[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 1.32 by root, Tue Apr 23 21:20:25 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
		70	// tlow-level types this module can ecode the above (and more) into
66	enum {	71	enum {
		72	BER_TYPE_BYTES,
		73	BER_TYPE_UTF8,
		74	BER_TYPE_UCS2,
		75	BER_TYPE_UCS4,
		76	BER_TYPE_INT,
		77	BER_TYPE_OID,
		78	BER_TYPE_RELOID,
		79	BER_TYPE_NULL,
		80	BER_TYPE_BOOL,
		81	BER_TYPE_REAL,
		82	BER_TYPE_IPADDRESS,
		83	BER_TYPE_CROAK,
		84	};
		85
		86	// tuple array indices
		87	enum {
67	BER_CLASS = 0,	88	BER_CLASS = 0,
68	BER_TAG = 1,	89	BER_TAG = 1,
69	BER_CONSTRUCTED = 2,	90	BER_FLAGS = 2,
70	BER_DATA = 3,	91	BER_DATA = 3,
71	BER_ARRAYSIZE	92	BER_ARRAYSIZE
72	};	93	};
73		94
74	#define MAX_OID_STRLEN 4096	95	#define MAX_OID_STRLEN 4096
75		96
		97	typedef void profile_type;
		98
		99	static profile_type cur_profile, default_profile;
76	static SV *buf_sv; // encoding buffer	100	static SV *buf_sv; // encoding buffer
77	static U8 buf, cur, *end; // buffer start, current, end	101	static U8 buf, cur, *end; // buffer start, current, end
		102
		103	#if PERL_VERSION < 18
		104	# define utf8_to_uvchr_buf(s,e,l) utf8_to_uvchr (s, l)
		105	#endif
78		106
79	#if __GNUC__ >= 3	107	#if __GNUC__ >= 3
80	# define expect(expr,value) __builtin_expect ((expr), (value))	108	# define expect(expr,value) __builtin_expect ((expr), (value))
81	# define INLINE static inline	109	# define INLINE static inline
82	#else	110	#else
85	#endif	113	#endif
86		114
87	#define expect_false(expr) expect ((expr) != 0, 0)	115	#define expect_false(expr) expect ((expr) != 0, 0)
88	#define expect_true(expr) expect ((expr) != 0, 1)	116	#define expect_true(expr) expect ((expr) != 0, 1)
89		117
		118	/////////////////////////////////////////////////////////////////////////////
		119
		120	static SV *sviv_cache[32];
		121
90	// for "small" integers, return a readonly sv, otherwise create a new one	122	// for "small" integers, return a readonly sv, otherwise create a new one
91	static SV *newSVcacheint (int val)	123	static SV *newSVcacheint (int val)
92	{	124	{
93	static SV *cache[32];
94
95	if (expect_false (val < 0 \|\| val >= sizeof (cache)))	125	if (expect_false (val < 0 \|\| val >= sizeof (sviv_cache)))
96	return newSViv (val);	126	return newSViv (val);
97		127
98	if (expect_false (!cache [val]))	128	if (expect_false (!sviv_cache [val]))
99	{	129	{
100	cache [val] = newSVuv (val);	130	sviv_cache [val] = newSVuv (val);
101	SvREADONLY_on (cache [val]);	131	SvREADONLY_on (sviv_cache [val]);
102	}	132	}
103		133
104	return SvREFCNT_inc_NN (cache [val]);	134	return SvREFCNT_inc_NN (sviv_cache [val]);
		135	}
		136
		137	/////////////////////////////////////////////////////////////////////////////
		138
		139	static HV *profile_stash;
		140
		141	static profile_type *
		142	SvPROFILE (SV *profile)
		143	{
		144	if (!SvOK (profile))
		145	return default_profile;
		146
		147	if (!SvROK (profile))
		148	croak ("Convert::BER::XS::Profile expected");
		149
		150	profile = SvRV (profile);
		151
		152	if (SvSTASH (profile) != profile_stash)
		153	croak ("Convert::BER::XS::Profile expected");
		154
		155	return (void *)profile;
		156	}
		157
		158	static int
		159	profile_lookup (profile_type *profile, int klass, int tag)
		160	{
		161	SV sv = (SV )profile;
		162	U32 idx = (tag << 2) + klass;
		163
		164	if (expect_false (idx >= SvCUR (sv)))
		165	return BER_TYPE_BYTES;
		166
		167	return SvPVX (sv)[idx];
		168	}
		169
		170	static void
		171	profile_set (profile_type *profile, int klass, int tag, int type)
		172	{
		173	SV sv = (SV )profile;
		174	U32 idx = (tag << 2) + klass;
		175	STRLEN oldlen = SvCUR (sv);
		176	STRLEN newlen = idx + 2;
		177
		178	if (idx >= oldlen)
		179	{
		180	sv_grow (sv, newlen);
		181	memset (SvPVX (sv) + oldlen, BER_TYPE_BYTES, newlen - oldlen);
		182	SvCUR_set (sv, newlen);
		183	}
		184
		185	SvPVX (sv)[idx] = type;
		186	}
		187
		188	static SV *
		189	profile_new (void)
		190	{
		191	SV *sv = newSVpvn ("", 0);
		192
		193	static const struct {
		194	int klass;
		195	int tag;
		196	int type;
		197	} *celem, default_map[] = {
		198	{ ASN_UNIVERSAL, ASN_BOOLEAN , BER_TYPE_BOOL },
		199	{ ASN_UNIVERSAL, ASN_INTEGER , BER_TYPE_INT },
		200	{ ASN_UNIVERSAL, ASN_NULL , BER_TYPE_NULL },
		201	{ ASN_UNIVERSAL, ASN_OBJECT_IDENTIFIER, BER_TYPE_OID },
		202	{ ASN_UNIVERSAL, ASN_RELATIVE_OID , BER_TYPE_RELOID },
		203	{ ASN_UNIVERSAL, ASN_REAL , BER_TYPE_REAL },
		204	{ ASN_UNIVERSAL, ASN_ENUMERATED , BER_TYPE_INT },
		205	{ ASN_UNIVERSAL, ASN_UTF8_STRING , BER_TYPE_UTF8 },
		206	{ ASN_UNIVERSAL, ASN_BMP_STRING , BER_TYPE_UCS2 },
		207	{ ASN_UNIVERSAL, ASN_UNIVERSAL_STRING , BER_TYPE_UCS4 },
		208	};
		209
		210	for (celem = default_map + sizeof (default_map) / sizeof (default_map [0]); celem-- > default_map; )
		211	profile_set ((profile_type *)sv, celem->klass, celem->tag, celem->type);
		212
		213	return sv_bless (newRV_noinc (sv), profile_stash);
105	}	214	}
106		215
107	/////////////////////////////////////////////////////////////////////////////	216	/////////////////////////////////////////////////////////////////////////////
108	// decoder	217	// decoder
109		218
…		…
120	error ("unexpected end of message buffer");	229	error ("unexpected end of message buffer");
121	}	230	}
122		231
123	// get_* functions fetch something from the buffer	232	// get_* functions fetch something from the buffer
124	// decode_* functions use get_* fun ctions to decode ber values	233	// decode_* functions use get_* fun ctions to decode ber values
		234
		235	// get single octet
		236	static U8
		237	get_u8 (void)
		238	{
		239	if (cur == end)
		240	error ("unexpected end of message buffer");
		241
		242	return *cur++;
		243	}
125		244
126	// get n octets	245	// get n octets
127	static U8 *	246	static U8 *
128	get_n (UV count)	247	get_n (UV count)
129	{	248	{
…		…
131	U8 *res = cur;	250	U8 *res = cur;
132	cur += count;	251	cur += count;
133	return res;	252	return res;
134	}	253	}
135		254
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")	255	// get ber-encoded integer (i.e. pack "w")
147	static U32	256	static UV
148	get_w (void)	257	get_w (void)
149	{	258	{
150	U32 res = 0;	259	UV res = 0;
		260	U8 c = get_u8 ();
		261
		262	if (expect_false (c == 0x80))
		263	error ("illegal BER padding (X.690 8.1.2.4.2, 8.19.2)");
151		264
152	for (;;)	265	for (;;)
153	{	266	{
154	U8 c = get_u8 ();	267	if (expect_false (res >> UVSIZE * 8 - 7))
		268	error ("BER variable length integer overflow");
		269
155	res = (res << 7) \| (c & 0x7f);	270	res = (res << 7) \| (c & 0x7f);
156		271
157	if (!(c & 0x80))	272	if (expect_true (!(c & 0x80)))
158	return res;	273	return res;
159	}
160	}
161		274
		275	c = get_u8 ();
		276	}
		277	}
		278
162	static U32	279	static UV
163	get_length (void)	280	get_length (void)
164	{	281	{
165	U32 res = get_u8 ();	282	UV res = get_u8 ();
166		283
167	if (res & 0x80)	284	if (expect_false (res & 0x80))
168	{	285	{
169	int cnt = res & 0x7f;	286	U8 cnt = res & 0x7f;
		287
		288	// this genewrates quite ugly code, but the overhead
		289	// of copying the bytes for these lengths is probably so high
		290	// that a slightly inefficient get_length won't matter.
