Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1/*
2 * Linux Security plug
3 *
4 * Copyright (C) 2001 WireX Communications, Inc <chris@wirex.com>
5 * Copyright (C) 2001 Greg Kroah-Hartman <greg@kroah.com>
6 * Copyright (C) 2001 Networks Associates Technology, Inc <ssmalley@nai.com>
7 * Copyright (C) 2001 James Morris <jmorris@intercode.com.au>
8 * Copyright (C) 2001 Silicon Graphics, Inc. (Trust Technology Group)
9 * Copyright (C) 2016 Mellanox Techonologies
10 *
11 * This program is free software; you can redistribute it and/or modify
12 * it under the terms of the GNU General Public License as published by
13 * the Free Software Foundation; either version 2 of the License, or
14 * (at your option) any later version.
15 *
16 * Due to this file being licensed under the GPL there is controversy over
17 * whether this permits you to write a module that #includes this file
18 * without placing your module under the GPL. Please consult a lawyer for
19 * advice before doing this.
20 *
21 */
22
23#ifndef __LINUX_SECURITY_H
24#define __LINUX_SECURITY_H
25
26#include <linux/kernel_read_file.h>
27#include <linux/key.h>
28#include <linux/capability.h>
29#include <linux/fs.h>
30#include <linux/slab.h>
31#include <linux/err.h>
32#include <linux/string.h>
33#include <linux/mm.h>
34#include <linux/sockptr.h>
35#include <linux/bpf.h>
36#include <uapi/linux/lsm.h>
37
38struct linux_binprm;
39struct cred;
40struct rlimit;
41struct kernel_siginfo;
42struct sembuf;
43struct kern_ipc_perm;
44struct audit_context;
45struct super_block;
46struct inode;
47struct dentry;
48struct file;
49struct vfsmount;
50struct path;
51struct qstr;
52struct iattr;
53struct fown_struct;
54struct file_operations;
55struct msg_msg;
56struct xattr;
57struct kernfs_node;
58struct xfrm_sec_ctx;
59struct mm_struct;
60struct fs_context;
61struct fs_parameter;
62enum fs_value_type;
63struct watch;
64struct watch_notification;
65struct lsm_ctx;
66
67/* Default (no) options for the capable function */
68#define CAP_OPT_NONE 0x0
69/* If capable should audit the security request */
70#define CAP_OPT_NOAUDIT BIT(1)
71/* If capable is being called by a setid function */
72#define CAP_OPT_INSETID BIT(2)
73
74/* LSM Agnostic defines for security_sb_set_mnt_opts() flags */
75#define SECURITY_LSM_NATIVE_LABELS 1
76
77struct ctl_table;
78struct audit_krule;
79struct user_namespace;
80struct timezone;
81
82enum lsm_event {
83 LSM_POLICY_CHANGE,
84};
85
86struct dm_verity_digest {
87 const char *alg;
88 const u8 *digest;
89 size_t digest_len;
90};
91
92enum lsm_integrity_type {
93 LSM_INT_DMVERITY_SIG_VALID,
94 LSM_INT_DMVERITY_ROOTHASH,
95 LSM_INT_FSVERITY_BUILTINSIG_VALID,
96};
97
98/*
99 * These are reasons that can be passed to the security_locked_down()
100 * LSM hook. Lockdown reasons that protect kernel integrity (ie, the
101 * ability for userland to modify kernel code) are placed before
102 * LOCKDOWN_INTEGRITY_MAX. Lockdown reasons that protect kernel
103 * confidentiality (ie, the ability for userland to extract
104 * information from the running kernel that would otherwise be
105 * restricted) are placed before LOCKDOWN_CONFIDENTIALITY_MAX.
106 *
107 * LSM authors should note that the semantics of any given lockdown
108 * reason are not guaranteed to be stable - the same reason may block
109 * one set of features in one kernel release, and a slightly different
110 * set of features in a later kernel release. LSMs that seek to expose
111 * lockdown policy at any level of granularity other than "none",
112 * "integrity" or "confidentiality" are responsible for either
113 * ensuring that they expose a consistent level of functionality to
114 * userland, or ensuring that userland is aware that this is
115 * potentially a moving target. It is easy to misuse this information
116 * in a way that could break userspace. Please be careful not to do
117 * so.
118 *
119 * If you add to this, remember to extend lockdown_reasons in
120 * security/lockdown/lockdown.c.
121 */
122enum lockdown_reason {
123 LOCKDOWN_NONE,
124 LOCKDOWN_MODULE_SIGNATURE,
125 LOCKDOWN_DEV_MEM,
126 LOCKDOWN_EFI_TEST,
127 LOCKDOWN_KEXEC,
128 LOCKDOWN_HIBERNATION,
129 LOCKDOWN_PCI_ACCESS,
130 LOCKDOWN_IOPORT,
131 LOCKDOWN_MSR,
132 LOCKDOWN_ACPI_TABLES,
133 LOCKDOWN_DEVICE_TREE,
134 LOCKDOWN_PCMCIA_CIS,
135 LOCKDOWN_TIOCSSERIAL,
136 LOCKDOWN_MODULE_PARAMETERS,
137 LOCKDOWN_MMIOTRACE,
138 LOCKDOWN_DEBUGFS,
139 LOCKDOWN_XMON_WR,
140 LOCKDOWN_BPF_WRITE_USER,
141 LOCKDOWN_DBG_WRITE_KERNEL,
142 LOCKDOWN_RTAS_ERROR_INJECTION,
143 LOCKDOWN_INTEGRITY_MAX,
144 LOCKDOWN_KCORE,
145 LOCKDOWN_KPROBES,
146 LOCKDOWN_BPF_READ_KERNEL,
147 LOCKDOWN_DBG_READ_KERNEL,
148 LOCKDOWN_PERF,
149 LOCKDOWN_TRACEFS,
150 LOCKDOWN_XMON_RW,
151 LOCKDOWN_XFRM_SECRET,
152 LOCKDOWN_CONFIDENTIALITY_MAX,
153};
154
155extern const char *const lockdown_reasons[LOCKDOWN_CONFIDENTIALITY_MAX+1];
156extern u32 lsm_active_cnt;
157extern const struct lsm_id *lsm_idlist[];
158
159/* These functions are in security/commoncap.c */
160extern int cap_capable(const struct cred *cred, struct user_namespace *ns,
161 int cap, unsigned int opts);
162extern int cap_settime(const struct timespec64 *ts, const struct timezone *tz);
163extern int cap_ptrace_access_check(struct task_struct *child, unsigned int mode);
164extern int cap_ptrace_traceme(struct task_struct *parent);
165extern int cap_capget(const struct task_struct *target, kernel_cap_t *effective,
166 kernel_cap_t *inheritable, kernel_cap_t *permitted);
167extern int cap_capset(struct cred *new, const struct cred *old,
168 const kernel_cap_t *effective,
169 const kernel_cap_t *inheritable,
170 const kernel_cap_t *permitted);
171extern int cap_bprm_creds_from_file(struct linux_binprm *bprm, const struct file *file);
172int cap_inode_setxattr(struct dentry *dentry, const char *name,
173 const void *value, size_t size, int flags);
174int cap_inode_removexattr(struct mnt_idmap *idmap,
175 struct dentry *dentry, const char *name);
176int cap_inode_need_killpriv(struct dentry *dentry);
177int cap_inode_killpriv(struct mnt_idmap *idmap, struct dentry *dentry);
178int cap_inode_getsecurity(struct mnt_idmap *idmap,
179 struct inode *inode, const char *name, void **buffer,
180 bool alloc);
181extern int cap_mmap_addr(unsigned long addr);
182extern int cap_mmap_file(struct file *file, unsigned long reqprot,
183 unsigned long prot, unsigned long flags);
184extern int cap_task_fix_setuid(struct cred *new, const struct cred *old, int flags);
185extern int cap_task_prctl(int option, unsigned long arg2, unsigned long arg3,
186 unsigned long arg4, unsigned long arg5);
187extern int cap_task_setscheduler(struct task_struct *p);
188extern int cap_task_setioprio(struct task_struct *p, int ioprio);
189extern int cap_task_setnice(struct task_struct *p, int nice);
190extern int cap_vm_enough_memory(struct mm_struct *mm, long pages);
191
192struct msghdr;
193struct sk_buff;
194struct sock;
195struct sockaddr;
196struct socket;
197struct flowi_common;
198struct dst_entry;
199struct xfrm_selector;
200struct xfrm_policy;
201struct xfrm_state;
202struct xfrm_user_sec_ctx;
203struct seq_file;
204struct sctp_association;
205
206#ifdef CONFIG_MMU
207extern unsigned long mmap_min_addr;
208extern unsigned long dac_mmap_min_addr;
209#else
210#define mmap_min_addr 0UL
211#define dac_mmap_min_addr 0UL
212#endif
213
214/*
215 * Values used in the task_security_ops calls
216 */
217/* setuid or setgid, id0 == uid or gid */
218#define LSM_SETID_ID 1
219
220/* setreuid or setregid, id0 == real, id1 == eff */
221#define LSM_SETID_RE 2
222
223/* setresuid or setresgid, id0 == real, id1 == eff, uid2 == saved */
224#define LSM_SETID_RES 4
225
226/* setfsuid or setfsgid, id0 == fsuid or fsgid */
227#define LSM_SETID_FS 8
228
229/* Flags for security_task_prlimit(). */
230#define LSM_PRLIMIT_READ 1
231#define LSM_PRLIMIT_WRITE 2
232
233/* forward declares to avoid warnings */
234struct sched_param;
235struct request_sock;
236
237/* bprm->unsafe reasons */
238#define LSM_UNSAFE_SHARE 1
