4 * Copyright (C) 2001 WireX Communications, Inc <chris@wirex.com>
5 * Copyright (C) 2001 Greg Kroah-Hartman <greg@kroah.com>
6 * Copyright (C) 2001 Networks Associates Technology, Inc <ssmalley@nai.com>
7 * Copyright (C) 2001 James Morris <jmorris@intercode.com.au>
8 * Copyright (C) 2001 Silicon Graphics, Inc. (Trust Technology Group)
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
15 * Due to this file being licensed under the GPL there is controversy over
16 * whether this permits you to write a module that #includes this file
17 * without placing your module under the GPL. Please consult a lawyer for
18 * advice before doing this.
22 #ifndef __LINUX_SECURITY_H
23 #define __LINUX_SECURITY_H
25 #include <linux/key.h>
26 #include <linux/capability.h>
27 #include <linux/slab.h>
28 #include <linux/err.h>
29 #include <linux/string.h>
50 struct file_operations;
58 /* If capable should audit the security request */
59 #define SECURITY_CAP_NOAUDIT 0
60 #define SECURITY_CAP_AUDIT 1
62 /* LSM Agnostic defines for sb_set_mnt_opts */
63 #define SECURITY_LSM_NATIVE_LABELS 1
67 struct user_namespace;
70 /* These functions are in security/commoncap.c */
71 extern int cap_capable(const struct cred *cred, struct user_namespace *ns,
73 extern int cap_settime(const struct timespec *ts, const struct timezone *tz);
74 extern int cap_ptrace_access_check(struct task_struct *child, unsigned int mode);
75 extern int cap_ptrace_traceme(struct task_struct *parent);
76 extern int cap_capget(struct task_struct *target, kernel_cap_t *effective, kernel_cap_t *inheritable, kernel_cap_t *permitted);
77 extern int cap_capset(struct cred *new, const struct cred *old,
78 const kernel_cap_t *effective,
79 const kernel_cap_t *inheritable,
80 const kernel_cap_t *permitted);
81 extern int cap_bprm_set_creds(struct linux_binprm *bprm);
82 extern int cap_bprm_secureexec(struct linux_binprm *bprm);
83 extern int cap_inode_setxattr(struct dentry *dentry, const char *name,
84 const void *value, size_t size, int flags);
85 extern int cap_inode_removexattr(struct dentry *dentry, const char *name);
86 extern int cap_inode_need_killpriv(struct dentry *dentry);
87 extern int cap_inode_killpriv(struct dentry *dentry);
88 extern int cap_mmap_addr(unsigned long addr);
89 extern int cap_mmap_file(struct file *file, unsigned long reqprot,
90 unsigned long prot, unsigned long flags);
91 extern int cap_task_fix_setuid(struct cred *new, const struct cred *old, int flags);
92 extern int cap_task_prctl(int option, unsigned long arg2, unsigned long arg3,
93 unsigned long arg4, unsigned long arg5);
94 extern int cap_task_setscheduler(struct task_struct *p);
95 extern int cap_task_setioprio(struct task_struct *p, int ioprio);
96 extern int cap_task_setnice(struct task_struct *p, int nice);
97 extern int cap_vm_enough_memory(struct mm_struct *mm, long pages);
106 struct xfrm_selector;
109 struct xfrm_user_sec_ctx;
113 extern unsigned long mmap_min_addr;
114 extern unsigned long dac_mmap_min_addr;
116 #define mmap_min_addr 0UL
117 #define dac_mmap_min_addr 0UL
121 * Values used in the task_security_ops calls
123 /* setuid or setgid, id0 == uid or gid */
124 #define LSM_SETID_ID 1
126 /* setreuid or setregid, id0 == real, id1 == eff */
127 #define LSM_SETID_RE 2
129 /* setresuid or setresgid, id0 == real, id1 == eff, uid2 == saved */
130 #define LSM_SETID_RES 4
132 /* setfsuid or setfsgid, id0 == fsuid or fsgid */
133 #define LSM_SETID_FS 8
135 /* forward declares to avoid warnings */
139 /* bprm->unsafe reasons */
140 #define LSM_UNSAFE_SHARE 1
141 #define LSM_UNSAFE_PTRACE 2
142 #define LSM_UNSAFE_PTRACE_CAP 4
143 #define LSM_UNSAFE_NO_NEW_PRIVS 8
146 extern int mmap_min_addr_handler(struct ctl_table *table, int write,
147 void __user *buffer, size_t *lenp, loff_t *ppos);
150 /* security_inode_init_security callback function to write xattrs */
151 typedef int (*initxattrs) (struct inode *inode,
152 const struct xattr *xattr_array, void *fs_data);
154 #ifdef CONFIG_SECURITY
156 struct security_mnt_opts {
162 static inline void security_init_mnt_opts(struct security_mnt_opts *opts)
164 opts->mnt_opts = NULL;
165 opts->mnt_opts_flags = NULL;
166 opts->num_mnt_opts = 0;
169 static inline void security_free_mnt_opts(struct security_mnt_opts *opts)
173 for (i = 0; i < opts->num_mnt_opts; i++)
174 kfree(opts->mnt_opts[i]);
175 kfree(opts->mnt_opts);
176 opts->mnt_opts = NULL;
177 kfree(opts->mnt_opts_flags);
178 opts->mnt_opts_flags = NULL;
179 opts->num_mnt_opts = 0;
183 extern int security_init(void);
185 /* Security operations */
186 int security_binder_set_context_mgr(struct task_struct *mgr);
187 int security_binder_transaction(struct task_struct *from,
188 struct task_struct *to);
189 int security_binder_transfer_binder(struct task_struct *from,
190 struct task_struct *to);
191 int security_binder_transfer_file(struct task_struct *from,
192 struct task_struct *to, struct file *file);
193 int security_ptrace_access_check(struct task_struct *child, unsigned int mode);
194 int security_ptrace_traceme(struct task_struct *parent);