		291
		292	if (expect_false (cnt == 0))
		293	error ("illegal use of indefinite BER length form in primitive encoding (X.690 8.1.3.2)");
		294
		295	if (expect_false (cnt > UVSIZE))
		296	error ("BER value length too long (must fit into UV) or BER reserved value in length (X.690 8.1.3.5)");
		297
		298	want (cnt);
		299
170	res = 0;	300	res = 0;
171		301	do
172	switch (cnt)	302	res = (res << 8) \| *cur++;
173	{	303	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	}	304	}
188		305
189	return res;	306	return res;
190	}	307	}
191		308
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 *	309	static SV *
220	decode_integer32 (void)	310	decode_int (UV len)
221	{	311	{
222	return newSViv ((I32)get_integer32 ());	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 (UV len)
227	{	343	{
228	return newSVuv ((U32)get_integer32 ());	344	return newSVpvn ((char *)get_n (len), len);
229	}	345	}
230		346
231	#if IVSIZE >= 8
232
233	static U64TYPE
234	get_integer64 (void)
235	{
236	U32 length = 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);
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);
280	}
281
282	// gelper for decode_object_identifier	347	// helper for decode_object_identifier
283	static char *	348	static char *
284	write_uv (char *buf, U32 u)	349	write_uv (char *buf, UV u)
285	{	350	{
286	// the one-digit case is absolutely predominant, so this pays off (hopefully)	351	// the one-digit case is absolutely predominant, so this pays off (hopefully)
287	if (u < 10)	352	if (expect_true (u < 10))
288	*buf++ = u + '0';	353	*buf++ = u + '0';
289	else	354	else
290	{	355	{
		356	// this could be done much faster using branchless fixed-point arithmetics
291	char *beg = buf;	357	char *beg = buf;
292		358
293	do	359	do
294	{	360	{
295	*buf++ = u % 10 + '0';	361	*buf++ = u % 10 + '0';
296	u /= 10;	362	u /= 10;
297	}	363	}
298	while (u);	364	while (u);
299		365
300	// reverse digits	366	// reverse digits
301	for (char *ptr = buf; --ptr != beg; ++beg)	367	char *ptr = buf;
		368	while (--ptr > beg)
302	{	369	{
303	char c = *ptr;	370	char c = *ptr;
304	ptr = beg;	371	ptr = beg;
305	*beg = c;	372	*beg = c;
		373	++beg;
306	}	374	}
307	}	375	}
308		376
309	return buf;	377	return buf;
310	}	378	}
311		379
312	static SV *	380	static SV *
313	decode_object_identifier (void)	381	decode_oid (UV len, int relative)
314	{	382	{
315	U32 length = get_length ();
316
317	if (length <= 0)	383	if (len <= 0)
318	{	384	{
319	error ("OBJECT IDENTIFIER length equal to zero");	385	error ("BER_TYPE_OID length must not be zero");
320	return &PL_sv_undef;	386	return &PL_sv_undef;
321	}	387	}
322		388
323	U8 *end = cur + length;	389	U8 *end = cur + len;
324	U32 w = get_w ();	390	UV w = get_w ();
325		391
326	static char oid[MAX_OID_STRLEN]; // must be static	392	static char oid[MAX_OID_STRLEN]; // static, because too large for stack
327	char *app = oid;	393	char *app = oid;
328		394
		395	if (relative)
329	app = write_uv (app, (U8)w / 40);	396	app = write_uv (app, w);
		397	else
		398	{
		399	UV w1, w2;
		400
		401	if (w < 2 * 40)
		402	(w1 = w / 40), (w2 = w % 40);
		403	else
		404	(w1 = 2), (w2 = w - 2 * 40);
		405
		406	app = write_uv (app, w1);
330	*app++ = '.';	407	*app++ = '.';
331	app = write_uv (app, (U8)w % 40);	408	app = write_uv (app, w2);
		409	}
332		410
		411	while (cur < end)
		412	{
333	// we assume an oid component is never > 64 bytes	413	// we assume an oid component is never > 64 digits
334	while (cur < end && oid + sizeof (oid) - app > 64)	414	if (oid + sizeof (oid) - app < 64)
335	{	415	croak ("BER_TYPE_OID to long to decode");
		416
336	w = get_w ();	417	w = get_w ();
337	*app++ = '.';	418	*app++ = '.';
338	app = write_uv (app, w);	419	app = write_uv (app, w);
339	}	420	}
340		421
341	return newSVpvn (oid, app - oid);	422	return newSVpvn (oid, app - oid);
342	}	423	}
343		424
		425	// TODO: this is unacceptably slow
344	static SV *	426	static SV *
		427	decode_ucs (UV len, int chrsize)
		428	{
		429	if (len & (chrsize - 1))
		430	croak ("BER_TYPE_UCS has an invalid number of octets (%d)", len);
		431
		432	SV *res = NEWSV (0, 0);
		433
		434	while (len)
		435	{
		436	U8 b1 = get_u8 ();
		437	U8 b2 = get_u8 ();
		438	U32 chr = (b1 << 8) \| b2;
		439
		440	if (chrsize == 4)
		441	{
		442	U8 b3 = get_u8 ();
		443	U8 b4 = get_u8 ();
		444	chr = (chr << 16) \| (b3 << 8) \| b4;
		445	}
		446
		447	U8 uchr [UTF8_MAXBYTES];
		448	int uclen = uvuni_to_utf8 (uchr, chr) - uchr;
		449
		450	sv_catpvn (res, (const char *)uchr, uclen);
		451	len -= chrsize;
		452	}
		453
		454	SvUTF8_on (res);
		455
		456	return res;
		457	}
		458
		459	static SV *
345	decode_ber ()	460	decode_ber (void)
346	{	461	{
347	int identifier = get_u8 ();	462	int identifier = get_u8 ();
348		463
349	SV *res;	464	SV *res;
350		465
351	int constructed = identifier & ASN_CONSTRUCTED;	466	int constructed = identifier & ASN_CONSTRUCTED;
352	int klass = identifier & ASN_CLASS_MASK;	467	int klass = (identifier & ASN_CLASS_MASK) >> ASN_CLASS_SHIFT;
