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23#ifndef __LINUX_SECURITY_H
24#define __LINUX_SECURITY_H
25
26#include <linux/key.h>
27#include <linux/capability.h>
28#include <linux/fs.h>
29#include <linux/slab.h>
30#include <linux/err.h>
31#include <linux/string.h>
32#include <linux/mm.h>
33
34struct linux_binprm;
35struct cred;
36struct rlimit;
37struct kernel_siginfo;
38struct sembuf;
39struct kern_ipc_perm;
40struct audit_context;
41struct super_block;
42struct inode;
43struct dentry;
44struct file;
45struct vfsmount;
46struct path;
47struct qstr;
48struct iattr;
49struct fown_struct;
50struct file_operations;
51struct msg_msg;
52struct xattr;
53struct kernfs_node;
54struct xfrm_sec_ctx;
55struct mm_struct;
56struct fs_context;
57struct fs_parameter;
58enum fs_value_type;
59struct watch;
60struct watch_notification;
61
62
63#define CAP_OPT_NONE 0x0
64
65#define CAP_OPT_NOAUDIT BIT(1)
66
67#define CAP_OPT_INSETID BIT(2)
68
69
70#define SECURITY_LSM_NATIVE_LABELS 1
71
72struct ctl_table;
73struct audit_krule;
74struct user_namespace;
75struct timezone;
76
77enum lsm_event {
78 LSM_POLICY_CHANGE,
79};
80
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104
105enum lockdown_reason {
106 LOCKDOWN_NONE,
107 LOCKDOWN_MODULE_SIGNATURE,
108 LOCKDOWN_DEV_MEM,
109 LOCKDOWN_EFI_TEST,
110 LOCKDOWN_KEXEC,
111 LOCKDOWN_HIBERNATION,
112 LOCKDOWN_PCI_ACCESS,
113 LOCKDOWN_IOPORT,
114 LOCKDOWN_MSR,
115 LOCKDOWN_ACPI_TABLES,
116 LOCKDOWN_PCMCIA_CIS,
117 LOCKDOWN_TIOCSSERIAL,
118 LOCKDOWN_MODULE_PARAMETERS,
119 LOCKDOWN_MMIOTRACE,
120 LOCKDOWN_DEBUGFS,
121 LOCKDOWN_XMON_WR,
122 LOCKDOWN_INTEGRITY_MAX,
123 LOCKDOWN_KCORE,
124 LOCKDOWN_KPROBES,
125 LOCKDOWN_BPF_READ,
126 LOCKDOWN_PERF,
127 LOCKDOWN_TRACEFS,
128 LOCKDOWN_XMON_RW,
129 LOCKDOWN_CONFIDENTIALITY_MAX,
130};
131
132extern const char *const lockdown_reasons[LOCKDOWN_CONFIDENTIALITY_MAX+1];
133
134
135extern int cap_capable(const struct cred *cred, struct user_namespace *ns,
136 int cap, unsigned int opts);
137extern int cap_settime(const struct timespec64 *ts, const struct timezone *tz);
138extern int cap_ptrace_access_check(struct task_struct *child, unsigned int mode);
139extern int cap_ptrace_traceme(struct task_struct *parent);
140extern int cap_capget(struct task_struct *target, kernel_cap_t *effective, kernel_cap_t *inheritable, kernel_cap_t *permitted);
141extern int cap_capset(struct cred *new, const struct cred *old,
142 const kernel_cap_t *effective,
143 const kernel_cap_t *inheritable,
144 const kernel_cap_t *permitted);
145extern int cap_bprm_creds_from_file(struct linux_binprm *bprm, struct file *file);
146extern int cap_inode_setxattr(struct dentry *dentry, const char *name,
147 const void *value, size_t size, int flags);
148extern int cap_inode_removexattr(struct dentry *dentry, const char *name);
149extern int cap_inode_need_killpriv(struct dentry *dentry);
150extern int cap_inode_killpriv(struct dentry *dentry);
151extern int cap_inode_getsecurity(struct inode *inode, const char *name,
152 void **buffer, bool alloc);
153extern int cap_mmap_addr(unsigned long addr);
154extern int cap_mmap_file(struct file *file, unsigned long reqprot,
155 unsigned long prot, unsigned long flags);
156extern int cap_task_fix_setuid(struct cred *new, const struct cred *old, int flags);
157extern int cap_task_prctl(int option, unsigned long arg2, unsigned long arg3,
158 unsigned long arg4, unsigned long arg5);
159extern int cap_task_setscheduler(struct task_struct *p);
160extern int cap_task_setioprio(struct task_struct *p, int ioprio);
161extern int cap_task_setnice(struct task_struct *p, int nice);
162extern int cap_vm_enough_memory(struct mm_struct *mm, long pages);
163
164struct msghdr;
165struct sk_buff;
166struct sock;
167struct sockaddr;
168struct socket;
169struct flowi;
170struct dst_entry;
171struct xfrm_selector;
172struct xfrm_policy;
173struct xfrm_state;
174struct xfrm_user_sec_ctx;
175struct seq_file;
176struct sctp_endpoint;
177
178#ifdef CONFIG_MMU
179extern unsigned long mmap_min_addr;
180extern unsigned long dac_mmap_min_addr;
181#else
182#define mmap_min_addr 0UL
183#define dac_mmap_min_addr 0UL
184#endif
185
186
187
188
189
190#define LSM_SETID_ID 1
191
192
193#define LSM_SETID_RE 2
194
195
196#define LSM_SETID_RES 4
197
198
199#define LSM_SETID_FS 8
200
201
202#define LSM_PRLIMIT_READ 1
203#define LSM_PRLIMIT_WRITE 2
204
205
206struct sched_param;
207struct request_sock;
208
209
210#define LSM_UNSAFE_SHARE 1
211#define LSM_UNSAFE_PTRACE 2
212#define LSM_UNSAFE_NO_NEW_PRIVS 4
213
214#ifdef CONFIG_MMU
215extern int mmap_min_addr_handler(struct ctl_table *table, int write,
216 void *buffer, size_t *lenp, loff_t *ppos);
217#endif
218
219
220typedef int (*initxattrs) (struct inode *inode,
221 const struct xattr *xattr_array, void *fs_data);
222
223
224
225#define __data_id_enumify(ENUM, dummy) LOADING_ ## ENUM,
226#define __data_id_stringify(dummy, str) #str,
227
228enum kernel_load_data_id {
229 __kernel_read_file_id(__data_id_enumify)
230};
231
232static const char * const kernel_load_data_str[] = {
233 __kernel_read_file_id(__data_id_stringify)
234};
235
236static inline const char *kernel_load_data_id_str(enum kernel_load_data_id id)
237{
238 if ((unsigned)id >= LOADING_MAX_ID)
239 return kernel_load_data_str[LOADING_UNKNOWN];
240
241 return kernel_load_data_str[id];
242}
243
244#ifdef CONFIG_SECURITY
245
246int call_blocking_lsm_notifier(enum lsm_event event, void *data);
247int register_blocking_lsm_notifier(struct notifier_block *nb);
248int unregister_blocking_lsm_notifier(struct notifier_block *nb);
249
250
251extern int security_init(void);
252extern int early_security_init(void);
253
254
255int security_binder_set_context_mgr(struct task_struct *mgr);
256int security_binder_transaction(struct task_struct *from,
257 struct task_struct *to);
258int security_binder_transfer_binder(struct task_struct *from,
259 struct task_struct *to);
260int security_binder_transfer_file(struct task_struct *from,
261 struct task_struct *to, struct file *file);
262int security_ptrace_access_check(struct task_struct *child, unsigned int mode);
263int security_ptrace_traceme(struct task_struct *parent);
264int security_capget(struct task_struct *target,
265 kernel_cap_t *effective,
266 kernel_cap_t *inheritable,
267 kernel_cap_t *permitted);
268int security_capset(struct cred *new, const struct cred *old,
269 const kernel_cap_t *effective,
270 const kernel_cap_t *inheritable,
271 const kernel_cap_t *permitted);
272int security_capable(const struct cred *cred,
273 struct user_namespace *ns,
274 int cap,
275 unsigned int opts);
276int security_quotactl(int cmds, int type, int id, struct super_block *sb);
277int security_quota_on(struct dentry *dentry);
278int security_syslog(int type);
279int security_settime64(const struct timespec64 *ts, const struct timezone *tz);
280int security_vm_enough_memory_mm(struct mm_struct *mm, long pages);
