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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 #include <catacomb/x448.h>
  92 #include <catacomb/ed25519.h>
  93
  94 #include <catacomb/gf.h>
  95 #include <catacomb/gfreduce.h>
  96 #include <catacomb/gfn.h>
  97
  98 #include <catacomb/field.h>
  99 #include <catacomb/field-guts.h>
 100
 101 #include <catacomb/ec.h>
 102 #include <catacomb/ec-raw.h>
 103 #include <catacomb/ectab.h>
 104
 105 #include <catacomb/group.h>
 106 #include <catacomb/group-guts.h>
 107
 108 #include <catacomb/gdsa.h>
 109 #include <catacomb/gkcdsa.h>
 110 #include <catacomb/rsa.h>
 111
 112 #include <catacomb/key.h>
 113 #include <catacomb/passphrase.h>
 114 #include <catacomb/pixie.h>
 115
 116 #include <catacomb/share.h>
 117 #include <catacomb/gfshare.h>
 118
 119 /*----- Utility macros ----------------------------------------------------*/
 120
 121 #define RETURN_OBJ(obj) do { Py_INCREF(obj); return (obj); } while (0)
 122 #define RETURN_NONE RETURN_OBJ(Py_None)
 123 #define RETURN_NOTIMPL RETURN_OBJ(Py_NotImplemented)
 124 #define RETURN_TRUE RETURN_OBJ(Py_True)
 125 #define RETURN_FALSE RETURN_OBJ(Py_False)
 126 #define RETURN_ME RETURN_OBJ(me)
 127
 128 #define EXCERR(exc, str) do {                                           \
 129   PyErr_SetString(exc, str);                                            \
 130   goto end;                                                             \
 131 } while (0)
 132 #define VALERR(str) EXCERR(PyExc_ValueError, str)
 133 #define TYERR(str) EXCERR(PyExc_TypeError, str)
 134 #define ZDIVERR(str) EXCERR(PyExc_ZeroDivisionError, str)
 135 #define SYSERR(str) EXCERR(PyExc_SystemError, str)
 136 #define NIERR(str) EXCERR(PyExc_NotImplementedError, str)
 137 #define INDEXERR(idx) do {                                              \
 138   PyErr_SetObject(PyExc_KeyError, idx);                                 \
 139   goto end;                                                             \
 140 } while (0)
 141 #define OSERR(name) do {                                                \
 142   PyErr_SetFromErrnoWithFilename(PyExc_OSError, name);                  \
 143   goto end;                                                             \
 144 } while (0)
 145 #define PGENERR do { pgenerr(); goto end; } while (0)
 146
 147 #define CONVFUNC(ty, cty, ext)                                          \
 148   int conv##ty(PyObject *o, void *p)                                    \
 149   {                                                                     \
 150     if (!PyObject_TypeCheck(o, ty##_pytype))                            \
 151       TYERR("wanted a " #ty);                                           \
 152     *(cty *)p = ext(o);                                                 \
 153     return (1);                                                         \
 154   end:                                                                  \
 155     return (0);                                                         \
 156   }
 157
 158 #if PY_VERSION_HEX < 0x02050000         /* Compatibility hack */
 159 #  define ht_name name
 160 #  define ht_type type
 161 #endif
 162
 163 #define root_pytype 0
 164 #define type_pytype &PyType_Type
 165 #define INITTYPE_META(ty, base, meta) do {                              \
 166   ty##_pytype_skel.tp_base = base##_pytype;                             \
 167   ty##_pytype = inittype(&ty##_pytype_skel, meta##_pytype);             \
 168 } while (0)
 169 #define INITTYPE(ty, base) INITTYPE_META(ty, base, type)
 170
