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-rw-r--r--fs/lockd/xdr4.c255
1 files changed, 0 insertions, 255 deletions
diff --git a/fs/lockd/xdr4.c b/fs/lockd/xdr4.c
index ad9dbbc9145d..dfa4789cd460 100644
--- a/fs/lockd/xdr4.c
+++ b/fs/lockd/xdr4.c
@@ -93,15 +93,6 @@ nlm4_decode_fh(__be32 *p, struct nfs_fh *f)
93 return p + XDR_QUADLEN(f->size); 93 return p + XDR_QUADLEN(f->size);
94} 94}
95 95
96static __be32 *
97nlm4_encode_fh(__be32 *p, struct nfs_fh *f)
98{
99 *p++ = htonl(f->size);
100 if (f->size) p[XDR_QUADLEN(f->size)-1] = 0; /* don't leak anything */
101 memcpy(p, f->data, f->size);
102 return p + XDR_QUADLEN(f->size);
103}
104
105/* 96/*
106 * Encode and decode owner handle 97 * Encode and decode owner handle
107 */ 98 */
@@ -112,12 +103,6 @@ nlm4_decode_oh(__be32 *p, struct xdr_netobj *oh)
112} 103}
113 104
114static __be32 * 105static __be32 *
115nlm4_encode_oh(__be32 *p, struct xdr_netobj *oh)
116{
117 return xdr_encode_netobj(p, oh);
118}
119
120static __be32 *
121nlm4_decode_lock(__be32 *p, struct nlm_lock *lock) 106nlm4_decode_lock(__be32 *p, struct nlm_lock *lock)
122{ 107{
123 struct file_lock *fl = &lock->fl; 108 struct file_lock *fl = &lock->fl;
@@ -150,38 +135,6 @@ nlm4_decode_lock(__be32 *p, struct nlm_lock *lock)
150} 135}
151 136
152/* 137/*
153 * Encode a lock as part of an NLM call
154 */
155static __be32 *
156nlm4_encode_lock(__be32 *p, struct nlm_lock *lock)
157{
158 struct file_lock *fl = &lock->fl;
159 __s64 start, len;
160
161 if (!(p = xdr_encode_string(p, lock->caller))
162 || !(p = nlm4_encode_fh(p, &lock->fh))
163 || !(p = nlm4_encode_oh(p, &lock->oh)))
164 return NULL;
165
166 if (fl->fl_start > NLM4_OFFSET_MAX
167 || (fl->fl_end > NLM4_OFFSET_MAX && fl->fl_end != OFFSET_MAX))
168 return NULL;
169
170 *p++ = htonl(lock->svid);
171
172 start = loff_t_to_s64(fl->fl_start);
173 if (fl->fl_end == OFFSET_MAX)
174 len = 0;
175 else
176 len = loff_t_to_s64(fl->fl_end - fl->fl_start + 1);
177
178 p = xdr_encode_hyper(p, start);
179 p = xdr_encode_hyper(p, len);
180
181 return p;
182}
183
184/*
185 * Encode result of a TEST/TEST_MSG call 138 * Encode result of a TEST/TEST_MSG call
186 */ 139 */
187static __be32 * 140static __be32 *
@@ -379,211 +332,3 @@ nlm4svc_encode_void(struct svc_rqst *rqstp, __be32 *p, void *dummy)
379{ 332{
380 return xdr_ressize_check(rqstp, p); 333 return xdr_ressize_check(rqstp, p);
381} 334}
382
383/*
384 * Now, the client side XDR functions
385 */
386#ifdef NLMCLNT_SUPPORT_SHARES
387static int
388nlm4clt_decode_void(struct rpc_rqst *req, __be32 *p, void *ptr)
389{
390 return 0;
391}
392#endif
393
394static int
395nlm4clt_encode_testargs(struct rpc_rqst *req, __be32 *p, nlm_args *argp)
396{
397 struct nlm_lock *lock = &argp->lock;
398
399 if (!(p = nlm4_encode_cookie(p, &argp->cookie)))
400 return -EIO;
401 *p++ = (lock->fl.fl_type == F_WRLCK)? xdr_one : xdr_zero;
402 if (!(p = nlm4_encode_lock(p, lock)))
403 return -EIO;
404 req->rq_slen = xdr_adjust_iovec(req->rq_svec, p);
405 return 0;
406}
407
408static int
