/* * 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> #include <linux/integrity.h> #include <linux/ima.h> #include <linux/evm.h> #include <linux/fsnotify.h> #include <linux/mman.h> #include <linux/mount.h> #include <linux/personality.h> #include <linux/backing-dev.h> #include <net/flow.h> #define MAX_LSM_EVM_XATTR 2 /* Boot-time LSM user choice */ static __initdata char chosen_lsm[SECURITY_NAME_MAX + 1] = CONFIG_DEFAULT_SECURITY; static struct security_operations *security_ops; static struct security_operations default_security_ops = { .name = "default", }; static inline int __init 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; } void reset_security_ops(void) { security_ops = &default_security_ops; } /* 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 the passed LSM is configured as the default and the user did not * choose an alternate LSM at boot time. * Otherwise, return false. */ int __init security_module_enable(struct security_operations *ops) { return !strcmp(ops->name, chosen_lsm); } /** * 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 __init 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_access_check(struct task_struct *child, unsigned int mode) { return security_ops->ptrace_access_check(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(struct cred *new, const struct cred *old, const kernel_cap_t *effective, const kernel_cap_t *inheritable, const kernel_cap_t *permitted) { return security_ops->capset(new, old, effective, inheritable, permitted); } int security_capable(const struct cred *cred, struct user_namespace *ns, int cap) { return security_ops->capable(cred, ns, cap, SECURITY_CAP_AUDIT); } int security_capable_noaudit(const struct cred *cred, struct user_namespace *ns, int cap) { return security_ops->capable(cred, ns, cap, SECURITY_CAP_NOAUDIT); } 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(const struct timespec *ts, const struct timezone *tz) { return security_ops->settime(ts, tz); } int security_vm_enough_memory_mm(struct mm_struct *mm, long pages) { return security_ops->vm_enough_memory(mm, pages); } int security_bprm_set_creds(struct linux_binprm *bprm) { return security_ops->bprm_set_creds(bprm); } int security_bprm_check(struct linux_binprm *bprm) { int ret; ret = security_ops->bprm_check_security(bprm); if (ret) return ret; return ima_bprm_check(bprm); } void security_bprm_committing_creds(struct linux_binprm *bprm) { security_ops->bprm_committing_creds(bprm); } void security_bprm_committed_creds(struct linux_binprm *bprm) { security_ops->bprm_committed_creds(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_remount(struct super_block *sb, void *data) { return security_ops->sb_remount(sb, data); } int security_sb_kern_mount(struct super_block *sb, int flags, void *data) { return security_ops->sb_kern_mount(sb, flags, 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_umount(struct vfsmount *mnt, int flags) { return security_ops->sb_umount(mnt, flags); } int security_sb_pivotroot(struct path *old_path, struct path *new_path) { return security_ops->sb_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) { integrity_inode_free(inode); security_ops->inode_free_security(inode); } int security_inode_init_security(struct inode *inode, struct inode *dir, const struct qstr *qstr, const initxattrs initxattrs, void *fs_data) { struct xattr new_xattrs[MAX_LSM_EVM_XATTR + 1]; struct xattr *lsm_xattr, *evm_xattr, *xattr; int ret; if (unlikely(IS_PRIVATE(inode))) return 0; memset(new_xattrs, 0, sizeof new_xattrs); if (!initxattrs) return security_ops->inode_init_security(inode, dir, qstr, NULL, NULL, NULL); lsm_xattr = new_xattrs; ret = security_ops->inode_init_security(inode, dir, qstr, &lsm_xattr->name, &lsm_xattr->value, &lsm_xattr->value_len); if (ret) goto out; evm_xattr = lsm_xattr + 1; ret = evm_inode_init_security(inode, lsm_xattr, evm_xattr); if (ret) goto out; ret = initxattrs(inode, new_xattrs, fs_data); out: for (xattr = new_xattrs; xattr->name != NULL; xattr++) { kfree(xattr->name); kfree(xattr->value); } return (ret == -EOPNOTSUPP) ? 