| /* |
| * include/haproxy/proxy-t.h |
| * This file defines everything related to proxies. |
| * |
| * Copyright (C) 2000-2011 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_PROXY_T_H |
| #define _HAPROXY_PROXY_T_H |
| |
| #include <sys/types.h> |
| #include <sys/socket.h> |
| #include <netinet/in.h> |
| #include <arpa/inet.h> |
| |
| #include <import/eb32tree.h> |
| #include <import/ebpttree.h> |
| |
| #include <haproxy/api-t.h> |
| #include <haproxy/arg-t.h> |
| #include <haproxy/backend-t.h> |
| #include <haproxy/compression-t.h> |
| #include <haproxy/counters-t.h> |
| #include <haproxy/freq_ctr-t.h> |
| #include <haproxy/obj_type-t.h> |
| #include <haproxy/server-t.h> |
| #include <haproxy/stats-t.h> |
| #include <haproxy/tcpcheck-t.h> |
| #include <haproxy/thread-t.h> |
| #include <haproxy/tools-t.h> |
| #include <haproxy/uri_auth-t.h> |
| |
| /* values for proxy->mode */ |
| enum pr_mode { |
| PR_MODE_TCP = 0, |
| PR_MODE_HTTP, |
| PR_MODE_CLI, |
| PR_MODE_SYSLOG, |
| PR_MODE_PEERS, |
| PR_MODES |
| } __attribute__((packed)); |
| |
| enum PR_SRV_STATE_FILE { |
| PR_SRV_STATE_FILE_UNSPEC = 0, |
| PR_SRV_STATE_FILE_NONE, |
| PR_SRV_STATE_FILE_GLOBAL, |
| PR_SRV_STATE_FILE_LOCAL, |
| }; |
| |
| |
| /* flag values for proxy->cap. This is a bitmask of capabilities supported by the proxy */ |
| #define PR_CAP_NONE 0x0000 |
| #define PR_CAP_FE 0x0001 |
| #define PR_CAP_BE 0x0002 |
| #define PR_CAP_LISTEN (PR_CAP_FE|PR_CAP_BE) |
| #define PR_CAP_DEF 0x0004 /* defaults section */ |
| #define PR_CAP_LUA 0x0008 /* internal proxy used by lua engine */ |
| #define PR_CAP_LB 0x0010 /* load-balancing capabilities, i.e. listen/frontend/backend proxies */ |
| |
| /* bits for proxy->options */ |
| #define PR_O_REDISP 0x00000001 /* allow reconnection to dispatch in case of errors */ |
| #define PR_O_TRANSP 0x00000002 /* transparent mode : use original DEST as dispatch */ |
| |
| /* HTTP server-side reuse */ |
| #define PR_O_REUSE_NEVR 0x00000000 /* never reuse a shared connection */ |
| #define PR_O_REUSE_SAFE 0x00000004 /* only reuse a shared connection when it's safe to do so */ |
| #define PR_O_REUSE_AGGR 0x00000008 /* aggressively reuse a shared connection */ |
| #define PR_O_REUSE_ALWS 0x0000000C /* always reuse a shared connection */ |
| #define PR_O_REUSE_MASK 0x0000000C /* mask to retrieve shared connection preferences */ |
| |
| #define PR_O_IDLE_CLOSE_RESP 0x00000010 /* avoid closing idle connections during a soft stop */ |
| #define PR_O_PREF_LAST 0x00000020 /* prefer last server */ |
| #define PR_O_DISPATCH 0x00000040 /* use dispatch mode */ |
| #define PR_O_FORCED_ID 0x00000080 /* proxy's ID was forced in the configuration */ |
| #define PR_O_FWDFOR 0x00000100 /* conditionally insert x-forwarded-for with client address */ |
| #define PR_O_IGNORE_PRB 0x00000200 /* ignore empty requests (aborts and timeouts) */ |
| #define PR_O_NULLNOLOG 0x00000400 /* a connect without request will not be logged */ |
| #define PR_O_WREQ_BODY 0x00000800 /* always wait for the HTTP request body */ |
| #define PR_O_HTTP_UPG 0x00001000 /* Contain a "switch-mode http" tcp-request rule */ |
| #define PR_O_FF_ALWAYS 0x00002000 /* always set x-forwarded-for */ |
| #define PR_O_PERSIST 0x00004000 /* server persistence stays effective even when server is down */ |
| #define PR_O_LOGASAP 0x00008000 /* log as soon as possible, without waiting for the stream to complete */ |
| /* unused: 0x00010000 */ |
