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* Copyright (C) 2001 WireX Communications, Inc <chris@wirex.com>
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* Copyright (C) 2001 Greg Kroah-Hartman <greg@kroah.com>
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* Copyright (C) 2001 Networks Associates Technology, Inc <ssmalley@nai.com>
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* Copyright (C) 2001 James Morris <jmorris@intercode.com.au>
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* Copyright (C) 2001 Silicon Graphics, Inc. (Trust Technology Group)
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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 as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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* Due to this file being licensed under the GPL there is controversy over
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* whether this permits you to write a module that #includes this file
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* without placing your module under the GPL. Please consult a lawyer for
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* advice before doing this.
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#ifndef __LINUX_SECURITY_H
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#define __LINUX_SECURITY_H
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#include <linux/fsnotify.h>
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#include <linux/binfmts.h>
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#include <linux/dcache.h>
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#include <linux/signal.h>
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#include <linux/resource.h>
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#include <linux/sem.h>
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#include <linux/shm.h>
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#include <linux/mm.h> /* PAGE_ALIGN */
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#include <linux/msg.h>
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#include <linux/sched.h>
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#include <linux/key.h>
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#include <linux/xfrm.h>
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#include <linux/slab.h>
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#include <linux/xattr.h>
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/* Maximum number of letters for an LSM name string */
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#define SECURITY_NAME_MAX 10
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/* If capable should audit the security request */
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#define SECURITY_CAP_NOAUDIT 0
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#define SECURITY_CAP_AUDIT 1
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struct user_namespace;
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* These functions are in security/capability.c and are used
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* as the default capabilities functions
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extern int cap_capable(struct task_struct *tsk, const struct cred *cred,
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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,
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const kernel_cap_t *effective,
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const kernel_cap_t *inheritable,
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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,
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const void *value, size_t size, int flags);
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extern int cap_inode_removexattr(struct dentry *dentry, const char *name);
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extern int cap_inode_need_killpriv(struct dentry *dentry);
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extern int cap_inode_killpriv(struct dentry *dentry);
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extern int cap_file_mmap(struct file *file, unsigned long reqprot,
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unsigned long prot, unsigned long flags,
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unsigned long addr, unsigned long addr_only);
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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);
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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 xfrm_user_sec_ctx;
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extern int cap_netlink_send(struct sock *sk, struct sk_buff *skb);
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extern int cap_netlink_recv(struct sk_buff *skb, int cap);
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void reset_security_ops(void);
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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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#define dac_mmap_min_addr 0UL
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* Values used in the task_security_ops calls
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/* setuid or setgid, id0 == uid or gid */
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#define LSM_SETID_ID 1
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/* setreuid or setregid, id0 == real, id1 == eff */
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#define LSM_SETID_RE 2
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/* setresuid or setresgid, id0 == real, id1 == eff, uid2 == saved */
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#define LSM_SETID_RES 4
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/* setfsuid or setfsgid, id0 == fsuid or fsgid */
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#define LSM_SETID_FS 8
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/* forward declares to avoid warnings */
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/* bprm->unsafe reasons */
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#define LSM_UNSAFE_SHARE 1
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#define LSM_UNSAFE_PTRACE 2
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#define LSM_UNSAFE_PTRACE_CAP 4
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* If a hint addr is less than mmap_min_addr change hint to be as
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* low as possible but still greater than mmap_min_addr
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static inline unsigned long round_hint_to_min(unsigned long hint)
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if (((void *)hint != NULL) &&
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(hint < mmap_min_addr))
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return PAGE_ALIGN(mmap_min_addr);
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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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/* security_inode_init_security callback function to write xattrs */
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typedef int (*initxattrs) (struct inode *inode,
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const struct xattr *xattr_array, void *fs_data);
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#ifdef CONFIG_SECURITY
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struct security_mnt_opts {
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static inline void security_init_mnt_opts(struct security_mnt_opts *opts)
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opts->mnt_opts = NULL;
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opts->mnt_opts_flags = NULL;
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opts->num_mnt_opts = 0;
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static inline void security_free_mnt_opts(struct security_mnt_opts *opts)
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for (i = 0; i < opts->num_mnt_opts; i++)
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kfree(opts->mnt_opts[i]);
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kfree(opts->mnt_opts);
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opts->mnt_opts = NULL;
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kfree(opts->mnt_opts_flags);
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opts->mnt_opts_flags = NULL;
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opts->num_mnt_opts = 0;
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* struct security_operations - main security structure
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* Security module identifier.
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* A string that acts as a unique identifeir for the LSM with max number
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* of characters = SECURITY_NAME_MAX.
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* Security hooks for program execution operations.
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* Save security information in the bprm->security field, typically based
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* on information about the bprm->file, for later use by the apply_creds
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* hook. This hook may also optionally check permissions (e.g. for
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* transitions between security domains).
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* This hook may be called multiple times during a single execve, e.g. for
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* interpreters. The hook can tell whether it has already been called by
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* checking to see if @bprm->security is non-NULL. If so, then the hook
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* may decide either to retain the security information saved earlier or
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* @bprm contains the linux_binprm structure.
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* Return 0 if the hook is successful and permission is granted.
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* @bprm_check_security:
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* This hook mediates the point when a search for a binary handler will
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* begin. It allows a check the @bprm->security value which is set in the
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* preceding set_creds call. The primary difference from set_creds is
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* that the argv list and envp list are reliably available in @bprm. This
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* hook may be called multiple times during a single execve; and in each
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* pass set_creds is called first.
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* @bprm contains the linux_binprm structure.
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* Return 0 if the hook is successful and permission is granted.
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* @bprm_committing_creds:
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* Prepare to install the new security attributes of a process being
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* transformed by an execve operation, based on the old credentials
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* pointed to by @current->cred and the information set in @bprm->cred by
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* the bprm_set_creds hook. @bprm points to the linux_binprm structure.
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* This hook is a good place to perform state changes on the process such
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* as closing open file descriptors to which access will no longer be
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* granted when the attributes are changed. This is called immediately
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* before commit_creds().
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* @bprm_committed_creds:
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* Tidy up after the installation of the new security attributes of a
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* process being transformed by an execve operation. The new credentials
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* have, by this point, been set to @current->cred. @bprm points to the
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* linux_binprm structure. This hook is a good place to perform state
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* changes on the process such as clearing out non-inheritable signal
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* state. This is called immediately after commit_creds().
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* Return a boolean value (0 or 1) indicating whether a "secure exec"
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* is required. The flag is passed in the auxiliary table
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* on the initial stack to the ELF interpreter to indicate whether libc
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* should enable secure mode.
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* @bprm contains the linux_binprm structure.
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* Security hooks for filesystem operations.
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* @sb_alloc_security:
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* Allocate and attach a security structure to the sb->s_security field.
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* The s_security field is initialized to NULL when the structure is
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* @sb contains the super_block structure to be modified.
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* Return 0 if operation was successful.
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* Deallocate and clear the sb->s_security field.
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* @sb contains the super_block structure to be modified.
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* Check permission before obtaining filesystem statistics for the @mnt
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* @dentry is a handle on the superblock for the filesystem.
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* Return 0 if permission is granted.
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* Check permission before an object specified by @dev_name is mounted on
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* the mount point named by @nd. For an ordinary mount, @dev_name
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* identifies a device if the file system type requires a device. For a
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* remount (@flags & MS_REMOUNT), @dev_name is irrelevant. For a
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* loopback/bind mount (@flags & MS_BIND), @dev_name identifies the
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* pathname of the object being mounted.
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* @dev_name contains the name for object being mounted.
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* @path contains the path for mount point object.
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* @type contains the filesystem type.
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* @flags contains the mount flags.
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* @data contains the filesystem-specific data.
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* Return 0 if permission is granted.
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* Allow mount option data to be copied prior to parsing by the filesystem,
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* so that the security module can extract security-specific mount
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* options cleanly (a filesystem may modify the data e.g. with strsep()).
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* This also allows the original mount data to be stripped of security-
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* specific options to avoid having to make filesystems aware of them.
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* @type the type of filesystem being mounted.
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* @orig the original mount data copied from userspace.
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* @copy copied data which will be passed to the security module.
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* Returns 0 if the copy was successful.
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* Extracts security system specifc mount options and verifys no changes
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* are being made to those options.
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* @sb superblock being remounted
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* @data contains the filesystem-specific data.
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* Return 0 if permission is granted.
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* Check permission before the @mnt file system is unmounted.
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* @mnt contains the mounted file system.
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* @flags contains the unmount flags, e.g. MNT_FORCE.
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* Return 0 if permission is granted.
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* Check permission before pivoting the root filesystem.
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* @old_path contains the path for the new location of the current root (put_old).
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* @new_path contains the path for the new root (new_root).
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* Return 0 if permission is granted.
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* Set the security relevant mount options used for a superblock
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* @sb the superblock to set security mount options for
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* @opts binary data structure containing all lsm mount data
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* @sb_clone_mnt_opts:
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* Copy all security options from a given superblock to another
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* @oldsb old superblock which contain information to clone
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* @newsb new superblock which needs filled in
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* @sb_parse_opts_str:
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* Parse a string of security data filling in the opts structure
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* @options string containing all mount options known by the LSM
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* @opts binary data structure usable by the LSM
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* Security hooks for inode operations.
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* @inode_alloc_security:
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* Allocate and attach a security structure to @inode->i_security. The
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* i_security field is initialized to NULL when the inode structure is
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* @inode contains the inode structure.
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* Return 0 if operation was successful.
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* @inode_free_security:
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* @inode contains the inode structure.
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* Deallocate the inode security structure and set @inode->i_security to
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* @inode_init_security:
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* Obtain the security attribute name suffix and value to set on a newly
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* created inode and set up the incore security field for the new inode.
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* This hook is called by the fs code as part of the inode creation
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* transaction and provides for atomic labeling of the inode, unlike
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* the post_create/mkdir/... hooks called by the VFS. The hook function
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* is expected to allocate the name and value via kmalloc, with the caller
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* being responsible for calling kfree after using them.
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* If the security module does not use security attributes or does
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* not wish to put a security attribute on this particular inode,
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* then it should return -EOPNOTSUPP to skip this processing.
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* @inode contains the inode structure of the newly created inode.
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* @dir contains the inode structure of the parent directory.
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* @qstr contains the last path component of the new object
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* @name will be set to the allocated name suffix (e.g. selinux).
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* @value will be set to the allocated attribute value.
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* @len will be set to the length of the value.
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* Returns 0 if @name and @value have been successfully set,
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* -EOPNOTSUPP if no security attribute is needed, or
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* -ENOMEM on memory allocation failure.
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* Check permission to create a regular file.
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* @dir contains inode structure of the parent of the new file.
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* @dentry contains the dentry structure for the file to be created.
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* @mode contains the file mode of the file to be created.
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* Return 0 if permission is granted.
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* Check permission before creating a new hard link to a file.
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* @old_dentry contains the dentry structure for an existing link to the file.
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* @dir contains the inode structure of the parent directory of the new link.
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* @new_dentry contains the dentry structure for the new link.
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* Return 0 if permission is granted.
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* Check permission before creating a new hard link to a file.
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* @old_dentry contains the dentry structure for an existing link
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* @new_dir contains the path structure of the parent directory of
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* @new_dentry contains the dentry structure for the new link.
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* Return 0 if permission is granted.
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* Check the permission to remove a hard link to a file.
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* @dir contains the inode structure of parent directory of the file.
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* @dentry contains the dentry structure for file to be unlinked.
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* Return 0 if permission is granted.
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* Check the permission to remove a hard link to a file.
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* @dir contains the path structure of parent directory of the file.
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* @dentry contains the dentry structure for file to be unlinked.
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* Return 0 if permission is granted.
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* Check the permission to create a symbolic link to a file.
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* @dir contains the inode structure of parent directory of the symbolic link.
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* @dentry contains the dentry structure of the symbolic link.
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* @old_name contains the pathname of file.
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* Return 0 if permission is granted.
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* Check the permission to create a symbolic link to a file.
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* @dir contains the path structure of parent directory of
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* @dentry contains the dentry structure of the symbolic link.
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* @old_name contains the pathname of file.
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* Return 0 if permission is granted.
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* Check permissions to create a new directory in the existing directory
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* associated with inode strcture @dir.
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* @dir containst the inode structure of parent of the directory to be created.
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* @dentry contains the dentry structure of new directory.
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* @mode contains the mode of new directory.
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* Return 0 if permission is granted.
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* Check permissions to create a new directory in the existing directory
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* associated with path strcture @path.
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* @dir containst the path structure of parent of the directory
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* @dentry contains the dentry structure of new directory.
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* @mode contains the mode of new directory.
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* Return 0 if permission is granted.
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* Check the permission to remove a directory.
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* @dir contains the inode structure of parent of the directory to be removed.
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* @dentry contains the dentry structure of directory to be removed.
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* Return 0 if permission is granted.
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* Check the permission to remove a directory.
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* @dir contains the path structure of parent of the directory to be
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* @dentry contains the dentry structure of directory to be removed.
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* Return 0 if permission is granted.
