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haproxy/src/log.c
Andrew Hayworth 0ebc55f6b4 MEDIUM: logs: Add HTTP request-line log format directives 
This commit adds 4 new log format variables that parse the
HTTP Request-Line for more specific logging than "%r" provides.

For example, we can parse the following HTTP Request-Line with
these new variables:

  "GET /foo?bar=baz HTTP/1.1"

- %HM: HTTP Method ("GET")
- %HV: HTTP Version ("HTTP/1.1")
- %HU: HTTP Request-URI ("/foo?bar=baz")
- %HP: HTTP Request-URI without query string ("/foo")
2015-04-28 21:03:05 +02:00

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/*
* General logging functions.
*
* Copyright 2000-2008 Willy Tarreau <w@1wt.eu>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version
* 2 of the License, or (at your option) any later version.
*
*/
#include <ctype.h>
#include <fcntl.h>
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <syslog.h>
#include <time.h>
#include <unistd.h>
#include <errno.h>
#include <sys/time.h>
#include <common/config.h>
#include <common/compat.h>
#include <common/standard.h>
#include <common/time.h>
#include <types/global.h>
#include <types/log.h>
#include <proto/frontend.h>
#include <proto/proto_http.h>
#include <proto/log.h>
#include <proto/sample.h>
#include <proto/stream.h>
#include <proto/stream_interface.h>
#ifdef USE_OPENSSL
#include <proto/ssl_sock.h>
#endif
const char *log_facilities[NB_LOG_FACILITIES] = {
"kern", "user", "mail", "daemon",
"auth", "syslog", "lpr", "news",
"uucp", "cron", "auth2", "ftp",
"ntp", "audit", "alert", "cron2",
"local0", "local1", "local2", "local3",
"local4", "local5", "local6", "local7"
};
const char *log_levels[NB_LOG_LEVELS] = {
"emerg", "alert", "crit", "err",
"warning", "notice", "info", "debug"
};
const char sess_term_cond[16] = "-LcCsSPRIDKUIIII"; /* normal, Local, CliTo, CliErr, SrvTo, SrvErr, PxErr, Resource, Internal, Down, Killed, Up, -- */
const char sess_fin_state[8] = "-RCHDLQT"; /* cliRequest, srvConnect, srvHeader, Data, Last, Queue, Tarpit */
/* log_format */
struct logformat_type {
char *name;
int type;
int mode;
int lw; /* logwait bitsfield */
int (*config_callback)(struct logformat_node *node, struct proxy *curproxy);
const char *replace_by; /* new option to use instead of old one */
};
int prepare_addrsource(struct logformat_node *node, struct proxy *curproxy);
/* log_format variable names */
static const struct logformat_type logformat_keywords[] = {
{ "o", LOG_FMT_GLOBAL, PR_MODE_TCP, 0, NULL }, /* global option */
/* please keep these lines sorted ! */
{ "B", LOG_FMT_BYTES, PR_MODE_TCP, LW_BYTES, NULL }, /* bytes from server to client */
{ "CC", LOG_FMT_CCLIENT, PR_MODE_HTTP, LW_REQHDR, NULL }, /* client cookie */
{ "CS", LOG_FMT_CSERVER, PR_MODE_HTTP, LW_RSPHDR, NULL }, /* server cookie */
{ "H", LOG_FMT_HOSTNAME, PR_MODE_TCP, LW_INIT, NULL }, /* Hostname */
{ "ID", LOG_FMT_UNIQUEID, PR_MODE_HTTP, LW_BYTES, NULL }, /* Unique ID */
{ "ST", LOG_FMT_STATUS, PR_MODE_TCP, LW_RESP, NULL }, /* status code */
{ "T", LOG_FMT_DATEGMT, PR_MODE_TCP, LW_INIT, NULL }, /* date GMT */
{ "Tc", LOG_FMT_TC, PR_MODE_TCP, LW_BYTES, NULL }, /* Tc */
{ "Tl", LOG_FMT_DATELOCAL, PR_MODE_TCP, LW_INIT, NULL }, /* date local timezone */
{ "Tq", LOG_FMT_TQ, PR_MODE_HTTP, LW_BYTES, NULL }, /* Tq */
{ "Tr", LOG_FMT_TR, PR_MODE_HTTP, LW_BYTES, NULL }, /* Tr */
{ "Ts", LOG_FMT_TS, PR_MODE_TCP, LW_INIT, NULL }, /* timestamp GMT */
{ "Tt", LOG_FMT_TT, PR_MODE_TCP, LW_BYTES, NULL }, /* Tt */
{ "Tw", LOG_FMT_TW, PR_MODE_TCP, LW_BYTES, NULL }, /* Tw */
{ "U", LOG_FMT_BYTES_UP, PR_MODE_TCP, LW_BYTES, NULL }, /* bytes from client to server */
{ "ac", LOG_FMT_ACTCONN, PR_MODE_TCP, LW_BYTES, NULL }, /* actconn */
{ "b", LOG_FMT_BACKEND, PR_MODE_TCP, LW_INIT, NULL }, /* backend */
{ "bc", LOG_FMT_BECONN, PR_MODE_TCP, LW_BYTES, NULL }, /* beconn */
{ "bi", LOG_FMT_BACKENDIP, PR_MODE_TCP, LW_BCKIP, prepare_addrsource }, /* backend source ip */
{ "bp", LOG_FMT_BACKENDPORT, PR_MODE_TCP, LW_BCKIP, prepare_addrsource }, /* backend source port */
{ "bq", LOG_FMT_BCKQUEUE, PR_MODE_TCP, LW_BYTES, NULL }, /* backend_queue */
{ "ci", LOG_FMT_CLIENTIP, PR_MODE_TCP, LW_CLIP, NULL }, /* client ip */
{ "cp", LOG_FMT_CLIENTPORT, PR_MODE_TCP, LW_CLIP, NULL }, /* client port */
{ "f", LOG_FMT_FRONTEND, PR_MODE_TCP, LW_INIT, NULL }, /* frontend */
{ "fc", LOG_FMT_FECONN, PR_MODE_TCP, LW_BYTES, NULL }, /* feconn */
{ "fi", LOG_FMT_FRONTENDIP, PR_MODE_TCP, LW_FRTIP, NULL }, /* frontend ip */
{ "fp", LOG_FMT_FRONTENDPORT, PR_MODE_TCP, LW_FRTIP, NULL }, /* frontend port */
{ "ft", LOG_FMT_FRONTEND_XPRT, PR_MODE_TCP, LW_INIT, NULL }, /* frontend with transport mode */
{ "hr", LOG_FMT_HDRREQUEST, PR_MODE_TCP, LW_REQHDR, NULL }, /* header request */
{ "hrl", LOG_FMT_HDRREQUESTLIST, PR_MODE_TCP, LW_REQHDR, NULL }, /* header request list */
{ "hs", LOG_FMT_HDRRESPONS, PR_MODE_TCP, LW_RSPHDR, NULL }, /* header response */
{ "hsl", LOG_FMT_HDRRESPONSLIST, PR_MODE_TCP, LW_RSPHDR, NULL }, /* header response list */
{ "HM", LOG_FMT_HTTP_METHOD, PR_MODE_HTTP, LW_REQ, NULL }, /* HTTP method */
{ "HP", LOG_FMT_HTTP_PATH, PR_MODE_HTTP, LW_REQ, NULL }, /* HTTP path */
{ "HU", LOG_FMT_HTTP_URI, PR_MODE_HTTP, LW_REQ, NULL }, /* HTTP full URI */
{ "HV", LOG_FMT_HTTP_VERSION, PR_MODE_HTTP, LW_REQ, NULL }, /* HTTP version */
{ "lc", LOG_FMT_LOGCNT, PR_MODE_TCP, LW_INIT, NULL }, /* log counter */
{ "ms", LOG_FMT_MS, PR_MODE_TCP, LW_INIT, NULL }, /* accept date millisecond */
{ "pid", LOG_FMT_PID, PR_MODE_TCP, LW_INIT, NULL }, /* log pid */
{ "r", LOG_FMT_REQ, PR_MODE_HTTP, LW_REQ, NULL }, /* request */
{ "rc", LOG_FMT_RETRIES, PR_MODE_TCP, LW_BYTES, NULL }, /* retries */
{ "rt", LOG_FMT_COUNTER, PR_MODE_TCP, LW_REQ, NULL }, /* request counter (HTTP or TCP session) */
{ "s", LOG_FMT_SERVER, PR_MODE_TCP, LW_SVID, NULL }, /* server */
{ "sc", LOG_FMT_SRVCONN, PR_MODE_TCP, LW_BYTES, NULL }, /* srv_conn */
{ "si", LOG_FMT_SERVERIP, PR_MODE_TCP, LW_SVIP, NULL }, /* server destination ip */
{ "sp", LOG_FMT_SERVERPORT, PR_MODE_TCP, LW_SVIP, NULL }, /* server destination port */
