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_acct(struct file * file)15 static int cap_acct(struct file *file)
16 {
17 return 0;
18 }
19
cap_sysctl(ctl_table * table,int op)20 static int cap_sysctl(ctl_table *table, int op)
21 {
22 return 0;
23 }
24
cap_quotactl(int cmds,int type,int id,struct super_block * sb)25 static int cap_quotactl(int cmds, int type, int id, struct super_block *sb)
26 {
27 return 0;
28 }
29
cap_quota_on(struct dentry * dentry)30 static int cap_quota_on(struct dentry *dentry)
31 {
32 return 0;
33 }
34
cap_bprm_check_security(struct linux_binprm * bprm)35 static int cap_bprm_check_security (struct linux_binprm *bprm)
36 {
37 return 0;
38 }
39
cap_bprm_committing_creds(struct linux_binprm * bprm)40 static void cap_bprm_committing_creds(struct linux_binprm *bprm)
41 {
42 }
43
cap_bprm_committed_creds(struct linux_binprm * bprm)44 static void cap_bprm_committed_creds(struct linux_binprm *bprm)
45 {
46 }
47
cap_sb_alloc_security(struct super_block * sb)48 static int cap_sb_alloc_security(struct super_block *sb)
49 {
50 return 0;
51 }
52
cap_sb_free_security(struct super_block * sb)53 static void cap_sb_free_security(struct super_block *sb)
54 {
55 }
56
cap_sb_copy_data(char * orig,char * copy)57 static int cap_sb_copy_data(char *orig, char *copy)
58 {
59 return 0;
60 }
61
cap_sb_kern_mount(struct super_block * sb,int flags,void * data)62 static int cap_sb_kern_mount(struct super_block *sb, int flags, void *data)
63 {
64 return 0;
65 }
66
cap_sb_show_options(struct seq_file * m,struct super_block * sb)67 static int cap_sb_show_options(struct seq_file *m, struct super_block *sb)
68 {
69 return 0;
70 }
71
cap_sb_statfs(struct dentry * dentry)72 static int cap_sb_statfs(struct dentry *dentry)
73 {
74 return 0;
75 }
76
cap_sb_mount(char * dev_name,struct path * path,char * type,unsigned long flags,void * data)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
cap_sb_check_sb(struct vfsmount * mnt,struct path * path)83 static int cap_sb_check_sb(struct vfsmount *mnt, struct path *path)
84 {
85 return 0;
86 }
87
cap_sb_umount(struct vfsmount * mnt,int flags)88 static int cap_sb_umount(struct vfsmount *mnt, int flags)
89 {
90 return 0;
91 }
92
cap_sb_umount_close(struct vfsmount * mnt)93 static void cap_sb_umount_close(struct vfsmount *mnt)
94 {
95 }
96
cap_sb_umount_busy(struct vfsmount * mnt)97 static void cap_sb_umount_busy(struct vfsmount *mnt)
98 {
99 }
100
cap_sb_post_remount(struct vfsmount * mnt,unsigned long flags,void * data)101 static void cap_sb_post_remount(struct vfsmount *mnt, unsigned long flags,
102 void *data)
103 {
104 }
105
cap_sb_post_addmount(struct vfsmount * mnt,struct path * path)106 static void cap_sb_post_addmount(struct vfsmount *mnt, struct path *path)
107 {
108 }
109
cap_sb_pivotroot(struct path * old_path,struct path * new_path)110 static int cap_sb_pivotroot(struct path *old_path, struct path *new_path)
111 {
112 return 0;
113 }
114
cap_sb_post_pivotroot(struct path * old_path,struct path * new_path)115 static void cap_sb_post_pivotroot(struct path *old_path, struct path *new_path)
116 {
117 }
118
cap_sb_set_mnt_opts(struct super_block * sb,struct security_mnt_opts * opts)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
cap_sb_clone_mnt_opts(const struct super_block * oldsb,struct super_block * newsb)127 static void cap_sb_clone_mnt_opts(const struct super_block *oldsb,
128 struct super_block *newsb)
129 {
130 }
131
cap_sb_parse_opts_str(char * options,struct security_mnt_opts * opts)132 static int cap_sb_parse_opts_str(char *options, struct security_mnt_opts *opts)
133 {
134 return 0;
135 }
136
cap_inode_alloc_security(struct inode * inode)137 static int cap_inode_alloc_security(struct inode *inode)
138 {
139 return 0;
140 }
141
cap_inode_free_security(struct inode * inode)142 static void cap_inode_free_security(struct inode *inode)
143 {
144 }
145
cap_inode_init_security(struct inode * inode,struct inode * dir,char ** name,void ** value,size_t * len)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
cap_inode_create(struct inode * inode,struct dentry * dentry,int mask)152 static int cap_inode_create(struct inode *inode, struct dentry *dentry,
153 int mask)
154 {
155 return 0;
156 }
157
cap_inode_link(struct dentry * old_dentry,struct inode * inode,struct dentry * new_dentry)158 static int cap_inode_link(struct dentry *old_dentry, struct inode *inode,
159 struct dentry *new_dentry)
160 {
161 return 0;
162 }
163
cap_inode_unlink(struct inode * inode,struct dentry * dentry)164 static int cap_inode_unlink(struct inode *inode, struct dentry *dentry)
