Merge /spare/repo/linux-2.6/

16 files changed, 1813 insertions, 522 deletions

diff --git a/fs/nfsd/Makefile b/fs/nfsd/Makefile
index b8680a247f8..ce341dc76d5 100644
--- a/fs/nfsd/Makefile
+++ b/fs/nfsd/Makefile
@@ -6,7 +6,9 @@ obj-$(CONFIG_NFSD)	+= nfsd.o
 
 nfsd-y 			:= nfssvc.o nfsctl.o nfsproc.o nfsfh.o vfs.o \
 			   export.o auth.o lockd.o nfscache.o nfsxdr.o stats.o
+nfsd-$(CONFIG_NFSD_V2_ACL) += nfs2acl.o
 nfsd-$(CONFIG_NFSD_V3)	+= nfs3proc.o nfs3xdr.o
+nfsd-$(CONFIG_NFSD_V3_ACL) += nfs3acl.o
 nfsd-$(CONFIG_NFSD_V4)	+= nfs4proc.o nfs4xdr.o nfs4state.o nfs4idmap.o \
-			   nfs4acl.o nfs4callback.o
+			   nfs4acl.o nfs4callback.o nfs4recover.o
 nfsd-objs		:= $(nfsd-y)
diff --git a/fs/nfsd/nfs2acl.c b/fs/nfsd/nfs2acl.c
new file mode 100644
index 00000000000..7cbf0682b2f
--- /dev/null
+++ b/fs/nfsd/nfs2acl.c
@@ -0,0 +1,336 @@
+/*
+ * linux/fs/nfsd/nfsacl.c
+ *
+ * Process version 2 NFSACL requests.
+ *
+ * Copyright (C) 2002-2003 Andreas Gruenbacher <agruen@suse.de>
+ */
+
+#include <linux/sunrpc/svc.h>
+#include <linux/nfs.h>
+#include <linux/nfsd/nfsd.h>
+#include <linux/nfsd/cache.h>
+#include <linux/nfsd/xdr.h>
+#include <linux/nfsd/xdr3.h>
+#include <linux/posix_acl.h>
+#include <linux/nfsacl.h>
+
+#define NFSDDBG_FACILITY		NFSDDBG_PROC
+#define RETURN_STATUS(st)	{ resp->status = (st); return (st); }
+
+/*
+ * NULL call.
+ */
+static int
+nfsacld_proc_null(struct svc_rqst *rqstp, void *argp, void *resp)
+{
+	return nfs_ok;
+}
+
+/*
+ * Get the Access and/or Default ACL of a file.
+ */
+static int nfsacld_proc_getacl(struct svc_rqst * rqstp,
+		struct nfsd3_getaclargs *argp, struct nfsd3_getaclres *resp)
+{
+	svc_fh *fh;
+	struct posix_acl *acl;
+	int nfserr = 0;
+
+	dprintk("nfsd: GETACL(2acl)   %s\n", SVCFH_fmt(&argp->fh));
+
+	fh = fh_copy(&resp->fh, &argp->fh);
+	if ((nfserr = fh_verify(rqstp, &resp->fh, 0, MAY_NOP)))
+		RETURN_STATUS(nfserr_inval);
+
+	if (argp->mask & ~(NFS_ACL|NFS_ACLCNT|NFS_DFACL|NFS_DFACLCNT))
+		RETURN_STATUS(nfserr_inval);
+	resp->mask = argp->mask;
+
+	if (resp->mask & (NFS_ACL|NFS_ACLCNT)) {
+		acl = nfsd_get_posix_acl(fh, ACL_TYPE_ACCESS);
+		if (IS_ERR(acl)) {
+			int err = PTR_ERR(acl);
+
+			if (err == -ENODATA || err == -EOPNOTSUPP)
+				acl = NULL;
+			else {
+				nfserr = nfserrno(err);
+				goto fail;
+			}
+		}
+		if (acl == NULL) {
+			/* Solaris returns the inode's minimum ACL. */
+
+			struct inode *inode = fh->fh_dentry->d_inode;
+			acl = posix_acl_from_mode(inode->i_mode, GFP_KERNEL);
+		}
+		resp->acl_access = acl;
+	}
+	if (resp->mask & (NFS_DFACL|NFS_DFACLCNT)) {
+		/* Check how Solaris handles requests for the Default ACL
+		   of a non-directory! */
+
+		acl = nfsd_get_posix_acl(fh, ACL_TYPE_DEFAULT);
+		if (IS_ERR(acl)) {
+			int err = PTR_ERR(acl);
+
+			if (err == -ENODATA || err == -EOPNOTSUPP)
+				acl = NULL;
+			else {
+				nfserr = nfserrno(err);
+				goto fail;
+			}
+		}
+		resp->acl_default = acl;
+	}
+
+	/* resp->acl_{access,default} are released in nfssvc_release_getacl. */
+	RETURN_STATUS(0);
+
+fail:
+	posix_acl_release(resp->acl_access);
+	posix_acl_release(resp->acl_default);
+	RETURN_STATUS(nfserr);
+}
+
+/*
+ * Set the Access and/or Default ACL of a file.
+ */
+static int nfsacld_proc_setacl(struct svc_rqst * rqstp,
+		struct nfsd3_setaclargs *argp,
+		struct nfsd_attrstat *resp)
+{
+	svc_fh *fh;
+	int nfserr = 0;
+
+	dprintk("nfsd: SETACL(2acl)   %s\n", SVCFH_fmt(&argp->fh));
+
+	fh = fh_copy(&resp->fh, &argp->fh);
+	nfserr = fh_verify(rqstp, &resp->fh, 0, MAY_NOP);
+
+	if (!nfserr) {
+		nfserr = nfserrno( nfsd_set_posix_acl(
+			fh, ACL_TYPE_ACCESS, argp->acl_access) );
+	}
+	if (!nfserr) {
+		nfserr = nfserrno( nfsd_set_posix_acl(
+			fh, ACL_TYPE_DEFAULT, argp->acl_default) );
+	}
+
+	/* argp->acl_{access,default} may have been allocated in
+	   nfssvc_decode_setaclargs. */
+	posix_acl_release(argp->acl_access);
+	posix_acl_release(argp->acl_default);
+	return nfserr;
+}
+
+/*
+ * Check file attributes
+ */
+static int nfsacld_proc_getattr(struct svc_rqst * rqstp,
+		struct nfsd_fhandle *argp, struct nfsd_attrstat *resp)
+{
+	dprintk("nfsd: GETATTR  %s\n", SVCFH_fmt(&argp->fh));
+
