| 1 | /* |
| 2 | * QEMU Crypto random number provider |
| 3 | * |
| 4 | * Copyright (c) 2015-2016 Red Hat, Inc. |
| 5 | * |
| 6 | * This library is free software; you can redistribute it and/or |
| 7 | * modify it under the terms of the GNU Lesser General Public |
| 8 | * License as published by the Free Software Foundation; either |
| 9 | * version 2.1 of the License, or (at your option) any later version. |
| 10 | * |
| 11 | * This library is distributed in the hope that it will be useful, |
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 14 | * Lesser General Public License for more details. |
| 15 | * |
| 16 | * You should have received a copy of the GNU Lesser General Public |
| 17 | * License along with this library; if not, see <http://www.gnu.org/licenses/>. |
| 18 | * |
| 19 | */ |
| 20 | |
| 21 | #ifndef QCRYPTO_RANDOM_H |
| 22 | #define QCRYPTO_RANDOM_H |
| 23 | |
| 24 | |
| 25 | /** |
| 26 | * qcrypto_random_bytes: |
| 27 | * @buf: the buffer to fill |
| 28 | * @buflen: length of @buf in bytes |
| 29 | * @errp: pointer to a NULL-initialized error object |
| 30 | * |
| 31 | * Fill @buf with @buflen bytes of cryptographically strong |
| 32 | * random data |
| 33 | * |
| 34 | * Returns 0 on success, -1 on error |
| 35 | */ |
| 36 | int qcrypto_random_bytes(void *buf, |
| 37 | size_t buflen, |
| 38 | Error **errp); |
| 39 | |
| 40 | /** |
| 41 | * qcrypto_random_init: |
| 42 | * @errp: pointer to a NULL-initialized error object |
| 43 | * |
| 44 | * Initializes the handles used by qcrypto_random_bytes |
| 45 | * |
| 46 | * Returns 0 on success, -1 on error |
| 47 | */ |
| 48 | int qcrypto_random_init(Error **errp); |
| 49 | |
| 50 | #endif /* QCRYPTO_RANDOM_H */ |