@@ -48,11 +48,6 @@
/* #define NFS_DEBUG_VERBOSE 1 */
-static int nfs_opendir(struct inode *, struct file *);
-static int nfs_closedir(struct inode *, struct file *);
-static int nfs_readdir(struct file *, struct dir_context *);
-static int nfs_fsync_dir(struct file *, loff_t, loff_t, int);
-static loff_t nfs_llseek_dir(struct file *, loff_t, int);
static void nfs_readdir_clear_array(struct page*);
const struct file_operations nfs_dir_operations = {
@@ -63,6 +58,7 @@ const struct file_operations nfs_dir_operations = {
.release = nfs_closedir,
.fsync = nfs_fsync_dir,
};
+EXPORT_SYMBOL_GPL(nfs_dir_operations);
const struct address_space_operations nfs_dir_aops = {
.freepage = nfs_readdir_clear_array,
@@ -104,8 +100,7 @@ static void put_nfs_open_dir_context(struct inode *dir, struct nfs_open_dir_cont
/*
* Open file
*/
-static int
-nfs_opendir(struct inode *inode, struct file *filp)
+int nfs_opendir(struct inode *inode, struct file *filp)
{
int res = 0;
struct nfs_open_dir_context *ctx;
@@ -123,13 +118,14 @@ nfs_opendir(struct inode *inode, struct file *filp)
out:
return res;
}
+EXPORT_SYMBOL_GPL(nfs_opendir);
-static int
-nfs_closedir(struct inode *inode, struct file *filp)
+int nfs_closedir(struct inode *inode, struct file *filp)
{
put_nfs_open_dir_context(file_inode(filp), filp->private_data);
return 0;
}
+EXPORT_SYMBOL_GPL(nfs_closedir);
struct nfs_cache_array_entry {
u64 cookie;
@@ -1064,7 +1060,7 @@ static int uncached_readdir(struct nfs_readdir_descriptor *desc)
last cookie cache takes care of the common case of reading the
whole directory.
*/
-static int nfs_readdir(struct file *file, struct dir_context *ctx)
+int nfs_readdir(struct file *file, struct dir_context *ctx)
{
struct dentry *dentry = file_dentry(file);
struct inode *inode = d_inode(dentry);
@@ -1157,8 +1153,9 @@ static int nfs_readdir(struct file *file, struct dir_context *ctx)
dfprintk(FILE, "NFS: readdir(%pD2) returns %d\n", file, res);
return res;
}
+EXPORT_SYMBOL_GPL(nfs_readdir);
-static loff_t nfs_llseek_dir(struct file *filp, loff_t offset, int whence)
+loff_t nfs_llseek_dir(struct file *filp, loff_t offset, int whence)
{
struct nfs_open_dir_context *dir_ctx = filp->private_data;
@@ -1196,19 +1193,20 @@ static loff_t nfs_llseek_dir(struct file *filp, loff_t offset, int whence)
spin_unlock(&filp->f_lock);
return offset;
}
+EXPORT_SYMBOL_GPL(nfs_llseek_dir);
/*
* All directory operations under NFS are synchronous, so fsync()
* is a dummy operation.
*/
-static int nfs_fsync_dir(struct file *filp, loff_t start, loff_t end,
- int datasync)
+int nfs_fsync_dir(struct file *filp, loff_t start, loff_t end, int datasync)
{
dfprintk(FILE, "NFS: fsync dir(%pD2) datasync %d\n", filp, datasync);
nfs_inc_stats(file_inode(filp), NFSIOS_VFSFSYNC);
return 0;
}
+EXPORT_SYMBOL_GPL(nfs_fsync_dir);
/**
* nfs_force_lookup_revalidate - Mark the directory as having changed
@@ -127,7 +127,8 @@ int nfs_get_root(struct super_block *s, struct fs_context *fc)
if (server->caps & NFS_CAP_SECURITY_LABEL)
kflags |= SECURITY_LSM_NATIVE_LABELS;
if (ctx->clone_data.sb) {
- if (d_inode(fc->root)->i_fop != &nfs_dir_operations) {
+ if (d_inode(fc->root)->i_fop !=
+ server->nfs_client->rpc_ops->dir_ops) {
error = -ESTALE;
goto error_splat_root;
}
@@ -108,6 +108,7 @@ u64 nfs_compat_user_ino64(u64 fileid)
ino ^= fileid >> (sizeof(fileid)-sizeof(ino)) * 8;
return ino;
}
+EXPORT_SYMBOL_GPL(nfs_compat_user_ino64);
int nfs_drop_inode(struct inode *inode)
{
@@ -501,7 +502,7 @@ nfs_fhget(struct super_block *sb, struct nfs_fh *fh, struct nfs_fattr *fattr)
nfs_inode_init_regular(nfsi);
} else if (S_ISDIR(inode->i_mode)) {
inode->i_op = NFS_SB(sb)->nfs_client->rpc_ops->dir_inode_ops;
- inode->i_fop = &nfs_dir_operations;
+ inode->i_fop = NFS_SB(sb)->nfs_client->rpc_ops->dir_ops;
inode->i_data.a_ops = &nfs_dir_aops;
nfs_inode_init_dir(nfsi);
/* Deal with crossing mountpoints */
@@ -867,6 +868,44 @@ static u32 nfs_get_valid_attrmask(struct inode *inode)
return reply_mask;
}
+static int nfs_getattr_revalidate_force(struct dentry *dentry)
+{
+ struct inode *inode = d_inode(dentry);
+ struct nfs_server *server = NFS_SERVER(inode);
+
+ if (!(server->flags & NFS_MOUNT_NOAC))
+ nfs_readdirplus_parent_cache_miss(dentry);
+ else
+ nfs_readdirplus_parent_cache_hit(dentry);
+ return __nfs_revalidate_inode(server, inode);
+}
+
+static int nfs_getattr_revalidate_none(struct dentry *dentry)
+{
+ nfs_readdirplus_parent_cache_hit(dentry);
+ return NFS_STALE(d_inode(dentry)) ? -ESTALE : 0;
+}
+
+static int nfs_getattr_revalidate_maybe(struct dentry *dentry,
+ unsigned long flags)
+{
+ if (nfs_check_cache_invalid(d_inode(dentry), flags))
+ return nfs_getattr_revalidate_force(dentry);
+ return nfs_getattr_revalidate_none(dentry);
+}
+
+int nfs_getattr_revalidate(const struct path *path,
+ unsigned long flags,
+ unsigned int query_flags)
+{
+ if (query_flags & AT_STATX_FORCE_SYNC)
+ return nfs_getattr_revalidate_force(path->dentry);
+ if (!(query_flags & AT_STATX_DONT_SYNC))
+ return nfs_getattr_revalidate_maybe(path->dentry, flags);
+ return nfs_getattr_revalidate_none(path->dentry);
+}
+EXPORT_SYMBOL_GPL(nfs_getattr_revalidate);
+
int nfs_getattr(struct user_namespace *mnt_userns, const struct path *path,
struct kstat *stat, u32 request_mask, unsigned int query_flags)
{
@@ -366,6 +366,12 @@ extern struct nfs_client *nfs_init_client(struct nfs_client *clp,
const struct nfs_client_initdata *);
/* dir.c */
+int nfs_opendir(struct inode *, struct file *);
+int nfs_closedir(struct inode *, struct file *);
+int nfs_readdir(struct file *file, struct dir_context *ctx);
+int nfs_fsync_dir(struct file *, loff_t, loff_t, int);