281int security_bprm_creds_for_exec(struct linux_binprm *bprm);
282int security_bprm_creds_from_file(struct linux_binprm *bprm, struct file *file);
283int security_bprm_check(struct linux_binprm *bprm);
284void security_bprm_committing_creds(struct linux_binprm *bprm);
285void security_bprm_committed_creds(struct linux_binprm *bprm);
286int security_fs_context_dup(struct fs_context *fc, struct fs_context *src_fc);
287int security_fs_context_parse_param(struct fs_context *fc, struct fs_parameter *param);
288int security_sb_alloc(struct super_block *sb);
289void security_sb_free(struct super_block *sb);
290void security_free_mnt_opts(void **mnt_opts);
291int security_sb_eat_lsm_opts(char *options, void **mnt_opts);
292int security_sb_remount(struct super_block *sb, void *mnt_opts);
293int security_sb_kern_mount(struct super_block *sb);
294int security_sb_show_options(struct seq_file *m, struct super_block *sb);
295int security_sb_statfs(struct dentry *dentry);
296int security_sb_mount(const char *dev_name, const struct path *path,
297 const char *type, unsigned long flags, void *data);
298int security_sb_umount(struct vfsmount *mnt, int flags);
299int security_sb_pivotroot(const struct path *old_path, const struct path *new_path);
300int security_sb_set_mnt_opts(struct super_block *sb,
301 void *mnt_opts,
302 unsigned long kern_flags,
303 unsigned long *set_kern_flags);
304int security_sb_clone_mnt_opts(const struct super_block *oldsb,
305 struct super_block *newsb,
306 unsigned long kern_flags,
307 unsigned long *set_kern_flags);
308int security_add_mnt_opt(const char *option, const char *val,
309 int len, void **mnt_opts);
310int security_move_mount(const struct path *from_path, const struct path *to_path);
311int security_dentry_init_security(struct dentry *dentry, int mode,
312 const struct qstr *name, void **ctx,
313 u32 *ctxlen);
314int security_dentry_create_files_as(struct dentry *dentry, int mode,
315 struct qstr *name,
316 const struct cred *old,
317 struct cred *new);
318int security_path_notify(const struct path *path, u64 mask,
319 unsigned int obj_type);
320int security_inode_alloc(struct inode *inode);
321void security_inode_free(struct inode *inode);
322int security_inode_init_security(struct inode *inode, struct inode *dir,
323 const struct qstr *qstr,
324 initxattrs initxattrs, void *fs_data);
325int security_old_inode_init_security(struct inode *inode, struct inode *dir,
326 const struct qstr *qstr, const char **name,
327 void **value, size_t *len);
328int security_inode_create(struct inode *dir, struct dentry *dentry, umode_t mode);
329int security_inode_link(struct dentry *old_dentry, struct inode *dir,
330 struct dentry *new_dentry);
331int security_inode_unlink(struct inode *dir, struct dentry *dentry);
332int security_inode_symlink(struct inode *dir, struct dentry *dentry,
333 const char *old_name);
334int security_inode_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode);
335int security_inode_rmdir(struct inode *dir, struct dentry *dentry);
336int security_inode_mknod(struct inode *dir, struct dentry *dentry, umode_t mode, dev_t dev);
337int security_inode_rename(struct inode *old_dir, struct dentry *old_dentry,
338 struct inode *new_dir, struct dentry *new_dentry,
339 unsigned int flags);
340int security_inode_readlink(struct dentry *dentry);
341int security_inode_follow_link(struct dentry *dentry, struct inode *inode,
342 bool rcu);
343int security_inode_permission(struct inode *inode, int mask);
344int security_inode_setattr(struct dentry *dentry, struct iattr *attr);
345int security_inode_getattr(const struct path *path);
346int security_inode_setxattr(struct dentry *dentry, const char *name,
347 const void *value, size_t size, int flags);
348void security_inode_post_setxattr(struct dentry *dentry, const char *name,
349 const void *value, size_t size, int flags);
350int security_inode_getxattr(struct dentry *dentry, const char *name);
351int security_inode_listxattr(struct dentry *dentry);
352int security_inode_removexattr(struct dentry *dentry, const char *name);
353int security_inode_need_killpriv(struct dentry *dentry);
354int security_inode_killpriv(struct dentry *dentry);
355int security_inode_getsecurity(struct inode *inode, const char *name, void **buffer, bool alloc);
356int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags);
357int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size);
358void security_inode_getsecid(struct inode *inode, u32 *secid);
359int security_inode_copy_up(struct dentry *src, struct cred **new);
360int security_inode_copy_up_xattr(const char *name);
361int security_kernfs_init_security(struct kernfs_node *kn_dir,
362 struct kernfs_node *kn);
363int security_file_permission(struct file *file, int mask);
364int security_file_alloc(struct file *file);
365void security_file_free(struct file *file);
366int security_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg);
367int security_mmap_file(struct file *file, unsigned long prot,
368 unsigned long flags);
369int security_mmap_addr(unsigned long addr);
370int security_file_mprotect(struct vm_area_struct *vma, unsigned long reqprot,
371 unsigned long prot);
372int security_file_lock(struct file *file, unsigned int cmd);
373int security_file_fcntl(struct file *file, unsigned int cmd, unsigned long arg);
374void security_file_set_fowner(struct file *file);
375int security_file_send_sigiotask(struct task_struct *tsk,
376 struct fown_struct *fown, int sig);
377int security_file_receive(struct file *file);
378int security_file_open(struct file *file);
379int security_task_alloc(struct task_struct *task, unsigned long clone_flags);
380void security_task_free(struct task_struct *task);
381int security_cred_alloc_blank(struct cred *cred, gfp_t gfp);
382void security_cred_free(struct cred *cred);
383int security_prepare_creds(struct cred *new, const struct cred *old, gfp_t gfp);
384void security_transfer_creds(struct cred *new, const struct cred *old);
385void security_cred_getsecid(const struct cred *c, u32 *secid);
386int security_kernel_act_as(struct cred *new, u32 secid);
387int security_kernel_create_files_as(struct cred *new, struct inode *inode);
388int security_kernel_module_request(char *kmod_name);
389int security_kernel_load_data(enum kernel_load_data_id id);
390int security_kernel_read_file(struct file *file, enum kernel_read_file_id id);
391int security_kernel_post_read_file(struct file *file, char *buf, loff_t size,
392 enum kernel_read_file_id id);
393int security_task_fix_setuid(struct cred *new, const struct cred *old,
394 int flags);
395int security_task_fix_setgid(struct cred *new, const struct cred *old,
396 int flags);
397int security_task_setpgid(struct task_struct *p, pid_t pgid);
398int security_task_getpgid(struct task_struct *p);
399int security_task_getsid(struct task_struct *p);
400void security_task_getsecid(struct task_struct *p, u32 *secid);
401int security_task_setnice(struct task_struct *p, int nice);
