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>
28 #include <linux/slab.h>
29 #include <linux/err.h>
30 #include <linux/string.h>
51 struct file_operations;
59 /* If capable should audit the security request */
60 #define SECURITY_CAP_NOAUDIT 0
61 #define SECURITY_CAP_AUDIT 1
63 /* LSM Agnostic defines for sb_set_mnt_opts */
64 #define SECURITY_LSM_NATIVE_LABELS 1
68 struct user_namespace;
71 /* These functions are in security/commoncap.c */
72 extern int cap_capable(const struct cred *cred, struct user_namespace *ns,
74 extern int cap_settime(const struct timespec64 *ts, const struct timezone *tz);
75 extern int cap_ptrace_access_check(struct task_struct *child, unsigned int mode);
76 extern int cap_ptrace_traceme(struct task_struct *parent);
77 extern int cap_capget(struct task_struct *target, kernel_cap_t *effective, kernel_cap_t *inheritable, kernel_cap_t *permitted);
78 extern int cap_capset(struct cred *new, const struct cred *old,
79 const kernel_cap_t *effective,
80 const kernel_cap_t *inheritable,
81 const kernel_cap_t *permitted);
82 extern int cap_bprm_set_creds(struct linux_binprm *bprm);
83 extern int cap_bprm_secureexec(struct linux_binprm *bprm);
84 extern int cap_inode_setxattr(struct dentry *dentry, const char *name,
85 const void *value, size_t size, int flags);
86 extern int cap_inode_removexattr(struct dentry *dentry, const char *name);
87 extern int cap_inode_need_killpriv(struct dentry *dentry);
88 extern int cap_inode_killpriv(struct dentry *dentry);
89 extern int cap_mmap_addr(unsigned long addr);
90 extern int cap_mmap_file(struct file *file, unsigned long reqprot,
91 unsigned long prot, unsigned long flags);
92 extern int cap_task_fix_setuid(struct cred *new, const struct cred *old, int flags);
93 extern int cap_task_prctl(int option, unsigned long arg2, unsigned long arg3,
94 unsigned long arg4, unsigned long arg5);
95 extern int cap_task_setscheduler(struct task_struct *p);
96 extern int cap_task_setioprio(struct task_struct *p, int ioprio);
97 extern int cap_task_setnice(struct task_struct *p, int nice);
98 extern int cap_vm_enough_memory(struct mm_struct *mm, long pages);
107 struct xfrm_selector;
110 struct xfrm_user_sec_ctx;
114 extern unsigned long mmap_min_addr;
115 extern unsigned long dac_mmap_min_addr;
117 #define mmap_min_addr 0UL
118 #define dac_mmap_min_addr 0UL
122 * Values used in the task_security_ops calls
124 /* setuid or setgid, id0 == uid or gid */
125 #define LSM_SETID_ID 1
127 /* setreuid or setregid, id0 == real, id1 == eff */
128 #define LSM_SETID_RE 2
130 /* setresuid or setresgid, id0 == real, id1 == eff, uid2 == saved */
131 #define LSM_SETID_RES 4
133 /* setfsuid or setfsgid, id0 == fsuid or fsgid */
134 #define LSM_SETID_FS 8
136 /* Flags for security_task_prlimit(). */
137 #define LSM_PRLIMIT_READ 1
138 #define LSM_PRLIMIT_WRITE 2
140 /* forward declares to avoid warnings */
144 /* bprm->unsafe reasons */
145 #define LSM_UNSAFE_SHARE 1
146 #define LSM_UNSAFE_PTRACE 2
147 #define LSM_UNSAFE_NO_NEW_PRIVS 4
150 extern int mmap_min_addr_handler(struct ctl_table *table, int write,
151 void __user *buffer, size_t *lenp, loff_t *ppos);
154 /* security_inode_init_security callback function to write xattrs */
155 typedef int (*initxattrs) (struct inode *inode,
156 const struct xattr *xattr_array, void *fs_data);
158 #ifdef CONFIG_SECURITY
160 struct security_mnt_opts {
166 static inline void security_init_mnt_opts(struct security_mnt_opts *opts)
168 opts->mnt_opts = NULL;
169 opts->mnt_opts_flags = NULL;
170 opts->num_mnt_opts = 0;
173 static inline void security_free_mnt_opts(struct security_mnt_opts *opts)
177 for (i = 0; i < opts->num_mnt_opts; i++)
178 kfree(opts->mnt_opts[i]);
179 kfree(opts->mnt_opts);
180 opts->mnt_opts = NULL;
181 kfree(opts->mnt_opts_flags);
182 opts->mnt_opts_flags = NULL;
183 opts->num_mnt_opts = 0;
187 extern int security_init(void);
189 /* Security operations */
190 int security_binder_set_context_mgr(struct task_struct *mgr);
191 int security_binder_transaction(struct task_struct *from,
192 struct task_struct *to);
193 int security_binder_transfer_binder(struct task_struct *from,
194 struct task_struct *to);
195 int security_binder_transfer_file(struct task_struct *from,
196 struct task_struct *to, struct file *file);
197 int security_ptrace_access_check(struct task_struct *child, unsigned int mode);
198 int security_ptrace_traceme(struct task_struct *parent);
199 int security_capget(struct task_struct *target,
200 kernel_cap_t *effective,
201 kernel_cap_t *inheritable,
202 kernel_cap_t *permitted);
203 int security_capset(struct cred *new, const struct cred *old,
204 const kernel_cap_t *effective,
205 const kernel_cap_t *inheritable,
206 const kernel_cap_t *permitted);
207 int security_capable(const struct cred *cred, struct user_namespace *ns,
209 int security_capable_noaudit(const struct cred *cred, struct user_namespace *ns,
211 int security_quotactl(int cmds, int type, int id, struct super_block *sb);