+loff_t nfs_llseek_dir(struct file *filp, loff_t offset, int whence);
+
extern void nfs_advise_use_readdirplus(struct inode *dir);
extern void nfs_force_use_readdirplus(struct inode *dir);
extern unsigned long nfs_access_cache_count(struct shrinker *shrink,
@@ -411,6 +417,8 @@ extern void nfs_set_cache_invalid(struct inode *inode, unsigned long flags);
extern bool nfs_check_cache_invalid(struct inode *, unsigned long);
extern int nfs_wait_bit_killable(struct wait_bit_key *key, int mode);
extern int nfs_wait_atomic_killable(atomic_t *p, unsigned int mode);
+extern int nfs_getattr_revalidate(const struct path *path, unsigned long flags,
+ unsigned int query_flags);
/* super.c */
extern const struct super_operations nfs_sops;
@@ -1019,6 +1019,7 @@ const struct nfs_rpc_ops nfs_v3_clientops = {
.dir_inode_ops = &nfs3_dir_inode_operations,
.file_inode_ops = &nfs3_file_inode_operations,
.file_ops = &nfs_file_operations,
+ .dir_ops = &nfs_dir_operations,
.nlmclnt_ops = &nlmclnt_fl_close_lock_ops,
.getroot = nfs3_proc_get_root,
.submount = nfs_submount,
@@ -248,6 +248,34 @@ struct nfs4_opendata {
int rpc_status;
};
+struct nfs4_statx {
+ int real_fd; /* real FD to use,
+ -1 means use current file */
+ __u32 fa_options; /* statx flags */
+ __u64 fa_request[2]; /* Attributes requested */
+ __u64 fa_valid[2]; /* Attributes set */
+
+ struct timespec64 fa_time_backup; /* Backup time */
+ struct timespec64 fa_btime; /* Birth time */
+ /* Flag attributes */
+ __u64 fa_flags;
+ struct timespec64 fa_atime; /* Access time */
+ struct timespec64 fa_mtime; /* Modify time */
+ struct timespec64 fa_ctime; /* Change time */
+ kuid_t fa_owner_uid; /* Owner User ID */
+ kgid_t fa_group_gid; /* Primary Group ID */
+ /* Normal stat fields after this */
+ __u32 fa_mode; /* Mode */
+ unsigned int fa_nlink;
+ __u32 fa_blksize;
+ __u32 fa_spare; /* Alignment */
+ __u64 fa_ino;
+ dev_t fa_dev;
+ dev_t fa_rdev;
+ loff_t fa_size;
+ __u64 fa_blocks;
+};
+
struct nfs4_add_xprt_data {
struct nfs_client *clp;
const struct cred *cred;
@@ -315,6 +343,9 @@ extern int nfs4_set_rw_stateid(nfs4_stateid *stateid,
const struct nfs_open_context *ctx,
const struct nfs_lock_context *l_ctx,
fmode_t fmode);
+int nfs4_set_nfs4_statx(struct inode *inode,
+ struct nfs4_statx *statx,
+ struct nfs_fattr *fattr);
extern int nfs4_proc_getattr(struct nfs_server *server, struct nfs_fh *fhandle,
struct nfs_fattr *fattr, struct inode *inode);
extern int update_open_stateid(struct nfs4_state *state,
@@ -9,6 +9,8 @@
#include <linux/falloc.h>
#include <linux/mount.h>
#include <linux/nfs_fs.h>
+#include <linux/time32.h>
+#include <linux/compat.h>
#include <linux/nfs_ssc.h>
#include "delegation.h"
#include "internal.h"
@@ -132,6 +134,503 @@ nfs4_file_flush(struct file *file, fl_owner_t id)
return filemap_check_wb_err(file->f_mapping, since);
}
+static int nfs_get_timespec64(struct timespec64 *ts,
+ const struct nfs_ioctl_timespec __user *uts)
+{
+ __s64 dummy;
+ if (unlikely(get_user(dummy, &uts->tv_sec) != 0))
+ return EFAULT;
+ ts->tv_sec = dummy;
+ if (unlikely(get_user(dummy, &uts->tv_nsec) != 0))
+ return EFAULT;
+ ts->tv_nsec = dummy;
+ return 0;
+}
+
+static int nfs_put_timespec64(const struct timespec64 *ts,
+ struct nfs_ioctl_timespec __user *uts)
+{
+ __s64 dummy;
+
+ dummy = ts->tv_sec;
+ if (unlikely(put_user(dummy, &uts->tv_sec) != 0))
+ return EFAULT;
+ dummy = ts->tv_nsec;
+ if (unlikely(put_user(dummy, &uts->tv_nsec) != 0))
+ return EFAULT;
+ return 0;
+}
+
+static struct file *nfs4_get_real_file(struct file *src, unsigned int fd)
+{
+ struct file *filp = fget_raw(fd);
+ int ret = -EBADF;
+
+ if (!filp)
+ goto out;
+ /* Validate that the files share the same underlying filesystem */
+ ret = -EXDEV;
+ if (file_inode(filp)->i_sb != file_inode(src)->i_sb)
+ goto out_put;
+ return filp;
+out_put:
+ fput(filp);
+out:
+ return ERR_PTR(ret);
+}
+
+static unsigned long nfs4_statx_request_to_cache_validity(__u64 request,
+ u64 fattr_supported)
+{
+ unsigned long ret = 0;
+
+ if (request & NFS_FA_VALID_ATIME)
+ ret |= NFS_INO_INVALID_ATIME;
+ if (request & NFS_FA_VALID_CTIME)
+ ret |= NFS_INO_INVALID_CTIME;
+ if (request & NFS_FA_VALID_MTIME)
+ ret |= NFS_INO_INVALID_MTIME;
+ if (request & NFS_FA_VALID_SIZE)
+ ret |= NFS_INO_INVALID_SIZE;
+
+ if (request & NFS_FA_VALID_MODE)
+ ret |= NFS_INO_INVALID_MODE;
+ if (request & (NFS_FA_VALID_OWNER | NFS_FA_VALID_OWNER_GROUP))
+ ret |= NFS_INO_INVALID_OTHER;
+
+ if (request & NFS_FA_VALID_NLINK)
+ ret |= NFS_INO_INVALID_NLINK;
+ if (request & NFS_FA_VALID_BLOCKS)
+ ret |= NFS_INO_INVALID_BLOCKS;
+
+ if (request & NFS_FA_VALID_TIME_CREATE)
+ ret |= NFS_INO_INVALID_BTIME;
+
+ if (request & NFS_FA_VALID_ARCHIVE) {
+ if (fattr_supported & NFS_ATTR_FATTR_ARCHIVE)
+ ret |= NFS_INO_INVALID_WINATTR;
+ else if (fattr_supported & NFS_ATTR_FATTR_TIME_BACKUP)
+ ret |= NFS_INO_INVALID_WINATTR | NFS_INO_INVALID_MTIME;
+ }
+ if (request & (NFS_FA_VALID_TIME_BACKUP | NFS_FA_VALID_HIDDEN |
+ NFS_FA_VALID_SYSTEM | NFS_FA_VALID_OFFLINE))
+ ret |= NFS_INO_INVALID_WINATTR;
+
+ return ret ? (ret | NFS_INO_INVALID_CHANGE) : 0;
+}
+
+static long nfs4_ioctl_file_statx_get(struct file *dst_file,
+ struct nfs_ioctl_nfs4_statx __user *uarg)
+{
+ struct nfs4_statx args = {
+ .real_fd = -1,
+ .fa_valid = { 0 },
+ };
+ struct inode *inode;
+ struct nfs_inode *nfsi;
+ struct nfs_server *server;
+ u64 fattr_supported;
+ unsigned long reval_attr;
+ unsigned int reval_flags;
+ __u32 tmp;
+ int ret;
+
+ /*
+ * We get the first word from the uarg as it tells us whether
+ * to use the passed in struct file or use that fd to find the
+ * struct file.