239#define LSM_UNSAFE_PTRACE 2
240#define LSM_UNSAFE_NO_NEW_PRIVS 4
241
242#ifdef CONFIG_MMU
243extern int mmap_min_addr_handler(const struct ctl_table *table, int write,
244 void *buffer, size_t *lenp, loff_t *ppos);
245#endif
246
247/* security_inode_init_security callback function to write xattrs */
248typedef int (*initxattrs) (struct inode *inode,
249 const struct xattr *xattr_array, void *fs_data);
250
251
252/* Keep the kernel_load_data_id enum in sync with kernel_read_file_id */
253#define __data_id_enumify(ENUM, dummy) LOADING_ ## ENUM,
254#define __data_id_stringify(dummy, str) #str,
255
256enum kernel_load_data_id {
257 __kernel_read_file_id(__data_id_enumify)
258};
259
260static const char * const kernel_load_data_str[] = {
261 __kernel_read_file_id(__data_id_stringify)
262};
263
264static inline const char *kernel_load_data_id_str(enum kernel_load_data_id id)
265{
266 if ((unsigned)id >= LOADING_MAX_ID)
267 return kernel_load_data_str[LOADING_UNKNOWN];
268
269 return kernel_load_data_str[id];
270}
271
272#ifdef CONFIG_SECURITY
273
274int call_blocking_lsm_notifier(enum lsm_event event, void *data);
275int register_blocking_lsm_notifier(struct notifier_block *nb);
276int unregister_blocking_lsm_notifier(struct notifier_block *nb);
277
278/* prototypes */
279extern int security_init(void);
280extern int early_security_init(void);
281extern u64 lsm_name_to_attr(const char *name);
282
283/* Security operations */
284int security_binder_set_context_mgr(const struct cred *mgr);
285int security_binder_transaction(const struct cred *from,
286 const struct cred *to);
287int security_binder_transfer_binder(const struct cred *from,
288 const struct cred *to);
289int security_binder_transfer_file(const struct cred *from,
290 const struct cred *to, const struct file *file);
291int security_ptrace_access_check(struct task_struct *child, unsigned int mode);
292int security_ptrace_traceme(struct task_struct *parent);
293int security_capget(const struct task_struct *target,
294 kernel_cap_t *effective,
295 kernel_cap_t *inheritable,
296 kernel_cap_t *permitted);
297int security_capset(struct cred *new, const struct cred *old,
298 const kernel_cap_t *effective,
299 const kernel_cap_t *inheritable,
300 const kernel_cap_t *permitted);
301int security_capable(const struct cred *cred,
302 struct user_namespace *ns,
303 int cap,
304 unsigned int opts);
305int security_quotactl(int cmds, int type, int id, const struct super_block *sb);
306int security_quota_on(struct dentry *dentry);
307int security_syslog(int type);
308int security_settime64(const struct timespec64 *ts, const struct timezone *tz);
309int security_vm_enough_memory_mm(struct mm_struct *mm, long pages);
310int security_bprm_creds_for_exec(struct linux_binprm *bprm);
311int security_bprm_creds_from_file(struct linux_binprm *bprm, const struct file *file);
312int security_bprm_check(struct linux_binprm *bprm);
313void security_bprm_committing_creds(const struct linux_binprm *bprm);
314void security_bprm_committed_creds(const struct linux_binprm *bprm);
315int security_fs_context_submount(struct fs_context *fc, struct super_block *reference);
316int security_fs_context_dup(struct fs_context *fc, struct fs_context *src_fc);
317int security_fs_context_parse_param(struct fs_context *fc, struct fs_parameter *param);
318int security_sb_alloc(struct super_block *sb);
319void security_sb_delete(struct super_block *sb);
320void security_sb_free(struct super_block *sb);
321void security_free_mnt_opts(void **mnt_opts);
322int security_sb_eat_lsm_opts(char *options, void **mnt_opts);
323int security_sb_mnt_opts_compat(struct super_block *sb, void *mnt_opts);
324int security_sb_remount(struct super_block *sb, void *mnt_opts);
325int security_sb_kern_mount(const struct super_block *sb);
326int security_sb_show_options(struct seq_file *m, struct super_block *sb);
327int security_sb_statfs(struct dentry *dentry);
328int security_sb_mount(const char *dev_name, const struct path *path,
329 const char *type, unsigned long flags, void *data);
330int security_sb_umount(struct vfsmount *mnt, int flags);
331int security_sb_pivotroot(const struct path *old_path, const struct path *new_path);
332int security_sb_set_mnt_opts(struct super_block *sb,
333 void *mnt_opts,
334 unsigned long kern_flags,
335 unsigned long *set_kern_flags);
336int security_sb_clone_mnt_opts(const struct super_block *oldsb,
337 struct super_block *newsb,
338 unsigned long kern_flags,
339 unsigned long *set_kern_flags);
340int security_move_mount(const struct path *from_path, const struct path *to_path);
341int security_dentry_init_security(struct dentry *dentry, int mode,
342 const struct qstr *name,
343 const char **xattr_name, void **ctx,
344 u32 *ctxlen);
345int security_dentry_create_files_as(struct dentry *dentry, int mode,
346 struct qstr *name,
347 const struct cred *old,
348 struct cred *new);
349int security_path_notify(const struct path *path, u64 mask,
350 unsigned int obj_type);
351int security_inode_alloc(struct inode *inode);
352void security_inode_free(struct inode *inode);
353int security_inode_init_security(struct inode *inode, struct inode *dir,
354 const struct qstr *qstr,
355 initxattrs initxattrs, void *fs_data);
356int security_inode_init_security_anon(struct inode *inode,
357 const struct qstr *name,
358 const struct inode *context_inode);
359int security_inode_create(struct inode *dir, struct dentry *dentry, umode_t mode);
360void security_inode_post_create_tmpfile(struct mnt_idmap *idmap,
361 struct inode *inode);
362int security_inode_link(struct dentry *old_dentry, struct inode *dir,
363 struct dentry *new_dentry);
364int security_inode_unlink(struct inode *dir, struct dentry *dentry);
365int security_inode_symlink(struct inode *dir, struct dentry *dentry,
366 const char *old_name);
367int security_inode_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode);
368int security_inode_rmdir(struct inode *dir, struct dentry *dentry);
369int security_inode_mknod(struct inode *dir, struct dentry *dentry, umode_t mode, dev_t dev);
370int security_inode_rename(struct inode *old_dir, struct dentry *old_dentry,
371 struct inode *new_dir, struct dentry *new_dentry,
372 unsigned int flags);
373int security_inode_readlink(struct dentry *dentry);
374int security_inode_follow_link(struct dentry *dentry, struct inode *inode,
375 bool rcu);
376int security_inode_permission(struct inode *inode, int mask);
377int security_inode_setattr(struct mnt_idmap *idmap,
378 struct dentry *dentry, struct iattr *attr);
379void security_inode_post_setattr(struct mnt_idmap *idmap, struct dentry *dentry,
380 int ia_valid);
381int security_inode_getattr(const struct path *path);
382int security_inode_setxattr(struct mnt_idmap *idmap,
383 struct dentry *dentry, const char *name,
384 const void *value, size_t size, int flags);
385int security_inode_set_acl(struct mnt_idmap *idmap,
386 struct dentry *dentry, const char *acl_name,
387 struct posix_acl *kacl);
388void security_inode_post_set_acl(struct dentry *dentry, const char *acl_name,
389 struct posix_acl *kacl);
390int security_inode_get_acl(struct mnt_idmap *idmap,
391 struct dentry *dentry, const char *acl_name);
392int security_inode_remove_acl(struct mnt_idmap *idmap,
393 struct dentry *dentry, const char *acl_name);
394void security_inode_post_remove_acl(struct mnt_idmap *idmap,
395 struct dentry *dentry,
396 const char *acl_name);
397void security_inode_post_setxattr(struct dentry *dentry, const char *name,
398 const void *value, size_t size, int flags);
399int security_inode_getxattr(struct dentry *dentry, const char *name);
400int security_inode_listxattr(struct dentry *dentry);
401int security_inode_removexattr(struct mnt_idmap *idmap,
402 struct dentry *dentry, const char *name);
403void security_inode_post_removexattr(struct dentry *dentry, const char *name);
404int security_inode_need_killpriv(struct dentry *dentry);
405int security_inode_killpriv(struct mnt_idmap *idmap, struct dentry *dentry);
