[ViewVC] Diff of: cvs/Convert-BER-XS/XS.xs

Comparing Convert-BER-XS/XS.xs (file contents):
Revision 1.4 by root, Fri Apr 19 20:38:38 2019 UTC vs.
Revision 1.9 by root, Sat Apr 20 02:12:27 2019 UTC

…		…
10	ASN_INTEGER32 = 0x02,	10	ASN_INTEGER32 = 0x02,
11	ASN_BIT_STRING = 0x03,	11	ASN_BIT_STRING = 0x03,
12	ASN_OCTET_STRING = 0x04,	12	ASN_OCTET_STRING = 0x04,
13	ASN_NULL = 0x05,	13	ASN_NULL = 0x05,
14	ASN_OBJECT_IDENTIFIER = 0x06,	14	ASN_OBJECT_IDENTIFIER = 0x06,
15	ASN_OID = 0x06, //X	15	ASN_OID = 0x06,
16	ASN_OBJECT_DESCRIPTOR = 0x07, //X	16	ASN_OBJECT_DESCRIPTOR = 0x07,
17	ASN_EXTERNAL = 0x08, //X	17	ASN_EXTERNAL = 0x08,
18	ASN_REAL = 0x09, //X	18	ASN_REAL = 0x09,
19	ASN_ENUMERATED = 0x0a, //X	19	ASN_ENUMERATED = 0x0a,
20	ASN_EMBEDDED_PDV = 0x0b, //X	20	ASN_EMBEDDED_PDV = 0x0b,
21	ASN_UTF8_STRING = 0x0c, //X	21	ASN_UTF8_STRING = 0x0c,
22	ASN_RELATIVE_OID = 0x0d, //X	22	ASN_RELATIVE_OID = 0x0d,
23	ASN_SEQUENCE = 0x10,	23	ASN_SEQUENCE = 0x10,
24	ASN_SET = 0x11, //X	24	ASN_SET = 0x11,
25	ASN_NUMERIC_STRING = 0x12, //X	25	ASN_NUMERIC_STRING = 0x12,
26	ASN_PRINTABLE_STRING = 0x13, //X	26	ASN_PRINTABLE_STRING = 0x13,
27	ASN_TELETEX_STRING = 0x14, //X	27	ASN_TELETEX_STRING = 0x14,
28	ASN_T61_STRING = 0x14, //X	28	ASN_T61_STRING = 0x14,
29	ASN_VIDEOTEX_STRING = 0x15, //X	29	ASN_VIDEOTEX_STRING = 0x15,
30	ASN_IA5_STRING = 0x16, //X	30	ASN_IA5_STRING = 0x16,
31	ASN_ASCII_STRING = 0x16, //X	31	ASN_ASCII_STRING = 0x16,
32	ASN_UTC_TIME = 0x17, //X	32	ASN_UTC_TIME = 0x17,
33	ASN_GENERALIZED_TIME = 0x18, //X	33	ASN_GENERALIZED_TIME = 0x18,
34	ASN_GRAPHIC_STRING = 0x19, //X	34	ASN_GRAPHIC_STRING = 0x19,
35	ASN_VISIBLE_STRING = 0x1a, //X	35	ASN_VISIBLE_STRING = 0x1a,
36	ASN_ISO646_STRING = 0x1a, //X	36	ASN_ISO646_STRING = 0x1a,
37	ASN_GENERAL_STRING = 0x1b, //X	37	ASN_GENERAL_STRING = 0x1b,
38	ASN_UNIVERSAL_STRING = 0x1c, //X	38	ASN_UNIVERSAL_STRING = 0x1c,
39	ASN_CHARACTER_STRING = 0x1d, //X	39	ASN_CHARACTER_STRING = 0x1d,
40	ASN_BMPSTRING = 0x1e, //X	40	ASN_BMP_STRING = 0x1e,
41		41
42	ASN_TAG_BER = 0x1f,	42	ASN_TAG_BER = 0x1f,
43	ASN_TAG_MASK = 0x1f,	43	ASN_TAG_MASK = 0x1f,
44		44
45	// primitive/constructed	45	// primitive/constructed
46	ASN_CONSTRUCTED = 0x20,	46	ASN_CONSTRUCTED = 0x20,
47		47
48	// ASN_CLASS	48	// ASN_CLASS
49	ASN_UNIVERSAL = 0x00,	49	ASN_UNIVERSAL = 0x00,
50	ASN_APPLICATION = 0x40,	50	ASN_APPLICATION = 0x01,
51	ASN_CONTEXT = 0x80,	51	ASN_CONTEXT = 0x02,
52	ASN_PRIVATE = 0xc0,	52	ASN_PRIVATE = 0x03,
53		53
54	ASN_CLASS_MASK = 0xc0,	54	ASN_CLASS_MASK = 0xc0,
55	ASN_CLASS_SHIFT = 6,	55	ASN_CLASS_SHIFT = 6,
56		56
57	// ASN_APPLICATION SNMP	57	// ASN_APPLICATION SNMP
…		…
62	SNMP_OPAQUE = 0x04,	62	SNMP_OPAQUE = 0x04,
63	SNMP_COUNTER64 = 0x06,	63	SNMP_COUNTER64 = 0x06,
64	};	64	};
65		65
66	enum {	66	enum {
		67	BER_TYPE_BYTES,
		68	BER_TYPE_UTF8,
		69	BER_TYPE_UCS2,
		70	BER_TYPE_UCS4,
		71	BER_TYPE_INT,
		72	BER_TYPE_OID,
		73	BER_TYPE_RELOID,
		74	BER_TYPE_NULL,
		75	BER_TYPE_BOOL,
		76	BER_TYPE_REAL,
		77	BER_TYPE_IPADDRESS,
		78	BER_TYPE_CROAK,
		79	};
		80
		81	enum {
67	BER_CLASS = 0,	82	BER_CLASS = 0,
68	BER_TAG = 1,	83	BER_TAG = 1,
69	BER_CONSTRUCTED = 2,	84	BER_CONSTRUCTED = 2,
70	BER_DATA = 3,	85	BER_DATA = 3,
71	BER_ARRAYSIZE	86	BER_ARRAYSIZE
72	};	87	};
73		88
74	#define MAX_OID_STRLEN 4096	89	#define MAX_OID_STRLEN 4096
75		90
		91	typedef void profile_type;
		92
		93	static profile_type cur_profile, default_profile;
76	static SV *buf_sv; // encoding buffer	94	static SV *buf_sv; // encoding buffer
77	static U8 buf, cur, *end; // buffer start, current, end	95	static U8 buf, cur, *end; // buffer start, current, end
		96
		97	#if PERL_VERSION < 18
		98	# define utf8_to_uvchr_buf(s,e,l) utf8_to_uvchr (s, l)
		99	#endif
78		100
79	#if __GNUC__ >= 3	101	#if __GNUC__ >= 3
80	# define expect(expr,value) __builtin_expect ((expr), (value))	102	# define expect(expr,value) __builtin_expect ((expr), (value))