165 {
166 return 0;
167 }
168
cap_inode_symlink(struct inode * inode,struct dentry * dentry,const char * name)169 static int cap_inode_symlink(struct inode *inode, struct dentry *dentry,
170 const char *name)
171 {
172 return 0;
173 }
174
cap_inode_mkdir(struct inode * inode,struct dentry * dentry,int mask)175 static int cap_inode_mkdir(struct inode *inode, struct dentry *dentry,
176 int mask)
177 {
178 return 0;
179 }
180
cap_inode_rmdir(struct inode * inode,struct dentry * dentry)181 static int cap_inode_rmdir(struct inode *inode, struct dentry *dentry)
182 {
183 return 0;
184 }
185
cap_inode_mknod(struct inode * inode,struct dentry * dentry,int mode,dev_t dev)186 static int cap_inode_mknod(struct inode *inode, struct dentry *dentry,
187 int mode, dev_t dev)
188 {
189 return 0;
190 }
191
cap_inode_rename(struct inode * old_inode,struct dentry * old_dentry,struct inode * new_inode,struct dentry * new_dentry)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
cap_inode_readlink(struct dentry * dentry)198 static int cap_inode_readlink(struct dentry *dentry)
199 {
200 return 0;
201 }
202
cap_inode_follow_link(struct dentry * dentry,struct nameidata * nameidata)203 static int cap_inode_follow_link(struct dentry *dentry,
204 struct nameidata *nameidata)
205 {
206 return 0;
207 }
208
cap_inode_permission(struct inode * inode,int mask)209 static int cap_inode_permission(struct inode *inode, int mask)
210 {
211 return 0;
212 }
213
cap_inode_setattr(struct dentry * dentry,struct iattr * iattr)214 static int cap_inode_setattr(struct dentry *dentry, struct iattr *iattr)
215 {
216 return 0;
217 }
218
cap_inode_getattr(struct vfsmount * mnt,struct dentry * dentry)219 static int cap_inode_getattr(struct vfsmount *mnt, struct dentry *dentry)
220 {
221 return 0;
222 }
223
cap_inode_delete(struct inode * ino)224 static void cap_inode_delete(struct inode *ino)
225 {
226 }
227
cap_inode_post_setxattr(struct dentry * dentry,const char * name,const void * value,size_t size,int flags)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
cap_inode_getxattr(struct dentry * dentry,const char * name)233 static int cap_inode_getxattr(struct dentry *dentry, const char *name)
234 {
235 return 0;
236 }
237
cap_inode_listxattr(struct dentry * dentry)238 static int cap_inode_listxattr(struct dentry *dentry)
239 {
240 return 0;
241 }
242
cap_inode_getsecurity(const struct inode * inode,const char * name,void ** buffer,bool alloc)243 static int cap_inode_getsecurity(const struct inode *inode, const char *name,
244 void **buffer, bool alloc)
245 {
246 return -EOPNOTSUPP;
247 }
248
cap_inode_setsecurity(struct inode * inode,const char * name,const void * value,size_t size,int flags)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
cap_inode_listsecurity(struct inode * inode,char * buffer,size_t buffer_size)255 static int cap_inode_listsecurity(struct inode *inode, char *buffer,
256 size_t buffer_size)
257 {
258 return 0;
259 }
260
cap_inode_getsecid(const struct inode * inode,u32 * secid)261 static void cap_inode_getsecid(const struct inode *inode, u32 *secid)
262 {
263 *secid = 0;
264 }
265
266 #ifdef CONFIG_SECURITY_PATH
cap_path_mknod(struct path * dir,struct dentry * dentry,int mode,unsigned int dev)267 static int cap_path_mknod(struct path *dir, struct dentry *dentry, int mode,
268 unsigned int dev)
269 {
270 return 0;
271 }
272
cap_path_mkdir(struct path * dir,struct dentry * dentry,int mode)273 static int cap_path_mkdir(struct path *dir, struct dentry *dentry, int mode)
274 {
275 return 0;
276 }
277
cap_path_rmdir(struct path * dir,struct dentry * dentry)278 static int cap_path_rmdir(struct path *dir, struct dentry *dentry)
279 {
280 return 0;
281 }
282
cap_path_unlink(struct path * dir,struct dentry * dentry)283 static int cap_path_unlink(struct path *dir, struct dentry *dentry)
284 {
285 return 0;
286 }
287
cap_path_symlink(struct path * dir,struct dentry * dentry,const char * old_name)288 static int cap_path_symlink(struct path *dir, struct dentry *dentry,
289 const char *old_name)
290 {
291 return 0;
292 }
293
cap_path_link(struct dentry * old_dentry,struct path * new_dir,struct dentry * new_dentry)294 static int cap_path_link(struct dentry *old_dentry, struct path *new_dir,
295 struct dentry *new_dentry)
296 {
297 return 0;
298 }
299
cap_path_rename(struct path * old_path,struct dentry * old_dentry,struct path * new_path,struct dentry * new_dentry)300 static int cap_path_rename(struct path *old_path, struct dentry *old_dentry,
