Change in libosmocore[master]: GSUP/SMS: introduce READY-FOR-SM message and IEs

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Vadim Yanitskiy gerrit-no-reply at lists.osmocom.org
Mon Nov 12 19:13:04 UTC 2018


Vadim Yanitskiy has uploaded this change for review. ( https://gerrit.osmocom.org/11751


Change subject: GSUP/SMS: introduce READY-FOR-SM message and IEs
......................................................................

GSUP/SMS: introduce READY-FOR-SM message and IEs

According to 3GPP TS 29.002, section 12.4, MAP-READY-FOR-SM is
used between the MSC and VLR as well as between the VLR and the
HLR to indicate that a subscriber has memory available for SMS.

This change replicates this service in GSUP as READY_FOR_SM_*.
The only mandatory IE for this service (excluding Invoke ID) is
'Alert Reason' which is replicated as OSMO_GSUP_SM_AL_REAS_IE.

Change-Id: Ic37f3b2114b8095cfce22977e67133b9103942e3
---
M include/osmocom/gsm/gsup.h
M include/osmocom/gsm/gsup_sms.h
M src/gsm/gsup.c
M tests/gsup/gsup_test.c
M tests/gsup/gsup_test.err
M tests/gsup/gsup_test.ok
6 files changed, 46 insertions(+), 1 deletion(-)



  git pull ssh://gerrit.osmocom.org:29418/libosmocore refs/changes/51/11751/1

diff --git a/include/osmocom/gsm/gsup.h b/include/osmocom/gsm/gsup.h
index c4d215a..d67ba07 100644
--- a/include/osmocom/gsm/gsup.h
+++ b/include/osmocom/gsm/gsup.h
@@ -95,6 +95,7 @@
 	OSMO_GSUP_SM_RP_DA_IE			= 0x41,
 	OSMO_GSUP_SM_RP_OA_IE			= 0x42,
 	OSMO_GSUP_SM_RP_UI_IE			= 0x43,
+	OSMO_GSUP_SM_AL_REAS_IE			= 0x44,
 };
 
 /*! GSUP message type */
@@ -136,6 +137,10 @@
 	OSMO_GSUP_MSGT_MT_FORWARD_SM_REQUEST	= 0b00101000,
 	OSMO_GSUP_MSGT_MT_FORWARD_SM_ERROR	= 0b00101001,
 	OSMO_GSUP_MSGT_MT_FORWARD_SM_RESULT	= 0b00101010,
+
+	OSMO_GSUP_MSGT_READY_FOR_SM_REQUEST	= 0b00101100,
+	OSMO_GSUP_MSGT_READY_FOR_SM_ERROR	= 0b00101101,
+	OSMO_GSUP_MSGT_READY_FOR_SM_RESULT	= 0b00101110,
 };
 
 #define OSMO_GSUP_IS_MSGT_REQUEST(msgt) (((msgt) & 0b00000011) == 0b00)
@@ -244,6 +249,8 @@
 	/*! SM-RP-UI (see 3GPP TS 29.002, 7.6.8.4), SMS TPDU */
 	const uint8_t			*sm_rp_ui;
 	size_t				sm_rp_ui_len;
+	/*! Alert reason (see 3GPP TS 29.002, 7.6.8.8) */
+	enum osmo_gsup_sms_sm_al_reas_t	sm_al_reas;
 };
 
 int osmo_gsup_decode(const uint8_t *data, size_t data_len,
diff --git a/include/osmocom/gsm/gsup_sms.h b/include/osmocom/gsm/gsup_sms.h
index 25f1e91..7c579ae 100644
--- a/include/osmocom/gsm/gsup_sms.h
+++ b/include/osmocom/gsm/gsup_sms.h
@@ -48,4 +48,11 @@
 	const uint8_t		*smsc_addr_enc;
 };
 
+/*! Alert reason values, see 7.6.8.8 */
+enum osmo_gsup_sms_sm_al_reas_t {
+	OSMO_GSUP_SMS_SM_AL_REAS_NONE		= 0x00,
+	OSMO_GSUP_SMS_SM_AL_REAS_MS_PRESENT	= 0x01,
+	OSMO_GSUP_SMS_SM_AL_REAS_MEM_AVAIL	= 0x02,
+};
+
 /*! @} */
diff --git a/src/gsm/gsup.c b/src/gsm/gsup.c
index 78b5e7b..64c2e4b 100644
--- a/src/gsm/gsup.c
+++ b/src/gsm/gsup.c
@@ -86,6 +86,10 @@
 	OSMO_VALUE_STRING(OSMO_GSUP_MSGT_MT_FORWARD_SM_ERROR),
 	OSMO_VALUE_STRING(OSMO_GSUP_MSGT_MT_FORWARD_SM_RESULT),
 
+	OSMO_VALUE_STRING(OSMO_GSUP_MSGT_READY_FOR_SM_REQUEST),
+	OSMO_VALUE_STRING(OSMO_GSUP_MSGT_READY_FOR_SM_ERROR),
+	OSMO_VALUE_STRING(OSMO_GSUP_MSGT_READY_FOR_SM_RESULT),
+
 	{ 0, NULL }
 };
 
@@ -474,6 +478,10 @@
 			gsup_msg->sm_rp_ui_len = value_len;
 			break;
 