195 int security_capget(struct task_struct *target,
196 kernel_cap_t *effective,
197 kernel_cap_t *inheritable,
198 kernel_cap_t *permitted);
199 int security_capset(struct cred *new, const struct cred *old,
200 const kernel_cap_t *effective,
201 const kernel_cap_t *inheritable,
202 const kernel_cap_t *permitted);
203 int security_capable(const struct cred *cred, struct user_namespace *ns,
205 int security_capable_noaudit(const struct cred *cred, struct user_namespace *ns,
207 int security_quotactl(int cmds, int type, int id, struct super_block *sb);
208 int security_quota_on(struct dentry *dentry);
209 int security_syslog(int type);
210 int security_settime(const struct timespec *ts, const struct timezone *tz);
211 int security_vm_enough_memory_mm(struct mm_struct *mm, long pages);
212 int security_bprm_set_creds(struct linux_binprm *bprm);
213 int security_bprm_check(struct linux_binprm *bprm);
214 void security_bprm_committing_creds(struct linux_binprm *bprm);
215 void security_bprm_committed_creds(struct linux_binprm *bprm);
216 int security_bprm_secureexec(struct linux_binprm *bprm);
217 int security_sb_alloc(struct super_block *sb);
218 void security_sb_free(struct super_block *sb);
219 int security_sb_copy_data(char *orig, char *copy);
220 int security_sb_remount(struct super_block *sb, void *data);
221 int security_sb_kern_mount(struct super_block *sb, int flags, void *data);
222 int security_sb_show_options(struct seq_file *m, struct super_block *sb);
223 int security_sb_statfs(struct dentry *dentry);
224 int security_sb_mount(const char *dev_name, struct path *path,
225 const char *type, unsigned long flags, void *data);
226 int security_sb_umount(struct vfsmount *mnt, int flags);
227 int security_sb_pivotroot(struct path *old_path, struct path *new_path);
228 int security_sb_set_mnt_opts(struct super_block *sb,
229 struct security_mnt_opts *opts,
230 unsigned long kern_flags,
231 unsigned long *set_kern_flags);
232 int security_sb_clone_mnt_opts(const struct super_block *oldsb,
233 struct super_block *newsb);
234 int security_sb_parse_opts_str(char *options, struct security_mnt_opts *opts);
235 int security_dentry_init_security(struct dentry *dentry, int mode,
236 struct qstr *name, void **ctx,
239 int security_inode_alloc(struct inode *inode);
240 void security_inode_free(struct inode *inode);
241 int security_inode_init_security(struct inode *inode, struct inode *dir,
242 const struct qstr *qstr,
243 initxattrs initxattrs, void *fs_data);
244 int security_old_inode_init_security(struct inode *inode, struct inode *dir,
245 const struct qstr *qstr, const char **name,
246 void **value, size_t *len);
247 int security_inode_create(struct inode *dir, struct dentry *dentry, umode_t mode);
248 int security_inode_link(struct dentry *old_dentry, struct inode *dir,
249 struct dentry *new_dentry);
250 int security_inode_unlink(struct inode *dir, struct dentry *dentry);
251 int security_inode_symlink(struct inode *dir, struct dentry *dentry,
252 const char *old_name);
253 int security_inode_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode);
254 int security_inode_rmdir(struct inode *dir, struct dentry *dentry);
255 int security_inode_mknod(struct inode *dir, struct dentry *dentry, umode_t mode, dev_t dev);
256 int security_inode_rename(struct inode *old_dir, struct dentry *old_dentry,
257 struct inode *new_dir, struct dentry *new_dentry,
259 int security_inode_readlink(struct dentry *dentry);
260 int security_inode_follow_link(struct dentry *dentry, struct inode *inode,
262 int security_inode_permission(struct inode *inode, int mask);
263 int security_inode_setattr(struct dentry *dentry, struct iattr *attr);
264 int security_inode_getattr(const struct path *path);
265 int security_inode_setxattr(struct dentry *dentry, const char *name,
266 const void *value, size_t size, int flags);
267 void security_inode_post_setxattr(struct dentry *dentry, const char *name,
268 const void *value, size_t size, int flags);
269 int security_inode_getxattr(struct dentry *dentry, const char *name);
270 int security_inode_listxattr(struct dentry *dentry);
271 int security_inode_removexattr(struct dentry *dentry, const char *name);
272 int security_inode_need_killpriv(struct dentry *dentry);
273 int security_inode_killpriv(struct dentry *dentry);
274 int security_inode_getsecurity(struct inode *inode, const char *name, void **buffer, bool alloc);
275 int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags);
276 int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size);
277 void security_inode_getsecid(struct inode *inode, u32 *secid);
278 int security_file_permission(struct file *file, int mask);
279 int security_file_alloc(struct file *file);
280 void security_file_free(struct file *file);
281 int security_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg);
282 int security_mmap_file(struct file *file, unsigned long prot,
283 unsigned long flags);
284 int security_mmap_addr(unsigned long addr);
285 int security_file_mprotect(struct vm_area_struct *vma, unsigned long reqprot,