| #define PR_O_CHK_CACHE 0x00020000 /* require examination of cacheability of the 'set-cookie' field */ |
| #define PR_O_TCP_CLI_KA 0x00040000 /* enable TCP keep-alive on client-side streams */ |
| #define PR_O_TCP_SRV_KA 0x00080000 /* enable TCP keep-alive on server-side streams */ |
| #define PR_O_USE_ALL_BK 0x00100000 /* load-balance between backup servers */ |
| /* unused: 0x00020000 */ |
| #define PR_O_TCP_NOLING 0x00400000 /* disable lingering on client and server connections */ |
| #define PR_O_ABRT_CLOSE 0x00800000 /* immediately abort request when client closes */ |
| |
| #define PR_O_HTTP_KAL 0x00000000 /* HTTP keep-alive mode (http-keep-alive) */ |
| #define PR_O_HTTP_CLO 0x01000000 /* HTTP close mode (httpclose) */ |
| #define PR_O_HTTP_SCL 0x02000000 /* HTTP server close mode (http-server-close) */ |
| #define PR_O_HTTP_MODE 0x03000000 /* MASK to retrieve the HTTP mode */ |
| /* unused: 0x04000000 */ |
| |
| #define PR_O_TCPCHK_SSL 0x08000000 /* at least one TCPCHECK connect rule requires SSL */ |
| #define PR_O_CONTSTATS 0x10000000 /* continuous counters */ |
| #define PR_O_HTTP_PROXY 0x20000000 /* Enable stream to use HTTP proxy operations */ |
| #define PR_O_DISABLE404 0x40000000 /* Disable a server on a 404 response to a health-check */ |
| #define PR_O_ORGTO 0x80000000 /* insert x-original-to with destination address */ |
| |
| /* bits for proxy->options2 */ |
| #define PR_O2_SPLIC_REQ 0x00000001 /* transfer requests using linux kernel's splice() */ |
| #define PR_O2_SPLIC_RTR 0x00000002 /* transfer responses using linux kernel's splice() */ |
| #define PR_O2_SPLIC_AUT 0x00000004 /* automatically use linux kernel's splice() */ |
| #define PR_O2_SPLIC_ANY (PR_O2_SPLIC_REQ|PR_O2_SPLIC_RTR|PR_O2_SPLIC_AUT) |
| #define PR_O2_REQBUG_OK 0x00000008 /* let buggy requests pass through */ |
| #define PR_O2_RSPBUG_OK 0x00000010 /* let buggy responses pass through */ |
| #define PR_O2_NOLOGNORM 0x00000020 /* don't log normal traffic, only errors and retries */ |
| #define PR_O2_LOGERRORS 0x00000040 /* log errors and retries at level LOG_ERR */ |
| #define PR_O2_SMARTACC 0x00000080 /* don't immediately ACK request after accept */ |
| #define PR_O2_SMARTCON 0x00000100 /* don't immediately send empty ACK after connect */ |
| #define PR_O2_RDPC_PRST 0x00000200 /* Actvate rdp cookie analyser */ |
| #define PR_O2_CLFLOG 0x00000400 /* log into clf format */ |
| #define PR_O2_LOGHCHKS 0x00000800 /* log health checks */ |
| #define PR_O2_INDEPSTR 0x00001000 /* independent streams, don't update rex on write */ |
| #define PR_O2_SOCKSTAT 0x00002000 /* collect & provide separate statistics for sockets */ |
| |
| #define PR_O2_H1_ADJ_BUGCLI 0x00008000 /* adjust the case of h1 headers of the response for bogus clients */ |
| #define PR_O2_H1_ADJ_BUGSRV 0x00004000 /* adjust the case of h1 headers of the request for bogus servers */ |
| #define PR_O2_NO_H2_UPGRADE 0x00010000 /* disable the implicit H2 upgrades from H1 client connections */ |
| |
| #define PR_O2_NODELAY 0x00020000 /* fully interactive mode, never delay outgoing data */ |
| #define PR_O2_USE_PXHDR 0x00040000 /* use Proxy-Connection for proxy requests */ |
| #define PR_O2_CHK_SNDST 0x00080000 /* send the state of each server along with HTTP health checks */ |
| |
| #define PR_O2_SRC_ADDR 0x00100000 /* get the source ip and port for logs */ |
| |
| #define PR_O2_FAKE_KA 0x00200000 /* pretend we do keep-alive with server even though we close */ |
| /* unused : 0x00400000..0x80000000 */ |
