594 lines
17 KiB
C
594 lines
17 KiB
C
/* tasn_prn.c */
|
|
/*
|
|
* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL project
|
|
* 2000.
|
|
*/
|
|
/* ====================================================================
|
|
* Copyright (c) 2000,2005 The OpenSSL Project. All rights reserved.
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
*
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
*
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in
|
|
* the documentation and/or other materials provided with the
|
|
* distribution.
|
|
*
|
|
* 3. All advertising materials mentioning features or use of this
|
|
* software must display the following acknowledgment:
|
|
* "This product includes software developed by the OpenSSL Project
|
|
* for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
|
|
*
|
|
* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
|
|
* endorse or promote products derived from this software without
|
|
* prior written permission. For written permission, please contact
|
|
* licensing@OpenSSL.org.
|
|
*
|
|
* 5. Products derived from this software may not be called "OpenSSL"
|
|
* nor may "OpenSSL" appear in their names without prior written
|
|
* permission of the OpenSSL Project.
|
|
*
|
|
* 6. Redistributions of any form whatsoever must retain the following
|
|
* acknowledgment:
|
|
* "This product includes software developed by the OpenSSL Project
|
|
* for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
|
|
* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
|
|
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
|
|
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
|
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
|
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
|
|
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
|
|
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
|
|
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
|
|
* OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
* ====================================================================
|
|
*
|
|
* This product includes cryptographic software written by Eric Young
|
|
* (eay@cryptsoft.com). This product includes software written by Tim
|
|
* Hudson (tjh@cryptsoft.com).
|
|
*
|
|
*/
|
|
|
|
#include <stddef.h>
|
|
#include "cryptlib.h"
|
|
#include <openssl/asn1.h>
|
|
#include <openssl/asn1t.h>
|
|
#include <openssl/objects.h>
|
|
#include <openssl/buffer.h>
|
|
#include <openssl/err.h>
|
|
#include <openssl/x509v3.h>
|
|
#include "asn1_locl.h"
|
|
|
|
/*
|
|
