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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.
160 lines
3.9 KiB
C
160 lines
3.9 KiB
C
/*
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include/types/log.h
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This file contains definitions of log-related structures and macros.
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Copyright (C) 2000-2006 Willy Tarreau - w@1wt.eu
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation, version 2.1
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exclusively.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with this library; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef _TYPES_LOG_H
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#define _TYPES_LOG_H
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#include <sys/socket.h>
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#include <sys/un.h>
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#include <netinet/in.h>
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#include <common/config.h>
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#include <common/mini-clist.h>
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#define MAX_SYSLOG_LEN 1024
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#define NB_LOG_FACILITIES 24
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#define NB_LOG_LEVELS 8
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#define SYSLOG_PORT 514
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#define UNIQUEID_LEN 128
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/* lists of fields that can be logged */
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enum {
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LOG_FMT_TEXT = 0, /* raw text */
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LOG_FMT_EXPR, /* sample expression */
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LOG_FMT_SEPARATOR, /* separator replaced by one space */
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LOG_FMT_VARIABLE,
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/* information fields */
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LOG_FMT_GLOBAL,
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LOG_FMT_CLIENTIP,
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LOG_FMT_CLIENTPORT,
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LOG_FMT_BACKENDIP,
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LOG_FMT_BACKENDPORT,
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LOG_FMT_FRONTENDIP,
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LOG_FMT_FRONTENDPORT,
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LOG_FMT_SERVERPORT,
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LOG_FMT_SERVERIP,
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LOG_FMT_COUNTER,
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LOG_FMT_PID,
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LOG_FMT_DATE,
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LOG_FMT_DATEGMT,
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LOG_FMT_DATELOCAL,
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LOG_FMT_TS,
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LOG_FMT_MS,
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LOG_FMT_FRONTEND,
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LOG_FMT_FRONTEND_XPRT,
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LOG_FMT_BACKEND,
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LOG_FMT_SERVER,
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LOG_FMT_BYTES,
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LOG_FMT_BYTES_UP,
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LOG_FMT_T,
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LOG_FMT_TQ,
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LOG_FMT_TW,
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LOG_FMT_TC,
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LOG_FMT_TR,
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LOG_FMT_TT,
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LOG_FMT_STATUS,
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LOG_FMT_CCLIENT,
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LOG_FMT_CSERVER,
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LOG_FMT_TERMSTATE,
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LOG_FMT_TERMSTATE_CK,
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LOG_FMT_CONN,
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LOG_FMT_ACTCONN,
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LOG_FMT_FECONN,
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LOG_FMT_BECONN,
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LOG_FMT_SRVCONN,
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LOG_FMT_RETRIES,
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LOG_FMT_QUEUES,
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LOG_FMT_SRVQUEUE,
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LOG_FMT_BCKQUEUE,
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LOG_FMT_HDRREQUEST,
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LOG_FMT_HDRRESPONS,
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LOG_FMT_HDRREQUESTLIST,
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LOG_FMT_HDRRESPONSLIST,
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LOG_FMT_REQ,
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LOG_FMT_HOSTNAME,
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LOG_FMT_UNIQUEID,
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LOG_FMT_SSL_CIPHER,
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LOG_FMT_SSL_VERSION,
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};
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/* enum for parse_logformat_string */
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enum {
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LF_INIT = 0, // before first character
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LF_TEXT, // normal text
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LF_SEPARATOR, // a single separator
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LF_VAR, // variable name, after '%' or '%{..}'
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LF_STARTVAR, // % in text
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LF_STARG, // after '%{' and berore '}'
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LF_EDARG, // '}' after '%{'
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LF_STEXPR, // after '%[' or '%{..}[' and berore ']'
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LF_EDEXPR, // ']' after '%['
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LF_END, // \0 found
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};
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struct logformat_node {
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struct list list;
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int type; // LOG_FMT_*
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int options; // LOG_OPT_*
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char *arg; // text for LOG_FMT_TEXT, arg for others
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void *expr; // for use with LOG_FMT_EXPR
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};
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#define LOG_OPT_HEXA 0x00000001
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#define LOG_OPT_MANDATORY 0x00000002
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#define LOG_OPT_QUOTE 0x00000004
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#define LOG_OPT_REQ_CAP 0x00000008
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#define LOG_OPT_RES_CAP 0x00000010
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/* fields that need to be logged. They appear as flags in session->logs.logwait */
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#define LW_INIT 1 /* date */
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#define LW_CLIP 2 /* CLient IP */
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#define LW_SVIP 4 /* SerVer IP */
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#define LW_SVID 8 /* server ID */
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#define LW_REQ 16 /* http REQuest */
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#define LW_RESP 32 /* http RESPonse */
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#define LW_BYTES 256 /* bytes read from server */
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#define LW_COOKIE 512 /* captured cookie */
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#define LW_REQHDR 1024 /* request header(s) */
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#define LW_RSPHDR 2048 /* response header(s) */
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#define LW_BCKIP 4096 /* backend IP */
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#define LW_FRTIP 8192 /* frontend IP */
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#define LW_XPRT 16384 /* transport layer information (eg: SSL) */
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struct logsrv {
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struct list list;
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struct sockaddr_storage addr;
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int facility;
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int level;
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int minlvl;
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};
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#endif /* _TYPES_LOG_H */
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/*
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* Local variables:
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* c-indent-level: 8
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* c-basic-offset: 8
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* End:
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*/
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