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-rw-r--r--fs/nfsd/Makefile4
-rw-r--r--fs/nfsd/nfs2acl.c336
-rw-r--r--fs/nfsd/nfs3acl.c267
-rw-r--r--fs/nfsd/nfs3xdr.c13
-rw-r--r--fs/nfsd/nfs4acl.c4
-rw-r--r--fs/nfsd/nfs4callback.c17
-rw-r--r--fs/nfsd/nfs4idmap.c12
-rw-r--r--fs/nfsd/nfs4proc.c26
-rw-r--r--fs/nfsd/nfs4recover.c431
-rw-r--r--fs/nfsd/nfs4state.c1028
-rw-r--r--fs/nfsd/nfs4xdr.c11
-rw-r--r--fs/nfsd/nfsctl.c28
-rw-r--r--fs/nfsd/nfsproc.c1
-rw-r--r--fs/nfsd/nfssvc.c30
-rw-r--r--fs/nfsd/nfsxdr.c11
-rw-r--r--fs/nfsd/vfs.c116
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",
+ clname->len, clname->data);
+ tfm = crypto_alloc_tfm("md5", 0);
+ if (tfm == NULL)
+ goto out;
+ cksum.len = crypto_tfm_alg_digestsize(tfm);
+ cksum.data = kmalloc(cksum.len, GFP_KERNEL);
+ if (cksum.data == NULL)
+ goto out;
+ crypto_digest_init(tfm);
+
+ sg[0].page = virt_to_page(clname->data);
+ sg[0].offset = offset_in_page(clname->data);
+ sg[0].length = clname->len;
+
+ crypto_digest_update(tfm, sg, 1);
+ crypto_digest_final(tfm, cksum.data);
+
+ md5_to_hex(dname, cksum.data);
+
+ kfree(cksum.data);
+ status = nfs_ok;
+out:
+ if (tfm)
+ crypto_free_tfm(tfm);
+ return status;
+}
+
+static int
+nfsd4_rec_fsync(struct dentry *dentry)
+{
+ struct file *filp;
+ int status = nfs_ok;
+
+ dprintk("NFSD: nfs4_fsync_rec_dir\n");
+ filp = dentry_open(dget(dentry), mntget(rec_dir.mnt), O_RDWR);
+ if (IS_ERR(filp)) {
+ status = PTR_ERR(filp);
+ goto out;
+ }
+ if (filp->f_op && filp->f_op->fsync)
+ status = filp->f_op->fsync(filp, filp->f_dentry, 0);
+ fput(filp);
+out:
+ if (status)
+ printk("nfsd4: unable to sync recovery directory\n");
+ return status;
+}
+
+int
+nfsd4_create_clid_dir(struct nfs4_client *clp)
+{
+ char *dname = clp->cl_recdir;
+ struct dentry *dentry;
+ uid_t uid;
+ gid_t gid;
+ int status;
+
+ dprintk("NFSD: nfsd4_create_clid_dir for \"%s\"\n", dname);
+
+ if (!rec_dir_init || clp->cl_firststate)
+ return 0;
+
+ nfs4_save_user(&uid, &gid);
+
+ /* lock the parent */
+ down(&rec_dir.dentry->d_inode->i_sem);
+
+ dentry = lookup_one_len(dname, rec_dir.dentry, HEXDIR_LEN-1);
+ if (IS_ERR(dentry)) {
+ status = PTR_ERR(dentry);
+ goto out_unlock;
+ }
+ status = -EEXIST;
+ if (dentry->d_inode) {
+ dprintk("NFSD: nfsd4_create_clid_dir: DIRECTORY EXISTS\n");
+ goto out_put;
+ }
+ status = vfs_mkdir(rec_dir.dentry->d_inode, dentry, S_IRWXU);
+out_put:
+ dput(dentry);
+out_unlock:
+ up(&rec_dir.dentry->d_inode->i_sem);
+ if (status == 0) {
+ clp->cl_firststate = 1;
+ status = nfsd4_rec_fsync(rec_dir.dentry);
+ }
+ nfs4_reset_user(uid, gid);
+ dprintk("NFSD: nfsd4_create_clid_dir returns %d\n", status);
+ return status;
+}
+
+typedef int (recdir_func)(struct dentry *, struct dentry *);
+
+struct dentry_list {
+ struct dentry *dentry;
+ struct list_head list;
+};
+
+struct dentry_list_arg {
+ struct list_head dentries;
+ struct dentry *parent;
+};
+
+static int
+nfsd4_build_dentrylist(void *arg, const char *name, int namlen,
+ loff_t offset, ino_t ino, unsigned int d_type)
+{
+ struct dentry_list_arg *dla = arg;
+ struct list_head *dentries = &dla->dentries;
+ struct dentry *parent = dla->parent;
+ struct dentry *dentry;
+ struct dentry_list *child;
+
+ if (name && isdotent(name, namlen))
+ return nfs_ok;
+ dentry = lookup_one_len(name, parent, namlen);
+ if (IS_ERR(dentry))
+ return PTR_ERR(dentry);
+ child = kmalloc(sizeof(*child), GFP_KERNEL);
+ if (child == NULL)
+ return -ENOMEM;
+ child->dentry = dentry;
+ list_add(&child->list, dentries);
+ return 0;
+}
+
+static int
+nfsd4_list_rec_dir(struct dentry *dir, recdir_func *f)
+{
+ struct file *filp;
+ struct dentry_list_arg dla = {
+ .parent = dir,
+ };
+ struct list_head *dentries = &dla.dentries;
+ struct dentry_list *child;
+ uid_t uid;
+ gid_t gid;
+ int status;
+
+ if (!rec_dir_init)
+ return 0;
+
+ nfs4_save_user(&uid, &gid);
+
+ filp = dentry_open(dget(dir), mntget(rec_dir.mnt),
+ O_RDWR);
+ status = PTR_ERR(filp);
+ if (IS_ERR(filp))
+ goto out;
+ INIT_LIST_HEAD(dentries);
+ status = vfs_readdir(filp, nfsd4_build_dentrylist, &dla);
+ fput(filp);
+ while (!list_empty(dentries)) {
+ child = list_entry(dentries->next, struct dentry_list, list);
+ status = f(dir, child->dentry);
+ if (status)
+ goto out;
+ list_del(&child->list);
+ dput(child->dentry);
+ kfree(child);
+ }
+out:
+ while (!list_empty(dentries)) {
+ child = list_entry(dentries->next, struct dentry_list, list);
+ list_del(&child->list);
+ dput(child->dentry);
+ kfree(child);
+ }
+ nfs4_reset_user(uid, gid);
+ return status;
+}
+
+static int
+nfsd4_remove_clid_file(struct dentry *dir, struct dentry *dentry)
+{
+ int status;
+
+ if (!S_ISREG(dir->d_inode->i_mode)) {
+ printk("nfsd4: non-file found in client recovery directory\n");
+ return -EINVAL;
+ }
+ down(&dir->d_inode->i_sem);
+ status = vfs_unlink(dir->d_inode, dentry);
+ up(&dir->d_inode->i_sem);
+ return status;
+}
+
+static int
+nfsd4_clear_clid_dir(struct dentry *dir, struct dentry *dentry)
+{
+ int status;
+
+ /* For now this directory should already be empty, but we empty it of
+ * any regular files anyway, just in case the directory was created by
+ * a kernel from the future.... */
+ nfsd4_list_rec_dir(dentry, nfsd4_remove_clid_file);
+ down(&dir->d_inode->i_sem);
+ status = vfs_rmdir(dir->d_inode, dentry);
+ up(&dir->d_inode->i_sem);
+ return status;
+}
+
+static int
+nfsd4_unlink_clid_dir(char *name, int namlen)
+{
+ struct dentry *dentry;
+ int status;
+
+ dprintk("NFSD: nfsd4_unlink_clid_dir. name %.*s\n", namlen, name);
+
+ dentry = lookup_one_len(name, rec_dir.dentry, namlen);
+ if (IS_ERR(dentry)) {
+ status = PTR_ERR(dentry);
+ return status;
+ }
+ status = -ENOENT;
+ if (!dentry->d_inode)
+ goto out;
+
+ status = nfsd4_clear_clid_dir(rec_dir.dentry, dentry);
+out:
+ dput(dentry);
+ return status;
+}
+
+void
+nfsd4_remove_clid_dir(struct nfs4_client *clp)
+{
+ uid_t uid;
+ gid_t gid;
+ int status;
+
+ if (!rec_dir_init || !clp->cl_firststate)
+ return;
+
+ nfs4_save_user(&uid, &gid);
+ status = nfsd4_unlink_clid_dir(clp->cl_recdir, HEXDIR_LEN-1);
+ nfs4_reset_user(uid, gid);
+ if (status == 0)
+ status = nfsd4_rec_fsync(rec_dir.dentry);
+ if (status)
+ printk("NFSD: Failed to remove expired client state directory"
+ " %.*s\n", HEXDIR_LEN, clp->cl_recdir);
+ return;
+}
+
+static int
+purge_old(struct dentry *parent, struct dentry *child)
+{
+ int status;
+
+ if (nfs4_has_reclaimed_state(child->d_name.name))
+ return nfs_ok;
+
+ status = nfsd4_clear_clid_dir(parent, child);
+ if (status)
+ printk("failed to remove client recovery directory %s\n",
+ child->d_name.name);
+ /* Keep trying, success or failure: */
+ return nfs_ok;
+}
+
+void
+nfsd4_recdir_purge_old(void) {
+ int status;
+
+ if (!rec_dir_init)
+ return;
+ status = nfsd4_list_rec_dir(rec_dir.dentry, purge_old);
+ if (status == 0)
+ status = nfsd4_rec_fsync(rec_dir.dentry);
+ if (status)
+ printk("nfsd4: failed to purge old clients from recovery"
+ " directory %s\n", rec_dir.dentry->d_name.name);
+ return;
+}
+
+static int
+load_recdir(struct dentry *parent, struct dentry *child)
+{
+ if (child->d_name.len != HEXDIR_LEN - 1) {
+ printk("nfsd4: illegal name %s in recovery directory\n",
+ child->d_name.name);
+ /* Keep trying; maybe the others are OK: */
+ return nfs_ok;
+ }
+ nfs4_client_to_reclaim(child->d_name.name);
+ return nfs_ok;
+}
+
+int
+nfsd4_recdir_load(void) {
+ int status;
+
+ status = nfsd4_list_rec_dir(rec_dir.dentry, load_recdir);
+ if (status)
+ printk("nfsd4: failed loading clients from recovery"
+ " directory %s\n", rec_dir.dentry->d_name.name);
+ return status;
+}
+
+/*
+ * Hold reference to the recovery directory.
