security.h 43.5 KB
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/*
 * Linux Security plug
 *
 * Copyright (C) 2001 WireX Communications, Inc <chris@wirex.com>
 * Copyright (C) 2001 Greg Kroah-Hartman <greg@kroah.com>
 * Copyright (C) 2001 Networks Associates Technology, Inc <ssmalley@nai.com>
 * Copyright (C) 2001 James Morris <jmorris@intercode.com.au>
 * Copyright (C) 2001 Silicon Graphics, Inc. (Trust Technology Group)
 *
 *	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; either version 2 of the License, or
 *	(at your option) any later version.
 *
 *	Due to this file being licensed under the GPL there is controversy over
 *	whether this permits you to write a module that #includes this file
 *	without placing your module under the GPL.  Please consult a lawyer for
 *	advice before doing this.
 *
 */

#ifndef __LINUX_SECURITY_H
#define __LINUX_SECURITY_H

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#include <linux/key.h>
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#include <linux/capability.h>
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#include <linux/slab.h>
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#include <linux/err.h>
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#include <linux/string.h>
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#include <linux/mm.h>
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struct linux_binprm;
struct cred;
struct rlimit;
struct siginfo;
struct sem_array;
struct sembuf;
struct kern_ipc_perm;
struct audit_context;
struct super_block;
struct inode;
struct dentry;
struct file;
struct vfsmount;
struct path;
struct qstr;
struct iattr;
struct fown_struct;
struct file_operations;
struct shmid_kernel;
struct msg_msg;
struct msg_queue;
struct xattr;
struct xfrm_sec_ctx;
struct mm_struct;
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/* If capable should audit the security request */
#define SECURITY_CAP_NOAUDIT 0
#define SECURITY_CAP_AUDIT 1

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/* LSM Agnostic defines for sb_set_mnt_opts */
#define SECURITY_LSM_NATIVE_LABELS	1

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struct ctl_table;
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struct audit_krule;
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struct user_namespace;
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struct timezone;
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/* These functions are in security/commoncap.c */
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extern int cap_capable(const struct cred *cred, struct user_namespace *ns,
		       int cap, int audit);
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extern int cap_settime(const struct timespec *ts, const struct timezone *tz);
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extern int cap_ptrace_access_check(struct task_struct *child, unsigned int mode);
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extern int cap_ptrace_traceme(struct task_struct *parent);
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extern int cap_capget(struct task_struct *target, kernel_cap_t *effective, kernel_cap_t *inheritable, kernel_cap_t *permitted);
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extern int cap_capset(struct cred *new, const struct cred *old,
		      const kernel_cap_t *effective,
		      const kernel_cap_t *inheritable,
		      const kernel_cap_t *permitted);
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extern int cap_bprm_set_creds(struct linux_binprm *bprm);
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extern int cap_bprm_secureexec(struct linux_binprm *bprm);
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extern int cap_inode_setxattr(struct dentry *dentry, const char *name,
			      const void *value, size_t size, int flags);
extern int cap_inode_removexattr(struct dentry *dentry, const char *name);
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extern int cap_inode_need_killpriv(struct dentry *dentry);
extern int cap_inode_killpriv(struct dentry *dentry);
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extern int cap_mmap_addr(unsigned long addr);
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extern int cap_mmap_file(struct file *file, unsigned long reqprot,
			 unsigned long prot, unsigned long flags);
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extern int cap_task_fix_setuid(struct cred *new, const struct cred *old, int flags);
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extern int cap_task_prctl(int option, unsigned long arg2, unsigned long arg3,
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			  unsigned long arg4, unsigned long arg5);
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extern int cap_task_setscheduler(struct task_struct *p);
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extern int cap_task_setioprio(struct task_struct *p, int ioprio);
extern int cap_task_setnice(struct task_struct *p, int nice);
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extern int cap_vm_enough_memory(struct mm_struct *mm, long pages);
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struct msghdr;
struct sk_buff;
struct sock;
struct sockaddr;
struct socket;
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struct flowi;
struct dst_entry;
struct xfrm_selector;
struct xfrm_policy;
struct xfrm_state;
struct xfrm_user_sec_ctx;
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struct seq_file;
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#ifdef CONFIG_MMU
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extern unsigned long mmap_min_addr;
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extern unsigned long dac_mmap_min_addr;
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#else
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#define mmap_min_addr		0UL
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#define dac_mmap_min_addr	0UL
#endif

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/*
 * Values used in the task_security_ops calls
 */
/* setuid or setgid, id0 == uid or gid */
#define LSM_SETID_ID	1

/* setreuid or setregid, id0 == real, id1 == eff */
#define LSM_SETID_RE	2

/* setresuid or setresgid, id0 == real, id1 == eff, uid2 == saved */
#define LSM_SETID_RES	4

/* setfsuid or setfsgid, id0 == fsuid or fsgid */
#define LSM_SETID_FS	8

/* forward declares to avoid warnings */
struct sched_param;
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struct request_sock;
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/* bprm->unsafe reasons */
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#define LSM_UNSAFE_SHARE	1
#define LSM_UNSAFE_PTRACE	2
#define LSM_UNSAFE_PTRACE_CAP	4
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#define LSM_UNSAFE_NO_NEW_PRIVS	8
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#ifdef CONFIG_MMU
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extern int mmap_min_addr_handler(struct ctl_table *table, int write,
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				 void __user *buffer, size_t *lenp, loff_t *ppos);
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#endif
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/* security_inode_init_security callback function to write xattrs */
typedef int (*initxattrs) (struct inode *inode,
			   const struct xattr *xattr_array, void *fs_data);

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#ifdef CONFIG_SECURITY

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struct security_mnt_opts {
	char **mnt_opts;
	int *mnt_opts_flags;
	int num_mnt_opts;
};

static inline void security_init_mnt_opts(struct security_mnt_opts *opts)
{
	opts->mnt_opts = NULL;
	opts->mnt_opts_flags = NULL;
	opts->num_mnt_opts = 0;
}

static inline void security_free_mnt_opts(struct security_mnt_opts *opts)
{
	int i;
	if (opts->mnt_opts)
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		for (i = 0; i < opts->num_mnt_opts; i++)
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			kfree(opts->mnt_opts[i]);
	kfree(opts->mnt_opts);
	opts->mnt_opts = NULL;
	kfree(opts->mnt_opts_flags);
	opts->mnt_opts_flags = NULL;
	opts->num_mnt_opts = 0;
}

