fix pcu_l1if_tx_ptcch(): do not send empty blocks to GSMTAP
This makes no sense and confuses Wireshark, so it shows malformed
packets. We are not sending empty PDTCH blocks to GSMTAP either.
Change-Id: Ic7b6aca4f3af43a6fd47d033c950c711164685a4
Related: SYS#6045
diff --git a/src/pcu_l1_if.cpp b/src/pcu_l1_if.cpp
index 221a1f7..67e4de5 100644
--- a/src/pcu_l1_if.cpp
+++ b/src/pcu_l1_if.cpp
@@ -244,7 +244,7 @@
uint32_t fn, uint8_t block_nr,
uint8_t *data, size_t data_len)
{
- if (the_pcu->gsmtap_categ_mask & (1 << PCU_GSMTAP_C_DL_PTCCH))
+ if (data_len && the_pcu->gsmtap_categ_mask & (1 << PCU_GSMTAP_C_DL_PTCCH))
gsmtap_send(the_pcu->gsmtap, arfcn, ts, GSMTAP_CHANNEL_PTCCH, 0, fn, 0, 0, data, data_len);
#ifdef ENABLE_DIRECT_PHY
if (bts->trx[trx].fl1h) {