/* * Linux Security plug * * Copyright (C) 2001 WireX Communications, Inc <[email protected]> * Copyright (C) 2001 Greg Kroah-Hartman <[email protected]> * Copyright (C) 2001 Networks Associates Technology, Inc <[email protected]> * Copyright (C) 2001 James Morris <[email protected]> * 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 <linux/bpf.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 … /* If capable should audit the security request */ #define CAP_OPT_NOAUDIT … /* If capable is being called by a setid function */ #define CAP_OPT_INSETID … /* LSM Agnostic defines for security_sb_set_mnt_opts() flags */ #define SECURITY_LSM_NATIVE_LABELS … struct ctl_table; struct audit_krule; struct user_namespace; struct timezone; enum lsm_event { … }; /* * 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 { … }; 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 … #define dac_mmap_min_addr … #endif /* * Values used in the task_security_ops calls */ /* setuid or setgid, id0 == uid or gid */ #define LSM_SETID_ID … /* setreuid or setregid, id0 == real, id1 == eff */ #define LSM_SETID_RE … /* setresuid or setresgid, id0 == real, id1 == eff, uid2 == saved */ #define LSM_SETID_RES … /* setfsuid or setfsgid, id0 == fsuid or fsgid */ #define LSM_SETID_FS … /* Flags for security_task_prlimit(). */ #define LSM_PRLIMIT_READ … #define LSM_PRLIMIT_WRITE … /* forward declares to avoid warnings */ struct sched_param; struct request_sock; /* bprm->unsafe reasons */ #define LSM_UNSAFE_SHARE … #define LSM_UNSAFE_PTRACE … #define LSM_UNSAFE_NO_NEW_PRIVS … #ifdef CONFIG_MMU extern int mmap_min_addr_handler(const struct ctl_table *table, int write, void *buffer, size_t *lenp, loff_t *ppos); #endif /* security_inode_init_security callback function to write xattrs */ initxattrs; /* Keep the kernel_load_data_id enum in sync with kernel_read_file_id */ #define __data_id_enumify(ENUM, dummy) … #define __data_id_stringify(dummy, str) … enum kernel_load_data_id { … }; static const char * const kernel_load_data_str[] = …; static inline const char *kernel_load_data_id_str(enum kernel_load_data_id 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); void security_inode_post_create_tmpfile(struct mnt_idmap *idmap, struct inode *inode); 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); void security_inode_post_setattr(struct mnt_idmap *idmap, struct dentry *dentry, int ia_valid); 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); void security_inode_post_set_acl(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_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); void security_inode_post_removexattr(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(struct dentry *src, 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_release(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_post_open(struct file *file, int mask); 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 void security_inode_post_create_tmpfile(struct mnt_idmap *idmap, struct inode *inode) { } 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 void security_inode_post_setattr(struct mnt_idmap *idmap, struct dentry *dentry, int ia_valid) { } 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 void security_inode_post_set_acl(struct dentry *dentry, const char *acl_name, struct posix_acl *kacl) { } 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_remove_acl(struct mnt_idmap *idmap, struct dentry *dentry, const char *acl_name) { } 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 void security_inode_post_removexattr(struct dentry *dentry, const char *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(struct dentry *src, 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_release(struct file *file) { } static inline void security_file_free(struct file *file) { } static inline int security_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg) { return 0; } static inline int security_file_ioctl_compat(struct