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 #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 #include <catacomb/keccak1600.h>
  73
  74 #include <catacomb/mp.h>
  75 #include <catacomb/mpint.h>
  76 #include <catacomb/mpmul.h>
  77 #include <catacomb/mpcrt.h>
  78 #include <catacomb/mpmont.h>
  79 #include <catacomb/mpbarrett.h>
  80 #include <catacomb/mpreduce.h>
  81 #include <catacomb/mp-fibonacci.h>
  82
  83 #include <catacomb/pgen.h>
  84 #include <catacomb/pfilt.h>
  85 #include <catacomb/strongprime.h>
  86 #include <catacomb/limlee.h>
  87 #include <catacomb/dh.h>
  88 #include <catacomb/ptab.h>
  89 #include <catacomb/bintab.h>
  90 #include <catacomb/dsa.h>
  91 #include <catacomb/x25519.h>
  92 #include <catacomb/x448.h>
  93 #include <catacomb/ed25519.h>
  94
  95 #include <catacomb/gf.h>
  96 #include <catacomb/gfreduce.h>
  97 #include <catacomb/gfn.h>
  98
  99 #include <catacomb/field.h>
 100 #include <catacomb/field-guts.h>
 101
 102 #include <catacomb/ec.h>
 103 #include <catacomb/ec-raw.h>
 104 #include <catacomb/ectab.h>
 105
 106 #include <catacomb/group.h>
 107 #include <catacomb/group-guts.h>
 108
 109 #include <catacomb/gdsa.h>
 110 #include <catacomb/gkcdsa.h>
 111 #include <catacomb/rsa.h>
 112
 113 #include <catacomb/key.h>
 114 #include <catacomb/passphrase.h>
 115 #include <catacomb/pixie.h>
 116
 117 #include <catacomb/share.h>
 118 #include <catacomb/gfshare.h>
 119
 120 /*----- Utility macros ----------------------------------------------------*/
 121
 122 #define RETURN_OBJ(obj) do { Py_INCREF(obj); return (obj); } while (0)
 123 #define RETURN_NONE RETURN_OBJ(Py_None)
 124 #define RETURN_NOTIMPL RETURN_OBJ(Py_NotImplemented)
 125 #define RETURN_TRUE RETURN_OBJ(Py_True)
 126 #define RETURN_FALSE RETURN_OBJ(Py_False)
 127 #define RETURN_ME RETURN_OBJ(me)
 128
 129 #define EXCERR(exc, str) do {                                           \
 130   PyErr_SetString(exc, str);                                            \
 131   goto end;                                                             \
 132 } while (0)
 133 #define VALERR(str) EXCERR(PyExc_ValueError, str)
 134 #define TYERR(str) EXCERR(PyExc_TypeError, str)
 135 #define ZDIVERR(str) EXCERR(PyExc_ZeroDivisionError, str)
 136 #define SYSERR(str) EXCERR(PyExc_SystemError, str)
 137 #define NIERR(str) EXCERR(PyExc_NotImplementedError, str)
 138 #define INDEXERR(idx) do {                                              \
 139   PyErr_SetObject(PyExc_KeyError, idx);                                 \
 140   goto end;                                                             \
 141 } while (0)
 142 #define OSERR(name) do {                                                \
 143   PyErr_SetFromErrnoWithFilename(PyExc_OSError, name);                  \
 144   goto end;                                                             \
 145 } while (0)
 146 #define PGENERR do { pgenerr(); goto end; } while (0)
 147
 148 #define CONVFUNC(ty, cty, ext)                                          \
 149   int conv##ty(PyObject *o, void *p)                                    \
 150   {                                                                     \
 151     if (!PyObject_TypeCheck(o, ty##_pytype))                            \
 152       TYERR("wanted a " #ty);                                           \
 153     *(cty *)p = ext(o);                                                 \
 154     return (1);                                                         \
 155   end:                                                                  \
 156     return (0);                                                         \
 157   }
 158