{ "sq", LOG_FMT_SRVQUEUE, PR_MODE_TCP, LW_BYTES, NULL }, /* srv_queue */
{ "sslc", LOG_FMT_SSL_CIPHER, PR_MODE_TCP, LW_XPRT, NULL }, /* client-side SSL ciphers */
{ "sslv", LOG_FMT_SSL_VERSION, PR_MODE_TCP, LW_XPRT, NULL }, /* client-side SSL protocol version */
{ "t", LOG_FMT_DATE, PR_MODE_TCP, LW_INIT, NULL }, /* date */
{ "ts", LOG_FMT_TERMSTATE, PR_MODE_TCP, LW_BYTES, NULL },/* termination state */
{ "tsc", LOG_FMT_TERMSTATE_CK, PR_MODE_TCP, LW_INIT, NULL },/* termination state */
/* The following tags are deprecated and will be removed soon */
{ "Bi", LOG_FMT_BACKENDIP, PR_MODE_TCP, LW_BCKIP, prepare_addrsource, "bi" }, /* backend source ip */
{ "Bp", LOG_FMT_BACKENDPORT, PR_MODE_TCP, LW_BCKIP, prepare_addrsource, "bp" }, /* backend source port */
{ "Ci", LOG_FMT_CLIENTIP, PR_MODE_TCP, LW_CLIP, NULL, "ci" }, /* client ip */
{ "Cp", LOG_FMT_CLIENTPORT, PR_MODE_TCP, LW_CLIP, NULL, "cp" }, /* client port */
{ "Fi", LOG_FMT_FRONTENDIP, PR_MODE_TCP, LW_FRTIP, NULL, "fi" }, /* frontend ip */
{ "Fp", LOG_FMT_FRONTENDPORT, PR_MODE_TCP, LW_FRTIP, NULL, "fp" }, /* frontend port */
{ "Si", LOG_FMT_SERVERIP, PR_MODE_TCP, LW_SVIP, NULL, "si" }, /* server destination ip */
{ "Sp", LOG_FMT_SERVERPORT, PR_MODE_TCP, LW_SVIP, NULL, "sp" }, /* server destination port */
{ "cc", LOG_FMT_CCLIENT, PR_MODE_HTTP, LW_REQHDR, NULL, "CC" }, /* client cookie */
{ "cs", LOG_FMT_CSERVER, PR_MODE_HTTP, LW_RSPHDR, NULL, "CS" }, /* server cookie */
{ "st", LOG_FMT_STATUS, PR_MODE_HTTP, LW_RESP, NULL, "ST" }, /* status code */
{ 0, 0, 0, 0, NULL }
};
char default_http_log_format[] = "%ci:%cp [%t] %ft %b/%s %Tq/%Tw/%Tc/%Tr/%Tt %ST %B %CC %CS %tsc %ac/%fc/%bc/%sc/%rc %sq/%bq %hr %hs %{+Q}r"; // default format
char clf_http_log_format[] = "%{+Q}o %{-Q}ci - - [%T] %r %ST %B \"\" \"\" %cp %ms %ft %b %s %Tq %Tw %Tc %Tr %Tt %tsc %ac %fc %bc %sc %rc %sq %bq %CC %CS %hrl %hsl";
char default_tcp_log_format[] = "%ci:%cp [%t] %ft %b/%s %Tw/%Tc/%Tt %B %ts %ac/%fc/%bc/%sc/%rc %sq/%bq";
char *log_format = NULL;
/* This is a global syslog line, common to all outgoing messages. It begins
* with the syslog tag and the date that are updated by update_log_hdr().
*/
char *logline = NULL;
struct logformat_var_args {
char *name;
int mask;
};
struct logformat_var_args var_args_list[] = {
// global
{ "M", LOG_OPT_MANDATORY },
{ "Q", LOG_OPT_QUOTE },
{ "X", LOG_OPT_HEXA },
{ 0, 0 }
};
/* return the name of the directive used in the current proxy for which we're
* currently parsing a header, when it is known.
*/
static inline const char *fmt_directive(const struct proxy *curproxy)
{
switch (curproxy->conf.args.ctx) {
case ARGC_UIF:
return "unique-id-format";
case ARGC_HRQ:
return "http-request";
case ARGC_HRS:
return "http-response";
case ARGC_STK:
return "stick";
case ARGC_TRK:
return "track-sc"; break;
case ARGC_RDR:
return "redirect"; break;
case ARGC_ACL:
return "acl"; break;
default:
return "log-format";
}
}
/*
* callback used to configure addr source retrieval
*/
int prepare_addrsource(struct logformat_node *node, struct proxy *curproxy)
{
curproxy->options2 |= PR_O2_SRC_ADDR;
return 0;
}
/*
* Parse args in a logformat_var
*/
int parse_logformat_var_args(char *args, struct logformat_node *node)
{
int i = 0;
int end = 0;
int flags = 0; // 1 = + 2 = -
char *sp = NULL; // start pointer
if (args == NULL)
return 1;
while (1) {
if (*args == '\0')
end = 1;
if (*args == '+') {
// add flag
sp = args + 1;
flags = 1;
}
if (*args == '-') {
// delete flag
sp = args + 1;
flags = 2;
}
if (*args == '\0' || *args == ',') {
*args = '\0';
for (i = 0; sp && var_args_list[i].name; i++) {
if (strcmp(sp, var_args_list[i].name) == 0) {
if (flags == 1) {
node->options |= var_args_list[i].mask;
break;
} else if (flags == 2) {
node->options &= ~var_args_list[i].mask;
break;
}
}
}
sp = NULL;
if (end)
break;
}
args++;
}
return 0;
}
/*
* Parse a variable '%varname' or '%{args}varname' in log-format. The caller
* must pass the args part in the <arg> pointer with its length in <arg_len>,
* and varname with its length in <var> and <var_len> respectively. <arg> is
* ignored when arg_len is 0. Neither <var> nor <var_len> may be null.
*/
int parse_logformat_var(char *arg, int arg_len, char *var, int var_len, struct proxy *curproxy, struct list *list_format, int *defoptions)
{
int j;
struct logformat_node *node;
for (j = 0; logformat_keywords[j].name; j++) { // search a log type
if (strlen(logformat_keywords[j].name) == var_len &&
strncmp(var, logformat_keywords[j].name, var_len) == 0) {
if (logformat_keywords[j].mode != PR_MODE_HTTP || curproxy->mode == PR_MODE_HTTP) {
node = calloc(1, sizeof(struct logformat_node));
node->type = logformat_keywords[j].type;
node->options = *defoptions;
if (arg_len) {
node->arg = my_strndup(arg, arg_len);
parse_logformat_var_args(node->arg, node);
}
if (node->type == LOG_FMT_GLOBAL) {
*defoptions = node->options;
free(node->arg);
free(node);
} else {
if (logformat_keywords[j].config_callback &&
logformat_keywords[j].config_callback(node, curproxy) != 0) {
return -1;
}
curproxy->to_log |= logformat_keywords[j].lw;
LIST_ADDQ(list_format, &node->list);
}
if (logformat_keywords[j].replace_by)
Warning("parsing [%s:%d] : deprecated variable '%s' in '%s', please replace it with '%s'.\n",
curproxy->conf.args.file, curproxy->conf.args.line,
logformat_keywords[j].name, fmt_directive(curproxy), logformat_keywords[j].replace_by);
return 0;
} else {
Warning("parsing [%s:%d] : '%s' : format variable '%s' is reserved for HTTP mode.\n",
curproxy->conf.args.file, curproxy->conf.args.line, fmt_directive(curproxy),
logformat_keywords[j].name);
return -1;
}
}
}
j = var[var_len];
var[var_len] = 0;
Warning("parsing [%s:%d] : no such format variable '%s' in '%s'. If you wanted to emit the '%%' character verbatim, you need to use '%%%%' in log-format expressions.\n",
curproxy->conf.args.file, curproxy->conf.args.line, var, fmt_directive(curproxy));
var[var_len] = j;
return -1;
}
/*
* push to the logformat linked list
*
* start: start pointer
* end: end text pointer
* type: string type
* list_format: destination list
*
* LOG_TEXT: copy chars from start to end excluding end.
