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   1 /* -*-c-*-
   2  *
   3  * Definitions for Catacomb bindings
   4  *
   5  * (c) 2004 Straylight/Edgeware
   6  */
   7
   8 /*----- Licensing notice --------------------------------------------------*
   9  *
  10  * This file is part of the Python interface to Catacomb.
  11  *
  12  * Catacomb/Python is free software; you can redistribute it and/or modify
  13  * it under the terms of the GNU General Public License as published by
  14  * the Free Software Foundation; either version 2 of the License, or
  15  * (at your option) any later version.
  16  *
  17  * Catacomb/Python is distributed in the hope that it will be useful,
  18  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  19  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  20  * GNU General Public License for more details.
  21  *
  22  * You should have received a copy of the GNU General Public License
  23  * along with Catacomb/Python; if not, write to the Free Software Foundation,
  24  * Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  25  */
  26
  27 #ifndef CATACOMB_PYTHON_H
  28 #define CATACOMB_PYTHON_H
  29
  30 #ifdef __cplusplus
  31   extern "C" {
  32 #endif
  33
  34 /*----- Header files ------------------------------------------------------*/
  35
  36 #include <Python.h>
  37 #include <longintrepr.h>
  38 #include <structmember.h>
  39
  40 #include <mLib/darray.h>
  41 #include <mLib/dstr.h>
  42 #include <mLib/macros.h>
  43 #include <mLib/quis.h>
  44 #include <mLib/unihash.h>
  45
  46 #include <catacomb/buf.h>
  47
  48 #include <catacomb/grand.h>
  49 #include <catacomb/rand.h>
  50 #include <catacomb/noise.h>
  51 #include <catacomb/bbs.h>
  52 #include <catacomb/mprand.h>
  53 #include <catacomb/lcrand.h>
  54 #include <catacomb/fibrand.h>
  55 #include <catacomb/dsarand.h>
  56 #include <catacomb/sslprf.h>
  57 #include <catacomb/tlsprf.h>
  58 #include <catacomb/blkc.h>
  59
  60 #include <catacomb/gcipher.h>
  61 #include <catacomb/ghash.h>
  62 #include <catacomb/gmac.h>
  63 #include <catacomb/md5.h>
  64 #include <catacomb/md5-hmac.h>
  65 #include <catacomb/sha.h>
  66 #include <catacomb/sha-mgf.h>
  67 #include <catacomb/sha-hmac.h>
  68
  69 #include <catacomb/mp.h>
  70 #include <catacomb/mpint.h>
  71 #include <catacomb/mpmul.h>
  72 #include <catacomb/mpcrt.h>
  73 #include <catacomb/mpmont.h>
  74 #include <catacomb/mpbarrett.h>
  75 #include <catacomb/mpreduce.h>
  76 #include <catacomb/mp-fibonacci.h>
  77
  78 #include <catacomb/pgen.h>
  79 #include <catacomb/pfilt.h>
  80 #include <catacomb/strongprime.h>
  81 #include <catacomb/limlee.h>
  82 #include <catacomb/dh.h>
  83 #include <catacomb/ptab.h>
  84 #include <catacomb/bintab.h>
  85 #include <catacomb/dsa.h>
  86
  87 #include <catacomb/gf.h>
  88 #include <catacomb/gfreduce.h>
  89 #include <catacomb/gfn.h>
  90
  91 #include <catacomb/field.h>
  92 #include <catacomb/field-guts.h>
  93
  94 #include <catacomb/ec.h>
  95 #include <catacomb/ec-raw.h>
  96 #include <catacomb/ectab.h>
  97
  98 #include <catacomb/group.h>
  99 #include <catacomb/group-guts.h>
 100
 101 #include <catacomb/gdsa.h>
 102 #include <catacomb/gkcdsa.h>
 103 #include <catacomb/rsa.h>
 104
 105 #include <catacomb/key.h>
 106 #include <catacomb/passphrase.h>
 107 #include <catacomb/pixie.h>
 108
 109 #include <catacomb/share.h>
 110 #include <catacomb/gfshare.h>
 111
