1 /*
2 * Capabilities Linux Security Module
3 *
4 * This is the default security module in case no other module is loaded.
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 *
11 */
12
13 #include <linux/security.h>
14
cap_binder_set_context_mgr(struct task_struct * mgr)15 static int cap_binder_set_context_mgr(struct task_struct *mgr)
16 {
17 return 0;
18 }
19
cap_binder_transaction(struct task_struct * from,struct task_struct * to)20 static int cap_binder_transaction(struct task_struct *from, struct task_struct *to)
21 {
22 return 0;
23 }
24
cap_binder_transfer_binder(struct task_struct * from,struct task_struct * to)25 static int cap_binder_transfer_binder(struct task_struct *from, struct task_struct *to)
26 {
27 return 0;
28 }
29
cap_binder_transfer_file(struct task_struct * from,struct task_struct * to,struct file * file)30 static int cap_binder_transfer_file(struct task_struct *from, struct task_struct *to, struct file *file)
31 {
32 return 0;
33 }
34
cap_syslog(int type)35 static int cap_syslog(int type)
36 {
37 return 0;
38 }
39
cap_quotactl(int cmds,int type,int id,struct super_block * sb)40 static int cap_quotactl(int cmds, int type, int id, struct super_block *sb)
41 {
42 return 0;
43 }
44
cap_quota_on(struct dentry * dentry)45 static int cap_quota_on(struct dentry *dentry)
46 {
47 return 0;
48 }
49
cap_bprm_check_security(struct linux_binprm * bprm)50 static int cap_bprm_check_security(struct linux_binprm *bprm)
51 {
52 return 0;
53 }
54
cap_bprm_committing_creds(struct linux_binprm * bprm)55 static void cap_bprm_committing_creds(struct linux_binprm *bprm)
56 {
57 }
58
cap_bprm_committed_creds(struct linux_binprm * bprm)59 static void cap_bprm_committed_creds(struct linux_binprm *bprm)
60 {
61 }
62
cap_sb_alloc_security(struct super_block * sb)63 static int cap_sb_alloc_security(struct super_block *sb)
64 {
65 return 0;
66 }
67
cap_sb_free_security(struct super_block * sb)68 static void cap_sb_free_security(struct super_block *sb)
69 {
70 }
71
cap_sb_copy_data(char * orig,char * copy)72 static int cap_sb_copy_data(char *orig, char *copy)
73 {
74 return 0;
75 }
76
cap_sb_remount(struct super_block * sb,void * data)77 static int cap_sb_remount(struct super_block *sb, void *data)
78 {
79 return 0;
80 }
81
cap_sb_kern_mount(struct super_block * sb,int flags,void * data)82 static int cap_sb_kern_mount(struct super_block *sb, int flags, void *data)
83 {
84 return 0;
85 }
86
cap_sb_show_options(struct seq_file * m,struct super_block * sb)87 static int cap_sb_show_options(struct seq_file *m, struct super_block *sb)
88 {
89 return 0;
90 }
91
cap_sb_statfs(struct dentry * dentry)92 static int cap_sb_statfs(struct dentry *dentry)
93 {
94 return 0;
95 }
96
cap_sb_mount(const char * dev_name,struct path * path,const char * type,unsigned long flags,void * data)97 static int cap_sb_mount(const char *dev_name, struct path *path,
98 const char *type, unsigned long flags, void *data)
99 {
100 return 0;
101 }
102
cap_sb_umount(struct vfsmount * mnt,int flags)103 static int cap_sb_umount(struct vfsmount *mnt, int flags)
104 {
105 return 0;
106 }
107
cap_sb_pivotroot(struct path * old_path,struct path * new_path)108 static int cap_sb_pivotroot(struct path *old_path, struct path *new_path)
109 {
110 return 0;
111 }
112
cap_sb_set_mnt_opts(struct super_block * sb,struct security_mnt_opts * opts,unsigned long kern_flags,unsigned long * set_kern_flags)113 static int cap_sb_set_mnt_opts(struct super_block *sb,
114 struct security_mnt_opts *opts,
115 unsigned long kern_flags,
116 unsigned long *set_kern_flags)
117
118 {
119 if (unlikely(opts->num_mnt_opts))
120 return -EOPNOTSUPP;
121 return 0;
122 }
123
cap_sb_clone_mnt_opts(const struct super_block * oldsb,struct super_block * newsb)124 static int cap_sb_clone_mnt_opts(const struct super_block *oldsb,
125 struct super_block *newsb)
126 {
127 return 0;
128 }
129
cap_sb_parse_opts_str(char * options,struct security_mnt_opts * opts)130 static int cap_sb_parse_opts_str(char *options, struct security_mnt_opts *opts)
131 {
132 return 0;
133 }
134
cap_dentry_init_security(struct dentry * dentry,int mode,struct qstr * name,void ** ctx,u32 * ctxlen)135 static int cap_dentry_init_security(struct dentry *dentry, int mode,
136 struct qstr *name, void **ctx,
137 u32 *ctxlen)
138 {
139 return -EOPNOTSUPP;
140 }
141
cap_inode_alloc_security(struct inode * inode)142 static int cap_inode_alloc_security(struct inode *inode)
143 {
144 return 0;
145 }
146
cap_inode_free_security(struct inode * inode)147 static void cap_inode_free_security(struct inode *inode)
148 {
149 }
150
cap_inode_init_security(struct inode * inode,struct inode * dir,const struct qstr * qstr,const char ** name,void ** value,size_t * len)151 static int cap_inode_init_security(struct inode *inode, struct inode *dir,
152 const struct qstr *qstr, const char **name,
153 void **value, size_t *len)
154 {
155 return -EOPNOTSUPP;
156 }
157
cap_inode_create(struct inode * inode,struct dentry * dentry,umode_t mask)158 static int cap_inode_create(struct inode *inode, struct dentry *dentry,
