linux-stable/fs/lockd/svcproc.c
Chuck Lever 2289e87b59 SUNRPC: Make trace_svc_process() display the RPC procedure symbolically
The next few patches will employ these strings to help make server-
side trace logs more human-readable. A similar technique is already
in use in kernel RPC client code.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
2021-01-25 09:36:23 -05:00

766 lines
20 KiB
C

// SPDX-License-Identifier: GPL-2.0
/*
* linux/fs/lockd/svcproc.c
*
* Lockd server procedures. We don't implement the NLM_*_RES
* procedures because we don't use the async procedures.
*
* Copyright (C) 1996, Olaf Kirch <okir@monad.swb.de>
*/
#include <linux/types.h>
#include <linux/time.h>
#include <linux/lockd/lockd.h>
#include <linux/lockd/share.h>
#include <linux/sunrpc/svc_xprt.h>
#define NLMDBG_FACILITY NLMDBG_CLIENT
#ifdef CONFIG_LOCKD_V4
static __be32
cast_to_nlm(__be32 status, u32 vers)
{
/* Note: status is assumed to be in network byte order !!! */
if (vers != 4){
switch (status) {
case nlm_granted:
case nlm_lck_denied:
case nlm_lck_denied_nolocks:
case nlm_lck_blocked:
case nlm_lck_denied_grace_period:
case nlm_drop_reply:
break;
case nlm4_deadlock:
status = nlm_lck_denied;
break;
default:
status = nlm_lck_denied_nolocks;
}
}
return (status);
}
#define cast_status(status) (cast_to_nlm(status, rqstp->rq_vers))
#else
#define cast_status(status) (status)
#endif
/*
* Obtain client and file from arguments
*/
static __be32
nlmsvc_retrieve_args(struct svc_rqst *rqstp, struct nlm_args *argp,
struct nlm_host **hostp, struct nlm_file **filp)
{
struct nlm_host *host = NULL;
struct nlm_file *file = NULL;
struct nlm_lock *lock = &argp->lock;
__be32 error = 0;
/* nfsd callbacks must have been installed for this procedure */
if (!nlmsvc_ops)
return nlm_lck_denied_nolocks;
/* Obtain host handle */
if (!(host = nlmsvc_lookup_host(rqstp, lock->caller, lock->len))
|| (argp->monitor && nsm_monitor(host) < 0))
goto no_locks;
*hostp = host;
/* Obtain file pointer. Not used by FREE_ALL call. */
if (filp != NULL) {
error = cast_status(nlm_lookup_file(rqstp, &file, &lock->fh));
if (error != 0)
goto no_locks;
*filp = file;
/* Set up the missing parts of the file_lock structure */
lock->fl.fl_file = file->f_file;
lock->fl.fl_pid = current->tgid;
lock->fl.fl_lmops = &nlmsvc_lock_operations;
nlmsvc_locks_init_private(&lock->fl, host, (pid_t)lock->svid);
if (!lock->fl.fl_owner) {
/* lockowner allocation has failed */
nlmsvc_release_host(host);
return nlm_lck_denied_nolocks;
}
}
return 0;
no_locks:
nlmsvc_release_host(host);
if (error)
return error;
return nlm_lck_denied_nolocks;
}
/*
* NULL: Test for presence of service
*/
static __be32
nlmsvc_proc_null(struct svc_rqst *rqstp)
{
dprintk("lockd: NULL called\n");
return rpc_success;
}
/*
* TEST: Check for conflicting lock
*/
static __be32
__nlmsvc_proc_test(struct svc_rqst *rqstp, struct nlm_res *resp)
{
struct nlm_args *argp = rqstp->rq_argp;
struct nlm_host *host;
struct nlm_file *file;
__be32 rc = rpc_success;
dprintk("lockd: TEST called\n");
resp->cookie = argp->cookie;
/* Obtain client and file */
if ((resp->status = nlmsvc_retrieve_args(rqstp, argp, &host, &file)))
return resp->status == nlm_drop_reply ? rpc_drop_reply :rpc_success;
/* Now check for conflicting locks */
resp->status = cast_status(nlmsvc_testlock(rqstp, file, host, &argp->lock, &resp->lock, &resp->cookie));
if (resp->status == nlm_drop_reply)
rc = rpc_drop_reply;
else
dprintk("lockd: TEST status %d vers %d\n",
ntohl(resp->status), rqstp->rq_vers);
nlmsvc_release_lockowner(&argp->lock);
nlmsvc_release_host(host);
nlm_release_file(file);
return rc;
}
static __be32
nlmsvc_proc_test(struct svc_rqst *rqstp)
{
return __nlmsvc_proc_test(rqstp, rqstp->rq_resp);
}
static __be32
__nlmsvc_proc_lock(struct svc_rqst *rqstp, struct nlm_res *resp)
{
struct nlm_args *argp = rqstp->rq_argp;
struct nlm_host *host;
struct nlm_file *file;
__be32 rc = rpc_success;
dprintk("lockd: LOCK called\n");
resp->cookie = argp->cookie;
/* Obtain client and file */
if ((resp->status = nlmsvc_retrieve_args(rqstp, argp, &host, &file)))
return resp->status == nlm_drop_reply ? rpc_drop_reply :rpc_success;
#if 0
/* If supplied state doesn't match current state, we assume it's
* an old request that time-warped somehow. Any error return would
* do in this case because it's irrelevant anyway.
