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

Comparing Convert-BER-XS/XS.xs (file contents):
Revision 1.3 by root, Fri Apr 19 19:46:29 2019 UTC vs.
Revision 1.30 by root, Tue Apr 23 20:03:08 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 ("indefinite BER value lengths not supported");
		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	UV len = get_length ();
364	U32 seqend = (cur - buf) + len;	476	UV seqend = (cur - buf) + len;
365	AV av = (AV )sv_2mortal ((SV *)newAV ());	477	AV av = (AV )sv_2mortal ((SV *)newAV ());
366		478
367	while (cur < buf + seqend)	479	while (cur < buf + seqend)
368	av_push (av, decode_ber ());	480	av_push (av, decode_ber ());
369		481
370	if (cur > buf + seqend)	482	if (expect_false (cur > buf + seqend))
371	croak ("constructed type %02x overflow (%x %x)\n", identifier, cur - buf, seqend);	483	croak ("CONSTRUCTED type %02x length overflow (0x%x 0x%x)\n", identifier, (int)(cur - buf), (int)seqend);
372		484
373	res = newRV_inc ((SV *)av);	485	res = newRV_inc ((SV *)av);
374	}	486	}
375	else	487	else
376	switch (identifier)	488	{
		489	UV len = get_length ();
		490
		491	switch (profile_lookup (cur_profile, klass, tag))
377	{	492	{
378	case ASN_NULL:	493	case BER_TYPE_NULL:
		494	if (expect_false (len))
		495	croak ("BER_TYPE_NULL value with non-zero length %d encountered (X.690 8.8.2)", len);
		496
379	res = &PL_sv_undef;	497	res = &PL_sv_undef;
380	break;	498	break;
381		499
382	case ASN_OBJECT_IDENTIFIER:	500	case BER_TYPE_BOOL:
383	res = decode_object_identifier ();	501	if (expect_false (len != 1))
		502	croak ("BER_TYPE_BOOLEAN value with invalid length %d encountered (X.690 8.2.1)", len);
		503
		504	res = newSVcacheint (!!get_u8 ());
384	break;	505	break;
385		506
386	case ASN_INTEGER32:	507	case BER_TYPE_OID:
387	res = decode_integer32 ();	508	res = decode_oid (len, 0);
388	break;	509	break;
389		510
390	case ASN_APPLICATION \| SNMP_UNSIGNED32:	511	case BER_TYPE_RELOID:
391	case ASN_APPLICATION \| SNMP_COUNTER32:	512	res = decode_oid (len, 1);
392	case ASN_APPLICATION \| SNMP_TIMETICKS:
393	res = decode_unsigned32 ();
394	break;	513	break;
395		514
396	#if 0 // handled by default case	515	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 ();	516	res = decode_int (len);
401	break;	517	break;
402	#endif
403		518
404	case ASN_APPLICATION \| SNMP_COUNTER64:	519	case BER_TYPE_UTF8:
405	res = decode_integer64 ();	520	res = decode_data (len);
		521	SvUTF8_on (res);
406	break;	522	break;
407		523
408	default:	524	case BER_TYPE_BYTES:
409	res = decode_octet_string ();	525	res = decode_data (len);
410	break;	526	break;
		527
		528	case BER_TYPE_IPADDRESS:
		529	{
		530	if (len != 4)
		531	croak ("BER_TYPE_IPADDRESS type with invalid length %d encountered (RFC 2578 7.1.5)", len);
		532
		533	U8 *data = get_n (4);
		534	res = newSVpvf ("%d.%d.%d.%d", data [0], data [1], data [2], data [3]);
		535	}
		536	break;
		537
		538	case BER_TYPE_UCS2:
		539	res = decode_ucs (len, 2);
		540	break;
		541
		542	case BER_TYPE_UCS4:
		543	res = decode_ucs (len, 4);
		544	break;
		545
		546	case BER_TYPE_REAL:
		547	error ("BER_TYPE_REAL not implemented");
		548
		549	case BER_TYPE_CROAK:
		550	croak ("class/tag %d/%d mapped to BER_TYPE_CROAK", klass, tag);
		551
		552	default:
		553	croak ("unconfigured/unsupported class/tag %d/%d", klass, tag);
411	}	554	}
		555	}
412		556
413	AV *av = newAV ();	557	AV *av = newAV ();
414	av_fill (av, BER_ARRAYSIZE - 1);	558	av_fill (av, BER_ARRAYSIZE - 1);
415	AvARRAY (av)[BER_CLASS ] = newSVcacheint (klass >> ASN_CLASS_SHIFT);	559	AvARRAY (av)[BER_CLASS] = newSVcacheint (klass);
416	AvARRAY (av)[BER_TAG ] = newSVcacheint (tag);	560	AvARRAY (av)[BER_TAG ] = newSVcacheint (tag);
417	AvARRAY (av)[BER_CONSTRUCTED] = newSVcacheint (constructed ? 1 : 0);	561	AvARRAY (av)[BER_FLAGS] = newSVcacheint (constructed ? 1 : 0);
418	AvARRAY (av)[BER_DATA ] = res;	562	AvARRAY (av)[BER_DATA ] = res;
419		563
420	return newRV_noinc ((SV *)av);	564	return newRV_noinc ((SV *)av);
421	}	565	}
422		566
423	/////////////////////////////////////////////////////////////////////////////	567	/////////////////////////////////////////////////////////////////////////////
…		…
428	strlen_sum (STRLEN l1, STRLEN l2)	572	strlen_sum (STRLEN l1, STRLEN l2)
