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)
9 * Copyright (C) 2016 Mellanox Techonologies
11 * This program is free software; you can redistribute it and/or modify
12 * it under the terms of the GNU General Public License as published by
13 * the Free Software Foundation; either version 2 of the License, or
14 * (at your option) any later version.
16 * Due to this file being licensed under the GPL there is controversy over
17 * whether this permits you to write a module that #includes this file
18 * without placing your module under the GPL. Please consult a lawyer for
19 * advice before doing this.
23 #ifndef __LINUX_SECURITY_H
24 #define __LINUX_SECURITY_H
26 #include <linux/key.h>
27 #include <linux/capability.h>
29 #include <linux/slab.h>
30 #include <linux/err.h>
31 #include <linux/string.h>
51 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;
73 /* These functions are in security/commoncap.c */
74 extern int cap_capable(const struct cred *cred, struct user_namespace *ns,
76 extern int cap_settime(const struct timespec64 *ts, const struct timezone *tz);
77 extern int cap_ptrace_access_check(struct task_struct *child, unsigned int mode);
78 extern int cap_ptrace_traceme(struct task_struct *parent);
79 extern int cap_capget(struct task_struct *target, kernel_cap_t *effective, kernel_cap_t *inheritable, kernel_cap_t *permitted);
80 extern int cap_capset(struct cred *new, const struct cred *old,
81 const kernel_cap_t *effective,
82 const kernel_cap_t *inheritable,
83 const kernel_cap_t *permitted);
84 extern int cap_bprm_set_creds(struct linux_binprm *bprm);
85 extern int cap_inode_setxattr(struct dentry *dentry, const char *name,
86 const void *value, size_t size, int flags);
87 extern int cap_inode_removexattr(struct dentry *dentry, const char *name);
88 extern int cap_inode_need_killpriv(struct dentry *dentry);
89 extern int cap_inode_killpriv(struct dentry *dentry);
90 extern int cap_inode_getsecurity(struct inode *inode, const char *name,
91 void **buffer, bool alloc);
92 extern int cap_mmap_addr(unsigned long addr);
93 extern int cap_mmap_file(struct file *file, unsigned long reqprot,
94 unsigned long prot, unsigned long flags);
95 extern int cap_task_fix_setuid(struct cred *new, const struct cred *old, int flags);
96 extern int cap_task_prctl(int option, unsigned long arg2, unsigned long arg3,
97 unsigned long arg4, unsigned long arg5);
98 extern int cap_task_setscheduler(struct task_struct *p);
99 extern int cap_task_setioprio(struct task_struct *p, int ioprio);
100 extern int cap_task_setnice(struct task_struct *p, int nice);
101 extern int cap_vm_enough_memory(struct mm_struct *mm, long pages);
110 struct xfrm_selector;
113 struct xfrm_user_sec_ctx;
115 struct sctp_endpoint;
118 extern unsigned long mmap_min_addr;
119 extern unsigned long dac_mmap_min_addr;
121 #define mmap_min_addr 0UL
122 #define dac_mmap_min_addr 0UL
126 * Values used in the task_security_ops calls
128 /* setuid or setgid, id0 == uid or gid */
129 #define LSM_SETID_ID 1
131 /* setreuid or setregid, id0 == real, id1 == eff */
132 #define LSM_SETID_RE 2
134 /* setresuid or setresgid, id0 == real, id1 == eff, uid2 == saved */
135 #define LSM_SETID_RES 4
137 /* setfsuid or setfsgid, id0 == fsuid or fsgid */
138 #define LSM_SETID_FS 8
140 /* Flags for security_task_prlimit(). */
141 #define LSM_PRLIMIT_READ 1
142 #define LSM_PRLIMIT_WRITE 2
144 /* forward declares to avoid warnings */
148 /* bprm->unsafe reasons */
149 #define LSM_UNSAFE_SHARE 1
150 #define LSM_UNSAFE_PTRACE 2
151 #define LSM_UNSAFE_NO_NEW_PRIVS 4
154 extern int mmap_min_addr_handler(struct ctl_table *table, int write,
155 void __user *buffer, size_t *lenp, loff_t *ppos);
158 /* security_inode_init_security callback function to write xattrs */
159 typedef int (*initxattrs) (struct inode *inode,
160 const struct xattr *xattr_array, void *fs_data);
163 /* Keep the kernel_load_data_id enum in sync with kernel_read_file_id */
164 #define __data_id_enumify(ENUM, dummy) LOADING_ ## ENUM,
165 #define __data_id_stringify(dummy, str) #str,
167 enum kernel_load_data_id {
168 __kernel_read_file_id(__data_id_enumify)
171 static const char * const kernel_load_data_str[] = {
172 __kernel_read_file_id(__data_id_stringify)
175 static inline const char *kernel_load_data_id_str(enum kernel_load_data_id id)
177 if ((unsigned)id >= LOADING_MAX_ID)
178 return kernel_load_data_str[LOADING_UNKNOWN];
180 return kernel_load_data_str[id];
183 #ifdef CONFIG_SECURITY
185 struct security_mnt_opts {
191 int call_lsm_notifier(enum lsm_event event, void *data);
192 int register_lsm_notifier(struct notifier_block *nb);
193 int unregister_lsm_notifier(struct notifier_block *nb);
195 static inline void security_init_mnt_opts(struct security_mnt_opts *opts)
197 opts->mnt_opts = NULL;
198 opts->mnt_opts_flags = NULL;
199 opts->num_mnt_opts = 0;
202 static inline void security_free_mnt_opts(struct security_mnt_opts *opts)
206 for (i = 0; i < opts->num_mnt_opts; i++)
207 kfree(opts->mnt_opts[i]);
208 kfree(opts->mnt_opts);
209 opts->mnt_opts = NULL;
210 kfree(opts->mnt_opts_flags);
211 opts->mnt_opts_flags = NULL;
212 opts->num_mnt_opts = 0;
216 extern int security_init(void);
218 /* Security operations */
219 int security_binder_set_context_mgr(struct task_struct *mgr);
220 int security_binder_transaction(struct task_struct *from,
221 struct task_struct *to);
222 int security_binder_transfer_binder(struct task_struct *from,
223 struct task_struct *to);
