Commit | Line | Data |
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1da177e4 LT |
1 | /* |
2 | * Stub functions for the default security function pointers in case no | |
3 | * security model is loaded. | |
4 | * | |
5 | * Copyright (C) 2001 WireX Communications, Inc <chris@wirex.com> | |
6 | * Copyright (C) 2001-2002 Greg Kroah-Hartman <greg@kroah.com> | |
7 | * Copyright (C) 2001 Networks Associates Technology, Inc <ssmalley@nai.com> | |
8 | * | |
9 | * This program is free software; you can redistribute it and/or modify | |
10 | * it under the terms of the GNU General Public License as published by | |
11 | * the Free Software Foundation; either version 2 of the License, or | |
12 | * (at your option) any later version. | |
13 | */ | |
14 | ||
15 | #undef DEBUG | |
16 | ||
17 | #include <linux/config.h> | |
18 | #include <linux/module.h> | |
19 | #include <linux/kernel.h> | |
20 | #include <linux/mman.h> | |
21 | #include <linux/pagemap.h> | |
22 | #include <linux/swap.h> | |
23 | #include <linux/security.h> | |
24 | #include <linux/skbuff.h> | |
25 | #include <linux/netlink.h> | |
26 | #include <net/sock.h> | |
27 | #include <linux/xattr.h> | |
28 | #include <linux/hugetlb.h> | |
29 | #include <linux/ptrace.h> | |
30 | #include <linux/file.h> | |
31 | ||
32 | static int dummy_ptrace (struct task_struct *parent, struct task_struct *child) | |
33 | { | |
34 | return 0; | |
35 | } | |
36 | ||
37 | static int dummy_capget (struct task_struct *target, kernel_cap_t * effective, | |
38 | kernel_cap_t * inheritable, kernel_cap_t * permitted) | |
39 | { | |
40 | *effective = *inheritable = *permitted = 0; | |
41 | if (!issecure(SECURE_NOROOT)) { | |
42 | if (target->euid == 0) { | |
43 | *permitted |= (~0 & ~CAP_FS_MASK); | |
44 | *effective |= (~0 & ~CAP_TO_MASK(CAP_SETPCAP) & ~CAP_FS_MASK); | |
45 | } | |
46 | if (target->fsuid == 0) { | |
47 | *permitted |= CAP_FS_MASK; | |
48 | *effective |= CAP_FS_MASK; | |
49 | } | |
50 | } | |
51 | return 0; | |
52 | } | |
53 | ||
54 | static int dummy_capset_check (struct task_struct *target, | |
55 | kernel_cap_t * effective, | |
56 | kernel_cap_t * inheritable, | |
57 | kernel_cap_t * permitted) | |
58 | { | |
59 | return -EPERM; | |
60 | } | |
61 | ||
62 | static void dummy_capset_set (struct task_struct *target, | |
63 | kernel_cap_t * effective, | |
64 | kernel_cap_t * inheritable, | |
65 | kernel_cap_t * permitted) | |
66 | { | |
67 | return; | |
68 | } | |
69 | ||
70 | static int dummy_acct (struct file *file) | |
71 | { | |
72 | return 0; | |
73 | } | |
74 | ||
75 | static int dummy_capable (struct task_struct *tsk, int cap) | |
76 | { | |
77 | if (cap_raised (tsk->cap_effective, cap)) | |
78 | return 0; | |
79 | return -EPERM; | |
80 | } | |
81 | ||
82 | static int dummy_sysctl (ctl_table * table, int op) | |
83 | { | |
84 | return 0; | |
85 | } | |
86 | ||
87 | static int dummy_quotactl (int cmds, int type, int id, struct super_block *sb) | |
88 | { | |
89 | return 0; | |
90 | } | |
91 | ||
92 | static int dummy_quota_on (struct dentry *dentry) | |
93 | { | |
94 | return 0; | |
95 | } | |
96 | ||
97 | static int dummy_syslog (int type) | |
98 | { | |
99 | if ((type != 3 && type != 10) && current->euid) | |
100 | return -EPERM; | |
101 | return 0; | |
102 | } | |
103 | ||
104 | static int dummy_settime(struct timespec *ts, struct timezone *tz) | |
105 | { | |
106 | if (!capable(CAP_SYS_TIME)) | |
107 | return -EPERM; | |
108 | return 0; | |
109 | } | |
110 | ||
111 | static int dummy_vm_enough_memory(long pages) | |
112 | { | |
113 | int cap_sys_admin = 0; | |
114 | ||
115 | if (dummy_capable(current, CAP_SYS_ADMIN) == 0) | |
116 | cap_sys_admin = 1; | |
117 | return __vm_enough_memory(pages, cap_sys_admin); | |
118 | } | |
119 | ||
120 | static int dummy_bprm_alloc_security (struct linux_binprm *bprm) | |
121 | { | |
122 | return 0; | |
123 | } | |
124 | ||
