d7ab1bab |
1 | /* -*-c-*- |
2 | * |
3 | * $Id$ |
4 | * |
5 | * Symmetric cryptography |
6 | * |
7 | * (c) 2004 Straylight/Edgeware |
8 | */ |
9 | |
10 | /*----- Licensing notice --------------------------------------------------* |
11 | * |
12 | * This file is part of the Python interface to Catacomb. |
13 | * |
14 | * Catacomb/Python is free software; you can redistribute it and/or modify |
15 | * it under the terms of the GNU General Public License as published by |
16 | * the Free Software Foundation; either version 2 of the License, or |
17 | * (at your option) any later version. |
18 | * |
19 | * Catacomb/Python is distributed in the hope that it will be useful, |
20 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
21 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
22 | * GNU General Public License for more details. |
23 | * |
24 | * You should have received a copy of the GNU General Public License |
25 | * along with Catacomb/Python; if not, write to the Free Software Foundation, |
26 | * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. |
27 | */ |
28 | |
29 | /*----- Header files ------------------------------------------------------*/ |
30 | |
31 | #include "catacomb-python.h" |
32 | #include "algorithms.h" |
33 | |
34 | /*----- Key sizes ---------------------------------------------------------*/ |
35 | |
36 | PyTypeObject *keysz_pytype; |
37 | PyTypeObject *keyszany_pytype, *keyszrange_pytype, *keyszset_pytype; |
38 | PyObject *sha_pyobj, *has160_pyobj; |
39 | |
40 | PyObject *keysz_pywrap(const octet *k) |
41 | { |
42 | switch (k[0]) { |
43 | case KSZ_ANY: { |
44 | keysz_pyobj *o = PyObject_New(keysz_pyobj, keyszany_pytype); |
45 | o->dfl = k[1]; |
46 | return ((PyObject *)o); |
47 | } break; |
48 | case KSZ_RANGE: { |
49 | keyszrange_pyobj *o = |
50 | PyObject_New(keyszrange_pyobj, keyszrange_pytype); |
51 | o->dfl = k[1]; |
52 | o->min = k[2]; |
53 | o->max = k[3]; |
54 | o->mod = k[4]; |
55 | if (!o->mod) o->mod = 1; |
56 | return ((PyObject *)o); |
57 | } break; |
58 | case KSZ_SET: { |
59 | keyszset_pyobj *o = |
60 | PyObject_New(keyszset_pyobj, keyszset_pytype); |
61 | int i, n; |
62 | o->dfl = k[1]; |
63 | for (i = 0; k[i + 1]; i++) ; |
64 | n = i; o->set = PyTuple_New(n); |
65 | for (i = 0; i < n; i++) |
66 | PyTuple_SET_ITEM(o->set, i, PyInt_FromLong(k[i + 1])); |
67 | return ((PyObject *)o); |
68 | } break; |
69 | default: |
70 | abort(); |
71 | } |
72 | } |
73 | |
74 | static PyObject *keyszany_pynew(PyTypeObject *ty, |
75 | PyObject *arg, PyObject *kw) |
76 | { |
77 | char *kwlist[] = { "default", 0 }; |
78 | int dfl; |
79 | keysz_pyobj *o; |
80 | |
81 | if (!PyArg_ParseTupleAndKeywords(arg, kw, "i:new", kwlist, &dfl)) |
82 | goto end; |
83 | if (dfl < 0) VALERR("key size cannot be negative"); |
84 | o = (keysz_pyobj *)ty->tp_alloc(ty, 0); |
85 | o->dfl = dfl; |
86 | return ((PyObject *)o); |
87 | end: |
88 | return (0); |
89 | } |
90 | |
91 | static PyObject *keyszrange_pynew(PyTypeObject *ty, |
92 | PyObject *arg, PyObject *kw) |
93 | { |
94 | char *kwlist[] = { "default", "min", "max", "mod", 0 }; |
95 | int dfl, min = 0, max = 0, mod = 1; |
96 | keyszrange_pyobj *o; |
97 | |
98 | if (!PyArg_ParseTupleAndKeywords(arg, kw, "i|iii:new", kwlist, |
99 | &dfl, &min, &max, &mod)) |
100 | goto end; |
101 | if (dfl < 0 || min < 0 || max < 0) |
102 | VALERR("key size cannot be negative"); |
103 | if (min > dfl || (max && dfl > max)) |
104 | VALERR("bad key size bounds"); |
105 | if (mod <= 0 || dfl % mod || min % mod || max % mod) |
106 | VALERR("bad key size modulus"); |
107 | o = (keyszrange_pyobj *)ty->tp_alloc(ty, 0); |
108 | o->dfl = dfl; |
109 | o->min = min; |
110 | o->max = max; |
111 | o->mod = mod; |
112 | return ((PyObject *)o); |
113 | end: |
114 | return (0); |
115 | } |
116 | |
117 | static PyObject *keyszset_pynew(PyTypeObject *ty, |
118 | PyObject *arg, PyObject *kw) |
119 | { |
120 | char *kwlist[] = { "default", "set", 0 }; |
121 | int dfl, i, n, xx; |
122 | PyObject *set = 0; |
123 | PyObject *x = 0, *l = 0; |
124 | keyszset_pyobj *o = 0; |
125 | |
126 | if (!PyArg_ParseTupleAndKeywords(arg, kw, "i|O:new", kwlist, |
127 | &dfl, &set)) |
128 | goto end; |
129 | if (!set) set = PyTuple_New(0); |
130 | else Py_INCREF(set); |
131 | if (!PySequence_Check(set)) TYERR("want a sequence"); |
132 | n = PySequence_Size(set); |
133 | l = PyList_New(0); |
134 | if (PyErr_Occurred()) goto end; |
135 | if (dfl < 0) VALERR("key size cannot be negative"); |
136 | x = PyInt_FromLong(dfl); |
137 | PyList_Append(l, x); |
138 | Py_DECREF(x); |
139 | x = 0; |
140 | for (i = 0; i < n; i++) { |
141 | if ((x = PySequence_GetItem(set, i)) == 0) goto end; |
142 | xx = PyInt_AsLong(x); |
143 | if (PyErr_Occurred()) goto end; |
144 | if (xx == dfl) continue; |
145 | if (xx < 0) VALERR("key size cannot be negative"); |
146 | PyList_Append(l, x); |
147 | Py_DECREF(x); |
148 | x = 0; |
149 | } |
