[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 1.27 by root, Mon Apr 22 11:01:49 2019 UTC

…		…
1	#include "EXTERN.h"	1	#include "EXTERN.h"
2	#include "perl.h"	2	#include "perl.h"
3	#include "XSUB.h"	3	#include "XSUB.h"
4		4
5	// C99 required	5	// C99 required!
		6	// this is not just for comments, but also for
		7	// integer constant semantics,
		8	// sscanf format modifiers and more.
6		9
7	enum {	10	enum {
8	// ASN_TAG	11	// ASN_TAG
9	ASN_BOOLEAN = 0x01,	12	ASN_BOOLEAN = 0x01,
10	ASN_INTEGER32 = 0x02,	13	ASN_INTEGER = 0x02,
11	ASN_BIT_STRING = 0x03,	14	ASN_BIT_STRING = 0x03,
12	ASN_OCTET_STRING = 0x04,	15	ASN_OCTET_STRING = 0x04,
13	ASN_NULL = 0x05,	16	ASN_NULL = 0x05,
14	ASN_OBJECT_IDENTIFIER = 0x06,	17	ASN_OBJECT_IDENTIFIER = 0x06,
15	ASN_OID = 0x06, //X	18	ASN_OID = 0x06,
16	ASN_OBJECT_DESCRIPTOR = 0x07, //X	19	ASN_OBJECT_DESCRIPTOR = 0x07,
17	ASN_EXTERNAL = 0x08, //X	20	ASN_EXTERNAL = 0x08,
18	ASN_REAL = 0x09, //X	21	ASN_REAL = 0x09,
19	ASN_ENUMERATED = 0x0a, //X	22	ASN_ENUMERATED = 0x0a,
20	ASN_EMBEDDED_PDV = 0x0b, //X	23	ASN_EMBEDDED_PDV = 0x0b,
21	ASN_UTF8_STRING = 0x0c, //X	24	ASN_UTF8_STRING = 0x0c,
22	ASN_RELATIVE_OID = 0x0d, //X	25	ASN_RELATIVE_OID = 0x0d,
23	ASN_SEQUENCE = 0x10,	26	ASN_SEQUENCE = 0x10,
24	ASN_SET = 0x11, //X	27	ASN_SET = 0x11,
25	ASN_NUMERIC_STRING = 0x12, //X	28	ASN_NUMERIC_STRING = 0x12,
26	ASN_PRINTABLE_STRING = 0x13, //X	29	ASN_PRINTABLE_STRING = 0x13,
27	ASN_TELETEX_STRING = 0x14, //X	30	ASN_TELETEX_STRING = 0x14,
28	ASN_T61_STRING = 0x14, //X	31	ASN_T61_STRING = 0x14,
29	ASN_VIDEOTEX_STRING = 0x15, //X	32	ASN_VIDEOTEX_STRING = 0x15,
30	ASN_IA5_STRING = 0x16, //X	33	ASN_IA5_STRING = 0x16,
31	ASN_ASCII_STRING = 0x16, //X	34	ASN_ASCII_STRING = 0x16,
32	ASN_UTC_TIME = 0x17, //X	35	ASN_UTC_TIME = 0x17,
33	ASN_GENERALIZED_TIME = 0x18, //X	36	ASN_GENERALIZED_TIME = 0x18,
34	ASN_GRAPHIC_STRING = 0x19, //X	37	ASN_GRAPHIC_STRING = 0x19,
35	ASN_VISIBLE_STRING = 0x1a, //X	38	ASN_VISIBLE_STRING = 0x1a,
36	ASN_ISO646_STRING = 0x1a, //X	39	ASN_ISO646_STRING = 0x1a,
37	ASN_GENERAL_STRING = 0x1b, //X	40	ASN_GENERAL_STRING = 0x1b,
38	ASN_UNIVERSAL_STRING = 0x1c, //X	41	ASN_UNIVERSAL_STRING = 0x1c,
39	ASN_CHARACTER_STRING = 0x1d, //X	42	ASN_CHARACTER_STRING = 0x1d,
40	ASN_BMPSTRING = 0x1e, //X	43	ASN_BMP_STRING = 0x1e,
41		44
42	ASN_TAG_BER = 0x1f,	45	ASN_TAG_BER = 0x1f,
43	ASN_TAG_MASK = 0x1f,	46	ASN_TAG_MASK = 0x1f,
44		47
45	// primitive/constructed	48	// primitive/constructed
46	ASN_CONSTRUCTED = 0x20,	49	ASN_CONSTRUCTED = 0x20,
47		50
48	// ASN_CLASS	51	// ASN_CLASS
49	ASN_UNIVERSAL = 0x00,	52	ASN_UNIVERSAL = 0x00,
50	ASN_APPLICATION = 0x40,	53	ASN_APPLICATION = 0x01,
51	ASN_CONTEXT = 0x80,	54	ASN_CONTEXT = 0x02,
52	ASN_PRIVATE = 0xc0,	55	ASN_PRIVATE = 0x03,
53		56
54	ASN_CLASS_MASK = 0xc0,	57	ASN_CLASS_MASK = 0xc0,
55	ASN_CLASS_SHIFT = 6,	58	ASN_CLASS_SHIFT = 6,
56		59
57	// ASN_APPLICATION SNMP	60	// ASN_APPLICATION SNMP
58	SNMP_IPADDRESS = 0x00,	61	SNMP_IPADDRESS = 0x00,
59	SNMP_COUNTER32 = 0x01,	62	SNMP_COUNTER32 = 0x01,
		63	SNMP_GAUGE32 = 0x02,
60	SNMP_UNSIGNED32 = 0x02,	64	SNMP_UNSIGNED32 = 0x02,
61	SNMP_TIMETICKS = 0x03,	65	SNMP_TIMETICKS = 0x03,
62	SNMP_OPAQUE = 0x04,	66	SNMP_OPAQUE = 0x04,
63	SNMP_COUNTER64 = 0x06,	67	SNMP_COUNTER64 = 0x06,
64	};	68	};
65		69
66	enum {	70	enum {
		71	BER_TYPE_BYTES,
		72	BER_TYPE_UTF8,
		73	BER_TYPE_UCS2,
		74	BER_TYPE_UCS4,
		75	BER_TYPE_INT,
		76	BER_TYPE_OID,
		77	BER_TYPE_RELOID,
		78	BER_TYPE_NULL,
		79	BER_TYPE_BOOL,
		80	BER_TYPE_REAL,
		81	BER_TYPE_IPADDRESS,
		82	BER_TYPE_CROAK,
		83	};
		84
		85	enum {
67	BER_CLASS = 0,	86	BER_CLASS = 0,
68	BER_TAG = 1,	87	BER_TAG = 1,
69	BER_CONSTRUCTED = 2,	88	BER_FLAGS = 2,
70	BER_DATA = 3,	89	BER_DATA = 3,
71	BER_ARRAYSIZE	90	BER_ARRAYSIZE
72	};	91	};
73		92
74	#define MAX_OID_STRLEN 4096	93	#define MAX_OID_STRLEN 4096
75		94
		95	typedef void profile_type;
		96
		97	static profile_type cur_profile, default_profile;
76	static SV *buf_sv; // encoding buffer	98	static SV *buf_sv; // encoding buffer
77	static U8 buf, cur, *end; // buffer start, current, end	99	static U8 buf, cur, *end; // buffer start, current, end
		100
		101	#if PERL_VERSION < 18
		102	# define utf8_to_uvchr_buf(s,e,l) utf8_to_uvchr (s, l)
		103	#endif
78		104
79	#if __GNUC__ >= 3	105	#if __GNUC__ >= 3
80	# define expect(expr,value) __builtin_expect ((expr), (value))	106	# define expect(expr,value) __builtin_expect ((expr), (value))
81	# define INLINE static inline	107	# define INLINE static inline
82	#else	108	#else
85	#endif	111	#endif
86		112
87	#define expect_false(expr) expect ((expr) != 0, 0)	113	#define expect_false(expr) expect ((expr) != 0, 0)
88	#define expect_true(expr) expect ((expr) != 0, 1)	114	#define expect_true(expr) expect ((expr) != 0, 1)
89		115
		116	/////////////////////////////////////////////////////////////////////////////
		117
		118	static SV *sviv_cache[32];
		119
90	// for "small" integers, return a readonly sv, otherwise create a new one	120	// for "small" integers, return a readonly sv, otherwise create a new one
91	static SV *newSVcacheint (int val)	121	static SV *newSVcacheint (int val)
92	{	122	{
93	static SV *cache[32];
94
95	if (expect_false (val < 0 \|\| val >= sizeof (cache)))	123	if (expect_false (val < 0 \|\| val >= sizeof (sviv_cache)))
96	return newSViv (val);	124	return newSViv (val);
97		125
98	if (expect_false (!cache [val]))	126	if (expect_false (!sviv_cache [val]))
99	{	127	{
100	cache [val] = newSVuv (val);	128	sviv_cache [val] = newSVuv (val);
101	SvREADONLY_on (cache [val]);	129	SvREADONLY_on (sviv_cache [val]);
102	}	130	}
103		131
104	return SvREFCNT_inc_NN (cache [val]);	132	return SvREFCNT_inc_NN (sviv_cache [val]);
		133	}
		134
		135	/////////////////////////////////////////////////////////////////////////////
		136
		137	static HV *profile_stash;
		138
		139	static profile_type *
		140	SvPROFILE (SV *profile)
		141	{
		142	if (!SvOK (profile))
		143	return default_profile;
		144
		145	if (!SvROK (profile))
		146	croak ("Convert::BER::XS::Profile expected");
		147
		148	profile = SvRV (profile);
		149
		150	if (SvSTASH (profile) != profile_stash)