* Print routines.
|
|
*/
|
|
|
|
/* ASN1_PCTX routines */
|
|
|
|
ASN1_PCTX default_pctx = {
|
|
ASN1_PCTX_FLAGS_SHOW_ABSENT, /* flags */
|
|
0, /* nm_flags */
|
|
0, /* cert_flags */
|
|
0, /* oid_flags */
|
|
0 /* str_flags */
|
|
};
|
|
|
|
ASN1_PCTX *ASN1_PCTX_new(void)
|
|
{
|
|
ASN1_PCTX *ret;
|
|
ret = OPENSSL_malloc(sizeof(ASN1_PCTX));
|
|
if (ret == NULL) {
|
|
ASN1err(ASN1_F_ASN1_PCTX_NEW, ERR_R_MALLOC_FAILURE);
|
|
return NULL;
|
|
}
|
|
ret->flags = 0;
|
|
ret->nm_flags = 0;
|
|
ret->cert_flags = 0;
|
|
ret->oid_flags = 0;
|
|
ret->str_flags = 0;
|
|
return ret;
|
|
}
|
|
|
|
void ASN1_PCTX_free(ASN1_PCTX *p)
|
|
{
|
|
OPENSSL_free(p);
|
|
}
|
|
|
|
unsigned long ASN1_PCTX_get_flags(ASN1_PCTX *p)
|
|
{
|
|
return p->flags;
|
|
}
|
|
|
|
void ASN1_PCTX_set_flags(ASN1_PCTX *p, unsigned long flags)
|
|
{
|
|
p->flags = flags;
|
|
}
|
|
|
|
unsigned long ASN1_PCTX_get_nm_flags(ASN1_PCTX *p)
|
|
{
|
|
return p->nm_flags;
|
|
}
|
|
|
|
void ASN1_PCTX_set_nm_flags(ASN1_PCTX *p, unsigned long flags)
|
|
{
|
|
p->nm_flags = flags;
|
|
}
|
|
|
|
unsigned long ASN1_PCTX_get_cert_flags(ASN1_PCTX *p)
|
|
{
|
|
return p->cert_flags;
|
|
}
|
|
|
|
void ASN1_PCTX_set_cert_flags(ASN1_PCTX *p, unsigned long flags)
|
|
{
|
|
p->cert_flags = flags;
|
|
}
|
|
|
|
unsigned long ASN1_PCTX_get_oid_flags(ASN1_PCTX *p)
|
|
{
|
|
return p->oid_flags;
|
|
}
|
|
|
|
void ASN1_PCTX_set_oid_flags(ASN1_PCTX *p, unsigned long flags)
|
|
{
|
|
p->oid_flags = flags;
|
|
}
|
|
|
|
unsigned long ASN1_PCTX_get_str_flags(ASN1_PCTX *p)
|
|
{
|
|
return p->str_flags;
|
|
}
|
|
|
|
void ASN1_PCTX_set_str_flags(ASN1_PCTX *p, unsigned long flags)
|
|
{
|
|
p->str_flags = flags;
|
|
}
|
|
|
|
/* Main print routines */
|
|
|
|
static int asn1_item_print_ctx(BIO *out, ASN1_VALUE **fld, int indent,
|
|
const ASN1_ITEM *it,
|
|
const char *fname, const char *sname,
|
|
int nohdr, const ASN1_PCTX *pctx);
|
|
|
|
int asn1_template_print_ctx(BIO *out, ASN1_VALUE **fld, int indent,
|
|
const ASN1_TEMPLATE *tt, const ASN1_PCTX *pctx);
|
|
|
|
static int asn1_primitive_print(BIO *out, ASN1_VALUE **fld,
|
|
const ASN1_ITEM *it, int indent,
|
|
const char *fname, const char *sname,
|
|
const ASN1_PCTX *pctx);
|
|
|
|
static int asn1_print_fsname(BIO *out, int indent,
|
|
const char *fname, const char *sname,
|
|
const ASN1_PCTX *pctx);
|
|
|
|
int ASN1_item_print(BIO *out, ASN1_VALUE *ifld, int indent,
|
|
const ASN1_ITEM *it, const ASN1_PCTX *pctx)
|
|
{
|
|
const char *sname;
|
|
if (pctx == NULL)
|
|
pctx = &default_pctx;
|
|
