From 234497132919d391fd09097ea0d94c647867339b Mon Sep 17 00:00:00 2001 From: Neels Hofmeyr Date: Mon, 30 May 2016 13:09:14 +0200 Subject: libmsc: duplicate gsm0808 / gsm48 functions (towards BSC) In osmo-nitb, libmsc would directly call the functions on the BSC level, not always via the bsc_api. When separating libmsc from libbsc, some functions are missing from the linkage. Hence duplicate these functions to libmsc, add an msc_ prefix for clarity, also add a _tx to gsm0808_cipher_mode(): * add msc_gsm0808_tx_cipher_mode() (dummy/stub) * add msc_gsm48_tx_mm_serv_ack() * add msc_gsm48_tx_mm_serv_rej() Call these from libmsc instead of * gsm0808_cipher_mode() * gsm48_tx_mm_serv_ack() * gsm48_tx_mm_serv_rej() Also add a comment relatd to msc_gsm0808_tx_cipher_mode() in two places. Change-Id: I5b276853d3af71f5e3f0a031fd17b4fff0580020 --- openbsc/src/libmsc/msc_ifaces.c | 32 ++++++++++++++++++++++++++++++++ 1 file changed, 32 insertions(+) (limited to 'openbsc/src/libmsc/msc_ifaces.c') diff --git a/openbsc/src/libmsc/msc_ifaces.c b/openbsc/src/libmsc/msc_ifaces.c index 160c90b95..500c99c2e 100644 --- a/openbsc/src/libmsc/msc_ifaces.c +++ b/openbsc/src/libmsc/msc_ifaces.c @@ -49,3 +49,35 @@ int msc_tx_dtap(struct gsm_subscriber_connection *conn, { return msc_tx(conn, msg); } + + +/* 9.2.5 CM service accept */ +int msc_gsm48_tx_mm_serv_ack(struct gsm_subscriber_connection *conn) +{ + struct msgb *msg = gsm48_msgb_alloc_name("GSM 04.08 SERV ACC"); + struct gsm48_hdr *gh = (struct gsm48_hdr *) msgb_put(msg, sizeof(*gh)); + + gh->proto_discr = GSM48_PDISC_MM; + gh->msg_type = GSM48_MT_MM_CM_SERV_ACC; + + DEBUGP(DMM, "-> CM SERVICE ACCEPT\n"); + + return msc_tx_dtap(conn, msg); +} + +/* 9.2.6 CM service reject */ +int msc_gsm48_tx_mm_serv_rej(struct gsm_subscriber_connection *conn, + enum gsm48_reject_value value) +{ + struct msgb *msg; + + msg = gsm48_create_mm_serv_rej(value); + if (!msg) { + LOGP(DMM, LOGL_ERROR, "Failed to allocate CM Service Reject.\n"); + return -1; + } + + DEBUGP(DMM, "-> CM SERVICE Reject cause: %d\n", value); + + return msc_tx_dtap(conn, msg); +} -- cgit v1.2.3