353	int tag = identifier & ASN_TAG_MASK;	468	int tag = identifier & ASN_TAG_MASK;
354		469
355	if (tag == ASN_TAG_BER)	470	if (tag == ASN_TAG_BER)
356	tag = get_w ();	471	tag = get_w ();
357		472
358	if (tag == ASN_TAG_BER)
359	tag = get_w ();
360
361	if (constructed)	473	if (constructed)
362	{	474	{
363	U32 len = get_length ();	475	want (1);
364	U32 seqend = (cur - buf) + len;
365	AV av = (AV )sv_2mortal ((SV *)newAV ());	476	AV av = (AV )sv_2mortal ((SV *)newAV ());
366		477
367	while (cur < buf + seqend)	478	if (expect_false (*cur == 0x80))
		479	{
		480	// indefinite length
		481	++cur;
		482
		483	for (;;)
		484	{
		485	want (2);
		486	if (!cur [0] && !cur [1])
		487	{
		488	cur += 2;
		489	break;
		490	}
		491
368	av_push (av, decode_ber ());	492	av_push (av, decode_ber ());
		493	}
		494	}
		495	else
		496	{
		497	UV len = get_length ();
		498	UV seqend = (cur - buf) + len;
369		499
370	if (cur > buf + seqend)	500	while (cur < buf + seqend)
		501	av_push (av, decode_ber ());
		502
		503	if (expect_false (cur > buf + seqend))
371	croak ("constructed type %02x overflow (%x %x)\n", identifier, cur - buf, seqend);	504	croak ("CONSTRUCTED type %02x length overflow (0x%x 0x%x)\n", identifier, (int)(cur - buf), (int)seqend);
		505	}
372		506
373	res = newRV_inc ((SV *)av);	507	res = newRV_inc ((SV *)av);
374	}	508	}
375	else	509	else
376	switch (identifier)	510	{
		511	UV len = get_length ();
		512
		513	switch (profile_lookup (cur_profile, klass, tag))
377	{	514	{
378	case ASN_NULL:	515	case BER_TYPE_NULL:
		516	if (expect_false (len))
		517	croak ("BER_TYPE_NULL value with non-zero length %d encountered (X.690 8.8.2)", len);
		518
379	res = &PL_sv_undef;	519	res = &PL_sv_undef;
380	break;	520	break;
381		521
382	case ASN_OBJECT_IDENTIFIER:	522	case BER_TYPE_BOOL:
383	res = decode_object_identifier ();	523	if (expect_false (len != 1))
		524	croak ("BER_TYPE_BOOLEAN value with invalid length %d encountered (X.690 8.2.1)", len);
		525
		526	res = newSVcacheint (!!get_u8 ());
384	break;	527	break;
385		528
386	case ASN_INTEGER32:	529	case BER_TYPE_OID:
387	res = decode_integer32 ();	530	res = decode_oid (len, 0);
388	break;	531	break;
389		532
390	case ASN_APPLICATION \| SNMP_UNSIGNED32:	533	case BER_TYPE_RELOID:
391	case ASN_APPLICATION \| SNMP_COUNTER32:	534	res = decode_oid (len, 1);
392	case ASN_APPLICATION \| SNMP_TIMETICKS:
393	res = decode_unsigned32 ();
394	break;	535	break;
395		536
396	#if 0 // handled by default case	537	case BER_TYPE_INT:
397	case ASN_OCTET_STRING:
398	case ASN_APPLICATION \| ASN_IPADDRESS:
399	case ASN_APPLICATION \| ASN_OPAQUE:
400	res = decode_octet_string ();	538	res = decode_int (len);
401	break;	539	break;
402	#endif
403		540
404	case ASN_APPLICATION \| SNMP_COUNTER64:	541	case BER_TYPE_UTF8:
405	res = decode_integer64 ();	542	res = decode_data (len);
		543	SvUTF8_on (res);
406	break;	544	break;
407		545
408	default:	546	case BER_TYPE_BYTES:
409	res = decode_octet_string ();	547	res = decode_data (len);
410	break;	548	break;
		549
		550	case BER_TYPE_IPADDRESS:
		551	{
		552	if (len != 4)
		553	croak ("BER_TYPE_IPADDRESS type with invalid length %d encountered (RFC 2578 7.1.5)", len);
		554
		555	U8 *data = get_n (4);
		556	res = newSVpvf ("%d.%d.%d.%d", data [0], data [1], data [2], data [3]);
		557	}
		558	break;
		559
		560	case BER_TYPE_UCS2:
		561	res = decode_ucs (len, 2);
		562	break;
		563
		564	case BER_TYPE_UCS4:
		565	res = decode_ucs (len, 4);
		566	break;
		567
		568	case BER_TYPE_REAL:
		569	error ("BER_TYPE_REAL not implemented");
		570
		571	case BER_TYPE_CROAK:
		572	croak ("class/tag %d/%d mapped to BER_TYPE_CROAK", klass, tag);
		573
		574	default:
		575	croak ("unconfigured/unsupported class/tag %d/%d", klass, tag);
411	}	576	}
		577	}
412		578
413	AV *av = newAV ();	579	AV *av = newAV ();
414	av_fill (av, BER_ARRAYSIZE - 1);	580	av_fill (av, BER_ARRAYSIZE - 1);
415	AvARRAY (av)[BER_CLASS ] = newSVcacheint (klass >> ASN_CLASS_SHIFT);	581	AvARRAY (av)[BER_CLASS] = newSVcacheint (klass);
416	AvARRAY (av)[BER_TAG ] = newSVcacheint (tag);	582	AvARRAY (av)[BER_TAG ] = newSVcacheint (tag);
417	AvARRAY (av)[BER_CONSTRUCTED] = newSVcacheint (constructed ? 1 : 0);	583	AvARRAY (av)[BER_FLAGS] = newSVcacheint (constructed ? 1 : 0);
418	AvARRAY (av)[BER_DATA ] = res;	584	AvARRAY (av)[BER_DATA ] = res;
419		585
420	return newRV_noinc ((SV *)av);	586	return newRV_noinc ((SV *)av);
421	}	587	}
422		588
423	/////////////////////////////////////////////////////////////////////////////	589	/////////////////////////////////////////////////////////////////////////////
…		…
428	strlen_sum (STRLEN l1, STRLEN l2)	594	strlen_sum (STRLEN l1, STRLEN l2)
429	{	595	{
430	size_t sum = l1 + l2;	596	size_t sum = l1 + l2;
431		597
432	if (sum < (size_t)l2 \|\| sum != (size_t)(STRLEN)sum)	598	if (sum < (size_t)l2 \|\| sum != (size_t)(STRLEN)sum)
433	croak ("JSON::XS: string size overflow");	599	croak ("Convert::BER::XS: string size overflow");
