source: EcnlProtoTool/trunk/openssl-1.1.0e/apps/asn1pars.c@ 331

Last change on this file since 331 was 331, checked in by coas-nagasima, 6 years ago

prototoolに関連するプロジェクトをnewlibからmuslを使うよう変更・更新
ntshellをnewlibの下位の実装から、muslのsyscallの実装に変更・更新
以下のOSSをアップデート
・mruby-1.3.0
・musl-1.1.18
・onigmo-6.1.3
・tcc-0.9.27
以下のOSSを追加
・openssl-1.1.0e
・curl-7.57.0
・zlib-1.2.11
以下のmrbgemsを追加
・iij/mruby-digest
・iij/mruby-env
・iij/mruby-errno
・iij/mruby-iijson
・iij/mruby-ipaddr
・iij/mruby-mock
・iij/mruby-require
・iij/mruby-tls-openssl
  • Property svn:eol-style set to native
  • Property svn:mime-type set to text/x-csrc
File size: 9.2 KB
Line 
1/*
2 * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
3 *
4 * Licensed under the OpenSSL license (the "License"). You may not use
5 * this file except in compliance with the License. You can obtain a copy
6 * in the file LICENSE in the source distribution or at
7 * https://www.openssl.org/source/license.html
8 */
9
10/*
11 * A nice addition from Dr Stephen Henson <steve@openssl.org> to add the
12 * -strparse option which parses nested binary structures
13 */
14
15#include <stdio.h>
16#include <stdlib.h>
17#include <string.h>
18#include "apps.h"
19#include <openssl/err.h>
20#include <openssl/evp.h>
21#include <openssl/x509.h>
22#include <openssl/pem.h>
23
24typedef enum OPTION_choice {
25 OPT_ERR = -1, OPT_EOF = 0, OPT_HELP,
26 OPT_INFORM, OPT_IN, OPT_OUT, OPT_INDENT, OPT_NOOUT,
27 OPT_OID, OPT_OFFSET, OPT_LENGTH, OPT_DUMP, OPT_DLIMIT,
28 OPT_STRPARSE, OPT_GENSTR, OPT_GENCONF, OPT_STRICTPEM
29} OPTION_CHOICE;
30
31OPTIONS asn1parse_options[] = {
32 {"help", OPT_HELP, '-', "Display this summary"},
33 {"inform", OPT_INFORM, 'F', "input format - one of DER PEM"},
34 {"in", OPT_IN, '<', "input file"},
35 {"out", OPT_OUT, '>', "output file (output format is always DER)"},
36 {"i", OPT_INDENT, 0, "indents the output"},
37 {"noout", OPT_NOOUT, 0, "do not produce any output"},
38 {"offset", OPT_OFFSET, 'p', "offset into file"},
39 {"length", OPT_LENGTH, 'p', "length of section in file"},
40 {"oid", OPT_OID, '<', "file of extra oid definitions"},
41 {"dump", OPT_DUMP, 0, "unknown data in hex form"},
42 {"dlimit", OPT_DLIMIT, 'p',
43 "dump the first arg bytes of unknown data in hex form"},
44 {"strparse", OPT_STRPARSE, 's',
45 "offset; a series of these can be used to 'dig'"},
46 {OPT_MORE_STR, 0, 0, "into multiple ASN1 blob wrappings"},
47 {"genstr", OPT_GENSTR, 's', "string to generate ASN1 structure from"},
48 {"genconf", OPT_GENCONF, 's', "file to generate ASN1 structure from"},
49 {OPT_MORE_STR, 0, 0, "(-inform will be ignored)"},
50 {"strictpem", OPT_STRICTPEM, 0,
51 "do not attempt base64 decode outside PEM markers"},
52 {NULL}
53};
54
55static int do_generate(char *genstr, const char *genconf, BUF_MEM *buf);
56
57int asn1parse_main(int argc, char **argv)
58{
59 ASN1_TYPE *at = NULL;
60 BIO *in = NULL, *b64 = NULL, *derout = NULL;
61 BUF_MEM *buf = NULL;
62 STACK_OF(OPENSSL_STRING) *osk = NULL;
63 char *genstr = NULL, *genconf = NULL;