429	{	573	{
430	size_t sum = l1 + l2;	574	size_t sum = l1 + l2;
431		575
432	if (sum < (size_t)l2 \|\| sum != (size_t)(STRLEN)sum)	576	if (sum < (size_t)l2 \|\| sum != (size_t)(STRLEN)sum)
433	croak ("JSON::XS: string size overflow");	577	croak ("Convert::BER::XS: string size overflow");
434		578
435	return sum;	579	return sum;
436	}	580	}
437		581
438	static void	582	static void
439	set_buf (SV *sv)	583	set_buf (SV *sv)
440	{	584	{
441	STRLEN len;	585	STRLEN len;
442	buf_sv = sv;	586	buf_sv = sv;
443	buf = SvPVbyte (buf_sv, len);	587	buf = (U8 *)SvPVbyte (buf_sv, len);
444	cur = buf;	588	cur = buf;
445	end = buf + len;	589	end = buf + len;
446	}	590	}
447		591
448	/* similar to SvGROW, but somewhat safer and guarantees exponential realloc strategy */	592	/* similar to SvGROW, but somewhat safer and guarantees exponential realloc strategy */
…		…
462	need (STRLEN len)	606	need (STRLEN len)
463	{	607	{
464	if (expect_false ((uintptr_t)(end - cur) < len))	608	if (expect_false ((uintptr_t)(end - cur) < len))
465	{	609	{
466	STRLEN pos = cur - buf;	610	STRLEN pos = cur - buf;
467	buf = my_sv_grow (buf_sv, pos, len);	611	buf = (U8 *)my_sv_grow (buf_sv, pos, len);
468	cur = buf + pos;	612	cur = buf + pos;
469	end = buf + SvLEN (buf_sv) - 1;	613	end = buf + SvLEN (buf_sv) - 1;
470	}	614	}
471	}	615	}
472		616
…		…
476	need (1);	620	need (1);
477	*cur++ = val;	621	*cur++ = val;
478	}	622	}
479		623
480	static void	624	static void
481	put_w_nocheck (U32 val)	625	put_w_nocheck (UV val)
482	{	626	{
		627	#if UVSIZE > 4
		628	cur = (val >> 7 9) \| 0x80; cur += val >= ((UV)1 << (7 * 9));
		629	cur = (val >> 7 8) \| 0x80; cur += val >= ((UV)1 << (7 * 8));
		630	cur = (val >> 7 7) \| 0x80; cur += val >= ((UV)1 << (7 * 7));
		631	cur = (val >> 7 6) \| 0x80; cur += val >= ((UV)1 << (7 * 6));
		632	cur = (val >> 7 5) \| 0x80; cur += val >= ((UV)1 << (7 * 5));
		633	#endif
483	cur = (val >> 7 4) \| 0x80; cur += val >= (1 << (7 * 4));	634	cur = (val >> 7 4) \| 0x80; cur += val >= ((UV)1 << (7 * 4));
484	cur = (val >> 7 3) \| 0x80; cur += val >= (1 << (7 * 3));	635	cur = (val >> 7 3) \| 0x80; cur += val >= ((UV)1 << (7 * 3));
485	cur = (val >> 7 2) \| 0x80; cur += val >= (1 << (7 * 2));	636	cur = (val >> 7 2) \| 0x80; cur += val >= ((UV)1 << (7 * 2));
486	cur = (val >> 7 1) \| 0x80; cur += val >= (1 << (7 * 1));	637	cur = (val >> 7 1) \| 0x80; cur += val >= ((UV)1 << (7 * 1));
487	*cur = val & 0x7f; cur += 1;	638	*cur = val & 0x7f; cur += 1;
488	}	639	}
489		640
490	static void	641	static void
491	put_w (U32 val)	642	put_w (UV val)
492	{	643	{
493	need (5); // we only handle up to 5 bytes	644	need (5); // we only handle up to 5 bytes
494		645
495	put_w_nocheck (val);	646	put_w_nocheck (val);
496	}	647	}
497		648
498	static U8 *	649	static U8 *
499	put_length_at (U32 val, U8 *cur)	650	put_length_at (UV val, U8 *cur)
500	{	651	{
501	if (val < 0x7fU)	652	if (val <= 0x7fU)
502	*cur++ = val;	653	*cur++ = val;
503	else	654	else
504	{	655	{
505	U8 *lenb = cur++;	656	U8 *lenb = cur++;
506		657
507	cur = val >> 24; cur += cur > 0;	658	#if UVSIZE > 4
508	cur = val >> 16; cur += cur > 0;	659	cur = val >> 56; cur += val >= ((UV)1 << (8 7));
509	cur = val >> 8; cur += cur > 0;	660	cur = val >> 48; cur += val >= ((UV)1 << (8 6));
		661	cur = val >> 40; cur += val >= ((UV)1 << (8 5));
		662	cur = val >> 32; cur += val >= ((UV)1 << (8 4));
		663	#endif
		664	cur = val >> 24; cur += val >= ((UV)1 << (8 3));
		665	cur = val >> 16; cur += val >= ((UV)1 << (8 2));
		666	cur = val >> 8; cur += val >= ((UV)1 << (8 1));
510	*cur = val ; cur += 1;	667	*cur = val ; cur += 1;
511		668
512	*lenb = 0x80 + cur - lenb - 1;	669	*lenb = 0x80 + cur - lenb - 1;
513	}	670	}
514		671
515	return cur;	672	return cur;
516	}	673	}
517		674
518	static void	675	static void
519	put_length (U32 val)	676	put_length (UV val)
520	{	677	{
521	need (5);	678	need (9 + val);
522	cur = put_length_at (val, cur);	679	cur = put_length_at (val, cur);
523	}	680	}
524		681
525	// return how many bytes the encoded length requires	682	// return how many bytes the encoded length requires
526	static int length_length (U32 val)	683	static int length_length (UV val)
527	{	684	{
528	return val < 0x7fU	685	// use hashing with a DeBruin sequence, anyone?
