certgen.c 44.5 KB
Newer Older
1
2
3
4
5
6
7
8
9
10
/*********************************************************************
######################################################################
##
##  Created by: Denis Filatov
##
##  Copyleft (c) 2015
##  This code is provided under the CeCill-C license agreement.
######################################################################
*********************************************************************/
#define _CRT_SECURE_NO_WARNINGS
11
12
#define _USE_MATH_DEFINES

13
#include <stdio.h>
14
15
16
17
#include "../cxml/cxml.h"
#include "../cshared/copts.h"
#include "../cshared/cserialize.h"
#include "../cshared/cstr.h"
18
19
#include "../cshared/cring.h"
#include "../cshared/cmem.h"
20
21
22
23
24
25
26
27
28
29
30

#include "ecc_api.h"
#include "mkgmtime.h"
#include <string.h>
#include <stdlib.h>
#include <ctype.h>
#include <assert.h>
#include <limits.h>
#include <time.h>
#include <math.h>

31
32
33
34
#if defined(__CYGWIN__)
#define floorl(X) __builtin_floor(X)
#endif

35
36
37
38
39
40
41
42
43
44
//#define DEBUG_BOOKMARKS
//#define DEBUG_DATA
#define MAX_BOOKMARKS 16

typedef struct bookmark_t bookmark_t;
struct bookmark_t {
	bookmark_t * prev;
	char       * ptr;
};

filatov's avatar
filatov committed
45
46
47
48
49
50
51
52
53
typedef enum {
	si_self,
	si_digest,
	si_certificate,
	si_certificate_chain,
	si_digest_with_other_algorithm,
	si_other
} SignerInfoType;

54
55
56
57
58
59
typedef struct cert_cxml_handler_t
{
	cxml_handler_t  h;
	unsigned int    subject_type;
	int             signer_type;
	const char    * signer;
filatov's avatar
filatov committed
60
	const char    * signer_digest;
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
	int             vr_type;
	int             sa_type;
	void          * verificationKey;
	void          * encryptionKey;

	int				pk_alg;
	int				pk_sym_alg;
	int				pk_ptype;
	char          * pk_data;
	int				pk_datasize;

	char   		  * buf;
	char          * ptr;
	const char    * end;

	char          * bookmarks[MAX_BOOKMARKS];
	int             bidx;

	unsigned int    nTmpValue;
	void          * key;
}cert_cxml_handler_t;

static void bookmark_position(cert_cxml_handler_t * const h, const cxml_tag_t * tag)
{
	if (h->bidx >= MAX_BOOKMARKS){
		fprintf(stderr, "FATAL: Profile is tooooooo complicated!!!\n");
		exit(-1);
	}
	h->bookmarks[h->bidx] = h->ptr;
	h->bidx++;
	h->ptr++;
#ifdef DEBUG_BOOKMARKS
	printf("BOOKMARK 0x%08X (%s)\n", (unsigned int)h->ptr, tag->name);
#endif
}

static int apply_bookmark_size(cert_cxml_handler_t * const h, const cxml_tag_t * tag)
{
	int size, bcount;
	char * psize;
	if (h->bidx == 0){
		fprintf(stderr, "FATAL: Inconsistent bookmarks!!!\n");
		exit(-1);
	}
	psize = h->bookmarks[--h->bidx];
	size = h->ptr - psize - 1;
#ifdef DEBUG_BOOKMARKS
	printf("APPLY    0x%08X [%d] (%s)\n", (unsigned int)h->ptr, size, tag->name);
#endif
	bcount = cintx_bytecount(size);
	if (bcount == 1){
		*(unsigned char*)psize = size;
		size = 0;
	}
	else{
		memmove(psize + bcount, psize + 1, h->ptr - psize - 1);
		h->ptr += bcount - 1;
		size = cintx_write(size, &psize, psize + bcount, NULL);
	}
	return size; // size is overridden to be 0 or -1
}

static int attribute_public_key_tag (cxml_handler_t* const h, cxml_tag_t * const tag);
static int attribute_eccpoint_tag   (cxml_handler_t* const h, cxml_tag_t * const tag);
static int attribute_eccpoint_text  (cxml_handler_t* const h, char * const text, int length);
static int attribute_assurance_tag  (cxml_handler_t* const h, cxml_tag_t * const tag);
static int attribute_aid_tag        (cxml_handler_t* const h, cxml_tag_t * const tag);
static int attribute_ssp_tag        (cxml_handler_t* const h, cxml_tag_t * const tag);
static int attribute_ssp_text       (cxml_handler_t* const h, char * const text, int length);

static const cxml_taghandler_t h_publickey[] = {
	{ "eccpoint",  attribute_eccpoint_tag, attribute_eccpoint_text, NULL },
	{ "ecc-point", attribute_eccpoint_tag, attribute_eccpoint_text, NULL },
	{ "ecc_point", attribute_eccpoint_tag, attribute_eccpoint_text, NULL },
	{ NULL }
};

static const cxml_taghandler_t h_attribute[] = {
	{ "public-key", attribute_public_key_tag, NULL, h_publickey },
	{ "public_key", attribute_public_key_tag, NULL, h_publickey },
	{ "publickey",  attribute_public_key_tag, NULL, h_publickey },
	{ "eccpoint",   attribute_eccpoint_tag, attribute_eccpoint_text, NULL },
	{ "ecc-point",  attribute_eccpoint_tag, attribute_eccpoint_text, NULL },
	{ "ecc_point",  attribute_eccpoint_tag, attribute_eccpoint_text, NULL },
	{ "assurance",  attribute_assurance_tag, NULL, NULL },
146
147
148
	{ "aid", attribute_aid_tag, NULL, NULL },
	{ "ssp", attribute_ssp_tag, attribute_ssp_text, NULL },
	{ NULL }
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
};

static int subject_attribute_tag (cxml_handler_t* const h, cxml_tag_t * const tag);
static const cxml_taghandler_t h_subject[] = {
    {"attribute",  subject_attribute_tag,  NULL,  h_attribute},
    {NULL}
};

static int location_tag (cxml_handler_t* const h, cxml_tag_t * const tag);
static const cxml_taghandler_t h_location_list [] = {
    {"location",   location_tag,   NULL, NULL },
    {NULL}
};

static int region_none_tag (cxml_handler_t* const h, cxml_tag_t * const tag);
static int region_circle_tag (cxml_handler_t* const h, cxml_tag_t * const tag);
static int region_rectangle_tag (cxml_handler_t* const h, cxml_tag_t * const tag);
static int region_polygon_tag (cxml_handler_t* const h, cxml_tag_t * const tag);
filatov's avatar
filatov committed
167
168
169
static int region_id_tag(cxml_handler_t* const h, cxml_tag_t * const tag);
static int region_region_tag(cxml_handler_t* const h, cxml_tag_t * const tag);
static int region_region_text(cxml_handler_t* const h, char * const text, int length);
170
static const cxml_taghandler_t h_restriction[] = {
filatov's avatar
filatov committed
171
172
173
174
175
176
    {"region",     region_region_tag,    region_region_text, NULL },
    {"none",       region_none_tag,      NULL,               NULL },
    {"circle",     region_circle_tag,    NULL,               NULL },
    {"rectangle",  region_rectangle_tag, NULL,               h_location_list },
    {"polygon",    region_polygon_tag,   NULL,               h_location_list },
    {"id",         region_id_tag,        NULL,               NULL },
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
    {NULL}
};

static int validity_restriction_tag (cxml_handler_t* const h, cxml_tag_t * const tag);
static const cxml_taghandler_t h_validity[] = {
    {"restriction",  validity_restriction_tag,    NULL, h_restriction },
    {NULL}
};
	
