blob: b3d49bfe1861035ced2760ed6921b8c832ce1233 [file] [log] [blame]
/*
* Functions dedicated to statistics output and the stats socket
*
* Copyright 2000-2012 Willy Tarreau <w@1wt.eu>
* Copyright 2007-2009 Krzysztof Piotr Oledzki <ole@ans.pl>
*
* 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 <errno.h>
#include <fcntl.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <pwd.h>
#include <grp.h>
#include <sys/socket.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <common/cfgparse.h>
#include <common/compat.h>
#include <common/config.h>
#include <common/debug.h>
#include <common/memory.h>
#include <common/mini-clist.h>
#include <common/standard.h>
#include <common/ticks.h>
#include <common/time.h>
#include <common/uri_auth.h>
#include <common/version.h>
#include <types/global.h>
#include <proto/backend.h>
#include <proto/channel.h>
#include <proto/checks.h>
#include <proto/compression.h>
#include <proto/dumpstats.h>
#include <proto/fd.h>
#include <proto/freq_ctr.h>
#include <proto/log.h>
#include <proto/pipe.h>
#include <proto/listener.h>
#include <proto/proto_http.h>
#include <proto/proto_uxst.h>
#include <proto/proxy.h>
#include <proto/session.h>
#include <proto/server.h>
#include <proto/raw_sock.h>
#include <proto/stream_interface.h>
#include <proto/task.h>
#ifdef USE_OPENSSL
#include <proto/ssl_sock.h>
#endif
static int stats_dump_info_to_buffer(struct stream_interface *si);
static int stats_dump_full_sess_to_buffer(struct stream_interface *si, struct session *sess);
static int stats_dump_sess_to_buffer(struct stream_interface *si);
static int stats_dump_errors_to_buffer(struct stream_interface *si);
static int stats_table_request(struct stream_interface *si, int show);
static int stats_dump_proxy_to_buffer(struct stream_interface *si, struct proxy *px, struct uri_auth *uri);
static int stats_dump_stat_to_buffer(struct stream_interface *si, struct uri_auth *uri);
/*
* cli_io_handler()
* -> stats_dump_sess_to_buffer() // "show sess"
* -> stats_dump_errors_to_buffer() // "show errors"
* -> stats_dump_info_to_buffer() // "show info"
* -> stats_dump_stat_to_buffer() // "show stat"
* -> stats_dump_csv_header()
* -> stats_dump_proxy_to_buffer()
* -> stats_dump_fe_stats()
* -> stats_dump_li_stats()
* -> stats_dump_sv_stats()
* -> stats_dump_be_stats()
*
* http_stats_io_handler()
* -> stats_dump_stat_to_buffer() // same as above, but used for CSV or HTML
* -> stats_dump_csv_header() // emits the CSV headers (same as above)
* -> stats_dump_html_head() // emits the HTML headers
* -> stats_dump_html_info() // emits the equivalent of "show info" at the top
* -> stats_dump_proxy_to_buffer() // same as above, valid for CSV and HTML
* -> stats_dump_html_px_hdr()
* -> stats_dump_fe_stats()
* -> stats_dump_li_stats()
* -> stats_dump_sv_stats()
* -> stats_dump_be_stats()
* -> stats_dump_html_px_end()
* -> stats_dump_html_end() // emits HTML trailer
*/
static struct si_applet cli_applet;
static const char stats_sock_usage_msg[] =
"Unknown command. Please enter one of the following commands only :\n"
" clear counters : clear max statistics counters (add 'all' for all counters)\n"
" clear table : remove an entry from a table\n"
" help : this message\n"
" prompt : toggle interactive mode with prompt\n"
" quit : disconnect\n"
" show info : report information about the running process\n"
" show stat : report counters for each proxy and server\n"
" show errors : report last request and response errors for each proxy\n"
" show sess [id] : report the list of current sessions or dump this session\n"
" show table [id]: report table usage stats or dump this table's contents\n"
" get weight : report a server's current weight\n"
" set weight : change a server's weight\n"
" set table [id] : update or create a table entry's data\n"
" set timeout : change a timeout setting\n"
" set maxconn : change a maxconn setting\n"
" set rate-limit : change a rate limiting value\n"
" disable : put a server or frontend in maintenance mode\n"
" enable : re-enable a server or frontend which is in maintenance mode\n"
" shutdown : kill a session or a frontend (eg:to release listening ports)\n"
"";
static const char stats_permission_denied_msg[] =
"Permission denied\n"
"";
/* data transmission states for the stats responses */
enum {
STAT_ST_INIT = 0,
STAT_ST_HEAD,
STAT_ST_INFO,
STAT_ST_LIST,
STAT_ST_END,
STAT_ST_FIN,
};
/* data transmission states for the stats responses inside a proxy */
enum {
STAT_PX_ST_INIT = 0,
STAT_PX_ST_TH,
STAT_PX_ST_FE,
STAT_PX_ST_LI,
STAT_PX_ST_SV,
STAT_PX_ST_BE,
STAT_PX_ST_END,
STAT_PX_ST_FIN,
};
extern const char *stat_status_codes[];
/* This function is called from the session-level accept() in order to instanciate
* a new stats socket. It returns a positive value upon success, 0 if the session
* needs to be closed and ignored, or a negative value upon critical failure.
*/
static int stats_accept(struct session *s)
{
/* we have a dedicated I/O handler for the CLI/stats, so we can safely
* release the pre-allocated connection that we will never use.
*/
pool_free2(pool2_connection, s->si[1].conn);
s->si[1].conn = NULL;
stream_int_register_handler(&s->si[1], &cli_applet);
s->target = &cli_applet.obj_type; // for logging only
s->si[1].appctx.st1 = 0;
s->si[1].appctx.st0 = STAT_CLI_INIT;
tv_zero(&s->logs.tv_request);
s->logs.t_queue = 0;
s->logs.t_connect = 0;
s->logs.t_data = 0;
s->logs.t_close = 0;
s->logs.bytes_in = s->logs.bytes_out = 0;
s->logs.prx_queue_size = 0; /* we get the number of pending conns before us */
s->logs.srv_queue_size = 0; /* we will get this number soon */
s->req->flags |= CF_READ_DONTWAIT; /* we plan to read small requests */
if (s->listener->timeout) {
s->req->rto = *s->listener->timeout;
s->rep->wto = *s->listener->timeout;
}
return 1;
}
/* allocate a new stats frontend named <name>, and return it
* (or NULL in case of lack of memory).
*/
static struct proxy *alloc_stats_fe(const char *name, const char *file, int line)
{
struct proxy *fe;
fe = (struct proxy *)calloc(1, sizeof(struct proxy));
if (!fe)
return NULL;
init_new_proxy(fe);
fe->next = proxy;
proxy = fe;
fe->last_change = now.tv_sec;
fe->id = strdup("GLOBAL");
fe->cap = PR_CAP_FE;
fe->maxconn = 10; /* default to 10 concurrent connections */
fe->timeout.client = MS_TO_TICKS(10000); /* default timeout of 10 seconds */
fe->conf.file = strdup(file);
fe->conf.line = line;
fe->accept = stats_accept;
/* the stats frontend is the only one able to assign ID #0 */
fe->conf.id.key = fe->uuid = 0;
eb32_insert(&used_proxy_id, &fe->conf.id);
return fe;
}
/* This function parses a "stats" statement in the "global" section. It returns
* -1 if there is any error, otherwise zero. If it returns -1, it will write an
* error message into the <err> buffer which will be preallocated. The trailing
* '\n' must not be written. The function must be called with <args> pointing to
* the first word after "stats".
*/
static int stats_parse_global(char **args, int section_type, struct proxy *curpx,
struct proxy *defpx, const char *file, int line,
char **err)
{
struct bind_conf *bind_conf;
struct listener *l;
if (!strcmp(args[1], "socket")) {
int cur_arg;
if (*args[2] == 0) {
memprintf(err, "'%s %s' in global section expects an address or a path to a UNIX socket", args[0], args[1]);
return -1;
}
if (!global.stats_fe) {
if ((global.stats_fe = alloc_stats_fe("GLOBAL", file, line)) == NULL) {
memprintf(err, "'%s %s' : out of memory trying to allocate a frontend", args[0], args[1]);
return -1;
}
}
bind_conf = bind_conf_alloc(&global.stats_fe->conf.bind, file, line, args[2]);
bind_conf->level = ACCESS_LVL_OPER; /* default access level */
if (!str2listener(args[2], global.stats_fe, bind_conf, file, line, err)) {
memprintf(err, "parsing [%s:%d] : '%s %s' : %s\n",
file, line, args[0], args[1], err && *err ? *err : "error");
return -1;
}
cur_arg = 3;
while (*args[cur_arg]) {
static int bind_dumped;
struct bind_kw *kw;
kw = bind_find_kw(args[cur_arg]);
if (kw) {
if (!kw->parse) {
memprintf(err, "'%s %s' : '%s' option is not implemented in this version (check build options).",
args[0], args[1], args[cur_arg]);
return -1;
}
if (kw->parse(args, cur_arg, curpx, bind_conf, err) != 0) {
if (err && *err)
memprintf(err, "'%s %s' : '%s'", args[0], args[1], *err);
else
memprintf(err, "'%s %s' : error encountered while processing '%s'",
args[0], args[1], args[cur_arg]);
return -1;
}
cur_arg += 1 + kw->skip;
continue;
}
if (!bind_dumped) {
bind_dump_kws(err);
indent_msg(err, 4);
bind_dumped = 1;
}
memprintf(err, "'%s %s' : unknown keyword '%s'.%s%s",
args[0], args[1], args[cur_arg],
err && *err ? " Registered keywords :" : "", err && *err ? *err : "");
return -1;
}
list_for_each_entry(l, &bind_conf->listeners, by_bind) {
l->maxconn = global.stats_fe->maxconn;
l->backlog = global.stats_fe->backlog;
l->timeout = &global.stats_fe->timeout.client;
l->accept = session_accept;
l->handler = process_session;
l->options |= LI_O_UNLIMITED; /* don't make the peers subject to global limits */
l->nice = -64; /* we want to boost priority for local stats */
global.maxsock += l->maxconn;
}
}
else if (!strcmp(args[1], "timeout")) {
unsigned timeout;
const char *res = parse_time_err(args[2], &timeout, TIME_UNIT_MS);
if (res) {
memprintf(err, "'%s %s' : unexpected character '%c'", args[0], args[1], *res);
return -1;
}
if (!timeout) {
memprintf(err, "'%s %s' expects a positive value", args[0], args[1]);
return -1;
}
if (!global.stats_fe) {
if ((global.stats_fe = alloc_stats_fe("GLOBAL", file, line)) == NULL) {
memprintf(err, "'%s %s' : out of memory trying to allocate a frontend", args[0], args[1]);
return -1;
}
}
global.stats_fe->timeout.client = MS_TO_TICKS(timeout);
}
else if (!strcmp(args[1], "maxconn")) {
int maxconn = atol(args[2]);
if (maxconn <= 0) {
memprintf(err, "'%s %s' expects a positive value", args[0], args[1]);
return -1;
}
if (!global.stats_fe) {
if ((global.stats_fe = alloc_stats_fe("GLOBAL", file, line)) == NULL) {
memprintf(err, "'%s %s' : out of memory trying to allocate a frontend", args[0], args[1]);
return -1;
}
}
global.stats_fe->maxconn = maxconn;
}
else if (!strcmp(args[1], "bind-process")) { /* enable the socket only on some processes */
int cur_arg = 2;
unsigned int set = 0;
if (!global.stats_fe) {
if ((global.stats_fe = alloc_stats_fe("GLOBAL", file, line)) == NULL) {
memprintf(err, "'%s %s' : out of memory trying to allocate a frontend", args[0], args[1]);
return -1;
}
}
while (*args[cur_arg]) {
unsigned int low, high;
if (strcmp(args[cur_arg], "all") == 0) {
set = 0;
break;
}
else if (strcmp(args[cur_arg], "odd") == 0) {
set |= 0x55555555;
}
else if (strcmp(args[cur_arg], "even") == 0) {
set |= 0xAAAAAAAA;
}
else if (isdigit((int)*args[cur_arg])) {
char *dash = strchr(args[cur_arg], '-');
low = high = str2uic(args[cur_arg]);
if (dash)
high = str2uic(dash + 1);
if (high < low) {
unsigned int swap = low;
low = high;
high = swap;
}
if (low < 1 || high > 32) {
memprintf(err, "'%s %s' supports process numbers from 1 to 32.\n",
args[0], args[1]);
return -1;
}
while (low <= high)
set |= 1 << (low++ - 1);
}
else {
memprintf(err,
"'%s %s' expects 'all', 'odd', 'even', or a list of process ranges with numbers from 1 to 32.\n",
args[0], args[1]);
return -1;
}
cur_arg++;
}
global.stats_fe->bind_proc = set;
}
else {
memprintf(err, "'%s' only supports 'socket', 'maxconn', 'bind-process' and 'timeout' (got '%s')", args[0], args[1]);
return -1;
}
return 0;
}
/* Dumps the stats CSV header to the trash buffer which. The caller is responsible
* for clearing it if needed.
