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William Lallemand74c24fb2016-11-21 17:18:36 +01001/*
2 * Functions dedicated to statistics output and the stats socket
3 *
4 * Copyright 2000-2012 Willy Tarreau <w@1wt.eu>
5 * Copyright 2007-2009 Krzysztof Piotr Oledzki <ole@ans.pl>
6 *
7 * This program is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License
9 * as published by the Free Software Foundation; either version
10 * 2 of the License, or (at your option) any later version.
11 *
12 */
13
14#include <ctype.h>
15#include <errno.h>
16#include <fcntl.h>
17#include <stdio.h>
18#include <stdlib.h>
19#include <string.h>
20#include <pwd.h>
21#include <grp.h>
22
23#include <sys/socket.h>
24#include <sys/stat.h>
25#include <sys/types.h>
26
Olivier Houchardf886e342017-04-05 22:24:59 +020027#include <net/if.h>
28
William Lallemand74c24fb2016-11-21 17:18:36 +010029#include <common/cfgparse.h>
30#include <common/compat.h>
31#include <common/config.h>
32#include <common/debug.h>
Willy Tarreau0108d902018-11-25 19:14:37 +010033#include <common/initcall.h>
William Lallemand74c24fb2016-11-21 17:18:36 +010034#include <common/memory.h>
35#include <common/mini-clist.h>
36#include <common/standard.h>
37#include <common/ticks.h>
38#include <common/time.h>
39#include <common/uri_auth.h>
40#include <common/version.h>
41#include <common/base64.h>
42
43#include <types/applet.h>
William Lallemand9ed62032016-11-21 17:49:11 +010044#include <types/cli.h>
William Lallemand74c24fb2016-11-21 17:18:36 +010045#include <types/global.h>
46#include <types/dns.h>
William Lallemand9ed62032016-11-21 17:49:11 +010047#include <types/stats.h>
William Lallemand74c24fb2016-11-21 17:18:36 +010048
Willy Tarreau609aad92018-11-22 08:31:09 +010049#include <proto/activity.h>
William Lallemand74c24fb2016-11-21 17:18:36 +010050#include <proto/backend.h>
51#include <proto/channel.h>
52#include <proto/checks.h>
53#include <proto/compression.h>
William Lallemand9ed62032016-11-21 17:49:11 +010054#include <proto/stats.h>
William Lallemand74c24fb2016-11-21 17:18:36 +010055#include <proto/fd.h>
56#include <proto/freq_ctr.h>
57#include <proto/frontend.h>
58#include <proto/log.h>
59#include <proto/pattern.h>
60#include <proto/pipe.h>
William Lallemandce83b4a2018-10-26 14:47:30 +020061#include <proto/protocol.h>
William Lallemand74c24fb2016-11-21 17:18:36 +010062#include <proto/listener.h>
63#include <proto/map.h>
William Lallemand74c24fb2016-11-21 17:18:36 +010064#include <proto/proxy.h>
65#include <proto/sample.h>
66#include <proto/session.h>
67#include <proto/stream.h>
68#include <proto/server.h>
Willy Tarreauc125cef2019-05-10 09:58:43 +020069#include <proto/ssl_sock.h>
William Lallemand74c24fb2016-11-21 17:18:36 +010070#include <proto/stream_interface.h>
71#include <proto/task.h>
Willy Tarreau7a4a0ac2017-07-25 19:32:50 +020072#include <proto/proto_udp.h>
William Lallemand74c24fb2016-11-21 17:18:36 +010073
Aurélien Nephtaliabbf6072018-04-18 13:26:46 +020074#define PAYLOAD_PATTERN "<<"
75
William Lallemand74c24fb2016-11-21 17:18:36 +010076static struct applet cli_applet;
77
78static const char stats_sock_usage_msg[] =
79 "Unknown command. Please enter one of the following commands only :\n"
William Lallemand74c24fb2016-11-21 17:18:36 +010080 " help : this message\n"
81 " prompt : toggle interactive mode with prompt\n"
82 " quit : disconnect\n"
William Lallemand74c24fb2016-11-21 17:18:36 +010083 "";
84
85static const char stats_permission_denied_msg[] =
86 "Permission denied\n"
87 "";
88
89
Christopher Faulet1bc04c72017-10-29 20:14:08 +010090static THREAD_LOCAL char *dynamic_usage_msg = NULL;
William Lallemand74c24fb2016-11-21 17:18:36 +010091
92/* List head of cli keywords */
93static struct cli_kw_list cli_keywords = {
94 .list = LIST_HEAD_INIT(cli_keywords.list)
95};
96
97extern const char *stat_status_codes[];
98
William Lallemand8a022572018-10-26 14:47:35 +020099static struct proxy *mworker_proxy; /* CLI proxy of the master */
100
Aurélien Nephtaliabbf6072018-04-18 13:26:46 +0200101static char *cli_gen_usage_msg(struct appctx *appctx)
William Lallemand74c24fb2016-11-21 17:18:36 +0100102{
103 struct cli_kw_list *kw_list;
104 struct cli_kw *kw;
Willy Tarreau83061a82018-07-13 11:56:34 +0200105 struct buffer *tmp = get_trash_chunk();
106 struct buffer out;
William Lallemand74c24fb2016-11-21 17:18:36 +0100107
108 free(dynamic_usage_msg);
109 dynamic_usage_msg = NULL;
110
111 if (LIST_ISEMPTY(&cli_keywords.list))
Aurélien Nephtaliabbf6072018-04-18 13:26:46 +0200112 goto end;
William Lallemand74c24fb2016-11-21 17:18:36 +0100113
114 chunk_reset(tmp);
115 chunk_strcat(tmp, stats_sock_usage_msg);
116 list_for_each_entry(kw_list, &cli_keywords.list, list) {
117 kw = &kw_list->kw[0];
William Lallemand0154edc2018-05-15 11:50:04 +0200118 while (kw->str_kw[0]) {
William Lallemand14721be2018-10-26 14:47:37 +0200119
120 /* in a worker or normal process, don't display master only commands */
121 if (master == 0 && (kw->level & ACCESS_MASTER_ONLY))
122 goto next_kw;
123
124 /* in master don't displays if we don't have the master bits */
125 if (master == 1 && !(kw->level & (ACCESS_MASTER_ONLY|ACCESS_MASTER)))
126 goto next_kw;
127
William Lallemand0154edc2018-05-15 11:50:04 +0200128 if (kw->usage)
129 chunk_appendf(tmp, " %s\n", kw->usage);
William Lallemand14721be2018-10-26 14:47:37 +0200130
131next_kw:
132
William Lallemand74c24fb2016-11-21 17:18:36 +0100133 kw++;
134 }
135 }
136 chunk_init(&out, NULL, 0);
137 chunk_dup(&out, tmp);
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200138 dynamic_usage_msg = out.area;
Aurélien Nephtaliabbf6072018-04-18 13:26:46 +0200139
140end:
141 if (dynamic_usage_msg) {
142 appctx->ctx.cli.severity = LOG_INFO;
143 appctx->ctx.cli.msg = dynamic_usage_msg;
144 }
145 else {
146 appctx->ctx.cli.severity = LOG_INFO;
147 appctx->ctx.cli.msg = stats_sock_usage_msg;
148 }
149 appctx->st0 = CLI_ST_PRINT;
150
William Lallemand74c24fb2016-11-21 17:18:36 +0100151 return dynamic_usage_msg;
152}
153
154struct cli_kw* cli_find_kw(char **args)
155{
156 struct cli_kw_list *kw_list;
157 struct cli_kw *kw;/* current cli_kw */
158 char **tmp_args;
159 const char **tmp_str_kw;
160 int found = 0;
161
162 if (LIST_ISEMPTY(&cli_keywords.list))
163 return NULL;
164
165 list_for_each_entry(kw_list, &cli_keywords.list, list) {
166 kw = &kw_list->kw[0];
167 while (*kw->str_kw) {
168 tmp_args = args;
169 tmp_str_kw = kw->str_kw;
170 while (*tmp_str_kw) {
171 if (strcmp(*tmp_str_kw, *tmp_args) == 0) {
172 found = 1;
173 } else {
174 found = 0;
175 break;
176 }
177 tmp_args++;
178 tmp_str_kw++;
179 }
180 if (found)
181 return (kw);
182 kw++;
183 }
184 }
185 return NULL;
186}
187
188void cli_register_kw(struct cli_kw_list *kw_list)
189{
190 LIST_ADDQ(&cli_keywords.list, &kw_list->list);
191}
192
193
194/* allocate a new stats frontend named <name>, and return it
195 * (or NULL in case of lack of memory).
196 */
197static struct proxy *alloc_stats_fe(const char *name, const char *file, int line)
198{
199 struct proxy *fe;
200
201 fe = calloc(1, sizeof(*fe));
202 if (!fe)
203 return NULL;
204
205 init_new_proxy(fe);
Olivier Houchardfbc74e82017-11-24 16:54:05 +0100206 fe->next = proxies_list;
207 proxies_list = fe;
William Lallemand74c24fb2016-11-21 17:18:36 +0100208 fe->last_change = now.tv_sec;
209 fe->id = strdup("GLOBAL");
210 fe->cap = PR_CAP_FE;
211 fe->maxconn = 10; /* default to 10 concurrent connections */
212 fe->timeout.client = MS_TO_TICKS(10000); /* default timeout of 10 seconds */
213 fe->conf.file = strdup(file);
214 fe->conf.line = line;
215 fe->accept = frontend_accept;
216 fe->default_target = &cli_applet.obj_type;
217
218 /* the stats frontend is the only one able to assign ID #0 */
219 fe->conf.id.key = fe->uuid = 0;
220 eb32_insert(&used_proxy_id, &fe->conf.id);
221 return fe;
222}
223
224/* This function parses a "stats" statement in the "global" section. It returns
225 * -1 if there is any error, otherwise zero. If it returns -1, it will write an
226 * error message into the <err> buffer which will be preallocated. The trailing
227 * '\n' must not be written. The function must be called with <args> pointing to
228 * the first word after "stats".
229 */
230static int stats_parse_global(char **args, int section_type, struct proxy *curpx,
231 struct proxy *defpx, const char *file, int line,
232 char **err)
233{
234 struct bind_conf *bind_conf;
235 struct listener *l;
236
237 if (!strcmp(args[1], "socket")) {
238 int cur_arg;
239
240 if (*args[2] == 0) {
241 memprintf(err, "'%s %s' in global section expects an address or a path to a UNIX socket", args[0], args[1]);
242 return -1;
243 }
244
245 if (!global.stats_fe) {
246 if ((global.stats_fe = alloc_stats_fe("GLOBAL", file, line)) == NULL) {
247 memprintf(err, "'%s %s' : out of memory trying to allocate a frontend", args[0], args[1]);
248 return -1;
249 }
250 }
251
Willy Tarreaua261e9b2016-12-22 20:44:00 +0100252 bind_conf = bind_conf_alloc(global.stats_fe, file, line, args[2], xprt_get(XPRT_RAW));
William Lallemand07a62f72017-05-24 00:57:40 +0200253 bind_conf->level &= ~ACCESS_LVL_MASK;
254 bind_conf->level |= ACCESS_LVL_OPER; /* default access level */
William Lallemand74c24fb2016-11-21 17:18:36 +0100255
256 if (!str2listener(args[2], global.stats_fe, bind_conf, file, line, err)) {
257 memprintf(err, "parsing [%s:%d] : '%s %s' : %s\n",
258 file, line, args[0], args[1], err && *err ? *err : "error");
259 return -1;
260 }
261
262 cur_arg = 3;
263 while (*args[cur_arg]) {
264 static int bind_dumped;
265 struct bind_kw *kw;
266
267 kw = bind_find_kw(args[cur_arg]);
268 if (kw) {
269 if (!kw->parse) {
270 memprintf(err, "'%s %s' : '%s' option is not implemented in this version (check build options).",
271 args[0], args[1], args[cur_arg]);
272 return -1;
273 }
274
275 if (kw->parse(args, cur_arg, global.stats_fe, bind_conf, err) != 0) {
276 if (err && *err)
277 memprintf(err, "'%s %s' : '%s'", args[0], args[1], *err);
278 else
279 memprintf(err, "'%s %s' : error encountered while processing '%s'",
280 args[0], args[1], args[cur_arg]);
281 return -1;
282 }
283
284 cur_arg += 1 + kw->skip;
285 continue;
286 }
287
288 if (!bind_dumped) {
289 bind_dump_kws(err);
290 indent_msg(err, 4);
291 bind_dumped = 1;
292 }
293
294 memprintf(err, "'%s %s' : unknown keyword '%s'.%s%s",
295 args[0], args[1], args[cur_arg],
296 err && *err ? " Registered keywords :" : "", err && *err ? *err : "");
297 return -1;
298 }
299
300 list_for_each_entry(l, &bind_conf->listeners, by_bind) {
William Lallemand74c24fb2016-11-21 17:18:36 +0100301 l->accept = session_accept_fd;
William Lallemand74c24fb2016-11-21 17:18:36 +0100302 l->default_target = global.stats_fe->default_target;
303 l->options |= LI_O_UNLIMITED; /* don't make the peers subject to global limits */
304 l->nice = -64; /* we want to boost priority for local stats */
Willy Tarreau18215cb2019-02-27 16:25:28 +0100305 global.maxsock++; /* for the listening socket */
William Lallemand74c24fb2016-11-21 17:18:36 +0100306 }
307 }
308 else if (!strcmp(args[1], "timeout")) {
309 unsigned timeout;
310 const char *res = parse_time_err(args[2], &timeout, TIME_UNIT_MS);
311
Willy Tarreau9faebe32019-06-07 19:00:37 +0200312 if (res == PARSE_TIME_OVER) {
313 memprintf(err, "timer overflow in argument '%s' to '%s %s' (maximum value is 2147483647 ms or ~24.8 days)",
314 args[2], args[0], args[1]);
315 return -1;
316 }
317 else if (res == PARSE_TIME_UNDER) {
318 memprintf(err, "timer underflow in argument '%s' to '%s %s' (minimum non-null value is 1 ms)",
319 args[2], args[0], args[1]);
320 return -1;
321 }
322 else if (res) {
William Lallemand74c24fb2016-11-21 17:18:36 +0100323 memprintf(err, "'%s %s' : unexpected character '%c'", args[0], args[1], *res);
324 return -1;
325 }
326
327 if (!timeout) {
328 memprintf(err, "'%s %s' expects a positive value", args[0], args[1]);
329 return -1;
330 }
331 if (!global.stats_fe) {
332 if ((global.stats_fe = alloc_stats_fe("GLOBAL", file, line)) == NULL) {
333 memprintf(err, "'%s %s' : out of memory trying to allocate a frontend", args[0], args[1]);
334 return -1;
335 }
336 }
337 global.stats_fe->timeout.client = MS_TO_TICKS(timeout);
338 }
339 else if (!strcmp(args[1], "maxconn")) {
340 int maxconn = atol(args[2]);
341
342 if (maxconn <= 0) {
343 memprintf(err, "'%s %s' expects a positive value", args[0], args[1]);
344 return -1;
345 }
346
347 if (!global.stats_fe) {
348 if ((global.stats_fe = alloc_stats_fe("GLOBAL", file, line)) == NULL) {
349 memprintf(err, "'%s %s' : out of memory trying to allocate a frontend", args[0], args[1]);
350 return -1;
351 }
352 }
353 global.stats_fe->maxconn = maxconn;
354 }
355 else if (!strcmp(args[1], "bind-process")) { /* enable the socket only on some processes */
356 int cur_arg = 2;
357 unsigned long set = 0;
358
359 if (!global.stats_fe) {
360 if ((global.stats_fe = alloc_stats_fe("GLOBAL", file, line)) == NULL) {
361 memprintf(err, "'%s %s' : out of memory trying to allocate a frontend", args[0], args[1]);
362 return -1;
363 }
364 }
365
366 while (*args[cur_arg]) {
William Lallemand74c24fb2016-11-21 17:18:36 +0100367 if (strcmp(args[cur_arg], "all") == 0) {
368 set = 0;
369 break;
370 }
Willy Tarreauff9c9142019-02-07 10:39:36 +0100371 if (parse_process_number(args[cur_arg], &set, MAX_PROCS, NULL, err)) {
Christopher Fauletf1f0c5f2017-11-22 12:06:43 +0100372 memprintf(err, "'%s %s' : %s", args[0], args[1], *err);
William Lallemand74c24fb2016-11-21 17:18:36 +0100373 return -1;
374 }
375 cur_arg++;
376 }
377 global.stats_fe->bind_proc = set;
378 }
379 else {
380 memprintf(err, "'%s' only supports 'socket', 'maxconn', 'bind-process' and 'timeout' (got '%s')", args[0], args[1]);
381 return -1;
382 }
383 return 0;
384}
385
William Lallemand33d29e22019-04-01 11:30:06 +0200386/*
William Lallemand9a37fd02019-04-12 16:09:24 +0200387 * This function exports the bound addresses of a <frontend> in the environment
388 * variable <varname>. Those addresses are separated by semicolons and prefixed
389 * with their type (abns@, unix@, sockpair@ etc)
390 * Return -1 upon error, 0 otherwise
William Lallemand33d29e22019-04-01 11:30:06 +0200391 */
William Lallemand9a37fd02019-04-12 16:09:24 +0200392int listeners_setenv(struct proxy *frontend, const char *varname)
William Lallemand33d29e22019-04-01 11:30:06 +0200393{
394 struct buffer *trash = get_trash_chunk();
395 struct bind_conf *bind_conf;
396
William Lallemand9a37fd02019-04-12 16:09:24 +0200397 if (frontend) {
398 list_for_each_entry(bind_conf, &frontend->conf.bind, by_fe) {
William Lallemand33d29e22019-04-01 11:30:06 +0200399 struct listener *l;
400
401 list_for_each_entry(l, &bind_conf->listeners, by_bind) {
402 char addr[46];
403 char port[6];
404
William Lallemand620072b2019-04-12 16:09:25 +0200405 /* separate listener by semicolons */
406 if (trash->data)
407 chunk_appendf(trash, ";");
408
William Lallemand33d29e22019-04-01 11:30:06 +0200409 if (l->addr.ss_family == AF_UNIX) {
410 const struct sockaddr_un *un;
411
412 un = (struct sockaddr_un *)&l->addr;
413 if (un->sun_path[0] == '\0') {
414 chunk_appendf(trash, "abns@%s", un->sun_path+1);
415 } else {
416 chunk_appendf(trash, "unix@%s", un->sun_path);
417 }
418 } else if (l->addr.ss_family == AF_INET) {
419 addr_to_str(&l->addr, addr, sizeof(addr));
420 port_to_str(&l->addr, port, sizeof(port));
421 chunk_appendf(trash, "ipv4@%s:%s", addr, port);
422 } else if (l->addr.ss_family == AF_INET6) {
423 addr_to_str(&l->addr, addr, sizeof(addr));
424 port_to_str(&l->addr, port, sizeof(port));
425 chunk_appendf(trash, "ipv6@[%s]:%s", addr, port);
426 } else if (l->addr.ss_family == AF_CUST_SOCKPAIR) {
427 chunk_appendf(trash, "sockpair@%d", ((struct sockaddr_in *)&l->addr)->sin_addr.s_addr);
428 }
William Lallemand33d29e22019-04-01 11:30:06 +0200429 }
430 }
431 trash->area[trash->data++] = '\0';
William Lallemand9a37fd02019-04-12 16:09:24 +0200432 if (setenv(varname, trash->area, 1) < 0)
William Lallemand33d29e22019-04-01 11:30:06 +0200433 return -1;
434 }
435
436 return 0;
437}
438
William Lallemand9a37fd02019-04-12 16:09:24 +0200439int cli_socket_setenv()
440{
441 if (listeners_setenv(global.stats_fe, "HAPROXY_CLI") < 0)
442 return -1;
443 if (listeners_setenv(mworker_proxy, "HAPROXY_MASTER_CLI") < 0)
444 return -1;
445
446 return 0;
447}
448
William Lallemand33d29e22019-04-01 11:30:06 +0200449REGISTER_CONFIG_POSTPARSER("cli", cli_socket_setenv);
450
Willy Tarreaude57a572016-11-23 17:01:39 +0100451/* Verifies that the CLI at least has a level at least as high as <level>
452 * (typically ACCESS_LVL_ADMIN). Returns 1 if OK, otherwise 0. In case of
453 * failure, an error message is prepared and the appctx's state is adjusted
454 * to print it so that a return 1 is enough to abort any processing.
