| /* |
| * Functions dedicated to statistics output and the stats socket |
| * |
| * Copyright 2000-2012 Willy Tarreau <w@1wt.eu> |
| * Copyright 2007-2009 Krzysztof Piotr Oledzki <ole@ans.pl> |
| * |
| * This program is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU General Public License |
| * as published by the Free Software Foundation; either version |
| * 2 of the License, or (at your option) any later version. |
| * |
| */ |
| |
| #include <ctype.h> |
| #include <errno.h> |
| #include <fcntl.h> |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <string.h> |
| #include <pwd.h> |
| #include <grp.h> |
| |
| #include <sys/socket.h> |
| #include <sys/stat.h> |
| #include <sys/types.h> |
| |
| #include <common/cfgparse.h> |
| #include <common/compat.h> |
| #include <common/config.h> |
| #include <common/debug.h> |
| #include <common/memory.h> |
| #include <common/mini-clist.h> |
| #include <common/standard.h> |
| #include <common/ticks.h> |
| #include <common/time.h> |
| #include <common/uri_auth.h> |
| #include <common/version.h> |
| #include <common/base64.h> |
| |
| #include <types/applet.h> |
| #include <types/cli.h> |
| #include <types/global.h> |
| #include <types/dns.h> |
| #include <types/stats.h> |
| |
| #include <proto/backend.h> |
| #include <proto/channel.h> |
| #include <proto/checks.h> |
| #include <proto/compression.h> |
| #include <proto/stats.h> |
| #include <proto/fd.h> |
| #include <proto/freq_ctr.h> |
| #include <proto/frontend.h> |
| #include <proto/log.h> |
| #include <proto/pattern.h> |
| #include <proto/pipe.h> |
| #include <proto/listener.h> |
| #include <proto/map.h> |
| #include <proto/proto_uxst.h> |
| #include <proto/proxy.h> |
| #include <proto/sample.h> |
| #include <proto/session.h> |
| #include <proto/stream.h> |
| #include <proto/server.h> |
| #include <proto/raw_sock.h> |
| #include <proto/stream_interface.h> |
| #include <proto/task.h> |
| |
| static int stats_dump_env_to_buffer(struct stream_interface *si); |
| |
| static struct applet cli_applet; |
| |
| static const char stats_sock_usage_msg[] = |
| "Unknown command. Please enter one of the following commands only :\n" |
| " clear counters : clear max statistics counters (add 'all' for all counters)\n" |
| " help : this message\n" |
| " prompt : toggle interactive mode with prompt\n" |
| " quit : disconnect\n" |
| " show env [var] : dump environment variables known to the process\n" |
| " set timeout : change a timeout setting\n" |
| " set maxconn : change a maxconn setting\n" |
| " set rate-limit : change a rate limiting value\n" |
| " disable : put a server or frontend in maintenance mode\n" |
| " enable : re-enable a server or frontend which is in maintenance mode\n" |
| " shutdown : kill a session or a frontend (eg:to release listening ports)\n" |
| ""; |
| |
| static const char stats_permission_denied_msg[] = |
| "Permission denied\n" |
| ""; |
| |
| |
| static char *dynamic_usage_msg = NULL; |
| |
| /* List head of cli keywords */ |
| static struct cli_kw_list cli_keywords = { |
| .list = LIST_HEAD_INIT(cli_keywords.list) |
| }; |
| |
| extern const char *stat_status_codes[]; |
| |
| char *cli_gen_usage_msg() |
| { |
| struct cli_kw_list *kw_list; |
| struct cli_kw *kw; |
| struct chunk *tmp = get_trash_chunk(); |
| struct chunk out; |
| |
| free(dynamic_usage_msg); |
| dynamic_usage_msg = NULL; |
| |
| if (LIST_ISEMPTY(&cli_keywords.list)) |
| return NULL; |
| |
| chunk_reset(tmp); |
| chunk_strcat(tmp, stats_sock_usage_msg); |
| list_for_each_entry(kw_list, &cli_keywords.list, list) { |
| kw = &kw_list->kw[0]; |
| while (kw->usage) { |
| chunk_appendf(tmp, " %s\n", kw->usage); |
| kw++; |
| } |
| } |
| chunk_init(&out, NULL, 0); |
| chunk_dup(&out, tmp); |
| dynamic_usage_msg = out.str; |
| return dynamic_usage_msg; |
| } |
| |
| struct cli_kw* cli_find_kw(char **args) |
| { |
| struct cli_kw_list *kw_list; |
| struct cli_kw *kw;/* current cli_kw */ |
| char **tmp_args; |
| const char **tmp_str_kw; |
| int found = 0; |
| |
| if (LIST_ISEMPTY(&cli_keywords.list)) |
| return NULL; |
| |
| list_for_each_entry(kw_list, &cli_keywords.list, list) { |
| kw = &kw_list->kw[0]; |
| while (*kw->str_kw) { |
| tmp_args = args; |
| tmp_str_kw = kw->str_kw; |
| while (*tmp_str_kw) { |
| if (strcmp(*tmp_str_kw, *tmp_args) == 0) { |
| found = 1; |
| } else { |
| found = 0; |
| break; |
| } |
| tmp_args++; |
| tmp_str_kw++; |
| } |
| if (found) |
| return (kw); |
| kw++; |
| } |
| } |
| return NULL; |
| } |
| |
| void cli_register_kw(struct cli_kw_list *kw_list) |
| { |
| LIST_ADDQ(&cli_keywords.list, &kw_list->list); |
| } |
| |
| |
| /* allocate a new stats frontend named <name>, and return it |
| * (or NULL in case of lack of memory). |
| */ |
| static struct proxy *alloc_stats_fe(const char *name, const char *file, int line) |
| { |
| struct proxy *fe; |
| |
| fe = calloc(1, sizeof(*fe)); |
| if (!fe) |
| return NULL; |
| |
| init_new_proxy(fe); |
| fe->next = proxy; |
| proxy = fe; |
| fe->last_change = now.tv_sec; |
| fe->id = strdup("GLOBAL"); |
| fe->cap = PR_CAP_FE; |
| fe->maxconn = 10; /* default to 10 concurrent connections */ |