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* Check permissions when creating a special file (or a socket or a fifo
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* file created via the mknod system call). Note that if mknod operation
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* is being done for a regular file, then the create hook will be called
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* @dir contains the inode structure of parent of the new file.
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* @dentry contains the dentry structure of the new file.
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* @mode contains the mode of the new file.
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* @dev contains the device number.
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* Return 0 if permission is granted.
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* Check permissions when creating a file. Note that this hook is called
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* even if mknod operation is being done for a regular file.
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* @dir contains the path structure of parent of the new file.
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* @dentry contains the dentry structure of the new file.
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* @mode contains the mode of the new file.
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* @dev contains the undecoded device number. Use new_decode_dev() to get
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* the decoded device number.
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* Return 0 if permission is granted.
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* Check for permission to rename a file or directory.
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* @old_dir contains the inode structure for parent of the old link.
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* @old_dentry contains the dentry structure of the old link.
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* @new_dir contains the inode structure for parent of the new link.
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* @new_dentry contains the dentry structure of the new link.
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* Return 0 if permission is granted.
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* Check for permission to rename a file or directory.
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* @old_dir contains the path structure for parent of the old link.
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* @old_dentry contains the dentry structure of the old link.
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* @new_dir contains the path structure for parent of the new link.
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* @new_dentry contains the dentry structure of the new link.
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* Return 0 if permission is granted.
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* Check for permission to change DAC's permission of a file or directory.
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* @dentry contains the dentry structure.
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* @mnt contains the vfsmnt structure.
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* @mode contains DAC's mode.
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* Return 0 if permission is granted.
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* Check for permission to change owner/group of a file or directory.
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* @path contains the path structure.
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* @uid contains new owner's ID.
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* @gid contains new group's ID.
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* Return 0 if permission is granted.
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* Check for permission to change root directory.
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* @path contains the path structure.
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* Return 0 if permission is granted.
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* Check the permission to read the symbolic link.
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* @dentry contains the dentry structure for the file link.
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* Return 0 if permission is granted.
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* @inode_follow_link:
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* Check permission to follow a symbolic link when looking up a pathname.
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* @dentry contains the dentry structure for the link.
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* @nd contains the nameidata structure for the parent directory.
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* Return 0 if permission is granted.
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* Check permission before accessing an inode. This hook is called by the
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* existing Linux permission function, so a security module can use it to
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* provide additional checking for existing Linux permission checks.
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* Notice that this hook is called when a file is opened (as well as many
470
* other operations), whereas the file_security_ops permission hook is
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* called when the actual read/write operations are performed.
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* @inode contains the inode structure to check.
473
* @mask contains the permission mask.
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* Return 0 if permission is granted.
476
* Check permission before setting file attributes. Note that the kernel
477
* call to notify_change is performed from several locations, whenever
478
* file attributes change (such as when a file is truncated, chown/chmod
479
* operations, transferring disk quotas, etc).
480
* @dentry contains the dentry structure for the file.
481
* @attr is the iattr structure containing the new file attributes.
482
* Return 0 if permission is granted.
484
* Check permission before truncating a file.
485
* @path contains the path structure for the file.
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* Return 0 if permission is granted.
488
* Check permission before obtaining file attributes.
489
* @mnt is the vfsmount where the dentry was looked up
490
* @dentry contains the dentry structure for the file.
491
* Return 0 if permission is granted.
493
* Check permission before setting the extended attributes
494
* @value identified by @name for @dentry.
495
* Return 0 if permission is granted.
496
* @inode_post_setxattr:
497
* Update inode security field after successful setxattr operation.
498
* @value identified by @name for @dentry.
500
* Check permission before obtaining the extended attributes
501
* identified by @name for @dentry.
502
* Return 0 if permission is granted.
504
* Check permission before obtaining the list of extended attribute
506
* Return 0 if permission is granted.
507
* @inode_removexattr:
508
* Check permission before removing the extended attribute
509
* identified by @name for @dentry.
510
* Return 0 if permission is granted.
511
* @inode_getsecurity:
512
* Retrieve a copy of the extended attribute representation of the
513
* security label associated with @name for @inode via @buffer. Note that
514
* @name is the remainder of the attribute name after the security prefix
515
* has been removed. @alloc is used to specify of the call should return a
516
* value via the buffer or just the value length Return size of buffer on
518
* @inode_setsecurity:
519
* Set the security label associated with @name for @inode from the
520
* extended attribute value @value. @size indicates the size of the
521
* @value in bytes. @flags may be XATTR_CREATE, XATTR_REPLACE, or 0.
522
* Note that @name is the remainder of the attribute name after the
523
* security. prefix has been removed.
524
* Return 0 on success.
525
* @inode_listsecurity:
526
* Copy the extended attribute names for the security labels
527
* associated with @inode into @buffer. The maximum size of @buffer
528
* is specified by @buffer_size. @buffer may be NULL to request
529
* the size of the buffer required.
530
* Returns number of bytes used/required on success.
531
* @inode_need_killpriv:
532
* Called when an inode has been changed.
533
* @dentry is the dentry being changed.
534
* Return <0 on error to abort the inode change operation.
535
* Return 0 if inode_killpriv does not need to be called.
536
* Return >0 if inode_killpriv does need to be called.
538
* The setuid bit is being removed. Remove similar security labels.
539
* Called with the dentry->d_inode->i_mutex held.
540
* @dentry is the dentry being changed.
541
* Return 0 on success. If error is returned, then the operation
542
* causing setuid bit removal is failed.
544
* Get the secid associated with the node.
545
* @inode contains a pointer to the inode.
546
* @secid contains a pointer to the location where result will be saved.
547
* In case of failure, @secid will be set to zero.
549
* Security hooks for file operations
552
* Check file permissions before accessing an open file. This hook is
553
* called by various operations that read or write files. A security
554
* module can use this hook to perform additional checking on these
555
* operations, e.g. to revalidate permissions on use to support privilege
556
* bracketing or policy changes. Notice that this hook is used when the
557
* actual read/write operations are performed, whereas the
558
* inode_security_ops hook is called when a file is opened (as well as
559
* many other operations).
560
* Caveat: Although this hook can be used to revalidate permissions for
561
* various system call operations that read or write files, it does not
562
* address the revalidation of permissions for memory-mapped files.
563
* Security modules must handle this separately if they need such
565
* @file contains the file structure being accessed.
566
* @mask contains the requested permissions.
567
* Return 0 if permission is granted.
568
* @file_alloc_security:
569
* Allocate and attach a security structure to the file->f_security field.
570
* The security field is initialized to NULL when the structure is first
572
* @file contains the file structure to secure.
573
* Return 0 if the hook is successful and permission is granted.
574
* @file_free_security:
575
* Deallocate and free any security structures stored in file->f_security.
576
* @file contains the file structure being modified.
578
* @file contains the file structure.
579
* @cmd contains the operation to perform.
580
* @arg contains the operational arguments.
581
* Check permission for an ioctl operation on @file. Note that @arg can
582
* sometimes represents a user space pointer; in other cases, it may be a
583
* simple integer value. When @arg represents a user space pointer, it
584
* should never be used by the security module.
585
* Return 0 if permission is granted.
587
* Check permissions for a mmap operation. The @file may be NULL, e.g.
588
* if mapping anonymous memory.
589
* @file contains the file structure for file to map (may be NULL).
590
* @reqprot contains the protection requested by the application.
591
* @prot contains the protection that will be applied by the kernel.
592
* @flags contains the operational flags.
593
* Return 0 if permission is granted.
595
* Check permissions before changing memory access permissions.
596
* @vma contains the memory region to modify.
597
* @reqprot contains the protection requested by the application.
598
* @prot contains the protection that will be applied by the kernel.
599
* Return 0 if permission is granted.
601
* Check permission before performing file locking operations.
602
* Note: this hook mediates both flock and fcntl style locks.
603
* @file contains the file structure.
604
* @cmd contains the posix-translated lock operation to perform
605
* (e.g. F_RDLCK, F_WRLCK).
606
* Return 0 if permission is granted.
608
* Check permission before allowing the file operation specified by @cmd
609
* from being performed on the file @file. Note that @arg can sometimes
610
* represents a user space pointer; in other cases, it may be a simple
611
* integer value. When @arg represents a user space pointer, it should
612
* never be used by the security module.
613
* @file contains the file structure.
614
* @cmd contains the operation to be performed.
615
* @arg contains the operational arguments.
616
* Return 0 if permission is granted.
618
* Save owner security information (typically from current->security) in
619
* file->f_security for later use by the send_sigiotask hook.
620
* @file contains the file structure to update.
621
* Return 0 on success.
622
* @file_send_sigiotask:
623
* Check permission for the file owner @fown to send SIGIO or SIGURG to the
624
* process @tsk. Note that this hook is sometimes called from interrupt.
625
* Note that the fown_struct, @fown, is never outside the context of a
626
* struct file, so the file structure (and associated security information)
627
* can always be obtained:
628
* container_of(fown, struct file, f_owner)
629
* @tsk contains the structure of task receiving signal.
630
* @fown contains the file owner information.
631
* @sig is the signal that will be sent. When 0, kernel sends SIGIO.
632
* Return 0 if permission is granted.
634
* This hook allows security modules to control the ability of a process
635
* to receive an open file descriptor via socket IPC.
636
* @file contains the file structure being received.
637
* Return 0 if permission is granted.
639
* Security hook for dentry
642
* Save open-time permission checking state for later use upon
643
* file_permission, and recheck access if anything has changed
644
* since inode_permission.
646
* Security hooks for task operations.
649
* Check permission before creating a child process. See the clone(2)
650
* manual page for definitions of the @clone_flags.
651
* @clone_flags contains the flags indicating what should be shared.
652
* Return 0 if permission is granted.
654
* @cred points to the credentials.
655
* @gfp indicates the atomicity of any memory allocations.
656
* Only allocate sufficient memory and attach to @cred such that
657
* cred_transfer() will not get ENOMEM.
659
* @cred points to the credentials.
660
* Deallocate and clear the cred->security field in a set of credentials.
662
* @new points to the new credentials.
663
* @old points to the original credentials.
664
* @gfp indicates the atomicity of any memory allocations.
665
* Prepare a new set of credentials by copying the data from the old set.
667
* @new points to the new credentials.
668
* @old points to the original credentials.
669
* Transfer data from original creds to new creds
671
* Set the credentials for a kernel service to act as (subjective context).
672
* @new points to the credentials to be modified.
673
* @secid specifies the security ID to be set
674
* The current task must be the one that nominated @secid.
675
* Return 0 if successful.
676
* @kernel_create_files_as:
677
* Set the file creation context in a set of credentials to be the same as
678
* the objective context of the specified inode.
679
* @new points to the credentials to be modified.
680
* @inode points to the inode to use as a reference.
681
* The current task must be the one that nominated @inode.
682
* Return 0 if successful.
683
* @kernel_module_request:
684
* Ability to trigger the kernel to automatically upcall to userspace for
685
* userspace to load a kernel module with the given name.
686
* @kmod_name name of the module requested by the kernel
687
* Return 0 if successful.
689
* Update the module's state after setting one or more of the user
690
* identity attributes of the current process. The @flags parameter
691
* indicates which of the set*uid system calls invoked this hook. If
692
* @new is the set of credentials that will be installed. Modifications
693
* should be made to this rather than to @current->cred.
694
* @old is the set of credentials that are being replaces
695
* @flags contains one of the LSM_SETID_* values.
696
* Return 0 on success.
698
* Check permission before setting the process group identifier of the
699
* process @p to @pgid.
700
* @p contains the task_struct for process being modified.
701
* @pgid contains the new pgid.
702
* Return 0 if permission is granted.
704
* Check permission before getting the process group identifier of the
706
* @p contains the task_struct for the process.
707
* Return 0 if permission is granted.
709
* Check permission before getting the session identifier of the process
711
* @p contains the task_struct for the process.
712
* Return 0 if permission is granted.
714
* Retrieve the security identifier of the process @p.
715
* @p contains the task_struct for the process and place is into @secid.
716
* In case of failure, @secid will be set to zero.
719
* Check permission before setting the nice value of @p to @nice.
720
* @p contains the task_struct of process.
721
* @nice contains the new nice value.
722
* Return 0 if permission is granted.
724
* Check permission before setting the ioprio value of @p to @ioprio.
725
* @p contains the task_struct of process.
726
* @ioprio contains the new ioprio value
727
* Return 0 if permission is granted.
729
* Check permission before getting the ioprio value of @p.
730
* @p contains the task_struct of process.
731
* Return 0 if permission is granted.
733
* Check permission before setting the resource limits of the current
734
* process for @resource to @new_rlim. The old resource limit values can
735
* be examined by dereferencing (current->signal->rlim + resource).
736
* @resource contains the resource whose limit is being set.
737
* @new_rlim contains the new limits for @resource.
738
* Return 0 if permission is granted.
739
* @task_setscheduler:
740
* Check permission before setting scheduling policy and/or parameters of
741
* process @p based on @policy and @lp.
742
* @p contains the task_struct for process.
743
* @policy contains the scheduling policy.
744
* @lp contains the scheduling parameters.