150 | Py_DECREF(set); |
151 | if ((set = PySequence_Tuple(l)) == 0) goto end; |
152 | o = (keyszset_pyobj *)ty->tp_alloc(ty, 0); |
153 | o->dfl = dfl; |
154 | o->set = set; |
155 | Py_INCREF(set); |
156 | end: |
157 | Py_XDECREF(set); |
158 | Py_XDECREF(l); |
159 | Py_XDECREF(x); |
160 | return ((PyObject *)o); |
161 | } |
162 | |
163 | static PyObject *kaget_min(PyObject *me, void *hunoz) |
164 | { return (PyInt_FromLong(0)); } |
165 | #define kaget_max kaget_min |
166 | |
167 | static PyObject *ksget_min(PyObject *me, void *hunoz) |
168 | { |
169 | PyObject *set = ((keyszset_pyobj *)me)->set; |
170 | int i, n, y, x = -1; |
171 | n = PyTuple_Size(set); |
172 | for (i = 0; i < n; i++) { |
173 | y = PyInt_AsLong(PyTuple_GetItem(set, i)); |
174 | if (x == -1 || y < x) x = y; |
175 | } |
176 | return (PyInt_FromLong(x)); |
177 | } |
178 | |
179 | static PyObject *ksget_max(PyObject *me, void *hunoz) |
180 | { |
181 | PyObject *set = ((keyszset_pyobj *)me)->set; |
182 | int i, n, y, x = -1; |
183 | n = PyTuple_Size(set); |
184 | for (i = 0; i < n; i++) { |
185 | y = PyInt_AsLong(PyTuple_GetItem(set, i)); |
186 | if (y > x) x = y; |
187 | } |
188 | return (PyInt_FromLong(x)); |
189 | } |
190 | |
191 | static PyMemberDef keysz_pymembers[] = { |
192 | #define MEMBERSTRUCT keysz_pyobj |
193 | #define default dfl /* ugh! */ |
194 | MEMBER(default, T_INT, READONLY, "KSZ.default -> default key size") |
195 | #undef default |
196 | #undef MEMBERSTRUCT |
197 | { 0 } |
198 | }; |
199 | |
200 | static PyGetSetDef keyszany_pygetset[] = { |
201 | #define GETSETNAME(op, name) ka##op##_##name |
202 | GET (min, "KSZ.min -> smallest allowed key size") |
203 | GET (max, "KSZ.min -> largest allowed key size") |
204 | #undef GETSETNAME |
205 | { 0 } |
206 | }; |
207 | |
208 | static PyMemberDef keyszrange_pymembers[] = { |
209 | #define MEMBERSTRUCT keyszrange_pyobj |
210 | MEMBER(min, T_INT, READONLY, "KSZ.min -> smallest allowed key size") |
211 | MEMBER(max, T_INT, READONLY, "KSZ.min -> largest allowed key size") |
212 | MEMBER(mod, T_INT, READONLY, |
213 | "KSZ.mod -> key size must be a multiple of this") |
214 | #undef MEMBERSTRUCT |
215 | { 0 } |
216 | }; |
217 | |
218 | static PyGetSetDef keyszset_pygetset[] = { |
219 | #define GETSETNAME(op, name) ks##op##_##name |
220 | GET (min, "KSZ.min -> smallest allowed key size") |
221 | GET (max, "KSZ.min -> largest allowed key size") |
222 | #undef GETSETNAME |
223 | { 0 } |
224 | }; |
225 | |
226 | static PyMemberDef keyszset_pymembers[] = { |
227 | #define MEMBERSTRUCT keyszset_pyobj |
228 | MEMBER(set, T_OBJECT, READONLY, "KSZ.set -> allowed key sizes") |
229 | #undef MEMBERSTRUCT |
230 | { 0 } |
231 | }; |
232 | |
233 | static PyTypeObject keysz_pytype_skel = { |
234 | PyObject_HEAD_INIT(&PyType_Type) 0, /* Header */ |
235 | "catacomb.KeySZ", /* @tp_name@ */ |
236 | sizeof(keysz_pyobj), /* @tp_basicsize@ */ |
237 | 0, /* @tp_itemsize@ */ |
238 | |
3aa33042 |
239 | 0, /* @tp_dealloc@ */ |
d7ab1bab |
240 | 0, /* @tp_print@ */ |
241 | 0, /* @tp_getattr@ */ |
242 | 0, /* @tp_setattr@ */ |
243 | 0, /* @tp_compare@ */ |
244 | 0, /* @tp_repr@ */ |
245 | 0, /* @tp_as_number@ */ |
246 | 0, /* @tp_as_sequence@ */ |
247 | 0, /* @tp_as_mapping@ */ |
248 | 0, /* @tp_hash@ */ |
249 | 0, /* @tp_call@ */ |
250 | 0, /* @tp_str@ */ |
251 | 0, /* @tp_getattro@ */ |
252 | 0, /* @tp_setattro@ */ |
253 | 0, /* @tp_as_buffer@ */ |
254 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ |
255 | Py_TPFLAGS_BASETYPE, |
256 | |
257 | /* @tp_doc@ */ |
258 | "Key size constraints.", |
259 | |
260 | 0, /* @tp_traverse@ */ |
261 | 0, /* @tp_clear@ */ |
262 | 0, /* @tp_richcompare@ */ |
263 | 0, /* @tp_weaklistoffset@ */ |
264 | 0, /* @tp_iter@ */ |
265 | 0, /* @tp_iternexr@ */ |
266 | 0, /* @tp_methods@ */ |
267 | keysz_pymembers, /* @tp_members@ */ |
268 | 0, /* @tp_getset@ */ |
269 | 0, /* @tp_base@ */ |
270 | 0, /* @tp_dict@ */ |
271 | 0, /* @tp_descr_get@ */ |
272 | 0, /* @tp_descr_set@ */ |
273 | 0, /* @tp_dictoffset@ */ |
274 | 0, /* @tp_init@ */ |
275 | PyType_GenericAlloc, /* @tp_alloc@ */ |
276 | abstract_pynew, /* @tp_new@ */ |
3aa33042 |
277 | 0, /* @tp_free@ */ |
d7ab1bab |
278 | 0 /* @tp_is_gc@ */ |
279 | }; |
280 | |
281 | static PyTypeObject keyszany_pytype_skel = { |
282 | PyObject_HEAD_INIT(&PyType_Type) 0, /* Header */ |
283 | "catacomb.KeySZAny", /* @tp_name@ */ |
284 | sizeof(keysz_pyobj), /* @tp_basicsize@ */ |
285 | 0, /* @tp_itemsize@ */ |
286 | |
3aa33042 |
287 | 0, /* @tp_dealloc@ */ |
d7ab1bab |
288 | 0, /* @tp_print@ */ |
289 | 0, /* @tp_getattr@ */ |
290 | 0, /* @tp_setattr@ */ |
291 | 0, /* @tp_compare@ */ |
292 | 0, /* @tp_repr@ */ |
293 | 0, /* @tp_as_number@ */ |
294 | 0, /* @tp_as_sequence@ */ |
295 | 0, /* @tp_as_mapping@ */ |
296 | 0, /* @tp_hash@ */ |
297 | 0, /* @tp_call@ */ |
298 | 0, /* @tp_str@ */ |
299 | 0, /* @tp_getattro@ */ |
300 | 0, /* @tp_setattro@ */ |
301 | 0, /* @tp_as_buffer@ */ |