159 umode_t mask)
160 {
161 return 0;
162 }
163
cap_inode_link(struct dentry * old_dentry,struct inode * inode,struct dentry * new_dentry)164 static int cap_inode_link(struct dentry *old_dentry, struct inode *inode,
165 struct dentry *new_dentry)
166 {
167 return 0;
168 }
169
cap_inode_unlink(struct inode * inode,struct dentry * dentry)170 static int cap_inode_unlink(struct inode *inode, struct dentry *dentry)
171 {
172 return 0;
173 }
174
cap_inode_symlink(struct inode * inode,struct dentry * dentry,const char * name)175 static int cap_inode_symlink(struct inode *inode, struct dentry *dentry,
176 const char *name)
177 {
178 return 0;
179 }
180
cap_inode_mkdir(struct inode * inode,struct dentry * dentry,umode_t mask)181 static int cap_inode_mkdir(struct inode *inode, struct dentry *dentry,
182 umode_t mask)
183 {
184 return 0;
185 }
186
cap_inode_rmdir(struct inode * inode,struct dentry * dentry)187 static int cap_inode_rmdir(struct inode *inode, struct dentry *dentry)
188 {
189 return 0;
190 }
191
cap_inode_mknod(struct inode * inode,struct dentry * dentry,umode_t mode,dev_t dev)192 static int cap_inode_mknod(struct inode *inode, struct dentry *dentry,
193 umode_t mode, dev_t dev)
194 {
195 return 0;
196 }
197
cap_inode_rename(struct inode * old_inode,struct dentry * old_dentry,struct inode * new_inode,struct dentry * new_dentry)198 static int cap_inode_rename(struct inode *old_inode, struct dentry *old_dentry,
199 struct inode *new_inode, struct dentry *new_dentry)
200 {
201 return 0;
202 }
203
cap_inode_readlink(struct dentry * dentry)204 static int cap_inode_readlink(struct dentry *dentry)
205 {
206 return 0;
207 }
208
cap_inode_follow_link(struct dentry * dentry,struct nameidata * nameidata)209 static int cap_inode_follow_link(struct dentry *dentry,
210 struct nameidata *nameidata)
211 {
212 return 0;
213 }
214
cap_inode_permission(struct inode * inode,int mask)215 static int cap_inode_permission(struct inode *inode, int mask)
216 {
217 return 0;
218 }
219
cap_inode_setattr(struct dentry * dentry,struct iattr * iattr)220 static int cap_inode_setattr(struct dentry *dentry, struct iattr *iattr)
221 {
222 return 0;
223 }
224
cap_inode_getattr(struct vfsmount * mnt,struct dentry * dentry)225 static int cap_inode_getattr(struct vfsmount *mnt, struct dentry *dentry)
226 {
227 return 0;
228 }
229
cap_inode_post_setxattr(struct dentry * dentry,const char * name,const void * value,size_t size,int flags)230 static void cap_inode_post_setxattr(struct dentry *dentry, const char *name,
231 const void *value, size_t size, int flags)
232 {
233 }
234
cap_inode_getxattr(struct dentry * dentry,const char * name)235 static int cap_inode_getxattr(struct dentry *dentry, const char *name)
236 {
237 return 0;
238 }
239
cap_inode_listxattr(struct dentry * dentry)240 static int cap_inode_listxattr(struct dentry *dentry)
241 {
242 return 0;
243 }
244
cap_inode_getsecurity(const struct inode * inode,const char * name,void ** buffer,bool alloc)245 static int cap_inode_getsecurity(const struct inode *inode, const char *name,
246 void **buffer, bool alloc)
247 {
248 return -EOPNOTSUPP;
249 }
250
cap_inode_setsecurity(struct inode * inode,const char * name,const void * value,size_t size,int flags)251 static int cap_inode_setsecurity(struct inode *inode, const char *name,
252 const void *value, size_t size, int flags)
253 {
254 return -EOPNOTSUPP;
255 }
256
cap_inode_listsecurity(struct inode * inode,char * buffer,size_t buffer_size)257 static int cap_inode_listsecurity(struct inode *inode, char *buffer,
258 size_t buffer_size)
259 {
260 return 0;
261 }
262
cap_inode_getsecid(const struct inode * inode,u32 * secid)263 static void cap_inode_getsecid(const struct inode *inode, u32 *secid)
264 {
265 *secid = 0;
266 }
267
268 #ifdef CONFIG_SECURITY_PATH
cap_path_mknod(struct path * dir,struct dentry * dentry,umode_t mode,unsigned int dev)269 static int cap_path_mknod(struct path *dir, struct dentry *dentry, umode_t mode,
270 unsigned int dev)
271 {
272 return 0;
273 }
274
cap_path_mkdir(struct path * dir,struct dentry * dentry,umode_t mode)275 static int cap_path_mkdir(struct path *dir, struct dentry *dentry, umode_t mode)
276 {
277 return 0;
278 }
279
cap_path_rmdir(struct path * dir,struct dentry * dentry)280 static int cap_path_rmdir(struct path *dir, struct dentry *dentry)
281 {
282 return 0;
283 }
284
cap_path_unlink(struct path * dir,struct dentry * dentry)285 static int cap_path_unlink(struct path *dir, struct dentry *dentry)
286 {
287 return 0;
288 }
289
cap_path_symlink(struct path * dir,struct dentry * dentry,const char * old_name)290 static int cap_path_symlink(struct path *dir, struct dentry *dentry,
291 const char *old_name)
292 {
293 return 0;
294 }
295
cap_path_link(struct dentry * old_dentry,struct path * new_dir,struct dentry * new_dentry)296 static int cap_path_link(struct dentry *old_dentry, struct path *new_dir,
297 struct dentry *new_dentry)
298 {
299 return 0;
300 }
301