64 char *infile = NULL, *oidfile = NULL, *derfile = NULL;
65 unsigned char *str = NULL;
66 char *name = NULL, *header = NULL, *prog;
67 const unsigned char *ctmpbuf;
68 int indent = 0, noout = 0, dump = 0, strictpem = 0, informat = FORMAT_PEM;
69 int offset = 0, ret = 1, i, j;
70 long num, tmplen;
71 unsigned char *tmpbuf;
72 unsigned int length = 0;
73 OPTION_CHOICE o;
74
75 prog = opt_init(argc, argv, asn1parse_options);
76
77 if ((osk = sk_OPENSSL_STRING_new_null()) == NULL) {
78 BIO_printf(bio_err, "%s: Memory allocation failure\n", prog);
79 goto end;
80 }
81
82 while ((o = opt_next()) != OPT_EOF) {
83 switch (o) {
84 case OPT_EOF:
85 case OPT_ERR:
86 opthelp:
87 BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
88 goto end;
89 case OPT_HELP:
90 opt_help(asn1parse_options);
91 ret = 0;
92 goto end;
93 case OPT_INFORM:
94 if (!opt_format(opt_arg(), OPT_FMT_PEMDER, &informat))
95 goto opthelp;
96 break;
97 case OPT_IN:
98 infile = opt_arg();
99 break;
100 case OPT_OUT:
101 derfile = opt_arg();
102 break;
103 case OPT_INDENT:
104 indent = 1;
105 break;
106 case OPT_NOOUT:
107 noout = 1;
108 break;
109 case OPT_OID:
110 oidfile = opt_arg();
111 break;
112 case OPT_OFFSET:
113 offset = strtol(opt_arg(), NULL, 0);
114 break;
115 case OPT_LENGTH:
116 length = atoi(opt_arg());
117 break;
118 case OPT_DUMP:
119 dump = -1;
120 break;
121 case OPT_DLIMIT:
122 dump = atoi(opt_arg());
123 break;
124 case OPT_STRPARSE:
125 sk_OPENSSL_STRING_push(osk, opt_arg());
126 break;
127 case OPT_GENSTR:
128 genstr = opt_arg();
129 break;
130 case OPT_GENCONF:
131 genconf = opt_arg();
132 break;
133 case OPT_STRICTPEM:
134 strictpem = 1;
135 informat = FORMAT_PEM;
136 break;
137 }
138 }
139 argc = opt_num_rest();
140 if (argc != 0)
141 goto opthelp;
142
143 if (oidfile != NULL) {
144 in = bio_open_default(oidfile, 'r', FORMAT_TEXT);
145 if (in == NULL)
146 goto end;
147 OBJ_create_objects(in);
148 BIO_free(in);
149 }
150
151 if ((in = bio_open_default(infile, 'r', informat)) == NULL)
152 goto end;
153
154 if (derfile && (derout = bio_open_default(derfile, 'w', FORMAT_ASN1)) == NULL)
155 goto end;
156
157 if (strictpem) {
158 if (PEM_read_bio(in, &name, &header, &str, &num) !=
159 1) {
160 BIO_printf(bio_err, "Error reading PEM file\n");
161 ERR_print_errors(bio_err);
162 goto end;
163 }
164 } else {
165
166 if ((buf = BUF_MEM_new()) == NULL)
167 goto end;
168 if (!BUF_MEM_grow(buf, BUFSIZ * 8))
169 goto end; /* Pre-allocate :-) */
170
171 if (genstr || genconf) {
172 num = do_generate(genstr, genconf, buf);
173 if (num < 0) {
174 ERR_print_errors(bio_err);
175 goto end;
176 }
177 }
178
179 else {
180
181 if (informat == FORMAT_PEM) {
182 BIO *tmp;
183
184 if ((b64 = BIO_new(BIO_f_base64())) == NULL)
185 goto end;
186 BIO_push(b64, in);
187 tmp = in;
188 in = b64;
189 b64 = tmp;
190 }
191
192 num = 0;
193 for (;;) {
194 if (!BUF_MEM_grow(buf, (int)num + BUFSIZ))
195 goto end;
196 i = BIO_read(in, &(buf->data[num]), BUFSIZ);
197 if (i <= 0)