*/
static void stats_dump_csv_header()
{
chunk_appendf(&trash,
"# pxname,svname,"
"qcur,qmax,"
"scur,smax,slim,stot,"
"bin,bout,"
"dreq,dresp,"
"ereq,econ,eresp,"
"wretr,wredis,"
"status,weight,act,bck,"
"chkfail,chkdown,lastchg,downtime,qlimit,"
"pid,iid,sid,throttle,lbtot,tracked,type,"
"rate,rate_lim,rate_max,"
"check_status,check_code,check_duration,"
"hrsp_1xx,hrsp_2xx,hrsp_3xx,hrsp_4xx,hrsp_5xx,hrsp_other,hanafail,"
"req_rate,req_rate_max,req_tot,"
"cli_abrt,srv_abrt,"
"comp_in,comp_out,comp_byp,comp_rsp,"
"\n");
}
/* print a string of text buffer to <out>. The format is :
* Non-printable chars \t, \n, \r and \e are * encoded in C format.
* Other non-printable chars are encoded "\xHH". Space and '\' are also escaped.
* Print stopped if null char or <bsize> is reached, or if no more place in the chunk.
*/
static int dump_text(struct chunk *out, const char *buf, int bsize)
{
unsigned char c;
int ptr = 0;
while (buf[ptr] && ptr < bsize) {
c = buf[ptr];
if (isprint(c) && isascii(c) && c != '\\' && c != ' ') {
if (out->len > out->size - 1)
break;
out->str[out->len++] = c;
}
else if (c == '\t' || c == '\n' || c == '\r' || c == '\e' || c == '\\' || c == ' ') {
if (out->len > out->size - 2)
break;
out->str[out->len++] = '\\';
switch (c) {
case ' ': c = ' '; break;
case '\t': c = 't'; break;
case '\n': c = 'n'; break;
case '\r': c = 'r'; break;
case '\e': c = 'e'; break;
case '\\': c = '\\'; break;
}
out->str[out->len++] = c;
}
else {
if (out->len > out->size - 4)
break;
out->str[out->len++] = '\\';
out->str[out->len++] = 'x';
out->str[out->len++] = hextab[(c >> 4) & 0xF];
out->str[out->len++] = hextab[c & 0xF];
}
ptr++;
}
return ptr;
}
/* print a buffer in hexa.
* Print stopped if <bsize> is reached, or if no more place in the chunk.
*/
static int dump_binary(struct chunk *out, const char *buf, int bsize)
{
unsigned char c;
int ptr = 0;
while (ptr < bsize) {
c = buf[ptr];
if (out->len > out->size - 2)
break;
out->str[out->len++] = hextab[(c >> 4) & 0xF];
out->str[out->len++] = hextab[c & 0xF];
ptr++;
}
return ptr;
}
/* Dump the status of a table to a stream interface's
* read buffer. It returns 0 if the output buffer is full
* and needs to be called again, otherwise non-zero.
*/
static int stats_dump_table_head_to_buffer(struct chunk *msg, struct stream_interface *si,
struct proxy *proxy, struct proxy *target)
{
struct session *s = session_from_task(si->owner);
chunk_appendf(msg, "# table: %s, type: %s, size:%d, used:%d\n",
proxy->id, stktable_types[proxy->table.type].kw, proxy->table.size, proxy->table.current);
/* any other information should be dumped here */
if (target && s->listener->bind_conf->level < ACCESS_LVL_OPER)
chunk_appendf(msg, "# contents not dumped due to insufficient privileges\n");
if (bi_putchk(si->ib, msg) == -1)
return 0;
return 1;
}
/* Dump the a table entry to a stream interface's
* read buffer. It returns 0 if the output buffer is full
* and needs to be called again, otherwise non-zero.
*/
static int stats_dump_table_entry_to_buffer(struct chunk *msg, struct stream_interface *si,
struct proxy *proxy, struct stksess *entry)
{
int dt;
chunk_appendf(msg, "%p:", entry);
if (proxy->table.type == STKTABLE_TYPE_IP) {
char addr[INET_ADDRSTRLEN];
inet_ntop(AF_INET, (const void *)&entry->key.key, addr, sizeof(addr));
chunk_appendf(msg, " key=%s", addr);
}
else if (proxy->table.type == STKTABLE_TYPE_IPV6) {
char addr[INET6_ADDRSTRLEN];
inet_ntop(AF_INET6, (const void *)&entry->key.key, addr, sizeof(addr));
chunk_appendf(msg, " key=%s", addr);
}
else if (proxy->table.type == STKTABLE_TYPE_INTEGER) {
chunk_appendf(msg, " key=%u", *(unsigned int *)entry->key.key);
}
else if (proxy->table.type == STKTABLE_TYPE_STRING) {
chunk_appendf(msg, " key=");
dump_text(msg, (const char *)entry->key.key, proxy->table.key_size);
}
else {
chunk_appendf(msg, " key=");
dump_binary(msg, (const char *)entry->key.key, proxy->table.key_size);
}
chunk_appendf(msg, " use=%d exp=%d", entry->ref_cnt - 1, tick_remain(now_ms, entry->expire));
for (dt = 0; dt < STKTABLE_DATA_TYPES; dt++) {
void *ptr;
if (proxy->table.data_ofs[dt] == 0)
continue;
if (stktable_data_types[dt].arg_type == ARG_T_DELAY)
chunk_appendf(msg, " %s(%d)=", stktable_data_types[dt].name, proxy->table.data_arg[dt].u);
else
chunk_appendf(msg, " %s=", stktable_data_types[dt].name);
ptr = stktable_data_ptr(&proxy->table, entry, dt);
switch (stktable_data_types[dt].std_type) {
case STD_T_SINT:
chunk_appendf(msg, "%d", stktable_data_cast(ptr, std_t_sint));
break;
case STD_T_UINT:
chunk_appendf(msg, "%u", stktable_data_cast(ptr, std_t_uint));
break;
case STD_T_ULL:
chunk_appendf(msg, "%lld", stktable_data_cast(ptr, std_t_ull));
break;
case STD_T_FRQP:
chunk_appendf(msg, "%d",
read_freq_ctr_period(&stktable_data_cast(ptr, std_t_frqp),
proxy->table.data_arg[dt].u));
break;
}
}
chunk_appendf(msg, "\n");
if (bi_putchk(si->ib, msg) == -1)
return 0;
return 1;
}
static void stats_sock_table_key_request(struct stream_interface *si, char **args, int action)
{
struct session *s = session_from_task(si->owner);
struct proxy *px = si->appctx.ctx.table.target;
struct stksess *ts;
uint32_t uint32_key;
unsigned char ip6_key[sizeof(struct in6_addr)];
long long value;
int data_type;
int cur_arg;
void *ptr;
struct freq_ctr_period *frqp;
si->appctx.st0 = STAT_CLI_OUTPUT;
if (!*args[4]) {
si->appctx.ctx.cli.msg = "Key value expected\n";
si->appctx.st0 = STAT_CLI_PRINT;
return;
}
switch (px->table.type) {
case STKTABLE_TYPE_IP:
uint32_key = htonl(inetaddr_host(args[4]));
static_table_key->key = &uint32_key;
break;
case STKTABLE_TYPE_IPV6:
inet_pton(AF_INET6, args[4], ip6_key);
static_table_key->key = &ip6_key;
break;
case STKTABLE_TYPE_INTEGER:
{
char *endptr;
unsigned long val;
errno = 0;
val = strtoul(args[4], &endptr, 10);
if ((errno == ERANGE && val == ULONG_MAX) ||
(errno != 0 && val == 0) || endptr == args[4] ||
val > 0xffffffff) {
si->appctx.ctx.cli.msg = "Invalid key\n";
si->appctx.st0 = STAT_CLI_PRINT;
return;
}
uint32_key = (uint32_t) val;
static_table_key->key = &uint32_key;
break;
}
break;
case STKTABLE_TYPE_STRING:
static_table_key->key = args[4];
static_table_key->key_len = strlen(args[4]);
break;
default:
switch (action) {
case STAT_CLI_O_TAB:
si->appctx.ctx.cli.msg = "Showing keys from tables of type other than ip, ipv6, string and integer is not supported\n";
break;
case STAT_CLI_O_CLR:
si->appctx.ctx.cli.msg = "Removing keys from ip tables of type other than ip, ipv6, string and integer is not supported\n";
break;
default:
si->appctx.ctx.cli.msg = "Unknown action\n";
break;
}
si->appctx.st0 = STAT_CLI_PRINT;
return;
}
/* check permissions */
if (s->listener->bind_conf->level < ACCESS_LVL_OPER) {
si->appctx.ctx.cli.msg = stats_permission_denied_msg;
si->appctx.st0 = STAT_CLI_PRINT;
return;
}
ts = stktable_lookup_key(&px->table, static_table_key);
switch (action) {
case STAT_CLI_O_TAB:
if (!ts)
return;
chunk_reset(&trash);
if (!stats_dump_table_head_to_buffer(&trash, si, px, px))
return;
stats_dump_table_entry_to_buffer(&trash, si, px, ts);
return;
case STAT_CLI_O_CLR:
if (!ts)
return;
if (ts->ref_cnt) {
/* don't delete an entry which is currently referenced */
si->appctx.ctx.cli.msg = "Entry currently in use, cannot remove\n";
si->appctx.st0 = STAT_CLI_PRINT;
return;
}
stksess_kill(&px->table, ts);
break;
case STAT_CLI_O_SET:
if (ts)
stktable_touch(&px->table, ts, 1);
else {
ts = stksess_new(&px->table, static_table_key);
if (!ts) {
/* don't delete an entry which is currently referenced */
si->appctx.ctx.cli.msg = "Unable to allocate a new entry\n";
si->appctx.st0 = STAT_CLI_PRINT;
return;
}
stktable_store(&px->table, ts, 1);
}
for (cur_arg = 5; *args[cur_arg]; cur_arg += 2) {
if (strncmp(args[cur_arg], "data.", 5) != 0) {
si->appctx.ctx.cli.msg = "\"data.<type>\" followed by a value expected\n";
si->appctx.st0 = STAT_CLI_PRINT;
return;
}
data_type = stktable_get_data_type(args[cur_arg] + 5);
if (data_type < 0) {
si->appctx.ctx.cli.msg = "Unknown data type\n";
si->appctx.st0 = STAT_CLI_PRINT;
return;
}
if (!px->table.data_ofs[data_type]) {
si->appctx.ctx.cli.msg = "Data type not stored in this table\n";
si->appctx.st0 = STAT_CLI_PRINT;
return;
}
if (!*args[cur_arg+1] || strl2llrc(args[cur_arg+1], strlen(args[cur_arg+1]), &value) != 0) {
si->appctx.ctx.cli.msg = "Require a valid integer value to store\n";
si->appctx.st0 = STAT_CLI_PRINT;
return;
}
ptr = stktable_data_ptr(&px->table, ts, data_type);
switch (stktable_data_types[data_type].std_type) {
case STD_T_SINT:
stktable_data_cast(ptr, std_t_sint) = value;
break;
case STD_T_UINT:
stktable_data_cast(ptr, std_t_uint) = value;
break;
case STD_T_ULL:
stktable_data_cast(ptr, std_t_ull) = value;
break;
case STD_T_FRQP:
/* We set both the current and previous values. That way
* the reported frequency is stable during all the period
* then slowly fades out. This allows external tools to
* push measures without having to update them too often.
