1 files changed, 0 insertions, 347 deletions

diff --git a/fs/lockd/xdr4.c b/fs/lockd/xdr4.c
deleted file mode 100644
index e343c820301f..000000000000
--- a/fs/lockd/xdr4.c
+++ /dev/null
@@ -1,347 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-/*
- * linux/fs/lockd/xdr4.c
- *
- * XDR support for lockd and the lock client.
- *
- * Copyright (C) 1995, 1996 Olaf Kirch <okir@monad.swb.de>
- * Copyright (C) 1999, Trond Myklebust <trond.myklebust@fys.uio.no>
- */
-
-#include <linux/types.h>
-#include <linux/sched.h>
-#include <linux/nfs.h>
-
-#include <linux/sunrpc/xdr.h>
-#include <linux/sunrpc/clnt.h>
-#include <linux/sunrpc/svc.h>
-#include <linux/sunrpc/stats.h>
-#include <linux/lockd/lockd.h>
-
-#include "svcxdr.h"
-
-static inline s64
-loff_t_to_s64(loff_t offset)
-{
-	s64 res;
-	if (offset > NLM4_OFFSET_MAX)
-		res = NLM4_OFFSET_MAX;
-	else if (offset < -NLM4_OFFSET_MAX)
-		res = -NLM4_OFFSET_MAX;
-	else
-		res = offset;
-	return res;
-}
-
-void nlm4svc_set_file_lock_range(struct file_lock *fl, u64 off, u64 len)
-{
-	s64 end = off + len - 1;
-
-	fl->fl_start = off;
-	if (len == 0 || end < 0)
-		fl->fl_end = OFFSET_MAX;
-	else
-		fl->fl_end = end;
-}
-
-/*
- * NLM file handles are defined by specification to be a variable-length
- * XDR opaque no longer than 1024 bytes. However, this implementation
- * limits their length to the size of an NFSv3 file handle.
- */
-static bool
-svcxdr_decode_fhandle(struct xdr_stream *xdr, struct nfs_fh *fh)
-{
-	__be32 *p;
-	u32 len;
-
-	if (xdr_stream_decode_u32(xdr, &len) < 0)
-		return false;
-	if (len > NFS_MAXFHSIZE)
-		return false;
-
-	p = xdr_inline_decode(xdr, len);
-	if (!p)
-		return false;
-	fh->size = len;
-	memcpy(fh->data, p, len);
-	memset(fh->data + len, 0, sizeof(fh->data) - len);
-
-	return true;
-}
-
-static bool
-svcxdr_decode_lock(struct xdr_stream *xdr, struct nlm_lock *lock)
-{
-	struct file_lock *fl = &lock->fl;
-
-	if (!svcxdr_decode_string(xdr, &lock->caller, &lock->len))
-		return false;
-	if (!svcxdr_decode_fhandle(xdr, &lock->fh))
-		return false;
-	if (!svcxdr_decode_owner(xdr, &lock->oh))
-		return false;
-	if (xdr_stream_decode_u32(xdr, &lock->svid) < 0)
-		return false;
-	if (xdr_stream_decode_u64(xdr, &lock->lock_start) < 0)
-		return false;
-	if (xdr_stream_decode_u64(xdr, &lock->lock_len) < 0)
-		return false;
-
-	locks_init_lock(fl);
-	fl->c.flc_type  = F_RDLCK;
-	nlm4svc_set_file_lock_range(fl, lock->lock_start, lock->lock_len);
-	return true;
-}
-
-static bool
-svcxdr_encode_holder(struct xdr_stream *xdr, const struct nlm_lock *lock)
-{
-	const struct file_lock *fl = &lock->fl;
-	s64 start, len;
-
-	/* exclusive */
-	if (xdr_stream_encode_bool(xdr, fl->c.flc_type != F_RDLCK) < 0)
-		return false;
-	if (xdr_stream_encode_u32(xdr, lock->svid) < 0)
