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// rpc tapset
// Copyright (C) 2006 IBM Corp.
// Copyright (C) 2007 Bull S.A.S
// Copyright (C) 2008, 2010-2014 Red Hat
//
// This file is part of systemtap, and is free software. You can
// redistribute it and/or modify it under the terms of the GNU General
// Public License (GPL); either version 2, or (at your option) any
// later version.
%{
// Includes everything needed for __rpc_prot_from_protocol().
#include <linux/sunrpc/clnt.h>
%}
probe sunrpc.entry =
sunrpc.clnt.entry,
sunrpc.svc.entry,
sunrpc.sched.entry
{}
probe sunrpc.return =
sunrpc.clnt.return,
sunrpc.svc.return,
sunrpc.sched.return
{}
/******************************************************************
* Probe points on RPC client functions *
******************************************************************/
probe sunrpc.clnt.entry =
sunrpc.clnt.create_client,
sunrpc.clnt.clone_client,
sunrpc.clnt.bind_new_program,
sunrpc.clnt.shutdown_client,
sunrpc.clnt.call_sync,
sunrpc.clnt.call_async,
sunrpc.clnt.restart_call
{}
probe sunrpc.clnt.return =
sunrpc.clnt.create_client.return,
sunrpc.clnt.clone_client.return,
sunrpc.clnt.bind_new_program.return,
sunrpc.clnt.shutdown_client.return,
sunrpc.clnt.call_sync.return,
sunrpc.clnt.call_async.return,
sunrpc.clnt.restart_call.return
{}
/*
* Fires when an RPC client is to be created
*
* kernels > 2.6.18
*
* struct rpc_clnt *
* rpc_create(struct rpc_create_args *args)
* The rpc_create() function is used to create an RPC client. It
* calculates some arguments (such as args->servername), then
* calls rpc_new_client(). We need the calculated arguments, so
* we'll probe rpc_new_client(). But, see discussion of
* sunrpc.clnt.create_client.return below.
*
* static struct rpc_clnt *
* rpc_new_client(const struct rpc_create_args *args, struct rpc_xprt *xprt)
*
* kernels <= 2.6.18
*
* static struct rpc_clnt *
* rpc_new_client(struct rpc_xprt *xprt, char *servname,
* struct rpc_program *program, u32 vers,
* rpc_authflavor_t flavor)
*
* struct rpc_clnt *
* rpc_create_client(struct rpc_xprt *xprt, char *servname,
* struct rpc_program *info, u32 version,
* rpc_authflavor_t authflavor)
*/
/**
* probe sunrpc.clnt.create_client - Create an RPC client
*
* @servername: the server machine name
* @progname: the RPC program name
* @prog: the RPC program number
* @vers: the RPC program version number
* @prot: the IP protocol number
* @port: the port number
* @authflavor: the authentication flavor
*/
probe sunrpc.clnt.create_client =
_sunrpc.clnt.create_client.rpc_new_client_inline !,
_sunrpc.clnt.create_client.rpc_new_client ?,
_sunrpc.clnt.create_client.rpc_create_client ?
{
name = "sunrpc.clnt.create_client"
argstr = sprintf("%s %s %d %d %d %d %d", servername, progname,
prog, vers, prot, port, authflavor)
}
/*
* Newer kernels (> 2.6.18) compiled with gcc less than version
* 4.4.3-16, tend to have debuginfo that doesn't include location
* information for inline function arguments. This is a problem, since
* we need the arguments to rpc_new_client(), which is inline. Since
* we can't get them for those kernels, we stash (and delete) the value
* of the 'args' parameter of rpc_create(). We then use this value
* when probing the inline version of rpc_new_client() (if we don't
* have the real arguments to that inline function).
*/
@__private30 global __rpc_create_args
probe kernel.function("rpc_create").call !,
module("sunrpc").function("rpc_create").call ?
{
__rpc_create_args[tid()] = $args
}
probe kernel.function("rpc_create").return !,
module("sunrpc").function("rpc_create").return ?
{
delete __rpc_create_args[tid()]
}
/*
* This function could be written in script language, but we'd need
* embedded-C functions for XPRT_TRANSPORT_{UDP,TCP,BC_TCP} and
* IPPROTO_{UDP,TCP}. So, do it all in embedded-C.
*/
@__private30 function __rpc_prot_from_protocol:long(protocol:long)
%{
switch (STAP_ARG_protocol) {
#ifdef XPRT_TRANSPORT_BC
case XPRT_TRANSPORT_UDP:
STAP_RETVALUE = IPPROTO_UDP;
break;
case XPRT_TRANSPORT_TCP:
case XPRT_TRANSPORT_BC_TCP:
STAP_RETVALUE = IPPROTO_TCP;
break;
#endif
default:
STAP_RETVALUE = -1;
break;
}
%}
/*
* The probe for the inline version of "rpc_new_client" (kernels >
* 2.6.18) and the non-inline version of "rpc_new_client" (kernels <=
* 2.6.18) could be combined. However, the optimizer isn't smart
* enough to optimize away the '__rpc_create_args' global then.
