1/*
2 * Linux Security plug
3 *
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
10 *
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.
15 *
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.
20 *
21 */
22
23#ifndef __LINUX_SECURITY_H
24#define __LINUX_SECURITY_H
25
26#include <linux/kernel_read_file.h>
27#include <linux/key.h>
28#include <linux/capability.h>
29#include <linux/fs.h>
30#include <linux/slab.h>
31#include <linux/err.h>
32#include <linux/string.h>
33#include <linux/mm.h>
34#include <linux/sockptr.h>
35
36struct linux_binprm;
37struct cred;
38struct rlimit;
39struct kernel_siginfo;
40struct sembuf;
41struct kern_ipc_perm;
42struct audit_context;
43struct super_block;
44struct inode;
45struct dentry;
46struct file;
47struct vfsmount;
48struct path;
49struct qstr;
50struct iattr;
51struct fown_struct;
52struct file_operations;
53struct msg_msg;
54struct xattr;
55struct kernfs_node;
56struct xfrm_sec_ctx;
57struct mm_struct;
58struct fs_context;
59struct fs_parameter;
60enum fs_value_type;
61struct watch;
62struct watch_notification;
63
64/* Default (no) options for the capable function */
65#define CAP_OPT_NONE 0x0
66/* If capable should audit the security request */
67#define CAP_OPT_NOAUDIT BIT(1)
68/* If capable is being called by a setid function */
69#define CAP_OPT_INSETID BIT(2)
70
71/* LSM Agnostic defines for security_sb_set_mnt_opts() flags */
72#define SECURITY_LSM_NATIVE_LABELS 1
73
74struct ctl_table;
75struct audit_krule;
76struct user_namespace;
77struct timezone;
78
79enum lsm_event {
80 LSM_POLICY_CHANGE,
81};
82
83/*
84 * These are reasons that can be passed to the security_locked_down()
85 * LSM hook. Lockdown reasons that protect kernel integrity (ie, the
86 * ability for userland to modify kernel code) are placed before
87 * LOCKDOWN_INTEGRITY_MAX. Lockdown reasons that protect kernel
88 * confidentiality (ie, the ability for userland to extract
89 * information from the running kernel that would otherwise be
90 * restricted) are placed before LOCKDOWN_CONFIDENTIALITY_MAX.
91 *
92 * LSM authors should note that the semantics of any given lockdown
93 * reason are not guaranteed to be stable - the same reason may block
94 * one set of features in one kernel release, and a slightly different
95 * set of features in a later kernel release. LSMs that seek to expose
96 * lockdown policy at any level of granularity other than "none",
97 * "integrity" or "confidentiality" are responsible for either
98 * ensuring that they expose a consistent level of functionality to
99 * userland, or ensuring that userland is aware that this is
100 * potentially a moving target. It is easy to misuse this information
101 * in a way that could break userspace. Please be careful not to do
102 * so.
103 *
104 * If you add to this, remember to extend lockdown_reasons in
105 * security/lockdown/lockdown.c.
106 */
107enum lockdown_reason {
108 LOCKDOWN_NONE,
109 LOCKDOWN_MODULE_SIGNATURE,
110 LOCKDOWN_DEV_MEM,
111 LOCKDOWN_EFI_TEST,
112 LOCKDOWN_KEXEC,
113 LOCKDOWN_HIBERNATION,
114 LOCKDOWN_PCI_ACCESS,
115 LOCKDOWN_IOPORT,
116 LOCKDOWN_MSR,
117 LOCKDOWN_ACPI_TABLES,
118 LOCKDOWN_DEVICE_TREE,
119 LOCKDOWN_PCMCIA_CIS,
120 LOCKDOWN_TIOCSSERIAL,
121 LOCKDOWN_MODULE_PARAMETERS,
122 LOCKDOWN_MMIOTRACE,
123 LOCKDOWN_DEBUGFS,
124 LOCKDOWN_XMON_WR,
125 LOCKDOWN_BPF_WRITE_USER,
126 LOCKDOWN_DBG_WRITE_KERNEL,
127 LOCKDOWN_RTAS_ERROR_INJECTION,
128 LOCKDOWN_INTEGRITY_MAX,
129 LOCKDOWN_KCORE,
130 LOCKDOWN_KPROBES,
131 LOCKDOWN_BPF_READ_KERNEL,
132 LOCKDOWN_DBG_READ_KERNEL,
133 LOCKDOWN_PERF,
134 LOCKDOWN_TRACEFS,
135 LOCKDOWN_XMON_RW,
136 LOCKDOWN_XFRM_SECRET,
137 LOCKDOWN_CONFIDENTIALITY_MAX,
138};
139
140extern const char *const lockdown_reasons[LOCKDOWN_CONFIDENTIALITY_MAX+1];
141
142/* These functions are in security/commoncap.c */
143extern int cap_capable(const struct cred *cred, struct user_namespace *ns,
144 int cap, unsigned int opts);
145extern int cap_settime(const struct timespec64 *ts, const struct timezone *tz);
146extern int cap_ptrace_access_check(struct task_struct *child, unsigned int mode);
147extern int cap_ptrace_traceme(struct task_struct *parent);
148extern int cap_capget(const struct task_struct *target, kernel_cap_t *effective,
149 kernel_cap_t *inheritable, kernel_cap_t *permitted);
150extern int cap_capset(struct cred *new, const struct cred *old,
151 const kernel_cap_t *effective,
152 const kernel_cap_t *inheritable,
153 const kernel_cap_t *permitted);
154extern int cap_bprm_creds_from_file(struct linux_binprm *bprm, const struct file *file);
155int cap_inode_setxattr(struct dentry *dentry, const char *name,
156 const void *value, size_t size, int flags);
157int cap_inode_removexattr(struct mnt_idmap *idmap,
158 struct dentry *dentry, const char *name);
159int cap_inode_need_killpriv(struct dentry *dentry);
160int cap_inode_killpriv(struct mnt_idmap *idmap, struct dentry *dentry);
161int cap_inode_getsecurity(struct mnt_idmap *idmap,
162 struct inode *inode, const char *name, void **buffer,
163 bool alloc);
164extern int cap_mmap_addr(unsigned long addr);
165extern int cap_mmap_file(struct file *file, unsigned long reqprot,
166 unsigned long prot, unsigned long flags);
167extern int cap_task_fix_setuid(struct cred *new, const struct cred *old, int flags);
168extern int cap_task_prctl(int option, unsigned long arg2, unsigned long arg3,
169 unsigned long arg4, unsigned long arg5);
170extern int cap_task_setscheduler(struct task_struct *p);
171extern int cap_task_setioprio(struct task_struct *p, int ioprio);
172extern int cap_task_setnice(struct task_struct *p, int nice);
173extern int cap_vm_enough_memory(struct mm_struct *mm, long pages);
174
175struct msghdr;
176struct sk_buff;
177struct sock;
178struct sockaddr;
179struct socket;
180struct flowi_common;
181struct dst_entry;
182struct xfrm_selector;
183struct xfrm_policy;
184struct xfrm_state;
185struct xfrm_user_sec_ctx;
186struct seq_file;
187struct sctp_association;
188
189#ifdef CONFIG_MMU
190extern unsigned long mmap_min_addr;
191extern unsigned long dac_mmap_min_addr;
192#else
193#define mmap_min_addr 0UL
194#define dac_mmap_min_addr 0UL
195#endif
196
197/*
198 * Values used in the task_security_ops calls
199 */
200/* setuid or setgid, id0 == uid or gid */
201#define LSM_SETID_ID 1
202
203/* setreuid or setregid, id0 == real, id1 == eff */
204#define LSM_SETID_RE 2
205
206/* setresuid or setresgid, id0 == real, id1 == eff, uid2 == saved */
207#define LSM_SETID_RES 4
208
209/* setfsuid or setfsgid, id0 == fsuid or fsgid */
210#define LSM_SETID_FS 8
211
212/* Flags for security_task_prlimit(). */
213#define LSM_PRLIMIT_READ 1
214#define LSM_PRLIMIT_WRITE 2
215
216/* forward declares to avoid warnings */
217struct sched_param;
218struct request_sock;
219
220/* bprm->unsafe reasons */
221#define LSM_UNSAFE_SHARE 1
222#define LSM_UNSAFE_PTRACE 2
223#define LSM_UNSAFE_NO_NEW_PRIVS 4
224
225#ifdef CONFIG_MMU
226extern int mmap_min_addr_handler(struct ctl_table *table, int write,
227 void *buffer, size_t *lenp, loff_t *ppos);
228#endif
229
230/* security_inode_init_security callback function to write xattrs */
231typedef int (*initxattrs) (struct inode *inode,
232 const struct xattr *xattr_array, void *fs_data);
233
234
235/* Keep the kernel_load_data_id enum in sync with kernel_read_file_id */
236#define __data_id_enumify(ENUM, dummy) LOADING_ ## ENUM,
237#define __data_id_stringify(dummy, str) #str,
238
239enum kernel_load_data_id {
240 __kernel_read_file_id(__data_id_enumify)
241};
242
243static const char * const kernel_load_data_str[] = {
244 __kernel_read_file_id(__data_id_stringify)
245};
246
247static inline const char *kernel_load_data_id_str(enum kernel_load_data_id id)
248{
249 if ((unsigned)id >= LOADING_MAX_ID)
250 return kernel_load_data_str[LOADING_UNKNOWN];
251
252 return kernel_load_data_str[id];
