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New function ASN1_mbstring_copy() to handle ASN1 string copying. Ultimately

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this will be used to clear up the horrible DN mess.
This commit is contained in:
Dr. Stephen Henson 1999-10-21 13:20:49 +00:00
parent 08e9c1af6c
commit 462f79ec44
6 changed files with 391 additions and 4 deletions
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7
CHANGES
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@ -4,6 +4,13 @@
Changes between 0.9.4 and 0.9.5 [xx XXX 1999]
*) New function ASN1_mbstring_copy() this copies a string in either
ASCII, Unicode, Universal (4 bytes per character) or UTF8 format
into an ASN1_STRING type. A mask of permissible types is passed
and it chooses the "minimal" type to use or an error if not type
is suitable.
[Steve Henson]
*) Add function equivalents to the various macros in asn1.h. The old
macros are retained with an M_ prefix. Code inside the library can
use the M_ macros. External code (including the openssl utility)

11
crypto/asn1/Makefile.ssl
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@ -24,7 +24,7 @@ APPS=
LIB=$(TOP)/libcrypto.a
LIBSRC= a_object.c a_bitstr.c a_utctm.c a_gentm.c a_time.c a_int.c a_octet.c \
a_print.c a_type.c a_set.c a_dup.c a_d2i_fp.c a_i2d_fp.c a_bmp.c \
a_enum.c a_vis.c a_utf8.c a_sign.c a_digest.c a_verify.c \
a_enum.c a_vis.c a_utf8.c a_sign.c a_digest.c a_verify.c a_mbstr.c \
x_algor.c x_val.c x_pubkey.c x_sig.c x_req.c x_attrib.c \
x_name.c x_cinf.c x_x509.c x_crl.c x_info.c x_spki.c nsseq.c \
d2i_r_pr.c i2d_r_pr.c d2i_r_pu.c i2d_r_pu.c \
@ -39,7 +39,7 @@ LIBSRC= a_object.c a_bitstr.c a_utctm.c a_gentm.c a_time.c a_int.c a_octet.c \
evp_asn1.c asn_pack.c p5_pbe.c p5_pbev2.c p8_pkey.c
LIBOBJ= a_object.o a_bitstr.o a_utctm.o a_gentm.o a_time.o a_int.o a_octet.o \
a_print.o a_type.o a_set.o a_dup.o a_d2i_fp.o a_i2d_fp.o a_bmp.o \
a_enum.o a_vis.o a_utf8.o a_sign.o a_digest.o a_verify.o \
a_enum.o a_vis.o a_utf8.o a_sign.o a_digest.o a_verify.o a_mbstr.o \
x_algor.o x_val.o x_pubkey.o x_sig.o x_req.o x_attrib.o \
x_name.o x_cinf.o x_x509.o x_crl.o x_info.o x_spki.o nsseq.o \
d2i_r_pr.o i2d_r_pr.o d2i_r_pu.o i2d_r_pu.o \
@ -209,6 +209,13 @@ a_int.o: ../../include/openssl/e_os2.h ../../include/openssl/err.h
a_int.o: ../../include/openssl/opensslconf.h ../../include/openssl/opensslv.h
a_int.o: ../../include/openssl/safestack.h ../../include/openssl/stack.h
a_int.o: ../cryptlib.h
a_mbstr.o: ../../include/openssl/asn1.h ../../include/openssl/bio.h
a_mbstr.o: ../../include/openssl/bn.h ../../include/openssl/buffer.h
a_mbstr.o: ../../include/openssl/crypto.h ../../include/openssl/e_os.h
a_mbstr.o: ../../include/openssl/e_os2.h ../../include/openssl/err.h
a_mbstr.o: ../../include/openssl/opensslconf.h ../../include/openssl/opensslv.h
a_mbstr.o: ../../include/openssl/safestack.h ../../include/openssl/stack.h
a_mbstr.o: ../cryptlib.h
a_meth.o: ../../include/openssl/asn1.h ../../include/openssl/bio.h
a_meth.o: ../../include/openssl/bn.h ../../include/openssl/buffer.h
a_meth.o: ../../include/openssl/crypto.h ../../include/openssl/e_os.h

352
crypto/asn1/a_mbstr.c Normal file
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@ -0,0 +1,352 @@
/* a_mbstr.c */
/* Written by Dr Stephen N Henson (shenson@bigfoot.com) for the OpenSSL
* project 1999.