*/
probe _sunrpc.clnt.create_client.rpc_new_client_inline =
kernel.function("rpc_new_client").inline !,
module("sunrpc").function("rpc_new_client").inline
{
if (@defined($args)) { # kernel > 2.6.18 (with good debuginfo)
%(systemtap_v <= "1.7" %?
args = $args
%)
__args = $args
servername = __rpc_format_servername($args->servername,
$args->address)
progname = kernel_string($args->program->name)
prog = $args->prognumber
vers = vers_from_prog($args->program, $args->version)
authflavor = $args->authflavor
prot = $xprt->prot
port = @choose_defined($xprt->port, port_from_xprt($xprt))
}
else { # kernel > 2.6.18 (with bad debuginfo)
%(systemtap_v <= "1.7" %?
args = __rpc_create_args[tid()]
%)
__args = __rpc_create_args[tid()]
servername = __rpc_format_servername(@cast(__args, "rpc_create_args", "kernel:sunrpc")->servername,
@cast(__args, "rpc_create_args", "kernel:sunrpc")->address)
progname = kernel_string(@cast(__args, "rpc_create_args", "kernel:sunrpc")->program->name)
prog = @cast(__args, "rpc_create_args", "kernel:sunrpc")->prognumber
vers = vers_from_prog(@cast(__args, "rpc_create_args", "kernel:sunrpc")->program, @cast(__args, "rpc_create_args", "kernel:sunrpc")->version)
authflavor = @cast(__args, "rpc_create_args", "kernel:sunrpc")->authflavor
prot = __rpc_prot_from_protocol(@cast(__args, "rpc_create_args", "kernel:sunrpc")->protocol)
# Since we can't find $xprt, we can't know the port
port = -1
}
}
probe _sunrpc.clnt.create_client.rpc_new_client =
kernel.function("rpc_new_client").call !,
module("sunrpc").function("rpc_new_client").call ?
{
if (@defined($args)) {
# kernel > 2.6.18
servername = __rpc_format_servername($args->servername,
$args->address)
progname = kernel_string($args->program->name)
prog = $args->prognumber
vers = vers_from_prog($args->program, $args->version)
authflavor = $args->authflavor
}
else {
# kernel <= 2.6.18
servername = __rpc_format_servername($servname, &$xprt->addr)
progname = kernel_string($program->name)
prog = $program->number
vers = vers_from_prog($program, $vers)
authflavor = $flavor
}
prot = $xprt->prot
port = @choose_defined($xprt->port, port_from_xprt($xprt))
}
probe _sunrpc.clnt.create_client.rpc_create_client =
kernel.function("rpc_create_client") !,
module("sunrpc").function("rpc_create_client") ?
{
servername = __rpc_format_servername($servname, &$xprt->addr)
if (@defined($info)) {
progname = kernel_string($info->name)
prog = $info->number
vers = vers_from_prog($info, $version)
authflavor = $authflavor
}
else {
progname = kernel_string($program->name)
prog = $program->number
vers = vers_from_prog($program, $vers)
authflavor = $flavor
}
prot = $xprt->prot
port = @choose_defined($xprt->port, port_from_xprt($xprt))
}
/*
* On newer kernels, we want to probe the return of rpc_new_client()
* here. But because of problems with return probes on inline
* functions (PR 4413), we have to probe the return of rpc_create()
* instead. So, if we find the return of rpc_create() (the only
* caller of rpc_new_client()), we're done.
*/
probe sunrpc.clnt.create_client.return =
_sunrpc.clnt.create_client.return.rpc_create !,
_sunrpc.clnt.create_client.return.rpc_new_client ?,
_sunrpc.clnt.create_client.return.rpc_create_client ?
{
name = "sunrpc.clnt.create_client.return"
retstr = return_str(2, $return)
}
probe _sunrpc.clnt.create_client.return.rpc_create =
kernel.function("rpc_create").return !,
module("sunrpc").function("rpc_create").return
{
}
probe _sunrpc.clnt.create_client.return.rpc_new_client =
kernel.function("rpc_new_client").return !,
module("sunrpc").function("rpc_new_client").return ?
{
}
probe _sunrpc.clnt.create_client.return.rpc_create_client =
kernel.function("rpc_create_client").return !,
module("sunrpc").function("rpc_create_client").return ?
