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>
49 struct file_operations;
57 /* If capable should audit the security request */
58 #define SECURITY_CAP_NOAUDIT 0
59 #define SECURITY_CAP_AUDIT 1
61 /* LSM Agnostic defines for sb_set_mnt_opts */
62 #define SECURITY_LSM_NATIVE_LABELS 1
66 struct user_namespace;
69 /* These functions are in security/commoncap.c */
70 extern int cap_capable(const struct cred *cred, struct user_namespace *ns,
72 extern int cap_settime(const struct timespec *ts, const struct timezone *tz);
73 extern int cap_ptrace_access_check(struct task_struct *child, unsigned int mode);
74 extern int cap_ptrace_traceme(struct task_struct *parent);
75 extern int cap_capget(struct task_struct *target, kernel_cap_t *effective, kernel_cap_t *inheritable, kernel_cap_t *permitted);
76 extern int cap_capset(struct cred *new, const struct cred *old,
77 const kernel_cap_t *effective,
78 const kernel_cap_t *inheritable,
79 const kernel_cap_t *permitted);
80 extern int cap_bprm_set_creds(struct linux_binprm *bprm);
81 extern int cap_bprm_secureexec(struct linux_binprm *bprm);
82 extern int cap_inode_setxattr(struct dentry *dentry, const char *name,
83 const void *value, size_t size, int flags);
84 extern int cap_inode_removexattr(struct dentry *dentry, const char *name);
85 extern int cap_inode_need_killpriv(struct dentry *dentry);
86 extern int cap_inode_killpriv(struct dentry *dentry);
87 extern int cap_mmap_addr(unsigned long addr);
88 extern int cap_mmap_file(struct file *file, unsigned long reqprot,
89 unsigned long prot, unsigned long flags);
90 extern int cap_task_fix_setuid(struct cred *new, const struct cred *old, int flags);
91 extern int cap_task_prctl(int option, unsigned long arg2, unsigned long arg3,
92 unsigned long arg4, unsigned long arg5);
93 extern int cap_task_setscheduler(struct task_struct *p);
94 extern int cap_task_setioprio(struct task_struct *p, int ioprio);
95 extern int cap_task_setnice(struct task_struct *p, int nice);
96 extern int cap_vm_enough_memory(struct mm_struct *mm, long pages);
105 struct xfrm_selector;
108 struct xfrm_user_sec_ctx;
112 extern unsigned long mmap_min_addr;
113 extern unsigned long dac_mmap_min_addr;
115 #define mmap_min_addr 0UL
116 #define dac_mmap_min_addr 0UL
120 * Values used in the task_security_ops calls
122 /* setuid or setgid, id0 == uid or gid */
123 #define LSM_SETID_ID 1
125 /* setreuid or setregid, id0 == real, id1 == eff */
126 #define LSM_SETID_RE 2
128 /* setresuid or setresgid, id0 == real, id1 == eff, uid2 == saved */
129 #define LSM_SETID_RES 4
131 /* setfsuid or setfsgid, id0 == fsuid or fsgid */
132 #define LSM_SETID_FS 8
134 /* forward declares to avoid warnings */
138 /* bprm->unsafe reasons */
139 #define LSM_UNSAFE_SHARE 1
140 #define LSM_UNSAFE_PTRACE 2
141 #define LSM_UNSAFE_PTRACE_CAP 4
142 #define LSM_UNSAFE_NO_NEW_PRIVS 8
145 extern int mmap_min_addr_handler(struct ctl_table *table, int write,
146 void __user *buffer, size_t *lenp, loff_t *ppos);
149 /* security_inode_init_security callback function to write xattrs */
150 typedef int (*initxattrs) (struct inode *inode,
151 const struct xattr *xattr_array, void *fs_data);
153 #ifdef CONFIG_SECURITY
155 struct security_mnt_opts {
161 static inline void security_init_mnt_opts(struct security_mnt_opts *opts)
163 opts->mnt_opts = NULL;
164 opts->mnt_opts_flags = NULL;
165 opts->num_mnt_opts = 0;
168 static inline void security_free_mnt_opts(struct security_mnt_opts *opts)
172 for (i = 0; i < opts->num_mnt_opts; i++)
173 kfree(opts->mnt_opts[i]);
174 kfree(opts->mnt_opts);
175 opts->mnt_opts = NULL;
176 kfree(opts->mnt_opts_flags);
177 opts->mnt_opts_flags = NULL;
178 opts->num_mnt_opts = 0;
182 extern int security_init(void);
184 /* Security operations */
185 int security_binder_set_context_mgr(struct task_struct *mgr);
186 int security_binder_transaction(struct task_struct *from,
187 struct task_struct *to);
188 int security_binder_transfer_binder(struct task_struct *from,
189 struct task_struct *to);
190 int security_binder_transfer_file(struct task_struct *from,
191 struct task_struct *to, struct file *file);
192 int security_ptrace_access_check(struct task_struct *child, unsigned int mode);
193 int security_ptrace_traceme(struct task_struct *parent);
194 int security_capget(struct task_struct *target,
195 kernel_cap_t *effective,
196 kernel_cap_t *inheritable,
197 kernel_cap_t *permitted);
198 int security_capset(struct cred *new, const struct cred *old,
199 const kernel_cap_t *effective,
200 const kernel_cap_t *inheritable,
201 const kernel_cap_t *permitted);
202 int security_capable(const struct cred *cred, struct user_namespace *ns,
204 int security_capable_noaudit(const struct cred *cred, struct user_namespace *ns,