253}
254
255#ifdef CONFIG_SECURITY
256
257int call_blocking_lsm_notifier(enum lsm_event event, void *data);
258int register_blocking_lsm_notifier(struct notifier_block *nb);
259int unregister_blocking_lsm_notifier(struct notifier_block *nb);
260
261/* prototypes */
262extern int security_init(void);
263extern int early_security_init(void);
264
265/* Security operations */
266int security_binder_set_context_mgr(const struct cred *mgr);
267int security_binder_transaction(const struct cred *from,
268 const struct cred *to);
269int security_binder_transfer_binder(const struct cred *from,
270 const struct cred *to);
271int security_binder_transfer_file(const struct cred *from,
272 const struct cred *to, const struct file *file);
273int security_ptrace_access_check(struct task_struct *child, unsigned int mode);
274int security_ptrace_traceme(struct task_struct *parent);
275int security_capget(const struct task_struct *target,
276 kernel_cap_t *effective,
277 kernel_cap_t *inheritable,
278 kernel_cap_t *permitted);
279int security_capset(struct cred *new, const struct cred *old,
280 const kernel_cap_t *effective,
281 const kernel_cap_t *inheritable,
282 const kernel_cap_t *permitted);
283int security_capable(const struct cred *cred,
284 struct user_namespace *ns,
285 int cap,
286 unsigned int opts);
287int security_quotactl(int cmds, int type, int id, const struct super_block *sb);
288int security_quota_on(struct dentry *dentry);
289int security_syslog(int type);
290int security_settime64(const struct timespec64 *ts, const struct timezone *tz);
291int security_vm_enough_memory_mm(struct mm_struct *mm, long pages);
292int security_bprm_creds_for_exec(struct linux_binprm *bprm);
293int security_bprm_creds_from_file(struct linux_binprm *bprm, const struct file *file);
294int security_bprm_check(struct linux_binprm *bprm);
295void security_bprm_committing_creds(const struct linux_binprm *bprm);
296void security_bprm_committed_creds(const struct linux_binprm *bprm);
297int security_fs_context_submount(struct fs_context *fc, struct super_block *reference);
298int security_fs_context_dup(struct fs_context *fc, struct fs_context *src_fc);
299int security_fs_context_parse_param(struct fs_context *fc, struct fs_parameter *param);
300int security_sb_alloc(struct super_block *sb);
301void security_sb_delete(struct super_block *sb);
302void security_sb_free(struct super_block *sb);
303void security_free_mnt_opts(void **mnt_opts);
304int security_sb_eat_lsm_opts(char *options, void **mnt_opts);
305int security_sb_mnt_opts_compat(struct super_block *sb, void *mnt_opts);
306int security_sb_remount(struct super_block *sb, void *mnt_opts);
307int security_sb_kern_mount(const struct super_block *sb);
308int security_sb_show_options(struct seq_file *m, struct super_block *sb);
309int security_sb_statfs(struct dentry *dentry);
310int security_sb_mount(const char *dev_name, const struct path *path,
311 const char *type, unsigned long flags, void *data);
312int security_sb_umount(struct vfsmount *mnt, int flags);
313int security_sb_pivotroot(const struct path *old_path, const struct path *new_path);
314int security_sb_set_mnt_opts(struct super_block *sb,
315 void *mnt_opts,
316 unsigned long kern_flags,
317 unsigned long *set_kern_flags);
318int security_sb_clone_mnt_opts(const struct super_block *oldsb,
319 struct super_block *newsb,
320 unsigned long kern_flags,
321 unsigned long *set_kern_flags);
322int security_move_mount(const struct path *from_path, const struct path *to_path);
323int security_dentry_init_security(struct dentry *dentry, int mode,
324 const struct qstr *name,
325 const char **xattr_name, void **ctx,
326 u32 *ctxlen);
327int security_dentry_create_files_as(struct dentry *dentry, int mode,
328 struct qstr *name,
329 const struct cred *old,
330 struct cred *new);
331int security_path_notify(const struct path *path, u64 mask,
332 unsigned int obj_type);
333int security_inode_alloc(struct inode *inode);
334void security_inode_free(struct inode *inode);
335int security_inode_init_security(struct inode *inode, struct inode *dir,
336 const struct qstr *qstr,
337 initxattrs initxattrs, void *fs_data);
338int security_inode_init_security_anon(struct inode *inode,
339 const struct qstr *name,
340 const struct inode *context_inode);
341int security_inode_create(struct inode *dir, struct dentry *dentry, umode_t mode);
342int security_inode_link(struct dentry *old_dentry, struct inode *dir,
343 struct dentry *new_dentry);
344int security_inode_unlink(struct inode *dir, struct dentry *dentry);
345int security_inode_symlink(struct inode *dir, struct dentry *dentry,
346 const char *old_name);
347int security_inode_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode);
348int security_inode_rmdir(struct inode *dir, struct dentry *dentry);
349int security_inode_mknod(struct inode *dir, struct dentry *dentry, umode_t mode, dev_t dev);
350int security_inode_rename(struct inode *old_dir, struct dentry *old_dentry,
351 struct inode *new_dir, struct dentry *new_dentry,
352 unsigned int flags);
353int security_inode_readlink(struct dentry *dentry);
354int security_inode_follow_link(struct dentry *dentry, struct inode *inode,
355 bool rcu);
356int security_inode_permission(struct inode *inode, int mask);
357int security_inode_setattr(struct mnt_idmap *idmap,
358 struct dentry *dentry, struct iattr *attr);
359int security_inode_getattr(const struct path *path);
360int security_inode_setxattr(struct mnt_idmap *idmap,
361 struct dentry *dentry, const char *name,
362 const void *value, size_t size, int flags);
363int security_inode_set_acl(struct mnt_idmap *idmap,
364 struct dentry *dentry, const char *acl_name,
365 struct posix_acl *kacl);
366int security_inode_get_acl(struct mnt_idmap *idmap,
367 struct dentry *dentry, const char *acl_name);
368int security_inode_remove_acl(struct mnt_idmap *idmap,
369 struct dentry *dentry, const char *acl_name);
370void security_inode_post_setxattr(struct dentry *dentry, const char *name,
371 const void *value, size_t size, int flags);
372int security_inode_getxattr(struct dentry *dentry, const char *name);
373int security_inode_listxattr(struct dentry *dentry);
374int security_inode_removexattr(struct mnt_idmap *idmap,
375 struct dentry *dentry, const char *name);
376int security_inode_need_killpriv(struct dentry *dentry);
377int security_inode_killpriv(struct mnt_idmap *idmap, struct dentry *dentry);
378int security_inode_getsecurity(struct mnt_idmap *idmap,
379 struct inode *inode, const char *name,
380 void **buffer, bool alloc);
381int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags);
382int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size);
383void security_inode_getsecid(struct inode *inode, u32 *secid);
384int security_inode_copy_up(struct dentry *src, struct cred **new);
385int security_inode_copy_up_xattr(const char *name);
386int security_kernfs_init_security(struct kernfs_node *kn_dir,
387 struct kernfs_node *kn);
388int security_file_permission(struct file *file, int mask);
389int security_file_alloc(struct file *file);
390void security_file_free(struct file *file);
391int security_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg);
392int security_mmap_file(struct file *file, unsigned long prot,
393 unsigned long flags);
394int security_mmap_addr(unsigned long addr);
395int security_file_mprotect(struct vm_area_struct *vma, unsigned long reqprot,
396 unsigned long prot);
397int security_file_lock(struct file *file, unsigned int cmd);
398int security_file_fcntl(struct file *file, unsigned int cmd, unsigned long arg);
399void security_file_set_fowner(struct file *file);
400int security_file_send_sigiotask(struct task_struct *tsk,
401 struct fown_struct *fown, int sig);
402int security_file_receive(struct file *file);
403int security_file_open(struct file *file);
