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Willy Tarreaubaaee002006-06-26 02:48:02 +02001/*
2 * General logging functions.
3 *
Willy Tarreaub7f694f2008-06-22 17:18:02 +02004 * Copyright 2000-2008 Willy Tarreau <w@1wt.eu>
Willy Tarreaubaaee002006-06-26 02:48:02 +02005 *
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License
8 * as published by the Free Software Foundation; either version
9 * 2 of the License, or (at your option) any later version.
10 *
11 */
12
Willy Tarreau8a3f52f2012-12-20 21:23:42 +010013#include <ctype.h>
Willy Tarreauc8f24f82007-11-30 18:38:35 +010014#include <fcntl.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020015#include <stdarg.h>
16#include <stdio.h>
17#include <stdlib.h>
18#include <string.h>
19#include <syslog.h>
20#include <time.h>
21#include <unistd.h>
Robert Tsai81ae1952007-12-05 10:47:29 +010022#include <errno.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020023
24#include <sys/time.h>
Willy Tarreau077edcb2016-08-10 18:30:56 +020025#include <sys/uio.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020026
Willy Tarreau4c7e4b72020-05-27 12:58:42 +020027#include <haproxy/api.h>
Willy Tarreaub2551052020-06-09 09:07:15 +020028#include <haproxy/applet-t.h>
Emeric Brun12941c82020-07-07 14:19:42 +020029#include <haproxy/cfgparse.h>
Willy Tarreau83487a82020-06-04 20:19:54 +020030#include <haproxy/cli.h>
Willy Tarreaub2551052020-06-09 09:07:15 +020031#include <haproxy/fd.h>
Willy Tarreau762d7a52020-06-04 11:23:07 +020032#include <haproxy/frontend.h>
Willy Tarreaub2551052020-06-09 09:07:15 +020033#include <haproxy/global.h>
Willy Tarreaucd72d8c2020-06-02 19:11:26 +020034#include <haproxy/http.h>
Emeric Brun12941c82020-07-07 14:19:42 +020035#include <haproxy/listener.h>
Willy Tarreauaeed4a82020-06-04 22:01:04 +020036#include <haproxy/log.h>
Emeric Brun12941c82020-07-07 14:19:42 +020037#include <haproxy/proxy.h>
Willy Tarreaub2551052020-06-09 09:07:15 +020038#include <haproxy/ring.h>
39#include <haproxy/sample.h>
40#include <haproxy/sink.h>
Willy Tarreau209108d2020-06-04 20:30:20 +020041#include <haproxy/ssl_sock.h>
Willy Tarreaudfd3de82020-06-04 23:46:14 +020042#include <haproxy/stream.h>
Willy Tarreau5e539c92020-06-04 20:45:39 +020043#include <haproxy/stream_interface.h>
Willy Tarreau92b4f132020-06-01 11:05:15 +020044#include <haproxy/time.h>
Willy Tarreaub2551052020-06-09 09:07:15 +020045#include <haproxy/tools.h>
Willy Tarreaud6788052020-05-27 15:59:00 +020046#include <haproxy/version.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020047
Emeric Brun45c457a2020-07-09 23:23:34 +020048/* global recv logs counter */
49int cum_log_messages;
Willy Tarreaubaaee002006-06-26 02:48:02 +020050
Emeric Brun12941c82020-07-07 14:19:42 +020051/* log forward proxy list */
52struct proxy *cfg_log_forward;
53
Emeric Brun54648852020-07-06 15:54:06 +020054struct log_fmt_st {
Dragan Dosen43885c72015-10-01 13:18:13 +020055 char *name;
Dragan Dosen43885c72015-10-01 13:18:13 +020056};
57
Emeric Brun54648852020-07-06 15:54:06 +020058static const struct log_fmt_st log_formats[LOG_FORMATS] = {
Dragan Dosen43885c72015-10-01 13:18:13 +020059 [LOG_FORMAT_RFC3164] = {
60 .name = "rfc3164",
Dragan Dosen43885c72015-10-01 13:18:13 +020061 },
62 [LOG_FORMAT_RFC5424] = {
63 .name = "rfc5424",
Emeric Brun54648852020-07-06 15:54:06 +020064 },
65 [LOG_FORMAT_PRIO] = {
66 .name = "priority",
Willy Tarreaue8746a02018-11-12 08:45:00 +010067 },
68 [LOG_FORMAT_SHORT] = {
69 .name = "short",
Emeric Brun54648852020-07-06 15:54:06 +020070 },
71 [LOG_FORMAT_TIMED] = {
72 .name = "timed",
73 },
74 [LOG_FORMAT_ISO] = {
75 .name = "iso",
Willy Tarreaue8746a02018-11-12 08:45:00 +010076 },
Willy Tarreauc1b06452018-11-12 11:57:56 +010077 [LOG_FORMAT_RAW] = {
78 .name = "raw",
Willy Tarreauc1b06452018-11-12 11:57:56 +010079 },
Dragan Dosen1322d092015-09-22 16:05:32 +020080};
81
Dragan Dosen835b9212016-02-12 13:23:03 +010082/*
83 * This map is used with all the FD_* macros to check whether a particular bit
Willy Tarreau1bfd6022019-06-07 11:10:07 +020084 * is set or not. Each bit represents an ACSII code. ha_bit_set() sets those
85 * bytes which should be escaped. When ha_bit_test() returns non-zero, it means
86 * that the byte should be escaped. Be careful to always pass bytes from 0 to
87 * 255 exclusively to the macros.
Dragan Dosen835b9212016-02-12 13:23:03 +010088 */
Willy Tarreau1bfd6022019-06-07 11:10:07 +020089long rfc5424_escape_map[(256/8) / sizeof(long)];
90long hdr_encode_map[(256/8) / sizeof(long)];
91long url_encode_map[(256/8) / sizeof(long)];
92long http_encode_map[(256/8) / sizeof(long)];
Dragan Dosen835b9212016-02-12 13:23:03 +010093
Dragan Dosen835b9212016-02-12 13:23:03 +010094
Willy Tarreaubaaee002006-06-26 02:48:02 +020095const char *log_facilities[NB_LOG_FACILITIES] = {
96 "kern", "user", "mail", "daemon",
97 "auth", "syslog", "lpr", "news",
98 "uucp", "cron", "auth2", "ftp",
99 "ntp", "audit", "alert", "cron2",
100 "local0", "local1", "local2", "local3",
101 "local4", "local5", "local6", "local7"
102};
103
Willy Tarreaubaaee002006-06-26 02:48:02 +0200104const char *log_levels[NB_LOG_LEVELS] = {
105 "emerg", "alert", "crit", "err",
106 "warning", "notice", "info", "debug"
107};
108
Willy Tarreau570f2212013-06-10 16:42:09 +0200109const char sess_term_cond[16] = "-LcCsSPRIDKUIIII"; /* normal, Local, CliTo, CliErr, SrvTo, SrvErr, PxErr, Resource, Internal, Down, Killed, Up, -- */
Willy Tarreaub8750a82006-09-03 09:56:00 +0200110const char sess_fin_state[8] = "-RCHDLQT"; /* cliRequest, srvConnect, srvHeader, Data, Last, Queue, Tarpit */
Willy Tarreaubaaee002006-06-26 02:48:02 +0200111
William Lallemand723b73a2012-02-08 16:37:49 +0100112
113/* log_format */
114struct logformat_type {
115 char *name;
116 int type;
William Lallemandbddd4fd2012-02-27 11:23:10 +0100117 int mode;
William Lallemand5e19a282012-04-02 16:22:10 +0200118 int lw; /* logwait bitsfield */
William Lallemandb7ff6a32012-03-02 14:35:21 +0100119 int (*config_callback)(struct logformat_node *node, struct proxy *curproxy);
Willy Tarreau2beef582012-12-20 17:22:52 +0100120 const char *replace_by; /* new option to use instead of old one */
William Lallemand723b73a2012-02-08 16:37:49 +0100121};
122
William Lallemandb7ff6a32012-03-02 14:35:21 +0100123int prepare_addrsource(struct logformat_node *node, struct proxy *curproxy);
124
William Lallemand723b73a2012-02-08 16:37:49 +0100125/* log_format variable names */
126static const struct logformat_type logformat_keywords[] = {
William Lallemand5e19a282012-04-02 16:22:10 +0200127 { "o", LOG_FMT_GLOBAL, PR_MODE_TCP, 0, NULL }, /* global option */
Willy Tarreau2beef582012-12-20 17:22:52 +0100128
129 /* please keep these lines sorted ! */
130 { "B", LOG_FMT_BYTES, PR_MODE_TCP, LW_BYTES, NULL }, /* bytes from server to client */
131 { "CC", LOG_FMT_CCLIENT, PR_MODE_HTTP, LW_REQHDR, NULL }, /* client cookie */
132 { "CS", LOG_FMT_CSERVER, PR_MODE_HTTP, LW_RSPHDR, NULL }, /* server cookie */
133 { "H", LOG_FMT_HOSTNAME, PR_MODE_TCP, LW_INIT, NULL }, /* Hostname */
Tim Duesterhuscf6e0c82020-03-13 12:34:24 +0100134 { "ID", LOG_FMT_UNIQUEID, PR_MODE_TCP, LW_BYTES, NULL }, /* Unique ID */
Willy Tarreau4bf99632014-06-13 12:21:40 +0200135 { "ST", LOG_FMT_STATUS, PR_MODE_TCP, LW_RESP, NULL }, /* status code */
William Lallemand5e19a282012-04-02 16:22:10 +0200136 { "T", LOG_FMT_DATEGMT, PR_MODE_TCP, LW_INIT, NULL }, /* date GMT */
Thierry FOURNIER / OZON.IO4cac3592016-07-28 17:19:45 +0200137 { "Ta", LOG_FMT_Ta, PR_MODE_HTTP, LW_BYTES, NULL }, /* Time active (tr to end) */
Willy Tarreau2beef582012-12-20 17:22:52 +0100138 { "Tc", LOG_FMT_TC, PR_MODE_TCP, LW_BYTES, NULL }, /* Tc */
Thierry FOURNIER / OZON.IO4cac3592016-07-28 17:19:45 +0200139 { "Th", LOG_FMT_Th, PR_MODE_TCP, LW_BYTES, NULL }, /* Time handshake */
140 { "Ti", LOG_FMT_Ti, PR_MODE_HTTP, LW_BYTES, NULL }, /* Time idle */
141 { "Tl", LOG_FMT_DATELOCAL, PR_MODE_TCP, LW_INIT, NULL }, /* date local timezone */
142 { "Tq", LOG_FMT_TQ, PR_MODE_HTTP, LW_BYTES, NULL }, /* Tq=Th+Ti+TR */
143 { "Tr", LOG_FMT_Tr, PR_MODE_HTTP, LW_BYTES, NULL }, /* Tr */
144 { "TR", LOG_FMT_TR, PR_MODE_HTTP, LW_BYTES, NULL }, /* Time to receive a valid request */
Willy Tarreau27b639d2016-05-17 17:55:27 +0200145 { "Td", LOG_FMT_TD, PR_MODE_TCP, LW_BYTES, NULL }, /* Td = Tt - (Tq + Tw + Tc + Tr) */
Willy Tarreau2beef582012-12-20 17:22:52 +0100146 { "Ts", LOG_FMT_TS, PR_MODE_TCP, LW_INIT, NULL }, /* timestamp GMT */
William Lallemand5e19a282012-04-02 16:22:10 +0200147 { "Tt", LOG_FMT_TT, PR_MODE_TCP, LW_BYTES, NULL }, /* Tt */
Damien Claisse57c8eb92020-04-28 12:09:19 +0000148 { "Tu", LOG_FMT_TU, PR_MODE_TCP, LW_BYTES, NULL }, /* Tu = Tt -Ti */
Willy Tarreau2beef582012-12-20 17:22:52 +0100149 { "Tw", LOG_FMT_TW, PR_MODE_TCP, LW_BYTES, NULL }, /* Tw */
150 { "U", LOG_FMT_BYTES_UP, PR_MODE_TCP, LW_BYTES, NULL }, /* bytes from client to server */
William Lallemand5e19a282012-04-02 16:22:10 +0200151 { "ac", LOG_FMT_ACTCONN, PR_MODE_TCP, LW_BYTES, NULL }, /* actconn */
Willy Tarreau2beef582012-12-20 17:22:52 +0100152 { "b", LOG_FMT_BACKEND, PR_MODE_TCP, LW_INIT, NULL }, /* backend */
William Lallemand5e19a282012-04-02 16:22:10 +0200153 { "bc", LOG_FMT_BECONN, PR_MODE_TCP, LW_BYTES, NULL }, /* beconn */
Willy Tarreau2beef582012-12-20 17:22:52 +0100154 { "bi", LOG_FMT_BACKENDIP, PR_MODE_TCP, LW_BCKIP, prepare_addrsource }, /* backend source ip */
155 { "bp", LOG_FMT_BACKENDPORT, PR_MODE_TCP, LW_BCKIP, prepare_addrsource }, /* backend source port */
William Lallemand5e19a282012-04-02 16:22:10 +0200156 { "bq", LOG_FMT_BCKQUEUE, PR_MODE_TCP, LW_BYTES, NULL }, /* backend_queue */
Willy Tarreaud02286d2017-06-23 11:23:43 +0200157 { "ci", LOG_FMT_CLIENTIP, PR_MODE_TCP, LW_CLIP | LW_XPRT, NULL }, /* client ip */
158 { "cp", LOG_FMT_CLIENTPORT, PR_MODE_TCP, LW_CLIP | LW_XPRT, NULL }, /* client port */
Willy Tarreau2beef582012-12-20 17:22:52 +0100159 { "f", LOG_FMT_FRONTEND, PR_MODE_TCP, LW_INIT, NULL }, /* frontend */
160 { "fc", LOG_FMT_FECONN, PR_MODE_TCP, LW_BYTES, NULL }, /* feconn */
Willy Tarreaud02286d2017-06-23 11:23:43 +0200161 { "fi", LOG_FMT_FRONTENDIP, PR_MODE_TCP, LW_FRTIP | LW_XPRT, NULL }, /* frontend ip */
162 { "fp", LOG_FMT_FRONTENDPORT, PR_MODE_TCP, LW_FRTIP | LW_XPRT, NULL }, /* frontend port */
Willy Tarreau2beef582012-12-20 17:22:52 +0100163 { "ft", LOG_FMT_FRONTEND_XPRT, PR_MODE_TCP, LW_INIT, NULL }, /* frontend with transport mode */
Willy Tarreaud9ed3d22014-06-13 12:23:06 +0200164 { "hr", LOG_FMT_HDRREQUEST, PR_MODE_TCP, LW_REQHDR, NULL }, /* header request */
165 { "hrl", LOG_FMT_HDRREQUESTLIST, PR_MODE_TCP, LW_REQHDR, NULL }, /* header request list */
166 { "hs", LOG_FMT_HDRRESPONS, PR_MODE_TCP, LW_RSPHDR, NULL }, /* header response */
167 { "hsl", LOG_FMT_HDRRESPONSLIST, PR_MODE_TCP, LW_RSPHDR, NULL }, /* header response list */
Andrew Hayworth0ebc55f2015-04-27 21:37:03 +0000168 { "HM", LOG_FMT_HTTP_METHOD, PR_MODE_HTTP, LW_REQ, NULL }, /* HTTP method */
169 { "HP", LOG_FMT_HTTP_PATH, PR_MODE_HTTP, LW_REQ, NULL }, /* HTTP path */
Andrew Hayworthe63ac872015-07-31 16:14:16 +0000170 { "HQ", LOG_FMT_HTTP_QUERY, PR_MODE_HTTP, LW_REQ, NULL }, /* HTTP query */
Andrew Hayworth0ebc55f2015-04-27 21:37:03 +0000171 { "HU", LOG_FMT_HTTP_URI, PR_MODE_HTTP, LW_REQ, NULL }, /* HTTP full URI */
172 { "HV", LOG_FMT_HTTP_VERSION, PR_MODE_HTTP, LW_REQ, NULL }, /* HTTP version */
Willy Tarreau7346acb2014-08-28 15:03:15 +0200173 { "lc", LOG_FMT_LOGCNT, PR_MODE_TCP, LW_INIT, NULL }, /* log counter */
Willy Tarreau2beef582012-12-20 17:22:52 +0100174 { "ms", LOG_FMT_MS, PR_MODE_TCP, LW_INIT, NULL }, /* accept date millisecond */
William Lallemand5e19a282012-04-02 16:22:10 +0200175 { "pid", LOG_FMT_PID, PR_MODE_TCP, LW_INIT, NULL }, /* log pid */
Willy Tarreau2beef582012-12-20 17:22:52 +0100176 { "r", LOG_FMT_REQ, PR_MODE_HTTP, LW_REQ, NULL }, /* request */
177 { "rc", LOG_FMT_RETRIES, PR_MODE_TCP, LW_BYTES, NULL }, /* retries */
Willy Tarreau1f0da242014-01-25 11:01:50 +0100178 { "rt", LOG_FMT_COUNTER, PR_MODE_TCP, LW_REQ, NULL }, /* request counter (HTTP or TCP session) */
Willy Tarreau2beef582012-12-20 17:22:52 +0100179 { "s", LOG_FMT_SERVER, PR_MODE_TCP, LW_SVID, NULL }, /* server */
180 { "sc", LOG_FMT_SRVCONN, PR_MODE_TCP, LW_BYTES, NULL }, /* srv_conn */
181 { "si", LOG_FMT_SERVERIP, PR_MODE_TCP, LW_SVIP, NULL }, /* server destination ip */
182 { "sp", LOG_FMT_SERVERPORT, PR_MODE_TCP, LW_SVIP, NULL }, /* server destination port */
183 { "sq", LOG_FMT_SRVQUEUE, PR_MODE_TCP, LW_BYTES, NULL }, /* srv_queue */
Willy Tarreauffc3fcd2012-10-12 20:17:54 +0200184 { "sslc", LOG_FMT_SSL_CIPHER, PR_MODE_TCP, LW_XPRT, NULL }, /* client-side SSL ciphers */
185 { "sslv", LOG_FMT_SSL_VERSION, PR_MODE_TCP, LW_XPRT, NULL }, /* client-side SSL protocol version */
Willy Tarreau2beef582012-12-20 17:22:52 +0100186 { "t", LOG_FMT_DATE, PR_MODE_TCP, LW_INIT, NULL }, /* date */
Thierry FOURNIER / OZON.IO4cac3592016-07-28 17:19:45 +0200187 { "tr", LOG_FMT_tr, PR_MODE_HTTP, LW_INIT, NULL }, /* date of start of request */
188 { "trg",LOG_FMT_trg, PR_MODE_HTTP, LW_INIT, NULL }, /* date of start of request, GMT */
189 { "trl",LOG_FMT_trl, PR_MODE_HTTP, LW_INIT, NULL }, /* date of start of request, local */
Willy Tarreau2beef582012-12-20 17:22:52 +0100190 { "ts", LOG_FMT_TERMSTATE, PR_MODE_TCP, LW_BYTES, NULL },/* termination state */
191 { "tsc", LOG_FMT_TERMSTATE_CK, PR_MODE_TCP, LW_INIT, NULL },/* termination state */
192
193 /* The following tags are deprecated and will be removed soon */
194 { "Bi", LOG_FMT_BACKENDIP, PR_MODE_TCP, LW_BCKIP, prepare_addrsource, "bi" }, /* backend source ip */
195 { "Bp", LOG_FMT_BACKENDPORT, PR_MODE_TCP, LW_BCKIP, prepare_addrsource, "bp" }, /* backend source port */
Willy Tarreaud02286d2017-06-23 11:23:43 +0200196 { "Ci", LOG_FMT_CLIENTIP, PR_MODE_TCP, LW_CLIP | LW_XPRT, NULL, "ci" }, /* client ip */
197 { "Cp", LOG_FMT_CLIENTPORT, PR_MODE_TCP, LW_CLIP | LW_XPRT, NULL, "cp" }, /* client port */
198 { "Fi", LOG_FMT_FRONTENDIP, PR_MODE_TCP, LW_FRTIP | LW_XPRT, NULL, "fi" }, /* frontend ip */
199 { "Fp", LOG_FMT_FRONTENDPORT, PR_MODE_TCP, LW_FRTIP | LW_XPRT, NULL, "fp" }, /* frontend port */
Willy Tarreau2beef582012-12-20 17:22:52 +0100200 { "Si", LOG_FMT_SERVERIP, PR_MODE_TCP, LW_SVIP, NULL, "si" }, /* server destination ip */
201 { "Sp", LOG_FMT_SERVERPORT, PR_MODE_TCP, LW_SVIP, NULL, "sp" }, /* server destination port */
202 { "cc", LOG_FMT_CCLIENT, PR_MODE_HTTP, LW_REQHDR, NULL, "CC" }, /* client cookie */
203 { "cs", LOG_FMT_CSERVER, PR_MODE_HTTP, LW_RSPHDR, NULL, "CS" }, /* server cookie */
204 { "st", LOG_FMT_STATUS, PR_MODE_HTTP, LW_RESP, NULL, "ST" }, /* status code */
William Lallemand5e19a282012-04-02 16:22:10 +0200205 { 0, 0, 0, 0, NULL }
William Lallemand723b73a2012-02-08 16:37:49 +0100206};
207
Thierry FOURNIER / OZON.IO4cac3592016-07-28 17:19:45 +0200208char default_http_log_format[] = "%ci:%cp [%tr] %ft %b/%s %TR/%Tw/%Tc/%Tr/%Ta %ST %B %CC %CS %tsc %ac/%fc/%bc/%sc/%rc %sq/%bq %hr %hs %{+Q}r"; // default format
209char clf_http_log_format[] = "%{+Q}o %{-Q}ci - - [%trg] %r %ST %B \"\" \"\" %cp %ms %ft %b %s %TR %Tw %Tc %Tr %Ta %tsc %ac %fc %bc %sc %rc %sq %bq %CC %CS %hrl %hsl";
Willy Tarreau2beef582012-12-20 17:22:52 +0100210char default_tcp_log_format[] = "%ci:%cp [%t] %ft %b/%s %Tw/%Tc/%Tt %B %ts %ac/%fc/%bc/%sc/%rc %sq/%bq";
William Lallemand723b73a2012-02-08 16:37:49 +0100211char *log_format = NULL;
212
Dragan Dosen0b85ece2015-09-25 19:17:44 +0200213/* Default string used for structured-data part in RFC5424 formatted
214 * syslog messages.
215 */
216char default_rfc5424_sd_log_format[] = "- ";
Dragan Dosen1322d092015-09-22 16:05:32 +0200217
Willy Tarreau13ef7732018-11-12 07:25:28 +0100218/* total number of dropped logs */
219unsigned int dropped_logs = 0;
220
Dragan Dosen59cee972015-09-19 22:09:02 +0200221/* This is a global syslog message buffer, common to all outgoing
222 * messages. It contains only the data part.
Willy Tarreaub1a2faf2012-03-19 16:51:53 +0100223 */
Christopher Fauletf8188c62017-06-02 16:20:16 +0200224THREAD_LOCAL char *logline = NULL;
Willy Tarreaub1a2faf2012-03-19 16:51:53 +0100225
Dragan Dosen0b85ece2015-09-25 19:17:44 +0200226/* A global syslog message buffer, common to all RFC5424 syslog messages.
227 * Currently, it is used for generating the structured-data part.
228 */
Christopher Fauletf8188c62017-06-02 16:20:16 +0200229THREAD_LOCAL char *logline_rfc5424 = NULL;
Dragan Dosen0b85ece2015-09-25 19:17:44 +0200230
Christopher Fauletd4696382017-10-24 11:44:05 +0200231/* A global buffer used to store all startup alerts/warnings. It will then be
232 * retrieve on the CLI. */
Willy Tarreau869efd52019-11-15 15:16:57 +0100233static struct ring *startup_logs = NULL;
Christopher Fauletd4696382017-10-24 11:44:05 +0200234
William Lallemand723b73a2012-02-08 16:37:49 +0100235struct logformat_var_args {
236 char *name;
237 int mask;
238};
239
240struct logformat_var_args var_args_list[] = {
241// global
242 { "M", LOG_OPT_MANDATORY },
243 { "Q", LOG_OPT_QUOTE },
William Lallemand5f232402012-04-05 18:02:55 +0200244 { "X", LOG_OPT_HEXA },
Dragan Dosen835b9212016-02-12 13:23:03 +0100245 { "E", LOG_OPT_ESC },
William Lallemand723b73a2012-02-08 16:37:49 +0100246 { 0, 0 }
247};
248
Willy Tarreaub1f3af22013-04-12 18:30:32 +0200249/* return the name of the directive used in the current proxy for which we're
250 * currently parsing a header, when it is known.
251 */
252static inline const char *fmt_directive(const struct proxy *curproxy)
253{
Willy Tarreaubf0addb2013-12-02 12:24:54 +0100254 switch (curproxy->conf.args.ctx) {
Willy Tarreau53e1a6d2015-07-09 11:20:00 +0200255 case ARGC_ACL:
256 return "acl";
257 case ARGC_STK:
258 return "stick";
259 case ARGC_TRK:
260 return "track-sc";
261 case ARGC_LOG:
262 return "log-format";
Dragan Dosen0b85ece2015-09-25 19:17:44 +0200263 case ARGC_LOGSD:
264 return "log-format-sd";
Willy Tarreaubf0addb2013-12-02 12:24:54 +0100265 case ARGC_HRQ:
Thierry FOURNIER1c0054f2013-11-20 15:09:52 +0100266 return "http-request";
Willy Tarreaubf0addb2013-12-02 12:24:54 +0100267 case ARGC_HRS:
Thierry FOURNIER1c0054f2013-11-20 15:09:52 +0100268 return "http-response";
Willy Tarreau53e1a6d2015-07-09 11:20:00 +0200269 case ARGC_UIF:
270 return "unique-id-format";
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +0100271 case ARGC_RDR:
Willy Tarreau53e1a6d2015-07-09 11:20:00 +0200272 return "redirect";
273 case ARGC_CAP:
274 return "capture";
Willy Tarreau28d976d2015-07-09 11:39:33 +0200275 case ARGC_SRV:
276 return "server";
Christopher Fauletf7e4e7e2016-10-27 22:29:49 +0200277 case ARGC_SPOE:
278 return "spoe-message";
Thierry FOURNIER / OZON.IO4ed1c952016-11-24 23:57:54 +0100279 case ARGC_UBK:
280 return "use_backend";
Christopher Faulet3b967c12020-05-15 15:47:44 +0200281 case ARGC_HERR:
282 return "http-error";
Willy Tarreaubf0addb2013-12-02 12:24:54 +0100283 default:
Willy Tarreau53e1a6d2015-07-09 11:20:00 +0200284 return "undefined(please report this bug)"; /* must never happen */
Willy Tarreaubf0addb2013-12-02 12:24:54 +0100285 }
Willy Tarreaub1f3af22013-04-12 18:30:32 +0200286}
287
William Lallemand723b73a2012-02-08 16:37:49 +0100288/*
William Lallemandb7ff6a32012-03-02 14:35:21 +0100289 * callback used to configure addr source retrieval
290 */
291int prepare_addrsource(struct logformat_node *node, struct proxy *curproxy)
292{
293 curproxy->options2 |= PR_O2_SRC_ADDR;
294
295 return 0;
296}
297
298
299/*
Thierry FOURNIER / OZON.IObca46f02016-11-22 23:13:04 +0100300 * Parse args in a logformat_var. Returns 0 in error
301 * case, otherwise, it returns 1.
William Lallemand723b73a2012-02-08 16:37:49 +0100302 */
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100303int parse_logformat_var_args(char *args, struct logformat_node *node, char **err)
William Lallemand723b73a2012-02-08 16:37:49 +0100304{
305 int i = 0;
306 int end = 0;
307 int flags = 0; // 1 = + 2 = -
308 char *sp = NULL; // start pointer
309
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100310 if (args == NULL) {
311 memprintf(err, "internal error: parse_logformat_var_args() expects non null 'args'");
Thierry FOURNIER / OZON.IObca46f02016-11-22 23:13:04 +0100312 return 0;
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100313 }
William Lallemand723b73a2012-02-08 16:37:49 +0100314
315 while (1) {
316 if (*args == '\0')
317 end = 1;
318
319 if (*args == '+') {
320 // add flag
321 sp = args + 1;
322 flags = 1;
323 }
324 if (*args == '-') {
325 // delete flag
326 sp = args + 1;
327 flags = 2;
328 }
329
330 if (*args == '\0' || *args == ',') {
331 *args = '\0';
Willy Tarreau254d44c2012-12-20 18:19:26 +0100332 for (i = 0; sp && var_args_list[i].name; i++) {
William Lallemand723b73a2012-02-08 16:37:49 +0100333 if (strcmp(sp, var_args_list[i].name) == 0) {
334 if (flags == 1) {
335 node->options |= var_args_list[i].mask;
336 break;
337 } else if (flags == 2) {
338 node->options &= ~var_args_list[i].mask;
339 break;
340 }
341 }
342 }
343 sp = NULL;
344 if (end)
345 break;
346 }
Willy Tarreau254d44c2012-12-20 18:19:26 +0100347 args++;
William Lallemand723b73a2012-02-08 16:37:49 +0100348 }
Thierry FOURNIER / OZON.IObca46f02016-11-22 23:13:04 +0100349 return 1;
William Lallemand723b73a2012-02-08 16:37:49 +0100350}
351
352/*
Willy Tarreau8a3f52f2012-12-20 21:23:42 +0100353 * Parse a variable '%varname' or '%{args}varname' in log-format. The caller
354 * must pass the args part in the <arg> pointer with its length in <arg_len>,
355 * and varname with its length in <var> and <var_len> respectively. <arg> is
356 * ignored when arg_len is 0. Neither <var> nor <var_len> may be null.
