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security.h
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security.h
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/*
* Linux Security plug
*
* Copyright (C) 2001 WireX Communications, Inc <chris@wirex.com>
* Copyright (C) 2001 Greg Kroah-Hartman <greg@kroah.com>
* Copyright (C) 2001 Networks Associates Technology, Inc <ssmalley@nai.com>
* Copyright (C) 2001 James Morris <jmorris@intercode.com.au>
* Copyright (C) 2001 Silicon Graphics, Inc. (Trust Technology Group)
* Copyright (C) 2016 Mellanox Techonologies
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* Due to this file being licensed under the GPL there is controversy over
* whether this permits you to write a module that #includes this file
* without placing your module under the GPL. Please consult a lawyer for
* advice before doing this.
*
*/
#ifndef __LINUX_SECURITY_H
#define __LINUX_SECURITY_H
#include <linux/kernel_read_file.h>
#include <linux/key.h>
#include <linux/capability.h>
#include <linux/fs.h>
#include <linux/slab.h>
#include <linux/err.h>
#include <linux/string.h>
#include <linux/mm.h>
#include <linux/sockptr.h>
#include <uapi/linux/lsm.h>
struct linux_binprm;
struct cred;
struct rlimit;
struct kernel_siginfo;
struct sembuf;
struct kern_ipc_perm;
struct audit_context;
struct super_block;
struct inode;
struct dentry;
struct file;
struct vfsmount;
struct path;
struct qstr;
struct iattr;
struct fown_struct;
struct file_operations;
struct msg_msg;
struct xattr;
struct kernfs_node;
struct xfrm_sec_ctx;
struct mm_struct;
struct fs_context;
struct fs_parameter;
enum fs_value_type;
struct watch;
struct watch_notification;
struct lsm_ctx;
/* Default (no) options for the capable function */
#define CAP_OPT_NONE 0x0
/* If capable should audit the security request */
#define CAP_OPT_NOAUDIT BIT(1)
/* If capable is being called by a setid function */
#define CAP_OPT_INSETID BIT(2)
/* LSM Agnostic defines for security_sb_set_mnt_opts() flags */
#define SECURITY_LSM_NATIVE_LABELS 1
struct ctl_table;
struct audit_krule;
struct user_namespace;
struct timezone;
enum lsm_event {
LSM_POLICY_CHANGE,
};
/*
* These are reasons that can be passed to the security_locked_down()
* LSM hook. Lockdown reasons that protect kernel integrity (ie, the
* ability for userland to modify kernel code) are placed before
* LOCKDOWN_INTEGRITY_MAX. Lockdown reasons that protect kernel
* confidentiality (ie, the ability for userland to extract
* information from the running kernel that would otherwise be
* restricted) are placed before LOCKDOWN_CONFIDENTIALITY_MAX.
*
* LSM authors should note that the semantics of any given lockdown
* reason are not guaranteed to be stable - the same reason may block
* one set of features in one kernel release, and a slightly different
* set of features in a later kernel release. LSMs that seek to expose
* lockdown policy at any level of granularity other than "none",
* "integrity" or "confidentiality" are responsible for either
* ensuring that they expose a consistent level of functionality to
* userland, or ensuring that userland is aware that this is
* potentially a moving target. It is easy to misuse this information
* in a way that could break userspace. Please be careful not to do
* so.
*
* If you add to this, remember to extend lockdown_reasons in
* security/lockdown/lockdown.c.