 112 /*----- Utility macros ----------------------------------------------------*/
 113
 114 #define RETURN_OBJ(obj) do { Py_INCREF(obj); return (obj); } while (0)
 115 #define RETURN_NONE RETURN_OBJ(Py_None)
 116 #define RETURN_NOTIMPL RETURN_OBJ(Py_NotImplemented)
 117 #define RETURN_TRUE RETURN_OBJ(Py_True)
 118 #define RETURN_FALSE RETURN_OBJ(Py_False)
 119 #define RETURN_ME RETURN_OBJ(me)
 120
 121 #define EXCERR(exc, str) do {                                           \
 122   PyErr_SetString(exc, str);                                            \
 123   goto end;                                                             \
 124 } while (0)
 125 #define VALERR(str) EXCERR(PyExc_ValueError, str)
 126 #define TYERR(str) EXCERR(PyExc_TypeError, str)
 127 #define ZDIVERR(str) EXCERR(PyExc_ZeroDivisionError, str)
 128 #define SYSERR(str) EXCERR(PyExc_SystemError, str)
 129 #define NIERR(str) EXCERR(PyExc_NotImplementedError, str)
 130 #define INDEXERR(idx) do {                                              \
 131   PyErr_SetObject(PyExc_KeyError, idx);                                 \
 132   goto end;                                                             \
 133 } while (0)
 134 #define OSERR(name) do {                                                \
 135   PyErr_SetFromErrnoWithFilename(PyExc_OSError, name);                  \
 136   goto end;                                                             \
 137 } while (0)
 138 #define PGENERR do { pgenerr(); goto end; } while (0)
 139
 140 #define CONVFUNC(ty, cty, ext)                                          \
 141   int conv##ty(PyObject *o, void *p)                                    \
 142   {                                                                     \
 143     if (!PyObject_TypeCheck(o, ty##_pytype))                            \
 144       TYERR("wanted a " #ty);                                           \
 145     *(cty *)p = ext(o);                                                 \
 146     return (1);                                                         \
 147   end:                                                                  \
 148     return (0);                                                         \
 149   }
 150
 151 #if PY_VERSION_HEX < 0x02050000         /* Compatibility hack */
 152 #  define ht_name name
 153 #  define ht_type type
 154 #endif
 155
 156 #define root_pytype 0
 157 #define type_pytype &PyType_Type
 158 #define INITTYPE(ty, base) do {                                         \
 159   ty##_pytype_skel.tp_base = base##_pytype;                             \
 160   ty##_pytype = inittype(&ty##_pytype_skel);                            \
 161 } while (0)
 162
 163 #define INSERT(name, ob) do {                                           \
 164   PyObject *_o = (PyObject *)(ob);                                      \
 165   Py_INCREF(_o);                                                        \
 166   PyModule_AddObject(mod, name, _o);                                    \
 167 } while (0)
 168
 169 #define INSEXC(name, var, base, meth)                                   \
 170   INSERT(name, var = mkexc(mod, base, name, meth))
 171
 172 #define METH(func, doc)                                                 \
 173   { #func, METHNAME(func), METH_VARARGS, doc },
 174 #define KWMETH(func, doc)                                               \