212 int security_quota_on(struct dentry *dentry);
213 int security_syslog(int type);
214 int security_settime64(const struct timespec64 *ts, const struct timezone *tz);
215 static inline int security_settime(const struct timespec *ts, const struct timezone *tz)
217 struct timespec64 ts64 = timespec_to_timespec64(*ts);
219 return security_settime64(&ts64, tz);
221 int security_vm_enough_memory_mm(struct mm_struct *mm, long pages);
222 int security_bprm_set_creds(struct linux_binprm *bprm);
223 int security_bprm_check(struct linux_binprm *bprm);
224 void security_bprm_committing_creds(struct linux_binprm *bprm);
225 void security_bprm_committed_creds(struct linux_binprm *bprm);
226 int security_bprm_secureexec(struct linux_binprm *bprm);
227 int security_sb_alloc(struct super_block *sb);
228 void security_sb_free(struct super_block *sb);
229 int security_sb_copy_data(char *orig, char *copy);
230 int security_sb_remount(struct super_block *sb, void *data);
231 int security_sb_kern_mount(struct super_block *sb, int flags, void *data);
232 int security_sb_show_options(struct seq_file *m, struct super_block *sb);
233 int security_sb_statfs(struct dentry *dentry);
234 int security_sb_mount(const char *dev_name, const struct path *path,
235 const char *type, unsigned long flags, void *data);
236 int security_sb_umount(struct vfsmount *mnt, int flags);
237 int security_sb_pivotroot(const struct path *old_path, const struct path *new_path);
238 int security_sb_set_mnt_opts(struct super_block *sb,
239 struct security_mnt_opts *opts,
240 unsigned long kern_flags,
241 unsigned long *set_kern_flags);
242 int security_sb_clone_mnt_opts(const struct super_block *oldsb,
243 struct super_block *newsb);
244 int security_sb_parse_opts_str(char *options, struct security_mnt_opts *opts);
245 int security_dentry_init_security(struct dentry *dentry, int mode,
246 const struct qstr *name, void **ctx,
248 int security_dentry_create_files_as(struct dentry *dentry, int mode,
250 const struct cred *old,
253 int security_inode_alloc(struct inode *inode);
254 void security_inode_free(struct inode *inode);
255 int security_inode_init_security(struct inode *inode, struct inode *dir,
256 const struct qstr *qstr,
257 initxattrs initxattrs, void *fs_data);
258 int security_old_inode_init_security(struct inode *inode, struct inode *dir,
259 const struct qstr *qstr, const char **name,
260 void **value, size_t *len);
261 int security_inode_create(struct inode *dir, struct dentry *dentry, umode_t mode);
262 int security_inode_link(struct dentry *old_dentry, struct inode *dir,
263 struct dentry *new_dentry);
264 int security_inode_unlink(struct inode *dir, struct dentry *dentry);
265 int security_inode_symlink(struct inode *dir, struct dentry *dentry,
266 const char *old_name);
267 int security_inode_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode);
268 int security_inode_rmdir(struct inode *dir, struct dentry *dentry);
269 int security_inode_mknod(struct inode *dir, struct dentry *dentry, umode_t mode, dev_t dev);
270 int security_inode_rename(struct inode *old_dir, struct dentry *old_dentry,
271 struct inode *new_dir, struct dentry *new_dentry,
273 int security_inode_readlink(struct dentry *dentry);
274 int security_inode_follow_link(struct dentry *dentry, struct inode *inode,
276 int security_inode_permission(struct inode *inode, int mask);
277 int security_inode_setattr(struct dentry *dentry, struct iattr *attr);
278 int security_inode_getattr(const struct path *path);
279 int security_inode_setxattr(struct dentry *dentry, const char *name,
280 const void *value, size_t size, int flags);
281 void security_inode_post_setxattr(struct dentry *dentry, const char *name,
282 const void *value, size_t size, int flags);
283 int security_inode_getxattr(struct dentry *dentry, const char *name);
284 int security_inode_listxattr(struct dentry *dentry);
285 int security_inode_removexattr(struct dentry *dentry, const char *name);
286 int security_inode_need_killpriv(struct dentry *dentry);
287 int security_inode_killpriv(struct dentry *dentry);
288 int security_inode_getsecurity(struct inode *inode, const char *name, void **buffer, bool alloc);
289 int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags);
290 int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size);
291 void security_inode_getsecid(struct inode *inode, u32 *secid);
292 int security_inode_copy_up(struct dentry *src, struct cred **new);
293 int security_inode_copy_up_xattr(const char *name);
294 int security_file_permission(struct file *file, int mask);
295 int security_file_alloc(struct file *file);
296 void security_file_free(struct file *file);
297 int security_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg);
298 int security_mmap_file(struct file *file, unsigned long prot,
299 unsigned long flags);
300 int security_mmap_addr(unsigned long addr);
301 int security_file_mprotect(struct vm_area_struct *vma, unsigned long reqprot,
303 int security_file_lock(struct file *file, unsigned int cmd);