*
*/
void add_to_logformat_list(char *start, char *end, int type, struct list *list_format)
{
char *str;
if (type == LF_TEXT) { /* type text */
struct logformat_node *node = calloc(1, sizeof(struct logformat_node));
str = calloc(end - start + 1, 1);
strncpy(str, start, end - start);
str[end - start] = '\0';
node->arg = str;
node->type = LOG_FMT_TEXT; // type string
LIST_ADDQ(list_format, &node->list);
} else if (type == LF_SEPARATOR) {
struct logformat_node *node = calloc(1, sizeof(struct logformat_node));
node->type = LOG_FMT_SEPARATOR;
LIST_ADDQ(list_format, &node->list);
}
}
/*
* Parse the sample fetch expression <text> and add a node to <list_format> upon
* success. At the moment, sample converters are not yet supported but fetch arguments
* should work. The curpx->conf.args.ctx must be set by the caller.
*/
void add_sample_to_logformat_list(char *text, char *arg, int arg_len, struct proxy *curpx, struct list *list_format, int options, int cap, const char *file, int line)
{
char *cmd[2];
struct sample_expr *expr;
struct logformat_node *node;
int cmd_arg;
char *errmsg = NULL;
cmd[0] = text;
cmd[1] = "";
cmd_arg = 0;
expr = sample_parse_expr(cmd, &cmd_arg, file, line, &errmsg, &curpx->conf.args);
if (!expr) {
Warning("parsing [%s:%d] : '%s' : sample fetch <%s> failed with : %s\n",
curpx->conf.args.file, curpx->conf.args.line, fmt_directive(curpx),
text, errmsg);
return;
}
node = calloc(1, sizeof(struct logformat_node));
node->type = LOG_FMT_EXPR;
node->expr = expr;
node->options = options;
if (arg_len) {
node->arg = my_strndup(arg, arg_len);
parse_logformat_var_args(node->arg, node);
}
if (expr->fetch->val & cap & SMP_VAL_REQUEST)
node->options |= LOG_OPT_REQ_CAP; /* fetch method is request-compatible */
if (expr->fetch->val & cap & SMP_VAL_RESPONSE)
node->options |= LOG_OPT_RES_CAP; /* fetch method is response-compatible */
if (!(expr->fetch->val & cap))
Warning("parsing [%s:%d] : '%s' : sample fetch <%s> may not be reliably used here because it needs '%s' which is not available here.\n",
curpx->conf.args.file, curpx->conf.args.line, fmt_directive(curpx),
text, sample_src_names(expr->fetch->use));
/* check if we need to allocate an hdr_idx struct for HTTP parsing */
/* Note, we may also need to set curpx->to_log with certain fetches */
curpx->http_needed |= !!(expr->fetch->use & SMP_USE_HTTP_ANY);
/* FIXME: temporary workaround for missing LW_XPRT and LW_REQ flags
* needed with some sample fetches (eg: ssl*). We always set it for
* now on, but this will leave with sample capabilities soon.
*/
curpx->to_log |= LW_XPRT;
curpx->to_log |= LW_REQ;
LIST_ADDQ(list_format, &node->list);
}
/*
* Parse the log_format string and fill a linked list.
* Variable name are preceded by % and composed by characters [a-zA-Z0-9]* : %varname
* You can set arguments using { } : %{many arguments}varname.
* The curproxy->conf.args.ctx must be set by the caller.
*
* str: the string to parse
* curproxy: the proxy affected
* list_format: the destination list
* options: LOG_OPT_* to force on every node
* cap: all SMP_VAL_* flags supported by the consumer
*/
void parse_logformat_string(const char *fmt, struct proxy *curproxy, struct list *list_format, int options, int cap, const char *file, int line)
{
char *sp, *str, *backfmt; /* start pointer for text parts */
char *arg = NULL; /* start pointer for args */
char *var = NULL; /* start pointer for vars */
int arg_len = 0;
int var_len = 0;
int cformat; /* current token format */
int pformat; /* previous token format */
struct logformat_node *tmplf, *back;
sp = str = backfmt = strdup(fmt);
curproxy->to_log |= LW_INIT;
/* flush the list first. */
list_for_each_entry_safe(tmplf, back, list_format, list) {
LIST_DEL(&tmplf->list);
free(tmplf);
}
for (cformat = LF_INIT; cformat != LF_END; str++) {
pformat = cformat;
if (!*str)
cformat = LF_END; // preset it to save all states from doing this
/* The prinicple of the two-step state machine below is to first detect a change, and
* second have all common paths processed at one place. The common paths are the ones
* encountered in text areas (LF_INIT, LF_TEXT, LF_SEPARATOR) and at the end (LF_END).
* We use the common LF_INIT state to dispatch to the different final states.
*/
switch (pformat) {
case LF_STARTVAR: // text immediately following a '%'
arg = NULL; var = NULL;
arg_len = var_len = 0;
if (*str == '{') { // optional argument
cformat = LF_STARG;
arg = str + 1;
}
else if (*str == '[') {
cformat = LF_STEXPR;
var = str + 1; // store expr in variable name
}
else if (isalpha((unsigned char)*str)) { // variable name
cformat = LF_VAR;
var = str;
}
else if (*str == '%')
cformat = LF_TEXT; // convert this character to a litteral (useful for '%')
else if (isdigit((unsigned char)*str) || *str == ' ' || *str == '\t') {
/* single '%' followed by blank or digit, send them both */
cformat = LF_TEXT;
pformat = LF_TEXT; /* finally we include the previous char as well */
sp = str - 1; /* send both the '%' and the current char */
Warning("parsing [%s:%d] : Fixed missing '%%' before '%c' at position %d in %s line : '%s'. Please use '%%%%' when you need the '%%' character in a log-format expression.\n",
curproxy->conf.args.file, curproxy->conf.args.line, *str, (int)(str - backfmt), fmt_directive(curproxy), fmt);
}
else
cformat = LF_INIT; // handle other cases of litterals
break;
case LF_STARG: // text immediately following '%{'
if (*str == '}') { // end of arg
cformat = LF_EDARG;
arg_len = str - arg;
*str = 0; // used for reporting errors
}
break;
case LF_EDARG: // text immediately following '%{arg}'
if (*str == '[') {
cformat = LF_STEXPR;
var = str + 1; // store expr in variable name
break;
}
else if (isalnum((unsigned char)*str)) { // variable name
cformat = LF_VAR;
var = str;
break;
}
Warning("parsing [%s:%d] : Skipping isolated argument in '%s' line : '%%{%s}'\n",
curproxy->conf.args.file, curproxy->conf.args.line, fmt_directive(curproxy), arg);
cformat = LF_INIT;
break;
case LF_STEXPR: // text immediately following '%['
if (*str == ']') { // end of arg
cformat = LF_EDEXPR;
var_len = str - var;
*str = 0; // needed for parsing the expression
}
break;
case LF_VAR: // text part of a variable name
var_len = str - var;
if (!isalnum((unsigned char)*str))
cformat = LF_INIT; // not variable name anymore
break;
default: // LF_INIT, LF_TEXT, LF_SEPARATOR, LF_END, LF_EDEXPR
cformat = LF_INIT;
}
if (cformat == LF_INIT) { /* resynchronize state to text/sep/startvar */
switch (*str) {
case '%': cformat = LF_STARTVAR; break;
case ' ': cformat = LF_SEPARATOR; break;
case 0 : cformat = LF_END; break;
default : cformat = LF_TEXT; break;
}
}
if (cformat != pformat || pformat == LF_SEPARATOR) {
switch (pformat) {
case LF_VAR:
parse_logformat_var(arg, arg_len, var, var_len, curproxy, list_format, &options);
break;
case LF_STEXPR:
add_sample_to_logformat_list(var, arg, arg_len, curproxy, list_format, options, cap, file, line);
break;
case LF_TEXT:
case LF_SEPARATOR:
add_to_logformat_list(sp, str, pformat, list_format);
break;
}
sp = str; /* new start of text at every state switch and at every separator */
}
}
if (pformat == LF_STARTVAR || pformat == LF_STARG || pformat == LF_STEXPR)
Warning("parsing [%s:%d] : Ignoring end of truncated '%s' line after '%s'\n",
curproxy->conf.args.file, curproxy->conf.args.line, fmt_directive(curproxy),
var ? var : arg ? arg : "%");
free(backfmt);
}
/*
* Displays the message on stderr with the date and pid. Overrides the quiet
* mode during startup.