404int security_file_truncate(struct file *file);
405int security_task_alloc(struct task_struct *task, unsigned long clone_flags);
406void security_task_free(struct task_struct *task);
407int security_cred_alloc_blank(struct cred *cred, gfp_t gfp);
408void security_cred_free(struct cred *cred);
409int security_prepare_creds(struct cred *new, const struct cred *old, gfp_t gfp);
410void security_transfer_creds(struct cred *new, const struct cred *old);
411void security_cred_getsecid(const struct cred *c, u32 *secid);
412int security_kernel_act_as(struct cred *new, u32 secid);
413int security_kernel_create_files_as(struct cred *new, struct inode *inode);
414int security_kernel_module_request(char *kmod_name);
415int security_kernel_load_data(enum kernel_load_data_id id, bool contents);
416int security_kernel_post_load_data(char *buf, loff_t size,
417 enum kernel_load_data_id id,
418 char *description);
419int security_kernel_read_file(struct file *file, enum kernel_read_file_id id,
420 bool contents);
421int security_kernel_post_read_file(struct file *file, char *buf, loff_t size,
422 enum kernel_read_file_id id);
423int security_task_fix_setuid(struct cred *new, const struct cred *old,
424 int flags);
425int security_task_fix_setgid(struct cred *new, const struct cred *old,
426 int flags);
427int security_task_fix_setgroups(struct cred *new, const struct cred *old);
428int security_task_setpgid(struct task_struct *p, pid_t pgid);
429int security_task_getpgid(struct task_struct *p);
430int security_task_getsid(struct task_struct *p);
431void security_current_getsecid_subj(u32 *secid);
432void security_task_getsecid_obj(struct task_struct *p, u32 *secid);
433int security_task_setnice(struct task_struct *p, int nice);
434int security_task_setioprio(struct task_struct *p, int ioprio);
435int security_task_getioprio(struct task_struct *p);
436int security_task_prlimit(const struct cred *cred, const struct cred *tcred,
437 unsigned int flags);
438int security_task_setrlimit(struct task_struct *p, unsigned int resource,
439 struct rlimit *new_rlim);
440int security_task_setscheduler(struct task_struct *p);
441int security_task_getscheduler(struct task_struct *p);
442int security_task_movememory(struct task_struct *p);
443int security_task_kill(struct task_struct *p, struct kernel_siginfo *info,
444 int sig, const struct cred *cred);
445int security_task_prctl(int option, unsigned long arg2, unsigned long arg3,
446 unsigned long arg4, unsigned long arg5);
447void security_task_to_inode(struct task_struct *p, struct inode *inode);
448int security_create_user_ns(const struct cred *cred);
449int security_ipc_permission(struct kern_ipc_perm *ipcp, short flag);
450void security_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid);
451int security_msg_msg_alloc(struct msg_msg *msg);
452void security_msg_msg_free(struct msg_msg *msg);
453int security_msg_queue_alloc(struct kern_ipc_perm *msq);
454void security_msg_queue_free(struct kern_ipc_perm *msq);
455int security_msg_queue_associate(struct kern_ipc_perm *msq, int msqflg);
456int security_msg_queue_msgctl(struct kern_ipc_perm *msq, int cmd);
457int security_msg_queue_msgsnd(struct kern_ipc_perm *msq,
458 struct msg_msg *msg, int msqflg);
459int security_msg_queue_msgrcv(struct kern_ipc_perm *msq, struct msg_msg *msg,
460 struct task_struct *target, long type, int mode);
461int security_shm_alloc(struct kern_ipc_perm *shp);
462void security_shm_free(struct kern_ipc_perm *shp);
463int security_shm_associate(struct kern_ipc_perm *shp, int shmflg);
464int security_shm_shmctl(struct kern_ipc_perm *shp, int cmd);
465int security_shm_shmat(struct kern_ipc_perm *shp, char __user *shmaddr, int shmflg);
466int security_sem_alloc(struct kern_ipc_perm *sma);
467void security_sem_free(struct kern_ipc_perm *sma);
468int security_sem_associate(struct kern_ipc_perm *sma, int semflg);
469int security_sem_semctl(struct kern_ipc_perm *sma, int cmd);
470int security_sem_semop(struct kern_ipc_perm *sma, struct sembuf *sops,
471 unsigned nsops, int alter);
472void security_d_instantiate(struct dentry *dentry, struct inode *inode);
473int security_getprocattr(struct task_struct *p, const char *lsm, const char *name,
474 char **value);
475int security_setprocattr(const char *lsm, const char *name, void *value,
476 size_t size);
477int security_netlink_send(struct sock *sk, struct sk_buff *skb);
478int security_ismaclabel(const char *name);
479int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen);
480int security_secctx_to_secid(const char *secdata, u32 seclen, u32 *secid);
481void security_release_secctx(char *secdata, u32 seclen);
482void security_inode_invalidate_secctx(struct inode *inode);
483int security_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen);
484int security_inode_setsecctx(struct dentry *dentry, void *ctx, u32 ctxlen);
485int security_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen);
486int security_locked_down(enum lockdown_reason what);
487#else /* CONFIG_SECURITY */
488
489static inline int call_blocking_lsm_notifier(enum lsm_event event, void *data)
490{
491 return 0;
492}
493
494static inline int register_blocking_lsm_notifier(struct notifier_block *nb)
495{
496 return 0;
497}
498
499static inline int unregister_blocking_lsm_notifier(struct notifier_block *nb)
500{
501 return 0;
502}
503
504static inline void security_free_mnt_opts(void **mnt_opts)
505{
506}
507
508/*
509 * This is the default capabilities functionality. Most of these functions
510 * are just stubbed out, but a few must call the proper capable code.
511 */
512
513static inline int security_init(void)
514{
515 return 0;
516}
517
518static inline int early_security_init(void)
519{
520 return 0;
521}
522
523static inline int security_binder_set_context_mgr(const struct cred *mgr)
524{
525 return 0;
526}
527
528static inline int security_binder_transaction(const struct cred *from,
529 const struct cred *to)
530{
531 return 0;
532}
533
534static inline int security_binder_transfer_binder(const struct cred *from,
535 const struct cred *to)
536{
537 return 0;
538}
539
540static inline int security_binder_transfer_file(const struct cred *from,
541 const struct cred *to,
542 const struct file *file)
543{
544 return 0;
545}
546
547static inline int security_ptrace_access_check(struct task_struct *child,
548 unsigned int mode)
549{
550 return cap_ptrace_access_check(child, mode);
551}
552
553static inline int security_ptrace_traceme(struct task_struct *parent)
554{
555 return cap_ptrace_traceme(parent);
556}
557
558static inline int security_capget(const struct task_struct *target,
559 kernel_cap_t *effective,
560 kernel_cap_t *inheritable,
561 kernel_cap_t *permitted)
562{
563 return cap_capget(target, effective, inheritable, permitted);
564}
565
566static inline int security_capset(struct cred *new,
567 const struct cred *old,
568 const kernel_cap_t *effective,
569 const kernel_cap_t *inheritable,
570 const kernel_cap_t *permitted)
571{
572 return cap_capset(new, old, effective, inheritable, permitted);
573}
574
575static inline int security_capable(const struct cred *cred,
576 struct user_namespace *ns,
577 int cap,
578 unsigned int opts)
579{
580 return cap_capable(cred, ns, cap, opts);
581}
582
583static inline int security_quotactl(int cmds, int type, int id,
584 const struct super_block *sb)
585{
586 return 0;
587}
588
589static inline int security_quota_on(struct dentry *dentry)
590{
591 return 0;
592}
593
594static inline int security_syslog(int type)
595{
596 return 0;
597}
598
599static inline int security_settime64(const struct timespec64 *ts,
600 const struct timezone *tz)
601{
602 return cap_settime(ts, tz);
603}
604
605static inline int security_vm_enough_memory_mm(struct mm_struct *mm, long pages)
606{
607 return __vm_enough_memory(mm, pages, cap_vm_enough_memory(mm, pages));
