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-rw-r--r--fs/smb/client/cifsfs.h2
-rw-r--r--fs/smb/client/file.c18
-rw-r--r--fs/smb/client/fscache.h6
-rw-r--r--fs/smb/client/inode.c17
-rw-r--r--fs/smb/client/smb2ops.c6
-rw-r--r--fs/smb/client/xattr.c2
-rw-r--r--fs/smb/server/connection.c16
-rw-r--r--fs/smb/server/ksmbd_spnego_negtokeninit.asn18
-rw-r--r--fs/smb/server/ksmbd_spnego_negtokentarg.asn17
-rw-r--r--fs/smb/server/ksmbd_work.c43
-rw-r--r--fs/smb/server/mgmt/user_config.h1
-rw-r--r--fs/smb/server/smb2pdu.c8
-rw-r--r--fs/smb/server/transport_rdma.c40
-rw-r--r--fs/smb/server/unicode.c187
-rw-r--r--fs/smb/server/vfs.c25
15 files changed, 240 insertions, 146 deletions
diff --git a/fs/smb/client/cifsfs.h b/fs/smb/client/cifsfs.h
index 41daebd220ff..8ca3d7606bb4 100644
--- a/fs/smb/client/cifsfs.h
+++ b/fs/smb/client/cifsfs.h
@@ -127,7 +127,7 @@ extern int cifs_symlink(struct mnt_idmap *idmap, struct inode *inode,
struct dentry *direntry, const char *symname);
#ifdef CONFIG_CIFS_XATTR
-extern const struct xattr_handler *cifs_xattr_handlers[];
+extern const struct xattr_handler * const cifs_xattr_handlers[];
extern ssize_t cifs_listxattr(struct dentry *, char *, size_t);
#else
# define cifs_xattr_handlers NULL
diff --git a/fs/smb/client/file.c b/fs/smb/client/file.c
index 2108b3b40ce9..cf17e3dd703e 100644
--- a/fs/smb/client/file.c
+++ b/fs/smb/client/file.c
@@ -1085,7 +1085,8 @@ int cifs_close(struct inode *inode, struct file *file)
!test_bit(CIFS_INO_CLOSE_ON_LOCK, &cinode->flags) &&
dclose) {
if (test_and_clear_bit(CIFS_INO_MODIFIED_ATTR, &cinode->flags)) {
- inode->i_mtime = inode_set_ctime_current(inode);
+ inode_set_mtime_to_ts(inode,
+ inode_set_ctime_current(inode));
}
spin_lock(&cinode->deferred_lock);
cifs_add_deferred_close(cfile, dclose);
@@ -2596,7 +2597,7 @@ static int cifs_partialpagewrite(struct page *page, unsigned from, unsigned to)
write_data, to - from, &offset);
cifsFileInfo_put(open_file);
/* Does mm or vfs already set times? */
- inode->i_atime = inode->i_mtime = inode_set_ctime_current(inode);
+ simple_inode_init_ts(inode);
if ((bytes_written > 0) && (offset))
rc = 0;
else if (bytes_written < 0)
@@ -4647,11 +4648,13 @@ static void cifs_readahead(struct readahead_control *ractl)
static int cifs_readpage_worker(struct file *file, struct page *page,
loff_t *poffset)
{
+ struct inode *inode = file_inode(file);
+ struct timespec64 atime, mtime;
char *read_data;
int rc;
/* Is the page cached? */
- rc = cifs_readpage_from_fscache(file_inode(file), page);
+ rc = cifs_readpage_from_fscache(inode, page);
if (rc == 0)
goto read_complete;
@@ -4666,11 +4669,10 @@ static int cifs_readpage_worker(struct file *file, struct page *page,
cifs_dbg(FYI, "Bytes read %d\n", rc);
/* we do not want atime to be less than mtime, it broke some apps */
- file_inode(file)->i_atime = current_time(file_inode(file));
- if (timespec64_compare(&(file_inode(file)->i_atime), &(file_inode(file)->i_mtime)))
- file_inode(file)->i_atime = file_inode(file)->i_mtime;
- else
- file_inode(file)->i_atime = current_time(file_inode(file));
