root/security/selinux/include/objsec.h

INCLUDED FROM

/*
 *  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 initialized;      /* initialization flag */
        unsigned char flags;            /* which mount options were specified */
        unsigned char proc;             /* proc fs */
        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 bprm_security_struct {
        u32 sid;                /* SID for transformed process */
        unsigned char set;

        /*
         * unsafe is used to share failure information from bprm_apply_creds()
         * to bprm_post_apply_creds().
         */
        char unsafe;
};

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_ */