206 int security_quotactl(int cmds, int type, int id, struct super_block *sb);
207 int security_quota_on(struct dentry *dentry);
208 int security_syslog(int type);
209 int security_settime(const struct timespec *ts, const struct timezone *tz);
210 int security_vm_enough_memory_mm(struct mm_struct *mm, long pages);
211 int security_bprm_set_creds(struct linux_binprm *bprm);
212 int security_bprm_check(struct linux_binprm *bprm);
213 void security_bprm_committing_creds(struct linux_binprm *bprm);
214 void security_bprm_committed_creds(struct linux_binprm *bprm);
215 int security_bprm_secureexec(struct linux_binprm *bprm);
216 int security_sb_alloc(struct super_block *sb);
217 void security_sb_free(struct super_block *sb);
218 int security_sb_copy_data(char *orig, char *copy);
219 int security_sb_remount(struct super_block *sb, void *data);
220 int security_sb_kern_mount(struct super_block *sb, int flags, void *data);
221 int security_sb_show_options(struct seq_file *m, struct super_block *sb);
222 int security_sb_statfs(struct dentry *dentry);
223 int security_sb_mount(const char *dev_name, struct path *path,
224 const char *type, unsigned long flags, void *data);
225 int security_sb_umount(struct vfsmount *mnt, int flags);
226 int security_sb_pivotroot(struct path *old_path, struct path *new_path);
227 int security_sb_set_mnt_opts(struct super_block *sb,
228 struct security_mnt_opts *opts,
229 unsigned long kern_flags,
230 unsigned long *set_kern_flags);
231 int security_sb_clone_mnt_opts(const struct super_block *oldsb,
232 struct super_block *newsb);
233 int security_sb_parse_opts_str(char *options, struct security_mnt_opts *opts);
234 int security_dentry_init_security(struct dentry *dentry, int mode,
235 struct qstr *name, void **ctx,
238 int security_inode_alloc(struct inode *inode);
239 void security_inode_free(struct inode *inode);
240 int security_inode_init_security(struct inode *inode, struct inode *dir,
241 const struct qstr *qstr,
242 initxattrs initxattrs, void *fs_data);
243 int security_old_inode_init_security(struct inode *inode, struct inode *dir,
244 const struct qstr *qstr, const char **name,
245 void **value, size_t *len);
246 int security_inode_create(struct inode *dir, struct dentry *dentry, umode_t mode);
247 int security_inode_link(struct dentry *old_dentry, struct inode *dir,
248 struct dentry *new_dentry);
249 int security_inode_unlink(struct inode *dir, struct dentry *dentry);
250 int security_inode_symlink(struct inode *dir, struct dentry *dentry,
251 const char *old_name);
252 int security_inode_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode);
253 int security_inode_rmdir(struct inode *dir, struct dentry *dentry);
254 int security_inode_mknod(struct inode *dir, struct dentry *dentry, umode_t mode, dev_t dev);
255 int security_inode_rename(struct inode *old_dir, struct dentry *old_dentry,
256 struct inode *new_dir, struct dentry *new_dentry,
258 int security_inode_readlink(struct dentry *dentry);
259 int security_inode_follow_link(struct dentry *dentry, struct inode *inode,
261 int security_inode_permission(struct inode *inode, int mask);
262 int security_inode_setattr(struct dentry *dentry, struct iattr *attr);
263 int security_inode_getattr(const struct path *path);
264 int security_inode_setxattr(struct dentry *dentry, const char *name,
265 const void *value, size_t size, int flags);
266 void security_inode_post_setxattr(struct dentry *dentry, const char *name,
267 const void *value, size_t size, int flags);
268 int security_inode_getxattr(struct dentry *dentry, const char *name);
269 int security_inode_listxattr(struct dentry *dentry);
270 int security_inode_removexattr(struct dentry *dentry, const char *name);
271 int security_inode_need_killpriv(struct dentry *dentry);
272 int security_inode_killpriv(struct dentry *dentry);
273 int security_inode_getsecurity(struct inode *inode, const char *name, void **buffer, bool alloc);
274 int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags);
275 int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size);
276 void security_inode_getsecid(struct inode *inode, u32 *secid);
277 int security_file_permission(struct file *file, int mask);
278 int security_file_alloc(struct file *file);
279 void security_file_free(struct file *file);
280 int security_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg);
281 int security_mmap_file(struct file *file, unsigned long prot,
282 unsigned long flags);
283 int security_mmap_addr(unsigned long addr);
284 int security_file_mprotect(struct vm_area_struct *vma, unsigned long reqprot,
286 int security_file_lock(struct file *file, unsigned int cmd);
287 int security_file_fcntl(struct file *file, unsigned int cmd, unsigned long arg);