406int security_inode_getsecurity(struct mnt_idmap *idmap,
407 struct inode *inode, const char *name,
408 void **buffer, bool alloc);
409int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags);
410int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size);
411void security_inode_getsecid(struct inode *inode, u32 *secid);
412int security_inode_copy_up(struct dentry *src, struct cred **new);
413int security_inode_copy_up_xattr(struct dentry *src, const char *name);
414int security_inode_setintegrity(const struct inode *inode,
415 enum lsm_integrity_type type, const void *value,
416 size_t size);
417int security_kernfs_init_security(struct kernfs_node *kn_dir,
418 struct kernfs_node *kn);
419int security_file_permission(struct file *file, int mask);
420int security_file_alloc(struct file *file);
421void security_file_release(struct file *file);
422void security_file_free(struct file *file);
423int security_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg);
424int security_file_ioctl_compat(struct file *file, unsigned int cmd,
425 unsigned long arg);
426int security_mmap_file(struct file *file, unsigned long prot,
427 unsigned long flags);
428int security_mmap_addr(unsigned long addr);
429int security_file_mprotect(struct vm_area_struct *vma, unsigned long reqprot,
430 unsigned long prot);
431int security_file_lock(struct file *file, unsigned int cmd);
432int security_file_fcntl(struct file *file, unsigned int cmd, unsigned long arg);
433void security_file_set_fowner(struct file *file);
434int security_file_send_sigiotask(struct task_struct *tsk,
435 struct fown_struct *fown, int sig);
436int security_file_receive(struct file *file);
437int security_file_open(struct file *file);
438int security_file_post_open(struct file *file, int mask);
439int security_file_truncate(struct file *file);
440int security_task_alloc(struct task_struct *task, unsigned long clone_flags);
441void security_task_free(struct task_struct *task);
442int security_cred_alloc_blank(struct cred *cred, gfp_t gfp);
443void security_cred_free(struct cred *cred);
444int security_prepare_creds(struct cred *new, const struct cred *old, gfp_t gfp);
445void security_transfer_creds(struct cred *new, const struct cred *old);
446void security_cred_getsecid(const struct cred *c, u32 *secid);
447int security_kernel_act_as(struct cred *new, u32 secid);
448int security_kernel_create_files_as(struct cred *new, struct inode *inode);
449int security_kernel_module_request(char *kmod_name);
450int security_kernel_load_data(enum kernel_load_data_id id, bool contents);
451int security_kernel_post_load_data(char *buf, loff_t size,
452 enum kernel_load_data_id id,
453 char *description);
454int security_kernel_read_file(struct file *file, enum kernel_read_file_id id,
455 bool contents);
456int security_kernel_post_read_file(struct file *file, char *buf, loff_t size,
457 enum kernel_read_file_id id);
458int security_task_fix_setuid(struct cred *new, const struct cred *old,
459 int flags);
460int security_task_fix_setgid(struct cred *new, const struct cred *old,
461 int flags);
462int security_task_fix_setgroups(struct cred *new, const struct cred *old);
463int security_task_setpgid(struct task_struct *p, pid_t pgid);
464int security_task_getpgid(struct task_struct *p);
465int security_task_getsid(struct task_struct *p);
466void security_current_getsecid_subj(u32 *secid);
467void security_task_getsecid_obj(struct task_struct *p, u32 *secid);
468int security_task_setnice(struct task_struct *p, int nice);
469int security_task_setioprio(struct task_struct *p, int ioprio);
470int security_task_getioprio(struct task_struct *p);
471int security_task_prlimit(const struct cred *cred, const struct cred *tcred,
472 unsigned int flags);
473int security_task_setrlimit(struct task_struct *p, unsigned int resource,
474 struct rlimit *new_rlim);
475int security_task_setscheduler(struct task_struct *p);
476int security_task_getscheduler(struct task_struct *p);
477int security_task_movememory(struct task_struct *p);
478int security_task_kill(struct task_struct *p, struct kernel_siginfo *info,
479 int sig, const struct cred *cred);
480int security_task_prctl(int option, unsigned long arg2, unsigned long arg3,
481 unsigned long arg4, unsigned long arg5);
482void security_task_to_inode(struct task_struct *p, struct inode *inode);
483int security_create_user_ns(const struct cred *cred);
484int security_ipc_permission(struct kern_ipc_perm *ipcp, short flag);
485void security_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid);
486int security_msg_msg_alloc(struct msg_msg *msg);
487void security_msg_msg_free(struct msg_msg *msg);
488int security_msg_queue_alloc(struct kern_ipc_perm *msq);
489void security_msg_queue_free(struct kern_ipc_perm *msq);
490int security_msg_queue_associate(struct kern_ipc_perm *msq, int msqflg);
491int security_msg_queue_msgctl(struct kern_ipc_perm *msq, int cmd);
492int security_msg_queue_msgsnd(struct kern_ipc_perm *msq,
493 struct msg_msg *msg, int msqflg);
494int security_msg_queue_msgrcv(struct kern_ipc_perm *msq, struct msg_msg *msg,
495 struct task_struct *target, long type, int mode);
496int security_shm_alloc(struct kern_ipc_perm *shp);
497void security_shm_free(struct kern_ipc_perm *shp);
498int security_shm_associate(struct kern_ipc_perm *shp, int shmflg);
499int security_shm_shmctl(struct kern_ipc_perm *shp, int cmd);
500int security_shm_shmat(struct kern_ipc_perm *shp, char __user *shmaddr, int shmflg);
501int security_sem_alloc(struct kern_ipc_perm *sma);
502void security_sem_free(struct kern_ipc_perm *sma);
503int security_sem_associate(struct kern_ipc_perm *sma, int semflg);
504int security_sem_semctl(struct kern_ipc_perm *sma, int cmd);
505int security_sem_semop(struct kern_ipc_perm *sma, struct sembuf *sops,
506 unsigned nsops, int alter);
507void security_d_instantiate(struct dentry *dentry, struct inode *inode);
508int security_getselfattr(unsigned int attr, struct lsm_ctx __user *ctx,
509 u32 __user *size, u32 flags);
510int security_setselfattr(unsigned int attr, struct lsm_ctx __user *ctx,
511 u32 size, u32 flags);
512int security_getprocattr(struct task_struct *p, int lsmid, const char *name,
513 char **value);
514int security_setprocattr(int lsmid, const char *name, void *value, size_t size);
515int security_netlink_send(struct sock *sk, struct sk_buff *skb);
516int security_ismaclabel(const char *name);
517int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen);
518int security_secctx_to_secid(const char *secdata, u32 seclen, u32 *secid);
519void security_release_secctx(char *secdata, u32 seclen);
520void security_inode_invalidate_secctx(struct inode *inode);
521int security_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen);
522int security_inode_setsecctx(struct dentry *dentry, void *ctx, u32 ctxlen);
523int security_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen);
524int security_locked_down(enum lockdown_reason what);
525int lsm_fill_user_ctx(struct lsm_ctx __user *uctx, u32 *uctx_len,
526 void *val, size_t val_len, u64 id, u64 flags);
527int security_bdev_alloc(struct block_device *bdev);
528void security_bdev_free(struct block_device *bdev);
529int security_bdev_setintegrity(struct block_device *bdev,
530 enum lsm_integrity_type type, const void *value,
531 size_t size);
532#else /* CONFIG_SECURITY */
533
534static inline int call_blocking_lsm_notifier(enum lsm_event event, void *data)
535{
536 return 0;
537}
538
539static inline int register_blocking_lsm_notifier(struct notifier_block *nb)
540{
541 return 0;
542}
543
544static inline int unregister_blocking_lsm_notifier(struct notifier_block *nb)
545{
546 return 0;
547}
548
549static inline u64 lsm_name_to_attr(const char *name)
550{
551 return LSM_ATTR_UNDEF;
552}
553
554static inline void security_free_mnt_opts(void **mnt_opts)
555{
556}
557
558/*
559 * This is the default capabilities functionality. Most of these functions
560 * are just stubbed out, but a few must call the proper capable code.
