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Commit | Line | Data |
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1da177e4 LT |
1 | /* |
2 | * Capabilities Linux Security Module | |
3 | * | |
5915eb53 MS |
4 | * This is the default security module in case no other module is loaded. |
5 | * | |
1da177e4 LT |
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 | ||
1da177e4 | 13 | #include <linux/security.h> |
1da177e4 | 14 | |
5915eb53 MS |
15 | static int cap_acct(struct file *file) |
16 | { | |
17 | return 0; | |
18 | } | |
19 | ||
20 | static int cap_sysctl(ctl_table *table, int op) | |
21 | { | |
22 | return 0; | |
23 | } | |
24 | ||
25 | static int cap_quotactl(int cmds, int type, int id, struct super_block *sb) | |
26 | { | |
27 | return 0; | |
28 | } | |
29 | ||
30 | static int cap_quota_on(struct dentry *dentry) | |
31 | { | |
32 | return 0; | |
33 | } | |
34 | ||
a6f76f23 | 35 | static int cap_bprm_check_security (struct linux_binprm *bprm) |
5915eb53 MS |
36 | { |
37 | return 0; | |
38 | } | |
39 | ||
a6f76f23 | 40 | static void cap_bprm_committing_creds(struct linux_binprm *bprm) |
5915eb53 MS |
41 | { |
42 | } | |
43 | ||
a6f76f23 | 44 | static void cap_bprm_committed_creds(struct linux_binprm *bprm) |
5915eb53 MS |
45 | { |
46 | } | |
47 | ||
5915eb53 MS |
48 | static int cap_sb_alloc_security(struct super_block *sb) |
49 | { | |
50 | return 0; | |
51 | } | |
52 | ||
53 | static void cap_sb_free_security(struct super_block *sb) | |
54 | { | |
55 | } | |
56 | ||
57 | static int cap_sb_copy_data(char *orig, char *copy) | |
58 | { | |
59 | return 0; | |
60 | } | |
61 | ||
12204e24 | 62 | static int cap_sb_kern_mount(struct super_block *sb, int flags, void *data) |
5915eb53 MS |
63 | { |
64 | return 0; | |
65 | } | |
66 | ||
67 | static int cap_sb_show_options(struct seq_file *m, struct super_block *sb) | |
68 | { | |
69 | return 0; | |
70 | } | |
71 | ||
72 | static int cap_sb_statfs(struct dentry *dentry) | |
73 | { | |
74 | return 0; | |
75 | } | |
76 | ||
77 | static int cap_sb_mount(char *dev_name, struct path *path, char *type, | |
78 | unsigned long flags, void *data) | |
79 | { | |
80 | return 0; | |
81 | } | |
82 | ||
83 | static int cap_sb_check_sb(struct vfsmount *mnt, struct path *path) | |
84 | { | |
85 | return 0; | |
86 | } | |
87 | ||
88 | static int cap_sb_umount(struct vfsmount *mnt, int flags) | |
89 | { | |
90 | return 0; | |
91 | } | |
92 | ||
93 | static void cap_sb_umount_close(struct vfsmount *mnt) | |
94 | { | |
95 | } | |
96 | ||
97 | static void cap_sb_umount_busy(struct vfsmount *mnt) | |
98 | { | |
99 | } | |
100 | ||
101 | static void cap_sb_post_remount(struct vfsmount *mnt, unsigned long flags, | |
102 | void *data) | |
103 | { | |
104 | } | |
105 | ||
106 | static void cap_sb_post_addmount(struct vfsmount *mnt, struct path *path) | |
107 | { | |
108 | } | |
109 | ||
110 | static int cap_sb_pivotroot(struct path *old_path, struct path *new_path) | |
111 | { | |
112 | return 0; | |
113 | } | |
114 | ||
115 | static void cap_sb_post_pivotroot(struct path *old_path, struct path *new_path) | |
116 | { | |
117 | } | |
118 | ||
119 | static int cap_sb_set_mnt_opts(struct super_block *sb, | |
120 | struct security_mnt_opts *opts) | |
121 | { | |
122 | if (unlikely(opts->num_mnt_opts)) | |
123 | return -EOPNOTSUPP; | |
124 | return 0; | |
125 | } | |
126 | ||
127 | static void cap_sb_clone_mnt_opts(const struct super_block *oldsb, | |
128 | struct super_block *newsb) | |
129 | { | |
130 | } | |
131 | ||
132 | static int cap_sb_parse_opts_str(char *options, struct security_mnt_opts *opts) | |
133 | { | |
134 | return 0; | |
135 | } | |
136 | ||
137 | static int cap_inode_alloc_security(struct inode *inode) | |
138 | { | |
139 | return 0; | |
140 | } | |
141 | ||
142 | static void cap_inode_free_security(struct inode *inode) | |
143 | { | |
144 | } | |
145 | ||
146 | static int cap_inode_init_security(struct inode *inode, struct inode *dir, | |
147 | char **name, void **value, size_t *len) | |