608}
609
610static inline int security_bprm_creds_for_exec(struct linux_binprm *bprm)
611{
612 return 0;
613}
614
615static inline int security_bprm_creds_from_file(struct linux_binprm *bprm,
616 const struct file *file)
617{
618 return cap_bprm_creds_from_file(bprm, file);
619}
620
621static inline int security_bprm_check(struct linux_binprm *bprm)
622{
623 return 0;
624}
625
626static inline void security_bprm_committing_creds(const struct linux_binprm *bprm)
627{
628}
629
630static inline void security_bprm_committed_creds(const struct linux_binprm *bprm)
631{
632}
633
634static inline int security_fs_context_submount(struct fs_context *fc,
635 struct super_block *reference)
636{
637 return 0;
638}
639static inline int security_fs_context_dup(struct fs_context *fc,
640 struct fs_context *src_fc)
641{
642 return 0;
643}
644static inline int security_fs_context_parse_param(struct fs_context *fc,
645 struct fs_parameter *param)
646{
647 return -ENOPARAM;
648}
649
650static inline int security_sb_alloc(struct super_block *sb)
651{
652 return 0;
653}
654
655static inline void security_sb_delete(struct super_block *sb)
656{ }
657
658static inline void security_sb_free(struct super_block *sb)
659{ }
660
661static inline int security_sb_eat_lsm_opts(char *options,
662 void **mnt_opts)
663{
664 return 0;
665}
666
667static inline int security_sb_remount(struct super_block *sb,
668 void *mnt_opts)
669{
670 return 0;
671}
672
673static inline int security_sb_mnt_opts_compat(struct super_block *sb,
674 void *mnt_opts)
675{
676 return 0;
677}
678
679
680static inline int security_sb_kern_mount(struct super_block *sb)
681{
682 return 0;
683}
684
685static inline int security_sb_show_options(struct seq_file *m,
686 struct super_block *sb)
687{
688 return 0;
689}
690
691static inline int security_sb_statfs(struct dentry *dentry)
692{
693 return 0;
694}
695
696static inline int security_sb_mount(const char *dev_name, const struct path *path,
697 const char *type, unsigned long flags,
698 void *data)
699{
700 return 0;
701}
702
703static inline int security_sb_umount(struct vfsmount *mnt, int flags)
704{
705 return 0;
706}
707
708static inline int security_sb_pivotroot(const struct path *old_path,
709 const struct path *new_path)
710{
711 return 0;
712}
713
714static inline int security_sb_set_mnt_opts(struct super_block *sb,
715 void *mnt_opts,
716 unsigned long kern_flags,
717 unsigned long *set_kern_flags)
718{
719 return 0;
720}
721
722static inline int security_sb_clone_mnt_opts(const struct super_block *oldsb,
723 struct super_block *newsb,
724 unsigned long kern_flags,
725 unsigned long *set_kern_flags)
726{
727 return 0;
728}
729
730static inline int security_move_mount(const struct path *from_path,
731 const struct path *to_path)
732{
733 return 0;
734}
735
736static inline int security_path_notify(const struct path *path, u64 mask,
737 unsigned int obj_type)
738{
739 return 0;
740}
741
742static inline int security_inode_alloc(struct inode *inode)
743{
744 return 0;
745}
746
747static inline void security_inode_free(struct inode *inode)
748{ }
749
750static inline int security_dentry_init_security(struct dentry *dentry,
751 int mode,
752 const struct qstr *name,
753 const char **xattr_name,
754 void **ctx,
755 u32 *ctxlen)
756{
757 return -EOPNOTSUPP;
758}
759
760static inline int security_dentry_create_files_as(struct dentry *dentry,
761 int mode, struct qstr *name,
762 const struct cred *old,
763 struct cred *new)
764{
765 return 0;
766}
767
768
769static inline int security_inode_init_security(struct inode *inode,
770 struct inode *dir,
771 const struct qstr *qstr,
772 const initxattrs xattrs,
773 void *fs_data)
774{
775 return 0;
776}
777
778static inline int security_inode_init_security_anon(struct inode *inode,
779 const struct qstr *name,
780 const struct inode *context_inode)
781{
782 return 0;
783}
784
785static inline int security_inode_create(struct inode *dir,
786 struct dentry *dentry,
787 umode_t mode)
788{
789 return 0;
790}
791
792static inline int security_inode_link(struct dentry *old_dentry,
793 struct inode *dir,
794 struct dentry *new_dentry)
795{
796 return 0;
797}
798
799static inline int security_inode_unlink(struct inode *dir,
800 struct dentry *dentry)
801{
802 return 0;
803}
804
805static inline int security_inode_symlink(struct inode *dir,
806 struct dentry *dentry,
807 const char *old_name)
808{
809 return 0;
810}
811
812static inline int security_inode_mkdir(struct inode *dir,
813 struct dentry *dentry,
814 int mode)
815{
816 return 0;
817}
818
819static inline int security_inode_rmdir(struct inode *dir,
820 struct dentry *dentry)
821{
822 return 0;
823}
824
825static inline int security_inode_mknod(struct inode *dir,
826 struct dentry *dentry,
827 int mode, dev_t dev)
828{
829 return 0;
830}
831
832static inline int security_inode_rename(struct inode *old_dir,
833 struct dentry *old_dentry,
834 struct inode *new_dir,
835 struct dentry *new_dentry,
836 unsigned int flags)
837{
838 return 0;
839}
840
841static inline int security_inode_readlink(struct dentry *dentry)
842{
843 return 0;
844}
845
846static inline int security_inode_follow_link(struct dentry *dentry,
847 struct inode *inode,
848 bool rcu)
849{
850 return 0;
851}
852
853static inline int security_inode_permission(struct inode *inode, int mask)
854{
855 return 0;
856}
857
858static inline int security_inode_setattr(struct mnt_idmap *idmap,
859 struct dentry *dentry,
860 struct iattr *attr)
861{
862 return 0;
863}
864
865static inline int security_inode_getattr(const struct path *path)
866{
867 return 0;
868}
869
870static inline int security_inode_setxattr(struct mnt_idmap *idmap,
871 struct dentry *dentry, const char *name, const void *value,
872 size_t size, int flags)
873{
874 return cap_inode_setxattr(dentry, name, value, size, flags);
875}
876
877static inline int security_inode_set_acl(struct mnt_idmap *idmap,
878 struct dentry *dentry,
879 const char *acl_name,
880 struct posix_acl *kacl)
881{
882 return 0;
883}
884
885static inline int security_inode_get_acl(struct mnt_idmap *idmap,
886 struct dentry *dentry,
887 const char *acl_name)
888{
889 return 0;
890}
891
892static inline int security_inode_remove_acl(struct mnt_idmap *idmap,
893 struct dentry *dentry,
894 const char *acl_name)
895{
896 return 0;
897}
898
899static inline void security_inode_post_setxattr(struct dentry *dentry,
900 const char *name, const void *value, size_t size, int flags)
901{ }
902
903static inline int security_inode_getxattr(struct dentry *dentry,
904 const char *name)
905{
906 return 0;
907}
908
909static inline int security_inode_listxattr(struct dentry *dentry)
910{
911 return 0;
912}
913
914static inline int security_inode_removexattr(struct mnt_idmap *idmap,
915 struct dentry *dentry,
916 const char *name)
917{
918 return cap_inode_removexattr(idmap, dentry, name);
919}
920
921static inline int security_inode_need_killpriv(struct dentry *dentry)
922{
923 return cap_inode_need_killpriv(dentry);
924}
925
926static inline int security_inode_killpriv(struct mnt_idmap *idmap,
927 struct dentry *dentry)
928{
929 return cap_inode_killpriv(idmap, dentry);
930}
931
932static inline int security_inode_getsecurity(struct mnt_idmap *idmap,
933 struct inode *inode,
934 const char *name, void **buffer,
935 bool alloc)
936{
937 return cap_inode_getsecurity(idmap, inode, name, buffer, alloc);
938}
939
940static inline int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags)
941{
942 return -EOPNOTSUPP;
943}
944
945static inline int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size)
946{
947 return 0;
948}
949
950static inline void security_inode_getsecid(struct inode *inode, u32 *secid)
951{
952 *secid = 0;
953}
954
955static inline int security_inode_copy_up(struct dentry *src, struct cred **new)