745
* Return 0 if permission is granted.
746
* @task_getscheduler:
747
* Check permission before obtaining scheduling information for process
749
* @p contains the task_struct for process.
750
* Return 0 if permission is granted.
752
* Check permission before moving memory owned by process @p.
753
* @p contains the task_struct for process.
754
* Return 0 if permission is granted.
756
* Check permission before sending signal @sig to @p. @info can be NULL,
757
* the constant 1, or a pointer to a siginfo structure. If @info is 1 or
758
* SI_FROMKERNEL(info) is true, then the signal should be viewed as coming
759
* from the kernel and should typically be permitted.
760
* SIGIO signals are handled separately by the send_sigiotask hook in
762
* @p contains the task_struct for process.
763
* @info contains the signal information.
764
* @sig contains the signal value.
765
* @secid contains the sid of the process where the signal originated
766
* Return 0 if permission is granted.
768
* Check permission before allowing a process to reap a child process @p
769
* and collect its status information.
770
* @p contains the task_struct for process.
771
* Return 0 if permission is granted.
773
* Check permission before performing a process control operation on the
775
* @option contains the operation.
776
* @arg2 contains a argument.
777
* @arg3 contains a argument.
778
* @arg4 contains a argument.
779
* @arg5 contains a argument.
780
* Return -ENOSYS if no-one wanted to handle this op, any other value to
781
* cause prctl() to return immediately with that value.
783
* Set the security attributes for an inode based on an associated task's
784
* security attributes, e.g. for /proc/pid inodes.
785
* @p contains the task_struct for the task.
786
* @inode contains the inode structure for the inode.
788
* Security hooks for Netlink messaging.
791
* Save security information for a netlink message so that permission
792
* checking can be performed when the message is processed. The security
793
* information can be saved using the eff_cap field of the
794
* netlink_skb_parms structure. Also may be used to provide fine
795
* grained control over message transmission.
796
* @sk associated sock of task sending the message.,
797
* @skb contains the sk_buff structure for the netlink message.
798
* Return 0 if the information was successfully saved and message
799
* is allowed to be transmitted.
801
* Check permission before processing the received netlink message in
803
* @skb contains the sk_buff structure for the netlink message.
804
* @cap indicates the capability required
805
* Return 0 if permission is granted.
807
* Security hooks for Unix domain networking.
809
* @unix_stream_connect:
810
* Check permissions before establishing a Unix domain stream connection
811
* between @sock and @other.
812
* @sock contains the sock structure.
813
* @other contains the peer sock structure.
814
* @newsk contains the new sock structure.
815
* Return 0 if permission is granted.
817
* Check permissions before connecting or sending datagrams from @sock to
819
* @sock contains the socket structure.
820
* @sock contains the peer socket structure.
821
* Return 0 if permission is granted.
823
* The @unix_stream_connect and @unix_may_send hooks were necessary because
824
* Linux provides an alternative to the conventional file name space for Unix
825
* domain sockets. Whereas binding and connecting to sockets in the file name
826
* space is mediated by the typical file permissions (and caught by the mknod
827
* and permission hooks in inode_security_ops), binding and connecting to
828
* sockets in the abstract name space is completely unmediated. Sufficient
829
* control of Unix domain sockets in the abstract name space isn't possible
830
* using only the socket layer hooks, since we need to know the actual target
831
* socket, which is not looked up until we are inside the af_unix code.
833
* Security hooks for socket operations.
836
* Check permissions prior to creating a new socket.
837
* @family contains the requested protocol family.
838
* @type contains the requested communications type.
839
* @protocol contains the requested protocol.
840
* @kern set to 1 if a kernel socket.
841
* Return 0 if permission is granted.
842
* @socket_post_create:
843
* This hook allows a module to update or allocate a per-socket security
844
* structure. Note that the security field was not added directly to the
845
* socket structure, but rather, the socket security information is stored
846
* in the associated inode. Typically, the inode alloc_security hook will
847
* allocate and and attach security information to
848
* sock->inode->i_security. This hook may be used to update the
849
* sock->inode->i_security field with additional information that wasn't
850
* available when the inode was allocated.
851
* @sock contains the newly created socket structure.
852
* @family contains the requested protocol family.
853
* @type contains the requested communications type.
854
* @protocol contains the requested protocol.
855
* @kern set to 1 if a kernel socket.
857
* Check permission before socket protocol layer bind operation is
858
* performed and the socket @sock is bound to the address specified in the
859
* @address parameter.
860
* @sock contains the socket structure.
861
* @address contains the address to bind to.
862
* @addrlen contains the length of address.
863
* Return 0 if permission is granted.
865
* Check permission before socket protocol layer connect operation
866
* attempts to connect socket @sock to a remote address, @address.
867
* @sock contains the socket structure.
868
* @address contains the address of remote endpoint.
869
* @addrlen contains the length of address.
870
* Return 0 if permission is granted.
872
* Check permission before socket protocol layer listen operation.
873
* @sock contains the socket structure.
874
* @backlog contains the maximum length for the pending connection queue.
875
* Return 0 if permission is granted.
877
* Check permission before accepting a new connection. Note that the new
878
* socket, @newsock, has been created and some information copied to it,
879
* but the accept operation has not actually been performed.
880
* @sock contains the listening socket structure.
881
* @newsock contains the newly created server socket for connection.
882
* Return 0 if permission is granted.
884
* Check permission before transmitting a message to another socket.
885
* @sock contains the socket structure.
886
* @msg contains the message to be transmitted.
887
* @size contains the size of message.
888
* Return 0 if permission is granted.
890
* Check permission before receiving a message from a socket.
891
* @sock contains the socket structure.
892
* @msg contains the message structure.
893
* @size contains the size of message structure.
894
* @flags contains the operational flags.
895
* Return 0 if permission is granted.
896
* @socket_getsockname:
897
* Check permission before the local address (name) of the socket object
898
* @sock is retrieved.
899
* @sock contains the socket structure.
900
* Return 0 if permission is granted.
901
* @socket_getpeername:
902
* Check permission before the remote address (name) of a socket object
903
* @sock is retrieved.
904
* @sock contains the socket structure.
905
* Return 0 if permission is granted.
906
* @socket_getsockopt:
907
* Check permissions before retrieving the options associated with socket
909
* @sock contains the socket structure.
910
* @level contains the protocol level to retrieve option from.
911
* @optname contains the name of option to retrieve.
912
* Return 0 if permission is granted.
913
* @socket_setsockopt:
914
* Check permissions before setting the options associated with socket
916
* @sock contains the socket structure.
917
* @level contains the protocol level to set options for.
918
* @optname contains the name of the option to set.
919
* Return 0 if permission is granted.
921
* Checks permission before all or part of a connection on the socket
922
* @sock is shut down.
923
* @sock contains the socket structure.
924
* @how contains the flag indicating how future sends and receives are handled.
925
* Return 0 if permission is granted.
926
* @socket_sock_rcv_skb:
927
* Check permissions on incoming network packets. This hook is distinct
928
* from Netfilter's IP input hooks since it is the first time that the
929
* incoming sk_buff @skb has been associated with a particular socket, @sk.
930
* Must not sleep inside this hook because some callers hold spinlocks.
931
* @sk contains the sock (not socket) associated with the incoming sk_buff.
932
* @skb contains the incoming network data.
933
* @socket_getpeersec_stream:
934
* This hook allows the security module to provide peer socket security
935
* state for unix or connected tcp sockets to userspace via getsockopt
936
* SO_GETPEERSEC. For tcp sockets this can be meaningful if the
937
* socket is associated with an ipsec SA.
938
* @sock is the local socket.
939
* @optval userspace memory where the security state is to be copied.
940
* @optlen userspace int where the module should copy the actual length
941
* of the security state.
942
* @len as input is the maximum length to copy to userspace provided
944
* Return 0 if all is well, otherwise, typical getsockopt return
946
* @socket_getpeersec_dgram:
947
* This hook allows the security module to provide peer socket security
948
* state for udp sockets on a per-packet basis to userspace via
949
* getsockopt SO_GETPEERSEC. The application must first have indicated
950
* the IP_PASSSEC option via getsockopt. It can then retrieve the
951
* security state returned by this hook for a packet via the SCM_SECURITY
952
* ancillary message type.
953
* @skb is the skbuff for the packet being queried
954
* @secdata is a pointer to a buffer in which to copy the security data
955
* @seclen is the maximum length for @secdata
956
* Return 0 on success, error on failure.
957
* @sk_alloc_security:
958
* Allocate and attach a security structure to the sk->sk_security field,
959
* which is used to copy security attributes between local stream sockets.
961
* Deallocate security structure.
962
* @sk_clone_security:
963
* Clone/copy security structure.
965
* Retrieve the LSM-specific secid for the sock to enable caching of network
968
* Sets the socket's isec sid to the sock's sid.
969
* @inet_conn_request:
970
* Sets the openreq's sid to socket's sid with MLS portion taken from peer sid.
972
* Sets the new child socket's sid to the openreq sid.
973
* @inet_conn_established:
974
* Sets the connection's peersid to the secmark on skb.
975
* @secmark_relabel_packet:
976
* check if the process should be allowed to relabel packets to the given secid
977
* @security_secmark_refcount_inc
978
* tells the LSM to increment the number of secmark labeling rules loaded
979
* @security_secmark_refcount_dec
980
* tells the LSM to decrement the number of secmark labeling rules loaded
981
* @req_classify_flow:
982
* Sets the flow's sid to the openreq sid.
984
* Check permissions prior to creating a new TUN device.
985
* @tun_dev_post_create:
986
* This hook allows a module to update or allocate a per-socket security
988
* @sk contains the newly created sock structure.
990
* Check permissions prior to attaching to a persistent TUN device. This
991
* hook can also be used by the module to update any security state
992
* associated with the TUN device's sock structure.
993
* @sk contains the existing sock structure.
995
* Security hooks for XFRM operations.
997
* @xfrm_policy_alloc_security:
998
* @ctxp is a pointer to the xfrm_sec_ctx being added to Security Policy
999
* Database used by the XFRM system.
1000
* @sec_ctx contains the security context information being provided by
1001
* the user-level policy update program (e.g., setkey).
1002
* Allocate a security structure to the xp->security field; the security
1003
* field is initialized to NULL when the xfrm_policy is allocated.
1004
* Return 0 if operation was successful (memory to allocate, legal context)
1005
* @xfrm_policy_clone_security:
1006
* @old_ctx contains an existing xfrm_sec_ctx.
1007
* @new_ctxp contains a new xfrm_sec_ctx being cloned from old.
1008
* Allocate a security structure in new_ctxp that contains the
1009
* information from the old_ctx structure.
1010
* Return 0 if operation was successful (memory to allocate).
1011
* @xfrm_policy_free_security:
1012
* @ctx contains the xfrm_sec_ctx
1013
* Deallocate xp->security.
1014
* @xfrm_policy_delete_security:
1015
* @ctx contains the xfrm_sec_ctx.
1016
* Authorize deletion of xp->security.
1017
* @xfrm_state_alloc_security:
1018
* @x contains the xfrm_state being added to the Security Association
1019
* Database by the XFRM system.
1020
* @sec_ctx contains the security context information being provided by
1021
* the user-level SA generation program (e.g., setkey or racoon).
1022
* @secid contains the secid from which to take the mls portion of the context.
1023
* Allocate a security structure to the x->security field; the security
1024
* field is initialized to NULL when the xfrm_state is allocated. Set the
1025
* context to correspond to either sec_ctx or polsec, with the mls portion
1026
* taken from secid in the latter case.
1027
* Return 0 if operation was successful (memory to allocate, legal context).
1028
* @xfrm_state_free_security:
1029
* @x contains the xfrm_state.
1030
* Deallocate x->security.
1031
* @xfrm_state_delete_security:
1032
* @x contains the xfrm_state.
1033
* Authorize deletion of x->security.
1034
* @xfrm_policy_lookup:
1035
* @ctx contains the xfrm_sec_ctx for which the access control is being
1037
* @fl_secid contains the flow security label that is used to authorize
1038
* access to the policy xp.
1039
* @dir contains the direction of the flow (input or output).
1040
* Check permission when a flow selects a xfrm_policy for processing
1041
* XFRMs on a packet. The hook is called when selecting either a
1042
* per-socket policy or a generic xfrm policy.
1043
* Return 0 if permission is granted, -ESRCH otherwise, or -errno
1045
* @xfrm_state_pol_flow_match:
1046
* @x contains the state to match.
1047
* @xp contains the policy to check for a match.
1048
* @fl contains the flow to check for a match.
1049
* Return 1 if there is a match.
1050
* @xfrm_decode_session:
1051
* @skb points to skb to decode.
1052
* @secid points to the flow key secid to set.
1053
* @ckall says if all xfrms used should be checked for same secid.
1054
* Return 0 if ckall is zero or all xfrms used have the same secid.
1056
* Security hooks affecting all Key Management operations
1059
* Permit allocation of a key and assign security data. Note that key does
1060
* not have a serial number assigned at this point.
1061
* @key points to the key.
1062
* @flags is the allocation flags
1063
* Return 0 if permission is granted, -ve error otherwise.