+ */
+
+void
+nfsd4_init_recdir(char *rec_dirname)
+{
+ uid_t uid = 0;
+ gid_t gid = 0;
+ int status;
+
+ printk("NFSD: Using %s as the NFSv4 state recovery directory\n",
+ rec_dirname);
+
+ BUG_ON(rec_dir_init);
+
+ nfs4_save_user(&uid, &gid);
+
+ status = path_lookup(rec_dirname, LOOKUP_FOLLOW, &rec_dir);
+ if (status == -ENOENT)
+ printk("NFSD: recovery directory %s doesn't exist\n",
+ rec_dirname);
+
+ if (!status)
+ rec_dir_init = 1;
+ nfs4_reset_user(uid, gid);
+}
+
+void
+nfsd4_shutdown_recdir(void)
+{
+ if (!rec_dir_init)
+ return;
+ rec_dir_init = 0;
+ path_release(&rec_dir);
+}
diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c
index 75e8b137580..89e36526d7f 100644
--- a/fs/nfsd/nfs4state.c
+++ b/fs/nfsd/nfs4state.c
@@ -48,39 +48,32 @@
#include <linux/nfs4.h>
#include <linux/nfsd/state.h>
#include <linux/nfsd/xdr4.h>
+#include <linux/namei.h>
#define NFSDDBG_FACILITY NFSDDBG_PROC
/* Globals */
static time_t lease_time = 90; /* default lease time */
-static time_t old_lease_time = 90; /* past incarnation lease time */
-static u32 nfs4_reclaim_init = 0;
-time_t boot_time;
-static time_t grace_end = 0;
+static time_t user_lease_time = 90;
+static time_t boot_time;
+static int in_grace = 1;
static u32 current_clientid = 1;
static u32 current_ownerid = 1;
static u32 current_fileid = 1;
static u32 current_delegid = 1;
static u32 nfs4_init;
-stateid_t zerostateid; /* bits all 0 */
-stateid_t onestateid; /* bits all 1 */
-
-/* debug counters */
-u32 list_add_perfile = 0;
-u32 list_del_perfile = 0;
-u32 add_perclient = 0;
-u32 del_perclient = 0;
-u32 alloc_file = 0;
-u32 free_file = 0;
-u32 vfsopen = 0;
-u32 vfsclose = 0;
-u32 alloc_delegation= 0;
-u32 free_delegation= 0;
+static stateid_t zerostateid; /* bits all 0 */
+static stateid_t onestateid; /* bits all 1 */
+
+#define ZERO_STATEID(stateid) (!memcmp((stateid), &zerostateid, sizeof(stateid_t)))
+#define ONE_STATEID(stateid) (!memcmp((stateid), &onestateid, sizeof(stateid_t)))
/* forward declarations */
-struct nfs4_stateid * find_stateid(stateid_t *stid, int flags);
+static struct nfs4_stateid * find_stateid(stateid_t *stid, int flags);
static struct nfs4_delegation * find_delegation_stateid(struct inode *ino, stateid_t *stid);
static void release_stateid_lockowners(struct nfs4_stateid *open_stp);
+static char user_recovery_dirname[PATH_MAX] = "/var/lib/nfs/v4recovery";
+static void nfs4_set_recdir(char *recdir);
/* Locking:
*
@@ -90,6 +83,11 @@ static void release_stateid_lockowners(struct nfs4_stateid *open_stp);
*/
static DECLARE_MUTEX(client_sema);
+static kmem_cache_t *stateowner_slab = NULL;
+static kmem_cache_t *file_slab = NULL;
+static kmem_cache_t *stateid_slab = NULL;
+static kmem_cache_t *deleg_slab = NULL;
+
void
nfs4_lock_state(void)
{
@@ -118,16 +116,36 @@ opaque_hashval(const void *ptr, int nbytes)
/* forward declarations */
static void release_stateowner(struct nfs4_stateowner *sop);
static void release_stateid(struct nfs4_stateid *stp, int flags);
-static void release_file(struct nfs4_file *fp);
/*
* Delegation state
*/
/* recall_lock protects the del_recall_lru */
-spinlock_t recall_lock;
+static spinlock_t recall_lock = SPIN_LOCK_UNLOCKED;
static struct list_head del_recall_lru;
+static void
+free_nfs4_file(struct kref *kref)
+{
+ struct nfs4_file *fp = container_of(kref, struct nfs4_file, fi_ref);
+ list_del(&fp->fi_hash);
+ iput(fp->fi_inode);
+ kmem_cache_free(file_slab, fp);
+}
+
+static inline void
+put_nfs4_file(struct nfs4_file *fi)
+{
+ kref_put(&fi->fi_ref, free_nfs4_file);
+}
+
+static inline void
+get_nfs4_file(struct nfs4_file *fi)
+{
+ kref_get(&fi->fi_ref);
+}
+
static struct nfs4_delegation *
alloc_init_deleg(struct nfs4_client *clp, struct nfs4_stateid *stp, struct svc_fh *current_fh, u32 type)
{
@@ -136,13 +154,14 @@ alloc_init_deleg(struct nfs4_client *clp, struct nfs4_stateid *stp, struct svc_f
struct nfs4_callback *cb = &stp->st_stateowner->so_client->cl_callback;
dprintk("NFSD alloc_init_deleg\n");
- if ((dp = kmalloc(sizeof(struct nfs4_delegation),
- GFP_KERNEL)) == NULL)
+ dp = kmem_cache_alloc(deleg_slab, GFP_KERNEL);
+ if (dp == NULL)
return dp;
- INIT_LIST_HEAD(&dp->dl_del_perfile);
- INIT_LIST_HEAD(&dp->dl_del_perclnt);
+ INIT_LIST_HEAD(&dp->dl_perfile);
+ INIT_LIST_HEAD(&dp->dl_perclnt);
INIT_LIST_HEAD(&dp->dl_recall_lru);
dp->dl_client = clp;
+ get_nfs4_file(fp);
dp->dl_file = fp;
dp->dl_flock = NULL;
get_file(stp->st_vfs_file);
@@ -160,9 +179,8 @@ alloc_init_deleg(struct nfs4_client *clp, struct nfs4_stateid *stp, struct svc_f
current_fh->fh_handle.fh_size);
dp->dl_time = 0;
atomic_set(&dp->dl_count, 1);
- list_add(&dp->dl_del_perfile, &fp->fi_del_perfile);
- list_add(&dp->dl_del_perclnt, &clp->cl_del_perclnt);
- alloc_delegation++;
+ list_add(&dp->dl_perfile, &fp->fi_delegations);
+ list_add(&dp->dl_perclnt, &clp->cl_delegations);
return dp;
}
@@ -171,8 +189,8 @@ nfs4_put_delegation(struct nfs4_delegation *dp)
{
if (atomic_dec_and_test(&dp->dl_count)) {
dprintk("NFSD: freeing dp %p\n",dp);
- kfree(dp);
- free_delegation++;
+ put_nfs4_file(dp->dl_file);
+ kmem_cache_free(deleg_slab, dp);
}
}
@@ -193,15 +211,14 @@ nfs4_close_delegation(struct nfs4_delegation *dp)
if (dp->dl_flock)
setlease(filp, F_UNLCK, &dp->dl_flock);
nfsd_close(filp);
- vfsclose++;
}
/* Called under the state lock. */
static void
unhash_delegation(struct nfs4_delegation *dp)
{
- list_del_init(&dp->dl_del_perfile);
- list_del_init(&dp->dl_del_perclnt);
+ list_del_init(&dp->dl_perfile);
+ list_del_init(&dp->dl_perclnt);
spin_lock(&recall_lock);
list_del_init(&dp->dl_recall_lru);
spin_unlock(&recall_lock);
@@ -220,8 +237,8 @@ unhash_delegation(struct nfs4_delegation *dp)
#define clientid_hashval(id) \
((id) & CLIENT_HASH_MASK)
-#define clientstr_hashval(name, namelen) \
- (opaque_hashval((name), (namelen)) & CLIENT_HASH_MASK)
+#define clientstr_hashval(name) \
+ (opaque_hashval((name), 8) & CLIENT_HASH_MASK)
/*
* reclaim_str_hashtbl[] holds known client info from previous reset/reboot
* used in reboot/reset lease grace period processing
@@ -331,11 +348,11 @@ expire_client(struct nfs4_client *clp)
INIT_LIST_HEAD(&reaplist);
spin_lock(&recall_lock);
- while (!list_empty(&clp->cl_del_perclnt)) {
- dp = list_entry(clp->cl_del_perclnt.next, struct nfs4_delegation, dl_del_perclnt);
+ while (!list_empty(&clp->cl_delegations)) {
+ dp = list_entry(clp->cl_delegations.next, struct nfs4_delegation, dl_perclnt);
dprintk("NFSD: expire client. dp %p, fp %p\n", dp,
dp->dl_flock);
- list_del_init(&dp->dl_del_perclnt);
+ list_del_init(&dp->dl_perclnt);
list_move(&dp->dl_recall_lru, &reaplist);
}
spin_unlock(&recall_lock);
@@ -347,26 +364,26 @@ expire_client(struct nfs4_client *clp)
list_del(&clp->cl_idhash);
list_del(&clp->cl_strhash);
list_del(&clp->cl_lru);
- while (!list_empty(&clp->cl_perclient)) {
- sop = list_entry(clp->cl_perclient.next, struct nfs4_stateowner, so_perclient);
+ while (!list_empty(&clp->cl_openowners)) {
+ sop = list_entry(clp->cl_openowners.next, struct nfs4_stateowner, so_perclient);
release_stateowner(sop);
}
put_nfs4_client(clp);
}
static struct nfs4_client *
-create_client(struct xdr_netobj name) {
+create_client(struct xdr_netobj name, char *recdir) {
struct nfs4_client *clp;
if (!(clp = alloc_client(name)))
goto out;
+ memcpy(clp->cl_recdir, recdir, HEXDIR_LEN);
atomic_set(&clp->cl_count, 1);
atomic_set(&clp->cl_callback.cb_set, 0);
- clp->cl_callback.cb_parsed = 0;
INIT_LIST_HEAD(&clp->cl_idhash);
INIT_LIST_HEAD(&clp->cl_strhash);
- INIT_LIST_HEAD(&clp->cl_perclient);
- INIT_LIST_HEAD(&clp->cl_del_perclnt);
+ INIT_LIST_HEAD(&clp->cl_openowners);
+ INIT_LIST_HEAD(&clp->cl_delegations);
INIT_LIST_HEAD(&clp->cl_lru);
out:
return clp;
@@ -392,11 +409,9 @@ copy_cred(struct svc_cred *target, struct svc_cred *source) {
get_group_info(target->cr_group_info);
}
-static int
-cmp_name(struct xdr_netobj *n1, struct xdr_netobj *n2) {
- if (!n1 || !n2)
- return 0;
- return((n1->len == n2->len) && !memcmp(n1->data, n2->data, n2->len));
+static inline int
+same_name(const char *n1, const char *n2) {
+ return 0 == memcmp(n1, n2, HEXDIR_LEN);
}
static int
@@ -446,7 +461,7 @@ check_name(struct xdr_netobj name) {
return 1;
}
-void
+static void
add_to_unconfirmed(struct nfs4_client *clp, unsigned int strhashval)
{
unsigned int idhashval;
@@ -458,7 +473,7 @@ add_to_unconfirmed(struct nfs4_client *clp, unsigned int strhashval)
clp->cl_time = get_seconds();
}
-void
+static void
move_to_confirmed(struct nfs4_client *clp)
{
unsigned int idhashval = clientid_hashval(clp->cl_clientid.cl_id);
@@ -468,8 +483,7 @@ move_to_confirmed(struct nfs4_client *clp)
list_del_init(&clp->cl_strhash);
list_del_init(&clp->cl_idhash);
list_add(&clp->cl_idhash, &conf_id_hashtbl[idhashval]);
- strhashval = clientstr_hashval(clp->cl_name.data,
- clp->cl_name.len);
+ strhashval = clientstr_hashval(clp->cl_recdir);
list_add(&clp->cl_strhash, &conf_str_hashtbl[strhashval]);
renew_client(clp);
}
@@ -500,6 +514,30 @@ find_unconfirmed_client(clientid_t *clid)
return NULL;
}
+static struct nfs4_client *
+find_confirmed_client_by_str(const char *dname, unsigned int hashval)
+{
+ struct nfs4_client *clp;
+
+ list_for_each_entry(clp, &conf_str_hashtbl[hashval], cl_strhash) {
+ if (same_name(clp->cl_recdir, dname))
+ return clp;
+ }
+ return NULL;
+}
+
+static struct nfs4_client *
+find_unconfirmed_client_by_str(const char *dname, unsigned int hashval)
+{
+ struct nfs4_client *clp;
+
+ list_for_each_entry(clp, &unconf_str_hashtbl[hashval], cl_strhash) {
+ if (same_name(clp->cl_recdir, dname))
+ return clp;
+ }
+ return NULL;
+}
+
/* a helper function for parse_callback */
static int
parse_octet(unsigned int *lenp, char **addrp)
@@ -534,7 +572,7 @@ parse_octet(unsigned int *lenp, char **addrp)
}
/* parse and set the setclientid ipv4 callback address */
-int
+static int
parse_ipv4(unsigned int addr_len, char *addr_val, unsigned int *cbaddrp, unsigned short *cbportp)
{
int temp = 0;
@@ -570,7 +608,7 @@ parse_ipv4(unsigned int addr_len, char *addr_val, unsigned int *cbaddrp, unsigne
return 1;
}
-void
+static void
gen_callback(struct nfs4_client *clp, struct nfsd4_setclientid *se)
{
struct nfs4_callback *cb = &clp->cl_callback;
@@ -584,14 +622,12 @@ gen_callback(struct nfs4_client *clp, struct nfsd4_setclientid *se)
goto out_err;
cb->cb_prog = se->se_callback_prog;
cb->cb_ident = se->se_callback_ident;
- cb->cb_parsed = 1;
return;
out_err:
printk(KERN_INFO "NFSD: this client (clientid %08x/%08x) "
"will not receive delegations\n",
clp->cl_clientid.cl_boot, clp->cl_clientid.cl_id);
- cb->cb_parsed = 0;
return;
}
@@ -638,59 +674,43 @@ nfsd4_setclientid(struct svc_rqst *rqstp, struct nfsd4_setclientid *setclid)
};
nfs4_verifier clverifier = setclid->se_verf;
unsigned int strhashval;
- struct nfs4_client * conf, * unconf, * new, * clp;
+ struct nfs4_client *conf, *unconf, *new;
int status;
+ char dname[HEXDIR_LEN];
status = nfserr_inval;
if (!check_name(clname))
goto out;
+ status = nfs4_make_rec_clidname(dname, &clname);
+ if (status)
+ goto out;
+
/*
* XXX The Duplicate Request Cache (DRC) has been checked (??)