 175   { #func, (PyCFunction)METHNAME(func),                                 \
 176     METH_VARARGS | METH_KEYWORDS, doc },
 177
 178 #define GET(func, doc)                                                  \
 179   { #func, GETSETNAME(get, func), 0, doc },
 180 #define GETSET(func, doc)                                               \
 181   { #func, GETSETNAME(get, func), GETSETNAME(set, func), doc },
 182
 183 #define MEMBER(name, ty, f, doc)                                        \
 184   { #name, ty, offsetof(MEMBERSTRUCT, name), f, doc },
 185
 186 #define MODULES(_)                                                      \
 187   _(util)                                                               \
 188   _(bytestring) _(buffer)                                               \
 189   _(rand) _(algorithms) _(pubkey) _(pgen)                               \
 190   _(mp) _(field) _(ec) _(group)                                         \
 191   _(passphrase) _(share) _(key)
 192 #define DOMODINIT(m) m##_pyinit();
 193 #define DOMODINSERT(m) m##_pyinsert(mod);
 194 #define INIT_MODULES do { MODULES(DOMODINIT) } while (0)
 195 #define INSERT_MODULES do { MODULES(DOMODINSERT) } while (0)
 196
 197 #define DO(m)                                                           \
 198   extern void m##_pyinit(void);                                         \
 199   extern void m##_pyinsert(PyObject *);
 200 MODULES(DO)
 201 #undef DO
 202
 203 #define FREEOBJ(obj)                                                    \
 204   (((PyObject *)(obj))->ob_type->tp_free((PyObject *)(obj)))
 205
 206 #define GEN(func, base)                                                 \
 207   static PyObject *func(void)                                           \
 208   {                                                                     \
 209     PyObject *d = PyDict_New();                                         \
 210     PyObject *o;                                                        \
 211     int i;                                                              \
 212                                                                         \
 213     for (i = 0; g##base##tab[i]; i++) {                                 \
 214       o = gc##base##_pywrap((/*unconst*/ gc##base *)g##base##tab[i]);   \
 215       PyDict_SetItemString(d,                                           \
 216                            (/*unconst*/ char *)g##base##tab[i]->name,   \
 217                            o);                                          \
 218       Py_DECREF(o);                                                     \
 219     }                                                                   \
 220     return (d);                                                         \
 221   }
 222
 223 struct nameval { const char *name; unsigned long value; };
 224 extern void setconstants(PyObject *, const struct nameval *);
 225
 226 extern PyObject *mexp_common(PyObject *, PyObject *, size_t,
 227                              PyObject *(*id)(PyObject *),
 228                              int (*fill)(void *, PyObject *,
 229                                          PyObject *, PyObject *),
 230                              PyObject *(*exp)(PyObject *, void *, int),
 231                              void (*drop)(void *));
 232
 233 extern int convulong(PyObject *, void *);
 234 #define DECL_CONVU_(n) extern int convu##n(PyObject *, void *);
 235 DOUINTSZ(DECL_CONVU_)
