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(const 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(const 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 int security_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen);
357 int security_inode_setsecctx(struct dentry *dentry, void *ctx, u32 ctxlen);
358 int security_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen);
359 #else /* CONFIG_SECURITY */
360 struct security_mnt_opts {
363 static inline void security_init_mnt_opts(struct security_mnt_opts *opts)
367 static inline void security_free_mnt_opts(struct security_mnt_opts *opts)
372 * This is the default capabilities functionality. Most of these functions
373 * are just stubbed out, but a few must call the proper capable code.
376 static inline int security_init(void)
381 static inline int security_binder_set_context_mgr(struct task_struct *mgr)
386 static inline int security_binder_transaction(struct task_struct *from,
387 struct task_struct *to)
392 static inline int security_binder_transfer_binder(struct task_struct *from,
393 struct task_struct *to)
398 static inline int security_binder_transfer_file(struct task_struct *from,
399 struct task_struct *to,
405 static inline int security_ptrace_access_check(struct task_struct *child,
408 return cap_ptrace_access_check(child, mode);
411 static inline int security_ptrace_traceme(struct task_struct *parent)
413 return cap_ptrace_traceme(parent);
416 static inline int security_capget(struct task_struct *target,
417 kernel_cap_t *effective,
418 kernel_cap_t *inheritable,
419 kernel_cap_t *permitted)
421 return cap_capget(target, effective, inheritable, permitted);
424 static inline int security_capset(struct cred *new,
425 const struct cred *old,
426 const kernel_cap_t *effective,
427 const kernel_cap_t *inheritable,
428 const kernel_cap_t *permitted)
430 return cap_capset(new, old, effective, inheritable, permitted);
433 static inline int security_capable(const struct cred *cred,
434 struct user_namespace *ns, int cap)
436 return cap_capable(cred, ns, cap, SECURITY_CAP_AUDIT);
439 static inline int security_capable_noaudit(const struct cred *cred,
440 struct user_namespace *ns, int cap) {
441 return cap_capable(cred, ns, cap, SECURITY_CAP_NOAUDIT);
444 static inline int security_quotactl(int cmds, int type, int id,
445 struct super_block *sb)
450 static inline int security_quota_on(struct dentry *dentry)
455 static inline int security_syslog(int type)
460 static inline int security_settime(const struct timespec *ts,
461 const struct timezone *tz)
463 return cap_settime(ts, tz);
466 static inline int security_vm_enough_memory_mm(struct mm_struct *mm, long pages)
468 return __vm_enough_memory(mm, pages, cap_vm_enough_memory(mm, pages));
471 static inline int security_bprm_set_creds(struct linux_binprm *bprm)
473 return cap_bprm_set_creds(bprm);
476 static inline int security_bprm_check(struct linux_binprm *bprm)
481 static inline void security_bprm_committing_creds(struct linux_binprm *bprm)
485 static inline void security_bprm_committed_creds(struct linux_binprm *bprm)
489 static inline int security_bprm_secureexec(struct linux_binprm *bprm)
491 return cap_bprm_secureexec(bprm);
494 static inline int security_sb_alloc(struct super_block *sb)
499 static inline void security_sb_free(struct super_block *sb)
502 static inline int security_sb_copy_data(char *orig, char *copy)
507 static inline int security_sb_remount(struct super_block *sb, void *data)
512 static inline int security_sb_kern_mount(struct super_block *sb, int flags, void *data)
517 static inline int security_sb_show_options(struct seq_file *m,
518 struct super_block *sb)
523 static inline int security_sb_statfs(struct dentry *dentry)
528 static inline int security_sb_mount(const char *dev_name, struct path *path,
529 const char *type, unsigned long flags,
535 static inline int security_sb_umount(struct vfsmount *mnt, int flags)
540 static inline int security_sb_pivotroot(struct path *old_path,
541 struct path *new_path)
546 static inline int security_sb_set_mnt_opts(struct super_block *sb,
547 struct security_mnt_opts *opts,
548 unsigned long kern_flags,
549 unsigned long *set_kern_flags)
554 static inline int security_sb_clone_mnt_opts(const struct super_block *oldsb,
555 struct super_block *newsb)