* We get here on a DRC miss.
*/
- strhashval = clientstr_hashval(clname.data, clname.len);
+ strhashval = clientstr_hashval(dname);
- conf = NULL;
nfs4_lock_state();
- list_for_each_entry(clp, &conf_str_hashtbl[strhashval], cl_strhash) {
- if (!cmp_name(&clp->cl_name, &clname))
- continue;
+ conf = find_confirmed_client_by_str(dname, strhashval);
+ if (conf) {
/*
* CASE 0:
* clname match, confirmed, different principal
* or different ip_address
*/
status = nfserr_clid_inuse;
- if (!cmp_creds(&clp->cl_cred,&rqstp->rq_cred)) {
- printk("NFSD: setclientid: string in use by client"
- "(clientid %08x/%08x)\n",
- clp->cl_clientid.cl_boot, clp->cl_clientid.cl_id);
- goto out;
- }
- if (clp->cl_addr != ip_addr) {
+ if (!cmp_creds(&conf->cl_cred, &rqstp->rq_cred)
+ || conf->cl_addr != ip_addr) {
printk("NFSD: setclientid: string in use by client"
"(clientid %08x/%08x)\n",
- clp->cl_clientid.cl_boot, clp->cl_clientid.cl_id);
+ conf->cl_clientid.cl_boot, conf->cl_clientid.cl_id);
goto out;
}
-
- /*
- * cl_name match from a previous SETCLIENTID operation
- * XXX check for additional matches?
- */
- conf = clp;
- break;
- }
- unconf = NULL;
- list_for_each_entry(clp, &unconf_str_hashtbl[strhashval], cl_strhash) {
- if (!cmp_name(&clp->cl_name, &clname))
- continue;
- /* cl_name match from a previous SETCLIENTID operation */
- unconf = clp;
- break;
}
+ unconf = find_unconfirmed_client_by_str(dname, strhashval);
status = nfserr_resource;
if (!conf) {
/*
@@ -699,7 +719,8 @@ nfsd4_setclientid(struct svc_rqst *rqstp, struct nfsd4_setclientid *setclid)
*/
if (unconf)
expire_client(unconf);
- if (!(new = create_client(clname)))
+ new = create_client(clname, dname);
+ if (new == NULL)
goto out;
copy_verf(new, &clverifier);
new->cl_addr = ip_addr;
@@ -722,12 +743,16 @@ nfsd4_setclientid(struct svc_rqst *rqstp, struct nfsd4_setclientid *setclid)
* nfs4_client, but with the new callback info and a
* new cl_confirm
*/
- if ((unconf) &&
- cmp_verf(&unconf->cl_verifier, &conf->cl_verifier) &&
- cmp_clid(&unconf->cl_clientid, &conf->cl_clientid)) {
- expire_client(unconf);
+ if (unconf) {
+ /* Note this is removing unconfirmed {*x***},
+ * which is stronger than RFC recommended {vxc**}.
+ * This has the advantage that there is at most
+ * one {*x***} in either list at any time.
+ */
+ expire_client(unconf);
}
- if (!(new = create_client(clname)))
+ new = create_client(clname, dname);
+ if (new == NULL)
goto out;
copy_verf(new,&conf->cl_verifier);
new->cl_addr = ip_addr;
@@ -745,7 +770,8 @@ nfsd4_setclientid(struct svc_rqst *rqstp, struct nfsd4_setclientid *setclid)
* using input clverifier, clname, and callback info
* and generate a new cl_clientid and cl_confirm.
*/
- if (!(new = create_client(clname)))
+ new = create_client(clname, dname);
+ if (new == NULL)
goto out;
copy_verf(new,&clverifier);
new->cl_addr = ip_addr;
@@ -771,7 +797,8 @@ nfsd4_setclientid(struct svc_rqst *rqstp, struct nfsd4_setclientid *setclid)
* new cl_verifier and a new cl_confirm
*/
expire_client(unconf);
- if (!(new = create_client(clname)))
+ new = create_client(clname, dname);
+ if (new == NULL)
goto out;
copy_verf(new,&clverifier);
new->cl_addr = ip_addr;
@@ -807,7 +834,7 @@ int
nfsd4_setclientid_confirm(struct svc_rqst *rqstp, struct nfsd4_setclientid_confirm *setclientid_confirm)
{
u32 ip_addr = rqstp->rq_addr.sin_addr.s_addr;
- struct nfs4_client *clp, *conf = NULL, *unconf = NULL;
+ struct nfs4_client *conf, *unconf;
nfs4_verifier confirm = setclientid_confirm->sc_confirm;
clientid_t * clid = &setclientid_confirm->sc_clientid;
int status;
@@ -820,102 +847,90 @@ nfsd4_setclientid_confirm(struct svc_rqst *rqstp, struct nfsd4_setclientid_confi
*/
nfs4_lock_state();
- clp = find_confirmed_client(clid);
- if (clp) {
- status = nfserr_inval;
- /*
- * Found a record for this clientid. If the IP addresses
- * don't match, return ERR_INVAL just as if the record had
- * not been found.
- */
- if (clp->cl_addr != ip_addr) {
- printk("NFSD: setclientid: string in use by client"
- "(clientid %08x/%08x)\n",
- clp->cl_clientid.cl_boot, clp->cl_clientid.cl_id);
- goto out;
- }
- conf = clp;
- }
- clp = find_unconfirmed_client(clid);
- if (clp) {
- status = nfserr_inval;
- if (clp->cl_addr != ip_addr) {
- printk("NFSD: setclientid: string in use by client"
- "(clientid %08x/%08x)\n",
- clp->cl_clientid.cl_boot, clp->cl_clientid.cl_id);
- goto out;
- }
- unconf = clp;
- }
- /* CASE 1:
- * unconf record that matches input clientid and input confirm.
- * conf record that matches input clientid.
- * conf and unconf records match names, verifiers
- */
+
+ conf = find_confirmed_client(clid);
+ unconf = find_unconfirmed_client(clid);
+
+ status = nfserr_clid_inuse;
+ if (conf && conf->cl_addr != ip_addr)
+ goto out;
+ if (unconf && unconf->cl_addr != ip_addr)
+ goto out;
+
if ((conf && unconf) &&
(cmp_verf(&unconf->cl_confirm, &confirm)) &&
(cmp_verf(&conf->cl_verifier, &unconf->cl_verifier)) &&
- (cmp_name(&conf->cl_name,&unconf->cl_name)) &&
+ (same_name(conf->cl_recdir,unconf->cl_recdir)) &&
(!cmp_verf(&conf->cl_confirm, &unconf->cl_confirm))) {
+ /* CASE 1:
+ * unconf record that matches input clientid and input confirm.
+ * conf record that matches input clientid.
+ * conf and unconf records match names, verifiers
+ */
if (!cmp_creds(&conf->cl_cred, &unconf->cl_cred))
status = nfserr_clid_inuse;
else {
- expire_client(conf);
- clp = unconf;
- move_to_confirmed(unconf);
+ /* XXX: We just turn off callbacks until we can handle
+ * change request correctly. */
+ atomic_set(&conf->cl_callback.cb_set, 0);
+ gen_confirm(conf);
+ expire_client(unconf);
status = nfs_ok;
+
}
- goto out;
- }
- /* CASE 2:
- * conf record that matches input clientid.
- * if unconf record that matches input clientid, then unconf->cl_name
- * or unconf->cl_verifier don't match the conf record.
- */
- if ((conf && !unconf) ||
+ } else if ((conf && !unconf) ||
((conf && unconf) &&
(!cmp_verf(&conf->cl_verifier, &unconf->cl_verifier) ||
- !cmp_name(&conf->cl_name, &unconf->cl_name)))) {
- if (!cmp_creds(&conf->cl_cred,&rqstp->rq_cred)) {
+ !same_name(conf->cl_recdir, unconf->cl_recdir)))) {
+ /* CASE 2:
+ * conf record that matches input clientid.
+ * if unconf record matches input clientid, then
+ * unconf->cl_name or unconf->cl_verifier don't match the
+ * conf record.
+ */
+ if (!cmp_creds(&conf->cl_cred,&rqstp->rq_cred))
status = nfserr_clid_inuse;
- } else {
- clp = conf;
+ else
status = nfs_ok;
- }
- goto out;
- }
- /* CASE 3:
- * conf record not found.
- * unconf record found.
- * unconf->cl_confirm matches input confirm
- */
- if (!conf && unconf && cmp_verf(&unconf->cl_confirm, &confirm)) {
+ } else if (!conf && unconf
+ && cmp_verf(&unconf->cl_confirm, &confirm)) {
+ /* CASE 3:
+ * conf record not found.
+ * unconf record found.
+ * unconf->cl_confirm matches input confirm
+ */
if (!cmp_creds(&unconf->cl_cred, &rqstp->rq_cred)) {
status = nfserr_clid_inuse;
} else {
- status = nfs_ok;
- clp = unconf;
+ unsigned int hash =
+ clientstr_hashval(unconf->cl_recdir);
+ conf = find_confirmed_client_by_str(unconf->cl_recdir,
+ hash);
+ if (conf) {
+ nfsd4_remove_clid_dir(conf);
+ expire_client(conf);
+ }
move_to_confirmed(unconf);
+ conf = unconf;
+ status = nfs_ok;
}
- goto out;
- }
- /* CASE 4:
- * conf record not found, or if conf, then conf->cl_confirm does not
- * match input confirm.
- * unconf record not found, or if unconf, then unconf->cl_confirm
- * does not match input confirm.
- */
- if ((!conf || (conf && !cmp_verf(&conf->cl_confirm, &confirm))) &&
- (!unconf || (unconf && !cmp_verf(&unconf->cl_confirm, &confirm)))) {
+ } else if ((!conf || (conf && !cmp_verf(&conf->cl_confirm, &confirm)))
+ && (!unconf || (unconf && !cmp_verf(&unconf->cl_confirm,
+ &confirm)))) {
+ /* CASE 4:
+ * conf record not found, or if conf, conf->cl_confirm does not
+ * match input confirm.
+ * unconf record not found, or if unconf, unconf->cl_confirm
+ * does not match input confirm.