302 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ |
303 | Py_TPFLAGS_BASETYPE, |
304 | |
305 | /* @tp_doc@ */ |
306 | "Key size constraints. This object imposes no constraints on size.", |
307 | |
308 | 0, /* @tp_traverse@ */ |
309 | 0, /* @tp_clear@ */ |
310 | 0, /* @tp_richcompare@ */ |
311 | 0, /* @tp_weaklistoffset@ */ |
312 | 0, /* @tp_iter@ */ |
313 | 0, /* @tp_iternexr@ */ |
314 | 0, /* @tp_methods@ */ |
315 | 0, /* @tp_members@ */ |
316 | keyszany_pygetset, /* @tp_getset@ */ |
317 | 0, /* @tp_base@ */ |
318 | 0, /* @tp_dict@ */ |
319 | 0, /* @tp_descr_get@ */ |
320 | 0, /* @tp_descr_set@ */ |
321 | 0, /* @tp_dictoffset@ */ |
322 | 0, /* @tp_init@ */ |
323 | PyType_GenericAlloc, /* @tp_alloc@ */ |
324 | keyszany_pynew, /* @tp_new@ */ |
3aa33042 |
325 | 0, /* @tp_free@ */ |
d7ab1bab |
326 | 0 /* @tp_is_gc@ */ |
327 | }; |
328 | |
329 | static PyTypeObject keyszrange_pytype_skel = { |
330 | PyObject_HEAD_INIT(&PyType_Type) 0, /* Header */ |
331 | "catacomb.KeySZRange", /* @tp_name@ */ |
332 | sizeof(keyszrange_pyobj), /* @tp_basicsize@ */ |
333 | 0, /* @tp_itemsize@ */ |
334 | |
3aa33042 |
335 | 0, /* @tp_dealloc@ */ |
d7ab1bab |
336 | 0, /* @tp_print@ */ |
337 | 0, /* @tp_getattr@ */ |
338 | 0, /* @tp_setattr@ */ |
339 | 0, /* @tp_compare@ */ |
340 | 0, /* @tp_repr@ */ |
341 | 0, /* @tp_as_number@ */ |
342 | 0, /* @tp_as_sequence@ */ |
343 | 0, /* @tp_as_mapping@ */ |
344 | 0, /* @tp_hash@ */ |
345 | 0, /* @tp_call@ */ |
346 | 0, /* @tp_str@ */ |
347 | 0, /* @tp_getattro@ */ |
348 | 0, /* @tp_setattro@ */ |
349 | 0, /* @tp_as_buffer@ */ |
350 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ |
351 | Py_TPFLAGS_BASETYPE, |
352 | |
353 | /* @tp_doc@ */ |
354 | "Key size constraints. This object asserts minimum and maximum (if\n\ |
355 | sizes, and requires the key length to be a multiple of some value.", |
356 | |
357 | 0, /* @tp_traverse@ */ |
358 | 0, /* @tp_clear@ */ |
359 | 0, /* @tp_richcompare@ */ |
360 | 0, /* @tp_weaklistoffset@ */ |
361 | 0, /* @tp_iter@ */ |
362 | 0, /* @tp_iternexr@ */ |
363 | 0, /* @tp_methods@ */ |
364 | keyszrange_pymembers, /* @tp_members@ */ |
365 | 0, /* @tp_getset@ */ |
366 | 0, /* @tp_base@ */ |
367 | 0, /* @tp_dict@ */ |
368 | 0, /* @tp_descr_get@ */ |
369 | 0, /* @tp_descr_set@ */ |
370 | 0, /* @tp_dictoffset@ */ |
371 | 0, /* @tp_init@ */ |
372 | PyType_GenericAlloc, /* @tp_alloc@ */ |
373 | keyszrange_pynew, /* @tp_new@ */ |
3aa33042 |
374 | 0, /* @tp_free@ */ |
d7ab1bab |
375 | 0 /* @tp_is_gc@ */ |
376 | }; |
377 | |
378 | static PyTypeObject keyszset_pytype_skel = { |
379 | PyObject_HEAD_INIT(&PyType_Type) 0, /* Header */ |
380 | "catacomb.KeySZSet", /* @tp_name@ */ |
381 | sizeof(keyszset_pyobj), /* @tp_basicsize@ */ |
382 | 0, /* @tp_itemsize@ */ |
383 | |
3aa33042 |
384 | 0, /* @tp_dealloc@ */ |
d7ab1bab |
385 | 0, /* @tp_print@ */ |
386 | 0, /* @tp_getattr@ */ |
387 | 0, /* @tp_setattr@ */ |
388 | 0, /* @tp_compare@ */ |
389 | 0, /* @tp_repr@ */ |
390 | 0, /* @tp_as_number@ */ |
391 | 0, /* @tp_as_sequence@ */ |
392 | 0, /* @tp_as_mapping@ */ |
393 | 0, /* @tp_hash@ */ |
394 | 0, /* @tp_call@ */ |
395 | 0, /* @tp_str@ */ |
396 | 0, /* @tp_getattro@ */ |
397 | 0, /* @tp_setattro@ */ |
398 | 0, /* @tp_as_buffer@ */ |
399 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ |
400 | Py_TPFLAGS_BASETYPE, |
401 | |
402 | /* @tp_doc@ */ |
403 | "Key size constraints. This object requires the key to be one of a\n\ |
404 | few listed sizes.", |
405 | |
406 | 0, /* @tp_traverse@ */ |
407 | 0, /* @tp_clear@ */ |
408 | 0, /* @tp_richcompare@ */ |
409 | 0, /* @tp_weaklistoffset@ */ |
410 | 0, /* @tp_iter@ */ |
411 | 0, /* @tp_iternexr@ */ |
412 | 0, /* @tp_methods@ */ |
413 | keyszset_pymembers, /* @tp_members@ */ |
414 | keyszset_pygetset, /* @tp_getset@ */ |
415 | 0, /* @tp_base@ */ |
416 | 0, /* @tp_dict@ */ |
417 | 0, /* @tp_descr_get@ */ |
418 | 0, /* @tp_descr_set@ */ |
419 | 0, /* @tp_dictoffset@ */ |
420 | 0, /* @tp_init@ */ |
421 | PyType_GenericAlloc, /* @tp_alloc@ */ |
422 | keyszset_pynew, /* @tp_new@ */ |
3aa33042 |
423 | 0, /* @tp_free@ */ |
d7ab1bab |
424 | 0 /* @tp_is_gc@ */ |
425 | }; |
426 | |
427 | /*----- Symmetric encryption ----------------------------------------------*/ |
428 | |
429 | PyTypeObject *gccipher_pytype, *gcipher_pytype; |
430 | |
431 | CONVFUNC(gccipher, gccipher *, GCCIPHER_CC) |
432 | CONVFUNC(gcipher, gcipher *, GCIPHER_C) |
433 | |
434 | PyObject *gcipher_pywrap(PyObject *cobj, gcipher *c, unsigned f) |
435 | { |
436 | gcipher_pyobj *g; |
437 | if (!cobj) cobj = gccipher_pywrap((/*unconst*/ gccipher *)GC_CLASS(c)); |
438 | else Py_INCREF(cobj); |
439 | g = PyObject_NEW(gcipher_pyobj, (PyTypeObject *)cobj); |
440 | g->c = c; |
441 | g->f = f; |
442 | return ((PyObject *)g); |
443 | } |
444 | |
445 | static PyObject *gcipher_pynew(PyTypeObject *ty, PyObject *arg, PyObject *kw) |
446 | { |
447 | char *kwlist[] = { "k", 0 }; |
448 | char *k; |