+ atime = inode_set_atime_to_ts(inode, current_time(inode));
+ mtime = inode_get_mtime(inode);
+ if (timespec64_compare(&atime, &mtime))
+ inode_set_atime_to_ts(inode, inode_get_mtime(inode));
if (PAGE_SIZE > rc)
memset(read_data + rc, 0, PAGE_SIZE - rc);
diff --git a/fs/smb/client/fscache.h b/fs/smb/client/fscache.h
index 84f3b09367d2..a3d73720914f 100644
--- a/fs/smb/client/fscache.h
+++ b/fs/smb/client/fscache.h
@@ -49,12 +49,12 @@ static inline
void cifs_fscache_fill_coherency(struct inode *inode,
struct cifs_fscache_inode_coherency_data *cd)
{
- struct cifsInodeInfo *cifsi = CIFS_I(inode);
struct timespec64 ctime = inode_get_ctime(inode);
+ struct timespec64 mtime = inode_get_mtime(inode);
memset(cd, 0, sizeof(*cd));
- cd->last_write_time_sec = cpu_to_le64(cifsi->netfs.inode.i_mtime.tv_sec);
- cd->last_write_time_nsec = cpu_to_le32(cifsi->netfs.inode.i_mtime.tv_nsec);
+ cd->last_write_time_sec = cpu_to_le64(mtime.tv_sec);
+ cd->last_write_time_nsec = cpu_to_le32(mtime.tv_nsec);
cd->last_change_time_sec = cpu_to_le64(ctime.tv_sec);
cd->last_change_time_nsec = cpu_to_le32(ctime.tv_nsec);
}
diff --git a/fs/smb/client/inode.c b/fs/smb/client/inode.c
index c03a286ed418..86fbd3f847d6 100644
--- a/fs/smb/client/inode.c
+++ b/fs/smb/client/inode.c
@@ -82,6 +82,7 @@ cifs_revalidate_cache(struct inode *inode, struct cifs_fattr *fattr)
{
struct cifs_fscache_inode_coherency_data cd;
struct cifsInodeInfo *cifs_i = CIFS_I(inode);
+ struct timespec64 mtime;
cifs_dbg(FYI, "%s: revalidating inode %llu\n",
__func__, cifs_i->uniqueid);
@@ -101,7 +102,8 @@ cifs_revalidate_cache(struct inode *inode, struct cifs_fattr *fattr)
/* revalidate if mtime or size have changed */
fattr->cf_mtime = timestamp_truncate(fattr->cf_mtime, inode);
- if (timespec64_equal(&inode->i_mtime, &fattr->cf_mtime) &&
+ mtime = inode_get_mtime(inode);
+ if (timespec64_equal(&mtime, &fattr->cf_mtime) &&
cifs_i->server_eof == fattr->cf_eof) {
cifs_dbg(FYI, "%s: inode %llu is unchanged\n",
__func__, cifs_i->uniqueid);
@@ -164,10 +166,10 @@ cifs_fattr_to_inode(struct inode *inode, struct cifs_fattr *fattr)
fattr->cf_ctime = timestamp_truncate(fattr->cf_ctime, inode);
/* we do not want atime to be less than mtime, it broke some apps */
if (timespec64_compare(&fattr->cf_atime, &fattr->cf_mtime) < 0)
- inode->i_atime = fattr->cf_mtime;
+ inode_set_atime_to_ts(inode, fattr->cf_mtime);
else
- inode->i_atime = fattr->cf_atime;
- inode->i_mtime = fattr->cf_mtime;
+ inode_set_atime_to_ts(inode, fattr->cf_atime);
+ inode_set_mtime_to_ts(inode, fattr->cf_mtime);
inode_set_ctime_to_ts(inode, fattr->cf_ctime);
inode->i_rdev = fattr->cf_rdev;
cifs_nlink_fattr_to_inode(inode, fattr);
@@ -1820,7 +1822,7 @@ out_reval:
when needed */
inode_set_ctime_current(inode);
}
- dir->i_mtime = inode_set_ctime_current(dir);
+ inode_set_mtime_to_ts(dir, inode_set_ctime_current(dir));
cifs_inode = CIFS_I(dir);
CIFS_I(dir)->time = 0; /* force revalidate of dir as well */
unlink_out:
@@ -2135,7 +2137,7 @@ int cifs_rmdir(struct inode *inode, struct dentry *direntry)
cifsInode->time = 0;
inode_set_ctime_current(d_inode(direntry));