cap_path_rename(struct path * old_path,struct dentry * old_dentry,struct path * new_path,struct dentry * new_dentry)302 static int cap_path_rename(struct path *old_path, struct dentry *old_dentry,
303 struct path *new_path, struct dentry *new_dentry)
304 {
305 return 0;
306 }
307
cap_path_truncate(struct path * path)308 static int cap_path_truncate(struct path *path)
309 {
310 return 0;
311 }
312
cap_path_chmod(struct path * path,umode_t mode)313 static int cap_path_chmod(struct path *path, umode_t mode)
314 {
315 return 0;
316 }
317
cap_path_chown(struct path * path,kuid_t uid,kgid_t gid)318 static int cap_path_chown(struct path *path, kuid_t uid, kgid_t gid)
319 {
320 return 0;
321 }
322
cap_path_chroot(struct path * root)323 static int cap_path_chroot(struct path *root)
324 {
325 return 0;
326 }
327 #endif
328
cap_file_permission(struct file * file,int mask)329 static int cap_file_permission(struct file *file, int mask)
330 {
331 return 0;
332 }
333
cap_file_alloc_security(struct file * file)334 static int cap_file_alloc_security(struct file *file)
335 {
336 return 0;
337 }
338
cap_file_free_security(struct file * file)339 static void cap_file_free_security(struct file *file)
340 {
341 }
342
cap_file_ioctl(struct file * file,unsigned int command,unsigned long arg)343 static int cap_file_ioctl(struct file *file, unsigned int command,
344 unsigned long arg)
345 {
346 return 0;
347 }
348
cap_file_mprotect(struct vm_area_struct * vma,unsigned long reqprot,unsigned long prot)349 static int cap_file_mprotect(struct vm_area_struct *vma, unsigned long reqprot,
350 unsigned long prot)
351 {
352 return 0;
353 }
354
cap_file_lock(struct file * file,unsigned int cmd)355 static int cap_file_lock(struct file *file, unsigned int cmd)
356 {
357 return 0;
358 }
359
cap_file_fcntl(struct file * file,unsigned int cmd,unsigned long arg)360 static int cap_file_fcntl(struct file *file, unsigned int cmd,
361 unsigned long arg)
362 {
363 return 0;
364 }
365
cap_file_set_fowner(struct file * file)366 static void cap_file_set_fowner(struct file *file)
367 {
368 return;
369 }
370
cap_file_send_sigiotask(struct task_struct * tsk,struct fown_struct * fown,int sig)371 static int cap_file_send_sigiotask(struct task_struct *tsk,
372 struct fown_struct *fown, int sig)
373 {
374 return 0;
375 }
376
cap_file_receive(struct file * file)377 static int cap_file_receive(struct file *file)
378 {
379 return 0;
380 }
381
cap_file_open(struct file * file,const struct cred * cred)382 static int cap_file_open(struct file *file, const struct cred *cred)
383 {
384 return 0;
385 }
386
cap_task_create(unsigned long clone_flags)387 static int cap_task_create(unsigned long clone_flags)
388 {
389 return 0;
390 }
391
cap_task_free(struct task_struct * task)392 static void cap_task_free(struct task_struct *task)
393 {
394 }
395
cap_cred_alloc_blank(struct cred * cred,gfp_t gfp)396 static int cap_cred_alloc_blank(struct cred *cred, gfp_t gfp)
397 {
398 return 0;
399 }
400
cap_cred_free(struct cred * cred)401 static void cap_cred_free(struct cred *cred)
402 {
403 }
404
cap_cred_prepare(struct cred * new,const struct cred * old,gfp_t gfp)405 static int cap_cred_prepare(struct cred *new, const struct cred *old, gfp_t gfp)
406 {
407 return 0;
408 }
409
cap_cred_transfer(struct cred * new,const struct cred * old)410 static void cap_cred_transfer(struct cred *new, const struct cred *old)
411 {
412 }
413
cap_kernel_act_as(struct cred * new,u32 secid)414 static int cap_kernel_act_as(struct cred *new, u32 secid)
415 {
416 return 0;
417 }
418
cap_kernel_create_files_as(struct cred * new,struct inode * inode)419 static int cap_kernel_create_files_as(struct cred *new, struct inode *inode)
420 {
421 return 0;
422 }
423
cap_kernel_fw_from_file(struct file * file,char * buf,size_t size)424 static int cap_kernel_fw_from_file(struct file *file, char *buf, size_t size)
425 {
426 return 0;
427 }
428
cap_kernel_module_request(char * kmod_name)429 static int cap_kernel_module_request(char *kmod_name)
430 {
431 return 0;
432 }
433
cap_kernel_module_from_file(struct file * file)434 static int cap_kernel_module_from_file(struct file *file)
435 {
436 return 0;
437 }
438
cap_task_setpgid(struct task_struct * p,pid_t pgid)439 static int cap_task_setpgid(struct task_struct *p, pid_t pgid)
440 {
441 return 0;
442 }
443
cap_task_getpgid(struct task_struct * p)444 static int cap_task_getpgid(struct task_struct *p)
445 {
446 return 0;
447 }
448
cap_task_getsid(struct task_struct * p)449 static int cap_task_getsid(struct task_struct *p)
450 {
451 return 0;
452 }
453
cap_task_getsecid(struct task_struct * p,u32 * secid)454 static void cap_task_getsecid(struct task_struct *p, u32 *secid)
455 {
456 *secid = 0;
457 }
458
cap_task_getioprio(struct task_struct * p)459 static int cap_task_getioprio(struct task_struct *p)
460 {
461 return 0;
462 }
463
cap_task_setrlimit(struct task_struct * p,unsigned int resource,struct rlimit * new_rlim)464 static int cap_task_setrlimit(struct task_struct *p, unsigned int resource,
465 struct rlimit *new_rlim)
466 {
467 return 0;
468 }
469