*/
void Alert(const char *fmt, ...)
{
va_list argp;
struct tm tm;
if (!(global.mode & MODE_QUIET) || (global.mode & (MODE_VERBOSE | MODE_STARTING))) {
va_start(argp, fmt);
get_localtime(date.tv_sec, &tm);
fprintf(stderr, "[ALERT] %03d/%02d%02d%02d (%d) : ",
tm.tm_yday, tm.tm_hour, tm.tm_min, tm.tm_sec, (int)getpid());
vfprintf(stderr, fmt, argp);
fflush(stderr);
va_end(argp);
}
}
/*
* Displays the message on stderr with the date and pid.
*/
void Warning(const char *fmt, ...)
{
va_list argp;
struct tm tm;
if (!(global.mode & MODE_QUIET) || (global.mode & MODE_VERBOSE)) {
va_start(argp, fmt);
get_localtime(date.tv_sec, &tm);
fprintf(stderr, "[WARNING] %03d/%02d%02d%02d (%d) : ",
tm.tm_yday, tm.tm_hour, tm.tm_min, tm.tm_sec, (int)getpid());
vfprintf(stderr, fmt, argp);
fflush(stderr);
va_end(argp);
}
}
/*
* Displays the message on <out> only if quiet mode is not set.
*/
void qfprintf(FILE *out, const char *fmt, ...)
{
va_list argp;
if (!(global.mode & MODE_QUIET) || (global.mode & MODE_VERBOSE)) {
va_start(argp, fmt);
vfprintf(out, fmt, argp);
fflush(out);
va_end(argp);
}
}
/*
* returns log level for <lev> or -1 if not found.
*/
int get_log_level(const char *lev)
{
int level;
level = NB_LOG_LEVELS - 1;
while (level >= 0 && strcmp(log_levels[level], lev))
level--;
return level;
}
/*
* returns log facility for <fac> or -1 if not found.
*/
int get_log_facility(const char *fac)
{
int facility;
facility = NB_LOG_FACILITIES - 1;
while (facility >= 0 && strcmp(log_facilities[facility], fac))
facility--;
return facility;
}
/*
* Write a string in the log string
* Take cares of quote options
*
* Return the adress of the \0 character, or NULL on error
*/
char *lf_text_len(char *dst, const char *src, size_t len, size_t size, struct logformat_node *node)
{
if (size < 2)
return NULL;
if (node->options & LOG_OPT_QUOTE) {
*(dst++) = '"';
size--;
}
if (src && len) {
if (++len > size)
len = size;
len = strlcpy2(dst, src, len);
size -= len;
dst += len;
}
else if ((node->options & (LOG_OPT_QUOTE|LOG_OPT_MANDATORY)) == LOG_OPT_MANDATORY) {
if (size < 2)
return NULL;
*(dst++) = '-';
}
if (node->options & LOG_OPT_QUOTE) {
if (size < 2)
return NULL;
*(dst++) = '"';
}
*dst = '\0';
return dst;
}
static inline char *lf_text(char *dst, const char *src, size_t size, struct logformat_node *node)
{
return lf_text_len(dst, src, size, size, node);
}
/*
* Write a IP adress to the log string
* +X option write in hexadecimal notation, most signifant byte on the left
*/
char *lf_ip(char *dst, struct sockaddr *sockaddr, size_t size, struct logformat_node *node)
{
char *ret = dst;
int iret;
char pn[INET6_ADDRSTRLEN];
if (node->options & LOG_OPT_HEXA) {
const unsigned char *addr = (const unsigned char *)&((struct sockaddr_in *)sockaddr)->sin_addr.s_addr;
iret = snprintf(dst, size, "%02X%02X%02X%02X", addr[0], addr[1], addr[2], addr[3]);
if (iret < 0 || iret > size)
return NULL;
ret += iret;
} else {
addr_to_str((struct sockaddr_storage *)sockaddr, pn, sizeof(pn));
ret = lf_text(dst, pn, size, node);
if (ret == NULL)
return NULL;
}
return ret;
}
/*
* Write a port to the log
* +X option write in hexadecimal notation, most signifant byte on the left
*/
char *lf_port(char *dst, struct sockaddr *sockaddr, size_t size, struct logformat_node *node)
{
char *ret = dst;
int iret;
if (node->options & LOG_OPT_HEXA) {
const unsigned char *port = (const unsigned char *)&((struct sockaddr_in *)sockaddr)->sin_port;
iret = snprintf(dst, size, "%02X%02X", port[0], port[1]);
if (iret < 0 || iret > size)
return NULL;
ret += iret;
} else {
ret = ltoa_o(get_host_port((struct sockaddr_storage *)sockaddr), dst, size);
if (ret == NULL)
return NULL;
}
return ret;
}
/* Re-generate the syslog header at the beginning of logline once a second and
* return the pointer to the first character after the header.
*/
static char *update_log_hdr(const char *log_tag)
{
static long tvsec;
static char *dataptr = NULL; /* backup of last end of header, NULL first time */
int tag_len;
if (unlikely(date.tv_sec != tvsec || dataptr == NULL)) {
/* this string is rebuild only once a second */
struct tm tm;
int hdr_len;
tvsec = date.tv_sec;
get_localtime(tvsec, &tm);
hdr_len = snprintf(logline, global.max_syslog_len,
"<<<<>%s %2d %02d:%02d:%02d %s",
monthname[tm.tm_mon],
tm.tm_mday, tm.tm_hour, tm.tm_min, tm.tm_sec,
global.log_send_hostname ? global.log_send_hostname : "");
/* WARNING: depending upon implementations, snprintf may return
* either -1 or the number of bytes that would be needed to store
* the total message. In both cases, we must adjust it.
*/
if (hdr_len < 0 || hdr_len > global.max_syslog_len)
hdr_len = global.max_syslog_len;
dataptr = logline + hdr_len;
}
dataptr[0] = 0; // ensure we get rid of any previous attempt
tag_len = snprintf(dataptr, logline + global.max_syslog_len - dataptr, "%s[%d]: ", log_tag, pid);
if (tag_len < 0 || tag_len > logline + global.max_syslog_len - dataptr)
tag_len = logline + global.max_syslog_len - dataptr;
return dataptr + tag_len;
}
/*
* This function adds a header to the message and sends the syslog message
* using a printf format string. It expects an LF-terminated message.
*/
void send_log(struct proxy *p, int level, const char *format, ...)
{
va_list argp;
char *dataptr;
int data_len;
if (level < 0 || format == NULL || logline == NULL)
return;
dataptr = update_log_hdr(p && p->log_tag ? p->log_tag : global.log_tag); /* update log header and skip it */
data_len = dataptr - logline;
va_start(argp, format);
data_len += vsnprintf(dataptr, logline + global.max_syslog_len - dataptr, format, argp);
if (data_len < 0 || data_len > global.max_syslog_len)
data_len = global.max_syslog_len;
va_end(argp);
__send_log(p, level, logline, data_len);
}
/*
* This function sends a syslog message.
* It doesn't care about errors nor does it report them.
* It overrides the last byte (message[size-1]) with an LF character.
