nat: Provide statistics about amount of different messages.

Provide simple statistics on how many LUs, Paging Responses
etc. we are seeing in the network.

2 files changed, 34 insertions, 1 deletions

diff --git a/openbsc/src/nat/bsc_nat.c b/openbsc/src/nat/bsc_nat.c
index 4df77589a..da85456a8 100644
--- a/openbsc/src/nat/bsc_nat.c
+++ b/openbsc/src/nat/bsc_nat.c
@@ -758,6 +758,21 @@ static void ipaccess_auth_bsc(struct tlv_parsed *tvp, struct bsc_connection *bsc
 	     bsc->write_queue.bfd.fd);
 }
 
+static void handle_con_stats(struct sccp_connections *con)
+{
+	struct rate_ctr_group *ctrg;
+	int id = bsc_conn_type_to_ctr(con);
+
+	if (id == -1)
+		return;
+
+	if (!con->bsc || !con->bsc->cfg)
+		return;
+
+	ctrg = con->bsc->cfg->stats.ctrg;
+	rate_ctr_inc(&ctrg->ctr[id]);
+}
+
 static int forward_sccp_to_msc(struct bsc_connection *bsc, struct msgb *msg)
 {
 	int con_filter = 0;
@@ -809,6 +824,7 @@ static int forward_sccp_to_msc(struct bsc_connection *bsc, struct msgb *msg)
 			con->con_type = con_type;
 			con->imsi_checked = filter;
 			con_bsc = con->bsc;
+			handle_con_stats(con);
 			break;
 		case SCCP_MSG_TYPE_RLSD:
 		case SCCP_MSG_TYPE_CREF:
diff --git a/openbsc/src/nat/bsc_nat_utils.c b/openbsc/src/nat/bsc_nat_utils.c
index 77deef424..faba7a548 100644
--- a/openbsc/src/nat/bsc_nat_utils.c
+++ b/openbsc/src/nat/bsc_nat_utils.c
@@ -40,7 +40,6 @@
 #include <netinet/in.h>
 #include <arpa/inet.h>
 
-
 static const struct rate_ctr_desc bsc_cfg_ctr_description[] = {
 	[BCFG_CTR_SCCP_CONN]     = { "sccp.conn",      "SCCP Connections         "},
 	[BCFG_CTR_SCCP_CALLS]    = { "sccp.calls",     "SCCP Assignment Commands "},
@@ -50,6 +49,10 @@ static const struct rate_ctr_desc bsc_cfg_ctr_description[] = {
 	[BCFG_CTR_REJECTED_CR]   = { "rejected.cr",    "Rejected CR due filter   "},
 	[BCFG_CTR_REJECTED_MSG]  = { "rejected.msg",   "Rejected MSG due filter  "},
 	[BCFG_CTR_ILL_PACKET]    = { "rejected.ill",   "Rejected due parse error "},
+	[BCFG_CTR_CON_TYPE_LU]   = { "conn.lu",        "Conn Location Update     "},
+	[BCFG_CTR_CON_CMSERV_RQ] = { "conn.rq",        "Conn CM Service Req      "},
+	[BCFG_CTR_CON_PAG_RESP]  = { "conn.pag",       "Conn Paging Response     "},
+	[BCFG_CTR_CON_OTHER]     = { "conn.other",     "Conn Other               "},
 };
 
 static const struct rate_ctr_group_desc bsc_cfg_ctrg_desc = {
@@ -609,3 +612,17 @@ int bsc_nat_msc_is_connected(struct bsc_nat *nat)
 {
 	return nat->msc_con->is_connected;
 }
+
+static const int con_to_ctr[] = {
+	[NAT_CON_TYPE_NONE]		= -1,
+	[NAT_CON_TYPE_LU]		= BCFG_CTR_CON_TYPE_LU,
+	[NAT_CON_TYPE_CM_SERV_REQ]	= BCFG_CTR_CON_CMSERV_RQ,
+	[NAT_CON_TYPE_PAG_RESP]		= BCFG_CTR_CON_PAG_RESP,
+	[NAT_CON_TYPE_LOCAL_REJECT]	= -1,
+	[NAT_CON_TYPE_OTHER]		= BCFG_CTR_CON_OTHER,
+};
+
+int bsc_conn_type_to_ctr(struct sccp_connections *conn)
+{
+	return con_to_ctr[conn->con_type];
+}