file *file, unsigned int cmd, unsigned long arg) { return 0; } static inline int security_mmap_file(struct file *file, unsigned long prot, unsigned long flags) { return 0; } static inline int security_mmap_addr(unsigned long addr) { return cap_mmap_addr(addr); } static inline int security_file_mprotect(struct vm_area_struct *vma, unsigned long reqprot, unsigned long prot) { return 0; } static inline int security_file_lock(struct file *file, unsigned int cmd) { return 0; } static inline int security_file_fcntl(struct file *file, unsigned int cmd, unsigned long arg) { return 0; } static inline void security_file_set_fowner(struct file *file) { return; } static inline int security_file_send_sigiotask(struct task_struct *tsk, struct fown_struct *fown, int sig) { return 0; } static inline int security_file_receive(struct file *file) { return 0; } static inline int security_file_open(struct file *file) { return 0; } static inline int security_file_post_open(struct file *file, int mask) { return 0; } static inline int security_file_truncate(struct file *file) { return 0; } static inline int security_task_alloc(struct task_struct *task, unsigned long clone_flags) { return 0; } static inline void security_task_free(struct task_struct *task) { } static inline int security_cred_alloc_blank(struct cred *cred, gfp_t gfp) { return 0; } static inline void security_cred_free(struct cred *cred) { } static inline int security_prepare_creds(struct cred *new, const struct cred *old, gfp_t gfp) { return 0; } static inline void security_transfer_creds(struct cred *new, const struct cred *old) { } static inline void security_cred_getsecid(const struct cred *c, u32 *secid) { *secid = 0; } static inline int security_kernel_act_as(struct cred *cred, u32 secid) { return 0; } static inline int security_kernel_create_files_as(struct cred *cred, struct inode *inode) { return 0; } static inline int security_kernel_module_request(char *kmod_name) { return 0; } static inline int security_kernel_load_data(enum kernel_load_data_id id, bool contents) { return 0; } static inline int security_kernel_post_load_data(char *buf, loff_t size, enum kernel_load_data_id id, char *description) { return 0; } static inline int security_kernel_read_file(struct file *file, enum kernel_read_file_id id, bool contents) { return 0; } static inline int security_kernel_post_read_file(struct file *file, char *buf, loff_t size, enum kernel_read_file_id id) { return 0; } static inline int security_task_fix_setuid(struct cred *new, const struct cred *old, int flags) { return cap_task_fix_setuid(new, old, flags); } static inline int security_task_fix_setgid(struct cred *new, const struct cred *old, int flags) { return 0; } static inline int security_task_fix_setgroups(struct cred *new, const struct cred *old) { return 0; } static inline int security_task_setpgid(struct task_struct *p, pid_t pgid) { return 0; } static inline int security_task_getpgid(struct task_struct *p) { return 0; } static inline int security_task_getsid(struct task_struct *p) { return 0; } static inline void security_current_getsecid_subj(u32 *secid) { *secid = 0; } static inline void security_task_getsecid_obj(struct task_struct *p, u32 *secid) { *secid = 0; } static inline int security_task_setnice(struct task_struct *p, int nice) { return cap_task_setnice(p, nice); } static inline int security_task_setioprio(struct task_struct *p, int ioprio) { return cap_task_setioprio(p, ioprio); } static inline int security_task_getioprio(struct task_struct *p) { return 0; } static inline int security_task_prlimit(const struct cred *cred, const struct cred *tcred, unsigned int flags) { return 0; } static inline int security_task_setrlimit(struct task_struct *p, unsigned int resource, struct rlimit *new_rlim) { return 0; } static inline int security_task_setscheduler(struct task_struct *p) { return cap_task_setscheduler(p); } static inline int security_task_getscheduler(struct