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/* prototypes */
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extern int security_init(void);
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/* Security operations */
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int security_binder_set_context_mgr(struct task_struct *mgr);
int security_binder_transaction(struct task_struct *from,
				struct task_struct *to);
int security_binder_transfer_binder(struct task_struct *from,
				    struct task_struct *to);
int security_binder_transfer_file(struct task_struct *from,
				  struct task_struct *to, struct file *file);
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int security_ptrace_access_check(struct task_struct *child, unsigned int mode);
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int security_ptrace_traceme(struct task_struct *parent);
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int security_capget(struct task_struct *target,
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		    kernel_cap_t *effective,
		    kernel_cap_t *inheritable,
		    kernel_cap_t *permitted);
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int security_capset(struct cred *new, const struct cred *old,
		    const kernel_cap_t *effective,
		    const kernel_cap_t *inheritable,
		    const kernel_cap_t *permitted);
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int security_capable(const struct cred *cred, struct user_namespace *ns,
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			int cap);
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int security_capable_noaudit(const struct cred *cred, struct user_namespace *ns,
			     int cap);
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int security_quotactl(int cmds, int type, int id, struct super_block *sb);
int security_quota_on(struct dentry *dentry);
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int security_syslog(int type);
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int security_settime(const struct timespec *ts, const struct timezone *tz);
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int security_vm_enough_memory_mm(struct mm_struct *mm, long pages);
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int security_bprm_set_creds(struct linux_binprm *bprm);
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int security_bprm_check(struct linux_binprm *bprm);
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void security_bprm_committing_creds(struct linux_binprm *bprm);
void security_bprm_committed_creds(struct linux_binprm *bprm);
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int security_bprm_secureexec(struct linux_binprm *bprm);
int security_sb_alloc(struct super_block *sb);
void security_sb_free(struct super_block *sb);
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int security_sb_copy_data(char *orig, char *copy);
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int security_sb_remount(struct super_block *sb, void *data);
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int security_sb_kern_mount(struct super_block *sb, int flags, void *data);
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int security_sb_show_options(struct seq_file *m, struct super_block *sb);
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int security_sb_statfs(struct dentry *dentry);
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int security_sb_mount(const char *dev_name, struct path *path,
		      const char *type, unsigned long flags, void *data);
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int security_sb_umount(struct vfsmount *mnt, int flags);
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int security_sb_pivotroot(struct path *old_path, struct path *new_path);
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int security_sb_set_mnt_opts(struct super_block *sb,
				struct security_mnt_opts *opts,
				unsigned long kern_flags,
				unsigned long *set_kern_flags);
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int security_sb_clone_mnt_opts(const struct super_block *oldsb,
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				struct super_block *newsb);
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int security_sb_parse_opts_str(char *options, struct security_mnt_opts *opts);
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int security_dentry_init_security(struct dentry *dentry, int mode,
					struct qstr *name, void **ctx,
					u32 *ctxlen);
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int security_inode_alloc(struct inode *inode);
void security_inode_free(struct inode *inode);
int security_inode_init_security(struct inode *inode, struct inode *dir,
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				 const struct qstr *qstr,
				 initxattrs initxattrs, void *fs_data);
int security_old_inode_init_security(struct inode *inode, struct inode *dir,
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				     const struct qstr *qstr, const char **name,
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				     void **value, size_t *len);
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int security_inode_create(struct inode *dir, struct dentry *dentry, umode_t mode);
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int security_inode_link(struct dentry *old_dentry, struct inode *dir,
			 struct dentry *new_dentry);
int security_inode_unlink(struct inode *dir, struct dentry *dentry);
int security_inode_symlink(struct inode *dir, struct dentry *dentry,
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			   const char *old_name);
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int security_inode_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode);
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int security_inode_rmdir(struct inode *dir, struct dentry *dentry);
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int security_inode_mknod(struct inode *dir, struct dentry *dentry, umode_t mode, dev_t dev);
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int security_inode_rename(struct inode *old_dir, struct dentry *old_dentry,
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			  struct inode *new_dir, struct dentry *new_dentry,
			  unsigned int flags);
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int security_inode_readlink(struct dentry *dentry);
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int security_inode_follow_link(struct dentry *dentry, struct inode *inode,
			       bool rcu);
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int security_inode_permission(struct inode *inode, int mask);
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int security_inode_setattr(struct dentry *dentry, struct iattr *attr);
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int security_inode_getattr(const struct path *path);
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int security_inode_setxattr(struct dentry *dentry, const char *name,
			    const void *value, size_t size, int flags);
void security_inode_post_setxattr(struct dentry *dentry, const char *name,
				  const void *value, size_t size, int flags);
int security_inode_getxattr(struct dentry *dentry, const char *name);
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int security_inode_listxattr(struct dentry *dentry);
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int security_inode_removexattr(struct dentry *dentry, const char *name);
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int security_inode_need_killpriv(struct dentry *dentry);
int security_inode_killpriv(struct dentry *dentry);
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int security_inode_getsecurity(struct inode *inode, const char *name, void **buffer, bool alloc);
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int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags);
int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size);
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void security_inode_getsecid(struct inode *inode, u32 *secid);
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int security_file_permission(struct file *file, int mask);
int security_file_alloc(struct file *file);
void security_file_free(struct file *file);
int security_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg);
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int security_mmap_file(struct file *file, unsigned long prot,
			unsigned long flags);
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int security_mmap_addr(unsigned long addr);
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int security_file_mprotect(struct vm_area_struct *vma, unsigned long reqprot,
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			   unsigned long prot);
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int security_file_lock(struct file *file, unsigned int cmd);
int security_file_fcntl(struct file *file, unsigned int cmd, unsigned long arg);
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void security_file_set_fowner(struct file *file);
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int security_file_send_sigiotask(struct task_struct *tsk,
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				 struct fown_struct *fown, int sig);
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int security_file_receive(struct file *file);
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int security_file_open(struct file *file, const struct cred *cred);
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int security_task_create(unsigned long clone_flags);
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void security_task_free(struct task_struct *task);
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int security_cred_alloc_blank(struct cred *cred, gfp_t gfp);
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void security_cred_free(struct cred *cred);
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int security_prepare_creds(struct cred *new, const struct cred *old, gfp_t gfp);
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void security_transfer_creds(struct cred *new, const struct cred *old);
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int security_kernel_act_as(struct cred *new, u32 secid);
int security_kernel_create_files_as(struct cred *new, struct inode *inode);
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int security_kernel_fw_from_file(struct file *file, char *buf, size_t size);
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int security_kernel_module_request(char *kmod_name);
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int security_kernel_module_from_file(struct file *file);
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int security_kernel_post_read_file(struct file *file, char *buf, loff_t size);
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int security_task_fix_setuid(struct cred *new, const struct cred *old,
			     int flags);
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int security_task_setpgid(struct task_struct *p, pid_t pgid);
int security_task_getpgid(struct task_struct *p);
int security_task_getsid(struct task_struct *p);
void security_task_getsecid(struct task_struct *p, u32 *secid);
int security_task_setnice(struct task_struct *p, int nice);
int security_task_setioprio(struct task_struct *p, int ioprio);
int security_task_getioprio(struct task_struct *p);
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int security_task_setrlimit(struct task_struct *p, unsigned int resource,
		struct rlimit *new_rlim);
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int security_task_setscheduler(struct task_struct *p);
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int security_task_getscheduler(struct task_struct *p);
int security_task_movememory(struct task_struct *p);
int security_task_kill(struct task_struct *p, struct siginfo *info,
			int sig, u32 secid);
int security_task_wait(struct task_struct *p);
int security_task_prctl(int option, unsigned long arg2, unsigned long arg3,
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			unsigned long arg4, unsigned long arg5);
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void security_task_to_inode(struct task_struct *p, struct inode *inode);
int security_ipc_permission(struct kern_ipc_perm *ipcp, short flag);
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void security_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid);
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int security_msg_msg_alloc(struct msg_msg *msg);
void security_msg_msg_free(struct msg_msg *msg);
int security_msg_queue_alloc(struct msg_queue *msq);
void security_msg_queue_free(struct msg_queue *msq);
int security_msg_queue_associate(struct msg_queue *msq, int msqflg);
int security_msg_queue_msgctl(struct msg_queue *msq, int cmd);
int security_msg_queue_msgsnd(struct msg_queue *msq,
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			      struct msg_msg *msg, int msqflg);
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int security_msg_queue_msgrcv(struct msg_queue *msq, struct msg_msg *msg,
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			      struct task_struct *target, long type, int mode);
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int security_shm_alloc(struct shmid_kernel *shp);
void security_shm_free(struct shmid_kernel *shp);
int security_shm_associate(struct shmid_kernel *shp, int shmflg);
int security_shm_shmctl(struct shmid_kernel *shp, int cmd);
int security_shm_shmat(struct shmid_kernel *shp, char __user *shmaddr, int shmflg);
int security_sem_alloc(struct sem_array *sma);
void security_sem_free(struct sem_array *sma);
int security_sem_associate(struct sem_array *sma, int semflg);
int security_sem_semctl(struct sem_array *sma, int cmd);
int security_sem_semop(struct sem_array *sma, struct sembuf *sops,
			unsigned nsops, int alter);
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void security_d_instantiate(struct dentry *dentry, struct inode *inode);
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int security_getprocattr(struct task_struct *p, char *name, char **value);
int security_setprocattr(struct task_struct *p, char *name, void *value, size_t size);
int security_netlink_send(struct sock *sk, struct sk_buff *skb);
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int security_ismaclabel(const char *name);
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int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen);
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int security_secctx_to_secid(const char *secdata, u32 seclen, u32 *secid);
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void security_release_secctx(char *secdata, u32 seclen);