static int certificate_version_tag (cxml_handler_t* const h, cxml_tag_t * const tag);
static int certificate_version_text(cxml_handler_t* const h, char * const text, int length);
static int certificate_signer_tag (cxml_handler_t* const h, cxml_tag_t * const tag);
static int certificate_signer_text(cxml_handler_t* const h, char * const text, int length);
static int certificate_subject_tag (cxml_handler_t* const h, cxml_tag_t * const tag);
static int certificate_validity_tag (cxml_handler_t* const h, cxml_tag_t * const tag);
static int certificate_signature_tag (cxml_handler_t* const h, cxml_tag_t * const tag);
static const cxml_taghandler_t h_certificate[] = {
    {"version",   certificate_version_tag, certificate_version_text, NULL },
    {"signer",    certificate_signer_tag,  certificate_signer_text,  NULL },
    {"subject",   certificate_subject_tag, NULL,  h_subject },
    {"validity",  certificate_validity_tag, NULL,  h_validity },
    {"signature", certificate_signature_tag, NULL,  h_validity },
    {NULL}
};

static int root_certificate_tag (cxml_handler_t* const h, cxml_tag_t * const tag);
static const cxml_taghandler_t h_root[] = {
    {"certificate", root_certificate_tag, NULL, h_certificate },
    {NULL}
};

static int  _Begin_Tag(cxml_handler_t* const h, cxml_tag_t * const tag);
static int  _End_Tag(cxml_handler_t* const h, cxml_tag_t * const tag);
static int  _Text(cxml_handler_t* const h, char * const text, int length);


static cxml_handler_class Class = {
    sizeof(cert_cxml_handler_t),
    NULL, NULL,
    _Begin_Tag, _End_Tag,
    _Text
};

#define STR2ENUM(N,V) _str_2_enum(N, sizeof(N)/sizeof(N[0]), V)

static int _str_2_enum(const char ** values, size_t size, const char * v)
{
224
	while (*v && cisspace(*v))v++;
225
226
227
228
229
230
231
	if (*v){
		size_t i;
		for (i = 0; i<size; i++){
			if (values[i] && 0 == strcmp(values[i], v)) {
				return i;
			}
		}
232
		if (cisdigit(*v)){
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
			return strtoul(v, NULL, 0);
		}
	}
	return -1;
}

#ifdef DEBUG_DATA
static void print_x(FILE * f, const char * ptr, int len)
{
	const unsigned char * e = (const unsigned char *)(ptr + len);
	for (; ptr < e; ptr++){
		unsigned char c = *ptr;
		fprintf(f, "%02X", c);
	}
}
#endif

static unsigned int _convert_time(const char * v);

static const char *_outPath = ".";
static const char *_searchPath = NULL;
static const char *_certName = NULL;
static       char *_profileName = NULL;
static const char *_signerName = NULL;
static unsigned int _defaultTime = 0;
static ecc_format   _outFormat = 0;
static const char * _verificationKey = NULL;
static const char * _decriptionKey   = NULL;
static const char * _keyPath = NULL;
static int          _reuseKeys = 0;
263
static int          _force = 0;
264
265
266
267

static long         _refLat = 0;
static long         _refLon = 0;

268
269
static const long double _latTMDPerMetter = 180.0 / M_PI / 0.6378;
static long double       _lonTMDPerMetter = 180.0 / M_PI / 0.6378;
270
271
static const char * _cfgFile = NULL;

272
273
274
275
276
277
278
279
280
281
282
283
static void _setup_default_time()
{
	time_t t;
	struct tm * ptm;
	struct tm   tm = {0};
	memset(&tm, 0, sizeof(tm));
	time(&t);
	ptm = gmtime(&t);
	tm.tm_mday = 1;
	tm.tm_year = ptm->tm_year;
	_defaultTime = mkitstime32(&tm);
}
284
285
286
287
288
289
290
291
292
293
294
295

static int _time_option(const copt_t * opt, const char * option, const copt_value_t * value)
{
	_defaultTime = _convert_time(value->v_str);
	return (_defaultTime == (unsigned int)-1) ? -1 : 0;
}

static int _refPoint_option(const copt_t * opt, const char * option, const copt_value_t * value)
{
	char * e;
	long double lat, lon;
	lat = strtold(value->v_str, &e);
filatov's avatar
filatov committed
296
	if (*e == ':' || *e == ','){
297
298
299
300
301
302
		lon = strtold(e + 1, &e);
		if (*e == 0){
			if (lat <= 90.0 &&  lat >= -90.0) lat *= 10000000.0; // degree
			_refLat = (int32_t)floorl(lat);
			if (lon <= 180.0 &&  lon >= -180.0) lon *= 10000000.0; // degree
			_refLon = (int32_t)floorl(lon);
303
			_lonTMDPerMetter = 180.0 / M_PI / 0.6378 / cos((lat/10000000.0) * M_PI / 180.0);
304
305
306
307
308
309
			return 0;
		}
	}
	return -1;
}

310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
typedef struct macro_item macro_item;
struct macro_item {
	cring_t _ring;
	const char* name;
	const char* value;
};
static macro_item _default_macro[] = {
	{ { NULL, NULL }, "CAM", "36" },
	{ { NULL, NULL }, "DENM", "37" },
	{ { NULL, NULL }, "GENERIC", "38" },
	{ { NULL, NULL }, "TLM", "137" },
	{ { NULL, NULL }, "SPAT", "137" },
	{ { NULL, NULL }, "RLT", "138" },
	{ { NULL, NULL }, "MAP", "138" },
	{ { NULL, NULL }, "MAP", "138" },
	{ { NULL, NULL }, "IVI", "139" },
	{ { NULL, NULL }, "TLC", "140" },
	{ { NULL, NULL }, "GN-MGMT", "141" }
};

static cring_t _macro = { &_macro, &_macro };

static int _addMacro_option(const copt_t * opt, const char * option, const copt_value_t * value)
{
	macro_item * m;
	const char * n = value->v_str;
	char * v = strchr(n, ':');
	if (v){
		*(v++) = 0;
		if (0 == *v) v = NULL;
	}
	for (m = cring_first_cast(_macro, macro_item);
		&m->_ring != &_macro && !cstrequal(m->name, n);
		m = cring_next_cast(m, macro_item));
	if (&m->_ring == &_macro){
		m = cnew(macro_item);
		cring_init(&m->_ring);
		cring_enqueue(&_macro, &m->_ring);
		m->name = n;
	}
	m->value = v;
	return 0;
}

static const char * macro_lookup(const char* n)
{
	macro_item * m;
	for (m = cring_first_cast(_macro, macro_item);
		&m->_ring != &_macro;
		m = cring_next_cast(m, macro_item)) {
		if (cstrequal(m->name, n)){
			return m->value;
		}
	}
	return NULL;
}