{
}
/**
* probe sunrpc.clnt.clone_client - Clone an RPC client structure
*
* @servername: the server machine name
* @progname: the RPC program name
* @prog: the RPC program number
* @vers: the RPC program version number
* @prot: the IP protocol number
* @port: the port number
* @authflavor: the authentication flavor
*/
probe sunrpc.clnt.clone_client = kernel.function("rpc_clone_client") !,
module("sunrpc").function("rpc_clone_client")
{
if (@defined($clnt->cl_server))
servername = __rpc_format_servername($clnt->cl_server,
&$clnt->cl_xprt->addr)
else {
__xprt = rcu_dereference($clnt->cl_xprt)
servername = __rpc_format_servername(@cast(__xprt, "rpc_xprt")->servername,
&@cast(__xprt, "rpc_xprt")->addr)
}
progname = kernel_string(@choose_defined($clnt->cl_program->name,
$clnt->cl_protname))
prog = prog_from_clnt($clnt)
vers = vers_from_clnt($clnt)
prot = prot_from_clnt($clnt)
port = port_from_clnt($clnt)
authflavor = $clnt->cl_auth->au_flavor
name = "sunrpc.clnt.clone_client"
argstr = sprintf("%s %s %d %d %d %d %d", servername, progname,
prog, vers, prot, port, authflavor)
}
probe sunrpc.clnt.clone_client.return =
kernel.function("rpc_clone_client").return !,
module("sunrpc").function("rpc_clone_client").return
{
name = "sunrpc.clnt.clone_client.return"
retstr = return_str(2, $return)
}
/**
* probe sunrpc.clnt.shutdown_client - Shutdown an RPC client
*
* @servername: the server machine name
* @progname: the RPC program name
* @prog: the RPC program number
* @vers: the RPC program version number
* @prot: the IP protocol number
* @port: the port number
* @authflavor: the authentication flavor
* @clones: the number of clones
* @tasks: the number of references
* @netreconn: the count of reconnections
* @rpccnt: the count of RPC calls
* @om_ops: the count of operations
* @om_ntrans: the count of RPC transmissions
* @om_bytes_sent: the count of bytes out
* @om_bytes_recv: the count of bytes in
* @om_queue: the jiffies queued for xmit
* @om_rtt: the RPC RTT jiffies
* @om_execute: the RPC execution jiffies
*/
probe sunrpc.clnt.shutdown_client = kernel.function("rpc_shutdown_client") !,
module("sunrpc").function("rpc_shutdown_client")
{
if (@defined($clnt->cl_server))
servername = __rpc_format_servername($clnt->cl_server,
&$clnt->cl_xprt->addr)
else {
__xprt = rcu_dereference($clnt->cl_xprt)
servername = __rpc_format_servername(@cast(__xprt, "rpc_xprt")->servername,
&@cast(__xprt, "rpc_xprt")->addr)
}
progname = kernel_string(@choose_defined($clnt->cl_program->name,
$clnt->cl_protname))
prog = prog_from_clnt($clnt)
vers = vers_from_clnt($clnt)
prot = prot_from_clnt($clnt)
port = port_from_clnt($clnt)
authflavor = $clnt->cl_auth->au_flavor
clones = clones_from_clnt($clnt)
tasks = tasks_from_clnt($clnt)
/* per-program statistics */
netreconn = $clnt->cl_stats->netreconn
rpccnt = $clnt->cl_stats->rpccnt
/* per-client statistics */
if (@defined($clnt->cl_metrics)) {
om_ops = $clnt->cl_metrics->om_ops
om_ntrans = $clnt->cl_metrics->om_ntrans
om_bytes_sent = $clnt->cl_metrics->om_bytes_sent
om_bytes_recv = $clnt->cl_metrics->om_bytes_recv
if (@defined($clnt->cl_metrics->om_queue->tv64)) {
om_queue = $clnt->cl_metrics->om_queue->tv64
om_rtt = $clnt->cl_metrics->om_rtt->tv64
om_execute = $clnt->cl_metrics->om_execute->tv64
}
else
{
om_queue = $clnt->cl_metrics->om_queue
om_rtt = $clnt->cl_metrics->om_rtt
om_execute = $clnt->cl_metrics->om_execute
}
}
else {
om_ops = -1
om_ntrans = -1
om_bytes_sent = -1
om_bytes_recv = -1
om_queue = -1
om_rtt = -1
om_execute = -1
}
name = "sunrpc.clnt.shutdown_client"
argstr = sprintf("%s %s %d %d %d %d %d %d %d", servername, progname,
prog, vers, prot, port, authflavor, clones, tasks)
}
probe sunrpc.clnt.shutdown_client.return =
kernel.function("rpc_shutdown_client").return !,
module("sunrpc").function("rpc_shutdown_client").return
{
name = "sunrpc.clnt.shutdown_client.return"
retstr = (@defined($return) ? return_str(1, $return) : "N/A")
}
/**
* probe sunrpc.clnt.bind_new_program - Bind a new RPC program to an existing client
*
* @servername: the server machine name
* @old_progname: the name of old RPC program
* @old_prog: the number of old RPC program
* @old_vers: the version of old RPC program
* @progname: the name of new RPC program
* @prog: the number of new RPC program
* @vers: the version of new RPC program
*/
probe sunrpc.clnt.bind_new_program =
kernel.function("rpc_bind_new_program") !,
module("sunrpc").function("rpc_bind_new_program")
{
if (@defined($old->cl_server))
servername = __rpc_format_servername($old->cl_server,
&$old->cl_xprt->addr)
else {
__xprt = rcu_dereference($old->cl_xprt)
servername = __rpc_format_servername(@cast(__xprt, "rpc_xprt")->servername,
&@cast(__xprt, "rpc_xprt")->addr)
}
old_progname = kernel_string(@choose_defined($old->cl_program->name,
$old->cl_protname))
old_prog = prog_from_clnt($old)
old_vers = vers_from_clnt($old)
progname = kernel_string($program->name)
prog = $program->number
vers = vers_from_prog($program, $vers)
name = "sunrpc.clnt.bind_new_program"
argstr = sprintf("%s %s %d %s %d", servername, old_progname,
old_vers, progname, vers)
}
probe sunrpc.clnt.bind_new_program.return =
kernel.function("rpc_bind_new_program").return !,
module("sunrpc").function("rpc_bind_new_program").return
{
name = "sunrpc.clnt.bind_new_program.return"
retstr = return_str(2, $return)
}
/**
* probe sunrpc.clnt.call_sync - Make a synchronous RPC call
