#define MAX_THREADS LONGBITS
|
|
#endif
|
|
#define MAX_THREADS_MASK (~0UL >> (LONGBITS - MAX_THREADS))
|
|
#endif
|
|
|
|
/*
|
|
* BUFSIZE defines the size of a read and write buffer. It is the maximum
|
|
* amount of bytes which can be stored by the proxy for each stream. However,
|
|
* when reading HTTP headers, the proxy needs some spare space to add or rewrite
|
|
* headers if needed. The size of this spare is defined with MAXREWRITE. So it
|
|
* is not possible to process headers longer than BUFSIZE-MAXREWRITE bytes. By
|
|
* default, BUFSIZE=16384 bytes and MAXREWRITE=min(1024,BUFSIZE/2), so the
|
|
* maximum length of headers accepted is 15360 bytes.
|
|
*/
|
|
#ifndef BUFSIZE
|
|
#define BUFSIZE 16384
|
|
#endif
|
|
|
|
/* certain buffers may only be allocated for responses in order to avoid
|
|
* deadlocks caused by request queuing. 2 buffers is the absolute minimum
|
|
* acceptable to ensure that a request gaining access to a server can get
|
|
* a response buffer even if it doesn't completely flush the request buffer.
|
|
* The worst case is an applet making use of a request buffer that cannot
|
|
* completely be sent while the server starts to respond, and all unreserved
|
|
* buffers are allocated by request buffers from pending connections in the
|
|
* queue waiting for this one to flush. Both buffers reserved buffers may
|
|
* thus be used at the same time.
|
|
*/
|
|
#ifndef RESERVED_BUFS
|
|
#define RESERVED_BUFS 2
|
|
#endif
|
|
|
|
// reserved buffer space for header rewriting
|
|
#ifndef MAXREWRITE
|
|
#define MAXREWRITE 1024
|
|
#endif
|
|
|
|
#ifndef REQURI_LEN
|
|
#define REQURI_LEN 1024
|
|
#endif
|
|
|
|
#ifndef CAPTURE_LEN
|
|
#define CAPTURE_LEN 64
|
|
#endif
|
|
|
|
#ifndef MAX_SYSLOG_LEN
|
|
#define MAX_SYSLOG_LEN 1024
|
|
#endif
|
|
|
|
/* 64kB to archive startup-logs seems way more than enough */
|
|
#ifndef STARTUP_LOG_SIZE
|
|
#define STARTUP_LOG_SIZE 65536
|
|
#endif
|
|
|
|
// maximum line size when parsing config
|
|
#ifndef LINESIZE
|
|
#define LINESIZE 2048
|
|
#endif
|
|
|
|
// max # args on a configuration line
|
|
#define MAX_LINE_ARGS 64
|
|
|
|
// maximum line size when parsing crt-bind-list config
|
|
#define CRT_LINESIZE 65536
|
|
|
|
// max # args on crt-bind-list configuration line
|
|
#define MAX_CRT_ARGS 2048
|
|
|
|
// max # args on a stats socket
|
|
// This should cover at least 5 + twice the # of data_types
|
|
#define MAX_STATS_ARGS 64
|
|
|
|
// max # of matches per regexp
|
|
#define MAX_MATCH 10
|
|
|
|
// max # of headers in one HTTP request or response
|
|
// By default, about 100 headers (+1 for the first line)
|
|
#ifndef MAX_HTTP_HDR
|
|
#define MAX_HTTP_HDR 101
|
|
#endif
|
|
|
|
// max # of headers in history when looking for header #-X
|
|
#ifndef MAX_HDR_HISTORY
|
|
#define MAX_HDR_HISTORY 10
|
|
#endif
|
|
|
|
// max # of stick counters per session (at least 3 for sc0..sc2)
|
|
#ifndef MAX_SESS_STKCTR
|
|
#define MAX_SESS_STKCTR 3
|
|
#endif
|
|
|
|
// max # of extra stick-table data types that can be registered at runtime
|
|
#ifndef STKTABLE_EXTRA_DATA_TYPES
|
|
#define STKTABLE_EXTRA_DATA_TYPES 0
|
|
#endif
|
|
|
|
// max # of stick-table filter entries that can be used during dump
|
|
#ifndef STKTABLE_FILTER_LEN
|
|
#define STKTABLE_FILTER_LEN 4
|
|
#endif
|
|
|
|
// max # of loops we can perform around a read() which succeeds.