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void security_inode_invalidate_secctx(struct inode *inode);
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int security_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen);
int security_inode_setsecctx(struct dentry *dentry, void *ctx, u32 ctxlen);
int security_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen);
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#else /* CONFIG_SECURITY */
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struct security_mnt_opts {
};

static inline void security_init_mnt_opts(struct security_mnt_opts *opts)
{
}

static inline void security_free_mnt_opts(struct security_mnt_opts *opts)
{
}
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/*
 * This is the default capabilities functionality.  Most of these functions
 * are just stubbed out, but a few must call the proper capable code.
 */

static inline int security_init(void)
{
	return 0;
}

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static inline int security_binder_set_context_mgr(struct task_struct *mgr)
{
	return 0;
}

static inline int security_binder_transaction(struct task_struct *from,
					      struct task_struct *to)
{
	return 0;
}

static inline int security_binder_transfer_binder(struct task_struct *from,
						  struct task_struct *to)
{
	return 0;
}

static inline int security_binder_transfer_file(struct task_struct *from,
						struct task_struct *to,
						struct file *file)
{
	return 0;
}

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static inline int security_ptrace_access_check(struct task_struct *child,
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					     unsigned int mode)
{
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	return cap_ptrace_access_check(child, mode);
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}

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static inline int security_ptrace_traceme(struct task_struct *parent)
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{
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	return cap_ptrace_traceme(parent);
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}

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static inline int security_capget(struct task_struct *target,
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				   kernel_cap_t *effective,
				   kernel_cap_t *inheritable,
				   kernel_cap_t *permitted)
{
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	return cap_capget(target, effective, inheritable, permitted);
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}

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static inline int security_capset(struct cred *new,
				   const struct cred *old,
				   const kernel_cap_t *effective,
				   const kernel_cap_t *inheritable,
				   const kernel_cap_t *permitted)
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{
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	return cap_capset(new, old, effective, inheritable, permitted);
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}

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static inline int security_capable(const struct cred *cred,
				   struct user_namespace *ns, int cap)
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{
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	return cap_capable(cred, ns, cap, SECURITY_CAP_AUDIT);
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}

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static inline int security_capable_noaudit(const struct cred *cred,
					   struct user_namespace *ns, int cap) {
	return cap_capable(cred, ns, cap, SECURITY_CAP_NOAUDIT);
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}

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static inline int security_quotactl(int cmds, int type, int id,
				     struct super_block *sb)
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{
	return 0;
}

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static inline int security_quota_on(struct dentry *dentry)
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{
	return 0;
}

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static inline int security_syslog(int type)
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{
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	return 0;
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}

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static inline int security_settime(const struct timespec *ts,
				   const struct timezone *tz)
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{
	return cap_settime(ts, tz);
}

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static inline int security_vm_enough_memory_mm(struct mm_struct *mm, long pages)
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{
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	return __vm_enough_memory(mm, pages, cap_vm_enough_memory(mm, pages));
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}

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static inline int security_bprm_set_creds(struct linux_binprm *bprm)
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{
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	return cap_bprm_set_creds(bprm);
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}

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static inline int security_bprm_check(struct linux_binprm *bprm)
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{
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	return 0;
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}

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static inline void security_bprm_committing_creds(struct linux_binprm *bprm)
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{
}

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static inline void security_bprm_committed_creds(struct linux_binprm *bprm)
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{
}

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static inline int security_bprm_secureexec(struct linux_binprm *bprm)
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{
	return cap_bprm_secureexec(bprm);
}

496
static inline int security_sb_alloc(struct super_block *sb)
L
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497 498 499 500
{
	return 0;
}