Thierry FOURNIER / OZON.IOeca4d952016-11-22 22:06:04 +0100357 * Returns false in error case and err is filled, otherwise returns true.
William Lallemand723b73a2012-02-08 16:37:49 +0100358 */
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100359int parse_logformat_var(char *arg, int arg_len, char *var, int var_len, struct proxy *curproxy, struct list *list_format, int *defoptions, char **err)
William Lallemand723b73a2012-02-08 16:37:49 +0100360{
Willy Tarreau8a3f52f2012-12-20 21:23:42 +0100361 int j;
Dragan Dosen61302da2019-04-30 00:40:02 +0200362 struct logformat_node *node = NULL;
William Lallemand723b73a2012-02-08 16:37:49 +0100363
Willy Tarreau8a3f52f2012-12-20 21:23:42 +0100364 for (j = 0; logformat_keywords[j].name; j++) { // search a log type
365 if (strlen(logformat_keywords[j].name) == var_len &&
366 strncmp(var, logformat_keywords[j].name, var_len) == 0) {
367 if (logformat_keywords[j].mode != PR_MODE_HTTP || curproxy->mode == PR_MODE_HTTP) {
Vincent Bernat02779b62016-04-03 13:48:43 +0200368 node = calloc(1, sizeof(*node));
Thierry FOURNIER / OZON.IO9cbfef22016-11-22 23:24:10 +0100369 if (!node) {
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100370 memprintf(err, "out of memory error");
Dragan Dosen61302da2019-04-30 00:40:02 +0200371 goto error_free;
Thierry FOURNIER / OZON.IO9cbfef22016-11-22 23:24:10 +0100372 }
Willy Tarreau8a3f52f2012-12-20 21:23:42 +0100373 node->type = logformat_keywords[j].type;
374 node->options = *defoptions;
375 if (arg_len) {
376 node->arg = my_strndup(arg, arg_len);
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100377 if (!parse_logformat_var_args(node->arg, node, err))
Dragan Dosen61302da2019-04-30 00:40:02 +0200378 goto error_free;
Willy Tarreau8a3f52f2012-12-20 21:23:42 +0100379 }
380 if (node->type == LOG_FMT_GLOBAL) {
381 *defoptions = node->options;
382 free(node->arg);
383 free(node);
384 } else {
385 if (logformat_keywords[j].config_callback &&
386 logformat_keywords[j].config_callback(node, curproxy) != 0) {
Dragan Dosen61302da2019-04-30 00:40:02 +0200387 goto error_free;
William Lallemand723b73a2012-02-08 16:37:49 +0100388 }
Willy Tarreau8a3f52f2012-12-20 21:23:42 +0100389 curproxy->to_log |= logformat_keywords[j].lw;
390 LIST_ADDQ(list_format, &node->list);
William Lallemand723b73a2012-02-08 16:37:49 +0100391 }
Willy Tarreau8a3f52f2012-12-20 21:23:42 +0100392 if (logformat_keywords[j].replace_by)
Christopher Faulet767a84b2017-11-24 16:50:31 +0100393 ha_warning("parsing [%s:%d] : deprecated variable '%s' in '%s', please replace it with '%s'.\n",
394 curproxy->conf.args.file, curproxy->conf.args.line,
395 logformat_keywords[j].name, fmt_directive(curproxy), logformat_keywords[j].replace_by);
Thierry FOURNIER / OZON.IOeca4d952016-11-22 22:06:04 +0100396 return 1;
Willy Tarreau8a3f52f2012-12-20 21:23:42 +0100397 } else {
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100398 memprintf(err, "format variable '%s' is reserved for HTTP mode",
399 logformat_keywords[j].name);
Dragan Dosen61302da2019-04-30 00:40:02 +0200400 goto error_free;
William Lallemand723b73a2012-02-08 16:37:49 +0100401 }
William Lallemand723b73a2012-02-08 16:37:49 +0100402 }
403 }
Willy Tarreau8a3f52f2012-12-20 21:23:42 +0100404
405 j = var[var_len];
406 var[var_len] = 0;
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100407 memprintf(err, "no such format variable '%s'. If you wanted to emit the '%%' character verbatim, you need to use '%%%%'", var);
Willy Tarreau8a3f52f2012-12-20 21:23:42 +0100408 var[var_len] = j;
Dragan Dosen61302da2019-04-30 00:40:02 +0200409
410 error_free:
411 if (node) {
412 free(node->arg);
413 free(node);
414 }
Thierry FOURNIER / OZON.IOeca4d952016-11-22 22:06:04 +0100415 return 0;
William Lallemand723b73a2012-02-08 16:37:49 +0100416}
417
418/*
419 * push to the logformat linked list
420 *
421 * start: start pointer
422 * end: end text pointer
423 * type: string type
William Lallemand1d705562012-03-12 12:46:41 +0100424 * list_format: destination list
William Lallemand723b73a2012-02-08 16:37:49 +0100425 *
426 * LOG_TEXT: copy chars from start to end excluding end.
427 *
428*/
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100429int add_to_logformat_list(char *start, char *end, int type, struct list *list_format, char **err)
William Lallemand723b73a2012-02-08 16:37:49 +0100430{
431 char *str;
432
Willy Tarreaua3571662012-12-20 21:59:12 +0100433 if (type == LF_TEXT) { /* type text */
Vincent Bernat02779b62016-04-03 13:48:43 +0200434 struct logformat_node *node = calloc(1, sizeof(*node));
Thierry FOURNIER / OZON.IO9cbfef22016-11-22 23:24:10 +0100435 if (!node) {
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100436 memprintf(err, "out of memory error");
Thierry FOURNIER / OZON.IO9cbfef22016-11-22 23:24:10 +0100437 return 0;
438 }
Vincent Bernat02779b62016-04-03 13:48:43 +0200439 str = calloc(1, end - start + 1);
William Lallemand723b73a2012-02-08 16:37:49 +0100440 strncpy(str, start, end - start);
William Lallemand723b73a2012-02-08 16:37:49 +0100441 str[end - start] = '\0';
442 node->arg = str;
William Lallemand1d705562012-03-12 12:46:41 +0100443 node->type = LOG_FMT_TEXT; // type string
444 LIST_ADDQ(list_format, &node->list);
Willy Tarreaua3571662012-12-20 21:59:12 +0100445 } else if (type == LF_SEPARATOR) {
Vincent Bernat02779b62016-04-03 13:48:43 +0200446 struct logformat_node *node = calloc(1, sizeof(*node));
Thierry FOURNIER / OZON.IO9cbfef22016-11-22 23:24:10 +0100447 if (!node) {
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100448 memprintf(err, "out of memory error");
Thierry FOURNIER / OZON.IO9cbfef22016-11-22 23:24:10 +0100449 return 0;
450 }
William Lallemand1d705562012-03-12 12:46:41 +0100451 node->type = LOG_FMT_SEPARATOR;
452 LIST_ADDQ(list_format, &node->list);
William Lallemand723b73a2012-02-08 16:37:49 +0100453 }
Thierry FOURNIER / OZON.IOa2c38d72016-11-22 23:11:21 +0100454 return 1;
William Lallemand723b73a2012-02-08 16:37:49 +0100455}
456
457/*
Willy Tarreauc8368452012-12-21 00:09:23 +0100458 * Parse the sample fetch expression <text> and add a node to <list_format> upon
459 * success. At the moment, sample converters are not yet supported but fetch arguments
Willy Tarreaucd0d2ed2020-02-14 17:33:06 +0100460 * should work. The curpx->conf.args.ctx must be set by the caller. If an end pointer
461 * is passed in <endptr>, it will be updated with the pointer to the first character
462 * not part of the sample expression.
Thierry FOURNIER / OZON.IOa2c38d72016-11-22 23:11:21 +0100463 *
464 * In error case, the function returns 0, otherwise it returns 1.
Willy Tarreauc8368452012-12-21 00:09:23 +0100465 */
Willy Tarreaucd0d2ed2020-02-14 17:33:06 +0100466int add_sample_to_logformat_list(char *text, char *arg, int arg_len, struct proxy *curpx, struct list *list_format, int options, int cap, char **err, char **endptr)
Willy Tarreauc8368452012-12-21 00:09:23 +0100467{
468 char *cmd[2];
Dragan Dosen61302da2019-04-30 00:40:02 +0200469 struct sample_expr *expr = NULL;
470 struct logformat_node *node = NULL;
Willy Tarreauc8368452012-12-21 00:09:23 +0100471 int cmd_arg;
472
473 cmd[0] = text;
474 cmd[1] = "";
475 cmd_arg = 0;
476
Willy Tarreaucd0d2ed2020-02-14 17:33:06 +0100477 expr = sample_parse_expr(cmd, &cmd_arg, curpx->conf.args.file, curpx->conf.args.line, err, &curpx->conf.args, endptr);
Willy Tarreauc8368452012-12-21 00:09:23 +0100478 if (!expr) {
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100479 memprintf(err, "failed to parse sample expression <%s> : %s", text, *err);
Dragan Dosen61302da2019-04-30 00:40:02 +0200480 goto error_free;
Willy Tarreauc8368452012-12-21 00:09:23 +0100481 }
482
Vincent Bernat02779b62016-04-03 13:48:43 +0200483 node = calloc(1, sizeof(*node));
Thierry FOURNIER / OZON.IO9cbfef22016-11-22 23:24:10 +0100484 if (!node) {
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100485 memprintf(err, "out of memory error");
Dragan Dosen61302da2019-04-30 00:40:02 +0200486 goto error_free;
Thierry FOURNIER / OZON.IO9cbfef22016-11-22 23:24:10 +0100487 }
Willy Tarreauc8368452012-12-21 00:09:23 +0100488 node->type = LOG_FMT_EXPR;
489 node->expr = expr;
490 node->options = options;
491
492 if (arg_len) {
493 node->arg = my_strndup(arg, arg_len);
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100494 if (!parse_logformat_var_args(node->arg, node, err))
Dragan Dosen61302da2019-04-30 00:40:02 +0200495 goto error_free;
Willy Tarreauc8368452012-12-21 00:09:23 +0100496 }
Willy Tarreau434c57c2013-01-08 01:10:24 +0100497 if (expr->fetch->val & cap & SMP_VAL_REQUEST)
Willy Tarreauc8368452012-12-21 00:09:23 +0100498 node->options |= LOG_OPT_REQ_CAP; /* fetch method is request-compatible */
499
Willy Tarreau434c57c2013-01-08 01:10:24 +0100500 if (expr->fetch->val & cap & SMP_VAL_RESPONSE)
Willy Tarreauc8368452012-12-21 00:09:23 +0100501 node->options |= LOG_OPT_RES_CAP; /* fetch method is response-compatible */
502
Thierry FOURNIER / OZON.IOa2c38d72016-11-22 23:11:21 +0100503 if (!(expr->fetch->val & cap)) {
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100504 memprintf(err, "sample fetch <%s> may not be reliably used here because it needs '%s' which is not available here",
505 text, sample_src_names(expr->fetch->use));
Dragan Dosen61302da2019-04-30 00:40:02 +0200506 goto error_free;
Thierry FOURNIER / OZON.IOa2c38d72016-11-22 23:11:21 +0100507 }
Willy Tarreau434c57c2013-01-08 01:10:24 +0100508
Christopher Faulet711ed6a2019-07-16 14:16:10 +0200509 /* check if we need to allocate an http_txn struct for HTTP parsing */
Willy Tarreauc8368452012-12-21 00:09:23 +0100510 /* Note, we may also need to set curpx->to_log with certain fetches */
Willy Tarreau25320b22013-03-24 07:22:08 +0100511 curpx->http_needed |= !!(expr->fetch->use & SMP_USE_HTTP_ANY);
Willy Tarreauc8368452012-12-21 00:09:23 +0100512
William Lallemand65ad6e12014-01-31 15:08:02 +0100513 /* FIXME: temporary workaround for missing LW_XPRT and LW_REQ flags
514 * needed with some sample fetches (eg: ssl*). We always set it for
515 * now on, but this will leave with sample capabilities soon.
Willy Tarreau1f31c732013-01-10 16:22:27 +0100516 */
517 curpx->to_log |= LW_XPRT;
Christopher Fauletd2236cd2020-04-06 18:29:14 +0200518 if (curpx->http_needed)
519 curpx->to_log |= LW_REQ;
Willy Tarreauc8368452012-12-21 00:09:23 +0100520 LIST_ADDQ(list_format, &node->list);
Thierry FOURNIER / OZON.IOa2c38d72016-11-22 23:11:21 +0100521 return 1;
Dragan Dosen61302da2019-04-30 00:40:02 +0200522
523 error_free:
524 release_sample_expr(expr);
525 if (node) {
526 free(node->arg);
527 free(node);
528 }
529 return 0;
Willy Tarreauc8368452012-12-21 00:09:23 +0100530}
531
532/*
William Lallemand723b73a2012-02-08 16:37:49 +0100533 * Parse the log_format string and fill a linked list.
534 * Variable name are preceded by % and composed by characters [a-zA-Z0-9]* : %varname
Willy Tarreaua4312fa2013-04-02 16:34:32 +0200535 * You can set arguments using { } : %{many arguments}varname.
536 * The curproxy->conf.args.ctx must be set by the caller.
William Lallemand1d705562012-03-12 12:46:41 +0100537 *
Ilya Shipitsinae40dbc2020-04-04 12:59:53 +0500538 * fmt: the string to parse
William Lallemand1d705562012-03-12 12:46:41 +0100539 * curproxy: the proxy affected
540 * list_format: the destination list
Willy Tarreau6cbbdbf2013-02-05 18:52:25 +0100541 * options: LOG_OPT_* to force on every node
Willy Tarreau434c57c2013-01-08 01:10:24 +0100542 * cap: all SMP_VAL_* flags supported by the consumer
Thierry FOURNIER / OZON.IOa2c38d72016-11-22 23:11:21 +0100543 *
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100544 * The function returns 1 in success case, otherwise, it returns 0 and err is filled.
William Lallemand723b73a2012-02-08 16:37:49 +0100545 */
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100546int parse_logformat_string(const char *fmt, struct proxy *curproxy, struct list *list_format, int options, int cap, char **err)
William Lallemand723b73a2012-02-08 16:37:49 +0100547{
Willy Tarreaub83bc1e2012-12-24 12:36:33 +0100548 char *sp, *str, *backfmt; /* start pointer for text parts */
Willy Tarreau8a3f52f2012-12-20 21:23:42 +0100549 char *arg = NULL; /* start pointer for args */
550 char *var = NULL; /* start pointer for vars */
551 int arg_len = 0;
552 int var_len = 0;
553 int cformat; /* current token format */
554 int pformat; /* previous token format */
William Lallemand723b73a2012-02-08 16:37:49 +0100555 struct logformat_node *tmplf, *back;
556
Willy Tarreaub83bc1e2012-12-24 12:36:33 +0100557 sp = str = backfmt = strdup(fmt);
Thierry FOURNIER / OZON.IO9cbfef22016-11-22 23:24:10 +0100558 if (!str) {
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100559 memprintf(err, "out of memory error");
Thierry FOURNIER / OZON.IO9cbfef22016-11-22 23:24:10 +0100560 return 0;
561 }
William Lallemand1dc00ef2012-08-09 16:41:35 +0200562 curproxy->to_log |= LW_INIT;
William Lallemand5e19a282012-04-02 16:22:10 +0200563
William Lallemand723b73a2012-02-08 16:37:49 +0100564 /* flush the list first. */
William Lallemand1d705562012-03-12 12:46:41 +0100565 list_for_each_entry_safe(tmplf, back, list_format, list) {
William Lallemand723b73a2012-02-08 16:37:49 +0100566 LIST_DEL(&tmplf->list);
Dragan Dosen61302da2019-04-30 00:40:02 +0200567 release_sample_expr(tmplf->expr);
568 free(tmplf->arg);
William Lallemand723b73a2012-02-08 16:37:49 +0100569 free(tmplf);
570 }
571
Willy Tarreau8a3f52f2012-12-20 21:23:42 +0100572 for (cformat = LF_INIT; cformat != LF_END; str++) {
William Lallemand723b73a2012-02-08 16:37:49 +0100573 pformat = cformat;
574
Willy Tarreau8a3f52f2012-12-20 21:23:42 +0100575 if (!*str)
576 cformat = LF_END; // preset it to save all states from doing this
William Lallemand723b73a2012-02-08 16:37:49 +0100577
Joseph Herlant85b40592018-11-15 12:10:04 -0800578 /* The principle of the two-step state machine below is to first detect a change, and
Willy Tarreau8a3f52f2012-12-20 21:23:42 +0100579 * second have all common paths processed at one place. The common paths are the ones
580 * encountered in text areas (LF_INIT, LF_TEXT, LF_SEPARATOR) and at the end (LF_END).
581 * We use the common LF_INIT state to dispatch to the different final states.
582 */
583 switch (pformat) {
584 case LF_STARTVAR: // text immediately following a '%'
Willy Tarreauc8368452012-12-21 00:09:23 +0100585 arg = NULL; var = NULL;
Willy Tarreau8a3f52f2012-12-20 21:23:42 +0100586 arg_len = var_len = 0;
587 if (*str == '{') { // optional argument
588 cformat = LF_STARG;
589 arg = str + 1;
William Lallemand723b73a2012-02-08 16:37:49 +0100590 }
Willy Tarreauc8368452012-12-21 00:09:23 +0100591 else if (*str == '[') {
592 cformat = LF_STEXPR;
593 var = str + 1; // store expr in variable name
594 }
Willy Tarreau0f28f822013-12-16 01:38:33 +0100595 else if (isalpha((unsigned char)*str)) { // variable name
William Lallemand723b73a2012-02-08 16:37:49 +0100596 cformat = LF_VAR;
Willy Tarreau8a3f52f2012-12-20 21:23:42 +0100597 var = str;
William Lallemand723b73a2012-02-08 16:37:49 +0100598 }
Willy Tarreau8a3f52f2012-12-20 21:23:42 +0100599 else if (*str == '%')
Ilya Shipitsin856aabc2020-04-16 23:51:34 +0500600 cformat = LF_TEXT; // convert this character to a literal (useful for '%')
Willy Tarreau0f28f822013-12-16 01:38:33 +0100601 else if (isdigit((unsigned char)*str) || *str == ' ' || *str == '\t') {
Willy Tarreau06d97f92013-12-02 17:45:48 +0100602 /* single '%' followed by blank or digit, send them both */
603 cformat = LF_TEXT;
604 pformat = LF_TEXT; /* finally we include the previous char as well */
605 sp = str - 1; /* send both the '%' and the current char */
Jim Freemana2278c82017-04-15 08:01:59 -0600606 memprintf(err, "unexpected variable name near '%c' at position %d line : '%s'. Maybe you want to write a single '%%', use the syntax '%%%%'",
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100607 *str, (int)(str - backfmt), fmt);
Willy Tarreau51013e82019-12-11 12:05:39 +0100608 goto fail;
Willy Tarreau06d97f92013-12-02 17:45:48 +0100609
610 }
Willy Tarreau8a3f52f2012-12-20 21:23:42 +0100611 else
Ilya Shipitsin856aabc2020-04-16 23:51:34 +0500612 cformat = LF_INIT; // handle other cases of literals
Willy Tarreau8a3f52f2012-12-20 21:23:42 +0100613 break;
614
615 case LF_STARG: // text immediately following '%{'
616 if (*str == '}') { // end of arg
William Lallemand723b73a2012-02-08 16:37:49 +0100617 cformat = LF_EDARG;
Willy Tarreau8a3f52f2012-12-20 21:23:42 +0100618 arg_len = str - arg;
619 *str = 0; // used for reporting errors
William Lallemand723b73a2012-02-08 16:37:49 +0100620 }
Willy Tarreau8a3f52f2012-12-20 21:23:42 +0100621 break;
622
623 case LF_EDARG: // text immediately following '%{arg}'
Willy Tarreauc8368452012-12-21 00:09:23 +0100624 if (*str == '[') {
625 cformat = LF_STEXPR;
626 var = str + 1; // store expr in variable name
627 break;
628 }
Willy Tarreau0f28f822013-12-16 01:38:33 +0100629 else if (isalnum((unsigned char)*str)) { // variable name
William Lallemand723b73a2012-02-08 16:37:49 +0100630 cformat = LF_VAR;
Willy Tarreau8a3f52f2012-12-20 21:23:42 +0100631 var = str;
632 break;
633 }
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100634 memprintf(err, "parse argument modifier without variable name near '%%{%s}'", arg);
Willy Tarreau51013e82019-12-11 12:05:39 +0100635 goto fail;
Willy Tarreau8a3f52f2012-12-20 21:23:42 +0100636
Willy Tarreauc8368452012-12-21 00:09:23 +0100637 case LF_STEXPR: // text immediately following '%['
Willy Tarreaucd0d2ed2020-02-14 17:33:06 +0100638 /* the whole sample expression is parsed at once,
639 * returning the pointer to the first character not
640 * part of the expression, which MUST be the trailing
641 * angle bracket.
642 */
643 if (!add_sample_to_logformat_list(var, arg, arg_len, curproxy, list_format, options, cap, err, &str))
644 goto fail;
645
646 if (*str == ']') {
647 // end of arg, go on with next state
648 cformat = pformat = LF_EDEXPR;
649 sp = str;
650 }
651 else {
652 char c = *str;
653 *str = 0;
Willy Tarreau90807112020-02-25 08:16:33 +0100654 if (isprint((unsigned char)c))
Willy Tarreaucd0d2ed2020-02-14 17:33:06 +0100655 memprintf(err, "expected ']' after '%s', but found '%c'", var, c);
656 else
657 memprintf(err, "missing ']' after '%s'", var);
Dragan Dosen2866acf2020-06-30 21:16:43 +0200658 goto fail;
Willy Tarreauc8368452012-12-21 00:09:23 +0100659 }
660 break;
661
Willy Tarreau8a3f52f2012-12-20 21:23:42 +0100662 case LF_VAR: // text part of a variable name
663 var_len = str - var;
Willy Tarreau0f28f822013-12-16 01:38:33 +0100664 if (!isalnum((unsigned char)*str))
Willy Tarreau8a3f52f2012-12-20 21:23:42 +0100665 cformat = LF_INIT; // not variable name anymore
666 break;
667
Willy Tarreauc8368452012-12-21 00:09:23 +0100668 default: // LF_INIT, LF_TEXT, LF_SEPARATOR, LF_END, LF_EDEXPR
Willy Tarreau8a3f52f2012-12-20 21:23:42 +0100669 cformat = LF_INIT;
670 }
671
672 if (cformat == LF_INIT) { /* resynchronize state to text/sep/startvar */
673 switch (*str) {
674 case '%': cformat = LF_STARTVAR; break;
Willy Tarreau8a3f52f2012-12-20 21:23:42 +0100675 case 0 : cformat = LF_END; break;
Dragan Dosen1e3b16f2020-06-23 18:16:44 +0200676 case ' ':
677 if (options & LOG_OPT_MERGE_SPACES) {
678 cformat = LF_SEPARATOR;
679 break;
680 }
681 /* fall through */
Willy Tarreau8a3f52f2012-12-20 21:23:42 +0100682 default : cformat = LF_TEXT; break;
William Lallemand723b73a2012-02-08 16:37:49 +0100683 }
684 }
685
Willy Tarreau8a3f52f2012-12-20 21:23:42 +0100686 if (cformat != pformat || pformat == LF_SEPARATOR) {
687 switch (pformat) {
688 case LF_VAR:
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100689 if (!parse_logformat_var(arg, arg_len, var, var_len, curproxy, list_format, &options, err))
Willy Tarreau51013e82019-12-11 12:05:39 +0100690 goto fail;
Willy Tarreau8a3f52f2012-12-20 21:23:42 +0100691 break;
692 case LF_TEXT:
693 case LF_SEPARATOR:
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100694 if (!add_to_logformat_list(sp, str, pformat, list_format, err))
Willy Tarreau51013e82019-12-11 12:05:39 +0100695 goto fail;
Willy Tarreau8a3f52f2012-12-20 21:23:42 +0100696 break;
697 }
698 sp = str; /* new start of text at every state switch and at every separator */
William Lallemand723b73a2012-02-08 16:37:49 +0100699 }
700 }
Willy Tarreau8a3f52f2012-12-20 21:23:42 +0100701
Thierry FOURNIER / OZON.IOa2c38d72016-11-22 23:11:21 +0100702 if (pformat == LF_STARTVAR || pformat == LF_STARG || pformat == LF_STEXPR) {
Thierry FOURNIER / OZON.IO8a4e4422016-11-23 00:41:28 +0100703 memprintf(err, "truncated line after '%s'", var ? var : arg ? arg : "%");
Willy Tarreau51013e82019-12-11 12:05:39 +0100704 goto fail;
Thierry FOURNIER / OZON.IOa2c38d72016-11-22 23:11:21 +0100705 }
Willy Tarreaub83bc1e2012-12-24 12:36:33 +0100706 free(backfmt);
Thierry FOURNIER / OZON.IOa2c38d72016-11-22 23:11:21 +0100707
708 return 1;
Willy Tarreau51013e82019-12-11 12:05:39 +0100709 fail:
710 free(backfmt);
711 return 0;
William Lallemand723b73a2012-02-08 16:37:49 +0100712}
713
Christopher Faulet4b0b79d2018-03-26 15:54:32 +0200714/*
Ilya Shipitsin856aabc2020-04-16 23:51:34 +0500715 * Parse the first range of indexes from a string made of a list of comma separated
Frédéric Lécailled95ea282019-04-24 16:14:33 +0200716 * ranges of indexes. Note that an index may be considered as a particular range
717 * with a high limit to the low limit.
718 */
719int get_logsrv_smp_range(unsigned int *low, unsigned int *high, char **arg, char **err)
720{
721 char *end, *p;
722
723 *low = *high = 0;
724
725 p = *arg;
726 end = strchr(p, ',');
727 if (!end)
728 end = p + strlen(p);
729
730 *high = *low = read_uint((const char **)&p, end);
731 if (!*low || (p != end && *p != '-'))
732 goto err;
733
734 if (p == end)
735 goto done;
736
737 p++;
738 *high = read_uint((const char **)&p, end);
739 if (!*high || *high <= *low || p != end)
740 goto err;
741
742 done:
743 if (*end == ',')
744 end++;
745 *arg = end;
746 return 1;
747
748 err:
749 memprintf(err, "wrong sample range '%s'", *arg);
750 return 0;
751}
752
753/*
754 * Returns 1 if the range defined by <low> and <high> overlaps
755 * one of them in <rgs> array of ranges with <sz> the size of this
756 * array, 0 if not.
757 */
758int smp_log_ranges_overlap(struct smp_log_range *rgs, size_t sz,
759 unsigned int low, unsigned int high, char **err)
760{
761 size_t i;
762
763 for (i = 0; i < sz; i++) {
764 if ((low >= rgs[i].low && low <= rgs[i].high) ||
765 (high >= rgs[i].low && high <= rgs[i].high)) {
766 memprintf(err, "ranges are overlapping");
767 return 1;
768 }
769 }
770
771 return 0;
772}
773
774int smp_log_range_cmp(const void *a, const void *b)
775{
776 const struct smp_log_range *rg_a = a;
777 const struct smp_log_range *rg_b = b;
778
779 if (rg_a->high < rg_b->low)
780 return -1;
781 else if (rg_a->low > rg_b->high)
782 return 1;
783
784 return 0;
785}
786
787/*
Christopher Faulet4b0b79d2018-03-26 15:54:32 +0200788 * Parse "log" keyword and update <logsrvs> list accordingly.
789 *
790 * When <do_del> is set, it means the "no log" line was parsed, so all log
791 * servers in <logsrvs> are released.
792 *
793 * Otherwise, we try to parse the "log" line. First of all, when the list is not
794 * the global one, we look for the parameter "global". If we find it,
795 * global.logsrvs is copied. Else we parse each arguments.
796 *
797 * The function returns 1 in success case, otherwise, it returns 0 and err is
798 * filled.
799 */
800int parse_logsrv(char **args, struct list *logsrvs, int do_del, char **err)
801{
802 struct sockaddr_storage *sk;
803 struct logsrv *logsrv = NULL;
804 int port1, port2;
805 int cur_arg;
Willy Tarreau89599262020-09-15 14:03:26 +0200806 int fd;
Christopher Faulet4b0b79d2018-03-26 15:54:32 +0200807
808 /*
809 * "no log": delete previous herited or defined syslog
810 * servers.
811 */
812 if (do_del) {
813 struct logsrv *back;
814
815 if (*(args[1]) != 0) {
816 memprintf(err, "'no log' does not expect arguments");
817 goto error;
818 }
819
820 list_for_each_entry_safe(logsrv, back, logsrvs, list) {
821 LIST_DEL(&logsrv->list);
822 free(logsrv);
823 }
824 return 1;
825 }
826
827 /*
828 * "log global": copy global.logrsvs linked list to the end of logsrvs
829 * list. But first, we check (logsrvs != global.logsrvs).
