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haproxy/src/log.c
Willy Tarreau a261e9b094 CLEANUP: connection: remove all direct references to raw_sock and ssl_sock 
Now we exclusively use xprt_get(XPRT_RAW) instead of &raw_sock or
xprt_get(XPRT_SSL) for &ssl_sock. This removes a bunch of #ifdef and
include spread over a number of location including backend, cfgparse,
checks, cli, hlua, log, server and session.
2016-12-22 23:26:38 +01:00

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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 <sys/uio.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
struct log_fmt {
char *name;
struct {
struct chunk sep1; /* first pid separator */
struct chunk sep2; /* second pid separator */
} pid;
};
static const struct log_fmt log_formats[LOG_FORMATS] = {
[LOG_FORMAT_RFC3164] = {
.name = "rfc3164",
.pid = {
.sep1 = { .str = "[", .len = 1 },
.sep2 = { .str = "]: ", .len = 3 }
}
},
[LOG_FORMAT_RFC5424] = {
.name = "rfc5424",
.pid = {
.sep1 = { .str = " ", .len = 1 },
.sep2 = { .str = " - ", .len = 3 }
}
}
};
#define FD_SETS_ARE_BITFIELDS
#ifdef FD_SETS_ARE_BITFIELDS
/*
* This map is used with all the FD_* macros to check whether a particular bit
* is set or not. Each bit represents an ACSII code. FD_SET() sets those bytes
* which should be escaped. When FD_ISSET() returns non-zero, it means that the
* byte should be escaped. Be careful to always pass bytes from 0 to 255
* exclusively to the macros.
*/
fd_set rfc5424_escape_map[(sizeof(fd_set) > (256/8)) ? 1 : ((256/8) / sizeof(fd_set))];
#else
#error "Check if your OS uses bitfields for fd_sets"
#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 */
{ "Ta", LOG_FMT_Ta, PR_MODE_HTTP, LW_BYTES, NULL }, /* Time active (tr to end) */
{ "Tc", LOG_FMT_TC, PR_MODE_TCP, LW_BYTES, NULL }, /* Tc */
{ "Th", LOG_FMT_Th, PR_MODE_TCP, LW_BYTES, NULL }, /* Time handshake */
{ "Ti", LOG_FMT_Ti, PR_MODE_HTTP, LW_BYTES, NULL }, /* Time idle */
{ "Tl", LOG_FMT_DATELOCAL, PR_MODE_TCP, LW_INIT, NULL }, /* date local timezone */
{ "Tq", LOG_FMT_TQ, PR_MODE_HTTP, LW_BYTES, NULL }, /* Tq=Th+Ti+TR */
{ "Tr", LOG_FMT_Tr, PR_MODE_HTTP, LW_BYTES, NULL }, /* Tr */
{ "TR", LOG_FMT_TR, PR_MODE_HTTP, LW_BYTES, NULL }, /* Time to receive a valid request */
{ "Td", LOG_FMT_TD, PR_MODE_TCP, LW_BYTES, NULL }, /* Td = Tt - (Tq + Tw + Tc + 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 */
{ "HQ", LOG_FMT_HTTP_QUERY, PR_MODE_HTTP, LW_REQ, NULL }, /* HTTP query */
{ "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 */
{ "tr", LOG_FMT_tr, PR_MODE_HTTP, LW_INIT, NULL }, /* date of start of request */
{ "trg",LOG_FMT_trg, PR_MODE_HTTP, LW_INIT, NULL }, /* date of start of request, GMT */
{ "trl",LOG_FMT_trl, PR_MODE_HTTP, LW_INIT, NULL }, /* date of start of request, local */
{ "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 [%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
char 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";
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;
/* Default string used for structured-data part in RFC5424 formatted
* syslog messages.
*/
char default_rfc5424_sd_log_format[] = "- ";
/* This is a global syslog header, common to all outgoing messages in
* RFC3164 format. It begins with time-based part and is updated by
* update_log_hdr().
*/
char *logheader = NULL;
/* This is a global syslog header for messages in RFC5424 format. It is
* updated by update_log_hdr_rfc5424().
