| /* |
| * Functions dedicated to statistics output |
| * |
| * Copyright 2000-2009 Willy Tarreau <w@1wt.eu> |
| * |
| * This program is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU General Public License |
| * as published by the Free Software Foundation; either version |
| * 2 of the License, or (at your option) any later version. |
| * |
| */ |
| |
| #include <ctype.h> |
| #include <errno.h> |
| #include <fcntl.h> |
| #include <stdio.h> |
| #include <stdlib.h> |
| #include <string.h> |
| #include <pwd.h> |
| #include <grp.h> |
| |
| #include <sys/socket.h> |
| #include <sys/stat.h> |
| #include <sys/types.h> |
| |
| #include <common/cfgparse.h> |
| #include <common/compat.h> |
| #include <common/config.h> |
| #include <common/debug.h> |
| #include <common/memory.h> |
| #include <common/mini-clist.h> |
| #include <common/standard.h> |
| #include <common/ticks.h> |
| #include <common/time.h> |
| #include <common/uri_auth.h> |
| #include <common/version.h> |
| |
| #include <types/global.h> |
| |
| #include <proto/backend.h> |
| #include <proto/buffers.h> |
| #include <proto/dumpstats.h> |
| #include <proto/fd.h> |
| #include <proto/freq_ctr.h> |
| #include <proto/pipe.h> |
| #include <proto/proto_uxst.h> |
| #include <proto/session.h> |
| #include <proto/server.h> |
| #include <proto/stream_interface.h> |
| |
| /* 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 may write an |
| * error message into ther <err> buffer, for at most <errlen> bytes, trailing |
| * zero included. 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, char *err, int errlen) |
| { |
| args++; |
| if (!strcmp(args[0], "socket")) { |
| struct sockaddr_un su; |
| int cur_arg; |
| |
| if (*args[1] == 0) { |
| snprintf(err, errlen, "'stats socket' in global section expects a path to a UNIX socket"); |
| return -1; |
| } |
| |
| if (global.stats_sock.state != LI_NEW) { |
| snprintf(err, errlen, "'stats socket' already specified in global section"); |
| return -1; |
| } |
| |
| su.sun_family = AF_UNIX; |
| strncpy(su.sun_path, args[1], sizeof(su.sun_path)); |
| su.sun_path[sizeof(su.sun_path) - 1] = 0; |
| memcpy(&global.stats_sock.addr, &su, sizeof(su)); // guaranteed to fit |
| |
| global.stats_sock.state = LI_INIT; |
| global.stats_sock.options = LI_O_NONE; |
| global.stats_sock.accept = uxst_event_accept; |
| global.stats_sock.handler = uxst_process_session; |
| global.stats_sock.analysers = AN_REQ_UNIX_STATS; |
| global.stats_sock.private = NULL; |
| |
| cur_arg = 2; |
| while (*args[cur_arg]) { |
| if (!strcmp(args[cur_arg], "uid")) { |
| global.stats_sock.perm.ux.uid = atol(args[cur_arg + 1]); |
| cur_arg += 2; |
| } |
| else if (!strcmp(args[cur_arg], "gid")) { |
| global.stats_sock.perm.ux.gid = atol(args[cur_arg + 1]); |
| cur_arg += 2; |
| } |
| else if (!strcmp(args[cur_arg], "mode")) { |
| global.stats_sock.perm.ux.mode = strtol(args[cur_arg + 1], NULL, 8); |
| cur_arg += 2; |
| } |
| else if (!strcmp(args[cur_arg], "user")) { |
| struct passwd *user; |
| user = getpwnam(args[cur_arg + 1]); |
| if (!user) { |
| snprintf(err, errlen, "unknown user '%s' in 'global' section ('stats user')", |
| args[cur_arg + 1]); |
| return -1; |
| } |
| global.stats_sock.perm.ux.uid = user->pw_uid; |
| cur_arg += 2; |
| } |
| else if (!strcmp(args[cur_arg], "group")) { |
| struct group *group; |
| group = getgrnam(args[cur_arg + 1]); |
| if (!group) { |
| snprintf(err, errlen, "unknown group '%s' in 'global' section ('stats group')", |
| args[cur_arg + 1]); |
| return -1; |
| } |
| global.stats_sock.perm.ux.gid = group->gr_gid; |
| cur_arg += 2; |
| } |
| else { |
| snprintf(err, errlen, "'stats socket' only supports 'user', 'uid', 'group', 'gid', and 'mode'"); |
| return -1; |
| } |
| } |
| |
| uxst_add_listener(&global.stats_sock); |
| global.maxsock++; |
| } |
| else if (!strcmp(args[0], "timeout")) { |
| unsigned timeout; |
| const char *res = parse_time_err(args[1], &timeout, TIME_UNIT_MS); |
| |
| if (res) { |
| snprintf(err, errlen, "unexpected character '%c' in 'stats timeout' in 'global' section", *res); |
| return -1; |
| } |
| |
| if (!timeout) { |
| snprintf(err, errlen, "a positive value is expected for 'stats timeout' in 'global section'"); |
| return -1; |
| } |
| global.stats_timeout = MS_TO_TICKS(timeout); |
| } |
| else if (!strcmp(args[0], "maxconn")) { |
| int maxconn = atol(args[1]); |
| |
| if (maxconn <= 0) { |
| snprintf(err, errlen, "a positive value is expected for 'stats maxconn' in 'global section'"); |
| return -1; |
| } |
| global.maxsock -= global.stats_sock.maxconn; |
| global.stats_sock.maxconn = maxconn; |
| global.maxsock += global.stats_sock.maxconn; |
| } |
| else { |
| snprintf(err, errlen, "'stats' only supports 'socket', 'maxconn' and 'timeout' in 'global' section"); |
| return -1; |
| } |
| return 0; |
| } |
| |
| int print_csv_header(struct chunk *msg, int size) |
| { |
| return chunk_printf(msg, size, |
| "# pxname,svname," |
| "qcur,qmax," |
| "scur,smax,slim,stot," |
| "bin,bout," |
| "dreq,dresp," |
| "ereq,econ,eresp," |
| "wretr,wredis," |
| "status,weight,act,bck," |
| "chkfail,chkdown,lastchg,downtime,qlimit," |
| "pid,iid,sid,throttle,lbtot,tracked,type,rate," |
| "\n"); |
| } |
| |
| /* |
| * Produces statistics data for the session <s>. Expects to be called with |
| * client socket shut down on input. It *may* make use of informations from |
| * <uri>. s->data_ctx must have been zeroed first, and the flags properly set. |
| * It returns 0 if it had to stop writing data and an I/O is needed, 1 if the |
| * dump is finished and the session must be closed, or -1 in case of any error. |
| * It automatically clears the HIJACK bit from the response buffer. |
| */ |
| int stats_dump_raw(struct session *s, struct buffer *rep, struct uri_auth *uri) |
| { |
| struct proxy *px; |
| struct chunk msg; |
| unsigned int up; |
| |
