diff mbox series

[23/26] trace-cmd agent proxy: Add the remote guest cid to guest list

Message ID 20220514024756.1319681-24-rostedt@goodmis.org (mailing list archive)
State Accepted
Commit 8a8e8824e67adc9ca87e3d646592e93952a2e0e8
Headers show
Series trace-cmd: Add agent proxy (agent on the host) | expand

Commit Message

Steven Rostedt May 14, 2022, 2:47 a.m. UTC 
From: "Steven Rostedt (Google)" <rostedt@goodmis.org>

When the trace-cmd agent is passed the proxy flag "-P" with the guest
CID that it can talk to, add it to the list of guests, as it should be
able to find all the host tasks that control the guest.

Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
---
 tracecmd/trace-agent.c | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)
diff mbox series

Patch

diff --git a/tracecmd/trace-agent.c b/tracecmd/trace-agent.c
index 360079297b88..4430cb5506ff 100644
--- a/tracecmd/trace-agent.c
+++ b/tracecmd/trace-agent.c
@@ -22,6 +22,8 @@ 
 #include "trace-local.h"
 #include "trace-msg.h"
 
+#define GUEST_NAME	"::GUEST::"
+
 #define dprint(fmt, ...)	tracecmd_debug(fmt, ##__VA_ARGS__)
 
 static void make_vsocks(int nr, int *fds, unsigned int *ports)
@@ -377,6 +379,7 @@  enum {
 
 void trace_agent(int argc, char **argv)
 {
+	struct trace_guest *guest;
 	bool do_daemon = false;
 	unsigned int port = TRACE_AGENT_DEFAULT_PORT;
 	const char *network = NULL;
@@ -419,8 +422,11 @@  void trace_agent(int argc, char **argv)
 			break;
 		case 'P':
 			proxy_id = atoi(optarg);
-			if (network)
-				die("-P cannot be used with -N");
+
+			guest = trace_get_guest(proxy_id, GUEST_NAME);
+			if (!guest)
+				die("Failed to allocate guest instance");
+
 			break;
 		case DO_DEBUG:
 			tracecmd_set_debug(true);