[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 1.29 by root, Tue Apr 23 19:44:12 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, //X	18	ASN_OID = 0x06,
16	ASN_OBJECT_DESCRIPTOR = 0x07, //X	19	ASN_OBJECT_DESCRIPTOR = 0x07,
17	ASN_EXTERNAL = 0x08, //X	20	ASN_EXTERNAL = 0x08,
18	ASN_REAL = 0x09, //X	21	ASN_REAL = 0x09,
19	ASN_ENUMERATED = 0x0a, //X	22	ASN_ENUMERATED = 0x0a,
20	ASN_EMBEDDED_PDV = 0x0b, //X	23	ASN_EMBEDDED_PDV = 0x0b,
21	ASN_UTF8_STRING = 0x0c, //X	24	ASN_UTF8_STRING = 0x0c,
22	ASN_RELATIVE_OID = 0x0d, //X	25	ASN_RELATIVE_OID = 0x0d,
23	ASN_SEQUENCE = 0x10,	26	ASN_SEQUENCE = 0x10,
24	ASN_SET = 0x11, //X	27	ASN_SET = 0x11,
25	ASN_NUMERIC_STRING = 0x12, //X	28	ASN_NUMERIC_STRING = 0x12,
26	ASN_PRINTABLE_STRING = 0x13, //X	29	ASN_PRINTABLE_STRING = 0x13,
27	ASN_TELETEX_STRING = 0x14, //X	30	ASN_TELETEX_STRING = 0x14,
28	ASN_T61_STRING = 0x14, //X	31	ASN_T61_STRING = 0x14,
29	ASN_VIDEOTEX_STRING = 0x15, //X	32	ASN_VIDEOTEX_STRING = 0x15,
30	ASN_IA5_STRING = 0x16, //X	33	ASN_IA5_STRING = 0x16,
31	ASN_ASCII_STRING = 0x16, //X	34	ASN_ASCII_STRING = 0x16,
32	ASN_UTC_TIME = 0x17, //X	35	ASN_UTC_TIME = 0x17,
33	ASN_GENERALIZED_TIME = 0x18, //X	36	ASN_GENERALIZED_TIME = 0x18,
34	ASN_GRAPHIC_STRING = 0x19, //X	37	ASN_GRAPHIC_STRING = 0x19,
35	ASN_VISIBLE_STRING = 0x1a, //X	38	ASN_VISIBLE_STRING = 0x1a,
36	ASN_ISO646_STRING = 0x1a, //X	39	ASN_ISO646_STRING = 0x1a,
37	ASN_GENERAL_STRING = 0x1b, //X	40	ASN_GENERAL_STRING = 0x1b,
38	ASN_UNIVERSAL_STRING = 0x1c, //X	41	ASN_UNIVERSAL_STRING = 0x1c,
39	ASN_CHARACTER_STRING = 0x1d, //X	42	ASN_CHARACTER_STRING = 0x1d,
40	ASN_BMPSTRING = 0x1e, //X	43	ASN_BMP_STRING = 0x1e,
41		44
42	ASN_TAG_BER = 0x1f,	45	ASN_TAG_BER = 0x1f,
43	ASN_TAG_MASK = 0x1f,	46	ASN_TAG_MASK = 0x1f,
44		47
45	// primitive/constructed	48	// primitive/constructed
46	ASN_CONSTRUCTED = 0x20,	49	ASN_CONSTRUCTED = 0x20,
47		50
48	// ASN_CLASS	51	// ASN_CLASS
49	ASN_UNIVERSAL = 0x00,	52	ASN_UNIVERSAL = 0x00,
50	ASN_APPLICATION = 0x40,	53	ASN_APPLICATION = 0x01,
51	ASN_CONTEXT = 0x80,	54	ASN_CONTEXT = 0x02,
52	ASN_PRIVATE = 0xc0,	55	ASN_PRIVATE = 0x03,
53		56
54	ASN_CLASS_MASK = 0xc0,	57	ASN_CLASS_MASK = 0xc0,
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	};
65		69
66	enum {	70	enum {
		71	BER_TYPE_BYTES,
		72	BER_TYPE_UTF8,
		73	BER_TYPE_UCS2,
		74	BER_TYPE_UCS4,
		75	BER_TYPE_INT,
		76	BER_TYPE_OID,
		77	BER_TYPE_RELOID,
		78	BER_TYPE_NULL,
		79	BER_TYPE_BOOL,
		80	BER_TYPE_REAL,
		81	BER_TYPE_IPADDRESS,
		82	BER_TYPE_CROAK,
		83	};
		84
		85	enum {
67	BER_CLASS = 0,	86	BER_CLASS = 0,
68	BER_TAG = 1,	87	BER_TAG = 1,
69	BER_CONSTRUCTED = 2,	88	BER_FLAGS = 2,
70	BER_DATA = 3,	89	BER_DATA = 3,
71	BER_ARRAYSIZE	90	BER_ARRAYSIZE
72	};	91	};
73		92
74	#define MAX_OID_STRLEN 4096	93	#define MAX_OID_STRLEN 4096
75		94
		95	typedef void profile_type;
		96
		97	static profile_type cur_profile, default_profile;
76	static SV *buf_sv; // encoding buffer	98	static SV *buf_sv; // encoding buffer
77	static U8 buf, cur, *end; // buffer start, current, end	99	static U8 buf, cur, *end; // buffer start, current, end
		100
		101	#if PERL_VERSION < 18
		102	# define utf8_to_uvchr_buf(s,e,l) utf8_to_uvchr (s, l)
		103	#endif
78		104
79	#if __GNUC__ >= 3	105	#if __GNUC__ >= 3
80	# define expect(expr,value) __builtin_expect ((expr), (value))	106	# define expect(expr,value) __builtin_expect ((expr), (value))
81	# define INLINE static inline	107	# define INLINE static inline
82	#else	108	#else
85	#endif	111	#endif
86		112
87	#define expect_false(expr) expect ((expr) != 0, 0)	113	#define expect_false(expr) expect ((expr) != 0, 0)
88	#define expect_true(expr) expect ((expr) != 0, 1)	114	#define expect_true(expr) expect ((expr) != 0, 1)
89		115
		116	/////////////////////////////////////////////////////////////////////////////
		117
		118	static SV *sviv_cache[32];
		119
90	// for "small" integers, return a readonly sv, otherwise create a new one	120	// for "small" integers, return a readonly sv, otherwise create a new one
91	static SV *newSVcacheint (int val)	121	static SV *newSVcacheint (int val)
92	{	122	{
93	static SV *cache[32];
94
95	if (expect_false (val < 0 \|\| val >= sizeof (cache)))	123	if (expect_false (val < 0 \|\| val >= sizeof (sviv_cache)))
96	return newSViv (val);	124	return newSViv (val);
97		125
98	if (expect_false (!cache [val]))	126	if (expect_false (!sviv_cache [val]))
99	{	127	{
100	cache [val] = newSVuv (val);	128	sviv_cache [val] = newSVuv (val);
101	SvREADONLY_on (cache [val]);	129	SvREADONLY_on (sviv_cache [val]);
102	}	130	}
103		131
104	return SvREFCNT_inc_NN (cache [val]);	132	return SvREFCNT_inc_NN (sviv_cache [val]);
		133	}
		134
		135	/////////////////////////////////////////////////////////////////////////////
		136
		137	static HV *profile_stash;
		138
		139	static profile_type *
		140	SvPROFILE (SV *profile)
		141	{
		142	if (!SvOK (profile))
		143	return default_profile;
		144
		145	if (!SvROK (profile))
		146	croak ("Convert::BER::XS::Profile expected");
		147
		148	profile = SvRV (profile);
		149
		150	if (SvSTASH (profile) != profile_stash)
		151	croak ("Convert::BER::XS::Profile expected");
		152
		153	return (void *)profile;
		154	}
		155
		156	static int
		157	profile_lookup (profile_type *profile, int klass, int tag)
		158	{
		159	SV sv = (SV )profile;
		160	U32 idx = (tag << 2) + klass;
		161
		162	if (expect_false (idx >= SvCUR (sv)))
		163	return BER_TYPE_BYTES;
		164
		165	return SvPVX (sv)[idx];
		166	}
		167
		168	static void
		169	profile_set (profile_type *profile, int klass, int tag, int type)
		170	{
		171	SV sv = (SV )profile;
		172	U32 idx = (tag << 2) + klass;
