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osmo-mgw/src/libosmo-mgcp/mgcp_ratectr.c

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/* A Media Gateway Control Protocol Media Gateway: RFC 3435 */
/* rate-counter implementation */
/*
* (C) 2009-2012 by Holger Hans Peter Freyther <zecke@selfish.org>
* (C) 2009-2012 by On-Waves
* (C) 2017-2020 by sysmocom s.f.m.c. GmbH <info@sysmocom.de>
* All Rights Reserved
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
#include <stdatomic.h>
#include <errno.h>
#include <osmocom/core/stats.h>
#include <osmocom/core/stat_item.h>
#include <osmocom/mgcp/mgcp_conn.h>
#include <osmocom/mgcp/mgcp_trunk.h>
#include <osmocom/mgcp/mgcp_protocol.h>
#include <osmocom/mgcp/mgcp_endp.h>
#include <osmocom/mgcp/mgcp_ratectr.h>
static const struct rate_ctr_desc mgcp_general_ctr_desc[] = {
/* rx_msgs = rx_msgs_retransmitted + rx_msgs_handled + rx_msgs_unhandled + err_rx_msg_parse + err_rx_no_endpoint */
[MGCP_GENERAL_RX_MSGS_TOTAL] = { "mgcp:rx_msgs", "total number of MGCP messages received." },
[MGCP_GENERAL_RX_MSGS_RETRANSMITTED] = { "mgcp:rx_msgs_retransmitted", "number of received retransmissions." },
[MGCP_GENERAL_RX_MSGS_HANDLED] = { "mgcp:rx_msgs_handled", "number of handled MGCP messages." },
[MGCP_GENERAL_RX_MSGS_UNHANDLED] = { "mgcp:rx_msgs_unhandled", "number of unhandled MGCP messages." },
[MGCP_GENERAL_RX_FAIL_MSG_PARSE] = { "mgcp:err_rx_msg_parse", "error parsing MGCP message." },
[MGCP_GENERAL_RX_FAIL_NO_ENDPOINT] =
{ "mgcp:err_rx_no_endpoint", "can't find MGCP endpoint, probably we've used all allocated endpoints." },
};
static const struct rate_ctr_group_desc mgcp_general_ctr_group_desc = {
.group_name_prefix = "mgcp",
.group_description = "mgcp general statistics",
.class_id = OSMO_STATS_CLASS_GLOBAL,
.num_ctr = ARRAY_SIZE(mgcp_general_ctr_desc),
.ctr_desc = mgcp_general_ctr_desc
};
static const struct rate_ctr_desc mgcp_crcx_ctr_desc[] = {
[MGCP_CRCX_SUCCESS] = { "crcx:success", "CRCX command processed successfully." },
[MGCP_CRCX_FAIL_BAD_ACTION] = { "crcx:bad_action", "bad action in CRCX command." },
[MGCP_CRCX_FAIL_UNHANDLED_PARAM] = { "crcx:unhandled_param", "unhandled parameter in CRCX command." },
[MGCP_CRCX_FAIL_MISSING_CALLID] = { "crcx:missing_callid", "missing CallId in CRCX command." },
[MGCP_CRCX_FAIL_INVALID_MODE] = { "crcx:invalid_mode", "invalid connection mode in CRCX command." },
[MGCP_CRCX_FAIL_LIMIT_EXCEEDED] = { "crcx:limit_exceeded", "limit of concurrent connections was reached." },
[MGCP_CRCX_FAIL_UNKNOWN_CALLID] = { "crcx:unkown_callid", "unknown CallId in CRCX command." },
[MGCP_CRCX_FAIL_ALLOC_CONN] = { "crcx:alloc_conn_fail", "connection allocation failure." },
[MGCP_CRCX_FAIL_NO_REMOTE_CONN_DESC] =
{ "crcx:no_remote_conn_desc", "no opposite end specified for connection." },