task_struct *p) { return 0; } static inline int security_task_movememory(struct task_struct *p) { return 0; } static inline int security_task_kill(struct task_struct *p, struct kernel_siginfo *info, int sig, const struct cred *cred) { return 0; } static inline int security_task_prctl(int option, unsigned long arg2, unsigned long arg3, unsigned long arg4, unsigned long arg5) { return cap_task_prctl(option, arg2, arg3, arg4, arg5); } static inline void security_task_to_inode(struct task_struct *p, struct inode *inode) { } static inline int security_create_user_ns(const struct cred *cred) { return 0; } static inline int security_ipc_permission(struct kern_ipc_perm *ipcp, short flag) { return 0; } static inline void security_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid) { *secid = 0; } static inline int security_msg_msg_alloc(struct msg_msg *msg) { return 0; } static inline void security_msg_msg_free(struct msg_msg *msg) { } static inline int security_msg_queue_alloc(struct kern_ipc_perm *msq) { return 0; } static inline void security_msg_queue_free(struct kern_ipc_perm *msq) { } static inline int security_msg_queue_associate(struct kern_ipc_perm *msq, int msqflg) { return 0; } static inline int security_msg_queue_msgctl(struct kern_ipc_perm *msq, int cmd) { return 0; } static inline int security_msg_queue_msgsnd(struct kern_ipc_perm *msq, struct msg_msg *msg, int msqflg) { return 0; } static inline int security_msg_queue_msgrcv(struct kern_ipc_perm *msq, struct msg_msg *msg, struct task_struct *target, long type, int mode) { return 0; } static inline int security_shm_alloc(struct kern_ipc_perm *shp) { return 0; } static inline void security_shm_free(struct kern_ipc_perm *shp) { } static inline int security_shm_associate(struct kern_ipc_perm *shp, int shmflg) { return 0; } static inline int security_shm_shmctl(struct kern_ipc_perm *shp, int cmd) { return 0; } static inline int security_shm_shmat(struct kern_ipc_perm *shp, char __user *shmaddr, int shmflg) { return 0; } static inline int security_sem_alloc(struct kern_ipc_perm *sma) { return 0; } static inline void security_sem_free(struct kern_ipc_perm *sma) { } static inline int security_sem_associate(struct kern_ipc_perm *sma, int semflg) { return 0; } static inline int security_sem_semctl(struct kern_ipc_perm *sma, int cmd) { return 0; } static inline int security_sem_semop(struct kern_ipc_perm *sma, struct sembuf *sops, unsigned nsops, int alter) { return 0; } static inline void security_d_instantiate(struct dentry *dentry, struct inode *inode) { } static inline int security_getselfattr(unsigned int attr, struct lsm_ctx __user *ctx, size_t __user *size, u32 flags) { return -EOPNOTSUPP; } static inline int security_setselfattr(unsigned int attr, struct lsm_ctx __user *ctx, size_t size, u32 flags) { return -EOPNOTSUPP; } static inline int security_getprocattr(struct task_struct *p, int lsmid, const char *name, char **value) { return -EINVAL; } static inline int security_setprocattr(int lsmid, char *name, void *value, size_t size) { return -EINVAL; } static inline int security_netlink_send(struct sock *sk, struct sk_buff *skb) { return 0; } static inline int security_ismaclabel(const char *name) { return 0; } static inline int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen) { return -EOPNOTSUPP; } static inline int security_secctx_to_secid(const char *secdata, u32 seclen, u32 *secid) { return -EOPNOTSUPP; } static inline void security_release_secctx(char *secdata, u32 seclen) { } static inline void security_inode_invalidate_secctx(struct inode *inode) { } static inline int security_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen) { return -EOPNOTSUPP; } static inline int security_inode_setsecctx(struct dentry *dentry, void *ctx, u32 ctxlen) { return -EOPNOTSUPP; } static inline int security_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen) { return -EOPNOTSUPP; } static inline int security_locked_down(enum