X-Git-Url: https://git.distorted.org.uk/~mdw/catacomb-python/blobdiff_plain/204416123385794c92b7767e7702c0d4fd387468..54fd7594ee5df9dbc9745d98adaa01a5ed43b6e4:/rand.c diff --git a/rand.c b/rand.c index 964a6a2..e72f450 100644 --- a/rand.c +++ b/rand.c @@ -33,10 +33,11 @@ PRIVATE_SYMBOLS; /*----- Main code ---------------------------------------------------------*/ -PyTypeObject *grand_pytype, *truerand_pytype; -PyTypeObject *lcrand_pytype, *fibrand_pytype; -PyTypeObject *dsarand_pytype, *bbs_pytype, *bbspriv_pytype; -PyTypeObject *sslprf_pytype, *tlsdx_pytype, *tlsprf_pytype; +PyTypeObject *grand_pytype; +static PyTypeObject *truerand_pytype; +static PyTypeObject *lcrand_pytype, *fibrand_pytype; +static PyTypeObject *dsarand_pytype, *bbs_pytype, *bbspriv_pytype; +static PyTypeObject *sslprf_pytype, *tlsdx_pytype, *tlsprf_pytype; PyObject *rand_pyobj; static PyObject *gccrands_dict; @@ -64,7 +65,8 @@ PyObject *grand_pywrap(grand *r, unsigned f) else if (STRCMP(r->ops->name, ==, "sslprf")) ty = sslprf_pytype; else if (STRCMP(r->ops->name, ==, "tlsdx")) ty = tlsdx_pytype; else if (STRCMP(r->ops->name, ==, "tlsprf")) ty = tlsprf_pytype; - else if ((ob = PyDict_GetItemString(gccrands_dict, r->ops->name)) != 0) + else if ((ob = PyMapping_GetItemString + (gccrands_dict, (/*unconst*/ char *)r->ops->name)) != 0) ty = (PyTypeObject *)ob; return (grand_dopywrap(ty, r, f)); } @@ -79,16 +81,14 @@ end: return (-1); } -static PyObject *grmeth_byte(PyObject *me, PyObject *arg) +static PyObject *grmeth_byte(PyObject *me) { - if (!PyArg_ParseTuple(arg, ":byte")) return (0); if (grand_check(me)) return (0); return (PyInt_FromLong(grand_byte(GRAND_R(me)))); } -static PyObject *grmeth_word(PyObject *me, PyObject *arg) +static PyObject *grmeth_word(PyObject *me) { - if (!PyArg_ParseTuple(arg, ":word")) return (0); if (grand_check(me)) return (0); return (getulong(grand_word(GRAND_R(me)))); } @@ -102,16 +102,14 @@ static PyObject *grmeth_range(PyObject *me, PyObject *arg) if (!PyArg_ParseTuple(arg, "O:range", &m)) return (0); if (grand_check(me)) return (0); if (PyInt_Check(m)) { - long mm = PyInt_AS_LONG(m); - if (mm <= 0) - goto notpos; - if (mm <= 0xffffffff) + long mm = PyInt_AsLong(m); + if (mm == -1 && PyErr_Occurred()) PyErr_Clear(); + else if (mm <= 0) goto notpos; + else if (mm <= 0xffffffff) return (PyInt_FromLong(grand_range(GRAND_R(me), mm))); } - if ((x = getmp(m)) == 0) - goto end; - if (!MP_POSP(x)) - goto notpos; + if ((x = getmp(m)) == 0) goto end; + if (!MP_POSP(x)) goto notpos; y = mprand_range(MP_NEW, x, GRAND_R(me), 0); MP_DROP(x); return (mp_pywrap(y)); @@ -146,7 +144,7 @@ static PyObject *grmeth_block(PyObject *me, PyObject *arg) if (!PyArg_ParseTuple(arg, "O&:block", convulong, &n)) goto end; if (grand_check(me)) return (0); rc = bytestring_pywrap(0, n); - grand_fill(GRAND_R(me), PyString_AS_STRING(rc), n); + grand_fill(GRAND_R(me), BIN_PTR(rc), n); end: return (rc); } @@ -186,13 +184,12 @@ end: static PyObject *grmeth_seedblock(PyObject *me, PyObject *arg) { - char *p; - Py_ssize_t n; + struct bin in; grand *r = GRAND_R(me); - if (!PyArg_ParseTuple(arg, "s#:seedblock", &p, &n) || + if (!PyArg_ParseTuple(arg, "O&:seedblock", convbin, &in) || grand_check(me) || checkop(r, GRAND_SEEDBLOCK, "seedblock")) goto end; - r->ops->misc(r, GRAND_SEEDBLOCK, p, (size_t)n); + r->ops->misc(r, GRAND_SEEDBLOCK, in.p, (size_t)in.sz); RETURN_ME; end: return (0); @@ -232,16 +229,17 @@ end: static PyObject *grmeth_mask(PyObject *me, PyObject *arg) { grand *r = GRAND_R(me); - char *p, *q; - Py_ssize_t sz; + struct bin in; + const octet *p; size_t n; + octet *q; PyObject *rc; - if (!PyArg_ParseTuple(arg, "s#:mask", &p, &sz)) return (0); + if (!PyArg_ParseTuple(arg, "O&:mask", convbin, &in)) return (0); if (grand_check(me)) return (0); - rc = bytestring_pywrap(0, sz); - q = PyString_AS_STRING(rc); - GR_FILL(r, q, sz); - while (sz--) *q++ ^= *p++; + rc = bytestring_pywrap(0, in.sz); + q = (octet *)BIN_PTR(rc); + GR_FILL(r, q, in.sz); + p = in.p; n = in.sz; while (n--) *q++ ^= *p++; return (rc); } @@ -253,12 +251,12 @@ static void grand_pydealloc(PyObject *me) } static PyObject *grget_name(PyObject *me, void *hunoz) - { return (grand_check(me) ? 