+ */
+ if (get_user(args.real_fd, &uarg->real_fd))
+ return -EFAULT;
+
+ if (get_user(args.fa_options, &uarg->fa_options))
+ return -EFAULT;
+
+ if (get_user(args.fa_request[0], &uarg->fa_request[0]))
+ return -EFAULT;
+
+ if (args.real_fd >= 0) {
+ dst_file = nfs4_get_real_file(dst_file, args.real_fd);
+ if (IS_ERR(dst_file))
+ return PTR_ERR(dst_file);
+ }
+
+ /*
+ * Backward compatibility: we stole the top 32 bits of 'real_fd'
+ * to create the fa_options field, so if its value is -1, then
+ * assume it is the high word of (__s64)real_fd == -1, and just
+ * set it to zero.
+ */
+ if (args.fa_options == 0xFFFF)
+ args.fa_options = 0;
+
+ inode = file_inode(dst_file);
+ nfsi = NFS_I(inode);
+ server = NFS_SERVER(inode);
+ fattr_supported = server->fattr_valid;
+
+ trace_nfs_ioctl_file_statx_get_enter(inode);
+
+ if (args.fa_options & NFS_FA_OPTIONS_FORCE_SYNC)
+ reval_flags = AT_STATX_FORCE_SYNC;
+ else if (args.fa_options & NFS_FA_OPTIONS_DONT_SYNC)
+ reval_flags = AT_STATX_DONT_SYNC;
+ else
+ reval_flags = AT_STATX_SYNC_AS_STAT;
+
+ reval_attr = nfs4_statx_request_to_cache_validity(args.fa_request[0],
+ fattr_supported);
+
+ if ((reval_attr & (NFS_INO_INVALID_CTIME | NFS_INO_INVALID_MTIME)) &&
+ reval_flags != AT_STATX_DONT_SYNC && S_ISREG(inode->i_mode)) {
+ ret = filemap_write_and_wait(inode->i_mapping);
+ if (ret)
+ goto out;
+ }
+
+ if ((dst_file->f_path.mnt->mnt_flags & MNT_NOATIME) ||
+ ((dst_file->f_path.mnt->mnt_flags & MNT_NODIRATIME) &&
+ S_ISDIR(inode->i_mode)))
+ reval_attr &= ~NFS_INO_INVALID_ATIME;
+
+ ret = nfs_getattr_revalidate(&dst_file->f_path, reval_attr,
+ reval_flags);
+ if (ret != 0)
+ goto out;
+
+ ret = -EFAULT;
+ if ((fattr_supported & NFS_ATTR_FATTR_OWNER) &&
+ (args.fa_request[0] & NFS_FA_VALID_OWNER)) {
+ tmp = from_kuid_munged(current_user_ns(), inode->i_uid);
+ if (unlikely(put_user(tmp, &uarg->fa_owner_uid) != 0))
+ goto out;
+ args.fa_valid[0] |= NFS_FA_VALID_OWNER;
+ }
+
+ if ((fattr_supported & NFS_ATTR_FATTR_GROUP) &&
+ (args.fa_request[0] & NFS_FA_VALID_OWNER_GROUP)) {
+ tmp = from_kgid_munged(current_user_ns(), inode->i_gid);
+ if (unlikely(put_user(tmp, &uarg->fa_group_gid) != 0))
+ goto out;
+ args.fa_valid[0] |= NFS_FA_VALID_OWNER_GROUP;
+ }
+
+ if ((fattr_supported & NFS_ATTR_FATTR_TIME_BACKUP) &&
+ (args.fa_request[0] & NFS_FA_VALID_TIME_BACKUP)) {
+ if (nfs_put_timespec64(&nfsi->timebackup, &uarg->fa_time_backup))
+ goto out;
+ args.fa_valid[0] |= NFS_FA_VALID_TIME_BACKUP;
+ }
+
+ if ((fattr_supported & NFS_ATTR_FATTR_BTIME) &&
+ (args.fa_request[0] & NFS_FA_VALID_TIME_CREATE)) {
+ if (nfs_put_timespec64(&nfsi->btime, &uarg->fa_btime))
+ goto out;
+ args.fa_valid[0] |= NFS_FA_VALID_TIME_CREATE;
+ }
+
+ /* atime, mtime, and ctime are all stored in the regular inode,
+ * not the nfs inode.
+ */
+ if ((fattr_supported & NFS_ATTR_FATTR_ATIME) &&
+ (args.fa_request[0] & NFS_FA_VALID_ATIME)) {
+ if (nfs_put_timespec64(&inode->i_atime, &uarg->fa_atime))
+ goto out;
+ args.fa_valid[0] |= NFS_FA_VALID_ATIME;
+ }
+
+ if ((fattr_supported & NFS_ATTR_FATTR_MTIME) &&
+ (args.fa_request[0] & NFS_FA_VALID_MTIME)) {
+ if (nfs_put_timespec64(&inode->i_mtime, &uarg->fa_mtime))
+ goto out;
+ args.fa_valid[0] |= NFS_FA_VALID_MTIME;
+ }
+
+ if ((fattr_supported & NFS_ATTR_FATTR_CTIME) &&
+ (args.fa_request[0] & NFS_FA_VALID_CTIME)) {
+ if (nfs_put_timespec64(&inode->i_ctime, &uarg->fa_ctime))
+ goto out;
+ args.fa_valid[0] |= NFS_FA_VALID_CTIME;
+ }
+
+ /*
+ * It looks like PDFS does not support or properly handle the
+ * archive bit.