*/
enum lockdown_reason {
LOCKDOWN_NONE,
LOCKDOWN_MODULE_SIGNATURE,
LOCKDOWN_DEV_MEM,
LOCKDOWN_EFI_TEST,
LOCKDOWN_KEXEC,
LOCKDOWN_HIBERNATION,
LOCKDOWN_PCI_ACCESS,
LOCKDOWN_IOPORT,
LOCKDOWN_MSR,
LOCKDOWN_ACPI_TABLES,
LOCKDOWN_DEVICE_TREE,
LOCKDOWN_PCMCIA_CIS,
LOCKDOWN_TIOCSSERIAL,
LOCKDOWN_MODULE_PARAMETERS,
LOCKDOWN_MMIOTRACE,
LOCKDOWN_DEBUGFS,
LOCKDOWN_XMON_WR,
LOCKDOWN_BPF_WRITE_USER,
LOCKDOWN_DBG_WRITE_KERNEL,
LOCKDOWN_RTAS_ERROR_INJECTION,
LOCKDOWN_INTEGRITY_MAX,
LOCKDOWN_KCORE,
LOCKDOWN_KPROBES,
LOCKDOWN_BPF_READ_KERNEL,
LOCKDOWN_DBG_READ_KERNEL,
LOCKDOWN_PERF,
LOCKDOWN_TRACEFS,
LOCKDOWN_XMON_RW,
LOCKDOWN_XFRM_SECRET,
LOCKDOWN_CONFIDENTIALITY_MAX,
};
extern const char *const lockdown_reasons[LOCKDOWN_CONFIDENTIALITY_MAX+1];
extern u32 lsm_active_cnt;
extern const struct lsm_id *lsm_idlist[];
/* These functions are in security/commoncap.c */
extern int cap_capable(const struct cred *cred, struct user_namespace *ns,
int cap, unsigned int opts);
extern int cap_settime(const struct timespec64 *ts, const struct timezone *tz);
extern int cap_ptrace_access_check(struct task_struct *child, unsigned int mode);
extern int cap_ptrace_traceme(struct task_struct *parent);
extern int cap_capget(const struct task_struct *target, kernel_cap_t *effective,
kernel_cap_t *inheritable, kernel_cap_t *permitted);
extern int cap_capset(struct cred *new, const struct cred *old,
const kernel_cap_t *effective,
const kernel_cap_t *inheritable,
const kernel_cap_t *permitted);
extern int cap_bprm_creds_from_file(struct linux_binprm *bprm, const struct file *file);
int cap_inode_setxattr(struct dentry *dentry, const char *name,
const void *value, size_t size, int flags);
int cap_inode_removexattr(struct mnt_idmap *idmap,
struct dentry *dentry, const char *name);
int cap_inode_need_killpriv(struct dentry *dentry);
int cap_inode_killpriv(struct mnt_idmap *idmap, struct dentry *dentry);
int cap_inode_getsecurity(struct mnt_idmap *idmap,
struct inode *inode, const char *name, void **buffer,
bool alloc);
extern int cap_mmap_addr(unsigned long addr);
extern int cap_mmap_file(struct file *file, unsigned long reqprot,
unsigned long prot, unsigned long flags);
extern int cap_task_fix_setuid(struct cred *new, const struct cred *old, int flags);
extern int cap_task_prctl(int option, unsigned long arg2, unsigned long arg3,
unsigned long arg4, unsigned long arg5);
extern int cap_task_setscheduler(struct task_struct *p);
extern int cap_task_setioprio(struct task_struct *p, int ioprio);
extern int cap_task_setnice(struct task_struct *p, int nice);
extern int cap_vm_enough_memory(struct mm_struct *mm, long pages);
struct msghdr;
struct sk_buff;
struct sock;
struct sockaddr;
struct socket;
struct flowi_common;
struct dst_entry;
struct xfrm_selector;
struct xfrm_policy;
struct xfrm_state;
struct xfrm_user_sec_ctx;
struct seq_file;
struct sctp_association;
#ifdef CONFIG_MMU
extern unsigned long mmap_min_addr;
extern unsigned long dac_mmap_min_addr;
#else
#define mmap_min_addr 0UL
#define dac_mmap_min_addr 0UL
#endif
/*
* Values used in the task_security_ops calls
*/
/* setuid or setgid, id0 == uid or gid */
#define LSM_SETID_ID 1
/* setreuid or setregid, id0 == real, id1 == eff */
#define LSM_SETID_RE 2
/* setresuid or setresgid, id0 == real, id1 == eff, uid2 == saved */
#define LSM_SETID_RES 4
/* setfsuid or setfsgid, id0 == fsuid or fsgid */
#define LSM_SETID_FS 8
/* Flags for security_task_prlimit(). */
#define LSM_PRLIMIT_READ 1
#define LSM_PRLIMIT_WRITE 2
/* forward declares to avoid warnings */
struct sched_param;
struct request_sock;
/* bprm->unsafe reasons */
#define LSM_UNSAFE_SHARE 1
#define LSM_UNSAFE_PTRACE 2
#define LSM_UNSAFE_NO_NEW_PRIVS 4
#ifdef CONFIG_MMU
extern int mmap_min_addr_handler(struct ctl_table *table, int write,
void *buffer, size_t *lenp, loff_t *ppos);
