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

Comparing Convert-BER-XS/XS.xs (file contents):
Revision 1.9 by root, Sat Apr 20 02:12:27 2019 UTC vs.
Revision 1.27 by root, Mon Apr 22 11:01:49 2019 UTC

…		…
1	#include "EXTERN.h"	1	#include "EXTERN.h"
2	#include "perl.h"	2	#include "perl.h"
3	#include "XSUB.h"	3	#include "XSUB.h"
4		4
5	// C99 required	5	// C99 required!
		6	// this is not just for comments, but also for
		7	// integer constant semantics,
		8	// sscanf format modifiers and more.
6		9
7	enum {	10	enum {
8	// ASN_TAG	11	// ASN_TAG
9	ASN_BOOLEAN = 0x01,	12	ASN_BOOLEAN = 0x01,
10	ASN_INTEGER32 = 0x02,	13	ASN_INTEGER = 0x02,
11	ASN_BIT_STRING = 0x03,	14	ASN_BIT_STRING = 0x03,
12	ASN_OCTET_STRING = 0x04,	15	ASN_OCTET_STRING = 0x04,
13	ASN_NULL = 0x05,	16	ASN_NULL = 0x05,
14	ASN_OBJECT_IDENTIFIER = 0x06,	17	ASN_OBJECT_IDENTIFIER = 0x06,
15	ASN_OID = 0x06,	18	ASN_OID = 0x06,
55	ASN_CLASS_SHIFT = 6,	58	ASN_CLASS_SHIFT = 6,
56		59
57	// ASN_APPLICATION SNMP	60	// ASN_APPLICATION SNMP
58	SNMP_IPADDRESS = 0x00,	61	SNMP_IPADDRESS = 0x00,
59	SNMP_COUNTER32 = 0x01,	62	SNMP_COUNTER32 = 0x01,
		63	SNMP_GAUGE32 = 0x02,
60	SNMP_UNSIGNED32 = 0x02,	64	SNMP_UNSIGNED32 = 0x02,
61	SNMP_TIMETICKS = 0x03,	65	SNMP_TIMETICKS = 0x03,
62	SNMP_OPAQUE = 0x04,	66	SNMP_OPAQUE = 0x04,
63	SNMP_COUNTER64 = 0x06,	67	SNMP_COUNTER64 = 0x06,
64	};	68	};
…		…
77	BER_TYPE_IPADDRESS,	81	BER_TYPE_IPADDRESS,
78	BER_TYPE_CROAK,	82	BER_TYPE_CROAK,
79	};	83	};
80		84
81	enum {	85	enum {
82	BER_CLASS = 0,	86	BER_CLASS = 0,
83	BER_TAG = 1,	87	BER_TAG = 1,
84	BER_CONSTRUCTED = 2,	88	BER_FLAGS = 2,
85	BER_DATA = 3,	89	BER_DATA = 3,
86	BER_ARRAYSIZE	90	BER_ARRAYSIZE
87	};	91	};
88		92
89	#define MAX_OID_STRLEN 4096	93	#define MAX_OID_STRLEN 4096
90		94
…		…
137	{	141	{
138	if (!SvOK (profile))	142	if (!SvOK (profile))
139	return default_profile;	143	return default_profile;
140		144
141	if (!SvROK (profile))	145	if (!SvROK (profile))
142	croak ("invalid profile");	146	croak ("Convert::BER::XS::Profile expected");
143		147
144	profile = SvRV (profile);	148	profile = SvRV (profile);
145		149
146	if (SvSTASH (profile) != profile_stash)	150	if (SvSTASH (profile) != profile_stash)
147	croak ("invalid profile object");	151	croak ("Convert::BER::XS::Profile expected");
148		152
149	return (void *)profile;	153	return (void *)profile;
150	}	154	}
151		155
152	static int	156	static int
…		…
159	return BER_TYPE_BYTES;	163	return BER_TYPE_BYTES;
160		164
161	return SvPVX (sv)[idx];	165	return SvPVX (sv)[idx];
162	}	166	}
163		167
164	static int	168	static void
165	profile_set (profile_type *profile, int klass, int tag, int type)	169	profile_set (profile_type *profile, int klass, int tag, int type)
166	{	170	{
167	SV sv = (SV )profile;	171	SV sv = (SV )profile;
168	U32 idx = (tag << 2) + klass;	172	U32 idx = (tag << 2) + klass;
169	STRLEN oldlen = SvCUR (sv);	173	STRLEN oldlen = SvCUR (sv);
…		…
178		182
179	SvPVX (sv)[idx] = type;	183	SvPVX (sv)[idx] = type;
180	}	184	}
181		185
182	static SV *	186	static SV *
183	profile_new ()	187	profile_new (void)
184	{	188	{
185	SV *sv = newSVpvn ("", 0);	189	SV *sv = newSVpvn ("", 0);
186		190
187	static const struct {	191	static const struct {
188	int klass;	192	int klass;
189	int tag;	193	int tag;
190	int type;	194	int type;
191	} *celem, default_map[] = {	195	} *celem, default_map[] = {
192	{ ASN_UNIVERSAL, ASN_BOOLEAN , BER_TYPE_BOOL },	196	{ ASN_UNIVERSAL, ASN_BOOLEAN , BER_TYPE_BOOL },
193	{ ASN_UNIVERSAL, ASN_INTEGER32 , BER_TYPE_INT },	197	{ ASN_UNIVERSAL, ASN_INTEGER , BER_TYPE_INT },
194	{ ASN_UNIVERSAL, ASN_NULL , BER_TYPE_NULL },	198	{ ASN_UNIVERSAL, ASN_NULL , BER_TYPE_NULL },
195	{ ASN_UNIVERSAL, ASN_OBJECT_IDENTIFIER, BER_TYPE_OID },	199	{ 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 },	200	{ ASN_UNIVERSAL, ASN_RELATIVE_OID , BER_TYPE_RELOID },
198	{ ASN_UNIVERSAL, ASN_REAL , BER_TYPE_REAL },	201	{ ASN_UNIVERSAL, ASN_REAL , BER_TYPE_REAL },
		202	{ ASN_UNIVERSAL, ASN_ENUMERATED , BER_TYPE_INT },
199	{ ASN_UNIVERSAL, ASN_UTF8_STRING , BER_TYPE_UTF8 },	203	{ ASN_UNIVERSAL, ASN_UTF8_STRING , BER_TYPE_UTF8 },
200	{ ASN_UNIVERSAL, ASN_BMP_STRING , BER_TYPE_UCS2 },	204	{ ASN_UNIVERSAL, ASN_BMP_STRING , BER_TYPE_UCS2 },
201	{ ASN_UNIVERSAL, ASN_UNIVERSAL_STRING , BER_TYPE_UCS4 },	205	{ ASN_UNIVERSAL, ASN_UNIVERSAL_STRING , BER_TYPE_UCS4 },
202	};	206	};
203		207