+ */
+ if ((fattr_supported & NFS_ATTR_FATTR_ARCHIVE) &&
+ (args.fa_request[0] & NFS_FA_VALID_ARCHIVE)) {
+ if (nfsi->archive)
+ args.fa_flags |= NFS_FA_FLAG_ARCHIVE;
+ args.fa_valid[0] |= NFS_FA_VALID_ARCHIVE;
+ }
+
+ if ((fattr_supported & NFS_ATTR_FATTR_TIME_BACKUP) &&
+ (args.fa_request[0] & NFS_FA_VALID_ARCHIVE)) {
+ if (timespec64_compare(&inode->i_mtime, &nfsi->timebackup) > 0)
+ args.fa_flags |= NFS_FA_FLAG_ARCHIVE;
+ args.fa_valid[0] |= NFS_FA_VALID_ARCHIVE;
+ }
+
+ if ((fattr_supported & NFS_ATTR_FATTR_HIDDEN) &&
+ (args.fa_request[0] & NFS_FA_VALID_HIDDEN)) {
+ if (nfsi->hidden)
+ args.fa_flags |= NFS_FA_FLAG_HIDDEN;
+ args.fa_valid[0] |= NFS_FA_VALID_HIDDEN;
+ }
+ if ((fattr_supported & NFS_ATTR_FATTR_SYSTEM) &&
+ (args.fa_request[0] & NFS_FA_VALID_SYSTEM)) {
+ if (nfsi->system)
+ args.fa_flags |= NFS_FA_FLAG_SYSTEM;
+ args.fa_valid[0] |= NFS_FA_VALID_SYSTEM;
+ }
+
+ if ((fattr_supported & NFS_ATTR_FATTR_OFFLINE) &&
+ (args.fa_request[0] & NFS_FA_VALID_OFFLINE)) {
+ if (nfsi->offline)
+ args.fa_flags |= NFS_FA_FLAG_OFFLINE;
+ args.fa_valid[0] |= NFS_FA_VALID_OFFLINE;
+ }
+
+ if ((args.fa_valid[0] & (NFS_FA_VALID_ARCHIVE |
+ NFS_FA_VALID_HIDDEN |
+ NFS_FA_VALID_SYSTEM |
+ NFS_FA_VALID_OFFLINE)) &&
+ put_user(args.fa_flags, &uarg->fa_flags))
+ goto out;
+
+ if ((fattr_supported & NFS_ATTR_FATTR_MODE) &&
+ (args.fa_request[0] & NFS_FA_VALID_MODE)) {
+ tmp = inode->i_mode;
+ /* This is an unsigned short we put into an __u32 */
+ if (unlikely(put_user(tmp, &uarg->fa_mode) != 0))
+ goto out;
+ args.fa_valid[0] |= NFS_FA_VALID_MODE;
+ }
+
+ if ((fattr_supported & NFS_ATTR_FATTR_NLINK) &&
+ (args.fa_request[0] & NFS_FA_VALID_NLINK)) {
+ tmp = inode->i_nlink;
+ if (unlikely(put_user(tmp, &uarg->fa_nlink) != 0))
+ goto out;
+ args.fa_valid[0] |= NFS_FA_VALID_NLINK;
+ }
+
+ if (args.fa_request[0] & NFS_FA_VALID_BLKSIZE) {
+ tmp = i_blocksize(inode);
+ if (S_ISDIR(inode->i_mode))
+ tmp = NFS_SERVER(inode)->dtsize;
+ if (unlikely(put_user(tmp, &uarg->fa_blksize) != 0))
+ goto out;
+ args.fa_valid[0] |= NFS_FA_VALID_BLKSIZE;
+ }
+
+ if (args.fa_request[0] & NFS_FA_VALID_INO) {
+ __u64 ino = nfs_compat_user_ino64(NFS_FILEID(inode));
+ if (unlikely(put_user(ino, &uarg->fa_ino) != 0))
+ goto out;
+ args.fa_valid[0] |= NFS_FA_VALID_INO;
+ }
+
+ if (args.fa_request[0] & NFS_FA_VALID_DEV) {
+ tmp = inode->i_sb->s_dev;
+ if (unlikely(put_user(tmp, &uarg->fa_dev) != 0))
+ goto out;
+ args.fa_valid[0] |= NFS_FA_VALID_DEV;
+ }
+
+ if ((fattr_supported & NFS_ATTR_FATTR_RDEV) &&
+ (args.fa_request[0] & NFS_FA_VALID_RDEV)) {
+ tmp = inode->i_rdev;
+ if (unlikely(put_user(tmp, &uarg->fa_rdev) != 0))
+ goto out;
+ args.fa_valid[0] |= NFS_FA_VALID_RDEV;
+ }
+
+ if ((fattr_supported & NFS_ATTR_FATTR_SIZE) &&
+ (args.fa_request[0] & NFS_FA_VALID_SIZE)) {
+ __s64 size = i_size_read(inode);
+ if (unlikely(put_user(size, &uarg->fa_size) != 0))
+ goto out;
+ args.fa_valid[0] |= NFS_FA_VALID_SIZE;
+ }
+
+ if ((fattr_supported &
+ (NFS_ATTR_FATTR_BLOCKS_USED | NFS_ATTR_FATTR_SPACE_USED)) &&
+ (args.fa_request[0] & NFS_FA_VALID_BLOCKS)) {
+ __s64 blocks = inode->i_blocks;
+ if (unlikely(put_user(blocks, &uarg->fa_blocks) != 0))
+ goto out;
+ args.fa_valid[0] |= NFS_FA_VALID_BLOCKS;
+ }
+
+ if (unlikely(put_user(args.fa_valid[0], &uarg->fa_valid[0]) != 0))
+ goto out;
+ if (unlikely(put_user(args.fa_valid[1], &uarg->fa_valid[1]) != 0))
+ goto out;
+
+ ret = 0;
+out:
+ if (args.real_fd >= 0)
+ fput(dst_file);
+ trace_nfs_ioctl_file_statx_get_exit(inode, ret);
+ return ret;
+}
+
+static long nfs4_ioctl_file_statx_set(struct file *dst_file,
+ struct nfs_ioctl_nfs4_statx __user *uarg)
+{
+ struct nfs4_statx args = {
+ .real_fd = -1,
+ .fa_valid = { 0 },
+ };
+ struct nfs_fattr *fattr = nfs_alloc_fattr();
+ struct inode *inode;
+ /*
+ * If you need a different error code below, you need to set it
+ */
+ int ret = -EFAULT;
+
+ if (fattr == NULL)
+ return -ENOMEM;
+
+ /*
+ * We get the first u64 word from the uarg as it tells us whether
+ * to use the passed in struct file or use that fd to find the
+ * struct file.