		151	croak ("Convert::BER::XS::Profile expected");
		152
		153	return (void *)profile;
		154	}
		155
		156	static int
		157	profile_lookup (profile_type *profile, int klass, int tag)
		158	{
		159	SV sv = (SV )profile;
		160	U32 idx = (tag << 2) + klass;
		161
		162	if (expect_false (idx >= SvCUR (sv)))
		163	return BER_TYPE_BYTES;
		164
		165	return SvPVX (sv)[idx];
		166	}
		167
		168	static void
		169	profile_set (profile_type *profile, int klass, int tag, int type)
		170	{
		171	SV sv = (SV )profile;
		172	U32 idx = (tag << 2) + klass;
		173	STRLEN oldlen = SvCUR (sv);
		174	STRLEN newlen = idx + 2;
		175
		176	if (idx >= oldlen)
		177	{
		178	sv_grow (sv, newlen);
		179	memset (SvPVX (sv) + oldlen, BER_TYPE_BYTES, newlen - oldlen);
		180	SvCUR_set (sv, newlen);
		181	}
		182
		183	SvPVX (sv)[idx] = type;
		184	}
		185
		186	static SV *
		187	profile_new (void)
		188	{
		189	SV *sv = newSVpvn ("", 0);
		190
		191	static const struct {
		192	int klass;
		193	int tag;
		194	int type;
		195	} *celem, default_map[] = {
		196	{ ASN_UNIVERSAL, ASN_BOOLEAN , BER_TYPE_BOOL },
		197	{ ASN_UNIVERSAL, ASN_INTEGER , BER_TYPE_INT },
		198	{ ASN_UNIVERSAL, ASN_NULL , BER_TYPE_NULL },
		199	{ ASN_UNIVERSAL, ASN_OBJECT_IDENTIFIER, BER_TYPE_OID },
		200	{ ASN_UNIVERSAL, ASN_RELATIVE_OID , BER_TYPE_RELOID },
		201	{ ASN_UNIVERSAL, ASN_REAL , BER_TYPE_REAL },
		202	{ ASN_UNIVERSAL, ASN_ENUMERATED , BER_TYPE_INT },
		203	{ ASN_UNIVERSAL, ASN_UTF8_STRING , BER_TYPE_UTF8 },
		204	{ ASN_UNIVERSAL, ASN_BMP_STRING , BER_TYPE_UCS2 },
		205	{ ASN_UNIVERSAL, ASN_UNIVERSAL_STRING , BER_TYPE_UCS4 },
		206	};
		207
		208	for (celem = default_map + sizeof (default_map) / sizeof (default_map [0]); celem-- > default_map; )
		209	profile_set ((profile_type *)sv, celem->klass, celem->tag, celem->type);
		210
		211	return sv_bless (newRV_noinc (sv), profile_stash);
105	}	212	}
106		213
107	/////////////////////////////////////////////////////////////////////////////	214	/////////////////////////////////////////////////////////////////////////////
108	// decoder	215	// decoder
109		216
…		…
120	error ("unexpected end of message buffer");	227	error ("unexpected end of message buffer");
121	}	228	}
122		229
123	// get_* functions fetch something from the buffer	230	// get_* functions fetch something from the buffer
124	// decode_* functions use get_* fun ctions to decode ber values	231	// decode_* functions use get_* fun ctions to decode ber values
		232
		233	// get single octet
		234	static U8
		235	get_u8 (void)
		236	{
		237	if (cur == end)
		238	error ("unexpected end of message buffer");
		239
		240	return *cur++;
		241	}
125		242
126	// get n octets	243	// get n octets
127	static U8 *	244	static U8 *
128	get_n (UV count)	245	get_n (UV count)
129	{	246	{
…		…
131	U8 *res = cur;	248	U8 *res = cur;
132	cur += count;	249	cur += count;
133	return res;	250	return res;
134	}	251	}
135		252
136	// get single octet
137	static U8
138	get_u8 (void)
139	{
140	if (cur == end)
141	error ("unexpected end of message buffer");
142
143	return *cur++;
144	}
145
146	// get ber-encoded integer (i.e. pack "w")	253	// get ber-encoded integer (i.e. pack "w")
147	static U32	254	static UV
148	get_w (void)	255	get_w (void)
149	{	256	{
150	U32 res = 0;	257	UV res = 0;
		258	U8 c = get_u8 ();
		259
		260	if (expect_false (c == 0x80))
		261	error ("illegal BER padding (X.690 8.1.2.4.2, 8.19.2)");
151		262
152	for (;;)	263	for (;;)
153	{	264	{
154	U8 c = get_u8 ();	265	if (expect_false (res >> UVSIZE * 8 - 7))
		266	error ("BER variable length integer overflow");
		267
155	res = (res << 7) \| (c & 0x7f);	268	res = (res << 7) \| (c & 0x7f);
156		269
157	if (!(c & 0x80))	270	if (!(c & 0x80))
158	return res;	271	return res;
159	}
160	}
161		272
		273	c = get_u8 ();
		274	}
		275	}
		276
162	static U32	277	static UV
163	get_length (void)	278	get_length (void)
164	{	279	{
165	U32 res = get_u8 ();	280	UV res = get_u8 ();
166		281
167	if (res & 0x80)	282	if (res & 0x80)
168	{	283	{
169	int cnt = res & 0x7f;	284	int cnt = res & 0x7f;
170	res = 0;	285	res = 0;
171		286
172	switch (cnt)	287	switch (cnt)
173	{	288	{
174	case 0:	289	case 0:
175	error ("indefinite ASN.1 lengths not supported");	290	error ("indefinite BER value lengths not supported");
176	return 0;	291
		292	case 0x7f:
		293	error ("BER reserved value in length (X.690 8.1.3.5)");
177		294
178	default:	295	default:
179	error ("ASN.1 length too long");	296	error ("BER value length too long (must fit into UV)");
180	return 0;
181		297
		298	#if UVSIZE > 4
		299	case 8: res = (res << 8) \| get_u8 ();
		300	case 7: res = (res << 8) \| get_u8 ();
		301	case 6: res = (res << 8) \| get_u8 ();
		302	case 5: res = (res << 8) \| get_u8 ();
		303	#endif
182	case 4: res = (res << 8) \| get_u8 ();	304	case 4: res = (res << 8) \| get_u8 ();
183	case 3: res = (res << 8) \| get_u8 ();	305	case 3: res = (res << 8) \| get_u8 ();
184	case 2: res = (res << 8) \| get_u8 ();	306	case 2: res = (res << 8) \| get_u8 ();
185	case 1: res = (res << 8) \| get_u8 ();	307	case 1: res = (res << 8) \| get_u8 ();
186	}	308	}
187	}	309	}
188		310
189	return res;	311	return res;
190	}	312	}
191		313
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 *	314	static SV *
220	decode_integer32 (void)	315	decode_int (void)
221	{	316	{
222	return newSViv ((I32)get_integer32 ());	317	UV len = get_length ();
		318
		319	if (!len)
		320	error ("invalid BER_TYPE_INT length zero (X.690 8.3.1)");
		321
		322	U8 *data = get_n (len);
		323
		324	if (expect_false (len > 1))
		325	{
		326	U16 mask = (data [0] << 8) \| data [1] & 0xff80;
		327
		328	if (expect_false (mask == 0xff80 \|\| mask == 0x0000))
		329	error ("illegal padding in BER_TYPE_INT (X.690 8.3.2)");
		330	}
		331
		332	int negative = data [0] & 0x80;
		333
		334	UV val = negative ? -1 : 0; // copy signbit to all bits
		335
		336	if (len > UVSIZE + (!negative && !*data))
		337	error ("BER_TYPE_INT overflow");
		338
		339	do
		340	val = (val << 8) \| *data++;
		341	while (--len);
		342
		343	// the cast to IV relies on implementation-defined behaviour (two's complement cast)
		344	// but that's ok, as perl relies on it as well.