224 int security_binder_transfer_file(struct task_struct *from,
225 struct task_struct *to, struct file *file);
226 int security_ptrace_access_check(struct task_struct *child, unsigned int mode);
227 int security_ptrace_traceme(struct task_struct *parent);
228 int security_capget(struct task_struct *target,
229 kernel_cap_t *effective,
230 kernel_cap_t *inheritable,
231 kernel_cap_t *permitted);
232 int security_capset(struct cred *new, const struct cred *old,
233 const kernel_cap_t *effective,
234 const kernel_cap_t *inheritable,
235 const kernel_cap_t *permitted);
236 int security_capable(const struct cred *cred, struct user_namespace *ns,
238 int security_capable_noaudit(const struct cred *cred, struct user_namespace *ns,
240 int security_quotactl(int cmds, int type, int id, struct super_block *sb);
241 int security_quota_on(struct dentry *dentry);
242 int security_syslog(int type);
243 int security_settime64(const struct timespec64 *ts, const struct timezone *tz);
244 int security_vm_enough_memory_mm(struct mm_struct *mm, long pages);
245 int security_bprm_set_creds(struct linux_binprm *bprm);
246 int security_bprm_check(struct linux_binprm *bprm);
247 void security_bprm_committing_creds(struct linux_binprm *bprm);
248 void security_bprm_committed_creds(struct linux_binprm *bprm);
249 int security_sb_alloc(struct super_block *sb);
250 void security_sb_free(struct super_block *sb);
251 int security_sb_copy_data(char *orig, char *copy);
252 int security_sb_remount(struct super_block *sb, void *data);
253 int security_sb_kern_mount(struct super_block *sb, int flags, void *data);
254 int security_sb_show_options(struct seq_file *m, struct super_block *sb);
255 int security_sb_statfs(struct dentry *dentry);
256 int security_sb_mount(const char *dev_name, const struct path *path,
257 const char *type, unsigned long flags, void *data);
258 int security_sb_umount(struct vfsmount *mnt, int flags);
259 int security_sb_pivotroot(const struct path *old_path, const struct path *new_path);
260 int security_sb_set_mnt_opts(struct super_block *sb,
261 struct security_mnt_opts *opts,
262 unsigned long kern_flags,
263 unsigned long *set_kern_flags);
264 int security_sb_clone_mnt_opts(const struct super_block *oldsb,
265 struct super_block *newsb,
266 unsigned long kern_flags,
267 unsigned long *set_kern_flags);
268 int security_sb_parse_opts_str(char *options, struct security_mnt_opts *opts);
269 int security_dentry_init_security(struct dentry *dentry, int mode,
270 const struct qstr *name, void **ctx,
272 int security_dentry_create_files_as(struct dentry *dentry, int mode,
274 const struct cred *old,
277 int security_inode_alloc(struct inode *inode);
278 void security_inode_free(struct inode *inode);
279 int security_inode_init_security(struct inode *inode, struct inode *dir,
280 const struct qstr *qstr,
281 initxattrs initxattrs, void *fs_data);
282 int security_old_inode_init_security(struct inode *inode, struct inode *dir,
283 const struct qstr *qstr, const char **name,
284 void **value, size_t *len);
285 int security_inode_create(struct inode *dir, struct dentry *dentry, umode_t mode);
286 int security_inode_link(struct dentry *old_dentry, struct inode *dir,
287 struct dentry *new_dentry);
288 int security_inode_unlink(struct inode *dir, struct dentry *dentry);
289 int security_inode_symlink(struct inode *dir, struct dentry *dentry,
290 const char *old_name);
291 int security_inode_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode);
292 int security_inode_rmdir(struct inode *dir, struct dentry *dentry);
293 int security_inode_mknod(struct inode *dir, struct dentry *dentry, umode_t mode, dev_t dev);
294 int security_inode_rename(struct inode *old_dir, struct dentry *old_dentry,
295 struct inode *new_dir, struct dentry *new_dentry,
297 int security_inode_readlink(struct dentry *dentry);
298 int security_inode_follow_link(struct dentry *dentry, struct inode *inode,
300 int security_inode_permission(struct inode *inode, int mask);
301 int security_inode_setattr(struct dentry *dentry, struct iattr *attr);
302 int security_inode_getattr(const struct path *path);
303 int security_inode_setxattr(struct dentry *dentry, const char *name,
304 const void *value, size_t size, int flags);
305 void security_inode_post_setxattr(struct dentry *dentry, const char *name,
306 const void *value, size_t size, int flags);
307 int security_inode_getxattr(struct dentry *dentry, const char *name);
308 int security_inode_listxattr(struct dentry *dentry);
309 int security_inode_removexattr(struct dentry *dentry, const char *name);
310 int security_inode_need_killpriv(struct dentry *dentry);
311 int security_inode_killpriv(struct dentry *dentry);
312 int security_inode_getsecurity(struct inode *inode, const char *name, void **buffer, bool alloc);
313 int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags);
314 int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size);
315 void security_inode_getsecid(struct inode *inode, u32 *secid);
316 int security_inode_copy_up(struct dentry *src, struct cred **new);
317 int security_inode_copy_up_xattr(const char *name);
318 int security_file_permission(struct file *file, int mask);
319 int security_file_alloc(struct file *file);
320 void security_file_free(struct file *file);
321 int security_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg);
322 int security_mmap_file(struct file *file, unsigned long prot,
323 unsigned long flags);
324 int security_mmap_addr(unsigned long addr);