287 int security_file_lock(struct file *file, unsigned int cmd);
288 int security_file_fcntl(struct file *file, unsigned int cmd, unsigned long arg);
289 void security_file_set_fowner(struct file *file);
290 int security_file_send_sigiotask(struct task_struct *tsk,
291 struct fown_struct *fown, int sig);
292 int security_file_receive(struct file *file);
293 int security_file_open(struct file *file, const struct cred *cred);
294 int security_task_create(unsigned long clone_flags);
295 void security_task_free(struct task_struct *task);
296 int security_cred_alloc_blank(struct cred *cred, gfp_t gfp);
297 void security_cred_free(struct cred *cred);
298 int security_prepare_creds(struct cred *new, const struct cred *old, gfp_t gfp);
299 void security_transfer_creds(struct cred *new, const struct cred *old);
300 int security_kernel_act_as(struct cred *new, u32 secid);
301 int security_kernel_create_files_as(struct cred *new, struct inode *inode);
302 int security_kernel_fw_from_file(struct file *file, char *buf, size_t size);
303 int security_kernel_module_request(char *kmod_name);
304 int security_kernel_module_from_file(struct file *file);
305 int security_kernel_post_read_file(struct file *file, char *buf, loff_t size,
306 enum kernel_read_file_id id);
307 int security_task_fix_setuid(struct cred *new, const struct cred *old,
309 int security_task_setpgid(struct task_struct *p, pid_t pgid);
310 int security_task_getpgid(struct task_struct *p);
311 int security_task_getsid(struct task_struct *p);
312 void security_task_getsecid(struct task_struct *p, u32 *secid);
313 int security_task_setnice(struct task_struct *p, int nice);
314 int security_task_setioprio(struct task_struct *p, int ioprio);
315 int security_task_getioprio(struct task_struct *p);
316 int security_task_setrlimit(struct task_struct *p, unsigned int resource,
317 struct rlimit *new_rlim);
318 int security_task_setscheduler(struct task_struct *p);
319 int security_task_getscheduler(struct task_struct *p);
320 int security_task_movememory(struct task_struct *p);
321 int security_task_kill(struct task_struct *p, struct siginfo *info,
323 int security_task_wait(struct task_struct *p);
324 int security_task_prctl(int option, unsigned long arg2, unsigned long arg3,
325 unsigned long arg4, unsigned long arg5);
326 void security_task_to_inode(struct task_struct *p, struct inode *inode);
327 int security_ipc_permission(struct kern_ipc_perm *ipcp, short flag);
328 void security_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid);
329 int security_msg_msg_alloc(struct msg_msg *msg);
330 void security_msg_msg_free(struct msg_msg *msg);
331 int security_msg_queue_alloc(struct msg_queue *msq);
332 void security_msg_queue_free(struct msg_queue *msq);
333 int security_msg_queue_associate(struct msg_queue *msq, int msqflg);
334 int security_msg_queue_msgctl(struct msg_queue *msq, int cmd);
335 int security_msg_queue_msgsnd(struct msg_queue *msq,
336 struct msg_msg *msg, int msqflg);
337 int security_msg_queue_msgrcv(struct msg_queue *msq, struct msg_msg *msg,
338 struct task_struct *target, long type, int mode);
339 int security_shm_alloc(struct shmid_kernel *shp);
340 void security_shm_free(struct shmid_kernel *shp);
341 int security_shm_associate(struct shmid_kernel *shp, int shmflg);
342 int security_shm_shmctl(struct shmid_kernel *shp, int cmd);
343 int security_shm_shmat(struct shmid_kernel *shp, char __user *shmaddr, int shmflg);
344 int security_sem_alloc(struct sem_array *sma);
345 void security_sem_free(struct sem_array *sma);
346 int security_sem_associate(struct sem_array *sma, int semflg);
347 int security_sem_semctl(struct sem_array *sma, int cmd);
348 int security_sem_semop(struct sem_array *sma, struct sembuf *sops,
349 unsigned nsops, int alter);
350 void security_d_instantiate(struct dentry *dentry, struct inode *inode);
351 int security_getprocattr(struct task_struct *p, char *name, char **value);
352 int security_setprocattr(struct task_struct *p, char *name, void *value, size_t size);
353 int security_netlink_send(struct sock *sk, struct sk_buff *skb);
354 int security_ismaclabel(const char *name);
355 int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen);
356 int security_secctx_to_secid(const char *secdata, u32 seclen, u32 *secid);
357 void security_release_secctx(char *secdata, u32 seclen);
359 void security_inode_invalidate_secctx(struct inode *inode);
360 int security_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen);
361 int security_inode_setsecctx(struct dentry *dentry, void *ctx, u32 ctxlen);
362 int security_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen);
363 #else /* CONFIG_SECURITY */
364 struct security_mnt_opts {
367 static inline void security_init_mnt_opts(struct security_mnt_opts *opts)
371 static inline void security_free_mnt_opts(struct security_mnt_opts *opts)
376 * This is the default capabilities functionality. Most of these functions
377 * are just stubbed out, but a few must call the proper capable code.