*
* @servername: the server machine name
* @progname: the RPC program name
* @prog: the RPC program number
* @vers: the RPC program version number
* @prot: the IP protocol number
* @port: the port number
* @xid: current transmission id
* @dead: whether this client is abandoned
* @procname: the procedure name in this RPC call
* @proc: the procedure number in this RPC call
* @flags: flags
*/
probe sunrpc.clnt.call_sync = kernel.function("rpc_call_sync") !,
module("sunrpc").function("rpc_call_sync")
{
if (@defined($clnt->cl_server))
servername = __rpc_format_servername($clnt->cl_server,
&$clnt->cl_xprt->addr)
else {
__xprt = rcu_dereference($clnt->cl_xprt)
servername = __rpc_format_servername(@cast(__xprt, "rpc_xprt")->servername,
&@cast(__xprt, "rpc_xprt")->addr)
}
progname = kernel_string(@choose_defined($clnt->cl_program->name,
$clnt->cl_protname))
prog = prog_from_clnt($clnt)
vers = vers_from_clnt($clnt)
prot = prot_from_clnt($clnt)
port = port_from_clnt($clnt)
xid = xid_from_clnt($clnt)
dead = @choose_defined($clnt->cl_dead,
atomic_read(@choose_defined(&$clnt->cl_kref->refcount,
&$clnt->cl_count)) == 0)
proc = proc_from_msg($msg)
procname = kernel_string(@choose_defined($msg->rpc_proc->p_name, 0), "NULL")
flags = $flags
name = "sunrpc.clnt.call_sync"
argstr = sprintf("%s %d %s %d %s %d", servername, xid, progname,
vers, procname, flags)
}
probe sunrpc.clnt.call_sync.return = kernel.function("rpc_call_sync").return !,
module("sunrpc").function("rpc_call_sync").return
{
name = "sunrpc.clnt.call_sync.return"
retstr = return_str(1, $return)
}
/**
* probe sunrpc.clnt.call_async - Make an asynchronous RPC call
*
* @servername: the server machine name
* @progname: the RPC program name
* @prog: the RPC program number
* @vers: the RPC program version number
* @prot: the IP protocol number
* @port: the port number
* @xid: current transmission id
* @dead: whether this client is abandoned
* @procname: the procedure name in this RPC call
* @proc: the procedure number in this RPC call
* @flags: flags
*/
probe sunrpc.clnt.call_async = kernel.function("rpc_call_async") !,
module("sunrpc").function("rpc_call_async")
{
if (@defined($clnt->cl_server))
servername = __rpc_format_servername($clnt->cl_server,
&$clnt->cl_xprt->addr)
else {
__xprt = rcu_dereference($clnt->cl_xprt)
servername = __rpc_format_servername(@cast(__xprt, "rpc_xprt")->servername,
&@cast(__xprt, "rpc_xprt")->addr)
}
progname = kernel_string(@choose_defined($clnt->cl_program->name,
$clnt->cl_protname))
prog = prog_from_clnt($clnt)
vers = vers_from_clnt($clnt)
prot = prot_from_clnt($clnt)
port = port_from_clnt($clnt)
xid = xid_from_clnt($clnt)
dead = @choose_defined($clnt->cl_dead,
atomic_read(@choose_defined(&$clnt->cl_kref->refcount,
&$clnt->cl_count)) == 0)
proc = proc_from_msg($msg)
procname = kernel_string(@choose_defined($msg->rpc_proc->p_name, 0), "NULL")
flags = $flags
name = "sunrpc.clnt.call_async"
argstr = sprintf("%s %d %s %d %s %d", servername, xid, progname,
vers, procname, flags)
}
probe sunrpc.clnt.call_async.return =
kernel.function("rpc_call_async").return !,
module("sunrpc").function("rpc_call_async").return
{
name = "sunrpc.clnt.call_async.return"
retstr = return_str(1, $return)
}
/**
* probe sunrpc.clnt.restart_call - Restart an asynchronous RPC call
*
* @servername: the server machine name
* @prog: the RPC program number
* @xid: the transmission id
* @tk_pid: the debugging aid of task
* @tk_flags: the task flags
* @tk_priority: the task priority
* @tk_runstate: the task run status
*/
probe sunrpc.clnt.restart_call = kernel.function("rpc_restart_call") !,
module("sunrpc").function("rpc_restart_call")
{
if (@defined($task->tk_client->cl_server))
servername = __rpc_format_servername($task->tk_client->cl_server,
&$task->tk_client->cl_xprt->addr)
else {
__xprt = rcu_dereference($task->tk_client->cl_xprt)
servername = __rpc_format_servername(@cast(__xprt, "rpc_xprt")->servername,
&@cast(__xprt, "rpc_xprt")->addr)
}
prog = prog_from_clnt($task->tk_client)
xid = $task->tk_rqstp->rq_xid
tk_pid = $task->tk_pid
tk_flags = $task->tk_flags
tk_priority = $task->tk_priority
tk_runstate = $task->tk_runstate
name = "sunrpc.clnt.restart_call"
argstr = sprintf("%s %d %d %d %d %d %d", servername, prog, xid, tk_pid,
tk_flags, tk_priority, tk_runstate)
}
probe sunrpc.clnt.restart_call.return =
kernel.function("rpc_restart_call").return !,
module("sunrpc").function("rpc_restart_call").return
{
name = "sunrpc.clnt.restart_call.return"
retstr = "N/A"
}
/*********************************************
* Probe points on RPC server interface *
********************************************/
probe sunrpc.svc.entry =
sunrpc.svc.register,
sunrpc.svc.create,
sunrpc.svc.destroy,
sunrpc.svc.process,
sunrpc.svc.authorise,
sunrpc.svc.recv,
sunrpc.svc.send,
sunrpc.svc.drop
{}
probe sunrpc.svc.return =
sunrpc.svc.register.return,
sunrpc.svc.create.return,
sunrpc.svc.destroy.return,
sunrpc.svc.process.return,
sunrpc.svc.authorise.return,
sunrpc.svc.recv.return,
sunrpc.svc.send.return,
sunrpc.svc.drop.return
{}
/**
* probe sunrpc.svc.register - Register an RPC service with the local portmapper
*
* @sv_name: the service name
* @progname: the name of the program
* @prog: the number of the program
* @prot: the IP protocol number
* @port: the port number
*
* If @proto and @port are both 0, then unregister a service.
