Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
security: Refactor declaration of LSM hooks
The information about the different types of LSM hooks is scattered
in two locations i.e. union security_list_options and
struct security_hook_heads. Rather than duplicating this information
even further for BPF_PROG_TYPE_LSM, define all the hooks with the
LSM_HOOK macro in lsm_hook_defs.h which is then used to generate all
the data structures required by the LSM framework.
The LSM hooks are defined as:
LSM_HOOK(<return_type>, <default_value>, <hook_name>, args...)
with <default_value> acccessible in security.c as:
LSM_RET_DEFAULT(<hook_name>)
Signed-off-by: KP Singh <kpsingh@google.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Reviewed-by: Brendan Jackman <jackmanb@google.com>
Reviewed-by: Florent Revest <revest@google.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Casey Schaufler <casey@schaufler-ca.com>
Acked-by: James Morris <jamorris@linux.microsoft.com>
Link: https://lore.kernel.org/bpf/20200329004356.27286-3-kpsingh@chromium.org
authored by
KP Singh
and committed by
Daniel Borkmann
98e828a0
fc611f47
+423
-627
+381
include/linux/lsm_hook_defs.h
+381
include/linux/lsm_hook_defs.h
···
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/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Linux Security Module Hook declarations.
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*
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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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* Copyright (C) 2015 Intel Corporation.
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* Copyright (C) 2015 Casey Schaufler <casey@schaufler-ca.com>
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* Copyright (C) 2016 Mellanox Techonologies
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* Copyright (C) 2020 Google LLC.
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*/
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/*
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* The macro LSM_HOOK is used to define the data structures required by the
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* the LSM framework using the pattern:
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*
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* LSM_HOOK(<return_type>, <default_value>, <hook_name>, args...)
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*
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* struct security_hook_heads {
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* #define LSM_HOOK(RET, DEFAULT, NAME, ...) struct hlist_head NAME;
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* #include <linux/lsm_hook_defs.h>
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* #undef LSM_HOOK
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* };
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*/
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LSM_HOOK(int, 0, binder_set_context_mgr, struct task_struct *mgr)
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LSM_HOOK(int, 0, binder_transaction, struct task_struct *from,
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struct task_struct *to)
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LSM_HOOK(int, 0, binder_transfer_binder, struct task_struct *from,
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struct task_struct *to)
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LSM_HOOK(int, 0, binder_transfer_file, struct task_struct *from,
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struct task_struct *to, struct file *file)
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LSM_HOOK(int, 0, ptrace_access_check, struct task_struct *child,
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unsigned int mode)
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LSM_HOOK(int, 0, ptrace_traceme, struct task_struct *parent)
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LSM_HOOK(int, 0, capget, struct task_struct *target, kernel_cap_t *effective,
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kernel_cap_t *inheritable, kernel_cap_t *permitted)
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LSM_HOOK(int, 0, capset, struct cred *new, const struct cred *old,
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const kernel_cap_t *effective, const kernel_cap_t *inheritable,
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const kernel_cap_t *permitted)
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LSM_HOOK(int, 0, capable, const struct cred *cred, struct user_namespace *ns,
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int cap, unsigned int opts)
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LSM_HOOK(int, 0, quotactl, int cmds, int type, int id, struct super_block *sb)
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LSM_HOOK(int, 0, quota_on, struct dentry *dentry)
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LSM_HOOK(int, 0, syslog, int type)
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LSM_HOOK(int, 0, settime, const struct timespec64 *ts,
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const struct timezone *tz)
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LSM_HOOK(int, 0, vm_enough_memory, struct mm_struct *mm, long pages)
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LSM_HOOK(int, 0, bprm_set_creds, struct linux_binprm *bprm)
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LSM_HOOK(int, 0, bprm_check_security, struct linux_binprm *bprm)
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LSM_HOOK(void, LSM_RET_VOID, bprm_committing_creds, struct linux_binprm *bprm)
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LSM_HOOK(void, LSM_RET_VOID, bprm_committed_creds, struct linux_binprm *bprm)
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LSM_HOOK(int, 0, fs_context_dup, struct fs_context *fc,
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struct fs_context *src_sc)
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LSM_HOOK(int, 0, fs_context_parse_param, struct fs_context *fc,
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struct fs_parameter *param)
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LSM_HOOK(int, 0, sb_alloc_security, struct super_block *sb)
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LSM_HOOK(void, LSM_RET_VOID, sb_free_security, struct super_block *sb)
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LSM_HOOK(void, LSM_RET_VOID, sb_free_mnt_opts, void *mnt_opts)
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LSM_HOOK(int, 0, sb_eat_lsm_opts, char *orig, void **mnt_opts)
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LSM_HOOK(int, 0, sb_remount, struct super_block *sb, void *mnt_opts)
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LSM_HOOK(int, 0, sb_kern_mount, struct super_block *sb)
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LSM_HOOK(int, 0, sb_show_options, struct seq_file *m, struct super_block *sb)
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LSM_HOOK(int, 0, sb_statfs, struct dentry *dentry)
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LSM_HOOK(int, 0, sb_mount, const char *dev_name, const struct path *path,
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const char *type, unsigned long flags, void *data)
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LSM_HOOK(int, 0, sb_umount, struct vfsmount *mnt, int flags)
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LSM_HOOK(int, 0, sb_pivotroot, const struct path *old_path,
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const struct path *new_path)
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LSM_HOOK(int, 0, sb_set_mnt_opts, struct super_block *sb, void *mnt_opts,
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unsigned long kern_flags, unsigned long *set_kern_flags)
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LSM_HOOK(int, 0, sb_clone_mnt_opts, const struct super_block *oldsb,
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struct super_block *newsb, unsigned long kern_flags,
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unsigned long *set_kern_flags)
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LSM_HOOK(int, 0, sb_add_mnt_opt, const char *option, const char *val,
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int len, void **mnt_opts)
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LSM_HOOK(int, 0, move_mount, const struct path *from_path,
