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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 #define PY_SSIZE_T_CLEAN
  37
  38 #include <Python.h>
  39 #include <longintrepr.h>
  40 #include <structmember.h>
  41
  42 #include <mLib/darray.h>
  43 #include <mLib/dstr.h>
  44 #include <mLib/macros.h>
  45 #include <mLib/quis.h>
  46 #include <mLib/unihash.h>
  47
  48 #include <catacomb/buf.h>
  49 #include <catacomb/ct.h>
  50
  51 #include <catacomb/grand.h>
  52 #include <catacomb/rand.h>
  53 #include <catacomb/noise.h>
  54 #include <catacomb/bbs.h>
  55 #include <catacomb/mprand.h>
  56 #include <catacomb/lcrand.h>
  57 #include <catacomb/fibrand.h>
  58 #include <catacomb/dsarand.h>
  59 #include <catacomb/sslprf.h>
  60 #include <catacomb/tlsprf.h>
  61 #include <catacomb/blkc.h>
  62
  63 #include <catacomb/gcipher.h>
  64 #include <catacomb/ghash.h>
  65 #include <catacomb/gmac.h>
  66 #include <catacomb/md5.h>
  67 #include <catacomb/md5-hmac.h>
  68 #include <catacomb/poly1305.h>
  69 #include <catacomb/sha.h>
  70 #include <catacomb/sha-mgf.h>
  71 #include <catacomb/sha-hmac.h>
  72
  73 #include <catacomb/mp.h>
  74 #include <catacomb/mpint.h>
  75 #include <catacomb/mpmul.h>
  76 #include <catacomb/mpcrt.h>
  77 #include <catacomb/mpmont.h>
  78 #include <catacomb/mpbarrett.h>
  79 #include <catacomb/mpreduce.h>
  80 #include <catacomb/mp-fibonacci.h>
  81
  82 #include <catacomb/pgen.h>
  83 #include <catacomb/pfilt.h>
  84 #include <catacomb/strongprime.h>
  85 #include <catacomb/limlee.h>
  86 #include <catacomb/dh.h>
  87 #include <catacomb/ptab.h>
  88 #include <catacomb/bintab.h>
  89 #include <catacomb/dsa.h>
  90 #include <catacomb/x25519.h>
  91
  92 #include <catacomb/gf.h>
  93 #include <catacomb/gfreduce.h>
  94 #include <catacomb/gfn.h>
  95
  96 #include <catacomb/field.h>
  97 #include <catacomb/field-guts.h>
  98
  99 #include <catacomb/ec.h>
 100 #include <catacomb/ec-raw.h>
 101 #include <catacomb/ectab.h>
 102
 103 #include <catacomb/group.h>
 104 #include <catacomb/group-guts.h>
 105
 106 #include <catacomb/gdsa.h>
 107 #include <catacomb/gkcdsa.h>
 108 #include <catacomb/rsa.h>
 109
 110 #include <catacomb/key.h>
 111 #include <catacomb/passphrase.h>
 112 #include <catacomb/pixie.h>
 113
 114 #include <catacomb/share.h>
 115 #include <catacomb/gfshare.h>
 116
 117 /*----- Utility macros ----------------------------------------------------*/
 118
 119 #define RETURN_OBJ(obj) do { Py_INCREF(obj); return (obj); } while (0)
 120 #define RETURN_NONE RETURN_OBJ(Py_None)
 121 #define RETURN_NOTIMPL RETURN_OBJ(Py_NotImplemented)
 122 #define RETURN_TRUE RETURN_OBJ(Py_True)
 123 #define RETURN_FALSE RETURN_OBJ(Py_False)
 124 #define RETURN_ME RETURN_OBJ(me)
 125
 126 #define EXCERR(exc, str) do {                                           \
 127   PyErr_SetString(exc, str);                                            \
 128   goto end;                                                             \
 129 } while (0)
 130 #define VALERR(str) EXCERR(PyExc_ValueError, str)
 131 #define TYERR(str) EXCERR(PyExc_TypeError, str)
 132 #define ZDIVERR(str) EXCERR(PyExc_ZeroDivisionError, str)
 133 #define SYSERR(str) EXCERR(PyExc_SystemError, str)
 134 #define NIERR(str) EXCERR(PyExc_NotImplementedError, str)