+ */
+ if (get_user(args.real_fd, &uarg->real_fd))
+ goto out_free;
+
+ if (args.real_fd >= 0) {
+ dst_file = nfs4_get_real_file(dst_file, args.real_fd);
+ if (IS_ERR(dst_file)) {
+ ret = PTR_ERR(dst_file);
+ goto out_free;
+ }
+ }
+ inode = file_inode(dst_file);
+ trace_nfs_ioctl_file_statx_set_enter(inode);
+
+ inode_lock(inode);
+
+ /* Write all dirty data */
+ if (S_ISREG(inode->i_mode)) {
+ ret = nfs_sync_inode(inode);
+ if (ret)
+ goto out;
+ }
+
+ ret = -EFAULT;
+ if (get_user(args.fa_valid[0], &uarg->fa_valid[0]))
+ goto out;
+ args.fa_valid[0] &= NFS_FA_VALID_ALL_ATTR_0;
+
+ if (args.fa_valid[0] & NFS_FA_VALID_OWNER) {
+ uid_t uid;
+
+ if (unlikely(get_user(uid, &uarg->fa_owner_uid) != 0))
+ goto out;
+ args.fa_owner_uid = make_kuid(current_user_ns(), uid);
+ if (!uid_valid(args.fa_owner_uid)) {
+ ret = -EINVAL;
+ goto out;
+ }
+ }
+
+ if (args.fa_valid[0] & NFS_FA_VALID_OWNER_GROUP) {
+ gid_t gid;
+
+ if (unlikely(get_user(gid, &uarg->fa_group_gid) != 0))
+ goto out;
+ args.fa_group_gid = make_kgid(current_user_ns(), gid);
+ if (!gid_valid(args.fa_group_gid)) {
+ ret = -EINVAL;
+ goto out;
+ }
+ }
+
+ if ((args.fa_valid[0] & (NFS_FA_VALID_ARCHIVE |
+ NFS_FA_VALID_HIDDEN |
+ NFS_FA_VALID_SYSTEM)) &&
+ get_user(args.fa_flags, &uarg->fa_flags))
+ goto out;
+
+ if ((args.fa_valid[0] & NFS_FA_VALID_TIME_CREATE) &&
+ nfs_get_timespec64(&args.fa_btime, &uarg->fa_btime))
+ goto out;
+
+ if ((args.fa_valid[0] & NFS_FA_VALID_ATIME) &&
+ nfs_get_timespec64(&args.fa_atime, &uarg->fa_atime))
+ goto out;
+
+ if ((args.fa_valid[0] & NFS_FA_VALID_MTIME) &&
+ nfs_get_timespec64(&args.fa_mtime, &uarg->fa_mtime))
+ goto out;
+
+ if (args.fa_valid[0] & NFS_FA_VALID_TIME_BACKUP) {
+ if (nfs_get_timespec64(&args.fa_time_backup, &uarg->fa_time_backup))
+ goto out;
+ } else if ((args.fa_valid[0] & NFS_FA_VALID_ARCHIVE) &&
+ !(NFS_SERVER(inode)->fattr_valid & NFS_ATTR_FATTR_ARCHIVE)) {
+ args.fa_valid[0] |= NFS_FA_VALID_TIME_BACKUP;
+ if (!(args.fa_flags & NFS_FA_FLAG_ARCHIVE)) {
+ nfs_revalidate_inode(inode, NFS_INO_INVALID_MTIME);
+ args.fa_time_backup.tv_sec = inode->i_mtime.tv_sec;
+ args.fa_time_backup.tv_nsec = inode->i_mtime.tv_nsec;
+ } else if (args.fa_valid[0] & NFS_FA_VALID_TIME_CREATE)
+ args.fa_time_backup = args.fa_btime;
+ else {
+ nfs_revalidate_inode(inode, NFS_INO_INVALID_BTIME);
+ args.fa_time_backup = NFS_I(inode)->btime;
+ }
+ }
+
+ if (args.fa_valid[0] & NFS_FA_VALID_SIZE) {
+ if (copy_from_user(&args.fa_size, &uarg->fa_size,
+ sizeof(args.fa_size)))
+ goto out;
+ ret = inode_newsize_ok(inode,args.fa_size);
+ if (ret)
+ goto out;
+ if (args.fa_size == i_size_read(inode))
+ args.fa_valid[0] &= ~NFS_FA_VALID_SIZE;
+ }
+
+ /*
+ * No need to update the inode because that is done in nfs4_set_nfs4_statx
+ */
+ ret = nfs4_set_nfs4_statx(inode, &args, fattr);
+
+out:
+ inode_unlock(inode);
+ if (args.real_fd >= 0)
+ fput(dst_file);
+ trace_nfs_ioctl_file_statx_set_exit(inode, ret);
+out_free:
+ nfs_free_fattr(fattr);
+ return ret;
+}
+
+static long nfs4_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
+{
+ void __user *argp = (void __user *)arg;
+ long ret;
+
+ switch (cmd) {
+ case NFS_IOC_FILE_STATX_GET:
+ ret = nfs4_ioctl_file_statx_get(file, argp);
+ break;
+ case NFS_IOC_FILE_STATX_SET:
+ ret = nfs4_ioctl_file_statx_set(file, argp);
+ break;
+ default:
+ ret = -ENOIOCTLCMD;
+ }
+
+ dprintk("%s: file=%pD2, cmd=%u, ret=%ld\n", __func__, file, cmd, ret);
+ return ret;
+}
+
#ifdef CONFIG_NFS_V4_2
static ssize_t __nfs4_copy_file_range(struct file *file_in, loff_t pos_in,
struct file *file_out, loff_t pos_out,
@@ -187,6 +686,7 @@ static ssize_t __nfs4_copy_file_range(struct file *file_in, loff_t pos_in,
return ret;
}
+
static ssize_t nfs4_copy_file_range(struct file *file_in, loff_t pos_in,
struct file *file_out, loff_t pos_out,
size_t count, unsigned int flags)
@@ -461,4 +961,15 @@ const struct file_operations nfs4_file_operations = {
#else
.llseek = nfs_file_llseek,
#endif
+ .unlocked_ioctl = nfs4_ioctl,
+};
+
+const struct file_operations nfs4_dir_operations = {
+ .llseek = nfs_llseek_dir,
+ .read = generic_read_dir,
+ .iterate_shared = nfs_readdir,
+ .open = nfs_opendir,
+ .release = nfs_closedir,
+ .fsync = nfs_fsync_dir,
+ .unlocked_ioctl = nfs4_ioctl,
};
@@ -7961,6 +7961,129 @@ static int _nfs41_proc_get_locations(struct inode *inode,
#endif /* CONFIG_NFS_V4_1 */
+static int _nfs4_set_nfs4_statx(struct inode *inode,
+ struct nfs4_statx *statx,
+ struct nfs_fattr *fattr)
+{
+ const __u64 statx_win = NFS_FA_VALID_TIME_CREATE |
+ NFS_FA_VALID_TIME_BACKUP |
+ NFS_FA_VALID_ARCHIVE | NFS_FA_VALID_HIDDEN |
+ NFS_FA_VALID_SYSTEM;
+ struct iattr sattr = {0};
+ struct nfs_server *server = NFS_SERVER(inode);
+ __u32 bitmask[3];
+ struct nfs_setattrargs arg = {
+ .fh = NFS_FH(inode),
+ .iap = &sattr,
+ .server = server,
+ .bitmask = bitmask,
+ .statx = statx,
+ };
+ struct nfs_setattrres res = {
+ .fattr = fattr,
+ .server = server,
+ };
+ struct rpc_message msg = {
+ .rpc_proc = &nfs4_procedures[NFSPROC4_CLNT_SETATTR],
+ .rpc_argp = &arg,
+ .rpc_resp = &res,
+ };
+ int status;
+
+ nfs4_bitmap_copy_adjust(
+ bitmask, server->attr_bitmask, inode,
+ NFS_INO_INVALID_CHANGE | NFS_INO_INVALID_CTIME |
+ NFS_INO_INVALID_SIZE | NFS_INO_INVALID_OTHER |
+ NFS_INO_INVALID_BTIME | NFS_INO_INVALID_WINATTR);
+ /* Use the iattr structure to set atime and mtime since handling already
+ * exists for them using the iattr struct in the encode_attrs()
+ * (xdr encoding) routine.
