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Commit | Line | Data |
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1da177e4 LT |
1 | /* |
2 | * linux/fs/lockd/svc.c | |
3 | * | |
4 | * This is the central lockd service. | |
5 | * | |
6 | * FIXME: Separate the lockd NFS server functionality from the lockd NFS | |
7 | * client functionality. Oh why didn't Sun create two separate | |
8 | * services in the first place? | |
9 | * | |
10 | * Authors: Olaf Kirch (okir@monad.swb.de) | |
11 | * | |
12 | * Copyright (C) 1995, 1996 Olaf Kirch <okir@monad.swb.de> | |
13 | */ | |
14 | ||
1da177e4 LT |
15 | #include <linux/module.h> |
16 | #include <linux/init.h> | |
17 | #include <linux/sysctl.h> | |
18 | #include <linux/moduleparam.h> | |
19 | ||
20 | #include <linux/sched.h> | |
21 | #include <linux/errno.h> | |
22 | #include <linux/in.h> | |
23 | #include <linux/uio.h> | |
24 | #include <linux/slab.h> | |
25 | #include <linux/smp.h> | |
26 | #include <linux/smp_lock.h> | |
353ab6e9 | 27 | #include <linux/mutex.h> |
1da177e4 LT |
28 | |
29 | #include <linux/sunrpc/types.h> | |
30 | #include <linux/sunrpc/stats.h> | |
31 | #include <linux/sunrpc/clnt.h> | |
32 | #include <linux/sunrpc/svc.h> | |
33 | #include <linux/sunrpc/svcsock.h> | |
24e36663 | 34 | #include <net/ip.h> |
1da177e4 LT |
35 | #include <linux/lockd/lockd.h> |
36 | #include <linux/nfs.h> | |
37 | ||
38 | #define NLMDBG_FACILITY NLMDBG_SVC | |
39 | #define LOCKD_BUFSIZE (1024 + NLMSVC_XDRSIZE) | |
40 | #define ALLOWED_SIGS (sigmask(SIGKILL)) | |
41 | ||
42 | static struct svc_program nlmsvc_program; | |
43 | ||
44 | struct nlmsvc_binding * nlmsvc_ops; | |
45 | EXPORT_SYMBOL(nlmsvc_ops); | |
46 | ||
353ab6e9 | 47 | static DEFINE_MUTEX(nlmsvc_mutex); |
1da177e4 LT |
48 | static unsigned int nlmsvc_users; |
49 | static pid_t nlmsvc_pid; | |
24e36663 | 50 | static struct svc_serv *nlmsvc_serv; |
1da177e4 LT |
51 | int nlmsvc_grace_period; |
52 | unsigned long nlmsvc_timeout; | |
53 | ||
353ab6e9 | 54 | static DECLARE_COMPLETION(lockd_start_done); |
1da177e4 LT |
55 | static DECLARE_WAIT_QUEUE_HEAD(lockd_exit); |
56 | ||
57 | /* | |
58 | * These can be set at insmod time (useful for NFS as root filesystem), | |
59 | * and also changed through the sysctl interface. -- Jamie Lokier, Aug 2003 | |
60 | */ | |
61 | static unsigned long nlm_grace_period; | |
62 | static unsigned long nlm_timeout = LOCKD_DFLT_TIMEO; | |
63 | static int nlm_udpport, nlm_tcpport; | |
abd1f500 | 64 | int nsm_use_hostnames = 0; |
1da177e4 LT |
65 | |
66 | /* | |
67 | * Constants needed for the sysctl interface. | |
68 | */ | |
69 | static const unsigned long nlm_grace_period_min = 0; | |
70 | static const unsigned long nlm_grace_period_max = 240; | |
71 | static const unsigned long nlm_timeout_min = 3; | |
72 | static const unsigned long nlm_timeout_max = 20; | |
73 | static const int nlm_port_min = 0, nlm_port_max = 65535; | |
74 | ||
75 | static struct ctl_table_header * nlm_sysctl_table; | |
76 | ||
77 | static unsigned long set_grace_period(void) | |
78 | { | |
79 | unsigned long grace_period; | |
80 | ||
81 | /* Note: nlm_timeout should always be nonzero */ | |
82 | if (nlm_grace_period) | |