148 | { | |
149 | return -EOPNOTSUPP; | |
150 | } | |
151 | ||
152 | static int cap_inode_create(struct inode *inode, struct dentry *dentry, | |
153 | int mask) | |
154 | { | |
155 | return 0; | |
156 | } | |
157 | ||
158 | static int cap_inode_link(struct dentry *old_dentry, struct inode *inode, | |
159 | struct dentry *new_dentry) | |
160 | { | |
161 | return 0; | |
162 | } | |
163 | ||
164 | static int cap_inode_unlink(struct inode *inode, struct dentry *dentry) | |
165 | { | |
166 | return 0; | |
167 | } | |
168 | ||
169 | static int cap_inode_symlink(struct inode *inode, struct dentry *dentry, | |
170 | const char *name) | |
171 | { | |
172 | return 0; | |
173 | } | |
174 | ||
175 | static int cap_inode_mkdir(struct inode *inode, struct dentry *dentry, | |
176 | int mask) | |
177 | { | |
178 | return 0; | |
179 | } | |
180 | ||
181 | static int cap_inode_rmdir(struct inode *inode, struct dentry *dentry) | |
182 | { | |
183 | return 0; | |
184 | } | |
185 | ||
186 | static int cap_inode_mknod(struct inode *inode, struct dentry *dentry, | |
187 | int mode, dev_t dev) | |
188 | { | |
189 | return 0; | |
190 | } | |
191 | ||
192 | static int cap_inode_rename(struct inode *old_inode, struct dentry *old_dentry, | |
193 | struct inode *new_inode, struct dentry *new_dentry) | |
194 | { | |
195 | return 0; | |
196 | } | |
197 | ||
198 | static int cap_inode_readlink(struct dentry *dentry) | |
199 | { | |
200 | return 0; | |
201 | } | |
202 | ||
203 | static int cap_inode_follow_link(struct dentry *dentry, | |
204 | struct nameidata *nameidata) | |
205 | { | |
206 | return 0; | |
207 | } | |
208 | ||
b77b0646 | 209 | static int cap_inode_permission(struct inode *inode, int mask) |
5915eb53 MS |
210 | { |
211 | return 0; | |
212 | } | |
213 | ||
214 | static int cap_inode_setattr(struct dentry *dentry, struct iattr *iattr) | |
215 | { | |
216 | return 0; | |
217 | } | |
218 | ||
219 | static int cap_inode_getattr(struct vfsmount *mnt, struct dentry *dentry) | |
220 | { | |
221 | return 0; | |
222 | } | |
223 | ||
224 | static void cap_inode_delete(struct inode *ino) | |
225 | { | |
226 | } | |
227 | ||
228 | static void cap_inode_post_setxattr(struct dentry *dentry, const char *name, | |
229 | const void *value, size_t size, int flags) | |
230 | { | |
231 | } | |
232 | ||
233 | static int cap_inode_getxattr(struct dentry *dentry, const char *name) | |
234 | { | |
235 | return 0; | |
236 | } | |
237 | ||
238 | static int cap_inode_listxattr(struct dentry *dentry) | |
239 | { | |
240 | return 0; | |
241 | } | |
242 | ||
243 | static int cap_inode_getsecurity(const struct inode *inode, const char *name, | |
244 | void **buffer, bool alloc) | |
245 | { | |
246 | return -EOPNOTSUPP; | |
247 | } | |
248 | ||
249 | static int cap_inode_setsecurity(struct inode *inode, const char *name, | |
250 | const void *value, size_t size, int flags) | |
251 | { | |
252 | return -EOPNOTSUPP; | |
253 | } | |
254 | ||
255 | static int cap_inode_listsecurity(struct inode *inode, char *buffer, | |
256 | size_t buffer_size) | |
257 | { | |
258 | return 0; | |
259 | } | |
260 | ||
261 | static void cap_inode_getsecid(const struct inode *inode, u32 *secid) | |
262 | { | |
263 | *secid = 0; | |
264 | } | |
265 | ||
266 | static int cap_file_permission(struct file *file, int mask) | |
267 | { | |
268 | return 0; | |
269 | } | |
270 | ||
271 | static int cap_file_alloc_security(struct file *file) | |
272 | { | |
273 | return 0; | |
274 | } | |
275 | ||
276 | static void cap_file_free_security(struct file *file) | |
277 | { | |
278 | } | |
279 | ||
280 | static int cap_file_ioctl(struct file *file, unsigned int command, | |
281 | unsigned long arg) | |
282 | { | |
283 | return 0; | |
284 | } | |
285 | ||
286 | static int cap_file_mmap(struct file *file, unsigned long reqprot, | |
287 | unsigned long prot, unsigned long flags, | |
288 | unsigned long addr, unsigned long addr_only) | |
289 | { | |
290 | if ((addr < mmap_min_addr) && !capable(CAP_SYS_RAWIO)) | |