		345	return negative ? newSViv ((IV)val) : newSVuv (val);
223	}	346	}
224		347
225	static SV *	348	static SV *
226	decode_unsigned32 (void)	349	decode_data (void)
227	{	350	{
228	return newSVuv ((U32)get_integer32 ());
229	}
230
231	#if IVSIZE >= 8
232
233	static U64TYPE
234	get_integer64 (void)
235	{
236	U32 length = get_length ();	351	UV len = get_length ();
237		352	return newSVpvn ((char *)get_n (len), len);
238	if (length <= 0)
239	{
240	error ("INTEGER64 length equal to zero");
241	return 0;
242	}
243
244	U8 *data = get_n (length);
245
246	if (length > 9 \|\| (length > 8 && data [0]))
247	{
248	error ("INTEGER64 length too long");
249	return 0;
250	}
251
252	U64TYPE res = data [0] & 0x80 ? 0xffffffffffffffff : 0;
253
254	while (length--)
255	res = (res << 8) \| *data++;
256
257	return res;
258	}	353	}
259		354
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	355	// helper for decode_object_identifier
283	static char *	356	static char *
284	write_uv (char *buf, U32 u)	357	write_uv (char *buf, UV u)
285	{	358	{
286	// the one-digit case is absolutely predominant, so this pays off (hopefully)	359	// the one-digit case is absolutely predominant, so this pays off (hopefully)
287	if (u < 10)	360	if (expect_true (u < 10))
288	*buf++ = u + '0';	361	*buf++ = u + '0';
289	else	362	else
290	{	363	{
		364	// this could be done much faster using branchless fixed-point arithmetics
291	char *beg = buf;	365	char *beg = buf;
292		366
293	do	367	do
294	{	368	{
295	*buf++ = u % 10 + '0';	369	*buf++ = u % 10 + '0';
296	u /= 10;	370	u /= 10;
297	}	371	}
298	while (u);	372	while (u);
299		373
300	// reverse digits	374	// reverse digits
301	for (char *ptr = buf; --ptr != beg; ++beg)	375	char *ptr = buf;
		376	while (--ptr > beg)
302	{	377	{
303	char c = *ptr;	378	char c = *ptr;
304	ptr = beg;	379	ptr = beg;
305	*beg = c;	380	*beg = c;
		381	++beg;
306	}	382	}
307	}	383	}
308		384
309	return buf;	385	return buf;
310	}	386	}
311		387
312	static SV *	388	static SV *
313	decode_object_identifier (void)	389	decode_oid (int relative)
314	{	390	{
315	U32 length = get_length ();	391	UV len = get_length ();
316		392
317	if (length <= 0)	393	if (len <= 0)
318	{	394	{
319	error ("OBJECT IDENTIFIER length equal to zero");	395	error ("BER_TYPE_OID length must not be zero");
320	return &PL_sv_undef;	396	return &PL_sv_undef;
321	}	397	}
322		398
323	U8 *end = cur + length;	399	U8 *end = cur + len;
324	U32 w = get_w ();	400	UV w = get_w ();
325		401
326	static char oid[MAX_OID_STRLEN]; // must be static	402	static char oid[MAX_OID_STRLEN]; // static, because too large for stack
327	char *app = oid;	403	char *app = oid;
328		404
		405	if (relative)
329	app = write_uv (app, (U8)w / 40);	406	app = write_uv (app, w);
		407	else
		408	{
		409	UV w1, w2;
		410
		411	if (w < 2 * 40)
		412	(w1 = w / 40), (w2 = w % 40);
		413	else
		414	(w1 = 2), (w2 = w - 2 * 40);
		415
		416	app = write_uv (app, w1);
330	*app++ = '.';	417	*app++ = '.';
331	app = write_uv (app, (U8)w % 40);	418	app = write_uv (app, w2);
		419	}
332		420
		421	while (cur < end)
		422	{
333	// we assume an oid component is never > 64 bytes	423	// we assume an oid component is never > 64 digits
334	while (cur < end && oid + sizeof (oid) - app > 64)	424	if (oid + sizeof (oid) - app < 64)
335	{	425	croak ("BER_TYPE_OID to long to decode");
		426
336	w = get_w ();	427	w = get_w ();
337	*app++ = '.';	428	*app++ = '.';
338	app = write_uv (app, w);	429	app = write_uv (app, w);
339	}	430	}
340		431
341	return newSVpvn (oid, app - oid);	432	return newSVpvn (oid, app - oid);
342	}	433	}
343		434
		435	// TODO: this is unacceptably slow
344	static SV *	436	static SV *
		437	decode_ucs (int chrsize)
		438	{
		439	SV *res = NEWSV (0, 0);
		440
		441	UV len = get_length ();
		442
		443	if (len & (chrsize - 1))
		444	croak ("BER_TYPE_UCS has an invalid number of octets (%d)", len);
		445
		446	while (len)
		447	{
		448	U8 b1 = get_u8 ();
		449	U8 b2 = get_u8 ();
		450	U32 chr = (b1 << 8) \| b2;
		451
		452	if (chrsize == 4)
		453	{
		454	U8 b3 = get_u8 ();
		455	U8 b4 = get_u8 ();
		456	chr = (chr << 16) \| (b3 << 8) \| b4;
		457	}
		458
		459	U8 uchr [UTF8_MAXBYTES];
		460	int uclen = uvuni_to_utf8 (uchr, chr) - uchr;
		461
		462	sv_catpvn (res, (const char *)uchr, uclen);
		463	len -= chrsize;
		464	}
		465
		466	SvUTF8_on (res);
		467
		468	return res;
		469	}
		470
		471	static SV *
345	decode_ber ()	472	decode_ber (void)
346	{	473	{
347	int identifier = get_u8 ();	474	int identifier = get_u8 ();
348		475
349	SV *res;	476	SV *res;
350		477
351	int constructed = identifier & ASN_CONSTRUCTED;	478	int constructed = identifier & ASN_CONSTRUCTED;
352	int klass = identifier & ASN_CLASS_MASK;	479	int klass = (identifier & ASN_CLASS_MASK) >> ASN_CLASS_SHIFT;
353	int tag = identifier & ASN_TAG_MASK;	480	int tag = identifier & ASN_TAG_MASK;
354		481
355	if (tag == ASN_TAG_BER)	482	if (tag == ASN_TAG_BER)
356	tag = get_w ();	483	tag = get_w ();
357		484
358	if (tag == ASN_TAG_BER)
359	tag = get_w ();
360
361	if (constructed)	485	if (constructed)
362	{	486	{