0 : PyString_FromString(GRAND_R(me)->ops->name)); } + { return (grand_check(me) ? 0 : TEXT_FROMSTR(GRAND_R(me)->ops->name)); } static PyObject *grget_cryptop(PyObject *me, void *hunoz) { return (grand_check(me) ? 0 : getbool(GRAND_R(me)->ops->f & GRAND_CRYPTO)); } -static PyGetSetDef grand_pygetset[] = { +static const PyGetSetDef grand_pygetset[] = { #define GETSETNAME(op, name) gr##op##_##name GET (name, "R.name -> name of this kind of generator") GET (cryptop, "R.cryptop -> flag: cryptographically strong?") @@ -266,10 +264,10 @@ static PyGetSetDef grand_pygetset[] = { { 0 } }; -static PyMethodDef grand_pymethods[] = { +static const PyMethodDef grand_pymethods[] = { #define METHNAME(name) grmeth_##name - METH (byte, "R.byte() -> BYTE") - METH (word, "R.word() -> WORD") + NAMETH(byte, "R.byte() -> BYTE") + NAMETH(word, "R.word() -> WORD") METH (block, "R.block(N) -> STRING") KWMETH(mp, "R.mp(bits, [or = 0]) -> MP") METH (range, "R.range(MAX) -> INT") @@ -283,8 +281,8 @@ static PyMethodDef grand_pymethods[] = { { 0 } }; -static PyTypeObject grand_pytype_skel = { - PyObject_HEAD_INIT(0) 0, /* Header */ +static const PyTypeObject grand_pytype_skel = { + PyVarObject_HEAD_INIT(0, 0) /* Header */ "GRand", /* @tp_name@ */ sizeof(grand_pyobj), /* @tp_basicsize@ */ 0, /* @tp_itemsize@ */ @@ -308,7 +306,7 @@ static PyTypeObject grand_pytype_skel = { Py_TPFLAGS_BASETYPE, /* @tp_doc@ */ -"Generic random number source.", + "Generic random number source.", 0, /* @tp_traverse@ */ 0, /* @tp_clear@ */ @@ -316,9 +314,9 @@ static PyTypeObject grand_pytype_skel = { 0, /* @tp_weaklistoffset@ */ 0, /* @tp_iter@ */ 0, /* @tp_iternext@ */ - grand_pymethods, /* @tp_methods@ */ + PYMETHODS(grand), /* @tp_methods@ */ 0, /* @tp_members@ */ - grand_pygetset, /* @tp_getset@ */ + PYGETSET(grand), /* @tp_getset@ */ 0, /* @tp_base@ */ 0, /* @tp_dict@ */ 0, /* @tp_descr_get@ */ @@ -340,8 +338,8 @@ static PyObject *lcrand_pynew(PyTypeObject *me, PyObject *arg, PyObject *kw) return (grand_dopywrap(lcrand_pytype, lcrand_create(n), f_freeme)); } -static PyTypeObject lcrand_pytype_skel = { - PyObject_HEAD_INIT(0) 0, /* Header */ +static const PyTypeObject lcrand_pytype_skel = { + PyVarObject_HEAD_INIT(0, 0) /* Header */ "LCRand", /* @tp_name@ */ sizeof(grand_pyobj), /* @tp_basicsize@ */ 0, /* @tp_itemsize@ */ @@ -365,7 +363,7 @@ static PyTypeObject lcrand_pytype_skel = { Py_TPFLAGS_BASETYPE, /* @tp_doc@ */ -"LCRand([seed = 0]): linear congruential generator.", + "LCRand([seed = 0]): linear congruential generator.", 0, /* @tp_traverse@ */ 0, /* @tp_clear@ */ @@ -397,8 +395,8 @@ static PyObject *fibrand_pynew(PyTypeObject *me, PyObject *arg, PyObject *kw) return (grand_dopywrap(fibrand_pytype, fibrand_create(n), f_freeme)); } -static PyTypeObject fibrand_pytype_skel = { - PyObject_HEAD_INIT(0) 0, /* Header */ +static const PyTypeObject fibrand_pytype_skel = { + PyVarObject_HEAD_INIT(0, 0) /* Header */ "FibRand", /* @tp_name@ */ sizeof(grand_pyobj), /* @tp_basicsize@ */ 0, /* @tp_itemsize@ */ @@ -422,7 +420,7 @@ static PyTypeObject fibrand_pytype_skel = { Py_TPFLAGS_BASETYPE, /* @tp_doc@ */ -"FibRand([seed = 0]): Fibonacci generator.", + "FibRand([seed = 0]): Fibonacci generator.", 0, /* @tp_traverse@ */ 0, /* @tp_clear@ */ @@ -447,38 +445,28 @@ static PyTypeObject fibrand_pytype_skel = { /*----- True random generator ---------------------------------------------*/ -static PyObject *trmeth_gate(PyObject *me, PyObject *arg) -{ - grand *r = GRAND_R(me); - if (!PyArg_ParseTuple(arg, ":gate")) return (0); - r->ops->misc(r, RAND_GATE); - RETURN_ME; -} +static PyObject *trmeth_gate(PyObject *me) + { grand *r = GRAND_R(me); r->ops->misc(GRAND_R(me), RAND_GATE); RETURN_ME; } -static PyObject *trmeth_stretch(PyObject *me, PyObject *arg) -{ - grand *r = GRAND_R(me); - if (!PyArg_ParseTuple(arg, ":stretch")) return (0); - r->ops->misc(r, RAND_STRETCH); - RETURN_ME; -} +static PyObject *trmeth_stretch(PyObject *me) + { grand *r = GRAND_R(me); r->ops->misc(r, RAND_STRETCH); RETURN_ME; } static PyObject *trmeth_add(PyObject *me, PyObject *arg) { grand *r = GRAND_R(me); - char *p; Py_ssize_t