diff options
| author | Neels Hofmeyr <neels@hofmeyr.de> | 2018-09-13 05:19:32 +0200 |
|---|---|---|
| committer | Neels Hofmeyr <neels@hofmeyr.de> | 2018-09-18 14:34:32 +0200 |
| commit | e2209c20c5a9240f7decc112ce23da328528894b (patch) | |
| tree | e7b4ab32a1aa72840e24e9f2b98f435895bea9b6 | |
| parent | ef121b2408f2374f2b2881e698c3f88cdcbb39e8 (diff) | |
Implement RR Classmark Enquiry
If the MSC sends a BSSMAP Classmark Request, send an RR Classmark Enquiry to
the MS.
(The reverse direction, i.e. sending a BSSMAP Classmark Update back to the MSC,
is already implemented.)
Related: OS#3043 (A5/3 encryption)
Related: osmo-ttcn3-hacks Idaab4d568cf986b4897ba008f6262c839d1592fb
Change-Id: If5db638fd6e8d9c2ef9e139e99f0fabe1ef16ddf
| -rw-r--r-- | include/osmocom/bsc/gsm_04_08_rr.h | 1 | ||||
| -rw-r--r-- | src/osmo-bsc/gsm_04_08_rr.c | 15 | ||||
| -rw-r--r-- | src/osmo-bsc/osmo_bsc_bssap.c | 3 |
3 files changed, 19 insertions, 0 deletions
diff --git a/include/osmocom/bsc/gsm_04_08_rr.h b/include/osmocom/bsc/gsm_04_08_rr.h index 7b7a62f85..e2e861db4 100644 --- a/include/osmocom/bsc/gsm_04_08_rr.h +++ b/include/osmocom/bsc/gsm_04_08_rr.h @@ -21,6 +21,7 @@ int send_siemens_mrpci(struct gsm_lchan *lchan, uint8_t *classmark2_lv); int gsm48_handle_paging_resp(struct gsm_subscriber_connection *conn, struct msgb *msg, struct bsc_subscr *bsub); +int gsm48_send_rr_classmark_enquiry(struct gsm_lchan *lchan); int gsm48_send_rr_ciph_mode(struct gsm_lchan *lchan, int want_imeisv); int gsm48_multirate_config(uint8_t *lv, const struct amr_multirate_conf *mr, const struct amr_mode *modes); struct msgb *gsm48_make_ho_cmd(struct gsm_lchan *new_lchan, uint8_t power_command, uint8_t ho_ref); diff --git a/src/osmo-bsc/gsm_04_08_rr.c b/src/osmo-bsc/gsm_04_08_rr.c index 2b4a1ba18..35044a320 100644 --- a/src/osmo-bsc/gsm_04_08_rr.c +++ b/src/osmo-bsc/gsm_04_08_rr.c @@ -273,6 +273,21 @@ int send_siemens_mrpci(struct gsm_lchan *lchan, return rsl_siemens_mrpci(lchan, &mrpci); } +/* 3GPP 44.018 9.1.12 Classmark Enquiry */ +int gsm48_send_rr_classmark_enquiry(struct gsm_lchan *lchan) +{ + struct msgb *msg = gsm48_msgb_alloc_name("GSM 44.018 Classmark Enquiry"); + struct gsm48_hdr *gh = (struct gsm48_hdr *) msgb_put(msg, sizeof(*gh)); + + msg->lchan = lchan; + gh->proto_discr = GSM48_PDISC_RR; + gh->msg_type = GSM48_MT_RR_CLSM_ENQ; + + DEBUGP(DRR, "%s TX CLASSMARK ENQUIRY %u\n", gsm_lchan_name(lchan), msgb_length(msg)); + + return gsm48_sendmsg(msg); +} + /* Chapter 9.1.9: Ciphering Mode Command */ int gsm48_send_rr_ciph_mode(struct gsm_lchan *lchan, int want_imeisv) { diff --git a/src/osmo-bsc/osmo_bsc_bssap.c b/src/osmo-bsc/osmo_bsc_bssap.c index d6b0b6daa..97daa5cf7 100644 --- a/src/osmo-bsc/osmo_bsc_bssap.c +++ b/src/osmo-bsc/osmo_bsc_bssap.c @@ -870,6 +870,9 @@ static int bssmap_rcvmsg_dt1(struct gsm_subscriber_connection *conn, case BSS_MAP_MSG_HANDOVER_CMD: ret = bssmap_handle_handover_cmd(conn, msg, length); break; + case BSS_MAP_MSG_CLASSMARK_RQST: + ret = gsm48_send_rr_classmark_enquiry(conn->lchan); + break; default: LOGP(DMSC, LOGL_NOTICE, "Unimplemented msg type: %s\n", gsm0808_bssmap_name(msg->l4h[0])); |