+ */
status = nfserr_stale_clientid;
- goto out;
+ } else {
+ /* check that we have hit one of the cases...*/
+ status = nfserr_clid_inuse;
}
- /* check that we have hit one of the cases...*/
- status = nfserr_inval;
- goto out;
out:
if (!status)
- nfsd4_probe_callback(clp);
+ nfsd4_probe_callback(conf);
nfs4_unlock_state();
return status;
}
@@ -961,60 +976,65 @@ alloc_init_file(struct inode *ino)
struct nfs4_file *fp;
unsigned int hashval = file_hashval(ino);
- if ((fp = kmalloc(sizeof(struct nfs4_file),GFP_KERNEL))) {
+ fp = kmem_cache_alloc(file_slab, GFP_KERNEL);
+ if (fp) {
+ kref_init(&fp->fi_ref);
INIT_LIST_HEAD(&fp->fi_hash);
- INIT_LIST_HEAD(&fp->fi_perfile);
- INIT_LIST_HEAD(&fp->fi_del_perfile);
+ INIT_LIST_HEAD(&fp->fi_stateids);
+ INIT_LIST_HEAD(&fp->fi_delegations);
list_add(&fp->fi_hash, &file_hashtbl[hashval]);
fp->fi_inode = igrab(ino);
fp->fi_id = current_fileid++;
- alloc_file++;
return fp;
}
return NULL;
}
static void
-release_all_files(void)
+nfsd4_free_slab(kmem_cache_t **slab)
{
- int i;
- struct nfs4_file *fp;
+ int status;
- for (i=0;i<FILE_HASH_SIZE;i++) {
- while (!list_empty(&file_hashtbl[i])) {
- fp = list_entry(file_hashtbl[i].next, struct nfs4_file, fi_hash);
- /* this should never be more than once... */
- if (!list_empty(&fp->fi_perfile) || !list_empty(&fp->fi_del_perfile)) {
- printk("ERROR: release_all_files: file %p is open, creating dangling state !!!\n",fp);
- }
- release_file(fp);
- }
- }
+ if (*slab == NULL)
+ return;
+ status = kmem_cache_destroy(*slab);
+ *slab = NULL;
+ WARN_ON(status);
}
-kmem_cache_t *stateowner_slab = NULL;
+static void
+nfsd4_free_slabs(void)
+{
+ nfsd4_free_slab(&stateowner_slab);
+ nfsd4_free_slab(&file_slab);
+ nfsd4_free_slab(&stateid_slab);
+ nfsd4_free_slab(&deleg_slab);
+}
static int
nfsd4_init_slabs(void)
{
stateowner_slab = kmem_cache_create("nfsd4_stateowners",
sizeof(struct nfs4_stateowner), 0, 0, NULL, NULL);
- if (stateowner_slab == NULL) {
- dprintk("nfsd4: out of memory while initializing nfsv4\n");
- return -ENOMEM;
- }
+ if (stateowner_slab == NULL)
+ goto out_nomem;
+ file_slab = kmem_cache_create("nfsd4_files",
+ sizeof(struct nfs4_file), 0, 0, NULL, NULL);
+ if (file_slab == NULL)
+ goto out_nomem;
+ stateid_slab = kmem_cache_create("nfsd4_stateids",
+ sizeof(struct nfs4_stateid), 0, 0, NULL, NULL);
+ if (stateid_slab == NULL)
+ goto out_nomem;
+ deleg_slab = kmem_cache_create("nfsd4_delegations",
+ sizeof(struct nfs4_delegation), 0, 0, NULL, NULL);
+ if (deleg_slab == NULL)
+ goto out_nomem;
return 0;
-}
-
-static void
-nfsd4_free_slabs(void)
-{
- int status = 0;
-
- if (stateowner_slab)
- status = kmem_cache_destroy(stateowner_slab);
- stateowner_slab = NULL;
- BUG_ON(status);
+out_nomem:
+ nfsd4_free_slabs();
+ dprintk("nfsd4: out of memory while initializing nfsv4\n");
+ return -ENOMEM;
}
void
@@ -1055,14 +1075,13 @@ alloc_init_open_stateowner(unsigned int strhashval, struct nfs4_client *clp, str
INIT_LIST_HEAD(&sop->so_idhash);
INIT_LIST_HEAD(&sop->so_strhash);
INIT_LIST_HEAD(&sop->so_perclient);
- INIT_LIST_HEAD(&sop->so_perfilestate);
- INIT_LIST_HEAD(&sop->so_perlockowner); /* not used */
+ INIT_LIST_HEAD(&sop->so_stateids);
+ INIT_LIST_HEAD(&sop->so_perstateid); /* not used */
INIT_LIST_HEAD(&sop->so_close_lru);
sop->so_time = 0;
list_add(&sop->so_idhash, &ownerid_hashtbl[idhashval]);
list_add(&sop->so_strhash, &ownerstr_hashtbl[strhashval]);
- list_add(&sop->so_perclient, &clp->cl_perclient);
- add_perclient++;
+ list_add(&sop->so_perclient, &clp->cl_openowners);
sop->so_is_open_owner = 1;
sop->so_id = current_ownerid++;
sop->so_client = clp;
@@ -1080,10 +1099,10 @@ release_stateid_lockowners(struct nfs4_stateid *open_stp)
{
struct nfs4_stateowner *lock_sop;
- while (!list_empty(&open_stp->st_perlockowner)) {
- lock_sop = list_entry(open_stp->st_perlockowner.next,
- struct nfs4_stateowner, so_perlockowner);
- /* list_del(&open_stp->st_perlockowner); */
+ while (!list_empty(&open_stp->st_lockowners)) {
+ lock_sop = list_entry(open_stp->st_lockowners.next,
+ struct nfs4_stateowner, so_perstateid);
+ /* list_del(&open_stp->st_lockowners); */
BUG_ON(lock_sop->so_is_open_owner);
release_stateowner(lock_sop);
}
@@ -1096,14 +1115,12 @@ unhash_stateowner(struct nfs4_stateowner *sop)
list_del(&sop->so_idhash);
list_del(&sop->so_strhash);
- if (sop->so_is_open_owner) {
+ if (sop->so_is_open_owner)
list_del(&sop->so_perclient);
- del_perclient++;
- }
- list_del(&sop->so_perlockowner);
- while (!list_empty(&sop->so_perfilestate)) {
- stp = list_entry(sop->so_perfilestate.next,
- struct nfs4_stateid, st_perfilestate);
+ list_del(&sop->so_perstateid);
+ while (!list_empty(&sop->so_stateids)) {
+ stp = list_entry(sop->so_stateids.next,
+ struct nfs4_stateid, st_perstateowner);
if (sop->so_is_open_owner)
release_stateid(stp, OPEN_STATE);
else
@@ -1125,14 +1142,14 @@ init_stateid(struct nfs4_stateid *stp, struct nfs4_file *fp, struct nfsd4_open *
unsigned int hashval = stateid_hashval(sop->so_id, fp->fi_id);
INIT_LIST_HEAD(&stp->st_hash);
- INIT_LIST_HEAD(&stp->st_perfilestate);
- INIT_LIST_HEAD(&stp->st_perlockowner);
+ INIT_LIST_HEAD(&stp->st_perstateowner);
+ INIT_LIST_HEAD(&stp->st_lockowners);
INIT_LIST_HEAD(&stp->st_perfile);
list_add(&stp->st_hash, &stateid_hashtbl[hashval]);
- list_add(&stp->st_perfilestate, &sop->so_perfilestate);
- list_add_perfile++;
- list_add(&stp->st_perfile, &fp->fi_perfile);
+ list_add(&stp->st_perstateowner, &sop->so_stateids);
+ list_add(&stp->st_perfile, &fp->fi_stateids);
stp->st_stateowner = sop;
+ get_nfs4_file(fp);
stp->st_file = fp;
stp->st_stateid.si_boot = boot_time;
stp->st_stateid.si_stateownerid = sop->so_id;
@@ -1150,30 +1167,20 @@ release_stateid(struct nfs4_stateid *stp, int flags)
struct file *filp = stp->st_vfs_file;
list_del(&stp->st_hash);
- list_del_perfile++;
list_del(&stp->st_perfile);
- list_del(&stp->st_perfilestate);
+ list_del(&stp->st_perstateowner);
if (flags & OPEN_STATE) {
release_stateid_lockowners(stp);
stp->st_vfs_file = NULL;
nfsd_close(filp);
- vfsclose++;
} else if (flags & LOCK_STATE)
locks_remove_posix(filp, (fl_owner_t) stp->st_stateowner);
- kfree(stp);
+ put_nfs4_file(stp->st_file);
+ kmem_cache_free(stateid_slab, stp);
stp = NULL;
}
static void
-release_file(struct nfs4_file *fp)
-{
- free_file++;
- list_del(&fp->fi_hash);
- iput(fp->fi_inode);
- kfree(fp);
-}
-
-void
move_to_close_lru(struct nfs4_stateowner *sop)
{
dprintk("NFSD: move_to_close_lru nfs4_stateowner %p\n", sop);
@@ -1183,11 +1190,10 @@ move_to_close_lru(struct nfs4_stateowner *sop)
sop->so_time = get_seconds();
}
-void
+static void
release_state_owner(struct nfs4_stateid *stp, int flag)
{
struct nfs4_stateowner *sop = stp->st_stateowner;
- struct nfs4_file *fp = stp->st_file;
dprintk("NFSD: release_state_owner\n");
release_stateid(stp, flag);
@@ -1196,12 +1202,8 @@ release_state_owner(struct nfs4_stateid *stp, int flag)
* released by the laundromat service after the lease period
* to enable us to handle CLOSE replay
*/
- if (sop->so_confirmed && list_empty(&sop->so_perfilestate))
+ if (sop->so_confirmed && list_empty(&sop->so_stateids))
move_to_close_lru(sop);
- /* unused nfs4_file's are releseed. XXX slab cache? */
- if (list_empty(&fp->fi_perfile) && list_empty(&fp->fi_del_perfile)) {
- release_file(fp);
- }
}
static int
@@ -1231,8 +1233,10 @@ find_file(struct inode *ino)
struct nfs4_file *fp;
list_for_each_entry(fp, &file_hashtbl[hashval], fi_hash) {
- if (fp->fi_inode == ino)
+ if (fp->fi_inode == ino) {
+ get_nfs4_file(fp);
return fp;
+ }
}
return NULL;
}
@@ -1240,7 +1244,7 @@ find_file(struct inode *ino)
#define TEST_ACCESS(x) ((x > 0 || x < 4)?1:0)
#define TEST_DENY(x) ((x >= 0 || x < 5)?1:0)
-void
+static void
set_access(unsigned int *access, unsigned long bmap) {
int i;
@@ -1251,7 +1255,7 @@ set_access(unsigned int *access, unsigned long bmap) {
}
}
-void
+static void
set_deny(unsigned int *deny, unsigned long bmap) {
int i;
@@ -1277,25 +1281,30 @@ test_share(struct nfs4_stateid *stp, struct nfsd4_open *open) {
* Called to check deny when READ with all zero stateid or
* WRITE with all zero or all one stateid
*/
-int
+static int
nfs4_share_conflict(struct svc_fh *current_fh, unsigned int deny_type)
{
struct inode *ino = current_fh->fh_dentry->d_inode;
struct nfs4_file *fp;
struct nfs4_stateid *stp;
+ int ret;
dprintk("NFSD: nfs4_share_conflict\n");
fp = find_file(ino);
- if (fp) {
+ if (!fp)
+ return nfs_ok;
+ ret = nfserr_share_denied;
/* Search for conflicting share reservations */
- list_for_each_entry(stp, &fp->fi_perfile, st_perfile) {
- if (test_bit(deny_type, &stp->st_deny_bmap) ||
- test_bit(NFS4_SHARE_DENY_BOTH, &stp->st_deny_bmap))
- return nfserr_share_denied;
- }
+ list_for_each_entry(stp, &fp->fi_stateids, st_perfile) {
+ if (test_bit(deny_type, &stp->st_deny_bmap) ||
+ test_bit(NFS4_SHARE_DENY_BOTH, &stp->st_deny_bmap))
+ goto out;
}
- return nfs_ok;
+ ret = nfs_ok;
+out:
+ put_nfs4_file(fp);
+ return ret;
}
static inline void
@@ -1427,7 +1436,7 @@ int nfsd_change_deleg_cb(struct file_lock **onlist, int arg)
return -EAGAIN;
}
-struct lock_manager_operations nfsd_lease_mng_ops = {
+static struct lock_manager_operations nfsd_lease_mng_ops = {
.fl_break = nfsd_break_deleg_cb,
.fl_release_private = nfsd_release_deleg_cb,
.fl_copy_lock = nfsd_copy_lock_deleg_cb,
@@ -1526,6 +1535,51 @@ out:
return status;
}
+static inline int
+nfs4_check_delegmode(struct nfs4_delegation *dp, int flags)
+{
+ if ((flags & WR_STATE) && (dp->dl_type == NFS4_OPEN_DELEGATE_READ))
+ return nfserr_openmode;
+ else
+ return nfs_ok;
+}
+
+static struct nfs4_delegation *
+find_delegation_file(struct nfs4_file *fp, stateid_t *stid)
+{
+ struct nfs4_delegation *dp;
+
+ list_for_each_entry(dp, &fp->fi_delegations, dl_perfile) {
+ if (dp->dl_stateid.si_stateownerid == stid->si_stateownerid)
+ return dp;
+ }
+ return NULL;
+}
+
+static int
+nfs4_check_deleg(struct nfs4_file *fp, struct nfsd4_open *open,
+ struct nfs4_delegation **dp)
+{
+ int flags;
+ int status = nfserr_bad_stateid;
+
+ *dp = find_delegation_file(fp, &open->op_delegate_stateid);
+ if (*dp == NULL)
+ goto out;
+ flags = open->op_share_access == NFS4_SHARE_ACCESS_READ ?