125 | static void dummy_bprm_free_security (struct linux_binprm *bprm) | |
126 | { | |
127 | return; | |
128 | } | |
129 | ||
130 | static void dummy_bprm_apply_creds (struct linux_binprm *bprm, int unsafe) | |
131 | { | |
132 | if (bprm->e_uid != current->uid || bprm->e_gid != current->gid) { | |
d6e71144 | 133 | current->mm->dumpable = suid_dumpable; |
1da177e4 LT |
134 | |
135 | if ((unsafe & ~LSM_UNSAFE_PTRACE_CAP) && !capable(CAP_SETUID)) { | |
136 | bprm->e_uid = current->uid; | |
137 | bprm->e_gid = current->gid; | |
138 | } | |
139 | } | |
140 | ||
141 | current->suid = current->euid = current->fsuid = bprm->e_uid; | |
142 | current->sgid = current->egid = current->fsgid = bprm->e_gid; | |
143 | ||
144 | dummy_capget(current, ¤t->cap_effective, ¤t->cap_inheritable, ¤t->cap_permitted); | |
145 | } | |
146 | ||
147 | static void dummy_bprm_post_apply_creds (struct linux_binprm *bprm) | |
148 | { | |
149 | return; | |
150 | } | |
151 | ||
152 | static int dummy_bprm_set_security (struct linux_binprm *bprm) | |
153 | { | |
154 | return 0; | |
155 | } | |
156 | ||
157 | static int dummy_bprm_check_security (struct linux_binprm *bprm) | |
158 | { | |
159 | return 0; | |
160 | } | |
161 | ||
162 | static int dummy_bprm_secureexec (struct linux_binprm *bprm) | |
163 | { | |
164 | /* The new userland will simply use the value provided | |
165 | in the AT_SECURE field to decide whether secure mode | |
166 | is required. Hence, this logic is required to preserve | |
167 | the legacy decision algorithm used by the old userland. */ | |
168 | return (current->euid != current->uid || | |
169 | current->egid != current->gid); | |
170 | } | |
171 | ||
172 | static int dummy_sb_alloc_security (struct super_block *sb) | |
173 | { | |
174 | return 0; | |
175 | } | |
176 | ||
177 | static void dummy_sb_free_security (struct super_block *sb) | |
178 | { | |
179 | return; | |
180 | } | |
181 | ||
182 | static int dummy_sb_copy_data (struct file_system_type *type, | |
183 | void *orig, void *copy) | |
184 | { | |
185 | return 0; | |
186 | } | |
187 | ||
188 | static int dummy_sb_kern_mount (struct super_block *sb, void *data) | |
189 | { | |
190 | return 0; | |
191 | } | |
192 | ||
193 | static int dummy_sb_statfs (struct super_block *sb) | |
194 | { | |
195 | return 0; | |
196 | } | |
197 | ||
198 | static int dummy_sb_mount (char *dev_name, struct nameidata *nd, char *type, | |
199 | unsigned long flags, void *data) | |
200 | { | |
201 | return 0; | |
202 | } | |
203 | ||
204 | static int dummy_sb_check_sb (struct vfsmount *mnt, struct nameidata *nd) | |
205 | { | |
206 | return 0; | |
207 | } | |
208 | ||
209 | static int dummy_sb_umount (struct vfsmount *mnt, int flags) | |
210 | { | |
211 | return 0; | |
212 | } | |
213 | ||
214 | static void dummy_sb_umount_close (struct vfsmount *mnt) | |
215 | { | |
216 | return; | |
217 | } | |
218 | ||
219 | static void dummy_sb_umount_busy (struct vfsmount *mnt) | |
220 | { | |
221 | return; | |
222 | } | |
223 | ||
224 | static void dummy_sb_post_remount (struct vfsmount *mnt, unsigned long flags, | |
225 | void *data) | |
226 | { | |
227 | return; | |
228 | } | |
229 | ||
230 | ||
231 | static void dummy_sb_post_mountroot (void) | |
232 | { | |
233 | return; | |
234 | } | |
235 | ||
236 | static void dummy_sb_post_addmount (struct vfsmount *mnt, struct nameidata *nd) | |
237 | { | |
238 | return; | |
239 | } | |
240 | ||
241 | static int dummy_sb_pivotroot (struct nameidata *old_nd, struct nameidata *new_nd) | |
242 | { | |
243 | return 0; | |
244 | } | |
245 | ||
246 | static void dummy_sb_post_pivotroot (struct nameidata *old_nd, struct nameidata *new_nd) | |
247 | { | |
248 | return; | |
249 | } | |
250 | ||
251 | static int dummy_inode_alloc_security (struct inode *inode) | |
252 | { | |
253 | return 0; | |
254 | } | |
255 | ||
256 | static void dummy_inode_free_security (struct inode *inode) | |
257 | { | |
