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 #include <catacomb/sha3.h>
  74
  75 #include <catacomb/mp.h>
  76 #include <catacomb/mpint.h>
  77 #include <catacomb/mpmul.h>
  78 #include <catacomb/mpcrt.h>
  79 #include <catacomb/mpmont.h>
  80 #include <catacomb/mpbarrett.h>
  81 #include <catacomb/mpreduce.h>
  82 #include <catacomb/mp-fibonacci.h>
  83
  84 #include <catacomb/pgen.h>
  85 #include <catacomb/pfilt.h>
  86 #include <catacomb/strongprime.h>
  87 #include <catacomb/limlee.h>
  88 #include <catacomb/dh.h>
  89 #include <catacomb/ptab.h>
  90 #include <catacomb/bintab.h>
  91 #include <catacomb/dsa.h>
  92 #include <catacomb/x25519.h>
  93 #include <catacomb/x448.h>
  94 #include <catacomb/ed25519.h>
  95 #include <catacomb/ed448.h>
  96
  97 #include <catacomb/gf.h>
  98 #include <catacomb/gfreduce.h>
  99 #include <catacomb/gfn.h>
 100
 101 #include <catacomb/field.h>
 102 #include <catacomb/field-guts.h>
 103
 104 #include <catacomb/ec.h>
 105 #include <catacomb/ec-raw.h>
 106 #include <catacomb/ectab.h>
 107
 108 #include <catacomb/group.h>
 109 #include <catacomb/group-guts.h>
 110
 111 #include <catacomb/gdsa.h>
 112 #include <catacomb/gkcdsa.h>
 113 #include <catacomb/rsa.h>
 114
 115 #include <catacomb/key.h>
 116 #include <catacomb/passphrase.h>
 117 #include <catacomb/pixie.h>
 118
 119 #include <catacomb/share.h>
 120 #include <catacomb/gfshare.h>
 121
 122 /*----- Utility macros ----------------------------------------------------*/
 123
 124 #define RETURN_OBJ(obj) do { Py_INCREF(obj); return (obj); } while (0)
 125 #define RETURN_NONE RETURN_OBJ(Py_None)
 126 #define RETURN_NOTIMPL RETURN_OBJ(Py_NotImplemented)
 127 #define RETURN_TRUE RETURN_OBJ(Py_True)
 128 #define RETURN_FALSE RETURN_OBJ(Py_False)
 129 #define RETURN_ME RETURN_OBJ(me)
 130
 131 #define EXCERR(exc, str) do {                                           \
 132   PyErr_SetString(exc, str);                                            \
 133   goto end;                                                             \
 134 } while (0)
 135 #define VALERR(str) EXCERR(PyExc_ValueError, str)
 136 #define OVFERR(str) EXCERR(PyExc_OverflowError, str)
 137 #define TYERR(str) EXCERR(PyExc_TypeError, str)
 138 #define ZDIVERR(str) EXCERR(PyExc_ZeroDivisionError, str)
 139 #define SYSERR(str) EXCERR(PyExc_SystemError, str)
 140 #define NIERR(str) EXCERR(PyExc_NotImplementedError, str)
 141 #define INDEXERR(idx) do {                                              \
 142   PyErr_SetObject(PyExc_KeyError, idx);                                 \
 143   goto end;                                                             \
 144 } while (0)
 145 #define OSERR(name) do {                                                \
 146   PyErr_SetFromErrnoWithFilename(PyExc_OSError, name);                  \
 147   goto end;                                                             \
 148 } while (0)
 149 #define PGENERR(exc) do { pgenerr(exc); goto end; } while (0)
 150
 151 #define CONVFUNC(ty, cty, ext)                                          \
 152   int conv##ty(PyObject *o, void *p)                                    \
 153   {                                                                     \
 154     if (!PyObject_TypeCheck(o, ty##_pytype))                            \
 155       TYERR("wanted a " #ty);                                           \