367
368
369
370
371
372
373
374
375
376
377
static const char * _o_formats[] = {
	"bin", "hex", "pem", NULL
};

static copt_t options [] = {
	{ "h?", "help", COPT_HELP, NULL,                 "Print this help page" },
	{ "C", "config", COPT_CFGFILE, (void*)&_cfgFile, "Config file path [no cfg file]" },
	{ "o", "out", COPT_STR, (void*)&_outPath, "Output path [current dir by default]" },
	{ "O", "format", COPT_STRENUM, (void*)_o_formats, "Output format (bin|hex|pem)[binary by default]" },
	{ "S", "certs", COPT_STR, (void*)&_searchPath, "Certificates search path [Output path by default]" },
	{ "K", "keys",  COPT_STR,  (void*)&_keyPath,    "Private key storage path [Output path by default]" },
378
379
	{ "R", "reuse", COPT_BOOL, (void*)&_reuseKeys, "Reuse existing key pair [regenerate by default]" },
	{ "f", "force", COPT_BOOL, (void*)&_force, "Force regenerate existing certificate and keys" },
380
381
382
383
384
385
	{ "n", "name", COPT_STR, (void*)&_certName, "Certificate name (take from profile by default)" },
	{ "v", "vkey", COPT_STR, (void*)&_verificationKey, "Verification public key (generate key pair by default)" },
	{ "e", "ekey", COPT_STR, (void*)&_decriptionKey, "Decription public key (generate key pair if neccessary)" },
	{ "s", "signer", COPT_STR, (void*)&_signerName, "Signer certificate name [take from profile by default]" },
	{ "t", "reftime",     COPT_STR | COPT_CALLBACK, (void*)&_time_option, "Reference UTC time point (YYY-DD-MM) [current date]" },
	{ "l", "reflocation", COPT_STR | COPT_CALLBACK, (void*)&_refPoint_option, "Reference location in form <lat>:<lon> [0.0:0.0]" },
386
	{ "m", "macro", COPT_STR | COPT_CALLBACK, (void*)&_addMacro_option, "Add macro in form of name:value to process AID, SSP, etc." },
387
388
389
390
391
392
393
394
395
396
397
398
	{ NULL, NULL,     COPT_END,  NULL, NULL }
};

int main(int argc, char ** argv)
{
	FILE *f;
	int rc;

	cert_cxml_handler_t * h = cxml_st_handler_new(&Class, h_root);
	h->vr_type = -1;
	h->sa_type = -1;
	
399
400
	// set default time to the begining of this year
	_setup_default_time();
401
402
403
404
405
406

	// init default macroses
	for (rc = 0; rc < sizeof(_default_macro) / sizeof(_default_macro[0]); rc++){
		cring_enqueue(&_macro, &_default_macro[rc]._ring);
	}

407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
	argc = coptions(argc, argv, COPT_HELP_NOVALUES , options);

    if(argc < 2){
		if(argc<0 && (0-argc)<((sizeof(options)/sizeof(options[0]))-1)){
			printf("Unknown option %s\n", argv[0-argc]);
		}
		const char * a = strrchr(argv[0], '/');
		if (a == NULL) a = argv[0];
		coptions_help(stdout, a, COPT_HELP_NOVALUES, options, "<profile> [signer]");
		return -1;
    }

	if (_searchPath == NULL) _searchPath = _outPath;
	if (_keyPath == NULL)    _keyPath    = _outPath;
	_outFormat = copts_enum_value(options, 3, _o_formats);
	if (_defaultTime == 0){
		//set it to begining of this year
		time_t t = time(NULL);
		struct tm tm;
		struct tm * ptm = gmtime(&t);
		memcpy(&tm, ptm, sizeof(tm));
		tm.tm_hour = tm.tm_min = tm.tm_sec = 0;
		tm.tm_mday = 1; tm.tm_mon = 0;
		_defaultTime = mkitstime32(&tm);
	}

	if(argc > 2){
		// set signer certificate file name
		_signerName = argv[2];
	}

    f = fopen(argv[1], "rb");
	if(f == NULL){
		fprintf(stderr, "%s: Certificate profile not found\n", argv[1]);
		return -1;
	}else{
		
		if(ecc_api_init()){
			return -1;
		}

		_profileName = cstrdup(cstrlastpathelement(argv[1]));
		if(_profileName){
			char * p = strrchr(_profileName, '.');
			if(p) *p = 0;
		}

		rc = cxml_handler_parse_stream(&h->h, f);
		if (rc == -1){
			fprintf(stderr, "%s Profile parsing error\n", argv[1]);
			return -1;
		}
		fclose(f);

		ecc_api_done();
	}
	return 0;
}

static int root_certificate_tag (cxml_handler_t* const _h, cxml_tag_t * const tag)
{
	cert_cxml_handler_t * h = (cert_cxml_handler_t *)_h;
	if (cxml_tag_is_open(tag)){
		if(_certName == NULL){
			_certName = cxml_tag_attr_value(tag, "name");
			if(_certName == NULL){
				_certName = _profileName;
			}
filatov's avatar
filatov committed
475
476
477
			else if (!cstrequal(_certName, _profileName)){
				fprintf(stderr, "WARNING: %s.xml: profile name differs from certificate name '%s'\n", _profileName, _certName);
			}
478
479
480
		}
		h->ptr = h->buf = malloc(4096);
		h->end = h->buf + 4096;
481
		if (!_force && cxml_tag_attr_boolean(tag, "keep-existing")){
482
483
484
485
486
487
488
489
490
491
492
493
			FILE * f;
			char * path = h->ptr;
			cvstrncpy(path, h->end - path, _outPath, "/", _certName, ".crt", NULL);
			f = fopen(path, "r+b");
			if (f){
				fclose(f);
				free(h->buf);
				return CXML_RETURN_STOP;
			}
		}
	}else{
		FILE * f;
494
495
496
		char * path;
		path = h->ptr;
		cvstrncpy(path, h->end-path, _outPath, "/", _certName, ".crt", NULL);
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
		f = fopen(path, "wb");
		if (!f){
			fprintf(stderr, "ERROR: Certificate write failed to '%s'\n", path);
		}else{
			if (_outFormat == 0){ 
				fwrite(h->buf, 1, h->ptr - h->buf, f);
			}else{ // hex or pem format
				const unsigned char * p = (const unsigned char *)h->buf;
				for (; p < (const unsigned char *)h->ptr; p++){
					fprintf(f, "%02X", *p);
				}
			}
			fclose(f);
		}
		if (h->verificationKey){
			if (_verificationKey == NULL && _reuseKeys == 0){
				cvstrncpy(path, h->end - path, _keyPath, "/", _certName, ".vkey", NULL);
				ecc_api_key_private_save(h->verificationKey, path, _outFormat);
				cvstrncpy(path, h->end - path, _keyPath, "/", _certName, ".vpkey", NULL);
				ecc_api_key_public_save(h->verificationKey, path, _outFormat);
			}
		}
		if (h->encryptionKey){
			if (_decriptionKey == NULL && _reuseKeys == 0){
				cvstrncpy(path, h->end - path, _keyPath, "/", _certName, ".ekey", NULL);
				ecc_api_key_private_save(h->encryptionKey, path, _outFormat);
				cvstrncpy(path, h->end - path, _keyPath, "/", _certName, ".epkey", NULL);
				ecc_api_key_public_save(h->encryptionKey, path, _outFormat);
			}
		}
		free(h->buf);
	}
	return 0;
}

static int certificate_version_tag (cxml_handler_t* const _h, cxml_tag_t * const tag)
{
	int rc = 0;
	cert_cxml_handler_t * h = (cert_cxml_handler_t *)_h;
	if (cxml_tag_is_open(tag)){
		h->nTmpValue = 2;
		const char * v = cxml_tag_attr_value(tag, "version");
		if(v == NULL)v = cxml_tag_attr_value(tag, "value");
		if(v){
541
			while(cisspace(*v))v++;
542
543
544
545
546
547
548
549
550
551
552
553
554
			h->nTmpValue = strtoul(v, NULL, 0);
		}
	}else{
		cint8_write(h->nTmpValue, &h->ptr, h->end, &rc);
	}
	return rc;
}

static int certificate_version_text(cxml_handler_t* const _h, char * const text, int length)
{
	cert_cxml_handler_t * h = (cert_cxml_handler_t *)_h;
	if(text){
		const char * p = text;
555
		while(*p && cisspace(*p))p++;
556
557
558
559
560
561
562
563
564
		if(*p) h->nTmpValue = strtoul(p, NULL, 0);
	}
	return 0;
}