if (pctx->flags & ASN1_PCTX_FLAGS_NO_STRUCT_NAME)
|
|
sname = NULL;
|
|
else
|
|
sname = it->sname;
|
|
return asn1_item_print_ctx(out, &ifld, indent, it, NULL, sname, 0, pctx);
|
|
}
|
|
|
|
static int asn1_item_print_ctx(BIO *out, ASN1_VALUE **fld, int indent,
|
|
const ASN1_ITEM *it,
|
|
const char *fname, const char *sname,
|
|
int nohdr, const ASN1_PCTX *pctx)
|
|
{
|
|
const ASN1_TEMPLATE *tt;
|
|
const ASN1_EXTERN_FUNCS *ef;
|
|
ASN1_VALUE **tmpfld;
|
|
const ASN1_AUX *aux = it->funcs;
|
|
ASN1_aux_cb *asn1_cb;
|
|
ASN1_PRINT_ARG parg;
|
|
int i;
|
|
if (aux && aux->asn1_cb) {
|
|
parg.out = out;
|
|
parg.indent = indent;
|
|
parg.pctx = pctx;
|
|
asn1_cb = aux->asn1_cb;
|
|
} else
|
|
asn1_cb = 0;
|
|
|
|
if (((it->itype != ASN1_ITYPE_PRIMITIVE)
|
|
|| (it->utype != V_ASN1_BOOLEAN)) && *fld == NULL) {
|
|
if (pctx->flags & ASN1_PCTX_FLAGS_SHOW_ABSENT) {
|
|
if (!nohdr && !asn1_print_fsname(out, indent, fname, sname, pctx))
|
|
return 0;
|
|
if (BIO_puts(out, "<ABSENT>\n") <= 0)
|
|
return 0;
|
|
}
|
|
return 1;
|
|
}
|
|
|
|
switch (it->itype) {
|
|
case ASN1_ITYPE_PRIMITIVE:
|
|
if (it->templates) {
|
|
if (!asn1_template_print_ctx(out, fld, indent,
|
|
it->templates, pctx))
|
|
return 0;
|
|
break;
|
|
}
|
|
/* fall thru */
|
|
case ASN1_ITYPE_MSTRING:
|
|
if (!asn1_primitive_print(out, fld, it, indent, fname, sname, pctx))
|
|
return 0;
|
|
break;
|
|
|
|
case ASN1_ITYPE_EXTERN:
|
|
if (!nohdr && !asn1_print_fsname(out, indent, fname, sname, pctx))
|
|
return 0;
|
|
/* Use new style print routine if possible */
|
|
ef = it->funcs;
|
|
if (ef && ef->asn1_ex_print) {
|
|
i = ef->asn1_ex_print(out, fld, indent, "", pctx);
|
|
if (!i)
|
|
return 0;
|
|
if ((i == 2) && (BIO_puts(out, "\n") <= 0))
|
|
return 0;
|
|
return 1;
|
|
} else if (sname &&
|
|
BIO_printf(out, ":EXTERNAL TYPE %s\n", sname) <= 0)
|
|
return 0;
|
|
break;
|
|
|
|
case ASN1_ITYPE_CHOICE:
|
|
#if 0
|
|
if (!nohdr && !asn1_print_fsname(out, indent, fname, sname, pctx))
|
|
return 0;
|
|
#endif
|
|
/* CHOICE type, get selector */
|
|
i = asn1_get_choice_selector(fld, it);
|
|
/* This should never happen... */
|
|
if ((i < 0) || (i >= it->tcount)) {
|
|
if (BIO_printf(out, "ERROR: selector [%d] invalid\n", i) <= 0)
|
|
return 0;
|
|
return 1;
|
|
}
|
|
tt = it->templates + i;
|
|
tmpfld = asn1_get_field_ptr(fld, tt);
|
|
if (!asn1_template_print_ctx(out, tmpfld, indent, tt, pctx))
|
|
return 0;
|
|
break;
|
|
|
|
case ASN1_ITYPE_SEQUENCE:
|
|
case ASN1_ITYPE_NDEF_SEQUENCE:
|
|
if (!nohdr && !asn1_print_fsname(out, indent, fname, sname, pctx))
|
|
return 0;