 156     *(cty *)p = ext(o);                                                 \
 157     return (1);                                                         \
 158   end:                                                                  \
 159     return (0);                                                         \
 160   }
 161
 162 #if PY_VERSION_HEX < 0x02050000         /* Compatibility hack */
 163 #  define ht_name name
 164 #  define ht_type type
 165 #endif
 166
 167 #define root_pytype 0
 168 #define type_pytype &PyType_Type
 169 #define INITTYPE_META(ty, base, meta) do {                              \
 170   ty##_pytype_skel.tp_base = base##_pytype;                             \
 171   ty##_pytype = inittype(&ty##_pytype_skel, meta##_pytype);             \
 172 } while (0)
 173 #define INITTYPE(ty, base) INITTYPE_META(ty, base, type)
 174
 175 extern PyObject *home_module;
 176
 177 #define INSERT(name, ob) do {   \
 178   PyObject *_o = (PyObject *)(ob);                                      \
 179   Py_INCREF(_o);                                                        \
 180   PyModule_AddObject(mod, name, _o);                                    \
 181 } while (0)
 182
 183 #define INSEXC(name, var, base, meth)                                   \
 184   INSERT(name, var = mkexc(mod, base, name, meth))
 185
 186 #define METH(func, doc)                                                 \
 187   { #func, METHNAME(func), METH_VARARGS, doc },
 188 #define KWMETH(func, doc)                                               \
 189   { #func, (PyCFunction)METHNAME(func),                                 \
 190     METH_VARARGS | METH_KEYWORDS, doc },
 191
 192 #define GET(func, doc)                                                  \
 193   { #func, GETSETNAME(get, func), 0, doc },
 194 #define GETSET(func, doc)                                               \
 195   { #func, GETSETNAME(get, func), GETSETNAME(set, func), doc },
 196
 197 #define MEMBER(name, ty, f, doc)                                        \
 198   { #name, ty, offsetof(MEMBERSTRUCT, name), f, doc },
 199
 200 #define MODULES(_)                                                      \
 201   _(util)                                                               \
 202   _(bytestring) _(buffer)                                               \
 203   _(rand) _(algorithms) _(pubkey) _(pgen)                               \
 204   _(mp) _(field) _(ec) _(group)                                         \
 205   _(passphrase) _(share) _(key)
 206 #define DOMODINIT(m) m##_pyinit();
 207 #define DOMODINSERT(m) m##_pyinsert(mod);
 208 #define INIT_MODULES do { MODULES(DOMODINIT) } while (0)
 209 #define INSERT_MODULES do { MODULES(DOMODINSERT) } while (0)
 210
 211 #define DO(m)                                                           \
 212   extern void m##_pyinit(void);                                         \
 213   extern void m##_pyinsert(PyObject *);
 214 MODULES(DO)
 215 #undef DO
 216
 217 #define FREEOBJ(obj)                                                    \
 218   (((PyObject *)(obj))->ob_type->tp_free((PyObject *)(obj)))
 219
 220 #define GEN(func, base)                                                 \
 221   static PyObject *func(void)                                           \
 222   {                                                                     \
 223     PyObject *d = PyDict_New();                                         \