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const struct path *to_path)
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LSM_HOOK(int, 0, dentry_init_security, struct dentry *dentry,
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int mode, const struct qstr *name, void **ctx, u32 *ctxlen)
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LSM_HOOK(int, 0, dentry_create_files_as, struct dentry *dentry, int mode,
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struct qstr *name, const struct cred *old, struct cred *new)
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#ifdef CONFIG_SECURITY_PATH
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LSM_HOOK(int, 0, path_unlink, const struct path *dir, struct dentry *dentry)
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LSM_HOOK(int, 0, path_mkdir, const struct path *dir, struct dentry *dentry,
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umode_t mode)
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LSM_HOOK(int, 0, path_rmdir, const struct path *dir, struct dentry *dentry)
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LSM_HOOK(int, 0, path_mknod, const struct path *dir, struct dentry *dentry,
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umode_t mode, unsigned int dev)
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LSM_HOOK(int, 0, path_truncate, const struct path *path)
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LSM_HOOK(int, 0, path_symlink, const struct path *dir, struct dentry *dentry,
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const char *old_name)
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LSM_HOOK(int, 0, path_link, struct dentry *old_dentry,
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const struct path *new_dir, struct dentry *new_dentry)
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LSM_HOOK(int, 0, path_rename, const struct path *old_dir,
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struct dentry *old_dentry, const struct path *new_dir,
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struct dentry *new_dentry)
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LSM_HOOK(int, 0, path_chmod, const struct path *path, umode_t mode)
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LSM_HOOK(int, 0, path_chown, const struct path *path, kuid_t uid, kgid_t gid)
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LSM_HOOK(int, 0, path_chroot, const struct path *path)
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#endif /* CONFIG_SECURITY_PATH */
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/* Needed for inode based security check */
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LSM_HOOK(int, 0, path_notify, const struct path *path, u64 mask,
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unsigned int obj_type)
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LSM_HOOK(int, 0, inode_alloc_security, struct inode *inode)
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LSM_HOOK(void, LSM_RET_VOID, inode_free_security, struct inode *inode)
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LSM_HOOK(int, 0, inode_init_security, struct inode *inode,
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struct inode *dir, const struct qstr *qstr, const char **name,
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void **value, size_t *len)
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LSM_HOOK(int, 0, inode_create, struct inode *dir, struct dentry *dentry,
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umode_t mode)
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LSM_HOOK(int, 0, inode_link, struct dentry *old_dentry, struct inode *dir,
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struct dentry *new_dentry)
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LSM_HOOK(int, 0, inode_unlink, struct inode *dir, struct dentry *dentry)
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LSM_HOOK(int, 0, inode_symlink, struct inode *dir, struct dentry *dentry,
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const char *old_name)
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LSM_HOOK(int, 0, inode_mkdir, struct inode *dir, struct dentry *dentry,
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umode_t mode)
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LSM_HOOK(int, 0, inode_rmdir, struct inode *dir, struct dentry *dentry)
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LSM_HOOK(int, 0, inode_mknod, struct inode *dir, struct dentry *dentry,
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umode_t mode, dev_t dev)
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LSM_HOOK(int, 0, inode_rename, struct inode *old_dir, struct dentry *old_dentry,
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struct inode *new_dir, struct dentry *new_dentry)
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LSM_HOOK(int, 0, inode_readlink, struct dentry *dentry)
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LSM_HOOK(int, 0, inode_follow_link, struct dentry *dentry, struct inode *inode,
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bool rcu)
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LSM_HOOK(int, 0, inode_permission, struct inode *inode, int mask)
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LSM_HOOK(int, 0, inode_setattr, struct dentry *dentry, struct iattr *attr)
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LSM_HOOK(int, 0, inode_getattr, const struct path *path)
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LSM_HOOK(int, 0, inode_setxattr, struct dentry *dentry, const char *name,
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const void *value, size_t size, int flags)
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LSM_HOOK(void, LSM_RET_VOID, inode_post_setxattr, struct dentry *dentry,
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const char *name, const void *value, size_t size, int flags)
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LSM_HOOK(int, 0, inode_getxattr, struct dentry *dentry, const char *name)
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LSM_HOOK(int, 0, inode_listxattr, struct dentry *dentry)
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LSM_HOOK(int, 0, inode_removexattr, struct dentry *dentry, const char *name)
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LSM_HOOK(int, 0, inode_need_killpriv, struct dentry *dentry)
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LSM_HOOK(int, 0, inode_killpriv, struct dentry *dentry)
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LSM_HOOK(int, -EOPNOTSUPP, inode_getsecurity, struct inode *inode,
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const char *name, void **buffer, bool alloc)
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LSM_HOOK(int, -EOPNOTSUPP, inode_setsecurity, struct inode *inode,
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const char *name, const void *value, size_t size, int flags)
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LSM_HOOK(int, 0, inode_listsecurity, struct inode *inode, char *buffer,
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size_t buffer_size)
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LSM_HOOK(void, LSM_RET_VOID, inode_getsecid, struct inode *inode, u32 *secid)
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LSM_HOOK(int, 0, inode_copy_up, struct dentry *src, struct cred **new)
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LSM_HOOK(int, 0, inode_copy_up_xattr, const char *name)
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LSM_HOOK(int, 0, kernfs_init_security, struct kernfs_node *kn_dir,
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struct kernfs_node *kn)
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LSM_HOOK(int, 0, file_permission, struct file *file, int mask)
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LSM_HOOK(int, 0, file_alloc_security, struct file *file)
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LSM_HOOK(void, LSM_RET_VOID, file_free_security, struct file *file)
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LSM_HOOK(int, 0, file_ioctl, struct file *file, unsigned int cmd,
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unsigned long arg)
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LSM_HOOK(int, 0, mmap_addr, unsigned long addr)
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LSM_HOOK(int, 0, mmap_file, struct file *file, unsigned long reqprot,