 171 #define INSERT(name, ob) do {                                           \
 172   PyObject *_o = (PyObject *)(ob);                                      \
 173   Py_INCREF(_o);                                                        \
 174   PyModule_AddObject(mod, name, _o);                                    \
 175 } while (0)
 176
 177 #define INSEXC(name, var, base, meth)                                   \
 178   INSERT(name, var = mkexc(mod, base, name, meth))
 179
 180 #define METH(func, doc)                                                 \
 181   { #func, METHNAME(func), METH_VARARGS, doc },
 182 #define KWMETH(func, doc)                                               \
 183   { #func, (PyCFunction)METHNAME(func),                                 \
 184     METH_VARARGS | METH_KEYWORDS, doc },
 185
 186 #define GET(func, doc)                                                  \
 187   { #func, GETSETNAME(get, func), 0, doc },
 188 #define GETSET(func, doc)                                               \
 189   { #func, GETSETNAME(get, func), GETSETNAME(set, func), doc },
 190
 191 #define MEMBER(name, ty, f, doc)                                        \
 192   { #name, ty, offsetof(MEMBERSTRUCT, name), f, doc },
 193
 194 #define MODULES(_)                                                      \
 195   _(util)                                                               \
 196   _(bytestring) _(buffer)                                               \
 197   _(rand) _(algorithms) _(pubkey) _(pgen)                               \
 198   _(mp) _(field) _(ec) _(group)                                         \
 199   _(passphrase) _(share) _(key)
 200 #define DOMODINIT(m) m##_pyinit();
 201 #define DOMODINSERT(m) m##_pyinsert(mod);
 202 #define INIT_MODULES do { MODULES(DOMODINIT) } while (0)
 203 #define INSERT_MODULES do { MODULES(DOMODINSERT) } while (0)
 204
 205 #define DO(m)                                                           \
 206   extern void m##_pyinit(void);                                         \
 207   extern void m##_pyinsert(PyObject *);
 208 MODULES(DO)
 209 #undef DO
 210
 211 #define FREEOBJ(obj)                                                    \
 212   (((PyObject *)(obj))->ob_type->tp_free((PyObject *)(obj)))
 213
 214 #define GEN(func, base)                                                 \
 215   static PyObject *func(void)                                           \
 216   {                                                                     \
 217     PyObject *d = PyDict_New();                                         \
 218     PyObject *o;                                                        \
 219     int i;                                                              \
 220                                                                         \
 221     for (i = 0; g##base##tab[i]; i++) {                                 \
 222       o = gc##base##_pywrap((/*unconst*/ gc##base *)g##base##tab[i]);   \
 223       PyDict_SetItemString(d,                                           \
 224                            (/*unconst*/ char *)g##base##tab[i]->name,   \
 225                            o);                                          \
 226       Py_DECREF(o);                                                     \
 227     }                                                                   \
 228     return (d);                                                         \
 229   }
 230
 231 struct nameval { const char *name; unsigned long value; };
 232 extern void setconstants(PyObject *, const struct nameval *);