 224     PyObject *o;                                                        \
 225     int i;                                                              \
 226                                                                         \
 227     for (i = 0; g##base##tab[i]; i++) {                                 \
 228       o = gc##base##_pywrap((/*unconst*/ gc##base *)g##base##tab[i]);   \
 229       PyDict_SetItemString(d,                                           \
 230                            (/*unconst*/ char *)g##base##tab[i]->name,   \
 231                            o);                                          \
 232       Py_DECREF(o);                                                     \
 233     }                                                                   \
 234     return (d);                                                         \
 235   }
 236
 237 struct nameval { const char *name; unsigned f; unsigned long value; };
 238 #define CF_SIGNED 1u
 239 extern void setconstants(PyObject *, const struct nameval *);
 240
 241 extern PyObject *mexp_common(PyObject *, PyObject *, size_t,
 242                              PyObject *(*id)(PyObject *),
 243                              int (*fill)(void *, PyObject *,
 244                                          PyObject *, PyObject *),
 245                              PyObject *(*exp)(PyObject *, void *, int),
 246                              void (*drop)(void *));
 247
 248 extern int convulong(PyObject *, void *);
 249 #define DECL_CONVU_(n) extern int convu##n(PyObject *, void *);
 250 DOUINTSZ(DECL_CONVU_)
 251 extern int convmpw(PyObject *, void *);
 252 extern int convuint(PyObject *, void *);
 253 extern int convk64(PyObject *, void *);
 254 extern int convszt(PyObject *, void *);
 255 extern int convbool(PyObject *, void *);
 256 extern PyObject *abstract_pynew(PyTypeObject *, PyObject *, PyObject *);
 257 extern PyObject *getbool(int);
 258 extern PyObject *getulong(unsigned long);
 259 extern PyObject *getk64(kludge64);
 260 extern void *newtype(PyTypeObject *, const PyTypeObject *, const char *);
 261
 262 struct excinfo { PyObject *ty, *val, *tb; };
 263 #define EXCINFO_INIT { 0, 0, 0 }
 264
 265 extern PyObject *mkexc(PyObject *, PyObject *, const char *, PyMethodDef *);
 266 #define INIT_EXCINFO(exc) do {                                          \
 267   struct excinfo *_exc = (exc); _exc->ty = _exc->val = _exc->tb = 0;    \
 268 } while (0)
 269 #define RELEASE_EXCINFO(exc) do {                                       \
 270   struct excinfo *_exc = (exc);                                         \
 271   Py_XDECREF(_exc->ty);  _exc->ty  = 0;                                 \
 272   Py_XDECREF(_exc->val); _exc->val = 0;                                 \
 273   Py_XDECREF(_exc->tb);  _exc->tb  = 0;                                 \
 274 } while (0)
 275 #define STASH_EXCINFO(exc) do {                                         \
 276   struct excinfo *_exc = (exc);                                         \
 277   PyErr_Fetch(&_exc->ty, &_exc->val, &_exc->tb);                        \
 278   PyErr_NormalizeException(&_exc->ty, &_exc->val, &_exc->tb);           \
 279 } while (0)
 280 #define RESTORE_EXCINFO(exc) do {                                       \
 281   struct excinfo *_exc = (exc);                                         \
 282   PyErr_Restore(_exc->ty, _exc->val, _exc->tb);                         \