81	# define INLINE static inline	103	# define INLINE static inline
82	#else	104	#else
…		…
85	#endif	107	#endif
86		108
87	#define expect_false(expr) expect ((expr) != 0, 0)	109	#define expect_false(expr) expect ((expr) != 0, 0)
88	#define expect_true(expr) expect ((expr) != 0, 1)	110	#define expect_true(expr) expect ((expr) != 0, 1)
89		111
		112	/////////////////////////////////////////////////////////////////////////////
		113
		114	static SV *sviv_cache[32];
		115
90	// for "small" integers, return a readonly sv, otherwise create a new one	116	// for "small" integers, return a readonly sv, otherwise create a new one
91	static SV *newSVcacheint (int val)	117	static SV *newSVcacheint (int val)
92	{	118	{
93	static SV *cache[32];
94
95	if (expect_false (val < 0 \|\| val >= sizeof (cache)))	119	if (expect_false (val < 0 \|\| val >= sizeof (sviv_cache)))
96	return newSViv (val);	120	return newSViv (val);
97		121
98	if (expect_false (!cache [val]))	122	if (expect_false (!sviv_cache [val]))
99	{	123	{
100	cache [val] = newSVuv (val);	124	sviv_cache [val] = newSVuv (val);
101	SvREADONLY_on (cache [val]);	125	SvREADONLY_on (sviv_cache [val]);
102	}	126	}
103		127
104	return SvREFCNT_inc_NN (cache [val]);	128	return SvREFCNT_inc_NN (sviv_cache [val]);
		129	}
		130
		131	/////////////////////////////////////////////////////////////////////////////
		132
		133	static HV *profile_stash;
		134
		135	static profile_type *
		136	SvPROFILE (SV *profile)
		137	{
		138	if (!SvOK (profile))
		139	return default_profile;
		140
		141	if (!SvROK (profile))
		142	croak ("invalid profile");
		143
		144	profile = SvRV (profile);
		145
		146	if (SvSTASH (profile) != profile_stash)
		147	croak ("invalid profile object");
		148
		149	return (void *)profile;
		150	}
		151
		152	static int
		153	profile_lookup (profile_type *profile, int klass, int tag)
		154	{
		155	SV sv = (SV )profile;
		156	U32 idx = (tag << 2) + klass;
		157
		158	if (expect_false (idx >= SvCUR (sv)))
		159	return BER_TYPE_BYTES;
		160
		161	return SvPVX (sv)[idx];
		162	}
		163
		164	static int
		165	profile_set (profile_type *profile, int klass, int tag, int type)
		166	{
		167	SV sv = (SV )profile;
		168	U32 idx = (tag << 2) + klass;
		169	STRLEN oldlen = SvCUR (sv);
		170	STRLEN newlen = idx + 2;
		171
		172	if (idx >= oldlen)
		173	{
		174	sv_grow (sv, newlen);
		175	memset (SvPVX (sv) + oldlen, BER_TYPE_BYTES, newlen - oldlen);
		176	SvCUR_set (sv, newlen);
		177	}
		178
		179	SvPVX (sv)[idx] = type;
		180	}
		181
		182	static SV *
		183	profile_new ()
		184	{
		185	SV *sv = newSVpvn ("", 0);
		186
		187	static const struct {
		188	int klass;
		189	int tag;
		190	int type;
		191	} *celem, default_map[] = {
		192	{ ASN_UNIVERSAL, ASN_BOOLEAN , BER_TYPE_BOOL },
		193	{ ASN_UNIVERSAL, ASN_INTEGER32 , BER_TYPE_INT },
		194	{ ASN_UNIVERSAL, ASN_NULL , BER_TYPE_NULL },
		195	{ ASN_UNIVERSAL, ASN_OBJECT_IDENTIFIER, BER_TYPE_OID },
		196	{ ASN_UNIVERSAL, ASN_OBJECT_DESCRIPTOR, BER_TYPE_OID },
		197	{ ASN_UNIVERSAL, ASN_RELATIVE_OID , BER_TYPE_RELOID },
		198	{ ASN_UNIVERSAL, ASN_REAL , BER_TYPE_REAL },
		199	{ ASN_UNIVERSAL, ASN_UTF8_STRING , BER_TYPE_UTF8 },
		200	{ ASN_UNIVERSAL, ASN_BMP_STRING , BER_TYPE_UCS2 },
		201	{ ASN_UNIVERSAL, ASN_UNIVERSAL_STRING , BER_TYPE_UCS4 },
		202	};
		203
		204	for (celem = default_map + sizeof (default_map) / sizeof (default_map [0]); celem > default_map; celem--)
		205	profile_set ((void *)sv, celem->klass, celem->tag, celem->type);
		206
		207	return sv_bless (newRV_noinc (sv), profile_stash);
105	}	208	}
106		209
107	/////////////////////////////////////////////////////////////////////////////	210	/////////////////////////////////////////////////////////////////////////////
108	// decoder	211	// decoder
109		212
…		…
187	}	290	}
188		291