-		return false;
-	if (!svcxdr_encode_owner(xdr, &lock->oh))
-		return false;
-	start = loff_t_to_s64(fl->fl_start);
-	if (fl->fl_end == OFFSET_MAX)
-		len = 0;
-	else
-		len = loff_t_to_s64(fl->fl_end - fl->fl_start + 1);
-	if (xdr_stream_encode_u64(xdr, start) < 0)
-		return false;
-	if (xdr_stream_encode_u64(xdr, len) < 0)
-		return false;
-
-	return true;
-}
-
-static bool
-svcxdr_encode_testrply(struct xdr_stream *xdr, const struct nlm_res *resp)
-{
-	if (!svcxdr_encode_stats(xdr, resp->status))
-		return false;
-	switch (resp->status) {
-	case nlm_lck_denied:
-		if (!svcxdr_encode_holder(xdr, &resp->lock))
-			return false;
-	}
-
-	return true;
-}
-
-
-/*
- * Decode Call arguments
- */
-
-bool
-nlm4svc_decode_void(struct svc_rqst *rqstp, struct xdr_stream *xdr)
-{
-	return true;
-}
-
-bool
-nlm4svc_decode_testargs(struct svc_rqst *rqstp, struct xdr_stream *xdr)
-{
-	struct nlm_args *argp = rqstp->rq_argp;
-	u32 exclusive;
-
-	if (!svcxdr_decode_cookie(xdr, &argp->cookie))
-		return false;
-	if (xdr_stream_decode_bool(xdr, &exclusive) < 0)
-		return false;
-	if (!svcxdr_decode_lock(xdr, &argp->lock))
-		return false;
-	if (exclusive)
-		argp->lock.fl.c.flc_type = F_WRLCK;
-
-	return true;
-}
-
-bool
-nlm4svc_decode_lockargs(struct svc_rqst *rqstp, struct xdr_stream *xdr)
-{
-	struct nlm_args *argp = rqstp->rq_argp;
-	u32 exclusive;
-
-	if (!svcxdr_decode_cookie(xdr, &argp->cookie))
-		return false;
-	if (xdr_stream_decode_bool(xdr, &argp->block) < 0)
-		return false;
-	if (xdr_stream_decode_bool(xdr, &exclusive) < 0)
-		return false;
-	if (!svcxdr_decode_lock(xdr, &argp->lock))
-		return false;
-	if (exclusive)
-		argp->lock.fl.c.flc_type = F_WRLCK;
-	if (xdr_stream_decode_bool(xdr, &argp->reclaim) < 0)
-		return false;
-	if (xdr_stream_decode_u32(xdr, &argp->state) < 0)
-		return false;
-	argp->monitor = 1;		/* monitor client by default */
-
-	return true;
-}
-
-bool
-nlm4svc_decode_cancargs(struct svc_rqst *rqstp, struct xdr_stream *xdr)
-{
-	struct nlm_args *argp = rqstp->rq_argp;
-	u32 exclusive;
-
-	if (!svcxdr_decode_cookie(xdr, &argp->cookie))
-		return false;
-	if (xdr_stream_decode_bool(xdr, &argp->block) < 0)
-		return false;
-	if (xdr_stream_decode_bool(xdr, &exclusive) < 0)
-		return false;
-	if (!svcxdr_decode_lock(xdr, &argp->lock))
-		return false;
-	if (exclusive)
-		argp->lock.fl.c.flc_type = F_WRLCK;
-
-	return true;
-}
-
-bool
-nlm4svc_decode_unlockargs(struct svc_rqst *rqstp, struct xdr_stream *xdr)
-{
-	struct nlm_args *argp = rqstp->rq_argp;
-
-	if (!svcxdr_decode_cookie(xdr, &argp->cookie))
-		return false;
-	if (!svcxdr_decode_lock(xdr, &argp->lock))
-		return false;
-	argp->lock.fl.c.flc_type = F_UNLCK;
-
-	return true;
-}
-
-bool
-nlm4svc_decode_res(struct svc_rqst *rqstp, struct xdr_stream *xdr)