+ */
+ if (statx && (statx->fa_valid[0] & NFS_FA_VALID_MTIME)) {
+ sattr.ia_valid |= ATTR_MTIME_SET;
+ sattr.ia_mtime.tv_sec = statx->fa_mtime.tv_sec;
+ sattr.ia_mtime.tv_nsec = statx->fa_mtime.tv_nsec;
+ }
+
+ if (statx && (statx->fa_valid[0] & NFS_FA_VALID_ATIME)) {
+ sattr.ia_valid |= ATTR_ATIME_SET;
+ sattr.ia_atime.tv_sec = statx->fa_atime.tv_sec;
+ sattr.ia_atime.tv_nsec = statx->fa_atime.tv_nsec;
+ }
+
+ if (statx && (statx->fa_valid[0] & NFS_FA_VALID_OWNER)) {
+ sattr.ia_valid |= ATTR_UID;
+ sattr.ia_uid = statx->fa_owner_uid;
+ }
+
+ if (statx && (statx->fa_valid[0] & NFS_FA_VALID_OWNER_GROUP)) {
+ sattr.ia_valid |= ATTR_GID;
+ sattr.ia_gid = statx->fa_group_gid;
+ }
+
+ if (statx && (statx->fa_valid[0] & NFS_FA_VALID_SIZE)) {
+ sattr.ia_valid |= ATTR_SIZE;
+ sattr.ia_size = statx->fa_size;
+ }
+
+ nfs4_stateid_copy(&arg.stateid, &zero_stateid);
+
+ status = nfs4_call_sync(server->client, server, &msg, &arg.seq_args, &res.seq_res, 1);
+ if (!status) {
+ if (statx->fa_valid[0] & statx_win) {
+ struct nfs_inode *nfsi = NFS_I(inode);
+
+ spin_lock(&inode->i_lock);
+ if (statx->fa_valid[0] & NFS_FA_VALID_TIME_CREATE)
+ nfsi->btime = statx->fa_btime;
+ if (statx->fa_valid[0] & NFS_FA_VALID_TIME_BACKUP)
+ nfsi->timebackup = statx->fa_time_backup;
+ if (statx->fa_valid[0] & NFS_FA_VALID_ARCHIVE)
+ nfsi->archive = (statx->fa_flags &
+ NFS_FA_FLAG_ARCHIVE) != 0;
+ if (statx->fa_valid[0] & NFS_FA_VALID_SYSTEM)
+ nfsi->system = (statx->fa_flags &
+ NFS_FA_FLAG_SYSTEM) != 0;
+ if (statx->fa_valid[0] & NFS_FA_VALID_HIDDEN)
+ nfsi->hidden = (statx->fa_flags &
+ NFS_FA_FLAG_HIDDEN) != 0;
+ if (statx->fa_valid[0] & NFS_FA_VALID_OFFLINE)
+ nfsi->offline = (statx->fa_flags &
+ NFS_FA_FLAG_OFFLINE) != 0;
+
+ nfsi->cache_validity &= ~NFS_INO_INVALID_CTIME;
+ if (fattr->valid & NFS_ATTR_FATTR_CTIME)
+ inode->i_ctime = fattr->ctime;
+ else
+ nfs_set_cache_invalid(
+ inode, NFS_INO_INVALID_CHANGE |
+ NFS_INO_INVALID_CTIME);
+ spin_unlock(&inode->i_lock);
+ }
+
+ nfs_setattr_update_inode(inode, &sattr, fattr);
+ } else
+ dprintk("%s failed: %d\n", __func__, status);
+
+ return status;
+}
+
+int nfs4_set_nfs4_statx(struct inode *inode,
+ struct nfs4_statx *statx,
+ struct nfs_fattr *fattr)
+{
+ struct nfs4_exception exception = { };
+ struct nfs_server *server = NFS_SERVER(inode);
+ int err;
+
+ do {
+ err = nfs4_handle_exception(server,
+ _nfs4_set_nfs4_statx(inode, statx, fattr),
+ &exception);
+ } while (exception.retry);
+ return err;
+}
+
/**
* nfs4_proc_get_locations - discover locations for a migrated FSID
* @inode: inode on FSID that is migrating
@@ -10421,6 +10544,7 @@ const struct nfs_rpc_ops nfs_v4_clientops = {
.dir_inode_ops = &nfs4_dir_inode_operations,
.file_inode_ops = &nfs4_file_inode_operations,
.file_ops = &nfs4_file_operations,
+ .dir_ops = &nfs4_dir_operations,
.getroot = nfs4_proc_get_root,
.submount = nfs4_submount,
.try_get_tree = nfs4_try_get_tree,
@@ -129,12 +129,15 @@ static int decode_layoutget(struct xdr_stream *xdr, struct rpc_rqst *req,
nfs4_fattr_value_maxsz)
#define decode_getattr_maxsz (op_decode_hdr_maxsz + nfs4_fattr_maxsz)
#define encode_attrs_maxsz (nfs4_fattr_bitmap_maxsz + \
- 1 + 2 + 1 + \
+ 1 + 2 + 1 + 1 + 1 + \
nfs4_owner_maxsz + \
nfs4_group_maxsz + \
- nfs4_label_maxsz + \
+ 1 + \
+ 1 + nfstime4_maxsz + \
+ nfstime4_maxsz + nfstime4_maxsz + \
1 + nfstime4_maxsz + \
- 1 + nfstime4_maxsz)
+ nfs4_label_maxsz + \
+ 2)
#define encode_savefh_maxsz (op_encode_hdr_maxsz)
#define decode_savefh_maxsz (op_decode_hdr_maxsz)
#define encode_restorefh_maxsz (op_encode_hdr_maxsz)
@@ -1081,6 +1084,7 @@ xdr_encode_nfstime4(__be32 *p, const struct timespec64 *t)
static void encode_attrs(struct xdr_stream *xdr, const struct iattr *iap,
const struct nfs4_label *label,
const umode_t *umask,
+ const struct nfs4_statx *statx,
const struct nfs_server *server,
const uint32_t attrmask[])
{
@@ -1153,6 +1157,34 @@ static void encode_attrs(struct xdr_stream *xdr, const struct iattr *iap,
}
}
+ if (statx && (statx->fa_valid[0] & NFS_FA_VALID_TIME_BACKUP) &&
+ (attrmask[1] & FATTR4_WORD1_TIME_BACKUP)) {
+ bmval[1] |= FATTR4_WORD1_TIME_BACKUP;
+ len += (nfstime4_maxsz << 2);
+ }
+ if (statx && (statx->fa_valid[0] & NFS_FA_VALID_TIME_CREATE) &&
+ (attrmask[1] & FATTR4_WORD1_TIME_CREATE)) {
+ bmval[1] |= FATTR4_WORD1_TIME_CREATE;
+ len += (nfstime4_maxsz << 2);
+ }
+
+ if (statx && (statx->fa_valid[0] & NFS_FA_VALID_ARCHIVE) &&
+ (attrmask[0] & FATTR4_WORD0_ARCHIVE)) {
+ bmval[0] |= FATTR4_WORD0_ARCHIVE;
+ len += 4;
+ }
+ if (statx && (statx->fa_valid[0] & NFS_FA_VALID_HIDDEN) &&
+ (attrmask[0] & FATTR4_WORD0_HIDDEN)) {
+ bmval[0] |= FATTR4_WORD0_HIDDEN;
+ len += 4;
+ }
+
+ if (statx && (statx->fa_valid[0] & NFS_FA_VALID_SYSTEM) &&
+ (attrmask[1] & FATTR4_WORD1_SYSTEM)) {
+ bmval[1] |= FATTR4_WORD1_SYSTEM;
+ len += 4;
+ }
+
if (label && (attrmask[2] & FATTR4_WORD2_SECURITY_LABEL)) {
len += 4 + 4 + 4 + (XDR_QUADLEN(label->len) << 2);
bmval[2] |= FATTR4_WORD2_SECURITY_LABEL;
@@ -1163,12 +1195,21 @@ static void encode_attrs(struct xdr_stream *xdr, const struct iattr *iap,
if (bmval[0] & FATTR4_WORD0_SIZE)
p = xdr_encode_hyper(p, iap->ia_size);
+ if (bmval[0] & FATTR4_WORD0_ARCHIVE)
+ *p++ = (statx->fa_flags & NFS_FA_FLAG_ARCHIVE) ?
