Introduce --gsmtap-ip/-i option
This option allows user to use custom IP address instead of default "localhost".
Correspondingly gsmtap init moved from sysmoBTS-specific code up to "bts" struct
level. This way it can be easier reused by other implementations. The
lack of regressions was verified by checking following command on
sysmoBTS: "./osmo-pcu -c osmo-pcu.cfg -r 1 -i 192.168.10.1" where
192.168.10.1 is the host which was running wireshark and netcat:
"nc -u -l 192.168.10.1 -p 4729" to accept gsmtap flow.
diff --git a/src/pcu_l1_if.cpp b/src/pcu_l1_if.cpp
index 9d7dbee..e816e6f 100644
--- a/src/pcu_l1_if.cpp
+++ b/src/pcu_l1_if.cpp
@@ -42,7 +42,7 @@
// FIXME: move this, when changed from c++ to c.
extern "C" {
-void *l1if_open_pdch(void *priv, uint32_t hlayer1);
+void *l1if_open_pdch(void *priv, uint32_t hlayer1, struct gsmtap_inst *gsmtap);
int l1if_connect_pdch(void *obj, uint8_t ts);
int l1if_pdch_req(void *obj, uint8_t ts, int is_ptcch, uint32_t fn,
uint16_t arfcn, uint8_t block_nr, uint8_t *data, uint8_t len);
@@ -436,7 +436,8 @@
if (!bts->trx[trx].fl1h)
bts->trx[trx].fl1h = l1if_open_pdch(
(void *)trx,
- info_ind->trx[trx].hlayer1);
+ info_ind->trx[trx].hlayer1,
+ bts->gsmtap);
if (!bts->trx[trx].fl1h) {
LOGP(DL1IF, LOGL_FATAL, "Failed to open direct "
"DSP access for PDCH.\n");