n; unsigned goodbits; - if (!PyArg_ParseTuple(arg, "s#O&:add", &p, &n, convuint, &goodbits)) + struct bin in; unsigned goodbits; + if (!PyArg_ParseTuple(arg, "O&O&:add", convbin, &in, convuint, &goodbits)) return (0); - r->ops->misc(r, RAND_ADD, p, (size_t)n, goodbits); + r->ops->misc(r, RAND_ADD, in.p, (size_t)in.sz, goodbits); RETURN_ME; } static PyObject *trmeth_key(PyObject *me, PyObject *arg) { grand *r = GRAND_R(me); - char *p; Py_ssize_t n; - if (!PyArg_ParseTuple(arg, "s#:key", &p, &n)) return (0); - r->ops->misc(r, RAND_KEY, p, (size_t)n); + struct bin k; + if (!PyArg_ParseTuple(arg, "O&:key", convbin, &k)) return (0); + r->ops->misc(r, RAND_KEY, k.p, (size_t)k.sz); RETURN_ME; } @@ -494,13 +482,8 @@ end: return (0); } -static PyObject *trmeth_timer(PyObject *me, PyObject *arg) -{ - grand *r = GRAND_R(me); - if (!PyArg_ParseTuple(arg, ":timer")) return (0); - r->ops->misc(r, RAND_TIMER); - RETURN_ME; -} +static PyObject *trmeth_timer(PyObject *me) + { grand *r = GRAND_R(me); r->ops->misc(r, RAND_TIMER); RETURN_ME; } static PyObject *truerand_pynew(PyTypeObject *ty, PyObject *arg, PyObject *kw) @@ -508,7 +491,7 @@ static PyObject *truerand_pynew(PyTypeObject *ty, static const char *const kwlist[] = { 0 }; grand *r; PyObject *rc = 0; - if (PyArg_ParseTupleAndKeywords(arg, kw, ":new", KWLIST)) goto end; + if (!PyArg_ParseTupleAndKeywords(arg, kw, ":new", KWLIST)) goto end; r = rand_create(); r->ops->misc(r, RAND_NOISESRC, &noise_source); r->ops->misc(r, RAND_SEED, 160); @@ -517,14 +500,14 @@ end: return (rc); } -static PyMethodDef truerand_pymethods[] = { +static const PyMethodDef truerand_pymethods[] = { #define METHNAME(name) trmeth_##name - METH (gate, "R.gate()") - METH (stretch, "R.stretch()") + NAMETH(gate, "R.gate()") + NAMETH(stretch, "R.stretch()") METH (key, "R.key(BYTES)") METH (seed, "R.seed(NBITS)") METH (add, "R.add(BYTES, GOODBITS") - METH (timer, "R.timer()") + NAMETH(timer, "R.timer()") #undef METHNAME { 0 } }; @@ -535,15 +518,15 @@ static PyObject *trget_goodbits(PyObject *me, void *hunoz) return (PyInt_FromLong(r->ops->misc(r, RAND_GOODBITS))); } -static PyGetSetDef truerand_pygetset[] = { +static const PyGetSetDef truerand_pygetset[] = { #define GETSETNAME(op, name) tr##op##_##name GET (goodbits, "R.goodbits -> good bits of entropy remaining") #undef GETSETNAME { 0 } }; -static PyTypeObject truerand_pytype_skel = { - PyObject_HEAD_INIT(0) 0, /* Header */ +static const PyTypeObject truerand_pytype_skel = { + PyVarObject_HEAD_INIT(0, 0) /* Header */ "TrueRand", /* @tp_name@ */ sizeof(grand_pyobj), /* @tp_basicsize@ */ 0, /* @tp_itemsize@ */ @@ -567,7 +550,7 @@ static PyTypeObject truerand_pytype_skel = { Py_TPFLAGS_BASETYPE, /* @tp_doc@ */ -"TrueRand(): true random number source.", + "TrueRand(): true random number source.", 0, /* @tp_traverse@ */ 0, /* @tp_clear@ */ @@ -575,9 +558,9 @@ static PyTypeObject truerand_pytype_skel = { 0, /* @tp_weaklistoffset@ */ 0, /* @tp_iter@ */ 0, /* @tp_iternext@ */ - truerand_pymethods, /* @tp_methods@ */ + PYMETHODS(truerand), /* @tp_methods@ */ 0, /* @tp_members@ */ - truerand_pygetset, /* @tp_getset@ */ + PYGETSET(truerand), /* @tp_getset@ */ 0, /* @tp_base@ */ 0, /* @tp_dict@ */ 0, /* @tp_descr_get@ */ @@ -642,13 +625,12 @@ static PyObject *gcrand_pynew(PyTypeObject *ty, PyObject *arg, PyObject *kw) { const gccrand_info *info = GCCRAND_INFO(ty); static const char *const kwlist[] = { "key", 0 }; - char *k; - Py_ssize_t n; + struct bin k; - if (!PyArg_ParseTupleAndKeywords(arg, kw, "s#:new", KWLIST, &k, &n)) + if (!PyArg_ParseTupleAndKeywords(arg, kw, "O&:new", KWLIST, convbin, &k)) goto end; - if (keysz(n, info->keysz) != n) VALERR("bad key length"); - return (grand_dopywrap(ty, info->func(k, n), f_freeme)); + if (keysz(k.sz, info->keysz) != k.sz) VALERR("bad key length"); + return (grand_dopywrap(ty, info->func(k.p, k.sz), f_freeme)); end: return (0); } @@ -658,15 +640,14 @@ static PyObject *gcirand_pynew(PyTypeObject *ty, PyObject *arg, PyObject *kw) const gccrand_info *info = GCCRAND_INFO(ty); uint32 i = 0; static const char *const kwlist[] = { "key", "i", 0 }; - char *k; - Py_ssize_t n; + struct bin k; - if (!PyArg_ParseTupleAndKeywords(arg, kw, "s#O&:new", KWLIST, - &k, &n, convu32, &i)) + if (!PyArg_ParseTupleAndKeywords(arg, kw, "O&|O&:new", KWLIST, + convbin, &k, convu32, &i)) goto end; - if (keysz(n, info->keysz) != n) VALERR("bad key length"); + if (keysz(k.sz, info->keysz) != k.sz) VALERR("bad key length"); return (grand_dopywrap(ty, - ((gcirand_func *)info->func)(k, n, i), + ((gcirand_func *)info->func)(k.p, k.sz, i), f_freeme)); end: return (0); @@ -676,16 +657,17 @@ static PyObject *gcnrand_pynew(PyTypeObject *ty, PyObject *arg, PyObject *kw) { const gccrand_info *info = GCCRAND_INFO(ty); static const char *const kwlist[] = { "key", "nonce", 0 }; - char *k, *n; - Py_ssize_t ksz, nsz; + static const octet zn[24] = { 0 }; + struct bin k, n; - if (!PyArg_ParseTupleAndKeywords(arg, kw, "s#s#:new", KWLIST, - &k, &ksz, &n, &nsz)) + n.p = zn; n.sz = info->noncesz; assert(info->noncesz <= sizeof(zn)); + if (!PyArg_ParseTupleAndKeywords(arg, kw, "O&|O&:new", KWLIST, + convbin, &k, convbin, &n)) goto end; - if (keysz(ksz, info->keysz) != ksz) VALERR("bad key length"); - if (nsz != info->noncesz) VALERR("bad nonce length"); + if (keysz(k.sz, info->keysz) != k.sz) VALERR("bad key length"); + if (n.sz != info->noncesz) VALERR("bad nonce length"); return (grand_dopywrap(ty, - ((gcnrand_func *)info->func)(k, ksz, n), + ((gcnrand_func *)info->func)(k.p, k.sz, n.p), f_freeme)); end: return (0); @@ -698,25 +680,25 @@ static PyObject *gcshakyrand_pynew(PyTypeObject *ty, static const char *const kwlist_shake[] = { "key", "func", "perso", 0 }, *const kwlist_func[] = { "key", "perso", 0 }; - char *k, *f = 0, *p = 0; - Py_ssize_t ksz, fsz = 0, psz = 0; + struct bin k, f = { 0, 0 }, p = { 0, 0 }; if ((info->f&RNGF_MASK) == RNG_SHAKE - ? !PyArg_ParseTupleAndKeywords(arg, kw, "s#|s#s#:new", + ? !PyArg_ParseTupleAndKeywords(arg, kw, "O&|O&O&:new", (/*unconst*/ char **)kwlist_shake, - &k, &ksz, &f, &fsz, &p, &psz) - : !PyArg_ParseTupleAndKeywords(arg, kw, "s#|s#:new", + convbin, &k, + convbin, &f, convbin, &p) + : !PyArg_ParseTupleAndKeywords(arg, kw, "O&|O&:new", (/*unconst*/ char **)kwlist_func, - &k, &ksz, &p, &psz)) + convbin, &k, convbin, &p)) goto end; - if (keysz(ksz, info->keysz) != ksz) VALERR("bad key length"); + if (keysz(k.sz, info->keysz) != k.sz) VALERR("bad key length"); return (grand_dopywrap(ty, (info->f&RNGF_MASK) == RNG_SHAKE - ? ((gcshakerand_func *)info->func)(f, fsz, - p, psz, - k, ksz) - : ((gcshafuncrand_func *)info->func)(p, psz, - k, ksz), + ? ((gcshakerand_func *)info->func)(f.p, f.sz, + p.p, p.sz, + k.p, k.sz) + : ((gcshafuncrand_func *)info->func)(p.p, p.sz, + k.p, k.sz), f_freeme)); end: return (0); @@ -749,17 +731,16 @@ static PyObject *gccrand_pywrap(const gccrand_info *info) } static PyObject *gccrget_name(PyObject *me, void *hunoz) - { return (PyString_FromString(GCCRAND_INFO(me)->name)); } + { return (TEXT_FROMSTR(GCCRAND_INFO(me)->name)); } static PyObject *gccrget_keysz(PyObject *me, void *hunoz) { return (keysz_pywrap(GCCRAND_INFO(me)->keysz)); } -static PyObject *gclrmeth_tell(PyObject *me, PyObject *arg) +static PyObject *gclrmeth_tell(PyObject *me) { grand *r = GRAND_R(me); PyObject *rc = 0; kludge64 off; - if (!PyArg_ParseTuple(arg, ":tell")) return (0); r->ops->misc(r, SALSA20_TELLU64, &off); rc = getk64(off); return (rc); @@ -775,24 +756,24 @@ static PyObject *gclrmeth_seek(PyObject *me, PyObject *arg) RETURN_ME; } -static PyGetSetDef gccrand_pygetset[] = { +static const PyGetSetDef gccrand_pygetset[] = { #define GETSETNAME(op, name) gccr##op##_##name - GET (keysz, "CR.keysz -> acceptable key sizes") - GET (name, "CR.name -> name of this kind of generator") + GET (keysz, "CR.keysz -> acceptable key sizes") + GET (name, "CR.name -> name of this kind of generator") #undef GETSETNAME { 0 } }; -static PyMethodDef gclatinrand_pymethods[] = { +static const PyMethodDef gclatinrand_pymethods[] = { #define METHNAME(name) gclrmeth_##name - METH (tell, "R.tell() -> OFF") + NAMETH(tell, "R.tell() -> OFF") METH (seek, "R.seek(OFF)") #undef METHNAME { 0 } }; -static PyTypeObject gccrand_pytype_skel = { - PyObject_HEAD_INIT(0) 0, /* Header */ +static const PyTypeObject