291 | return -EACCES; | |
292 | return 0; | |
293 | } | |
294 | ||
295 | static int cap_file_mprotect(struct vm_area_struct *vma, unsigned long reqprot, | |
296 | unsigned long prot) | |
297 | { | |
298 | return 0; | |
299 | } | |
300 | ||
301 | static int cap_file_lock(struct file *file, unsigned int cmd) | |
302 | { | |
303 | return 0; | |
304 | } | |
305 | ||
306 | static int cap_file_fcntl(struct file *file, unsigned int cmd, | |
307 | unsigned long arg) | |
308 | { | |
309 | return 0; | |
310 | } | |
311 | ||
312 | static int cap_file_set_fowner(struct file *file) | |
313 | { | |
314 | return 0; | |
315 | } | |
316 | ||
317 | static int cap_file_send_sigiotask(struct task_struct *tsk, | |
318 | struct fown_struct *fown, int sig) | |
319 | { | |
320 | return 0; | |
321 | } | |
322 | ||
323 | static int cap_file_receive(struct file *file) | |
324 | { | |
325 | return 0; | |
326 | } | |
327 | ||
745ca247 | 328 | static int cap_dentry_open(struct file *file, const struct cred *cred) |
5915eb53 MS |
329 | { |
330 | return 0; | |
331 | } | |
332 | ||
333 | static int cap_task_create(unsigned long clone_flags) | |
334 | { | |
335 | return 0; | |
336 | } | |
337 | ||
d84f4f99 DH |
338 | static void cap_cred_free(struct cred *cred) |
339 | { | |
340 | } | |
341 | ||
342 | static int cap_cred_prepare(struct cred *new, const struct cred *old, gfp_t gfp) | |
5915eb53 MS |
343 | { |
344 | return 0; | |
345 | } | |
346 | ||
d84f4f99 | 347 | static void cap_cred_commit(struct cred *new, const struct cred *old) |
5915eb53 MS |
348 | { |
349 | } | |
350 | ||
3a3b7ce9 DH |
351 | static int cap_kernel_act_as(struct cred *new, u32 secid) |
352 | { | |
353 | return 0; | |
354 | } | |
355 | ||
356 | static int cap_kernel_create_files_as(struct cred *new, struct inode *inode) | |
357 | { | |
358 | return 0; | |
359 | } | |
360 | ||
5915eb53 MS |
361 | static int cap_task_setuid(uid_t id0, uid_t id1, uid_t id2, int flags) |
362 | { | |
363 | return 0; | |
364 | } | |
365 | ||
366 | static int cap_task_setgid(gid_t id0, gid_t id1, gid_t id2, int flags) | |
367 | { | |
368 | return 0; | |
369 | } | |
1da177e4 | 370 | |
5915eb53 MS |
371 | static int cap_task_setpgid(struct task_struct *p, pid_t pgid) |
372 | { | |
373 | return 0; | |
374 | } | |
1da177e4 | 375 | |
5915eb53 | 376 | static int cap_task_getpgid(struct task_struct *p) |
1da177e4 | 377 | { |
1da177e4 LT |
378 | return 0; |
379 | } | |
380 | ||
5915eb53 MS |
381 | static int cap_task_getsid(struct task_struct *p) |
382 | { | |
383 | return 0; | |
384 | } | |
385 | ||
386 | static void cap_task_getsecid(struct task_struct *p, u32 *secid) | |
387 | { | |
388 | *secid = 0; | |
389 | } | |
390 | ||
391 | static int cap_task_setgroups(struct group_info *group_info) | |
392 | { | |
393 | return 0; | |
394 | } | |
395 | ||
396 | static int cap_task_getioprio(struct task_struct *p) | |
397 | { | |
398 | return 0; | |
399 | } | |
400 | ||
401 | static int cap_task_setrlimit(unsigned int resource, struct rlimit *new_rlim) | |
402 | { | |
403 | return 0; | |
404 | } | |
405 | ||
406 | static int cap_task_getscheduler(struct task_struct *p) | |
407 | { | |
408 | return 0; | |
409 | } | |
410 | ||
411 | static int cap_task_movememory(struct task_struct *p) | |
412 | { | |
413 | return 0; | |
414 | } | |
415 | ||
416 | static int cap_task_wait(struct task_struct *p) | |
417 | { | |
418 | return 0; | |
419 | } | |
420 | ||
421 | static int cap_task_kill(struct task_struct *p, struct siginfo *info, | |
422 | int sig, u32 secid) | |
423 | { | |
424 | return 0; | |
425 | } | |
426 | ||
427 | static void cap_task_to_inode(struct task_struct *p, struct inode *inode) | |
428 | { | |
429 | } | |
430 | ||
431 | static int cap_ipc_permission(struct kern_ipc_perm *ipcp, short flag) | |
432 | { | |
433 | return 0; | |
434 | } | |
435 | ||
436 | static void cap_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid) | |
437 | { | |
438 | *secid = 0; | |
439 | } | |
440 | ||