*
* NB: We don't retrieve the remote host's state yet.
*/
if (host->h_nsmstate && host->h_nsmstate != argp->state) {
resp->status = nlm_lck_denied_nolocks;
} else
#endif
/* Now try to lock the file */
resp->status = cast_status(nlmsvc_lock(rqstp, file, host, &argp->lock,
argp->block, &argp->cookie,
argp->reclaim));
if (resp->status == nlm_drop_reply)
rc = rpc_drop_reply;
else
dprintk("lockd: LOCK status %d\n", ntohl(resp->status));
nlmsvc_release_lockowner(&argp->lock);
nlmsvc_release_host(host);
nlm_release_file(file);
return rc;
}
static __be32
nlmsvc_proc_lock(struct svc_rqst *rqstp)
{
return __nlmsvc_proc_lock(rqstp, rqstp->rq_resp);
}
static __be32
__nlmsvc_proc_cancel(struct svc_rqst *rqstp, struct nlm_res *resp)
{
struct nlm_args *argp = rqstp->rq_argp;
struct nlm_host *host;
struct nlm_file *file;
struct net *net = SVC_NET(rqstp);
dprintk("lockd: CANCEL called\n");
resp->cookie = argp->cookie;
/* Don't accept requests during grace period */
if (locks_in_grace(net)) {
resp->status = nlm_lck_denied_grace_period;
return rpc_success;
}
/* Obtain client and file */
if ((resp->status = nlmsvc_retrieve_args(rqstp, argp, &host, &file)))
return resp->status == nlm_drop_reply ? rpc_drop_reply :rpc_success;
/* Try to cancel request. */
resp->status = cast_status(nlmsvc_cancel_blocked(net, file, &argp->lock));
dprintk("lockd: CANCEL status %d\n", ntohl(resp->status));
nlmsvc_release_lockowner(&argp->lock);
nlmsvc_release_host(host);
nlm_release_file(file);
return rpc_success;
}
static __be32
nlmsvc_proc_cancel(struct svc_rqst *rqstp)
{
return __nlmsvc_proc_cancel(rqstp, rqstp->rq_resp);
}
/*
* UNLOCK: release a lock
*/
static __be32
__nlmsvc_proc_unlock(struct svc_rqst *rqstp, struct nlm_res *resp)
{
struct nlm_args *argp = rqstp->rq_argp;
struct nlm_host *host;
struct nlm_file *file;
struct net *net = SVC_NET(rqstp);
dprintk("lockd: UNLOCK called\n");
resp->cookie = argp->cookie;
/* Don't accept new lock requests during grace period */
if (locks_in_grace(net)) {
resp->status = nlm_lck_denied_grace_period;
return rpc_success;
}
/* Obtain client and file */
if ((resp->status = nlmsvc_retrieve_args(rqstp, argp, &host, &file)))
return resp->status == nlm_drop_reply ? rpc_drop_reply :rpc_success;
/* Now try to remove the lock */
resp->status = cast_status(nlmsvc_unlock(net, file, &argp->lock));
dprintk("lockd: UNLOCK status %d\n", ntohl(resp->status));
nlmsvc_release_lockowner(&argp->lock);
nlmsvc_release_host(host);
nlm_release_file(file);
return rpc_success;
}
static __be32
nlmsvc_proc_unlock(struct svc_rqst *rqstp)
{
return __nlmsvc_proc_unlock(rqstp, rqstp->rq_resp);
}
/*
* GRANTED: A server calls us to tell that a process' lock request
* was granted
*/
static __be32
__nlmsvc_proc_granted(struct svc_rqst *rqstp, struct nlm_res *resp)
{
struct nlm_args *argp = rqstp->rq_argp;
resp->cookie = argp->cookie;
dprintk("lockd: GRANTED called\n");
resp->status = nlmclnt_grant(svc_addr(rqstp), &argp->lock);
dprintk("lockd: GRANTED status %d\n", ntohl(resp->status));
return rpc_success;
}
static __be32
nlmsvc_proc_granted(struct svc_rqst *rqstp)
{
return __nlmsvc_proc_granted(rqstp, rqstp->rq_resp);
}
/*
* This is the generic lockd callback for async RPC calls