830 */
831 if (*(args[1]) && *(args[2]) == 0 && !strcmp(args[1], "global")) {
832 if (logsrvs == &global.logsrvs) {
833 memprintf(err, "'global' is not supported for a global syslog server");
834 goto error;
835 }
836 list_for_each_entry(logsrv, &global.logsrvs, list) {
Christopher Faulet28ac0992018-03-26 16:09:19 +0200837 struct logsrv *node;
838
839 list_for_each_entry(node, logsrvs, list) {
840 if (node->ref == logsrv)
841 goto skip_logsrv;
842 }
843
844 node = malloc(sizeof(*node));
Christopher Faulet4b0b79d2018-03-26 15:54:32 +0200845 memcpy(node, logsrv, sizeof(struct logsrv));
Christopher Faulet28ac0992018-03-26 16:09:19 +0200846 node->ref = logsrv;
Christopher Faulet4b0b79d2018-03-26 15:54:32 +0200847 LIST_INIT(&node->list);
848 LIST_ADDQ(logsrvs, &node->list);
Christopher Faulet28ac0992018-03-26 16:09:19 +0200849
850 skip_logsrv:
851 continue;
Christopher Faulet4b0b79d2018-03-26 15:54:32 +0200852 }
853 return 1;
854 }
855
856 /*
857 * "log <address> ...: parse a syslog server line
858 */
859 if (*(args[1]) == 0 || *(args[2]) == 0) {
860 memprintf(err, "expects <address> and <facility> %s as arguments",
861 ((logsrvs == &global.logsrvs) ? "" : "or global"));
862 goto error;
863 }
864
Willy Tarreau5a32ecc2018-11-12 07:34:59 +0100865 /* take care of "stdout" and "stderr" as regular aliases for fd@1 / fd@2 */
866 if (strcmp(args[1], "stdout") == 0)
867 args[1] = "fd@1";
868 else if (strcmp(args[1], "stderr") == 0)
869 args[1] = "fd@2";
870
Christopher Faulet4b0b79d2018-03-26 15:54:32 +0200871 logsrv = calloc(1, sizeof(*logsrv));
872 if (!logsrv) {
873 memprintf(err, "out of memory");
874 goto error;
875 }
876
877 /* skip address for now, it will be parsed at the end */
878 cur_arg = 2;
879
880 /* just after the address, a length may be specified */
881 logsrv->maxlen = MAX_SYSLOG_LEN;
882 if (strcmp(args[cur_arg], "len") == 0) {
883 int len = atoi(args[cur_arg+1]);
884 if (len < 80 || len > 65535) {
885 memprintf(err, "invalid log length '%s', must be between 80 and 65535",
886 args[cur_arg+1]);
887 goto error;
888 }
889 logsrv->maxlen = len;
890 cur_arg += 2;
891 }
892 if (logsrv->maxlen > global.max_syslog_len)
893 global.max_syslog_len = logsrv->maxlen;
894
895 /* after the length, a format may be specified */
896 if (strcmp(args[cur_arg], "format") == 0) {
897 logsrv->format = get_log_format(args[cur_arg+1]);
Emeric Brun54648852020-07-06 15:54:06 +0200898 if (logsrv->format == LOG_FORMAT_UNSPEC) {
Christopher Faulet4b0b79d2018-03-26 15:54:32 +0200899 memprintf(err, "unknown log format '%s'", args[cur_arg+1]);
900 goto error;
901 }
902 cur_arg += 2;
903 }
904
Frédéric Lécailled95ea282019-04-24 16:14:33 +0200905 if (strcmp(args[cur_arg], "sample") == 0) {
906 unsigned low, high;
907 char *p, *beg, *end, *smp_sz_str;
908 struct smp_log_range *smp_rgs = NULL;
909 size_t smp_rgs_sz = 0, smp_sz = 0, new_smp_sz;
910
911 p = args[cur_arg+1];
912 smp_sz_str = strchr(p, ':');
913 if (!smp_sz_str) {
914 memprintf(err, "Missing sample size");
915 goto error;
916 }
917
918 *smp_sz_str++ = '\0';
919
920 end = p + strlen(p);
921
922 while (p != end) {
923 if (!get_logsrv_smp_range(&low, &high, &p, err))
924 goto error;
925
926 if (smp_rgs && smp_log_ranges_overlap(smp_rgs, smp_rgs_sz, low, high, err))
927 goto error;
928
929 smp_rgs = my_realloc2(smp_rgs, (smp_rgs_sz + 1) * sizeof *smp_rgs);
930 if (!smp_rgs) {
931 memprintf(err, "out of memory error");
932 goto error;
933 }
934
935 smp_rgs[smp_rgs_sz].low = low;
936 smp_rgs[smp_rgs_sz].high = high;
937 smp_rgs[smp_rgs_sz].sz = high - low + 1;
938 smp_rgs[smp_rgs_sz].curr_idx = 0;
939 if (smp_rgs[smp_rgs_sz].high > smp_sz)
940 smp_sz = smp_rgs[smp_rgs_sz].high;
941 smp_rgs_sz++;
942 }
943
Tim Duesterhus21648002019-06-23 22:10:10 +0200944 if (smp_rgs == NULL) {
945 memprintf(err, "no sampling ranges given");
946 goto error;
947 }
948
Frédéric Lécailled95ea282019-04-24 16:14:33 +0200949 beg = smp_sz_str;
950 end = beg + strlen(beg);
951 new_smp_sz = read_uint((const char **)&beg, end);
952 if (!new_smp_sz || beg != end) {
953 memprintf(err, "wrong sample size '%s' for sample range '%s'",
954 smp_sz_str, args[cur_arg+1]);
955 goto error;
956 }
957
958 if (new_smp_sz < smp_sz) {
959 memprintf(err, "sample size %zu should be greater or equal to "
960 "%zu the maximum of the high ranges limits",
961 new_smp_sz, smp_sz);
962 goto error;
963 }
964 smp_sz = new_smp_sz;
965
966 /* Let's order <smp_rgs> array. */
967 qsort(smp_rgs, smp_rgs_sz, sizeof(struct smp_log_range), smp_log_range_cmp);
968
969 logsrv->lb.smp_rgs = smp_rgs;
970 logsrv->lb.smp_rgs_sz = smp_rgs_sz;
971 logsrv->lb.smp_sz = smp_sz;
972
973 cur_arg += 2;
974 }
Frédéric Lécailled803e472019-04-25 07:42:09 +0200975 HA_SPIN_INIT(&logsrv->lock);
Christopher Faulet4b0b79d2018-03-26 15:54:32 +0200976 /* parse the facility */
977 logsrv->facility = get_log_facility(args[cur_arg]);
978 if (logsrv->facility < 0) {
979 memprintf(err, "unknown log facility '%s'", args[cur_arg]);
980 goto error;
981 }
982 cur_arg++;
983
984 /* parse the max syslog level (default: debug) */
985 logsrv->level = 7;
986 if (*(args[cur_arg])) {
987 logsrv->level = get_log_level(args[cur_arg]);
988 if (logsrv->level < 0) {
989 memprintf(err, "unknown optional log level '%s'", args[cur_arg]);
990 goto error;
991 }
992 cur_arg++;
993 }
994
995 /* parse the limit syslog level (default: emerg) */
996 logsrv->minlvl = 0;
997 if (*(args[cur_arg])) {
998 logsrv->minlvl = get_log_level(args[cur_arg]);
999 if (logsrv->minlvl < 0) {
1000 memprintf(err, "unknown optional minimum log level '%s'", args[cur_arg]);
1001 goto error;
1002 }
1003 cur_arg++;
1004 }
1005
1006 /* Too many args */
1007 if (*(args[cur_arg])) {
1008 memprintf(err, "cannot handle unexpected argument '%s'", args[cur_arg]);
1009 goto error;
1010 }
1011
1012 /* now, back to the address */
Willy Tarreauf3dc30f2019-08-30 14:18:44 +02001013 logsrv->type = LOG_TARGET_DGRAM;
Willy Tarreauc046d162019-08-30 15:24:59 +02001014 if (strncmp(args[1], "ring@", 5) == 0) {
Willy Tarreauc046d162019-08-30 15:24:59 +02001015 logsrv->addr.ss_family = AF_UNSPEC;
1016 logsrv->type = LOG_TARGET_BUFFER;
Emeric Brun99c453d2020-05-25 15:01:04 +02001017 logsrv->sink = NULL;
1018 logsrv->ring_name = strdup(args[1] + 5);
Willy Tarreauc046d162019-08-30 15:24:59 +02001019 goto done;
1020 }
1021
Willy Tarreau5fc93282020-09-16 18:25:03 +02001022 sk = str2sa_range(args[1], NULL, &port1, &port2, &fd, NULL,
Willy Tarreaua93e5c72020-09-15 14:01:16 +02001023 err, NULL, NULL, PA_O_RESOLVE | PA_O_PORT_OK | PA_O_RAW_FD | PA_O_DGRAM);
Christopher Faulet4b0b79d2018-03-26 15:54:32 +02001024 if (!sk)
1025 goto error;
Willy Tarreau89599262020-09-15 14:03:26 +02001026
1027 if (fd != -1)
1028 logsrv->type = LOG_TARGET_FD;
Christopher Faulet4b0b79d2018-03-26 15:54:32 +02001029 logsrv->addr = *sk;
1030
1031 if (sk->ss_family == AF_INET || sk->ss_family == AF_INET6) {
Christopher Faulet4b0b79d2018-03-26 15:54:32 +02001032 logsrv->addr = *sk;
1033 if (!port1)
1034 set_host_port(&logsrv->addr, SYSLOG_PORT);
1035 }
Willy Tarreauc046d162019-08-30 15:24:59 +02001036 done:
Christopher Faulet4b0b79d2018-03-26 15:54:32 +02001037 LIST_ADDQ(logsrvs, &logsrv->list);
1038 return 1;
1039
1040 error:
1041 free(logsrv);
1042 return 0;
1043}
1044
1045
Christopher Fauletd4696382017-10-24 11:44:05 +02001046/* Generic function to display messages prefixed by a label */
1047static void print_message(const char *label, const char *fmt, va_list argp)
1048{
1049 struct tm tm;
1050 char *head, *msg;
1051
1052 head = msg = NULL;
1053
1054 get_localtime(date.tv_sec, &tm);
1055 memprintf(&head, "[%s] %03d/%02d%02d%02d (%d) : ",
1056 label, tm.tm_yday, tm.tm_hour, tm.tm_min, tm.tm_sec, (int)getpid());
1057 memvprintf(&msg, fmt, argp);
1058
Willy Tarreau869efd52019-11-15 15:16:57 +01001059 if (global.mode & MODE_STARTING) {
1060 if (unlikely(!startup_logs))
1061 startup_logs = ring_new(STARTUP_LOG_SIZE);
1062
1063 if (likely(startup_logs)) {
1064 struct ist m[2];
1065
1066 m[0] = ist(head);
1067 m[1] = ist(msg);
1068 /* trim the trailing '\n' */
1069 if (m[1].len > 0 && m[1].ptr[m[1].len - 1] == '\n')
1070 m[1].len--;
1071 ring_write(startup_logs, ~0, 0, 0, m, 2);
1072 }
1073 }
Christopher Fauletd4696382017-10-24 11:44:05 +02001074
1075 fprintf(stderr, "%s%s", head, msg);
1076 fflush(stderr);
1077
1078 free(head);
1079 free(msg);
1080}
1081
Willy Tarreaubaaee002006-06-26 02:48:02 +02001082/*
1083 * Displays the message on stderr with the date and pid. Overrides the quiet
1084 * mode during startup.
1085 */
Christopher Faulet767a84b2017-11-24 16:50:31 +01001086void ha_alert(const char *fmt, ...)
Willy Tarreaubaaee002006-06-26 02:48:02 +02001087{
1088 va_list argp;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001089
1090 if (!(global.mode & MODE_QUIET) || (global.mode & (MODE_VERBOSE | MODE_STARTING))) {
Willy Tarreaubb869862020-04-16 10:52:41 +02001091 if (!(warned & WARN_EXEC_PATH)) {
1092 const char *path = get_exec_path();
1093
1094 warned |= WARN_EXEC_PATH;
1095 ha_notice("haproxy version is %s\n", haproxy_version);
1096 if (path)
1097 ha_notice("path to executable is %s\n", path);
1098 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02001099 va_start(argp, fmt);
Christopher Fauletd4696382017-10-24 11:44:05 +02001100 print_message("ALERT", fmt, argp);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001101 va_end(argp);
1102 }
1103}
1104
1105
1106/*
1107 * Displays the message on stderr with the date and pid.
1108 */
Christopher Faulet767a84b2017-11-24 16:50:31 +01001109void ha_warning(const char *fmt, ...)
Willy Tarreaubaaee002006-06-26 02:48:02 +02001110{
1111 va_list argp;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001112
Willy Tarreaubebd2122020-04-15 16:06:11 +02001113 warned |= WARN_ANY;
1114
Willy Tarreaubaaee002006-06-26 02:48:02 +02001115 if (!(global.mode & MODE_QUIET) || (global.mode & MODE_VERBOSE)) {
1116 va_start(argp, fmt);
Christopher Fauletd4696382017-10-24 11:44:05 +02001117 print_message("WARNING", fmt, argp);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001118 va_end(argp);
1119 }
1120}
1121
1122/*
William Lallemand9c56a222018-11-21 18:04:52 +01001123 * Displays the message on stderr with the date and pid.
1124 */
1125void ha_notice(const char *fmt, ...)
1126{
1127 va_list argp;
1128
1129 if (!(global.mode & MODE_QUIET) || (global.mode & MODE_VERBOSE)) {
1130 va_start(argp, fmt);
1131 print_message("NOTICE", fmt, argp);
1132 va_end(argp);
1133 }
1134}
1135
1136/*
Willy Tarreaubaaee002006-06-26 02:48:02 +02001137 * Displays the message on <out> only if quiet mode is not set.
1138 */
Willy Tarreaub17916e2006-10-15 15:17:57 +02001139void qfprintf(FILE *out, const char *fmt, ...)
Willy Tarreaubaaee002006-06-26 02:48:02 +02001140{
1141 va_list argp;
1142
1143 if (!(global.mode & MODE_QUIET) || (global.mode & MODE_VERBOSE)) {
1144 va_start(argp, fmt);
1145 vfprintf(out, fmt, argp);
1146 fflush(out);
1147 va_end(argp);
1148 }
1149}
1150
1151/*
Emeric Brun54648852020-07-06 15:54:06 +02001152 * returns log format, LOG_FORMAT_UNSPEC is return if not found.
Dragan Dosen1322d092015-09-22 16:05:32 +02001153 */
Emeric Brun54648852020-07-06 15:54:06 +02001154enum log_fmt get_log_format(const char *fmt)
Dragan Dosen1322d092015-09-22 16:05:32 +02001155{
Emeric Brun54648852020-07-06 15:54:06 +02001156 enum log_fmt format;
Dragan Dosen1322d092015-09-22 16:05:32 +02001157
1158 format = LOG_FORMATS - 1;
Emeric Brun54648852020-07-06 15:54:06 +02001159 while (format > 0 && log_formats[format].name
1160 && strcmp(log_formats[format].name, fmt))
Dragan Dosen1322d092015-09-22 16:05:32 +02001161 format--;
1162
Emeric Brun54648852020-07-06 15:54:06 +02001163 /* Note: 0 is LOG_FORMAT_UNSPEC */
Dragan Dosen1322d092015-09-22 16:05:32 +02001164 return format;
1165}
1166
1167/*
Willy Tarreaubaaee002006-06-26 02:48:02 +02001168 * returns log level for <lev> or -1 if not found.
1169 */
1170int get_log_level(const char *lev)
1171{
1172 int level;
1173
1174 level = NB_LOG_LEVELS - 1;
1175 while (level >= 0 && strcmp(log_levels[level], lev))
1176 level--;
1177
1178 return level;
1179}
1180
Willy Tarreaubaaee002006-06-26 02:48:02 +02001181/*
1182 * returns log facility for <fac> or -1 if not found.
1183 */
1184int get_log_facility(const char *fac)
1185{
1186 int facility;
1187
1188 facility = NB_LOG_FACILITIES - 1;
1189 while (facility >= 0 && strcmp(log_facilities[facility], fac))
1190 facility--;
William Lallemand2a4a44f2012-02-06 16:00:33 +01001191
Willy Tarreaubaaee002006-06-26 02:48:02 +02001192 return facility;
1193}
1194
William Lallemanda1cc3812012-02-08 16:38:44 +01001195/*
Dragan Dosen835b9212016-02-12 13:23:03 +01001196 * Encode the string.
1197 *
1198 * When using the +E log format option, it will try to escape '"\]'
1199 * characters with '\' as prefix. The same prefix should not be used as
1200 * <escape>.
1201 */
1202static char *lf_encode_string(char *start, char *stop,
Willy Tarreau1bfd6022019-06-07 11:10:07 +02001203 const char escape, const long *map,
Dragan Dosen835b9212016-02-12 13:23:03 +01001204 const char *string,
1205 struct logformat_node *node)
1206{
1207 if (node->options & LOG_OPT_ESC) {
1208 if (start < stop) {
1209 stop--; /* reserve one byte for the final '\0' */
1210 while (start < stop && *string != '\0') {
Willy Tarreau1bfd6022019-06-07 11:10:07 +02001211 if (!ha_bit_test((unsigned char)(*string), map)) {
1212 if (!ha_bit_test((unsigned char)(*string), rfc5424_escape_map))
Dragan Dosen835b9212016-02-12 13:23:03 +01001213 *start++ = *string;
1214 else {
1215 if (start + 2 >= stop)
1216 break;
1217 *start++ = '\\';
1218 *start++ = *string;
1219 }
1220 }
1221 else {
1222 if (start + 3 >= stop)
1223 break;
1224 *start++ = escape;
1225 *start++ = hextab[(*string >> 4) & 15];
1226 *start++ = hextab[*string & 15];
1227 }
1228 string++;
1229 }
1230 *start = '\0';
1231 }
1232 }
1233 else {
1234 return encode_string(start, stop, escape, map, string);
1235 }
1236
1237 return start;
1238}
1239
1240/*
1241 * Encode the chunk.
1242 *
1243 * When using the +E log format option, it will try to escape '"\]'
1244 * characters with '\' as prefix. The same prefix should not be used as
1245 * <escape>.
1246 */
1247static char *lf_encode_chunk(char *start, char *stop,
Willy Tarreau1bfd6022019-06-07 11:10:07 +02001248 const char escape, const long *map,
Willy Tarreau83061a82018-07-13 11:56:34 +02001249 const struct buffer *chunk,
Dragan Dosen835b9212016-02-12 13:23:03 +01001250 struct logformat_node *node)
1251{
1252 char *str, *end;
1253
1254 if (node->options & LOG_OPT_ESC) {
1255 if (start < stop) {
Willy Tarreau843b7cb2018-07-13 10:54:26 +02001256 str = chunk->area;
1257 end = chunk->area + chunk->data;
Dragan Dosen835b9212016-02-12 13:23:03 +01001258
1259 stop--; /* reserve one byte for the final '\0' */
1260 while (start < stop && str < end) {
Willy Tarreau1bfd6022019-06-07 11:10:07 +02001261 if (!ha_bit_test((unsigned char)(*str), map)) {
1262 if (!ha_bit_test((unsigned char)(*str), rfc5424_escape_map))
Dragan Dosen835b9212016-02-12 13:23:03 +01001263 *start++ = *str;
1264 else {
1265 if (start + 2 >= stop)
1266 break;
1267 *start++ = '\\';
1268 *start++ = *str;
1269 }
1270 }
1271 else {
1272 if (start + 3 >= stop)
1273 break;
1274 *start++ = escape;
1275 *start++ = hextab[(*str >> 4) & 15];
1276 *start++ = hextab[*str & 15];
1277 }
1278 str++;
1279 }
1280 *start = '\0';
1281 }
1282 }
1283 else {
1284 return encode_chunk(start, stop, escape, map, chunk);
1285 }
1286
1287 return start;
1288}
1289
1290/*
William Lallemanda1cc3812012-02-08 16:38:44 +01001291 * Write a string in the log string
Dragan Dosen835b9212016-02-12 13:23:03 +01001292 * Take cares of quote and escape options
William Lallemanda1cc3812012-02-08 16:38:44 +01001293 *
Joseph Herlant85b40592018-11-15 12:10:04 -08001294 * Return the address of the \0 character, or NULL on error
William Lallemanda1cc3812012-02-08 16:38:44 +01001295 */
Willy Tarreau26ffa852018-09-05 15:23:10 +02001296char *lf_text_len(char *dst, const char *src, size_t len, size_t size, const struct logformat_node *node)
William Lallemanda1cc3812012-02-08 16:38:44 +01001297{
Willy Tarreau2b0108a2012-12-21 19:23:44 +01001298 if (size < 2)
1299 return NULL;
William Lallemanda1cc3812012-02-08 16:38:44 +01001300
Willy Tarreau2b0108a2012-12-21 19:23:44 +01001301 if (node->options & LOG_OPT_QUOTE) {
1302 *(dst++) = '"';
1303 size--;
William Lallemandbddd4fd2012-02-27 11:23:10 +01001304 }
Willy Tarreau2b0108a2012-12-21 19:23:44 +01001305
Willy Tarreau6cbbdbf2013-02-05 18:52:25 +01001306 if (src && len) {
Dragan Dosendb1b6f92016-07-25 11:35:02 +02001307 if (++len > size)
1308 len = size;
Dragan Dosen835b9212016-02-12 13:23:03 +01001309 if (node->options & LOG_OPT_ESC) {
Dragan Dosen835b9212016-02-12 13:23:03 +01001310 char *ret;
1311
Dragan Dosendb1b6f92016-07-25 11:35:02 +02001312 ret = escape_string(dst, dst + len, '\\', rfc5424_escape_map, src);
Dragan Dosen835b9212016-02-12 13:23:03 +01001313 if (ret == NULL || *ret != '\0')
1314 return NULL;
1315 len = ret - dst;
1316 }
1317 else {
Dragan Dosen835b9212016-02-12 13:23:03 +01001318 len = strlcpy2(dst, src, len);
1319 }
Willy Tarreau2b0108a2012-12-21 19:23:44 +01001320
1321 size -= len;
1322 dst += len;
1323 }
Willy Tarreau6cbbdbf2013-02-05 18:52:25 +01001324 else if ((node->options & (LOG_OPT_QUOTE|LOG_OPT_MANDATORY)) == LOG_OPT_MANDATORY) {
1325 if (size < 2)
1326 return NULL;
1327 *(dst++) = '-';
1328 }
Willy Tarreau2b0108a2012-12-21 19:23:44 +01001329
1330 if (node->options & LOG_OPT_QUOTE) {
1331 if (size < 2)
1332 return NULL;
1333 *(dst++) = '"';
1334 }
1335
1336 *dst = '\0';
William Lallemandbddd4fd2012-02-27 11:23:10 +01001337 return dst;
William Lallemanda1cc3812012-02-08 16:38:44 +01001338}
1339
Willy Tarreau26ffa852018-09-05 15:23:10 +02001340static inline char *lf_text(char *dst, const char *src, size_t size, const struct logformat_node *node)
Willy Tarreau2b0108a2012-12-21 19:23:44 +01001341{
1342 return lf_text_len(dst, src, size, size, node);
1343}
1344
William Lallemand5f232402012-04-05 18:02:55 +02001345/*
Joseph Herlant85b40592018-11-15 12:10:04 -08001346 * Write a IP address to the log string
Ilya Shipitsin856aabc2020-04-16 23:51:34 +05001347 * +X option write in hexadecimal notation, most significant byte on the left
William Lallemand5f232402012-04-05 18:02:55 +02001348 */
Willy Tarreau26ffa852018-09-05 15:23:10 +02001349char *lf_ip(char *dst, const struct sockaddr *sockaddr, size_t size, const struct logformat_node *node)
William Lallemand5f232402012-04-05 18:02:55 +02001350{
1351 char *ret = dst;
1352 int iret;
1353 char pn[INET6_ADDRSTRLEN];
1354
1355 if (node->options & LOG_OPT_HEXA) {
Radek Zajic594c4562019-03-22 10:21:54 +00001356 unsigned char *addr = NULL;
1357 switch (sockaddr->sa_family) {
1358 case AF_INET:
1359 addr = (unsigned char *)&((struct sockaddr_in *)sockaddr)->sin_addr.s_addr;
1360 iret = snprintf(dst, size, "%02X%02X%02X%02X", addr[0], addr[1], addr[2], addr[3]);
1361 break;
1362 case AF_INET6:
1363 addr = (unsigned char *)&((struct sockaddr_in6 *)sockaddr)->sin6_addr.s6_addr;
1364 iret = snprintf(dst, size, "%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X%02X",
1365 addr[0], addr[1], addr[2], addr[3], addr[4], addr[5], addr[6], addr[7],
1366 addr[8], addr[9], addr[10], addr[11], addr[12], addr[13], addr[14], addr[15]);
1367 break;
1368 default:
1369 return NULL;
1370 }
William Lallemand5f232402012-04-05 18:02:55 +02001371 if (iret < 0 || iret > size)
1372 return NULL;
1373 ret += iret;
1374 } else {
1375 addr_to_str((struct sockaddr_storage *)sockaddr, pn, sizeof(pn));
1376 ret = lf_text(dst, pn, size, node);
1377 if (ret == NULL)
1378 return NULL;
1379 }
1380 return ret;
1381}
1382
1383/*
1384 * Write a port to the log
Ilya Shipitsin856aabc2020-04-16 23:51:34 +05001385 * +X option write in hexadecimal notation, most significant byte on the left
William Lallemand5f232402012-04-05 18:02:55 +02001386 */
Willy Tarreau26ffa852018-09-05 15:23:10 +02001387char *lf_port(char *dst, const struct sockaddr *sockaddr, size_t size, const struct logformat_node *node)
William Lallemand5f232402012-04-05 18:02:55 +02001388{
1389 char *ret = dst;
1390 int iret;
1391
1392 if (node->options & LOG_OPT_HEXA) {
1393 const unsigned char *port = (const unsigned char *)&((struct sockaddr_in *)sockaddr)->sin_port;
1394 iret = snprintf(dst, size, "%02X%02X", port[0], port[1]);
1395 if (iret < 0 || iret > size)
1396 return NULL;
1397 ret += iret;
1398 } else {
1399 ret = ltoa_o(get_host_port((struct sockaddr_storage *)sockaddr), dst, size);
1400 if (ret == NULL)
1401 return NULL;
1402 }
1403 return ret;
1404}
1405
Emeric Brun54648852020-07-06 15:54:06 +02001406
1407/*
1408 * This function sends the syslog message using a printf format string. It
1409 * expects an LF-terminated message.
Willy Tarreaub1a2faf2012-03-19 16:51:53 +01001410 */
Emeric Brun54648852020-07-06 15:54:06 +02001411void send_log(struct proxy *p, int level, const char *format, ...)
Willy Tarreaubaaee002006-06-26 02:48:02 +02001412{
Emeric Brun54648852020-07-06 15:54:06 +02001413 va_list argp;
1414 int data_len;
1415
1416 if (level < 0 || format == NULL || logline == NULL)
1417 return;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001418
Emeric Brun54648852020-07-06 15:54:06 +02001419 va_start(argp, format);
1420 data_len = vsnprintf(logline, global.max_syslog_len, format, argp);
1421 if (data_len < 0 || data_len > global.max_syslog_len)
1422 data_len = global.max_syslog_len;
1423 va_end(argp);
Willy Tarreaufe944602007-10-25 10:34:16 +02001424
Emeric Brun54648852020-07-06 15:54:06 +02001425 __send_log((p ? &p->logsrvs : NULL), (p ? &p->log_tag : NULL), level,
1426 logline, data_len, default_rfc5424_sd_log_format, 2);
1427}
1428/*
1429 * This function builds a log header of given format using given
1430 * metadata, if format is set to LOF_FORMAT_UNSPEC, it tries
1431 * to determine format based on given metadas. It is useful
1432 * for log-forwarding to be able to forward any format without
1433 * settings.
1434 * This function returns a struct ist array of elements of the header
1435 * nbelem is set to the number of available elements.
Ilya Shipitsin6b79f382020-07-23 00:32:55 +05001436 * This function returns currently a maximum of NB_LOG_HDR_IST_ELEMENTS
Emeric Brun54648852020-07-06 15:54:06 +02001437 * elements.
1438 */
1439struct ist *build_log_header(enum log_fmt format, int level, int facility,
1440 struct ist *metadata, size_t *nbelem)
1441{
1442 static THREAD_LOCAL struct {
1443 struct ist ist_vector[NB_LOG_HDR_MAX_ELEMENTS];
1444 char timestamp_buffer[LOG_LEGACYTIME_LEN+1+1];
1445 time_t cur_legacy_time;
1446 char priority_buffer[6];
1447 } hdr_ctx = { .priority_buffer = "<<<<>" };
Willy Tarreaubaaee002006-06-26 02:48:02 +02001448
Emeric Brun54648852020-07-06 15:54:06 +02001449 struct tm logtime;
1450 int len;
1451 int fac_level = 0;
1452 time_t time = date.tv_sec;
Dragan Dosen43885c72015-10-01 13:18:13 +02001453
Emeric Brun54648852020-07-06 15:54:06 +02001454 *nbelem = 0;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001455
Emeric Brun54648852020-07-06 15:54:06 +02001456
1457 if (format == LOG_FORMAT_UNSPEC) {
1458 format = LOG_FORMAT_RAW;
1459 if (metadata) {
1460 /* If a hostname is set, it appears we want to perform syslog
1461 * because only rfc5427 or rfc3164 support an hostname.
1462 */
1463 if (metadata[LOG_META_HOST].len) {
1464 /* If a rfc5424 compliant timestamp is used we consider
1465 * that output format is rfc5424, else legacy format
1466 * is used as specified default for local logs
1467 * in documentation.
1468 */
1469 if ((metadata[LOG_META_TIME].len == 1 && metadata[LOG_META_TIME].ptr[0] == '-')
1470 || (metadata[LOG_META_TIME].len >= LOG_ISOTIME_MINLEN))
1471 format = LOG_FORMAT_RFC5424;
1472 else
1473 format = LOG_FORMAT_RFC3164;
1474 }
1475 else if (metadata[LOG_META_PRIO].len) {
1476 /* the source seems a parsed message
1477 * offering a valid level/prio prefix
1478 * so we consider this format.