304 int security_file_fcntl(struct file *file, unsigned int cmd, unsigned long arg);
305 void security_file_set_fowner(struct file *file);
306 int security_file_send_sigiotask(struct task_struct *tsk,
307 struct fown_struct *fown, int sig);
308 int security_file_receive(struct file *file);
309 int security_file_open(struct file *file, const struct cred *cred);
310 int security_task_create(unsigned long clone_flags);
311 int security_task_alloc(struct task_struct *task, unsigned long clone_flags);
312 void security_task_free(struct task_struct *task);
313 int security_cred_alloc_blank(struct cred *cred, gfp_t gfp);
314 void security_cred_free(struct cred *cred);
315 int security_prepare_creds(struct cred *new, const struct cred *old, gfp_t gfp);
316 void security_transfer_creds(struct cred *new, const struct cred *old);
317 int security_kernel_act_as(struct cred *new, u32 secid);
318 int security_kernel_create_files_as(struct cred *new, struct inode *inode);
319 int security_kernel_module_request(char *kmod_name);
320 int security_kernel_read_file(struct file *file, enum kernel_read_file_id id);
321 int security_kernel_post_read_file(struct file *file, char *buf, loff_t size,
322 enum kernel_read_file_id id);
323 int security_task_fix_setuid(struct cred *new, const struct cred *old,
325 int security_task_setpgid(struct task_struct *p, pid_t pgid);
326 int security_task_getpgid(struct task_struct *p);
327 int security_task_getsid(struct task_struct *p);
328 void security_task_getsecid(struct task_struct *p, u32 *secid);
329 int security_task_setnice(struct task_struct *p, int nice);
330 int security_task_setioprio(struct task_struct *p, int ioprio);
331 int security_task_getioprio(struct task_struct *p);
332 int security_task_prlimit(const struct cred *cred, const struct cred *tcred,
334 int security_task_setrlimit(struct task_struct *p, unsigned int resource,
335 struct rlimit *new_rlim);
336 int security_task_setscheduler(struct task_struct *p);
337 int security_task_getscheduler(struct task_struct *p);
338 int security_task_movememory(struct task_struct *p);
339 int security_task_kill(struct task_struct *p, struct siginfo *info,
341 int security_task_prctl(int option, unsigned long arg2, unsigned long arg3,
342 unsigned long arg4, unsigned long arg5);
343 void security_task_to_inode(struct task_struct *p, struct inode *inode);
344 int security_ipc_permission(struct kern_ipc_perm *ipcp, short flag);
345 void security_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid);
346 int security_msg_msg_alloc(struct msg_msg *msg);
347 void security_msg_msg_free(struct msg_msg *msg);
348 int security_msg_queue_alloc(struct msg_queue *msq);
349 void security_msg_queue_free(struct msg_queue *msq);
350 int security_msg_queue_associate(struct msg_queue *msq, int msqflg);
351 int security_msg_queue_msgctl(struct msg_queue *msq, int cmd);
352 int security_msg_queue_msgsnd(struct msg_queue *msq,
353 struct msg_msg *msg, int msqflg);
354 int security_msg_queue_msgrcv(struct msg_queue *msq, struct msg_msg *msg,
355 struct task_struct *target, long type, int mode);
356 int security_shm_alloc(struct shmid_kernel *shp);
357 void security_shm_free(struct shmid_kernel *shp);
358 int security_shm_associate(struct shmid_kernel *shp, int shmflg);
359 int security_shm_shmctl(struct shmid_kernel *shp, int cmd);
360 int security_shm_shmat(struct shmid_kernel *shp, char __user *shmaddr, int shmflg);
361 int security_sem_alloc(struct sem_array *sma);
362 void security_sem_free(struct sem_array *sma);
363 int security_sem_associate(struct sem_array *sma, int semflg);
364 int security_sem_semctl(struct sem_array *sma, int cmd);
365 int security_sem_semop(struct sem_array *sma, struct sembuf *sops,
366 unsigned nsops, int alter);
367 void security_d_instantiate(struct dentry *dentry, struct inode *inode);
368 int security_getprocattr(struct task_struct *p, char *name, char **value);
369 int security_setprocattr(const char *name, void *value, size_t size);
370 int security_netlink_send(struct sock *sk, struct sk_buff *skb);
371 int security_ismaclabel(const char *name);
372 int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen);
373 int security_secctx_to_secid(const char *secdata, u32 seclen, u32 *secid);
374 void security_release_secctx(char *secdata, u32 seclen);
376 void security_inode_invalidate_secctx(struct inode *inode);
377 int security_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen);
378 int security_inode_setsecctx(struct dentry *dentry, void *ctx, u32 ctxlen);
379 int security_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen);
380 #else /* CONFIG_SECURITY */
381 struct security_mnt_opts {
384 static inline void security_init_mnt_opts(struct security_mnt_opts *opts)
388 static inline void security_free_mnt_opts(struct security_mnt_opts *opts)
393 * This is the default capabilities functionality. Most of these functions
394 * are just stubbed out, but a few must call the proper capable code.