|
|
if (fname || sname) {
|
|
if (pctx->flags & ASN1_PCTX_FLAGS_SHOW_SEQUENCE) {
|
|
if (BIO_puts(out, " {\n") <= 0)
|
|
return 0;
|
|
} else {
|
|
if (BIO_puts(out, "\n") <= 0)
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
if (asn1_cb) {
|
|
i = asn1_cb(ASN1_OP_PRINT_PRE, fld, it, &parg);
|
|
if (i == 0)
|
|
return 0;
|
|
if (i == 2)
|
|
return 1;
|
|
}
|
|
|
|
/* Print each field entry */
|
|
for (i = 0, tt = it->templates; i < it->tcount; i++, tt++) {
|
|
const ASN1_TEMPLATE *seqtt;
|
|
seqtt = asn1_do_adb(fld, tt, 1);
|
|
if (!seqtt)
|
|
return 0;
|
|
tmpfld = asn1_get_field_ptr(fld, seqtt);
|
|
if (!asn1_template_print_ctx(out, tmpfld,
|
|
indent + 2, seqtt, pctx))
|
|
return 0;
|
|
}
|
|
if (pctx->flags & ASN1_PCTX_FLAGS_SHOW_SEQUENCE) {
|
|
if (BIO_printf(out, "%*s}\n", indent, "") < 0)
|
|
return 0;
|
|
}
|
|
|
|
if (asn1_cb) {
|
|
i = asn1_cb(ASN1_OP_PRINT_POST, fld, it, &parg);
|
|
if (i == 0)
|
|
return 0;
|
|
}
|
|
break;
|
|
|
|
default:
|
|
BIO_printf(out, "Unprocessed type %d\n", it->itype);
|
|
return 0;
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
|
|
int asn1_template_print_ctx(BIO *out, ASN1_VALUE **fld, int indent,
|
|
const ASN1_TEMPLATE *tt, const ASN1_PCTX *pctx)
|
|
{
|
|
int i, flags;
|
|
const char *sname, *fname;
|
|
flags = tt->flags;
|
|
if (pctx->flags & ASN1_PCTX_FLAGS_SHOW_FIELD_STRUCT_NAME)
|
|
sname = ASN1_ITEM_ptr(tt->item)->sname;
|
|
else
|
|
sname = NULL;
|
|
if (pctx->flags & ASN1_PCTX_FLAGS_NO_FIELD_NAME)
|
|
fname = NULL;
|
|
else
|
|
fname = tt->field_name;
|
|
if (flags & ASN1_TFLG_SK_MASK) {
|
|
char *tname;
|
|
ASN1_VALUE *skitem;
|
|
STACK_OF(ASN1_VALUE) *stack;
|
|
|
|
/* SET OF, SEQUENCE OF */
|
|
if (fname) {
|
|
if (pctx->flags & ASN1_PCTX_FLAGS_SHOW_SSOF) {
|
|
if (flags & ASN1_TFLG_SET_OF)
|
|
tname = "SET";
|
|
else
|
|
tname = "SEQUENCE";
|
|
if (BIO_printf(out, "%*s%s OF %s {\n",
|
|
indent, "", tname, tt->field_name) <= 0)
|
|
return 0;
|
|
} else if (BIO_printf(out, "%*s%s:\n", indent, "", fname) <= 0)
|
|
return 0;
|
|
}
|
|
stack = (STACK_OF(ASN1_VALUE) *)*fld;
|
|
for (i = 0; i < sk_ASN1_VALUE_num(stack); i++) {
|
|
if ((i > 0) && (BIO_puts(out, "\n") <= 0))
|
|
return 0;
|
|
|
|
skitem = sk_ASN1_VALUE_value(stack, i);
|
|
if (!asn1_item_print_ctx(out, &skitem, indent + 2,
|
|
ASN1_ITEM_ptr(tt->item), NULL, NULL, 1,
|
|
pctx))
|
|
return 0;
|
|
}
|
|
if (!i && BIO_printf(out, "%*s<EMPTY>\n", indent + 2, "") <= 0)
|
|
return 0;
|
|
if (pctx->flags & ASN1_PCTX_FLAGS_SHOW_SEQUENCE) {
|
|
if (BIO_printf(out, "%*s}\n", indent, "") <= 0)