|
|
// It's very frequent that the system returns a few TCP segments at a time.
|
|
#ifndef MAX_READ_POLL_LOOPS
|
|
#define MAX_READ_POLL_LOOPS 4
|
|
#endif
|
|
|
|
// minimum number of bytes read at once above which we don't try to read
|
|
// more, in order not to risk facing an EAGAIN. Most often, if we read
|
|
// at least 10 kB, we can consider that the system has tried to read a
|
|
// full buffer and got multiple segments (>1 MSS for jumbo frames, >7 MSS
|
|
// for normal frames) did not bother truncating the last segment.
|
|
#ifndef MIN_RECV_AT_ONCE_ENOUGH
|
|
#define MIN_RECV_AT_ONCE_ENOUGH (7*1448)
|
|
#endif
|
|
|
|
// The minimum number of bytes to be forwarded that is worth trying to splice.
|
|
// Below 4kB, it's not worth allocating pipes nor pretending to zero-copy.
|
|
#ifndef MIN_SPLICE_FORWARD
|
|
#define MIN_SPLICE_FORWARD 4096
|
|
#endif
|
|
|
|
// the max number of events returned in one call to poll/epoll. Too small a
|
|
// value will cause lots of calls, and too high a value may cause high latency.
|
|
#ifndef MAX_POLL_EVENTS
|
|
#define MAX_POLL_EVENTS 200
|
|
#endif
|
|
|
|
// the max number of tasks to run at once
|
|
#ifndef RUNQUEUE_DEPTH
|
|
#define RUNQUEUE_DEPTH 200
|
|
#endif
|
|
|
|
// cookie delimiter in "prefix" mode. This character is inserted between the
|
|
// persistence cookie and the original value. The '~' is allowed by RFC6265,
|
|
// and should not be too common in server names.
|
|
#ifndef COOKIE_DELIM
|
|
#define COOKIE_DELIM '~'
|
|
#endif
|
|
|
|
// this delimiter is used between a server's name and a last visit date in
|
|
// cookies exchanged with the client.
|
|
#ifndef COOKIE_DELIM_DATE
|
|
#define COOKIE_DELIM_DATE '|'
|
|
#endif
|
|
|
|
#define CONN_RETRIES 3
|
|
|
|
#define CHK_CONNTIME 2000
|
|
#define DEF_CHKINTR 2000
|
|
#define DEF_MAILALERTTIME 10000
|
|
#define DEF_FALLTIME 3
|
|
#define DEF_RISETIME 2
|
|
#define DEF_AGENT_FALLTIME 1
|
|
#define DEF_AGENT_RISETIME 1
|
|
#define DEF_CHECK_PATH ""
|
|
|
|
|
|
#define DEF_HANA_ONERR HANA_ONERR_FAILCHK
|
|
#define DEF_HANA_ERRLIMIT 10
|
|
|
|
// X-Forwarded-For header default
|
|
#define DEF_XFORWARDFOR_HDR "X-Forwarded-For"
|
|
|
|
// X-Original-To header default
|
|
#define DEF_XORIGINALTO_HDR "X-Original-To"
|
|
|
|
/* Default connections limit.
|
|
*
|
|
* A system limit can be enforced at build time in order to avoid using haproxy
|
|
* beyond reasonable system limits. For this, just define SYSTEM_MAXCONN to the
|
|
* absolute limit accepted by the system. If the configuration specifies a
|
|
* higher value, it will be capped to SYSTEM_MAXCONN and a warning will be
|
|
* emitted. The only way to override this limit will be to set it via the
|
|
* command-line '-n' argument. If SYSTEM_MAXCONN is not set, a minimum value
|
|
* of 100 will be used for DEFAULT_MAXCONN which almost guarantees that a
|
|
* process will correctly start in any situation.