		173	STRLEN oldlen = SvCUR (sv);
		174	STRLEN newlen = idx + 2;
		175
		176	if (idx >= oldlen)
		177	{
		178	sv_grow (sv, newlen);
		179	memset (SvPVX (sv) + oldlen, BER_TYPE_BYTES, newlen - oldlen);
		180	SvCUR_set (sv, newlen);
		181	}
		182
		183	SvPVX (sv)[idx] = type;
		184	}
		185
		186	static SV *
		187	profile_new (void)
		188	{
		189	SV *sv = newSVpvn ("", 0);
		190
		191	static const struct {
		192	int klass;
		193	int tag;
		194	int type;
		195	} *celem, default_map[] = {
		196	{ ASN_UNIVERSAL, ASN_BOOLEAN , BER_TYPE_BOOL },
		197	{ ASN_UNIVERSAL, ASN_INTEGER , BER_TYPE_INT },
		198	{ ASN_UNIVERSAL, ASN_NULL , BER_TYPE_NULL },
		199	{ ASN_UNIVERSAL, ASN_OBJECT_IDENTIFIER, BER_TYPE_OID },
		200	{ ASN_UNIVERSAL, ASN_RELATIVE_OID , BER_TYPE_RELOID },
		201	{ ASN_UNIVERSAL, ASN_REAL , BER_TYPE_REAL },
		202	{ ASN_UNIVERSAL, ASN_ENUMERATED , BER_TYPE_INT },
		203	{ ASN_UNIVERSAL, ASN_UTF8_STRING , BER_TYPE_UTF8 },
		204	{ ASN_UNIVERSAL, ASN_BMP_STRING , BER_TYPE_UCS2 },
		205	{ ASN_UNIVERSAL, ASN_UNIVERSAL_STRING , BER_TYPE_UCS4 },
		206	};
		207
		208	for (celem = default_map + sizeof (default_map) / sizeof (default_map [0]); celem-- > default_map; )
		209	profile_set ((profile_type *)sv, celem->klass, celem->tag, celem->type);
		210
		211	return sv_bless (newRV_noinc (sv), profile_stash);
105	}	212	}
106		213
107	/////////////////////////////////////////////////////////////////////////////	214	/////////////////////////////////////////////////////////////////////////////
108	// decoder	215	// decoder
109		216
…		…
120	error ("unexpected end of message buffer");	227	error ("unexpected end of message buffer");
121	}	228	}
122		229
123	// get_* functions fetch something from the buffer	230	// get_* functions fetch something from the buffer
124	// 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	}
125		242
126	// get n octets	243	// get n octets
127	static U8 *	244	static U8 *
128	get_n (UV count)	245	get_n (UV count)
129	{	246	{
…		…
131	U8 *res = cur;	248	U8 *res = cur;
132	cur += count;	249	cur += count;
133	return res;	250	return res;
134	}	251	}
135		252
136	// get single octet
137	static U8
138	get_u8 (void)
139	{
140	if (cur == end)
141	error ("unexpected end of message buffer");
142
143	return *cur++;
144	}
145
146	// get ber-encoded integer (i.e. pack "w")	253	// get ber-encoded integer (i.e. pack "w")
147	static U32	254	static UV
148	get_w (void)	255	get_w (void)
149	{	256	{
150	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)");
151		262
152	for (;;)	263	for (;;)
153	{	264	{
154	U8 c = get_u8 ();	265	if (expect_false (res >> UVSIZE * 8 - 7))
		266	error ("BER variable length integer overflow");
		267
155	res = (res << 7) \| (c & 0x7f);	268	res = (res << 7) \| (c & 0x7f);
156		269
157	if (!(c & 0x80))	270	if (expect_true (!(c & 0x80)))
158	return res;	271	return res;
159	}
160	}
161		272
		273	c = get_u8 ();
		274	}
		275	}
		276
162	static U32	277	static UV
163	get_length (void)	278	get_length (void)
164	{	279	{
165	U32 res = get_u8 ();	280	UV res = get_u8 ();
166		281
167	if (res & 0x80)	282	if (expect_false (res & 0x80))
168	{	283	{
169	int cnt = res & 0x7f;	284	U8 cnt = res & 0x7f;
		285
		286	// this genewrates quite ugly code, but the overhead
		287	// of copying the bytes for these lengths is probably so high
		288	// that a slightly inefficient get_length won't matter.
		289
		290	if (expect_false (cnt == 0))
		291	error ("indefinite BER value lengths not supported");
		292
		293	if (expect_false (cnt > UVSIZE))
		294	error ("BER value length too long (must fit into UV) or BER reserved value in length (X.690 8.1.3.5)");
		295
		296	want (cnt);
		297
170	res = 0;	298	res = 0;
171		299	do
172	switch (cnt)	300	res = (res << 8) \| *cur++;
173	{	301	while (--cnt);
174	case 0:
175	error ("indefinite ASN.1 lengths not supported");
176	return 0;
177
178	default:
179	error ("ASN.1 length too long");
180	return 0;
181
182	case 4: res = (res << 8) \| get_u8 ();
183	case 3: res = (res << 8) \| get_u8 ();
184	case 2: res = (res << 8) \| get_u8 ();
185	case 1: res = (res << 8) \| get_u8 ();
186	}
187	}	302	}
188		303
189	return res;	304	return res;
190	}	305	}
191		306
192	static U32
193	get_integer32 (void)
194	{
195	U32 length = get_length ();
196
197	if (length <= 0)
198	{
199	error ("INTEGER32 length equal to zero");
200	return 0;
201	}
202
203	U8 *data = get_n (length);
204
205	if (length > 5 \|\| (length > 4 && data [0]))
206	{
207	error ("INTEGER32 length too long");
208	return 0;
209	}
210
211	U32 res = data [0] & 0x80 ? 0xffffffff : 0;
212
213	while (length--)
214	res = (res << 8) \| *data++;
215
216	return res;
217	}
218
219	static SV *	307	static SV *
220	decode_integer32 (void)	308	decode_int (void)
221	{	309	{
222	return newSViv ((I32)get_integer32 ());	310	UV len = get_length ();
		311
		312	if (!len)
		313	error ("invalid BER_TYPE_INT length zero (X.690 8.3.1)");
		314
		315	U8 *data = get_n (len);
		316
		317	if (expect_false (len > 1))
		318	{
		319	U16 mask = (data [0] << 8) \| data [1] & 0xff80;
		320
		321	if (expect_false (mask == 0xff80 \|\| mask == 0x0000))
		322	error ("illegal padding in BER_TYPE_INT (X.690 8.3.2)");
		323	}
		324
		325	int negative = data [0] & 0x80;
		326
		327	UV val = negative ? -1 : 0; // copy signbit to all bits
		328
		329	if (len > UVSIZE + (!negative && !*data))
		330	error ("BER_TYPE_INT overflow");
		331
		332	do
		333	val = (val << 8) \| *data++;
		334	while (--len);
		335
		336	// the cast to IV relies on implementation-defined behaviour (two's complement cast)
		337	// but that's ok, as perl relies on it as well.