83 | grace_period = ((nlm_grace_period + nlm_timeout - 1) | |
84 | / nlm_timeout) * nlm_timeout * HZ; | |
85 | else | |
86 | grace_period = nlm_timeout * 5 * HZ; | |
87 | nlmsvc_grace_period = 1; | |
88 | return grace_period + jiffies; | |
89 | } | |
90 | ||
91 | static inline void clear_grace_period(void) | |
92 | { | |
93 | nlmsvc_grace_period = 0; | |
94 | } | |
95 | ||
96 | /* | |
97 | * This is the lockd kernel thread | |
98 | */ | |
99 | static void | |
100 | lockd(struct svc_rqst *rqstp) | |
101 | { | |
1da177e4 LT |
102 | int err = 0; |
103 | unsigned long grace_period_expire; | |
104 | ||
105 | /* Lock module and set up kernel thread */ | |
106 | /* lockd_up is waiting for us to startup, so will | |
107 | * be holding a reference to this module, so it | |
108 | * is safe to just claim another reference | |
109 | */ | |
110 | __module_get(THIS_MODULE); | |
111 | lock_kernel(); | |
112 | ||
113 | /* | |
114 | * Let our maker know we're running. | |
115 | */ | |
116 | nlmsvc_pid = current->pid; | |
6fb2b47f | 117 | nlmsvc_serv = rqstp->rq_server; |
353ab6e9 | 118 | complete(&lockd_start_done); |
1da177e4 LT |
119 | |
120 | daemonize("lockd"); | |
121 | ||
122 | /* Process request with signals blocked, but allow SIGKILL. */ | |
123 | allow_signal(SIGKILL); | |
124 | ||
125 | /* kick rpciod */ | |
126 | rpciod_up(); | |
127 | ||
128 | dprintk("NFS locking service started (ver " LOCKD_VERSION ").\n"); | |
129 | ||
130 | if (!nlm_timeout) | |
131 | nlm_timeout = LOCKD_DFLT_TIMEO; | |
132 | nlmsvc_timeout = nlm_timeout * HZ; | |
133 | ||
134 | grace_period_expire = set_grace_period(); | |
135 | ||
136 | /* | |
137 | * The main request loop. We don't terminate until the last | |
138 | * NFS mount or NFS daemon has gone away, and we've been sent a | |
139 | * signal, or else another process has taken over our job. | |
140 | */ | |
141 | while ((nlmsvc_users || !signalled()) && nlmsvc_pid == current->pid) { | |
142 | long timeout = MAX_SCHEDULE_TIMEOUT; | |
143 | ||
144 | if (signalled()) { | |
145 | flush_signals(current); | |
146 | if (nlmsvc_ops) { | |
147 | nlmsvc_invalidate_all(); | |
148 | grace_period_expire = set_grace_period(); | |
149 | } | |
150 | } | |
151 | ||
152 | /* | |
153 | * Retry any blocked locks that have been notified by | |
154 | * the VFS. Don't do this during grace period. | |
155 | * (Theoretically, there shouldn't even be blocked locks | |
156 | * during grace period). | |
157 | */ | |
158 | if (!nlmsvc_grace_period) { | |
159 | timeout = nlmsvc_retry_blocked(); | |
160 | } else if (time_before(grace_period_expire, jiffies)) | |
161 | clear_grace_period(); | |
162 | ||
163 | /* | |
164 | * Find a socket with data available and call its | |
165 | * recvfrom routine. | |
166 | */ | |
6fb2b47f | 167 | err = svc_recv(rqstp, timeout); |
1da177e4 LT |
168 | if (err == -EAGAIN || err == -EINTR) |
169 | continue; | |
170 | if (err < 0) { | |
171 | printk(KERN_WARNING | |
172 | "lockd: terminating on error %d\n", | |
173 | -err); | |
174 | break; | |
175 | } | |
176 | ||
177 | dprintk("lockd: request from %08x\n", | |
178 | (unsigned)ntohl(rqstp->rq_addr.sin_addr.s_addr)); | |
179 | ||
6fb2b47f | 180 | svc_process(rqstp); |
1da177e4 LT |