1479 */
1480 format = LOG_FORMAT_PRIO;
1481 }
1482 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02001483 }
1484
Emeric Brun54648852020-07-06 15:54:06 +02001485 /* prepare priority, stored into 1 single elem */
1486 switch (format) {
1487 case LOG_FORMAT_RFC3164:
1488 case LOG_FORMAT_RFC5424:
1489 case LOG_FORMAT_PRIO:
1490 fac_level = facility << 3;
1491 /* further format ignore the facility */
1492 /* fall through */
1493 case LOG_FORMAT_TIMED:
1494 case LOG_FORMAT_SHORT:
1495 fac_level += level;
1496 hdr_ctx.ist_vector[*nbelem].ptr = &hdr_ctx.priority_buffer[3]; /* last digit of the log level */
1497 do {
1498 *hdr_ctx.ist_vector[*nbelem].ptr = '0' + fac_level % 10;
1499 fac_level /= 10;
1500 hdr_ctx.ist_vector[*nbelem].ptr--;
1501 } while (fac_level && hdr_ctx.ist_vector[*nbelem].ptr > &hdr_ctx.priority_buffer[0]);
1502 *hdr_ctx.ist_vector[*nbelem].ptr = '<';
1503 hdr_ctx.ist_vector[(*nbelem)++].len = &hdr_ctx.priority_buffer[5] - hdr_ctx.ist_vector[0].ptr;
1504 break;
1505 case LOG_FORMAT_ISO:
1506 case LOG_FORMAT_RAW:
1507 break;
1508 case LOG_FORMAT_UNSPEC:
1509 case LOG_FORMATS:
1510 ABORT_NOW();
1511 }
Willy Tarreau094af4e2015-01-07 15:03:42 +01001512
William Lallemand2a4a44f2012-02-06 16:00:33 +01001513
Emeric Brun54648852020-07-06 15:54:06 +02001514 /* prepare timestamp, stored into a max of 4 elems */
1515 switch (format) {
1516 case LOG_FORMAT_RFC3164:
1517 /* rfc3164 ex: 'Jan 1 00:00:00 ' */
1518 if (metadata && metadata[LOG_META_TIME].len == LOG_LEGACYTIME_LEN) {
1519 hdr_ctx.ist_vector[(*nbelem)++] = metadata[LOG_META_TIME];
1520 hdr_ctx.ist_vector[(*nbelem)++] = ist2(" ", 1);
Ilya Shipitsin6b79f382020-07-23 00:32:55 +05001521 /* time is set, break immediately */
Emeric Brun54648852020-07-06 15:54:06 +02001522 break;
1523 }
1524 else if (metadata && metadata[LOG_META_TIME].len >= LOG_ISOTIME_MINLEN) {
1525 int month;
1526 char *timestamp = metadata[LOG_META_TIME].ptr;
Dragan Dosen1322d092015-09-22 16:05:32 +02001527
Emeric Brun54648852020-07-06 15:54:06 +02001528 /* iso time always begins like this: '1970-01-01T00:00:00' */
Dragan Dosen1322d092015-09-22 16:05:32 +02001529
Emeric Brun54648852020-07-06 15:54:06 +02001530 /* compute month */
1531 month = 10*(timestamp[5] - '0') + (timestamp[6] - '0');
1532 if (month)
1533 month--;
1534 if (month <= 11) {
1535 /* builds log prefix ex: 'Jan 1 ' */
1536 len = snprintf(hdr_ctx.timestamp_buffer, sizeof(hdr_ctx.timestamp_buffer),
1537 "%s %c%c ", monthname[month],
1538 timestamp[8] != '0' ? timestamp[8] : ' ',
1539 timestamp[9]);
1540 /* we reused the timestamp_buffer, signal that it does not
1541 * contain local time anymore
1542 */
1543 hdr_ctx.cur_legacy_time = 0;
1544 if (len == 7) {
1545 hdr_ctx.ist_vector[(*nbelem)++] = ist2(&hdr_ctx.timestamp_buffer[0], len);
1546 /* adds 'HH:MM:SS' from iso time */
1547 hdr_ctx.ist_vector[(*nbelem)++] = ist2(&timestamp[11], 8);
1548 hdr_ctx.ist_vector[(*nbelem)++] = ist2(" ", 1);
1549 /* we successfully reuse iso time, we can break */
1550 break;
1551 }
1552 }
1553 /* Failed to reuse isotime time, fallback to local legacy time */
1554 }
Dragan Dosen1322d092015-09-22 16:05:32 +02001555
Emeric Brun54648852020-07-06 15:54:06 +02001556 if (unlikely(time != hdr_ctx.cur_legacy_time)) {
1557 /* re-builds timestamp from the current local time */
1558 get_localtime(time, &logtime);
1559
1560 len = snprintf(hdr_ctx.timestamp_buffer, sizeof(hdr_ctx.timestamp_buffer),
1561 "%s %2d %02d:%02d:%02d ",
1562 monthname[logtime.tm_mon],
1563 logtime.tm_mday, logtime.tm_hour, logtime.tm_min, logtime.tm_sec);
1564 if (len != LOG_LEGACYTIME_LEN+1)
1565 hdr_ctx.cur_legacy_time = 0;
1566 else
1567 hdr_ctx.cur_legacy_time = time;
1568 }
1569 if (likely(hdr_ctx.cur_legacy_time))
1570 hdr_ctx.ist_vector[(*nbelem)++] = ist2(&hdr_ctx.timestamp_buffer[0], LOG_LEGACYTIME_LEN+1);
1571 else
1572 hdr_ctx.ist_vector[(*nbelem)++] = ist2("Jan 1 00:00:00 ", LOG_LEGACYTIME_LEN+1);
1573 break;
1574 case LOG_FORMAT_RFC5424:
1575 /* adds rfc5425 version prefix */
1576 hdr_ctx.ist_vector[(*nbelem)++] = ist2("1 ", 2);
1577 if (metadata && metadata[LOG_META_TIME].len == 1 && metadata[LOG_META_TIME].ptr[0] == '-') {
Ilya Shipitsin6b79f382020-07-23 00:32:55 +05001578 /* submitted len is NILVALUE, it is a valid timestamp for rfc5425 */
Emeric Brun54648852020-07-06 15:54:06 +02001579 hdr_ctx.ist_vector[(*nbelem)++] = metadata[LOG_META_TIME];
1580 hdr_ctx.ist_vector[(*nbelem)++] = ist2(" ", 1);
1581 break;
1582 }
1583 /* let continue as 'timed' and 'iso' format for usual timestamp */
1584 /* fall through */
1585 case LOG_FORMAT_TIMED:
1586 case LOG_FORMAT_ISO:
1587 /* ISO format ex: '1900:01:01T12:00:00.123456Z'
1588 * '1900:01:01T14:00:00+02:00'
1589 * '1900:01:01T10:00:00.123456-02:00'
1590 */
1591 if (metadata && metadata[LOG_META_TIME].len >= LOG_ISOTIME_MINLEN) {
1592 hdr_ctx.ist_vector[(*nbelem)++] = metadata[LOG_META_TIME];
1593 hdr_ctx.ist_vector[(*nbelem)++] = ist2(" ", 1);
Ilya Shipitsin6b79f382020-07-23 00:32:55 +05001594 /* time is set, break immediately */
Emeric Brun54648852020-07-06 15:54:06 +02001595 break;
1596 }
1597 else if (metadata && metadata[LOG_META_TIME].len == LOG_LEGACYTIME_LEN) {
1598 int month;
1599 char *timestamp = metadata[LOG_META_TIME].ptr;
1600
1601 for (month = 0; month < 12; month++)
1602 if (!memcmp(monthname[month], timestamp, 3))
1603 break;
Dragan Dosen1322d092015-09-22 16:05:32 +02001604
Emeric Brun54648852020-07-06 15:54:06 +02001605 if (month < 12) {
1606
1607 /* get local time to retrieve year */
1608 get_localtime(time, &logtime);
1609
1610 /* year seems changed since log */
1611 if (logtime.tm_mon < month)
1612 logtime.tm_year--;
1613
1614 /* builds rfc5424 prefix ex: '1900-01-01T' */
1615 len = snprintf(hdr_ctx.timestamp_buffer, sizeof(hdr_ctx.timestamp_buffer),
1616 "%4d-%02d-%c%cT",
1617 logtime.tm_year+1900, month+1,
1618 timestamp[4] != ' ' ? timestamp[4] : '0',
1619 timestamp[5]);
1620
1621 /* we reused the timestamp_buffer, signal that it does not
1622 * contain local time anymore
1623 */
1624 hdr_ctx.cur_legacy_time = 0;
1625 if (len == 11) {
1626 hdr_ctx.ist_vector[(*nbelem)++] = ist2(&hdr_ctx.timestamp_buffer[0], len);
1627 /* adds HH:MM:SS from legacy timestamp */
1628 hdr_ctx.ist_vector[(*nbelem)++] = ist2(&timestamp[7], 8);
Ilya Shipitsin6b79f382020-07-23 00:32:55 +05001629 /* skip secfraq because it is optional */
Emeric Brun54648852020-07-06 15:54:06 +02001630 /* according to rfc: -00:00 means we don't know the timezone */
1631 hdr_ctx.ist_vector[(*nbelem)++] = ist2("-00:00 ", 7);
1632 /* we successfully reuse legacy time, we can break */
1633 break;
1634 }
1635 }
1636 /* Failed to reuse legacy time, fallback to local iso time */
1637 }
1638 hdr_ctx.ist_vector[(*nbelem)++] = ist2(timeofday_as_iso_us(1), LOG_ISOTIME_MAXLEN + 1);
1639 break;
1640 case LOG_FORMAT_PRIO:
1641 case LOG_FORMAT_SHORT:
1642 case LOG_FORMAT_RAW:
1643 break;
1644 case LOG_FORMAT_UNSPEC:
1645 case LOG_FORMATS:
1646 ABORT_NOW();
Dragan Dosen1322d092015-09-22 16:05:32 +02001647 }
1648
Emeric Brun54648852020-07-06 15:54:06 +02001649 /* prepare other meta data, stored into a max of 10 elems */
1650 switch (format) {
1651 case LOG_FORMAT_RFC3164:
1652 if (metadata && metadata[LOG_META_HOST].len) {
1653 hdr_ctx.ist_vector[(*nbelem)++] = metadata[LOG_META_HOST];
1654 hdr_ctx.ist_vector[(*nbelem)++] = ist2(" ", 1);
1655 }
1656 else /* the caller MUST fill the hostname */
1657 hdr_ctx.ist_vector[(*nbelem)++] = ist2("localhost ", 10);
Emeric Brun9f9b22c2020-07-02 16:16:59 +02001658
Emeric Brun54648852020-07-06 15:54:06 +02001659 if (!metadata || !metadata[LOG_META_TAG].len)
1660 break;
Dragan Dosen1322d092015-09-22 16:05:32 +02001661
Emeric Brun54648852020-07-06 15:54:06 +02001662 hdr_ctx.ist_vector[(*nbelem)++] = metadata[LOG_META_TAG];
1663 if (metadata[LOG_META_PID].len) {
1664 hdr_ctx.ist_vector[(*nbelem)++] = ist2("[", 1);
1665 hdr_ctx.ist_vector[(*nbelem)++] = metadata[LOG_META_PID];
1666 hdr_ctx.ist_vector[(*nbelem)++] = ist2("]", 1);
1667 }
1668 hdr_ctx.ist_vector[(*nbelem)++] = ist2(": ", 2);
1669 break;
1670 case LOG_FORMAT_RFC5424:
1671 if (metadata && metadata[LOG_META_HOST].len) {
1672 hdr_ctx.ist_vector[(*nbelem)++] = metadata[LOG_META_HOST];
1673 hdr_ctx.ist_vector[(*nbelem)++] = ist2(" ", 1);
1674 }
1675 else
1676 hdr_ctx.ist_vector[(*nbelem)++] = ist2("- ", 2);
Dragan Dosen1322d092015-09-22 16:05:32 +02001677
Emeric Brun54648852020-07-06 15:54:06 +02001678 if (metadata && metadata[LOG_META_TAG].len) {
1679 hdr_ctx.ist_vector[(*nbelem)++] = metadata[LOG_META_TAG];
1680 hdr_ctx.ist_vector[(*nbelem)++] = ist2(" ", 1);
1681 }
1682 else
1683 hdr_ctx.ist_vector[(*nbelem)++] = ist2("- ", 2);
William Lallemand2a4a44f2012-02-06 16:00:33 +01001684
Emeric Brun54648852020-07-06 15:54:06 +02001685 if (metadata && metadata[LOG_META_PID].len) {
1686 hdr_ctx.ist_vector[(*nbelem)++] = metadata[LOG_META_PID];
1687 hdr_ctx.ist_vector[(*nbelem)++] = ist2(" ", 1);
1688 }
1689 else
1690 hdr_ctx.ist_vector[(*nbelem)++] = ist2("- ", 2);
William Lallemand2a4a44f2012-02-06 16:00:33 +01001691
Emeric Brun54648852020-07-06 15:54:06 +02001692 if (metadata && metadata[LOG_META_MSGID].len) {
1693 hdr_ctx.ist_vector[(*nbelem)++] = metadata[LOG_META_MSGID];
1694 hdr_ctx.ist_vector[(*nbelem)++] = ist2(" ", 1);
1695 }
1696 else
1697 hdr_ctx.ist_vector[(*nbelem)++] = ist2("- ", 2);
William Lallemand2a4a44f2012-02-06 16:00:33 +01001698
Emeric Brun54648852020-07-06 15:54:06 +02001699 if (metadata && metadata[LOG_META_STDATA].len) {
1700 hdr_ctx.ist_vector[(*nbelem)++] = metadata[LOG_META_STDATA];
1701 hdr_ctx.ist_vector[(*nbelem)++] = ist2(" ", 1);
1702 }
1703 else
1704 hdr_ctx.ist_vector[(*nbelem)++] = ist2("- ", 2);
1705 break;
1706 case LOG_FORMAT_PRIO:
1707 case LOG_FORMAT_SHORT:
1708 case LOG_FORMAT_TIMED:
1709 case LOG_FORMAT_ISO:
1710 case LOG_FORMAT_RAW:
1711 break;
1712 case LOG_FORMAT_UNSPEC:
1713 case LOG_FORMATS:
1714 ABORT_NOW();
1715 }
1716
1717 return hdr_ctx.ist_vector;
William Lallemand2a4a44f2012-02-06 16:00:33 +01001718}
1719
1720/*
Frédéric Lécaille0bad8402019-04-10 08:22:17 +02001721 * This function sends a syslog message to <logsrv>.
Emeric Brun54648852020-07-06 15:54:06 +02001722 * The argument <metadata> MUST be an array of size
1723 * LOG_META_FIELDS*sizeof(struct ist) containing data to build the header.
Dragan Dosen0b85ece2015-09-25 19:17:44 +02001724 * It overrides the last byte of the message vector with an LF character.
Frédéric Lécaille0bad8402019-04-10 08:22:17 +02001725 * Does not return any error,
William Lallemand2a4a44f2012-02-06 16:00:33 +01001726 */
Emeric Brun54648852020-07-06 15:54:06 +02001727static inline void __do_send_log(struct logsrv *logsrv, int nblogger, int level, int facility, struct ist *metadata, char *message, size_t size)
William Lallemand2a4a44f2012-02-06 16:00:33 +01001728{
Emeric Brun54648852020-07-06 15:54:06 +02001729 static THREAD_LOCAL struct iovec iovec[NB_LOG_HDR_MAX_ELEMENTS+1+1] = { }; /* header elements + message + LF */
Christopher Fauletf8188c62017-06-02 16:20:16 +02001730 static THREAD_LOCAL struct msghdr msghdr = {
1731 //.msg_iov = iovec,
Emeric Brun54648852020-07-06 15:54:06 +02001732 .msg_iovlen = NB_LOG_HDR_MAX_ELEMENTS+2
Dragan Dosen609ac2a2015-09-16 18:25:42 +02001733 };
Christopher Fauletf8188c62017-06-02 16:20:16 +02001734 static THREAD_LOCAL int logfdunix = -1; /* syslog to AF_UNIX socket */
1735 static THREAD_LOCAL int logfdinet = -1; /* syslog to AF_INET socket */
Frédéric Lécaille0bad8402019-04-10 08:22:17 +02001736 int *plogfd;
Frédéric Lécaille0bad8402019-04-10 08:22:17 +02001737 int sent;
Emeric Brun54648852020-07-06 15:54:06 +02001738 size_t nbelem;
1739 struct ist *msg_header = NULL;
Christopher Fauletf8188c62017-06-02 16:20:16 +02001740
1741 msghdr.msg_iov = iovec;
William Lallemand2a4a44f2012-02-06 16:00:33 +01001742
Emeric Brunfa9d7802020-05-28 14:21:33 +02001743 /* historically some messages used to already contain the trailing LF
1744 * or Zero. Let's remove all trailing LF or Zero
1745 */
Emeric Brun54648852020-07-06 15:54:06 +02001746 while (size && (message[size-1] == '\n' || (message[size-1] == 0)))
Emeric Brun9e8ea0a2020-05-12 19:33:15 +02001747 size--;
1748
Willy Tarreaua5b325f2020-09-04 16:44:20 +02001749 if (logsrv->type == LOG_TARGET_BUFFER) {
Willy Tarreauc046d162019-08-30 15:24:59 +02001750 plogfd = NULL;
Emeric Brune709e1e2020-05-06 17:23:59 +02001751 goto send;
Willy Tarreauc046d162019-08-30 15:24:59 +02001752 }
Willy Tarreaua5b325f2020-09-04 16:44:20 +02001753 else if (logsrv->addr.ss_family == AF_CUST_EXISTING_FD) {
1754 /* the socket's address is a file descriptor */
1755 plogfd = (int *)&((struct sockaddr_in *)&logsrv->addr)->sin_addr.s_addr;
1756 }
Frédéric Lécaille0bad8402019-04-10 08:22:17 +02001757 else if (logsrv->addr.ss_family == AF_UNIX)
1758 plogfd = &logfdunix;
1759 else
1760 plogfd = &logfdinet;
Robert Tsai81ae1952007-12-05 10:47:29 +01001761
Willy Tarreauc046d162019-08-30 15:24:59 +02001762 if (plogfd && unlikely(*plogfd < 0)) {
Frédéric Lécaille0bad8402019-04-10 08:22:17 +02001763 /* socket not successfully initialized yet */
1764 if ((*plogfd = socket(logsrv->addr.ss_family, SOCK_DGRAM,
1765 (logsrv->addr.ss_family == AF_UNIX) ? 0 : IPPROTO_UDP)) < 0) {
1766 static char once;
William Lallemand0f99e342011-10-12 17:50:54 +02001767
Frédéric Lécaille0bad8402019-04-10 08:22:17 +02001768 if (!once) {
1769 once = 1; /* note: no need for atomic ops here */
1770 ha_alert("socket() failed in logger #%d: %s (errno=%d)\n",
1771 nblogger, strerror(errno), errno);
1772 }
1773 return;
1774 } else {
1775 /* we don't want to receive anything on this socket */
1776 setsockopt(*plogfd, SOL_SOCKET, SO_RCVBUF, &zero, sizeof(zero));
1777 /* does nothing under Linux, maybe needed for others */
1778 shutdown(*plogfd, SHUT_RD);
1779 fcntl(*plogfd, F_SETFD, fcntl(*plogfd, F_GETFD, FD_CLOEXEC) | FD_CLOEXEC);
1780 }
Dragan Dosen43885c72015-10-01 13:18:13 +02001781 }
1782
Emeric Brun54648852020-07-06 15:54:06 +02001783 msg_header = build_log_header(logsrv->format, level, facility, metadata, &nbelem);
1784 send:
Willy Tarreaua5b325f2020-09-04 16:44:20 +02001785 if (logsrv->type == LOG_TARGET_BUFFER) {
Emeric Brun54648852020-07-06 15:54:06 +02001786 struct ist msg;
1787
1788 msg = ist2(message, size);
1789 if (msg.len > logsrv->maxlen)
1790 msg.len = logsrv->maxlen;
Willy Tarreaud52a7f82019-08-30 14:05:35 +02001791
Willy Tarreaua5b325f2020-09-04 16:44:20 +02001792 sent = sink_write(logsrv->sink, &msg, 1, level, logsrv->facility, metadata);
1793 }
1794 else if (logsrv->addr.ss_family == AF_CUST_EXISTING_FD) {
1795 struct ist msg;
1796
1797 msg = ist2(message, size);
1798 if (msg.len > logsrv->maxlen)
1799 msg.len = logsrv->maxlen;
1800
1801 sent = fd_write_frag_line(*plogfd, logsrv->maxlen, msg_header, nbelem, &msg, 1, 1);
Frédéric Lécaille0bad8402019-04-10 08:22:17 +02001802 }
1803 else {
Emeric Brun54648852020-07-06 15:54:06 +02001804 int i = 0;
1805 int totlen = logsrv->maxlen;
1806
1807 for (i = 0 ; i < nbelem ; i++ ) {
1808 iovec[i].iov_base = msg_header[i].ptr;
1809 iovec[i].iov_len = msg_header[i].len;
1810 if (totlen <= iovec[i].iov_len) {
1811 iovec[i].iov_len = totlen;
1812 totlen = 0;
1813 break;
1814 }
1815 totlen -= iovec[i].iov_len;
1816 }
1817 if (totlen) {
1818 iovec[i].iov_base = message;
1819 iovec[i].iov_len = size;
1820 if (totlen <= iovec[i].iov_len)
1821 iovec[i].iov_len = totlen;
1822 i++;
1823 }
1824 iovec[i].iov_base = "\n"; /* insert a \n at the end of the message */
1825 iovec[i].iov_len = 1;
1826 i++;
Willy Tarreaud52a7f82019-08-30 14:05:35 +02001827
Emeric Brun54648852020-07-06 15:54:06 +02001828 msghdr.msg_iovlen = i;
Frédéric Lécaille0bad8402019-04-10 08:22:17 +02001829 msghdr.msg_name = (struct sockaddr *)&logsrv->addr;
1830 msghdr.msg_namelen = get_addr_len(&logsrv->addr);
Dragan Dosen43885c72015-10-01 13:18:13 +02001831
Frédéric Lécaille0bad8402019-04-10 08:22:17 +02001832 sent = sendmsg(*plogfd, &msghdr, MSG_DONTWAIT | MSG_NOSIGNAL);
1833 }
Dragan Dosen43885c72015-10-01 13:18:13 +02001834
Frédéric Lécaille0bad8402019-04-10 08:22:17 +02001835 if (sent < 0) {
1836 static char once;
Dragan Dosen43885c72015-10-01 13:18:13 +02001837
Frédéric Lécaille0bad8402019-04-10 08:22:17 +02001838 if (errno == EAGAIN)
1839 _HA_ATOMIC_ADD(&dropped_logs, 1);
1840 else if (!once) {
1841 once = 1; /* note: no need for atomic ops here */
1842 ha_alert("sendmsg()/writev() failed in logger #%d: %s (errno=%d)\n",
1843 nblogger, strerror(errno), errno);
Dragan Dosen0b85ece2015-09-25 19:17:44 +02001844 }
Frédéric Lécaille0bad8402019-04-10 08:22:17 +02001845 }
1846}
Dragan Dosen59cee972015-09-19 22:09:02 +02001847
Frédéric Lécaille0bad8402019-04-10 08:22:17 +02001848/*
1849 * This function sends a syslog message.
1850 * It doesn't care about errors nor does it report them.
Emeric Brun54648852020-07-06 15:54:06 +02001851 * The argument <metadata> MUST be an array of size
1852 * LOG_META_FIELDS*sizeof(struct ist) containing
1853 * data to build the header.
Frédéric Lécaille0bad8402019-04-10 08:22:17 +02001854 */
Emeric Brun54648852020-07-06 15:54:06 +02001855void process_send_log(struct list *logsrvs, int level, int facility,
1856 struct ist *metadata, char *message, size_t size)
Frédéric Lécaille0bad8402019-04-10 08:22:17 +02001857{
Frédéric Lécaille0bad8402019-04-10 08:22:17 +02001858 struct logsrv *logsrv;
1859 int nblogger;
Frédéric Lécaille0bad8402019-04-10 08:22:17 +02001860
1861 /* Send log messages to syslog server. */
1862 nblogger = 0;
1863 list_for_each_entry(logsrv, logsrvs, list) {
Emeric Brun2f4cc282020-07-10 15:47:11 +02001864 int in_range = 1;
Frédéric Lécailled803e472019-04-25 07:42:09 +02001865
Frédéric Lécaille0bad8402019-04-10 08:22:17 +02001866 /* we can filter the level of the messages that are sent to each logger */
1867 if (level > logsrv->level)
1868 continue;
1869
Frédéric Lécailled803e472019-04-25 07:42:09 +02001870 if (logsrv->lb.smp_rgs) {
1871 struct smp_log_range *curr_rg;
1872
1873 HA_SPIN_LOCK(LOGSRV_LOCK, &logsrv->lock);
1874 curr_rg = &logsrv->lb.smp_rgs[logsrv->lb.curr_rg];
1875 in_range = in_smp_log_range(curr_rg, logsrv->lb.curr_idx);
1876 if (in_range) {
1877 /* Let's consume this range. */
1878 curr_rg->curr_idx = (curr_rg->curr_idx + 1) % curr_rg->sz;
1879 if (!curr_rg->curr_idx) {
1880 /* If consumed, let's select the next range. */
1881 logsrv->lb.curr_rg = (logsrv->lb.curr_rg + 1) % logsrv->lb.smp_rgs_sz;
1882 }
1883 }
1884 logsrv->lb.curr_idx = (logsrv->lb.curr_idx + 1) % logsrv->lb.smp_sz;
1885 HA_SPIN_UNLOCK(LOGSRV_LOCK, &logsrv->lock);
1886 }
1887 if (in_range)
Emeric Brun54648852020-07-06 15:54:06 +02001888 __do_send_log(logsrv, ++nblogger, MAX(level, logsrv->minlvl),
1889 (facility == -1) ? logsrv->facility : facility,
1890 metadata, message, size);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001891 }
1892}
1893
Emeric Brun54648852020-07-06 15:54:06 +02001894/*
1895 * This function sends a syslog message.
1896 * It doesn't care about errors nor does it report them.
1897 * The arguments <sd> and <sd_size> are used for the structured-data part
1898 * in RFC5424 formatted syslog messages.
1899 */
1900void __send_log(struct list *logsrvs, struct buffer *tagb, int level,
1901 char *message, size_t size, char *sd, size_t sd_size)
1902{
1903 static THREAD_LOCAL pid_t curr_pid;
1904 static THREAD_LOCAL char pidstr[16];
1905 static THREAD_LOCAL struct ist metadata[LOG_META_FIELDS];
1906
1907 if (logsrvs == NULL) {
1908 if (!LIST_ISEMPTY(&global.logsrvs)) {
1909 logsrvs = &global.logsrvs;
1910 }
1911 }
1912 if (!logsrvs || LIST_ISEMPTY(logsrvs))
1913 return;
1914
1915 if (!metadata[LOG_META_HOST].len) {
1916 if (global.log_send_hostname)
1917 metadata[LOG_META_HOST] = ist2(global.log_send_hostname, strlen(global.log_send_hostname));
1918 else
1919 metadata[LOG_META_HOST] = ist2(hostname, strlen(hostname));
1920 }
1921
1922 if (!tagb || !tagb->area)
1923 tagb = &global.log_tag;
1924
1925 if (tagb)
1926 metadata[LOG_META_TAG] = ist2(tagb->area, tagb->data);
1927
1928 if (unlikely(curr_pid != getpid()))
1929 metadata[LOG_META_PID].len = 0;
1930
1931 if (!metadata[LOG_META_PID].len) {
1932 curr_pid = getpid();
1933 ltoa_o(curr_pid, pidstr, sizeof(pidstr));
1934 metadata[LOG_META_PID] = ist2(pidstr, strlen(pidstr));
1935 }
1936
1937 metadata[LOG_META_STDATA] = ist2(sd, sd_size);
1938
1939 /* Remove trailing space of structured data */
1940 while (metadata[LOG_META_STDATA].len && metadata[LOG_META_STDATA].ptr[metadata[LOG_META_STDATA].len-1] == ' ')
1941 metadata[LOG_META_STDATA].len--;
1942
1943 return process_send_log(logsrvs, level, -1, metadata, message, size);
1944}
Willy Tarreaubaaee002006-06-26 02:48:02 +02001945
Willy Tarreauc89ccb62012-04-05 21:18:22 +02001946const char sess_cookie[8] = "NIDVEOU7"; /* No cookie, Invalid cookie, cookie for a Down server, Valid cookie, Expired cookie, Old cookie, Unused, unknown */
William Lallemandbddd4fd2012-02-27 11:23:10 +01001947const char sess_set_cookie[8] = "NPDIRU67"; /* No set-cookie, Set-cookie found and left unchanged (passive),
1948 Set-cookie Deleted, Set-Cookie Inserted, Set-cookie Rewritten,
1949 Set-cookie Updated, unknown, unknown */
1950
William Lallemand1d705562012-03-12 12:46:41 +01001951/*
1952 * try to write a character if there is enough space, or goto out
1953 */
William Lallemandbddd4fd2012-02-27 11:23:10 +01001954#define LOGCHAR(x) do { \
William Lallemand1d705562012-03-12 12:46:41 +01001955 if (tmplog < dst + maxsize - 1) { \
William Lallemandbddd4fd2012-02-27 11:23:10 +01001956 *(tmplog++) = (x); \
1957 } else { \
1958 goto out; \
1959 } \
1960 } while(0)
1961
Dragan Dosen835b9212016-02-12 13:23:03 +01001962
Willy Tarreaub6b3df32018-11-26 16:31:20 +01001963/* Initializes some log data at boot */
1964static void init_log()
Dragan Dosen835b9212016-02-12 13:23:03 +01001965{
1966 char *tmp;
Willy Tarreaue10cd482018-09-10 18:16:53 +02001967 int i;
Dragan Dosen835b9212016-02-12 13:23:03 +01001968
1969 /* Initialize the escape map for the RFC5424 structured-data : '"\]'
1970 * inside PARAM-VALUE should be escaped with '\' as prefix.