397 static inline int security_init(void)
402 static inline int security_binder_set_context_mgr(struct task_struct *mgr)
407 static inline int security_binder_transaction(struct task_struct *from,
408 struct task_struct *to)
413 static inline int security_binder_transfer_binder(struct task_struct *from,
414 struct task_struct *to)
419 static inline int security_binder_transfer_file(struct task_struct *from,
420 struct task_struct *to,
426 static inline int security_ptrace_access_check(struct task_struct *child,
429 return cap_ptrace_access_check(child, mode);
432 static inline int security_ptrace_traceme(struct task_struct *parent)
434 return cap_ptrace_traceme(parent);
437 static inline int security_capget(struct task_struct *target,
438 kernel_cap_t *effective,
439 kernel_cap_t *inheritable,
440 kernel_cap_t *permitted)
442 return cap_capget(target, effective, inheritable, permitted);
445 static inline int security_capset(struct cred *new,
446 const struct cred *old,
447 const kernel_cap_t *effective,
448 const kernel_cap_t *inheritable,
449 const kernel_cap_t *permitted)
451 return cap_capset(new, old, effective, inheritable, permitted);
454 static inline int security_capable(const struct cred *cred,
455 struct user_namespace *ns, int cap)
457 return cap_capable(cred, ns, cap, SECURITY_CAP_AUDIT);
460 static inline int security_capable_noaudit(const struct cred *cred,
461 struct user_namespace *ns, int cap) {
462 return cap_capable(cred, ns, cap, SECURITY_CAP_NOAUDIT);
465 static inline int security_quotactl(int cmds, int type, int id,
466 struct super_block *sb)
471 static inline int security_quota_on(struct dentry *dentry)
476 static inline int security_syslog(int type)
481 static inline int security_settime64(const struct timespec64 *ts,
482 const struct timezone *tz)
484 return cap_settime(ts, tz);
487 static inline int security_settime(const struct timespec *ts,
488 const struct timezone *tz)
490 struct timespec64 ts64 = timespec_to_timespec64(*ts);
492 return cap_settime(&ts64, tz);
495 static inline int security_vm_enough_memory_mm(struct mm_struct *mm, long pages)
497 return __vm_enough_memory(mm, pages, cap_vm_enough_memory(mm, pages));
500 static inline int security_bprm_set_creds(struct linux_binprm *bprm)
502 return cap_bprm_set_creds(bprm);
505 static inline int security_bprm_check(struct linux_binprm *bprm)
510 static inline void security_bprm_committing_creds(struct linux_binprm *bprm)
514 static inline void security_bprm_committed_creds(struct linux_binprm *bprm)
518 static inline int security_bprm_secureexec(struct linux_binprm *bprm)
520 return cap_bprm_secureexec(bprm);
523 static inline int security_sb_alloc(struct super_block *sb)
528 static inline void security_sb_free(struct super_block *sb)
531 static inline int security_sb_copy_data(char *orig, char *copy)
536 static inline int security_sb_remount(struct super_block *sb, void *data)
541 static inline int security_sb_kern_mount(struct super_block *sb, int flags, void *data)
546 static inline int security_sb_show_options(struct seq_file *m,
547 struct super_block *sb)
552 static inline int security_sb_statfs(struct dentry *dentry)
557 static inline int security_sb_mount(const char *dev_name, const struct path *path,
558 const char *type, unsigned long flags,
564 static inline int security_sb_umount(struct vfsmount *mnt, int flags)
569 static inline int security_sb_pivotroot(const struct path *old_path,
570 const struct path *new_path)
575 static inline int security_sb_set_mnt_opts(struct super_block *sb,
576 struct security_mnt_opts *opts,
577 unsigned long kern_flags,
578 unsigned long *set_kern_flags)
583 static inline int security_sb_clone_mnt_opts(const struct super_block *oldsb,
584 struct super_block *newsb)
589 static inline int security_sb_parse_opts_str(char *options, struct security_mnt_opts *opts)
594 static inline int security_inode_alloc(struct inode *inode)
599 static inline void security_inode_free(struct inode *inode)
602 static inline int security_dentry_init_security(struct dentry *dentry,
604 const struct qstr *name,
611 static inline int security_dentry_create_files_as(struct dentry *dentry,
612 int mode, struct qstr *name,
613 const struct cred *old,
620 static inline int security_inode_init_security(struct inode *inode,
622 const struct qstr *qstr,
623 const initxattrs xattrs,
629 static inline int security_old_inode_init_security(struct inode *inode,
631 const struct qstr *qstr,
633 void **value, size_t *len)
638 static inline int security_inode_create(struct inode *dir,
639 struct dentry *dentry,
645 static inline int security_inode_link(struct dentry *old_dentry,
647 struct dentry *new_dentry)
652 static inline int security_inode_unlink(struct inode *dir,
653 struct dentry *dentry)
658 static inline int security_inode_symlink(struct inode *dir,
659 struct dentry *dentry,
660 const char *old_name)
665 static inline int security_inode_mkdir(struct inode *dir,
666 struct dentry *dentry,
672 static inline int security_inode_rmdir(struct inode *dir,
673 struct dentry *dentry)
678 static inline int security_inode_mknod(struct inode *dir,
679 struct dentry *dentry,
685 static inline int security_inode_rename(struct inode *old_dir,
686 struct dentry *old_dentry,