| |
| /* server health checks */ |
| #define PR_O2_CHK_NONE 0x00000000 /* no L7 health checks configured (TCP by default) */ |
| #define PR_O2_TCPCHK_CHK 0x90000000 /* use TCPCHK check for server health */ |
| #define PR_O2_EXT_CHK 0xA0000000 /* use external command for server health */ |
| /* unused: 0xB0000000 to 0xF000000, reserved for health checks */ |
| #define PR_O2_CHK_ANY 0xF0000000 /* Mask to cover any check */ |
| /* end of proxy->options2 */ |
| |
| /* Cookie settings for pr->ck_opts */ |
| #define PR_CK_RW 0x00000001 /* rewrite all direct cookies with the right serverid */ |
| #define PR_CK_IND 0x00000002 /* keep only indirect cookies */ |
| #define PR_CK_INS 0x00000004 /* insert cookies when not accessing a server directly */ |
| #define PR_CK_PFX 0x00000008 /* rewrite all cookies by prefixing the right serverid */ |
| #define PR_CK_ANY (PR_CK_RW | PR_CK_IND | PR_CK_INS | PR_CK_PFX) |
| #define PR_CK_NOC 0x00000010 /* add a 'Cache-control' header with the cookie */ |
| #define PR_CK_POST 0x00000020 /* don't insert cookies for requests other than a POST */ |
| #define PR_CK_PSV 0x00000040 /* cookie ... preserve */ |
| #define PR_CK_HTTPONLY 0x00000080 /* emit the "HttpOnly" attribute */ |
| #define PR_CK_SECURE 0x00000100 /* emit the "Secure" attribute */ |
| #define PR_CK_DYNAMIC 0x00000200 /* create dynamic cookies for each server */ |
| |
| /* bits for sticking rules */ |
| #define STK_IS_MATCH 0x00000001 /* match on request fetch */ |
| #define STK_IS_STORE 0x00000002 /* store on request fetch */ |
| #define STK_ON_RSP 0x00000004 /* store on response fetch */ |
| |
| /* diff bits for proxy_find_best_match */ |
| #define PR_FBM_MISMATCH_ID 0x01 |
| #define PR_FBM_MISMATCH_NAME 0x02 |
| #define PR_FBM_MISMATCH_PROXYTYPE 0x04 |
| |
| /* Bits for the different retry causes */ |
| #define PR_RE_CONN_FAILED 0x00000001 /* Retry if we failed to connect */ |
| #define PR_RE_DISCONNECTED 0x00000002 /* Retry if we got disconnected with no answer */ |
| #define PR_RE_TIMEOUT 0x00000004 /* Retry if we got a server timeout before we got any data */ |
| #define PR_RE_401 0x00000008 /* Retry if we got a 401 */ |
| #define PR_RE_403 0x00000010 /* Retry if we got a 403 */ |
| #define PR_RE_404 0x00000020 /* Retry if we got a 404 */ |
| #define PR_RE_408 0x00000040 /* Retry if we got a 408 */ |
| #define PR_RE_425 0x00000080 /* Retry if we got a 425 */ |
| #define PR_RE_500 0x00000100 /* Retry if we got a 500 */ |
| #define PR_RE_501 0x00000200 /* Retry if we got a 501 */ |
| #define PR_RE_502 0x00000400 /* Retry if we got a 502 */ |
| #define PR_RE_503 0x00000800 /* Retry if we got a 503 */ |
| #define PR_RE_504 0x00001000 /* Retry if we got a 504 */ |
| #define PR_RE_STATUS_MASK (PR_RE_401 | PR_RE_403 | PR_RE_404 | \ |
| PR_RE_408 | PR_RE_425 | PR_RE_500 | \ |
| PR_RE_501 | PR_RE_502 | PR_RE_503 | \ |
| PR_RE_504) |
| /* 0x00000800, 0x00001000, 0x00002000, 0x00004000 and 0x00008000 unused, |
| * reserved for eventual future status codes |
| */ |
| #define PR_RE_EARLY_ERROR 0x00010000 /* Retry if we failed at sending early data */ |
| #define PR_RE_JUNK_REQUEST 0x00020000 /* We received an incomplete or garbage response */ |
| struct stream; |
| |
| struct http_snapshot { |
| unsigned int sid; /* ID of the faulty stream */ |
| unsigned int state; /* message state before the error (when saved) */ |
| unsigned int b_flags; /* buffer flags */ |
| unsigned int s_flags; /* stream flags */ |