 283   _exc->ty = _exc->val = _exc->tb = 0;                                  \
 284 } while (0)
 285 extern void report_lost_exception(struct excinfo *, const char *, ...);
 286 extern void report_lost_exception_v(struct excinfo *, const char *, va_list);
 287 extern void stash_exception(struct excinfo *, const char *, ...);
 288 extern void restore_exception(struct excinfo *, const char *, ...);
 289
 290 extern void typeready(PyTypeObject *);
 291 extern PyTypeObject *inittype(PyTypeObject *, PyTypeObject *);
 292 extern void addmethods(const PyMethodDef *);
 293 extern PyMethodDef *donemethods(void);
 294
 295 /*----- Mapping methods ---------------------------------------------------*/
 296
 297 #define GMAP_METH(func, doc) { #func, gmapmeth_##func, METH_VARARGS, doc },
 298 #define GMAP_KWMETH(func, doc)                                          \
 299   { #func, (PyCFunction)gmapmeth_##func, METH_VARARGS|METH_KEYWORDS, doc },
 300 #define GMAP_METHDECL(func, doc)                                        \
 301   extern PyObject *gmapmeth_##func(PyObject *, PyObject *);
 302 #define GMAP_KWMETHDECL(func, doc)                                      \
 303   extern PyObject *gmapmeth_##func(PyObject *, PyObject *, PyObject *);
 304
 305 #define GMAP_DOROMETHODS(METH, KWMETH)                                  \
 306   METH  (has_key,       "D.has_key(KEY) -> BOOL")                       \
 307   METH  (keys,          "D.keys() -> LIST")                             \
 308   METH  (values,        "D.values() -> LIST")                           \
 309   METH  (items,         "D.items() -> LIST")                            \
 310   METH  (iterkeys,      "D.iterkeys() -> ITER")                         \
 311   METH  (itervalues,    "D.itervalues() -> ITER")                       \
 312   METH  (iteritems,     "D.iteritems() -> ITER")                        \
 313   KWMETH(get,           "D.get(KEY, [default = None]) -> VALUE")        \
 314
 315 #define GMAP_DOMETHODS(METH, KWMETH)                                    \
 316   GMAP_DOROMETHODS(METH, KWMETH)                                        \
 317   METH  (clear,         "D.clear()")                                    \
 318   KWMETH(setdefault,    "D.setdefault(K, [default = None]) -> VALUE")   \
 319   KWMETH(pop,           "D.pop(KEY, [default = <error>]) -> VALUE")     \
 320   METH  (popitem,       "D.popitem() -> (KEY, VALUE)")                  \
 321   METH  (update,        "D.update(MAP)")
 322
 323 GMAP_DOMETHODS(GMAP_METHDECL, GMAP_KWMETHDECL)
 324 #define GMAP_ROMETHODS GMAP_DOROMETHODS(GMAP_METH, GMAP_KWMETH)
 325 #define GMAP_METHODS GMAP_DOMETHODS(GMAP_METH, GMAP_KWMETH)
 326 extern Py_ssize_t gmap_pysize(PyObject *);
 327 extern PySequenceMethods gmap_pysequence;
 328 extern PyMethodDef gmap_pymethods[];
 329
 330 /*----- Bytestrings -------------------------------------------------------*/
 331
 332 PyTypeObject *bytestring_pyobj;
 333 PyObject *bytestring_pywrap(const void *, size_t);
 334 PyObject *bytestring_pywrapbuf(buf *);
 335
 336 /*----- Multiprecision arithmetic -----------------------------------------*/
 337
 338 typedef struct mp_pyobj {
 339   PyObject_HEAD
 340   mp *x;
 341 } mp_pyobj;
 342
 343 extern PyTypeObject *mp_pytype;
 344 extern PyTypeObject *gf_pytype;
 345 #define MP_X(o) (((mp_pyobj *)(o))->x)
 346 #define MP_PYCHECK(o) PyObject_TypeCheck((o), mp_pytype)
