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-rw-r--r--fs/bio.c2
-rw-r--r--fs/btrfs/Kconfig3
-rw-r--r--fs/btrfs/ctree.h5
-rw-r--r--fs/btrfs/ioctl.c17
-rw-r--r--fs/cifs/cifsencrypt.c40
-rw-r--r--fs/cifs/cifsglob.h8
-rw-r--r--fs/cifs/cifspdu.h8
-rw-r--r--fs/cifs/cifssmb.c8
-rw-r--r--fs/cifs/dir.c2
-rw-r--r--fs/cifs/file.c22
-rw-r--r--fs/cifs/inode.c23
-rw-r--r--fs/cifs/ioctl.c111
-rw-r--r--fs/cifs/netmisc.c2
-rw-r--r--fs/cifs/readdir.c40
-rw-r--r--fs/cifs/smb1ops.c21
-rw-r--r--fs/cifs/smb2inode.c16
-rw-r--r--fs/cifs/smb2maperror.c2
-rw-r--r--fs/cifs/smb2ops.c82
-rw-r--r--fs/cifs/smb2pdu.c12
-rw-r--r--fs/cifs/smb2pdu.h33
-rw-r--r--fs/cifs/smb2proto.h2
-rw-r--r--fs/dlm/netlink.c10
-rw-r--r--fs/nfs/Kconfig6
-rw-r--r--fs/nfs/nfs4state.c7
-rw-r--r--fs/nfs/super.c2
-rw-r--r--fs/nfsd/Kconfig2
-rw-r--r--fs/nfsd/export.c24
-rw-r--r--fs/nfsd/nfs4state.c26
-rw-r--r--fs/nfsd/nfs4xdr.c132
-rw-r--r--fs/nfsd/nfsfh.c8
-rw-r--r--fs/quota/netlink.c16
-rw-r--r--fs/seq_file.c3
32 files changed, 519 insertions, 176 deletions
diff --git a/fs/bio.c b/fs/bio.c
index 2bdb4e25ee77..33d79a4eb92d 100644
--- a/fs/bio.c
+++ b/fs/bio.c
@@ -601,7 +601,7 @@ EXPORT_SYMBOL(bio_get_nr_vecs);
static int __bio_add_page(struct request_queue *q, struct bio *bio, struct page
*page, unsigned int len, unsigned int offset,
- unsigned short max_sectors)
+ unsigned int max_sectors)
{
int retried_segments = 0;
struct bio_vec *bvec;
diff --git a/fs/btrfs/Kconfig b/fs/btrfs/Kconfig
index 398cbd517be2..f9d5094e1029 100644
--- a/fs/btrfs/Kconfig
+++ b/fs/btrfs/Kconfig
@@ -59,7 +59,8 @@ config BTRFS_FS_RUN_SANITY_TESTS
help
This will run some basic sanity tests on the free space cache
code to make sure it is acting as it should. These are mostly
- regression tests and are only really interesting to btrfs devlopers.
+ regression tests and are only really interesting to btrfs
+ developers.
If unsure, say N.
diff --git a/fs/btrfs/ctree.h b/fs/btrfs/ctree.h
index aea4433081dc..f9aeb2759a64 100644
--- a/fs/btrfs/ctree.h
+++ b/fs/btrfs/ctree.h
@@ -3111,11 +3111,6 @@ static inline u32 btrfs_level_size(struct btrfs_root *root, int level)
((unsigned long)(btrfs_leaf_data(leaf) + \
btrfs_item_offset_nr(leaf, slot)))
-static inline struct dentry *fdentry(struct file *file)
-{
- return file->f_path.dentry;
-}
-
static inline bool btrfs_mixed_space_info(struct btrfs_space_info *space_info)
{
return ((space_info->flags & BTRFS_BLOCK_GROUP_METADATA) &&
diff --git a/fs/btrfs/ioctl.c b/fs/btrfs/ioctl.c
index 1d04b5559e61..a111622598b0 100644
--- a/fs/btrfs/ioctl.c
+++ b/fs/btrfs/ioctl.c
@@ -320,7 +320,7 @@ static int btrfs_ioctl_getversion(struct file *file, int __user *arg)
static noinline int btrfs_ioctl_fitrim(struct file *file, void __user *arg)
{
- struct btrfs_fs_info *fs_info = btrfs_sb(fdentry(file)->d_sb);
+ struct btrfs_fs_info *fs_info = btrfs_sb(file_inode(file)->i_sb);
struct btrfs_device *device;
struct request_queue *q;
struct fstrim_range range;
@@ -368,8 +368,13 @@ static noinline int btrfs_ioctl_fitrim(struct file *file, void __user *arg)
int btrfs_is_empty_uuid(u8 *uuid)
{
- BUILD_BUG_ON(BTRFS_UUID_SIZE > PAGE_SIZE);
- return !memcmp(uuid, empty_zero_page, BTRFS_UUID_SIZE);
+ int i;
+
+ for (i = 0; i < BTRFS_UUID_SIZE; i++) {
+ if (uuid[i])
+ return 0;
+ }
+ return 1;
}
static noinline int create_subvol(struct inode *dir,
@@ -2084,7 +2089,7 @@ static noinline int btrfs_ioctl_ino_lookup(struct file *file,
static noinline int btrfs_ioctl_snap_destroy(struct file *file,
void __user *arg)
{
- struct dentry *parent = fdentry(file);
+ struct dentry *parent = file->f_path.dentry;
struct dentry *dentry;
struct inode *dir = parent->d_inode;
struct inode *inode;
@@ -3100,7 +3105,7 @@ out:
static noinline long btrfs_ioctl_clone(struct file *file, unsigned long srcfd,
u64 off, u64 olen, u64 destoff)
{
- struct inode *inode = fdentry(file)->d_inode;
+ struct inode *inode = file_inode(file);
struct btrfs_root *root = BTRFS_I(inode)->root;
struct fd src_file;
struct inode *src;
@@ -4299,7 +4304,7 @@ static long btrfs_ioctl_quota_rescan_status(struct file *file, void __user *arg)
static long btrfs_ioctl_quota_rescan_wait(struct file *file, void __user *arg)
{
- struct btrfs_root *root = BTRFS_I(fdentry(file)->d_inode)->root;
+ struct btrfs_root *root = BTRFS_I(file_inode(file))->root;
if (!capable(CAP_SYS_ADMIN))
return -EPERM;
diff --git a/fs/cifs/cifsencrypt.c b/fs/cifs/cifsencrypt.c
index fc6f4f3a1a9d..4934347321d3 100644
--- a/fs/cifs/cifsencrypt.c
+++ b/fs/cifs/cifsencrypt.c
@@ -548,7 +548,13 @@ static int
CalcNTLMv2_response(const struct cifs_ses *ses, char *ntlmv2_hash)
{
int rc;
- unsigned int offset = CIFS_SESS_KEY_SIZE + 8;
+ struct ntlmv2_resp *ntlmv2 = (struct ntlmv2_resp *)
+ (ses->auth_key.response + CIFS_SESS_KEY_SIZE);
+ unsigned int hash_len;
+
+ /* The MD5 hash starts at challenge_key.key */
+ hash_len = ses->auth_key.len - (CIFS_SESS_KEY_SIZE +
+ offsetof(struct ntlmv2_resp, challenge.key[0]));
if (!ses->server->secmech.sdeschmacmd5) {
cifs_dbg(VFS, "%s: can't generate ntlmv2 hash\n", __func__);
@@ -556,7 +562,7 @@ CalcNTLMv2_response(const struct cifs_ses *ses, char *ntlmv2_hash)
}
rc = crypto_shash_setkey(ses->server->secmech.hmacmd5,
- ntlmv2_hash, CIFS_HMAC_MD5_HASH_SIZE);
+ ntlmv2_hash, CIFS_HMAC_MD5_HASH_SIZE);
if (rc) {
cifs_dbg(VFS, "%s: Could not set NTLMV2 Hash as a key\n",
__func__);
@@ -570,20 +576,21 @@ CalcNTLMv2_response(const struct cifs_ses *ses, char *ntlmv2_hash)
}
if (ses->server->negflavor == CIFS_NEGFLAVOR_EXTENDED)
- memcpy(ses->auth_key.response + offset,
- ses->ntlmssp->cryptkey, CIFS_SERVER_CHALLENGE_SIZE);
+ memcpy(ntlmv2->challenge.key,
+ ses->ntlmssp->cryptkey, CIFS_SERVER_CHALLENGE_SIZE);
