blob: da4053b4bdbda97030dd1409a998eb6ea99aa354 [file] [log] [blame]
/*
* Copyright (c) 2017 Intel Corporation
*
* SPDX-License-Identifier: Apache-2.0
*/
#include <zephyr/kernel.h>
#include <zephyr/internal/syscall_handler.h>
#include <zephyr/kernel_structs.h>
#include <zephyr/toolchain.h>
static struct k_object *validate_kernel_object(const void *obj,
enum k_objects otype,
enum _obj_init_check init)
{
struct k_object *ko;
int ret;
ko = k_object_find(obj);
/* This can be any kernel object and it doesn't have to be
* initialized
*/
ret = k_object_validate(ko, K_OBJ_ANY, _OBJ_INIT_ANY);
if (ret != 0) {
#ifdef CONFIG_LOG
k_object_dump_error(ret, obj, ko, otype);
#endif /* CONFIG_LOG */
return NULL;
}
return ko;
}
static ALWAYS_INLINE struct k_object *validate_any_object(const void *obj)
{
return validate_kernel_object(obj, K_OBJ_ANY, _OBJ_INIT_ANY);
}
bool k_object_is_valid(const void *obj, enum k_objects otype)
{
struct k_object *ko;
ko = validate_kernel_object(obj, otype, _OBJ_INIT_TRUE);
return (ko != NULL);
}
/* Normally these would be included in userspace.c, but the way
* syscall_dispatch.c declares weak handlers results in build errors if these
* are located in userspace.c. Just put in a separate file.
*
* To avoid double k_object_find() lookups, we don't call the implementation
* function, but call a level deeper.
*/
static inline void z_vrfy_k_object_access_grant(const void *object,
struct k_thread *thread)
{
struct k_object *ko;
K_OOPS(K_SYSCALL_OBJ_INIT(thread, K_OBJ_THREAD));
ko = validate_any_object(object);
K_OOPS(K_SYSCALL_VERIFY_MSG(ko != NULL, "object %p access denied",
object));
k_thread_perms_set(ko, thread);
}
#include <syscalls/k_object_access_grant_mrsh.c>
static inline void z_vrfy_k_object_release(const void *object)
{
struct k_object *ko;
ko = validate_any_object(object);
K_OOPS(K_SYSCALL_VERIFY_MSG(ko != NULL, "object %p access denied", object));
k_thread_perms_clear(ko, _current);
}
#include <syscalls/k_object_release_mrsh.c>
static inline void *z_vrfy_k_object_alloc(enum k_objects otype)
{
return z_impl_k_object_alloc(otype);
}
#include <syscalls/k_object_alloc_mrsh.c>
static inline void *z_vrfy_k_object_alloc_size(enum k_objects otype, size_t size)
{
return z_impl_k_object_alloc_size(otype, size);
}
#include <syscalls/k_object_alloc_size_mrsh.c>