+ cpu_to_be32(1) : cpu_to_be32(0);
+ if (bmval[0] & FATTR4_WORD0_HIDDEN)
+ *p++ = (statx->fa_flags & NFS_FA_FLAG_HIDDEN) ?
+ cpu_to_be32(1) : cpu_to_be32(0);
if (bmval[1] & FATTR4_WORD1_MODE)
*p++ = cpu_to_be32(iap->ia_mode & S_IALLUGO);
if (bmval[1] & FATTR4_WORD1_OWNER)
p = xdr_encode_opaque(p, owner_name, owner_namelen);
if (bmval[1] & FATTR4_WORD1_OWNER_GROUP)
p = xdr_encode_opaque(p, owner_group, owner_grouplen);
+ if (bmval[1] & FATTR4_WORD1_SYSTEM)
+ *p++ = (statx->fa_flags & NFS_FA_FLAG_SYSTEM) ?
+ cpu_to_be32(1) : cpu_to_be32(0);
if (bmval[1] & FATTR4_WORD1_TIME_ACCESS_SET) {
if (iap->ia_valid & ATTR_ATIME_SET) {
*p++ = cpu_to_be32(NFS4_SET_TO_CLIENT_TIME);
@@ -1176,6 +1217,10 @@ static void encode_attrs(struct xdr_stream *xdr, const struct iattr *iap,
} else
*p++ = cpu_to_be32(NFS4_SET_TO_SERVER_TIME);
}
+ if (bmval[1] & FATTR4_WORD1_TIME_BACKUP)
+ p = xdr_encode_nfstime4(p, &statx->fa_time_backup);
+ if (bmval[1] & FATTR4_WORD1_TIME_CREATE)
+ p = xdr_encode_nfstime4(p, &statx->fa_btime);
if (bmval[1] & FATTR4_WORD1_TIME_MODIFY_SET) {
if (iap->ia_valid & ATTR_MTIME_SET) {
*p++ = cpu_to_be32(NFS4_SET_TO_CLIENT_TIME);
@@ -1248,7 +1293,7 @@ static void encode_create(struct xdr_stream *xdr, const struct nfs4_create_arg *
encode_string(xdr, create->name->len, create->name->name);
encode_attrs(xdr, create->attrs, create->label, &create->umask,
- create->server, create->server->attr_bitmask);
+ NULL, create->server, create->server->attr_bitmask);
}
static void encode_getattr(struct xdr_stream *xdr,
@@ -1434,12 +1479,12 @@ static inline void encode_createmode(struct xdr_stream *xdr, const struct nfs_op
case NFS4_CREATE_UNCHECKED:
*p = cpu_to_be32(NFS4_CREATE_UNCHECKED);
encode_attrs(xdr, arg->u.attrs, arg->label, &arg->umask,
- arg->server, arg->server->attr_bitmask);
+ NULL, arg->server, arg->server->attr_bitmask);
break;
case NFS4_CREATE_GUARDED:
*p = cpu_to_be32(NFS4_CREATE_GUARDED);
encode_attrs(xdr, arg->u.attrs, arg->label, &arg->umask,
- arg->server, arg->server->attr_bitmask);
+ NULL, arg->server, arg->server->attr_bitmask);
break;
case NFS4_CREATE_EXCLUSIVE:
*p = cpu_to_be32(NFS4_CREATE_EXCLUSIVE);
@@ -1449,7 +1494,7 @@ static inline void encode_createmode(struct xdr_stream *xdr, const struct nfs_op
*p = cpu_to_be32(NFS4_CREATE_EXCLUSIVE4_1);
encode_nfs4_verifier(xdr, &arg->u.verifier);
encode_attrs(xdr, arg->u.attrs, arg->label, &arg->umask,
- arg->server, arg->server->exclcreat_bitmask);
+ NULL, arg->server, arg->server->exclcreat_bitmask);
}
}
@@ -1712,8 +1757,8 @@ static void encode_setattr(struct xdr_stream *xdr, const struct nfs_setattrargs
{
encode_op_hdr(xdr, OP_SETATTR, decode_setattr_maxsz, hdr);
encode_nfs4_stateid(xdr, &arg->stateid);
- encode_attrs(xdr, arg->iap, arg->label, NULL, server,
- server->attr_bitmask);
+ encode_attrs(xdr, arg->iap, arg->label, NULL, arg->statx, server,
+ server->attr_bitmask);
}
static void encode_setclientid(struct xdr_stream *xdr, const struct nfs4_setclientid *setclientid, struct compound_hdr *hdr)
@@ -9,6 +9,11 @@
#define CREATE_TRACE_POINTS
#include "nfstrace.h"
+EXPORT_TRACEPOINT_SYMBOL_GPL(nfs_ioctl_file_statx_get_enter);
+EXPORT_TRACEPOINT_SYMBOL_GPL(nfs_ioctl_file_statx_get_exit);
+EXPORT_TRACEPOINT_SYMBOL_GPL(nfs_ioctl_file_statx_set_enter);
+EXPORT_TRACEPOINT_SYMBOL_GPL(nfs_ioctl_file_statx_set_exit);
+
EXPORT_TRACEPOINT_SYMBOL_GPL(nfs_fsync_enter);
EXPORT_TRACEPOINT_SYMBOL_GPL(nfs_fsync_exit);
EXPORT_TRACEPOINT_SYMBOL_GPL(nfs_xdr_status);
@@ -166,6 +166,11 @@ DEFINE_NFS_INODE_EVENT_DONE(nfs_fsync_exit);
DEFINE_NFS_INODE_EVENT(nfs_access_enter);
DEFINE_NFS_INODE_EVENT_DONE(nfs_set_cache_invalid);
+DEFINE_NFS_INODE_EVENT(nfs_ioctl_file_statx_get_enter);
+DEFINE_NFS_INODE_EVENT_DONE(nfs_ioctl_file_statx_get_exit);
+DEFINE_NFS_INODE_EVENT(nfs_ioctl_file_statx_set_enter);
+DEFINE_NFS_INODE_EVENT_DONE(nfs_ioctl_file_statx_set_exit);
+
TRACE_EVENT(nfs_access_exit,
TP_PROTO(
const struct inode *inode,
@@ -717,6 +717,7 @@ const struct nfs_rpc_ops nfs_v2_clientops = {
.dir_inode_ops = &nfs_dir_inode_operations,
.file_inode_ops = &nfs_file_inode_operations,
.file_ops = &nfs_file_operations,
+ .dir_ops = &nfs_dir_operations,
.getroot = nfs_proc_get_root,
.submount = nfs_submount,
.try_get_tree = nfs_try_get_tree,