| fe->timeout.client = MS_TO_TICKS(10000); /* default timeout of 10 seconds */ |
| fe->conf.file = strdup(file); |
| fe->conf.line = line; |
| fe->accept = frontend_accept; |
| fe->default_target = &cli_applet.obj_type; |
| |
| /* the stats frontend is the only one able to assign ID #0 */ |
| fe->conf.id.key = fe->uuid = 0; |
| eb32_insert(&used_proxy_id, &fe->conf.id); |
| return fe; |
| } |
| |
| /* This function parses a "stats" statement in the "global" section. It returns |
| * -1 if there is any error, otherwise zero. If it returns -1, it will write an |
| * error message into the <err> buffer which will be preallocated. The trailing |
| * '\n' must not be written. The function must be called with <args> pointing to |
| * the first word after "stats". |
| */ |
| static int stats_parse_global(char **args, int section_type, struct proxy *curpx, |
| struct proxy *defpx, const char *file, int line, |
| char **err) |
| { |
| struct bind_conf *bind_conf; |
| struct listener *l; |
| |
| if (!strcmp(args[1], "socket")) { |
| int cur_arg; |
| |
| if (*args[2] == 0) { |
| memprintf(err, "'%s %s' in global section expects an address or a path to a UNIX socket", args[0], args[1]); |
| return -1; |
| } |
| |
| if (!global.stats_fe) { |
| if ((global.stats_fe = alloc_stats_fe("GLOBAL", file, line)) == NULL) { |
| memprintf(err, "'%s %s' : out of memory trying to allocate a frontend", args[0], args[1]); |
| return -1; |
| } |
| } |
| |
| bind_conf = bind_conf_alloc(&global.stats_fe->conf.bind, file, line, args[2]); |
| bind_conf->level = ACCESS_LVL_OPER; /* default access level */ |
| |
| if (!str2listener(args[2], global.stats_fe, bind_conf, file, line, err)) { |
| memprintf(err, "parsing [%s:%d] : '%s %s' : %s\n", |
| file, line, args[0], args[1], err && *err ? *err : "error"); |
| return -1; |
| } |
| |
| cur_arg = 3; |
| while (*args[cur_arg]) { |
| static int bind_dumped; |
| struct bind_kw *kw; |
| |
| kw = bind_find_kw(args[cur_arg]); |
| if (kw) { |
| if (!kw->parse) { |
| memprintf(err, "'%s %s' : '%s' option is not implemented in this version (check build options).", |
| args[0], args[1], args[cur_arg]); |
| return -1; |
| } |
| |
| if (kw->parse(args, cur_arg, global.stats_fe, bind_conf, err) != 0) { |
| if (err && *err) |
| memprintf(err, "'%s %s' : '%s'", args[0], args[1], *err); |
| else |
| memprintf(err, "'%s %s' : error encountered while processing '%s'", |
| args[0], args[1], args[cur_arg]); |
| return -1; |
| } |
| |
| cur_arg += 1 + kw->skip; |
| continue; |
| } |
| |
| if (!bind_dumped) { |
| bind_dump_kws(err); |
| indent_msg(err, 4); |
| bind_dumped = 1; |
| } |
| |
| memprintf(err, "'%s %s' : unknown keyword '%s'.%s%s", |
| args[0], args[1], args[cur_arg], |
| err && *err ? " Registered keywords :" : "", err && *err ? *err : ""); |
| return -1; |
| } |
| |
| list_for_each_entry(l, &bind_conf->listeners, by_bind) { |
| l->maxconn = global.stats_fe->maxconn; |
| l->backlog = global.stats_fe->backlog; |
| l->accept = session_accept_fd; |
| l->handler = process_stream; |
| l->default_target = global.stats_fe->default_target; |
| l->options |= LI_O_UNLIMITED; /* don't make the peers subject to global limits */ |
| l->nice = -64; /* we want to boost priority for local stats */ |
| global.maxsock += l->maxconn; |
| } |
| } |
| else if (!strcmp(args[1], "timeout")) { |
| unsigned timeout; |
| const char *res = parse_time_err(args[2], &timeout, TIME_UNIT_MS); |
| |
| if (res) { |
| memprintf(err, "'%s %s' : unexpected character '%c'", args[0], args[1], *res); |
| return -1; |
| } |
| |
| if (!timeout) { |
| memprintf(err, "'%s %s' expects a positive value", args[0], args[1]); |
| return -1; |
| } |
| if (!global.stats_fe) { |
| if ((global.stats_fe = alloc_stats_fe("GLOBAL", file, line)) == NULL) { |
| memprintf(err, "'%s %s' : out of memory trying to allocate a frontend", args[0], args[1]); |
| return -1; |
| } |
| } |
| global.stats_fe->timeout.client = MS_TO_TICKS(timeout); |
| } |
| else if (!strcmp(args[1], "maxconn")) { |
| int maxconn = atol(args[2]); |
| |
| if (maxconn <= 0) { |
| memprintf(err, "'%s %s' expects a positive value", args[0], args[1]); |
| return -1; |
| } |
| |
| if (!global.stats_fe) { |
| if ((global.stats_fe = alloc_stats_fe("GLOBAL", file, line)) == NULL) { |
| memprintf(err, "'%s %s' : out of memory trying to allocate a frontend", args[0], args[1]); |
| return -1; |
| } |
| } |
| global.stats_fe->maxconn = maxconn; |
| } |
| else if (!strcmp(args[1], "bind-process")) { /* enable the socket only on some processes */ |
| int cur_arg = 2; |
| unsigned long set = 0; |
| |
| if (!global.stats_fe) { |
| if ((global.stats_fe = alloc_stats_fe("GLOBAL", file, line)) == NULL) { |
| memprintf(err, "'%s %s' : out of memory trying to allocate a frontend", args[0], args[1]); |
| return -1; |
| } |
| } |
| |
| while (*args[cur_arg]) { |
| unsigned int low, high; |
| |
| if (strcmp(args[cur_arg], "all") == 0) { |
| set = 0; |
| break; |
| } |
| else if (strcmp(args[cur_arg], "odd") == 0) { |
| set |= ~0UL/3UL; /* 0x555....555 */ |
| } |
| else if (strcmp(args[cur_arg], "even") == 0) { |