|
|
return 0;
|
|
}
|
|
return 1;
|
|
}
|
|
return asn1_item_print_ctx(out, fld, indent, ASN1_ITEM_ptr(tt->item),
|
|
fname, sname, 0, pctx);
|
|
}
|
|
|
|
static int asn1_print_fsname(BIO *out, int indent,
|
|
const char *fname, const char *sname,
|
|
const ASN1_PCTX *pctx)
|
|
{
|
|
static char spaces[] = " ";
|
|
const int nspaces = sizeof(spaces) - 1;
|
|
|
|
#if 0
|
|
if (!sname && !fname)
|
|
return 1;
|
|
#endif
|
|
|
|
while (indent > nspaces) {
|
|
if (BIO_write(out, spaces, nspaces) != nspaces)
|
|
return 0;
|
|
indent -= nspaces;
|
|
}
|
|
if (BIO_write(out, spaces, indent) != indent)
|
|
return 0;
|
|
if (pctx->flags & ASN1_PCTX_FLAGS_NO_STRUCT_NAME)
|
|
sname = NULL;
|
|
if (pctx->flags & ASN1_PCTX_FLAGS_NO_FIELD_NAME)
|
|
fname = NULL;
|
|
if (!sname && !fname)
|
|
return 1;
|
|
if (fname) {
|
|
if (BIO_puts(out, fname) <= 0)
|
|
return 0;
|
|
}
|
|
if (sname) {
|
|
if (fname) {
|
|
if (BIO_printf(out, " (%s)", sname) <= 0)
|
|
return 0;
|
|
} else {
|
|
if (BIO_puts(out, sname) <= 0)
|
|
return 0;
|
|
}
|
|
}
|
|
if (BIO_write(out, ": ", 2) != 2)
|
|
return 0;
|
|
return 1;
|
|
}
|
|
|
|
static int asn1_print_boolean_ctx(BIO *out, int boolval,
|
|
const ASN1_PCTX *pctx)
|
|
{
|
|
const char *str;
|
|
switch (boolval) {
|
|
case -1:
|
|
str = "BOOL ABSENT";
|
|
break;
|
|
|
|
case 0:
|
|
str = "FALSE";
|
|
break;
|
|
|
|
default:
|
|
str = "TRUE";
|
|
break;
|
|
|
|
}
|
|
|
|
if (BIO_puts(out, str) <= 0)
|
|
return 0;
|
|
return 1;
|
|
|
|
}
|
|
|
|
static int asn1_print_integer_ctx(BIO *out, ASN1_INTEGER *str,
|
|
const ASN1_PCTX *pctx)
|
|
{
|
|
char *s;
|
|
int ret = 1;
|
|
s = i2s_ASN1_INTEGER(NULL, str);
|
|
if (s == NULL)
|
|
return 0;
|
|
if (BIO_puts(out, s) <= 0)
|
|
ret = 0;
|
|
OPENSSL_free(s);
|
|
return ret;
|
|
}
|
|
|
|
static int asn1_print_oid_ctx(BIO *out, const ASN1_OBJECT *oid,
|
|
const ASN1_PCTX *pctx)
|
|
{
|
|
char objbuf[80];
|
|
const char *ln;
|
|
ln = OBJ_nid2ln(OBJ_obj2nid(oid));
|
|
if (!ln)
|
|
ln = "";
|
|
OBJ_obj2txt(objbuf, sizeof(objbuf), oid, 1);
|
|
if (BIO_printf(out, "%s (%s)", ln, objbuf) <= 0)
|
|
return 0;
|
|
return 1;
|
|
}
|
|
|
|
static int asn1_print_obstring_ctx(BIO *out, ASN1_STRING *str, int indent,
|
|
const ASN1_PCTX *pctx)
|
|
{
|
|
if (str->type == V_ASN1_BIT_STRING) {
|
|
if (BIO_printf(out, " (%ld unused bits)\n", str->flags & 0x7) <= 0)
|
|
return 0;
|
|
} else if (BIO_puts(out, "\n") <= 0)
|
|
return 0;
|
|
if ((str->length > 0)
|
|
&& BIO_dump_indent(out, (char *)str->data, str->length,
|
|
indent + 2) <= 0)
|
|
return 0;
|
|
return 1;