325 int security_file_mprotect(struct vm_area_struct *vma, unsigned long reqprot,
327 int security_file_lock(struct file *file, unsigned int cmd);
328 int security_file_fcntl(struct file *file, unsigned int cmd, unsigned long arg);
329 void security_file_set_fowner(struct file *file);
330 int security_file_send_sigiotask(struct task_struct *tsk,
331 struct fown_struct *fown, int sig);
332 int security_file_receive(struct file *file);
333 int security_file_open(struct file *file);
334 int security_task_alloc(struct task_struct *task, unsigned long clone_flags);
335 void security_task_free(struct task_struct *task);
336 int security_cred_alloc_blank(struct cred *cred, gfp_t gfp);
337 void security_cred_free(struct cred *cred);
338 int security_prepare_creds(struct cred *new, const struct cred *old, gfp_t gfp);
339 void security_transfer_creds(struct cred *new, const struct cred *old);
340 void security_cred_getsecid(const struct cred *c, u32 *secid);
341 int security_kernel_act_as(struct cred *new, u32 secid);
342 int security_kernel_create_files_as(struct cred *new, struct inode *inode);
343 int security_kernel_module_request(char *kmod_name);
344 int security_kernel_load_data(enum kernel_load_data_id id);
345 int security_kernel_read_file(struct file *file, enum kernel_read_file_id id);
346 int security_kernel_post_read_file(struct file *file, char *buf, loff_t size,
347 enum kernel_read_file_id id);
348 int security_task_fix_setuid(struct cred *new, const struct cred *old,
350 int security_task_setpgid(struct task_struct *p, pid_t pgid);
351 int security_task_getpgid(struct task_struct *p);
352 int security_task_getsid(struct task_struct *p);
353 void security_task_getsecid(struct task_struct *p, u32 *secid);
354 int security_task_setnice(struct task_struct *p, int nice);
355 int security_task_setioprio(struct task_struct *p, int ioprio);
356 int security_task_getioprio(struct task_struct *p);
357 int security_task_prlimit(const struct cred *cred, const struct cred *tcred,
359 int security_task_setrlimit(struct task_struct *p, unsigned int resource,
360 struct rlimit *new_rlim);
361 int security_task_setscheduler(struct task_struct *p);
362 int security_task_getscheduler(struct task_struct *p);
363 int security_task_movememory(struct task_struct *p);
364 int security_task_kill(struct task_struct *p, struct siginfo *info,
365 int sig, const struct cred *cred);
366 int security_task_prctl(int option, unsigned long arg2, unsigned long arg3,
367 unsigned long arg4, unsigned long arg5);
368 void security_task_to_inode(struct task_struct *p, struct inode *inode);
369 int security_ipc_permission(struct kern_ipc_perm *ipcp, short flag);
370 void security_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid);
371 int security_msg_msg_alloc(struct msg_msg *msg);
372 void security_msg_msg_free(struct msg_msg *msg);
373 int security_msg_queue_alloc(struct kern_ipc_perm *msq);
374 void security_msg_queue_free(struct kern_ipc_perm *msq);
375 int security_msg_queue_associate(struct kern_ipc_perm *msq, int msqflg);
376 int security_msg_queue_msgctl(struct kern_ipc_perm *msq, int cmd);
377 int security_msg_queue_msgsnd(struct kern_ipc_perm *msq,
378 struct msg_msg *msg, int msqflg);
379 int security_msg_queue_msgrcv(struct kern_ipc_perm *msq, struct msg_msg *msg,
380 struct task_struct *target, long type, int mode);
381 int security_shm_alloc(struct kern_ipc_perm *shp);
382 void security_shm_free(struct kern_ipc_perm *shp);
383 int security_shm_associate(struct kern_ipc_perm *shp, int shmflg);
384 int security_shm_shmctl(struct kern_ipc_perm *shp, int cmd);
385 int security_shm_shmat(struct kern_ipc_perm *shp, char __user *shmaddr, int shmflg);
386 int security_sem_alloc(struct kern_ipc_perm *sma);
387 void security_sem_free(struct kern_ipc_perm *sma);
388 int security_sem_associate(struct kern_ipc_perm *sma, int semflg);
389 int security_sem_semctl(struct kern_ipc_perm *sma, int cmd);
390 int security_sem_semop(struct kern_ipc_perm *sma, struct sembuf *sops,
391 unsigned nsops, int alter);
392 void security_d_instantiate(struct dentry *dentry, struct inode *inode);
393 int security_getprocattr(struct task_struct *p, char *name, char **value);
394 int security_setprocattr(const char *name, void *value, size_t size);
395 int security_netlink_send(struct sock *sk, struct sk_buff *skb);
396 int security_ismaclabel(const char *name);
397 int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen);
398 int security_secctx_to_secid(const char *secdata, u32 seclen, u32 *secid);
399 void security_release_secctx(char *secdata, u32 seclen);
401 void security_inode_invalidate_secctx(struct inode *inode);
402 int security_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen);
403 int security_inode_setsecctx(struct dentry *dentry, void *ctx, u32 ctxlen);
404 int security_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen);
405 #else /* CONFIG_SECURITY */
406 struct security_mnt_opts {
409 static inline int call_lsm_notifier(enum lsm_event event, void *data)
414 static inline int register_lsm_notifier(struct notifier_block *nb)
419 static inline int unregister_lsm_notifier(struct notifier_block *nb)
424 static inline void security_init_mnt_opts(struct security_mnt_opts *opts)
428 static inline void security_free_mnt_opts(struct security_mnt_opts *opts)
433 * This is the default capabilities functionality. Most of these functions
434 * are just stubbed out, but a few must call the proper capable code.