449 | int sz; |
450 | |
451 | if (!PyArg_ParseTupleAndKeywords(arg, kw, "s#:new", kwlist, &k, &sz)) |
452 | goto end; |
453 | if (keysz(sz, GCCIPHER_CC(ty)->keysz) != sz) VALERR("bad key length"); |
454 | return (gcipher_pywrap((PyObject *)ty, |
455 | GC_INIT(GCCIPHER_CC(ty), k, sz), |
456 | f_freeme)); |
457 | end: |
458 | return (0); |
459 | } |
460 | |
461 | PyObject *gccipher_pywrap(gccipher *cc) |
462 | { |
df9f8366 |
463 | gccipher_pyobj *g = newtype(gccipher_pytype, 0, cc->name); |
d7ab1bab |
464 | g->cc = cc; |
df9f8366 |
465 | g->ty.type.tp_basicsize = sizeof(gcipher_pyobj); |
466 | g->ty.type.tp_base = gcipher_pytype; |
d7ab1bab |
467 | Py_INCREF(gcipher_pytype); |
df9f8366 |
468 | g->ty.type.tp_flags = (Py_TPFLAGS_DEFAULT | |
469 | Py_TPFLAGS_BASETYPE | |
470 | Py_TPFLAGS_HEAPTYPE); |
471 | g->ty.type.tp_alloc = PyType_GenericAlloc; |
472 | g->ty.type.tp_free = 0; |
473 | g->ty.type.tp_new = gcipher_pynew; |
474 | PyType_Ready(&g->ty.type); |
d7ab1bab |
475 | return ((PyObject *)g); |
476 | } |
477 | |
478 | static void gcipher_pydealloc(PyObject *me) |
479 | { |
480 | if (GCIPHER_F(me) & f_freeme) |
481 | GC_DESTROY(GCIPHER_C(me)); |
482 | Py_DECREF(me->ob_type); |
3aa33042 |
483 | FREEOBJ(me); |
d7ab1bab |
484 | } |
485 | |
486 | static PyObject *gccget_name(PyObject *me, void *hunoz) |
487 | { return (PyString_FromString(GCCIPHER_CC(me)->name)); } |
488 | |
489 | static PyObject *gccget_keysz(PyObject *me, void *hunoz) |
490 | { return (keysz_pywrap(GCCIPHER_CC(me)->keysz)); } |
491 | |
492 | static PyObject *gccget_blksz(PyObject *me, void *hunoz) |
493 | { return (PyInt_FromLong(GCCIPHER_CC(me)->blksz)); } |
494 | |
495 | static PyObject *gcmeth_encrypt(PyObject *me, PyObject *arg) |
496 | { |
497 | char *p; |
498 | int sz; |
499 | PyObject *rc = 0; |
500 | |
501 | if (!PyArg_ParseTuple(arg, "s#:encrypt", &p, &sz)) return (0); |
502 | rc = bytestring_pywrap(0, sz); |
503 | GC_ENCRYPT(GCIPHER_C(me), p, PyString_AS_STRING(rc), sz); |
504 | return (rc); |
505 | } |
506 | |
507 | static PyObject *gcmeth_enczero(PyObject *me, PyObject *arg) |
508 | { |
509 | char *p; |
510 | int sz; |
511 | PyObject *rc = 0; |
512 | |
513 | if (!PyArg_ParseTuple(arg, "i:enczero", &sz)) return (0); |
514 | rc = bytestring_pywrap(0, sz); |
515 | p = PyString_AS_STRING(rc); |
516 | memset(p, 0, sz); |
517 | GC_ENCRYPT(GCIPHER_C(me), p, p, sz); |
518 | return (rc); |
519 | } |
520 | |
521 | static PyObject *gcmeth_decrypt(PyObject *me, PyObject *arg) |
522 | { |
523 | char *p; |
524 | int sz; |
525 | PyObject *rc = 0; |
526 | |
527 | if (!PyArg_ParseTuple(arg, "s#:decrypt", &p, &sz)) return (0); |
528 | rc = bytestring_pywrap(0, sz); |
529 | GC_DECRYPT(GCIPHER_C(me), p, PyString_AS_STRING(rc), sz); |
530 | return (rc); |
531 | } |
532 | |
533 | static PyObject *gcmeth_deczero(PyObject *me, PyObject *arg) |
534 | { |
535 | char *p; |
536 | int sz; |
537 | PyObject *rc = 0; |
538 | |
539 | if (!PyArg_ParseTuple(arg, "i:deczero", &sz)) return (0); |
540 | rc = bytestring_pywrap(0, sz); |
541 | p = PyString_AS_STRING(rc); |
542 | memset(p, 0, sz); |
543 | GC_DECRYPT(GCIPHER_C(me), p, p, sz); |
544 | return (rc); |
545 | } |
546 | |
547 | static PyObject *gcmeth_setiv(PyObject *me, PyObject *arg) |
548 | { |
549 | char *p; |
550 | int sz; |
551 | |
552 | if (!PyArg_ParseTuple(arg, "s#:setiv", &p, &sz)) goto end; |
553 | if (!GC_CLASS(GCIPHER_C(me))->blksz) VALERR("not a block cipher mode"); |
554 | if (sz != GC_CLASS(GCIPHER_C(me))->blksz) VALERR("bad IV length"); |
555 | GC_SETIV(GCIPHER_C(me), p); |
556 | RETURN_ME; |
557 | end: |
558 | return (0); |
559 | } |
560 | |
561 | static PyObject *gcmeth_bdry(PyObject *me, PyObject *arg) |
562 | { |
563 | if (!PyArg_ParseTuple(arg, ":bdry")) goto end; |
564 | if (!GC_CLASS(GCIPHER_C(me))->blksz) VALERR("not a block cipher mode"); |
565 | GC_BDRY(GCIPHER_C(me)); |
566 | RETURN_ME; |
567 | end: |
568 | return (0); |
569 | } |
570 | |
571 | static PyGetSetDef gccipher_pygetset[] = { |
572 | #define GETSETNAME(op, name) gcc##op##_##name |
573 | GET (keysz, "CC.keysz -> acceptable key sizes") |
574 | GET (blksz, "CC.blksz -> block size, or zero") |
575 | GET (name, "CC.name -> name of this kind of cipher") |
576 | #undef GETSETNAME |
577 | { 0 } |
578 | }; |
579 | |
580 | static PyMethodDef gcipher_pymethods[] = { |
581 | #define METHNAME(name) gcmeth_##name |
582 | METH (encrypt, "C.encrypt(PT) -> CT") |
583 | METH (enczero, "C.enczero(N) -> CT") |
584 | METH (decrypt, "C.decrypt(CT) -> PT") |
585 | METH (deczero, "C.deczero(N) -> PT") |
586 | METH (setiv, "C.setiv(IV)") |
587 | METH (bdry, "C.bdry()") |
588 | #undef METHNAME |
589 | { 0 } |
590 | }; |
591 | |
592 | static PyTypeObject gccipher_pytype_skel = { |
593 | PyObject_HEAD_INIT(&PyType_Type) 0, /* Header */ |
594 | "catacomb.GCCipher", /* @tp_name@ */ |
595 | sizeof(gccipher_pyobj), /* @tp_basicsize@ */ |
596 | 0, /* @tp_itemsize@ */ |
597 | |