		338	return negative ? newSViv ((IV)val) : newSVuv (val);
223	}	339	}
224		340
225	static SV *	341	static SV *
226	decode_unsigned32 (void)	342	decode_data (void)
227	{	343	{
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 ();	344	UV len = get_length ();
237		345	return newSVpvn ((char *)get_n (len), len);
238	if (length <= 0)
239	{
240	error ("INTEGER64 length equal to zero");
241	return 0;
242	}
243
244	U8 *data = get_n (length);
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	}	346	}
259		347
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);
280	}
281
282	// gelper for decode_object_identifier	348	// helper for decode_object_identifier
283	static char *	349	static char *
284	write_uv (char *buf, U32 u)	350	write_uv (char *buf, UV u)
285	{	351	{
286	// the one-digit case is absolutely predominant, so this pays off (hopefully)	352	// the one-digit case is absolutely predominant, so this pays off (hopefully)
287	if (u < 10)	353	if (expect_true (u < 10))
288	*buf++ = u + '0';	354	*buf++ = u + '0';
289	else	355	else
290	{	356	{
		357	// this could be done much faster using branchless fixed-point arithmetics
291	char *beg = buf;	358	char *beg = buf;
292		359
293	do	360	do
294	{	361	{
295	*buf++ = u % 10 + '0';	362	*buf++ = u % 10 + '0';
296	u /= 10;	363	u /= 10;
297	}	364	}
298	while (u);	365	while (u);
299		366
300	// reverse digits	367	// reverse digits
301	for (char *ptr = buf; --ptr != beg; ++beg)	368	char *ptr = buf;
		369	while (--ptr > beg)
302	{	370	{
303	char c = *ptr;	371	char c = *ptr;
304	ptr = beg;	372	ptr = beg;
305	*beg = c;	373	*beg = c;
		374	++beg;
306	}	375	}
307	}	376	}
308		377
309	return buf;	378	return buf;
310	}	379	}
311		380
312	static SV *	381	static SV *
313	decode_object_identifier (void)	382	decode_oid (int relative)
314	{	383	{
315	U32 length = get_length ();	384	UV len = get_length ();
316		385
317	if (length <= 0)	386	if (len <= 0)
318	{	387	{
319	error ("OBJECT IDENTIFIER length equal to zero");	388	error ("BER_TYPE_OID length must not be zero");
320	return &PL_sv_undef;	389	return &PL_sv_undef;
321	}	390	}
322		391
323	U8 *end = cur + length;	392	U8 *end = cur + len;
324	U32 w = get_w ();	393	UV w = get_w ();
325		394
326	static char oid[MAX_OID_STRLEN]; // must be static	395	static char oid[MAX_OID_STRLEN]; // static, because too large for stack
327	char *app = oid;	396	char *app = oid;
328		397
		398	if (relative)
329	app = write_uv (app, (U8)w / 40);	399	app = write_uv (app, w);
		400	else
		401	{
		402	UV w1, w2;
		403
		404	if (w < 2 * 40)
		405	(w1 = w / 40), (w2 = w % 40);
		406	else
		407	(w1 = 2), (w2 = w - 2 * 40);
		408
		409	app = write_uv (app, w1);
330	*app++ = '.';	410	*app++ = '.';
331	app = write_uv (app, (U8)w % 40);	411	app = write_uv (app, w2);
		412	}
332		413
		414	while (cur < end)
		415	{
333	// we assume an oid component is never > 64 bytes	416	// we assume an oid component is never > 64 digits
334	while (cur < end && oid + sizeof (oid) - app > 64)	417	if (oid + sizeof (oid) - app < 64)
335	{	418	croak ("BER_TYPE_OID to long to decode");
		419
336	w = get_w ();	420	w = get_w ();
337	*app++ = '.';	421	*app++ = '.';
338	app = write_uv (app, w);	422	app = write_uv (app, w);
339	}	423	}
340		424
341	return newSVpvn (oid, app - oid);	425	return newSVpvn (oid, app - oid);
342	}	426	}
343		427
		428	// TODO: this is unacceptably slow
344	static SV *	429	static SV *
		430	decode_ucs (int chrsize)
		431	{
		432	SV *res = NEWSV (0, 0);
		433
		434	UV len = get_length ();
		435
		436	if (len & (chrsize - 1))
		437	croak ("BER_TYPE_UCS has an invalid number of octets (%d)", len);
		438
		439	while (len)
		440	{
		441	U8 b1 = get_u8 ();
		442	U8 b2 = get_u8 ();
		443	U32 chr = (b1 << 8) \| b2;
		444
		445	if (chrsize == 4)
		446	{
		447	U8 b3 = get_u8 ();
		448	U8 b4 = get_u8 ();
		449	chr = (chr << 16) \| (b3 << 8) \| b4;
		450	}
		451
		452	U8 uchr [UTF8_MAXBYTES];
		453	int uclen = uvuni_to_utf8 (uchr, chr) - uchr;
		454
		455	sv_catpvn (res, (const char *)uchr, uclen);
		456	len -= chrsize;
		457	}
		458
		459	SvUTF8_on (res);
		460
		461	return res;
		462	}
		463
		464	static SV *
345	decode_ber ()	465	decode_ber (void)
346	{	466	{
347	int identifier = get_u8 ();	467	int identifier = get_u8 ();
348		468
349	SV *res;	469	SV *res;
350		470
351	int constructed = identifier & ASN_CONSTRUCTED;	471	int constructed = identifier & ASN_CONSTRUCTED;
352	int klass = identifier & ASN_CLASS_MASK;	472	int klass = (identifier & ASN_CLASS_MASK) >> ASN_CLASS_SHIFT;
353	int tag = identifier & ASN_TAG_MASK;	473	int tag = identifier & ASN_TAG_MASK;
354		474
355	if (tag == ASN_TAG_BER)	475	if (tag == ASN_TAG_BER)
356	tag = get_w ();	476	tag = get_w ();
357		477
358	if (tag == ASN_TAG_BER)
359	tag = get_w ();
360
361	if (constructed)	478	if (constructed)
362	{	479	{
363	U32 len = get_length ();	480	UV len = get_length ();
364	U32 seqend = (cur - buf) + len;	481	UV seqend = (cur - buf) + len;
365	AV av = (AV )sv_2mortal ((SV *)newAV ());	482	AV av = (AV )sv_2mortal ((SV *)newAV ());
366		483
367	while (cur < buf + seqend)	484	while (cur < buf + seqend)
368	av_push (av, decode_ber ());	485	av_push (av, decode_ber ());
369		486
370	if (cur > buf + seqend)	487	if (cur > buf + seqend)
371	croak ("constructed type %02x overflow (%x %x)\n", identifier, cur - buf, seqend);	488	croak ("CONSTRUCTED type %02x length overflow (0x%x 0x%x)\n", identifier, (int)(cur - buf), (int)seqend);
372		489
373	res = newRV_inc ((SV *)av);	490	res = newRV_inc ((SV *)av);
374	}	491	}
375	else	492	else
376	switch (identifier)	493	switch (profile_lookup (cur_profile, klass, tag))
377	{	494	{
378	case ASN_NULL:	495	case BER_TYPE_NULL:
		496	{
		497	UV len = get_length ();
		498
		499	if (len)
		500	croak ("BER_TYPE_NULL value with non-zero length %d encountered (X.690 8.8.2)", len);
		501
379	res = &PL_sv_undef;	502	res = &PL_sv_undef;
		503	}
380	break;	504	break;
381		505
382	case ASN_OBJECT_IDENTIFIER:	506	case BER_TYPE_BOOL:
		507	{
		508	UV len = get_length ();
		509
		510	if (len != 1)
		511	croak ("BER_TYPE_BOOLEAN value with invalid length %d encountered (X.690 8.2.1)", len);
		512
		513	res = newSVcacheint (!!get_u8 ());
		514	}
		515	break;
		516
		517	case BER_TYPE_OID:
383	res = decode_object_identifier ();	518	res = decode_oid (0);
384	break;	519	break;
385		520
386	case ASN_INTEGER32:	521	case BER_TYPE_RELOID:
		522	res = decode_oid (1);
		523	break;
		524
		525	case BER_TYPE_INT:
387	res = decode_integer32 ();	526	res = decode_int ();
388	break;	527	break;
389		528
390	case ASN_APPLICATION \| SNMP_UNSIGNED32:	529	case BER_TYPE_UTF8:
