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-rw-r--r--fs/lockd/xdr.c258
1 files changed, 0 insertions, 258 deletions
diff --git a/fs/lockd/xdr.c b/fs/lockd/xdr.c
index b583ab0a4cbb..0eb694dc497b 100644
--- a/fs/lockd/xdr.c
+++ b/fs/lockd/xdr.c
@@ -149,37 +149,6 @@ nlm_decode_lock(__be32 *p, struct nlm_lock *lock)
149} 149}
150 150
151/* 151/*
152 * Encode a lock as part of an NLM call
153 */
154static __be32 *
155nlm_encode_lock(__be32 *p, struct nlm_lock *lock)
156{
157 struct file_lock *fl = &lock->fl;
158 __s32 start, len;
159
160 if (!(p = xdr_encode_string(p, lock->caller))
161 || !(p = nlm_encode_fh(p, &lock->fh))
162 || !(p = nlm_encode_oh(p, &lock->oh)))
163 return NULL;
164
165 if (fl->fl_start > NLM_OFFSET_MAX
166 || (fl->fl_end > NLM_OFFSET_MAX && fl->fl_end != OFFSET_MAX))
167 return NULL;
168
169 start = loff_t_to_s32(fl->fl_start);
170 if (fl->fl_end == OFFSET_MAX)
171 len = 0;
172 else
173 len = loff_t_to_s32(fl->fl_end - fl->fl_start + 1);
174
175 *p++ = htonl(lock->svid);
176 *p++ = htonl(start);
177 *p++ = htonl(len);
178
179 return p;
180}
181
182/*
183 * Encode result of a TEST/TEST_MSG call 152 * Encode result of a TEST/TEST_MSG call
184 */ 153 */
185static __be32 * 154static __be32 *
@@ -373,233 +342,6 @@ nlmsvc_encode_void(struct svc_rqst *rqstp, __be32 *p, void *dummy)
373 return xdr_ressize_check(rqstp, p); 342 return xdr_ressize_check(rqstp, p);
374} 343}
375 344
376/*
377 * Now, the client side XDR functions
378 */
379#ifdef NLMCLNT_SUPPORT_SHARES
380static int
381nlmclt_decode_void(struct rpc_rqst *req, u32 *p, void *ptr)
382{
383 return 0;
384}
385#endif
386
387static int
388nlmclt_encode_testargs(struct rpc_rqst *req, __be32 *p, nlm_args *argp)
389{
390 struct nlm_lock *lock = &argp->lock;
391
392 if (!(p = nlm_encode_cookie(p, &argp->cookie)))
393 return -EIO;
394 *p++ = (lock->fl.fl_type == F_WRLCK)? xdr_one : xdr_zero;
395 if (!(p = nlm_encode_lock(p, lock)))
396 return -EIO;
397 req->rq_slen = xdr_adjust_iovec(req->rq_svec, p);
398 return 0;
399}
400
401static int
402nlmclt_decode_testres(struct rpc_rqst *req, __be32 *p, struct nlm_res *resp)
403{
404 if (!(p = nlm_decode_cookie(p, &resp->cookie)))
405 return -EIO;
406 resp->status = *p++;
407 if (resp->status == nlm_lck_denied) {
408 struct file_lock *fl = &resp->lock.fl;
409 u32 excl;
410 s32 start, len, end;
411
412 memset(&resp->lock, 0, sizeof(resp->lock));
413 locks_init_lock(fl);
414 excl = ntohl(*p++);
415 resp->lock.svid = ntohl(*p++);
416 fl->fl_pid = (pid_t)resp->lock.svid;