		686	return expect_true (val <= 0x7fU)
529	? 1	687	? 1
530	: 2 + (val > 0xffU) + (val > 0xffffU) + (val > 0xffffffU);	688	: 2
		689	+ (val > 0x000000000000ffU)
		690	+ (val > 0x0000000000ffffU)
		691	+ (val > 0x00000000ffffffU)
		692	#if UVSIZE > 4
		693	+ (val > 0x000000ffffffffU)
		694	+ (val > 0x0000ffffffffffU)
		695	+ (val > 0x00ffffffffffffU)
		696	+ (val > 0xffffffffffffffU)
		697	#endif
		698	;
531	}	699	}
532		700
533	static void	701	static void
534	encode_octet_string (SV *sv)	702	encode_data (const char *ptr, STRLEN len)
535	{	703	{
536	STRLEN len;
537	char *ptr = SvPVbyte (sv, len);
538
539	put_length (len);	704	put_length (len);
540	need (len);
541	memcpy (cur, ptr, len);	705	memcpy (cur, ptr, len);
542	cur += len;	706	cur += len;
543	}	707	}
544		708
545	static void	709	static void
546	encode_integer32 (IV iv)	710	encode_uv (UV uv)
547	{	711	{
548	need (5);	712	}
		713
		714	static void
		715	encode_int (SV *sv)
		716	{
		717	need (8 + 1 + 1); // 64 bit + length + extra 0
		718
		719	if (expect_false (!SvIOK (sv)))
		720	sv_2iv_flags (sv, 0);
549		721
550	U8 *lenb = cur++;	722	U8 *lenb = cur++;
551		723
552	if (iv < 0)	724	if (SvIOK_notUV (sv))
553	{	725	{
		726	IV iv = SvIVX (sv);
		727
		728	if (expect_false (iv < 0))
		729	{
554	// get two's complement bit pattern - works even on hypthetical non-2c machines	730	// get two's complement bit pattern - works even on hypothetical non-2c machines
555	U32 uv = iv;	731	UV uv = iv;
556		732
		733	#if UVSIZE > 4
		734	*cur = uv >> 56; cur += !!(~uv & 0xff80000000000000U);
		735	*cur = uv >> 48; cur += !!(~uv & 0xffff800000000000U);
		736	*cur = uv >> 40; cur += !!(~uv & 0xffffff8000000000U);
		737	*cur = uv >> 32; cur += !!(~uv & 0xffffffff80000000U);
		738	#endif
557	*cur = uv >> 24; cur += !!(~uv & 0xff800000U);	739	*cur = uv >> 24; cur += !!(~uv & 0xffffffffff800000U);
558	*cur = uv >> 16; cur += !!(~uv & 0xffff8000U);	740	*cur = uv >> 16; cur += !!(~uv & 0xffffffffffff8000U);
559	*cur = uv >> 8; cur += !!(~uv & 0xffffff80U);	741	*cur = uv >> 8; cur += !!(~uv & 0xffffffffffffff80U);
560	*cur = uv ; cur += 1;	742	*cur = uv ; cur += 1;
561	}	743
562	else	744	*lenb = cur - lenb - 1;
		745
		746	return;
		747	}
563	{	748	}
564	cur = iv >> 24; cur += cur > 0;	749
565	cur = iv >> 16; cur += cur > 0;	750	UV uv = SvUV (sv);
566	cur = iv >> 8; cur += cur > 0;	751
		752	// prepend an extra 0 if the high bit is 1
		753	cur = 0; cur += !!(uv & ((UV)1 << (UVSIZE 8 - 1)));
		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
		761	*cur = uv >> 24; cur += !!(uv & 0xffffffffff800000U);
		762	*cur = uv >> 16; cur += !!(uv & 0xffffffffffff8000U);
		763	*cur = uv >> 8; cur += !!(uv & 0xffffffffffffff80U);
567	*cur = iv ; cur += 1;	764	*cur = uv ; cur += 1;
568	}
569		765
570	*lenb = cur - lenb - 1;	766	*lenb = cur - lenb - 1;
571	}	767	}
572		768
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	769	// we don't know the length yet, so we optimistically
593	// assume the length will need one octet later. if that	770	// assume the length will need one octet later. If that
594	// turns out to be wrong, we memove as needed.	771	// turns out to be wrong, we memmove as needed.