189	return res;	292	return res;
190	}	293	}
191		294
192	static U32	295	static SV *
193	get_integer32 (void)	296	decode_int ()
194	{	297	{
195	U32 length = get_length ();	298	int len = get_length ();
196		299
197	if (length <= 0)	300	if (len <= 0)
198	{	301	{
199	error ("INTEGER32 length equal to zero");	302	error ("integer length equal to zero");
200	return 0;	303	return 0;
201	}	304	}
202		305
203	U8 *data = get_n (length);	306	U8 *data = get_n (len);
204		307
205	if (length > 5 \|\| (length > 4 && data [0]))	308	int negative = data [0] & 0x80;
206	{
207	error ("INTEGER32 length too long");
208	return 0;
209	}
210		309
211	U32 res = data [0] & 0x80 ? 0xffffffff : 0;	310	UV val = negative ? -1 : 0; // copy signbit to all bits
212		311
213	while (length--)	312	do
214	res = (res << 8) \| *data++;	313	val = (val << 8) \| *data++;
		314	while (--len);
215		315
216	return res;	316	// the cast to IV relies on implementation-defined behaviour (two's complement cast)
		317	// but that's ok, as perl relies on it as well.
		318	return negative ? newSViv ((IV)val) : newSVuv (val);
217	}	319	}
218		320
219	static SV *	321	static SV *
220	decode_integer32 (void)	322	decode_data (void)
221	{	323	{
222	return newSViv ((I32)get_integer32 ());
223	}
224
225	static SV *
226	decode_unsigned32 (void)
227	{
228	return newSVuv ((U32)get_integer32 ());
229	}
230
231	#if IVSIZE >= 8
232
233	static U64TYPE
234	get_integer64 (void)
235	{
236	U32 length = get_length ();	324	U32 len = get_length ();
237
238	if (length <= 0)
239	{
240	error ("INTEGER64 length equal to zero");
241	return 0;
242	}
243
244	U8 *data = get_n (length);	325	U8 *data = get_n (len);
245
246	if (length > 9 \|\| (length > 8 && data [0]))
247	{
248	error ("INTEGER64 length too long");
249	return 0;
250	}
251
252	U64TYPE res = data [0] & 0x80 ? 0xffffffffffffffff : 0;
253
254	while (length--)
255	res = (res << 8) \| *data++;
256
257	return res;
258	}
259
260	static SV *
261	decode_integer64 (void)
262	{
263	return newSViv ((I64TYPE)get_integer64 ());
264	}
265
266	static SV *
267	decode_unsigned64 (void)
268	{
269	return newSVuv ((U64TYPE)get_integer64 ());
270	}
271
272	#endif
273
274	static SV *
275	decode_octet_string (void)
276	{
277	U32 length = get_length ();
278	U8 *data = get_n (length);
279	return newSVpvn (data, length);	326	return newSVpvn ((char *)data, len);
280	}	327	}
281		328
282	// gelper for decode_object_identifier	329	// gelper for decode_object_identifier
283	static char *	330	static char *
284	write_uv (char *buf, U32 u)	331	write_uv (char *buf, U32 u)
285	{	332	{
286	// the one-digit case is absolutely predominant, so this pays off (hopefully)	333	// the one-digit case is absolutely predominant, so this pays off (hopefully)
287	if (u < 10)	334	if (expect_true (u < 10))
288	*buf++ = u + '0';	335	*buf++ = u + '0';
289	else	336	else
290	{	337	{
291	char *beg = buf;	338	char *beg = buf;
292		339
…		…
308		355
309	return buf;	356	return buf;
310	}	357	}
311		358
312	static SV *	359	static SV *
313	decode_object_identifier (void)	360	decode_oid (int relative)
314	{	361	{
315	U32 length = get_length ();	362	U32 len = get_length ();
316		363
317	if (length <= 0)	364	if (len <= 0)
318	{	365	{
319	error ("OBJECT IDENTIFIER length equal to zero");	366	error ("OBJECT IDENTIFIER length equal to zero");
320	return &PL_sv_undef;	367	return &PL_sv_undef;
321	}	368	}
322		369
323	U8 *end = cur + length;	370	U8 *end = cur + len;
324	U32 w = get_w ();	371	U32 w = get_w ();
325		372
326	static char oid[MAX_OID_STRLEN]; // must be static	373	static char oid[MAX_OID_STRLEN]; // must be static
327	char *app = oid;	374	char *app = oid;
328		375
		376	if (relative)
		377	app = write_uv (app, w);
		378	else
		379	{
329	app = write_uv (app, (U8)w / 40);	380	app = write_uv (app, (U8)w / 40);
330	*app++ = '.';	381	*app++ = '.';