501
static inline void security_sb_free(struct super_block *sb)
L
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502 503
{ }

504
static inline int security_sb_copy_data(char *orig, char *copy)
L
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505 506 507 508
{
	return 0;
}

509 510 511 512 513
static inline int security_sb_remount(struct super_block *sb, void *data)
{
	return 0;
}

514
static inline int security_sb_kern_mount(struct super_block *sb, int flags, void *data)
L
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{
	return 0;
}

519 520 521 522 523 524
static inline int security_sb_show_options(struct seq_file *m,
					   struct super_block *sb)
{
	return 0;
}

525
static inline int security_sb_statfs(struct dentry *dentry)
L
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526 527 528 529
{
	return 0;
}

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530 531
static inline int security_sb_mount(const char *dev_name, struct path *path,
				    const char *type, unsigned long flags,
L
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532 533 534 535 536
				    void *data)
{
	return 0;
}

537
static inline int security_sb_umount(struct vfsmount *mnt, int flags)
L
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{
	return 0;
}

542 543
static inline int security_sb_pivotroot(struct path *old_path,
					struct path *new_path)
L
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544 545 546 547
{
	return 0;
}

548
static inline int security_sb_set_mnt_opts(struct super_block *sb,
549 550 551
					   struct security_mnt_opts *opts,
					   unsigned long kern_flags,
					   unsigned long *set_kern_flags)
552 553 554 555
{
	return 0;
}

556
static inline int security_sb_clone_mnt_opts(const struct super_block *oldsb,
557
					      struct super_block *newsb)
558 559 560
{
	return 0;
}
561 562 563 564 565

static inline int security_sb_parse_opts_str(char *options, struct security_mnt_opts *opts)
{
	return 0;
}
L
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566

567
static inline int security_inode_alloc(struct inode *inode)
L
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568 569 570 571
{
	return 0;
}

572
static inline void security_inode_free(struct inode *inode)
L
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{ }
574

575 576 577 578 579 580 581 582 583 584
static inline int security_dentry_init_security(struct dentry *dentry,
						 int mode,
						 struct qstr *name,
						 void **ctx,
						 u32 *ctxlen)
{
	return -EOPNOTSUPP;
}


585
static inline int security_inode_init_security(struct inode *inode,
586
						struct inode *dir,
587
						const struct qstr *qstr,
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588
						const initxattrs xattrs,
589
						void *fs_data)
590
{
M
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591
	return 0;
592
}
593

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594 595 596
static inline int security_old_inode_init_security(struct inode *inode,
						   struct inode *dir,
						   const struct qstr *qstr,
597 598
						   const char **name,
						   void **value, size_t *len)
599
{
600
	return -EOPNOTSUPP;
601 602
}

603
static inline int security_inode_create(struct inode *dir,
L
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604
					 struct dentry *dentry,
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605
					 umode_t mode)
L
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{
	return 0;
}

610
static inline int security_inode_link(struct dentry *old_dentry,
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				       struct inode *dir,
				       struct dentry *new_dentry)
{
	return 0;
}

617
static inline int security_inode_unlink(struct inode *dir,
L
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					 struct dentry *dentry)
{
	return 0;
}

623
static inline int security_inode_symlink(struct inode *dir,
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					  struct dentry *dentry,
					  const char *old_name)
{
	return 0;
}

630
static inline int security_inode_mkdir(struct inode *dir,
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					struct dentry *dentry,
					int mode)
{
	return 0;
}

637
static inline int security_inode_rmdir(struct inode *dir,
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					struct dentry *dentry)
{
	return 0;
}

643
static inline int security_inode_mknod(struct inode *dir,
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					struct dentry *dentry,
					int mode, dev_t dev)
{
	return 0;
}

650
static inline int security_inode_rename(struct inode *old_dir,
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					 struct dentry *old_dentry,
					 struct inode *new_dir,
653 654
					 struct dentry *new_dentry,
					 unsigned int flags)
L
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{
	return 0;
}

659
static inline int security_inode_readlink(struct dentry *dentry)
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{
	return 0;
}

664 665 666
static inline int security_inode_follow_link(struct dentry *dentry,
					     struct inode *inode,
					     bool rcu)
L
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{
	return 0;
}

671
static inline int security_inode_permission(struct inode *inode, int mask)
L
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672 673 674 675
{
	return 0;
}

676
static inline int security_inode_setattr(struct dentry *dentry,
L
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677 678 679 680 681
					  struct iattr *attr)
{
	return 0;
}

682
static inline int security_inode_getattr(const struct path *path)
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{
	return 0;
}

687 688
static inline int security_inode_setxattr(struct dentry *dentry,
		const char *name, const void *value, size_t size, int flags)
L
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{
	return cap_inode_setxattr(dentry, name, value, size, flags);
}

693 694
static inline void security_inode_post_setxattr(struct dentry *dentry,
		const char *name, const void *value, size_t size, int flags)
L
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{ }

697 698
static inline int security_inode_getxattr(struct dentry *dentry,
			const char *name)
L
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699 700 701 702
{
	return 0;
}

703
static inline int security_inode_listxattr(struct dentry *dentry)
L
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{
	return 0;
}

708 709
static inline int security_inode_removexattr(struct dentry *dentry,
			const char *name)
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{
	return cap_inode_removexattr(dentry, name);
}

714 715 716 717 718 719 720 721 722 723
static inline int security_inode_need_killpriv(struct dentry *dentry)
{
	return cap_inode_need_killpriv(dentry);
}

static inline int security_inode_killpriv(struct dentry *dentry)
{
	return cap_inode_killpriv(dentry);
}

724
static inline int security_inode_getsecurity(struct inode *inode, const char *name, void **buffer, bool alloc)
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{
	return -EOPNOTSUPP;
}

static inline int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags)
{
	return -EOPNOTSUPP;
}

static inline int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size)
{
	return 0;
}

739
static inline void security_inode_getsecid(struct inode *inode, u32 *secid)
740 741 742 743
{
	*secid = 0;
}

744
static inline int security_file_permission(struct file *file, int mask)
L
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{
	return 0;
}

749
static inline int security_file_alloc(struct file *file)
L
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750 751 752 753
{
	return 0;
}

754
static inline void security_file_free(struct file *file)
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{ }

757 758
static inline int security_file_ioctl(struct file *file, unsigned int cmd,
				      unsigned long arg)
L
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{
	return 0;
}

763
static inline int security_mmap_file(struct file *file, unsigned long prot,
764 765 766 767 768 769
				     unsigned long flags)
{
	return 0;
}

static inline int security_mmap_addr(unsigned long addr)
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{
771
	return cap_mmap_addr(addr);
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}