|
|
*/
|
|
#ifdef SYSTEM_MAXCONN
|
|
#undef DEFAULT_MAXCONN
|
|
#define DEFAULT_MAXCONN SYSTEM_MAXCONN
|
|
#elif !defined(DEFAULT_MAXCONN)
|
|
#define DEFAULT_MAXCONN 100
|
|
#endif
|
|
|
|
/* Minimum check interval for spread health checks. Servers with intervals
|
|
* greater than or equal to this value will have their checks spread apart
|
|
* and will be considered when searching the minimal interval.
|
|
* Others will be ignored for the minimal interval and will have their checks
|
|
* scheduled on a different basis.
|
|
*/
|
|
#ifndef SRV_CHK_INTER_THRES
|
|
#define SRV_CHK_INTER_THRES 1000
|
|
#endif
|
|
|
|
/* Specifies the string used to report the version and release date on the
|
|
* statistics page. May be defined to the empty string ("") to permanently
|
|
* disable the feature.
|
|
*/
|
|
#ifndef STATS_VERSION_STRING
|
|
#define STATS_VERSION_STRING " version " HAPROXY_VERSION ", released " HAPROXY_DATE
|
|
#endif
|
|
|
|
/* This is the default statistics URI */
|
|
#ifdef CONFIG_STATS_DEFAULT_URI
|
|
#define STATS_DEFAULT_URI CONFIG_STATS_DEFAULT_URI
|
|
#else
|
|
#define STATS_DEFAULT_URI "/haproxy?stats"
|
|
#endif
|
|
|
|
/* This is the default statistics realm */
|
|
#ifdef CONFIG_STATS_DEFAULT_REALM
|
|
#define STATS_DEFAULT_REALM CONFIG_STATS_DEFAULT_REALM
|
|
#else
|
|
#define STATS_DEFAULT_REALM "HAProxy Statistics"
|
|
#endif
|
|
|
|
/* Maximum signal queue size, and also number of different signals we can
|
|
* handle.
|
|
*/
|
|
#ifndef MAX_SIGNAL
|
|
#define MAX_SIGNAL 256
|
|
#endif
|
|
|
|
/* Maximum host name length */
|
|
#ifndef MAX_HOSTNAME_LEN
|
|
#if MAXHOSTNAMELEN
|
|
#define MAX_HOSTNAME_LEN MAXHOSTNAMELEN
|
|
#else
|
|
#define MAX_HOSTNAME_LEN 64
|
|
#endif // MAXHOSTNAMELEN
|
|
#endif // MAX_HOSTNAME_LEN
|
|
|
|
/* Maximum health check description length */
|
|
#ifndef HCHK_DESC_LEN
|
|
#define HCHK_DESC_LEN 128
|
|
#endif
|
|
|
|
/* ciphers used as defaults on connect */
|
|
#ifndef CONNECT_DEFAULT_CIPHERS
|
|
#define CONNECT_DEFAULT_CIPHERS NULL
|
|
#endif
|
|
|
|
/* ciphers used as defaults on TLS 1.3 connect */
|
|
#ifndef CONNECT_DEFAULT_CIPHERSUITES
|
|
#define CONNECT_DEFAULT_CIPHERSUITES NULL
|
|
#endif
|
|
|
|
/* ciphers used as defaults on listeners */
|
|
#ifndef LISTEN_DEFAULT_CIPHERS
|
|
#define LISTEN_DEFAULT_CIPHERS NULL
|
|
#endif
|
|
|
|
/* cipher suites used as defaults on TLS 1.3 listeners */
|
|
#ifndef LISTEN_DEFAULT_CIPHERSUITES
|
|
#define LISTEN_DEFAULT_CIPHERSUITES NULL
|
|
#endif
|
|
|
|
/* named curve used as defaults for ECDHE ciphers */
|
|
#ifndef ECDHE_DEFAULT_CURVE
|
|
#define ECDHE_DEFAULT_CURVE "prime256v1"
|
|
#endif
|
|
|
|
/* ssl cache size */
|
|