288 void security_file_set_fowner(struct file *file);
289 int security_file_send_sigiotask(struct task_struct *tsk,
290 struct fown_struct *fown, int sig);
291 int security_file_receive(struct file *file);
292 int security_file_open(struct file *file, const struct cred *cred);
293 int security_task_create(unsigned long clone_flags);
294 void security_task_free(struct task_struct *task);
295 int security_cred_alloc_blank(struct cred *cred, gfp_t gfp);
296 void security_cred_free(struct cred *cred);
297 int security_prepare_creds(struct cred *new, const struct cred *old, gfp_t gfp);
298 void security_transfer_creds(struct cred *new, const struct cred *old);
299 int security_kernel_act_as(struct cred *new, u32 secid);
300 int security_kernel_create_files_as(struct cred *new, struct inode *inode);
301 int security_kernel_fw_from_file(struct file *file, char *buf, size_t size);
302 int security_kernel_module_request(char *kmod_name);
303 int security_kernel_module_from_file(struct file *file);
304 int security_task_fix_setuid(struct cred *new, const struct cred *old,
306 int security_task_setpgid(struct task_struct *p, pid_t pgid);
307 int security_task_getpgid(struct task_struct *p);
308 int security_task_getsid(struct task_struct *p);
309 void security_task_getsecid(struct task_struct *p, u32 *secid);
310 int security_task_setnice(struct task_struct *p, int nice);
311 int security_task_setioprio(struct task_struct *p, int ioprio);
312 int security_task_getioprio(struct task_struct *p);
313 int security_task_setrlimit(struct task_struct *p, unsigned int resource,
314 struct rlimit *new_rlim);
315 int security_task_setscheduler(struct task_struct *p);
316 int security_task_getscheduler(struct task_struct *p);
317 int security_task_movememory(struct task_struct *p);
318 int security_task_kill(struct task_struct *p, struct siginfo *info,
320 int security_task_wait(struct task_struct *p);
321 int security_task_prctl(int option, unsigned long arg2, unsigned long arg3,
322 unsigned long arg4, unsigned long arg5);
323 void security_task_to_inode(struct task_struct *p, struct inode *inode);
324 int security_ipc_permission(struct kern_ipc_perm *ipcp, short flag);
325 void security_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid);
326 int security_msg_msg_alloc(struct msg_msg *msg);
327 void security_msg_msg_free(struct msg_msg *msg);
328 int security_msg_queue_alloc(struct msg_queue *msq);
329 void security_msg_queue_free(struct msg_queue *msq);
330 int security_msg_queue_associate(struct msg_queue *msq, int msqflg);
331 int security_msg_queue_msgctl(struct msg_queue *msq, int cmd);
332 int security_msg_queue_msgsnd(struct msg_queue *msq,
333 struct msg_msg *msg, int msqflg);
334 int security_msg_queue_msgrcv(struct msg_queue *msq, struct msg_msg *msg,
335 struct task_struct *target, long type, int mode);
336 int security_shm_alloc(struct shmid_kernel *shp);
337 void security_shm_free(struct shmid_kernel *shp);
338 int security_shm_associate(struct shmid_kernel *shp, int shmflg);
339 int security_shm_shmctl(struct shmid_kernel *shp, int cmd);
340 int security_shm_shmat(struct shmid_kernel *shp, char __user *shmaddr, int shmflg);
341 int security_sem_alloc(struct sem_array *sma);
342 void security_sem_free(struct sem_array *sma);
343 int security_sem_associate(struct sem_array *sma, int semflg);
344 int security_sem_semctl(struct sem_array *sma, int cmd);
345 int security_sem_semop(struct sem_array *sma, struct sembuf *sops,
346 unsigned nsops, int alter);
347 void security_d_instantiate(struct dentry *dentry, struct inode *inode);
348 int security_getprocattr(struct task_struct *p, char *name, char **value);
349 int security_setprocattr(struct task_struct *p, char *name, void *value, size_t size);
350 int security_netlink_send(struct sock *sk, struct sk_buff *skb);
351 int security_ismaclabel(const char *name);
352 int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen);
353 int security_secctx_to_secid(const char *secdata, u32 seclen, u32 *secid);
354 void security_release_secctx(char *secdata, u32 seclen);
356 void security_inode_invalidate_secctx(struct inode *inode);
357 int security_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen);
358 int security_inode_setsecctx(struct dentry *dentry, void *ctx, u32 ctxlen);
359 int security_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen);
360 #else /* CONFIG_SECURITY */
361 struct security_mnt_opts {
364 static inline void security_init_mnt_opts(struct security_mnt_opts *opts)
368 static inline void security_free_mnt_opts(struct security_mnt_opts *opts)
373 * This is the default capabilities functionality. Most of these functions
374 * are just stubbed out, but a few must call the proper capable code.
