return;
}
+/*
+ * IO Handler to handle message exchange with a syslog tcp client
+ */
+static void syslog_io_handler(struct appctx *appctx)
+{
+ static THREAD_LOCAL struct ist metadata[LOG_META_FIELDS];
+ struct stream_interface *si = appctx->owner;
+ struct stream *s = si_strm(si);
+ struct proxy *frontend = strm_fe(s);
+ struct listener *l = strm_li(s);
+ struct buffer *buf = get_trash_chunk();
+ int max_accept;
+ int to_skip;
+ int facility;
+ int level;
+ char *message;
+ size_t size;
+
+ max_accept = l->maxaccept ? l->maxaccept : 1;
+ while (co_data(si_oc(si))) {
+ char c;
+
+ if (max_accept <= 0)
+ goto missing_budget;
+ max_accept--;
+
+ to_skip = co_getchar(si_oc(si), &c);
+ if (!to_skip)
+ goto missing_data;
+ else if (to_skip < 0)
+ goto cli_abort;
+
+ if (c == '<') {
+ /* rfc-6587, Non-Transparent-Framing: messages separated by
+ * a trailing LF or CR LF
+ */
+ to_skip = co_getline(si_oc(si), buf->area, buf->size);
+ if (!to_skip)
+ goto missing_data;
+ else if (to_skip < 0)
+ goto cli_abort;
+
+ if (buf->area[to_skip - 1] != '\n')
+ goto parse_error;
+
+ buf->data = to_skip - 1;
+
+ /* according to rfc-6587, some devices adds CR before LF */
+ if (buf->data && buf->area[buf->data - 1] == '\r')
+ buf->data--;
+
+ }
+ else if ((unsigned char)(c - '1') <= 8) {
+ /* rfc-6587, Octet-Counting: message length in ASCII
+ * (first digit can not be ZERO), followed by a space
+ * and message length
+ */
+ char *p = NULL;
+ int msglen;
+
+ to_skip = co_getword(si_oc(si), buf->area, buf->size, ' ');
+ if (!to_skip)
+ goto missing_data;
+ else if (to_skip < 0)
+ goto cli_abort;
+
+ if (buf->area[to_skip - 1] != ' ')
+ goto parse_error;
+
+ msglen = strtol(trash.area, &p, 10);
+ if (!msglen || p != &buf->area[to_skip - 1])
+ goto parse_error;
+
+ /* message seems too large */
+ if (msglen > buf->size)
+ goto parse_error;
+
+ msglen = co_getblk(si_oc(si), buf->area, msglen, to_skip);
+ if (!msglen)
+ goto missing_data;
+ else if (msglen < 0)
+ goto cli_abort;
+
+
+ buf->data = msglen;
+ to_skip += msglen;
+ }
+ else
+ goto parse_error;
+
+ co_skip(si_oc(si), to_skip);
+
+ /* update counters */
+ _HA_ATOMIC_ADD(&cum_log_messages, 1);
+ proxy_inc_fe_req_ctr(l, frontend);
+
+ parse_log_message(buf->area, buf->data, &level, &facility, metadata, &message, &size);
+
+ process_send_log(&frontend->logsrvs, level, facility, metadata, message, size);
+
+ }
+
+missing_data:
+ /* we need more data to read */
+ si_oc(si)->flags |= CF_READ_DONTWAIT;
+
+ return;
+
+missing_budget:
+ /* it may remain some stuff to do, let's retry later */
+ appctx_wakeup(appctx);
+
+ return;
+
+parse_error:
+ if (l->counters)
+ _HA_ATOMIC_ADD(&l->counters->failed_req, 1);
+ _HA_ATOMIC_ADD(&frontend->fe_counters.failed_req, 1);
+
+ goto close;
+
+cli_abort:
+ if (l->counters)
+ _HA_ATOMIC_ADD(&l->counters->cli_aborts, 1);
+ _HA_ATOMIC_ADD(&frontend->fe_counters.cli_aborts, 1);
+
+close:
+ si_shutw(si);
+ si_shutr(si);
+
+ si_ic(si)->flags |= CF_READ_NULL;
+
+ return;
+}
+
+static struct applet syslog_applet = {
+ .obj_type = OBJ_TYPE_APPLET,
+ .name = "<SYSLOG>", /* used for logging */
+ .fct = syslog_io_handler,
+ .release = NULL,
+};
+
/*
* Parse "log-forward" section and create corresponding sink buffer.
*
px->conf.file = strdup(file);
px->conf.line = linenum;
px->mode = PR_MODE_SYSLOG;
+ px->last_change = now.tv_sec;
+ px->cap = PR_CAP_FE;
+ px->maxconn = 10;
+ px->timeout.client = TICK_ETERNITY;
+ px->accept = frontend_accept;
+ px->default_target = &syslog_applet.obj_type;
px->id = strdup(args[1]);
}
+ else if (!strcmp(args[0], "maxconn")) { /* maxconn */
+ if (warnifnotcap(cfg_log_forward, PR_CAP_FE, file, linenum, args[0], " Maybe you want 'fullconn' instead ?"))
