gbproxy: Explicitly convert PTMSI to TLLI
This patch modifies the new_ptmsi handling by setting its two most
significant bits before using it as TLLI.
Sponsored-by: On-Waves ehf
diff --git a/openbsc/src/gprs/gb_proxy.c b/openbsc/src/gprs/gb_proxy.c
index 7945c42..30e4c6b 100644
--- a/openbsc/src/gprs/gb_proxy.c
+++ b/openbsc/src/gprs/gb_proxy.c
@@ -1289,8 +1289,10 @@
}
if (parse_ctx->new_ptmsi_enc && parse_ctx->to_bss && parse_ctx->imsi) {
- /* A new TLLI (PTMSI) has been signaled in the message */
+ /* A new PTMSI has been signaled in the message,
+ * register new TLLI */
uint32_t new_ptmsi;
+ uint32_t new_tlli;
if (!parse_mi_tmsi(parse_ctx->new_ptmsi_enc, GSM48_TMSI_LEN,
&new_ptmsi)) {
LOGP(DGPRS, LOGL_ERROR,
@@ -1298,9 +1300,10 @@
parse_ctx->tlli);
return;
}
+ new_tlli = gprs_tmsi2tlli(new_ptmsi, TLLI_LOCAL);
LOGP(DGPRS, LOGL_INFO,
- "Got new TLLI/PTMSI %08x (current is %08x)\n",
- new_ptmsi, parse_ctx->tlli);
+ "Got new TLLI/PTMSI %08x/%08x (current is %08x)\n",
+ new_tlli, new_ptmsi, parse_ctx->tlli);
gbprox_register_tlli(peer, new_ptmsi,
parse_ctx->imsi, parse_ctx->imsi_len);
} else if (parse_ctx->tlli && parse_ctx->imsi) {