/* * Security plug functions * * Copyright (C) 2001 WireX Communications, Inc <chris@wirex.com> * Copyright (C) 2001-2002 Greg Kroah-Hartman <greg@kroah.com> * Copyright (C) 2001 Networks Associates Technology, Inc <ssmalley@nai.com> * * 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. */ #include <linux/capability.h>#include <linux/module.h>#include <linux/init.h>#include <linux/kernel.h>#include <linux/security.h> /* Boot-time LSM user choice */static __initdata char chosen_lsm[SECURITY_NAME_MAX + 1]; /* things that live in capability.c */extern struct security_operations default_security_ops;extern void security_fixup_ops(struct security_operations *ops); struct security_operations *security_ops; /* Initialized to NULL */ /* amount of vm to protect from userspace access */unsigned long mmap_min_addr = CONFIG_SECURITY_DEFAULT_MMAP_MIN_ADDR; static inline int verify(struct security_operations *ops){ /* verify the security_operations structure exists */ if (!ops) return -EINVAL; security_fixup_ops(ops); return 0;} static void __init do_security_initcalls(void){ initcall_t *call; call = __security_initcall_start; while (call < __security_initcall_end) { (*call) (); call++; }} /** * security_init - initializes the security framework * * This should be called early in the kernel initialization sequence. */int __init security_init(void){ printk(KERN_INFO "Security Framework initialized\n"); security_fixup_ops(&default_security_ops); security_ops = &default_security_ops; do_security_initcalls(); return 0;} /* Save user chosen LSM */static int __init choose_lsm(char *str){ strncpy(chosen_lsm, str, SECURITY_NAME_MAX); return 1;}__setup("security=", choose_lsm); /** * security_module_enable - Load given security module on boot ? * @ops: a pointer to the struct security_operations that is to be checked. * * Each LSM must pass this method before registering its own operations * to avoid security registration races. This method may also be used * to check if your LSM is currently loaded during kernel initialization. * * Return true if: * -The passed LSM is the one chosen by user at boot time, * -or user didn't specify a specific LSM and we're the first to ask * for registration permission, * -or the passed LSM is currently loaded. * Otherwise, return false. */int __init security_module_enable(struct security_operations *ops){ if (!*chosen_lsm) strncpy(chosen_lsm, ops->name, SECURITY_NAME_MAX); else if (strncmp(ops->name, chosen_lsm, SECURITY_NAME_MAX)) return 0; return 1;} /** * register_security - registers a security framework with the kernel * @ops: a pointer to the struct security_options that is to be registered * * This function allows a security module to register itself with the * kernel security subsystem. Some rudimentary checking is done on the @ops * value passed to this function. You'll need to check first if your LSM * is allowed to register its @ops by calling security_module_enable(@ops). * * If there is already a security module registered with the kernel, * an error will be returned. Otherwise %0 is returned on success. */int register_security(struct security_operations *ops){ if (verify(ops)) { printk(KERN_DEBUG "%s could not verify " "security_operations structure.\n", __func__); return -EINVAL; } if (security_ops != &default_security_ops) return -EAGAIN; security_ops = ops; return 0;} /* Security operations */ int security_ptrace_may_access(struct task_struct *child, unsigned int mode){ return security_ops->ptrace_may_access(child, mode);} int security_ptrace_traceme(struct task_struct *parent){ return security_ops->ptrace_traceme(parent);} int security_capget(struct task_struct *target, kernel_cap_t *effective, kernel_cap_t *inheritable, kernel_cap_t *permitted){ return security_ops->capget(target, effective, inheritable, permitted);} int security_capset_check(struct task_struct *target, kernel_cap_t *effective, kernel_cap_t *inheritable, kernel_cap_t *permitted){ return security_ops->capset_check(target, effective, inheritable, permitted);} void security_capset_set(struct task_struct *target, kernel_cap_t *effective, kernel_cap_t *inheritable, kernel_cap_t *permitted){ security_ops->capset_set(target, effective, inheritable, permitted);} int security_capable(struct task_struct *tsk, int cap){ return security_ops->capable(tsk, cap);} int security_acct(struct file *file){ return security_ops->acct(file);} int security_sysctl(struct ctl_table *table, int op){ return security_ops->sysctl(table, op);} int security_quotactl(int cmds, int type, int id, struct super_block *sb){ return security_ops->quotactl(cmds, type, id, sb);} int security_quota_on(struct dentry *dentry){ return security_ops->quota_on(dentry);} int security_syslog(int type){ return security_ops->syslog(type);} int security_settime(struct timespec *ts, struct timezone *tz){ return security_ops->settime(ts, tz);} int security_vm_enough_memory(long pages){ WARN_ON(current->mm == NULL); return security_ops->vm_enough_memory(current->mm, pages);} int security_vm_enough_memory_mm(struct mm_struct *mm, long pages){ WARN_ON(mm == NULL); return security_ops->vm_enough_memory(mm, pages);} int security_vm_enough_memory_kern(long pages){ /* If current->mm is a kernel thread then we will pass NULL, for this specific case that is fine */ return security_ops->vm_enough_memory(current->mm, pages);} int security_bprm_alloc(struct linux_binprm *bprm){ return security_ops->bprm_alloc_security(bprm);} void security_bprm_free(struct linux_binprm *bprm){ security_ops->bprm_free_security(bprm);} void security_bprm_apply_creds(struct linux_binprm *bprm, int unsafe){ security_ops->bprm_apply_creds(bprm, unsafe);} void security_bprm_post_apply_creds(struct linux_binprm *bprm){ security_ops->bprm_post_apply_creds(bprm);} int security_bprm_set(struct linux_binprm *bprm){ return security_ops->bprm_set_security(bprm);} int security_bprm_check(struct linux_binprm *bprm){ return security_ops->bprm_check_security(bprm);} int security_bprm_secureexec(struct linux_binprm *bprm){ return security_ops->bprm_secureexec(bprm);} int security_sb_alloc(struct super_block *sb){ return security_ops->sb_alloc_security(sb);} void security_sb_free(struct super_block *sb){ security_ops->sb_free_security(sb);} int security_sb_copy_data(char *orig, char *copy){ return security_ops->sb_copy_data(orig, copy);}EXPORT_SYMBOL(security_sb_copy_data); int security_sb_kern_mount(struct super_block *sb, void *data){ return security_ops->sb_kern_mount(sb, data);} int security_sb_show_options(struct seq_file *m, struct super_block *sb){ return security_ops->sb_show_options(m, sb);} int security_sb_statfs(struct dentry *dentry){ return security_ops->sb_statfs(dentry);} int security_sb_mount(char *dev_name, struct path *path, char *type, unsigned long flags, void *data){ return security_ops->sb_mount(dev_name, path, type, flags, data);} int security_sb_check_sb(struct vfsmount *mnt, struct path *path){ return security_ops->sb_check_sb(mnt, path);} int security_sb_umount(struct vfsmount *mnt, int flags){ return security_ops->sb_umount(mnt, flags);} void security_sb_umount_close(struct vfsmount *mnt){ security_ops->sb_umount_close(mnt);} void security_sb_umount_busy(struct vfsmount *mnt){ security_ops->sb_umount_busy(mnt);} void security_sb_post_remount(struct vfsmount *mnt, unsigned long flags, void *data){ security_ops->sb_post_remount(mnt, flags, data);} void security_sb_post_addmount(struct vfsmount *mnt, struct path *mountpoint){ security_ops->sb_post_addmount(mnt, mountpoint);} int security_sb_pivotroot(struct path *old_path, struct path *new_path){ return security_ops->sb_pivotroot(old_path, new_path);} void security_sb_post_pivotroot(struct path *old_path, struct path *new_path){ security_ops->sb_post_pivotroot(old_path, new_path);} int security_sb_set_mnt_opts(struct super_block *sb, struct security_mnt_opts *opts){ return security_ops->sb_set_mnt_opts(sb, opts);}EXPORT_SYMBOL(security_sb_set_mnt_opts); void security_sb_clone_mnt_opts(const struct super_block *oldsb, struct super_block *newsb){ security_ops->sb_clone_mnt_opts(oldsb, newsb);}EXPORT_SYMBOL(security_sb_clone_mnt_opts); int security_sb_parse_opts_str(char *options, struct