*/
char *logheader_rfc5424 = NULL;
/* This is a global syslog message buffer, common to all outgoing
* messages. It contains only the data part.
*/
char *logline = NULL;
/* A global syslog message buffer, common to all RFC5424 syslog messages.
* Currently, it is used for generating the structured-data part.
*/
char *logline_rfc5424 = 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 },
{ "E", LOG_OPT_ESC },
{ 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_ACL:
return "acl";
case ARGC_STK:
return "stick";
case ARGC_TRK:
return "track-sc";
case ARGC_LOG:
return "log-format";
case ARGC_LOGSD:
return "log-format-sd";
case ARGC_HRQ:
return "http-request";
case ARGC_HRS:
return "http-response";
case ARGC_UIF:
return "unique-id-format";
case ARGC_RDR:
return "redirect";
case ARGC_CAP:
return "capture";
case ARGC_SRV:
return "server";
case ARGC_SPOE:
return "spoe-message";
case ARGC_UBK:
return "use_backend";
default:
return "undefined(please report this bug)"; /* must never happen */
}
}
/*
* 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. Returns 0 in error
* case, otherwise, it returns 1.
*/
int parse_logformat_var_args(char *args, struct logformat_node *node, char **err)
{
int i = 0;
int end = 0;
int flags = 0; // 1 = + 2 = -
char *sp = NULL; // start pointer
if (args == NULL) {
memprintf(err, "internal error: parse_logformat_var_args() expects non null 'args'");
return 0;
}
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 1;
}
/*
* 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.
* Returns false in error case and err is filled, otherwise returns true.
*/
int parse_logformat_var(char *arg, int arg_len, char *var, int var_len, struct proxy *curproxy, struct list *list_format, int *defoptions, char **err)
{
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(*node));
if (!node) {
memprintf(err, "out of memory error");
return 0;
}
node->type = logformat_keywords[j].type;
node->options = *defoptions;
if (arg_len) {
node->arg = my_strndup(arg, arg_len);
if (!parse_logformat_var_args(node->arg, node, err))
return 0;
}
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 0;
}
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 1;
} else {
memprintf(err, "format variable '%s' is reserved for HTTP mode",
logformat_keywords[j].name);
return 0;
}
}
}
j = var[var_len];
var[var_len] = 0;
memprintf(err, "no such format variable '%s'. If you wanted to emit the '%%' character verbatim, you need to use '%%%%'", var);
var[var_len] = j;
return 0;
}
/*
* 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.
*
*/
int add_to_logformat_list(char *start, char *end, int type, struct list *list_format, char **err)
{
char *str;
if (type == LF_TEXT) { /* type text */
struct logformat_node *node = calloc(1, sizeof(*node));
if (!node) {
memprintf(err, "out of memory error");
return 0;
}
str = calloc(1, end - start + 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(*node));
if (!node) {
memprintf(err, "out of memory error");
return 0;
}
node->type = LOG_FMT_SEPARATOR;
LIST_ADDQ(list_format, &node->list);
}
return 1;
}
/*
* 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.
*
* In error case, the function returns 0, otherwise it returns 1.
*/
int 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 *cmd[2];
struct sample_expr *expr;
struct logformat_node *node;
int cmd_arg;
cmd[0] = text;
cmd[1] = "";
cmd_arg = 0;
expr = sample_parse_expr(cmd, &cmd_arg, curpx->conf.args.file, curpx->conf.args.line, err, &curpx->conf.args);
if (!expr) {
memprintf(err, "failed to parse sample expression <%s> : %s", text, *err);
return 0;
}
node = calloc(1, sizeof(*node));
if (!node) {
memprintf(err, "out of memory error");
return 0;
}
node->type = LOG_FMT_EXPR;
node->expr = expr;
node->options = options;
if (arg_len) {
node->arg = my_strndup(arg, arg_len);
if (!parse_logformat_var_args(node->arg, node, err))
return 0;
}
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)) {
memprintf(err, "sample fetch <%s> may not be reliably used here because it needs '%s' which is not available here",
text, sample_src_names(expr->fetch->use));
return 0;
}
/* 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);
return 1;
}
/*
* 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
*
* The function returns 1 in success case, otherwise, it returns 0 and err is filled.