1065
* Notification of destruction; free security data.
1066
* @key points to the key.
1069
* See whether a specific operational right is granted to a process on a
1071
* @key_ref refers to the key (key pointer + possession attribute bit).
1072
* @cred points to the credentials to provide the context against which to
1073
* evaluate the security data on the key.
1074
* @perm describes the combination of permissions required of this key.
1075
* Return 0 if permission is granted, -ve error otherwise.
1077
* Get a textual representation of the security context attached to a key
1078
* for the purposes of honouring KEYCTL_GETSECURITY. This function
1079
* allocates the storage for the NUL-terminated string and the caller
1081
* @key points to the key to be queried.
1082
* @_buffer points to a pointer that should be set to point to the
1083
* resulting string (if no label or an error occurs).
1084
* Return the length of the string (including terminating NUL) or -ve if
1086
* May also return 0 (and a NULL buffer pointer) if there is no label.
1088
* Security hooks affecting all System V IPC operations.
1091
* Check permissions for access to IPC
1092
* @ipcp contains the kernel IPC permission structure
1093
* @flag contains the desired (requested) permission set
1094
* Return 0 if permission is granted.
1096
* Get the secid associated with the ipc object.
1097
* @ipcp contains the kernel IPC permission structure.
1098
* @secid contains a pointer to the location where result will be saved.
1099
* In case of failure, @secid will be set to zero.
1101
* Security hooks for individual messages held in System V IPC message queues
1102
* @msg_msg_alloc_security:
1103
* Allocate and attach a security structure to the msg->security field.
1104
* The security field is initialized to NULL when the structure is first
1106
* @msg contains the message structure to be modified.
1107
* Return 0 if operation was successful and permission is granted.
1108
* @msg_msg_free_security:
1109
* Deallocate the security structure for this message.
1110
* @msg contains the message structure to be modified.
1112
* Security hooks for System V IPC Message Queues
1114
* @msg_queue_alloc_security:
1115
* Allocate and attach a security structure to the
1116
* msq->q_perm.security field. The security field is initialized to
1117
* NULL when the structure is first created.
1118
* @msq contains the message queue structure to be modified.
1119
* Return 0 if operation was successful and permission is granted.
1120
* @msg_queue_free_security:
1121
* Deallocate security structure for this message queue.
1122
* @msq contains the message queue structure to be modified.
1123
* @msg_queue_associate:
1124
* Check permission when a message queue is requested through the
1125
* msgget system call. This hook is only called when returning the
1126
* message queue identifier for an existing message queue, not when a
1127
* new message queue is created.
1128
* @msq contains the message queue to act upon.
1129
* @msqflg contains the operation control flags.
1130
* Return 0 if permission is granted.
1131
* @msg_queue_msgctl:
1132
* Check permission when a message control operation specified by @cmd
1133
* is to be performed on the message queue @msq.
1134
* The @msq may be NULL, e.g. for IPC_INFO or MSG_INFO.
1135
* @msq contains the message queue to act upon. May be NULL.
1136
* @cmd contains the operation to be performed.
1137
* Return 0 if permission is granted.
1138
* @msg_queue_msgsnd:
1139
* Check permission before a message, @msg, is enqueued on the message
1141
* @msq contains the message queue to send message to.
1142
* @msg contains the message to be enqueued.
1143
* @msqflg contains operational flags.
1144
* Return 0 if permission is granted.
1145
* @msg_queue_msgrcv:
1146
* Check permission before a message, @msg, is removed from the message
1147
* queue, @msq. The @target task structure contains a pointer to the
1148
* process that will be receiving the message (not equal to the current
1149
* process when inline receives are being performed).
1150
* @msq contains the message queue to retrieve message from.
1151
* @msg contains the message destination.
1152
* @target contains the task structure for recipient process.
1153
* @type contains the type of message requested.
1154
* @mode contains the operational flags.
1155
* Return 0 if permission is granted.
1157
* Security hooks for System V Shared Memory Segments
1159
* @shm_alloc_security:
1160
* Allocate and attach a security structure to the shp->shm_perm.security
1161
* field. The security field is initialized to NULL when the structure is
1163
* @shp contains the shared memory structure to be modified.
1164
* Return 0 if operation was successful and permission is granted.
1165
* @shm_free_security:
1166
* Deallocate the security struct for this memory segment.
1167
* @shp contains the shared memory structure to be modified.
1169
* Check permission when a shared memory region is requested through the
1170
* shmget system call. This hook is only called when returning the shared
1171
* memory region identifier for an existing region, not when a new shared
1172
* memory region is created.
1173
* @shp contains the shared memory structure to be modified.
1174
* @shmflg contains the operation control flags.
1175
* Return 0 if permission is granted.
1177
* Check permission when a shared memory control operation specified by
1178
* @cmd is to be performed on the shared memory region @shp.
1179
* The @shp may be NULL, e.g. for IPC_INFO or SHM_INFO.
1180
* @shp contains shared memory structure to be modified.
1181
* @cmd contains the operation to be performed.
1182
* Return 0 if permission is granted.
1184
* Check permissions prior to allowing the shmat system call to attach the
1185
* shared memory segment @shp to the data segment of the calling process.
1186
* The attaching address is specified by @shmaddr.
1187
* @shp contains the shared memory structure to be modified.
1188
* @shmaddr contains the address to attach memory region to.
1189
* @shmflg contains the operational flags.
1190
* Return 0 if permission is granted.
1192
* Security hooks for System V Semaphores
1194
* @sem_alloc_security:
1195
* Allocate and attach a security structure to the sma->sem_perm.security
1196
* field. The security field is initialized to NULL when the structure is
1198
* @sma contains the semaphore structure
1199
* Return 0 if operation was successful and permission is granted.
1200
* @sem_free_security:
1201
* deallocate security struct for this semaphore
1202
* @sma contains the semaphore structure.
1204
* Check permission when a semaphore is requested through the semget
1205
* system call. This hook is only called when returning the semaphore
1206
* identifier for an existing semaphore, not when a new one must be
1208
* @sma contains the semaphore structure.
1209
* @semflg contains the operation control flags.
1210
* Return 0 if permission is granted.
1212
* Check permission when a semaphore operation specified by @cmd is to be
1213
* performed on the semaphore @sma. The @sma may be NULL, e.g. for
1214
* IPC_INFO or SEM_INFO.
1215
* @sma contains the semaphore structure. May be NULL.
1216
* @cmd contains the operation to be performed.
1217
* Return 0 if permission is granted.
1219
* Check permissions before performing operations on members of the
1220
* semaphore set @sma. If the @alter flag is nonzero, the semaphore set
1222
* @sma contains the semaphore structure.
1223
* @sops contains the operations to perform.
1224
* @nsops contains the number of operations to perform.
1225
* @alter contains the flag indicating whether changes are to be made.
1226
* Return 0 if permission is granted.
1228
* @ptrace_access_check:
1229
* Check permission before allowing the current process to trace the
1231
* Security modules may also want to perform a process tracing check
1232
* during an execve in the set_security or apply_creds hooks of
1233
* tracing check during an execve in the bprm_set_creds hook of
1234
* binprm_security_ops if the process is being traced and its security
1235
* attributes would be changed by the execve.
1236
* @child contains the task_struct structure for the target process.
1237
* @mode contains the PTRACE_MODE flags indicating the form of access.
1238
* Return 0 if permission is granted.
1240
* Check that the @parent process has sufficient permission to trace the
1241
* current process before allowing the current process to present itself
1242
* to the @parent process for tracing.
1243
* The parent process will still have to undergo the ptrace_access_check
1244
* checks before it is allowed to trace this one.
1245
* @parent contains the task_struct structure for debugger process.
1246
* Return 0 if permission is granted.
1248
* Get the @effective, @inheritable, and @permitted capability sets for
1249
* the @target process. The hook may also perform permission checking to
1250
* determine if the current process is allowed to see the capability sets
1251
* of the @target process.
1252
* @target contains the task_struct structure for target process.
1253
* @effective contains the effective capability set.
1254
* @inheritable contains the inheritable capability set.
1255
* @permitted contains the permitted capability set.
1256
* Return 0 if the capability sets were successfully obtained.
1258
* Set the @effective, @inheritable, and @permitted capability sets for
1259
* the current process.
1260
* @new contains the new credentials structure for target process.
1261
* @old contains the current credentials structure for target process.
1262
* @effective contains the effective capability set.
1263
* @inheritable contains the inheritable capability set.
1264
* @permitted contains the permitted capability set.
1265
* Return 0 and update @new if permission is granted.
1267
* Check whether the @tsk process has the @cap capability in the indicated
1269
* @tsk contains the task_struct for the process.
1270
* @cred contains the credentials to use.
1271
* @ns contains the user namespace we want the capability in
1272
* @cap contains the capability <include/linux/capability.h>.
1273
* @audit: Whether to write an audit message or not
1274
* Return 0 if the capability is granted for @tsk.
1276
* Check permission before accessing the kernel message ring or changing
1277
* logging to the console.
1278
* See the syslog(2) manual page for an explanation of the @type values.
1279
* @type contains the type of action.
1280
* @from_file indicates the context of action (if it came from /proc).
1281
* Return 0 if permission is granted.
1283
* Check permission to change the system time.
1284
* struct timespec and timezone are defined in include/linux/time.h
1285
* @ts contains new time
1286
* @tz contains new timezone
1287
* Return 0 if permission is granted.
1288
* @vm_enough_memory:
1289
* Check permissions for allocating a new virtual mapping.
1290
* @mm contains the mm struct it is being added to.
1291
* @pages contains the number of pages.
1292
* Return 0 if permission is granted.
1295
* Convert secid to security context. If secdata is NULL the length of
1296
* the result will be returned in seclen, but no secdata will be returned.
1297
* This does mean that the length could change between calls to check the
1298
* length and the next call which actually allocates and returns the secdata.
1299
* @secid contains the security ID.
1300
* @secdata contains the pointer that stores the converted security context.
1301
* @seclen pointer which contains the length of the data
1303
* Convert security context to secid.
1304
* @secid contains the pointer to the generated security ID.
1305
* @secdata contains the security context.
1308
* Release the security context.
1309
* @secdata contains the security context.
1310
* @seclen contains the length of the security context.
1312
* Security hooks for Audit
1315
* Allocate and initialize an LSM audit rule structure.
1316
* @field contains the required Audit action. Fields flags are defined in include/linux/audit.h
1317
* @op contains the operator the rule uses.
1318
* @rulestr contains the context where the rule will be applied to.
1319
* @lsmrule contains a pointer to receive the result.
1320
* Return 0 if @lsmrule has been successfully set,
1321
* -EINVAL in case of an invalid rule.
1323
* @audit_rule_known:
1324
* Specifies whether given @rule contains any fields related to current LSM.
1325
* @rule contains the audit rule of interest.
1326
* Return 1 in case of relation found, 0 otherwise.
1328
* @audit_rule_match:
1329
* Determine if given @secid matches a rule previously approved
1330
* by @audit_rule_known.
1331
* @secid contains the security id in question.
1332
* @field contains the field which relates to current LSM.
1333
* @op contains the operator that will be used for matching.
1334
* @rule points to the audit rule that will be checked against.
1335
* @actx points to the audit context associated with the check.
1336
* Return 1 if secid matches the rule, 0 if it does not, -ERRNO on failure.
1339
* Deallocate the LSM audit rule structure previously allocated by
1341
* @rule contains the allocated rule
1343
* @inode_notifysecctx:
1344
* Notify the security module of what the security context of an inode
1345
* should be. Initializes the incore security context managed by the
1346
* security module for this inode. Example usage: NFS client invokes
1347
* this hook to initialize the security context in its incore inode to the
1348
* value provided by the server for the file when the server returned the
1349
* file's attributes to the client.
1351
* Must be called with inode->i_mutex locked.
1353
* @inode we wish to set the security context of.
1354
* @ctx contains the string which we wish to set in the inode.
1355
* @ctxlen contains the length of @ctx.
1358
* Change the security context of an inode. Updates the
1359
* incore security context managed by the security module and invokes the
1360
* fs code as needed (via __vfs_setxattr_noperm) to update any backing
1361
* xattrs that represent the context. Example usage: NFS server invokes
1362
* this hook to change the security context in its incore inode and on the
1363
* backing filesystem to a value provided by the client on a SETATTR
1366
* Must be called with inode->i_mutex locked.
1368
* @dentry contains the inode we wish to set the security context of.
1369
* @ctx contains the string which we wish to set in the inode.
1370
* @ctxlen contains the length of @ctx.
1373
* Returns a string containing all relavent security context information
1375
* @inode we wish to get the security context of.
1376
* @ctx is a pointer in which to place the allocated security context.
1377
* @ctxlen points to the place to put the length of @ctx.
1378
* This is the main security structure.