560 static inline int security_sb_parse_opts_str(char *options, struct security_mnt_opts *opts)
565 static inline int security_inode_alloc(struct inode *inode)
570 static inline void security_inode_free(struct inode *inode)
573 static inline int security_dentry_init_security(struct dentry *dentry,
583 static inline int security_inode_init_security(struct inode *inode,
585 const struct qstr *qstr,
586 const initxattrs xattrs,
592 static inline int security_old_inode_init_security(struct inode *inode,
594 const struct qstr *qstr,
596 void **value, size_t *len)
601 static inline int security_inode_create(struct inode *dir,
602 struct dentry *dentry,
608 static inline int security_inode_link(struct dentry *old_dentry,
610 struct dentry *new_dentry)
615 static inline int security_inode_unlink(struct inode *dir,
616 struct dentry *dentry)
621 static inline int security_inode_symlink(struct inode *dir,
622 struct dentry *dentry,
623 const char *old_name)
628 static inline int security_inode_mkdir(struct inode *dir,
629 struct dentry *dentry,
635 static inline int security_inode_rmdir(struct inode *dir,
636 struct dentry *dentry)
641 static inline int security_inode_mknod(struct inode *dir,
642 struct dentry *dentry,
648 static inline int security_inode_rename(struct inode *old_dir,
649 struct dentry *old_dentry,
650 struct inode *new_dir,
651 struct dentry *new_dentry,
657 static inline int security_inode_readlink(struct dentry *dentry)
662 static inline int security_inode_follow_link(struct dentry *dentry,
669 static inline int security_inode_permission(struct inode *inode, int mask)
674 static inline int security_inode_setattr(struct dentry *dentry,
680 static inline int security_inode_getattr(const struct path *path)
685 static inline int security_inode_setxattr(struct dentry *dentry,
686 const char *name, const void *value, size_t size, int flags)
688 return cap_inode_setxattr(dentry, name, value, size, flags);
691 static inline void security_inode_post_setxattr(struct dentry *dentry,
692 const char *name, const void *value, size_t size, int flags)
695 static inline int security_inode_getxattr(struct dentry *dentry,
701 static inline int security_inode_listxattr(struct dentry *dentry)
706 static inline int security_inode_removexattr(struct dentry *dentry,
709 return cap_inode_removexattr(dentry, name);
712 static inline int security_inode_need_killpriv(struct dentry *dentry)
714 return cap_inode_need_killpriv(dentry);
717 static inline int security_inode_killpriv(struct dentry *dentry)
719 return cap_inode_killpriv(dentry);
722 static inline int security_inode_getsecurity(const struct inode *inode, const char *name, void **buffer, bool alloc)
727 static inline int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags)
732 static inline int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size)
737 static inline void security_inode_getsecid(const struct inode *inode, u32 *secid)
742 static inline int security_file_permission(struct file *file, int mask)
747 static inline int security_file_alloc(struct file *file)
752 static inline void security_file_free(struct file *file)
755 static inline int security_file_ioctl(struct file *file, unsigned int cmd,
761 static inline int security_mmap_file(struct file *file, unsigned long prot,
767 static inline int security_mmap_addr(unsigned long addr)
769 return cap_mmap_addr(addr);
772 static inline int security_file_mprotect(struct vm_area_struct *vma,
773 unsigned long reqprot,
779 static inline int security_file_lock(struct file *file, unsigned int cmd)
784 static inline int security_file_fcntl(struct file *file, unsigned int cmd,
790 static inline void security_file_set_fowner(struct file *file)
795 static inline int security_file_send_sigiotask(struct task_struct *tsk,
796 struct fown_struct *fown,
802 static inline int security_file_receive(struct file *file)
807 static inline int security_file_open(struct file *file,
808 const struct cred *cred)
813 static inline int security_task_create(unsigned long clone_flags)
818 static inline void security_task_free(struct task_struct *task)
821 static inline int security_cred_alloc_blank(struct cred *cred, gfp_t gfp)
826 static inline void security_cred_free(struct cred *cred)
829 static inline int security_prepare_creds(struct cred *new,
830 const struct cred *old,
836 static inline void security_transfer_creds(struct cred *new,
