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
))
226 case ASN1_ITYPE_MSTRING
:
227 if (!asn1_primitive_print(out
, fld
, it
, indent
, fname
, sname
, pctx
))
231 case ASN1_ITYPE_EXTERN
:
232 if (!nohdr
&& !asn1_print_fsname(out
, indent
, fname
, sname
, pctx
))
234 /* Use new style print routine if possible */
236 if (ef
&& ef
->asn1_ex_print
) {
237 i
= ef
->asn1_ex_print(out
, fld
, indent
, "", pctx
);
240 if ((i
== 2) && (BIO_puts(out
, "\n") <= 0))
244 BIO_printf(out
, ":EXTERNAL TYPE %s\n", sname
) <= 0)
248 case ASN1_ITYPE_CHOICE
:
250 if (!nohdr
&& !asn1_print_fsname(out
, indent
, fname
, sname
, pctx
))
253 /* CHOICE type, get selector */
254 i
= asn1_get_choice_selector(fld
, it
);
255 /* This should never happen... */
256 if ((i
< 0) || (i
>= it
->tcount
)) {
257 if (BIO_printf(out
, "ERROR: selector [%d] invalid\n", i
) <= 0)
261 tt
= it
->templates
+ i
;
262 tmpfld
= asn1_get_field_ptr(fld
, tt
);
263 if (!asn1_template_print_ctx(out
, tmpfld
, indent
, tt
, pctx
))
267 case ASN1_ITYPE_SEQUENCE
:
268 case ASN1_ITYPE_NDEF_SEQUENCE
:
269 if (!nohdr
&& !asn1_print_fsname(out
, indent
, fname
, sname
, pctx
))
271 if (fname
|| sname
) {
272 if (pctx
->flags
& ASN1_PCTX_FLAGS_SHOW_SEQUENCE
) {
273 if (BIO_puts(out
, " {\n") <= 0)
276 if (BIO_puts(out
, "\n") <= 0)
282 i
= asn1_cb(ASN1_OP_PRINT_PRE
, fld
, it
, &parg
);
289 /* Print each field entry */
290 for (i
= 0, tt
= it
->templates
; i
< it
->tcount
; i
++, tt
++) {
291 const ASN1_TEMPLATE
*seqtt
;
292 seqtt
= asn1_do_adb(fld
, tt
, 1);
295 tmpfld
= asn1_get_field_ptr(fld
, seqtt
);
296 if (!asn1_template_print_ctx(out
, tmpfld
,
297 indent
+ 2, seqtt
, pctx
))
300 if (pctx
->flags
& ASN1_PCTX_FLAGS_SHOW_SEQUENCE
) {
301 if (BIO_printf(out
, "%*s}\n", indent
, "") < 0)
306 i
= asn1_cb(ASN1_OP_PRINT_POST
, fld
, it
, &parg
);
313 BIO_printf(out
, "Unprocessed type %d\n", it
->itype
);
320 int asn1_template_print_ctx(BIO
*out
, ASN1_VALUE
**fld
, int indent
,
321 const ASN1_TEMPLATE
*tt
, const ASN1_PCTX
*pctx
)
324 const char *sname
, *fname
;
326 if (pctx
->flags
& ASN1_PCTX_FLAGS_SHOW_FIELD_STRUCT_NAME
)
327 sname
= ASN1_ITEM_ptr(tt
->item
)->sname
;
330 if (pctx
->flags
& ASN1_PCTX_FLAGS_NO_FIELD_NAME
)
333 fname
= tt
->field_name
;
334 if (flags
& ASN1_TFLG_SK_MASK
) {
337 STACK_OF(ASN1_VALUE
) *stack
;
339 /* SET OF, SEQUENCE OF */
341 if (pctx
->flags
& ASN1_PCTX_FLAGS_SHOW_SSOF
) {
342 if (flags
& ASN1_TFLG_SET_OF
)
346 if (BIO_printf(out
, "%*s%s OF %s {\n",
347 indent
, "", tname
, tt
->field_name
) <= 0)
349 } else if (BIO_printf(out
, "%*s%s:\n", indent
, "", fname
) <= 0)
352 stack
= (STACK_OF(ASN1_VALUE
) *)*fld
;
353 for (i
= 0; i
< sk_ASN1_VALUE_num(stack
); i
++) {
354 if ((i
> 0) && (BIO_puts(out
, "\n") <= 0))
357 skitem
= sk_ASN1_VALUE_value(stack
, i
);
358 if (!asn1_item_print_ctx(out
, &skitem
, indent
+ 2,
359 ASN1_ITEM_ptr(tt
->item
), NULL
, NULL
, 1,
363 if (!i
&& BIO_printf(out
, "%*s<EMPTY>\n", indent
+ 2, "") <= 0)
365 if (pctx
->flags
& ASN1_PCTX_FLAGS_SHOW_SEQUENCE
) {
366 if (BIO_printf(out
, "%*s}\n", indent
, "") <= 0)
371 return asn1_item_print_ctx(out
, fld
, indent
, ASN1_ITEM_ptr(tt
->item
),
372 fname
, sname
, 0, pctx
);
375 static int asn1_print_fsname(BIO
*out
, int indent
