3 * Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL project
6 /* ====================================================================
7 * Copyright (c) 2000,2005 The OpenSSL Project. All rights reserved.
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
13 * 1. Redistributions of source code must retain the above copyright
14 * notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 * notice, this list of conditions and the following disclaimer in
18 * the documentation and/or other materials provided with the
21 * 3. All advertising materials mentioning features or use of this
22 * software must display the following acknowledgment:
23 * "This product includes software developed by the OpenSSL Project
24 * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
26 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
27 * endorse or promote products derived from this software without
28 * prior written permission. For written permission, please contact
29 * licensing@OpenSSL.org.
31 * 5. Products derived from this software may not be called "OpenSSL"
32 * nor may "OpenSSL" appear in their names without prior written
33 * permission of the OpenSSL Project.
35 * 6. Redistributions of any form whatsoever must retain the following
37 * "This product includes software developed by the OpenSSL Project
38 * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
40 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
41 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
42 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
43 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
44 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
45 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
46 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
47 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
49 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
50 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
51 * OF THE POSSIBILITY OF SUCH DAMAGE.
52 * ====================================================================
54 * This product includes cryptographic software written by Eric Young
55 * (eay@cryptsoft.com). This product includes software written by Tim
56 * Hudson (tjh@cryptsoft.com).
62 #include <openssl/asn1.h>
63 #include <openssl/asn1t.h>
64 #include <openssl/objects.h>
65 #include <openssl/buffer.h>
66 #include <openssl/err.h>
67 #include <openssl/x509v3.h>
68 #include "asn1_locl.h"
74 /* ASN1_PCTX routines */
76 ASN1_PCTX default_pctx = {
77 ASN1_PCTX_FLAGS_SHOW_ABSENT, /* flags */
84 ASN1_PCTX *ASN1_PCTX_new(void)
87 ret = OPENSSL_malloc(sizeof(ASN1_PCTX));
89 ASN1err(ASN1_F_ASN1_PCTX_NEW, ERR_R_MALLOC_FAILURE);
100 void ASN1_PCTX_free(ASN1_PCTX *p)
105 unsigned long ASN1_PCTX_get_flags(ASN1_PCTX *p)
110 void ASN1_PCTX_set_flags(ASN1_PCTX *p, unsigned long flags)
115 unsigned long ASN1_PCTX_get_nm_flags(ASN1_PCTX *p)
120 void ASN1_PCTX_set_nm_flags(ASN1_PCTX *p, unsigned long flags)
125 unsigned long ASN1_PCTX_get_cert_flags(ASN1_PCTX *p)
127 return p->cert_flags;
130 void ASN1_PCTX_set_cert_flags(ASN1_PCTX *p, unsigned long flags)
132 p->cert_flags = flags;
135 unsigned long ASN1_PCTX_get_oid_flags(ASN1_PCTX *p)
140 void ASN1_PCTX_set_oid_flags(ASN1_PCTX *p, unsigned long flags)
142 p->oid_flags = flags;
145 unsigned long ASN1_PCTX_get_str_flags(ASN1_PCTX *p)
150 void ASN1_PCTX_set_str_flags(ASN1_PCTX *p, unsigned long flags)
152 p->str_flags = flags;
155 /* Main print routines */
157 static int asn1_item_print_ctx(BIO *out, ASN1_VALUE **fld, int indent,
159 const char *fname, const char *sname,
160 int nohdr, const ASN1_PCTX *pctx);
162 int asn1_template_print_ctx(BIO *out, ASN1_VALUE **fld, int indent,