#endif
/* security_inode_init_security callback function to write xattrs */
typedef int (*initxattrs) (struct inode *inode,
const struct xattr *xattr_array, void *fs_data);
/* Keep the kernel_load_data_id enum in sync with kernel_read_file_id */
#define __data_id_enumify(ENUM, dummy) LOADING_ ## ENUM,
#define __data_id_stringify(dummy, str) #str,
enum kernel_load_data_id {
__kernel_read_file_id(__data_id_enumify)
};
static const char * const kernel_load_data_str[] = {
__kernel_read_file_id(__data_id_stringify)
};
static inline const char *kernel_load_data_id_str(enum kernel_load_data_id id)
{
if ((unsigned)id >= LOADING_MAX_ID)
return kernel_load_data_str[LOADING_UNKNOWN];
return kernel_load_data_str[id];
}
#ifdef CONFIG_SECURITY
int call_blocking_lsm_notifier(enum lsm_event event, void *data);
int register_blocking_lsm_notifier(struct notifier_block *nb);
int unregister_blocking_lsm_notifier(struct notifier_block *nb);
/* prototypes */
extern int security_init(void);
extern int early_security_init(void);
extern u64 lsm_name_to_attr(const char *name);
/* Security operations */
int security_binder_set_context_mgr(const struct cred *mgr);
int security_binder_transaction(const struct cred *from,
const struct cred *to);
int security_binder_transfer_binder(const struct cred *from,
const struct cred *to);
int security_binder_transfer_file(const struct cred *from,
const struct cred *to, const struct file *file);
int security_ptrace_access_check(struct task_struct *child, unsigned int mode);
int security_ptrace_traceme(struct task_struct *parent);
int security_capget(const struct task_struct *target,
kernel_cap_t *effective,
kernel_cap_t *inheritable,
kernel_cap_t *permitted);
int security_capset(struct cred *new, const struct cred *old,
const kernel_cap_t *effective,
const kernel_cap_t *inheritable,
const kernel_cap_t *permitted);
int security_capable(const struct cred *cred,
struct user_namespace *ns,
int cap,
unsigned int opts);
int security_quotactl(int cmds, int type, int id, const struct super_block *sb);
int security_quota_on(struct dentry *dentry);
int security_syslog(int type);
int security_settime64(const struct timespec64 *ts, const struct timezone *tz);
int security_vm_enough_memory_mm(struct mm_struct *mm, long pages);
int security_bprm_creds_for_exec(struct linux_binprm *bprm);
int security_bprm_creds_from_file(struct linux_binprm *bprm, const struct file *file);
int security_bprm_check(struct linux_binprm *bprm);
void security_bprm_committing_creds(const struct linux_binprm *bprm);
void security_bprm_committed_creds(const struct linux_binprm *bprm);
int security_fs_context_submount(struct fs_context *fc, struct super_block *reference);
int security_fs_context_dup(struct fs_context *fc, struct fs_context *src_fc);
int security_fs_context_parse_param(struct fs_context *fc, struct fs_parameter *param);
int security_sb_alloc(struct super_block *sb);
void security_sb_delete(struct super_block *sb);
void security_sb_free(struct super_block *sb);
void security_free_mnt_opts(void **mnt_opts);
int security_sb_eat_lsm_opts(char *options, void **mnt_opts);
int security_sb_mnt_opts_compat(struct super_block *sb, void *mnt_opts);
int security_sb_remount(struct super_block *sb, void *mnt_opts);
int security_sb_kern_mount(const struct super_block *sb);
int security_sb_show_options(struct seq_file *m, struct super_block *sb);
int security_sb_statfs(struct dentry *dentry);
int security_sb_mount(const char *dev_name, const struct path *path,
const char *type, unsigned long flags, void *data);
int security_sb_umount(struct vfsmount *mnt, int flags);
int security_sb_pivotroot(const struct path *old_path, const struct path *new_path);
int security_sb_set_mnt_opts(struct super_block *sb,
void *mnt_opts,
unsigned long kern_flags,