 236 extern int convmpw(PyObject *, void *);
 237 extern int convuint(PyObject *, void *);
 238 extern int convk64(PyObject *, void *);
 239 extern int convszt(PyObject *, void *);
 240 extern int convbool(PyObject *, void *);
 241 extern PyObject *abstract_pynew(PyTypeObject *, PyObject *, PyObject *);
 242 extern PyObject *getbool(int);
 243 extern PyObject *getulong(unsigned long);
 244 extern PyObject *getk64(kludge64);
 245 extern void *newtype(PyTypeObject *, const PyTypeObject *, const char *);
 246
 247 extern PyObject *mkexc(PyObject *, PyObject *, const char *, PyMethodDef *);
 248 extern void typeready(PyTypeObject *);
 249 extern PyTypeObject *inittype(PyTypeObject *);
 250 extern void addmethods(const PyMethodDef *);
 251 extern PyMethodDef *donemethods(void);
 252
 253 /*----- Mapping methods ---------------------------------------------------*/
 254
 255 #define GMAP_METH(func, doc) { #func, gmapmeth_##func, METH_VARARGS, doc },
 256 #define GMAP_KWMETH(func, doc)                                          \
 257   { #func, (PyCFunction)gmapmeth_##func, METH_VARARGS|METH_KEYWORDS, doc },
 258 #define GMAP_METHDECL(func, doc)                                        \
 259   extern PyObject *gmapmeth_##func(PyObject *, PyObject *);
 260 #define GMAP_KWMETHDECL(func, doc)                                      \
 261   extern PyObject *gmapmeth_##func(PyObject *, PyObject *, PyObject *);
 262
 263 #define GMAP_DOROMETHODS(METH, KWMETH)                                  \
 264   METH  (has_key,       "D.has_key(KEY) -> BOOL")                       \
 265   METH  (keys,          "D.keys() -> LIST")                             \
 266   METH  (values,        "D.values() -> LIST")                           \
 267   METH  (items,         "D.items() -> LIST")                            \
 268   METH  (iterkeys,      "D.iterkeys() -> ITER")                         \
 269   METH  (itervalues,    "D.itervalues() -> ITER")                       \
 270   METH  (iteritems,     "D.iteritems() -> ITER")                        \
 271   KWMETH(get,           "D.get(KEY, [default = None]) -> VALUE")        \
 272
 273 #define GMAP_DOMETHODS(METH, KWMETH)                                    \
 274   GMAP_DOROMETHODS(METH, KWMETH)                                        \
 275   METH  (clear,         "D.clear()")                                    \
 276   KWMETH(setdefault,    "D.setdefault(K, [default = None]) -> VALUE")   \
 277   KWMETH(pop,           "D.pop(KEY, [default = <error>]) -> VALUE")     \
 278   METH  (popitem,       "D.popitem() -> (KEY, VALUE)")                  \
 279   METH  (update,        "D.update(MAP)")
 280
 281 GMAP_DOMETHODS(GMAP_METHDECL, GMAP_KWMETHDECL)
 282 #define GMAP_ROMETHODS GMAP_DOROMETHODS(GMAP_METH, GMAP_KWMETH)
 283 #define GMAP_METHODS GMAP_DOMETHODS(GMAP_METH, GMAP_KWMETH)
 284 extern Py_ssize_t gmap_pysize(PyObject *);
 285 extern PySequenceMethods gmap_pysequence;
 286 extern PyMethodDef gmap_pymethods[];
 287
 288 /*----- Bytestrings -------------------------------------------------------*/
 289
 290 PyTypeObject *bytestring_pyobj;
 291 PyObject *bytestring_pywrap(const void *, size_t);
 292 PyObject *bytestring_pywrapbuf(buf *);
 293
 294 /*----- Multiprecision arithmetic -----------------------------------------*/
 295
 296 typedef struct mp_pyobj {
 297   PyObject_HEAD
 298   mp *x;
 299 } mp_pyobj;
 300
 301 extern PyTypeObject *mp_pytype;