391	case ASN_APPLICATION \| SNMP_COUNTER32:	530	res = decode_data ();
392	case ASN_APPLICATION \| SNMP_TIMETICKS:	531	SvUTF8_on (res);
		532	break;
		533
		534	case BER_TYPE_BYTES:
		535	res = decode_data ();
		536	break;
		537
		538	case BER_TYPE_IPADDRESS:
		539	{
		540	UV len = get_length ();
		541
		542	if (len != 4)
		543	croak ("BER_TYPE_IPADDRESS type with invalid length %d encountered (RFC 2578 7.1.5)", len);
		544
		545	U8 *data = get_n (4);
		546	res = newSVpvf ("%d.%d.%d.%d", data [0], data [1], data [2], data [3]);
		547	}
		548	break;
		549
		550	case BER_TYPE_UCS2:
		551	res = decode_ucs (2);
		552	break;
		553
		554	case BER_TYPE_UCS4:
393	res = decode_unsigned32 ();	555	res = decode_ucs (4);
394	break;	556	break;
395		557
396	#if 0 // handled by default case	558	case BER_TYPE_REAL:
397	case ASN_OCTET_STRING:	559	error ("BER_TYPE_REAL not implemented");
398	case ASN_APPLICATION \| ASN_IPADDRESS:
399	case ASN_APPLICATION \| ASN_OPAQUE:
400	res = decode_octet_string ();
401	break;
402	#endif
403		560
404	case ASN_APPLICATION \| SNMP_COUNTER64:	561	case BER_TYPE_CROAK:
405	res = decode_integer64 ();	562	croak ("class/tag %d/%d mapped to BER_TYPE_CROAK", klass, tag);
406	break;
407		563
408	default:	564	default:
409	res = decode_octet_string ();	565	croak ("unconfigured/unsupported class/tag %d/%d", klass, tag);
410	break;
411	}	566	}
412		567
413	AV *av = newAV ();	568	AV *av = newAV ();
414	av_fill (av, BER_ARRAYSIZE - 1);	569	av_fill (av, BER_ARRAYSIZE - 1);
415	AvARRAY (av)[BER_CLASS ] = newSVcacheint (klass >> ASN_CLASS_SHIFT);	570	AvARRAY (av)[BER_CLASS] = newSVcacheint (klass);
416	AvARRAY (av)[BER_TAG ] = newSVcacheint (tag);	571	AvARRAY (av)[BER_TAG ] = newSVcacheint (tag);
417	AvARRAY (av)[BER_CONSTRUCTED] = newSVcacheint (constructed ? 1 : 0);	572	AvARRAY (av)[BER_FLAGS] = newSVcacheint (constructed ? 1 : 0);
418	AvARRAY (av)[BER_DATA ] = res;	573	AvARRAY (av)[BER_DATA ] = res;
419		574
420	return newRV_noinc ((SV *)av);	575	return newRV_noinc ((SV *)av);
421	}	576	}
422		577
423	/////////////////////////////////////////////////////////////////////////////	578	/////////////////////////////////////////////////////////////////////////////
…		…
428	strlen_sum (STRLEN l1, STRLEN l2)	583	strlen_sum (STRLEN l1, STRLEN l2)
429	{	584	{
430	size_t sum = l1 + l2;	585	size_t sum = l1 + l2;
431		586
432	if (sum < (size_t)l2 \|\| sum != (size_t)(STRLEN)sum)	587	if (sum < (size_t)l2 \|\| sum != (size_t)(STRLEN)sum)
433	croak ("JSON::XS: string size overflow");	588	croak ("Convert::BER::XS: string size overflow");
434		589
435	return sum;	590	return sum;
436	}	591	}
437		592
438	static void	593	static void
439	set_buf (SV *sv)	594	set_buf (SV *sv)
440	{	595	{
441	STRLEN len;	596	STRLEN len;
442	buf_sv = sv;	597	buf_sv = sv;
443	buf = SvPVbyte (buf_sv, len);	598	buf = (U8 *)SvPVbyte (buf_sv, len);
444	cur = buf;	599	cur = buf;
445	end = buf + len;	600	end = buf + len;
446	}	601	}
447		602
448	/* similar to SvGROW, but somewhat safer and guarantees exponential realloc strategy */	603	/* similar to SvGROW, but somewhat safer and guarantees exponential realloc strategy */
…		…
462	need (STRLEN len)	617	need (STRLEN len)
463	{	618	{
464	if (expect_false ((uintptr_t)(end - cur) < len))	619	if (expect_false ((uintptr_t)(end - cur) < len))
465	{	620	{
466	STRLEN pos = cur - buf;	621	STRLEN pos = cur - buf;
467	buf = my_sv_grow (buf_sv, pos, len);	622	buf = (U8 *)my_sv_grow (buf_sv, pos, len);
468	cur = buf + pos;	623	cur = buf + pos;
469	end = buf + SvLEN (buf_sv) - 1;	624	end = buf + SvLEN (buf_sv) - 1;
470	}	625	}
471	}	626	}
472		627
…		…
476	need (1);	631	need (1);
477	*cur++ = val;	632	*cur++ = val;
478	}	633	}
479		634
480	static void	635	static void
481	put_w_nocheck (U32 val)	636	put_w_nocheck (UV val)
482	{	637	{
		638	#if UVSIZE > 4
		639	cur = (val >> 7 9) \| 0x80; cur += val >= ((UV)1 << (7 * 9));
		640	cur = (val >> 7 8) \| 0x80; cur += val >= ((UV)1 << (7 * 8));
		641	cur = (val >> 7 7) \| 0x80; cur += val >= ((UV)1 << (7 * 7));
		642	cur = (val >> 7 6) \| 0x80; cur += val >= ((UV)1 << (7 * 6));
		643	cur = (val >> 7 5) \| 0x80; cur += val >= ((UV)1 << (7 * 5));
		644	#endif
483	cur = (val >> 7 4) \| 0x80; cur += val >= (1 << (7 * 4));	645	cur = (val >> 7 4) \| 0x80; cur += val >= ((UV)1 << (7 * 4));
484	cur = (val >> 7 3) \| 0x80; cur += val >= (1 << (7 * 3));	646	cur = (val >> 7 3) \| 0x80; cur += val >= ((UV)1 << (7 * 3));
485	cur = (val >> 7 2) \| 0x80; cur += val >= (1 << (7 * 2));	647	cur = (val >> 7 2) \| 0x80; cur += val >= ((UV)1 << (7 * 2));
486	cur = (val >> 7 1) \| 0x80; cur += val >= (1 << (7 * 1));	648	cur = (val >> 7 1) \| 0x80; cur += val >= ((UV)1 << (7 * 1));
487	*cur = val & 0x7f; cur += 1;	649	*cur = val & 0x7f; cur += 1;
488	}	650	}
489		651
490	static void	652	static void
491	put_w (U32 val)	653	put_w (UV val)
492	{	654	{
493	need (5); // we only handle up to 5 bytes	655	need (5); // we only handle up to 5 bytes
494		656
495	put_w_nocheck (val);	657	put_w_nocheck (val);
496	}	658	}
497		659
498	static U8 *	660	static U8 *
499	put_length_at (U32 val, U8 *cur)	661	put_length_at (UV val, U8 *cur)
500	{	662	{
501	if (val < 0x7fU)	663	if (val <= 0x7fU)
502	*cur++ = val;	664	*cur++ = val;
503	else	665	else
504	{	666	{
505	U8 *lenb = cur++;	667	U8 *lenb = cur++;
506		668
507	cur = val >> 24; cur += cur > 0;	669	#if UVSIZE > 4
508	cur = val >> 16; cur += cur > 0;	670	cur = val >> 56; cur += val >= ((UV)1 << (8 7));
509	cur = val >> 8; cur += cur > 0;	671	cur = val >> 48; cur += val >= ((UV)1 << (8 6));
		672	cur = val >> 40; cur += val >= ((UV)1 << (8 5));
		673	cur = val >> 32; cur += val >= ((UV)1 << (8 4));
		674	#endif
		675	cur = val >> 24; cur += val >= ((UV)1 << (8 3));
		676	cur = val >> 16; cur += val >= ((UV)1 << (8 2));
		677	cur = val >> 8; cur += val >= ((UV)1 << (8 1));
510	*cur = val ; cur += 1;	678	*cur = val ; cur += 1;
511		679
512	*lenb = 0x80 + cur - lenb - 1;	680	*lenb = 0x80 + cur - lenb - 1;
513	}	681	}
514		682
515	return cur;	683	return cur;
516	}	684	}
517		685
518	static void	686	static void
519	put_length (U32 val)	687	put_length (UV val)
520	{	688	{
521	need (5);	689	need (9 + val);
522	cur = put_length_at (val, cur);	690	cur = put_length_at (val, cur);
523	}	691	}
524		692
525	// return how many bytes the encoded length requires	693	// return how many bytes the encoded length requires
526	static int length_length (U32 val)	694	static int length_length (UV val)
527	{	695	{
528	return val < 0x7fU	696	// use hashing with a DeBruin sequence, anyone?