380 static inline int security_init(void)
385 static inline int security_binder_set_context_mgr(struct task_struct *mgr)
390 static inline int security_binder_transaction(struct task_struct *from,
391 struct task_struct *to)
396 static inline int security_binder_transfer_binder(struct task_struct *from,
397 struct task_struct *to)
402 static inline int security_binder_transfer_file(struct task_struct *from,
403 struct task_struct *to,
409 static inline int security_ptrace_access_check(struct task_struct *child,
412 return cap_ptrace_access_check(child, mode);
415 static inline int security_ptrace_traceme(struct task_struct *parent)
417 return cap_ptrace_traceme(parent);
420 static inline int security_capget(struct task_struct *target,
421 kernel_cap_t *effective,
422 kernel_cap_t *inheritable,
423 kernel_cap_t *permitted)
425 return cap_capget(target, effective, inheritable, permitted);
428 static inline int security_capset(struct cred *new,
429 const struct cred *old,
430 const kernel_cap_t *effective,
431 const kernel_cap_t *inheritable,
432 const kernel_cap_t *permitted)
434 return cap_capset(new, old, effective, inheritable, permitted);
437 static inline int security_capable(const struct cred *cred,
438 struct user_namespace *ns, int cap)
440 return cap_capable(cred, ns, cap, SECURITY_CAP_AUDIT);
443 static inline int security_capable_noaudit(const struct cred *cred,
444 struct user_namespace *ns, int cap) {
445 return cap_capable(cred, ns, cap, SECURITY_CAP_NOAUDIT);
448 static inline int security_quotactl(int cmds, int type, int id,
449 struct super_block *sb)
454 static inline int security_quota_on(struct dentry *dentry)
459 static inline int security_syslog(int type)
464 static inline int security_settime(const struct timespec *ts,
465 const struct timezone *tz)
467 return cap_settime(ts, tz);
470 static inline int security_vm_enough_memory_mm(struct mm_struct *mm, long pages)
472 return __vm_enough_memory(mm, pages, cap_vm_enough_memory(mm, pages));
475 static inline int security_bprm_set_creds(struct linux_binprm *bprm)
477 return cap_bprm_set_creds(bprm);
480 static inline int security_bprm_check(struct linux_binprm *bprm)
485 static inline void security_bprm_committing_creds(struct linux_binprm *bprm)
489 static inline void security_bprm_committed_creds(struct linux_binprm *bprm)
493 static inline int security_bprm_secureexec(struct linux_binprm *bprm)
495 return cap_bprm_secureexec(bprm);
498 static inline int security_sb_alloc(struct super_block *sb)
503 static inline void security_sb_free(struct super_block *sb)
506 static inline int security_sb_copy_data(char *orig, char *copy)
511 static inline int security_sb_remount(struct super_block *sb, void *data)
516 static inline int security_sb_kern_mount(struct super_block *sb, int flags, void *data)
521 static inline int security_sb_show_options(struct seq_file *m,
522 struct super_block *sb)
527 static inline int security_sb_statfs(struct dentry *dentry)
532 static inline int security_sb_mount(const char *dev_name, struct path *path,
533 const char *type, unsigned long flags,
539 static inline int security_sb_umount(struct vfsmount *mnt, int flags)
544 static inline int security_sb_pivotroot(struct path *old_path,
545 struct path *new_path)
550 static inline int security_sb_set_mnt_opts(struct super_block *sb,
551 struct security_mnt_opts *opts,
552 unsigned long kern_flags,
553 unsigned long *set_kern_flags)
558 static inline int security_sb_clone_mnt_opts(const struct super_block *oldsb,
559 struct super_block *newsb)
564 static inline int security_sb_parse_opts_str(char *options, struct security_mnt_opts *opts)
569 static inline int security_inode_alloc(struct inode *inode)
574 static inline void security_inode_free(struct inode *inode)
577 static inline int security_dentry_init_security(struct dentry *dentry,
587 static inline int security_inode_init_security(struct inode *inode,
589 const struct qstr *qstr,
590 const initxattrs xattrs,
596 static inline int security_old_inode_init_security(struct inode *inode,
598 const struct qstr *qstr,
600 void **value, size_t *len)
605 static inline int security_inode_create(struct inode *dir,
606 struct dentry *dentry,
612 static inline int security_inode_link(struct dentry *old_dentry,
614 struct dentry *new_dentry)
619 static inline int security_inode_unlink(struct inode *dir,
620 struct dentry *dentry)
625 static inline int security_inode_symlink(struct inode *dir,
626 struct dentry *dentry,
627 const char *old_name)
632 static inline int security_inode_mkdir(struct inode *dir,
633 struct dentry *dentry,
639 static inline int security_inode_rmdir(struct inode *dir,
640 struct dentry *dentry)
645 static inline int security_inode_mknod(struct inode *dir,
646 struct dentry *dentry,
652 static inline int security_inode_rename(struct inode *old_dir,
653 struct dentry *old_dentry,
654 struct inode *new_dir,
655 struct dentry *new_dentry,
661 static inline int security_inode_readlink(struct dentry *dentry)
666 static inline int security_inode_follow_link(struct dentry *dentry,
673 static inline int security_inode_permission(struct inode *inode, int mask)