 302 extern PyTypeObject *gf_pytype;
 303 #define MP_X(o) (((mp_pyobj *)(o))->x)
 304 #define MP_PYCHECK(o) PyObject_TypeCheck((o), mp_pytype)
 305 #define GF_PYCHECK(o) PyObject_TypeCheck((o), gf_pytype)
 306
 307 extern mp *mp_frompylong(PyObject *);
 308 extern PyObject *mp_topylong(mp *);
 309 extern mp *tomp(PyObject *);
 310 extern mp *getmp(PyObject *);
 311 extern int convmp(PyObject *, void *);
 312 extern mp *getgf(PyObject *);
 313 extern int convgf(PyObject *, void *);
 314 extern PyObject *mp_pywrap(mp *);
 315 extern PyObject *gf_pywrap(mp *);
 316 extern mp *mp_frompyobject(PyObject *, int);
 317 extern PyObject *mp_topystring(mp *, int,
 318                                const char *, const char *, const char *);
 319 extern int mp_tolong_checked(mp *, long *);
 320
 321 /*----- Abstract fields ---------------------------------------------------*/
 322
 323 typedef struct field_pyobj {
 324   PyHeapTypeObject ty;
 325   field *f;
 326 } field_pyobj;
 327
 328 extern PyTypeObject *fe_pytype;
 329 #define FE_PYCHECK(o) PyObject_TypeCheck((o), fe_pytype)
 330 #define FE_F(o) (((fe_pyobj *)(o))->f)
 331 #define FE_FOBJ(o) ((PyObject *)(o)->ob_type)
 332 #define FE_X(o) (((fe_pyobj *)(o))->x)
 333 extern PyObject *fe_pywrap(PyObject *, mp *);
 334 extern mp *getfe(field *, PyObject *);
 335
 336 typedef struct fe_pyobj {
 337   PyObject_HEAD
 338   field *f;
 339   mp *x;
 340 } fe_pyobj;
 341
 342 extern PyTypeObject *field_pytype;
 343 extern PyTypeObject *primefield_pytype;
 344 extern PyTypeObject *niceprimefield_pytype;
 345 extern PyTypeObject *binfield_pytype;
 346 extern PyTypeObject *binpolyfield_pytype;
 347 extern PyTypeObject *binnormfield_pytype;
 348 #define FIELD_PYCHECK(o) PyObject_TypeCheck((o), field_pytype)
 349 #define FIELD_F(o) (((field_pyobj *)(o))->f)
 350 extern PyObject *field_pywrap(field *);
 351 extern field *field_copy(field *);
 352
 353 /*----- Elliptic curves ---------------------------------------------------*/
 354
 355 typedef struct ecpt_pyobj {
 356   PyObject_HEAD
 357   ec_curve *c;
 358   ec p;
 359 } ecpt_pyobj;
 360
 361 extern PyTypeObject *ecpt_pytype, *ecptcurve_pytype;
 362 #define ECPT_PYCHECK(o) PyObject_TypeCheck((o), ecpt_pytype)
 363 #define ECPTCURVE_PYCHECK(o) PyObject_TypeCheck((o), ecptcurve_pytype)
 364 #define ECPT_C(o) (((ecpt_pyobj *)(o))->c)
 365 #define ECPT_COBJ(o) ((PyObject *)(o)->ob_type)
 366 #define ECPT_FOBJ(o) ECCURVE_FOBJ(ECPT_COBJ((o)))
 367 #define ECPT_P(o) (&((ecpt_pyobj *)(o))->p)
 368 extern PyObject *ecpt_pywrap(PyObject *, ec *);
 369 extern PyObject *ecpt_pywrapout(void *, ec *);
 370 extern int toecpt(ec_curve *, ec *, PyObject *);
 371 extern int getecpt(ec_curve *, ec *, PyObject *);
 372 extern void getecptout(ec *, PyObject *);
 373 extern int convecpt(PyObject *, void *);
 374
 375 typedef struct eccurve_pyobj {
 376   PyHeapTypeObject ty;
 377   ec_curve *c;
 378   PyObject *fobj;
 379 } eccurve_pyobj;
 380
 381 extern PyTypeObject *eccurve_pytype;
 382 extern PyTypeObject *ecprimecurve_pytype;
 383 extern PyTypeObject *ecprimeprojcurve_pytype;
 384 extern PyTypeObject *ecbincurve_pytype;
 385 extern PyTypeObject *ecbinprojcurve_pytype;
 386 #define ECCURVE_PYCHECK(o) PyObject_TypeCheck((o), eccurve_pytype)
 387 #define ECCURVE_C(o) (((eccurve_pyobj *)(o))->c)
 388 #define ECCURVE_FOBJ(o) (((eccurve_pyobj *)(o))->fobj)
 389 extern PyObject *eccurve_pywrap(PyObject *, ec_curve *);