434		600
435	return sum;	601	return sum;
436	}	602	}
437		603
438	static void	604	static void
439	set_buf (SV *sv)	605	set_buf (SV *sv)
440	{	606	{
441	STRLEN len;	607	STRLEN len;
442	buf_sv = sv;	608	buf_sv = sv;
443	buf = SvPVbyte (buf_sv, len);	609	buf = (U8 *)SvPVbyte (buf_sv, len);
444	cur = buf;	610	cur = buf;
445	end = buf + len;	611	end = buf + len;
446	}	612	}
447		613
448	/* similar to SvGROW, but somewhat safer and guarantees exponential realloc strategy */	614	/* similar to SvGROW, but somewhat safer and guarantees exponential realloc strategy */
…		…
462	need (STRLEN len)	628	need (STRLEN len)
463	{	629	{
464	if (expect_false ((uintptr_t)(end - cur) < len))	630	if (expect_false ((uintptr_t)(end - cur) < len))
465	{	631	{
466	STRLEN pos = cur - buf;	632	STRLEN pos = cur - buf;
467	buf = my_sv_grow (buf_sv, pos, len);	633	buf = (U8 *)my_sv_grow (buf_sv, pos, len);
468	cur = buf + pos;	634	cur = buf + pos;
469	end = buf + SvLEN (buf_sv) - 1;	635	end = buf + SvLEN (buf_sv) - 1;
470	}	636	}
471	}	637	}
472		638
…		…
476	need (1);	642	need (1);
477	*cur++ = val;	643	*cur++ = val;
478	}	644	}
479		645
480	static void	646	static void
481	put_w_nocheck (U32 val)	647	put_w_nocheck (UV val)
482	{	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
483	cur = (val >> 7 4) \| 0x80; cur += val >= (1 << (7 * 4));	656	cur = (val >> 7 4) \| 0x80; cur += val >= ((UV)1 << (7 * 4));
484	cur = (val >> 7 3) \| 0x80; cur += val >= (1 << (7 * 3));	657	cur = (val >> 7 3) \| 0x80; cur += val >= ((UV)1 << (7 * 3));
485	cur = (val >> 7 2) \| 0x80; cur += val >= (1 << (7 * 2));	658	cur = (val >> 7 2) \| 0x80; cur += val >= ((UV)1 << (7 * 2));
486	cur = (val >> 7 1) \| 0x80; cur += val >= (1 << (7 * 1));	659	cur = (val >> 7 1) \| 0x80; cur += val >= ((UV)1 << (7 * 1));
487	*cur = val & 0x7f; cur += 1;	660	*cur = val & 0x7f; cur += 1;
488	}	661	}
489		662
490	static void	663	static void
491	put_w (U32 val)	664	put_w (UV val)
492	{	665	{
493	need (5); // we only handle up to 5 bytes	666	need (5); // we only handle up to 5 bytes
494		667
495	put_w_nocheck (val);	668	put_w_nocheck (val);
496	}	669	}
497		670
498	static U8 *	671	static U8 *
499	put_length_at (U32 val, U8 *cur)	672	put_length_at (UV val, U8 *cur)
500	{	673	{
501	if (val < 0x7fU)	674	if (val <= 0x7fU)
502	*cur++ = val;	675	*cur++ = val;
503	else	676	else
504	{	677	{
505	U8 *lenb = cur++;	678	U8 *lenb = cur++;
506		679
507	cur = val >> 24; cur += cur > 0;	680	#if UVSIZE > 4
508	cur = val >> 16; cur += cur > 0;	681	cur = val >> 56; cur += val >= ((UV)1 << (8 7));
509	cur = val >> 8; cur += cur > 0;	682	cur = val >> 48; cur += val >= ((UV)1 << (8 6));
		683	cur = val >> 40; cur += val >= ((UV)1 << (8 5));
		684	cur = val >> 32; cur += val >= ((UV)1 << (8 4));
		685	#endif
		686	cur = val >> 24; cur += val >= ((UV)1 << (8 3));
		687	cur = val >> 16; cur += val >= ((UV)1 << (8 2));
		688	cur = val >> 8; cur += val >= ((UV)1 << (8 1));
510	*cur = val ; cur += 1;	689	*cur = val ; cur += 1;
511		690
512	*lenb = 0x80 + cur - lenb - 1;	691	*lenb = 0x80 + cur - lenb - 1;
513	}	692	}
514		693
515	return cur;	694	return cur;
516	}	695	}
517		696
518	static void	697	static void
519	put_length (U32 val)	698	put_length (UV val)
520	{	699	{
521	need (5);	700	need (9 + val);
522	cur = put_length_at (val, cur);	701	cur = put_length_at (val, cur);
523	}	702	}
524		703
525	// return how many bytes the encoded length requires	704	// return how many bytes the encoded length requires
526	static int length_length (U32 val)	705	static int length_length (UV val)
527	{	706	{
528	return val < 0x7fU	707	// use hashing with a DeBruin sequence, anyone?
		708	return expect_true (val <= 0x7fU)
529	? 1	709	? 1
530	: 2 + (val > 0xffU) + (val > 0xffffU) + (val > 0xffffffU);	710	: 2
		711	+ (val > 0x000000000000ffU)
		712	+ (val > 0x0000000000ffffU)
		713	+ (val > 0x00000000ffffffU)
		714	#if UVSIZE > 4
		715	+ (val > 0x000000ffffffffU)
		716	+ (val > 0x0000ffffffffffU)
		717	+ (val > 0x00ffffffffffffU)
		718	+ (val > 0xffffffffffffffU)
		719	#endif
		720	;
531	}	721	}
532		722
533	static void	723	static void
534	encode_octet_string (SV *sv)	724	encode_data (const char *ptr, STRLEN len)
535	{	725	{
536	STRLEN len;
537	char *ptr = SvPVbyte (sv, len);
538
539	put_length (len);	726	put_length (len);
540	need (len);
541	memcpy (cur, ptr, len);	727	memcpy (cur, ptr, len);
542	cur += len;	728	cur += len;
543	}	729	}
544		730
545	static void	731	static void
546	encode_integer32 (IV iv)	732	encode_uv (UV uv)
547	{	733	{
548	need (5);	734	}
		735
		736	static void
		737	encode_int (SV *sv)
		738	{
		739	need (8 + 1 + 1); // 64 bit + length + extra 0
		740
		741	if (expect_false (!SvIOK (sv)))
		742	sv_2iv_flags (sv, 0);
549		743
550	U8 *lenb = cur++;	744	U8 *lenb = cur++;
551		745
552	if (iv < 0)	746	if (SvIOK_notUV (sv))
553	{	747	{
		748	IV iv = SvIVX (sv);
		749
		750	if (expect_false (iv < 0))
		751	{