181 | |
182 | } | |
183 | ||
2bd61579 TM |
184 | flush_signals(current); |
185 | ||
1da177e4 LT |
186 | /* |
187 | * Check whether there's a new lockd process before | |
188 | * shutting down the hosts and clearing the slot. | |
189 | */ | |
190 | if (!nlmsvc_pid || current->pid == nlmsvc_pid) { | |
191 | if (nlmsvc_ops) | |
192 | nlmsvc_invalidate_all(); | |
193 | nlm_shutdown_hosts(); | |
194 | nlmsvc_pid = 0; | |
24e36663 | 195 | nlmsvc_serv = NULL; |
1da177e4 LT |
196 | } else |
197 | printk(KERN_DEBUG | |
198 | "lockd: new process, skipping host shutdown\n"); | |
199 | wake_up(&lockd_exit); | |
46be925f | 200 | |
1da177e4 LT |
201 | /* Exit the RPC thread */ |
202 | svc_exit_thread(rqstp); | |
203 | ||
204 | /* release rpciod */ | |
205 | rpciod_down(); | |
206 | ||
207 | /* Release module */ | |
208 | unlock_kernel(); | |
209 | module_put_and_exit(0); | |
210 | } | |
211 | ||
24e36663 N |
212 | |
213 | static int find_socket(struct svc_serv *serv, int proto) | |
214 | { | |
215 | struct svc_sock *svsk; | |
216 | int found = 0; | |
217 | list_for_each_entry(svsk, &serv->sv_permsocks, sk_list) | |
218 | if (svsk->sk_sk->sk_protocol == proto) { | |
219 | found = 1; | |
220 | break; | |
221 | } | |
222 | return found; | |
223 | } | |
224 | ||
225 | static int make_socks(struct svc_serv *serv, int proto) | |
226 | { | |
227 | /* Make any sockets that are needed but not present. | |
228 | * If nlm_udpport or nlm_tcpport were set as module | |
229 | * options, make those sockets unconditionally | |
230 | */ | |
7dcf91ec | 231 | static int warned; |
24e36663 N |
232 | int err = 0; |
233 | if (proto == IPPROTO_UDP || nlm_udpport) | |
234 | if (!find_socket(serv, IPPROTO_UDP)) | |
235 | err = svc_makesock(serv, IPPROTO_UDP, nlm_udpport); | |
7dcf91ec | 236 | if (err == 0 && (proto == IPPROTO_TCP || nlm_tcpport)) |
24e36663 N |
237 | if (!find_socket(serv, IPPROTO_TCP)) |
238 | err= svc_makesock(serv, IPPROTO_TCP, nlm_tcpport); | |
7dcf91ec N |
239 | if (!err) |
240 | warned = 0; | |
241 | else if (warned++ == 0) | |
242 | printk(KERN_WARNING | |
243 | "lockd_up: makesock failed, error=%d\n", err); | |
24e36663 N |
244 | return err; |
245 | } | |
246 | ||
1da177e4 LT |
247 | /* |
248 | * Bring up the lockd process if it's not already up. | |
249 | */ | |
250 | int | |
24e36663 | 251 | lockd_up(int proto) /* Maybe add a 'family' option when IPv6 is supported ?? */ |
1da177e4 | 252 | { |
1da177e4 LT |
253 | struct svc_serv * serv; |
254 | int error = 0; | |
255 | ||
353ab6e9 | 256 | mutex_lock(&nlmsvc_mutex); |
1da177e4 LT |
257 | /* |
258 | * Check whether we're already up and running. | |
259 | */ | |
24e36663 | 260 | if (nlmsvc_pid) { |
4a3ae42d N |
261 | if (proto) |
262 | error = make_socks(nlmsvc_serv, proto); | |
1da177e4 | 263 | goto out; |
24e36663 | 264 | } |
1da177e4 LT |
265 | |
266 | /* | |
267 | * Sanity check: if there's no pid, | |
268 | * we should be the first user ... | |
269 | */ | |
4a3ae42d | 270 | if (nlmsvc_users) |
1da177e4 LT |
271 | printk(KERN_WARNING |
272 | "lockd_up: no pid, %d users??\n", nlmsvc_users); | |
273 | ||
274 | error = -ENOMEM; | |
bc591ccf | 275 | serv = svc_create(&nlmsvc_program, LOCKD_BUFSIZE, NULL); |