+ RD_STATE : WR_STATE;
+ status = nfs4_check_delegmode(*dp, flags);
+ if (status)
+ *dp = NULL;
+out:
+ if (open->op_claim_type != NFS4_OPEN_CLAIM_DELEGATE_CUR)
+ return nfs_ok;
+ if (status)
+ return status;
+ open->op_stateowner->so_confirmed = 1;
+ return nfs_ok;
+}
+
static int
nfs4_check_open(struct nfs4_file *fp, struct nfsd4_open *open, struct nfs4_stateid **stpp)
{
@@ -1533,7 +1587,7 @@ nfs4_check_open(struct nfs4_file *fp, struct nfsd4_open *open, struct nfs4_state
int status = nfserr_share_denied;
struct nfs4_stateowner *sop = open->op_stateowner;
- list_for_each_entry(local, &fp->fi_perfile, st_perfile) {
+ list_for_each_entry(local, &fp->fi_stateids, st_perfile) {
/* ignore lock owners */
if (local->st_stateowner->so_is_open_owner == 0)
continue;
@@ -1549,25 +1603,37 @@ out:
return status;
}
+static inline struct nfs4_stateid *
+nfs4_alloc_stateid(void)
+{
+ return kmem_cache_alloc(stateid_slab, GFP_KERNEL);
+}
+
static int
nfs4_new_open(struct svc_rqst *rqstp, struct nfs4_stateid **stpp,
+ struct nfs4_delegation *dp,
struct svc_fh *cur_fh, int flags)
{
struct nfs4_stateid *stp;
- int status;
- stp = kmalloc(sizeof(struct nfs4_stateid), GFP_KERNEL);
+ stp = nfs4_alloc_stateid();
if (stp == NULL)
return nfserr_resource;
- status = nfsd_open(rqstp, cur_fh, S_IFREG, flags, &stp->st_vfs_file);
- if (status) {
- if (status == nfserr_dropit)
- status = nfserr_jukebox;
- kfree(stp);
- return status;
+ if (dp) {
+ get_file(dp->dl_vfs_file);
+ stp->st_vfs_file = dp->dl_vfs_file;
+ } else {
+ int status;
+ status = nfsd_open(rqstp, cur_fh, S_IFREG, flags,
+ &stp->st_vfs_file);
+ if (status) {
+ if (status == nfserr_dropit)
+ status = nfserr_jukebox;
+ kmem_cache_free(stateid_slab, stp);
+ return status;
+ }
}
- vfsopen++;
*stpp = stp;
return 0;
}
@@ -1628,6 +1694,7 @@ nfs4_set_claim_prev(struct nfsd4_open *open, int *status)
*status = nfserr_reclaim_bad;
else {
open->op_stateowner->so_confirmed = 1;
+ open->op_stateowner->so_client->cl_firststate = 1;
open->op_stateowner->so_seqid--;
}
}
@@ -1646,14 +1713,30 @@ nfs4_open_delegation(struct svc_fh *fh, struct nfsd4_open *open, struct nfs4_sta
int status, flag = 0;
flag = NFS4_OPEN_DELEGATE_NONE;
- if (open->op_claim_type != NFS4_OPEN_CLAIM_NULL
- || !atomic_read(&cb->cb_set) || !sop->so_confirmed)
- goto out;
-
- if (open->op_share_access & NFS4_SHARE_ACCESS_WRITE)
- flag = NFS4_OPEN_DELEGATE_WRITE;
- else
- flag = NFS4_OPEN_DELEGATE_READ;
+ open->op_recall = 0;
+ switch (open->op_claim_type) {
+ case NFS4_OPEN_CLAIM_PREVIOUS:
+ if (!atomic_read(&cb->cb_set))
+ open->op_recall = 1;
+ flag = open->op_delegate_type;
+ if (flag == NFS4_OPEN_DELEGATE_NONE)
+ goto out;
+ break;
+ case NFS4_OPEN_CLAIM_NULL:
+ /* Let's not give out any delegations till everyone's
+ * had the chance to reclaim theirs.... */
+ if (nfs4_in_grace())
+ goto out;
+ if (!atomic_read(&cb->cb_set) || !sop->so_confirmed)
+ goto out;
+ if (open->op_share_access & NFS4_SHARE_ACCESS_WRITE)
+ flag = NFS4_OPEN_DELEGATE_WRITE;
+ else
+ flag = NFS4_OPEN_DELEGATE_READ;
+ break;
+ default:
+ goto out;
+ }
dp = alloc_init_deleg(sop->so_client, stp, fh, flag);
if (dp == NULL) {
@@ -1687,6 +1770,10 @@ nfs4_open_delegation(struct svc_fh *fh, struct nfsd4_open *open, struct nfs4_sta
dp->dl_stateid.si_fileid,
dp->dl_stateid.si_generation);
out:
+ if (open->op_claim_type == NFS4_OPEN_CLAIM_PREVIOUS
+ && flag == NFS4_OPEN_DELEGATE_NONE
+ && open->op_delegate_type != NFS4_OPEN_DELEGATE_NONE)
+ printk("NFSD: WARNING: refusing delegation reclaim\n");
open->op_delegate_type = flag;
}
@@ -1699,6 +1786,7 @@ nfsd4_process_open2(struct svc_rqst *rqstp, struct svc_fh *current_fh, struct nf
struct nfs4_file *fp = NULL;
struct inode *ino = current_fh->fh_dentry->d_inode;
struct nfs4_stateid *stp = NULL;
+ struct nfs4_delegation *dp = NULL;
int status;
status = nfserr_inval;
@@ -1713,7 +1801,13 @@ nfsd4_process_open2(struct svc_rqst *rqstp, struct svc_fh *current_fh, struct nf
if (fp) {
if ((status = nfs4_check_open(fp, open, &stp)))
goto out;
+ status = nfs4_check_deleg(fp, open, &dp);
+ if (status)
+ goto out;
} else {
+ status = nfserr_bad_stateid;
+ if (open->op_claim_type == NFS4_OPEN_CLAIM_DELEGATE_CUR)
+ goto out;
status = nfserr_resource;
fp = alloc_init_file(ino);
if (fp == NULL)
@@ -1736,7 +1830,8 @@ nfsd4_process_open2(struct svc_rqst *rqstp, struct svc_fh *current_fh, struct nf
flags = MAY_WRITE;
else
flags = MAY_READ;
- if ((status = nfs4_new_open(rqstp, &stp, current_fh, flags)))
+ status = nfs4_new_open(rqstp, &stp, dp, current_fh, flags);
+ if (status)
goto out;
init_stateid(stp, fp, open);
status = nfsd4_truncate(rqstp, current_fh, open);
@@ -1759,10 +1854,8 @@ nfsd4_process_open2(struct svc_rqst *rqstp, struct svc_fh *current_fh, struct nf
stp->st_stateid.si_boot, stp->st_stateid.si_stateownerid,
stp->st_stateid.si_fileid, stp->st_stateid.si_generation);
out:
- /* take the opportunity to clean up unused state */
- if (fp && list_empty(&fp->fi_perfile) && list_empty(&fp->fi_del_perfile))
- release_file(fp);
-
+ if (fp)
+ put_nfs4_file(fp);
/* CLAIM_PREVIOUS has different error returns */
nfs4_set_claim_prev(open, &status);
/*
@@ -1775,6 +1868,7 @@ out:
return status;
}
+static struct workqueue_struct *laundry_wq;
static struct work_struct laundromat_work;
static void laundromat_main(void *);
static DECLARE_WORK(laundromat_work, laundromat_main, NULL);
@@ -1800,7 +1894,7 @@ nfsd4_renew(clientid_t *clid)
}
renew_client(clp);
status = nfserr_cb_path_down;
- if (!list_empty(&clp->cl_del_perclnt)
+ if (!list_empty(&clp->cl_delegations)
&& !atomic_read(&clp->cl_callback.cb_set))
goto out;
status = nfs_ok;
@@ -1809,7 +1903,15 @@ out:
return status;
}
-time_t
+static void
+end_grace(void)
+{
+ dprintk("NFSD: end of grace period\n");
+ nfsd4_recdir_purge_old();
+ in_grace = 0;
+}
+
+static time_t
nfs4_laundromat(void)
{
struct nfs4_client *clp;
@@ -1823,6 +1925,8 @@ nfs4_laundromat(void)
nfs4_lock_state();
dprintk("NFSD: laundromat service - starting\n");
+ if (in_grace)
+ end_grace();
list_for_each_safe(pos, next, &client_lru) {
clp = list_entry(pos, struct nfs4_client, cl_lru);
if (time_after((unsigned long)clp->cl_time, (unsigned long)cutoff)) {
@@ -1833,6 +1937,7 @@ nfs4_laundromat(void)
}
dprintk("NFSD: purging unused client (clientid %08x)\n",
clp->cl_clientid.cl_id);
+ nfsd4_remove_clid_dir(clp);
expire_client(clp);
}
INIT_LIST_HEAD(&reaplist);
@@ -1882,13 +1987,13 @@ laundromat_main(void *not_used)
t = nfs4_laundromat();
dprintk("NFSD: laundromat_main - sleeping for %ld seconds\n", t);
- schedule_delayed_work(&laundromat_work, t*HZ);
+ queue_delayed_work(laundry_wq, &laundromat_work, t*HZ);
}
/* search ownerid_hashtbl[] and close_lru for stateid owner
* (stateid->si_stateownerid)
*/
-struct nfs4_stateowner *
+static struct nfs4_stateowner *
find_openstateowner_id(u32 st_id, int flags) {
struct nfs4_stateowner *local = NULL;
@@ -1949,15 +2054,6 @@ out:
}
static inline int
-nfs4_check_delegmode(struct nfs4_delegation *dp, int flags)
-{
- if ((flags & WR_STATE) && (dp->dl_type == NFS4_OPEN_DELEGATE_READ))
- return nfserr_openmode;
- else
- return nfs_ok;
-}
-
-static inline int
check_special_stateids(svc_fh *current_fh, stateid_t *stateid, int flags)
{
/* Trying to call delegreturn with a special stateid? Yuch: */
@@ -2071,7 +2167,7 @@ out:
/*
* Checks for sequence id mutating operations.