774 775 776
static inline int security_file_mprotect(struct vm_area_struct *vma,
					 unsigned long reqprot,
					 unsigned long prot)
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{
	return 0;
}

781
static inline int security_file_lock(struct file *file, unsigned int cmd)
L
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{
	return 0;
}

786 787
static inline int security_file_fcntl(struct file *file, unsigned int cmd,
				      unsigned long arg)
L
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{
	return 0;
}

792
static inline void security_file_set_fowner(struct file *file)
L
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{
794
	return;
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}

797 798 799
static inline int security_file_send_sigiotask(struct task_struct *tsk,
					       struct fown_struct *fown,
					       int sig)
L
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{
	return 0;
}

804
static inline int security_file_receive(struct file *file)
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{
	return 0;
}

809 810
static inline int security_file_open(struct file *file,
				     const struct cred *cred)
811 812 813 814
{
	return 0;
}

815
static inline int security_task_create(unsigned long clone_flags)
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{
	return 0;
}

820 821 822
static inline void security_task_free(struct task_struct *task)
{ }

823 824 825 826
static inline int security_cred_alloc_blank(struct cred *cred, gfp_t gfp)
{
	return 0;
}
827

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static inline void security_cred_free(struct cred *cred)
{ }

static inline int security_prepare_creds(struct cred *new,
					 const struct cred *old,
					 gfp_t gfp)
L
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{
	return 0;
}

838 839 840 841 842
static inline void security_transfer_creds(struct cred *new,
					   const struct cred *old)
{
}

843 844 845 846 847 848 849 850 851 852 853
static inline int security_kernel_act_as(struct cred *cred, u32 secid)
{
	return 0;
}

static inline int security_kernel_create_files_as(struct cred *cred,
						  struct inode *inode)
{
	return 0;
}

854 855 856 857 858 859
static inline int security_kernel_fw_from_file(struct file *file,
					       char *buf, size_t size)
{
	return 0;
}

860
static inline int security_kernel_module_request(char *kmod_name)
861 862
{
	return 0;
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}

865 866 867 868 869
static inline int security_kernel_module_from_file(struct file *file)
{
	return 0;
}

870 871 872 873 874 875
static inline int security_kernel_post_read_file(struct file *file,
						 char *buf, loff_t size)
{
	return 0;
}

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static inline int security_task_fix_setuid(struct cred *new,
					   const struct cred *old,
					   int flags)
L
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{
D
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	return cap_task_fix_setuid(new, old, flags);
L
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}

883
static inline int security_task_setpgid(struct task_struct *p, pid_t pgid)
L
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{
	return 0;
}

888
static inline int security_task_getpgid(struct task_struct *p)
L
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{
	return 0;
}

893
static inline int security_task_getsid(struct task_struct *p)
L
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{
	return 0;
}

898
static inline void security_task_getsecid(struct task_struct *p, u32 *secid)
899 900 901
{
	*secid = 0;
}
902

903
static inline int security_task_setnice(struct task_struct *p, int nice)
L
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{
905
	return cap_task_setnice(p, nice);
L
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}

908
static inline int security_task_setioprio(struct task_struct *p, int ioprio)
909
{
910
	return cap_task_setioprio(p, ioprio);
911 912
}

913
static inline int security_task_getioprio(struct task_struct *p)
914 915 916 917
{
	return 0;
}

918 919
static inline int security_task_setrlimit(struct task_struct *p,
					  unsigned int resource,
920
					  struct rlimit *new_rlim)
L
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921 922 923 924
{
	return 0;
}

925
static inline int security_task_setscheduler(struct task_struct *p)
L
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926
{
927
	return cap_task_setscheduler(p);
L
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928 929
}

930
static inline int security_task_getscheduler(struct task_struct *p)
L
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931 932 933 934
{
	return 0;
}

935
static inline int security_task_movememory(struct task_struct *p)
936 937 938 939
{
	return 0;
}

940 941 942
static inline int security_task_kill(struct task_struct *p,
				     struct siginfo *info, int sig,
				     u32 secid)
L
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943
{
944
	return 0;
L
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945 946
}

947
static inline int security_task_wait(struct task_struct *p)
L
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948 949 950 951
{
	return 0;
}

952 953 954
static inline int security_task_prctl(int option, unsigned long arg2,
				      unsigned long arg3,
				      unsigned long arg4,
D
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955
				      unsigned long arg5)
L
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956
{
957
	return cap_task_prctl(option, arg2, arg3, arg4, arg5);
L
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958 959 960 961 962
}

static inline void security_task_to_inode(struct task_struct *p, struct inode *inode)
{ }

963 964
static inline int security_ipc_permission(struct kern_ipc_perm *ipcp,
					  short flag)
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965 966 967 968
{
	return 0;
}

969 970 971 972 973
static inline void security_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid)
{
	*secid = 0;
}

974
static inline int security_msg_msg_alloc(struct msg_msg *msg)
L
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975 976 977 978
{
	return 0;
}

979
static inline void security_msg_msg_free(struct msg_msg *msg)
L
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980 981
{ }

982
static inline int security_msg_queue_alloc(struct msg_queue *msq)
L
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983 984 985 986
{
	return 0;
}

987
static inline void security_msg_queue_free(struct msg_queue *msq)
L
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988 989
{ }

990 991
static inline int security_msg_queue_associate(struct msg_queue *msq,
					       int msqflg)
L
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992 993 994 995
{
	return 0;
}

996
static inline int security_msg_queue_msgctl(struct msg_queue *msq, int cmd)
L
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997 998 999 1000
{
	return 0;
}

1001 1002
static inline int security_msg_queue_msgsnd(struct msg_queue *msq,
					    struct msg_msg *msg, int msqflg)
L
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1003 1004 1005 1006
{
	return 0;
}

1007 1008 1009 1010
static inline int security_msg_queue_msgrcv(struct msg_queue *msq,
					    struct msg_msg *msg,
					    struct task_struct *target,
					    long type, int mode)
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1011 1012 1013 1014
{
	return 0;
}

1015
static inline int security_shm_alloc(struct shmid_kernel *shp)
L
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1016 1017 1018 1019
{
	return 0;
}

1020
static inline void security_shm_free(struct shmid_kernel *shp)
L
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1021 1022
{ }

1023 1024
static inline int security_shm_associate(struct shmid_kernel *shp,
					 int shmflg)
L
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1025 1026 1027 1028
{
	return 0;
}

1029
static inline int security_shm_shmctl(struct shmid_kernel *shp, int cmd)
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1030 1031 1032 1033
{
	return 0;
}