258 | return; | |
259 | } | |
260 | ||
5e41ff9e SS |
261 | static int dummy_inode_init_security (struct inode *inode, struct inode *dir, |
262 | char **name, void **value, size_t *len) | |
263 | { | |
264 | return -EOPNOTSUPP; | |
265 | } | |
266 | ||
1da177e4 LT |
267 | static int dummy_inode_create (struct inode *inode, struct dentry *dentry, |
268 | int mask) | |
269 | { | |
270 | return 0; | |
271 | } | |
272 | ||
1da177e4 LT |
273 | static int dummy_inode_link (struct dentry *old_dentry, struct inode *inode, |
274 | struct dentry *new_dentry) | |
275 | { | |
276 | return 0; | |
277 | } | |
278 | ||
279 | static void dummy_inode_post_link (struct dentry *old_dentry, | |
280 | struct inode *inode, | |
281 | struct dentry *new_dentry) | |
282 | { | |
283 | return; | |
284 | } | |
285 | ||
286 | static int dummy_inode_unlink (struct inode *inode, struct dentry *dentry) | |
287 | { | |
288 | return 0; | |
289 | } | |
290 | ||
291 | static int dummy_inode_symlink (struct inode *inode, struct dentry *dentry, | |
292 | const char *name) | |
293 | { | |
294 | return 0; | |
295 | } | |
296 | ||
1da177e4 LT |
297 | static int dummy_inode_mkdir (struct inode *inode, struct dentry *dentry, |
298 | int mask) | |
299 | { | |
300 | return 0; | |
301 | } | |
302 | ||
1da177e4 LT |
303 | static int dummy_inode_rmdir (struct inode *inode, struct dentry *dentry) |
304 | { | |
305 | return 0; | |
306 | } | |
307 | ||
308 | static int dummy_inode_mknod (struct inode *inode, struct dentry *dentry, | |
309 | int mode, dev_t dev) | |
310 | { | |
311 | return 0; | |
312 | } | |
313 | ||
1da177e4 LT |
314 | static int dummy_inode_rename (struct inode *old_inode, |
315 | struct dentry *old_dentry, | |
316 | struct inode *new_inode, | |
317 | struct dentry *new_dentry) | |
318 | { | |
319 | return 0; | |
320 | } | |
321 | ||
322 | static void dummy_inode_post_rename (struct inode *old_inode, | |
323 | struct dentry *old_dentry, | |
324 | struct inode *new_inode, | |
325 | struct dentry *new_dentry) | |
326 | { | |
327 | return; | |
328 | } | |
329 | ||
330 | static int dummy_inode_readlink (struct dentry *dentry) | |
331 | { | |
332 | return 0; | |
333 | } | |
334 | ||
335 | static int dummy_inode_follow_link (struct dentry *dentry, | |
336 | struct nameidata *nameidata) | |
337 | { | |
338 | return 0; | |
339 | } | |
340 | ||
341 | static int dummy_inode_permission (struct inode *inode, int mask, struct nameidata *nd) | |
342 | { | |
343 | return 0; | |
344 | } | |
345 | ||
346 | static int dummy_inode_setattr (struct dentry *dentry, struct iattr *iattr) | |
347 | { | |
348 | return 0; | |
349 | } | |
350 | ||
351 | static int dummy_inode_getattr (struct vfsmount *mnt, struct dentry *dentry) | |
352 | { | |
353 | return 0; | |
354 | } | |
355 | ||
356 | static void dummy_inode_delete (struct inode *ino) | |
357 | { | |
358 | return; | |
359 | } | |
360 | ||
361 | static int dummy_inode_setxattr (struct dentry *dentry, char *name, void *value, | |
362 | size_t size, int flags) | |
363 | { | |
364 | if (!strncmp(name, XATTR_SECURITY_PREFIX, | |
365 | sizeof(XATTR_SECURITY_PREFIX) - 1) && | |
366 | !capable(CAP_SYS_ADMIN)) | |
367 | return -EPERM; | |
368 | return 0; | |
369 | } | |
370 | ||
371 | static void dummy_inode_post_setxattr (struct dentry *dentry, char *name, void *value, | |
372 | size_t size, int flags) | |
373 | { | |
374 | } | |
375 | ||
376 | static int dummy_inode_getxattr (struct dentry *dentry, char *name) | |
377 | { | |
378 | return 0; | |
379 | } | |
380 | ||
381 | static int dummy_inode_listxattr (struct dentry *dentry) | |
382 | { | |
383 | return 0; | |
384 | } | |
385 | ||
386 | static int dummy_inode_removexattr (struct dentry *dentry, char *name) | |
387 | { | |
388 | if (!strncmp(name, XATTR_SECURITY_PREFIX, | |
389 | sizeof(XATTR_SECURITY_PREFIX) - 1) && | |
390 | !capable(CAP_SYS_ADMIN)) | |
391 | return -EPERM; | |
392 | return 0; | |