else
- memcpy(ses->auth_key.response + offset,
- ses->server->cryptkey, CIFS_SERVER_CHALLENGE_SIZE);
+ memcpy(ntlmv2->challenge.key,
+ ses->server->cryptkey, CIFS_SERVER_CHALLENGE_SIZE);
rc = crypto_shash_update(&ses->server->secmech.sdeschmacmd5->shash,
- ses->auth_key.response + offset, ses->auth_key.len - offset);
+ ntlmv2->challenge.key, hash_len);
if (rc) {
cifs_dbg(VFS, "%s: Could not update with response\n", __func__);
return rc;
}
+ /* Note that the MD5 digest over writes anon.challenge_key.key */
rc = crypto_shash_final(&ses->server->secmech.sdeschmacmd5->shash,
- ses->auth_key.response + CIFS_SESS_KEY_SIZE);
+ ntlmv2->ntlmv2_hash);
if (rc)
cifs_dbg(VFS, "%s: Could not generate md5 hash\n", __func__);
@@ -627,7 +634,7 @@ setup_ntlmv2_rsp(struct cifs_ses *ses, const struct nls_table *nls_cp)
int rc;
int baselen;
unsigned int tilen;
- struct ntlmv2_resp *buf;
+ struct ntlmv2_resp *ntlmv2;
char ntlmv2_hash[16];
unsigned char *tiblob = NULL; /* target info blob */
@@ -660,13 +667,14 @@ setup_ntlmv2_rsp(struct cifs_ses *ses, const struct nls_table *nls_cp)
}
ses->auth_key.len += baselen;
- buf = (struct ntlmv2_resp *)
+ ntlmv2 = (struct ntlmv2_resp *)
(ses->auth_key.response + CIFS_SESS_KEY_SIZE);
- buf->blob_signature = cpu_to_le32(0x00000101);
- buf->reserved = 0;
- buf->time = cpu_to_le64(cifs_UnixTimeToNT(CURRENT_TIME));
- get_random_bytes(&buf->client_chal, sizeof(buf->client_chal));
- buf->reserved2 = 0;
+ ntlmv2->blob_signature = cpu_to_le32(0x00000101);
+ ntlmv2->reserved = 0;
+ /* Must be within 5 minutes of the server */
+ ntlmv2->time = cpu_to_le64(cifs_UnixTimeToNT(CURRENT_TIME));
+ get_random_bytes(&ntlmv2->client_chal, sizeof(ntlmv2->client_chal));
+ ntlmv2->reserved2 = 0;
memcpy(ses->auth_key.response + baselen, tiblob, tilen);
@@ -706,7 +714,7 @@ setup_ntlmv2_rsp(struct cifs_ses *ses, const struct nls_table *nls_cp)
}
rc = crypto_shash_update(&ses->server->secmech.sdeschmacmd5->shash,
- ses->auth_key.response + CIFS_SESS_KEY_SIZE,
+ ntlmv2->ntlmv2_hash,
CIFS_HMAC_MD5_HASH_SIZE);
if (rc) {
cifs_dbg(VFS, "%s: Could not update with response\n", __func__);
diff --git a/fs/cifs/cifsglob.h b/fs/cifs/cifsglob.h
index 26b1c1dc93f6..d9ea7ada1378 100644
--- a/fs/cifs/cifsglob.h
+++ b/fs/cifs/cifsglob.h
@@ -261,7 +261,7 @@ struct smb_version_operations {
/* query path data from the server */
int (*query_path_info)(const unsigned int, struct cifs_tcon *,
struct cifs_sb_info *, const char *,
- FILE_ALL_INFO *, bool *);
+ FILE_ALL_INFO *, bool *, bool *);
/* query file data from the server */
int (*query_file_info)(const unsigned int, struct cifs_tcon *,
struct cifs_fid *, FILE_ALL_INFO *);
@@ -381,6 +381,9 @@ struct smb_version_operations {
char * (*create_lease_buf)(u8 *, u8);
/* parse lease context buffer and return oplock/epoch info */
__u8 (*parse_lease_buf)(void *, unsigned int *);
+ int (*clone_range)(const unsigned int, struct cifsFileInfo *src_file,
+ struct cifsFileInfo *target_file, u64 src_off, u64 len,
+ u64 dest_off);
};
struct smb_version_values {
@@ -855,6 +858,9 @@ struct cifs_tcon {
__le64 vol_create_time;
__u32 ss_flags; /* sector size flags */
__u32 perf_sector_size; /* best sector size for perf */
+ __u32 max_chunks;
+ __u32 max_bytes_chunk;
+ __u32 max_bytes_copy;
#endif /* CONFIG_CIFS_SMB2 */
#ifdef CONFIG_CIFS_FSCACHE
u64 resource_id; /* server resource id */
diff --git a/fs/cifs/cifspdu.h b/fs/cifs/cifspdu.h
index 9e5ee34de986..33df36ef9d52 100644
--- a/fs/cifs/cifspdu.h
+++ b/fs/cifs/cifspdu.h
@@ -697,7 +697,13 @@ struct ntlmssp2_name {
} __attribute__((packed));
struct ntlmv2_resp {
- char ntlmv2_hash[CIFS_ENCPWD_SIZE];
+ union {
+ char ntlmv2_hash[CIFS_ENCPWD_SIZE];
+ struct {
+ __u8 reserved[8];
+ __u8 key[CIFS_SERVER_CHALLENGE_SIZE];
+ } __attribute__((packed)) challenge;
+ } __attribute__((packed));
__le32 blob_signature;
__u32 reserved;
__le64 time;
diff --git a/fs/cifs/cifssmb.c b/fs/cifs/cifssmb.c
index 93b29474714a..124aa0230c1b 100644
--- a/fs/cifs/cifssmb.c
+++ b/fs/cifs/cifssmb.c
@@ -3369,11 +3369,13 @@ static __u16 ACL_to_cifs_posix(char *parm_data, const char *pACL,
return 0;
}
cifs_acl->version = cpu_to_le16(1);
- if (acl_type == ACL_TYPE_ACCESS)
+ if (acl_type == ACL_TYPE_ACCESS) {
cifs_acl->access_entry_count = cpu_to_le16(count);
- else if (acl_type == ACL_TYPE_DEFAULT)
+ cifs_acl->default_entry_count = __constant_cpu_to_le16(0xFFFF);
+ } else if (acl_type == ACL_TYPE_DEFAULT) {
cifs_acl->default_entry_count = cpu_to_le16(count);
- else {
+ cifs_acl->access_entry_count = __constant_cpu_to_le16(0xFFFF);
+ } else {
cifs_dbg(FYI, "unknown ACL type %d\n", acl_type);
return 0;
}
diff --git a/fs/cifs/dir.c b/fs/cifs/dir.c
index 5384c2a640ca..11ff5f116b20 100644
--- a/fs/cifs/dir.c
+++ b/fs/cifs/dir.c
@@ -756,7 +756,7 @@ cifs_lookup(struct inode *parent_dir_inode, struct dentry *direntry,
/* if it was once a directory (but how can we tell?) we could do
shrink_dcache_parent(direntry); */
} else if (rc != -EACCES) {
- cifs_dbg(VFS, "Unexpected lookup error %d\n", rc);
+ cifs_dbg(FYI, "Unexpected lookup error %d\n", rc);
/* We special case check for Access Denied - since that
is a common return code */
}
diff --git a/fs/cifs/file.c b/fs/cifs/file.c
index 7ddddf2e2504..5a5a87240fe2 100644
--- a/fs/cifs/file.c
+++ b/fs/cifs/file.c
@@ -3663,6 +3663,27 @@ void cifs_oplock_break(struct work_struct *work)
}
}
+/*
+ * The presence of cifs_direct_io() in the address space ops vector
+ * allowes open() O_DIRECT flags which would have failed otherwise.
+ *
+ * In the non-cached mode (mount with cache=none), we shunt off direct read and write requests
+ * so this method should never be called.
+ *
+ * Direct IO is not yet supported in the cached mode.