 390 extern ec_curve *eccurve_copy(ec_curve *);
 391
 392 typedef struct ecinfo_pyobj {
 393   PyObject_HEAD
 394   ec_info ei;
 395   PyObject *cobj;
 396 } ecinfo_pyobj;
 397
 398 extern PyTypeObject *ecinfo_pytype;
 399 #define ECINFO_PYCHECK(o) PyObject_TypeCheck((o), ecinfo_pytype)
 400 #define ECINFO_EI(o) (&((ecinfo_pyobj *)(o))->ei)
 401 #define ECINFO_COBJ(o) (((ecinfo_pyobj *)(o))->cobj)
 402 extern void ecinfo_copy(ec_info *, const ec_info *);
 403 extern PyObject *ecinfo_pywrap(ec_info *);
 404
 405 /*----- Cyclic groups -----------------------------------------------------*/
 406
 407 typedef struct fginfo_pyobj {
 408   PyObject_HEAD
 409   gprime_param dp;
 410 } fginfo_pyobj;
 411
 412 PyTypeObject *fginfo_pytype, *dhinfo_pytype, *bindhinfo_pytype;
 413 #define FGINFO_DP(fg) (&((fginfo_pyobj *)(fg))->dp)
 414 PyObject *fginfo_pywrap(gprime_param *, PyTypeObject *);
 415
 416 typedef struct ge_pyobj {
 417   PyObject_HEAD
 418   ge *x;
 419   group *g;
 420 } ge_pyobj;
 421
 422 extern PyTypeObject *ge_pytype;
 423 #define GE_PYCHECK(o) PyObject_TypeCheck((o), ge_pytype)
 424 #define GE_X(o) (((ge_pyobj *)(o))->x)
 425 #define GE_G(o) (((ge_pyobj *)(o))->g)
 426 #define GE_GOBJ(o) ((PyObject *)(group_pyobj *)(o)->ob_type)
 427 extern PyObject *ge_pywrap(PyObject *, ge *);
 428
 429 typedef struct group_pyobj {
 430   PyHeapTypeObject ty;
 431   group *g;
 432 } group_pyobj;
 433
 434 extern PyTypeObject *group_pytype;
 435 extern PyTypeObject *primegroup_pytype, *bingroup_pytype, *ecgroup_pytype;
 436 #define GROUP_G(o) (((group_pyobj *)(o))->g)
 437 extern PyObject *group_pywrap(group *);
 438 extern group *group_copy(group *);
 439
 440 /*----- Random number generators ------------------------------------------*/
 441
 442 #define f_freeme 1u
 443
 444 typedef struct grand_pyobj {
 445   PyObject_HEAD
 446   unsigned f;
 447   grand *r;
 448 } grand_pyobj;
 449
 450 extern PyTypeObject *grand_pytype, *truerand_pytype;
 451 extern PyTypeObject *lcrand_pytype,* fibrand_pytype;
 452 extern PyTypeObject *dsarand_pytype, *bbs_pytype;
 453 extern PyObject *rand_pyobj;
 454 #define GRAND_PYCHECK(o) PyObject_TypeCheck((o), grand_pytype)
 455 #define GRAND_F(o) (((grand_pyobj *)(o))->f)
 456 #define GRAND_R(o) (((grand_pyobj *)(o))->r)
 457 extern PyObject *grand_pywrap(grand *, unsigned);
 458 extern int convgrand(PyObject *, void *);
 459
 460 /*----- Key sizes ---------------------------------------------------------*/
 461
 462 typedef struct keysz_pyobj {
 463   PyObject_HEAD
 464   int dfl;
 465 } keysz_pyobj;
 466
 467 typedef struct keyszrange_pyobj {
 468   PyObject_HEAD
 469   int dfl;
 470   int min, max, mod;
 471 } keyszrange_pyobj;
 472
 473 typedef struct keyszset_pyobj {
 474   PyObject_HEAD
 475   int dfl;
 476   PyObject *set;
 477 } keyszset_pyobj;
 478
 479 #define KEYSZ_PYCHECK(o) PyObject_TypeCheck((o), keysz_pytype)
 480 extern PyObject *keysz_pywrap(const octet *);
 481
 482 /*----- Symmetric cryptography --------------------------------------------*/
 483
 484 typedef struct gccipher_pyobj {
 485   PyHeapTypeObject ty;
 486   gccipher *cc;
 487 } gccipher_pyobj;
 488
 489 extern PyTypeObject *gccipher_pytype;
 490 #define GCCIPHER_PYCHECK(o) PyObject_TypeCheck((o), gccipher_pytype)
 491 #define GCCIPHER_CC(o) (((gccipher_pyobj *)(o))->cc)
 492 #define GCCIPHER_F(o) (((gccipher_pyobj *)(o))->f)
 493 extern PyObject *gccipher_pywrap(gccipher *);