 159 #if PY_VERSION_HEX < 0x02050000         /* Compatibility hack */
 160 #  define ht_name name
 161 #  define ht_type type
 162 #endif
 163
 164 #define root_pytype 0
 165 #define type_pytype &PyType_Type
 166 #define INITTYPE_META(ty, base, meta) do {                              \
 167   ty##_pytype_skel.tp_base = base##_pytype;                             \
 168   ty##_pytype = inittype(&ty##_pytype_skel, meta##_pytype);             \
 169 } while (0)
 170 #define INITTYPE(ty, base) INITTYPE_META(ty, base, type)
 171
 172 #define INSERT(name, ob) do {                                           \
 173   PyObject *_o = (PyObject *)(ob);                                      \
 174   Py_INCREF(_o);                                                        \
 175   PyModule_AddObject(mod, name, _o);                                    \
 176 } while (0)
 177
 178 #define INSEXC(name, var, base, meth)                                   \
 179   INSERT(name, var = mkexc(mod, base, name, meth))
 180
 181 #define METH(func, doc)                                                 \
 182   { #func, METHNAME(func), METH_VARARGS, doc },
 183 #define KWMETH(func, doc)                                               \
 184   { #func, (PyCFunction)METHNAME(func),                                 \
 185     METH_VARARGS | METH_KEYWORDS, doc },
 186
 187 #define GET(func, doc)                                                  \
 188   { #func, GETSETNAME(get, func), 0, doc },
 189 #define GETSET(func, doc)                                               \
 190   { #func, GETSETNAME(get, func), GETSETNAME(set, func), doc },
 191
 192 #define MEMBER(name, ty, f, doc)                                        \
 193   { #name, ty, offsetof(MEMBERSTRUCT, name), f, doc },
 194
 195 #define MODULES(_)                                                      \
 196   _(util)                                                               \
 197   _(bytestring) _(buffer)                                               \
 198   _(rand) _(algorithms) _(pubkey) _(pgen)                               \
 199   _(mp) _(field) _(ec) _(group)                                         \
 200   _(passphrase) _(share) _(key)
 201 #define DOMODINIT(m) m##_pyinit();
 202 #define DOMODINSERT(m) m##_pyinsert(mod);
 203 #define INIT_MODULES do { MODULES(DOMODINIT) } while (0)
 204 #define INSERT_MODULES do { MODULES(DOMODINSERT) } while (0)
 205
 206 #define DO(m)                                                           \
 207   extern void m##_pyinit(void);                                         \
 208   extern void m##_pyinsert(PyObject *);
 209 MODULES(DO)
 210 #undef DO
 211
 212 #define FREEOBJ(obj)                                                    \
 213   (((PyObject *)(obj))->ob_type->tp_free((PyObject *)(obj)))
 214
 215 #define GEN(func, base)                                                 \
 216   static PyObject *func(void)                                           \
 217   {                                                                     \
 218     PyObject *d = PyDict_New();                                         \
 219     PyObject *o;                                                        \
 220     int i;                                                              \
 221                                                                         \
 222     for (i = 0; g##base##tab[i]; i++) {                                 \
 223       o = gc##base##_pywrap((/*unconst*/ gc##base *)g##base##tab[i]);   \
 224       PyDict_SetItemString(d,                                           \
 225                            (/*unconst*/ char *)g##base##tab[i]->name,   \