363	U32 len = get_length ();	487	UV len = get_length ();
364	U32 seqend = (cur - buf) + len;	488	UV seqend = (cur - buf) + len;
365	AV av = (AV )sv_2mortal ((SV *)newAV ());	489	AV av = (AV )sv_2mortal ((SV *)newAV ());
366		490
367	while (cur < buf + seqend)	491	while (cur < buf + seqend)
368	av_push (av, decode_ber ());	492	av_push (av, decode_ber ());
369		493
370	if (cur > buf + seqend)	494	if (cur > buf + seqend)
371	croak ("constructed type %02x overflow (%x %x)\n", identifier, cur - buf, seqend);	495	croak ("CONSTRUCTED type %02x length overflow (0x%x 0x%x)\n", identifier, (int)(cur - buf), (int)seqend);
372		496
373	res = newRV_inc ((SV *)av);	497	res = newRV_inc ((SV *)av);
374	}	498	}
375	else	499	else
376	switch (identifier)	500	switch (profile_lookup (cur_profile, klass, tag))
377	{	501	{
378	case ASN_NULL:	502	case BER_TYPE_NULL:
		503	{
		504	UV len = get_length ();
		505
		506	if (len)
		507	croak ("BER_TYPE_NULL value with non-zero length %d encountered (X.690 8.8.2)", len);
		508
379	res = &PL_sv_undef;	509	res = &PL_sv_undef;
		510	}
380	break;	511	break;
381		512
382	case ASN_OBJECT_IDENTIFIER:	513	case BER_TYPE_BOOL:
		514	{
		515	UV len = get_length ();
		516
		517	if (len != 1)
		518	croak ("BER_TYPE_BOOLEAN value with invalid length %d encountered (X.690 8.2.1)", len);
		519
		520	res = newSVcacheint (!!get_u8 ());
		521	}
		522	break;
		523
		524	case BER_TYPE_OID:
383	res = decode_object_identifier ();	525	res = decode_oid (0);
384	break;	526	break;
385		527
386	case ASN_INTEGER32:	528	case BER_TYPE_RELOID:
		529	res = decode_oid (1);
		530	break;
		531
		532	case BER_TYPE_INT:
387	res = decode_integer32 ();	533	res = decode_int ();
388	break;	534	break;
389		535
390	case ASN_APPLICATION \| SNMP_UNSIGNED32:	536	case BER_TYPE_UTF8:
391	case ASN_APPLICATION \| SNMP_COUNTER32:	537	res = decode_data ();
392	case ASN_APPLICATION \| SNMP_TIMETICKS:	538	SvUTF8_on (res);
		539	break;
		540
		541	case BER_TYPE_BYTES:
		542	res = decode_data ();
		543	break;
		544
		545	case BER_TYPE_IPADDRESS:
		546	{
		547	UV len = get_length ();
		548
		549	if (len != 4)
		550	croak ("BER_TYPE_IPADDRESS type with invalid length %d encountered (RFC 2578 7.1.5)", len);
		551
		552	U8 c1 = get_u8 ();
		553	U8 c2 = get_u8 ();
		554	U8 c3 = get_u8 ();
		555	U8 c4 = get_u8 ();
		556
		557	res = newSVpvf ("%d.%d.%d.%d", c1, c2, c3, c4);
		558	}
		559	break;
		560
		561	case BER_TYPE_UCS2:
		562	res = decode_ucs (2);
		563	break;
		564
		565	case BER_TYPE_UCS4:
393	res = decode_unsigned32 ();	566	res = decode_ucs (4);
394	break;	567	break;
395		568
396	#if 0 // handled by default case	569	case BER_TYPE_REAL:
397	case ASN_OCTET_STRING:	570	error ("BER_TYPE_REAL not implemented");
398	case ASN_APPLICATION \| ASN_IPADDRESS:
399	case ASN_APPLICATION \| ASN_OPAQUE:
400	res = decode_octet_string ();
401	break;
402	#endif
403		571
404	case ASN_APPLICATION \| SNMP_COUNTER64:	572	case BER_TYPE_CROAK:
405	res = decode_integer64 ();	573	croak ("class/tag %d/%d mapped to BER_TYPE_CROAK", klass, tag);
406	break;
407		574
408	default:	575	default:
409	res = decode_octet_string ();	576	croak ("unconfigured/unsupported class/tag %d/%d", klass, tag);
410	break;
411	}	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
		680	#if UVSIZE > 4
		681	cur = val >> 56; cur += cur > 0;
		682	cur = val >> 48; cur += cur > 0;
		683	cur = val >> 40; cur += cur > 0;
		684	cur = val >> 32; cur += cur > 0;
		685	#endif
507	cur = val >> 24; cur += cur > 0;	686	cur = val >> 24; cur += cur > 0;
508	cur = val >> 16; cur += cur > 0;	687	cur = val >> 16; cur += cur > 0;
509	cur = val >> 8; cur += cur > 0;	688	cur = val >> 8; cur += cur > 0;
510	*cur = val ; cur += 1;	689	*cur = val ; cur += 1;
511		690
…		…
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 (5 + 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	return val < 0x7fU
529	? 1	708	? 1
530	: 2 + (val > 0xffU) + (val > 0xffffU) + (val > 0xffffffU);	709	: 2
		710	+ (val > 0xffU)
		711	+ (val > 0xffffU)
		712	+ (val > 0xffffffU)
		713	#if UVSIZE > 4
		714	+ (val > 0xffffffffU)
		715	+ (val > 0xffffffffffU)
		716	+ (val > 0xffffffffffffU)
		717	+ (val > 0xffffffffffffffU)
		718	#endif
		719	;
531	}	720	}
532		721
533	static void	722	static void
534	encode_octet_string (SV *sv)	723	encode_data (const char *ptr, STRLEN len)
535	{	724	{
536	STRLEN len;
537	char *ptr = SvPVbyte (sv, len);
538
539	put_length (len);	725	put_length (len);
540	need (len);
541	memcpy (cur, ptr, len);	726	memcpy (cur, ptr, len);
542	cur += len;	727	cur += len;
543	}	728	}
544		729
545	static void	730	static void
546	encode_integer32 (IV iv)	731	encode_uv (UV uv)
547	{	732	{
548	need (5);	733	}
		734
		735	static void
		736	encode_int (SV *sv)
		737	{
		738	need (8 + 1 + 1); // 64 bit + length + extra 0
		739
		740	if (expect_false (!SvIOK (sv)))
		741	sv_2iv_flags (sv, 0);
549		742
550	U8 *lenb = cur++;	743	U8 *lenb = cur++;
551		744
552	if (iv < 0)	745	if (SvIOK_notUV (sv))
553	{	746	{
		747	IV iv = SvIVX (sv);
		748
		749	if (expect_false (iv < 0))
		750	{