595	// mark the beginning	772	// mark the beginning
596	static STRLEN	773	static STRLEN
597	len_fixup_mark ()	774	len_fixup_mark (void)
598	{	775	{
599	return cur++ - buf;	776	return cur++ - buf;
600	}	777	}
601		778
602	// patch up the length	779	// patch up the length
…		…
631		808
632	return str;	809	return str;
633	}	810	}
634		811
635	static void	812	static void
636	encode_object_identifier (SV *oid)	813	encode_oid (SV *oid, int relative)
637	{	814	{
638	STRLEN slen;	815	STRLEN len;
639	char *ptr = SvPV (oid, slen); // utf8 vs. bytes does not matter	816	char *ptr = SvPV (oid, len); // utf8 vs. bytes does not matter
640		817
641	// we need at most as many octets as the string form	818	// we need at most as many octets as the string form
642	need (slen + 1);	819	need (len + 1);
643	STRLEN mark = len_fixup_mark ();	820	STRLEN mark = len_fixup_mark ();
644		821
645	UV w1, w2;	822	UV w1, w2;
646		823
		824	if (!relative)
		825	{
647	ptr = read_uv (ptr, &w1);	826	ptr = read_uv (ptr, &w1);
648	ptr = read_uv (ptr, &w2);	827	ptr = read_uv (ptr, &w2);
649		828
650	put_w_nocheck (w1 * 40 + w2);	829	put_w_nocheck (w1 * 40 + w2);
		830	}
651		831
652	while (*ptr)	832	while (*ptr)
653	{	833	{
654	ptr = read_uv (ptr, &w1);	834	ptr = read_uv (ptr, &w1);
655	put_w_nocheck (w1);	835	put_w_nocheck (w1);
656	}	836	}
657		837
658	len_fixup (mark);	838	len_fixup (mark);
659	}	839	}
660		840
		841	// check whether an SV is a BER tuple and returns its AV *
		842	static AV *
		843	ber_tuple (SV *tuple)
		844	{
		845	SV *rv;
		846
		847	if (expect_false (!SvROK (tuple) \|\| SvTYPE ((rv = SvRV (tuple))) != SVt_PVAV))
		848	croak ("BER tuple must be array-reference");
		849
		850	if (expect_false (SvRMAGICAL (rv)))
		851	croak ("BER tuple must not be tied");
		852
		853	if (expect_false (AvFILL ((AV *)rv) != BER_ARRAYSIZE - 1))
		854	croak ("BER tuple must contain exactly %d elements, not %d", BER_ARRAYSIZE, AvFILL ((AV *)rv) + 1);
		855
		856	return (AV *)rv;
		857	}
		858
		859	static void
		860	encode_ucs (SV *data, int chrsize)
		861	{
		862	STRLEN uchars = sv_len_utf8 (data);
		863	STRLEN len;;
		864	char *ptr = SvPVutf8 (data, len);
		865
		866	put_length (uchars * chrsize);
		867
		868	while (uchars--)
		869	{
		870	STRLEN uclen;
		871	UV uchr = utf8_to_uvchr_buf ((U8 )ptr, (U8 )ptr + len, &uclen);
		872
		873	ptr += uclen;
		874	len -= uclen;
		875
		876	if (chrsize == 4)
		877	{
		878	*cur++ = uchr >> 24;
		879	*cur++ = uchr >> 16;
		880	}
		881
		882	*cur++ = uchr >> 8;
		883	*cur++ = uchr;
		884	}
		885	}
661	static void	886	static void
662	encode_ber (SV *tuple)	887	encode_ber (SV *tuple)
663	{	888	{
664	if (expect_false (!SvROK (tuple) \|\| SvTYPE (SvRV (tuple)) != SVt_PVAV))	889	AV *av = ber_tuple (tuple);
665	croak ("BER tuple must be array-reference");
666
667	AV av = (AV )SvRV (tuple);
668
669	if (expect_false (SvRMAGICAL (av)))
670	croak ("BER tuple must not be tied");
671
672	if (expect_false (AvFILL (av) != BER_ARRAYSIZE - 1))
673	croak ("BER tuple must contain exactly %d elements, not %d", BER_ARRAYSIZE, AvFILL (av) + 1);
674		890
675	int klass = SvIV (AvARRAY (av)[BER_CLASS]);	891	int klass = SvIV (AvARRAY (av)[BER_CLASS]);
676	int tag = SvIV (AvARRAY (av)[BER_TAG]);	892	int tag = SvIV (AvARRAY (av)[BER_TAG]);
677	int constructed = SvIV (AvARRAY (av)[BER_CONSTRUCTED]) ? ASN_CONSTRUCTED : 0;	893	int constructed = SvIV (AvARRAY (av)[BER_FLAGS]) & 1 ? ASN_CONSTRUCTED : 0;
678	SV *data = AvARRAY (av)[BER_DATA];	894	SV *data = AvARRAY (av)[BER_DATA];
679		895
680	int identifier = (klass << ASN_CLASS_SHIFT) \| constructed;	896	int identifier = (klass << ASN_CLASS_SHIFT) \| constructed;
681		897
682	if (expect_false (tag >= ASN_TAG_BER))	898	if (expect_false (tag >= ASN_TAG_BER))