| msg.len = 0; |
| msg.str = trash; |
| |
| switch (s->data_state) { |
| case DATA_ST_INIT: |
| /* the function had not been called yet, let's prepare the |
| * buffer for a response. |
| */ |
| stream_int_retnclose(rep->cons, &msg); |
| s->data_state = DATA_ST_HEAD; |
| /* fall through */ |
| |
| case DATA_ST_HEAD: |
| if (s->data_ctx.stats.flags & STAT_SHOW_STAT) { |
| print_csv_header(&msg, sizeof(trash)); |
| if (buffer_write_chunk(rep, &msg) >= 0) |
| return 0; |
| } |
| |
| s->data_state = DATA_ST_INFO; |
| /* fall through */ |
| |
| case DATA_ST_INFO: |
| up = (now.tv_sec - start_date.tv_sec); |
| if (s->data_ctx.stats.flags & STAT_SHOW_INFO) { |
| chunk_printf(&msg, sizeof(trash), |
| "Name: " PRODUCT_NAME "\n" |
| "Version: " HAPROXY_VERSION "\n" |
| "Release_date: " HAPROXY_DATE "\n" |
| "Nbproc: %d\n" |
| "Process_num: %d\n" |
| "Pid: %d\n" |
| "Uptime: %dd %dh%02dm%02ds\n" |
| "Uptime_sec: %d\n" |
| "Memmax_MB: %d\n" |
| "Ulimit-n: %d\n" |
| "Maxsock: %d\n" |
| "Maxconn: %d\n" |
| "Maxpipes: %d\n" |
| "CurrConns: %d\n" |
| "PipesUsed: %d\n" |
| "PipesFree: %d\n" |
| "", |
| global.nbproc, |
| relative_pid, |
| pid, |
| up / 86400, (up % 86400) / 3600, (up % 3600) / 60, (up % 60), |
| up, |
| global.rlimit_memmax, |
| global.rlimit_nofile, |
| global.maxsock, global.maxconn, global.maxpipes, |
| actconn, pipes_used, pipes_free |
| ); |
| if (buffer_write_chunk(rep, &msg) >= 0) |
| return 0; |
| } |
| |
| s->data_ctx.stats.px = proxy; |
| s->data_ctx.stats.px_st = DATA_ST_PX_INIT; |
| |
| s->data_ctx.stats.sv = NULL; |
| s->data_ctx.stats.sv_st = 0; |
| |
| s->data_state = DATA_ST_LIST; |
| /* fall through */ |
| |
| case DATA_ST_LIST: |
| /* dump proxies */ |
| if (s->data_ctx.stats.flags & STAT_SHOW_STAT) { |
| while (s->data_ctx.stats.px) { |
| px = s->data_ctx.stats.px; |
| /* skip the disabled proxies and non-networked ones */ |
| if (px->state != PR_STSTOPPED && |
| (px->cap & (PR_CAP_FE | PR_CAP_BE))) |
| if (stats_dump_proxy(s, px, NULL) == 0) |
| return 0; |
| |
| s->data_ctx.stats.px = px->next; |
| s->data_ctx.stats.px_st = DATA_ST_PX_INIT; |
| } |
| /* here, we just have reached the last proxy */ |
| } |
| |
| s->data_state = DATA_ST_END; |
| /* fall through */ |
| |
| case DATA_ST_END: |
| s->data_state = DATA_ST_FIN; |
| /* fall through */ |
| |
| case DATA_ST_FIN: |
| buffer_stop_hijack(rep); |
| return 1; |
| |
| default: |
| /* unknown state ! */ |
| buffer_stop_hijack(rep); |
| return -1; |
| } |
| } |
| |
| |
| /* This function is called to send output to the response buffer. It simply |
| * calls stats_dump_raw(), and releases the buffer's hijack bit when the dump |
| * is finished. |
| */ |
| void stats_dump_raw_to_buffer(struct session *s, struct buffer *rep) |
| { |
| if (s->ana_state != STATS_ST_REP) |
| return; |
| |
| if (stats_dump_raw(s, rep, NULL) != 0) |
| s->ana_state = STATS_ST_CLOSE; |
| return; |
| } |
| |
| |
| /* |
| * Produces statistics data for the session <s>. Expects to be called with |
| * client socket shut down on input. It stops by itself by unsetting the |
| * BF_HIJACK flag from the buffer, which it uses to keep on being called |
| * when there is free space in the buffer, of simply by letting an empty buffer |
| * upon return.s->data_ctx must have been zeroed before the first call, and the |
| * flags set. It returns 0 if it had to stop writing data and an I/O is needed, |
| * 1 if the dump is finished and the session must be closed, or -1 in case of |
| * any error. |
| */ |
| int stats_dump_http(struct session *s, struct buffer *rep, struct uri_auth *uri) |
| { |
| struct proxy *px; |
| struct chunk msg; |
| unsigned int up; |
| |
| msg.len = 0; |
| msg.str = trash; |
| |
| switch (s->data_state) { |
| case DATA_ST_INIT: |
| chunk_printf(&msg, sizeof(trash), |
| "HTTP/1.0 200 OK\r\n" |
| "Cache-Control: no-cache\r\n" |
| "Connection: close\r\n" |
| "Content-Type: %s\r\n", |
| (s->data_ctx.stats.flags & STAT_FMT_CSV) ? "text/plain" : "text/html"); |
| |
| if (uri->refresh > 0 && !(s->data_ctx.stats.flags & STAT_NO_REFRESH)) |
| chunk_printf(&msg, sizeof(trash), "Refresh: %d\r\n", |
| uri->refresh); |
| |
| chunk_printf(&msg, sizeof(trash), "\r\n"); |
| |
| s->txn.status = 200; |
| stream_int_retnclose(rep->cons, &msg); // send the start of the response. |
| msg.len = 0; |
| |
| if (!(s->flags & SN_ERR_MASK)) // this is not really an error but it is |
| s->flags |= SN_ERR_PRXCOND; // to mark that it comes from the proxy |
| if (!(s->flags & SN_FINST_MASK)) |
| s->flags |= SN_FINST_R; |
| |
| if (s->txn.meth == HTTP_METH_HEAD) { |
| /* that's all we return in case of HEAD request */ |
| s->data_state = DATA_ST_FIN; |
| buffer_stop_hijack(rep); |
| return 1; |
| } |
| |
| s->data_state = DATA_ST_HEAD; /* let's start producing data */ |
| /* fall through */ |
| |
| case DATA_ST_HEAD: |
| if (!(s->data_ctx.stats.flags & STAT_FMT_CSV)) { |
| /* WARNING! This must fit in the first buffer !!! */ |
| chunk_printf(&msg, sizeof(trash), |
| "<html><head><title>Statistics Report for " PRODUCT_NAME "</title>\n" |
| "<meta http-equiv=\"content-type\" content=\"text/html; charset=iso-8859-1\">\n" |
| "<style type=\"text/css\"><!--\n" |
| "body {" |
| " font-family: helvetica, arial;" |
| " font-size: 12px;" |
| " font-weight: normal;" |
| " color: black;" |
| " background: white;" |
| "}\n" |
| "th,td {" |
| " font-size: 0.8em;" |
| " align: center;" |
| "}\n" |
| "h1 {" |
| " font-size: xx-large;" |
| " margin-bottom: 0.5em;" |
| "}\n" |
| "h2 {" |
| " font-family: helvetica, arial;" |
| " font-size: x-large;" |
| " font-weight: bold;" |
| " font-style: italic;" |
| " color: #6020a0;" |
| " margin-top: 0em;" |
| " margin-bottom: 0em;" |
| "}\n" |
| "h3 {" |
| " font-family: helvetica, arial;" |
| " font-size: 16px;" |
| " font-weight: bold;" |
| " color: #b00040;" |
| " background: #e8e8d0;" |
| " margin-top: 0em;" |