409nlm4clt_decode_testres(struct rpc_rqst *req, __be32 *p, struct nlm_res *resp)
410{
411 if (!(p = nlm4_decode_cookie(p, &resp->cookie)))
412 return -EIO;
413 resp->status = *p++;
414 if (resp->status == nlm_lck_denied) {
415 struct file_lock *fl = &resp->lock.fl;
416 u32 excl;
417 __u64 start, len;
418 __s64 end;
419
420 memset(&resp->lock, 0, sizeof(resp->lock));
421 locks_init_lock(fl);
422 excl = ntohl(*p++);
423 resp->lock.svid = ntohl(*p++);
424 fl->fl_pid = (pid_t)resp->lock.svid;
425 if (!(p = nlm4_decode_oh(p, &resp->lock.oh)))
426 return -EIO;
427
428 fl->fl_flags = FL_POSIX;
429 fl->fl_type = excl? F_WRLCK : F_RDLCK;
430 p = xdr_decode_hyper(p, &start);
431 p = xdr_decode_hyper(p, &len);
432 end = start + len - 1;
433
434 fl->fl_start = s64_to_loff_t(start);
435 if (len == 0 || end < 0)
436 fl->fl_end = OFFSET_MAX;
437 else
438 fl->fl_end = s64_to_loff_t(end);
439 }
440 return 0;
441}
442
443
444static int
445nlm4clt_encode_lockargs(struct rpc_rqst *req, __be32 *p, nlm_args *argp)
446{
447 struct nlm_lock *lock = &argp->lock;
448
449 if (!(p = nlm4_encode_cookie(p, &argp->cookie)))
450 return -EIO;
451 *p++ = argp->block? xdr_one : xdr_zero;
452 *p++ = (lock->fl.fl_type == F_WRLCK)? xdr_one : xdr_zero;
453 if (!(p = nlm4_encode_lock(p, lock)))
454 return -EIO;
455 *p++ = argp->reclaim? xdr_one : xdr_zero;
456 *p++ = htonl(argp->state);
457 req->rq_slen = xdr_adjust_iovec(req->rq_svec, p);
458 return 0;
459}
460
461static int
462nlm4clt_encode_cancargs(struct rpc_rqst *req, __be32 *p, nlm_args *argp)
463{
464 struct nlm_lock *lock = &argp->lock;
465
466 if (!(p = nlm4_encode_cookie(p, &argp->cookie)))
467 return -EIO;
468 *p++ = argp->block? xdr_one : xdr_zero;
469 *p++ = (lock->fl.fl_type == F_WRLCK)? xdr_one : xdr_zero;
470 if (!(p = nlm4_encode_lock(p, lock)))
471 return -EIO;
472 req->rq_slen = xdr_adjust_iovec(req->rq_svec, p);
473 return 0;
474}
475
476static int
477nlm4clt_encode_unlockargs(struct rpc_rqst *req, __be32 *p, nlm_args *argp)
478{
479 struct nlm_lock *lock = &argp->lock;
480
481 if (!(p = nlm4_encode_cookie(p, &argp->cookie)))
482 return -EIO;
483 if (!(p = nlm4_encode_lock(p, lock)))
484 return -EIO;
485 req->rq_slen = xdr_adjust_iovec(req->rq_svec, p);
486 return 0;
487}
488
489static int
490nlm4clt_encode_res(struct rpc_rqst *req, __be32 *p, struct nlm_res *resp)
491{
492 if (!(p = nlm4_encode_cookie(p, &resp->cookie)))
493 return -EIO;
494 *p++ = resp->status;
495 req->rq_slen = xdr_adjust_iovec(req->rq_svec, p);
496 return 0;
497}
498
499static int
500nlm4clt_encode_testres(struct rpc_rqst *req, __be32 *p, struct nlm_res *resp)
501{
502 if (!(p = nlm4_encode_testres(p, resp)))
503 return -EIO;
504 req->rq_slen = xdr_adjust_iovec(req->rq_svec, p);
505 return 0;
506}
507
508static int
509nlm4clt_decode_res(struct rpc_rqst *req, __be32 *p, struct nlm_res *resp)
510{
511 if (!(p = nlm4_decode_cookie(p, &resp->cookie)))
512 return -EIO;
513 resp->status = *p++;
514 return 0;
515}
516
517#if (NLMCLNT_OHSIZE > XDR_MAX_NETOBJ)
518# error "NLM host name cannot be larger than XDR_MAX_NETOBJ!"
