| /* SPDX-License-Identifier: GPL-2.0-only */ |
| /* |
| * Copyright 2021 Google LLC |
| * |
| * This file is automatically included by all files built into fips140.ko, via |
| * the "-include" compiler flag. |
| */ |
| |
| /* |
| * fips140.ko is built from various unmodified or minimally modified kernel |
| * source files, many of which are normally meant to be buildable into different |
| * modules themselves. That results in conflicting instances of module_init() |
| * and related macros such as MODULE_LICENSE(). |
| * |
| * To solve that, we undefine MODULE to trick the kernel headers into thinking |
| * the code is being compiled as built-in. That causes module_init() and |
| * related macros to be expanded as they would be for built-in code; e.g., |
| * module_init() adds the function to the .initcalls section of the binary. |
| * |
| * The .c files that contain the real module_init, module license, and module |
| * parameters for fips140.ko are then responsible for redefining MODULE. The |
| * real module_init executes all initcalls that were collected into .initcalls. |
| */ |
| #undef MODULE |
| |
| /* |
| * Defining KBUILD_MODFILE is also required, since the kernel headers expect it |
| * to be defined when code that can be a module is compiled as built-in. |
| */ |
| #define KBUILD_MODFILE "crypto/fips140" |
| |
| /* |
| * Disable symbol exports by default. fips140.ko includes various files that |
| * use EXPORT_SYMBOL*(), but it's unwanted to export any symbols from fips140.ko |
| * except where explicitly needed for FIPS certification reasons. |
| */ |
| #define __DISABLE_EXPORTS |
| |
| /* |
| * Redirect all calls to algorithm registration functions to the wrapper |
| * functions defined within the module. |
| */ |
| #define aead_register_instance fips140_aead_register_instance |
| #define ahash_register_instance fips140_ahash_register_instance |
| #define crypto_register_aead fips140_crypto_register_aead |
| #define crypto_register_aeads fips140_crypto_register_aeads |
| #define crypto_register_ahash fips140_crypto_register_ahash |
| #define crypto_register_ahashes fips140_crypto_register_ahashes |
| #define crypto_register_alg fips140_crypto_register_alg |
| #define crypto_register_algs fips140_crypto_register_algs |
| #define crypto_register_rng fips140_crypto_register_rng |
| #define crypto_register_rngs fips140_crypto_register_rngs |
| #define crypto_register_shash fips140_crypto_register_shash |
| #define crypto_register_shashes fips140_crypto_register_shashes |
| #define crypto_register_skcipher fips140_crypto_register_skcipher |
| #define crypto_register_skciphers fips140_crypto_register_skciphers |
| #define shash_register_instance fips140_shash_register_instance |
| #define skcipher_register_instance fips140_skcipher_register_instance |