*/
/* ====================================================================
* Copyright (c) 1999 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 <stdio.h>
#include "cryptlib.h"
#include <openssl/asn1.h>
static int traverse_string(unsigned char *p, int len, int inform,
int (*rfunc)(unsigned long value, void *in), void *arg);
static int in_utf8(unsigned long value, void *arg);
static int out_utf8(unsigned long value, void *arg);
static int type_str(unsigned long value, void *arg);
static int cpy_asc(unsigned long value, void *arg);
static int cpy_bmp(unsigned long value, void *arg);
static int cpy_univ(unsigned long value, void *arg);
static int cpy_utf8(unsigned long value, void *arg);
static int is_printable(unsigned long value);
/* This function takes a string in UTF8, ASCII or multibyte form and
* a mask of permissible ASN1 string types. It then works out the minimal
* type (using the order Printable < IA5 < T61 < BMP < Universal < UTF8)
* and creates a string of the correct type with the supplied data.
* Yes this is horrible: it has to be :-(
*/
int ASN1_mbstring_copy(ASN1_STRING **out, unsigned char *in, int len,
int inform, unsigned long mask)
{
int str_type;
int ret;
int outform, outlen;
ASN1_STRING *dest;
unsigned char *p;
int nchar;
int (*cpyfunc)(unsigned long value, void *in) = NULL;
if(len == -1) len = strlen(in);
/* First do a string check and work out the number of characters */
switch(inform) {
case MBSTRING_BMP:
if(len & 1) {
ASN1err(ASN1_F_ASN1_MBSTRING_COPY,
ASN1_R_INVALID_BMPSTRING_LENGTH);
return -1;
}
nchar = len >> 1;
break;
case MBSTRING_UNIV:
if(len & 3) {
ASN1err(ASN1_F_ASN1_MBSTRING_COPY,
ASN1_R_INVALID_UNIVERSALSTRING_LENGTH);
return -1;
}
nchar = len >> 2;
break;
case MBSTRING_UTF8:
nchar = 0;
ret = traverse_string(in, len, MBSTRING_UTF8, in_utf8, &nchar);
if(ret < 0) {
ASN1err(ASN1_F_ASN1_MBSTRING_COPY,
ASN1_R_INVALID_UTF8STRING);
return -1;
}
break;
case MBSTRING_ASC:
nchar = len;
break;
default:
ASN1err(ASN1_F_ASN1_MBSTRING_COPY, ASN1_R_UNKNOWN_FORMAT);
return -1;
}
/* Now work out minimal type (if any) */
if(traverse_string(in, len, inform, type_str, &mask) < 0) {
ASN1err(ASN1_F_ASN1_MBSTRING_COPY, ASN1_R_ILLEGAL_CHARACTERS);
return -1;
}
/* Now work out output format and string type */
outform = MBSTRING_ASC;
if(mask & B_ASN1_PRINTABLESTRING) str_type = V_ASN1_PRINTABLESTRING;
else if(mask & B_ASN1_IA5STRING) str_type = V_ASN1_IA5STRING;
else if(mask & B_ASN1_T61STRING) str_type = V_ASN1_T61STRING;
else if(mask & B_ASN1_BMPSTRING) {
str_type = V_ASN1_BMPSTRING;
outform = MBSTRING_BMP;
} else if(mask & B_ASN1_UNIVERSALSTRING) {
str_type = V_ASN1_UNIVERSALSTRING;
outform = MBSTRING_UNIV;
} else {
str_type = V_ASN1_UTF8STRING;
outform = MBSTRING_UTF8;
}
if(!out) return str_type;
if(!(dest = ASN1_STRING_type_new(str_type))) {
ASN1err(ASN1_F_ASN1_MBSTRING_COPY, ERR_R_MALLOC_FAILURE);
return -1;
}
*out = dest;
/* If both the same type just copy across */
if(inform == outform) {
if(!ASN1_STRING_set(dest, in, len)) {
ASN1_STRING_free(dest);
ASN1err(ASN1_F_ASN1_MBSTRING_COPY,ERR_R_MALLOC_FAILURE);
return -1;
}
return str_type;
}
/* Work out how much space the destination will need */
switch(outform) {
case MBSTRING_ASC:
outlen = nchar;
cpyfunc = cpy_asc;
break;
case MBSTRING_BMP:
outlen = nchar << 1;
cpyfunc = cpy_bmp;
break;
case MBSTRING_UNIV:
outlen = nchar << 2;
cpyfunc = cpy_univ;
break;
case MBSTRING_UTF8:
outlen = 0;
traverse_string(in, len, inform, out_utf8, &outlen);
cpyfunc = cpy_utf8;
break;
}
if(!(p = Malloc(outlen + 1))) {
ASN1_STRING_free(dest);
ASN1err(ASN1_F_ASN1_MBSTRING_COPY,ERR_R_MALLOC_FAILURE);
return -1;
}
dest->length = outlen;
dest->data = p;
p[outlen] = 0;
traverse_string(in, len, inform, cpyfunc, &p);
return str_type;
}
/* This function traverses a string and passes the value of each character
* to an optional function along with a void * argument.