+ */
+static ssize_t
+cifs_direct_io(int rw, struct kiocb *iocb, const struct iovec *iov,
+ loff_t pos, unsigned long nr_segs)
+{
+ /*
+ * FIXME
+ * Eventually need to support direct IO for non forcedirectio mounts
+ */
+ return -EINVAL;
+}
+
+
const struct address_space_operations cifs_addr_ops = {
.readpage = cifs_readpage,
.readpages = cifs_readpages,
@@ -3672,6 +3693,7 @@ const struct address_space_operations cifs_addr_ops = {
.write_end = cifs_write_end,
.set_page_dirty = __set_page_dirty_nobuffers,
.releasepage = cifs_release_page,
+ .direct_IO = cifs_direct_io,
.invalidatepage = cifs_invalidate_page,
.launder_page = cifs_launder_page,
};
diff --git a/fs/cifs/inode.c b/fs/cifs/inode.c
index 867b7cdc794a..36f9ebb93ceb 100644
--- a/fs/cifs/inode.c
+++ b/fs/cifs/inode.c
@@ -542,7 +542,8 @@ static int cifs_sfu_mode(struct cifs_fattr *fattr, const unsigned char *path,
/* Fill a cifs_fattr struct with info from FILE_ALL_INFO */
static void
cifs_all_info_to_fattr(struct cifs_fattr *fattr, FILE_ALL_INFO *info,
- struct cifs_sb_info *cifs_sb, bool adjust_tz)
+ struct cifs_sb_info *cifs_sb, bool adjust_tz,
+ bool symlink)
{
struct cifs_tcon *tcon = cifs_sb_master_tcon(cifs_sb);
@@ -569,7 +570,11 @@ cifs_all_info_to_fattr(struct cifs_fattr *fattr, FILE_ALL_INFO *info,
fattr->cf_createtime = le64_to_cpu(info->CreationTime);
fattr->cf_nlink = le32_to_cpu(info->NumberOfLinks);
- if (fattr->cf_cifsattrs & ATTR_DIRECTORY) {
+
+ if (symlink) {
+ fattr->cf_mode = S_IFLNK;
+ fattr->cf_dtype = DT_LNK;
+ } else if (fattr->cf_cifsattrs & ATTR_DIRECTORY) {
fattr->cf_mode = S_IFDIR | cifs_sb->mnt_dir_mode;
fattr->cf_dtype = DT_DIR;
/*
@@ -578,10 +583,6 @@ cifs_all_info_to_fattr(struct cifs_fattr *fattr, FILE_ALL_INFO *info,
*/
if (!tcon->unix_ext)
fattr->cf_flags |= CIFS_FATTR_UNKNOWN_NLINK;
- } else if (fattr->cf_cifsattrs & ATTR_REPARSE) {
- fattr->cf_mode = S_IFLNK;
- fattr->cf_dtype = DT_LNK;
- fattr->cf_nlink = le32_to_cpu(info->NumberOfLinks);
} else {
fattr->cf_mode = S_IFREG | cifs_sb->mnt_file_mode;
fattr->cf_dtype = DT_REG;
@@ -626,7 +627,8 @@ cifs_get_file_info(struct file *filp)
rc = server->ops->query_file_info(xid, tcon, &cfile->fid, &find_data);
switch (rc) {
case 0:
- cifs_all_info_to_fattr(&fattr, &find_data, cifs_sb, false);
+ cifs_all_info_to_fattr(&fattr, &find_data, cifs_sb, false,
+ false);
break;
case -EREMOTE:
cifs_create_dfs_fattr(&fattr, inode->i_sb);
@@ -673,6 +675,7 @@ cifs_get_inode_info(struct inode **inode, const char *full_path,
bool adjust_tz = false;
struct cifs_fattr fattr;
struct cifs_search_info *srchinf = NULL;
+ bool symlink = false;
tlink = cifs_sb_tlink(cifs_sb);
if (IS_ERR(tlink))
@@ -702,12 +705,12 @@ cifs_get_inode_info(struct inode **inode, const char *full_path,
}
data = (FILE_ALL_INFO *)buf;
rc = server->ops->query_path_info(xid, tcon, cifs_sb, full_path,
- data, &adjust_tz);
+ data, &adjust_tz, &symlink);
}
if (!rc) {
- cifs_all_info_to_fattr(&fattr, (FILE_ALL_INFO *)data, cifs_sb,
- adjust_tz);
+ cifs_all_info_to_fattr(&fattr, data, cifs_sb, adjust_tz,
+ symlink);
} else if (rc == -EREMOTE) {
cifs_create_dfs_fattr(&fattr, sb);
rc = 0;
diff --git a/fs/cifs/ioctl.c b/fs/cifs/ioctl.c
index ba54bf6ab116..409b45eefe70 100644
--- a/fs/cifs/ioctl.c
+++ b/fs/cifs/ioctl.c
@@ -22,12 +22,120 @@
*/
#include <linux/fs.h>
+#include <linux/file.h>
+#include <linux/mount.h>
+#include <linux/mm.h>
+#include <linux/pagemap.h>
+#include <linux/btrfs.h>
#include "cifspdu.h"
#include "cifsglob.h"
#include "cifsproto.h"
#include "cifs_debug.h"
#include "cifsfs.h"
+static long cifs_ioctl_clone(unsigned int xid, struct file *dst_file,
+ unsigned long srcfd, u64 off, u64 len, u64 destoff)
+{
+ int rc;
+ struct cifsFileInfo *smb_file_target = dst_file->private_data;
+ struct inode *target_inode = file_inode(dst_file);
+ struct cifs_tcon *target_tcon;
+ struct fd src_file;
+ struct cifsFileInfo *smb_file_src;
+ struct inode *src_inode;
+ struct cifs_tcon *src_tcon;
+
+ cifs_dbg(FYI, "ioctl clone range\n");
+ /* the destination must be opened for writing */
+ if (!(dst_file->f_mode & FMODE_WRITE)) {
+ cifs_dbg(FYI, "file target not open for write\n");
+ return -EINVAL;
+ }
+
+ /* check if target volume is readonly and take reference */
+ rc = mnt_want_write_file(dst_file);
+ if (rc) {
+ cifs_dbg(FYI, "mnt_want_write failed with rc %d\n", rc);
+ return rc;
+ }
+
+ src_file = fdget(srcfd);
+ if (!src_file.file) {
+ rc = -EBADF;
+ goto out_drop_write;
+ }
+
+ if ((!src_file.file->private_data) || (!dst_file->private_data)) {
+ rc = -EBADF;
+ cifs_dbg(VFS, "missing cifsFileInfo on copy range src file\n");
+ goto out_fput;
+ }
+
+ rc = -EXDEV;
+ smb_file_target = dst_file->private_data;
+ smb_file_src = src_file.file->private_data;
+ src_tcon = tlink_tcon(smb_file_src->tlink);
+ target_tcon = tlink_tcon(smb_file_target->tlink);
+
+ /* check if source and target are on same tree connection */
+ if (src_tcon != target_tcon) {
+ cifs_dbg(VFS, "file copy src and target on different volume\n");
+ goto out_fput;
+ }
+
+ src_inode = src_file.file->f_dentry->d_inode;
+
+ /*
+ * Note: cifs case is easier than btrfs since server responsible for
+ * checks for proper open modes and file type and if it wants
+ * server could even support copy of range where source = target
+ */
+
+ /* so we do not deadlock racing two ioctls on same files */
+ if (target_inode < src_inode) {
+ mutex_lock_nested(&target_inode->i_mutex, I_MUTEX_PARENT);
+ mutex_lock_nested(&src_inode->i_mutex, I_MUTEX_CHILD);
+ } else {
+ mutex_lock_nested(&src_inode->i_mutex, I_MUTEX_PARENT);
+ mutex_lock_nested(&target_inode->i_mutex, I_MUTEX_CHILD);
+ }
+
+ /* determine range to clone */
+ rc = -EINVAL;
+ if (off + len > src_inode->i_size || off + len < off)
+ goto out_unlock;
+ if (len == 0)
+ len = src_inode->i_size - off;
+
+ cifs_dbg(FYI, "about to flush pages\n");
+ /* should we flush first and last page first */
+ truncate_inode_pages_range(&target_inode->i_data, destoff,
+ PAGE_CACHE_ALIGN(destoff + len)-1);
+
+ if (target_tcon->ses->server->ops->clone_range)
+ rc = target_tcon->ses->server->ops->clone_range(xid,
+ smb_file_src, smb_file_target, off, len, destoff);
+
+ /* force revalidate of size and timestamps of target file now
+ that target is updated on the server */
+ CIFS_I(target_inode)->time = 0;
+out_unlock:
+ /* although unlocking in the reverse order from locking is not
+ strictly necessary here it is a little cleaner to be consistent */
+ if (target_inode < src_inode) {
+ mutex_unlock(&src_inode->i_mutex);
+ mutex_unlock(&target_inode->i_mutex);
+ } else {
+ mutex_unlock(&target_inode->i_mutex);
+ mutex_unlock(&src_inode->i_mutex);
+ }
+out_fput:
+ fdput(src_file);
+out_drop_write:
+ mnt_drop_write_file(dst_file);
+ return rc;
+}
+
long cifs_ioctl(struct file *filep, unsigned int command, unsigned long arg)
{
struct inode *inode = file_inode(filep);
@@ -105,6 +213,9 @@ long cifs_ioctl(struct file *filep, unsigned int command, unsigned long arg)
cifs_dbg(FYI, "set compress flag rc %d\n", rc);
}
break;
+ case BTRFS_IOC_CLONE:
+ rc = cifs_ioctl_clone(xid, filep, arg, 0, 0, 0);
+ break;
default:
cifs_dbg(FYI, "unsupported ioctl\n");
break;
diff --git a/fs/cifs/netmisc.c b/fs/cifs/netmisc.c
index 651a5279607b..049884552e76 100644
--- a/fs/cifs/netmisc.c
+++ b/fs/cifs/netmisc.c
@@ -51,7 +51,7 @@ static const struct smb_to_posix_error mapping_table_ERRDOS[] = {
{ERRnoaccess, -EACCES},
{ERRbadfid, -EBADF},
{ERRbadmcb, -EIO},
- {ERRnomem, -ENOMEM},
+ {ERRnomem, -EREMOTEIO},
{ERRbadmem, -EFAULT},
{ERRbadenv, -EFAULT},
{ERRbadformat, -EINVAL},
diff --git a/fs/cifs/readdir.c b/fs/cifs/readdir.c
index 53a75f3d0179..5940ecabbe6a 100644
--- a/fs/cifs/readdir.c
+++ b/fs/cifs/readdir.c
@@ -134,22 +134,6 @@ out:
dput(dentry);
}
-/*
- * Is it possible that this directory might turn out to be a DFS referral
- * once we go to try and use it?