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unsigned long prot, unsigned long flags)
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LSM_HOOK(int, 0, file_mprotect, struct vm_area_struct *vma,
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unsigned long reqprot, unsigned long prot)
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LSM_HOOK(int, 0, file_lock, struct file *file, unsigned int cmd)
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LSM_HOOK(int, 0, file_fcntl, struct file *file, unsigned int cmd,
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unsigned long arg)
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LSM_HOOK(void, LSM_RET_VOID, file_set_fowner, struct file *file)
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LSM_HOOK(int, 0, file_send_sigiotask, struct task_struct *tsk,
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struct fown_struct *fown, int sig)
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LSM_HOOK(int, 0, file_receive, struct file *file)
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LSM_HOOK(int, 0, file_open, struct file *file)
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LSM_HOOK(int, 0, task_alloc, struct task_struct *task,
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unsigned long clone_flags)
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LSM_HOOK(void, LSM_RET_VOID, task_free, struct task_struct *task)
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LSM_HOOK(int, 0, cred_alloc_blank, struct cred *cred, gfp_t gfp)
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LSM_HOOK(void, LSM_RET_VOID, cred_free, struct cred *cred)
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LSM_HOOK(int, 0, cred_prepare, struct cred *new, const struct cred *old,
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gfp_t gfp)
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LSM_HOOK(void, LSM_RET_VOID, cred_transfer, struct cred *new,
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const struct cred *old)
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LSM_HOOK(void, LSM_RET_VOID, cred_getsecid, const struct cred *c, u32 *secid)
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LSM_HOOK(int, 0, kernel_act_as, struct cred *new, u32 secid)
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LSM_HOOK(int, 0, kernel_create_files_as, struct cred *new, struct inode *inode)
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LSM_HOOK(int, 0, kernel_module_request, char *kmod_name)
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LSM_HOOK(int, 0, kernel_load_data, enum kernel_load_data_id id)
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LSM_HOOK(int, 0, kernel_read_file, struct file *file,
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enum kernel_read_file_id id)
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LSM_HOOK(int, 0, kernel_post_read_file, struct file *file, char *buf,
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loff_t size, enum kernel_read_file_id id)
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LSM_HOOK(int, 0, task_fix_setuid, struct cred *new, const struct cred *old,
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int flags)
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LSM_HOOK(int, 0, task_setpgid, struct task_struct *p, pid_t pgid)
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LSM_HOOK(int, 0, task_getpgid, struct task_struct *p)
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LSM_HOOK(int, 0, task_getsid, struct task_struct *p)
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LSM_HOOK(void, LSM_RET_VOID, task_getsecid, struct task_struct *p, u32 *secid)
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LSM_HOOK(int, 0, task_setnice, struct task_struct *p, int nice)
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LSM_HOOK(int, 0, task_setioprio, struct task_struct *p, int ioprio)
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LSM_HOOK(int, 0, task_getioprio, struct task_struct *p)
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LSM_HOOK(int, 0, task_prlimit, const struct cred *cred,
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const struct cred *tcred, unsigned int flags)
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LSM_HOOK(int, 0, task_setrlimit, struct task_struct *p, unsigned int resource,
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struct rlimit *new_rlim)
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LSM_HOOK(int, 0, task_setscheduler, struct task_struct *p)
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LSM_HOOK(int, 0, task_getscheduler, struct task_struct *p)
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LSM_HOOK(int, 0, task_movememory, struct task_struct *p)
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LSM_HOOK(int, 0, task_kill, struct task_struct *p, struct kernel_siginfo *info,
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int sig, const struct cred *cred)
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LSM_HOOK(int, -ENOSYS, task_prctl, int option, unsigned long arg2,
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unsigned long arg3, unsigned long arg4, unsigned long arg5)
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LSM_HOOK(void, LSM_RET_VOID, task_to_inode, struct task_struct *p,
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struct inode *inode)
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LSM_HOOK(int, 0, ipc_permission, struct kern_ipc_perm *ipcp, short flag)
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LSM_HOOK(void, LSM_RET_VOID, ipc_getsecid, struct kern_ipc_perm *ipcp,
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u32 *secid)
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LSM_HOOK(int, 0, msg_msg_alloc_security, struct msg_msg *msg)
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LSM_HOOK(void, LSM_RET_VOID, msg_msg_free_security, struct msg_msg *msg)
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LSM_HOOK(int, 0, msg_queue_alloc_security, struct kern_ipc_perm *perm)
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LSM_HOOK(void, LSM_RET_VOID, msg_queue_free_security,
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struct kern_ipc_perm *perm)
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LSM_HOOK(int, 0, msg_queue_associate, struct kern_ipc_perm *perm, int msqflg)
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LSM_HOOK(int, 0, msg_queue_msgctl, struct kern_ipc_perm *perm, int cmd)
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LSM_HOOK(int, 0, msg_queue_msgsnd, struct kern_ipc_perm *perm,
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struct msg_msg *msg, int msqflg)
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LSM_HOOK(int, 0, msg_queue_msgrcv, struct kern_ipc_perm *perm,
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struct msg_msg *msg, struct task_struct *target, long type, int mode)
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LSM_HOOK(int, 0, shm_alloc_security, struct kern_ipc_perm *perm)
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LSM_HOOK(void, LSM_RET_VOID, shm_free_security, struct kern_ipc_perm *perm)
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LSM_HOOK(int, 0, shm_associate, struct kern_ipc_perm *perm, int shmflg)
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LSM_HOOK(int, 0, shm_shmctl, struct kern_ipc_perm *perm, int cmd)
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LSM_HOOK(int, 0, shm_shmat, struct kern_ipc_perm *perm, char __user *shmaddr,
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int shmflg)
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LSM_HOOK(int, 0, sem_alloc_security, struct kern_ipc_perm *perm)
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LSM_HOOK(void, LSM_RET_VOID, sem_free_security, struct kern_ipc_perm *perm)
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LSM_HOOK(int, 0, sem_associate, struct kern_ipc_perm *perm, int semflg)
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LSM_HOOK(int, 0, sem_semctl, struct kern_ipc_perm *perm, int cmd)
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LSM_HOOK(int, 0, sem_semop, struct kern_ipc_perm *perm, struct sembuf *sops,
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unsigned nsops, int alter)
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LSM_HOOK(int, 0, netlink_send, struct sock *sk, struct sk_buff *skb)
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LSM_HOOK(void, LSM_RET_VOID, d_instantiate, struct dentry *dentry,