*/
void __send_log(struct proxy *p, int level, char *message, size_t size)
{
static int logfdunix = -1; /* syslog to AF_UNIX socket */
static int logfdinet = -1; /* syslog to AF_INET socket */
static char *dataptr = NULL;
int fac_level;
struct list *logsrvs = NULL;
struct logsrv *tmp = NULL;
int nblogger;
char *log_ptr;
dataptr = message;
if (p == NULL) {
if (!LIST_ISEMPTY(&global.logsrvs)) {
logsrvs = &global.logsrvs;
}
} else {
if (!LIST_ISEMPTY(&p->logsrvs)) {
logsrvs = &p->logsrvs;
}
}
if (!logsrvs)
return;
/* Send log messages to syslog server. */
nblogger = 0;
list_for_each_entry(tmp, logsrvs, list) {
const struct logsrv *logsrv = tmp;
int *plogfd = logsrv->addr.ss_family == AF_UNIX ?
&logfdunix : &logfdinet;
int sent;
int max;
char backup;
nblogger++;
/* we can filter the level of the messages that are sent to each logger */
if (level > logsrv->level)
continue;
if (unlikely(*plogfd < 0)) {
/* socket not successfully initialized yet */
int proto = logsrv->addr.ss_family == AF_UNIX ? 0 : IPPROTO_UDP;
if ((*plogfd = socket(logsrv->addr.ss_family, SOCK_DGRAM, proto)) < 0) {
Alert("socket for logger #%d failed: %s (errno=%d)\n",
nblogger, strerror(errno), errno);
continue;
}
/* we don't want to receive anything on this socket */
setsockopt(*plogfd, SOL_SOCKET, SO_RCVBUF, &zero, sizeof(zero));
/* does nothing under Linux, maybe needed for others */
shutdown(*plogfd, SHUT_RD);
}
/* For each target, we may have a different facility.
* We can also have a different log level for each message.
* This induces variations in the message header length.
* Since we don't want to recompute it each time, nor copy it every
* time, we only change the facility in the pre-computed header,
* and we change the pointer to the header accordingly.
*/
fac_level = (logsrv->facility << 3) + MAX(level, logsrv->minlvl);
log_ptr = dataptr + 3; /* last digit of the log level */
do {
*log_ptr = '0' + fac_level % 10;
fac_level /= 10;
log_ptr--;
} while (fac_level && log_ptr > dataptr);
*log_ptr = '<';
max = size - (log_ptr - dataptr);
if (max > logsrv->maxlen)
max = logsrv->maxlen;
/* insert a \n at the end of the message, but save what was
* there first because we could have different max lengths
* for different log targets.
*/
backup = log_ptr[max - 1];
log_ptr[max - 1] = '\n';
sent = sendto(*plogfd, log_ptr, max,
MSG_DONTWAIT | MSG_NOSIGNAL,
(struct sockaddr *)&logsrv->addr, get_addr_len(&logsrv->addr));
log_ptr[max - 1] = backup;
if (sent < 0) {
Alert("sendto logger #%d failed: %s (errno=%d)\n",
nblogger, strerror(errno), errno);
}
}
}
extern fd_set hdr_encode_map[];
extern fd_set url_encode_map[];
extern fd_set http_encode_map[];
const char sess_cookie[8] = "NIDVEOU7"; /* No cookie, Invalid cookie, cookie for a Down server, Valid cookie, Expired cookie, Old cookie, Unused, unknown */
const char sess_set_cookie[8] = "NPDIRU67"; /* No set-cookie, Set-cookie found and left unchanged (passive),
Set-cookie Deleted, Set-Cookie Inserted, Set-cookie Rewritten,
Set-cookie Updated, unknown, unknown */
/*
* try to write a character if there is enough space, or goto out
*/
#define LOGCHAR(x) do { \
if (tmplog < dst + maxsize - 1) { \
*(tmplog++) = (x); \
} else { \
goto out; \
} \
} while(0)
/* Builds a log line in <dst> based on <list_format>, and stops before reaching
* <maxsize> characters. Returns the size of the output string in characters,
* not counting the trailing zero which is always added if the resulting size
* is not zero.
*/
int build_logline(struct stream *s, char *dst, size_t maxsize, struct list *list_format)
{
struct session *sess = strm_sess(s);
struct proxy *fe = sess->fe;
struct proxy *be = s->be;
struct http_txn *txn = s->txn;
struct chunk chunk;
char *uri;
char *spc;
char *end;
struct tm tm;
int t_request;
int hdr;
int last_isspace = 1;
int nspaces = 0;
char *tmplog;
char *ret;
int iret;
struct logformat_node *tmp;
/* FIXME: let's limit ourselves to frontend logging for now. */
t_request = -1;
if (tv_isge(&s->logs.tv_request, &s->logs.tv_accept))
t_request = tv_ms_elapsed(&s->logs.tv_accept, &s->logs.tv_request);
tmplog = dst;
/* fill logbuffer */
if (LIST_ISEMPTY(list_format))
return 0;
list_for_each_entry(tmp, list_format, list) {
struct connection *conn;
const char *src = NULL;
struct sample *key;
const struct chunk empty = { NULL, 0, 0 };
switch (tmp->type) {
case LOG_FMT_SEPARATOR:
if (!last_isspace) {
LOGCHAR(' ');
last_isspace = 1;
}
break;
case LOG_FMT_TEXT: // text
src = tmp->arg;
iret = strlcpy2(tmplog, src, dst + maxsize - tmplog);
if (iret == 0)
goto out;
tmplog += iret;
last_isspace = 0;
break;
case LOG_FMT_EXPR: // sample expression, may be request or response
key = NULL;
if (tmp->options & LOG_OPT_REQ_CAP)
key = sample_fetch_string(be, sess, s, SMP_OPT_DIR_REQ|SMP_OPT_FINAL, tmp->expr);
if (!key && (tmp->options & LOG_OPT_RES_CAP))
key = sample_fetch_string(be, sess, s, SMP_OPT_DIR_RES|SMP_OPT_FINAL, tmp->expr);
if (tmp->options & LOG_OPT_HTTP)
ret = encode_chunk(tmplog, dst + maxsize,
'%', http_encode_map, key ? &key->data.str : &empty);
else
ret = lf_text_len(tmplog, key ? key->data.str.str : NULL, key ? key->data.str.len : 0, dst + maxsize - tmplog, tmp);
if (ret == 0)
goto out;
tmplog = ret;
last_isspace = 0;
break;
case LOG_FMT_CLIENTIP: // %ci
conn = objt_conn(sess->origin);
if (conn)
ret = lf_ip(tmplog, (struct sockaddr *)&conn->addr.from, dst + maxsize - tmplog, tmp);
else
ret = lf_text_len(tmplog, NULL, 0, dst + maxsize - tmplog, tmp);
if (ret == NULL)
goto out;
tmplog = ret;
last_isspace = 0;
break;
case LOG_FMT_CLIENTPORT: // %cp
conn = objt_conn(sess->origin);
if (conn) {
if (conn->addr.from.ss_family == AF_UNIX) {
ret = ltoa_o(sess->listener->luid, tmplog, dst + maxsize - tmplog);
} else {
ret = lf_port(tmplog, (struct sockaddr *)&conn->addr.from,
dst + maxsize - tmplog, tmp);
}
}
else
