From 10db2817e5ce76eebd61dd6b607a6dfad57fa417 Mon Sep 17 00:00:00 2001 From: Oliver Smith Date: Fri, 14 Dec 2018 16:14:34 +0100 Subject: GSUP: add CHECK-IMEI message Implement necessary messages for Procedure Check_IMEI_VLR (TS 23.018 Chapter 7.1.2.9). This lets the VLR ask the EIR to check if an IMEI is valid. In the Osmocom stack, we don't have an EIR and this request will be handled by the HLR. We will be able to store the IMEI in the HLR as side-effect (OS#2541). This is roughly based on TS 29.002 8.7.1 MAP_CHECK_IMEI service, but only implements the bare minimum required IEs (imei and imei_result). Related: OS#3733 Change-Id: I085819df0ea7f3bfeb0cabebb5fd1942a23c6155 --- include/osmocom/gsm/gsup.h | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) (limited to 'include/osmocom/gsm/gsup.h') diff --git a/include/osmocom/gsm/gsup.h b/include/osmocom/gsm/gsup.h index 37e474c2..6adb0bfd 100644 --- a/include/osmocom/gsm/gsup.h +++ b/include/osmocom/gsm/gsup.h @@ -99,6 +99,9 @@ enum osmo_gsup_iei { OSMO_GSUP_SM_RP_MMS_IE = 0x45, OSMO_GSUP_SM_ALERT_RSN_IE = 0x46, + OSMO_GSUP_IMEI_IE = 0x50, + OSMO_GSUP_IMEI_RESULT_IE = 0x51, + _OSMO_GSUP_IEI_END_MARKER }; @@ -145,6 +148,10 @@ enum osmo_gsup_message_type { OSMO_GSUP_MSGT_READY_FOR_SM_REQUEST = 0b00101100, OSMO_GSUP_MSGT_READY_FOR_SM_ERROR = 0b00101101, OSMO_GSUP_MSGT_READY_FOR_SM_RESULT = 0b00101110, + + OSMO_GSUP_MSGT_CHECK_IMEI_REQUEST = 0b00110000, + OSMO_GSUP_MSGT_CHECK_IMEI_ERROR = 0b00110001, + OSMO_GSUP_MSGT_CHECK_IMEI_RESULT = 0b00110010, }; #define OSMO_GSUP_IS_MSGT_REQUEST(msgt) (((msgt) & 0b00000011) == 0b00) @@ -166,6 +173,11 @@ enum osmo_gsup_cn_domain { OSMO_GSUP_CN_DOMAIN_CS = 2, }; +enum osmo_gsup_imei_result { + OSMO_GSUP_IMEI_RESULT_ACK = 1, + OSMO_GSUP_IMEI_RESULT_NACK = 2, +}; + /*! TCAP-like session state */ enum osmo_gsup_session_state { /*! Undefined session state */ @@ -259,6 +271,10 @@ struct osmo_gsup_message { const uint8_t *sm_rp_mms; /*! Alert reason (see 3GPP TS 29.002, 7.6.8.8) */ enum osmo_gsup_sms_sm_alert_rsn_t sm_alert_rsn; + + const uint8_t *imei_enc; + size_t imei_enc_len; + enum osmo_gsup_imei_result imei_result; }; int osmo_gsup_decode(const uint8_t *data, size_t data_len, -- cgit v1.2.3