301 struct path *new_path, struct dentry *new_dentry)
302 {
303 return 0;
304 }
305
cap_path_truncate(struct path * path,loff_t length,unsigned int time_attrs)306 static int cap_path_truncate(struct path *path, loff_t length,
307 unsigned int time_attrs)
308 {
309 return 0;
310 }
311 #endif
312
cap_file_permission(struct file * file,int mask)313 static int cap_file_permission(struct file *file, int mask)
314 {
315 return 0;
316 }
317
cap_file_alloc_security(struct file * file)318 static int cap_file_alloc_security(struct file *file)
319 {
320 return 0;
321 }
322
cap_file_free_security(struct file * file)323 static void cap_file_free_security(struct file *file)
324 {
325 }
326
cap_file_ioctl(struct file * file,unsigned int command,unsigned long arg)327 static int cap_file_ioctl(struct file *file, unsigned int command,
328 unsigned long arg)
329 {
330 return 0;
331 }
332
cap_file_mmap(struct file * file,unsigned long reqprot,unsigned long prot,unsigned long flags,unsigned long addr,unsigned long addr_only)333 static int cap_file_mmap(struct file *file, unsigned long reqprot,
334 unsigned long prot, unsigned long flags,
335 unsigned long addr, unsigned long addr_only)
336 {
337 if ((addr < mmap_min_addr) && !capable(CAP_SYS_RAWIO))
338 return -EACCES;
339 return 0;
340 }
341
cap_file_mprotect(struct vm_area_struct * vma,unsigned long reqprot,unsigned long prot)342 static int cap_file_mprotect(struct vm_area_struct *vma, unsigned long reqprot,
343 unsigned long prot)
344 {
345 return 0;
346 }
347
cap_file_lock(struct file * file,unsigned int cmd)348 static int cap_file_lock(struct file *file, unsigned int cmd)
349 {
350 return 0;
351 }
352
cap_file_fcntl(struct file * file,unsigned int cmd,unsigned long arg)353 static int cap_file_fcntl(struct file *file, unsigned int cmd,
354 unsigned long arg)
355 {
356 return 0;
357 }
358
cap_file_set_fowner(struct file * file)359 static int cap_file_set_fowner(struct file *file)
360 {
361 return 0;
362 }
363
cap_file_send_sigiotask(struct task_struct * tsk,struct fown_struct * fown,int sig)364 static int cap_file_send_sigiotask(struct task_struct *tsk,
365 struct fown_struct *fown, int sig)
366 {
367 return 0;
368 }
369
cap_file_receive(struct file * file)370 static int cap_file_receive(struct file *file)
371 {
372 return 0;
373 }
374
cap_dentry_open(struct file * file,const struct cred * cred)375 static int cap_dentry_open(struct file *file, const struct cred *cred)
376 {
377 return 0;
378 }
379
cap_task_create(unsigned long clone_flags)380 static int cap_task_create(unsigned long clone_flags)
381 {
382 return 0;
383 }
384
cap_cred_free(struct cred * cred)385 static void cap_cred_free(struct cred *cred)
386 {
387 }
388
cap_cred_prepare(struct cred * new,const struct cred * old,gfp_t gfp)389 static int cap_cred_prepare(struct cred *new, const struct cred *old, gfp_t gfp)
390 {
391 return 0;
392 }
393
cap_cred_commit(struct cred * new,const struct cred * old)394 static void cap_cred_commit(struct cred *new, const struct cred *old)
395 {
396 }
397
cap_kernel_act_as(struct cred * new,u32 secid)398 static int cap_kernel_act_as(struct cred *new, u32 secid)
399 {
400 return 0;
401 }
402
cap_kernel_create_files_as(struct cred * new,struct inode * inode)403 static int cap_kernel_create_files_as(struct cred *new, struct inode *inode)
404 {
405 return 0;
406 }
407
cap_task_setuid(uid_t id0,uid_t id1,uid_t id2,int flags)408 static int cap_task_setuid(uid_t id0, uid_t id1, uid_t id2, int flags)
409 {
410 return 0;
411 }
412
cap_task_setgid(gid_t id0,gid_t id1,gid_t id2,int flags)413 static int cap_task_setgid(gid_t id0, gid_t id1, gid_t id2, int flags)
414 {
415 return 0;
416 }
417
cap_task_setpgid(struct task_struct * p,pid_t pgid)418 static int cap_task_setpgid(struct task_struct *p, pid_t pgid)
419 {
420 return 0;
421 }
422
cap_task_getpgid(struct task_struct * p)423 static int cap_task_getpgid(struct task_struct *p)
424 {
425 return 0;
426 }
427
cap_task_getsid(struct task_struct * p)428 static int cap_task_getsid(struct task_struct *p)
429 {
430 return 0;
431 }
432
cap_task_getsecid(struct task_struct * p,u32 * secid)433 static void cap_task_getsecid(struct task_struct *p, u32 *secid)
434 {
435 *secid = 0;
436 }
437
cap_task_setgroups(struct group_info * group_info)438 static int cap_task_setgroups(struct group_info *group_info)
439 {
440 return 0;
441 }
442
cap_task_getioprio(struct task_struct * p)443 static int cap_task_getioprio(struct task_struct *p)
444 {
445 return 0;
446 }
447