[MGCP_CRCX_FAIL_START_RTP] = { "crcx:start_rtp_failure", "failure to start RTP processing." },
[MGCP_CRCX_FAIL_NO_OSMUX] = { "crcx:no_osmux", "no osmux offered by peer." },
[MGCP_CRCX_FAIL_INVALID_CONN_OPTIONS] = { "crcx:conn_opt", "connection options invalid." },
[MGCP_CRCX_FAIL_CODEC_NEGOTIATION] = { "crcx:codec_nego", "codec negotiation failure." },
[MGCP_CRCX_FAIL_BIND_PORT] = { "crcx:bind_port", "port bind failure." },
[MGCP_CRCX_FAIL_AVAIL] = { "crcx:unavailable", "endpoint unavailable." },
[MGCP_CRCX_FAIL_CLAIM] = { "crcx:claim", "endpoint can not be claimed." },
};
static const struct rate_ctr_group_desc mgcp_crcx_ctr_group_desc = {
.group_name_prefix = "crcx",
.group_description = "crxc statistics",
.class_id = OSMO_STATS_CLASS_GLOBAL,
.num_ctr = ARRAY_SIZE(mgcp_crcx_ctr_desc),
.ctr_desc = mgcp_crcx_ctr_desc
};
static const struct rate_ctr_desc mgcp_mdcx_ctr_desc[] = {
[MGCP_MDCX_SUCCESS] = { "mdcx:success", "MDCX command processed successfully." },
[MGCP_MDCX_FAIL_WILDCARD] = { "mdcx:wildcard", "wildcard endpoint names in MDCX commands are unsupported." },
[MGCP_MDCX_FAIL_NO_CONN] = { "mdcx:no_conn", "endpoint specified in MDCX command has no active connections." },
[MGCP_MDCX_FAIL_INVALID_CALLID] = { "mdcx:callid", "invalid CallId specified in MDCX command." },
[MGCP_MDCX_FAIL_INVALID_CONNID] = { "mdcx:connid", "invalid connection ID specified in MDCX command." },
[MGCP_MDCX_FAIL_UNHANDLED_PARAM] = { "crcx:unhandled_param", "unhandled parameter in MDCX command." },
[MGCP_MDCX_FAIL_NO_CONNID] = { "mdcx:no_connid", "no connection ID specified in MDCX command." },
[MGCP_MDCX_FAIL_CONN_NOT_FOUND] =
{ "mdcx:conn_not_found", "connection specified in MDCX command does not exist." },
[MGCP_MDCX_FAIL_INVALID_MODE] = { "mdcx:invalid_mode", "invalid connection mode in MDCX command." },
[MGCP_MDCX_FAIL_INVALID_CONN_OPTIONS] = { "mdcx:conn_opt", "connection options invalid." },
[MGCP_MDCX_FAIL_NO_REMOTE_CONN_DESC] =
{ "mdcx:no_remote_conn_desc", "no opposite end specified for connection." },
[MGCP_MDCX_FAIL_START_RTP] = { "mdcx:start_rtp_failure", "failure to start RTP processing." },
[MGCP_MDCX_FAIL_AVAIL] = { "mdcx:unavailable", "endpoint unavailable." },
};
static const struct rate_ctr_group_desc mgcp_mdcx_ctr_group_desc = {
.group_name_prefix = "mdcx",
.group_description = "mdcx statistics",
.class_id = OSMO_STATS_CLASS_GLOBAL,
.num_ctr = ARRAY_SIZE(mgcp_mdcx_ctr_desc),
.ctr_desc = mgcp_mdcx_ctr_desc
};
static const struct rate_ctr_desc mgcp_dlcx_ctr_desc[] = {
[MGCP_DLCX_SUCCESS] = { "dlcx:success", "DLCX command processed successfully." },
[MGCP_DLCX_FAIL_NO_CONN] = { "dlcx:no_conn", "endpoint specified in DLCX command has no active connections." },
[MGCP_DLCX_FAIL_INVALID_CALLID] =
{ "dlcx:callid", "CallId specified in DLCX command mismatches endpoint's CallId ." },
[MGCP_DLCX_FAIL_INVALID_CONNID] =