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struct inode *inode)
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LSM_HOOK(int, -EINVAL, getprocattr, struct task_struct *p, char *name,
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char **value)
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LSM_HOOK(int, -EINVAL, setprocattr, const char *name, void *value, size_t size)
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LSM_HOOK(int, 0, ismaclabel, const char *name)
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LSM_HOOK(int, 0, secid_to_secctx, u32 secid, char **secdata,
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u32 *seclen)
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LSM_HOOK(int, 0, secctx_to_secid, const char *secdata, u32 seclen, u32 *secid)
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LSM_HOOK(void, LSM_RET_VOID, release_secctx, char *secdata, u32 seclen)
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LSM_HOOK(void, LSM_RET_VOID, inode_invalidate_secctx, struct inode *inode)
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LSM_HOOK(int, 0, inode_notifysecctx, struct inode *inode, void *ctx, u32 ctxlen)
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LSM_HOOK(int, 0, inode_setsecctx, struct dentry *dentry, void *ctx, u32 ctxlen)
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LSM_HOOK(int, 0, inode_getsecctx, struct inode *inode, void **ctx,
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u32 *ctxlen)
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+
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#ifdef CONFIG_SECURITY_NETWORK
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LSM_HOOK(int, 0, unix_stream_connect, struct sock *sock, struct sock *other,
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struct sock *newsk)
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LSM_HOOK(int, 0, unix_may_send, struct socket *sock, struct socket *other)
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LSM_HOOK(int, 0, socket_create, int family, int type, int protocol, int kern)
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LSM_HOOK(int, 0, socket_post_create, struct socket *sock, int family, int type,
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int protocol, int kern)
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LSM_HOOK(int, 0, socket_socketpair, struct socket *socka, struct socket *sockb)
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LSM_HOOK(int, 0, socket_bind, struct socket *sock, struct sockaddr *address,
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int addrlen)
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LSM_HOOK(int, 0, socket_connect, struct socket *sock, struct sockaddr *address,
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int addrlen)
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+
LSM_HOOK(int, 0, socket_listen, struct socket *sock, int backlog)
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LSM_HOOK(int, 0, socket_accept, struct socket *sock, struct socket *newsock)
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+
LSM_HOOK(int, 0, socket_sendmsg, struct socket *sock, struct msghdr *msg,
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int size)
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+
LSM_HOOK(int, 0, socket_recvmsg, struct socket *sock, struct msghdr *msg,
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int size, int flags)
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LSM_HOOK(int, 0, socket_getsockname, struct socket *sock)
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LSM_HOOK(int, 0, socket_getpeername, struct socket *sock)
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LSM_HOOK(int, 0, socket_getsockopt, struct socket *sock, int level, int optname)
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LSM_HOOK(int, 0, socket_setsockopt, struct socket *sock, int level, int optname)
278
+
LSM_HOOK(int, 0, socket_shutdown, struct socket *sock, int how)
279
+
LSM_HOOK(int, 0, socket_sock_rcv_skb, struct sock *sk, struct sk_buff *skb)
280
+
LSM_HOOK(int, 0, socket_getpeersec_stream, struct socket *sock,
281
+
char __user *optval, int __user *optlen, unsigned len)
282
+
LSM_HOOK(int, 0, socket_getpeersec_dgram, struct socket *sock,
283
+
struct sk_buff *skb, u32 *secid)
284
+
LSM_HOOK(int, 0, sk_alloc_security, struct sock *sk, int family, gfp_t priority)
285
+
LSM_HOOK(void, LSM_RET_VOID, sk_free_security, struct sock *sk)
286
+
LSM_HOOK(void, LSM_RET_VOID, sk_clone_security, const struct sock *sk,
287
+
struct sock *newsk)
288
+
LSM_HOOK(void, LSM_RET_VOID, sk_getsecid, struct sock *sk, u32 *secid)
289
+
LSM_HOOK(void, LSM_RET_VOID, sock_graft, struct sock *sk, struct socket *parent)
290
+
LSM_HOOK(int, 0, inet_conn_request, struct sock *sk, struct sk_buff *skb,
291
+
struct request_sock *req)
292
+
LSM_HOOK(void, LSM_RET_VOID, inet_csk_clone, struct sock *newsk,
293
+
const struct request_sock *req)
294
+
LSM_HOOK(void, LSM_RET_VOID, inet_conn_established, struct sock *sk,
295
+
struct sk_buff *skb)
296
+
LSM_HOOK(int, 0, secmark_relabel_packet, u32 secid)
297
+
LSM_HOOK(void, LSM_RET_VOID, secmark_refcount_inc, void)
298
+
LSM_HOOK(void, LSM_RET_VOID, secmark_refcount_dec, void)
299
+
LSM_HOOK(void, LSM_RET_VOID, req_classify_flow, const struct request_sock *req,
300
+
struct flowi *fl)
301
+
LSM_HOOK(int, 0, tun_dev_alloc_security, void **security)
302
+
LSM_HOOK(void, LSM_RET_VOID, tun_dev_free_security, void *security)
303
+
LSM_HOOK(int, 0, tun_dev_create, void)
304
+
LSM_HOOK(int, 0, tun_dev_attach_queue, void *security)
305
+
LSM_HOOK(int, 0, tun_dev_attach, struct sock *sk, void *security)
306
+
LSM_HOOK(int, 0, tun_dev_open, void *security)
307
+
LSM_HOOK(int, 0, sctp_assoc_request, struct sctp_endpoint *ep,
308
+
struct sk_buff *skb)
309
+
LSM_HOOK(int, 0, sctp_bind_connect, struct sock *sk, int optname,
310
+
struct sockaddr *address, int addrlen)
311
+
LSM_HOOK(void, LSM_RET_VOID, sctp_sk_clone, struct sctp_endpoint *ep,
312
+
struct sock *sk, struct sock *newsk)
313
+
#endif /* CONFIG_SECURITY_NETWORK */
314
+
315
+
#ifdef CONFIG_SECURITY_INFINIBAND
316
+
LSM_HOOK(int, 0, ib_pkey_access, void *sec, u64 subnet_prefix, u16 pkey)
317
+
LSM_HOOK(int, 0, ib_endport_manage_subnet, void *sec, const char *dev_name,
318
+
u8 port_num)
319
+
LSM_HOOK(int, 0, ib_alloc_security, void **sec)
320
+
LSM_HOOK(void, LSM_RET_VOID, ib_free_security, void *sec)
321
+
#endif /* CONFIG_SECURITY_INFINIBAND */
322
+
323
+
#ifdef CONFIG_SECURITY_NETWORK_XFRM
324
+
LSM_HOOK(int, 0, xfrm_policy_alloc_security, struct xfrm_sec_ctx **ctxp,
325
+
struct xfrm_user_sec_ctx *sec_ctx, gfp_t gfp)
326
+
LSM_HOOK(int, 0, xfrm_policy_clone_security, struct xfrm_sec_ctx *old_ctx,
327
+
struct xfrm_sec_ctx **new_ctx)
328
+
LSM_HOOK(void, LSM_RET_VOID, xfrm_policy_free_security,
329
+
struct xfrm_sec_ctx *ctx)
330
+
LSM_HOOK(int, 0, xfrm_policy_delete_security, struct xfrm_sec_ctx *ctx)
331
+
LSM_HOOK(int, 0, xfrm_state_alloc, struct xfrm_state *x,
332
+
struct xfrm_user_sec_ctx *sec_ctx)
333
+
LSM_HOOK(int, 0, xfrm_state_alloc_acquire, struct xfrm_state *x,
334
+
struct xfrm_sec_ctx *polsec, u32 secid)
335
+
LSM_HOOK(void, LSM_RET_VOID, xfrm_state_free_security, struct xfrm_state *x)
336
+
LSM_HOOK(int, 0, xfrm_state_delete_security, struct xfrm_state *x)
337
+
LSM_HOOK(int, 0, xfrm_policy_lookup, struct xfrm_sec_ctx *ctx, u32 fl_secid,
338
+
u8 dir)
339
+
LSM_HOOK(int, 1, xfrm_state_pol_flow_match, struct xfrm_state *x,
340
+
struct xfrm_policy *xp, const struct flowi *fl)
341
+
LSM_HOOK(int, 0, xfrm_decode_session, struct sk_buff *skb, u32 *secid,
342
+
int ckall)
343
+
#endif /* CONFIG_SECURITY_NETWORK_XFRM */
344
+
345
+
/* key management security hooks */
346
+
#ifdef CONFIG_KEYS
347
+
LSM_HOOK(int, 0, key_alloc, struct key *key, const struct cred *cred,
348
+
unsigned long flags)
349
+
LSM_HOOK(void, LSM_RET_VOID, key_free, struct key *key)
350
+
LSM_HOOK(int, 0, key_permission, key_ref_t key_ref, const struct cred *cred,
351
+
unsigned perm)
352
+
LSM_HOOK(int, 0, key_getsecurity, struct key *key, char **_buffer)
353
+
#endif /* CONFIG_KEYS */
354
+
355
+
#ifdef CONFIG_AUDIT
356
+
LSM_HOOK(int, 0, audit_rule_init, u32 field, u32 op, char *rulestr,
357
+
void **lsmrule)
358
+
LSM_HOOK(int, 0, audit_rule_known, struct audit_krule *krule)
359
+
LSM_HOOK(int, 0, audit_rule_match, u32 secid, u32 field, u32 op, void *lsmrule)
360
+
LSM_HOOK(void, LSM_RET_VOID, audit_rule_free, void *lsmrule)