437 static inline int security_init(void)
442 static inline int security_binder_set_context_mgr(struct task_struct *mgr)
447 static inline int security_binder_transaction(struct task_struct *from,
448 struct task_struct *to)
453 static inline int security_binder_transfer_binder(struct task_struct *from,
454 struct task_struct *to)
459 static inline int security_binder_transfer_file(struct task_struct *from,
460 struct task_struct *to,
466 static inline int security_ptrace_access_check(struct task_struct *child,
469 return cap_ptrace_access_check(child, mode);
472 static inline int security_ptrace_traceme(struct task_struct *parent)
474 return cap_ptrace_traceme(parent);
477 static inline int security_capget(struct task_struct *target,
478 kernel_cap_t *effective,
479 kernel_cap_t *inheritable,
480 kernel_cap_t *permitted)
482 return cap_capget(target, effective, inheritable, permitted);
485 static inline int security_capset(struct cred *new,
486 const struct cred *old,
487 const kernel_cap_t *effective,
488 const kernel_cap_t *inheritable,
489 const kernel_cap_t *permitted)
491 return cap_capset(new, old, effective, inheritable, permitted);
494 static inline int security_capable(const struct cred *cred,
495 struct user_namespace *ns, int cap)
497 return cap_capable(cred, ns, cap, SECURITY_CAP_AUDIT);
500 static inline int security_capable_noaudit(const struct cred *cred,
501 struct user_namespace *ns, int cap) {
502 return cap_capable(cred, ns, cap, SECURITY_CAP_NOAUDIT);
505 static inline int security_quotactl(int cmds, int type, int id,
506 struct super_block *sb)
511 static inline int security_quota_on(struct dentry *dentry)
516 static inline int security_syslog(int type)
521 static inline int security_settime64(const struct timespec64 *ts,
522 const struct timezone *tz)
524 return cap_settime(ts, tz);
527 static inline int security_vm_enough_memory_mm(struct mm_struct *mm, long pages)
529 return __vm_enough_memory(mm, pages, cap_vm_enough_memory(mm, pages));
532 static inline int security_bprm_set_creds(struct linux_binprm *bprm)
534 return cap_bprm_set_creds(bprm);
537 static inline int security_bprm_check(struct linux_binprm *bprm)
542 static inline void security_bprm_committing_creds(struct linux_binprm *bprm)
546 static inline void security_bprm_committed_creds(struct linux_binprm *bprm)
550 static inline int security_sb_alloc(struct super_block *sb)
555 static inline void security_sb_free(struct super_block *sb)
558 static inline int security_sb_copy_data(char *orig, char *copy)
563 static inline int security_sb_remount(struct super_block *sb, void *data)
568 static inline int security_sb_kern_mount(struct super_block *sb, int flags, void *data)
573 static inline int security_sb_show_options(struct seq_file *m,
574 struct super_block *sb)
579 static inline int security_sb_statfs(struct dentry *dentry)
584 static inline int security_sb_mount(const char *dev_name, const struct path *path,
585 const char *type, unsigned long flags,
591 static inline int security_sb_umount(struct vfsmount *mnt, int flags)
596 static inline int security_sb_pivotroot(const struct path *old_path,
597 const struct path *new_path)
602 static inline int security_sb_set_mnt_opts(struct super_block *sb,
603 struct security_mnt_opts *opts,
604 unsigned long kern_flags,
605 unsigned long *set_kern_flags)
610 static inline int security_sb_clone_mnt_opts(const struct super_block *oldsb,
611 struct super_block *newsb,
612 unsigned long kern_flags,
613 unsigned long *set_kern_flags)
618 static inline int security_sb_parse_opts_str(char *options, struct security_mnt_opts *opts)
623 static inline int security_inode_alloc(struct inode *inode)
628 static inline void security_inode_free(struct inode *inode)
631 static inline int security_dentry_init_security(struct dentry *dentry,
633 const struct qstr *name,
640 static inline int security_dentry_create_files_as(struct dentry *dentry,
641 int mode, struct qstr *name,
642 const struct cred *old,
649 static inline int security_inode_init_security(struct inode *inode,
651 const struct qstr *qstr,
652 const initxattrs xattrs,
658 static inline int security_old_inode_init_security(struct inode *inode,
660 const struct qstr *qstr,
662 void **value, size_t *len)
667 static inline int security_inode_create(struct inode *dir,
668 struct dentry *dentry,
674 static inline int security_inode_link(struct dentry *old_dentry,
676 struct dentry *new_dentry)
681 static inline int security_inode_unlink(struct inode *dir,
682 struct dentry *dentry)
687 static inline int security_inode_symlink(struct inode *dir,
688 struct dentry *dentry,
689 const char *old_name)
694 static inline int security_inode_mkdir(struct inode *dir,
695 struct dentry *dentry,
701 static inline int security_inode_rmdir(struct inode *dir,
702 struct dentry *dentry)
707 static inline int security_inode_mknod(struct inode *dir,
708 struct dentry *dentry,
714 static inline int security_inode_rename(struct inode *old_dir,
715 struct dentry *old_dentry,
716 struct inode *new_dir,
717 struct dentry *new_dentry,
723 static inline int security_inode_readlink(struct dentry *dentry)
728 static inline int security_inode_follow_link(struct dentry *dentry,
735 static inline int security_inode_permission(struct inode *inode, int mask)
740 static inline int security_inode_setattr(struct dentry *dentry,
746 static inline int security_inode_getattr(const struct path *path)
751 static inline int security_inode_setxattr(struct dentry *dentry,
752 const char *name, const void *value, size_t size, int flags)
754 return cap_inode_setxattr(dentry, name, value, size, flags);
757 static inline void security_inode_post_setxattr(struct dentry *dentry,
758 const char *name, const void *value, size_t size, int flags)