cap_task_setrlimit(unsigned int resource,struct rlimit * new_rlim)448 static int cap_task_setrlimit(unsigned int resource, struct rlimit *new_rlim)
449 {
450 return 0;
451 }
452
cap_task_getscheduler(struct task_struct * p)453 static int cap_task_getscheduler(struct task_struct *p)
454 {
455 return 0;
456 }
457
cap_task_movememory(struct task_struct * p)458 static int cap_task_movememory(struct task_struct *p)
459 {
460 return 0;
461 }
462
cap_task_wait(struct task_struct * p)463 static int cap_task_wait(struct task_struct *p)
464 {
465 return 0;
466 }
467
cap_task_kill(struct task_struct * p,struct siginfo * info,int sig,u32 secid)468 static int cap_task_kill(struct task_struct *p, struct siginfo *info,
469 int sig, u32 secid)
470 {
471 return 0;
472 }
473
cap_task_to_inode(struct task_struct * p,struct inode * inode)474 static void cap_task_to_inode(struct task_struct *p, struct inode *inode)
475 {
476 }
477
cap_ipc_permission(struct kern_ipc_perm * ipcp,short flag)478 static int cap_ipc_permission(struct kern_ipc_perm *ipcp, short flag)
479 {
480 return 0;
481 }
482
cap_ipc_getsecid(struct kern_ipc_perm * ipcp,u32 * secid)483 static void cap_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid)
484 {
485 *secid = 0;
486 }
487
cap_msg_msg_alloc_security(struct msg_msg * msg)488 static int cap_msg_msg_alloc_security(struct msg_msg *msg)
489 {
490 return 0;
491 }
492
cap_msg_msg_free_security(struct msg_msg * msg)493 static void cap_msg_msg_free_security(struct msg_msg *msg)
494 {
495 }
496
cap_msg_queue_alloc_security(struct msg_queue * msq)497 static int cap_msg_queue_alloc_security(struct msg_queue *msq)
498 {
499 return 0;
500 }
501
cap_msg_queue_free_security(struct msg_queue * msq)502 static void cap_msg_queue_free_security(struct msg_queue *msq)
503 {
504 }
505
cap_msg_queue_associate(struct msg_queue * msq,int msqflg)506 static int cap_msg_queue_associate(struct msg_queue *msq, int msqflg)
507 {
508 return 0;
509 }
510
cap_msg_queue_msgctl(struct msg_queue * msq,int cmd)511 static int cap_msg_queue_msgctl(struct msg_queue *msq, int cmd)
512 {
513 return 0;
514 }
515
cap_msg_queue_msgsnd(struct msg_queue * msq,struct msg_msg * msg,int msgflg)516 static int cap_msg_queue_msgsnd(struct msg_queue *msq, struct msg_msg *msg,
517 int msgflg)
518 {
519 return 0;
520 }
521
cap_msg_queue_msgrcv(struct msg_queue * msq,struct msg_msg * msg,struct task_struct * target,long type,int mode)522 static int cap_msg_queue_msgrcv(struct msg_queue *msq, struct msg_msg *msg,
523 struct task_struct *target, long type, int mode)
524 {
525 return 0;
526 }
527
cap_shm_alloc_security(struct shmid_kernel * shp)528 static int cap_shm_alloc_security(struct shmid_kernel *shp)
529 {
530 return 0;
531 }
532
cap_shm_free_security(struct shmid_kernel * shp)533 static void cap_shm_free_security(struct shmid_kernel *shp)
534 {
535 }
536
cap_shm_associate(struct shmid_kernel * shp,int shmflg)537 static int cap_shm_associate(struct shmid_kernel *shp, int shmflg)
538 {
539 return 0;
540 }
541
cap_shm_shmctl(struct shmid_kernel * shp,int cmd)542 static int cap_shm_shmctl(struct shmid_kernel *shp, int cmd)
543 {
544 return 0;
545 }
546
cap_shm_shmat(struct shmid_kernel * shp,char __user * shmaddr,int shmflg)547 static int cap_shm_shmat(struct shmid_kernel *shp, char __user *shmaddr,
548 int shmflg)
549 {
550 return 0;
551 }
552
cap_sem_alloc_security(struct sem_array * sma)553 static int cap_sem_alloc_security(struct sem_array *sma)
554 {
555 return 0;
556 }
557
cap_sem_free_security(struct sem_array * sma)558 static void cap_sem_free_security(struct sem_array *sma)
559 {
560 }
561
cap_sem_associate(struct sem_array * sma,int semflg)562 static int cap_sem_associate(struct sem_array *sma, int semflg)
563 {
564 return 0;
565 }
566
cap_sem_semctl(struct sem_array * sma,int cmd)567 static int cap_sem_semctl(struct sem_array *sma, int cmd)
568 {
569 return 0;
570 }
571
cap_sem_semop(struct sem_array * sma,struct sembuf * sops,unsigned nsops,int alter)572 static int cap_sem_semop(struct sem_array *sma, struct sembuf *sops,
573 unsigned nsops, int alter)
574 {
575 return 0;
576 }
577
578 #ifdef CONFIG_SECURITY_NETWORK
cap_unix_stream_connect(struct socket * sock,struct socket * other,struct sock * newsk)579 static int cap_unix_stream_connect(struct socket *sock, struct socket *other,
580 struct sock *newsk)
581 {
582 return 0;
583 }
584
cap_unix_may_send(struct socket * sock,struct socket * other)585 static int cap_unix_may_send(struct socket *sock, struct socket *other)
586 {
587 return 0;
588 }
589