678 static inline int security_inode_setattr(struct dentry *dentry,
684 static inline int security_inode_getattr(const struct path *path)
689 static inline int security_inode_setxattr(struct dentry *dentry,
690 const char *name, const void *value, size_t size, int flags)
692 return cap_inode_setxattr(dentry, name, value, size, flags);
695 static inline void security_inode_post_setxattr(struct dentry *dentry,
696 const char *name, const void *value, size_t size, int flags)
699 static inline int security_inode_getxattr(struct dentry *dentry,
705 static inline int security_inode_listxattr(struct dentry *dentry)
710 static inline int security_inode_removexattr(struct dentry *dentry,
713 return cap_inode_removexattr(dentry, name);
716 static inline int security_inode_need_killpriv(struct dentry *dentry)
718 return cap_inode_need_killpriv(dentry);
721 static inline int security_inode_killpriv(struct dentry *dentry)
723 return cap_inode_killpriv(dentry);
726 static inline int security_inode_getsecurity(struct inode *inode, const char *name, void **buffer, bool alloc)
731 static inline int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags)
736 static inline int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size)
741 static inline void security_inode_getsecid(struct inode *inode, u32 *secid)
746 static inline int security_file_permission(struct file *file, int mask)
751 static inline int security_file_alloc(struct file *file)
756 static inline void security_file_free(struct file *file)
759 static inline int security_file_ioctl(struct file *file, unsigned int cmd,
765 static inline int security_mmap_file(struct file *file, unsigned long prot,
771 static inline int security_mmap_addr(unsigned long addr)
773 return cap_mmap_addr(addr);
776 static inline int security_file_mprotect(struct vm_area_struct *vma,
777 unsigned long reqprot,
783 static inline int security_file_lock(struct file *file, unsigned int cmd)
788 static inline int security_file_fcntl(struct file *file, unsigned int cmd,
794 static inline void security_file_set_fowner(struct file *file)
799 static inline int security_file_send_sigiotask(struct task_struct *tsk,
800 struct fown_struct *fown,
806 static inline int security_file_receive(struct file *file)
811 static inline int security_file_open(struct file *file,
812 const struct cred *cred)
817 static inline int security_task_create(unsigned long clone_flags)
822 static inline void security_task_free(struct task_struct *task)
825 static inline int security_cred_alloc_blank(struct cred *cred, gfp_t gfp)
830 static inline void security_cred_free(struct cred *cred)
833 static inline int security_prepare_creds(struct cred *new,
834 const struct cred *old,
840 static inline void security_transfer_creds(struct cred *new,
841 const struct cred *old)
845 static inline int security_kernel_act_as(struct cred *cred, u32 secid)
850 static inline int security_kernel_create_files_as(struct cred *cred,
856 static inline int security_kernel_fw_from_file(struct file *file,
857 char *buf, size_t size)
862 static inline int security_kernel_module_request(char *kmod_name)
867 static inline int security_kernel_module_from_file(struct file *file)
872 static inline int security_kernel_post_read_file(struct file *file,
873 char *buf, loff_t size,
874 enum kernel_read_file_id id)
879 static inline int security_task_fix_setuid(struct cred *new,
880 const struct cred *old,
883 return cap_task_fix_setuid(new, old, flags);
886 static inline int security_task_setpgid(struct task_struct *p, pid_t pgid)
891 static inline int security_task_getpgid(struct task_struct *p)
896 static inline int security_task_getsid(struct task_struct *p)
901 static inline void security_task_getsecid(struct task_struct *p, u32 *secid)
906 static inline int security_task_setnice(struct task_struct *p, int nice)
908 return cap_task_setnice(p, nice);
911 static inline int security_task_setioprio(struct task_struct *p, int ioprio)
913 return cap_task_setioprio(p, ioprio);
916 static inline int security_task_getioprio(struct task_struct *p)
921 static inline int security_task_setrlimit(struct task_struct *p,
922 unsigned int resource,
923 struct rlimit *new_rlim)
928 static inline int security_task_setscheduler(struct task_struct *p)
930 return cap_task_setscheduler(p);
933 static inline int security_task_getscheduler(struct task_struct *p)
938 static inline int security_task_movememory(struct task_struct *p)
943 static inline int security_task_kill(struct task_struct *p,
944 struct siginfo *info, int sig,
950 static inline int security_task_wait(struct task_struct *p)
955 static inline int security_task_prctl(int option, unsigned long arg2,
960 return cap_task_prctl(option, arg2, arg3, arg4, arg5);
963 static inline void security_task_to_inode(struct task_struct *p, struct inode *inode)
966 static inline int security_ipc_permission(struct kern_ipc_perm *ipcp,
972 static inline void security_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid)
977 static inline int security_msg_msg_alloc(struct msg_msg *msg)