 226                            o);                                          \
 227       Py_DECREF(o);                                                     \
 228     }                                                                   \
 229     return (d);                                                         \
 230   }
 231
 232 struct nameval { const char *name; unsigned long value; };
 233 extern void setconstants(PyObject *, const struct nameval *);
 234
 235 extern PyObject *mexp_common(PyObject *, PyObject *, size_t,
 236                              PyObject *(*id)(PyObject *),
 237                              int (*fill)(void *, PyObject *,
 238                                          PyObject *, PyObject *),
 239                              PyObject *(*exp)(PyObject *, void *, int),
 240                              void (*drop)(void *));
 241
 242 extern int convulong(PyObject *, void *);
 243 #define DECL_CONVU_(n) extern int convu##n(PyObject *, void *);
 244 DOUINTSZ(DECL_CONVU_)
 245 extern int convmpw(PyObject *, void *);
 246 extern int convuint(PyObject *, void *);
 247 extern int convk64(PyObject *, void *);
 248 extern int convszt(PyObject *, void *);
 249 extern int convbool(PyObject *, void *);
 250 extern PyObject *abstract_pynew(PyTypeObject *, PyObject *, PyObject *);
 251 extern PyObject *getbool(int);
 252 extern PyObject *getulong(unsigned long);
 253 extern PyObject *getk64(kludge64);
 254 extern void *newtype(PyTypeObject *, const PyTypeObject *, const char *);
 255
 256 extern PyObject *mkexc(PyObject *, PyObject *, const char *, PyMethodDef *);
 257 extern void typeready(PyTypeObject *);
 258 extern PyTypeObject *inittype(PyTypeObject *, PyTypeObject *);
 259 extern void addmethods(const PyMethodDef *);
 260 extern PyMethodDef *donemethods(void);
 261
 262 /*----- Mapping methods ---------------------------------------------------*/
 263
 264 #define GMAP_METH(func, doc) { #func, gmapmeth_##func, METH_VARARGS, doc },
 265 #define GMAP_KWMETH(func, doc)                                          \
 266   { #func, (PyCFunction)gmapmeth_##func, METH_VARARGS|METH_KEYWORDS, doc },
 267 #define GMAP_METHDECL(func, doc)                                        \
 268   extern PyObject *gmapmeth_##func(PyObject *, PyObject *);
 269 #define GMAP_KWMETHDECL(func, doc)                                      \
 270   extern PyObject *gmapmeth_##func(PyObject *, PyObject *, PyObject *);
 271
 272 #define GMAP_DOROMETHODS(METH, KWMETH)                                  \
 273   METH  (has_key,       "D.has_key(KEY) -> BOOL")                       \
 274   METH  (keys,          "D.keys() -> LIST")                             \
 275   METH  (values,        "D.values() -> LIST")                           \
 276   METH  (items,         "D.items() -> LIST")                            \
 277   METH  (iterkeys,      "D.iterkeys() -> ITER")                         \
 278   METH  (itervalues,    "D.itervalues() -> ITER")                       \
 279   METH  (iteritems,     "D.iteritems() -> ITER")                        \
 280   KWMETH(get,           "D.get(KEY, [default = None]) -> VALUE")        \
 281
 282 #define GMAP_DOMETHODS(METH, KWMETH)                                    \
 283   GMAP_DOROMETHODS(METH, KWMETH)                                        \
 284   METH  (clear,         "D.clear()")                                    \
 285   KWMETH(setdefault,    "D.setdefault(K, [default = None]) -> VALUE")   \
 286   KWMETH(pop,           "D.pop(KEY, [default = <error>]) -> VALUE")     \
 287   METH  (popitem,       "D.popitem() -> (KEY, VALUE)")                  \
 288   METH  (update,        "D.update(MAP)")
 289
