Add the rt linux 4.1.3-rt3 as base

Import the rt linux 4.1.3-rt3 as OPNFV kvm base.

It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and
the base is:

commit 0917f823c59692d751951bf5ea699a2d1e2f26a2
Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date:   Sat Jul 25 12:13:34 2015 +0200

    Prepare v4.1.3-rt3

    Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>

We lose all the git history this way and it's not good. We
should apply another opnfv project repo in future.

Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423
Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com>

1 files changed, 80 insertions, 0 deletions

diff --git a/kernel/security/selinux/ss/conditional.h b/kernel/security/selinux/ss/conditional.h
new file mode 100644
index 000000000..4d1f87466
--- /dev/null
+++ b/kernel/security/selinux/ss/conditional.h
@@ -0,0 +1,80 @@
+/* Authors: Karl MacMillan <kmacmillan@tresys.com>
+ *          Frank Mayer <mayerf@tresys.com>
+ *
+ * Copyright (C) 2003 - 2004 Tresys Technology, LLC
+ *	This program is free software; you can redistribute it and/or modify
+ *  	it under the terms of the GNU General Public License as published by
+ *	the Free Software Foundation, version 2.
+ */
+
+#ifndef _CONDITIONAL_H_
+#define _CONDITIONAL_H_
+
+#include "avtab.h"
+#include "symtab.h"
+#include "policydb.h"
+#include "../include/conditional.h"
+
+#define COND_EXPR_MAXDEPTH 10
+
+/*
+ * A conditional expression is a list of operators and operands
+ * in reverse polish notation.
+ */
+struct cond_expr {
+#define COND_BOOL	1 /* plain bool */
+#define COND_NOT	2 /* !bool */
+#define COND_OR		3 /* bool || bool */
+#define COND_AND	4 /* bool && bool */
+#define COND_XOR	5 /* bool ^ bool */
+#define COND_EQ		6 /* bool == bool */
+#define COND_NEQ	7 /* bool != bool */
+#define COND_LAST	COND_NEQ
+	__u32 expr_type;
+	__u32 bool;
+	struct cond_expr *next;
+};
+
+/*
+ * Each cond_node contains a list of rules to be enabled/disabled
+ * depending on the current value of the conditional expression. This
+ * struct is for that list.
+ */
+struct cond_av_list {
+	struct avtab_node *node;
+	struct cond_av_list *next;
+};
+
+/*
+ * A cond node represents a conditional block in a policy. It
+ * contains a conditional expression, the current state of the expression,
+ * two lists of rules to enable/disable depending on the value of the
+ * expression (the true list corresponds to if and the false list corresponds
+ * to else)..
+ */
+struct cond_node {
+	int cur_state;
+	struct cond_expr *expr;
+	struct cond_av_list *true_list;
+	struct cond_av_list *false_list;
+	struct cond_node *next;
+};
+
+int cond_policydb_init(struct policydb *p);
+void cond_policydb_destroy(struct policydb *p);
+
+int cond_init_bool_indexes(struct policydb *p);
+int cond_destroy_bool(void *key, void *datum, void *p);
+
+int cond_index_bool(void *key, void *datum, void *datap);
+
+int cond_read_bool(struct policydb *p, struct hashtab *h, void *fp);
+int cond_read_list(struct policydb *p, void *fp);
+int cond_write_bool(void *key, void *datum, void *ptr);
+int cond_write_list(struct policydb *p, struct cond_node *list, void *fp);
+
+void cond_compute_av(struct avtab *ctab, struct avtab_key *key, struct av_decision *avd);
+
+int evaluate_cond_node(struct policydb *p, struct cond_node *node);
+
+#endif /* _CONDITIONAL_H_ */