*/
probe sunrpc.svc.register = kernel.function("svc_register") !,
module("sunrpc").function("svc_register")
{
sv_name = kernel_string($serv->sv_name)
progname = kernel_string($serv->sv_program->pg_name)
prog = $serv->sv_program->pg_prog
prot = $proto
port = $port
name = "sunrpc.svc.register"
argstr = sprintf("%s %s %d %d", sv_name, progname, prot, port)
}
probe sunrpc.svc.register.return = kernel.function("svc_register").return !,
module("sunrpc").function("svc_register").return
{
name = "sunrpc.svc.register.return"
retstr = return_str(1, $return)
}
/**
* probe sunrpc.svc.create - Create an RPC service
*
* @progname: the name of the program
* @prog: the number of the program
* @pg_nvers: the number of supported versions
* @bufsize: the buffer size
*/
probe sunrpc.svc.create = kernel.function("svc_create") !,
module("sunrpc").function("svc_create")
{
progname = kernel_string($prog->pg_name)
prog = $prog->pg_prog
pg_nvers = $prog->pg_nvers
bufsize = $bufsize
name = "sunrpc.svc.create"
argstr = sprintf("%s %d %d %d", progname, prog, pg_nvers, bufsize)
}
probe sunrpc.svc.create.return = kernel.function("svc_create").return !,
module("sunrpc").function("svc_create").return
{
name = "sunrpc.svc.create.return"
retstr = return_str(2, $return)
}
/**
* probe sunrpc.svc.destroy - Destroy an RPC service
*
* @sv_name: the service name
* @sv_progname: the name of the program
* @sv_prog: the number of the program
* @sv_nrthreads:the number of concurrent threads
* @netcnt: the count of received RPC requests
* @nettcpconn: the count of accepted TCP connections
* @rpccnt: the count of valid RPC requests
* @rpcbadfmt: the count of requests dropped for bad formats
* @rpcbadauth: the count of requests drooped for authentication failure
*/
probe sunrpc.svc.destroy = kernel.function("svc_destroy") !,
module("sunrpc").function("svc_destroy")
{
sv_name = kernel_string($serv->sv_name) /* service name */
sv_progname = kernel_string($serv->sv_program->pg_name)
sv_prog = $serv->sv_program->pg_prog
sv_nrthreads = $serv->sv_nrthreads
/* RPC statistics */
netcnt = $serv->sv_stats->netcnt
netcpconn = $serv->sv_stats->nettcpconn
rpccnt = $serv->sv_stats->rpccnt
rpcbadfmt = $serv->sv_stats->rpcbadfmt
rpcbadauth = $serv->sv_stats->rpcbadauth
name = "sunrpc.svc.destroy"
argstr = sprintf("%s %d %d", sv_name, sv_prog, sv_nrthreads)
}
probe sunrpc.svc.destroy.return = kernel.function("svc_destroy").return !,
module("sunrpc").function("svc_destroy").return
{
name = "sunrpc.svc.destroy.return"
retstr = "N/A"
}
/**
* probe sunrpc.svc.process - Process an RPC request
*
* @sv_name: the service name
* @sv_prog: the number of the program
* @sv_nrthreads:the number of concurrent threads
* @peer_ip: the peer address where the request is from
* @rq_xid: the transmission id in the request
* @rq_prog: the program number in the request
* @rq_vers: the program version in the request
* @rq_proc: the procedure number in the request
* @rq_prot: the IP protocol of the reqeust
*/
probe sunrpc.svc.process = kernel.function("svc_process") !,
module("sunrpc").function("svc_process")
{
if (! @defined($serv)) {
sv_name = kernel_string($rqstp->rq_server->sv_name)
sv_prog = $rqstp->rq_server->sv_program->pg_prog
sv_nrthreads = $rqstp->rq_server->sv_nrthreads
}
else {
sv_name = kernel_string($serv->sv_name) /* service name */
sv_prog = $serv->sv_program->pg_prog
sv_nrthreads = $serv->sv_nrthreads
}
peer_ip = addr_from_rqst($rqstp)
rq_xid = $rqstp->rq_xid
rq_prog = $rqstp->rq_prog
rq_vers = $rqstp->rq_vers
rq_proc = $rqstp->rq_proc
rq_prot = $rqstp->rq_prot
name = "sunrpc.svc.process"
argstr = sprintf("%s %d %d %d %d %d %d", sv_name, sv_prog, peer_ip,
rq_xid, rq_prog, rq_vers, rq_proc)
}
probe sunrpc.svc.process.return = kernel.function("svc_process").return !,
module("sunrpc").function("svc_process").return
{
name = "sunrpc.svc.process.return"
retstr = return_str(1, $return)
}
/*
* probe sunrpc.svc.authorise - An RPC request is to be authorised
*
* @sv_name: the service name
* @peer_ip: the peer address where the request is from
* @rq_xid: the transmission id in the request
* @rq_prog: the program number in the request
* @rq_vers: the program version in the request
* @rq_proc: the procedure number in the request
* @rq_prot: the IP protocol of the reqeust
*/
probe sunrpc.svc.authorise = kernel.function("svc_authorise") !,
module("sunrpc").function("svc_authorise")
{
sv_name = kernel_string($rqstp->rq_server->sv_name)
peer_ip = addr_from_rqst($rqstp)
rq_xid = $rqstp->rq_xid
rq_prog = $rqstp->rq_prog
rq_vers = $rqstp->rq_vers
rq_proc = $rqstp->rq_proc
rq_prot = $rqstp->rq_prot
name = "sunrpc.svc.authorise"
argstr = sprintf("%d %d %d %d %d %d", peer_ip, rq_xid, rq_prog,
rq_vers, rq_proc, rq_prot)
}
probe sunrpc.svc.authorise.return = kernel.function("svc_authorise").return !,
module("sunrpc").function("svc_authorise").return