 290 GMAP_DOMETHODS(GMAP_METHDECL, GMAP_KWMETHDECL)
 291 #define GMAP_ROMETHODS GMAP_DOROMETHODS(GMAP_METH, GMAP_KWMETH)
 292 #define GMAP_METHODS GMAP_DOMETHODS(GMAP_METH, GMAP_KWMETH)
 293 extern Py_ssize_t gmap_pysize(PyObject *);
 294 extern PySequenceMethods gmap_pysequence;
 295 extern PyMethodDef gmap_pymethods[];
 296
 297 /*----- Bytestrings -------------------------------------------------------*/
 298
 299 PyTypeObject *bytestring_pyobj;
 300 PyObject *bytestring_pywrap(const void *, size_t);
 301 PyObject *bytestring_pywrapbuf(buf *);
 302
 303 /*----- Multiprecision arithmetic -----------------------------------------*/
 304
 305 typedef struct mp_pyobj {
 306   PyObject_HEAD
 307   mp *x;
 308 } mp_pyobj;
 309
 310 extern PyTypeObject *mp_pytype;
 311 extern PyTypeObject *gf_pytype;
 312 #define MP_X(o) (((mp_pyobj *)(o))->x)
 313 #define MP_PYCHECK(o) PyObject_TypeCheck((o), mp_pytype)
 314 #define GF_PYCHECK(o) PyObject_TypeCheck((o), gf_pytype)
 315
 316 extern mp *mp_frompylong(PyObject *);
 317 extern PyObject *mp_topylong(mp *);
 318 extern mp *tomp(PyObject *);
 319 extern mp *getmp(PyObject *);
 320 extern int convmp(PyObject *, void *);
 321 extern mp *getgf(PyObject *);
 322 extern int convgf(PyObject *, void *);
 323 extern PyObject *mp_pywrap(mp *);
 324 extern PyObject *gf_pywrap(mp *);
 325 extern mp *mp_frompyobject(PyObject *, int);
 326 extern PyObject *mp_topystring(mp *, int,
 327                                const char *, const char *, const char *);
 328 extern int mp_tolong_checked(mp *, long *, int);
 329
 330 /*----- Abstract fields ---------------------------------------------------*/
 331
 332 typedef struct field_pyobj {
 333   PyHeapTypeObject ty;
 334   field *f;
 335 } field_pyobj;
 336
 337 extern PyTypeObject *fe_pytype;
 338 #define FE_PYCHECK(o) PyObject_TypeCheck((o), fe_pytype)
 339 #define FE_F(o) (((fe_pyobj *)(o))->f)
 340 #define FE_FOBJ(o) ((PyObject *)(o)->ob_type)
 341 #define FE_X(o) (((fe_pyobj *)(o))->x)
 342 extern PyObject *fe_pywrap(PyObject *, mp *);
 343 extern mp *getfe(field *, PyObject *);
 344
 345 typedef struct fe_pyobj {
 346   PyObject_HEAD
 347   field *f;
 348   mp *x;
 349 } fe_pyobj;
 350
 351 extern PyTypeObject *field_pytype;
 352 extern PyTypeObject *primefield_pytype;
 353 extern PyTypeObject *niceprimefield_pytype;
 354 extern PyTypeObject *binfield_pytype;
 355 extern PyTypeObject *binpolyfield_pytype;
 356 extern PyTypeObject *binnormfield_pytype;
 357 #define FIELD_PYCHECK(o) PyObject_TypeCheck((o), field_pytype)
 358 #define FIELD_F(o) (((field_pyobj *)(o))->f)
 359 extern PyObject *field_pywrap(field *);
 360 extern field *field_copy(field *);
 361
 362 /*----- Elliptic curves ---------------------------------------------------*/
 363
 364 typedef struct ecpt_pyobj {
 365   PyObject_HEAD
 366   ec_curve *c;
 367   ec p;
 368 } ecpt_pyobj;
 369
 370 extern PyTypeObject *ecpt_pytype, *ecptcurve_pytype;
 371 #define ECPT_PYCHECK(o) PyObject_TypeCheck((o), ecpt_pytype)
 372 #define ECPTCURVE_PYCHECK(o) PyObject_TypeCheck((o), ecptcurve_pytype)
 373 #define ECPT_C(o) (((ecpt_pyobj *)(o))->c)
 374 #define ECPT_COBJ(o) ((PyObject *)(o)->ob_type)
 375 #define ECPT_FOBJ(o) ECCURVE_FOBJ(ECPT_COBJ((o)))
 376 #define ECPT_P(o) (&((ecpt_pyobj *)(o))->p)
 377 extern PyObject *ecpt_pywrap(PyObject *, ec *);
 378 extern PyObject *ecpt_pywrapout(void *, ec *);
 379 extern int toecpt(ec_curve *, ec *, PyObject *);
 380 extern int getecpt(ec_curve *, ec *, PyObject *);
 381 extern void getecptout(ec *, PyObject *);
 382 extern int convecpt(PyObject *, void *);
 383
 384 typedef struct eccurve_pyobj {
 385   PyHeapTypeObject ty;
 386   ec_curve *c;
 387   PyObject *fobj;