| " margin-bottom: 0em;" |
| "}\n" |
| "li {" |
| " margin-top: 0.25em;" |
| " margin-right: 2em;" |
| "}\n" |
| ".hr {margin-top: 0.25em;" |
| " border-color: black;" |
| " border-bottom-style: solid;" |
| "}\n" |
| ".pxname {background: #b00040;color: #ffff40;font-weight: bold;}\n" |
| ".titre {background: #20D0D0;color: #000000;font-weight: bold;}\n" |
| ".total {background: #20D0D0;color: #ffff80;}\n" |
| ".frontend {background: #e8e8d0;}\n" |
| ".backend {background: #e8e8d0;}\n" |
| ".active0 {background: #ff9090;}\n" |
| ".active1 {background: #ffd020;}\n" |
| ".active2 {background: #ffffa0;}\n" |
| ".active3 {background: #c0ffc0;}\n" |
| ".active4 {background: #ffffa0;}\n" /* NOLB state shows same as going down */ |
| ".active5 {background: #a0e0a0;}\n" /* NOLB state shows darker than up */ |
| ".active6 {background: #e0e0e0;}\n" |
| ".backup0 {background: #ff9090;}\n" |
| ".backup1 {background: #ff80ff;}\n" |
| ".backup2 {background: #c060ff;}\n" |
| ".backup3 {background: #b0d0ff;}\n" |
| ".backup4 {background: #c060ff;}\n" /* NOLB state shows same as going down */ |
| ".backup5 {background: #90b0e0;}\n" /* NOLB state shows same as going down */ |
| ".backup6 {background: #e0e0e0;}\n" |
| "table.tbl { border-collapse: collapse; border-style: none;}\n" |
| "table.tbl td { border-width: 1px 1px 1px 1px; border-style: solid solid solid solid; padding: 2px 3px; border-color: gray;}\n" |
| "table.tbl th { border-width: 1px; border-style: solid solid solid solid; border-color: gray;}\n" |
| "table.tbl th.empty { border-style: none; empty-cells: hide;}\n" |
| "table.lgd { border-collapse: collapse; border-width: 1px; border-style: none none none solid; border-color: black;}\n" |
| "table.lgd td { border-width: 1px; border-style: solid solid solid solid; border-color: gray; padding: 2px;}\n" |
| "table.lgd td.noborder { border-style: none; padding: 2px; white-space: nowrap;}\n" |
| "-->\n" |
| "</style></head>\n"); |
| } else { |
| print_csv_header(&msg, sizeof(trash)); |
| } |
| if (buffer_write_chunk(rep, &msg) >= 0) |
| return 0; |
| |
| s->data_state = DATA_ST_INFO; |
| /* fall through */ |
| |
| case DATA_ST_INFO: |
| up = (now.tv_sec - start_date.tv_sec); |
| |
| /* WARNING! this has to fit the first packet too. |
| * We are around 3.5 kB, add adding entries will |
| * become tricky if we want to support 4kB buffers ! |
| */ |
| if (!(s->data_ctx.stats.flags & STAT_FMT_CSV)) { |
| chunk_printf(&msg, sizeof(trash), |
| "<body><h1><a href=\"" PRODUCT_URL "\" style=\"text-decoration: none;\">" |
| PRODUCT_NAME "%s</a></h1>\n" |
| "<h2>Statistics Report for pid %d</h2>\n" |
| "<hr width=\"100%%\" class=\"hr\">\n" |
| "<h3>> General process information</h3>\n" |
| "<table border=0 cols=4><tr><td align=\"left\" nowrap width=\"1%%\">\n" |
| "<p><b>pid = </b> %d (process #%d, nbproc = %d)<br>\n" |
| "<b>uptime = </b> %dd %dh%02dm%02ds<br>\n" |
| "<b>system limits :</b> memmax = %s%s ; ulimit-n = %d<br>\n" |
| "<b>maxsock = </b> %d ; <b>maxconn = </b> %d ; <b>maxpipes = </b> %d<br>\n" |
| "current conns = %d ; current pipes = %d/%d<br>\n" |
| "</td><td align=\"center\" nowrap>\n" |
| "<table class=\"lgd\"><tr>\n" |
| "<td class=\"active3\"> </td><td class=\"noborder\">active UP </td>" |
| "<td class=\"backup3\"> </td><td class=\"noborder\">backup UP </td>" |
| "</tr><tr>\n" |
| "<td class=\"active2\"></td><td class=\"noborder\">active UP, going down </td>" |
| "<td class=\"backup2\"></td><td class=\"noborder\">backup UP, going down </td>" |
| "</tr><tr>\n" |
| "<td class=\"active1\"></td><td class=\"noborder\">active DOWN, going up </td>" |
| "<td class=\"backup1\"></td><td class=\"noborder\">backup DOWN, going up </td>" |
| "</tr><tr>\n" |
| "<td class=\"active0\"></td><td class=\"noborder\">active or backup DOWN </td>" |
| "<td class=\"active6\"></td><td class=\"noborder\">not checked </td>" |
| "</tr></table>\n" |
| "Note: UP with load-balancing disabled is reported as \"NOLB\"." |
| "</td>" |
| "<td align=\"left\" valign=\"top\" nowrap width=\"1%%\">" |
| "<b>Display option:</b><ul style=\"margin-top: 0.25em;\">" |
| "", |
| (uri->flags&ST_HIDEVER)?"":(STATS_VERSION_STRING), |
| pid, pid, |
| relative_pid, global.nbproc, |
| up / 86400, (up % 86400) / 3600, |
| (up % 3600) / 60, (up % 60), |
| global.rlimit_memmax ? ultoa(global.rlimit_memmax) : "unlimited", |
| global.rlimit_memmax ? " MB" : "", |
| global.rlimit_nofile, |
| global.maxsock, global.maxconn, global.maxpipes, |
| actconn, pipes_used, pipes_used+pipes_free |
| ); |
| |
| if (s->data_ctx.stats.flags & STAT_HIDE_DOWN) |
| chunk_printf(&msg, sizeof(trash), |
| "<li><a href=\"%s%s%s\">Show all servers</a><br>\n", |
| uri->uri_prefix, |
| "", |
| (s->data_ctx.stats.flags & STAT_NO_REFRESH) ? ";norefresh" : ""); |
| else |
| chunk_printf(&msg, sizeof(trash), |
| "<li><a href=\"%s%s%s\">Hide 'DOWN' servers</a><br>\n", |
| uri->uri_prefix, |
| ";up", |
| (s->data_ctx.stats.flags & STAT_NO_REFRESH) ? ";norefresh" : ""); |
| |
| if (uri->refresh > 0) { |
| if (s->data_ctx.stats.flags & STAT_NO_REFRESH) |
| chunk_printf(&msg, sizeof(trash), |
| "<li><a href=\"%s%s%s\">Enable refresh</a><br>\n", |
| uri->uri_prefix, |
| (s->data_ctx.stats.flags & STAT_HIDE_DOWN) ? ";up" : "", |
| ""); |
| else |
| chunk_printf(&msg, sizeof(trash), |
| "<li><a href=\"%s%s%s\">Disable refresh</a><br>\n", |
| uri->uri_prefix, |
| (s->data_ctx.stats.flags & STAT_HIDE_DOWN) ? ";up" : "", |
| ";norefresh"); |
| } |
| |
| chunk_printf(&msg, sizeof(trash), |
| "<li><a href=\"%s%s%s\">Refresh now</a><br>\n", |
| uri->uri_prefix, |
| (s->data_ctx.stats.flags & STAT_HIDE_DOWN) ? ";up" : "", |
| (s->data_ctx.stats.flags & STAT_NO_REFRESH) ? ";norefresh" : ""); |
| |
| chunk_printf(&msg, sizeof(trash), |
| "<li><a href=\"%s;csv%s\">CSV export</a><br>\n", |
| uri->uri_prefix, |
| (uri->refresh > 0) ? ";norefresh" : ""); |
