diff options
Diffstat (limited to 'openbsc/src/osmo-bsc_nat/bsc_ussd.c')
| -rw-r--r-- | openbsc/src/osmo-bsc_nat/bsc_ussd.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/openbsc/src/osmo-bsc_nat/bsc_ussd.c b/openbsc/src/osmo-bsc_nat/bsc_ussd.c index fd38f7800..48ecad57f 100644 --- a/openbsc/src/osmo-bsc_nat/bsc_ussd.c +++ b/openbsc/src/osmo-bsc_nat/bsc_ussd.c @@ -309,6 +309,7 @@ int bsc_check_ussd(struct sccp_connections *con, struct bsc_nat_parsed *parsed, { uint32_t len; uint8_t msg_type; + uint8_t proto; struct gsm48_hdr *hdr48; struct bsc_nat_acc_lst *lst; struct ussd_request req; @@ -343,8 +344,9 @@ int bsc_check_ussd(struct sccp_connections *con, struct bsc_nat_parsed *parsed, if (!hdr48) return 0; + proto = hdr48->proto_discr & 0x0f; msg_type = hdr48->msg_type & 0xbf; - if (hdr48->proto_discr != GSM48_PDISC_NC_SS || msg_type != GSM0480_MTYPE_REGISTER) + if (proto != GSM48_PDISC_NC_SS || msg_type != GSM0480_MTYPE_REGISTER) return 0; /* now check if it is a IMSI we care about */ |