| set |= (~0UL/3UL) << 1; /* 0xAAA...AAA */ |
| } |
| else if (isdigit((int)*args[cur_arg])) { |
| char *dash = strchr(args[cur_arg], '-'); |
| |
| low = high = str2uic(args[cur_arg]); |
| if (dash) |
| high = str2uic(dash + 1); |
| |
| if (high < low) { |
| unsigned int swap = low; |
| low = high; |
| high = swap; |
| } |
| |
| if (low < 1 || high > LONGBITS) { |
| memprintf(err, "'%s %s' supports process numbers from 1 to %d.\n", |
| args[0], args[1], LONGBITS); |
| return -1; |
| } |
| while (low <= high) |
| set |= 1UL << (low++ - 1); |
| } |
| else { |
| memprintf(err, |
| "'%s %s' expects 'all', 'odd', 'even', or a list of process ranges with numbers from 1 to %d.\n", |
| args[0], args[1], LONGBITS); |
| return -1; |
| } |
| cur_arg++; |
| } |
| global.stats_fe->bind_proc = set; |
| } |
| else { |
| memprintf(err, "'%s' only supports 'socket', 'maxconn', 'bind-process' and 'timeout' (got '%s')", args[0], args[1]); |
| return -1; |
| } |
| return 0; |
| } |
| |
| /* Verifies that the CLI at least has a level at least as high as <level> |
| * (typically ACCESS_LVL_ADMIN). Returns 1 if OK, otherwise 0. In case of |
| * failure, an error message is prepared and the appctx's state is adjusted |
| * to print it so that a return 1 is enough to abort any processing. |
| */ |
| int cli_has_level(struct appctx *appctx, int level) |
| { |
| struct stream_interface *si = appctx->owner; |
| struct stream *s = si_strm(si); |
| |
| if (strm_li(s)->bind_conf->level < level) { |
| appctx->ctx.cli.msg = stats_permission_denied_msg; |
| appctx->st0 = STAT_CLI_PRINT; |
| return 0; |
| } |
| return 1; |
| } |
| |
| |
| /* Expects to find a frontend named <arg> and returns it, otherwise displays various |
| * adequate error messages and returns NULL. This function also expects the stream |
| * level to be admin. |
| */ |
| static struct proxy *expect_frontend_admin(struct stream *s, struct stream_interface *si, const char *arg) |
| { |
| struct appctx *appctx = __objt_appctx(si->end); |
| struct proxy *px; |
| |
| if (strm_li(s)->bind_conf->level < ACCESS_LVL_ADMIN) { |
| appctx->ctx.cli.msg = stats_permission_denied_msg; |
| appctx->st0 = STAT_CLI_PRINT; |
| return NULL; |
| } |
| |
| if (!*arg) { |
| appctx->ctx.cli.msg = "A frontend name is expected.\n"; |
| appctx->st0 = STAT_CLI_PRINT; |
| return NULL; |
| } |
| |
| px = proxy_fe_by_name(arg); |
| if (!px) { |
| appctx->ctx.cli.msg = "No such frontend.\n"; |
| appctx->st0 = STAT_CLI_PRINT; |
| return NULL; |
| } |
| return px; |
| } |
| |
| /* Expects to find a backend and a server in <arg> under the form <backend>/<server>, |
| * and returns the pointer to the server. Otherwise, display adequate error messages |
| * and returns NULL. This function also expects the stream level to be admin. Note: |
| * the <arg> is modified to remove the '/'. |
| */ |
| struct server *expect_server_admin(struct stream *s, struct stream_interface *si, char *arg) |
| { |
| struct appctx *appctx = __objt_appctx(si->end); |
| struct proxy *px; |
| struct server *sv; |
| char *line; |
| |
| if (strm_li(s)->bind_conf->level < ACCESS_LVL_ADMIN) { |
| appctx->ctx.cli.msg = stats_permission_denied_msg; |
| appctx->st0 = STAT_CLI_PRINT; |
| return NULL; |
| } |
| |
| /* split "backend/server" and make <line> point to server */ |
| for (line = arg; *line; line++) |
| if (*line == '/') { |
| *line++ = '\0'; |
| break; |
| } |
| |
| if (!*line || !*arg) { |
| appctx->ctx.cli.msg = "Require 'backend/server'.\n"; |
| appctx->st0 = STAT_CLI_PRINT; |
| return NULL; |
| } |
| |
| if (!get_backend_server(arg, line, &px, &sv)) { |
| appctx->ctx.cli.msg = px ? "No such server.\n" : "No such backend.\n"; |
| appctx->st0 = STAT_CLI_PRINT; |
| return NULL; |
| } |
| |
| if (px->state == PR_STSTOPPED) { |
| appctx->ctx.cli.msg = "Proxy is disabled.\n"; |
| appctx->st0 = STAT_CLI_PRINT; |
| return NULL; |
| } |
| |
| return sv; |
| } |
| |
| /* Processes the stats interpreter on the statistics socket. This function is |
| * called from an applet running in a stream interface. The function returns 1 |
| * if the request was understood, otherwise zero. It sets appctx->st0 to a value |
| * designating the function which will have to process the request, which can |
| * also be the print function to display the return message set into cli.msg. |
| */ |
| static int stats_sock_parse_request(struct stream_interface *si, char *line) |
| { |
| struct stream *s = si_strm(si); |
| struct appctx *appctx = __objt_appctx(si->end); |
| char *args[MAX_STATS_ARGS + 1]; |
| struct cli_kw *kw; |
| int arg; |
| int i, j; |
| |
| while (isspace((unsigned char)*line)) |
| line++; |
| |
| arg = 0; |
| args[arg] = line; |
| |
| while (*line && arg < MAX_STATS_ARGS) { |
| if (*line == '\\') { |
| line++; |
| if (*line == '\0') |
| break; |
| } |
| else if (isspace((unsigned char)*line)) { |
| *line++ = '\0'; |
| |
| while (isspace((unsigned char)*line)) |
| line++; |
| |
| args[++arg] = line; |
| continue; |
| } |
| |
| line++; |
| } |
| |
| while (++arg <= MAX_STATS_ARGS) |
| args[arg] = line; |
| |
| /* remove \ */ |