- */
-static bool
-cifs_dfs_is_possible(struct cifs_sb_info *cifs_sb)
-{
-#ifdef CONFIG_CIFS_DFS_UPCALL
- struct cifs_tcon *tcon = cifs_sb_master_tcon(cifs_sb);
-
- if (tcon->Flags & SMB_SHARE_IS_IN_DFS)
- return true;
-#endif
- return false;
-}
-
static void
cifs_fill_common_info(struct cifs_fattr *fattr, struct cifs_sb_info *cifs_sb)
{
@@ -159,27 +143,19 @@ cifs_fill_common_info(struct cifs_fattr *fattr, struct cifs_sb_info *cifs_sb)
if (fattr->cf_cifsattrs & ATTR_DIRECTORY) {
fattr->cf_mode = S_IFDIR | cifs_sb->mnt_dir_mode;
fattr->cf_dtype = DT_DIR;
- /*
- * Windows CIFS servers generally make DFS referrals look
- * like directories in FIND_* responses with the reparse
- * attribute flag also set (since DFS junctions are
- * reparse points). We must revalidate at least these
- * directory inodes before trying to use them (if
- * they are DFS we will get PATH_NOT_COVERED back
- * when queried directly and can then try to connect
- * to the DFS target)
- */
- if (cifs_dfs_is_possible(cifs_sb) &&
- (fattr->cf_cifsattrs & ATTR_REPARSE))
- fattr->cf_flags |= CIFS_FATTR_NEED_REVAL;
- } else if (fattr->cf_cifsattrs & ATTR_REPARSE) {
- fattr->cf_mode = S_IFLNK;
- fattr->cf_dtype = DT_LNK;
} else {
fattr->cf_mode = S_IFREG | cifs_sb->mnt_file_mode;
fattr->cf_dtype = DT_REG;
}
+ /*
+ * We need to revalidate it further to make a decision about whether it
+ * is a symbolic link, DFS referral or a reparse point with a direct
+ * access like junctions, deduplicated files, NFS symlinks.
+ */
+ if (fattr->cf_cifsattrs & ATTR_REPARSE)
+ fattr->cf_flags |= CIFS_FATTR_NEED_REVAL;
+
/* non-unix readdir doesn't provide nlink */
fattr->cf_flags |= CIFS_FATTR_UNKNOWN_NLINK;
diff --git a/fs/cifs/smb1ops.c b/fs/cifs/smb1ops.c
index 384cffe42850..5f5ba0dc2ee1 100644
--- a/fs/cifs/smb1ops.c
+++ b/fs/cifs/smb1ops.c
@@ -534,10 +534,12 @@ cifs_is_path_accessible(const unsigned int xid, struct cifs_tcon *tcon,
static int
cifs_query_path_info(const unsigned int xid, struct cifs_tcon *tcon,
struct cifs_sb_info *cifs_sb, const char *full_path,
- FILE_ALL_INFO *data, bool *adjustTZ)
+ FILE_ALL_INFO *data, bool *adjustTZ, bool *symlink)
{
int rc;
+ *symlink = false;
+
/* could do find first instead but this returns more info */
rc = CIFSSMBQPathInfo(xid, tcon, full_path, data, 0 /* not legacy */,
cifs_sb->local_nls, cifs_sb->mnt_cifs_flags &
@@ -554,6 +556,23 @@ cifs_query_path_info(const unsigned int xid, struct cifs_tcon *tcon,
CIFS_MOUNT_MAP_SPECIAL_CHR);
*adjustTZ = true;
}
+
+ if (!rc && (le32_to_cpu(data->Attributes) & ATTR_REPARSE)) {
+ int tmprc;
+ int oplock = 0;
+ __u16 netfid;
+
+ /* Need to check if this is a symbolic link or not */
+ tmprc = CIFSSMBOpen(xid, tcon, full_path, FILE_OPEN,
+ FILE_READ_ATTRIBUTES, 0, &netfid, &oplock,
+ NULL, cifs_sb->local_nls,
+ cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MAP_SPECIAL_CHR);
+ if (tmprc == -EOPNOTSUPP)
+ *symlink = true;
+ else
+ CIFSSMBClose(xid, tcon, netfid);
+ }
+
return rc;
}
diff --git a/fs/cifs/smb2inode.c b/fs/cifs/smb2inode.c
index 78ff88c467b9..84c012a6aba0 100644
--- a/fs/cifs/smb2inode.c
+++ b/fs/cifs/smb2inode.c
@@ -123,12 +123,13 @@ move_smb2_info_to_cifs(FILE_ALL_INFO *dst, struct smb2_file_all_info *src)
int
smb2_query_path_info(const unsigned int xid, struct cifs_tcon *tcon,
struct cifs_sb_info *cifs_sb, const char *full_path,
- FILE_ALL_INFO *data, bool *adjust_tz)
+ FILE_ALL_INFO *data, bool *adjust_tz, bool *symlink)
{
int rc;
struct smb2_file_all_info *smb2_data;
*adjust_tz = false;
+ *symlink = false;
smb2_data = kzalloc(sizeof(struct smb2_file_all_info) + MAX_NAME * 2,
GFP_KERNEL);
@@ -136,9 +137,16 @@ smb2_query_path_info(const unsigned int xid, struct cifs_tcon *tcon,
return -ENOMEM;
rc = smb2_open_op_close(xid, tcon, cifs_sb, full_path,
- FILE_READ_ATTRIBUTES, FILE_OPEN,
- OPEN_REPARSE_POINT, smb2_data,
- SMB2_OP_QUERY_INFO);
+ FILE_READ_ATTRIBUTES, FILE_OPEN, 0,
+ smb2_data, SMB2_OP_QUERY_INFO);
+ if (rc == -EOPNOTSUPP) {
+ *symlink = true;
+ /* Failed on a symbolic link - query a reparse point info */
+ rc = smb2_open_op_close(xid, tcon, cifs_sb, full_path,
+ FILE_READ_ATTRIBUTES, FILE_OPEN,
+ OPEN_REPARSE_POINT, smb2_data,
+ SMB2_OP_QUERY_INFO);
+ }
if (rc)
goto out;
diff --git a/fs/cifs/smb2maperror.c b/fs/cifs/smb2maperror.c
index 7c2f45c06fc2..94bd4fbb13d3 100644
--- a/fs/cifs/smb2maperror.c
+++ b/fs/cifs/smb2maperror.c
@@ -306,7 +306,7 @@ static const struct status_to_posix_error smb2_error_map_table[] = {
{STATUS_NONEXISTENT_SECTOR, -EIO, "STATUS_NONEXISTENT_SECTOR"},
{STATUS_MORE_PROCESSING_REQUIRED, -EIO,
"STATUS_MORE_PROCESSING_REQUIRED"},
- {STATUS_NO_MEMORY, -ENOMEM, "STATUS_NO_MEMORY"},
+ {STATUS_NO_MEMORY, -EREMOTEIO, "STATUS_NO_MEMORY"},
{STATUS_CONFLICTING_ADDRESSES, -EADDRINUSE,
"STATUS_CONFLICTING_ADDRESSES"},
{STATUS_NOT_MAPPED_VIEW, -EIO, "STATUS_NOT_MAPPED_VIEW"},
diff --git a/fs/cifs/smb2ops.c b/fs/cifs/smb2ops.c
index c571be8cb76e..11dde4b24f8a 100644
--- a/fs/cifs/smb2ops.c
+++ b/fs/cifs/smb2ops.c
@@ -494,6 +494,85 @@ smb2_close_file(const unsigned int xid, struct cifs_tcon *tcon,
}
static int
+SMB2_request_res_key(const unsigned int xid, struct cifs_tcon *tcon,
+ u64 persistent_fid, u64 volatile_fid,
+ struct copychunk_ioctl *pcchunk)
+{
+ int rc;
+ unsigned int ret_data_len;
+ struct resume_key_req *res_key;
+
+ rc = SMB2_ioctl(xid, tcon, persistent_fid, volatile_fid,
+ FSCTL_SRV_REQUEST_RESUME_KEY, true /* is_fsctl */,
+ NULL, 0 /* no input */,
+ (char **)&res_key, &ret_data_len);
+
+ if (rc) {
+ cifs_dbg(VFS, "refcpy ioctl error %d getting resume key\n", rc);
+ goto req_res_key_exit;
+ }
+ if (ret_data_len < sizeof(struct resume_key_req)) {
+ cifs_dbg(VFS, "Invalid refcopy resume key length\n");
+ rc = -EINVAL;
+ goto req_res_key_exit;
+ }
+ memcpy(pcchunk->SourceKey, res_key->ResumeKey, COPY_CHUNK_RES_KEY_SIZE);
+
+req_res_key_exit:
+ kfree(res_key);
+ return rc;
+}
+
+static int
+smb2_clone_range(const unsigned int xid,
+ struct cifsFileInfo *srcfile,
+ struct cifsFileInfo *trgtfile, u64 src_off,
+ u64 len, u64 dest_off)
+{
+ int rc;
+ unsigned int ret_data_len;
+ struct copychunk_ioctl *pcchunk;
+ char *retbuf = NULL;
+
+ pcchunk = kmalloc(sizeof(struct copychunk_ioctl), GFP_KERNEL);
+
+ if (pcchunk == NULL)
+ return -ENOMEM;
+