| |
| chunk_printf(&msg, sizeof(trash), |
| "</td>" |
| "<td align=\"left\" valign=\"top\" nowrap width=\"1%%\">" |
| "<b>External ressources:</b><ul style=\"margin-top: 0.25em;\">\n" |
| "<li><a href=\"" PRODUCT_URL "\">Primary site</a><br>\n" |
| "<li><a href=\"" PRODUCT_URL_UPD "\">Updates (v" PRODUCT_BRANCH ")</a><br>\n" |
| "<li><a href=\"" PRODUCT_URL_DOC "\">Online manual</a><br>\n" |
| "</ul>" |
| "</td>" |
| "</tr></table>\n" |
| "" |
| ); |
| |
| if (buffer_write_chunk(rep, &msg) >= 0) |
| return 0; |
| } |
| |
| s->data_ctx.stats.px = proxy; |
| s->data_ctx.stats.px_st = DATA_ST_PX_INIT; |
| s->data_state = DATA_ST_LIST; |
| /* fall through */ |
| |
| case DATA_ST_LIST: |
| /* dump proxies */ |
| while (s->data_ctx.stats.px) { |
| px = s->data_ctx.stats.px; |
| /* skip the disabled proxies and non-networked ones */ |
| if (px->state != PR_STSTOPPED && (px->cap & (PR_CAP_FE | PR_CAP_BE))) |
| if (stats_dump_proxy(s, px, uri) == 0) |
| return 0; |
| |
| s->data_ctx.stats.px = px->next; |
| s->data_ctx.stats.px_st = DATA_ST_PX_INIT; |
| } |
| /* here, we just have reached the last proxy */ |
| |
| s->data_state = DATA_ST_END; |
| /* fall through */ |
| |
| case DATA_ST_END: |
| if (!(s->data_ctx.stats.flags & STAT_FMT_CSV)) { |
| chunk_printf(&msg, sizeof(trash), "</body></html>\n"); |
| if (buffer_write_chunk(rep, &msg) >= 0) |
| return 0; |
| } |
| |
| s->data_state = DATA_ST_FIN; |
| /* fall through */ |
| |
| case DATA_ST_FIN: |
| buffer_stop_hijack(rep); |
| return 1; |
| |
| default: |
| /* unknown state ! */ |
| buffer_stop_hijack(rep); |
| return -1; |
| } |
| } |
| |
| |
| /* |
| * Dumps statistics for a proxy. |
| * Returns 0 if it had to stop dumping data because of lack of buffer space, |
| * ot non-zero if everything completed. |
| */ |
| int stats_dump_proxy(struct session *s, struct proxy *px, struct uri_auth *uri) |
| { |
| struct buffer *rep = s->rep; |
| struct server *sv, *svs; /* server and server-state, server-state=server or server->tracked */ |
| struct chunk msg; |
| |
| msg.len = 0; |
| msg.str = trash; |
| |
| switch (s->data_ctx.stats.px_st) { |
| case DATA_ST_PX_INIT: |
| /* we are on a new proxy */ |
| |
| if (uri && uri->scope) { |
| /* we have a limited scope, we have to check the proxy name */ |
| struct stat_scope *scope; |
| int len; |
| |
| len = strlen(px->id); |
| scope = uri->scope; |
| |
| while (scope) { |
| /* match exact proxy name */ |
| if (scope->px_len == len && !memcmp(px->id, scope->px_id, len)) |
| break; |
| |
| /* match '.' which means 'self' proxy */ |
| if (!strcmp(scope->px_id, ".") && px == s->be) |
| break; |
| scope = scope->next; |
| } |
| |
| /* proxy name not found : don't dump anything */ |
| if (scope == NULL) |
| return 1; |
| } |
| |
| if ((s->data_ctx.stats.flags & STAT_BOUND) && (s->data_ctx.stats.iid != -1) && |
| (px->uuid != s->data_ctx.stats.iid)) |
| return 1; |
| |
| s->data_ctx.stats.px_st = DATA_ST_PX_TH; |
| /* fall through */ |
| |
| case DATA_ST_PX_TH: |
| if (!(s->data_ctx.stats.flags & STAT_FMT_CSV)) { |
| /* print a new table */ |
| chunk_printf(&msg, sizeof(trash), |
| "<table cols=\"27\" class=\"tbl\" width=\"100%%\">\n" |
| "<tr align=\"center\" class=\"titre\">" |
| "<th colspan=2 class=\"pxname\">%s</th>" |
| "<th colspan=25 class=\"empty\"></th>" |
| "</tr>\n" |
| "<tr align=\"center\" class=\"titre\">" |
| "<th rowspan=2></th>" |
| "<th colspan=3>Queue</th><th colspan=6>Sessions</th>" |
| "<th colspan=2>Bytes</th><th colspan=2>Denied</th>" |
| "<th colspan=3>Errors</th><th colspan=2>Warnings</th>" |
| "<th colspan=8>Server</th>" |
| "</tr>\n" |
| "<tr align=\"center\" class=\"titre\">" |
| "<th>Cur</th><th>Max</th><th>Limit</th><th>Cur</th><th>Max</th>" |
| "<th>Limit</th><th>Rate</th><th>Total</th><th>LbTot</th><th>In</th><th>Out</th>" |
| "<th>Req</th><th>Resp</th><th>Req</th><th>Conn</th>" |
| "<th>Resp</th><th>Retr</th><th>Redis</th>" |
| "<th>Status</th><th>Wght</th><th>Act</th>" |
| "<th>Bck</th><th>Chk</th><th>Dwn</th><th>Dwntme</th>" |
| "<th>Thrtle</th>\n" |
| "</tr>", |
| px->id); |
| |
| if (buffer_write_chunk(rep, &msg) >= 0) |
| return 0; |
| } |
| |
| s->data_ctx.stats.px_st = DATA_ST_PX_FE; |
| /* fall through */ |
| |
| case DATA_ST_PX_FE: |
| /* print the frontend */ |
| if ((px->cap & PR_CAP_FE) && |
| (!(s->data_ctx.stats.flags & STAT_BOUND) || (s->data_ctx.stats.type & (1 << STATS_TYPE_FE)))) { |
| if (!(s->data_ctx.stats.flags & STAT_FMT_CSV)) { |
| chunk_printf(&msg, sizeof(trash), |
| /* name, queue */ |
| "<tr align=center class=\"frontend\"><td>Frontend</td><td colspan=3></td>" |
| /* sessions : current, max, limit, rate, total, lbtot */ |
| "<td align=right>%d</td><td align=right>%d</td>" |
| "<td align=right>%d</td><td align=right>%d</td>" |
| "<td align=right>%d</td><td align=right></td>" |
| /* bytes : in, out */ |
| "<td align=right>%lld</td><td align=right>%lld</td>" |
| /* denied: req, resp */ |
| "<td align=right>%d</td><td align=right>%d</td>" |
| /* errors : request, connect, response */ |
| "<td align=right>%d</td><td align=right></td><td align=right></td>" |
| /* warnings: retries, redispatches */ |
| "<td align=right></td><td align=right></td>" |
| /* server status : reflect frontend status */ |
| "<td align=center>%s</td>" |
| /* rest of server: nothing */ |
| "<td align=center colspan=7></td></tr>" |
| "", |
| px->feconn, px->feconn_max, px->maxconn, |
| read_freq_ctr(&px->fe_sess_per_sec), px->cum_feconn, |
| px->bytes_in, px->bytes_out, |
| px->denied_req, px->denied_resp, |
| px->failed_req, |
| px->state == PR_STRUN ? "OPEN" : |
| px->state == PR_STIDLE ? "FULL" : "STOP"); |
| } else { |
| chunk_printf(&msg, sizeof(trash), |
| /* pxid, name, queue cur, queue max, */ |
| "%s,FRONTEND,,," |
| /* sessions : current, max, limit, total */ |
| "%d,%d,%d,%d," |
| /* bytes : in, out */ |
| "%lld,%lld," |