- inode->i_mtime = inode_set_ctime_current(inode);
+ inode_set_mtime_to_ts(inode, inode_set_ctime_current(inode));
rmdir_exit:
free_dentry_path(page);
@@ -2341,9 +2343,6 @@ unlink_target:
/* force revalidate to go get info when needed */
CIFS_I(source_dir)->time = CIFS_I(target_dir)->time = 0;
- source_dir->i_mtime = target_dir->i_mtime = inode_set_ctime_to_ts(source_dir,
- inode_set_ctime_current(target_dir));
-
cifs_rename_exit:
kfree(info_buf_source);
free_dentry_path(page2);
diff --git a/fs/smb/client/smb2ops.c b/fs/smb/client/smb2ops.c
index 4af0085239b7..601e7a187f87 100644
--- a/fs/smb/client/smb2ops.c
+++ b/fs/smb/client/smb2ops.c
@@ -1403,12 +1403,14 @@ smb2_close_getattr(const unsigned int xid, struct cifs_tcon *tcon,
/* Creation time should not need to be updated on close */
if (file_inf.LastWriteTime)
- inode->i_mtime = cifs_NTtimeToUnix(file_inf.LastWriteTime);
+ inode_set_mtime_to_ts(inode,
+ cifs_NTtimeToUnix(file_inf.LastWriteTime));
if (file_inf.ChangeTime)
inode_set_ctime_to_ts(inode,
cifs_NTtimeToUnix(file_inf.ChangeTime));
if (file_inf.LastAccessTime)
- inode->i_atime = cifs_NTtimeToUnix(file_inf.LastAccessTime);
+ inode_set_atime_to_ts(inode,
+ cifs_NTtimeToUnix(file_inf.LastAccessTime));
/*
* i_blocks is not related to (i_size / i_blksize),
diff --git a/fs/smb/client/xattr.c b/fs/smb/client/xattr.c
index 4ad5531686d8..ac199160bce6 100644
--- a/fs/smb/client/xattr.c
+++ b/fs/smb/client/xattr.c
@@ -478,7 +478,7 @@ static const struct xattr_handler smb3_ntsd_full_xattr_handler = {
.set = cifs_xattr_set,
};
-const struct xattr_handler *cifs_xattr_handlers[] = {
+const struct xattr_handler * const cifs_xattr_handlers[] = {
&cifs_user_xattr_handler,
&cifs_os2_xattr_handler,
&cifs_cifs_acl_xattr_handler,
diff --git a/fs/smb/server/connection.c b/fs/smb/server/connection.c
index 4b38c3a285f6..b6fa1e285c40 100644
--- a/fs/smb/server/connection.c
+++ b/fs/smb/server/connection.c
@@ -167,23 +167,7 @@ void ksmbd_all_conn_set_status(u64 sess_id, u32 status)
void ksmbd_conn_wait_idle(struct ksmbd_conn *conn, u64 sess_id)
{
- struct ksmbd_conn *bind_conn;
-
wait_event(conn->req_running_q, atomic_read(&conn->req_running) < 2);
-
- down_read(&conn_list_lock);
- list_for_each_entry(bind_conn, &conn_list, conns_list) {
- if (bind_conn == conn)
- continue;
-
- if ((bind_conn->binding || xa_load(&bind_conn->sessions, sess_id)) &&
- !ksmbd_conn_releasing(bind_conn) &&
- atomic_read(&bind_conn->req_running)) {
- wait_event(bind_conn->req_running_q,
- atomic_read(&bind_conn->req_running) == 0);
- }
- }
- up_read(&conn_list_lock);
}
int ksmbd_conn_write(struct ksmbd_work *work)
diff --git a/fs/smb/server/ksmbd_spnego_negtokeninit.asn1 b/fs/smb/server/ksmbd_spnego_negtokeninit.asn1
index 0065f191b54b..001513806fc0 100644
--- a/fs/smb/server/ksmbd_spnego_negtokeninit.asn1
+++ b/fs/smb/server/ksmbd_spnego_negtokeninit.asn1
@@ -1,3 +1,11 @@
+-- SPDX-License-Identifier: BSD-3-Clause
+--
+-- Copyright (C) 1998, 2000 IETF Trust and the persons identified as authors
+-- of the code
+--
+-- https://www.rfc-editor.org/rfc/rfc2478#section-3.2.1
