sgsn: Reserved bits should be set to 1
Bits 3 to 8 are spare bits and should be set to 1 in etsi
specifications. Do that.
diff --git a/openbsc/src/gprs/sgsn_libgtp.c b/openbsc/src/gprs/sgsn_libgtp.c
index 52d99aa..19c46b7 100644
--- a/openbsc/src/gprs/sgsn_libgtp.c
+++ b/openbsc/src/gprs/sgsn_libgtp.c
@@ -154,7 +154,7 @@
//pdp->cch_pdp = 512; /* Charging Flat Rate */
/* MS provided APN, subscription not verified */
- pdp->selmode = 0x01;
+ pdp->selmode = 0xFC | 0x01;
/* IMSI, TEID/TEIC, FLLU/FLLC, TID, NSAPI set in pdp_newpdp */