377 static inline int security_init(void)
382 static inline int security_binder_set_context_mgr(struct task_struct *mgr)
387 static inline int security_binder_transaction(struct task_struct *from,
388 struct task_struct *to)
393 static inline int security_binder_transfer_binder(struct task_struct *from,
394 struct task_struct *to)
399 static inline int security_binder_transfer_file(struct task_struct *from,
400 struct task_struct *to,
406 static inline int security_ptrace_access_check(struct task_struct *child,
409 return cap_ptrace_access_check(child, mode);
412 static inline int security_ptrace_traceme(struct task_struct *parent)
414 return cap_ptrace_traceme(parent);
417 static inline int security_capget(struct task_struct *target,
418 kernel_cap_t *effective,
419 kernel_cap_t *inheritable,
420 kernel_cap_t *permitted)
422 return cap_capget(target, effective, inheritable, permitted);
425 static inline int security_capset(struct cred *new,
426 const struct cred *old,
427 const kernel_cap_t *effective,
428 const kernel_cap_t *inheritable,
429 const kernel_cap_t *permitted)
431 return cap_capset(new, old, effective, inheritable, permitted);
434 static inline int security_capable(const struct cred *cred,
435 struct user_namespace *ns, int cap)
437 return cap_capable(cred, ns, cap, SECURITY_CAP_AUDIT);
440 static inline int security_capable_noaudit(const struct cred *cred,
441 struct user_namespace *ns, int cap) {
442 return cap_capable(cred, ns, cap, SECURITY_CAP_NOAUDIT);
445 static inline int security_quotactl(int cmds, int type, int id,
446 struct super_block *sb)
451 static inline int security_quota_on(struct dentry *dentry)
456 static inline int security_syslog(int type)
461 static inline int security_settime(const struct timespec *ts,
462 const struct timezone *tz)
464 return cap_settime(ts, tz);
467 static inline int security_vm_enough_memory_mm(struct mm_struct *mm, long pages)
469 return __vm_enough_memory(mm, pages, cap_vm_enough_memory(mm, pages));
472 static inline int security_bprm_set_creds(struct linux_binprm *bprm)
474 return cap_bprm_set_creds(bprm);
477 static inline int security_bprm_check(struct linux_binprm *bprm)
482 static inline void security_bprm_committing_creds(struct linux_binprm *bprm)
486 static inline void security_bprm_committed_creds(struct linux_binprm *bprm)
490 static inline int security_bprm_secureexec(struct linux_binprm *bprm)
492 return cap_bprm_secureexec(bprm);
495 static inline int security_sb_alloc(struct super_block *sb)
500 static inline void security_sb_free(struct super_block *sb)
503 static inline int security_sb_copy_data(char *orig, char *copy)
508 static inline int security_sb_remount(struct super_block *sb, void *data)
513 static inline int security_sb_kern_mount(struct super_block *sb, int flags, void *data)
518 static inline int security_sb_show_options(struct seq_file *m,
519 struct super_block *sb)
524 static inline int security_sb_statfs(struct dentry *dentry)
529 static inline int security_sb_mount(const char *dev_name, struct path *path,
530 const char *type, unsigned long flags,
536 static inline int security_sb_umount(struct vfsmount *mnt, int flags)
541 static inline int security_sb_pivotroot(struct path *old_path,
542 struct path *new_path)
547 static inline int security_sb_set_mnt_opts(struct super_block *sb,
548 struct security_mnt_opts *opts,
549 unsigned long kern_flags,
550 unsigned long *set_kern_flags)
555 static inline int security_sb_clone_mnt_opts(const struct super_block *oldsb,
556 struct super_block *newsb)
561 static inline int security_sb_parse_opts_str(char *options, struct security_mnt_opts *opts)
566 static inline int security_inode_alloc(struct inode *inode)
571 static inline void security_inode_free(struct inode *inode)
574 static inline int security_dentry_init_security(struct dentry *dentry,
584 static inline int security_inode_init_security(struct inode *inode,
586 const struct qstr *qstr,
587 const initxattrs xattrs,
593 static inline int security_old_inode_init_security(struct inode *inode,
595 const struct qstr *qstr,
597 void **value, size_t *len)
602 static inline int security_inode_create(struct inode *dir,
603 struct dentry *dentry,
609 static inline int security_inode_link(struct dentry *old_dentry,
611 struct dentry *new_dentry)
616 static inline int security_inode_unlink(struct inode *dir,
617 struct dentry *dentry)
622 static inline int security_inode_symlink(struct inode *dir,
623 struct dentry *dentry,
624 const char *old_name)
629 static inline int security_inode_mkdir(struct inode *dir,
630 struct dentry *dentry,
636 static inline int security_inode_rmdir(struct inode *dir,
637 struct dentry *dentry)
642 static inline int security_inode_mknod(struct inode *dir,
643 struct dentry *dentry,
649 static inline int security_inode_rename(struct inode *old_dir,
650 struct dentry *old_dentry,
651 struct inode *new_dir,
652 struct dentry *new_dentry,
658 static inline int security_inode_readlink(struct dentry *dentry)
663 static inline int security_inode_follow_link(struct dentry *dentry,