+-- https://www.rfc-editor.org/rfc/rfc2743#section-3.1
+
GSSAPI ::=
[APPLICATION 0] IMPLICIT SEQUENCE {
thisMech
diff --git a/fs/smb/server/ksmbd_spnego_negtokentarg.asn1 b/fs/smb/server/ksmbd_spnego_negtokentarg.asn1
index 1151933e7b9c..797e485d57f1 100644
--- a/fs/smb/server/ksmbd_spnego_negtokentarg.asn1
+++ b/fs/smb/server/ksmbd_spnego_negtokentarg.asn1
@@ -1,3 +1,10 @@
+-- SPDX-License-Identifier: BSD-3-Clause
+--
+-- Copyright (C) 1998 IETF Trust and the persons identified as authors
+-- of the code
+--
+-- https://www.rfc-editor.org/rfc/rfc2478#section-3.2.1
+
GSSAPI ::=
CHOICE {
negTokenInit
diff --git a/fs/smb/server/ksmbd_work.c b/fs/smb/server/ksmbd_work.c
index 51def3ca74c0..a2ed441e837a 100644
--- a/fs/smb/server/ksmbd_work.c
+++ b/fs/smb/server/ksmbd_work.c
@@ -95,11 +95,28 @@ bool ksmbd_queue_work(struct ksmbd_work *work)
return queue_work(ksmbd_wq, &work->work);
}
-static int ksmbd_realloc_iov_pin(struct ksmbd_work *work, void *ib,
- unsigned int ib_len)
+static inline void __ksmbd_iov_pin(struct ksmbd_work *work, void *ib,
+ unsigned int ib_len)
{
+ work->iov[++work->iov_idx].iov_base = ib;
+ work->iov[work->iov_idx].iov_len = ib_len;
+ work->iov_cnt++;
+}
+
+static int __ksmbd_iov_pin_rsp(struct ksmbd_work *work, void *ib, int len,
+ void *aux_buf, unsigned int aux_size)
+{
+ struct aux_read *ar;
+ int need_iov_cnt = 1;
- if (work->iov_alloc_cnt <= work->iov_cnt) {
+ if (aux_size) {
+ need_iov_cnt++;
+ ar = kmalloc(sizeof(struct aux_read), GFP_KERNEL);
+ if (!ar)
+ return -ENOMEM;
+ }
+
+ if (work->iov_alloc_cnt < work->iov_cnt + need_iov_cnt) {
struct kvec *new;
work->iov_alloc_cnt += 4;
@@ -111,16 +128,6 @@ static int ksmbd_realloc_iov_pin(struct ksmbd_work *work, void *ib,
work->iov = new;
}
- work->iov[++work->iov_idx].iov_base = ib;
- work->iov[work->iov_idx].iov_len = ib_len;
- work->iov_cnt++;
-
- return 0;
-}
-
-static int __ksmbd_iov_pin_rsp(struct ksmbd_work *work, void *ib, int len,
- void *aux_buf, unsigned int aux_size)
-{
/* Plus rfc_length size on first iov */
if (!work->iov_idx) {
work->iov[work->iov_idx].iov_base = work->response_buf;
@@ -129,19 +136,13 @@ static int __ksmbd_iov_pin_rsp(struct ksmbd_work *work, void *ib, int len,
work->iov_cnt++;
}
- ksmbd_realloc_iov_pin(work, ib, len);
+ __ksmbd_iov_pin(work, ib, len);
inc_rfc1001_len(work->iov[0].iov_base, len);
if (aux_size) {
- struct aux_read *ar;
-
- ksmbd_realloc_iov_pin(work, aux_buf, aux_size);
+ __ksmbd_iov_pin(work, aux_buf, aux_size);
inc_rfc1001_len(work->iov[0].iov_base, aux_size);
- ar = kmalloc(sizeof(struct aux_read), GFP_KERNEL);
- if (!ar)
- return -ENOMEM;
-
ar->buf = aux_buf;
list_add(&ar->entry, &work->aux_read_list);
}
diff --git a/fs/smb/server/mgmt/user_config.h b/fs/smb/server/mgmt/user_config.h
index 6a44109617f1..e068a19fd904 100644
--- a/fs/smb/server/mgmt/user_config.h
+++ b/fs/smb/server/mgmt/user_config.h
@@ -18,7 +18,6 @@ struct ksmbd_user {
size_t passkey_sz;
char *passkey;
- unsigned int failed_login_count;
};
static inline bool user_guest(struct ksmbd_user *user)
diff --git a/fs/smb/server/smb2pdu.c b/fs/smb/server/smb2pdu.c