163 const ASN1_TEMPLATE *tt, const ASN1_PCTX *pctx);
165 static int asn1_primitive_print(BIO *out, ASN1_VALUE **fld,
166 const ASN1_ITEM *it, int indent,
167 const char *fname, const char *sname,
168 const ASN1_PCTX *pctx);
170 static int asn1_print_fsname(BIO *out, int indent,
171 const char *fname, const char *sname,
172 const ASN1_PCTX *pctx);
174 int ASN1_item_print(BIO *out, ASN1_VALUE *ifld, int indent,
175 const ASN1_ITEM *it, const ASN1_PCTX *pctx)
179 pctx = &default_pctx;
180 if (pctx->flags & ASN1_PCTX_FLAGS_NO_STRUCT_NAME)
184 return asn1_item_print_ctx(out, &ifld, indent, it, NULL, sname, 0, pctx);
187 static int asn1_item_print_ctx(BIO *out, ASN1_VALUE **fld, int indent,
189 const char *fname, const char *sname,
190 int nohdr, const ASN1_PCTX *pctx)
192 const ASN1_TEMPLATE *tt;
193 const ASN1_EXTERN_FUNCS *ef;
195 const ASN1_AUX *aux = it->funcs;
196 ASN1_aux_cb *asn1_cb;
199 if (aux && aux->asn1_cb) {
201 parg.indent = indent;
203 asn1_cb = aux->asn1_cb;
208 if (pctx->flags & ASN1_PCTX_FLAGS_SHOW_ABSENT) {
209 if (!nohdr && !asn1_print_fsname(out, indent, fname, sname, pctx))
211 if (BIO_puts(out, "<ABSENT>\n") <= 0)
218 case ASN1_ITYPE_PRIMITIVE:
220 if (!asn1_template_print_ctx(out, fld, indent,
221 it->templates, pctx))
225 case ASN1_ITYPE_MSTRING:
226 if (!asn1_primitive_print(out, fld, it, indent, fname, sname, pctx))
230 case ASN1_ITYPE_EXTERN:
231 if (!nohdr && !asn1_print_fsname(out, indent, fname, sname, pctx))
233 /* Use new style print routine if possible */
235 if (ef && ef->asn1_ex_print) {
236 i = ef->asn1_ex_print(out, fld, indent, "", pctx);
239 if ((i == 2) && (BIO_puts(out, "\n") <= 0))
243 BIO_printf(out, ":EXTERNAL TYPE %s\n", sname) <= 0)
247 case ASN1_ITYPE_CHOICE:
248 /* CHOICE type, get selector */
249 i = asn1_get_choice_selector(fld, it);
250 /* This should never happen... */
251 if ((i < 0) || (i >= it->tcount)) {
252 if (BIO_printf(out, "ERROR: selector [%d] invalid\n", i) <= 0)
256 tt = it->templates + i;
257 tmpfld = asn1_get_field_ptr(fld, tt);
258 if (!asn1_template_print_ctx(out, tmpfld, indent, tt, pctx))
262 case ASN1_ITYPE_SEQUENCE:
263 case ASN1_ITYPE_NDEF_SEQUENCE:
264 if (!nohdr && !asn1_print_fsname(out, indent, fname, sname, pctx))
266 if (fname || sname) {
267 if (pctx->flags & ASN1_PCTX_FLAGS_SHOW_SEQUENCE) {
268 if (BIO_puts(out, " {\n") <= 0)
271 if (BIO_puts(out, "\n") <= 0)
277 i = asn1_cb(ASN1_OP_PRINT_PRE, fld, it, &parg);
284 /* Print each field entry */
285 for (i = 0, tt = it->templates; i < it->tcount; i++, tt++) {
286 const ASN1_TEMPLATE *seqtt;
287 seqtt = asn1_do_adb(fld, tt, 1);
288 tmpfld = asn1_get_field_ptr(fld, seqtt);
289 if (!asn1_template_print_ctx(out, tmpfld,
290 indent + 2, seqtt, pctx))
293 if (pctx->flags & ASN1_PCTX_FLAGS_SHOW_SEQUENCE) {
294 if (BIO_printf(out, "%*s}\n", indent, "") < 0)
299 i = asn1_cb(ASN1_OP_PRINT_POST, fld, it, &parg);
306 BIO_printf(out, "Unprocessed type %d\n", it->itype);
313 int asn1_template_print_ctx(BIO *out, ASN1_VALUE **fld, int indent,
314 const ASN1_TEMPLATE *tt, const ASN1_PCTX *pctx)
317 const char *sname, *fname;
319 if (pctx->flags & ASN1_PCTX_FLAGS_SHOW_FIELD_STRUCT_NAME)
320 sname = ASN1_ITEM_ptr(tt->item)->sname;
323 if (pctx->flags & ASN1_PCTX_FLAGS_NO_FIELD_NAME)
326 fname = tt->field_name;
327 if (flags & ASN1_TFLG_SK_MASK) {
330 STACK_OF(ASN1_VALUE) *stack;
332 /* SET OF, SEQUENCE OF */
334 if (pctx->flags & ASN1_PCTX_FLAGS_SHOW_SSOF) {
335 if (flags & ASN1_TFLG_SET_OF)
339 if (BIO_printf(out, "%*s%s OF %s {\n",
340 indent, "", tname, tt->field_name) <= 0)
342 } else if (BIO_printf(out, "%*s%s:\n", indent, "", fname) <= 0)
345 stack = (STACK_OF(ASN1_VALUE) *)*fld;