security_mnt_opts *opts){ return security_ops->sb_parse_opts_str(options, opts);}EXPORT_SYMBOL(security_sb_parse_opts_str); int security_inode_alloc(struct inode *inode){ inode->i_security = NULL; return security_ops->inode_alloc_security(inode);} void security_inode_free(struct inode *inode){ security_ops->inode_free_security(inode);} int security_inode_init_security(struct inode *inode, struct inode *dir, char **name, void **value, size_t *len){ if (unlikely(IS_PRIVATE(inode))) return -EOPNOTSUPP; return security_ops->inode_init_security(inode, dir, name, value, len);}EXPORT_SYMBOL(security_inode_init_security); int security_inode_create(struct inode *dir, struct dentry *dentry, int mode){ if (unlikely(IS_PRIVATE(dir))) return 0; return security_ops->inode_create(dir, dentry, mode);} int security_inode_link(struct dentry *old_dentry, struct inode *dir, struct dentry *new_dentry){ if (unlikely(IS_PRIVATE(old_dentry->d_inode))) return 0; return security_ops->inode_link(old_dentry, dir, new_dentry);} int security_inode_unlink(struct inode *dir, struct dentry *dentry){ if (unlikely(IS_PRIVATE(dentry->d_inode))) return 0; return security_ops->inode_unlink(dir, dentry);} int security_inode_symlink(struct inode *dir, struct dentry *dentry, const char *old_name){ if (unlikely(IS_PRIVATE(dir))) return 0; return security_ops->inode_symlink(dir, dentry, old_name);} int security_inode_mkdir(struct inode *dir, struct dentry *dentry, int mode){ if (unlikely(IS_PRIVATE(dir))) return 0; return security_ops->inode_mkdir(dir, dentry, mode);} int security_inode_rmdir(struct inode *dir, struct dentry *dentry){ if (unlikely(IS_PRIVATE(dentry->d_inode))) return 0; return security_ops->inode_rmdir(dir, dentry);} int security_inode_mknod(struct inode *dir, struct dentry *dentry, int mode, dev_t dev){ if (unlikely(IS_PRIVATE(dir))) return 0; return security_ops->inode_mknod(dir, dentry, mode, dev);} int security_inode_rename(struct inode *old_dir, struct dentry *old_dentry, struct inode *new_dir, struct dentry *new_dentry){ if (unlikely(IS_PRIVATE(old_dentry->d_inode) || (new_dentry->d_inode && IS_PRIVATE(new_dentry->d_inode)))) return 0; return security_ops->inode_rename(old_dir, old_dentry, new_dir, new_dentry);} int security_inode_readlink(struct dentry *dentry){ if (unlikely(IS_PRIVATE(dentry->d_inode))) return 0; return security_ops->inode_readlink(dentry);} int security_inode_follow_link(struct dentry *dentry, struct nameidata *nd){ if (unlikely(IS_PRIVATE(dentry->d_inode))) return 0; return security_ops->inode_follow_link(dentry, nd);} int security_inode_permission(struct inode *inode, int mask){ if (unlikely(IS_PRIVATE(inode))) return 0; return security_ops->inode_permission(inode, mask);} int security_inode_setattr(struct dentry *dentry, struct iattr *attr){ if (unlikely(IS_PRIVATE(dentry->d_inode))) return 0; return security_ops->inode_setattr(dentry, attr);}EXPORT_SYMBOL_GPL(security_inode_setattr); int security_inode_getattr(struct vfsmount *mnt, struct dentry *dentry){ if (unlikely(IS_PRIVATE(dentry->d_inode))) return 0; return security_ops->inode_getattr(mnt, dentry);} void security_inode_delete(struct inode *inode){ if (unlikely(IS_PRIVATE(inode))) return; security_ops->inode_delete(inode);} int security_inode_setxattr(struct dentry *dentry, const char *name, const void *value, size_t size, int flags){ if (unlikely(IS_PRIVATE(dentry->d_inode))) return 0; return security_ops->inode_setxattr(dentry, name, value, size, flags);} void security_inode_post_setxattr(struct dentry *dentry, const char *name, const void *value, size_t size, int flags){ if (unlikely(IS_PRIVATE(dentry->d_inode))) return; security_ops->inode_post_setxattr(dentry, name, value, size, flags);} int security_inode_getxattr(struct dentry *dentry, const char *name){ if (unlikely(IS_PRIVATE(dentry->d_inode))) return 0; return security_ops->inode_getxattr(dentry, name);} int security_inode_listxattr(struct dentry *dentry){ if (unlikely(IS_PRIVATE(dentry->d_inode))) return 0;Lines 1–500 of 1169. 