956{
957 return 0;
958}
959
960static inline int security_kernfs_init_security(struct kernfs_node *kn_dir,
961 struct kernfs_node *kn)
962{
963 return 0;
964}
965
966static inline int security_inode_copy_up_xattr(const char *name)
967{
968 return -EOPNOTSUPP;
969}
970
971static inline int security_file_permission(struct file *file, int mask)
972{
973 return 0;
974}
975
976static inline int security_file_alloc(struct file *file)
977{
978 return 0;
979}
980
981static inline void security_file_free(struct file *file)
982{ }
983
984static inline int security_file_ioctl(struct file *file, unsigned int cmd,
985 unsigned long arg)
986{
987 return 0;
988}
989
990static inline int security_mmap_file(struct file *file, unsigned long prot,
991 unsigned long flags)
992{
993 return 0;
994}
995
996static inline int security_mmap_addr(unsigned long addr)
997{
998 return cap_mmap_addr(addr);
999}
1000
1001static inline int security_file_mprotect(struct vm_area_struct *vma,
1002 unsigned long reqprot,
1003 unsigned long prot)
1004{
1005 return 0;
1006}
1007
1008static inline int security_file_lock(struct file *file, unsigned int cmd)
1009{
1010 return 0;
1011}
1012
1013static inline int security_file_fcntl(struct file *file, unsigned int cmd,
1014 unsigned long arg)
1015{
1016 return 0;
1017}
1018
1019static inline void security_file_set_fowner(struct file *file)
1020{
1021 return;
1022}
1023
1024static inline int security_file_send_sigiotask(struct task_struct *tsk,
1025 struct fown_struct *fown,
1026 int sig)
1027{
1028 return 0;
1029}
1030
1031static inline int security_file_receive(struct file *file)
1032{
1033 return 0;
1034}
1035
1036static inline int security_file_open(struct file *file)
1037{
1038 return 0;
1039}
1040
1041static inline int security_file_truncate(struct file *file)
1042{
1043 return 0;
1044}
1045
1046static inline int security_task_alloc(struct task_struct *task,
1047 unsigned long clone_flags)
1048{
1049 return 0;
1050}
1051
1052static inline void security_task_free(struct task_struct *task)
1053{ }
1054
1055static inline int security_cred_alloc_blank(struct cred *cred, gfp_t gfp)
1056{
1057 return 0;
1058}
1059
1060static inline void security_cred_free(struct cred *cred)
1061{ }
1062
1063static inline int security_prepare_creds(struct cred *new,
1064 const struct cred *old,
1065 gfp_t gfp)
1066{
1067 return 0;
1068}
1069
1070static inline void security_transfer_creds(struct cred *new,
1071 const struct cred *old)
1072{
1073}
1074
1075static inline void security_cred_getsecid(const struct cred *c, u32 *secid)
1076{
1077 *secid = 0;
1078}
1079
1080static inline int security_kernel_act_as(struct cred *cred, u32 secid)
1081{
1082 return 0;
1083}
1084
1085static inline int security_kernel_create_files_as(struct cred *cred,
1086 struct inode *inode)
1087{
1088 return 0;
1089}
1090
1091static inline int security_kernel_module_request(char *kmod_name)
1092{
1093 return 0;
1094}
1095
1096static inline int security_kernel_load_data(enum kernel_load_data_id id, bool contents)
1097{
1098 return 0;
1099}
1100
1101static inline int security_kernel_post_load_data(char *buf, loff_t size,
1102 enum kernel_load_data_id id,
1103 char *description)
1104{
1105 return 0;
1106}
1107
1108static inline int security_kernel_read_file(struct file *file,
1109 enum kernel_read_file_id id,
1110 bool contents)
1111{
1112 return 0;
1113}
1114
1115static inline int security_kernel_post_read_file(struct file *file,
1116 char *buf, loff_t size,
1117 enum kernel_read_file_id id)
1118{
1119 return 0;
1120}
1121
1122static inline int security_task_fix_setuid(struct cred *new,
1123 const struct cred *old,
1124 int flags)
1125{
1126 return cap_task_fix_setuid(new, old, flags);
1127}
1128
1129static inline int security_task_fix_setgid(struct cred *new,
1130 const struct cred *old,
1131 int flags)
1132{
1133 return 0;
1134}
1135
1136static inline int security_task_fix_setgroups(struct cred *new,
1137 const struct cred *old)
1138{
1139 return 0;
1140}
1141
1142static inline int security_task_setpgid(struct task_struct *p, pid_t pgid)
1143{
1144 return 0;
1145}
1146
1147static inline int security_task_getpgid(struct task_struct *p)
1148{
1149 return 0;
1150}
1151
1152static inline int security_task_getsid(struct task_struct *p)
1153{
1154 return 0;
1155}
1156
1157static inline void security_current_getsecid_subj(u32 *secid)
1158{
1159 *secid = 0;
1160}
1161
1162static inline void security_task_getsecid_obj(struct task_struct *p, u32 *secid)
1163{
1164 *secid = 0;
1165}
1166
1167static inline int security_task_setnice(struct task_struct *p, int nice)
1168{
1169 return cap_task_setnice(p, nice);
1170}
1171
1172static inline int security_task_setioprio(struct task_struct *p, int ioprio)
1173{
1174 return cap_task_setioprio(p, ioprio);
1175}
1176
1177static inline int security_task_getioprio(struct task_struct *p)
1178{
1179 return 0;
1180}
1181
1182static inline int security_task_prlimit(const struct cred *cred,
1183 const struct cred *tcred,
1184 unsigned int flags)
1185{
1186 return 0;
1187}
1188
1189static inline int security_task_setrlimit(struct task_struct *p,
1190 unsigned int resource,
1191 struct rlimit *new_rlim)
1192{
1193 return 0;
1194}
1195
1196static inline int security_task_setscheduler(struct task_struct *p)
1197{
1198 return cap_task_setscheduler(p);
1199}
1200
1201static inline int security_task_getscheduler(struct task_struct *p)
1202{
1203 return 0;
1204}
1205
1206static inline int security_task_movememory(struct task_struct *p)
1207{
1208 return 0;
1209}
1210
1211static inline int security_task_kill(struct task_struct *p,
1212 struct kernel_siginfo *info, int sig,
1213 const struct cred *cred)
1214{
1215 return 0;
1216}
1217
1218static inline int security_task_prctl(int option, unsigned long arg2,
1219 unsigned long arg3,
1220 unsigned long arg4,
1221 unsigned long arg5)
1222{
1223 return cap_task_prctl(option, arg2, arg3, arg4, arg5);
1224}
1225
1226static inline void security_task_to_inode(struct task_struct *p, struct inode *inode)
1227{ }
1228
1229static inline int security_create_user_ns(const struct cred *cred)
1230{
1231 return 0;
1232}
1233
1234static inline int security_ipc_permission(struct kern_ipc_perm *ipcp,
1235 short flag)
1236{
1237 return 0;
1238}
1239
1240static inline void security_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid)
1241{
1242 *secid = 0;
1243}
1244
1245static inline int security_msg_msg_alloc(struct msg_msg *msg)
1246{
1247 return 0;
1248}
1249
1250static inline void security_msg_msg_free(struct msg_msg *msg)
1251{ }
1252
1253static inline int security_msg_queue_alloc(struct kern_ipc_perm *msq)
1254{
1255 return 0;
1256}
1257
1258static inline void security_msg_queue_free(struct kern_ipc_perm *msq)
1259{ }
1260
1261static inline int security_msg_queue_associate(struct kern_ipc_perm *msq,
1262 int msqflg)
1263{
1264 return 0;
1265}
1266
1267static inline int security_msg_queue_msgctl(struct kern_ipc_perm *msq, int cmd)
1268{
1269 return 0;
1270}
1271
1272static inline int security_msg_queue_msgsnd(struct kern_ipc_perm *msq,
1273 struct msg_msg *msg, int msqflg)
1274{
1275 return 0;
1276}
1277
1278static inline int security_msg_queue_msgrcv(struct kern_ipc_perm *msq,
1279 struct msg_msg *msg,
1280 struct task_struct *target,
1281 long type, int mode)
1282{
1283 return 0;
1284}
1285
1286static inline int security_shm_alloc(struct kern_ipc_perm *shp)
1287{
1288 return 0;
1289}
1290
1291static inline void security_shm_free(struct kern_ipc_perm *shp)
1292{ }
1293
1294static inline int security_shm_associate(struct kern_ipc_perm *shp,
1295 int shmflg)
1296{
1297 return 0;
1298}
1299
1300static inline int security_shm_shmctl(struct kern_ipc_perm *shp, int cmd)
1301{
1302 return 0;
1303}
1304
1305static inline int security_shm_shmat(struct kern_ipc_perm *shp,