ret = lf_text_len(tmplog, NULL, 0, dst + maxsize - tmplog, tmp);
if (ret == NULL)
goto out;
tmplog = ret;
last_isspace = 0;
break;
case LOG_FMT_FRONTENDIP: // %fi
conn = objt_conn(sess->origin);
if (conn) {
conn_get_to_addr(conn);
ret = lf_ip(tmplog, (struct sockaddr *)&conn->addr.to, dst + maxsize - tmplog, tmp);
}
else
ret = lf_text_len(tmplog, NULL, 0, dst + maxsize - tmplog, tmp);
if (ret == NULL)
goto out;
tmplog = ret;
last_isspace = 0;
break;
case LOG_FMT_FRONTENDPORT: // %fp
conn = objt_conn(sess->origin);
if (conn) {
conn_get_to_addr(conn);
if (conn->addr.to.ss_family == AF_UNIX)
ret = ltoa_o(sess->listener->luid, tmplog, dst + maxsize - tmplog);
else
ret = lf_port(tmplog, (struct sockaddr *)&conn->addr.to, dst + maxsize - tmplog, tmp);
}
else
ret = lf_text_len(tmplog, NULL, 0, dst + maxsize - tmplog, tmp);
if (ret == NULL)
goto out;
tmplog = ret;
last_isspace = 0;
break;
case LOG_FMT_BACKENDIP: // %bi
conn = objt_conn(s->si[1].end);
if (conn)
ret = lf_ip(tmplog, (struct sockaddr *)&conn->addr.from, dst + maxsize - tmplog, tmp);
else
ret = lf_text_len(tmplog, NULL, 0, dst + maxsize - tmplog, tmp);
if (ret == NULL)
goto out;
tmplog = ret;
last_isspace = 0;
break;
case LOG_FMT_BACKENDPORT: // %bp
conn = objt_conn(s->si[1].end);
if (conn)
ret = lf_port(tmplog, (struct sockaddr *)&conn->addr.from, dst + maxsize - tmplog, tmp);
else
ret = lf_text_len(tmplog, NULL, 0, dst + maxsize - tmplog, tmp);
if (ret == NULL)
goto out;
tmplog = ret;
last_isspace = 0;
break;
case LOG_FMT_SERVERIP: // %si
conn = objt_conn(s->si[1].end);
if (conn)
ret = lf_ip(tmplog, (struct sockaddr *)&conn->addr.to, dst + maxsize - tmplog, tmp);
else
ret = lf_text_len(tmplog, NULL, 0, dst + maxsize - tmplog, tmp);
if (ret == NULL)
goto out;
tmplog = ret;
last_isspace = 0;
break;
case LOG_FMT_SERVERPORT: // %sp
conn = objt_conn(s->si[1].end);
if (conn)
ret = lf_port(tmplog, (struct sockaddr *)&conn->addr.to, dst + maxsize - tmplog, tmp);
else
ret = lf_text_len(tmplog, NULL, 0, dst + maxsize - tmplog, tmp);
if (ret == NULL)
goto out;
tmplog = ret;
last_isspace = 0;
break;
case LOG_FMT_DATE: // %t
get_localtime(s->logs.accept_date.tv_sec, &tm);
ret = date2str_log(tmplog, &tm, &(s->logs.accept_date),
dst + maxsize - tmplog);
if (ret == NULL)
goto out;
tmplog = ret;
last_isspace = 0;
break;
case LOG_FMT_DATEGMT: // %T
get_gmtime(s->logs.accept_date.tv_sec, &tm);
ret = gmt2str_log(tmplog, &tm, dst + maxsize - tmplog);
if (ret == NULL)
goto out;
tmplog = ret;
last_isspace = 0;
break;
case LOG_FMT_DATELOCAL: // %Tl
get_localtime(s->logs.accept_date.tv_sec, &tm);
ret = localdate2str_log(tmplog, &tm, dst + maxsize - tmplog);
if (ret == NULL)
goto out;
tmplog = ret;
last_isspace = 0;
break;
case LOG_FMT_TS: // %Ts
get_gmtime(s->logs.accept_date.tv_sec, &tm);
if (tmp->options & LOG_OPT_HEXA) {
iret = snprintf(tmplog, dst + maxsize - tmplog, "%04X", (unsigned int)s->logs.accept_date.tv_sec);
if (iret < 0 || iret > dst + maxsize - tmplog)
goto out;
last_isspace = 0;
tmplog += iret;
} else {
ret = ltoa_o(s->logs.accept_date.tv_sec, tmplog, dst + maxsize - tmplog);
if (ret == NULL)
goto out;
tmplog = ret;
last_isspace = 0;
}
break;
case LOG_FMT_MS: // %ms
if (tmp->options & LOG_OPT_HEXA) {
iret = snprintf(tmplog, dst + maxsize - tmplog, "%02X",(unsigned int)s->logs.accept_date.tv_usec/1000);
if (iret < 0 || iret > dst + maxsize - tmplog)
goto out;
last_isspace = 0;
tmplog += iret;
} else {
if ((dst + maxsize - tmplog) < 4)
goto out;
ret = utoa_pad((unsigned int)s->logs.accept_date.tv_usec/1000,
tmplog, 4);
if (ret == NULL)
goto out;
tmplog = ret;
last_isspace = 0;
}
break;
case LOG_FMT_FRONTEND: // %f
src = fe->id;
ret = lf_text(tmplog, src, dst + maxsize - tmplog, tmp);
if (ret == NULL)
goto out;
tmplog = ret;
last_isspace = 0;
break;
case LOG_FMT_FRONTEND_XPRT: // %ft
src = fe->id;
if (tmp->options & LOG_OPT_QUOTE)
LOGCHAR('"');
iret = strlcpy2(tmplog, src, dst + maxsize - tmplog);
if (iret == 0)
goto out;
tmplog += iret;
#ifdef USE_OPENSSL
if (sess->listener->xprt == &ssl_sock)
LOGCHAR('~');
#endif
if (tmp->options & LOG_OPT_QUOTE)
LOGCHAR('"');
last_isspace = 0;
break;
#ifdef USE_OPENSSL
case LOG_FMT_SSL_CIPHER: // %sslc
src = NULL;
conn = objt_conn(sess->origin);
if (conn) {
if (sess->listener->xprt == &ssl_sock)
src = ssl_sock_get_cipher_name(conn);
}
ret = lf_text(tmplog, src, dst + maxsize - tmplog, tmp);
if (ret == NULL)
goto out;
tmplog = ret;
last_isspace = 0;
break;
case LOG_FMT_SSL_VERSION: // %sslv
src = NULL;
conn = objt_conn(sess->origin);
if (conn) {
if (sess->listener->xprt == &ssl_sock)
src = ssl_sock_get_proto_version(conn);
}
ret = lf_text(tmplog, src, dst + maxsize - tmplog, tmp);
if (ret == NULL)
goto out;
tmplog = ret;
last_isspace = 0;
break;
#endif
case LOG_FMT_BACKEND: // %b
src = be->id;
ret = lf_text(tmplog, src, dst + maxsize - tmplog, tmp);
if (ret == NULL)
goto out;
tmplog = ret;
last_isspace = 0;
break;
case LOG_FMT_SERVER: // %s
switch (obj_type(s->target)) {
case OBJ_TYPE_SERVER:
src = objt_server(s->target)->id;
break;
case OBJ_TYPE_APPLET:
src = objt_applet(s->target)->name;
break;
default:
src = "<NOSRV>";
break;
}
ret = lf_text(tmplog, src, dst + maxsize - tmplog, tmp);
if (ret == NULL)
goto out;
tmplog = ret;
last_isspace = 0;
break;
case LOG_FMT_TQ: // %Tq
ret = ltoa_o(t_request, tmplog, dst + maxsize - tmplog);
if (ret == NULL)
goto out;
tmplog = ret;
last_isspace = 0;
break;
case LOG_FMT_TW: // %Tw
ret = ltoa_o((s->logs.t_queue >= 0) ? s->logs.t_queue - t_request : -1,
tmplog, dst + maxsize - tmplog);
if (ret == NULL)
goto out;
tmplog = ret;
last_isspace = 0;
break;
case LOG_FMT_TC: // %Tc
ret = ltoa_o((s->logs.t_connect >= 0) ? s->logs.t_connect - s->logs.t_queue : -1,
tmplog, dst + maxsize - tmplog);
if (ret == NULL)
goto out;
tmplog = ret;
last_isspace = 0;
break;
case LOG_FMT_TR: // %Tr
ret = ltoa_o((s->logs.t_data >= 0) ? s->logs.t_data - s->logs.t_connect : -1,