1380
struct security_operations {
1381
char name[SECURITY_NAME_MAX + 1];
1383
int (*ptrace_access_check) (struct task_struct *child, unsigned int mode);
1384
int (*ptrace_traceme) (struct task_struct *parent);
1385
int (*capget) (struct task_struct *target,
1386
kernel_cap_t *effective,
1387
kernel_cap_t *inheritable, kernel_cap_t *permitted);
1388
int (*capset) (struct cred *new,
1389
const struct cred *old,
1390
const kernel_cap_t *effective,
1391
const kernel_cap_t *inheritable,
1392
const kernel_cap_t *permitted);
1393
int (*capable) (struct task_struct *tsk, const struct cred *cred,
1394
struct user_namespace *ns, int cap, int audit);
1395
int (*quotactl) (int cmds, int type, int id, struct super_block *sb);
1396
int (*quota_on) (struct dentry *dentry);
1397
int (*syslog) (int type);
1398
int (*settime) (const struct timespec *ts, const struct timezone *tz);
1399
int (*vm_enough_memory) (struct mm_struct *mm, long pages);
1401
int (*bprm_set_creds) (struct linux_binprm *bprm);
1402
int (*bprm_check_security) (struct linux_binprm *bprm);
1403
int (*bprm_secureexec) (struct linux_binprm *bprm);
1404
void (*bprm_committing_creds) (struct linux_binprm *bprm);
1405
void (*bprm_committed_creds) (struct linux_binprm *bprm);
1407
int (*sb_alloc_security) (struct super_block *sb);
1408
void (*sb_free_security) (struct super_block *sb);
1409
int (*sb_copy_data) (char *orig, char *copy);
1410
int (*sb_remount) (struct super_block *sb, void *data);
1411
int (*sb_kern_mount) (struct super_block *sb, int flags, void *data);
1412
int (*sb_show_options) (struct seq_file *m, struct super_block *sb);
1413
int (*sb_statfs) (struct dentry *dentry);
1414
int (*sb_mount) (char *dev_name, struct path *path,
1415
char *type, unsigned long flags, void *data);
1416
int (*sb_umount) (struct vfsmount *mnt, int flags);
1417
int (*sb_pivotroot) (struct path *old_path,
1418
struct path *new_path);
1419
int (*sb_set_mnt_opts) (struct super_block *sb,
1420
struct security_mnt_opts *opts);
1421
void (*sb_clone_mnt_opts) (const struct super_block *oldsb,
1422
struct super_block *newsb);
1423
int (*sb_parse_opts_str) (char *options, struct security_mnt_opts *opts);
1425
#ifdef CONFIG_SECURITY_PATH
1426
int (*path_unlink) (struct path *dir, struct dentry *dentry);
1427
int (*path_mkdir) (struct path *dir, struct dentry *dentry, int mode);
1428
int (*path_rmdir) (struct path *dir, struct dentry *dentry);
1429
int (*path_mknod) (struct path *dir, struct dentry *dentry, int mode,
1431
int (*path_truncate) (struct path *path);
1432
int (*path_symlink) (struct path *dir, struct dentry *dentry,
1433
const char *old_name);
1434
int (*path_link) (struct dentry *old_dentry, struct path *new_dir,
1435
struct dentry *new_dentry);
1436
int (*path_rename) (struct path *old_dir, struct dentry *old_dentry,
1437
struct path *new_dir, struct dentry *new_dentry);
1438
int (*path_chmod) (struct dentry *dentry, struct vfsmount *mnt,
1440
int (*path_chown) (struct path *path, uid_t uid, gid_t gid);
1441
int (*path_chroot) (struct path *path);
1444
int (*inode_alloc_security) (struct inode *inode);
1445
void (*inode_free_security) (struct inode *inode);
1446
int (*inode_init_security) (struct inode *inode, struct inode *dir,
1447
const struct qstr *qstr, char **name,
1448
void **value, size_t *len);
1449
int (*inode_create) (struct inode *dir,
1450
struct dentry *dentry, int mode);
1451
int (*inode_link) (struct dentry *old_dentry,
1452
struct inode *dir, struct dentry *new_dentry);
1453
int (*inode_unlink) (struct inode *dir, struct dentry *dentry);
1454
int (*inode_symlink) (struct inode *dir,
1455
struct dentry *dentry, const char *old_name);
1456
int (*inode_mkdir) (struct inode *dir, struct dentry *dentry, int mode);
1457
int (*inode_rmdir) (struct inode *dir, struct dentry *dentry);
1458
int (*inode_mknod) (struct inode *dir, struct dentry *dentry,
1459
int mode, dev_t dev);
1460
int (*inode_rename) (struct inode *old_dir, struct dentry *old_dentry,
1461
struct inode *new_dir, struct dentry *new_dentry);
1462
int (*inode_readlink) (struct dentry *dentry);
1463
int (*inode_follow_link) (struct dentry *dentry, struct nameidata *nd);
1464
int (*inode_permission) (struct inode *inode, int mask);
1465
int (*inode_setattr) (struct dentry *dentry, struct iattr *attr);
1466
int (*inode_getattr) (struct vfsmount *mnt, struct dentry *dentry);
1467
int (*inode_setxattr) (struct dentry *dentry, const char *name,
1468
const void *value, size_t size, int flags);
1469
void (*inode_post_setxattr) (struct dentry *dentry, const char *name,
1470
const void *value, size_t size, int flags);
1471
int (*inode_getxattr) (struct dentry *dentry, const char *name);
1472
int (*inode_listxattr) (struct dentry *dentry);
1473
int (*inode_removexattr) (struct dentry *dentry, const char *name);
1474
int (*inode_need_killpriv) (struct dentry *dentry);
1475
int (*inode_killpriv) (struct dentry *dentry);
1476
int (*inode_getsecurity) (const struct inode *inode, const char *name, void **buffer, bool alloc);
1477
int (*inode_setsecurity) (struct inode *inode, const char *name, const void *value, size_t size, int flags);
1478
int (*inode_listsecurity) (struct inode *inode, char *buffer, size_t buffer_size);
1479
void (*inode_getsecid) (const struct inode *inode, u32 *secid);
1481
int (*file_permission) (struct file *file, int mask);
1482
int (*file_alloc_security) (struct file *file);
1483
void (*file_free_security) (struct file *file);
1484
int (*file_ioctl) (struct file *file, unsigned int cmd,
1486
int (*file_mmap) (struct file *file,
1487
unsigned long reqprot, unsigned long prot,
1488
unsigned long flags, unsigned long addr,
1489
unsigned long addr_only);
1490
int (*file_mprotect) (struct vm_area_struct *vma,
1491
unsigned long reqprot,
1492
unsigned long prot);
1493
int (*file_lock) (struct file *file, unsigned int cmd);
1494
int (*file_fcntl) (struct file *file, unsigned int cmd,
1496
int (*file_set_fowner) (struct file *file);
1497
int (*file_send_sigiotask) (struct task_struct *tsk,
1498
struct fown_struct *fown, int sig);
1499
int (*file_receive) (struct file *file);
1500
int (*dentry_open) (struct file *file, const struct cred *cred);
1502
int (*task_create) (unsigned long clone_flags);
1503
int (*cred_alloc_blank) (struct cred *cred, gfp_t gfp);
1504
void (*cred_free) (struct cred *cred);
1505
int (*cred_prepare)(struct cred *new, const struct cred *old,
1507
void (*cred_transfer)(struct cred *new, const struct cred *old);
1508
int (*kernel_act_as)(struct cred *new, u32 secid);
1509
int (*kernel_create_files_as)(struct cred *new, struct inode *inode);
1510
int (*kernel_module_request)(char *kmod_name);
1511
int (*task_fix_setuid) (struct cred *new, const struct cred *old,
1513
int (*task_setpgid) (struct task_struct *p, pid_t pgid);
1514
int (*task_getpgid) (struct task_struct *p);
1515
int (*task_getsid) (struct task_struct *p);
1516
void (*task_getsecid) (struct task_struct *p, u32 *secid);
1517
int (*task_setnice) (struct task_struct *p, int nice);
1518
int (*task_setioprio) (struct task_struct *p, int ioprio);
1519
int (*task_getioprio) (struct task_struct *p);
1520
int (*task_setrlimit) (struct task_struct *p, unsigned int resource,
1521
struct rlimit *new_rlim);
1522
int (*task_setscheduler) (struct task_struct *p);
1523
int (*task_getscheduler) (struct task_struct *p);
1524
int (*task_movememory) (struct task_struct *p);
1525
int (*task_kill) (struct task_struct *p,
1526
struct siginfo *info, int sig, u32 secid);
1527
int (*task_wait) (struct task_struct *p);
1528
int (*task_prctl) (int option, unsigned long arg2,
1529
unsigned long arg3, unsigned long arg4,
1530
unsigned long arg5);
1531
void (*task_to_inode) (struct task_struct *p, struct inode *inode);
1533
int (*ipc_permission) (struct kern_ipc_perm *ipcp, short flag);
1534
void (*ipc_getsecid) (struct kern_ipc_perm *ipcp, u32 *secid);
1536
int (*msg_msg_alloc_security) (struct msg_msg *msg);
1537
void (*msg_msg_free_security) (struct msg_msg *msg);
1539
int (*msg_queue_alloc_security) (struct msg_queue *msq);
1540
void (*msg_queue_free_security) (struct msg_queue *msq);
1541
int (*msg_queue_associate) (struct msg_queue *msq, int msqflg);
1542
int (*msg_queue_msgctl) (struct msg_queue *msq, int cmd);
1543
int (*msg_queue_msgsnd) (struct msg_queue *msq,
1544
struct msg_msg *msg, int msqflg);
1545
int (*msg_queue_msgrcv) (struct msg_queue *msq,
1546
struct msg_msg *msg,
1547
struct task_struct *target,
1548
long type, int mode);
1550
int (*shm_alloc_security) (struct shmid_kernel *shp);
1551
void (*shm_free_security) (struct shmid_kernel *shp);
1552
int (*shm_associate) (struct shmid_kernel *shp, int shmflg);
1553
int (*shm_shmctl) (struct shmid_kernel *shp, int cmd);
1554
int (*shm_shmat) (struct shmid_kernel *shp,
1555
char __user *shmaddr, int shmflg);
1557
int (*sem_alloc_security) (struct sem_array *sma);
1558
void (*sem_free_security) (struct sem_array *sma);
1559
int (*sem_associate) (struct sem_array *sma, int semflg);
1560
int (*sem_semctl) (struct sem_array *sma, int cmd);
1561
int (*sem_semop) (struct sem_array *sma,
1562
struct sembuf *sops, unsigned nsops, int alter);
1564
int (*netlink_send) (struct sock *sk, struct sk_buff *skb);
1565
int (*netlink_recv) (struct sk_buff *skb, int cap);
1567
void (*d_instantiate) (struct dentry *dentry, struct inode *inode);
1569
int (*getprocattr) (struct task_struct *p, char *name, char **value);
1570
int (*setprocattr) (struct task_struct *p, char *name, void *value, size_t size);
1571
int (*secid_to_secctx) (u32 secid, char **secdata, u32 *seclen);
1572
int (*secctx_to_secid) (const char *secdata, u32 seclen, u32 *secid);
1573
void (*release_secctx) (char *secdata, u32 seclen);
1575
int (*inode_notifysecctx)(struct inode *inode, void *ctx, u32 ctxlen);
1576
int (*inode_setsecctx)(struct dentry *dentry, void *ctx, u32 ctxlen);
1577
int (*inode_getsecctx)(struct inode *inode, void **ctx, u32 *ctxlen);
1579
#ifdef CONFIG_SECURITY_NETWORK
1580
int (*unix_stream_connect) (struct sock *sock, struct sock *other, struct sock *newsk);
1581
int (*unix_may_send) (struct socket *sock, struct socket *other);
1583
int (*socket_create) (int family, int type, int protocol, int kern);
1584
int (*socket_post_create) (struct socket *sock, int family,
1585
int type, int protocol, int kern);
1586
int (*socket_bind) (struct socket *sock,
1587
struct sockaddr *address, int addrlen);
1588
int (*socket_connect) (struct socket *sock,
1589
struct sockaddr *address, int addrlen);
1590
int (*socket_listen) (struct socket *sock, int backlog);
1591
int (*socket_accept) (struct socket *sock, struct socket *newsock);
1592
int (*socket_sendmsg) (struct socket *sock,
1593
struct msghdr *msg, int size);
1594
int (*socket_recvmsg) (struct socket *sock,
1595
struct msghdr *msg, int size, int flags);
1596
int (*socket_getsockname) (struct socket *sock);
1597
int (*socket_getpeername) (struct socket *sock);
1598
int (*socket_getsockopt) (struct socket *sock, int level, int optname);
1599
int (*socket_setsockopt) (struct socket *sock, int level, int optname);
1600
int (*socket_shutdown) (struct socket *sock, int how);
1601
int (*socket_sock_rcv_skb) (struct sock *sk, struct sk_buff *skb);
1602
int (*socket_getpeersec_stream) (struct socket *sock, char __user *optval, int __user *optlen, unsigned len);
1603
int (*socket_getpeersec_dgram) (struct socket *sock, struct sk_buff *skb, u32 *secid);
1604
int (*sk_alloc_security) (struct sock *sk, int family, gfp_t priority);
1605
void (*sk_free_security) (struct sock *sk);
1606
void (*sk_clone_security) (const struct sock *sk, struct sock *newsk);
1607
void (*sk_getsecid) (struct sock *sk, u32 *secid);
1608
void (*sock_graft) (struct sock *sk, struct socket *parent);
1609
int (*inet_conn_request) (struct sock *sk, struct sk_buff *skb,
1610
struct request_sock *req);
1611
void (*inet_csk_clone) (struct sock *newsk, const struct request_sock *req);
1612
void (*inet_conn_established) (struct sock *sk, struct sk_buff *skb);
1613
int (*secmark_relabel_packet) (u32 secid);
1614
void (*secmark_refcount_inc) (void);
1615
void (*secmark_refcount_dec) (void);
1616
void (*req_classify_flow) (const struct request_sock *req, struct flowi *fl);