{
name = "sunrpc.svc.authorise.return"
retstr = return_str(1, $return)
}
/**
* probe sunrpc.svc.recv - Listen for the next RPC request on any socket
*
* @sv_name: the service name
* @sv_prog: the number of the program
* @sv_nrthreads:the number of concurrent threads
* @timeout: the timeout of waiting for data
*/
probe sunrpc.svc.recv = kernel.function("svc_recv") !,
module("sunrpc").function("svc_recv")
{
if (! @defined($serv)) {
sv_name = kernel_string($rqstp->rq_server->sv_name)
sv_prog = $rqstp->rq_server->sv_program->pg_prog
sv_nrthreads = $rqstp->rq_server->sv_nrthreads
}
else {
sv_name = kernel_string($serv->sv_name)
sv_prog = $serv->sv_program->pg_prog
sv_nrthreads = $serv->sv_nrthreads
}
timeout = $timeout
name = "sunrpc.svc.recv"
argstr = sprintf("%s %d", sv_name, timeout)
}
probe sunrpc.svc.recv.return = kernel.function("svc_recv").return !,
module("sunrpc").function("svc_recv").return
{
name = "sunrpc.svc.recv.return"
retstr = return_str(1, $return)
}
/**
* probe sunrpc.svc.send - Return reply to RPC client
*
* @sv_name: the service name
* @peer_ip: the peer address where the request is from
* @rq_xid: the transmission id in the request
* @rq_prog: the program number in the request
* @rq_vers: the program version in the request
* @rq_proc: the procedure number in the request
* @rq_prot: the IP protocol of the reqeust
*/
probe sunrpc.svc.send = kernel.function("svc_send") !,
module("sunrpc").function("svc_send")
{
sv_name = kernel_string($rqstp->rq_server->sv_name)
peer_ip = addr_from_rqst($rqstp)
rq_xid = $rqstp->rq_xid
rq_prog = $rqstp->rq_prog
rq_vers = $rqstp->rq_vers
rq_proc = $rqstp->rq_proc
rq_prot = $rqstp->rq_prot
name = "sunrpc.svc.send"
argstr = sprintf("%s %d %d %d %d %d %d", sv_name, peer_ip,
rq_xid, rq_prog, rq_vers, rq_proc, rq_prot)
}
probe sunrpc.svc.send.return = kernel.function("svc_send").return !,
module("sunrpc").function("svc_send").return
{
name = "sunrpc.svc.send.return"
retstr = return_str(1, $return)
}
/**
* probe sunrpc.svc.drop - Drop RPC request
*
* @sv_name: the service name
* @peer_ip: the peer address where the request is from
* @rq_xid: the transmission id in the request
* @rq_prog: the program number in the request
* @rq_vers: the program version in the request
* @rq_proc: the procedure number in the request
* @rq_prot: the IP protocol of the reqeust
*/
probe sunrpc.svc.drop = kernel.function("svc_drop") !,
module("sunrpc").function("svc_drop")
{
sv_name = kernel_string($rqstp->rq_server->sv_name)
peer_ip = addr_from_rqst($rqstp)
rq_xid = $rqstp->rq_xid
rq_prog = $rqstp->rq_prog
rq_vers = $rqstp->rq_vers
rq_proc = $rqstp->rq_proc
rq_prot = $rqstp->rq_prot
name = "sunrpc.svc.drop"
argstr = sprintf("%s %d %d %d %d %d %d", sv_name, peer_ip,
rq_xid, rq_prog, rq_vers, rq_proc, rq_prot)
}
probe sunrpc.svc.drop.return = kernel.function("svc_drop").return !,
module("sunrpc").function("svc_drop").return
{
name = "sunrpc.svc.drop.return"
retstr = "N/A"
}
/*******************************************************************
* Probe points on RPC scheduler *
******************************************************************/
probe sunrpc.sched.entry =
sunrpc.sched.new_task,
sunrpc.sched.release_task ?,
sunrpc.sched.execute,
sunrpc.sched.delay
{}
probe sunrpc.sched.return =
sunrpc.sched.new_task.return,
sunrpc.sched.release_task.return ?,
sunrpc.sched.execute.return,
sunrpc.sched.delay.return
{}
/**
* probe sunrpc.sched.new_task - Create new task for the specified client
*
* @xid: the transmission id in the RPC call
* @prog: the program number in the RPC call
* @vers: the program version in the RPC call
* @prot: the IP protocol in the RPC call
* @tk_flags: the flags of the task
*/
probe sunrpc.sched.new_task = kernel.function("rpc_new_task") !,
module("sunrpc").function("rpc_new_task")
{
if (@defined($setup_data)) {
xid = xid_from_clnt($setup_data->rpc_client)
prog = prog_from_clnt($setup_data->rpc_client)
vers = vers_from_clnt($setup_data->rpc_client)
prot = prot_from_clnt($setup_data->rpc_client)
flags = $setup_data->flags
}
else {
xid = xid_from_clnt($clnt)
prog = prog_from_clnt($clnt)
vers = vers_from_clnt($clnt)
prot = prot_from_clnt($clnt)
flags = $flags
}
name = "sunrpc.sched.new_task"
argstr = sprintf("%d %d %d %d %d", xid, prog, vers, prot, flags)
}
probe sunrpc.sched.new_task.return = kernel.function("rpc_new_task").return !,
module("sunrpc").function("rpc_new_task").return
{
name = "sunrpc.sched.new_task.return"
retstr = return_str(2, $return)
}
/**
* probe sunrpc.sched.release_task - Release all resources associated with a task
*
* @xid: the transmission id in the RPC call
* @prog: the program number in the RPC call
* @vers: the program version in the RPC call
* @prot: the IP protocol in the RPC call
* @tk_flags: the flags of the task
*
* rpc_release_task() function might not be found for a particular kernel.