402int security_task_setioprio(struct task_struct *p, int ioprio);
403int security_task_getioprio(struct task_struct *p);
404int security_task_prlimit(const struct cred *cred, const struct cred *tcred,
405 unsigned int flags);
406int security_task_setrlimit(struct task_struct *p, unsigned int resource,
407 struct rlimit *new_rlim);
408int security_task_setscheduler(struct task_struct *p);
409int security_task_getscheduler(struct task_struct *p);
410int security_task_movememory(struct task_struct *p);
411int security_task_kill(struct task_struct *p, struct kernel_siginfo *info,
412 int sig, const struct cred *cred);
413int security_task_prctl(int option, unsigned long arg2, unsigned long arg3,
414 unsigned long arg4, unsigned long arg5);
415void security_task_to_inode(struct task_struct *p, struct inode *inode);
416int security_ipc_permission(struct kern_ipc_perm *ipcp, short flag);
417void security_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid);
418int security_msg_msg_alloc(struct msg_msg *msg);
419void security_msg_msg_free(struct msg_msg *msg);
420int security_msg_queue_alloc(struct kern_ipc_perm *msq);
421void security_msg_queue_free(struct kern_ipc_perm *msq);
422int security_msg_queue_associate(struct kern_ipc_perm *msq, int msqflg);
423int security_msg_queue_msgctl(struct kern_ipc_perm *msq, int cmd);
424int security_msg_queue_msgsnd(struct kern_ipc_perm *msq,
425 struct msg_msg *msg, int msqflg);
426int security_msg_queue_msgrcv(struct kern_ipc_perm *msq, struct msg_msg *msg,
427 struct task_struct *target, long type, int mode);
428int security_shm_alloc(struct kern_ipc_perm *shp);
429void security_shm_free(struct kern_ipc_perm *shp);
430int security_shm_associate(struct kern_ipc_perm *shp, int shmflg);
431int security_shm_shmctl(struct kern_ipc_perm *shp, int cmd);
432int security_shm_shmat(struct kern_ipc_perm *shp, char __user *shmaddr, int shmflg);
433int security_sem_alloc(struct kern_ipc_perm *sma);
434void security_sem_free(struct kern_ipc_perm *sma);
435int security_sem_associate(struct kern_ipc_perm *sma, int semflg);
436int security_sem_semctl(struct kern_ipc_perm *sma, int cmd);
437int security_sem_semop(struct kern_ipc_perm *sma, struct sembuf *sops,
438 unsigned nsops, int alter);
439void security_d_instantiate(struct dentry *dentry, struct inode *inode);
440int security_getprocattr(struct task_struct *p, const char *lsm, char *name,
441 char **value);
442int security_setprocattr(const char *lsm, const char *name, void *value,
443 size_t size);
444int security_netlink_send(struct sock *sk, struct sk_buff *skb);
445int security_ismaclabel(const char *name);
446int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen);
447int security_secctx_to_secid(const char *secdata, u32 seclen, u32 *secid);
448void security_release_secctx(char *secdata, u32 seclen);
449void security_inode_invalidate_secctx(struct inode *inode);
450int security_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen);
451int security_inode_setsecctx(struct dentry *dentry, void *ctx, u32 ctxlen);
452int security_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen);
453int security_locked_down(enum lockdown_reason what);
454#else
455
456static inline int call_blocking_lsm_notifier(enum lsm_event event, void *data)
457{
458 return 0;
459}
460
461static inline int register_blocking_lsm_notifier(struct notifier_block *nb)
462{
463 return 0;
464}
465
466static inline int unregister_blocking_lsm_notifier(struct notifier_block *nb)
467{
468 return 0;
469}
470
471static inline void security_free_mnt_opts(void **mnt_opts)
472{
473}
474
475
476
477
478
479
480static inline int security_init(void)
481{
482 return 0;
483}
484
485static inline int early_security_init(void)
486{
487 return 0;
488}
489
490static inline int security_binder_set_context_mgr(struct task_struct *mgr)
491{
492 return 0;
493}
494
495static inline int security_binder_transaction(struct task_struct *from,
496 struct task_struct *to)
497{
498 return 0;
499}
500
501static inline int security_binder_transfer_binder(struct task_struct *from,
502 struct task_struct *to)
503{
504 return 0;
505}
506
507static inline int security_binder_transfer_file(struct task_struct *from,
508 struct task_struct *to,
509 struct file *file)
510{
511 return 0;
512}
513
514static inline int security_ptrace_access_check(struct task_struct *child,
515 unsigned int mode)
516{
517 return cap_ptrace_access_check(child, mode);
518}
519
520static inline int security_ptrace_traceme(struct task_struct *parent)
521{
522 return cap_ptrace_traceme(parent);
523}
524
525static inline int security_capget(struct task_struct *target,
526 kernel_cap_t *effective,
527 kernel_cap_t *inheritable,
528 kernel_cap_t *permitted)
529{
530 return cap_capget(target, effective, inheritable, permitted);
531}
532
533static inline int security_capset(struct cred *new,
534 const struct cred *old,
535 const kernel_cap_t *effective,
536 const kernel_cap_t *inheritable,
537 const kernel_cap_t *permitted)
538{
539 return cap_capset(new, old, effective, inheritable, permitted);
540}
541
542static inline int security_capable(const struct cred *cred,
543 struct user_namespace *ns,
544 int cap,
545 unsigned int opts)
546{
547 return cap_capable(cred, ns, cap, opts);
548}
549
550static inline int security_quotactl(int cmds, int type, int id,
551 struct super_block *sb)
552{
553 return 0;
554}
555
556static inline int security_quota_on(struct dentry *dentry)
557{
558 return 0;
559}
560
561static inline int security_syslog(int type)
562{
563 return 0;
564}
565
566static inline int security_settime64(const struct timespec64 *ts,
567 const struct timezone *tz)
568{
569 return cap_settime(ts, tz);
570}
571
572static inline int security_vm_enough_memory_mm(struct mm_struct *mm, long pages)
573{
574 return __vm_enough_memory(mm, pages, cap_vm_enough_memory(mm, pages));
575}
576
577static inline int security_bprm_creds_for_exec(struct linux_binprm *bprm)
578{
579 return 0;
580}
581
582static inline int security_bprm_creds_from_file(struct linux_binprm *bprm,
583 struct file *file)
584{
585 return cap_bprm_creds_from_file(bprm, file);
586}
587
588static inline int security_bprm_check(struct linux_binprm *bprm)
589{
590 return 0;
591}
592
593static inline void security_bprm_committing_creds(struct linux_binprm *bprm)
594{
595}
596
597static inline void security_bprm_committed_creds(struct linux_binprm *bprm)
598{
599}
600
601static inline int security_fs_context_dup(struct fs_context *fc,
602 struct fs_context *src_fc)
603{
604 return 0;
605}
606static inline int security_fs_context_parse_param(struct fs_context *fc,
607 struct fs_parameter *param)
608{
609 return -ENOPARAM;
610}
611
612static inline int security_sb_alloc(struct super_block *sb)
613{
614 return 0;
615}
616
617static inline void security_sb_free(struct super_block *sb)
618{ }
619
620static inline int security_sb_eat_lsm_opts(char *options,