+ cifs_dbg(FYI, "in smb2_clone_range - about to call request res key\n");
+ /* Request a key from the server to identify the source of the copy */
+ rc = SMB2_request_res_key(xid, tlink_tcon(srcfile->tlink),
+ srcfile->fid.persistent_fid,
+ srcfile->fid.volatile_fid, pcchunk);
+
+ /* Note: request_res_key sets res_key null only if rc !=0 */
+ if (rc)
+ return rc;
+
+ /* For now array only one chunk long, will make more flexible later */
+ pcchunk->ChunkCount = __constant_cpu_to_le32(1);
+ pcchunk->Reserved = 0;
+ pcchunk->SourceOffset = cpu_to_le64(src_off);
+ pcchunk->TargetOffset = cpu_to_le64(dest_off);
+ pcchunk->Length = cpu_to_le32(len);
+ pcchunk->Reserved2 = 0;
+
+ /* Request that server copy to target from src file identified by key */
+ rc = SMB2_ioctl(xid, tlink_tcon(trgtfile->tlink),
+ trgtfile->fid.persistent_fid,
+ trgtfile->fid.volatile_fid, FSCTL_SRV_COPYCHUNK_WRITE,
+ true /* is_fsctl */, (char *)pcchunk,
+ sizeof(struct copychunk_ioctl), &retbuf, &ret_data_len);
+
+ /* BB need to special case rc = EINVAL to alter chunk size */
+
+ cifs_dbg(FYI, "rc %d data length out %d\n", rc, ret_data_len);
+
+ kfree(pcchunk);
+ return rc;
+}
+
+static int
smb2_flush_file(const unsigned int xid, struct cifs_tcon *tcon,
struct cifs_fid *fid)
{
@@ -1017,6 +1096,7 @@ struct smb_version_operations smb20_operations = {
.set_oplock_level = smb2_set_oplock_level,
.create_lease_buf = smb2_create_lease_buf,
.parse_lease_buf = smb2_parse_lease_buf,
+ .clone_range = smb2_clone_range,
};
struct smb_version_operations smb21_operations = {
@@ -1090,6 +1170,7 @@ struct smb_version_operations smb21_operations = {
.set_oplock_level = smb21_set_oplock_level,
.create_lease_buf = smb2_create_lease_buf,
.parse_lease_buf = smb2_parse_lease_buf,
+ .clone_range = smb2_clone_range,
};
struct smb_version_operations smb30_operations = {
@@ -1165,6 +1246,7 @@ struct smb_version_operations smb30_operations = {
.set_oplock_level = smb3_set_oplock_level,
.create_lease_buf = smb3_create_lease_buf,
.parse_lease_buf = smb3_parse_lease_buf,
+ .clone_range = smb2_clone_range,
};
struct smb_version_values smb20_values = {
diff --git a/fs/cifs/smb2pdu.c b/fs/cifs/smb2pdu.c
index 8ab05b0d6778..d65270c290a1 100644
--- a/fs/cifs/smb2pdu.c
+++ b/fs/cifs/smb2pdu.c
@@ -630,6 +630,8 @@ ssetup_ntlmssp_authenticate:
goto ssetup_exit;
ses->session_flags = le16_to_cpu(rsp->SessionFlags);
+ if (ses->session_flags & SMB2_SESSION_FLAG_ENCRYPT_DATA)
+ cifs_dbg(VFS, "SMB3 encryption not supported yet\n");
ssetup_exit:
free_rsp_buf(resp_buftype, rsp);
@@ -717,6 +719,14 @@ static inline void cifs_stats_fail_inc(struct cifs_tcon *tcon, uint16_t code)
#define MAX_SHARENAME_LENGTH (255 /* server */ + 80 /* share */ + 1 /* NULL */)
+/* These are similar values to what Windows uses */
+static inline void init_copy_chunk_defaults(struct cifs_tcon *tcon)
+{
+ tcon->max_chunks = 256;
+ tcon->max_bytes_chunk = 1048576;
+ tcon->max_bytes_copy = 16777216;
+}
+
int
SMB2_tcon(const unsigned int xid, struct cifs_ses *ses, const char *tree,
struct cifs_tcon *tcon, const struct nls_table *cp)
@@ -818,7 +828,7 @@ SMB2_tcon(const unsigned int xid, struct cifs_ses *ses, const char *tree,
if ((rsp->Capabilities & SMB2_SHARE_CAP_DFS) &&
((tcon->share_flags & SHI1005_FLAGS_DFS) == 0))
cifs_dbg(VFS, "DFS capability contradicts DFS flag\n");
-
+ init_copy_chunk_defaults(tcon);
tcon_exit:
free_rsp_buf(resp_buftype, rsp);
kfree(unc_path);
diff --git a/fs/cifs/smb2pdu.h b/fs/cifs/smb2pdu.h
index 6183b1b7550f..f88320bbb477 100644
--- a/fs/cifs/smb2pdu.h
+++ b/fs/cifs/smb2pdu.h
@@ -122,6 +122,23 @@ struct smb2_pdu {
__le16 StructureSize2; /* size of wct area (varies, request specific) */
} __packed;
+struct smb2_transform_hdr {
+ __be32 smb2_buf_length; /* big endian on wire */
+ /* length is only two or three bytes - with
+ one or two byte type preceding it that MBZ */
+ __u8 ProtocolId[4]; /* 0xFD 'S' 'M' 'B' */
+ __u8 Signature[16];
+ __u8 Nonce[11];
+ __u8 Reserved[5];
+ __le32 OriginalMessageSize;
+ __u16 Reserved1;
+ __le16 EncryptionAlgorithm;
+ __u64 SessionId;
+} __packed;
+
+/* Encryption Algorithms */
+#define SMB2_ENCRYPTION_AES128_CCM __constant_cpu_to_le16(0x0001)
+
/*
* SMB2 flag definitions
*/
@@ -237,6 +254,7 @@ struct smb2_sess_setup_req {
/* Currently defined SessionFlags */
#define SMB2_SESSION_FLAG_IS_GUEST 0x0001
#define SMB2_SESSION_FLAG_IS_NULL 0x0002
+#define SMB2_SESSION_FLAG_ENCRYPT_DATA 0x0004
struct smb2_sess_setup_rsp {
struct smb2_hdr hdr;
__le16 StructureSize; /* Must be 9 */
@@ -534,9 +552,16 @@ struct create_durable {
} Data;
} __packed;
+#define COPY_CHUNK_RES_KEY_SIZE 24
+struct resume_key_req {
+ char ResumeKey[COPY_CHUNK_RES_KEY_SIZE];
+ __le32 ContextLength; /* MBZ */
+ char Context[0]; /* ignored, Windows sets to 4 bytes of zero */
+} __packed;
+
/* this goes in the ioctl buffer when doing a copychunk request */
struct copychunk_ioctl {
- char SourceKey[24];
+ char SourceKey[COPY_CHUNK_RES_KEY_SIZE];
__le32 ChunkCount; /* we are only sending 1 */
__le32 Reserved;
/* array will only be one chunk long for us */
@@ -546,6 +571,12 @@ struct copychunk_ioctl {
__u32 Reserved2;
} __packed;
+struct copychunk_ioctl_rsp {
+ __le32 ChunksWritten;
+ __le32 ChunkBytesWritten;
+ __le32 TotalBytesWritten;
+} __packed;
+
/* Response and Request are the same format */
struct validate_negotiate_info {
__le32 Capabilities;
diff --git a/fs/cifs/smb2proto.h b/fs/cifs/smb2proto.h
index 313813e4c19b..b4eea105b08c 100644
--- a/fs/cifs/smb2proto.h
+++ b/fs/cifs/smb2proto.h
@@ -61,7 +61,7 @@ extern void move_smb2_info_to_cifs(FILE_ALL_INFO *dst,
extern int smb2_query_path_info(const unsigned int xid, struct cifs_tcon *tcon,
struct cifs_sb_info *cifs_sb,
const char *full_path, FILE_ALL_INFO *data,
- bool *adjust_tz);
+ bool *adjust_tz, bool *symlink);
extern int smb2_set_path_size(const unsigned int xid, struct cifs_tcon *tcon,
const char *full_path, __u64 size,
struct cifs_sb_info *cifs_sb, bool set_alloc);
diff --git a/fs/dlm/netlink.c b/fs/dlm/netlink.c
index 60a327863b11..e7cfbaf8d0e2 100644
--- a/fs/dlm/netlink.c
+++ b/fs/dlm/netlink.c
@@ -74,14 +74,16 @@ static int user_cmd(struct sk_buff *skb, struct genl_info *info)
return 0;
}
-static struct genl_ops dlm_nl_ops = {
- .cmd = DLM_CMD_HELLO,
- .doit = user_cmd,
+static struct genl_ops dlm_nl_ops[] = {