1034 1035
static inline int security_shm_shmat(struct shmid_kernel *shp,
				     char __user *shmaddr, int shmflg)
L
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1036 1037 1038 1039
{
	return 0;
}

1040
static inline int security_sem_alloc(struct sem_array *sma)
L
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1041 1042 1043 1044
{
	return 0;
}

1045
static inline void security_sem_free(struct sem_array *sma)
L
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1046 1047
{ }

1048
static inline int security_sem_associate(struct sem_array *sma, int semflg)
L
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1049 1050 1051 1052
{
	return 0;
}

1053
static inline int security_sem_semctl(struct sem_array *sma, int cmd)
L
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1054 1055 1056 1057
{
	return 0;
}

1058 1059 1060
static inline int security_sem_semop(struct sem_array *sma,
				     struct sembuf *sops, unsigned nsops,
				     int alter)
L
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1061 1062 1063 1064
{
	return 0;
}

1065
static inline void security_d_instantiate(struct dentry *dentry, struct inode *inode)
L
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1066 1067
{ }

1068
static inline int security_getprocattr(struct task_struct *p, char *name, char **value)
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{
	return -EINVAL;
}

static inline int security_setprocattr(struct task_struct *p, char *name, void *value, size_t size)
{
	return -EINVAL;
}

1078
static inline int security_netlink_send(struct sock *sk, struct sk_buff *skb)
L
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1079
{
C
Casey Schaufler 已提交
1080
	return 0;
L
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1081 1082
}

1083 1084 1085 1086 1087
static inline int security_ismaclabel(const char *name)
{
	return 0;
}

1088 1089 1090 1091 1092
static inline int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen)
{
	return -EOPNOTSUPP;
}

1093
static inline int security_secctx_to_secid(const char *secdata,
1094 1095 1096 1097 1098 1099
					   u32 seclen,
					   u32 *secid)
{
	return -EOPNOTSUPP;
}

1100 1101 1102
static inline void security_release_secctx(char *secdata, u32 seclen)
{
}
1103

1104 1105 1106 1107
static inline void security_inode_invalidate_secctx(struct inode *inode)
{
}

1108 1109 1110 1111 1112 1113 1114 1115 1116 1117 1118 1119
static inline int security_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen)
{
	return -EOPNOTSUPP;
}
static inline int security_inode_setsecctx(struct dentry *dentry, void *ctx, u32 ctxlen)
{
	return -EOPNOTSUPP;
}
static inline int security_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen)
{
	return -EOPNOTSUPP;
}
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#endif	/* CONFIG_SECURITY */

#ifdef CONFIG_SECURITY_NETWORK
1123

1124
int security_unix_stream_connect(struct sock *sock, struct sock *other, struct sock *newsk);
1125 1126 1127 1128 1129 1130 1131 1132 1133 1134 1135 1136 1137 1138 1139 1140 1141 1142 1143 1144 1145 1146 1147 1148 1149 1150 1151 1152 1153 1154 1155 1156
int security_unix_may_send(struct socket *sock,  struct socket *other);
int security_socket_create(int family, int type, int protocol, int kern);
int security_socket_post_create(struct socket *sock, int family,
				int type, int protocol, int kern);
int security_socket_bind(struct socket *sock, struct sockaddr *address, int addrlen);
int security_socket_connect(struct socket *sock, struct sockaddr *address, int addrlen);
int security_socket_listen(struct socket *sock, int backlog);
int security_socket_accept(struct socket *sock, struct socket *newsock);
int security_socket_sendmsg(struct socket *sock, struct msghdr *msg, int size);
int security_socket_recvmsg(struct socket *sock, struct msghdr *msg,
			    int size, int flags);
int security_socket_getsockname(struct socket *sock);
int security_socket_getpeername(struct socket *sock);
int security_socket_getsockopt(struct socket *sock, int level, int optname);
int security_socket_setsockopt(struct socket *sock, int level, int optname);
int security_socket_shutdown(struct socket *sock, int how);
int security_sock_rcv_skb(struct sock *sk, struct sk_buff *skb);
int security_socket_getpeersec_stream(struct socket *sock, char __user *optval,
				      int __user *optlen, unsigned len);
int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid);
int security_sk_alloc(struct sock *sk, int family, gfp_t priority);
void security_sk_free(struct sock *sk);
void security_sk_clone(const struct sock *sk, struct sock *newsk);
void security_sk_classify_flow(struct sock *sk, struct flowi *fl);
void security_req_classify_flow(const struct request_sock *req, struct flowi *fl);
void security_sock_graft(struct sock*sk, struct socket *parent);
int security_inet_conn_request(struct sock *sk,
			struct sk_buff *skb, struct request_sock *req);
void security_inet_csk_clone(struct sock *newsk,
			const struct request_sock *req);
void security_inet_conn_established(struct sock *sk,
			struct sk_buff *skb);
1157 1158 1159
int security_secmark_relabel_packet(u32 secid);
void security_secmark_refcount_inc(void);
void security_secmark_refcount_dec(void);
1160 1161
int security_tun_dev_alloc_security(void **security);
void security_tun_dev_free_security(void *security);
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int security_tun_dev_create(void);
1163 1164 1165
int security_tun_dev_attach_queue(void *security);
int security_tun_dev_attach(struct sock *sk, void *security);
int security_tun_dev_open(void *security);
1166

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#else	/* CONFIG_SECURITY_NETWORK */
1168 1169
static inline int security_unix_stream_connect(struct sock *sock,
					       struct sock *other,
1170
					       struct sock *newsk)
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{
	return 0;
}

1175 1176
static inline int security_unix_may_send(struct socket *sock,
					 struct socket *other)
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{
	return 0;
}

1181 1182
static inline int security_socket_create(int family, int type,
					 int protocol, int kern)
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{
	return 0;
}

1187
static inline int security_socket_post_create(struct socket *sock,
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					      int family,
					      int type,
					      int protocol, int kern)
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{
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	return 0;
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}

1195 1196
static inline int security_socket_bind(struct socket *sock,
				       struct sockaddr *address,
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				       int addrlen)
{
	return 0;
}

1202 1203
static inline int security_socket_connect(struct socket *sock,
					  struct sockaddr *address,
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					  int addrlen)
{
	return 0;
}

1209
static inline int security_socket_listen(struct socket *sock, int backlog)
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{
	return 0;
}

1214 1215
static inline int security_socket_accept(struct socket *sock,
					 struct socket *newsock)
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{
	return 0;
}

1220 1221
static inline int security_socket_sendmsg(struct socket *sock,
					  struct msghdr *msg, int size)
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{
	return 0;
}