621 void **mnt_opts)
622{
623 return 0;
624}
625
626static inline int security_sb_remount(struct super_block *sb,
627 void *mnt_opts)
628{
629 return 0;
630}
631
632static inline int security_sb_kern_mount(struct super_block *sb)
633{
634 return 0;
635}
636
637static inline int security_sb_show_options(struct seq_file *m,
638 struct super_block *sb)
639{
640 return 0;
641}
642
643static inline int security_sb_statfs(struct dentry *dentry)
644{
645 return 0;
646}
647
648static inline int security_sb_mount(const char *dev_name, const struct path *path,
649 const char *type, unsigned long flags,
650 void *data)
651{
652 return 0;
653}
654
655static inline int security_sb_umount(struct vfsmount *mnt, int flags)
656{
657 return 0;
658}
659
660static inline int security_sb_pivotroot(const struct path *old_path,
661 const struct path *new_path)
662{
663 return 0;
664}
665
666static inline int security_sb_set_mnt_opts(struct super_block *sb,
667 void *mnt_opts,
668 unsigned long kern_flags,
669 unsigned long *set_kern_flags)
670{
671 return 0;
672}
673
674static inline int security_sb_clone_mnt_opts(const struct super_block *oldsb,
675 struct super_block *newsb,
676 unsigned long kern_flags,
677 unsigned long *set_kern_flags)
678{
679 return 0;
680}
681
682static inline int security_add_mnt_opt(const char *option, const char *val,
683 int len, void **mnt_opts)
684{
685 return 0;
686}
687
688static inline int security_move_mount(const struct path *from_path,
689 const struct path *to_path)
690{
691 return 0;
692}
693
694static inline int security_path_notify(const struct path *path, u64 mask,
695 unsigned int obj_type)
696{
697 return 0;
698}
699
700static inline int security_inode_alloc(struct inode *inode)
701{
702 return 0;
703}
704
705static inline void security_inode_free(struct inode *inode)
706{ }
707
708static inline int security_dentry_init_security(struct dentry *dentry,
709 int mode,
710 const struct qstr *name,
711 void **ctx,
712 u32 *ctxlen)
713{
714 return -EOPNOTSUPP;
715}
716
717static inline int security_dentry_create_files_as(struct dentry *dentry,
718 int mode, struct qstr *name,
719 const struct cred *old,
720 struct cred *new)
721{
722 return 0;
723}
724
725
726static inline int security_inode_init_security(struct inode *inode,
727 struct inode *dir,
728 const struct qstr *qstr,
729 const initxattrs xattrs,
730 void *fs_data)
731{
732 return 0;
733}
734
735static inline int security_old_inode_init_security(struct inode *inode,
736 struct inode *dir,
737 const struct qstr *qstr,
738 const char **name,
739 void **value, size_t *len)
740{
741 return -EOPNOTSUPP;
742}
743
744static inline int security_inode_create(struct inode *dir,
745 struct dentry *dentry,
746 umode_t mode)
747{
748 return 0;
749}
750
751static inline int security_inode_link(struct dentry *old_dentry,
752 struct inode *dir,
753 struct dentry *new_dentry)
754{
755 return 0;
756}
757
758static inline int security_inode_unlink(struct inode *dir,
759 struct dentry *dentry)
760{
761 return 0;
762}
763
764static inline int security_inode_symlink(struct inode *dir,
765 struct dentry *dentry,
766 const char *old_name)
767{
768 return 0;
769}
770
771static inline int security_inode_mkdir(struct inode *dir,
772 struct dentry *dentry,
773 int mode)
774{
775 return 0;
776}
777
778static inline int security_inode_rmdir(struct inode *dir,
779 struct dentry *dentry)
780{
781 return 0;
782}
783
784static inline int security_inode_mknod(struct inode *dir,
785 struct dentry *dentry,
786 int mode, dev_t dev)
787{
788 return 0;
789}
790
791static inline int security_inode_rename(struct inode *old_dir,
792 struct dentry *old_dentry,
793 struct inode *new_dir,
794 struct dentry *new_dentry,
795 unsigned int flags)
796{
797 return 0;
798}
799
800static inline int security_inode_readlink(struct dentry *dentry)
801{
802 return 0;
803}
804
805static inline int security_inode_follow_link(struct dentry *dentry,
806 struct inode *inode,
807 bool rcu)
808{
809 return 0;
810}
811
812static inline int security_inode_permission(struct inode *inode, int mask)
813{
814 return 0;
815}
816
817static inline int security_inode_setattr(struct dentry *dentry,
818 struct iattr *attr)
819{
820 return 0;
821}
822
823static inline int security_inode_getattr(const struct path *path)
824{
825 return 0;
826}
827
828static inline int security_inode_setxattr(struct dentry *dentry,
829 const char *name, const void *value, size_t size, int flags)
830{
831 return cap_inode_setxattr(dentry, name, value, size, flags);
832}
833
834static inline void security_inode_post_setxattr(struct dentry *dentry,
835 const char *name, const void *value, size_t size, int flags)
836{ }
837
838static inline int security_inode_getxattr(struct dentry *dentry,
839 const char *name)
840{
841 return 0;
842}
843
844static inline int security_inode_listxattr(struct dentry *dentry)
845{
846 return 0;
847}
848
849static inline int security_inode_removexattr(struct dentry *dentry,
850 const char *name)
851{
852 return cap_inode_removexattr(dentry, name);
853}
854
855static inline int security_inode_need_killpriv(struct dentry *dentry)
856{
857 return cap_inode_need_killpriv(dentry);
858}
859
860static inline int security_inode_killpriv(struct dentry *dentry)
861{
862 return cap_inode_killpriv(dentry);
863}
864
865static inline int security_inode_getsecurity(struct inode *inode, const char *name, void **buffer, bool alloc)
866{
867 return -EOPNOTSUPP;
868}
869
870static inline int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags)
871{
872 return -EOPNOTSUPP;
873}
874
875static inline int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size)
876{
877 return 0;
878}
879
880static inline void security_inode_getsecid(struct inode *inode, u32 *secid)
881{
882 *secid = 0;
883}
884
885static inline int security_inode_copy_up(struct dentry *src, struct cred **new)
886{
887 return 0;
888}
889
890static inline int security_kernfs_init_security(struct kernfs_node *kn_dir,
891 struct kernfs_node *kn)
892{
893 return 0;
894}
895
896static inline int security_inode_copy_up_xattr(const char *name)
897{
898 return -EOPNOTSUPP;
899}
900
901static inline int security_file_permission(struct file *file, int mask)
902{
903 return 0;
904}
905
906static inline int security_file_alloc(struct file *file)
907{
908 return 0;
909}
910
911static inline void security_file_free(struct file *file)
912{ }
913
914static inline int security_file_ioctl(struct file *file, unsigned int cmd,
915 unsigned long arg)
916{
917 return 0;
918}
919
920static inline int security_mmap_file(struct file *file, unsigned long prot,
921 unsigned long flags)
922{
923 return 0;
924}
925
926static inline int security_mmap_addr(unsigned long addr)
927{
928 return cap_mmap_addr(addr);
929}
930
931static inline int security_file_mprotect(struct vm_area_struct *vma,
932 unsigned long reqprot,
933 unsigned long prot)
934{
935 return 0;
936}
937