+ {
+ .cmd = DLM_CMD_HELLO,
+ .doit = user_cmd,
+ },
};
int __init dlm_netlink_init(void)
{
- return genl_register_family_with_ops(&family, &dlm_nl_ops, 1);
+ return genl_register_family_with_ops(&family, dlm_nl_ops);
}
void dlm_netlink_exit(void)
diff --git a/fs/nfs/Kconfig b/fs/nfs/Kconfig
index 38c1768b4142..3dece03f2fc8 100644
--- a/fs/nfs/Kconfig
+++ b/fs/nfs/Kconfig
@@ -116,17 +116,17 @@ config NFS_V4_2
config PNFS_FILE_LAYOUT
tristate
depends on NFS_V4_1
- default m
+ default NFS_V4
config PNFS_BLOCK
tristate
depends on NFS_V4_1 && BLK_DEV_DM
- default m
+ default NFS_V4
config PNFS_OBJLAYOUT
tristate
depends on NFS_V4_1 && SCSI_OSD_ULD
- default m
+ default NFS_V4
config NFS_V4_1_IMPLEMENTATION_ID_DOMAIN
string "NFSv4.1 Implementation ID Domain"
diff --git a/fs/nfs/nfs4state.c b/fs/nfs/nfs4state.c
index 74a7e12e10df..059c01b67a71 100644
--- a/fs/nfs/nfs4state.c
+++ b/fs/nfs/nfs4state.c
@@ -2093,10 +2093,15 @@ again:
nfs4_root_machine_cred(clp);
goto again;
}
- if (i > 2)
+ if (clnt->cl_auth->au_flavor == RPC_AUTH_UNIX)
break;
case -NFS4ERR_CLID_INUSE:
case -NFS4ERR_WRONGSEC:
+ /* No point in retrying if we already used RPC_AUTH_UNIX */
+ if (clnt->cl_auth->au_flavor == RPC_AUTH_UNIX) {
+ status = -EPERM;
+ break;
+ }
clnt = rpc_clone_client_set_auth(clnt, RPC_AUTH_UNIX);
if (IS_ERR(clnt)) {
status = PTR_ERR(clnt);
diff --git a/fs/nfs/super.c b/fs/nfs/super.c
index 317d6fc2160e..910ed906eb82 100644
--- a/fs/nfs/super.c
+++ b/fs/nfs/super.c
@@ -1614,7 +1614,7 @@ static int nfs_parse_mount_options(char *raw,
goto out_minorversion_mismatch;
if (mnt->options & NFS_OPTION_MIGRATION &&
- mnt->version != 4 && mnt->minorversion != 0)
+ (mnt->version != 4 || mnt->minorversion != 0))
goto out_migration_misuse;
/*
diff --git a/fs/nfsd/Kconfig b/fs/nfsd/Kconfig
index dc8f1ef665ce..f994e750e0d1 100644
--- a/fs/nfsd/Kconfig
+++ b/fs/nfsd/Kconfig
@@ -95,7 +95,7 @@ config NFSD_V4_SECURITY_LABEL
Smack policies on NFSv4 files, say N.
WARNING: there is still a chance of backwards-incompatible protocol changes.
- For now we recommend "Y" only for developers and testers."
+ For now we recommend "Y" only for developers and testers.
config NFSD_FAULT_INJECTION
bool "NFS server manual fault injection"
diff --git a/fs/nfsd/export.c b/fs/nfsd/export.c
index 5f38ea36e266..8513c598fabf 100644
--- a/fs/nfsd/export.c
+++ b/fs/nfsd/export.c
@@ -536,16 +536,12 @@ static int svc_export_parse(struct cache_detail *cd, char *mesg, int mlen)
if (err)
goto out3;
exp.ex_anon_uid= make_kuid(&init_user_ns, an_int);
- if (!uid_valid(exp.ex_anon_uid))
- goto out3;
/* anon gid */
err = get_int(&mesg, &an_int);
if (err)
goto out3;
exp.ex_anon_gid= make_kgid(&init_user_ns, an_int);
- if (!gid_valid(exp.ex_anon_gid))
- goto out3;
/* fsid */
err = get_int(&mesg, &an_int);
@@ -583,6 +579,26 @@ static int svc_export_parse(struct cache_detail *cd, char *mesg, int mlen)
exp.ex_uuid);
if (err)
goto out4;
+ /*
+ * No point caching this if it would immediately expire.
+ * Also, this protects exportfs's dummy export from the
+ * anon_uid/anon_gid checks:
+ */
+ if (exp.h.expiry_time < seconds_since_boot())
+ goto out4;
+ /*
+ * For some reason exportfs has been passing down an
+ * invalid (-1) uid & gid on the "dummy" export which it
+ * uses to test export support. To make sure exportfs
+ * sees errors from check_export we therefore need to
+ * delay these checks till after check_export:
+ */
+ err = -EINVAL;
+ if (!uid_valid(exp.ex_anon_uid))
+ goto out4;
+ if (!gid_valid(exp.ex_anon_gid))
+ goto out4;
+ err = 0;
}
expp = svc_export_lookup(&exp);
diff --git a/fs/nfsd/nfs4state.c b/fs/nfsd/nfs4state.c
index f36a30a9f2d1..105d6fa7c514 100644
--- a/fs/nfsd/nfs4state.c
+++ b/fs/nfsd/nfs4state.c
@@ -402,11 +402,16 @@ static void remove_stid(struct nfs4_stid *s)
idr_remove(stateids, s->sc_stateid.si_opaque.so_id);
}
+static void nfs4_free_stid(struct kmem_cache *slab, struct nfs4_stid *s)
+{
+ kmem_cache_free(slab, s);
+}
+
void
nfs4_put_delegation(struct nfs4_delegation *dp)
{
if (atomic_dec_and_test(&dp->dl_count)) {
- kmem_cache_free(deleg_slab, dp);
+ nfs4_free_stid(deleg_slab, &dp->dl_stid);
num_delegations--;
}
}
@@ -610,7 +615,7 @@ static void close_generic_stateid(struct nfs4_ol_stateid *stp)
static void free_generic_stateid(struct nfs4_ol_stateid *stp)
{
remove_stid(&stp->st_stid);
- kmem_cache_free(stateid_slab, stp);
+ nfs4_free_stid(stateid_slab, &stp->st_stid);
}
static void release_lock_stateid(struct nfs4_ol_stateid *stp)
@@ -668,7 +673,6 @@ static void unhash_open_stateid(struct nfs4_ol_stateid *stp)
static void release_open_stateid(struct nfs4_ol_stateid *stp)
{
unhash_open_stateid(stp);
- unhash_stid(&stp->st_stid);
free_generic_stateid(stp);
}
@@ -690,7 +694,6 @@ static void release_last_closed_stateid(struct nfs4_openowner *oo)
struct nfs4_ol_stateid *s = oo->oo_last_closed_stid;
if (s) {
- unhash_stid(&s->st_stid);
free_generic_stateid(s);
oo->oo_last_closed_stid = NULL;
}
@@ -1127,6 +1130,11 @@ destroy_client(struct nfs4_client *clp)
dp = list_entry(reaplist.next, struct nfs4_delegation, dl_recall_lru);
destroy_delegation(dp);
}
+ list_splice_init(&clp->cl_revoked, &reaplist);
+ while (!list_empty(&reaplist)) {
+ dp = list_entry(reaplist.next, struct nfs4_delegation, dl_recall_lru);
+ destroy_revoked_delegation(dp);
+ }
while (!list_empty(&clp->cl_openowners)) {
oo = list_entry(clp->cl_openowners.next, struct nfs4_openowner, oo_perclient);
release_openowner(oo);
@@ -3154,7 +3162,7 @@ nfs4_open_delegation(struct net *net, struct svc_fh *fh,
open->op_delegate_type = NFS4_OPEN_DELEGATE_READ;
return;
out_free:
- unhash_stid(&dp->dl_stid);
+ remove_stid(&dp->dl_stid);
nfs4_put_delegation(dp);
out_no_deleg:
open->op_delegate_type = NFS4_OPEN_DELEGATE_NONE;
@@ -3995,10 +4003,9 @@ nfsd4_close(struct svc_rqst *rqstp, struct nfsd4_compound_state *cstate,
nfsd4_close_open_stateid(stp);
- if (cstate->minorversion) {
- unhash_stid(&stp->st_stid);
+ if (cstate->minorversion)
free_generic_stateid(stp);
- } else
+ else
oo->oo_last_closed_stid = stp;
if (list_empty(&oo->oo_owner.so_stateids)) {
@@ -5119,7 +5126,6 @@ out_recovery:
return ret;
}
-/* should be called with the state lock held */
void
nfs4_state_shutdown_net(struct net *net)
{
@@ -5130,6 +5136,7 @@ nfs4_state_shutdown_net(struct net *net)