554	// get two's complement bit pattern - works even on hypthetical non-2c machines	751	// get two's complement bit pattern - works even on hypothetical non-2c machines
555	U32 uv = iv;	752	UV uv = iv;
556		753
		754	#if UVSIZE > 4
		755	*cur = uv >> 56; cur += !!(~uv & 0xff80000000000000U);
		756	*cur = uv >> 48; cur += !!(~uv & 0xffff800000000000U);
		757	*cur = uv >> 40; cur += !!(~uv & 0xffffff8000000000U);
		758	*cur = uv >> 32; cur += !!(~uv & 0xffffffff80000000U);
		759	#endif
557	*cur = uv >> 24; cur += !!(~uv & 0xff800000U);	760	*cur = uv >> 24; cur += !!(~uv & 0xffffffffff800000U);
558	*cur = uv >> 16; cur += !!(~uv & 0xffff8000U);	761	*cur = uv >> 16; cur += !!(~uv & 0xffffffffffff8000U);
559	*cur = uv >> 8; cur += !!(~uv & 0xffffff80U);	762	*cur = uv >> 8; cur += !!(~uv & 0xffffffffffffff80U);
560	*cur = uv ; cur += 1;	763	*cur = uv ; cur += 1;
561	}	764
562	else	765	*lenb = cur - lenb - 1;
		766
		767	return;
		768	}
563	{	769	}
564	cur = iv >> 24; cur += cur > 0;	770
565	cur = iv >> 16; cur += cur > 0;	771	UV uv = SvUV (sv);
566	cur = iv >> 8; cur += cur > 0;	772
		773	// prepend an extra 0 if the high bit is 1
		774	cur = 0; cur += !!(uv & ((UV)1 << (UVSIZE 8 - 1)));
		775
		776	#if UVSIZE > 4
		777	*cur = uv >> 56; cur += !!(uv & 0xff80000000000000U);
		778	*cur = uv >> 48; cur += !!(uv & 0xffff800000000000U);
		779	*cur = uv >> 40; cur += !!(uv & 0xffffff8000000000U);
		780	*cur = uv >> 32; cur += !!(uv & 0xffffffff80000000U);
		781	#endif
		782	*cur = uv >> 24; cur += !!(uv & 0xffffffffff800000U);
		783	*cur = uv >> 16; cur += !!(uv & 0xffffffffffff8000U);
		784	*cur = uv >> 8; cur += !!(uv & 0xffffffffffffff80U);
567	*cur = iv ; cur += 1;	785	*cur = uv ; cur += 1;
568	}
569		786
570	*lenb = cur - lenb - 1;	787	*lenb = cur - lenb - 1;
571	}	788	}
572		789
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	790	// we don't know the length yet, so we optimistically
593	// assume the length will need one octet later. if that	791	// assume the length will need one octet later. If that
594	// turns out to be wrong, we memove as needed.	792	// turns out to be wrong, we memmove as needed.
595	// mark the beginning	793	// mark the beginning
596	static STRLEN	794	static STRLEN
597	len_fixup_mark ()	795	len_fixup_mark (void)
598	{	796	{
599	return cur++ - buf;	797	return cur++ - buf;
600	}	798	}
601		799
602	// patch up the length	800	// patch up the length
…		…
631		829
632	return str;	830	return str;
633	}	831	}
634		832
635	static void	833	static void
636	encode_object_identifier (SV *oid)	834	encode_oid (SV *oid, int relative)
637	{	835	{
638	STRLEN slen;	836	STRLEN len;
639	char *ptr = SvPV (oid, slen); // utf8 vs. bytes does not matter	837	char *ptr = SvPV (oid, len); // utf8 vs. bytes does not matter
640		838
641	// we need at most as many octets as the string form	839	// we need at most as many octets as the string form
642	need (slen + 1);	840	need (len + 1);
643	STRLEN mark = len_fixup_mark ();	841	STRLEN mark = len_fixup_mark ();
644		842
645	UV w1, w2;	843	UV w1, w2;
646		844
		845	if (!relative)
		846	{
647	ptr = read_uv (ptr, &w1);	847	ptr = read_uv (ptr, &w1);
648	ptr = read_uv (ptr, &w2);	848	ptr = read_uv (ptr, &w2);
649		849
650	put_w_nocheck (w1 * 40 + w2);	850	put_w_nocheck (w1 * 40 + w2);
		851	}
651		852
652	while (*ptr)	853	while (*ptr)
653	{	854	{
654	ptr = read_uv (ptr, &w1);	855	ptr = read_uv (ptr, &w1);
655	put_w_nocheck (w1);	856	put_w_nocheck (w1);
656	}	857	}
657		858
658	len_fixup (mark);	859	len_fixup (mark);
659	}	860	}
660		861
		862	// check whether an SV is a BER tuple and returns its AV *
		863	static AV *
		864	ber_tuple (SV *tuple)
		865	{
		866	SV *rv;
		867
		868	if (expect_false (!SvROK (tuple) \|\| SvTYPE ((rv = SvRV (tuple))) != SVt_PVAV))
		869	croak ("BER tuple must be array-reference");
		870
		871	if (expect_false (SvRMAGICAL (rv)))
		872	croak ("BER tuple must not be tied");
		873
		874	if (expect_false (AvFILL ((AV *)rv) != BER_ARRAYSIZE - 1))
		875	croak ("BER tuple must contain exactly %d elements, not %d", BER_ARRAYSIZE, AvFILL ((AV *)rv) + 1);
		876
		877	return (AV *)rv;
		878	}
		879
		880	static void
		881	encode_ucs (SV *data, int chrsize)
		882	{
		883	STRLEN uchars = sv_len_utf8 (data);
		884	STRLEN len;;
		885	char *ptr = SvPVutf8 (data, len);
		886
		887	put_length (uchars * chrsize);
		888
		889	while (uchars--)
		890	{
		891	STRLEN uclen;
		892	UV uchr = utf8_to_uvchr_buf ((U8 )ptr, (U8 )ptr + len, &uclen);
		893
		894	ptr += uclen;
		895	len -= uclen;
		896
		897	if (chrsize == 4)
		898	{
		899	*cur++ = uchr >> 24;
		900	*cur++ = uchr >> 16;
		901	}
		902
		903	*cur++ = uchr >> 8;
		904	*cur++ = uchr;
		905	}
		906	}
661	static void	907	static void
662	encode_ber (SV *tuple)	908	encode_ber (SV *tuple)
663	{	909	{
664	if (expect_false (!SvROK (tuple) \|\| SvTYPE (SvRV (tuple)) != SVt_PVAV))	910	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		911
675	int klass = SvIV (AvARRAY (av)[BER_CLASS]);	912	int klass = SvIV (AvARRAY (av)[BER_CLASS]);
676	int tag = SvIV (AvARRAY (av)[BER_TAG]);	913	int tag = SvIV (AvARRAY (av)[BER_TAG]);
