diff options
Diffstat (limited to 'security/security.c')
| -rw-r--r-- | security/security.c | 1501 |
1 files changed, 1501 insertions, 0 deletions
diff --git a/security/security.c b/security/security.c new file mode 100644 index 000000000..c1c7cd19a --- /dev/null +++ b/security/security.c @@ -0,0 +1,1501 @@ +/* + * 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/dcache.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_binder_set_context_mgr(struct task_struct *mgr) +{ + return security_ops->binder_set_context_mgr(mgr); +} + +int security_binder_transaction(struct task_struct *from, + struct task_struct *to) +{ + return security_ops->binder_transaction(from, to); +} + +int security_binder_transfer_binder(struct task_struct *from, + struct task_struct *to) +{ + return security_ops->binder_transfer_binder(from, to); +} + +int security_binder_transfer_file(struct task_struct *from, + struct task_struct *to, struct file *file) +{ + return security_ops->binder_transfer_file(from, to, file); +} + +int security_ptrace_access_check(struct task_struct *child, unsigned int mode) +{ +#ifdef CONFIG_SECURITY_YAMA_STACKED + int rc; + rc = yama_ptrace_access_check(child, mode); + if (rc) + return rc; +#endif + return security_ops->ptrace_access_check(child, mode); +} + +int security_ptrace_traceme(struct task_struct *parent) +{ +#ifdef CONFIG_SECURITY_YAMA_STACKED + int rc; + rc = yama_ptrace_traceme(parent); + if (rc) + return rc; +#endif + 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(const char *dev_name, struct path *path, + const 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, + unsigned long kern_flags, + unsigned long *set_kern_flags) +{ + return security_ops->sb_set_mnt_opts(sb, opts, kern_flags, + set_kern_flags); +} +EXPORT_SYMBOL(security_sb_set_mnt_opts); + +int security_sb_clone_mnt_opts(const struct super_block *oldsb, + struct super_block *newsb) +{ + return 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_dentry_init_security(struct dentry *dentry, int mode, + struct qstr *name, void **ctx, + u32 *ctxlen) +{ + return security_ops->dentry_init_security(dentry, mode, name, + ctx, ctxlen); +} +EXPORT_SYMBOL(security_dentry_init_security); + +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; + + if (!initxattrs) + return security_ops->inode_init_security(inode, dir, qstr, + NULL, NULL, NULL); + memset(new_xattrs, 0, sizeof(new_xattrs)); + 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->value != NULL; xattr++) + 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, const 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(d_backing_inode(dir->dentry)))) + 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(d_backing_inode(dir->dentry)))) + 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(d_backing_inode(dir->dentry)))) + return 0; + return security_ops->path_rmdir(dir, dentry); +} +EXPORT_SYMBOL(security_path_rmdir); + +int security_path_unlink(struct path *dir, struct dentry *dentry) +{ + if (unlikely(IS_PRIVATE(d_backing_inode(dir->dentry)))) + 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(d_backing_inode(dir->dentry)))) + return 0; + return security_ops->path_symlink(dir, dentry, old_name); +} +EXPORT_SYMBOL(security_path_symlink); + +int security_path_link(struct dentry *old_dentry, struct path *new_dir, + struct dentry *new_dentry) +{ + if (unlikely(IS_PRIVATE(d_backing_inode(old_dentry)))) + return 0; + return security_ops->path_link(old_dentry, new_dir, new_dentry); +} +EXPORT_SYMBOL(security_path_link); + +int security_path_rename(struct path *old_dir, struct dentry *old_dentry, + struct path *new_dir, struct dentry *new_dentry, + unsigned int flags) +{ + if (unlikely(IS_PRIVATE(d_backing_inode(old_dentry)) || + (d_is_positive(new_dentry) && IS_PRIVATE(d_backing_inode(new_dentry))))) + return 0; + + if (flags & RENAME_EXCHANGE) { + int err = security_ops->path_rename(new_dir, new_dentry, + old_dir, old_dentry); + if (err) + return err; + } + + 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(d_backing_inode(path->dentry)))) + return 0; + return security_ops->path_truncate(path); +} +EXPORT_SYMBOL(security_path_truncate); + +int security_path_chmod(struct path *path, umode_t mode) +{ + if (unlikely(IS_PRIVATE(d_backing_inode(path->dentry)))) + return 0; + return security_ops->path_chmod(path, mode); +} +EXPORT_SYMBOL(security_path_chmod); + +int security_path_chown(struct path *path, kuid_t uid, kgid_t gid) +{ + if (unlikely(IS_PRIVATE(d_backing_inode(path->dentry)))) + return 0; + return security_ops->path_chown(path, uid, gid); +} +EXPORT_SYMBOL(security_path_chown); + +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(d_backing_inode(old_dentry)))) + 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(d_backing_inode(dentry)))) + 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(d_backing_inode(dentry)))) + 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, + unsigned int flags) +{ + if (unlikely(IS_PRIVATE(d_backing_inode(old_dentry)) || + (d_is_positive(new_dentry) && IS_PRIVATE(d_backing_inode(new_dentry))))) + return 0; + + if (flags & RENAME_EXCHANGE) { + int err = security_ops->inode_rename(new_dir, new_dentry, + old_dir, old_dentry); + if (err) + return