455 */
456int cli_has_level(struct appctx *appctx, int level)
457{
Willy Tarreaude57a572016-11-23 17:01:39 +0100458
William Lallemandf630d012018-12-13 09:05:44 +0100459 if ((appctx->cli_level & ACCESS_LVL_MASK) < level) {
Andjelko Iharosc3680ec2017-07-20 16:49:14 +0200460 appctx->ctx.cli.severity = LOG_ERR;
Willy Tarreaude57a572016-11-23 17:01:39 +0100461 appctx->ctx.cli.msg = stats_permission_denied_msg;
Willy Tarreau3b6e5472016-11-24 15:53:53 +0100462 appctx->st0 = CLI_ST_PRINT;
Willy Tarreaude57a572016-11-23 17:01:39 +0100463 return 0;
464 }
William Lallemand74c24fb2016-11-21 17:18:36 +0100465 return 1;
466}
467
William Lallemandb7ea1412018-12-13 09:05:47 +0100468/* same as cli_has_level but for the CLI proxy and without error message */
469int pcli_has_level(struct stream *s, int level)
470{
471 if ((s->pcli_flags & ACCESS_LVL_MASK) < level) {
472 return 0;
473 }
474 return 1;
475}
476
Andjelko Iharosc4df59e2017-07-20 11:59:48 +0200477/* Returns severity_output for the current session if set, or default for the socket */
478static int cli_get_severity_output(struct appctx *appctx)
479{
480 if (appctx->cli_severity_output)
481 return appctx->cli_severity_output;
482 return strm_li(si_strm(appctx->owner))->bind_conf->severity_output;
483}
William Lallemand74c24fb2016-11-21 17:18:36 +0100484
Willy Tarreau41908562016-11-24 16:23:38 +0100485/* Processes the CLI interpreter on the stats socket. This function is called
486 * from the CLI's IO handler running in an appctx context. The function returns 1
487 * if the request was understood, otherwise zero. It is called with appctx->st0
488 * set to CLI_ST_GETREQ and presets ->st2 to 0 so that parsers don't have to do
489 * it. It will possilbly leave st0 to CLI_ST_CALLBACK if the keyword needs to
490 * have its own I/O handler called again. Most of the time, parsers will only
491 * set st0 to CLI_ST_PRINT and put their message to be displayed into cli.msg.
Willy Tarreaueaffde32016-12-16 17:59:25 +0100492 * If a keyword parser is NULL and an I/O handler is declared, the I/O handler
493 * will automatically be used.
William Lallemand74c24fb2016-11-21 17:18:36 +0100494 */
Aurélien Nephtaliabbf6072018-04-18 13:26:46 +0200495static int cli_parse_request(struct appctx *appctx)
William Lallemand74c24fb2016-11-21 17:18:36 +0100496{
Aurélien Nephtaliabbf6072018-04-18 13:26:46 +0200497 char *args[MAX_STATS_ARGS + 1], *p, *end, *payload = NULL;
498 int i = 0;
William Lallemand74c24fb2016-11-21 17:18:36 +0100499 struct cli_kw *kw;
William Lallemand74c24fb2016-11-21 17:18:36 +0100500
Aurélien Nephtaliabbf6072018-04-18 13:26:46 +0200501 appctx->st2 = 0;
502 memset(&appctx->ctx.cli, 0, sizeof(appctx->ctx.cli));
William Lallemand74c24fb2016-11-21 17:18:36 +0100503
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200504 p = appctx->chunk->area;
505 end = p + appctx->chunk->data;
William Lallemand74c24fb2016-11-21 17:18:36 +0100506
Aurélien Nephtaliabbf6072018-04-18 13:26:46 +0200507 /*
508 * Get the payload start if there is one.
509 * For the sake of simplicity, the payload pattern is looked up
510 * everywhere from the start of the input but it can only be found
511 * at the end of the first line if APPCTX_CLI_ST1_PAYLOAD is set.
512 *
513 * The input string was zero terminated so it is safe to use
514 * the str*() functions throughout the parsing
515 */
516 if (appctx->st1 & APPCTX_CLI_ST1_PAYLOAD) {
517 payload = strstr(p, PAYLOAD_PATTERN);
518 end = payload;
519 /* skip the pattern */
520 payload += strlen(PAYLOAD_PATTERN);
521 }
William Lallemand74c24fb2016-11-21 17:18:36 +0100522
Aurélien Nephtaliabbf6072018-04-18 13:26:46 +0200523 /*
524 * Get pointers on words.
525 * One extra slot is reserved to store a pointer on a null byte.
526 */
527 while (i < MAX_STATS_ARGS && p < end) {
528 int j, k;
William Lallemand74c24fb2016-11-21 17:18:36 +0100529
Aurélien Nephtaliabbf6072018-04-18 13:26:46 +0200530 /* skip leading spaces/tabs */
531 p += strspn(p, " \t");
532 if (!*p)
533 break;
William Lallemand74c24fb2016-11-21 17:18:36 +0100534
Aurélien Nephtaliabbf6072018-04-18 13:26:46 +0200535 args[i] = p;
536 p += strcspn(p, " \t");
537 *p++ = 0;
William Lallemand74c24fb2016-11-21 17:18:36 +0100538
Aurélien Nephtaliabbf6072018-04-18 13:26:46 +0200539 /* unescape backslashes (\) */
540 for (j = 0, k = 0; args[i][k]; k++) {
541 if (args[i][k] == '\\') {
542 if (args[i][k + 1] == '\\')
543 k++;
Dragan Dosena1c35ab2016-11-24 11:33:12 +0100544 else
545 continue;
546 }
Aurélien Nephtaliabbf6072018-04-18 13:26:46 +0200547 args[i][j] = args[i][k];
William Lallemand74c24fb2016-11-21 17:18:36 +0100548 j++;
549 }
Aurélien Nephtaliabbf6072018-04-18 13:26:46 +0200550 args[i][j] = 0;
William Lallemand74c24fb2016-11-21 17:18:36 +0100551
Aurélien Nephtaliabbf6072018-04-18 13:26:46 +0200552 i++;
553 }
554 /* fill unused slots */
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200555 p = appctx->chunk->area + appctx->chunk->data;
Aurélien Nephtaliabbf6072018-04-18 13:26:46 +0200556 for (; i < MAX_STATS_ARGS + 1; i++)
557 args[i] = p;
Willy Tarreau41908562016-11-24 16:23:38 +0100558
559 kw = cli_find_kw(args);
Willy Tarreaueaffde32016-12-16 17:59:25 +0100560 if (!kw)
Willy Tarreau41908562016-11-24 16:23:38 +0100561 return 0;
562
William Lallemand14721be2018-10-26 14:47:37 +0200563 /* in a worker or normal process, don't display master only commands */
564 if (master == 0 && (kw->level & ACCESS_MASTER_ONLY))
565 return 0;
566
567 /* in master don't displays if we don't have the master bits */
568 if (master == 1 && !(kw->level & (ACCESS_MASTER_ONLY|ACCESS_MASTER)))
569 return 0;
570
Willy Tarreau41908562016-11-24 16:23:38 +0100571 appctx->io_handler = kw->io_handler;
Emeric Brund6871f72017-06-29 19:54:13 +0200572 appctx->io_release = kw->io_release;
William Lallemandd4f20fa2019-10-25 21:10:14 +0200573
574 if (kw->parse && kw->parse(args, payload, appctx, kw->private) != 0)
575 goto fail;
576
577 /* kw->parse could set its own io_handler or io_release handler */
578 if (!appctx->io_handler)
579 goto fail;
580
581 appctx->st0 = CLI_ST_CALLBACK;
582 return 1;
583fail:
584 appctx->io_handler = NULL;
585 appctx->io_release = NULL;
Willy Tarreau41908562016-11-24 16:23:38 +0100586 return 1;
William Lallemand74c24fb2016-11-21 17:18:36 +0100587}
588
Andjelko Iharosc4df59e2017-07-20 11:59:48 +0200589/* prepends then outputs the argument msg with a syslog-type severity depending on severity_output value */
590static int cli_output_msg(struct channel *chn, const char *msg, int severity, int severity_output)
591{
Willy Tarreau83061a82018-07-13 11:56:34 +0200592 struct buffer *tmp;
Andjelko Iharosc4df59e2017-07-20 11:59:48 +0200593
594 if (likely(severity_output == CLI_SEVERITY_NONE))
Willy Tarreau06d80a92017-10-19 14:32:15 +0200595 return ci_putblk(chn, msg, strlen(msg));
Andjelko Iharosc4df59e2017-07-20 11:59:48 +0200596
597 tmp = get_trash_chunk();
598 chunk_reset(tmp);
599
600 if (severity < 0 || severity > 7) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100601 ha_warning("socket command feedback with invalid severity %d", severity);
Andjelko Iharosc4df59e2017-07-20 11:59:48 +0200602 chunk_printf(tmp, "[%d]: ", severity);
603 }
604 else {
605 switch (severity_output) {
606 case CLI_SEVERITY_NUMBER:
607 chunk_printf(tmp, "[%d]: ", severity);
608 break;
609 case CLI_SEVERITY_STRING:
610 chunk_printf(tmp, "[%s]: ", log_levels[severity]);
611 break;
612 default:
Christopher Faulet767a84b2017-11-24 16:50:31 +0100613 ha_warning("Unrecognized severity output %d", severity_output);
Andjelko Iharosc4df59e2017-07-20 11:59:48 +0200614 }
615 }
616 chunk_appendf(tmp, "%s", msg);
617
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200618 return ci_putblk(chn, tmp->area, strlen(tmp->area));
Andjelko Iharosc4df59e2017-07-20 11:59:48 +0200619}
620
William Lallemand74c24fb2016-11-21 17:18:36 +0100621/* This I/O handler runs as an applet embedded in a stream interface. It is
622 * used to processes I/O from/to the stats unix socket. The system relies on a
623 * state machine handling requests and various responses. We read a request,
624 * then we process it and send the response, and we possibly display a prompt.
625 * Then we can read again. The state is stored in appctx->st0 and is one of the
Willy Tarreau3b6e5472016-11-24 15:53:53 +0100626 * CLI_ST_* constants. appctx->st1 is used to indicate whether prompt is enabled
William Lallemand74c24fb2016-11-21 17:18:36 +0100627 * or not.
628 */
629static void cli_io_handler(struct appctx *appctx)
630{
631 struct stream_interface *si = appctx->owner;
632 struct channel *req = si_oc(si);
633 struct channel *res = si_ic(si);
Andjelko Iharosc4df59e2017-07-20 11:59:48 +0200634 struct bind_conf *bind_conf = strm_li(si_strm(si))->bind_conf;
William Lallemand74c24fb2016-11-21 17:18:36 +0100635 int reql;
636 int len;
637
638 if (unlikely(si->state == SI_ST_DIS || si->state == SI_ST_CLO))
639 goto out;
640
Joseph Herlant008b3ce2018-11-25 12:51:45 -0800641 /* Check if the input buffer is available. */
Willy Tarreauc9fa0482018-07-10 17:43:27 +0200642 if (res->buf.size == 0) {
Willy Tarreau4b962a42018-11-15 11:03:21 +0100643 /* buf.size==0 means we failed to get a buffer and were
644 * already subscribed to a wait list to get a buffer.
645 */
Christopher Fauleta73e59b2016-12-09 17:30:18 +0100646 goto out;
647 }
648
William Lallemand74c24fb2016-11-21 17:18:36 +0100649 while (1) {
Willy Tarreau3b6e5472016-11-24 15:53:53 +0100650 if (appctx->st0 == CLI_ST_INIT) {
William Lallemand74c24fb2016-11-21 17:18:36 +0100651 /* Stats output not initialized yet */
652 memset(&appctx->ctx.stats, 0, sizeof(appctx->ctx.stats));
Andjelko Iharosc4df59e2017-07-20 11:59:48 +0200653 /* reset severity to default at init */
654 appctx->cli_severity_output = bind_conf->severity_output;
Willy Tarreau3b6e5472016-11-24 15:53:53 +0100655 appctx->st0 = CLI_ST_GETREQ;
William Lallemandf630d012018-12-13 09:05:44 +0100656 appctx->cli_level = bind_conf->level;
William Lallemand74c24fb2016-11-21 17:18:36 +0100657 }
Willy Tarreau3b6e5472016-11-24 15:53:53 +0100658 else if (appctx->st0 == CLI_ST_END) {
William Lallemand74c24fb2016-11-21 17:18:36 +0100659 /* Let's close for real now. We just close the request
660 * side, the conditions below will complete if needed.
661 */
662 si_shutw(si);
Aurélien Nephtaliabbf6072018-04-18 13:26:46 +0200663 free_trash_chunk(appctx->chunk);
William Lallemand74c24fb2016-11-21 17:18:36 +0100664 break;
665 }
Willy Tarreau3b6e5472016-11-24 15:53:53 +0100666 else if (appctx->st0 == CLI_ST_GETREQ) {
Aurélien Nephtaliabbf6072018-04-18 13:26:46 +0200667 char *str;
668
669 /* use a trash chunk to store received data */
670 if (!appctx->chunk) {
671 appctx->chunk = alloc_trash_chunk();
672 if (!appctx->chunk) {
673 appctx->st0 = CLI_ST_END;
674 continue;
675 }
676 }
677
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200678 str = appctx->chunk->area + appctx->chunk->data;
Aurélien Nephtaliabbf6072018-04-18 13:26:46 +0200679
William Lallemand74c24fb2016-11-21 17:18:36 +0100680 /* ensure we have some output room left in the event we
681 * would want to return some info right after parsing.
682 */
683 if (buffer_almost_full(si_ib(si))) {
Willy Tarreaudb398432018-11-15 11:08:52 +0100684 si_rx_room_blk(si);
William Lallemand74c24fb2016-11-21 17:18:36 +0100685 break;
686 }
687
Aurélien Nephtaliabbf6072018-04-18 13:26:46 +0200688 /* '- 1' is to ensure a null byte can always be inserted at the end */
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200689 reql = co_getline(si_oc(si), str,
690 appctx->chunk->size - appctx->chunk->data - 1);
William Lallemand74c24fb2016-11-21 17:18:36 +0100691 if (reql <= 0) { /* closed or EOL not found */
692 if (reql == 0)
693 break;
Willy Tarreau3b6e5472016-11-24 15:53:53 +0100694 appctx->st0 = CLI_ST_END;
William Lallemand74c24fb2016-11-21 17:18:36 +0100695 continue;
696 }
697
Aurélien Nephtaliabbf6072018-04-18 13:26:46 +0200698 if (!(appctx->st1 & APPCTX_CLI_ST1_PAYLOAD)) {
699 /* seek for a possible unescaped semi-colon. If we find
700 * one, we replace it with an LF and skip only this part.
701 */
702 for (len = 0; len < reql; len++) {
703 if (str[len] == '\\') {
704 len++;
705 continue;
706 }
707 if (str[len] == ';') {
708 str[len] = '\n';
709 reql = len + 1;
710 break;
711 }
William Lallemand74c24fb2016-11-21 17:18:36 +0100712 }
713 }
714
715 /* now it is time to check that we have a full line,
716 * remove the trailing \n and possibly \r, then cut the
717 * line.
718 */
719 len = reql - 1;
Aurélien Nephtaliabbf6072018-04-18 13:26:46 +0200720 if (str[len] != '\n') {
Willy Tarreau3b6e5472016-11-24 15:53:53 +0100721 appctx->st0 = CLI_ST_END;
William Lallemand74c24fb2016-11-21 17:18:36 +0100722 continue;
723 }
724
Aurélien Nephtaliabbf6072018-04-18 13:26:46 +0200725 if (len && str[len-1] == '\r')
William Lallemand74c24fb2016-11-21 17:18:36 +0100726 len--;
727
Aurélien Nephtaliabbf6072018-04-18 13:26:46 +0200728 str[len] = '\0';
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200729 appctx->chunk->data += len;
Aurélien Nephtaliabbf6072018-04-18 13:26:46 +0200730
731 if (appctx->st1 & APPCTX_CLI_ST1_PAYLOAD) {
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200732 appctx->chunk->area[appctx->chunk->data] = '\n';
733 appctx->chunk->area[appctx->chunk->data + 1] = 0;
734 appctx->chunk->data++;
Aurélien Nephtaliabbf6072018-04-18 13:26:46 +0200735 }
William Lallemand74c24fb2016-11-21 17:18:36 +0100736
Willy Tarreau3b6e5472016-11-24 15:53:53 +0100737 appctx->st0 = CLI_ST_PROMPT;
Aurélien Nephtaliabbf6072018-04-18 13:26:46 +0200738
739 if (appctx->st1 & APPCTX_CLI_ST1_PAYLOAD) {
740 /* empty line */
741 if (!len) {
742 /* remove the last two \n */
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200743 appctx->chunk->data -= 2;
744 appctx->chunk->area[appctx->chunk->data] = 0;
Aurélien Nephtaliabbf6072018-04-18 13:26:46 +0200745
746 if (!cli_parse_request(appctx))
747 cli_gen_usage_msg(appctx);
748
749 chunk_reset(appctx->chunk);
750 /* NB: cli_sock_parse_request() may have put
751 * another CLI_ST_O_* into appctx->st0.
752 */
753
754 appctx->st1 &= ~APPCTX_CLI_ST1_PAYLOAD;
William Lallemand74c24fb2016-11-21 17:18:36 +0100755 }
William Lallemand74c24fb2016-11-21 17:18:36 +0100756 }
Aurélien Nephtaliabbf6072018-04-18 13:26:46 +0200757 else {
758 /*
759 * Look for the "payload start" pattern at the end of a line
760 * Its location is not remembered here, this is just to switch
761 * to a gathering mode.