cap_task_getscheduler(struct task_struct * p)470 static int cap_task_getscheduler(struct task_struct *p)
471 {
472 return 0;
473 }
474
cap_task_movememory(struct task_struct * p)475 static int cap_task_movememory(struct task_struct *p)
476 {
477 return 0;
478 }
479
cap_task_wait(struct task_struct * p)480 static int cap_task_wait(struct task_struct *p)
481 {
482 return 0;
483 }
484
cap_task_kill(struct task_struct * p,struct siginfo * info,int sig,u32 secid)485 static int cap_task_kill(struct task_struct *p, struct siginfo *info,
486 int sig, u32 secid)
487 {
488 return 0;
489 }
490
cap_task_to_inode(struct task_struct * p,struct inode * inode)491 static void cap_task_to_inode(struct task_struct *p, struct inode *inode)
492 {
493 }
494
cap_ipc_permission(struct kern_ipc_perm * ipcp,short flag)495 static int cap_ipc_permission(struct kern_ipc_perm *ipcp, short flag)
496 {
497 return 0;
498 }
499
cap_ipc_getsecid(struct kern_ipc_perm * ipcp,u32 * secid)500 static void cap_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid)
501 {
502 *secid = 0;
503 }
504
cap_msg_msg_alloc_security(struct msg_msg * msg)505 static int cap_msg_msg_alloc_security(struct msg_msg *msg)
506 {
507 return 0;
508 }
509
cap_msg_msg_free_security(struct msg_msg * msg)510 static void cap_msg_msg_free_security(struct msg_msg *msg)
511 {
512 }
513
cap_msg_queue_alloc_security(struct msg_queue * msq)514 static int cap_msg_queue_alloc_security(struct msg_queue *msq)
515 {
516 return 0;
517 }
518
cap_msg_queue_free_security(struct msg_queue * msq)519 static void cap_msg_queue_free_security(struct msg_queue *msq)
520 {
521 }
522
cap_msg_queue_associate(struct msg_queue * msq,int msqflg)523 static int cap_msg_queue_associate(struct msg_queue *msq, int msqflg)
524 {
525 return 0;
526 }
527
cap_msg_queue_msgctl(struct msg_queue * msq,int cmd)528 static int cap_msg_queue_msgctl(struct msg_queue *msq, int cmd)
529 {
530 return 0;
531 }
532
cap_msg_queue_msgsnd(struct msg_queue * msq,struct msg_msg * msg,int msgflg)533 static int cap_msg_queue_msgsnd(struct msg_queue *msq, struct msg_msg *msg,
534 int msgflg)
535 {
536 return 0;
537 }
538
cap_msg_queue_msgrcv(struct msg_queue * msq,struct msg_msg * msg,struct task_struct * target,long type,int mode)539 static int cap_msg_queue_msgrcv(struct msg_queue *msq, struct msg_msg *msg,
540 struct task_struct *target, long type, int mode)
541 {
542 return 0;
543 }
544
cap_shm_alloc_security(struct shmid_kernel * shp)545 static int cap_shm_alloc_security(struct shmid_kernel *shp)
546 {
547 return 0;
548 }
549
cap_shm_free_security(struct shmid_kernel * shp)550 static void cap_shm_free_security(struct shmid_kernel *shp)
551 {
552 }
553
cap_shm_associate(struct shmid_kernel * shp,int shmflg)554 static int cap_shm_associate(struct shmid_kernel *shp, int shmflg)
555 {
556 return 0;
557 }
558
cap_shm_shmctl(struct shmid_kernel * shp,int cmd)559 static int cap_shm_shmctl(struct shmid_kernel *shp, int cmd)
560 {
561 return 0;
562 }
563
cap_shm_shmat(struct shmid_kernel * shp,char __user * shmaddr,int shmflg)564 static int cap_shm_shmat(struct shmid_kernel *shp, char __user *shmaddr,
565 int shmflg)
566 {
567 return 0;
568 }
569
cap_sem_alloc_security(struct sem_array * sma)570 static int cap_sem_alloc_security(struct sem_array *sma)
571 {
572 return 0;
573 }
574
cap_sem_free_security(struct sem_array * sma)575 static void cap_sem_free_security(struct sem_array *sma)
576 {
577 }
578
cap_sem_associate(struct sem_array * sma,int semflg)579 static int cap_sem_associate(struct sem_array *sma, int semflg)
580 {
581 return 0;
582 }
583
cap_sem_semctl(struct sem_array * sma,int cmd)584 static int cap_sem_semctl(struct sem_array *sma, int cmd)
585 {
586 return 0;
587 }
588
cap_sem_semop(struct sem_array * sma,struct sembuf * sops,unsigned nsops,int alter)589 static int cap_sem_semop(struct sem_array *sma, struct sembuf *sops,
590 unsigned nsops, int alter)
591 {
592 return 0;
593 }
594
595 #ifdef CONFIG_SECURITY_NETWORK
cap_unix_stream_connect(struct sock * sock,struct sock * other,struct sock * newsk)596 static int cap_unix_stream_connect(struct sock *sock, struct sock *other,
597 struct sock *newsk)
598 {
599 return 0;
600 }
601
cap_unix_may_send(struct socket * sock,struct socket * other)602 static int cap_unix_may_send(struct socket *sock, struct socket *other)
603 {
604 return 0;
605 }
606
cap_socket_create(int family,int type,int protocol,int kern)607 static int cap_socket_create(int family, int type, int protocol, int kern)
608 {
609 return 0;
610 }
611
cap_socket_post_create(struct socket * sock,int family,int type,int protocol,int kern)612 static int cap_socket_post_create(struct socket *sock, int family, int type,
613 int protocol, int kern)
614 {
615 return 0;
616 }
617
cap_socket_bind(struct socket * sock,struct sockaddr * address,int addrlen)618 static int cap_socket_bind(struct socket *sock, struct sockaddr *address,
619 int addrlen)
620 {
621 return 0;
622 }
623
cap_socket_connect(struct socket * sock,struct sockaddr * address,int addrlen)624 static int cap_socket_connect(struct socket *sock, struct sockaddr *address,