598 | 0, /* @tp_dealloc@ */ |
599 | 0, /* @tp_print@ */ |
600 | 0, /* @tp_getattr@ */ |
601 | 0, /* @tp_setattr@ */ |
602 | 0, /* @tp_compare@ */ |
603 | 0, /* @tp_repr@ */ |
604 | 0, /* @tp_as_number@ */ |
605 | 0, /* @tp_as_sequence@ */ |
606 | 0, /* @tp_as_mapping@ */ |
607 | 0, /* @tp_hash@ */ |
608 | 0, /* @tp_call@ */ |
609 | 0, /* @tp_str@ */ |
610 | 0, /* @tp_getattro@ */ |
611 | 0, /* @tp_setattro@ */ |
612 | 0, /* @tp_as_buffer@ */ |
613 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ |
614 | Py_TPFLAGS_BASETYPE, |
615 | |
616 | /* @tp_doc@ */ |
617 | "Symmetric cipher metaclass.", |
618 | |
619 | 0, /* @tp_traverse@ */ |
620 | 0, /* @tp_clear@ */ |
621 | 0, /* @tp_richcompare@ */ |
622 | 0, /* @tp_weaklistoffset@ */ |
623 | 0, /* @tp_iter@ */ |
624 | 0, /* @tp_iternexr@ */ |
625 | 0, /* @tp_methods@ */ |
626 | 0, /* @tp_members@ */ |
627 | gccipher_pygetset, /* @tp_getset@ */ |
628 | 0, /* @tp_base@ */ |
629 | 0, /* @tp_dict@ */ |
630 | 0, /* @tp_descr_get@ */ |
631 | 0, /* @tp_descr_set@ */ |
632 | 0, /* @tp_dictoffset@ */ |
633 | 0, /* @tp_init@ */ |
634 | PyType_GenericAlloc, /* @tp_alloc@ */ |
635 | abstract_pynew, /* @tp_new@ */ |
3aa33042 |
636 | 0, /* @tp_free@ */ |
d7ab1bab |
637 | 0 /* @tp_is_gc@ */ |
638 | }; |
639 | |
640 | static PyTypeObject gcipher_pytype_skel = { |
641 | PyObject_HEAD_INIT(&PyType_Type) 0, /* Header */ |
642 | "catacomb.GCipher", /* @tp_name@ */ |
643 | sizeof(gcipher_pyobj), /* @tp_basicsize@ */ |
644 | 0, /* @tp_itemsize@ */ |
645 | |
646 | gcipher_pydealloc, /* @tp_dealloc@ */ |
647 | 0, /* @tp_print@ */ |
648 | 0, /* @tp_getattr@ */ |
649 | 0, /* @tp_setattr@ */ |
650 | 0, /* @tp_compare@ */ |
651 | 0, /* @tp_repr@ */ |
652 | 0, /* @tp_as_number@ */ |
653 | 0, /* @tp_as_sequence@ */ |
654 | 0, /* @tp_as_mapping@ */ |
655 | 0, /* @tp_hash@ */ |
656 | 0, /* @tp_call@ */ |
657 | 0, /* @tp_str@ */ |
658 | 0, /* @tp_getattro@ */ |
659 | 0, /* @tp_setattro@ */ |
660 | 0, /* @tp_as_buffer@ */ |
661 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ |
662 | Py_TPFLAGS_BASETYPE, |
663 | |
664 | /* @tp_doc@ */ |
665 | "Symmetric cipher, abstract base class.", |
666 | |
667 | 0, /* @tp_traverse@ */ |
668 | 0, /* @tp_clear@ */ |
669 | 0, /* @tp_richcompare@ */ |
670 | 0, /* @tp_weaklistoffset@ */ |
671 | 0, /* @tp_iter@ */ |
672 | 0, /* @tp_iternexr@ */ |
673 | gcipher_pymethods, /* @tp_methods@ */ |
674 | 0, /* @tp_members@ */ |
675 | 0, /* @tp_getset@ */ |
676 | 0, /* @tp_base@ */ |
677 | 0, /* @tp_dict@ */ |
678 | 0, /* @tp_descr_get@ */ |
679 | 0, /* @tp_descr_set@ */ |
680 | 0, /* @tp_dictoffset@ */ |
681 | 0, /* @tp_init@ */ |
682 | PyType_GenericAlloc, /* @tp_alloc@ */ |
683 | abstract_pynew, /* @tp_new@ */ |
3aa33042 |
684 | 0, /* @tp_free@ */ |
d7ab1bab |
685 | 0 /* @tp_is_gc@ */ |
686 | }; |
687 | |
688 | /*----- Hash functions ----------------------------------------------------*/ |
689 | |
690 | PyTypeObject *gchash_pytype, *ghash_pytype; |
691 | |
692 | CONVFUNC(gchash, gchash *, GCHASH_CH) |
693 | CONVFUNC(ghash, ghash *, GHASH_H) |
694 | |
695 | static PyObject *ghash_pynew(PyTypeObject *ty, PyObject *arg, PyObject *kw) |
696 | { |
697 | char *kwlist[] = { 0 }; |
698 | if (!PyArg_ParseTupleAndKeywords(arg, kw, ":new", kwlist)) |
699 | goto end; |
700 | return (ghash_pywrap((PyObject *)ty, GH_INIT(GCHASH_CH(ty)), f_freeme)); |
701 | end: |
702 | return (0); |
703 | } |
704 | |
705 | PyObject *gchash_pywrap(gchash *ch) |
706 | { |
df9f8366 |
707 | gchash_pyobj *g = newtype(gchash_pytype, 0, ch->name); |
d7ab1bab |
708 | g->ch = ch; |
df9f8366 |
709 | g->ty.type.tp_basicsize = sizeof(ghash_pyobj); |
710 | g->ty.type.tp_base = ghash_pytype; |
d7ab1bab |
711 | Py_INCREF(ghash_pytype); |
df9f8366 |
712 | g->ty.type.tp_flags = (Py_TPFLAGS_DEFAULT | |
713 | Py_TPFLAGS_BASETYPE | |
714 | Py_TPFLAGS_HEAPTYPE); |
715 | g->ty.type.tp_alloc = PyType_GenericAlloc; |
716 | g->ty.type.tp_free = 0; |
717 | g->ty.type.tp_new = ghash_pynew; |
718 | PyType_Ready(&g->ty.type); |
d7ab1bab |
719 | return ((PyObject *)g); |
720 | } |
721 | |
722 | PyObject *ghash_pywrap(PyObject *cobj, ghash *h, unsigned f) |
723 | { |
724 | ghash_pyobj *g; |
725 | if (!cobj) cobj = gchash_pywrap((/*unconst*/ gchash *)GH_CLASS(h)); |
726 | else Py_INCREF(cobj); |
727 | g = PyObject_NEW(ghash_pyobj, (PyTypeObject *)cobj); |
728 | g->h = h; |
729 | g->f = f; |
730 | return ((PyObject *)g); |
731 | } |
732 | |
733 | static void ghash_pydealloc(PyObject *me) |
734 | { |
735 | if (GHASH_F(me) & f_freeme) |
736 | GH_DESTROY(GHASH_H(me)); |
737 | Py_DECREF(me->ob_type); |
3aa33042 |
738 | FREEOBJ(me); |
d7ab1bab |
739 | } |
740 | |
741 | static PyObject *gchget_name(PyObject *me, void *hunoz) |
742 | { return (PyString_FromString(GCHASH_CH(me)->name)); } |
743 | |
744 | static PyObject *gchget_hashsz(PyObject *me, void *hunoz) |
745 | { return (PyInt_FromLong(GCHASH_CH(me)->hashsz)); } |
746 | |