 388 } eccurve_pyobj;
 389
 390 extern PyTypeObject *eccurve_pytype;
 391 extern PyTypeObject *ecprimecurve_pytype;
 392 extern PyTypeObject *ecprimeprojcurve_pytype;
 393 extern PyTypeObject *ecbincurve_pytype;
 394 extern PyTypeObject *ecbinprojcurve_pytype;
 395 #define ECCURVE_PYCHECK(o) PyObject_TypeCheck((o), eccurve_pytype)
 396 #define ECCURVE_C(o) (((eccurve_pyobj *)(o))->c)
 397 #define ECCURVE_FOBJ(o) (((eccurve_pyobj *)(o))->fobj)
 398 extern PyObject *eccurve_pywrap(PyObject *, ec_curve *);
 399 extern ec_curve *eccurve_copy(ec_curve *);
 400
 401 typedef struct ecinfo_pyobj {
 402   PyObject_HEAD
 403   ec_info ei;
 404   PyObject *cobj;
 405 } ecinfo_pyobj;
 406
 407 extern PyTypeObject *ecinfo_pytype;
 408 #define ECINFO_PYCHECK(o) PyObject_TypeCheck((o), ecinfo_pytype)
 409 #define ECINFO_EI(o) (&((ecinfo_pyobj *)(o))->ei)
 410 #define ECINFO_COBJ(o) (((ecinfo_pyobj *)(o))->cobj)
 411 extern void ecinfo_copy(ec_info *, const ec_info *);
 412 extern PyObject *ecinfo_pywrap(ec_info *);
 413
 414 /*----- Cyclic groups -----------------------------------------------------*/
 415
 416 typedef struct fginfo_pyobj {
 417   PyObject_HEAD
 418   gprime_param dp;
 419 } fginfo_pyobj;
 420
 421 PyTypeObject *fginfo_pytype, *dhinfo_pytype, *bindhinfo_pytype;
 422 #define FGINFO_DP(fg) (&((fginfo_pyobj *)(fg))->dp)
 423 PyObject *fginfo_pywrap(gprime_param *, PyTypeObject *);
 424
 425 typedef struct ge_pyobj {
 426   PyObject_HEAD
 427   ge *x;
 428   group *g;
 429 } ge_pyobj;
 430
 431 extern PyTypeObject *ge_pytype;
 432 #define GE_PYCHECK(o) PyObject_TypeCheck((o), ge_pytype)
 433 #define GE_X(o) (((ge_pyobj *)(o))->x)
 434 #define GE_G(o) (((ge_pyobj *)(o))->g)
 435 #define GE_GOBJ(o) ((PyObject *)(group_pyobj *)(o)->ob_type)
 436 extern PyObject *ge_pywrap(PyObject *, ge *);
 437
 438 typedef struct group_pyobj {
 439   PyHeapTypeObject ty;
 440   group *g;
 441 } group_pyobj;
 442
 443 extern PyTypeObject *group_pytype;
 444 extern PyTypeObject *primegroup_pytype, *bingroup_pytype, *ecgroup_pytype;
 445 #define GROUP_G(o) (((group_pyobj *)(o))->g)
 446 extern PyObject *group_pywrap(group *);
 447 extern group *group_copy(group *);
 448
 449 /*----- Random number generators ------------------------------------------*/
 450
 451 #define f_freeme 1u
 452
 453 typedef struct grand_pyobj {
 454   PyObject_HEAD
 455   unsigned f;
 456   grand *r;
 457 } grand_pyobj;
 458
 459 extern PyTypeObject *grand_pytype, *truerand_pytype;
 460 extern PyTypeObject *lcrand_pytype,* fibrand_pytype;
 461 extern PyTypeObject *dsarand_pytype, *bbs_pytype;
 462 extern PyObject *rand_pyobj;
 463 #define GRAND_PYCHECK(o) PyObject_TypeCheck((o), grand_pytype)
 464 #define GRAND_F(o) (((grand_pyobj *)(o))->f)
 465 #define GRAND_R(o) (((grand_pyobj *)(o))->r)
 466 extern PyObject *grand_pywrap(grand *, unsigned);
 467 extern int convgrand(PyObject *, void *);
 468
 469 /*----- Key sizes ---------------------------------------------------------*/
 470
 471 typedef struct keysz_pyobj {
 472   PyObject_HEAD
 473   int dfl;
 474 } keysz_pyobj;
 475
 476 typedef struct keyszrange_pyobj {
 477   PyObject_HEAD
 478   int dfl;
 479   int min, max, mod;
 480 } keyszrange_pyobj;
 481
 482 typedef struct keyszset_pyobj {
 483   PyObject_HEAD
 484   int dfl;
 485   PyObject *set;
 486 } keyszset_pyobj;
 487
 488 #define KEYSZ_PYCHECK(o) PyObject_TypeCheck((o), keysz_pytype)
 489 extern PyObject *keysz_pywrap(const octet *);
 490
 491 /*----- Symmetric cryptography --------------------------------------------*/
 492
 493 typedef struct gccipher_pyobj {
 494   PyHeapTypeObject ty;
 495   gccipher *cc;
 496 } gccipher_pyobj;
 497