625 int addrlen)
626 {
627 return 0;
628 }
629
cap_socket_listen(struct socket * sock,int backlog)630 static int cap_socket_listen(struct socket *sock, int backlog)
631 {
632 return 0;
633 }
634
cap_socket_accept(struct socket * sock,struct socket * newsock)635 static int cap_socket_accept(struct socket *sock, struct socket *newsock)
636 {
637 return 0;
638 }
639
cap_socket_sendmsg(struct socket * sock,struct msghdr * msg,int size)640 static int cap_socket_sendmsg(struct socket *sock, struct msghdr *msg, int size)
641 {
642 return 0;
643 }
644
cap_socket_recvmsg(struct socket * sock,struct msghdr * msg,int size,int flags)645 static int cap_socket_recvmsg(struct socket *sock, struct msghdr *msg,
646 int size, int flags)
647 {
648 return 0;
649 }
650
cap_socket_getsockname(struct socket * sock)651 static int cap_socket_getsockname(struct socket *sock)
652 {
653 return 0;
654 }
655
cap_socket_getpeername(struct socket * sock)656 static int cap_socket_getpeername(struct socket *sock)
657 {
658 return 0;
659 }
660
cap_socket_setsockopt(struct socket * sock,int level,int optname)661 static int cap_socket_setsockopt(struct socket *sock, int level, int optname)
662 {
663 return 0;
664 }
665
cap_socket_getsockopt(struct socket * sock,int level,int optname)666 static int cap_socket_getsockopt(struct socket *sock, int level, int optname)
667 {
668 return 0;
669 }
670
cap_socket_shutdown(struct socket * sock,int how)671 static int cap_socket_shutdown(struct socket *sock, int how)
672 {
673 return 0;
674 }
675
cap_socket_sock_rcv_skb(struct sock * sk,struct sk_buff * skb)676 static int cap_socket_sock_rcv_skb(struct sock *sk, struct sk_buff *skb)
677 {
678 return 0;
679 }
680
cap_socket_getpeersec_stream(struct socket * sock,char __user * optval,int __user * optlen,unsigned len)681 static int cap_socket_getpeersec_stream(struct socket *sock,
682 char __user *optval,
683 int __user *optlen, unsigned len)
684 {
685 return -ENOPROTOOPT;
686 }
687
cap_socket_getpeersec_dgram(struct socket * sock,struct sk_buff * skb,u32 * secid)688 static int cap_socket_getpeersec_dgram(struct socket *sock,
689 struct sk_buff *skb, u32 *secid)
690 {
691 return -ENOPROTOOPT;
692 }
693
cap_sk_alloc_security(struct sock * sk,int family,gfp_t priority)694 static int cap_sk_alloc_security(struct sock *sk, int family, gfp_t priority)
695 {
696 return 0;
697 }
698
cap_sk_free_security(struct sock * sk)699 static void cap_sk_free_security(struct sock *sk)
700 {
701 }
702
cap_sk_clone_security(const struct sock * sk,struct sock * newsk)703 static void cap_sk_clone_security(const struct sock *sk, struct sock *newsk)
704 {
705 }
706
cap_sk_getsecid(struct sock * sk,u32 * secid)707 static void cap_sk_getsecid(struct sock *sk, u32 *secid)
708 {
709 }
710
cap_sock_graft(struct sock * sk,struct socket * parent)711 static void cap_sock_graft(struct sock *sk, struct socket *parent)
712 {
713 }
714
cap_inet_conn_request(struct sock * sk,struct sk_buff * skb,struct request_sock * req)715 static int cap_inet_conn_request(struct sock *sk, struct sk_buff *skb,
716 struct request_sock *req)
717 {
718 return 0;
719 }
720
cap_inet_csk_clone(struct sock * newsk,const struct request_sock * req)721 static void cap_inet_csk_clone(struct sock *newsk,
722 const struct request_sock *req)
723 {
724 }
725
cap_inet_conn_established(struct sock * sk,struct sk_buff * skb)726 static void cap_inet_conn_established(struct sock *sk, struct sk_buff *skb)
727 {
728 }
729
cap_secmark_relabel_packet(u32 secid)730 static int cap_secmark_relabel_packet(u32 secid)
731 {
732 return 0;
733 }
734
cap_secmark_refcount_inc(void)735 static void cap_secmark_refcount_inc(void)
736 {
737 }
738
cap_secmark_refcount_dec(void)739 static void cap_secmark_refcount_dec(void)
740 {
741 }
742
cap_req_classify_flow(const struct request_sock * req,struct flowi * fl)743 static void cap_req_classify_flow(const struct request_sock *req,
744 struct flowi *fl)
745 {
746 }
747
cap_tun_dev_alloc_security(void ** security)748 static int cap_tun_dev_alloc_security(void **security)
749 {
750 return 0;
751 }
752
cap_tun_dev_free_security(void * security)753 static void cap_tun_dev_free_security(void *security)
754 {
755 }
756
cap_tun_dev_create(void)757 static int cap_tun_dev_create(void)
758 {
759 return 0;
760 }
761
cap_tun_dev_attach_queue(void * security)762 static int cap_tun_dev_attach_queue(void *security)
763 {
764 return 0;
765 }
766
cap_tun_dev_attach(struct sock * sk,void * security)767 static int cap_tun_dev_attach(struct sock *sk, void *security)
768 {
769 return 0;
770 }
771
cap_tun_dev_open(void * security)772 static int cap_tun_dev_open(void *security)
773 {
774 return 0;
775 }
776
cap_skb_owned_by(struct sk_buff * skb,struct sock * sk)777 static void cap_skb_owned_by(struct sk_buff *skb, struct sock *sk)
778 {
779 }
780
781 #endif /* CONFIG_SECURITY_NETWORK */
782
783 #ifdef CONFIG_SECURITY_NETWORK_XFRM
cap_xfrm_policy_alloc_security(struct xfrm_sec_ctx ** ctxp,struct xfrm_user_sec_ctx * sec_ctx,gfp_t gfp)784 static int cap_xfrm_policy_alloc_security(struct xfrm_sec_ctx **ctxp,
