gprs: Use area terms LAI/RAI as defined in GSM 03.03

Currently the terms 'Routing area code' (RAC) and 'Location area
code' (LAC) are used in several places where 'Routing area
identification' (RAI) or 'Location area identification' (LAI) are
meant in fact.

This patch replaces RAC/LAC by RAI/LAI and 'code' by 'identification'
at these places.

Note that RAI := MCC MNC LAC RAC, and LAI := MCC MNC LAC (see GSM
03.03, sections 4.1 and 4.2).

Sponsored-by: On-Waves ehf

1 files changed, 27 insertions, 27 deletions

diff --git a/openbsc/src/gprs/gb_proxy.c b/openbsc/src/gprs/gb_proxy.c
index 3c415299a..4799344d8 100644
--- a/openbsc/src/gprs/gb_proxy.c
+++ b/openbsc/src/gprs/gb_proxy.c
@@ -45,8 +45,8 @@
 
 enum gbprox_global_ctr {
 	GBPROX_GLOB_CTR_INV_BVCI,
-	GBPROX_GLOB_CTR_INV_LAC,
-	GBPROX_GLOB_CTR_INV_RAC,
+	GBPROX_GLOB_CTR_INV_LAI,
+	GBPROX_GLOB_CTR_INV_RAI,
 	GBPROX_GLOB_CTR_INV_NSEI,
 	GBPROX_GLOB_CTR_PROTO_ERR_BSS,
 	GBPROX_GLOB_CTR_PROTO_ERR_SGSN,
@@ -59,8 +59,8 @@ enum gbprox_global_ctr {
 
 static const struct rate_ctr_desc global_ctr_description[] = {
 	{ "inv-bvci",	    "Invalid BVC Identifier          " },
-	{ "inv-lac",	    "Invalid Location Area Code      " },
-	{ "inv-rac",	    "Invalid Routing Area Code       " },
+	{ "inv-lai",	    "Invalid Location Area Identifier" },
+	{ "inv-rai",	    "Invalid Routing Area Identifier " },
 	{ "inv-nsei",	    "No BVC established for NSEI     " },
 	{ "proto-err.bss",  "BSSGP protocol error      (BSS )" },
 	{ "proto-err.sgsn", "BSSGP protocol error      (SGSN)" },
@@ -154,8 +154,8 @@ static struct gbprox_peer *peer_by_nsei(uint16_t nsei)
 	return NULL;
 }
 
-/* look-up a peer by its Routeing Area Code (RAC) */
-static struct gbprox_peer *peer_by_rac(const uint8_t *ra)
+/* look-up a peer by its Routeing Area Identification (RAI) */
+static struct gbprox_peer *peer_by_rai(const uint8_t *ra)
 {
 	struct gbprox_peer *peer;
 	llist_for_each_entry(peer, &gbprox_bts_peers, list) {
@@ -165,8 +165,8 @@ static struct gbprox_peer *peer_by_rac(const uint8_t *ra)
 	return NULL;
 }
 
-/* look-up a peer by its Location Area Code (LAC) */
-static struct gbprox_peer *peer_by_lac(const uint8_t *la)
+/* look-up a peer by its Location Area Identification (LAI) */
+static struct gbprox_peer *peer_by_lai(const uint8_t *la)
 {
 	struct gbprox_peer *peer;
 	llist_for_each_entry(peer, &gbprox_bts_peers, list) {
@@ -389,11 +389,11 @@ static int gbprox_rx_sig_from_bss(struct msgb *msg, uint16_t nsei,
 	switch (pdu_type) {
 	case BSSGP_PDUT_SUSPEND:
 	case BSSGP_PDUT_RESUME:
-		/* We implement RAC snooping during SUSPEND/RESUME, since
-		 * it establishes a relationsip between BVCI/peer and the
-		 * routeing area code.  The snooped information is then
-		 * used for routing the {SUSPEND,RESUME}_[N]ACK back to
-		 * the correct BSSGP */
+		/* We implement RAI snooping during SUSPEND/RESUME, since it
+		 * establishes a relationsip between BVCI/peer and the routeing
+		 * area identification.  The snooped information is then used
+		 * for routing the {SUSPEND,RESUME}_[N]ACK back to the correct
+		 * BSSGP */
 		if (!TLVP_PRESENT(&tp, BSSGP_IE_ROUTEING_AREA))
 			goto err_mand_ie;
 		from_peer = peer_by_nsei(nsei);
@@ -403,7 +403,7 @@ static int gbprox_rx_sig_from_bss(struct msgb *msg, uint16_t nsei,
 			sizeof(from_peer->ra));
 		gsm48_parse_ra(&raid, from_peer->ra);
 		LOGP(DGPRS, LOGL_INFO, "NSEI=%u BSSGP SUSPEND/RESUME "
-			"RAC snooping: RAC %u-%u-%u-%u behind BVCI=%u\n",
+			"RAI snooping: RAI %u-%u-%u-%u behind BVCI=%u\n",
 			nsei, raid.mcc, raid.mnc, raid.lac,
 			raid.rac , from_peer->bvci);
 		/* FIXME: This only supports one BSS per RA */
@@ -485,15 +485,15 @@ static int gbprox_rx_paging(struct msgb *msg, struct tlv_parsed *tp,
 			bvci);
 		errctr = GBPROX_GLOB_CTR_OTHER_ERR;
 	} else if (TLVP_PRESENT(tp, BSSGP_IE_ROUTEING_AREA)) {
-		peer = peer_by_rac(TLVP_VAL(tp, BSSGP_IE_ROUTEING_AREA));
-		LOGPC(DGPRS, LOGL_INFO, "routing by RAC to peer BVCI=%u\n",
+		peer = peer_by_rai(TLVP_VAL(tp, BSSGP_IE_ROUTEING_AREA));
+		LOGPC(DGPRS, LOGL_INFO, "routing by RAI to peer BVCI=%u\n",
 			peer ? peer->bvci : -1);
-		errctr = GBPROX_GLOB_CTR_INV_RAC;
+		errctr = GBPROX_GLOB_CTR_INV_RAI;
 	} else if (TLVP_PRESENT(tp, BSSGP_IE_LOCATION_AREA)) {
-		peer = peer_by_lac(TLVP_VAL(tp, BSSGP_IE_LOCATION_AREA));
-		LOGPC(DGPRS, LOGL_INFO, "routing by LAC to peer BVCI=%u\n",
+		peer = peer_by_lai(TLVP_VAL(tp, BSSGP_IE_LOCATION_AREA));
+		LOGPC(DGPRS, LOGL_INFO, "routing by LAI to peer BVCI=%u\n",
 			peer ? peer->bvci : -1);
-		errctr = GBPROX_GLOB_CTR_INV_LAC;
+		errctr = GBPROX_GLOB_CTR_INV_LAI;
 	} else
 		LOGPC(DGPRS, LOGL_INFO, "\n");
 
