1 files changed, 0 insertions, 126 deletions
diff --git a/ANDROID_3.4.5/security/selinux/ss/status.c b/ANDROID_3.4.5/security/selinux/ss/status.c
deleted file mode 100644
index d982365f..00000000
--- a/ANDROID_3.4.5/security/selinux/ss/status.c
+++ /dev/null
@@ -1,126 +0,0 @@
-/*
- * mmap based event notifications for SELinux
- *
- * Author: KaiGai Kohei <kaigai@ak.jp.nec.com>
- *
- * Copyright (C) 2010 NEC corporation
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2,
- * as published by the Free Software Foundation.
- */
-#include <linux/kernel.h>
-#include <linux/gfp.h>
-#include <linux/mm.h>
-#include <linux/mutex.h>
-#include "avc.h"
-#include "services.h"
-
-/*
- * The selinux_status_page shall be exposed to userspace applications
- * using mmap interface on /selinux/status.
- * It enables to notify applications a few events that will cause reset
- * of userspace access vector without context switching.
- *
- * The selinux_kernel_status structure on the head of status page is
- * protected from concurrent accesses using seqlock logic, so userspace
- * application should reference the status page according to the seqlock
- * logic.
- *
- * Typically, application checks status->sequence at the head of access
- * control routine. If it is odd-number, kernel is updating the status,
- * so please wait for a moment. If it is changed from the last sequence
- * number, it means something happen, so application will reset userspace
- * avc, if needed.
- * In most cases, application shall confirm the kernel status is not
- * changed without any system call invocations.
- */
-static struct page *selinux_status_page;
-static DEFINE_MUTEX(selinux_status_lock);
-
-/*
- * selinux_kernel_status_page
- *
- * It returns a reference to selinux_status_page. If the status page is
- * not allocated yet, it also tries to allocate it at the first time.
- */
-struct page *selinux_kernel_status_page(void)
-{
-	struct selinux_kernel_status   *status;
-	struct page		       *result = NULL;
-
-	mutex_lock(&selinux_status_lock);
-	if (!selinux_status_page) {
-		selinux_status_page = alloc_page(GFP_KERNEL|__GFP_ZERO);
-
-		if (selinux_status_page) {
-			status = page_address(selinux_status_page);
-
-			status->version = SELINUX_KERNEL_STATUS_VERSION;
-			status->sequence = 0;
-			status->enforcing = selinux_enforcing;
-			/*
-			 * NOTE: the next policyload event shall set
-			 * a positive value on the status->policyload,
-			 * although it may not be 1, but never zero.
-			 * So, application can know it was updated.
-			 */
-			status->policyload = 0;
-			status->deny_unknown = !security_get_allow_unknown();
-		}
-	}
-	result = selinux_status_page;
-	mutex_unlock(&selinux_status_lock);
-
-	return result;
-}
-
-/*
- * selinux_status_update_setenforce
- *
- * It updates status of the current enforcing/permissive mode.
- */
-void selinux_status_update_setenforce(int enforcing)
-{
-	struct selinux_kernel_status   *status;
-
-	mutex_lock(&selinux_status_lock);
-	if (selinux_status_page) {
-		status = page_address(selinux_status_page);
-
-		status->sequence++;
-		smp_wmb();
-
-		status->enforcing = enforcing;
-
-		smp_wmb();
-		status->sequence++;
-	}
-	mutex_unlock(&selinux_status_lock);
-}
-
-/*
- * selinux_status_update_policyload
- *
- * It updates status of the times of policy reloaded, and current
- * setting of deny_unknown.
- */
-void selinux_status_update_policyload(int seqno)
-{
-	struct selinux_kernel_status   *status;
-
-	mutex_lock(&selinux_status_lock);
-	if (selinux_status_page) {
-		status = page_address(selinux_status_page);
-
-		status->sequence++;
-		smp_wmb();
-
-		status->policyload = seqno;
-		status->deny_unknown = !security_get_allow_unknown();
-
-		smp_wmb();
-		status->sequence++;
-	}
-	mutex_unlock(&selinux_status_lock);
-}