982 static inline void security_msg_msg_free(struct msg_msg *msg)
985 static inline int security_msg_queue_alloc(struct msg_queue *msq)
990 static inline void security_msg_queue_free(struct msg_queue *msq)
993 static inline int security_msg_queue_associate(struct msg_queue *msq,
999 static inline int security_msg_queue_msgctl(struct msg_queue *msq, int cmd)
1004 static inline int security_msg_queue_msgsnd(struct msg_queue *msq,
1005 struct msg_msg *msg, int msqflg)
1010 static inline int security_msg_queue_msgrcv(struct msg_queue *msq,
1011 struct msg_msg *msg,
1012 struct task_struct *target,
1013 long type, int mode)
1018 static inline int security_shm_alloc(struct shmid_kernel *shp)
1023 static inline void security_shm_free(struct shmid_kernel *shp)
1026 static inline int security_shm_associate(struct shmid_kernel *shp,
1032 static inline int security_shm_shmctl(struct shmid_kernel *shp, int cmd)
1037 static inline int security_shm_shmat(struct shmid_kernel *shp,
1038 char __user *shmaddr, int shmflg)
1043 static inline int security_sem_alloc(struct sem_array *sma)
1048 static inline void security_sem_free(struct sem_array *sma)
1051 static inline int security_sem_associate(struct sem_array *sma, int semflg)
1056 static inline int security_sem_semctl(struct sem_array *sma, int cmd)
1061 static inline int security_sem_semop(struct sem_array *sma,
1062 struct sembuf *sops, unsigned nsops,
1068 static inline void security_d_instantiate(struct dentry *dentry, struct inode *inode)
1071 static inline int security_getprocattr(struct task_struct *p, char *name, char **value)
1076 static inline int security_setprocattr(struct task_struct *p, char *name, void *value, size_t size)
1081 static inline int security_netlink_send(struct sock *sk, struct sk_buff *skb)
1086 static inline int security_ismaclabel(const char *name)
1091 static inline int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen)
1096 static inline int security_secctx_to_secid(const char *secdata,
1103 static inline void security_release_secctx(char *secdata, u32 seclen)
1107 static inline void security_inode_invalidate_secctx(struct inode *inode)
1111 static inline int security_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen)
1115 static inline int security_inode_setsecctx(struct dentry *dentry, void *ctx, u32 ctxlen)
1119 static inline int security_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen)
1123 #endif /* CONFIG_SECURITY */
1125 #ifdef CONFIG_SECURITY_NETWORK
1127 int security_unix_stream_connect(struct sock *sock, struct sock *other, struct sock *newsk);
1128 int security_unix_may_send(struct socket *sock, struct socket *other);
1129 int security_socket_create(int family, int type, int protocol, int kern);
1130 int security_socket_post_create(struct socket *sock, int family,
1131 int type, int protocol, int kern);
1132 int security_socket_bind(struct socket *sock, struct sockaddr *address, int addrlen);
1133 int security_socket_connect(struct socket *sock, struct sockaddr *address, int addrlen);
1134 int security_socket_listen(struct socket *sock, int backlog);
1135 int security_socket_accept(struct socket *sock, struct socket *newsock);
1136 int security_socket_sendmsg(struct socket *sock, struct msghdr *msg, int size);
1137 int security_socket_recvmsg(struct socket *sock, struct msghdr *msg,
1138 int size, int flags);
1139 int security_socket_getsockname(struct socket *sock);
1140 int security_socket_getpeername(struct socket *sock);
1141 int security_socket_getsockopt(struct socket *sock, int level, int optname);
1142 int security_socket_setsockopt(struct socket *sock, int level, int optname);
1143 int security_socket_shutdown(struct socket *sock, int how);
1144 int security_sock_rcv_skb(struct sock *sk, struct sk_buff *skb);
1145 int security_socket_getpeersec_stream(struct socket *sock, char __user *optval,
1146 int __user *optlen, unsigned len);
1147 int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid);
1148 int security_sk_alloc(struct sock *sk, int family, gfp_t priority);
1149 void security_sk_free(struct sock *sk);
1150 void security_sk_clone(const struct sock *sk, struct sock *newsk);
1151 void security_sk_classify_flow(struct sock *sk, struct flowi *fl);
1152 void security_req_classify_flow(const struct request_sock *req, struct flowi *fl);
1153 void security_sock_graft(struct sock*sk, struct socket *parent);
1154 int security_inet_conn_request(struct sock *sk,
1155 struct sk_buff *skb, struct request_sock *req);
1156 void security_inet_csk_clone(struct sock *newsk,
1157 const struct request_sock *req);
1158 void security_inet_conn_established(struct sock *sk,
1159 struct sk_buff *skb);
1160 int security_secmark_relabel_packet(u32 secid);
1161 void security_secmark_refcount_inc(void);
1162 void security_secmark_refcount_dec(void);
1163 int security_tun_dev_alloc_security(void **security);
1164 void security_tun_dev_free_security(void *security);
1165 int security_tun_dev_create(void);
1166 int security_tun_dev_attach_queue(void *security);
1167 int security_tun_dev_attach(struct sock *sk, void *security);