393 | } | |
394 | ||
395 | static int dummy_inode_getsecurity(struct inode *inode, const char *name, void *buffer, size_t size) | |
396 | { | |
397 | return -EOPNOTSUPP; | |
398 | } | |
399 | ||
400 | static int dummy_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags) | |
401 | { | |
402 | return -EOPNOTSUPP; | |
403 | } | |
404 | ||
405 | static int dummy_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size) | |
406 | { | |
407 | return 0; | |
408 | } | |
409 | ||
410 | static int dummy_file_permission (struct file *file, int mask) | |
411 | { | |
412 | return 0; | |
413 | } | |
414 | ||
415 | static int dummy_file_alloc_security (struct file *file) | |
416 | { | |
417 | return 0; | |
418 | } | |
419 | ||
420 | static void dummy_file_free_security (struct file *file) | |
421 | { | |
422 | return; | |
423 | } | |
424 | ||
425 | static int dummy_file_ioctl (struct file *file, unsigned int command, | |
426 | unsigned long arg) | |
427 | { | |
428 | return 0; | |
429 | } | |
430 | ||
431 | static int dummy_file_mmap (struct file *file, unsigned long reqprot, | |
432 | unsigned long prot, | |
433 | unsigned long flags) | |
434 | { | |
435 | return 0; | |
436 | } | |
437 | ||
438 | static int dummy_file_mprotect (struct vm_area_struct *vma, | |
439 | unsigned long reqprot, | |
440 | unsigned long prot) | |
441 | { | |
442 | return 0; | |
443 | } | |
444 | ||
445 | static int dummy_file_lock (struct file *file, unsigned int cmd) | |
446 | { | |
447 | return 0; | |
448 | } | |
449 | ||
450 | static int dummy_file_fcntl (struct file *file, unsigned int cmd, | |
451 | unsigned long arg) | |
452 | { | |
453 | return 0; | |
454 | } | |
455 | ||
456 | static int dummy_file_set_fowner (struct file *file) | |
457 | { | |
458 | return 0; | |
459 | } | |
460 | ||
461 | static int dummy_file_send_sigiotask (struct task_struct *tsk, | |
462 | struct fown_struct *fown, int sig) | |
463 | { | |
464 | return 0; | |
465 | } | |
466 | ||
467 | static int dummy_file_receive (struct file *file) | |
468 | { | |
469 | return 0; | |
470 | } | |
471 | ||
472 | static int dummy_task_create (unsigned long clone_flags) | |
473 | { | |
474 | return 0; | |
475 | } | |
476 | ||
477 | static int dummy_task_alloc_security (struct task_struct *p) | |
478 | { | |
479 | return 0; | |
480 | } | |
481 | ||
482 | static void dummy_task_free_security (struct task_struct *p) | |
483 | { | |
484 | return; | |
485 | } | |
486 | ||
487 | static int dummy_task_setuid (uid_t id0, uid_t id1, uid_t id2, int flags) | |
488 | { | |
489 | return 0; | |
490 | } | |
491 | ||
492 | static int dummy_task_post_setuid (uid_t id0, uid_t id1, uid_t id2, int flags) | |
493 | { | |
494 | dummy_capget(current, ¤t->cap_effective, ¤t->cap_inheritable, ¤t->cap_permitted); | |
495 | return 0; | |
496 | } | |
497 | ||
498 | static int dummy_task_setgid (gid_t id0, gid_t id1, gid_t id2, int flags) | |
499 | { | |
500 | return 0; | |
501 | } | |
502 | ||
503 | static int dummy_task_setpgid (struct task_struct *p, pid_t pgid) | |
504 | { | |
505 | return 0; | |
506 | } | |
507 | ||
508 | static int dummy_task_getpgid (struct task_struct *p) | |
509 | { | |
510 | return 0; | |
511 | } | |
512 | ||
513 | static int dummy_task_getsid (struct task_struct *p) | |
514 | { | |
515 | return 0; | |
516 | } | |
517 | ||
518 | static int dummy_task_setgroups (struct group_info *group_info) | |
519 | { | |
520 | return 0; | |
521 | } | |
522 | ||
523 | static int dummy_task_setnice (struct task_struct *p, int nice) | |
524 | { | |
525 | return 0; | |
526 | } | |
527 | ||
528 | static int dummy_task_setrlimit (unsigned int resource, struct rlimit *new_rlim) | |
529 | { | |
530 | return 0; | |
531 | } | |
532 | ||
533 | static int dummy_task_setscheduler (struct task_struct *p, int policy, | |
534 | struct sched_param *lp) | |
535 | { | |
536 | return 0; | |
537 | } | |
538 | ||
