Set the SELinux security label on new directories.
Automatically set the SELinux security label on directories created
by init.rc. This avoids the need to separately call restorecon on
each such directory from the init.rc file. Also restorecon /dev
and /dev/socket after initial policy load so that they are labeled
correctly before any other dev nodes or sockets are created.
Change-Id: If6af6c4887cdead949737cebdd673957e9273ead
Signed-off-by: Stephen Smalley <sds@tycho.nsa.gov>
diff --git a/init/util.c b/init/util.c
index 3a4b10b..8922de5 100755
--- a/init/util.c
+++ b/init/util.c
@@ -290,12 +290,12 @@
memcpy(buf, pathname, width);
buf[width] = 0;
if (stat(buf, &info) != 0) {
- ret = mkdir(buf, mode);
+ ret = make_dir(buf, mode);
if (ret && errno != EEXIST)
return ret;
}
}
- ret = mkdir(pathname, mode);
+ ret = make_dir(pathname, mode);
if (ret && errno != EEXIST)
return ret;
return 0;
@@ -451,3 +451,52 @@
ptr = x;
}
}
+
+int make_dir(const char *path, mode_t mode)
+{
+ int rc;
+
+#ifdef HAVE_SELINUX
+ char *secontext = NULL;
+
+ if (sehandle) {
+ selabel_lookup(sehandle, &secontext, path, mode);
+ setfscreatecon(secontext);
+ }
+#endif
+
+ rc = mkdir(path, mode);
+
+#ifdef HAVE_SELINUX
+ if (secontext) {
+ int save_errno = errno;
+ freecon(secontext);
+ setfscreatecon(NULL);
+ errno = save_errno;
+ }
+#endif
+ return rc;
+}
+
+int restorecon(const char *pathname)
+{
+#ifdef HAVE_SELINUX
+ char *secontext = NULL;
+ struct stat sb;
+ int i;
+
+ if (is_selinux_enabled() <= 0 || !sehandle)
+ return 0;
+
+ if (lstat(pathname, &sb) < 0)
+ return -errno;
+ if (selabel_lookup(sehandle, &secontext, pathname, sb.st_mode) < 0)
+ return -errno;
+ if (lsetfilecon(pathname, secontext) < 0) {
+ freecon(secontext);
+ return -errno;
+ }
+ freecon(secontext);
+#endif
+ return 0;
+}