…		…
693	// and adjust later	909	// and adjust later
694	need (1);	910	need (1);
695	STRLEN mark = len_fixup_mark ();	911	STRLEN mark = len_fixup_mark ();
696		912
697	if (expect_false (!SvROK (data) \|\| SvTYPE (SvRV (data)) != SVt_PVAV))	913	if (expect_false (!SvROK (data) \|\| SvTYPE (SvRV (data)) != SVt_PVAV))
698	croak ("BER constructed data must be array-reference");	914	croak ("BER CONSTRUCTED data must be array-reference");
699		915
700	AV av = (AV )SvRV (data);	916	AV av = (AV )SvRV (data);
701	int fill = AvFILL (av);	917	int fill = AvFILL (av);
702		918
703	if (expect_false (SvRMAGICAL (av)))	919	if (expect_false (SvRMAGICAL (av)))
704	croak ("BER constructed data must not be tied");	920	croak ("BER CONSTRUCTED data must not be tied");
705		921
		922	int i;
706	for (int i = 0; i <= fill; ++i)	923	for (i = 0; i <= fill; ++i)
707	encode_ber (AvARRAY (av)[i]);	924	encode_ber (AvARRAY (av)[i]);
708		925
709	len_fixup (mark);	926	len_fixup (mark);
710	}	927	}
711	else	928	else
712	switch (identifier \| tag)	929	switch (profile_lookup (cur_profile, klass, tag))
713	{	930	{
714	case ASN_NULL:	931	case BER_TYPE_NULL:
715	put_length (0);	932	put_length (0);
716	break;	933	break;
717		934
718	case ASN_OBJECT_IDENTIFIER:	935	case BER_TYPE_BOOL:
719	encode_object_identifier (data);	936	put_length (1);
		937	*cur++ = SvTRUE (data) ? 0xff : 0x00; // 0xff = DER/CER
720	break;	938	break;
721		939
722	case ASN_INTEGER32:	940	case BER_TYPE_OID:
723	encode_integer32 (SvIV (data));	941	encode_oid (data, 0);
724	break;	942	break;
725		943
726	case ASN_APPLICATION \| SNMP_UNSIGNED32:	944	case BER_TYPE_RELOID:
727	case ASN_APPLICATION \| SNMP_COUNTER32:	945	encode_oid (data, 1);
728	case ASN_APPLICATION \| SNMP_TIMETICKS:
729	case ASN_APPLICATION \| SNMP_COUNTER64:
730	encode_unsigned64 (SvUV (data));
731	break;	946	break;
732		947
		948	case BER_TYPE_INT:
		949	encode_int (data);
		950	break;
		951
		952	case BER_TYPE_BYTES:
		953	{
		954	STRLEN len;
		955	const char *ptr = SvPVbyte (data, len);
		956	encode_data (ptr, len);
		957	}
		958	break;
		959
		960	case BER_TYPE_UTF8:
		961	{
		962	STRLEN len;
		963	const char *ptr = SvPVutf8 (data, len);
		964	encode_data (ptr, len);
		965	}
		966	break;
		967
		968	case BER_TYPE_IPADDRESS:
		969	{
		970	U8 ip[4];
		971	sscanf (SvPV_nolen (data), "%hhu.%hhu.%hhu.%hhu", ip + 0, ip + 1, ip + 2, ip + 3);
		972	encode_data ((const char *)ip, sizeof (ip));
		973	}
		974	break;
		975
		976	case BER_TYPE_UCS2:
		977	encode_ucs (data, 2);
		978	break;
		979
		980	case BER_TYPE_UCS4:
		981	encode_ucs (data, 4);
		982	break;
		983
		984	case BER_TYPE_REAL:
		985	croak ("BER_TYPE_REAL not implemented");
		986
		987	case BER_TYPE_CROAK:
		988	croak ("class/tag %d/%d mapped to BER_TYPE_CROAK", klass, tag);
		989
733	default:	990	default:
734	encode_octet_string (data);	991	croak ("unconfigured/unsupported class/tag %d/%d", klass, tag);
735	break;
736	}	992	}
737		993
738	}	994	}
739		995
740	/////////////////////////////////////////////////////////////////////////////	996	/////////////////////////////////////////////////////////////////////////////
…		…
744	PROTOTYPES: ENABLE	1000	PROTOTYPES: ENABLE
745		1001
746	BOOT:	1002	BOOT:
747	{	1003	{
748	HV *stash = gv_stashpv ("Convert::BER::XS", 1);	1004	HV *stash = gv_stashpv ("Convert::BER::XS", 1);
		1005
		1006	profile_stash = gv_stashpv ("Convert::BER::XS::Profile", 1);
749		1007
750	static const struct {	1008	static const struct {
751	const char *name;	1009	const char *name;
752	IV iv;	1010	IV iv;
753	} *civ, const_iv[] = {	1011	} *civ, const_iv[] = {
754	{ "ASN_BOOLEAN", ASN_BOOLEAN },	1012	#define const_iv(name) { # name, name },