| |
| unsigned int t_flags; /* transaction flags */ |
| unsigned int m_flags; /* message flags */ |
| unsigned long long m_clen; /* chunk len for this message */ |
| unsigned long long m_blen; /* body len for this message */ |
| }; |
| |
| struct h1_snapshot { |
| unsigned int state; /* H1 message state when the error occurred */ |
| unsigned int c_flags; /* H1 connection flags */ |
| unsigned int s_flags; /* H1 stream flags */ |
| unsigned int m_flags; /* H1 message flags */ |
| unsigned long long m_clen; /* chunk len for this message */ |
| unsigned long long m_blen; /* body len for this message */ |
| }; |
| |
| union error_snapshot_ctx { |
| struct http_snapshot http; |
| struct h1_snapshot h1; |
| }; |
| |
| struct error_snapshot { |
| /**** common part ****/ |
| struct timeval when; /* date of this event, (tv_sec == 0) means "never" */ |
| /* @16 */ |
| void (*show)(struct buffer *, const struct error_snapshot *); /* dump function */ |
| unsigned long long buf_ofs; /* relative position of the buffer's input inside its container */ |
| /* @32 */ |
| unsigned int buf_out; /* pending output bytes _before_ the buffer's input (0..buf->data-1) */ |
| unsigned int buf_len; /* original length of the last invalid request/response (0..buf->data-1-buf_out) */ |
| unsigned int buf_err; /* buffer-relative position where the error was detected (0..len-1) */ |
| unsigned int buf_wrap; /* buffer-relative position where the buffer is expected to wrap (1..buf_size) */ |
| /* @48 */ |
| struct proxy *oe; /* other end = frontend or backend involved */ |
| struct server *srv; /* server associated with the error (or NULL) */ |
| /* @64 */ |
| unsigned int ev_id; /* event number (counter incremented for each capture) */ |
| /* @68: 4 bytes hole here */ |
| struct sockaddr_storage src; /* client's address */ |
| |
| /**** protocol-specific part ****/ |
| union error_snapshot_ctx ctx; |
| char buf[VAR_ARRAY]; /* copy of the beginning of the message for bufsize bytes */ |
| }; |
| |
| struct proxy { |
| enum obj_type obj_type; /* object type == OBJ_TYPE_PROXY */ |
| char disabled; /* non-zero if disabled or shutdown */ |
| enum pr_mode mode; /* mode = PR_MODE_TCP, PR_MODE_HTTP, ... */ |
| char cap; /* supported capabilities (PR_CAP_*) */ |
| unsigned int maxconn; /* max # of active streams on the frontend */ |
| |
| int options; /* PR_O_REDISP, PR_O_TRANSP, ... */ |
| int options2; /* PR_O2_* */ |
| unsigned int ck_opts; /* PR_CK_* (cookie options) */ |
| unsigned int fe_req_ana, be_req_ana; /* bitmap of common request protocol analysers for the frontend and backend */ |
| unsigned int fe_rsp_ana, be_rsp_ana; /* bitmap of common response protocol analysers for the frontend and backend */ |
| unsigned int http_needed; /* non-null if HTTP analyser may be used */ |
| union { |
| struct proxy *be; /* default backend, or NULL if none set */ |
| char *name; /* default backend name during config parse */ |
| } defbe; |
| struct list acl; /* ACL declared on this proxy */ |
| struct list http_req_rules; /* HTTP request rules: allow/deny/... */ |
| struct list http_res_rules; /* HTTP response rules: allow/deny/... */ |
| struct list http_after_res_rules; /* HTTP final response rules: set-header/del-header/... */ |
| struct list redirect_rules; /* content redirecting rules (chained) */ |
| struct list switching_rules; /* content switching rules (chained) */ |
| struct list persist_rules; /* 'force-persist' and 'ignore-persist' rules (chained) */ |