static const char * _signer_types [] = {
	"self",
	"digest",
	"certificate",
filatov's avatar
filatov committed
565
566
	"certificate_chain",
	"other_digest",
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
	"other",
};

static size_t load_certificate(const char * path, char * ptr, const char * e)
{
	FILE *f;
	size_t size;
	char * cert = ptr;

	f = fopen(path, "rb");
	if (f == NULL){
		perror(path);
		return -1;
	}
	fseek(f, 0, SEEK_END);
	size = ftell(f);
	fseek(f, 0, SEEK_SET);
	if (size < 67){
		fprintf(stderr, "%s: File too small\n", path);
		return -1;
	}
588
	if (size > (size_t)(e - cert)){
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
		fprintf(stderr, "%s: no enough space\n", path);
		return -1;
	}
	if (size != fread(cert, 1, size, f)){
		perror(path);
		return -1;
	}
	fclose(f);
	if (cert[0] != 2) {
		char * c = cstr_hex2bin(cert, size, cert, size);
		if (c){
			size = c - cert;
		}
	}
	return size;
}

filatov's avatar
filatov committed
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
static const char * _pk_algorithms[] = {
	[0] = "ecdsa_nistp256_with_sha256",
	[1] = "ecies_nistp256",
};

static const char * _sym_algorithms[] = {
	[0] = "aes_128_ccm",
};
static const char * _point_types[] = {
	[0] = "x_coordinate_only",
	[1] = "compressed",
	[2] = "compressed_y0",
	[3] = "compressed_y1",
	[4] = "uncompressed"
};

622
623
624
static int certificate_signer_tag (cxml_handler_t* const _h, cxml_tag_t * const tag)
{
	int rc = 0;
filatov's avatar
filatov committed
625
	const char * v;
626
627
628
	// write signer info
	cert_cxml_handler_t * h = (cert_cxml_handler_t *)_h;
	if (cxml_tag_is_open(tag)){
filatov's avatar
filatov committed
629
630
		h->signer_type = si_digest; // digest by default
		v = cxml_tag_attr_value(tag, "type");
631
632
		if(v){
			h->signer_type = STR2ENUM(_signer_types, v);
filatov's avatar
filatov committed
633
			if (h->signer_type <0){
634
635
636
637
638
639
				fprintf(stderr, "%s: Unknown signer type\n", v);
				return -1;
			}
		}
		cint8_write(h->signer_type, &h->ptr, h->end, &rc);

filatov's avatar
filatov committed
640
		if (h->signer_type > si_self){
641
642
643
644
			if (_signerName){
				h->signer = _signerName;
			}
			else{
filatov's avatar
filatov committed
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
				if (h->signer_type == si_digest || h->signer_type == si_digest_with_other_algorithm){
					h->signer_digest = cxml_tag_attr_value(tag, "digest");
					if (h->signer_type == si_digest_with_other_algorithm){
						int alg;
						v = cxml_tag_attr_value(tag, "algorithm");
						if (v == NULL) {
							fprintf(stderr, "Signing algorithm shall be provided\n");
							return -1;
						}
						alg = STR2ENUM(_pk_algorithms, v);
						if (alg < 0){
							fprintf(stderr, "%s: Unknown public key algorithm\n", v);
							return -1;
						}
						cint8_write(alg, &h->ptr, h->end, &rc);
					}
				}
				if (h->signer_digest == NULL){
					v = cxml_tag_attr_value(tag, "name");
					if (v == NULL){
						fprintf(stderr, "%s: Signer name or digest shall be provided\n", v);
						return -1;
					}
					h->signer = v;
669
				}
filatov's avatar
filatov committed
670
671
672
673
			}
			if (h->signer_type == si_certificate_chain ||
				h->signer_type >= si_other){
				bookmark_position(h, tag);
674
675
676
677
			}
		}
	}else{
		// write signer info
filatov's avatar
filatov committed
678
679
680
681
682
683
684
685
686
		if (h->signer_type > si_self){
			if (h->signer_type < si_other) {
				if (h->signer_digest){
					int len = strlen(h->signer_digest);
					v = cstr_hex2bin(h->ptr, h->end - h->ptr, h->signer_digest, len);
					if (v == NULL){
						fprintf(stderr, "%s: no more space to write digest of size %d bytes\n", v, len);
						return -1;
					}
687
688
				}
				else{
filatov's avatar
filatov committed
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
					char * path, *cname;
					int plen;
					cname = (char*)h->signer;
					while (*cname){
						char * se = strchr(cname, ' ');
						if (se){
							*se = 0;
							while (cisspace(*se))se++;
						}
						else se = cstrend(cname);
						h->signer = cname;

						// load signer certificate
						plen = strlen(_searchPath) + (se - cname);
						path = malloc(plen + 16);
						cvstrncpy(path, plen + 16, _searchPath, "/", cname, ".crt", NULL);
						size_t size = load_certificate(path, h->ptr, h->end);
						if (size < 0){
							fprintf(stderr, "%s: signer certificate not found or error\n", h->signer);
							rc = -1;
						}
						else{
							// digests
							if (h->signer_type == si_digest || h->signer_type == si_digest_with_other_algorithm){
								char hash[sha256_hash_size];
								// change eccpoint type of the signature to x_coordinate_only(0) 
								// to follow canonical encoding
								h->ptr[size - 65] = 0;
								sha256_calculate(hash, h->ptr, size);
718
#ifdef DEBUG_DATA
filatov's avatar
filatov committed
719
720
721
722
723
724
								fprintf(stderr, "HASH (%s): ", h->signer);
								print_x(stderr, hash, sha256_hash_size);
								fprintf(stderr, "\n");
								fprintf(stderr, "DIGEST (%s): ", h->signer);
								print_x(stderr, &hash[sha256_hash_size - 8], 8);
								fprintf(stderr, "\n");
725
#endif
filatov's avatar
filatov committed
726
727
728
729
730
731
732
733
734
735
736
737
								cbuf_write(hash + sha256_hash_size - 8, 8, &h->ptr, h->end, &rc);
							}
							else {// certificate or chain
								h->ptr += size;
								if (h->signer_type == si_certificate_chain){
									cname = se;
									continue;
								}
							}
						}
						// continue only if certificate chain
						break;
738
					}
filatov's avatar
filatov committed
739
					free(path);
740
				}
filatov's avatar
filatov committed
741
742
743
			}
			if (h->signer_type == si_certificate_chain || h->signer_type >= si_other) {
				apply_bookmark_size(h, tag);
744
745
746
747
748
749
			}
		}
	}
	return rc;
}

filatov's avatar
filatov committed
750
751
752
753
754
755
756
757
758
static int certificate_signer_text(cxml_handler_t* const _h, char * const text, int length)
{
	int rc = 0;
	cert_cxml_handler_t * h = (cert_cxml_handler_t *)_h;
	if (h->signer_type >= si_other) {
		cbuf_write(text, length, &h->ptr, h->end, &rc);
	}
	return rc;
}
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018

static const char * _subject_type [] = {
	"EC",	"AT",	"AA",	"EA",	"ROOT",	"CRL"
};

typedef struct list_pointer_t
{
	unsigned char * ptr;
	unsigned char cnt;
}list_pointer_t;