err; + } + + return security_ops->inode_rename(old_dir, old_dentry, + new_dir, new_dentry); +} + +int security_inode_readlink(struct dentry *dentry) +{ + if (unlikely(IS_PRIVATE(d_backing_inode(dentry)))) + return 0; + return security_ops->inode_readlink(dentry); +} +EXPORT_SYMBOL(security_inode_readlink); + +int security_inode_follow_link(struct dentry *dentry, struct nameidata *nd) +{ + if (unlikely(IS_PRIVATE(d_backing_inode(dentry)))) + 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); +} +EXPORT_SYMBOL(security_inode_permission); + +int security_inode_setattr(struct dentry *dentry, struct iattr *attr) +{ + int ret; + + if (unlikely(IS_PRIVATE(d_backing_inode(dentry)))) + 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(const struct path *path) +{ + if (unlikely(IS_PRIVATE(d_backing_inode(path->dentry)))) + return 0; + return security_ops->inode_getattr(path); +} + +int security_inode_setxattr(struct dentry *dentry, const char *name, + const void *value, size_t size, int flags) +{ + int ret; + + if (unlikely(IS_PRIVATE(d_backing_inode(dentry)))) + return 0; + ret = security_ops->inode_setxattr(dentry, name, value, size, flags); + if (ret) + return ret; + ret = ima_inode_setxattr(dentry, name, value, size); + 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(d_backing_inode(dentry)))) + 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(d_backing_inode(dentry)))) + return 0; + return security_ops->inode_getxattr(dentry, name); +} + +int security_inode_listxattr(struct dentry *dentry) +{ + if (unlikely(IS_PRIVATE(d_backing_inode(dentry)))) + return 0; + return security_ops->inode_listxattr(dentry); +} + +int security_inode_removexattr(struct dentry *dentry, const char *name) +{ + int ret; + + if (unlikely(IS_PRIVATE(d_backing_inode(dentry)))) + return 0; + ret = security_ops->inode_removexattr(dentry, name); + if (ret) + return ret; + ret = ima_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); +} +EXPORT_SYMBOL(security_inode_listsecurity); + +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); +} +EXPORT_SYMBOL(security_file_permission); + +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 + * NOMMU_MAP_EXEC (== VM_MAYEXEC) in this case + */ + if (!(file->f_path.mnt->mnt_flags & MNT_NOEXEC)) { +#ifndef CONFIG_MMU + if (file->f_op->mmap_capabilities) { + unsigned caps = file->f_op->mmap_capabilities(file); + if (!(caps & NOMMU_MAP_EXEC)) + 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); +} +EXPORT_SYMBOL(security_mmap_file); + +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); +} + +void security_file_set_fowner(struct file *file) +{ + 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) +{ +#ifdef CONFIG_SECURITY_YAMA_STACKED + yama_task_free(task); +#endif + 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_fw_from_file(struct file *file, char *buf, size_t size) +{ + int ret; + + ret = security_ops->kernel_fw_from_file(file, buf, size); + if (ret) + return ret; + return ima_fw_from_file(file, buf, size); +} +EXPORT_SYMBOL_GPL(security_kernel_fw_from_file); + +int security_kernel_module_request(char *kmod_name) +{ + return security_ops->kernel_module_request(kmod_name); +} + +int security_kernel_module_from_file(struct file *file) +{ + int ret; + + ret = security_ops->kernel_module_from_file(file); + if (ret) + return ret; + return ima_module_check(file); +} + +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) +{ +#ifdef CONFIG_SECURITY_YAMA_STACKED + int rc; + rc = yama_task_prctl(option, arg2, arg3, arg4, arg5); + if (rc != -ENOSYS) + return rc; +#endif + 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_ismaclabel(const char *name) +{ + return security_ops->ismaclabel(name); +} +EXPORT_SYMBOL(security_ismaclabel); + +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_alloc_security(void **security) +{ + return security_ops->tun_dev_alloc_security(security); +} +EXPORT_SYMBOL(security_tun_dev_alloc_security); + +void security_tun_dev_free_security(void *security) +{ + security_ops->tun_dev_free_security(security); +} +EXPORT_SYMBOL(security_tun_dev_free_security); + +int security_tun_dev_create(void) +{ + return security_ops->tun_dev_create(); +} +EXPORT_SYMBOL(security_tun_dev_create); + +int security_tun_dev_attach_queue(void *security) +{ + return security_ops->tun_dev_attach_queue(security); +} +EXPORT_SYMBOL(security_tun_dev_attach_queue); + +int security_tun_dev_attach(struct sock *sk, void *security) +{ + return security_ops->tun_dev_attach(sk, security); +} +EXPORT_SYMBOL(security_tun_dev_attach); + +int security_tun_dev_open(void *security) +{ + return security_ops->tun_dev_open(security); +} +EXPORT_SYMBOL(security_tun_dev_open); + +#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, + gfp_t gfp) +{ + return security_ops->xfrm_policy_alloc_security(ctxp, sec_ctx, gfp); +} +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(x, sec_ctx); +} +EXPORT_SYMBOL(security_xfrm_state_alloc); + +int security_xfrm_state_alloc_acquire(struct xfrm_state *x, + struct xfrm_sec_ctx *polsec, u32 secid) +{ + return security_ops->xfrm_state_alloc_acquire(x, polsec, 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, unsigned 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 */ |