1da177e4 LT |
276 | if (!serv) { |
277 | printk(KERN_WARNING "lockd_up: create service failed\n"); | |
278 | goto out; | |
279 | } | |
280 | ||
7dcf91ec | 281 | if ((error = make_socks(serv, proto)) < 0) |
1da177e4 | 282 | goto destroy_and_out; |
1da177e4 LT |
283 | |
284 | /* | |
285 | * Create the kernel thread and wait for it to start. | |
286 | */ | |
287 | error = svc_create_thread(lockd, serv); | |
288 | if (error) { | |
289 | printk(KERN_WARNING | |
290 | "lockd_up: create thread failed, error=%d\n", error); | |
291 | goto destroy_and_out; | |
292 | } | |
353ab6e9 | 293 | wait_for_completion(&lockd_start_done); |
1da177e4 LT |
294 | |
295 | /* | |
296 | * Note: svc_serv structures have an initial use count of 1, | |
297 | * so we exit through here on both success and failure. | |
298 | */ | |
299 | destroy_and_out: | |
300 | svc_destroy(serv); | |
301 | out: | |
4a3ae42d N |
302 | if (!error) |
303 | nlmsvc_users++; | |
353ab6e9 | 304 | mutex_unlock(&nlmsvc_mutex); |
1da177e4 LT |
305 | return error; |
306 | } | |
307 | EXPORT_SYMBOL(lockd_up); | |
308 | ||
309 | /* | |
310 | * Decrement the user count and bring down lockd if we're the last. | |
311 | */ | |
312 | void | |
313 | lockd_down(void) | |
314 | { | |
315 | static int warned; | |
316 | ||
353ab6e9 | 317 | mutex_lock(&nlmsvc_mutex); |
1da177e4 LT |
318 | if (nlmsvc_users) { |
319 | if (--nlmsvc_users) | |
320 | goto out; | |
321 | } else | |
322 | printk(KERN_WARNING "lockd_down: no users! pid=%d\n", nlmsvc_pid); | |
323 | ||
324 | if (!nlmsvc_pid) { | |
325 | if (warned++ == 0) | |
326 | printk(KERN_WARNING "lockd_down: no lockd running.\n"); | |
327 | goto out; | |
328 | } | |
329 | warned = 0; | |
330 | ||
331 | kill_proc(nlmsvc_pid, SIGKILL, 1); | |
332 | /* | |
333 | * Wait for the lockd process to exit, but since we're holding | |
334 | * the lockd semaphore, we can't wait around forever ... | |
335 | */ | |
336 | clear_thread_flag(TIF_SIGPENDING); | |
337 | interruptible_sleep_on_timeout(&lockd_exit, HZ); | |
338 | if (nlmsvc_pid) { | |
339 | printk(KERN_WARNING | |
340 | "lockd_down: lockd failed to exit, clearing pid\n"); | |
341 | nlmsvc_pid = 0; | |
342 | } | |
343 | spin_lock_irq(¤t->sighand->siglock); | |
344 | recalc_sigpending(); | |
345 | spin_unlock_irq(¤t->sighand->siglock); | |
346 | out: | |
353ab6e9 | 347 | mutex_unlock(&nlmsvc_mutex); |
1da177e4 LT |
348 | } |
349 | EXPORT_SYMBOL(lockd_down); | |
350 | ||
351 | /* | |
352 | * Sysctl parameters (same as module parameters, different interface). | |
353 | */ | |
354 | ||
355 | /* Something that isn't CTL_ANY, CTL_NONE or a value that may clash. */ | |
356 | #define CTL_UNNUMBERED -2 | |
357 | ||
358 | static ctl_table nlm_sysctls[] = { | |
359 | { | |
360 | .ctl_name = CTL_UNNUMBERED, | |
361 | .procname = "nlm_grace_period", | |
362 | .data = &nlm_grace_period, | |
7ee91ec1 | 363 | .maxlen = sizeof(unsigned long), |
1da177e4 LT |
364 | .mode = 0644, |
365 | .proc_handler = &proc_doulongvec_minmax, | |
366 | .extra1 = (unsigned long *) &nlm_grace_period_min, | |
367 | .extra2 = (unsigned long *) &nlm_grace_period_max, | |
368 | }, | |
369 | { | |
370 | .ctl_name = CTL_UNNUMBERED, | |
371 | .procname = "nlm_timeout", | |