331	app = write_uv (app, (U8)w % 40);	382	app = write_uv (app, (U8)w % 40);
		383	}
332		384
333	// we assume an oid component is never > 64 bytes	385	// we assume an oid component is never > 64 bytes
334	while (cur < end && oid + sizeof (oid) - app > 64)	386	while (cur < end && oid + sizeof (oid) - app > 64)
335	{	387	{
336	w = get_w ();	388	w = get_w ();
…		…
339	}	391	}
340		392
341	return newSVpvn (oid, app - oid);	393	return newSVpvn (oid, app - oid);
342	}	394	}
343		395
		396	// TODO: this is unacceptably slow
		397	static SV *
		398	decode_ucs (int chrsize)
		399	{
		400	SV *res = NEWSV (0, 0);
		401
		402	U32 len = get_length ();
		403
		404	if (len & (chrsize - 1))
		405	croak ("BER_TYPE_UCS has an invalid number of octets (%d)", len);
		406
		407	while (len)
		408	{
		409	U8 b1 = get_u8 ();
		410	U8 b2 = get_u8 ();
		411	U32 chr = (b1 << 8) \| b2;
		412
		413	if (chrsize == 4)
		414	{
		415	U8 b3 = get_u8 ();
		416	U8 b4 = get_u8 ();
		417	chr = (chr << 16) \| (b3 << 8) \| b4;
		418	}
		419
		420	U8 uchr [UTF8_MAXBYTES];
		421	int uclen = uvuni_to_utf8 (uchr, chr) - uchr;
		422
		423	sv_catpvn (res, (const char *)uchr, uclen);
		424	len -= chrsize;
		425	}
		426
		427	SvUTF8_on (res);
		428
		429	return res;
		430	}
		431
344	static SV *	432	static SV *
345	decode_ber ()	433	decode_ber ()
346	{	434	{
347	int identifier = get_u8 ();	435	int identifier = get_u8 ();
348		436
349	SV *res;	437	SV *res;
350		438
351	int constructed = identifier & ASN_CONSTRUCTED;	439	int constructed = identifier & ASN_CONSTRUCTED;
352	int klass = identifier & ASN_CLASS_MASK;	440	int klass = (identifier & ASN_CLASS_MASK) >> ASN_CLASS_SHIFT;
353	int tag = identifier & ASN_TAG_MASK;	441	int tag = identifier & ASN_TAG_MASK;
354		442
355	if (tag == ASN_TAG_BER)	443	if (tag == ASN_TAG_BER)
356	tag = get_w ();	444	tag = get_w ();
357		445
358	if (tag == ASN_TAG_BER)	446	if (tag == ASN_TAG_BER)
…		…
371	croak ("constructed type %02x overflow (%x %x)\n", identifier, cur - buf, seqend);	459	croak ("constructed type %02x overflow (%x %x)\n", identifier, cur - buf, seqend);
372		460
373	res = newRV_inc ((SV *)av);	461	res = newRV_inc ((SV *)av);
374	}	462	}
375	else	463	else
376	switch (identifier)	464	switch (profile_lookup (cur_profile, klass, tag))
377	{	465	{
378	case ASN_NULL:	466	case BER_TYPE_NULL:
379	res = &PL_sv_undef;	467	res = &PL_sv_undef;
380	break;	468	break;
381		469
382	case ASN_OBJECT_IDENTIFIER:	470	case BER_TYPE_BOOL:
		471	{
		472	U32 len = get_length ();
		473
		474	if (len != 1)
		475	croak ("BER_TYPE_BOOLEAN type with invalid length %d encountered", len);
		476
		477	res = newSVcacheint (get_u8 () ? 0 : 1);
		478	}
		479	break;
		480
		481	case BER_TYPE_OID:
383	res = decode_object_identifier ();	482	res = decode_oid (0);
384	break;	483	break;
385		484
386	case ASN_INTEGER32:	485	case BER_TYPE_RELOID:
		486	res = decode_oid (1);
		487	break;
		488
		489	case BER_TYPE_INT:
387	res = decode_integer32 ();	490	res = decode_int ();
388	break;	491	break;
389		492
390	case ASN_APPLICATION \| SNMP_UNSIGNED32:	493	case BER_TYPE_UTF8:
391	case ASN_APPLICATION \| SNMP_COUNTER32:	494	res = decode_data ();
392	case ASN_APPLICATION \| SNMP_TIMETICKS:	495	SvUTF8_on (res);
		496	break;
		497
		498	case BER_TYPE_BYTES:
		499	res = decode_data ();
		500	break;
		501
		502	case BER_TYPE_IPADDRESS:
		503	{
		504	U32 len = get_length ();
		505
		506	if (len != 4)
		507	croak ("BER_TYPE_IPADDRESS type with invalid length %d encountered", len);
		508
		509	U8 c1 = get_u8 ();
		510	U8 c2 = get_u8 ();
		511	U8 c3 = get_u8 ();
		512	U8 c4 = get_u8 ();
		513
		514	res = newSVpvf ("%d.%d.%d.%d", c1, c2, c3, c4);
		515	}
		516	break;
		517
		518	case BER_TYPE_UCS2:
		519	res = decode_ucs (2);
		520	break;
		521
		522	case BER_TYPE_UCS4:
393	res = decode_unsigned32 ();	523	res = decode_ucs (4);
394	break;	524	break;
395		525