 135 #define INDEXERR(idx) do {                                              \
 136   PyErr_SetObject(PyExc_KeyError, idx);                                 \
 137   goto end;                                                             \
 138 } while (0)
 139 #define OSERR(name) do {                                                \
 140   PyErr_SetFromErrnoWithFilename(PyExc_OSError, name);                  \
 141   goto end;                                                             \
 142 } while (0)
 143 #define PGENERR do { pgenerr(); goto end; } while (0)
 144
 145 #define CONVFUNC(ty, cty, ext)                                          \
 146   int conv##ty(PyObject *o, void *p)                                    \
 147   {                                                                     \
 148     if (!PyObject_TypeCheck(o, ty##_pytype))                            \
 149       TYERR("wanted a " #ty);                                           \
 150     *(cty *)p = ext(o);                                                 \
 151     return (1);                                                         \
 152   end:                                                                  \
 153     return (0);                                                         \
 154   }
 155
 156 #if PY_VERSION_HEX < 0x02050000         /* Compatibility hack */
 157 #  define ht_name name
 158 #  define ht_type type
 159 #endif
 160
 161 #define root_pytype 0
 162 #define type_pytype &PyType_Type
 163 #define INITTYPE_META(ty, base, meta) do {                              \
 164   ty##_pytype_skel.tp_base = base##_pytype;                             \
 165   ty##_pytype = inittype(&ty##_pytype_skel, meta##_pytype);             \
 166 } while (0)
 167 #define INITTYPE(ty, base) INITTYPE_META(ty, base, type)
 168
 169 #define INSERT(name, ob) do {                                           \
 170   PyObject *_o = (PyObject *)(ob);                                      \
 171   Py_INCREF(_o);                                                        \
 172   PyModule_AddObject(mod, name, _o);                                    \
 173 } while (0)
 174
 175 #define INSEXC(name, var, base, meth)                                   \
 176   INSERT(name, var = mkexc(mod, base, name, meth))
 177
 178 #define METH(func, doc)                                                 \
 179   { #func, METHNAME(func), METH_VARARGS, doc },
 180 #define KWMETH(func, doc)                                               \
 181   { #func, (PyCFunction)METHNAME(func),                                 \
 182     METH_VARARGS | METH_KEYWORDS, doc },
 183
 184 #define GET(func, doc)                                                  \
 185   { #func, GETSETNAME(get, func), 0, doc },
 186 #define GETSET(func, doc)                                               \
 187   { #func, GETSETNAME(get, func), GETSETNAME(set, func), doc },
 188
 189 #define MEMBER(name, ty, f, doc)                                        \
 190   { #name, ty, offsetof(MEMBERSTRUCT, name), f, doc },
 191
 192 #define MODULES(_)                                                      \
 193   _(util)                                                               \
 194   _(bytestring) _(buffer)                                               \