372 | .data = &nlm_timeout, | |
7ee91ec1 | 373 | .maxlen = sizeof(unsigned long), |
1da177e4 LT |
374 | .mode = 0644, |
375 | .proc_handler = &proc_doulongvec_minmax, | |
376 | .extra1 = (unsigned long *) &nlm_timeout_min, | |
377 | .extra2 = (unsigned long *) &nlm_timeout_max, | |
378 | }, | |
379 | { | |
380 | .ctl_name = CTL_UNNUMBERED, | |
381 | .procname = "nlm_udpport", | |
382 | .data = &nlm_udpport, | |
383 | .maxlen = sizeof(int), | |
384 | .mode = 0644, | |
385 | .proc_handler = &proc_dointvec_minmax, | |
386 | .extra1 = (int *) &nlm_port_min, | |
387 | .extra2 = (int *) &nlm_port_max, | |
388 | }, | |
389 | { | |
390 | .ctl_name = CTL_UNNUMBERED, | |
391 | .procname = "nlm_tcpport", | |
392 | .data = &nlm_tcpport, | |
393 | .maxlen = sizeof(int), | |
394 | .mode = 0644, | |
395 | .proc_handler = &proc_dointvec_minmax, | |
396 | .extra1 = (int *) &nlm_port_min, | |
397 | .extra2 = (int *) &nlm_port_max, | |
398 | }, | |
abd1f500 OK |
399 | { |
400 | .ctl_name = CTL_UNNUMBERED, | |
401 | .procname = "nsm_use_hostnames", | |
402 | .data = &nsm_use_hostnames, | |
403 | .maxlen = sizeof(int), | |
404 | .mode = 0644, | |
405 | .proc_handler = &proc_dointvec, | |
406 | }, | |
1da177e4 LT |
407 | { .ctl_name = 0 } |
408 | }; | |
409 | ||
410 | static ctl_table nlm_sysctl_dir[] = { | |
411 | { | |
412 | .ctl_name = CTL_UNNUMBERED, | |
413 | .procname = "nfs", | |
414 | .mode = 0555, | |
415 | .child = nlm_sysctls, | |
416 | }, | |
417 | { .ctl_name = 0 } | |
418 | }; | |
419 | ||
420 | static ctl_table nlm_sysctl_root[] = { | |
421 | { | |
422 | .ctl_name = CTL_FS, | |
423 | .procname = "fs", | |
424 | .mode = 0555, | |
425 | .child = nlm_sysctl_dir, | |
426 | }, | |
427 | { .ctl_name = 0 } | |
428 | }; | |
429 | ||
430 | /* | |
431 | * Module (and driverfs) parameters. | |
432 | */ | |
433 | ||
434 | #define param_set_min_max(name, type, which_strtol, min, max) \ | |
435 | static int param_set_##name(const char *val, struct kernel_param *kp) \ | |
436 | { \ | |
437 | char *endp; \ | |
438 | __typeof__(type) num = which_strtol(val, &endp, 0); \ | |
439 | if (endp == val || *endp || num < (min) || num > (max)) \ | |
440 | return -EINVAL; \ | |
441 | *((int *) kp->arg) = num; \ | |
442 | return 0; \ | |
443 | } | |
444 | ||
445 | static inline int is_callback(u32 proc) | |
446 | { | |
447 | return proc == NLMPROC_GRANTED | |
448 | || proc == NLMPROC_GRANTED_MSG | |
449 | || proc == NLMPROC_TEST_RES | |
450 | || proc == NLMPROC_LOCK_RES | |
451 | || proc == NLMPROC_CANCEL_RES | |
452 | || proc == NLMPROC_UNLOCK_RES | |
453 | || proc == NLMPROC_NSM_NOTIFY; | |
454 | } | |
455 | ||
456 | ||
457 | static int lockd_authenticate(struct svc_rqst *rqstp) | |
458 | { | |
459 | rqstp->rq_client = NULL; | |
460 | switch (rqstp->rq_authop->flavour) { | |
461 | case RPC_AUTH_NULL: | |
462 | case RPC_AUTH_UNIX: | |
463 | if (rqstp->rq_proc == 0) | |
464 | return SVC_OK; | |
465 | if (is_callback(rqstp->rq_proc)) { | |
466 | /* Leave it to individual procedures to | |
467 | * call nlmsvc_lookup_host(rqstp) | |
468 | */ | |
469 | return SVC_OK; | |
470 | } | |
471 | return svc_set_client(rqstp); | |
472 | } | |
473 | return SVC_DENIED; | |