index 93262ca3f58a..658209839729 100644
--- a/fs/smb/server/smb2pdu.c
+++ b/fs/smb/server/smb2pdu.c
@@ -4834,9 +4834,9 @@ static void find_file_posix_info(struct smb2_query_info_rsp *rsp,
file_info = (struct smb311_posix_qinfo *)rsp->Buffer;
file_info->CreationTime = cpu_to_le64(fp->create_time);
- time = ksmbd_UnixTimeToNT(inode->i_atime);
+ time = ksmbd_UnixTimeToNT(inode_get_atime(inode));
file_info->LastAccessTime = cpu_to_le64(time);
- time = ksmbd_UnixTimeToNT(inode->i_mtime);
+ time = ksmbd_UnixTimeToNT(inode_get_mtime(inode));
file_info->LastWriteTime = cpu_to_le64(time);
time = ksmbd_UnixTimeToNT(inode_get_ctime(inode));
file_info->ChangeTime = cpu_to_le64(time);
@@ -5443,9 +5443,9 @@ int smb2_close(struct ksmbd_work *work)
rsp->EndOfFile = cpu_to_le64(inode->i_size);
rsp->Attributes = fp->f_ci->m_fattr;
rsp->CreationTime = cpu_to_le64(fp->create_time);
- time = ksmbd_UnixTimeToNT(inode->i_atime);
+ time = ksmbd_UnixTimeToNT(inode_get_atime(inode));
rsp->LastAccessTime = cpu_to_le64(time);
- time = ksmbd_UnixTimeToNT(inode->i_mtime);
+ time = ksmbd_UnixTimeToNT(inode_get_mtime(inode));
rsp->LastWriteTime = cpu_to_le64(time);
time = ksmbd_UnixTimeToNT(inode_get_ctime(inode));
rsp->ChangeTime = cpu_to_le64(time);
diff --git a/fs/smb/server/transport_rdma.c b/fs/smb/server/transport_rdma.c
index 3b269e1f523a..c5629a68c8b7 100644
--- a/fs/smb/server/transport_rdma.c
+++ b/fs/smb/server/transport_rdma.c
@@ -2140,8 +2140,7 @@ static int smb_direct_ib_client_add(struct ib_device *ib_dev)
if (ib_dev->node_type != RDMA_NODE_IB_CA)
smb_direct_port = SMB_DIRECT_PORT_IWARP;
- if (!ib_dev->ops.get_netdev ||
- !rdma_frwr_is_supported(&ib_dev->attrs))
+ if (!rdma_frwr_is_supported(&ib_dev->attrs))
return 0;
smb_dev = kzalloc(sizeof(*smb_dev), GFP_KERNEL);
@@ -2241,17 +2240,38 @@ bool ksmbd_rdma_capable_netdev(struct net_device *netdev)
for (i = 0; i < smb_dev->ib_dev->phys_port_cnt; i++) {
struct net_device *ndev;
- ndev = smb_dev->ib_dev->ops.get_netdev(smb_dev->ib_dev,
- i + 1);
- if (!ndev)
- continue;
+ if (smb_dev->ib_dev->ops.get_netdev) {
+ ndev = smb_dev->ib_dev->ops.get_netdev(
+ smb_dev->ib_dev, i + 1);
+ if (!ndev)
+ continue;
- if (ndev == netdev) {
+ if (ndev == netdev) {
+ dev_put(ndev);
+ rdma_capable = true;
+ goto out;
+ }
dev_put(ndev);
- rdma_capable = true;
- goto out;
+ /* if ib_dev does not implement ops.get_netdev
+ * check for matching infiniband GUID in hw_addr
+ */
+ } else if (netdev->type == ARPHRD_INFINIBAND) {
+ struct netdev_hw_addr *ha;
+ union ib_gid gid;
+ u32 port_num;
+ int ret;
+
+ netdev_hw_addr_list_for_each(
+ ha, &netdev->dev_addrs) {
+ memcpy(&gid, ha->addr + 4, sizeof(gid));
+ ret = ib_find_gid(smb_dev->ib_dev, &gid,
+ &port_num, NULL);
+ if (!ret) {
+ rdma_capable = true;
+ goto out;
+ }
+ }
}
- dev_put(ndev);
}
}
out:
diff --git a/fs/smb/server/unicode.c b/fs/smb/server/unicode.c
index 393dd4a7432b..43ed29ee44ea 100644
--- a/fs/smb/server/unicode.c
+++ b/fs/smb/server/unicode.c
@@ -14,45 +14,9 @@
#include "smb_common.h"
/*
- * smb_utf16_bytes() - how long will a string be after conversion?