+	fh_copy(&resp->fh, &argp->fh);
+	return fh_verify(rqstp, &resp->fh, 0, MAY_NOP);
+}
+
+/*
+ * Check file access
+ */
+static int nfsacld_proc_access(struct svc_rqst *rqstp, struct nfsd3_accessargs *argp,
+		struct nfsd3_accessres *resp)
+{
+	int nfserr;
+
+	dprintk("nfsd: ACCESS(2acl)   %s 0x%x\n",
+			SVCFH_fmt(&argp->fh),
+			argp->access);
+
+	fh_copy(&resp->fh, &argp->fh);
+	resp->access = argp->access;
+	nfserr = nfsd_access(rqstp, &resp->fh, &resp->access, NULL);
+	return nfserr;
+}
+
+/*
+ * XDR decode functions
+ */
+static int nfsaclsvc_decode_getaclargs(struct svc_rqst *rqstp, u32 *p,
+		struct nfsd3_getaclargs *argp)
+{
+	if (!(p = nfs2svc_decode_fh(p, &argp->fh)))
+		return 0;
+	argp->mask = ntohl(*p); p++;
+
+	return xdr_argsize_check(rqstp, p);
+}
+
+
+static int nfsaclsvc_decode_setaclargs(struct svc_rqst *rqstp, u32 *p,
+		struct nfsd3_setaclargs *argp)
+{
+	struct kvec *head = rqstp->rq_arg.head;
+	unsigned int base;
+	int n;
+
+	if (!(p = nfs2svc_decode_fh(p, &argp->fh)))
+		return 0;
+	argp->mask = ntohl(*p++);
+	if (argp->mask & ~(NFS_ACL|NFS_ACLCNT|NFS_DFACL|NFS_DFACLCNT) ||
+	    !xdr_argsize_check(rqstp, p))
+		return 0;
+
+	base = (char *)p - (char *)head->iov_base;
+	n = nfsacl_decode(&rqstp->rq_arg, base, NULL,
+			  (argp->mask & NFS_ACL) ?
+			  &argp->acl_access : NULL);
+	if (n > 0)
+		n = nfsacl_decode(&rqstp->rq_arg, base + n, NULL,
+				  (argp->mask & NFS_DFACL) ?
+				  &argp->acl_default : NULL);
+	return (n > 0);
+}
+
+static int nfsaclsvc_decode_fhandleargs(struct svc_rqst *rqstp, u32 *p,
+		struct nfsd_fhandle *argp)
+{
+	if (!(p = nfs2svc_decode_fh(p, &argp->fh)))
+		return 0;
+	return xdr_argsize_check(rqstp, p);
+}
+
+static int nfsaclsvc_decode_accessargs(struct svc_rqst *rqstp, u32 *p,
+		struct nfsd3_accessargs *argp)
+{
+	if (!(p = nfs2svc_decode_fh(p, &argp->fh)))
+		return 0;
+	argp->access = ntohl(*p++);
+
+	return xdr_argsize_check(rqstp, p);
+}
+
+/*
+ * XDR encode functions
+ */
+
+/* GETACL */
+static int nfsaclsvc_encode_getaclres(struct svc_rqst *rqstp, u32 *p,
+		struct nfsd3_getaclres *resp)
+{
+	struct dentry *dentry = resp->fh.fh_dentry;
+	struct inode *inode = dentry->d_inode;
+	int w = nfsacl_size(
+		(resp->mask & NFS_ACL)   ? resp->acl_access  : NULL,
+		(resp->mask & NFS_DFACL) ? resp->acl_default : NULL);
+	struct kvec *head = rqstp->rq_res.head;
+	unsigned int base;
+	int n;
+
+	if (dentry == NULL || dentry->d_inode == NULL)
+		return 0;
+	inode = dentry->d_inode;
+
+	p = nfs2svc_encode_fattr(rqstp, p, &resp->fh);
+	*p++ = htonl(resp->mask);
+	if (!xdr_ressize_check(rqstp, p))
+		return 0;
+	base = (char *)p - (char *)head->iov_base;
+
+	rqstp->rq_res.page_len = w;
+	while (w > 0) {
+		if (!svc_take_res_page(rqstp))
+			return 0;
+		w -= PAGE_SIZE;
+	}
+
+	n = nfsacl_encode(&rqstp->rq_res, base, inode,
+			  resp->acl_access,
+			  resp->mask & NFS_ACL, 0);
+	if (n > 0)
+		n = nfsacl_encode(&rqstp->rq_res, base + n, inode,
+				  resp->acl_default,
+				  resp->mask & NFS_DFACL,
+				  NFS_ACL_DEFAULT);
+	if (n <= 0)
+		return 0;
+	return 1;
+}
+
+static int nfsaclsvc_encode_attrstatres(struct svc_rqst *rqstp, u32 *p,
+		struct nfsd_attrstat *resp)
+{
+	p = nfs2svc_encode_fattr(rqstp, p, &resp->fh);
+	return xdr_ressize_check(rqstp, p);
+}
+
+/* ACCESS */
+static int nfsaclsvc_encode_accessres(struct svc_rqst *rqstp, u32 *p,
+		struct nfsd3_accessres *resp)
+{
+	p = nfs2svc_encode_fattr(rqstp, p, &resp->fh);
+	*p++ = htonl(resp->access);
+	return xdr_ressize_check(rqstp, p);
+}
+
+/*
+ * XDR release functions
+ */
+static int nfsaclsvc_release_getacl(struct svc_rqst *rqstp, u32 *p,
+		struct nfsd3_getaclres *resp)
+{
+	fh_put(&resp->fh);
+	posix_acl_release(resp->acl_access);
+	posix_acl_release(resp->acl_default);
+	return 1;
+}
+
+static int nfsaclsvc_release_fhandle(struct svc_rqst *rqstp, u32 *p,
+		struct nfsd_fhandle *resp)
+{
+	fh_put(&resp->fh);
+	return 1;
+}
+
+#define nfsaclsvc_decode_voidargs	NULL
+#define nfsaclsvc_encode_voidres	NULL
+#define nfsaclsvc_release_void		NULL
+#define nfsd3_fhandleargs	nfsd_fhandle
+#define nfsd3_attrstatres	nfsd_attrstat
+#define nfsd3_voidres		nfsd3_voidargs