938static inline int security_file_lock(struct file *file, unsigned int cmd)
939{
940 return 0;
941}
942
943static inline int security_file_fcntl(struct file *file, unsigned int cmd,
944 unsigned long arg)
945{
946 return 0;
947}
948
949static inline void security_file_set_fowner(struct file *file)
950{
951 return;
952}
953
954static inline int security_file_send_sigiotask(struct task_struct *tsk,
955 struct fown_struct *fown,
956 int sig)
957{
958 return 0;
959}
960
961static inline int security_file_receive(struct file *file)
962{
963 return 0;
964}
965
966static inline int security_file_open(struct file *file)
967{
968 return 0;
969}
970
971static inline int security_task_alloc(struct task_struct *task,
972 unsigned long clone_flags)
973{
974 return 0;
975}
976
977static inline void security_task_free(struct task_struct *task)
978{ }
979
980static inline int security_cred_alloc_blank(struct cred *cred, gfp_t gfp)
981{
982 return 0;
983}
984
985static inline void security_cred_free(struct cred *cred)
986{ }
987
988static inline int security_prepare_creds(struct cred *new,
989 const struct cred *old,
990 gfp_t gfp)
991{
992 return 0;
993}
994
995static inline void security_transfer_creds(struct cred *new,
996 const struct cred *old)
997{
998}
999
1000static inline int security_kernel_act_as(struct cred *cred, u32 secid)
1001{
1002 return 0;
1003}
1004
1005static inline int security_kernel_create_files_as(struct cred *cred,
1006 struct inode *inode)
1007{
1008 return 0;
1009}
1010
1011static inline int security_kernel_module_request(char *kmod_name)
1012{
1013 return 0;
1014}
1015
1016static inline int security_kernel_load_data(enum kernel_load_data_id id)
1017{
1018 return 0;
1019}
1020
1021static inline int security_kernel_read_file(struct file *file,
1022 enum kernel_read_file_id id)
1023{
1024 return 0;
1025}
1026
1027static inline int security_kernel_post_read_file(struct file *file,
1028 char *buf, loff_t size,
1029 enum kernel_read_file_id id)
1030{
1031 return 0;
1032}
1033
1034static inline int security_task_fix_setuid(struct cred *new,
1035 const struct cred *old,
1036 int flags)
1037{
1038 return cap_task_fix_setuid(new, old, flags);
1039}
1040
1041static inline int security_task_fix_setgid(struct cred *new,
1042 const struct cred *old,
1043 int flags)
1044{
1045 return 0;
1046}
1047
1048static inline int security_task_setpgid(struct task_struct *p, pid_t pgid)
1049{
1050 return 0;
1051}
1052
1053static inline int security_task_getpgid(struct task_struct *p)
1054{
1055 return 0;
1056}
1057
1058static inline int security_task_getsid(struct task_struct *p)
1059{
1060 return 0;
1061}
1062
1063static inline void security_task_getsecid(struct task_struct *p, u32 *secid)
1064{
1065 *secid = 0;
1066}
1067
1068static inline int security_task_setnice(struct task_struct *p, int nice)
1069{
1070 return cap_task_setnice(p, nice);
1071}
1072
1073static inline int security_task_setioprio(struct task_struct *p, int ioprio)
1074{
1075 return cap_task_setioprio(p, ioprio);
1076}
1077
1078static inline int security_task_getioprio(struct task_struct *p)
1079{
1080 return 0;
1081}
1082
1083static inline int security_task_prlimit(const struct cred *cred,
1084 const struct cred *tcred,
1085 unsigned int flags)
1086{
1087 return 0;
1088}
1089
1090static inline int security_task_setrlimit(struct task_struct *p,
1091 unsigned int resource,
1092 struct rlimit *new_rlim)
1093{
1094 return 0;
1095}
1096
1097static inline int security_task_setscheduler(struct task_struct *p)
1098{
1099 return cap_task_setscheduler(p);
1100}
1101
1102static inline int security_task_getscheduler(struct task_struct *p)
1103{
1104 return 0;
1105}
1106
1107static inline int security_task_movememory(struct task_struct *p)
1108{
1109 return 0;
1110}
1111
1112static inline int security_task_kill(struct task_struct *p,
1113 struct kernel_siginfo *info, int sig,
1114 const struct cred *cred)
1115{
1116 return 0;
1117}
1118
1119static inline int security_task_prctl(int option, unsigned long arg2,
1120 unsigned long arg3,
1121 unsigned long arg4,
1122 unsigned long arg5)
1123{
1124 return cap_task_prctl(option, arg2, arg3, arg4, arg5);
1125}
1126
1127static inline void security_task_to_inode(struct task_struct *p, struct inode *inode)
1128{ }
1129
1130static inline int security_ipc_permission(struct kern_ipc_perm *ipcp,
1131 short flag)
1132{
1133 return 0;
1134}
1135
1136static inline void security_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid)
1137{
1138 *secid = 0;
1139}
1140
1141static inline int security_msg_msg_alloc(struct msg_msg *msg)
1142{
1143 return 0;
1144}
1145
1146static inline void security_msg_msg_free(struct msg_msg *msg)
1147{ }
1148
1149static inline int security_msg_queue_alloc(struct kern_ipc_perm *msq)
1150{
1151 return 0;
1152}
1153
1154static inline void security_msg_queue_free(struct kern_ipc_perm *msq)
1155{ }
1156
1157static inline int security_msg_queue_associate(struct kern_ipc_perm *msq,
1158 int msqflg)
1159{
1160 return 0;
1161}
1162
1163static inline int security_msg_queue_msgctl(struct kern_ipc_perm *msq, int cmd)
1164{
1165 return 0;
1166}
1167
1168static inline int security_msg_queue_msgsnd(struct kern_ipc_perm *msq,
1169 struct msg_msg *msg, int msqflg)
1170{
1171 return 0;
1172}
1173
1174static inline int security_msg_queue_msgrcv(struct kern_ipc_perm *msq,
1175 struct msg_msg *msg,
1176 struct task_struct *target,
1177 long type, int mode)
1178{
1179 return 0;
1180}
1181
1182static inline int security_shm_alloc(struct kern_ipc_perm *shp)
1183{
1184 return 0;
1185}
1186
1187static inline void security_shm_free(struct kern_ipc_perm *shp)
1188{ }
1189
1190static inline int security_shm_associate(struct kern_ipc_perm *shp,
1191 int shmflg)
1192{
1193 return 0;
1194}
1195
1196static inline int security_shm_shmctl(struct kern_ipc_perm *shp, int cmd)
1197{
1198 return 0;
1199}
1200
1201static inline int security_shm_shmat(struct kern_ipc_perm *shp,
1202 char __user *shmaddr, int shmflg)
1203{
1204 return 0;
1205}
1206
1207static inline int security_sem_alloc(struct kern_ipc_perm *sma)
1208{
1209 return 0;
1210}
1211
1212static inline void security_sem_free(struct kern_ipc_perm *sma)
1213{ }
1214
1215static inline int security_sem_associate(struct kern_ipc_perm *sma, int semflg)
1216{
1217 return 0;
1218}
1219
1220static inline int security_sem_semctl(struct kern_ipc_perm *sma, int cmd)
1221{
1222 return 0;
1223}
1224
1225static inline int security_sem_semop(struct kern_ipc_perm *sma,
1226 struct sembuf *sops, unsigned nsops,
1227 int alter)
1228{
1229 return 0;
1230}
1231
1232static inline void security_d_instantiate(struct dentry *dentry,
1233 struct inode *inode)
1234{ }
1235
1236static inline int security_getprocattr(struct task_struct *p, const char *lsm,
1237 char *name, char **value)
1238{
1239 return -EINVAL;
1240}
1241
1242static inline int security_setprocattr(const char *lsm, char *name,
1243 void *value, size_t size)
1244{