361
+
#endif /* CONFIG_AUDIT */
362
+
363
+
#ifdef CONFIG_BPF_SYSCALL
364
+
LSM_HOOK(int, 0, bpf, int cmd, union bpf_attr *attr, unsigned int size)
365
+
LSM_HOOK(int, 0, bpf_map, struct bpf_map *map, fmode_t fmode)
366
+
LSM_HOOK(int, 0, bpf_prog, struct bpf_prog *prog)
367
+
LSM_HOOK(int, 0, bpf_map_alloc_security, struct bpf_map *map)
368
+
LSM_HOOK(void, LSM_RET_VOID, bpf_map_free_security, struct bpf_map *map)
369
+
LSM_HOOK(int, 0, bpf_prog_alloc_security, struct bpf_prog_aux *aux)
370
+
LSM_HOOK(void, LSM_RET_VOID, bpf_prog_free_security, struct bpf_prog_aux *aux)
371
+
#endif /* CONFIG_BPF_SYSCALL */
372
+
373
+
LSM_HOOK(int, 0, locked_down, enum lockdown_reason what)
374
+
375
+
#ifdef CONFIG_PERF_EVENTS
376
+
LSM_HOOK(int, 0, perf_event_open, struct perf_event_attr *attr, int type)
377
+
LSM_HOOK(int, 0, perf_event_alloc, struct perf_event *event)
378
+
LSM_HOOK(void, LSM_RET_VOID, perf_event_free, struct perf_event *event)
379
+
LSM_HOOK(int, 0, perf_event_read, struct perf_event *event)
380
+
LSM_HOOK(int, 0, perf_event_write, struct perf_event *event)
381
+
#endif /* CONFIG_PERF_EVENTS */
+12
-616
include/linux/lsm_hooks.h
+12
-616
include/linux/lsm_hooks.h
···
1456
1456
* @what: kernel feature being accessed
1457
1457
*/
1458
1458
union security_list_options {
1459
-
int (*binder_set_context_mgr)(struct task_struct *mgr);
1460
-
int (*binder_transaction)(struct task_struct *from,
1461
-
struct task_struct *to);
1462
-
int (*binder_transfer_binder)(struct task_struct *from,
1463
-
struct task_struct *to);
1464
-
int (*binder_transfer_file)(struct task_struct *from,
1465
-
struct task_struct *to,
1466
-
struct file *file);
1467
-
1468
-
int (*ptrace_access_check)(struct task_struct *child,
1469
-
unsigned int mode);
1470
-
int (*ptrace_traceme)(struct task_struct *parent);
1471
-
int (*capget)(struct task_struct *target, kernel_cap_t *effective,
1472
-
kernel_cap_t *inheritable, kernel_cap_t *permitted);
1473
-
int (*capset)(struct cred *new, const struct cred *old,
1474
-
const kernel_cap_t *effective,
1475
-
const kernel_cap_t *inheritable,
1476
-
const kernel_cap_t *permitted);
1477
-
int (*capable)(const struct cred *cred,
1478
-
struct user_namespace *ns,
1479
-
int cap,
1480
-
unsigned int opts);
1481
-
int (*quotactl)(int cmds, int type, int id, struct super_block *sb);
1482
-
int (*quota_on)(struct dentry *dentry);
1483
-
int (*syslog)(int type);
1484
-
int (*settime)(const struct timespec64 *ts, const struct timezone *tz);
1485
-
int (*vm_enough_memory)(struct mm_struct *mm, long pages);
1486
-
1487
-
int (*bprm_set_creds)(struct linux_binprm *bprm);
1488
-
int (*bprm_check_security)(struct linux_binprm *bprm);
1489
-
void (*bprm_committing_creds)(struct linux_binprm *bprm);
1490
-
void (*bprm_committed_creds)(struct linux_binprm *bprm);
1491
-
1492
-
int (*fs_context_dup)(struct fs_context *fc, struct fs_context *src_sc);
1493
-
int (*fs_context_parse_param)(struct fs_context *fc, struct fs_parameter *param);
1494
-
1495
-
int (*sb_alloc_security)(struct super_block *sb);
1496
-
void (*sb_free_security)(struct super_block *sb);
1497
-
void (*sb_free_mnt_opts)(void *mnt_opts);
1498
-
int (*sb_eat_lsm_opts)(char *orig, void **mnt_opts);
1499
-
int (*sb_remount)(struct super_block *sb, void *mnt_opts);
1500
-
int (*sb_kern_mount)(struct super_block *sb);
1501
-
int (*sb_show_options)(struct seq_file *m, struct super_block *sb);
1502
-
int (*sb_statfs)(struct dentry *dentry);
1503
-
int (*sb_mount)(const char *dev_name, const struct path *path,
1504
-
const char *type, unsigned long flags, void *data);
1505
-
int (*sb_umount)(struct vfsmount *mnt, int flags);
1506
-
int (*sb_pivotroot)(const struct path *old_path, const struct path *new_path);
1507
-
int (*sb_set_mnt_opts)(struct super_block *sb,
1508
-
void *mnt_opts,
1509
-
unsigned long kern_flags,
1510
-
unsigned long *set_kern_flags);
1511
-
int (*sb_clone_mnt_opts)(const struct super_block *oldsb,
1512
-
struct super_block *newsb,
1513
-
unsigned long kern_flags,
1514
-
unsigned long *set_kern_flags);
1515
-
int (*sb_add_mnt_opt)(const char *option, const char *val, int len,
1516
-
void **mnt_opts);
1517
-
int (*move_mount)(const struct path *from_path, const struct path *to_path);
1518
-
int (*dentry_init_security)(struct dentry *dentry, int mode,
1519
-
const struct qstr *name, void **ctx,
1520
-
u32 *ctxlen);
1521
-
int (*dentry_create_files_as)(struct dentry *dentry, int mode,
1522
-
struct qstr *name,
1523
-
const struct cred *old,
1524
-
struct cred *new);
1525
-
1526
-
1527
-
#ifdef CONFIG_SECURITY_PATH
1528
-
int (*path_unlink)(const struct path *dir, struct dentry *dentry);
1529
-
int (*path_mkdir)(const struct path *dir, struct dentry *dentry,
1530
-
umode_t mode);
1531
-
int (*path_rmdir)(const struct path *dir, struct dentry *dentry);
1532
-
int (*path_mknod)(const struct path *dir, struct dentry *dentry,
1533
-
umode_t mode, unsigned int dev);
1534
-
int (*path_truncate)(const struct path *path);
1535
-
int (*path_symlink)(const struct path *dir, struct dentry *dentry,
1536
-
const char *old_name);
1537
-
int (*path_link)(struct dentry *old_dentry, const struct path *new_dir,
1538
-
struct dentry *new_dentry);
1539
-
int (*path_rename)(const struct path *old_dir, struct dentry *old_dentry,
1540
-
const struct path *new_dir,
1541
-
struct dentry *new_dentry);
1542
-
int (*path_chmod)(const struct path *path, umode_t mode);
1543
-
int (*path_chown)(const struct path *path, kuid_t uid, kgid_t gid);
1544
-
int (*path_chroot)(const struct path *path);
1545
-
#endif
1546
-
/* Needed for inode based security check */
1547
-
int (*path_notify)(const struct path *path, u64 mask,
1548
-
unsigned int obj_type);
1549
-
int (*inode_alloc_security)(struct inode *inode);
1550
-
void (*inode_free_security)(struct inode *inode);
1551
-
int (*inode_init_security)(struct inode *inode, struct inode *dir,
1552
-
const struct qstr *qstr,
1553
-
const char **name, void **value,
1554
-
size_t *len);
1555
-
int (*inode_create)(struct inode *dir, struct dentry *dentry,
1556
-
umode_t mode);
1557
-
int (*inode_link)(struct dentry *old_dentry, struct inode *dir,
1558
-
struct dentry *new_dentry);
1559
-
int (*inode_unlink)(struct inode *dir, struct dentry *dentry);
1560
-
int (*inode_symlink)(struct inode *dir, struct dentry *dentry,
1561
-
const char *old_name);
1562
-
int (*inode_mkdir)(struct inode *dir, struct dentry *dentry,
1563
-
umode_t mode);
1564
-
int (*inode_rmdir)(struct inode *dir, struct dentry *dentry);
1565
-
int (*inode_mknod)(struct inode *dir, struct dentry *dentry,
1566
-
umode_t mode, dev_t dev);
1567
-
int (*inode_rename)(struct inode *old_dir, struct dentry *old_dentry,
1568
-
struct inode *new_dir,
1569
-
struct dentry *new_dentry);
1570
-
int (*inode_readlink)(struct dentry *dentry);
1571
-
int (*inode_follow_link)(struct dentry *dentry, struct inode *inode,
1572
-
bool rcu);
1573
-
int (*inode_permission)(struct inode *inode, int mask);
1574
-
int (*inode_setattr)(struct dentry *dentry, struct iattr *attr);
1575
-
int (*inode_getattr)(const struct path *path);
1576
-
int (*inode_setxattr)(struct dentry *dentry, const char *name,
1577
-
const void *value, size_t size, int flags);
1578
-
void (*inode_post_setxattr)(struct dentry *dentry, const char *name,
1579
-
const void *value, size_t size,
1580
-
int flags);
1581
-
int (*inode_getxattr)(struct dentry *dentry, const char *name);
1582
-
int (*inode_listxattr)(struct dentry *dentry);
1583
-
int (*inode_removexattr)(struct dentry *dentry, const char *name);
1584
-
int (*inode_need_killpriv)(struct dentry *dentry);
1585
-
int (*inode_killpriv)(struct dentry *dentry);
1586
-
int (*inode_getsecurity)(struct inode *inode, const char *name,
1587
-
void **buffer, bool alloc);
1588
-
int (*inode_setsecurity)(struct inode *inode, const char *name,
1589
-
const void *value, size_t size,
1590
-
int flags);
1591
-
int (*inode_listsecurity)(struct inode *inode, char *buffer,
1592
-
size_t buffer_size);
1593
-
void (*inode_getsecid)(struct inode *inode, u32 *secid);
1594
-
int (*inode_copy_up)(struct dentry *src, struct cred **new);
1595
-
int (*inode_copy_up_xattr)(const char *name);
1596
-
1597
-
int (*kernfs_init_security)(struct kernfs_node *kn_dir,
1598
-
struct kernfs_node *kn);
1599
-
1600
-
int (*file_permission)(struct file *file, int mask);
1601
-
int (*file_alloc_security)(struct file *file);
1602
-
void (*file_free_security)(struct file *file);
1603
-
int (*file_ioctl)(struct file *file, unsigned int cmd,
1604
-
unsigned long arg);
1605
-
int (*mmap_addr)(unsigned long addr);
1606
-