441 | static int cap_msg_msg_alloc_security(struct msg_msg *msg) | |
442 | { | |
443 | return 0; | |
444 | } | |
445 | ||
446 | static void cap_msg_msg_free_security(struct msg_msg *msg) | |
447 | { | |
448 | } | |
449 | ||
450 | static int cap_msg_queue_alloc_security(struct msg_queue *msq) | |
451 | { | |
452 | return 0; | |
453 | } | |
454 | ||
455 | static void cap_msg_queue_free_security(struct msg_queue *msq) | |
456 | { | |
457 | } | |
458 | ||
459 | static int cap_msg_queue_associate(struct msg_queue *msq, int msqflg) | |
460 | { | |
461 | return 0; | |
462 | } | |
463 | ||
464 | static int cap_msg_queue_msgctl(struct msg_queue *msq, int cmd) | |
465 | { | |
466 | return 0; | |
467 | } | |
468 | ||
469 | static int cap_msg_queue_msgsnd(struct msg_queue *msq, struct msg_msg *msg, | |
470 | int msgflg) | |
471 | { | |
472 | return 0; | |
473 | } | |
474 | ||
475 | static int cap_msg_queue_msgrcv(struct msg_queue *msq, struct msg_msg *msg, | |
476 | struct task_struct *target, long type, int mode) | |
477 | { | |
478 | return 0; | |
479 | } | |
480 | ||
481 | static int cap_shm_alloc_security(struct shmid_kernel *shp) | |
482 | { | |
483 | return 0; | |
484 | } | |
485 | ||
486 | static void cap_shm_free_security(struct shmid_kernel *shp) | |
487 | { | |
488 | } | |
489 | ||
490 | static int cap_shm_associate(struct shmid_kernel *shp, int shmflg) | |
491 | { | |
492 | return 0; | |
493 | } | |
494 | ||
495 | static int cap_shm_shmctl(struct shmid_kernel *shp, int cmd) | |
496 | { | |
497 | return 0; | |
498 | } | |
499 | ||
500 | static int cap_shm_shmat(struct shmid_kernel *shp, char __user *shmaddr, | |
501 | int shmflg) | |
502 | { | |
503 | return 0; | |
504 | } | |
505 | ||
506 | static int cap_sem_alloc_security(struct sem_array *sma) | |
507 | { | |
508 | return 0; | |
509 | } | |
510 | ||
511 | static void cap_sem_free_security(struct sem_array *sma) | |
512 | { | |
513 | } | |
514 | ||
515 | static int cap_sem_associate(struct sem_array *sma, int semflg) | |
516 | { | |
517 | return 0; | |
518 | } | |
519 | ||
520 | static int cap_sem_semctl(struct sem_array *sma, int cmd) | |
521 | { | |
522 | return 0; | |
523 | } | |
524 | ||
525 | static int cap_sem_semop(struct sem_array *sma, struct sembuf *sops, | |
526 | unsigned nsops, int alter) | |
527 | { | |
528 | return 0; | |
529 | } | |
530 | ||
531 | #ifdef CONFIG_SECURITY_NETWORK | |
532 | static int cap_unix_stream_connect(struct socket *sock, struct socket *other, | |
533 | struct sock *newsk) | |
534 | { | |
535 | return 0; | |
536 | } | |
537 | ||
538 | static int cap_unix_may_send(struct socket *sock, struct socket *other) | |
539 | { | |
540 | return 0; | |
541 | } | |
542 | ||
543 | static int cap_socket_create(int family, int type, int protocol, int kern) | |
544 | { | |
545 | return 0; | |
546 | } | |
547 | ||
548 | static int cap_socket_post_create(struct socket *sock, int family, int type, | |
549 | int protocol, int kern) | |
550 | { | |
551 | return 0; | |
552 | } | |
553 | ||
554 | static int cap_socket_bind(struct socket *sock, struct sockaddr *address, | |
555 | int addrlen) | |
556 | { | |
557 | return 0; | |
558 | } | |
559 | ||
560 | static int cap_socket_connect(struct socket *sock, struct sockaddr *address, | |
561 | int addrlen) | |
562 | { | |
563 | return 0; | |
564 | } | |
565 | ||
566 | static int cap_socket_listen(struct socket *sock, int backlog) | |
567 | { | |
568 | return 0; | |
569 | } | |
570 | ||
571 | static int cap_socket_accept(struct socket *sock, struct socket *newsock) | |
572 | { | |
573 | return 0; | |
574 | } | |
575 | ||
576 | static void cap_socket_post_accept(struct socket *sock, struct socket *newsock) | |
577 | { | |
578 | } | |
579 | ||
580 | static int cap_socket_sendmsg(struct socket *sock, struct msghdr *msg, int size) | |
581 | { | |
582 | return 0; | |
583 | } | |
584 | ||
585 | static int cap_socket_recvmsg(struct socket *sock, struct msghdr *msg, | |
586 | int size, int flags) | |
587 | { | |
588 | return 0; | |
589 | } | |
590 | ||