lockdown_reason what) { return 0; } static inline int lsm_fill_user_ctx(struct lsm_ctx __user *uctx, u32 *uctx_len, void *val, size_t val_len, u64 id, u64 flags) { return -EOPNOTSUPP; } #endif /* CONFIG_SECURITY */ #if defined(CONFIG_SECURITY) && defined(CONFIG_WATCH_QUEUE) int security_post_notification(const struct cred *w_cred, const struct cred *cred, struct watch_notification *n); #else static inline int security_post_notification(const struct cred *w_cred, const struct cred *cred, struct watch_notification *n) { return 0; } #endif #if defined(CONFIG_SECURITY) && defined(CONFIG_KEY_NOTIFICATIONS) int security_watch_key(struct key *key); #else static inline int security_watch_key(struct key *key) { return 0; } #endif #ifdef CONFIG_SECURITY_NETWORK int security_unix_stream_connect(struct sock *sock, struct sock *other, struct sock *newsk); int security_unix_may_send(struct socket *sock, struct socket *other); int security_socket_create(int family, int type, int protocol, int kern); int security_socket_post_create(struct socket *sock, int family, int type, int protocol, int kern); int security_socket_socketpair(struct socket *socka, struct socket *sockb); int security_socket_bind(struct socket *sock, struct sockaddr *address, int addrlen); int security_socket_connect(struct socket *sock, struct sockaddr *address, int addrlen); int security_socket_listen(struct socket *sock, int backlog); int security_socket_accept(struct socket *sock, struct socket *newsock); int security_socket_sendmsg(struct socket *sock, struct msghdr *msg, int size); int security_socket_recvmsg(struct socket *sock, struct msghdr *msg, int size, int flags); int security_socket_getsockname(struct socket *sock); int security_socket_getpeername(struct socket *sock); int security_socket_getsockopt(struct socket *sock, int level, int optname); int security_socket_setsockopt(struct socket *sock, int level, int optname); int security_socket_shutdown(struct socket *sock, int how); int security_sock_rcv_skb(struct sock *sk, struct sk_buff *skb); int security_socket_getpeersec_stream(struct socket *sock, sockptr_t optval, sockptr_t optlen, unsigned int len); int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid); int security_sk_alloc(struct sock *sk, int family, gfp_t priority); void security_sk_free(struct sock *sk); void security_sk_clone(const struct sock *sk, struct sock *newsk); void security_sk_classify_flow(const struct sock *sk, struct flowi_common *flic); void security_req_classify_flow(const struct request_sock *req, struct flowi_common *flic); void security_sock_graft(struct sock*sk, struct socket *parent); int security_inet_conn_request(const struct sock *sk, struct sk_buff *skb, struct request_sock *req); void security_inet_csk_clone(struct sock *newsk, const struct request_sock *req); void security_inet_conn_established(struct sock *sk, struct sk_buff *skb); int security_secmark_relabel_packet(u32 secid); void security_secmark_refcount_inc(void); void security_secmark_refcount_dec(void); int security_tun_dev_alloc_security(void **security); void security_tun_dev_free_security(void *security); int security_tun_dev_create(void); int security_tun_dev_attach_queue(void *security); int security_tun_dev_attach(struct sock *sk, void *security); int security_tun_dev_open(void *security); int security_sctp_assoc_request(struct sctp_association *asoc, struct sk_buff *skb); int security_sctp_bind_connect(struct sock *sk, int optname, struct sockaddr *address, int addrlen); void security_sctp_sk_clone(struct sctp_association *asoc, struct sock *sk, struct sock *newsk); int security_sctp_assoc_established(struct sctp_association *asoc, struct sk_buff *skb); int security_mptcp_add_subflow(struct sock *sk, struct sock *ssk); #else /* CONFIG_SECURITY_NETWORK */ static inline int security_unix_stream_connect(struct sock *sock, struct sock *other, struct sock *newsk) { return 0; } static inline int