s3: convert unix_mode to take an smb_filename

3 files changed, 49 insertions, 18 deletions

diff --git a/source3/smbd/dosmode.c b/source3/smbd/dosmode.c
index 9d44eeec7d..9bd097c0bb 100644
--- a/source3/smbd/dosmode.c
+++ b/source3/smbd/dosmode.c
@@ -64,7 +64,8 @@ static int set_link_read_only_flag(const SMB_STRUCT_STAT *const sbuf)
          }
 ****************************************************************************/
 
-mode_t unix_mode(connection_struct *conn, int dosmode, const char *fname,
+mode_t unix_mode(connection_struct *conn, int dosmode,
+		 const struct smb_filename *smb_fname,
 		 const char *inherit_from_dir)
 {
 	mode_t result = (S_IRUSR | S_IRGRP | S_IROTH | S_IWUSR | S_IWGRP | S_IWOTH);
@@ -75,23 +76,39 @@ mode_t unix_mode(connection_struct *conn, int dosmode, const char *fname,
 		result &= ~(S_IWUSR | S_IWGRP | S_IWOTH);
 	}
 
-	if (fname && (inherit_from_dir != NULL)
-	    && lp_inherit_perms(SNUM(conn))) {
-		SMB_STRUCT_STAT sbuf;
+	if ((inherit_from_dir != NULL) && lp_inherit_perms(SNUM(conn))) {
+		struct smb_filename *smb_fname_parent = NULL;
+		NTSTATUS status;
 
-		DEBUG(2, ("unix_mode(%s) inheriting from %s\n", fname,
+		DEBUG(2, ("unix_mode(%s) inheriting from %s\n",
+			  smb_fname_str_dbg(smb_fname),
 			  inherit_from_dir));
-		if (vfs_stat_smb_fname(conn, inherit_from_dir, &sbuf) != 0) {
-			DEBUG(4,("unix_mode(%s) failed, [dir %s]: %s\n", fname,
+
+		status = create_synthetic_smb_fname(talloc_tos(),
+						    inherit_from_dir, NULL,
+						    NULL, &smb_fname_parent);
+		if (!NT_STATUS_IS_OK(status)) {
+			DEBUG(1,("unix_mode(%s) failed, [dir %s]: %s\n",
+				 smb_fname_str_dbg(smb_fname),
+				 inherit_from_dir, nt_errstr(status)));
+			return(0);
+		}
+
+		if (SMB_VFS_STAT(conn, smb_fname_parent) != 0) {
+			DEBUG(4,("unix_mode(%s) failed, [dir %s]: %s\n",
+				 smb_fname_str_dbg(smb_fname),
 				 inherit_from_dir, strerror(errno)));
+			TALLOC_FREE(smb_fname_parent);
 			return(0);      /* *** shouldn't happen! *** */
 		}
 
 		/* Save for later - but explicitly remove setuid bit for safety. */
-		dir_mode = sbuf.st_ex_mode & ~S_ISUID;
-		DEBUG(2,("unix_mode(%s) inherit mode %o\n",fname,(int)dir_mode));
+		dir_mode = smb_fname_parent->st.st_ex_mode & ~S_ISUID;
+		DEBUG(2,("unix_mode(%s) inherit mode %o\n",
+			 smb_fname_str_dbg(smb_fname), (int)dir_mode));
 		/* Clear "result" */
 		result = 0;
+		TALLOC_FREE(smb_fname_parent);
 	} 
 
 	if (IS_DOS_DIR(dosmode)) {
@@ -132,7 +149,8 @@ mode_t unix_mode(connection_struct *conn, int dosmode, const char *fname,
 		}
 	}
 
-	DEBUG(3,("unix_mode(%s) returning 0%o\n",fname,(int)result ));
+	DEBUG(3,("unix_mode(%s) returning 0%o\n", smb_fname_str_dbg(smb_fname),
+		 (int)result));
 	return(result);
 }
 
@@ -635,7 +653,7 @@ int file_set_dosmode(connection_struct *conn, struct smb_filename *smb_fname,
 		return 0;
 	}
 
-	unixmode = unix_mode(conn,dosmode,fname, parent_dir);
+	unixmode = unix_mode(conn, dosmode, smb_fname, parent_dir);
 
 	/* preserve the s bits */
 	mask |= (S_ISUID | S_ISGID);
diff --git a/source3/smbd/open.c b/source3/smbd/open.c
index e93485b3d8..a58cffa257 100644
--- a/source3/smbd/open.c
+++ b/source3/smbd/open.c
@@ -1513,8 +1513,8 @@ static NTSTATUS open_file_ntcreate(connection_struct *conn,
 	} else {
 		/* We add aARCH to this as this mode is only used if the file is
 		 * created new. */
-		unx_mode = unix_mode(conn, new_dos_attributes | aARCH, fname,
-				     parent_dir);
+		unx_mode = unix_mode(conn, new_dos_attributes | aARCH,
+				     smb_fname, parent_dir);
 	}
 
 	DEBUG(10, ("open_file_ntcreate: fname=%s, dos_attrs=0x%x "
@@ -2362,7 +2362,7 @@ static NTSTATUS mkdir_internal(connection_struct *conn,
 		posix_open = true;
 		mode = (mode_t)(file_attributes & ~FILE_FLAG_POSIX_SEMANTICS);
 	} else {
-		mode = unix_mode(conn, aDIR, smb_dname->base_name, parent_dir);
+		mode = unix_mode(conn, aDIR, smb_dname, parent_dir);
 	}
 
 	if (SMB_VFS_MKDIR(conn, smb_dname->base_name, mode) != 0) {
diff --git a/source3/smbd/posix_acls.c b/source3/smbd/posix_acls.c
index 627ca2e171..0c7f4b7bb7 100644
--- a/source3/smbd/posix_acls.c
+++ b/source3/smbd/posix_acls.c
@@ -2166,10 +2166,23 @@ static mode_t create_default_mode(files_struct *fsp, bool interitable_mode)
 	int snum = SNUM(fsp->conn);
 	mode_t and_bits = (mode_t)0;
 	mode_t or_bits = (mode_t)0;
-	mode_t mode = interitable_mode
-		? unix_mode( fsp->conn, FILE_ATTRIBUTE_ARCHIVE, fsp->fsp_name,
-			     NULL )
-		: S_IRUSR;
+	mode_t mode;
+
+	if (interitable_mode) {
+		struct smb_filename *smb_fname = NULL;
+		NTSTATUS status;
+
+		status = create_synthetic_smb_fname_split(talloc_tos(),
+							  fsp->fsp_name, NULL,
+							  &smb_fname);
+		if (!NT_STATUS_IS_OK(status)) {
+			return 0;
+		}
+		mode = unix_mode(fsp->conn, FILE_ATTRIBUTE_ARCHIVE, smb_fname,
+				 NULL);
+	} else {
+		mode = S_IRUSR;
+	}
 
 	if (fsp->is_directory)
 		mode |= (S_IWUSR|S_IXUSR);