William Lallemand74c24fb2016-11-21 17:18:36 +0100762 */
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200763 if (!strcmp(appctx->chunk->area + appctx->chunk->data - strlen(PAYLOAD_PATTERN), PAYLOAD_PATTERN))
Aurélien Nephtaliabbf6072018-04-18 13:26:46 +0200764 appctx->st1 |= APPCTX_CLI_ST1_PAYLOAD;
Andjelko Iharosc3680ec2017-07-20 16:49:14 +0200765 else {
Aurélien Nephtaliabbf6072018-04-18 13:26:46 +0200766 /* no payload, the command is complete: parse the request */
767 if (!cli_parse_request(appctx))
768 cli_gen_usage_msg(appctx);
769
770 chunk_reset(appctx->chunk);
Andjelko Iharosc3680ec2017-07-20 16:49:14 +0200771 }
William Lallemand74c24fb2016-11-21 17:18:36 +0100772 }
773
774 /* re-adjust req buffer */
Willy Tarreau06d80a92017-10-19 14:32:15 +0200775 co_skip(si_oc(si), reql);
William Lallemand74c24fb2016-11-21 17:18:36 +0100776 req->flags |= CF_READ_DONTWAIT; /* we plan to read small requests */
777 }
778 else { /* output functions */
779 switch (appctx->st0) {
Willy Tarreau3b6e5472016-11-24 15:53:53 +0100780 case CLI_ST_PROMPT:
William Lallemand74c24fb2016-11-21 17:18:36 +0100781 break;
Willy Tarreau3b6e5472016-11-24 15:53:53 +0100782 case CLI_ST_PRINT:
Andjelko Iharosc4df59e2017-07-20 11:59:48 +0200783 if (cli_output_msg(res, appctx->ctx.cli.msg, appctx->ctx.cli.severity,
784 cli_get_severity_output(appctx)) != -1)
Willy Tarreau3b6e5472016-11-24 15:53:53 +0100785 appctx->st0 = CLI_ST_PROMPT;
William Lallemand74c24fb2016-11-21 17:18:36 +0100786 else
Willy Tarreaudb398432018-11-15 11:08:52 +0100787 si_rx_room_blk(si);
William Lallemand74c24fb2016-11-21 17:18:36 +0100788 break;
Aurélien Nephtalic511b7c2018-04-16 18:50:19 +0200789 case CLI_ST_PRINT_FREE: {
790 const char *msg = appctx->ctx.cli.err;
791
792 if (!msg)
793 msg = "Out of memory.\n";
794
795 if (cli_output_msg(res, msg, LOG_ERR, cli_get_severity_output(appctx)) != -1) {
William Lallemand74c24fb2016-11-21 17:18:36 +0100796 free(appctx->ctx.cli.err);
Willy Tarreau3b6e5472016-11-24 15:53:53 +0100797 appctx->st0 = CLI_ST_PROMPT;
William Lallemand74c24fb2016-11-21 17:18:36 +0100798 }
799 else
Willy Tarreaudb398432018-11-15 11:08:52 +0100800 si_rx_room_blk(si);
William Lallemand74c24fb2016-11-21 17:18:36 +0100801 break;
Aurélien Nephtalic511b7c2018-04-16 18:50:19 +0200802 }
Willy Tarreau3b6e5472016-11-24 15:53:53 +0100803 case CLI_ST_CALLBACK: /* use custom pointer */
William Lallemand74c24fb2016-11-21 17:18:36 +0100804 if (appctx->io_handler)
805 if (appctx->io_handler(appctx)) {
Willy Tarreau3b6e5472016-11-24 15:53:53 +0100806 appctx->st0 = CLI_ST_PROMPT;
William Lallemand74c24fb2016-11-21 17:18:36 +0100807 if (appctx->io_release) {
808 appctx->io_release(appctx);
809 appctx->io_release = NULL;
810 }
811 }
812 break;
813 default: /* abnormal state */
814 si->flags |= SI_FL_ERR;
815 break;
816 }
817
818 /* The post-command prompt is either LF alone or LF + '> ' in interactive mode */
Willy Tarreau3b6e5472016-11-24 15:53:53 +0100819 if (appctx->st0 == CLI_ST_PROMPT) {
Aurélien Nephtaliabbf6072018-04-18 13:26:46 +0200820 const char *prompt = "";
821
822 if (appctx->st1 & APPCTX_CLI_ST1_PROMPT) {
823 /*
824 * when entering a payload with interactive mode, change the prompt
825 * to emphasize that more data can still be sent
826 */
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200827 if (appctx->chunk->data && appctx->st1 & APPCTX_CLI_ST1_PAYLOAD)
Aurélien Nephtaliabbf6072018-04-18 13:26:46 +0200828 prompt = "+ ";
829 else
830 prompt = "\n> ";
831 }
832 else {
William Lallemand1bd140e2019-07-01 10:56:15 +0200833 if (!(appctx->st1 & (APPCTX_CLI_ST1_PAYLOAD|APPCTX_CLI_ST1_NOLF)))
Aurélien Nephtaliabbf6072018-04-18 13:26:46 +0200834 prompt = "\n";
835 }
836
837 if (ci_putstr(si_ic(si), prompt) != -1)
Willy Tarreau3b6e5472016-11-24 15:53:53 +0100838 appctx->st0 = CLI_ST_GETREQ;
William Lallemand74c24fb2016-11-21 17:18:36 +0100839 else
Willy Tarreaudb398432018-11-15 11:08:52 +0100840 si_rx_room_blk(si);
William Lallemand74c24fb2016-11-21 17:18:36 +0100841 }
842
843 /* If the output functions are still there, it means they require more room. */
Willy Tarreau3b6e5472016-11-24 15:53:53 +0100844 if (appctx->st0 >= CLI_ST_OUTPUT)
William Lallemand74c24fb2016-11-21 17:18:36 +0100845 break;
846
847 /* Now we close the output if one of the writers did so,
848 * or if we're not in interactive mode and the request
849 * buffer is empty. This still allows pipelined requests
850 * to be sent in non-interactive mode.
851 */
William Lallemand3de09d52018-12-11 16:10:56 +0100852 if (((res->flags & (CF_SHUTW|CF_SHUTW_NOW))) ||
853 (!(appctx->st1 & APPCTX_CLI_ST1_PROMPT) && !co_data(req) && (!(appctx->st1 & APPCTX_CLI_ST1_PAYLOAD)))) {
Willy Tarreau3b6e5472016-11-24 15:53:53 +0100854 appctx->st0 = CLI_ST_END;
William Lallemand74c24fb2016-11-21 17:18:36 +0100855 continue;
856 }
857
858 /* switch state back to GETREQ to read next requests */
Willy Tarreau3b6e5472016-11-24 15:53:53 +0100859 appctx->st0 = CLI_ST_GETREQ;
William Lallemand1bd140e2019-07-01 10:56:15 +0200860 /* reactivate the \n at the end of the response for the next command */
861 appctx->st1 &= ~APPCTX_CLI_ST1_NOLF;
William Lallemand74c24fb2016-11-21 17:18:36 +0100862 }
863 }
864
865 if ((res->flags & CF_SHUTR) && (si->state == SI_ST_EST)) {
866 DPRINTF(stderr, "%s@%d: si to buf closed. req=%08x, res=%08x, st=%d\n",
867 __FUNCTION__, __LINE__, req->flags, res->flags, si->state);
868 /* Other side has closed, let's abort if we have no more processing to do
869 * and nothing more to consume. This is comparable to a broken pipe, so
870 * we forward the close to the request side so that it flows upstream to
871 * the client.
872 */
873 si_shutw(si);
874 }
875
Willy Tarreau3b6e5472016-11-24 15:53:53 +0100876 if ((req->flags & CF_SHUTW) && (si->state == SI_ST_EST) && (appctx->st0 < CLI_ST_OUTPUT)) {
William Lallemand74c24fb2016-11-21 17:18:36 +0100877 DPRINTF(stderr, "%s@%d: buf to si closed. req=%08x, res=%08x, st=%d\n",
878 __FUNCTION__, __LINE__, req->flags, res->flags, si->state);
879 /* We have no more processing to do, and nothing more to send, and
880 * the client side has closed. So we'll forward this state downstream
881 * on the response buffer.
882 */
883 si_shutr(si);
884 res->flags |= CF_READ_NULL;
885 }
886
887 out:
Christopher Faulet45073512018-07-20 10:16:29 +0200888 DPRINTF(stderr, "%s@%d: st=%d, rqf=%x, rpf=%x, rqh=%lu, rqs=%lu, rh=%lu, rs=%lu\n",
William Lallemand74c24fb2016-11-21 17:18:36 +0100889 __FUNCTION__, __LINE__,
Christopher Faulet45073512018-07-20 10:16:29 +0200890 si->state, req->flags, res->flags, ci_data(req), co_data(req), ci_data(res), co_data(res));
William Lallemand74c24fb2016-11-21 17:18:36 +0100891}
892
William Lallemand74c24fb2016-11-21 17:18:36 +0100893/* This is called when the stream interface is closed. For instance, upon an
894 * external abort, we won't call the i/o handler anymore so we may need to
895 * remove back references to the stream currently being dumped.
896 */
897static void cli_release_handler(struct appctx *appctx)
898{
899 if (appctx->io_release) {
900 appctx->io_release(appctx);
901 appctx->io_release = NULL;
902 }
Willy Tarreau3b6e5472016-11-24 15:53:53 +0100903 else if (appctx->st0 == CLI_ST_PRINT_FREE) {
William Lallemand74c24fb2016-11-21 17:18:36 +0100904 free(appctx->ctx.cli.err);
905 appctx->ctx.cli.err = NULL;
906 }
William Lallemand74c24fb2016-11-21 17:18:36 +0100907}
908
909/* This function dumps all environmnent variables to the buffer. It returns 0
910 * if the output buffer is full and it needs to be called again, otherwise
Willy Tarreauf6710f82016-12-16 17:45:44 +0100911 * non-zero. Dumps only one entry if st2 == STAT_ST_END. It uses cli.p0 as the
912 * pointer to the current variable.
William Lallemand74c24fb2016-11-21 17:18:36 +0100913 */
Willy Tarreau0a739292016-11-22 20:21:23 +0100914static int cli_io_handler_show_env(struct appctx *appctx)
William Lallemand74c24fb2016-11-21 17:18:36 +0100915{
Willy Tarreau0a739292016-11-22 20:21:23 +0100916 struct stream_interface *si = appctx->owner;
Willy Tarreauf6710f82016-12-16 17:45:44 +0100917 char **var = appctx->ctx.cli.p0;
William Lallemand74c24fb2016-11-21 17:18:36 +0100918
919 if (unlikely(si_ic(si)->flags & (CF_WRITE_ERROR|CF_SHUTW)))
920 return 1;
921
922 chunk_reset(&trash);
923
924 /* we have two inner loops here, one for the proxy, the other one for
925 * the buffer.
926 */
Willy Tarreauf6710f82016-12-16 17:45:44 +0100927 while (*var) {
928 chunk_printf(&trash, "%s\n", *var);
William Lallemand74c24fb2016-11-21 17:18:36 +0100929
Willy Tarreau06d80a92017-10-19 14:32:15 +0200930 if (ci_putchk(si_ic(si), &trash) == -1) {
Willy Tarreaudb398432018-11-15 11:08:52 +0100931 si_rx_room_blk(si);
William Lallemand74c24fb2016-11-21 17:18:36 +0100932 return 0;
933 }
934 if (appctx->st2 == STAT_ST_END)
935 break;
Willy Tarreauf6710f82016-12-16 17:45:44 +0100936 var++;
937 appctx->ctx.cli.p0 = var;
William Lallemand74c24fb2016-11-21 17:18:36 +0100938 }
939
940 /* dump complete */
941 return 1;
942}
943
Willy Tarreau7a4a0ac2017-07-25 19:32:50 +0200944/* This function dumps all file descriptors states (or the requested one) to
945 * the buffer. It returns 0 if the output buffer is full and it needs to be
946 * called again, otherwise non-zero. Dumps only one entry if st2 == STAT_ST_END.
947 * It uses cli.i0 as the fd number to restart from.
948 */
949static int cli_io_handler_show_fd(struct appctx *appctx)
950{
951 struct stream_interface *si = appctx->owner;
952 int fd = appctx->ctx.cli.i0;
Willy Tarreauca1b1572018-12-18 15:45:11 +0100953 int ret = 1;
Willy Tarreau7a4a0ac2017-07-25 19:32:50 +0200954
955 if (unlikely(si_ic(si)->flags & (CF_WRITE_ERROR|CF_SHUTW)))
Willy Tarreauca1b1572018-12-18 15:45:11 +0100956 goto end;
Willy Tarreau7a4a0ac2017-07-25 19:32:50 +0200957
958 chunk_reset(&trash);
959
Willy Tarreauca1b1572018-12-18 15:45:11 +0100960 /* isolate the threads once per round. We're limited to a buffer worth
961 * of output anyway, it cannot last very long.
962 */
963 thread_isolate();
964
Willy Tarreau7a4a0ac2017-07-25 19:32:50 +0200965 /* we have two inner loops here, one for the proxy, the other one for
966 * the buffer.
967 */
Aurélien Nephtali498a1152018-03-09 18:51:16 +0100968 while (fd >= 0 && fd < global.maxsock) {
Willy Tarreau7a4a0ac2017-07-25 19:32:50 +0200969 struct fdtab fdt;
Willy Tarreau286ec682017-08-09 16:35:44 +0200970 struct listener *li = NULL;
971 struct server *sv = NULL;
972 struct proxy *px = NULL;
Willy Tarreaua833cd92018-03-29 13:19:37 +0200973 const struct mux_ops *mux = NULL;
Willy Tarreau35b1b482018-03-28 18:41:30 +0200974 void *ctx = NULL;
Willy Tarreau286ec682017-08-09 16:35:44 +0200975 uint32_t conn_flags = 0;
Willy Tarreaue9ca8072018-12-19 18:40:58 +0100976 int is_back = 0;
Willy Tarreau7a4a0ac2017-07-25 19:32:50 +0200977
978 fdt = fdtab[fd];
979
Willy Tarreauca1b1572018-12-18 15:45:11 +0100980 if (!fdt.owner)
Willy Tarreau017af242017-10-04 20:24:54 +0200981 goto skip; // closed
982
Willy Tarreau7a4a0ac2017-07-25 19:32:50 +0200983 if (fdt.iocb == conn_fd_handler) {
984 conn_flags = ((struct connection *)fdt.owner)->flags;
Willy Tarreau35b1b482018-03-28 18:41:30 +0200985 mux = ((struct connection *)fdt.owner)->mux;
Willy Tarreau3d2ee552018-12-19 14:12:10 +0100986 ctx = ((struct connection *)fdt.owner)->ctx;
Willy Tarreau7a4a0ac2017-07-25 19:32:50 +0200987 li = objt_listener(((struct connection *)fdt.owner)->target);
988 sv = objt_server(((struct connection *)fdt.owner)->target);
989 px = objt_proxy(((struct connection *)fdt.owner)->target);
Willy Tarreaue9ca8072018-12-19 18:40:58 +0100990 is_back = conn_is_back((struct connection *)fdt.owner);
Willy Tarreau7a4a0ac2017-07-25 19:32:50 +0200991 }
992 else if (fdt.iocb == listener_accept)
993 li = fdt.owner;
994
Willy Tarreau7a4a0ac2017-07-25 19:32:50 +0200995 chunk_printf(&trash,
Willy Tarreauc754b342018-03-30 15:00:15 +0200996 " %5d : st=0x%02x(R:%c%c%c W:%c%c%c) ev=0x%02x(%c%c%c%c%c) [%c%c] cnext=%d cprev=%d tmask=0x%lx umask=0x%lx owner=%p iocb=%p(%s)",
Willy Tarreau7a4a0ac2017-07-25 19:32:50 +0200997 fd,
998 fdt.state,
999 (fdt.state & FD_EV_POLLED_R) ? 'P' : 'p',
1000 (fdt.state & FD_EV_READY_R) ? 'R' : 'r',
1001 (fdt.state & FD_EV_ACTIVE_R) ? 'A' : 'a',
1002 (fdt.state & FD_EV_POLLED_W) ? 'P' : 'p',
1003 (fdt.state & FD_EV_READY_W) ? 'R' : 'r',
1004 (fdt.state & FD_EV_ACTIVE_W) ? 'A' : 'a',
1005 fdt.ev,
1006 (fdt.ev & FD_POLL_HUP) ? 'H' : 'h',
1007 (fdt.ev & FD_POLL_ERR) ? 'E' : 'e',
1008 (fdt.ev & FD_POLL_OUT) ? 'O' : 'o',
1009 (fdt.ev & FD_POLL_PRI) ? 'P' : 'p',
1010 (fdt.ev & FD_POLL_IN) ? 'I' : 'i',
Willy Tarreau7a4a0ac2017-07-25 19:32:50 +02001011 fdt.linger_risk ? 'L' : 'l',
1012 fdt.cloned ? 'C' : 'c',
Willy Tarreauc754b342018-03-30 15:00:15 +02001013 fdt.cache.next,
1014 fdt.cache.prev,
1015 fdt.thread_mask, fdt.update_mask,
Willy Tarreau7a4a0ac2017-07-25 19:32:50 +02001016 fdt.owner,
1017 fdt.iocb,
1018 (fdt.iocb == conn_fd_handler) ? "conn_fd_handler" :
1019 (fdt.iocb == dgram_fd_handler) ? "dgram_fd_handler" :
1020 (fdt.iocb == listener_accept) ? "listener_accept" :
Olivier Houchard79321b92018-07-26 17:55:11 +02001021 (fdt.iocb == poller_pipe_io_handler) ? "poller_pipe_io_handler" :
William Lallemanddb6bdfb2018-11-20 17:36:51 +01001022 (fdt.iocb == mworker_accept_wrapper) ? "mworker_accept_wrapper" :
Emeric Brund0e095c2019-04-19 17:15:28 +02001023#ifdef USE_OPENSSL
Willy Tarreau5db847a2019-05-09 14:13:35 +02001024#if (HA_OPENSSL_VERSION_NUMBER >= 0x1010000fL) && !defined(OPENSSL_NO_ASYNC)
Emeric Brund0e095c2019-04-19 17:15:28 +02001025 (fdt.iocb == ssl_async_fd_free) ? "ssl_async_fd_free" :
1026 (fdt.iocb == ssl_async_fd_handler) ? "ssl_async_fd_handler" :
1027#endif
1028#endif
Willy Tarreauc754b342018-03-30 15:00:15 +02001029 "unknown");
Willy Tarreau7a4a0ac2017-07-25 19:32:50 +02001030
1031 if (fdt.iocb == conn_fd_handler) {
Willy Tarreaue9ca8072018-12-19 18:40:58 +01001032 chunk_appendf(&trash, " back=%d cflg=0x%08x", is_back, conn_flags);
Willy Tarreau7a4a0ac2017-07-25 19:32:50 +02001033 if (px)
1034 chunk_appendf(&trash, " px=%s", px->id);
1035 else if (sv)
1036 chunk_appendf(&trash, " sv=%s/%s", sv->id, sv->proxy->id);
1037 else if (li)
1038 chunk_appendf(&trash, " fe=%s", li->bind_conf->frontend->id);
Willy Tarreau35b1b482018-03-28 18:41:30 +02001039
Willy Tarreaub011d8f2018-03-30 14:41:19 +02001040 if (mux) {
Willy Tarreau3d2ee552018-12-19 14:12:10 +01001041 chunk_appendf(&trash, " mux=%s ctx=%p", mux->name, ctx);
Willy Tarreaub011d8f2018-03-30 14:41:19 +02001042 if (mux->show_fd)
1043 mux->show_fd(&trash, fdt.owner);
1044 }
Willy Tarreau35b1b482018-03-28 18:41:30 +02001045 else
1046 chunk_appendf(&trash, " nomux");
Willy Tarreau7a4a0ac2017-07-25 19:32:50 +02001047 }
1048 else if (fdt.iocb == listener_accept) {
1049 chunk_appendf(&trash, " l.st=%s fe=%s",
1050 listener_state_str(li),
1051 li->bind_conf->frontend->id);
1052 }
1053
1054 chunk_appendf(&trash, "\n");
1055
Willy Tarreau06d80a92017-10-19 14:32:15 +02001056 if (ci_putchk(si_ic(si), &trash) == -1) {
Willy Tarreaudb398432018-11-15 11:08:52 +01001057 si_rx_room_blk(si);
Willy Tarreauca1b1572018-12-18 15:45:11 +01001058 appctx->ctx.cli.i0 = fd;
1059 ret = 0;
1060 break;
Willy Tarreau7a4a0ac2017-07-25 19:32:50 +02001061 }
1062 skip:
1063 if (appctx->st2 == STAT_ST_END)
1064 break;
1065
1066 fd++;
Willy Tarreau7a4a0ac2017-07-25 19:32:50 +02001067 }
1068
Willy Tarreauca1b1572018-12-18 15:45:11 +01001069 end:
Willy Tarreau7a4a0ac2017-07-25 19:32:50 +02001070 /* dump complete */
Willy Tarreauca1b1572018-12-18 15:45:11 +01001071
1072 thread_release();
1073 return ret;
Willy Tarreau7a4a0ac2017-07-25 19:32:50 +02001074}
1075
Willy Tarreaud80cb4e2018-01-20 19:30:13 +01001076/* This function dumps some activity counters used by developers and support to
1077 * rule out some hypothesis during bug reports. It returns 0 if the output
1078 * buffer is full and it needs to be called again, otherwise non-zero. It dumps
1079 * everything at once in the buffer and is not designed to do it in multiple
1080 * passes.