cancel_delayed_work_sync(&nn->laundromat_work);
locks_end_grace(&nn->nfsd4_manager);
+ nfs4_lock_state();
INIT_LIST_HEAD(&reaplist);
spin_lock(&recall_lock);
list_for_each_safe(pos, next, &nn->del_recall_lru) {
@@ -5144,6 +5151,7 @@ nfs4_state_shutdown_net(struct net *net)
nfsd4_client_tracking_exit(net);
nfs4_state_destroy_net(net);
+ nfs4_unlock_state();
}
void
diff --git a/fs/nfsd/nfs4xdr.c b/fs/nfsd/nfs4xdr.c
index d9454fe5653f..088de1355e93 100644
--- a/fs/nfsd/nfs4xdr.c
+++ b/fs/nfsd/nfs4xdr.c
@@ -411,6 +411,7 @@ nfsd4_decode_fattr(struct nfsd4_compoundargs *argp, u32 *bmval,
label->data = kzalloc(dummy32 + 1, GFP_KERNEL);
if (!label->data)
return nfserr_jukebox;
+ label->len = dummy32;
defer_free(argp, kfree, label->data);
memcpy(label->data, buf, dummy32);
}
@@ -945,13 +946,16 @@ static __be32
nfsd4_decode_open_confirm(struct nfsd4_compoundargs *argp, struct nfsd4_open_confirm *open_conf)
{
DECODE_HEAD;
-
+
+ if (argp->minorversion >= 1)
+ return nfserr_notsupp;
+
status = nfsd4_decode_stateid(argp, &open_conf->oc_req_stateid);
if (status)
return status;
READ_BUF(4);
READ32(open_conf->oc_seqid);
-
+
DECODE_TAIL;
}
@@ -991,6 +995,14 @@ nfsd4_decode_putfh(struct nfsd4_compoundargs *argp, struct nfsd4_putfh *putfh)
}
static __be32
+nfsd4_decode_putpubfh(struct nfsd4_compoundargs *argp, void *p)
+{
+ if (argp->minorversion == 0)
+ return nfs_ok;
+ return nfserr_notsupp;
+}
+
+static __be32
nfsd4_decode_read(struct nfsd4_compoundargs *argp, struct nfsd4_read *read)
{
DECODE_HEAD;
@@ -1061,6 +1073,9 @@ nfsd4_decode_renew(struct nfsd4_compoundargs *argp, clientid_t *clientid)
{
DECODE_HEAD;
+ if (argp->minorversion >= 1)
+ return nfserr_notsupp;
+
READ_BUF(sizeof(clientid_t));
COPYMEM(clientid, sizeof(clientid_t));
@@ -1111,6 +1126,9 @@ nfsd4_decode_setclientid(struct nfsd4_compoundargs *argp, struct nfsd4_setclient
{
DECODE_HEAD;
+ if (argp->minorversion >= 1)
+ return nfserr_notsupp;
+
READ_BUF(NFS4_VERIFIER_SIZE);
COPYMEM(setclientid->se_verf.data, NFS4_VERIFIER_SIZE);
@@ -1137,6 +1155,9 @@ nfsd4_decode_setclientid_confirm(struct nfsd4_compoundargs *argp, struct nfsd4_s
{
DECODE_HEAD;
+ if (argp->minorversion >= 1)
+ return nfserr_notsupp;
+
READ_BUF(8 + NFS4_VERIFIER_SIZE);
COPYMEM(&scd_c->sc_clientid, 8);
COPYMEM(&scd_c->sc_confirm, NFS4_VERIFIER_SIZE);
@@ -1220,6 +1241,9 @@ nfsd4_decode_release_lockowner(struct nfsd4_compoundargs *argp, struct nfsd4_rel
{
DECODE_HEAD;
+ if (argp->minorversion >= 1)
+ return nfserr_notsupp;
+
READ_BUF(12);
COPYMEM(&rlockowner->rl_clientid, sizeof(clientid_t));
READ32(rlockowner->rl_owner.len);
@@ -1519,7 +1543,7 @@ static nfsd4_dec nfsd4_dec_ops[] = {
[OP_OPEN_CONFIRM] = (nfsd4_dec)nfsd4_decode_open_confirm,
[OP_OPEN_DOWNGRADE] = (nfsd4_dec)nfsd4_decode_open_downgrade,
[OP_PUTFH] = (nfsd4_dec)nfsd4_decode_putfh,
- [OP_PUTPUBFH] = (nfsd4_dec)nfsd4_decode_noop,
+ [OP_PUTPUBFH] = (nfsd4_dec)nfsd4_decode_putpubfh,
[OP_PUTROOTFH] = (nfsd4_dec)nfsd4_decode_noop,
[OP_READ] = (nfsd4_dec)nfsd4_decode_read,
[OP_READDIR] = (nfsd4_dec)nfsd4_decode_readdir,
@@ -1536,46 +1560,6 @@ static nfsd4_dec nfsd4_dec_ops[] = {
[OP_VERIFY] = (nfsd4_dec)nfsd4_decode_verify,
[OP_WRITE] = (nfsd4_dec)nfsd4_decode_write,
[OP_RELEASE_LOCKOWNER] = (nfsd4_dec)nfsd4_decode_release_lockowner,
-};
-
-static nfsd4_dec nfsd41_dec_ops[] = {
- [OP_ACCESS] = (nfsd4_dec)nfsd4_decode_access,
- [OP_CLOSE] = (nfsd4_dec)nfsd4_decode_close,
- [OP_COMMIT] = (nfsd4_dec)nfsd4_decode_commit,
- [OP_CREATE] = (nfsd4_dec)nfsd4_decode_create,
- [OP_DELEGPURGE] = (nfsd4_dec)nfsd4_decode_notsupp,
- [OP_DELEGRETURN] = (nfsd4_dec)nfsd4_decode_delegreturn,
- [OP_GETATTR] = (nfsd4_dec)nfsd4_decode_getattr,
- [OP_GETFH] = (nfsd4_dec)nfsd4_decode_noop,
- [OP_LINK] = (nfsd4_dec)nfsd4_decode_link,
- [OP_LOCK] = (nfsd4_dec)nfsd4_decode_lock,
- [OP_LOCKT] = (nfsd4_dec)nfsd4_decode_lockt,
- [OP_LOCKU] = (nfsd4_dec)nfsd4_decode_locku,
- [OP_LOOKUP] = (nfsd4_dec)nfsd4_decode_lookup,
- [OP_LOOKUPP] = (nfsd4_dec)nfsd4_decode_noop,
- [OP_NVERIFY] = (nfsd4_dec)nfsd4_decode_verify,
- [OP_OPEN] = (nfsd4_dec)nfsd4_decode_open,
- [OP_OPENATTR] = (nfsd4_dec)nfsd4_decode_notsupp,
- [OP_OPEN_CONFIRM] = (nfsd4_dec)nfsd4_decode_notsupp,
- [OP_OPEN_DOWNGRADE] = (nfsd4_dec)nfsd4_decode_open_downgrade,
- [OP_PUTFH] = (nfsd4_dec)nfsd4_decode_putfh,
- [OP_PUTPUBFH] = (nfsd4_dec)nfsd4_decode_notsupp,
- [OP_PUTROOTFH] = (nfsd4_dec)nfsd4_decode_noop,
- [OP_READ] = (nfsd4_dec)nfsd4_decode_read,
- [OP_READDIR] = (nfsd4_dec)nfsd4_decode_readdir,
- [OP_READLINK] = (nfsd4_dec)nfsd4_decode_noop,
- [OP_REMOVE] = (nfsd4_dec)nfsd4_decode_remove,
- [OP_RENAME] = (nfsd4_dec)nfsd4_decode_rename,
- [OP_RENEW] = (nfsd4_dec)nfsd4_decode_notsupp,
- [OP_RESTOREFH] = (nfsd4_dec)nfsd4_decode_noop,
- [OP_SAVEFH] = (nfsd4_dec)nfsd4_decode_noop,
- [OP_SECINFO] = (nfsd4_dec)nfsd4_decode_secinfo,
- [OP_SETATTR] = (nfsd4_dec)nfsd4_decode_setattr,
- [OP_SETCLIENTID] = (nfsd4_dec)nfsd4_decode_notsupp,
- [OP_SETCLIENTID_CONFIRM]= (nfsd4_dec)nfsd4_decode_notsupp,
- [OP_VERIFY] = (nfsd4_dec)nfsd4_decode_verify,
- [OP_WRITE] = (nfsd4_dec)nfsd4_decode_write,
- [OP_RELEASE_LOCKOWNER] = (nfsd4_dec)nfsd4_decode_notsupp,
/* new operations for NFSv4.1 */
[OP_BACKCHANNEL_CTL] = (nfsd4_dec)nfsd4_decode_backchannel_ctl,
@@ -1599,24 +1583,53 @@ static nfsd4_dec nfsd41_dec_ops[] = {
[OP_RECLAIM_COMPLETE] = (nfsd4_dec)nfsd4_decode_reclaim_complete,
};
-struct nfsd4_minorversion_ops {
- nfsd4_dec *decoders;
- int nops;
-};
+static inline bool
+nfsd4_opnum_in_range(struct nfsd4_compoundargs *argp, struct nfsd4_op *op)
+{
+ if (op->opnum < FIRST_NFS4_OP)
+ return false;
+ else if (argp->minorversion == 0 && op->opnum > LAST_NFS40_OP)
+ return false;
+ else if (argp->minorversion == 1 && op->opnum > LAST_NFS41_OP)
+ return false;
+ else if (argp->minorversion == 2 && op->opnum > LAST_NFS42_OP)
+ return false;
+ return true;
+}
-static struct nfsd4_minorversion_ops nfsd4_minorversion[] = {
- [0] = { nfsd4_dec_ops, ARRAY_SIZE(nfsd4_dec_ops) },
- [1] = { nfsd41_dec_ops, ARRAY_SIZE(nfsd41_dec_ops) },
- [2] = { nfsd41_dec_ops, ARRAY_SIZE(nfsd41_dec_ops) },
-};
+/*
+ * Return a rough estimate of the maximum possible reply size. Note the
+ * estimate includes rpc headers so is meant to be passed to
+ * svc_reserve, not svc_reserve_auth.
