objsec.h

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/*
 *  NSA Security-Enhanced Linux (SELinux) security module
 *
 *  This file contains the SELinux security data structures for kernel objects.
 *
 *  Author(s):  Stephen Smalley, <[email protected]>
 *      Chris Vance, <[email protected]>
 *      Wayne Salamon, <[email protected]>
 *      James Morris <[email protected]>
 *
 *  Copyright (C) 2001,2002 Networks Associates Technology, Inc.
 *  Copyright (C) 2003 Red Hat, Inc., James Morris <[email protected]>
 *
 *  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 */
    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_ */