diff options
-rw-r--r-- | TODO-RELEASE | 1 | ||||
-rw-r--r-- | include/osmocom/gsm/gsm0808.h | 3 | ||||
-rw-r--r-- | src/gsm/gsm0808.c | 42 | ||||
-rw-r--r-- | src/gsm/libosmogsm.map | 1 |
4 files changed, 47 insertions, 0 deletions
diff --git a/TODO-RELEASE b/TODO-RELEASE index 2d653724..8aa23673 100644 --- a/TODO-RELEASE +++ b/TODO-RELEASE @@ -13,3 +13,4 @@ sim API/ABI change all over the place gsm new API new osmo_bts_unset_feature() gb API/ABI change deprecate gprs_nsvc_crate(); export gprs_nsvc_create2() gsm API/ABI change add new member to lapd_datalink +gsm new API new gsm0808_create_common_id() diff --git a/include/osmocom/gsm/gsm0808.h b/include/osmocom/gsm/gsm0808.h index 34cec3ca..2a26fb5d 100644 --- a/include/osmocom/gsm/gsm0808.h +++ b/include/osmocom/gsm/gsm0808.h @@ -104,6 +104,9 @@ struct msgb *gsm0808_create_lcls_conn_ctrl(enum gsm0808_lcls_config config, enum gsm0808_lcls_control control); struct msgb *gsm0808_create_lcls_conn_ctrl_ack(enum gsm0808_lcls_status status); struct msgb *gsm0808_create_lcls_notification(enum gsm0808_lcls_status status, bool break_req); +struct msgb *gsm0808_create_common_id(const char *imsi, + const struct osmo_plmn_id *selected_plmn_id, + const struct osmo_plmn_id *last_used_eutran_plnm_id); /*! 3GPP TS 48.008 ยง3.2.2.5.8 Old BSS to New BSS information */ diff --git a/src/gsm/gsm0808.c b/src/gsm/gsm0808.c index 9fdf3794..e1db175f 100644 --- a/src/gsm/gsm0808.c +++ b/src/gsm/gsm0808.c @@ -1235,6 +1235,48 @@ struct msgb *gsm0808_create_handover_performed(const struct gsm0808_handover_per return msg; } +struct msgb *gsm0808_create_common_id(const char *imsi, + const struct osmo_plmn_id *selected_plmn_id, + const struct osmo_plmn_id *last_used_eutran_plnm_id) +{ + struct msgb *msg; + uint8_t mid_buf[GSM48_MI_SIZE + 2]; + uint8_t *out; + int mid_len; + + msg = msgb_alloc_headroom(BSSMAP_MSG_SIZE, BSSMAP_MSG_HEADROOM, "COMMON-ID"); + if (!msg) + return NULL; + + /* Message Type, 3.2.2.1 */ + msgb_v_put(msg, BSS_MAP_MSG_COMMON_ID); + + /* mandatory IMSI 3.2.2.6 */ + mid_len = gsm48_generate_mid_from_imsi(mid_buf, imsi); + msgb_tlv_put(msg, GSM0808_IE_IMSI, mid_len - 2, mid_buf + 2); + + /* not implemented: SNA Access Information */ + + /* Selected PLMN ID */ + if (selected_plmn_id) { + msgb_v_put(msg, GSM0808_IE_SELECTED_PLMN_ID); + out = msgb_put(msg, 3); + osmo_plmn_to_bcd(out, selected_plmn_id); + } + + /* Last used E-UTRAN PLMN ID */ + if (last_used_eutran_plnm_id) { + msgb_v_put(msg, GSM0808_IE_LAST_USED_EUTRAN_PLMN_ID); + out = msgb_put(msg, 3); + osmo_plmn_to_bcd(out, last_used_eutran_plnm_id); + } + + /* prepend header with final length */ + msg->l3h = msgb_tv_push(msg, BSSAP_MSG_BSS_MANAGEMENT, msgb_length(msg)); + + return msg; +} + /*! Prepend a DTAP header to given Message Buffer * \param[in] msgb Message Buffer * \param[in] link_id Link Identifier */ diff --git a/src/gsm/libosmogsm.map b/src/gsm/libosmogsm.map index 742cec38..713ffe3e 100644 --- a/src/gsm/libosmogsm.map +++ b/src/gsm/libosmogsm.map @@ -202,6 +202,7 @@ gsm0808_create_handover_succeeded; gsm0808_create_handover_complete; gsm0808_create_handover_failure; gsm0808_create_handover_performed; +gsm0808_create_common_id; gsm0808_prepend_dtap_header; gsm0808_enc_cause; gsm0808_enc_aoip_trasp_addr; |