trace: add trace_eth_packet event

genodelabs/genode#4352

repos/base/include/base/trace/events.h

@@ -26,6 +26,7 @@ namespace Genode { namespace Trace {
 	struct Signal_submit;
 	struct Signal_received;
 	struct Checkpoint;
+	struct Ethernet_packet;
 } }
 
 
@@ -151,4 +152,33 @@ struct Genode::Trace::Checkpoint
 };
 
 
+struct Genode::Trace::Ethernet_packet
+{
+	enum Direction : char {
+		RECV = 0x0,
+		SENT = 0x1
+	};
+
+	char      const *name;
+	Direction        direction;
+	char            *data;
+	size_t           length;
+
+	Ethernet_packet(char const *name, Direction direction, char *data, size_t len)
+	: name(name), direction(direction), data(data), length(len)
+	{
+		Thread::trace(this);
+	}
+
+	Ethernet_packet(char const *name, Direction direction, void *data, size_t len)
+	: name(name), direction(direction), data((char*)data), length(len)
+	{
+		Thread::trace(this);
+	}
+
+	size_t generate(Policy_module &policy, char *dst) const {
+		return policy.trace_eth_packet(dst, name, direction == Direction::SENT, data, length); }
+};
+
+
 #endif /* _INCLUDE__BASE__TRACE__EVENTS_H_ */

repos/base/include/base/trace/policy.h

@@ -32,6 +32,7 @@ namespace Genode {
 struct Genode::Trace::Policy_module
 {
 	size_t (*max_event_size)   ();
+	size_t (*trace_eth_packet) (char *, char const *, bool, char *, size_t);
 	size_t (*checkpoint)       (char *, char const *, unsigned long, void *, unsigned char);
 	size_t (*log_output)       (char *, char const *, size_t);
 	size_t (*rpc_call)         (char *, char const *, Msgbuf_base const &);

repos/os/include/trace/policy.h

@@ -22,6 +22,7 @@ namespace Genode {
 }
 
 extern "C" size_t max_event_size   ();
+extern "C" size_t trace_eth_packet (char *dst, char const *name, bool out, char *data, size_t len);
 extern "C" size_t checkpoint       (char *dst, char const *name, unsigned long, void *, unsigned char);
 extern "C" size_t log_output       (char *dst, char const *log_message, size_t len);
 extern "C" size_t rpc_call         (char *dst, char const *rpc_name, Genode::Msgbuf_base const &);

repos/os/src/lib/trace/policy/div_zero/policy.cc

@@ -18,6 +18,10 @@ size_t max_event_size()
 	return MAX_EVENT_SIZE;
 }
 
+size_t trace_eth_packet(char *, char const *, bool, char *, size_t)
+{
+	return 0;
+}
 
 size_t checkpoint(char *dst, char const *, unsigned long, void *, unsigned char)
 {

repos/os/src/lib/trace/policy/log_output/policy.cc

@@ -10,6 +10,11 @@ size_t max_event_size()
 	return MAX_EVENT_SIZE;
 }
 
+size_t trace_eth_packet(char *, char const *, bool, char *, size_t)
+{
+	return 0;
+}
+
 size_t checkpoint(char *dst, char const *, unsigned long, void *, unsigned char)
 {
 	return 0;

repos/os/src/lib/trace/policy/null/policy.cc

@@ -7,6 +7,11 @@ size_t max_event_size()
 	return 0;
 }
 
+size_t trace_eth_packet(char *, char const *, bool, char *, size_t)
+{
+	return 0;
+}
+
 size_t checkpoint(char *dst, char const *, unsigned long, void *, unsigned char)
 {
 	return 0;

repos/os/src/lib/trace/policy/rpc_name/policy.cc

@@ -10,6 +10,11 @@ size_t max_event_size()
 	return MAX_EVENT_SIZE;
 }
 
+size_t trace_eth_packet(char *, char const *, bool, char *, size_t)
+{
+	return 0;
+}
+
 size_t checkpoint(char *, char const *, unsigned long, void *, unsigned char)
 {
 	return 0;

repos/os/src/lib/trace/policy/table.cc

@@ -19,6 +19,7 @@ extern "C" {
 	Genode::Trace::Policy_module policy_jump_table =
 	{
 		max_event_size,
+		trace_eth_packet,
 		checkpoint,
 		log_output,
 		rpc_call,