591 | static int cap_socket_getsockname(struct socket *sock) | |
592 | { | |
593 | return 0; | |
594 | } | |
595 | ||
596 | static int cap_socket_getpeername(struct socket *sock) | |
597 | { | |
598 | return 0; | |
599 | } | |
600 | ||
601 | static int cap_socket_setsockopt(struct socket *sock, int level, int optname) | |
602 | { | |
603 | return 0; | |
604 | } | |
605 | ||
606 | static int cap_socket_getsockopt(struct socket *sock, int level, int optname) | |
607 | { | |
608 | return 0; | |
609 | } | |
610 | ||
611 | static int cap_socket_shutdown(struct socket *sock, int how) | |
612 | { | |
613 | return 0; | |
614 | } | |
615 | ||
616 | static int cap_socket_sock_rcv_skb(struct sock *sk, struct sk_buff *skb) | |
617 | { | |
618 | return 0; | |
619 | } | |
620 | ||
621 | static int cap_socket_getpeersec_stream(struct socket *sock, | |
622 | char __user *optval, | |
623 | int __user *optlen, unsigned len) | |
624 | { | |
625 | return -ENOPROTOOPT; | |
626 | } | |
627 | ||
628 | static int cap_socket_getpeersec_dgram(struct socket *sock, | |
629 | struct sk_buff *skb, u32 *secid) | |
630 | { | |
631 | return -ENOPROTOOPT; | |
632 | } | |
633 | ||
634 | static int cap_sk_alloc_security(struct sock *sk, int family, gfp_t priority) | |
635 | { | |
636 | return 0; | |
637 | } | |
638 | ||
639 | static void cap_sk_free_security(struct sock *sk) | |
640 | { | |
641 | } | |
642 | ||
643 | static void cap_sk_clone_security(const struct sock *sk, struct sock *newsk) | |
644 | { | |
645 | } | |
646 | ||
647 | static void cap_sk_getsecid(struct sock *sk, u32 *secid) | |
648 | { | |
649 | } | |
650 | ||
651 | static void cap_sock_graft(struct sock *sk, struct socket *parent) | |
652 | { | |
653 | } | |
654 | ||
655 | static int cap_inet_conn_request(struct sock *sk, struct sk_buff *skb, | |
656 | struct request_sock *req) | |
657 | { | |
658 | return 0; | |
659 | } | |
660 | ||
661 | static void cap_inet_csk_clone(struct sock *newsk, | |
662 | const struct request_sock *req) | |
663 | { | |
664 | } | |
665 | ||
666 | static void cap_inet_conn_established(struct sock *sk, struct sk_buff *skb) | |
667 | { | |
668 | } | |
669 | ||
670 | static void cap_req_classify_flow(const struct request_sock *req, | |
671 | struct flowi *fl) | |
672 | { | |
673 | } | |
674 | #endif /* CONFIG_SECURITY_NETWORK */ | |
675 | ||
676 | #ifdef CONFIG_SECURITY_NETWORK_XFRM | |
677 | static int cap_xfrm_policy_alloc_security(struct xfrm_sec_ctx **ctxp, | |
678 | struct xfrm_user_sec_ctx *sec_ctx) | |
679 | { | |
680 | return 0; | |
681 | } | |
682 | ||
683 | static int cap_xfrm_policy_clone_security(struct xfrm_sec_ctx *old_ctx, | |
684 | struct xfrm_sec_ctx **new_ctxp) | |
685 | { | |
686 | return 0; | |
687 | } | |
688 | ||
689 | static void cap_xfrm_policy_free_security(struct xfrm_sec_ctx *ctx) | |
690 | { | |
691 | } | |
692 | ||
693 | static int cap_xfrm_policy_delete_security(struct xfrm_sec_ctx *ctx) | |
694 | { | |
695 | return 0; | |
696 | } | |
697 | ||
698 | static int cap_xfrm_state_alloc_security(struct xfrm_state *x, | |
699 | struct xfrm_user_sec_ctx *sec_ctx, | |
700 | u32 secid) | |
701 | { | |
702 | return 0; | |
703 | } | |
704 | ||
705 | static void cap_xfrm_state_free_security(struct xfrm_state *x) | |
706 | { | |
707 | } | |
708 | ||
709 | static int cap_xfrm_state_delete_security(struct xfrm_state *x) | |
710 | { | |
711 | return 0; | |
712 | } | |
713 | ||
714 | static int cap_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 sk_sid, u8 dir) | |
715 | { | |
716 | return 0; | |
717 | } | |
718 | ||
719 | static int cap_xfrm_state_pol_flow_match(struct xfrm_state *x, | |
720 | struct xfrm_policy *xp, | |
721 | struct flowi *fl) | |
722 | { | |
723 | return 1; | |
724 | } | |
725 | ||
726 | static int cap_xfrm_decode_session(struct sk_buff *skb, u32 *fl, int ckall) | |
727 | { | |
728 | return 0; | |
729 | } | |
730 | ||
731 | #endif /* CONFIG_SECURITY_NETWORK_XFRM */ | |
5915eb53 MS |
732 | static void cap_d_instantiate(struct dentry *dentry, struct inode *inode) |