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/* * Security plug functions * * Copyright (C) 2001 WireX Communications, Inc <chris@wirex.com> * Copyright (C) 2001-2002 Greg Kroah-Hartman <greg@kroah.com> * Copyright (C) 2001 Networks Associates Technology, Inc <ssmalley@nai.com> * * 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. */ #include <linux/capability.h> #include <linux/module.h> #include <linux/init.h> #include <linux/kernel.h> #include <linux/security.h> /* Boot-time LSM user choice */ static __initdata char chosen_lsm[SECURITY_NAME_MAX + 1]; /* things that live in capability.c */ extern struct security_operations default_security_ops; extern void security_fixup_ops(struct security_operations *ops); struct security_operations *security_ops; /* Initialized to NULL */ /* amount of vm to protect from userspace access */ unsigned long mmap_min_addr = CONFIG_SECURITY_DEFAULT_MMAP_MIN_ADDR; static inline int verify(struct security_operations *ops) { /* verify the security_operations structure exists */ if (!ops) return -EINVAL; security_fixup_ops(ops); return 0; } static void __init do_security_initcalls(void) { initcall_t *call; call = __security_initcall_start; while (call < __security_initcall_end) { (*call) (); call++; } } /** * security_init - initializes the security framework * * This should be called early in the kernel initialization sequence. */ int __init security_init(void) { printk(KERN_INFO "Security Framework initialized\n"); security_fixup_ops(&default_security_ops); security_ops = &default_security_ops; do_security_initcalls(); return 0; } /* Save user chosen LSM */ static int __init choose_lsm(char *str) { strncpy(chosen_lsm, str, SECURITY_NAME_MAX); return 1; } __setup("security=", choose_lsm); /** * security_module_enable - Load given security module on boot ? * @ops: a pointer to the struct security_operations that is to be checked. * * Each LSM must pass this method before registering its own operations * to avoid security registration races. This method may also be used * to check if your LSM is currently loaded during kernel initialization. * * Return true if: * -The passed LSM is the one chosen by user at boot time, * -or user didn't specify a specific LSM and we're the first to ask * for registration permission, * -or the passed LSM is currently loaded. * Otherwise, return false. */ int __init security_module_enable(struct security_operations *ops) { if (!*chosen_lsm) strncpy(chosen_lsm, ops->name, SECURITY_NAME_MAX); else if (strncmp(ops->name, chosen_lsm, SECURITY_NAME_MAX)) return 0; return 1; } /** * register_security - registers a security framework with the kernel * @ops: a pointer to the struct security_options that is to be registered * * This function allows a security module to register itself with the * kernel security subsystem. Some rudimentary checking is done on the @ops * value passed to this function. You'll need to check first if your LSM * is allowed to register its @ops by calling security_module_enable(@ops). * * If there is already a security module registered with the kernel, * an error will be returned. Otherwise %0 is returned on success. */ int register_security(struct security_operations *ops) { if (verify(ops)) { printk(KERN_DEBUG "%s could not verify " "security_operations structure.\n", __func__); return -EINVAL; } if (security_ops != &default_security_ops) return -EAGAIN; security_ops = ops; return 0; } /* Security operations */ int security_ptrace_may_access(struct task_struct *child, unsigned int mode) { return security_ops->ptrace_may_access(child, mode); } int security_ptrace_traceme(struct task_struct *parent) { return security_ops->ptrace_traceme(parent); } int security_capget(struct task_struct *target, kernel_cap_t *effective, kernel_cap_t *inheritable, kernel_cap_t *permitted) { return security_ops->capget(target, effective, inheritable, permitted); } int security_capset_check(struct task_struct *target, kernel_cap_t *effective, kernel_cap_t *inheritable, kernel_cap_t *permitted) { return security_ops->capset_check(target, effective, inheritable, permitted); } void security_capset_set(struct task_struct *target, kernel_cap_t *effective, kernel_cap_t *inheritable, kernel_cap_t *permitted) { security_ops->capset_set(target, effective, inheritable, permitted); } int security_capable(struct task_struct *tsk, int cap) { return security_ops->capable(tsk, cap); } int security_acct(struct file *file) { return security_ops->acct(file); } int security_sysctl(struct ctl_table *table, int op) { return security_ops->sysctl(table, op); } int security_quotactl(int cmds, int type, int id, struct super_block *sb) { return security_ops->quotactl(cmds, type, id, sb); } int security_quota_on(struct dentry *dentry) { return security_ops->quota_on(dentry); } int security_syslog(int type) { return security_ops->syslog(type); } int security_settime(struct timespec *ts, struct timezone *tz) { return security_ops->settime(ts, tz); } int security_vm_enough_memory(long pages) { WARN_ON(current->mm == NULL); return security_ops->vm_enough_memory(current->mm, pages); } int security_vm_enough_memory_mm(struct mm_struct *mm, long pages) { WARN_ON(mm == NULL); return security_ops->vm_enough_memory(mm, pages); } int security_vm_enough_memory_kern(long pages) { /* If current->mm is a kernel thread then we will pass NULL, for this specific case that is fine */ return security_ops->vm_enough_memory(current->mm, pages); } int security_bprm_alloc(struct linux_binprm *bprm) { return security_ops->bprm_alloc_security(bprm); } void security_bprm_free(struct linux_binprm *bprm) { security_ops->bprm_free_security(bprm); } void security_bprm_apply_creds(struct linux_binprm *bprm, int unsafe) { security_ops->bprm_apply_creds(bprm, unsafe); } void security_bprm_post_apply_creds(struct linux_binprm *bprm) { security_ops->bprm_post_apply_creds(bprm); } int security_bprm_set(struct linux_binprm *bprm) { return security_ops->bprm_set_security(bprm); } int security_bprm_check(struct linux_binprm *bprm) { return security_ops->bprm_check_security(bprm); } int security_bprm_secureexec(struct linux_binprm *bprm) { return security_ops->bprm_secureexec(bprm); } int security_sb_alloc(struct super_block *sb) { return security_ops->sb_alloc_security(sb); } void security_sb_free(struct super_block *sb) { security_ops->sb_free_security(sb); } int security_sb_copy_data(char *orig, char *copy) { return security_ops->sb_copy_data(orig, copy); } EXPORT_SYMBOL(security_sb_copy_data); int security_sb_kern_mount(struct super_block *sb, void *data) { return security_ops->sb_kern_mount(sb, data); } int security_sb_show_options(struct seq_file *m, struct super_block *sb) { return security_ops->sb_show_options(m, sb); } int security_sb_statfs(struct dentry *dentry) { return security_ops->sb_statfs(dentry); } int security_sb_mount(char *dev_name, struct path *path, char *type, unsigned long flags, void *data) { return security_ops->sb_mount(dev_name, path, type, flags, data); } int security_sb_check_sb(struct vfsmount *mnt, struct path *path) { return security_ops->sb_check_sb(mnt, path); } int security_sb_umount(struct vfsmount *mnt, int flags) { return security_ops->sb_umount(mnt, flags); } void security_sb_umount_close(struct vfsmount *mnt) { security_ops->sb_umount_close(mnt); } void security_sb_umount_busy(struct vfsmount *mnt) { security_ops->sb_umount_busy(mnt); } void security_sb_post_remount(struct vfsmount *mnt, unsigned long flags, void *data) { security_ops->sb_post_remount(mnt, flags, data); } void security_sb_post_addmount(struct vfsmount *mnt, struct path *mountpoint) { security_ops->sb_post_addmount(mnt, mountpoint); } int security_sb_pivotroot(struct path *old_path, struct path *new_path) { return security_ops->sb_pivotroot(old_path, new_path); } void security_sb_post_pivotroot(struct path *old_path, struct path *new_path) { security_ops->sb_post_pivotroot(old_path, new_path); } int security_sb_set_mnt_opts(struct super_block *sb, struct security_mnt_opts *opts) { return security_ops->sb_set_mnt_opts(sb, opts); } EXPORT_SYMBOL(security_sb_set_mnt_opts); void security_sb_clone_mnt_opts(const struct super_block *oldsb, struct super_block *newsb) { security_ops->sb_clone_mnt_opts(oldsb, newsb); } EXPORT_SYMBOL(security_sb_clone_mnt_opts); int