1306 char __user *shmaddr, int shmflg)
1307{
1308 return 0;
1309}
1310
1311static inline int security_sem_alloc(struct kern_ipc_perm *sma)
1312{
1313 return 0;
1314}
1315
1316static inline void security_sem_free(struct kern_ipc_perm *sma)
1317{ }
1318
1319static inline int security_sem_associate(struct kern_ipc_perm *sma, int semflg)
1320{
1321 return 0;
1322}
1323
1324static inline int security_sem_semctl(struct kern_ipc_perm *sma, int cmd)
1325{
1326 return 0;
1327}
1328
1329static inline int security_sem_semop(struct kern_ipc_perm *sma,
1330 struct sembuf *sops, unsigned nsops,
1331 int alter)
1332{
1333 return 0;
1334}
1335
1336static inline void security_d_instantiate(struct dentry *dentry,
1337 struct inode *inode)
1338{ }
1339
1340static inline int security_getprocattr(struct task_struct *p, const char *lsm,
1341 const char *name, char **value)
1342{
1343 return -EINVAL;
1344}
1345
1346static inline int security_setprocattr(const char *lsm, char *name,
1347 void *value, size_t size)
1348{
1349 return -EINVAL;
1350}
1351
1352static inline int security_netlink_send(struct sock *sk, struct sk_buff *skb)
1353{
1354 return 0;
1355}
1356
1357static inline int security_ismaclabel(const char *name)
1358{
1359 return 0;
1360}
1361
1362static inline int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen)
1363{
1364 return -EOPNOTSUPP;
1365}
1366
1367static inline int security_secctx_to_secid(const char *secdata,
1368 u32 seclen,
1369 u32 *secid)
1370{
1371 return -EOPNOTSUPP;
1372}
1373
1374static inline void security_release_secctx(char *secdata, u32 seclen)
1375{
1376}
1377
1378static inline void security_inode_invalidate_secctx(struct inode *inode)
1379{
1380}
1381
1382static inline int security_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen)
1383{
1384 return -EOPNOTSUPP;
1385}
1386static inline int security_inode_setsecctx(struct dentry *dentry, void *ctx, u32 ctxlen)
1387{
1388 return -EOPNOTSUPP;
1389}
1390static inline int security_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen)
1391{
1392 return -EOPNOTSUPP;
1393}
1394static inline int security_locked_down(enum lockdown_reason what)
1395{
1396 return 0;
1397}
1398#endif /* CONFIG_SECURITY */
1399
1400#if defined(CONFIG_SECURITY) && defined(CONFIG_WATCH_QUEUE)
1401int security_post_notification(const struct cred *w_cred,
1402 const struct cred *cred,
1403 struct watch_notification *n);
1404#else
1405static inline int security_post_notification(const struct cred *w_cred,
1406 const struct cred *cred,
1407 struct watch_notification *n)
1408{
1409 return 0;
1410}
1411#endif
1412
1413#if defined(CONFIG_SECURITY) && defined(CONFIG_KEY_NOTIFICATIONS)
1414int security_watch_key(struct key *key);
1415#else
1416static inline int security_watch_key(struct key *key)
1417{
1418 return 0;
1419}
1420#endif
1421
1422#ifdef CONFIG_SECURITY_NETWORK
1423
1424int security_unix_stream_connect(struct sock *sock, struct sock *other, struct sock *newsk);
1425int security_unix_may_send(struct socket *sock, struct socket *other);
1426int security_socket_create(int family, int type, int protocol, int kern);
1427int security_socket_post_create(struct socket *sock, int family,
1428 int type, int protocol, int kern);
1429int security_socket_socketpair(struct socket *socka, struct socket *sockb);
1430int security_socket_bind(struct socket *sock, struct sockaddr *address, int addrlen);
1431int security_socket_connect(struct socket *sock, struct sockaddr *address, int addrlen);
1432int security_socket_listen(struct socket *sock, int backlog);
1433int security_socket_accept(struct socket *sock, struct socket *newsock);
1434int security_socket_sendmsg(struct socket *sock, struct msghdr *msg, int size);
1435int security_socket_recvmsg(struct socket *sock, struct msghdr *msg,
1436 int size, int flags);
1437int security_socket_getsockname(struct socket *sock);
1438int security_socket_getpeername(struct socket *sock);
1439int security_socket_getsockopt(struct socket *sock, int level, int optname);
1440int security_socket_setsockopt(struct socket *sock, int level, int optname);
1441int security_socket_shutdown(struct socket *sock, int how);
1442int security_sock_rcv_skb(struct sock *sk, struct sk_buff *skb);
1443int security_socket_getpeersec_stream(struct socket *sock, sockptr_t optval,
1444 sockptr_t optlen, unsigned int len);
1445int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid);
1446int security_sk_alloc(struct sock *sk, int family, gfp_t priority);
1447void security_sk_free(struct sock *sk);
1448void security_sk_clone(const struct sock *sk, struct sock *newsk);
1449void security_sk_classify_flow(const struct sock *sk,
1450 struct flowi_common *flic);
1451void security_req_classify_flow(const struct request_sock *req,
1452 struct flowi_common *flic);
1453void security_sock_graft(struct sock*sk, struct socket *parent);
1454int security_inet_conn_request(const struct sock *sk,
1455 struct sk_buff *skb, struct request_sock *req);
1456void security_inet_csk_clone(struct sock *newsk,
1457 const struct request_sock *req);
1458void security_inet_conn_established(struct sock *sk,
1459 struct sk_buff *skb);
1460int security_secmark_relabel_packet(u32 secid);
1461void security_secmark_refcount_inc(void);
1462void security_secmark_refcount_dec(void);
1463int security_tun_dev_alloc_security(void **security);
1464void security_tun_dev_free_security(void *security);
1465int security_tun_dev_create(void);
1466int security_tun_dev_attach_queue(void *security);
1467int security_tun_dev_attach(struct sock *sk, void *security);
1468int security_tun_dev_open(void *security);
1469int security_sctp_assoc_request(struct sctp_association *asoc, struct sk_buff *skb);
1470int security_sctp_bind_connect(struct sock *sk, int optname,
1471 struct sockaddr *address, int addrlen);
1472void security_sctp_sk_clone(struct sctp_association *asoc, struct sock *sk,
1473 struct sock *newsk);
1474int security_sctp_assoc_established(struct sctp_association *asoc,
1475 struct sk_buff *skb);
1476int security_mptcp_add_subflow(struct sock *sk, struct sock *ssk);
1477
1478#else /* CONFIG_SECURITY_NETWORK */
1479static inline int security_unix_stream_connect(struct sock *sock,
1480 struct sock *other,
1481 struct sock *newsk)
1482{
1483 return 0;
1484}
1485
1486static inline int security_unix_may_send(struct socket *sock,
1487 struct socket *other)
1488{
1489 return 0;
1490}
1491
1492static inline int security_socket_create(int family, int type,
1493 int protocol, int kern)
1494{
1495 return 0;
1496}
1497
1498static inline int security_socket_post_create(struct socket *sock,
1499 int family,
1500 int type,
1501 int protocol, int kern)
1502{
1503 return 0;
1504}
1505
1506static inline int security_socket_socketpair(struct socket *socka,
1507 struct socket *sockb)
1508{
1509 return 0;
1510}
1511
1512static inline int security_socket_bind(struct socket *sock,
1513 struct sockaddr *address,
1514 int addrlen)
1515{
1516 return 0;
1517}
1518
1519static inline int security_socket_connect(struct socket *sock,
1520 struct sockaddr *address,
1521 int addrlen)
1522{
1523 return 0;
1524}
1525
1526static inline int security_socket_listen(struct socket *sock, int backlog)
1527{
1528 return 0;
1529}
1530
1531static inline int security_socket_accept(struct socket *sock,
1532 struct socket *newsock)
1533{
1534 return 0;
1535}
1536
1537static inline int security_socket_sendmsg(struct socket *sock,
1538 struct msghdr *msg, int size)
1539{
1540 return 0;
1541}
1542
1543static inline int security_socket_recvmsg(struct socket *sock,
1544 struct msghdr *msg, int size,
1545 int flags)
1546{
1547 return 0;
1548}
1549
1550static inline int security_socket_getsockname(struct socket *sock)
1551{
1552 return 0;
1553}
1554
1555static inline int security_socket_getpeername(struct socket *sock)
1556{
1557 return 0;
1558}
1559