1081 */
1082static int cli_io_handler_show_activity(struct appctx *appctx)
1083{
1084 struct stream_interface *si = appctx->owner;
1085 int thr;
1086
1087 if (unlikely(si_ic(si)->flags & (CF_WRITE_ERROR|CF_SHUTW)))
1088 return 1;
1089
1090 chunk_reset(&trash);
1091
Willy Tarreaud78d08f2019-05-28 16:32:06 +02001092#undef SHOW_TOT
1093#define SHOW_TOT(t, x) \
Willy Tarreaua0211b82019-05-28 15:09:08 +02001094 do { \
1095 unsigned int _v[MAX_THREADS]; \
1096 unsigned int _tot; \
1097 const unsigned int _nbt = global.nbthread; \
1098 for (_tot = t = 0; t < _nbt; t++) \
1099 _tot += _v[t] = (x); \
1100 if (_nbt == 1) { \
1101 chunk_appendf(&trash, " %u\n", _tot); \
1102 break; \
1103 } \
1104 chunk_appendf(&trash, " %u [", _tot); \
1105 for (t = 0; t < _nbt; t++) \
1106 chunk_appendf(&trash, " %u", _v[t]); \
1107 chunk_appendf(&trash, " ]\n"); \
1108 } while (0)
1109
Willy Tarreaud78d08f2019-05-28 16:32:06 +02001110#undef SHOW_AVG
1111#define SHOW_AVG(t, x) \
1112 do { \
1113 unsigned int _v[MAX_THREADS]; \
1114 unsigned int _tot; \
1115 const unsigned int _nbt = global.nbthread; \
1116 for (_tot = t = 0; t < _nbt; t++) \
1117 _tot += _v[t] = (x); \
1118 if (_nbt == 1) { \
1119 chunk_appendf(&trash, " %u\n", _tot); \
1120 break; \
1121 } \
1122 chunk_appendf(&trash, " %u [", (_tot + _nbt/2) / _nbt); \
1123 for (t = 0; t < _nbt; t++) \
1124 chunk_appendf(&trash, " %u", _v[t]); \
1125 chunk_appendf(&trash, " ]\n"); \
1126 } while (0)
1127
Willy Tarreaua0211b82019-05-28 15:09:08 +02001128 chunk_appendf(&trash, "thread_id: %u (%u..%u)\n", tid + 1, 1, global.nbthread);
1129 chunk_appendf(&trash, "date_now: %lu.%06lu\n", (long)now.tv_sec, (long)now.tv_usec);
Willy Tarreaud78d08f2019-05-28 16:32:06 +02001130 chunk_appendf(&trash, "loops:"); SHOW_TOT(thr, activity[thr].loops);
1131 chunk_appendf(&trash, "wake_cache:"); SHOW_TOT(thr, activity[thr].wake_cache);
1132 chunk_appendf(&trash, "wake_tasks:"); SHOW_TOT(thr, activity[thr].wake_tasks);
1133 chunk_appendf(&trash, "wake_signal:"); SHOW_TOT(thr, activity[thr].wake_signal);
1134 chunk_appendf(&trash, "poll_exp:"); SHOW_TOT(thr, activity[thr].poll_exp);
1135 chunk_appendf(&trash, "poll_drop:"); SHOW_TOT(thr, activity[thr].poll_drop);
1136 chunk_appendf(&trash, "poll_dead:"); SHOW_TOT(thr, activity[thr].poll_dead);
1137 chunk_appendf(&trash, "poll_skip:"); SHOW_TOT(thr, activity[thr].poll_skip);
1138 chunk_appendf(&trash, "fd_lock:"); SHOW_TOT(thr, activity[thr].fd_lock);
1139 chunk_appendf(&trash, "conn_dead:"); SHOW_TOT(thr, activity[thr].conn_dead);
1140 chunk_appendf(&trash, "stream:"); SHOW_TOT(thr, activity[thr].stream);
Willy Tarreaua8b2ce02019-05-28 17:04:16 +02001141 chunk_appendf(&trash, "pool_fail:"); SHOW_TOT(thr, activity[thr].pool_fail);
1142 chunk_appendf(&trash, "buf_wait:"); SHOW_TOT(thr, activity[thr].buf_wait);
Willy Tarreaud78d08f2019-05-28 16:32:06 +02001143 chunk_appendf(&trash, "empty_rq:"); SHOW_TOT(thr, activity[thr].empty_rq);
1144 chunk_appendf(&trash, "long_rq:"); SHOW_TOT(thr, activity[thr].long_rq);
1145 chunk_appendf(&trash, "ctxsw:"); SHOW_TOT(thr, activity[thr].ctxsw);
1146 chunk_appendf(&trash, "tasksw:"); SHOW_TOT(thr, activity[thr].tasksw);
1147 chunk_appendf(&trash, "cpust_ms_tot:"); SHOW_TOT(thr, activity[thr].cpust_total / 2);
1148 chunk_appendf(&trash, "cpust_ms_1s:"); SHOW_TOT(thr, read_freq_ctr(&activity[thr].cpust_1s) / 2);
1149 chunk_appendf(&trash, "cpust_ms_15s:"); SHOW_TOT(thr, read_freq_ctr_period(&activity[thr].cpust_15s, 15000) / 2);
1150 chunk_appendf(&trash, "avg_loop_us:"); SHOW_AVG(thr, swrate_avg(activity[thr].avg_loop_us, TIME_STATS_SAMPLES));
1151 chunk_appendf(&trash, "accepted:"); SHOW_TOT(thr, activity[thr].accepted);
1152 chunk_appendf(&trash, "accq_pushed:"); SHOW_TOT(thr, activity[thr].accq_pushed);
1153 chunk_appendf(&trash, "accq_full:"); SHOW_TOT(thr, activity[thr].accq_full);
Willy Tarreaue6182842019-04-15 18:54:10 +02001154#ifdef USE_THREAD
Willy Tarreaud78d08f2019-05-28 16:32:06 +02001155 chunk_appendf(&trash, "accq_ring:"); SHOW_TOT(thr, (accept_queue_rings[thr].tail - accept_queue_rings[thr].head + ACCEPT_QUEUE_SIZE) % ACCEPT_QUEUE_SIZE);
Willy Tarreaue6182842019-04-15 18:54:10 +02001156#endif
Willy Tarreaud80cb4e2018-01-20 19:30:13 +01001157
Willy Tarreaud6a78502019-05-27 07:03:38 +02001158#if defined(DEBUG_DEV)
1159 /* keep these ones at the end */
Willy Tarreaud78d08f2019-05-28 16:32:06 +02001160 chunk_appendf(&trash, "ctr0:"); SHOW_TOT(thr, activity[thr].ctr0);
1161 chunk_appendf(&trash, "ctr1:"); SHOW_TOT(thr, activity[thr].ctr1);
1162 chunk_appendf(&trash, "ctr2:"); SHOW_TOT(thr, activity[thr].ctr2);
Willy Tarreaud6a78502019-05-27 07:03:38 +02001163#endif
Willy Tarreaud80cb4e2018-01-20 19:30:13 +01001164
1165 if (ci_putchk(si_ic(si), &trash) == -1) {
1166 chunk_reset(&trash);
1167 chunk_printf(&trash, "[output too large, cannot dump]\n");
Willy Tarreaudb398432018-11-15 11:08:52 +01001168 si_rx_room_blk(si);
Willy Tarreaud80cb4e2018-01-20 19:30:13 +01001169 }
1170
Willy Tarreaud78d08f2019-05-28 16:32:06 +02001171#undef SHOW_AVG
1172#undef SHOW_TOT
Willy Tarreaud80cb4e2018-01-20 19:30:13 +01001173 /* dump complete */
1174 return 1;
1175}
1176
William Lallemandeceddf72016-12-15 18:06:44 +01001177/*
Willy Tarreau3af9d832016-12-16 12:58:09 +01001178 * CLI IO handler for `show cli sockets`.
1179 * Uses ctx.cli.p0 to store the restart pointer.
William Lallemandeceddf72016-12-15 18:06:44 +01001180 */
1181static int cli_io_handler_show_cli_sock(struct appctx *appctx)
1182{
1183 struct bind_conf *bind_conf;
1184 struct stream_interface *si = appctx->owner;
1185
1186 chunk_reset(&trash);
1187
1188 switch (appctx->st2) {
1189 case STAT_ST_INIT:
1190 chunk_printf(&trash, "# socket lvl processes\n");
Willy Tarreau06d80a92017-10-19 14:32:15 +02001191 if (ci_putchk(si_ic(si), &trash) == -1) {
Willy Tarreaudb398432018-11-15 11:08:52 +01001192 si_rx_room_blk(si);
William Lallemandeceddf72016-12-15 18:06:44 +01001193 return 0;
1194 }
William Lallemandeceddf72016-12-15 18:06:44 +01001195 appctx->st2 = STAT_ST_LIST;
1196
1197 case STAT_ST_LIST:
1198 if (global.stats_fe) {
1199 list_for_each_entry(bind_conf, &global.stats_fe->conf.bind, by_fe) {
1200 struct listener *l;
1201
1202 /*
Willy Tarreau3af9d832016-12-16 12:58:09 +01001203 * get the latest dumped node in appctx->ctx.cli.p0
William Lallemandeceddf72016-12-15 18:06:44 +01001204 * if the current node is the first of the list
1205 */
1206
Willy Tarreau3af9d832016-12-16 12:58:09 +01001207 if (appctx->ctx.cli.p0 &&
1208 &bind_conf->by_fe == (&global.stats_fe->conf.bind)->n) {
William Lallemandeceddf72016-12-15 18:06:44 +01001209 /* change the current node to the latest dumped and continue the loop */
Willy Tarreau3af9d832016-12-16 12:58:09 +01001210 bind_conf = LIST_ELEM(appctx->ctx.cli.p0, typeof(bind_conf), by_fe);
William Lallemandeceddf72016-12-15 18:06:44 +01001211 continue;
1212 }
1213
1214 list_for_each_entry(l, &bind_conf->listeners, by_bind) {
1215
1216 char addr[46];
1217 char port[6];
1218
1219 if (l->addr.ss_family == AF_UNIX) {
1220 const struct sockaddr_un *un;
1221
1222 un = (struct sockaddr_un *)&l->addr;
William Lallemande58915f2019-04-01 11:30:05 +02001223 if (un->sun_path[0] == '\0') {
William Lallemand75812a72019-04-01 11:30:04 +02001224 chunk_appendf(&trash, "abns@%s ", un->sun_path+1);
William Lallemande58915f2019-04-01 11:30:05 +02001225 } else {
1226 chunk_appendf(&trash, "unix@%s ", un->sun_path);
1227 }
William Lallemandeceddf72016-12-15 18:06:44 +01001228 } else if (l->addr.ss_family == AF_INET) {
1229 addr_to_str(&l->addr, addr, sizeof(addr));
1230 port_to_str(&l->addr, port, sizeof(port));
William Lallemande58915f2019-04-01 11:30:05 +02001231 chunk_appendf(&trash, "ipv4@%s:%s ", addr, port);
William Lallemandeceddf72016-12-15 18:06:44 +01001232 } else if (l->addr.ss_family == AF_INET6) {
1233 addr_to_str(&l->addr, addr, sizeof(addr));
1234 port_to_str(&l->addr, port, sizeof(port));
William Lallemande58915f2019-04-01 11:30:05 +02001235 chunk_appendf(&trash, "ipv6@[%s]:%s ", addr, port);
William Lallemand26314342018-10-26 14:47:41 +02001236 } else if (l->addr.ss_family == AF_CUST_SOCKPAIR) {
1237 chunk_appendf(&trash, "sockpair@%d ", ((struct sockaddr_in *)&l->addr)->sin_addr.s_addr);
William Lallemandeceddf72016-12-15 18:06:44 +01001238 } else
William Lallemand26314342018-10-26 14:47:41 +02001239 chunk_appendf(&trash, "unknown ");
William Lallemandeceddf72016-12-15 18:06:44 +01001240
William Lallemand07a62f72017-05-24 00:57:40 +02001241 if ((bind_conf->level & ACCESS_LVL_MASK) == ACCESS_LVL_ADMIN)
William Lallemandeceddf72016-12-15 18:06:44 +01001242 chunk_appendf(&trash, "admin ");
William Lallemand07a62f72017-05-24 00:57:40 +02001243 else if ((bind_conf->level & ACCESS_LVL_MASK) == ACCESS_LVL_OPER)
1244 chunk_appendf(&trash, "operator ");
1245 else if ((bind_conf->level & ACCESS_LVL_MASK) == ACCESS_LVL_USER)
1246 chunk_appendf(&trash, "user ");
William Lallemandeceddf72016-12-15 18:06:44 +01001247 else
1248 chunk_appendf(&trash, " ");
1249
1250 if (bind_conf->bind_proc != 0) {
1251 int pos;
Willy Tarreau20c5e522016-12-16 12:50:55 +01001252 for (pos = 0; pos < 8 * sizeof(bind_conf->bind_proc); pos++) {
Willy Tarreau4305ac72016-12-16 12:56:31 +01001253 if (bind_conf->bind_proc & (1UL << pos)) {
William Lallemandeceddf72016-12-15 18:06:44 +01001254 chunk_appendf(&trash, "%d,", pos+1);
1255 }
1256 }
1257 /* replace the latest comma by a newline */
Willy Tarreau843b7cb2018-07-13 10:54:26 +02001258 trash.area[trash.data-1] = '\n';
William Lallemandeceddf72016-12-15 18:06:44 +01001259
1260 } else {
1261 chunk_appendf(&trash, "all\n");
1262 }
1263
Willy Tarreau06d80a92017-10-19 14:32:15 +02001264 if (ci_putchk(si_ic(si), &trash) == -1) {
Willy Tarreaudb398432018-11-15 11:08:52 +01001265 si_rx_room_blk(si);
William Lallemandeceddf72016-12-15 18:06:44 +01001266 return 0;
1267 }
1268 }
Willy Tarreau3af9d832016-12-16 12:58:09 +01001269 appctx->ctx.cli.p0 = &bind_conf->by_fe; /* store the latest list node dumped */
William Lallemandeceddf72016-12-15 18:06:44 +01001270 }
1271 }
1272 default:
1273 appctx->st2 = STAT_ST_FIN;
1274 return 1;
1275 }
1276}
1277
1278
Willy Tarreau0a739292016-11-22 20:21:23 +01001279/* parse a "show env" CLI request. Returns 0 if it needs to continue, 1 if it
Willy Tarreauf6710f82016-12-16 17:45:44 +01001280 * wants to stop here. It puts the variable to be dumped into cli.p0 if a single
1281 * variable is requested otherwise puts environ there.
Willy Tarreau0a739292016-11-22 20:21:23 +01001282 */
Aurélien Nephtaliabbf6072018-04-18 13:26:46 +02001283static int cli_parse_show_env(char **args, char *payload, struct appctx *appctx, void *private)
Willy Tarreau0a739292016-11-22 20:21:23 +01001284{
1285 extern char **environ;
Willy Tarreauf6710f82016-12-16 17:45:44 +01001286 char **var;
Willy Tarreau0a739292016-11-22 20:21:23 +01001287
1288 if (!cli_has_level(appctx, ACCESS_LVL_OPER))
1289 return 1;
1290
Willy Tarreauf6710f82016-12-16 17:45:44 +01001291 var = environ;
Willy Tarreau0a739292016-11-22 20:21:23 +01001292
1293 if (*args[2]) {
1294 int len = strlen(args[2]);
1295
Willy Tarreauf6710f82016-12-16 17:45:44 +01001296 for (; *var; var++) {
1297 if (strncmp(*var, args[2], len) == 0 &&
1298 (*var)[len] == '=')
Willy Tarreau0a739292016-11-22 20:21:23 +01001299 break;
1300 }
Willy Tarreauf6710f82016-12-16 17:45:44 +01001301 if (!*var) {
Andjelko Iharosc3680ec2017-07-20 16:49:14 +02001302 appctx->ctx.cli.severity = LOG_ERR;
Willy Tarreau0a739292016-11-22 20:21:23 +01001303 appctx->ctx.cli.msg = "Variable not found\n";
Willy Tarreau3b6e5472016-11-24 15:53:53 +01001304 appctx->st0 = CLI_ST_PRINT;
Willy Tarreau0a739292016-11-22 20:21:23 +01001305 return 1;
1306 }
1307 appctx->st2 = STAT_ST_END;
1308 }
Willy Tarreauf6710f82016-12-16 17:45:44 +01001309 appctx->ctx.cli.p0 = var;
Willy Tarreau0a739292016-11-22 20:21:23 +01001310 return 0;
1311}
1312
Willy Tarreau7a4a0ac2017-07-25 19:32:50 +02001313/* parse a "show fd" CLI request. Returns 0 if it needs to continue, 1 if it
1314 * wants to stop here. It puts the FD number into cli.i0 if a specific FD is
1315 * requested and sets st2 to STAT_ST_END, otherwise leaves 0 in i0.