687 struct inode *new_dir,
688 struct dentry *new_dentry,
694 static inline int security_inode_readlink(struct dentry *dentry)
699 static inline int security_inode_follow_link(struct dentry *dentry,
706 static inline int security_inode_permission(struct inode *inode, int mask)
711 static inline int security_inode_setattr(struct dentry *dentry,
717 static inline int security_inode_getattr(const struct path *path)
722 static inline int security_inode_setxattr(struct dentry *dentry,
723 const char *name, const void *value, size_t size, int flags)
725 return cap_inode_setxattr(dentry, name, value, size, flags);
728 static inline void security_inode_post_setxattr(struct dentry *dentry,
729 const char *name, const void *value, size_t size, int flags)
732 static inline int security_inode_getxattr(struct dentry *dentry,
738 static inline int security_inode_listxattr(struct dentry *dentry)
743 static inline int security_inode_removexattr(struct dentry *dentry,
746 return cap_inode_removexattr(dentry, name);
749 static inline int security_inode_need_killpriv(struct dentry *dentry)
751 return cap_inode_need_killpriv(dentry);
754 static inline int security_inode_killpriv(struct dentry *dentry)
756 return cap_inode_killpriv(dentry);
759 static inline int security_inode_getsecurity(struct inode *inode, const char *name, void **buffer, bool alloc)
764 static inline int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags)
769 static inline int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size)
774 static inline void security_inode_getsecid(struct inode *inode, u32 *secid)
779 static inline int security_inode_copy_up(struct dentry *src, struct cred **new)
784 static inline int security_inode_copy_up_xattr(const char *name)
789 static inline int security_file_permission(struct file *file, int mask)
794 static inline int security_file_alloc(struct file *file)
799 static inline void security_file_free(struct file *file)
802 static inline int security_file_ioctl(struct file *file, unsigned int cmd,
808 static inline int security_mmap_file(struct file *file, unsigned long prot,
814 static inline int security_mmap_addr(unsigned long addr)
816 return cap_mmap_addr(addr);
819 static inline int security_file_mprotect(struct vm_area_struct *vma,
820 unsigned long reqprot,
826 static inline int security_file_lock(struct file *file, unsigned int cmd)
831 static inline int security_file_fcntl(struct file *file, unsigned int cmd,
837 static inline void security_file_set_fowner(struct file *file)
842 static inline int security_file_send_sigiotask(struct task_struct *tsk,
843 struct fown_struct *fown,
849 static inline int security_file_receive(struct file *file)
854 static inline int security_file_open(struct file *file,
855 const struct cred *cred)
860 static inline int security_task_create(unsigned long clone_flags)
865 static inline int security_task_alloc(struct task_struct *task,
866 unsigned long clone_flags)
871 static inline void security_task_free(struct task_struct *task)
874 static inline int security_cred_alloc_blank(struct cred *cred, gfp_t gfp)
879 static inline void security_cred_free(struct cred *cred)
882 static inline int security_prepare_creds(struct cred *new,
883 const struct cred *old,
889 static inline void security_transfer_creds(struct cred *new,
890 const struct cred *old)
894 static inline int security_kernel_act_as(struct cred *cred, u32 secid)
899 static inline int security_kernel_create_files_as(struct cred *cred,
905 static inline int security_kernel_module_request(char *kmod_name)
910 static inline int security_kernel_read_file(struct file *file,
911 enum kernel_read_file_id id)
916 static inline int security_kernel_post_read_file(struct file *file,
917 char *buf, loff_t size,
918 enum kernel_read_file_id id)
923 static inline int security_task_fix_setuid(struct cred *new,
924 const struct cred *old,
927 return cap_task_fix_setuid(new, old, flags);
930 static inline int security_task_setpgid(struct task_struct *p, pid_t pgid)
935 static inline int security_task_getpgid(struct task_struct *p)
940 static inline int security_task_getsid(struct task_struct *p)
945 static inline void security_task_getsecid(struct task_struct *p, u32 *secid)
950 static inline int security_task_setnice(struct task_struct *p, int nice)
952 return cap_task_setnice(p, nice);
955 static inline int security_task_setioprio(struct task_struct *p, int ioprio)
957 return cap_task_setioprio(p, ioprio);
960 static inline int security_task_getioprio(struct task_struct *p)
965 static inline int security_task_prlimit(const struct cred *cred,
966 const struct cred *tcred,
972 static inline int security_task_setrlimit(struct task_struct *p,
973 unsigned int resource,
974 struct rlimit *new_rlim)
979 static inline int security_task_setscheduler(struct task_struct *p)
981 return cap_task_setscheduler(p);
984 static inline int security_task_getscheduler(struct task_struct *p)
989 static inline int security_task_movememory(struct task_struct *p)
994 static inline int security_task_kill(struct task_struct *p,
995 struct siginfo *info, int sig,
1001 static inline int security_task_prctl(int option, unsigned long arg2,
1006 return cap_task_prctl(option, arg2, arg3, arg4, arg5);
