From 25774b9839a9842affc6fef925166b3b9481b466 Mon Sep 17 00:00:00 2001 From: Neels Hofmeyr Date: Sat, 26 Nov 2016 15:21:05 +0100 Subject: gsm0480: code dup: introduce and use gsm0480_l3hdr_push() Add function gsm0480_l3hdr_push() to push a struct gsm48_hdr to the start of a msgb. Use in gsm0480.c and gsm0411_utils.c. Further callers of the new function will follow in openbsc as well as another libosmocore patch for ussd. Change-Id: I54fce6053ab8362015686fe22dbcd38bf1366700 --- src/gsm/gsm0411_utils.c | 9 ++------- src/gsm/gsm0480.c | 20 ++++++++++++++------ 2 files changed, 16 insertions(+), 13 deletions(-) (limited to 'src/gsm') diff --git a/src/gsm/gsm0411_utils.c b/src/gsm/gsm0411_utils.c index af57963c..5d18b120 100644 --- a/src/gsm/gsm0411_utils.c +++ b/src/gsm/gsm0411_utils.c @@ -315,12 +315,7 @@ int gsm411_push_rp_header(struct msgb *msg, uint8_t rp_msg_type, int gsm411_push_cp_header(struct msgb *msg, uint8_t proto, uint8_t trans, uint8_t msg_type) { - struct gsm48_hdr *gh; - - gh = (struct gsm48_hdr *) msgb_push(msg, sizeof(*gh)); - /* Outgoing needs the highest bit set */ - gh->proto_discr = proto | (trans << 4); - gh->msg_type = msg_type; - + /* Outgoing proto_discr needs the highest bit set */ + gsm0480_l3hdr_push(msg, proto | (trans << 4), msg_type); return 0; } diff --git a/src/gsm/gsm0480.c b/src/gsm/gsm0480.c index d628d922..cab4d01b 100644 --- a/src/gsm/gsm0480.c +++ b/src/gsm/gsm0480.c @@ -486,7 +486,6 @@ static int parse_ss_for_bs_req(const uint8_t *ss_req_data, struct msgb *gsm0480_create_ussd_resp(uint8_t invoke_id, uint8_t trans_id, const char *text) { struct msgb *msg; - struct gsm48_hdr *gh; uint8_t *ptr8; int response_len; @@ -525,10 +524,19 @@ struct msgb *gsm0480_create_ussd_resp(uint8_t invoke_id, uint8_t trans_id, const msgb_wrap_with_TL(msg, GSM0480_IE_FACILITY); /* And finally pre-pend the L3 header */ - gh = (struct gsm48_hdr *) msgb_push(msg, sizeof(*gh)); - gh->proto_discr = GSM48_PDISC_NC_SS | trans_id - | (1<<7); /* TI direction = 1 */ - gh->msg_type = GSM0480_MTYPE_RELEASE_COMPLETE; - + gsm0480_l3hdr_push(msg, + GSM48_PDISC_NC_SS | trans_id + | (1<<7) /* TI direction = 1 */, + GSM0480_MTYPE_RELEASE_COMPLETE); return msg; } + +struct gsm48_hdr *gsm0480_l3hdr_push(struct msgb *msg, uint8_t proto_discr, + uint8_t msg_type) +{ + struct gsm48_hdr *gh; + gh = (struct gsm48_hdr *) msgb_push(msg, sizeof(*gh)); + gh->proto_discr = proto_discr; + gh->msg_type = msg_type; + return gh; +} -- cgit v1.2.3