554	// get two's complement bit pattern - works even on hypthetical non-2c machines	752	// get two's complement bit pattern - works even on hypothetical non-2c machines
555	U32 uv = iv;	753	UV uv = iv;
556		754
		755	#if UVSIZE > 4
		756	*cur = uv >> 56; cur += !!(~uv & 0xff80000000000000U);
		757	*cur = uv >> 48; cur += !!(~uv & 0xffff800000000000U);
		758	*cur = uv >> 40; cur += !!(~uv & 0xffffff8000000000U);
		759	*cur = uv >> 32; cur += !!(~uv & 0xffffffff80000000U);
		760	#endif
557	*cur = uv >> 24; cur += !!(~uv & 0xff800000U);	761	*cur = uv >> 24; cur += !!(~uv & 0xffffffffff800000U);
558	*cur = uv >> 16; cur += !!(~uv & 0xffff8000U);	762	*cur = uv >> 16; cur += !!(~uv & 0xffffffffffff8000U);
559	*cur = uv >> 8; cur += !!(~uv & 0xffffff80U);	763	*cur = uv >> 8; cur += !!(~uv & 0xffffffffffffff80U);
560	*cur = uv ; cur += 1;	764	*cur = uv ; cur += 1;
561	}	765
562	else	766	*lenb = cur - lenb - 1;
		767
		768	return;
		769	}
563	{	770	}
564	cur = iv >> 24; cur += cur > 0;	771
565	cur = iv >> 16; cur += cur > 0;	772	UV uv = SvUV (sv);
566	cur = iv >> 8; cur += cur > 0;	773
		774	// prepend an extra 0 if the high bit is 1
		775	cur = 0; cur += !!(uv & ((UV)1 << (UVSIZE 8 - 1)));
		776
		777	#if UVSIZE > 4
		778	*cur = uv >> 56; cur += !!(uv & 0xff80000000000000U);
		779	*cur = uv >> 48; cur += !!(uv & 0xffff800000000000U);
		780	*cur = uv >> 40; cur += !!(uv & 0xffffff8000000000U);
		781	*cur = uv >> 32; cur += !!(uv & 0xffffffff80000000U);
		782	#endif
		783	*cur = uv >> 24; cur += !!(uv & 0xffffffffff800000U);
		784	*cur = uv >> 16; cur += !!(uv & 0xffffffffffff8000U);
		785	*cur = uv >> 8; cur += !!(uv & 0xffffffffffffff80U);
567	*cur = iv ; cur += 1;	786	*cur = uv ; cur += 1;
568	}
569		787
570	*lenb = cur - lenb - 1;	788	*lenb = cur - lenb - 1;
571	}	789	}
572		790
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	791	// we don't know the length yet, so we optimistically
593	// assume the length will need one octet later. if that	792	// assume the length will need one octet later. If that
594	// turns out to be wrong, we memove as needed.	793	// turns out to be wrong, we memmove as needed.
595	// mark the beginning	794	// mark the beginning
596	static STRLEN	795	static STRLEN
597	len_fixup_mark ()	796	len_fixup_mark (void)
598	{	797	{
599	return cur++ - buf;	798	return cur++ - buf;
600	}	799	}
601		800
602	// patch up the length	801	// patch up the length
…		…
631		830
632	return str;	831	return str;
633	}	832	}
634		833
635	static void	834	static void
636	encode_object_identifier (SV *oid)	835	encode_oid (SV *oid, int relative)
637	{	836	{
638	STRLEN slen;	837	STRLEN len;
639	char *ptr = SvPV (oid, slen); // utf8 vs. bytes does not matter	838	char *ptr = SvPV (oid, len); // utf8 vs. bytes does not matter
640		839
641	// we need at most as many octets as the string form	840	// we need at most as many octets as the string form
642	need (slen + 1);	841	need (len + 1);
643	STRLEN mark = len_fixup_mark ();	842	STRLEN mark = len_fixup_mark ();
644		843
645	UV w1, w2;	844	UV w1, w2;
646		845
		846	if (!relative)
		847	{
647	ptr = read_uv (ptr, &w1);	848	ptr = read_uv (ptr, &w1);
648	ptr = read_uv (ptr, &w2);	849	ptr = read_uv (ptr, &w2);
649		850
650	put_w_nocheck (w1 * 40 + w2);	851	put_w_nocheck (w1 * 40 + w2);
		852	}
651		853
652	while (*ptr)	854	while (*ptr)
653	{	855	{
654	ptr = read_uv (ptr, &w1);	856	ptr = read_uv (ptr, &w1);
655	put_w_nocheck (w1);	857	put_w_nocheck (w1);
656	}	858	}
657		859
658	len_fixup (mark);	860	len_fixup (mark);
659	}	861	}
660		862
661	// checkl whether an SV is a BER tuple and returns its AV *	863	// check whether an SV is a BER tuple and returns its AV *
662	static AV *	864	static AV *
663	ber_tuple (SV *tuple)	865	ber_tuple (SV *tuple)
664	{	866	{
665	SV *rv;	867	SV *rv;
666		868
…		…
675		877
676	return (AV *)rv;	878	return (AV *)rv;
677	}	879	}
678		880
679	static void	881	static void
		882	encode_ucs (SV *data, int chrsize)
		883	{
		884	STRLEN uchars = sv_len_utf8 (data);
		885	STRLEN len;;
		886	char *ptr = SvPVutf8 (data, len);
		887
		888	put_length (uchars * chrsize);
		889
		890	while (uchars--)
		891	{
		892	STRLEN uclen;
		893	UV uchr = utf8_to_uvchr_buf ((U8 )ptr, (U8 )ptr + len, &uclen);
		894
		895	ptr += uclen;
		896	len -= uclen;
		897
		898	if (chrsize == 4)
		899	{
		900	*cur++ = uchr >> 24;
		901	*cur++ = uchr >> 16;
		902	}
		903
		904	*cur++ = uchr >> 8;
		905	*cur++ = uchr;
		906	}
		907	}
		908	static void
680	encode_ber (SV *tuple)	909	encode_ber (SV *tuple)
681	{	910	{
682	AV *av = ber_tuple (tuple);	911	AV *av = ber_tuple (tuple);
683		912
684	int klass = SvIV (AvARRAY (av)[BER_CLASS]);	913	int klass = SvIV (AvARRAY (av)[BER_CLASS]);
685	int tag = SvIV (AvARRAY (av)[BER_TAG]);	914	int tag = SvIV (AvARRAY (av)[BER_TAG]);
686	int constructed = SvIV (AvARRAY (av)[BER_CONSTRUCTED]) ? ASN_CONSTRUCTED : 0;	915	int constructed = SvIV (AvARRAY (av)[BER_FLAGS]) & 1 ? ASN_CONSTRUCTED : 0;
687	SV *data = AvARRAY (av)[BER_DATA];	916	SV *data = AvARRAY (av)[BER_DATA];