837 const struct cred *old)
841 static inline int security_kernel_act_as(struct cred *cred, u32 secid)
846 static inline int security_kernel_create_files_as(struct cred *cred,
852 static inline int security_kernel_fw_from_file(struct file *file,
853 char *buf, size_t size)
858 static inline int security_kernel_module_request(char *kmod_name)
863 static inline int security_kernel_module_from_file(struct file *file)
868 static inline int security_task_fix_setuid(struct cred *new,
869 const struct cred *old,
872 return cap_task_fix_setuid(new, old, flags);
875 static inline int security_task_setpgid(struct task_struct *p, pid_t pgid)
880 static inline int security_task_getpgid(struct task_struct *p)
885 static inline int security_task_getsid(struct task_struct *p)
890 static inline void security_task_getsecid(struct task_struct *p, u32 *secid)
895 static inline int security_task_setnice(struct task_struct *p, int nice)
897 return cap_task_setnice(p, nice);
900 static inline int security_task_setioprio(struct task_struct *p, int ioprio)
902 return cap_task_setioprio(p, ioprio);
905 static inline int security_task_getioprio(struct task_struct *p)
910 static inline int security_task_setrlimit(struct task_struct *p,
911 unsigned int resource,
912 struct rlimit *new_rlim)
917 static inline int security_task_setscheduler(struct task_struct *p)
919 return cap_task_setscheduler(p);
922 static inline int security_task_getscheduler(struct task_struct *p)
927 static inline int security_task_movememory(struct task_struct *p)
932 static inline int security_task_kill(struct task_struct *p,
933 struct siginfo *info, int sig,
939 static inline int security_task_wait(struct task_struct *p)
944 static inline int security_task_prctl(int option, unsigned long arg2,
949 return cap_task_prctl(option, arg2, arg3, arg4, arg5);
952 static inline void security_task_to_inode(struct task_struct *p, struct inode *inode)
955 static inline int security_ipc_permission(struct kern_ipc_perm *ipcp,
961 static inline void security_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid)
966 static inline int security_msg_msg_alloc(struct msg_msg *msg)
971 static inline void security_msg_msg_free(struct msg_msg *msg)
974 static inline int security_msg_queue_alloc(struct msg_queue *msq)
979 static inline void security_msg_queue_free(struct msg_queue *msq)
982 static inline int security_msg_queue_associate(struct msg_queue *msq,
988 static inline int security_msg_queue_msgctl(struct msg_queue *msq, int cmd)
993 static inline int security_msg_queue_msgsnd(struct msg_queue *msq,
994 struct msg_msg *msg, int msqflg)
999 static inline int security_msg_queue_msgrcv(struct msg_queue *msq,
1000 struct msg_msg *msg,
1001 struct task_struct *target,
1002 long type, int mode)
1007 static inline int security_shm_alloc(struct shmid_kernel *shp)
1012 static inline void security_shm_free(struct shmid_kernel *shp)
1015 static inline int security_shm_associate(struct shmid_kernel *shp,
1021 static inline int security_shm_shmctl(struct shmid_kernel *shp, int cmd)
1026 static inline int security_shm_shmat(struct shmid_kernel *shp,
1027 char __user *shmaddr, int shmflg)
1032 static inline int security_sem_alloc(struct sem_array *sma)
1037 static inline void security_sem_free(struct sem_array *sma)
1040 static inline int security_sem_associate(struct sem_array *sma, int semflg)
1045 static inline int security_sem_semctl(struct sem_array *sma, int cmd)
1050 static inline int security_sem_semop(struct sem_array *sma,
1051 struct sembuf *sops, unsigned nsops,
1057 static inline void security_d_instantiate(struct dentry *dentry, struct inode *inode)
1060 static inline int security_getprocattr(struct task_struct *p, char *name, char **value)
1065 static inline int security_setprocattr(struct task_struct *p, char *name, void *value, size_t size)
1070 static inline int security_netlink_send(struct sock *sk, struct sk_buff *skb)
1075 static inline int security_ismaclabel(const char *name)
1080 static inline int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen)
1085 static inline int security_secctx_to_secid(const char *secdata,
1092 static inline void security_release_secctx(char *secdata, u32 seclen)
1096 static inline int security_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen)