* So, if we can't find it, just return '-1' for everything.
*/
/*
* The '.call' here is so that we're sure to grab the non-inline
* version of rpc_release_task() (assuming it exists). We can't find
* the return of rpc_release_task() if it is inline (PR 4413).
*/
probe sunrpc.sched.release_task = kernel.function("rpc_release_task").call !,
module("sunrpc").function("rpc_release_task").call !,
never
{
if (@defined($task)) {
xid = xid_from_clnt($task->tk_client)
prog = prog_from_clnt($task->tk_client)
vers = vers_from_clnt($task->tk_client)
prot = prot_from_clnt($task->tk_client)
tk_flags = $task->tk_flags
}
else {
xid = -1
prog = -1
vers = -1
prot = -1
tk_flags = -1
}
name = "sunrpc.sched.release_task"
argstr = sprintf("%d %d %d %d %d", xid, prog, vers, prot, tk_flags)
}
probe sunrpc.sched.release_task.return =
kernel.function("rpc_release_task").return !,
module("sunrpc").function("rpc_release_task").return ?
{
name = "sunrpc.sched.release_task.return"
retstr = "N/A"
}
/**
* probe sunrpc.sched.execute - Execute the RPC `scheduler'
*
* @xid: the transmission id in the RPC call
* @prog: the program number in the RPC call
* @vers: the program version in the RPC call
* @prot: the IP protocol in the RPC call
* @tk_pid: the debugging id of the task
* @tk_flags: the flags of the task
*/
probe sunrpc.sched.execute = kernel.function("__rpc_execute") !,
module("sunrpc").function("__rpc_execute")
{
xid = xid_from_clnt($task->tk_client)
prog = prog_from_clnt($task->tk_client)
vers = vers_from_clnt($task->tk_client)
prot = prot_from_clnt($task->tk_client)
tk_pid = $task->tk_pid
tk_flags = $task->tk_flags
name = "sunrpc.sched.execute"
argstr = sprintf("%d %d %d %d %d %d", xid, prog, vers, prot,
tk_pid, tk_flags)
}
probe sunrpc.sched.execute.return = kernel.function("__rpc_execute").return !,
module("sunrpc").function("__rpc_execute").return
{
name = "sunrpc.sched.execute.return"
# On kernels > 2.6.20, __rpc_execute() is a void function.
if (@defined($return)) {
retstr = return_str(1, $return)
}
else {
retstr = "N/A"
}
}
/**
* probe sunrpc.sched.delay - Delay an RPC task
*
* @xid: the transmission id in the RPC call
* @prog: the program number in the RPC call
* @vers: the program version in the RPC call
* @prot: the IP protocol in the RPC call
* @tk_pid: the debugging id of the task
* @tk_flags: the flags of the task
* @delay: the time delayed
*/
probe sunrpc.sched.delay = kernel.function("rpc_delay") !,
module("sunrpc").function("rpc_delay")
{
xid = xid_from_clnt($task->tk_client)
prog = prog_from_clnt($task->tk_client)
vers = vers_from_clnt($task->tk_client)
prot = prot_from_clnt($task->tk_client)
tk_pid = $task->tk_pid
tk_flags = $task->tk_flags
delay = $delay
name = "sunrpc.sched.delay"
argstr = sprintf("%d %d %d %d %d %d %d", xid, prog, vers,
prot, tk_pid, tk_flags, delay)
}
probe sunrpc.sched.delay.return = kernel.function("rpc_delay").return !,
module("sunrpc").function("rpc_delay").return
{
name = "sunrpc.sched.delay.return"
retstr = "N/A"
}
/******************************************************************
* Helper functions *
*****************************************************************/
function xid_from_clnt:long(clnt:long)
{
if (clnt == 0)
return 0
return @cast(clnt, "rpc_clnt", "kernel:sunrpc")->cl_xprt->xid
}
function prog_from_clnt:long(clnt:long)
{
if (clnt == 0)
return 0
return @choose_defined(@cast(clnt, "rpc_clnt", "kernel:sunrpc")->cl_prog,
@cast(clnt, "rpc_clnt", "kernel:sunrpc")->cl_pmap->pm_prog)
}
function vers_from_clnt:long(clnt:long)
{
if (clnt == 0)
return 0
return @choose_defined(@cast(clnt, "rpc_clnt", "kernel:sunrpc")->cl_vers,
@cast(clnt, "rpc_clnt", "kernel:sunrpc")->cl_pmap->pm_vers)
}
function prot_from_clnt:long(clnt:long)
{
if (clnt == 0)
return 0