688		917
689	int identifier = (klass << ASN_CLASS_SHIFT) \| constructed;	918	int identifier = (klass << ASN_CLASS_SHIFT) \| constructed;
690		919
691	if (expect_false (tag >= ASN_TAG_BER))	920	if (expect_false (tag >= ASN_TAG_BER))
…		…
702	// and adjust later	931	// and adjust later
703	need (1);	932	need (1);
704	STRLEN mark = len_fixup_mark ();	933	STRLEN mark = len_fixup_mark ();
705		934
706	if (expect_false (!SvROK (data) \|\| SvTYPE (SvRV (data)) != SVt_PVAV))	935	if (expect_false (!SvROK (data) \|\| SvTYPE (SvRV (data)) != SVt_PVAV))
707	croak ("BER constructed data must be array-reference");	936	croak ("BER CONSTRUCTED data must be array-reference");
708		937
709	AV av = (AV )SvRV (data);	938	AV av = (AV )SvRV (data);
710	int fill = AvFILL (av);	939	int fill = AvFILL (av);
711		940
712	if (expect_false (SvRMAGICAL (av)))	941	if (expect_false (SvRMAGICAL (av)))
713	croak ("BER constructed data must not be tied");	942	croak ("BER CONSTRUCTED data must not be tied");
714		943
		944	int i;
715	for (int i = 0; i <= fill; ++i)	945	for (i = 0; i <= fill; ++i)
716	encode_ber (AvARRAY (av)[i]);	946	encode_ber (AvARRAY (av)[i]);
717		947
718	len_fixup (mark);	948	len_fixup (mark);
719	}	949	}
720	else	950	else
721	switch (identifier \| tag)	951	switch (profile_lookup (cur_profile, klass, tag))
722	{	952	{
723	case ASN_NULL:	953	case BER_TYPE_NULL:
724	put_length (0);	954	put_length (0);
725	break;	955	break;
726		956
727	case ASN_OBJECT_IDENTIFIER:	957	case BER_TYPE_BOOL:
728	encode_object_identifier (data);	958	put_length (1);
		959	*cur++ = SvTRUE (data) ? 0xff : 0x00; // 0xff = DER/CER
729	break;	960	break;
730		961
731	case ASN_INTEGER32:	962	case BER_TYPE_OID:
732	encode_integer32 (SvIV (data));	963	encode_oid (data, 0);
733	break;	964	break;
734		965
735	case ASN_APPLICATION \| SNMP_UNSIGNED32:	966	case BER_TYPE_RELOID:
736	case ASN_APPLICATION \| SNMP_COUNTER32:	967	encode_oid (data, 1);
737	case ASN_APPLICATION \| SNMP_TIMETICKS:
738	case ASN_APPLICATION \| SNMP_COUNTER64:
739	encode_unsigned64 (SvUV (data));
740	break;	968	break;
741		969
		970	case BER_TYPE_INT:
		971	encode_int (data);
		972	break;
		973
		974	case BER_TYPE_BYTES:
		975	{
		976	STRLEN len;
		977	const char *ptr = SvPVbyte (data, len);
		978	encode_data (ptr, len);
		979	}
		980	break;
		981
		982	case BER_TYPE_UTF8:
		983	{
		984	STRLEN len;
		985	const char *ptr = SvPVutf8 (data, len);
		986	encode_data (ptr, len);
		987	}
		988	break;
		989
		990	case BER_TYPE_IPADDRESS:
		991	{
		992	U8 ip[4];
		993	sscanf (SvPV_nolen (data), "%hhu.%hhu.%hhu.%hhu", ip + 0, ip + 1, ip + 2, ip + 3);
		994	encode_data ((const char *)ip, sizeof (ip));
		995	}
		996	break;
		997
		998	case BER_TYPE_UCS2:
		999	encode_ucs (data, 2);
		1000	break;
		1001
		1002	case BER_TYPE_UCS4:
		1003	encode_ucs (data, 4);
		1004	break;
		1005
		1006	case BER_TYPE_REAL:
		1007	croak ("BER_TYPE_REAL not implemented");
		1008
		1009	case BER_TYPE_CROAK:
		1010	croak ("class/tag %d/%d mapped to BER_TYPE_CROAK", klass, tag);
		1011
742	default:	1012	default:
743	encode_octet_string (data);	1013	croak ("unconfigured/unsupported class/tag %d/%d", klass, tag);
744	break;
745	}	1014	}
746		1015
747	}	1016	}
748		1017
749	/////////////////////////////////////////////////////////////////////////////	1018	/////////////////////////////////////////////////////////////////////////////
…		…
753	PROTOTYPES: ENABLE	1022	PROTOTYPES: ENABLE
754		1023
755	BOOT:	1024	BOOT:
756	{	1025	{
757	HV *stash = gv_stashpv ("Convert::BER::XS", 1);	1026	HV *stash = gv_stashpv ("Convert::BER::XS", 1);
		1027
		1028	profile_stash = gv_stashpv ("Convert::BER::XS::Profile", 1);
758		1029
759	static const struct {	1030	static const struct {
760	const char *name;	1031	const char *name;
761	IV iv;	1032	IV iv;
762	} *civ, const_iv[] = {	1033	} *civ, const_iv[] = {
763	{ "ASN_BOOLEAN", ASN_BOOLEAN },	1034	#define const_iv(name) { # name, name },
764	{ "ASN_INTEGER32", ASN_INTEGER32 },	1035	const_iv (ASN_BOOLEAN)
765	{ "ASN_BIT_STRING", ASN_BIT_STRING },	1036	const_iv (ASN_INTEGER)
766	{ "ASN_OCTET_STRING", ASN_OCTET_STRING },	1037	const_iv (ASN_BIT_STRING)
767	{ "ASN_NULL", ASN_NULL },	1038	const_iv (ASN_OCTET_STRING)
768	{ "ASN_OBJECT_IDENTIFIER", ASN_OBJECT_IDENTIFIER },	1039	const_iv (ASN_NULL)
769	{ "ASN_TAG_BER", ASN_TAG_BER },	1040	const_iv (ASN_OBJECT_IDENTIFIER)
770	{ "ASN_TAG_MASK", ASN_TAG_MASK },	1041	const_iv (ASN_OBJECT_DESCRIPTOR)
771	{ "ASN_CONSTRUCTED", ASN_CONSTRUCTED },	1042	const_iv (ASN_OID)
772	{ "ASN_UNIVERSAL", ASN_UNIVERSAL >> ASN_CLASS_SHIFT },	1043	const_iv (ASN_EXTERNAL)
773	{ "ASN_APPLICATION", ASN_APPLICATION >> ASN_CLASS_SHIFT },	1044	const_iv (ASN_REAL)
774	{ "ASN_CONTEXT", ASN_CONTEXT >> ASN_CLASS_SHIFT },	1045	const_iv (ASN_SEQUENCE)
775	{ "ASN_PRIVATE", ASN_PRIVATE >> ASN_CLASS_SHIFT },	1046	const_iv (ASN_ENUMERATED)
776	{ "ASN_CLASS_MASK", ASN_CLASS_MASK },	1047	const_iv (ASN_EMBEDDED_PDV)
