1 /* Copyright (c) 2020, Google Inc. 2 * 3 * Permission to use, copy, modify, and/or distribute this software for any 4 * purpose with or without fee is hereby granted, provided that the above 5 * copyright notice and this permission notice appear in all copies. 6 * 7 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 8 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 9 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY 10 * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 11 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION 12 * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN 13 * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */ 14 15 #ifndef OPENSSL_HEADER_CRYPTO_RAND_GETRANDOM_FILLIN_H 16 #define OPENSSL_HEADER_CRYPTO_RAND_GETRANDOM_FILLIN_H 17 18 #include <openssl/base.h> 19 20 21 #if defined(OPENSSL_LINUX) 22 23 #include <sys/syscall.h> 24 25 #if defined(OPENSSL_X86_64) 26 #define EXPECTED_NR_getrandom 318 27 #elif defined(OPENSSL_X86) 28 #define EXPECTED_NR_getrandom 355 29 #elif defined(OPENSSL_AARCH64) 30 #define EXPECTED_NR_getrandom 278 31 #elif defined(OPENSSL_ARM) 32 #define EXPECTED_NR_getrandom 384 33 #elif defined(OPENSSL_RISCV64) 34 #define EXPECTED_NR_getrandom 278 35 #endif 36 37 #if defined(EXPECTED_NR_getrandom) 38 #define USE_NR_getrandom 39 40 #if defined(__NR_getrandom) 41 42 #if __NR_getrandom != EXPECTED_NR_getrandom 43 #error "system call number for getrandom is not the expected value" 44 #endif 45 46 #else // __NR_getrandom 47 48 #define __NR_getrandom EXPECTED_NR_getrandom 49 50 #endif // __NR_getrandom 51 52 #endif // EXPECTED_NR_getrandom 53 54 #if !defined(GRND_NONBLOCK) 55 #define GRND_NONBLOCK 1 56 #endif 57 #if !defined(GRND_RANDOM) 58 #define GRND_RANDOM 2 59 #endif 60 61 #endif // OPENSSL_LINUX 62 63 64 #endif // OPENSSL_HEADER_CRYPTO_RAND_GETRANDOM_FILLIN_H 65