*/
static void nlmsvc_callback_exit(struct rpc_task *task, void *data)
{
dprintk("lockd: %5u callback returned %d\n", task->tk_pid,
-task->tk_status);
}
void nlmsvc_release_call(struct nlm_rqst *call)
{
if (!refcount_dec_and_test(&call->a_count))
return;
nlmsvc_release_host(call->a_host);
kfree(call);
}
static void nlmsvc_callback_release(void *data)
{
nlmsvc_release_call(data);
}
static const struct rpc_call_ops nlmsvc_callback_ops = {
.rpc_call_done = nlmsvc_callback_exit,
.rpc_release = nlmsvc_callback_release,
};
/*
* `Async' versions of the above service routines. They aren't really,
* because we send the callback before the reply proper. I hope this
* doesn't break any clients.
*/
static __be32 nlmsvc_callback(struct svc_rqst *rqstp, u32 proc,
__be32 (*func)(struct svc_rqst *, struct nlm_res *))
{
struct nlm_args *argp = rqstp->rq_argp;
struct nlm_host *host;
struct nlm_rqst *call;
__be32 stat;
host = nlmsvc_lookup_host(rqstp,
argp->lock.caller,
argp->lock.len);
if (host == NULL)
return rpc_system_err;
call = nlm_alloc_call(host);
nlmsvc_release_host(host);
if (call == NULL)
return rpc_system_err;
stat = func(rqstp, &call->a_res);
if (stat != 0) {
nlmsvc_release_call(call);
return stat;
}
call->a_flags = RPC_TASK_ASYNC;
if (nlm_async_reply(call, proc, &nlmsvc_callback_ops) < 0)
return rpc_system_err;
return rpc_success;
}
static __be32 nlmsvc_proc_test_msg(struct svc_rqst *rqstp)
{
dprintk("lockd: TEST_MSG called\n");
return nlmsvc_callback(rqstp, NLMPROC_TEST_RES, __nlmsvc_proc_test);
}
static __be32 nlmsvc_proc_lock_msg(struct svc_rqst *rqstp)
{
dprintk("lockd: LOCK_MSG called\n");
return nlmsvc_callback(rqstp, NLMPROC_LOCK_RES, __nlmsvc_proc_lock);
}
static __be32 nlmsvc_proc_cancel_msg(struct svc_rqst *rqstp)
{
dprintk("lockd: CANCEL_MSG called\n");
return nlmsvc_callback(rqstp, NLMPROC_CANCEL_RES, __nlmsvc_proc_cancel);
}
static __be32
nlmsvc_proc_unlock_msg(struct svc_rqst *rqstp)
{
dprintk("lockd: UNLOCK_MSG called\n");
return nlmsvc_callback(rqstp, NLMPROC_UNLOCK_RES, __nlmsvc_proc_unlock);
}
static __be32
nlmsvc_proc_granted_msg(struct svc_rqst *rqstp)
{
dprintk("lockd: GRANTED_MSG called\n");
return nlmsvc_callback(rqstp, NLMPROC_GRANTED_RES, __nlmsvc_proc_granted);
}
/*
* SHARE: create a DOS share or alter existing share.
*/
static __be32
nlmsvc_proc_share(struct svc_rqst *rqstp)
{
struct nlm_args *argp = rqstp->rq_argp;
struct nlm_res *resp = rqstp->rq_resp;
struct nlm_host *host;
struct nlm_file *file;
dprintk("lockd: SHARE called\n");
resp->cookie = argp->cookie;
/* Don't accept new lock requests during grace period */
if (locks_in_grace(SVC_NET(rqstp)) && !argp->reclaim) {
resp->status = nlm_lck_denied_grace_period;
return rpc_success;
}
/* Obtain client and file */
if ((resp->status = nlmsvc_retrieve_args(rqstp, argp, &host, &file)))
return resp->status == nlm_drop_reply ? rpc_drop_reply :rpc_success;
/* Now try to create the share */
resp->status = cast_status(nlmsvc_share_file(host, file, argp));
dprintk("lockd: SHARE status %d\n", ntohl(resp->status));
nlmsvc_release_lockowner(&argp->lock);
nlmsvc_release_host(host);
nlm_release_file(file);
return rpc_success;
}
/*
* UNSHARE: Release a DOS share.