761 static inline int security_inode_getxattr(struct dentry *dentry,
767 static inline int security_inode_listxattr(struct dentry *dentry)
772 static inline int security_inode_removexattr(struct dentry *dentry,
775 return cap_inode_removexattr(dentry, name);
778 static inline int security_inode_need_killpriv(struct dentry *dentry)
780 return cap_inode_need_killpriv(dentry);
783 static inline int security_inode_killpriv(struct dentry *dentry)
785 return cap_inode_killpriv(dentry);
788 static inline int security_inode_getsecurity(struct inode *inode, const char *name, void **buffer, bool alloc)
793 static inline int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags)
798 static inline int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size)
803 static inline void security_inode_getsecid(struct inode *inode, u32 *secid)
808 static inline int security_inode_copy_up(struct dentry *src, struct cred **new)
813 static inline int security_inode_copy_up_xattr(const char *name)
818 static inline int security_file_permission(struct file *file, int mask)
823 static inline int security_file_alloc(struct file *file)
828 static inline void security_file_free(struct file *file)
831 static inline int security_file_ioctl(struct file *file, unsigned int cmd,
837 static inline int security_mmap_file(struct file *file, unsigned long prot,
843 static inline int security_mmap_addr(unsigned long addr)
845 return cap_mmap_addr(addr);
848 static inline int security_file_mprotect(struct vm_area_struct *vma,
849 unsigned long reqprot,
855 static inline int security_file_lock(struct file *file, unsigned int cmd)
860 static inline int security_file_fcntl(struct file *file, unsigned int cmd,
866 static inline void security_file_set_fowner(struct file *file)
871 static inline int security_file_send_sigiotask(struct task_struct *tsk,
872 struct fown_struct *fown,
878 static inline int security_file_receive(struct file *file)
883 static inline int security_file_open(struct file *file)
888 static inline int security_task_alloc(struct task_struct *task,
889 unsigned long clone_flags)
894 static inline void security_task_free(struct task_struct *task)
897 static inline int security_cred_alloc_blank(struct cred *cred, gfp_t gfp)
902 static inline void security_cred_free(struct cred *cred)
905 static inline int security_prepare_creds(struct cred *new,
906 const struct cred *old,
912 static inline void security_transfer_creds(struct cred *new,
913 const struct cred *old)
917 static inline int security_kernel_act_as(struct cred *cred, u32 secid)
922 static inline int security_kernel_create_files_as(struct cred *cred,
928 static inline int security_kernel_module_request(char *kmod_name)
933 static inline int security_kernel_load_data(enum kernel_load_data_id id)
938 static inline int security_kernel_read_file(struct file *file,
939 enum kernel_read_file_id id)
944 static inline int security_kernel_post_read_file(struct file *file,
945 char *buf, loff_t size,
946 enum kernel_read_file_id id)
951 static inline int security_task_fix_setuid(struct cred *new,
952 const struct cred *old,
955 return cap_task_fix_setuid(new, old, flags);
958 static inline int security_task_setpgid(struct task_struct *p, pid_t pgid)
963 static inline int security_task_getpgid(struct task_struct *p)
968 static inline int security_task_getsid(struct task_struct *p)
973 static inline void security_task_getsecid(struct task_struct *p, u32 *secid)
978 static inline int security_task_setnice(struct task_struct *p, int nice)
980 return cap_task_setnice(p, nice);
983 static inline int security_task_setioprio(struct task_struct *p, int ioprio)
985 return cap_task_setioprio(p, ioprio);
988 static inline int security_task_getioprio(struct task_struct *p)
993 static inline int security_task_prlimit(const struct cred *cred,
994 const struct cred *tcred,
1000 static inline int security_task_setrlimit(struct task_struct *p,
1001 unsigned int resource,
1002 struct rlimit *new_rlim)
1007 static inline int security_task_setscheduler(struct task_struct *p)
1009 return cap_task_setscheduler(p);
1012 static inline int security_task_getscheduler(struct task_struct *p)
1017 static inline int security_task_movememory(struct task_struct *p)
1022 static inline int security_task_kill(struct task_struct *p,
1023 struct siginfo *info, int sig,
1024 const struct cred *cred)
1029 static inline int security_task_prctl(int option, unsigned long arg2,
1034 return cap_task_prctl(option, arg2, arg3, arg4, arg5);
1037 static inline void security_task_to_inode(struct task_struct *p, struct inode *inode)
1040 static inline int security_ipc_permission(struct kern_ipc_perm *ipcp,
1046 static inline void security_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid)
1051 static inline int security_msg_msg_alloc(struct msg_msg *msg)
1056 static inline void security_msg_msg_free(struct msg_msg *msg)
1059 static inline int security_msg_queue_alloc(struct kern_ipc_perm *msq)
1064 static inline void security_msg_queue_free(struct kern_ipc_perm *msq)
1067 static inline int security_msg_queue_associate(struct kern_ipc_perm *msq,
1073 static inline int security_msg_queue_msgctl(struct kern_ipc_perm *msq, int cmd)
1078 static inline int security_msg_queue_msgsnd(struct kern_ipc_perm *msq,
1079 struct msg_msg *msg, int msqflg)
1084 static inline int security_msg_queue_msgrcv(struct kern_ipc_perm *msq,
1085 struct msg_msg *msg,
1086 struct task_struct *target,
1087 long type, int mode)
1092 static inline int security_shm_alloc(struct kern_ipc_perm *shp)
1097 static inline void security_shm_free(struct kern_ipc_perm *shp)
1100 static inline int security_shm_associate(struct kern_ipc_perm *shp,
1106 static inline int security_shm_shmctl(struct kern_ipc_perm *shp, int cmd)
1111 static inline int security_shm_shmat(struct kern_ipc_perm *shp,
