diff options
Diffstat (limited to 'fs/udf/inode.c')
| -rw-r--r-- | fs/udf/inode.c | 31 |
1 files changed, 27 insertions, 4 deletions
diff --git a/fs/udf/inode.c b/fs/udf/inode.c index 54eee39f2698..ea80036d7897 100644 --- a/fs/udf/inode.c +++ b/fs/udf/inode.c @@ -45,6 +45,13 @@ #define EXTENT_MERGE_SIZE 5 +#define FE_MAPPED_PERMS (FE_PERM_U_READ | FE_PERM_U_WRITE | FE_PERM_U_EXEC | \ + FE_PERM_G_READ | FE_PERM_G_WRITE | FE_PERM_G_EXEC | \ + FE_PERM_O_READ | FE_PERM_O_WRITE | FE_PERM_O_EXEC) + +#define FE_DELETE_PERMS (FE_PERM_U_DELETE | FE_PERM_G_DELETE | \ + FE_PERM_O_DELETE) + static umode_t udf_convert_permissions(struct fileEntry *); static int udf_update_inode(struct inode *, int); static int udf_sync_inode(struct inode *inode); @@ -1458,6 +1465,8 @@ reread: else inode->i_mode = udf_convert_permissions(fe); inode->i_mode &= ~sbi->s_umask; + iinfo->i_extraPerms = le32_to_cpu(fe->permissions) & ~FE_MAPPED_PERMS; + read_unlock(&sbi->s_cred_lock); link_count = le16_to_cpu(fe->fileLinkCount); @@ -1631,6 +1640,23 @@ static umode_t udf_convert_permissions(struct fileEntry *fe) return mode; } +void udf_update_extra_perms(struct inode *inode, umode_t mode) +{ + struct udf_inode_info *iinfo = UDF_I(inode); + + /* + * UDF 2.01 sec. 3.3.3.3 Note 2: + * In Unix, delete permission tracks write + */ + iinfo->i_extraPerms &= ~FE_DELETE_PERMS; + if (mode & 0200) + iinfo->i_extraPerms |= FE_PERM_U_DELETE; + if (mode & 0020) + iinfo->i_extraPerms |= FE_PERM_G_DELETE; + if (mode & 0002) + iinfo->i_extraPerms |= FE_PERM_O_DELETE; +} + int udf_write_inode(struct inode *inode, struct writeback_control *wbc) { return udf_update_inode(inode, wbc->sync_mode == WB_SYNC_ALL); @@ -1703,10 +1729,7 @@ static int udf_update_inode(struct inode *inode, int do_sync) ((inode->i_mode & 0070) << 2) | ((inode->i_mode & 0700) << 4); - udfperms |= (le32_to_cpu(fe->permissions) & - (FE_PERM_O_DELETE | FE_PERM_O_CHATTR | - FE_PERM_G_DELETE | FE_PERM_G_CHATTR | - FE_PERM_U_DELETE | FE_PERM_U_CHATTR)); + udfperms |= iinfo->i_extraPerms; fe->permissions = cpu_to_le32(udfperms); if (S_ISDIR(inode->i_mode) && inode->i_nlink > 0) |