747 | static PyObject *gchget_bufsz(PyObject *me, void *hunoz) |
748 | { return (PyInt_FromLong(GCHASH_CH(me)->bufsz)); } |
749 | |
750 | static PyObject *ghmeth_hash(PyObject *me, PyObject *arg) |
751 | { |
752 | char *p; |
753 | int sz; |
754 | if (!PyArg_ParseTuple(arg, "s#:hash", &p, &sz)) return (0); |
755 | GH_HASH(GHASH_H(me), p, sz); |
756 | RETURN_ME; |
757 | } |
758 | |
759 | static PyObject *ghmeth_done(PyObject *me, PyObject *arg) |
760 | { |
761 | ghash *g; |
762 | PyObject *rc; |
763 | if (!PyArg_ParseTuple(arg, ":done")) return (0); |
764 | g = GH_COPY(GHASH_H(me)); |
765 | rc = bytestring_pywrap(0, g->ops->c->hashsz); |
766 | GH_DONE(g, PyString_AS_STRING(rc)); |
767 | GH_DESTROY(g); |
768 | return (rc); |
769 | } |
770 | |
771 | static PyGetSetDef gchash_pygetset[] = { |
772 | #define GETSETNAME(op, name) gch##op##_##name |
773 | GET (bufsz, "CH.bufsz -> hash buffer size, or zero") |
774 | GET (hashsz, "CH.blksz -> hash output size") |
775 | GET (name, "CH.name -> name of this kind of hash") |
776 | #undef GETSETNAME |
777 | { 0 } |
778 | }; |
779 | |
780 | static PyMethodDef ghash_pymethods[] = { |
781 | #define METHNAME(name) ghmeth_##name |
782 | METH (hash, "H.hash(M)") |
783 | METH (done, "H.done() -> HASH") |
784 | #undef METHNAME |
785 | { 0 } |
786 | }; |
787 | |
788 | static PyTypeObject gchash_pytype_skel = { |
789 | PyObject_HEAD_INIT(&PyType_Type) 0, /* Header */ |
790 | "catacomb.GCHash", /* @tp_name@ */ |
791 | sizeof(gchash_pyobj), /* @tp_basicsize@ */ |
792 | 0, /* @tp_itemsize@ */ |
793 | |
794 | 0, /* @tp_dealloc@ */ |
795 | 0, /* @tp_print@ */ |
796 | 0, /* @tp_getattr@ */ |
797 | 0, /* @tp_setattr@ */ |
798 | 0, /* @tp_compare@ */ |
799 | 0, /* @tp_repr@ */ |
800 | 0, /* @tp_as_number@ */ |
801 | 0, /* @tp_as_sequence@ */ |
802 | 0, /* @tp_as_mapping@ */ |
803 | 0, /* @tp_hash@ */ |
804 | 0, /* @tp_call@ */ |
805 | 0, /* @tp_str@ */ |
806 | 0, /* @tp_getattro@ */ |
807 | 0, /* @tp_setattro@ */ |
808 | 0, /* @tp_as_buffer@ */ |
809 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ |
810 | Py_TPFLAGS_BASETYPE, |
811 | |
812 | /* @tp_doc@ */ |
813 | "Hash function metaclass.", |
814 | |
815 | 0, /* @tp_traverse@ */ |
816 | 0, /* @tp_clear@ */ |
817 | 0, /* @tp_richcompare@ */ |
818 | 0, /* @tp_weaklistoffset@ */ |
819 | 0, /* @tp_iter@ */ |
820 | 0, /* @tp_iternexr@ */ |
821 | 0, /* @tp_methods@ */ |
822 | 0, /* @tp_members@ */ |
823 | gchash_pygetset, /* @tp_getset@ */ |
824 | 0, /* @tp_base@ */ |
825 | 0, /* @tp_dict@ */ |
826 | 0, /* @tp_descr_get@ */ |
827 | 0, /* @tp_descr_set@ */ |
828 | 0, /* @tp_dictoffset@ */ |
829 | 0, /* @tp_init@ */ |
830 | PyType_GenericAlloc, /* @tp_alloc@ */ |
831 | abstract_pynew, /* @tp_new@ */ |
3aa33042 |
832 | 0, /* @tp_free@ */ |
d7ab1bab |
833 | 0 /* @tp_is_gc@ */ |
834 | }; |
835 | |
836 | static PyTypeObject ghash_pytype_skel = { |
837 | PyObject_HEAD_INIT(&PyType_Type) 0, /* Header */ |
838 | "catacomb.GHash", /* @tp_name@ */ |
839 | sizeof(ghash_pyobj), /* @tp_basicsize@ */ |
840 | 0, /* @tp_itemsize@ */ |
841 | |
842 | ghash_pydealloc, /* @tp_dealloc@ */ |
843 | 0, /* @tp_print@ */ |
844 | 0, /* @tp_getattr@ */ |
845 | 0, /* @tp_setattr@ */ |
846 | 0, /* @tp_compare@ */ |
847 | 0, /* @tp_repr@ */ |
848 | 0, /* @tp_as_number@ */ |
849 | 0, /* @tp_as_sequence@ */ |
850 | 0, /* @tp_as_mapping@ */ |
851 | 0, /* @tp_hash@ */ |
852 | 0, /* @tp_call@ */ |
853 | 0, /* @tp_str@ */ |
854 | 0, /* @tp_getattro@ */ |
855 | 0, /* @tp_setattro@ */ |
856 | 0, /* @tp_as_buffer@ */ |
857 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ |
858 | Py_TPFLAGS_BASETYPE, |
859 | |
860 | /* @tp_doc@ */ |
861 | "Hash function, abstract base class.", |
862 | |
863 | 0, /* @tp_traverse@ */ |
864 | 0, /* @tp_clear@ */ |
865 | 0, /* @tp_richcompare@ */ |
866 | 0, /* @tp_weaklistoffset@ */ |
867 | 0, /* @tp_iter@ */ |
868 | 0, /* @tp_iternexr@ */ |
869 | ghash_pymethods, /* @tp_methods@ */ |
870 | 0, /* @tp_members@ */ |
871 | 0, /* @tp_getset@ */ |
872 | 0, /* @tp_base@ */ |
873 | 0, /* @tp_dict@ */ |
874 | 0, /* @tp_descr_get@ */ |
875 | 0, /* @tp_descr_set@ */ |
876 | 0, /* @tp_dictoffset@ */ |
877 | 0, /* @tp_init@ */ |
878 | PyType_GenericAlloc, /* @tp_alloc@ */ |
879 | abstract_pynew, /* @tp_new@ */ |
3aa33042 |
880 | 0, /* @tp_free@ */ |
d7ab1bab |
881 | 0 /* @tp_is_gc@ */ |
882 | }; |
883 | |
884 | /*----- Message authentication --------------------------------------------*/ |
885 | |
886 | PyTypeObject *gcmac_pytype, *gmac_pytype, *gmhash_pytype; |
887 | |
888 | CONVFUNC(gcmac, gcmac *, GCMAC_CM) |
889 | CONVFUNC(gmac, gmac *, GMAC_M) |
890 | CONVFUNC(gmhash, ghash *, GHASH_H) |
891 | |
892 | static PyObject *gmac_pynew(PyTypeObject *ty, PyObject *arg, PyObject *kw) |
893 | { |
894 | char *kwlist[] = { "k", 0 }; |
895 | char *k; |
896 | int sz; |
897 | |
898 | if (!PyArg_ParseTupleAndKeywords(arg, kw, "s#:new", kwlist, &k, &sz)) |
899 | goto end; |
