1 files changed, 108 insertions, 0 deletions
diff --git a/source3/modules/vfs_fake_perms.c b/source3/modules/vfs_fake_perms.c
new file mode 100644
index 0000000..0089186
--- /dev/null
+++ b/source3/modules/vfs_fake_perms.c
@@ -0,0 +1,108 @@
+/* 
+ * 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 3 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, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "includes.h"
+#include "smbd/smbd.h"
+#include "system/filesys.h"
+#include "auth.h"
+
+#undef DBGC_CLASS
+#define DBGC_CLASS DBGC_VFS
+
+static int fake_perms_stat(vfs_handle_struct *handle,
+			   struct smb_filename *smb_fname)
+{
+	int ret;
+
+	ret = SMB_VFS_NEXT_STAT(handle, smb_fname);
+	if (ret != 0) {
+		return ret;
+	}
+
+	if (S_ISDIR(smb_fname->st.st_ex_mode)) {
+		smb_fname->st.st_ex_mode = S_IFDIR | S_IRWXU;
+	} else {
+		smb_fname->st.st_ex_mode = S_IRWXU;
+	}
+
+	if (handle->conn->session_info != NULL) {
+		struct security_unix_token *utok;
+
+		utok = handle->conn->session_info->unix_token;
+		smb_fname->st.st_ex_uid = utok->uid;
+		smb_fname->st.st_ex_gid = utok->gid;
+	} else {
+		/*
+		 * We have an artificial connection for dfs for example. It
+		 * sucks, but the current uid/gid is the best we have.
+		 */
+		smb_fname->st.st_ex_uid = geteuid();
+		smb_fname->st.st_ex_gid = getegid();
+	}
+
+	return ret;
+}
+
+static int fake_perms_fstat(vfs_handle_struct *handle, files_struct *fsp, SMB_STRUCT_STAT *sbuf)
+{
+	int ret;
+
+	ret = SMB_VFS_NEXT_FSTAT(handle, fsp, sbuf);
+	if (ret != 0) {
+		return ret;
+	}
+
+	if (S_ISDIR(sbuf->st_ex_mode)) {
+		sbuf->st_ex_mode = S_IFDIR | S_IRWXU;
+	} else {
+		sbuf->st_ex_mode = S_IRWXU;
+	}
+	if (handle->conn->session_info != NULL) {
+		struct security_unix_token *utok;
+
+		utok = handle->conn->session_info->unix_token;
+		sbuf->st_ex_uid = utok->uid;
+		sbuf->st_ex_gid = utok->gid;
+	} else {
+		/*
+		 * We have an artificial connection for dfs for example. It
+		 * sucks, but the current uid/gid is the best we have.
+		 */
+		sbuf->st_ex_uid = geteuid();
+		sbuf->st_ex_gid = getegid();
+	}
+
+	return ret;
+}
+
+static struct vfs_fn_pointers vfs_fake_perms_fns = {
+	.stat_fn = fake_perms_stat,
+	.fstat_fn = fake_perms_fstat
+};
+
+static_decl_vfs;
+NTSTATUS vfs_fake_perms_init(TALLOC_CTX *ctx)
+{
+	return smb_register_vfs(SMB_VFS_INTERFACE_VERSION, "fake_perms",
+				&vfs_fake_perms_fns);
+}