| struct list sticking_rules; /* content sticking rules (chained) */ |
| struct list storersp_rules; /* content store response rules (chained) */ |
| struct list server_rules; /* server switching rules (chained) */ |
| struct { /* TCP request processing */ |
| unsigned int inspect_delay; /* inspection delay */ |
| struct list inspect_rules; /* inspection rules */ |
| struct list l4_rules; /* layer4 rules */ |
| struct list l5_rules; /* layer5 rules */ |
| } tcp_req; |
| struct { /* TCP request processing */ |
| unsigned int inspect_delay; /* inspection delay */ |
| struct list inspect_rules; /* inspection rules */ |
| } tcp_rep; |
| struct server *srv, defsrv; /* known servers; default server configuration */ |
| struct lbprm lbprm; /* load-balancing parameters */ |
| int srv_act, srv_bck; /* # of servers eligible for LB (UP|!checked) AND (enabled+weight!=0) */ |
| int served; /* # of active sessions currently being served */ |
| int cookie_len; /* strlen(cookie_name), computed only once */ |
| char *cookie_domain; /* domain used to insert the cookie */ |
| char *cookie_name; /* name of the cookie to look for */ |
| char *cookie_attrs; /* list of attributes to add to the cookie */ |
| char *dyncookie_key; /* Secret key used to generate dynamic persistent cookies */ |
| unsigned int cookie_maxidle; /* max idle time for this cookie */ |
| unsigned int cookie_maxlife; /* max life time for this cookie */ |
| char *rdp_cookie_name; /* name of the RDP cookie to look for */ |
| char *capture_name; /* beginning of the name of the cookie to capture */ |
| int rdp_cookie_len; /* strlen(rdp_cookie_name), computed only once */ |
| int capture_namelen; /* length of the cookie name to match */ |
| struct uri_auth *uri_auth; /* if non-NULL, the (list of) per-URI authentications */ |
| int capture_len; /* length of the string to be captured */ |
| int max_out_conns; /* Max number of idling connections we keep for a session */ |
| int max_ka_queue; /* 1+maximum requests in queue accepted for reusing a K-A conn (0=none) */ |
| int clitcpka_cnt; /* The maximum number of keepalive probes TCP should send before dropping the connection. (client side) */ |
| int clitcpka_idle; /* The time (in seconds) the connection needs to remain idle before TCP starts sending keepalive probes. (client side) */ |
| int clitcpka_intvl; /* The time (in seconds) between individual keepalive probes. (client side) */ |
| int srvtcpka_cnt; /* The maximum number of keepalive probes TCP should send before dropping the connection. (server side) */ |
| int srvtcpka_idle; /* The time (in seconds) the connection needs to remain idle before TCP starts sending keepalive probes. (server side) */ |
| int srvtcpka_intvl; /* The time (in seconds) between individual keepalive probes. (server side) */ |
| int monitor_uri_len; /* length of the string above. 0 if unused */ |
| char *monitor_uri; /* a special URI to which we respond with HTTP/200 OK */ |
| struct list mon_fail_cond; /* list of conditions to fail monitoring requests (chained) */ |
| struct { /* WARNING! check proxy_reset_timeouts() in proxy.h !!! */ |
| int client; /* client I/O timeout (in ticks) */ |
| int tarpit; /* tarpit timeout, defaults to connect if unspecified */ |
| int queue; /* queue timeout, defaults to connect if unspecified */ |
| int connect; /* connect timeout (in ticks) */ |
| int server; /* server I/O timeout (in ticks) */ |
