[PATCH] osmo-bts[master]: implement support for 3-digit MNC with leading zeros

Neels Hofmeyr gerrit-no-reply at lists.osmocom.org
Thu Feb 22 05:33:46 UTC 2018


Review at  https://gerrit.osmocom.org/6665

implement support for 3-digit MNC with leading zeros

Record the mnc_3_digits flag from SI and pass on via the PCU interface.

Bump the PCU interface version from 7 to 9, since osmo-bsc.git had a pcuif of
version 8 already, and its addition of the mnc_3_digits flag bumped to 9. I am
actually not sure whether this needs to match.
See I78f30aef7aa224b2e9db54c3a844d8f520b3aee0

Depends: Id2240f7f518494c9df6c8bda52c0d5092f90f221 (libosmocore)
Change-Id: I49cd762c3c9d7ee6a82451bdf3ffa2a060767947
---
M include/osmo-bts/gsm_data.h
M include/osmo-bts/pcuif_proto.h
M src/common/pcu_sock.c
3 files changed, 7 insertions(+), 10 deletions(-)


  git pull ssh://gerrit.osmocom.org:29418/osmo-bts refs/changes/65/6665/1

diff --git a/include/osmo-bts/gsm_data.h b/include/osmo-bts/gsm_data.h
index 853b445..0f2f75a 100644
--- a/include/osmo-bts/gsm_data.h
+++ b/include/osmo-bts/gsm_data.h
@@ -30,6 +30,7 @@
 	struct llist_head bts_list;
 	unsigned int num_bts;
 	uint16_t mcc, mnc;
+	bool mnc_3_digits;
 	struct pcu_sock_state *pcu_state;
 };
 
diff --git a/include/osmo-bts/pcuif_proto.h b/include/osmo-bts/pcuif_proto.h
index 88dc09e..5eb5e20 100644
--- a/include/osmo-bts/pcuif_proto.h
+++ b/include/osmo-bts/pcuif_proto.h
@@ -3,7 +3,7 @@
 
 #include <osmocom/gsm/l1sap.h>
 
-#define PCU_IF_VERSION		0x07
+#define PCU_IF_VERSION		0x09
 #define TXT_MAX_LEN	128
 
 /* msg_type */
@@ -103,7 +103,9 @@
 	struct gsm_pcu_if_info_trx trx[8];	/* TRX infos per BTS */
 	uint8_t		bsic;
 	/* RAI */
-	uint16_t	mcc, mnc, lac, rac;
+	uint16_t	mcc, mnc;
+	uint8_t		mnc_3_digits;
+	uint16_t	lac, rac;
 	/* NSE */
 	uint16_t	nsei;
 	uint8_t		nse_timer[7];
diff --git a/src/common/pcu_sock.c b/src/common/pcu_sock.c
index fa13f24..9e84170 100644
--- a/src/common/pcu_sock.c
+++ b/src/common/pcu_sock.c
@@ -145,6 +145,7 @@
 	/* RAI */
 	info_ind->mcc = net->mcc;
 	info_ind->mnc = net->mnc;
+	info_ind->mnc_3_digits = net->mnc_3_digits;
 	info_ind->lac = bts->location_area_code;
 	info_ind->rac = bts->gprs.rac;
 
@@ -254,14 +255,7 @@
 			break;
 		si3 = (struct gsm48_system_information_type_3 *)
 						bts->si_buf[SYSINFO_TYPE_3];
-		net->mcc = ((si3->lai.digits[0] & 0x0f) << 8)
-			| (si3->lai.digits[0] & 0xf0)
-			| (si3->lai.digits[1] & 0x0f);
-		net->mnc = ((si3->lai.digits[2] & 0x0f) << 8)
-			| (si3->lai.digits[2] & 0xf0)
-			| ((si3->lai.digits[1] & 0xf0) >> 4);
-		if ((net->mnc & 0x00f) == 0x00f)
-			net->mnc >>= 4;
+		gsm48_mcc_mnc_from_bcd2(si3->lai.digits, &net->mcc, &net->mnc, &net->mnc_3_digits);
 		bts->location_area_code = ntohs(si3->lai.lac);
 		bts->cell_identity = si3->cell_identity;
 		avail_lai = 1;

-- 
To view, visit https://gerrit.osmocom.org/6665
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Gerrit-MessageType: newchange
Gerrit-Change-Id: I49cd762c3c9d7ee6a82451bdf3ffa2a060767947
Gerrit-PatchSet: 1
Gerrit-Project: osmo-bts
Gerrit-Branch: master
Gerrit-Owner: Neels Hofmeyr <nhofmeyr at sysmocom.de>


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