| arg = 0; |
| while (*args[arg] != '\0') { |
| j = 0; |
| for (i=0; args[arg][i] != '\0'; i++) { |
| if (args[arg][i] == '\\') |
| continue; |
| args[arg][j] = args[arg][i]; |
| j++; |
| } |
| args[arg][j] = '\0'; |
| arg++; |
| } |
| |
| appctx->ctx.stats.scope_str = 0; |
| appctx->ctx.stats.scope_len = 0; |
| appctx->ctx.stats.flags = 0; |
| if ((kw = cli_find_kw(args))) { |
| if (kw->parse) { |
| if (kw->parse(args, appctx, kw->private) == 0 && kw->io_handler) { |
| appctx->st0 = STAT_CLI_O_CUSTOM; |
| appctx->io_handler = kw->io_handler; |
| appctx->io_release = kw->io_release; |
| } |
| } |
| } else if (strcmp(args[0], "show") == 0) { |
| if (strcmp(args[1], "env") == 0) { |
| extern char **environ; |
| |
| if (strm_li(s)->bind_conf->level < ACCESS_LVL_OPER) { |
| appctx->ctx.cli.msg = stats_permission_denied_msg; |
| appctx->st0 = STAT_CLI_PRINT; |
| return 1; |
| } |
| appctx->ctx.env.var = environ; |
| appctx->st2 = STAT_ST_INIT; |
| appctx->st0 = STAT_CLI_O_ENV; // stats_dump_env_to_buffer |
| |
| if (*args[2]) { |
| int len = strlen(args[2]); |
| |
| for (; *appctx->ctx.env.var; appctx->ctx.env.var++) { |
| if (strncmp(*appctx->ctx.env.var, args[2], len) == 0 && |
| (*appctx->ctx.env.var)[len] == '=') |
| break; |
| } |
| if (!*appctx->ctx.env.var) { |
| appctx->ctx.cli.msg = "Variable not found\n"; |
| appctx->st0 = STAT_CLI_PRINT; |
| return 1; |
| } |
| appctx->st2 = STAT_ST_END; |
| } |
| } |
| else { /* neither "stat" nor "info" nor "sess" nor "errors" nor "table" */ |
| return 0; |
| } |
| } |
| else if (strcmp(args[0], "clear") == 0) { |
| if (strcmp(args[1], "counters") == 0) { |
| struct proxy *px; |
| struct server *sv; |
| struct listener *li; |
| int clrall = 0; |
| |
| if (strcmp(args[2], "all") == 0) |
| clrall = 1; |
| |
| /* check permissions */ |
| if (strm_li(s)->bind_conf->level < ACCESS_LVL_OPER || |
| (clrall && strm_li(s)->bind_conf->level < ACCESS_LVL_ADMIN)) { |
| appctx->ctx.cli.msg = stats_permission_denied_msg; |
| appctx->st0 = STAT_CLI_PRINT; |
| return 1; |
| } |
| |
| for (px = proxy; px; px = px->next) { |
| if (clrall) { |
| memset(&px->be_counters, 0, sizeof(px->be_counters)); |
| memset(&px->fe_counters, 0, sizeof(px->fe_counters)); |
| } |
| else { |
| px->be_counters.conn_max = 0; |
| px->be_counters.p.http.rps_max = 0; |
| px->be_counters.sps_max = 0; |
| px->be_counters.cps_max = 0; |
| px->be_counters.nbpend_max = 0; |
| |
| px->fe_counters.conn_max = 0; |
| px->fe_counters.p.http.rps_max = 0; |
| px->fe_counters.sps_max = 0; |
| px->fe_counters.cps_max = 0; |
| px->fe_counters.nbpend_max = 0; |
| } |
| |
| for (sv = px->srv; sv; sv = sv->next) |
| if (clrall) |
| memset(&sv->counters, 0, sizeof(sv->counters)); |
| else { |
| sv->counters.cur_sess_max = 0; |
| sv->counters.nbpend_max = 0; |
| sv->counters.sps_max = 0; |
| } |
| |
| list_for_each_entry(li, &px->conf.listeners, by_fe) |
| if (li->counters) { |
| if (clrall) |
| memset(li->counters, 0, sizeof(*li->counters)); |
| else |
| li->counters->conn_max = 0; |
| } |
| } |
| |
| global.cps_max = 0; |
| global.sps_max = 0; |
| return 1; |
| } |
| else { |
| /* unknown "clear" argument */ |
| return 0; |
| } |
| } |
| else if (strcmp(args[0], "set") == 0) { |
| if (strcmp(args[1], "timeout") == 0) { |
| if (strcmp(args[2], "cli") == 0) { |
| unsigned timeout; |
| const char *res; |
| |
| if (!*args[3]) { |
| appctx->ctx.cli.msg = "Expects an integer value.\n"; |
| appctx->st0 = STAT_CLI_PRINT; |
| return 1; |
| } |
| |
| res = parse_time_err(args[3], &timeout, TIME_UNIT_S); |
| if (res || timeout < 1) { |
| appctx->ctx.cli.msg = "Invalid timeout value.\n"; |
| appctx->st0 = STAT_CLI_PRINT; |
| return 1; |
| } |
| |
| s->req.rto = s->res.wto = 1 + MS_TO_TICKS(timeout*1000); |
| task_wakeup(s->task, TASK_WOKEN_MSG); // recompute timeouts |
| return 1; |
| } |
| else { |
| appctx->ctx.cli.msg = "'set timeout' only supports 'cli'.\n"; |
| appctx->st0 = STAT_CLI_PRINT; |
| return 1; |
| } |
| } |
| else if (strcmp(args[1], "maxconn") == 0) { |
| if (strcmp(args[2], "frontend") == 0) { |
| struct proxy *px; |
| struct listener *l; |
| int v; |
| |
| px = expect_frontend_admin(s, si, args[3]); |
| if (!px) |
| return 1; |
| |
| if (!*args[4]) { |
| appctx->ctx.cli.msg = "Integer value expected.\n"; |
| appctx->st0 = STAT_CLI_PRINT; |
| return 1; |
| } |
| |
| v = atoi(args[4]); |
| if (v < 0) { |
| appctx->ctx.cli.msg = "Value out of range.\n"; |
| appctx->st0 = STAT_CLI_PRINT; |
| return 1; |
| } |
| |
| /* OK, the value is fine, so we assign it to the proxy and to all of |
| * its listeners. The blocked ones will be dequeued. |
| */ |
| px->maxconn = v; |
| list_for_each_entry(l, &px->conf.listeners, by_fe) { |
| l->maxconn = v; |
| if (l->state == LI_FULL) |
| resume_listener(l); |
| } |
| |
| if (px->maxconn > px->feconn && !LIST_ISEMPTY(&px->listener_queue)) |
| dequeue_all_listeners(&px->listener_queue); |
| |
| return 1; |
| } |
| else if (strcmp(args[2], "server") == 0) { |
| struct server *sv; |
| const char *warning; |
| |
| sv = expect_server_admin(s, si, args[3]); |
| if (!sv) |
| return 1; |