1009 static inline void security_task_to_inode(struct task_struct *p, struct inode *inode)
1012 static inline int security_ipc_permission(struct kern_ipc_perm *ipcp,
1018 static inline void security_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid)
1023 static inline int security_msg_msg_alloc(struct msg_msg *msg)
1028 static inline void security_msg_msg_free(struct msg_msg *msg)
1031 static inline int security_msg_queue_alloc(struct msg_queue *msq)
1036 static inline void security_msg_queue_free(struct msg_queue *msq)
1039 static inline int security_msg_queue_associate(struct msg_queue *msq,
1045 static inline int security_msg_queue_msgctl(struct msg_queue *msq, int cmd)
1050 static inline int security_msg_queue_msgsnd(struct msg_queue *msq,
1051 struct msg_msg *msg, int msqflg)
1056 static inline int security_msg_queue_msgrcv(struct msg_queue *msq,
1057 struct msg_msg *msg,
1058 struct task_struct *target,
1059 long type, int mode)
1064 static inline int security_shm_alloc(struct shmid_kernel *shp)
1069 static inline void security_shm_free(struct shmid_kernel *shp)
1072 static inline int security_shm_associate(struct shmid_kernel *shp,
1078 static inline int security_shm_shmctl(struct shmid_kernel *shp, int cmd)
1083 static inline int security_shm_shmat(struct shmid_kernel *shp,
1084 char __user *shmaddr, int shmflg)
1089 static inline int security_sem_alloc(struct sem_array *sma)
1094 static inline void security_sem_free(struct sem_array *sma)
1097 static inline int security_sem_associate(struct sem_array *sma, int semflg)
1102 static inline int security_sem_semctl(struct sem_array *sma, int cmd)
1107 static inline int security_sem_semop(struct sem_array *sma,
1108 struct sembuf *sops, unsigned nsops,
1114 static inline void security_d_instantiate(struct dentry *dentry, struct inode *inode)
1117 static inline int security_getprocattr(struct task_struct *p, char *name, char **value)
1122 static inline int security_setprocattr(char *name, void *value, size_t size)
1127 static inline int security_netlink_send(struct sock *sk, struct sk_buff *skb)
1132 static inline int security_ismaclabel(const char *name)
1137 static inline int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen)
1142 static inline int security_secctx_to_secid(const char *secdata,
1149 static inline void security_release_secctx(char *secdata, u32 seclen)
1153 static inline void security_inode_invalidate_secctx(struct inode *inode)
1157 static inline int security_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen)
1161 static inline int security_inode_setsecctx(struct dentry *dentry, void *ctx, u32 ctxlen)
1165 static inline int security_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen)
1169 #endif /* CONFIG_SECURITY */
1171 #ifdef CONFIG_SECURITY_NETWORK
1173 int security_unix_stream_connect(struct sock *sock, struct sock *other, struct sock *newsk);
1174 int security_unix_may_send(struct socket *sock, struct socket *other);
1175 int security_socket_create(int family, int type, int protocol, int kern);
1176 int security_socket_post_create(struct socket *sock, int family,
1177 int type, int protocol, int kern);
1178 int security_socket_bind(struct socket *sock, struct sockaddr *address, int addrlen);
1179 int security_socket_connect(struct socket *sock, struct sockaddr *address, int addrlen);
1180 int security_socket_listen(struct socket *sock, int backlog);
1181 int security_socket_accept(struct socket *sock, struct socket *newsock);
1182 int security_socket_sendmsg(struct socket *sock, struct msghdr *msg, int size);
1183 int security_socket_recvmsg(struct socket *sock, struct msghdr *msg,
1184 int size, int flags);
1185 int security_socket_getsockname(struct socket *sock);
1186 int security_socket_getpeername(struct socket *sock);
1187 int security_socket_getsockopt(struct socket *sock, int level, int optname);
1188 int security_socket_setsockopt(struct socket *sock, int level, int optname);
1189 int security_socket_shutdown(struct socket *sock, int how);
1190 int security_sock_rcv_skb(struct sock *sk, struct sk_buff *skb);
1191 int security_socket_getpeersec_stream(struct socket *sock, char __user *optval,
1192 int __user *optlen, unsigned len);
1193 int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid);
1194 int security_sk_alloc(struct sock *sk, int family, gfp_t priority);
1195 void security_sk_free(struct sock *sk);
1196 void security_sk_clone(const struct sock *sk, struct sock *newsk);
1197 void security_sk_classify_flow(struct sock *sk, struct flowi *fl);
1198 void security_req_classify_flow(const struct request_sock *req, struct flowi *fl);
1199 void security_sock_graft(struct sock*sk, struct socket *parent);
1200 int security_inet_conn_request(struct sock *sk,
1201 struct sk_buff *skb, struct request_sock *req);
1202 void security_inet_csk_clone(struct sock *newsk,
1203 const struct request_sock *req);
1204 void security_inet_conn_established(struct sock *sk,
1205 struct sk_buff *skb);
1206 int security_secmark_relabel_packet(u32 secid);
1207 void security_secmark_refcount_inc(void);
1208 void security_secmark_refcount_dec(void);
1209 int security_tun_dev_alloc_security(void **security);
1210 void security_tun_dev_free_security(void *security);
1211 int security_tun_dev_create(void);