*/
static int traverse_string(unsigned char *p, int len, int inform,
int (*rfunc)(unsigned long value, void *in), void *arg)
{
unsigned long value;
int ret;
while(len) {
if(inform == MBSTRING_ASC) {
value = *p++;
len--;
} else if(inform == MBSTRING_BMP) {
value = *p++ << 8;
value |= *p++;
len -= 2;
} else if(inform == MBSTRING_UNIV) {
value = *p++ << 24;
value |= *p++ << 16;
value |= *p++ << 8;
value |= *p++;
len -= 4;
} else {
ret = UTF8_getc(p, len, &value);
if(ret < 0) return -1;
len -= ret;
p += ret;
}
if(rfunc) {
ret = rfunc(value, arg);
if(ret <= 0) return ret;
}
}
return 1;
}
/* Various utility functions for traverse_string */
/* Just count number of characters */
static int in_utf8(unsigned long value, void *arg)
{
int *nchar;
nchar = arg;
(*nchar)++;
return 1;
}
/* Determine size of output as a UTF8 String */
static int out_utf8(unsigned long value, void *arg)
{
long *outlen;
outlen = arg;
*outlen += UTF8_putc(NULL, -1, value);
return 1;
}
/* Determine the "type" of a string: check each character against a
* supplied "mask".
*/
static int type_str(unsigned long value, void *arg)
{
unsigned long types;
types = *((unsigned long *)arg);
if((types & B_ASN1_PRINTABLESTRING) && !is_printable(value))
types &= ~B_ASN1_PRINTABLESTRING;
if((types & B_ASN1_IA5STRING) && (value > 127))
types &= ~B_ASN1_IA5STRING;
if((types & B_ASN1_T61STRING) && (value > 0xff))
types &= ~B_ASN1_T61STRING;
if((types & B_ASN1_BMPSTRING) && (value > 0xffff))
types &= ~B_ASN1_BMPSTRING;
if(!types) return -1;
*((unsigned long *)arg) = types;
return 1;
}
/* Copy one byte per character ASCII like strings */
static int cpy_asc(unsigned long value, void *arg)
{
unsigned char **p, *q;
p = arg;
q = *p;
*q = (unsigned char) value;
(*p)++;
return 1;
}
/* Copy two byte per character BMPStrings */
static int cpy_bmp(unsigned long value, void *arg)
{
unsigned char **p, *q;
p = arg;
q = *p;
*q++ = (unsigned char) ((value >> 8) & 0xff);
*q = (unsigned char) (value & 0xff);
*p += 2;
return 1;
}
/* Copy four byte per character UniversalStrings */
static int cpy_univ(unsigned long value, void *arg)
{
unsigned char **p, *q;
p = arg;
q = *p;
*q++ = (unsigned char) ((value >> 24) & 0xff);
*q++ = (unsigned char) ((value >> 16) & 0xff);
*q++ = (unsigned char) ((value >> 8) & 0xff);
*q = (unsigned char) (value & 0xff);
*p += 4;
return 1;
}
/* Copy to a UTF8String */
static int cpy_utf8(unsigned long value, void *arg)
{
unsigned char **p;
int ret;
p = arg;
/* We already know there is enough room so pass 0xff as the length */
ret = UTF8_putc(*p, 0xff, value);
*p += ret;
return 1;
}
/* Return 1 if the character is permitted in a PrintableString */
static int is_printable(unsigned long value)
{
int ch;
if(value > 0x7f) return 0;
ch = (int) value;
/* Note: we can't use 'isalnum' because certain accented
* characters may count as alphanumeric in some environments.