#ifndef SSLCACHESIZE
|
|
#define SSLCACHESIZE 20000
|
|
#endif
|
|
|
|
/* ssl max dh param size */
|
|
#ifndef SSL_DEFAULT_DH_PARAM
|
|
#define SSL_DEFAULT_DH_PARAM 0
|
|
#endif
|
|
|
|
/* max memory cost per SSL session */
|
|
#ifndef SSL_SESSION_MAX_COST
|
|
#define SSL_SESSION_MAX_COST (16*1024) // measured
|
|
#endif
|
|
|
|
/* max memory cost per SSL handshake (on top of session) */
|
|
#ifndef SSL_HANDSHAKE_MAX_COST
|
|
#define SSL_HANDSHAKE_MAX_COST (76*1024) // measured
|
|
#endif
|
|
|
|
#ifndef DEFAULT_SSL_CTX_CACHE
|
|
#define DEFAULT_SSL_CTX_CACHE 1000
|
|
#endif
|
|
|
|
/* approximate stream size (for maxconn estimate) */
|
|
#ifndef STREAM_MAX_COST
|
|
#define STREAM_MAX_COST (sizeof(struct stream) + \
|
|
2 * sizeof(struct channel) + \
|
|
2 * sizeof(struct connection) + \
|
|
global.tune.requri_len + \
|
|
2 * global.tune.cookie_len)
|
|
#endif
|
|
|
|
/* available memory estimate : count about 3% of overhead in various structures */
|
|
#ifndef MEM_USABLE_RATIO
|
|
#define MEM_USABLE_RATIO 0.97
|
|
#endif
|
|
|
|
/* default per-thread pool cache size when enabled */
|
|
#ifndef CONFIG_HAP_POOL_CACHE_SIZE
|
|
#define CONFIG_HAP_POOL_CACHE_SIZE 524288
|
|
#endif
|
|
|
|
/* Number of samples used to compute the times reported in stats. A power of
|
|
* two is highly recommended, and this value multiplied by the largest response
|
|
* time must not overflow and unsigned int. See freq_ctr.h for more information.
|
|
* We consider that values are accurate to 95% with two batches of samples below,
|
|
* so in order to advertise accurate times across 1k samples, we effectively
|
|
* measure over 512.
|
|
*/
|
|
#ifndef TIME_STATS_SAMPLES
|
|
#define TIME_STATS_SAMPLES 512
|
|
#endif
|
|
|
|
/* max ocsp cert id asn1 encoded length */
|
|
#ifndef OCSP_MAX_CERTID_ASN1_LENGTH
|
|
#define OCSP_MAX_CERTID_ASN1_LENGTH 128
|
|
#endif
|
|
|
|
#ifndef OCSP_MAX_RESPONSE_TIME_SKEW
|
|
#define OCSP_MAX_RESPONSE_TIME_SKEW 300
|
|
#endif
|
|
|
|
/* Number of TLS tickets to check, used for rotation */
|
|
#ifndef TLS_TICKETS_NO
|
|
#define TLS_TICKETS_NO 3
|
|
#endif
|
|
|
|
/* pattern lookup default cache size, in number of entries :
|
|
* 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.
|
|
*/
|
|
#ifndef DEFAULT_PAT_LRU_SIZE
|
|
#define DEFAULT_PAT_LRU_SIZE 10000
|
|
#endif
|
|
|
|
/* maximum number of pollers that may be registered */
|
|
#ifndef MAX_POLLERS
|
|
#define MAX_POLLERS 10
|
|
#endif
|
|
|
|
/* Make all xxhash functions inline, with implementations being directly
|
|
* included within xxhash.h.
|
|
*/
|
|
#ifndef XXH_INLINE_ALL
|
|
#define XXH_INLINE_ALL
|
|
#endif
|
|
|
|
#endif /* _HAPROXY_DEFAULTS_H */
|
|
|