int (*mmap_file)(struct file *file, unsigned long reqprot,
1607
-
unsigned long prot, unsigned long flags);
1608
-
int (*file_mprotect)(struct vm_area_struct *vma, unsigned long reqprot,
1609
-
unsigned long prot);
1610
-
int (*file_lock)(struct file *file, unsigned int cmd);
1611
-
int (*file_fcntl)(struct file *file, unsigned int cmd,
1612
-
unsigned long arg);
1613
-
void (*file_set_fowner)(struct file *file);
1614
-
int (*file_send_sigiotask)(struct task_struct *tsk,
1615
-
struct fown_struct *fown, int sig);
1616
-
int (*file_receive)(struct file *file);
1617
-
int (*file_open)(struct file *file);
1618
-
1619
-
int (*task_alloc)(struct task_struct *task, unsigned long clone_flags);
1620
-
void (*task_free)(struct task_struct *task);
1621
-
int (*cred_alloc_blank)(struct cred *cred, gfp_t gfp);
1622
-
void (*cred_free)(struct cred *cred);
1623
-
int (*cred_prepare)(struct cred *new, const struct cred *old,
1624
-
gfp_t gfp);
1625
-
void (*cred_transfer)(struct cred *new, const struct cred *old);
1626
-
void (*cred_getsecid)(const struct cred *c, u32 *secid);
1627
-
int (*kernel_act_as)(struct cred *new, u32 secid);
1628
-
int (*kernel_create_files_as)(struct cred *new, struct inode *inode);
1629
-
int (*kernel_module_request)(char *kmod_name);
1630
-
int (*kernel_load_data)(enum kernel_load_data_id id);
1631
-
int (*kernel_read_file)(struct file *file, enum kernel_read_file_id id);
1632
-
int (*kernel_post_read_file)(struct file *file, char *buf, loff_t size,
1633
-
enum kernel_read_file_id id);
1634
-
int (*task_fix_setuid)(struct cred *new, const struct cred *old,
1635
-
int flags);
1636
-
int (*task_setpgid)(struct task_struct *p, pid_t pgid);
1637
-
int (*task_getpgid)(struct task_struct *p);
1638
-
int (*task_getsid)(struct task_struct *p);
1639
-
void (*task_getsecid)(struct task_struct *p, u32 *secid);
1640
-
int (*task_setnice)(struct task_struct *p, int nice);
1641
-
int (*task_setioprio)(struct task_struct *p, int ioprio);
1642
-
int (*task_getioprio)(struct task_struct *p);
1643
-
int (*task_prlimit)(const struct cred *cred, const struct cred *tcred,
1644
-
unsigned int flags);
1645
-
int (*task_setrlimit)(struct task_struct *p, unsigned int resource,
1646
-
struct rlimit *new_rlim);
1647
-
int (*task_setscheduler)(struct task_struct *p);
1648
-
int (*task_getscheduler)(struct task_struct *p);
1649
-
int (*task_movememory)(struct task_struct *p);
1650
-
int (*task_kill)(struct task_struct *p, struct kernel_siginfo *info,
1651
-
int sig, const struct cred *cred);
1652
-
int (*task_prctl)(int option, unsigned long arg2, unsigned long arg3,
1653
-
unsigned long arg4, unsigned long arg5);
1654
-
void (*task_to_inode)(struct task_struct *p, struct inode *inode);
1655
-
1656
-
int (*ipc_permission)(struct kern_ipc_perm *ipcp, short flag);
1657
-
void (*ipc_getsecid)(struct kern_ipc_perm *ipcp, u32 *secid);
1658
-
1659
-
int (*msg_msg_alloc_security)(struct msg_msg *msg);
1660
-
void (*msg_msg_free_security)(struct msg_msg *msg);
1661
-
1662
-
int (*msg_queue_alloc_security)(struct kern_ipc_perm *perm);
1663
-
void (*msg_queue_free_security)(struct kern_ipc_perm *perm);
1664
-
int (*msg_queue_associate)(struct kern_ipc_perm *perm, int msqflg);
1665
-
int (*msg_queue_msgctl)(struct kern_ipc_perm *perm, int cmd);
1666
-
int (*msg_queue_msgsnd)(struct kern_ipc_perm *perm, struct msg_msg *msg,
1667
-
int msqflg);
1668
-
int (*msg_queue_msgrcv)(struct kern_ipc_perm *perm, struct msg_msg *msg,
1669
-
struct task_struct *target, long type,
1670
-
int mode);
1671
-
1672
-
int (*shm_alloc_security)(struct kern_ipc_perm *perm);
1673
-
void (*shm_free_security)(struct kern_ipc_perm *perm);
1674
-
int (*shm_associate)(struct kern_ipc_perm *perm, int shmflg);
1675
-
int (*shm_shmctl)(struct kern_ipc_perm *perm, int cmd);
1676
-
int (*shm_shmat)(struct kern_ipc_perm *perm, char __user *shmaddr,
1677
-
int shmflg);
1678
-
1679
-
int (*sem_alloc_security)(struct kern_ipc_perm *perm);
1680
-
void (*sem_free_security)(struct kern_ipc_perm *perm);
1681
-
int (*sem_associate)(struct kern_ipc_perm *perm, int semflg);
1682
-
int (*sem_semctl)(struct kern_ipc_perm *perm, int cmd);
1683
-
int (*sem_semop)(struct kern_ipc_perm *perm, struct sembuf *sops,
1684
-
unsigned nsops, int alter);
1685
-
1686
-
int (*netlink_send)(struct sock *sk, struct sk_buff *skb);
1687
-
1688
-
void (*d_instantiate)(struct dentry *dentry, struct inode *inode);
1689
-
1690
-
int (*getprocattr)(struct task_struct *p, char *name, char **value);
1691
-
int (*setprocattr)(const char *name, void *value, size_t size);
1692
-
int (*ismaclabel)(const char *name);
1693
-
int (*secid_to_secctx)(u32 secid, char **secdata, u32 *seclen);
1694
-
int (*secctx_to_secid)(const char *secdata, u32 seclen, u32 *secid);
1695
-
void (*release_secctx)(char *secdata, u32 seclen);
1696
-
1697
-
void (*inode_invalidate_secctx)(struct inode *inode);
1698
-
int (*inode_notifysecctx)(struct inode *inode, void *ctx, u32 ctxlen);
1699
-
int (*inode_setsecctx)(struct dentry *dentry, void *ctx, u32 ctxlen);
1700
-
int (*inode_getsecctx)(struct inode *inode, void **ctx, u32 *ctxlen);
1701
-
1702
-
#ifdef CONFIG_SECURITY_NETWORK
1703
-
int (*unix_stream_connect)(struct sock *sock, struct sock *other,
1704
-
struct sock *newsk);
1705
-
int (*unix_may_send)(struct socket *sock, struct socket *other);
1706
-
1707
-
int (*socket_create)(int family, int type, int protocol, int kern);
1708
-
int (*socket_post_create)(struct socket *sock, int family, int type,
1709
-
int protocol, int kern);
1710
-
int (*socket_socketpair)(struct socket *socka, struct socket *sockb);
1711
-
int (*socket_bind)(struct socket *sock, struct sockaddr *address,
1712
-
int addrlen);
1713
-
int (*socket_connect)(struct socket *sock, struct sockaddr *address,
1714
-
int addrlen);
1715
-
int (*socket_listen)(struct socket *sock, int backlog);
1716
-
int (*socket_accept)(struct socket *sock, struct socket *newsock);
1717
-
int (*socket_sendmsg)(struct socket *sock, struct msghdr *msg,
1718
-
int size);
1719
-
int (*socket_recvmsg)(struct socket *sock, struct msghdr *msg,
1720
-
int size, int flags);
1721
-
int (*socket_getsockname)(struct socket *sock);
1722
-
int (*socket_getpeername)(struct socket *sock);
1723
-
int (*socket_getsockopt)(struct socket *sock, int level, int optname);
1724
-
int (*socket_setsockopt)(struct socket *sock, int level, int optname);
1725
-
int (*socket_shutdown)(struct socket *sock, int how);
1726
-
int (*socket_sock_rcv_skb)(struct sock *sk, struct sk_buff *skb);
1727
-
int (*socket_getpeersec_stream)(struct socket *sock,
1728
-
char __user *optval,
1729
-
int __user *optlen, unsigned len);
1730
-
int (*socket_getpeersec_dgram)(struct socket *sock,
1731
-
struct sk_buff *skb, u32 *secid);
1732
-
int (*sk_alloc_security)(struct sock *sk, int family, gfp_t priority);
1733
-
void (*sk_free_security)(struct sock *sk);
1734
-
void (*sk_clone_security)(const struct sock *sk, struct sock *newsk);
1735
-
void (*sk_getsecid)(struct sock *sk, u32 *secid);
1736
-
void (*sock_graft)(struct sock *sk, struct socket *parent);
1737
-
int (*inet_conn_request)(struct sock *sk, struct sk_buff *skb,
1738
-
struct request_sock *req);
1739
-
void (*inet_csk_clone)(struct sock *newsk,
1740
-
const struct request_sock *req);
1741
-
void (*inet_conn_established)(struct sock *sk, struct sk_buff *skb);
1742
-
int (*secmark_relabel_packet)(u32 secid);
1743
-
void (*secmark_refcount_inc)(void);
1744
-
void (*secmark_refcount_dec)(void);
1745
-
void (*req_classify_flow)(const struct request_sock *req,
1746
-
struct flowi *fl);
1747
-
int (*tun_dev_alloc_security)(void **security);
1748
-
void (*tun_dev_free_security)(void *security);
1749
-
int (*tun_dev_create)(void);
1750
-
int (*tun_dev_attach_queue)(void *security);
1751
-
int (*tun_dev_attach)(struct sock *sk, void *security);
1752
-
int (*tun_dev_open)(void *security);
1753
-
int (*sctp_assoc_request)(struct sctp_endpoint *ep,
1754
-
struct sk_buff *skb);
1755
-
int (*sctp_bind_connect)(struct sock *sk, int optname,
1756
-
struct sockaddr *address, int addrlen);
1757
-
void (*sctp_sk_clone)(struct sctp_endpoint *ep, struct sock *sk,
1758
-
struct sock *newsk);
1759
-
#endif /* CONFIG_SECURITY_NETWORK */
1760
-
1761
-
#ifdef CONFIG_SECURITY_INFINIBAND
1762
-
int (*ib_pkey_access)(void *sec, u64 subnet_prefix, u16 pkey);
1763
-
int (*ib_endport_manage_subnet)(void *sec, const char *dev_name,
1764
-
u8 port_num);
1765
-
int (*ib_alloc_security)(void **sec);
1766
-
void (*ib_free_security)(void *sec);
1767
-
#endif /* CONFIG_SECURITY_INFINIBAND */
1768
-
1769
-
#ifdef CONFIG_SECURITY_NETWORK_XFRM
1770
-