 233
 234 extern PyObject *mexp_common(PyObject *, PyObject *, size_t,
 235                              PyObject *(*id)(PyObject *),
 236                              int (*fill)(void *, PyObject *,
 237                                          PyObject *, PyObject *),
 238                              PyObject *(*exp)(PyObject *, void *, int),
 239                              void (*drop)(void *));
 240
 241 extern int convulong(PyObject *, void *);
 242 #define DECL_CONVU_(n) extern int convu##n(PyObject *, void *);
 243 DOUINTSZ(DECL_CONVU_)
 244 extern int convmpw(PyObject *, void *);
 245 extern int convuint(PyObject *, void *);
 246 extern int convk64(PyObject *, void *);
 247 extern int convszt(PyObject *, void *);
 248 extern int convbool(PyObject *, void *);
 249 extern PyObject *abstract_pynew(PyTypeObject *, PyObject *, PyObject *);
 250 extern PyObject *getbool(int);
 251 extern PyObject *getulong(unsigned long);
 252 extern PyObject *getk64(kludge64);
 253 extern void *newtype(PyTypeObject *, const PyTypeObject *, const char *);
 254
 255 extern PyObject *mkexc(PyObject *, PyObject *, const char *, PyMethodDef *);
 256 extern void typeready(PyTypeObject *);
 257 extern PyTypeObject *inittype(PyTypeObject *, PyTypeObject *);
 258 extern void addmethods(const PyMethodDef *);
 259 extern PyMethodDef *donemethods(void);
 260
 261 /*----- Mapping methods ---------------------------------------------------*/
 262
 263 #define GMAP_METH(func, doc) { #func, gmapmeth_##func, METH_VARARGS, doc },
 264 #define GMAP_KWMETH(func, doc)                                          \
 265   { #func, (PyCFunction)gmapmeth_##func, METH_VARARGS|METH_KEYWORDS, doc },
 266 #define GMAP_METHDECL(func, doc)                                        \
 267   extern PyObject *gmapmeth_##func(PyObject *, PyObject *);
 268 #define GMAP_KWMETHDECL(func, doc)                                      \
 269   extern PyObject *gmapmeth_##func(PyObject *, PyObject *, PyObject *);
 270
 271 #define GMAP_DOROMETHODS(METH, KWMETH)                                  \
 272   METH  (has_key,       "D.has_key(KEY) -> BOOL")                       \
 273   METH  (keys,          "D.keys() -> LIST")                             \
 274   METH  (values,        "D.values() -> LIST")                           \
 275   METH  (items,         "D.items() -> LIST")                            \
 276   METH  (iterkeys,      "D.iterkeys() -> ITER")                         \
 277   METH  (itervalues,    "D.itervalues() -> ITER")                       \
 278   METH  (iteritems,     "D.iteritems() -> ITER")                        \
 279   KWMETH(get,           "D.get(KEY, [default = None]) -> VALUE")        \
 280
 281 #define GMAP_DOMETHODS(METH, KWMETH)                                    \
 282   GMAP_DOROMETHODS(METH, KWMETH)                                        \
 283   METH  (clear,         "D.clear()")                                    \
 284   KWMETH(setdefault,    "D.setdefault(K, [default = None]) -> VALUE")   \
 285   KWMETH(pop,           "D.pop(KEY, [default = <error>]) -> VALUE")     \
 286   METH  (popitem,       "D.popitem() -> (KEY, VALUE)")                  \
 287   METH  (update,        "D.update(MAP)")
 288
 289 GMAP_DOMETHODS(GMAP_METHDECL, GMAP_KWMETHDECL)
 290 #define GMAP_ROMETHODS GMAP_DOROMETHODS(GMAP_METH, GMAP_KWMETH)
 291 #define GMAP_METHODS GMAP_DOMETHODS(GMAP_METH, GMAP_KWMETH)
 292 extern Py_ssize_t gmap_pysize(PyObject *);
 293 extern PySequenceMethods gmap_pysequence;
 294 extern PyMethodDef gmap_pymethods[];