+struct nfsd3_voidargs { int dummy; };
+
+#define PROC(name, argt, rest, relt, cache, respsize)	\
+ { (svc_procfunc) nfsacld_proc_##name,		\
+   (kxdrproc_t) nfsaclsvc_decode_##argt##args,	\
+   (kxdrproc_t) nfsaclsvc_encode_##rest##res,	\
+   (kxdrproc_t) nfsaclsvc_release_##relt,		\
+   sizeof(struct nfsd3_##argt##args),		\
+   sizeof(struct nfsd3_##rest##res),		\
+   0,						\
+   cache,					\
+   respsize,					\
+ }
+
+#define ST 1		/* status*/
+#define AT 21		/* attributes */
+#define pAT (1+AT)	/* post attributes - conditional */
+#define ACL (1+NFS_ACL_MAX_ENTRIES*3)  /* Access Control List */
+
+static struct svc_procedure		nfsd_acl_procedures2[] = {
+  PROC(null,	void,		void,		void,	  RC_NOCACHE, ST),
+  PROC(getacl,	getacl,		getacl,		getacl,	  RC_NOCACHE, ST+1+2*(1+ACL)),
+  PROC(setacl,	setacl,		attrstat,	fhandle,  RC_NOCACHE, ST+AT),
+  PROC(getattr, fhandle,	attrstat,	fhandle,  RC_NOCACHE, ST+AT),
+  PROC(access,	access,		access,		fhandle,  RC_NOCACHE, ST+AT+1),
+};
+
+struct svc_version	nfsd_acl_version2 = {
+		.vs_vers	= 2,
+		.vs_nproc	= 5,
+		.vs_proc	= nfsd_acl_procedures2,
+		.vs_dispatch	= nfsd_dispatch,
+		.vs_xdrsize	= NFS3_SVC_XDRSIZE,
+};
diff --git a/fs/nfsd/nfs3acl.c b/fs/nfsd/nfs3acl.c
new file mode 100644
index 00000000000..64ba40572fe
--- /dev/null
+++ b/fs/nfsd/nfs3acl.c
@@ -0,0 +1,267 @@
+/*
+ * linux/fs/nfsd/nfs3acl.c
+ *
+ * Process version 3 NFSACL requests.
+ *
+ * Copyright (C) 2002-2003 Andreas Gruenbacher <agruen@suse.de>
+ */
+
+#include <linux/sunrpc/svc.h>
+#include <linux/nfs3.h>
+#include <linux/nfsd/nfsd.h>
+#include <linux/nfsd/cache.h>
+#include <linux/nfsd/xdr3.h>
+#include <linux/posix_acl.h>
+#include <linux/nfsacl.h>
+
+#define RETURN_STATUS(st)	{ resp->status = (st); return (st); }
+
+/*
+ * NULL call.
+ */
+static int
+nfsd3_proc_null(struct svc_rqst *rqstp, void *argp, void *resp)
+{
+	return nfs_ok;
+}
+
+/*
+ * Get the Access and/or Default ACL of a file.
+ */
+static int nfsd3_proc_getacl(struct svc_rqst * rqstp,
+		struct nfsd3_getaclargs *argp, struct nfsd3_getaclres *resp)
+{
+	svc_fh *fh;
+	struct posix_acl *acl;
+	int nfserr = 0;
+
+	fh = fh_copy(&resp->fh, &argp->fh);
+	if ((nfserr = fh_verify(rqstp, &resp->fh, 0, MAY_NOP)))
+		RETURN_STATUS(nfserr_inval);
+
+	if (argp->mask & ~(NFS_ACL|NFS_ACLCNT|NFS_DFACL|NFS_DFACLCNT))
+		RETURN_STATUS(nfserr_inval);
+	resp->mask = argp->mask;
+
+	if (resp->mask & (NFS_ACL|NFS_ACLCNT)) {
+		acl = nfsd_get_posix_acl(fh, ACL_TYPE_ACCESS);
+		if (IS_ERR(acl)) {
+			int err = PTR_ERR(acl);
+
+			if (err == -ENODATA || err == -EOPNOTSUPP)
+				acl = NULL;
+			else {
+				nfserr = nfserrno(err);
+				goto fail;
+			}
+		}
+		if (acl == NULL) {
+			/* Solaris returns the inode's minimum ACL. */
+
+			struct inode *inode = fh->fh_dentry->d_inode;
+			acl = posix_acl_from_mode(inode->i_mode, GFP_KERNEL);
+		}
+		resp->acl_access = acl;
+	}
+	if (resp->mask & (NFS_DFACL|NFS_DFACLCNT)) {
+		/* Check how Solaris handles requests for the Default ACL
+		   of a non-directory! */
+
+		acl = nfsd_get_posix_acl(fh, ACL_TYPE_DEFAULT);
+		if (IS_ERR(acl)) {
+			int err = PTR_ERR(acl);
+
+			if (err == -ENODATA || err == -EOPNOTSUPP)
+				acl = NULL;
+			else {
+				nfserr = nfserrno(err);
+				goto fail;
+			}
+		}
+		resp->acl_default = acl;
+	}
+
+	/* resp->acl_{access,default} are released in nfs3svc_release_getacl. */
+	RETURN_STATUS(0);
+
+fail:
+	posix_acl_release(resp->acl_access);
+	posix_acl_release(resp->acl_default);
+	RETURN_STATUS(nfserr);
+}
+
+/*
+ * Set the Access and/or Default ACL of a file.
+ */
+static int nfsd3_proc_setacl(struct svc_rqst * rqstp,
+		struct nfsd3_setaclargs *argp,
+		struct nfsd3_attrstat *resp)
+{
+	svc_fh *fh;
+	int nfserr = 0;
+
+	fh = fh_copy(&resp->fh, &argp->fh);
+	nfserr = fh_verify(rqstp, &resp->fh, 0, MAY_NOP);
+
+	if (!nfserr) {
+		nfserr = nfserrno( nfsd_set_posix_acl(
+			fh, ACL_TYPE_ACCESS, argp->acl_access) );
+	}
+	if (!nfserr) {
+		nfserr = nfserrno( nfsd_set_posix_acl(
+			fh, ACL_TYPE_DEFAULT, argp->acl_default) );
+	}
+
+	/* argp->acl_{access,default} may have been allocated in
+	   nfs3svc_decode_setaclargs. */
+	posix_acl_release(argp->acl_access);