1245 return -EINVAL;
1246}
1247
1248static inline int security_netlink_send(struct sock *sk, struct sk_buff *skb)
1249{
1250 return 0;
1251}
1252
1253static inline int security_ismaclabel(const char *name)
1254{
1255 return 0;
1256}
1257
1258static inline int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen)
1259{
1260 return -EOPNOTSUPP;
1261}
1262
1263static inline int security_secctx_to_secid(const char *secdata,
1264 u32 seclen,
1265 u32 *secid)
1266{
1267 return -EOPNOTSUPP;
1268}
1269
1270static inline void security_release_secctx(char *secdata, u32 seclen)
1271{
1272}
1273
1274static inline void security_inode_invalidate_secctx(struct inode *inode)
1275{
1276}
1277
1278static inline int security_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen)
1279{
1280 return -EOPNOTSUPP;
1281}
1282static inline int security_inode_setsecctx(struct dentry *dentry, void *ctx, u32 ctxlen)
1283{
1284 return -EOPNOTSUPP;
1285}
1286static inline int security_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen)
1287{
1288 return -EOPNOTSUPP;
1289}
1290static inline int security_locked_down(enum lockdown_reason what)
1291{
1292 return 0;
1293}
1294#endif
1295
1296#if defined(CONFIG_SECURITY) && defined(CONFIG_WATCH_QUEUE)
1297int security_post_notification(const struct cred *w_cred,
1298 const struct cred *cred,
1299 struct watch_notification *n);
1300#else
1301static inline int security_post_notification(const struct cred *w_cred,
1302 const struct cred *cred,
1303 struct watch_notification *n)
1304{
1305 return 0;
1306}
1307#endif
1308
1309#if defined(CONFIG_SECURITY) && defined(CONFIG_KEY_NOTIFICATIONS)
1310int security_watch_key(struct key *key);
1311#else
1312static inline int security_watch_key(struct key *key)
1313{
1314 return 0;
1315}
1316#endif
1317
1318#ifdef CONFIG_SECURITY_NETWORK
1319
1320int security_unix_stream_connect(struct sock *sock, struct sock *other, struct sock *newsk);
1321int security_unix_may_send(struct socket *sock, struct socket *other);
1322int security_socket_create(int family, int type, int protocol, int kern);
1323int security_socket_post_create(struct socket *sock, int family,
1324 int type, int protocol, int kern);
1325int security_socket_socketpair(struct socket *socka, struct socket *sockb);
1326int security_socket_bind(struct socket *sock, struct sockaddr *address, int addrlen);
1327int security_socket_connect(struct socket *sock, struct sockaddr *address, int addrlen);
1328int security_socket_listen(struct socket *sock, int backlog);
1329int security_socket_accept(struct socket *sock, struct socket *newsock);
1330int security_socket_sendmsg(struct socket *sock, struct msghdr *msg, int size);
1331int security_socket_recvmsg(struct socket *sock, struct msghdr *msg,
1332 int size, int flags);
1333int security_socket_getsockname(struct socket *sock);
1334int security_socket_getpeername(struct socket *sock);
1335int security_socket_getsockopt(struct socket *sock, int level, int optname);
1336int security_socket_setsockopt(struct socket *sock, int level, int optname);
1337int security_socket_shutdown(struct socket *sock, int how);
1338int security_sock_rcv_skb(struct sock *sk, struct sk_buff *skb);
1339int security_socket_getpeersec_stream(struct socket *sock, char __user *optval,
1340 int __user *optlen, unsigned len);
1341int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid);
1342int security_sk_alloc(struct sock *sk, int family, gfp_t priority);
1343void security_sk_free(struct sock *sk);
1344void security_sk_clone(const struct sock *sk, struct sock *newsk);
1345void security_sk_classify_flow(struct sock *sk, struct flowi *fl);
1346void security_req_classify_flow(const struct request_sock *req, struct flowi *fl);
1347void security_sock_graft(struct sock*sk, struct socket *parent);
1348int security_inet_conn_request(struct sock *sk,
1349 struct sk_buff *skb, struct request_sock *req);
1350void security_inet_csk_clone(struct sock *newsk,
1351 const struct request_sock *req);
1352void security_inet_conn_established(struct sock *sk,
1353 struct sk_buff *skb);
1354int security_secmark_relabel_packet(u32 secid);
1355void security_secmark_refcount_inc(void);
1356void security_secmark_refcount_dec(void);
1357int security_tun_dev_alloc_security(void **security);
1358void security_tun_dev_free_security(void *security);
1359int security_tun_dev_create(void);
1360int security_tun_dev_attach_queue(void *security);
1361int security_tun_dev_attach(struct sock *sk, void *security);
1362int security_tun_dev_open(void *security);
1363int security_sctp_assoc_request(struct sctp_endpoint *ep, struct sk_buff *skb);
1364int security_sctp_bind_connect(struct sock *sk, int optname,
1365 struct sockaddr *address, int addrlen);
1366void security_sctp_sk_clone(struct sctp_endpoint *ep, struct sock *sk,
1367 struct sock *newsk);
1368
1369#else
1370static inline int security_unix_stream_connect(struct sock *sock,
1371 struct sock *other,
1372 struct sock *newsk)
1373{
1374 return 0;
1375}
1376
1377static inline int security_unix_may_send(struct socket *sock,
1378 struct socket *other)
1379{
1380 return 0;
1381}
1382
1383static inline int security_socket_create(int family, int type,
1384 int protocol, int kern)
1385{
1386 return 0;
1387}
1388
1389static inline int security_socket_post_create(struct socket *sock,
1390 int family,
1391 int type,
1392 int protocol, int kern)
1393{
1394 return 0;
1395}
1396
1397static inline int security_socket_socketpair(struct socket *socka,
1398 struct socket *sockb)
1399{
1400 return 0;
1401}
1402
1403static inline int security_socket_bind(struct socket *sock,
1404 struct sockaddr *address,
1405 int addrlen)
1406{
1407 return 0;
1408}
1409
1410static inline int security_socket_connect(struct socket *sock,
1411 struct sockaddr *address,
1412 int addrlen)
1413{
1414 return 0;
1415}
1416
1417static inline int security_socket_listen(struct socket *sock, int backlog)
1418{
1419 return 0;
1420}
1421
1422static inline int security_socket_accept(struct socket *sock,
1423 struct socket *newsock)
1424{
1425 return 0;
1426}
1427
1428static inline int security_socket_sendmsg(struct socket *sock,
1429 struct msghdr *msg, int size)
1430{
1431 return 0;
1432}
1433
1434static inline int security_socket_recvmsg(struct socket *sock,
1435 struct msghdr *msg, int size,
1436 int flags)
1437{
1438 return 0;
1439}
1440
1441static inline int security_socket_getsockname(struct socket *sock)
1442{
1443 return 0;
1444}
1445
1446static inline int security_socket_getpeername(struct socket *sock)
1447{
1448 return 0;
1449}
1450
1451static inline int security_socket_getsockopt(struct socket *sock,
1452 int level, int optname)
1453{
1454 return 0;
1455}
1456
1457static inline int security_socket_setsockopt(struct socket *sock,
1458 int level, int optname)
1459{
1460 return 0;
1461}
1462
1463static inline int security_socket_shutdown(struct socket *sock, int how)
1464{
1465 return 0;
1466}