1316 */
Aurélien Nephtaliabbf6072018-04-18 13:26:46 +02001317static int cli_parse_show_fd(char **args, char *payload, struct appctx *appctx, void *private)
Willy Tarreau7a4a0ac2017-07-25 19:32:50 +02001318{
1319 if (!cli_has_level(appctx, ACCESS_LVL_OPER))
1320 return 1;
1321
1322 appctx->ctx.cli.i0 = 0;
1323
1324 if (*args[2]) {
1325 appctx->ctx.cli.i0 = atoi(args[2]);
1326 appctx->st2 = STAT_ST_END;
1327 }
1328 return 0;
1329}
1330
Willy Tarreau599852e2016-11-22 20:33:32 +01001331/* parse a "set timeout" CLI request. It always returns 1. */
Aurélien Nephtaliabbf6072018-04-18 13:26:46 +02001332static int cli_parse_set_timeout(char **args, char *payload, struct appctx *appctx, void *private)
Willy Tarreau599852e2016-11-22 20:33:32 +01001333{
1334 struct stream_interface *si = appctx->owner;
1335 struct stream *s = si_strm(si);
1336
1337 if (strcmp(args[2], "cli") == 0) {
1338 unsigned timeout;
1339 const char *res;
1340
1341 if (!*args[3]) {
Andjelko Iharosc3680ec2017-07-20 16:49:14 +02001342 appctx->ctx.cli.severity = LOG_ERR;
Willy Tarreau599852e2016-11-22 20:33:32 +01001343 appctx->ctx.cli.msg = "Expects an integer value.\n";
Willy Tarreau3b6e5472016-11-24 15:53:53 +01001344 appctx->st0 = CLI_ST_PRINT;
Willy Tarreau599852e2016-11-22 20:33:32 +01001345 return 1;
1346 }
1347
1348 res = parse_time_err(args[3], &timeout, TIME_UNIT_S);
1349 if (res || timeout < 1) {
Andjelko Iharosc3680ec2017-07-20 16:49:14 +02001350 appctx->ctx.cli.severity = LOG_ERR;
Willy Tarreau599852e2016-11-22 20:33:32 +01001351 appctx->ctx.cli.msg = "Invalid timeout value.\n";
Willy Tarreau3b6e5472016-11-24 15:53:53 +01001352 appctx->st0 = CLI_ST_PRINT;
Willy Tarreau599852e2016-11-22 20:33:32 +01001353 return 1;
1354 }
1355
1356 s->req.rto = s->res.wto = 1 + MS_TO_TICKS(timeout*1000);
1357 task_wakeup(s->task, TASK_WOKEN_MSG); // recompute timeouts
1358 return 1;
1359 }
1360 else {
Andjelko Iharosc3680ec2017-07-20 16:49:14 +02001361 appctx->ctx.cli.severity = LOG_ERR;
Willy Tarreau599852e2016-11-22 20:33:32 +01001362 appctx->ctx.cli.msg = "'set timeout' only supports 'cli'.\n";
Willy Tarreau3b6e5472016-11-24 15:53:53 +01001363 appctx->st0 = CLI_ST_PRINT;
Willy Tarreau599852e2016-11-22 20:33:32 +01001364 return 1;
1365 }
1366}
1367
Willy Tarreau2af99412016-11-23 11:10:59 +01001368/* parse a "set maxconn global" command. It always returns 1. */
Aurélien Nephtaliabbf6072018-04-18 13:26:46 +02001369static int cli_parse_set_maxconn_global(char **args, char *payload, struct appctx *appctx, void *private)
Willy Tarreau2af99412016-11-23 11:10:59 +01001370{
1371 int v;
1372
1373 if (!cli_has_level(appctx, ACCESS_LVL_ADMIN))
1374 return 1;
1375
1376 if (!*args[3]) {
Andjelko Iharosc3680ec2017-07-20 16:49:14 +02001377 appctx->ctx.cli.severity = LOG_ERR;
Willy Tarreau2af99412016-11-23 11:10:59 +01001378 appctx->ctx.cli.msg = "Expects an integer value.\n";
Willy Tarreau3b6e5472016-11-24 15:53:53 +01001379 appctx->st0 = CLI_ST_PRINT;
Willy Tarreau2af99412016-11-23 11:10:59 +01001380 return 1;
1381 }
1382
1383 v = atoi(args[3]);
1384 if (v > global.hardmaxconn) {
Andjelko Iharosc3680ec2017-07-20 16:49:14 +02001385 appctx->ctx.cli.severity = LOG_ERR;
Willy Tarreau2af99412016-11-23 11:10:59 +01001386 appctx->ctx.cli.msg = "Value out of range.\n";
Willy Tarreau3b6e5472016-11-24 15:53:53 +01001387 appctx->st0 = CLI_ST_PRINT;
Willy Tarreau2af99412016-11-23 11:10:59 +01001388 return 1;
1389 }
1390
1391 /* check for unlimited values */
1392 if (v <= 0)
1393 v = global.hardmaxconn;
1394
1395 global.maxconn = v;
1396
1397 /* Dequeues all of the listeners waiting for a resource */
1398 if (!LIST_ISEMPTY(&global_listener_queue))
1399 dequeue_all_listeners(&global_listener_queue);
1400
1401 return 1;
1402}
1403
Andjelko Iharosc4df59e2017-07-20 11:59:48 +02001404static int set_severity_output(int *target, char *argument)
1405{
1406 if (!strcmp(argument, "none")) {
1407 *target = CLI_SEVERITY_NONE;
1408 return 1;
1409 }
1410 else if (!strcmp(argument, "number")) {
1411 *target = CLI_SEVERITY_NUMBER;
1412 return 1;
1413 }
1414 else if (!strcmp(argument, "string")) {
1415 *target = CLI_SEVERITY_STRING;
1416 return 1;
1417 }
1418 return 0;
1419}
1420
1421/* parse a "set severity-output" command. */
Aurélien Nephtaliabbf6072018-04-18 13:26:46 +02001422static int cli_parse_set_severity_output(char **args, char *payload, struct appctx *appctx, void *private)
Andjelko Iharosc4df59e2017-07-20 11:59:48 +02001423{
1424 if (*args[2] && set_severity_output(&appctx->cli_severity_output, args[2]))
1425 return 0;
1426
1427 appctx->ctx.cli.severity = LOG_ERR;
Aurélien Nephtali6e8a41d2018-03-15 21:48:50 +01001428 appctx->ctx.cli.msg = "one of 'none', 'number', 'string' is a required argument\n";
Andjelko Iharosc4df59e2017-07-20 11:59:48 +02001429 appctx->st0 = CLI_ST_PRINT;
1430 return 1;
1431}
William Lallemandeceddf72016-12-15 18:06:44 +01001432
William Lallemand67a234f2018-12-13 09:05:45 +01001433
1434/* show the level of the current CLI session */
1435static int cli_parse_show_lvl(char **args, char *payload, struct appctx *appctx, void *private)
1436{
1437
1438 appctx->ctx.cli.severity = LOG_INFO;
1439 if ((appctx->cli_level & ACCESS_LVL_MASK) == ACCESS_LVL_ADMIN)
1440 appctx->ctx.cli.msg = "admin\n";
1441 else if ((appctx->cli_level & ACCESS_LVL_MASK) == ACCESS_LVL_OPER)
1442 appctx->ctx.cli.msg = "operator\n";
1443 else if ((appctx->cli_level & ACCESS_LVL_MASK) == ACCESS_LVL_USER)
1444 appctx->ctx.cli.msg = "user\n";
1445 else
1446 appctx->ctx.cli.msg = "unknown\n";
1447
1448 appctx->st0 = CLI_ST_PRINT;
1449 return 1;
1450
1451}
1452
1453/* parse and set the CLI level dynamically */
1454static int cli_parse_set_lvl(char **args, char *payload, struct appctx *appctx, void *private)
1455{
William Lallemand1bd140e2019-07-01 10:56:15 +02001456 /* this will ask the applet to not output a \n after the command */
1457 if (!strcmp(args[1], "-"))
1458 appctx->st1 |= APPCTX_CLI_ST1_NOLF;
1459
William Lallemand67a234f2018-12-13 09:05:45 +01001460 if (!strcmp(args[0], "operator")) {
1461 if (!cli_has_level(appctx, ACCESS_LVL_OPER)) {
1462 return 1;
1463 }
1464 appctx->cli_level &= ~ACCESS_LVL_MASK;
1465 appctx->cli_level |= ACCESS_LVL_OPER;
1466
1467 } else if (!strcmp(args[0], "user")) {
1468 if (!cli_has_level(appctx, ACCESS_LVL_USER)) {
1469 return 1;
1470 }
1471 appctx->cli_level &= ~ACCESS_LVL_MASK;
1472 appctx->cli_level |= ACCESS_LVL_USER;
1473 }
1474 return 1;
1475}
1476
William Lallemanda57b7e32018-12-14 21:11:31 +01001477
Aurélien Nephtaliabbf6072018-04-18 13:26:46 +02001478int cli_parse_default(char **args, char *payload, struct appctx *appctx, void *private)
William Lallemandeceddf72016-12-15 18:06:44 +01001479{
1480 return 0;
1481}
1482
Willy Tarreau45c742b2016-11-24 14:51:17 +01001483/* parse a "set rate-limit" command. It always returns 1. */
Aurélien Nephtaliabbf6072018-04-18 13:26:46 +02001484static int cli_parse_set_ratelimit(char **args, char *payload, struct appctx *appctx, void *private)
Willy Tarreau45c742b2016-11-24 14:51:17 +01001485{
1486 int v;
1487 int *res;
1488 int mul = 1;
1489
1490 if (!cli_has_level(appctx, ACCESS_LVL_ADMIN))
1491 return 1;
1492
1493 if (strcmp(args[2], "connections") == 0 && strcmp(args[3], "global") == 0)
1494 res = &global.cps_lim;
1495 else if (strcmp(args[2], "sessions") == 0 && strcmp(args[3], "global") == 0)
1496 res = &global.sps_lim;
1497#ifdef USE_OPENSSL
1498 else if (strcmp(args[2], "ssl-sessions") == 0 && strcmp(args[3], "global") == 0)
1499 res = &global.ssl_lim;
1500#endif
1501 else if (strcmp(args[2], "http-compression") == 0 && strcmp(args[3], "global") == 0) {
1502 res = &global.comp_rate_lim;
1503 mul = 1024;
1504 }
1505 else {
Andjelko Iharosc3680ec2017-07-20 16:49:14 +02001506 appctx->ctx.cli.severity = LOG_ERR;
Willy Tarreau45c742b2016-11-24 14:51:17 +01001507 appctx->ctx.cli.msg =
1508 "'set rate-limit' only supports :\n"
1509 " - 'connections global' to set the per-process maximum connection rate\n"
1510 " - 'sessions global' to set the per-process maximum session rate\n"
1511#ifdef USE_OPENSSL
Aurélien Nephtalib53e2082018-03-11 16:55:02 +01001512 " - 'ssl-sessions global' to set the per-process maximum SSL session rate\n"
Willy Tarreau45c742b2016-11-24 14:51:17 +01001513#endif
1514 " - 'http-compression global' to set the per-process maximum compression speed in kB/s\n";
Willy Tarreau3b6e5472016-11-24 15:53:53 +01001515 appctx->st0 = CLI_ST_PRINT;
Willy Tarreau45c742b2016-11-24 14:51:17 +01001516 return 1;
1517 }
1518
1519 if (!*args[4]) {
Andjelko Iharosc3680ec2017-07-20 16:49:14 +02001520 appctx->ctx.cli.severity = LOG_ERR;
Willy Tarreau45c742b2016-11-24 14:51:17 +01001521 appctx->ctx.cli.msg = "Expects an integer value.\n";
Willy Tarreau3b6e5472016-11-24 15:53:53 +01001522 appctx->st0 = CLI_ST_PRINT;
Willy Tarreau45c742b2016-11-24 14:51:17 +01001523 return 1;
1524 }
1525
1526 v = atoi(args[4]);
1527 if (v < 0) {
Andjelko Iharosc3680ec2017-07-20 16:49:14 +02001528 appctx->ctx.cli.severity = LOG_ERR;
Willy Tarreau45c742b2016-11-24 14:51:17 +01001529 appctx->ctx.cli.msg = "Value out of range.\n";
Willy Tarreau3b6e5472016-11-24 15:53:53 +01001530 appctx->st0 = CLI_ST_PRINT;
Willy Tarreau45c742b2016-11-24 14:51:17 +01001531 return 1;
1532 }
1533
1534 *res = v * mul;
1535
1536 /* Dequeues all of the listeners waiting for a resource */
1537 if (!LIST_ISEMPTY(&global_listener_queue))
1538 dequeue_all_listeners(&global_listener_queue);
1539
1540 return 1;
1541}
1542
William Lallemandf6975e92017-05-26 17:42:10 +02001543/* parse the "expose-fd" argument on the bind lines */
1544static int bind_parse_expose_fd(char **args, int cur_arg, struct proxy *px, struct bind_conf *conf, char **err)
1545{
1546 if (!*args[cur_arg + 1]) {
1547 memprintf(err, "'%s' : missing fd type", args[cur_arg]);
1548 return ERR_ALERT | ERR_FATAL;
1549 }
1550 if (!strcmp(args[cur_arg+1], "listeners")) {
1551 conf->level |= ACCESS_FD_LISTENERS;
1552 } else {
1553 memprintf(err, "'%s' only supports 'listeners' (got '%s')",
1554 args[cur_arg], args[cur_arg+1]);
1555 return ERR_ALERT | ERR_FATAL;
1556 }
1557
1558 return 0;
1559}
1560
William Lallemand74c24fb2016-11-21 17:18:36 +01001561/* parse the "level" argument on the bind lines */
1562static int bind_parse_level(char **args, int cur_arg, struct proxy *px, struct bind_conf *conf, char **err)
1563{
1564 if (!*args[cur_arg + 1]) {
1565 memprintf(err, "'%s' : missing level", args[cur_arg]);
1566 return ERR_ALERT | ERR_FATAL;
1567 }
1568
William Lallemand07a62f72017-05-24 00:57:40 +02001569 if (!strcmp(args[cur_arg+1], "user")) {
1570 conf->level &= ~ACCESS_LVL_MASK;
1571 conf->level |= ACCESS_LVL_USER;
1572 } else if (!strcmp(args[cur_arg+1], "operator")) {
1573 conf->level &= ~ACCESS_LVL_MASK;
1574 conf->level |= ACCESS_LVL_OPER;
1575 } else if (!strcmp(args[cur_arg+1], "admin")) {
1576 conf->level &= ~ACCESS_LVL_MASK;
1577 conf->level |= ACCESS_LVL_ADMIN;
1578 } else {
William Lallemand74c24fb2016-11-21 17:18:36 +01001579 memprintf(err, "'%s' only supports 'user', 'operator', and 'admin' (got '%s')",
1580 args[cur_arg], args[cur_arg+1]);
1581 return ERR_ALERT | ERR_FATAL;
1582 }
1583
1584 return 0;
1585}
1586
Andjelko Iharosc4df59e2017-07-20 11:59:48 +02001587static int bind_parse_severity_output(char **args, int cur_arg, struct proxy *px, struct bind_conf *conf, char **err)
1588{
1589 if (!*args[cur_arg + 1]) {
1590 memprintf(err, "'%s' : missing severity format", args[cur_arg]);
1591 return ERR_ALERT | ERR_FATAL;
1592 }
1593
1594 if (set_severity_output(&conf->severity_output, args[cur_arg+1]))
1595 return 0;
1596 else {
1597 memprintf(err, "'%s' only supports 'none', 'number', and 'string' (got '%s')",
1598 args[cur_arg], args[cur_arg+1]);
1599 return ERR_ALERT | ERR_FATAL;
1600 }
1601}
1602
William Lallemand16dd1b32018-11-19 18:46:18 +01001603
William Lallemandb9f9e3b2018-10-26 14:47:39 +02001604
Olivier Houchardf886e342017-04-05 22:24:59 +02001605/* Send all the bound sockets, always returns 1 */
Aurélien Nephtaliabbf6072018-04-18 13:26:46 +02001606static int _getsocks(char **args, char *payload, struct appctx *appctx, void *private)
Olivier Houchardf886e342017-04-05 22:24:59 +02001607{
1608 char *cmsgbuf = NULL;
1609 unsigned char *tmpbuf = NULL;
1610 struct cmsghdr *cmsg;
1611 struct stream_interface *si = appctx->owner;
William Lallemandf6975e92017-05-26 17:42:10 +02001612 struct stream *s = si_strm(si);
Olivier Houchard9aaf7782017-09-13 18:30:23 +02001613 struct connection *remote = cs_conn(objt_cs(si_opposite(si)->end));
Olivier Houchardf886e342017-04-05 22:24:59 +02001614 struct msghdr msghdr;
1615 struct iovec iov;
Olivier Houchard54740872017-04-06 14:45:14 +02001616 struct timeval tv = { .tv_sec = 1, .tv_usec = 0 };
Olivier Houchardf886e342017-04-05 22:24:59 +02001617 int *tmpfd;
1618 int tot_fd_nb = 0;
1619 struct proxy *px;
1620 int i = 0;
Willy Tarreauc2b7f802018-09-20 11:22:29 +02001621 int fd = -1;
Olivier Houchardf886e342017-04-05 22:24:59 +02001622 int curoff = 0;
Willy Tarreauc2b7f802018-09-20 11:22:29 +02001623 int old_fcntl = -1;
Olivier Houchardf886e342017-04-05 22:24:59 +02001624 int ret;
1625
Willy Tarreauc2b7f802018-09-20 11:22:29 +02001626 if (!remote) {
1627 ha_warning("Only works on real connections\n");
1628 goto out;
1629 }
1630
1631 fd = remote->handle.fd;
1632
Olivier Houchardf886e342017-04-05 22:24:59 +02001633 /* Temporary set the FD in blocking mode, that will make our life easier */
1634 old_fcntl = fcntl(fd, F_GETFL);
1635 if (old_fcntl < 0) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001636 ha_warning("Couldn't get the flags for the unix socket\n");
Olivier Houchardf886e342017-04-05 22:24:59 +02001637 goto out;
1638 }
1639 cmsgbuf = malloc(CMSG_SPACE(sizeof(int) * MAX_SEND_FD));
1640 if (!cmsgbuf) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001641 ha_warning("Failed to allocate memory to send sockets\n");
Olivier Houchardf886e342017-04-05 22:24:59 +02001642 goto out;
1643 }
1644 if (fcntl(fd, F_SETFL, old_fcntl &~ O_NONBLOCK) == -1) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001645 ha_warning("Cannot make the unix socket blocking\n");
Olivier Houchardf886e342017-04-05 22:24:59 +02001646 goto out;
1647 }
Olivier Houchard54740872017-04-06 14:45:14 +02001648 setsockopt(fd, SOL_SOCKET, SO_RCVTIMEO, (void *)&tv, sizeof(tv));
Olivier Houchardf886e342017-04-05 22:24:59 +02001649 iov.iov_base = &tot_fd_nb;
1650 iov.iov_len = sizeof(tot_fd_nb);
William Lallemandf6975e92017-05-26 17:42:10 +02001651 if (!(strm_li(s)->bind_conf->level & ACCESS_FD_LISTENERS))
Olivier Houchardf886e342017-04-05 22:24:59 +02001652 goto out;
1653 memset(&msghdr, 0, sizeof(msghdr));
1654 /*
1655 * First, calculates the total number of FD, so that we can let
1656 * the caller know how much he should expects.