+	posix_acl_release(argp->acl_default);
+	RETURN_STATUS(nfserr);
+}
+
+/*
+ * XDR decode functions
+ */
+static int nfs3svc_decode_getaclargs(struct svc_rqst *rqstp, u32 *p,
+		struct nfsd3_getaclargs *args)
+{
+	if (!(p = nfs3svc_decode_fh(p, &args->fh)))
+		return 0;
+	args->mask = ntohl(*p); p++;
+
+	return xdr_argsize_check(rqstp, p);
+}
+
+
+static int nfs3svc_decode_setaclargs(struct svc_rqst *rqstp, u32 *p,
+		struct nfsd3_setaclargs *args)
+{
+	struct kvec *head = rqstp->rq_arg.head;
+	unsigned int base;
+	int n;
+
+	if (!(p = nfs3svc_decode_fh(p, &args->fh)))
+		return 0;
+	args->mask = ntohl(*p++);
+	if (args->mask & ~(NFS_ACL|NFS_ACLCNT|NFS_DFACL|NFS_DFACLCNT) ||
+	    !xdr_argsize_check(rqstp, p))
+		return 0;
+
+	base = (char *)p - (char *)head->iov_base;
+	n = nfsacl_decode(&rqstp->rq_arg, base, NULL,
+			  (args->mask & NFS_ACL) ?
+			  &args->acl_access : NULL);
+	if (n > 0)
+		n = nfsacl_decode(&rqstp->rq_arg, base + n, NULL,
+				  (args->mask & NFS_DFACL) ?
+				  &args->acl_default : NULL);
+	return (n > 0);
+}
+
+/*
+ * XDR encode functions
+ */
+
+/* GETACL */
+static int nfs3svc_encode_getaclres(struct svc_rqst *rqstp, u32 *p,
+		struct nfsd3_getaclres *resp)
+{
+	struct dentry *dentry = resp->fh.fh_dentry;
+
+	p = nfs3svc_encode_post_op_attr(rqstp, p, &resp->fh);
+	if (resp->status == 0 && dentry && dentry->d_inode) {
+		struct inode *inode = dentry->d_inode;
+		int w = nfsacl_size(
+			(resp->mask & NFS_ACL)   ? resp->acl_access  : NULL,
+			(resp->mask & NFS_DFACL) ? resp->acl_default : NULL);
+		struct kvec *head = rqstp->rq_res.head;
+		unsigned int base;
+		int n;
+
+		*p++ = htonl(resp->mask);
+		if (!xdr_ressize_check(rqstp, p))
+			return 0;
+		base = (char *)p - (char *)head->iov_base;
+
+		rqstp->rq_res.page_len = w;
+		while (w > 0) {
+			if (!svc_take_res_page(rqstp))
+				return 0;
+			w -= PAGE_SIZE;
+		}
+
+		n = nfsacl_encode(&rqstp->rq_res, base, inode,
+				  resp->acl_access,
+				  resp->mask & NFS_ACL, 0);
+		if (n > 0)
+			n = nfsacl_encode(&rqstp->rq_res, base + n, inode,
+					  resp->acl_default,
+					  resp->mask & NFS_DFACL,
+					  NFS_ACL_DEFAULT);
+		if (n <= 0)
+			return 0;
+	} else
+		if (!xdr_ressize_check(rqstp, p))
+			return 0;
+
+	return 1;
+}
+
+/* SETACL */
+static int nfs3svc_encode_setaclres(struct svc_rqst *rqstp, u32 *p,
+		struct nfsd3_attrstat *resp)
+{
+	p = nfs3svc_encode_post_op_attr(rqstp, p, &resp->fh);
+
+	return xdr_ressize_check(rqstp, p);
+}
+
+/*
+ * XDR release functions
+ */
+static int nfs3svc_release_getacl(struct svc_rqst *rqstp, u32 *p,
+		struct nfsd3_getaclres *resp)
+{
+	fh_put(&resp->fh);
+	posix_acl_release(resp->acl_access);
+	posix_acl_release(resp->acl_default);
+	return 1;
+}
+
+#define nfs3svc_decode_voidargs		NULL
+#define nfs3svc_release_void		NULL
+#define nfsd3_setaclres			nfsd3_attrstat
+#define nfsd3_voidres			nfsd3_voidargs
+struct nfsd3_voidargs { int dummy; };
+
+#define PROC(name, argt, rest, relt, cache, respsize)	\
+ { (svc_procfunc) nfsd3_proc_##name,		\
+   (kxdrproc_t) nfs3svc_decode_##argt##args,	\
+   (kxdrproc_t) nfs3svc_encode_##rest##res,	\
+   (kxdrproc_t) nfs3svc_release_##relt,		\
+   sizeof(struct nfsd3_##argt##args),		\
+   sizeof(struct nfsd3_##rest##res),		\
+   0,						\
+   cache,					\
+   respsize,					\
+ }
+
+#define ST 1		/* status*/
+#define AT 21		/* attributes */
+#define pAT (1+AT)	/* post attributes - conditional */
+#define ACL (1+NFS_ACL_MAX_ENTRIES*3)  /* Access Control List */
+
+static struct svc_procedure		nfsd_acl_procedures3[] = {
+  PROC(null,	void,		void,		void,	  RC_NOCACHE, ST),
+  PROC(getacl,	getacl,		getacl,		getacl,	  RC_NOCACHE, ST+1+2*(1+ACL)),
+  PROC(setacl,	setacl,		setacl,		fhandle,  RC_NOCACHE, ST+pAT),
+};
+
+struct svc_version	nfsd_acl_version3 = {
+		.vs_vers	= 3,
+		.vs_nproc	= 3,
+		.vs_proc	= nfsd_acl_procedures3,
+		.vs_dispatch	= nfsd_dispatch,
+		.vs_xdrsize	= NFS3_SVC_XDRSIZE,
+};
+
diff --git a/fs/nfsd/nfs3xdr.c b/fs/nfsd/nfs3xdr.c
index 11f806835c5..e0e134d6bab 100644
--- a/fs/nfsd/nfs3xdr.c
+++ b/fs/nfsd/nfs3xdr.c
@@ -71,6 +71,12 @@ decode_fh(u32 *p, struct svc_fh *fhp)
 	return p + XDR_QUADLEN(size);
 }
 