*/
-int
+static int
nfs4_preprocess_seqid_op(struct svc_fh *current_fh, u32 seqid, stateid_t *stateid, int flags, struct nfs4_stateowner **sopp, struct nfs4_stateid **stpp, clientid_t *lockclid)
{
int status;
@@ -2230,6 +2326,8 @@ nfsd4_open_confirm(struct svc_rqst *rqstp, struct svc_fh *current_fh, struct nfs
stp->st_stateid.si_stateownerid,
stp->st_stateid.si_fileid,
stp->st_stateid.si_generation);
+
+ nfsd4_create_clid_dir(sop->so_client);
out:
if (oc->oc_stateowner)
nfs4_get_stateowner(oc->oc_stateowner);
@@ -2387,7 +2485,7 @@ static struct list_head lock_ownerid_hashtbl[LOCK_HASH_SIZE];
static struct list_head lock_ownerstr_hashtbl[LOCK_HASH_SIZE];
static struct list_head lockstateid_hashtbl[STATEID_HASH_SIZE];
-struct nfs4_stateid *
+static struct nfs4_stateid *
find_stateid(stateid_t *stid, int flags)
{
struct nfs4_stateid *local = NULL;
@@ -2419,25 +2517,19 @@ find_stateid(stateid_t *stid, int flags)
static struct nfs4_delegation *
find_delegation_stateid(struct inode *ino, stateid_t *stid)
{
- struct nfs4_delegation *dp = NULL;
- struct nfs4_file *fp = NULL;
- u32 st_id;
+ struct nfs4_file *fp;
+ struct nfs4_delegation *dl;
dprintk("NFSD:find_delegation_stateid stateid=(%08x/%08x/%08x/%08x)\n",
stid->si_boot, stid->si_stateownerid,
stid->si_fileid, stid->si_generation);
- st_id = stid->si_stateownerid;
fp = find_file(ino);
- if (fp) {
- list_for_each_entry(dp, &fp->fi_del_perfile, dl_del_perfile) {
- if(dp->dl_stateid.si_stateownerid == st_id) {
- dprintk("NFSD: find_delegation dp %p\n",dp);
- return dp;
- }
- }
- }
- return NULL;
+ if (!fp)
+ return NULL;
+ dl = find_delegation_file(fp, stid);
+ put_nfs4_file(fp);
+ return dl;
}
/*
@@ -2457,7 +2549,7 @@ nfs4_transform_lock_offset(struct file_lock *lock)
lock->fl_end = OFFSET_MAX;
}
-int
+static int
nfs4_verify_lock_stateowner(struct nfs4_stateowner *sop, unsigned int hashval)
{
struct nfs4_stateowner *local = NULL;
@@ -2498,22 +2590,6 @@ nfs4_set_lock_denied(struct file_lock *fl, struct nfsd4_lock_denied *deny)
}
static struct nfs4_stateowner *
-find_lockstateowner(struct xdr_netobj *owner, clientid_t *clid)
-{
- struct nfs4_stateowner *local = NULL;
- int i;
-
- for (i = 0; i < LOCK_HASH_SIZE; i++) {
- list_for_each_entry(local, &lock_ownerid_hashtbl[i], so_idhash) {
- if (!cmp_owner_str(local, owner, clid))
- continue;
- return local;
- }
- }
- return NULL;
-}
-
-static struct nfs4_stateowner *
find_lockstateowner_str(struct inode *inode, clientid_t *clid,
struct xdr_netobj *owner)
{
@@ -2548,13 +2624,13 @@ alloc_init_lock_stateowner(unsigned int strhashval, struct nfs4_client *clp, str
INIT_LIST_HEAD(&sop->so_idhash);
INIT_LIST_HEAD(&sop->so_strhash);
INIT_LIST_HEAD(&sop->so_perclient);
- INIT_LIST_HEAD(&sop->so_perfilestate);
- INIT_LIST_HEAD(&sop->so_perlockowner);
+ INIT_LIST_HEAD(&sop->so_stateids);
+ INIT_LIST_HEAD(&sop->so_perstateid);
INIT_LIST_HEAD(&sop->so_close_lru); /* not used */
sop->so_time = 0;
list_add(&sop->so_idhash, &lock_ownerid_hashtbl[idhashval]);
list_add(&sop->so_strhash, &lock_ownerstr_hashtbl[strhashval]);
- list_add(&sop->so_perlockowner, &open_stp->st_perlockowner);
+ list_add(&sop->so_perstateid, &open_stp->st_lockowners);
sop->so_is_open_owner = 0;
sop->so_id = current_ownerid++;
sop->so_client = clp;
@@ -2567,24 +2643,24 @@ alloc_init_lock_stateowner(unsigned int strhashval, struct nfs4_client *clp, str
return sop;
}
-struct nfs4_stateid *
+static struct nfs4_stateid *
alloc_init_lock_stateid(struct nfs4_stateowner *sop, struct nfs4_file *fp, struct nfs4_stateid *open_stp)
{
struct nfs4_stateid *stp;
unsigned int hashval = stateid_hashval(sop->so_id, fp->fi_id);
- if ((stp = kmalloc(sizeof(struct nfs4_stateid),
- GFP_KERNEL)) == NULL)
+ stp = nfs4_alloc_stateid();
+ if (stp == NULL)
goto out;
INIT_LIST_HEAD(&stp->st_hash);
INIT_LIST_HEAD(&stp->st_perfile);
- INIT_LIST_HEAD(&stp->st_perfilestate);
- INIT_LIST_HEAD(&stp->st_perlockowner); /* not used */
+ INIT_LIST_HEAD(&stp->st_perstateowner);
+ INIT_LIST_HEAD(&stp->st_lockowners); /* not used */
list_add(&stp->st_hash, &lockstateid_hashtbl[hashval]);
- list_add(&stp->st_perfile, &fp->fi_perfile);
- list_add_perfile++;
- list_add(&stp->st_perfilestate, &sop->so_perfilestate);
+ list_add(&stp->st_perfile, &fp->fi_stateids);
+ list_add(&stp->st_perstateowner, &sop->so_stateids);
stp->st_stateowner = sop;
+ get_nfs4_file(fp);
stp->st_file = fp;
stp->st_stateid.si_boot = boot_time;
stp->st_stateid.si_stateownerid = sop->so_id;
@@ -2598,7 +2674,7 @@ out:
return stp;
}
-int
+static int
check_lock_length(u64 offset, u64 length)
{
return ((length == 0) || ((length != ~(u64)0) &&
@@ -2611,7 +2687,7 @@ check_lock_length(u64 offset, u64 length)
int
nfsd4_lock(struct svc_rqst *rqstp, struct svc_fh *current_fh, struct nfsd4_lock *lock)
{
- struct nfs4_stateowner *lock_sop = NULL, *open_sop = NULL;
+ struct nfs4_stateowner *open_sop = NULL;
struct nfs4_stateid *lock_stp;
struct file *filp;
struct file_lock file_lock;
@@ -2670,16 +2746,9 @@ nfsd4_lock(struct svc_rqst *rqstp, struct svc_fh *current_fh, struct nfsd4_lock
strhashval = lock_ownerstr_hashval(fp->fi_inode,
open_sop->so_client->cl_clientid.cl_id,
&lock->v.new.owner);
- /*
- * If we already have this lock owner, the client is in
- * error (or our bookeeping is wrong!)
- * for asking for a 'new lock'.
- */
- status = nfserr_bad_stateid;
- lock_sop = find_lockstateowner(&lock->v.new.owner,
- &lock->v.new.clientid);
- if (lock_sop)
- goto out;
+ /* XXX: Do we need to check for duplicate stateowners on
+ * the same file, or should they just be allowed (and
+ * create new stateids)? */
status = nfserr_resource;
if (!(lock->lk_stateowner = alloc_init_lock_stateowner(strhashval, open_sop->so_client, open_stp, lock)))
goto out;
@@ -2970,8 +3039,11 @@ int
nfsd4_release_lockowner(struct svc_rqst *rqstp, struct nfsd4_release_lockowner *rlockowner)
{
clientid_t *clid = &rlockowner->rl_clientid;
- struct nfs4_stateowner *local = NULL;
+ struct nfs4_stateowner *sop;
+ struct nfs4_stateid *stp;
struct xdr_netobj *owner = &rlockowner->rl_owner;
+ struct list_head matches;
+ int i;
int status;
dprintk("nfsd4_release_lockowner clientid: (%08x/%08x):\n",
@@ -2987,22 +3059,32 @@ nfsd4_release_lockowner(struct svc_rqst *rqstp, struct nfsd4_release_lockowner *
nfs4_lock_state();
- status = nfs_ok;
- local = find_lockstateowner(owner, clid);
- if (local) {
- struct nfs4_stateid *stp;
-
- /* check for any locks held by any stateid
- * associated with the (lock) stateowner */
- status = nfserr_locks_held;
- list_for_each_entry(stp, &local->so_perfilestate,
- st_perfilestate) {
- if (check_for_locks(stp->st_vfs_file, local))
- goto out;
+ status = nfserr_locks_held;
+ /* XXX: we're doing a linear search through all the lockowners.
+ * Yipes! For now we'll just hope clients aren't really using
+ * release_lockowner much, but eventually we have to fix these
+ * data structures. */
+ INIT_LIST_HEAD(&matches);
+ for (i = 0; i < LOCK_HASH_SIZE; i++) {
+ list_for_each_entry(sop, &lock_ownerid_hashtbl[i], so_idhash) {
+ if (!cmp_owner_str(sop, owner, clid))
+ continue;
+ list_for_each_entry(stp, &sop->so_stateids,
+ st_perstateowner) {
+ if (check_for_locks(stp->st_vfs_file, sop))
+ goto out;
+ /* Note: so_perclient unused for lockowners,
+ * so it's OK to fool with here. */
+ list_add(&sop->so_perclient, &matches);
+ }
}
- /* no locks held by (lock) stateowner */
- status = nfs_ok;
- release_stateowner(local);
+ }
+ /* Clients probably won't expect us to return with some (but not all)
+ * of the lockowner state released; so don't release any until all
+ * have been checked. */
+ status = nfs_ok;
+ list_for_each_entry(sop, &matches, so_perclient) {
+ release_stateowner(sop);
}
out:
nfs4_unlock_state();
@@ -3010,39 +3092,38 @@ out:
}
static inline struct nfs4_client_reclaim *
-alloc_reclaim(int namelen)
+alloc_reclaim(void)
{
- struct nfs4_client_reclaim *crp = NULL;
+ return kmalloc(sizeof(struct nfs4_client_reclaim), GFP_KERNEL);
+}
- crp = kmalloc(sizeof(struct nfs4_client_reclaim), GFP_KERNEL);
- if (!crp)
- return NULL;
- crp->cr_name.data = kmalloc(namelen, GFP_KERNEL);
- if (!crp->cr_name.data) {
- kfree(crp);
- return NULL;
- }
- return crp;
+int
+nfs4_has_reclaimed_state(const char *name)
+{
+ unsigned int strhashval = clientstr_hashval(name);
+ struct nfs4_client *clp;
+
+ clp = find_confirmed_client_by_str(name, strhashval);
+ return clp ? 1 : 0;
}
/*
* failure => all reset bets are off, nfserr_no_grace...