| |
| warning = server_parse_maxconn_change_request(sv, args[4]); |
| if (warning) { |
| appctx->ctx.cli.msg = warning; |
| appctx->st0 = STAT_CLI_PRINT; |
| } |
| |
| return 1; |
| } |
| else if (strcmp(args[2], "global") == 0) { |
| int v; |
| |
| if (strm_li(s)->bind_conf->level < ACCESS_LVL_ADMIN) { |
| appctx->ctx.cli.msg = stats_permission_denied_msg; |
| appctx->st0 = STAT_CLI_PRINT; |
| return 1; |
| } |
| |
| if (!*args[3]) { |
| appctx->ctx.cli.msg = "Expects an integer value.\n"; |
| appctx->st0 = STAT_CLI_PRINT; |
| return 1; |
| } |
| |
| v = atoi(args[3]); |
| if (v > global.hardmaxconn) { |
| appctx->ctx.cli.msg = "Value out of range.\n"; |
| appctx->st0 = STAT_CLI_PRINT; |
| return 1; |
| } |
| |
| /* check for unlimited values */ |
| if (v <= 0) |
| v = global.hardmaxconn; |
| |
| global.maxconn = v; |
| |
| /* Dequeues all of the listeners waiting for a resource */ |
| if (!LIST_ISEMPTY(&global_listener_queue)) |
| dequeue_all_listeners(&global_listener_queue); |
| |
| return 1; |
| } |
| else { |
| appctx->ctx.cli.msg = "'set maxconn' only supports 'frontend', 'server', and 'global'.\n"; |
| appctx->st0 = STAT_CLI_PRINT; |
| return 1; |
| } |
| } |
| else if (strcmp(args[1], "rate-limit") == 0) { |
| if (strcmp(args[2], "connections") == 0) { |
| if (strcmp(args[3], "global") == 0) { |
| int v; |
| |
| if (strm_li(s)->bind_conf->level < ACCESS_LVL_ADMIN) { |
| appctx->ctx.cli.msg = stats_permission_denied_msg; |
| appctx->st0 = STAT_CLI_PRINT; |
| return 1; |
| } |
| |
| if (!*args[4]) { |
| appctx->ctx.cli.msg = "Expects an integer value.\n"; |
| appctx->st0 = STAT_CLI_PRINT; |
| return 1; |
| } |
| |
| v = atoi(args[4]); |
| if (v < 0) { |
| appctx->ctx.cli.msg = "Value out of range.\n"; |
| appctx->st0 = STAT_CLI_PRINT; |
| return 1; |
| } |
| |
| global.cps_lim = v; |
| |
| /* Dequeues all of the listeners waiting for a resource */ |
| if (!LIST_ISEMPTY(&global_listener_queue)) |
| dequeue_all_listeners(&global_listener_queue); |
| |
| return 1; |
| } |
| else { |
| appctx->ctx.cli.msg = "'set rate-limit connections' only supports 'global'.\n"; |
| appctx->st0 = STAT_CLI_PRINT; |
| return 1; |
| } |
| } |
| else if (strcmp(args[2], "sessions") == 0) { |
| if (strcmp(args[3], "global") == 0) { |
| int v; |
| |
| if (strm_li(s)->bind_conf->level < ACCESS_LVL_ADMIN) { |
| appctx->ctx.cli.msg = stats_permission_denied_msg; |
| appctx->st0 = STAT_CLI_PRINT; |
| return 1; |
| } |
| |
| if (!*args[4]) { |
| appctx->ctx.cli.msg = "Expects an integer value.\n"; |
| appctx->st0 = STAT_CLI_PRINT; |
| return 1; |
| } |
| |
| v = atoi(args[4]); |
| if (v < 0) { |
| appctx->ctx.cli.msg = "Value out of range.\n"; |
| appctx->st0 = STAT_CLI_PRINT; |
| return 1; |
| } |
| |
| global.sps_lim = v; |
| |
| /* Dequeues all of the listeners waiting for a resource */ |
| if (!LIST_ISEMPTY(&global_listener_queue)) |
| dequeue_all_listeners(&global_listener_queue); |
| |
| return 1; |
| } |
| else { |
| appctx->ctx.cli.msg = "'set rate-limit sessions' only supports 'global'.\n"; |
| appctx->st0 = STAT_CLI_PRINT; |
| return 1; |
| } |
| } |
| #ifdef USE_OPENSSL |
| else if (strcmp(args[2], "ssl-sessions") == 0) { |
| if (strcmp(args[3], "global") == 0) { |
| int v; |
| |
| if (strm_li(s)->bind_conf->level < ACCESS_LVL_ADMIN) { |
| appctx->ctx.cli.msg = stats_permission_denied_msg; |
| appctx->st0 = STAT_CLI_PRINT; |
| return 1; |
| } |
| |
| if (!*args[4]) { |
| appctx->ctx.cli.msg = "Expects an integer value.\n"; |
| appctx->st0 = STAT_CLI_PRINT; |
| return 1; |
| } |
| |
| v = atoi(args[4]); |
| if (v < 0) { |
| appctx->ctx.cli.msg = "Value out of range.\n"; |
| appctx->st0 = STAT_CLI_PRINT; |
| return 1; |
| } |
| |
| global.ssl_lim = v; |
| |
| /* Dequeues all of the listeners waiting for a resource */ |
| if (!LIST_ISEMPTY(&global_listener_queue)) |
| dequeue_all_listeners(&global_listener_queue); |
| |
| return 1; |
| } |
| else { |
| appctx->ctx.cli.msg = "'set rate-limit ssl-sessions' only supports 'global'.\n"; |
| appctx->st0 = STAT_CLI_PRINT; |
| return 1; |
| } |
| } |
| #endif |
| else if (strcmp(args[2], "http-compression") == 0) { |
| if (strcmp(args[3], "global") == 0) { |
| int v; |
| |
| if (strm_li(s)->bind_conf->level < ACCESS_LVL_ADMIN) { |
| appctx->ctx.cli.msg = stats_permission_denied_msg; |
| appctx->st0 = STAT_CLI_PRINT; |
| return 1; |
| } |
| |
| if (!*args[4]) { |
| appctx->ctx.cli.msg = "Expects a maximum input byte rate in kB/s.\n"; |
| appctx->st0 = STAT_CLI_PRINT; |
| return 1; |
| } |
| |
| v = atoi(args[4]); |
| global.comp_rate_lim = v * 1024; /* Kilo to bytes. */ |
| } |
| else { |
| appctx->ctx.cli.msg = "'set rate-limit http-compression' only supports 'global'.\n"; |
| appctx->st0 = STAT_CLI_PRINT; |
| return 1; |
| } |
| } |
| else { |
| appctx->ctx.cli.msg = "'set rate-limit' supports 'connections', 'sessions', 'ssl-sessions', and 'http-compression'.\n"; |
| appctx->st0 = STAT_CLI_PRINT; |
| return 1; |
| } |
| } else { /* unknown "set" parameter */ |
| return 0; |
| } |
| } |
| else if (strcmp(args[0], "enable") == 0) { |
| if (strcmp(args[1], "agent") == 0) { |