static int certificate_subject_tag (cxml_handler_t* const _h, cxml_tag_t * const tag)
{
	int rc = 0;
	cert_cxml_handler_t * h = (cert_cxml_handler_t *)_h;
	// write signer info
	if (cxml_tag_is_open(tag)){
		int len;
		const char * v = cxml_tag_attr_value(tag, "type");
		if(v == NULL){
			fprintf(stderr, "Subject type must be set in Certificate profile\n");
			return -1;
		}
		h->subject_type = STR2ENUM(_subject_type, v);
		if(h->subject_type < 0) {
			fprintf(stderr, "%s: Unknown subject type\n", v);
			return -1;
		}
		cint8_write(h->subject_type, &h->ptr, h->end, &rc);
		v  = cxml_tag_attr_value(tag, "name");
		len = cstrlen(v);
		if(0 == cintx_write(len, &h->ptr, h->end, &rc) && len > 0){
			cbuf_write(v, len, &h->ptr, h->end, &rc);
		}
		bookmark_position(h, tag);
	}else{
		apply_bookmark_size(h, tag);
	}
	return rc;
}

static const char * _subject_attribute_types[] = {
	[0]  = "verification_key",
	[1]  = "encryption_key",
	[2]  = "assurance_level",
	[3]  = "reconstruction_value",
	[32] = "its_aid_list",
	[33] = "its_aid_ssp_list"
};

static int subject_attribute_tag (cxml_handler_t* const _h, cxml_tag_t * const tag)
{
	int rc = 0;
	cert_cxml_handler_t * h = (cert_cxml_handler_t *)_h;
	if (cxml_tag_is_open(tag)){
		const char * v = cxml_tag_attr_value(tag, "type");
		int atype;
		if(v == NULL){
			fprintf(stderr, "Attribute type must be set\n");
			return -1;
		}
		atype = STR2ENUM(_subject_attribute_types, v);
		if(atype < 0) {
			fprintf(stderr, "%s: Unknown attribute type\n", v);
			return -1;
		}
		cint8_write(atype, &h->ptr, h->end, &rc);
		h->sa_type = atype;

		const char * keyPath = _verificationKey;
		switch (h->sa_type){
		case  1: // encryption_key
			keyPath = _decriptionKey;
		case  0: //verificationKey
			if (keyPath){
				h->key = ecc_api_key_public_load(keyPath, 0);
				if (h->key == NULL){
					fprintf(stderr, "%s: Can't load public key\n", keyPath);
					return -1;
				}
			}
			else if (_reuseKeys){
				cvstrncpy(h->ptr, h->end - h->ptr, _keyPath, "/", _certName,
					".", h->sa_type ? "e" : "v", "key", NULL);
				h->key = ecc_api_key_private_load(h->ptr, 0);
				if (h->key == NULL){
					_reuseKeys = 0;
				}
			}
			break;
		case 32: //its_aid_list
		case 33: //its_aid_ssp_list
			bookmark_position(h, tag);
			break;
		};
	}else{
		switch(h->sa_type){
		case  0: // verification_key
			h->verificationKey = h->key;
			h->key = NULL;
			break;
		case  1: // encryption_key
			h->encryptionKey = h->key;
			h->key = NULL;
			break;
		case 32: //its_aid_list
		case 33: //its_aid_ssp_list
			apply_bookmark_size(h, tag);
			break;
		}
		if(h->key){
			ecc_api_key_free(h->key);
		}
		h->sa_type = -1;
	}
	return rc;
}

static int attribute_public_key_tag(cxml_handler_t* const _h, cxml_tag_t * const tag)
{
	int rc = 0;
	cert_cxml_handler_t * h = (cert_cxml_handler_t *)_h;
	if (cxml_tag_is_open(tag)){
		int alg = 0, sym_alg = 0;
		const char * v = cxml_tag_attr_value(tag, "algorithm");
		if (v) {
			alg = STR2ENUM(_pk_algorithms, v);
			if (alg < 0){
				fprintf(stderr, "%s: Unknown public key algorithm\n", v);
				return -1;
			}
		}
		cint8_write(alg, &h->ptr, h->end, &rc);

		v = cxml_tag_attr_value(tag, "point-type");
		if (v){
			h->pk_ptype = STR2ENUM(_point_types, v);
			if (h->pk_ptype < 0){
				fprintf(stderr, "%s: Unknown point type\n", v);
				return -1;
			}
			if (h->pk_ptype == 1) h->pk_ptype = 2;
		}

		switch (alg){
		case 0:
			break;
		case 1:
			v = cxml_tag_attr_value(tag, "sym_alg");
			if (v){
				sym_alg = STR2ENUM(_sym_algorithms, v);
				if (sym_alg < 0){
					fprintf(stderr, "%s: Unknown symmetric algorithm\n", v);
					return -1;
				}
			}
			cint8_write(sym_alg, &h->ptr, h->end, &rc);
			break;
		default:
			bookmark_position(h, tag);
			break;
		}
		h->pk_alg = alg;
		h->pk_sym_alg = sym_alg;
	}
	else{
		if (h->pk_alg > 1){
			apply_bookmark_size(h, tag);
		}
		h->pk_alg = -1;
		h->pk_sym_alg = -1;
	}
	return rc;
}

static int attribute_eccpoint_tag   (cxml_handler_t* const _h, cxml_tag_t * const tag)
{
	int rc = 0;
	cert_cxml_handler_t * h = (cert_cxml_handler_t *)_h;
	int pointtype;
	if (cxml_tag_is_open(tag)){
		const char * v;
		pointtype = 0;
		v = cxml_tag_attr_value(tag, "type");
		if (v){
			pointtype = STR2ENUM(_point_types, v);
			if (pointtype < 0){
				fprintf(stderr, "%s: Unknown point type\n", v);
				return -1;
			}
			if (pointtype == 1) pointtype = 2;
		}
		h->pk_ptype = pointtype;
		h->pk_data = NULL;
		h->pk_datasize = 0;

	}
	else{
		void * key = h->key;
		pointtype = h->pk_ptype;
		// generate private and public key pair
		char x[32], y[32];
		if (key == NULL){
			if (h->pk_data){
				if (h->pk_datasize < 32 || (h->pk_datasize < 64 && pointtype == 4)){
					fprintf(stderr, "Insufficient size of public key\n");
					return -1;
				}
				key = ecc_api_key_public_set(h->pk_alg, pointtype, h->pk_data, h->pk_data + 32);
			}
			else{
				// generate PK
				if (h->pk_alg < 0 || h->pk_sym_alg < 0){
					fprintf(stderr, "Public key algorythm must be specified\n");
					return -1;
				}
				key = ecc_api_key_gen(h->pk_alg, h->pk_sym_alg);
			}
		}
		if (key){
			h->key = key;
			rc = ecc_api_key_public(key, &x[0], &y[0]);
			if (rc >= 0){
				if (pointtype == 2) pointtype |= (y[31] & 1);
				cint8_write(pointtype, &h->ptr, h->end, &rc);
				if (rc == 0)cbuf_write(&x[0], 32, &h->ptr, h->end, &rc);
				if (rc == 0 && pointtype == 4){
					cbuf_write(&y[0], 32, &h->ptr, h->end, &rc);
				}
			}
		}
		if (h->pk_data){
			free(h->pk_data);
			h->pk_data = NULL;
		}
	}
	return rc;
}

static int attribute_eccpoint_text(cxml_handler_t* const _h, char * const text, int length)
{
	cert_cxml_handler_t * h = (cert_cxml_handler_t *)_h;
	if (h->pk_data == NULL){
		h->pk_data = malloc(64);
		h->pk_datasize = 0;
	}
	char * e = cstr_hex2bin(h->pk_data + h->pk_datasize, 64 - h->pk_datasize, text, length);
	h->pk_datasize = e - h->pk_data;
	return 0;
}


static int attribute_assurance_tag  (cxml_handler_t* const _h, cxml_tag_t * const tag)
{
	int rc = 0;
	cert_cxml_handler_t * h = (cert_cxml_handler_t *)_h;
	if (cxml_tag_is_open(tag)){
		uint8_t assurance = 0;
		const char * v = cxml_tag_attr_value(tag, "level");
		if(v){
1019
			while(*v && cisspace(*v))v++;
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
			if(*v){
				long n = strtol(v, NULL, 0); 
				if(n<0 || n > 7){
					fprintf(stderr, "%s: Invalid assurance level\n", v);
					return -1;
				}
				assurance |= n<<5;
			}
		}
		v = cxml_tag_attr_value(tag, "confidence");
		if(v){
1031
			while(*v && cisspace(*v))v++;
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
			if(*v){
				long n = strtol(v, NULL, 0); 
				if(n<0 || n > 3){
					fprintf(stderr, "%s: Invalid assurance confidence\n", v);
					return -1;
				}
				assurance |= n;
			}
		}
		cint8_write(assurance, &h->ptr, h->end, &rc);
	}
	return rc;
}

