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