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