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#!/usr/bin/stap -vg
%{
#include <linux/sunrpc/xprt.h>
%}
function xprt_connected:long(xprt:long) %{
struct rpc_xprt *_xprt = (struct rpc_xprt *)(long)THIS->xprt;
THIS->__retvalue = (long)xprt_connected(_xprt);
%}
function xprt_connecting:long(xprt:long) %{
struct rpc_xprt *_xprt = (struct rpc_xprt *)(long)THIS->xprt;
THIS->__retvalue = (long)xprt_connecting(_xprt);
%}
function sk_state:string(sk:long) {
state = @cast(sk, "sock_common")->skc_state
if (state == 1) {
return "ESTABLISHED"
} else if (state == 2) {
return "SYN_SENT"
} else if (state == 3) {
return "SYN_RECV"
} else if (state == 4) {
return "FIN_WAIT1"
} else if (state == 5) {
return "FIN_WAIT2"
} else if (state == 6) {
return "TIME_WAIT"
} else if (state == 7) {
return "CLOSE"
} else if (state == 8) {
return "CLOSE_WAIT"
} else if (state == 9) {
return "LAST_ACK"
} else if (state == 10) {
return "LISTEN"
} else if (state == 11) {
return "CLOSING"
}
return sprintf("%d", state)
}
function strerr:string(e:long) {
if (e == -99) {
return "-EADDRNOTAVAILE"
} else if (e == -111) {
return "-ECONNREFUSED"
} else if (e == -104) {
return "-ECONNRESET"
} else if (e == -101) {
return "-ENETUNREACH"
} else if (e == -115) {
return "-EINPROGRESS"
} else if (e == -114) {
return "-EALREADY"
} else if (e == -22) {
return "-EINVAL"
}
return sprintf("%d", e)
}
function addrfam:string(f:long) {
if (f == 0) {
return "AF_UNSPEC"
} else if (f == 2) {
return "AF_INET"
}
return sprintf("%u", f)
}
probe begin {
printf("%s Trace start\n", ctime(gettimeofday_s()))
}
probe module("sunrpc").function("xprt_connect") {
if ($task->tk_client->cl_xprt->prot == 6) {
printf("%s --> %s() tk_pid=%u xprt=%p (%s)\n",
ctime(gettimeofday_s()), probefunc(),
$task->tk_pid, $task->tk_client->cl_xprt,
xprt_connected($task->tk_client->cl_xprt) ?
"connected" : "not connected")
}
}
probe module("sunrpc").function("xprt_connect").return {
if ($task->tk_client->cl_xprt->prot == 6) {
printf("%s <-- %s() tk_pid=%u\n\n",
ctime(gettimeofday_s()), probefunc(),
$task->tk_pid)
}
}
probe module("sunrpc").function("xs_connect") {
if ($task->tk_client->cl_xprt->prot == 6) {
connecting = xprt_connecting($task->tk_client->cl_xprt)
if (connecting) {
printf("%s --> %s() tk_pid=%u socket=%p (connecting, do nothing)\n",
ctime(gettimeofday_s()), probefunc(),
$task->tk_pid, $task->tk_client->cl_xprt->sock)
}
else if ($task->tk_client->cl_xprt->sock == 0) {
printf("%s --> %s() tk_pid=%u socket=%p (not connecting, queue work)\n",
ctime(gettimeofday_s()), probefunc(),
$task->tk_pid, $task->tk_client->cl_xprt->sock)
}
else {
printf("%s --> %s() tk_pid=%u socket=%p (not connecting, queue delayed work) reestablish_timeout=%d\n",
ctime(gettimeofday_s()), probefunc(),
$task->tk_pid, $task->tk_client->cl_xprt->sock,
$task->tk_client->cl_xprt->reestablish_timeout)
}
}
}
probe module("sunrpc").function("xs_connect").return {
if ($task->tk_client->cl_xprt->prot == 6) {
printf("%s <-- %s() tk_pid=%u\n",
ctime(gettimeofday_s()), probefunc(),
$task->tk_pid)
}
}
probe module("sunrpc").function("xs_tcp_connect_worker") {
if (@cast($args, "rpc_xprt")->sock == 0) {
printf("%s --> %s() xprt=%p socket=%p\n",
ctime(gettimeofday_s()), probefunc(),
$args, @cast($args, "rpc_xprt")->sock)
}
else {
printf("%s --> %s() xprt=%p socket=%p sk_state=%s\n",
ctime(gettimeofday_s()), probefunc(),
$args, @cast($args, "rpc_xprt")->sock,
sk_state(@cast($args, "rpc_xprt")->sock->sk))
}
}
probe module("sunrpc").function("xs_tcp_connect_worker").return {
printf("%s <-- %s()\n\n",
ctime(gettimeofday_s()), probefunc())
}
probe module("sunrpc").function("xs_tcp_reuse_connection") {
printf("%s --> %s()\n",
ctime(gettimeofday_s()), probefunc())
}
probe kernel.function("kernel_connect") {
printf("%s --> %s() socket=%p sock=%p family=%s\n",
ctime(gettimeofday_s()), probefunc(),
$sock, $sock->sk, addrfam($addr->sa_family))
}
probe kernel.function("kernel_connect").return {
printf("%s <-- %s() return=%s\n",
ctime(gettimeofday_s()), probefunc(),
strerr($return))
}
probe module("sunrpc").function("xs_tcp_state_change") {
printf("%s --> %s() sock=%p sk_state=%s\n",
ctime(gettimeofday_s()), probefunc(),
$sk, sk_state($sk))
}
probe module("sunrpc").function("xs_tcp_state_change").return {
printf("%s <-- %s()\n\n",
ctime(gettimeofday_s()), probefunc())
}
probe module("sunrpc").function("__rpc_default_timer") {
printf("%s --> %s(): tk_pid=%u Timed out\n",
ctime(gettimeofday_s()), probefunc(),
$task->tk_pid)
}
probe module("sunrpc").function("__rpc_default_timer").return {
printf("%s <-- %s()\n\n",
ctime(gettimeofday_s()), probefunc())
}
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