474 | } | |
475 | ||
476 | ||
477 | param_set_min_max(port, int, simple_strtol, 0, 65535) | |
478 | param_set_min_max(grace_period, unsigned long, simple_strtoul, | |
479 | nlm_grace_period_min, nlm_grace_period_max) | |
480 | param_set_min_max(timeout, unsigned long, simple_strtoul, | |
481 | nlm_timeout_min, nlm_timeout_max) | |
482 | ||
483 | MODULE_AUTHOR("Olaf Kirch <okir@monad.swb.de>"); | |
484 | MODULE_DESCRIPTION("NFS file locking service version " LOCKD_VERSION "."); | |
485 | MODULE_LICENSE("GPL"); | |
486 | ||
487 | module_param_call(nlm_grace_period, param_set_grace_period, param_get_ulong, | |
488 | &nlm_grace_period, 0644); | |
489 | module_param_call(nlm_timeout, param_set_timeout, param_get_ulong, | |
490 | &nlm_timeout, 0644); | |
491 | module_param_call(nlm_udpport, param_set_port, param_get_int, | |
492 | &nlm_udpport, 0644); | |
493 | module_param_call(nlm_tcpport, param_set_port, param_get_int, | |
494 | &nlm_tcpport, 0644); | |
abd1f500 | 495 | module_param(nsm_use_hostnames, bool, 0644); |
1da177e4 LT |
496 | |
497 | /* | |
498 | * Initialising and terminating the module. | |
499 | */ | |
500 | ||
501 | static int __init init_nlm(void) | |
502 | { | |
503 | nlm_sysctl_table = register_sysctl_table(nlm_sysctl_root, 0); | |
504 | return nlm_sysctl_table ? 0 : -ENOMEM; | |
505 | } | |
506 | ||
507 | static void __exit exit_nlm(void) | |
508 | { | |
509 | /* FIXME: delete all NLM clients */ | |
510 | nlm_shutdown_hosts(); | |
511 | unregister_sysctl_table(nlm_sysctl_table); | |
512 | } | |
513 | ||
514 | module_init(init_nlm); | |
515 | module_exit(exit_nlm); | |
516 | ||
517 | /* | |
518 | * Define NLM program and procedures | |
519 | */ | |
520 | static struct svc_version nlmsvc_version1 = { | |
521 | .vs_vers = 1, | |
522 | .vs_nproc = 17, | |
523 | .vs_proc = nlmsvc_procedures, | |
524 | .vs_xdrsize = NLMSVC_XDRSIZE, | |
525 | }; | |
526 | static struct svc_version nlmsvc_version3 = { | |
527 | .vs_vers = 3, | |
528 | .vs_nproc = 24, | |
529 | .vs_proc = nlmsvc_procedures, | |
530 | .vs_xdrsize = NLMSVC_XDRSIZE, | |
531 | }; | |
532 | #ifdef CONFIG_LOCKD_V4 | |
533 | static struct svc_version nlmsvc_version4 = { | |
534 | .vs_vers = 4, | |
535 | .vs_nproc = 24, | |
536 | .vs_proc = nlmsvc_procedures4, | |
537 | .vs_xdrsize = NLMSVC_XDRSIZE, | |
538 | }; | |
539 | #endif | |
540 | static struct svc_version * nlmsvc_version[] = { | |
541 | [1] = &nlmsvc_version1, | |
542 | [3] = &nlmsvc_version3, | |
543 | #ifdef CONFIG_LOCKD_V4 | |
544 | [4] = &nlmsvc_version4, | |
545 | #endif | |
546 | }; | |
547 | ||
548 | static struct svc_stat nlmsvc_stats; | |
549 | ||
e8c96f8c | 550 | #define NLM_NRVERS ARRAY_SIZE(nlmsvc_version) |
1da177e4 LT |
551 | static struct svc_program nlmsvc_program = { |
552 | .pg_prog = NLM_PROGRAM, /* program number */ | |
553 | .pg_nvers = NLM_NRVERS, /* number of entries in nlmsvc_version */ | |
554 | .pg_vers = nlmsvc_version, /* version table */ | |
555 | .pg_name = "lockd", /* service name */ | |
556 | .pg_class = "nfsd", /* share authentication with nfsd */ | |
557 | .pg_stats = &nlmsvc_stats, /* stats table */ | |
558 | .pg_authenticate = &lockd_authenticate /* export authentication */ | |
559 | }; |