*/
int parse_logformat_string(const char *fmt, struct proxy *curproxy, struct list *list_format, int options, int cap, char **err)
{
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);
if (!str) {
memprintf(err, "out of memory error");
return 0;
}
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 */
memprintf(err, "unexpected variable name near '%c' at position %d line : '%s'. Maybe you want to write a simgle '%%', use the syntax '%%%%'",
*str, (int)(str - backfmt), fmt);
return 0;
}
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;
}
memprintf(err, "parse argument modifier without variable name near '%%{%s}'", arg);
return 0;
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:
if (!parse_logformat_var(arg, arg_len, var, var_len, curproxy, list_format, &options, err))
return 0;
break;
case LF_STEXPR:
if (!add_sample_to_logformat_list(var, arg, arg_len, curproxy, list_format, options, cap, err))
return 0;
break;
case LF_TEXT:
case LF_SEPARATOR:
if (!add_to_logformat_list(sp, str, pformat, list_format, err))
return 0;
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) {
memprintf(err, "truncated line after '%s'", var ? var : arg ? arg : "%");
return 0;
}
free(backfmt);
return 1;
}
/*
* 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 format for <fmt> or -1 if not found.
*/
int get_log_format(const char *fmt)
{
int format;
format = LOG_FORMATS - 1;
while (format >= 0 && strcmp(log_formats[format].name, fmt))
format--;
return format;
}
/*
* 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;
}
/*
* Encode the string.
*
* When using the +E log format option, it will try to escape '"\]'
* characters with '\' as prefix. The same prefix should not be used as
* <escape>.
*/
static char *lf_encode_string(char *start, char *stop,
const char escape, const fd_set *map,
const char *string,
struct logformat_node *node)
{
if (node->options & LOG_OPT_ESC) {
if (start < stop) {
stop--; /* reserve one byte for the final '\0' */
while (start < stop && *string != '\0') {
if (!FD_ISSET((unsigned char)(*string), map)) {
if (!FD_ISSET((unsigned char)(*string), rfc5424_escape_map))
*start++ = *string;
else {
if (start + 2 >= stop)
break;
*start++ = '\\';
*start++ = *string;
}
}
else {
if (start + 3 >= stop)
break;
*start++ = escape;
*start++ = hextab[(*string >> 4) & 15];
*start++ = hextab[*string & 15];
}
string++;
}
*start = '\0';
}
}
else {
return encode_string(start, stop, escape, map, string);
}
return start;
}
/*
* Encode the chunk.
*
* When using the +E log format option, it will try to escape '"\]'
* characters with '\' as prefix. The same prefix should not be used as
* <escape>.
*/
static char *lf_encode_chunk(char *start, char *stop,
const char escape, const fd_set *map,
const struct chunk *chunk,
struct logformat_node *node)
{
char *str, *end;
if (node->options & LOG_OPT_ESC) {
if (start < stop) {
str = chunk->str;
end = chunk->str + chunk->len;
stop--; /* reserve one byte for the final '\0' */
while (start < stop && str < end) {
if (!FD_ISSET((unsigned char)(*str), map)) {
if (!FD_ISSET((unsigned char)(*str), rfc5424_escape_map))
*start++ = *str;
else {
if (start + 2 >= stop)
break;
*start++ = '\\';
*start++ = *str;
}
}
else {
if (start + 3 >= stop)
break;
*start++ = escape;
*start++ = hextab[(*str >> 4) & 15];
*start++ = hextab[*str & 15];
}
str++;
}
*start = '\0';
}
}
else {
return encode_chunk(start, stop, escape, map, chunk);
}
return start;
}
/*
* Write a string in the log string
* Take cares of quote and escape 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;
if (node->options & LOG_OPT_ESC) {
char *ret;
ret = escape_string(dst, dst + len, '\\', rfc5424_escape_map, src);
if (ret == NULL || *ret != '\0')
return NULL;
len = ret - dst;
}
else {
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 time-based part of the syslog header in RFC3164 format at
* the beginning of logheader once a second and return the pointer to the
* first character after it.
