jolly has submitted this change. ( https://gerrit.osmocom.org/c/libosmocore/+/33446 )

Change subject: ASCI: Add decoding of mobile identity in TALKER INDICATION ......................................................................

ASCI: Add decoding of mobile identity in TALKER INDICATION

gsm48.c provides a function to decode mobile identity from various messages. TALKER INDICATION is sent by the talking subscriber of a voice group call to idenitfy the current talker. The mobile identity is required to distinguish between calling subscriber and other subscribers.

Related: OS#4854 Change-Id: I331fac82e3c15abb01f554b2e70576100f2eea2d --- M src/gsm/gsm48.c 1 file changed, 26 insertions(+), 0 deletions(-)

Approvals: fixeria: Looks good to me, approved pespin: Looks good to me, but someone else must approve Jenkins Builder: Verified

diff --git a/src/gsm/gsm48.c b/src/gsm/gsm48.c index 3ec7547..4f79026 100644 --- a/src/gsm/gsm48.c +++ b/src/gsm/gsm48.c @@ -955,6 +955,17 @@ cm2_buf = (uint8_t*)&paging_response->cm2; goto got_cm2;

+ case GSM48_MT_RR_TALKER_IND: + /* Check minimum size: Header + CM2 LV + minimum MI LV */ + if (l3_len < sizeof(*gh) + 4 + 2) + return -EBADMSG; + /* CM2 shall be always 3 bytes in length */ + if (gh->data[0] != 3) + return -EBADMSG; + cm2_len = gh->data[0]; + cm2_buf = gh->data + 1; + goto got_cm2; + default: break; }