 295
 296 /*----- Bytestrings -------------------------------------------------------*/
 297
 298 PyTypeObject *bytestring_pyobj;
 299 PyObject *bytestring_pywrap(const void *, size_t);
 300 PyObject *bytestring_pywrapbuf(buf *);
 301
 302 /*----- Multiprecision arithmetic -----------------------------------------*/
 303
 304 typedef struct mp_pyobj {
 305   PyObject_HEAD
 306   mp *x;
 307 } mp_pyobj;
 308
 309 extern PyTypeObject *mp_pytype;
 310 extern PyTypeObject *gf_pytype;
 311 #define MP_X(o) (((mp_pyobj *)(o))->x)
 312 #define MP_PYCHECK(o) PyObject_TypeCheck((o), mp_pytype)
 313 #define GF_PYCHECK(o) PyObject_TypeCheck((o), gf_pytype)
 314
 315 extern mp *mp_frompylong(PyObject *);
 316 extern PyObject *mp_topylong(mp *);
 317 extern mp *tomp(PyObject *);
 318 extern mp *getmp(PyObject *);
 319 extern int convmp(PyObject *, void *);
 320 extern mp *getgf(PyObject *);
 321 extern int convgf(PyObject *, void *);
 322 extern PyObject *mp_pywrap(mp *);
 323 extern PyObject *gf_pywrap(mp *);
 324 extern mp *mp_frompyobject(PyObject *, int);
 325 extern PyObject *mp_topystring(mp *, int,
 326                                const char *, const char *, const char *);
 327 extern int mp_tolong_checked(mp *, long *, int);
 328
 329 /*----- Abstract fields ---------------------------------------------------*/
 330
 331 typedef struct field_pyobj {
 332   PyHeapTypeObject ty;
 333   field *f;
 334 } field_pyobj;
 335
 336 extern PyTypeObject *fe_pytype;
 337 #define FE_PYCHECK(o) PyObject_TypeCheck((o), fe_pytype)
 338 #define FE_F(o) (((fe_pyobj *)(o))->f)
 339 #define FE_FOBJ(o) ((PyObject *)(o)->ob_type)
 340 #define FE_X(o) (((fe_pyobj *)(o))->x)
 341 extern PyObject *fe_pywrap(PyObject *, mp *);
 342 extern mp *getfe(field *, PyObject *);
 343
 344 typedef struct fe_pyobj {
 345   PyObject_HEAD
 346   field *f;
 347   mp *x;
 348 } fe_pyobj;
 349
 350 extern PyTypeObject *field_pytype;
 351 extern PyTypeObject *primefield_pytype;
 352 extern PyTypeObject *niceprimefield_pytype;
 353 extern PyTypeObject *binfield_pytype;
 354 extern PyTypeObject *binpolyfield_pytype;
 355 extern PyTypeObject *binnormfield_pytype;
 356 #define FIELD_PYCHECK(o) PyObject_TypeCheck((o), field_pytype)
 357 #define FIELD_F(o) (((field_pyobj *)(o))->f)
 358 extern PyObject *field_pywrap(field *);
 359 extern field *field_copy(field *);
 360
 361 /*----- Elliptic curves ---------------------------------------------------*/
 362
 363 typedef struct ecpt_pyobj {
 364   PyObject_HEAD
 365   ec_curve *c;
 366   ec p;
 367 } ecpt_pyobj;
 368
 369 extern PyTypeObject *ecpt_pytype, *ecptcurve_pytype;
 370 #define ECPT_PYCHECK(o) PyObject_TypeCheck((o), ecpt_pytype)
 371 #define ECPTCURVE_PYCHECK(o) PyObject_TypeCheck((o), ecptcurve_pytype)
 372 #define ECPT_C(o) (((ecpt_pyobj *)(o))->c)
 373 #define ECPT_COBJ(o) ((PyObject *)(o)->ob_type)
 374 #define ECPT_FOBJ(o) ECCURVE_FOBJ(ECPT_COBJ((o)))
 375 #define ECPT_P(o) (&((ecpt_pyobj *)(o))->p)
 376 extern PyObject *ecpt_pywrap(PyObject *, ec *);
 377 extern PyObject *ecpt_pywrapout(void *, ec *);
 378 extern int toecpt(ec_curve *, ec *, PyObject *);
 379 extern int getecpt(ec_curve *, ec *, PyObject *);
 380 extern void getecptout(ec *, PyObject *);
 381 extern int convecpt(PyObject *, void *);
 382
 383 typedef struct eccurve_pyobj {
 384   PyHeapTypeObject ty;
 385   ec_curve *c;
 386   PyObject *fobj;
 387 } eccurve_pyobj;
 388
 389 extern PyTypeObject *eccurve_pytype;
 390 extern PyTypeObject *ecprimecurve_pytype;
 391 extern PyTypeObject *ecprimeprojcurve_pytype;
 392 extern PyTypeObject *ecbincurve_pytype;