		697	return expect_true (val <= 0x7fU)
529	? 1	698	? 1
530	: 2 + (val > 0xffU) + (val > 0xffffU) + (val > 0xffffffU);	699	: 2
		700	+ (val > 0x000000000000ffU)
		701	+ (val > 0x0000000000ffffU)
		702	+ (val > 0x00000000ffffffU)
		703	#if UVSIZE > 4
		704	+ (val > 0x000000ffffffffU)
		705	+ (val > 0x0000ffffffffffU)
		706	+ (val > 0x00ffffffffffffU)
		707	+ (val > 0xffffffffffffffU)
		708	#endif
		709	;
531	}	710	}
532		711
533	static void	712	static void
534	encode_octet_string (SV *sv)	713	encode_data (const char *ptr, STRLEN len)
535	{	714	{
536	STRLEN len;
537	char *ptr = SvPVbyte (sv, len);
538
539	put_length (len);	715	put_length (len);
540	need (len);
541	memcpy (cur, ptr, len);	716	memcpy (cur, ptr, len);
542	cur += len;	717	cur += len;
543	}	718	}
544		719
545	static void	720	static void
546	encode_integer32 (IV iv)	721	encode_uv (UV uv)
547	{	722	{
548	need (5);	723	}
		724
		725	static void
		726	encode_int (SV *sv)
		727	{
		728	need (8 + 1 + 1); // 64 bit + length + extra 0
		729
		730	if (expect_false (!SvIOK (sv)))
		731	sv_2iv_flags (sv, 0);
549		732
550	U8 *lenb = cur++;	733	U8 *lenb = cur++;
551		734
552	if (iv < 0)	735	if (SvIOK_notUV (sv))
553	{	736	{
		737	IV iv = SvIVX (sv);
		738
		739	if (expect_false (iv < 0))
		740	{
554	// get two's complement bit pattern - works even on hypthetical non-2c machines	741	// get two's complement bit pattern - works even on hypothetical non-2c machines
555	U32 uv = iv;	742	UV uv = iv;
556		743
		744	#if UVSIZE > 4
		745	*cur = uv >> 56; cur += !!(~uv & 0xff80000000000000U);
		746	*cur = uv >> 48; cur += !!(~uv & 0xffff800000000000U);
		747	*cur = uv >> 40; cur += !!(~uv & 0xffffff8000000000U);
		748	*cur = uv >> 32; cur += !!(~uv & 0xffffffff80000000U);
		749	#endif
557	*cur = uv >> 24; cur += !!(~uv & 0xff800000U);	750	*cur = uv >> 24; cur += !!(~uv & 0xffffffffff800000U);
558	*cur = uv >> 16; cur += !!(~uv & 0xffff8000U);	751	*cur = uv >> 16; cur += !!(~uv & 0xffffffffffff8000U);
559	*cur = uv >> 8; cur += !!(~uv & 0xffffff80U);	752	*cur = uv >> 8; cur += !!(~uv & 0xffffffffffffff80U);
560	*cur = uv ; cur += 1;	753	*cur = uv ; cur += 1;
561	}	754
562	else	755	*lenb = cur - lenb - 1;
		756
		757	return;
		758	}
563	{	759	}
564	cur = iv >> 24; cur += cur > 0;	760
565	cur = iv >> 16; cur += cur > 0;	761	UV uv = SvUV (sv);
566	cur = iv >> 8; cur += cur > 0;	762
		763	// prepend an extra 0 if the high bit is 1
		764	cur = 0; cur += !!(uv & ((UV)1 << (UVSIZE 8 - 1)));
		765
		766	#if UVSIZE > 4
		767	*cur = uv >> 56; cur += !!(uv & 0xff80000000000000U);
		768	*cur = uv >> 48; cur += !!(uv & 0xffff800000000000U);
		769	*cur = uv >> 40; cur += !!(uv & 0xffffff8000000000U);
		770	*cur = uv >> 32; cur += !!(uv & 0xffffffff80000000U);
		771	#endif
		772	*cur = uv >> 24; cur += !!(uv & 0xffffffffff800000U);
		773	*cur = uv >> 16; cur += !!(uv & 0xffffffffffff8000U);
		774	*cur = uv >> 8; cur += !!(uv & 0xffffffffffffff80U);
567	*cur = iv ; cur += 1;	775	*cur = uv ; cur += 1;
568	}
569		776
570	*lenb = cur - lenb - 1;	777	*lenb = cur - lenb - 1;
571	}	778	}
572		779
573	static void
574	encode_unsigned64 (U64TYPE uv)
575	{
576	need (9);
577
578	U8 *lenb = cur++;
579
580	cur = uv >> 56; cur += cur > 0;
581	cur = uv >> 48; cur += cur > 0;
582	cur = uv >> 40; cur += cur > 0;
583	cur = uv >> 32; cur += cur > 0;
584	cur = uv >> 24; cur += cur > 0;
585	cur = uv >> 16; cur += cur > 0;
586	cur = uv >> 8; cur += cur > 0;
587	*cur = uv ; cur += 1;
588
589	*lenb = cur - lenb - 1;
590	}
591
592	// we don't know the length yet, so we optimistically	780	// we don't know the length yet, so we optimistically
593	// assume the length will need one octet later. if that	781	// assume the length will need one octet later. If that
594	// turns out to be wrong, we memove as needed.	782	// turns out to be wrong, we memmove as needed.
595	// mark the beginning	783	// mark the beginning
596	static STRLEN	784	static STRLEN
597	len_fixup_mark ()	785	len_fixup_mark (void)
598	{	786	{
599	return cur++ - buf;	787	return cur++ - buf;
600	}	788	}
601		789
602	// patch up the length	790	// patch up the length
…		…
631		819
632	return str;	820	return str;
633	}	821	}
634		822
635	static void	823	static void
636	encode_object_identifier (SV *oid)	824	encode_oid (SV *oid, int relative)
637	{	825	{
638	STRLEN slen;	826	STRLEN len;
639	char *ptr = SvPV (oid, slen); // utf8 vs. bytes does not matter	827	char *ptr = SvPV (oid, len); // utf8 vs. bytes does not matter
640		828
641	// we need at most as many octets as the string form	829	// we need at most as many octets as the string form
642	need (slen + 1);	830	need (len + 1);
643	STRLEN mark = len_fixup_mark ();	831	STRLEN mark = len_fixup_mark ();
644		832
645	UV w1, w2;	833	UV w1, w2;
646		834
		835	if (!relative)
		836	{
647	ptr = read_uv (ptr, &w1);	837	ptr = read_uv (ptr, &w1);
648	ptr = read_uv (ptr, &w2);	838	ptr = read_uv (ptr, &w2);
649		839
650	put_w_nocheck (w1 * 40 + w2);	840	put_w_nocheck (w1 * 40 + w2);
		841	}
651		842
652	while (*ptr)	843	while (*ptr)
653	{	844	{
654	ptr = read_uv (ptr, &w1);	845	ptr = read_uv (ptr, &w1);
655	put_w_nocheck (w1);	846	put_w_nocheck (w1);
656	}	847	}
657		848
658	len_fixup (mark);	849	len_fixup (mark);
659	}	850	}
660		851
661	// checkl whether an SV is a BER tuple and returns its AV *	852	// check whether an SV is a BER tuple and returns its AV *
662	static AV *	853	static AV *
663	ber_tuple (SV *tuple)	854	ber_tuple (SV *tuple)