cap_socket_create(int family,int type,int protocol,int kern)590 static int cap_socket_create(int family, int type, int protocol, int kern)
591 {
592 return 0;
593 }
594
cap_socket_post_create(struct socket * sock,int family,int type,int protocol,int kern)595 static int cap_socket_post_create(struct socket *sock, int family, int type,
596 int protocol, int kern)
597 {
598 return 0;
599 }
600
cap_socket_bind(struct socket * sock,struct sockaddr * address,int addrlen)601 static int cap_socket_bind(struct socket *sock, struct sockaddr *address,
602 int addrlen)
603 {
604 return 0;
605 }
606
cap_socket_connect(struct socket * sock,struct sockaddr * address,int addrlen)607 static int cap_socket_connect(struct socket *sock, struct sockaddr *address,
608 int addrlen)
609 {
610 return 0;
611 }
612
cap_socket_listen(struct socket * sock,int backlog)613 static int cap_socket_listen(struct socket *sock, int backlog)
614 {
615 return 0;
616 }
617
cap_socket_accept(struct socket * sock,struct socket * newsock)618 static int cap_socket_accept(struct socket *sock, struct socket *newsock)
619 {
620 return 0;
621 }
622
cap_socket_post_accept(struct socket * sock,struct socket * newsock)623 static void cap_socket_post_accept(struct socket *sock, struct socket *newsock)
624 {
625 }
626
cap_socket_sendmsg(struct socket * sock,struct msghdr * msg,int size)627 static int cap_socket_sendmsg(struct socket *sock, struct msghdr *msg, int size)
628 {
629 return 0;
630 }
631
cap_socket_recvmsg(struct socket * sock,struct msghdr * msg,int size,int flags)632 static int cap_socket_recvmsg(struct socket *sock, struct msghdr *msg,
633 int size, int flags)
634 {
635 return 0;
636 }
637
cap_socket_getsockname(struct socket * sock)638 static int cap_socket_getsockname(struct socket *sock)
639 {
640 return 0;
641 }
642
cap_socket_getpeername(struct socket * sock)643 static int cap_socket_getpeername(struct socket *sock)
644 {
645 return 0;
646 }
647
cap_socket_setsockopt(struct socket * sock,int level,int optname)648 static int cap_socket_setsockopt(struct socket *sock, int level, int optname)
649 {
650 return 0;
651 }
652
cap_socket_getsockopt(struct socket * sock,int level,int optname)653 static int cap_socket_getsockopt(struct socket *sock, int level, int optname)
654 {
655 return 0;
656 }
657
cap_socket_shutdown(struct socket * sock,int how)658 static int cap_socket_shutdown(struct socket *sock, int how)
659 {
660 return 0;
661 }
662
cap_socket_sock_rcv_skb(struct sock * sk,struct sk_buff * skb)663 static int cap_socket_sock_rcv_skb(struct sock *sk, struct sk_buff *skb)
664 {
665 return 0;
666 }
667
cap_socket_getpeersec_stream(struct socket * sock,char __user * optval,int __user * optlen,unsigned len)668 static int cap_socket_getpeersec_stream(struct socket *sock,
669 char __user *optval,
670 int __user *optlen, unsigned len)
671 {
672 return -ENOPROTOOPT;
673 }
674
cap_socket_getpeersec_dgram(struct socket * sock,struct sk_buff * skb,u32 * secid)675 static int cap_socket_getpeersec_dgram(struct socket *sock,
676 struct sk_buff *skb, u32 *secid)
677 {
678 return -ENOPROTOOPT;
679 }
680
cap_sk_alloc_security(struct sock * sk,int family,gfp_t priority)681 static int cap_sk_alloc_security(struct sock *sk, int family, gfp_t priority)
682 {
683 return 0;
684 }
685
cap_sk_free_security(struct sock * sk)686 static void cap_sk_free_security(struct sock *sk)
687 {
688 }
689
cap_sk_clone_security(const struct sock * sk,struct sock * newsk)690 static void cap_sk_clone_security(const struct sock *sk, struct sock *newsk)
691 {
692 }
693
cap_sk_getsecid(struct sock * sk,u32 * secid)694 static void cap_sk_getsecid(struct sock *sk, u32 *secid)
695 {
696 }
697
cap_sock_graft(struct sock * sk,struct socket * parent)698 static void cap_sock_graft(struct sock *sk, struct socket *parent)
699 {
700 }
701
cap_inet_conn_request(struct sock * sk,struct sk_buff * skb,struct request_sock * req)702 static int cap_inet_conn_request(struct sock *sk, struct sk_buff *skb,
703 struct request_sock *req)
704 {
705 return 0;
706 }
707
cap_inet_csk_clone(struct sock * newsk,const struct request_sock * req)708 static void cap_inet_csk_clone(struct sock *newsk,
709 const struct request_sock *req)
710 {
711 }
712
cap_inet_conn_established(struct sock * sk,struct sk_buff * skb)713 static void cap_inet_conn_established(struct sock *sk, struct sk_buff *skb)
714 {
715 }
716
cap_req_classify_flow(const struct request_sock * req,struct flowi * fl)717 static void cap_req_classify_flow(const struct request_sock *req,
718 struct flowi *fl)
719 {
720 }