+		case OSMO_GSUP_SM_AL_REAS_IE:
+			gsup_msg->sm_al_reas = *value;
+			break;
+
 		default:
 			LOGP(DLGSUP, LOGL_NOTICE,
 			     "GSUP IE type %d unknown\n", iei);
@@ -692,6 +700,11 @@
 				gsup_msg->sm_rp_ui_len, gsup_msg->sm_rp_ui);
 	}
 
+	if ((u8 = gsup_msg->sm_al_reas)) {
+		msgb_tlv_put(msg, OSMO_GSUP_SM_AL_REAS_IE,
+				sizeof(u8), &u8);
+	}
+
 	return 0;
 }
 
diff --git a/tests/gsup/gsup_test.c b/tests/gsup/gsup_test.c
index 75ddfcb..2091f87 100644
--- a/tests/gsup/gsup_test.c
+++ b/tests/gsup/gsup_test.c
@@ -279,6 +279,15 @@
 			0xde, 0xad, 0xbe, 0xef,
 	};
 
+	static const uint8_t send_ready_for_sm_ind[] = {
+		0x2c, /* OSMO_GSUP_MSGT_READY_FOR_SM_REQUEST */
+		TEST_IMSI_IE,
+
+		/* SM related IEs */
+		0x44, 0x01, /* Alert reason */
+			0x02, /* Memory Available (SMMA) */
+	};
+
 	static const struct test {
 		char *name;
 		const uint8_t *data;
@@ -324,6 +333,8 @@
 			send_mt_forward_sm_req, sizeof(send_mt_forward_sm_req)},
 		{"MO-/MT-ForwardSM (SMSC -> MSC) Response",
 			send_mo_mt_forward_sm_rsp, sizeof(send_mo_mt_forward_sm_rsp)},
+		{"ReadyForSM (MSC -> SMSC) Indication",
+			send_ready_for_sm_ind, sizeof(send_ready_for_sm_ind)},
 	};
 
 	printf("Test GSUP message decoding/encoding\n");
@@ -391,7 +402,7 @@
 				 * FIXME: share the maximal IE value somehow
 				 * in order to avoid manual updating of this
 				 */
-				OSMO_ASSERT(t->data[j+0] <= OSMO_GSUP_SM_RP_UI_IE);
+				OSMO_ASSERT(t->data[j+0] <= OSMO_GSUP_SM_AL_REAS_IE);
 				OSMO_ASSERT(t->data[j+1] <= ie_end - j - 2);
 
 				ie_end = j;
diff --git a/tests/gsup/gsup_test.err b/tests/gsup/gsup_test.err
index f4c832c..43d846a 100644
--- a/tests/gsup/gsup_test.err
+++ b/tests/gsup/gsup_test.err
@@ -58,6 +58,9 @@
   generated message: 2a 01 08 21 43 65 87 09 21 43 f5 30 04 de ad be ef 31 01 03 40 01 fa 43 04 de ad be ef 
   original message:  2a 01 08 21 43 65 87 09 21 43 f5 30 04 de ad be ef 31 01 03 40 01 fa 43 04 de ad be ef 
   IMSI:              123456789012345
+  generated message: 2c 01 08 21 43 65 87 09 21 43 f5 44 01 02 
+  original message:  2c 01 08 21 43 65 87 09 21 43 f5 44 01 02 
+  IMSI:              123456789012345
   message 0: tested 11 truncations, 11 parse failures
   message 1: tested 14 truncations, 13 parse failures
   message 2: tested 83 truncations, 81 parse failures
@@ -78,6 +81,7 @@
   message 17: tested 44 truncations, 38 parse failures
   message 18: tested 52 truncations, 46 parse failures
   message 19: tested 29 truncations, 25 parse failures
+  message 20: tested 14 truncations, 13 parse failures
 DLGSUP Stopping DLGSUP logging
   message 0: tested 2816 modifications, 510 parse failures
   message 1: tested 3584 modifications, 770 parse failures
@@ -99,3 +103,4 @@
   message 17: tested 11264 modifications, 2812 parse failures
   message 18: tested 13312 modifications, 2559 parse failures
   message 19: tested 7424 modifications, 1546 parse failures
+  message 20: tested 3584 modifications, 771 parse failures
diff --git a/tests/gsup/gsup_test.ok b/tests/gsup/gsup_test.ok
index 4e53527..177cb8b 100644
--- a/tests/gsup/gsup_test.ok
+++ b/tests/gsup/gsup_test.ok
@@ -39,4 +39,6 @@
           MT-ForwardSM (MSC -> SMSC) Request OK
   Testing MO-/MT-ForwardSM (SMSC -> MSC) Response
           MO-/MT-ForwardSM (SMSC -> MSC) Response OK
+  Testing ReadyForSM (MSC -> SMSC) Indication
+          ReadyForSM (MSC -> SMSC) Indication OK
 Done.

-- 
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Gerrit-Project: libosmocore
Gerrit-Branch: master
Gerrit-MessageType: newchange
Gerrit-Change-Id: Ic37f3b2114b8095cfce22977e67133b9103942e3
Gerrit-Change-Number: 11751
Gerrit-PatchSet: 1
Gerrit-Owner: Vadim Yanitskiy <axilirator at gmail.com>
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