1617
int (*tun_dev_create)(void);
1618
void (*tun_dev_post_create)(struct sock *sk);
1619
int (*tun_dev_attach)(struct sock *sk);
1620
#endif /* CONFIG_SECURITY_NETWORK */
1622
#ifdef CONFIG_SECURITY_NETWORK_XFRM
1623
int (*xfrm_policy_alloc_security) (struct xfrm_sec_ctx **ctxp,
1624
struct xfrm_user_sec_ctx *sec_ctx);
1625
int (*xfrm_policy_clone_security) (struct xfrm_sec_ctx *old_ctx, struct xfrm_sec_ctx **new_ctx);
1626
void (*xfrm_policy_free_security) (struct xfrm_sec_ctx *ctx);
1627
int (*xfrm_policy_delete_security) (struct xfrm_sec_ctx *ctx);
1628
int (*xfrm_state_alloc_security) (struct xfrm_state *x,
1629
struct xfrm_user_sec_ctx *sec_ctx,
1631
void (*xfrm_state_free_security) (struct xfrm_state *x);
1632
int (*xfrm_state_delete_security) (struct xfrm_state *x);
1633
int (*xfrm_policy_lookup) (struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir);
1634
int (*xfrm_state_pol_flow_match) (struct xfrm_state *x,
1635
struct xfrm_policy *xp,
1636
const struct flowi *fl);
1637
int (*xfrm_decode_session) (struct sk_buff *skb, u32 *secid, int ckall);
1638
#endif /* CONFIG_SECURITY_NETWORK_XFRM */
1640
/* key management security hooks */
1642
int (*key_alloc) (struct key *key, const struct cred *cred, unsigned long flags);
1643
void (*key_free) (struct key *key);
1644
int (*key_permission) (key_ref_t key_ref,
1645
const struct cred *cred,
1647
int (*key_getsecurity)(struct key *key, char **_buffer);
1648
#endif /* CONFIG_KEYS */
1651
int (*audit_rule_init) (u32 field, u32 op, char *rulestr, void **lsmrule);
1652
int (*audit_rule_known) (struct audit_krule *krule);
1653
int (*audit_rule_match) (u32 secid, u32 field, u32 op, void *lsmrule,
1654
struct audit_context *actx);
1655
void (*audit_rule_free) (void *lsmrule);
1656
#endif /* CONFIG_AUDIT */
1660
extern int security_init(void);
1661
extern int security_module_enable(struct security_operations *ops);
1662
extern int register_security(struct security_operations *ops);
1663
extern void __init security_fixup_ops(struct security_operations *ops);
1666
/* Security operations */
1667
int security_ptrace_access_check(struct task_struct *child, unsigned int mode);
1668
int security_ptrace_traceme(struct task_struct *parent);
1669
int security_capget(struct task_struct *target,
1670
kernel_cap_t *effective,
1671
kernel_cap_t *inheritable,
1672
kernel_cap_t *permitted);
1673
int security_capset(struct cred *new, const struct cred *old,
1674
const kernel_cap_t *effective,
1675
const kernel_cap_t *inheritable,
1676
const kernel_cap_t *permitted);
1677
int security_capable(struct user_namespace *ns, const struct cred *cred,
1679
int security_real_capable(struct task_struct *tsk, struct user_namespace *ns,
1681
int security_real_capable_noaudit(struct task_struct *tsk,
1682
struct user_namespace *ns, int cap);
1683
int security_quotactl(int cmds, int type, int id, struct super_block *sb);
1684
int security_quota_on(struct dentry *dentry);
1685
int security_syslog(int type);
1686
int security_settime(const struct timespec *ts, const struct timezone *tz);
1687
int security_vm_enough_memory(long pages);
1688
int security_vm_enough_memory_mm(struct mm_struct *mm, long pages);
1689
int security_vm_enough_memory_kern(long pages);
1690
int security_bprm_set_creds(struct linux_binprm *bprm);
1691
int security_bprm_check(struct linux_binprm *bprm);
1692
void security_bprm_committing_creds(struct linux_binprm *bprm);
1693
void security_bprm_committed_creds(struct linux_binprm *bprm);
1694
int security_bprm_secureexec(struct linux_binprm *bprm);
1695
int security_sb_alloc(struct super_block *sb);
1696
void security_sb_free(struct super_block *sb);
1697
int security_sb_copy_data(char *orig, char *copy);
1698
int security_sb_remount(struct super_block *sb, void *data);
1699
int security_sb_kern_mount(struct super_block *sb, int flags, void *data);
1700
int security_sb_show_options(struct seq_file *m, struct super_block *sb);
1701
int security_sb_statfs(struct dentry *dentry);
1702
int security_sb_mount(char *dev_name, struct path *path,
1703
char *type, unsigned long flags, void *data);
1704
int security_sb_umount(struct vfsmount *mnt, int flags);
1705
int security_sb_pivotroot(struct path *old_path, struct path *new_path);
1706
int security_sb_set_mnt_opts(struct super_block *sb, struct security_mnt_opts *opts);
1707
void security_sb_clone_mnt_opts(const struct super_block *oldsb,
1708
struct super_block *newsb);
1709
int security_sb_parse_opts_str(char *options, struct security_mnt_opts *opts);
1711
int security_inode_alloc(struct inode *inode);
1712
void security_inode_free(struct inode *inode);
1713
int security_inode_init_security(struct inode *inode, struct inode *dir,
1714
const struct qstr *qstr,
1715
initxattrs initxattrs, void *fs_data);
1716
int security_old_inode_init_security(struct inode *inode, struct inode *dir,
1717
const struct qstr *qstr, char **name,
1718
void **value, size_t *len);
1719
int security_inode_create(struct inode *dir, struct dentry *dentry, int mode);
1720
int security_inode_link(struct dentry *old_dentry, struct inode *dir,
1721
struct dentry *new_dentry);
1722
int security_inode_unlink(struct inode *dir, struct dentry *dentry);
1723
int security_inode_symlink(struct inode *dir, struct dentry *dentry,
1724
const char *old_name);
1725
int security_inode_mkdir(struct inode *dir, struct dentry *dentry, int mode);
1726
int security_inode_rmdir(struct inode *dir, struct dentry *dentry);
1727
int security_inode_mknod(struct inode *dir, struct dentry *dentry, int mode, dev_t dev);
1728
int security_inode_rename(struct inode *old_dir, struct dentry *old_dentry,
1729
struct inode *new_dir, struct dentry *new_dentry);
1730
int security_inode_readlink(struct dentry *dentry);
1731
int security_inode_follow_link(struct dentry *dentry, struct nameidata *nd);
1732
int security_inode_permission(struct inode *inode, int mask);
1733
int security_inode_setattr(struct dentry *dentry, struct iattr *attr);
1734
int security_inode_getattr(struct vfsmount *mnt, struct dentry *dentry);
1735
int security_inode_setxattr(struct dentry *dentry, const char *name,
1736
const void *value, size_t size, int flags);
1737
void security_inode_post_setxattr(struct dentry *dentry, const char *name,
1738
const void *value, size_t size, int flags);
1739
int security_inode_getxattr(struct dentry *dentry, const char *name);
1740
int security_inode_listxattr(struct dentry *dentry);
1741
int security_inode_removexattr(struct dentry *dentry, const char *name);
1742
int security_inode_need_killpriv(struct dentry *dentry);
1743
int security_inode_killpriv(struct dentry *dentry);
1744
int security_inode_getsecurity(const struct inode *inode, const char *name, void **buffer, bool alloc);
1745
int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags);
1746
int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size);
1747
void security_inode_getsecid(const struct inode *inode, u32 *secid);
1748
int security_file_permission(struct file *file, int mask);
1749
int security_file_alloc(struct file *file);
1750
void security_file_free(struct file *file);
1751
int security_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg);
1752
int security_file_mmap(struct file *file, unsigned long reqprot,
1753
unsigned long prot, unsigned long flags,
1754
unsigned long addr, unsigned long addr_only);
1755
int security_file_mprotect(struct vm_area_struct *vma, unsigned long reqprot,
1756
unsigned long prot);
1757
int security_file_lock(struct file *file, unsigned int cmd);
1758
int security_file_fcntl(struct file *file, unsigned int cmd, unsigned long arg);
1759
int security_file_set_fowner(struct file *file);
1760
int security_file_send_sigiotask(struct task_struct *tsk,
1761
struct fown_struct *fown, int sig);
1762
int security_file_receive(struct file *file);
1763
int security_dentry_open(struct file *file, const struct cred *cred);
1764
int security_task_create(unsigned long clone_flags);
1765
int security_cred_alloc_blank(struct cred *cred, gfp_t gfp);
1766
void security_cred_free(struct cred *cred);
1767
int security_prepare_creds(struct cred *new, const struct cred *old, gfp_t gfp);
1768
void security_transfer_creds(struct cred *new, const struct cred *old);
1769
int security_kernel_act_as(struct cred *new, u32 secid);
1770
int security_kernel_create_files_as(struct cred *new, struct inode *inode);
1771
int security_kernel_module_request(char *kmod_name);
1772
int security_task_fix_setuid(struct cred *new, const struct cred *old,
1774
int security_task_setpgid(struct task_struct *p, pid_t pgid);
1775
int security_task_getpgid(struct task_struct *p);
1776
int security_task_getsid(struct task_struct *p);
1777
void security_task_getsecid(struct task_struct *p, u32 *secid);
1778
int security_task_setnice(struct task_struct *p, int nice);
1779
int security_task_setioprio(struct task_struct *p, int ioprio);
1780
int security_task_getioprio(struct task_struct *p);
1781
int security_task_setrlimit(struct task_struct *p, unsigned int resource,
1782
struct rlimit *new_rlim);
1783
int security_task_setscheduler(struct task_struct *p);
1784
int security_task_getscheduler(struct task_struct *p);
1785
int security_task_movememory(struct task_struct *p);
1786
int security_task_kill(struct task_struct *p, struct siginfo *info,
1787
int sig, u32 secid);
1788
int security_task_wait(struct task_struct *p);
1789
int security_task_prctl(int option, unsigned long arg2, unsigned long arg3,
1790
unsigned long arg4, unsigned long arg5);
1791
void security_task_to_inode(struct task_struct *p, struct inode *inode);
1792
int security_ipc_permission(struct kern_ipc_perm *ipcp, short flag);
1793
void security_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid);
1794
int security_msg_msg_alloc(struct msg_msg *msg);
1795
void security_msg_msg_free(struct msg_msg *msg);
1796
int security_msg_queue_alloc(struct msg_queue *msq);
1797
void security_msg_queue_free(struct msg_queue *msq);
1798
int security_msg_queue_associate(struct msg_queue *msq, int msqflg);
1799
int security_msg_queue_msgctl(struct msg_queue *msq, int cmd);
1800
int security_msg_queue_msgsnd(struct msg_queue *msq,
1801
struct msg_msg *msg, int msqflg);
1802
int security_msg_queue_msgrcv(struct msg_queue *msq, struct msg_msg *msg,
1803
struct task_struct *target, long type, int mode);
1804
int security_shm_alloc(struct shmid_kernel *shp);
1805
void security_shm_free(struct shmid_kernel *shp);
1806
int security_shm_associate(struct shmid_kernel *shp, int shmflg);
1807
int security_shm_shmctl(struct shmid_kernel *shp, int cmd);
1808
int security_shm_shmat(struct shmid_kernel *shp, char __user *shmaddr, int shmflg);
1809
int security_sem_alloc(struct sem_array *sma);
1810
void security_sem_free(struct sem_array *sma);
1811
int security_sem_associate(struct sem_array *sma, int semflg);
1812
int security_sem_semctl(struct sem_array *sma, int cmd);
1813
int security_sem_semop(struct sem_array *sma, struct sembuf *sops,
1814
unsigned nsops, int alter);
1815
void security_d_instantiate(struct dentry *dentry, struct inode *inode);
1816
int security_getprocattr(struct task_struct *p, char *name, char **value);
1817
int security_setprocattr(struct task_struct *p, char *name, void *value, size_t size);
1818
int security_netlink_send(struct sock *sk, struct sk_buff *skb);
1819
int security_netlink_recv(struct sk_buff *skb, int cap);
1820
int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen);
1821
int security_secctx_to_secid(const char *secdata, u32 seclen, u32 *secid);
1822
void security_release_secctx(char *secdata, u32 seclen);
1824
int security_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen);
1825
int security_inode_setsecctx(struct dentry *dentry, void *ctx, u32 ctxlen);
1826
int security_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen);
1827
#else /* CONFIG_SECURITY */
1828
struct security_mnt_opts {
1831
static inline void security_init_mnt_opts(struct security_mnt_opts *opts)
1835
static inline void security_free_mnt_opts(struct security_mnt_opts *opts)
1840
* This is the default capabilities functionality. Most of these functions
1841
* are just stubbed out, but a few must call the proper capable code.