1971 * See https://tools.ietf.org/html/rfc5424#section-6.3.3 for more
1972 * details.
1973 */
1974 memset(rfc5424_escape_map, 0, sizeof(rfc5424_escape_map));
1975
1976 tmp = "\"\\]";
1977 while (*tmp) {
Willy Tarreau1bfd6022019-06-07 11:10:07 +02001978 ha_bit_set(*tmp, rfc5424_escape_map);
Dragan Dosen835b9212016-02-12 13:23:03 +01001979 tmp++;
1980 }
Willy Tarreaue10cd482018-09-10 18:16:53 +02001981
1982 /* initialize the log header encoding map : '{|}"#' should be encoded with
1983 * '#' as prefix, as well as non-printable characters ( <32 or >= 127 ).
1984 * URL encoding only requires '"', '#' to be encoded as well as non-
1985 * printable characters above.
1986 */
1987 memset(hdr_encode_map, 0, sizeof(hdr_encode_map));
1988 memset(url_encode_map, 0, sizeof(url_encode_map));
1989 for (i = 0; i < 32; i++) {
Willy Tarreau1bfd6022019-06-07 11:10:07 +02001990 ha_bit_set(i, hdr_encode_map);
1991 ha_bit_set(i, url_encode_map);
Willy Tarreaue10cd482018-09-10 18:16:53 +02001992 }
1993 for (i = 127; i < 256; i++) {
Willy Tarreau1bfd6022019-06-07 11:10:07 +02001994 ha_bit_set(i, hdr_encode_map);
1995 ha_bit_set(i, url_encode_map);
Willy Tarreaue10cd482018-09-10 18:16:53 +02001996 }
1997
1998 tmp = "\"#{|}";
1999 while (*tmp) {
Willy Tarreau1bfd6022019-06-07 11:10:07 +02002000 ha_bit_set(*tmp, hdr_encode_map);
Willy Tarreaue10cd482018-09-10 18:16:53 +02002001 tmp++;
2002 }
2003
2004 tmp = "\"#";
2005 while (*tmp) {
Willy Tarreau1bfd6022019-06-07 11:10:07 +02002006 ha_bit_set(*tmp, url_encode_map);
Willy Tarreaue10cd482018-09-10 18:16:53 +02002007 tmp++;
2008 }
2009
2010 /* initialize the http header encoding map. The draft httpbis define the
2011 * header content as:
2012 *
2013 * HTTP-message = start-line
2014 * *( header-field CRLF )
2015 * CRLF
2016 * [ message-body ]
2017 * header-field = field-name ":" OWS field-value OWS
2018 * field-value = *( field-content / obs-fold )
2019 * field-content = field-vchar [ 1*( SP / HTAB ) field-vchar ]
2020 * obs-fold = CRLF 1*( SP / HTAB )
2021 * field-vchar = VCHAR / obs-text
2022 * VCHAR = %x21-7E
2023 * obs-text = %x80-FF
2024 *
2025 * All the chars are encoded except "VCHAR", "obs-text", SP and HTAB.
2026 * The encoded chars are form 0x00 to 0x08, 0x0a to 0x1f and 0x7f. The
Joseph Herlant85b40592018-11-15 12:10:04 -08002027 * "obs-fold" is voluntarily forgotten because haproxy remove this.
Willy Tarreaue10cd482018-09-10 18:16:53 +02002028 */
2029 memset(http_encode_map, 0, sizeof(http_encode_map));
2030 for (i = 0x00; i <= 0x08; i++)
Willy Tarreau1bfd6022019-06-07 11:10:07 +02002031 ha_bit_set(i, http_encode_map);
Willy Tarreaue10cd482018-09-10 18:16:53 +02002032 for (i = 0x0a; i <= 0x1f; i++)
Willy Tarreau1bfd6022019-06-07 11:10:07 +02002033 ha_bit_set(i, http_encode_map);
2034 ha_bit_set(0x7f, http_encode_map);
Dragan Dosen835b9212016-02-12 13:23:03 +01002035}
William Lallemand1d705562012-03-12 12:46:41 +01002036
Willy Tarreaub6b3df32018-11-26 16:31:20 +01002037INITCALL0(STG_PREPARE, init_log);
2038
Christopher Faulet0132d062017-07-26 15:33:35 +02002039/* Initialize log buffers used for syslog messages */
2040int init_log_buffers()
2041{
Christopher Faulet0132d062017-07-26 15:33:35 +02002042 logline = my_realloc2(logline, global.max_syslog_len + 1);
2043 logline_rfc5424 = my_realloc2(logline_rfc5424, global.max_syslog_len + 1);
Emeric Brun54648852020-07-06 15:54:06 +02002044 if (!logline || !logline_rfc5424)
Christopher Faulet0132d062017-07-26 15:33:35 +02002045 return 0;
2046 return 1;
2047}
2048
2049/* Deinitialize log buffers used for syslog messages */
2050void deinit_log_buffers()
2051{
Christopher Faulet0132d062017-07-26 15:33:35 +02002052 free(logline);
2053 free(logline_rfc5424);
Willy Tarreau869efd52019-11-15 15:16:57 +01002054 ring_free(_HA_ATOMIC_XCHG(&startup_logs, NULL));
Christopher Faulet0132d062017-07-26 15:33:35 +02002055 logline = NULL;
2056 logline_rfc5424 = NULL;
2057}
2058
Willy Tarreaudf974472012-12-28 02:44:01 +01002059/* Builds a log line in <dst> based on <list_format>, and stops before reaching
2060 * <maxsize> characters. Returns the size of the output string in characters,
2061 * not counting the trailing zero which is always added if the resulting size
Willy Tarreau09bb27c2018-09-05 16:55:15 +02002062 * is not zero. It requires a valid session and optionally a stream. If the
2063 * stream is NULL, default values will be assumed for the stream part.
Willy Tarreaudf974472012-12-28 02:44:01 +01002064 */
Willy Tarreau43c538e2018-09-05 14:58:15 +02002065int sess_build_logline(struct session *sess, struct stream *s, char *dst, size_t maxsize, struct list *list_format)
Willy Tarreaubaaee002006-06-26 02:48:02 +02002066{
Willy Tarreaue36cbcb2015-04-03 15:40:56 +02002067 struct proxy *fe = sess->fe;
Willy Tarreau09bb27c2018-09-05 16:55:15 +02002068 struct proxy *be;
2069 struct http_txn *txn;
2070 const struct strm_logs *logs;
Willy Tarreau8fa99842019-07-17 11:47:11 +02002071 struct connection *be_conn;
Willy Tarreau09bb27c2018-09-05 16:55:15 +02002072 unsigned int s_flags;
2073 unsigned int uniq_id;
Willy Tarreau83061a82018-07-13 11:56:34 +02002074 struct buffer chunk;
William Lallemandbddd4fd2012-02-27 11:23:10 +01002075 char *uri;
Andrew Hayworth0ebc55f2015-04-27 21:37:03 +00002076 char *spc;
Andrew Hayworthe63ac872015-07-31 16:14:16 +00002077 char *qmark;
Andrew Hayworth0ebc55f2015-04-27 21:37:03 +00002078 char *end;
Willy Tarreaufe944602007-10-25 10:34:16 +02002079 struct tm tm;
William Lallemandbddd4fd2012-02-27 11:23:10 +01002080 int t_request;
2081 int hdr;
2082 int last_isspace = 1;
Andrew Hayworth0ebc55f2015-04-27 21:37:03 +00002083 int nspaces = 0;
Willy Tarreaub1a2faf2012-03-19 16:51:53 +01002084 char *tmplog;
William Lallemand1d705562012-03-12 12:46:41 +01002085 char *ret;
2086 int iret;
William Lallemandbddd4fd2012-02-27 11:23:10 +01002087 struct logformat_node *tmp;
Thierry FOURNIER / OZON.IO4cac3592016-07-28 17:19:45 +02002088 struct timeval tv;
Willy Tarreau09bb27c2018-09-05 16:55:15 +02002089 struct strm_logs tmp_strm_log;
Willy Tarreaubaaee002006-06-26 02:48:02 +02002090
William Lallemandbddd4fd2012-02-27 11:23:10 +01002091 /* FIXME: let's limit ourselves to frontend logging for now. */
Willy Tarreaubaaee002006-06-26 02:48:02 +02002092
Willy Tarreau09bb27c2018-09-05 16:55:15 +02002093 if (likely(s)) {
2094 be = s->be;
2095 txn = s->txn;
2096 be_conn = cs_conn(objt_cs(s->si[1].end));
2097 s_flags = s->flags;
2098 uniq_id = s->uniq_id;
2099 logs = &s->logs;
2100 } else {
2101 /* we have no stream so we first need to initialize a few
2102 * things that are needed later. We do increment the request
2103 * ID so that it's uniquely assigned to this request just as
2104 * if the request had reached the point of being processed.
2105 * A request error is reported as it's the only element we have
2106 * here and which justifies emitting such a log.
2107 */
2108 be = fe;
2109 txn = NULL;
2110 be_conn = NULL;
2111 s_flags = SF_ERR_PRXCOND | SF_FINST_R;
Olivier Houchardd2ee3e72019-03-08 18:53:21 +01002112 uniq_id = _HA_ATOMIC_XADD(&global.req_count, 1);
Willy Tarreau09bb27c2018-09-05 16:55:15 +02002113
2114 /* prepare a valid log structure */
2115 tmp_strm_log.tv_accept = sess->tv_accept;
2116 tmp_strm_log.accept_date = sess->accept_date;
2117 tmp_strm_log.t_handshake = sess->t_handshake;
2118 tmp_strm_log.t_idle = tv_ms_elapsed(&sess->tv_accept, &now) - sess->t_handshake;
2119 tv_zero(&tmp_strm_log.tv_request);
2120 tmp_strm_log.t_queue = -1;
2121 tmp_strm_log.t_connect = -1;
2122 tmp_strm_log.t_data = -1;
2123 tmp_strm_log.t_close = tv_ms_elapsed(&sess->tv_accept, &now);
2124 tmp_strm_log.bytes_in = 0;
2125 tmp_strm_log.bytes_out = 0;
2126 tmp_strm_log.prx_queue_pos = 0;
2127 tmp_strm_log.srv_queue_pos = 0;
2128
2129 logs = &tmp_strm_log;
2130 }
2131
William Lallemandbddd4fd2012-02-27 11:23:10 +01002132 t_request = -1;
Willy Tarreau372ac5a2018-09-05 15:16:23 +02002133 if (tv_isge(&logs->tv_request, &logs->tv_accept))
2134 t_request = tv_ms_elapsed(&logs->tv_accept, &logs->tv_request);
William Lallemandbddd4fd2012-02-27 11:23:10 +01002135
William Lallemand1d705562012-03-12 12:46:41 +01002136 tmplog = dst;
Willy Tarreauc9bd0cc2009-05-10 11:57:02 +02002137
William Lallemandbddd4fd2012-02-27 11:23:10 +01002138 /* fill logbuffer */
William Lallemand1d705562012-03-12 12:46:41 +01002139 if (LIST_ISEMPTY(list_format))
2140 return 0;
William Lallemandbddd4fd2012-02-27 11:23:10 +01002141
William Lallemand1d705562012-03-12 12:46:41 +01002142 list_for_each_entry(tmp, list_format, list) {
Willy Tarreaub363a1f2013-10-01 10:45:07 +02002143 struct connection *conn;
Willy Tarreau4f653562012-10-12 19:48:16 +02002144 const char *src = NULL;
Willy Tarreauc8368452012-12-21 00:09:23 +01002145 struct sample *key;
Willy Tarreau83061a82018-07-13 11:56:34 +02002146 const struct buffer empty = { };
William Lallemandbddd4fd2012-02-27 11:23:10 +01002147
Willy Tarreauc8368452012-12-21 00:09:23 +01002148 switch (tmp->type) {
William Lallemand1d705562012-03-12 12:46:41 +01002149 case LOG_FMT_SEPARATOR:
William Lallemandbddd4fd2012-02-27 11:23:10 +01002150 if (!last_isspace) {
2151 LOGCHAR(' ');
2152 last_isspace = 1;
William Lallemandbddd4fd2012-02-27 11:23:10 +01002153 }
2154 break;
2155
William Lallemand1d705562012-03-12 12:46:41 +01002156 case LOG_FMT_TEXT: // text
William Lallemandbddd4fd2012-02-27 11:23:10 +01002157 src = tmp->arg;
William Lallemand5f232402012-04-05 18:02:55 +02002158 iret = strlcpy2(tmplog, src, dst + maxsize - tmplog);
William Lallemand1d705562012-03-12 12:46:41 +01002159 if (iret == 0)
William Lallemandbddd4fd2012-02-27 11:23:10 +01002160 goto out;
William Lallemand1d705562012-03-12 12:46:41 +01002161 tmplog += iret;
William Lallemandbddd4fd2012-02-27 11:23:10 +01002162 last_isspace = 0;
2163 break;
2164
Willy Tarreauc8368452012-12-21 00:09:23 +01002165 case LOG_FMT_EXPR: // sample expression, may be request or response
2166 key = NULL;
Christopher Faulet5f940702020-04-06 10:40:02 +02002167 if (tmp->options & LOG_OPT_REQ_CAP)
Adis Nezirovic79beb242015-07-06 15:41:02 +02002168 key = sample_fetch_as_type(be, sess, s, SMP_OPT_DIR_REQ|SMP_OPT_FINAL, tmp->expr, SMP_T_STR);
Christopher Faulet5f940702020-04-06 10:40:02 +02002169 if (!key && (tmp->options & LOG_OPT_RES_CAP))
Adis Nezirovic79beb242015-07-06 15:41:02 +02002170 key = sample_fetch_as_type(be, sess, s, SMP_OPT_DIR_RES|SMP_OPT_FINAL, tmp->expr, SMP_T_STR);
Thierry FOURNIERd048d8b2014-03-13 16:46:18 +01002171 if (tmp->options & LOG_OPT_HTTP)
Dragan Dosen835b9212016-02-12 13:23:03 +01002172 ret = lf_encode_chunk(tmplog, dst + maxsize,
2173 '%', http_encode_map, key ? &key->data.u.str : &empty, tmp);
Thierry FOURNIERd048d8b2014-03-13 16:46:18 +01002174 else
Willy Tarreau843b7cb2018-07-13 10:54:26 +02002175 ret = lf_text_len(tmplog,
2176 key ? key->data.u.str.area : NULL,
2177 key ? key->data.u.str.data : 0,
2178 dst + maxsize - tmplog,
2179 tmp);
Willy Tarreauc8368452012-12-21 00:09:23 +01002180 if (ret == 0)
2181 goto out;
2182 tmplog = ret;
2183 last_isspace = 0;
2184 break;
2185
Willy Tarreau2beef582012-12-20 17:22:52 +01002186 case LOG_FMT_CLIENTIP: // %ci
Willy Tarreau9ad7bd42015-04-03 19:19:59 +02002187 conn = objt_conn(sess->origin);
Willy Tarreau8fa99842019-07-17 11:47:11 +02002188 if (conn && conn_get_src(conn))
Willy Tarreau6c6365f2019-07-17 16:48:18 +02002189 ret = lf_ip(tmplog, (struct sockaddr *)conn->src, dst + maxsize - tmplog, tmp);
Willy Tarreaub363a1f2013-10-01 10:45:07 +02002190 else
2191 ret = lf_text_len(tmplog, NULL, 0, dst + maxsize - tmplog, tmp);
William Lallemand1d705562012-03-12 12:46:41 +01002192 if (ret == NULL)
William Lallemandbddd4fd2012-02-27 11:23:10 +01002193 goto out;
William Lallemand1d705562012-03-12 12:46:41 +01002194 tmplog = ret;
William Lallemandbddd4fd2012-02-27 11:23:10 +01002195 last_isspace = 0;
2196 break;
2197
Willy Tarreau2beef582012-12-20 17:22:52 +01002198 case LOG_FMT_CLIENTPORT: // %cp
Willy Tarreau9ad7bd42015-04-03 19:19:59 +02002199 conn = objt_conn(sess->origin);
Willy Tarreau8fa99842019-07-17 11:47:11 +02002200 if (conn && conn_get_src(conn)) {
Willy Tarreau6c6365f2019-07-17 16:48:18 +02002201 if (conn->src->ss_family == AF_UNIX) {
Willy Tarreaufb0afa72015-04-03 14:46:27 +02002202 ret = ltoa_o(sess->listener->luid, tmplog, dst + maxsize - tmplog);
Willy Tarreaub363a1f2013-10-01 10:45:07 +02002203 } else {
Willy Tarreau6c6365f2019-07-17 16:48:18 +02002204 ret = lf_port(tmplog, (struct sockaddr *)conn->src,
Willy Tarreaub363a1f2013-10-01 10:45:07 +02002205 dst + maxsize - tmplog, tmp);
2206 }
William Lallemand5f232402012-04-05 18:02:55 +02002207 }
Willy Tarreaub363a1f2013-10-01 10:45:07 +02002208 else
2209 ret = lf_text_len(tmplog, NULL, 0, dst + maxsize - tmplog, tmp);
2210
William Lallemand5f232402012-04-05 18:02:55 +02002211 if (ret == NULL)
2212 goto out;
2213 tmplog = ret;
2214 last_isspace = 0;
2215 break;
2216
Willy Tarreau2beef582012-12-20 17:22:52 +01002217 case LOG_FMT_FRONTENDIP: // %fi
Willy Tarreau9ad7bd42015-04-03 19:19:59 +02002218 conn = objt_conn(sess->origin);
Willy Tarreau8fa99842019-07-17 11:47:11 +02002219 if (conn && conn_get_dst(conn)) {
Willy Tarreau6c6365f2019-07-17 16:48:18 +02002220 ret = lf_ip(tmplog, (struct sockaddr *)conn->dst, dst + maxsize - tmplog, tmp);
Willy Tarreaub363a1f2013-10-01 10:45:07 +02002221 }
2222 else
2223 ret = lf_text_len(tmplog, NULL, 0, dst + maxsize - tmplog, tmp);
2224
William Lallemand1d705562012-03-12 12:46:41 +01002225 if (ret == NULL)
William Lallemandbddd4fd2012-02-27 11:23:10 +01002226 goto out;
William Lallemand1d705562012-03-12 12:46:41 +01002227 tmplog = ret;
William Lallemandbddd4fd2012-02-27 11:23:10 +01002228 last_isspace = 0;
2229 break;
2230
Willy Tarreau2beef582012-12-20 17:22:52 +01002231 case LOG_FMT_FRONTENDPORT: // %fp
Willy Tarreau9ad7bd42015-04-03 19:19:59 +02002232 conn = objt_conn(sess->origin);
Willy Tarreau8fa99842019-07-17 11:47:11 +02002233 if (conn && conn_get_dst(conn)) {
Willy Tarreau6c6365f2019-07-17 16:48:18 +02002234 if (conn->dst->ss_family == AF_UNIX)
Willy Tarreaufb0afa72015-04-03 14:46:27 +02002235 ret = ltoa_o(sess->listener->luid, tmplog, dst + maxsize - tmplog);
Willy Tarreaub363a1f2013-10-01 10:45:07 +02002236 else
Willy Tarreau6c6365f2019-07-17 16:48:18 +02002237 ret = lf_port(tmplog, (struct sockaddr *)conn->dst, dst + maxsize - tmplog, tmp);
William Lallemand5f232402012-04-05 18:02:55 +02002238 }
Willy Tarreaub363a1f2013-10-01 10:45:07 +02002239 else
2240 ret = lf_text_len(tmplog, NULL, 0, dst + maxsize - tmplog, tmp);
2241
William Lallemand5f232402012-04-05 18:02:55 +02002242 if (ret == NULL)
2243 goto out;
2244 tmplog = ret;
2245 last_isspace = 0;
2246 break;
2247
Willy Tarreau2beef582012-12-20 17:22:52 +01002248 case LOG_FMT_BACKENDIP: // %bi
Willy Tarreau8fa99842019-07-17 11:47:11 +02002249 if (be_conn && conn_get_src(be_conn))
Willy Tarreau6c6365f2019-07-17 16:48:18 +02002250 ret = lf_ip(tmplog, (const struct sockaddr *)be_conn->src, dst + maxsize - tmplog, tmp);
Willy Tarreaub363a1f2013-10-01 10:45:07 +02002251 else
2252 ret = lf_text_len(tmplog, NULL, 0, dst + maxsize - tmplog, tmp);
2253
William Lallemand1d705562012-03-12 12:46:41 +01002254 if (ret == NULL)
William Lallemandb7ff6a32012-03-02 14:35:21 +01002255 goto out;
William Lallemand1d705562012-03-12 12:46:41 +01002256 tmplog = ret;
William Lallemandb7ff6a32012-03-02 14:35:21 +01002257 last_isspace = 0;
2258 break;
2259
Willy Tarreau2beef582012-12-20 17:22:52 +01002260 case LOG_FMT_BACKENDPORT: // %bp
Willy Tarreau8fa99842019-07-17 11:47:11 +02002261 if (be_conn && conn_get_src(be_conn))
Willy Tarreau6c6365f2019-07-17 16:48:18 +02002262 ret = lf_port(tmplog, (struct sockaddr *)be_conn->src, dst + maxsize - tmplog, tmp);
Willy Tarreaub363a1f2013-10-01 10:45:07 +02002263 else
2264 ret = lf_text_len(tmplog, NULL, 0, dst + maxsize - tmplog, tmp);
2265
William Lallemand5f232402012-04-05 18:02:55 +02002266 if (ret == NULL)
2267 goto out;
2268 tmplog = ret;
2269 last_isspace = 0;
2270 break;
2271
Willy Tarreau2beef582012-12-20 17:22:52 +01002272 case LOG_FMT_SERVERIP: // %si
Willy Tarreau8fa99842019-07-17 11:47:11 +02002273 if (be_conn && conn_get_dst(be_conn))
Willy Tarreau6c6365f2019-07-17 16:48:18 +02002274 ret = lf_ip(tmplog, (struct sockaddr *)be_conn->dst, dst + maxsize - tmplog, tmp);
Willy Tarreaub363a1f2013-10-01 10:45:07 +02002275 else
2276 ret = lf_text_len(tmplog, NULL, 0, dst + maxsize - tmplog, tmp);
2277
William Lallemand5f232402012-04-05 18:02:55 +02002278 if (ret == NULL)
2279 goto out;
2280 tmplog = ret;
2281 last_isspace = 0;
2282 break;
2283
Willy Tarreau2beef582012-12-20 17:22:52 +01002284 case LOG_FMT_SERVERPORT: // %sp
Willy Tarreau8fa99842019-07-17 11:47:11 +02002285 if (be_conn && conn_get_dst(be_conn))
Willy Tarreau6c6365f2019-07-17 16:48:18 +02002286 ret = lf_port(tmplog, (struct sockaddr *)be_conn->dst, dst + maxsize - tmplog, tmp);
Willy Tarreaub363a1f2013-10-01 10:45:07 +02002287 else
2288 ret = lf_text_len(tmplog, NULL, 0, dst + maxsize - tmplog, tmp);
2289
William Lallemand1d705562012-03-12 12:46:41 +01002290 if (ret == NULL)
William Lallemandb7ff6a32012-03-02 14:35:21 +01002291 goto out;
William Lallemand1d705562012-03-12 12:46:41 +01002292 tmplog = ret;
William Lallemandb7ff6a32012-03-02 14:35:21 +01002293 last_isspace = 0;
2294 break;
2295
Thierry FOURNIER / OZON.IO4cac3592016-07-28 17:19:45 +02002296 case LOG_FMT_DATE: // %t = accept date
Willy Tarreau372ac5a2018-09-05 15:16:23 +02002297 get_localtime(logs->accept_date.tv_sec, &tm);
2298 ret = date2str_log(tmplog, &tm, &logs->accept_date, dst + maxsize - tmplog);
William Lallemand1d705562012-03-12 12:46:41 +01002299 if (ret == NULL)
William Lallemandbddd4fd2012-02-27 11:23:10 +01002300 goto out;
William Lallemand1d705562012-03-12 12:46:41 +01002301 tmplog = ret;
William Lallemandbddd4fd2012-02-27 11:23:10 +01002302 last_isspace = 0;
2303 break;
2304
Thierry FOURNIER / OZON.IO4cac3592016-07-28 17:19:45 +02002305 case LOG_FMT_tr: // %tr = start of request date
2306 /* Note that the timers are valid if we get here */
Willy Tarreau372ac5a2018-09-05 15:16:23 +02002307 tv_ms_add(&tv, &logs->accept_date, logs->t_idle >= 0 ? logs->t_idle + logs->t_handshake : 0);
Thierry FOURNIER / OZON.IO4cac3592016-07-28 17:19:45 +02002308 get_localtime(tv.tv_sec, &tm);
2309 ret = date2str_log(tmplog, &tm, &tv, dst + maxsize - tmplog);
2310 if (ret == NULL)
2311 goto out;
2312 tmplog = ret;
2313 last_isspace = 0;
2314 break;
2315
2316 case LOG_FMT_DATEGMT: // %T = accept date, GMT
Willy Tarreau372ac5a2018-09-05 15:16:23 +02002317 get_gmtime(logs->accept_date.tv_sec, &tm);
William Lallemand5f232402012-04-05 18:02:55 +02002318 ret = gmt2str_log(tmplog, &tm, dst + maxsize - tmplog);
William Lallemand1d705562012-03-12 12:46:41 +01002319 if (ret == NULL)
William Lallemandbddd4fd2012-02-27 11:23:10 +01002320 goto out;
William Lallemand1d705562012-03-12 12:46:41 +01002321 tmplog = ret;
William Lallemandbddd4fd2012-02-27 11:23:10 +01002322 last_isspace = 0;
2323 break;
2324
Thierry FOURNIER / OZON.IO4cac3592016-07-28 17:19:45 +02002325 case LOG_FMT_trg: // %trg = start of request date, GMT
Willy Tarreau372ac5a2018-09-05 15:16:23 +02002326 tv_ms_add(&tv, &logs->accept_date, logs->t_idle >= 0 ? logs->t_idle + logs->t_handshake : 0);
Thierry FOURNIER / OZON.IO4cac3592016-07-28 17:19:45 +02002327 get_gmtime(tv.tv_sec, &tm);
2328 ret = gmt2str_log(tmplog, &tm, dst + maxsize - tmplog);
2329 if (ret == NULL)
2330 goto out;
2331 tmplog = ret;
2332 last_isspace = 0;
2333 break;
2334
2335 case LOG_FMT_DATELOCAL: // %Tl = accept date, local
Willy Tarreau372ac5a2018-09-05 15:16:23 +02002336 get_localtime(logs->accept_date.tv_sec, &tm);
2337 ret = localdate2str_log(tmplog, logs->accept_date.tv_sec, &tm, dst + maxsize - tmplog);
Yuxans Yao4e25b012012-10-19 10:36:09 +08002338 if (ret == NULL)
2339 goto out;
2340 tmplog = ret;
2341 last_isspace = 0;
2342 break;
2343
Thierry FOURNIER / OZON.IO4cac3592016-07-28 17:19:45 +02002344 case LOG_FMT_trl: // %trl = start of request date, local
Willy Tarreau372ac5a2018-09-05 15:16:23 +02002345 tv_ms_add(&tv, &logs->accept_date, logs->t_idle >= 0 ? logs->t_idle + logs->t_handshake : 0);
Thierry FOURNIER / OZON.IO4cac3592016-07-28 17:19:45 +02002346 get_localtime(tv.tv_sec, &tm);
2347 ret = localdate2str_log(tmplog, tv.tv_sec, &tm, dst + maxsize - tmplog);
2348 if (ret == NULL)
2349 goto out;
2350 tmplog = ret;
2351 last_isspace = 0;
2352 break;
2353
William Lallemand5f232402012-04-05 18:02:55 +02002354 case LOG_FMT_TS: // %Ts
William Lallemand5f232402012-04-05 18:02:55 +02002355 if (tmp->options & LOG_OPT_HEXA) {
Willy Tarreau372ac5a2018-09-05 15:16:23 +02002356 iret = snprintf(tmplog, dst + maxsize - tmplog, "%04X", (unsigned int)logs->accept_date.tv_sec);
William Lallemand5f232402012-04-05 18:02:55 +02002357 if (iret < 0 || iret > dst + maxsize - tmplog)
2358 goto out;
2359 last_isspace = 0;
2360 tmplog += iret;
2361 } else {
Willy Tarreau372ac5a2018-09-05 15:16:23 +02002362 ret = ltoa_o(logs->accept_date.tv_sec, tmplog, dst + maxsize - tmplog);
William Lallemand5f232402012-04-05 18:02:55 +02002363 if (ret == NULL)
2364 goto out;
2365 tmplog = ret;
2366 last_isspace = 0;
2367 }
2368 break;
2369
William Lallemand1d705562012-03-12 12:46:41 +01002370 case LOG_FMT_MS: // %ms
William Lallemand5f232402012-04-05 18:02:55 +02002371 if (tmp->options & LOG_OPT_HEXA) {
Willy Tarreau372ac5a2018-09-05 15:16:23 +02002372 iret = snprintf(tmplog, dst + maxsize - tmplog, "%02X",(unsigned int)logs->accept_date.tv_usec/1000);
William Lallemand5f232402012-04-05 18:02:55 +02002373 if (iret < 0 || iret > dst + maxsize - tmplog)
2374 goto out;
2375 last_isspace = 0;
2376 tmplog += iret;
2377 } else {
2378 if ((dst + maxsize - tmplog) < 4)
William Lallemandbddd4fd2012-02-27 11:23:10 +01002379 goto out;
Willy Tarreau372ac5a2018-09-05 15:16:23 +02002380 ret = utoa_pad((unsigned int)logs->accept_date.tv_usec/1000,
Willy Tarreau9e60cd82013-01-24 01:18:16 +01002381 tmplog, 4);
2382 if (ret == NULL)
William Lallemand51b5dca2012-03-26 17:52:55 +02002383 goto out;
Willy Tarreau9e60cd82013-01-24 01:18:16 +01002384 tmplog = ret;
William Lallemandbddd4fd2012-02-27 11:23:10 +01002385 last_isspace = 0;
William Lallemand5f232402012-04-05 18:02:55 +02002386 }
2387 break;
William Lallemandbddd4fd2012-02-27 11:23:10 +01002388
William Lallemand1d705562012-03-12 12:46:41 +01002389 case LOG_FMT_FRONTEND: // %f
William Lallemandbddd4fd2012-02-27 11:23:10 +01002390 src = fe->id;
William Lallemand5f232402012-04-05 18:02:55 +02002391 ret = lf_text(tmplog, src, dst + maxsize - tmplog, tmp);
William Lallemand1d705562012-03-12 12:46:41 +01002392 if (ret == NULL)
William Lallemandbddd4fd2012-02-27 11:23:10 +01002393 goto out;
William Lallemand1d705562012-03-12 12:46:41 +01002394 tmplog = ret;
William Lallemand51b5dca2012-03-26 17:52:55 +02002395 last_isspace = 0;
William Lallemandbddd4fd2012-02-27 11:23:10 +01002396 break;
2397
Willy Tarreau773d65f2012-10-12 14:56:11 +02002398 case LOG_FMT_FRONTEND_XPRT: // %ft
2399 src = fe->id;
2400 if (tmp->options & LOG_OPT_QUOTE)
2401 LOGCHAR('"');
2402 iret = strlcpy2(tmplog, src, dst + maxsize - tmplog);
2403 if (iret == 0)
2404 goto out;
2405 tmplog += iret;
Willy Tarreaua261e9b2016-12-22 20:44:00 +01002406 if (sess->listener->bind_conf->xprt == xprt_get(XPRT_SSL))
Willy Tarreau773d65f2012-10-12 14:56:11 +02002407 LOGCHAR('~');
Willy Tarreau773d65f2012-10-12 14:56:11 +02002408 if (tmp->options & LOG_OPT_QUOTE)
2409 LOGCHAR('"');
2410 last_isspace = 0;
2411 break;
Willy Tarreauffc3fcd2012-10-12 20:17:54 +02002412#ifdef USE_OPENSSL
2413 case LOG_FMT_SSL_CIPHER: // %sslc
2414 src = NULL;
Willy Tarreau9ad7bd42015-04-03 19:19:59 +02002415 conn = objt_conn(sess->origin);