0 : ret; } EXPORT_SYMBOL(security_inode_init_security); int security_old_inode_init_security(struct inode *inode, struct inode *dir, const struct qstr *qstr, char **name, void **value, size_t *len) { if (unlikely(IS_PRIVATE(inode))) return -EOPNOTSUPP; return security_ops->inode_init_security(inode, dir, qstr, name, value, len); } EXPORT_SYMBOL(security_old_inode_init_security); #ifdef CONFIG_SECURITY_PATH int security_path_mknod(struct path *dir, struct dentry *dentry, umode_t mode, unsigned int dev) { if (unlikely(IS_PRIVATE(dir->dentry->d_inode))) return 0; return security_ops->path_mknod(dir, dentry, mode, dev); } EXPORT_SYMBOL(security_path_mknod); int security_path_mkdir(struct path *dir, struct dentry *dentry, umode_t mode) { if (unlikely(IS_PRIVATE(dir->dentry->d_inode))) return 0; return security_ops->path_mkdir(dir, dentry, mode); } EXPORT_SYMBOL(security_path_mkdir); int security_path_rmdir(struct path *dir, struct dentry *dentry) { if (unlikely(IS_PRIVATE(dir->dentry->d_inode))) return 0; return security_ops->path_rmdir(dir, dentry); } int security_path_unlink(struct path *dir, struct dentry *dentry) { if (unlikely(IS_PRIVATE(dir->dentry->d_inode))) return 0; return security_ops->path_unlink(dir, dentry); } EXPORT_SYMBOL(security_path_unlink); int security_path_symlink(struct path *dir, struct dentry *dentry, const char *old_name) { if (unlikely(IS_PRIVATE(dir->dentry->d_inode))) return 0; return security_ops->path_symlink(dir, dentry, old_name); } int security_path_link(struct dentry *old_dentry, struct path *new_dir, struct dentry *new_dentry) { if (unlikely(IS_PRIVATE(old_dentry->d_inode))) return 0; return security_ops->path_link(old_dentry, new_dir, new_dentry); } int security_path_rename(struct path *old_dir, struct dentry *old_dentry, struct path *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->path_rename(old_dir, old_dentry, new_dir, new_dentry); } EXPORT_SYMBOL(security_path_rename); int security_path_truncate(struct path *path) { if (unlikely(IS_PRIVATE(path->dentry->d_inode))) return 0; return security_ops->path_truncate(path); } int security_path_chmod(struct path *path, umode_t mode) { if (unlikely(IS_PRIVATE(path->dentry->d_inode))) return 0; return security_ops->path_chmod(path, mode); } int security_path_chown(struct path *path, uid_t uid, gid_t gid) { if (unlikely(IS_PRIVATE(path->dentry->d_inode))) return 0; return security_ops->path_chown(path, uid, gid); } int security_path_chroot(struct path *path) { return security_ops->path_chroot(path); } #endif int security_inode_create(struct inode *dir, struct dentry *dentry, umode_t mode) { if (unlikely(IS_PRIVATE(dir))) return 0; return security_ops->inode_create(dir, dentry, mode); } EXPORT_SYMBOL_GPL(security_inode_create); 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, umode_t mode) { if (unlikely(IS_PRIVATE(dir))) return 0; return security_ops->inode_mkdir(dir, dentry, mode); } EXPORT_SYMBOL_GPL(security_inode_mkdir); 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, umode_t 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) { int ret; if (unlikely(IS_PRIVATE(dentry->d_inode))) return 0; ret = security_ops->inode_setattr(dentry, attr); if (ret) return ret; return evm_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); } int security_inode_setxattr(struct dentry *dentry, const char *name, const void *value, size_t size, int flags) { int ret; if (unlikely(IS_PRIVATE(dentry->d_inode))) return 0; ret = security_ops->inode_setxattr(dentry, name, value, size, flags); if (ret) return ret; return evm_inode_setxattr(dentry, name, value, size); } 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); evm_inode_post_setxattr(dentry, name, value, size); } 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; return security_ops->inode_listxattr(dentry); } int security_inode_removexattr(struct dentry *dentry, const char *name) { int ret; if (unlikely(IS_PRIVATE(dentry->d_inode))) return 0; ret = security_ops->inode_removexattr(dentry, name); if (ret) return ret; return evm_inode_removexattr(dentry, name); } int security_inode_need_killpriv(struct dentry *dentry) { return security_ops->inode_need_killpriv(dentry); } int security_inode_killpriv(struct dentry *dentry) { return security_ops->inode_killpriv(dentry); } int security_inode_getsecurity(const struct inode *inode, const char *name, void **buffer, bool alloc) { if (unlikely(IS_PRIVATE(inode))) return -EOPNOTSUPP; return security_ops->inode_getsecurity(inode, name, buffer, alloc); } int security_inode_setsecurity(struct inode *inode, const char *name, const void *value, size_t size, int flags) { if (unlikely(IS_PRIVATE(inode))) return -EOPNOTSUPP; return security_ops->inode_setsecurity(inode, name, value, size, flags); } int security_inode_listsecurity(struct inode *inode, char *buffer, size_t buffer_size) { if (unlikely(IS_PRIVATE(inode))) return 0; return security_ops->inode_listsecurity(inode, buffer, buffer_size); } void security_inode_getsecid(const struct inode *inode, u32 *secid) { security_ops->inode_getsecid(inode, secid); } int security_file_permission(struct file *file, int mask) { int ret; ret = security_ops->file_permission(file, mask); if (ret) return ret; return fsnotify_perm(file, mask); } int security_file_alloc(struct file *file) { return security_ops->file_alloc_security(file); } void security_file_free(struct file *file) { security_ops->file_free_security(file); } int security_file_ioctl(struct file *file, unsigned int cmd, unsigned long arg) { return security_ops->file_ioctl(file, cmd, arg); } static inline unsigned long mmap_prot(struct file *file, unsigned long prot) { /* * Does we have PROT_READ and does the application expect * it to imply PROT_EXEC? If not, nothing to talk about... */ if ((prot & (PROT_READ | PROT_EXEC)) != PROT_READ) return prot; if (!(current->personality & READ_IMPLIES_EXEC)) return prot; /* * if that's an anonymous mapping, let it. */ if (!file) return prot | PROT_EXEC; /* * ditto if it's not on noexec mount, except that on !MMU we need * BDI_CAP_EXEC_MMAP (== VM_MAYEXEC) in this case */ if (!(file->f_path.mnt->mnt_flags & MNT_NOEXEC)) { #ifndef CONFIG_MMU unsigned long caps = 0; struct address_space *mapping = file->f_mapping; if (mapping && mapping->backing_dev_info) caps = mapping->backing_dev_info->capabilities; if (!(caps & BDI_CAP_EXEC_MAP)) return prot; #endif return prot | PROT_EXEC; } /* anything on noexec mount won't get PROT_EXEC */ return prot; } int security_mmap_file(struct file *file, unsigned long prot, unsigned long flags) { int ret; ret = security_ops->mmap_file(file, prot, mmap_prot(file, prot), flags); if (ret) return ret; return ima_file_mmap(file, prot); } int security_mmap_addr(unsigned long addr) { return security_ops->mmap_addr(addr); } int security_file_mprotect(struct vm_area_struct *vma, unsigned long reqprot, unsigned long prot) { return security_ops->file_mprotect(vma, reqprot, prot); } int security_file_lock(struct file *file, unsigned int cmd) { return security_ops->file_lock(file, cmd); } int security_file_fcntl(struct file *file, unsigned int cmd, unsigned long arg) { return security_ops->file_fcntl(file, cmd, arg); } int security_file_set_fowner(struct file *file) { return security_ops->file_set_fowner(file); } int security_file_send_sigiotask(struct task_struct *tsk, struct fown_struct *fown, int sig) { return security_ops->file_send_sigiotask(tsk, fown, sig); } int security_file_receive(struct file *file) { return security_ops->file_receive(file); } int security_file_open(struct file *file, const struct cred *cred) { int ret; ret = security_ops->file_open(file, cred); if (ret) return ret; return fsnotify_perm(file, MAY_OPEN); } int security_task_create(unsigned long clone_flags) { return security_ops->task_create(clone_flags); } void security_task_free(struct task_struct *task) { security_ops->task_free(task); } int security_cred_alloc_blank(struct cred *cred, gfp_t gfp) { return security_ops->cred_alloc_blank(cred, gfp); } void security_cred_free(struct cred *cred) { security_ops->cred_free(cred); } int security_prepare_creds(struct cred *new, const struct cred *old, gfp_t gfp) { return security_ops->cred_prepare(new, old, gfp); } void security_transfer_creds(struct cred *new, const struct cred *old) { security_ops->cred_transfer(new, old); } int security_kernel_act_as(struct cred *new, u32 secid) { return security_ops->kernel_act_as(new, secid); } int security_kernel_create_files_as(struct cred *new, struct inode *inode) { return security_ops->kernel_create_files_as(new, inode); } int security_kernel_module_request(char *kmod_name) { return security_ops->kernel_module_request(kmod_name); } int security_task_fix_setuid(struct cred *new, const struct cred *old, int flags) { return security_ops->task_fix_setuid(new, old, flags); } int security_task_setpgid(struct task_struct *p, pid_t pgid) { return security_ops->task_setpgid(p, pgid); } int security_task_getpgid(struct task_struct *p) { return security_ops->task_getpgid(p); } int security_task_getsid(struct task_struct *p) { return security_ops->task_getsid(p); } void security_task_getsecid(struct task_struct *p, u32 *secid) { security_ops->task_getsecid(p, secid); } EXPORT_SYMBOL(security_task_getsecid); int security_task_setnice(struct task_struct *p, int nice) { return security_ops->task_setnice(p, nice); } int security_task_setioprio(struct task_struct *p, int ioprio) { return security_ops->task_setioprio(p, ioprio); } int security_task_getioprio(struct task_struct *p) { return security_ops->task_getioprio(p); } int security_task_setrlimit(struct task_struct *p, unsigned int resource, struct rlimit *new_rlim) { return security_ops->task_setrlimit(p, resource, new_rlim); } int security_task_setscheduler(struct task_struct *p) { return security_ops->task_setscheduler(p); } int security_task_getscheduler(struct task_struct *p) { return security_ops->task_getscheduler(p); } int security_task_movememory(struct task_struct *p) { return security_ops->task_movememory(p); } int security_task_kill(struct task_struct *p, struct siginfo *info, int sig, u32 secid) { return security_ops->task_kill(p, info, sig, secid); } int security_task_wait(struct task_struct *p) { return security_ops->task_wait(p); } int security_task_prctl(int option, unsigned long arg2, unsigned long arg3, unsigned long arg4, unsigned long arg5) { return security_ops->task_prctl(option, arg2, arg3, arg4, arg5); } void security_task_to_inode(struct task_struct *p, struct inode *inode) { security_ops->task_to_inode(p, inode); } int security_ipc_permission(struct kern_ipc_perm *ipcp, short flag) { return security_ops->ipc_permission(ipcp, flag); } void security_ipc_getsecid(struct kern_ipc_perm *ipcp, u32 *secid) { security_ops->ipc_getsecid(ipcp, secid); } int security_msg_msg_alloc(struct msg_msg *msg) { return security_ops->msg_msg_alloc_security(msg); } void security_msg_msg_free(struct msg_msg *msg) { security_ops->msg_msg_free_security(msg); } int security_msg_queue_alloc(struct msg_queue *msq) { return security_ops->msg_queue_alloc_security(msq); } void security_msg_queue_free(struct