519#endif
520
521#if (NLMCLNT_OHSIZE > NLM_MAXSTRLEN)
522# error "NLM host name cannot be larger than NLM's maximum string length!"
523#endif
524
525/*
526 * Buffer requirements for NLM
527 */
528#define NLM4_void_sz 0
529#define NLM4_cookie_sz 1+XDR_QUADLEN(NLM_MAXCOOKIELEN)
530#define NLM4_caller_sz 1+XDR_QUADLEN(NLMCLNT_OHSIZE)
531#define NLM4_owner_sz 1+XDR_QUADLEN(NLMCLNT_OHSIZE)
532#define NLM4_fhandle_sz 1+XDR_QUADLEN(NFS3_FHSIZE)
533#define NLM4_lock_sz 5+NLM4_caller_sz+NLM4_owner_sz+NLM4_fhandle_sz
534#define NLM4_holder_sz 6+NLM4_owner_sz
535
536#define NLM4_testargs_sz NLM4_cookie_sz+1+NLM4_lock_sz
537#define NLM4_lockargs_sz NLM4_cookie_sz+4+NLM4_lock_sz
538#define NLM4_cancargs_sz NLM4_cookie_sz+2+NLM4_lock_sz
539#define NLM4_unlockargs_sz NLM4_cookie_sz+NLM4_lock_sz
540
541#define NLM4_testres_sz NLM4_cookie_sz+1+NLM4_holder_sz
542#define NLM4_res_sz NLM4_cookie_sz+1
543#define NLM4_norep_sz 0
544
545/*
546 * For NLM, a void procedure really returns nothing
547 */
548#define nlm4clt_decode_norep NULL
549
550#define PROC(proc, argtype, restype) \
551[NLMPROC_##proc] = { \
552 .p_proc = NLMPROC_##proc, \
553 .p_encode = (kxdrproc_t) nlm4clt_encode_##argtype, \
554 .p_decode = (kxdrproc_t) nlm4clt_decode_##restype, \
555 .p_arglen = NLM4_##argtype##_sz, \
556 .p_replen = NLM4_##restype##_sz, \
557 .p_statidx = NLMPROC_##proc, \
558 .p_name = #proc, \
559 }
560
561static struct rpc_procinfo nlm4_procedures[] = {
562 PROC(TEST, testargs, testres),
563 PROC(LOCK, lockargs, res),
564 PROC(CANCEL, cancargs, res),
565 PROC(UNLOCK, unlockargs, res),
566 PROC(GRANTED, testargs, res),
567 PROC(TEST_MSG, testargs, norep),
568 PROC(LOCK_MSG, lockargs, norep),
569 PROC(CANCEL_MSG, cancargs, norep),
570 PROC(UNLOCK_MSG, unlockargs, norep),
571 PROC(GRANTED_MSG, testargs, norep),
572 PROC(TEST_RES, testres, norep),
573 PROC(LOCK_RES, res, norep),
574 PROC(CANCEL_RES, res, norep),
575 PROC(UNLOCK_RES, res, norep),
576 PROC(GRANTED_RES, res, norep),
577#ifdef NLMCLNT_SUPPORT_SHARES
578 PROC(SHARE, shareargs, shareres),
579 PROC(UNSHARE, shareargs, shareres),
580 PROC(NM_LOCK, lockargs, res),
581 PROC(FREE_ALL, notify, void),
582#endif
583};
584
585struct rpc_version nlm_version4 = {
586 .number = 4,
587 .nrprocs = 24,
588 .procs = nlm4_procedures,
589};
generated by cgit v1.2.2 (git 2.25.0) at 2024-11-24 23:44:51 -0500