733 | { | |
734 | } | |
735 | ||
736 | static int cap_getprocattr(struct task_struct *p, char *name, char **value) | |
737 | { | |
738 | return -EINVAL; | |
739 | } | |
740 | ||
741 | static int cap_setprocattr(struct task_struct *p, char *name, void *value, | |
742 | size_t size) | |
743 | { | |
744 | return -EINVAL; | |
745 | } | |
746 | ||
747 | static int cap_secid_to_secctx(u32 secid, char **secdata, u32 *seclen) | |
748 | { | |
749 | return -EOPNOTSUPP; | |
750 | } | |
751 | ||
752 | static int cap_secctx_to_secid(const char *secdata, u32 seclen, u32 *secid) | |
753 | { | |
754 | return -EOPNOTSUPP; | |
755 | } | |
756 | ||
757 | static void cap_release_secctx(char *secdata, u32 seclen) | |
758 | { | |
759 | } | |
760 | ||
761 | #ifdef CONFIG_KEYS | |
d84f4f99 | 762 | static int cap_key_alloc(struct key *key, const struct cred *cred, |
5915eb53 MS |
763 | unsigned long flags) |
764 | { | |
765 | return 0; | |
766 | } | |
767 | ||
768 | static void cap_key_free(struct key *key) | |
769 | { | |
770 | } | |
771 | ||
d84f4f99 | 772 | static int cap_key_permission(key_ref_t key_ref, const struct cred *cred, |
5915eb53 MS |
773 | key_perm_t perm) |
774 | { | |
775 | return 0; | |
776 | } | |
777 | ||
778 | static int cap_key_getsecurity(struct key *key, char **_buffer) | |
779 | { | |
780 | *_buffer = NULL; | |
781 | return 0; | |
782 | } | |
783 | ||
784 | #endif /* CONFIG_KEYS */ | |
785 | ||
786 | #ifdef CONFIG_AUDIT | |
787 | static int cap_audit_rule_init(u32 field, u32 op, char *rulestr, void **lsmrule) | |
788 | { | |
789 | return 0; | |
790 | } | |
791 | ||
792 | static int cap_audit_rule_known(struct audit_krule *krule) | |
793 | { | |
794 | return 0; | |
795 | } | |
796 | ||
797 | static int cap_audit_rule_match(u32 secid, u32 field, u32 op, void *lsmrule, | |
798 | struct audit_context *actx) | |
799 | { | |
800 | return 0; | |
801 | } | |
802 | ||
803 | static void cap_audit_rule_free(void *lsmrule) | |
804 | { | |
805 | } | |
806 | #endif /* CONFIG_AUDIT */ | |
807 | ||
808 | struct security_operations default_security_ops = { | |
809 | .name = "default", | |
810 | }; | |
811 | ||
812 | #define set_to_cap_if_null(ops, function) \ | |
813 | do { \ | |
814 | if (!ops->function) { \ | |
815 | ops->function = cap_##function; \ | |
816 | pr_debug("Had to override the " #function \ | |
817 | " security operation with the default.\n");\ | |
818 | } \ | |
819 | } while (0) | |
820 | ||
821 | void security_fixup_ops(struct security_operations *ops) | |
822 | { | |
5cd9c58f DH |
823 | set_to_cap_if_null(ops, ptrace_may_access); |
824 | set_to_cap_if_null(ops, ptrace_traceme); | |
5915eb53 | 825 | set_to_cap_if_null(ops, capget); |
d84f4f99 | 826 | set_to_cap_if_null(ops, capset); |
5915eb53 MS |
827 | set_to_cap_if_null(ops, acct); |
828 | set_to_cap_if_null(ops, capable); | |
829 | set_to_cap_if_null(ops, quotactl); | |
830 | set_to_cap_if_null(ops, quota_on); | |
831 | set_to_cap_if_null(ops, sysctl); | |
832 | set_to_cap_if_null(ops, syslog); | |
833 | set_to_cap_if_null(ops, settime); | |
834 | set_to_cap_if_null(ops, vm_enough_memory); | |
a6f76f23 DH |
835 | set_to_cap_if_null(ops, bprm_set_creds); |
836 | set_to_cap_if_null(ops, bprm_committing_creds); | |
837 | set_to_cap_if_null(ops, bprm_committed_creds); | |
5915eb53 MS |
838 | set_to_cap_if_null(ops, bprm_check_security); |
839 | set_to_cap_if_null(ops, bprm_secureexec); | |
840 | set_to_cap_if_null(ops, sb_alloc_security); | |
841 | set_to_cap_if_null(ops, sb_free_security); | |
842 | set_to_cap_if_null(ops, sb_copy_data); | |
843 | set_to_cap_if_null(ops, sb_kern_mount); | |
844 | set_to_cap_if_null(ops, sb_show_options); | |
845 | set_to_cap_if_null(ops, sb_statfs); | |
846 | set_to_cap_if_null(ops, sb_mount); | |
847 | set_to_cap_if_null(ops, sb_check_sb); | |
848 | set_to_cap_if_null(ops, sb_umount); | |
849 | set_to_cap_if_null(ops, sb_umount_close); | |
850 | set_to_cap_if_null(ops, sb_umount_busy); | |