{ "dlcx:connid", "connection ID specified in DLCX command does not exist on endpoint." },
[MGCP_DLCX_FAIL_UNHANDLED_PARAM] = { "dlcx:unhandled_param", "unhandled parameter in DLCX command." },
[MGCP_DLCX_FAIL_AVAIL] = { "dlcx:unavailable", "endpoint unavailable." },
};
static const struct rate_ctr_group_desc mgcp_dlcx_ctr_group_desc = {
.group_name_prefix = "dlcx",
.group_description = "dlcx statistics",
.class_id = OSMO_STATS_CLASS_GLOBAL,
.num_ctr = ARRAY_SIZE(mgcp_dlcx_ctr_desc),
.ctr_desc = mgcp_dlcx_ctr_desc
};
static const struct rate_ctr_desc e1_rate_ctr_desc[] = {
[E1_I460_TRAU_RX_FAIL_CTR] = { "e1:rx_fail", "Inbound I.460 TRAU failures." },
[E1_I460_TRAU_TX_FAIL_CTR] = { "e1:tx_fail", "Outbound I.460 TRAU failures." },
[E1_I460_TRAU_MUX_EMPTY_CTR] = { "e1:i460", "Outbound I.460 MUX queue empty." }
};
static const struct rate_ctr_group_desc e1_rate_ctr_group_desc = {
.group_name_prefix = "e1",
.group_description = "e1 statistics",
.class_id = OSMO_STATS_CLASS_GLOBAL,
.num_ctr = ARRAY_SIZE(e1_rate_ctr_desc),
.ctr_desc = e1_rate_ctr_desc
};
static const struct rate_ctr_group_desc all_rtp_conn_rate_ctr_group_desc = {
.group_name_prefix = "all_rtp_conn",
.group_description = "aggregated statistics for all rtp connections",
.class_id = 1,
.num_ctr = ARRAY_SIZE(all_rtp_conn_rate_ctr_desc),
.ctr_desc = all_rtp_conn_rate_ctr_desc
};
static const struct rate_ctr_group_desc all_osmux_conn_rate_ctr_group_desc = {
.group_name_prefix = "all_osmux_conn",
.group_description = "aggregated statistics for all osmux connections",
.class_id = 1,
.num_ctr = ARRAY_SIZE(all_osmux_conn_rate_ctr_desc),
.ctr_desc = all_rtp_conn_rate_ctr_desc
};
/*! allocate global rate counters
* (called once at startup).
* \param[in] cfg mgw configuration for which the rate counters are allocated.
* \returns 0 on success, -EINVAL on failure. */
int mgcp_ratectr_global_alloc(struct mgcp_config *cfg)
{
struct mgcp_ratectr_global *ratectr = &cfg->ratectr;
static atomic_uint general_rate_ctr_index = 0;
char ctr_name[512];
if (ratectr->mgcp_general_ctr_group == NULL) {
ratectr->mgcp_general_ctr_group =
rate_ctr_group_alloc(cfg, &mgcp_general_ctr_group_desc, general_rate_ctr_index++);
if (!ratectr->mgcp_general_ctr_group)
return -EINVAL;
snprintf(ctr_name, sizeof(ctr_name), "%s:general", cfg->domain);
rate_ctr_group_set_name(ratectr->mgcp_general_ctr_group, ctr_name);
}
return 0;
}
/*! free global rate counters
* (called once at process shutdown).
* \param[in] cfg mgw configuration for which the rate counters are allocated. */
void mgcp_ratectr_global_free(struct mgcp_config *cfg)
{
struct mgcp_ratectr_global *ratectr = &cfg->ratectr;
if (ratectr->mgcp_general_ctr_group) {
rate_ctr_group_free(ratectr->mgcp_general_ctr_group);
ratectr->mgcp_general_ctr_group = NULL;
}
}
/*! allocate trunk specific rate counters
* (called once on trunk initialization).