755	{ "ASN_INTEGER32", ASN_INTEGER32 },	1013	const_iv (ASN_BOOLEAN)
756	{ "ASN_BIT_STRING", ASN_BIT_STRING },	1014	const_iv (ASN_INTEGER)
757	{ "ASN_OCTET_STRING", ASN_OCTET_STRING },	1015	const_iv (ASN_BIT_STRING)
758	{ "ASN_NULL", ASN_NULL },	1016	const_iv (ASN_OCTET_STRING)
759	{ "ASN_OBJECT_IDENTIFIER", ASN_OBJECT_IDENTIFIER },	1017	const_iv (ASN_NULL)
760	{ "ASN_TAG_BER", ASN_TAG_BER },	1018	const_iv (ASN_OBJECT_IDENTIFIER)
761	{ "ASN_TAG_MASK", ASN_TAG_MASK },	1019	const_iv (ASN_OBJECT_DESCRIPTOR)
762	{ "ASN_CONSTRUCTED", ASN_CONSTRUCTED },	1020	const_iv (ASN_OID)
763	{ "ASN_UNIVERSAL", ASN_UNIVERSAL >> ASN_CLASS_SHIFT },	1021	const_iv (ASN_EXTERNAL)
764	{ "ASN_APPLICATION", ASN_APPLICATION >> ASN_CLASS_SHIFT },	1022	const_iv (ASN_REAL)
765	{ "ASN_CONTEXT", ASN_CONTEXT >> ASN_CLASS_SHIFT },	1023	const_iv (ASN_SEQUENCE)
766	{ "ASN_PRIVATE", ASN_PRIVATE >> ASN_CLASS_SHIFT },	1024	const_iv (ASN_ENUMERATED)
767	{ "ASN_CLASS_MASK", ASN_CLASS_MASK },	1025	const_iv (ASN_EMBEDDED_PDV)
768	{ "ASN_CLASS_SHIFT", ASN_CLASS_SHIFT },	1026	const_iv (ASN_UTF8_STRING)
769	{ "ASN_SEQUENCE", ASN_SEQUENCE },	1027	const_iv (ASN_RELATIVE_OID)
770	{ "SNMP_IPADDRESS", SNMP_IPADDRESS },	1028	const_iv (ASN_SET)
771	{ "SNMP_COUNTER32", SNMP_COUNTER32 },	1029	const_iv (ASN_NUMERIC_STRING)
772	{ "SNMP_UNSIGNED32", SNMP_UNSIGNED32 },	1030	const_iv (ASN_PRINTABLE_STRING)
773	{ "SNMP_TIMETICKS", SNMP_TIMETICKS },	1031	const_iv (ASN_TELETEX_STRING)
774	{ "SNMP_OPAQUE", SNMP_OPAQUE },	1032	const_iv (ASN_T61_STRING)
775	{ "SNMP_COUNTER64", SNMP_COUNTER64 },	1033	const_iv (ASN_VIDEOTEX_STRING)
		1034	const_iv (ASN_IA5_STRING)
		1035	const_iv (ASN_ASCII_STRING)
		1036	const_iv (ASN_UTC_TIME)
		1037	const_iv (ASN_GENERALIZED_TIME)
		1038	const_iv (ASN_GRAPHIC_STRING)
		1039	const_iv (ASN_VISIBLE_STRING)
		1040	const_iv (ASN_ISO646_STRING)
		1041	const_iv (ASN_GENERAL_STRING)
		1042	const_iv (ASN_UNIVERSAL_STRING)
		1043	const_iv (ASN_CHARACTER_STRING)
		1044	const_iv (ASN_BMP_STRING)
776		1045
777	{ "BER_CLASS" , BER_CLASS },	1046	const_iv (ASN_UNIVERSAL)
778	{ "BER_TAG" , BER_TAG },	1047	const_iv (ASN_APPLICATION)
779	{ "BER_CONSTRUCTED", BER_CONSTRUCTED },	1048	const_iv (ASN_CONTEXT)
780	{ "BER_DATA" , BER_DATA },	1049	const_iv (ASN_PRIVATE)
		1050
		1051	const_iv (BER_CLASS)
		1052	const_iv (BER_TAG)
		1053	const_iv (BER_FLAGS)
		1054	const_iv (BER_DATA)
		1055
		1056	const_iv (BER_TYPE_BYTES)
		1057	const_iv (BER_TYPE_UTF8)
		1058	const_iv (BER_TYPE_UCS2)
		1059	const_iv (BER_TYPE_UCS4)
		1060	const_iv (BER_TYPE_INT)
		1061	const_iv (BER_TYPE_OID)
		1062	const_iv (BER_TYPE_RELOID)
		1063	const_iv (BER_TYPE_NULL)
		1064	const_iv (BER_TYPE_BOOL)
		1065	const_iv (BER_TYPE_REAL)
		1066	const_iv (BER_TYPE_IPADDRESS)
		1067	const_iv (BER_TYPE_CROAK)
		1068
		1069	const_iv (SNMP_IPADDRESS)
		1070	const_iv (SNMP_COUNTER32)
		1071	const_iv (SNMP_GAUGE32)
		1072	const_iv (SNMP_UNSIGNED32)
		1073	const_iv (SNMP_TIMETICKS)
		1074	const_iv (SNMP_OPAQUE)
		1075	const_iv (SNMP_COUNTER64)
781	};	1076	};
782		1077
783	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)	1078	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
784	newCONSTSUB (stash, (char *)civ[-1].name, newSViv (civ[-1].iv));	1079	newCONSTSUB (stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
785	}	1080	}
786		1081
787	SV *	1082	void
788	ber_decode (SV *ber)	1083	ber_decode (SV ber, SV profile = &PL_sv_undef)
		1084	ALIAS:
		1085	ber_decode_prefix = 1
789	CODE:	1086	PPCODE:
790	{	1087	{
		1088	cur_profile = SvPROFILE (profile);
791	STRLEN len;	1089	STRLEN len;
792
793	buf = SvPVbyte (ber, len);	1090	buf = (U8 *)SvPVbyte (ber, len);
794	cur = buf;	1091	cur = buf;
795	end = buf + len;	1092	end = buf + len;