+/* Helper function for NFSv3 ACL code */
+u32 *nfs3svc_decode_fh(u32 *p, struct svc_fh *fhp)
+{
+	return decode_fh(p, fhp);
+}
+
 static inline u32 *
 encode_fh(u32 *p, struct svc_fh *fhp)
 {
@@ -233,6 +239,13 @@ encode_post_op_attr(struct svc_rqst *rqstp, u32 *p, struct svc_fh *fhp)
 	return p;
 }
 
+/* Helper for NFSv3 ACLs */
+u32 *
+nfs3svc_encode_post_op_attr(struct svc_rqst *rqstp, u32 *p, struct svc_fh *fhp)
+{
+	return encode_post_op_attr(rqstp, p, fhp);
+}
+
 /*
  * Enocde weak cache consistency data
  */
diff --git a/fs/nfsd/nfs4acl.c b/fs/nfsd/nfs4acl.c
index 11ebf6c4aa5..4a2105552ac 100644
--- a/fs/nfsd/nfs4acl.c
+++ b/fs/nfsd/nfs4acl.c
@@ -125,7 +125,7 @@ static short ace2type(struct nfs4_ace *);
 static int _posix_to_nfsv4_one(struct posix_acl *, struct nfs4_acl *, unsigned int);
 static struct posix_acl *_nfsv4_to_posix_one(struct nfs4_acl *, unsigned int);
 int nfs4_acl_add_ace(struct nfs4_acl *, u32, u32, u32, int, uid_t);
-int nfs4_acl_split(struct nfs4_acl *, struct nfs4_acl *);
+static int nfs4_acl_split(struct nfs4_acl *, struct nfs4_acl *);
 