1100 static inline int security_inode_setsecctx(struct dentry *dentry, void *ctx, u32 ctxlen)
1104 static inline int security_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen)
1108 #endif /* CONFIG_SECURITY */
1110 #ifdef CONFIG_SECURITY_NETWORK
1112 int security_unix_stream_connect(struct sock *sock, struct sock *other, struct sock *newsk);
1113 int security_unix_may_send(struct socket *sock, struct socket *other);
1114 int security_socket_create(int family, int type, int protocol, int kern);
1115 int security_socket_post_create(struct socket *sock, int family,
1116 int type, int protocol, int kern);
1117 int security_socket_bind(struct socket *sock, struct sockaddr *address, int addrlen);
1118 int security_socket_connect(struct socket *sock, struct sockaddr *address, int addrlen);
1119 int security_socket_listen(struct socket *sock, int backlog);
1120 int security_socket_accept(struct socket *sock, struct socket *newsock);
1121 int security_socket_sendmsg(struct socket *sock, struct msghdr *msg, int size);
1122 int security_socket_recvmsg(struct socket *sock, struct msghdr *msg,
1123 int size, int flags);
1124 int security_socket_getsockname(struct socket *sock);
1125 int security_socket_getpeername(struct socket *sock);
1126 int security_socket_getsockopt(struct socket *sock, int level, int optname);
1127 int security_socket_setsockopt(struct socket *sock, int level, int optname);
1128 int security_socket_shutdown(struct socket *sock, int how);
1129 int security_sock_rcv_skb(struct sock *sk, struct sk_buff *skb);
1130 int security_socket_getpeersec_stream(struct socket *sock, char __user *optval,
1131 int __user *optlen, unsigned len);
1132 int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid);
1133 int security_sk_alloc(struct sock *sk, int family, gfp_t priority);
1134 void security_sk_free(struct sock *sk);
1135 void security_sk_clone(const struct sock *sk, struct sock *newsk);
1136 void security_sk_classify_flow(struct sock *sk, struct flowi *fl);
1137 void security_req_classify_flow(const struct request_sock *req, struct flowi *fl);
1138 void security_sock_graft(struct sock*sk, struct socket *parent);
1139 int security_inet_conn_request(struct sock *sk,
1140 struct sk_buff *skb, struct request_sock *req);
1141 void security_inet_csk_clone(struct sock *newsk,
1142 const struct request_sock *req);
1143 void security_inet_conn_established(struct sock *sk,
1144 struct sk_buff *skb);
1145 int security_secmark_relabel_packet(u32 secid);
1146 void security_secmark_refcount_inc(void);
1147 void security_secmark_refcount_dec(void);
1148 int security_tun_dev_alloc_security(void **security);
1149 void security_tun_dev_free_security(void *security);
1150 int security_tun_dev_create(void);
1151 int security_tun_dev_attach_queue(void *security);
1152 int security_tun_dev_attach(struct sock *sk, void *security);
1153 int security_tun_dev_open(void *security);
1155 #else /* CONFIG_SECURITY_NETWORK */
1156 static inline int security_unix_stream_connect(struct sock *sock,
1163 static inline int security_unix_may_send(struct socket *sock,
1164 struct socket *other)
1169 static inline int security_socket_create(int family, int type,
1170 int protocol, int kern)
1175 static inline int security_socket_post_create(struct socket *sock,
1178 int protocol, int kern)
1183 static inline int security_socket_bind(struct socket *sock,
1184 struct sockaddr *address,
1190 static inline int security_socket_connect(struct socket *sock,
1191 struct sockaddr *address,
1197 static inline int security_socket_listen(struct socket *sock, int backlog)
1202 static inline int security_socket_accept(struct socket *sock,
1203 struct socket *newsock)
1208 static inline int security_socket_sendmsg(struct socket *sock,
1209 struct msghdr *msg, int size)
1214 static inline int security_socket_recvmsg(struct socket *sock,
1215 struct msghdr *msg, int size,
1221 static inline int security_socket_getsockname(struct socket *sock)
1226 static inline int security_socket_getpeername(struct socket *sock)
1231 static inline int security_socket_getsockopt(struct socket *sock,
1232 int level, int optname)
1237 static inline int security_socket_setsockopt(struct socket *sock,
1238 int level, int optname)
1243 static inline int security_socket_shutdown(struct socket *sock, int how)
1247 static inline int security_sock_rcv_skb(struct sock *sk,
1248 struct sk_buff *skb)