396	#if 0 // handled by default case	526	case BER_TYPE_REAL:
397	case ASN_OCTET_STRING:	527	case BER_TYPE_CROAK:
398	case ASN_APPLICATION \| ASN_IPADDRESS:
399	case ASN_APPLICATION \| ASN_OPAQUE:
400	res = decode_octet_string ();
401	break;
402	#endif
403
404	case ASN_APPLICATION \| SNMP_COUNTER64:
405	res = decode_integer64 ();
406	break;
407
408	default:	528	default:
409	res = decode_octet_string ();	529	croak ("unconfigured/unsupported class/tag %d/%d", klass, tag);
410	break;
411	}	530	}
412		531
413	AV *av = newAV ();	532	AV *av = newAV ();
414	av_fill (av, BER_ARRAYSIZE - 1);	533	av_fill (av, BER_ARRAYSIZE - 1);
415	AvARRAY (av)[BER_CLASS ] = newSVcacheint (klass >> ASN_CLASS_SHIFT);	534	AvARRAY (av)[BER_CLASS ] = newSVcacheint (klass);
416	AvARRAY (av)[BER_TAG ] = newSVcacheint (tag);	535	AvARRAY (av)[BER_TAG ] = newSVcacheint (tag);
417	AvARRAY (av)[BER_CONSTRUCTED] = newSVcacheint (constructed ? 1 : 0);	536	AvARRAY (av)[BER_CONSTRUCTED] = newSVcacheint (constructed ? 1 : 0);
418	AvARRAY (av)[BER_DATA ] = res;	537	AvARRAY (av)[BER_DATA ] = res;
419		538
420	return newRV_noinc ((SV *)av);	539	return newRV_noinc ((SV *)av);
…		…
516	}	635	}
517		636
518	static void	637	static void
519	put_length (U32 val)	638	put_length (U32 val)
520	{	639	{
521	need (5);	640	need (5 + val);
522	cur = put_length_at (val, cur);	641	cur = put_length_at (val, cur);
523	}	642	}
524		643
525	// return how many bytes the encoded length requires	644	// return how many bytes the encoded length requires
526	static int length_length (U32 val)	645	static int length_length (U32 val)
…		…
529	? 1	648	? 1
530	: 2 + (val > 0xffU) + (val > 0xffffU) + (val > 0xffffffU);	649	: 2 + (val > 0xffU) + (val > 0xffffU) + (val > 0xffffffU);
531	}	650	}
532		651
533	static void	652	static void
534	encode_octet_string (SV *sv)	653	encode_data (const char *ptr, STRLEN len)
535	{	654	{
536	STRLEN len;
537	char *ptr = SvPVbyte (sv, len);
538
539	put_length (len);	655	put_length (len);
540	need (len);
541	memcpy (cur, ptr, len);	656	memcpy (cur, ptr, len);
542	cur += len;	657	cur += len;
543	}	658	}
544		659
545	static void	660	static void
546	encode_integer32 (IV iv)	661	encode_uv (UV uv)
547	{	662	{
548	need (5);	663	}
		664
		665	static void
		666	encode_int (SV *sv)
		667	{
		668	need (8 + 1 + 1); // 64 bit + length + extra 0
		669
		670	if (expect_false (!SvIOK (sv)))
		671	sv_2iv_flags (sv, 0);
549		672
550	U8 *lenb = cur++;	673	U8 *lenb = cur++;
551		674
552	if (iv < 0)	675	if (SvIOK_notUV (sv))
553	{	676	{
		677	IV iv = SvIVX (sv);
		678
		679	if (expect_false (iv < 0))
		680	{
554	// get two's complement bit pattern - works even on hypthetical non-2c machines	681	// get two's complement bit pattern - works even on hypothetical non-2c machines
555	U32 uv = iv;	682	UV uv = iv;
556		683
		684	#if UVSIZE > 4
		685	*cur = uv >> 56; cur += !!(~uv & 0xff80000000000000U);
		686	*cur = uv >> 48; cur += !!(~uv & 0xffff800000000000U);
		687	*cur = uv >> 40; cur += !!(~uv & 0xffffff8000000000U);
		688	*cur = uv >> 32; cur += !!(~uv & 0xffffffff80000000U);
		689	#endif
557	*cur = uv >> 24; cur += !!(~uv & 0xff800000U);	690	*cur = uv >> 24; cur += !!(~uv & 0xffffffffff800000U);
558	*cur = uv >> 16; cur += !!(~uv & 0xffff8000U);	691	*cur = uv >> 16; cur += !!(~uv & 0xffffffffffff8000U);
559	*cur = uv >> 8; cur += !!(~uv & 0xffffff80U);	692	*cur = uv >> 8; cur += !!(~uv & 0xffffffffffffff80U);
560	*cur = uv ; cur += 1;	693	*cur = uv ; cur += 1;
561	}
562	else
563	{
564	cur = iv >> 24; cur += cur > 0;
565	cur = iv >> 16; cur += cur > 0;
566	cur = iv >> 8; cur += cur > 0;
567	*cur = iv ; cur += 1;
568	}
569		694
570	*lenb = cur - lenb - 1;	695	*lenb = cur - lenb - 1;
571	}
572		696
573	static void	697	return;
574	encode_unsigned64 (U64TYPE uv)	698	}
575	{	699	}
576	need (9);
577		700
578	U8 *lenb = cur++;	701	UV uv = SvUV (sv);
579		702