unsigned long *set_kern_flags);
int security_sb_clone_mnt_opts(const struct super_block *oldsb,
struct super_block *newsb,
unsigned long kern_flags,
unsigned long *set_kern_flags);
int security_move_mount(const struct path *from_path, const struct path *to_path);
int security_dentry_init_security(struct dentry *dentry, int mode,
const struct qstr *name,
const char **xattr_name, void **ctx,
u32 *ctxlen);
int security_dentry_create_files_as(struct dentry *dentry, int mode,
struct qstr *name,
const struct cred *old,
struct cred *new);
int security_path_notify(const struct path *path, u64 mask,
unsigned int obj_type);
int security_inode_alloc(struct inode *inode);
void security_inode_free(struct inode *inode);
int security_inode_init_security(struct inode *inode, struct inode *dir,
const struct qstr *qstr,
initxattrs initxattrs, void *fs_data);
int security_inode_init_security_anon(struct inode *inode,
const struct qstr *name,
const struct inode *context_inode);
int security_inode_create(struct inode *dir, struct dentry *dentry, umode_t mode);
int security_inode_link(struct dentry *old_dentry, struct inode *dir,
struct dentry *new_dentry);
int security_inode_unlink(struct inode *dir, struct dentry *dentry);
int security_inode_symlink(struct inode *dir, struct dentry *dentry,
const char *old_name);
int security_inode_mkdir(struct inode *dir, struct dentry *dentry, umode_t mode);
int security_inode_rmdir(struct inode *dir, struct dentry *dentry);
int security_inode_mknod(struct inode *dir, struct dentry *dentry, umode_t mode, dev_t dev);
int security_inode_rename(struct inode *old_dir, struct dentry *old_dentry,
struct inode *new_dir, struct dentry *new_dentry,
unsigned int flags);
int security_inode_readlink(struct dentry *dentry);
int security_inode_follow_link(struct dentry *dentry, struct inode *inode,
bool rcu);
int security_inode_permission(struct inode *inode, int mask);
int security_inode_setattr(struct mnt_idmap *idmap,
struct dentry *dentry, struct iattr *attr);
int security_inode_getattr(const struct path *path);
int security_inode_setxattr(struct mnt_idmap *idmap,
struct dentry *dentry, const char *name,
const void *value, size_t size, int flags);
int security_inode_set_acl(struct mnt_idmap *idmap,
struct dentry *dentry, const char *acl_name,
struct posix_acl *kacl);
int security_inode_get_acl(struct mnt_idmap *idmap,
struct dentry *dentry, const char *acl_name);
int security_inode_remove_acl(struct mnt_idmap *idmap,
struct dentry *dentry, const char *acl_name);
void security_inode_post_setxattr(struct dentry *dentry, const char *name,
const void *value, size_t size, int flags);
int security_inode_getxattr(struct dentry *dentry, const char *name);
int security_inode_listxattr(struct dentry *dentry);
int security_inode_removexattr(struct mnt_idmap *idmap,
struct dentry *dentry, const char *name);
int security_inode_need_killpriv(struct dentry *dentry);
int security_inode_killpriv(struct mnt_idmap *idmap, struct dentry *dentry);
int security_inode_getsecurity(struct mnt_idmap *idmap,
struct inode *inode, const char *name,
void **buffer, bool alloc);
int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags);
int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size);
void security_inode_getsecid(struct inode *inode, u32 *secid);
int security_inode_copy_up(struct dentry *src, struct cred **new);
int security_inode_copy_up_xattr(const char *name);
int security_kernfs_init_security(struct kernfs_node *kn_dir,
struct kernfs_node *kn);
int security_file_permission(struct file *file, int mask);
int security_file_alloc(struct file *file);
void security_file_free(struct file *file);
int security_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg);
int security_file_ioctl_compat(struct file *file, unsigned int cmd,