| int httpreq; /* maximum time for complete HTTP request */ |
| int httpka; /* maximum time for a new HTTP request when using keep-alive */ |
| int check; /* maximum time for complete check */ |
| int tunnel; /* I/O timeout to use in tunnel mode (in ticks) */ |
| int clientfin; /* timeout to apply to client half-closed connections */ |
| int serverfin; /* timeout to apply to server half-closed connections */ |
| } timeout; |
| __decl_thread(HA_RWLOCK_T lock); /* may be taken under the server's lock */ |
| |
| char *id, *desc; /* proxy id (name) and description */ |
| struct eb_root pendconns; /* pending connections with no server assigned yet */ |
| int nbpend; /* number of pending connections with no server assigned yet */ |
| int totpend; /* total number of pending connections on this instance (for stats) */ |
| unsigned int queue_idx; /* number of pending connections which have been de-queued */ |
| unsigned int feconn, beconn; /* # of active frontend and backends streams */ |
| struct freq_ctr fe_req_per_sec; /* HTTP requests per second on the frontend */ |
| struct freq_ctr fe_conn_per_sec; /* received connections per second on the frontend */ |
| struct freq_ctr fe_sess_per_sec; /* accepted sessions per second on the frontend (after tcp rules) */ |
| struct freq_ctr be_sess_per_sec; /* sessions per second on the backend */ |
| unsigned int fe_sps_lim; /* limit on new sessions per second on the frontend */ |
| unsigned int fullconn; /* #conns on backend above which servers are used at full load */ |
| unsigned int tot_fe_maxconn; /* #maxconn of frontends linked to that backend, it is used to compute fullconn */ |
| struct net_addr except_xff_net; /* don't x-forward-for for this address. */ |
| struct net_addr except_xot_net; /* don't x-original-to for this address. */ |
| char *fwdfor_hdr_name; /* header to use - default: "x-forwarded-for" */ |
| char *orgto_hdr_name; /* header to use - default: "x-original-to" */ |
| int fwdfor_hdr_len; /* length of "x-forwarded-for" header */ |
| int orgto_hdr_len; /* length of "x-original-to" header */ |
| char *server_id_hdr_name; /* the header to use to send the server id (name) */ |
| int server_id_hdr_len; /* the length of the id (name) header... name */ |
| int conn_retries; /* maximum number of connect retries */ |
| unsigned int retry_type; /* Type of retry allowed */ |
| int redispatch_after; /* number of retries before redispatch */ |
| unsigned down_trans; /* up-down transitions */ |
| unsigned down_time; /* total time the proxy was down */ |
| time_t last_change; /* last time, when the state was changed */ |
| int (*accept)(struct stream *s); /* application layer's accept() */ |
| struct conn_src conn_src; /* connection source settings */ |
| enum obj_type *default_target; /* default target to use for accepted streams or NULL */ |
| struct proxy *next; |
| struct proxy *next_stkt_ref; /* Link to the list of proxies which refer to the same stick-table. */ |
| |
| struct list logsrvs; |
| struct list logformat; /* log_format linked list */ |
| struct list logformat_sd; /* log_format linked list for the RFC5424 structured-data part */ |
| struct buffer log_tag; /* override default syslog tag */ |
| struct ist header_unique_id; /* unique-id header */ |
| struct list format_unique_id; /* unique-id format */ |
| int to_log; /* things to be logged (LW_*) */ |
| int stop_time; /* date to stop listening, when stopping != 0 (int ticks) */ |
| int nb_req_cap, nb_rsp_cap; /* # of headers to be captured */ |