204	for (celem = default_map + sizeof (default_map) / sizeof (default_map [0]); celem > default_map; celem--)	208	for (celem = default_map + sizeof (default_map) / sizeof (default_map [0]); celem-- > default_map; )
205	profile_set ((void *)sv, celem->klass, celem->tag, celem->type);	209	profile_set ((profile_type *)sv, celem->klass, celem->tag, celem->type);
206		210
207	return sv_bless (newRV_noinc (sv), profile_stash);	211	return sv_bless (newRV_noinc (sv), profile_stash);
208	}	212	}
209		213
210	/////////////////////////////////////////////////////////////////////////////	214	/////////////////////////////////////////////////////////////////////////////
…		…
223	error ("unexpected end of message buffer");	227	error ("unexpected end of message buffer");
224	}	228	}
225		229
226	// get_* functions fetch something from the buffer	230	// get_* functions fetch something from the buffer
227	// decode_* functions use get_* fun ctions to decode ber values	231	// decode_* functions use get_* fun ctions to decode ber values
		232
		233	// get single octet
		234	static U8
		235	get_u8 (void)
		236	{
		237	if (cur == end)
		238	error ("unexpected end of message buffer");
		239
		240	return *cur++;
		241	}
228		242
229	// get n octets	243	// get n octets
230	static U8 *	244	static U8 *
231	get_n (UV count)	245	get_n (UV count)
232	{	246	{
…		…
234	U8 *res = cur;	248	U8 *res = cur;
235	cur += count;	249	cur += count;
236	return res;	250	return res;
237	}	251	}
238		252
239	// get single octet
240	static U8
241	get_u8 (void)
242	{
243	if (cur == end)
244	error ("unexpected end of message buffer");
245
246	return *cur++;
247	}
248
249	// get ber-encoded integer (i.e. pack "w")	253	// get ber-encoded integer (i.e. pack "w")
250	static U32	254	static UV
251	get_w (void)	255	get_w (void)
252	{	256	{
253	U32 res = 0;	257	UV res = 0;
		258	U8 c = get_u8 ();
		259
		260	if (expect_false (c == 0x80))
		261	error ("illegal BER padding (X.690 8.1.2.4.2, 8.19.2)");
254		262
255	for (;;)	263	for (;;)
256	{	264	{
257	U8 c = get_u8 ();	265	if (expect_false (res >> UVSIZE * 8 - 7))
		266	error ("BER variable length integer overflow");
		267
258	res = (res << 7) \| (c & 0x7f);	268	res = (res << 7) \| (c & 0x7f);
259		269
260	if (!(c & 0x80))	270	if (!(c & 0x80))
261	return res;	271	return res;
262	}
263	}
264		272
		273	c = get_u8 ();
		274	}
		275	}
		276
265	static U32	277	static UV
266	get_length (void)	278	get_length (void)
267	{	279	{
268	U32 res = get_u8 ();	280	UV res = get_u8 ();
269		281
270	if (res & 0x80)	282	if (res & 0x80)
271	{	283	{
272	int cnt = res & 0x7f;	284	int cnt = res & 0x7f;
273	res = 0;	285	res = 0;
274		286
275	switch (cnt)	287	switch (cnt)
276	{	288	{
277	case 0:	289	case 0:
278	error ("indefinite ASN.1 lengths not supported");	290	error ("indefinite BER value lengths not supported");
279	return 0;	291
		292	case 0x7f:
		293	error ("BER reserved value in length (X.690 8.1.3.5)");
280		294
281	default:	295	default:
282	error ("ASN.1 length too long");	296	error ("BER value length too long (must fit into UV)");
283	return 0;
284		297
		298	#if UVSIZE > 4
		299	case 8: res = (res << 8) \| get_u8 ();
		300	case 7: res = (res << 8) \| get_u8 ();
		301	case 6: res = (res << 8) \| get_u8 ();
		302	case 5: res = (res << 8) \| get_u8 ();
		303	#endif
285	case 4: res = (res << 8) \| get_u8 ();	304	case 4: res = (res << 8) \| get_u8 ();
286	case 3: res = (res << 8) \| get_u8 ();	305	case 3: res = (res << 8) \| get_u8 ();
287	case 2: res = (res << 8) \| get_u8 ();	306	case 2: res = (res << 8) \| get_u8 ();
288	case 1: res = (res << 8) \| get_u8 ();	307	case 1: res = (res << 8) \| get_u8 ();
289	}	308	}
…		…
291		310
292	return res;	311	return res;
293	}	312	}
294		313
295	static SV *	314	static SV *
296	decode_int ()	315	decode_int (void)
297	{	316	{
298	int len = get_length ();	317	UV len = get_length ();
299		318
300	if (len <= 0)	319	if (!len)
301	{	320	error ("invalid BER_TYPE_INT length zero (X.690 8.3.1)");
302	error ("integer length equal to zero");
303	return 0;
304	}
305		321
306	U8 *data = get_n (len);	322	U8 *data = get_n (len);
307		323
		324	if (expect_false (len > 1))
		325	{
		326	U16 mask = (data [0] << 8) \| data [1] & 0xff80;
		327
		328	if (expect_false (mask == 0xff80 \|\| mask == 0x0000))
		329	error ("illegal padding in BER_TYPE_INT (X.690 8.3.2)");
		330	}
		331
308	int negative = data [0] & 0x80;	332	int negative = data [0] & 0x80;
