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-rw-r--r--openbsc/src/osmo-bsc_nat/bsc_nat.c4
-rw-r--r--openbsc/src/osmo-bsc_nat/bsc_nat_rewrite.c4
-rw-r--r--openbsc/src/osmo-bsc_nat/bsc_ussd.c4
3 files changed, 6 insertions, 6 deletions
diff --git a/openbsc/src/osmo-bsc_nat/bsc_nat.c b/openbsc/src/osmo-bsc_nat/bsc_nat.c
index cdab4064d..cacb9199d 100644
--- a/openbsc/src/osmo-bsc_nat/bsc_nat.c
+++ b/openbsc/src/osmo-bsc_nat/bsc_nat.c
@@ -670,8 +670,8 @@ static void update_con_authorize(struct nat_sccp_connection *con,
if (!hdr48)
return;
- proto = hdr48->proto_discr & 0x0f;
- msg_type = hdr48->msg_type & 0xbf;
+ proto = gsm48_hdr_pdisc(hdr48);
+ msg_type = gsm48_hdr_msg_type(hdr48);
if (proto == GSM48_PDISC_MM &&
msg_type == GSM48_MT_MM_CM_SERV_ACC)
con->authorized = 1;
diff --git a/openbsc/src/osmo-bsc_nat/bsc_nat_rewrite.c b/openbsc/src/osmo-bsc_nat/bsc_nat_rewrite.c
index ca5670ca4..58667fe8c 100644
--- a/openbsc/src/osmo-bsc_nat/bsc_nat_rewrite.c
+++ b/openbsc/src/osmo-bsc_nat/bsc_nat_rewrite.c
@@ -594,8 +594,8 @@ struct msgb *bsc_nat_rewrite_msg(struct bsc_nat *nat, struct msgb *msg, struct b
return msg;
link_id = msg->l3h[1];
- proto = hdr48->proto_discr & 0x0f;
- msg_type = hdr48->msg_type & 0xbf;
+ proto = gsm48_hdr_pdisc(hdr48);
+ msg_type = gsm48_hdr_msg_type(hdr48);
if (proto == GSM48_PDISC_CC && msg_type == GSM48_MT_CC_SETUP)
new_msg = rewrite_setup(nat, msg, parsed, imsi, hdr48, len);
diff --git a/openbsc/src/osmo-bsc_nat/bsc_ussd.c b/openbsc/src/osmo-bsc_nat/bsc_ussd.c
index 108241421..2905c85b0 100644
--- a/openbsc/src/osmo-bsc_nat/bsc_ussd.c
+++ b/openbsc/src/osmo-bsc_nat/bsc_ussd.c
@@ -407,8 +407,8 @@ int bsc_ussd_check(struct nat_sccp_connection *con, struct bsc_nat_parsed *parse
if (!hdr48)
return 0;
- proto = hdr48->proto_discr & 0x0f;
- msg_type = hdr48->msg_type & 0xbf;
+ proto = gsm48_hdr_pdisc(hdr48);
+ msg_type = gsm48_hdr_msg_type(hdr48);
ti = (hdr48->proto_discr & 0x70) >> 4;
if (proto != GSM48_PDISC_NC_SS)
return 0;