1253 static inline int security_socket_getpeersec_stream(struct socket *sock, char __user *optval,
1254 int __user *optlen, unsigned len)
1256 return -ENOPROTOOPT;
1259 static inline int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid)
1261 return -ENOPROTOOPT;
1264 static inline int security_sk_alloc(struct sock *sk, int family, gfp_t priority)
1269 static inline void security_sk_free(struct sock *sk)
1273 static inline void security_sk_clone(const struct sock *sk, struct sock *newsk)
1277 static inline void security_sk_classify_flow(struct sock *sk, struct flowi *fl)
1281 static inline void security_req_classify_flow(const struct request_sock *req, struct flowi *fl)
1285 static inline void security_sock_graft(struct sock *sk, struct socket *parent)
1289 static inline int security_inet_conn_request(struct sock *sk,
1290 struct sk_buff *skb, struct request_sock *req)
1295 static inline void security_inet_csk_clone(struct sock *newsk,
1296 const struct request_sock *req)
1300 static inline void security_inet_conn_established(struct sock *sk,
1301 struct sk_buff *skb)
1305 static inline int security_secmark_relabel_packet(u32 secid)
1310 static inline void security_secmark_refcount_inc(void)
1314 static inline void security_secmark_refcount_dec(void)
1318 static inline int security_tun_dev_alloc_security(void **security)
1323 static inline void security_tun_dev_free_security(void *security)
1327 static inline int security_tun_dev_create(void)
1332 static inline int security_tun_dev_attach_queue(void *security)
1337 static inline int security_tun_dev_attach(struct sock *sk, void *security)
1342 static inline int security_tun_dev_open(void *security)
1346 #endif /* CONFIG_SECURITY_NETWORK */
1348 #ifdef CONFIG_SECURITY_NETWORK_XFRM
1350 int security_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp,
1351 struct xfrm_user_sec_ctx *sec_ctx, gfp_t gfp);
1352 int security_xfrm_policy_clone(struct xfrm_sec_ctx *old_ctx, struct xfrm_sec_ctx **new_ctxp);
1353 void security_xfrm_policy_free(struct xfrm_sec_ctx *ctx);
1354 int security_xfrm_policy_delete(struct xfrm_sec_ctx *ctx);
1355 int security_xfrm_state_alloc(struct xfrm_state *x, struct xfrm_user_sec_ctx *sec_ctx);
1356 int security_xfrm_state_alloc_acquire(struct xfrm_state *x,
1357 struct xfrm_sec_ctx *polsec, u32 secid);
1358 int security_xfrm_state_delete(struct xfrm_state *x);
1359 void security_xfrm_state_free(struct xfrm_state *x);
1360 int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir);
1361 int security_xfrm_state_pol_flow_match(struct xfrm_state *x,
1362 struct xfrm_policy *xp,
1363 const struct flowi *fl);
1364 int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid);
1365 void security_skb_classify_flow(struct sk_buff *skb, struct flowi *fl);
1367 #else /* CONFIG_SECURITY_NETWORK_XFRM */
1369 static inline int security_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp,
1370 struct xfrm_user_sec_ctx *sec_ctx,
1376 static inline int security_xfrm_policy_clone(struct xfrm_sec_ctx *old, struct xfrm_sec_ctx **new_ctxp)
1381 static inline void security_xfrm_policy_free(struct xfrm_sec_ctx *ctx)
1385 static inline int security_xfrm_policy_delete(struct xfrm_sec_ctx *ctx)
1390 static inline int security_xfrm_state_alloc(struct xfrm_state *x,
1391 struct xfrm_user_sec_ctx *sec_ctx)
1396 static inline int security_xfrm_state_alloc_acquire(struct xfrm_state *x,
1397 struct xfrm_sec_ctx *polsec, u32 secid)
1402 static inline void security_xfrm_state_free(struct xfrm_state *x)
1406 static inline int security_xfrm_state_delete(struct xfrm_state *x)
1411 static inline int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir)
1416 static inline int security_xfrm_state_pol_flow_match(struct xfrm_state *x,
1417 struct xfrm_policy *xp, const struct flowi *fl)
1422 static inline int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid)
1427 static inline void security_skb_classify_flow(struct sk_buff *skb, struct flowi *fl)
1431 #endif /* CONFIG_SECURITY_NETWORK_XFRM */
1433 #ifdef CONFIG_SECURITY_PATH
1434 int security_path_unlink(struct path *dir, struct dentry *dentry);
1435 int security_path_mkdir(struct path *dir, struct dentry *dentry, umode_t mode);
1436 int security_path_rmdir(struct path *dir, struct dentry *dentry);
1437 int security_path_mknod(struct path *dir, struct dentry *dentry, umode_t mode,