670 static inline int security_inode_permission(struct inode *inode, int mask)
675 static inline int security_inode_setattr(struct dentry *dentry,
681 static inline int security_inode_getattr(const struct path *path)
686 static inline int security_inode_setxattr(struct dentry *dentry,
687 const char *name, const void *value, size_t size, int flags)
689 return cap_inode_setxattr(dentry, name, value, size, flags);
692 static inline void security_inode_post_setxattr(struct dentry *dentry,
693 const char *name, const void *value, size_t size, int flags)
696 static inline int security_inode_getxattr(struct dentry *dentry,
702 static inline int security_inode_listxattr(struct dentry *dentry)
707 static inline int security_inode_removexattr(struct dentry *dentry,
710 return cap_inode_removexattr(dentry, name);
713 static inline int security_inode_need_killpriv(struct dentry *dentry)
715 return cap_inode_need_killpriv(dentry);
718 static inline int security_inode_killpriv(struct dentry *dentry)
720 return cap_inode_killpriv(dentry);
723 static inline int security_inode_getsecurity(struct inode *inode, const char *name, void **buffer, bool alloc)
728 static inline int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags)
733 static inline int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size)
738 static inline void security_inode_getsecid(struct inode *inode, u32 *secid)
743 static inline int security_file_permission(struct file *file, int mask)
748 static inline int security_file_alloc(struct file *file)
753 static inline void security_file_free(struct file *file)
756 static inline int security_file_ioctl(struct file *file, unsigned int cmd,
762 static inline int security_mmap_file(struct file *file, unsigned long prot,
768 static inline int security_mmap_addr(unsigned long addr)
770 return cap_mmap_addr(addr);
773 static inline int security_file_mprotect(struct vm_area_struct *vma,
774 unsigned long reqprot,
780 static inline int security_file_lock(struct file *file, unsigned int cmd)
785 static inline int security_file_fcntl(struct file *file, unsigned int cmd,
791 static inline void security_file_set_fowner(struct file *file)
796 static inline int security_file_send_sigiotask(struct task_struct *tsk,
797 struct fown_struct *fown,
803 static inline int security_file_receive(struct file *file)
808 static inline int security_file_open(struct file *file,
809 const struct cred *cred)
814 static inline int security_task_create(unsigned long clone_flags)
819 static inline void security_task_free(struct task_struct *task)
822 static inline int security_cred_alloc_blank(struct cred *cred, gfp_t gfp)
827 static inline void security_cred_free(struct cred *cred)
830 static inline int security_prepare_creds(struct cred *new,
831 const struct cred *old,
837 static inline void security_transfer_creds(struct cred *new,
838 const struct cred *old)
842 static inline int security_kernel_act_as(struct cred *cred, u32 secid)
847 static inline int security_kernel_create_files_as(struct cred *cred,
853 static inline int security_kernel_fw_from_file(struct file *file,
854 char *buf, size_t size)
859 static inline int security_kernel_module_request(char *kmod_name)
864 static inline int security_kernel_module_from_file(struct file *file)
869 static inline int security_task_fix_setuid(struct cred *new,
870 const struct cred *old,
873 return cap_task_fix_setuid(new, old, flags);
876 static inline int security_task_setpgid(struct task_struct *p, pid_t pgid)
881 static inline int security_task_getpgid(struct task_struct *p)
886 static inline int security_task_getsid(struct task_struct *p)
891 static inline void security_task_getsecid(struct task_struct *p, u32 *secid)
896 static inline int security_task_setnice(struct task_struct *p, int nice)
898 return cap_task_setnice(p, nice);
901 static inline int security_task_setioprio(struct task_struct *p, int ioprio)
903 return cap_task_setioprio(p, ioprio);
906 static inline int security_task_getioprio(struct task_struct *p)
911 static inline int security_task_setrlimit(struct task_struct *p,
912 unsigned int resource,
913 struct rlimit *new_rlim)
918 static inline int security_task_setscheduler(struct task_struct *p)
920 return cap_task_setscheduler(p);
923 static inline int security_task_getscheduler(struct task_struct *p)
928 static inline int security_task_movememory(struct task_struct *p)
933 static inline int security_task_kill(struct task_struct *p,
934 struct siginfo *info, int sig,
940 static inline int security_task_wait(struct task_struct *p)
945 static inline int security_task_prctl(int option, unsigned long arg2,
950 return cap_task_prctl(option, arg2, arg3, arg4, arg5);
953 static inline void security_task_to_inode(struct task_struct *p, struct inode *inode)
956 static inline int security_ipc_permission(struct kern_ipc_perm *ipcp,
962 static inline void security_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid)
967 static inline int security_msg_msg_alloc(struct msg_msg *msg)
972 static inline void security_msg_msg_free(struct msg_msg *msg)