900 | if (keysz(sz, GCMAC_CM(ty)->keysz) != sz) VALERR("bad key length"); |
901 | return (gmac_pywrap((PyObject *)ty, |
902 | GM_KEY(GCMAC_CM(ty), k, sz), |
903 | f_freeme)); |
904 | end: |
905 | return (0); |
906 | } |
907 | |
908 | static PyObject *gmhash_pynew(PyTypeObject *ty, PyObject *arg, PyObject *kw) |
909 | { |
910 | char *kwlist[] = { 0 }; |
911 | ghash_pyobj *g; |
912 | |
913 | if (!PyArg_ParseTupleAndKeywords(arg, kw, ":new", kwlist)) return (0); |
914 | g = PyObject_NEW(ghash_pyobj, ty); |
915 | g->h = GM_INIT(GMAC_M(ty)); |
916 | g->f = f_freeme; |
917 | Py_INCREF(ty); |
918 | return ((PyObject *)g); |
919 | } |
920 | |
921 | PyObject *gcmac_pywrap(gcmac *cm) |
922 | { |
df9f8366 |
923 | gcmac_pyobj *g = newtype(gcmac_pytype, 0, cm->name); |
d7ab1bab |
924 | g->cm = cm; |
df9f8366 |
925 | g->ty.type.tp_basicsize = sizeof(gmac_pyobj); |
926 | g->ty.type.tp_base = gmac_pytype; |
d7ab1bab |
927 | Py_INCREF(gmac_pytype); |
df9f8366 |
928 | g->ty.type.tp_flags = (Py_TPFLAGS_DEFAULT | |
d7ab1bab |
929 | Py_TPFLAGS_BASETYPE | |
930 | Py_TPFLAGS_HEAPTYPE); |
df9f8366 |
931 | g->ty.type.tp_alloc = PyType_GenericAlloc; |
932 | g->ty.type.tp_free = 0; |
933 | g->ty.type.tp_new = gmac_pynew; |
934 | PyType_Ready(&g->ty.type); |
d7ab1bab |
935 | return ((PyObject *)g); |
936 | } |
937 | |
938 | PyObject *gmac_pywrap(PyObject *cobj, gmac *m, unsigned f) |
939 | { |
940 | gmac_pyobj *g; |
941 | if (!cobj) cobj = gcmac_pywrap((/*unconst*/ gcmac *)GM_CLASS(m)); |
942 | else Py_INCREF(cobj); |
df9f8366 |
943 | g = newtype((PyTypeObject *)cobj, 0, 0); |
944 | g->ty.name = PyString_FromFormat("%s(keyed)", m->ops->c->name); |
945 | g->ty.type.tp_name = PyString_AS_STRING(g->ty.name); |
946 | g->ty.type.tp_base = gmhash_pytype; |
d7ab1bab |
947 | Py_INCREF(gmac_pytype); |
df9f8366 |
948 | g->ty.type.tp_flags = (Py_TPFLAGS_DEFAULT | |
949 | Py_TPFLAGS_BASETYPE | |
950 | Py_TPFLAGS_HEAPTYPE); |
951 | g->ty.type.tp_alloc = PyType_GenericAlloc; |
952 | g->ty.type.tp_free = 0; |
953 | g->ty.type.tp_new = gmhash_pynew; |
954 | PyType_Ready(&g->ty.type); |
d7ab1bab |
955 | g->m = m; |
956 | g->f = f; |
957 | return ((PyObject *)g); |
958 | } |
959 | |
960 | static void gmac_pydealloc(PyObject *me) |
961 | { |
962 | if (GMAC_F(me) & f_freeme) |
963 | GM_DESTROY(GMAC_M(me)); |
964 | Py_DECREF(me->ob_type); |
d7ab1bab |
965 | PyType_Type.tp_dealloc(me); |
966 | } |
967 | |
968 | static PyObject *gcmget_name(PyObject *me, void *hunoz) |
969 | { return (PyString_FromString(GCMAC_CM(me)->name)); } |
970 | |
971 | static PyObject *gcmget_keysz(PyObject *me, void *hunoz) |
972 | { return (keysz_pywrap(GCMAC_CM(me)->keysz)); } |
973 | |
974 | static PyObject *gcmget_tagsz(PyObject *me, void *hunoz) |
975 | { return (PyInt_FromLong(GCMAC_CM(me)->hashsz)); } |
976 | |
977 | static PyGetSetDef gcmac_pygetset[] = { |
978 | #define GETSETNAME(op, name) gcm##op##_##name |
979 | GET (keysz, "CM.keysz -> acceptable key sizes") |
980 | GET (tagsz, "CM.tagsz -> MAC output size") |
981 | GET (name, "CM.name -> name of this kind of MAC") |
982 | #undef GETSETNAME |
983 | { 0 } |
984 | }; |
985 | |
986 | static PyTypeObject gcmac_pytype_skel = { |
987 | PyObject_HEAD_INIT(&PyType_Type) 0, /* Header */ |
988 | "catacomb.GCMAC", /* @tp_name@ */ |
989 | sizeof(gchash_pyobj), /* @tp_basicsize@ */ |
990 | 0, /* @tp_itemsize@ */ |
991 | |
992 | 0, /* @tp_dealloc@ */ |
993 | 0, /* @tp_print@ */ |
994 | 0, /* @tp_getattr@ */ |
995 | 0, /* @tp_setattr@ */ |
996 | 0, /* @tp_compare@ */ |
997 | 0, /* @tp_repr@ */ |
998 | 0, /* @tp_as_number@ */ |
999 | 0, /* @tp_as_sequence@ */ |
1000 | 0, /* @tp_as_mapping@ */ |
1001 | 0, /* @tp_hash@ */ |
1002 | 0, /* @tp_call@ */ |
1003 | 0, /* @tp_str@ */ |
1004 | 0, /* @tp_getattro@ */ |
1005 | 0, /* @tp_setattro@ */ |
1006 | 0, /* @tp_as_buffer@ */ |
1007 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ |
1008 | Py_TPFLAGS_BASETYPE, |
1009 | |
1010 | /* @tp_doc@ */ |
1011 | "Message authentication code metametaclass.", |
1012 | |
1013 | 0, /* @tp_traverse@ */ |
1014 | 0, /* @tp_clear@ */ |
1015 | 0, /* @tp_richcompare@ */ |
1016 | 0, /* @tp_weaklistoffset@ */ |
1017 | 0, /* @tp_iter@ */ |
1018 | 0, /* @tp_iternexr@ */ |
1019 | 0, /* @tp_methods@ */ |
1020 | 0, /* @tp_members@ */ |
1021 | gcmac_pygetset, /* @tp_getset@ */ |
1022 | 0, /* @tp_base@ */ |
1023 | 0, /* @tp_dict@ */ |
1024 | 0, /* @tp_descr_get@ */ |
1025 | 0, /* @tp_descr_set@ */ |
1026 | 0, /* @tp_dictoffset@ */ |
1027 | 0, /* @tp_init@ */ |
1028 | PyType_GenericAlloc, /* @tp_alloc@ */ |
1029 | abstract_pynew, /* @tp_new@ */ |
3aa33042 |
1030 | 0, /* @tp_free@ */ |
d7ab1bab |
1031 | 0 /* @tp_is_gc@ */ |
1032 | }; |
1033 | |
1034 | static PyTypeObject gmac_pytype_skel = { |
1035 | PyObject_HEAD_INIT(&PyType_Type) 0, /* Header */ |
1036 | "catacomb.GMAC", /* @tp_name@ */ |
1037 | sizeof(gmac_pyobj), /* @tp_basicsize@ */ |
1038 | 0, /* @tp_itemsize@ */ |
1039 | |
1040 | gmac_pydealloc, /* @tp_dealloc@ */ |