1168 int security_tun_dev_open(void *security);
1170 #else /* CONFIG_SECURITY_NETWORK */
1171 static inline int security_unix_stream_connect(struct sock *sock,
1178 static inline int security_unix_may_send(struct socket *sock,
1179 struct socket *other)
1184 static inline int security_socket_create(int family, int type,
1185 int protocol, int kern)
1190 static inline int security_socket_post_create(struct socket *sock,
1193 int protocol, int kern)
1198 static inline int security_socket_bind(struct socket *sock,
1199 struct sockaddr *address,
1205 static inline int security_socket_connect(struct socket *sock,
1206 struct sockaddr *address,
1212 static inline int security_socket_listen(struct socket *sock, int backlog)
1217 static inline int security_socket_accept(struct socket *sock,
1218 struct socket *newsock)
1223 static inline int security_socket_sendmsg(struct socket *sock,
1224 struct msghdr *msg, int size)
1229 static inline int security_socket_recvmsg(struct socket *sock,
1230 struct msghdr *msg, int size,
1236 static inline int security_socket_getsockname(struct socket *sock)
1241 static inline int security_socket_getpeername(struct socket *sock)
1246 static inline int security_socket_getsockopt(struct socket *sock,
1247 int level, int optname)
1252 static inline int security_socket_setsockopt(struct socket *sock,
1253 int level, int optname)
1258 static inline int security_socket_shutdown(struct socket *sock, int how)
1262 static inline int security_sock_rcv_skb(struct sock *sk,
1263 struct sk_buff *skb)
1268 static inline int security_socket_getpeersec_stream(struct socket *sock, char __user *optval,
1269 int __user *optlen, unsigned len)
1271 return -ENOPROTOOPT;
1274 static inline int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid)
1276 return -ENOPROTOOPT;
1279 static inline int security_sk_alloc(struct sock *sk, int family, gfp_t priority)
1284 static inline void security_sk_free(struct sock *sk)
1288 static inline void security_sk_clone(const struct sock *sk, struct sock *newsk)
1292 static inline void security_sk_classify_flow(struct sock *sk, struct flowi *fl)
1296 static inline void security_req_classify_flow(const struct request_sock *req, struct flowi *fl)
1300 static inline void security_sock_graft(struct sock *sk, struct socket *parent)
1304 static inline int security_inet_conn_request(struct sock *sk,
1305 struct sk_buff *skb, struct request_sock *req)
1310 static inline void security_inet_csk_clone(struct sock *newsk,
1311 const struct request_sock *req)
1315 static inline void security_inet_conn_established(struct sock *sk,
1316 struct sk_buff *skb)
1320 static inline int security_secmark_relabel_packet(u32 secid)
1325 static inline void security_secmark_refcount_inc(void)
1329 static inline void security_secmark_refcount_dec(void)
1333 static inline int security_tun_dev_alloc_security(void **security)
1338 static inline void security_tun_dev_free_security(void *security)
1342 static inline int security_tun_dev_create(void)
1347 static inline int security_tun_dev_attach_queue(void *security)
1352 static inline int security_tun_dev_attach(struct sock *sk, void *security)
1357 static inline int security_tun_dev_open(void *security)
1361 #endif /* CONFIG_SECURITY_NETWORK */
1363 #ifdef CONFIG_SECURITY_NETWORK_XFRM
1365 int security_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp,
1366 struct xfrm_user_sec_ctx *sec_ctx, gfp_t gfp);
1367 int security_xfrm_policy_clone(struct xfrm_sec_ctx *old_ctx, struct xfrm_sec_ctx **new_ctxp);
1368 void security_xfrm_policy_free(struct xfrm_sec_ctx *ctx);
1369 int security_xfrm_policy_delete(struct xfrm_sec_ctx *ctx);
1370 int security_xfrm_state_alloc(struct xfrm_state *x, struct xfrm_user_sec_ctx *sec_ctx);
1371 int security_xfrm_state_alloc_acquire(struct xfrm_state *x,
1372 struct xfrm_sec_ctx *polsec, u32 secid);
1373 int security_xfrm_state_delete(struct xfrm_state *x);
1374 void security_xfrm_state_free(struct xfrm_state *x);
1375 int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir);
1376 int security_xfrm_state_pol_flow_match(struct xfrm_state *x,
1377 struct xfrm_policy *xp,
1378 const struct flowi *fl);
1379 int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid);
1380 void security_skb_classify_flow(struct sk_buff *skb, struct flowi *fl);
1382 #else /* CONFIG_SECURITY_NETWORK_XFRM */
1384 static inline int security_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp,
1385 struct xfrm_user_sec_ctx *sec_ctx,
1391 static inline int security_xfrm_policy_clone(struct xfrm_sec_ctx *old, struct xfrm_sec_ctx **new_ctxp)
1396 static inline void security_xfrm_policy_free(struct xfrm_sec_ctx *ctx)
1400 static inline int security_xfrm_policy_delete(struct xfrm_sec_ctx *ctx)
1405 static inline int security_xfrm_state_alloc(struct xfrm_state *x,
1406 struct xfrm_user_sec_ctx *sec_ctx)
1411 static inline int security_xfrm_state_alloc_acquire(struct xfrm_state *x,
1412 struct xfrm_sec_ctx *polsec, u32 secid)
1417 static inline void security_xfrm_state_free(struct xfrm_state *x)
1421 static inline int security_xfrm_state_delete(struct xfrm_state *x)