+ *
+ * Also note the current compound encoding permits only one operation to
+ * use pages beyond the first one, so the maximum possible length is the
+ * maximum over these values, not the sum.
+ */
+static int nfsd4_max_reply(u32 opnum)
+{
+ switch (opnum) {
+ case OP_READLINK:
+ case OP_READDIR:
+ /*
+ * Both of these ops take a single page for data and put
+ * the head and tail in another page:
+ */
+ return 2 * PAGE_SIZE;
+ case OP_READ:
+ return INT_MAX;
+ default:
+ return PAGE_SIZE;
+ }
+}
static __be32
nfsd4_decode_compound(struct nfsd4_compoundargs *argp)
{
DECODE_HEAD;
struct nfsd4_op *op;
- struct nfsd4_minorversion_ops *ops;
bool cachethis = false;
+ int max_reply = PAGE_SIZE;
int i;
READ_BUF(4);
@@ -1640,10 +1653,9 @@ nfsd4_decode_compound(struct nfsd4_compoundargs *argp)
}
}
- if (argp->minorversion >= ARRAY_SIZE(nfsd4_minorversion))
+ if (argp->minorversion > NFSD_SUPPORTED_MINOR_VERSION)
argp->opcnt = 0;
- ops = &nfsd4_minorversion[argp->minorversion];
for (i = 0; i < argp->opcnt; i++) {
op = &argp->ops[i];
op->replay = NULL;
@@ -1651,8 +1663,8 @@ nfsd4_decode_compound(struct nfsd4_compoundargs *argp)
READ_BUF(4);
READ32(op->opnum);
- if (op->opnum >= FIRST_NFS4_OP && op->opnum <= LAST_NFS4_OP)
- op->status = ops->decoders[op->opnum](argp, &op->u);
+ if (nfsd4_opnum_in_range(argp, op))
+ op->status = nfsd4_dec_ops[op->opnum](argp, &op->u);
else {
op->opnum = OP_ILLEGAL;
op->status = nfserr_op_illegal;
@@ -1667,10 +1679,14 @@ nfsd4_decode_compound(struct nfsd4_compoundargs *argp)
* op in the compound wants to be cached:
*/
cachethis |= nfsd4_cache_this_op(op);
+
+ max_reply = max(max_reply, nfsd4_max_reply(op->opnum));
}
/* Sessions make the DRC unnecessary: */
if (argp->minorversion)
cachethis = false;
+ if (max_reply != INT_MAX)
+ svc_reserve(argp->rqstp, max_reply);
argp->rqstp->rq_cachetype = cachethis ? RC_REPLBUFF : RC_NOCACHE;
DECODE_TAIL;
@@ -2375,7 +2391,7 @@ out_acl:
if (bmval0 & FATTR4_WORD0_MAXFILESIZE) {
if ((buflen -= 8) < 0)
goto out_resource;
- WRITE64(~(u64)0);
+ WRITE64(exp->ex_path.mnt->mnt_sb->s_maxbytes);
}
if (bmval0 & FATTR4_WORD0_MAXLINK) {
if ((buflen -= 4) < 0)
diff --git a/fs/nfsd/nfsfh.c b/fs/nfsd/nfsfh.c
index 3d0e15ae6f72..3c37b160dcad 100644
--- a/fs/nfsd/nfsfh.c
+++ b/fs/nfsd/nfsfh.c
@@ -598,22 +598,20 @@ fh_update(struct svc_fh *fhp)
_fh_update_old(dentry, fhp->fh_export, &fhp->fh_handle);
} else {
if (fhp->fh_handle.fh_fileid_type != FILEID_ROOT)
- goto out;
+ return 0;
_fh_update(fhp, fhp->fh_export, dentry);
if (fhp->fh_handle.fh_fileid_type == FILEID_INVALID)
return nfserr_opnotsupp;
}
-out:
return 0;
-
out_bad:
printk(KERN_ERR "fh_update: fh not verified!\n");
- goto out;
+ return nfserr_serverfault;
out_negative:
printk(KERN_ERR "fh_update: %pd2 still negative!\n",
dentry);
- goto out;
+ return nfserr_serverfault;
}
/*
diff --git a/fs/quota/netlink.c b/fs/quota/netlink.c
index 16e8abb7709b..72d29177998e 100644
--- a/fs/quota/netlink.c
+++ b/fs/quota/netlink.c
@@ -9,13 +9,25 @@
#include <net/netlink.h>
#include <net/genetlink.h>
+static const struct genl_multicast_group quota_mcgrps[] = {
+ { .name = "events", },
+};
+
/* Netlink family structure for quota */
static struct genl_family quota_genl_family = {
- .id = GENL_ID_GENERATE,
+ /*
+ * Needed due to multicast group ID abuse - old code assumed
+ * the family ID was also a valid multicast group ID (which
+ * isn't true) and userspace might thus rely on it. Assign a
+ * static ID for this group to make dealing with that easier.
+ */
+ .id = GENL_ID_VFS_DQUOT,
.hdrsize = 0,
.name = "VFS_DQUOT",
.version = 1,
.maxattr = QUOTA_NL_A_MAX,
+ .mcgrps = quota_mcgrps,
+ .n_mcgrps = ARRAY_SIZE(quota_mcgrps),
};
/**
@@ -78,7 +90,7 @@ void quota_send_warning(struct kqid qid, dev_t dev,
goto attr_err_out;
genlmsg_end(skb, msg_head);
- genlmsg_multicast(skb, 0, quota_genl_family.id, GFP_NOFS);
+ genlmsg_multicast(&quota_genl_family, skb, 0, 0, GFP_NOFS);
return;
attr_err_out:
printk(KERN_ERR "VFS: Not enough space to compose quota message!\n");
diff --git a/fs/seq_file.c b/fs/seq_file.c
index 1cd2388ca5bd..1d641bb108d2 100644
--- a/fs/seq_file.c
+++ b/fs/seq_file.c
@@ -136,6 +136,7 @@ static int traverse(struct seq_file *m, loff_t offset)
Eoverflow:
m->op->stop(m, p);
kfree(m->buf);
+ m->count = 0;
m->buf = kmalloc(m->size <<= 1, GFP_KERNEL);
return !m->buf ? -ENOMEM : -EAGAIN;
}
@@ -232,10 +233,10 @@ ssize_t seq_read(struct file *file, char __user *buf, size_t size, loff_t *ppos)
goto Fill;
m->op->stop(m, p);
kfree(m->buf);
+ m->count = 0;
m->buf = kmalloc(m->size <<= 1, GFP_KERNEL);
if (!m->buf)
goto Enomem;
- m->count = 0;
m->version = 0;
pos = m->index;
p = m->op->start(m, &pos);
generated by cgit v1.2.3 (git 2.39.0) at 2025-01-09 12:35:36 +0300