/*
   *  NSA Security-Enhanced Linux (SELinux) security module
   *
   *  This file contains the SELinux security data structures for kernel objects.
   *
   *  Author(s):  Stephen Smalley, <sds@epoch.ncsc.mil>

   *		Chris Vance, <cvance@nai.com>
   *		Wayne Salamon, <wsalamon@nai.com>
   *		James Morris <jmorris@redhat.com>

   *
   *  Copyright (C) 2001,2002 Networks Associates Technology, Inc.
   *  Copyright (C) 2003 Red Hat, Inc., James Morris <jmorris@redhat.com>
   *
   *	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.

   */
  #ifndef _SELINUX_OBJSEC_H_
  #define _SELINUX_OBJSEC_H_
  
  #include <linux/list.h>
  #include <linux/sched.h>
  #include <linux/fs.h>
  #include <linux/binfmts.h>
  #include <linux/in.h>

  #include <linux/spinlock.h>

  #include "flask.h"
  #include "avc.h"
  
  struct task_security_struct {

  	u32 osid;		/* SID prior to last execve */
  	u32 sid;		/* current SID */
  	u32 exec_sid;		/* exec SID */
  	u32 create_sid;		/* fscreate SID */
  	u32 keycreate_sid;	/* keycreate SID */
  	u32 sockcreate_sid;	/* fscreate SID */

  };
  
  struct inode_security_struct {

  	struct inode *inode;	/* back pointer to inode object */
  	struct list_head list;	/* list of inode_security_struct */
  	u32 task_sid;		/* SID of creating task */
  	u32 sid;		/* SID of this object */
  	u16 sclass;		/* security class of this object */
  	unsigned char initialized;	/* initialization flag */

  	struct mutex lock;

  };
  
  struct file_security_struct {

  	u32 sid;		/* SID of open file description */
  	u32 fown_sid;		/* SID of file owner (for SIGIO) */
  	u32 isid;		/* SID of inode at the time of file open */
  	u32 pseqno;		/* Policy seqno at the time of file open */

  };
  
  struct superblock_security_struct {

  	struct super_block *sb;		/* back pointer to sb object */
  	struct list_head list;		/* list of superblock_security_struct */

  	u32 sid;			/* SID of file system superblock */

  	u32 def_sid;			/* default SID for labeling */

  	u32 mntpoint_sid;		/* SECURITY_FS_USE_MNTPOINT context for files */

  	unsigned int behavior;		/* labeling behavior */

  	unsigned char flags;		/* which mount options were specified */

  	struct mutex lock;

  	struct list_head isec_head;
  	spinlock_t isec_lock;
  };
  
  struct msg_security_struct {

  	u32 sid;	/* SID of message */

  };
  
  struct ipc_security_struct {

  	u16 sclass;	/* security class of this object */

  	u32 sid;	/* SID of IPC resource */

  };

  struct netif_security_struct {

  	int ifindex;			/* device index */
  	u32 sid;			/* SID for this interface */

  };

  struct netnode_security_struct {
  	union {
  		__be32 ipv4;		/* IPv4 node address */
  		struct in6_addr ipv6;	/* IPv6 node address */
  	} addr;
  	u32 sid;			/* SID for this node */
  	u16 family;			/* address family */
  };

  struct netport_security_struct {
  	u32 sid;			/* SID for this node */
  	u16 port;			/* port number */
  	u8 protocol;			/* transport protocol */
  };

  struct sk_security_struct {

  #ifdef CONFIG_NETLABEL

  	enum {				/* NetLabel state */
  		NLBL_UNSET = 0,
  		NLBL_REQUIRE,
  		NLBL_LABELED,

  		NLBL_REQSKB,

  		NLBL_CONNLABELED,

  	} nlbl_state;

  	struct netlbl_lsm_secattr *nlbl_secattr; /* NetLabel sec attributes */

  #endif

  	u32 sid;			/* SID of this object */
  	u32 peer_sid;			/* SID of peer */
  	u16 sclass;			/* sock security class */

  };

  struct key_security_struct {

  	u32 sid;	/* SID of key */

  };

  extern unsigned int selinux_checkreqprot;
  
  #endif /* _SELINUX_OBJSEC_H_ */