security_unix_may_send(struct socket *sock, struct socket *other) { return 0; } static inline int security_socket_create(int family, int type, int protocol, int kern) { return 0; } static inline int security_socket_post_create(struct socket *sock, int family, int type, int protocol, int kern) { return 0; } static inline int security_socket_socketpair(struct socket *socka, struct socket *sockb) { return 0; } static inline int security_socket_bind(struct socket *sock, struct sockaddr *address, int addrlen) { return 0; } static inline int security_socket_connect(struct socket *sock, struct sockaddr *address, int addrlen) { return 0; } static inline int security_socket_listen(struct socket *sock, int backlog) { return 0; } static inline int security_socket_accept(struct socket *sock, struct socket *newsock) { return 0; } static inline int security_socket_sendmsg(struct socket *sock, struct msghdr *msg, int size) { return 0; } static inline int security_socket_recvmsg(struct socket *sock, struct msghdr *msg, int size, int flags) { return 0; } static inline int security_socket_getsockname(struct socket *sock) { return 0; } static inline int security_socket_getpeername(struct socket *sock) { return 0; } static inline int security_socket_getsockopt(struct socket *sock, int level, int optname) { return 0; } static inline int security_socket_setsockopt(struct socket *sock, int level, int optname) { return 0; } static inline int security_socket_shutdown(struct socket *sock, int how) { return 0; } static inline int security_sock_rcv_skb(struct sock *sk, struct sk_buff *skb) { return 0; } static inline int security_socket_getpeersec_stream(struct socket *sock, sockptr_t optval, sockptr_t optlen, unsigned int len) { return -ENOPROTOOPT; } static inline int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid) { return -ENOPROTOOPT; } static inline int security_sk_alloc(struct sock *sk, int family, gfp_t priority) { return 0; } static inline void security_sk_free(struct sock *sk) { } static inline void security_sk_clone(const struct sock *sk, struct sock *newsk) { } static inline void security_sk_classify_flow(const struct sock *sk, struct flowi_common *flic) { } static inline void security_req_classify_flow(const struct request_sock *req, struct flowi_common *flic) { } static inline void security_sock_graft(struct sock *sk, struct socket *parent) { } static inline int security_inet_conn_request(const struct sock *sk, struct sk_buff *skb, struct request_sock *req) { return 0; } static inline void security_inet_csk_clone(struct sock *newsk, const struct request_sock *req) { } static inline void security_inet_conn_established(struct sock *sk, struct sk_buff *skb) { } static inline int security_secmark_relabel_packet(u32 secid) { return 0; } static inline void security_secmark_refcount_inc(void) { } static inline void security_secmark_refcount_dec(void) { } static inline int security_tun_dev_alloc_security(void **security) { return 0; } static inline void security_tun_dev_free_security(void *security) { } static inline int security_tun_dev_create(void) { return 0; } static inline int security_tun_dev_attach_queue(void *security) { return 0; } static inline int security_tun_dev_attach(struct sock *sk, void *security) { return 0; } static inline int security_tun_dev_open(void *security) { return 0; } static inline int security_sctp_assoc_request(struct sctp_association *asoc, struct sk_buff *skb) { return 0; } static inline int security_sctp_bind_connect(struct sock *sk, int optname, struct sockaddr *address, int addrlen) { return 0; } static inline void security_sctp_sk_clone(struct sctp_association *asoc, struct sock *sk, struct sock *newsk) { } static inline int security_sctp_assoc_established(struct sctp_association *asoc, struct sk_buff *skb) { return 0; } static inline int security_mptcp_add_subflow(struct sock *sk, struct sock *ssk) { return 0; } #endif /* CONFIG_SECURITY_NETWORK */ #ifdef