tmplog, dst + maxsize - tmplog);
if (ret == NULL)
goto out;
tmplog = ret;
last_isspace = 0;
break;
case LOG_FMT_TT: // %Tt
if (!(fe->to_log & LW_BYTES))
LOGCHAR('+');
ret = ltoa_o(s->logs.t_close, tmplog, dst + maxsize - tmplog);
if (ret == NULL)
goto out;
tmplog = ret;
last_isspace = 0;
break;
case LOG_FMT_STATUS: // %ST
ret = ltoa_o(txn->status, tmplog, dst + maxsize - tmplog);
if (ret == NULL)
goto out;
tmplog = ret;
last_isspace = 0;
break;
case LOG_FMT_BYTES: // %B
if (!(fe->to_log & LW_BYTES))
LOGCHAR('+');
ret = lltoa(s->logs.bytes_out, tmplog, dst + maxsize - tmplog);
if (ret == NULL)
goto out;
tmplog = ret;
last_isspace = 0;
break;
case LOG_FMT_BYTES_UP: // %U
ret = lltoa(s->logs.bytes_in, tmplog, dst + maxsize - tmplog);
if (ret == NULL)
goto out;
tmplog = ret;
last_isspace = 0;
break;
case LOG_FMT_CCLIENT: // %CC
src = txn->cli_cookie;
ret = lf_text(tmplog, src, dst + maxsize - tmplog, tmp);
if (ret == NULL)
goto out;
tmplog = ret;
last_isspace = 0;
break;
case LOG_FMT_CSERVER: // %CS
src = txn->srv_cookie;
ret = lf_text(tmplog, src, dst + maxsize - tmplog, tmp);
if (ret == NULL)
goto out;
tmplog = ret;
last_isspace = 0;
break;
case LOG_FMT_TERMSTATE: // %ts
LOGCHAR(sess_term_cond[(s->flags & SF_ERR_MASK) >> SF_ERR_SHIFT]);
LOGCHAR(sess_fin_state[(s->flags & SF_FINST_MASK) >> SF_FINST_SHIFT]);
*tmplog = '\0';
last_isspace = 0;
break;
case LOG_FMT_TERMSTATE_CK: // %tsc, same as TS with cookie state (for mode HTTP)
LOGCHAR(sess_term_cond[(s->flags & SF_ERR_MASK) >> SF_ERR_SHIFT]);
LOGCHAR(sess_fin_state[(s->flags & SF_FINST_MASK) >> SF_FINST_SHIFT]);
LOGCHAR((be->ck_opts & PR_CK_ANY) ? sess_cookie[(txn->flags & TX_CK_MASK) >> TX_CK_SHIFT] : '-');
LOGCHAR((be->ck_opts & PR_CK_ANY) ? sess_set_cookie[(txn->flags & TX_SCK_MASK) >> TX_SCK_SHIFT] : '-');
last_isspace = 0;
break;
case LOG_FMT_ACTCONN: // %ac
ret = ltoa_o(actconn, tmplog, dst + maxsize - tmplog);
if (ret == NULL)
goto out;
tmplog = ret;
last_isspace = 0;
break;
case LOG_FMT_FECONN: // %fc
ret = ltoa_o(fe->feconn, tmplog, dst + maxsize - tmplog);
if (ret == NULL)
goto out;
tmplog = ret;
last_isspace = 0;
break;
case LOG_FMT_BECONN: // %bc
ret = ltoa_o(be->beconn, tmplog, dst + maxsize - tmplog);
if (ret == NULL)
goto out;
tmplog = ret;
last_isspace = 0;
break;
case LOG_FMT_SRVCONN: // %sc
ret = ultoa_o(objt_server(s->target) ?
objt_server(s->target)->cur_sess :
0, tmplog, dst + maxsize - tmplog);
if (ret == NULL)
goto out;
tmplog = ret;
last_isspace = 0;
break;
case LOG_FMT_RETRIES: // %rq
if (s->flags & SF_REDISP)
LOGCHAR('+');
ret = ltoa_o((s->si[1].conn_retries>0) ?
(be->conn_retries - s->si[1].conn_retries) :
be->conn_retries, tmplog, dst + maxsize - tmplog);
if (ret == NULL)
goto out;
tmplog = ret;
last_isspace = 0;
break;
case LOG_FMT_SRVQUEUE: // %sq
ret = ltoa_o(s->logs.srv_queue_size, tmplog, dst + maxsize - tmplog);
if (ret == NULL)
goto out;
tmplog = ret;
last_isspace = 0;
break;
case LOG_FMT_BCKQUEUE: // %bq
ret = ltoa_o(s->logs.prx_queue_size, tmplog, dst + maxsize - tmplog);
if (ret == NULL)
goto out;
tmplog = ret;
last_isspace = 0;
break;
case LOG_FMT_HDRREQUEST: // %hr
/* request header */
if (fe->nb_req_cap && s->req_cap) {
if (tmp->options & LOG_OPT_QUOTE)
LOGCHAR('"');
LOGCHAR('{');
for (hdr = 0; hdr < fe->nb_req_cap; hdr++) {
if (hdr)
LOGCHAR('|');
if (s->req_cap[hdr] != NULL) {
ret = encode_string(tmplog, dst + maxsize,
'#', hdr_encode_map, s->req_cap[hdr]);
if (ret == NULL || *ret != '\0')
goto out;
tmplog = ret;
}
}
LOGCHAR('}');
if (tmp->options & LOG_OPT_QUOTE)
LOGCHAR('"');
last_isspace = 0;
}
break;
case LOG_FMT_HDRREQUESTLIST: // %hrl
/* request header list */
if (fe->nb_req_cap && s->req_cap) {
for (hdr = 0; hdr < fe->nb_req_cap; hdr++) {
if (hdr > 0)
LOGCHAR(' ');
if (tmp->options & LOG_OPT_QUOTE)
LOGCHAR('"');
if (s->req_cap[hdr] != NULL) {
ret = encode_string(tmplog, dst + maxsize,
'#', hdr_encode_map, s->req_cap[hdr]);
if (ret == NULL || *ret != '\0')
goto out;
tmplog = ret;
} else if (!(tmp->options & LOG_OPT_QUOTE))
LOGCHAR('-');
if (tmp->options & LOG_OPT_QUOTE)
LOGCHAR('"');
last_isspace = 0;
}
}
break;
case LOG_FMT_HDRRESPONS: // %hs
/* response header */
if (fe->nb_rsp_cap && s->res_cap) {
if (tmp->options & LOG_OPT_QUOTE)
LOGCHAR('"');
LOGCHAR('{');
for (hdr = 0; hdr < fe->nb_rsp_cap; hdr++) {
if (hdr)
LOGCHAR('|');
if (s->res_cap[hdr] != NULL) {
ret = encode_string(tmplog, dst + maxsize,
'#', hdr_encode_map, s->res_cap[hdr]);
if (ret == NULL || *ret != '\0')
goto out;
tmplog = ret;
}
}
LOGCHAR('}');
last_isspace = 0;
if (tmp->options & LOG_OPT_QUOTE)
LOGCHAR('"');
}
break;
case LOG_FMT_HDRRESPONSLIST: // %hsl
/* response header list */
if (fe->nb_rsp_cap && s->res_cap) {
for (hdr = 0; hdr < fe->nb_rsp_cap; hdr++) {
if (hdr > 0)
LOGCHAR(' ');
if (tmp->options & LOG_OPT_QUOTE)
LOGCHAR('"');
if (s->res_cap[hdr] != NULL) {
ret = encode_string(tmplog, dst + maxsize,
'#', hdr_encode_map, s->res_cap[hdr]);
if (ret == NULL || *ret != '\0')
goto out;
tmplog = ret;
} else if (!(tmp->options & LOG_OPT_QUOTE))
LOGCHAR('-');
if (tmp->options & LOG_OPT_QUOTE)
LOGCHAR('"');
last_isspace = 0;
}
}
break;
case LOG_FMT_REQ: // %r
/* Request */
if (tmp->options & LOG_OPT_QUOTE)
LOGCHAR('"');
uri = txn->uri ? txn->uri : "<BADREQ>";
ret = encode_string(tmplog, dst + maxsize,
'#', url_encode_map, uri);
if (ret == NULL || *ret != '\0')
goto out;
tmplog = ret;
if (tmp->options & LOG_OPT_QUOTE)
LOGCHAR('"');
last_isspace = 0;
break;
case LOG_FMT_HTTP_PATH: // %HP
uri = txn->uri ? txn->uri : "<BADREQ>";
if (tmp->options && LOG_OPT_QUOTE)
LOGCHAR('"');
end = uri + strlen(uri);
// look for the first whitespace character
while (uri < end && !HTTP_IS_SPHT(*uri))
uri++;
// keep advancing past multiple spaces
while (uri < end && HTTP_IS_SPHT(*uri)) {
uri++; nspaces++;
}
// look for first space or question mark after url