*/
static __be32
nlmsvc_proc_unshare(struct svc_rqst *rqstp)
{
struct nlm_args *argp = rqstp->rq_argp;
struct nlm_res *resp = rqstp->rq_resp;
struct nlm_host *host;
struct nlm_file *file;
dprintk("lockd: UNSHARE called\n");
resp->cookie = argp->cookie;
/* Don't accept requests during grace period */
if (locks_in_grace(SVC_NET(rqstp))) {
resp->status = nlm_lck_denied_grace_period;
return rpc_success;
}
/* Obtain client and file */
if ((resp->status = nlmsvc_retrieve_args(rqstp, argp, &host, &file)))
return resp->status == nlm_drop_reply ? rpc_drop_reply :rpc_success;
/* Now try to unshare the file */
resp->status = cast_status(nlmsvc_unshare_file(host, file, argp));
dprintk("lockd: UNSHARE status %d\n", ntohl(resp->status));
nlmsvc_release_lockowner(&argp->lock);
nlmsvc_release_host(host);
nlm_release_file(file);
return rpc_success;
}
/*
* NM_LOCK: Create an unmonitored lock
*/
static __be32
nlmsvc_proc_nm_lock(struct svc_rqst *rqstp)
{
struct nlm_args *argp = rqstp->rq_argp;
dprintk("lockd: NM_LOCK called\n");
argp->monitor = 0; /* just clean the monitor flag */
return nlmsvc_proc_lock(rqstp);
}
/*
* FREE_ALL: Release all locks and shares held by client
*/
static __be32
nlmsvc_proc_free_all(struct svc_rqst *rqstp)
{
struct nlm_args *argp = rqstp->rq_argp;
struct nlm_host *host;
/* Obtain client */
if (nlmsvc_retrieve_args(rqstp, argp, &host, NULL))
return rpc_success;
nlmsvc_free_host_resources(host);
nlmsvc_release_host(host);
return rpc_success;
}
/*
* SM_NOTIFY: private callback from statd (not part of official NLM proto)
*/
static __be32
nlmsvc_proc_sm_notify(struct svc_rqst *rqstp)
{
struct nlm_reboot *argp = rqstp->rq_argp;
dprintk("lockd: SM_NOTIFY called\n");
if (!nlm_privileged_requester(rqstp)) {
char buf[RPC_MAX_ADDRBUFLEN];
printk(KERN_WARNING "lockd: rejected NSM callback from %s\n",
svc_print_addr(rqstp, buf, sizeof(buf)));
return rpc_system_err;
}
nlm_host_rebooted(SVC_NET(rqstp), argp);
return rpc_success;
}
/*
* client sent a GRANTED_RES, let's remove the associated block
*/
static __be32
nlmsvc_proc_granted_res(struct svc_rqst *rqstp)
{
struct nlm_res *argp = rqstp->rq_argp;
if (!nlmsvc_ops)
return rpc_success;
dprintk("lockd: GRANTED_RES called\n");
nlmsvc_grant_reply(&argp->cookie, argp->status);
return rpc_success;
}
static __be32
nlmsvc_proc_unused(struct svc_rqst *rqstp)
{
return rpc_proc_unavail;
}
/*
* NLM Server procedures.
