commit 8feca68eed393d6203dc9d95ba0ac1fc2bfc9619
author Josh Gao <jmgao@google.com> Wed Aug 31 15:32:23 2016 -0700
committer Josh Gao <jmgao@google.com> Wed Aug 31 15:36:37 2016 -0700
tree c477397297c87a02bccc384b9238ee4d20778475
parent e522ca64f965065a173763890c82c344d22351ff

init: create /dev/urandom, /dev/random in first stage.

Create /dev/random and /dev/urandom in the first stage, so that when we
reexec, arc4random is available for libc initialization.

Bug: http://b/29622562
Change-Id: I5b2071539a17eec609faac91dc28b08eba5ff89b

init/init.cpp

diff --git a/init/init.cpp b/init/init.cpp
index 957527b..feaee0d 100644
--- a/init/init.cpp
+++ b/init/init.cpp
@@ -588,6 +588,8 @@
         mount("sysfs", "/sys", "sysfs", 0, NULL);
         mount("selinuxfs", "/sys/fs/selinux", "selinuxfs", 0, NULL);
         mknod("/dev/kmsg", S_IFCHR | 0600, makedev(1, 11));
+        mknod("/dev/random", S_IFCHR | 0666, makedev(1, 8));
+        mknod("/dev/urandom", S_IFCHR | 0666, makedev(1, 9));
         early_mount();
     }
 
@@ -638,6 +640,8 @@
     restorecon("/dev");
     restorecon("/dev/kmsg");
     restorecon("/dev/socket");
+    restorecon("/dev/random");
+    restorecon("/dev/urandom");
     restorecon("/dev/__properties__");
     restorecon("/property_contexts");
     restorecon_recursive("/sys");