677	int constructed = SvIV (AvARRAY (av)[BER_CONSTRUCTED]) ? ASN_CONSTRUCTED : 0;	914	int constructed = SvIV (AvARRAY (av)[BER_FLAGS]) & 1 ? ASN_CONSTRUCTED : 0;
678	SV *data = AvARRAY (av)[BER_DATA];	915	SV *data = AvARRAY (av)[BER_DATA];
679		916
680	int identifier = (klass << ASN_CLASS_SHIFT) \| constructed;	917	int identifier = (klass << ASN_CLASS_SHIFT) \| constructed;
681		918
682	if (expect_false (tag >= ASN_TAG_BER))	919	if (expect_false (tag >= ASN_TAG_BER))
…		…
693	// and adjust later	930	// and adjust later
694	need (1);	931	need (1);
695	STRLEN mark = len_fixup_mark ();	932	STRLEN mark = len_fixup_mark ();
696		933
697	if (expect_false (!SvROK (data) \|\| SvTYPE (SvRV (data)) != SVt_PVAV))	934	if (expect_false (!SvROK (data) \|\| SvTYPE (SvRV (data)) != SVt_PVAV))
698	croak ("BER constructed data must be array-reference");	935	croak ("BER CONSTRUCTED data must be array-reference");
699		936
700	AV av = (AV )SvRV (data);	937	AV av = (AV )SvRV (data);
701	int fill = AvFILL (av);	938	int fill = AvFILL (av);
702		939
703	if (expect_false (SvRMAGICAL (av)))	940	if (expect_false (SvRMAGICAL (av)))
704	croak ("BER constructed data must not be tied");	941	croak ("BER CONSTRUCTED data must not be tied");
705		942
		943	int i;
706	for (int i = 0; i <= fill; ++i)	944	for (i = 0; i <= fill; ++i)
707	encode_ber (AvARRAY (av)[i]);	945	encode_ber (AvARRAY (av)[i]);
708		946
709	len_fixup (mark);	947	len_fixup (mark);
710	}	948	}
711	else	949	else
712	switch (identifier \| tag)	950	switch (profile_lookup (cur_profile, klass, tag))
713	{	951	{
714	case ASN_NULL:	952	case BER_TYPE_NULL:
715	put_length (0);	953	put_length (0);
716	break;	954	break;
717		955
718	case ASN_OBJECT_IDENTIFIER:	956	case BER_TYPE_BOOL:
		957	put_length (1);
		958	*cur++ = SvTRUE (data) ? 0xff : 0x00; // 0xff = DER/CER
		959	break;
		960
		961	case BER_TYPE_OID:
719	encode_object_identifier (data);	962	encode_oid (data, 0);
720	break;	963	break;
721		964
722	case ASN_INTEGER32:	965	case BER_TYPE_RELOID:
		966	encode_oid (data, 1);
		967	break;
		968
		969	case BER_TYPE_INT:
723	encode_integer32 (SvIV (data));	970	encode_int (data);
724	break;	971	break;
725		972
726	case ASN_APPLICATION \| SNMP_UNSIGNED32:	973	case BER_TYPE_BYTES:
727	case ASN_APPLICATION \| SNMP_COUNTER32:	974	{
728	case ASN_APPLICATION \| SNMP_TIMETICKS:	975	STRLEN len;
729	case ASN_APPLICATION \| SNMP_COUNTER64:	976	const char *ptr = SvPVbyte (data, len);
730	encode_unsigned64 (SvUV (data));	977	encode_data (ptr, len);
		978	}
731	break;	979	break;
		980
		981	case BER_TYPE_UTF8:
		982	{
		983	STRLEN len;
		984	const char *ptr = SvPVutf8 (data, len);
		985	encode_data (ptr, len);
		986	}
		987	break;
		988
		989	case BER_TYPE_IPADDRESS:
		990	{
		991	U8 ip[4];
		992	sscanf (SvPV_nolen (data), "%hhu.%hhu.%hhu.%hhu", ip + 0, ip + 1, ip + 2, ip + 3);
		993	encode_data ((const char *)ip, sizeof (ip));
		994	}
		995	break;
		996
		997	case BER_TYPE_UCS2:
		998	encode_ucs (data, 2);
		999	break;
		1000
		1001	case BER_TYPE_UCS4:
		1002	encode_ucs (data, 4);
		1003	break;
		1004
		1005	case BER_TYPE_REAL:
		1006	croak ("BER_TYPE_REAL not implemented");
		1007
		1008	case BER_TYPE_CROAK:
		1009	croak ("class/tag %d/%d mapped to BER_TYPE_CROAK", klass, tag);
732		1010
733	default:	1011	default:
734	encode_octet_string (data);	1012	croak ("unconfigured/unsupported class/tag %d/%d", klass, tag);
735	break;
736	}	1013	}
737		1014
738	}	1015	}
739		1016
740	/////////////////////////////////////////////////////////////////////////////	1017	/////////////////////////////////////////////////////////////////////////////
…		…
744	PROTOTYPES: ENABLE	1021	PROTOTYPES: ENABLE
745		1022
746	BOOT:	1023	BOOT:
747	{	1024	{
748	HV *stash = gv_stashpv ("Convert::BER::XS", 1);	1025	HV *stash = gv_stashpv ("Convert::BER::XS", 1);
		1026
		1027	profile_stash = gv_stashpv ("Convert::BER::XS::Profile", 1);
749		1028
750	static const struct {	1029	static const struct {
751	const char *name;	1030	const char *name;
752	IV iv;	1031	IV iv;
753	} *civ, const_iv[] = {	1032	} *civ, const_iv[] = {
754	{ "ASN_BOOLEAN", ASN_BOOLEAN },	1033	#define const_iv(name) { # name, name },
755	{ "ASN_INTEGER32", ASN_INTEGER32 },	1034	const_iv (ASN_BOOLEAN)
756	{ "ASN_BIT_STRING", ASN_BIT_STRING },	1035	const_iv (ASN_INTEGER)
757	{ "ASN_OCTET_STRING", ASN_OCTET_STRING },	1036	const_iv (ASN_BIT_STRING)
758	{ "ASN_NULL", ASN_NULL },	1037	const_iv (ASN_OCTET_STRING)
759	{ "ASN_OBJECT_IDENTIFIER", ASN_OBJECT_IDENTIFIER },	1038	const_iv (ASN_NULL)
760	{ "ASN_TAG_BER", ASN_TAG_BER },	1039	const_iv (ASN_OBJECT_IDENTIFIER)
761	{ "ASN_TAG_MASK", ASN_TAG_MASK },	1040	const_iv (ASN_OBJECT_DESCRIPTOR)
762	{ "ASN_CONSTRUCTED", ASN_CONSTRUCTED },	1041	const_iv (ASN_OID)
763	{ "ASN_UNIVERSAL", ASN_UNIVERSAL >> ASN_CLASS_SHIFT },	1042	const_iv (ASN_EXTERNAL)
764	{ "ASN_APPLICATION", ASN_APPLICATION >> ASN_CLASS_SHIFT },	1043	const_iv (ASN_REAL)
765	{ "ASN_CONTEXT", ASN_CONTEXT >> ASN_CLASS_SHIFT },	1044	const_iv (ASN_SEQUENCE)
766	{ "ASN_PRIVATE", ASN_PRIVATE >> ASN_CLASS_SHIFT },	1045	const_iv (ASN_ENUMERATED)