721 #endif /* CONFIG_SECURITY_NETWORK */
722
723 #ifdef CONFIG_SECURITY_NETWORK_XFRM
cap_xfrm_policy_alloc_security(struct xfrm_sec_ctx ** ctxp,struct xfrm_user_sec_ctx * sec_ctx)724 static int cap_xfrm_policy_alloc_security(struct xfrm_sec_ctx **ctxp,
725 struct xfrm_user_sec_ctx *sec_ctx)
726 {
727 return 0;
728 }
729
cap_xfrm_policy_clone_security(struct xfrm_sec_ctx * old_ctx,struct xfrm_sec_ctx ** new_ctxp)730 static int cap_xfrm_policy_clone_security(struct xfrm_sec_ctx *old_ctx,
731 struct xfrm_sec_ctx **new_ctxp)
732 {
733 return 0;
734 }
735
cap_xfrm_policy_free_security(struct xfrm_sec_ctx * ctx)736 static void cap_xfrm_policy_free_security(struct xfrm_sec_ctx *ctx)
737 {
738 }
739
cap_xfrm_policy_delete_security(struct xfrm_sec_ctx * ctx)740 static int cap_xfrm_policy_delete_security(struct xfrm_sec_ctx *ctx)
741 {
742 return 0;
743 }
744
cap_xfrm_state_alloc_security(struct xfrm_state * x,struct xfrm_user_sec_ctx * sec_ctx,u32 secid)745 static int cap_xfrm_state_alloc_security(struct xfrm_state *x,
746 struct xfrm_user_sec_ctx *sec_ctx,
747 u32 secid)
748 {
749 return 0;
750 }
751
cap_xfrm_state_free_security(struct xfrm_state * x)752 static void cap_xfrm_state_free_security(struct xfrm_state *x)
753 {
754 }
755
cap_xfrm_state_delete_security(struct xfrm_state * x)756 static int cap_xfrm_state_delete_security(struct xfrm_state *x)
757 {
758 return 0;
759 }
760
cap_xfrm_policy_lookup(struct xfrm_sec_ctx * ctx,u32 sk_sid,u8 dir)761 static int cap_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 sk_sid, u8 dir)
762 {
763 return 0;
764 }
765
cap_xfrm_state_pol_flow_match(struct xfrm_state * x,struct xfrm_policy * xp,struct flowi * fl)766 static int cap_xfrm_state_pol_flow_match(struct xfrm_state *x,
767 struct xfrm_policy *xp,
768 struct flowi *fl)
769 {
770 return 1;
771 }
772
cap_xfrm_decode_session(struct sk_buff * skb,u32 * fl,int ckall)773 static int cap_xfrm_decode_session(struct sk_buff *skb, u32 *fl, int ckall)
774 {
775 return 0;
776 }
777
778 #endif /* CONFIG_SECURITY_NETWORK_XFRM */
cap_d_instantiate(struct dentry * dentry,struct inode * inode)779 static void cap_d_instantiate(struct dentry *dentry, struct inode *inode)
780 {
781 }
782
cap_getprocattr(struct task_struct * p,char * name,char ** value)783 static int cap_getprocattr(struct task_struct *p, char *name, char **value)
784 {
785 return -EINVAL;
786 }
787
cap_setprocattr(struct task_struct * p,char * name,void * value,size_t size)788 static int cap_setprocattr(struct task_struct *p, char *name, void *value,
789 size_t size)
790 {
791 return -EINVAL;
792 }
793
cap_secid_to_secctx(u32 secid,char ** secdata,u32 * seclen)794 static int cap_secid_to_secctx(u32 secid, char **secdata, u32 *seclen)
795 {
796 return -EOPNOTSUPP;
797 }
798
cap_secctx_to_secid(const char * secdata,u32 seclen,u32 * secid)799 static int cap_secctx_to_secid(const char *secdata, u32 seclen, u32 *secid)
800 {
801 return -EOPNOTSUPP;
802 }
803
cap_release_secctx(char * secdata,u32 seclen)804 static void cap_release_secctx(char *secdata, u32 seclen)
805 {
806 }
807
808 #ifdef CONFIG_KEYS
cap_key_alloc(struct key * key,const struct cred * cred,unsigned long flags)809 static int cap_key_alloc(struct key *key, const struct cred *cred,
810 unsigned long flags)
811 {
812 return 0;
813 }
814
cap_key_free(struct key * key)815 static void cap_key_free(struct key *key)
816 {
817 }
818
cap_key_permission(key_ref_t key_ref,const struct cred * cred,key_perm_t perm)819 static int cap_key_permission(key_ref_t key_ref, const struct cred *cred,
820 key_perm_t perm)
821 {
822 return 0;
823 }
824
cap_key_getsecurity(struct key * key,char ** _buffer)825 static int cap_key_getsecurity(struct key *key, char **_buffer)
826 {
827 *_buffer = NULL;
828 return 0;
829 }
830
831 #endif /* CONFIG_KEYS */
832
833 #ifdef CONFIG_AUDIT
cap_audit_rule_init(u32 field,u32 op,char * rulestr,void ** lsmrule)834 static int cap_audit_rule_init(u32 field, u32 op, char *rulestr, void **lsmrule)
835 {
836 return 0;
837 }
838
cap_audit_rule_known(struct audit_krule * krule)839 static int cap_audit_rule_known(struct audit_krule *krule)
840 {
841 return 0;
842 }
843
cap_audit_rule_match(u32 secid,u32 field,u32 op,void * lsmrule,struct audit_context * actx)844 static int cap_audit_rule_match(u32 secid, u32 field, u32 op, void *lsmrule,
845 struct audit_context *actx)
846 {
847 return 0;
848 }
849
cap_audit_rule_free(void * lsmrule)850 static void cap_audit_rule_free(void *lsmrule)
851 {
852 }
853 #endif /* CONFIG_AUDIT */
854
855 struct security_operations default_security_ops = {