539 | static int dummy_task_getscheduler (struct task_struct *p) | |
540 | { | |
541 | return 0; | |
542 | } | |
543 | ||
544 | static int dummy_task_wait (struct task_struct *p) | |
545 | { | |
546 | return 0; | |
547 | } | |
548 | ||
549 | static int dummy_task_kill (struct task_struct *p, struct siginfo *info, | |
550 | int sig) | |
551 | { | |
552 | return 0; | |
553 | } | |
554 | ||
555 | static int dummy_task_prctl (int option, unsigned long arg2, unsigned long arg3, | |
556 | unsigned long arg4, unsigned long arg5) | |
557 | { | |
558 | return 0; | |
559 | } | |
560 | ||
561 | static void dummy_task_reparent_to_init (struct task_struct *p) | |
562 | { | |
563 | p->euid = p->fsuid = 0; | |
564 | return; | |
565 | } | |
566 | ||
567 | static void dummy_task_to_inode(struct task_struct *p, struct inode *inode) | |
568 | { } | |
569 | ||
570 | static int dummy_ipc_permission (struct kern_ipc_perm *ipcp, short flag) | |
571 | { | |
572 | return 0; | |
573 | } | |
574 | ||
575 | static int dummy_msg_msg_alloc_security (struct msg_msg *msg) | |
576 | { | |
577 | return 0; | |
578 | } | |
579 | ||
580 | static void dummy_msg_msg_free_security (struct msg_msg *msg) | |
581 | { | |
582 | return; | |
583 | } | |
584 | ||
585 | static int dummy_msg_queue_alloc_security (struct msg_queue *msq) | |
586 | { | |
587 | return 0; | |
588 | } | |
589 | ||
590 | static void dummy_msg_queue_free_security (struct msg_queue *msq) | |
591 | { | |
592 | return; | |
593 | } | |
594 | ||
595 | static int dummy_msg_queue_associate (struct msg_queue *msq, | |
596 | int msqflg) | |
597 | { | |
598 | return 0; | |
599 | } | |
600 | ||
601 | static int dummy_msg_queue_msgctl (struct msg_queue *msq, int cmd) | |
602 | { | |
603 | return 0; | |
604 | } | |
605 | ||
606 | static int dummy_msg_queue_msgsnd (struct msg_queue *msq, struct msg_msg *msg, | |
607 | int msgflg) | |
608 | { | |
609 | return 0; | |
610 | } | |
611 | ||
612 | static int dummy_msg_queue_msgrcv (struct msg_queue *msq, struct msg_msg *msg, | |
613 | struct task_struct *target, long type, | |
614 | int mode) | |
615 | { | |
616 | return 0; | |
617 | } | |
618 | ||
619 | static int dummy_shm_alloc_security (struct shmid_kernel *shp) | |
620 | { | |
621 | return 0; | |
622 | } | |
623 | ||
624 | static void dummy_shm_free_security (struct shmid_kernel *shp) | |
625 | { | |
626 | return; | |
627 | } | |
628 | ||
629 | static int dummy_shm_associate (struct shmid_kernel *shp, int shmflg) | |
630 | { | |
631 | return 0; | |
632 | } | |
633 | ||
634 | static int dummy_shm_shmctl (struct shmid_kernel *shp, int cmd) | |
635 | { | |
636 | return 0; | |
637 | } | |
638 | ||
639 | static int dummy_shm_shmat (struct shmid_kernel *shp, char __user *shmaddr, | |
640 | int shmflg) | |
641 | { | |
642 | return 0; | |
643 | } | |
644 | ||
645 | static int dummy_sem_alloc_security (struct sem_array *sma) | |
646 | { | |
647 | return 0; | |
648 | } | |
649 | ||
650 | static void dummy_sem_free_security (struct sem_array *sma) | |
651 | { | |
652 | return; | |
653 | } | |
654 | ||
655 | static int dummy_sem_associate (struct sem_array *sma, int semflg) | |
656 | { | |
657 | return 0; | |
658 | } | |
659 | ||
660 | static int dummy_sem_semctl (struct sem_array *sma, int cmd) | |
661 | { | |
662 | return 0; | |
663 | } | |
664 | ||
665 | static int dummy_sem_semop (struct sem_array *sma, | |
666 | struct sembuf *sops, unsigned nsops, int alter) | |
667 | { | |
668 | return 0; | |
669 | } | |
670 | ||
671 | static int dummy_netlink_send (struct sock *sk, struct sk_buff *skb) | |
672 | { | |
673 | NETLINK_CB(skb).eff_cap = current->cap_effective; | |
674 | return 0; | |
675 | } | |
676 | ||
677 | static int dummy_netlink_recv (struct sk_buff *skb) | |
678 | { | |
679 | if (!cap_raised (NETLINK_CB (skb).eff_cap, CAP_NET_ADMIN)) | |
680 | return -EPERM; | |
681 | return 0; | |
682 | } | |
683 | ||
684 | #ifdef CONFIG_SECURITY_NETWORK | |
