bankd: Add GSMTAP functionality for SIM traffic
If a --gsmtap-host (-g) address is specified on the command line, trace
SIM ATRs and APDUs to the given IP. If --gsmtap-slot (-G) is provided,
limit tracing to the specified bank slot number. This feature may be
useful when diagnosing issues with the remote SIM framework.
Added new log category: DGSMTAP
Also, cleaned up alignment in bankd --help output and removed unused -o option.
Change-Id: I05b599858d8758633aa56c3f12f258c27cf42d08
diff --git a/src/bankd/gsmtap.h b/src/bankd/gsmtap.h
new file mode 100644
index 0000000..87fe6a0
--- /dev/null
+++ b/src/bankd/gsmtap.h
@@ -0,0 +1,7 @@
+#pragma once
+#include <stdint.h>
+#include <osmocom/core/gsmtap.h>
+
+int bankd_gsmtap_init(const char *gsmtap_host);
+int bankd_gsmtap_send_apdu(uint8_t sub_type, const uint8_t *mdm_tpdu, unsigned int mdm_tpdu_len,
+ const uint8_t *sim_tpdu, unsigned int sim_tpdu_len);