*/
static char *update_log_hdr(const time_t time)
{
static long tvsec;
static char *dataptr = NULL; /* backup of last end of header, NULL first time */
static struct chunk host = { NULL, 0, 0 };
static int sep = 0;
if (unlikely(time != tvsec || dataptr == NULL)) {
/* this string is rebuild only once a second */
struct tm tm;
int hdr_len;
tvsec = time;
get_localtime(tvsec, &tm);
if (unlikely(global.log_send_hostname != host.str)) {
host.str = global.log_send_hostname;
host.len = host.str ? strlen(host.str) : 0;
sep = host.len ? 1 : 0;
}
hdr_len = snprintf(logheader, global.max_syslog_len,
"<<<<>%s %2d %02d:%02d:%02d %.*s%*s",
monthname[tm.tm_mon],
tm.tm_mday, tm.tm_hour, tm.tm_min, tm.tm_sec,
host.len, host.str, sep, "");
/* 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 = logheader + hdr_len;
}
dataptr[0] = 0; // ensure we get rid of any previous attempt
return dataptr;
}
/* Re-generate time-based part of the syslog header in RFC5424 format at
* the beginning of logheader_rfc5424 once a second and return the pointer
* to the first character after it.
*/
static char *update_log_hdr_rfc5424(const time_t time)
{
static long tvsec;
static char *dataptr = NULL; /* backup of last end of header, NULL first time */
const char *gmt_offset;
if (unlikely(time != tvsec || dataptr == NULL)) {
/* this string is rebuild only once a second */
struct tm tm;
int hdr_len;
tvsec = time;
get_localtime(tvsec, &tm);
gmt_offset = get_gmt_offset(time, &tm);
hdr_len = snprintf(logheader_rfc5424, global.max_syslog_len,
"<<<<>1 %4d-%02d-%02dT%02d:%02d:%02d%.3s:%.2s %s ",
tm.tm_year+1900, tm.tm_mon+1, tm.tm_mday,
tm.tm_hour, tm.tm_min, tm.tm_sec,
gmt_offset, gmt_offset+3,
global.log_send_hostname ? global.log_send_hostname : 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 = logheader_rfc5424 + hdr_len;
}
dataptr[0] = 0; // ensure we get rid of any previous attempt
return dataptr;
}
/*
* This function 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;
int data_len;
if (level < 0 || format == NULL || logline == NULL)
return;
va_start(argp, format);
data_len = vsnprintf(logline, global.max_syslog_len, 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, default_rfc5424_sd_log_format, 2);
}
/*
* This function sends a syslog message.
* It doesn't care about errors nor does it report them.
* It overrides the last byte of the message vector with an LF character.
* The arguments <sd> and <sd_size> are used for the structured-data part
* in RFC5424 formatted syslog messages.