309		333
310	UV val = negative ? -1 : 0; // copy signbit to all bits	334	UV val = negative ? -1 : 0; // copy signbit to all bits
		335
		336	if (len > UVSIZE + (!negative && !*data))
		337	error ("BER_TYPE_INT overflow");
311		338
312	do	339	do
313	val = (val << 8) \| *data++;	340	val = (val << 8) \| *data++;
314	while (--len);	341	while (--len);
315		342
…		…
319	}	346	}
320		347
321	static SV *	348	static SV *
322	decode_data (void)	349	decode_data (void)
323	{	350	{
324	U32 len = get_length ();	351	UV len = get_length ();
325	U8 *data = get_n (len);
326	return newSVpvn ((char *)data, len);	352	return newSVpvn ((char *)get_n (len), len);
327	}	353	}
328		354
329	// gelper for decode_object_identifier	355	// helper for decode_object_identifier
330	static char *	356	static char *
331	write_uv (char *buf, U32 u)	357	write_uv (char *buf, UV u)
332	{	358	{
333	// the one-digit case is absolutely predominant, so this pays off (hopefully)	359	// the one-digit case is absolutely predominant, so this pays off (hopefully)
334	if (expect_true (u < 10))	360	if (expect_true (u < 10))
335	*buf++ = u + '0';	361	*buf++ = u + '0';
336	else	362	else
337	{	363	{
		364	// this could be done much faster using branchless fixed-point arithmetics
338	char *beg = buf;	365	char *beg = buf;
339		366
340	do	367	do
341	{	368	{
342	*buf++ = u % 10 + '0';	369	*buf++ = u % 10 + '0';
343	u /= 10;	370	u /= 10;
344	}	371	}
345	while (u);	372	while (u);
346		373
347	// reverse digits	374	// reverse digits
348	for (char *ptr = buf; --ptr != beg; ++beg)	375	char *ptr = buf;
		376	while (--ptr > beg)
349	{	377	{
350	char c = *ptr;	378	char c = *ptr;
351	ptr = beg;	379	ptr = beg;
352	*beg = c;	380	*beg = c;
		381	++beg;
353	}	382	}
354	}	383	}
355		384
356	return buf;	385	return buf;
357	}	386	}
358		387
359	static SV *	388	static SV *
360	decode_oid (int relative)	389	decode_oid (int relative)
361	{	390	{
362	U32 len = get_length ();	391	UV len = get_length ();
363		392
364	if (len <= 0)	393	if (len <= 0)
365	{	394	{
366	error ("OBJECT IDENTIFIER length equal to zero");	395	error ("BER_TYPE_OID length must not be zero");
367	return &PL_sv_undef;	396	return &PL_sv_undef;
368	}	397	}
369		398
370	U8 *end = cur + len;	399	U8 *end = cur + len;
371	U32 w = get_w ();	400	UV w = get_w ();
372		401
373	static char oid[MAX_OID_STRLEN]; // must be static	402	static char oid[MAX_OID_STRLEN]; // static, because too large for stack
374	char *app = oid;	403	char *app = oid;
375		404
376	if (relative)	405	if (relative)
377	app = write_uv (app, w);	406	app = write_uv (app, w);
378	else	407	else
379	{	408	{
		409	UV w1, w2;
		410
		411	if (w < 2 * 40)
		412	(w1 = w / 40), (w2 = w % 40);
		413	else
		414	(w1 = 2), (w2 = w - 2 * 40);
		415
380	app = write_uv (app, (U8)w / 40);	416	app = write_uv (app, w1);
381	*app++ = '.';	417	*app++ = '.';
382	app = write_uv (app, (U8)w % 40);	418	app = write_uv (app, w2);
		419	}
		420
		421	while (cur < end)
383	}	422	{
384
385	// we assume an oid component is never > 64 bytes	423	// we assume an oid component is never > 64 digits
386	while (cur < end && oid + sizeof (oid) - app > 64)	424	if (oid + sizeof (oid) - app < 64)
387	{	425	croak ("BER_TYPE_OID to long to decode");
		426
388	w = get_w ();	427	w = get_w ();
389	*app++ = '.';	428	*app++ = '.';
390	app = write_uv (app, w);	429	app = write_uv (app, w);
391	}	430	}
392		431
…		…
397	static SV *	436	static SV *
398	decode_ucs (int chrsize)	437	decode_ucs (int chrsize)
399	{	438	{
400	SV *res = NEWSV (0, 0);	439	SV *res = NEWSV (0, 0);
401		440
402	U32 len = get_length ();	441	UV len = get_length ();
403		442
404	if (len & (chrsize - 1))	443	if (len & (chrsize - 1))
405	croak ("BER_TYPE_UCS has an invalid number of octets (%d)", len);	444	croak ("BER_TYPE_UCS has an invalid number of octets (%d)", len);
406		445
407	while (len)	446	while (len)
…		…
428		467
429	return res;	468	return res;
430	}	469	}
431		470
432	static SV *	471	static SV *
433	decode_ber ()	472	decode_ber (void)
434	{	473	{
435	int identifier = get_u8 ();	474	int identifier = get_u8 ();
436		475
437	SV *res;	476	SV *res;
438		477
…		…
441	int tag = identifier & ASN_TAG_MASK;	480	int tag = identifier & ASN_TAG_MASK;
442		481
443	if (tag == ASN_TAG_BER)	482	if (tag == ASN_TAG_BER)
444	tag = get_w ();	483	tag = get_w ();
445		484
446	if (tag == ASN_TAG_BER)
447	tag = get_w ();