767	{ "ASN_CLASS_MASK", ASN_CLASS_MASK },	1046	const_iv (ASN_EMBEDDED_PDV)
768	{ "ASN_CLASS_SHIFT", ASN_CLASS_SHIFT },	1047	const_iv (ASN_UTF8_STRING)
769	{ "ASN_SEQUENCE", ASN_SEQUENCE },	1048	const_iv (ASN_RELATIVE_OID)
770	{ "SNMP_IPADDRESS", SNMP_IPADDRESS },	1049	const_iv (ASN_SET)
771	{ "SNMP_COUNTER32", SNMP_COUNTER32 },	1050	const_iv (ASN_NUMERIC_STRING)
772	{ "SNMP_UNSIGNED32", SNMP_UNSIGNED32 },	1051	const_iv (ASN_PRINTABLE_STRING)
773	{ "SNMP_TIMETICKS", SNMP_TIMETICKS },	1052	const_iv (ASN_TELETEX_STRING)
774	{ "SNMP_OPAQUE", SNMP_OPAQUE },	1053	const_iv (ASN_T61_STRING)
775	{ "SNMP_COUNTER64", SNMP_COUNTER64 },	1054	const_iv (ASN_VIDEOTEX_STRING)
		1055	const_iv (ASN_IA5_STRING)
		1056	const_iv (ASN_ASCII_STRING)
		1057	const_iv (ASN_UTC_TIME)
		1058	const_iv (ASN_GENERALIZED_TIME)
		1059	const_iv (ASN_GRAPHIC_STRING)
		1060	const_iv (ASN_VISIBLE_STRING)
		1061	const_iv (ASN_ISO646_STRING)
		1062	const_iv (ASN_GENERAL_STRING)
		1063	const_iv (ASN_UNIVERSAL_STRING)
		1064	const_iv (ASN_CHARACTER_STRING)
		1065	const_iv (ASN_BMP_STRING)
776		1066
777	{ "BER_CLASS" , BER_CLASS },	1067	const_iv (ASN_UNIVERSAL)
778	{ "BER_TAG" , BER_TAG },	1068	const_iv (ASN_APPLICATION)
779	{ "BER_CONSTRUCTED", BER_CONSTRUCTED },	1069	const_iv (ASN_CONTEXT)
780	{ "BER_DATA" , BER_DATA },	1070	const_iv (ASN_PRIVATE)
		1071
		1072	const_iv (BER_CLASS)
		1073	const_iv (BER_TAG)
		1074	const_iv (BER_FLAGS)
		1075	const_iv (BER_DATA)
		1076
		1077	const_iv (BER_TYPE_BYTES)
		1078	const_iv (BER_TYPE_UTF8)
		1079	const_iv (BER_TYPE_UCS2)
		1080	const_iv (BER_TYPE_UCS4)
		1081	const_iv (BER_TYPE_INT)
		1082	const_iv (BER_TYPE_OID)
		1083	const_iv (BER_TYPE_RELOID)
		1084	const_iv (BER_TYPE_NULL)
		1085	const_iv (BER_TYPE_BOOL)
		1086	const_iv (BER_TYPE_REAL)
		1087	const_iv (BER_TYPE_IPADDRESS)
		1088	const_iv (BER_TYPE_CROAK)
		1089
		1090	const_iv (SNMP_IPADDRESS)
		1091	const_iv (SNMP_COUNTER32)
		1092	const_iv (SNMP_GAUGE32)
		1093	const_iv (SNMP_UNSIGNED32)
		1094	const_iv (SNMP_TIMETICKS)
		1095	const_iv (SNMP_OPAQUE)
		1096	const_iv (SNMP_COUNTER64)
781	};	1097	};
782		1098
783	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)	1099	for (civ = const_iv + sizeof (const_iv) / sizeof (const_iv [0]); civ > const_iv; civ--)
784	newCONSTSUB (stash, (char *)civ[-1].name, newSViv (civ[-1].iv));	1100	newCONSTSUB (stash, (char *)civ[-1].name, newSViv (civ[-1].iv));
785	}	1101	}
786		1102
787	SV *	1103	void
788	ber_decode (SV *ber)	1104	ber_decode (SV ber, SV profile = &PL_sv_undef)
		1105	ALIAS:
		1106	ber_decode_prefix = 1
789	CODE:	1107	PPCODE:
790	{	1108	{
		1109	cur_profile = SvPROFILE (profile);
791	STRLEN len;	1110	STRLEN len;
792
793	buf = SvPVbyte (ber, len);	1111	buf = (U8 *)SvPVbyte (ber, len);
794	cur = buf;	1112	cur = buf;
795	end = buf + len;	1113	end = buf + len;
796		1114
797	RETVAL = decode_ber ();	1115	SV *tuple = decode_ber ();
		1116
		1117	EXTEND (SP, 2);
		1118	PUSHs (sv_2mortal (tuple));
		1119
		1120	if (ix)
		1121	PUSHs (sv_2mortal (newSViv (cur - buf)));
		1122	else if (cur != end)
		1123	error ("trailing garbage after BER value");
798	}	1124	}
799	OUTPUT: RETVAL
800		1125
801	void	1126	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)	1127	ber_is (SV tuple, SV klass = &PL_sv_undef, SV tag = &PL_sv_undef, SV flags = &PL_sv_undef, SV *data = &PL_sv_undef)
803	PROTOTYPE: $;$$$
804	PPCODE:	1128	PPCODE:
805	{	1129	{
806	if (!SvOK (tuple))	1130	if (!SvOK (tuple))
807	XSRETURN_NO;	1131	XSRETURN_NO;
808		1132
809	if (!SvROK (tuple) \|\| SvTYPE (SvRV (tuple)) != SVt_PVAV)	1133	if (!SvROK (tuple) \|\| SvTYPE (SvRV (tuple)) != SVt_PVAV)
810	croak ("ber_seq: tuple must be ber tuple (array-ref)");	1134	croak ("ber_is: tuple must be BER tuple (array-ref)");
811		1135
812	AV av = (AV )SvRV (tuple);	1136	AV av = (AV )SvRV (tuple);
813		1137
814	XPUSHs (	1138	XPUSHs (
815	(!SvOK (klass) \|\| SvIV (AvARRAY (av)[BER_CLASS ]) == SvIV (klass))	1139	(!SvOK (klass) \|\| SvIV (AvARRAY (av)[BER_CLASS]) == SvIV (klass))
816	&& (!SvOK (tag) \|\| SvIV (AvARRAY (av)[BER_TAG ]) == SvIV (tag))	1140	&& (!SvOK (tag) \|\| SvIV (AvARRAY (av)[BER_TAG ]) == SvIV (tag))
817	&& (!SvOK (constructed) \|\| !SvIV (AvARRAY (av)[BER_CONSTRUCTED]) == !SvIV (constructed))	1141	&& (!SvOK (flags) \|\| !SvIV (AvARRAY (av)[BER_FLAGS]) == !SvIV (flags))
818	&& (!SvOK (data) \|\| sv_eq (AvARRAY (av)[BER_DATA ], data))	1142	&& (!SvOK (data) \|\| sv_eq (AvARRAY (av)[BER_DATA ], data))
819	? &PL_sv_yes : &PL_sv_no);	1143	? &PL_sv_yes : &PL_sv_undef);
820	}	1144	}
821		1145
822	void	1146	void
823	ber_is_seq (SV *tuple)	1147	ber_is_seq (SV *tuple)
824	PPCODE:	1148	PPCODE:
825	{	1149	{
826	if (!SvOK (tuple))	1150	if (!SvOK (tuple))
827	XSRETURN_UNDEF;	1151	XSRETURN_UNDEF;
828		1152
829	if (!SvROK (tuple) \|\| SvTYPE (SvRV (tuple)) != SVt_PVAV)	1153	AV *av = ber_tuple (tuple);
830	croak ("ber_seq: tuple must be ber tuple (array-ref)");
831
832	AV av = (AV )SvRV (tuple);
833		1154
834	XPUSHs (	1155	XPUSHs (
835	SvIV (AvARRAY (av)[BER_CLASS ]) == ASN_UNIVERSAL	1156	SvIV (AvARRAY (av)[BER_CLASS]) == ASN_UNIVERSAL