561 */
562
563static inline int security_init(void)
564{
565 return 0;
566}
567
568static inline int early_security_init(void)
569{
570 return 0;
571}
572
573static inline int security_binder_set_context_mgr(const struct cred *mgr)
574{
575 return 0;
576}
577
578static inline int security_binder_transaction(const struct cred *from,
579 const struct cred *to)
580{
581 return 0;
582}
583
584static inline int security_binder_transfer_binder(const struct cred *from,
585 const struct cred *to)
586{
587 return 0;
588}
589
590static inline int security_binder_transfer_file(const struct cred *from,
591 const struct cred *to,
592 const struct file *file)
593{
594 return 0;
595}
596
597static inline int security_ptrace_access_check(struct task_struct *child,
598 unsigned int mode)
599{
600 return cap_ptrace_access_check(child, mode);
601}
602
603static inline int security_ptrace_traceme(struct task_struct *parent)
604{
605 return cap_ptrace_traceme(parent);
606}
607
608static inline int security_capget(const struct task_struct *target,
609 kernel_cap_t *effective,
610 kernel_cap_t *inheritable,
611 kernel_cap_t *permitted)
612{
613 return cap_capget(target, effective, inheritable, permitted);
614}
615
616static inline int security_capset(struct cred *new,
617 const struct cred *old,
618 const kernel_cap_t *effective,
619 const kernel_cap_t *inheritable,
620 const kernel_cap_t *permitted)
621{
622 return cap_capset(new, old, effective, inheritable, permitted);
623}
624
625static inline int security_capable(const struct cred *cred,
626 struct user_namespace *ns,
627 int cap,
628 unsigned int opts)
629{
630 return cap_capable(cred, ns, cap, opts);
631}
632
633static inline int security_quotactl(int cmds, int type, int id,
634 const struct super_block *sb)
635{
636 return 0;
637}
638
639static inline int security_quota_on(struct dentry *dentry)
640{
641 return 0;
642}
643
644static inline int security_syslog(int type)
645{
646 return 0;
647}
648
649static inline int security_settime64(const struct timespec64 *ts,
650 const struct timezone *tz)
651{
652 return cap_settime(ts, tz);
653}
654
655static inline int security_vm_enough_memory_mm(struct mm_struct *mm, long pages)
656{
657 return __vm_enough_memory(mm, pages, !cap_vm_enough_memory(mm, pages));
658}
659
660static inline int security_bprm_creds_for_exec(struct linux_binprm *bprm)
661{
662 return 0;
663}
664
665static inline int security_bprm_creds_from_file(struct linux_binprm *bprm,
666 const struct file *file)
667{
668 return cap_bprm_creds_from_file(bprm, file);
669}
670
671static inline int security_bprm_check(struct linux_binprm *bprm)
672{
673 return 0;
674}
675
676static inline void security_bprm_committing_creds(const struct linux_binprm *bprm)
677{
678}
679
680static inline void security_bprm_committed_creds(const struct linux_binprm *bprm)
681{
682}
683
684static inline int security_fs_context_submount(struct fs_context *fc,
685 struct super_block *reference)
686{
687 return 0;
688}
689static inline int security_fs_context_dup(struct fs_context *fc,
690 struct fs_context *src_fc)
691{
692 return 0;
693}
694static inline int security_fs_context_parse_param(struct fs_context *fc,
695 struct fs_parameter *param)
696{
697 return -ENOPARAM;
698}
699
700static inline int security_sb_alloc(struct super_block *sb)
701{
702 return 0;
703}
704
705static inline void security_sb_delete(struct super_block *sb)
706{ }
707
708static inline void security_sb_free(struct super_block *sb)
709{ }
710
711static inline int security_sb_eat_lsm_opts(char *options,
712 void **mnt_opts)
713{
714 return 0;
715}
716
717static inline int security_sb_remount(struct super_block *sb,
718 void *mnt_opts)
719{
720 return 0;
721}
722
723static inline int security_sb_mnt_opts_compat(struct super_block *sb,
724 void *mnt_opts)
725{
726 return 0;
727}
728
729
730static inline int security_sb_kern_mount(struct super_block *sb)
731{
732 return 0;
733}
734
735static inline int security_sb_show_options(struct seq_file *m,
736 struct super_block *sb)
737{
738 return 0;
739}
740
741static inline int security_sb_statfs(struct dentry *dentry)
742{
743 return 0;
744}
745
746static inline int security_sb_mount(const char *dev_name, const struct path *path,
747 const char *type, unsigned long flags,
748 void *data)
749{
750 return 0;
751}
752
753static inline int security_sb_umount(struct vfsmount *mnt, int flags)
754{
755 return 0;
756}
757
758static inline int security_sb_pivotroot(const struct path *old_path,
759 const struct path *new_path)
760{
761 return 0;
762}
763
764static inline int security_sb_set_mnt_opts(struct super_block *sb,
765 void *mnt_opts,
766 unsigned long kern_flags,
767 unsigned long *set_kern_flags)
768{
769 return 0;
770}
771
772static inline int security_sb_clone_mnt_opts(const struct super_block *oldsb,
773 struct super_block *newsb,
774 unsigned long kern_flags,
775 unsigned long *set_kern_flags)
776{
777 return 0;
778}
779
780static inline int security_move_mount(const struct path *from_path,
781 const struct path *to_path)
782{
783 return 0;
784}
785
786static inline int security_path_notify(const struct path *path, u64 mask,
787 unsigned int obj_type)
788{
789 return 0;
790}
791
792static inline int security_inode_alloc(struct inode *inode)
793{
794 return 0;
795}
796
797static inline void security_inode_free(struct inode *inode)
798{ }
799
800static inline int security_dentry_init_security(struct dentry *dentry,
801 int mode,
802 const struct qstr *name,
803 const char **xattr_name,
804 void **ctx,
805 u32 *ctxlen)
806{
807 return -EOPNOTSUPP;
808}
809
810static inline int security_dentry_create_files_as(struct dentry *dentry,
811 int mode, struct qstr *name,
812 const struct cred *old,
813 struct cred *new)
814{
815 return 0;
816}
817
818
819static inline int security_inode_init_security(struct inode *inode,
820 struct inode *dir,
821 const struct qstr *qstr,
822 const initxattrs xattrs,
823 void *fs_data)
824{
825 return 0;
826}
827
828static inline int security_inode_init_security_anon(struct inode *inode,
829 const struct qstr *name,
830 const struct inode *context_inode)
831{
832 return 0;
833}
834
835static inline int security_inode_create(struct inode *dir,
836 struct dentry *dentry,
837 umode_t mode)
838{
839 return 0;
840}
841
842static inline void
843security_inode_post_create_tmpfile(struct mnt_idmap *idmap, struct inode *inode)
844{ }
845
846static inline int security_inode_link(struct dentry *old_dentry,
847 struct inode *dir,
848 struct dentry *new_dentry)
849{
850 return 0;
851}
852
853static inline int security_inode_unlink(struct inode *dir,
854 struct dentry *dentry)
855{
856 return 0;
857}
858
859static inline int security_inode_symlink(struct inode *dir,
860 struct dentry *dentry,
861 const char *old_name)
862{
863 return 0;
864}
865
866static inline int security_inode_mkdir(struct inode *dir,
867 struct dentry *dentry,
868 int mode)
869{
870 return 0;
871}
872
873static inline int security_inode_rmdir(struct inode *dir,
874 struct dentry *dentry)
875{
876 return 0;
877}
878
879static inline int security_inode_mknod(struct inode *dir,
880 struct dentry *dentry,
881 int mode, dev_t dev)
882{
883 return 0;
884}
885
886static inline int security_inode_rename(struct inode *old_dir,
887 struct dentry *old_dentry,
888 struct inode *new_dir,
889 struct dentry *new_dentry,
890 unsigned int flags)
891{
892 return 0;
893}
894
895static inline int security_inode_readlink(struct dentry *dentry)
896{
897 return 0;
898}
899
900static inline int security_inode_follow_link(struct dentry *dentry,
901 struct inode *inode,
902 bool rcu)
903{
904 return 0;
905}
906
907static inline int security_inode_permission(struct inode *inode, int mask)
908{
909 return 0;
910}
911
912static inline int security_inode_setattr(struct mnt_idmap *idmap,
913 struct dentry *dentry,
914 struct iattr *attr)
915{
916 return 0;
917}
918
919static inline void
920security_inode_post_setattr(struct mnt_idmap *idmap, struct dentry *dentry,
921 int ia_valid)
922{ }
923
924static inline int security_inode_getattr(const struct path *path)
925{
926 return 0;
927}
928
929static inline int security_inode_setxattr(struct mnt_idmap *idmap,
930 struct dentry *dentry, const char *name, const void *value,
931 size_t size, int flags)
932{
933 return cap_inode_setxattr(dentry, name, value, size, flags);
934}
935
936static inline int security_inode_set_acl(struct mnt_idmap *idmap,
937 struct dentry *dentry,
938 const char *acl_name,
939 struct posix_acl *kacl)
940{
941 return 0;
942}
943
944static inline void security_inode_post_set_acl(struct dentry *dentry,
945 const char *acl_name,
946 struct posix_acl *kacl)
947{ }
948
949static inline int security_inode_get_acl(struct mnt_idmap *idmap,
950 struct dentry *dentry,
951 const char *acl_name)
952{
953 return 0;
954}
955
956static inline int security_inode_remove_acl(struct mnt_idmap *idmap,
957 struct dentry *dentry,
958 const char *acl_name)
959{
960 return 0;
961}
962
963static inline void security_inode_post_remove_acl(struct mnt_idmap *idmap,
964 struct dentry *dentry,