664	{	855	{
665	SV *rv;	856	SV *rv;
666		857
…		…
675		866
676	return (AV *)rv;	867	return (AV *)rv;
677	}	868	}
678		869
679	static void	870	static void
		871	encode_ucs (SV *data, int chrsize)
		872	{
		873	STRLEN uchars = sv_len_utf8 (data);
		874	STRLEN len;;
		875	char *ptr = SvPVutf8 (data, len);
		876
		877	put_length (uchars * chrsize);
		878
		879	while (uchars--)
		880	{
		881	STRLEN uclen;
		882	UV uchr = utf8_to_uvchr_buf ((U8 )ptr, (U8 )ptr + len, &uclen);
		883
		884	ptr += uclen;
		885	len -= uclen;
		886
		887	if (chrsize == 4)
		888	{
		889	*cur++ = uchr >> 24;
		890	*cur++ = uchr >> 16;
		891	}
		892
		893	*cur++ = uchr >> 8;
		894	*cur++ = uchr;
		895	}
		896	}
		897	static void
680	encode_ber (SV *tuple)	898	encode_ber (SV *tuple)
681	{	899	{
682	AV *av = ber_tuple (tuple);	900	AV *av = ber_tuple (tuple);
683		901
684	int klass = SvIV (AvARRAY (av)[BER_CLASS]);	902	int klass = SvIV (AvARRAY (av)[BER_CLASS]);
685	int tag = SvIV (AvARRAY (av)[BER_TAG]);	903	int tag = SvIV (AvARRAY (av)[BER_TAG]);
686	int constructed = SvIV (AvARRAY (av)[BER_CONSTRUCTED]) ? ASN_CONSTRUCTED : 0;	904	int constructed = SvIV (AvARRAY (av)[BER_FLAGS]) & 1 ? ASN_CONSTRUCTED : 0;
687	SV *data = AvARRAY (av)[BER_DATA];	905	SV *data = AvARRAY (av)[BER_DATA];
688		906
689	int identifier = (klass << ASN_CLASS_SHIFT) \| constructed;	907	int identifier = (klass << ASN_CLASS_SHIFT) \| constructed;
690		908
691	if (expect_false (tag >= ASN_TAG_BER))	909	if (expect_false (tag >= ASN_TAG_BER))
…		…
702	// and adjust later	920	// and adjust later
703	need (1);	921	need (1);
704	STRLEN mark = len_fixup_mark ();	922	STRLEN mark = len_fixup_mark ();
705		923
706	if (expect_false (!SvROK (data) \|\| SvTYPE (SvRV (data)) != SVt_PVAV))	924	if (expect_false (!SvROK (data) \|\| SvTYPE (SvRV (data)) != SVt_PVAV))
707	croak ("BER constructed data must be array-reference");	925	croak ("BER CONSTRUCTED data must be array-reference");
708		926
709	AV av = (AV )SvRV (data);	927	AV av = (AV )SvRV (data);
710	int fill = AvFILL (av);	928	int fill = AvFILL (av);
711		929
712	if (expect_false (SvRMAGICAL (av)))	930	if (expect_false (SvRMAGICAL (av)))
713	croak ("BER constructed data must not be tied");	931	croak ("BER CONSTRUCTED data must not be tied");
714		932
		933	int i;
715	for (int i = 0; i <= fill; ++i)	934	for (i = 0; i <= fill; ++i)
716	encode_ber (AvARRAY (av)[i]);	935	encode_ber (AvARRAY (av)[i]);
717		936
718	len_fixup (mark);	937	len_fixup (mark);
719	}	938	}
720	else	939	else
721	switch (identifier \| tag)	940	switch (profile_lookup (cur_profile, klass, tag))
722	{	941	{
723	case ASN_NULL:	942	case BER_TYPE_NULL:
724	put_length (0);	943	put_length (0);
725	break;	944	break;
726		945
727	case ASN_OBJECT_IDENTIFIER:	946	case BER_TYPE_BOOL:
		947	put_length (1);
		948	*cur++ = SvTRUE (data) ? 0xff : 0x00; // 0xff = DER/CER
		949	break;
		950
		951	case BER_TYPE_OID:
728	encode_object_identifier (data);	952	encode_oid (data, 0);
729	break;	953	break;
730		954
731	case ASN_INTEGER32:	955	case BER_TYPE_RELOID:
		956	encode_oid (data, 1);
		957	break;
		958
		959	case BER_TYPE_INT:
732	encode_integer32 (SvIV (data));	960	encode_int (data);
733	break;	961	break;
734		962
735	case ASN_APPLICATION \| SNMP_UNSIGNED32:	963	case BER_TYPE_BYTES:
736	case ASN_APPLICATION \| SNMP_COUNTER32:	964	{
737	case ASN_APPLICATION \| SNMP_TIMETICKS:	965	STRLEN len;
738	case ASN_APPLICATION \| SNMP_COUNTER64:	966	const char *ptr = SvPVbyte (data, len);
739	encode_unsigned64 (SvUV (data));	967	encode_data (ptr, len);
		968	}
740	break;	969	break;
		970
		971	case BER_TYPE_UTF8:
		972	{
		973	STRLEN len;
		974	const char *ptr = SvPVutf8 (data, len);
		975	encode_data (ptr, len);
		976	}
		977	break;
		978
		979	case BER_TYPE_IPADDRESS:
		980	{
		981	U8 ip[4];
		982	sscanf (SvPV_nolen (data), "%hhu.%hhu.%hhu.%hhu", ip + 0, ip + 1, ip + 2, ip + 3);
		983	encode_data ((const char *)ip, sizeof (ip));
		984	}
		985	break;
		986
		987	case BER_TYPE_UCS2:
		988	encode_ucs (data, 2);
		989	break;
		990
		991	case BER_TYPE_UCS4:
		992	encode_ucs (data, 4);
		993	break;
		994
		995	case BER_TYPE_REAL:
		996	croak ("BER_TYPE_REAL not implemented");
		997
		998	case BER_TYPE_CROAK:
		999	croak ("class/tag %d/%d mapped to BER_TYPE_CROAK", klass, tag);
741		1000
742	default:	1001	default:
743	encode_octet_string (data);	1002	croak ("unconfigured/unsupported class/tag %d/%d", klass, tag);
744	break;
745	}	1003	}
746		1004
747	}	1005	}
748		1006
749	/////////////////////////////////////////////////////////////////////////////	1007	/////////////////////////////////////////////////////////////////////////////
…		…
753	PROTOTYPES: ENABLE	1011	PROTOTYPES: ENABLE
754		1012
755	BOOT:	1013	BOOT:
756	{	1014	{
757	HV *stash = gv_stashpv ("Convert::BER::XS", 1);	1015	HV *stash = gv_stashpv ("Convert::BER::XS", 1);
		1016
		1017	profile_stash = gv_stashpv ("Convert::BER::XS::Profile", 1);
758		1018
759	static const struct {	1019	static const struct {
760	const char *name;	1020	const char *name;
761	IV iv;	1021	IV iv;
762	} *civ, const_iv[] = {	1022	} *civ, const_iv[] = {
763	{ "ASN_BOOLEAN", ASN_BOOLEAN },	1023	#define const_iv(name) { # name, name },
764	{ "ASN_INTEGER32", ASN_INTEGER32 },	1024	const_iv (ASN_BOOLEAN)
765	{ "ASN_BIT_STRING", ASN_BIT_STRING },	1025	const_iv (ASN_INTEGER)
766	{ "ASN_OCTET_STRING", ASN_OCTET_STRING },	1026	const_iv (ASN_BIT_STRING)
767	{ "ASN_NULL", ASN_NULL },	1027	const_iv (ASN_OCTET_STRING)