785 struct xfrm_user_sec_ctx *sec_ctx,
786 gfp_t gfp)
787 {
788 return 0;
789 }
790
cap_xfrm_policy_clone_security(struct xfrm_sec_ctx * old_ctx,struct xfrm_sec_ctx ** new_ctxp)791 static int cap_xfrm_policy_clone_security(struct xfrm_sec_ctx *old_ctx,
792 struct xfrm_sec_ctx **new_ctxp)
793 {
794 return 0;
795 }
796
cap_xfrm_policy_free_security(struct xfrm_sec_ctx * ctx)797 static void cap_xfrm_policy_free_security(struct xfrm_sec_ctx *ctx)
798 {
799 }
800
cap_xfrm_policy_delete_security(struct xfrm_sec_ctx * ctx)801 static int cap_xfrm_policy_delete_security(struct xfrm_sec_ctx *ctx)
802 {
803 return 0;
804 }
805
cap_xfrm_state_alloc(struct xfrm_state * x,struct xfrm_user_sec_ctx * sec_ctx)806 static int cap_xfrm_state_alloc(struct xfrm_state *x,
807 struct xfrm_user_sec_ctx *sec_ctx)
808 {
809 return 0;
810 }
811
cap_xfrm_state_alloc_acquire(struct xfrm_state * x,struct xfrm_sec_ctx * polsec,u32 secid)812 static int cap_xfrm_state_alloc_acquire(struct xfrm_state *x,
813 struct xfrm_sec_ctx *polsec,
814 u32 secid)
815 {
816 return 0;
817 }
818
cap_xfrm_state_free_security(struct xfrm_state * x)819 static void cap_xfrm_state_free_security(struct xfrm_state *x)
820 {
821 }
822
cap_xfrm_state_delete_security(struct xfrm_state * x)823 static int cap_xfrm_state_delete_security(struct xfrm_state *x)
824 {
825 return 0;
826 }
827
cap_xfrm_policy_lookup(struct xfrm_sec_ctx * ctx,u32 sk_sid,u8 dir)828 static int cap_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 sk_sid, u8 dir)
829 {
830 return 0;
831 }
832
cap_xfrm_state_pol_flow_match(struct xfrm_state * x,struct xfrm_policy * xp,const struct flowi * fl)833 static int cap_xfrm_state_pol_flow_match(struct xfrm_state *x,
834 struct xfrm_policy *xp,
835 const struct flowi *fl)
836 {
837 return 1;
838 }
839
cap_xfrm_decode_session(struct sk_buff * skb,u32 * fl,int ckall)840 static int cap_xfrm_decode_session(struct sk_buff *skb, u32 *fl, int ckall)
841 {
842 return 0;
843 }
844
845 #endif /* CONFIG_SECURITY_NETWORK_XFRM */
cap_d_instantiate(struct dentry * dentry,struct inode * inode)846 static void cap_d_instantiate(struct dentry *dentry, struct inode *inode)
847 {
848 }
849
cap_getprocattr(struct task_struct * p,char * name,char ** value)850 static int cap_getprocattr(struct task_struct *p, char *name, char **value)
851 {
852 return -EINVAL;
853 }
854
cap_setprocattr(struct task_struct * p,char * name,void * value,size_t size)855 static int cap_setprocattr(struct task_struct *p, char *name, void *value,
856 size_t size)
857 {
858 return -EINVAL;
859 }
860
cap_ismaclabel(const char * name)861 static int cap_ismaclabel(const char *name)
862 {
863 return 0;
864 }
865
cap_secid_to_secctx(u32 secid,char ** secdata,u32 * seclen)866 static int cap_secid_to_secctx(u32 secid, char **secdata, u32 *seclen)
867 {
868 return -EOPNOTSUPP;
869 }
870
cap_secctx_to_secid(const char * secdata,u32 seclen,u32 * secid)871 static int cap_secctx_to_secid(const char *secdata, u32 seclen, u32 *secid)
872 {
873 *secid = 0;
874 return 0;
875 }
876
cap_release_secctx(char * secdata,u32 seclen)877 static void cap_release_secctx(char *secdata, u32 seclen)
878 {
879 }
880
cap_inode_notifysecctx(struct inode * inode,void * ctx,u32 ctxlen)881 static int cap_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen)
882 {
883 return 0;
884 }
885
cap_inode_setsecctx(struct dentry * dentry,void * ctx,u32 ctxlen)886 static int cap_inode_setsecctx(struct dentry *dentry, void *ctx, u32 ctxlen)
887 {
888 return 0;
889 }
890
cap_inode_getsecctx(struct inode * inode,void ** ctx,u32 * ctxlen)891 static int cap_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen)
892 {
893 return -EOPNOTSUPP;
894 }
895 #ifdef CONFIG_KEYS
cap_key_alloc(struct key * key,const struct cred * cred,unsigned long flags)896 static int cap_key_alloc(struct key *key, const struct cred *cred,
897 unsigned long flags)
898 {
899 return 0;
900 }
901
cap_key_free(struct key * key)902 static void cap_key_free(struct key *key)
903 {
904 }
905
cap_key_permission(key_ref_t key_ref,const struct cred * cred,unsigned perm)906 static int cap_key_permission(key_ref_t key_ref, const struct cred *cred,
907 unsigned perm)
908 {
909 return 0;
910 }
911
cap_key_getsecurity(struct key * key,char ** _buffer)912 static int cap_key_getsecurity(struct key *key, char **_buffer)
913 {
914 *_buffer = NULL;
915 return 0;
916 }
917
918 #endif /* CONFIG_KEYS */
919
920 #ifdef CONFIG_AUDIT
cap_audit_rule_init(u32 field,u32 op,char * rulestr,void ** lsmrule)921 static int cap_audit_rule_init(u32 field, u32 op, char *rulestr, void **lsmrule)
922 {
923 return 0;
924 }
925
cap_audit_rule_known(struct audit_krule * krule)926 static int cap_audit_rule_known(struct audit_krule *krule)
927 {
928 return 0;
929 }
930
cap_audit_rule_match(u32 secid,u32 field,u32 op,void * lsmrule,struct audit_context * actx)931 static int cap_audit_rule_match(u32 secid, u32 field, u32 op, void *lsmrule,
932 struct audit_context *actx)
933 {