1112 char __user *shmaddr, int shmflg)
1117 static inline int security_sem_alloc(struct kern_ipc_perm *sma)
1122 static inline void security_sem_free(struct kern_ipc_perm *sma)
1125 static inline int security_sem_associate(struct kern_ipc_perm *sma, int semflg)
1130 static inline int security_sem_semctl(struct kern_ipc_perm *sma, int cmd)
1135 static inline int security_sem_semop(struct kern_ipc_perm *sma,
1136 struct sembuf *sops, unsigned nsops,
1142 static inline void security_d_instantiate(struct dentry *dentry, struct inode *inode)
1145 static inline int security_getprocattr(struct task_struct *p, char *name, char **value)
1150 static inline int security_setprocattr(char *name, void *value, size_t size)
1155 static inline int security_netlink_send(struct sock *sk, struct sk_buff *skb)
1160 static inline int security_ismaclabel(const char *name)
1165 static inline int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen)
1170 static inline int security_secctx_to_secid(const char *secdata,
1177 static inline void security_release_secctx(char *secdata, u32 seclen)
1181 static inline void security_inode_invalidate_secctx(struct inode *inode)
1185 static inline int security_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen)
1189 static inline int security_inode_setsecctx(struct dentry *dentry, void *ctx, u32 ctxlen)
1193 static inline int security_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen)
1197 #endif /* CONFIG_SECURITY */
1199 #ifdef CONFIG_SECURITY_NETWORK
1201 int security_unix_stream_connect(struct sock *sock, struct sock *other, struct sock *newsk);
1202 int security_unix_may_send(struct socket *sock, struct socket *other);
1203 int security_socket_create(int family, int type, int protocol, int kern);
1204 int security_socket_post_create(struct socket *sock, int family,
1205 int type, int protocol, int kern);
1206 int security_socket_socketpair(struct socket *socka, struct socket *sockb);
1207 int security_socket_bind(struct socket *sock, struct sockaddr *address, int addrlen);
1208 int security_socket_connect(struct socket *sock, struct sockaddr *address, int addrlen);
1209 int security_socket_listen(struct socket *sock, int backlog);
1210 int security_socket_accept(struct socket *sock, struct socket *newsock);
1211 int security_socket_sendmsg(struct socket *sock, struct msghdr *msg, int size);
1212 int security_socket_recvmsg(struct socket *sock, struct msghdr *msg,
1213 int size, int flags);
1214 int security_socket_getsockname(struct socket *sock);
1215 int security_socket_getpeername(struct socket *sock);
1216 int security_socket_getsockopt(struct socket *sock, int level, int optname);
1217 int security_socket_setsockopt(struct socket *sock, int level, int optname);
1218 int security_socket_shutdown(struct socket *sock, int how);
1219 int security_sock_rcv_skb(struct sock *sk, struct sk_buff *skb);
1220 int security_socket_getpeersec_stream(struct socket *sock, char __user *optval,
1221 int __user *optlen, unsigned len);
1222 int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid);
1223 int security_sk_alloc(struct sock *sk, int family, gfp_t priority);
1224 void security_sk_free(struct sock *sk);
1225 void security_sk_clone(const struct sock *sk, struct sock *newsk);
1226 void security_sk_classify_flow(struct sock *sk, struct flowi *fl);
1227 void security_req_classify_flow(const struct request_sock *req, struct flowi *fl);
1228 void security_sock_graft(struct sock*sk, struct socket *parent);
1229 int security_inet_conn_request(struct sock *sk,
1230 struct sk_buff *skb, struct request_sock *req);
1231 void security_inet_csk_clone(struct sock *newsk,
1232 const struct request_sock *req);
1233 void security_inet_conn_established(struct sock *sk,
1234 struct sk_buff *skb);
1235 int security_secmark_relabel_packet(u32 secid);
1236 void security_secmark_refcount_inc(void);
1237 void security_secmark_refcount_dec(void);
1238 int security_tun_dev_alloc_security(void **security);
1239 void security_tun_dev_free_security(void *security);
1240 int security_tun_dev_create(void);
1241 int security_tun_dev_attach_queue(void *security);
1242 int security_tun_dev_attach(struct sock *sk, void *security);
1243 int security_tun_dev_open(void *security);
1244 int security_sctp_assoc_request(struct sctp_endpoint *ep, struct sk_buff *skb);
1245 int security_sctp_bind_connect(struct sock *sk, int optname,
1246 struct sockaddr *address, int addrlen);
1247 void security_sctp_sk_clone(struct sctp_endpoint *ep, struct sock *sk,
1248 struct sock *newsk);
1250 #else /* CONFIG_SECURITY_NETWORK */
1251 static inline int security_unix_stream_connect(struct sock *sock,
1258 static inline int security_unix_may_send(struct socket *sock,
1259 struct socket *other)
1264 static inline int security_socket_create(int family, int type,
1265 int protocol, int kern)
1270 static inline int security_socket_post_create(struct socket *sock,
1273 int protocol, int kern)
1278 static inline int security_socket_socketpair(struct socket *socka,
1279 struct socket *sockb)
1284 static inline int security_socket_bind(struct socket *sock,
1285 struct sockaddr *address,
1291 static inline int security_socket_connect(struct socket *sock,
1292 struct sockaddr *address,
1298 static inline int security_socket_listen(struct socket *sock, int backlog)
1303 static inline int security_socket_accept(struct socket *sock,
1304 struct socket *newsock)
1309 static inline int security_socket_sendmsg(struct socket *sock,
1310 struct msghdr *msg, int size)
1315 static inline int security_socket_recvmsg(struct socket *sock,
1316 struct msghdr *msg, int size,
1322 static inline int security_socket_getsockname(struct socket *sock)
1327 static inline int security_socket_getpeername(struct socket *sock)