@@ -590,7 +590,7 @@ static int gbprox_rx_sig_from_sgsn(struct msgb *msg, uint32_t nsei,
 		break;
 	case BSSGP_PDUT_PAGING_PS:
 	case BSSGP_PDUT_PAGING_CS:
-		/* process the paging request (LAC/RAC lookup) */
+		/* process the paging request (LAI/RAI lookup) */
 		rc = gbprox_rx_paging(msg, &tp, nsei, ns_bvci);
 		break;
 	case BSSGP_PDUT_STATUS:
@@ -616,10 +616,10 @@ static int gbprox_rx_sig_from_sgsn(struct msgb *msg, uint32_t nsei,
 	case BSSGP_PDUT_SUSPEND_NACK:
 	case BSSGP_PDUT_RESUME_ACK:
 	case BSSGP_PDUT_RESUME_NACK:
-		/* RAC IE is mandatory */
+		/* RAI IE is mandatory */
 		if (!TLVP_PRESENT(&tp, BSSGP_IE_ROUTEING_AREA))
 			goto err_mand_ie;
-		peer = peer_by_rac(TLVP_VAL(&tp, BSSGP_IE_ROUTEING_AREA));
+		peer = peer_by_rai(TLVP_VAL(&tp, BSSGP_IE_ROUTEING_AREA));
 		if (!peer)
 			goto err_no_peer;
 		rc = gbprox_relay2peer(msg, peer, ns_bvci);
@@ -666,9 +666,9 @@ err_mand_ie:
 		     ctr[GBPROX_GLOB_CTR_PROTO_ERR_SGSN]);
 	return bssgp_tx_status(BSSGP_CAUSE_MISSING_MAND_IE, NULL, msg);
 err_no_peer:
-	LOGP(DGPRS, LOGL_ERROR, "NSEI=%u(SGSN) cannot find peer based on RAC\n",
+	LOGP(DGPRS, LOGL_ERROR, "NSEI=%u(SGSN) cannot find peer based on RAI\n",
 		nsei);
-	rate_ctr_inc(&get_global_ctrg()-> ctr[GBPROX_GLOB_CTR_INV_RAC]);
+	rate_ctr_inc(&get_global_ctrg()-> ctr[GBPROX_GLOB_CTR_INV_RAI]);
 	return bssgp_tx_status(BSSGP_CAUSE_UNKNOWN_BVCI, NULL, msg);
 }
 
@@ -853,7 +853,7 @@ int gbprox_dump_peers(FILE *stream, int indent, int verbose)
 		gsm48_parse_ra(&raid, peer->ra);
 
 		rc = fprintf(stream, "%*s  NSEI %u, BVCI %u, %sblocked, "
-			     "RAC %u-%u-%u-%u\n",
+			     "RAI %u-%u-%u-%u\n",
 			     indent, "",
 			     peer->nsei, peer->bvci,
 			     peer->blocked ? "" : "not ",
@@ -921,7 +921,7 @@ static void gbprox_vty_print_peer(struct vty *vty, struct gbprox_peer *peer)
 	gsm48_parse_ra(&raid, peer->ra);
 
 	vty_out(vty, "NSEI %5u, PTP-BVCI %5u, "
-		"RAC %u-%u-%u-%u",
+		"RAI %u-%u-%u-%u",
 		peer->nsei, peer->bvci,
 		raid.mcc, raid.mnc, raid.lac, raid.rac);
 	if (peer->blocked)