 195   _(rand) _(algorithms) _(pubkey) _(pgen)                               \
 196   _(mp) _(field) _(ec) _(group)                                         \
 197   _(passphrase) _(share) _(key)
 198 #define DOMODINIT(m) m##_pyinit();
 199 #define DOMODINSERT(m) m##_pyinsert(mod);
 200 #define INIT_MODULES do { MODULES(DOMODINIT) } while (0)
 201 #define INSERT_MODULES do { MODULES(DOMODINSERT) } while (0)
 202
 203 #define DO(m)                                                           \
 204   extern void m##_pyinit(void);                                         \
 205   extern void m##_pyinsert(PyObject *);
 206 MODULES(DO)
 207 #undef DO
 208
 209 #define FREEOBJ(obj)                                                    \
 210   (((PyObject *)(obj))->ob_type->tp_free((PyObject *)(obj)))
 211
 212 #define GEN(func, base)                                                 \
 213   static PyObject *func(void)                                           \
 214   {                                                                     \
 215     PyObject *d = PyDict_New();                                         \
 216     PyObject *o;                                                        \
 217     int i;                                                              \
 218                                                                         \
 219     for (i = 0; g##base##tab[i]; i++) {                                 \
 220       o = gc##base##_pywrap((/*unconst*/ gc##base *)g##base##tab[i]);   \
 221       PyDict_SetItemString(d,                                           \
 222                            (/*unconst*/ char *)g##base##tab[i]->name,   \
 223                            o);                                          \
 224       Py_DECREF(o);                                                     \
 225     }                                                                   \
 226     return (d);                                                         \
 227   }
 228
 229 struct nameval { const char *name; unsigned long value; };
 230 extern void setconstants(PyObject *, const struct nameval *);
 231
 232 extern PyObject *mexp_common(PyObject *, PyObject *, size_t,
 233                              PyObject *(*id)(PyObject *),
 234                              int (*fill)(void *, PyObject *,
 235                                          PyObject *, PyObject *),
 236                              PyObject *(*exp)(PyObject *, void *, int),
 237                              void (*drop)(void *));
 238
 239 extern int convulong(PyObject *, void *);
 240 #define DECL_CONVU_(n) extern int convu##n(PyObject *, void *);
 241 DOUINTSZ(DECL_CONVU_)
 242 extern int convmpw(PyObject *, void *);
 243 extern int convuint(PyObject *, void *);
 244 extern int convk64(PyObject *, void *);
 245 extern int convszt(PyObject *, void *);
 246 extern int convbool(PyObject *, void *);
 247 extern PyObject *abstract_pynew(PyTypeObject *, PyObject *, PyObject *);
 248 extern PyObject *getbool(int);
 249 extern PyObject *getulong(unsigned long);
 250 extern PyObject *getk64(kludge64);
 251 extern void *newtype(PyTypeObject *, const PyTypeObject *, const char *);
 252
 253 extern PyObject *mkexc(PyObject *, PyObject *, const char *, PyMethodDef *);