1332 static inline int security_socket_getsockopt(struct socket *sock,
1333 int level, int optname)
1338 static inline int security_socket_setsockopt(struct socket *sock,
1339 int level, int optname)
1344 static inline int security_socket_shutdown(struct socket *sock, int how)
1348 static inline int security_sock_rcv_skb(struct sock *sk,
1349 struct sk_buff *skb)
1354 static inline int security_socket_getpeersec_stream(struct socket *sock, char __user *optval,
1355 int __user *optlen, unsigned len)
1357 return -ENOPROTOOPT;
1360 static inline int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid)
1362 return -ENOPROTOOPT;
1365 static inline int security_sk_alloc(struct sock *sk, int family, gfp_t priority)
1370 static inline void security_sk_free(struct sock *sk)
1374 static inline void security_sk_clone(const struct sock *sk, struct sock *newsk)
1378 static inline void security_sk_classify_flow(struct sock *sk, struct flowi *fl)
1382 static inline void security_req_classify_flow(const struct request_sock *req, struct flowi *fl)
1386 static inline void security_sock_graft(struct sock *sk, struct socket *parent)
1390 static inline int security_inet_conn_request(struct sock *sk,
1391 struct sk_buff *skb, struct request_sock *req)
1396 static inline void security_inet_csk_clone(struct sock *newsk,
1397 const struct request_sock *req)
1401 static inline void security_inet_conn_established(struct sock *sk,
1402 struct sk_buff *skb)
1406 static inline int security_secmark_relabel_packet(u32 secid)
1411 static inline void security_secmark_refcount_inc(void)
1415 static inline void security_secmark_refcount_dec(void)
1419 static inline int security_tun_dev_alloc_security(void **security)
1424 static inline void security_tun_dev_free_security(void *security)
1428 static inline int security_tun_dev_create(void)
1433 static inline int security_tun_dev_attach_queue(void *security)
1438 static inline int security_tun_dev_attach(struct sock *sk, void *security)
1443 static inline int security_tun_dev_open(void *security)
1448 static inline int security_sctp_assoc_request(struct sctp_endpoint *ep,
1449 struct sk_buff *skb)
1454 static inline int security_sctp_bind_connect(struct sock *sk, int optname,
1455 struct sockaddr *address,
1461 static inline void security_sctp_sk_clone(struct sctp_endpoint *ep,
1466 #endif /* CONFIG_SECURITY_NETWORK */
1468 #ifdef CONFIG_SECURITY_INFINIBAND
1469 int security_ib_pkey_access(void *sec, u64 subnet_prefix, u16 pkey);
1470 int security_ib_endport_manage_subnet(void *sec, const char *name, u8 port_num);
1471 int security_ib_alloc_security(void **sec);
1472 void security_ib_free_security(void *sec);
1473 #else /* CONFIG_SECURITY_INFINIBAND */
1474 static inline int security_ib_pkey_access(void *sec, u64 subnet_prefix, u16 pkey)
1479 static inline int security_ib_endport_manage_subnet(void *sec, const char *dev_name, u8 port_num)
1484 static inline int security_ib_alloc_security(void **sec)
1489 static inline void security_ib_free_security(void *sec)
1492 #endif /* CONFIG_SECURITY_INFINIBAND */
1494 #ifdef CONFIG_SECURITY_NETWORK_XFRM
1496 int security_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp,
1497 struct xfrm_user_sec_ctx *sec_ctx, gfp_t gfp);
1498 int security_xfrm_policy_clone(struct xfrm_sec_ctx *old_ctx, struct xfrm_sec_ctx **new_ctxp);
1499 void security_xfrm_policy_free(struct xfrm_sec_ctx *ctx);
1500 int security_xfrm_policy_delete(struct xfrm_sec_ctx *ctx);
1501 int security_xfrm_state_alloc(struct xfrm_state *x, struct xfrm_user_sec_ctx *sec_ctx);
1502 int security_xfrm_state_alloc_acquire(struct xfrm_state *x,
1503 struct xfrm_sec_ctx *polsec, u32 secid);
1504 int security_xfrm_state_delete(struct xfrm_state *x);
1505 void security_xfrm_state_free(struct xfrm_state *x);
1506 int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir);
1507 int security_xfrm_state_pol_flow_match(struct xfrm_state *x,
1508 struct xfrm_policy *xp,
1509 const struct flowi *fl);
1510 int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid);
1511 void security_skb_classify_flow(struct sk_buff *skb, struct flowi *fl);
1513 #else /* CONFIG_SECURITY_NETWORK_XFRM */
1515 static inline int security_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp,
1516 struct xfrm_user_sec_ctx *sec_ctx,
1522 static inline int security_xfrm_policy_clone(struct xfrm_sec_ctx *old, struct xfrm_sec_ctx **new_ctxp)
1527 static inline void security_xfrm_policy_free(struct xfrm_sec_ctx *ctx)
1531 static inline int security_xfrm_policy_delete(struct xfrm_sec_ctx *ctx)
1536 static inline int security_xfrm_state_alloc(struct xfrm_state *x,
1537 struct xfrm_user_sec_ctx *sec_ctx)
1542 static inline int security_xfrm_state_alloc_acquire(struct xfrm_state *x,
1543 struct xfrm_sec_ctx *polsec, u32 secid)
1548 static inline void security_xfrm_state_free(struct xfrm_state *x)
1552 static inline int security_xfrm_state_delete(struct xfrm_state *x)
1557 static inline int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir)
1562 static inline int security_xfrm_state_pol_flow_match(struct xfrm_state *x,
1563 struct xfrm_policy *xp, const struct flowi *fl)
1568 static inline int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid)
1573 static inline void security_skb_classify_flow(struct sk_buff *skb, struct flowi *fl)
1577 #endif /* CONFIG_SECURITY_NETWORK_XFRM */
1579 #ifdef CONFIG_SECURITY_PATH
1580 int security_path_unlink(const struct path *dir, struct dentry *dentry);
1581 int security_path_mkdir(const struct path *dir, struct dentry *dentry, umode_t mode);
1582 int security_path_rmdir(const struct path *dir, struct dentry *dentry);
1583 int security_path_mknod(const struct path *dir, struct dentry *dentry, umode_t mode,
1585 int security_path_truncate(const struct path *path);