| /* denied: req, resp */ |
| "%d,%d," |
| /* errors : request, connect, response */ |
| "%d,,," |
| /* warnings: retries, redispatches */ |
| ",," |
| /* server status : reflect frontend status */ |
| "%s," |
| /* rest of server: nothing */ |
| ",,,,,,,," |
| /* pid, iid, sid, throttle, lbtot, tracked, type */ |
| "%d,%d,0,,,,%d," |
| /* rate */ |
| "%u," |
| "\n", |
| px->id, |
| px->feconn, px->feconn_max, px->maxconn, px->cum_feconn, |
| px->bytes_in, px->bytes_out, |
| px->denied_req, px->denied_resp, |
| px->failed_req, |
| px->state == PR_STRUN ? "OPEN" : |
| px->state == PR_STIDLE ? "FULL" : "STOP", |
| relative_pid, px->uuid, STATS_TYPE_FE, |
| read_freq_ctr(&px->fe_sess_per_sec)); |
| } |
| |
| if (buffer_write_chunk(rep, &msg) >= 0) |
| return 0; |
| } |
| |
| s->data_ctx.stats.sv = px->srv; /* may be NULL */ |
| s->data_ctx.stats.px_st = DATA_ST_PX_SV; |
| /* fall through */ |
| |
| case DATA_ST_PX_SV: |
| /* stats.sv has been initialized above */ |
| for (; s->data_ctx.stats.sv != NULL; s->data_ctx.stats.sv = sv->next) { |
| |
| int sv_state; /* 0=DOWN, 1=going up, 2=going down, 3=UP, 4,5=NOLB, 6=unchecked */ |
| |
| sv = s->data_ctx.stats.sv; |
| |
| if (s->data_ctx.stats.flags & STAT_BOUND) { |
| if (!(s->data_ctx.stats.type & (1 << STATS_TYPE_SV))) |
| break; |
| |
| if (s->data_ctx.stats.sid != -1 && sv->puid != s->data_ctx.stats.sid) |
| continue; |
| } |
| |
| if (sv->tracked) |
| svs = sv->tracked; |
| else |
| svs = sv; |
| |
| /* FIXME: produce some small strings for "UP/DOWN x/y &#xxxx;" */ |
| if (!(svs->state & SRV_CHECKED)) |
| sv_state = 6; |
| else if (svs->state & SRV_RUNNING) { |
| if (svs->health == svs->rise + svs->fall - 1) |
| sv_state = 3; /* UP */ |
| else |
| sv_state = 2; /* going down */ |
| |
| if (svs->state & SRV_GOINGDOWN) |
| sv_state += 2; |
| } |
| else |
| if (svs->health) |
| sv_state = 1; /* going up */ |
| else |
| sv_state = 0; /* DOWN */ |
| |
| if ((sv_state == 0) && (s->data_ctx.stats.flags & STAT_HIDE_DOWN)) { |
| /* do not report servers which are DOWN */ |
| s->data_ctx.stats.sv = sv->next; |
| continue; |
| } |
| |
| if (!(s->data_ctx.stats.flags & STAT_FMT_CSV)) { |
| static char *srv_hlt_st[7] = { "DOWN", "DN %d/%d ↑", |
| "UP %d/%d ↓", "UP", |
| "NOLB %d/%d ↓", "NOLB", |
| "<i>no check</i>" }; |
| chunk_printf(&msg, sizeof(trash), |
| /* name */ |
| "<tr align=\"center\" class=\"%s%d\"><td>%s</td>" |
| /* queue : current, max, limit */ |
| "<td align=right>%d</td><td align=right>%d</td><td align=right>%s</td>" |
| /* sessions : current, max, limit, rate, total, lbtot */ |
| "<td align=right>%d</td><td align=right>%d</td>" |
| "<td align=right>%s</td><td align=right>%d</td>" |
| "<td align=right>%d</td><td align=right>%d</td>" |
| /* bytes : in, out */ |
| "<td align=right>%lld</td><td align=right>%lld</td>" |
| /* denied: req, resp */ |
| "<td align=right></td><td align=right>%d</td>" |
| /* errors : request, connect, response */ |
| "<td align=right></td><td align=right>%d</td><td align=right>%d</td>\n" |
| /* warnings: retries, redispatches */ |
| "<td align=right>%u</td><td align=right>%u</td>" |
| "", |
| (sv->state & SRV_BACKUP) ? "backup" : "active", |
| sv_state, sv->id, |
| sv->nbpend, sv->nbpend_max, LIM2A0(sv->maxqueue, "-"), |
| sv->cur_sess, sv->cur_sess_max, LIM2A1(sv->maxconn, "-"), |
| read_freq_ctr(&sv->sess_per_sec), |
| sv->cum_sess, sv->cum_lbconn, |
| sv->bytes_in, sv->bytes_out, |
| sv->failed_secu, |
| sv->failed_conns, sv->failed_resp, |
| sv->retries, sv->redispatches); |
| |
| /* status */ |
| chunk_printf(&msg, sizeof(trash), "<td nowrap>"); |
| |
| if (sv->state & SRV_CHECKED) |
| chunk_printf(&msg, sizeof(trash), "%s ", |
| human_time(now.tv_sec - sv->last_change, 1)); |
| |
| chunk_printf(&msg, sizeof(trash), |
| srv_hlt_st[sv_state], |
| (svs->state & SRV_RUNNING) ? (svs->health - svs->rise + 1) : (svs->health), |
| (svs->state & SRV_RUNNING) ? (svs->fall) : (svs->rise)); |
| |
| chunk_printf(&msg, sizeof(trash), |
| /* weight */ |
| "</td><td>%d</td>" |
| /* act, bck */ |
| "<td>%s</td><td>%s</td>" |
| "", |
| (sv->eweight * px->lbprm.wmult + px->lbprm.wdiv - 1) / px->lbprm.wdiv, |
| (sv->state & SRV_BACKUP) ? "-" : "Y", |
| (sv->state & SRV_BACKUP) ? "Y" : "-"); |
| |
| /* check failures: unique, fatal, down time */ |
| if (sv->state & SRV_CHECKED) |
| chunk_printf(&msg, sizeof(trash), |
| "<td align=right>%d</td><td align=right>%d</td>" |
| "<td nowrap align=right>%s</td>" |
| "", |
| svs->failed_checks, svs->down_trans, |
| human_time(srv_downtime(sv), 1)); |
| else if (sv != svs) |
| chunk_printf(&msg, sizeof(trash), |
| "<td nowrap colspan=3>via %s/%s</td>", svs->proxy->id, svs->id ); |
| else |
| chunk_printf(&msg, sizeof(trash), |
| "<td colspan=3></td>"); |
| |
| /* throttle */ |
| if ((sv->state & SRV_WARMINGUP) && |
| now.tv_sec < sv->last_change + sv->slowstart && |
| now.tv_sec >= sv->last_change) { |
| unsigned int ratio; |
| ratio = MAX(1, 100 * (now.tv_sec - sv->last_change) / sv->slowstart); |
| chunk_printf(&msg, sizeof(trash), |
| "<td>%d %%</td></tr>\n", ratio); |
| } else { |
| chunk_printf(&msg, sizeof(trash), |
| "<td>-</td></tr>\n"); |
| } |
| } else { |
| static char *srv_hlt_st[7] = { "DOWN,", "DOWN %d/%d,", |
| "UP %d/%d,", "UP,", |
| "NOLB %d/%d,", "NOLB,", |
| "no check," }; |
| chunk_printf(&msg, sizeof(trash), |
| /* pxid, name */ |
| "%s,%s," |
| /* queue : current, max */ |
| "%d,%d," |
| /* sessions : current, max, limit, total */ |
| "%d,%d,%s,%d," |
| /* bytes : in, out */ |
| "%lld,%lld," |
| /* denied: req, resp */ |
| ",%d," |
| /* errors : request, connect, response */ |
| ",%d,%d," |
| /* warnings: retries, redispatches */ |
| "%u,%u," |
| "", |
| px->id, sv->id, |
| sv->nbpend, sv->nbpend_max, |
| sv->cur_sess, sv->cur_sess_max, LIM2A0(sv->maxconn, ""), sv->cum_sess, |
| sv->bytes_in, sv->bytes_out, |
| sv->failed_secu, |