*/
-static int
-nfs4_client_to_reclaim(char *name, int namlen)
+int
+nfs4_client_to_reclaim(const char *name)
{
unsigned int strhashval;
struct nfs4_client_reclaim *crp = NULL;
- dprintk("NFSD nfs4_client_to_reclaim NAME: %.*s\n", namlen, name);
- crp = alloc_reclaim(namlen);
+ dprintk("NFSD nfs4_client_to_reclaim NAME: %.*s\n", HEXDIR_LEN, name);
+ crp = alloc_reclaim();
if (!crp)
return 0;
- strhashval = clientstr_hashval(name, namlen);
+ strhashval = clientstr_hashval(name);
INIT_LIST_HEAD(&crp->cr_strhash);
list_add(&crp->cr_strhash, &reclaim_str_hashtbl[strhashval]);
- memcpy(crp->cr_name.data, name, namlen);
- crp->cr_name.len = namlen;
+ memcpy(crp->cr_recdir, name, HEXDIR_LEN);
reclaim_str_hashtbl_size++;
return 1;
}
@@ -3053,13 +3134,11 @@ nfs4_release_reclaim(void)
struct nfs4_client_reclaim *crp = NULL;
int i;
- BUG_ON(!nfs4_reclaim_init);
for (i = 0; i < CLIENT_HASH_SIZE; i++) {
while (!list_empty(&reclaim_str_hashtbl[i])) {
crp = list_entry(reclaim_str_hashtbl[i].next,
struct nfs4_client_reclaim, cr_strhash);
list_del(&crp->cr_strhash);
- kfree(crp->cr_name.data);
kfree(crp);
reclaim_str_hashtbl_size--;
}
@@ -3069,7 +3148,7 @@ nfs4_release_reclaim(void)
/*
* called from OPEN, CLAIM_PREVIOUS with a new clientid. */
-struct nfs4_client_reclaim *
+static struct nfs4_client_reclaim *
nfs4_find_reclaim_client(clientid_t *clid)
{
unsigned int strhashval;
@@ -3082,13 +3161,14 @@ nfs4_find_reclaim_client(clientid_t *clid)
if (clp == NULL)
return NULL;
- dprintk("NFSD: nfs4_find_reclaim_client for %.*s\n",
- clp->cl_name.len, clp->cl_name.data);
+ dprintk("NFSD: nfs4_find_reclaim_client for %.*s with recdir %s\n",
+ clp->cl_name.len, clp->cl_name.data,
+ clp->cl_recdir);
/* find clp->cl_name in reclaim_str_hashtbl */
- strhashval = clientstr_hashval(clp->cl_name.data, clp->cl_name.len);
+ strhashval = clientstr_hashval(clp->cl_recdir);
list_for_each_entry(crp, &reclaim_str_hashtbl[strhashval], cr_strhash) {
- if (cmp_name(&crp->cr_name, &clp->cl_name)) {
+ if (same_name(crp->cr_recdir, clp->cl_recdir)) {
return crp;
}
}
@@ -3101,30 +3181,16 @@ nfs4_find_reclaim_client(clientid_t *clid)
int
nfs4_check_open_reclaim(clientid_t *clid)
{
- struct nfs4_client_reclaim *crp;
-
- if ((crp = nfs4_find_reclaim_client(clid)) == NULL)
- return nfserr_reclaim_bad;
- return nfs_ok;
+ return nfs4_find_reclaim_client(clid) ? nfs_ok : nfserr_reclaim_bad;
}
+/* initialization to perform at module load time: */
-/*
- * Start and stop routines
- */
-
-static void
-__nfs4_state_init(void)
+void
+nfs4_state_init(void)
{
int i;
- time_t grace_time;
- if (!nfs4_reclaim_init) {
- for (i = 0; i < CLIENT_HASH_SIZE; i++)
- INIT_LIST_HEAD(&reclaim_str_hashtbl[i]);
- reclaim_str_hashtbl_size = 0;
- nfs4_reclaim_init = 1;
- }
for (i = 0; i < CLIENT_HASH_SIZE; i++) {
INIT_LIST_HEAD(&conf_id_hashtbl[i]);
INIT_LIST_HEAD(&conf_str_hashtbl[i]);
@@ -3146,26 +3212,46 @@ __nfs4_state_init(void)
INIT_LIST_HEAD(&lock_ownerid_hashtbl[i]);
INIT_LIST_HEAD(&lock_ownerstr_hashtbl[i]);
}
- memset(&zerostateid, 0, sizeof(stateid_t));
memset(&onestateid, ~0, sizeof(stateid_t));
-
INIT_LIST_HEAD(&close_lru);
INIT_LIST_HEAD(&client_lru);
INIT_LIST_HEAD(&del_recall_lru);
- spin_lock_init(&recall_lock);
+ for (i = 0; i < CLIENT_HASH_SIZE; i++)
+ INIT_LIST_HEAD(&reclaim_str_hashtbl[i]);
+ reclaim_str_hashtbl_size = 0;
+}
+
+static void
+nfsd4_load_reboot_recovery_data(void)
+{
+ int status;
+
+ nfs4_lock_state();
+ nfsd4_init_recdir(user_recovery_dirname);
+ status = nfsd4_recdir_load();
+ nfs4_unlock_state();
+ if (status)
+ printk("NFSD: Failure reading reboot recovery data\n");
+}
+
+/* initialization to perform when the nfsd service is started: */
+
+static void
+__nfs4_state_start(void)
+{
+ time_t grace_time;
+
boot_time = get_seconds();
- grace_time = max(old_lease_time, lease_time);
- if (reclaim_str_hashtbl_size == 0)
- grace_time = 0;
- if (grace_time)
- printk("NFSD: starting %ld-second grace period\n", grace_time);
- grace_end = boot_time + grace_time;
- INIT_WORK(&laundromat_work,laundromat_main, NULL);
- schedule_delayed_work(&laundromat_work, NFSD_LEASE_TIME*HZ);
+ grace_time = max(user_lease_time, lease_time);
+ lease_time = user_lease_time;
+ in_grace = 1;
+ printk("NFSD: starting %ld-second grace period\n", grace_time);
+ laundry_wq = create_singlethread_workqueue("nfsd4");
+ queue_delayed_work(laundry_wq, &laundromat_work, grace_time*HZ);
}
int
-nfs4_state_init(void)
+nfs4_state_start(void)
{
int status;
@@ -3174,7 +3260,8 @@ nfs4_state_init(void)
status = nfsd4_init_slabs();
if (status)
return status;
- __nfs4_state_init();
+ nfsd4_load_reboot_recovery_data();
+ __nfs4_state_start();
nfs4_init = 1;
return 0;
}
@@ -3182,14 +3269,7 @@ nfs4_state_init(void)
int
nfs4_in_grace(void)
{
- return get_seconds() < grace_end;
-}
-
-void
-set_no_grace(void)
-{
- printk("NFSD: ERROR in reboot recovery. State reclaims will fail.\n");
- grace_end = get_seconds();
+ return in_grace;
}
time_t
@@ -3236,21 +3316,11 @@ __nfs4_state_shutdown(void)
unhash_delegation(dp);
}
- release_all_files();
cancel_delayed_work(&laundromat_work);
- flush_scheduled_work();
+ flush_workqueue(laundry_wq);
+ destroy_workqueue(laundry_wq);
+ nfsd4_shutdown_recdir();
nfs4_init = 0;
- dprintk("NFSD: list_add_perfile %d list_del_perfile %d\n",
- list_add_perfile, list_del_perfile);
- dprintk("NFSD: add_perclient %d del_perclient %d\n",
- add_perclient, del_perclient);
- dprintk("NFSD: alloc_file %d free_file %d\n",
- alloc_file, free_file);
- dprintk("NFSD: vfsopen %d vfsclose %d\n",
- vfsopen, vfsclose);
- dprintk("NFSD: alloc_delegation %d free_delegation %d\n",
- alloc_delegation, free_delegation);
-
}
void
@@ -3263,56 +3333,48 @@ nfs4_state_shutdown(void)
nfs4_unlock_state();
}
+static void
+nfs4_set_recdir(char *recdir)
+{
+ nfs4_lock_state();
+ strcpy(user_recovery_dirname, recdir);
+ nfs4_unlock_state();
+}
+
+/*
+ * Change the NFSv4 recovery directory to recdir.
+ */
+int
+nfs4_reset_recoverydir(char *recdir)
+{
+ int status;
+ struct nameidata nd;
+
+ status = path_lookup(recdir, LOOKUP_FOLLOW, &nd);
+ if (status)
+ return status;
+ status = -ENOTDIR;
+ if (S_ISDIR(nd.dentry->d_inode->i_mode)) {
+ nfs4_set_recdir(recdir);
+ status = 0;
+ }
+ path_release(&nd);
+ return status;
+}
+
/*
* Called when leasetime is changed.
*
- * if nfsd is not started, simply set the global lease.
- *
- * if nfsd(s) are running, lease change requires nfsv4 state to be reset.
- * e.g: boot_time is reset, existing nfs4_client structs are
- * used to fill reclaim_str_hashtbl, then all state (except for the
- * reclaim_str_hashtbl) is re-initialized.
- *
- * if the old lease time is greater than the new lease time, the grace
- * period needs to be set to the old lease time to allow clients to reclaim
- * their state. XXX - we may want to set the grace period == lease time
- * after an initial grace period == old lease time
- *
- * if an error occurs in this process, the new lease is set, but the server
- * will not honor OPEN or LOCK reclaims, and will return nfserr_no_grace
- * which means OPEN/LOCK/READ/WRITE will fail during grace period.
- *
- * clients will attempt to reset all state with SETCLIENTID/CONFIRM, and
- * OPEN and LOCK reclaims.
+ * The only way the protocol gives us to handle on-the-fly lease changes is to
+ * simulate a reboot. Instead of doing that, we just wait till the next time
+ * we start to register any changes in lease time. If the administrator
+ * really wants to change the lease time *now*, they can go ahead and bring
+ * nfsd down and then back up again after changing the lease time.
*/
void
nfs4_reset_lease(time_t leasetime)
{
- struct nfs4_client *clp;
- int i;
-
- printk("NFSD: New leasetime %ld\n",leasetime);
- if (!nfs4_init)
- return;
- nfs4_lock_state();
- old_lease_time = lease_time;
- lease_time = leasetime;
-
- nfs4_release_reclaim();
-
- /* populate reclaim_str_hashtbl with current confirmed nfs4_clientid */
- for (i = 0; i < CLIENT_HASH_SIZE; i++) {
- list_for_each_entry(clp, &conf_id_hashtbl[i], cl_idhash) {
- if (!nfs4_client_to_reclaim(clp->cl_name.data,
- clp->cl_name.len)) {
- nfs4_release_reclaim();
- goto init_state;
- }
- }
- }
-init_state:
- __nfs4_state_shutdown();
- __nfs4_state_init();
- nfs4_unlock_state();
+ lock_kernel();
+ user_lease_time = leasetime;
+ unlock_kernel();
}
-
diff --git a/fs/nfsd/nfs4xdr.c b/fs/nfsd/nfs4xdr.c
index 36a058a112d..91fb171d2ac 100644
--- a/fs/nfsd/nfs4xdr.c
+++ b/fs/nfsd/nfs4xdr.c
@@ -136,7 +136,7 @@ xdr_error: \
} \
} while (0)
-u32 *read_buf(struct nfsd4_compoundargs *argp, int nbytes)
+static u32 *read_buf(struct nfsd4_compoundargs *argp, int nbytes)
{
/* We want more bytes than seem to be available.
* Maybe we need a new page, maybe we have just run out
@@ -190,7 +190,7 @@ defer_free(struct nfsd4_compoundargs *argp,
return 0;
}
-char *savemem(struct nfsd4_compoundargs *argp, u32 *p, int nbytes)
+static char *savemem(struct nfsd4_compoundargs *argp, u32 *p, int nbytes)
{
void *new = NULL;
if (p == argp->tmp) {
@@ -1366,7 +1366,10 @@ nfsd4_encode_fattr(struct svc_fh *fhp, struct svc_export *exp,
if (bmval0 & FATTR4_WORD0_FH_EXPIRE_TYPE) {
if ((buflen -= 4) < 0)
goto out_resource;
- WRITE32( NFS4_FH_NOEXPIRE_WITH_OPEN | NFS4_FH_VOL_RENAME );
+ if (exp->ex_flags & NFSEXP_NOSUBTREECHECK)
+ WRITE32(NFS4_FH_VOLATILE_ANY);
+ else
+ WRITE32(NFS4_FH_VOLATILE_ANY|NFS4_FH_VOL_RENAME);
}
if (bmval0 & FATTR4_WORD0_CHANGE) {
/*
@@ -1969,7 +1972,7 @@ nfsd4_encode_open(struct nfsd4_compoundres *resp, int nfserr, struct nfsd4_open
case NFS4_OPEN_DELEGATE_READ:
RESERVE_SPACE(20 + sizeof(stateid_t));
WRITEMEM(&open->op_delegate_stateid, sizeof(stateid_t));
- WRITE32(0);
+ WRITE32(open->op_recall);
/*
* TODO: ACE's in delegations
diff --git a/fs/nfsd/nfsctl.c b/fs/nfsd/nfsctl.c
index 161afdcb8f7..841c562991e 100644
--- a/fs/nfsd/nfsctl.c
+++ b/fs/nfsd/nfsctl.c
@@ -51,6 +51,7 @@ enum {
NFSD_Fh,
NFSD_Threads,
NFSD_Leasetime,
+ NFSD_RecoveryDir,
};
/*
@@ -66,6 +67,7 @@ static ssize_t write_getfs(struct file *file, char *buf, size_t size);
static ssize_t write_filehandle(struct file *file, char *buf, size_t size);
static ssize_t write_threads(struct file *file, char *buf, size_t size);
static ssize_t write_leasetime(struct file *file, char *buf, size_t size);
+static ssize_t write_recoverydir(struct file *file, char *buf, size_t size);
static ssize_t (*write_op[])(struct file *, char *, size_t) = {
[NFSD_Svc] = write_svc,
@@ -78,6 +80,7 @@ static ssize_t (*write_op[])(struct file *, char *, size_t) = {
[NFSD_Fh] = write_filehandle,
[NFSD_Threads] = write_threads,
[NFSD_Leasetime] = write_leasetime,
+ [NFSD_RecoveryDir] = write_recoverydir,
};
static ssize_t nfsctl_transaction_write(struct file *file, const char __user *buf, size_t size, loff_t *pos)
@@ -349,6 +352,25 @@ static ssize_t write_leasetime(struct file *file, char *buf, size_t size)
return strlen(buf);
}
+static ssize_t write_recoverydir(struct file *file, char *buf, size_t size)
+{
+ char *mesg = buf;
+ char *recdir;
+ int len, status;
+
+ if (size > PATH_MAX || buf[size-1] != '\n')
+ return -EINVAL;
+ buf[size-1] = 0;
+
+ recdir = mesg;
+ len = qword_get(&mesg, recdir, size);
+ if (len <= 0)
+ return -EINVAL;
+
+ status = nfs4_reset_recoverydir(recdir);
+ return strlen(buf);
+}
+
/*----------------------------------------------------------------------------*/
/*
* populating the filesystem.