1226 1227
static inline int security_socket_recvmsg(struct socket *sock,
					  struct msghdr *msg, int size,
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					  int flags)
{
	return 0;
}

1233
static inline int security_socket_getsockname(struct socket *sock)
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{
	return 0;
}

1238
static inline int security_socket_getpeername(struct socket *sock)
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{
	return 0;
}

1243
static inline int security_socket_getsockopt(struct socket *sock,
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					     int level, int optname)
{
	return 0;
}

1249
static inline int security_socket_setsockopt(struct socket *sock,
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					     int level, int optname)
{
	return 0;
}

1255
static inline int security_socket_shutdown(struct socket *sock, int how)
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{
	return 0;
}
1259 1260
static inline int security_sock_rcv_skb(struct sock *sk,
					struct sk_buff *skb)
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{
	return 0;
}

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static inline int security_socket_getpeersec_stream(struct socket *sock, char __user *optval,
						    int __user *optlen, unsigned len)
{
	return -ENOPROTOOPT;
}

1271
static inline int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid)
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{
	return -ENOPROTOOPT;
}

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static inline int security_sk_alloc(struct sock *sk, int family, gfp_t priority)
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{
	return 0;
}

static inline void security_sk_free(struct sock *sk)
1282 1283 1284 1285
{
}

static inline void security_sk_clone(const struct sock *sk, struct sock *newsk)
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{
}
1288

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static inline void security_sk_classify_flow(struct sock *sk, struct flowi *fl)
1290 1291
{
}
1292 1293 1294 1295 1296

static inline void security_req_classify_flow(const struct request_sock *req, struct flowi *fl)
{
}

1297
static inline void security_sock_graft(struct sock *sk, struct socket *parent)
1298 1299 1300 1301 1302 1303 1304 1305 1306 1307 1308 1309 1310
{
}

static inline int security_inet_conn_request(struct sock *sk,
			struct sk_buff *skb, struct request_sock *req)
{
	return 0;
}

static inline void security_inet_csk_clone(struct sock *newsk,
			const struct request_sock *req)
{
}
1311 1312 1313 1314 1315

static inline void security_inet_conn_established(struct sock *sk,
			struct sk_buff *skb)
{
}
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1317 1318 1319 1320 1321 1322 1323 1324 1325 1326 1327 1328 1329
static inline int security_secmark_relabel_packet(u32 secid)
{
	return 0;
}

static inline void security_secmark_refcount_inc(void)
{
}

static inline void security_secmark_refcount_dec(void)
{
}

1330 1331 1332 1333 1334 1335 1336 1337 1338
static inline int security_tun_dev_alloc_security(void **security)
{
	return 0;
}

static inline void security_tun_dev_free_security(void *security)
{
}

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static inline int security_tun_dev_create(void)
{
	return 0;
}

1344 1345 1346 1347 1348 1349
static inline int security_tun_dev_attach_queue(void *security)
{
	return 0;
}

static inline int security_tun_dev_attach(struct sock *sk, void *security)
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{
1351
	return 0;
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}

1354
static inline int security_tun_dev_open(void *security)
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{
	return 0;
}
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#endif	/* CONFIG_SECURITY_NETWORK */

1360
#ifdef CONFIG_SECURITY_NETWORK_XFRM
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1362 1363
int security_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp,
			       struct xfrm_user_sec_ctx *sec_ctx, gfp_t gfp);
1364 1365 1366
int security_xfrm_policy_clone(struct xfrm_sec_ctx *old_ctx, struct xfrm_sec_ctx **new_ctxp);
void security_xfrm_policy_free(struct xfrm_sec_ctx *ctx);
int security_xfrm_policy_delete(struct xfrm_sec_ctx *ctx);
1367 1368 1369 1370 1371
int security_xfrm_state_alloc(struct xfrm_state *x, struct xfrm_user_sec_ctx *sec_ctx);
int security_xfrm_state_alloc_acquire(struct xfrm_state *x,
				      struct xfrm_sec_ctx *polsec, u32 secid);
int security_xfrm_state_delete(struct xfrm_state *x);
void security_xfrm_state_free(struct xfrm_state *x);
1372
int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir);
1373
int security_xfrm_state_pol_flow_match(struct xfrm_state *x,
1374 1375
				       struct xfrm_policy *xp,
				       const struct flowi *fl);
1376 1377
int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid);
void security_skb_classify_flow(struct sk_buff *skb, struct flowi *fl);
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1379
#else	/* CONFIG_SECURITY_NETWORK_XFRM */
1380

1381 1382 1383
static inline int security_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp,
					     struct xfrm_user_sec_ctx *sec_ctx,
					     gfp_t gfp)
1384 1385 1386 1387
{
	return 0;
}

1388
static inline int security_xfrm_policy_clone(struct xfrm_sec_ctx *old, struct xfrm_sec_ctx **new_ctxp)
1389 1390 1391 1392
{
	return 0;
}

1393
static inline void security_xfrm_policy_free(struct xfrm_sec_ctx *ctx)
1394 1395 1396
{
}

1397
static inline int security_xfrm_policy_delete(struct xfrm_sec_ctx *ctx)
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{
	return 0;
}

1402 1403 1404 1405 1406 1407 1408 1409
static inline int security_xfrm_state_alloc(struct xfrm_state *x,
					struct xfrm_user_sec_ctx *sec_ctx)
{
	return 0;
}

static inline int security_xfrm_state_alloc_acquire(struct xfrm_state *x,
					struct xfrm_sec_ctx *polsec, u32 secid)
1410 1411 1412 1413 1414 1415 1416 1417
{
	return 0;
}

static inline void security_xfrm_state_free(struct xfrm_state *x)
{
}

1418
static inline int security_xfrm_state_delete(struct xfrm_state *x)
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{
	return 0;
}

1423
static inline int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir)
1424 1425 1426
{
	return 0;
}
1427 1428

static inline int security_xfrm_state_pol_flow_match(struct xfrm_state *x,
1429
			struct xfrm_policy *xp, const struct flowi *fl)
1430 1431 1432 1433
{
	return 1;
}

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static inline int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid)
1435 1436 1437 1438
{
	return 0;
}

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static inline void security_skb_classify_flow(struct sk_buff *skb, struct flowi *fl)
{
}