685 | static int dummy_unix_stream_connect (struct socket *sock, | |
686 | struct socket *other, | |
687 | struct sock *newsk) | |
688 | { | |
689 | return 0; | |
690 | } | |
691 | ||
692 | static int dummy_unix_may_send (struct socket *sock, | |
693 | struct socket *other) | |
694 | { | |
695 | return 0; | |
696 | } | |
697 | ||
698 | static int dummy_socket_create (int family, int type, | |
699 | int protocol, int kern) | |
700 | { | |
701 | return 0; | |
702 | } | |
703 | ||
704 | static void dummy_socket_post_create (struct socket *sock, int family, int type, | |
705 | int protocol, int kern) | |
706 | { | |
707 | return; | |
708 | } | |
709 | ||
710 | static int dummy_socket_bind (struct socket *sock, struct sockaddr *address, | |
711 | int addrlen) | |
712 | { | |
713 | return 0; | |
714 | } | |
715 | ||
716 | static int dummy_socket_connect (struct socket *sock, struct sockaddr *address, | |
717 | int addrlen) | |
718 | { | |
719 | return 0; | |
720 | } | |
721 | ||
722 | static int dummy_socket_listen (struct socket *sock, int backlog) | |
723 | { | |
724 | return 0; | |
725 | } | |
726 | ||
727 | static int dummy_socket_accept (struct socket *sock, struct socket *newsock) | |
728 | { | |
729 | return 0; | |
730 | } | |
731 | ||
732 | static void dummy_socket_post_accept (struct socket *sock, | |
733 | struct socket *newsock) | |
734 | { | |
735 | return; | |
736 | } | |
737 | ||
738 | static int dummy_socket_sendmsg (struct socket *sock, struct msghdr *msg, | |
739 | int size) | |
740 | { | |
741 | return 0; | |
742 | } | |
743 | ||
744 | static int dummy_socket_recvmsg (struct socket *sock, struct msghdr *msg, | |
745 | int size, int flags) | |
746 | { | |
747 | return 0; | |
748 | } | |
749 | ||
750 | static int dummy_socket_getsockname (struct socket *sock) | |
751 | { | |
752 | return 0; | |
753 | } | |
754 | ||
755 | static int dummy_socket_getpeername (struct socket *sock) | |
756 | { | |
757 | return 0; | |
758 | } | |
759 | ||
760 | static int dummy_socket_setsockopt (struct socket *sock, int level, int optname) | |
761 | { | |
762 | return 0; | |
763 | } | |
764 | ||
765 | static int dummy_socket_getsockopt (struct socket *sock, int level, int optname) | |
766 | { | |
767 | return 0; | |
768 | } | |
769 | ||
770 | static int dummy_socket_shutdown (struct socket *sock, int how) | |
771 | { | |
772 | return 0; | |
773 | } | |
774 | ||
775 | static int dummy_socket_sock_rcv_skb (struct sock *sk, struct sk_buff *skb) | |
776 | { | |
777 | return 0; | |
778 | } | |
779 | ||
780 | static int dummy_socket_getpeersec(struct socket *sock, char __user *optval, | |
781 | int __user *optlen, unsigned len) | |
782 | { | |
783 | return -ENOPROTOOPT; | |
784 | } | |
785 | ||
786 | static inline int dummy_sk_alloc_security (struct sock *sk, int family, int priority) | |
787 | { | |
788 | return 0; | |
789 | } | |
790 | ||
791 | static inline void dummy_sk_free_security (struct sock *sk) | |
792 | { | |
793 | } | |
794 | #endif /* CONFIG_SECURITY_NETWORK */ | |
795 | ||
796 | static int dummy_register_security (const char *name, struct security_operations *ops) | |
797 | { | |
798 | return -EINVAL; | |
799 | } | |
800 | ||
801 | static int dummy_unregister_security (const char *name, struct security_operations *ops) | |
802 | { | |
803 | return -EINVAL; | |
804 | } | |
805 | ||
806 | static void dummy_d_instantiate (struct dentry *dentry, struct inode *inode) | |
807 | { | |
808 | return; | |
809 | } | |
810 | ||
811 | static int dummy_getprocattr(struct task_struct *p, char *name, void *value, size_t size) | |
812 | { | |
813 | return -EINVAL; | |
814 | } | |
815 | ||
816 | static int dummy_setprocattr(struct task_struct *p, char *name, void *value, size_t size) | |
817 | { | |
818 | return -EINVAL; | |
819 | } | |
820 | ||
821 | ||
822 | struct security_operations dummy_security_ops; | |
823 | ||
824 | #define set_to_dummy_if_null(ops, function) \ | |