*/
frqp = &stktable_data_cast(ptr, std_t_frqp);
frqp->curr_tick = now_ms;
frqp->prev_ctr = 0;
frqp->curr_ctr = value;
break;
}
}
break;
default:
si->appctx.ctx.cli.msg = "Unknown action\n";
si->appctx.st0 = STAT_CLI_PRINT;
break;
}
}
static void stats_sock_table_data_request(struct stream_interface *si, char **args, int action)
{
if (action != STAT_CLI_O_TAB && action != STAT_CLI_O_CLR) {
si->appctx.ctx.cli.msg = "content-based lookup is only supported with the \"show\" and \"clear\" actions";
si->appctx.st0 = STAT_CLI_PRINT;
return;
}
/* condition on stored data value */
si->appctx.ctx.table.data_type = stktable_get_data_type(args[3] + 5);
if (si->appctx.ctx.table.data_type < 0) {
si->appctx.ctx.cli.msg = "Unknown data type\n";
si->appctx.st0 = STAT_CLI_PRINT;
return;
}
if (!((struct proxy *)si->appctx.ctx.table.target)->table.data_ofs[si->appctx.ctx.table.data_type]) {
si->appctx.ctx.cli.msg = "Data type not stored in this table\n";
si->appctx.st0 = STAT_CLI_PRINT;
return;
}
si->appctx.ctx.table.data_op = get_std_op(args[4]);
if (si->appctx.ctx.table.data_op < 0) {
si->appctx.ctx.cli.msg = "Require and operator among \"eq\", \"ne\", \"le\", \"ge\", \"lt\", \"gt\"\n";
si->appctx.st0 = STAT_CLI_PRINT;
return;
}
if (!*args[5] || strl2llrc(args[5], strlen(args[5]), &si->appctx.ctx.table.value) != 0) {
si->appctx.ctx.cli.msg = "Require a valid integer value to compare against\n";
si->appctx.st0 = STAT_CLI_PRINT;
return;
}
}
static void stats_sock_table_request(struct stream_interface *si, char **args, int action)
{
si->appctx.ctx.table.data_type = -1;
si->appctx.st2 = STAT_ST_INIT;
si->appctx.ctx.table.target = NULL;
si->appctx.ctx.table.proxy = NULL;
si->appctx.ctx.table.entry = NULL;
si->appctx.st0 = action;
if (*args[2]) {
si->appctx.ctx.table.target = find_stktable(args[2]);
if (!si->appctx.ctx.table.target) {
si->appctx.ctx.cli.msg = "No such table\n";
si->appctx.st0 = STAT_CLI_PRINT;
return;
}
}
else {
if (action != STAT_CLI_O_TAB)
goto err_args;
return;
}
if (strcmp(args[3], "key") == 0)
stats_sock_table_key_request(si, args, action);
else if (strncmp(args[3], "data.", 5) == 0)
stats_sock_table_data_request(si, args, action);
else if (*args[3])
goto err_args;
return;
err_args:
switch (action) {
case STAT_CLI_O_TAB:
si->appctx.ctx.cli.msg = "Optional argument only supports \"data.<store_data_type>\" <operator> <value> and key <key>\n";
break;
case STAT_CLI_O_CLR:
si->appctx.ctx.cli.msg = "Required arguments: <table> \"data.<store_data_type>\" <operator> <value> or <table> key <key>\n";
break;
default:
si->appctx.ctx.cli.msg = "Unknown action\n";
break;
}
si->appctx.st0 = STAT_CLI_PRINT;
}
/* Expects to find a frontend named <arg> and returns it, otherwise displays various
* adequate error messages and returns NULL. This function also expects the session
* level to be admin.
*/
static struct proxy *expect_frontend_admin(struct session *s, struct stream_interface *si, const char *arg)
{
struct proxy *px;
if (s->listener->bind_conf->level < ACCESS_LVL_ADMIN) {
si->appctx.ctx.cli.msg = stats_permission_denied_msg;
si->appctx.st0 = STAT_CLI_PRINT;
return NULL;
}
if (!*arg) {
si->appctx.ctx.cli.msg = "A frontend name is expected.\n";
si->appctx.st0 = STAT_CLI_PRINT;
return NULL;
}
px = findproxy(arg, PR_CAP_FE);
if (!px) {
si->appctx.ctx.cli.msg = "No such frontend.\n";
si->appctx.st0 = STAT_CLI_PRINT;
return NULL;
}
return px;
}
/* Expects to find a backend and a server in <arg> under the form <backend>/<server>,
* and returns the pointer to the server. Otherwise, display adequate error messages
* and returns NULL. This function also expects the session level to be admin. Note:
* the <arg> is modified to remove the '/'.
*/
static struct server *expect_server_admin(struct session *s, struct stream_interface *si, char *arg)
{
struct proxy *px;
struct server *sv;
char *line;
if (s->listener->bind_conf->level < ACCESS_LVL_ADMIN) {
si->appctx.ctx.cli.msg = stats_permission_denied_msg;
si->appctx.st0 = STAT_CLI_PRINT;
return NULL;
}
/* split "backend/server" and make <line> point to server */
for (line = arg; *line; line++)
if (*line == '/') {
*line++ = '\0';
break;
}
if (!*line || !*arg) {
si->appctx.ctx.cli.msg = "Require 'backend/server'.\n";
si->appctx.st0 = STAT_CLI_PRINT;
return NULL;
}
if (!get_backend_server(arg, line, &px, &sv)) {
si->appctx.ctx.cli.msg = px ? "No such server.\n" : "No such backend.\n";
si->appctx.st0 = STAT_CLI_PRINT;
return NULL;
}
if (px->state == PR_STSTOPPED) {
si->appctx.ctx.cli.msg = "Proxy is disabled.\n";
si->appctx.st0 = STAT_CLI_PRINT;
return NULL;
}
return sv;
}
/* Processes the stats interpreter on the statistics socket. This function is
* called from an applet running in a stream interface. The function returns 1
* if the request was understood, otherwise zero. It sets si->appctx.st0 to a value
* designating the function which will have to process the request, which can
* also be the print function to display the return message set into cli.msg.
*/
static int stats_sock_parse_request(struct stream_interface *si, char *line)
{
struct session *s = session_from_task(si->owner);
char *args[MAX_STATS_ARGS + 1];
int arg;
while (isspace((unsigned char)*line))
line++;
arg = 0;
args[arg] = line;
while (*line && arg < MAX_STATS_ARGS) {
if (isspace((unsigned char)*line)) {
*line++ = '\0';
while (isspace((unsigned char)*line))
line++;
args[++arg] = line;
continue;
}
line++;
}
while (++arg <= MAX_STATS_ARGS)
args[arg] = line;
si->appctx.ctx.stats.flags = 0;
if (strcmp(args[0], "show") == 0) {
if (strcmp(args[1], "stat") == 0) {
if (*args[2] && *args[3] && *args[4]) {
si->appctx.ctx.stats.flags |= STAT_BOUND;
si->appctx.ctx.stats.iid = atoi(args[2]);
si->appctx.ctx.stats.type = atoi(args[3]);
si->appctx.ctx.stats.sid = atoi(args[4]);
}
si->appctx.st2 = STAT_ST_INIT;
si->appctx.st0 = STAT_CLI_O_STAT; // stats_dump_stat_to_buffer
}
else if (strcmp(args[1], "info") == 0) {
si->appctx.st2 = STAT_ST_INIT;
si->appctx.st0 = STAT_CLI_O_INFO; // stats_dump_info_to_buffer
}
else if (strcmp(args[1], "sess") == 0) {
si->appctx.st2 = STAT_ST_INIT;
if (s->listener->bind_conf->level < ACCESS_LVL_OPER) {
si->appctx.ctx.cli.msg = stats_permission_denied_msg;
si->appctx.st0 = STAT_CLI_PRINT;
return 1;
}
if (*args[2] && strcmp(args[2], "all") == 0)
si->appctx.ctx.sess.target = (void *)-1;
else if (*args[2])
si->appctx.ctx.sess.target = (void *)strtoul(args[2], NULL, 0);
else
si->appctx.ctx.sess.target = NULL;
si->appctx.ctx.sess.section = 0; /* start with session status */
si->appctx.ctx.sess.pos = 0;
si->appctx.st0 = STAT_CLI_O_SESS; // stats_dump_sess_to_buffer
}
else if (strcmp(args[1], "errors") == 0) {
if (s->listener->bind_conf->level < ACCESS_LVL_OPER) {
si->appctx.ctx.cli.msg = stats_permission_denied_msg;
si->appctx.st0 = STAT_CLI_PRINT;
return 1;
}
if (*args[2])
si->appctx.ctx.errors.iid = atoi(args[2]);
else
si->appctx.ctx.errors.iid = -1;
si->appctx.ctx.errors.px = NULL;
si->appctx.st2 = STAT_ST_INIT;
si->appctx.st0 = STAT_CLI_O_ERR; // stats_dump_errors_to_buffer
}
else if (strcmp(args[1], "table") == 0) {
stats_sock_table_request(si, args, STAT_CLI_O_TAB);
}
else { /* neither "stat" nor "info" nor "sess" nor "errors" nor "table" */
return 0;
}
}
else if (strcmp(args[0], "clear") == 0) {
if (strcmp(args[1], "counters") == 0) {
struct proxy *px;
struct server *sv;
struct listener *li;
int clrall = 0;
if (strcmp(args[2], "all") == 0)
clrall = 1;
/* check permissions */
if (s->listener->bind_conf->level < ACCESS_LVL_OPER ||
(clrall && s->listener->bind_conf->level < ACCESS_LVL_ADMIN)) {
si->appctx.ctx.cli.msg = stats_permission_denied_msg;
si->appctx.st0 = STAT_CLI_PRINT;
return 1;
}
for (px = proxy; px; px = px->next) {
if (clrall) {
memset(&px->be_counters, 0, sizeof(px->be_counters));
memset(&px->fe_counters, 0, sizeof(px->fe_counters));
}
else {
px->be_counters.conn_max = 0;
px->be_counters.p.http.rps_max = 0;
px->be_counters.sps_max = 0;
px->be_counters.cps_max = 0;
px->be_counters.nbpend_max = 0;
px->fe_counters.conn_max = 0;
px->fe_counters.p.http.rps_max = 0;
px->fe_counters.sps_max = 0;
px->fe_counters.cps_max = 0;
px->fe_counters.nbpend_max = 0;
}
for (sv = px->srv; sv; sv = sv->next)
if (clrall)
memset(&sv->counters, 0, sizeof(sv->counters));
else {
sv->counters.cur_sess_max = 0;
sv->counters.nbpend_max = 0;
sv->counters.sps_max = 0;
}
list_for_each_entry(li, &px->conf.listeners, by_fe)
if (li->counters) {
if (clrall)
memset(li->counters, 0, sizeof(*li->counters));
else
li->counters->conn_max = 0;
}
}
global.cps_max = 0;
return 1;
}
else if (strcmp(args[1], "table") == 0) {
stats_sock_table_request(si, args, STAT_CLI_O_CLR);
/* end of processing */
return 1;
}
else {
/* unknown "clear" argument */
return 0;
}
}
else if (strcmp(args[0], "get") == 0) {
if (strcmp(args[1], "weight") == 0) {
struct proxy *px;
struct server *sv;
/* split "backend/server" and make <line> point to server */
for (line = args[2]; *line; line++)
if (*line == '/') {
*line++ = '\0';
break;
}
if (!*line) {
si->appctx.ctx.cli.msg = "Require 'backend/server'.\n";
si->appctx.st0 = STAT_CLI_PRINT;
return 1;
}
if (!get_backend_server(args[2], line, &px, &sv)) {
si->appctx.ctx.cli.msg = px ? "No such server.\n" : "No such backend.\n";
si->appctx.st0 = STAT_CLI_PRINT;
return 1;
}
/* return server's effective weight at the moment */
snprintf(trash.str, trash.size, "%d (initial %d)\n", sv->uweight, sv->iweight);
bi_putstr(si->ib, trash.str);
return 1;
}
else { /* not "get weight" */
return 0;
}
}
else if (strcmp(args[0], "set") == 0) {
if (strcmp(args[1], "weight") == 0) {
struct server *sv;
const char *warning;
sv = expect_server_admin(s, si, args[2]);
if (!sv)
return 1;
warning = server_parse_weight_change_request(sv, args[3]);
/*
* The user-weight may now be zero and thus
* the server considered to be draining.