CONFIG_SECURITY_INFINIBAND int security_ib_pkey_access(void *sec, u64 subnet_prefix, u16 pkey); int security_ib_endport_manage_subnet(void *sec, const char *name, u8 port_num); int security_ib_alloc_security(void **sec); void security_ib_free_security(void *sec); #else /* CONFIG_SECURITY_INFINIBAND */ static inline int security_ib_pkey_access(void *sec, u64 subnet_prefix, u16 pkey) { return 0; } static inline int security_ib_endport_manage_subnet(void *sec, const char *dev_name, u8 port_num) { return 0; } static inline int security_ib_alloc_security(void **sec) { return 0; } static inline void security_ib_free_security(void *sec) { } #endif /* CONFIG_SECURITY_INFINIBAND */ #ifdef CONFIG_SECURITY_NETWORK_XFRM int security_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp, struct xfrm_user_sec_ctx *sec_ctx, gfp_t gfp); int security_xfrm_policy_clone(struct xfrm_sec_ctx *old_ctx, struct xfrm_sec_ctx **new_ctxp); void security_xfrm_policy_free(struct xfrm_sec_ctx *ctx); int security_xfrm_policy_delete(struct xfrm_sec_ctx *ctx); int security_xfrm_state_alloc(struct xfrm_state *x, struct xfrm_user_sec_ctx *sec_ctx); int security_xfrm_state_alloc_acquire(struct xfrm_state *x, struct xfrm_sec_ctx *polsec, u32 secid); int security_xfrm_state_delete(struct xfrm_state *x); void security_xfrm_state_free(struct xfrm_state *x); int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid); int security_xfrm_state_pol_flow_match(struct xfrm_state *x, struct xfrm_policy *xp, const struct flowi_common *flic); int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid); void security_skb_classify_flow(struct sk_buff *skb, struct flowi_common *flic); #else /* CONFIG_SECURITY_NETWORK_XFRM */ static inline int security_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp, struct xfrm_user_sec_ctx *sec_ctx, gfp_t gfp) { return 0; } static inline int security_xfrm_policy_clone(struct xfrm_sec_ctx *old, struct xfrm_sec_ctx **new_ctxp) { return 0; } static inline void security_xfrm_policy_free(struct xfrm_sec_ctx *ctx) { } static inline int security_xfrm_policy_delete(struct xfrm_sec_ctx *ctx) { return 0; } static inline int security_xfrm_state_alloc(struct xfrm_state *x, struct xfrm_user_sec_ctx *sec_ctx) { return 0; } static inline int security_xfrm_state_alloc_acquire(struct xfrm_state *x, struct xfrm_sec_ctx *polsec, u32 secid) { return 0; } static inline void security_xfrm_state_free(struct xfrm_state *x) { } static inline int security_xfrm_state_delete(struct xfrm_state *x) { return 0; } static inline int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid) { return 0; } static inline int security_xfrm_state_pol_flow_match(struct xfrm_state *x, struct xfrm_policy *xp, const struct flowi_common *flic) { return 1; } static inline int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid) { return 0; } static inline void security_skb_classify_flow(struct sk_buff *skb, struct flowi_common *flic) { } #endif /* CONFIG_SECURITY_NETWORK_XFRM */ #ifdef CONFIG_SECURITY_PATH int security_path_unlink(const struct path *dir, struct dentry *dentry); int security_path_mkdir(const struct path *dir, struct dentry *dentry, umode_t mode); int security_path_rmdir(const struct path *dir, struct dentry *dentry); int security_path_mknod(const struct path *dir, struct dentry *dentry, umode_t mode, unsigned int dev); void security_path_post_mknod(struct mnt_idmap *idmap, struct dentry *dentry); int security_path_truncate(const struct path *path); int security_path_symlink(const struct path *dir, struct dentry *dentry, const char *old_name); int security_path_link(struct dentry *old_dentry, const struct path *new_dir, struct dentry *new_dentry); int security_path_rename(const struct path *old_dir, struct dentry *old_dentry, const struct path *new_dir, struct dentry *new_dentry, unsigned int flags); int security_path_chmod(const struct path *path, umode_t mode); int security_path_chown(const struct path *path, kuid_t uid, kgid_t