| struct server *sv; |
| |
| sv = expect_server_admin(s, si, args[2]); |
| if (!sv) |
| return 1; |
| |
| if (!(sv->agent.state & CHK_ST_CONFIGURED)) { |
| appctx->ctx.cli.msg = "Agent was not configured on this server, cannot enable.\n"; |
| appctx->st0 = STAT_CLI_PRINT; |
| return 1; |
| } |
| |
| sv->agent.state |= CHK_ST_ENABLED; |
| return 1; |
| } |
| else if (strcmp(args[1], "health") == 0) { |
| struct server *sv; |
| |
| sv = expect_server_admin(s, si, args[2]); |
| if (!sv) |
| return 1; |
| |
| if (!(sv->check.state & CHK_ST_CONFIGURED)) { |
| appctx->ctx.cli.msg = "Health checks are not configured on this server, cannot enable.\n"; |
| appctx->st0 = STAT_CLI_PRINT; |
| return 1; |
| } |
| |
| sv->check.state |= CHK_ST_ENABLED; |
| return 1; |
| } |
| else if (strcmp(args[1], "server") == 0) { |
| struct server *sv; |
| |
| sv = expect_server_admin(s, si, args[2]); |
| if (!sv) |
| return 1; |
| |
| srv_adm_set_ready(sv); |
| return 1; |
| } |
| else if (strcmp(args[1], "frontend") == 0) { |
| struct proxy *px; |
| |
| px = expect_frontend_admin(s, si, args[2]); |
| if (!px) |
| return 1; |
| |
| if (px->state == PR_STSTOPPED) { |
| appctx->ctx.cli.msg = "Frontend was previously shut down, cannot enable.\n"; |
| appctx->st0 = STAT_CLI_PRINT; |
| return 1; |
| } |
| |
| if (px->state != PR_STPAUSED) { |
| appctx->ctx.cli.msg = "Frontend is already enabled.\n"; |
| appctx->st0 = STAT_CLI_PRINT; |
| return 1; |
| } |
| |
| if (!resume_proxy(px)) { |
| appctx->ctx.cli.msg = "Failed to resume frontend, check logs for precise cause (port conflict?).\n"; |
| appctx->st0 = STAT_CLI_PRINT; |
| return 1; |
| } |
| return 1; |
| } |
| else { /* unknown "enable" parameter */ |
| appctx->ctx.cli.msg = "'enable' only supports 'agent', 'frontend', 'health', and 'server'.\n"; |
| appctx->st0 = STAT_CLI_PRINT; |
| return 1; |
| } |
| } |
| else if (strcmp(args[0], "disable") == 0) { |
| if (strcmp(args[1], "agent") == 0) { |
| struct server *sv; |
| |
| sv = expect_server_admin(s, si, args[2]); |
| if (!sv) |
| return 1; |
| |
| sv->agent.state &= ~CHK_ST_ENABLED; |
| return 1; |
| } |
| else if (strcmp(args[1], "health") == 0) { |
| struct server *sv; |
| |
| sv = expect_server_admin(s, si, args[2]); |
| if (!sv) |
| return 1; |
| |
| sv->check.state &= ~CHK_ST_ENABLED; |
| return 1; |
| } |
| else if (strcmp(args[1], "server") == 0) { |
| struct server *sv; |
| |
| sv = expect_server_admin(s, si, args[2]); |
| if (!sv) |
| return 1; |
| |
| srv_adm_set_maint(sv); |
| return 1; |
| } |
| else if (strcmp(args[1], "frontend") == 0) { |
| struct proxy *px; |
| |
| px = expect_frontend_admin(s, si, args[2]); |
| if (!px) |
| return 1; |
| |
| if (px->state == PR_STSTOPPED) { |
| appctx->ctx.cli.msg = "Frontend was previously shut down, cannot disable.\n"; |
| appctx->st0 = STAT_CLI_PRINT; |
| return 1; |
| } |
| |
| if (px->state == PR_STPAUSED) { |
| appctx->ctx.cli.msg = "Frontend is already disabled.\n"; |
| appctx->st0 = STAT_CLI_PRINT; |
| return 1; |
| } |
| |
| if (!pause_proxy(px)) { |
| appctx->ctx.cli.msg = "Failed to pause frontend, check logs for precise cause.\n"; |
| appctx->st0 = STAT_CLI_PRINT; |
| return 1; |
| } |
| return 1; |
| } |
| else { /* unknown "disable" parameter */ |
| appctx->ctx.cli.msg = "'disable' only supports 'agent', 'frontend', 'health', and 'server'.\n"; |
| appctx->st0 = STAT_CLI_PRINT; |
| return 1; |
| } |
| } |
| else if (strcmp(args[0], "shutdown") == 0) { |
| if (strcmp(args[1], "frontend") == 0) { |
| struct proxy *px; |
| |
| px = expect_frontend_admin(s, si, args[2]); |
| if (!px) |
| return 1; |
| |
| if (px->state == PR_STSTOPPED) { |
| appctx->ctx.cli.msg = "Frontend was already shut down.\n"; |
| appctx->st0 = STAT_CLI_PRINT; |
| return 1; |
| } |
| |
| Warning("Proxy %s stopped (FE: %lld conns, BE: %lld conns).\n", |
| px->id, px->fe_counters.cum_conn, px->be_counters.cum_conn); |
| send_log(px, LOG_WARNING, "Proxy %s stopped (FE: %lld conns, BE: %lld conns).\n", |
| px->id, px->fe_counters.cum_conn, px->be_counters.cum_conn); |
| stop_proxy(px); |
| return 1; |
| } |
| else if (strcmp(args[1], "session") == 0) { |
| struct stream *sess, *ptr; |
| |
| if (strm_li(s)->bind_conf->level < ACCESS_LVL_ADMIN) { |
| appctx->ctx.cli.msg = stats_permission_denied_msg; |
| appctx->st0 = STAT_CLI_PRINT; |
| return 1; |
| } |
| |
| if (!*args[2]) { |
| appctx->ctx.cli.msg = "Session pointer expected (use 'show sess').\n"; |
| appctx->st0 = STAT_CLI_PRINT; |
| return 1; |
| } |
| |
| ptr = (void *)strtoul(args[2], NULL, 0); |
| |
| /* first, look for the requested stream in the stream table */ |
| list_for_each_entry(sess, &streams, list) { |
| if (sess == ptr) |
| break; |
| } |
| |
| /* do we have the stream ? */ |
| if (sess != ptr) { |
| appctx->ctx.cli.msg = "No such session (use 'show sess').\n"; |
| appctx->st0 = STAT_CLI_PRINT; |
| return 1; |
| } |
| |
| stream_shutdown(sess, SF_ERR_KILLED); |
| return 1; |
| } |
| else if (strcmp(args[1], "sessions") == 0) { |
| if (strcmp(args[2], "server") == 0) { |
| struct server *sv; |
| struct stream *sess, *sess_bck; |
| |