 254 extern void typeready(PyTypeObject *);
 255 extern PyTypeObject *inittype(PyTypeObject *, PyTypeObject *);
 256 extern void addmethods(const PyMethodDef *);
 257 extern PyMethodDef *donemethods(void);
 258
 259 /*----- Mapping methods ---------------------------------------------------*/
 260
 261 #define GMAP_METH(func, doc) { #func, gmapmeth_##func, METH_VARARGS, doc },
 262 #define GMAP_KWMETH(func, doc)                                          \
 263   { #func, (PyCFunction)gmapmeth_##func, METH_VARARGS|METH_KEYWORDS, doc },
 264 #define GMAP_METHDECL(func, doc)                                        \
 265   extern PyObject *gmapmeth_##func(PyObject *, PyObject *);
 266 #define GMAP_KWMETHDECL(func, doc)                                      \
 267   extern PyObject *gmapmeth_##func(PyObject *, PyObject *, PyObject *);
 268
 269 #define GMAP_DOROMETHODS(METH, KWMETH)                                  \
 270   METH  (has_key,       "D.has_key(KEY) -> BOOL")                       \
 271   METH  (keys,          "D.keys() -> LIST")                             \
 272   METH  (values,        "D.values() -> LIST")                           \
 273   METH  (items,         "D.items() -> LIST")                            \
 274   METH  (iterkeys,      "D.iterkeys() -> ITER")                         \
 275   METH  (itervalues,    "D.itervalues() -> ITER")                       \
 276   METH  (iteritems,     "D.iteritems() -> ITER")                        \
 277   KWMETH(get,           "D.get(KEY, [default = None]) -> VALUE")        \
 278
 279 #define GMAP_DOMETHODS(METH, KWMETH)                                    \
 280   GMAP_DOROMETHODS(METH, KWMETH)                                        \
 281   METH  (clear,         "D.clear()")                                    \
 282   KWMETH(setdefault,    "D.setdefault(K, [default = None]) -> VALUE")   \
 283   KWMETH(pop,           "D.pop(KEY, [default = <error>]) -> VALUE")     \
 284   METH  (popitem,       "D.popitem() -> (KEY, VALUE)")                  \
 285   METH  (update,        "D.update(MAP)")
 286
 287 GMAP_DOMETHODS(GMAP_METHDECL, GMAP_KWMETHDECL)
 288 #define GMAP_ROMETHODS GMAP_DOROMETHODS(GMAP_METH, GMAP_KWMETH)
 289 #define GMAP_METHODS GMAP_DOMETHODS(GMAP_METH, GMAP_KWMETH)
 290 extern Py_ssize_t gmap_pysize(PyObject *);
 291 extern PySequenceMethods gmap_pysequence;
 292 extern PyMethodDef gmap_pymethods[];
 293
 294 /*----- Bytestrings -------------------------------------------------------*/
 295
 296 PyTypeObject *bytestring_pyobj;
 297 PyObject *bytestring_pywrap(const void *, size_t);
 298 PyObject *bytestring_pywrapbuf(buf *);
 299
 300 /*----- Multiprecision arithmetic -----------------------------------------*/
 301
 302 typedef struct mp_pyobj {
 303   PyObject_HEAD
 304   mp *x;
 305 } mp_pyobj;
 306
 307 extern PyTypeObject *mp_pytype;
 308 extern PyTypeObject *gf_pytype;
 309 #define MP_X(o) (((mp_pyobj *)(o))->x)
 310 #define MP_PYCHECK(o) PyObject_TypeCheck((o), mp_pytype)
 311 #define GF_PYCHECK(o) PyObject_TypeCheck((o), gf_pytype)
 312
 313 extern mp *mp_frompylong(PyObject *);
 314 extern PyObject *mp_topylong(mp *);
 315 extern mp *tomp(PyObject *);
 316 extern mp *getmp(PyObject *);
 317 extern int convmp(PyObject *, void *);
 318 extern mp *getgf(PyObject *);