825 | do { \ | |
826 | if (!ops->function) { \ | |
827 | ops->function = dummy_##function; \ | |
828 | pr_debug("Had to override the " #function \ | |
829 | " security operation with the dummy one.\n");\ | |
830 | } \ | |
831 | } while (0) | |
832 | ||
833 | void security_fixup_ops (struct security_operations *ops) | |
834 | { | |
835 | set_to_dummy_if_null(ops, ptrace); | |
836 | set_to_dummy_if_null(ops, capget); | |
837 | set_to_dummy_if_null(ops, capset_check); | |
838 | set_to_dummy_if_null(ops, capset_set); | |
839 | set_to_dummy_if_null(ops, acct); | |
840 | set_to_dummy_if_null(ops, capable); | |
841 | set_to_dummy_if_null(ops, quotactl); | |
842 | set_to_dummy_if_null(ops, quota_on); | |
843 | set_to_dummy_if_null(ops, sysctl); | |
844 | set_to_dummy_if_null(ops, syslog); | |
845 | set_to_dummy_if_null(ops, settime); | |
846 | set_to_dummy_if_null(ops, vm_enough_memory); | |
847 | set_to_dummy_if_null(ops, bprm_alloc_security); | |
848 | set_to_dummy_if_null(ops, bprm_free_security); | |
849 | set_to_dummy_if_null(ops, bprm_apply_creds); | |
850 | set_to_dummy_if_null(ops, bprm_post_apply_creds); | |
851 | set_to_dummy_if_null(ops, bprm_set_security); | |
852 | set_to_dummy_if_null(ops, bprm_check_security); | |
853 | set_to_dummy_if_null(ops, bprm_secureexec); | |
854 | set_to_dummy_if_null(ops, sb_alloc_security); | |
855 | set_to_dummy_if_null(ops, sb_free_security); | |
856 | set_to_dummy_if_null(ops, sb_copy_data); | |
857 | set_to_dummy_if_null(ops, sb_kern_mount); | |
858 | set_to_dummy_if_null(ops, sb_statfs); | |
859 | set_to_dummy_if_null(ops, sb_mount); | |
860 | set_to_dummy_if_null(ops, sb_check_sb); | |
861 | set_to_dummy_if_null(ops, sb_umount); | |
862 | set_to_dummy_if_null(ops, sb_umount_close); | |
863 | set_to_dummy_if_null(ops, sb_umount_busy); | |
864 | set_to_dummy_if_null(ops, sb_post_remount); | |
865 | set_to_dummy_if_null(ops, sb_post_mountroot); | |
866 | set_to_dummy_if_null(ops, sb_post_addmount); | |
867 | set_to_dummy_if_null(ops, sb_pivotroot); | |
868 | set_to_dummy_if_null(ops, sb_post_pivotroot); | |
869 | set_to_dummy_if_null(ops, inode_alloc_security); | |
870 | set_to_dummy_if_null(ops, inode_free_security); | |
5e41ff9e | 871 | set_to_dummy_if_null(ops, inode_init_security); |
1da177e4 | 872 | set_to_dummy_if_null(ops, inode_create); |
1da177e4 LT |
873 | set_to_dummy_if_null(ops, inode_link); |
874 | set_to_dummy_if_null(ops, inode_post_link); | |
875 | set_to_dummy_if_null(ops, inode_unlink); | |
876 | set_to_dummy_if_null(ops, inode_symlink); | |
1da177e4 | 877 | set_to_dummy_if_null(ops, inode_mkdir); |
1da177e4 LT |
878 | set_to_dummy_if_null(ops, inode_rmdir); |
879 | set_to_dummy_if_null(ops, inode_mknod); | |
1da177e4 LT |
880 | set_to_dummy_if_null(ops, inode_rename); |
881 | set_to_dummy_if_null(ops, inode_post_rename); | |
882 | set_to_dummy_if_null(ops, inode_readlink); | |
883 | set_to_dummy_if_null(ops, inode_follow_link); | |
884 | set_to_dummy_if_null(ops, inode_permission); | |
885 | set_to_dummy_if_null(ops, inode_setattr); | |
886 | set_to_dummy_if_null(ops, inode_getattr); | |
887 | set_to_dummy_if_null(ops, inode_delete); | |
888 | set_to_dummy_if_null(ops, inode_setxattr); | |
889 | set_to_dummy_if_null(ops, inode_post_setxattr); | |
890 | set_to_dummy_if_null(ops, inode_getxattr); | |
891 | set_to_dummy_if_null(ops, inode_listxattr); | |
892 | set_to_dummy_if_null(ops, inode_removexattr); | |
893 | set_to_dummy_if_null(ops, inode_getsecurity); | |
894 | set_to_dummy_if_null(ops, inode_setsecurity); | |
895 | set_to_dummy_if_null(ops, inode_listsecurity); | |
896 | set_to_dummy_if_null(ops, file_permission); | |
897 | set_to_dummy_if_null(ops, file_alloc_security); | |
898 | set_to_dummy_if_null(ops, file_free_security); | |
899 | set_to_dummy_if_null(ops, file_ioctl); | |
900 | set_to_dummy_if_null(ops, file_mmap); | |