417 if (!(p = nlm_decode_oh(p, &resp->lock.oh)))
418 return -EIO;
419
420 fl->fl_flags = FL_POSIX;
421 fl->fl_type = excl? F_WRLCK : F_RDLCK;
422 start = ntohl(*p++);
423 len = ntohl(*p++);
424 end = start + len - 1;
425
426 fl->fl_start = s32_to_loff_t(start);
427 if (len == 0 || end < 0)
428 fl->fl_end = OFFSET_MAX;
429 else
430 fl->fl_end = s32_to_loff_t(end);
431 }
432 return 0;
433}
434
435
436static int
437nlmclt_encode_lockargs(struct rpc_rqst *req, __be32 *p, nlm_args *argp)
438{
439 struct nlm_lock *lock = &argp->lock;
440
441 if (!(p = nlm_encode_cookie(p, &argp->cookie)))
442 return -EIO;
443 *p++ = argp->block? xdr_one : xdr_zero;
444 *p++ = (lock->fl.fl_type == F_WRLCK)? xdr_one : xdr_zero;
445 if (!(p = nlm_encode_lock(p, lock)))
446 return -EIO;
447 *p++ = argp->reclaim? xdr_one : xdr_zero;
448 *p++ = htonl(argp->state);
449 req->rq_slen = xdr_adjust_iovec(req->rq_svec, p);
450 return 0;
451}
452
453static int
454nlmclt_encode_cancargs(struct rpc_rqst *req, __be32 *p, nlm_args *argp)
455{
456 struct nlm_lock *lock = &argp->lock;
457
458 if (!(p = nlm_encode_cookie(p, &argp->cookie)))
459 return -EIO;
460 *p++ = argp->block? xdr_one : xdr_zero;
461 *p++ = (lock->fl.fl_type == F_WRLCK)? xdr_one : xdr_zero;
462 if (!(p = nlm_encode_lock(p, lock)))
463 return -EIO;
464 req->rq_slen = xdr_adjust_iovec(req->rq_svec, p);
465 return 0;
466}
467
468static int
469nlmclt_encode_unlockargs(struct rpc_rqst *req, __be32 *p, nlm_args *argp)
470{
471 struct nlm_lock *lock = &argp->lock;
472
473 if (!(p = nlm_encode_cookie(p, &argp->cookie)))
474 return -EIO;
475 if (!(p = nlm_encode_lock(p, lock)))
476 return -EIO;
477 req->rq_slen = xdr_adjust_iovec(req->rq_svec, p);
478 return 0;
479}
480
481static int
482nlmclt_encode_res(struct rpc_rqst *req, __be32 *p, struct nlm_res *resp)
483{
484 if (!(p = nlm_encode_cookie(p, &resp->cookie)))
485 return -EIO;
486 *p++ = resp->status;
487 req->rq_slen = xdr_adjust_iovec(req->rq_svec, p);
488 return 0;
489}
490
491static int
492nlmclt_encode_testres(struct rpc_rqst *req, __be32 *p, struct nlm_res *resp)
493{
494 if (!(p = nlm_encode_testres(p, resp)))
495 return -EIO;
496 req->rq_slen = xdr_adjust_iovec(req->rq_svec, p);
497 return 0;
498}
499
500static int
501nlmclt_decode_res(struct rpc_rqst *req, __be32 *p, struct nlm_res *resp)
502{
503 if (!(p = nlm_decode_cookie(p, &resp->cookie)))
504 return -EIO;
505 resp->status = *p++;
506 return 0;
507}
508
509#if (NLMCLNT_OHSIZE > XDR_MAX_NETOBJ)
510# error "NLM host name cannot be larger than XDR_MAX_NETOBJ!"
