linux/security/security.c
Mimi Zohar fdf90729e5 ima: support new kernel module syscall
With the addition of the new kernel module syscall, which defines two
arguments - a file descriptor to the kernel module and a pointer to a NULL
terminated string of module arguments - it is now possible to measure and
appraise kernel modules like any other file on the file system.

This patch adds support to measure and appraise kernel modules in an
extensible and consistent manner.

To support filesystems without extended attribute support, additional
patches could pass the signature as the first parameter.

Signed-off-by: Mimi Zohar <zohar@us.ibm.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2012-12-14 13:05:26 +10:30

1408 lines
35 KiB
C

/*
* 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)
{
#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)
{
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, kuid_t uid, kgid_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;
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(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;
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);
}
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)
{
#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_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_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 */