*/
void __send_log(struct proxy *p, int level, char *message, size_t size, char *sd, size_t sd_size)
{
static struct iovec iovec[NB_MSG_IOVEC_ELEMENTS] = { };
static struct msghdr msghdr = {
.msg_iov = iovec,
.msg_iovlen = NB_MSG_IOVEC_ELEMENTS
};
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 *hdr, *hdr_ptr;
size_t hdr_size;
time_t time = date.tv_sec;
struct chunk *tag = &global.log_tag;
static int curr_pid;
static char pidstr[100];
static struct chunk pid;
dataptr = message;
if (p == NULL) {
if (!LIST_ISEMPTY(&global.logsrvs)) {
logsrvs = &global.logsrvs;
}
} else {
if (!LIST_ISEMPTY(&p->logsrvs)) {
logsrvs = &p->logsrvs;
}
if (p->log_tag.str) {
tag = &p->log_tag;
}
}
if (!logsrvs)
return;
if (unlikely(curr_pid != getpid())) {
curr_pid = getpid();
ltoa_o(curr_pid, pidstr, sizeof(pidstr));
chunk_initstr(&pid, pidstr);
}
/* 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;
char *pid_sep1 = NULL, *pid_sep2 = NULL;
int sent;
int maxlen;
int hdr_max = 0;
int tag_max = 0;
int pid_sep1_max = 0;
int pid_max = 0;
int pid_sep2_max = 0;
int sd_max = 0;
int max = 0;
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);
}
switch (logsrv->format) {
case LOG_FORMAT_RFC3164:
hdr = logheader;
hdr_ptr = update_log_hdr(time);
break;
case LOG_FORMAT_RFC5424:
hdr = logheader_rfc5424;
hdr_ptr = update_log_hdr_rfc5424(time);
sd_max = sd_size; /* the SD part allowed only in RFC5424 */
break;
default:
continue; /* must never happen */
}
hdr_size = hdr_ptr - hdr;
/* 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);
hdr_ptr = hdr + 3; /* last digit of the log level */
do {
*hdr_ptr = '0' + fac_level % 10;
fac_level /= 10;
hdr_ptr--;
} while (fac_level && hdr_ptr > hdr);
*hdr_ptr = '<';
hdr_max = hdr_size - (hdr_ptr - hdr);
/* time-based header */
if (unlikely(hdr_size >= logsrv->maxlen)) {
hdr_max = MIN(hdr_max, logsrv->maxlen) - 1;
sd_max = 0;
goto send;
}
maxlen = logsrv->maxlen - hdr_max;
/* tag */
tag_max = tag->len;
if (unlikely(tag_max >= maxlen)) {
tag_max = maxlen - 1;
sd_max = 0;
goto send;
}
maxlen -= tag_max;
/* first pid separator */
pid_sep1_max = log_formats[logsrv->format].pid.sep1.len;
if (unlikely(pid_sep1_max >= maxlen)) {
pid_sep1_max = maxlen - 1;
sd_max = 0;
goto send;
}
pid_sep1 = log_formats[logsrv->format].pid.sep1.str;
maxlen -= pid_sep1_max;
/* pid */
pid_max = pid.len;
if (unlikely(pid_max >= maxlen)) {
pid_max = maxlen - 1;
sd_max = 0;
goto send;
}
maxlen -= pid_max;
/* second pid separator */
pid_sep2_max = log_formats[logsrv->format].pid.sep2.len;
if (unlikely(pid_sep2_max >= maxlen)) {
pid_sep2_max = maxlen - 1;
sd_max = 0;
goto send;
}
pid_sep2 = log_formats[logsrv->format].pid.sep2.str;
maxlen -= pid_sep2_max;
/* structured-data */
if (sd_max >= maxlen) {
sd_max = maxlen - 1;
goto send;
}
max = MIN(size, maxlen - sd_max) - 1;
send:
iovec[0].iov_base = hdr_ptr;
iovec[0].iov_len = hdr_max;
iovec[1].iov_base = tag->str;
iovec[1].iov_len = tag_max;
iovec[2].iov_base = pid_sep1;
iovec[2].iov_len = pid_sep1_max;
iovec[3].iov_base = pid.str;
iovec[3].iov_len = pid_max;
iovec[4].iov_base = pid_sep2;
iovec[4].iov_len = pid_sep2_max;
iovec[5].iov_base = sd;
iovec[5].iov_len = sd_max;
iovec[6].iov_base = dataptr;
iovec[6].iov_len = max;
iovec[7].iov_base = "\n"; /* insert a \n at the end of the message */
iovec[7].iov_len = 1;
msghdr.msg_name = (struct sockaddr *)&logsrv->addr;
msghdr.msg_namelen = get_addr_len(&logsrv->addr);
sent = sendmsg(*plogfd, &msghdr, MSG_DONTWAIT | MSG_NOSIGNAL);
if (sent < 0) {
Alert("sendmsg 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)
/* Initializes some log data.
*/
void init_log()
{
char *tmp;
/* Initialize the escape map for the RFC5424 structured-data : '"\]'
* inside PARAM-VALUE should be escaped with '\' as prefix.
* See https://tools.ietf.org/html/rfc5424#section-6.3.3 for more
* details.