 319 extern int convgf(PyObject *, void *);
 320 extern PyObject *mp_pywrap(mp *);
 321 extern PyObject *gf_pywrap(mp *);
 322 extern mp *mp_frompyobject(PyObject *, int);
 323 extern PyObject *mp_topystring(mp *, int,
 324                                const char *, const char *, const char *);
 325 extern int mp_tolong_checked(mp *, long *, int);
 326
 327 /*----- Abstract fields ---------------------------------------------------*/
 328
 329 typedef struct field_pyobj {
 330   PyHeapTypeObject ty;
 331   field *f;
 332 } field_pyobj;
 333
 334 extern PyTypeObject *fe_pytype;
 335 #define FE_PYCHECK(o) PyObject_TypeCheck((o), fe_pytype)
 336 #define FE_F(o) (((fe_pyobj *)(o))->f)
 337 #define FE_FOBJ(o) ((PyObject *)(o)->ob_type)
 338 #define FE_X(o) (((fe_pyobj *)(o))->x)
 339 extern PyObject *fe_pywrap(PyObject *, mp *);
 340 extern mp *getfe(field *, PyObject *);
 341
 342 typedef struct fe_pyobj {
 343   PyObject_HEAD
 344   field *f;
 345   mp *x;
 346 } fe_pyobj;
 347
 348 extern PyTypeObject *field_pytype;
 349 extern PyTypeObject *primefield_pytype;
 350 extern PyTypeObject *niceprimefield_pytype;
 351 extern PyTypeObject *binfield_pytype;
 352 extern PyTypeObject *binpolyfield_pytype;
 353 extern PyTypeObject *binnormfield_pytype;
 354 #define FIELD_PYCHECK(o) PyObject_TypeCheck((o), field_pytype)
 355 #define FIELD_F(o) (((field_pyobj *)(o))->f)
 356 extern PyObject *field_pywrap(field *);
 357 extern field *field_copy(field *);
 358
 359 /*----- Elliptic curves ---------------------------------------------------*/
 360
 361 typedef struct ecpt_pyobj {
 362   PyObject_HEAD
 363   ec_curve *c;
 364   ec p;
 365 } ecpt_pyobj;
 366
 367 extern PyTypeObject *ecpt_pytype, *ecptcurve_pytype;
 368 #define ECPT_PYCHECK(o) PyObject_TypeCheck((o), ecpt_pytype)
 369 #define ECPTCURVE_PYCHECK(o) PyObject_TypeCheck((o), ecptcurve_pytype)
 370 #define ECPT_C(o) (((ecpt_pyobj *)(o))->c)
 371 #define ECPT_COBJ(o) ((PyObject *)(o)->ob_type)
 372 #define ECPT_FOBJ(o) ECCURVE_FOBJ(ECPT_COBJ((o)))
 373 #define ECPT_P(o) (&((ecpt_pyobj *)(o))->p)
 374 extern PyObject *ecpt_pywrap(PyObject *, ec *);
 375 extern PyObject *ecpt_pywrapout(void *, ec *);
 376 extern int toecpt(ec_curve *, ec *, PyObject *);
 377 extern int getecpt(ec_curve *, ec *, PyObject *);
 378 extern void getecptout(ec *, PyObject *);
 379 extern int convecpt(PyObject *, void *);
 380
 381 typedef struct eccurve_pyobj {
 382   PyHeapTypeObject ty;
 383   ec_curve *c;
 384   PyObject *fobj;
 385 } eccurve_pyobj;
 386
 387 extern PyTypeObject *eccurve_pytype;
 388 extern PyTypeObject *ecprimecurve_pytype;
 389 extern PyTypeObject *ecprimeprojcurve_pytype;
 390 extern PyTypeObject *ecbincurve_pytype;
 391 extern PyTypeObject *ecbinprojcurve_pytype;
 392 #define ECCURVE_PYCHECK(o) PyObject_TypeCheck((o), eccurve_pytype)
 393 #define ECCURVE_C(o) (((eccurve_pyobj *)(o))->c)
 394 #define ECCURVE_FOBJ(o) (((eccurve_pyobj *)(o))->fobj)
 395 extern PyObject *eccurve_pywrap(PyObject *, ec_curve *);
 396 extern ec_curve *eccurve_copy(ec_curve *);
 397
 398 typedef struct ecinfo_pyobj {
 399   PyObject_HEAD
 400   ec_info ei;
 401   PyObject *cobj;
 402 } ecinfo_pyobj;
 403
 404 extern PyTypeObject *ecinfo_pytype;
 405 #define ECINFO_PYCHECK(o) PyObject_TypeCheck((o), ecinfo_pytype)