| sv = expect_server_admin(s, si, args[3]); |
| if (!sv) |
| return 1; |
| |
| /* kill all the stream that are on this server */ |
| list_for_each_entry_safe(sess, sess_bck, &sv->actconns, by_srv) |
| if (sess->srv_conn == sv) |
| stream_shutdown(sess, SF_ERR_KILLED); |
| |
| return 1; |
| } |
| else { |
| appctx->ctx.cli.msg = "'shutdown sessions' only supports 'server'.\n"; |
| appctx->st0 = STAT_CLI_PRINT; |
| return 1; |
| } |
| } |
| else { /* unknown "disable" parameter */ |
| appctx->ctx.cli.msg = "'shutdown' only supports 'frontend', 'session' and 'sessions'.\n"; |
| appctx->st0 = STAT_CLI_PRINT; |
| return 1; |
| } |
| } |
| else { /* not "show" nor "clear" nor "get" nor "set" nor "enable" nor "disable" */ |
| return 0; |
| } |
| return 1; |
| } |
| |
| /* This I/O handler runs as an applet embedded in a stream interface. It is |
| * used to processes I/O from/to the stats unix socket. The system relies on a |
| * state machine handling requests and various responses. We read a request, |
| * then we process it and send the response, and we possibly display a prompt. |
| * Then we can read again. The state is stored in appctx->st0 and is one of the |
| * STAT_CLI_* constants. appctx->st1 is used to indicate whether prompt is enabled |
| * or not. |
| */ |
| static void cli_io_handler(struct appctx *appctx) |
| { |
| struct stream_interface *si = appctx->owner; |
| struct channel *req = si_oc(si); |
| struct channel *res = si_ic(si); |
| int reql; |
| int len; |
| |
| if (unlikely(si->state == SI_ST_DIS || si->state == SI_ST_CLO)) |
| goto out; |
| |
| while (1) { |
| if (appctx->st0 == STAT_CLI_INIT) { |
| /* Stats output not initialized yet */ |
| memset(&appctx->ctx.stats, 0, sizeof(appctx->ctx.stats)); |
| appctx->st0 = STAT_CLI_GETREQ; |
| } |
| else if (appctx->st0 == STAT_CLI_END) { |
| /* Let's close for real now. We just close the request |
| * side, the conditions below will complete if needed. |
| */ |
| si_shutw(si); |
| break; |
| } |
| else if (appctx->st0 == STAT_CLI_GETREQ) { |
| /* ensure we have some output room left in the event we |
| * would want to return some info right after parsing. |
| */ |
| if (buffer_almost_full(si_ib(si))) { |
| si_applet_cant_put(si); |
| break; |
| } |
| |
| reql = bo_getline(si_oc(si), trash.str, trash.size); |
| if (reql <= 0) { /* closed or EOL not found */ |
| if (reql == 0) |
| break; |
| appctx->st0 = STAT_CLI_END; |
| continue; |
| } |
| |
| /* seek for a possible unescaped semi-colon. If we find |
| * one, we replace it with an LF and skip only this part. |
| */ |
| for (len = 0; len < reql; len++) { |
| if (trash.str[len] == '\\') { |
| len++; |
| continue; |
| } |
| if (trash.str[len] == ';') { |
| trash.str[len] = '\n'; |
| reql = len + 1; |
| break; |
| } |
| } |
| |
| /* now it is time to check that we have a full line, |
| * remove the trailing \n and possibly \r, then cut the |
| * line. |
| */ |
| len = reql - 1; |
| if (trash.str[len] != '\n') { |
| appctx->st0 = STAT_CLI_END; |
| continue; |
| } |
| |
| if (len && trash.str[len-1] == '\r') |
| len--; |
| |
| trash.str[len] = '\0'; |
| |
| appctx->st0 = STAT_CLI_PROMPT; |
| if (len) { |
| if (strcmp(trash.str, "quit") == 0) { |
| appctx->st0 = STAT_CLI_END; |
| continue; |
| } |
| else if (strcmp(trash.str, "prompt") == 0) |
| appctx->st1 = !appctx->st1; |
| else if (strcmp(trash.str, "help") == 0 || |
| !stats_sock_parse_request(si, trash.str)) { |
| cli_gen_usage_msg(); |
| if (dynamic_usage_msg) |
| appctx->ctx.cli.msg = dynamic_usage_msg; |
| else |
| appctx->ctx.cli.msg = stats_sock_usage_msg; |
| appctx->st0 = STAT_CLI_PRINT; |
| } |
| /* NB: stats_sock_parse_request() may have put |
| * another STAT_CLI_O_* into appctx->st0. |
| */ |
| } |
| else if (!appctx->st1) { |
| /* if prompt is disabled, print help on empty lines, |
| * so that the user at least knows how to enable |
| * prompt and find help. |
| */ |
| cli_gen_usage_msg(); |
| if (dynamic_usage_msg) |
| appctx->ctx.cli.msg = dynamic_usage_msg; |
| else |
| appctx->ctx.cli.msg = stats_sock_usage_msg; |
| appctx->st0 = STAT_CLI_PRINT; |
| } |
| |
| /* re-adjust req buffer */ |
| bo_skip(si_oc(si), reql); |
| req->flags |= CF_READ_DONTWAIT; /* we plan to read small requests */ |
| } |
| else { /* output functions */ |
| switch (appctx->st0) { |
| case STAT_CLI_PROMPT: |
| break; |
| case STAT_CLI_PRINT: |
| if (bi_putstr(si_ic(si), appctx->ctx.cli.msg) != -1) |
| appctx->st0 = STAT_CLI_PROMPT; |
| else |
| si_applet_cant_put(si); |
| break; |
| case STAT_CLI_PRINT_FREE: |
| if (bi_putstr(si_ic(si), appctx->ctx.cli.err) != -1) { |
| free(appctx->ctx.cli.err); |
| appctx->st0 = STAT_CLI_PROMPT; |
| } |
| else |
| si_applet_cant_put(si); |
| break; |
| case STAT_CLI_O_ENV: /* environment dump */ |
| if (stats_dump_env_to_buffer(si)) |
| appctx->st0 = STAT_CLI_PROMPT; |
| break; |
| case STAT_CLI_O_CUSTOM: /* use custom pointer */ |
| if (appctx->io_handler) |
| if (appctx->io_handler(appctx)) { |
| appctx->st0 = STAT_CLI_PROMPT; |
| if (appctx->io_release) { |
| appctx->io_release(appctx); |
| appctx->io_release = NULL; |
| } |
| } |