1212 int security_tun_dev_attach_queue(void *security);
1213 int security_tun_dev_attach(struct sock *sk, void *security);
1214 int security_tun_dev_open(void *security);
1216 #else /* CONFIG_SECURITY_NETWORK */
1217 static inline int security_unix_stream_connect(struct sock *sock,
1224 static inline int security_unix_may_send(struct socket *sock,
1225 struct socket *other)
1230 static inline int security_socket_create(int family, int type,
1231 int protocol, int kern)
1236 static inline int security_socket_post_create(struct socket *sock,
1239 int protocol, int kern)
1244 static inline int security_socket_bind(struct socket *sock,
1245 struct sockaddr *address,
1251 static inline int security_socket_connect(struct socket *sock,
1252 struct sockaddr *address,
1258 static inline int security_socket_listen(struct socket *sock, int backlog)
1263 static inline int security_socket_accept(struct socket *sock,
1264 struct socket *newsock)
1269 static inline int security_socket_sendmsg(struct socket *sock,
1270 struct msghdr *msg, int size)
1275 static inline int security_socket_recvmsg(struct socket *sock,
1276 struct msghdr *msg, int size,
1282 static inline int security_socket_getsockname(struct socket *sock)
1287 static inline int security_socket_getpeername(struct socket *sock)
1292 static inline int security_socket_getsockopt(struct socket *sock,
1293 int level, int optname)
1298 static inline int security_socket_setsockopt(struct socket *sock,
1299 int level, int optname)
1304 static inline int security_socket_shutdown(struct socket *sock, int how)
1308 static inline int security_sock_rcv_skb(struct sock *sk,
1309 struct sk_buff *skb)
1314 static inline int security_socket_getpeersec_stream(struct socket *sock, char __user *optval,
1315 int __user *optlen, unsigned len)
1317 return -ENOPROTOOPT;
1320 static inline int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid)
1322 return -ENOPROTOOPT;
1325 static inline int security_sk_alloc(struct sock *sk, int family, gfp_t priority)
1330 static inline void security_sk_free(struct sock *sk)
1334 static inline void security_sk_clone(const struct sock *sk, struct sock *newsk)
1338 static inline void security_sk_classify_flow(struct sock *sk, struct flowi *fl)
1342 static inline void security_req_classify_flow(const struct request_sock *req, struct flowi *fl)
1346 static inline void security_sock_graft(struct sock *sk, struct socket *parent)
1350 static inline int security_inet_conn_request(struct sock *sk,
1351 struct sk_buff *skb, struct request_sock *req)
1356 static inline void security_inet_csk_clone(struct sock *newsk,
1357 const struct request_sock *req)
1361 static inline void security_inet_conn_established(struct sock *sk,
1362 struct sk_buff *skb)
1366 static inline int security_secmark_relabel_packet(u32 secid)
1371 static inline void security_secmark_refcount_inc(void)
1375 static inline void security_secmark_refcount_dec(void)
1379 static inline int security_tun_dev_alloc_security(void **security)
1384 static inline void security_tun_dev_free_security(void *security)
1388 static inline int security_tun_dev_create(void)
1393 static inline int security_tun_dev_attach_queue(void *security)
1398 static inline int security_tun_dev_attach(struct sock *sk, void *security)
1403 static inline int security_tun_dev_open(void *security)
1407 #endif /* CONFIG_SECURITY_NETWORK */
1409 #ifdef CONFIG_SECURITY_NETWORK_XFRM
1411 int security_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp,
1412 struct xfrm_user_sec_ctx *sec_ctx, gfp_t gfp);
1413 int security_xfrm_policy_clone(struct xfrm_sec_ctx *old_ctx, struct xfrm_sec_ctx **new_ctxp);
1414 void security_xfrm_policy_free(struct xfrm_sec_ctx *ctx);
1415 int security_xfrm_policy_delete(struct xfrm_sec_ctx *ctx);
1416 int security_xfrm_state_alloc(struct xfrm_state *x, struct xfrm_user_sec_ctx *sec_ctx);
1417 int security_xfrm_state_alloc_acquire(struct xfrm_state *x,
1418 struct xfrm_sec_ctx *polsec, u32 secid);
1419 int security_xfrm_state_delete(struct xfrm_state *x);
1420 void security_xfrm_state_free(struct xfrm_state *x);
1421 int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir);
1422 int security_xfrm_state_pol_flow_match(struct xfrm_state *x,
1423 struct xfrm_policy *xp,
1424 const struct flowi *fl);
1425 int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid);
1426 void security_skb_classify_flow(struct sk_buff *skb, struct flowi *fl);
1428 #else /* CONFIG_SECURITY_NETWORK_XFRM */
1430 static inline int security_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp,
1431 struct xfrm_user_sec_ctx *sec_ctx,
1437 static inline int security_xfrm_policy_clone(struct xfrm_sec_ctx *old, struct xfrm_sec_ctx **new_ctxp)
1442 static inline void security_xfrm_policy_free(struct xfrm_sec_ctx *ctx)
1446 static inline int security_xfrm_policy_delete(struct xfrm_sec_ctx *ctx)
1451 static inline int security_xfrm_state_alloc(struct xfrm_state *x,
1452 struct xfrm_user_sec_ctx *sec_ctx)
1457 static inline int security_xfrm_state_alloc_acquire(struct xfrm_state *x,
1458 struct xfrm_sec_ctx *polsec, u32 secid)
1463 static inline void security_xfrm_state_free(struct xfrm_state *x)
1467 static inline int security_xfrm_state_delete(struct xfrm_state *x)