gccrand_pytype_skel = { + PyVarObject_HEAD_INIT(0, 0) /* Header */ "GCCRand", /* @tp_name@ */ sizeof(gccrand_pyobj), /* @tp_basicsize@ */ 0, /* @tp_itemsize@ */ @@ -816,7 +797,7 @@ static PyTypeObject gccrand_pytype_skel = { Py_TPFLAGS_BASETYPE, /* @tp_doc@ */ -"Metaclass for symmetric crypto-based generators.", + "Metaclass for symmetric crypto-based generators.", 0, /* @tp_traverse@ */ 0, /* @tp_clear@ */ @@ -826,7 +807,7 @@ static PyTypeObject gccrand_pytype_skel = { 0, /* @tp_iternext@ */ 0, /* @tp_methods@ */ 0, /* @tp_members@ */ - gccrand_pygetset, /* @tp_getset@ */ + PYGETSET(gccrand), /* @tp_getset@ */ 0, /* @tp_base@ */ 0, /* @tp_dict@ */ 0, /* @tp_descr_get@ */ @@ -839,8 +820,8 @@ static PyTypeObject gccrand_pytype_skel = { 0 /* @tp_is_gc@ */ }; -static PyTypeObject gcrand_pytype_skel = { - PyObject_HEAD_INIT(0) 0, /* Header */ +static const PyTypeObject gcrand_pytype_skel = { + PyVarObject_HEAD_INIT(0, 0) /* Header */ "GCRand", /* @tp_name@ */ sizeof(grand_pyobj), /* @tp_basicsize@ */ 0, /* @tp_itemsize@ */ @@ -864,7 +845,7 @@ static PyTypeObject gcrand_pytype_skel = { Py_TPFLAGS_BASETYPE, /* @tp_doc@ */ -"Abstract base class for symmetric crypto-based generators.", + "Abstract base class for symmetric crypto-based generators.", 0, /* @tp_traverse@ */ 0, /* @tp_clear@ */ @@ -887,8 +868,8 @@ static PyTypeObject gcrand_pytype_skel = { 0 /* @tp_is_gc@ */ }; -static PyTypeObject gclatinrand_pytype_skel = { - PyObject_HEAD_INIT(0) 0, /* Header */ +static const PyTypeObject gclatinrand_pytype_skel = { + PyVarObject_HEAD_INIT(0, 0) /* Header */ "GCLatinRand", /* @tp_name@ */ sizeof(grand_pyobj), /* @tp_basicsize@ */ 0, /* @tp_itemsize@ */ @@ -912,7 +893,7 @@ static PyTypeObject gclatinrand_pytype_skel = { Py_TPFLAGS_BASETYPE, /* @tp_doc@ */ -"Abstract base class for symmetric crypto-based generators.", + "Abstract base class for symmetric crypto-based generators.", 0, /* @tp_traverse@ */ 0, /* @tp_clear@ */ @@ -920,7 +901,7 @@ static PyTypeObject gclatinrand_pytype_skel = { 0, /* @tp_weaklistoffset@ */ 0, /* @tp_iter@ */ 0, /* @tp_iternext@ */ - gclatinrand_pymethods, /* @tp_methods@ */ + PYMETHODS(gclatinrand), /* @tp_methods@ */ 0, /* @tp_members@ */ 0, /* @tp_getset@ */ 0, /* @tp_base@ */ @@ -939,57 +920,56 @@ static PyTypeObject gclatinrand_pytype_skel = { static PyObject *sslprf_pynew(PyTypeObject *ty, PyObject *arg, PyObject *kw) { - char *k, *s; - int ksz, ssz; + struct bin k, s; const gchash *hco = &md5, *hci = &sha; PyObject *rc = 0; static const char *const kwlist[] = { "key", "seed", "ohash", "ihash", 0 }; - if (!PyArg_ParseTupleAndKeywords(arg, kw, "s#s#|O&O&:new", KWLIST, - &k, &ksz, &s, &ssz, + if (!PyArg_ParseTupleAndKeywords(arg, kw, "O&O&|O&O&:new", KWLIST, + convbin, &k, convbin, &s, convgchash, &hco, convgchash, &hci)) goto end; - rc = grand_dopywrap(ty, sslprf_rand(hco, hci, k, ksz, s, ssz), f_freeme); + rc = grand_dopywrap(ty, sslprf_rand(hco, hci, k.p, k.sz, s.p, s.sz), + f_freeme); end: return (rc); } static PyObject *tlsdx_pynew(PyTypeObject *ty, PyObject *arg, PyObject *kw) { - char *k, *s; - int ksz, ssz; + struct bin k, s; const gcmac *mc = &sha_hmac; PyObject *rc = 0; static const char *const kwlist[] = { "key", "seed", "mac", 0 }; - if (!PyArg_ParseTupleAndKeywords(arg, kw, "s#s#|O&:new", KWLIST, - &k, &ksz, &s, &ssz, + if (!PyArg_ParseTupleAndKeywords(arg, kw, "O&O&|O&:new", KWLIST, + convbin, &k, convbin, &s, convgcmac, &mc)) goto end; - rc = grand_dopywrap(ty, tlsdx_rand(mc, k, ksz, s, ssz), f_freeme); + rc = grand_dopywrap(ty, tlsdx_rand(mc, k.p, k.sz, s.p, s.sz), f_freeme); end: return (rc); } static PyObject *tlsprf_pynew(PyTypeObject *ty, PyObject *arg, PyObject *kw) { - char *k, *s; - int ksz, ssz; + struct bin k, s; const gcmac *mcl = &md5_hmac, *mcr = &sha_hmac; PyObject *rc = 0; static const char *const kwlist[] = { "key", "seed", "lmac", "rmac", 0 }; - if (!PyArg_ParseTupleAndKeywords(arg, kw, "s#s#|O&O&:new", KWLIST, - &k, &ksz, &s, &ssz, + if (!PyArg_ParseTupleAndKeywords(arg, kw, "O&O&|O&O&:new", KWLIST, + convbin, &k, convbin, &s, convgcmac, &mcl, convgcmac, &mcr)) goto end; - rc = grand_dopywrap(ty, tlsprf_rand(mcl, mcr, k, ksz, s, ssz), f_freeme); + rc = grand_dopywrap(ty, tlsprf_rand(mcl, mcr, k.p, k.sz, s.p, s.sz), + f_freeme); end: return (rc); } -static PyTypeObject sslprf_pytype_skel = { - PyObject_HEAD_INIT(0) 0, /* Header */ +static const PyTypeObject sslprf_pytype_skel = { + PyVarObject_HEAD_INIT(0, 0) /* Header */ "SSLRand", /* @tp_name@ */ sizeof(grand_pyobj), /* @tp_basicsize@ */ 0, /* @tp_itemsize@ */ @@ -1013,8 +993,8 @@ static PyTypeObject sslprf_pytype_skel = { Py_TPFLAGS_BASETYPE, /* @tp_doc@ */ -"SSLRand(KEY, SEED, [ohash = md5], [ihash = sha]):\n\ - RNG for SSL master secret.", + "SSLRand(KEY, SEED, [ohash = md5], [ihash = sha]):\n" + " RNG for SSL master secret.", 0, /* @tp_traverse@ */ 0, /* @tp_clear@ */ @@ -1037,8 +1017,8 @@ static PyTypeObject sslprf_pytype_skel = { 0 /* @tp_is_gc@ */ }; -static PyTypeObject tlsdx_pytype_skel = { - PyObject_HEAD_INIT(0) 0, /* Header */ +static const PyTypeObject tlsdx_pytype_skel = { + PyVarObject_HEAD_INIT(0, 0) /* Header */ "TLSDataExpansion", /* @tp_name@ */ sizeof(grand_pyobj), /* @tp_basicsize@ */ 0, /* @tp_itemsize@ */ @@ -1062,8 +1042,8 @@ static PyTypeObject tlsdx_pytype_skel = { Py_TPFLAGS_BASETYPE, /* @tp_doc@ */ -"TLSDataExpansion(KEY, SEED, [mac = sha_hmac]):\n\ - TLS data expansion function.", + "TLSDataExpansion(KEY, SEED, [mac = sha_hmac]):\n" + " TLS data expansion function.", 0, /* @tp_traverse@ */ 0, /* @tp_clear@ */ @@ -1086,8 +1066,8 @@ static PyTypeObject tlsdx_pytype_skel = { 0 /* @tp_is_gc@ */ }; -static PyTypeObject tlsprf_pytype_skel = { - PyObject_HEAD_INIT(0) 0, /* Header */ +static const PyTypeObject tlsprf_pytype_skel = { + PyVarObject_HEAD_INIT(0, 0) /* Header */ "TLSPRF", /* @tp_name@ */ sizeof(grand_pyobj), /* @tp_basicsize@ */ 0, /* @tp_itemsize@ */ @@ -1111,8 +1091,8 @@ static PyTypeObject tlsprf_pytype_skel = { Py_TPFLAGS_BASETYPE, /* @tp_doc@ */ -"TLSPRF(KEY, SEED, [lmac = md5_hmac], [rmac = sha_hmac]):\n\ - TLS pseudorandom function.", + "TLSPRF(KEY, SEED, [lmac = md5_hmac], [rmac = sha_hmac]):\n" + " TLS pseudorandom function.", 0, /* @tp_traverse@ */ 0, /* @tp_clear@ */ @@ -1139,14 +1119,19 @@ static PyTypeObject tlsprf_pytype_skel = { static PyObject *dsarand_pynew(PyTypeObject *ty, PyObject *arg, PyObject *kw) { - char *p; - int sz; + struct bin in; + unsigned passes = 1; + grand *r; PyObject *rc = 0; - static const char *const kwlist[] = { "seed", 0 }; + static const char *const kwlist[] = { "seed", "passes", 0 }; - if (!PyArg_ParseTupleAndKeywords(arg, kw, "s#:new", KWLIST, &p, &sz)) + if (!PyArg_ParseTupleAndKeywords(arg, kw, "O&|O&:new", KWLIST, + convbin, &in, convuint, &passes)) goto end; - rc = grand_dopywrap(ty, dsarand_create(p, sz), f_freeme); + if (!passes) VALERR("must be positive"); + r = dsarand_create(in.p, in.sz); + if (passes != 1) r->ops->misc(r, DSARAND_PASSES, passes); + rc = grand_dopywrap(ty, r, f_freeme); end: return (rc); } @@ -1156,19 +1141,42 @@ static PyObject *drget_seed(PyObject *me, void *hunoz) grand *r = GRAND_R(me); int n = r->ops->misc(r, DSARAND_SEEDSZ); PyObject *rc = bytestring_pywrap(0, n); - r->ops->misc(r, DSARAND_GETSEED, PyString_AS_STRING(rc)); + r->ops->misc(r, DSARAND_GETSEED, BIN_PTR(rc)); return (rc); } -static PyGetSetDef dsarand_pygetset[] = { +static PyObject *drget_passes(PyObject *me, void *hunoz) +{ + grand *r = GRAND_R(me); + return (PyInt_FromLong(r->ops->misc(r, DSARAND_PASSES, 0))); +} + +static int drset_passes(PyObject *me, PyObject *val, void *hunoz) +{ + grand *r = GRAND_R(me); + long n; + int rc = -1; + + if (!val) NIERR("__del__"); + n = PyInt_AsLong(val); if (n == -1 && PyErr_Occurred()) goto end; + if (n <= 0) VALERR("must be positive"); + if (n > ULONG_MAX) VALERR("out of range"); + r->ops->misc(r, DSARAND_PASSES, (unsigned)n); + rc = 0; +end: + return (rc); +} + +static const PyGetSetDef dsarand_pygetset[] = { #define GETSETNAME(op, name) dr##op##_##name GET (seed, "R.seed -> current generator seed") + GETSET(passes, "R.passes -> number of passes to create output") #undef GETSETNAME { 0 } }; -static PyTypeObject dsarand_pytype_skel = { - PyObject_HEAD_INIT(0) 0, /* Header */ +static const PyTypeObject dsarand_pytype_skel = { + PyVarObject_HEAD_INIT(0, 