1844
static inline int security_init(void)
1849
static inline int security_ptrace_access_check(struct task_struct *child,
1852
return cap_ptrace_access_check(child, mode);
1855
static inline int security_ptrace_traceme(struct task_struct *parent)
1857
return cap_ptrace_traceme(parent);
1860
static inline int security_capget(struct task_struct *target,
1861
kernel_cap_t *effective,
1862
kernel_cap_t *inheritable,
1863
kernel_cap_t *permitted)
1865
return cap_capget(target, effective, inheritable, permitted);
1868
static inline int security_capset(struct cred *new,
1869
const struct cred *old,
1870
const kernel_cap_t *effective,
1871
const kernel_cap_t *inheritable,
1872
const kernel_cap_t *permitted)
1874
return cap_capset(new, old, effective, inheritable, permitted);
1877
static inline int security_capable(struct user_namespace *ns,
1878
const struct cred *cred, int cap)
1880
return cap_capable(current, cred, ns, cap, SECURITY_CAP_AUDIT);
1883
static inline int security_real_capable(struct task_struct *tsk, struct user_namespace *ns, int cap)
1888
ret = cap_capable(tsk, __task_cred(tsk), ns, cap, SECURITY_CAP_AUDIT);
1894
int security_real_capable_noaudit(struct task_struct *tsk, struct user_namespace *ns, int cap)
1899
ret = cap_capable(tsk, __task_cred(tsk), ns, cap,
1900
SECURITY_CAP_NOAUDIT);
1905
static inline int security_quotactl(int cmds, int type, int id,
1906
struct super_block *sb)
1911
static inline int security_quota_on(struct dentry *dentry)
1916
static inline int security_syslog(int type)
1921
static inline int security_settime(const struct timespec *ts,
1922
const struct timezone *tz)
1924
return cap_settime(ts, tz);
1927
static inline int security_vm_enough_memory(long pages)
1929
WARN_ON(current->mm == NULL);
1930
return cap_vm_enough_memory(current->mm, pages);
1933
static inline int security_vm_enough_memory_mm(struct mm_struct *mm, long pages)
1935
WARN_ON(mm == NULL);
1936
return cap_vm_enough_memory(mm, pages);
1939
static inline int security_vm_enough_memory_kern(long pages)
1941
/* If current->mm is a kernel thread then we will pass NULL,
1942
for this specific case that is fine */
1943
return cap_vm_enough_memory(current->mm, pages);
1946
static inline int security_bprm_set_creds(struct linux_binprm *bprm)
1948
return cap_bprm_set_creds(bprm);
1951
static inline int security_bprm_check(struct linux_binprm *bprm)
1956
static inline void security_bprm_committing_creds(struct linux_binprm *bprm)
1960
static inline void security_bprm_committed_creds(struct linux_binprm *bprm)
1964
static inline int security_bprm_secureexec(struct linux_binprm *bprm)
1966
return cap_bprm_secureexec(bprm);
1969
static inline int security_sb_alloc(struct super_block *sb)
1974
static inline void security_sb_free(struct super_block *sb)
1977
static inline int security_sb_copy_data(char *orig, char *copy)
1982
static inline int security_sb_remount(struct super_block *sb, void *data)
1987
static inline int security_sb_kern_mount(struct super_block *sb, int flags, void *data)
1992
static inline int security_sb_show_options(struct seq_file *m,
1993
struct super_block *sb)
1998
static inline int security_sb_statfs(struct dentry *dentry)
2003
static inline int security_sb_mount(char *dev_name, struct path *path,
2004
char *type, unsigned long flags,
2010
static inline int security_sb_umount(struct vfsmount *mnt, int flags)
2015
static inline int security_sb_pivotroot(struct path *old_path,
2016
struct path *new_path)
2021
static inline int security_sb_set_mnt_opts(struct super_block *sb,
2022
struct security_mnt_opts *opts)
2027
static inline void security_sb_clone_mnt_opts(const struct super_block *oldsb,
2028
struct super_block *newsb)
2031
static inline int security_sb_parse_opts_str(char *options, struct security_mnt_opts *opts)
2036
static inline int security_inode_alloc(struct inode *inode)
2041
static inline void security_inode_free(struct inode *inode)
2044
static inline int security_inode_init_security(struct inode *inode,
2046
const struct qstr *qstr,
2047
initxattrs initxattrs,
2053
static inline int security_old_inode_init_security(struct inode *inode,
2055
const struct qstr *qstr,
2056
char **name, void **value,
2062
static inline int security_inode_create(struct inode *dir,
2063
struct dentry *dentry,
2069
static inline int security_inode_link(struct dentry *old_dentry,
2071
struct dentry *new_dentry)
2076
static inline int security_inode_unlink(struct inode *dir,
2077
struct dentry *dentry)
2082
static inline int security_inode_symlink(struct inode *dir,
2083
struct dentry *dentry,
2084
const char *old_name)
2089
static inline int security_inode_mkdir(struct inode *dir,
2090
struct dentry *dentry,
2096
static inline int security_inode_rmdir(struct inode *dir,
2097
struct dentry *dentry)
2102
static inline int security_inode_mknod(struct inode *dir,
2103
struct dentry *dentry,
2104
int mode, dev_t dev)
2109
static inline int security_inode_rename(struct inode *old_dir,
2110
struct dentry *old_dentry,
2111
struct inode *new_dir,
2112
struct dentry *new_dentry)
2117
static inline int security_inode_readlink(struct dentry *dentry)
2122
static inline int security_inode_follow_link(struct dentry *dentry,
2123
struct nameidata *nd)
2128
static inline int security_inode_permission(struct inode *inode, int mask)
2133
static inline int security_inode_setattr(struct dentry *dentry,
2139
static inline int security_inode_getattr(struct vfsmount *mnt,
2140
struct dentry *dentry)
2145
static inline int security_inode_setxattr(struct dentry *dentry,
2146
const char *name, const void *value, size_t size, int flags)
2148
return cap_inode_setxattr(dentry, name, value, size, flags);
2151
static inline void security_inode_post_setxattr(struct dentry *dentry,
2152
const char *name, const void *value, size_t size, int flags)
2155
static inline int security_inode_getxattr(struct dentry *dentry,
2161
static inline int security_inode_listxattr(struct dentry *dentry)
2166
static inline int security_inode_removexattr(struct dentry *dentry,
2169
return cap_inode_removexattr(dentry, name);
2172
static inline int security_inode_need_killpriv(struct dentry *dentry)
2174
return cap_inode_need_killpriv(dentry);
2177
static inline int security_inode_killpriv(struct dentry *dentry)
2179
return cap_inode_killpriv(dentry);
2182
static inline int security_inode_getsecurity(const struct inode *inode, const char *name, void **buffer, bool alloc)
2187
static inline int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags)
2192
static inline int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size)
2197
static inline void security_inode_getsecid(const struct inode *inode, u32 *secid)
2202
static inline int security_file_permission(struct file *file, int mask)
2207
static inline int security_file_alloc(struct file *file)
2212
static inline void security_file_free(struct file *file)
2215
static inline int security_file_ioctl(struct file *file, unsigned int cmd,
2221
static inline int security_file_mmap(struct file *file, unsigned long reqprot,
2223
unsigned long flags,
2225
unsigned long addr_only)
2227
return cap_file_mmap(file, reqprot, prot, flags, addr, addr_only);
2230
static inline int security_file_mprotect(struct vm_area_struct *vma,
2231
unsigned long reqprot,
2237
static inline int security_file_lock(struct file *file, unsigned int cmd)
2242
static inline int security_file_fcntl(struct file *file, unsigned int cmd,
2248
static inline int security_file_set_fowner(struct file *file)
2253
static inline int security_file_send_sigiotask(struct task_struct *tsk,
2254
struct fown_struct *fown,
2260
static inline int security_file_receive(struct file *file)
2265
static inline int security_dentry_open(struct file *file,
2266
const struct cred *cred)
2271
static inline int security_task_create(unsigned long clone_flags)
2276
static inline int security_cred_alloc_blank(struct cred *cred, gfp_t gfp)
2281
static inline void security_cred_free(struct cred *cred)
2284
static inline int security_prepare_creds(struct cred *new,
2285
const struct cred *old,
2291
static inline void security_transfer_creds(struct cred *new,
2292
const struct cred *old)
2296
static inline int security_kernel_act_as(struct cred *cred, u32 secid)
2301
static inline int security_kernel_create_files_as(struct cred *cred,
2302
struct inode *inode)
2307
static inline int security_kernel_module_request(char *kmod_name)
2312
static inline int security_task_fix_setuid(struct cred *new,
2313
const struct cred *old,
2316
return cap_task_fix_setuid(new, old, flags);
2319
static inline int security_task_setpgid(struct task_struct *p, pid_t pgid)
2324
static inline int security_task_getpgid(struct task_struct *p)
2329
static inline int security_task_getsid(struct task_struct *p)
2334
static inline void security_task_getsecid(struct task_struct *p, u32 *secid)
2339
static inline int security_task_setnice(struct task_struct *p, int nice)
2341
return cap_task_setnice(p, nice);
2344
static inline int security_task_setioprio(struct task_struct *p, int ioprio)
2346
return cap_task_setioprio(p, ioprio);
2349
static inline int security_task_getioprio(struct task_struct *p)
2354
static inline int security_task_setrlimit(struct task_struct *p,
2355
unsigned int resource,
2356
struct rlimit *new_rlim)
2361
static inline int security_task_setscheduler(struct task_struct *p)
2363
return cap_task_setscheduler(p);
2366
static inline int security_task_getscheduler(struct task_struct *p)
2371
static inline int security_task_movememory(struct task_struct *p)
2376
static inline int security_task_kill(struct task_struct *p,
2377
struct siginfo *info, int sig,
2383
static inline int security_task_wait(struct task_struct *p)
2388
static inline int security_task_prctl(int option, unsigned long arg2,
2393
return cap_task_prctl(option, arg2, arg3, arg3, arg5);
2396
static inline void security_task_to_inode(struct task_struct *p, struct inode *inode)
2399
static inline int security_ipc_permission(struct kern_ipc_perm *ipcp,
2405
static inline void security_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid)
2410
static inline int security_msg_msg_alloc(struct msg_msg *msg)
2415
static inline void security_msg_msg_free(struct msg_msg *msg)
2418
static inline int security_msg_queue_alloc(struct msg_queue *msq)
2423
static inline void security_msg_queue_free(struct msg_queue *msq)
2426
static inline int security_msg_queue_associate(struct msg_queue *msq,
2432
static inline int security_msg_queue_msgctl(struct msg_queue *msq, int cmd)
2437
static inline int security_msg_queue_msgsnd(struct msg_queue *msq,
2438
struct msg_msg *msg, int msqflg)
2443
static inline int security_msg_queue_msgrcv(struct msg_queue *msq,
2444
struct msg_msg *msg,
2445
struct task_struct *target,
2446
long type, int mode)
2451
static inline int security_shm_alloc(struct shmid_kernel *shp)
2456
static inline void security_shm_free(struct shmid_kernel *shp)
2459
static inline int security_shm_associate(struct shmid_kernel *shp,
2465
static inline int security_shm_shmctl(struct shmid_kernel *shp, int cmd)
2470
static inline int security_shm_shmat(struct shmid_kernel *shp,
2471
char __user *shmaddr, int shmflg)
2476
static inline int security_sem_alloc(struct sem_array *sma)
2481
static inline void security_sem_free(struct sem_array *sma)
2484
static inline int security_sem_associate(struct sem_array *sma, int semflg)
2489
static inline int security_sem_semctl(struct sem_array *sma, int cmd)
2494
static inline int security_sem_semop(struct sem_array *sma,
2495
struct sembuf *sops, unsigned nsops,
2501
static inline void security_d_instantiate(struct dentry *dentry, struct inode *inode)
2504
static inline int security_getprocattr(struct task_struct *p, char *name, char **value)
2509
static inline int security_setprocattr(struct task_struct *p, char *name, void *value, size_t size)
2514
static inline int security_netlink_send(struct sock *sk, struct sk_buff *skb)
2516
return cap_netlink_send(sk, skb);
2519
static inline int security_netlink_recv(struct sk_buff *skb, int cap)
2521
return cap_netlink_recv(skb, cap);
2524
static inline int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen)
2529
static inline int security_secctx_to_secid(const char *secdata,
2536
static inline void security_release_secctx(char *secdata, u32 seclen)
2540
static inline int security_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen)
2544
static inline int security_inode_setsecctx(struct dentry *dentry, void *ctx, u32 ctxlen)
2548