796		1093
797	RETVAL = decode_ber ();	1094	SV *tuple = decode_ber ();
		1095
		1096	EXTEND (SP, 2);
		1097	PUSHs (sv_2mortal (tuple));
		1098
		1099	if (ix)
		1100	PUSHs (sv_2mortal (newSViv (cur - buf)));
		1101	else if (cur != end)
		1102	error ("trailing garbage after BER value");
798	}	1103	}
799	OUTPUT: RETVAL
800		1104
801	void	1105	void
802	ber_is (SV tuple, SV klass = &PL_sv_undef, SV tag = &PL_sv_undef, SV constructed = &PL_sv_undef, SV *data = &PL_sv_undef)	1106	ber_is (SV tuple, SV klass = &PL_sv_undef, SV tag = &PL_sv_undef, SV flags = &PL_sv_undef, SV *data = &PL_sv_undef)
803	PROTOTYPE: $;$$$
804	PPCODE:	1107	PPCODE:
805	{	1108	{
806	if (!SvOK (tuple))	1109	if (!SvOK (tuple))
807	XSRETURN_NO;	1110	XSRETURN_NO;
808		1111
809	if (!SvROK (tuple) \|\| SvTYPE (SvRV (tuple)) != SVt_PVAV)	1112	if (!SvROK (tuple) \|\| SvTYPE (SvRV (tuple)) != SVt_PVAV)
810	croak ("ber_seq: tuple must be ber tuple (array-ref)");	1113	croak ("ber_is: tuple must be BER tuple (array-ref)");
811		1114
812	AV av = (AV )SvRV (tuple);	1115	AV av = (AV )SvRV (tuple);
813		1116
814	XPUSHs (	1117	XPUSHs (
815	(!SvOK (klass) \|\| SvIV (AvARRAY (av)[BER_CLASS ]) == SvIV (klass))	1118	(!SvOK (klass) \|\| SvIV (AvARRAY (av)[BER_CLASS]) == SvIV (klass))
816	&& (!SvOK (tag) \|\| SvIV (AvARRAY (av)[BER_TAG ]) == SvIV (tag))	1119	&& (!SvOK (tag) \|\| SvIV (AvARRAY (av)[BER_TAG ]) == SvIV (tag))
817	&& (!SvOK (constructed) \|\| !SvIV (AvARRAY (av)[BER_CONSTRUCTED]) == !SvIV (constructed))	1120	&& (!SvOK (flags) \|\| !SvIV (AvARRAY (av)[BER_FLAGS]) == !SvIV (flags))
818	&& (!SvOK (data) \|\| sv_eq (AvARRAY (av)[BER_DATA ], data))	1121	&& (!SvOK (data) \|\| sv_eq (AvARRAY (av)[BER_DATA ], data))
819	? &PL_sv_yes : &PL_sv_no);	1122	? &PL_sv_yes : &PL_sv_undef);
820	}	1123	}
821		1124
822	void	1125	void
823	ber_is_seq (SV *tuple)	1126	ber_is_seq (SV *tuple)
824	PPCODE:	1127	PPCODE:
825	{	1128	{
826	if (!SvOK (tuple))	1129	if (!SvOK (tuple))
827	XSRETURN_UNDEF;	1130	XSRETURN_UNDEF;
828		1131
829	if (!SvROK (tuple) \|\| SvTYPE (SvRV (tuple)) != SVt_PVAV)	1132	AV *av = ber_tuple (tuple);
830	croak ("ber_seq: tuple must be ber tuple (array-ref)");
831
832	AV av = (AV )SvRV (tuple);
833		1133
834	XPUSHs (	1134	XPUSHs (
835	SvIV (AvARRAY (av)[BER_CLASS ]) == ASN_UNIVERSAL	1135	SvIV (AvARRAY (av)[BER_CLASS]) == ASN_UNIVERSAL
836	&& SvIV (AvARRAY (av)[BER_TAG ]) == ASN_SEQUENCE	1136	&& SvIV (AvARRAY (av)[BER_TAG ]) == ASN_SEQUENCE
837	&& SvIV (AvARRAY (av)[BER_CONSTRUCTED])	1137	&& SvIV (AvARRAY (av)[BER_FLAGS])
838	? AvARRAY (av)[BER_DATA] : &PL_sv_undef);	1138	? AvARRAY (av)[BER_DATA] : &PL_sv_undef);
839	}	1139	}
840		1140
841	void	1141	void
842	ber_is_i32 (SV *tuple, IV value)	1142	ber_is_int (SV tuple, SV value = &PL_sv_undef)
843	PPCODE:	1143	PPCODE:
844	{	1144	{
845	if (!SvOK (tuple))	1145	if (!SvOK (tuple))
846	XSRETURN_NO;	1146	XSRETURN_NO;
847		1147
848	if (!SvROK (tuple) \|\| SvTYPE (SvRV (tuple)) != SVt_PVAV)	1148	AV *av = ber_tuple (tuple);
849	croak ("ber_seq: tuple must be ber tuple (array-ref)");
850		1149
851	AV av = (AV )SvRV (tuple);	1150	UV data = SvUV (AvARRAY (av)[BER_DATA]);
852		1151
853	XPUSHs (	1152	XPUSHs (
854	SvIV (AvARRAY (av)[BER_CLASS ]) == ASN_UNIVERSAL	1153	SvIV (AvARRAY (av)[BER_CLASS]) == ASN_UNIVERSAL
855	&& SvIV (AvARRAY (av)[BER_TAG ]) == ASN_INTEGER32	1154	&& SvIV (AvARRAY (av)[BER_TAG ]) == ASN_INTEGER
856	&& !SvIV (AvARRAY (av)[BER_CONSTRUCTED])	1155	&& !SvIV (AvARRAY (av)[BER_FLAGS])
857	&& SvIV (AvARRAY (av)[BER_DATA ]) == value	1156	&& (!SvOK (value) \|\| data == SvUV (value))
858	? &PL_sv_yes : &PL_sv_no);	1157	? sv_2mortal (data ? newSVsv (AvARRAY (av)[BER_DATA]) : newSVpv ("0 but true", 0))
		1158	: &PL_sv_undef);