msg_queue *msq) { security_ops->msg_queue_free_security(msq); } int security_msg_queue_associate(struct msg_queue *msq, int msqflg) { return security_ops->msg_queue_associate(msq, msqflg); } int security_msg_queue_msgctl(struct msg_queue *msq, int cmd) { return security_ops->msg_queue_msgctl(msq, cmd); } int security_msg_queue_msgsnd(struct msg_queue *msq, struct msg_msg *msg, int msqflg) { return security_ops->msg_queue_msgsnd(msq, msg, msqflg); } int security_msg_queue_msgrcv(struct msg_queue *msq, struct msg_msg *msg, struct task_struct *target, long type, int mode) { return security_ops->msg_queue_msgrcv(msq, msg, target, type, mode); } int security_shm_alloc(struct shmid_kernel *shp) { return security_ops->shm_alloc_security(shp); } void security_shm_free(struct shmid_kernel *shp) { security_ops->shm_free_security(shp); } int security_shm_associate(struct shmid_kernel *shp, int shmflg) { return security_ops->shm_associate(shp, shmflg); } int security_shm_shmctl(struct shmid_kernel *shp, int cmd) { return security_ops->shm_shmctl(shp, cmd); } int security_shm_shmat(struct shmid_kernel *shp, char __user *shmaddr, int shmflg) { return security_ops->shm_shmat(shp, shmaddr, shmflg); } int security_sem_alloc(struct sem_array *sma) { return security_ops->sem_alloc_security(sma); } void security_sem_free(struct sem_array *sma) { security_ops->sem_free_security(sma); } int security_sem_associate(struct sem_array *sma, int semflg) { return security_ops->sem_associate(sma, semflg); } int security_sem_semctl(struct sem_array *sma, int cmd) { return security_ops->sem_semctl(sma, cmd); } int security_sem_semop(struct sem_array *sma, struct sembuf *sops, unsigned nsops, int alter) { return security_ops->sem_semop(sma, sops, nsops, alter); } void security_d_instantiate(struct dentry *dentry, struct inode *inode) { if (unlikely(inode && IS_PRIVATE(inode))) return; security_ops->d_instantiate(dentry, inode); } EXPORT_SYMBOL(security_d_instantiate); int security_getprocattr(struct task_struct *p, char *name, char **value) { return security_ops->getprocattr(p, name, value); } int security_setprocattr(struct task_struct *p, char *name, void *value, size_t size) { return security_ops->setprocattr(p, name, value, size); } int security_netlink_send(struct sock *sk, struct sk_buff *skb) { return security_ops->netlink_send(sk, skb); } int security_secid_to_secctx(u32 secid, char **secdata, u32 *seclen) { return security_ops->secid_to_secctx(secid, secdata, seclen); } EXPORT_SYMBOL(security_secid_to_secctx); int security_secctx_to_secid(const char *secdata, u32 seclen, u32 *secid) { return security_ops->secctx_to_secid(secdata, seclen, secid); } EXPORT_SYMBOL(security_secctx_to_secid); void security_release_secctx(char *secdata, u32 seclen) { security_ops->release_secctx(secdata, seclen); } EXPORT_SYMBOL(security_release_secctx); int security_inode_notifysecctx(struct inode *inode, void *ctx, u32 ctxlen) { return security_ops->inode_notifysecctx(inode, ctx, ctxlen); } EXPORT_SYMBOL(security_inode_notifysecctx); int security_inode_setsecctx(struct dentry *dentry, void *ctx, u32 ctxlen) { return security_ops->inode_setsecctx(dentry, ctx, ctxlen); } EXPORT_SYMBOL(security_inode_setsecctx); int security_inode_getsecctx(struct inode *inode, void **ctx, u32 *ctxlen) { return security_ops->inode_getsecctx(inode, ctx, ctxlen); } EXPORT_SYMBOL(security_inode_getsecctx); #ifdef CONFIG_SECURITY_NETWORK int security_unix_stream_connect(struct sock *sock, struct sock *other, struct sock *newsk) { return security_ops->unix_stream_connect(sock, other, newsk); } EXPORT_SYMBOL(security_unix_stream_connect); int security_unix_may_send(struct socket *sock, struct socket *other) { return security_ops->unix_may_send(sock, other); } EXPORT_SYMBOL(security_unix_may_send); int