static inline int security_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen)
2552
#endif /* CONFIG_SECURITY */
2554
#ifdef CONFIG_SECURITY_NETWORK
2556
int security_unix_stream_connect(struct sock *sock, struct sock *other, struct sock *newsk);
2557
int security_unix_may_send(struct socket *sock, struct socket *other);
2558
int security_socket_create(int family, int type, int protocol, int kern);
2559
int security_socket_post_create(struct socket *sock, int family,
2560
int type, int protocol, int kern);
2561
int security_socket_bind(struct socket *sock, struct sockaddr *address, int addrlen);
2562
int security_socket_connect(struct socket *sock, struct sockaddr *address, int addrlen);
2563
int security_socket_listen(struct socket *sock, int backlog);
2564
int security_socket_accept(struct socket *sock, struct socket *newsock);
2565
int security_socket_sendmsg(struct socket *sock, struct msghdr *msg, int size);
2566
int security_socket_recvmsg(struct socket *sock, struct msghdr *msg,
2567
int size, int flags);
2568
int security_socket_getsockname(struct socket *sock);
2569
int security_socket_getpeername(struct socket *sock);
2570
int security_socket_getsockopt(struct socket *sock, int level, int optname);
2571
int security_socket_setsockopt(struct socket *sock, int level, int optname);
2572
int security_socket_shutdown(struct socket *sock, int how);
2573
int security_sock_rcv_skb(struct sock *sk, struct sk_buff *skb);
2574
int security_socket_getpeersec_stream(struct socket *sock, char __user *optval,
2575
int __user *optlen, unsigned len);
2576
int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid);
2577
int security_sk_alloc(struct sock *sk, int family, gfp_t priority);
2578
void security_sk_free(struct sock *sk);
2579
void security_sk_clone(const struct sock *sk, struct sock *newsk);
2580
void security_sk_classify_flow(struct sock *sk, struct flowi *fl);
2581
void security_req_classify_flow(const struct request_sock *req, struct flowi *fl);
2582
void security_sock_graft(struct sock*sk, struct socket *parent);
2583
int security_inet_conn_request(struct sock *sk,
2584
struct sk_buff *skb, struct request_sock *req);
2585
void security_inet_csk_clone(struct sock *newsk,
2586
const struct request_sock *req);
2587
void security_inet_conn_established(struct sock *sk,
2588
struct sk_buff *skb);
2589
int security_secmark_relabel_packet(u32 secid);
2590
void security_secmark_refcount_inc(void);
2591
void security_secmark_refcount_dec(void);
2592
int security_tun_dev_create(void);
2593
void security_tun_dev_post_create(struct sock *sk);
2594
int security_tun_dev_attach(struct sock *sk);
2596
#else /* CONFIG_SECURITY_NETWORK */
2597
static inline int security_unix_stream_connect(struct sock *sock,
2604
static inline int security_unix_may_send(struct socket *sock,
2605
struct socket *other)
2610
static inline int security_socket_create(int family, int type,
2611
int protocol, int kern)
2616
static inline int security_socket_post_create(struct socket *sock,
2619
int protocol, int kern)
2624
static inline int security_socket_bind(struct socket *sock,
2625
struct sockaddr *address,
2631
static inline int security_socket_connect(struct socket *sock,
2632
struct sockaddr *address,
2638
static inline int security_socket_listen(struct socket *sock, int backlog)
2643
static inline int security_socket_accept(struct socket *sock,
2644
struct socket *newsock)
2649
static inline int security_socket_sendmsg(struct socket *sock,
2650
struct msghdr *msg, int size)
2655
static inline int security_socket_recvmsg(struct socket *sock,
2656
struct msghdr *msg, int size,
2662
static inline int security_socket_getsockname(struct socket *sock)
2667
static inline int security_socket_getpeername(struct socket *sock)
2672
static inline int security_socket_getsockopt(struct socket *sock,
2673
int level, int optname)
2678
static inline int security_socket_setsockopt(struct socket *sock,
2679
int level, int optname)
2684
static inline int security_socket_shutdown(struct socket *sock, int how)
2688
static inline int security_sock_rcv_skb(struct sock *sk,
2689
struct sk_buff *skb)
2694
static inline int security_socket_getpeersec_stream(struct socket *sock, char __user *optval,
2695
int __user *optlen, unsigned len)
2697
return -ENOPROTOOPT;
2700
static inline int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid)
2702
return -ENOPROTOOPT;
2705
static inline int security_sk_alloc(struct sock *sk, int family, gfp_t priority)
2710
static inline void security_sk_free(struct sock *sk)
2714
static inline void security_sk_clone(const struct sock *sk, struct sock *newsk)
2718
static inline void security_sk_classify_flow(struct sock *sk, struct flowi *fl)
2722
static inline void security_req_classify_flow(const struct request_sock *req, struct flowi *fl)
2726
static inline void security_sock_graft(struct sock *sk, struct socket *parent)
2730
static inline int security_inet_conn_request(struct sock *sk,
2731
struct sk_buff *skb, struct request_sock *req)
2736
static inline void security_inet_csk_clone(struct sock *newsk,
2737
const struct request_sock *req)
2741
static inline void security_inet_conn_established(struct sock *sk,
2742
struct sk_buff *skb)
2746
static inline int security_secmark_relabel_packet(u32 secid)
2751
static inline void security_secmark_refcount_inc(void)
2755
static inline void security_secmark_refcount_dec(void)
2759
static inline int security_tun_dev_create(void)
2764
static inline void security_tun_dev_post_create(struct sock *sk)
2768
static inline int security_tun_dev_attach(struct sock *sk)
2772
#endif /* CONFIG_SECURITY_NETWORK */
2774
#ifdef CONFIG_SECURITY_NETWORK_XFRM
2776
int security_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp, struct xfrm_user_sec_ctx *sec_ctx);
2777
int security_xfrm_policy_clone(struct xfrm_sec_ctx *old_ctx, struct xfrm_sec_ctx **new_ctxp);
2778
void security_xfrm_policy_free(struct xfrm_sec_ctx *ctx);
2779
int security_xfrm_policy_delete(struct xfrm_sec_ctx *ctx);
2780
int security_xfrm_state_alloc(struct xfrm_state *x, struct xfrm_user_sec_ctx *sec_ctx);
2781
int security_xfrm_state_alloc_acquire(struct xfrm_state *x,
2782
struct xfrm_sec_ctx *polsec, u32 secid);
2783
int security_xfrm_state_delete(struct xfrm_state *x);
2784
void security_xfrm_state_free(struct xfrm_state *x);
2785
int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir);
2786
int security_xfrm_state_pol_flow_match(struct xfrm_state *x,
2787
struct xfrm_policy *xp,
2788
const struct flowi *fl);
2789
int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid);
2790
void security_skb_classify_flow(struct sk_buff *skb, struct flowi *fl);
2792
#else /* CONFIG_SECURITY_NETWORK_XFRM */
2794
static inline int security_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp, struct xfrm_user_sec_ctx *sec_ctx)
2799
static inline int security_xfrm_policy_clone(struct xfrm_sec_ctx *old, struct xfrm_sec_ctx **new_ctxp)
2804
static inline void security_xfrm_policy_free(struct xfrm_sec_ctx *ctx)
2808
static inline int security_xfrm_policy_delete(struct xfrm_sec_ctx *ctx)
2813
static inline int security_xfrm_state_alloc(struct xfrm_state *x,
2814
struct xfrm_user_sec_ctx *sec_ctx)
2819
static inline int security_xfrm_state_alloc_acquire(struct xfrm_state *x,
2820
struct xfrm_sec_ctx *polsec, u32 secid)
2825
static inline void security_xfrm_state_free(struct xfrm_state *x)
2829
static inline int security_xfrm_state_delete(struct xfrm_state *x)
2834
static inline int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir)
2839
static inline int security_xfrm_state_pol_flow_match(struct xfrm_state *x,
2840
struct xfrm_policy *xp, const struct flowi *fl)
2845
static inline int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid)
2850
static inline void security_skb_classify_flow(struct sk_buff *skb, struct flowi *fl)
2854
#endif /* CONFIG_SECURITY_NETWORK_XFRM */
2856
#ifdef CONFIG_SECURITY_PATH
2857
int security_path_unlink(struct path *dir, struct dentry *dentry);
2858
int security_path_mkdir(struct path *dir, struct dentry *dentry, int mode);
2859
int security_path_rmdir(struct path *dir, struct dentry *dentry);
2860
int security_path_mknod(struct path *dir, struct dentry *dentry, int mode,
2862
int security_path_truncate(struct path *path);
2863
int security_path_symlink(struct path *dir, struct dentry *dentry,
2864
const char *old_name);
2865
int security_path_link(struct dentry *old_dentry, struct path *new_dir,
2866
struct dentry *new_dentry);
2867
int security_path_rename(struct path *old_dir, struct dentry *old_dentry,
2868
struct path *new_dir, struct dentry *new_dentry);
2869
int security_path_chmod(struct dentry *dentry, struct vfsmount *mnt,
2871
int security_path_chown(struct path *path, uid_t uid, gid_t gid);
2872
int security_path_chroot(struct path *path);
2873
#else /* CONFIG_SECURITY_PATH */
2874
static inline int security_path_unlink(struct path *dir, struct dentry *dentry)
2879
static inline int security_path_mkdir(struct path *dir, struct dentry *dentry,
2885
static inline int security_path_rmdir(struct path *dir, struct dentry *dentry)
2890
static inline int security_path_mknod(struct path *dir, struct dentry *dentry,
2891
int mode, unsigned int dev)
2896
static inline int security_path_truncate(struct path *path)
2901
static inline int security_path_symlink(struct path *dir, struct dentry *dentry,
2902
const char *old_name)
2907
static inline int security_path_link(struct dentry *old_dentry,
2908
struct path *new_dir,
2909
struct dentry *new_dentry)
2914
static inline int security_path_rename(struct path *old_dir,
2915
struct dentry *old_dentry,
2916
struct path *new_dir,
2917
struct dentry *new_dentry)
2922
static inline int security_path_chmod(struct dentry *dentry,
2923
struct vfsmount *mnt,
2929
static inline int security_path_chown(struct path *path, uid_t uid, gid_t gid)
2934
static inline int security_path_chroot(struct path *path)
2938
#endif /* CONFIG_SECURITY_PATH */
2941
#ifdef CONFIG_SECURITY
2943
int security_key_alloc(struct key *key, const struct cred *cred, unsigned long flags);
2944
void security_key_free(struct key *key);
2945
int security_key_permission(key_ref_t key_ref,
2946
const struct cred *cred, key_perm_t perm);
2947
int security_key_getsecurity(struct key *key, char **_buffer);
2951
static inline int security_key_alloc(struct key *key,
2952
const struct cred *cred,
2953
unsigned long flags)
2958
static inline void security_key_free(struct key *key)
2962
static inline int security_key_permission(key_ref_t key_ref,
2963
const struct cred *cred,
2969
static inline int security_key_getsecurity(struct key *key, char **_buffer)
2976
#endif /* CONFIG_KEYS */
2979
#ifdef CONFIG_SECURITY
2980
int security_audit_rule_init(u32 field, u32 op, char *rulestr, void **lsmrule);
2981
int security_audit_rule_known(struct audit_krule *krule);
2982
int security_audit_rule_match(u32 secid, u32 field, u32 op, void *lsmrule,
2983
struct audit_context *actx);
2984
void security_audit_rule_free(void *lsmrule);
2988
static inline int security_audit_rule_init(u32 field, u32 op, char *rulestr,
2994
static inline int security_audit_rule_known(struct audit_krule *krule)
2999
static inline int security_audit_rule_match(u32 secid, u32 field, u32 op,
3000
void *lsmrule, struct audit_context *actx)
3005
static inline void security_audit_rule_free(void *lsmrule)
3008
#endif /* CONFIG_SECURITY */
3009
#endif /* CONFIG_AUDIT */
3011
#ifdef CONFIG_SECURITYFS
3013
extern struct dentry *securityfs_create_file(const char *name, mode_t mode,
3014
struct dentry *parent, void *data,
3015
const struct file_operations *fops);
3016
extern struct dentry *securityfs_create_dir(const char *name, struct dentry *parent);
3017
extern void securityfs_remove(struct dentry *dentry);
3019
#else /* CONFIG_SECURITYFS */
3021
static inline struct dentry *securityfs_create_dir(const char *name,
3022
struct dentry *parent)
3024
return ERR_PTR(-ENODEV);
3027
static inline struct dentry *securityfs_create_file(const char *name,
3029
struct dentry *parent,
3031
const struct file_operations *fops)
3033
return ERR_PTR(-ENODEV);
3036
static inline void securityfs_remove(struct dentry *dentry)
3041
#ifdef CONFIG_SECURITY
3043
static inline char *alloc_secdata(void)
3045
return (char *)get_zeroed_page(GFP_KERNEL);
3048
static inline void free_secdata(void *secdata)
3050
free_page((unsigned long)secdata);
3055
static inline char *alloc_secdata(void)
3060
static inline void free_secdata(void *secdata)
3062
#endif /* CONFIG_SECURITY */
3064
#endif /* ! __LINUX_SECURITY_H */