* \param[in] trunk mgw trunk for which the rate counters are allocated.
* \returns 0 on success, -EINVAL on failure */
int mgcp_ratectr_trunk_alloc(struct mgcp_trunk *trunk)
{
struct mgcp_ratectr_trunk *ratectr = &trunk->ratectr;
static atomic_uint crcx_rate_ctr_index = 0;
static atomic_uint mdcx_rate_ctr_index = 0;
static atomic_uint dlcx_rate_ctr_index = 0;
static atomic_uint all_rtp_conn_rate_ctr_index = 0;
static atomic_uint all_osmux_conn_rate_ctr_index = 0;
char ctr_name[256];
if (ratectr->mgcp_crcx_ctr_group == NULL) {
ratectr->mgcp_crcx_ctr_group =
rate_ctr_group_alloc(trunk, &mgcp_crcx_ctr_group_desc, crcx_rate_ctr_index++);
if (!ratectr->mgcp_crcx_ctr_group)
return -EINVAL;
snprintf(ctr_name, sizeof(ctr_name), "%s-%u:crcx", mgcp_trunk_type_strs_str(trunk->trunk_type),
trunk->trunk_nr);
rate_ctr_group_set_name(ratectr->mgcp_crcx_ctr_group, ctr_name);
}
if (ratectr->mgcp_mdcx_ctr_group == NULL) {
ratectr->mgcp_mdcx_ctr_group =
rate_ctr_group_alloc(trunk, &mgcp_mdcx_ctr_group_desc, mdcx_rate_ctr_index++);
if (!ratectr->mgcp_mdcx_ctr_group)
return -EINVAL;
snprintf(ctr_name, sizeof(ctr_name), "%s-%u:mdcx", mgcp_trunk_type_strs_str(trunk->trunk_type),
trunk->trunk_nr);
rate_ctr_group_set_name(ratectr->mgcp_mdcx_ctr_group, ctr_name);
}
if (ratectr->mgcp_dlcx_ctr_group == NULL) {
ratectr->mgcp_dlcx_ctr_group =
rate_ctr_group_alloc(trunk, &mgcp_dlcx_ctr_group_desc, dlcx_rate_ctr_index++);
if (!ratectr->mgcp_dlcx_ctr_group)
return -EINVAL;
snprintf(ctr_name, sizeof(ctr_name), "%s-%u:dlcx", mgcp_trunk_type_strs_str(trunk->trunk_type),
trunk->trunk_nr);
rate_ctr_group_set_name(ratectr->mgcp_dlcx_ctr_group, ctr_name);
}
if (ratectr->all_rtp_conn_stats == NULL) {
ratectr->all_rtp_conn_stats = rate_ctr_group_alloc(trunk, &all_rtp_conn_rate_ctr_group_desc,
all_rtp_conn_rate_ctr_index++);
if (!ratectr->all_rtp_conn_stats)
return -EINVAL;
snprintf(ctr_name, sizeof(ctr_name), "%s-%u:rtp_conn", mgcp_trunk_type_strs_str(trunk->trunk_type),
trunk->trunk_nr);
rate_ctr_group_set_name(ratectr->all_rtp_conn_stats, ctr_name);
}
if (ratectr->all_osmux_conn_stats == NULL) {
ratectr->all_osmux_conn_stats = rate_ctr_group_alloc(trunk, &all_osmux_conn_rate_ctr_group_desc,
all_osmux_conn_rate_ctr_index++);
if (!ratectr->all_osmux_conn_stats)
return -EINVAL;
snprintf(ctr_name, sizeof(ctr_name), "%s-%u:osmux_conn", mgcp_trunk_type_strs_str(trunk->trunk_type),
trunk->trunk_nr);
rate_ctr_group_set_name(ratectr->all_osmux_conn_stats, ctr_name);
}
/* E1 specific */
if (trunk->trunk_type == MGCP_TRUNK_E1 && ratectr->e1_stats == NULL) {
ratectr->e1_stats = rate_ctr_group_alloc(trunk, &e1_rate_ctr_group_desc, mdcx_rate_ctr_index++);
if (!ratectr->e1_stats)
return -EINVAL;
snprintf(ctr_name, sizeof(ctr_name), "%s-%u:e1", mgcp_trunk_type_strs_str(trunk->trunk_type),
trunk->trunk_nr);
rate_ctr_group_set_name(ratectr->e1_stats, ctr_name);
}
return 0;
}
/*! free trunk specific rate counters
* (called once when trunk is freed).