* Update the server's drain state as necessary.
*/
set_server_drain_state(sv);
if (warning) {
si->appctx.ctx.cli.msg = warning;
si->appctx.st0 = STAT_CLI_PRINT;
}
return 1;
}
else if (strcmp(args[1], "timeout") == 0) {
if (strcmp(args[2], "cli") == 0) {
unsigned timeout;
const char *res;
if (!*args[3]) {
si->appctx.ctx.cli.msg = "Expects an integer value.\n";
si->appctx.st0 = STAT_CLI_PRINT;
return 1;
}
res = parse_time_err(args[3], &timeout, TIME_UNIT_S);
if (res || timeout < 1) {
si->appctx.ctx.cli.msg = "Invalid timeout value.\n";
si->appctx.st0 = STAT_CLI_PRINT;
return 1;
}
s->req->rto = s->rep->wto = 1 + MS_TO_TICKS(timeout*1000);
return 1;
}
else {
si->appctx.ctx.cli.msg = "'set timeout' only supports 'cli'.\n";
si->appctx.st0 = STAT_CLI_PRINT;
return 1;
}
}
else if (strcmp(args[1], "maxconn") == 0) {
if (strcmp(args[2], "frontend") == 0) {
struct proxy *px;
struct listener *l;
int v;
px = expect_frontend_admin(s, si, args[3]);
if (!px)
return 1;
if (!*args[4]) {
si->appctx.ctx.cli.msg = "Integer value expected.\n";
si->appctx.st0 = STAT_CLI_PRINT;
return 1;
}
v = atoi(args[4]);
if (v < 0) {
si->appctx.ctx.cli.msg = "Value out of range.\n";
si->appctx.st0 = STAT_CLI_PRINT;
return 1;
}
/* OK, the value is fine, so we assign it to the proxy and to all of
* its listeners. The blocked ones will be dequeued.
*/
px->maxconn = v;
list_for_each_entry(l, &px->conf.listeners, by_fe) {
l->maxconn = v;
if (l->state == LI_FULL)
resume_listener(l);
}
if (px->maxconn > px->feconn && !LIST_ISEMPTY(&s->fe->listener_queue))
dequeue_all_listeners(&s->fe->listener_queue);
return 1;
}
else if (strcmp(args[2], "global") == 0) {
int v;
if (s->listener->bind_conf->level < ACCESS_LVL_ADMIN) {
si->appctx.ctx.cli.msg = stats_permission_denied_msg;
si->appctx.st0 = STAT_CLI_PRINT;
return 1;
}
if (!*args[3]) {
si->appctx.ctx.cli.msg = "Expects an integer value.\n";
si->appctx.st0 = STAT_CLI_PRINT;
return 1;
}
v = atoi(args[3]);
if (v > global.hardmaxconn) {
si->appctx.ctx.cli.msg = "Value out of range.\n";
si->appctx.st0 = STAT_CLI_PRINT;
return 1;
}
/* check for unlimited values */
if (v <= 0)
v = global.hardmaxconn;
global.maxconn = v;
/* Dequeues all of the listeners waiting for a resource */
if (!LIST_ISEMPTY(&global_listener_queue))
dequeue_all_listeners(&global_listener_queue);
return 1;
}
else {
si->appctx.ctx.cli.msg = "'set maxconn' only supports 'frontend' and 'global'.\n";
si->appctx.st0 = STAT_CLI_PRINT;
return 1;
}
}
else if (strcmp(args[1], "rate-limit") == 0) {
if (strcmp(args[2], "connections") == 0) {
if (strcmp(args[3], "global") == 0) {
int v;
if (s->listener->bind_conf->level < ACCESS_LVL_ADMIN) {
si->appctx.ctx.cli.msg = stats_permission_denied_msg;
si->appctx.st0 = STAT_CLI_PRINT;
return 1;
}
if (!*args[4]) {
si->appctx.ctx.cli.msg = "Expects an integer value.\n";
si->appctx.st0 = STAT_CLI_PRINT;
return 1;
}
v = atoi(args[4]);
if (v < 0) {
si->appctx.ctx.cli.msg = "Value out of range.\n";
si->appctx.st0 = STAT_CLI_PRINT;
return 1;
}
global.cps_lim = v;
/* Dequeues all of the listeners waiting for a resource */
if (!LIST_ISEMPTY(&global_listener_queue))
dequeue_all_listeners(&global_listener_queue);
return 1;
}
else {
si->appctx.ctx.cli.msg = "'set rate-limit connections' only supports 'global'.\n";
si->appctx.st0 = STAT_CLI_PRINT;
return 1;
}
}
else if (strcmp(args[2], "http-compression") == 0) {
if (strcmp(args[3], "global") == 0) {
int v;
if (!*args[4]) {
si->appctx.ctx.cli.msg = "Expects a maximum input byte rate in kB/s.\n";
si->appctx.st0 = STAT_CLI_PRINT;
return 1;
}
v = atoi(args[4]);
global.comp_rate_lim = v * 1024; /* Kilo to bytes. */
}
else {
si->appctx.ctx.cli.msg = "'set rate-limit http-compression' only supports 'global'.\n";
si->appctx.st0 = STAT_CLI_PRINT;
return 1;
}
}
else {
si->appctx.ctx.cli.msg = "'set rate-limit' supports 'connections' and 'http-compression'.\n";
si->appctx.st0 = STAT_CLI_PRINT;
return 1;
}
}
else if (strcmp(args[1], "table") == 0) {
stats_sock_table_request(si, args, STAT_CLI_O_SET);
}
else { /* unknown "set" parameter */
return 0;
}
}
else if (strcmp(args[0], "enable") == 0) {
if (strcmp(args[1], "agent") == 0) {
struct server *sv;
sv = expect_server_admin(s, si, args[2]);
if (!sv)
return 1;
sv->agent.state &= ~CHK_STATE_DISABLED;
return 1;
}
if (strcmp(args[1], "server") == 0) {
struct server *sv;
sv = expect_server_admin(s, si, args[2]);
if (!sv)
return 1;
if (sv->state & SRV_MAINTAIN) {
/* The server is really in maintenance, we can change the server state */
if (sv->track) {
/* If this server tracks the status of another one,
* we must restore the good status.
*/
if (sv->track->state & SRV_RUNNING) {
set_server_up(&sv->check);
sv->check.health = sv->check.rise; /* up, but will fall down at first failure */
} else {
sv->state &= ~SRV_MAINTAIN;
set_server_down(&sv->check);
}
} else {
set_server_up(&sv->check);
sv->check.health = sv->check.rise; /* up, but will fall down at first failure */
}
}
return 1;
}
else if (strcmp(args[1], "frontend") == 0) {
struct proxy *px;
px = expect_frontend_admin(s, si, args[2]);
if (!px)
return 1;
if (px->state == PR_STSTOPPED) {
si->appctx.ctx.cli.msg = "Frontend was previously shut down, cannot enable.\n";
si->appctx.st0 = STAT_CLI_PRINT;
return 1;
}
if (px->state != PR_STPAUSED) {
si->appctx.ctx.cli.msg = "Frontend is already enabled.\n";
si->appctx.st0 = STAT_CLI_PRINT;
return 1;
}
if (!resume_proxy(px)) {
si->appctx.ctx.cli.msg = "Failed to resume frontend, check logs for precise cause (port conflict?).\n";
si->appctx.st0 = STAT_CLI_PRINT;
return 1;
}
return 1;
}
else { /* unknown "enable" parameter */
si->appctx.ctx.cli.msg = "'enable' only supports 'frontend' and 'server'.\n";
si->appctx.st0 = STAT_CLI_PRINT;
return 1;
}
}
else if (strcmp(args[0], "disable") == 0) {
if (strcmp(args[1], "agent") == 0) {
struct server *sv;
sv = expect_server_admin(s, si, args[2]);
if (!sv)
return 1;
sv->agent.state |= CHK_STATE_DISABLED;
return 1;
}
else if (strcmp(args[1], "server") == 0) {
struct server *sv;
sv = expect_server_admin(s, si, args[2]);
if (!sv)
return 1;
if (! (sv->state & SRV_MAINTAIN)) {
/* Not already in maintenance, we can change the server state */
sv->state |= SRV_MAINTAIN;
set_server_down(&sv->check);
}
return 1;
}
else if (strcmp(args[1], "frontend") == 0) {
struct proxy *px;
px = expect_frontend_admin(s, si, args[2]);
if (!px)
return 1;
if (px->state == PR_STSTOPPED) {
si->appctx.ctx.cli.msg = "Frontend was previously shut down, cannot disable.\n";
si->appctx.st0 = STAT_CLI_PRINT;
return 1;
}
if (px->state == PR_STPAUSED) {
si->appctx.ctx.cli.msg = "Frontend is already disabled.\n";
si->appctx.st0 = STAT_CLI_PRINT;
return 1;
}
if (!pause_proxy(px)) {
si->appctx.ctx.cli.msg = "Failed to pause frontend, check logs for precise cause.\n";
si->appctx.st0 = STAT_CLI_PRINT;
return 1;
}
return 1;
}
else { /* unknown "disable" parameter */
si->appctx.ctx.cli.msg = "'disable' only supports 'frontend' and 'server'.\n";
si->appctx.st0 = STAT_CLI_PRINT;
return 1;
}
}
else if (strcmp(args[0], "shutdown") == 0) {
if (strcmp(args[1], "frontend") == 0) {
struct proxy *px;
px = expect_frontend_admin(s, si, args[2]);
if (!px)
return 1;
if (px->state == PR_STSTOPPED) {
si->appctx.ctx.cli.msg = "Frontend was already shut down.\n";
si->appctx.st0 = STAT_CLI_PRINT;
return 1;
}
Warning("Proxy %s stopped (FE: %lld conns, BE: %lld conns).\n",
px->id, px->fe_counters.cum_conn, px->be_counters.cum_conn);
send_log(px, LOG_WARNING, "Proxy %s stopped (FE: %lld conns, BE: %lld conns).\n",
px->id, px->fe_counters.cum_conn, px->be_counters.cum_conn);
stop_proxy(px);
return 1;
}
else if (strcmp(args[1], "session") == 0) {
struct session *sess, *ptr;
if (s->listener->bind_conf->level < ACCESS_LVL_ADMIN) {
si->appctx.ctx.cli.msg = stats_permission_denied_msg;
si->appctx.st0 = STAT_CLI_PRINT;
return 1;
}
if (!*args[2]) {
si->appctx.ctx.cli.msg = "Session pointer expected (use 'show sess').\n";
si->appctx.st0 = STAT_CLI_PRINT;
return 1;
}
ptr = (void *)strtoul(args[2], NULL, 0);
/* first, look for the requested session in the session table */
list_for_each_entry(sess, &sessions, list) {
if (sess == ptr)
break;
}
/* do we have the session ? */
if (sess != ptr) {
si->appctx.ctx.cli.msg = "No such session (use 'show sess').\n";
si->appctx.st0 = STAT_CLI_PRINT;
return 1;
}
session_shutdown(sess, SN_ERR_KILLED);
return 1;
}
else if (strcmp(args[1], "sessions") == 0) {
if (strcmp(args[2], "server") == 0) {
struct server *sv;
struct session *sess, *sess_bck;
sv = expect_server_admin(s, si, args[3]);
if (!sv)
return 1;
/* kill all the session that are on this server */
list_for_each_entry_safe(sess, sess_bck, &sv->actconns, by_srv)
if (sess->srv_conn == sv)
session_shutdown(sess, SN_ERR_KILLED);
return 1;
}
else {
si->appctx.ctx.cli.msg = "'shutdown sessions' only supports 'server'.\n";
si->appctx.st0 = STAT_CLI_PRINT;
return 1;
}
}
else { /* unknown "disable" parameter */
si->appctx.ctx.cli.msg = "'shutdown' only supports 'frontend', 'session' and 'sessions'.\n";
si->appctx.st0 = STAT_CLI_PRINT;
return 1;
}
}
else { /* not "show" nor "clear" nor "get" nor "set" nor "enable" nor "disable" */
return 0;
}
return 1;
}
/* This I/O handler runs as an applet embedded in a stream interface. It is
* used to processes I/O from/to the stats unix socket. The system relies on a
* state machine handling requests and various responses. We read a request,
* then we process it and send the response, and we possibly display a prompt.