1657 */
Olivier Houchardfbc74e82017-11-24 16:54:05 +01001658 px = proxies_list;
Olivier Houchardf886e342017-04-05 22:24:59 +02001659 while (px) {
1660 struct listener *l;
1661
1662 list_for_each_entry(l, &px->conf.listeners, by_fe) {
Olivier Houchard1fc05162017-04-06 01:05:05 +02001663 /* Only transfer IPv4/IPv6/UNIX sockets */
1664 if (l->state >= LI_ZOMBIE &&
1665 (l->proto->sock_family == AF_INET ||
Olivier Houchardf886e342017-04-05 22:24:59 +02001666 l->proto->sock_family == AF_INET6 ||
Olivier Houchard1fc05162017-04-06 01:05:05 +02001667 l->proto->sock_family == AF_UNIX))
Olivier Houchardf886e342017-04-05 22:24:59 +02001668 tot_fd_nb++;
1669 }
1670 px = px->next;
1671 }
1672 if (tot_fd_nb == 0)
1673 goto out;
1674
1675 /* First send the total number of file descriptors, so that the
1676 * receiving end knows what to expect.
1677 */
1678 msghdr.msg_iov = &iov;
1679 msghdr.msg_iovlen = 1;
1680 ret = sendmsg(fd, &msghdr, 0);
1681 if (ret != sizeof(tot_fd_nb)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001682 ha_warning("Failed to send the number of sockets to send\n");
Olivier Houchardf886e342017-04-05 22:24:59 +02001683 goto out;
1684 }
1685
1686 /* Now send the fds */
1687 msghdr.msg_control = cmsgbuf;
1688 msghdr.msg_controllen = CMSG_SPACE(sizeof(int) * MAX_SEND_FD);
1689 cmsg = CMSG_FIRSTHDR(&msghdr);
1690 cmsg->cmsg_len = CMSG_LEN(MAX_SEND_FD * sizeof(int));
1691 cmsg->cmsg_level = SOL_SOCKET;
1692 cmsg->cmsg_type = SCM_RIGHTS;
1693 tmpfd = (int *)CMSG_DATA(cmsg);
1694
Olivier Houchardfbc74e82017-11-24 16:54:05 +01001695 px = proxies_list;
Olivier Houchardf886e342017-04-05 22:24:59 +02001696 /* For each socket, e message is sent, containing the following :
1697 * Size of the namespace name (or 0 if none), as an unsigned char.
1698 * The namespace name, if any
1699 * Size of the interface name (or 0 if none), as an unsigned char
1700 * The interface name, if any
1701 * Listener options, as an int.
1702 */
1703 /* We will send sockets MAX_SEND_FD per MAX_SEND_FD, allocate a
1704 * buffer big enough to store the socket informations.
1705 */
Olivier Houchardf143b802017-11-04 15:13:01 +01001706 tmpbuf = malloc(MAX_SEND_FD * (1 + MAXPATHLEN + 1 + IFNAMSIZ + sizeof(int)));
Olivier Houchardf886e342017-04-05 22:24:59 +02001707 if (tmpbuf == NULL) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001708 ha_warning("Failed to allocate memory to transfer socket informations\n");
Olivier Houchardf886e342017-04-05 22:24:59 +02001709 goto out;
1710 }
1711 iov.iov_base = tmpbuf;
1712 while (px) {
1713 struct listener *l;
1714
1715 list_for_each_entry(l, &px->conf.listeners, by_fe) {
1716 int ret;
1717 /* Only transfer IPv4/IPv6 sockets */
Olivier Houchard1fc05162017-04-06 01:05:05 +02001718 if (l->state >= LI_ZOMBIE &&
Olivier Houchardf886e342017-04-05 22:24:59 +02001719 (l->proto->sock_family == AF_INET ||
1720 l->proto->sock_family == AF_INET6 ||
1721 l->proto->sock_family == AF_UNIX)) {
1722 memcpy(&tmpfd[i % MAX_SEND_FD], &l->fd, sizeof(l->fd));
1723 if (!l->netns)
1724 tmpbuf[curoff++] = 0;
Willy Tarreaue5733232019-05-22 19:24:06 +02001725#ifdef USE_NS
Olivier Houchardf886e342017-04-05 22:24:59 +02001726 else {
1727 char *name = l->netns->node.key;
1728 unsigned char len = l->netns->name_len;
1729 tmpbuf[curoff++] = len;
1730 memcpy(tmpbuf + curoff, name, len);
1731 curoff += len;
1732 }
1733#endif
1734 if (l->interface) {
1735 unsigned char len = strlen(l->interface);
1736 tmpbuf[curoff++] = len;
1737 memcpy(tmpbuf + curoff, l->interface, len);
1738 curoff += len;
1739 } else
1740 tmpbuf[curoff++] = 0;
1741 memcpy(tmpbuf + curoff, &l->options,
1742 sizeof(l->options));
1743 curoff += sizeof(l->options);
1744
1745
1746 i++;
1747 } else
1748 continue;
1749 if ((!(i % MAX_SEND_FD))) {
1750 iov.iov_len = curoff;
1751 if (sendmsg(fd, &msghdr, 0) != curoff) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001752 ha_warning("Failed to transfer sockets\n");
Olivier Houchardf886e342017-04-05 22:24:59 +02001753 goto out;
1754 }
1755 /* Wait for an ack */
1756 do {
1757 ret = recv(fd, &tot_fd_nb,
1758 sizeof(tot_fd_nb), 0);
1759 } while (ret == -1 && errno == EINTR);
1760 if (ret <= 0) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001761 ha_warning("Unexpected error while transferring sockets\n");
Olivier Houchardf886e342017-04-05 22:24:59 +02001762 goto out;
1763 }
1764 curoff = 0;
1765 }
1766
1767 }
1768 px = px->next;
1769 }
1770 if (i % MAX_SEND_FD) {
1771 iov.iov_len = curoff;
1772 cmsg->cmsg_len = CMSG_LEN((i % MAX_SEND_FD) * sizeof(int));
1773 msghdr.msg_controllen = CMSG_SPACE(sizeof(int) * (i % MAX_SEND_FD));
1774 if (sendmsg(fd, &msghdr, 0) != curoff) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001775 ha_warning("Failed to transfer sockets\n");
Olivier Houchardf886e342017-04-05 22:24:59 +02001776 goto out;
1777 }
1778 }
1779
1780out:
Willy Tarreauc2b7f802018-09-20 11:22:29 +02001781 if (fd >= 0 && old_fcntl >= 0 && fcntl(fd, F_SETFL, old_fcntl) == -1) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001782 ha_warning("Cannot make the unix socket non-blocking\n");
Olivier Houchardf886e342017-04-05 22:24:59 +02001783 goto out;
1784 }
1785 appctx->st0 = CLI_ST_END;
1786 free(cmsgbuf);
1787 free(tmpbuf);
1788 return 1;
1789}
1790
Aurélien Nephtaliabbf6072018-04-18 13:26:46 +02001791static int cli_parse_simple(char **args, char *payload, struct appctx *appctx, void *private)
1792{
1793 if (*args[0] == 'h')
1794 /* help */
1795 cli_gen_usage_msg(appctx);
1796 else if (*args[0] == 'p')
1797 /* prompt */
1798 appctx->st1 ^= APPCTX_CLI_ST1_PROMPT;
1799 else if (*args[0] == 'q')
1800 /* quit */
1801 appctx->st0 = CLI_ST_END;
1802
1803 return 1;
1804}
Olivier Houchardf886e342017-04-05 22:24:59 +02001805
William Lallemand2f4ce202018-10-26 14:47:47 +02001806void pcli_write_prompt(struct stream *s)
1807{
1808 struct buffer *msg = get_trash_chunk();
1809 struct channel *oc = si_oc(&s->si[0]);
1810
William Lallemanddc12c2e2018-12-13 09:05:46 +01001811 if (!(s->pcli_flags & PCLI_F_PROMPT))
William Lallemand5b80fa22018-12-11 16:10:54 +01001812 return;
1813
William Lallemanddc12c2e2018-12-13 09:05:46 +01001814 if (s->pcli_flags & PCLI_F_PAYLOAD) {
William Lallemandebf61802018-12-11 16:10:57 +01001815 chunk_appendf(msg, "+ ");
1816 } else {
1817 if (s->pcli_next_pid == 0)
Willy Tarreau52880f92018-12-15 13:30:03 +01001818 chunk_appendf(msg, "master%s> ",
1819 (global.mode & MODE_MWORKER_WAIT) ? "[ReloadFailed]" : "");
William Lallemandebf61802018-12-11 16:10:57 +01001820 else
1821 chunk_appendf(msg, "%d> ", s->pcli_next_pid);
1822 }
William Lallemand2f4ce202018-10-26 14:47:47 +02001823 co_inject(oc, msg->area, msg->data);
1824}
1825
William Lallemand291810d2018-10-26 14:47:38 +02001826
William Lallemandcf62f7e2018-10-26 14:47:40 +02001827/* The pcli_* functions are used for the CLI proxy in the master */
1828
William Lallemanddeeaa592018-10-26 14:47:48 +02001829void pcli_reply_and_close(struct stream *s, const char *msg)
1830{
1831 struct buffer *buf = get_trash_chunk();
1832
1833 chunk_initstr(buf, msg);
Willy Tarreau14bfe9a2018-12-19 15:19:27 +01001834 si_retnclose(&s->si[0], buf);
William Lallemanddeeaa592018-10-26 14:47:48 +02001835}
1836
William Lallemand291810d2018-10-26 14:47:38 +02001837static enum obj_type *pcli_pid_to_server(int proc_pid)
1838{
1839 struct mworker_proc *child;
1840
William Lallemandbddd33a2018-12-11 16:10:53 +01001841 /* return the CLI applet of the master */
1842 if (proc_pid == 0)
1843 return &cli_applet.obj_type;
1844
William Lallemand291810d2018-10-26 14:47:38 +02001845 list_for_each_entry(child, &proc_list, list) {
1846 if (child->pid == proc_pid){
1847 return &child->srv->obj_type;
1848 }
1849 }
1850 return NULL;
1851}
1852
1853/* Take a CLI prefix in argument (eg: @!1234 @master @1)
1854 * Return:
1855 * 0: master
1856 * > 0: pid of a worker
1857 * < 0: didn't find a worker
1858 */
1859static int pcli_prefix_to_pid(const char *prefix)
1860{
1861 int proc_pid;
1862 struct mworker_proc *child;
1863 char *errtol = NULL;
1864
1865 if (*prefix != '@') /* not a prefix, should not happen */
1866 return -1;
1867
1868 prefix++;
1869 if (!*prefix) /* sent @ alone, return the master */
1870 return 0;
1871
1872 if (strcmp("master", prefix) == 0) {
1873 return 0;
1874 } else if (*prefix == '!') {
1875 prefix++;
1876 if (!*prefix)
1877 return -1;
1878
1879 proc_pid = strtol(prefix, &errtol, 10);
1880 if (*errtol != '\0')
1881 return -1;
1882 list_for_each_entry(child, &proc_list, list) {
William Lallemand8f7069a2019-04-12 16:09:23 +02001883 if (!(child->options & PROC_O_TYPE_WORKER))
William Lallemand16dd1b32018-11-19 18:46:18 +01001884 continue;
William Lallemand291810d2018-10-26 14:47:38 +02001885 if (child->pid == proc_pid){
1886 return child->pid;
1887 }
1888 }
1889 } else {
1890 struct mworker_proc *chosen = NULL;
1891 /* this is a relative pid */
1892
1893 proc_pid = strtol(prefix, &errtol, 10);
1894 if (*errtol != '\0')
1895 return -1;
1896
1897 if (proc_pid == 0) /* return the master */
1898 return 0;
1899
1900 /* chose the right process, the current one is the one with the
1901 least number of reloads */
1902 list_for_each_entry(child, &proc_list, list) {
William Lallemand8f7069a2019-04-12 16:09:23 +02001903 if (!(child->options & PROC_O_TYPE_WORKER))
William Lallemand16dd1b32018-11-19 18:46:18 +01001904 continue;
William Lallemand291810d2018-10-26 14:47:38 +02001905 if (child->relative_pid == proc_pid){
1906 if (child->reloads == 0)
1907 return child->pid;
1908 else if (chosen == NULL || child->reloads < chosen->reloads)
1909 chosen = child;
1910 }
1911 }
1912 if (chosen)
1913 return chosen->pid;
1914 }
1915 return -1;
1916}
1917
William Lallemandbddd33a2018-12-11 16:10:53 +01001918/* Return::
1919 * >= 0 : number of words to escape
1920 * = -1 : error
1921 */
1922
1923int pcli_find_and_exec_kw(struct stream *s, char **args, int argl, char **errmsg, int *next_pid)
1924{
1925 if (argl < 1)
1926 return 0;
1927
1928 /* there is a prefix */
1929 if (args[0][0] == '@') {
1930 int target_pid = pcli_prefix_to_pid(args[0]);
1931
1932 if (target_pid == -1) {
1933 memprintf(errmsg, "Can't find the target PID matching the prefix '%s'\n", args[0]);
1934 return -1;
1935 }
1936
1937 /* if the prefix is alone, define a default target */
1938 if (argl == 1)
1939 s->pcli_next_pid = target_pid;
1940 else
1941 *next_pid = target_pid;
1942 return 1;
William Lallemand5b80fa22018-12-11 16:10:54 +01001943 } else if (!strcmp("prompt", args[0])) {
William Lallemanddc12c2e2018-12-13 09:05:46 +01001944 s->pcli_flags ^= PCLI_F_PROMPT;
William Lallemand5b80fa22018-12-11 16:10:54 +01001945 return argl; /* return the number of elements in the array */
William Lallemand5f610682018-12-11 16:10:55 +01001946
1947 } else if (!strcmp("quit", args[0])) {
1948 channel_shutr_now(&s->req);
1949 channel_shutw_now(&s->res);
1950 return argl; /* return the number of elements in the array */
William Lallemandb7ea1412018-12-13 09:05:47 +01001951 } else if (!strcmp(args[0], "operator")) {
1952 if (!pcli_has_level(s, ACCESS_LVL_OPER)) {
1953 memprintf(errmsg, "Permission denied!\n");
1954 return -1;
1955 }
1956 s->pcli_flags &= ~ACCESS_LVL_MASK;
1957 s->pcli_flags |= ACCESS_LVL_OPER;
1958 return argl;
1959
1960 } else if (!strcmp(args[0], "user")) {
1961 if (!pcli_has_level(s, ACCESS_LVL_USER)) {
1962 memprintf(errmsg, "Permission denied!\n");
1963 return -1;
1964 }
1965 s->pcli_flags &= ~ACCESS_LVL_MASK;
1966 s->pcli_flags |= ACCESS_LVL_USER;
1967 return argl;
William Lallemandbddd33a2018-12-11 16:10:53 +01001968 }
1969
1970 return 0;
1971}
1972
1973/*
1974 * Parse the CLI request:
1975 * - It does basically the same as the cli_io_handler, but as a proxy
1976 * - It can exec a command and strip non forwardable commands
William Lallemandcf62f7e2018-10-26 14:47:40 +02001977 *
1978 * Return:
William Lallemandbddd33a2018-12-11 16:10:53 +01001979 * - the number of characters to forward or
1980 * - 1 if there is an error or not enough data
William Lallemandcf62f7e2018-10-26 14:47:40 +02001981 */
William Lallemandbddd33a2018-12-11 16:10:53 +01001982int pcli_parse_request(struct stream *s, struct channel *req, char **errmsg, int *next_pid)
William Lallemandcf62f7e2018-10-26 14:47:40 +02001983{
William Lallemandbddd33a2018-12-11 16:10:53 +01001984 char *str = (char *)ci_head(req);
1985 char *end = (char *)ci_stop(req);
1986 char *args[MAX_STATS_ARGS + 1]; /* +1 for storing a NULL */
1987 int argl; /* number of args */
1988 char *p;
1989 char *trim = NULL;
William Lallemandebf61802018-12-11 16:10:57 +01001990 char *payload = NULL;
William Lallemandbddd33a2018-12-11 16:10:53 +01001991 int wtrim = 0; /* number of words to trim */
1992 int reql = 0;
William Lallemandb7ea1412018-12-13 09:05:47 +01001993 int ret;
William Lallemandbddd33a2018-12-11 16:10:53 +01001994 int i = 0;
1995
1996 p = str;
William Lallemandcf62f7e2018-10-26 14:47:40 +02001997
William Lallemanddc12c2e2018-12-13 09:05:46 +01001998 if (!(s->pcli_flags & PCLI_F_PAYLOAD)) {
William Lallemandebf61802018-12-11 16:10:57 +01001999
2000 /* Looks for the end of one command */
2001 while (p+reql < end) {
2002 /* handle escaping */
2003 if (p[reql] == '\\') {
2004 reql++;
2005 continue;
2006 }
2007 if (p[reql] == ';' || p[reql] == '\n') {
2008 /* found the end of the command */
2009 p[reql] = '\n';
2010 reql++;
2011 break;
2012 }
William Lallemandbddd33a2018-12-11 16:10:53 +01002013 reql++;
William Lallemandbddd33a2018-12-11 16:10:53 +01002014 }
William Lallemandebf61802018-12-11 16:10:57 +01002015 } else {
2016 while (p+reql < end) {
2017 if (p[reql] == '\n') {
2018 /* found the end of the line */
2019 reql++;
2020 break;
2021 }
William Lallemandbddd33a2018-12-11 16:10:53 +01002022 reql++;
William Lallemandbddd33a2018-12-11 16:10:53 +01002023 }
William Lallemandbddd33a2018-12-11 16:10:53 +01002024 }
William Lallemandcf62f7e2018-10-26 14:47:40 +02002025
William Lallemandbddd33a2018-12-11 16:10:53 +01002026 /* set end to first byte after the end of the command */
2027 end = p + reql;
William Lallemandcf62f7e2018-10-26 14:47:40 +02002028
William Lallemandbddd33a2018-12-11 16:10:53 +01002029 /* there is no end to this command, need more to parse ! */
2030 if (*(end-1) != '\n') {
2031 return -1;
2032 }
William Lallemandcf62f7e2018-10-26 14:47:40 +02002033
William Lallemand3301f3e2018-12-13 09:05:48 +01002034 if (s->pcli_flags & PCLI_F_PAYLOAD) {
2035 if (reql == 1) /* last line of the payload */
2036 s->pcli_flags &= ~PCLI_F_PAYLOAD;
William Lallemandebf61802018-12-11 16:10:57 +01002037 return reql;
2038 }
2039
William Lallemandbddd33a2018-12-11 16:10:53 +01002040 *(end-1) = '\0';
William Lallemandcf62f7e2018-10-26 14:47:40 +02002041
William Lallemandbddd33a2018-12-11 16:10:53 +01002042 /* splits the command in words */