1467static inline int security_sock_rcv_skb(struct sock *sk,
1468 struct sk_buff *skb)
1469{
1470 return 0;
1471}
1472
1473static inline int security_socket_getpeersec_stream(struct socket *sock, char __user *optval,
1474 int __user *optlen, unsigned len)
1475{
1476 return -ENOPROTOOPT;
1477}
1478
1479static inline int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid)
1480{
1481 return -ENOPROTOOPT;
1482}
1483
1484static inline int security_sk_alloc(struct sock *sk, int family, gfp_t priority)
1485{
1486 return 0;
1487}
1488
1489static inline void security_sk_free(struct sock *sk)
1490{
1491}
1492
1493static inline void security_sk_clone(const struct sock *sk, struct sock *newsk)
1494{
1495}
1496
1497static inline void security_sk_classify_flow(struct sock *sk, struct flowi *fl)
1498{
1499}
1500
1501static inline void security_req_classify_flow(const struct request_sock *req, struct flowi *fl)
1502{
1503}
1504
1505static inline void security_sock_graft(struct sock *sk, struct socket *parent)
1506{
1507}
1508
1509static inline int security_inet_conn_request(struct sock *sk,
1510 struct sk_buff *skb, struct request_sock *req)
1511{
1512 return 0;
1513}
1514
1515static inline void security_inet_csk_clone(struct sock *newsk,
1516 const struct request_sock *req)
1517{
1518}
1519
1520static inline void security_inet_conn_established(struct sock *sk,
1521 struct sk_buff *skb)
1522{
1523}
1524
1525static inline int security_secmark_relabel_packet(u32 secid)
1526{
1527 return 0;
1528}
1529
1530static inline void security_secmark_refcount_inc(void)
1531{
1532}
1533
1534static inline void security_secmark_refcount_dec(void)
1535{
1536}
1537
1538static inline int security_tun_dev_alloc_security(void **security)
1539{
1540 return 0;
1541}
1542
1543static inline void security_tun_dev_free_security(void *security)
1544{
1545}
1546
1547static inline int security_tun_dev_create(void)
1548{
1549 return 0;
1550}
1551
1552static inline int security_tun_dev_attach_queue(void *security)
1553{
1554 return 0;
1555}
1556
1557static inline int security_tun_dev_attach(struct sock *sk, void *security)
1558{
1559 return 0;
1560}
1561
1562static inline int security_tun_dev_open(void *security)
1563{
1564 return 0;
1565}
1566
1567static inline int security_sctp_assoc_request(struct sctp_endpoint *ep,
1568 struct sk_buff *skb)
1569{
1570 return 0;
1571}
1572
1573static inline int security_sctp_bind_connect(struct sock *sk, int optname,
1574 struct sockaddr *address,
1575 int addrlen)
1576{
1577 return 0;
1578}
1579
1580static inline void security_sctp_sk_clone(struct sctp_endpoint *ep,
1581 struct sock *sk,
1582 struct sock *newsk)
1583{
1584}
1585#endif
1586
1587#ifdef CONFIG_SECURITY_INFINIBAND
1588int security_ib_pkey_access(void *sec, u64 subnet_prefix, u16 pkey);
1589int security_ib_endport_manage_subnet(void *sec, const char *name, u8 port_num);
1590int security_ib_alloc_security(void **sec);
1591void security_ib_free_security(void *sec);
1592#else
1593static inline int security_ib_pkey_access(void *sec, u64 subnet_prefix, u16 pkey)
1594{
1595 return 0;
1596}
1597
1598static inline int security_ib_endport_manage_subnet(void *sec, const char *dev_name, u8 port_num)
1599{
1600 return 0;
1601}
1602
1603static inline int security_ib_alloc_security(void **sec)
1604{
1605 return 0;
1606}
1607
1608static inline void security_ib_free_security(void *sec)
1609{
1610}
1611#endif
1612
1613#ifdef CONFIG_SECURITY_NETWORK_XFRM
1614
1615int security_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp,
1616 struct xfrm_user_sec_ctx *sec_ctx, gfp_t gfp);
1617int security_xfrm_policy_clone(struct xfrm_sec_ctx *old_ctx, struct xfrm_sec_ctx **new_ctxp);
1618void security_xfrm_policy_free(struct xfrm_sec_ctx *ctx);
1619int security_xfrm_policy_delete(struct xfrm_sec_ctx *ctx);
1620int security_xfrm_state_alloc(struct xfrm_state *x, struct xfrm_user_sec_ctx *sec_ctx);
1621int security_xfrm_state_alloc_acquire(struct xfrm_state *x,
1622 struct xfrm_sec_ctx *polsec, u32 secid);
1623int security_xfrm_state_delete(struct xfrm_state *x);
1624void security_xfrm_state_free(struct xfrm_state *x);
1625int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir);
1626int security_xfrm_state_pol_flow_match(struct xfrm_state *x,
1627 struct xfrm_policy *xp,
1628 const struct flowi *fl);
1629int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid);
1630void security_skb_classify_flow(struct sk_buff *skb, struct flowi *fl);
1631
1632#else
1633
1634static inline int security_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp,
1635 struct xfrm_user_sec_ctx *sec_ctx,
1636 gfp_t gfp)
1637{
1638 return 0;
1639}
1640
1641static inline int security_xfrm_policy_clone(struct xfrm_sec_ctx *old, struct xfrm_sec_ctx **new_ctxp)
1642{
1643 return 0;
1644}
1645
1646static inline void security_xfrm_policy_free(struct xfrm_sec_ctx *ctx)
1647{
1648}
1649
1650static inline int security_xfrm_policy_delete(struct xfrm_sec_ctx *ctx)
1651{
1652 return 0;
1653}
1654
1655static inline int security_xfrm_state_alloc(struct xfrm_state *x,
1656 struct xfrm_user_sec_ctx *sec_ctx)
1657{
1658 return 0;
1659}
1660
1661static inline int security_xfrm_state_alloc_acquire(struct xfrm_state *x,
1662 struct xfrm_sec_ctx *polsec, u32 secid)
1663{
1664 return 0;
1665}
1666
1667static inline void security_xfrm_state_free(struct xfrm_state *x)
1668{
1669}
1670
1671static inline int security_xfrm_state_delete(struct xfrm_state *x)
1672{
1673 return 0;
1674}
1675
1676static inline int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir)
1677{
1678 return 0;
1679}
1680
1681static inline int security_xfrm_state_pol_flow_match(struct xfrm_state *x,
1682 struct xfrm_policy *xp, const struct flowi *fl)
1683{
1684 return 1;
1685}
1686
1687static inline int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid)
1688{
1689 return 0;
1690}
1691
1692static inline void security_skb_classify_flow(struct sk_buff *skb, struct flowi *fl)
1693{
1694}
1695
1696#endif
1697
1698#ifdef CONFIG_SECURITY_PATH
1699int security_path_unlink(const struct path *dir, struct dentry *dentry);
1700int security_path_mkdir(const struct path *dir, struct dentry *dentry, umode_t mode);
1701int security_path_rmdir(const struct path *dir, struct dentry *dentry);
1702int security_path_mknod(const struct path *dir, struct dentry *dentry, umode_t mode,
1703 unsigned int dev);
1704int security_path_truncate(const struct path *path);
1705int security_path_symlink(const struct path *dir, struct dentry *dentry,
1706 const char *old_name);
1707int security_path_link(struct dentry *old_dentry, const struct path *new_dir,
1708 struct dentry *new_dentry);
1709int security_path_rename(const struct path *old_dir, struct dentry *old_dentry,
1710 const struct path *new_dir, struct dentry *new_dentry,
1711 unsigned int flags);
1712int security_path_chmod(const struct path *path, umode_t mode);
1713int security_path_chown(const struct path *path, kuid_t uid, kgid_t gid);
