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/*
* stap -g -I../tapset sunrpc-xprtsock.stp
*/
%{
#include <linux/kernel.h>
#include <linux/sunrpc/clnt.h>
#include <linux/sunrpc/svc.h>
struct rpcbind_args {
struct rpc_xprt * r_xprt;
u32 r_prog;
u32 r_vers;
u32 r_prot;
unsigned short r_port;
const char * r_netid;
const char * r_addr;
const char * r_owner;
int r_status;
};
%}
function rpcb_status:long(_rpc:long)
%{
struct rpcbind_args *rpc =
(struct rpcbind_args *)(long) kread(&(THIS->_rpc));
THIS->__retvalue = rpc->r_status;
CATCH_DEREF_FAULT();
%}
function rpcb_proc:string(_rpc:long)
%{
struct rpcbind_args *rpc =
(struct rpcbind_args *)(long) kread(&(THIS->_rpc));
snprintf(THIS->__retvalue, MAXSTRINGLEN, "%d:%d:%d",
rpc->r_prog, rpc->r_vers, rpc->r_prot);
CATCH_DEREF_FAULT();
%}
probe kernel.function("tcp_sendpage").return
{
if ($return == -107) /* ENOTCONN */
printf("%s(%d): tcp_sendpage: return %d (%s)\n",
execname(), pid(), $return, errno_str($return));
}
probe module("sunrpc").function("xs_sendpages").return
{
if ($return == -107) /* ENOTCONN */
printf("%s(%d): xs_sendpages: return %d (%s)\n",
execname(), pid(), $return, errno_str($return));
}
probe module("sunrpc").function("xs_send_kvec").return
{
if ($return == -107) /* ENOTCONN */
printf("%s(%d): xs_send_kvec: return %d (%s)\n",
execname(), pid(), $return, errno_str($return));
}
/*
probe module("sunrpc").function("xs_send_pagedata").return
{
if ($return == -107)
printf("%s(%d): xs_send_pagedata: return %d (%s)\n",
execname(), pid(), $return, errno_str($return));
}
*/
probe module("sunrpc").function("xs_tcp_send_request").return
{
if ($return == -107) /* ENOTCONN */
printf("%s(%d): xs_tcp_send_request: return %d (%s)\n",
execname(), pid(), $return, errno_str($return));
}
global rpcb_task
probe module("sunrpc").function("rpcb_getport_async")
{
rpcb_task = $task
}
probe module("sunrpc").function("rpcb_getport_async").return
{
if (task_status(rpcb_task))
printf("%s(%d): rpcb_getport_async: status %d\n",
execname(), pid(), task_status(rpcb_task));
}
global rpc_args;
probe module("sunrpc").function("rpcb_getport_done")
{
if (task_status($child))
printf("%s(%d): rpcb_getport_done: task status %d\n",
execname(), pid(), task_status($child));
rpc_args = $data;
}
probe module("sunrpc").function("rpcb_getport_done").return
{
if (rpcb_status(rpc_args))
printf("%s(%d): rpcb_getport_done: rpcbind: %s: status %d\n",
execname(), pid(), rpcb_proc(rpc_args), rpcb_status(rpc_args));
}
global xstcp_task
probe module("sunrpc").function("xs_tcp_connect")
{
xstcp_task = $task
}
probe module("sunrpc").function("xs_tcp_connect").return
{
if (task_status(xstcp_task))
printf("%s(%d): xs_tcp_connect: status %d\n",
execname(), pid(), task_status(rpcb_task));
}
probe begin { log("starting xprtsock probe") }
probe end { log("ending xprtsock probe") }
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