777	{ "ASN_CLASS_SHIFT", ASN_CLASS_SHIFT },	1048	const_iv (ASN_UTF8_STRING)
778	{ "ASN_SEQUENCE", ASN_SEQUENCE },	1049	const_iv (ASN_RELATIVE_OID)
779	{ "SNMP_IPADDRESS", SNMP_IPADDRESS },	1050	const_iv (ASN_SET)
780	{ "SNMP_COUNTER32", SNMP_COUNTER32 },	1051	const_iv (ASN_NUMERIC_STRING)
781	{ "SNMP_UNSIGNED32", SNMP_UNSIGNED32 },	1052	const_iv (ASN_PRINTABLE_STRING)
782	{ "SNMP_TIMETICKS", SNMP_TIMETICKS },	1053	const_iv (ASN_TELETEX_STRING)
783	{ "SNMP_OPAQUE", SNMP_OPAQUE },	1054	const_iv (ASN_T61_STRING)
784	{ "SNMP_COUNTER64", SNMP_COUNTER64 },	1055	const_iv (ASN_VIDEOTEX_STRING)
		1056	const_iv (ASN_IA5_STRING)
		1057	const_iv (ASN_ASCII_STRING)
		1058	const_iv (ASN_UTC_TIME)
		1059	const_iv (ASN_GENERALIZED_TIME)
		1060	const_iv (ASN_GRAPHIC_STRING)
		1061	const_iv (ASN_VISIBLE_STRING)
		1062	const_iv (ASN_ISO646_STRING)
		1063	const_iv (ASN_GENERAL_STRING)
		1064	const_iv (ASN_UNIVERSAL_STRING)
		1065	const_iv (ASN_CHARACTER_STRING)
		1066	const_iv (ASN_BMP_STRING)
785		1067
786	{ "BER_CLASS" , BER_CLASS },	1068	const_iv (ASN_UNIVERSAL)
787	{ "BER_TAG" , BER_TAG },	1069	const_iv (ASN_APPLICATION)
788	{ "BER_CONSTRUCTED", BER_CONSTRUCTED },	1070	const_iv (ASN_CONTEXT)
789	{ "BER_DATA" , BER_DATA },	1071	const_iv (ASN_PRIVATE)
		1072
		1073	const_iv (BER_CLASS)
		1074	const_iv (BER_TAG)
		1075	const_iv (BER_FLAGS)
		1076	const_iv (BER_DATA)
		1077
		1078	const_iv (BER_TYPE_BYTES)
		1079	const_iv (BER_TYPE_UTF8)
		1080	const_iv (BER_TYPE_UCS2)
		1081	const_iv (BER_TYPE_UCS4)
		1082	const_iv (BER_TYPE_INT)
		1083	const_iv (BER_TYPE_OID)
		1084	const_iv (BER_TYPE_RELOID)
		1085	const_iv (BER_TYPE_NULL)
		1086	const_iv (BER_TYPE_BOOL)
		1087	const_iv (BER_TYPE_REAL)
		1088	const_iv (BER_TYPE_IPADDRESS)
		1089	const_iv (BER_TYPE_CROAK)
		1090
		1091	const_iv (SNMP_IPADDRESS)
		1092	const_iv (SNMP_COUNTER32)
		1093	const_iv (SNMP_GAUGE32)
		1094	const_iv (SNMP_UNSIGNED32)
		1095	const_iv (SNMP_TIMETICKS)
		1096	const_iv (SNMP_OPAQUE)
		1097	const_iv (SNMP_COUNTER64)
790	};	1098	};
791		1099
792	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)	1100	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));	1101	newCONSTSUB (stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
794	}	1102	}
795		1103
796	SV *	1104	void
797	ber_decode (SV *ber)	1105	ber_decode (SV ber, SV profile = &PL_sv_undef)
		1106	ALIAS:
		1107	ber_decode_prefix = 1
798	CODE:	1108	PPCODE:
799	{	1109	{
		1110	cur_profile = SvPROFILE (profile);
800	STRLEN len;	1111	STRLEN len;
801
802	buf = SvPVbyte (ber, len);	1112	buf = (U8 *)SvPVbyte (ber, len);
803	cur = buf;	1113	cur = buf;
804	end = buf + len;	1114	end = buf + len;
805		1115
806	RETVAL = decode_ber ();	1116	SV *tuple = decode_ber ();
		1117
		1118	EXTEND (SP, 2);
		1119	PUSHs (sv_2mortal (tuple));
		1120
		1121	if (ix)
		1122	PUSHs (sv_2mortal (newSViv (cur - buf)));
		1123	else if (cur != end)
		1124	error ("trailing garbage after BER value");
807	}	1125	}
808	OUTPUT: RETVAL
809		1126
810	void	1127	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)	1128	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:	1129	PPCODE:
813	{	1130	{
814	if (!SvOK (tuple))	1131	if (!SvOK (tuple))
815	XSRETURN_NO;	1132	XSRETURN_NO;
816		1133
…		…
818	croak ("ber_is: tuple must be BER tuple (array-ref)");	1135	croak ("ber_is: tuple must be BER tuple (array-ref)");
819		1136
820	AV av = (AV )SvRV (tuple);	1137	AV av = (AV )SvRV (tuple);
821		1138
822	XPUSHs (	1139	XPUSHs (
823	(!SvOK (klass) \|\| SvIV (AvARRAY (av)[BER_CLASS ]) == SvIV (klass))	1140	(!SvOK (klass) \|\| SvIV (AvARRAY (av)[BER_CLASS]) == SvIV (klass))
824	&& (!SvOK (tag) \|\| SvIV (AvARRAY (av)[BER_TAG ]) == SvIV (tag))	1141	&& (!SvOK (tag) \|\| SvIV (AvARRAY (av)[BER_TAG ]) == SvIV (tag))
825	&& (!SvOK (constructed) \|\| !SvIV (AvARRAY (av)[BER_CONSTRUCTED]) == !SvIV (constructed))	1142	&& (!SvOK (flags) \|\| !SvIV (AvARRAY (av)[BER_FLAGS]) == !SvIV (flags))
826	&& (!SvOK (data) \|\| sv_eq (AvARRAY (av)[BER_DATA ], data))	1143	&& (!SvOK (data) \|\| sv_eq (AvARRAY (av)[BER_DATA ], data))
827	? &PL_sv_yes : &PL_sv_undef);	1144	? &PL_sv_yes : &PL_sv_undef);
828	}	1145	}
829		1146
830	void	1147	void
831	ber_is_seq (SV *tuple)	1148	ber_is_seq (SV *tuple)
…		…
835	XSRETURN_UNDEF;	1152	XSRETURN_UNDEF;
836		1153
837	AV *av = ber_tuple (tuple);	1154	AV *av = ber_tuple (tuple);
838		1155
839	XPUSHs (	1156	XPUSHs (
840	SvIV (AvARRAY (av)[BER_CLASS ]) == ASN_UNIVERSAL	1157	SvIV (AvARRAY (av)[BER_CLASS]) == ASN_UNIVERSAL
841	&& SvIV (AvARRAY (av)[BER_TAG ]) == ASN_SEQUENCE	1158	&& SvIV (AvARRAY (av)[BER_TAG ]) == ASN_SEQUENCE
842	&& SvIV (AvARRAY (av)[BER_CONSTRUCTED])	1159	&& SvIV (AvARRAY (av)[BER_FLAGS])
843	? AvARRAY (av)[BER_DATA] : &PL_sv_undef);	1160	? AvARRAY (av)[BER_DATA] : &PL_sv_undef);
844	}	1161	}
845		1162
846	void	1163	void
847	ber_is_i32 (SV tuple, SV value = &PL_sv_undef)	1164	ber_is_int (SV tuple, SV value = &PL_sv_undef)
848	PPCODE:	1165	PPCODE:
849	{	1166	{
850	if (!SvOK (tuple))	1167	if (!SvOK (tuple))