*/
memset(rfc5424_escape_map, 0, sizeof(rfc5424_escape_map));
tmp = "\"\\]";
while (*tmp) {
FD_SET(*tmp, rfc5424_escape_map);
tmp++;
}
}
/* 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 *qmark;
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;
struct timeval tv;
/* 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_as_type(be, sess, s, SMP_OPT_DIR_REQ|SMP_OPT_FINAL, tmp->expr, SMP_T_STR);
if (!key && (tmp->options & LOG_OPT_RES_CAP))
key = sample_fetch_as_type(be, sess, s, SMP_OPT_DIR_RES|SMP_OPT_FINAL, tmp->expr, SMP_T_STR);
if (tmp->options & LOG_OPT_HTTP)
ret = lf_encode_chunk(tmplog, dst + maxsize,
'%', http_encode_map, key ? &key->data.u.str : &empty, tmp);
else
ret = lf_text_len(tmplog, key ? key->data.u.str.str : NULL, key ? key->data.u.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 = accept date
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_tr: // %tr = start of request date
/* Note that the timers are valid if we get here */
tv_ms_add(&tv, &s->logs.accept_date, s->logs.t_idle >= 0 ? s->logs.t_idle + s->logs.t_handshake : 0);
get_localtime(tv.tv_sec, &tm);
ret = date2str_log(tmplog, &tm, &tv, dst + maxsize - tmplog);
if (ret == NULL)
goto out;
tmplog = ret;
last_isspace = 0;
break;
case LOG_FMT_DATEGMT: // %T = accept date, GMT
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_trg: // %trg = start of request date, GMT
tv_ms_add(&tv, &s->logs.accept_date, s->logs.t_idle >= 0 ? s->logs.t_idle + s->logs.t_handshake : 0);
get_gmtime(tv.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 = accept date, local
get_localtime(s->logs.accept_date.tv_sec, &tm);
ret = localdate2str_log(tmplog, s->logs.accept_date.tv_sec, &tm, dst + maxsize - tmplog);
if (ret == NULL)
goto out;
tmplog = ret;
last_isspace = 0;
break;
case LOG_FMT_trl: // %trl = start of request date, local
tv_ms_add(&tv, &s->logs.accept_date, s->logs.t_idle >= 0 ? s->logs.t_idle + s->logs.t_handshake : 0);
get_localtime(tv.tv_sec, &tm);
ret = localdate2str_log(tmplog, tv.tv_sec, &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;
if (sess->listener->bind_conf->xprt == xprt_get(XPRT_SSL))
LOGCHAR('~');
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->bind_conf->xprt == xprt_get(XPRT_SSL))
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->bind_conf->xprt == xprt_get(XPRT_SSL))
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_Th: // %Th = handshake time
ret = ltoa_o(s->logs.t_handshake, tmplog, dst + maxsize - tmplog);
if (ret == NULL)
goto out;
tmplog = ret;
last_isspace = 0;
break;
case LOG_FMT_Ti: // %Ti = HTTP idle time
ret = ltoa_o(s->logs.t_idle, tmplog, dst + maxsize - tmplog);
if (ret == NULL)
goto out;
tmplog = ret;
last_isspace = 0;
break;
case LOG_FMT_TR: // %TR = HTTP request time
ret = ltoa_o((t_request >= 0) ? t_request - s->logs.t_idle - s->logs.t_handshake : -1,
tmplog, dst + maxsize - tmplog);
if (ret == NULL)
goto out;
tmplog = ret;
last_isspace = 0;
break;
case LOG_FMT_TQ: // %Tq = Th + Ti + TR
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_TD: // %Td
if (s->be->mode == PR_MODE_HTTP)
ret = ltoa_o((s->logs.t_data >= 0) ? s->logs.t_close - s->logs.t_data : -1,
tmplog, dst + maxsize - tmplog);
else
ret = ltoa_o((s->logs.t_connect >= 0) ? s->logs.t_close - s->logs.t_connect : -1,
tmplog, dst + maxsize - tmplog);
if (ret == NULL)
goto out;
tmplog = ret;
last_isspace = 0;
break;
case LOG_FMT_Ta: // %Ta = active time = Tt - Th - Ti
if (!(fe->to_log & LW_BYTES))
LOGCHAR('+');
ret = ltoa_o(s->logs.t_close - (s->logs.t_idle >= 0 ? s->logs.t_idle + s->logs.t_handshake : 0),
tmplog, dst + maxsize - tmplog);
if (ret == NULL)