gid); int security_path_chroot(const struct path *path); #else /* CONFIG_SECURITY_PATH */ static inline int security_path_unlink(const struct path *dir, struct dentry *dentry) { return 0; } static inline int security_path_mkdir(const struct path *dir, struct dentry *dentry, umode_t mode) { return 0; } static inline int security_path_rmdir(const struct path *dir, struct dentry *dentry) { return 0; } static inline int security_path_mknod(const struct path *dir, struct dentry *dentry, umode_t mode, unsigned int dev) { return 0; } static inline void security_path_post_mknod(struct mnt_idmap *idmap, struct dentry *dentry) { } static inline int security_path_truncate(const struct path *path) { return 0; } static inline int security_path_symlink(const struct path *dir, struct dentry *dentry, const char *old_name) { return 0; } static inline int security_path_link(struct dentry *old_dentry, const struct path *new_dir, struct dentry *new_dentry) { return 0; } static inline int security_path_rename(const struct path *old_dir, struct dentry *old_dentry, const struct path *new_dir, struct dentry *new_dentry, unsigned int flags) { return 0; } static inline int security_path_chmod(const struct path *path, umode_t mode) { return 0; } static inline int security_path_chown(const struct path *path, kuid_t uid, kgid_t gid) { return 0; } static inline int security_path_chroot(const struct path *path) { return 0; } #endif /* CONFIG_SECURITY_PATH */ #ifdef CONFIG_KEYS #ifdef CONFIG_SECURITY int security_key_alloc(struct key *key, const struct cred *cred, unsigned long flags); void security_key_free(struct key *key); int security_key_permission(key_ref_t key_ref, const struct cred *cred, enum key_need_perm need_perm); int security_key_getsecurity(struct key *key, char **_buffer); void security_key_post_create_or_update(struct key *keyring, struct key *key, const void *payload, size_t payload_len, unsigned long flags, bool create); #else static inline int security_key_alloc(struct key *key, const struct cred *cred, unsigned long flags) { return 0; } static inline void security_key_free(struct key *key) { } static inline int security_key_permission(key_ref_t key_ref, const struct cred *cred, enum key_need_perm need_perm) { return 0; } static inline int security_key_getsecurity(struct key *key, char **_buffer) { *_buffer = NULL; return 0; } static inline void security_key_post_create_or_update(struct key *keyring, struct key *key, const void *payload, size_t payload_len, unsigned long flags, bool create) { } #endif #endif /* CONFIG_KEYS */ #ifdef CONFIG_AUDIT #ifdef CONFIG_SECURITY int security_audit_rule_init(u32 field, u32 op, char *rulestr, void **lsmrule, gfp_t gfp); int security_audit_rule_known(struct audit_krule *krule); int security_audit_rule_match(u32 secid, u32 field, u32 op, void *lsmrule); void security_audit_rule_free(void *lsmrule); #else static inline int security_audit_rule_init(u32 field, u32 op, char *rulestr, void **lsmrule, gfp_t gfp) { return 0; } static inline int security_audit_rule_known(struct audit_krule *krule) { return 0; } static inline int security_audit_rule_match(u32 secid, u32 field, u32 op, void *lsmrule) { return 0; } static inline void security_audit_rule_free(void *lsmrule) { } #endif /* CONFIG_SECURITY */ #endif /* CONFIG_AUDIT */ #ifdef CONFIG_SECURITYFS extern struct dentry *securityfs_create_file(const char *name, umode_t mode, struct dentry *parent, void *data, const struct file_operations *fops); extern struct dentry *securityfs_create_dir(const char *name, struct dentry *parent); struct dentry *securityfs_create_symlink(const char *name, struct dentry *parent, const char *target, const struct inode_operations *iops); extern void securityfs_remove(struct dentry *dentry); #else /* CONFIG_SECURITYFS */ static inline struct dentry *securityfs_create_dir(const char *name, struct dentry *parent) { return ERR_PTR(-ENODEV); } static inline struct dentry *securityfs_create_file(const char *name, umode_t mode, struct dentry *parent, void *data, const struct file_operations *fops) { return ERR_PTR(-ENODEV); } static inline struct dentry *securityfs_create_symlink(const char *name, struct dentry *parent, const char *target, const struct inode_operations *iops) { return ERR_PTR(-ENODEV); } static inline void securityfs_remove(struct dentry *dentry) {} #endif #ifdef CONFIG_BPF_SYSCALL bpf_attr; struct bpf_map; struct bpf_prog; struct bpf_token; #ifdef CONFIG_SECURITY extern int security_bpf(int cmd, union bpf_attr *attr, unsigned int size); extern int security_bpf_map(struct bpf_map *map, fmode_t fmode); extern int security_bpf_prog(struct bpf_prog *prog); extern int security_bpf_map_create(struct bpf_map *map, union bpf_attr *attr, struct bpf_token *token); extern void security_bpf_map_free(struct bpf_map *map); extern int security_bpf_prog_load(struct bpf_prog *prog, union bpf_attr *attr, struct bpf_token *token); extern void security_bpf_prog_free(struct bpf_prog *prog); extern int security_bpf_token_create(struct bpf_token *token, union bpf_attr *attr, struct path *path); extern void security_bpf_token_free(struct bpf_token *token); extern int security_bpf_token_cmd(const struct bpf_token *token, enum bpf_cmd cmd); extern int security_bpf_token_capable(const struct bpf_token *token, int cap); #else static inline int security_bpf(int cmd, union bpf_attr *attr, unsigned int size) { return 0; } static inline int security_bpf_map(struct bpf_map *map, fmode_t fmode) { return 0; } static inline int security_bpf_prog(struct bpf_prog *prog) { return 0; } static inline int security_bpf_map_create(struct bpf_map *map, union bpf_attr *attr, struct bpf_token *token) { return 0; } static inline void security_bpf_map_free(struct bpf_map *map) { } static inline int security_bpf_prog_load(struct bpf_prog *prog, union bpf_attr *attr, struct bpf_token *token) { return 0; } static inline void security_bpf_prog_free(struct bpf_prog *prog) { } static inline int security_bpf_token_create(struct bpf_token *token, union bpf_attr *attr, struct path *path) { return 0; } static inline void security_bpf_token_free(struct bpf_token *token) { } static inline int security_bpf_token_cmd(const struct bpf_token *token, enum bpf_cmd cmd) { return 0; } static inline int security_bpf_token_capable(const struct bpf_token *token, int cap) { return 0; } #endif /* CONFIG_SECURITY */ #endif /* CONFIG_BPF_SYSCALL */ #ifdef CONFIG_PERF_EVENTS struct perf_event_attr; struct perf_event; #ifdef CONFIG_SECURITY extern int security_perf_event_open(struct perf_event_attr *attr, int type); extern int security_perf_event_alloc(struct perf_event *event); extern void security_perf_event_free(struct perf_event *event); extern int security_perf_event_read(struct perf_event *event); extern int security_perf_event_write(struct perf_event *event); #else static inline int security_perf_event_open(struct perf_event_attr *attr, int type) { return 0; } static inline int security_perf_event_alloc(struct perf_event *event) { return 0; } static inline void security_perf_event_free(struct perf_event *event) { } static inline int security_perf_event_read(struct perf_event *event) { return 0; } static inline int security_perf_event_write(struct perf_event *event) { return 0; } #endif /* CONFIG_SECURITY */ #endif /* CONFIG_PERF_EVENTS */ #ifdef CONFIG_IO_URING #ifdef CONFIG_SECURITY extern int security_uring_override_creds(const struct cred *new); extern int security_uring_sqpoll(void); extern int security_uring_cmd(struct io_uring_cmd *ioucmd); #else static inline int security_uring_override_creds(const struct cred *new) { return 0; } static inline int security_uring_sqpoll(void) { return 0; } static inline int security_uring_cmd(struct io_uring_cmd *ioucmd) { return 0; } #endif /* CONFIG_SECURITY */ #endif /* CONFIG_IO_URING */ #endif /* ! __LINUX_SECURITY_H */
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