580	cur = uv >> 56; cur += cur > 0;	703	// prepend an extra 0 if the high bit is 1
581	cur = uv >> 48; cur += cur > 0;	704	cur = 0; cur += !!(uv & ((UV)1 << (UVSIZE 8 - 1)));
582	cur = uv >> 40; cur += cur > 0;	705
583	cur = uv >> 32; cur += cur > 0;	706	#if UVSIZE > 4
584	cur = uv >> 24; cur += cur > 0;	707	*cur = uv >> 56; cur += !!(uv & 0xff80000000000000U);
585	cur = uv >> 16; cur += cur > 0;	708	*cur = uv >> 48; cur += !!(uv & 0xffff800000000000U);
586	cur = uv >> 8; cur += cur > 0;	709	*cur = uv >> 40; cur += !!(uv & 0xffffff8000000000U);
		710	*cur = uv >> 32; cur += !!(uv & 0xffffffff80000000U);
		711	#endif
		712	*cur = uv >> 24; cur += !!(uv & 0xffffffffff800000U);
		713	*cur = uv >> 16; cur += !!(uv & 0xffffffffffff8000U);
		714	*cur = uv >> 8; cur += !!(uv & 0xffffffffffffff80U);
587	*cur = uv ; cur += 1;	715	*cur = uv ; cur += 1;
588		716
589	*lenb = cur - lenb - 1;	717	*lenb = cur - lenb - 1;
590	}	718	}
591		719
…		…
631		759
632	return str;	760	return str;
633	}	761	}
634		762
635	static void	763	static void
636	encode_object_identifier (SV *oid)	764	encode_oid (SV *oid, int relative)
637	{	765	{
638	STRLEN slen;	766	STRLEN len;
639	char *ptr = SvPV (oid, slen); // utf8 vs. bytes does not matter	767	char *ptr = SvPV (oid, len); // utf8 vs. bytes does not matter
640		768
641	// we need at most as many octets as the string form	769	// we need at most as many octets as the string form
642	need (slen + 1);	770	need (len + 1);
643	STRLEN mark = len_fixup_mark ();	771	STRLEN mark = len_fixup_mark ();
644		772
645	UV w1, w2;	773	UV w1, w2;
646		774
		775	if (!relative)
		776	{
647	ptr = read_uv (ptr, &w1);	777	ptr = read_uv (ptr, &w1);
648	ptr = read_uv (ptr, &w2);	778	ptr = read_uv (ptr, &w2);
649		779
650	put_w_nocheck (w1 * 40 + w2);	780	put_w_nocheck (w1 * 40 + w2);
		781	}
651		782
652	while (*ptr)	783	while (*ptr)
653	{	784	{
654	ptr = read_uv (ptr, &w1);	785	ptr = read_uv (ptr, &w1);
655	put_w_nocheck (w1);	786	put_w_nocheck (w1);
656	}	787	}
657		788
658	len_fixup (mark);	789	len_fixup (mark);
659	}	790	}
660		791
661	// checkl whether an SV is a BER tuple and returns its AV *	792	// check whether an SV is a BER tuple and returns its AV *
662	static AV *	793	static AV *
663	ber_tuple (SV *tuple)	794	ber_tuple (SV *tuple)
664	{	795	{
665	SV *rv;	796	SV *rv;
666		797
…		…
674	croak ("BER tuple must contain exactly %d elements, not %d", BER_ARRAYSIZE, AvFILL ((AV *)rv) + 1);	805	croak ("BER tuple must contain exactly %d elements, not %d", BER_ARRAYSIZE, AvFILL ((AV *)rv) + 1);
675		806
676	return (AV *)rv;	807	return (AV *)rv;
677	}	808	}
678		809
		810	static void
		811	encode_ucs (SV *data, int chrsize)
		812	{
		813	STRLEN uchars = sv_len_utf8 (data);
		814	STRLEN len;;
		815	char *ptr = SvPVutf8 (data, len);
		816
		817	put_length (uchars * chrsize);
		818
		819	while (uchars--)
		820	{
		821	STRLEN uclen;
		822	UV uchr = utf8_to_uvchr_buf (ptr, ptr + len, &uclen);
		823
		824	ptr += uclen;
		825	len -= uclen;
		826
		827	if (chrsize == 4)
		828	{
		829	*cur++ = uchr >> 24;
		830	*cur++ = uchr >> 16;
		831	}
		832
		833	*cur++ = uchr >> 8;
		834	*cur++ = uchr;
		835	}
		836	}
679	static void	837	static void
680	encode_ber (SV *tuple)	838	encode_ber (SV *tuple)
681	{	839	{
682	AV *av = ber_tuple (tuple);	840	AV *av = ber_tuple (tuple);
683		841
…		…
716	encode_ber (AvARRAY (av)[i]);	874	encode_ber (AvARRAY (av)[i]);
717		875
718	len_fixup (mark);	876	len_fixup (mark);
719	}	877	}
720	else	878	else
721	switch (identifier \| tag)	879	switch (profile_lookup (cur_profile, klass, tag))
722	{	880	{
723	case ASN_NULL:	881	case BER_TYPE_NULL:
724	put_length (0);	882	put_length (0);
725	break;	883	break;
726		884
727	case ASN_OBJECT_IDENTIFIER:	885	case BER_TYPE_BOOL:
		886	put_length (1);
		887	*cur++ = SvTRUE (data) ? 0xff : 0x00;
		888	break;
		889