@@ -503,6 +503,7 @@ extern __be32 root_nfs_parse_addr(char *name); /*__init*/
extern const struct file_operations nfs_file_operations;
#if IS_ENABLED(CONFIG_NFS_V4)
extern const struct file_operations nfs4_file_operations;
+extern const struct file_operations nfs4_dir_operations;
#endif /* CONFIG_NFS_V4 */
extern const struct address_space_operations nfs_file_aops;
extern const struct address_space_operations nfs_dir_aops;
@@ -812,6 +812,7 @@ struct nfs_createargs {
struct iattr * sattr;
};
+struct nfs4_statx;
struct nfs_setattrargs {
struct nfs4_sequence_args seq_args;
struct nfs_fh * fh;
@@ -820,6 +821,7 @@ struct nfs_setattrargs {
const struct nfs_server * server; /* Needed for name mapping */
const u32 * bitmask;
const struct nfs4_label *label;
+ const struct nfs4_statx *statx;
};
struct nfs_setaclargs {
@@ -1744,6 +1746,7 @@ struct nfs_rpc_ops {
const struct inode_operations *dir_inode_ops;
const struct inode_operations *file_inode_ops;
const struct file_operations *file_ops;
+ const struct file_operations *dir_ops;
const struct nlmclnt_operations *nlmclnt_ops;
int (*getroot) (struct nfs_server *, struct nfs_fh *,
@@ -9,6 +9,8 @@
#define _UAPI_LINUX_NFS_H
#include <linux/types.h>
+#include <asm/byteorder.h>
+#include <linux/time.h>
#define NFS_PROGRAM 100003
#define NFS_PORT 2049
@@ -35,6 +37,94 @@
#define NFS_PIPE_DIRNAME "nfs"
+/* NFS ioctls */
+#define NFS_IOC_FILE_STATX_GET _IOR('N', 2, struct nfs_ioctl_nfs4_statx)
+#define NFS_IOC_FILE_STATX_SET _IOW('N', 3, struct nfs_ioctl_nfs4_statx)
+
+/* Options for struct nfs_ioctl_nfs4_statx */
+#define NFS_FA_OPTIONS_SYNC_AS_STAT 0x0000
+#define NFS_FA_OPTIONS_FORCE_SYNC 0x2000 /* See statx */
+#define NFS_FA_OPTIONS_DONT_SYNC 0x4000 /* See statx */
+
+#define NFS_FA_VALID_TIME_CREATE 0x00001UL
+#define NFS_FA_VALID_TIME_BACKUP 0x00002UL
+#define NFS_FA_VALID_ARCHIVE 0x00004UL
+#define NFS_FA_VALID_HIDDEN 0x00008UL
+#define NFS_FA_VALID_SYSTEM 0x00010UL
+#define NFS_FA_VALID_OWNER 0x00020UL
+#define NFS_FA_VALID_OWNER_GROUP 0x00040UL
+#define NFS_FA_VALID_ATIME 0x00080UL
+#define NFS_FA_VALID_MTIME 0x00100UL
+#define NFS_FA_VALID_CTIME 0x00200UL
+#define NFS_FA_VALID_OFFLINE 0x00400UL
+#define NFS_FA_VALID_MODE 0x00800UL
+#define NFS_FA_VALID_NLINK 0x01000UL
+#define NFS_FA_VALID_BLKSIZE 0x02000UL
+#define NFS_FA_VALID_INO 0x04000UL
+#define NFS_FA_VALID_DEV 0x08000UL
+#define NFS_FA_VALID_RDEV 0x10000UL
+#define NFS_FA_VALID_SIZE 0x20000UL
+#define NFS_FA_VALID_BLOCKS 0x40000UL
+
+#define NFS_FA_VALID_ALL_ATTR_0 ( NFS_FA_VALID_TIME_CREATE | \
+ NFS_FA_VALID_TIME_BACKUP | \
+ NFS_FA_VALID_ARCHIVE | \
+ NFS_FA_VALID_HIDDEN | \
+ NFS_FA_VALID_SYSTEM | \
+ NFS_FA_VALID_OWNER | \
+ NFS_FA_VALID_OWNER_GROUP | \
+ NFS_FA_VALID_ATIME | \
+ NFS_FA_VALID_MTIME | \
+ NFS_FA_VALID_CTIME | \
+ NFS_FA_VALID_OFFLINE | \
+ NFS_FA_VALID_MODE | \
+ NFS_FA_VALID_NLINK | \
+ NFS_FA_VALID_BLKSIZE | \
+ NFS_FA_VALID_INO | \
+ NFS_FA_VALID_DEV | \
+ NFS_FA_VALID_RDEV | \
+ NFS_FA_VALID_SIZE | \
+ NFS_FA_VALID_BLOCKS)
+
+#define NFS_FA_FLAG_ARCHIVE (1UL << 0)
+#define NFS_FA_FLAG_HIDDEN (1UL << 1)
+#define NFS_FA_FLAG_SYSTEM (1UL << 2)
+#define NFS_FA_FLAG_OFFLINE (1UL << 3)
+
+struct nfs_ioctl_timespec {
+ __s64 tv_sec;
+ __s64 tv_nsec;
+};
+
+struct nfs_ioctl_nfs4_statx {
+ __s32 real_fd; /* real FD to use,
+ -1 means use current file */
+ __u32 fa_options;
+
+ __u64 fa_request[2]; /* Attributes to retrieve */
+ __u64 fa_valid[2]; /* Attributes set */
+
+ struct nfs_ioctl_timespec fa_time_backup;/* Backup time */
+ struct nfs_ioctl_timespec fa_btime; /* Birth time */
+ __u64 fa_flags; /* Flag attributes */
+ /* Ordinary attributes follow */
+ struct nfs_ioctl_timespec fa_atime; /* Access time */
+ struct nfs_ioctl_timespec fa_mtime; /* Modify time */
+ struct nfs_ioctl_timespec fa_ctime; /* Change time */
+ __u32 fa_owner_uid; /* Owner User ID */
+ __u32 fa_group_gid; /* Primary Group ID */
+ __u32 fa_mode; /* Mode */
+ __u32 fa_nlink;
+ __u32 fa_blksize;
+ __u32 fa_spare; /* Alignment */
+ __u64 fa_ino;
+ __u32 fa_dev;
+ __u32 fa_rdev;
+ __s64 fa_size;
+ __s64 fa_blocks;
+ __u64 fa_padding[4];
+};
+
/*
* NFS stats. The good thing with these values is that NFSv3 errors are
* a superset of NFSv2 errors (with the exception of NFSERR_WFLUSH which