448
449	if (constructed)	485	if (constructed)
450	{	486	{
451	U32 len = get_length ();	487	UV len = get_length ();
452	U32 seqend = (cur - buf) + len;	488	UV seqend = (cur - buf) + len;
453	AV av = (AV )sv_2mortal ((SV *)newAV ());	489	AV av = (AV )sv_2mortal ((SV *)newAV ());
454		490
455	while (cur < buf + seqend)	491	while (cur < buf + seqend)
456	av_push (av, decode_ber ());	492	av_push (av, decode_ber ());
457		493
458	if (cur > buf + seqend)	494	if (cur > buf + seqend)
459	croak ("constructed type %02x overflow (%x %x)\n", identifier, cur - buf, seqend);	495	croak ("CONSTRUCTED type %02x length overflow (0x%x 0x%x)\n", identifier, (int)(cur - buf), (int)seqend);
460		496
461	res = newRV_inc ((SV *)av);	497	res = newRV_inc ((SV *)av);
462	}	498	}
463	else	499	else
464	switch (profile_lookup (cur_profile, klass, tag))	500	switch (profile_lookup (cur_profile, klass, tag))
465	{	501	{
466	case BER_TYPE_NULL:	502	case BER_TYPE_NULL:
		503	{
		504	UV len = get_length ();
		505
		506	if (len)
		507	croak ("BER_TYPE_NULL value with non-zero length %d encountered (X.690 8.8.2)", len);
		508
467	res = &PL_sv_undef;	509	res = &PL_sv_undef;
		510	}
468	break;	511	break;
469		512
470	case BER_TYPE_BOOL:	513	case BER_TYPE_BOOL:
471	{	514	{
472	U32 len = get_length ();	515	UV len = get_length ();
473		516
474	if (len != 1)	517	if (len != 1)
475	croak ("BER_TYPE_BOOLEAN type with invalid length %d encountered", len);	518	croak ("BER_TYPE_BOOLEAN value with invalid length %d encountered (X.690 8.2.1)", len);
476		519
477	res = newSVcacheint (get_u8 () ? 0 : 1);	520	res = newSVcacheint (!!get_u8 ());
478	}	521	}
479	break;	522	break;
480		523
481	case BER_TYPE_OID:	524	case BER_TYPE_OID:
482	res = decode_oid (0);	525	res = decode_oid (0);
…		…
499	res = decode_data ();	542	res = decode_data ();
500	break;	543	break;
501		544
502	case BER_TYPE_IPADDRESS:	545	case BER_TYPE_IPADDRESS:
503	{	546	{
504	U32 len = get_length ();	547	UV len = get_length ();
505		548
506	if (len != 4)	549	if (len != 4)
507	croak ("BER_TYPE_IPADDRESS type with invalid length %d encountered", len);	550	croak ("BER_TYPE_IPADDRESS type with invalid length %d encountered (RFC 2578 7.1.5)", len);
508		551
509	U8 c1 = get_u8 ();	552	U8 c1 = get_u8 ();
510	U8 c2 = get_u8 ();	553	U8 c2 = get_u8 ();
511	U8 c3 = get_u8 ();	554	U8 c3 = get_u8 ();
512	U8 c4 = get_u8 ();	555	U8 c4 = get_u8 ();
…		…
522	case BER_TYPE_UCS4:	565	case BER_TYPE_UCS4:
523	res = decode_ucs (4);	566	res = decode_ucs (4);
524	break;	567	break;
525		568
526	case BER_TYPE_REAL:	569	case BER_TYPE_REAL:
		570	error ("BER_TYPE_REAL not implemented");
		571
527	case BER_TYPE_CROAK:	572	case BER_TYPE_CROAK:
		573	croak ("class/tag %d/%d mapped to BER_TYPE_CROAK", klass, tag);
		574
528	default:	575	default:
529	croak ("unconfigured/unsupported class/tag %d/%d", klass, tag);	576	croak ("unconfigured/unsupported class/tag %d/%d", klass, tag);
530	}	577	}
531		578
532	AV *av = newAV ();	579	AV *av = newAV ();
533	av_fill (av, BER_ARRAYSIZE - 1);	580	av_fill (av, BER_ARRAYSIZE - 1);
534	AvARRAY (av)[BER_CLASS ] = newSVcacheint (klass);	581	AvARRAY (av)[BER_CLASS] = newSVcacheint (klass);
535	AvARRAY (av)[BER_TAG ] = newSVcacheint (tag);	582	AvARRAY (av)[BER_TAG ] = newSVcacheint (tag);
536	AvARRAY (av)[BER_CONSTRUCTED] = newSVcacheint (constructed ? 1 : 0);	583	AvARRAY (av)[BER_FLAGS] = newSVcacheint (constructed ? 1 : 0);
537	AvARRAY (av)[BER_DATA ] = res;	584	AvARRAY (av)[BER_DATA ] = res;
538		585
539	return newRV_noinc ((SV *)av);	586	return newRV_noinc ((SV *)av);
540	}	587	}
541		588
542	/////////////////////////////////////////////////////////////////////////////	589	/////////////////////////////////////////////////////////////////////////////
…		…
547	strlen_sum (STRLEN l1, STRLEN l2)	594	strlen_sum (STRLEN l1, STRLEN l2)
548	{	595	{
549	size_t sum = l1 + l2;	596	size_t sum = l1 + l2;
550		597
551	if (sum < (size_t)l2 \|\| sum != (size_t)(STRLEN)sum)	598	if (sum < (size_t)l2 \|\| sum != (size_t)(STRLEN)sum)
552	croak ("JSON::XS: string size overflow");	599	croak ("Convert::BER::XS: string size overflow");
553		600
554	return sum;	601	return sum;
555	}	602	}
556		603
557	static void	604	static void
558	set_buf (SV *sv)	605	set_buf (SV *sv)
559	{	606	{
560	STRLEN len;	607	STRLEN len;
561	buf_sv = sv;	608	buf_sv = sv;
562	buf = SvPVbyte (buf_sv, len);	609	buf = (U8 *)SvPVbyte (buf_sv, len);