768	{ "ASN_OBJECT_IDENTIFIER", ASN_OBJECT_IDENTIFIER },	1028	const_iv (ASN_NULL)
769	{ "ASN_TAG_BER", ASN_TAG_BER },	1029	const_iv (ASN_OBJECT_IDENTIFIER)
770	{ "ASN_TAG_MASK", ASN_TAG_MASK },	1030	const_iv (ASN_OBJECT_DESCRIPTOR)
771	{ "ASN_CONSTRUCTED", ASN_CONSTRUCTED },	1031	const_iv (ASN_OID)
772	{ "ASN_UNIVERSAL", ASN_UNIVERSAL >> ASN_CLASS_SHIFT },	1032	const_iv (ASN_EXTERNAL)
773	{ "ASN_APPLICATION", ASN_APPLICATION >> ASN_CLASS_SHIFT },	1033	const_iv (ASN_REAL)
774	{ "ASN_CONTEXT", ASN_CONTEXT >> ASN_CLASS_SHIFT },	1034	const_iv (ASN_SEQUENCE)
775	{ "ASN_PRIVATE", ASN_PRIVATE >> ASN_CLASS_SHIFT },	1035	const_iv (ASN_ENUMERATED)
776	{ "ASN_CLASS_MASK", ASN_CLASS_MASK },	1036	const_iv (ASN_EMBEDDED_PDV)
777	{ "ASN_CLASS_SHIFT", ASN_CLASS_SHIFT },	1037	const_iv (ASN_UTF8_STRING)
778	{ "ASN_SEQUENCE", ASN_SEQUENCE },	1038	const_iv (ASN_RELATIVE_OID)
779	{ "SNMP_IPADDRESS", SNMP_IPADDRESS },	1039	const_iv (ASN_SET)
780	{ "SNMP_COUNTER32", SNMP_COUNTER32 },	1040	const_iv (ASN_NUMERIC_STRING)
781	{ "SNMP_UNSIGNED32", SNMP_UNSIGNED32 },	1041	const_iv (ASN_PRINTABLE_STRING)
782	{ "SNMP_TIMETICKS", SNMP_TIMETICKS },	1042	const_iv (ASN_TELETEX_STRING)
783	{ "SNMP_OPAQUE", SNMP_OPAQUE },	1043	const_iv (ASN_T61_STRING)
784	{ "SNMP_COUNTER64", SNMP_COUNTER64 },	1044	const_iv (ASN_VIDEOTEX_STRING)
		1045	const_iv (ASN_IA5_STRING)
		1046	const_iv (ASN_ASCII_STRING)
		1047	const_iv (ASN_UTC_TIME)
		1048	const_iv (ASN_GENERALIZED_TIME)
		1049	const_iv (ASN_GRAPHIC_STRING)
		1050	const_iv (ASN_VISIBLE_STRING)
		1051	const_iv (ASN_ISO646_STRING)
		1052	const_iv (ASN_GENERAL_STRING)
		1053	const_iv (ASN_UNIVERSAL_STRING)
		1054	const_iv (ASN_CHARACTER_STRING)
		1055	const_iv (ASN_BMP_STRING)
785		1056
786	{ "BER_CLASS" , BER_CLASS },	1057	const_iv (ASN_UNIVERSAL)
787	{ "BER_TAG" , BER_TAG },	1058	const_iv (ASN_APPLICATION)
788	{ "BER_CONSTRUCTED", BER_CONSTRUCTED },	1059	const_iv (ASN_CONTEXT)
789	{ "BER_DATA" , BER_DATA },	1060	const_iv (ASN_PRIVATE)
		1061
		1062	const_iv (BER_CLASS)
		1063	const_iv (BER_TAG)
		1064	const_iv (BER_FLAGS)
		1065	const_iv (BER_DATA)
		1066
		1067	const_iv (BER_TYPE_BYTES)
		1068	const_iv (BER_TYPE_UTF8)
		1069	const_iv (BER_TYPE_UCS2)
		1070	const_iv (BER_TYPE_UCS4)
		1071	const_iv (BER_TYPE_INT)
		1072	const_iv (BER_TYPE_OID)
		1073	const_iv (BER_TYPE_RELOID)
		1074	const_iv (BER_TYPE_NULL)
		1075	const_iv (BER_TYPE_BOOL)
		1076	const_iv (BER_TYPE_REAL)
		1077	const_iv (BER_TYPE_IPADDRESS)
		1078	const_iv (BER_TYPE_CROAK)
		1079
		1080	const_iv (SNMP_IPADDRESS)
		1081	const_iv (SNMP_COUNTER32)
		1082	const_iv (SNMP_GAUGE32)
		1083	const_iv (SNMP_UNSIGNED32)
		1084	const_iv (SNMP_TIMETICKS)
		1085	const_iv (SNMP_OPAQUE)
		1086	const_iv (SNMP_COUNTER64)
790	};	1087	};
791		1088
792	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)	1089	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));	1090	newCONSTSUB (stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
794	}	1091	}
795		1092
796	SV *	1093	void
797	ber_decode (SV *ber)	1094	ber_decode (SV ber, SV profile = &PL_sv_undef)
		1095	ALIAS:
		1096	ber_decode_prefix = 1
798	CODE:	1097	PPCODE:
799	{	1098	{
		1099	cur_profile = SvPROFILE (profile);
800	STRLEN len;	1100	STRLEN len;
801
802	buf = SvPVbyte (ber, len);	1101	buf = (U8 *)SvPVbyte (ber, len);
803	cur = buf;	1102	cur = buf;
804	end = buf + len;	1103	end = buf + len;
805		1104
806	RETVAL = decode_ber ();	1105	SV *tuple = decode_ber ();
		1106
		1107	EXTEND (SP, 2);
		1108	PUSHs (sv_2mortal (tuple));
		1109
		1110	if (ix)
		1111	PUSHs (sv_2mortal (newSViv (cur - buf)));
		1112	else if (cur != end)
		1113	error ("trailing garbage after BER value");
807	}	1114	}
808	OUTPUT: RETVAL
809		1115
810	void	1116	void
811	ber_is (SV tuple, SV klass = &PL_sv_undef, SV tag = &PL_sv_undef, SV constructed = &PL_sv_undef, SV *data = &PL_sv_undef)	1117	ber_is (SV tuple, SV klass = &PL_sv_undef, SV tag = &PL_sv_undef, SV flags = &PL_sv_undef, SV *data = &PL_sv_undef)
812	PPCODE:	1118	PPCODE:
813	{	1119	{
814	if (!SvOK (tuple))	1120	if (!SvOK (tuple))
815	XSRETURN_NO;	1121	XSRETURN_NO;
816		1122
…		…
818	croak ("ber_is: tuple must be BER tuple (array-ref)");	1124	croak ("ber_is: tuple must be BER tuple (array-ref)");
819		1125
820	AV av = (AV )SvRV (tuple);	1126	AV av = (AV )SvRV (tuple);
821		1127
822	XPUSHs (	1128	XPUSHs (
823	(!SvOK (klass) \|\| SvIV (AvARRAY (av)[BER_CLASS ]) == SvIV (klass))	1129	(!SvOK (klass) \|\| SvIV (AvARRAY (av)[BER_CLASS]) == SvIV (klass))
824	&& (!SvOK (tag) \|\| SvIV (AvARRAY (av)[BER_TAG ]) == SvIV (tag))	1130	&& (!SvOK (tag) \|\| SvIV (AvARRAY (av)[BER_TAG ]) == SvIV (tag))
825	&& (!SvOK (constructed) \|\| !SvIV (AvARRAY (av)[BER_CONSTRUCTED]) == !SvIV (constructed))	1131	&& (!SvOK (flags) \|\| !SvIV (AvARRAY (av)[BER_FLAGS]) == !SvIV (flags))
826	&& (!SvOK (data) \|\| sv_eq (AvARRAY (av)[BER_DATA ], data))	1132	&& (!SvOK (data) \|\| sv_eq (AvARRAY (av)[BER_DATA ], data))
827	? &PL_sv_yes : &PL_sv_undef);	1133	? &PL_sv_yes : &PL_sv_undef);
828	}	1134	}
829		1135
830	void	1136	void
831	ber_is_seq (SV *tuple)	1137	ber_is_seq (SV *tuple)
…		…
835	XSRETURN_UNDEF;	1141	XSRETURN_UNDEF;
836		1142
837	AV *av = ber_tuple (tuple);	1143	AV *av = ber_tuple (tuple);
838		1144
839	XPUSHs (	1145	XPUSHs (
840	SvIV (AvARRAY (av)[BER_CLASS ]) == ASN_UNIVERSAL	1146	SvIV (AvARRAY (av)[BER_CLASS]) == ASN_UNIVERSAL
841	&& SvIV (AvARRAY (av)[BER_TAG ]) == ASN_SEQUENCE	1147	&& SvIV (AvARRAY (av)[BER_TAG ]) == ASN_SEQUENCE