975 static inline int security_msg_queue_alloc(struct msg_queue *msq)
980 static inline void security_msg_queue_free(struct msg_queue *msq)
983 static inline int security_msg_queue_associate(struct msg_queue *msq,
989 static inline int security_msg_queue_msgctl(struct msg_queue *msq, int cmd)
994 static inline int security_msg_queue_msgsnd(struct msg_queue *msq,
995 struct msg_msg *msg, int msqflg)
1000 static inline int security_msg_queue_msgrcv(struct msg_queue *msq,
1001 struct msg_msg *msg,
1002 struct task_struct *target,
1003 long type, int mode)
1008 static inline int security_shm_alloc(struct shmid_kernel *shp)
1013 static inline void security_shm_free(struct shmid_kernel *shp)
1016 static inline int security_shm_associate(struct shmid_kernel *shp,
1022 static inline int security_shm_shmctl(struct shmid_kernel *shp, int cmd)
1027 static inline int security_shm_shmat(struct shmid_kernel *shp,
1028 char __user *shmaddr, int shmflg)
1033 static inline int security_sem_alloc(struct sem_array *sma)
1038 static inline void security_sem_free(struct sem_array *sma)
1041 static inline int security_sem_associate(struct sem_array *sma, int semflg)
1046 static inline int security_sem_semctl(struct sem_array *sma, int cmd)
1051 static inline int security_sem_semop(struct sem_array *sma,
1052 struct sembuf *sops, unsigned nsops,
1058 static inline void security_d_instantiate(struct dentry *dentry, struct inode *inode)
1061 static inline int security_getprocattr(struct task_struct *p, char *name, char **value)
1066 static inline int security_setprocattr(struct task_struct *p, char *name, void *value, size_t size)
1071 static inline int security_netlink_send(struct sock *sk, struct sk_buff *skb)
1076 static inline int security_ismaclabel(const char *name)
1081 static inline int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen)
1086 static inline int security_secctx_to_secid(const char *secdata,
1093 static inline void security_release_secctx(char *secdata, u32 seclen)
1097 static inline void security_inode_invalidate_secctx(struct inode *inode)
1101 static inline int security_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen)
1105 static inline int security_inode_setsecctx(struct dentry *dentry, void *ctx, u32 ctxlen)
1109 static inline int security_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen)
1113 #endif /* CONFIG_SECURITY */
1115 #ifdef CONFIG_SECURITY_NETWORK
1117 int security_unix_stream_connect(struct sock *sock, struct sock *other, struct sock *newsk);
1118 int security_unix_may_send(struct socket *sock, struct socket *other);
1119 int security_socket_create(int family, int type, int protocol, int kern);
1120 int security_socket_post_create(struct socket *sock, int family,
1121 int type, int protocol, int kern);
1122 int security_socket_bind(struct socket *sock, struct sockaddr *address, int addrlen);
1123 int security_socket_connect(struct socket *sock, struct sockaddr *address, int addrlen);
1124 int security_socket_listen(struct socket *sock, int backlog);
1125 int security_socket_accept(struct socket *sock, struct socket *newsock);
1126 int security_socket_sendmsg(struct socket *sock, struct msghdr *msg, int size);
1127 int security_socket_recvmsg(struct socket *sock, struct msghdr *msg,
1128 int size, int flags);
1129 int security_socket_getsockname(struct socket *sock);
1130 int security_socket_getpeername(struct socket *sock);
1131 int security_socket_getsockopt(struct socket *sock, int level, int optname);
1132 int security_socket_setsockopt(struct socket *sock, int level, int optname);
1133 int security_socket_shutdown(struct socket *sock, int how);
1134 int security_sock_rcv_skb(struct sock *sk, struct sk_buff *skb);
1135 int security_socket_getpeersec_stream(struct socket *sock, char __user *optval,
1136 int __user *optlen, unsigned len);
1137 int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid);
1138 int security_sk_alloc(struct sock *sk, int family, gfp_t priority);
1139 void security_sk_free(struct sock *sk);
1140 void security_sk_clone(const struct sock *sk, struct sock *newsk);
1141 void security_sk_classify_flow(struct sock *sk, struct flowi *fl);
1142 void security_req_classify_flow(const struct request_sock *req, struct flowi *fl);
1143 void security_sock_graft(struct sock*sk, struct socket *parent);
1144 int security_inet_conn_request(struct sock *sk,
1145 struct sk_buff *skb, struct request_sock *req);
1146 void security_inet_csk_clone(struct sock *newsk,
1147 const struct request_sock *req);
1148 void security_inet_conn_established(struct sock *sk,
1149 struct sk_buff *skb);
1150 int security_secmark_relabel_packet(u32 secid);
1151 void security_secmark_refcount_inc(void);
1152 void security_secmark_refcount_dec(void);
1153 int security_tun_dev_alloc_security(void **security);
1154 void security_tun_dev_free_security(void *security);
1155 int security_tun_dev_create(void);
1156 int security_tun_dev_attach_queue(void *security);
1157 int security_tun_dev_attach(struct sock *sk, void *security);
1158 int security_tun_dev_open(void *security);
1160 #else /* CONFIG_SECURITY_NETWORK */