965 const char *acl_name)
966{ }
967
968static inline void security_inode_post_setxattr(struct dentry *dentry,
969 const char *name, const void *value, size_t size, int flags)
970{ }
971
972static inline int security_inode_getxattr(struct dentry *dentry,
973 const char *name)
974{
975 return 0;
976}
977
978static inline int security_inode_listxattr(struct dentry *dentry)
979{
980 return 0;
981}
982
983static inline int security_inode_removexattr(struct mnt_idmap *idmap,
984 struct dentry *dentry,
985 const char *name)
986{
987 return cap_inode_removexattr(idmap, dentry, name);
988}
989
990static inline void security_inode_post_removexattr(struct dentry *dentry,
991 const char *name)
992{ }
993
994static inline int security_inode_need_killpriv(struct dentry *dentry)
995{
996 return cap_inode_need_killpriv(dentry);
997}
998
999static inline int security_inode_killpriv(struct mnt_idmap *idmap,
1000 struct dentry *dentry)
1001{
1002 return cap_inode_killpriv(idmap, dentry);
1003}
1004
1005static inline int security_inode_getsecurity(struct mnt_idmap *idmap,
1006 struct inode *inode,
1007 const char *name, void **buffer,
1008 bool alloc)
1009{
1010 return cap_inode_getsecurity(idmap, inode, name, buffer, alloc);
1011}
1012
1013static inline int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags)
1014{
1015 return -EOPNOTSUPP;
1016}
1017
1018static inline int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size)
1019{
1020 return 0;
1021}
1022
1023static inline void security_inode_getsecid(struct inode *inode, u32 *secid)
1024{
1025 *secid = 0;
1026}
1027
1028static inline int security_inode_copy_up(struct dentry *src, struct cred **new)
1029{
1030 return 0;
1031}
1032
1033static inline int security_inode_setintegrity(const struct inode *inode,
1034 enum lsm_integrity_type type,
1035 const void *value, size_t size)
1036{
1037 return 0;
1038}
1039
1040static inline int security_kernfs_init_security(struct kernfs_node *kn_dir,
1041 struct kernfs_node *kn)
1042{
1043 return 0;
1044}
1045
1046static inline int security_inode_copy_up_xattr(struct dentry *src, const char *name)
1047{
1048 return -EOPNOTSUPP;
1049}
1050
1051static inline int security_file_permission(struct file *file, int mask)
1052{
1053 return 0;
1054}
1055
1056static inline int security_file_alloc(struct file *file)
1057{
1058 return 0;
1059}
1060
1061static inline void security_file_release(struct file *file)
1062{ }
1063
1064static inline void security_file_free(struct file *file)
1065{ }
1066
1067static inline int security_file_ioctl(struct file *file, unsigned int cmd,
1068 unsigned long arg)
1069{
1070 return 0;
1071}
1072
1073static inline int security_file_ioctl_compat(struct file *file,
1074 unsigned int cmd,
1075 unsigned long arg)
1076{
1077 return 0;
1078}
1079
1080static inline int security_mmap_file(struct file *file, unsigned long prot,
1081 unsigned long flags)
1082{
1083 return 0;
1084}
1085
1086static inline int security_mmap_addr(unsigned long addr)
1087{
1088 return cap_mmap_addr(addr);
1089}
1090
1091static inline int security_file_mprotect(struct vm_area_struct *vma,
1092 unsigned long reqprot,
1093 unsigned long prot)
1094{
1095 return 0;
1096}
1097
1098static inline int security_file_lock(struct file *file, unsigned int cmd)
1099{
1100 return 0;
1101}
1102
1103static inline int security_file_fcntl(struct file *file, unsigned int cmd,
1104 unsigned long arg)
1105{
1106 return 0;
1107}
1108
1109static inline void security_file_set_fowner(struct file *file)
1110{
1111 return;
1112}
1113
1114static inline int security_file_send_sigiotask(struct task_struct *tsk,
1115 struct fown_struct *fown,
1116 int sig)
1117{
1118 return 0;
1119}
1120
1121static inline int security_file_receive(struct file *file)
1122{
1123 return 0;
1124}
1125
1126static inline int security_file_open(struct file *file)
1127{
1128 return 0;
1129}
1130
1131static inline int security_file_post_open(struct file *file, int mask)
1132{
1133 return 0;
1134}
1135
1136static inline int security_file_truncate(struct file *file)
1137{
1138 return 0;
1139}
1140
1141static inline int security_task_alloc(struct task_struct *task,
1142 unsigned long clone_flags)
1143{
1144 return 0;
1145}
1146
1147static inline void security_task_free(struct task_struct *task)
1148{ }
1149
1150static inline int security_cred_alloc_blank(struct cred *cred, gfp_t gfp)
1151{
1152 return 0;
1153}
1154
1155static inline void security_cred_free(struct cred *cred)
1156{ }
1157
1158static inline int security_prepare_creds(struct cred *new,
1159 const struct cred *old,
1160 gfp_t gfp)
1161{
1162 return 0;
1163}
1164
1165static inline void security_transfer_creds(struct cred *new,
1166 const struct cred *old)
1167{
1168}
1169
1170static inline void security_cred_getsecid(const struct cred *c, u32 *secid)
1171{
1172 *secid = 0;
1173}
1174
1175static inline int security_kernel_act_as(struct cred *cred, u32 secid)
1176{
1177 return 0;
1178}
1179
1180static inline int security_kernel_create_files_as(struct cred *cred,
1181 struct inode *inode)
1182{
1183 return 0;
1184}
1185
1186static inline int security_kernel_module_request(char *kmod_name)
1187{
1188 return 0;
1189}
1190
1191static inline int security_kernel_load_data(enum kernel_load_data_id id, bool contents)
1192{
1193 return 0;
1194}
1195
1196static inline int security_kernel_post_load_data(char *buf, loff_t size,
1197 enum kernel_load_data_id id,
1198 char *description)
1199{
1200 return 0;
1201}
1202
1203static inline int security_kernel_read_file(struct file *file,
1204 enum kernel_read_file_id id,
1205 bool contents)
1206{
1207 return 0;
1208}
1209
1210static inline int security_kernel_post_read_file(struct file *file,
1211 char *buf, loff_t size,
1212 enum kernel_read_file_id id)
1213{
1214 return 0;
1215}
1216
1217static inline int security_task_fix_setuid(struct cred *new,
1218 const struct cred *old,
1219 int flags)
1220{
1221 return cap_task_fix_setuid(new, old, flags);
1222}
1223
1224static inline int security_task_fix_setgid(struct cred *new,
1225 const struct cred *old,
1226 int flags)
1227{
1228 return 0;
1229}
1230
1231static inline int security_task_fix_setgroups(struct cred *new,
1232 const struct cred *old)
1233{
1234 return 0;
1235}
1236
1237static inline int security_task_setpgid(struct task_struct *p, pid_t pgid)
1238{
1239 return 0;
1240}
1241
1242static inline int security_task_getpgid(struct task_struct *p)
1243{
1244 return 0;
1245}
1246
1247static inline int security_task_getsid(struct task_struct *p)
1248{
1249 return 0;
1250}
1251
1252static inline void security_current_getsecid_subj(u32 *secid)
1253{
1254 *secid = 0;
1255}
1256
1257static inline void security_task_getsecid_obj(struct task_struct *p, u32 *secid)
1258{
1259 *secid = 0;
1260}
1261
1262static inline int security_task_setnice(struct task_struct *p, int nice)
1263{
1264 return cap_task_setnice(p, nice);
1265}
1266
1267static inline int security_task_setioprio(struct task_struct *p, int ioprio)
1268{
1269 return cap_task_setioprio(p, ioprio);
1270}
1271
1272static inline int security_task_getioprio(struct task_struct *p)
1273{
1274 return 0;
1275}
1276
1277static inline int security_task_prlimit(const struct cred *cred,
1278 const struct cred *tcred,
1279 unsigned int flags)
1280{
1281 return 0;
1282}
1283
1284static inline int security_task_setrlimit(struct task_struct *p,
1285 unsigned int resource,
1286 struct rlimit *new_rlim)
1287{
1288 return 0;
1289}
1290
1291static inline int security_task_setscheduler(struct task_struct *p)
1292{
1293 return cap_task_setscheduler(p);
1294}
1295
1296static inline int security_task_getscheduler(struct task_struct *p)
1297{
1298 return 0;
1299}
1300
1301static inline int security_task_movememory(struct task_struct *p)
1302{
1303 return 0;
1304}
1305
1306static inline int security_task_kill(struct task_struct *p,
1307 struct kernel_siginfo *info, int sig,
1308 const struct cred *cred)
1309{
1310 return 0;
1311}
1312
1313static inline int security_task_prctl(int option, unsigned long arg2,
1314 unsigned long arg3,
1315 unsigned long arg4,
1316 unsigned long arg5)
1317{
1318 return cap_task_prctl(option, arg2, arg3, arg4, arg5);
1319}
1320
1321static inline void security_task_to_inode(struct task_struct *p, struct inode *inode)
1322{ }
1323
1324static inline int security_create_user_ns(const struct cred *cred)
1325{
1326 return 0;
1327}
1328
1329static inline int security_ipc_permission(struct kern_ipc_perm *ipcp,
1330 short flag)
1331{
1332 return 0;
1333}
1334
1335static inline void security_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid)
1336{
1337 *secid = 0;
1338}
1339
1340static inline int security_msg_msg_alloc(struct msg_msg *msg)
1341{
1342 return 0;
1343}
1344
1345static inline void security_msg_msg_free(struct msg_msg *msg)
1346{ }
1347
1348static inline int security_msg_queue_alloc(struct kern_ipc_perm *msq)
1349{
1350 return 0;
1351}
1352
1353static inline void security_msg_queue_free(struct kern_ipc_perm *msq)
1354{ }
1355
1356static inline int security_msg_queue_associate(struct kern_ipc_perm *msq,