901 | set_to_dummy_if_null(ops, file_mprotect); | |
902 | set_to_dummy_if_null(ops, file_lock); | |
903 | set_to_dummy_if_null(ops, file_fcntl); | |
904 | set_to_dummy_if_null(ops, file_set_fowner); | |
905 | set_to_dummy_if_null(ops, file_send_sigiotask); | |
906 | set_to_dummy_if_null(ops, file_receive); | |
907 | set_to_dummy_if_null(ops, task_create); | |
908 | set_to_dummy_if_null(ops, task_alloc_security); | |
909 | set_to_dummy_if_null(ops, task_free_security); | |
910 | set_to_dummy_if_null(ops, task_setuid); | |
911 | set_to_dummy_if_null(ops, task_post_setuid); | |
912 | set_to_dummy_if_null(ops, task_setgid); | |
913 | set_to_dummy_if_null(ops, task_setpgid); | |
914 | set_to_dummy_if_null(ops, task_getpgid); | |
915 | set_to_dummy_if_null(ops, task_getsid); | |
916 | set_to_dummy_if_null(ops, task_setgroups); | |
917 | set_to_dummy_if_null(ops, task_setnice); | |
918 | set_to_dummy_if_null(ops, task_setrlimit); | |
919 | set_to_dummy_if_null(ops, task_setscheduler); | |
920 | set_to_dummy_if_null(ops, task_getscheduler); | |
921 | set_to_dummy_if_null(ops, task_wait); | |
922 | set_to_dummy_if_null(ops, task_kill); | |
923 | set_to_dummy_if_null(ops, task_prctl); | |
924 | set_to_dummy_if_null(ops, task_reparent_to_init); | |
925 | set_to_dummy_if_null(ops, task_to_inode); | |
926 | set_to_dummy_if_null(ops, ipc_permission); | |
927 | set_to_dummy_if_null(ops, msg_msg_alloc_security); | |
928 | set_to_dummy_if_null(ops, msg_msg_free_security); | |
929 | set_to_dummy_if_null(ops, msg_queue_alloc_security); | |
930 | set_to_dummy_if_null(ops, msg_queue_free_security); | |
931 | set_to_dummy_if_null(ops, msg_queue_associate); | |
932 | set_to_dummy_if_null(ops, msg_queue_msgctl); | |
933 | set_to_dummy_if_null(ops, msg_queue_msgsnd); | |
934 | set_to_dummy_if_null(ops, msg_queue_msgrcv); | |
935 | set_to_dummy_if_null(ops, shm_alloc_security); | |
936 | set_to_dummy_if_null(ops, shm_free_security); | |
937 | set_to_dummy_if_null(ops, shm_associate); | |
938 | set_to_dummy_if_null(ops, shm_shmctl); | |
939 | set_to_dummy_if_null(ops, shm_shmat); | |
940 | set_to_dummy_if_null(ops, sem_alloc_security); | |
941 | set_to_dummy_if_null(ops, sem_free_security); | |
942 | set_to_dummy_if_null(ops, sem_associate); | |
943 | set_to_dummy_if_null(ops, sem_semctl); | |
944 | set_to_dummy_if_null(ops, sem_semop); | |
945 | set_to_dummy_if_null(ops, netlink_send); | |
946 | set_to_dummy_if_null(ops, netlink_recv); | |
947 | set_to_dummy_if_null(ops, register_security); | |
948 | set_to_dummy_if_null(ops, unregister_security); | |
949 | set_to_dummy_if_null(ops, d_instantiate); | |
950 | set_to_dummy_if_null(ops, getprocattr); | |
951 | set_to_dummy_if_null(ops, setprocattr); | |
952 | #ifdef CONFIG_SECURITY_NETWORK | |
953 | set_to_dummy_if_null(ops, unix_stream_connect); | |
954 | set_to_dummy_if_null(ops, unix_may_send); | |
955 | set_to_dummy_if_null(ops, socket_create); | |
956 | set_to_dummy_if_null(ops, socket_post_create); | |
957 | set_to_dummy_if_null(ops, socket_bind); | |
958 | set_to_dummy_if_null(ops, socket_connect); | |
959 | set_to_dummy_if_null(ops, socket_listen); | |
960 | set_to_dummy_if_null(ops, socket_accept); | |
961 | set_to_dummy_if_null(ops, socket_post_accept); | |
962 | set_to_dummy_if_null(ops, socket_sendmsg); | |
963 | set_to_dummy_if_null(ops, socket_recvmsg); | |
964 | set_to_dummy_if_null(ops, socket_getsockname); | |
965 | set_to_dummy_if_null(ops, socket_getpeername); | |
966 | set_to_dummy_if_null(ops, socket_setsockopt); | |
967 | set_to_dummy_if_null(ops, socket_getsockopt); | |
968 | set_to_dummy_if_null(ops, socket_shutdown); | |
969 | set_to_dummy_if_null(ops, socket_sock_rcv_skb); | |
970 | set_to_dummy_if_null(ops, socket_getpeersec); | |
971 | set_to_dummy_if_null(ops, sk_alloc_security); | |
972 | set_to_dummy_if_null(ops, sk_free_security); | |
973 | #endif /* CONFIG_SECURITY_NETWORK */ | |
974 | } | |
975 |