1161 static inline int security_unix_stream_connect(struct sock *sock,
1168 static inline int security_unix_may_send(struct socket *sock,
1169 struct socket *other)
1174 static inline int security_socket_create(int family, int type,
1175 int protocol, int kern)
1180 static inline int security_socket_post_create(struct socket *sock,
1183 int protocol, int kern)
1188 static inline int security_socket_bind(struct socket *sock,
1189 struct sockaddr *address,
1195 static inline int security_socket_connect(struct socket *sock,
1196 struct sockaddr *address,
1202 static inline int security_socket_listen(struct socket *sock, int backlog)
1207 static inline int security_socket_accept(struct socket *sock,
1208 struct socket *newsock)
1213 static inline int security_socket_sendmsg(struct socket *sock,
1214 struct msghdr *msg, int size)
1219 static inline int security_socket_recvmsg(struct socket *sock,
1220 struct msghdr *msg, int size,
1226 static inline int security_socket_getsockname(struct socket *sock)
1231 static inline int security_socket_getpeername(struct socket *sock)
1236 static inline int security_socket_getsockopt(struct socket *sock,
1237 int level, int optname)
1242 static inline int security_socket_setsockopt(struct socket *sock,
1243 int level, int optname)
1248 static inline int security_socket_shutdown(struct socket *sock, int how)
1252 static inline int security_sock_rcv_skb(struct sock *sk,
1253 struct sk_buff *skb)
1258 static inline int security_socket_getpeersec_stream(struct socket *sock, char __user *optval,
1259 int __user *optlen, unsigned len)
1261 return -ENOPROTOOPT;
1264 static inline int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid)
1266 return -ENOPROTOOPT;
1269 static inline int security_sk_alloc(struct sock *sk, int family, gfp_t priority)
1274 static inline void security_sk_free(struct sock *sk)
1278 static inline void security_sk_clone(const struct sock *sk, struct sock *newsk)
1282 static inline void security_sk_classify_flow(struct sock *sk, struct flowi *fl)
1286 static inline void security_req_classify_flow(const struct request_sock *req, struct flowi *fl)
1290 static inline void security_sock_graft(struct sock *sk, struct socket *parent)
1294 static inline int security_inet_conn_request(struct sock *sk,
1295 struct sk_buff *skb, struct request_sock *req)
1300 static inline void security_inet_csk_clone(struct sock *newsk,
1301 const struct request_sock *req)
1305 static inline void security_inet_conn_established(struct sock *sk,
1306 struct sk_buff *skb)
1310 static inline int security_secmark_relabel_packet(u32 secid)
1315 static inline void security_secmark_refcount_inc(void)
1319 static inline void security_secmark_refcount_dec(void)
1323 static inline int security_tun_dev_alloc_security(void **security)
1328 static inline void security_tun_dev_free_security(void *security)
1332 static inline int security_tun_dev_create(void)
1337 static inline int security_tun_dev_attach_queue(void *security)
1342 static inline int security_tun_dev_attach(struct sock *sk, void *security)
1347 static inline int security_tun_dev_open(void *security)
1351 #endif /* CONFIG_SECURITY_NETWORK */
1353 #ifdef CONFIG_SECURITY_NETWORK_XFRM
1355 int security_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp,
1356 struct xfrm_user_sec_ctx *sec_ctx, gfp_t gfp);
1357 int security_xfrm_policy_clone(struct xfrm_sec_ctx *old_ctx, struct xfrm_sec_ctx **new_ctxp);
1358 void security_xfrm_policy_free(struct xfrm_sec_ctx *ctx);
1359 int security_xfrm_policy_delete(struct xfrm_sec_ctx *ctx);
1360 int security_xfrm_state_alloc(struct xfrm_state *x, struct xfrm_user_sec_ctx *sec_ctx);
1361 int security_xfrm_state_alloc_acquire(struct xfrm_state *x,
1362 struct xfrm_sec_ctx *polsec, u32 secid);
1363 int security_xfrm_state_delete(struct xfrm_state *x);
1364 void security_xfrm_state_free(struct xfrm_state *x);
1365 int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir);
1366 int security_xfrm_state_pol_flow_match(struct xfrm_state *x,
1367 struct xfrm_policy *xp,
1368 const struct flowi *fl);
1369 int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid);
1370 void security_skb_classify_flow(struct sk_buff *skb, struct flowi *fl);
1372 #else /* CONFIG_SECURITY_NETWORK_XFRM */
1374 static inline int security_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp,
1375 struct xfrm_user_sec_ctx *sec_ctx,
1381 static inline int security_xfrm_policy_clone(struct xfrm_sec_ctx *old, struct xfrm_sec_ctx **new_ctxp)
1386 static inline void security_xfrm_policy_free(struct xfrm_sec_ctx *ctx)
1390 static inline int security_xfrm_policy_delete(struct xfrm_sec_ctx *ctx)
1395 static inline int security_xfrm_state_alloc(struct xfrm_state *x,
1396 struct xfrm_user_sec_ctx *sec_ctx)
1401 static inline int security_xfrm_state_alloc_acquire(struct xfrm_state *x,
1402 struct xfrm_sec_ctx *polsec, u32 secid)
1407 static inline void security_xfrm_state_free(struct xfrm_state *x)
1411 static inline int security_xfrm_state_delete(struct xfrm_state *x)