1357 int msqflg)
1358{
1359 return 0;
1360}
1361
1362static inline int security_msg_queue_msgctl(struct kern_ipc_perm *msq, int cmd)
1363{
1364 return 0;
1365}
1366
1367static inline int security_msg_queue_msgsnd(struct kern_ipc_perm *msq,
1368 struct msg_msg *msg, int msqflg)
1369{
1370 return 0;
1371}
1372
1373static inline int security_msg_queue_msgrcv(struct kern_ipc_perm *msq,
1374 struct msg_msg *msg,
1375 struct task_struct *target,
1376 long type, int mode)
1377{
1378 return 0;
1379}
1380
1381static inline int security_shm_alloc(struct kern_ipc_perm *shp)
1382{
1383 return 0;
1384}
1385
1386static inline void security_shm_free(struct kern_ipc_perm *shp)
1387{ }
1388
1389static inline int security_shm_associate(struct kern_ipc_perm *shp,
1390 int shmflg)
1391{
1392 return 0;
1393}
1394
1395static inline int security_shm_shmctl(struct kern_ipc_perm *shp, int cmd)
1396{
1397 return 0;
1398}
1399
1400static inline int security_shm_shmat(struct kern_ipc_perm *shp,
1401 char __user *shmaddr, int shmflg)
1402{
1403 return 0;
1404}
1405
1406static inline int security_sem_alloc(struct kern_ipc_perm *sma)
1407{
1408 return 0;
1409}
1410
1411static inline void security_sem_free(struct kern_ipc_perm *sma)
1412{ }
1413
1414static inline int security_sem_associate(struct kern_ipc_perm *sma, int semflg)
1415{
1416 return 0;
1417}
1418
1419static inline int security_sem_semctl(struct kern_ipc_perm *sma, int cmd)
1420{
1421 return 0;
1422}
1423
1424static inline int security_sem_semop(struct kern_ipc_perm *sma,
1425 struct sembuf *sops, unsigned nsops,
1426 int alter)
1427{
1428 return 0;
1429}
1430
1431static inline void security_d_instantiate(struct dentry *dentry,
1432 struct inode *inode)
1433{ }
1434
1435static inline int security_getselfattr(unsigned int attr,
1436 struct lsm_ctx __user *ctx,
1437 size_t __user *size, u32 flags)
1438{
1439 return -EOPNOTSUPP;
1440}
1441
1442static inline int security_setselfattr(unsigned int attr,
1443 struct lsm_ctx __user *ctx,
1444 size_t size, u32 flags)
1445{
1446 return -EOPNOTSUPP;
1447}
1448
1449static inline int security_getprocattr(struct task_struct *p, int lsmid,
1450 const char *name, char **value)
1451{
1452 return -EINVAL;
1453}
1454
1455static inline int security_setprocattr(int lsmid, char *name, void *value,
1456 size_t size)
1457{
1458 return -EINVAL;
1459}
1460
1461static inline int security_netlink_send(struct sock *sk, struct sk_buff *skb)
1462{
1463 return 0;
1464}
1465
1466static inline int security_ismaclabel(const char *name)
1467{
1468 return 0;
1469}
1470
1471static inline int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen)
1472{
1473 return -EOPNOTSUPP;
1474}
1475
1476static inline int security_secctx_to_secid(const char *secdata,
1477 u32 seclen,
1478 u32 *secid)
1479{
1480 return -EOPNOTSUPP;
1481}
1482
1483static inline void security_release_secctx(char *secdata, u32 seclen)
1484{
1485}
1486
1487static inline void security_inode_invalidate_secctx(struct inode *inode)
1488{
1489}
1490
1491static inline int security_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen)
1492{
1493 return -EOPNOTSUPP;
1494}
1495static inline int security_inode_setsecctx(struct dentry *dentry, void *ctx, u32 ctxlen)
1496{
1497 return -EOPNOTSUPP;
1498}
1499static inline int security_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen)
1500{
1501 return -EOPNOTSUPP;
1502}
1503static inline int security_locked_down(enum lockdown_reason what)
1504{
1505 return 0;
1506}
1507static inline int lsm_fill_user_ctx(struct lsm_ctx __user *uctx,
1508 u32 *uctx_len, void *val, size_t val_len,
1509 u64 id, u64 flags)
1510{
1511 return -EOPNOTSUPP;
1512}
1513
1514static inline int security_bdev_alloc(struct block_device *bdev)
1515{
1516 return 0;
1517}
1518
1519static inline void security_bdev_free(struct block_device *bdev)
1520{
1521}
1522
1523static inline int security_bdev_setintegrity(struct block_device *bdev,
1524 enum lsm_integrity_type type,
1525 const void *value, size_t size)
1526{
1527 return 0;
1528}
1529
1530#endif /* CONFIG_SECURITY */
1531
1532#if defined(CONFIG_SECURITY) && defined(CONFIG_WATCH_QUEUE)
1533int security_post_notification(const struct cred *w_cred,
1534 const struct cred *cred,
1535 struct watch_notification *n);
1536#else
1537static inline int security_post_notification(const struct cred *w_cred,
1538 const struct cred *cred,
1539 struct watch_notification *n)
1540{
1541 return 0;
1542}
1543#endif
1544
1545#if defined(CONFIG_SECURITY) && defined(CONFIG_KEY_NOTIFICATIONS)
1546int security_watch_key(struct key *key);
1547#else
1548static inline int security_watch_key(struct key *key)
1549{
1550 return 0;
1551}
1552#endif
1553
1554#ifdef CONFIG_SECURITY_NETWORK
1555
1556int security_unix_stream_connect(struct sock *sock, struct sock *other, struct sock *newsk);
1557int security_unix_may_send(struct socket *sock, struct socket *other);
1558int security_socket_create(int family, int type, int protocol, int kern);
1559int security_socket_post_create(struct socket *sock, int family,
1560 int type, int protocol, int kern);
1561int security_socket_socketpair(struct socket *socka, struct socket *sockb);
1562int security_socket_bind(struct socket *sock, struct sockaddr *address, int addrlen);
1563int security_socket_connect(struct socket *sock, struct sockaddr *address, int addrlen);
1564int security_socket_listen(struct socket *sock, int backlog);
1565int security_socket_accept(struct socket *sock, struct socket *newsock);
1566int security_socket_sendmsg(struct socket *sock, struct msghdr *msg, int size);
1567int security_socket_recvmsg(struct socket *sock, struct msghdr *msg,
1568 int size, int flags);
1569int security_socket_getsockname(struct socket *sock);
1570int security_socket_getpeername(struct socket *sock);
1571int security_socket_getsockopt(struct socket *sock, int level, int optname);
1572int security_socket_setsockopt(struct socket *sock, int level, int optname);
1573int security_socket_shutdown(struct socket *sock, int how);
1574int security_sock_rcv_skb(struct sock *sk, struct sk_buff *skb);
1575int security_socket_getpeersec_stream(struct socket *sock, sockptr_t optval,
1576 sockptr_t optlen, unsigned int len);
1577int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid);
1578int security_sk_alloc(struct sock *sk, int family, gfp_t priority);
1579void security_sk_free(struct sock *sk);
1580void security_sk_clone(const struct sock *sk, struct sock *newsk);
1581void security_sk_classify_flow(const struct sock *sk,
1582 struct flowi_common *flic);
1583void security_req_classify_flow(const struct request_sock *req,
1584 struct flowi_common *flic);
1585void security_sock_graft(struct sock*sk, struct socket *parent);
1586int security_inet_conn_request(const struct sock *sk,
1587 struct sk_buff *skb, struct request_sock *req);
1588void security_inet_csk_clone(struct sock *newsk,
1589 const struct request_sock *req);
1590void security_inet_conn_established(struct sock *sk,
1591 struct sk_buff *skb);
1592int security_secmark_relabel_packet(u32 secid);
1593void security_secmark_refcount_inc(void);
1594void security_secmark_refcount_dec(void);
1595int security_tun_dev_alloc_security(void **security);
1596void security_tun_dev_free_security(void *security);
1597int security_tun_dev_create(void);
1598int security_tun_dev_attach_queue(void *security);
1599int security_tun_dev_attach(struct sock *sk, void *security);
1600int security_tun_dev_open(void *security);
1601int security_sctp_assoc_request(struct sctp_association *asoc, struct sk_buff *skb);
1602int security_sctp_bind_connect(struct sock *sk, int optname,
1603 struct sockaddr *address, int addrlen);
1604void security_sctp_sk_clone(struct sctp_association *asoc, struct sock *sk,
1605 struct sock *newsk);
1606int security_sctp_assoc_established(struct sctp_association *asoc,
1607 struct sk_buff *skb);
1608int security_mptcp_add_subflow(struct sock *sk, struct sock *ssk);
1609
1610#else /* CONFIG_SECURITY_NETWORK */
1611static inline int security_unix_stream_connect(struct sock *sock,
1612 struct sock *other,
1613 struct sock *newsk)
1614{
1615 return 0;
1616}
1617
1618static inline int security_unix_may_send(struct socket *sock,
1619 struct socket *other)
1620{
1621 return 0;
1622}
1623
1624static inline int security_socket_create(int family, int type,
1625 int protocol, int kern)
1626{
1627 return 0;
1628}
1629
1630static inline int security_socket_post_create(struct socket *sock,
1631 int family,
1632 int type,
1633 int protocol, int kern)
1634{
1635 return 0;
1636}
1637
1638static inline int security_socket_socketpair(struct socket *socka,
1639 struct socket *sockb)
1640{
1641 return 0;
1642}
1643
1644static inline int security_socket_bind(struct socket *sock,
1645 struct sockaddr *address,
1646 int addrlen)
1647{
1648 return 0;
1649}
1650
1651static inline int security_socket_connect(struct socket *sock,
1652 struct sockaddr *address,
1653 int addrlen)
1654{
1655 return 0;
1656}
1657
1658static inline int security_socket_listen(struct socket *sock, int backlog)
1659{