|
|
}
|
|
|
|
static int asn1_primitive_print(BIO *out, ASN1_VALUE **fld,
|
|
const ASN1_ITEM *it, int indent,
|
|
const char *fname, const char *sname,
|
|
const ASN1_PCTX *pctx)
|
|
{
|
|
long utype;
|
|
ASN1_STRING *str;
|
|
int ret = 1, needlf = 1;
|
|
const char *pname;
|
|
const ASN1_PRIMITIVE_FUNCS *pf;
|
|
pf = it->funcs;
|
|
if (!asn1_print_fsname(out, indent, fname, sname, pctx))
|
|
return 0;
|
|
if (pf && pf->prim_print)
|
|
return pf->prim_print(out, fld, it, indent, pctx);
|
|
if (it->itype == ASN1_ITYPE_MSTRING) {
|
|
str = (ASN1_STRING *)*fld;
|
|
utype = str->type & ~V_ASN1_NEG;
|
|
} else {
|
|
utype = it->utype;
|
|
if (utype == V_ASN1_BOOLEAN)
|
|
str = NULL;
|
|
else
|
|
str = (ASN1_STRING *)*fld;
|
|
}
|
|
if (utype == V_ASN1_ANY) {
|
|
ASN1_TYPE *atype = (ASN1_TYPE *)*fld;
|
|
utype = atype->type;
|
|
fld = &atype->value.asn1_value;
|
|
str = (ASN1_STRING *)*fld;
|
|
if (pctx->flags & ASN1_PCTX_FLAGS_NO_ANY_TYPE)
|
|
pname = NULL;
|
|
else
|
|
pname = ASN1_tag2str(utype);
|
|
} else {
|
|
if (pctx->flags & ASN1_PCTX_FLAGS_SHOW_TYPE)
|
|
pname = ASN1_tag2str(utype);
|
|
else
|
|
pname = NULL;
|
|
}
|
|
|
|
if (utype == V_ASN1_NULL) {
|
|
if (BIO_puts(out, "NULL\n") <= 0)
|
|
return 0;
|
|
return 1;
|
|
}
|
|
|
|
if (pname) {
|
|
if (BIO_puts(out, pname) <= 0)
|
|
return 0;
|
|
if (BIO_puts(out, ":") <= 0)
|
|
return 0;
|
|
}
|
|
|
|
switch (utype) {
|
|
case V_ASN1_BOOLEAN:
|
|
{
|
|
int boolval = *(int *)fld;
|
|
if (boolval == -1)
|
|
boolval = it->size;
|
|
ret = asn1_print_boolean_ctx(out, boolval, pctx);
|
|
}
|
|
break;
|
|
|
|
case V_ASN1_INTEGER:
|
|
case V_ASN1_ENUMERATED:
|
|
ret = asn1_print_integer_ctx(out, str, pctx);
|
|
break;
|
|
|
|
case V_ASN1_UTCTIME:
|
|
ret = ASN1_UTCTIME_print(out, str);
|
|
break;
|
|
|
|
case V_ASN1_GENERALIZEDTIME:
|
|
ret = ASN1_GENERALIZEDTIME_print(out, str);
|
|
break;
|
|
|
|
case V_ASN1_OBJECT:
|
|
ret = asn1_print_oid_ctx(out, (const ASN1_OBJECT *)*fld, pctx);
|
|
break;
|
|
|
|
case V_ASN1_OCTET_STRING:
|
|
case V_ASN1_BIT_STRING:
|
|
ret = asn1_print_obstring_ctx(out, str, indent, pctx);
|
|
needlf = 0;
|
|
break;
|
|
|
|
case V_ASN1_SEQUENCE:
|
|
case V_ASN1_SET:
|
|
case V_ASN1_OTHER:
|
|
if (BIO_puts(out, "\n") <= 0)
|
|
return 0;
|
|
if (ASN1_parse_dump(out, str->data, str->length, indent, 0) <= 0)
|
|
ret = 0;
|
|
needlf = 0;
|
|
break;
|
|
|
|
default:
|
|
ret = ASN1_STRING_print_ex(out, str, pctx->str_flags);
|
|
|
|
}
|
|
if (!ret)
|
|
return 0;
|
|
if (needlf && BIO_puts(out, "\n") <= 0)
|
|
return 0;
|
|
return 1;
|
|
}
|