563	cur = buf;	610	cur = buf;
564	end = buf + len;	611	end = buf + len;
565	}	612	}
566		613
567	/* similar to SvGROW, but somewhat safer and guarantees exponential realloc strategy */	614	/* similar to SvGROW, but somewhat safer and guarantees exponential realloc strategy */
…		…
581	need (STRLEN len)	628	need (STRLEN len)
582	{	629	{
583	if (expect_false ((uintptr_t)(end - cur) < len))	630	if (expect_false ((uintptr_t)(end - cur) < len))
584	{	631	{
585	STRLEN pos = cur - buf;	632	STRLEN pos = cur - buf;
586	buf = my_sv_grow (buf_sv, pos, len);	633	buf = (U8 *)my_sv_grow (buf_sv, pos, len);
587	cur = buf + pos;	634	cur = buf + pos;
588	end = buf + SvLEN (buf_sv) - 1;	635	end = buf + SvLEN (buf_sv) - 1;
589	}	636	}
590	}	637	}
591		638
…		…
595	need (1);	642	need (1);
596	*cur++ = val;	643	*cur++ = val;
597	}	644	}
598		645
599	static void	646	static void
600	put_w_nocheck (U32 val)	647	put_w_nocheck (UV val)
601	{	648	{
		649	#if UVSIZE > 4
		650	cur = (val >> 7 9) \| 0x80; cur += val >= ((UV)1 << (7 * 9));
		651	cur = (val >> 7 8) \| 0x80; cur += val >= ((UV)1 << (7 * 8));
		652	cur = (val >> 7 7) \| 0x80; cur += val >= ((UV)1 << (7 * 7));
		653	cur = (val >> 7 6) \| 0x80; cur += val >= ((UV)1 << (7 * 6));
		654	cur = (val >> 7 5) \| 0x80; cur += val >= ((UV)1 << (7 * 5));
		655	#endif
602	cur = (val >> 7 4) \| 0x80; cur += val >= (1 << (7 * 4));	656	cur = (val >> 7 4) \| 0x80; cur += val >= ((UV)1 << (7 * 4));
603	cur = (val >> 7 3) \| 0x80; cur += val >= (1 << (7 * 3));	657	cur = (val >> 7 3) \| 0x80; cur += val >= ((UV)1 << (7 * 3));
604	cur = (val >> 7 2) \| 0x80; cur += val >= (1 << (7 * 2));	658	cur = (val >> 7 2) \| 0x80; cur += val >= ((UV)1 << (7 * 2));
605	cur = (val >> 7 1) \| 0x80; cur += val >= (1 << (7 * 1));	659	cur = (val >> 7 1) \| 0x80; cur += val >= ((UV)1 << (7 * 1));
606	*cur = val & 0x7f; cur += 1;	660	*cur = val & 0x7f; cur += 1;
607	}	661	}
608		662
609	static void	663	static void
610	put_w (U32 val)	664	put_w (UV val)
611	{	665	{
612	need (5); // we only handle up to 5 bytes	666	need (5); // we only handle up to 5 bytes
613		667
614	put_w_nocheck (val);	668	put_w_nocheck (val);
615	}	669	}
616		670
617	static U8 *	671	static U8 *
618	put_length_at (U32 val, U8 *cur)	672	put_length_at (UV val, U8 *cur)
619	{	673	{
620	if (val < 0x7fU)	674	if (val < 0x7fU)
621	*cur++ = val;	675	*cur++ = val;
622	else	676	else
623	{	677	{
624	U8 *lenb = cur++;	678	U8 *lenb = cur++;
625		679
		680	#if UVSIZE > 4
		681	cur = val >> 56; cur += cur > 0;
		682	cur = val >> 48; cur += cur > 0;
		683	cur = val >> 40; cur += cur > 0;
		684	cur = val >> 32; cur += cur > 0;
		685	#endif
626	cur = val >> 24; cur += cur > 0;	686	cur = val >> 24; cur += cur > 0;
627	cur = val >> 16; cur += cur > 0;	687	cur = val >> 16; cur += cur > 0;
628	cur = val >> 8; cur += cur > 0;	688	cur = val >> 8; cur += cur > 0;
629	*cur = val ; cur += 1;	689	*cur = val ; cur += 1;
630		690
…		…
633		693
634	return cur;	694	return cur;
635	}	695	}
636		696
637	static void	697	static void
638	put_length (U32 val)	698	put_length (UV val)
639	{	699	{
640	need (5 + val);	700	need (5 + val);
641	cur = put_length_at (val, cur);	701	cur = put_length_at (val, cur);
642	}	702	}
643		703
644	// return how many bytes the encoded length requires	704	// return how many bytes the encoded length requires
645	static int length_length (U32 val)	705	static int length_length (UV val)
646	{	706	{
647	return val < 0x7fU	707	return val < 0x7fU
648	? 1	708	? 1
649	: 2 + (val > 0xffU) + (val > 0xffffU) + (val > 0xffffffU);	709	: 2
		710	+ (val > 0xffU)
		711	+ (val > 0xffffU)
		712	+ (val > 0xffffffU)
		713	#if UVSIZE > 4
		714	+ (val > 0xffffffffU)
		715	+ (val > 0xffffffffffU)
		716	+ (val > 0xffffffffffffU)
		717	+ (val > 0xffffffffffffffU)
		718	#endif
		719	;
650	}	720	}
651		721
652	static void	722	static void
653	encode_data (const char *ptr, STRLEN len)	723	encode_data (const char *ptr, STRLEN len)
654	{	724	{
…		…
716		786
717	*lenb = cur - lenb - 1;	787	*lenb = cur - lenb - 1;
718	}	788	}
719		789
720	// we don't know the length yet, so we optimistically	790	// we don't know the length yet, so we optimistically
721	// assume the length will need one octet later. if that	791	// assume the length will need one octet later. If that
722	// turns out to be wrong, we memove as needed.	792	// turns out to be wrong, we memmove as needed.