Willy Tarreaub363a1f2013-10-01 10:45:07 +02002416 if (conn) {
Emmanuel Hocdet01da5712017-10-13 16:59:49 +02002417 src = ssl_sock_get_cipher_name(conn);
Willy Tarreaub363a1f2013-10-01 10:45:07 +02002418 }
Willy Tarreauffc3fcd2012-10-12 20:17:54 +02002419 ret = lf_text(tmplog, src, dst + maxsize - tmplog, tmp);
2420 if (ret == NULL)
2421 goto out;
2422 tmplog = ret;
2423 last_isspace = 0;
2424 break;
Willy Tarreau773d65f2012-10-12 14:56:11 +02002425
Willy Tarreauffc3fcd2012-10-12 20:17:54 +02002426 case LOG_FMT_SSL_VERSION: // %sslv
2427 src = NULL;
Willy Tarreau9ad7bd42015-04-03 19:19:59 +02002428 conn = objt_conn(sess->origin);
Willy Tarreaub363a1f2013-10-01 10:45:07 +02002429 if (conn) {
Emmanuel Hocdet01da5712017-10-13 16:59:49 +02002430 src = ssl_sock_get_proto_version(conn);
Willy Tarreaub363a1f2013-10-01 10:45:07 +02002431 }
Willy Tarreauffc3fcd2012-10-12 20:17:54 +02002432 ret = lf_text(tmplog, src, dst + maxsize - tmplog, tmp);
2433 if (ret == NULL)
2434 goto out;
2435 tmplog = ret;
2436 last_isspace = 0;
2437 break;
2438#endif
William Lallemand1d705562012-03-12 12:46:41 +01002439 case LOG_FMT_BACKEND: // %b
William Lallemandbddd4fd2012-02-27 11:23:10 +01002440 src = be->id;
William Lallemand5f232402012-04-05 18:02:55 +02002441 ret = lf_text(tmplog, src, dst + maxsize - tmplog, tmp);
William Lallemand1d705562012-03-12 12:46:41 +01002442 if (ret == NULL)
William Lallemandbddd4fd2012-02-27 11:23:10 +01002443 goto out;
William Lallemand1d705562012-03-12 12:46:41 +01002444 tmplog = ret;
William Lallemand51b5dca2012-03-26 17:52:55 +02002445 last_isspace = 0;
William Lallemandbddd4fd2012-02-27 11:23:10 +01002446 break;
2447
William Lallemand1d705562012-03-12 12:46:41 +01002448 case LOG_FMT_SERVER: // %s
Willy Tarreaue1809df2018-09-05 15:30:16 +02002449 switch (obj_type(s ? s->target : NULL)) {
Willy Tarreaud79a3b22012-12-28 09:40:16 +01002450 case OBJ_TYPE_SERVER:
Willy Tarreau1aaf3242018-09-20 11:13:58 +02002451 src = __objt_server(s->target)->id;
Willy Tarreaud79a3b22012-12-28 09:40:16 +01002452 break;
2453 case OBJ_TYPE_APPLET:
Willy Tarreau1aaf3242018-09-20 11:13:58 +02002454 src = __objt_applet(s->target)->name;
Willy Tarreaud79a3b22012-12-28 09:40:16 +01002455 break;
2456 default:
2457 src = "<NOSRV>";
2458 break;
2459 }
William Lallemand5f232402012-04-05 18:02:55 +02002460 ret = lf_text(tmplog, src, dst + maxsize - tmplog, tmp);
William Lallemand1d705562012-03-12 12:46:41 +01002461 if (ret == NULL)
William Lallemandbddd4fd2012-02-27 11:23:10 +01002462 goto out;
William Lallemand1d705562012-03-12 12:46:41 +01002463 tmplog = ret;
William Lallemandbddd4fd2012-02-27 11:23:10 +01002464 last_isspace = 0;
2465 break;
2466
Thierry FOURNIER / OZON.IO4cac3592016-07-28 17:19:45 +02002467 case LOG_FMT_Th: // %Th = handshake time
Willy Tarreau372ac5a2018-09-05 15:16:23 +02002468 ret = ltoa_o(logs->t_handshake, tmplog, dst + maxsize - tmplog);
Thierry FOURNIER / OZON.IO4cac3592016-07-28 17:19:45 +02002469 if (ret == NULL)
2470 goto out;
2471 tmplog = ret;
2472 last_isspace = 0;
2473 break;
2474
2475 case LOG_FMT_Ti: // %Ti = HTTP idle time
Willy Tarreau372ac5a2018-09-05 15:16:23 +02002476 ret = ltoa_o(logs->t_idle, tmplog, dst + maxsize - tmplog);
Thierry FOURNIER / OZON.IO4cac3592016-07-28 17:19:45 +02002477 if (ret == NULL)
2478 goto out;
2479 tmplog = ret;
2480 last_isspace = 0;
2481 break;
2482
2483 case LOG_FMT_TR: // %TR = HTTP request time
Willy Tarreau372ac5a2018-09-05 15:16:23 +02002484 ret = ltoa_o((t_request >= 0) ? t_request - logs->t_idle - logs->t_handshake : -1,
Thierry FOURNIER / OZON.IO4cac3592016-07-28 17:19:45 +02002485 tmplog, dst + maxsize - tmplog);
2486 if (ret == NULL)
2487 goto out;
2488 tmplog = ret;
2489 last_isspace = 0;
2490 break;
2491
2492 case LOG_FMT_TQ: // %Tq = Th + Ti + TR
William Lallemand5f232402012-04-05 18:02:55 +02002493 ret = ltoa_o(t_request, tmplog, dst + maxsize - tmplog);
William Lallemand1d705562012-03-12 12:46:41 +01002494 if (ret == NULL)
William Lallemandbddd4fd2012-02-27 11:23:10 +01002495 goto out;
William Lallemand1d705562012-03-12 12:46:41 +01002496 tmplog = ret;
William Lallemandbddd4fd2012-02-27 11:23:10 +01002497 last_isspace = 0;
2498 break;
2499
William Lallemand1d705562012-03-12 12:46:41 +01002500 case LOG_FMT_TW: // %Tw
Willy Tarreau372ac5a2018-09-05 15:16:23 +02002501 ret = ltoa_o((logs->t_queue >= 0) ? logs->t_queue - t_request : -1,
William Lallemand5f232402012-04-05 18:02:55 +02002502 tmplog, dst + maxsize - tmplog);
William Lallemand1d705562012-03-12 12:46:41 +01002503 if (ret == NULL)
William Lallemandbddd4fd2012-02-27 11:23:10 +01002504 goto out;
William Lallemand1d705562012-03-12 12:46:41 +01002505 tmplog = ret;
William Lallemandbddd4fd2012-02-27 11:23:10 +01002506 last_isspace = 0;
2507 break;
2508
William Lallemand1d705562012-03-12 12:46:41 +01002509 case LOG_FMT_TC: // %Tc
Willy Tarreau372ac5a2018-09-05 15:16:23 +02002510 ret = ltoa_o((logs->t_connect >= 0) ? logs->t_connect - logs->t_queue : -1,
William Lallemand5f232402012-04-05 18:02:55 +02002511 tmplog, dst + maxsize - tmplog);
William Lallemand1d705562012-03-12 12:46:41 +01002512 if (ret == NULL)
William Lallemandbddd4fd2012-02-27 11:23:10 +01002513 goto out;
William Lallemand1d705562012-03-12 12:46:41 +01002514 tmplog = ret;
William Lallemandbddd4fd2012-02-27 11:23:10 +01002515 last_isspace = 0;
2516 break;
2517
Thierry FOURNIER / OZON.IO4cac3592016-07-28 17:19:45 +02002518 case LOG_FMT_Tr: // %Tr
Willy Tarreau372ac5a2018-09-05 15:16:23 +02002519 ret = ltoa_o((logs->t_data >= 0) ? logs->t_data - logs->t_connect : -1,
William Lallemand5f232402012-04-05 18:02:55 +02002520 tmplog, dst + maxsize - tmplog);
William Lallemand1d705562012-03-12 12:46:41 +01002521 if (ret == NULL)
William Lallemandbddd4fd2012-02-27 11:23:10 +01002522 goto out;
William Lallemand1d705562012-03-12 12:46:41 +01002523 tmplog = ret;
William Lallemandbddd4fd2012-02-27 11:23:10 +01002524 last_isspace = 0;
2525 break;
2526
Willy Tarreau27b639d2016-05-17 17:55:27 +02002527 case LOG_FMT_TD: // %Td
Willy Tarreaua21c0e62018-09-05 15:07:15 +02002528 if (be->mode == PR_MODE_HTTP)
Willy Tarreau372ac5a2018-09-05 15:16:23 +02002529 ret = ltoa_o((logs->t_data >= 0) ? logs->t_close - logs->t_data : -1,
Willy Tarreau27b639d2016-05-17 17:55:27 +02002530 tmplog, dst + maxsize - tmplog);
2531 else
Willy Tarreau372ac5a2018-09-05 15:16:23 +02002532 ret = ltoa_o((logs->t_connect >= 0) ? logs->t_close - logs->t_connect : -1,
Willy Tarreau27b639d2016-05-17 17:55:27 +02002533 tmplog, dst + maxsize - tmplog);
2534 if (ret == NULL)
2535 goto out;
2536 tmplog = ret;
2537 last_isspace = 0;
2538 break;
2539
Thierry FOURNIER / OZON.IO4cac3592016-07-28 17:19:45 +02002540 case LOG_FMT_Ta: // %Ta = active time = Tt - Th - Ti
2541 if (!(fe->to_log & LW_BYTES))
2542 LOGCHAR('+');
Willy Tarreau372ac5a2018-09-05 15:16:23 +02002543 ret = ltoa_o(logs->t_close - (logs->t_idle >= 0 ? logs->t_idle + logs->t_handshake : 0),
Thierry FOURNIER / OZON.IO4cac3592016-07-28 17:19:45 +02002544 tmplog, dst + maxsize - tmplog);
2545 if (ret == NULL)
2546 goto out;
2547 tmplog = ret;
2548 last_isspace = 0;
2549 break;
2550
2551 case LOG_FMT_TT: // %Tt = total time
Willy Tarreaud79a3b22012-12-28 09:40:16 +01002552 if (!(fe->to_log & LW_BYTES))
William Lallemand1d705562012-03-12 12:46:41 +01002553 LOGCHAR('+');
Willy Tarreau372ac5a2018-09-05 15:16:23 +02002554 ret = ltoa_o(logs->t_close, tmplog, dst + maxsize - tmplog);
William Lallemand1d705562012-03-12 12:46:41 +01002555 if (ret == NULL)
William Lallemandbddd4fd2012-02-27 11:23:10 +01002556 goto out;
William Lallemand1d705562012-03-12 12:46:41 +01002557 tmplog = ret;
William Lallemandbddd4fd2012-02-27 11:23:10 +01002558 last_isspace = 0;
2559 break;
2560
Damien Claisse57c8eb92020-04-28 12:09:19 +00002561 case LOG_FMT_TU: // %Tu = total time seen by user = Tt - Ti
2562 if (!(fe->to_log & LW_BYTES))
2563 LOGCHAR('+');
2564 ret = ltoa_o(logs->t_close - (logs->t_idle >= 0 ? logs->t_idle : 0),
2565 tmplog, dst + maxsize - tmplog);
2566 if (ret == NULL)
2567 goto out;
2568 tmplog = ret;
2569 last_isspace = 0;
2570 break;
2571
Willy Tarreau2beef582012-12-20 17:22:52 +01002572 case LOG_FMT_STATUS: // %ST
Willy Tarreau57bc8912016-04-25 17:09:40 +02002573 ret = ltoa_o(txn ? txn->status : 0, tmplog, dst + maxsize - tmplog);
William Lallemand1d705562012-03-12 12:46:41 +01002574 if (ret == NULL)
William Lallemandbddd4fd2012-02-27 11:23:10 +01002575 goto out;
William Lallemand1d705562012-03-12 12:46:41 +01002576 tmplog = ret;
William Lallemandbddd4fd2012-02-27 11:23:10 +01002577 last_isspace = 0;
2578 break;
2579
William Lallemand1d705562012-03-12 12:46:41 +01002580 case LOG_FMT_BYTES: // %B
Willy Tarreaud79a3b22012-12-28 09:40:16 +01002581 if (!(fe->to_log & LW_BYTES))
William Lallemand1d705562012-03-12 12:46:41 +01002582 LOGCHAR('+');
Willy Tarreau372ac5a2018-09-05 15:16:23 +02002583 ret = lltoa(logs->bytes_out, tmplog, dst + maxsize - tmplog);
William Lallemand1d705562012-03-12 12:46:41 +01002584 if (ret == NULL)
William Lallemandbddd4fd2012-02-27 11:23:10 +01002585 goto out;
William Lallemand1d705562012-03-12 12:46:41 +01002586 tmplog = ret;
William Lallemandbddd4fd2012-02-27 11:23:10 +01002587 last_isspace = 0;
2588 break;
2589
Willy Tarreauc5259fd2012-12-20 15:38:04 +01002590 case LOG_FMT_BYTES_UP: // %U
Willy Tarreau372ac5a2018-09-05 15:16:23 +02002591 ret = lltoa(logs->bytes_in, tmplog, dst + maxsize - tmplog);
Willy Tarreauc5259fd2012-12-20 15:38:04 +01002592 if (ret == NULL)
2593 goto out;
2594 tmplog = ret;
2595 last_isspace = 0;
2596 break;
2597
Willy Tarreau2beef582012-12-20 17:22:52 +01002598 case LOG_FMT_CCLIENT: // %CC
Willy Tarreau57bc8912016-04-25 17:09:40 +02002599 src = txn ? txn->cli_cookie : NULL;
William Lallemand5f232402012-04-05 18:02:55 +02002600 ret = lf_text(tmplog, src, dst + maxsize - tmplog, tmp);
William Lallemand1d705562012-03-12 12:46:41 +01002601 if (ret == NULL)
William Lallemand51b5dca2012-03-26 17:52:55 +02002602 goto out;
William Lallemand1d705562012-03-12 12:46:41 +01002603 tmplog = ret;
William Lallemandbddd4fd2012-02-27 11:23:10 +01002604 last_isspace = 0;
2605 break;
2606
Willy Tarreau2beef582012-12-20 17:22:52 +01002607 case LOG_FMT_CSERVER: // %CS
Willy Tarreau57bc8912016-04-25 17:09:40 +02002608 src = txn ? txn->srv_cookie : NULL;
William Lallemand5f232402012-04-05 18:02:55 +02002609 ret = lf_text(tmplog, src, dst + maxsize - tmplog, tmp);
William Lallemand1d705562012-03-12 12:46:41 +01002610 if (ret == NULL)
William Lallemand51b5dca2012-03-26 17:52:55 +02002611 goto out;
William Lallemand1d705562012-03-12 12:46:41 +01002612 tmplog = ret;
William Lallemandbddd4fd2012-02-27 11:23:10 +01002613 last_isspace = 0;
2614 break;
2615
William Lallemand1d705562012-03-12 12:46:41 +01002616 case LOG_FMT_TERMSTATE: // %ts
Willy Tarreaub8bc5252018-09-05 15:51:28 +02002617 LOGCHAR(sess_term_cond[(s_flags & SF_ERR_MASK) >> SF_ERR_SHIFT]);
2618 LOGCHAR(sess_fin_state[(s_flags & SF_FINST_MASK) >> SF_FINST_SHIFT]);
Willy Tarreau6580c062012-03-12 15:09:42 +01002619 *tmplog = '\0';
2620 last_isspace = 0;
2621 break;
William Lallemandbddd4fd2012-02-27 11:23:10 +01002622
William Lallemand1d705562012-03-12 12:46:41 +01002623 case LOG_FMT_TERMSTATE_CK: // %tsc, same as TS with cookie state (for mode HTTP)
Willy Tarreaub8bc5252018-09-05 15:51:28 +02002624 LOGCHAR(sess_term_cond[(s_flags & SF_ERR_MASK) >> SF_ERR_SHIFT]);
2625 LOGCHAR(sess_fin_state[(s_flags & SF_FINST_MASK) >> SF_FINST_SHIFT]);
Willy Tarreau57bc8912016-04-25 17:09:40 +02002626 LOGCHAR((txn && (be->ck_opts & PR_CK_ANY)) ? sess_cookie[(txn->flags & TX_CK_MASK) >> TX_CK_SHIFT] : '-');
2627 LOGCHAR((txn && (be->ck_opts & PR_CK_ANY)) ? sess_set_cookie[(txn->flags & TX_SCK_MASK) >> TX_SCK_SHIFT] : '-');
William Lallemandbddd4fd2012-02-27 11:23:10 +01002628 last_isspace = 0;
2629 break;
2630
William Lallemand1d705562012-03-12 12:46:41 +01002631 case LOG_FMT_ACTCONN: // %ac
William Lallemand5f232402012-04-05 18:02:55 +02002632 ret = ltoa_o(actconn, tmplog, dst + maxsize - tmplog);
William Lallemand1d705562012-03-12 12:46:41 +01002633 if (ret == NULL)
William Lallemandbddd4fd2012-02-27 11:23:10 +01002634 goto out;
William Lallemand1d705562012-03-12 12:46:41 +01002635 tmplog = ret;
William Lallemandbddd4fd2012-02-27 11:23:10 +01002636 last_isspace = 0;
2637 break;
2638
William Lallemand1d705562012-03-12 12:46:41 +01002639 case LOG_FMT_FECONN: // %fc
William Lallemand5f232402012-04-05 18:02:55 +02002640 ret = ltoa_o(fe->feconn, tmplog, dst + maxsize - tmplog);
William Lallemand1d705562012-03-12 12:46:41 +01002641 if (ret == NULL)
William Lallemandbddd4fd2012-02-27 11:23:10 +01002642 goto out;
William Lallemand1d705562012-03-12 12:46:41 +01002643 tmplog = ret;
William Lallemandbddd4fd2012-02-27 11:23:10 +01002644 last_isspace = 0;
2645 break;
2646
William Lallemand1d705562012-03-12 12:46:41 +01002647 case LOG_FMT_BECONN: // %bc
William Lallemand5f232402012-04-05 18:02:55 +02002648 ret = ltoa_o(be->beconn, tmplog, dst + maxsize - tmplog);
William Lallemand1d705562012-03-12 12:46:41 +01002649 if (ret == NULL)
William Lallemandbddd4fd2012-02-27 11:23:10 +01002650 goto out;
William Lallemand1d705562012-03-12 12:46:41 +01002651 tmplog = ret;
William Lallemandbddd4fd2012-02-27 11:23:10 +01002652 last_isspace = 0;
2653 break;
2654
William Lallemand1d705562012-03-12 12:46:41 +01002655 case LOG_FMT_SRVCONN: // %sc
Willy Tarreaue1809df2018-09-05 15:30:16 +02002656 ret = ultoa_o(objt_server(s ? s->target : NULL) ?
Willy Tarreau3fdb3662012-11-12 00:42:33 +01002657 objt_server(s->target)->cur_sess :
William Lallemand5f232402012-04-05 18:02:55 +02002658 0, tmplog, dst + maxsize - tmplog);
William Lallemand1d705562012-03-12 12:46:41 +01002659 if (ret == NULL)
William Lallemandbddd4fd2012-02-27 11:23:10 +01002660 goto out;
William Lallemand1d705562012-03-12 12:46:41 +01002661 tmplog = ret;
William Lallemandbddd4fd2012-02-27 11:23:10 +01002662 last_isspace = 0;
2663 break;
2664
William Lallemand1d705562012-03-12 12:46:41 +01002665 case LOG_FMT_RETRIES: // %rq
Willy Tarreaub8bc5252018-09-05 15:51:28 +02002666 if (s_flags & SF_REDISP)
William Lallemand1d705562012-03-12 12:46:41 +01002667 LOGCHAR('+');
Willy Tarreauabd71a52018-09-04 19:21:44 +02002668 ret = ltoa_o((s && s->si[1].conn_retries > 0) ?
Willy Tarreau350f4872014-11-28 14:42:25 +01002669 (be->conn_retries - s->si[1].conn_retries) :
William Lallemand5f232402012-04-05 18:02:55 +02002670 be->conn_retries, tmplog, dst + maxsize - tmplog);
William Lallemand1d705562012-03-12 12:46:41 +01002671 if (ret == NULL)
William Lallemand51b5dca2012-03-26 17:52:55 +02002672 goto out;
William Lallemand1d705562012-03-12 12:46:41 +01002673 tmplog = ret;
William Lallemandbddd4fd2012-02-27 11:23:10 +01002674 last_isspace = 0;
2675 break;
2676
William Lallemand1d705562012-03-12 12:46:41 +01002677 case LOG_FMT_SRVQUEUE: // %sq
Willy Tarreau372ac5a2018-09-05 15:16:23 +02002678 ret = ltoa_o(logs->srv_queue_pos, tmplog, dst + maxsize - tmplog);
William Lallemand1d705562012-03-12 12:46:41 +01002679 if (ret == NULL)
William Lallemandbddd4fd2012-02-27 11:23:10 +01002680 goto out;
William Lallemand1d705562012-03-12 12:46:41 +01002681 tmplog = ret;
William Lallemandbddd4fd2012-02-27 11:23:10 +01002682 last_isspace = 0;
2683 break;
2684
William Lallemand1d705562012-03-12 12:46:41 +01002685 case LOG_FMT_BCKQUEUE: // %bq
Willy Tarreau372ac5a2018-09-05 15:16:23 +02002686 ret = ltoa_o(logs->prx_queue_pos, tmplog, dst + maxsize - tmplog);
William Lallemand1d705562012-03-12 12:46:41 +01002687 if (ret == NULL)
William Lallemandbddd4fd2012-02-27 11:23:10 +01002688 goto out;
William Lallemand1d705562012-03-12 12:46:41 +01002689 tmplog = ret;
William Lallemandbddd4fd2012-02-27 11:23:10 +01002690 last_isspace = 0;
2691 break;
2692
William Lallemand1d705562012-03-12 12:46:41 +01002693 case LOG_FMT_HDRREQUEST: // %hr
William Lallemandbddd4fd2012-02-27 11:23:10 +01002694 /* request header */
Willy Tarreaud4f91662018-09-05 15:28:07 +02002695 if (fe->nb_req_cap && s && s->req_cap) {
William Lallemandbddd4fd2012-02-27 11:23:10 +01002696 if (tmp->options & LOG_OPT_QUOTE)
2697 LOGCHAR('"');
2698 LOGCHAR('{');
2699 for (hdr = 0; hdr < fe->nb_req_cap; hdr++) {
2700 if (hdr)
2701 LOGCHAR('|');
Willy Tarreaucb7dd012015-04-03 22:16:32 +02002702 if (s->req_cap[hdr] != NULL) {
Dragan Dosen835b9212016-02-12 13:23:03 +01002703 ret = lf_encode_string(tmplog, dst + maxsize,
2704 '#', hdr_encode_map, s->req_cap[hdr], tmp);
William Lallemand1d705562012-03-12 12:46:41 +01002705 if (ret == NULL || *ret != '\0')
William Lallemand51b5dca2012-03-26 17:52:55 +02002706 goto out;
William Lallemand1d705562012-03-12 12:46:41 +01002707 tmplog = ret;
William Lallemand51b5dca2012-03-26 17:52:55 +02002708 }
William Lallemandbddd4fd2012-02-27 11:23:10 +01002709 }
2710 LOGCHAR('}');
William Lallemand51b5dca2012-03-26 17:52:55 +02002711 if (tmp->options & LOG_OPT_QUOTE)
2712 LOGCHAR('"');
William Lallemandbddd4fd2012-02-27 11:23:10 +01002713 last_isspace = 0;
2714 }
William Lallemandbddd4fd2012-02-27 11:23:10 +01002715 break;
2716
William Lallemand1d705562012-03-12 12:46:41 +01002717 case LOG_FMT_HDRREQUESTLIST: // %hrl
William Lallemandbddd4fd2012-02-27 11:23:10 +01002718 /* request header list */
Willy Tarreaud4f91662018-09-05 15:28:07 +02002719 if (fe->nb_req_cap && s && s->req_cap) {
William Lallemandbddd4fd2012-02-27 11:23:10 +01002720 for (hdr = 0; hdr < fe->nb_req_cap; hdr++) {
2721 if (hdr > 0)
2722 LOGCHAR(' ');
2723 if (tmp->options & LOG_OPT_QUOTE)
2724 LOGCHAR('"');
Willy Tarreaucb7dd012015-04-03 22:16:32 +02002725 if (s->req_cap[hdr] != NULL) {
Dragan Dosen835b9212016-02-12 13:23:03 +01002726 ret = lf_encode_string(tmplog, dst + maxsize,
2727 '#', hdr_encode_map, s->req_cap[hdr], tmp);
William Lallemand1d705562012-03-12 12:46:41 +01002728 if (ret == NULL || *ret != '\0')
William Lallemand51b5dca2012-03-26 17:52:55 +02002729 goto out;
William Lallemand1d705562012-03-12 12:46:41 +01002730 tmplog = ret;
William Lallemandbddd4fd2012-02-27 11:23:10 +01002731 } else if (!(tmp->options & LOG_OPT_QUOTE))
2732 LOGCHAR('-');
2733 if (tmp->options & LOG_OPT_QUOTE)
2734 LOGCHAR('"');
William Lallemandbddd4fd2012-02-27 11:23:10 +01002735 last_isspace = 0;
2736 }
2737 }
2738 break;
Willy Tarreaubaaee002006-06-26 02:48:02 +02002739
William Lallemand1d705562012-03-12 12:46:41 +01002740
2741 case LOG_FMT_HDRRESPONS: // %hs
William Lallemandbddd4fd2012-02-27 11:23:10 +01002742 /* response header */
Willy Tarreaud4f91662018-09-05 15:28:07 +02002743 if (fe->nb_rsp_cap && s && s->res_cap) {
William Lallemandbddd4fd2012-02-27 11:23:10 +01002744 if (tmp->options & LOG_OPT_QUOTE)
2745 LOGCHAR('"');
2746 LOGCHAR('{');
2747 for (hdr = 0; hdr < fe->nb_rsp_cap; hdr++) {
2748 if (hdr)
2749 LOGCHAR('|');
Willy Tarreaucb7dd012015-04-03 22:16:32 +02002750 if (s->res_cap[hdr] != NULL) {
Dragan Dosen835b9212016-02-12 13:23:03 +01002751 ret = lf_encode_string(tmplog, dst + maxsize,
2752 '#', hdr_encode_map, s->res_cap[hdr], tmp);
William Lallemand1d705562012-03-12 12:46:41 +01002753 if (ret == NULL || *ret != '\0')
William Lallemand51b5dca2012-03-26 17:52:55 +02002754 goto out;
William Lallemand1d705562012-03-12 12:46:41 +01002755 tmplog = ret;
William Lallemand51b5dca2012-03-26 17:52:55 +02002756 }
William Lallemandbddd4fd2012-02-27 11:23:10 +01002757 }
2758 LOGCHAR('}');
2759 last_isspace = 0;
2760 if (tmp->options & LOG_OPT_QUOTE)
2761 LOGCHAR('"');
2762 }
William Lallemandbddd4fd2012-02-27 11:23:10 +01002763 break;
2764
William Lallemand1d705562012-03-12 12:46:41 +01002765 case LOG_FMT_HDRRESPONSLIST: // %hsl
William Lallemandbddd4fd2012-02-27 11:23:10 +01002766 /* response header list */
Willy Tarreaud4f91662018-09-05 15:28:07 +02002767 if (fe->nb_rsp_cap && s && s->res_cap) {
William Lallemandbddd4fd2012-02-27 11:23:10 +01002768 for (hdr = 0; hdr < fe->nb_rsp_cap; hdr++) {
2769 if (hdr > 0)
2770 LOGCHAR(' ');
2771 if (tmp->options & LOG_OPT_QUOTE)
2772 LOGCHAR('"');
Willy Tarreaucb7dd012015-04-03 22:16:32 +02002773 if (s->res_cap[hdr] != NULL) {
Dragan Dosen835b9212016-02-12 13:23:03 +01002774 ret = lf_encode_string(tmplog, dst + maxsize,
2775 '#', hdr_encode_map, s->res_cap[hdr], tmp);
William Lallemand1d705562012-03-12 12:46:41 +01002776 if (ret == NULL || *ret != '\0')
William Lallemand51b5dca2012-03-26 17:52:55 +02002777 goto out;
William Lallemand1d705562012-03-12 12:46:41 +01002778 tmplog = ret;
William Lallemandbddd4fd2012-02-27 11:23:10 +01002779 } else if (!(tmp->options & LOG_OPT_QUOTE))
2780 LOGCHAR('-');
2781 if (tmp->options & LOG_OPT_QUOTE)
2782 LOGCHAR('"');
William Lallemandbddd4fd2012-02-27 11:23:10 +01002783 last_isspace = 0;
2784 }
2785 }
2786 break;
2787
William Lallemand1d705562012-03-12 12:46:41 +01002788 case LOG_FMT_REQ: // %r
William Lallemandbddd4fd2012-02-27 11:23:10 +01002789 /* Request */
2790 if (tmp->options & LOG_OPT_QUOTE)
2791 LOGCHAR('"');
Willy Tarreau57bc8912016-04-25 17:09:40 +02002792 uri = txn && txn->uri ? txn->uri : "<BADREQ>";
Dragan Dosen835b9212016-02-12 13:23:03 +01002793 ret = lf_encode_string(tmplog, dst + maxsize,
2794 '#', url_encode_map, uri, tmp);
William Lallemand1d705562012-03-12 12:46:41 +01002795 if (ret == NULL || *ret != '\0')
William Lallemand51b5dca2012-03-26 17:52:55 +02002796 goto out;
William Lallemand1d705562012-03-12 12:46:41 +01002797 tmplog = ret;
William Lallemandbddd4fd2012-02-27 11:23:10 +01002798 if (tmp->options & LOG_OPT_QUOTE)
2799 LOGCHAR('"');
William Lallemandbddd4fd2012-02-27 11:23:10 +01002800 last_isspace = 0;
2801 break;
William Lallemand5f232402012-04-05 18:02:55 +02002802
Andrew Hayworth0ebc55f2015-04-27 21:37:03 +00002803 case LOG_FMT_HTTP_PATH: // %HP
Willy Tarreau57bc8912016-04-25 17:09:40 +02002804 uri = txn && txn->uri ? txn->uri : "<BADREQ>";
Andrew Hayworth0ebc55f2015-04-27 21:37:03 +00002805
Willy Tarreaub7636d12015-06-17 19:58:02 +02002806 if (tmp->options & LOG_OPT_QUOTE)
Andrew Hayworth0ebc55f2015-04-27 21:37:03 +00002807 LOGCHAR('"');
2808
2809 end = uri + strlen(uri);
2810 // look for the first whitespace character
2811 while (uri < end && !HTTP_IS_SPHT(*uri))
2812 uri++;
2813
2814 // keep advancing past multiple spaces
2815 while (uri < end && HTTP_IS_SPHT(*uri)) {
2816 uri++; nspaces++;
2817 }
2818
2819 // look for first space or question mark after url
2820 spc = uri;
2821 while (spc < end && *spc != '?' && !HTTP_IS_SPHT(*spc))
2822 spc++;
2823
Nenad Merdanovic54e439f2016-04-26 01:39:02 +02002824 if (!txn || !txn->uri || nspaces == 0) {
Willy Tarreau843b7cb2018-07-13 10:54:26 +02002825 chunk.area = "<BADREQ>";
2826 chunk.data = strlen("<BADREQ>");
Andrew Hayworth0ebc55f2015-04-27 21:37:03 +00002827 } else {
Willy Tarreau843b7cb2018-07-13 10:54:26 +02002828 chunk.area = uri;
2829 chunk.data = spc - uri;
Andrew Hayworth0ebc55f2015-04-27 21:37:03 +00002830 }
2831
Dragan Dosen835b9212016-02-12 13:23:03 +01002832 ret = lf_encode_chunk(tmplog, dst + maxsize, '#', url_encode_map, &chunk, tmp);
Andrew Hayworth0ebc55f2015-04-27 21:37:03 +00002833 if (ret == NULL || *ret != '\0')
2834 goto out;
2835
2836 tmplog = ret;
Willy Tarreaub7636d12015-06-17 19:58:02 +02002837 if (tmp->options & LOG_OPT_QUOTE)
Andrew Hayworth0ebc55f2015-04-27 21:37:03 +00002838 LOGCHAR('"');
2839
2840 last_isspace = 0;
2841 break;
2842
Andrew Hayworthe63ac872015-07-31 16:14:16 +00002843 case LOG_FMT_HTTP_QUERY: // %HQ
2844 if (tmp->options & LOG_OPT_QUOTE)
2845 LOGCHAR('"');
2846
Willy Tarreau57bc8912016-04-25 17:09:40 +02002847 if (!txn || !txn->uri) {
Willy Tarreau843b7cb2018-07-13 10:54:26 +02002848 chunk.area = "<BADREQ>";
2849 chunk.data = strlen("<BADREQ>");
Andrew Hayworthe63ac872015-07-31 16:14:16 +00002850 } else {
2851 uri = txn->uri;
2852 end = uri + strlen(uri);
2853 // look for the first question mark
2854 while (uri < end && *uri != '?')