856 .name = "default",
857 };
858
859 #define set_to_cap_if_null(ops, function) \
860 do { \
861 if (!ops->function) { \
862 ops->function = cap_##function; \
863 pr_debug("Had to override the " #function \
864 " security operation with the default.\n");\
865 } \
866 } while (0)
867
security_fixup_ops(struct security_operations * ops)868 void security_fixup_ops(struct security_operations *ops)
869 {
870 set_to_cap_if_null(ops, ptrace_may_access);
871 set_to_cap_if_null(ops, ptrace_traceme);
872 set_to_cap_if_null(ops, capget);
873 set_to_cap_if_null(ops, capset);
874 set_to_cap_if_null(ops, acct);
875 set_to_cap_if_null(ops, capable);
876 set_to_cap_if_null(ops, quotactl);
877 set_to_cap_if_null(ops, quota_on);
878 set_to_cap_if_null(ops, sysctl);
879 set_to_cap_if_null(ops, syslog);
880 set_to_cap_if_null(ops, settime);
881 set_to_cap_if_null(ops, vm_enough_memory);
882 set_to_cap_if_null(ops, bprm_set_creds);
883 set_to_cap_if_null(ops, bprm_committing_creds);
884 set_to_cap_if_null(ops, bprm_committed_creds);
885 set_to_cap_if_null(ops, bprm_check_security);
886 set_to_cap_if_null(ops, bprm_secureexec);
887 set_to_cap_if_null(ops, sb_alloc_security);
888 set_to_cap_if_null(ops, sb_free_security);
889 set_to_cap_if_null(ops, sb_copy_data);
890 set_to_cap_if_null(ops, sb_kern_mount);
891 set_to_cap_if_null(ops, sb_show_options);
892 set_to_cap_if_null(ops, sb_statfs);
893 set_to_cap_if_null(ops, sb_mount);
894 set_to_cap_if_null(ops, sb_check_sb);
895 set_to_cap_if_null(ops, sb_umount);
896 set_to_cap_if_null(ops, sb_umount_close);
897 set_to_cap_if_null(ops, sb_umount_busy);
898 set_to_cap_if_null(ops, sb_post_remount);
899 set_to_cap_if_null(ops, sb_post_addmount);
900 set_to_cap_if_null(ops, sb_pivotroot);
901 set_to_cap_if_null(ops, sb_post_pivotroot);
902 set_to_cap_if_null(ops, sb_set_mnt_opts);
903 set_to_cap_if_null(ops, sb_clone_mnt_opts);
904 set_to_cap_if_null(ops, sb_parse_opts_str);
905 set_to_cap_if_null(ops, inode_alloc_security);
906 set_to_cap_if_null(ops, inode_free_security);
907 set_to_cap_if_null(ops, inode_init_security);
908 set_to_cap_if_null(ops, inode_create);
909 set_to_cap_if_null(ops, inode_link);
910 set_to_cap_if_null(ops, inode_unlink);
911 set_to_cap_if_null(ops, inode_symlink);
912 set_to_cap_if_null(ops, inode_mkdir);
913 set_to_cap_if_null(ops, inode_rmdir);
914 set_to_cap_if_null(ops, inode_mknod);
915 set_to_cap_if_null(ops, inode_rename);
916 set_to_cap_if_null(ops, inode_readlink);
917 set_to_cap_if_null(ops, inode_follow_link);
918 set_to_cap_if_null(ops, inode_permission);
919 set_to_cap_if_null(ops, inode_setattr);
920 set_to_cap_if_null(ops, inode_getattr);
921 set_to_cap_if_null(ops, inode_delete);
922 set_to_cap_if_null(ops, inode_setxattr);
923 set_to_cap_if_null(ops, inode_post_setxattr);
924 set_to_cap_if_null(ops, inode_getxattr);
925 set_to_cap_if_null(ops, inode_listxattr);
926 set_to_cap_if_null(ops, inode_removexattr);
927 set_to_cap_if_null(ops, inode_need_killpriv);
928 set_to_cap_if_null(ops, inode_killpriv);
929 set_to_cap_if_null(ops, inode_getsecurity);
930 set_to_cap_if_null(ops, inode_setsecurity);
931 set_to_cap_if_null(ops, inode_listsecurity);
932 set_to_cap_if_null(ops, inode_getsecid);
933 #ifdef CONFIG_SECURITY_PATH
934 set_to_cap_if_null(ops, path_mknod);
935 set_to_cap_if_null(ops, path_mkdir);
936 set_to_cap_if_null(ops, path_rmdir);
937 set_to_cap_if_null(ops, path_unlink);
938 set_to_cap_if_null(ops, path_symlink);
939 set_to_cap_if_null(ops, path_link);
940 set_to_cap_if_null(ops, path_rename);
941 set_to_cap_if_null(ops, path_truncate);
942 #endif
943 set_to_cap_if_null(ops, file_permission);
944 set_to_cap_if_null(ops, file_alloc_security);
945 set_to_cap_if_null(ops, file_free_security);
946 set_to_cap_if_null(ops, file_ioctl);
947 set_to_cap_if_null(ops, file_mmap);
948 set_to_cap_if_null(ops, file_mprotect);
949 set_to_cap_if_null(ops, file_lock);
950 set_to_cap_if_null(ops, file_fcntl);
951 set_to_cap_if_null(ops, file_set_fowner);
952 set_to_cap_if_null(ops, file_send_sigiotask);
953 set_to_cap_if_null(ops, file_receive);
954 set_to_cap_if_null(ops, dentry_open);
955 set_to_cap_if_null(ops, task_create);
956 set_to_cap_if_null(ops, cred_free);
957 set_to_cap_if_null(ops, cred_prepare);
958 set_to_cap_if_null(ops, cred_commit);
959 set_to_cap_if_null(ops, kernel_act_as);
960 set_to_cap_if_null(ops, kernel_create_files_as);
961 set_to_cap_if_null(ops, task_setuid);
962 set_to_cap_if_null(ops, task_fix_setuid);
963 set_to_cap_if_null(ops, task_setgid);