1660 return 0;
1661}
1662
1663static inline int security_socket_accept(struct socket *sock,
1664 struct socket *newsock)
1665{
1666 return 0;
1667}
1668
1669static inline int security_socket_sendmsg(struct socket *sock,
1670 struct msghdr *msg, int size)
1671{
1672 return 0;
1673}
1674
1675static inline int security_socket_recvmsg(struct socket *sock,
1676 struct msghdr *msg, int size,
1677 int flags)
1678{
1679 return 0;
1680}
1681
1682static inline int security_socket_getsockname(struct socket *sock)
1683{
1684 return 0;
1685}
1686
1687static inline int security_socket_getpeername(struct socket *sock)
1688{
1689 return 0;
1690}
1691
1692static inline int security_socket_getsockopt(struct socket *sock,
1693 int level, int optname)
1694{
1695 return 0;
1696}
1697
1698static inline int security_socket_setsockopt(struct socket *sock,
1699 int level, int optname)
1700{
1701 return 0;
1702}
1703
1704static inline int security_socket_shutdown(struct socket *sock, int how)
1705{
1706 return 0;
1707}
1708static inline int security_sock_rcv_skb(struct sock *sk,
1709 struct sk_buff *skb)
1710{
1711 return 0;
1712}
1713
1714static inline int security_socket_getpeersec_stream(struct socket *sock,
1715 sockptr_t optval,
1716 sockptr_t optlen,
1717 unsigned int len)
1718{
1719 return -ENOPROTOOPT;
1720}
1721
1722static inline int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid)
1723{
1724 return -ENOPROTOOPT;
1725}
1726
1727static inline int security_sk_alloc(struct sock *sk, int family, gfp_t priority)
1728{
1729 return 0;
1730}
1731
1732static inline void security_sk_free(struct sock *sk)
1733{
1734}
1735
1736static inline void security_sk_clone(const struct sock *sk, struct sock *newsk)
1737{
1738}
1739
1740static inline void security_sk_classify_flow(const struct sock *sk,
1741 struct flowi_common *flic)
1742{
1743}
1744
1745static inline void security_req_classify_flow(const struct request_sock *req,
1746 struct flowi_common *flic)
1747{
1748}
1749
1750static inline void security_sock_graft(struct sock *sk, struct socket *parent)
1751{
1752}
1753
1754static inline int security_inet_conn_request(const struct sock *sk,
1755 struct sk_buff *skb, struct request_sock *req)
1756{
1757 return 0;
1758}
1759
1760static inline void security_inet_csk_clone(struct sock *newsk,
1761 const struct request_sock *req)
1762{
1763}
1764
1765static inline void security_inet_conn_established(struct sock *sk,
1766 struct sk_buff *skb)
1767{
1768}
1769
1770static inline int security_secmark_relabel_packet(u32 secid)
1771{
1772 return 0;
1773}
1774
1775static inline void security_secmark_refcount_inc(void)
1776{
1777}
1778
1779static inline void security_secmark_refcount_dec(void)
1780{
1781}
1782
1783static inline int security_tun_dev_alloc_security(void **security)
1784{
1785 return 0;
1786}
1787
1788static inline void security_tun_dev_free_security(void *security)
1789{
1790}
1791
1792static inline int security_tun_dev_create(void)
1793{
1794 return 0;
1795}
1796
1797static inline int security_tun_dev_attach_queue(void *security)
1798{
1799 return 0;
1800}
1801
1802static inline int security_tun_dev_attach(struct sock *sk, void *security)
1803{
1804 return 0;
1805}
1806
1807static inline int security_tun_dev_open(void *security)
1808{
1809 return 0;
1810}
1811
1812static inline int security_sctp_assoc_request(struct sctp_association *asoc,
1813 struct sk_buff *skb)
1814{
1815 return 0;
1816}
1817
1818static inline int security_sctp_bind_connect(struct sock *sk, int optname,
1819 struct sockaddr *address,
1820 int addrlen)
1821{
1822 return 0;
1823}
1824
1825static inline void security_sctp_sk_clone(struct sctp_association *asoc,
1826 struct sock *sk,
1827 struct sock *newsk)
1828{
1829}
1830
1831static inline int security_sctp_assoc_established(struct sctp_association *asoc,
1832 struct sk_buff *skb)
1833{
1834 return 0;
1835}
1836
1837static inline int security_mptcp_add_subflow(struct sock *sk, struct sock *ssk)
1838{
1839 return 0;
1840}
1841#endif /* CONFIG_SECURITY_NETWORK */
1842
1843#ifdef CONFIG_SECURITY_INFINIBAND
1844int security_ib_pkey_access(void *sec, u64 subnet_prefix, u16 pkey);
1845int security_ib_endport_manage_subnet(void *sec, const char *name, u8 port_num);
1846int security_ib_alloc_security(void **sec);
1847void security_ib_free_security(void *sec);
1848#else /* CONFIG_SECURITY_INFINIBAND */
1849static inline int security_ib_pkey_access(void *sec, u64 subnet_prefix, u16 pkey)
1850{
1851 return 0;
1852}
1853
1854static inline int security_ib_endport_manage_subnet(void *sec, const char *dev_name, u8 port_num)
1855{
1856 return 0;
1857}
1858
1859static inline int security_ib_alloc_security(void **sec)
1860{
1861 return 0;
1862}
1863
1864static inline void security_ib_free_security(void *sec)
1865{
1866}
1867#endif /* CONFIG_SECURITY_INFINIBAND */
1868
1869#ifdef CONFIG_SECURITY_NETWORK_XFRM
1870
1871int security_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp,
1872 struct xfrm_user_sec_ctx *sec_ctx, gfp_t gfp);
1873int security_xfrm_policy_clone(struct xfrm_sec_ctx *old_ctx, struct xfrm_sec_ctx **new_ctxp);
1874void security_xfrm_policy_free(struct xfrm_sec_ctx *ctx);
1875int security_xfrm_policy_delete(struct xfrm_sec_ctx *ctx);
1876int security_xfrm_state_alloc(struct xfrm_state *x, struct xfrm_user_sec_ctx *sec_ctx);
1877int security_xfrm_state_alloc_acquire(struct xfrm_state *x,
1878 struct xfrm_sec_ctx *polsec, u32 secid);
1879int security_xfrm_state_delete(struct xfrm_state *x);
1880void security_xfrm_state_free(struct xfrm_state *x);
1881int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid);
1882int security_xfrm_state_pol_flow_match(struct xfrm_state *x,
1883 struct xfrm_policy *xp,
1884 const struct flowi_common *flic);
1885int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid);
1886void security_skb_classify_flow(struct sk_buff *skb, struct flowi_common *flic);
1887
1888#else /* CONFIG_SECURITY_NETWORK_XFRM */
1889
1890static inline int security_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp,
1891 struct xfrm_user_sec_ctx *sec_ctx,
1892 gfp_t gfp)
1893{
1894 return 0;
1895}
1896
1897static inline int security_xfrm_policy_clone(struct xfrm_sec_ctx *old, struct xfrm_sec_ctx **new_ctxp)
1898{
1899 return 0;
1900}
1901
1902static inline void security_xfrm_policy_free(struct xfrm_sec_ctx *ctx)
1903{
1904}
1905
1906static inline int security_xfrm_policy_delete(struct xfrm_sec_ctx *ctx)
1907{
1908 return 0;
1909}
1910
1911static inline int security_xfrm_state_alloc(struct xfrm_state *x,
1912 struct xfrm_user_sec_ctx *sec_ctx)
1913{
1914 return 0;
1915}
1916
1917static inline int security_xfrm_state_alloc_acquire(struct xfrm_state *x,
1918 struct xfrm_sec_ctx *polsec, u32 secid)
1919{
1920 return 0;
1921}
1922
1923static inline void security_xfrm_state_free(struct xfrm_state *x)
1924{
1925}
1926
1927static inline int security_xfrm_state_delete(struct xfrm_state *x)
1928{
1929 return 0;
1930}
1931
1932static inline int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid)
1933{
1934 return 0;
1935}
1936
1937static inline int security_xfrm_state_pol_flow_match(struct xfrm_state *x,
1938 struct xfrm_policy *xp,
1939 const struct flowi_common *flic)
1940{
1941 return 1;
1942}
1943
1944static inline int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid)
1945{
1946 return 0;
1947}
1948
1949static inline void security_skb_classify_flow(struct sk_buff *skb,
1950 struct flowi_common *flic)
1951{
1952}
1953
1954#endif /* CONFIG_SECURITY_NETWORK_XFRM */
1955
1956#ifdef CONFIG_SECURITY_PATH
1957int security_path_unlink(const struct path *dir, struct dentry *dentry);
1958int security_path_mkdir(const struct path *dir, struct dentry *dentry, umode_t mode);
1959int security_path_rmdir(const struct path *dir, struct dentry *dentry);
1960int security_path_mknod(const struct path *dir, struct dentry *dentry, umode_t mode,
1961 unsigned int dev);
1962void security_path_post_mknod(struct mnt_idmap *idmap, struct dentry *dentry);
1963int security_path_truncate(const struct path *path);
1964int security_path_symlink(const struct path *dir, struct dentry *dentry,
1965 const char *old_name);
1966int security_path_link(struct dentry *old_dentry, const struct path *new_dir,
1967 struct dentry *new_dentry);
1968int security_path_rename(const struct path *old_dir, struct dentry *old_dentry,
1969 const struct path *new_dir, struct dentry *new_dentry,
1970 unsigned int flags);
1971int security_path_chmod(const struct path *path, umode_t mode);
1972int security_path_chown(const struct path *path, kuid_t uid, kgid_t gid);
1973int security_path_chroot(const struct path *path);
1974#else /* CONFIG_SECURITY_PATH */
1975static inline int security_path_unlink(const struct path *dir, struct dentry *dentry)
1976{
1977 return 0;
1978}
1979
1980static inline int security_path_mkdir(const struct path *dir, struct dentry *dentry,
1981 umode_t mode)
1982{
1983 return 0;
1984}
1985
1986static inline int security_path_rmdir(const struct path *dir, struct dentry *dentry)
1987{
1988 return 0;
1989}
1990