1426 static inline int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir)
1431 static inline int security_xfrm_state_pol_flow_match(struct xfrm_state *x,
1432 struct xfrm_policy *xp, const struct flowi *fl)
1437 static inline int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid)
1442 static inline void security_skb_classify_flow(struct sk_buff *skb, struct flowi *fl)
1446 #endif /* CONFIG_SECURITY_NETWORK_XFRM */
1448 #ifdef CONFIG_SECURITY_PATH
1449 int security_path_unlink(struct path *dir, struct dentry *dentry);
1450 int security_path_mkdir(struct path *dir, struct dentry *dentry, umode_t mode);
1451 int security_path_rmdir(struct path *dir, struct dentry *dentry);
1452 int security_path_mknod(struct path *dir, struct dentry *dentry, umode_t mode,
1454 int security_path_truncate(struct path *path);
1455 int security_path_symlink(struct path *dir, struct dentry *dentry,
1456 const char *old_name);
1457 int security_path_link(struct dentry *old_dentry, struct path *new_dir,
1458 struct dentry *new_dentry);
1459 int security_path_rename(struct path *old_dir, struct dentry *old_dentry,
1460 struct path *new_dir, struct dentry *new_dentry,
1461 unsigned int flags);
1462 int security_path_chmod(struct path *path, umode_t mode);
1463 int security_path_chown(struct path *path, kuid_t uid, kgid_t gid);
1464 int security_path_chroot(struct path *path);
1465 #else /* CONFIG_SECURITY_PATH */
1466 static inline int security_path_unlink(struct path *dir, struct dentry *dentry)
1471 static inline int security_path_mkdir(struct path *dir, struct dentry *dentry,
1477 static inline int security_path_rmdir(struct path *dir, struct dentry *dentry)
1482 static inline int security_path_mknod(struct path *dir, struct dentry *dentry,
1483 umode_t mode, unsigned int dev)
1488 static inline int security_path_truncate(struct path *path)
1493 static inline int security_path_symlink(struct path *dir, struct dentry *dentry,
1494 const char *old_name)
1499 static inline int security_path_link(struct dentry *old_dentry,
1500 struct path *new_dir,
1501 struct dentry *new_dentry)
1506 static inline int security_path_rename(struct path *old_dir,
1507 struct dentry *old_dentry,
1508 struct path *new_dir,
1509 struct dentry *new_dentry,
1515 static inline int security_path_chmod(struct path *path, umode_t mode)
1520 static inline int security_path_chown(struct path *path, kuid_t uid, kgid_t gid)
1525 static inline int security_path_chroot(struct path *path)
1529 #endif /* CONFIG_SECURITY_PATH */
1532 #ifdef CONFIG_SECURITY
1534 int security_key_alloc(struct key *key, const struct cred *cred, unsigned long flags);
1535 void security_key_free(struct key *key);
1536 int security_key_permission(key_ref_t key_ref,
1537 const struct cred *cred, unsigned perm);
1538 int security_key_getsecurity(struct key *key, char **_buffer);
1542 static inline int security_key_alloc(struct key *key,
1543 const struct cred *cred,
1544 unsigned long flags)
1549 static inline void security_key_free(struct key *key)
1553 static inline int security_key_permission(key_ref_t key_ref,
1554 const struct cred *cred,
1560 static inline int security_key_getsecurity(struct key *key, char **_buffer)
1567 #endif /* CONFIG_KEYS */
1570 #ifdef CONFIG_SECURITY
1571 int security_audit_rule_init(u32 field, u32 op, char *rulestr, void **lsmrule);
1572 int security_audit_rule_known(struct audit_krule *krule);
1573 int security_audit_rule_match(u32 secid, u32 field, u32 op, void *lsmrule,
1574 struct audit_context *actx);
1575 void security_audit_rule_free(void *lsmrule);
1579 static inline int security_audit_rule_init(u32 field, u32 op, char *rulestr,
1585 static inline int security_audit_rule_known(struct audit_krule *krule)
1590 static inline int security_audit_rule_match(u32 secid, u32 field, u32 op,
1591 void *lsmrule, struct audit_context *actx)
1596 static inline void security_audit_rule_free(void *lsmrule)
1599 #endif /* CONFIG_SECURITY */
1600 #endif /* CONFIG_AUDIT */
1602 #ifdef CONFIG_SECURITYFS
1604 extern struct dentry *securityfs_create_file(const char *name, umode_t mode,
1605 struct dentry *parent, void *data,
1606 const struct file_operations *fops);
1607 extern struct dentry *securityfs_create_dir(const char *name, struct dentry *parent);
1608 extern void securityfs_remove(struct dentry *dentry);
1610 #else /* CONFIG_SECURITYFS */
1612 static inline struct dentry *securityfs_create_dir(const char *name,
1613 struct dentry *parent)
1615 return ERR_PTR(-ENODEV);
1618 static inline struct dentry *securityfs_create_file(const char *name,
1620 struct dentry *parent,
1622 const struct file_operations *fops)
1624 return ERR_PTR(-ENODEV);
1627 static inline void securityfs_remove(struct dentry *dentry)
1632 #ifdef CONFIG_SECURITY
1634 static inline char *alloc_secdata(void)
1636 return (char *)get_zeroed_page(GFP_KERNEL);
1639 static inline void free_secdata(void *secdata)
1641 free_page((unsigned long)secdata);
1646 static inline char *alloc_secdata(void)
1651 static inline void free_secdata(void *secdata)
1653 #endif /* CONFIG_SECURITY */
1655 #endif /* ! __LINUX_SECURITY_H */