unsigned long arg);
int security_mmap_file(struct file *file, unsigned long prot,
unsigned long flags);
int security_mmap_addr(unsigned long addr);
int security_file_mprotect(struct vm_area_struct *vma, unsigned long reqprot,
unsigned long prot);
int security_file_lock(struct file *file, unsigned int cmd);
int security_file_fcntl(struct file *file, unsigned int cmd, unsigned long arg);
void security_file_set_fowner(struct file *file);
int security_file_send_sigiotask(struct task_struct *tsk,
struct fown_struct *fown, int sig);
int security_file_receive(struct file *file);
int security_file_open(struct file *file);
int security_file_truncate(struct file *file);
int security_task_alloc(struct task_struct *task, unsigned long clone_flags);
void security_task_free(struct task_struct *task);
int security_cred_alloc_blank(struct cred *cred, gfp_t gfp);
void security_cred_free(struct cred *cred);
int security_prepare_creds(struct cred *new, const struct cred *old, gfp_t gfp);
void security_transfer_creds(struct cred *new, const struct cred *old);
void security_cred_getsecid(const struct cred *c, u32 *secid);
int security_kernel_act_as(struct cred *new, u32 secid);
int security_kernel_create_files_as(struct cred *new, struct inode *inode);
int security_kernel_module_request(char *kmod_name);
int security_kernel_load_data(enum kernel_load_data_id id, bool contents);
int security_kernel_post_load_data(char *buf, loff_t size,
enum kernel_load_data_id id,
char *description);
int security_kernel_read_file(struct file *file, enum kernel_read_file_id id,
bool contents);
int security_kernel_post_read_file(struct file *file, char *buf, loff_t size,
enum kernel_read_file_id id);
int security_task_fix_setuid(struct cred *new, const struct cred *old,
int flags);
int security_task_fix_setgid(struct cred *new, const struct cred *old,
int flags);
int security_task_fix_setgroups(struct cred *new, const struct cred *old);
int security_task_setpgid(struct task_struct *p, pid_t pgid);
int security_task_getpgid(struct task_struct *p);
int security_task_getsid(struct task_struct *p);
void security_current_getsecid_subj(u32 *secid);
void security_task_getsecid_obj(struct task_struct *p, u32 *secid);
int security_task_setnice(struct task_struct *p, int nice);
int security_task_setioprio(struct task_struct *p, int ioprio);
int security_task_getioprio(struct task_struct *p);
int security_task_prlimit(const struct cred *cred, const struct cred *tcred,
unsigned int flags);
int security_task_setrlimit(struct task_struct *p, unsigned int resource,
struct rlimit *new_rlim);
int security_task_setscheduler(struct task_struct *p);
int security_task_getscheduler(struct task_struct *p);
int security_task_movememory(struct task_struct *p);
int security_task_kill(struct task_struct *p, struct kernel_siginfo *info,
int sig, const struct cred *cred);
int security_task_prctl(int option, unsigned long arg2, unsigned long arg3,
unsigned long arg4, unsigned long arg5);
void security_task_to_inode(struct task_struct *p, struct inode *inode);
int security_create_user_ns(const struct cred *cred);
int security_ipc_permission(struct kern_ipc_perm *ipcp, short flag);
void security_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid);
int security_msg_msg_alloc(struct msg_msg *msg);
void security_msg_msg_free(struct msg_msg *msg);
int security_msg_queue_alloc(struct kern_ipc_perm *msq);
void security_msg_queue_free(struct kern_ipc_perm *msq);
int security_msg_queue_associate(struct kern_ipc_perm *msq, int msqflg);
int security_msg_queue_msgctl(struct kern_ipc_perm *msq, int cmd);
int security_msg_queue_msgsnd(struct kern_ipc_perm *msq,
struct msg_msg *msg, int msqflg);
int security_msg_queue_msgrcv(struct kern_ipc_perm *msq, struct msg_msg *msg,
struct task_struct *target, long type, int mode);