- * @from: pointer to input string
- * @maxbytes: don't go past this many bytes of input string
- * @codepage: destination codepage
- *
- * Walk a utf16le string and return the number of bytes that the string will
- * be after being converted to the given charset, not including any null
- * termination required. Don't walk past maxbytes in the source buffer.
- *
- * Return: string length after conversion
- */
-static int smb_utf16_bytes(const __le16 *from, int maxbytes,
- const struct nls_table *codepage)
-{
- int i;
- int charlen, outlen = 0;
- int maxwords = maxbytes / 2;
- char tmp[NLS_MAX_CHARSET_SIZE];
- __u16 ftmp;
-
- for (i = 0; i < maxwords; i++) {
- ftmp = get_unaligned_le16(&from[i]);
- if (ftmp == 0)
- break;
-
- charlen = codepage->uni2char(ftmp, tmp, NLS_MAX_CHARSET_SIZE);
- if (charlen > 0)
- outlen += charlen;
- else
- outlen++;
- }
-
- return outlen;
-}
-
-/*
* cifs_mapchar() - convert a host-endian char to proper char in codepage
* @target: where converted character should be copied
- * @src_char: 2 byte host-endian source character
+ * @from: host-endian source string
* @cp: codepage to which character should be converted
* @mapchar: should character be mapped according to mapchars mount option?
*
@@ -63,10 +27,13 @@ static int smb_utf16_bytes(const __le16 *from, int maxbytes,
* Return: string length after conversion
*/
static int
-cifs_mapchar(char *target, const __u16 src_char, const struct nls_table *cp,
+cifs_mapchar(char *target, const __u16 *from, const struct nls_table *cp,
bool mapchar)
{
int len = 1;
+ __u16 src_char;
+
+ src_char = *from;
if (!mapchar)
goto cp_convert;
@@ -104,12 +71,66 @@ out:
cp_convert:
len = cp->uni2char(src_char, target, NLS_MAX_CHARSET_SIZE);
- if (len <= 0) {
- *target = '?';
- len = 1;
- }
+ if (len <= 0)
+ goto surrogate_pair;
goto out;
+
+surrogate_pair:
+ /* convert SURROGATE_PAIR and IVS */
+ if (strcmp(cp->charset, "utf8"))
+ goto unknown;
+ len = utf16s_to_utf8s(from, 3, UTF16_LITTLE_ENDIAN, target, 6);
+ if (len <= 0)
+ goto unknown;
+ return len;
+
+unknown:
+ *target = '?';
+ len = 1;
+ goto out;
+}
+
+/*
+ * smb_utf16_bytes() - compute converted string length
+ * @from: pointer to input string
+ * @maxbytes: input string length
+ * @codepage: destination codepage
+ *
+ * Walk a utf16le string and return the number of bytes that the string will
+ * be after being converted to the given charset, not including any null
+ * termination required. Don't walk past maxbytes in the source buffer.