spc = uri;
while (spc < end && *spc != '?' && !HTTP_IS_SPHT(*spc))
spc++;
if (!txn->uri || nspaces == 0) {
chunk.str = "<BADREQ>";
chunk.len = strlen("<BADREQ>");
} else {
chunk.str = uri;
chunk.len = spc - uri;
}
ret = encode_chunk(tmplog, dst + maxsize, '#', url_encode_map, &chunk);
if (ret == NULL || *ret != '\0')
goto out;
tmplog = ret;
if (tmp->options && LOG_OPT_QUOTE)
LOGCHAR('"');
last_isspace = 0;
break;
case LOG_FMT_HTTP_URI: // %HU
uri = txn->uri ? txn->uri : "<BADREQ>";
if (tmp->options && LOG_OPT_QUOTE)
LOGCHAR('"');
end = uri + strlen(uri);
// look for the first whitespace character
while (uri < end && !HTTP_IS_SPHT(*uri))
uri++;
// keep advancing past multiple spaces
while (uri < end && HTTP_IS_SPHT(*uri)) {
uri++; nspaces++;
}
// look for first space after url
spc = uri;
while (spc < end && !HTTP_IS_SPHT(*spc))
spc++;
if (!txn->uri || nspaces == 0) {
chunk.str = "<BADREQ>";
chunk.len = strlen("<BADREQ>");
} else {
chunk.str = uri;
chunk.len = spc - uri;
}
ret = encode_chunk(tmplog, dst + maxsize, '#', url_encode_map, &chunk);
if (ret == NULL || *ret != '\0')
goto out;
tmplog = ret;
if (tmp->options && LOG_OPT_QUOTE)
LOGCHAR('"');
last_isspace = 0;
break;
case LOG_FMT_HTTP_METHOD: // %HM
uri = txn->uri ? txn->uri : "<BADREQ>";
if (tmp->options && LOG_OPT_QUOTE)
LOGCHAR('"');
end = uri + strlen(uri);
// look for the first whitespace character
spc = uri;
while (spc < end && !HTTP_IS_SPHT(*spc))
spc++;
if (spc == end) { // odd case, we have txn->uri, but we only got a verb
chunk.str = "<BADREQ>";
chunk.len = strlen("<BADREQ>");
} else {
chunk.str = uri;
chunk.len = spc - uri;
}
ret = encode_chunk(tmplog, dst + maxsize, '#', url_encode_map, &chunk);
if (ret == NULL || *ret != '\0')
goto out;
tmplog = ret;
if (tmp->options && LOG_OPT_QUOTE)
LOGCHAR('"');
last_isspace = 0;
break;
case LOG_FMT_HTTP_VERSION: // %HV
uri = txn->uri ? txn->uri : "<BADREQ>";
if (tmp->options && LOG_OPT_QUOTE)
LOGCHAR('"');
end = uri + strlen(uri);
// look for the first whitespace character
while (uri < end && !HTTP_IS_SPHT(*uri))
uri++;
// keep advancing past multiple spaces
while (uri < end && HTTP_IS_SPHT(*uri)) {
uri++; nspaces++;
}
// look for the next whitespace character
while (uri < end && !HTTP_IS_SPHT(*uri))
uri++;
// keep advancing past multiple spaces
while (uri < end && HTTP_IS_SPHT(*uri))
uri++;
if (!txn->uri || nspaces == 0) {
chunk.str = "<BADREQ>";
chunk.len = strlen("<BADREQ>");
} else if (uri == end) {
chunk.str = "HTTP/0.9";
chunk.len = strlen("HTTP/0.9");
} else {
chunk.str = uri;
chunk.len = end - uri;
}
ret = encode_chunk(tmplog, dst + maxsize, '#', url_encode_map, &chunk);
if (ret == NULL || *ret != '\0')
goto out;
tmplog = ret;
if (tmp->options && LOG_OPT_QUOTE)
LOGCHAR('"');
last_isspace = 0;
break;
case LOG_FMT_COUNTER: // %rt
if (tmp->options & LOG_OPT_HEXA) {
iret = snprintf(tmplog, dst + maxsize - tmplog, "%04X", s->uniq_id);
if (iret < 0 || iret > dst + maxsize - tmplog)
goto out;
last_isspace = 0;
tmplog += iret;
} else {
ret = ltoa_o(s->uniq_id, tmplog, dst + maxsize - tmplog);
if (ret == NULL)
goto out;
tmplog = ret;
last_isspace = 0;
}
break;
case LOG_FMT_LOGCNT: // %lc
if (tmp->options & LOG_OPT_HEXA) {
iret = snprintf(tmplog, dst + maxsize - tmplog, "%04X", fe->log_count);
if (iret < 0 || iret > dst + maxsize - tmplog)
goto out;
last_isspace = 0;
tmplog += iret;
} else {
ret = ultoa_o(fe->log_count, tmplog, dst + maxsize - tmplog);
if (ret == NULL)
goto out;
tmplog = ret;
last_isspace = 0;
}
break;
case LOG_FMT_HOSTNAME: // %H
src = hostname;
ret = lf_text(tmplog, src, dst + maxsize - tmplog, tmp);
if (ret == NULL)
goto out;
tmplog = ret;
last_isspace = 0;
break;
case LOG_FMT_PID: // %pid
if (tmp->options & LOG_OPT_HEXA) {
iret = snprintf(tmplog, dst + maxsize - tmplog, "%04X", pid);
if (iret < 0 || iret > dst + maxsize - tmplog)
goto out;
last_isspace = 0;
tmplog += iret;
} else {
ret = ltoa_o(pid, tmplog, dst + maxsize - tmplog);
if (ret == NULL)
goto out;
tmplog = ret;
last_isspace = 0;
}
break;
case LOG_FMT_UNIQUEID: // %ID
ret = NULL;
src = s->unique_id;
ret = lf_text(tmplog, src, maxsize - (tmplog - dst), tmp);
if (ret == NULL)
goto out;
tmplog = ret;
last_isspace = 0;
break;
}
}
out:
/* *tmplog is a unused character */
*tmplog = '\0';
return tmplog - dst;
}
/*
* send a log for the stream when we have enough info about it.
* Will not log if the frontend has no log defined.
*/
void strm_log(struct stream *s)
{
struct session *sess = s->sess;
char *tmplog;
int size, err, level;
/* if we don't want to log normal traffic, return now */
err = (s->flags & SF_REDISP) ||
((s->flags & SF_ERR_MASK) > SF_ERR_LOCAL) ||
(((s->flags & SF_ERR_MASK) == SF_ERR_NONE) &&
(s->si[1].conn_retries != s->be->conn_retries)) ||
((sess->fe->mode == PR_MODE_HTTP) && s->txn && s->txn->status >= 500);
if (!err && (sess->fe->options2 & PR_O2_NOLOGNORM))
return;
if (LIST_ISEMPTY(&sess->fe->logsrvs))
return;
if (s->logs.level) { /* loglevel was overridden */
if (s->logs.level == -1) {
s->logs.logwait = 0; /* logs disabled */
return;
}
level = s->logs.level - 1;
}
else {
level = LOG_INFO;
if (err && (sess->fe->options2 & PR_O2_LOGERRORS))
level = LOG_ERR;
}
/* if unique-id was not generated */
if (!s->unique_id && !LIST_ISEMPTY(&sess->fe->format_unique_id)) {
if ((s->unique_id = pool_alloc2(pool2_uniqueid)) != NULL)
build_logline(s, s->unique_id, UNIQUEID_LEN, &sess->fe->format_unique_id);
}
tmplog = update_log_hdr(sess->fe->log_tag ? sess->fe->log_tag : global.log_tag);
size = tmplog - logline;
size += build_logline(s, tmplog, global.max_syslog_len - size, &sess->fe->logformat);
if (size > 0) {
sess->fe->log_count++;
__send_log(sess->fe, level, logline, size + 1);
s->logs.logwait = 0;
}
}
/*
* Local variables:
* c-indent-level: 8
* c-basic-offset: 8
* End:
*/
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