 406 #define ECINFO_EI(o) (&((ecinfo_pyobj *)(o))->ei)
 407 #define ECINFO_COBJ(o) (((ecinfo_pyobj *)(o))->cobj)
 408 extern void ecinfo_copy(ec_info *, const ec_info *);
 409 extern PyObject *ecinfo_pywrap(ec_info *);
 410
 411 /*----- Cyclic groups -----------------------------------------------------*/
 412
 413 typedef struct fginfo_pyobj {
 414   PyObject_HEAD
 415   gprime_param dp;
 416 } fginfo_pyobj;
 417
 418 PyTypeObject *fginfo_pytype, *dhinfo_pytype, *bindhinfo_pytype;
 419 #define FGINFO_DP(fg) (&((fginfo_pyobj *)(fg))->dp)
 420 PyObject *fginfo_pywrap(gprime_param *, PyTypeObject *);
 421
 422 typedef struct ge_pyobj {
 423   PyObject_HEAD
 424   ge *x;
 425   group *g;
 426 } ge_pyobj;
 427
 428 extern PyTypeObject *ge_pytype;
 429 #define GE_PYCHECK(o) PyObject_TypeCheck((o), ge_pytype)
 430 #define GE_X(o) (((ge_pyobj *)(o))->x)
 431 #define GE_G(o) (((ge_pyobj *)(o))->g)
 432 #define GE_GOBJ(o) ((PyObject *)(group_pyobj *)(o)->ob_type)
 433 extern PyObject *ge_pywrap(PyObject *, ge *);
 434
 435 typedef struct group_pyobj {
 436   PyHeapTypeObject ty;
 437   group *g;
 438 } group_pyobj;
 439
 440 extern PyTypeObject *group_pytype;
 441 extern PyTypeObject *primegroup_pytype, *bingroup_pytype, *ecgroup_pytype;
 442 #define GROUP_G(o) (((group_pyobj *)(o))->g)
 443 extern PyObject *group_pywrap(group *);
 444 extern group *group_copy(group *);
 445
 446 /*----- Random number generators ------------------------------------------*/
 447
 448 #define f_freeme 1u
 449
 450 typedef struct grand_pyobj {
 451   PyObject_HEAD
 452   unsigned f;
 453   grand *r;
 454 } grand_pyobj;
 455
 456 extern PyTypeObject *grand_pytype, *truerand_pytype;
 457 extern PyTypeObject *lcrand_pytype,* fibrand_pytype;
 458 extern PyTypeObject *dsarand_pytype, *bbs_pytype;
 459 extern PyObject *rand_pyobj;
 460 #define GRAND_PYCHECK(o) PyObject_TypeCheck((o), grand_pytype)
 461 #define GRAND_F(o) (((grand_pyobj *)(o))->f)
 462 #define GRAND_R(o) (((grand_pyobj *)(o))->r)
 463 extern PyObject *grand_pywrap(grand *, unsigned);
 464 extern int convgrand(PyObject *, void *);
 465
 466 /*----- Key sizes ---------------------------------------------------------*/
 467
 468 typedef struct keysz_pyobj {
 469   PyObject_HEAD
 470   int dfl;
 471 } keysz_pyobj;
 472
 473 typedef struct keyszrange_pyobj {
 474   PyObject_HEAD
 475   int dfl;
 476   int min, max, mod;
 477 } keyszrange_pyobj;
 478
 479 typedef struct keyszset_pyobj {
 480   PyObject_HEAD
 481   int dfl;
 482   PyObject *set;
 483 } keyszset_pyobj;
 484
 485 #define KEYSZ_PYCHECK(o) PyObject_TypeCheck((o), keysz_pytype)
 486 extern PyObject *keysz_pywrap(const octet *);
 487
 488 /*----- Symmetric cryptography --------------------------------------------*/
 489
 490 typedef struct gccipher_pyobj {
 491   PyHeapTypeObject ty;
 492   gccipher *cc;
 493 } gccipher_pyobj;
 494
 495 extern PyTypeObject *gccipher_pytype;
 496 #define GCCIPHER_PYCHECK(o) PyObject_TypeCheck((o), gccipher_pytype)
 497 #define GCCIPHER_CC(o) (((gccipher_pyobj *)(o))->cc)
 498 #define GCCIPHER_F(o) (((gccipher_pyobj *)(o))->f)
 499 extern PyObject *gccipher_pywrap(gccipher *);
 500 extern int convgccipher(PyObject *, void *);
 501 extern int convgcipher(PyObject *, void *);
 502
 503 typedef struct gcipher_pyobj {