842	&& SvIV (AvARRAY (av)[BER_CONSTRUCTED])	1148	&& SvIV (AvARRAY (av)[BER_FLAGS])
843	? AvARRAY (av)[BER_DATA] : &PL_sv_undef);	1149	? AvARRAY (av)[BER_DATA] : &PL_sv_undef);
844	}	1150	}
845		1151
846	void	1152	void
847	ber_is_i32 (SV tuple, SV value = &PL_sv_undef)	1153	ber_is_int (SV tuple, SV value = &PL_sv_undef)
848	PPCODE:	1154	PPCODE:
849	{	1155	{
850	if (!SvOK (tuple))	1156	if (!SvOK (tuple))
851	XSRETURN_NO;	1157	XSRETURN_NO;
852		1158
853	AV *av = ber_tuple (tuple);	1159	AV *av = ber_tuple (tuple);
854		1160
855	IV data = SvIV (AvARRAY (av)[BER_DATA]);	1161	UV data = SvUV (AvARRAY (av)[BER_DATA]);
856		1162
857	XPUSHs (	1163	XPUSHs (
858	SvIV (AvARRAY (av)[BER_CLASS ]) == ASN_UNIVERSAL	1164	SvIV (AvARRAY (av)[BER_CLASS]) == ASN_UNIVERSAL
859	&& SvIV (AvARRAY (av)[BER_TAG ]) == ASN_INTEGER32	1165	&& SvIV (AvARRAY (av)[BER_TAG ]) == ASN_INTEGER
860	&& !SvIV (AvARRAY (av)[BER_CONSTRUCTED])	1166	&& !SvIV (AvARRAY (av)[BER_FLAGS])
861	&& (!SvOK (value) \|\| data == SvIV (value))	1167	&& (!SvOK (value) \|\| data == SvUV (value))
862	? sv_2mortal (data ? newSViv (data) : newSVpv ("0 but true", 0))	1168	? sv_2mortal (data ? newSVsv (AvARRAY (av)[BER_DATA]) : newSVpv ("0 but true", 0))
863	: &PL_sv_undef);	1169	: &PL_sv_undef);
864	}	1170	}
865		1171
866	void	1172	void
867	ber_is_oid (SV tuple, SV oid = &PL_sv_undef)	1173	ber_is_oid (SV tuple, SV oid = &PL_sv_undef)
…		…
871	XSRETURN_NO;	1177	XSRETURN_NO;
872		1178
873	AV *av = ber_tuple (tuple);	1179	AV *av = ber_tuple (tuple);
874		1180
875	XPUSHs (	1181	XPUSHs (
876	SvIV (AvARRAY (av)[BER_CLASS ]) == ASN_UNIVERSAL	1182	SvIV (AvARRAY (av)[BER_CLASS]) == ASN_UNIVERSAL
877	&& SvIV (AvARRAY (av)[BER_TAG ]) == ASN_OBJECT_IDENTIFIER	1183	&& SvIV (AvARRAY (av)[BER_TAG ]) == ASN_OBJECT_IDENTIFIER
878	&& !SvIV (AvARRAY (av)[BER_CONSTRUCTED])	1184	&& !SvIV (AvARRAY (av)[BER_FLAGS])
879	&& (!SvOK (oid) \|\| sv_eq (AvARRAY (av)[BER_DATA], oid))	1185	&& (!SvOK (oid) \|\| sv_eq (AvARRAY (av)[BER_DATA], oid))
880	? newSVsv (AvARRAY (av)[BER_DATA]) : &PL_sv_undef);	1186	? newSVsv (AvARRAY (av)[BER_DATA]) : &PL_sv_undef);
881	}	1187	}
882		1188
883	#############################################################################	1189	#############################################################################
884		1190
885	void	1191	void
886	ber_encode (SV *tuple)	1192	ber_encode (SV tuple, SV profile = &PL_sv_undef)
887	PPCODE:	1193	PPCODE:
888	{	1194	{
		1195	cur_profile = SvPROFILE (profile);
889	buf_sv = sv_2mortal (NEWSV (0, 256));	1196	buf_sv = sv_2mortal (NEWSV (0, 256));
890	SvPOK_only (buf_sv);	1197	SvPOK_only (buf_sv);
891	set_buf (buf_sv);	1198	set_buf (buf_sv);
892		1199
893	encode_ber (tuple);	1200	encode_ber (tuple);
…		…
895	SvCUR_set (buf_sv, cur - buf);	1202	SvCUR_set (buf_sv, cur - buf);
896	XPUSHs (buf_sv);	1203	XPUSHs (buf_sv);
897	}	1204	}
898		1205
899	SV *	1206	SV *
900	ber_i32 (IV iv)	1207	ber_int (SV *sv)
901	CODE:	1208	CODE:
902	{	1209	{
903	AV *av = newAV ();	1210	AV *av = newAV ();
904	av_fill (av, BER_ARRAYSIZE - 1);	1211	av_fill (av, BER_ARRAYSIZE - 1);
905	AvARRAY (av)[BER_CLASS ] = newSVcacheint (ASN_UNIVERSAL);	1212	AvARRAY (av)[BER_CLASS] = newSVcacheint (ASN_UNIVERSAL);
906	AvARRAY (av)[BER_TAG ] = newSVcacheint (ASN_INTEGER32);	1213	AvARRAY (av)[BER_TAG ] = newSVcacheint (ASN_INTEGER);
907	AvARRAY (av)[BER_CONSTRUCTED] = newSVcacheint (0);	1214	AvARRAY (av)[BER_FLAGS] = newSVcacheint (0);
908	AvARRAY (av)[BER_DATA ] = newSViv (iv);	1215	AvARRAY (av)[BER_DATA ] = newSVsv (sv);
909	RETVAL = newRV_noinc ((SV *)av);	1216	RETVAL = newRV_noinc ((SV *)av);
910	}	1217	}
911	OUTPUT: RETVAL	1218	OUTPUT: RETVAL
912		1219
913	# TODO: not arrayref, but elements?	1220	# TODO: not arrayref, but elements?
…		…
915	ber_seq (SV *arrayref)	1222	ber_seq (SV *arrayref)
916	CODE:	1223	CODE:
917	{	1224	{
918	AV *av = newAV ();	1225	AV *av = newAV ();
919	av_fill (av, BER_ARRAYSIZE - 1);	1226	av_fill (av, BER_ARRAYSIZE - 1);
920	AvARRAY (av)[BER_CLASS ] = newSVcacheint (ASN_UNIVERSAL);	1227	AvARRAY (av)[BER_CLASS] = newSVcacheint (ASN_UNIVERSAL);
921	AvARRAY (av)[BER_TAG ] = newSVcacheint (ASN_SEQUENCE);	1228	AvARRAY (av)[BER_TAG ] = newSVcacheint (ASN_SEQUENCE);
922	AvARRAY (av)[BER_CONSTRUCTED] = newSVcacheint (1);	1229	AvARRAY (av)[BER_FLAGS] = newSVcacheint (1);
923	AvARRAY (av)[BER_DATA ] = newSVsv (arrayref);	1230	AvARRAY (av)[BER_DATA ] = newSVsv (arrayref);
924	RETVAL = newRV_noinc ((SV *)av);	1231	RETVAL = newRV_noinc ((SV *)av);
925	}	1232	}
926	OUTPUT: RETVAL	1233	OUTPUT: RETVAL
927		1234
		1235	MODULE = Convert::BER::XS PACKAGE = Convert::BER::XS::Profile
		1236
		1237	SV *
		1238	new (SV *klass)
		1239	CODE:
		1240	RETVAL = profile_new ();
		1241	OUTPUT: RETVAL
		1242
		1243	void
		1244	set (SV *profile, int klass, int tag, int type)
		1245	CODE:
		1246	profile_set (SvPROFILE (profile), klass, tag, type);
		1247
		1248	IV
		1249	get (SV *profile, int klass, int tag)
		1250	CODE:
		1251	RETVAL = profile_lookup (SvPROFILE (profile), klass, tag);
		1252	OUTPUT: RETVAL
		1253
		1254	void
		1255	_set_default (SV *profile)
		1256	CODE:
		1257	default_profile = SvPROFILE (profile);
		1258
		1259

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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 1.29 by root, Tue Apr 23 19:44:12 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 1.29 by root, Tue Apr 23 19:44:12 2019 UTC