*/
struct nlm_void { int dummy; };
#define Ck (1+XDR_QUADLEN(NLM_MAXCOOKIELEN)) /* cookie */
#define St 1 /* status */
#define No (1+1024/4) /* Net Obj */
#define Rg 2 /* range - offset + size */
const struct svc_procedure nlmsvc_procedures[24] = {
[NLMPROC_NULL] = {
.pc_func = nlmsvc_proc_null,
.pc_decode = nlmsvc_decode_void,
.pc_encode = nlmsvc_encode_void,
.pc_argsize = sizeof(struct nlm_void),
.pc_ressize = sizeof(struct nlm_void),
.pc_xdrressize = St,
.pc_name = "NULL",
},
[NLMPROC_TEST] = {
.pc_func = nlmsvc_proc_test,
.pc_decode = nlmsvc_decode_testargs,
.pc_encode = nlmsvc_encode_testres,
.pc_argsize = sizeof(struct nlm_args),
.pc_ressize = sizeof(struct nlm_res),
.pc_xdrressize = Ck+St+2+No+Rg,
.pc_name = "TEST",
},
[NLMPROC_LOCK] = {
.pc_func = nlmsvc_proc_lock,
.pc_decode = nlmsvc_decode_lockargs,
.pc_encode = nlmsvc_encode_res,
.pc_argsize = sizeof(struct nlm_args),
.pc_ressize = sizeof(struct nlm_res),
.pc_xdrressize = Ck+St,
.pc_name = "LOCK",
},
[NLMPROC_CANCEL] = {
.pc_func = nlmsvc_proc_cancel,
.pc_decode = nlmsvc_decode_cancargs,
.pc_encode = nlmsvc_encode_res,
.pc_argsize = sizeof(struct nlm_args),
.pc_ressize = sizeof(struct nlm_res),
.pc_xdrressize = Ck+St,
.pc_name = "CANCEL",
},
[NLMPROC_UNLOCK] = {
.pc_func = nlmsvc_proc_unlock,
.pc_decode = nlmsvc_decode_unlockargs,
.pc_encode = nlmsvc_encode_res,
.pc_argsize = sizeof(struct nlm_args),
.pc_ressize = sizeof(struct nlm_res),
.pc_xdrressize = Ck+St,
.pc_name = "UNLOCK",
},
[NLMPROC_GRANTED] = {
.pc_func = nlmsvc_proc_granted,
.pc_decode = nlmsvc_decode_testargs,
.pc_encode = nlmsvc_encode_res,
.pc_argsize = sizeof(struct nlm_args),
.pc_ressize = sizeof(struct nlm_res),
.pc_xdrressize = Ck+St,
.pc_name = "GRANTED",
},
[NLMPROC_TEST_MSG] = {
.pc_func = nlmsvc_proc_test_msg,
.pc_decode = nlmsvc_decode_testargs,
.pc_encode = nlmsvc_encode_void,
.pc_argsize = sizeof(struct nlm_args),
.pc_ressize = sizeof(struct nlm_void),
.pc_xdrressize = St,
.pc_name = "TEST_MSG",
},
[NLMPROC_LOCK_MSG] = {
.pc_func = nlmsvc_proc_lock_msg,
.pc_decode = nlmsvc_decode_lockargs,
.pc_encode = nlmsvc_encode_void,
.pc_argsize = sizeof(struct nlm_args),
.pc_ressize = sizeof(struct nlm_void),
.pc_xdrressize = St,
.pc_name = "LOCK_MSG",
},
[NLMPROC_CANCEL_MSG] = {
.pc_func = nlmsvc_proc_cancel_msg,
.pc_decode = nlmsvc_decode_cancargs,
.pc_encode = nlmsvc_encode_void,
.pc_argsize = sizeof(struct nlm_args),
.pc_ressize = sizeof(struct nlm_void),
.pc_xdrressize = St,
.pc_name = "CANCEL_MSG",
},
[NLMPROC_UNLOCK_MSG] = {
.pc_func = nlmsvc_proc_unlock_msg,
.pc_decode = nlmsvc_decode_unlockargs,
.pc_encode = nlmsvc_encode_void,
.pc_argsize = sizeof(struct nlm_args),
.pc_ressize = sizeof(struct nlm_void),
.pc_xdrressize = St,
.pc_name = "UNLOCK_MSG",
},
[NLMPROC_GRANTED_MSG] = {
.pc_func = nlmsvc_proc_granted_msg,
.pc_decode = nlmsvc_decode_testargs,
.pc_encode = nlmsvc_encode_void,
.pc_argsize = sizeof(struct nlm_args),
.pc_ressize = sizeof(struct nlm_void),
.pc_xdrressize = St,
.pc_name = "GRANTED_MSG",
},
[NLMPROC_TEST_RES] = {
.pc_func = nlmsvc_proc_null,
.pc_decode = nlmsvc_decode_void,