2855 uri++;
2856
2857 qmark = uri;
2858 // look for first space or question mark after url
2859 while (uri < end && !HTTP_IS_SPHT(*uri))
2860 uri++;
2861
Willy Tarreau843b7cb2018-07-13 10:54:26 +02002862 chunk.area = qmark;
2863 chunk.data = uri - qmark;
Andrew Hayworthe63ac872015-07-31 16:14:16 +00002864 }
2865
Dragan Dosen835b9212016-02-12 13:23:03 +01002866 ret = lf_encode_chunk(tmplog, dst + maxsize, '#', url_encode_map, &chunk, tmp);
Andrew Hayworthe63ac872015-07-31 16:14:16 +00002867 if (ret == NULL || *ret != '\0')
2868 goto out;
2869
2870 tmplog = ret;
2871 if (tmp->options & LOG_OPT_QUOTE)
2872 LOGCHAR('"');
2873
2874 last_isspace = 0;
2875 break;
2876
Andrew Hayworth0ebc55f2015-04-27 21:37:03 +00002877 case LOG_FMT_HTTP_URI: // %HU
Willy Tarreau57bc8912016-04-25 17:09:40 +02002878 uri = txn && txn->uri ? txn->uri : "<BADREQ>";
Andrew Hayworth0ebc55f2015-04-27 21:37:03 +00002879
Willy Tarreaub7636d12015-06-17 19:58:02 +02002880 if (tmp->options & LOG_OPT_QUOTE)
Andrew Hayworth0ebc55f2015-04-27 21:37:03 +00002881 LOGCHAR('"');
2882
2883 end = uri + strlen(uri);
2884 // look for the first whitespace character
2885 while (uri < end && !HTTP_IS_SPHT(*uri))
2886 uri++;
2887
2888 // keep advancing past multiple spaces
2889 while (uri < end && HTTP_IS_SPHT(*uri)) {
2890 uri++; nspaces++;
2891 }
2892
2893 // look for first space after url
2894 spc = uri;
2895 while (spc < end && !HTTP_IS_SPHT(*spc))
2896 spc++;
2897
Willy Tarreau57bc8912016-04-25 17:09:40 +02002898 if (!txn || !txn->uri || nspaces == 0) {
Willy Tarreau843b7cb2018-07-13 10:54:26 +02002899 chunk.area = "<BADREQ>";
2900 chunk.data = strlen("<BADREQ>");
Andrew Hayworth0ebc55f2015-04-27 21:37:03 +00002901 } else {
Willy Tarreau843b7cb2018-07-13 10:54:26 +02002902 chunk.area = uri;
2903 chunk.data = spc - uri;
Andrew Hayworth0ebc55f2015-04-27 21:37:03 +00002904 }
2905
Dragan Dosen835b9212016-02-12 13:23:03 +01002906 ret = lf_encode_chunk(tmplog, dst + maxsize, '#', url_encode_map, &chunk, tmp);
Andrew Hayworth0ebc55f2015-04-27 21:37:03 +00002907 if (ret == NULL || *ret != '\0')
2908 goto out;
2909
2910 tmplog = ret;
Willy Tarreaub7636d12015-06-17 19:58:02 +02002911 if (tmp->options & LOG_OPT_QUOTE)
Andrew Hayworth0ebc55f2015-04-27 21:37:03 +00002912 LOGCHAR('"');
2913
2914 last_isspace = 0;
2915 break;
2916
2917 case LOG_FMT_HTTP_METHOD: // %HM
Willy Tarreau57bc8912016-04-25 17:09:40 +02002918 uri = txn && txn->uri ? txn->uri : "<BADREQ>";
Willy Tarreaub7636d12015-06-17 19:58:02 +02002919 if (tmp->options & LOG_OPT_QUOTE)
Andrew Hayworth0ebc55f2015-04-27 21:37:03 +00002920 LOGCHAR('"');
2921
2922 end = uri + strlen(uri);
2923 // look for the first whitespace character
2924 spc = uri;
2925 while (spc < end && !HTTP_IS_SPHT(*spc))
2926 spc++;
2927
2928 if (spc == end) { // odd case, we have txn->uri, but we only got a verb
Willy Tarreau843b7cb2018-07-13 10:54:26 +02002929 chunk.area = "<BADREQ>";
2930 chunk.data = strlen("<BADREQ>");
Andrew Hayworth0ebc55f2015-04-27 21:37:03 +00002931 } else {
Willy Tarreau843b7cb2018-07-13 10:54:26 +02002932 chunk.area = uri;
2933 chunk.data = spc - uri;
Andrew Hayworth0ebc55f2015-04-27 21:37:03 +00002934 }
2935
Dragan Dosen835b9212016-02-12 13:23:03 +01002936 ret = lf_encode_chunk(tmplog, dst + maxsize, '#', url_encode_map, &chunk, tmp);
Andrew Hayworth0ebc55f2015-04-27 21:37:03 +00002937 if (ret == NULL || *ret != '\0')
2938 goto out;
2939
2940 tmplog = ret;
Willy Tarreaub7636d12015-06-17 19:58:02 +02002941 if (tmp->options & LOG_OPT_QUOTE)
Andrew Hayworth0ebc55f2015-04-27 21:37:03 +00002942 LOGCHAR('"');
2943
2944 last_isspace = 0;
2945 break;
2946
2947 case LOG_FMT_HTTP_VERSION: // %HV
Willy Tarreau57bc8912016-04-25 17:09:40 +02002948 uri = txn && txn->uri ? txn->uri : "<BADREQ>";
Willy Tarreaub7636d12015-06-17 19:58:02 +02002949 if (tmp->options & LOG_OPT_QUOTE)
Andrew Hayworth0ebc55f2015-04-27 21:37:03 +00002950 LOGCHAR('"');
2951
2952 end = uri + strlen(uri);
2953 // look for the first whitespace character
2954 while (uri < end && !HTTP_IS_SPHT(*uri))
2955 uri++;
2956
2957 // keep advancing past multiple spaces
2958 while (uri < end && HTTP_IS_SPHT(*uri)) {
2959 uri++; nspaces++;
2960 }
2961
2962 // look for the next whitespace character
2963 while (uri < end && !HTTP_IS_SPHT(*uri))
2964 uri++;
2965
2966 // keep advancing past multiple spaces
2967 while (uri < end && HTTP_IS_SPHT(*uri))
2968 uri++;
2969
Willy Tarreau57bc8912016-04-25 17:09:40 +02002970 if (!txn || !txn->uri || nspaces == 0) {
Willy Tarreau843b7cb2018-07-13 10:54:26 +02002971 chunk.area = "<BADREQ>";
2972 chunk.data = strlen("<BADREQ>");
Andrew Hayworth0ebc55f2015-04-27 21:37:03 +00002973 } else if (uri == end) {
Willy Tarreau843b7cb2018-07-13 10:54:26 +02002974 chunk.area = "HTTP/0.9";
2975 chunk.data = strlen("HTTP/0.9");
Andrew Hayworth0ebc55f2015-04-27 21:37:03 +00002976 } else {
Willy Tarreau843b7cb2018-07-13 10:54:26 +02002977 chunk.area = uri;
2978 chunk.data = end - uri;
Andrew Hayworth0ebc55f2015-04-27 21:37:03 +00002979 }
2980
Dragan Dosen835b9212016-02-12 13:23:03 +01002981 ret = lf_encode_chunk(tmplog, dst + maxsize, '#', url_encode_map, &chunk, tmp);
Andrew Hayworth0ebc55f2015-04-27 21:37:03 +00002982 if (ret == NULL || *ret != '\0')
2983 goto out;
2984
2985 tmplog = ret;
Willy Tarreaub7636d12015-06-17 19:58:02 +02002986 if (tmp->options & LOG_OPT_QUOTE)
Andrew Hayworth0ebc55f2015-04-27 21:37:03 +00002987 LOGCHAR('"');
2988
2989 last_isspace = 0;
2990 break;
2991
William Lallemand5f232402012-04-05 18:02:55 +02002992 case LOG_FMT_COUNTER: // %rt
2993 if (tmp->options & LOG_OPT_HEXA) {
Willy Tarreau5cacab62018-09-05 15:52:59 +02002994 iret = snprintf(tmplog, dst + maxsize - tmplog, "%04X", uniq_id);
William Lallemand5f232402012-04-05 18:02:55 +02002995 if (iret < 0 || iret > dst + maxsize - tmplog)
2996 goto out;
2997 last_isspace = 0;
2998 tmplog += iret;
2999 } else {
Willy Tarreau5cacab62018-09-05 15:52:59 +02003000 ret = ltoa_o(uniq_id, tmplog, dst + maxsize - tmplog);
William Lallemand5f232402012-04-05 18:02:55 +02003001 if (ret == NULL)
3002 goto out;
3003 tmplog = ret;
3004 last_isspace = 0;
3005 }
3006 break;
3007
Willy Tarreau7346acb2014-08-28 15:03:15 +02003008 case LOG_FMT_LOGCNT: // %lc
3009 if (tmp->options & LOG_OPT_HEXA) {
Willy Tarreaue36cbcb2015-04-03 15:40:56 +02003010 iret = snprintf(tmplog, dst + maxsize - tmplog, "%04X", fe->log_count);
Willy Tarreau7346acb2014-08-28 15:03:15 +02003011 if (iret < 0 || iret > dst + maxsize - tmplog)
3012 goto out;
3013 last_isspace = 0;
3014 tmplog += iret;
3015 } else {
Willy Tarreaue36cbcb2015-04-03 15:40:56 +02003016 ret = ultoa_o(fe->log_count, tmplog, dst + maxsize - tmplog);
Willy Tarreau7346acb2014-08-28 15:03:15 +02003017 if (ret == NULL)
3018 goto out;
3019 tmplog = ret;
3020 last_isspace = 0;
3021 }
3022 break;
3023
William Lallemand5f232402012-04-05 18:02:55 +02003024 case LOG_FMT_HOSTNAME: // %H
3025 src = hostname;
3026 ret = lf_text(tmplog, src, dst + maxsize - tmplog, tmp);
3027 if (ret == NULL)
3028 goto out;
3029 tmplog = ret;
3030 last_isspace = 0;
3031 break;
3032
3033 case LOG_FMT_PID: // %pid
3034 if (tmp->options & LOG_OPT_HEXA) {
3035 iret = snprintf(tmplog, dst + maxsize - tmplog, "%04X", pid);
3036 if (iret < 0 || iret > dst + maxsize - tmplog)
3037 goto out;
3038 last_isspace = 0;
3039 tmplog += iret;
3040 } else {
3041 ret = ltoa_o(pid, tmplog, dst + maxsize - tmplog);
3042 if (ret == NULL)
3043 goto out;
3044 tmplog = ret;
3045 last_isspace = 0;
3046 }
3047 break;
William Lallemanda73203e2012-03-12 12:48:57 +01003048
3049 case LOG_FMT_UNIQUEID: // %ID
William Lallemand5b7ea3a2013-08-28 15:44:19 +02003050 ret = NULL;
Tim Duesterhusa17e6622020-03-05 20:19:02 +01003051 if (s)
3052 ret = lf_text_len(tmplog, s->unique_id.ptr, s->unique_id.len, maxsize - (tmplog - dst), tmp);
3053 else
3054 ret = lf_text_len(tmplog, NULL, 0, maxsize - (tmplog - dst), tmp);
William Lallemanda73203e2012-03-12 12:48:57 +01003055 if (ret == NULL)
3056 goto out;
3057 tmplog = ret;
3058 last_isspace = 0;
3059 break;
3060
William Lallemandbddd4fd2012-02-27 11:23:10 +01003061 }
3062 }
3063
3064out:
William Lallemand1d705562012-03-12 12:46:41 +01003065 /* *tmplog is a unused character */
3066 *tmplog = '\0';
Willy Tarreaudf974472012-12-28 02:44:01 +01003067 return tmplog - dst;
William Lallemandbddd4fd2012-02-27 11:23:10 +01003068
Willy Tarreaubaaee002006-06-26 02:48:02 +02003069}
3070
William Lallemand1d705562012-03-12 12:46:41 +01003071/*
Willy Tarreau87b09662015-04-03 00:22:06 +02003072 * send a log for the stream when we have enough info about it.
William Lallemand1d705562012-03-12 12:46:41 +01003073 * Will not log if the frontend has no log defined.
3074 */
Willy Tarreau87b09662015-04-03 00:22:06 +02003075void strm_log(struct stream *s)
William Lallemand1d705562012-03-12 12:46:41 +01003076{
Willy Tarreaue36cbcb2015-04-03 15:40:56 +02003077 struct session *sess = s->sess;
William Lallemand1d705562012-03-12 12:46:41 +01003078 int size, err, level;
Dragan Dosen0b85ece2015-09-25 19:17:44 +02003079 int sd_size = 0;
William Lallemand1d705562012-03-12 12:46:41 +01003080
3081 /* if we don't want to log normal traffic, return now */
Willy Tarreaue7dff022015-04-03 01:14:29 +02003082 err = (s->flags & SF_REDISP) ||
3083 ((s->flags & SF_ERR_MASK) > SF_ERR_LOCAL) ||
3084 (((s->flags & SF_ERR_MASK) == SF_ERR_NONE) &&
Willy Tarreau350f4872014-11-28 14:42:25 +01003085 (s->si[1].conn_retries != s->be->conn_retries)) ||
Willy Tarreaueee5b512015-04-03 23:46:31 +02003086 ((sess->fe->mode == PR_MODE_HTTP) && s->txn && s->txn->status >= 500);
Willy Tarreaubaaee002006-06-26 02:48:02 +02003087
Willy Tarreaue36cbcb2015-04-03 15:40:56 +02003088 if (!err && (sess->fe->options2 & PR_O2_NOLOGNORM))
William Lallemand1d705562012-03-12 12:46:41 +01003089 return;
William Lallemandbddd4fd2012-02-27 11:23:10 +01003090
Willy Tarreaue36cbcb2015-04-03 15:40:56 +02003091 if (LIST_ISEMPTY(&sess->fe->logsrvs))
William Lallemand1d705562012-03-12 12:46:41 +01003092 return;
William Lallemandbddd4fd2012-02-27 11:23:10 +01003093
Willy Tarreauabcd5142013-06-11 17:18:02 +02003094 if (s->logs.level) { /* loglevel was overridden */
3095 if (s->logs.level == -1) {
3096 s->logs.logwait = 0; /* logs disabled */
3097 return;
3098 }
3099 level = s->logs.level - 1;
3100 }
3101 else {
3102 level = LOG_INFO;
Willy Tarreaue36cbcb2015-04-03 15:40:56 +02003103 if (err && (sess->fe->options2 & PR_O2_LOGERRORS))
Willy Tarreauabcd5142013-06-11 17:18:02 +02003104 level = LOG_ERR;
3105 }
William Lallemand1d705562012-03-12 12:46:41 +01003106
William Lallemand5b7ea3a2013-08-28 15:44:19 +02003107 /* if unique-id was not generated */
Tim Duesterhusa17e6622020-03-05 20:19:02 +01003108 if (!isttest(s->unique_id) && !LIST_ISEMPTY(&sess->fe->format_unique_id)) {
Tim Duesterhus2825b4b2020-02-28 15:13:34 +01003109 stream_generate_unique_id(s, &sess->fe->format_unique_id);
William Lallemand5b7ea3a2013-08-28 15:44:19 +02003110 }
3111
Dragan Dosen0b85ece2015-09-25 19:17:44 +02003112 if (!LIST_ISEMPTY(&sess->fe->logformat_sd)) {
3113 sd_size = build_logline(s, logline_rfc5424, global.max_syslog_len,
3114 &sess->fe->logformat_sd);
3115 }
3116
Dragan Dosen59cee972015-09-19 22:09:02 +02003117 size = build_logline(s, logline, global.max_syslog_len, &sess->fe->logformat);
William Lallemand1d705562012-03-12 12:46:41 +01003118 if (size > 0) {
Olivier Houchardd2ee3e72019-03-08 18:53:21 +01003119 _HA_ATOMIC_ADD(&sess->fe->log_count, 1);
Christopher Faulet5c6fefc2019-08-11 19:40:12 +02003120 __send_log(&sess->fe->logsrvs, &sess->fe->log_tag, level,
3121 logline, size + 1, logline_rfc5424, sd_size);
William Lallemand1d705562012-03-12 12:46:41 +01003122 s->logs.logwait = 0;
3123 }
3124}
William Lallemandbddd4fd2012-02-27 11:23:10 +01003125
Willy Tarreau53839352018-09-05 19:51:10 +02003126/*
3127 * send a minimalist log for the session. Will not log if the frontend has no
3128 * log defined. It is assumed that this is only used to report anomalies that
3129 * cannot lead to the creation of a regular stream. Because of this the log
3130 * level is LOG_INFO or LOG_ERR depending on the "log-separate-error" setting
3131 * in the frontend. The caller must simply know that it should not call this
Willy Tarreau9fa267d2018-10-05 10:22:27 +02003132 * function to report unimportant events. It is safe to call this function with
3133 * sess==NULL (will not do anything).
Willy Tarreau53839352018-09-05 19:51:10 +02003134 */
3135void sess_log(struct session *sess)
3136{
3137 int size, level;
3138 int sd_size = 0;
3139
Willy Tarreau9fa267d2018-10-05 10:22:27 +02003140 if (!sess)
3141 return;
3142
Willy Tarreau53839352018-09-05 19:51:10 +02003143 if (LIST_ISEMPTY(&sess->fe->logsrvs))
3144 return;
3145
3146 level = LOG_INFO;
3147 if (sess->fe->options2 & PR_O2_LOGERRORS)
3148 level = LOG_ERR;
3149
3150 if (!LIST_ISEMPTY(&sess->fe->logformat_sd)) {
3151 sd_size = sess_build_logline(sess, NULL,
3152 logline_rfc5424, global.max_syslog_len,
3153 &sess->fe->logformat_sd);
3154 }
3155
3156 size = sess_build_logline(sess, NULL, logline, global.max_syslog_len, &sess->fe->logformat);
3157 if (size > 0) {
Olivier Houchardd2ee3e72019-03-08 18:53:21 +01003158 _HA_ATOMIC_ADD(&sess->fe->log_count, 1);
Christopher Faulet5c6fefc2019-08-11 19:40:12 +02003159 __send_log(&sess->fe->logsrvs, &sess->fe->log_tag, level,
3160 logline, size + 1, logline_rfc5424, sd_size);
Willy Tarreau53839352018-09-05 19:51:10 +02003161 }
3162}
3163
Christopher Faulet5c6fefc2019-08-11 19:40:12 +02003164void app_log(struct list *logsrvs, struct buffer *tag, int level, const char *format, ...)
3165{
3166 va_list argp;
3167 int data_len;
3168
3169 if (level < 0 || format == NULL || logline == NULL)
3170 return;
3171
3172 va_start(argp, format);
3173 data_len = vsnprintf(logline, global.max_syslog_len, format, argp);
3174 if (data_len < 0 || data_len > global.max_syslog_len)
3175 data_len = global.max_syslog_len;
3176 va_end(argp);
3177
3178 __send_log(logsrvs, tag, level, logline, data_len, default_rfc5424_sd_log_format, 2);
3179}
Emeric Brun54932b42020-07-07 09:43:24 +02003180/*
3181 * This function parse a received log message <buf>, of size <buflen>
3182 * it fills <level>, <facility> and <metadata> depending of the detected
3183 * header format and message will point on remaining payload of <size>
3184 *
3185 * <metadata> must point on a preallocated array of LOG_META_FIELDS*sizeof(struct ist)
3186 * struct ist len will be set to 0 if field is not found
3187 * <level> and <facility> will be set to -1 if not found.
3188 */
3189void parse_log_message(char *buf, size_t buflen, int *level, int *facility,
3190 struct ist *metadata, char **message, size_t *size)
3191{
3192
3193 char *p;
3194 int fac_level = 0;
3195
3196 *level = *facility = -1;
3197
3198 *message = buf;
3199 *size = buflen;
3200
3201 memset(metadata, 0, LOG_META_FIELDS*sizeof(struct ist));
3202
3203 p = buf;
3204 if (*size < 2 || *p != '<')
3205 return;
3206
3207 p++;
3208 while (*p != '>') {
3209 if (*p > '9' || *p < '0')
3210 return;
3211 fac_level = 10*fac_level + (*p - '0');
3212 p++;
3213 if ((p - buf) > buflen)
3214 return;
3215 }
3216
3217 *facility = fac_level >> 3;
3218 *level = fac_level & 0x7;
3219 p++;
3220
3221 metadata[LOG_META_PRIO] = ist2(buf, p - buf);
3222
3223 buflen -= p - buf;
3224 buf = p;
3225
3226 *size = buflen;
3227 *message = buf;
3228
3229 /* for rfc5424, prio is always followed by '1' and ' ' */
3230 if ((*size > 2) && (p[0] == '1') && (p[1] == ' ')) {
3231 /* format is always '1 TIMESTAMP HOSTNAME TAG PID MSGID STDATA '
3232 * followed by message.
3233 * Each header field can present NILVALUE: '-'
3234 */
3235
3236 p += 2;
3237 /* timestamp is NILVALUE '-' */
3238 if (*size > 2 && (p[0] == '-') && p[1] == ' ') {
3239 metadata[LOG_META_TIME] = ist2(p, 1);
3240 p++;
3241 }
3242 else if (*size > LOG_ISOTIME_MINLEN) {
3243 metadata[LOG_META_TIME].ptr = p;
3244
Ilya Shipitsin6b79f382020-07-23 00:32:55 +05003245 /* check if optional secfrac is present
Emeric Brun54932b42020-07-07 09:43:24 +02003246 * in timestamp.