| struct cap_hdr *req_cap; /* chained list of request headers to be captured */ |
| struct cap_hdr *rsp_cap; /* chained list of response headers to be captured */ |
| struct pool_head *req_cap_pool, /* pools of pre-allocated char ** used to build the streams */ |
| *rsp_cap_pool; |
| struct be_counters be_counters; /* backend statistics counters */ |
| struct fe_counters fe_counters; /* frontend statistics counters */ |
| |
| struct mt_list listener_queue; /* list of the temporarily limited listeners because of lack of a proxy resource */ |
| struct stktable *table; /* table for storing sticking streams */ |
| |
| struct task *task; /* the associated task, mandatory to manage rate limiting, stopping and resource shortage, NULL if disabled */ |
| struct tcpcheck_rules tcpcheck_rules; /* tcp-check send / expect rules */ |
| char *check_command; /* Command to use for external agent checks */ |
| char *check_path; /* PATH environment to use for external agent checks */ |
| struct http_reply *replies[HTTP_ERR_SIZE]; /* HTTP replies for known errors */ |
| unsigned int log_count; /* number of logs produced by the frontend */ |
| int grace; /* grace time after stop request */ |
| int uuid; /* universally unique proxy ID, used for SNMP */ |
| unsigned int backlog; /* force the frontend's listen backlog */ |
| unsigned long bind_proc; /* bitmask of processes using this proxy */ |
| unsigned int li_all; /* total number of listeners attached to this proxy */ |
| unsigned int li_paused; /* total number of listeners paused (LI_PAUSED) */ |
| unsigned int li_bound; /* total number of listeners ready (LI_LISTEN) */ |
| unsigned int li_ready; /* total number of listeners ready (>=LI_READY) */ |
| |
| /* warning: these structs are huge, keep them at the bottom */ |
| struct sockaddr_storage dispatch_addr; /* the default address to connect to */ |
| struct error_snapshot *invalid_req, *invalid_rep; /* captures of last errors */ |
| |
| /* used only during configuration parsing */ |
| int no_options; /* PR_O_REDISP, PR_O_TRANSP, ... */ |
| int no_options2; /* PR_O2_* */ |
| |
| struct { |
| char *file; /* file where the section appears */ |
| struct eb32_node id; /* place in the tree of used IDs */ |
| int line; /* line where the section appears */ |
| struct eb_root used_listener_id;/* list of listener IDs in use */ |
| struct eb_root used_server_id; /* list of server IDs in use */ |
| struct eb_root used_server_name; /* list of server names in use */ |
| struct list bind; /* list of bind settings */ |
| struct list listeners; /* list of listeners belonging to this frontend */ |
| struct list errors; /* list of all custom error files */ |
| struct arg_list args; /* sample arg list that need to be resolved */ |
| struct ebpt_node by_name; /* proxies are stored sorted by name here */ |
| char *logformat_string; /* log format string */ |
| char *lfs_file; /* file name where the logformat string appears (strdup) */ |
| int lfs_line; /* file name where the logformat string appears */ |
| int uif_line; /* file name where the unique-id-format string appears */ |
| char *uif_file; /* file name where the unique-id-format string appears (strdup) */ |
| char *uniqueid_format_string; /* unique-id format string */ |
| char *logformat_sd_string; /* log format string for the RFC5424 structured-data part */ |
| char *lfsd_file; /* file name where the structured-data logformat string for RFC5424 appears (strdup) */ |