+ *
+ * Return: string length after conversion
+ */
+static int smb_utf16_bytes(const __le16 *from, int maxbytes,
+ const struct nls_table *codepage)
+{
+ int i, j;
+ int charlen, outlen = 0;
+ int maxwords = maxbytes / 2;
+ char tmp[NLS_MAX_CHARSET_SIZE];
+ __u16 ftmp[3];
+
+ for (i = 0; i < maxwords; i++) {
+ ftmp[0] = get_unaligned_le16(&from[i]);
+ if (ftmp[0] == 0)
+ break;
+ for (j = 1; j <= 2; j++) {
+ if (i + j < maxwords)
+ ftmp[j] = get_unaligned_le16(&from[i + j]);
+ else
+ ftmp[j] = 0;
+ }
+
+ charlen = cifs_mapchar(tmp, ftmp, codepage, 0);
+ if (charlen > 0)
+ outlen += charlen;
+ else
+ outlen++;
+ }
+
+ return outlen;
}
/*
@@ -139,12 +160,12 @@ cp_convert:
static int smb_from_utf16(char *to, const __le16 *from, int tolen, int fromlen,
const struct nls_table *codepage, bool mapchar)
{
- int i, charlen, safelen;
+ int i, j, charlen, safelen;
int outlen = 0;
int nullsize = nls_nullsize(codepage);
int fromwords = fromlen / 2;
char tmp[NLS_MAX_CHARSET_SIZE];
- __u16 ftmp;
+ __u16 ftmp[3]; /* ftmp[3] = 3array x 2bytes = 6bytes UTF-16 */
/*
* because the chars can be of varying widths, we need to take care
@@ -155,9 +176,15 @@ static int smb_from_utf16(char *to, const __le16 *from, int tolen, int fromlen,
safelen = tolen - (NLS_MAX_CHARSET_SIZE + nullsize);
for (i = 0; i < fromwords; i++) {
- ftmp = get_unaligned_le16(&from[i]);
- if (ftmp == 0)
+ ftmp[0] = get_unaligned_le16(&from[i]);
+ if (ftmp[0] == 0)
break;
+ for (j = 1; j <= 2; j++) {
+ if (i + j < fromwords)
+ ftmp[j] = get_unaligned_le16(&from[i + j]);
+ else
+ ftmp[j] = 0;
+ }
/*
* check to see if converting this character might make the
@@ -172,6 +199,19 @@ static int smb_from_utf16(char *to, const __le16 *from, int tolen, int fromlen,
/* put converted char into 'to' buffer */
charlen = cifs_mapchar(&to[outlen], ftmp, codepage, mapchar);
outlen += charlen;
+
+ /*
+ * charlen (=bytes of UTF-8 for 1 character)
+ * 4bytes UTF-8(surrogate pair) is charlen=4
+ * (4bytes UTF-16 code)
+ * 7-8bytes UTF-8(IVS) is charlen=3+4 or 4+4
+ * (2 UTF-8 pairs divided to 2 UTF-16 pairs)
+ */
+ if (charlen == 4)
+ i++;
+ else if (charlen >= 5)
+ /* 5-6bytes UTF-8 */
+ i += 2;
}
/* properly null-terminate string */
@@ -306,6 +346,9 @@ int smbConvertToUTF16(__le16 *target, const char *source, int srclen,
char src_char;
__le16 dst_char;
wchar_t tmp;
+ wchar_t wchar_to[6]; /* UTF-16 */
+ int ret;
+ unicode_t u;
if (!mapchars)
return smb_strtoUTF16(target, source, srclen, cp);
@@ -348,11 +391,57 @@ int smbConvertToUTF16(__le16 *target, const char *source, int srclen,
* if no match, use question mark, which at least in
* some cases serves as wild card
*/
- if (charlen < 1) {
- dst_char = cpu_to_le16(0x003f);
- charlen = 1;
+ if (charlen > 0)
+ goto ctoUTF16;
+
+ /* convert SURROGATE_PAIR */
+ if (strcmp(cp->charset, "utf8"))
+ goto unknown;
+ if (*(source + i) & 0x80) {
+ charlen = utf8_to_utf32(source + i, 6, &u);
+ if (charlen < 0)
+ goto unknown;
+ } else
+ goto unknown;
+ ret = utf8s_to_utf16s(source + i, charlen,
+ UTF16_LITTLE_ENDIAN,
+ wchar_to, 6);
+ if (ret < 0)
+ goto unknown;
+
+ i += charlen;
+ dst_char = cpu_to_le16(*wchar_to);
+ if (charlen <= 3)