1443 1444
#endif	/* CONFIG_SECURITY_NETWORK_XFRM */

1445 1446
#ifdef CONFIG_SECURITY_PATH
int security_path_unlink(struct path *dir, struct dentry *dentry);
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int security_path_mkdir(struct path *dir, struct dentry *dentry, umode_t mode);
1448
int security_path_rmdir(struct path *dir, struct dentry *dentry);
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int security_path_mknod(struct path *dir, struct dentry *dentry, umode_t mode,
1450
			unsigned int dev);
1451
int security_path_truncate(struct path *path);
1452 1453 1454 1455 1456
int security_path_symlink(struct path *dir, struct dentry *dentry,
			  const char *old_name);
int security_path_link(struct dentry *old_dentry, struct path *new_dir,
		       struct dentry *new_dentry);
int security_path_rename(struct path *old_dir, struct dentry *old_dentry,
1457 1458
			 struct path *new_dir, struct dentry *new_dentry,
			 unsigned int flags);
1459
int security_path_chmod(struct path *path, umode_t mode);
1460
int security_path_chown(struct path *path, kuid_t uid, kgid_t gid);
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int security_path_chroot(struct path *path);
1462 1463 1464 1465 1466 1467 1468
#else	/* CONFIG_SECURITY_PATH */
static inline int security_path_unlink(struct path *dir, struct dentry *dentry)
{
	return 0;
}

static inline int security_path_mkdir(struct path *dir, struct dentry *dentry,
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				      umode_t mode)
1470 1471 1472 1473 1474 1475 1476 1477 1478 1479
{
	return 0;
}

static inline int security_path_rmdir(struct path *dir, struct dentry *dentry)
{
	return 0;
}

static inline int security_path_mknod(struct path *dir, struct dentry *dentry,
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				      umode_t mode, unsigned int dev)
1481 1482 1483 1484
{
	return 0;
}

1485
static inline int security_path_truncate(struct path *path)
1486 1487 1488 1489 1490 1491 1492 1493 1494 1495 1496 1497 1498 1499 1500 1501 1502 1503 1504 1505
{
	return 0;
}

static inline int security_path_symlink(struct path *dir, struct dentry *dentry,
					const char *old_name)
{
	return 0;
}

static inline int security_path_link(struct dentry *old_dentry,
				     struct path *new_dir,
				     struct dentry *new_dentry)
{
	return 0;
}

static inline int security_path_rename(struct path *old_dir,
				       struct dentry *old_dentry,
				       struct path *new_dir,
1506 1507
				       struct dentry *new_dentry,
				       unsigned int flags)
1508 1509 1510
{
	return 0;
}
1511

1512
static inline int security_path_chmod(struct path *path, umode_t mode)
1513 1514 1515 1516
{
	return 0;
}

1517
static inline int security_path_chown(struct path *path, kuid_t uid, kgid_t gid)
1518 1519 1520
{
	return 0;
}
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static inline int security_path_chroot(struct path *path)
{
	return 0;
}
1526 1527
#endif	/* CONFIG_SECURITY_PATH */

1528 1529 1530
#ifdef CONFIG_KEYS
#ifdef CONFIG_SECURITY

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int security_key_alloc(struct key *key, const struct cred *cred, unsigned long flags);
1532 1533
void security_key_free(struct key *key);
int security_key_permission(key_ref_t key_ref,
1534
			    const struct cred *cred, unsigned perm);
1535
int security_key_getsecurity(struct key *key, char **_buffer);
1536 1537 1538

#else

1539
static inline int security_key_alloc(struct key *key,
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				     const struct cred *cred,
1541
				     unsigned long flags)
1542 1543 1544 1545 1546 1547 1548 1549 1550
{
	return 0;
}

static inline void security_key_free(struct key *key)
{
}

static inline int security_key_permission(key_ref_t key_ref,
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					  const struct cred *cred,
1552
					  unsigned perm)
1553 1554 1555 1556
{
	return 0;
}

1557 1558 1559 1560
static inline int security_key_getsecurity(struct key *key, char **_buffer)
{
	*_buffer = NULL;
	return 0;
1561
}
1562

1563 1564 1565
#endif
#endif /* CONFIG_KEYS */

1566 1567 1568 1569 1570 1571 1572 1573 1574 1575 1576 1577 1578 1579 1580 1581 1582 1583 1584 1585 1586 1587 1588 1589 1590 1591 1592 1593 1594 1595 1596 1597 1598
#ifdef CONFIG_AUDIT
#ifdef CONFIG_SECURITY
int security_audit_rule_init(u32 field, u32 op, char *rulestr, void **lsmrule);
int security_audit_rule_known(struct audit_krule *krule);
int security_audit_rule_match(u32 secid, u32 field, u32 op, void *lsmrule,
			      struct audit_context *actx);
void security_audit_rule_free(void *lsmrule);

#else

static inline int security_audit_rule_init(u32 field, u32 op, char *rulestr,
					   void **lsmrule)
{
	return 0;
}

static inline int security_audit_rule_known(struct audit_krule *krule)
{
	return 0;
}

static inline int security_audit_rule_match(u32 secid, u32 field, u32 op,
				   void *lsmrule, struct audit_context *actx)
{
	return 0;
}

static inline void security_audit_rule_free(void *lsmrule)
{ }

#endif /* CONFIG_SECURITY */
#endif /* CONFIG_AUDIT */

1599 1600
#ifdef CONFIG_SECURITYFS

1601
extern struct dentry *securityfs_create_file(const char *name, umode_t mode,
1602 1603 1604 1605 1606 1607 1608 1609 1610 1611 1612 1613 1614 1615
					     struct dentry *parent, void *data,
					     const struct file_operations *fops);
extern struct dentry *securityfs_create_dir(const char *name, struct dentry *parent);
extern void securityfs_remove(struct dentry *dentry);

#else /* CONFIG_SECURITYFS */

static inline struct dentry *securityfs_create_dir(const char *name,
						   struct dentry *parent)
{
	return ERR_PTR(-ENODEV);
}

static inline struct dentry *securityfs_create_file(const char *name,
1616
						    umode_t mode,
1617 1618 1619 1620 1621 1622 1623 1624 1625 1626 1627 1628
						    struct dentry *parent,
						    void *data,
						    const struct file_operations *fops)
{
	return ERR_PTR(-ENODEV);
}

static inline void securityfs_remove(struct dentry *dentry)
{}

#endif

1629 1630 1631 1632 1633 1634 1635 1636 1637 1638 1639 1640 1641 1642 1643 1644 1645 1646 1647 1648 1649 1650 1651
#ifdef CONFIG_SECURITY

static inline char *alloc_secdata(void)
{
	return (char *)get_zeroed_page(GFP_KERNEL);
}

static inline void free_secdata(void *secdata)
{
	free_page((unsigned long)secdata);
}

#else

static inline char *alloc_secdata(void)
{
        return (char *)1;
}

static inline void free_secdata(void *secdata)
{ }
#endif /* CONFIG_SECURITY */

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#endif /* ! __LINUX_SECURITY_H */