return @cast(clnt, "rpc_clnt", "kernel:sunrpc")->cl_xprt->prot
}
function port_from_xprt:long(cl_xprt:long)
{
if (cl_xprt == 0)
return 0
addr = &@cast(cl_xprt, "rpc_xprt", "kernel:sunrpc")->addr
if (addr == 0)
return 0
/* In reality, 'cl_xprt->addr' is of 'sockaddr_storage' type
* (since 2.6.19). But when used, you cast it to what is
* inside that buffer. The 'struct sockaddr', 'struct
* sockaddr_in', and 'sockaddr_in6' structures all have a
* family type as their 1st member. */
if (@cast(addr, "sockaddr")->sa_family
== @const("AF_INET")) {
return ntohs(@cast(addr, "sockaddr_in")->sin_port)
}
else if (@cast(addr, "sockaddr")->sa_family
== @const("AF_INET6")) {
return ntohs(@cast(addr, "sockaddr_in6")->sin6_port)
}
return 0
}
function port_from_clnt:long(clnt:long)
{
if (clnt == 0)
return 0
cl_xprt = @cast(clnt, "rpc_clnt", "kernel:sunrpc")->cl_xprt
return port_from_xprt(cl_xprt)
}
function clones_from_clnt:long(clnt:long)
{
return (@defined(@cast(clnt, "rpc_clnt", "kernel:sunrpc")->cl_count)
? atomic_read(&@cast(clnt, "rpc_clnt", "kernel:sunrpc")->cl_count)
: -1)
}
function tasks_from_clnt:long(clnt:long)
{
return (@defined(@cast(clnt, "rpc_clnt", "kernel:sunrpc")->cl_users)
? atomic_read(&@cast(clnt, "rpc_clnt", "kernel:sunrpc")->cl_users)
: -1)
}
function proc_from_msg:long(msg:long)
{
if (msg == 0)
return 0
return @cast(msg, "rpc_message", "kernel:sunrpc")->rpc_proc->p_proc
}
function vers_from_prog:long(program:long, vers:long)
{
if (program
&& vers < @cast(program, "rpc_program", "kernel:sunrpc")->nrvers)
return @cast(program, "rpc_program", "kernel:sunrpc")->version[vers]->number
return 0
}
function addr_from_rqst:long(rqstp:long)
{
if (rqstp) {
addr = &@cast(rqstp, "svc_rqst", "kernel:nfs")->rq_addr
if (addr == 0)
return 0
/* In reality, 'rq_addr' is of 'sockaddr_storage' type
* (since 2.6.19). But when used, you cast it to what is
* inside that buffer. The 'struct sockaddr', 'struct
* sockaddr_in', and 'sockaddr_in6' structures all have a
* family type as their 1st member. */
if (@cast(addr, "sockaddr")->sa_family
== @const("AF_INET")) {
return @cast(addr, "sockaddr_in")->sin_addr->s_addr
}
else if (@cast(addr, "sockaddr")->sa_family
== @const("AF_INET6")) {
return &@cast(addr, "sockaddr_in6")->sin6_addr
}
}
return 0
}
function addr_from_rqst_str:string(rqstp:long)
{
if (rqstp == 0)
return "Null"
addr = &@cast(rqstp, "svc_rqst", "kernel:nfs")->rq_addr
if (addr == 0)
return "Null"
s_addr = addr_from_rqst(rqstp)
if (s_addr == 0)
return "Unsupported Address Family"
if (@cast(addr, "sockaddr_in")->sin_family
== @const("AF_INET")) {
return sprintf("%s:%d",
format_ipaddr(s_addr,
@const("AF_INET")),
@cast(addr, "sockaddr_in")->sin_port)
}
return sprintf("[%s]:%d",
format_ipaddr(s_addr,
@const("AF_INET6")),
@cast(addr, "sockaddr_in6")->sin6_port)
}
%{
#include <linux/un.h>
#include <linux/in.h>
#include <linux/in6.h>
%}
@__private30 function __rpc_format_servername:string(servername:long, address:long)
{
printf("__rpc_format_servername: %p\n", servername)
if (servername != 0)
return kernel_string(servername)
// If 'servername' is NULL, create a string representation of
// the passed-in address.
//
// Note that 'address' is a generic 'struct sockaddr'. When
// you use it you have to cast it to the more specific
// structure based on the family type.
if (@cast(address, "sockaddr")->sa_family == @const("AF_LOCAL")) {
return kernel_string(@cast(address, "sockaddr_un")->sun_path)
}
else if (@cast(address, "sockaddr")->sa_family == @const("AF_INET")) {
return format_ipaddr(&@cast(address, "sockaddr_in")->sin_addr->s_addr, @const("AF_INET"))
}
else if (@cast(address, "sockaddr")->sa_family == @const("AF_INET6")) {
return format_ipaddr(&@cast(address, "sockaddr_in6")->sin6_addr,
@const("AF_INET6"))
}
return "*unknown address family*"
}