169 lines
4.3 KiB
C
169 lines
4.3 KiB
C
/*
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* NSA Security-Enhanced Linux (SELinux) security module
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*
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* This file contains the SELinux security data structures for kernel objects.
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*
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* Author(s): Stephen Smalley, <sds@tycho.nsa.gov>
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* Chris Vance, <cvance@nai.com>
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* Wayne Salamon, <wsalamon@nai.com>
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* James Morris <jmorris@redhat.com>
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*
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* Copyright (C) 2001,2002 Networks Associates Technology, Inc.
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* Copyright (C) 2003 Red Hat, Inc., James Morris <jmorris@redhat.com>
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* Copyright (C) 2016 Mellanox Technologies
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2,
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* as published by the Free Software Foundation.
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*/
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#ifndef _SELINUX_OBJSEC_H_
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#define _SELINUX_OBJSEC_H_
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#include <linux/list.h>
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#include <linux/sched.h>
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#include <linux/fs.h>
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#include <linux/binfmts.h>
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#include <linux/in.h>
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#include <linux/spinlock.h>
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#include <net/net_namespace.h>
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#include "flask.h"
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#include "avc.h"
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struct task_security_struct {
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u32 osid; /* SID prior to last execve */
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u32 sid; /* current SID */
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u32 exec_sid; /* exec SID */
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u32 create_sid; /* fscreate SID */
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u32 keycreate_sid; /* keycreate SID */
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u32 sockcreate_sid; /* fscreate SID */
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#ifdef CONFIG_KDP_CRED
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void *bp_cred;
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#endif
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};
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/*
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* get the subjective security ID of the current task
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*/
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static inline u32 current_sid(void)
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{
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const struct task_security_struct *tsec = current_security();
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return tsec->sid;
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}
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enum label_initialized {
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LABEL_INVALID, /* invalid or not initialized */
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LABEL_INITIALIZED, /* initialized */
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LABEL_PENDING
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};
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struct inode_security_struct {
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struct inode *inode; /* back pointer to inode object */
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union {
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struct list_head list; /* list of inode_security_struct */
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struct rcu_head rcu; /* for freeing the inode_security_struct */
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};
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u32 task_sid; /* SID of creating task */
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u32 sid; /* SID of this object */
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u16 sclass; /* security class of this object */
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unsigned char initialized; /* initialization flag */
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spinlock_t lock;
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};
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struct file_security_struct {
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u32 sid; /* SID of open file description */
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u32 fown_sid; /* SID of file owner (for SIGIO) */
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u32 isid; /* SID of inode at the time of file open */
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u32 pseqno; /* Policy seqno at the time of file open */
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};
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struct superblock_security_struct {
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struct super_block *sb; /* back pointer to sb object */
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u32 sid; /* SID of file system superblock */
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u32 def_sid; /* default SID for labeling */
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u32 mntpoint_sid; /* SECURITY_FS_USE_MNTPOINT context for files */
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unsigned short behavior; /* labeling behavior */
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unsigned short flags; /* which mount options were specified */
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struct mutex lock;
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struct list_head isec_head;
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spinlock_t isec_lock;
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};
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struct msg_security_struct {
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u32 sid; /* SID of message */
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};
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struct ipc_security_struct {
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u16 sclass; /* security class of this object */
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u32 sid; /* SID of IPC resource */
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};
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struct netif_security_struct {
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struct net *ns; /* network namespace */
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int ifindex; /* device index */
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u32 sid; /* SID for this interface */
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};
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struct netnode_security_struct {
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union {
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__be32 ipv4; /* IPv4 node address */
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struct in6_addr ipv6; /* IPv6 node address */
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} addr;
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u32 sid; /* SID for this node */
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u16 family; /* address family */
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};
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struct netport_security_struct {
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u32 sid; /* SID for this node */
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u16 port; /* port number */
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u8 protocol; /* transport protocol */
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};
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struct sk_security_struct {
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#ifdef CONFIG_NETLABEL
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enum { /* NetLabel state */
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NLBL_UNSET = 0,
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NLBL_REQUIRE,
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NLBL_LABELED,
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NLBL_REQSKB,
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NLBL_CONNLABELED,
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} nlbl_state;
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struct netlbl_lsm_secattr *nlbl_secattr; /* NetLabel sec attributes */
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#endif
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u32 sid; /* SID of this object */
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u32 peer_sid; /* SID of peer */
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u16 sclass; /* sock security class */
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enum { /* SCTP association state */
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SCTP_ASSOC_UNSET = 0,
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SCTP_ASSOC_SET,
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} sctp_assoc_state;
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};
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struct tun_security_struct {
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u32 sid; /* SID for the tun device sockets */
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};
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struct key_security_struct {
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u32 sid; /* SID of key */
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};
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struct ib_security_struct {
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u32 sid; /* SID of the queue pair or MAD agent */
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};
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struct pkey_security_struct {
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u64 subnet_prefix; /* Port subnet prefix */
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u16 pkey; /* PKey number */
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u32 sid; /* SID of pkey */
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};
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struct bpf_security_struct {
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u32 sid; /* SID of bpf obj creator */
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};
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struct perf_event_security_struct {
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u32 sid; /* SID of perf_event obj creator */
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};
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#endif /* _SELINUX_OBJSEC_H_ */
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