 494 extern int convgccipher(PyObject *, void *);
 495 extern int convgcipher(PyObject *, void *);
 496
 497 typedef struct gcipher_pyobj {
 498   PyObject_HEAD
 499   unsigned f;
 500   gcipher *c;
 501 } gcipher_pyobj;
 502
 503 extern PyTypeObject *gcipher_pytype;
 504 #define GCIPHER_PYCHECK(o) PyObject_TypeCheck((o), gcipher_pytype)
 505 #define GCIPHER_C(o) (((gcipher_pyobj *)(o))->c)
 506 #define GCIPHER_F(o) (((gcipher_pyobj *)(o))->f)
 507 extern PyObject *gcipher_pywrap(PyObject *, gcipher *, unsigned);
 508 extern int convgcipher(PyObject *, void *);
 509
 510 typedef struct gchash_pyobj {
 511   PyHeapTypeObject ty;
 512   gchash *ch;
 513 } gchash_pyobj;
 514
 515 extern PyTypeObject *gchash_pytype;
 516 #define GCHASH_PYCHECK(o) PyObject_TypeCheck((o), gchash_pytype)
 517 #define GCHASH_CH(o) (((gchash_pyobj *)(o))->ch)
 518 #define GCHASH_F(o) (((gchash_pyobj *)(o))->f)
 519 extern PyObject *gchash_pywrap(gchash *);
 520 extern int convgchash(PyObject *, void *);
 521
 522 typedef struct ghash_pyobj {
 523   PyObject_HEAD
 524   unsigned f;
 525   ghash *h;
 526 } ghash_pyobj;
 527
 528 extern PyTypeObject *ghash_pytype, *gmhash_pytype;
 529 extern PyObject *sha_pyobj, *has160_pyobj;
 530 #define GHASH_PYCHECK(o) PyObject_TypeCheck((o), ghash_pytype)
 531 #define GHASH_H(o) (((ghash_pyobj *)(o))->h)
 532 #define GHASH_F(o) (((ghash_pyobj *)(o))->f)
 533 extern PyObject *ghash_pywrap(PyObject *, ghash *, unsigned);
 534 extern int convghash(PyObject *, void *);
 535 extern int convgmhash(PyObject *, void *);
 536
 537 typedef struct gcmac_pyobj {
 538   PyHeapTypeObject ty;
 539   gcmac *cm;
 540 } gcmac_pyobj;
 541
 542 extern PyTypeObject *gcmac_pytype;
 543 #define GCMAC_PYCHECK(o) PyObject_TypeCheck((o), gcmac_pytype)
 544 #define GCMAC_CM(o) (((gcmac_pyobj *)(o))->cm)
 545 #define GCMAC_F(o) (((gcmac_pyobj *)(o))->f)
 546 extern PyObject *gcmac_pywrap(gcmac *);
 547 extern int convgcmac(PyObject *, void *);
 548
 549 typedef struct gmac_pyobj {
 550   PyHeapTypeObject ty;
 551   unsigned f;
 552   gmac *m;
 553 } gmac_pyobj;
 554
 555 extern PyTypeObject *gmac_pytype;
 556 #define GMAC_PYCHECK(o) PyObject_TypeCheck((o), gmac_pytype)
 557 #define GMAC_M(o) (((gmac_pyobj *)(o))->m)
 558 #define GMAC_F(o) (((gmac_pyobj *)(o))->f)
 559 extern PyObject *gmac_pywrap(PyObject *, gmac *, unsigned);
 560 extern int convgmac(PyObject *, void *);
 561
 562 /*----- Key generation ----------------------------------------------------*/
 563
 564 typedef struct pfilt_pyobj {
 565   PyObject_HEAD
 566   pfilt f;
 567   int st;
 568 } pfilt_pyobj;
 569
 570 extern PyTypeObject *pfilt_pytype;
 571 #define PFILT_PYCHECK(o) PyObject_TypeCheck(o, pfilt_pytype)
 572 #define PFILT_F(o) (&((pfilt_pyobj *)(o))->f)
 573 #define PFILT_ST(o) (((pfilt_pyobj *)(o))->st)
 574
 575 typedef struct { pgen_proc *proc; void *ctx; } pgev;
 576 #define PGEV_HEAD PyObject_HEAD pgev pg;
 577
 578 typedef struct pgev_pyobj {
 579   PGEV_HEAD
 580 } pgev_pyobj;
 581
 582 extern PyTypeObject *pgev_pytype;
 583 #define PGEV_PYCHECK(o) PyObject_TypeCheck(o, pgev_pytype)
 584 #define PGEV_PG(o) (&((pgev_pyobj *)(o))->pg)
 585
 586 extern int convpgev(PyObject *, void *);
 587 extern void droppgev(pgev *);
 588 extern void pgenerr(void);
 589
 590 /*----- That's all, folks -------------------------------------------------*/
 591
 592 #ifdef __cplusplus
 593   }
 594 #endif
 595
 596 #endif