		890	case BER_TYPE_OID:
728	encode_object_identifier (data);	891	encode_oid (data, 0);
729	break;	892	break;
730		893
731	case ASN_INTEGER32:	894	case BER_TYPE_RELOID:
		895	encode_oid (data, 1);
		896	break;
		897
		898	case BER_TYPE_INT:
732	encode_integer32 (SvIV (data));	899	encode_int (data);
733	break;	900	break;
734		901
735	case ASN_APPLICATION \| SNMP_UNSIGNED32:	902	case BER_TYPE_BYTES:
736	case ASN_APPLICATION \| SNMP_COUNTER32:	903	{
737	case ASN_APPLICATION \| SNMP_TIMETICKS:	904	STRLEN len;
738	case ASN_APPLICATION \| SNMP_COUNTER64:	905	const char *ptr = SvPVbyte (data, len);
739	encode_unsigned64 (SvUV (data));	906	encode_data (ptr, len);
		907	}
740	break;	908	break;
741		909
		910	case BER_TYPE_UTF8:
		911	{
		912	STRLEN len;
		913	const char *ptr = SvPVutf8 (data, len);
		914	encode_data (ptr, len);
		915	}
		916	break;
		917
		918	case BER_TYPE_IPADDRESS:
		919	{
		920	U8 ip[4];
		921	sscanf (SvPV_nolen (data), "%hhu.%hhu.%hhu.%hhu", ip + 0, ip + 1, ip + 2, ip + 3);
		922	encode_data ((const char *)ip, sizeof (ip));
		923	}
		924	break;
		925
		926	case BER_TYPE_UCS2:
		927	encode_ucs (data, 2);
		928	break;
		929
		930	case BER_TYPE_UCS4:
		931	encode_ucs (data, 4);
		932	break;
		933
		934	case BER_TYPE_REAL:
		935	case BER_TYPE_CROAK:
742	default:	936	default:
743	encode_octet_string (data);	937	croak ("unconfigured/unsupported class/tag %d/%d", klass, tag);
744	break;
745	}	938	}
746		939
747	}	940	}
748		941
749	/////////////////////////////////////////////////////////////////////////////	942	/////////////////////////////////////////////////////////////////////////////
…		…
753	PROTOTYPES: ENABLE	946	PROTOTYPES: ENABLE
754		947
755	BOOT:	948	BOOT:
756	{	949	{
757	HV *stash = gv_stashpv ("Convert::BER::XS", 1);	950	HV *stash = gv_stashpv ("Convert::BER::XS", 1);
		951
		952	profile_stash = gv_stashpv ("Convert::BER::XS::Profile", 1);
758		953
759	static const struct {	954	static const struct {
760	const char *name;	955	const char *name;
761	IV iv;	956	IV iv;
762	} *civ, const_iv[] = {	957	} *civ, const_iv[] = {
763	{ "ASN_BOOLEAN", ASN_BOOLEAN },	958	#define const_iv(name) { # name, name },
764	{ "ASN_INTEGER32", ASN_INTEGER32 },	959	const_iv (ASN_BOOLEAN)
765	{ "ASN_BIT_STRING", ASN_BIT_STRING },	960	const_iv (ASN_INTEGER32)
766	{ "ASN_OCTET_STRING", ASN_OCTET_STRING },	961	const_iv (ASN_BIT_STRING)
767	{ "ASN_NULL", ASN_NULL },	962	const_iv (ASN_OCTET_STRING)
768	{ "ASN_OBJECT_IDENTIFIER", ASN_OBJECT_IDENTIFIER },	963	const_iv (ASN_NULL)
769	{ "ASN_TAG_BER", ASN_TAG_BER },	964	const_iv (ASN_OBJECT_IDENTIFIER)
770	{ "ASN_TAG_MASK", ASN_TAG_MASK },	965	const_iv (ASN_OBJECT_DESCRIPTOR)
771	{ "ASN_CONSTRUCTED", ASN_CONSTRUCTED },	966	const_iv (ASN_OID)
772	{ "ASN_UNIVERSAL", ASN_UNIVERSAL >> ASN_CLASS_SHIFT },	967	const_iv (ASN_EXTERNAL)
773	{ "ASN_APPLICATION", ASN_APPLICATION >> ASN_CLASS_SHIFT },	968	const_iv (ASN_REAL)
774	{ "ASN_CONTEXT", ASN_CONTEXT >> ASN_CLASS_SHIFT },	969	const_iv (ASN_SEQUENCE)
775	{ "ASN_PRIVATE", ASN_PRIVATE >> ASN_CLASS_SHIFT },	970	const_iv (ASN_ENUMERATED)
776	{ "ASN_CLASS_MASK", ASN_CLASS_MASK },	971	const_iv (ASN_EMBEDDED_PDV)
777	{ "ASN_CLASS_SHIFT", ASN_CLASS_SHIFT },	972	const_iv (ASN_UTF8_STRING)
778	{ "ASN_SEQUENCE", ASN_SEQUENCE },	973	const_iv (ASN_RELATIVE_OID)
779	{ "SNMP_IPADDRESS", SNMP_IPADDRESS },	974	const_iv (ASN_SET)
780	{ "SNMP_COUNTER32", SNMP_COUNTER32 },	975	const_iv (ASN_NUMERIC_STRING)
781	{ "SNMP_UNSIGNED32", SNMP_UNSIGNED32 },	976	const_iv (ASN_PRINTABLE_STRING)
782	{ "SNMP_TIMETICKS", SNMP_TIMETICKS },	977	const_iv (ASN_TELETEX_STRING)
783	{ "SNMP_OPAQUE", SNMP_OPAQUE },	978	const_iv (ASN_T61_STRING)
784	{ "SNMP_COUNTER64", SNMP_COUNTER64 },	979	const_iv (ASN_VIDEOTEX_STRING)
		980	const_iv (ASN_IA5_STRING)
		981	const_iv (ASN_ASCII_STRING)
		982	const_iv (ASN_UTC_TIME)
		983	const_iv (ASN_GENERALIZED_TIME)