964 set_to_cap_if_null(ops, task_setpgid);
965 set_to_cap_if_null(ops, task_getpgid);
966 set_to_cap_if_null(ops, task_getsid);
967 set_to_cap_if_null(ops, task_getsecid);
968 set_to_cap_if_null(ops, task_setgroups);
969 set_to_cap_if_null(ops, task_setnice);
970 set_to_cap_if_null(ops, task_setioprio);
971 set_to_cap_if_null(ops, task_getioprio);
972 set_to_cap_if_null(ops, task_setrlimit);
973 set_to_cap_if_null(ops, task_setscheduler);
974 set_to_cap_if_null(ops, task_getscheduler);
975 set_to_cap_if_null(ops, task_movememory);
976 set_to_cap_if_null(ops, task_wait);
977 set_to_cap_if_null(ops, task_kill);
978 set_to_cap_if_null(ops, task_prctl);
979 set_to_cap_if_null(ops, task_to_inode);
980 set_to_cap_if_null(ops, ipc_permission);
981 set_to_cap_if_null(ops, ipc_getsecid);
982 set_to_cap_if_null(ops, msg_msg_alloc_security);
983 set_to_cap_if_null(ops, msg_msg_free_security);
984 set_to_cap_if_null(ops, msg_queue_alloc_security);
985 set_to_cap_if_null(ops, msg_queue_free_security);
986 set_to_cap_if_null(ops, msg_queue_associate);
987 set_to_cap_if_null(ops, msg_queue_msgctl);
988 set_to_cap_if_null(ops, msg_queue_msgsnd);
989 set_to_cap_if_null(ops, msg_queue_msgrcv);
990 set_to_cap_if_null(ops, shm_alloc_security);
991 set_to_cap_if_null(ops, shm_free_security);
992 set_to_cap_if_null(ops, shm_associate);
993 set_to_cap_if_null(ops, shm_shmctl);
994 set_to_cap_if_null(ops, shm_shmat);
995 set_to_cap_if_null(ops, sem_alloc_security);
996 set_to_cap_if_null(ops, sem_free_security);
997 set_to_cap_if_null(ops, sem_associate);
998 set_to_cap_if_null(ops, sem_semctl);
999 set_to_cap_if_null(ops, sem_semop);
1000 set_to_cap_if_null(ops, netlink_send);
1001 set_to_cap_if_null(ops, netlink_recv);
1002 set_to_cap_if_null(ops, d_instantiate);
1003 set_to_cap_if_null(ops, getprocattr);
1004 set_to_cap_if_null(ops, setprocattr);
1005 set_to_cap_if_null(ops, secid_to_secctx);
1006 set_to_cap_if_null(ops, secctx_to_secid);
1007 set_to_cap_if_null(ops, release_secctx);
1008 #ifdef CONFIG_SECURITY_NETWORK
1009 set_to_cap_if_null(ops, unix_stream_connect);
1010 set_to_cap_if_null(ops, unix_may_send);
1011 set_to_cap_if_null(ops, socket_create);
1012 set_to_cap_if_null(ops, socket_post_create);
1013 set_to_cap_if_null(ops, socket_bind);
1014 set_to_cap_if_null(ops, socket_connect);
1015 set_to_cap_if_null(ops, socket_listen);
1016 set_to_cap_if_null(ops, socket_accept);
1017 set_to_cap_if_null(ops, socket_post_accept);
1018 set_to_cap_if_null(ops, socket_sendmsg);
1019 set_to_cap_if_null(ops, socket_recvmsg);
1020 set_to_cap_if_null(ops, socket_getsockname);
1021 set_to_cap_if_null(ops, socket_getpeername);
1022 set_to_cap_if_null(ops, socket_setsockopt);
1023 set_to_cap_if_null(ops, socket_getsockopt);
1024 set_to_cap_if_null(ops, socket_shutdown);
1025 set_to_cap_if_null(ops, socket_sock_rcv_skb);
1026 set_to_cap_if_null(ops, socket_getpeersec_stream);
1027 set_to_cap_if_null(ops, socket_getpeersec_dgram);
1028 set_to_cap_if_null(ops, sk_alloc_security);
1029 set_to_cap_if_null(ops, sk_free_security);
1030 set_to_cap_if_null(ops, sk_clone_security);
1031 set_to_cap_if_null(ops, sk_getsecid);
1032 set_to_cap_if_null(ops, sock_graft);
1033 set_to_cap_if_null(ops, inet_conn_request);
1034 set_to_cap_if_null(ops, inet_csk_clone);
1035 set_to_cap_if_null(ops, inet_conn_established);
1036 set_to_cap_if_null(ops, req_classify_flow);
1037 #endif /* CONFIG_SECURITY_NETWORK */
1038 #ifdef CONFIG_SECURITY_NETWORK_XFRM
1039 set_to_cap_if_null(ops, xfrm_policy_alloc_security);
1040 set_to_cap_if_null(ops, xfrm_policy_clone_security);
1041 set_to_cap_if_null(ops, xfrm_policy_free_security);
1042 set_to_cap_if_null(ops, xfrm_policy_delete_security);
1043 set_to_cap_if_null(ops, xfrm_state_alloc_security);
1044 set_to_cap_if_null(ops, xfrm_state_free_security);
1045 set_to_cap_if_null(ops, xfrm_state_delete_security);
1046 set_to_cap_if_null(ops, xfrm_policy_lookup);
1047 set_to_cap_if_null(ops, xfrm_state_pol_flow_match);
1048 set_to_cap_if_null(ops, xfrm_decode_session);
1049 #endif /* CONFIG_SECURITY_NETWORK_XFRM */
1050 #ifdef CONFIG_KEYS
1051 set_to_cap_if_null(ops, key_alloc);
1052 set_to_cap_if_null(ops, key_free);
1053 set_to_cap_if_null(ops, key_permission);
1054 set_to_cap_if_null(ops, key_getsecurity);
1055 #endif /* CONFIG_KEYS */
1056 #ifdef CONFIG_AUDIT
1057 set_to_cap_if_null(ops, audit_rule_init);
1058 set_to_cap_if_null(ops, audit_rule_known);
1059 set_to_cap_if_null(ops, audit_rule_match);
1060 set_to_cap_if_null(ops, audit_rule_free);
1061 #endif
1062 }
1063