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

source code of linux/include/linux/security.h