| // Copyright 2016 The Fuchsia Authors |
| // |
| // Use of this source code is governed by a MIT-style |
| // license that can be found in the LICENSE file or at |
| // https://opensource.org/licenses/MIT |
| |
| #pragma once |
| |
| #include <err.h> |
| #include <zircon/compiler.h> |
| #include <zircon/types.h> |
| |
| __BEGIN_CDECLS |
| |
| /* |
| * @brief Copy data from userspace into kernelspace |
| * |
| * This function validates that usermode has access to src before copying the |
| * data. |
| * |
| * @param dst The destination buffer. |
| * @param src The source buffer. |
| * @param len The number of bytes to copy. |
| * |
| * @return ZX_OK on success |
| */ |
| zx_status_t arch_copy_from_user(void *dst, const void *src, size_t len); |
| |
| /* |
| * @brief Copy data from kernelspace into userspace |
| * |
| * This function validates that usermode has access to dst before copying the |
| * data. |
| * |
| * @param dst The destination buffer. |
| * @param src The source buffer. |
| * @param len The number of bytes to copy. |
| * |
| * @return ZX_OK on success |
| */ |
| zx_status_t arch_copy_to_user(void *dst, const void *src, size_t len); |
| |
| __END_CDECLS |