723	// mark the beginning	793	// mark the beginning
724	static STRLEN	794	static STRLEN
725	len_fixup_mark ()	795	len_fixup_mark (void)
726	{	796	{
727	return cur++ - buf;	797	return cur++ - buf;
728	}	798	}
729		799
730	// patch up the length	800	// patch up the length
…		…
817	put_length (uchars * chrsize);	887	put_length (uchars * chrsize);
818		888
819	while (uchars--)	889	while (uchars--)
820	{	890	{
821	STRLEN uclen;	891	STRLEN uclen;
822	UV uchr = utf8_to_uvchr_buf (ptr, ptr + len, &uclen);	892	UV uchr = utf8_to_uvchr_buf ((U8 )ptr, (U8 )ptr + len, &uclen);
823		893
824	ptr += uclen;	894	ptr += uclen;
825	len -= uclen;	895	len -= uclen;
826		896
827	if (chrsize == 4)	897	if (chrsize == 4)
…		…
839	{	909	{
840	AV *av = ber_tuple (tuple);	910	AV *av = ber_tuple (tuple);
841		911
842	int klass = SvIV (AvARRAY (av)[BER_CLASS]);	912	int klass = SvIV (AvARRAY (av)[BER_CLASS]);
843	int tag = SvIV (AvARRAY (av)[BER_TAG]);	913	int tag = SvIV (AvARRAY (av)[BER_TAG]);
844	int constructed = SvIV (AvARRAY (av)[BER_CONSTRUCTED]) ? ASN_CONSTRUCTED : 0;	914	int constructed = SvIV (AvARRAY (av)[BER_FLAGS]) & 1 ? ASN_CONSTRUCTED : 0;
845	SV *data = AvARRAY (av)[BER_DATA];	915	SV *data = AvARRAY (av)[BER_DATA];
846		916
847	int identifier = (klass << ASN_CLASS_SHIFT) \| constructed;	917	int identifier = (klass << ASN_CLASS_SHIFT) \| constructed;
848		918
849	if (expect_false (tag >= ASN_TAG_BER))	919	if (expect_false (tag >= ASN_TAG_BER))
…		…
860	// and adjust later	930	// and adjust later
861	need (1);	931	need (1);
862	STRLEN mark = len_fixup_mark ();	932	STRLEN mark = len_fixup_mark ();
863		933
864	if (expect_false (!SvROK (data) \|\| SvTYPE (SvRV (data)) != SVt_PVAV))	934	if (expect_false (!SvROK (data) \|\| SvTYPE (SvRV (data)) != SVt_PVAV))
865	croak ("BER constructed data must be array-reference");	935	croak ("BER CONSTRUCTED data must be array-reference");
866		936
867	AV av = (AV )SvRV (data);	937	AV av = (AV )SvRV (data);
868	int fill = AvFILL (av);	938	int fill = AvFILL (av);
869		939
870	if (expect_false (SvRMAGICAL (av)))	940	if (expect_false (SvRMAGICAL (av)))
871	croak ("BER constructed data must not be tied");	941	croak ("BER CONSTRUCTED data must not be tied");
872		942
		943	int i;
873	for (int i = 0; i <= fill; ++i)	944	for (i = 0; i <= fill; ++i)
874	encode_ber (AvARRAY (av)[i]);	945	encode_ber (AvARRAY (av)[i]);
875		946
876	len_fixup (mark);	947	len_fixup (mark);
877	}	948	}
878	else	949	else
…		…
882	put_length (0);	953	put_length (0);
883	break;	954	break;
884		955
885	case BER_TYPE_BOOL:	956	case BER_TYPE_BOOL:
886	put_length (1);	957	put_length (1);
887	*cur++ = SvTRUE (data) ? 0xff : 0x00;	958	*cur++ = SvTRUE (data) ? 0xff : 0x00; // 0xff = DER/CER
888	break;	959	break;
889		960
890	case BER_TYPE_OID:	961	case BER_TYPE_OID:
891	encode_oid (data, 0);	962	encode_oid (data, 0);
892	break;	963	break;
…		…
930	case BER_TYPE_UCS4:	1001	case BER_TYPE_UCS4:
931	encode_ucs (data, 4);	1002	encode_ucs (data, 4);
932	break;	1003	break;
933		1004
934	case BER_TYPE_REAL:	1005	case BER_TYPE_REAL:
		1006	croak ("BER_TYPE_REAL not implemented");
		1007
935	case BER_TYPE_CROAK:	1008	case BER_TYPE_CROAK:
		1009	croak ("class/tag %d/%d mapped to BER_TYPE_CROAK", klass, tag);
		1010
936	default:	1011	default:
937	croak ("unconfigured/unsupported class/tag %d/%d", klass, tag);	1012	croak ("unconfigured/unsupported class/tag %d/%d", klass, tag);
938	}	1013	}
939		1014
940	}	1015	}
…		…
955	const char *name;	1030	const char *name;
956	IV iv;	1031	IV iv;
957	} *civ, const_iv[] = {	1032	} *civ, const_iv[] = {
958	#define const_iv(name) { # name, name },	1033	#define const_iv(name) { # name, name },
959	const_iv (ASN_BOOLEAN)	1034	const_iv (ASN_BOOLEAN)
960	const_iv (ASN_INTEGER32)	1035	const_iv (ASN_INTEGER)
961	const_iv (ASN_BIT_STRING)	1036	const_iv (ASN_BIT_STRING)
962	const_iv (ASN_OCTET_STRING)	1037	const_iv (ASN_OCTET_STRING)
963	const_iv (ASN_NULL)	1038	const_iv (ASN_NULL)
964	const_iv (ASN_OBJECT_IDENTIFIER)	1039	const_iv (ASN_OBJECT_IDENTIFIER)
965	const_iv (ASN_OBJECT_DESCRIPTOR)	1040	const_iv (ASN_OBJECT_DESCRIPTOR)
…		…
994	const_iv (ASN_CONTEXT)	1069	const_iv (ASN_CONTEXT)
995	const_iv (ASN_PRIVATE)	1070	const_iv (ASN_PRIVATE)
996		1071
997	const_iv (BER_CLASS)	1072	const_iv (BER_CLASS)