2043 while (i < MAX_STATS_ARGS && p < end) {
2044 int j, k;
William Lallemandcf62f7e2018-10-26 14:47:40 +02002045
William Lallemandbddd33a2018-12-11 16:10:53 +01002046 /* skip leading spaces/tabs */
2047 p += strspn(p, " \t");
2048 if (!*p)
William Lallemandcf62f7e2018-10-26 14:47:40 +02002049 break;
2050
William Lallemandbddd33a2018-12-11 16:10:53 +01002051 args[i] = p;
2052 p += strcspn(p, " \t");
2053 *p++ = 0;
William Lallemandcf62f7e2018-10-26 14:47:40 +02002054
William Lallemandbddd33a2018-12-11 16:10:53 +01002055 /* unescape backslashes (\) */
2056 for (j = 0, k = 0; args[i][k]; k++) {
2057 if (args[i][k] == '\\') {
2058 if (args[i][k + 1] == '\\')
2059 k++;
2060 else
2061 continue;
2062 }
2063 args[i][j] = args[i][k];
2064 j++;
William Lallemandcf62f7e2018-10-26 14:47:40 +02002065 }
William Lallemandbddd33a2018-12-11 16:10:53 +01002066 args[i][j] = 0;
2067 i++;
William Lallemandcf62f7e2018-10-26 14:47:40 +02002068 }
2069
William Lallemandbddd33a2018-12-11 16:10:53 +01002070 argl = i;
William Lallemandcf62f7e2018-10-26 14:47:40 +02002071
William Lallemandbddd33a2018-12-11 16:10:53 +01002072 for (; i < MAX_STATS_ARGS + 1; i++)
2073 args[i] = NULL;
2074
2075 wtrim = pcli_find_and_exec_kw(s, args, argl, errmsg, next_pid);
2076
2077 /* End of words are ending by \0, we need to replace the \0s by spaces
20781 before forwarding them */
2079 p = str;
William Lallemand3301f3e2018-12-13 09:05:48 +01002080 while (p < end-1) {
William Lallemandbddd33a2018-12-11 16:10:53 +01002081 if (*p == '\0')
2082 *p = ' ';
2083 p++;
William Lallemandcf62f7e2018-10-26 14:47:40 +02002084 }
2085
William Lallemand3301f3e2018-12-13 09:05:48 +01002086 payload = strstr(str, PAYLOAD_PATTERN);
2087 if ((end - 1) == (payload + strlen(PAYLOAD_PATTERN))) {
2088 /* if the payload pattern is at the end */
2089 s->pcli_flags |= PCLI_F_PAYLOAD;
2090 ret = reql;
2091 }
2092
William Lallemandbddd33a2018-12-11 16:10:53 +01002093 *(end-1) = '\n';
William Lallemandcf62f7e2018-10-26 14:47:40 +02002094
William Lallemandbddd33a2018-12-11 16:10:53 +01002095 if (wtrim > 0) {
2096 trim = &args[wtrim][0];
2097 if (trim == NULL) /* if this was the last word in the table */
2098 trim = end;
William Lallemandcf62f7e2018-10-26 14:47:40 +02002099
William Lallemandbddd33a2018-12-11 16:10:53 +01002100 b_del(&req->buf, trim - str);
2101
William Lallemandb7ea1412018-12-13 09:05:47 +01002102 ret = end - trim;
William Lallemandbddd33a2018-12-11 16:10:53 +01002103 } else if (wtrim < 0) {
2104 /* parsing error */
2105 return -1;
William Lallemandb7ea1412018-12-13 09:05:47 +01002106 } else {
2107 /* the whole string */
2108 ret = end - str;
William Lallemandbddd33a2018-12-11 16:10:53 +01002109 }
2110
William Lallemandb7ea1412018-12-13 09:05:47 +01002111 if (ret > 1) {
2112 if (pcli_has_level(s, ACCESS_LVL_ADMIN)) {
2113 goto end;
2114 } else if (pcli_has_level(s, ACCESS_LVL_OPER)) {
William Lallemand1bd140e2019-07-01 10:56:15 +02002115 ci_insert_line2(req, 0, "operator -", strlen("operator -"));
2116 ret += strlen("operator -") + 2;
William Lallemandb7ea1412018-12-13 09:05:47 +01002117 } else if (pcli_has_level(s, ACCESS_LVL_USER)) {
William Lallemand1bd140e2019-07-01 10:56:15 +02002118 ci_insert_line2(req, 0, "user -", strlen("user -"));
2119 ret += strlen("user -") + 2;
William Lallemandb7ea1412018-12-13 09:05:47 +01002120 }
2121 }
2122end:
William Lallemandbddd33a2018-12-11 16:10:53 +01002123
William Lallemandb7ea1412018-12-13 09:05:47 +01002124 return ret;
William Lallemandcf62f7e2018-10-26 14:47:40 +02002125}
2126
2127int pcli_wait_for_request(struct stream *s, struct channel *req, int an_bit)
2128{
William Lallemandbddd33a2018-12-11 16:10:53 +01002129 int next_pid = -1;
William Lallemandcf62f7e2018-10-26 14:47:40 +02002130 int to_forward;
William Lallemandbddd33a2018-12-11 16:10:53 +01002131 char *errmsg = NULL;
William Lallemandcf62f7e2018-10-26 14:47:40 +02002132
William Lallemandb7ea1412018-12-13 09:05:47 +01002133 if ((s->pcli_flags & ACCESS_LVL_MASK) == ACCESS_LVL_NONE)
2134 s->pcli_flags |= strm_li(s)->bind_conf->level & ACCESS_LVL_MASK;
2135
William Lallemandcf62f7e2018-10-26 14:47:40 +02002136read_again:
2137 /* if the channel is closed for read, we won't receive any more data
2138 from the client, but we don't want to forward this close to the
2139 server */
2140 channel_dont_close(req);
2141
2142 /* We don't know yet to which server we will connect */
2143 channel_dont_connect(req);
2144
2145
2146 /* we are not waiting for a response, there is no more request and we
2147 * receive a close from the client, we can leave */
2148 if (!(ci_data(req)) && req->flags & CF_SHUTR) {
2149 channel_shutw_now(&s->res);
2150 s->req.analysers &= ~AN_REQ_WAIT_CLI;
2151 return 1;
2152 }
2153
2154 req->flags |= CF_READ_DONTWAIT;
2155
2156 /* need more data */
2157 if (!ci_data(req))
2158 return 0;
2159
2160 /* If there is data available for analysis, log the end of the idle time. */
2161 if (c_data(req) && s->logs.t_idle == -1)
2162 s->logs.t_idle = tv_ms_elapsed(&s->logs.tv_accept, &now) - s->logs.t_handshake;
2163
William Lallemandbddd33a2018-12-11 16:10:53 +01002164 to_forward = pcli_parse_request(s, req, &errmsg, &next_pid);
William Lallemandcf62f7e2018-10-26 14:47:40 +02002165 if (to_forward > 0) {
William Lallemandbddd33a2018-12-11 16:10:53 +01002166 int target_pid;
William Lallemandcf62f7e2018-10-26 14:47:40 +02002167 /* enough data */
2168
William Lallemandcf62f7e2018-10-26 14:47:40 +02002169 /* forward only 1 command */
2170 channel_forward(req, to_forward);
William Lallemandebf61802018-12-11 16:10:57 +01002171
William Lallemanddc12c2e2018-12-13 09:05:46 +01002172 if (!(s->pcli_flags & PCLI_F_PAYLOAD)) {
William Lallemandebf61802018-12-11 16:10:57 +01002173 /* we send only 1 command per request, and we write close after it */
2174 channel_shutw_now(req);
2175 } else {
2176 pcli_write_prompt(s);
2177 }
2178
2179 s->res.flags |= CF_WAKE_ONCE; /* need to be called again */
William Lallemandcf62f7e2018-10-26 14:47:40 +02002180
2181 /* remove the XFER_DATA analysers, which forwards all
2182 * the data, we don't want to forward the next requests
2183 * We need to add CF_FLT_ANALYZE to abort the forward too.
2184 */
2185 req->analysers &= ~(AN_REQ_FLT_XFER_DATA|AN_REQ_WAIT_CLI);
2186 req->analysers |= AN_REQ_FLT_END|CF_FLT_ANALYZE;
2187 s->res.analysers |= AN_RES_WAIT_CLI;
2188
William Lallemandebf61802018-12-11 16:10:57 +01002189 if (!(s->flags & SF_ASSIGNED)) {
2190 if (next_pid > -1)
2191 target_pid = next_pid;
2192 else
2193 target_pid = s->pcli_next_pid;
2194 /* we can connect now */
2195 s->target = pcli_pid_to_server(target_pid);
William Lallemandcf62f7e2018-10-26 14:47:40 +02002196
William Lallemandebf61802018-12-11 16:10:57 +01002197 s->flags |= (SF_DIRECT | SF_ASSIGNED);
2198 channel_auto_connect(req);
2199 }
William Lallemandcf62f7e2018-10-26 14:47:40 +02002200
2201 } else if (to_forward == 0) {
William Lallemandcf62f7e2018-10-26 14:47:40 +02002202 /* we trimmed things but we might have other commands to consume */
William Lallemandbddd33a2018-12-11 16:10:53 +01002203 pcli_write_prompt(s);
William Lallemandcf62f7e2018-10-26 14:47:40 +02002204 goto read_again;
William Lallemandbddd33a2018-12-11 16:10:53 +01002205 } else if (to_forward == -1 && errmsg) {
2206 /* there was an error during the parsing */
2207 pcli_reply_and_close(s, errmsg);
2208 return 0;
William Lallemandcf62f7e2018-10-26 14:47:40 +02002209 } else if (to_forward == -1 && channel_full(req, global.tune.maxrewrite)) {
2210 /* buffer is full and we didn't catch the end of a command */
2211 goto send_help;
2212 }
2213
2214 return 0;
2215
2216send_help:
2217 b_reset(&req->buf);
2218 b_putblk(&req->buf, "help\n", 5);
2219 goto read_again;
2220}
2221
2222int pcli_wait_for_response(struct stream *s, struct channel *rep, int an_bit)
2223{
2224 struct proxy *fe = strm_fe(s);
2225 struct proxy *be = s->be;
2226
William Lallemand6b7cd0a2018-11-06 17:37:11 +01002227 if (rep->flags & CF_READ_ERROR) {
2228 pcli_reply_and_close(s, "Can't connect to the target CLI!\n");
2229 s->res.analysers &= ~AN_RES_WAIT_CLI;
2230 return 0;
2231 }
William Lallemandcf62f7e2018-10-26 14:47:40 +02002232 rep->flags |= CF_READ_DONTWAIT; /* try to get back here ASAP */
2233 rep->flags |= CF_NEVER_WAIT;
2234
2235 /* don't forward the close */
2236 channel_dont_close(&s->res);
2237 channel_dont_close(&s->req);
2238
William Lallemanddc12c2e2018-12-13 09:05:46 +01002239 if (s->pcli_flags & PCLI_F_PAYLOAD) {
William Lallemandebf61802018-12-11 16:10:57 +01002240 s->req.analysers |= AN_REQ_WAIT_CLI;
2241 s->res.analysers &= ~AN_RES_WAIT_CLI;
2242 s->req.flags |= CF_WAKE_ONCE; /* need to be called again if there is some command left in the request */
2243 return 0;
2244 }
2245
William Lallemandcf62f7e2018-10-26 14:47:40 +02002246 /* forward the data */
2247 if (ci_data(rep)) {
2248 c_adv(rep, ci_data(rep));
2249 return 0;
2250 }
2251
2252 if ((rep->flags & (CF_SHUTR|CF_READ_NULL))) {
2253 /* stream cleanup */
2254
William Lallemand2f4ce202018-10-26 14:47:47 +02002255 pcli_write_prompt(s);
2256
William Lallemandcf62f7e2018-10-26 14:47:40 +02002257 s->si[1].flags |= SI_FL_NOLINGER | SI_FL_NOHALF;
2258 si_shutr(&s->si[1]);
2259 si_shutw(&s->si[1]);
2260
2261 /*
2262 * starting from there this the same code as
2263 * http_end_txn_clean_session().
2264 *
2265 * It allows to do frontend keepalive while reconnecting to a
2266 * new server for each request.
2267 */
2268
2269 if (s->flags & SF_BE_ASSIGNED) {
2270 HA_ATOMIC_SUB(&be->beconn, 1);
2271 if (unlikely(s->srv_conn))
2272 sess_change_server(s, NULL);
2273 }
2274
2275 s->logs.t_close = tv_ms_elapsed(&s->logs.tv_accept, &now);
2276 stream_process_counters(s);
2277
2278 /* don't count other requests' data */
2279 s->logs.bytes_in -= ci_data(&s->req);
2280 s->logs.bytes_out -= ci_data(&s->res);
2281
2282 /* we may need to know the position in the queue */
2283 pendconn_free(s);
2284
2285 /* let's do a final log if we need it */
2286 if (!LIST_ISEMPTY(&fe->logformat) && s->logs.logwait &&
2287 !(s->flags & SF_MONITOR) &&
2288 (!(fe->options & PR_O_NULLNOLOG) || s->req.total)) {
2289 s->do_log(s);
2290 }
2291
2292 /* stop tracking content-based counters */
2293 stream_stop_content_counters(s);
2294 stream_update_time_stats(s);
2295
2296 s->logs.accept_date = date; /* user-visible date for logging */
2297 s->logs.tv_accept = now; /* corrected date for internal use */
2298 s->logs.t_handshake = 0; /* There are no handshake in keep alive connection. */
2299 s->logs.t_idle = -1;
2300 tv_zero(&s->logs.tv_request);
2301 s->logs.t_queue = -1;
2302 s->logs.t_connect = -1;
2303 s->logs.t_data = -1;
2304 s->logs.t_close = 0;
2305 s->logs.prx_queue_pos = 0; /* we get the number of pending conns before us */
2306 s->logs.srv_queue_pos = 0; /* we will get this number soon */
2307
2308 s->logs.bytes_in = s->req.total = ci_data(&s->req);
2309 s->logs.bytes_out = s->res.total = ci_data(&s->res);
2310
2311 stream_del_srv_conn(s);
2312 if (objt_server(s->target)) {
2313 if (s->flags & SF_CURR_SESS) {
2314 s->flags &= ~SF_CURR_SESS;
Willy Tarreaub54c40a2018-12-02 19:28:41 +01002315 HA_ATOMIC_SUB(&__objt_server(s->target)->cur_sess, 1);
William Lallemandcf62f7e2018-10-26 14:47:40 +02002316 }
Willy Tarreaub54c40a2018-12-02 19:28:41 +01002317 if (may_dequeue_tasks(__objt_server(s->target), be))
2318 process_srv_queue(__objt_server(s->target));
William Lallemandcf62f7e2018-10-26 14:47:40 +02002319 }
2320
2321 s->target = NULL;
2322
2323 /* only release our endpoint if we don't intend to reuse the
2324 * connection.
2325 */
2326 if (!si_conn_ready(&s->si[1])) {
2327 si_release_endpoint(&s->si[1]);
2328 s->srv_conn = NULL;
2329 }
2330
2331 s->si[1].state = s->si[1].prev_state = SI_ST_INI;
2332 s->si[1].err_type = SI_ET_NONE;
2333 s->si[1].conn_retries = 0; /* used for logging too */
2334 s->si[1].exp = TICK_ETERNITY;
2335 s->si[1].flags &= SI_FL_ISBACK | SI_FL_DONT_WAKE; /* we're in the context of process_stream */
2336 s->req.flags &= ~(CF_SHUTW|CF_SHUTW_NOW|CF_AUTO_CONNECT|CF_WRITE_ERROR|CF_STREAMER|CF_STREAMER_FAST|CF_NEVER_WAIT|CF_WAKE_CONNECT|CF_WROTE_DATA);
William Lallemandd12fb062019-06-25 18:00:19 +02002337 s->res.flags &= ~(CF_SHUTR|CF_SHUTR_NOW|CF_READ_ATTACHED|CF_READ_ERROR|CF_READ_NOEXP|CF_STREAMER|CF_STREAMER_FAST|CF_WRITE_PARTIAL|CF_NEVER_WAIT|CF_WROTE_DATA|CF_READ_NULL);
William Lallemandcf62f7e2018-10-26 14:47:40 +02002338 s->flags &= ~(SF_DIRECT|SF_ASSIGNED|SF_ADDR_SET|SF_BE_ASSIGNED|SF_FORCE_PRST|SF_IGNORE_PRST);
2339 s->flags &= ~(SF_CURR_SESS|SF_REDIRECTABLE|SF_SRV_REUSED);
2340 s->flags &= ~(SF_ERR_MASK|SF_FINST_MASK|SF_REDISP);
2341 /* reinitialise the current rule list pointer to NULL. We are sure that
2342 * any rulelist match the NULL pointer.
2343 */
2344 s->current_rule_list = NULL;
2345
2346 s->be = strm_fe(s);
2347 s->logs.logwait = strm_fe(s)->to_log;
2348 s->logs.level = 0;
2349 stream_del_srv_conn(s);
2350 s->target = NULL;
2351 /* re-init store persistence */
2352 s->store_count = 0;
2353 s->uniq_id = global.req_count++;
2354
2355 s->req.flags |= CF_READ_DONTWAIT; /* one read is usually enough */
2356
2357 s->req.flags |= CF_WAKE_ONCE; /* need to be called again if there is some command left in the request */
2358
2359 s->req.analysers |= AN_REQ_WAIT_CLI;
2360 s->res.analysers &= ~AN_RES_WAIT_CLI;
2361
2362 /* We must trim any excess data from the response buffer, because we
2363 * may have blocked an invalid response from a server that we don't
Joseph Herlant008b3ce2018-11-25 12:51:45 -08002364 * want to accidently forward once we disable the analysers, nor do
William Lallemandcf62f7e2018-10-26 14:47:40 +02002365 * we want those data to come along with next response. A typical
2366 * example of such data would be from a buggy server responding to
2367 * a HEAD with some data, or sending more than the advertised
2368 * content-length.
2369 */
2370 if (unlikely(ci_data(&s->res)))
2371 b_set_data(&s->res.buf, co_data(&s->res));
2372
2373 /* Now we can realign the response buffer */
2374 c_realign_if_empty(&s->res);
2375
2376 s->req.rto = strm_fe(s)->timeout.client;
2377 s->req.wto = TICK_ETERNITY;
2378
2379 s->res.rto = TICK_ETERNITY;
2380 s->res.wto = strm_fe(s)->timeout.client;
2381
2382 s->req.rex = TICK_ETERNITY;
2383 s->req.wex = TICK_ETERNITY;
2384 s->req.analyse_exp = TICK_ETERNITY;
2385 s->res.rex = TICK_ETERNITY;
2386 s->res.wex = TICK_ETERNITY;
2387 s->res.analyse_exp = TICK_ETERNITY;
2388 s->si[1].hcto = TICK_ETERNITY;
2389
2390 /* we're removing the analysers, we MUST re-enable events detection.
2391 * We don't enable close on the response channel since it's either
2392 * already closed, or in keep-alive with an idle connection handler.
