mdw@git.distorted.org.uk Git - pyke/blob - catacomb-python.h

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