851	XSRETURN_NO;	1168	XSRETURN_NO;
852		1169
853	AV *av = ber_tuple (tuple);	1170	AV *av = ber_tuple (tuple);
854		1171
855	IV data = SvIV (AvARRAY (av)[BER_DATA]);	1172	UV data = SvUV (AvARRAY (av)[BER_DATA]);
856		1173
857	XPUSHs (	1174	XPUSHs (
858	SvIV (AvARRAY (av)[BER_CLASS ]) == ASN_UNIVERSAL	1175	SvIV (AvARRAY (av)[BER_CLASS]) == ASN_UNIVERSAL
859	&& SvIV (AvARRAY (av)[BER_TAG ]) == ASN_INTEGER32	1176	&& SvIV (AvARRAY (av)[BER_TAG ]) == ASN_INTEGER
860	&& !SvIV (AvARRAY (av)[BER_CONSTRUCTED])	1177	&& !SvIV (AvARRAY (av)[BER_FLAGS])
861	&& (!SvOK (value) \|\| data == SvIV (value))	1178	&& (!SvOK (value) \|\| data == SvUV (value))
862	? sv_2mortal (data ? newSViv (data) : newSVpv ("0 but true", 0))	1179	? sv_2mortal (data ? newSVsv (AvARRAY (av)[BER_DATA]) : newSVpv ("0 but true", 0))
863	: &PL_sv_undef);	1180	: &PL_sv_undef);
864	}	1181	}
865		1182
866	void	1183	void
867	ber_is_oid (SV tuple, SV oid = &PL_sv_undef)	1184	ber_is_oid (SV tuple, SV oid = &PL_sv_undef)
…		…
871	XSRETURN_NO;	1188	XSRETURN_NO;
872		1189
873	AV *av = ber_tuple (tuple);	1190	AV *av = ber_tuple (tuple);
874		1191
875	XPUSHs (	1192	XPUSHs (
876	SvIV (AvARRAY (av)[BER_CLASS ]) == ASN_UNIVERSAL	1193	SvIV (AvARRAY (av)[BER_CLASS]) == ASN_UNIVERSAL
877	&& SvIV (AvARRAY (av)[BER_TAG ]) == ASN_OBJECT_IDENTIFIER	1194	&& SvIV (AvARRAY (av)[BER_TAG ]) == ASN_OBJECT_IDENTIFIER
878	&& !SvIV (AvARRAY (av)[BER_CONSTRUCTED])	1195	&& !SvIV (AvARRAY (av)[BER_FLAGS])
879	&& (!SvOK (oid) \|\| sv_eq (AvARRAY (av)[BER_DATA], oid))	1196	&& (!SvOK (oid) \|\| sv_eq (AvARRAY (av)[BER_DATA], oid))
880	? newSVsv (AvARRAY (av)[BER_DATA]) : &PL_sv_undef);	1197	? newSVsv (AvARRAY (av)[BER_DATA]) : &PL_sv_undef);
881	}	1198	}
882		1199
883	#############################################################################	1200	#############################################################################
884		1201
885	void	1202	void
886	ber_encode (SV *tuple)	1203	ber_encode (SV tuple, SV profile = &PL_sv_undef)
887	PPCODE:	1204	PPCODE:
888	{	1205	{
		1206	cur_profile = SvPROFILE (profile);
889	buf_sv = sv_2mortal (NEWSV (0, 256));	1207	buf_sv = sv_2mortal (NEWSV (0, 256));
890	SvPOK_only (buf_sv);	1208	SvPOK_only (buf_sv);
891	set_buf (buf_sv);	1209	set_buf (buf_sv);
892		1210
893	encode_ber (tuple);	1211	encode_ber (tuple);
…		…
895	SvCUR_set (buf_sv, cur - buf);	1213	SvCUR_set (buf_sv, cur - buf);
896	XPUSHs (buf_sv);	1214	XPUSHs (buf_sv);
897	}	1215	}
898		1216
899	SV *	1217	SV *
900	ber_i32 (IV iv)	1218	ber_int (SV *sv)
901	CODE:	1219	CODE:
902	{	1220	{
903	AV *av = newAV ();	1221	AV *av = newAV ();
904	av_fill (av, BER_ARRAYSIZE - 1);	1222	av_fill (av, BER_ARRAYSIZE - 1);
905	AvARRAY (av)[BER_CLASS ] = newSVcacheint (ASN_UNIVERSAL);	1223	AvARRAY (av)[BER_CLASS] = newSVcacheint (ASN_UNIVERSAL);
906	AvARRAY (av)[BER_TAG ] = newSVcacheint (ASN_INTEGER32);	1224	AvARRAY (av)[BER_TAG ] = newSVcacheint (ASN_INTEGER);
907	AvARRAY (av)[BER_CONSTRUCTED] = newSVcacheint (0);	1225	AvARRAY (av)[BER_FLAGS] = newSVcacheint (0);
908	AvARRAY (av)[BER_DATA ] = newSViv (iv);	1226	AvARRAY (av)[BER_DATA ] = newSVsv (sv);
909	RETVAL = newRV_noinc ((SV *)av);	1227	RETVAL = newRV_noinc ((SV *)av);
910	}	1228	}
911	OUTPUT: RETVAL	1229	OUTPUT: RETVAL
912		1230
913	# TODO: not arrayref, but elements?	1231	# TODO: not arrayref, but elements?
…		…
915	ber_seq (SV *arrayref)	1233	ber_seq (SV *arrayref)
916	CODE:	1234	CODE:
917	{	1235	{
918	AV *av = newAV ();	1236	AV *av = newAV ();
919	av_fill (av, BER_ARRAYSIZE - 1);	1237	av_fill (av, BER_ARRAYSIZE - 1);
920	AvARRAY (av)[BER_CLASS ] = newSVcacheint (ASN_UNIVERSAL);	1238	AvARRAY (av)[BER_CLASS] = newSVcacheint (ASN_UNIVERSAL);
921	AvARRAY (av)[BER_TAG ] = newSVcacheint (ASN_SEQUENCE);	1239	AvARRAY (av)[BER_TAG ] = newSVcacheint (ASN_SEQUENCE);
922	AvARRAY (av)[BER_CONSTRUCTED] = newSVcacheint (1);	1240	AvARRAY (av)[BER_FLAGS] = newSVcacheint (1);
923	AvARRAY (av)[BER_DATA ] = newSVsv (arrayref);	1241	AvARRAY (av)[BER_DATA ] = newSVsv (arrayref);
924	RETVAL = newRV_noinc ((SV *)av);	1242	RETVAL = newRV_noinc ((SV *)av);
925	}	1243	}
926	OUTPUT: RETVAL	1244	OUTPUT: RETVAL
927		1245
		1246	MODULE = Convert::BER::XS PACKAGE = Convert::BER::XS::Profile
		1247
		1248	SV *
		1249	new (SV *klass)
		1250	CODE:
		1251	RETVAL = profile_new ();
		1252	OUTPUT: RETVAL
		1253
		1254	void
		1255	set (SV *profile, int klass, int tag, int type)
		1256	CODE:
		1257	profile_set (SvPROFILE (profile), klass, tag, type);
		1258
		1259	IV
		1260	get (SV *profile, int klass, int tag)
		1261	CODE:
		1262	RETVAL = profile_lookup (SvPROFILE (profile), klass, tag);
		1263	OUTPUT: RETVAL
		1264
		1265	void
		1266	_set_default (SV *profile)
		1267	CODE:
		1268	default_profile = SvPROFILE (profile);
		1269
		1270

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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 1.32 by root, Tue Apr 23 21:20:25 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 1.32 by root, Tue Apr 23 21:20:25 2019 UTC