 347 #define GF_PYCHECK(o) PyObject_TypeCheck((o), gf_pytype)
 348
 349 extern mp *mp_frompylong(PyObject *);
 350 extern PyObject *mp_topylong(mp *);
 351 extern mp *tomp(PyObject *);
 352 extern mp *getmp(PyObject *);
 353 extern int convmp(PyObject *, void *);
 354 extern mp *getgf(PyObject *);
 355 extern int convgf(PyObject *, void *);
 356 extern PyObject *mp_pywrap(mp *);
 357 extern PyObject *gf_pywrap(mp *);
 358 extern long mphash(mp *);
 359 extern mp *mp_frompyobject(PyObject *, int);
 360 extern PyObject *mp_topystring(mp *, int,
 361                                const char *, const char *, const char *);
 362 extern int mp_tolong_checked(mp *, long *, int);
 363
 364 /*----- Abstract fields ---------------------------------------------------*/
 365
 366 typedef struct field_pyobj {
 367   PyHeapTypeObject ty;
 368   field *f;
 369 } field_pyobj;
 370
 371 extern PyTypeObject *fe_pytype;
 372 #define FE_PYCHECK(o) PyObject_TypeCheck((o), fe_pytype)
 373 #define FE_F(o) (((fe_pyobj *)(o))->f)
 374 #define FE_FOBJ(o) ((PyObject *)(o)->ob_type)
 375 #define FE_X(o) (((fe_pyobj *)(o))->x)
 376 extern PyObject *fe_pywrap(PyObject *, mp *);
 377
 378 typedef struct fe_pyobj {
 379   PyObject_HEAD
 380   field *f;
 381   mp *x;
 382 } fe_pyobj;
 383
 384 extern PyTypeObject *field_pytype;
 385 extern PyTypeObject *primefield_pytype;
 386 extern PyTypeObject *niceprimefield_pytype;
 387 extern PyTypeObject *binfield_pytype;
 388 extern PyTypeObject *binpolyfield_pytype;
 389 extern PyTypeObject *binnormfield_pytype;
 390 #define FIELD_PYCHECK(o) PyObject_TypeCheck((o), field_pytype)
 391 #define FIELD_F(o) (((field_pyobj *)(o))->f)
 392 extern PyObject *field_pywrap(field *);
 393 extern field *field_copy(field *);
 394
 395 /*----- Elliptic curves ---------------------------------------------------*/
 396
 397 typedef struct ecpt_pyobj {
 398   PyObject_HEAD
 399   ec_curve *c;
 400   ec p;
 401 } ecpt_pyobj;
 402
 403 extern PyTypeObject *ecpt_pytype, *ecptcurve_pytype;
 404 #define ECPT_PYCHECK(o) PyObject_TypeCheck((o), ecpt_pytype)
 405 #define ECPTCURVE_PYCHECK(o) PyObject_TypeCheck((o), ecptcurve_pytype)
 406 #define ECPT_C(o) (((ecpt_pyobj *)(o))->c)
 407 #define ECPT_COBJ(o) ((PyObject *)(o)->ob_type)
 408 #define ECPT_FOBJ(o) ECCURVE_FOBJ(ECPT_COBJ((o)))
 409 #define ECPT_P(o) (&((ecpt_pyobj *)(o))->p)
 410 extern PyObject *ecpt_pywrap(PyObject *, ec *);
 411 extern PyObject *ecpt_pywrapout(void *, ec *);
 412 extern int toecpt(ec_curve *, ec *, PyObject *);
 413 extern int getecpt(ec_curve *, ec *, PyObject *);
 414 extern void getecptout(ec *, PyObject *);
 415 extern int convecpt(PyObject *, void *);
 416
 417 typedef struct eccurve_pyobj {
 418   PyHeapTypeObject ty;
 419   ec_curve *c;
 420   PyObject *fobj;
 421 } eccurve_pyobj;
 422
 423 extern PyTypeObject *eccurve_pytype;
 424 extern PyTypeObject *ecprimecurve_pytype;
 425 extern PyTypeObject *ecprimeprojcurve_pytype;
 426 extern PyTypeObject *ecbincurve_pytype;
 427 extern PyTypeObject *ecbinprojcurve_pytype;
 428 #define ECCURVE_PYCHECK(o) PyObject_TypeCheck((o), eccurve_pytype)
 429 #define ECCURVE_C(o) (((eccurve_pyobj *)(o))->c)
 430 #define ECCURVE_FOBJ(o) (((eccurve_pyobj *)(o))->fobj)
 431 extern PyObject *eccurve_pywrap(PyObject *, ec_curve *);
 432 extern ec_curve *eccurve_copy(ec_curve *);
 433
 434 typedef struct ecinfo_pyobj {
 435   PyObject_HEAD
 436   ec_info ei;
 437   PyObject *cobj;