* Then we can read again. The state is stored in si->appctx.st0 and is one of the
* STAT_CLI_* constants. si->appctx.st1 is used to indicate whether prompt is enabled
* or not.
*/
static void cli_io_handler(struct stream_interface *si)
{
struct channel *req = si->ob;
struct channel *res = si->ib;
int reql;
int len;
if (unlikely(si->state == SI_ST_DIS || si->state == SI_ST_CLO))
goto out;
while (1) {
if (si->appctx.st0 == STAT_CLI_INIT) {
/* Stats output not initialized yet */
memset(&si->appctx.ctx.stats, 0, sizeof(si->appctx.ctx.stats));
si->appctx.st0 = STAT_CLI_GETREQ;
}
else if (si->appctx.st0 == STAT_CLI_END) {
/* Let's close for real now. We just close the request
* side, the conditions below will complete if needed.
*/
si_shutw(si);
break;
}
else if (si->appctx.st0 == STAT_CLI_GETREQ) {
/* ensure we have some output room left in the event we
* would want to return some info right after parsing.
*/
if (buffer_almost_full(si->ib->buf))
break;
reql = bo_getline(si->ob, trash.str, trash.size);
if (reql <= 0) { /* closed or EOL not found */
if (reql == 0)
break;
si->appctx.st0 = STAT_CLI_END;
continue;
}
/* seek for a possible semi-colon. If we find one, we
* replace it with an LF and skip only this part.
*/
for (len = 0; len < reql; len++)
if (trash.str[len] == ';') {
trash.str[len] = '\n';
reql = len + 1;
break;
}
/* now it is time to check that we have a full line,
* remove the trailing \n and possibly \r, then cut the
* line.
*/
len = reql - 1;
if (trash.str[len] != '\n') {
si->appctx.st0 = STAT_CLI_END;
continue;
}
if (len && trash.str[len-1] == '\r')
len--;
trash.str[len] = '\0';
si->appctx.st0 = STAT_CLI_PROMPT;
if (len) {
if (strcmp(trash.str, "quit") == 0) {
si->appctx.st0 = STAT_CLI_END;
continue;
}
else if (strcmp(trash.str, "prompt") == 0)
si->appctx.st1 = !si->appctx.st1;
else if (strcmp(trash.str, "help") == 0 ||
!stats_sock_parse_request(si, trash.str)) {
si->appctx.ctx.cli.msg = stats_sock_usage_msg;
si->appctx.st0 = STAT_CLI_PRINT;
}
/* NB: stats_sock_parse_request() may have put
* another STAT_CLI_O_* into si->appctx.st0.
*/
}
else if (!si->appctx.st1) {
/* if prompt is disabled, print help on empty lines,
* so that the user at least knows how to enable
* prompt and find help.
*/
si->appctx.ctx.cli.msg = stats_sock_usage_msg;
si->appctx.st0 = STAT_CLI_PRINT;
}
/* re-adjust req buffer */
bo_skip(si->ob, reql);
req->flags |= CF_READ_DONTWAIT; /* we plan to read small requests */
}
else { /* output functions: first check if the output buffer is closed then abort */
if (res->flags & (CF_SHUTR_NOW|CF_SHUTR)) {
si->appctx.st0 = STAT_CLI_END;
continue;
}
switch (si->appctx.st0) {
case STAT_CLI_PRINT:
if (bi_putstr(si->ib, si->appctx.ctx.cli.msg) != -1)
si->appctx.st0 = STAT_CLI_PROMPT;
break;
case STAT_CLI_O_INFO:
if (stats_dump_info_to_buffer(si))
si->appctx.st0 = STAT_CLI_PROMPT;
break;
case STAT_CLI_O_STAT:
if (stats_dump_stat_to_buffer(si, NULL))
si->appctx.st0 = STAT_CLI_PROMPT;
break;
case STAT_CLI_O_SESS:
if (stats_dump_sess_to_buffer(si))
si->appctx.st0 = STAT_CLI_PROMPT;
break;
case STAT_CLI_O_ERR: /* errors dump */
if (stats_dump_errors_to_buffer(si))
si->appctx.st0 = STAT_CLI_PROMPT;
break;
case STAT_CLI_O_TAB:
case STAT_CLI_O_CLR:
if (stats_table_request(si, si->appctx.st0))
si->appctx.st0 = STAT_CLI_PROMPT;
break;
default: /* abnormal state */
si->appctx.st0 = STAT_CLI_PROMPT;
break;
}
/* The post-command prompt is either LF alone or LF + '> ' in interactive mode */
if (si->appctx.st0 == STAT_CLI_PROMPT) {
if (bi_putstr(si->ib, si->appctx.st1 ? "\n> " : "\n") != -1)
si->appctx.st0 = STAT_CLI_GETREQ;
}
/* If the output functions are still there, it means they require more room. */
if (si->appctx.st0 >= STAT_CLI_OUTPUT)
break;
/* Now we close the output if one of the writers did so,
* or if we're not in interactive mode and the request
* buffer is empty. This still allows pipelined requests
* to be sent in non-interactive mode.
*/
if ((res->flags & (CF_SHUTW|CF_SHUTW_NOW)) || (!si->appctx.st1 && !req->buf->o)) {
si->appctx.st0 = STAT_CLI_END;
continue;
}
/* switch state back to GETREQ to read next requests */
si->appctx.st0 = STAT_CLI_GETREQ;
}
}
if ((res->flags & CF_SHUTR) && (si->state == SI_ST_EST) && (si->appctx.st0 != STAT_CLI_GETREQ)) {
DPRINTF(stderr, "%s@%d: si to buf closed. req=%08x, res=%08x, st=%d\n",
__FUNCTION__, __LINE__, req->flags, res->flags, si->state);
/* Other side has closed, let's abort if we have no more processing to do
* and nothing more to consume. This is comparable to a broken pipe, so
* we forward the close to the request side so that it flows upstream to
* the client.
*/
si_shutw(si);
}
if ((req->flags & CF_SHUTW) && (si->state == SI_ST_EST) && (si->appctx.st0 < STAT_CLI_OUTPUT)) {
DPRINTF(stderr, "%s@%d: buf to si closed. req=%08x, res=%08x, st=%d\n",
__FUNCTION__, __LINE__, req->flags, res->flags, si->state);
/* We have no more processing to do, and nothing more to send, and
* the client side has closed. So we'll forward this state downstream
* on the response buffer.
*/
si_shutr(si);
res->flags |= CF_READ_NULL;
}
/* update all other flags and resync with the other side */
si_update(si);
/* we don't want to expire timeouts while we're processing requests */
si->ib->rex = TICK_ETERNITY;
si->ob->wex = TICK_ETERNITY;
out:
DPRINTF(stderr, "%s@%d: st=%d, rqf=%x, rpf=%x, rqh=%d, rqs=%d, rh=%d, rs=%d\n",
__FUNCTION__, __LINE__,
si->state, req->flags, res->flags, req->buf->i, req->buf->o, res->buf->i, res->buf->o);
if (unlikely(si->state == SI_ST_DIS || si->state == SI_ST_CLO)) {
/* check that we have released everything then unregister */
stream_int_unregister_handler(si);
}
}
/* This function dumps information onto the stream interface's read buffer.
* It returns 0 as long as it does not complete, non-zero upon completion.
* No state is used.
*/
static int stats_dump_info_to_buffer(struct stream_interface *si)
{
unsigned int up = (now.tv_sec - start_date.tv_sec);
chunk_printf(&trash,
"Name: " PRODUCT_NAME "\n"
"Version: " HAPROXY_VERSION "\n"
"Release_date: " HAPROXY_DATE "\n"
"Nbproc: %d\n"
"Process_num: %d\n"
"Pid: %d\n"
"Uptime: %dd %dh%02dm%02ds\n"
"Uptime_sec: %d\n"
"Memmax_MB: %d\n"
"Ulimit-n: %d\n"
"Maxsock: %d\n"
"Maxconn: %d\n"
"Hard_maxconn: %d\n"
"Maxpipes: %d\n"
"CurrConns: %d\n"
"PipesUsed: %d\n"
"PipesFree: %d\n"
"ConnRate: %d\n"
"ConnRateLimit: %d\n"
"MaxConnRate: %d\n"
"CompressBpsIn: %u\n"
"CompressBpsOut: %u\n"
"CompressBpsRateLim: %u\n"
#ifdef USE_ZLIB
"ZlibMemUsage: %ld\n"
"MaxZlibMemUsage: %ld\n"
#endif
"Tasks: %d\n"
"Run_queue: %d\n"
"Idle_pct: %d\n"
"node: %s\n"
"description: %s\n"
"",
global.nbproc,
relative_pid,
pid,
up / 86400, (up % 86400) / 3600, (up % 3600) / 60, (up % 60),
up,
global.rlimit_memmax,
global.rlimit_nofile,
global.maxsock, global.maxconn, global.hardmaxconn, global.maxpipes,
actconn, pipes_used, pipes_free,
read_freq_ctr(&global.conn_per_sec), global.cps_lim, global.cps_max,
read_freq_ctr(&global.comp_bps_in), read_freq_ctr(&global.comp_bps_out),
global.comp_rate_lim,
#ifdef USE_ZLIB
zlib_used_memory, global.maxzlibmem,
#endif
nb_tasks_cur, run_queue_cur, idle_pct,
global.node, global.desc ? global.desc : ""
);
if (bi_putchk(si->ib, &trash) == -1)
return 0;
return 1;
}
/* Dumps a frontend's line to the trash for the current proxy <px> and uses
* the state from stream interface <si>. The caller is responsible for clearing
* the trash if needed. Returns non-zero if it emits anything, zero otherwise.
*/
static int stats_dump_fe_stats(struct stream_interface *si, struct proxy *px)
{
int i;
if (!(px->cap & PR_CAP_FE))
return 0;
if ((si->appctx.ctx.stats.flags & STAT_BOUND) && !(si->appctx.ctx.stats.type & (1 << STATS_TYPE_FE)))
return 0;
if (si->appctx.ctx.stats.flags & STAT_FMT_HTML) {
chunk_appendf(&trash,
/* name, queue */
"<tr class=\"frontend\">");
if (px->cap & PR_CAP_BE && px->srv && (si->appctx.ctx.stats.flags & STAT_ADMIN)) {
/* Column sub-heading for Enable or Disable server */
chunk_appendf(&trash, "<td></td>");
}
chunk_appendf(&trash,
"<td class=ac>"
"<a name=\"%s/Frontend\"></a>"
"<a class=lfsb href=\"#%s/Frontend\">Frontend</a></td>"
"<td colspan=3></td>"
"",
px->id, px->id);
chunk_appendf(&trash,
/* sessions rate : current */
"<td><u>%s<div class=tips><table class=det>"
"<tr><th>Current connection rate:</th><td>%s/s</td></tr>"
"<tr><th>Current session rate:</th><td>%s/s</td></tr>"
"",
U2H(read_freq_ctr(&px->fe_sess_per_sec)),
U2H(read_freq_ctr(&px->fe_conn_per_sec)),
U2H(read_freq_ctr(&px->fe_sess_per_sec)));
if (px->mode == PR_MODE_HTTP)
chunk_appendf(&trash,
"<tr><th>Current request rate:</th><td>%s/s</td></tr>",
U2H(read_freq_ctr(&px->fe_req_per_sec)));
chunk_appendf(&trash,
"</table></div></u></td>"
/* sessions rate : max */
"<td><u>%s<div class=tips><table class=det>"
"<tr><th>Max connection rate:</th><td>%s/s</td></tr>"
"<tr><th>Max session rate:</th><td>%s/s</td></tr>"
"",
U2H(px->fe_counters.sps_max),
U2H(px->fe_counters.cps_max),
U2H(px->fe_counters.sps_max));
if (px->mode == PR_MODE_HTTP)
chunk_appendf(&trash,
"<tr><th>Max request rate:</th><td>%s/s</td></tr>",
U2H(px->fe_counters.p.http.rps_max));
chunk_appendf(&trash,
"</table></div></u></td>"
/* sessions rate : limit */
"<td>%s</td>",
LIM2A(px->fe_sps_lim, "-"));
chunk_appendf(&trash,
/* sessions: current, max, limit, total */
"<td>%s</td><td>%s</td><td>%s</td>"
"<td><u>%s<div class=tips><table class=det>"
"<tr><th>Cum. connections:</th><td>%s</td></tr>"
"<tr><th>Cum. sessions:</th><td>%s</td></tr>"
"",
U2H(px->feconn), U2H(px->fe_counters.conn_max), U2H(px->maxconn),
U2H(px->fe_counters.cum_sess),
U2H(px->fe_counters.cum_conn),
U2H(px->fe_counters.cum_sess));
/* http response (via hover): 1xx, 2xx, 3xx, 4xx, 5xx, other */
if (px->mode == PR_MODE_HTTP) {
chunk_appendf(&trash,
"<tr><th>Cum. HTTP requests:</th><td>%s</td></tr>"
"<tr><th>- HTTP 1xx responses:</th><td>%s</td></tr>"
"<tr><th>- HTTP 2xx responses:</th><td>%s</td></tr>"
"<tr><th>&nbsp;&nbsp;Compressed 2xx:</th><td>%s</td><td>(%d%%)</td></tr>"
"<tr><th>- HTTP 3xx responses:</th><td>%s</td></tr>"
"<tr><th>- HTTP 4xx responses:</th><td>%s</td></tr>"
"<tr><th>- HTTP 5xx responses:</th><td>%s</td></tr>"
"<tr><th>- other responses:</th><td>%s</td></tr>"
"<tr><th>Intercepted requests:</th><td>%s</td></tr>"
"",
U2H(px->fe_counters.p.http.cum_req),
U2H(px->fe_counters.p.http.rsp[1]),
U2H(px->fe_counters.p.http.rsp[2]),
U2H(px->fe_counters.p.http.comp_rsp),
px->fe_counters.p.http.rsp[2] ?