1439 int security_path_truncate(struct path *path);
1440 int security_path_symlink(struct path *dir, struct dentry *dentry,
1441 const char *old_name);
1442 int security_path_link(struct dentry *old_dentry, struct path *new_dir,
1443 struct dentry *new_dentry);
1444 int security_path_rename(struct path *old_dir, struct dentry *old_dentry,
1445 struct path *new_dir, struct dentry *new_dentry,
1446 unsigned int flags);
1447 int security_path_chmod(struct path *path, umode_t mode);
1448 int security_path_chown(struct path *path, kuid_t uid, kgid_t gid);
1449 int security_path_chroot(struct path *path);
1450 #else /* CONFIG_SECURITY_PATH */
1451 static inline int security_path_unlink(struct path *dir, struct dentry *dentry)
1456 static inline int security_path_mkdir(struct path *dir, struct dentry *dentry,
1462 static inline int security_path_rmdir(struct path *dir, struct dentry *dentry)
1467 static inline int security_path_mknod(struct path *dir, struct dentry *dentry,
1468 umode_t mode, unsigned int dev)
1473 static inline int security_path_truncate(struct path *path)
1478 static inline int security_path_symlink(struct path *dir, struct dentry *dentry,
1479 const char *old_name)
1484 static inline int security_path_link(struct dentry *old_dentry,
1485 struct path *new_dir,
1486 struct dentry *new_dentry)
1491 static inline int security_path_rename(struct path *old_dir,
1492 struct dentry *old_dentry,
1493 struct path *new_dir,
1494 struct dentry *new_dentry,
1500 static inline int security_path_chmod(struct path *path, umode_t mode)
1505 static inline int security_path_chown(struct path *path, kuid_t uid, kgid_t gid)
1510 static inline int security_path_chroot(struct path *path)
1514 #endif /* CONFIG_SECURITY_PATH */
1517 #ifdef CONFIG_SECURITY
1519 int security_key_alloc(struct key *key, const struct cred *cred, unsigned long flags);
1520 void security_key_free(struct key *key);
1521 int security_key_permission(key_ref_t key_ref,
1522 const struct cred *cred, unsigned perm);
1523 int security_key_getsecurity(struct key *key, char **_buffer);
1527 static inline int security_key_alloc(struct key *key,
1528 const struct cred *cred,
1529 unsigned long flags)
1534 static inline void security_key_free(struct key *key)
1538 static inline int security_key_permission(key_ref_t key_ref,
1539 const struct cred *cred,
1545 static inline int security_key_getsecurity(struct key *key, char **_buffer)
1552 #endif /* CONFIG_KEYS */
1555 #ifdef CONFIG_SECURITY
1556 int security_audit_rule_init(u32 field, u32 op, char *rulestr, void **lsmrule);
1557 int security_audit_rule_known(struct audit_krule *krule);
1558 int security_audit_rule_match(u32 secid, u32 field, u32 op, void *lsmrule,
1559 struct audit_context *actx);
1560 void security_audit_rule_free(void *lsmrule);
1564 static inline int security_audit_rule_init(u32 field, u32 op, char *rulestr,
1570 static inline int security_audit_rule_known(struct audit_krule *krule)
1575 static inline int security_audit_rule_match(u32 secid, u32 field, u32 op,
1576 void *lsmrule, struct audit_context *actx)
1581 static inline void security_audit_rule_free(void *lsmrule)
1584 #endif /* CONFIG_SECURITY */
1585 #endif /* CONFIG_AUDIT */
1587 #ifdef CONFIG_SECURITYFS
1589 extern struct dentry *securityfs_create_file(const char *name, umode_t mode,
1590 struct dentry *parent, void *data,
1591 const struct file_operations *fops);
1592 extern struct dentry *securityfs_create_dir(const char *name, struct dentry *parent);
1593 extern void securityfs_remove(struct dentry *dentry);
1595 #else /* CONFIG_SECURITYFS */
1597 static inline struct dentry *securityfs_create_dir(const char *name,
1598 struct dentry *parent)
1600 return ERR_PTR(-ENODEV);
1603 static inline struct dentry *securityfs_create_file(const char *name,
1605 struct dentry *parent,
1607 const struct file_operations *fops)
1609 return ERR_PTR(-ENODEV);
1612 static inline void securityfs_remove(struct dentry *dentry)
1617 #ifdef CONFIG_SECURITY
1619 static inline char *alloc_secdata(void)
1621 return (char *)get_zeroed_page(GFP_KERNEL);
1624 static inline void free_secdata(void *secdata)
1626 free_page((unsigned long)secdata);
1631 static inline char *alloc_secdata(void)
1636 static inline void free_secdata(void *secdata)
1638 #endif /* CONFIG_SECURITY */
1640 #endif /* ! __LINUX_SECURITY_H */