Christian Heimes | 121b948 | 2016-09-06 22:03:25 +0200 | [diff] [blame] | 1 | /* |
| 2 | * Written in 2013 by Dmitry Chestnykh <dmitry@codingrobots.com> |
| 3 | * Modified for CPython by Christian Heimes <christian@python.org> |
| 4 | * |
| 5 | * To the extent possible under law, the author have dedicated all |
| 6 | * copyright and related and neighboring rights to this software to |
| 7 | * the public domain worldwide. This software is distributed without |
| 8 | * any warranty. http://creativecommons.org/publicdomain/zero/1.0/ |
| 9 | */ |
| 10 | |
| 11 | #include "Python.h" |
| 12 | |
| 13 | #include "impl/blake2.h" |
| 14 | |
| 15 | extern PyTypeObject PyBlake2_BLAKE2bType; |
| 16 | extern PyTypeObject PyBlake2_BLAKE2sType; |
| 17 | |
| 18 | |
| 19 | PyDoc_STRVAR(blake2mod__doc__, |
| 20 | "_blake2b provides BLAKE2b for hashlib\n" |
| 21 | ); |
| 22 | |
| 23 | |
| 24 | static struct PyMethodDef blake2mod_functions[] = { |
| 25 | {NULL, NULL} |
| 26 | }; |
| 27 | |
| 28 | static struct PyModuleDef blake2_module = { |
| 29 | PyModuleDef_HEAD_INIT, |
| 30 | "_blake2", |
| 31 | blake2mod__doc__, |
| 32 | -1, |
| 33 | blake2mod_functions, |
| 34 | NULL, |
| 35 | NULL, |
| 36 | NULL, |
| 37 | NULL |
| 38 | }; |
| 39 | |
| 40 | #define ADD_INT(d, name, value) do { \ |
| 41 | PyObject *x = PyLong_FromLong(value); \ |
| 42 | if (!x) { \ |
| 43 | Py_DECREF(m); \ |
| 44 | return NULL; \ |
| 45 | } \ |
| 46 | if (PyDict_SetItemString(d, name, x) < 0) { \ |
| 47 | Py_DECREF(m); \ |
| 48 | return NULL; \ |
| 49 | } \ |
| 50 | Py_DECREF(x); \ |
| 51 | } while(0) |
| 52 | |
| 53 | |
| 54 | PyMODINIT_FUNC |
| 55 | PyInit__blake2(void) |
| 56 | { |
| 57 | PyObject *m; |
| 58 | PyObject *d; |
| 59 | |
| 60 | m = PyModule_Create(&blake2_module); |
| 61 | if (m == NULL) |
| 62 | return NULL; |
| 63 | |
| 64 | /* BLAKE2b */ |
| 65 | Py_TYPE(&PyBlake2_BLAKE2bType) = &PyType_Type; |
| 66 | if (PyType_Ready(&PyBlake2_BLAKE2bType) < 0) { |
| 67 | return NULL; |
| 68 | } |
| 69 | |
| 70 | Py_INCREF(&PyBlake2_BLAKE2bType); |
| 71 | PyModule_AddObject(m, "blake2b", (PyObject *)&PyBlake2_BLAKE2bType); |
| 72 | |
| 73 | d = PyBlake2_BLAKE2bType.tp_dict; |
| 74 | ADD_INT(d, "SALT_SIZE", BLAKE2B_SALTBYTES); |
| 75 | ADD_INT(d, "PERSON_SIZE", BLAKE2B_PERSONALBYTES); |
| 76 | ADD_INT(d, "MAX_KEY_SIZE", BLAKE2B_KEYBYTES); |
| 77 | ADD_INT(d, "MAX_DIGEST_SIZE", BLAKE2B_OUTBYTES); |
| 78 | |
| 79 | PyModule_AddIntConstant(m, "BLAKE2B_SALT_SIZE", BLAKE2B_SALTBYTES); |
| 80 | PyModule_AddIntConstant(m, "BLAKE2B_PERSON_SIZE", BLAKE2B_PERSONALBYTES); |
| 81 | PyModule_AddIntConstant(m, "BLAKE2B_MAX_KEY_SIZE", BLAKE2B_KEYBYTES); |
| 82 | PyModule_AddIntConstant(m, "BLAKE2B_MAX_DIGEST_SIZE", BLAKE2B_OUTBYTES); |
| 83 | |
| 84 | /* BLAKE2s */ |
| 85 | Py_TYPE(&PyBlake2_BLAKE2sType) = &PyType_Type; |
| 86 | if (PyType_Ready(&PyBlake2_BLAKE2sType) < 0) { |
| 87 | return NULL; |
| 88 | } |
| 89 | |
| 90 | Py_INCREF(&PyBlake2_BLAKE2sType); |
| 91 | PyModule_AddObject(m, "blake2s", (PyObject *)&PyBlake2_BLAKE2sType); |
| 92 | |
| 93 | d = PyBlake2_BLAKE2sType.tp_dict; |
| 94 | ADD_INT(d, "SALT_SIZE", BLAKE2S_SALTBYTES); |
| 95 | ADD_INT(d, "PERSON_SIZE", BLAKE2S_PERSONALBYTES); |
| 96 | ADD_INT(d, "MAX_KEY_SIZE", BLAKE2S_KEYBYTES); |
| 97 | ADD_INT(d, "MAX_DIGEST_SIZE", BLAKE2S_OUTBYTES); |
| 98 | |
| 99 | PyModule_AddIntConstant(m, "BLAKE2S_SALT_SIZE", BLAKE2S_SALTBYTES); |
| 100 | PyModule_AddIntConstant(m, "BLAKE2S_PERSON_SIZE", BLAKE2S_PERSONALBYTES); |
| 101 | PyModule_AddIntConstant(m, "BLAKE2S_MAX_KEY_SIZE", BLAKE2S_KEYBYTES); |
| 102 | PyModule_AddIntConstant(m, "BLAKE2S_MAX_DIGEST_SIZE", BLAKE2S_OUTBYTES); |
| 103 | |
| 104 | return m; |
| 105 | } |