1472 static inline int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir)
1477 static inline int security_xfrm_state_pol_flow_match(struct xfrm_state *x,
1478 struct xfrm_policy *xp, const struct flowi *fl)
1483 static inline int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid)
1488 static inline void security_skb_classify_flow(struct sk_buff *skb, struct flowi *fl)
1492 #endif /* CONFIG_SECURITY_NETWORK_XFRM */
1494 #ifdef CONFIG_SECURITY_PATH
1495 int security_path_unlink(const struct path *dir, struct dentry *dentry);
1496 int security_path_mkdir(const struct path *dir, struct dentry *dentry, umode_t mode);
1497 int security_path_rmdir(const struct path *dir, struct dentry *dentry);
1498 int security_path_mknod(const struct path *dir, struct dentry *dentry, umode_t mode,
1500 int security_path_truncate(const struct path *path);
1501 int security_path_symlink(const struct path *dir, struct dentry *dentry,
1502 const char *old_name);
1503 int security_path_link(struct dentry *old_dentry, const struct path *new_dir,
1504 struct dentry *new_dentry);
1505 int security_path_rename(const struct path *old_dir, struct dentry *old_dentry,
1506 const struct path *new_dir, struct dentry *new_dentry,
1507 unsigned int flags);
1508 int security_path_chmod(const struct path *path, umode_t mode);
1509 int security_path_chown(const struct path *path, kuid_t uid, kgid_t gid);
1510 int security_path_chroot(const struct path *path);
1511 #else /* CONFIG_SECURITY_PATH */
1512 static inline int security_path_unlink(const struct path *dir, struct dentry *dentry)
1517 static inline int security_path_mkdir(const struct path *dir, struct dentry *dentry,
1523 static inline int security_path_rmdir(const struct path *dir, struct dentry *dentry)
1528 static inline int security_path_mknod(const struct path *dir, struct dentry *dentry,
1529 umode_t mode, unsigned int dev)
1534 static inline int security_path_truncate(const struct path *path)
1539 static inline int security_path_symlink(const struct path *dir, struct dentry *dentry,
1540 const char *old_name)
1545 static inline int security_path_link(struct dentry *old_dentry,
1546 const struct path *new_dir,
1547 struct dentry *new_dentry)
1552 static inline int security_path_rename(const struct path *old_dir,
1553 struct dentry *old_dentry,
1554 const struct path *new_dir,
1555 struct dentry *new_dentry,
1561 static inline int security_path_chmod(const struct path *path, umode_t mode)
1566 static inline int security_path_chown(const struct path *path, kuid_t uid, kgid_t gid)
1571 static inline int security_path_chroot(const struct path *path)
1575 #endif /* CONFIG_SECURITY_PATH */
1578 #ifdef CONFIG_SECURITY
1580 int security_key_alloc(struct key *key, const struct cred *cred, unsigned long flags);
1581 void security_key_free(struct key *key);
1582 int security_key_permission(key_ref_t key_ref,
1583 const struct cred *cred, unsigned perm);
1584 int security_key_getsecurity(struct key *key, char **_buffer);
1588 static inline int security_key_alloc(struct key *key,
1589 const struct cred *cred,
1590 unsigned long flags)
1595 static inline void security_key_free(struct key *key)
1599 static inline int security_key_permission(key_ref_t key_ref,
1600 const struct cred *cred,
1606 static inline int security_key_getsecurity(struct key *key, char **_buffer)
1613 #endif /* CONFIG_KEYS */
1616 #ifdef CONFIG_SECURITY
1617 int security_audit_rule_init(u32 field, u32 op, char *rulestr, void **lsmrule);
1618 int security_audit_rule_known(struct audit_krule *krule);
1619 int security_audit_rule_match(u32 secid, u32 field, u32 op, void *lsmrule,
1620 struct audit_context *actx);
1621 void security_audit_rule_free(void *lsmrule);
1625 static inline int security_audit_rule_init(u32 field, u32 op, char *rulestr,
1631 static inline int security_audit_rule_known(struct audit_krule *krule)
1636 static inline int security_audit_rule_match(u32 secid, u32 field, u32 op,
1637 void *lsmrule, struct audit_context *actx)
1642 static inline void security_audit_rule_free(void *lsmrule)
1645 #endif /* CONFIG_SECURITY */
1646 #endif /* CONFIG_AUDIT */
1648 #ifdef CONFIG_SECURITYFS
1650 extern struct dentry *securityfs_create_file(const char *name, umode_t mode,
1651 struct dentry *parent, void *data,
1652 const struct file_operations *fops);
1653 extern struct dentry *securityfs_create_dir(const char *name, struct dentry *parent);
1654 extern void securityfs_remove(struct dentry *dentry);
1656 #else /* CONFIG_SECURITYFS */
1658 static inline struct dentry *securityfs_create_dir(const char *name,
1659 struct dentry *parent)
1661 return ERR_PTR(-ENODEV);
1664 static inline struct dentry *securityfs_create_file(const char *name,
1666 struct dentry *parent,
1668 const struct file_operations *fops)
1670 return ERR_PTR(-ENODEV);
1673 static inline void securityfs_remove(struct dentry *dentry)
1678 #ifdef CONFIG_SECURITY
1680 static inline char *alloc_secdata(void)
1682 return (char *)get_zeroed_page(GFP_KERNEL);
1685 static inline void free_secdata(void *secdata)
1687 free_page((unsigned long)secdata);
1692 static inline char *alloc_secdata(void)
1697 static inline void free_secdata(void *secdata)
1699 #endif /* CONFIG_SECURITY */
1701 #endif /* ! __LINUX_SECURITY_H */