@@ -369,6 +391,7 @@ static int nfsd_fill_super(struct super_block * sb, void * data, int silent)
[NFSD_Threads] = {"threads", &transaction_ops, S_IWUSR|S_IRUSR},
#ifdef CONFIG_NFSD_V4
[NFSD_Leasetime] = {"nfsv4leasetime", &transaction_ops, S_IWUSR|S_IRUSR},
+ [NFSD_RecoveryDir] = {"nfsv4recoverydir", &transaction_ops, S_IWUSR|S_IRUSR},
#endif
/* last one */ {""}
};
@@ -397,9 +420,8 @@ static int __init init_nfsd(void)
nfsd_cache_init(); /* RPC reply cache */
nfsd_export_init(); /* Exports table */
nfsd_lockd_init(); /* lockd->nfsd callbacks */
-#ifdef CONFIG_NFSD_V4
+ nfs4_state_init(); /* NFSv4 locking state */
nfsd_idmap_init(); /* Name to ID mapping */
-#endif /* CONFIG_NFSD_V4 */
if (proc_mkdir("fs/nfs", NULL)) {
struct proc_dir_entry *entry;
entry = create_proc_entry("fs/nfs/exports", 0, NULL);
@@ -426,9 +448,7 @@ static void __exit exit_nfsd(void)
remove_proc_entry("fs/nfs", NULL);
nfsd_stat_shutdown();
nfsd_lockd_shutdown();
-#ifdef CONFIG_NFSD_V4
nfsd_idmap_shutdown();
-#endif /* CONFIG_NFSD_V4 */
unregister_filesystem(&nfsd_fs_type);
}
diff --git a/fs/nfsd/nfsproc.c b/fs/nfsd/nfsproc.c
index 757f9d20803..0aa1b9603d7 100644
--- a/fs/nfsd/nfsproc.c
+++ b/fs/nfsd/nfsproc.c
@@ -591,6 +591,7 @@ nfserrno (int errno)
{ nfserr_dropit, -ENOMEM },
{ nfserr_badname, -ESRCH },
{ nfserr_io, -ETXTBSY },
+ { nfserr_notsupp, -EOPNOTSUPP },
{ -1, -EIO }
};
int i;
diff --git a/fs/nfsd/nfssvc.c b/fs/nfsd/nfssvc.c
index 02ded7cfbdc..07b9a065e9d 100644
--- a/fs/nfsd/nfssvc.c
+++ b/fs/nfsd/nfssvc.c
@@ -31,6 +31,7 @@
#include <linux/nfsd/stats.h>
#include <linux/nfsd/cache.h>
#include <linux/lockd/bind.h>
+#include <linux/nfsacl.h>
#define NFSDDBG_FACILITY NFSDDBG_SVC
@@ -94,7 +95,7 @@ nfsd_svc(unsigned short port, int nrservs)
error = nfsd_racache_init(2*nrservs);
if (error<0)
goto out;
- error = nfs4_state_init();
+ error = nfs4_state_start();
if (error<0)
goto out;
if (!nfsd_serv) {
@@ -362,6 +363,32 @@ nfsd_dispatch(struct svc_rqst *rqstp, u32 *statp)
return 1;
}
+#if defined(CONFIG_NFSD_V2_ACL) || defined(CONFIG_NFSD_V3_ACL)
+static struct svc_stat nfsd_acl_svcstats;
+static struct svc_version * nfsd_acl_version[] = {
+ [2] = &nfsd_acl_version2,
+ [3] = &nfsd_acl_version3,
+};
+
+#define NFSD_ACL_NRVERS (sizeof(nfsd_acl_version)/sizeof(nfsd_acl_version[0]))
+static struct svc_program nfsd_acl_program = {
+ .pg_prog = NFS_ACL_PROGRAM,
+ .pg_nvers = NFSD_ACL_NRVERS,
+ .pg_vers = nfsd_acl_version,
+ .pg_name = "nfsd",
+ .pg_class = "nfsd",
+ .pg_stats = &nfsd_acl_svcstats,
+};
+
+static struct svc_stat nfsd_acl_svcstats = {
+ .program = &nfsd_acl_program,
+};
+
+#define nfsd_acl_program_p &nfsd_acl_program
+#else
+#define nfsd_acl_program_p NULL
+#endif /* defined(CONFIG_NFSD_V2_ACL) || defined(CONFIG_NFSD_V3_ACL) */
+
extern struct svc_version nfsd_version2, nfsd_version3, nfsd_version4;
static struct svc_version * nfsd_version[] = {
@@ -376,6 +403,7 @@ static struct svc_version * nfsd_version[] = {
#define NFSD_NRVERS (sizeof(nfsd_version)/sizeof(nfsd_version[0]))
struct svc_program nfsd_program = {
+ .pg_next = nfsd_acl_program_p,
.pg_prog = NFS_PROGRAM, /* program number */
.pg_nvers = NFSD_NRVERS, /* nr of entries in nfsd_version */
.pg_vers = nfsd_version, /* version table */
diff --git a/fs/nfsd/nfsxdr.c b/fs/nfsd/nfsxdr.c
index 948b08287c9..b45999ff33e 100644
--- a/fs/nfsd/nfsxdr.c
+++ b/fs/nfsd/nfsxdr.c
@@ -49,6 +49,12 @@ decode_fh(u32 *p, struct svc_fh *fhp)
return p + (NFS_FHSIZE >> 2);
}
+/* Helper function for NFSv2 ACL code */
+u32 *nfs2svc_decode_fh(u32 *p, struct svc_fh *fhp)
+{
+ return decode_fh(p, fhp);
+}
+
static inline u32 *
encode_fh(u32 *p, struct svc_fh *fhp)
{
@@ -190,6 +196,11 @@ encode_fattr(struct svc_rqst *rqstp, u32 *p, struct svc_fh *fhp)
return p;
}
+/* Helper function for NFSv2 ACL code */
+u32 *nfs2svc_encode_fattr(struct svc_rqst *rqstp, u32 *p, struct svc_fh *fhp)
+{
+ return encode_fattr(rqstp, p, fhp);
+}
/*
* XDR decode functions
diff --git a/fs/nfsd/vfs.c b/fs/nfsd/vfs.c
index e3e9d217236..de340ffd33c 100644
--- a/fs/nfsd/vfs.c
+++ b/fs/nfsd/vfs.c
@@ -46,10 +46,10 @@
#include <linux/nfsd/nfsfh.h>
#include <linux/quotaops.h>
#include <linux/dnotify.h>
-#ifdef CONFIG_NFSD_V4
+#include <linux/xattr_acl.h>
#include <linux/posix_acl.h>
+#ifdef CONFIG_NFSD_V4
#include <linux/posix_acl_xattr.h>
-#include <linux/xattr_acl.h>
#include <linux/xattr.h>
#include <linux/nfs4.h>
#include <linux/nfs4_acl.h>
@@ -424,13 +424,13 @@ nfsd4_set_nfs4_acl(struct svc_rqst *rqstp, struct svc_fh *fhp,
goto out_nfserr;
if (pacl) {
- error = set_nfsv4_acl_one(dentry, pacl, XATTR_NAME_ACL_ACCESS);
+ error = set_nfsv4_acl_one(dentry, pacl, POSIX_ACL_XATTR_ACCESS);
if (error < 0)
goto out_nfserr;
}
if (dpacl) {
- error = set_nfsv4_acl_one(dentry, dpacl, XATTR_NAME_ACL_DEFAULT);
+ error = set_nfsv4_acl_one(dentry, dpacl, POSIX_ACL_XATTR_DEFAULT);
if (error < 0)
goto out_nfserr;
}
@@ -497,7 +497,7 @@ nfsd4_get_nfs4_acl(struct svc_rqst *rqstp, struct dentry *dentry, struct nfs4_ac
struct posix_acl *pacl = NULL, *dpacl = NULL;
unsigned int flags = 0;
- pacl = _get_posix_acl(dentry, XATTR_NAME_ACL_ACCESS);
+ pacl = _get_posix_acl(dentry, POSIX_ACL_XATTR_ACCESS);
if (IS_ERR(pacl) && PTR_ERR(pacl) == -ENODATA)
pacl = posix_acl_from_mode(inode->i_mode, GFP_KERNEL);
if (IS_ERR(pacl)) {
@@ -507,7 +507,7 @@ nfsd4_get_nfs4_acl(struct svc_rqst *rqstp, struct dentry *dentry, struct nfs4_ac
}
if (S_ISDIR(inode->i_mode)) {
- dpacl = _get_posix_acl(dentry, XATTR_NAME_ACL_DEFAULT);
+ dpacl = _get_posix_acl(dentry, POSIX_ACL_XATTR_DEFAULT);
if (IS_ERR(dpacl) && PTR_ERR(dpacl) == -ENODATA)
dpacl = NULL;
else if (IS_ERR(dpacl)) {
@@ -1857,3 +1857,107 @@ nfsd_racache_init(int cache_size)
nfsdstats.ra_size = cache_size;
return 0;
}
+
+#if defined(CONFIG_NFSD_V2_ACL) || defined(CONFIG_NFSD_V3_ACL)
+struct posix_acl *
+nfsd_get_posix_acl(struct svc_fh *fhp, int type)
+{
+ struct inode *inode = fhp->fh_dentry->d_inode;
+ char *name;
+ void *value = NULL;
+ ssize_t size;
+ struct posix_acl *acl;
+
+ if (!IS_POSIXACL(inode) || !inode->i_op || !inode->i_op->getxattr)
+ return ERR_PTR(-EOPNOTSUPP);
+ switch(type) {
+ case ACL_TYPE_ACCESS:
+ name = XATTR_NAME_ACL_ACCESS;
+ break;
+ case ACL_TYPE_DEFAULT:
+ name = XATTR_NAME_ACL_DEFAULT;
+ break;
+ default:
+ return ERR_PTR(-EOPNOTSUPP);
+ }
+
+ size = inode->i_op->getxattr(fhp->fh_dentry, name, NULL, 0);
+
+ if (size < 0) {
+ acl = ERR_PTR(size);
+ goto getout;
+ } else if (size > 0) {
+ value = kmalloc(size, GFP_KERNEL);
+ if (!value) {
+ acl = ERR_PTR(-ENOMEM);
+ goto getout;
+ }
+ size = inode->i_op->getxattr(fhp->fh_dentry, name, value, size);
+ if (size < 0) {
+ acl = ERR_PTR(size);
+ goto getout;
+ }
+ }
+ acl = posix_acl_from_xattr(value, size);
+
+getout:
+ kfree(value);
+ return acl;
+}
+
+int
+nfsd_set_posix_acl(struct svc_fh *fhp, int type, struct posix_acl *acl)
+{
+ struct inode *inode = fhp->fh_dentry->d_inode;
+ char *name;
+ void *value = NULL;
+ size_t size;
+ int error;
+
+ if (!IS_POSIXACL(inode) || !inode->i_op ||
+ !inode->i_op->setxattr || !inode->i_op->removexattr)
+ return -EOPNOTSUPP;
+ switch(type) {
+ case ACL_TYPE_ACCESS:
+ name = XATTR_NAME_ACL_ACCESS;
+ break;
+ case ACL_TYPE_DEFAULT:
+ name = XATTR_NAME_ACL_DEFAULT;
+ break;
+ default:
+ return -EOPNOTSUPP;
+ }
+
+ if (acl && acl->a_count) {
+ size = xattr_acl_size(acl->a_count);
+ value = kmalloc(size, GFP_KERNEL);
+ if (!value)
+ return -ENOMEM;
+ size = posix_acl_to_xattr(acl, value, size);
+ if (size < 0) {
+ error = size;
+ goto getout;
+ }
+ } else
+ size = 0;
+
+ if (!fhp->fh_locked)
+ fh_lock(fhp); /* unlocking is done automatically */
+ if (size)
+ error = inode->i_op->setxattr(fhp->fh_dentry, name,
+ value, size, 0);
+ else {
+ if (!S_ISDIR(inode->i_mode) && type == ACL_TYPE_DEFAULT)
+ error = 0;
+ else {
+ error = inode->i_op->removexattr(fhp->fh_dentry, name);
+ if (error == -ENODATA)
+ error = 0;
+ }
+ }
+
+getout:
+ kfree(value);
+ return error;
+}
+#endif /* defined(CONFIG_NFSD_V2_ACL) || defined(CONFIG_NFSD_V3_ACL) */
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-19 15:19:27 +0000