 struct nfs4_acl *
 nfs4_acl_posix_to_nfsv4(struct posix_acl *pacl, struct posix_acl *dpacl,
@@ -775,7 +775,7 @@ out_err:
 	return pacl;
 }
 
-int
+static int
 nfs4_acl_split(struct nfs4_acl *acl, struct nfs4_acl *dacl)
 {
 	struct list_head *h, *n;
diff --git a/fs/nfsd/nfs4callback.c b/fs/nfsd/nfs4callback.c
index 1a55dfcb74b..583c0710e45 100644
--- a/fs/nfsd/nfs4callback.c
+++ b/fs/nfsd/nfs4callback.c
@@ -54,7 +54,6 @@
 
 /* declarations */
 static void nfs4_cb_null(struct rpc_task *task);
-extern spinlock_t recall_lock;
 
 /* Index of predefined Linux callback client operations */
 
@@ -329,12 +328,12 @@ out:
         .p_bufsiz = MAX(NFS4_##argtype##_sz,NFS4_##restype##_sz) << 2,  \
 }
 
-struct rpc_procinfo     nfs4_cb_procedures[] = {
+static struct rpc_procinfo     nfs4_cb_procedures[] = {
     PROC(CB_NULL,      NULL,     enc_cb_null,     dec_cb_null),
     PROC(CB_RECALL,    COMPOUND,   enc_cb_recall,      dec_cb_recall),
 };
 
-struct rpc_version              nfs_cb_version4 = {
+static struct rpc_version       nfs_cb_version4 = {
         .number                 = 1,
         .nrprocs                = sizeof(nfs4_cb_procedures)/sizeof(nfs4_cb_procedures[0]),
         .procs                  = nfs4_cb_procedures
@@ -348,7 +347,7 @@ static struct rpc_version *	nfs_cb_version[] = {
 /*
  * Use the SETCLIENTID credential
  */
-struct rpc_cred *
+static struct rpc_cred *
 nfsd4_lookupcred(struct nfs4_client *clp, int taskflags)
 {
         struct auth_cred acred;
@@ -387,9 +386,7 @@ nfsd4_probe_callback(struct nfs4_client *clp)
 	char                    hostname[32];
 	int status;
 
-	dprintk("NFSD: probe_callback. cb_parsed %d cb_set %d\n",
-			cb->cb_parsed, atomic_read(&cb->cb_set));
-	if (!cb->cb_parsed || atomic_read(&cb->cb_set))
+	if (atomic_read(&cb->cb_set))
 		return;
 
 	/* Initialize address */
@@ -427,10 +424,10 @@ nfsd4_probe_callback(struct nfs4_client *clp)
 	 * XXX AUTH_UNIX only - need AUTH_GSS....
 	 */
 	sprintf(hostname, "%u.%u.%u.%u", NIPQUAD(addr.sin_addr.s_addr));
-	clnt = rpc_create_client(xprt, hostname, program, 1, RPC_AUTH_UNIX);
+	clnt = rpc_new_client(xprt, hostname, program, 1, RPC_AUTH_UNIX);
 	if (IS_ERR(clnt)) {
 		dprintk("NFSD: couldn't create callback client\n");
-		goto out_xprt;
+		goto out_err;
 	}
 	clnt->cl_intr = 0;
 	clnt->cl_softrtry = 1;
@@ -465,8 +462,6 @@ out_rpciod:
 out_clnt:
 	rpc_shutdown_client(clnt);
 	goto out_err;
-out_xprt:
-	xprt_destroy(xprt);
 out_err:
 	dprintk("NFSD: warning: no callback path to client %.*s\n",
 		(int)clp->cl_name.len, clp->cl_name.data);
diff --git a/fs/nfsd/nfs4idmap.c b/fs/nfsd/nfs4idmap.c
index 4ba540841cf..5605a26efc5 100644
--- a/fs/nfsd/nfs4idmap.c
+++ b/fs/nfsd/nfs4idmap.c
@@ -104,7 +104,7 @@ ent_update(struct ent *new, struct ent *itm)
 	ent_init(new, itm);
 }
 