1991static inline int security_path_mknod(const struct path *dir, struct dentry *dentry,
1992 umode_t mode, unsigned int dev)
1993{
1994 return 0;
1995}
1996
1997static inline void security_path_post_mknod(struct mnt_idmap *idmap,
1998 struct dentry *dentry)
1999{ }
2000
2001static inline int security_path_truncate(const struct path *path)
2002{
2003 return 0;
2004}
2005
2006static inline int security_path_symlink(const struct path *dir, struct dentry *dentry,
2007 const char *old_name)
2008{
2009 return 0;
2010}
2011
2012static inline int security_path_link(struct dentry *old_dentry,
2013 const struct path *new_dir,
2014 struct dentry *new_dentry)
2015{
2016 return 0;
2017}
2018
2019static inline int security_path_rename(const struct path *old_dir,
2020 struct dentry *old_dentry,
2021 const struct path *new_dir,
2022 struct dentry *new_dentry,
2023 unsigned int flags)
2024{
2025 return 0;
2026}
2027
2028static inline int security_path_chmod(const struct path *path, umode_t mode)
2029{
2030 return 0;
2031}
2032
2033static inline int security_path_chown(const struct path *path, kuid_t uid, kgid_t gid)
2034{
2035 return 0;
2036}
2037
2038static inline int security_path_chroot(const struct path *path)
2039{
2040 return 0;
2041}
2042#endif /* CONFIG_SECURITY_PATH */
2043
2044#ifdef CONFIG_KEYS
2045#ifdef CONFIG_SECURITY
2046
2047int security_key_alloc(struct key *key, const struct cred *cred, unsigned long flags);
2048void security_key_free(struct key *key);
2049int security_key_permission(key_ref_t key_ref, const struct cred *cred,
2050 enum key_need_perm need_perm);
2051int security_key_getsecurity(struct key *key, char **_buffer);
2052void security_key_post_create_or_update(struct key *keyring, struct key *key,
2053 const void *payload, size_t payload_len,
2054 unsigned long flags, bool create);
2055
2056#else
2057
2058static inline int security_key_alloc(struct key *key,
2059 const struct cred *cred,
2060 unsigned long flags)
2061{
2062 return 0;
2063}
2064
2065static inline void security_key_free(struct key *key)
2066{
2067}
2068
2069static inline int security_key_permission(key_ref_t key_ref,
2070 const struct cred *cred,
2071 enum key_need_perm need_perm)
2072{
2073 return 0;
2074}
2075
2076static inline int security_key_getsecurity(struct key *key, char **_buffer)
2077{
2078 *_buffer = NULL;
2079 return 0;
2080}
2081
2082static inline void security_key_post_create_or_update(struct key *keyring,
2083 struct key *key,
2084 const void *payload,
2085 size_t payload_len,
2086 unsigned long flags,
2087 bool create)
2088{ }
2089
2090#endif
2091#endif /* CONFIG_KEYS */
2092
2093#ifdef CONFIG_AUDIT
2094#ifdef CONFIG_SECURITY
2095int security_audit_rule_init(u32 field, u32 op, char *rulestr, void **lsmrule,
2096 gfp_t gfp);
2097int security_audit_rule_known(struct audit_krule *krule);
2098int security_audit_rule_match(u32 secid, u32 field, u32 op, void *lsmrule);
2099void security_audit_rule_free(void *lsmrule);
2100
2101#else
2102
2103static inline int security_audit_rule_init(u32 field, u32 op, char *rulestr,
2104 void **lsmrule, gfp_t gfp)
2105{
2106 return 0;
2107}
2108
2109static inline int security_audit_rule_known(struct audit_krule *krule)
2110{
2111 return 0;
2112}
2113
2114static inline int security_audit_rule_match(u32 secid, u32 field, u32 op,
2115 void *lsmrule)
2116{
2117 return 0;
2118}
2119
2120static inline void security_audit_rule_free(void *lsmrule)
2121{ }
2122
2123#endif /* CONFIG_SECURITY */
2124#endif /* CONFIG_AUDIT */
2125
2126#ifdef CONFIG_SECURITYFS
2127
2128extern struct dentry *securityfs_create_file(const char *name, umode_t mode,
2129 struct dentry *parent, void *data,
2130 const struct file_operations *fops);
2131extern struct dentry *securityfs_create_dir(const char *name, struct dentry *parent);
2132struct dentry *securityfs_create_symlink(const char *name,
2133 struct dentry *parent,
2134 const char *target,
2135 const struct inode_operations *iops);
2136extern void securityfs_remove(struct dentry *dentry);
2137extern void securityfs_recursive_remove(struct dentry *dentry);
2138
2139#else /* CONFIG_SECURITYFS */
2140
2141static inline struct dentry *securityfs_create_dir(const char *name,
2142 struct dentry *parent)
2143{
2144 return ERR_PTR(-ENODEV);
2145}
2146
2147static inline struct dentry *securityfs_create_file(const char *name,
2148 umode_t mode,
2149 struct dentry *parent,
2150 void *data,
2151 const struct file_operations *fops)
2152{
2153 return ERR_PTR(-ENODEV);
2154}
2155
2156static inline struct dentry *securityfs_create_symlink(const char *name,
2157 struct dentry *parent,
2158 const char *target,
2159 const struct inode_operations *iops)
2160{
2161 return ERR_PTR(-ENODEV);
2162}
2163
2164static inline void securityfs_remove(struct dentry *dentry)
2165{}
2166
2167#endif
2168
2169#ifdef CONFIG_BPF_SYSCALL
2170union bpf_attr;
2171struct bpf_map;
2172struct bpf_prog;
2173struct bpf_token;
2174#ifdef CONFIG_SECURITY
2175extern int security_bpf(int cmd, union bpf_attr *attr, unsigned int size);
2176extern int security_bpf_map(struct bpf_map *map, fmode_t fmode);
2177extern int security_bpf_prog(struct bpf_prog *prog);
2178extern int security_bpf_map_create(struct bpf_map *map, union bpf_attr *attr,
2179 struct bpf_token *token);
2180extern void security_bpf_map_free(struct bpf_map *map);
2181extern int security_bpf_prog_load(struct bpf_prog *prog, union bpf_attr *attr,
2182 struct bpf_token *token);
2183extern void security_bpf_prog_free(struct bpf_prog *prog);
2184extern int security_bpf_token_create(struct bpf_token *token, union bpf_attr *attr,
2185 const struct path *path);
2186extern void security_bpf_token_free(struct bpf_token *token);
2187extern int security_bpf_token_cmd(const struct bpf_token *token, enum bpf_cmd cmd);
2188extern int security_bpf_token_capable(const struct bpf_token *token, int cap);
2189#else
2190static inline int security_bpf(int cmd, union bpf_attr *attr,
2191 unsigned int size)
2192{
2193 return 0;
2194}
2195
2196static inline int security_bpf_map(struct bpf_map *map, fmode_t fmode)
2197{
2198 return 0;
2199}
2200
2201static inline int security_bpf_prog(struct bpf_prog *prog)
2202{
2203 return 0;
2204}
2205
2206static inline int security_bpf_map_create(struct bpf_map *map, union bpf_attr *attr,
2207 struct bpf_token *token)
2208{
2209 return 0;
2210}
2211
2212static inline void security_bpf_map_free(struct bpf_map *map)
2213{ }
2214
2215static inline int security_bpf_prog_load(struct bpf_prog *prog, union bpf_attr *attr,
2216 struct bpf_token *token)
2217{
2218 return 0;
2219}
2220
2221static inline void security_bpf_prog_free(struct bpf_prog *prog)
2222{ }
2223
2224static inline int security_bpf_token_create(struct bpf_token *token, union bpf_attr *attr,
2225 const struct path *path)
2226{
2227 return 0;
2228}
2229
2230static inline void security_bpf_token_free(struct bpf_token *token)
2231{ }
2232
2233static inline int security_bpf_token_cmd(const struct bpf_token *token, enum bpf_cmd cmd)
2234{
2235 return 0;
2236}
2237
2238static inline int security_bpf_token_capable(const struct bpf_token *token, int cap)
2239{
2240 return 0;
2241}
2242#endif /* CONFIG_SECURITY */
2243#endif /* CONFIG_BPF_SYSCALL */
2244
2245#ifdef CONFIG_PERF_EVENTS
2246struct perf_event_attr;
2247struct perf_event;
2248
2249#ifdef CONFIG_SECURITY
2250extern int security_perf_event_open(struct perf_event_attr *attr, int type);
2251extern int security_perf_event_alloc(struct perf_event *event);
2252extern void security_perf_event_free(struct perf_event *event);
2253extern int security_perf_event_read(struct perf_event *event);
2254extern int security_perf_event_write(struct perf_event *event);
2255#else
2256static inline int security_perf_event_open(struct perf_event_attr *attr,
2257 int type)
2258{
2259 return 0;
2260}
2261
2262static inline int security_perf_event_alloc(struct perf_event *event)
2263{
2264 return 0;
2265}
2266
2267static inline void security_perf_event_free(struct perf_event *event)
2268{
2269}
2270
2271static inline int security_perf_event_read(struct perf_event *event)
2272{
2273 return 0;
2274}
2275
2276static inline int security_perf_event_write(struct perf_event *event)
2277{
2278 return 0;
2279}
2280#endif /* CONFIG_SECURITY */
2281#endif /* CONFIG_PERF_EVENTS */
2282
2283#ifdef CONFIG_IO_URING
2284#ifdef CONFIG_SECURITY
2285extern int security_uring_override_creds(const struct cred *new);
2286extern int security_uring_sqpoll(void);
2287extern int security_uring_cmd(struct io_uring_cmd *ioucmd);
2288#else
2289static inline int security_uring_override_creds(const struct cred *new)
2290{
2291 return 0;
2292}
2293static inline int security_uring_sqpoll(void)
2294{
2295 return 0;
2296}
2297static inline int security_uring_cmd(struct io_uring_cmd *ioucmd)
2298{
2299 return 0;
2300}
2301#endif /* CONFIG_SECURITY */
2302#endif /* CONFIG_IO_URING */
2303
2304#ifdef CONFIG_SECURITY
2305extern void security_initramfs_populated(void);
2306#else
2307static inline void security_initramfs_populated(void)
2308{
2309}
2310#endif /* CONFIG_SECURITY */
2311
2312#endif /* ! __LINUX_SECURITY_H */