| sv->failed_conns, sv->failed_resp, |
| sv->retries, sv->redispatches); |
| |
| /* status */ |
| chunk_printf(&msg, sizeof(trash), |
| srv_hlt_st[sv_state], |
| (sv->state & SRV_RUNNING) ? (sv->health - sv->rise + 1) : (sv->health), |
| (sv->state & SRV_RUNNING) ? (sv->fall) : (sv->rise)); |
| |
| chunk_printf(&msg, sizeof(trash), |
| /* weight, active, backup */ |
| "%d,%d,%d," |
| "", |
| (sv->eweight * px->lbprm.wmult + px->lbprm.wdiv - 1) / px->lbprm.wdiv, |
| (sv->state & SRV_BACKUP) ? 0 : 1, |
| (sv->state & SRV_BACKUP) ? 1 : 0); |
| |
| /* check failures: unique, fatal; last change, total downtime */ |
| if (sv->state & SRV_CHECKED) |
| chunk_printf(&msg, sizeof(trash), |
| "%d,%d,%d,%d,", |
| sv->failed_checks, sv->down_trans, |
| now.tv_sec - sv->last_change, srv_downtime(sv)); |
| else |
| chunk_printf(&msg, sizeof(trash), |
| ",,,,"); |
| |
| /* queue limit, pid, iid, sid, */ |
| chunk_printf(&msg, sizeof(trash), |
| "%s," |
| "%d,%d,%d,", |
| LIM2A0(sv->maxqueue, ""), |
| relative_pid, px->uuid, sv->puid); |
| |
| /* throttle */ |
| if ((sv->state & SRV_WARMINGUP) && |
| now.tv_sec < sv->last_change + sv->slowstart && |
| now.tv_sec >= sv->last_change) { |
| unsigned int ratio; |
| ratio = MAX(1, 100 * (now.tv_sec - sv->last_change) / sv->slowstart); |
| chunk_printf(&msg, sizeof(trash), "%d", ratio); |
| } |
| |
| /* sessions: lbtot */ |
| chunk_printf(&msg, sizeof(trash), ",%d,", sv->cum_lbconn); |
| |
| /* tracked */ |
| if (sv->tracked) |
| chunk_printf(&msg, sizeof(trash), "%s/%s,", |
| sv->tracked->proxy->id, sv->tracked->id); |
| else |
| chunk_printf(&msg, sizeof(trash), ","); |
| |
| /* type */ |
| chunk_printf(&msg, sizeof(trash), "%d,", STATS_TYPE_SV); |
| |
| /* rate */ |
| chunk_printf(&msg, sizeof(trash), "%u,", read_freq_ctr(&sv->sess_per_sec)); |
| |
| /* finish with EOL */ |
| chunk_printf(&msg, sizeof(trash), "\n"); |
| } |
| if (buffer_write_chunk(rep, &msg) >= 0) |
| return 0; |
| } /* for sv */ |
| |
| s->data_ctx.stats.px_st = DATA_ST_PX_BE; |
| /* fall through */ |
| |
| case DATA_ST_PX_BE: |
| /* print the backend */ |
| if ((px->cap & PR_CAP_BE) && |
| (!(s->data_ctx.stats.flags & STAT_BOUND) || (s->data_ctx.stats.type & (1 << STATS_TYPE_BE)))) { |
| if (!(s->data_ctx.stats.flags & STAT_FMT_CSV)) { |
| chunk_printf(&msg, sizeof(trash), |
| /* name */ |
| "<tr align=center class=\"backend\"><td>Backend</td>" |
| /* queue : current, max */ |
| "<td align=right>%d</td><td align=right>%d</td><td></td>" |
| /* sessions : current, max, limit, rate, total, lbtot */ |
| "<td align=right>%d</td><td align=right>%d</td>" |
| "<td align=right>%d</td><td align=right>%d</td>" |
| "<td align=right>%d</td><td align=right>%d</td>" |
| /* bytes : in, out */ |
| "<td align=right>%lld</td><td align=right>%lld</td>" |
| /* denied: req, resp */ |
| "<td align=right>%d</td><td align=right>%d</td>" |
| /* errors : request, connect, response */ |
| "<td align=right></td><td align=right>%d</td><td align=right>%d</td>\n" |
| /* warnings: retries, redispatches */ |
| "<td align=right>%u</td><td align=right>%u</td>" |
| /* backend status: reflect backend status (up/down): we display UP |
| * if the backend has known working servers or if it has no server at |
| * all (eg: for stats). Then we display the total weight, number of |
| * active and backups. */ |
| "<td align=center nowrap>%s %s</td><td align=center>%d</td>" |
| "<td align=center>%d</td><td align=center>%d</td>", |
| px->nbpend /* or px->totpend ? */, px->nbpend_max, |
| px->beconn, px->beconn_max, px->fullconn, |
| read_freq_ctr(&px->be_sess_per_sec), |
| px->cum_beconn, px->cum_lbconn, |
| px->bytes_in, px->bytes_out, |
| px->denied_req, px->denied_resp, |
| px->failed_conns, px->failed_resp, |
| px->retries, px->redispatches, |
| human_time(now.tv_sec - px->last_change, 1), |
| (px->lbprm.tot_weight > 0 || !px->srv) ? "UP" : |
| "<font color=\"red\"><b>DOWN</b></font>", |
| (px->lbprm.tot_weight * px->lbprm.wmult + px->lbprm.wdiv - 1) / px->lbprm.wdiv, |
| px->srv_act, px->srv_bck); |
| |
| chunk_printf(&msg, sizeof(trash), |
| /* rest of backend: nothing, down transitions, total downtime, throttle */ |
| "<td align=center> </td><td align=\"right\">%d</td>" |
| "<td align=\"right\" nowrap>%s</td>" |
| "<td></td>" |
| "</tr>", |
| px->down_trans, |
| px->srv?human_time(be_downtime(px), 1):" "); |
| } else { |
| chunk_printf(&msg, sizeof(trash), |
| /* pxid, name */ |
| "%s,BACKEND," |
| /* queue : current, max */ |
| "%d,%d," |
| /* sessions : current, max, limit, total */ |
| "%d,%d,%d,%d," |
| /* bytes : in, out */ |
| "%lld,%lld," |
| /* denied: req, resp */ |
| "%d,%d," |
| /* errors : request, connect, response */ |
| ",%d,%d," |
| /* warnings: retries, redispatches */ |
| "%u,%u," |
| /* backend status: reflect backend status (up/down): we display UP |
| * if the backend has known working servers or if it has no server at |
| * all (eg: for stats). Then we display the total weight, number of |
| * active and backups. */ |
| "%s," |
| "%d,%d,%d," |
| /* rest of backend: nothing, down transitions, last change, total downtime */ |
| ",%d,%d,%d,," |
| /* pid, iid, sid, throttle, lbtot, tracked, type */ |
| "%d,%d,0,,%d,,%d," |
| /* rate */ |
| "%u," |
| "\n", |
| px->id, |
| px->nbpend /* or px->totpend ? */, px->nbpend_max, |
| px->beconn, px->beconn_max, px->fullconn, px->cum_beconn, |
| px->bytes_in, px->bytes_out, |
| px->denied_req, px->denied_resp, |
| px->failed_conns, px->failed_resp, |
| px->retries, px->redispatches, |
| (px->lbprm.tot_weight > 0 || !px->srv) ? "UP" : "DOWN", |
| (px->lbprm.tot_weight * px->lbprm.wmult + px->lbprm.wdiv - 1) / px->lbprm.wdiv, |
| px->srv_act, px->srv_bck, |
| px->down_trans, now.tv_sec - px->last_change, |
| px->srv?be_downtime(px):0, |
| relative_pid, px->uuid, |
| px->cum_lbconn, STATS_TYPE_BE, |
| read_freq_ctr(&px->be_sess_per_sec)); |