1046
static int attribute_aid_tag(cxml_handler_t* const _h, cxml_tag_t * const tag)
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
{
	int rc = 0;
	cert_cxml_handler_t * h = (cert_cxml_handler_t *)_h;
	if(0 == (tag->type & CXML_TAG_OPEN)){
		const char * v = cxml_tag_attr_value(tag, "value");
		if(NULL == v)v = cxml_tag_attr_value(tag, "aid");
		if(NULL == v){
			fprintf(stderr, "WARNING: Value required for AID tag. Item was skiped.\n");
		}else{
			uint32_t n;
1057
			while(cisspace(*v))v++;
1058
1059
1060
1061
1062
1063
1064
1065
			if (!cisdigit(*v)){
				// look in the aid map
				const char * v1 = macro_lookup(v);
				if (!v1){
					fprintf(stderr, "ERROR: Invalid AID '%s'\n", v);
					return -1;
				}
				v = v1;
1066
			}
1067
1068
			n = strtoul(v, NULL, 0);
			cintx_write(n, &h->ptr, h->end, &rc);
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
		}
	}
	return rc;
}

static int attribute_ssp_tag        (cxml_handler_t* const _h, cxml_tag_t * const tag)
{
	int rc = 0;
	cert_cxml_handler_t * h = (cert_cxml_handler_t *)_h;
	if (cxml_tag_is_open(tag)){
		uint32_t n;
		const char * v = cxml_tag_attr_value(tag, "aid");
		if(NULL == v){
			fprintf(stderr, "ERROR: AID shall be supplied for SSP.\n");
			return -1;
		}
1085
		while(cisspace(*v))v++;
1086
1087
1088
1089
1090
1091
1092
1093
		if (!cisdigit(*v)){
			// look in the aid map
			const char * v1 = macro_lookup(v);
			if (!v1){
				fprintf(stderr, "ERROR: Invalid AID '%s' in SSP\n", v);
				return -1;
			}
			v = v1;
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
		}
		n = strtoul(v, NULL, 0);
		cintx_write(n, &h->ptr, h->end, &rc);
		bookmark_position(h, tag);
	}else{
		apply_bookmark_size(h, tag);
	}
	return rc;
}

static int attribute_ssp_text(cxml_handler_t* const _h, char * const text, int length)
{
	int rc=0;
1107
	if (text && length){
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
		cert_cxml_handler_t * h = (cert_cxml_handler_t *)_h;
		rc = cbuf_write(text, length, &h->ptr, h->end, NULL);
	}
	return rc;
}

static int certificate_validity_tag (cxml_handler_t* const _h, cxml_tag_t * const tag)
{
	int rc;
	cert_cxml_handler_t * h = (cert_cxml_handler_t *)_h;
	if (cxml_tag_is_open(tag)){
		bookmark_position(h, tag);
		rc = 0;
	}else{
		rc = apply_bookmark_size(h, tag);
	}
	return rc;
}

filatov's avatar
filatov committed
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
static unsigned int _convert_diff_time(const char * v)
{
	unsigned int ret = 0;
	const char * p = v;
	char * e;
	int mult = 1;
	switch (*p){
	case '-':
		mult = -1;
	case '+':
		p++;
	}

	for (;;){
		unsigned int n;
		n = strtoul(p, &e, 10);
		if (n == ULONG_MAX) break;
		if (cisalnum(*e)){
			switch (*e){
			case 'd': n *= 24;
			case 'h': n *= 60;
			case 'm': n *= 60;
			case 's': e++; break;
			default:
				fprintf(stderr, "%s: Unknown time modificator: '%c'\n", p, *e);
				return INT32_MIN;
			}
		}
		else{
			// consider n as days
			n *= 24 * 3600;
		}
		ret += n;
		if (cisdigit(*e)){
			p = e;
			continue;
		}
		break;
	}
	return ret * mult;
}

static unsigned int _convert_time2(const char * v, unsigned int baseTime)
1170
1171
1172
1173
1174
{
	unsigned int ret;
	char * e;
	struct tm tm;
	
1175
	// can be a difference from the base time point
filatov's avatar
filatov committed
1176
1177
	if (*v == '-' || *v == '+'){
		if (baseTime == 0){
1178
1179
1180
			fprintf(stderr, "Default time must be set\n");
			return 0;
		}
filatov's avatar
filatov committed
1181
1182
1183
1184
		ret = _convert_diff_time(v);
		if (ret == INT32_MIN)
			return 0;
		ret = baseTime + ret;
1185
1186
1187
1188
1189
1190
1191
	}
	else{
		// next try load as integer seconds since epoch
		ret = strtoul(v, &e, 0);
		if (ret == ULONG_MAX || *e){
			ret = 0;
			memset(&tm, 0, sizeof(tm));
filatov's avatar
filatov committed
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
			// check predefined values
			if ((e = cstrisprefix(v, "today"))){
				time_t t;
				struct tm * ptm;
				time(&t); ptm = gmtime(&t);
				tm.tm_year = ptm->tm_year; tm.tm_mon = ptm->tm_mon; tm.tm_mday = ptm->tm_mday;
			}
			else if ((e = cstrisprefix(v, "ybegin"))){
				time_t t;
				struct tm * ptm;
				time(&t); ptm = gmtime(&t);
				tm.tm_year = ptm->tm_year; tm.tm_mon = 0; tm.tm_mday = 1;
			}
			else if ((e = cstrisprefix(v, "yend"))){
				time_t t;
				struct tm * ptm;
				time(&t); ptm = gmtime(&t);
				tm.tm_year = ptm->tm_year+1; tm.tm_mon = 0; tm.tm_mday = 1;
			}
			//next try to convert ISO text representation
			else if (3 == sscanf(v, "%d-%d-%d", &tm.tm_year, &tm.tm_mon, &tm.tm_mday)){
1213
				tm.tm_mon--; // STARTED FROM 0
filatov's avatar
filatov committed
1214
				if (tm.tm_year > 500)
1215
					tm.tm_year -= 1900;
filatov's avatar
filatov committed
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
				e = (char*)v; // to prevent next check for '-/+'
			}
			else{
				fprintf(stderr, "%s: Date format specification error. Use YYY-MM-DD or today+/-NNNd\n", v);
				return 0;
			}
			ret = mkitstime32(&tm);
			if (ret == (time_t)-1) {
				fprintf(stderr, "%s: Date format specification error. Use YYY-MM-DD or today+/-NNNd\n", v);
				ret = 0;
			}
			if (*e == '-' || *e == '+'){
				ret = _convert_time2(e, ret);
1229
1230
1231
1232
1233
1234
			}
		}
	}
	return ret;
}

filatov's avatar
filatov committed
1235
1236
1237
1238
1239
static unsigned int _convert_time(const char * v)
{
	return _convert_time2(v, _defaultTime);
}