-void
+static void
 ent_put(struct cache_head *ch, struct cache_detail *cd)
 {
 	if (cache_put(ch, cd)) {
@@ -186,7 +186,7 @@ warn_no_idmapd(struct cache_detail *detail)
 static int         idtoname_parse(struct cache_detail *, char *, int);
 static struct ent *idtoname_lookup(struct ent *, int);
 
-struct cache_detail idtoname_cache = {
+static struct cache_detail idtoname_cache = {
 	.hash_size	= ENT_HASHMAX,
 	.hash_table	= idtoname_table,
 	.name		= "nfs4.idtoname",
@@ -277,7 +277,7 @@ nametoid_hash(struct ent *ent)
 	return hash_str(ent->name, ENT_HASHBITS);
 }
 
-void
+static void
 nametoid_request(struct cache_detail *cd, struct cache_head *ch, char **bpp,
     int *blen)
 {
@@ -317,9 +317,9 @@ nametoid_show(struct seq_file *m, struct cache_detail *cd, struct cache_head *h)
 }
 
 static struct ent *nametoid_lookup(struct ent *, int);
-int                nametoid_parse(struct cache_detail *, char *, int);
+static int         nametoid_parse(struct cache_detail *, char *, int);
 
-struct cache_detail nametoid_cache = {
+static struct cache_detail nametoid_cache = {
 	.hash_size	= ENT_HASHMAX,
 	.hash_table	= nametoid_table,
 	.name		= "nfs4.nametoid",
@@ -330,7 +330,7 @@ struct cache_detail nametoid_cache = {
 	.warn_no_listener = warn_no_idmapd,
 };
 
-int
+static int
 nametoid_parse(struct cache_detail *cd, char *buf, int buflen)
 {
 	struct ent ent, *res;
diff --git a/fs/nfsd/nfs4proc.c b/fs/nfsd/nfs4proc.c
index e8158741e8b..d71f14517b9 100644
--- a/fs/nfsd/nfs4proc.c
+++ b/fs/nfsd/nfs4proc.c
@@ -45,6 +45,7 @@
 #include <linux/param.h>
 #include <linux/major.h>
 #include <linux/slab.h>
+#include <linux/file.h>
 
 #include <linux/sunrpc/svc.h>
 #include <linux/nfsd/nfsd.h>
@@ -198,6 +199,11 @@ nfsd4_open(struct svc_rqst *rqstp, struct svc_fh *current_fh, struct nfsd4_open
 	if (status)
 		goto out;
 	switch (open->op_claim_type) {
+		case NFS4_OPEN_CLAIM_DELEGATE_CUR:
+			status = nfserr_inval;
+			if (open->op_create)
+				goto out;
+			/* fall through */
 		case NFS4_OPEN_CLAIM_NULL:
 			/*
 			 * (1) set CURRENT_FH to the file being opened,
@@ -220,7 +226,6 @@ nfsd4_open(struct svc_rqst *rqstp, struct svc_fh *current_fh, struct nfsd4_open
 			if (status)
 				goto out;
 			break;
-		case NFS4_OPEN_CLAIM_DELEGATE_CUR:
              	case NFS4_OPEN_CLAIM_DELEGATE_PREV:
 			printk("NFSD: unsupported OPEN claim type %d\n",
 				open->op_claim_type);
@@ -473,26 +478,27 @@ static inline int
 nfsd4_read(struct svc_rqst *rqstp, struct svc_fh *current_fh, struct nfsd4_read *read)
 {
 	int status;
-	struct file *filp = NULL;
 
 	/* no need to check permission - this will be done in nfsd_read() */
 
+	read->rd_filp = NULL;
 	if (read->rd_offset >= OFFSET_MAX)
 		return nfserr_inval;
 
 	nfs4_lock_state();
 	/* check stateid */
 	if ((status = nfs4_preprocess_stateid_op(current_fh, &read->rd_stateid,
-					CHECK_FH | RD_STATE, &filp))) {
+				CHECK_FH | RD_STATE, &read->rd_filp))) {
 		dprintk("NFSD: nfsd4_read: couldn't process stateid!\n");
 		goto out;
 	}
+	if (read->rd_filp)
+		get_file(read->rd_filp);
 	status = nfs_ok;
 out:
 	nfs4_unlock_state();
 	read->rd_rqstp = rqstp;
 	read->rd_fhp = current_fh;
-	read->rd_filp = filp;
 	return status;
 }
 
@@ -532,6 +538,8 @@ nfsd4_remove(struct svc_rqst *rqstp, struct svc_fh *current_fh, struct nfsd4_rem
 {
 	int status;
 
