diff options
Diffstat (limited to 'fs/cifs/inode.c')
| -rw-r--r-- | fs/cifs/inode.c | 44 |
1 files changed, 36 insertions, 8 deletions
diff --git a/fs/cifs/inode.c b/fs/cifs/inode.c index daec31be8571..9ee5f304592f 100644 --- a/fs/cifs/inode.c +++ b/fs/cifs/inode.c @@ -656,7 +656,7 @@ smb311_posix_info_to_fattr(struct cifs_fattr *fattr, struct smb311_posix_qinfo * static void cifs_all_info_to_fattr(struct cifs_fattr *fattr, FILE_ALL_INFO *info, struct super_block *sb, bool adjust_tz, - bool symlink) + bool symlink, u32 reparse_tag) { struct cifs_sb_info *cifs_sb = CIFS_SB(sb); struct cifs_tcon *tcon = cifs_sb_master_tcon(cifs_sb); @@ -684,8 +684,22 @@ 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 (symlink) { + if (reparse_tag == IO_REPARSE_TAG_LX_SYMLINK) { + fattr->cf_mode |= S_IFLNK | cifs_sb->mnt_file_mode; + fattr->cf_dtype = DT_LNK; + } else if (reparse_tag == IO_REPARSE_TAG_LX_FIFO) { + fattr->cf_mode |= S_IFIFO | cifs_sb->mnt_file_mode; + fattr->cf_dtype = DT_FIFO; + } else if (reparse_tag == IO_REPARSE_TAG_AF_UNIX) { + fattr->cf_mode |= S_IFSOCK | cifs_sb->mnt_file_mode; + fattr->cf_dtype = DT_SOCK; + } else if (reparse_tag == IO_REPARSE_TAG_LX_CHR) { + fattr->cf_mode |= S_IFCHR | cifs_sb->mnt_file_mode; + fattr->cf_dtype = DT_CHR; + } else if (reparse_tag == IO_REPARSE_TAG_LX_BLK) { + fattr->cf_mode |= S_IFBLK | cifs_sb->mnt_file_mode; + fattr->cf_dtype = DT_BLK; + } else if (symlink) { /* TODO add more reparse tag checks */ fattr->cf_mode = S_IFLNK; fattr->cf_dtype = DT_LNK; } else if (fattr->cf_cifsattrs & ATTR_DIRECTORY) { @@ -740,8 +754,9 @@ cifs_get_file_info(struct file *filp) rc = server->ops->query_file_info(xid, tcon, &cfile->fid, &find_data); switch (rc) { case 0: + /* TODO: add support to query reparse tag */ cifs_all_info_to_fattr(&fattr, &find_data, inode->i_sb, false, - false); + false, 0 /* no reparse tag */); break; case -EREMOTE: cifs_create_dfs_fattr(&fattr, inode->i_sb); @@ -910,12 +925,13 @@ cifs_get_inode_info(struct inode **inode, struct cifs_sb_info *cifs_sb = CIFS_SB(sb); bool adjust_tz = false; struct cifs_fattr fattr = {0}; - bool symlink = false; + bool is_reparse_point = false; FILE_ALL_INFO *data = in_data; FILE_ALL_INFO *tmp_data = NULL; void *smb1_backup_rsp_buf = NULL; int rc = 0; int tmprc = 0; + __u32 reparse_tag = 0; tlink = cifs_sb_tlink(cifs_sb); if (IS_ERR(tlink)) @@ -938,8 +954,8 @@ cifs_get_inode_info(struct inode **inode, goto out; } rc = server->ops->query_path_info(xid, tcon, cifs_sb, - full_path, tmp_data, - &adjust_tz, &symlink); + full_path, tmp_data, + &adjust_tz, &is_reparse_point); data = tmp_data; } @@ -949,7 +965,19 @@ cifs_get_inode_info(struct inode **inode, switch (rc) { case 0: - cifs_all_info_to_fattr(&fattr, data, sb, adjust_tz, symlink); + /* + * If the file is a reparse point, it is more complicated + * since we have to check if its reparse tag matches a known + * special file type e.g. symlink or fifo or char etc. + */ + if ((le32_to_cpu(data->Attributes) & ATTR_REPARSE) && + server->ops->query_reparse_tag) { + rc = server->ops->query_reparse_tag(xid, tcon, cifs_sb, + full_path, &reparse_tag); + cifs_dbg(FYI, "reparse tag 0x%x\n", reparse_tag); + } + cifs_all_info_to_fattr(&fattr, data, sb, adjust_tz, + is_reparse_point, reparse_tag); break; case -EREMOTE: /* DFS link, no metadata available on this server */ |