* \param[in] trunk mgw trunk on which the rate counters are allocated. */
void mgcp_ratectr_trunk_free(struct mgcp_trunk *trunk)
{
struct mgcp_ratectr_trunk *ratectr = &trunk->ratectr;
if (ratectr->mgcp_crcx_ctr_group) {
rate_ctr_group_free(ratectr->mgcp_crcx_ctr_group);
ratectr->mgcp_crcx_ctr_group = NULL;
}
if (ratectr->mgcp_mdcx_ctr_group) {
rate_ctr_group_free(ratectr->mgcp_mdcx_ctr_group);
ratectr->mgcp_mdcx_ctr_group = NULL;
}
if (ratectr->mgcp_dlcx_ctr_group) {
rate_ctr_group_free(ratectr->mgcp_dlcx_ctr_group);
ratectr->mgcp_dlcx_ctr_group = NULL;
}
if (ratectr->all_rtp_conn_stats) {
rate_ctr_group_free(ratectr->all_rtp_conn_stats);
ratectr->all_rtp_conn_stats = NULL;
}
if (ratectr->all_osmux_conn_stats) {
rate_ctr_group_free(ratectr->all_osmux_conn_stats);
ratectr->all_osmux_conn_stats = NULL;
}
/* E1 specific */
if (ratectr->e1_stats) {
rate_ctr_group_free(ratectr->e1_stats);
ratectr->e1_stats = NULL;
}
}
const struct osmo_stat_item_desc trunk_stat_desc[] = {
[TRUNK_STAT_ENDPOINTS_TOTAL] = { "endpoints:total",
"Number of endpoints that exist on the trunk",
"", 60, 0 },
[TRUNK_STAT_ENDPOINTS_USED] = { "endpoints:used",
"Number of endpoints in use",
"", 60, 0 },
};
const struct osmo_stat_item_group_desc trunk_statg_desc = {
.group_name_prefix = "trunk",
.group_description = "mgw trunk",
.class_id = OSMO_STATS_CLASS_GLOBAL,
.num_items = ARRAY_SIZE(trunk_stat_desc),
.item_desc = trunk_stat_desc,
};
/*! allocate trunk specific stat items
* (called once on trunk initialization).
* \param[in] trunk for which the stat items are allocated.
* \returns 0 on success, -EINVAL on failure. */
int mgcp_stat_trunk_alloc(struct mgcp_trunk *trunk)
{
struct mgcp_stat_trunk *stats = &trunk->stats;
static unsigned int common_stat_index = 0;
char stat_name[256];
stats->common = osmo_stat_item_group_alloc(trunk, &trunk_statg_desc, common_stat_index);
if (!stats->common)
return -EINVAL;
snprintf(stat_name, sizeof(stat_name), "%s-%u:common", mgcp_trunk_type_strs_str(trunk->trunk_type),
trunk->trunk_nr);
osmo_stat_item_group_set_name(stats->common, stat_name);
common_stat_index++;
return 0;
}
/*! free trunk specific stat items
* (called once when trunk is freed).
* \param[in] trunk on which the stat items are allocated. */
void mgcp_stat_trunk_free(struct mgcp_trunk *trunk)
{
struct mgcp_stat_trunk *stats = &trunk->stats;
if (stats->common) {
osmo_stat_item_group_free(stats->common);
stats->common = NULL;
}
}
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