851 | set_to_cap_if_null(ops, sb_post_remount); | |
852 | set_to_cap_if_null(ops, sb_post_addmount); | |
853 | set_to_cap_if_null(ops, sb_pivotroot); | |
854 | set_to_cap_if_null(ops, sb_post_pivotroot); | |
855 | set_to_cap_if_null(ops, sb_set_mnt_opts); | |
856 | set_to_cap_if_null(ops, sb_clone_mnt_opts); | |
857 | set_to_cap_if_null(ops, sb_parse_opts_str); | |
858 | set_to_cap_if_null(ops, inode_alloc_security); | |
859 | set_to_cap_if_null(ops, inode_free_security); | |
860 | set_to_cap_if_null(ops, inode_init_security); | |
861 | set_to_cap_if_null(ops, inode_create); | |
862 | set_to_cap_if_null(ops, inode_link); | |
863 | set_to_cap_if_null(ops, inode_unlink); | |
864 | set_to_cap_if_null(ops, inode_symlink); | |
865 | set_to_cap_if_null(ops, inode_mkdir); | |
866 | set_to_cap_if_null(ops, inode_rmdir); | |
867 | set_to_cap_if_null(ops, inode_mknod); | |
868 | set_to_cap_if_null(ops, inode_rename); | |
869 | set_to_cap_if_null(ops, inode_readlink); | |
870 | set_to_cap_if_null(ops, inode_follow_link); | |
871 | set_to_cap_if_null(ops, inode_permission); | |
872 | set_to_cap_if_null(ops, inode_setattr); | |
873 | set_to_cap_if_null(ops, inode_getattr); | |
874 | set_to_cap_if_null(ops, inode_delete); | |
875 | set_to_cap_if_null(ops, inode_setxattr); | |
876 | set_to_cap_if_null(ops, inode_post_setxattr); | |
877 | set_to_cap_if_null(ops, inode_getxattr); | |
878 | set_to_cap_if_null(ops, inode_listxattr); | |
879 | set_to_cap_if_null(ops, inode_removexattr); | |
880 | set_to_cap_if_null(ops, inode_need_killpriv); | |
881 | set_to_cap_if_null(ops, inode_killpriv); | |
882 | set_to_cap_if_null(ops, inode_getsecurity); | |
883 | set_to_cap_if_null(ops, inode_setsecurity); | |
884 | set_to_cap_if_null(ops, inode_listsecurity); | |
885 | set_to_cap_if_null(ops, inode_getsecid); | |
886 | set_to_cap_if_null(ops, file_permission); | |
887 | set_to_cap_if_null(ops, file_alloc_security); | |
888 | set_to_cap_if_null(ops, file_free_security); | |
889 | set_to_cap_if_null(ops, file_ioctl); | |
890 | set_to_cap_if_null(ops, file_mmap); | |
891 | set_to_cap_if_null(ops, file_mprotect); | |
892 | set_to_cap_if_null(ops, file_lock); | |
893 | set_to_cap_if_null(ops, file_fcntl); | |
894 | set_to_cap_if_null(ops, file_set_fowner); | |
895 | set_to_cap_if_null(ops, file_send_sigiotask); | |
896 | set_to_cap_if_null(ops, file_receive); | |
897 | set_to_cap_if_null(ops, dentry_open); | |
898 | set_to_cap_if_null(ops, task_create); | |
f1752eec | 899 | set_to_cap_if_null(ops, cred_free); |
d84f4f99 DH |
900 | set_to_cap_if_null(ops, cred_prepare); |
901 | set_to_cap_if_null(ops, cred_commit); | |
3a3b7ce9 DH |
902 | set_to_cap_if_null(ops, kernel_act_as); |
903 | set_to_cap_if_null(ops, kernel_create_files_as); | |
5915eb53 | 904 | set_to_cap_if_null(ops, task_setuid); |
d84f4f99 | 905 | set_to_cap_if_null(ops, task_fix_setuid); |
5915eb53 MS |
906 | set_to_cap_if_null(ops, task_setgid); |
907 | set_to_cap_if_null(ops, task_setpgid); | |
908 | set_to_cap_if_null(ops, task_getpgid); | |
909 | set_to_cap_if_null(ops, task_getsid); | |
910 | set_to_cap_if_null(ops, task_getsecid); | |
911 | set_to_cap_if_null(ops, task_setgroups); | |
912 | set_to_cap_if_null(ops, task_setnice); | |
913 | set_to_cap_if_null(ops, task_setioprio); | |
914 | set_to_cap_if_null(ops, task_getioprio); | |
915 | set_to_cap_if_null(ops, task_setrlimit); | |
916 | set_to_cap_if_null(ops, task_setscheduler); | |
917 | set_to_cap_if_null(ops, task_getscheduler); | |
918 | set_to_cap_if_null(ops, task_movememory); | |
919 | set_to_cap_if_null(ops, task_wait); | |
920 | set_to_cap_if_null(ops, task_kill); | |
921 | set_to_cap_if_null(ops, task_prctl); | |
5915eb53 MS |
922 | set_to_cap_if_null(ops, task_to_inode); |
923 | set_to_cap_if_null(ops, ipc_permission); | |
924 | set_to_cap_if_null(ops, ipc_getsecid); | |
925 | set_to_cap_if_null(ops, msg_msg_alloc_security); | |
926 | set_to_cap_if_null(ops, msg_msg_free_security); | |
927 | set_to_cap_if_null(ops, msg_queue_alloc_security); | |