int (*xfrm_policy_alloc_security)(struct xfrm_sec_ctx **ctxp,
1771
-
struct xfrm_user_sec_ctx *sec_ctx,
1772
-
gfp_t gfp);
1773
-
int (*xfrm_policy_clone_security)(struct xfrm_sec_ctx *old_ctx,
1774
-
struct xfrm_sec_ctx **new_ctx);
1775
-
void (*xfrm_policy_free_security)(struct xfrm_sec_ctx *ctx);
1776
-
int (*xfrm_policy_delete_security)(struct xfrm_sec_ctx *ctx);
1777
-
int (*xfrm_state_alloc)(struct xfrm_state *x,
1778
-
struct xfrm_user_sec_ctx *sec_ctx);
1779
-
int (*xfrm_state_alloc_acquire)(struct xfrm_state *x,
1780
-
struct xfrm_sec_ctx *polsec,
1781
-
u32 secid);
1782
-
void (*xfrm_state_free_security)(struct xfrm_state *x);
1783
-
int (*xfrm_state_delete_security)(struct xfrm_state *x);
1784
-
int (*xfrm_policy_lookup)(struct xfrm_sec_ctx *ctx, u32 fl_secid,
1785
-
u8 dir);
1786
-
int (*xfrm_state_pol_flow_match)(struct xfrm_state *x,
1787
-
struct xfrm_policy *xp,
1788
-
const struct flowi *fl);
1789
-
int (*xfrm_decode_session)(struct sk_buff *skb, u32 *secid, int ckall);
1790
-
#endif /* CONFIG_SECURITY_NETWORK_XFRM */
1791
-
1792
-
/* key management security hooks */
1793
-
#ifdef CONFIG_KEYS
1794
-
int (*key_alloc)(struct key *key, const struct cred *cred,
1795
-
unsigned long flags);
1796
-
void (*key_free)(struct key *key);
1797
-
int (*key_permission)(key_ref_t key_ref, const struct cred *cred,
1798
-
unsigned perm);
1799
-
int (*key_getsecurity)(struct key *key, char **_buffer);
1800
-
#endif /* CONFIG_KEYS */
1801
-
1802
-
#ifdef CONFIG_AUDIT
1803
-
int (*audit_rule_init)(u32 field, u32 op, char *rulestr,
1804
-
void **lsmrule);
1805
-
int (*audit_rule_known)(struct audit_krule *krule);
1806
-
int (*audit_rule_match)(u32 secid, u32 field, u32 op, void *lsmrule);
1807
-
void (*audit_rule_free)(void *lsmrule);
1808
-
#endif /* CONFIG_AUDIT */
1809
-
1810
-
#ifdef CONFIG_BPF_SYSCALL
1811
-
int (*bpf)(int cmd, union bpf_attr *attr,
1812
-
unsigned int size);
1813
-
int (*bpf_map)(struct bpf_map *map, fmode_t fmode);
1814
-
int (*bpf_prog)(struct bpf_prog *prog);
1815
-
int (*bpf_map_alloc_security)(struct bpf_map *map);
1816
-
void (*bpf_map_free_security)(struct bpf_map *map);
1817
-
int (*bpf_prog_alloc_security)(struct bpf_prog_aux *aux);
1818
-
void (*bpf_prog_free_security)(struct bpf_prog_aux *aux);
1819
-
#endif /* CONFIG_BPF_SYSCALL */
1820
-
int (*locked_down)(enum lockdown_reason what);
1821
-
#ifdef CONFIG_PERF_EVENTS
1822
-
int (*perf_event_open)(struct perf_event_attr *attr, int type);
1823
-
int (*perf_event_alloc)(struct perf_event *event);
1824
-
void (*perf_event_free)(struct perf_event *event);
1825
-
int (*perf_event_read)(struct perf_event *event);
1826
-
int (*perf_event_write)(struct perf_event *event);
1827
-
1828
-
#endif
1459
+
#define LSM_HOOK(RET, DEFAULT, NAME, ...) RET (*NAME)(__VA_ARGS__);
1460
+
#include "lsm_hook_defs.h"
1461
+
#undef LSM_HOOK
1829
1462
};
1830
1463
1831
1464
struct security_hook_heads {
1832
-
struct hlist_head binder_set_context_mgr;
1833
-
struct hlist_head binder_transaction;
1834
-
struct hlist_head binder_transfer_binder;
1835
-
struct hlist_head binder_transfer_file;
1836
-
struct hlist_head ptrace_access_check;
1837
-
struct hlist_head ptrace_traceme;
1838
-
struct hlist_head capget;
1839
-
struct hlist_head capset;
1840
-
struct hlist_head capable;
1841
-
struct hlist_head quotactl;
1842
-
struct hlist_head quota_on;
1843
-
struct hlist_head syslog;
1844
-
struct hlist_head settime;
1845
-
struct hlist_head vm_enough_memory;
1846
-
struct hlist_head bprm_set_creds;
1847
-
struct hlist_head bprm_check_security;
1848
-
struct hlist_head bprm_committing_creds;
1849
-
struct hlist_head bprm_committed_creds;
1850
-
struct hlist_head fs_context_dup;
1851
-
struct hlist_head fs_context_parse_param;
1852
-
struct hlist_head sb_alloc_security;
1853
-
struct hlist_head sb_free_security;
1854
-
struct hlist_head sb_free_mnt_opts;
1855
-
struct hlist_head sb_eat_lsm_opts;
1856
-
struct hlist_head sb_remount;
1857
-
struct hlist_head sb_kern_mount;
1858
-
struct hlist_head sb_show_options;
1859
-
struct hlist_head sb_statfs;
1860
-
struct hlist_head sb_mount;
1861
-
struct hlist_head sb_umount;
1862
-
struct hlist_head sb_pivotroot;
1863
-
struct hlist_head sb_set_mnt_opts;
1864
-
struct hlist_head sb_clone_mnt_opts;
1865
-
struct hlist_head sb_add_mnt_opt;
1866
-
struct hlist_head move_mount;
1867
-
struct hlist_head dentry_init_security;
1868
-
struct hlist_head dentry_create_files_as;
1869
-
#ifdef CONFIG_SECURITY_PATH
1870
-
struct hlist_head path_unlink;
1871
-
struct hlist_head path_mkdir;
1872
-
struct hlist_head path_rmdir;
1873
-
struct hlist_head path_mknod;
1874
-
struct hlist_head path_truncate;
1875
-
struct hlist_head path_symlink;
1876
-
struct hlist_head path_link;
1877
-
struct hlist_head path_rename;
1878
-
struct hlist_head path_chmod;
1879
-
struct hlist_head path_chown;
1880
-
struct hlist_head path_chroot;
1881
-
#endif
1882
-
/* Needed for inode based modules as well */
1883
-
struct hlist_head path_notify;
1884
-
struct hlist_head inode_alloc_security;
1885
-
struct hlist_head inode_free_security;
1886
-
struct hlist_head inode_init_security;
1887
-
struct hlist_head inode_create;
1888
-
struct hlist_head inode_link;
1889
-
struct hlist_head inode_unlink;
1890
-
struct hlist_head inode_symlink;
1891
-
struct hlist_head inode_mkdir;
1892
-
struct hlist_head inode_rmdir;
1893
-
struct hlist_head inode_mknod;
1894
-
struct hlist_head inode_rename;
1895
-
struct hlist_head inode_readlink;
1896
-
struct hlist_head inode_follow_link;
1897
-
struct hlist_head inode_permission;
1898
-
struct hlist_head inode_setattr;
1899
-
struct hlist_head inode_getattr;
1900
-
struct hlist_head inode_setxattr;
1901
-
struct hlist_head inode_post_setxattr;
1902
-
struct hlist_head inode_getxattr;
1903
-
struct hlist_head inode_listxattr;
1904
-
struct hlist_head inode_removexattr;
1905
-
struct hlist_head inode_need_killpriv;
1906
-
struct hlist_head inode_killpriv;
1907
-
struct hlist_head inode_getsecurity;
1908
-
struct hlist_head inode_setsecurity;
1909
-
struct hlist_head inode_listsecurity;
1910
-
struct hlist_head inode_getsecid;
1911
-
struct hlist_head inode_copy_up;
1912
-
struct hlist_head inode_copy_up_xattr;
1913
-
struct hlist_head kernfs_init_security;
1914
-
struct hlist_head file_permission;
1915
-
struct hlist_head file_alloc_security;
1916
-
struct hlist_head file_free_security;
1917
-
struct hlist_head file_ioctl;
1918
-
struct hlist_head mmap_addr;
1919
-
struct hlist_head mmap_file;
1920
-
struct hlist_head file_mprotect;
1921
-
struct hlist_head file_lock;
1922
-
struct hlist_head file_fcntl;
1923
-
struct hlist_head file_set_fowner;
1924
-
struct hlist_head file_send_sigiotask;
1925
-
struct hlist_head file_receive;
1926
-
struct hlist_head file_open;
1927
-
struct hlist_head task_alloc;
1928
-
struct hlist_head task_free;
1929
-
struct hlist_head cred_alloc_blank;
1930
-
struct hlist_head cred_free;
1931
-
struct hlist_head cred_prepare;
1932
-
struct hlist_head cred_transfer;
1933
-
struct hlist_head cred_getsecid;
1934
-
struct hlist_head kernel_act_as;
1935
-
struct hlist_head kernel_create_files_as;
1936
-
struct hlist_head kernel_load_data;
1937
-
struct hlist_head kernel_read_file;
1938
-
struct hlist_head kernel_post_read_file;
1939
-
struct hlist_head kernel_module_request;
1940
-
struct hlist_head task_fix_setuid;
1941
-
struct hlist_head task_setpgid;
1942
-
struct hlist_head task_getpgid;
1943
-
struct hlist_head task_getsid;
1944
-
struct hlist_head task_getsecid;
1945
-
struct hlist_head task_setnice;
1946
-
struct hlist_head task_setioprio;
1947
-
struct hlist_head task_getioprio;
1948
-
struct hlist_head task_prlimit;
1949
-
struct hlist_head task_setrlimit;
1950
-
struct hlist_head task_setscheduler;
1951
-
struct hlist_head task_getscheduler;
1952
-
struct hlist_head task_movememory;
1953
-
struct hlist_head task_kill;
1954
-
struct hlist_head task_prctl;
1955
-
struct hlist_head task_to_inode;
1956
-
struct hlist_head ipc_permission;
1957
-
struct hlist_head ipc_getsecid;
1958
-
struct hlist_head msg_msg_alloc_security;
1959
-
struct hlist_head msg_msg_free_security;
1960
-
struct hlist_head msg_queue_alloc_security;
1961
-
struct hlist_head msg_queue_free_security;
1962
-
struct hlist_head msg_queue_associate;
1963
-
struct hlist_head msg_queue_msgctl;
1964
-
struct hlist_head msg_queue_msgsnd;
1965
-
struct hlist_head msg_queue_msgrcv;
1966
-
struct hlist_head shm_alloc_security;
1967
-
struct hlist_head shm_free_security;
1968
-
struct hlist_head shm_associate;
1969
-
struct hlist_head shm_shmctl;
1970
-
struct hlist_head shm_shmat;
1971
-