836	&& SvIV (AvARRAY (av)[BER_TAG ]) == ASN_SEQUENCE	1157	&& SvIV (AvARRAY (av)[BER_TAG ]) == ASN_SEQUENCE
837	&& SvIV (AvARRAY (av)[BER_CONSTRUCTED])	1158	&& SvIV (AvARRAY (av)[BER_FLAGS])
838	? AvARRAY (av)[BER_DATA] : &PL_sv_undef);	1159	? AvARRAY (av)[BER_DATA] : &PL_sv_undef);
839	}	1160	}
840		1161
841	void	1162	void
842	ber_is_i32 (SV *tuple, IV value)	1163	ber_is_int (SV tuple, SV value = &PL_sv_undef)
843	PPCODE:	1164	PPCODE:
844	{	1165	{
845	if (!SvOK (tuple))	1166	if (!SvOK (tuple))
846	XSRETURN_NO;	1167	XSRETURN_NO;
847		1168
848	if (!SvROK (tuple) \|\| SvTYPE (SvRV (tuple)) != SVt_PVAV)	1169	AV *av = ber_tuple (tuple);
849	croak ("ber_seq: tuple must be ber tuple (array-ref)");
850		1170
851	AV av = (AV )SvRV (tuple);	1171	UV data = SvUV (AvARRAY (av)[BER_DATA]);
852		1172
853	XPUSHs (	1173	XPUSHs (
854	SvIV (AvARRAY (av)[BER_CLASS ]) == ASN_UNIVERSAL	1174	SvIV (AvARRAY (av)[BER_CLASS]) == ASN_UNIVERSAL
855	&& SvIV (AvARRAY (av)[BER_TAG ]) == ASN_INTEGER32	1175	&& SvIV (AvARRAY (av)[BER_TAG ]) == ASN_INTEGER
856	&& !SvIV (AvARRAY (av)[BER_CONSTRUCTED])	1176	&& !SvIV (AvARRAY (av)[BER_FLAGS])
857	&& SvIV (AvARRAY (av)[BER_DATA ]) == value	1177	&& (!SvOK (value) \|\| data == SvUV (value))
858	? &PL_sv_yes : &PL_sv_no);	1178	? sv_2mortal (data ? newSVsv (AvARRAY (av)[BER_DATA]) : newSVpv ("0 but true", 0))
		1179	: &PL_sv_undef);
859	}	1180	}
860		1181
861	void	1182	void
862	ber_is_oid (SV tuple, SV oid)	1183	ber_is_oid (SV tuple, SV oid = &PL_sv_undef)
863	PPCODE:	1184	PPCODE:
864	{	1185	{
865	if (!SvOK (tuple))	1186	if (!SvOK (tuple))
866	XSRETURN_NO;	1187	XSRETURN_NO;
867		1188
868	if (!SvROK (tuple) \|\| SvTYPE (SvRV (tuple)) != SVt_PVAV)	1189	AV *av = ber_tuple (tuple);
869	croak ("ber_seq: tuple must be ber tuple (array-ref)");
870
871	AV av = (AV )SvRV (tuple);
872		1190
873	XPUSHs (	1191	XPUSHs (
874	SvIV (AvARRAY (av)[BER_CLASS ]) == ASN_UNIVERSAL	1192	SvIV (AvARRAY (av)[BER_CLASS]) == ASN_UNIVERSAL
875	&& SvIV (AvARRAY (av)[BER_TAG ]) == ASN_OBJECT_IDENTIFIER	1193	&& SvIV (AvARRAY (av)[BER_TAG ]) == ASN_OBJECT_IDENTIFIER
876	&& !SvIV (AvARRAY (av)[BER_CONSTRUCTED])	1194	&& !SvIV (AvARRAY (av)[BER_FLAGS])
877	&& sv_eq (AvARRAY (av)[BER_DATA], oid)	1195	&& (!SvOK (oid) \|\| sv_eq (AvARRAY (av)[BER_DATA], oid))
878	? &PL_sv_yes : &PL_sv_no);	1196	? newSVsv (AvARRAY (av)[BER_DATA]) : &PL_sv_undef);
879	}	1197	}
880		1198
881	#############################################################################	1199	#############################################################################
882		1200
883	void	1201	void
884	ber_encode (SV *tuple)	1202	ber_encode (SV tuple, SV profile = &PL_sv_undef)
885	PPCODE:	1203	PPCODE:
886	{	1204	{
		1205	cur_profile = SvPROFILE (profile);
887	buf_sv = sv_2mortal (NEWSV (0, 256));	1206	buf_sv = sv_2mortal (NEWSV (0, 256));
888	SvPOK_only (buf_sv);	1207	SvPOK_only (buf_sv);
889	set_buf (buf_sv);	1208	set_buf (buf_sv);
890		1209
891	encode_ber (tuple);	1210	encode_ber (tuple);
892		1211
893	SvCUR_set (buf_sv, cur - buf);	1212	SvCUR_set (buf_sv, cur - buf);
894	XPUSHs (buf_sv);	1213	XPUSHs (buf_sv);
895	}	1214	}
896		1215
		1216	SV *
		1217	ber_int (SV *sv)
		1218	CODE:
		1219	{
		1220	AV *av = newAV ();
		1221	av_fill (av, BER_ARRAYSIZE - 1);
		1222	AvARRAY (av)[BER_CLASS] = newSVcacheint (ASN_UNIVERSAL);
		1223	AvARRAY (av)[BER_TAG ] = newSVcacheint (ASN_INTEGER);
		1224	AvARRAY (av)[BER_FLAGS] = newSVcacheint (0);
		1225	AvARRAY (av)[BER_DATA ] = newSVsv (sv);
		1226	RETVAL = newRV_noinc ((SV *)av);
		1227	}
		1228	OUTPUT: RETVAL
		1229
		1230	# TODO: not arrayref, but elements?
		1231	SV *
		1232	ber_seq (SV *arrayref)
		1233	CODE:
		1234	{
		1235	AV *av = newAV ();
		1236	av_fill (av, BER_ARRAYSIZE - 1);
		1237	AvARRAY (av)[BER_CLASS] = newSVcacheint (ASN_UNIVERSAL);
		1238	AvARRAY (av)[BER_TAG ] = newSVcacheint (ASN_SEQUENCE);
		1239	AvARRAY (av)[BER_FLAGS] = newSVcacheint (1);
		1240	AvARRAY (av)[BER_DATA ] = newSVsv (arrayref);
		1241	RETVAL = newRV_noinc ((SV *)av);
		1242	}
		1243	OUTPUT: RETVAL
		1244
		1245	MODULE = Convert::BER::XS PACKAGE = Convert::BER::XS::Profile
		1246
		1247	SV *
		1248	new (SV *klass)
		1249	CODE:
		1250	RETVAL = profile_new ();
		1251	OUTPUT: RETVAL
		1252
		1253	void
		1254	set (SV *profile, int klass, int tag, int type)
		1255	CODE:
		1256	profile_set (SvPROFILE (profile), klass, tag, type);
		1257
		1258	IV
		1259	get (SV *profile, int klass, int tag)
		1260	CODE:
		1261	RETVAL = profile_lookup (SvPROFILE (profile), klass, tag);
		1262	OUTPUT: RETVAL
		1263
		1264	void
		1265	_set_default (SV *profile)
		1266	CODE:
		1267	default_profile = SvPROFILE (profile);
		1268
		1269

Diff Legend

-–
+Removed lines
-+
+Added lines
-<
+Changed lines
->
+Changed lines

Comparing Convert-BER-XS/XS.xs (file contents): Revision 1.3 by root, Fri Apr 19 19:46:29 2019 UTC vs. Revision 1.27 by root, Mon Apr 22 11:01:49 2019 UTC

Diff Legend

Comparing Convert-BER-XS/XS.xs (file contents):
Revision 1.3 by root, Fri Apr 19 19:46:29 2019 UTC vs.
Revision 1.27 by root, Mon Apr 22 11:01:49 2019 UTC