,
376 const char *fname
, const char *sname
,
377 const ASN1_PCTX
*pctx
)
379 static char spaces
[] = " ";
380 const int nspaces
= sizeof(spaces
) - 1;
383 if (!sname
&& !fname
)
387 while (indent
> nspaces
) {
388 if (BIO_write(out
, spaces
, nspaces
) != nspaces
)
392 if (BIO_write(out
, spaces
, indent
) != indent
)
394 if (pctx
->flags
& ASN1_PCTX_FLAGS_NO_STRUCT_NAME
)
396 if (pctx
->flags
& ASN1_PCTX_FLAGS_NO_FIELD_NAME
)
398 if (!sname
&& !fname
)
401 if (BIO_puts(out
, fname
) <= 0)
406 if (BIO_printf(out
, " (%s)", sname
) <= 0)
409 if (BIO_puts(out
, sname
) <= 0)
413 if (BIO_write(out
, ": ", 2) != 2)
418 static int asn1_print_boolean_ctx(BIO
*out
, int boolval
,
419 const ASN1_PCTX
*pctx
)
437 if (BIO_puts(out
, str
) <= 0)
443 static int asn1_print_integer_ctx(BIO
*out
, ASN1_INTEGER
*str
,
444 const ASN1_PCTX
*pctx
)
448 s
= i2s_ASN1_INTEGER(NULL
, str
);
449 if (BIO_puts(out
, s
) <= 0)
455 static int asn1_print_oid_ctx(BIO
*out
, const ASN1_OBJECT
*oid
,
456 const ASN1_PCTX
*pctx
)
460 ln
= OBJ_nid2ln(OBJ_obj2nid(oid
));
463 OBJ_obj2txt(objbuf
, sizeof objbuf
, oid
, 1);
464 if (BIO_printf(out
, "%s (%s)", ln
, objbuf
) <= 0)
469 static int asn1_print_obstring_ctx(BIO
*out
, ASN1_STRING
*str
, int indent
,
470 const ASN1_PCTX
*pctx
)
472 if (str
->type
== V_ASN1_BIT_STRING
) {
473 if (BIO_printf(out
, " (%ld unused bits)\n", str
->flags
& 0x7) <= 0)
475 } else if (BIO_puts(out
, "\n") <= 0)
477 if ((str
->length
> 0)
478 && BIO_dump_indent(out
, (char *)str
->data
, str
->length
,
484 static int asn1_primitive_print(BIO
*out
, ASN1_VALUE
**fld
,
485 const ASN1_ITEM
*it
, int indent
,
486 const char *fname
, const char *sname
,
487 const ASN1_PCTX
*pctx
)
491 int ret
= 1, needlf
= 1;
493 const ASN1_PRIMITIVE_FUNCS
*pf
;
495 if (!asn1_print_fsname(out
, indent
, fname
, sname
, pctx
))
497 if (pf
&& pf
->prim_print
)
498 return pf
->prim_print(out
, fld
, it
, indent
, pctx
);
499 str
= (ASN1_STRING
*)*fld
;
500 if (it
->itype
== ASN1_ITYPE_MSTRING
)
501 utype
= str
->type
& ~V_ASN1_NEG
;
504 if (utype
== V_ASN1_ANY
) {
505 ASN1_TYPE
*atype
= (ASN1_TYPE
*)*fld
;
507 fld
= &atype
->value
.asn1_value
;
508 str
= (ASN1_STRING
*)*fld
;
509 if (pctx
->flags
& ASN1_PCTX_FLAGS_NO_ANY_TYPE
)
512 pname
= ASN1_tag2str(utype
);
514 if (pctx
->flags
& ASN1_PCTX_FLAGS_SHOW_TYPE
)
515 pname
= ASN1_tag2str(utype
);
520 if (utype
== V_ASN1_NULL
) {
521 if (BIO_puts(out
, "NULL\n") <= 0)
527 if (BIO_puts(out
, pname
) <= 0)
529 if (BIO_puts(out
, ":") <= 0)
536 int boolval
= *(int *)fld
;
539 ret
= asn1_print_boolean_ctx(out
, boolval
, pctx
);
544 case V_ASN1_ENUMERATED
:
545 ret
= asn1_print_integer_ctx(out
, str
, pctx
);
549 ret
= ASN1_UTCTIME_print(out
, str
);
552 case V_ASN1_GENERALIZEDTIME
:
553 ret
= ASN1_GENERALIZEDTIME_print(out
, str
);
557 ret
= asn1_print_oid_ctx(out
, (const ASN1_OBJECT
*)*fld
, pctx
);
560 case V_ASN1_OCTET_STRING
:
561 case V_ASN1_BIT_STRING
:
562 ret
= asn1_print_obstring_ctx(out
, str
, indent
, pctx
);
566 case V_ASN1_SEQUENCE
:
569 if (BIO_puts(out
, "\n") <= 0)
571 if (ASN1_parse_dump(out
, str
->data
, str
->length
, indent
, 0) <= 0)
577 ret
= ASN1_STRING_print_ex(out
, str
, pctx
->str_flags
);
582 if (needlf
&& BIO_puts(out
, "\n") <= 0)