1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
static int validity_restriction_tag (cxml_handler_t* const _h, cxml_tag_t * const tag)
{
	int rc = 0;
	cert_cxml_handler_t * h = (cert_cxml_handler_t *)_h;
	if (cxml_tag_is_open(tag)){
		int vr_type = -1;
		int nTime;
		const char * v = cxml_tag_attr_value(tag, "type");
		const char *start, *end, *duration;
		if(NULL == v){
			fprintf(stderr, "ERROR: Restriction shall have a type.\n");
			return -1;
		}
		
1254
		while(cisspace(*v))v++;
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
		if(0 == strcmp("time", v)){
			start    = cxml_tag_attr_value(tag, "start");
			end      = cxml_tag_attr_value(tag, "end");
			duration = cxml_tag_attr_value(tag, "duration");
			if(end && *end){
				vr_type = (start && *start) ? 1 : 0;
			}else if(start && *start && duration && *duration){
				vr_type = 2;
			}else{
				fprintf(stderr, "ERROR: Either end or start and duration shall be specified for time restriction.\n");
				return -1;
			}
		}else if(0 == strcmp("region", v)){
			vr_type = 3;
1269
		}else if(cisdigit(*v)){
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
			vr_type=strtoul(v, NULL,0);
		}else{
			fprintf(stderr, "%s: Unknown validity restriction type.\n", v);
			return -1;
		}
		h->vr_type = vr_type;
		cint8_write(vr_type, &h->ptr, h->end, &rc);
		
		// save time restrictions
		switch(vr_type){
		case 1: /* time_start_and_end */
			nTime = _convert_time(start);
			cint32_write(nTime, &h->ptr, h->end, &rc);
		case 0: /* time_end */
			nTime = _convert_time(end);
			cint32_write(nTime, &h->ptr, h->end, &rc);
			break;
		case 2: /* time_start_and_duration */
			nTime = _convert_time(start);
			cint32_write(nTime, &h->ptr, h->end, &rc);
filatov's avatar
filatov committed
1290
			nTime = _convert_diff_time(duration);
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
1309
1310
1311
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321
1322
1323
1324
1325
1326
			cint32_write(nTime, &h->ptr, h->end, &rc);
			break;
		case 3: /* region */
			break;
		default: // opaque
			bookmark_position(h, tag); // for opaque data
		}
	}else{
		if(h->vr_type > 3){
			apply_bookmark_size(h, tag);
		}
		h->vr_type = -1;
	}
	return 0;
}
static int region_none_tag (cxml_handler_t* const _h, cxml_tag_t * const tag)
{
	if (cxml_tag_is_open(tag)){
		cert_cxml_handler_t * h = (cert_cxml_handler_t *)_h;
		return cint8_write(0, &h->ptr, h->end, NULL);
	}
	return 0;
}

static int region_circle_tag (cxml_handler_t* const _h, cxml_tag_t * const tag)
{
	int rc = 0;
	cert_cxml_handler_t * h = (cert_cxml_handler_t *)_h;
	if (cxml_tag_is_open(tag)){
		//region type
		if(0 == cint8_write(1, &h->ptr, h->end, NULL)){
			//latitude and longitude
			rc = location_tag (_h, tag);
			if(0 == rc){
				//radius
				uint32_t n;
1327
				char * e;
1328
1329
1330
1331
1332
				const char * v    = cxml_tag_attr_value(tag, "radius");
				if(NULL == v){
					fprintf(stderr, "ERROR: radius shall be specified for circle.\n");
					return -1;
				}
1333
1334
1335
				n = strtoul(v, &e, 0);
				if( (e[0] == 'k' || e[0] == 'K') && (e[1] == 'm' || e[1] == 'M') )
					n *= 1000;
1336
1337
1338
1339
1340
1341
1342
1343
1344
1345
1346
1347
1348
1349
1350
1351
1352
1353
1354
1355
1356
1357
1358
1359
1360
1361
1362
1363
1364
1365
1366
1367
1368
1369
1370
1371
1372
1373
1374
1375
1376
1377
1378
1379
1380
1381
1382
				if(n > 0xFFFF){
					fprintf(stderr, "ERROR: %ul: radius is too big.\n", n);
					return -1;
				}
				cint16_write(n, &h->ptr, h->end, &rc);
			}
		}
	}
	return rc;
}

static int region_rectangle_tag (cxml_handler_t* const _h, cxml_tag_t * const tag)
{
	int rc;
	cert_cxml_handler_t * h = (cert_cxml_handler_t *)_h;
	if (cxml_tag_is_open(tag)){
		// region type
		rc = cint8_write(2, &h->ptr, h->end, NULL);
		if(0 == rc){
			bookmark_position(h, tag);
		}
	}else{
		rc = apply_bookmark_size(h, tag);
	}
	return rc;
}

static int region_polygon_tag (cxml_handler_t* const _h, cxml_tag_t * const tag)
{
	int rc;
	cert_cxml_handler_t * h = (cert_cxml_handler_t *)_h;
	if (cxml_tag_is_open(tag)){
		// region type
		rc = cint8_write(3, &h->ptr, h->end, NULL);
		if(0 == rc){
			bookmark_position(h, tag);
		}
	}else{
		rc = apply_bookmark_size(h, tag);
	}
	return rc;
}

static int location_tag (cxml_handler_t* const _h, cxml_tag_t * const tag)
{
	int rc = 0;
	if (cxml_tag_is_open(tag)){
filatov's avatar
filatov committed
1383
		int32_t lat, lon, absolute = 0;
1384
		long double d;
1385
		char * e;
1386
		cert_cxml_handler_t * h = (cert_cxml_handler_t *)_h;
filatov's avatar
filatov committed
1387
1388
1389
1390
1391
1392

		const char * v = cxml_tag_attr_value(tag, "mode");
		absolute = cstrequal(v, "absolute");
			
		v = cxml_tag_attr_value(tag, "latitude");
		int relative = 1;
1393
		if(v == NULL){
filatov's avatar
filatov committed
1394
			fprintf(stderr, "ERROR: Latitude must be specified for location.\n");
1395
1396
			return -1;
		}
1397
1398
1399
1400
1401
1402
1403
		e = NULL; d = strtold(v, &e);
		if(e[0] == 'm' || (e[0] == 'k' && e[1] == 'm')){
			if(e[0] == 'k') d*=1000.0;
			d = d * _latTMDPerMetter;
		}else{
			if (d <= 90.0 &&  d >= -90.0) d *= 10000000.0; // degree
		}
filatov's avatar
filatov committed
1404
1405
		if (!absolute) d += _refLat;
		lat = (int32_t)floorl(d);
1406
1407
1408
1409
1410
1411

		v    = cxml_tag_attr_value(tag, "longitude");
		if(v == NULL){
			fprintf(stderr, "ERROR: Longitude shall be specified for location.\n");
			return -1;
		}
1412
1413
1414
1415
1416
1417
1418
1419
		e = NULL; d = strtold(v, &e);
		if(e[0] == 'm' || (e[0] == 'k' && e[1] == 'm')){
			if(e[0] == 'k') d*=1000.0;
			// convert metters to degree
			d = d * _lonTMDPerMetter;
		}else{
			if (d <= 180.0 &&  d >= -180.0) d *= 10000000.0; // degree
		}
filatov's avatar
filatov committed
1420
1421
		if (!absolute) d += _refLon;
		lon = (int32_t)floorl(d);
1422
1423
1424
1425
1426
1427
1428
1429
1430
1431
1432
1433
1434
1435
1436
1437
1438
1439
1440
1441
1442
1443
1444
1445
1446
1447
1448
1449
1450
1451
1452
1453
1454
1455
1456
1457
1458
1459
1460
1461
1462
1463
1464

		cint32_write(lat, &h->ptr, h->end, &rc);
		cint32_write(lon, &h->ptr, h->end, &rc);
	}
	return rc;
}

static const char * _id_dictionaries[] = {
	"iso_3166_1",
	"un_stats",
};

static int region_id_tag (cxml_handler_t* const _h, cxml_tag_t * const tag)
{
	int rc = 0;
	cert_cxml_handler_t * h = (cert_cxml_handler_t *)_h;
	if (cxml_tag_is_open(tag)){
		int value = 0;
		unsigned int uvalue = 0;
		const char * v;