928 | set_to_cap_if_null(ops, msg_queue_free_security); | |
929 | set_to_cap_if_null(ops, msg_queue_associate); | |
930 | set_to_cap_if_null(ops, msg_queue_msgctl); | |
931 | set_to_cap_if_null(ops, msg_queue_msgsnd); | |
932 | set_to_cap_if_null(ops, msg_queue_msgrcv); | |
933 | set_to_cap_if_null(ops, shm_alloc_security); | |
934 | set_to_cap_if_null(ops, shm_free_security); | |
935 | set_to_cap_if_null(ops, shm_associate); | |
936 | set_to_cap_if_null(ops, shm_shmctl); | |
937 | set_to_cap_if_null(ops, shm_shmat); | |
938 | set_to_cap_if_null(ops, sem_alloc_security); | |
939 | set_to_cap_if_null(ops, sem_free_security); | |
940 | set_to_cap_if_null(ops, sem_associate); | |
941 | set_to_cap_if_null(ops, sem_semctl); | |
942 | set_to_cap_if_null(ops, sem_semop); | |
943 | set_to_cap_if_null(ops, netlink_send); | |
944 | set_to_cap_if_null(ops, netlink_recv); | |
5915eb53 MS |
945 | set_to_cap_if_null(ops, d_instantiate); |
946 | set_to_cap_if_null(ops, getprocattr); | |
947 | set_to_cap_if_null(ops, setprocattr); | |
948 | set_to_cap_if_null(ops, secid_to_secctx); | |
949 | set_to_cap_if_null(ops, secctx_to_secid); | |
950 | set_to_cap_if_null(ops, release_secctx); | |
951 | #ifdef CONFIG_SECURITY_NETWORK | |
952 | set_to_cap_if_null(ops, unix_stream_connect); | |
953 | set_to_cap_if_null(ops, unix_may_send); | |
954 | set_to_cap_if_null(ops, socket_create); | |
955 | set_to_cap_if_null(ops, socket_post_create); | |
956 | set_to_cap_if_null(ops, socket_bind); | |
957 | set_to_cap_if_null(ops, socket_connect); | |
958 | set_to_cap_if_null(ops, socket_listen); | |
959 | set_to_cap_if_null(ops, socket_accept); | |
960 | set_to_cap_if_null(ops, socket_post_accept); | |
961 | set_to_cap_if_null(ops, socket_sendmsg); | |
962 | set_to_cap_if_null(ops, socket_recvmsg); | |
963 | set_to_cap_if_null(ops, socket_getsockname); | |
964 | set_to_cap_if_null(ops, socket_getpeername); | |
965 | set_to_cap_if_null(ops, socket_setsockopt); | |
966 | set_to_cap_if_null(ops, socket_getsockopt); | |
967 | set_to_cap_if_null(ops, socket_shutdown); | |
968 | set_to_cap_if_null(ops, socket_sock_rcv_skb); | |
969 | set_to_cap_if_null(ops, socket_getpeersec_stream); | |
970 | set_to_cap_if_null(ops, socket_getpeersec_dgram); | |
971 | set_to_cap_if_null(ops, sk_alloc_security); | |
972 | set_to_cap_if_null(ops, sk_free_security); | |
973 | set_to_cap_if_null(ops, sk_clone_security); | |
974 | set_to_cap_if_null(ops, sk_getsecid); | |
975 | set_to_cap_if_null(ops, sock_graft); | |
976 | set_to_cap_if_null(ops, inet_conn_request); | |
977 | set_to_cap_if_null(ops, inet_csk_clone); | |
978 | set_to_cap_if_null(ops, inet_conn_established); | |
979 | set_to_cap_if_null(ops, req_classify_flow); | |
980 | #endif /* CONFIG_SECURITY_NETWORK */ | |
981 | #ifdef CONFIG_SECURITY_NETWORK_XFRM | |
982 | set_to_cap_if_null(ops, xfrm_policy_alloc_security); | |
983 | set_to_cap_if_null(ops, xfrm_policy_clone_security); | |
984 | set_to_cap_if_null(ops, xfrm_policy_free_security); | |
985 | set_to_cap_if_null(ops, xfrm_policy_delete_security); | |
986 | set_to_cap_if_null(ops, xfrm_state_alloc_security); | |
987 | set_to_cap_if_null(ops, xfrm_state_free_security); | |
988 | set_to_cap_if_null(ops, xfrm_state_delete_security); | |
989 | set_to_cap_if_null(ops, xfrm_policy_lookup); | |
990 | set_to_cap_if_null(ops, xfrm_state_pol_flow_match); | |
991 | set_to_cap_if_null(ops, xfrm_decode_session); | |
992 | #endif /* CONFIG_SECURITY_NETWORK_XFRM */ | |
993 | #ifdef CONFIG_KEYS | |
994 | set_to_cap_if_null(ops, key_alloc); | |
995 | set_to_cap_if_null(ops, key_free); | |
996 | set_to_cap_if_null(ops, key_permission); | |
997 | set_to_cap_if_null(ops, key_getsecurity); | |
998 | #endif /* CONFIG_KEYS */ | |
999 | #ifdef CONFIG_AUDIT | |
1000 | set_to_cap_if_null(ops, audit_rule_init); | |
1001 | set_to_cap_if_null(ops, audit_rule_known); | |
1002 | set_to_cap_if_null(ops, audit_rule_match); | |
1003 | set_to_cap_if_null(ops, audit_rule_free); | |
1004 | #endif | |
1005 | } |