934 return 0;
935 }
936
cap_audit_rule_free(void * lsmrule)937 static void cap_audit_rule_free(void *lsmrule)
938 {
939 }
940 #endif /* CONFIG_AUDIT */
941
942 #define set_to_cap_if_null(ops, function) \
943 do { \
944 if (!ops->function) { \
945 ops->function = cap_##function; \
946 pr_debug("Had to override the " #function \
947 " security operation with the default.\n");\
948 } \
949 } while (0)
950
security_fixup_ops(struct security_operations * ops)951 void __init security_fixup_ops(struct security_operations *ops)
952 {
953 set_to_cap_if_null(ops, binder_set_context_mgr);
954 set_to_cap_if_null(ops, binder_transaction);
955 set_to_cap_if_null(ops, binder_transfer_binder);
956 set_to_cap_if_null(ops, binder_transfer_file);
957 set_to_cap_if_null(ops, ptrace_access_check);
958 set_to_cap_if_null(ops, ptrace_traceme);
959 set_to_cap_if_null(ops, capget);
960 set_to_cap_if_null(ops, capset);
961 set_to_cap_if_null(ops, capable);
962 set_to_cap_if_null(ops, quotactl);
963 set_to_cap_if_null(ops, quota_on);
964 set_to_cap_if_null(ops, syslog);
965 set_to_cap_if_null(ops, settime);
966 set_to_cap_if_null(ops, vm_enough_memory);
967 set_to_cap_if_null(ops, bprm_set_creds);
968 set_to_cap_if_null(ops, bprm_committing_creds);
969 set_to_cap_if_null(ops, bprm_committed_creds);
970 set_to_cap_if_null(ops, bprm_check_security);
971 set_to_cap_if_null(ops, bprm_secureexec);
972 set_to_cap_if_null(ops, sb_alloc_security);
973 set_to_cap_if_null(ops, sb_free_security);
974 set_to_cap_if_null(ops, sb_copy_data);
975 set_to_cap_if_null(ops, sb_remount);
976 set_to_cap_if_null(ops, sb_kern_mount);
977 set_to_cap_if_null(ops, sb_show_options);
978 set_to_cap_if_null(ops, sb_statfs);
979 set_to_cap_if_null(ops, sb_mount);
980 set_to_cap_if_null(ops, sb_umount);
981 set_to_cap_if_null(ops, sb_pivotroot);
982 set_to_cap_if_null(ops, sb_set_mnt_opts);
983 set_to_cap_if_null(ops, sb_clone_mnt_opts);
984 set_to_cap_if_null(ops, sb_parse_opts_str);
985 set_to_cap_if_null(ops, dentry_init_security);
986 set_to_cap_if_null(ops, inode_alloc_security);
987 set_to_cap_if_null(ops, inode_free_security);
988 set_to_cap_if_null(ops, inode_init_security);
989 set_to_cap_if_null(ops, inode_create);
990 set_to_cap_if_null(ops, inode_link);
991 set_to_cap_if_null(ops, inode_unlink);
992 set_to_cap_if_null(ops, inode_symlink);
993 set_to_cap_if_null(ops, inode_mkdir);
994 set_to_cap_if_null(ops, inode_rmdir);
995 set_to_cap_if_null(ops, inode_mknod);
996 set_to_cap_if_null(ops, inode_rename);
997 set_to_cap_if_null(ops, inode_readlink);
998 set_to_cap_if_null(ops, inode_follow_link);
999 set_to_cap_if_null(ops, inode_permission);
1000 set_to_cap_if_null(ops, inode_setattr);
1001 set_to_cap_if_null(ops, inode_getattr);
1002 set_to_cap_if_null(ops, inode_setxattr);
1003 set_to_cap_if_null(ops, inode_post_setxattr);
1004 set_to_cap_if_null(ops, inode_getxattr);
1005 set_to_cap_if_null(ops, inode_listxattr);
1006 set_to_cap_if_null(ops, inode_removexattr);
1007 set_to_cap_if_null(ops, inode_need_killpriv);
1008 set_to_cap_if_null(ops, inode_killpriv);
1009 set_to_cap_if_null(ops, inode_getsecurity);
1010 set_to_cap_if_null(ops, inode_setsecurity);
1011 set_to_cap_if_null(ops, inode_listsecurity);
1012 set_to_cap_if_null(ops, inode_getsecid);
1013 #ifdef CONFIG_SECURITY_PATH
1014 set_to_cap_if_null(ops, path_mknod);
1015 set_to_cap_if_null(ops, path_mkdir);
1016 set_to_cap_if_null(ops, path_rmdir);
1017 set_to_cap_if_null(ops, path_unlink);
1018 set_to_cap_if_null(ops, path_symlink);
1019 set_to_cap_if_null(ops, path_link);
1020 set_to_cap_if_null(ops, path_rename);
1021 set_to_cap_if_null(ops, path_truncate);
1022 set_to_cap_if_null(ops, path_chmod);
1023 set_to_cap_if_null(ops, path_chown);
1024 set_to_cap_if_null(ops, path_chroot);
1025 #endif
1026 set_to_cap_if_null(ops, file_permission);
1027 set_to_cap_if_null(ops, file_alloc_security);
1028 set_to_cap_if_null(ops, file_free_security);
1029 set_to_cap_if_null(ops, file_ioctl);
1030 set_to_cap_if_null(ops, mmap_addr);
1031 set_to_cap_if_null(ops, mmap_file);
1032 set_to_cap_if_null(ops, file_mprotect);
1033 set_to_cap_if_null(ops, file_lock);
1034 set_to_cap_if_null(ops, file_fcntl);
1035 set_to_cap_if_null(ops, file_set_fowner);
1036 set_to_cap_if_null(ops, file_send_sigiotask);
1037 set_to_cap_if_null(ops, file_receive);
1038 set_to_cap_if_null(ops, file_open);
1039 set_to_cap_if_null(ops, task_create);
1040 set_to_cap_if_null(ops, task_free);
1041 set_to_cap_if_null(ops, cred_alloc_blank);
1042 set_to_cap_if_null(ops, cred_free);
1043 set_to_cap_if_null(ops, cred_prepare);
1044 set_to_cap_if_null(ops, cred_transfer);
1045 set_to_cap_if_null(ops, kernel_act_as);
1046 set_to_cap_if_null(ops, kernel_create_files_as);
1047 set_to_cap_if_null(ops, kernel_fw_from_file);
1048 set_to_cap_if_null(ops, kernel_module_request);
1049 set_to_cap_if_null(ops, kernel_module_from_file);
1050 set_to_cap_if_null(ops, task_fix_setuid);
1051 set_to_cap_if_null(ops, task_setpgid);
1052 set_to_cap_if_null(ops, task_getpgid);
1053 set_to_cap_if_null(ops, task_getsid);