2393 */
2394 channel_auto_read(&s->req);
2395 channel_auto_close(&s->req);
2396 channel_auto_read(&s->res);
2397
2398
2399 return 1;
2400 }
2401 return 0;
2402}
2403
William Lallemand8a022572018-10-26 14:47:35 +02002404/*
2405 * The mworker functions are used to initialize the CLI in the master process
2406 */
2407
William Lallemand309dc9a2018-10-26 14:47:45 +02002408 /*
2409 * Stop the mworker proxy
2410 */
2411void mworker_cli_proxy_stop()
2412{
William Lallemand550db6d2018-11-06 17:37:12 +01002413 if (mworker_proxy)
2414 stop_proxy(mworker_proxy);
William Lallemand309dc9a2018-10-26 14:47:45 +02002415}
2416
William Lallemand8a022572018-10-26 14:47:35 +02002417/*
2418 * Create the mworker CLI proxy
2419 */
2420int mworker_cli_proxy_create()
2421{
2422 struct mworker_proc *child;
William Lallemand744a0892018-11-22 16:46:51 +01002423 char *msg = NULL;
2424 char *errmsg = NULL;
William Lallemand8a022572018-10-26 14:47:35 +02002425
2426 mworker_proxy = calloc(1, sizeof(*mworker_proxy));
2427 if (!mworker_proxy)
2428 return -1;
2429
2430 init_new_proxy(mworker_proxy);
2431 mworker_proxy->next = proxies_list;
2432 proxies_list = mworker_proxy;
2433 mworker_proxy->id = strdup("MASTER");
William Lallemandcf62f7e2018-10-26 14:47:40 +02002434 mworker_proxy->mode = PR_MODE_CLI;
William Lallemand8a022572018-10-26 14:47:35 +02002435 mworker_proxy->state = PR_STNEW;
2436 mworker_proxy->last_change = now.tv_sec;
2437 mworker_proxy->cap = PR_CAP_LISTEN; /* this is a listen section */
2438 mworker_proxy->maxconn = 10; /* default to 10 concurrent connections */
2439 mworker_proxy->timeout.client = 0; /* no timeout */
2440 mworker_proxy->conf.file = strdup("MASTER");
2441 mworker_proxy->conf.line = 0;
2442 mworker_proxy->accept = frontend_accept;
2443 mworker_proxy-> lbprm.algo = BE_LB_ALGO_NONE;
2444
2445 /* Does not init the default target the CLI applet, but must be done in
2446 * the request parsing code */
2447 mworker_proxy->default_target = NULL;
2448
2449 /* the check_config_validity() will get an ID for the proxy */
2450 mworker_proxy->uuid = -1;
2451
2452 proxy_store_name(mworker_proxy);
2453
2454 /* create all servers using the mworker_proc list */
2455 list_for_each_entry(child, &proc_list, list) {
William Lallemand8a022572018-10-26 14:47:35 +02002456 struct server *newsrv = NULL;
2457 struct sockaddr_storage *sk;
2458 int port1, port2, port;
2459 struct protocol *proto;
William Lallemand8a022572018-10-26 14:47:35 +02002460
William Lallemandf0d9dd42020-01-14 15:25:02 +01002461 /* only the workers support the master CLI */
2462 if (!(child->options & PROC_O_TYPE_WORKER))
2463 continue;
2464
William Lallemand8a022572018-10-26 14:47:35 +02002465 newsrv = new_server(mworker_proxy);
2466 if (!newsrv)
William Lallemand744a0892018-11-22 16:46:51 +01002467 goto error;
William Lallemand8a022572018-10-26 14:47:35 +02002468
2469 /* we don't know the new pid yet */
2470 if (child->pid == -1)
2471 memprintf(&msg, "cur-%d", child->relative_pid);
2472 else
2473 memprintf(&msg, "old-%d", child->pid);
2474
2475 newsrv->next = mworker_proxy->srv;
2476 mworker_proxy->srv = newsrv;
2477 newsrv->conf.file = strdup(msg);
2478 newsrv->id = strdup(msg);
2479 newsrv->conf.line = 0;
2480
2481 memprintf(&msg, "sockpair@%d", child->ipc_fd[0]);
Tim Duesterhus4cae3b22018-11-22 16:46:50 +01002482 if ((sk = str2sa_range(msg, &port, &port1, &port2, &errmsg, NULL, NULL, 0)) == 0) {
William Lallemand744a0892018-11-22 16:46:51 +01002483 goto error;
Tim Duesterhus4cae3b22018-11-22 16:46:50 +01002484 }
2485 free(msg);
2486 msg = NULL;
William Lallemand8a022572018-10-26 14:47:35 +02002487
2488 proto = protocol_by_family(sk->ss_family);
2489 if (!proto || !proto->connect) {
William Lallemand744a0892018-11-22 16:46:51 +01002490 goto error;
William Lallemand8a022572018-10-26 14:47:35 +02002491 }
2492
2493 /* no port specified */
2494 newsrv->flags |= SRV_F_MAPPORTS;
2495 newsrv->addr = *sk;
William Lallemandcf62f7e2018-10-26 14:47:40 +02002496 /* don't let the server participate to load balancing */
2497 newsrv->iweight = 0;
2498 newsrv->uweight = 0;
William Lallemand8a022572018-10-26 14:47:35 +02002499 srv_lb_commit_status(newsrv);
William Lallemand291810d2018-10-26 14:47:38 +02002500
2501 child->srv = newsrv;
William Lallemand8a022572018-10-26 14:47:35 +02002502 }
2503 return 0;
William Lallemand744a0892018-11-22 16:46:51 +01002504
2505error:
2506 ha_alert("%s\n", errmsg);
2507
2508 list_for_each_entry(child, &proc_list, list) {
2509 free((char *)child->srv->conf.file); /* cast because of const char * */
2510 free(child->srv->id);
2511 free(child->srv);
2512 child->srv = NULL;
2513 }
2514 free(mworker_proxy->id);
2515 free(mworker_proxy->conf.file);
2516 free(mworker_proxy);
2517 mworker_proxy = NULL;
2518 free(errmsg);
2519 free(msg);
2520
2521 return -1;
William Lallemand8a022572018-10-26 14:47:35 +02002522}
Olivier Houchardf886e342017-04-05 22:24:59 +02002523
William Lallemandce83b4a2018-10-26 14:47:30 +02002524/*
William Lallemande7361152018-10-26 14:47:36 +02002525 * Create a new listener for the master CLI proxy
2526 */
2527int mworker_cli_proxy_new_listener(char *line)
2528{
2529 struct bind_conf *bind_conf;
2530 struct listener *l;
2531 char *err = NULL;
2532 char *args[MAX_LINE_ARGS + 1];
2533 int arg;
2534 int cur_arg;
2535
William Lallemandb4f87862019-11-25 09:58:37 +01002536 arg = 1;
William Lallemande7361152018-10-26 14:47:36 +02002537 args[0] = line;
2538
2539 /* args is a bind configuration with spaces replaced by commas */
2540 while (*line && arg < MAX_LINE_ARGS) {
2541
2542 if (*line == ',') {
2543 *line++ = '\0';
2544 while (*line == ',')
2545 line++;
William Lallemandb4f87862019-11-25 09:58:37 +01002546 args[arg++] = line;
William Lallemande7361152018-10-26 14:47:36 +02002547 }
2548 line++;
2549 }
2550
William Lallemandb4f87862019-11-25 09:58:37 +01002551 args[arg] = "\0";
William Lallemande7361152018-10-26 14:47:36 +02002552
2553 bind_conf = bind_conf_alloc(mworker_proxy, "master-socket", 0, "", xprt_get(XPRT_RAW));
William Lallemand744a0892018-11-22 16:46:51 +01002554 if (!bind_conf)
2555 goto err;
William Lallemande7361152018-10-26 14:47:36 +02002556
2557 bind_conf->level &= ~ACCESS_LVL_MASK;
2558 bind_conf->level |= ACCESS_LVL_ADMIN;
2559
2560 if (!str2listener(args[0], mworker_proxy, bind_conf, "master-socket", 0, &err)) {
2561 ha_alert("Cannot create the listener of the master CLI\n");
William Lallemand744a0892018-11-22 16:46:51 +01002562 goto err;
William Lallemande7361152018-10-26 14:47:36 +02002563 }
2564
2565 cur_arg = 1;
2566
2567 while (*args[cur_arg]) {
2568 static int bind_dumped;
2569 struct bind_kw *kw;
2570
2571 kw = bind_find_kw(args[cur_arg]);
2572 if (kw) {
2573 if (!kw->parse) {
2574 memprintf(&err, "'%s %s' : '%s' option is not implemented in this version (check build options).",
2575 args[0], args[1], args[cur_arg]);
2576 goto err;
2577 }
2578
2579 if (kw->parse(args, cur_arg, global.stats_fe, bind_conf, &err) != 0) {
2580 if (err)
2581 memprintf(&err, "'%s %s' : '%s'", args[0], args[1], err);
2582 else
2583 memprintf(&err, "'%s %s' : error encountered while processing '%s'",
2584 args[0], args[1], args[cur_arg]);
2585 goto err;
2586 }
2587
2588 cur_arg += 1 + kw->skip;
2589 continue;
2590 }
2591
2592 if (!bind_dumped) {
2593 bind_dump_kws(&err);
2594 indent_msg(&err, 4);
2595 bind_dumped = 1;
2596 }
2597
2598 memprintf(&err, "'%s %s' : unknown keyword '%s'.%s%s",
2599 args[0], args[1], args[cur_arg],
2600 err ? " Registered keywords :" : "", err ? err : "");
2601 goto err;
2602 }
2603
2604
2605 list_for_each_entry(l, &bind_conf->listeners, by_bind) {
William Lallemande7361152018-10-26 14:47:36 +02002606 l->accept = session_accept_fd;
2607 l->default_target = mworker_proxy->default_target;
2608 /* don't make the peers subject to global limits and don't close it in the master */
2609 l->options |= (LI_O_UNLIMITED|LI_O_MWORKER); /* we are keeping this FD in the master */
2610 l->nice = -64; /* we want to boost priority for local stats */
Willy Tarreau18215cb2019-02-27 16:25:28 +01002611 global.maxsock++; /* for the listening socket */
William Lallemande7361152018-10-26 14:47:36 +02002612 }
Willy Tarreau18215cb2019-02-27 16:25:28 +01002613 global.maxsock += mworker_proxy->maxconn;
William Lallemande7361152018-10-26 14:47:36 +02002614
2615 return 0;
2616
2617err:
2618 ha_alert("%s\n", err);
William Lallemand744a0892018-11-22 16:46:51 +01002619 free(err);
2620 free(bind_conf);
William Lallemande7361152018-10-26 14:47:36 +02002621 return -1;
2622
2623}
2624
2625/*
William Lallemandce83b4a2018-10-26 14:47:30 +02002626 * Create a new CLI socket using a socketpair for a worker process
2627 * <mworker_proc> is the process structure, and <proc> is the process number
2628 */
2629int mworker_cli_sockpair_new(struct mworker_proc *mworker_proc, int proc)
2630{
2631 struct bind_conf *bind_conf;
2632 struct listener *l;
2633 char *path = NULL;
2634 char *err = NULL;
2635
2636 /* master pipe to ensure the master is still alive */
2637 if (socketpair(AF_UNIX, SOCK_STREAM, 0, mworker_proc->ipc_fd) < 0) {
2638 ha_alert("Cannot create worker socketpair.\n");
2639 return -1;
2640 }
2641
2642 /* XXX: we might want to use a separate frontend at some point */
2643 if (!global.stats_fe) {
2644 if ((global.stats_fe = alloc_stats_fe("GLOBAL", "master-socket", 0)) == NULL) {
2645 ha_alert("out of memory trying to allocate the stats frontend");
William Lallemand744a0892018-11-22 16:46:51 +01002646 goto error;
William Lallemandce83b4a2018-10-26 14:47:30 +02002647 }
2648 }
2649
2650 bind_conf = bind_conf_alloc(global.stats_fe, "master-socket", 0, "", xprt_get(XPRT_RAW));
William Lallemand744a0892018-11-22 16:46:51 +01002651 if (!bind_conf)
2652 goto error;
2653
William Lallemandce83b4a2018-10-26 14:47:30 +02002654 bind_conf->level &= ~ACCESS_LVL_MASK;
2655 bind_conf->level |= ACCESS_LVL_ADMIN; /* TODO: need to lower the rights with a CLI keyword*/
2656
2657 bind_conf->bind_proc = 1UL << proc;
2658 global.stats_fe->bind_proc = 0; /* XXX: we should be careful with that, it can be removed by configuration */
2659
2660 if (!memprintf(&path, "sockpair@%d", mworker_proc->ipc_fd[1])) {
2661 ha_alert("Cannot allocate listener.\n");
William Lallemand744a0892018-11-22 16:46:51 +01002662 goto error;
William Lallemandce83b4a2018-10-26 14:47:30 +02002663 }
2664
2665 if (!str2listener(path, global.stats_fe, bind_conf, "master-socket", 0, &err)) {
Tim Duesterhus4cae3b22018-11-22 16:46:50 +01002666 free(path);
William Lallemandce83b4a2018-10-26 14:47:30 +02002667 ha_alert("Cannot create a CLI sockpair listener for process #%d\n", proc);
William Lallemand744a0892018-11-22 16:46:51 +01002668 goto error;
William Lallemandce83b4a2018-10-26 14:47:30 +02002669 }
Tim Duesterhus4cae3b22018-11-22 16:46:50 +01002670 free(path);
2671 path = NULL;
William Lallemandce83b4a2018-10-26 14:47:30 +02002672
2673 list_for_each_entry(l, &bind_conf->listeners, by_bind) {
William Lallemandce83b4a2018-10-26 14:47:30 +02002674 l->accept = session_accept_fd;
2675 l->default_target = global.stats_fe->default_target;
William Lallemanda3372292018-11-16 16:57:22 +01002676 l->options |= (LI_O_UNLIMITED | LI_O_NOSTOP);
William Lallemandce83b4a2018-10-26 14:47:30 +02002677 /* it's a sockpair but we don't want to keep the fd in the master */
2678 l->options &= ~LI_O_INHERITED;
2679 l->nice = -64; /* we want to boost priority for local stats */
Willy Tarreau18215cb2019-02-27 16:25:28 +01002680 global.maxsock++; /* for the listening socket */
William Lallemandce83b4a2018-10-26 14:47:30 +02002681 }
2682
2683 return 0;
William Lallemand744a0892018-11-22 16:46:51 +01002684
2685error:
2686 close(mworker_proc->ipc_fd[0]);
2687 close(mworker_proc->ipc_fd[1]);
2688 free(err);
2689
2690 return -1;
William Lallemandce83b4a2018-10-26 14:47:30 +02002691}
2692
William Lallemand74c24fb2016-11-21 17:18:36 +01002693static struct applet cli_applet = {
2694 .obj_type = OBJ_TYPE_APPLET,
2695 .name = "<CLI>", /* used for logging */
2696 .fct = cli_io_handler,
2697 .release = cli_release_handler,
2698};
2699
Willy Tarreau0a739292016-11-22 20:21:23 +01002700/* register cli keywords */
2701static struct cli_kw_list cli_kws = {{ },{
Aurélien Nephtaliabbf6072018-04-18 13:26:46 +02002702 { { "help", NULL }, NULL, cli_parse_simple, NULL },
2703 { { "prompt", NULL }, NULL, cli_parse_simple, NULL },
2704 { { "quit", NULL }, NULL, cli_parse_simple, NULL },
Willy Tarreau2af99412016-11-23 11:10:59 +01002705 { { "set", "maxconn", "global", NULL }, "set maxconn global : change the per-process maxconn setting", cli_parse_set_maxconn_global, NULL },
Willy Tarreau45c742b2016-11-24 14:51:17 +01002706 { { "set", "rate-limit", NULL }, "set rate-limit : change a rate limiting value", cli_parse_set_ratelimit, NULL },
Andjelko Iharosc4df59e2017-07-20 11:59:48 +02002707 { { "set", "severity-output", NULL }, "set severity-output [none|number|string] : set presence of severity level in feedback information", cli_parse_set_severity_output, NULL, NULL },
Willy Tarreau599852e2016-11-22 20:33:32 +01002708 { { "set", "timeout", NULL }, "set timeout : change a timeout setting", cli_parse_set_timeout, NULL, NULL },
Willy Tarreau0a739292016-11-22 20:21:23 +01002709 { { "show", "env", NULL }, "show env [var] : dump environment variables known to the process", cli_parse_show_env, cli_io_handler_show_env, NULL },
William Lallemand35851fb2018-10-26 14:47:42 +02002710 { { "show", "cli", "sockets", NULL }, "show cli sockets : dump list of cli sockets", cli_parse_default, cli_io_handler_show_cli_sock, NULL, NULL, ACCESS_MASTER },
William Lallemand67a234f2018-12-13 09:05:45 +01002711 { { "show", "cli", "level", NULL }, "show cli level : display the level of the current CLI session", cli_parse_show_lvl, NULL, NULL, NULL, ACCESS_MASTER},
Willy Tarreau7a4a0ac2017-07-25 19:32:50 +02002712 { { "show", "fd", NULL }, "show fd [num] : dump list of file descriptors in use", cli_parse_show_fd, cli_io_handler_show_fd, NULL },
Willy Tarreaud80cb4e2018-01-20 19:30:13 +01002713 { { "show", "activity", NULL }, "show activity : show per-thread activity stats (for support/developers)", cli_parse_default, cli_io_handler_show_activity, NULL },
William Lallemand67a234f2018-12-13 09:05:45 +01002714 { { "operator", NULL }, "operator : lower the level of the current CLI session to operator", cli_parse_set_lvl, NULL, NULL, NULL, ACCESS_MASTER},
2715 { { "user", NULL }, "user : lower the level of the current CLI session to user", cli_parse_set_lvl, NULL, NULL, NULL, ACCESS_MASTER},
Olivier Houchardf886e342017-04-05 22:24:59 +02002716 { { "_getsocks", NULL }, NULL, _getsocks, NULL },
Willy Tarreau0a739292016-11-22 20:21:23 +01002717 {{},}
2718}};
2719
Willy Tarreau0108d902018-11-25 19:14:37 +01002720INITCALL1(STG_REGISTER, cli_register_kw, &cli_kws);
2721
William Lallemand74c24fb2016-11-21 17:18:36 +01002722static struct cfg_kw_list cfg_kws = {ILH, {
2723 { CFG_GLOBAL, "stats", stats_parse_global },
2724 { 0, NULL, NULL },
2725}};
2726
Willy Tarreau0108d902018-11-25 19:14:37 +01002727INITCALL1(STG_REGISTER, cfg_register_keywords, &cfg_kws);
2728
William Lallemand74c24fb2016-11-21 17:18:36 +01002729static struct bind_kw_list bind_kws = { "STAT", { }, {
William Lallemandf6975e92017-05-26 17:42:10 +02002730 { "level", bind_parse_level, 1 }, /* set the unix socket admin level */
2731 { "expose-fd", bind_parse_expose_fd, 1 }, /* set the unix socket expose fd rights */
Andjelko Iharosc4df59e2017-07-20 11:59:48 +02002732 { "severity-output", bind_parse_severity_output, 1 }, /* set the severity output format */
William Lallemand74c24fb2016-11-21 17:18:36 +01002733 { NULL, NULL, 0 },
2734}};
2735
Willy Tarreau0108d902018-11-25 19:14:37 +01002736INITCALL1(STG_REGISTER, bind_register_keywords, &bind_kws);
William Lallemand74c24fb2016-11-21 17:18:36 +01002737
2738/*
2739 * Local variables:
2740 * c-indent-level: 8
2741 * c-basic-offset: 8
2742 * End:
2743 */