+ err_code |= ERR_WARN;
+
+ if (*(args[1]) == 0) {
+ ha_alert("parsing [%s:%d] : '%s' expects an integer argument.\n", file, linenum, args[0]);
+ err_code |= ERR_ALERT | ERR_FATAL;
+ goto out;
+ }
+ cfg_log_forward->maxconn = atol(args[1]);
+ if (alertif_too_many_args(1, file, linenum, args, &err_code))
+ goto out;
+ }
+ else if (!strcmp(args[0], "backlog")) { /* backlog */
+ if (warnifnotcap(cfg_log_forward, PR_CAP_FE, file, linenum, args[0], NULL))
+ err_code |= ERR_WARN;
+
+ if (*(args[1]) == 0) {
+ ha_alert("parsing [%s:%d] : '%s' expects an integer argument.\n", file, linenum, args[0]);
+ err_code |= ERR_ALERT | ERR_FATAL;
+ goto out;
+ }
+ cfg_log_forward->backlog = atol(args[1]);
+ if (alertif_too_many_args(1, file, linenum, args, &err_code))
+ goto out;
+ }
+ else if (strcmp(args[0], "bind") == 0) {
+ int cur_arg;
+ static int kws_dumped;
+ struct bind_conf *bind_conf;
+ struct bind_kw *kw;
+ struct listener *l;
+
+ cur_arg = 1;
+
+ bind_conf = bind_conf_alloc(cfg_log_forward, file, linenum,
+ NULL, xprt_get(XPRT_RAW));
+ if (!bind_conf) {
+ ha_alert("parsing [%s:%d] : out of memory error.", file, linenum);
+ err_code |= ERR_ALERT | ERR_FATAL;
+ goto out;
+ }
+
+ if (!str2listener(args[1], cfg_log_forward, bind_conf, file, linenum, &errmsg)) {
+ if (errmsg && *errmsg) {
+ indent_msg(&errmsg, 2);
+ ha_alert("parsing [%s:%d] : '%s %s' : %s\n", file, linenum, args[0], args[1], errmsg);
+ }
+ else {
+ ha_alert("parsing [%s:%d] : '%s %s' : error encountered while parsing listening address %s.\n",
+ file, linenum, args[0], args[1], args[2]);
+ err_code |= ERR_ALERT | ERR_FATAL;
+ goto out;
+ }
+ }
+ list_for_each_entry(l, &bind_conf->listeners, by_bind) {
+ l->maxaccept = global.tune.maxaccept ? global.tune.maxaccept : 64;
+ l->accept = session_accept_fd;
+ l->analysers |= cfg_log_forward->fe_req_ana;
+ l->default_target = cfg_log_forward->default_target;
+ global.maxsock++;
+ }
+ cur_arg++;
+
+ while (*args[cur_arg] && (kw = bind_find_kw(args[cur_arg]))) {
+ int ret;
+
+ ret = kw->parse(args, cur_arg, cfg_log_forward, bind_conf, &errmsg);
+ err_code |= ret;
+ if (ret) {
+ if (errmsg && *errmsg) {
+ indent_msg(&errmsg, 2);
+ ha_alert("parsing [%s:%d] : %s\n", file, linenum, errmsg);
+ }
+ else
+ ha_alert("parsing [%s:%d]: error encountered while processing '%s'\n",
+ file, linenum, args[cur_arg]);
+ if (ret & ERR_FATAL)
+ goto out;
+ }
+ cur_arg += 1 + kw->skip;
+ }
+ if (*args[cur_arg] != 0) {
+ char *kws = NULL;
+
+ if (!kws_dumped) {
+ kws_dumped = 1;
+ bind_dump_kws(&kws);
+ indent_msg(&kws, 4);
+ }
+ ha_alert("parsing [%s:%d] : unknown keyword '%s' in '%s' section.%s%s\n",
+ file, linenum, args[cur_arg], cursection,
+ kws ? " Registered keywords :" : "", kws ? kws: "");
+ free(kws);
+ err_code |= ERR_ALERT | ERR_FATAL;
+ goto out;
+ }
+ }
else if (strcmp(args[0], "dgram-bind") == 0) {
int cur_arg;
static int kws_dumped;
goto out;
}
}
+ else if (strcmp(args[0], "timeout") == 0) {
+ const char *res;
+ unsigned timeout;
+
+ if (strcmp(args[1], "client") != 0) {
+ ha_alert("parsing [%s:%d] : unknown keyword '%s %s' in log-forward section.\n", file, linenum, args[0], args[1]);
+ err_code |= ERR_ALERT | ERR_FATAL;
+ goto out;
+ }
+
+ if (*args[2] == 0) {
+ ha_alert("parsing [%s:%d] : missing timeout client value.\n", file, linenum);
+ err_code |= ERR_ALERT | ERR_FATAL;
+ goto out;
+ }
+ res = parse_time_err(args[2], &timeout, TIME_UNIT_MS);
+ if (res == PARSE_TIME_OVER) {
+ memprintf(&errmsg, "timer overflow in argument '%s' to 'timeout client' (maximum value is 2147483647 ms or ~24.8 days)", args[2]);
+ }
+ else if (res == PARSE_TIME_UNDER) {
+ memprintf(&errmsg, "timer underflow in argument '%s' to 'timeout client' (minimum non-null value is 1 ms)", args[2]);
+ }
+ else if (res) {
+ memprintf(&errmsg, "unexpected character '%c' in 'timeout client'", *res);
+ return -1;
+ }
+
+ if (res) {
+ ha_alert("parsing [%s:%d] : %s : %s\n", file, linenum, args[0], errmsg);
+ err_code |= ERR_ALERT | ERR_FATAL;
+ goto out;
+ }
+ cfg_log_forward->timeout.client = MS_TO_TICKS(timeout);
+ }
else {
ha_alert("parsing [%s:%d] : unknown keyword '%s' in log-forward section.\n", file, linenum, args[0]);
err_code |= ERR_ALERT | ERR_ABORT;
projects / thirdparty / haproxy.git / commitdiff