 438 } ecinfo_pyobj;
 439
 440 extern PyTypeObject *ecinfo_pytype;
 441 #define ECINFO_PYCHECK(o) PyObject_TypeCheck((o), ecinfo_pytype)
 442 #define ECINFO_EI(o) (&((ecinfo_pyobj *)(o))->ei)
 443 #define ECINFO_COBJ(o) (((ecinfo_pyobj *)(o))->cobj)
 444 extern void ecinfo_copy(ec_info *, const ec_info *);
 445 extern PyObject *ecinfo_pywrap(ec_info *);
 446
 447 /*----- Cyclic groups -----------------------------------------------------*/
 448
 449 typedef struct fginfo_pyobj {
 450   PyObject_HEAD
 451   gprime_param dp;
 452 } fginfo_pyobj;
 453
 454 PyTypeObject *fginfo_pytype, *dhinfo_pytype, *bindhinfo_pytype;
 455 #define FGINFO_DP(fg) (&((fginfo_pyobj *)(fg))->dp)
 456 PyObject *fginfo_pywrap(gprime_param *, PyTypeObject *);
 457
 458 typedef struct ge_pyobj {
 459   PyObject_HEAD
 460   ge *x;
 461   group *g;
 462 } ge_pyobj;
 463
 464 extern PyTypeObject *ge_pytype;
 465 #define GE_PYCHECK(o) PyObject_TypeCheck((o), ge_pytype)
 466 #define GE_X(o) (((ge_pyobj *)(o))->x)
 467 #define GE_G(o) (((ge_pyobj *)(o))->g)
 468 #define GE_GOBJ(o) ((PyObject *)(group_pyobj *)(o)->ob_type)
 469 extern PyObject *ge_pywrap(PyObject *, ge *);
 470
 471 typedef struct group_pyobj {
 472   PyHeapTypeObject ty;
 473   group *g;
 474 } group_pyobj;
 475
 476 extern PyTypeObject *group_pytype;
 477 extern PyTypeObject *primegroup_pytype, *bingroup_pytype, *ecgroup_pytype;
 478 #define GROUP_G(o) (((group_pyobj *)(o))->g)
 479 extern PyObject *group_pywrap(group *);
 480 extern group *group_copy(group *);
 481
 482 /*----- Random number generators ------------------------------------------*/
 483
 484 #define f_freeme 1u
 485
 486 typedef struct grand_pyobj {
 487   PyObject_HEAD
 488   unsigned f;
 489   grand *r;
 490 } grand_pyobj;
 491
 492 extern PyTypeObject *grand_pytype, *truerand_pytype;
 493 extern PyTypeObject *lcrand_pytype,* fibrand_pytype;
 494 extern PyTypeObject *dsarand_pytype, *bbs_pytype;
 495 extern PyObject *rand_pyobj;
 496 #define GRAND_PYCHECK(o) PyObject_TypeCheck((o), grand_pytype)
 497 #define GRAND_F(o) (((grand_pyobj *)(o))->f)
 498 #define GRAND_R(o) (((grand_pyobj *)(o))->r)
 499 extern PyObject *grand_pywrap(grand *, unsigned);
 500 extern int convgrand(PyObject *, void *);
 501
 502 /*----- Key sizes ---------------------------------------------------------*/
 503
 504 typedef struct keysz_pyobj {
 505   PyObject_HEAD
 506   int dfl;
 507 } keysz_pyobj;
 508
 509 typedef struct keyszrange_pyobj {
 510   PyObject_HEAD
 511   int dfl;
 512   int min, max, mod;
 513 } keyszrange_pyobj;
 514
 515 typedef struct keyszset_pyobj {
 516   PyObject_HEAD
 517   int dfl;
 518   PyObject *set;
 519 } keyszset_pyobj;
 520
 521 #define KEYSZ_PYCHECK(o) PyObject_TypeCheck((o), keysz_pytype)
 522 extern PyObject *keysz_pywrap(const octet *);
 523
 524 /*----- Symmetric cryptography --------------------------------------------*/
 525
 526 typedef struct gccipher_pyobj {
 527   PyHeapTypeObject ty;
 528   gccipher *cc;
 529 } gccipher_pyobj;
 530
 531 extern PyTypeObject *gccipher_pytype;
 532 #define GCCIPHER_PYCHECK(o) PyObject_TypeCheck((o), gccipher_pytype)
 533 #define GCCIPHER_CC(o) (((gccipher_pyobj *)(o))->cc)
 534 #define GCCIPHER_F(o) (((gccipher_pyobj *)(o))->f)
 535 extern PyObject *gccipher_pywrap(gccipher *);
 536 extern int convgccipher(PyObject *, void *);
 537 extern int convgcipher(PyObject *, void *);
 538
 539 typedef struct gcipher_pyobj {