int security_shm_alloc(struct kern_ipc_perm *shp);
void security_shm_free(struct kern_ipc_perm *shp);
int security_shm_associate(struct kern_ipc_perm *shp, int shmflg);
int security_shm_shmctl(struct kern_ipc_perm *shp, int cmd);
int security_shm_shmat(struct kern_ipc_perm *shp, char __user *shmaddr, int shmflg);
int security_sem_alloc(struct kern_ipc_perm *sma);
void security_sem_free(struct kern_ipc_perm *sma);
int security_sem_associate(struct kern_ipc_perm *sma, int semflg);
int security_sem_semctl(struct kern_ipc_perm *sma, int cmd);
int security_sem_semop(struct kern_ipc_perm *sma, struct sembuf *sops,
unsigned nsops, int alter);
void security_d_instantiate(struct dentry *dentry, struct inode *inode);
int security_getselfattr(unsigned int attr, struct lsm_ctx __user *ctx,
u32 __user *size, u32 flags);
int security_setselfattr(unsigned int attr, struct lsm_ctx __user *ctx,
u32 size, u32 flags);
int security_getprocattr(struct task_struct *p, int lsmid, const char *name,
char **value);
int security_setprocattr(int lsmid, const char *name, void *value, size_t size);
int security_netlink_send(struct sock *sk, struct sk_buff *skb);
int security_ismaclabel(const char *name);
int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen);
int security_secctx_to_secid(const char *secdata, u32 seclen, u32 *secid);
void security_release_secctx(char *secdata, u32 seclen);
void security_inode_invalidate_secctx(struct inode *inode);
int security_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen);
int security_inode_setsecctx(struct dentry *dentry, void *ctx, u32 ctxlen);
int security_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen);
int security_locked_down(enum lockdown_reason what);
int lsm_fill_user_ctx(struct lsm_ctx __user *uctx, u32 *uctx_len,
void *val, size_t val_len, u64 id, u64 flags);
#else /* CONFIG_SECURITY */
static inline int call_blocking_lsm_notifier(enum lsm_event event, void *data)
{
return 0;
}
static inline int register_blocking_lsm_notifier(struct notifier_block *nb)
{
return 0;
}
static inline int unregister_blocking_lsm_notifier(struct notifier_block *nb)
{
return 0;
}
static inline u64 lsm_name_to_attr(const char *name)
{
return LSM_ATTR_UNDEF;
}
static inline void security_free_mnt_opts(void **mnt_opts)
{
}
/*
* This is the default capabilities functionality. Most of these functions
* are just stubbed out, but a few must call the proper capable code.
*/
static inline int security_init(void)
{
return 0;
}
static inline int early_security_init(void)
{
return 0;
}
static inline int security_binder_set_context_mgr(const struct cred *mgr)
{
return 0;
}
static inline int security_binder_transaction(const struct cred *from,
const struct cred *to)
{
return 0;
}
static inline int security_binder_transfer_binder(const struct cred *from,
const struct cred *to)
{
return 0;
}
static inline int security_binder_transfer_file(const struct cred *from,
const struct cred *to,
const struct file *file)
{
return 0;
}
static inline int security_ptrace_access_check(struct task_struct *child,
unsigned int mode)
{
return cap_ptrace_access_check(child, mode);
}
static inline int security_ptrace_traceme(struct task_struct *parent)
{
return cap_ptrace_traceme(parent);
}
static inline int security_capget(const struct task_struct *target,
kernel_cap_t *effective,
kernel_cap_t *inheritable,
kernel_cap_t *permitted)
{
return cap_capget(target, effective, inheritable, permitted);
}
static inline int security_capset(struct cred *new,
const struct cred *old,
const kernel_cap_t *effective,
const kernel_cap_t *inheritable,
const kernel_cap_t *permitted)
{
return cap_capset(new, old, effective, inheritable, permitted);
}
static inline int security_capable(const struct cred *cred,
struct user_namespace *ns,
int cap,
unsigned int opts)