 504   PyObject_HEAD
 505   unsigned f;
 506   gcipher *c;
 507 } gcipher_pyobj;
 508
 509 extern PyTypeObject *gcipher_pytype;
 510 #define GCIPHER_PYCHECK(o) PyObject_TypeCheck((o), gcipher_pytype)
 511 #define GCIPHER_C(o) (((gcipher_pyobj *)(o))->c)
 512 #define GCIPHER_F(o) (((gcipher_pyobj *)(o))->f)
 513 extern PyObject *gcipher_pywrap(PyObject *, gcipher *, unsigned);
 514 extern int convgcipher(PyObject *, void *);
 515
 516 typedef struct gchash_pyobj {
 517   PyHeapTypeObject ty;
 518   gchash *ch;
 519 } gchash_pyobj;
 520
 521 extern PyTypeObject *gchash_pytype;
 522 #define GCHASH_PYCHECK(o) PyObject_TypeCheck((o), gchash_pytype)
 523 #define GCHASH_CH(o) (((gchash_pyobj *)(o))->ch)
 524 #define GCHASH_F(o) (((gchash_pyobj *)(o))->f)
 525 extern PyObject *gchash_pywrap(gchash *);
 526 extern int convgchash(PyObject *, void *);
 527
 528 typedef struct ghash_pyobj {
 529   PyObject_HEAD
 530   unsigned f;
 531   ghash *h;
 532 } ghash_pyobj;
 533
 534 extern PyTypeObject *ghash_pytype, *gmhash_pytype;
 535 extern PyObject *sha_pyobj, *has160_pyobj;
 536 #define GHASH_PYCHECK(o) PyObject_TypeCheck((o), ghash_pytype)
 537 #define GHASH_H(o) (((ghash_pyobj *)(o))->h)
 538 #define GHASH_F(o) (((ghash_pyobj *)(o))->f)
 539 extern PyObject *ghash_pywrap(PyObject *, ghash *, unsigned);
 540 extern int convghash(PyObject *, void *);
 541 extern int convgmhash(PyObject *, void *);
 542
 543 typedef struct gcmac_pyobj {
 544   PyHeapTypeObject ty;
 545   gcmac *cm;
 546 } gcmac_pyobj;
 547
 548 extern PyTypeObject *gcmac_pytype;
 549 #define GCMAC_PYCHECK(o) PyObject_TypeCheck((o), gcmac_pytype)
 550 #define GCMAC_CM(o) (((gcmac_pyobj *)(o))->cm)
 551 #define GCMAC_F(o) (((gcmac_pyobj *)(o))->f)
 552 extern PyObject *gcmac_pywrap(gcmac *);
 553 extern int convgcmac(PyObject *, void *);
 554
 555 typedef struct gmac_pyobj {
 556   PyHeapTypeObject ty;
 557   unsigned f;
 558   gmac *m;
 559 } gmac_pyobj;
 560
 561 extern PyTypeObject *gmac_pytype;
 562 #define GMAC_PYCHECK(o) PyObject_TypeCheck((o), gmac_pytype)
 563 #define GMAC_M(o) (((gmac_pyobj *)(o))->m)
 564 #define GMAC_F(o) (((gmac_pyobj *)(o))->f)
 565 extern PyObject *gmac_pywrap(PyObject *, gmac *, unsigned);
 566 extern int convgmac(PyObject *, void *);
 567
 568 /*----- Key generation ----------------------------------------------------*/
 569
 570 typedef struct pfilt_pyobj {
 571   PyObject_HEAD
 572   pfilt f;
 573   int st;
 574 } pfilt_pyobj;
 575
 576 extern PyTypeObject *pfilt_pytype;
 577 #define PFILT_PYCHECK(o) PyObject_TypeCheck(o, pfilt_pytype)
 578 #define PFILT_F(o) (&((pfilt_pyobj *)(o))->f)
 579 #define PFILT_ST(o) (((pfilt_pyobj *)(o))->st)
 580
 581 typedef struct { pgen_proc *proc; void *ctx; } pgev;
 582 #define PGEV_HEAD PyObject_HEAD pgev pg;
 583
 584 typedef struct pgev_pyobj {
 585   PGEV_HEAD
 586 } pgev_pyobj;
 587
 588 extern PyTypeObject *pgev_pytype;
 589 #define PGEV_PYCHECK(o) PyObject_TypeCheck(o, pgev_pytype)
 590 #define PGEV_PG(o) (&((pgev_pyobj *)(o))->pg)
 591
 592 extern int convpgev(PyObject *, void *);
 593 extern void droppgev(pgev *);
 594 extern void pgenerr(void);
 595
 596 /*----- That's all, folks -------------------------------------------------*/
 597
 598 #ifdef __cplusplus
 599   }
 600 #endif
 601
 602 #endif