security_socket_create(int family, int type, int protocol, int kern) { return security_ops->socket_create(family, type, protocol, kern); } int security_socket_post_create(struct socket *sock, int family, int type, int protocol, int kern) { return security_ops->socket_post_create(sock, family, type, protocol, kern); } int security_socket_bind(struct socket *sock, struct sockaddr *address, int addrlen) { return security_ops->socket_bind(sock, address, addrlen); } int security_socket_connect(struct socket *sock, struct sockaddr *address, int addrlen) { return security_ops->socket_connect(sock, address, addrlen); } int security_socket_listen(struct socket *sock, int backlog) { return security_ops->socket_listen(sock, backlog); } int security_socket_accept(struct socket *sock, struct socket *newsock) { return security_ops->socket_accept(sock, newsock); } int security_socket_sendmsg(struct socket *sock, struct msghdr *msg, int size) { return security_ops->socket_sendmsg(sock, msg, size); } int security_socket_recvmsg(struct socket *sock, struct msghdr *msg, int size, int flags) { return security_ops->socket_recvmsg(sock, msg, size, flags); } int security_socket_getsockname(struct socket *sock) { return security_ops->socket_getsockname(sock); } int security_socket_getpeername(struct socket *sock) { return security_ops->socket_getpeername(sock); } int security_socket_getsockopt(struct socket *sock, int level, int optname) { return security_ops->socket_getsockopt(sock, level, optname); } int security_socket_setsockopt(struct socket *sock, int level, int optname) { return security_ops->socket_setsockopt(sock, level, optname); } int security_socket_shutdown(struct socket *sock, int how) { return security_ops->socket_shutdown(sock, how); } int security_sock_rcv_skb(struct sock *sk, struct sk_buff *skb) { return security_ops->socket_sock_rcv_skb(sk, skb); } EXPORT_SYMBOL(security_sock_rcv_skb); int security_socket_getpeersec_stream(struct socket *sock, char __user *optval, int __user *optlen, unsigned len) { return security_ops->socket_getpeersec_stream(sock, optval, optlen, len); } int security_socket_getpeersec_dgram(struct socket *sock, struct sk_buff *skb, u32 *secid) { return security_ops->socket_getpeersec_dgram(sock, skb, secid); } EXPORT_SYMBOL(security_socket_getpeersec_dgram); int security_sk_alloc(struct sock *sk, int family, gfp_t priority) { return security_ops->sk_alloc_security(sk, family, priority); } void security_sk_free(struct sock *sk) { security_ops->sk_free_security(sk); } void security_sk_clone(const struct sock *sk, struct sock *newsk) { security_ops->sk_clone_security(sk, newsk); } EXPORT_SYMBOL(security_sk_clone); void security_sk_classify_flow(struct sock *sk, struct flowi *fl) { security_ops->sk_getsecid(sk, &fl->flowi_secid); } EXPORT_SYMBOL(security_sk_classify_flow); void security_req_classify_flow(const struct request_sock *req, struct flowi *fl) { security_ops->req_classify_flow(req, fl); } EXPORT_SYMBOL(security_req_classify_flow); void security_sock_graft(struct sock *sk, struct socket *parent) { security_ops->sock_graft(sk, parent); } EXPORT_SYMBOL(security_sock_graft); int security_inet_conn_request(struct sock *sk, struct sk_buff *skb, struct request_sock *req) { return security_ops->inet_conn_request(sk, skb, req); } EXPORT_SYMBOL(security_inet_conn_request); void security_inet_csk_clone(struct sock *newsk, const struct request_sock *req) { security_ops->inet_csk_clone(newsk, req); } void security_inet_conn_established(struct sock *sk, struct sk_buff *skb) { security_ops->inet_conn_established(sk, skb); } int security_secmark_relabel_packet(u32 secid) { return security_ops->secmark_relabel_packet(secid); } EXPORT_SYMBOL(security_secmark_relabel_packet); void