1041 | 0, /* @tp_print@ */ |
1042 | 0, /* @tp_getattr@ */ |
1043 | 0, /* @tp_setattr@ */ |
1044 | 0, /* @tp_compare@ */ |
1045 | 0, /* @tp_repr@ */ |
1046 | 0, /* @tp_as_number@ */ |
1047 | 0, /* @tp_as_sequence@ */ |
1048 | 0, /* @tp_as_mapping@ */ |
1049 | 0, /* @tp_hash@ */ |
1050 | 0, /* @tp_call@ */ |
1051 | 0, /* @tp_str@ */ |
1052 | 0, /* @tp_getattro@ */ |
1053 | 0, /* @tp_setattro@ */ |
1054 | 0, /* @tp_as_buffer@ */ |
1055 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ |
1056 | Py_TPFLAGS_BASETYPE, |
1057 | |
1058 | /* @tp_doc@ */ |
1059 | "Message authentication code metaclass, abstract base class.", |
1060 | |
1061 | 0, /* @tp_traverse@ */ |
1062 | 0, /* @tp_clear@ */ |
1063 | 0, /* @tp_richcompare@ */ |
1064 | 0, /* @tp_weaklistoffset@ */ |
1065 | 0, /* @tp_iter@ */ |
1066 | 0, /* @tp_iternexr@ */ |
1067 | 0, /* @tp_methods@ */ |
1068 | 0, /* @tp_members@ */ |
1069 | 0, /* @tp_getset@ */ |
1070 | 0, /* @tp_base@ */ |
1071 | 0, /* @tp_dict@ */ |
1072 | 0, /* @tp_descr_get@ */ |
1073 | 0, /* @tp_descr_set@ */ |
1074 | 0, /* @tp_dictoffset@ */ |
1075 | 0, /* @tp_init@ */ |
1076 | PyType_GenericAlloc, /* @tp_alloc@ */ |
1077 | abstract_pynew, /* @tp_new@ */ |
3aa33042 |
1078 | 0, /* @tp_free@ */ |
d7ab1bab |
1079 | 0 /* @tp_is_gc@ */ |
1080 | }; |
1081 | |
1082 | static PyTypeObject gmhash_pytype_skel = { |
1083 | PyObject_HEAD_INIT(&PyType_Type) 0, /* Header */ |
1084 | "catacomb.GMACHash", /* @tp_name@ */ |
1085 | sizeof(ghash_pyobj), /* @tp_basicsize@ */ |
1086 | 0, /* @tp_itemsize@ */ |
1087 | |
1088 | ghash_pydealloc, /* @tp_dealloc@ */ |
1089 | 0, /* @tp_print@ */ |
1090 | 0, /* @tp_getattr@ */ |
1091 | 0, /* @tp_setattr@ */ |
1092 | 0, /* @tp_compare@ */ |
1093 | 0, /* @tp_repr@ */ |
1094 | 0, /* @tp_as_number@ */ |
1095 | 0, /* @tp_as_sequence@ */ |
1096 | 0, /* @tp_as_mapping@ */ |
1097 | 0, /* @tp_hash@ */ |
1098 | 0, /* @tp_call@ */ |
1099 | 0, /* @tp_str@ */ |
1100 | 0, /* @tp_getattro@ */ |
1101 | 0, /* @tp_setattro@ */ |
1102 | 0, /* @tp_as_buffer@ */ |
1103 | Py_TPFLAGS_DEFAULT | /* @tp_flags@ */ |
1104 | Py_TPFLAGS_BASETYPE, |
1105 | |
1106 | /* @tp_doc@ */ |
1107 | "Message authentication code, abstract base class.", |
1108 | |
1109 | 0, /* @tp_traverse@ */ |
1110 | 0, /* @tp_clear@ */ |
1111 | 0, /* @tp_richcompare@ */ |
1112 | 0, /* @tp_weaklistoffset@ */ |
1113 | 0, /* @tp_iter@ */ |
1114 | 0, /* @tp_iternexr@ */ |
1115 | 0, /* @tp_methods@ */ |
1116 | 0, /* @tp_members@ */ |
1117 | 0, /* @tp_getset@ */ |
1118 | 0, /* @tp_base@ */ |
1119 | 0, /* @tp_dict@ */ |
1120 | 0, /* @tp_descr_get@ */ |
1121 | 0, /* @tp_descr_set@ */ |
1122 | 0, /* @tp_dictoffset@ */ |
1123 | 0, /* @tp_init@ */ |
1124 | PyType_GenericAlloc, /* @tp_alloc@ */ |
1125 | abstract_pynew, /* @tp_new@ */ |
3aa33042 |
1126 | 0, /* @tp_free@ */ |
d7ab1bab |
1127 | 0 /* @tp_is_gc@ */ |
1128 | }; |
1129 | |
1130 | /*----- Main code ---------------------------------------------------------*/ |
1131 | |
1132 | void algorithms_pyinit(void) |
1133 | { |
1134 | INITTYPE(keysz, root); |
1135 | INITTYPE(keyszany, keysz); |
1136 | INITTYPE(keyszrange, keysz); |
1137 | INITTYPE(keyszset, keysz); |
1138 | INITTYPE(gccipher, type); |
1139 | INITTYPE(gcipher, root); |
1140 | INITTYPE(gchash, type); |
1141 | INITTYPE(ghash, root); |
1142 | INITTYPE(gcmac, type); |
1143 | INITTYPE(gmac, type); |
1144 | INITTYPE(gmhash, ghash); |
1145 | } |
1146 | |
1147 | #define GEN(func, base) \ |
1148 | static PyObject *func(void) \ |
1149 | { \ |
1150 | PyObject *d = PyDict_New(); \ |
1151 | PyObject *o; \ |
1152 | int i; \ |
1153 | \ |
1154 | for (i = 0; g##base##tab[i]; i++) { \ |
1155 | o = gc##base##_pywrap((/*unconst*/ gc##base *)g##base##tab[i]); \ |
1156 | PyDict_SetItemString(d, \ |
1157 | (/*unconst*/ char *)g##base##tab[i]->name, \ |
1158 | o); \ |
1159 | Py_DECREF(o); \ |
1160 | } \ |
1161 | return (d); \ |
1162 | } |
1163 | GEN(gcciphers, cipher) |
1164 | GEN(gchashes, hash) |
1165 | GEN(gcmacs, mac) |
1166 | |
1167 | void algorithms_pyinsert(PyObject *mod) |
1168 | { |
1169 | PyObject *d; |
1170 | INSERT("KeySZ", keysz_pytype); |
1171 | INSERT("KeySZAny", keyszany_pytype); |
1172 | INSERT("KeySZRange", keyszrange_pytype); |
1173 | INSERT("KeySZSet", keyszset_pytype); |
1174 | INSERT("GCCipher", gccipher_pytype); |
1175 | INSERT("GCipher", gcipher_pytype); |
1176 | INSERT("gcciphers", gcciphers()); |
1177 | INSERT("GCHash", gchash_pytype); |
1178 | INSERT("GHash", ghash_pytype); |
1179 | INSERT("gchashes", d = gchashes()); |
1180 | sha_pyobj = PyDict_GetItemString(d, "sha"); Py_INCREF(sha_pyobj); |
1181 | has160_pyobj = PyDict_GetItemString(d, "has160"); Py_INCREF(has160_pyobj); |
1182 | INSERT("GCMAC", gcmac_pytype); |
1183 | INSERT("GMAC", gmac_pytype); |
1184 | INSERT("GMACHash", gmhash_pytype); |
1185 | INSERT("gcmacs", gcmacs()); |
1186 | } |
1187 | |
1188 | /*----- That's all, folks -------------------------------------------------*/ |