-{
-	struct nlm_res *resp = rqstp->rq_argp;
-
-	if (!svcxdr_decode_cookie(xdr, &resp->cookie))
-		return false;
-	if (!svcxdr_decode_stats(xdr, &resp->status))
-		return false;
-
-	return true;
-}
-
-bool
-nlm4svc_decode_reboot(struct svc_rqst *rqstp, struct xdr_stream *xdr)
-{
-	struct nlm_reboot *argp = rqstp->rq_argp;
-	__be32 *p;
-	u32 len;
-
-	if (xdr_stream_decode_u32(xdr, &len) < 0)
-		return false;
-	if (len > SM_MAXSTRLEN)
-		return false;
-	p = xdr_inline_decode(xdr, len);
-	if (!p)
-		return false;
-	argp->len = len;
-	argp->mon = (char *)p;
-	if (xdr_stream_decode_u32(xdr, &argp->state) < 0)
-		return false;
-	p = xdr_inline_decode(xdr, SM_PRIV_SIZE);
-	if (!p)
-		return false;
-	memcpy(&argp->priv.data, p, sizeof(argp->priv.data));
-
-	return true;
-}
-
-bool
-nlm4svc_decode_shareargs(struct svc_rqst *rqstp, struct xdr_stream *xdr)
-{
-	struct nlm_args *argp = rqstp->rq_argp;
-	struct nlm_lock	*lock = &argp->lock;
-
-	locks_init_lock(&lock->fl);
-	lock->svid = ~(u32)0;
-
-	if (!svcxdr_decode_cookie(xdr, &argp->cookie))
-		return false;
-	if (!svcxdr_decode_string(xdr, &lock->caller, &lock->len))
-		return false;
-	if (!svcxdr_decode_fhandle(xdr, &lock->fh))
-		return false;
-	if (!svcxdr_decode_owner(xdr, &lock->oh))
-		return false;
-	/* XXX: Range checks are missing in the original code */
-	if (xdr_stream_decode_u32(xdr, &argp->fsm_mode) < 0)
-		return false;
-	if (xdr_stream_decode_u32(xdr, &argp->fsm_access) < 0)
-		return false;
-
-	return true;
-}
-
-bool
-nlm4svc_decode_notify(struct svc_rqst *rqstp, struct xdr_stream *xdr)
-{
-	struct nlm_args *argp = rqstp->rq_argp;
-	struct nlm_lock	*lock = &argp->lock;
-
-	if (!svcxdr_decode_string(xdr, &lock->caller, &lock->len))
-		return false;
-	if (xdr_stream_decode_u32(xdr, &argp->state) < 0)
-		return false;
-
-	return true;
-}
-
-
-/*
- * Encode Reply results
- */
-
-bool
-nlm4svc_encode_void(struct svc_rqst *rqstp, struct xdr_stream *xdr)
-{
-	return true;
-}
-
-bool
-nlm4svc_encode_testres(struct svc_rqst *rqstp, struct xdr_stream *xdr)
-{
-	struct nlm_res *resp = rqstp->rq_resp;
-
-	return svcxdr_encode_cookie(xdr, &resp->cookie) &&
-		svcxdr_encode_testrply(xdr, resp);
-}
-
-bool
-nlm4svc_encode_res(struct svc_rqst *rqstp, struct xdr_stream *xdr)
-{
-	struct nlm_res *resp = rqstp->rq_resp;
-
-	return svcxdr_encode_cookie(xdr, &resp->cookie) &&
-		svcxdr_encode_stats(xdr, resp->status);
-}
-
-bool
-nlm4svc_encode_shareres(struct svc_rqst *rqstp, struct xdr_stream *xdr)
-{
-	struct nlm_res *resp = rqstp->rq_resp;
-
-	if (!svcxdr_encode_cookie(xdr, &resp->cookie))
-		return false;
-	if (!svcxdr_encode_stats(xdr, resp->status))
-		return false;
-	/* sequence */
-	if (xdr_stream_encode_u32(xdr, 0) < 0)
-		return false;
-
-	return true;
-}