998	const_iv (BER_TAG)	1073	const_iv (BER_TAG)
999	const_iv (BER_CONSTRUCTED)	1074	const_iv (BER_FLAGS)
1000	const_iv (BER_DATA)	1075	const_iv (BER_DATA)
1001		1076
1002	const_iv (BER_TYPE_BYTES)	1077	const_iv (BER_TYPE_BYTES)
1003	const_iv (BER_TYPE_UTF8)	1078	const_iv (BER_TYPE_UTF8)
1004	const_iv (BER_TYPE_UCS2)	1079	const_iv (BER_TYPE_UCS2)
…		…
1012	const_iv (BER_TYPE_IPADDRESS)	1087	const_iv (BER_TYPE_IPADDRESS)
1013	const_iv (BER_TYPE_CROAK)	1088	const_iv (BER_TYPE_CROAK)
1014		1089
1015	const_iv (SNMP_IPADDRESS)	1090	const_iv (SNMP_IPADDRESS)
1016	const_iv (SNMP_COUNTER32)	1091	const_iv (SNMP_COUNTER32)
		1092	const_iv (SNMP_GAUGE32)
1017	const_iv (SNMP_UNSIGNED32)	1093	const_iv (SNMP_UNSIGNED32)
1018	const_iv (SNMP_TIMETICKS)	1094	const_iv (SNMP_TIMETICKS)
1019	const_iv (SNMP_OPAQUE)	1095	const_iv (SNMP_OPAQUE)
1020	const_iv (SNMP_COUNTER64)	1096	const_iv (SNMP_COUNTER64)
1021	};	1097	};
1022		1098
1023	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)	1099	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
1024	newCONSTSUB (stash, (char *)civ[-1].name, newSViv (civ[-1].iv));	1100	newCONSTSUB (stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
1025	}	1101	}
1026		1102
1027	SV *	1103	void
1028	ber_decode (SV ber, SV profile = &PL_sv_undef)	1104	ber_decode (SV ber, SV profile = &PL_sv_undef)
		1105	ALIAS:
		1106	ber_decode_prefix = 1
1029	CODE:	1107	PPCODE:
1030	{	1108	{
1031	cur_profile = SvPROFILE (profile);	1109	cur_profile = SvPROFILE (profile);
1032	STRLEN len;	1110	STRLEN len;
1033	buf = SvPVbyte (ber, len);	1111	buf = (U8 *)SvPVbyte (ber, len);
1034	cur = buf;	1112	cur = buf;
1035	end = buf + len;	1113	end = buf + len;
1036		1114
1037	RETVAL = decode_ber ();	1115	SV *tuple = decode_ber ();
		1116
		1117	EXTEND (SP, 2);
		1118	PUSHs (sv_2mortal (tuple));
		1119
		1120	if (ix)
		1121	PUSHs (sv_2mortal (newSViv (cur - buf)));
		1122	else if (cur != end)
		1123	error ("trailing garbage after BER value");
1038	}	1124	}
1039	OUTPUT: RETVAL
1040		1125
1041	void	1126	void
1042	ber_is (SV tuple, SV klass = &PL_sv_undef, SV tag = &PL_sv_undef, SV constructed = &PL_sv_undef, SV *data = &PL_sv_undef)	1127	ber_is (SV tuple, SV klass = &PL_sv_undef, SV tag = &PL_sv_undef, SV flags = &PL_sv_undef, SV *data = &PL_sv_undef)
1043	PPCODE:	1128	PPCODE:
1044	{	1129	{
1045	if (!SvOK (tuple))	1130	if (!SvOK (tuple))
1046	XSRETURN_NO;	1131	XSRETURN_NO;
1047		1132
…		…
1049	croak ("ber_is: tuple must be BER tuple (array-ref)");	1134	croak ("ber_is: tuple must be BER tuple (array-ref)");
1050		1135
1051	AV av = (AV )SvRV (tuple);	1136	AV av = (AV )SvRV (tuple);
1052		1137
1053	XPUSHs (	1138	XPUSHs (
1054	(!SvOK (klass) \|\| SvIV (AvARRAY (av)[BER_CLASS ]) == SvIV (klass))	1139	(!SvOK (klass) \|\| SvIV (AvARRAY (av)[BER_CLASS]) == SvIV (klass))
1055	&& (!SvOK (tag) \|\| SvIV (AvARRAY (av)[BER_TAG ]) == SvIV (tag))	1140	&& (!SvOK (tag) \|\| SvIV (AvARRAY (av)[BER_TAG ]) == SvIV (tag))
1056	&& (!SvOK (constructed) \|\| !SvIV (AvARRAY (av)[BER_CONSTRUCTED]) == !SvIV (constructed))	1141	&& (!SvOK (flags) \|\| !SvIV (AvARRAY (av)[BER_FLAGS]) == !SvIV (flags))
1057	&& (!SvOK (data) \|\| sv_eq (AvARRAY (av)[BER_DATA ], data))	1142	&& (!SvOK (data) \|\| sv_eq (AvARRAY (av)[BER_DATA ], data))
1058	? &PL_sv_yes : &PL_sv_undef);	1143	? &PL_sv_yes : &PL_sv_undef);
1059	}	1144	}
1060		1145
1061	void	1146	void
1062	ber_is_seq (SV *tuple)	1147	ber_is_seq (SV *tuple)
…		…
1066	XSRETURN_UNDEF;	1151	XSRETURN_UNDEF;
1067		1152
1068	AV *av = ber_tuple (tuple);	1153	AV *av = ber_tuple (tuple);
1069		1154
1070	XPUSHs (	1155	XPUSHs (
1071	SvIV (AvARRAY (av)[BER_CLASS ]) == ASN_UNIVERSAL	1156	SvIV (AvARRAY (av)[BER_CLASS]) == ASN_UNIVERSAL
1072	&& SvIV (AvARRAY (av)[BER_TAG ]) == ASN_SEQUENCE	1157	&& SvIV (AvARRAY (av)[BER_TAG ]) == ASN_SEQUENCE
1073	&& SvIV (AvARRAY (av)[BER_CONSTRUCTED])	1158	&& SvIV (AvARRAY (av)[BER_FLAGS])
1074	? AvARRAY (av)[BER_DATA] : &PL_sv_undef);	1159	? AvARRAY (av)[BER_DATA] : &PL_sv_undef);
1075	}	1160	}
1076		1161
1077	void	1162	void
1078	ber_is_i32 (SV tuple, SV value = &PL_sv_undef)	1163	ber_is_int (SV tuple, SV value = &PL_sv_undef)
1079	PPCODE:	1164	PPCODE:
1080	{	1165	{
1081	if (!SvOK (tuple))	1166	if (!SvOK (tuple))
1082	XSRETURN_NO;	1167	XSRETURN_NO;