security_secmark_refcount_inc(void) { security_ops->secmark_refcount_inc(); } EXPORT_SYMBOL(security_secmark_refcount_inc); void security_secmark_refcount_dec(void) { security_ops->secmark_refcount_dec(); } EXPORT_SYMBOL(security_secmark_refcount_dec); int security_tun_dev_create(void) { return security_ops->tun_dev_create(); } EXPORT_SYMBOL(security_tun_dev_create); void security_tun_dev_post_create(struct sock *sk) { return security_ops->tun_dev_post_create(sk); } EXPORT_SYMBOL(security_tun_dev_post_create); int security_tun_dev_attach(struct sock *sk) { return security_ops->tun_dev_attach(sk); } EXPORT_SYMBOL(security_tun_dev_attach); #endif /* CONFIG_SECURITY_NETWORK */ #ifdef CONFIG_SECURITY_NETWORK_XFRM int security_xfrm_policy_alloc(struct xfrm_sec_ctx **ctxp, struct xfrm_user_sec_ctx *sec_ctx) { return security_ops->xfrm_policy_alloc_security(ctxp, sec_ctx); } EXPORT_SYMBOL(security_xfrm_policy_alloc); int security_xfrm_policy_clone(struct xfrm_sec_ctx *old_ctx, struct xfrm_sec_ctx **new_ctxp) { return security_ops->xfrm_policy_clone_security(old_ctx, new_ctxp); } void security_xfrm_policy_free(struct xfrm_sec_ctx *ctx) { security_ops->xfrm_policy_free_security(ctx); } EXPORT_SYMBOL(security_xfrm_policy_free); int security_xfrm_policy_delete(struct xfrm_sec_ctx *ctx) { return security_ops->xfrm_policy_delete_security(ctx); } int security_xfrm_state_alloc(struct xfrm_state *x, struct xfrm_user_sec_ctx *sec_ctx) { return security_ops->xfrm_state_alloc_security(x, sec_ctx, 0); } EXPORT_SYMBOL(security_xfrm_state_alloc); int security_xfrm_state_alloc_acquire(struct xfrm_state *x, struct xfrm_sec_ctx *polsec, u32 secid) { if (!polsec) return 0; /* * We want the context to be taken from secid which is usually * from the sock. */ return security_ops->xfrm_state_alloc_security(x, NULL, secid); } int security_xfrm_state_delete(struct xfrm_state *x) { return security_ops->xfrm_state_delete_security(x); } EXPORT_SYMBOL(security_xfrm_state_delete); void security_xfrm_state_free(struct xfrm_state *x) { security_ops->xfrm_state_free_security(x); } int security_xfrm_policy_lookup(struct xfrm_sec_ctx *ctx, u32 fl_secid, u8 dir) { return security_ops->xfrm_policy_lookup(ctx, fl_secid, dir); } int security_xfrm_state_pol_flow_match(struct xfrm_state *x, struct xfrm_policy *xp, const struct flowi *fl) { return security_ops->xfrm_state_pol_flow_match(x, xp, fl); } int security_xfrm_decode_session(struct sk_buff *skb, u32 *secid) { return security_ops->xfrm_decode_session(skb, secid, 1); } void security_skb_classify_flow(struct sk_buff *skb, struct flowi *fl) { int rc = security_ops->xfrm_decode_session(skb, &fl->flowi_secid, 0); BUG_ON(rc); } EXPORT_SYMBOL(security_skb_classify_flow); #endif /* CONFIG_SECURITY_NETWORK_XFRM */ #ifdef CONFIG_KEYS int security_key_alloc(struct key *key, const struct cred *cred, unsigned long flags) { return security_ops->key_alloc(key, cred, flags); } void security_key_free(struct key *key) { security_ops->key_free(key); } int security_key_permission(key_ref_t key_ref, const struct cred *cred, key_perm_t perm) { return security_ops->key_permission(key_ref, cred, perm); } int security_key_getsecurity(struct key *key, char **_buffer) { return security_ops->key_getsecurity(key, _buffer); } #endif /* CONFIG_KEYS */ #ifdef CONFIG_AUDIT int security_audit_rule_init(u32 field, u32 op, char *rulestr, void **lsmrule) { return security_ops->audit_rule_init(field, op, rulestr, lsmrule); } int security_audit_rule_known(struct audit_krule *krule) { return security_ops->audit_rule_known(krule); } void security_audit_rule_free(void *lsmrule) { security_ops->audit_rule_free(lsmrule); } int security_audit_rule_match(u32 secid, u32 field, u32 op, void *lsmrule, struct audit_context *actx) { return security_ops->audit_rule_match(secid, field, op, lsmrule, actx); } #endif /* CONFIG_AUDIT */