*/
if((ch >= 'a') && (ch <= 'z')) return 1;
if((ch >= 'A') && (ch <= 'Z')) return 1;
if((ch >= '0') && (ch <= '9')) return 1;
if ((ch == ' ') || strchr("'()+,-./:=?", ch)) return 1;
return 0;
}

14
crypto/asn1/asn1.h
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@ -129,6 +129,12 @@ extern "C" {
#define B_ASN1_UNKNOWN 0x1000
#define B_ASN1_UTF8STRING 0x2000
/* For use with ASN1_mbstring_copy() */
#define MBSTRING_ASC 1
#define MBSTRING_BMP 2
#define MBSTRING_UNIV 3
#define MBSTRING_UTF8 4
#define DECLARE_ASN1_SET_OF(type) \
int i2d_ASN1_SET_OF_##type(STACK_OF(type) *a,unsigned char **pp, \
int (*func)(type *,unsigned char **), int ex_tag, \
@ -712,6 +718,8 @@ unsigned char *ASN1_seq_pack(STACK *safes, int (*i2d)(), unsigned char **buf,
int *len );
void *ASN1_unpack_string(ASN1_STRING *oct, char *(*d2i)());
ASN1_STRING *ASN1_pack_string(void *obj, int (*i2d)(), ASN1_OCTET_STRING **oct);
int ASN1_mbstring_copy(ASN1_STRING **out, unsigned char *in, int len,
int inform, unsigned long mask);
/* BEGIN ERROR CODES */
/* The following lines are auto generated by the script mkerr.pl. Any changes
@ -738,6 +746,7 @@ ASN1_STRING *ASN1_pack_string(void *obj, int (*i2d)(), ASN1_OCTET_STRING **oct);
#define ASN1_F_ASN1_I2D_FP 110
#define ASN1_F_ASN1_INTEGER_SET 111
#define ASN1_F_ASN1_INTEGER_TO_BN 112
#define ASN1_F_ASN1_MBSTRING_COPY 282
#define ASN1_F_ASN1_OBJECT_NEW 113
#define ASN1_F_ASN1_PACK_STRING 245
#define ASN1_F_ASN1_PBE_SET 253
@ -933,9 +942,13 @@ ASN1_STRING *ASN1_pack_string(void *obj, int (*i2d)(), ASN1_OCTET_STRING **oct);
#define ASN1_R_FIRST_NUM_TOO_LARGE 119
#define ASN1_R_GENERALIZEDTIME_TOO_LONG 153
#define ASN1_R_HEADER_TOO_LONG 120
#define ASN1_R_ILLEGAL_CHARACTERS 158
#define ASN1_R_INVALID_BMPSTRING_LENGTH 159
#define ASN1_R_INVALID_DIGIT 121
#define ASN1_R_INVALID_SEPARATOR 122
#define ASN1_R_INVALID_TIME_FORMAT 123
#define ASN1_R_INVALID_UNIVERSALSTRING_LENGTH 160
#define ASN1_R_INVALID_UTF8STRING 161
#define ASN1_R_IV_TOO_LARGE 124
#define ASN1_R_LENGTH_ERROR 125
#define ASN1_R_MISSING_SECOND_NUMBER 126
@ -953,6 +966,7 @@ ASN1_STRING *ASN1_pack_string(void *obj, int (*i2d)(), ASN1_OCTET_STRING **oct);
#define ASN1_R_UNABLE_TO_DECODE_RSA_KEY 138
#define ASN1_R_UNABLE_TO_DECODE_RSA_PRIVATE_KEY 139
#define ASN1_R_UNKNOWN_ATTRIBUTE_TYPE 140
#define ASN1_R_UNKNOWN_FORMAT 162
#define ASN1_R_UNKNOWN_MESSAGE_DIGEST_ALGORITHM 141
#define ASN1_R_UNKNOWN_OBJECT_TYPE 142
#define ASN1_R_UNKNOWN_PUBLIC_KEY_TYPE 143

10
crypto/asn1/asn1_err.c
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@ -75,13 +75,14 @@ static ERR_STRING_DATA ASN1_str_functs[]=
{ERR_PACK(0,ASN1_F_ASN1_DUP,0), "ASN1_dup"},
{ERR_PACK(0,ASN1_F_ASN1_ENUMERATED_SET,0), "ASN1_ENUMERATED_set"},
{ERR_PACK(0,ASN1_F_ASN1_ENUMERATED_TO_BN,0), "ASN1_ENUMERATED_to_BN"},
