Initial KLEE checkin.

 - Lots more tweaks, documentation, and web page content is needed,
   but this should compile & work on OS X & Linux.


git-svn-id: https://llvm.org/svn/llvm-project/klee/trunk@72205 91177308-0d34-0410-b5e6-96231b3b80d8

1 files changed, 80 insertions, 0 deletions

diff --git a/runtime/POSIX/selinux.c b/runtime/POSIX/selinux.c
new file mode 100644
index 00000000..38acba6c
--- /dev/null
+++ b/runtime/POSIX/selinux.c
@@ -0,0 +1,80 @@
+//===-- selinux.c ---------------------------------------------------------===//
+//
+//                     The KLEE Symbolic Virtual Machine
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+/* Very basic SELinux support */
+
+#include "klee/Config/config.h"
+
+#ifdef HAVE_SELINUX_SELINUX_H
+
+#include "klee/klee.h"
+
+#include <selinux/selinux.h>
+#include <stdlib.h>
+#include <errno.h>
+
+/* for now, assume we run on an SELinux machine */
+int exe_selinux = 1;
+
+/* NULL is the default policy behavior */
+security_context_t create_con = NULL;
+
+
+int is_selinux_enabled() {
+  return exe_selinux;
+}
+
+
+/***/
+
+int getfscreatecon(security_context_t *context) {
+  *context = create_con;
+  return 0;
+}
+
+
+int setfscreatecon(security_context_t context) {
+  if (context == NULL) {
+    create_con = context;
+    return 0;
+  }
+
+  /* on my machine, setfscreatecon seems to incorrectly accept one
+     char strings.. Also, make sure mcstrans > 0.2.8 for replay 
+     (important bug fixed) */
+  if (context[0] != '\0' && context[1] == '\0')
+    klee_silent_exit(1);
+
+  return -1;
+}
+
+/***/
+
+int setfilecon(const char *path, security_context_t con) {
+  if (con)
+    return 0;
+  
+  errno = ENOSPC;
+  return -1;  
+}
+
+int lsetfilecon(const char *path, security_context_t con) {
+  return setfilecon(path, con);
+}
+
+int fsetfilecon(int fd, security_context_t con) {
+  return setfilecon("", con);
+}
+
+/***/
+
+void freecon(security_context_t con) {}
+void freeconary(security_context_t *con) {}
+
+#endif