security_sb_parse_opts_str(char *options, struct security_mnt_opts *opts) { return security_ops->sb_parse_opts_str(options, opts); } EXPORT_SYMBOL(security_sb_parse_opts_str); int security_inode_alloc(struct inode *inode) { inode->i_security = NULL; return security_ops->inode_alloc_security(inode); } void security_inode_free(struct inode *inode) { security_ops->inode_free_security(inode); } int security_inode_init_security(struct inode *inode, struct inode *dir, char **name, void **value, size_t *len) { if (unlikely(IS_PRIVATE(inode))) return -EOPNOTSUPP; return security_ops->inode_init_security(inode, dir, name, value, len); } EXPORT_SYMBOL(security_inode_init_security); int security_inode_create(struct inode *dir, struct dentry *dentry, int mode) { if (unlikely(IS_PRIVATE(dir))) return 0; return security_ops->inode_create(dir, dentry, mode); } int security_inode_link(struct dentry *old_dentry, struct inode *dir, struct dentry *new_dentry) { if (unlikely(IS_PRIVATE(old_dentry->d_inode))) return 0; return security_ops->inode_link(old_dentry, dir, new_dentry); } int security_inode_unlink(struct inode *dir, struct dentry *dentry) { if (unlikely(IS_PRIVATE(dentry->d_inode))) return 0; return security_ops->inode_unlink(dir, dentry); } int security_inode_symlink(struct inode *dir, struct dentry *dentry, const char *old_name) { if (unlikely(IS_PRIVATE(dir))) return 0; return security_ops->inode_symlink(dir, dentry, old_name); } int security_inode_mkdir(struct inode *dir, struct dentry *dentry, int mode) { if (unlikely(IS_PRIVATE(dir))) return 0; return security_ops->inode_mkdir(dir, dentry, mode); } int security_inode_rmdir(struct inode *dir, struct dentry *dentry) { if (unlikely(IS_PRIVATE(dentry->d_inode))) return 0; return security_ops->inode_rmdir(dir, dentry); } int security_inode_mknod(struct inode *dir, struct dentry *dentry, int mode, dev_t dev) { if (unlikely(IS_PRIVATE(dir))) return 0; return security_ops->inode_mknod(dir, dentry, mode, dev); } int security_inode_rename(struct inode *old_dir, struct dentry *old_dentry, struct inode *new_dir, struct dentry *new_dentry) { if (unlikely(IS_PRIVATE(old_dentry->d_inode) || (new_dentry->d_inode && IS_PRIVATE(new_dentry->d_inode)))) return 0; return security_ops->inode_rename(old_dir, old_dentry, new_dir, new_dentry); } int security_inode_readlink(struct dentry *dentry) { if (unlikely(IS_PRIVATE(dentry->d_inode))) return 0; return security_ops->inode_readlink(dentry); } int security_inode_follow_link(struct dentry *dentry, struct nameidata *nd) { if (unlikely(IS_PRIVATE(dentry->d_inode))) return 0; return security_ops->inode_follow_link(dentry, nd); } int security_inode_permission(struct inode *inode, int mask) { if (unlikely(IS_PRIVATE(inode))) return 0; return security_ops->inode_permission(inode, mask); } int security_inode_setattr(struct dentry *dentry, struct iattr *attr) { if (unlikely(IS_PRIVATE(dentry->d_inode))) return 0; return security_ops->inode_setattr(dentry, attr); } EXPORT_SYMBOL_GPL(security_inode_setattr); int security_inode_getattr(struct vfsmount *mnt, struct dentry *dentry) { if (unlikely(IS_PRIVATE(dentry->d_inode))) return 0; return security_ops->inode_getattr(mnt, dentry); } void security_inode_delete(struct inode *inode) { if (unlikely(IS_PRIVATE(inode))) return; security_ops->inode_delete(inode); } int security_inode_setxattr(struct dentry *dentry, const char *name, const void *value, size_t size, int flags) { if (unlikely(IS_PRIVATE(dentry->d_inode))) return 0; return security_ops->inode_setxattr(dentry, name, value, size, flags); } void security_inode_post_setxattr(struct dentry *dentry, const char *name, const void *value, size_t size, int flags) { if (unlikely(IS_PRIVATE(dentry->d_inode))) return; security_ops->inode_post_setxattr(dentry, name, value, size, flags); } int security_inode_getxattr(struct dentry *dentry, const char *name) { if (unlikely(IS_PRIVATE(dentry->d_inode))) return 0; return security_ops->inode_getxattr(dentry, name); } int security_inode_listxattr(struct dentry *dentry) { if (unlikely(IS_PRIVATE(dentry->d_inode))) return 0;