Free existing UL/DL TBF, if RACH has been received from MS
In this case the mobile has lost existing flows, so it make sense to free
them. The TFI(s) can be re-used immidiately, because they are not
associated by MS anymore.
diff --git a/src/gprs_rlcmac_data.cpp b/src/gprs_rlcmac_data.cpp
index b6d5062..dedf98a 100644
--- a/src/gprs_rlcmac_data.cpp
+++ b/src/gprs_rlcmac_data.cpp
@@ -380,8 +380,25 @@
if (ul_control_block->u.Packet_Resource_Request.ID.UnionType) {
tlli = ul_control_block->u.Packet_Resource_Request.ID.u.TLLI;
tbf = tbf_by_tlli(tlli, GPRS_RLCMAC_UL_TBF);
+ if (tbf) {
+ LOGP(DRLCMACUL, LOGL_NOTICE, "Got RACH from "
+ "TLLI=0x%08x while UL TBF=%d still "
+ "exists. Killing pending DL TBF\n",
+ tlli, tbf->tfi);
+ tbf_free(tbf);
+ tbf = NULL;
+ }
if (!tbf) {
uint8_t ms_class = 0;
+ struct gprs_rlcmac_tbf *dl_tbf;
+
+ if ((dl_tbf = tbf_by_tlli(tlli, GPRS_RLCMAC_DL_TBF))) {
+ LOGP(DRLCMACUL, LOGL_NOTICE, "Got RACH from "
+ "TLLI=0x%08x while DL TBF=%d still exists. "
+ "Killing pending DL TBF\n", tlli,
+ dl_tbf->tfi);
+ tbf_free(dl_tbf);
+ }
LOGP(DRLCMAC, LOGL_DEBUG, "MS requests UL TBF "
"in packet ressource request of single "
"block, so we provide one:\n");