1560static inline int security_socket_getsockopt(struct socket *sock,
1561 int level, int optname)
1562{
1563 return 0;
1564}
1565
1566static inline int security_socket_setsockopt(struct socket *sock,
1567 int level, int optname)
1568{
1569 return 0;
1570}
1571
1572static inline int security_socket_shutdown(struct socket *sock, int how)
1573{
1574 return 0;
1575}
1576static inline int security_sock_rcv_skb(struct sock *sk,
1577 struct sk_buff *skb)
1578{
1579 return 0;
1580}
1581
1582static inline int security_socket_getpeersec_stream(struct socket *sock,
1583 sockptr_t optval,
1584 sockptr_t optlen,
1585 unsigned int len)
1586{
1587 return -ENOPROTOOPT;
1588}
1589
1590static inline int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid)
1591{
1592 return -ENOPROTOOPT;
1593}
1594
1595static inline int security_sk_alloc(struct sock *sk, int family, gfp_t priority)
1596{
1597 return 0;
1598}
1599
1600static inline void security_sk_free(struct sock *sk)
1601{
1602}
1603
1604static inline void security_sk_clone(const struct sock *sk, struct sock *newsk)
1605{
1606}
1607
1608static inline void security_sk_classify_flow(const struct sock *sk,
1609 struct flowi_common *flic)
1610{
1611}
1612
1613static inline void security_req_classify_flow(const struct request_sock *req,
1614 struct flowi_common *flic)
1615{
1616}
1617
1618static inline void security_sock_graft(struct sock *sk, struct socket *parent)
1619{
1620}
1621
1622static inline int security_inet_conn_request(const struct sock *sk,
1623 struct sk_buff *skb, struct request_sock *req)
1624{
1625 return 0;
1626}
1627
1628static inline void security_inet_csk_clone(struct sock *newsk,
1629 const struct request_sock *req)
1630{
1631}
1632
1633static inline void security_inet_conn_established(struct sock *sk,
1634 struct sk_buff *skb)
1635{
1636}
1637
1638static inline int security_secmark_relabel_packet(u32 secid)
1639{
1640 return 0;
1641}
1642
1643static inline void security_secmark_refcount_inc(void)
1644{
1645}
1646
1647static inline void security_secmark_refcount_dec(void)
1648{
1649}
1650
1651static inline int security_tun_dev_alloc_security(void **security)
1652{
1653 return 0;
1654}
1655
1656static inline void security_tun_dev_free_security(void *security)
1657{
1658}
1659
1660static inline int security_tun_dev_create(void)
1661{
1662 return 0;
1663}
1664
1665static inline int security_tun_dev_attach_queue(void *security)
1666{
1667 return 0;
1668}
1669
1670static inline int security_tun_dev_attach(struct sock *sk, void *security)
1671{
1672 return 0;
1673}
1674
1675static inline int security_tun_dev_open(void *security)
1676{
1677 return 0;
1678}
1679
1680static inline int security_sctp_assoc_request(struct sctp_association *asoc,
1681 struct sk_buff *skb)
1682{
1683 return 0;
1684}
1685
1686static inline int security_sctp_bind_connect(struct sock *sk, int optname,
1687 struct sockaddr *address,
1688 int addrlen)
1689{
1690 return 0;
1691}
1692
1693static inline void security_sctp_sk_clone(struct sctp_association *asoc,
1694 struct sock *sk,
1695 struct sock *newsk)
1696{
1697}
1698
1699static inline int security_sctp_assoc_established(struct sctp_association *asoc,
1700 struct sk_buff *skb)
1701{
1702 return 0;
1703}
1704
1705static inline int security_mptcp_add_subflow(struct sock *sk, struct sock *ssk)
1706{
1707 return 0;
1708}
1709#endif /* CONFIG_SECURITY_NETWORK */
1710
1711#ifdef CONFIG_SECURITY_INFINIBAND
1712int security_ib_pkey_access(void *sec, u64 subnet_prefix, u16 pkey);
1713int security_ib_endport_manage_subnet(void *sec, const char *name, u8 port_num);
1714int security_ib_alloc_security(void **sec);
1715void security_ib_free_security(void *sec);
1716#else /* CONFIG_SECURITY_INFINIBAND */
1717static inline int security_ib_pkey_access(void *sec, u64 subnet_prefix, u16 pkey)
1718{
1719 return 0;
1720}
1721
1722static inline int security_ib_endport_manage_subnet(void *sec, const char *dev_name, u8 port_num)
1723{
1724 return 0;
1725}
1726
1727static inline int security_ib_alloc_security(void **sec)
1728{
1729 return 0;
1730}
1731
1732static inline void security_ib_free_security(void *sec)
1733{
1734}
1735#endif /* CONFIG_SECURITY_INFINIBAND */
1736
1737#ifdef CONFIG_SECURITY_NETWORK_XFRM
1738
1739int security_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp,
1740 struct xfrm_user_sec_ctx *sec_ctx, gfp_t gfp);
1741int security_xfrm_policy_clone(struct xfrm_sec_ctx *old_ctx, struct xfrm_sec_ctx **new_ctxp);
1742void security_xfrm_policy_free(struct xfrm_sec_ctx *ctx);
1743int security_xfrm_policy_delete(struct xfrm_sec_ctx *ctx);
1744int security_xfrm_state_alloc(struct xfrm_state *x, struct xfrm_user_sec_ctx *sec_ctx);
1745int security_xfrm_state_alloc_acquire(struct xfrm_state *x,
1746 struct xfrm_sec_ctx *polsec, u32 secid);
1747int security_xfrm_state_delete(struct xfrm_state *x);
1748void security_xfrm_state_free(struct xfrm_state *x);
1749int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid);
1750int security_xfrm_state_pol_flow_match(struct xfrm_state *x,
1751 struct xfrm_policy *xp,
1752 const struct flowi_common *flic);
1753int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid);
1754void security_skb_classify_flow(struct sk_buff *skb, struct flowi_common *flic);
1755
1756#else /* CONFIG_SECURITY_NETWORK_XFRM */
1757
1758static inline int security_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp,
1759 struct xfrm_user_sec_ctx *sec_ctx,
1760 gfp_t gfp)
1761{
1762 return 0;
1763}
1764
1765static inline int security_xfrm_policy_clone(struct xfrm_sec_ctx *old, struct xfrm_sec_ctx **new_ctxp)
1766{
1767 return 0;
1768}
1769
1770static inline void security_xfrm_policy_free(struct xfrm_sec_ctx *ctx)
1771{
1772}
1773
1774static inline int security_xfrm_policy_delete(struct xfrm_sec_ctx *ctx)
1775{
1776 return 0;
1777}
1778
1779static inline int security_xfrm_state_alloc(struct xfrm_state *x,
1780 struct xfrm_user_sec_ctx *sec_ctx)
1781{
1782 return 0;
1783}
1784
1785static inline int security_xfrm_state_alloc_acquire(struct xfrm_state *x,
1786 struct xfrm_sec_ctx *polsec, u32 secid)
1787{
1788 return 0;
1789}
1790
1791static inline void security_xfrm_state_free(struct xfrm_state *x)
1792{
1793}
1794
1795static inline int security_xfrm_state_delete(struct xfrm_state *x)
1796{
1797 return 0;
1798}
1799
1800static inline int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid)
1801{
1802 return 0;
1803}
1804
1805static inline int security_xfrm_state_pol_flow_match(struct xfrm_state *x,
1806 struct xfrm_policy *xp,
1807 const struct flowi_common *flic)
1808{
1809 return 1;
1810}
1811
1812static inline int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid)
1813{
1814 return 0;
1815}
1816
1817static inline void security_skb_classify_flow(struct sk_buff *skb,
1818 struct flowi_common *flic)
1819{
1820}
1821
1822#endif /* CONFIG_SECURITY_NETWORK_XFRM */
1823
1824#ifdef CONFIG_SECURITY_PATH
1825int security_path_unlink(const struct path *dir, struct dentry *dentry);
1826int security_path_mkdir(const struct path *dir, struct dentry *dentry, umode_t mode);
1827int security_path_rmdir(const struct path *dir, struct dentry *dentry);
1828int security_path_mknod(const struct path *dir, struct dentry *dentry, umode_t mode,
1829 unsigned int dev);
1830int security_path_truncate(const struct path *path);
1831int security_path_symlink(const struct path *dir, struct dentry *dentry,
1832 const char *old_name);
1833int security_path_link(struct dentry *old_dentry, const struct path *new_dir,
1834 struct dentry *new_dentry);
1835int security_path_rename(const struct path *old_dir, struct dentry *old_dentry,
1836 const struct path *new_dir, struct dentry *new_dentry,
1837 unsigned int flags);
1838int security_path_chmod(const struct path *path, umode_t mode);
1839int security_path_chown(const struct path *path, kuid_t uid, kgid_t gid);