511#endif
512
513/*
514 * Buffer requirements for NLM
515 */
516#define NLM_void_sz 0
517#define NLM_cookie_sz 1+XDR_QUADLEN(NLM_MAXCOOKIELEN)
518#define NLM_caller_sz 1+XDR_QUADLEN(NLMCLNT_OHSIZE)
519#define NLM_owner_sz 1+XDR_QUADLEN(NLMCLNT_OHSIZE)
520#define NLM_fhandle_sz 1+XDR_QUADLEN(NFS2_FHSIZE)
521#define NLM_lock_sz 3+NLM_caller_sz+NLM_owner_sz+NLM_fhandle_sz
522#define NLM_holder_sz 4+NLM_owner_sz
523
524#define NLM_testargs_sz NLM_cookie_sz+1+NLM_lock_sz
525#define NLM_lockargs_sz NLM_cookie_sz+4+NLM_lock_sz
526#define NLM_cancargs_sz NLM_cookie_sz+2+NLM_lock_sz
527#define NLM_unlockargs_sz NLM_cookie_sz+NLM_lock_sz
528
529#define NLM_testres_sz NLM_cookie_sz+1+NLM_holder_sz
530#define NLM_res_sz NLM_cookie_sz+1
531#define NLM_norep_sz 0
532
533/*
534 * For NLM, a void procedure really returns nothing
535 */
536#define nlmclt_decode_norep NULL
537
538#define PROC(proc, argtype, restype) \
539[NLMPROC_##proc] = { \
540 .p_proc = NLMPROC_##proc, \
541 .p_encode = (kxdrproc_t) nlmclt_encode_##argtype, \
542 .p_decode = (kxdrproc_t) nlmclt_decode_##restype, \
543 .p_arglen = NLM_##argtype##_sz, \
544 .p_replen = NLM_##restype##_sz, \
545 .p_statidx = NLMPROC_##proc, \
546 .p_name = #proc, \
547 }
548
549static struct rpc_procinfo nlm_procedures[] = {
550 PROC(TEST, testargs, testres),
551 PROC(LOCK, lockargs, res),
552 PROC(CANCEL, cancargs, res),
553 PROC(UNLOCK, unlockargs, res),
554 PROC(GRANTED, testargs, res),
555 PROC(TEST_MSG, testargs, norep),
556 PROC(LOCK_MSG, lockargs, norep),
557 PROC(CANCEL_MSG, cancargs, norep),
558 PROC(UNLOCK_MSG, unlockargs, norep),
559 PROC(GRANTED_MSG, testargs, norep),
560 PROC(TEST_RES, testres, norep),
561 PROC(LOCK_RES, res, norep),
562 PROC(CANCEL_RES, res, norep),
563 PROC(UNLOCK_RES, res, norep),
564 PROC(GRANTED_RES, res, norep),
565#ifdef NLMCLNT_SUPPORT_SHARES
566 PROC(SHARE, shareargs, shareres),
567 PROC(UNSHARE, shareargs, shareres),
568 PROC(NM_LOCK, lockargs, res),
569 PROC(FREE_ALL, notify, void),
570#endif
571};
572
573static struct rpc_version nlm_version1 = {
574 .number = 1,
575 .nrprocs = 16,
576 .procs = nlm_procedures,
577};
578
579static struct rpc_version nlm_version3 = {
580 .number = 3,
581 .nrprocs = 24,
582 .procs = nlm_procedures,
583};
584
585static struct rpc_version * nlm_versions[] = {
586 [1] = &nlm_version1,
587 [3] = &nlm_version3,
588#ifdef CONFIG_LOCKD_V4
589 [4] = &nlm_version4,
590#endif
591};
592
593static struct rpc_stat nlm_stats;
594
595struct rpc_program nlm_program = {
596 .name = "lockd",
597 .number = NLM_PROGRAM,
598 .nrvers = ARRAY_SIZE(nlm_versions),
599 .version = nlm_versions,
600 .stats = &nlm_stats,
601};
602
603#ifdef RPC_DEBUG 345#ifdef RPC_DEBUG
604const char *nlmdbg_cookie2a(const struct nlm_cookie *cookie) 346const char *nlmdbg_cookie2a(const struct nlm_cookie *cookie)
605{ 347{
generated by cgit v1.2.2 (git 2.25.0) at 2025-01-08 18:02:42 -0500