1714int security_path_chroot(const struct path *path);
1715#else
1716static inline int security_path_unlink(const struct path *dir, struct dentry *dentry)
1717{
1718 return 0;
1719}
1720
1721static inline int security_path_mkdir(const struct path *dir, struct dentry *dentry,
1722 umode_t mode)
1723{
1724 return 0;
1725}
1726
1727static inline int security_path_rmdir(const struct path *dir, struct dentry *dentry)
1728{
1729 return 0;
1730}
1731
1732static inline int security_path_mknod(const struct path *dir, struct dentry *dentry,
1733 umode_t mode, unsigned int dev)
1734{
1735 return 0;
1736}
1737
1738static inline int security_path_truncate(const struct path *path)
1739{
1740 return 0;
1741}
1742
1743static inline int security_path_symlink(const struct path *dir, struct dentry *dentry,
1744 const char *old_name)
1745{
1746 return 0;
1747}
1748
1749static inline int security_path_link(struct dentry *old_dentry,
1750 const struct path *new_dir,
1751 struct dentry *new_dentry)
1752{
1753 return 0;
1754}
1755
1756static inline int security_path_rename(const struct path *old_dir,
1757 struct dentry *old_dentry,
1758 const struct path *new_dir,
1759 struct dentry *new_dentry,
1760 unsigned int flags)
1761{
1762 return 0;
1763}
1764
1765static inline int security_path_chmod(const struct path *path, umode_t mode)
1766{
1767 return 0;
1768}
1769
1770static inline int security_path_chown(const struct path *path, kuid_t uid, kgid_t gid)
1771{
1772 return 0;
1773}
1774
1775static inline int security_path_chroot(const struct path *path)
1776{
1777 return 0;
1778}
1779#endif
1780
1781#ifdef CONFIG_KEYS
1782#ifdef CONFIG_SECURITY
1783
1784int security_key_alloc(struct key *key, const struct cred *cred, unsigned long flags);
1785void security_key_free(struct key *key);
1786int security_key_permission(key_ref_t key_ref, const struct cred *cred,
1787 enum key_need_perm need_perm);
1788int security_key_getsecurity(struct key *key, char **_buffer);
1789
1790#else
1791
1792static inline int security_key_alloc(struct key *key,
1793 const struct cred *cred,
1794 unsigned long flags)
1795{
1796 return 0;
1797}
1798
1799static inline void security_key_free(struct key *key)
1800{
1801}
1802
1803static inline int security_key_permission(key_ref_t key_ref,
1804 const struct cred *cred,
1805 enum key_need_perm need_perm)
1806{
1807 return 0;
1808}
1809
1810static inline int security_key_getsecurity(struct key *key, char **_buffer)
1811{
1812 *_buffer = NULL;
1813 return 0;
1814}
1815
1816#endif
1817#endif
1818
1819#ifdef CONFIG_AUDIT
1820#ifdef CONFIG_SECURITY
1821int security_audit_rule_init(u32 field, u32 op, char *rulestr, void **lsmrule);
1822int security_audit_rule_known(struct audit_krule *krule);
1823int security_audit_rule_match(u32 secid, u32 field, u32 op, void *lsmrule);
1824void security_audit_rule_free(void *lsmrule);
1825
1826#else
1827
1828static inline int security_audit_rule_init(u32 field, u32 op, char *rulestr,
1829 void **lsmrule)
1830{
1831 return 0;
1832}
1833
1834static inline int security_audit_rule_known(struct audit_krule *krule)
1835{
1836 return 0;
1837}
1838
1839static inline int security_audit_rule_match(u32 secid, u32 field, u32 op,
1840 void *lsmrule)
1841{
1842 return 0;
1843}
1844
1845static inline void security_audit_rule_free(void *lsmrule)
1846{ }
1847
1848#endif
1849#endif
1850
1851#ifdef CONFIG_SECURITYFS
1852
1853extern struct dentry *securityfs_create_file(const char *name, umode_t mode,
1854 struct dentry *parent, void *data,
1855 const struct file_operations *fops);
1856extern struct dentry *securityfs_create_dir(const char *name, struct dentry *parent);
1857struct dentry *securityfs_create_symlink(const char *name,
1858 struct dentry *parent,
1859 const char *target,
1860 const struct inode_operations *iops);
1861extern void securityfs_remove(struct dentry *dentry);
1862
1863#else
1864
1865static inline struct dentry *securityfs_create_dir(const char *name,
1866 struct dentry *parent)
1867{
1868 return ERR_PTR(-ENODEV);
1869}
1870
1871static inline struct dentry *securityfs_create_file(const char *name,
1872 umode_t mode,
1873 struct dentry *parent,
1874 void *data,
1875 const struct file_operations *fops)
1876{
1877 return ERR_PTR(-ENODEV);
1878}
1879
1880static inline struct dentry *securityfs_create_symlink(const char *name,
1881 struct dentry *parent,
1882 const char *target,
1883 const struct inode_operations *iops)
1884{
1885 return ERR_PTR(-ENODEV);
1886}
1887
1888static inline void securityfs_remove(struct dentry *dentry)
1889{}
1890
1891#endif
1892
1893#ifdef CONFIG_BPF_SYSCALL
1894union bpf_attr;
1895struct bpf_map;
1896struct bpf_prog;
1897struct bpf_prog_aux;
1898#ifdef CONFIG_SECURITY
1899extern int security_bpf(int cmd, union bpf_attr *attr, unsigned int size);
1900extern int security_bpf_map(struct bpf_map *map, fmode_t fmode);
1901extern int security_bpf_prog(struct bpf_prog *prog);
1902extern int security_bpf_map_alloc(struct bpf_map *map);
1903extern void security_bpf_map_free(struct bpf_map *map);
1904extern int security_bpf_prog_alloc(struct bpf_prog_aux *aux);
1905extern void security_bpf_prog_free(struct bpf_prog_aux *aux);
1906#else
1907static inline int security_bpf(int cmd, union bpf_attr *attr,
1908 unsigned int size)
1909{
1910 return 0;
1911}
1912
1913static inline int security_bpf_map(struct bpf_map *map, fmode_t fmode)
1914{
1915 return 0;
1916}
1917
1918static inline int security_bpf_prog(struct bpf_prog *prog)
1919{
1920 return 0;
1921}
1922
1923static inline int security_bpf_map_alloc(struct bpf_map *map)
1924{
1925 return 0;
1926}
1927
1928static inline void security_bpf_map_free(struct bpf_map *map)
1929{ }
1930
1931static inline int security_bpf_prog_alloc(struct bpf_prog_aux *aux)
1932{
1933 return 0;
1934}
1935
1936static inline void security_bpf_prog_free(struct bpf_prog_aux *aux)
1937{ }
1938#endif
1939#endif
1940
1941#ifdef CONFIG_PERF_EVENTS
1942struct perf_event_attr;
1943struct perf_event;
1944
1945#ifdef CONFIG_SECURITY
1946extern int security_perf_event_open(struct perf_event_attr *attr, int type);
1947extern int security_perf_event_alloc(struct perf_event *event);
1948extern void security_perf_event_free(struct perf_event *event);
1949extern int security_perf_event_read(struct perf_event *event);
1950extern int security_perf_event_write(struct perf_event *event);
1951#else
1952static inline int security_perf_event_open(struct perf_event_attr *attr,
1953 int type)
1954{
1955 return 0;
1956}
1957
1958static inline int security_perf_event_alloc(struct perf_event *event)
1959{
1960 return 0;
1961}
1962
1963static inline void security_perf_event_free(struct perf_event *event)
1964{
1965}
1966
1967static inline int security_perf_event_read(struct perf_event *event)
1968{
1969 return 0;
1970}
1971
1972static inline int security_perf_event_write(struct perf_event *event)
1973{
1974 return 0;
1975}
1976#endif
1977#endif
1978
1979#endif
1980