 540   PyObject_HEAD
 541   unsigned f;
 542   gcipher *c;
 543 } gcipher_pyobj;
 544
 545 extern PyTypeObject *gcipher_pytype;
 546 #define GCIPHER_PYCHECK(o) PyObject_TypeCheck((o), gcipher_pytype)
 547 #define GCIPHER_C(o) (((gcipher_pyobj *)(o))->c)
 548 #define GCIPHER_F(o) (((gcipher_pyobj *)(o))->f)
 549 extern PyObject *gcipher_pywrap(PyObject *, gcipher *, unsigned);
 550 extern int convgcipher(PyObject *, void *);
 551
 552 typedef struct gchash_pyobj {
 553   PyHeapTypeObject ty;
 554   gchash *ch;
 555 } gchash_pyobj;
 556
 557 extern PyTypeObject *gchash_pytype;
 558 #define GCHASH_PYCHECK(o) PyObject_TypeCheck((o), gchash_pytype)
 559 #define GCHASH_CH(o) (((gchash_pyobj *)(o))->ch)
 560 #define GCHASH_F(o) (((gchash_pyobj *)(o))->f)
 561 extern PyObject *gchash_pywrap(gchash *);
 562 extern int convgchash(PyObject *, void *);
 563
 564 typedef struct ghash_pyobj {
 565   PyObject_HEAD
 566   unsigned f;
 567   ghash *h;
 568 } ghash_pyobj;
 569
 570 extern PyTypeObject *ghash_pytype, *gmhash_pytype;
 571 extern PyObject *sha_pyobj, *has160_pyobj;
 572 #define GHASH_PYCHECK(o) PyObject_TypeCheck((o), ghash_pytype)
 573 #define GHASH_H(o) (((ghash_pyobj *)(o))->h)
 574 #define GHASH_F(o) (((ghash_pyobj *)(o))->f)
 575 extern PyObject *ghash_pywrap(PyObject *, ghash *, unsigned);
 576 extern int convghash(PyObject *, void *);
 577 extern int convgmhash(PyObject *, void *);
 578
 579 typedef struct gcmac_pyobj {
 580   PyHeapTypeObject ty;
 581   gcmac *cm;
 582 } gcmac_pyobj;
 583
 584 extern PyTypeObject *gcmac_pytype;
 585 #define GCMAC_PYCHECK(o) PyObject_TypeCheck((o), gcmac_pytype)
 586 #define GCMAC_CM(o) (((gcmac_pyobj *)(o))->cm)
 587 #define GCMAC_F(o) (((gcmac_pyobj *)(o))->f)
 588 extern PyObject *gcmac_pywrap(gcmac *);
 589 extern int convgcmac(PyObject *, void *);
 590
 591 typedef struct gmac_pyobj {
 592   PyHeapTypeObject ty;
 593   unsigned f;
 594   gmac *m;
 595 } gmac_pyobj;
 596
 597 extern PyTypeObject *gmac_pytype;
 598 #define GMAC_PYCHECK(o) PyObject_TypeCheck((o), gmac_pytype)
 599 #define GMAC_M(o) (((gmac_pyobj *)(o))->m)
 600 #define GMAC_F(o) (((gmac_pyobj *)(o))->f)
 601 extern PyObject *gmac_pywrap(PyObject *, gmac *, unsigned);
 602 extern int convgmac(PyObject *, void *);
 603
 604 /*----- Key generation ----------------------------------------------------*/
 605
 606 typedef struct pfilt_pyobj {
 607   PyObject_HEAD
 608   pfilt f;
 609   int st;
 610 } pfilt_pyobj;
 611
 612 extern PyTypeObject *pfilt_pytype;
 613 #define PFILT_PYCHECK(o) PyObject_TypeCheck(o, pfilt_pytype)
 614 #define PFILT_F(o) (&((pfilt_pyobj *)(o))->f)
 615 #define PFILT_ST(o) (((pfilt_pyobj *)(o))->st)
 616
 617 typedef struct { pgen_proc *proc; void *ctx; } pgev;
 618 #define PGEV_HEAD PyObject_HEAD pgev pg;
 619
 620 typedef struct pgev_pyobj {
 621   PGEV_HEAD
 622 } pgev_pyobj;
 623
 624 extern PyTypeObject *pgev_pytype;
 625 #define PGEV_PYCHECK(o) PyObject_TypeCheck(o, pgev_pytype)
 626 #define PGEV_PG(o) (&((pgev_pyobj *)(o))->pg)
 627
 628 typedef struct pypgev {
 629   pgev ev;
 630   PyObject *obj;
 631   struct excinfo *exc;
 632 } pypgev;
 633
 634 extern int convpgev(PyObject *, void *);
 635 extern void droppgev(pypgev *);
 636 extern void pgenerr(struct excinfo *exc);
 637
 638 /*----- That's all, folks -------------------------------------------------*/
 639
 640 #ifdef __cplusplus
 641   }
 642 #endif
 643
 644 #endif