{
return cap_capable(cred, ns, cap, opts);
}
static inline int security_quotactl(int cmds, int type, int id,
const struct super_block *sb)
{
return 0;
}
static inline int security_quota_on(struct dentry *dentry)
{
return 0;
}
static inline int security_syslog(int type)
{
return 0;
}
static inline int security_settime64(const struct timespec64 *ts,
const struct timezone *tz)
{
return cap_settime(ts, tz);
}
static inline int security_vm_enough_memory_mm(struct mm_struct *mm, long pages)
{
return __vm_enough_memory(mm, pages, cap_vm_enough_memory(mm, pages));
}
static inline int security_bprm_creds_for_exec(struct linux_binprm *bprm)
{
return 0;
}
static inline int security_bprm_creds_from_file(struct linux_binprm *bprm,
const struct file *file)
{
return cap_bprm_creds_from_file(bprm, file);
}
static inline int security_bprm_check(struct linux_binprm *bprm)
{
return 0;
}
static inline void security_bprm_committing_creds(const struct linux_binprm *bprm)
{
}
static inline void security_bprm_committed_creds(const struct linux_binprm *bprm)
{
}
static inline int security_fs_context_submount(struct fs_context *fc,
struct super_block *reference)
{
return 0;
}
static inline int security_fs_context_dup(struct fs_context *fc,
struct fs_context *src_fc)
{
return 0;
}
static inline int security_fs_context_parse_param(struct fs_context *fc,
struct fs_parameter *param)
{
return -ENOPARAM;
}
static inline int security_sb_alloc(struct super_block *sb)
{
return 0;
}
static inline void security_sb_delete(struct super_block *sb)
{ }
static inline void security_sb_free(struct super_block *sb)
{ }
static inline int security_sb_eat_lsm_opts(char *options,
void **mnt_opts)
{
return 0;
}
static inline int security_sb_remount(struct super_block *sb,
void *mnt_opts)
{
return 0;
}
static inline int security_sb_mnt_opts_compat(struct super_block *sb,
void *mnt_opts)
{
return 0;
}
static inline int security_sb_kern_mount(struct super_block *sb)
{
return 0;
}
static inline int security_sb_show_options(struct seq_file *m,
struct super_block *sb)
{
return 0;
}
static inline int security_sb_statfs(struct dentry *dentry)
{
return 0;
}
static inline int security_sb_mount(const char *dev_name, const struct path *path,
const char *type, unsigned long flags,
void *data)
{
return 0;
}
static inline int security_sb_umount(struct vfsmount *mnt, int flags)
{
return 0;
}
static inline int security_sb_pivotroot(const struct path *old_path,
const struct path *new_path)
{
return 0;
}
static inline int security_sb_set_mnt_opts(struct super_block *sb,
void *mnt_opts,
unsigned long kern_flags,
unsigned long *set_kern_flags)
{
return 0;
}
static inline int security_sb_clone_mnt_opts(const struct super_block *oldsb,
struct super_block *newsb,
unsigned long kern_flags,
unsigned long *set_kern_flags)
{
return 0;
}
static inline int security_move_mount(const struct path *from_path,
const struct path *to_path)
{
return 0;
}
static inline int security_path_notify(const struct path *path, u64 mask,
unsigned int obj_type)
{
return 0;
}
static inline int security_inode_alloc(struct inode *inode)
{
return 0;
}
static inline void security_inode_free(struct inode *inode)
{ }
static inline int security_dentry_init_security(struct dentry *dentry,
int mode,
const struct qstr *name,
const char **xattr_name,
void **ctx,
u32 *ctxlen)
{
return -EOPNOTSUPP;
}
static inline int security_dentry_create_files_as(struct dentry *dentry,
int mode, struct qstr *name,
const struct cred *old,
struct cred *new)
{
return 0;
}
static inline int security_inode_init_security(struct inode *inode,
struct inode *dir,
const struct qstr *qstr,
const initxattrs xattrs,
void *fs_data)
{
return 0;
}
static inline int security_inode_init_security_anon(struct inode *inode,
const struct qstr *name,
const struct inode *context_inode)