struct hlist_head sem_alloc_security;
1972
-
struct hlist_head sem_free_security;
1973
-
struct hlist_head sem_associate;
1974
-
struct hlist_head sem_semctl;
1975
-
struct hlist_head sem_semop;
1976
-
struct hlist_head netlink_send;
1977
-
struct hlist_head d_instantiate;
1978
-
struct hlist_head getprocattr;
1979
-
struct hlist_head setprocattr;
1980
-
struct hlist_head ismaclabel;
1981
-
struct hlist_head secid_to_secctx;
1982
-
struct hlist_head secctx_to_secid;
1983
-
struct hlist_head release_secctx;
1984
-
struct hlist_head inode_invalidate_secctx;
1985
-
struct hlist_head inode_notifysecctx;
1986
-
struct hlist_head inode_setsecctx;
1987
-
struct hlist_head inode_getsecctx;
1988
-
#ifdef CONFIG_SECURITY_NETWORK
1989
-
struct hlist_head unix_stream_connect;
1990
-
struct hlist_head unix_may_send;
1991
-
struct hlist_head socket_create;
1992
-
struct hlist_head socket_post_create;
1993
-
struct hlist_head socket_socketpair;
1994
-
struct hlist_head socket_bind;
1995
-
struct hlist_head socket_connect;
1996
-
struct hlist_head socket_listen;
1997
-
struct hlist_head socket_accept;
1998
-
struct hlist_head socket_sendmsg;
1999
-
struct hlist_head socket_recvmsg;
2000
-
struct hlist_head socket_getsockname;
2001
-
struct hlist_head socket_getpeername;
2002
-
struct hlist_head socket_getsockopt;
2003
-
struct hlist_head socket_setsockopt;
2004
-
struct hlist_head socket_shutdown;
2005
-
struct hlist_head socket_sock_rcv_skb;
2006
-
struct hlist_head socket_getpeersec_stream;
2007
-
struct hlist_head socket_getpeersec_dgram;
2008
-
struct hlist_head sk_alloc_security;
2009
-
struct hlist_head sk_free_security;
2010
-
struct hlist_head sk_clone_security;
2011
-
struct hlist_head sk_getsecid;
2012
-
struct hlist_head sock_graft;
2013
-
struct hlist_head inet_conn_request;
2014
-
struct hlist_head inet_csk_clone;
2015
-
struct hlist_head inet_conn_established;
2016
-
struct hlist_head secmark_relabel_packet;
2017
-
struct hlist_head secmark_refcount_inc;
2018
-
struct hlist_head secmark_refcount_dec;
2019
-
struct hlist_head req_classify_flow;
2020
-
struct hlist_head tun_dev_alloc_security;
2021
-
struct hlist_head tun_dev_free_security;
2022
-
struct hlist_head tun_dev_create;
2023
-
struct hlist_head tun_dev_attach_queue;
2024
-
struct hlist_head tun_dev_attach;
2025
-
struct hlist_head tun_dev_open;
2026
-
struct hlist_head sctp_assoc_request;
2027
-
struct hlist_head sctp_bind_connect;
2028
-
struct hlist_head sctp_sk_clone;
2029
-
#endif /* CONFIG_SECURITY_NETWORK */
2030
-
#ifdef CONFIG_SECURITY_INFINIBAND
2031
-
struct hlist_head ib_pkey_access;
2032
-
struct hlist_head ib_endport_manage_subnet;
2033
-
struct hlist_head ib_alloc_security;
2034
-
struct hlist_head ib_free_security;
2035
-
#endif /* CONFIG_SECURITY_INFINIBAND */
2036
-
#ifdef CONFIG_SECURITY_NETWORK_XFRM
2037
-
struct hlist_head xfrm_policy_alloc_security;
2038
-
struct hlist_head xfrm_policy_clone_security;
2039
-
struct hlist_head xfrm_policy_free_security;
2040
-
struct hlist_head xfrm_policy_delete_security;
2041
-
struct hlist_head xfrm_state_alloc;
2042
-
struct hlist_head xfrm_state_alloc_acquire;
2043
-
struct hlist_head xfrm_state_free_security;
2044
-
struct hlist_head xfrm_state_delete_security;
2045
-
struct hlist_head xfrm_policy_lookup;
2046
-
struct hlist_head xfrm_state_pol_flow_match;
2047
-
struct hlist_head xfrm_decode_session;
2048
-
#endif /* CONFIG_SECURITY_NETWORK_XFRM */
2049
-
#ifdef CONFIG_KEYS
2050
-
struct hlist_head key_alloc;
2051
-
struct hlist_head key_free;
2052
-
struct hlist_head key_permission;
2053
-
struct hlist_head key_getsecurity;
2054
-
#endif /* CONFIG_KEYS */
2055
-
#ifdef CONFIG_AUDIT
2056
-
struct hlist_head audit_rule_init;
2057
-
struct hlist_head audit_rule_known;
2058
-
struct hlist_head audit_rule_match;
2059
-
struct hlist_head audit_rule_free;
2060
-
#endif /* CONFIG_AUDIT */
2061
-
#ifdef CONFIG_BPF_SYSCALL
2062
-
struct hlist_head bpf;
2063
-
struct hlist_head bpf_map;
2064
-
struct hlist_head bpf_prog;
2065
-
struct hlist_head bpf_map_alloc_security;
2066
-
struct hlist_head bpf_map_free_security;
2067
-
struct hlist_head bpf_prog_alloc_security;
2068
-
struct hlist_head bpf_prog_free_security;
2069
-
#endif /* CONFIG_BPF_SYSCALL */
2070
-
struct hlist_head locked_down;
2071
-
#ifdef CONFIG_PERF_EVENTS
2072
-
struct hlist_head perf_event_open;
2073
-
struct hlist_head perf_event_alloc;
2074
-
struct hlist_head perf_event_free;
2075
-
struct hlist_head perf_event_read;
2076
-
struct hlist_head perf_event_write;
2077
-
#endif
1465
+
#define LSM_HOOK(RET, DEFAULT, NAME, ...) struct hlist_head NAME;
1466
+
#include "lsm_hook_defs.h"
1467
+
#undef LSM_HOOK
2078
1468
} __randomize_layout;
2079
1469
2080
1470
/*
···
1489
2099
int lbs_msg_msg;
1490
2100
int lbs_task;
1491
2101
};
2102
+
2103
+
/*
2104
+
* LSM_RET_VOID is used as the default value in LSM_HOOK definitions for void
2105
+
* LSM hooks (in include/linux/lsm_hook_defs.h).
2106
+
*/
2107
+
#define LSM_RET_VOID ((void) 0)
1492
2108
1493
2109
/*
1494
2110
* Initializing a security_hook_list structure takes
+30
-11
security/security.c
+30
-11
security/security.c
···
669
669
}
670
670
671
671
/*
672
+
* The default value of the LSM hook is defined in linux/lsm_hook_defs.h and
673
+
* can be accessed with:
674
+
*
675
+
* LSM_RET_DEFAULT(<hook_name>)
676
+
*
677
+
* The macros below define static constants for the default value of each
678
+
* LSM hook.
679
+
*/
680
+
#define LSM_RET_DEFAULT(NAME) (NAME##_default)
681
+
#define DECLARE_LSM_RET_DEFAULT_void(DEFAULT, NAME)
682
+
#define DECLARE_LSM_RET_DEFAULT_int(DEFAULT, NAME) \
683
+
static const int LSM_RET_DEFAULT(NAME) = (DEFAULT);
684
+
#define LSM_HOOK(RET, DEFAULT, NAME, ...) \
685
+
DECLARE_LSM_RET_DEFAULT_##RET(DEFAULT, NAME)
686
+
687
+
#include <linux/lsm_hook_defs.h>
688
+
#undef LSM_HOOK
689
+
690
+
/*
672
691
* Hook list operation macros.
673
692
*
674
693
* call_void_hook:
···
1357
1338
int rc;
1358
1339
1359
1340
if (unlikely(IS_PRIVATE(inode)))
1360
-
return -EOPNOTSUPP;
1341
+
return LSM_RET_DEFAULT(inode_getsecurity);
1361
1342
/*
1362
1343
* Only one module will provide an attribute with a given name.
1363
1344
*/
1364
1345
hlist_for_each_entry(hp, &security_hook_heads.inode_getsecurity, list) {
1365
1346
rc = hp->hook.inode_getsecurity(inode, name, buffer, alloc);
1366
-
if (rc != -EOPNOTSUPP)
1347
+
if (rc != LSM_RET_DEFAULT(inode_getsecurity))
1367
1348
return rc;
1368
1349
}
1369
-
return -EOPNOTSUPP;
1350
+
return LSM_RET_DEFAULT(inode_getsecurity);
1370
1351
}
1371
1352
1372
1353
int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags)
···
1375
1356
int rc;
1376
1357
1377
1358
if (unlikely(IS_PRIVATE(inode)))
1378
-
return -EOPNOTSUPP;
1359
+
return LSM_RET_DEFAULT(inode_setsecurity);
1379
1360
/*
1380
1361
* Only one module will provide an attribute with a given name.
1381
1362
*/
1382
1363
hlist_for_each_entry(hp, &security_hook_heads.inode_setsecurity, list) {
1383
1364
rc = hp->hook.inode_setsecurity(inode, name, value, size,
1384
1365
flags);
1385
-
if (rc != -EOPNOTSUPP)
1366
+
if (rc != LSM_RET_DEFAULT(inode_setsecurity))
1386
1367
return rc;
1387
1368
}
1388
-
return -EOPNOTSUPP;
1369
+
return LSM_RET_DEFAULT(inode_setsecurity);
1389
1370
}
1390
1371
1391
1372
int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size)
···
1759
1740
unsigned long arg4, unsigned long arg5)
1760
1741
{
1761
1742
int thisrc;
1762
-
int rc = -ENOSYS;
1743
+
int rc = LSM_RET_DEFAULT(task_prctl);
1763
1744
struct security_hook_list *hp;
1764
1745
1765
1746
hlist_for_each_entry(hp, &security_hook_heads.task_prctl, list) {
1766
1747
thisrc = hp->hook.task_prctl(option, arg2, arg3, arg4, arg5);
1767
-
if (thisrc != -ENOSYS) {
1748
+
if (thisrc != LSM_RET_DEFAULT(task_prctl)) {
1768
1749
rc = thisrc;
1769
1750
if (thisrc != 0)
1770
1751
break;
···
1936
1917
continue;
1937
1918
return hp->hook.getprocattr(p, name, value);
1938
1919
}
1939
-
return -EINVAL;
1920
+
return LSM_RET_DEFAULT(getprocattr);
1940
1921
}
1941
1922
1942
1923
int security_setprocattr(const char *lsm, const char *name, void *value,
···
1949
1930
continue;
1950
1931
return hp->hook.setprocattr(name, value, size);
1951
1932
}
1952
-
return -EINVAL;
1933
+
return LSM_RET_DEFAULT(setprocattr);
1953
1934
}
1954
1935
1955
1936
int security_netlink_send(struct sock *sk, struct sk_buff *skb)
···
2334
2315
const struct flowi *fl)
2335
2316
{
2336
2317
struct security_hook_list *hp;
2337
-
int rc = 1;
2318
+
int rc = LSM_RET_DEFAULT(xfrm_state_pol_flow_match);
2338
2319
2339
2320
/*
2340
2321
* Since this function is expected to return 0 or 1, the judgment