346 for (i = 0; i < sk_ASN1_VALUE_num(stack); i++) {
347 if ((i > 0) && (BIO_puts(out, "\n") <= 0))
350 skitem = sk_ASN1_VALUE_value(stack, i);
351 if (!asn1_item_print_ctx(out, &skitem, indent + 2,
352 ASN1_ITEM_ptr(tt->item), NULL, NULL, 1,
356 if (!i && BIO_printf(out, "%*s<EMPTY>\n", indent + 2, "") <= 0)
358 if (pctx->flags & ASN1_PCTX_FLAGS_SHOW_SEQUENCE) {
359 if (BIO_printf(out, "%*s}\n", indent, "") <= 0)
364 return asn1_item_print_ctx(out, fld, indent, ASN1_ITEM_ptr(tt->item),
365 fname, sname, 0, pctx);
368 static int asn1_print_fsname(BIO *out, int indent,
369 const char *fname, const char *sname,
370 const ASN1_PCTX *pctx)
372 static const char spaces[] = " ";
373 static const int nspaces = sizeof(spaces) - 1;
375 while (indent > nspaces) {
376 if (BIO_write(out, spaces, nspaces) != nspaces)
380 if (BIO_write(out, spaces, indent) != indent)
382 if (pctx->flags & ASN1_PCTX_FLAGS_NO_STRUCT_NAME)
384 if (pctx->flags & ASN1_PCTX_FLAGS_NO_FIELD_NAME)
386 if (!sname && !fname)
389 if (BIO_puts(out, fname) <= 0)
394 if (BIO_printf(out, " (%s)", sname) <= 0)
397 if (BIO_puts(out, sname) <= 0)
401 if (BIO_write(out, ": ", 2) != 2)
406 static int asn1_print_boolean_ctx(BIO *out, int boolval,
407 const ASN1_PCTX *pctx)
425 if (BIO_puts(out, str) <= 0)
431 static int asn1_print_integer_ctx(BIO *out, ASN1_INTEGER *str,
432 const ASN1_PCTX *pctx)
436 s = i2s_ASN1_INTEGER(NULL, str);
437 if (BIO_puts(out, s) <= 0)
443 static int asn1_print_oid_ctx(BIO *out, const ASN1_OBJECT *oid,
444 const ASN1_PCTX *pctx)
448 ln = OBJ_nid2ln(OBJ_obj2nid(oid));
451 OBJ_obj2txt(objbuf, sizeof objbuf, oid, 1);
452 if (BIO_printf(out, "%s (%s)", ln, objbuf) <= 0)
457 static int asn1_print_obstring_ctx(BIO *out, ASN1_STRING *str, int indent,
458 const ASN1_PCTX *pctx)
460 if (str->type == V_ASN1_BIT_STRING) {
461 if (BIO_printf(out, " (%ld unused bits)\n", str->flags & 0x7) <= 0)
463 } else if (BIO_puts(out, "\n") <= 0)
465 if ((str->length > 0)
466 && BIO_dump_indent(out, (char *)str->data, str->length,
472 static int asn1_primitive_print(BIO *out, ASN1_VALUE **fld,
473 const ASN1_ITEM *it, int indent,
474 const char *fname, const char *sname,
475 const ASN1_PCTX *pctx)
479 int ret = 1, needlf = 1;
481 const ASN1_PRIMITIVE_FUNCS *pf;
483 if (!asn1_print_fsname(out, indent, fname, sname, pctx))
485 if (pf && pf->prim_print)
486 return pf->prim_print(out, fld, it, indent, pctx);
487 str = (ASN1_STRING *)*fld;
488 if (it->itype == ASN1_ITYPE_MSTRING)
489 utype = str->type & ~V_ASN1_NEG;
492 if (utype == V_ASN1_ANY) {
493 ASN1_TYPE *atype = (ASN1_TYPE *)*fld;
495 fld = &atype->value.asn1_value;
496 str = (ASN1_STRING *)*fld;
497 if (pctx->flags & ASN1_PCTX_FLAGS_NO_ANY_TYPE)
500 pname = ASN1_tag2str(utype);
502 if (pctx->flags & ASN1_PCTX_FLAGS_SHOW_TYPE)
503 pname = ASN1_tag2str(utype);
508 if (utype == V_ASN1_NULL) {
509 if (BIO_puts(out, "NULL\n") <= 0)
515 if (BIO_puts(out, pname) <= 0)
517 if (BIO_puts(out, ":") <= 0)
524 int boolval = *(int *)fld;
527 ret = asn1_print_boolean_ctx(out, boolval, pctx);
532 case V_ASN1_ENUMERATED:
533 ret = asn1_print_integer_ctx(out, str, pctx);
537 ret = ASN1_UTCTIME_print(out, str);
540 case V_ASN1_GENERALIZEDTIME:
541 ret = ASN1_GENERALIZEDTIME_print(out, str);
545 ret = asn1_print_oid_ctx(out, (const ASN1_OBJECT *)*fld, pctx);
548 case V_ASN1_OCTET_STRING:
549 case V_ASN1_BIT_STRING:
550 ret = asn1_print_obstring_ctx(out, str, indent, pctx);
554 case V_ASN1_SEQUENCE:
557 if (BIO_puts(out, "\n") <= 0)
559 if (ASN1_parse_dump(out, str->data, str->length, indent, 0) <= 0)
565 ret = ASN1_STRING_print_ex(out, str, pctx->str_flags);
570 if (needlf && BIO_puts(out, "\n") <= 0)