0) /* Header */ "DSARand", /* @tp_name@ */ sizeof(grand_pyobj), /* @tp_basicsize@ */ 0, /* @tp_itemsize@ */ @@ -1192,7 +1200,7 @@ static PyTypeObject dsarand_pytype_skel = { Py_TPFLAGS_BASETYPE, /* @tp_doc@ */ -"DSARand(SEED): pseudorandom number generator for DSA parameters.", + "DSARand(SEED): pseudorandom number generator for DSA parameters.", 0, /* @tp_traverse@ */ 0, /* @tp_clear@ */ @@ -1202,7 +1210,7 @@ static PyTypeObject dsarand_pytype_skel = { 0, /* @tp_iternext@ */ 0, /* @tp_methods@ */ 0, /* @tp_members@ */ - dsarand_pygetset, /* @tp_getset@ */ + PYGETSET(dsarand), /* @tp_getset@ */ 0, /* @tp_base@ */ 0, /* @tp_dict@ */ 0, /* @tp_descr_get@ */ @@ -1233,11 +1241,8 @@ end: return (rc); } -static PyObject *bbsmeth_step(PyObject *me, PyObject *arg) -{ - grand *r = GRAND_R(me); if (!PyArg_ParseTuple(arg, ":step")) return (0); - r->ops->misc(r, BBS_STEP); RETURN_ME; -} +static PyObject *bbsmeth_step(PyObject *me) + { grand *r = GRAND_R(me); r->ops->misc(r, BBS_STEP); RETURN_ME; } static PyObject *bbsmeth_bits(PyObject *me, PyObject *arg) { @@ -1249,11 +1254,8 @@ end: return (0); } -static PyObject *bbsmeth_wrap(PyObject *me, PyObject *arg) -{ - grand *r = GRAND_R(me); if (!PyArg_ParseTuple(arg, ":wrap")) return (0); - r->ops->misc(r, BBS_WRAP); RETURN_ME; -} +static PyObject *bbsmeth_wrap(PyObject *me) + { grand *r = GRAND_R(me); r->ops->misc(r, BBS_WRAP); RETURN_ME; } static PyObject *bbsget_n(PyObject *me, void *hunoz) { @@ -1269,7 +1271,7 @@ static PyObject *bbsget_x(PyObject *me, void *hunoz) static int bbsset_x(PyObject *me, PyObject *val, void *hunoz) { - mp *x = 0; grand *r = GRAND_R(me); int rc = -1; if (!x) NIERR("__del__"); + mp *x = 0; grand *r = GRAND_R(me); int rc = -1; if (!val) NIERR("__del__"); if ((x = getmp(val)) == 0) goto end; r->ops->misc(r, BBS_SET, x); rc = 0; end: mp_drop(x); return (rc); @@ -1281,16 +1283,16 @@ static PyObject *bbsget_stepsz(PyObject *me, void *hunoz) return (PyInt_FromLong(r->ops->misc(r, BBS_STEPSZ))); } -static PyMethodDef bbs_pymethods[] = { +static const PyMethodDef bbs_pymethods[] = { #define METHNAME(name) bbsmeth_##name - METH (step, "R.step(): steps the generator (not useful)") - METH (bits, "R.bits(N) -> W: returns N bits (<= 32) from the generator") - METH (wrap, "R.wrap(): flushes unused bits in internal buffer") + NAMETH(step, "R.step(): steps the generator (not useful)") + METH (bits, "R.bits(N) -> W: returns N bits (<= 32) from the generator") + NAMETH(wrap, "R.wrap(): flushes unused bits in internal buffer") #undef METHNAME { 0 } }; -static PyGetSetDef bbs_pygetset[] = { +static const PyGetSetDef bbs_pygetset[] = { #define GETSETNAME(op, name) bbs##op##_##name GET (n, "R.n -> Blum modulus") GETSET(x, "R.x -> current seed value") @@ -1299,8 +1301,8 @@ static PyGetSetDef bbs_pygetset[] = { { 0 } }; -static PyTypeObject bbs_pytype_skel = { - PyObject_HEAD_INIT(0) 0, /* Header */ +static const PyTypeObject bbs_pytype_skel = { + PyVarObject_HEAD_INIT(0, 0) /* Header */ "BlumBlumShub", /* @tp_name@ */ sizeof(grand_pyobj), /* @tp_basicsize@ */ 0, /* @tp_itemsize@ */ @@ -1324,7 +1326,7 @@ static PyTypeObject bbs_pytype_skel = { Py_TPFLAGS_BASETYPE, /* @tp_doc@ */ -"BlumBlumShub(N, [x = 2]): Blum-Blum-Shub pseudorandom number generator.", + "BlumBlumShub(N, [x = 2]): Blum-Blum-Shub pseudorandom number generator.", 0, /* @tp_traverse@ */ 0, /* @tp_clear@ */ @@ -1332,9 +1334,9 @@ static PyTypeObject bbs_pytype_skel = { 0, /* @tp_weaklistoffset@ */ 0, /* @tp_iter@ */ 0, /* @tp_iternext@ */ - bbs_pymethods, /* @tp_methods@ */ + PYMETHODS(bbs), /* @tp_methods@ */ 0, /* @tp_members@ */ - bbs_pygetset, /* @tp_getset@ */ + PYGETSET(bbs), /* @tp_getset@ */ 0, /* @tp_base@ */ 0, /* @tp_dict@ */ 0, /* @tp_descr_get@ */ @@ -1380,24 +1382,25 @@ end: return ((PyObject *)rc); } -static PyObject *meth__BBSPriv_generate(PyObject *me, - PyObject *arg, PyObject *kw) +static PyObject *bpmeth_generate(PyObject *me, PyObject *arg, PyObject *kw) { bbs_priv bp = { 0 }; mp *x = MP_TWO; - pgev evt = { 0 }; + struct excinfo exc = EXCINFO_INIT; + pypgev evt = { { 0 } }; unsigned nbits, n = 0; grand *r = &rand_global; static const char *const