+ /* 1-3bytes UTF-8 to 2bytes UTF-16 */
+ put_unaligned(dst_char, &target[j]);
+ else if (charlen == 4) {
+ /*
+ * 4bytes UTF-8(surrogate pair) to 4bytes UTF-16
+ * 7-8bytes UTF-8(IVS) divided to 2 UTF-16
+ * (charlen=3+4 or 4+4)
+ */
+ put_unaligned(dst_char, &target[j]);
+ dst_char = cpu_to_le16(*(wchar_to + 1));
+ j++;
+ put_unaligned(dst_char, &target[j]);
+ } else if (charlen >= 5) {
+ /* 5-6bytes UTF-8 to 6bytes UTF-16 */
+ put_unaligned(dst_char, &target[j]);
+ dst_char = cpu_to_le16(*(wchar_to + 1));
+ j++;
+ put_unaligned(dst_char, &target[j]);
+ dst_char = cpu_to_le16(*(wchar_to + 2));
+ j++;
+ put_unaligned(dst_char, &target[j]);
}
+ continue;
+
+unknown:
+ dst_char = cpu_to_le16(0x003f);
+ charlen = 1;
}
+
+ctoUTF16:
/*
* character may take more than one byte in the source string,
* but will take exactly two bytes in the target string
diff --git a/fs/smb/server/vfs.c b/fs/smb/server/vfs.c
index b5a5e50fc9ca..1053127f71ad 100644
--- a/fs/smb/server/vfs.c
+++ b/fs/smb/server/vfs.c
@@ -173,10 +173,6 @@ int ksmbd_vfs_create(struct ksmbd_work *work, const char *name, umode_t mode)
return err;
}
- err = mnt_want_write(path.mnt);
- if (err)
- goto out_err;
-
mode |= S_IFREG;
err = vfs_create(mnt_idmap(path.mnt), d_inode(path.dentry),
dentry, mode, true);
@@ -186,9 +182,7 @@ int ksmbd_vfs_create(struct ksmbd_work *work, const char *name, umode_t mode)
} else {
pr_err("File(%s): creation failed (err:%d)\n", name, err);
}
- mnt_drop_write(path.mnt);
-out_err:
done_path_create(&path, dentry);
return err;
}
@@ -219,10 +213,6 @@ int ksmbd_vfs_mkdir(struct ksmbd_work *work, const char *name, umode_t mode)
return err;
}
- err = mnt_want_write(path.mnt);
- if (err)
- goto out_err2;
-
idmap = mnt_idmap(path.mnt);
mode |= S_IFDIR;
err = vfs_mkdir(idmap, d_inode(path.dentry), dentry, mode);
@@ -233,21 +223,19 @@ int ksmbd_vfs_mkdir(struct ksmbd_work *work, const char *name, umode_t mode)
dentry->d_name.len);
if (IS_ERR(d)) {
err = PTR_ERR(d);
- goto out_err1;
+ goto out_err;
}
if (unlikely(d_is_negative(d))) {
dput(d);
err = -ENOENT;
- goto out_err1;
+ goto out_err;
}
ksmbd_vfs_inherit_owner(work, d_inode(path.dentry), d_inode(d));
dput(d);
}
-out_err1:
- mnt_drop_write(path.mnt);
-out_err2:
+out_err:
done_path_create(&path, dentry);
if (err)
pr_err("mkdir(%s): creation failed (err:%d)\n", name, err);
@@ -665,16 +653,11 @@ int ksmbd_vfs_link(struct ksmbd_work *work, const char *oldname,
goto out3;
}
- err = mnt_want_write(newpath.mnt);
- if (err)
- goto out3;
-
err = vfs_link(oldpath.dentry, mnt_idmap(newpath.mnt),
d_inode(newpath.dentry),
dentry, NULL);
if (err)
ksmbd_debug(VFS, "vfs_link failed err %d\n", err);
- mnt_drop_write(newpath.mnt);
out3:
done_path_create(&newpath, dentry);
@@ -919,7 +902,7 @@ ssize_t ksmbd_vfs_getxattr(struct mnt_idmap *idmap,
/**
* ksmbd_vfs_setxattr() - vfs helper for smb set extended attributes value
* @idmap: idmap of the relevant mount
- * @dentry: dentry to set XATTR at
+ * @path: path of dentry to set XATTR at
* @attr_name: xattr name for setxattr
* @attr_value: xattr value to set
* @attr_size: size of xattr value
generated by cgit v1.2.3 (git 2.39.0) at 2024-08-07 10:25:51 +0300