static int cifs_save_resume_key(const char *current_entry,
struct cifsFileInfo *file_info)
{
struct cifs_dirent de;
int rc;
rc = cifs_fill_dirent(&de, current_entry, file_info->srch_inf.info_level,
file_info->srch_inf.unicode);
if (!rc) {
file_info->srch_inf.presume_name = de.name;
file_info->srch_inf.resume_name_len = de.namelen;
file_info->srch_inf.resume_key = de.resume_key;
}
return rc;
}
static int cifs_filldir(char *find_entry, struct file *file,
struct dir_context *ctx,
char *scratch_buf, unsigned int max_len)
{
struct cifsFileInfo *file_info = file->private_data;
struct super_block *sb = file_inode(file)->i_sb;
struct cifs_sb_info *cifs_sb = CIFS_SB(sb);
struct cifs_dirent de = { NULL, };
struct cifs_fattr fattr;
struct qstr name;
int rc = 0;
ino_t ino;
rc = cifs_fill_dirent(&de, find_entry, file_info->srch_inf.info_level,
file_info->srch_inf.unicode);
if (rc)
return rc;
if (de.namelen > max_len) {
cifs_dbg(VFS, "bad search response length %zd past smb end\n",
de.namelen);
return -EINVAL;
}
/* skip . and .. since we added them first */
if (cifs_entry_is_dot(&de, file_info->srch_inf.unicode))
return 0;
if (file_info->srch_inf.unicode) {
struct nls_table *nlt = cifs_sb->local_nls;
int map_type;
map_type = cifs_remap(cifs_sb);
name.name = scratch_buf;
name.len =
cifs_from_utf16((char *)name.name, (__le16 *)de.name,
UNICODE_NAME_MAX,
min_t(size_t, de.namelen,
(size_t)max_len), nlt, map_type);
name.len -= nls_nullsize(nlt);
} else {
name.name = de.name;
name.len = de.namelen;
}
switch (file_info->srch_inf.info_level) {
case SMB_FIND_FILE_UNIX:
cifs_unix_basic_to_fattr(&fattr,
&((FILE_UNIX_INFO *)find_entry)->basic,
cifs_sb);
break;
case SMB_FIND_FILE_INFO_STANDARD:
cifs_std_info_to_fattr(&fattr,
(FIND_FILE_STANDARD_INFO *)find_entry,
cifs_sb);
break;
default:
cifs_dir_info_to_fattr(&fattr,
(FILE_DIRECTORY_INFO *)find_entry,
cifs_sb);
break;
}
if (de.ino && (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SERVER_INUM)) {
fattr.cf_uniqueid = de.ino;
} else {
fattr.cf_uniqueid = iunique(sb, ROOT_I);
cifs_autodisable_serverino(cifs_sb);
}
if ((cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MF_SYMLINKS) &&
couldbe_mf_symlink(&fattr))
/*
* trying to get the type and mode can be slow,
* so just call those regular files for now, and mark
* for reval
*/
fattr.cf_flags |= CIFS_FATTR_NEED_REVAL;
cifs_prime_dcache(file->f_path.dentry, &name, &fattr);
ino = cifs_uniqueid_to_ino_t(fattr.cf_uniqueid);
return !dir_emit(ctx, name.name, name.len, ino, fattr.cf_dtype);
}
static int cifs_filldir(char *find_entry, struct file *file, filldir_t filldir,
void *dirent, char *scratch_buf, unsigned int max_len)
{
struct cifsFileInfo *file_info = file->private_data;
struct super_block *sb = file->f_path.dentry->d_sb;
struct cifs_sb_info *cifs_sb = CIFS_SB(sb);
struct cifs_dirent de = { NULL, };
struct cifs_fattr fattr;
struct dentry *dentry;
struct qstr name;
int rc = 0;
ino_t ino;
rc = cifs_fill_dirent(&de, find_entry, file_info->srch_inf.info_level,
file_info->srch_inf.unicode);
if (rc)
return rc;
if (de.namelen > max_len) {
cERROR(1, "bad search response length %zd past smb end",
de.namelen);
return -EINVAL;
}
if (cifs_entry_is_dot(&de, file_info->srch_inf.unicode))
return 0;
if (file_info->srch_inf.unicode) {
struct nls_table *nlt = cifs_sb->local_nls;
name.name = scratch_buf;
name.len =
cifs_from_utf16((char *)name.name, (__le16 *)de.name,
UNICODE_NAME_MAX,
min_t(size_t, de.namelen,
(size_t)max_len), nlt,
cifs_sb->mnt_cifs_flags &
CIFS_MOUNT_MAP_SPECIAL_CHR);
name.len -= nls_nullsize(nlt);
} else {
name.name = de.name;
name.len = de.namelen;
}
switch (file_info->srch_inf.info_level) {
case SMB_FIND_FILE_UNIX:
cifs_unix_basic_to_fattr(&fattr,
&((FILE_UNIX_INFO *)find_entry)->basic,
cifs_sb);
break;
case SMB_FIND_FILE_INFO_STANDARD:
cifs_std_info_to_fattr(&fattr,
(FIND_FILE_STANDARD_INFO *)find_entry,
cifs_sb);
break;
default:
cifs_dir_info_to_fattr(&fattr,
(FILE_DIRECTORY_INFO *)find_entry,
cifs_sb);
break;
}
if (de.ino && (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_SERVER_INUM)) {
fattr.cf_uniqueid = de.ino;
} else {
fattr.cf_uniqueid = iunique(sb, ROOT_I);
cifs_autodisable_serverino(cifs_sb);
}
if ((cifs_sb->mnt_cifs_flags & CIFS_MOUNT_MF_SYMLINKS) &&
CIFSCouldBeMFSymlink(&fattr))
fattr.cf_flags |= CIFS_FATTR_NEED_REVAL;
ino = cifs_uniqueid_to_ino_t(fattr.cf_uniqueid);
dentry = cifs_readdir_lookup(file->f_dentry, &name, &fattr);
rc = filldir(dirent, name.name, name.len, file->f_pos, ino,
fattr.cf_dtype);
dput(dentry);
return rc;
}