1840int security_path_chroot(const struct path *path);
1841#else /* CONFIG_SECURITY_PATH */
1842static inline int security_path_unlink(const struct path *dir, struct dentry *dentry)
1843{
1844 return 0;
1845}
1846
1847static inline int security_path_mkdir(const struct path *dir, struct dentry *dentry,
1848 umode_t mode)
1849{
1850 return 0;
1851}
1852
1853static inline int security_path_rmdir(const struct path *dir, struct dentry *dentry)
1854{
1855 return 0;
1856}
1857
1858static inline int security_path_mknod(const struct path *dir, struct dentry *dentry,
1859 umode_t mode, unsigned int dev)
1860{
1861 return 0;
1862}
1863
1864static inline int security_path_truncate(const struct path *path)
1865{
1866 return 0;
1867}
1868
1869static inline int security_path_symlink(const struct path *dir, struct dentry *dentry,
1870 const char *old_name)
1871{
1872 return 0;
1873}
1874
1875static inline int security_path_link(struct dentry *old_dentry,
1876 const struct path *new_dir,
1877 struct dentry *new_dentry)
1878{
1879 return 0;
1880}
1881
1882static inline int security_path_rename(const struct path *old_dir,
1883 struct dentry *old_dentry,
1884 const struct path *new_dir,
1885 struct dentry *new_dentry,
1886 unsigned int flags)
1887{
1888 return 0;
1889}
1890
1891static inline int security_path_chmod(const struct path *path, umode_t mode)
1892{
1893 return 0;
1894}
1895
1896static inline int security_path_chown(const struct path *path, kuid_t uid, kgid_t gid)
1897{
1898 return 0;
1899}
1900
1901static inline int security_path_chroot(const struct path *path)
1902{
1903 return 0;
1904}
1905#endif /* CONFIG_SECURITY_PATH */
1906
1907#ifdef CONFIG_KEYS
1908#ifdef CONFIG_SECURITY
1909
1910int security_key_alloc(struct key *key, const struct cred *cred, unsigned long flags);
1911void security_key_free(struct key *key);
1912int security_key_permission(key_ref_t key_ref, const struct cred *cred,
1913 enum key_need_perm need_perm);
1914int security_key_getsecurity(struct key *key, char **_buffer);
1915
1916#else
1917
1918static inline int security_key_alloc(struct key *key,
1919 const struct cred *cred,
1920 unsigned long flags)
1921{
1922 return 0;
1923}
1924
1925static inline void security_key_free(struct key *key)
1926{
1927}
1928
1929static inline int security_key_permission(key_ref_t key_ref,
1930 const struct cred *cred,
1931 enum key_need_perm need_perm)
1932{
1933 return 0;
1934}
1935
1936static inline int security_key_getsecurity(struct key *key, char **_buffer)
1937{
1938 *_buffer = NULL;
1939 return 0;
1940}
1941
1942#endif
1943#endif /* CONFIG_KEYS */
1944
1945#ifdef CONFIG_AUDIT
1946#ifdef CONFIG_SECURITY
1947int security_audit_rule_init(u32 field, u32 op, char *rulestr, void **lsmrule);
1948int security_audit_rule_known(struct audit_krule *krule);
1949int security_audit_rule_match(u32 secid, u32 field, u32 op, void *lsmrule);
1950void security_audit_rule_free(void *lsmrule);
1951
1952#else
1953
1954static inline int security_audit_rule_init(u32 field, u32 op, char *rulestr,
1955 void **lsmrule)
1956{
1957 return 0;
1958}
1959
1960static inline int security_audit_rule_known(struct audit_krule *krule)
1961{
1962 return 0;
1963}
1964
1965static inline int security_audit_rule_match(u32 secid, u32 field, u32 op,
1966 void *lsmrule)
1967{
1968 return 0;
1969}
1970
1971static inline void security_audit_rule_free(void *lsmrule)
1972{ }
1973
1974#endif /* CONFIG_SECURITY */
1975#endif /* CONFIG_AUDIT */
1976
1977#ifdef CONFIG_SECURITYFS
1978
1979extern struct dentry *securityfs_create_file(const char *name, umode_t mode,
1980 struct dentry *parent, void *data,
1981 const struct file_operations *fops);
1982extern struct dentry *securityfs_create_dir(const char *name, struct dentry *parent);
1983struct dentry *securityfs_create_symlink(const char *name,
1984 struct dentry *parent,
1985 const char *target,
1986 const struct inode_operations *iops);
1987extern void securityfs_remove(struct dentry *dentry);
1988
1989#else /* CONFIG_SECURITYFS */
1990
1991static inline struct dentry *securityfs_create_dir(const char *name,
1992 struct dentry *parent)
1993{
1994 return ERR_PTR(-ENODEV);
1995}
1996
1997static inline struct dentry *securityfs_create_file(const char *name,
1998 umode_t mode,
1999 struct dentry *parent,
2000 void *data,
2001 const struct file_operations *fops)
2002{
2003 return ERR_PTR(-ENODEV);
2004}
2005
2006static inline struct dentry *securityfs_create_symlink(const char *name,
2007 struct dentry *parent,
2008 const char *target,
2009 const struct inode_operations *iops)
2010{
2011 return ERR_PTR(-ENODEV);
2012}
2013
2014static inline void securityfs_remove(struct dentry *dentry)
2015{}
2016
2017#endif
2018
2019#ifdef CONFIG_BPF_SYSCALL
2020union bpf_attr;
2021struct bpf_map;
2022struct bpf_prog;
2023struct bpf_prog_aux;
2024#ifdef CONFIG_SECURITY
2025extern int security_bpf(int cmd, union bpf_attr *attr, unsigned int size);
2026extern int security_bpf_map(struct bpf_map *map, fmode_t fmode);
2027extern int security_bpf_prog(struct bpf_prog *prog);
2028extern int security_bpf_map_alloc(struct bpf_map *map);
2029extern void security_bpf_map_free(struct bpf_map *map);
2030extern int security_bpf_prog_alloc(struct bpf_prog_aux *aux);
2031extern void security_bpf_prog_free(struct bpf_prog_aux *aux);
2032#else
2033static inline int security_bpf(int cmd, union bpf_attr *attr,
2034 unsigned int size)
2035{
2036 return 0;
2037}
2038
2039static inline int security_bpf_map(struct bpf_map *map, fmode_t fmode)
2040{
2041 return 0;
2042}
2043
2044static inline int security_bpf_prog(struct bpf_prog *prog)
2045{
2046 return 0;
2047}
2048
2049static inline int security_bpf_map_alloc(struct bpf_map *map)
2050{
2051 return 0;
2052}
2053
2054static inline void security_bpf_map_free(struct bpf_map *map)
2055{ }
2056
2057static inline int security_bpf_prog_alloc(struct bpf_prog_aux *aux)
2058{
2059 return 0;
2060}
2061
2062static inline void security_bpf_prog_free(struct bpf_prog_aux *aux)
2063{ }
2064#endif /* CONFIG_SECURITY */
2065#endif /* CONFIG_BPF_SYSCALL */
2066
2067#ifdef CONFIG_PERF_EVENTS
2068struct perf_event_attr;
2069struct perf_event;
2070
2071#ifdef CONFIG_SECURITY
2072extern int security_perf_event_open(struct perf_event_attr *attr, int type);
2073extern int security_perf_event_alloc(struct perf_event *event);
2074extern void security_perf_event_free(struct perf_event *event);
2075extern int security_perf_event_read(struct perf_event *event);
2076extern int security_perf_event_write(struct perf_event *event);
2077#else
2078static inline int security_perf_event_open(struct perf_event_attr *attr,
2079 int type)
2080{
2081 return 0;
2082}
2083
2084static inline int security_perf_event_alloc(struct perf_event *event)
2085{
2086 return 0;
2087}
2088
2089static inline void security_perf_event_free(struct perf_event *event)
2090{
2091}
2092
2093static inline int security_perf_event_read(struct perf_event *event)
2094{
2095 return 0;
2096}
2097
2098static inline int security_perf_event_write(struct perf_event *event)
2099{
2100 return 0;
2101}
2102#endif /* CONFIG_SECURITY */
2103#endif /* CONFIG_PERF_EVENTS */
2104
2105#ifdef CONFIG_IO_URING
2106#ifdef CONFIG_SECURITY
2107extern int security_uring_override_creds(const struct cred *new);
2108extern int security_uring_sqpoll(void);
2109extern int security_uring_cmd(struct io_uring_cmd *ioucmd);
2110#else
2111static inline int security_uring_override_creds(const struct cred *new)
2112{
2113 return 0;
2114}
2115static inline int security_uring_sqpoll(void)
2116{
2117 return 0;
2118}
2119static inline int security_uring_cmd(struct io_uring_cmd *ioucmd)
2120{
2121 return 0;
2122}
2123#endif /* CONFIG_SECURITY */
2124#endif /* CONFIG_IO_URING */
2125
2126#endif /* ! __LINUX_SECURITY_H */
2127

source code of linux/include/linux/security.h