 498 extern PyTypeObject *gccipher_pytype;
 499 #define GCCIPHER_PYCHECK(o) PyObject_TypeCheck((o), gccipher_pytype)
 500 #define GCCIPHER_CC(o) (((gccipher_pyobj *)(o))->cc)
 501 #define GCCIPHER_F(o) (((gccipher_pyobj *)(o))->f)
 502 extern PyObject *gccipher_pywrap(gccipher *);
 503 extern int convgccipher(PyObject *, void *);
 504 extern int convgcipher(PyObject *, void *);
 505
 506 typedef struct gcipher_pyobj {
 507   PyObject_HEAD
 508   unsigned f;
 509   gcipher *c;
 510 } gcipher_pyobj;
 511
 512 extern PyTypeObject *gcipher_pytype;
 513 #define GCIPHER_PYCHECK(o) PyObject_TypeCheck((o), gcipher_pytype)
 514 #define GCIPHER_C(o) (((gcipher_pyobj *)(o))->c)
 515 #define GCIPHER_F(o) (((gcipher_pyobj *)(o))->f)
 516 extern PyObject *gcipher_pywrap(PyObject *, gcipher *, unsigned);
 517 extern int convgcipher(PyObject *, void *);
 518
 519 typedef struct gchash_pyobj {
 520   PyHeapTypeObject ty;
 521   gchash *ch;
 522 } gchash_pyobj;
 523
 524 extern PyTypeObject *gchash_pytype;
 525 #define GCHASH_PYCHECK(o) PyObject_TypeCheck((o), gchash_pytype)
 526 #define GCHASH_CH(o) (((gchash_pyobj *)(o))->ch)
 527 #define GCHASH_F(o) (((gchash_pyobj *)(o))->f)
 528 extern PyObject *gchash_pywrap(gchash *);
 529 extern int convgchash(PyObject *, void *);
 530
 531 typedef struct ghash_pyobj {
 532   PyObject_HEAD
 533   unsigned f;
 534   ghash *h;
 535 } ghash_pyobj;
 536
 537 extern PyTypeObject *ghash_pytype, *gmhash_pytype;
 538 extern PyObject *sha_pyobj, *has160_pyobj;
 539 #define GHASH_PYCHECK(o) PyObject_TypeCheck((o), ghash_pytype)
 540 #define GHASH_H(o) (((ghash_pyobj *)(o))->h)
 541 #define GHASH_F(o) (((ghash_pyobj *)(o))->f)
 542 extern PyObject *ghash_pywrap(PyObject *, ghash *, unsigned);
 543 extern int convghash(PyObject *, void *);
 544 extern int convgmhash(PyObject *, void *);
 545
 546 typedef struct gcmac_pyobj {
 547   PyHeapTypeObject ty;
 548   gcmac *cm;
 549 } gcmac_pyobj;
 550
 551 extern PyTypeObject *gcmac_pytype;
 552 #define GCMAC_PYCHECK(o) PyObject_TypeCheck((o), gcmac_pytype)
 553 #define GCMAC_CM(o) (((gcmac_pyobj *)(o))->cm)
 554 #define GCMAC_F(o) (((gcmac_pyobj *)(o))->f)
 555 extern PyObject *gcmac_pywrap(gcmac *);
 556 extern int convgcmac(PyObject *, void *);
 557
 558 typedef struct gmac_pyobj {
 559   PyHeapTypeObject ty;
 560   unsigned f;
 561   gmac *m;
 562 } gmac_pyobj;
 563
 564 extern PyTypeObject *gmac_pytype;
 565 #define GMAC_PYCHECK(o) PyObject_TypeCheck((o), gmac_pytype)
 566 #define GMAC_M(o) (((gmac_pyobj *)(o))->m)
 567 #define GMAC_F(o) (((gmac_pyobj *)(o))->f)
 568 extern PyObject *gmac_pywrap(PyObject *, gmac *, unsigned);
 569 extern int convgmac(PyObject *, void *);
 570
 571 /*----- Key generation ----------------------------------------------------*/
 572
 573 typedef struct pfilt_pyobj {
 574   PyObject_HEAD
 575   pfilt f;
 576   int st;
 577 } pfilt_pyobj;
 578
 579 extern PyTypeObject *pfilt_pytype;
 580 #define PFILT_PYCHECK(o) PyObject_TypeCheck(o, pfilt_pytype)
 581 #define PFILT_F(o) (&((pfilt_pyobj *)(o))->f)
 582 #define PFILT_ST(o) (((pfilt_pyobj *)(o))->st)
 583
 584 typedef struct { pgen_proc *proc; void *ctx; } pgev;
 585 #define PGEV_HEAD PyObject_HEAD pgev pg;
 586
 587 typedef struct pgev_pyobj {
 588   PGEV_HEAD
 589 } pgev_pyobj;
 590
 591 extern PyTypeObject *pgev_pytype;
 592 #define PGEV_PYCHECK(o) PyObject_TypeCheck(o, pgev_pytype)
 593 #define PGEV_PG(o) (&((pgev_pyobj *)(o))->pg)
 594
 595 extern int convpgev(PyObject *, void *);
 596 extern void droppgev(pgev *);
 597 extern void pgenerr(void);
 598
 599 /*----- That's all, folks -------------------------------------------------*/
 600
 601 #ifdef __cplusplus
 602   }
 603 #endif
 604
 605 #endif