Initial import

[samba] / source / modules / vfs_fake_perms.c

diff --git a/source/modules/vfs_fake_perms.c b/source/modules/vfs_fake_perms.c
new file mode 100644 (file)
index 0000000..4d10ea5
--- /dev/null
+++ b/source/modules/vfs_fake_perms.c
@@ -0,0 +1,79 @@
+/* 
+ * Fake Perms VFS module.  Implements passthrough operation of all VFS
+ * calls to disk functions, except for file permissions, which are now
+ * mode 0700 for the current uid/gid.
+ *
+ * Copyright (C) Tim Potter, 1999-2000
+ * Copyright (C) Alexander Bokovoy, 2002
+ * Copyright (C) Andrew Bartlett, 2002
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *  
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *  
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include "includes.h"
+
+extern struct current_user current_user;
+
+#undef DBGC_CLASS
+#define DBGC_CLASS DBGC_VFS
+
+static int fake_perms_stat(vfs_handle_struct *handle, connection_struct *conn, const char *fname, SMB_STRUCT_STAT *sbuf)
+{
+       int ret = -1;
+
+       ret = SMB_VFS_NEXT_STAT(handle, conn, fname, sbuf);
+       if (ret == 0) {
+               if (S_ISDIR(sbuf->st_mode)) {
+                       sbuf->st_mode = S_IFDIR | S_IRWXU;
+               } else {
+                       sbuf->st_mode = S_IRWXU;
+               }
+               sbuf->st_uid = current_user.uid;
+               sbuf->st_gid = current_user.gid;
+       }
+
+       return ret;
+}
+
+static int fake_perms_fstat(vfs_handle_struct *handle, files_struct *fsp, int fd, SMB_STRUCT_STAT *sbuf)
+{
+       int ret = -1;
+
+       ret = SMB_VFS_NEXT_FSTAT(handle, fsp, fd, sbuf);
+       if (ret == 0) {
+               if (S_ISDIR(sbuf->st_mode)) {
+                       sbuf->st_mode = S_IFDIR | S_IRWXU;
+               } else {
+                       sbuf->st_mode = S_IRWXU;
+               }
+               sbuf->st_uid = current_user.uid;
+               sbuf->st_gid = current_user.gid;
+       }
+       return ret;
+}
+
+/* VFS operations structure */
+
+static vfs_op_tuple fake_perms_ops[] = {       
+       {SMB_VFS_OP(fake_perms_stat),   SMB_VFS_OP_STAT,        SMB_VFS_LAYER_TRANSPARENT},
+       {SMB_VFS_OP(fake_perms_fstat),  SMB_VFS_OP_FSTAT,       SMB_VFS_LAYER_TRANSPARENT},
+
+       {SMB_VFS_OP(NULL),              SMB_VFS_OP_NOOP,        SMB_VFS_LAYER_NOOP}
+};
+
+NTSTATUS vfs_fake_perms_init(void)
+{
+       return smb_register_vfs(SMB_VFS_INTERFACE_VERSION, "fake_perms", fake_perms_ops);
+}