.pc_encode = nlmsvc_encode_void,
.pc_argsize = sizeof(struct nlm_res),
.pc_ressize = sizeof(struct nlm_void),
.pc_xdrressize = St,
.pc_name = "TEST_RES",
},
[NLMPROC_LOCK_RES] = {
.pc_func = nlmsvc_proc_null,
.pc_decode = nlmsvc_decode_void,
.pc_encode = nlmsvc_encode_void,
.pc_argsize = sizeof(struct nlm_res),
.pc_ressize = sizeof(struct nlm_void),
.pc_xdrressize = St,
.pc_name = "LOCK_RES",
},
[NLMPROC_CANCEL_RES] = {
.pc_func = nlmsvc_proc_null,
.pc_decode = nlmsvc_decode_void,
.pc_encode = nlmsvc_encode_void,
.pc_argsize = sizeof(struct nlm_res),
.pc_ressize = sizeof(struct nlm_void),
.pc_xdrressize = St,
.pc_name = "CANCEL_RES",
},
[NLMPROC_UNLOCK_RES] = {
.pc_func = nlmsvc_proc_null,
.pc_decode = nlmsvc_decode_void,
.pc_encode = nlmsvc_encode_void,
.pc_argsize = sizeof(struct nlm_res),
.pc_ressize = sizeof(struct nlm_void),
.pc_xdrressize = St,
.pc_name = "UNLOCK_RES",
},
[NLMPROC_GRANTED_RES] = {
.pc_func = nlmsvc_proc_granted_res,
.pc_decode = nlmsvc_decode_res,
.pc_encode = nlmsvc_encode_void,
.pc_argsize = sizeof(struct nlm_res),
.pc_ressize = sizeof(struct nlm_void),
.pc_xdrressize = St,
.pc_name = "GRANTED_RES",
},
[NLMPROC_NSM_NOTIFY] = {
.pc_func = nlmsvc_proc_sm_notify,
.pc_decode = nlmsvc_decode_reboot,
.pc_encode = nlmsvc_encode_void,
.pc_argsize = sizeof(struct nlm_reboot),
.pc_ressize = sizeof(struct nlm_void),
.pc_xdrressize = St,
.pc_name = "SM_NOTIFY",
},
[17] = {
.pc_func = nlmsvc_proc_unused,
.pc_decode = nlmsvc_decode_void,
.pc_encode = nlmsvc_encode_void,
.pc_argsize = sizeof(struct nlm_void),
.pc_ressize = sizeof(struct nlm_void),
.pc_xdrressize = St,
.pc_name = "UNUSED",
},
[18] = {
.pc_func = nlmsvc_proc_unused,
.pc_decode = nlmsvc_decode_void,
.pc_encode = nlmsvc_encode_void,
.pc_argsize = sizeof(struct nlm_void),
.pc_ressize = sizeof(struct nlm_void),
.pc_xdrressize = St,
.pc_name = "UNUSED",
},
[19] = {
.pc_func = nlmsvc_proc_unused,
.pc_decode = nlmsvc_decode_void,
.pc_encode = nlmsvc_encode_void,
.pc_argsize = sizeof(struct nlm_void),
.pc_ressize = sizeof(struct nlm_void),
.pc_xdrressize = St,
.pc_name = "UNUSED",
},
[NLMPROC_SHARE] = {
.pc_func = nlmsvc_proc_share,
.pc_decode = nlmsvc_decode_shareargs,
.pc_encode = nlmsvc_encode_shareres,
.pc_argsize = sizeof(struct nlm_args),
.pc_ressize = sizeof(struct nlm_res),
.pc_xdrressize = Ck+St+1,
.pc_name = "SHARE",
},
[NLMPROC_UNSHARE] = {
.pc_func = nlmsvc_proc_unshare,
.pc_decode = nlmsvc_decode_shareargs,
.pc_encode = nlmsvc_encode_shareres,
.pc_argsize = sizeof(struct nlm_args),
.pc_ressize = sizeof(struct nlm_res),
.pc_xdrressize = Ck+St+1,
.pc_name = "UNSHARE",
},
[NLMPROC_NM_LOCK] = {
.pc_func = nlmsvc_proc_nm_lock,
.pc_decode = nlmsvc_decode_lockargs,
.pc_encode = nlmsvc_encode_res,
.pc_argsize = sizeof(struct nlm_args),
.pc_ressize = sizeof(struct nlm_res),
.pc_xdrressize = Ck+St,
.pc_name = "NM_LOCK",
},
[NLMPROC_FREE_ALL] = {
.pc_func = nlmsvc_proc_free_all,
.pc_decode = nlmsvc_decode_notify,
.pc_encode = nlmsvc_encode_void,
.pc_argsize = sizeof(struct nlm_args),
.pc_ressize = sizeof(struct nlm_void),
.pc_xdrressize = 0,
.pc_name = "FREE_ALL",
},
};