1054 set_to_cap_if_null(ops, task_getsecid);
1055 set_to_cap_if_null(ops, task_setnice);
1056 set_to_cap_if_null(ops, task_setioprio);
1057 set_to_cap_if_null(ops, task_getioprio);
1058 set_to_cap_if_null(ops, task_setrlimit);
1059 set_to_cap_if_null(ops, task_setscheduler);
1060 set_to_cap_if_null(ops, task_getscheduler);
1061 set_to_cap_if_null(ops, task_movememory);
1062 set_to_cap_if_null(ops, task_wait);
1063 set_to_cap_if_null(ops, task_kill);
1064 set_to_cap_if_null(ops, task_prctl);
1065 set_to_cap_if_null(ops, task_to_inode);
1066 set_to_cap_if_null(ops, ipc_permission);
1067 set_to_cap_if_null(ops, ipc_getsecid);
1068 set_to_cap_if_null(ops, msg_msg_alloc_security);
1069 set_to_cap_if_null(ops, msg_msg_free_security);
1070 set_to_cap_if_null(ops, msg_queue_alloc_security);
1071 set_to_cap_if_null(ops, msg_queue_free_security);
1072 set_to_cap_if_null(ops, msg_queue_associate);
1073 set_to_cap_if_null(ops, msg_queue_msgctl);
1074 set_to_cap_if_null(ops, msg_queue_msgsnd);
1075 set_to_cap_if_null(ops, msg_queue_msgrcv);
1076 set_to_cap_if_null(ops, shm_alloc_security);
1077 set_to_cap_if_null(ops, shm_free_security);
1078 set_to_cap_if_null(ops, shm_associate);
1079 set_to_cap_if_null(ops, shm_shmctl);
1080 set_to_cap_if_null(ops, shm_shmat);
1081 set_to_cap_if_null(ops, sem_alloc_security);
1082 set_to_cap_if_null(ops, sem_free_security);
1083 set_to_cap_if_null(ops, sem_associate);
1084 set_to_cap_if_null(ops, sem_semctl);
1085 set_to_cap_if_null(ops, sem_semop);
1086 set_to_cap_if_null(ops, netlink_send);
1087 set_to_cap_if_null(ops, d_instantiate);
1088 set_to_cap_if_null(ops, getprocattr);
1089 set_to_cap_if_null(ops, setprocattr);
1090 set_to_cap_if_null(ops, ismaclabel);
1091 set_to_cap_if_null(ops, secid_to_secctx);
1092 set_to_cap_if_null(ops, secctx_to_secid);
1093 set_to_cap_if_null(ops, release_secctx);
1094 set_to_cap_if_null(ops, inode_notifysecctx);
1095 set_to_cap_if_null(ops, inode_setsecctx);
1096 set_to_cap_if_null(ops, inode_getsecctx);
1097 #ifdef CONFIG_SECURITY_NETWORK
1098 set_to_cap_if_null(ops, unix_stream_connect);
1099 set_to_cap_if_null(ops, unix_may_send);
1100 set_to_cap_if_null(ops, socket_create);
1101 set_to_cap_if_null(ops, socket_post_create);
1102 set_to_cap_if_null(ops, socket_bind);
1103 set_to_cap_if_null(ops, socket_connect);
1104 set_to_cap_if_null(ops, socket_listen);
1105 set_to_cap_if_null(ops, socket_accept);
1106 set_to_cap_if_null(ops, socket_sendmsg);
1107 set_to_cap_if_null(ops, socket_recvmsg);
1108 set_to_cap_if_null(ops, socket_getsockname);
1109 set_to_cap_if_null(ops, socket_getpeername);
1110 set_to_cap_if_null(ops, socket_setsockopt);
1111 set_to_cap_if_null(ops, socket_getsockopt);
1112 set_to_cap_if_null(ops, socket_shutdown);
1113 set_to_cap_if_null(ops, socket_sock_rcv_skb);
1114 set_to_cap_if_null(ops, socket_getpeersec_stream);
1115 set_to_cap_if_null(ops, socket_getpeersec_dgram);
1116 set_to_cap_if_null(ops, sk_alloc_security);
1117 set_to_cap_if_null(ops, sk_free_security);
1118 set_to_cap_if_null(ops, sk_clone_security);
1119 set_to_cap_if_null(ops, sk_getsecid);
1120 set_to_cap_if_null(ops, sock_graft);
1121 set_to_cap_if_null(ops, inet_conn_request);
1122 set_to_cap_if_null(ops, inet_csk_clone);
1123 set_to_cap_if_null(ops, inet_conn_established);
1124 set_to_cap_if_null(ops, secmark_relabel_packet);
1125 set_to_cap_if_null(ops, secmark_refcount_inc);
1126 set_to_cap_if_null(ops, secmark_refcount_dec);
1127 set_to_cap_if_null(ops, req_classify_flow);
1128 set_to_cap_if_null(ops, tun_dev_alloc_security);
1129 set_to_cap_if_null(ops, tun_dev_free_security);
1130 set_to_cap_if_null(ops, tun_dev_create);
1131 set_to_cap_if_null(ops, tun_dev_open);
1132 set_to_cap_if_null(ops, tun_dev_attach_queue);
1133 set_to_cap_if_null(ops, tun_dev_attach);
1134 set_to_cap_if_null(ops, skb_owned_by);
1135 #endif /* CONFIG_SECURITY_NETWORK */
1136 #ifdef CONFIG_SECURITY_NETWORK_XFRM
1137 set_to_cap_if_null(ops, xfrm_policy_alloc_security);
1138 set_to_cap_if_null(ops, xfrm_policy_clone_security);
1139 set_to_cap_if_null(ops, xfrm_policy_free_security);
1140 set_to_cap_if_null(ops, xfrm_policy_delete_security);
1141 set_to_cap_if_null(ops, xfrm_state_alloc);
1142 set_to_cap_if_null(ops, xfrm_state_alloc_acquire);
1143 set_to_cap_if_null(ops, xfrm_state_free_security);
1144 set_to_cap_if_null(ops, xfrm_state_delete_security);
1145 set_to_cap_if_null(ops, xfrm_policy_lookup);
1146 set_to_cap_if_null(ops, xfrm_state_pol_flow_match);
1147 set_to_cap_if_null(ops, xfrm_decode_session);
1148 #endif /* CONFIG_SECURITY_NETWORK_XFRM */
1149 #ifdef CONFIG_KEYS
1150 set_to_cap_if_null(ops, key_alloc);
1151 set_to_cap_if_null(ops, key_free);
1152 set_to_cap_if_null(ops, key_permission);
1153 set_to_cap_if_null(ops, key_getsecurity);
1154 #endif /* CONFIG_KEYS */
1155 #ifdef CONFIG_AUDIT
1156 set_to_cap_if_null(ops, audit_rule_init);
1157 set_to_cap_if_null(ops, audit_rule_known);
1158 set_to_cap_if_null(ops, audit_rule_match);
1159 set_to_cap_if_null(ops, audit_rule_free);
1160 #endif
1161 }
1162