{
return 0;
}
static inline int security_inode_create(struct inode *dir,
struct dentry *dentry,
umode_t mode)
{
return 0;
}
static inline int security_inode_link(struct dentry *old_dentry,
struct inode *dir,
struct dentry *new_dentry)
{
return 0;
}
static inline int security_inode_unlink(struct inode *dir,
struct dentry *dentry)
{
return 0;
}
static inline int security_inode_symlink(struct inode *dir,
struct dentry *dentry,
const char *old_name)
{
return 0;
}
static inline int security_inode_mkdir(struct inode *dir,
struct dentry *dentry,
int mode)
{
return 0;
}
static inline int security_inode_rmdir(struct inode *dir,
struct dentry *dentry)
{
return 0;
}
static inline int security_inode_mknod(struct inode *dir,
struct dentry *dentry,
int mode, dev_t dev)
{
return 0;
}
static inline int security_inode_rename(struct inode *old_dir,
struct dentry *old_dentry,
struct inode *new_dir,
struct dentry *new_dentry,
unsigned int flags)
{
return 0;
}
static inline int security_inode_readlink(struct dentry *dentry)
{
return 0;
}
static inline int security_inode_follow_link(struct dentry *dentry,
struct inode *inode,
bool rcu)
{
return 0;
}
static inline int security_inode_permission(struct inode *inode, int mask)
{
return 0;
}
static inline int security_inode_setattr(struct mnt_idmap *idmap,
struct dentry *dentry,
struct iattr *attr)
{
return 0;
}
static inline int security_inode_getattr(const struct path *path)
{
return 0;
}
static inline int security_inode_setxattr(struct mnt_idmap *idmap,
struct dentry *dentry, const char *name, const void *value,
size_t size, int flags)
{
return cap_inode_setxattr(dentry, name, value, size, flags);
}
static inline int security_inode_set_acl(struct mnt_idmap *idmap,
struct dentry *dentry,
const char *acl_name,
struct posix_acl *kacl)
{
return 0;
}
static inline int security_inode_get_acl(struct mnt_idmap *idmap,
struct dentry *dentry,
const char *acl_name)
{
return 0;
}
static inline int security_inode_remove_acl(struct mnt_idmap *idmap,
struct dentry *dentry,
const char *acl_name)
{
return 0;
}
static inline void security_inode_post_setxattr(struct dentry *dentry,
const char *name, const void *value, size_t size, int flags)
{ }
static inline int security_inode_getxattr(struct dentry *dentry,
const char *name)
{
return 0;
}
static inline int security_inode_listxattr(struct dentry *dentry)
{
return 0;
}
static inline int security_inode_removexattr(struct mnt_idmap *idmap,
struct dentry *dentry,
const char *name)
{
return cap_inode_removexattr(idmap, dentry, name);
}
static inline int security_inode_need_killpriv(struct dentry *dentry)
{
return cap_inode_need_killpriv(dentry);
}
static inline int security_inode_killpriv(struct mnt_idmap *idmap,
struct dentry *dentry)
{
return cap_inode_killpriv(idmap, dentry);
}
static inline int security_inode_getsecurity(struct mnt_idmap *idmap,
struct inode *inode,
const char *name, void **buffer,
bool alloc)
{
return cap_inode_getsecurity(idmap, inode, name, buffer, alloc);
}
static inline int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags)
{
return -EOPNOTSUPP;
}
static inline int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size)
{
return 0;
}
static inline void security_inode_getsecid(struct inode *inode, u32 *secid)
{
*secid = 0;
}
static inline int security_inode_copy_up(struct dentry *src, struct cred **new)
{
return 0;
}
static inline int security_kernfs_init_security(struct kernfs_node *kn_dir,
struct kernfs_node *kn)
{
return 0;
}
static inline int security_inode_copy_up_xattr(const char *name)
{
return -EOPNOTSUPP;
}
static inline int security_file_permission(struct file *file, int mask)
{
return 0;
}
static inline int security_file_alloc(struct file *file)
{
return 0;
}
static inline void security_file_free(struct file *file)
{ }