(int)(100*px->fe_counters.p.http.comp_rsp/px->fe_counters.p.http.rsp[2]) : 0,
U2H(px->fe_counters.p.http.rsp[3]),
U2H(px->fe_counters.p.http.rsp[4]),
U2H(px->fe_counters.p.http.rsp[5]),
U2H(px->fe_counters.p.http.rsp[0]),
U2H(px->fe_counters.intercepted_req));
}
chunk_appendf(&trash,
"</table></div></u></td>"
/* sessions: lbtot */
"<td></td>"
/* bytes : in */
"<td>%s</td>"
"",
U2H(px->fe_counters.bytes_in));
chunk_appendf(&trash,
/* bytes:out + compression stats (via hover): comp_in, comp_out, comp_byp */
"<td>%s%s<div class=tips>compression: in=%lld out=%lld bypassed=%lld savings=%d%%</div>%s</td>",
(px->fe_counters.comp_in || px->fe_counters.comp_byp) ? "<u>":"",
U2H(px->fe_counters.bytes_out),
px->fe_counters.comp_in, px->fe_counters.comp_out, px->fe_counters.comp_byp,
px->fe_counters.comp_in ?
(int)((px->fe_counters.comp_in - px->fe_counters.comp_out)*100/px->fe_counters.comp_in) : 0,
(px->fe_counters.comp_in || px->fe_counters.comp_byp) ? "</u>":"");
chunk_appendf(&trash,
/* denied: req, resp */
"<td>%s</td><td>%s</td>"
/* errors : request, connect, response */
"<td>%s</td><td></td><td></td>"
/* warnings: retries, redispatches */
"<td></td><td></td>"
/* server status : reflect frontend status */
"<td class=ac>%s</td>"
/* rest of server: nothing */
"<td class=ac colspan=8></td></tr>"
"",
U2H(px->fe_counters.denied_req), U2H(px->fe_counters.denied_resp),
U2H(px->fe_counters.failed_req),
px->state == PR_STREADY ? "OPEN" :
px->state == PR_STFULL ? "FULL" : "STOP");
}
else { /* CSV mode */
chunk_appendf(&trash,
/* pxid, name, queue cur, queue max, */
"%s,FRONTEND,,,"
/* sessions : current, max, limit, total */
"%d,%d,%d,%lld,"
/* bytes : in, out */
"%lld,%lld,"
/* denied: req, resp */
"%lld,%lld,"
/* errors : request, connect, response */
"%lld,,,"
/* warnings: retries, redispatches */
",,"
/* server status : reflect frontend status */
"%s,"
/* rest of server: nothing */
",,,,,,,,"
/* pid, iid, sid, throttle, lbtot, tracked, type */
"%d,%d,0,,,,%d,"
/* rate, rate_lim, rate_max */
"%u,%u,%u,"
/* check_status, check_code, check_duration */
",,,",
px->id,
px->feconn, px->fe_counters.conn_max, px->maxconn, px->fe_counters.cum_sess,
px->fe_counters.bytes_in, px->fe_counters.bytes_out,
px->fe_counters.denied_req, px->fe_counters.denied_resp,
px->fe_counters.failed_req,
px->state == PR_STREADY ? "OPEN" :
px->state == PR_STFULL ? "FULL" : "STOP",
relative_pid, px->uuid, STATS_TYPE_FE,
read_freq_ctr(&px->fe_sess_per_sec),
px->fe_sps_lim, px->fe_counters.sps_max);
/* http response: 1xx, 2xx, 3xx, 4xx, 5xx, other */
if (px->mode == PR_MODE_HTTP) {
for (i=1; i<6; i++)
chunk_appendf(&trash, "%lld,", px->fe_counters.p.http.rsp[i]);
chunk_appendf(&trash, "%lld,", px->fe_counters.p.http.rsp[0]);
}
else
chunk_appendf(&trash, ",,,,,,");
/* failed health analyses */
chunk_appendf(&trash, ",");
/* requests : req_rate, req_rate_max, req_tot, */
chunk_appendf(&trash, "%u,%u,%lld,",
read_freq_ctr(&px->fe_req_per_sec),
px->fe_counters.p.http.rps_max, px->fe_counters.p.http.cum_req);
/* errors: cli_aborts, srv_aborts */
chunk_appendf(&trash, ",,");
/* compression: in, out, bypassed */
chunk_appendf(&trash, "%lld,%lld,%lld,",
px->fe_counters.comp_in, px->fe_counters.comp_out, px->fe_counters.comp_byp);
/* compression: comp_rsp */
chunk_appendf(&trash, "%lld,",
px->fe_counters.p.http.comp_rsp);
/* finish with EOL */
chunk_appendf(&trash, "\n");
}
return 1;
}
/* Dumps a line for listener <l> and proxy <px> to the trash and uses the state
* from stream interface <si>, and stats flags <flags>. The caller is responsible
* for clearing the trash if needed. Returns non-zero if it emits anything, zero
* otherwise.
*/
static int stats_dump_li_stats(struct stream_interface *si, struct proxy *px, struct listener *l, int flags)
{
if (si->appctx.ctx.stats.flags & STAT_FMT_HTML) {
chunk_appendf(&trash, "<tr class=socket>");
if (px->cap & PR_CAP_BE && px->srv && (si->appctx.ctx.stats.flags & STAT_ADMIN)) {
/* Column sub-heading for Enable or Disable server */
chunk_appendf(&trash, "<td></td>");
}
chunk_appendf(&trash,
/* frontend name, listener name */
"<td class=ac><a name=\"%s/+%s\"></a>%s"
"<a class=lfsb href=\"#%s/+%s\">%s</a>"
"",
px->id, l->name,
(flags & ST_SHLGNDS)?"<u>":"",
px->id, l->name, l->name);
if (flags & ST_SHLGNDS) {
char str[INET6_ADDRSTRLEN];
int port;
chunk_appendf(&trash, "<div class=tips>");
port = get_host_port(&l->addr);
switch (addr_to_str(&l->addr, str, sizeof(str))) {
case AF_INET:
chunk_appendf(&trash, "IPv4: %s:%d, ", str, port);
break;
case AF_INET6:
chunk_appendf(&trash, "IPv6: [%s]:%d, ", str, port);
break;
case AF_UNIX:
chunk_appendf(&trash, "unix, ");
break;
case -1:
chunk_appendf(&trash, "(%s), ", strerror(errno));
break;
}
/* id */
chunk_appendf(&trash, "id: %d</div>", l->luid);
}
chunk_appendf(&trash,
/* queue */
"%s</td><td colspan=3></td>"
/* sessions rate: current, max, limit */
"<td colspan=3>&nbsp;</td>"
/* sessions: current, max, limit, total, lbtot */
"<td>%s</td><td>%s</td><td>%s</td>"
"<td>%s</td><td>&nbsp;</td>"
/* bytes: in, out */
"<td>%s</td><td>%s</td>"
"",
(flags & ST_SHLGNDS)?"</u>":"",
U2H(l->nbconn), U2H(l->counters->conn_max), U2H(l->maxconn),
U2H(l->counters->cum_conn), U2H(l->counters->bytes_in), U2H(l->counters->bytes_out));
chunk_appendf(&trash,
/* denied: req, resp */
"<td>%s</td><td>%s</td>"
/* errors: request, connect, response */
"<td>%s</td><td></td><td></td>"
/* warnings: retries, redispatches */
"<td></td><td></td>"
/* server status: reflect listener status */
"<td class=ac>%s</td>"
/* rest of server: nothing */
"<td class=ac colspan=8></td></tr>"
"",
U2H(l->counters->denied_req), U2H(l->counters->denied_resp),
U2H(l->counters->failed_req),
(l->nbconn < l->maxconn) ? (l->state == LI_LIMITED) ? "WAITING" : "OPEN" : "FULL");
}
else { /* CSV mode */
chunk_appendf(&trash,
/* pxid, name, queue cur, queue max, */
"%s,%s,,,"
/* sessions: current, max, limit, total */
"%d,%d,%d,%lld,"
/* bytes: in, out */
"%lld,%lld,"
/* denied: req, resp */
"%lld,%lld,"
/* errors: request, connect, response */
"%lld,,,"
/* warnings: retries, redispatches */
",,"
/* server status: reflect listener status */
"%s,"
/* rest of server: nothing */
",,,,,,,,"
/* pid, iid, sid, throttle, lbtot, tracked, type */
"%d,%d,%d,,,,%d,"
/* rate, rate_lim, rate_max */
",,,"
/* check_status, check_code, check_duration */
",,,"
/* http response: 1xx, 2xx, 3xx, 4xx, 5xx, other */
",,,,,,"
/* failed health analyses */
","
/* requests : req_rate, req_rate_max, req_tot, */
",,,"
/* errors: cli_aborts, srv_aborts */
",,"
/* compression: in, out, bypassed, comp_rsp */
",,,,"
"\n",
px->id, l->name,
l->nbconn, l->counters->conn_max,
l->maxconn, l->counters->cum_conn,
l->counters->bytes_in, l->counters->bytes_out,
l->counters->denied_req, l->counters->denied_resp,
l->counters->failed_req,
(l->nbconn < l->maxconn) ? "OPEN" : "FULL",
relative_pid, px->uuid, l->luid, STATS_TYPE_SO);
}
return 1;
}
/* Dumps a line for server <sv> and proxy <px> to the trash and uses the state
* from stream interface <si>, stats flags <flags>, and server state <state>.
* The caller is responsible for clearing the trash if needed. Returns non-zero
* if it emits anything, zero otherwise. The <state> parameter can take the
* following values : 0=DOWN, 1=going up, 2=going down, 3=UP, 4,5=NOLB,
* 6,7=DRAIN, 8=unchecked.