+	if (nfs4_in_grace())
+		return nfserr_grace;
 	status = nfsd_unlink(rqstp, current_fh, 0, remove->rm_name, remove->rm_namelen);
 	if (status == nfserr_symlink)
 		return nfserr_notdir;
@@ -550,6 +558,9 @@ nfsd4_rename(struct svc_rqst *rqstp, struct svc_fh *current_fh,
 
 	if (!save_fh->fh_dentry)
 		return status;
+	if (nfs4_in_grace() && !(save_fh->fh_export->ex_flags
+					& NFSEXP_NOSUBTREECHECK))
+		return nfserr_grace;
 	status = nfsd_rename(rqstp, save_fh, rename->rn_sname,
 			     rename->rn_snamelen, current_fh,
 			     rename->rn_tname, rename->rn_tnamelen);
@@ -624,6 +635,8 @@ nfsd4_write(struct svc_rqst *rqstp, struct svc_fh *current_fh, struct nfsd4_writ
 		dprintk("NFSD: nfsd4_write: couldn't process stateid!\n");
 		goto out;
 	}
+	if (filp)
+		get_file(filp);
 	nfs4_unlock_state();
 
 	write->wr_bytes_written = write->wr_buflen;
@@ -635,6 +648,8 @@ nfsd4_write(struct svc_rqst *rqstp, struct svc_fh *current_fh, struct nfsd4_writ
 	status =  nfsd_write(rqstp, current_fh, filp, write->wr_offset,
 			write->wr_vec, write->wr_vlen, write->wr_buflen,
 			&write->wr_how_written);
+	if (filp)
+		fput(filp);
 
 	if (status == nfserr_symlink)
 		status = nfserr_inval;
@@ -923,6 +938,9 @@ encode_op:
 			nfs4_put_stateowner(replay_owner);
 			replay_owner = NULL;
 		}
+		/* XXX Ugh, we need to get rid of this kind of special case: */
+		if (op->opnum == OP_READ && op->u.read.rd_filp)
+			fput(op->u.read.rd_filp);
 	}
 
 out:
diff --git a/fs/nfsd/nfs4recover.c b/fs/nfsd/nfs4recover.c
new file mode 100644
index 00000000000..095f1740f3a
--- /dev/null
+++ b/fs/nfsd/nfs4recover.c
@@ -0,0 +1,431 @@
+/*
+*  linux/fs/nfsd/nfs4recover.c
+*
+*  Copyright (c) 2004 The Regents of the University of Michigan.
+*  All rights reserved.
+*
+*  Andy Adamson <andros@citi.umich.edu>
+*
+*  Redistribution and use in source and binary forms, with or without
+*  modification, are permitted provided that the following conditions
+*  are met:
+*
+*  1. Redistributions of source code must retain the above copyright
+*     notice, this list of conditions and the following disclaimer.
+*  2. Redistributions in binary form must reproduce the above copyright
+*     notice, this list of conditions and the following disclaimer in the
+*     documentation and/or other materials provided with the distribution.
+*  3. Neither the name of the University nor the names of its
+*     contributors may be used to endorse or promote products derived
+*     from this software without specific prior written permission.
+*
+*  THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
+*  WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+*  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+*  DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+*  FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+*  CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+*  SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
+*  BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+*  LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+*  NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+*  SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*
+*/
+
+
+#include <linux/sunrpc/svc.h>
+#include <linux/nfsd/nfsd.h>
+#include <linux/nfs4.h>
+#include <linux/nfsd/state.h>
+#include <linux/nfsd/xdr4.h>
+#include <linux/param.h>
+#include <linux/file.h>
+#include <linux/namei.h>
+#include <asm/uaccess.h>
+#include <asm/scatterlist.h>
+#include <linux/crypto.h>
+
+
+#define NFSDDBG_FACILITY                NFSDDBG_PROC
+
+/* Globals */
+static struct nameidata rec_dir;
+static int rec_dir_init = 0;
+
+static void
+nfs4_save_user(uid_t *saveuid, gid_t *savegid)
+{
+	*saveuid = current->fsuid;
+	*savegid = current->fsgid;
+	current->fsuid = 0;
+	current->fsgid = 0;
+}
+
+static void
+nfs4_reset_user(uid_t saveuid, gid_t savegid)
+{
+	current->fsuid = saveuid;
+	current->fsgid = savegid;
+}
+
+static void
+md5_to_hex(char *out, char *md5)
+{
+	int i;
+
+	for (i=0; i<16; i++) {
+		unsigned char c = md5[i];
+
+		*out++ = '0' + ((c&0xf0)>>4) + (c>=0xa0)*('a'-'9'-1);
+		*out++ = '0' + (c&0x0f) + ((c&0x0f)>=0x0a)*('a'-'9'-1);
+	}
+	*out = '\0';
+}
+
+int
+nfs4_make_rec_clidname(char *dname, struct xdr_netobj *clname)
+{
+	struct xdr_netobj cksum;
+	struct crypto_tfm *tfm;
+	struct scatterlist sg[1];
+	int status = nfserr_resource;
+
+	dprintk("NFSD: nfs4_make_rec_clidname for %.*s\n",