198 break;
199 num += i;
200 }
201 }
202 str = (unsigned char *)buf->data;
203
204 }
205
206 /* If any structs to parse go through in sequence */
207
208 if (sk_OPENSSL_STRING_num(osk)) {
209 tmpbuf = str;
210 tmplen = num;
211 for (i = 0; i < sk_OPENSSL_STRING_num(osk); i++) {
212 ASN1_TYPE *atmp;
213 int typ;
214 j = atoi(sk_OPENSSL_STRING_value(osk, i));
215 if (j == 0) {
216 BIO_printf(bio_err, "'%s' is an invalid number\n",
217 sk_OPENSSL_STRING_value(osk, i));
218 continue;
219 }
220 tmpbuf += j;
221 tmplen -= j;
222 atmp = at;
223 ctmpbuf = tmpbuf;
224 at = d2i_ASN1_TYPE(NULL, &ctmpbuf, tmplen);
225 ASN1_TYPE_free(atmp);
226 if (!at) {
227 BIO_printf(bio_err, "Error parsing structure\n");
228 ERR_print_errors(bio_err);
229 goto end;
230 }
231 typ = ASN1_TYPE_get(at);
232 if ((typ == V_ASN1_OBJECT)
233 || (typ == V_ASN1_BOOLEAN)
234 || (typ == V_ASN1_NULL)) {
235 BIO_printf(bio_err, "Can't parse %s type\n", ASN1_tag2str(typ));
236 ERR_print_errors(bio_err);
237 goto end;
238 }
239 /* hmm... this is a little evil but it works */
240 tmpbuf = at->value.asn1_string->data;
241 tmplen = at->value.asn1_string->length;
242 }
243 str = tmpbuf;
244 num = tmplen;
245 }
246
247 if (offset >= num) {
248 BIO_printf(bio_err, "Error: offset too large\n");
249 goto end;
250 }
251
252 num -= offset;
253
254 if ((length == 0) || ((long)length > num))
255 length = (unsigned int)num;
256 if (derout) {
257 if (BIO_write(derout, str + offset, length) != (int)length) {
258 BIO_printf(bio_err, "Error writing output\n");
259 ERR_print_errors(bio_err);
260 goto end;
261 }
262 }
263 if (!noout &&
264 !ASN1_parse_dump(bio_out, &(str[offset]), length,
265 indent, dump)) {
266 ERR_print_errors(bio_err);
267 goto end;
268 }
269 ret = 0;
270 end:
271 BIO_free(derout);
272 BIO_free(in);
273 BIO_free(b64);
274 if (ret != 0)
275 ERR_print_errors(bio_err);
276 BUF_MEM_free(buf);
277 OPENSSL_free(name);
278 OPENSSL_free(header);
279 if (strictpem)
280 OPENSSL_free(str);
281 ASN1_TYPE_free(at);
282 sk_OPENSSL_STRING_free(osk);
283 return (ret);
284}
285
286static int do_generate(char *genstr, const char *genconf, BUF_MEM *buf)
287{
288 CONF *cnf = NULL;
289 int len;
290 unsigned char *p;
291 ASN1_TYPE *atyp = NULL;
292
293 if (genconf) {
294 if ((cnf = app_load_config(genconf)) == NULL)
295 goto err;
296 if (!genstr)
297 genstr = NCONF_get_string(cnf, "default", "asn1");
298 if (!genstr) {
299 BIO_printf(bio_err, "Can't find 'asn1' in '%s'\n", genconf);
300 goto err;
301 }
302 }
303
304 atyp = ASN1_generate_nconf(genstr, cnf);
305 NCONF_free(cnf);
306 cnf = NULL;
307
308 if (!atyp)
309 return -1;
310
311 len = i2d_ASN1_TYPE(atyp, NULL);
312
313 if (len <= 0)
314 goto err;
315
316 if (!BUF_MEM_grow(buf, len))
317 goto err;
318
319 p = (unsigned char *)buf->data;
320
321 i2d_ASN1_TYPE(atyp, &p);
322
323 ASN1_TYPE_free(atyp);
324 return len;
325
326 err:
327 NCONF_free(cnf);
328 ASN1_TYPE_free(atyp);
329 return -1;
330}
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