init: call restorecon on /sys

Not all files on /sys are not getting labeled properly. Fix them.

Change-Id: I9dcff76354e7f50d41f1b6e702836cfbbc149278

3 files changed, 17 insertions, 0 deletions

diff --git a/init/init.c b/init/init.c
index 294c2c4..b699be0 100644
--- a/init/init.c
+++ b/init/init.c
@@ -945,6 +945,7 @@ int main(int argc, char **argv)
     restorecon("/dev");
     restorecon("/dev/socket");
     restorecon("/dev/__properties__");
+    restorecon_recursive("/sys");
 
     is_charger = !strcmp(bootmode, "charger");
 
diff --git a/init/util.c b/init/util.c
index 1820aa9..154bb2d 100755..100644
--- a/init/util.c
+++ b/init/util.c
@@ -22,6 +22,7 @@
 #include <ctype.h>
 #include <errno.h>
 #include <time.h>
+#include <ftw.h>
 
 #include <selinux/label.h>
 
@@ -519,3 +520,17 @@ int restorecon(const char *pathname)
     freecon(secontext);
     return 0;
 }
+
+static int nftw_restorecon(const char* filename, const struct stat* statptr,
+    int fileflags, struct FTW* pftw)
+{
+    restorecon(filename);
+    return 0;
+}
+
+int restorecon_recursive(const char* pathname)
+{
+    int fd_limit = 20;
+    int flags = FTW_DEPTH | FTW_MOUNT | FTW_PHYS;
+    return nftw(pathname, nftw_restorecon, fd_limit, flags);
+}
diff --git a/init/util.h b/init/util.h
index 39d6f52..04b8129 100644
--- a/init/util.h
+++ b/init/util.h
@@ -41,4 +41,5 @@ void get_hardware_name(char *hardware, unsigned int *revision);
 void import_kernel_cmdline(int in_qemu, void (*import_kernel_nv)(char *name, int in_qemu));
 int make_dir(const char *path, mode_t mode);
 int restorecon(const char *pathname);
+int restorecon_recursive(const char *pathname);
 #endif