1586 int security_path_symlink(const struct path *dir, struct dentry *dentry,
1587 const char *old_name);
1588 int security_path_link(struct dentry *old_dentry, const struct path *new_dir,
1589 struct dentry *new_dentry);
1590 int security_path_rename(const struct path *old_dir, struct dentry *old_dentry,
1591 const struct path *new_dir, struct dentry *new_dentry,
1592 unsigned int flags);
1593 int security_path_chmod(const struct path *path, umode_t mode);
1594 int security_path_chown(const struct path *path, kuid_t uid, kgid_t gid);
1595 int security_path_chroot(const struct path *path);
1596 #else /* CONFIG_SECURITY_PATH */
1597 static inline int security_path_unlink(const struct path *dir, struct dentry *dentry)
1602 static inline int security_path_mkdir(const struct path *dir, struct dentry *dentry,
1608 static inline int security_path_rmdir(const struct path *dir, struct dentry *dentry)
1613 static inline int security_path_mknod(const struct path *dir, struct dentry *dentry,
1614 umode_t mode, unsigned int dev)
1619 static inline int security_path_truncate(const struct path *path)
1624 static inline int security_path_symlink(const struct path *dir, struct dentry *dentry,
1625 const char *old_name)
1630 static inline int security_path_link(struct dentry *old_dentry,
1631 const struct path *new_dir,
1632 struct dentry *new_dentry)
1637 static inline int security_path_rename(const struct path *old_dir,
1638 struct dentry *old_dentry,
1639 const struct path *new_dir,
1640 struct dentry *new_dentry,
1646 static inline int security_path_chmod(const struct path *path, umode_t mode)
1651 static inline int security_path_chown(const struct path *path, kuid_t uid, kgid_t gid)
1656 static inline int security_path_chroot(const struct path *path)
1660 #endif /* CONFIG_SECURITY_PATH */
1663 #ifdef CONFIG_SECURITY
1665 int security_key_alloc(struct key *key, const struct cred *cred, unsigned long flags);
1666 void security_key_free(struct key *key);
1667 int security_key_permission(key_ref_t key_ref,
1668 const struct cred *cred, unsigned perm);
1669 int security_key_getsecurity(struct key *key, char **_buffer);
1673 static inline int security_key_alloc(struct key *key,
1674 const struct cred *cred,
1675 unsigned long flags)
1680 static inline void security_key_free(struct key *key)
1684 static inline int security_key_permission(key_ref_t key_ref,
1685 const struct cred *cred,
1691 static inline int security_key_getsecurity(struct key *key, char **_buffer)
1698 #endif /* CONFIG_KEYS */
1701 #ifdef CONFIG_SECURITY
1702 int security_audit_rule_init(u32 field, u32 op, char *rulestr, void **lsmrule);
1703 int security_audit_rule_known(struct audit_krule *krule);
1704 int security_audit_rule_match(u32 secid, u32 field, u32 op, void *lsmrule,
1705 struct audit_context *actx);
1706 void security_audit_rule_free(void *lsmrule);
1710 static inline int security_audit_rule_init(u32 field, u32 op, char *rulestr,
1716 static inline int security_audit_rule_known(struct audit_krule *krule)
1721 static inline int security_audit_rule_match(u32 secid, u32 field, u32 op,
1722 void *lsmrule, struct audit_context *actx)
1727 static inline void security_audit_rule_free(void *lsmrule)
1730 #endif /* CONFIG_SECURITY */
1731 #endif /* CONFIG_AUDIT */
1733 #ifdef CONFIG_SECURITYFS
1735 extern struct dentry *securityfs_create_file(const char *name, umode_t mode,
1736 struct dentry *parent, void *data,
1737 const struct file_operations *fops);
1738 extern struct dentry *securityfs_create_dir(const char *name, struct dentry *parent);
1739 struct dentry *securityfs_create_symlink(const char *name,
1740 struct dentry *parent,
1742 const struct inode_operations *iops);
1743 extern void securityfs_remove(struct dentry *dentry);
1745 #else /* CONFIG_SECURITYFS */
1747 static inline struct dentry *securityfs_create_dir(const char *name,
1748 struct dentry *parent)
1750 return ERR_PTR(-ENODEV);
1753 static inline struct dentry *securityfs_create_file(const char *name,
1755 struct dentry *parent,
1757 const struct file_operations *fops)
1759 return ERR_PTR(-ENODEV);
1762 static inline struct dentry *securityfs_create_symlink(const char *name,
1763 struct dentry *parent,
1765 const struct inode_operations *iops)
1767 return ERR_PTR(-ENODEV);
1770 static inline void securityfs_remove(struct dentry *dentry)
1775 #ifdef CONFIG_BPF_SYSCALL
1779 struct bpf_prog_aux;
1780 #ifdef CONFIG_SECURITY
1781 extern int security_bpf(int cmd, union bpf_attr *attr, unsigned int size);
1782 extern int security_bpf_map(struct bpf_map *map, fmode_t fmode);
1783 extern int security_bpf_prog(struct bpf_prog *prog);
1784 extern int security_bpf_map_alloc(struct bpf_map *map);
1785 extern void security_bpf_map_free(struct bpf_map *map);
1786 extern int security_bpf_prog_alloc(struct bpf_prog_aux *aux);
1787 extern void security_bpf_prog_free(struct bpf_prog_aux *aux);
1789 static inline int security_bpf(int cmd, union bpf_attr *attr,
1795 static inline int security_bpf_map(struct bpf_map *map, fmode_t fmode)
1800 static inline int security_bpf_prog(struct bpf_prog *prog)
1805 static inline int security_bpf_map_alloc(struct bpf_map *map)
1810 static inline void security_bpf_map_free(struct bpf_map *map)
1813 static inline int security_bpf_prog_alloc(struct bpf_prog_aux *aux)
1818 static inline void security_bpf_prog_free(struct bpf_prog_aux *aux)
1820 #endif /* CONFIG_SECURITY */
1821 #endif /* CONFIG_BPF_SYSCALL */
1823 #ifdef CONFIG_SECURITY
1825 static inline char *alloc_secdata(void)
1827 return (char *)get_zeroed_page(GFP_KERNEL);
1830 static inline void free_secdata(void *secdata)
1832 free_page((unsigned long)secdata);
1837 static inline char *alloc_secdata(void)
1842 static inline void free_secdata(void *secdata)
1844 #endif /* CONFIG_SECURITY */
1846 #endif /* ! __LINUX_SECURITY_H */