| } |
| if (buffer_write_chunk(rep, &msg) >= 0) |
| return 0; |
| } |
| |
| s->data_ctx.stats.px_st = DATA_ST_PX_END; |
| /* fall through */ |
| |
| case DATA_ST_PX_END: |
| if (!(s->data_ctx.stats.flags & STAT_FMT_CSV)) { |
| chunk_printf(&msg, sizeof(trash), "</table><p>\n"); |
| |
| if (buffer_write_chunk(rep, &msg) >= 0) |
| return 0; |
| } |
| |
| s->data_ctx.stats.px_st = DATA_ST_PX_FIN; |
| /* fall through */ |
| |
| case DATA_ST_PX_FIN: |
| return 1; |
| |
| default: |
| /* unknown state, we should put an abort() here ! */ |
| return 1; |
| } |
| } |
| |
| |
| /* This function is called to send output to the response buffer. |
| * It dumps the sessions states onto the output buffer <rep>. |
| * Expects to be called with client socket shut down on input. |
| * s->data_ctx must have been zeroed first, and the flags properly set. |
| * It automatically clears the HIJACK bit from the response buffer. |
| */ |
| void stats_dump_sess_to_buffer(struct session *s, struct buffer *rep) |
| { |
| struct chunk msg; |
| |
| if (unlikely(rep->flags & (BF_WRITE_ERROR|BF_SHUTW))) { |
| /* If we're forced to shut down, we might have to remove our |
| * reference to the last session being dumped. |
| */ |
| if (s->data_state == DATA_ST_LIST) { |
| if (!LIST_ISEMPTY(&s->data_ctx.sess.bref.users)) { |
| LIST_DEL(&s->data_ctx.sess.bref.users); |
| LIST_INIT(&s->data_ctx.sess.bref.users); |
| } |
| } |
| s->data_state = DATA_ST_FIN; |
| buffer_stop_hijack(rep); |
| s->ana_state = STATS_ST_CLOSE; |
| return; |
| } |
| |
| if (s->ana_state != STATS_ST_REP) |
| return; |
| |
| msg.len = 0; |
| msg.str = trash; |
| |
| switch (s->data_state) { |
| case DATA_ST_INIT: |
| /* the function had not been called yet, let's prepare the |
| * buffer for a response. We initialize the current session |
| * pointer to the first in the global list. When a target |
| * session is being destroyed, it is responsible for updating |
| * this pointer. We know we have reached the end when this |
| * pointer points back to the head of the sessions list. |
| */ |
| stream_int_retnclose(rep->cons, &msg); |
| LIST_INIT(&s->data_ctx.sess.bref.users); |
| s->data_ctx.sess.bref.ref = sessions.n; |
| s->data_state = DATA_ST_LIST; |
| /* fall through */ |
| |
| case DATA_ST_LIST: |
| /* first, let's detach the back-ref from a possible previous session */ |
| if (!LIST_ISEMPTY(&s->data_ctx.sess.bref.users)) { |
| LIST_DEL(&s->data_ctx.sess.bref.users); |
| LIST_INIT(&s->data_ctx.sess.bref.users); |
| } |
| |
| /* and start from where we stopped */ |
| while (s->data_ctx.sess.bref.ref != &sessions) { |
| char pn[INET6_ADDRSTRLEN + strlen(":65535")]; |
| struct session *curr_sess; |
| |
| curr_sess = LIST_ELEM(s->data_ctx.sess.bref.ref, struct session *, list); |
| |
| chunk_printf(&msg, sizeof(trash), |
| "%p: proto=%s", |
| curr_sess, |
| curr_sess->listener->proto->name); |
| |
| switch (curr_sess->listener->proto->sock_family) { |
| case AF_INET: |
| inet_ntop(AF_INET, |
| (const void *)&((struct sockaddr_in *)&curr_sess->cli_addr)->sin_addr, |
| pn, sizeof(pn)); |
| |
| chunk_printf(&msg, sizeof(trash), |
| " src=%s:%d fe=%s be=%s srv=%s", |
| pn, |
| ntohs(((struct sockaddr_in *)&curr_sess->cli_addr)->sin_port), |
| curr_sess->fe->id, |
| curr_sess->be->id, |
| curr_sess->srv ? curr_sess->srv->id : "<none>" |
| ); |
| break; |
| case AF_INET6: |
| inet_ntop(AF_INET6, |
| (const void *)&((struct sockaddr_in6 *)(&curr_sess->cli_addr))->sin6_addr, |
| pn, sizeof(pn)); |
| |
| chunk_printf(&msg, sizeof(trash), |
| " src=%s:%d fe=%s be=%s srv=%s", |
| pn, |
| ntohs(((struct sockaddr_in6 *)&curr_sess->cli_addr)->sin6_port), |
| curr_sess->fe->id, |
| curr_sess->be->id, |
| curr_sess->srv ? curr_sess->srv->id : "<none>" |
| ); |
| |
| break; |
| case AF_UNIX: |
| /* no more information to print right now */ |
| break; |
| } |
| |
| chunk_printf(&msg, sizeof(trash), |
| " si=(%d,%d) as=%d ts=%02x age=%s", |
| curr_sess->si[0].state, curr_sess->si[1].state, |
| curr_sess->ana_state, curr_sess->task->state, |
| human_time(now.tv_sec - curr_sess->logs.tv_accept.tv_sec, 1)); |
| |
| if (curr_sess->task->state & TASK_IN_RUNQUEUE) |
| chunk_printf(&msg, sizeof(trash), " run(nice=%d)\n", curr_sess->task->nice); |
| else |
| chunk_printf(&msg, sizeof(trash), |
| " exp=%s\n", |
| curr_sess->task->expire ? |
| human_time(TICKS_TO_MS(tick_remain(now_ms, curr_sess->task->expire)), |
| TICKS_TO_MS(1000)) |
| : "never"); |
| |
| if (buffer_write_chunk(rep, &msg) >= 0) { |
| /* let's try again later from this session. We add ourselves into |
| * this session's users so that it can remove us upon termination. |
| */ |
| LIST_ADDQ(&curr_sess->back_refs, &s->data_ctx.sess.bref.users); |
| return; |
| } |
| |
| s->data_ctx.sess.bref.ref = curr_sess->list.n; |
| } |
| s->data_state = DATA_ST_FIN; |
| /* fall through */ |
| |
| default: |
| s->data_state = DATA_ST_FIN; |
| buffer_stop_hijack(rep); |
| s->ana_state = STATS_ST_CLOSE; |
| return; |
| } |
| } |
| |
| /* print a line of error buffer (limited to 70 bytes) to <out>. The format is : |
| * <2 spaces> <offset=5 digits> <space or plus> <space> <70 chars max> <\n> |
| * which is 60 chars per line. Non-printable chars \t, \n, \r and \e are |
| * encoded in C format. Other non-printable chars are encoded "\xHH". Original |
| * lines are respected within the limit of 70 output chars. Lines that are |
| * continuation of a previous truncated line begin with "+" instead of " " |
| * after the offset. The new pointer is returned. |
| */ |
| static int dump_error_line(struct chunk *out, int size, |
| struct error_snapshot *err, int *line, int ptr) |
| { |
| int end; |
| unsigned char c; |
| |
| end = out->len + 80; |
| if (end > size) |
| return ptr; |
| |
| chunk_printf(out, size, " %05d%c ", ptr, (ptr == *line) ? ' ' : '+'); |
| |
| while (ptr < err->len) { |
| c = err->buf[ptr]; |