		984	const_iv (ASN_GRAPHIC_STRING)
		985	const_iv (ASN_VISIBLE_STRING)
		986	const_iv (ASN_ISO646_STRING)
		987	const_iv (ASN_GENERAL_STRING)
		988	const_iv (ASN_UNIVERSAL_STRING)
		989	const_iv (ASN_CHARACTER_STRING)
		990	const_iv (ASN_BMP_STRING)
785		991
786	{ "BER_CLASS" , BER_CLASS },	992	const_iv (ASN_UNIVERSAL)
787	{ "BER_TAG" , BER_TAG },	993	const_iv (ASN_APPLICATION)
788	{ "BER_CONSTRUCTED", BER_CONSTRUCTED },	994	const_iv (ASN_CONTEXT)
789	{ "BER_DATA" , BER_DATA },	995	const_iv (ASN_PRIVATE)
		996
		997	const_iv (BER_CLASS)
		998	const_iv (BER_TAG)
		999	const_iv (BER_CONSTRUCTED)
		1000	const_iv (BER_DATA)
		1001
		1002	const_iv (BER_TYPE_BYTES)
		1003	const_iv (BER_TYPE_UTF8)
		1004	const_iv (BER_TYPE_UCS2)
		1005	const_iv (BER_TYPE_UCS4)
		1006	const_iv (BER_TYPE_INT)
		1007	const_iv (BER_TYPE_OID)
		1008	const_iv (BER_TYPE_RELOID)
		1009	const_iv (BER_TYPE_NULL)
		1010	const_iv (BER_TYPE_BOOL)
		1011	const_iv (BER_TYPE_REAL)
		1012	const_iv (BER_TYPE_IPADDRESS)
		1013	const_iv (BER_TYPE_CROAK)
		1014
		1015	const_iv (SNMP_IPADDRESS)
		1016	const_iv (SNMP_COUNTER32)
		1017	const_iv (SNMP_UNSIGNED32)
		1018	const_iv (SNMP_TIMETICKS)
		1019	const_iv (SNMP_OPAQUE)
		1020	const_iv (SNMP_COUNTER64)
790	};	1021	};
791		1022
792	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)	1023	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
793	newCONSTSUB (stash, (char *)civ[-1].name, newSViv (civ[-1].iv));	1024	newCONSTSUB (stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
794	}	1025	}
795		1026
796	SV *	1027	SV *
797	ber_decode (SV *ber)	1028	ber_decode (SV ber, SV profile = &PL_sv_undef)
798	CODE:	1029	CODE:
799	{	1030	{
		1031	cur_profile = SvPROFILE (profile);
800	STRLEN len;	1032	STRLEN len;
801
802	buf = SvPVbyte (ber, len);	1033	buf = SvPVbyte (ber, len);
803	cur = buf;	1034	cur = buf;
804	end = buf + len;	1035	end = buf + len;
805		1036
806	RETVAL = decode_ber ();	1037	RETVAL = decode_ber ();
…		…
881	}	1112	}
882		1113
883	#############################################################################	1114	#############################################################################
884		1115
885	void	1116	void
886	ber_encode (SV *tuple)	1117	ber_encode (SV tuple, SV profile = &PL_sv_undef)
887	PPCODE:	1118	PPCODE:
888	{	1119	{
		1120	cur_profile = SvPROFILE (profile);
889	buf_sv = sv_2mortal (NEWSV (0, 256));	1121	buf_sv = sv_2mortal (NEWSV (0, 256));
890	SvPOK_only (buf_sv);	1122	SvPOK_only (buf_sv);
891	set_buf (buf_sv);	1123	set_buf (buf_sv);
892		1124
893	encode_ber (tuple);	1125	encode_ber (tuple);
…		…
923	AvARRAY (av)[BER_DATA ] = newSVsv (arrayref);	1155	AvARRAY (av)[BER_DATA ] = newSVsv (arrayref);
924	RETVAL = newRV_noinc ((SV *)av);	1156	RETVAL = newRV_noinc ((SV *)av);
925	}	1157	}
926	OUTPUT: RETVAL	1158	OUTPUT: RETVAL
927		1159
		1160	MODULE = Convert::BER::XS PACKAGE = Convert::BER::XS::Profile
		1161
		1162	SV *
		1163	new (SV *klass)
		1164	CODE:
		1165	RETVAL = profile_new ();
		1166	OUTPUT: RETVAL
		1167
		1168	void
		1169	set (SV *profile, int klass, int tag, int type)
		1170	CODE:
		1171	profile_set (SvPROFILE (profile), klass, tag, type);
		1172
		1173	IV
		1174	get (SV *profile, int klass, int tag)
		1175	CODE:
		1176	RETVAL = profile_lookup (SvPROFILE (profile), klass, tag);
		1177	OUTPUT: RETVAL
		1178
		1179	void
		1180	_set_default (SV *profile)
		1181	CODE:
		1182	default_profile = SvPROFILE (profile);
		1183
		1184

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Comparing Convert-BER-XS/XS.xs (file contents): Revision 1.4 by root, Fri Apr 19 20:38:38 2019 UTC vs. Revision 1.9 by root, Sat Apr 20 02:12:27 2019 UTC

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Comparing Convert-BER-XS/XS.xs (file contents):
Revision 1.4 by root, Fri Apr 19 20:38:38 2019 UTC vs.
Revision 1.9 by root, Sat Apr 20 02:12:27 2019 UTC