1 /* 2 * Copyright 2023 The OpenSSL Project Authors. All Rights Reserved. 3 * 4 * Licensed under the Apache License 2.0 (the "License"). You may not use 5 * this file except in compliance with the License. You can obtain a copy 6 * in the file LICENSE in the source distribution or at 7 * https://www.openssl.org/source/license.html 8 */ 9 10 #include "internal/quic_types.h" 11 #include <openssl/rand.h> 12 #include <openssl/err.h> 13 ossl_quic_gen_rand_conn_id(OSSL_LIB_CTX * libctx,size_t len,QUIC_CONN_ID * cid)14int ossl_quic_gen_rand_conn_id(OSSL_LIB_CTX *libctx, size_t len, 15 QUIC_CONN_ID *cid) 16 { 17 if (len > QUIC_MAX_CONN_ID_LEN) 18 return 0; 19 20 cid->id_len = (unsigned char)len; 21 22 if (RAND_bytes_ex(libctx, cid->id, len, len * 8) != 1) { 23 ERR_raise(ERR_LIB_SSL, ERR_R_RAND_LIB); 24 cid->id_len = 0; 25 return 0; 26 } 27 28 return 1; 29 } 30