| break; |
| default: /* abnormal state */ |
| si->flags |= SI_FL_ERR; |
| break; |
| } |
| |
| /* The post-command prompt is either LF alone or LF + '> ' in interactive mode */ |
| if (appctx->st0 == STAT_CLI_PROMPT) { |
| if (bi_putstr(si_ic(si), appctx->st1 ? "\n> " : "\n") != -1) |
| appctx->st0 = STAT_CLI_GETREQ; |
| else |
| si_applet_cant_put(si); |
| } |
| |
| /* If the output functions are still there, it means they require more room. */ |
| if (appctx->st0 >= STAT_CLI_OUTPUT) |
| break; |
| |
| /* Now we close the output if one of the writers did so, |
| * or if we're not in interactive mode and the request |
| * buffer is empty. This still allows pipelined requests |
| * to be sent in non-interactive mode. |
| */ |
| if ((res->flags & (CF_SHUTW|CF_SHUTW_NOW)) || (!appctx->st1 && !req->buf->o)) { |
| appctx->st0 = STAT_CLI_END; |
| continue; |
| } |
| |
| /* switch state back to GETREQ to read next requests */ |
| appctx->st0 = STAT_CLI_GETREQ; |
| } |
| } |
| |
| if ((res->flags & CF_SHUTR) && (si->state == SI_ST_EST)) { |
| DPRINTF(stderr, "%s@%d: si to buf closed. req=%08x, res=%08x, st=%d\n", |
| __FUNCTION__, __LINE__, req->flags, res->flags, si->state); |
| /* Other side has closed, let's abort if we have no more processing to do |
| * and nothing more to consume. This is comparable to a broken pipe, so |
| * we forward the close to the request side so that it flows upstream to |
| * the client. |
| */ |
| si_shutw(si); |
| } |
| |
| if ((req->flags & CF_SHUTW) && (si->state == SI_ST_EST) && (appctx->st0 < STAT_CLI_OUTPUT)) { |
| DPRINTF(stderr, "%s@%d: buf to si closed. req=%08x, res=%08x, st=%d\n", |
| __FUNCTION__, __LINE__, req->flags, res->flags, si->state); |
| /* We have no more processing to do, and nothing more to send, and |
| * the client side has closed. So we'll forward this state downstream |
| * on the response buffer. |
| */ |
| si_shutr(si); |
| res->flags |= CF_READ_NULL; |
| } |
| |
| out: |
| DPRINTF(stderr, "%s@%d: st=%d, rqf=%x, rpf=%x, rqh=%d, rqs=%d, rh=%d, rs=%d\n", |
| __FUNCTION__, __LINE__, |
| si->state, req->flags, res->flags, req->buf->i, req->buf->o, res->buf->i, res->buf->o); |
| } |
| |
| /* This is called when the stream interface is closed. For instance, upon an |
| * external abort, we won't call the i/o handler anymore so we may need to |
| * remove back references to the stream currently being dumped. |
| */ |
| static void cli_release_handler(struct appctx *appctx) |
| { |
| if (appctx->io_release) { |
| appctx->io_release(appctx); |
| appctx->io_release = NULL; |
| } |
| else if (appctx->st0 == STAT_CLI_PRINT_FREE) { |
| free(appctx->ctx.cli.err); |
| appctx->ctx.cli.err = NULL; |
| } |
| } |
| |
| /* This function dumps all environmnent variables to the buffer. It returns 0 |
| * if the output buffer is full and it needs to be called again, otherwise |
| * non-zero. Dumps only one entry if st2 == STAT_ST_END. |
| */ |
| static int stats_dump_env_to_buffer(struct stream_interface *si) |
| { |
| struct appctx *appctx = __objt_appctx(si->end); |
| |
| if (unlikely(si_ic(si)->flags & (CF_WRITE_ERROR|CF_SHUTW))) |
| return 1; |
| |
| chunk_reset(&trash); |
| |
| /* we have two inner loops here, one for the proxy, the other one for |
| * the buffer. |
| */ |
| while (*appctx->ctx.env.var) { |
| chunk_printf(&trash, "%s\n", *appctx->ctx.env.var); |
| |
| if (bi_putchk(si_ic(si), &trash) == -1) { |
| si_applet_cant_put(si); |
| return 0; |
| } |
| if (appctx->st2 == STAT_ST_END) |
| break; |
| appctx->ctx.env.var++; |
| } |
| |
| /* dump complete */ |
| return 1; |
| } |
| |
| /* parse the "level" argument on the bind lines */ |
| static int bind_parse_level(char **args, int cur_arg, struct proxy *px, struct bind_conf *conf, char **err) |
| { |
| if (!*args[cur_arg + 1]) { |
| memprintf(err, "'%s' : missing level", args[cur_arg]); |
| return ERR_ALERT | ERR_FATAL; |
| } |
| |
| if (!strcmp(args[cur_arg+1], "user")) |
| conf->level = ACCESS_LVL_USER; |
| else if (!strcmp(args[cur_arg+1], "operator")) |
| conf->level = ACCESS_LVL_OPER; |
| else if (!strcmp(args[cur_arg+1], "admin")) |
| conf->level = ACCESS_LVL_ADMIN; |
| else { |
| memprintf(err, "'%s' only supports 'user', 'operator', and 'admin' (got '%s')", |
| args[cur_arg], args[cur_arg+1]); |
| return ERR_ALERT | ERR_FATAL; |
| } |
| |
| return 0; |
| } |
| |
| static struct applet cli_applet = { |
| .obj_type = OBJ_TYPE_APPLET, |
| .name = "<CLI>", /* used for logging */ |
| .fct = cli_io_handler, |
| .release = cli_release_handler, |
| }; |
| |
| static struct cfg_kw_list cfg_kws = {ILH, { |
| { CFG_GLOBAL, "stats", stats_parse_global }, |
| { 0, NULL, NULL }, |
| }}; |
| |
| static struct bind_kw_list bind_kws = { "STAT", { }, { |
| { "level", bind_parse_level, 1 }, /* set the unix socket admin level */ |
| { NULL, NULL, 0 }, |
| }}; |
| |
| __attribute__((constructor)) |
| static void __dumpstats_module_init(void) |
| { |
| cfg_register_keywords(&cfg_kws); |
| bind_register_keywords(&bind_kws); |
| } |
| |
| /* |
| * Local variables: |
| * c-indent-level: 8 |
| * c-basic-offset: 8 |
| * End: |
| */ |