kwlist[] = - { "class", "nbits", "event", "rng", "nsteps", "seed", 0 }; + { "nbits", "event", "rng", "nsteps", "seed", 0 }; bbspriv_pyobj *rc = 0; - if (!PyArg_ParseTupleAndKeywords(arg, kw, "OO&|O&O&O&O&:generate", KWLIST, - &me, convuint, &nbits, convpgev, &evt, + evt.exc = &exc; + if (!PyArg_ParseTupleAndKeywords(arg, kw, "O&|O&O&O&O&:generate", KWLIST, + convuint, &nbits, convpgev, &evt, convgrand, &r, convuint, &n, convmp, &x)) goto end; - if (bbs_gen(&bp, nbits, r, n, evt.proc, evt.ctx)) - VALERR("prime genration failed"); + if (bbs_gen(&bp, nbits, r, n, evt.ev.proc, evt.ev.ctx)) + PGENERR(&exc); rc = PyObject_New(bbspriv_pyobj, bbspriv_pytype); rc->gr.r = bbs_rand(bp.n, x); rc->gr.f = f_freeme; @@ -1441,15 +1444,17 @@ static PyObject *bpget_p(PyObject *me, void *hunoz) static PyObject *bpget_q(PyObject *me, void *hunoz) { return (mp_pywrap(MP_COPY(BBSPRIV_BP(me)->q))); } -static PyMethodDef bbspriv_pymethods[] = { +static const PyMethodDef bbspriv_pymethods[] = { #define METHNAME(name) bpmeth_##name - METH (ff, "R.ff(N): fast-forward N places") - METH (rew, "R.rew(N): rewind N places") + METH (ff, "R.ff(N): fast-forward N places") + METH (rew, "R.rew(N): rewind N places") + KWSMTH(generate, "generate(NBITS, [event = pgen_nullev], " + "[rng = rand], [nsteps = 0], [seed = 2]) -> R") #undef METHNAME { 0 } }; -static PyGetSetDef bbspriv_pygetset[] = { +static const PyGetSetDef bbspriv_pygetset[] = { #define GETSETNAME(op, name) bp##op##_##name GET (n, "R.n -> Blum modulus") GET (p, "R.p -> one of the factors of the modulus") @@ -1458,8 +1463,8 @@ static PyGetSetDef bbspriv_pygetset[] = { { 0 } }; -static PyTypeObject bbspriv_pytype_skel = { - PyObject_HEAD_INIT(0) 0, /* Header */ +static const PyTypeObject bbspriv_pytype_skel = { + PyVarObject_HEAD_INIT(0, 0) /* Header */ "BBSPriv", /* @tp_name@ */ sizeof(bbspriv_pyobj), /* @tp_basicsize@ */ 0, /* @tp_itemsize@ */ @@ -1483,8 +1488,8 @@ static PyTypeObject bbspriv_pytype_skel = { Py_TPFLAGS_BASETYPE, /* @tp_doc@ */ -"BBSPriv(..., seed = 2]): Blum-Blum-Shub, with private key.\n\ - Keywords: n, p, q; must provide at least two", + "BBSPriv(..., [seed = 2]): Blum-Blum-Shub, with private key.\n" + " Keywords: n, p, q; must provide at least two", 0, /* @tp_traverse@ */ 0, /* @tp_clear@ */ @@ -1492,9 +1497,9 @@ static PyTypeObject bbspriv_pytype_skel = { 0, /* @tp_weaklistoffset@ */ 0, /* @tp_iter@ */ 0, /* @tp_iternext@ */ - bbspriv_pymethods, /* @tp_methods@ */ + PYMETHODS(bbspriv), /* @tp_methods@ */ 0, /* @tp_members@ */ - bbspriv_pygetset, /* @tp_getset@ */ + PYGETSET(bbspriv), /* @tp_getset@ */ 0, /* @tp_base@ */ 0, /* @tp_dict@ */ 0, /* @tp_descr_get@ */ @@ -1509,11 +1514,8 @@ static PyTypeObject bbspriv_pytype_skel = { /*----- Global stuff ------------------------------------------------------*/ -static PyMethodDef methods[] = { -#define METHNAME(name) meth_##name - KWMETH(_BBSPriv_generate, "\ -generate(NBITS, [event = pgen_nullev, rng = rand, nsteps = 0, seed = 2])") -#undef METHNAME +static const struct nameval consts[] = { + CONST(RAND_IBITS), { 0 } }; @@ -1534,11 +1536,12 @@ void rand_pyinit(void) INITTYPE(gclatinrand, gcrand); rand_noisesrc(RAND_GLOBAL, &noise_source); rand_seed(RAND_GLOBAL, 160); - addmethods(methods); } -#define gccrand gccrand_info -GEN(gccrands, crand) +static const char *crand_namefn(const void *p) + { const gccrand_info *const *cls = p; return (*cls ? (*cls)->name : 0); } +static PyObject *crand_valfn(const void *p) + { const gccrand_info *const *cls = p; return (gccrand_pywrap(*cls)); } void rand_pyinsert(PyObject *mod) { @@ -1556,9 +1559,11 @@ void rand_pyinsert(PyObject *mod) INSERT("GCRand", gcrand_pytype); INSERT("GCLatinRand", gclatinrand_pytype); rand_pyobj = grand_pywrap(&rand_global, 0); Py_INCREF(rand_pyobj); - gccrands_dict = gccrands(); Py_INCREF(gccrands_dict); - INSERT("gccrands", gccrands_dict); + gccrands_dict = make_algtab(gcrandtab, sizeof(gccrand_info *), + crand_namefn, crand_valfn); + INSERT("gccrands", gccrands_dict); Py_INCREF(gccrands_dict); INSERT("rand", rand_pyobj); + setconstants(mod, consts); } /*----- That's all, folks -------------------------------------------------*/