*/
static int stats_dump_sv_stats(struct stream_interface *si, struct proxy *px, int flags, struct server *sv, int state)
{
struct server *ref = sv->track ? sv->track : sv;
char str[INET6_ADDRSTRLEN];
struct chunk src;
int i;
if (si->appctx.ctx.stats.flags & STAT_FMT_HTML) {
static char *srv_hlt_st[9] = {
"DOWN",
"DN %d/%d &uarr;",
"UP %d/%d &darr;",
"UP",
"NOLB %d/%d &darr;",
"NOLB",
"DRAIN %d/%d &darr;",
"DRAIN",
"<i>no check</i>"
};
if ((sv->state & SRV_MAINTAIN) || (ref->state & SRV_MAINTAIN))
chunk_appendf(&trash, "<tr class=\"maintain\">");
else
chunk_appendf(&trash,
"<tr class=\"%s%d\">",
(sv->state & SRV_BACKUP) ? "backup" : "active", state);
if ((px->cap & PR_CAP_BE) && px->srv && (si->appctx.ctx.stats.flags & STAT_ADMIN))
chunk_appendf(&trash,
"<td><input type=\"checkbox\" name=\"s\" value=\"%s\"></td>",
sv->id);
chunk_appendf(&trash,
"<td class=ac><a name=\"%s/%s\"></a>%s"
"<a class=lfsb href=\"#%s/%s\">%s</a>"
"",
px->id, sv->id,
(flags & ST_SHLGNDS) ? "<u>" : "",
px->id, sv->id, sv->id);
if (flags & ST_SHLGNDS) {
chunk_appendf(&trash, "<div class=tips>");
switch (addr_to_str(&sv->addr, str, sizeof(str))) {
case AF_INET:
chunk_appendf(&trash, "IPv4: %s:%d, ", str, get_host_port(&sv->addr));
break;
case AF_INET6:
chunk_appendf(&trash, "IPv6: [%s]:%d, ", str, get_host_port(&sv->addr));
break;
case AF_UNIX:
chunk_appendf(&trash, "unix, ");
break;
case -1:
chunk_appendf(&trash, "(%s), ", strerror(errno));
break;
default: /* address family not supported */
break;
}
/* id */
chunk_appendf(&trash, "id: %d", sv->puid);
/* cookie */
if (sv->cookie) {
chunk_appendf(&trash, ", cookie: '");
chunk_initlen(&src, sv->cookie, 0, strlen(sv->cookie));
chunk_htmlencode(&trash, &src);
chunk_appendf(&trash, "'");
}
chunk_appendf(&trash, "</div>");
}
chunk_appendf(&trash,
/* queue : current, max, limit */
"%s</td><td>%s</td><td>%s</td><td>%s</td>"
/* sessions rate : current, max, limit */
"<td>%s</td><td>%s</td><td></td>"
"",
(flags & ST_SHLGNDS) ? "</u>" : "",
U2H(sv->nbpend), U2H(sv->counters.nbpend_max), LIM2A(sv->maxqueue, "-"),
U2H(read_freq_ctr(&sv->sess_per_sec)), U2H(sv->counters.sps_max));
chunk_appendf(&trash,
/* sessions: current, max, limit, total */
"<td>%s</td><td>%s</td><td>%s</td>"
"<td><u>%s<div class=tips><table class=det>"
"<tr><th>Cum. sessions:</th><td>%s</td></tr>"
"",
U2H(sv->cur_sess), U2H(sv->counters.cur_sess_max), LIM2A(sv->maxconn, "-"),
U2H(sv->counters.cum_sess),
U2H(sv->counters.cum_sess));
/* http response (via hover): 1xx, 2xx, 3xx, 4xx, 5xx, other */
if (px->mode == PR_MODE_HTTP) {
unsigned long long tot;
for (tot = i = 0; i < 6; i++)
tot += sv->counters.p.http.rsp[i];
chunk_appendf(&trash,
"<tr><th>Cum. HTTP responses:</th><td>%s</td></tr>"
"<tr><th>- HTTP 1xx responses:</th><td>%s</td><td>(%d%%)</td></tr>"
"<tr><th>- HTTP 2xx responses:</th><td>%s</td><td>(%d%%)</td></tr>"
"<tr><th>- HTTP 3xx responses:</th><td>%s</td><td>(%d%%)</td></tr>"
"<tr><th>- HTTP 4xx responses:</th><td>%s</td><td>(%d%%)</td></tr>"
"<tr><th>- HTTP 5xx responses:</th><td>%s</td><td>(%d%%)</td></tr>"
"<tr><th>- other responses:</th><td>%s</td><td>(%d%%)</td></tr>"
"",
U2H(tot),
U2H(sv->counters.p.http.rsp[1]), tot ? (int)(100*sv->counters.p.http.rsp[1] / tot) : 0,
U2H(sv->counters.p.http.rsp[2]), tot ? (int)(100*sv->counters.p.http.rsp[2] / tot) : 0,
U2H(sv->counters.p.http.rsp[3]), tot ? (int)(100*sv->counters.p.http.rsp[3] / tot) : 0,
U2H(sv->counters.p.http.rsp[4]), tot ? (int)(100*sv->counters.p.http.rsp[4] / tot) : 0,
U2H(sv->counters.p.http.rsp[5]), tot ? (int)(100*sv->counters.p.http.rsp[5] / tot) : 0,
U2H(sv->counters.p.http.rsp[0]), tot ? (int)(100*sv->counters.p.http.rsp[0] / tot) : 0);
}
chunk_appendf(&trash,
"</table></div></u></td>"
/* sessions: lbtot */
"<td>%s</td>",
U2H(sv->counters.cum_lbconn));
chunk_appendf(&trash,
/* bytes : in, out */
"<td>%s</td><td>%s</td>"
/* denied: req, resp */
"<td></td><td>%s</td>"
/* errors : request, connect */
"<td></td><td>%s</td>"
/* errors : response */
"<td><u>%s<div class=tips>Connection resets during transfers: %lld client, %lld server</div></u></td>"
/* warnings: retries, redispatches */
"<td>%lld</td><td>%lld</td>"
"",
U2H(sv->counters.bytes_in), U2H(sv->counters.bytes_out),
U2H(sv->counters.failed_secu),
U2H(sv->counters.failed_conns),
U2H(sv->counters.failed_resp),
sv->counters.cli_aborts,
sv->counters.srv_aborts,
sv->counters.retries, sv->counters.redispatches);
/* status, lest check */
chunk_appendf(&trash, "<td class=ac>");
if (sv->state & SRV_MAINTAIN) {
chunk_appendf(&trash, "%s ", human_time(now.tv_sec - sv->last_change, 1));
chunk_appendf(&trash, "MAINT");
}
else if (ref != sv && ref->state & SRV_MAINTAIN) {
chunk_appendf(&trash, "%s ", human_time(now.tv_sec - ref->last_change, 1));
chunk_appendf(&trash, "MAINT(via)");
}
else if (ref->state & SRV_CHECKED) {
chunk_appendf(&trash, "%s ", human_time(now.tv_sec - ref->last_change, 1));
chunk_appendf(&trash,
srv_hlt_st[state],
(ref->state & SRV_RUNNING) ? (ref->check.health - ref->check.rise + 1) : (ref->check.health),
(ref->state & SRV_RUNNING) ? (ref->check.fall) : (ref->check.rise));
}
if (sv->state & SRV_CHECKED) {
chunk_appendf(&trash,
"</td><td class=ac><u> %s%s",
(sv->check.state & CHK_STATE_RUNNING) ? "* " : "",
get_check_status_info(sv->check.status));
if (sv->check.status >= HCHK_STATUS_L57DATA)
chunk_appendf(&trash, "/%d", sv->check.code);
if (sv->check.status >= HCHK_STATUS_CHECKED && sv->check.duration >= 0)
chunk_appendf(&trash, " in %lums", sv->check.duration);
chunk_appendf(&trash, "<div class=tips>%s",
get_check_status_description(sv->check.status));
if (*sv->check.desc) {
chunk_appendf(&trash, ": ");
chunk_initlen(&src, sv->check.desc, 0, strlen(sv->check.desc));
chunk_htmlencode(&trash, &src);
}
chunk_appendf(&trash, "</div></u>");
}
else
chunk_appendf(&trash, "</td><td>");
chunk_appendf(&trash,
/* weight */
"</td><td class=ac>%d</td>"
/* act, bck */
"<td class=ac>%s</td><td class=ac>%s</td>"
"",
(sv->eweight * px->lbprm.wmult + px->lbprm.wdiv - 1) / px->lbprm.wdiv,
(sv->state & SRV_BACKUP) ? "-" : "Y",
(sv->state & SRV_BACKUP) ? "Y" : "-");
/* check failures: unique, fatal, down time */
if (sv->state & SRV_CHECKED) {
chunk_appendf(&trash, "<td><u>%lld", ref->counters.failed_checks);
if (ref->observe)
chunk_appendf(&trash, "/%lld", ref->counters.failed_hana);
chunk_appendf(&trash,
"<div class=tips>Failed Health Checks%s</div></u></td>"
"<td>%lld</td><td>%s</td>"
"",
ref->observe ? "/Health Analyses" : "",
ref->counters.down_trans, human_time(srv_downtime(sv), 1));
}
else if (sv != ref) {
if (sv->state & SRV_MAINTAIN)
chunk_appendf(&trash,
"<td class=ac colspan=3><a class=lfsb href=\"#%s/%s\"><a></td>",
ref->proxy->id, ref->id);
else
chunk_appendf(&trash,
"<td class=ac colspan=3><a class=lfsb href=\"#%s/%s\">via %s/%s<a></td>",
ref->proxy->id, ref->id, ref->proxy->id, ref->id);
}
else
chunk_appendf(&trash, "<td colspan=3></td>");
/* throttle */
if (sv->state & SRV_WARMINGUP)
chunk_appendf(&trash, "<td class=ac>%d %%</td></tr>\n", server_throttle_rate(sv));
else
chunk_appendf(&trash, "<td class=ac>-</td></tr>\n");
}
else { /* CSV mode */
static char *srv_hlt_st[9] = {
"DOWN,",
"DOWN %d/%d,",
"UP %d/%d,",
"UP,",
"NOLB %d/%d,",
"NOLB,",
"DRAIN %d/%d,",
"DRAIN,",
"no check,"
};
chunk_appendf(&trash,
/* pxid, name */
"%s,%s,"
/* queue : current, max */
"%d,%d,"
/* sessions : current, max, limit, total */
"%d,%d,%s,%lld,"
/* bytes : in, out */
"%lld,%lld,"
/* denied: req, resp */
",%lld,"
/* errors : request, connect, response */
",%lld,%lld,"
/* warnings: retries, redispatches */
"%lld,%lld,"
"",
px->id, sv->id,
sv->nbpend, sv->counters.nbpend_max,
sv->cur_sess, sv->counters.cur_sess_max, LIM2A(sv->maxconn, ""), sv->counters.cum_sess,
sv->counters.bytes_in, sv->counters.bytes_out,
sv->counters.failed_secu,
sv->counters.failed_conns, sv->counters.failed_resp,
sv->counters.retries, sv->counters.redispatches);
/* status */
if (sv->state & SRV_MAINTAIN)
chunk_appendf(&trash, "MAINT,");
else if (ref != sv && ref->state & SRV_MAINTAIN)
chunk_appendf(&trash, "MAINT(via),");
else
chunk_appendf(&trash,
srv_hlt_st[state],
(ref->state & SRV_RUNNING) ? (ref->check.health - ref->check.rise + 1) : (ref->check.health),
(ref->state & SRV_RUNNING) ? (ref->check.fall) : (ref->check.rise));
chunk_appendf(&trash,
/* weight, active, backup */
"%d,%d,%d,"
"",
(sv->eweight * px->lbprm.wmult + px->lbprm.wdiv - 1) / px->lbprm.wdiv,
(sv->state & SRV_BACKUP) ? 0 : 1,
(sv->state & SRV_BACKUP) ? 1 : 0);
/* check failures: unique, fatal; last change, total downtime */
if (sv->state & SRV_CHECKED)
chunk_appendf(&trash,
"%lld,%lld,%d,%d,",
sv->counters.failed_checks, sv->counters.down_trans,
(int)(now.tv_sec - sv->last_change), srv_downtime(sv));
else
chunk_appendf(&trash, ",,,,");
/* queue limit, pid, iid, sid, */
chunk_appendf(&trash,
"%s,"
"%d,%d,%d,",
LIM2A(sv->maxqueue, ""),
relative_pid, px->uuid, sv->puid);
/* throttle */
if (sv->state & SRV_WARMINGUP)
chunk_appendf(&trash, "%d", server_throttle_rate(sv));
/* sessions: lbtot */
chunk_appendf(&trash, ",%lld,", sv->counters.cum_lbconn);
/* tracked */
if (sv->track)
chunk_appendf(&trash, "%s/%s,",
sv->track->proxy->id, sv->track->id);
else
chunk_appendf(&trash, ",");
/* type */
chunk_appendf(&trash, "%d,", STATS_TYPE_SV);
/* rate */
chunk_appendf(&trash, "%u,,%u,",
read_freq_ctr(&sv->sess_per_sec),
sv->counters.sps_max);
if (sv->state & SRV_CHECKED) {
/* check_status */
chunk_appendf(&trash, "%s,", get_check_status_info(sv->check.status));
/* check_code */
if (sv->check.status >= HCHK_STATUS_L57DATA)
chunk_appendf(&trash, "%u,", sv->check.code);
else
chunk_appendf(&trash, ",");
/* check_duration */
if (sv->check.status >= HCHK_STATUS_CHECKED)
chunk_appendf(&trash, "%lu,", sv->check.duration);
else
chunk_appendf(&trash, ",");
}
else
chunk_appendf(&trash, ",,,");
/* http response: 1xx, 2xx, 3xx, 4xx, 5xx, other */
if (px->mode == PR_MODE_HTTP) {
for (i=1; i<6; i++)
chunk_appendf(&trash, "%lld,", sv->counters.p.http.rsp[i]);
chunk_appendf(&trash, "%lld,", sv->counters.p.http.rsp[0]);
}
else
chunk_appendf(&trash, ",,,,,,");
/* failed health analyses */
chunk_appendf(&trash, "%lld,", sv->counters.failed_hana);
/* requests : req_rate, req_rate_max, req_tot, */
chunk_appendf(&trash, ",,,");
/* errors: cli_aborts, srv_aborts */
chunk_appendf(&trash, "%lld,%lld,",
sv->counters.cli_aborts, sv->counters.srv_aborts);
/* compression: in, out, bypassed, comp_rsp */
chunk_appendf(&trash, ",,,,");
/* finish with EOL */
chunk_appendf(&trash, "\n");
}
return 1;
}
/* Dumps a line for backend <px> to the trash for and uses the state from stream
* interface <si> and stats flags <flags>. The caller is responsible for clearing
* the trash if needed. Returns non-zero if it emits anything, zero otherwise.