 393 extern PyTypeObject *ecbinprojcurve_pytype;
 394 #define ECCURVE_PYCHECK(o) PyObject_TypeCheck((o), eccurve_pytype)
 395 #define ECCURVE_C(o) (((eccurve_pyobj *)(o))->c)
 396 #define ECCURVE_FOBJ(o) (((eccurve_pyobj *)(o))->fobj)
 397 extern PyObject *eccurve_pywrap(PyObject *, ec_curve *);
 398 extern ec_curve *eccurve_copy(ec_curve *);
 399
 400 typedef struct ecinfo_pyobj {
 401   PyObject_HEAD
 402   ec_info ei;
 403   PyObject *cobj;
 404 } ecinfo_pyobj;
 405
 406 extern PyTypeObject *ecinfo_pytype;
 407 #define ECINFO_PYCHECK(o) PyObject_TypeCheck((o), ecinfo_pytype)
 408 #define ECINFO_EI(o) (&((ecinfo_pyobj *)(o))->ei)
 409 #define ECINFO_COBJ(o) (((ecinfo_pyobj *)(o))->cobj)
 410 extern void ecinfo_copy(ec_info *, const ec_info *);
 411 extern PyObject *ecinfo_pywrap(ec_info *);
 412
 413 /*----- Cyclic groups -----------------------------------------------------*/
 414
 415 typedef struct fginfo_pyobj {
 416   PyObject_HEAD
 417   gprime_param dp;
 418 } fginfo_pyobj;
 419
 420 PyTypeObject *fginfo_pytype, *dhinfo_pytype, *bindhinfo_pytype;
 421 #define FGINFO_DP(fg) (&((fginfo_pyobj *)(fg))->dp)
 422 PyObject *fginfo_pywrap(gprime_param *, PyTypeObject *);
 423
 424 typedef struct ge_pyobj {
 425   PyObject_HEAD
 426   ge *x;
 427   group *g;
 428 } ge_pyobj;
 429
 430 extern PyTypeObject *ge_pytype;
 431 #define GE_PYCHECK(o) PyObject_TypeCheck((o), ge_pytype)
 432 #define GE_X(o) (((ge_pyobj *)(o))->x)
 433 #define GE_G(o) (((ge_pyobj *)(o))->g)
 434 #define GE_GOBJ(o) ((PyObject *)(group_pyobj *)(o)->ob_type)
 435 extern PyObject *ge_pywrap(PyObject *, ge *);
 436
 437 typedef struct group_pyobj {
 438   PyHeapTypeObject ty;
 439   group *g;
 440 } group_pyobj;
 441
 442 extern PyTypeObject *group_pytype;
 443 extern PyTypeObject *primegroup_pytype, *bingroup_pytype, *ecgroup_pytype;
 444 #define GROUP_G(o) (((group_pyobj *)(o))->g)
 445 extern PyObject *group_pywrap(group *);
 446 extern group *group_copy(group *);
 447
 448 /*----- Random number generators ------------------------------------------*/
 449
 450 #define f_freeme 1u
 451
 452 typedef struct grand_pyobj {
 453   PyObject_HEAD
 454   unsigned f;
 455   grand *r;
 456 } grand_pyobj;
 457
 458 extern PyTypeObject *grand_pytype, *truerand_pytype;
 459 extern PyTypeObject *lcrand_pytype,* fibrand_pytype;
 460 extern PyTypeObject *dsarand_pytype, *bbs_pytype;
 461 extern PyObject *rand_pyobj;
 462 #define GRAND_PYCHECK(o) PyObject_TypeCheck((o), grand_pytype)
 463 #define GRAND_F(o) (((grand_pyobj *)(o))->f)
 464 #define GRAND_R(o) (((grand_pyobj *)(o))->r)
 465 extern PyObject *grand_pywrap(grand *, unsigned);
 466 extern int convgrand(PyObject *, void *);
 467
 468 /*----- Key sizes ---------------------------------------------------------*/
 469
 470 typedef struct keysz_pyobj {
 471   PyObject_HEAD
 472   int dfl;
 473 } keysz_pyobj;
 474
 475 typedef struct keyszrange_pyobj {
 476   PyObject_HEAD
 477   int dfl;
 478   int min, max, mod;
 479 } keyszrange_pyobj;
 480
 481 typedef struct keyszset_pyobj {
 482   PyObject_HEAD
 483   int dfl;
 484   PyObject *set;
 485 } keyszset_pyobj;
 486
 487 #define KEYSZ_PYCHECK(o) PyObject_TypeCheck((o), keysz_pytype)
 488 extern PyObject *keysz_pywrap(const octet *);
 489
 490 /*----- Symmetric cryptography --------------------------------------------*/
 491
 492 typedef struct gccipher_pyobj {
 493   PyHeapTypeObject ty;
 494   gccipher *cc;
 495 } gccipher_pyobj;
 496
 497 extern PyTypeObject *gccipher_pytype;
 498 #define GCCIPHER_PYCHECK(o) PyObject_TypeCheck((o), gccipher_pytype)