| int lfsd_line; /* file name where the structured-data logformat string for RFC5424 appears */ |
| } conf; /* config information */ |
| struct eb_root used_server_addr; /* list of server addresses in use */ |
| void *parent; /* parent of the proxy when applicable */ |
| struct comp *comp; /* http compression */ |
| |
| struct { |
| union { |
| struct mailers *m; /* Mailer to send email alerts via */ |
| char *name; |
| } mailers; |
| char *from; /* Address to send email alerts from */ |
| char *to; /* Address(es) to send email alerts to */ |
| char *myhostname; /* Identity to use in HELO command sent to mailer */ |
| int level; /* Maximum syslog level of messages to send |
| * email alerts for */ |
| int set; /* True if email_alert settings are present */ |
| struct email_alertq *queues; /* per-mailer alerts queues */ |
| } email_alert; |
| |
| int load_server_state_from_file; /* location of the file containing server state. |
| * flag PR_SRV_STATE_FILE_* */ |
| char *server_state_file_name; /* used when load_server_state_from_file is set to |
| * PR_SRV_STATE_FILE_LOCAL. Give a specific file name for |
| * this backend. If not specified or void, then the backend |
| * name is used |
| */ |
| struct list filter_configs; /* list of the filters that are declared on this proxy */ |
| |
| EXTRA_COUNTERS(extra_counters_fe); |
| EXTRA_COUNTERS(extra_counters_be); |
| }; |
| |
| struct switching_rule { |
| struct list list; /* list linked to from the proxy */ |
| struct acl_cond *cond; /* acl condition to meet */ |
| int dynamic; /* this is a dynamic rule using the logformat expression */ |
| union { |
| struct proxy *backend; /* target backend */ |
| char *name; /* target backend name during config parsing */ |
| struct list expr; /* logformat expression to use for dynamic rules */ |
| } be; |
| char *file; |
| int line; |
| }; |
| |
| struct server_rule { |
| struct list list; /* list linked to from the proxy */ |
| struct acl_cond *cond; /* acl condition to meet */ |
| int dynamic; |
| union { |
| struct server *ptr; /* target server */ |
| char *name; /* target server name during config parsing */ |
| } srv; |
| struct list expr; /* logformat expression to use for dynamic rules */ |
| char *file; |
| int line; |
| }; |
| |
| struct persist_rule { |
| struct list list; /* list linked to from the proxy */ |
| struct acl_cond *cond; /* acl condition to meet */ |
| int type; |
| }; |
| |
| struct sticking_rule { |
| struct list list; /* list linked to from the proxy */ |
| struct acl_cond *cond; /* acl condition to meet */ |
| struct sample_expr *expr; /* fetch expr to fetch key */ |
| int flags; /* STK_* */ |
| union { |
| struct stktable *t; /* target table */ |
| char *name; /* target table name during config parsing */ |
| } table; |
| }; |
| |
| |
| struct redirect_rule { |
| struct list list; /* list linked to from the proxy */ |
| struct acl_cond *cond; /* acl condition to meet */ |
| int type; |
| int rdr_len; |
| char *rdr_str; |
| struct list rdr_fmt; |
| int code; |
| unsigned int flags; |
| int cookie_len; |
| char *cookie_str; |
| }; |
| |
| /* some of the most common options which are also the easiest to handle */ |
| struct cfg_opt { |
| const char *name; |
| unsigned int val; |
| unsigned int cap; |
| unsigned int checks; |
| unsigned int mode; |
| }; |
| |
| #endif /* _HAPROXY_PROXY_T_H */ |
| |
| /* |
| * Local variables: |
| * c-indent-level: 8 |
| * c-basic-offset: 8 |
| * End: |
| */ |