3247 * possible format are:
3248 * ex: '1970-01-01T00:00:00.000000Z'
3249 * '1970-01-01T00:00:00.000000+00:00'
3250 * '1970-01-01T00:00:00.000000-00:00'
3251 * '1970-01-01T00:00:00Z'
3252 * '1970-01-01T00:00:00+00:00'
3253 * '1970-01-01T00:00:00-00:00'
3254 */
3255 p += 19;
3256 if (*p == '.') {
3257 p++;
3258 if ((p - buf) >= buflen)
3259 goto bad_format;
3260 while (*p != 'Z' && *p != '+' && *p != '-') {
3261 if ((unsigned char)(*p - '0') > 9)
3262 goto bad_format;
3263
3264 p++;
3265 if ((p - buf) >= buflen)
3266 goto bad_format;
3267 }
3268 }
3269
3270 if (*p == 'Z')
3271 p++;
3272 else
3273 p += 6; /* case of '+00:00 or '-00:00' */
3274
3275 if ((p - buf) >= buflen || *p != ' ')
3276 goto bad_format;
3277 metadata[LOG_META_TIME].len = p - metadata[LOG_META_TIME].ptr;
3278 }
3279 else
3280 goto bad_format;
3281
3282
3283 p++;
3284 if ((p - buf) >= buflen || *p == ' ')
3285 goto bad_format;
3286
3287 metadata[LOG_META_HOST].ptr = p;
3288 while (*p != ' ') {
3289 p++;
3290 if ((p - buf) >= buflen)
3291 goto bad_format;
3292 }
3293 metadata[LOG_META_HOST].len = p - metadata[LOG_META_HOST].ptr;
3294 if (metadata[LOG_META_HOST].len == 1 && metadata[LOG_META_HOST].ptr[0] == '-')
3295 metadata[LOG_META_HOST].len = 0;
3296
3297 p++;
3298 if ((p - buf) >= buflen || *p == ' ')
3299 goto bad_format;
3300
3301 metadata[LOG_META_TAG].ptr = p;
3302 while (*p != ' ') {
3303 p++;
3304 if ((p - buf) >= buflen)
3305 goto bad_format;
3306 }
3307 metadata[LOG_META_TAG].len = p - metadata[LOG_META_TAG].ptr;
3308 if (metadata[LOG_META_TAG].len == 1 && metadata[LOG_META_TAG].ptr[0] == '-')
3309 metadata[LOG_META_TAG].len = 0;
3310
3311 p++;
3312 if ((p - buf) >= buflen || *p == ' ')
3313 goto bad_format;
3314
3315 metadata[LOG_META_PID].ptr = p;
3316 while (*p != ' ') {
3317 p++;
3318 if ((p - buf) >= buflen)
3319 goto bad_format;
3320 }
3321 metadata[LOG_META_PID].len = p - metadata[LOG_META_PID].ptr;
3322 if (metadata[LOG_META_PID].len == 1 && metadata[LOG_META_PID].ptr[0] == '-')
3323 metadata[LOG_META_PID].len = 0;
3324
3325 p++;
3326 if ((p - buf) >= buflen || *p == ' ')
3327 goto bad_format;
3328
3329 metadata[LOG_META_MSGID].ptr = p;
3330 while (*p != ' ') {
3331 p++;
3332 if ((p - buf) >= buflen)
3333 goto bad_format;
3334 }
3335 metadata[LOG_META_MSGID].len = p - metadata[LOG_META_MSGID].ptr;
3336 if (metadata[LOG_META_MSGID].len == 1 && metadata[LOG_META_MSGID].ptr[0] == '-')
3337 metadata[LOG_META_MSGID].len = 0;
3338
3339 p++;
3340 if ((p - buf) >= buflen || *p == ' ')
3341 goto bad_format;
3342
3343 /* structured data format is:
3344 * ex:
3345 * '[key1=value1 key2=value2][key3=value3]'
3346 *
3347 * space is invalid outside [] because
3348 * considered as the end of structured data field
3349 */
3350 metadata[LOG_META_STDATA].ptr = p;
3351 if (*p == '[') {
3352 int elem = 0;
3353
3354 while (1) {
3355 if (elem) {
3356 /* according to rfc this char is escaped in param values */
3357 if (*p == ']' && *(p-1) != '\\')
3358 elem = 0;
3359 }
3360 else {
3361 if (*p == '[')
3362 elem = 1;
3363 else if (*p == ' ')
3364 break;
3365 else
3366 goto bad_format;
3367 }
3368 p++;
3369 if ((p - buf) >= buflen)
3370 goto bad_format;
3371 }
3372 }
3373 else if (*p == '-') {
3374 /* case of NILVALUE */
3375 p++;
3376 if ((p - buf) >= buflen || *p != ' ')
3377 goto bad_format;
3378 }
3379 else
3380 goto bad_format;
3381
3382 metadata[LOG_META_STDATA].len = p - metadata[LOG_META_STDATA].ptr;
3383 if (metadata[LOG_META_STDATA].len == 1 && metadata[LOG_META_STDATA].ptr[0] == '-')
3384 metadata[LOG_META_STDATA].len = 0;
3385
3386 p++;
3387
3388 buflen -= p - buf;
3389 buf = p;
3390
3391 *size = buflen;
3392 *message = p;
3393 }
3394 else if (*size > LOG_LEGACYTIME_LEN) {
3395 int m;
3396
3397 /* supported header format according to rfc3164.
3398 * ex:
3399 * 'Jan 1 00:00:00 HOSTNAME TAG[PID]: '
3400 * or 'Jan 1 00:00:00 HOSTNAME TAG: '
3401 * or 'Jan 1 00:00:00 HOSTNAME '
3402 * Note: HOSTNAME is mandatory, and day
3403 * of month uses a single space prefix if
3404 * less than 10 to ensure hour offset is
3405 * always the same.
3406 */
3407
3408 /* Check month to see if it correspond to a rfc3164
3409 * header ex 'Jan 1 00:00:00' */
3410 for (m = 0; m < 12; m++)
3411 if (!memcmp(monthname[m], p, 3))
3412 break;
3413 /* Month not found */
3414 if (m == 12)
3415 goto bad_format;
3416
3417 metadata[LOG_META_TIME] = ist2(p, LOG_LEGACYTIME_LEN);
3418
3419 p += LOG_LEGACYTIME_LEN;
3420 if ((p - buf) >= buflen || *p != ' ')
3421 goto bad_format;
3422
3423 p++;
3424 if ((p - buf) >= buflen || *p == ' ')
3425 goto bad_format;
3426
3427 metadata[LOG_META_HOST].ptr = p;
3428 while (*p != ' ') {
3429 p++;
3430 if ((p - buf) >= buflen)
3431 goto bad_format;
3432 }
3433 metadata[LOG_META_HOST].len = p - metadata[LOG_META_HOST].ptr;
3434
3435 /* TAG seems to no be mandatory */
3436 p++;
3437
3438 buflen -= p - buf;
3439 buf = p;
3440
3441 *size = buflen;
3442 *message = buf;
3443
3444 if (!buflen)
3445 return;
3446
3447 while (((p - buf) < buflen) && *p != ' ' && *p != ':')
3448 p++;
3449
3450 /* a tag must present a trailing ':' */
3451 if (((p - buf) >= buflen) || *p != ':')
3452 return;
3453 p++;
3454 /* followed by a space */
3455 if (((p - buf) >= buflen) || *p != ' ')
3456 return;
3457
3458 /* rewind to parse tag and pid */
3459 p = buf;
3460 metadata[LOG_META_TAG].ptr = p;
3461 /* we have the guarantee that ':' will be reach before size limit */
3462 while (*p != ':') {
3463 if (*p == '[') {
3464 metadata[LOG_META_TAG].len = p - metadata[LOG_META_TAG].ptr;
3465 metadata[LOG_META_PID].ptr = p + 1;
3466 }
3467 else if (*p == ']' && metadata[LOG_META_PID].ptr) {
3468 if (p[1] != ':')
3469 return;
3470 metadata[LOG_META_PID].len = p - metadata[LOG_META_PID].ptr;
3471 }
3472 p++;
3473 }
3474 if (!metadata[LOG_META_TAG].len)
3475 metadata[LOG_META_TAG].len = p - metadata[LOG_META_TAG].ptr;
3476
Ilya Shipitsin6b79f382020-07-23 00:32:55 +05003477 /* let pass ':' and ' ', we still have warranty size is large enough */
Emeric Brun54932b42020-07-07 09:43:24 +02003478 p += 2;
3479
3480 buflen -= p - buf;
3481 buf = p;
3482
3483 *size = buflen;
3484 *message = buf;
3485 }
3486
3487 return;
3488
3489bad_format:
3490 /* bad syslog format, we reset all parsed syslog fields
3491 * but priority is kept because we are able to re-build
3492 * this message using LOF_FORMAT_PRIO.
3493 */
3494 metadata[LOG_META_TIME].len = 0;
3495 metadata[LOG_META_HOST].len = 0;
3496 metadata[LOG_META_TAG].len = 0;
3497 metadata[LOG_META_PID].len = 0;
3498 metadata[LOG_META_MSGID].len = 0;
3499 metadata[LOG_META_STDATA].len = 0;
3500
3501 return;
3502}
3503
3504/*
3505 * UDP syslog fd handler
3506 */
3507void syslog_fd_handler(int fd)
3508{
3509 static THREAD_LOCAL struct ist metadata[LOG_META_FIELDS];
3510 ssize_t ret = 0;
3511 struct buffer *buf = get_trash_chunk();
3512 size_t size;
3513 char *message;
3514 int level;
3515 int facility;
3516 struct listener *l = objt_listener(fdtab[fd].owner);
3517 int max_accept;
3518
3519 if(!l)
3520 ABORT_NOW();
3521
3522 if (fdtab[fd].ev & FD_POLL_IN) {
3523
3524 if (!fd_recv_ready(fd))
3525 return;
3526
3527 max_accept = l->maxaccept ? l->maxaccept : 1;
3528
3529 do {
3530 /* Source address */
3531 struct sockaddr_storage saddr = {0};
3532 socklen_t saddrlen;
3533
3534 saddrlen = sizeof(saddr);
3535
3536 ret = recvfrom(fd, buf->area, buf->size, 0, (struct sockaddr *)&saddr, &saddrlen);
3537 if (ret < 0) {
3538 if (errno == EINTR)
3539 continue;
3540 if (errno == EAGAIN)
3541 fd_cant_recv(fd);
3542 goto out;
3543 }
3544 buf->data = ret;
3545
Emeric Brun45c457a2020-07-09 23:23:34 +02003546 /* update counters */
3547 _HA_ATOMIC_ADD(&cum_log_messages, 1);
Emeric Bruna39ecbd2020-10-05 14:33:12 +02003548 proxy_inc_fe_req_ctr(l, l->bind_conf->frontend);
Emeric Brun45c457a2020-07-09 23:23:34 +02003549
Emeric Brun54932b42020-07-07 09:43:24 +02003550 parse_log_message(buf->area, buf->data, &level, &facility, metadata, &message, &size);
3551
3552 process_send_log(&l->bind_conf->frontend->logsrvs, level, facility, metadata, message, size);
3553
3554 } while (--max_accept);
3555 }
3556
3557out:
3558 return;
3559}
Christopher Faulet5c6fefc2019-08-11 19:40:12 +02003560
Emeric Brun12941c82020-07-07 14:19:42 +02003561/*
Emeric Bruncbb7bf72020-10-05 14:39:35 +02003562 * IO Handler to handle message exchange with a syslog tcp client
3563 */
3564static void syslog_io_handler(struct appctx *appctx)
3565{
3566 static THREAD_LOCAL struct ist metadata[LOG_META_FIELDS];
3567 struct stream_interface *si = appctx->owner;
3568 struct stream *s = si_strm(si);
3569 struct proxy *frontend = strm_fe(s);
3570 struct listener *l = strm_li(s);
3571 struct buffer *buf = get_trash_chunk();
3572 int max_accept;
3573 int to_skip;
3574 int facility;
3575 int level;
3576 char *message;
3577 size_t size;
3578
3579 max_accept = l->maxaccept ? l->maxaccept : 1;
3580 while (co_data(si_oc(si))) {
3581 char c;
3582
3583 if (max_accept <= 0)
3584 goto missing_budget;
3585 max_accept--;
3586
3587 to_skip = co_getchar(si_oc(si), &c);
3588 if (!to_skip)
3589 goto missing_data;
3590 else if (to_skip < 0)
3591 goto cli_abort;
3592
3593 if (c == '<') {
3594 /* rfc-6587, Non-Transparent-Framing: messages separated by
3595 * a trailing LF or CR LF
3596 */
3597 to_skip = co_getline(si_oc(si), buf->area, buf->size);
3598 if (!to_skip)
3599 goto missing_data;
3600 else if (to_skip < 0)
3601 goto cli_abort;
3602
3603 if (buf->area[to_skip - 1] != '\n')
3604 goto parse_error;
3605
3606 buf->data = to_skip - 1;
3607
3608 /* according to rfc-6587, some devices adds CR before LF */
3609 if (buf->data && buf->area[buf->data - 1] == '\r')
3610 buf->data--;
3611
3612 }
3613 else if ((unsigned char)(c - '1') <= 8) {
3614 /* rfc-6587, Octet-Counting: message length in ASCII
3615 * (first digit can not be ZERO), followed by a space
3616 * and message length
3617 */
3618 char *p = NULL;
3619 int msglen;
3620
3621 to_skip = co_getword(si_oc(si), buf->area, buf->size, ' ');
3622 if (!to_skip)
3623 goto missing_data;
3624 else if (to_skip < 0)
3625 goto cli_abort;
3626
3627 if (buf->area[to_skip - 1] != ' ')
3628 goto parse_error;
3629
3630 msglen = strtol(trash.area, &p, 10);
3631 if (!msglen || p != &buf->area[to_skip - 1])
3632 goto parse_error;
3633
3634 /* message seems too large */
3635 if (msglen > buf->size)
3636 goto parse_error;
3637
3638 msglen = co_getblk(si_oc(si), buf->area, msglen, to_skip);
3639 if (!msglen)
3640 goto missing_data;
3641 else if (msglen < 0)
3642 goto cli_abort;
3643
3644
3645 buf->data = msglen;
3646 to_skip += msglen;
3647 }
3648 else
3649 goto parse_error;
3650
3651 co_skip(si_oc(si), to_skip);
3652
3653 /* update counters */
3654 _HA_ATOMIC_ADD(&cum_log_messages, 1);
3655 proxy_inc_fe_req_ctr(l, frontend);
3656
3657 parse_log_message(buf->area, buf->data, &level, &facility, metadata, &message, &size);
3658
3659 process_send_log(&frontend->logsrvs, level, facility, metadata, message, size);
3660
3661 }
3662
3663missing_data:
3664 /* we need more data to read */
3665 si_oc(si)->flags |= CF_READ_DONTWAIT;
3666
3667 return;
3668
3669missing_budget:
3670 /* it may remain some stuff to do, let's retry later */
3671 appctx_wakeup(appctx);
3672
3673 return;
3674
3675parse_error:
3676 if (l->counters)
3677 _HA_ATOMIC_ADD(&l->counters->failed_req, 1);
3678 _HA_ATOMIC_ADD(&frontend->fe_counters.failed_req, 1);
3679
3680 goto close;
3681
3682cli_abort:
3683 if (l->counters)
3684 _HA_ATOMIC_ADD(&l->counters->cli_aborts, 1);
3685 _HA_ATOMIC_ADD(&frontend->fe_counters.cli_aborts, 1);
3686
3687close:
3688 si_shutw(si);
3689 si_shutr(si);
3690
3691 si_ic(si)->flags |= CF_READ_NULL;
3692
3693 return;
3694}
3695
3696static struct applet syslog_applet = {
3697 .obj_type = OBJ_TYPE_APPLET,
3698 .name = "<SYSLOG>", /* used for logging */
3699 .fct = syslog_io_handler,
3700 .release = NULL,
3701};
3702
3703/*
Emeric Brun12941c82020-07-07 14:19:42 +02003704 * Parse "log-forward" section and create corresponding sink buffer.
3705 *
3706 * The function returns 0 in success case, otherwise, it returns error
3707 * flags.
3708 */
3709int cfg_parse_log_forward(const char *file, int linenum, char **args, int kwm)
3710{
3711 int err_code = 0;
3712 struct proxy *px;
3713 char *errmsg = NULL;
3714 const char *err = NULL;
3715
3716 if (strcmp(args[0], "log-forward") == 0) {
3717 if (!*args[1]) {
3718 ha_alert("parsing [%s:%d] : missing name for ip-forward section.\n", file, linenum);
3719 err_code |= ERR_ALERT | ERR_ABORT;
3720 goto out;
3721 }
3722
3723 if (alertif_too_many_args(1, file, linenum, args, &err_code))
3724 goto out;
3725
3726 err = invalid_char(args[1]);
3727 if (err) {
3728 ha_alert("parsing [%s:%d] : character '%c' is not permitted in '%s' name '%s'.\n",
3729 file, linenum, *err, args[0], args[1]);
3730 err_code |= ERR_ALERT | ERR_ABORT;
3731 goto out;
3732 }
3733
Emeric Brunb0c331f2020-10-07 17:05:59 +02003734 px = log_forward_by_name(args[1]);
3735 if (px) {
3736 ha_alert("Parsing [%s:%d]: log-forward section '%s' has the same name as another log-forward section declared at %s:%d.\n",
3737 file, linenum, args[1], px->conf.file, px->conf.line);
3738 err_code |= ERR_ALERT | ERR_FATAL;
3739 }
3740
3741 px = proxy_find_by_name(args[1], 0, 0);
3742 if (px) {
3743 ha_alert("Parsing [%s:%d]: log forward section '%s' has the same name as %s '%s' declared at %s:%d.\n",
3744 file, linenum, args[1], proxy_type_str(px),
3745 px->id, px->conf.file, px->conf.line);
3746 err_code |= ERR_ALERT | ERR_FATAL;
Emeric Brun12941c82020-07-07 14:19:42 +02003747 }
3748
3749 px = calloc(1, sizeof *px);
3750 if (!px) {
3751 err_code |= ERR_ALERT | ERR_FATAL;
3752 goto out;
3753 }
3754
3755 px->next = cfg_log_forward;
3756 cfg_log_forward = px;
3757
3758 init_new_proxy(px);
3759 px->conf.file = strdup(file);
3760 px->conf.line = linenum;
3761 px->mode = PR_MODE_SYSLOG;
Emeric Bruncbb7bf72020-10-05 14:39:35 +02003762 px->last_change = now.tv_sec;
3763 px->cap = PR_CAP_FE;
3764 px->maxconn = 10;
3765 px->timeout.client = TICK_ETERNITY;
3766 px->accept = frontend_accept;
3767 px->default_target = &syslog_applet.obj_type;
Emeric Brun12941c82020-07-07 14:19:42 +02003768 px->id = strdup(args[1]);
3769
Emeric Bruncbb7bf72020-10-05 14:39:35 +02003770 }
3771 else if (!strcmp(args[0], "maxconn")) { /* maxconn */
3772 if (warnifnotcap(cfg_log_forward, PR_CAP_FE, file, linenum, args[0], " Maybe you want 'fullconn' instead ?"))
3773 err_code |= ERR_WARN;
3774
3775 if (*(args[1]) == 0) {
3776 ha_alert("parsing [%s:%d] : '%s' expects an integer argument.\n", file, linenum, args[0]);
3777 err_code |= ERR_ALERT | ERR_FATAL;
3778 goto out;
3779 }
3780 cfg_log_forward->maxconn = atol(args[1]);
3781 if (alertif_too_many_args(1, file, linenum, args, &err_code))
3782 goto out;
3783 }
3784 else if (!strcmp(args[0], "backlog")) { /* backlog */
3785 if (warnifnotcap(cfg_log_forward, PR_CAP_FE, file, linenum, args[0], NULL))
3786 err_code |= ERR_WARN;
3787
3788 if (*(args[1]) == 0) {
3789 ha_alert("parsing [%s:%d] : '%s' expects an integer argument.\n", file, linenum, args[0]);
3790 err_code |= ERR_ALERT | ERR_FATAL;
3791 goto out;
3792 }
3793 cfg_log_forward->backlog = atol(args[1]);
3794 if (alertif_too_many_args(1, file, linenum, args, &err_code))
3795 goto out;
3796 }
3797 else if (strcmp(args[0], "bind") == 0) {
3798 int cur_arg;
3799 static int kws_dumped;
3800 struct bind_conf *bind_conf;
3801 struct bind_kw *kw;
3802 struct listener *l;
3803
3804 cur_arg = 1;
3805
3806 bind_conf = bind_conf_alloc(cfg_log_forward, file, linenum,
3807 NULL, xprt_get(XPRT_RAW));
3808 if (!bind_conf) {
3809 ha_alert("parsing [%s:%d] : out of memory error.", file, linenum);
3810 err_code |= ERR_ALERT | ERR_FATAL;
3811 goto out;
3812 }
3813
3814 if (!str2listener(args[1], cfg_log_forward, bind_conf, file, linenum, &errmsg)) {
3815 if (errmsg && *errmsg) {
3816 indent_msg(&errmsg, 2);
3817 ha_alert("parsing [%s:%d] : '%s %s' : %s\n", file, linenum, args[0], args[1], errmsg);
3818 }
3819 else {
3820 ha_alert("parsing [%s:%d] : '%s %s' : error encountered while parsing listening address %s.\n",
3821 file, linenum, args[0], args[1], args[2]);
3822 err_code |= ERR_ALERT | ERR_FATAL;
3823 goto out;
3824 }
3825 }
3826 list_for_each_entry(l, &bind_conf->listeners, by_bind) {
3827 l->maxaccept = global.tune.maxaccept ? global.tune.maxaccept : 64;
3828 l->accept = session_accept_fd;
3829 l->analysers |= cfg_log_forward->fe_req_ana;
3830 l->default_target = cfg_log_forward->default_target;
3831 global.maxsock++;
3832 }
3833 cur_arg++;
3834
3835 while (*args[cur_arg] && (kw = bind_find_kw(args[cur_arg]))) {
3836 int ret;
3837
3838 ret = kw->parse(args, cur_arg, cfg_log_forward, bind_conf, &errmsg);
3839 err_code |= ret;
3840 if (ret) {
3841 if (errmsg && *errmsg) {
3842 indent_msg(&errmsg, 2);
3843 ha_alert("parsing [%s:%d] : %s\n", file, linenum, errmsg);
3844 }
3845 else
3846 ha_alert("parsing [%s:%d]: error encountered while processing '%s'\n",
3847 file, linenum, args[cur_arg]);
3848 if (ret & ERR_FATAL)
3849 goto out;
3850 }
3851 cur_arg += 1 + kw->skip;
3852 }
3853 if (*args[cur_arg] != 0) {
3854 char *kws = NULL;
3855
3856 if (!kws_dumped) {
3857 kws_dumped = 1;
3858 bind_dump_kws(&kws);
3859 indent_msg(&kws, 4);
3860 }
3861 ha_alert("parsing [%s:%d] : unknown keyword '%s' in '%s' section.%s%s\n",
3862 file, linenum, args[cur_arg], cursection,
3863 kws ? " Registered keywords :" : "", kws ? kws: "");
3864 free(kws);
3865 err_code |= ERR_ALERT | ERR_FATAL;
3866 goto out;
3867 }
Emeric Brun12941c82020-07-07 14:19:42 +02003868 }
Willy Tarreau76aaa7f2020-09-16 15:07:22 +02003869 else if (strcmp(args[0], "dgram-bind") == 0) {
Emeric Brun12941c82020-07-07 14:19:42 +02003870 int cur_arg;
3871 static int kws_dumped;
3872 struct bind_conf *bind_conf;
3873 struct bind_kw *kw;
3874 struct listener *l;
3875
3876 cur_arg = 1;
3877
3878 bind_conf = bind_conf_alloc(cfg_log_forward, file, linenum,
3879 NULL, xprt_get(XPRT_RAW));
3880
Willy Tarreau26ff5da2020-09-16 15:22:19 +02003881 if (!str2receiver(args[1], cfg_log_forward, bind_conf, file, linenum, &errmsg)) {
Emeric Brun12941c82020-07-07 14:19:42 +02003882 if (errmsg && *errmsg) {
3883 indent_msg(&errmsg, 2);
3884 ha_alert("parsing [%s:%d] : '%s %s' : %s\n", file, linenum, args[0], args[1], errmsg);
3885 }
3886 else {
3887 ha_alert("parsing [%s:%d] : '%s %s' : error encountered while parsing listening address %s.\n",
3888 file, linenum, args[0], args[1], args[2]);
Emeric Brun12941c82020-07-07 14:19:42 +02003889 }
Willy Tarreau3b139e52020-09-16 16:24:14 +02003890 err_code |= ERR_ALERT | ERR_FATAL;
3891 goto out;
Emeric Brun12941c82020-07-07 14:19:42 +02003892 }
3893 list_for_each_entry(l, &bind_conf->listeners, by_bind) {
Willy Tarreau26ff5da2020-09-16 15:22:19 +02003894 /* the fact that the sockets are of type dgram is guaranteed by str2receiver() */
Emeric Brun12941c82020-07-07 14:19:42 +02003895 l->maxaccept = global.tune.maxaccept ? global.tune.maxaccept : 64;
Willy Tarreaue140a692020-10-15 21:25:32 +02003896 l->rx.iocb = syslog_fd_handler;
Emeric Brun12941c82020-07-07 14:19:42 +02003897 global.maxsock++;
3898 }
3899 cur_arg++;
3900
3901 while (*args[cur_arg] && (kw = bind_find_kw(args[cur_arg]))) {
3902 int ret;
3903
3904 ret = kw->parse(args, cur_arg, cfg_log_forward, bind_conf, &errmsg);
3905 err_code |= ret;
3906 if (ret) {
3907 if (errmsg && *errmsg) {
3908 indent_msg(&errmsg, 2);
3909 ha_alert("parsing [%s:%d] : %s\n", file, linenum, errmsg);
3910 }
3911 else
3912 ha_alert("parsing [%s:%d]: error encountered while processing '%s'\n",
3913 file, linenum, args[cur_arg]);
3914 if (ret & ERR_FATAL)
3915 goto out;
3916 }
3917 cur_arg += 1 + kw->skip;
3918 }
3919 if (*args[cur_arg] != 0) {
3920 char *kws = NULL;
3921
3922 if (!kws_dumped) {
3923 kws_dumped = 1;
3924 bind_dump_kws(&kws);
3925 indent_msg(&kws, 4);
3926 }
3927 ha_alert("parsing [%s:%d] : unknown keyword '%s' in '%s' section.%s%s\n",
3928 file, linenum, args[cur_arg], cursection,
3929 kws ? " Registered keywords :" : "", kws ? kws: "");
3930 free(kws);
3931 err_code |= ERR_ALERT | ERR_FATAL;
3932 goto out;
3933 }
3934 }
3935 else if (strcmp(args[0], "log") == 0) {
3936 if (!parse_logsrv(args, &cfg_log_forward->logsrvs, (kwm == KWM_NO), &errmsg)) {
3937 ha_alert("parsing [%s:%d] : %s : %s\n", file, linenum, args[0], errmsg);
3938 err_code |= ERR_ALERT | ERR_FATAL;
3939 goto out;
3940 }
Emeric Bruncbb7bf72020-10-05 14:39:35 +02003941 }
3942 else if (strcmp(args[0], "timeout") == 0) {
3943 const char *res;
3944 unsigned timeout;
3945
3946 if (strcmp(args[1], "client") != 0) {
3947 ha_alert("parsing [%s:%d] : unknown keyword '%s %s' in log-forward section.\n", file, linenum, args[0], args[1]);
3948 err_code |= ERR_ALERT | ERR_FATAL;
3949 goto out;
3950 }
3951
3952 if (*args[2] == 0) {
3953 ha_alert("parsing [%s:%d] : missing timeout client value.\n", file, linenum);
3954 err_code |= ERR_ALERT | ERR_FATAL;
3955 goto out;
3956 }
3957 res = parse_time_err(args[2], &timeout, TIME_UNIT_MS);
3958 if (res == PARSE_TIME_OVER) {
3959 memprintf(&errmsg, "timer overflow in argument '%s' to 'timeout client' (maximum value is 2147483647 ms or ~24.8 days)", args[2]);
3960 }
3961 else if (res == PARSE_TIME_UNDER) {
3962 memprintf(&errmsg, "timer underflow in argument '%s' to 'timeout client' (minimum non-null value is 1 ms)", args[2]);
3963 }
3964 else if (res) {
3965 memprintf(&errmsg, "unexpected character '%c' in 'timeout client'", *res);
3966 return -1;
3967 }
3968
3969 if (res) {
3970 ha_alert("parsing [%s:%d] : %s : %s\n", file, linenum, args[0], errmsg);
3971 err_code |= ERR_ALERT | ERR_FATAL;
3972 goto out;
3973 }
3974 cfg_log_forward->timeout.client = MS_TO_TICKS(timeout);
Emeric Brun12941c82020-07-07 14:19:42 +02003975 }
Willy Tarreauf9feec22020-09-16 15:04:33 +02003976 else {
3977 ha_alert("parsing [%s:%d] : unknown keyword '%s' in log-forward section.\n", file, linenum, args[0]);
3978 err_code |= ERR_ALERT | ERR_ABORT;
3979 goto out;
3980 }
Emeric Brun12941c82020-07-07 14:19:42 +02003981out:
3982 return err_code;
3983}
3984
3985
Willy Tarreau869efd52019-11-15 15:16:57 +01003986/* parse the "show startup-logs" command, returns 1 if a message is returned, otherwise zero */
3987static int cli_parse_show_startup_logs(char **args, char *payload, struct appctx *appctx, void *private)
Christopher Fauletc1b730a2017-10-24 12:00:51 +02003988{
Willy Tarreau869efd52019-11-15 15:16:57 +01003989 if (!cli_has_level(appctx, ACCESS_LVL_OPER))
3990 return 1;
Christopher Fauletc1b730a2017-10-24 12:00:51 +02003991
Willy Tarreau869efd52019-11-15 15:16:57 +01003992 if (!startup_logs)
3993 return cli_msg(appctx, LOG_INFO, "\n"); // nothing to print
3994
3995 return ring_attach_cli(startup_logs, appctx);
Christopher Fauletc1b730a2017-10-24 12:00:51 +02003996}
3997
3998/* register cli keywords */
3999static struct cli_kw_list cli_kws = {{ },{
4000 { { "show", "startup-logs", NULL },
Willy Tarreau869efd52019-11-15 15:16:57 +01004001 "show startup-logs : report logs emitted during HAProxy startup", cli_parse_show_startup_logs, NULL, NULL },
Christopher Fauletc1b730a2017-10-24 12:00:51 +02004002 {{},}
4003}};
4004
Willy Tarreau0108d902018-11-25 19:14:37 +01004005INITCALL1(STG_REGISTER, cli_register_kw, &cli_kws);
4006
Emeric Brun12941c82020-07-07 14:19:42 +02004007/* config parsers for this section */
4008REGISTER_CONFIG_SECTION("log-forward", cfg_parse_log_forward, NULL);
4009
Willy Tarreau082b6282019-05-22 14:42:12 +02004010REGISTER_PER_THREAD_ALLOC(init_log_buffers);
4011REGISTER_PER_THREAD_FREE(deinit_log_buffers);
Willy Tarreau172f5ce2018-11-26 11:21:50 +01004012
Willy Tarreaubaaee002006-06-26 02:48:02 +02004013/*
4014 * Local variables:
4015 * c-indent-level: 8
4016 * c-basic-offset: 8
4017 * End:
4018 */