1083		1168
1084	AV *av = ber_tuple (tuple);	1169	AV *av = ber_tuple (tuple);
1085		1170
1086	IV data = SvIV (AvARRAY (av)[BER_DATA]);	1171	UV data = SvUV (AvARRAY (av)[BER_DATA]);
1087		1172
1088	XPUSHs (	1173	XPUSHs (
1089	SvIV (AvARRAY (av)[BER_CLASS ]) == ASN_UNIVERSAL	1174	SvIV (AvARRAY (av)[BER_CLASS]) == ASN_UNIVERSAL
1090	&& SvIV (AvARRAY (av)[BER_TAG ]) == ASN_INTEGER32	1175	&& SvIV (AvARRAY (av)[BER_TAG ]) == ASN_INTEGER
1091	&& !SvIV (AvARRAY (av)[BER_CONSTRUCTED])	1176	&& !SvIV (AvARRAY (av)[BER_FLAGS])
1092	&& (!SvOK (value) \|\| data == SvIV (value))	1177	&& (!SvOK (value) \|\| data == SvUV (value))
1093	? sv_2mortal (data ? newSViv (data) : newSVpv ("0 but true", 0))	1178	? sv_2mortal (data ? newSVsv (AvARRAY (av)[BER_DATA]) : newSVpv ("0 but true", 0))
1094	: &PL_sv_undef);	1179	: &PL_sv_undef);
1095	}	1180	}
1096		1181
1097	void	1182	void
1098	ber_is_oid (SV tuple, SV oid = &PL_sv_undef)	1183	ber_is_oid (SV tuple, SV oid = &PL_sv_undef)
…		…
1102	XSRETURN_NO;	1187	XSRETURN_NO;
1103		1188
1104	AV *av = ber_tuple (tuple);	1189	AV *av = ber_tuple (tuple);
1105		1190
1106	XPUSHs (	1191	XPUSHs (
1107	SvIV (AvARRAY (av)[BER_CLASS ]) == ASN_UNIVERSAL	1192	SvIV (AvARRAY (av)[BER_CLASS]) == ASN_UNIVERSAL
1108	&& SvIV (AvARRAY (av)[BER_TAG ]) == ASN_OBJECT_IDENTIFIER	1193	&& SvIV (AvARRAY (av)[BER_TAG ]) == ASN_OBJECT_IDENTIFIER
1109	&& !SvIV (AvARRAY (av)[BER_CONSTRUCTED])	1194	&& !SvIV (AvARRAY (av)[BER_FLAGS])
1110	&& (!SvOK (oid) \|\| sv_eq (AvARRAY (av)[BER_DATA], oid))	1195	&& (!SvOK (oid) \|\| sv_eq (AvARRAY (av)[BER_DATA], oid))
1111	? newSVsv (AvARRAY (av)[BER_DATA]) : &PL_sv_undef);	1196	? newSVsv (AvARRAY (av)[BER_DATA]) : &PL_sv_undef);
1112	}	1197	}
1113		1198
1114	#############################################################################	1199	#############################################################################
…		…
1127	SvCUR_set (buf_sv, cur - buf);	1212	SvCUR_set (buf_sv, cur - buf);
1128	XPUSHs (buf_sv);	1213	XPUSHs (buf_sv);
1129	}	1214	}
1130		1215
1131	SV *	1216	SV *
1132	ber_i32 (IV iv)	1217	ber_int (SV *sv)
1133	CODE:	1218	CODE:
1134	{	1219	{
1135	AV *av = newAV ();	1220	AV *av = newAV ();
1136	av_fill (av, BER_ARRAYSIZE - 1);	1221	av_fill (av, BER_ARRAYSIZE - 1);
1137	AvARRAY (av)[BER_CLASS ] = newSVcacheint (ASN_UNIVERSAL);	1222	AvARRAY (av)[BER_CLASS] = newSVcacheint (ASN_UNIVERSAL);
1138	AvARRAY (av)[BER_TAG ] = newSVcacheint (ASN_INTEGER32);	1223	AvARRAY (av)[BER_TAG ] = newSVcacheint (ASN_INTEGER);
1139	AvARRAY (av)[BER_CONSTRUCTED] = newSVcacheint (0);	1224	AvARRAY (av)[BER_FLAGS] = newSVcacheint (0);
1140	AvARRAY (av)[BER_DATA ] = newSViv (iv);	1225	AvARRAY (av)[BER_DATA ] = newSVsv (sv);
1141	RETVAL = newRV_noinc ((SV *)av);	1226	RETVAL = newRV_noinc ((SV *)av);
1142	}	1227	}
1143	OUTPUT: RETVAL	1228	OUTPUT: RETVAL
1144		1229
1145	# TODO: not arrayref, but elements?	1230	# TODO: not arrayref, but elements?
…		…
1147	ber_seq (SV *arrayref)	1232	ber_seq (SV *arrayref)
1148	CODE:	1233	CODE:
1149	{	1234	{
1150	AV *av = newAV ();	1235	AV *av = newAV ();
1151	av_fill (av, BER_ARRAYSIZE - 1);	1236	av_fill (av, BER_ARRAYSIZE - 1);
1152	AvARRAY (av)[BER_CLASS ] = newSVcacheint (ASN_UNIVERSAL);	1237	AvARRAY (av)[BER_CLASS] = newSVcacheint (ASN_UNIVERSAL);
1153	AvARRAY (av)[BER_TAG ] = newSVcacheint (ASN_SEQUENCE);	1238	AvARRAY (av)[BER_TAG ] = newSVcacheint (ASN_SEQUENCE);
1154	AvARRAY (av)[BER_CONSTRUCTED] = newSVcacheint (1);	1239	AvARRAY (av)[BER_FLAGS] = newSVcacheint (1);
1155	AvARRAY (av)[BER_DATA ] = newSVsv (arrayref);	1240	AvARRAY (av)[BER_DATA ] = newSVsv (arrayref);
1156	RETVAL = newRV_noinc ((SV *)av);	1241	RETVAL = newRV_noinc ((SV *)av);
1157	}	1242	}
1158	OUTPUT: RETVAL	1243	OUTPUT: RETVAL
1159		1244
1160	MODULE = Convert::BER::XS PACKAGE = Convert::BER::XS::Profile	1245	MODULE = Convert::BER::XS PACKAGE = Convert::BER::XS::Profile

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Comparing Convert-BER-XS/XS.xs (file contents): Revision 1.9 by root, Sat Apr 20 02:12:27 2019 UTC vs. Revision 1.27 by root, Mon Apr 22 11:01:49 2019 UTC

Diff Legend

Comparing Convert-BER-XS/XS.xs (file contents):
Revision 1.9 by root, Sat Apr 20 02:12:27 2019 UTC vs.
Revision 1.27 by root, Mon Apr 22 11:01:49 2019 UTC