goto out;
tmplog = ret;
last_isspace = 0;
break;
case LOG_FMT_TT: // %Tt = total time
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 ? txn->status : 0, 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 ? txn->cli_cookie : NULL;
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 ? txn->srv_cookie : NULL;
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((txn && (be->ck_opts & PR_CK_ANY)) ? sess_cookie[(txn->flags & TX_CK_MASK) >> TX_CK_SHIFT] : '-');
LOGCHAR((txn && (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 = lf_encode_string(tmplog, dst + maxsize,
'#', hdr_encode_map, s->req_cap[hdr], tmp);
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 = lf_encode_string(tmplog, dst + maxsize,
'#', hdr_encode_map, s->req_cap[hdr], tmp);
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 = lf_encode_string(tmplog, dst + maxsize,
'#', hdr_encode_map, s->res_cap[hdr], tmp);
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 = lf_encode_string(tmplog, dst + maxsize,
'#', hdr_encode_map, s->res_cap[hdr], tmp);
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 && txn->uri ? txn->uri : "<BADREQ>";
ret = lf_encode_string(tmplog, dst + maxsize,
'#', url_encode_map, uri, tmp);
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 && 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 || !txn->uri || nspaces == 0) {
chunk.str = "<BADREQ>";
chunk.len = strlen("<BADREQ>");
} else {
chunk.str = uri;
chunk.len = spc - uri;
}
ret = lf_encode_chunk(tmplog, dst + maxsize, '#', url_encode_map, &chunk, tmp);
if (ret == NULL || *ret != '\0')
goto out;
tmplog = ret;
if (tmp->options & LOG_OPT_QUOTE)
LOGCHAR('"');
last_isspace = 0;
break;
case LOG_FMT_HTTP_QUERY: // %HQ
if (tmp->options & LOG_OPT_QUOTE)
LOGCHAR('"');
if (!txn || !txn->uri) {
chunk.str = "<BADREQ>";
chunk.len = strlen("<BADREQ>");
} else {
uri = txn->uri;
end = uri + strlen(uri);
// look for the first question mark
while (uri < end && *uri != '?')
uri++;
qmark = uri;
// look for first space or question mark after url
while (uri < end && !HTTP_IS_SPHT(*uri))
uri++;
chunk.str = qmark;
chunk.len = uri - qmark;
}
ret = lf_encode_chunk(tmplog, dst + maxsize, '#', url_encode_map, &chunk, tmp);
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 && 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 || !txn->uri || nspaces == 0) {
chunk.str = "<BADREQ>";
chunk.len = strlen("<BADREQ>");
} else {
chunk.str = uri;
chunk.len = spc - uri;
}
ret = lf_encode_chunk(tmplog, dst + maxsize, '#', url_encode_map, &chunk, tmp);
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 && 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 = lf_encode_chunk(tmplog, dst + maxsize, '#', url_encode_map, &chunk, tmp);
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 && 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 || !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 = lf_encode_chunk(tmplog, dst + maxsize, '#', url_encode_map, &chunk, tmp);
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;
int size, err, level;
int sd_size = 0;
/* 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);
}
if (!LIST_ISEMPTY(&sess->fe->logformat_sd)) {
sd_size = build_logline(s, logline_rfc5424, global.max_syslog_len,
&sess->fe->logformat_sd);
}
size = build_logline(s, logline, global.max_syslog_len, &sess->fe->logformat);
if (size > 0) {
sess->fe->log_count++;
__send_log(sess->fe, level, logline, size + 1, logline_rfc5424, sd_size);
s->logs.logwait = 0;
}
}
/*
* Local variables:
* c-indent-level: 8
* c-basic-offset: 8
* End:
*/
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