{ERR_PACK(0,ASN1_F_ASN1_GENERALIZEDTIME_NEW,0), "ASN1_GENERALIZEDTIME_NEW"},
{ERR_PACK(0,ASN1_F_ASN1_GENERALIZEDTIME_NEW,0), "ASN1_GENERALIZEDTIME_new"},
{ERR_PACK(0,ASN1_F_ASN1_GET_OBJECT,0), "ASN1_get_object"},
{ERR_PACK(0,ASN1_F_ASN1_HEADER_NEW,0), "ASN1_HEADER_new"},
{ERR_PACK(0,ASN1_F_ASN1_I2D_BIO,0), "ASN1_i2d_bio"},
{ERR_PACK(0,ASN1_F_ASN1_I2D_FP,0), "ASN1_i2d_fp"},
{ERR_PACK(0,ASN1_F_ASN1_INTEGER_SET,0), "ASN1_INTEGER_set"},
{ERR_PACK(0,ASN1_F_ASN1_INTEGER_TO_BN,0), "ASN1_INTEGER_to_BN"},
{ERR_PACK(0,ASN1_F_ASN1_MBSTRING_COPY,0), "ASN1_mbstring_copy"},
{ERR_PACK(0,ASN1_F_ASN1_OBJECT_NEW,0), "ASN1_OBJECT_new"},
{ERR_PACK(0,ASN1_F_ASN1_PACK_STRING,0), "ASN1_pack_string"},
{ERR_PACK(0,ASN1_F_ASN1_PBE_SET,0), "ASN1_PBE_SET"},
@ -94,7 +95,7 @@ static ERR_STRING_DATA ASN1_str_functs[]=
{ERR_PACK(0,ASN1_F_ASN1_TYPE_GET_OCTETSTRING,0), "ASN1_TYPE_get_octetstring"},
{ERR_PACK(0,ASN1_F_ASN1_TYPE_NEW,0), "ASN1_TYPE_new"},
{ERR_PACK(0,ASN1_F_ASN1_UNPACK_STRING,0), "ASN1_unpack_string"},
{ERR_PACK(0,ASN1_F_ASN1_UTCTIME_NEW,0), "ASN1_UTCTIME_NEW"},
{ERR_PACK(0,ASN1_F_ASN1_UTCTIME_NEW,0), "ASN1_UTCTIME_new"},
{ERR_PACK(0,ASN1_F_ASN1_VERIFY,0), "ASN1_verify"},
{ERR_PACK(0,ASN1_F_AUTHORITY_KEYID_NEW,0), "AUTHORITY_KEYID_new"},
{ERR_PACK(0,ASN1_F_BASIC_CONSTRAINTS_NEW,0), "BASIC_CONSTRAINTS_new"},
@ -280,9 +281,13 @@ static ERR_STRING_DATA ASN1_str_reasons[]=
{ASN1_R_FIRST_NUM_TOO_LARGE ,"first num too large"},
{ASN1_R_GENERALIZEDTIME_TOO_LONG ,"generalizedtime too long"},
{ASN1_R_HEADER_TOO_LONG ,"header too long"},
{ASN1_R_ILLEGAL_CHARACTERS ,"illegal characters"},
{ASN1_R_INVALID_BMPSTRING_LENGTH ,"invalid bmpstring length"},
{ASN1_R_INVALID_DIGIT ,"invalid digit"},
{ASN1_R_INVALID_SEPARATOR ,"invalid separator"},
{ASN1_R_INVALID_TIME_FORMAT ,"invalid time format"},
{ASN1_R_INVALID_UNIVERSALSTRING_LENGTH ,"invalid universalstring length"},
{ASN1_R_INVALID_UTF8STRING ,"invalid utf8string"},
{ASN1_R_IV_TOO_LARGE ,"iv too large"},
{ASN1_R_LENGTH_ERROR ,"length error"},
{ASN1_R_MISSING_SECOND_NUMBER ,"missing second number"},
@ -300,6 +305,7 @@ static ERR_STRING_DATA ASN1_str_reasons[]=
{ASN1_R_UNABLE_TO_DECODE_RSA_KEY ,"unable to decode rsa key"},
{ASN1_R_UNABLE_TO_DECODE_RSA_PRIVATE_KEY ,"unable to decode rsa private key"},
{ASN1_R_UNKNOWN_ATTRIBUTE_TYPE ,"unknown attribute type"},
{ASN1_R_UNKNOWN_FORMAT ,"unknown format"},
{ASN1_R_UNKNOWN_MESSAGE_DIGEST_ALGORITHM ,"unknown message digest algorithm"},
{ASN1_R_UNKNOWN_OBJECT_TYPE ,"unknown object type"},
{ASN1_R_UNKNOWN_PUBLIC_KEY_TYPE ,"unknown public key type"},

1
util/libeay.num
View File

@ -1962,3 +1962,4 @@ ASN1_INTEGER_new 1986
i2d_DSAPublicKey_bio 1987
ASN1_STRING_length_set 1988
DIRECTORYSTRING_new 1989
ASN1_mbstring_copy 1990