 499 #define GCCIPHER_CC(o) (((gccipher_pyobj *)(o))->cc)
 500 #define GCCIPHER_F(o) (((gccipher_pyobj *)(o))->f)
 501 extern PyObject *gccipher_pywrap(gccipher *);
 502 extern int convgccipher(PyObject *, void *);
 503 extern int convgcipher(PyObject *, void *);
 504
 505 typedef struct gcipher_pyobj {
 506   PyObject_HEAD
 507   unsigned f;
 508   gcipher *c;
 509 } gcipher_pyobj;
 510
 511 extern PyTypeObject *gcipher_pytype;
 512 #define GCIPHER_PYCHECK(o) PyObject_TypeCheck((o), gcipher_pytype)
 513 #define GCIPHER_C(o) (((gcipher_pyobj *)(o))->c)
 514 #define GCIPHER_F(o) (((gcipher_pyobj *)(o))->f)
 515 extern PyObject *gcipher_pywrap(PyObject *, gcipher *, unsigned);
 516 extern int convgcipher(PyObject *, void *);
 517
 518 typedef struct gchash_pyobj {
 519   PyHeapTypeObject ty;
 520   gchash *ch;
 521 } gchash_pyobj;
 522
 523 extern PyTypeObject *gchash_pytype;
 524 #define GCHASH_PYCHECK(o) PyObject_TypeCheck((o), gchash_pytype)
 525 #define GCHASH_CH(o) (((gchash_pyobj *)(o))->ch)
 526 #define GCHASH_F(o) (((gchash_pyobj *)(o))->f)
 527 extern PyObject *gchash_pywrap(gchash *);
 528 extern int convgchash(PyObject *, void *);
 529
 530 typedef struct ghash_pyobj {
 531   PyObject_HEAD
 532   unsigned f;
 533   ghash *h;
 534 } ghash_pyobj;
 535
 536 extern PyTypeObject *ghash_pytype, *gmhash_pytype;
 537 extern PyObject *sha_pyobj, *has160_pyobj;
 538 #define GHASH_PYCHECK(o) PyObject_TypeCheck((o), ghash_pytype)
 539 #define GHASH_H(o) (((ghash_pyobj *)(o))->h)
 540 #define GHASH_F(o) (((ghash_pyobj *)(o))->f)
 541 extern PyObject *ghash_pywrap(PyObject *, ghash *, unsigned);
 542 extern int convghash(PyObject *, void *);
 543 extern int convgmhash(PyObject *, void *);
 544
 545 typedef struct gcmac_pyobj {
 546   PyHeapTypeObject ty;
 547   gcmac *cm;
 548 } gcmac_pyobj;
 549
 550 extern PyTypeObject *gcmac_pytype;
 551 #define GCMAC_PYCHECK(o) PyObject_TypeCheck((o), gcmac_pytype)
 552 #define GCMAC_CM(o) (((gcmac_pyobj *)(o))->cm)
 553 #define GCMAC_F(o) (((gcmac_pyobj *)(o))->f)
 554 extern PyObject *gcmac_pywrap(gcmac *);
 555 extern int convgcmac(PyObject *, void *);
 556
 557 typedef struct gmac_pyobj {
 558   PyHeapTypeObject ty;
 559   unsigned f;
 560   gmac *m;
 561 } gmac_pyobj;
 562
 563 extern PyTypeObject *gmac_pytype;
 564 #define GMAC_PYCHECK(o) PyObject_TypeCheck((o), gmac_pytype)
 565 #define GMAC_M(o) (((gmac_pyobj *)(o))->m)
 566 #define GMAC_F(o) (((gmac_pyobj *)(o))->f)
 567 extern PyObject *gmac_pywrap(PyObject *, gmac *, unsigned);
 568 extern int convgmac(PyObject *, void *);
 569
 570 /*----- Key generation ----------------------------------------------------*/
 571
 572 typedef struct pfilt_pyobj {
 573   PyObject_HEAD
 574   pfilt f;
 575   int st;
 576 } pfilt_pyobj;
 577
 578 extern PyTypeObject *pfilt_pytype;
 579 #define PFILT_PYCHECK(o) PyObject_TypeCheck(o, pfilt_pytype)
 580 #define PFILT_F(o) (&((pfilt_pyobj *)(o))->f)
 581 #define PFILT_ST(o) (((pfilt_pyobj *)(o))->st)
 582
 583 typedef struct { pgen_proc *proc; void *ctx; } pgev;
 584 #define PGEV_HEAD PyObject_HEAD pgev pg;
 585
 586 typedef struct pgev_pyobj {
 587   PGEV_HEAD
 588 } pgev_pyobj;
 589
 590 extern PyTypeObject *pgev_pytype;
 591 #define PGEV_PYCHECK(o) PyObject_TypeCheck(o, pgev_pytype)
 592 #define PGEV_PG(o) (&((pgev_pyobj *)(o))->pg)
 593
 594 extern int convpgev(PyObject *, void *);
 595 extern void droppgev(pgev *);
 596 extern void pgenerr(void);
 597
 598 /*----- That's all, folks -------------------------------------------------*/
 599
 600 #ifdef __cplusplus
 601   }
 602 #endif
 603
 604 #endif