1416 static inline int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir)
1421 static inline int security_xfrm_state_pol_flow_match(struct xfrm_state *x,
1422 struct xfrm_policy *xp, const struct flowi *fl)
1427 static inline int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid)
1432 static inline void security_skb_classify_flow(struct sk_buff *skb, struct flowi *fl)
1436 #endif /* CONFIG_SECURITY_NETWORK_XFRM */
1438 #ifdef CONFIG_SECURITY_PATH
1439 int security_path_unlink(struct path *dir, struct dentry *dentry);
1440 int security_path_mkdir(struct path *dir, struct dentry *dentry, umode_t mode);
1441 int security_path_rmdir(struct path *dir, struct dentry *dentry);
1442 int security_path_mknod(struct path *dir, struct dentry *dentry, umode_t mode,
1444 int security_path_truncate(struct path *path);
1445 int security_path_symlink(struct path *dir, struct dentry *dentry,
1446 const char *old_name);
1447 int security_path_link(struct dentry *old_dentry, struct path *new_dir,
1448 struct dentry *new_dentry);
1449 int security_path_rename(struct path *old_dir, struct dentry *old_dentry,
1450 struct path *new_dir, struct dentry *new_dentry,
1451 unsigned int flags);
1452 int security_path_chmod(struct path *path, umode_t mode);
1453 int security_path_chown(struct path *path, kuid_t uid, kgid_t gid);
1454 int security_path_chroot(struct path *path);
1455 #else /* CONFIG_SECURITY_PATH */
1456 static inline int security_path_unlink(struct path *dir, struct dentry *dentry)
1461 static inline int security_path_mkdir(struct path *dir, struct dentry *dentry,
1467 static inline int security_path_rmdir(struct path *dir, struct dentry *dentry)
1472 static inline int security_path_mknod(struct path *dir, struct dentry *dentry,
1473 umode_t mode, unsigned int dev)
1478 static inline int security_path_truncate(struct path *path)
1483 static inline int security_path_symlink(struct path *dir, struct dentry *dentry,
1484 const char *old_name)
1489 static inline int security_path_link(struct dentry *old_dentry,
1490 struct path *new_dir,
1491 struct dentry *new_dentry)
1496 static inline int security_path_rename(struct path *old_dir,
1497 struct dentry *old_dentry,
1498 struct path *new_dir,
1499 struct dentry *new_dentry,
1505 static inline int security_path_chmod(struct path *path, umode_t mode)
1510 static inline int security_path_chown(struct path *path, kuid_t uid, kgid_t gid)
1515 static inline int security_path_chroot(struct path *path)
1519 #endif /* CONFIG_SECURITY_PATH */
1522 #ifdef CONFIG_SECURITY
1524 int security_key_alloc(struct key *key, const struct cred *cred, unsigned long flags);
1525 void security_key_free(struct key *key);
1526 int security_key_permission(key_ref_t key_ref,
1527 const struct cred *cred, unsigned perm);
1528 int security_key_getsecurity(struct key *key, char **_buffer);
1532 static inline int security_key_alloc(struct key *key,
1533 const struct cred *cred,
1534 unsigned long flags)
1539 static inline void security_key_free(struct key *key)
1543 static inline int security_key_permission(key_ref_t key_ref,
1544 const struct cred *cred,
1550 static inline int security_key_getsecurity(struct key *key, char **_buffer)
1557 #endif /* CONFIG_KEYS */
1560 #ifdef CONFIG_SECURITY
1561 int security_audit_rule_init(u32 field, u32 op, char *rulestr, void **lsmrule);
1562 int security_audit_rule_known(struct audit_krule *krule);
1563 int security_audit_rule_match(u32 secid, u32 field, u32 op, void *lsmrule,
1564 struct audit_context *actx);
1565 void security_audit_rule_free(void *lsmrule);
1569 static inline int security_audit_rule_init(u32 field, u32 op, char *rulestr,
1575 static inline int security_audit_rule_known(struct audit_krule *krule)
1580 static inline int security_audit_rule_match(u32 secid, u32 field, u32 op,
1581 void *lsmrule, struct audit_context *actx)
1586 static inline void security_audit_rule_free(void *lsmrule)
1589 #endif /* CONFIG_SECURITY */
1590 #endif /* CONFIG_AUDIT */
1592 #ifdef CONFIG_SECURITYFS
1594 extern struct dentry *securityfs_create_file(const char *name, umode_t mode,
1595 struct dentry *parent, void *data,
1596 const struct file_operations *fops);
1597 extern struct dentry *securityfs_create_dir(const char *name, struct dentry *parent);
1598 extern void securityfs_remove(struct dentry *dentry);
1600 #else /* CONFIG_SECURITYFS */
1602 static inline struct dentry *securityfs_create_dir(const char *name,
1603 struct dentry *parent)
1605 return ERR_PTR(-ENODEV);
1608 static inline struct dentry *securityfs_create_file(const char *name,
1610 struct dentry *parent,
1612 const struct file_operations *fops)
1614 return ERR_PTR(-ENODEV);
1617 static inline void securityfs_remove(struct dentry *dentry)
1622 #ifdef CONFIG_SECURITY
1624 static inline char *alloc_secdata(void)
1626 return (char *)get_zeroed_page(GFP_KERNEL);
1629 static inline void free_secdata(void *secdata)
1631 free_page((unsigned long)secdata);
1636 static inline char *alloc_secdata(void)
1641 static inline void free_secdata(void *secdata)
1643 #endif /* CONFIG_SECURITY */
1645 #endif /* ! __LINUX_SECURITY_H */