| if (isprint(c)) { |
| if (out->len > end - 2) |
| break; |
| out->str[out->len++] = c; |
| } else if (c == '\t' || c == '\n' || c == '\r' || c == '\e') { |
| if (out->len > end - 3) |
| break; |
| out->str[out->len++] = '\\'; |
| switch (c) { |
| case '\t': c = 't'; break; |
| case '\n': c = 'n'; break; |
| case '\r': c = 'r'; break; |
| case '\e': c = 'e'; break; |
| } |
| out->str[out->len++] = c; |
| } else { |
| if (out->len > end - 5) |
| break; |
| out->str[out->len++] = '\\'; |
| out->str[out->len++] = 'x'; |
| out->str[out->len++] = hextab[(c >> 4) & 0xF]; |
| out->str[out->len++] = hextab[c & 0xF]; |
| } |
| if (err->buf[ptr++] == '\n') { |
| /* we had a line break, let's return now */ |
| out->str[out->len++] = '\n'; |
| *line = ptr; |
| return ptr; |
| } |
| } |
| /* we have an incomplete line, we return it as-is */ |
| out->str[out->len++] = '\n'; |
| return ptr; |
| } |
| |
| /* This function is called to send output to the response buffer. |
| * It dumps the errors logged in proxies onto the output buffer <rep>. |
| * Expects to be called with client socket shut down on input. |
| * s->data_ctx must have been zeroed first, and the flags properly set. |
| * It automatically clears the HIJACK bit from the response buffer. |
| */ |
| void stats_dump_errors_to_buffer(struct session *s, struct buffer *rep) |
| { |
| extern const char *monthname[12]; |
| struct chunk msg; |
| |
| if (unlikely(rep->flags & (BF_WRITE_ERROR|BF_SHUTW))) { |
| s->data_state = DATA_ST_FIN; |
| buffer_stop_hijack(rep); |
| s->ana_state = STATS_ST_CLOSE; |
| return; |
| } |
| |
| if (s->ana_state != STATS_ST_REP) |
| return; |
| |
| msg.len = 0; |
| msg.str = trash; |
| |
| if (!s->data_ctx.errors.px) { |
| /* the function had not been called yet, let's prepare the |
| * buffer for a response. |
| */ |
| stream_int_retnclose(rep->cons, &msg); |
| s->data_ctx.errors.px = proxy; |
| s->data_ctx.errors.buf = 0; |
| s->data_ctx.errors.bol = 0; |
| s->data_ctx.errors.ptr = -1; |
| } |
| |
| /* we have two inner loops here, one for the proxy, the other one for |
| * the buffer. |
| */ |
| while (s->data_ctx.errors.px) { |
| struct error_snapshot *es; |
| |
| if (s->data_ctx.errors.buf == 0) |
| es = &s->data_ctx.errors.px->invalid_req; |
| else |
| es = &s->data_ctx.errors.px->invalid_rep; |
| |
| if (!es->when.tv_sec) |
| goto next; |
| |
| if (s->data_ctx.errors.iid >= 0 && |
| s->data_ctx.errors.px->uuid != s->data_ctx.errors.iid && |
| es->oe->uuid != s->data_ctx.errors.iid) |
| goto next; |
| |
| if (s->data_ctx.errors.ptr < 0) { |
| /* just print headers now */ |
| |
| char pn[INET6_ADDRSTRLEN]; |
| struct tm tm; |
| |
| get_localtime(es->when.tv_sec, &tm); |
| chunk_printf(&msg, sizeof(trash), "\n[%02d/%s/%04d:%02d:%02d:%02d.%03d]", |
| tm.tm_mday, monthname[tm.tm_mon], tm.tm_year+1900, |
| tm.tm_hour, tm.tm_min, tm.tm_sec, es->when.tv_usec/1000); |
| |
| |
| if (es->src.ss_family == AF_INET) |
| inet_ntop(AF_INET, |
| (const void *)&((struct sockaddr_in *)&es->src)->sin_addr, |
| pn, sizeof(pn)); |
| else |
| inet_ntop(AF_INET6, |
| (const void *)&((struct sockaddr_in6 *)(&es->src))->sin6_addr, |
| pn, sizeof(pn)); |
| |
| switch (s->data_ctx.errors.buf) { |
| case 0: |
| chunk_printf(&msg, sizeof(trash), |
| " frontend %s (#%d): invalid request\n" |
| " src %s, session #%d, backend %s (#%d), server %s (#%d)\n" |
| " request length %d bytes, error at position %d:\n\n", |
| s->data_ctx.errors.px->id, s->data_ctx.errors.px->uuid, |
| pn, es->sid, es->oe->id, es->oe->uuid, |
| es->srv ? es->srv->id : "<NONE>", |
| es->srv ? es->srv->puid : -1, |
| es->len, es->pos); |
| break; |
| case 1: |
| chunk_printf(&msg, sizeof(trash), |
| " backend %s (#%d) : invalid response\n" |
| " src %s, session #%d, frontend %s (#%d), server %s (#%d)\n" |
| " response length %d bytes, error at position %d:\n\n", |
| s->data_ctx.errors.px->id, s->data_ctx.errors.px->uuid, |
| pn, es->sid, es->oe->id, es->oe->uuid, |
| es->srv ? es->srv->id : "<NONE>", |
| es->srv ? es->srv->puid : -1, |
| es->len, es->pos); |
| break; |
| } |
| |
| if (buffer_write_chunk(rep, &msg) >= 0) { |
| /* Socket buffer full. Let's try again later from the same point */ |
| return; |
| } |
| s->data_ctx.errors.ptr = 0; |
| s->data_ctx.errors.sid = es->sid; |
| } |
| |
| if (s->data_ctx.errors.sid != es->sid) { |
| /* the snapshot changed while we were dumping it */ |
| chunk_printf(&msg, sizeof(trash), |
| " WARNING! update detected on this snapshot, dump interrupted. Please re-check!\n"); |
| if (buffer_write_chunk(rep, &msg) >= 0) |
| return; |
| goto next; |
| } |
| |
| /* OK, ptr >= 0, so we have to dump the current line */ |
| while (s->data_ctx.errors.ptr < es->len) { |
| int newptr; |
| int newline; |
| |
| newline = s->data_ctx.errors.bol; |
| newptr = dump_error_line(&msg, sizeof(trash), es, &newline, s->data_ctx.errors.ptr); |
| if (newptr == s->data_ctx.errors.ptr) |
| return; |
| |
| if (buffer_write_chunk(rep, &msg) >= 0) { |
| /* Socket buffer full. Let's try again later from the same point */ |
| return; |
| } |
| s->data_ctx.errors.ptr = newptr; |
| s->data_ctx.errors.bol = newline; |
| }; |
| next: |
| s->data_ctx.errors.bol = 0; |
| s->data_ctx.errors.ptr = -1; |
| s->data_ctx.errors.buf++; |
| if (s->data_ctx.errors.buf > 1) { |
| s->data_ctx.errors.buf = 0; |
| s->data_ctx.errors.px = s->data_ctx.errors.px->next; |
| } |
| } |
| |
| /* dump complete */ |
| buffer_stop_hijack(rep); |
| s->ana_state = STATS_ST_CLOSE; |
| } |
| |
| |
| static struct cfg_kw_list cfg_kws = {{ },{ |
| { CFG_GLOBAL, "stats", stats_parse_global }, |
| { 0, NULL, NULL }, |
| }}; |
| |
| __attribute__((constructor)) |
| static void __dumpstats_module_init(void) |
| { |
| cfg_register_keywords(&cfg_kws); |
| } |
| |
| /* |
| * Local variables: |
| * c-indent-level: 8 |
| * c-basic-offset: 8 |
| * End: |
| */ |