*/
static int stats_dump_be_stats(struct stream_interface *si, struct proxy *px, int flags)
{
struct chunk src;
int i;
if (!(px->cap & PR_CAP_BE))
return 0;
if ((si->appctx.ctx.stats.flags & STAT_BOUND) && !(si->appctx.ctx.stats.type & (1 << STATS_TYPE_BE)))
return 0;
if (si->appctx.ctx.stats.flags & STAT_FMT_HTML) {
chunk_appendf(&trash, "<tr class=\"backend\">");
if (px->srv && (si->appctx.ctx.stats.flags & STAT_ADMIN)) {
/* Column sub-heading for Enable or Disable server */
chunk_appendf(&trash, "<td></td>");
}
chunk_appendf(&trash,
"<td class=ac>"
/* name */
"%s<a name=\"%s/Backend\"></a>"
"<a class=lfsb href=\"#%s/Backend\">Backend</a>"
"",
(flags & ST_SHLGNDS)?"<u>":"",
px->id, px->id);
if (flags & ST_SHLGNDS) {
/* balancing */
chunk_appendf(&trash, "<div class=tips>balancing: %s",
backend_lb_algo_str(px->lbprm.algo & BE_LB_ALGO));
/* cookie */
if (px->cookie_name) {
chunk_appendf(&trash, ", cookie: '");
chunk_initlen(&src, px->cookie_name, 0, strlen(px->cookie_name));
chunk_htmlencode(&trash, &src);
chunk_appendf(&trash, "'");
}
chunk_appendf(&trash, "</div>");
}
chunk_appendf(&trash,
"%s</td>"
/* queue : current, max */
"<td>%s</td><td>%s</td><td></td>"
/* sessions rate : current, max, limit */
"<td>%s</td><td>%s</td><td></td>"
"",
(flags & ST_SHLGNDS)?"</u>":"",
U2H(px->nbpend) /* or px->totpend ? */, U2H(px->be_counters.nbpend_max),
U2H(read_freq_ctr(&px->be_sess_per_sec)), U2H(px->be_counters.sps_max));
chunk_appendf(&trash,
/* sessions: current, max, limit, total */
"<td>%s</td><td>%s</td><td>%s</td>"
"<td><u>%s<div class=tips><table class=det>"
"<tr><th>Cum. sessions:</th><td>%s</td></tr>"
"",
U2H(px->beconn), U2H(px->be_counters.conn_max), U2H(px->fullconn),
U2H(px->be_counters.cum_conn),
U2H(px->be_counters.cum_conn));
/* http response (via hover): 1xx, 2xx, 3xx, 4xx, 5xx, other */
if (px->mode == PR_MODE_HTTP) {
chunk_appendf(&trash,
"<tr><th>Cum. HTTP requests:</th><td>%s</td></tr>"
"<tr><th>- HTTP 1xx responses:</th><td>%s</td></tr>"
"<tr><th>- HTTP 2xx responses:</th><td>%s</td></tr>"
"<tr><th>&nbsp;&nbsp;Compressed 2xx:</th><td>%s</td><td>(%d%%)</td></tr>"
"<tr><th>- HTTP 3xx responses:</th><td>%s</td></tr>"
"<tr><th>- HTTP 4xx responses:</th><td>%s</td></tr>"
"<tr><th>- HTTP 5xx responses:</th><td>%s</td></tr>"
"<tr><th>- other responses:</th><td>%s</td></tr>"
"<tr><th>Intercepted requests:</th><td>%s</td></tr>"
"",
U2H(px->be_counters.p.http.cum_req),
U2H(px->be_counters.p.http.rsp[1]),
U2H(px->be_counters.p.http.rsp[2]),
U2H(px->be_counters.p.http.comp_rsp),
px->be_counters.p.http.rsp[2] ?
(int)(100*px->be_counters.p.http.comp_rsp/px->be_counters.p.http.rsp[2]) : 0,
U2H(px->be_counters.p.http.rsp[3]),
U2H(px->be_counters.p.http.rsp[4]),
U2H(px->be_counters.p.http.rsp[5]),
U2H(px->be_counters.p.http.rsp[0]),
U2H(px->be_counters.intercepted_req));
}
chunk_appendf(&trash,
"</table></div></u></td>"
/* sessions: lbtot */
"<td>%s</td>"
/* bytes: in */
"<td>%s</td>"
"",
U2H(px->be_counters.cum_lbconn),
U2H(px->be_counters.bytes_in));
chunk_appendf(&trash,
/* bytes:out + compression stats (via hover): comp_in, comp_out, comp_byp */
"<td>%s%s<div class=tips>compression: in=%lld out=%lld bypassed=%lld savings=%d%%</div>%s</td>",
(px->be_counters.comp_in || px->be_counters.comp_byp) ? "<u>":"",
U2H(px->be_counters.bytes_out),
px->be_counters.comp_in, px->be_counters.comp_out, px->be_counters.comp_byp,
px->be_counters.comp_in ?
(int)((px->be_counters.comp_in - px->be_counters.comp_out)*100/px->be_counters.comp_in) : 0,
(px->be_counters.comp_in || px->be_counters.comp_byp) ? "</u>":"");
chunk_appendf(&trash,
/* denied: req, resp */
"<td>%s</td><td>%s</td>"
/* errors : request, connect */
"<td></td><td>%s</td>"
/* errors : response */
"<td><u>%s<div class=tips>Connection resets during transfers: %lld client, %lld server</div></u></td>"
/* warnings: retries, redispatches */
"<td>%lld</td><td>%lld</td>"
/* backend status: reflect backend status (up/down): we display UP
* if the backend has known working servers or if it has no server at
* all (eg: for stats). Then we display the total weight, number of
* active and backups. */
"<td class=ac>%s %s</td><td class=ac>&nbsp;</td><td class=ac>%d</td>"
"<td class=ac>%d</td><td class=ac>%d</td>"
"",
U2H(px->be_counters.denied_req), U2H(px->be_counters.denied_resp),
U2H(px->be_counters.failed_conns),
U2H(px->be_counters.failed_resp),
px->be_counters.cli_aborts,
px->be_counters.srv_aborts,
px->be_counters.retries, px->be_counters.redispatches,
human_time(now.tv_sec - px->last_change, 1),
(px->lbprm.tot_weight > 0 || !px->srv) ? "UP" :
"<font color=\"red\"><b>DOWN</b></font>",
(px->lbprm.tot_weight * px->lbprm.wmult + px->lbprm.wdiv - 1) / px->lbprm.wdiv,
px->srv_act, px->srv_bck);
chunk_appendf(&trash,
/* rest of backend: nothing, down transitions, total downtime, throttle */
"<td class=ac>&nbsp;</td><td>%d</td>"
"<td>%s</td>"
"<td></td>"
"</tr>",
px->down_trans,
px->srv?human_time(be_downtime(px), 1):"&nbsp;");
}
else { /* CSV mode */
chunk_appendf(&trash,
/* pxid, name */
"%s,BACKEND,"
/* queue : current, max */
"%d,%d,"
/* sessions : current, max, limit, total */
"%d,%d,%d,%lld,"
/* bytes : in, out */
"%lld,%lld,"
/* denied: req, resp */
"%lld,%lld,"
/* errors : request, connect, response */
",%lld,%lld,"
/* warnings: retries, redispatches */
"%lld,%lld,"
/* backend status: reflect backend status (up/down): we display UP
* if the backend has known working servers or if it has no server at
* all (eg: for stats). Then we display the total weight, number of
* active and backups. */
"%s,"
"%d,%d,%d,"
/* rest of backend: nothing, down transitions, last change, total downtime */
",%d,%d,%d,,"
/* pid, iid, sid, throttle, lbtot, tracked, type */
"%d,%d,0,,%lld,,%d,"
/* rate, rate_lim, rate_max, */
"%u,,%u,"
/* check_status, check_code, check_duration */
",,,",
px->id,
px->nbpend /* or px->totpend ? */, px->be_counters.nbpend_max,
px->beconn, px->be_counters.conn_max, px->fullconn, px->be_counters.cum_conn,
px->be_counters.bytes_in, px->be_counters.bytes_out,
px->be_counters.denied_req, px->be_counters.denied_resp,
px->be_counters.failed_conns, px->be_counters.failed_resp,
px->be_counters.retries, px->be_counters.redispatches,
(px->lbprm.tot_weight > 0 || !px->srv) ? "UP" : "DOWN",
(px->lbprm.tot_weight * px->lbprm.wmult + px->lbprm.wdiv - 1) / px->lbprm.wdiv,
px->srv_act, px->srv_bck,
px->down_trans, (int)(now.tv_sec - px->last_change),
px->srv?be_downtime(px):0,
relative_pid, px->uuid,
px->be_counters.cum_lbconn, STATS_TYPE_BE,
read_freq_ctr(&px->be_sess_per_sec),
px->be_counters.sps_max);
/* http response: 1xx, 2xx, 3xx, 4xx, 5xx, other */
if (px->mode == PR_MODE_HTTP) {
for (i=1; i<6; i++)
chunk_appendf(&trash, "%lld,", px->be_counters.p.http.rsp[i]);
chunk_appendf(&trash, "%lld,", px->be_counters.p.http.rsp[0]);
}
else
chunk_appendf(&trash, ",,,,,,");
/* failed health analyses */
chunk_appendf(&trash, ",");
/* requests : req_rate, req_rate_max, req_tot, */
chunk_appendf(&trash, ",,,");
/* errors: cli_aborts, srv_aborts */
chunk_appendf(&trash, "%lld,%lld,",
px->be_counters.cli_aborts, px->be_counters.srv_aborts);
/* compression: in, out, bypassed */
chunk_appendf(&trash, "%lld,%lld,%lld,",
px->be_counters.comp_in, px->be_counters.comp_out, px->be_counters.comp_byp);
/* compression: comp_rsp */
chunk_appendf(&trash, "%lld,", px->be_counters.p.http.comp_rsp);
/* finish with EOL */
chunk_appendf(&trash, "\n");
}
return 1;
}
/* Dumps the HTML table header for proxy <px> to the trash for and uses the state from
* stream interface <si> and per-uri parameters <uri>. The caller is responsible
* for clearing the trash if needed.
*/
static void stats_dump_html_px_hdr(struct stream_interface *si, struct proxy *px, struct uri_auth *uri)
{
char scope_txt[STAT_SCOPE_TXT_MAXLEN + sizeof STAT_SCOPE_PATTERN];
if (px->cap & PR_CAP_BE && px->srv && (si->appctx.ctx.stats.<