859	}	1159	}
860		1160
861	void	1161	void
862	ber_is_oid (SV tuple, SV oid)	1162	ber_is_oid (SV tuple, SV oid = &PL_sv_undef)
863	PPCODE:	1163	PPCODE:
864	{	1164	{
865	if (!SvOK (tuple))	1165	if (!SvOK (tuple))
866	XSRETURN_NO;	1166	XSRETURN_NO;
867		1167
868	if (!SvROK (tuple) \|\| SvTYPE (SvRV (tuple)) != SVt_PVAV)	1168	AV *av = ber_tuple (tuple);
869	croak ("ber_seq: tuple must be ber tuple (array-ref)");
870
871	AV av = (AV )SvRV (tuple);
872		1169
873	XPUSHs (	1170	XPUSHs (
874	SvIV (AvARRAY (av)[BER_CLASS ]) == ASN_UNIVERSAL	1171	SvIV (AvARRAY (av)[BER_CLASS]) == ASN_UNIVERSAL
875	&& SvIV (AvARRAY (av)[BER_TAG ]) == ASN_OBJECT_IDENTIFIER	1172	&& SvIV (AvARRAY (av)[BER_TAG ]) == ASN_OBJECT_IDENTIFIER
876	&& !SvIV (AvARRAY (av)[BER_CONSTRUCTED])	1173	&& !SvIV (AvARRAY (av)[BER_FLAGS])
877	&& sv_eq (AvARRAY (av)[BER_DATA], oid)	1174	&& (!SvOK (oid) \|\| sv_eq (AvARRAY (av)[BER_DATA], oid))
878	? &PL_sv_yes : &PL_sv_no);	1175	? newSVsv (AvARRAY (av)[BER_DATA]) : &PL_sv_undef);
879	}	1176	}
880		1177
881	#############################################################################	1178	#############################################################################
882		1179
883	void	1180	void
884	ber_encode (SV *tuple)	1181	ber_encode (SV tuple, SV profile = &PL_sv_undef)
885	PPCODE:	1182	PPCODE:
886	{	1183	{
		1184	cur_profile = SvPROFILE (profile);
887	buf_sv = sv_2mortal (NEWSV (0, 256));	1185	buf_sv = sv_2mortal (NEWSV (0, 256));
888	SvPOK_only (buf_sv);	1186	SvPOK_only (buf_sv);
889	set_buf (buf_sv);	1187	set_buf (buf_sv);
890		1188
891	encode_ber (tuple);	1189	encode_ber (tuple);
892		1190
893	SvCUR_set (buf_sv, cur - buf);	1191	SvCUR_set (buf_sv, cur - buf);
894	XPUSHs (buf_sv);	1192	XPUSHs (buf_sv);
895	}	1193	}
896		1194
		1195	SV *
		1196	ber_int (SV *sv)
		1197	CODE:
		1198	{
		1199	AV *av = newAV ();
		1200	av_fill (av, BER_ARRAYSIZE - 1);
		1201	AvARRAY (av)[BER_CLASS] = newSVcacheint (ASN_UNIVERSAL);
		1202	AvARRAY (av)[BER_TAG ] = newSVcacheint (ASN_INTEGER);
		1203	AvARRAY (av)[BER_FLAGS] = newSVcacheint (0);
		1204	AvARRAY (av)[BER_DATA ] = newSVsv (sv);
		1205	RETVAL = newRV_noinc ((SV *)av);
		1206	}
		1207	OUTPUT: RETVAL
		1208
		1209	# TODO: not arrayref, but elements?
		1210	SV *
		1211	ber_seq (SV *arrayref)
		1212	CODE:
		1213	{
		1214	AV *av = newAV ();
		1215	av_fill (av, BER_ARRAYSIZE - 1);
		1216	AvARRAY (av)[BER_CLASS] = newSVcacheint (ASN_UNIVERSAL);
		1217	AvARRAY (av)[BER_TAG ] = newSVcacheint (ASN_SEQUENCE);
		1218	AvARRAY (av)[BER_FLAGS] = newSVcacheint (1);
		1219	AvARRAY (av)[BER_DATA ] = newSVsv (arrayref);
		1220	RETVAL = newRV_noinc ((SV *)av);
		1221	}
		1222	OUTPUT: RETVAL
		1223
		1224	MODULE = Convert::BER::XS PACKAGE = Convert::BER::XS::Profile
		1225
		1226	SV *
		1227	new (SV *klass)
		1228	CODE:
		1229	RETVAL = profile_new ();
		1230	OUTPUT: RETVAL
		1231
		1232	void
		1233	set (SV *profile, int klass, int tag, int type)
		1234	CODE:
		1235	profile_set (SvPROFILE (profile), klass, tag, type);
		1236
		1237	IV
		1238	get (SV *profile, int klass, int tag)
		1239	CODE:
		1240	RETVAL = profile_lookup (SvPROFILE (profile), klass, tag);
		1241	OUTPUT: RETVAL
		1242
		1243	void
		1244	_set_default (SV *profile)
		1245	CODE:
		1246	default_profile = SvPROFILE (profile);
		1247
		1248

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Comparing Convert-BER-XS/XS.xs (file contents): Revision 1.3 by root, Fri Apr 19 19:46:29 2019 UTC vs. Revision 1.30 by root, Tue Apr 23 20:03:08 2019 UTC

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Comparing Convert-BER-XS/XS.xs (file contents):
Revision 1.3 by root, Fri Apr 19 19:46:29 2019 UTC vs.
Revision 1.30 by root, Tue Apr 23 20:03:08 2019 UTC