		// region type
		rc = cint8_write(4, &h->ptr, h->end, NULL);

		// region dictionary. use 0 by default
		v = cxml_tag_attr_value(tag, "dictionary");
		if(v == NULL)v = cxml_tag_attr_value(tag, "dict");
		if(v){
			value = STR2ENUM(_id_dictionaries, v);
			if(value<0){
				fprintf(stderr, "%s: Unknown dictionary type\n", v);
				return -1;
			}
		}
		if(cint8_write(value, &h->ptr, h->end, NULL)){
			return -1;
		}
			
		v = cxml_tag_attr_value(tag, "id");
		if(v == NULL){
			fprintf(stderr, "ERROR: Region identifier must be set\n");
			return -1;
		}
1465
		while(cisspace(*v))v++;
1466
1467
1468
1469
1470
1471
1472
1473
1474
1475
1476
1477
		uvalue = strtoul(v, NULL, 0);
		if(uvalue > 0xFFFF){
			fprintf(stderr, "%s: Invalid region identifier\n", v);
			return -1;
		}
		if(cint16_write(uvalue, &h->ptr, h->end, NULL)){
			return -1;
		}
			
		uvalue = 0;
		v = cxml_tag_attr_value(tag, "local");
		if(v){
1478
			while(cisspace(*v))v++;
1479
			uvalue = strtoul(v, NULL, 0);
1480
			if(!cisdigit(*v) || uvalue > 0xFFFF){
1481
1482
1483
1484
1485
1486
1487
1488
1489
1490
				fprintf(stderr, "%s: Invalid region identifier\n", v);
				return -1;
			}
		}
		cintx_write(uvalue, &h->ptr, h->end, &rc);
		if(rc) return -1;
	}
	return rc;
}

filatov's avatar
filatov committed
1491
1492
1493
1494
1495
1496
1497
1498
1499
1500
1501
1502
1503
1504
1505
1506
1507
1508
1509
1510
1511
1512
1513
1514
1515
1516
1517
1518
1519
1520
1521
1522
1523
1524
1525
1526
1527
1528
1529
1530
1531
1532
1533
1534
1535
1536
1537
1538
1539
1540
1541
1542
1543
1544
1545
1546
1547
1548
1549
1550
1551
static const char * _region_types[] = {
	[0] = "none",
	[1] = "circle",
	[2] = "rectangle",
	[3] = "polygon",
	[4] = "id"
};
static cxml_tag_f* _region_type_handlers[] = {
	[0] = region_none_tag,
	[1] = region_circle_tag,
	[2] = region_rectangle_tag,
	[3] = region_polygon_tag,
	[4] = region_id_tag
};

static int region_region_tag(cxml_handler_t* const _h, cxml_tag_t * const tag)
{
	int rc = 0;
	cert_cxml_handler_t * h = (cert_cxml_handler_t *)_h;
	if (cxml_tag_is_open(tag)){
		const char * v;
		v = cxml_tag_attr_value(tag, "type");
		h->nTmpValue = STR2ENUM(_region_types, v);
		if (h->nTmpValue < 0){
			fprintf(stderr, "ERROR: unknown region type: %s\n", v);
			return -1;
		}
	}
	if (h->nTmpValue < sizeof(_region_type_handlers) / sizeof(_region_type_handlers[0])){
		return _region_type_handlers[h->nTmpValue](_h, tag);
	}

	if (cxml_tag_is_open(tag)){
		// region type
		rc = cint8_write(h->nTmpValue, &h->ptr, h->end, NULL);
		bookmark_position(h, tag);
	} else{
		apply_bookmark_size(h, tag);
	}
	return rc;
}

static int region_region_text(cxml_handler_t* const _h, char * const text, int length)
{
	cert_cxml_handler_t * h = (cert_cxml_handler_t *)_h;
	char * end;
	// try to treat it as hex
	end = cstr_hex2bin(h->ptr, h->end - h->ptr, text, length);
	if (end){
		h->ptr = end;
	}
	else{
		if (length > (h->end - h->ptr)){
			fprintf(stderr, "ERROR: region definition is tooooo big: %d bytes\n", length);
			return -1;
		}
		h->ptr = cmemcpy(h->ptr, text, length);
	}
	return 0;
}

1552
1553
1554
1555
1556
1557
1558
1559
1560
1561
1562
1563
1564
1565
1566
1567
1568
1569
1570
1571
1572
1573
1574
1575
1576
1577
1578
1579
static const char * _signature_algorithms[] = {
	"ecdsa_nistp256_with_sha256",
};

static int certificate_signature_tag (cxml_handler_t* const _h, cxml_tag_t * const tag)
{
	int rc = 0;
	cert_cxml_handler_t * h = (cert_cxml_handler_t *)_h;
	if (cxml_tag_is_open(tag)){
		void * key;
		int alg = 0;
		if(h->signer_type == 0){
			// self signed certificate
			key = h->verificationKey;
			if(!key){
				fprintf(stderr, "ERROR: Verification key attribute was not provided for self-signed certificate\n");
				return -1;
			}
		}else{
			const char * v = cxml_tag_attr_value(tag, "algorithm");
			if (v){
				alg = STR2ENUM(_signature_algorithms, v);
				if (alg < 0){
					fprintf(stderr, "%s: Unknown signature algorithm\n", v);
					return -1;
				}
			}

1580
1581
1582
1583
1584
			v = cxml_tag_attr_value(tag, "signer");
			if (v){
				h->signer = v;
			}

1585
1586
1587
1588
1589
1590
1591
1592
1593
1594
1595
1596
1597
1598
1599
1600
1601
1602
1603
1604
1605
1606
1607
1608
1609
1610
1611
1612
1613
1614
1615
1616
1617
1618
1619
			if (h->signer == NULL){
				fprintf(stderr, "ERROR: Signer certificate name shall be provided\n");
				return -1;
			}

			// load signer certificate
			int plen = strlen(_searchPath) + strlen(h->signer);
			char * path = malloc(plen + 16);

			cvstrncpy(path, plen + 16, _searchPath, "/", h->signer, ".vkey", NULL);
			key = ecc_api_key_private_load(path, alg);
			if (key == NULL){
				fprintf(stderr, "%s: Could not load issuing private key\n", path);
				free(path);
				return -1;
			}
		}
		cint8_write(alg, &h->ptr, h->end, &rc);
		rc = ecc_sign(key, h->buf, h->ptr - h->buf - 1, &h->ptr, h->end - h->ptr);
	}
	return rc;
}

static int  _Begin_Tag(cxml_handler_t* const h, cxml_tag_t * const tag)
{
	fprintf(stderr, "WARNING: %s: Unknown tag", tag->name);
	return 0;
}

static int  _End_Tag(cxml_handler_t* const h, cxml_tag_t * const tag)
{
	return 0;
}
static int  _Text(cxml_handler_t* const h, char * const text, int length)
{return 0;}