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Move ASN1_bn_print to a static function in evp/print.c.

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It's not used anywhere else, in the library or consumers (Google ones or
ones I could find on Debian codesearch). This is a sufficiently
specialized function that the risk of a third-party library newly
depending on it is low. This removes the last include of asn1.h or
x509.h in crypto/evp.

(This is almost entirely cosmetic because it wasn't keeping the static linker
from doing the right thing anyway. But if we were want to separate the legacy
ASN.1 stack into its own decrepit-like target, we'll need to be pickier about
separation.)

Change-Id: I9be97c9321572e3a2ed093e1d50036b7654cff41
Reviewed-on: https://boringssl-review.googlesource.com/7080
Reviewed-by: Adam Langley <agl@google.com>
This commit is contained in:
David Benjamin 2016-02-07 12:31:53 -05:00 committed by Adam Langley
parent 63d9246812
commit f4e447c16d
4 changed files with 73 additions and 130 deletions
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1
crypto/asn1/CMakeLists.txt
View File

@ -32,7 +32,6 @@ add_library(
f_int.c
f_string.c
t_bitst.c
t_pkey.c
tasn_dec.c
tasn_enc.c
tasn_fre.c

110
crypto/asn1/t_pkey.c
View File

@ -1,110 +0,0 @@
/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
* All rights reserved.
*
* This package is an SSL implementation written
* by Eric Young (eay@cryptsoft.com).
* The implementation was written so as to conform with Netscapes SSL.
*
* This library is free for commercial and non-commercial use as long as
* the following conditions are aheared to. The following conditions
* apply to all code found in this distribution, be it the RC4, RSA,
* lhash, DES, etc., code; not just the SSL code. The SSL documentation
* included with this distribution is covered by the same copyright terms
* except that the holder is Tim Hudson (tjh@cryptsoft.com).
*
* Copyright remains Eric Young's, and as such any Copyright notices in
* the code are not to be removed.
* If this package is used in a product, Eric Young should be given attribution
* as the author of the parts of the library used.
* This can be in the form of a textual message at program startup or
* in documentation (online or textual) provided with the package.
*
* 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 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 acknowledgement:
* "This product includes cryptographic software written by
* Eric Young (eay@cryptsoft.com)"
* The word 'cryptographic' can be left out if the rouines from the library
* being used are not cryptographic related :-).
* 4. If you include any Windows specific code (or a derivative thereof) from
* the apps directory (application code) you must include an acknowledgement:
* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
*
* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
* ANY EXPRESS 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 AUTHOR OR 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.
*
* The licence and distribution terms for any publically available version or
* derivative of this code cannot be changed. i.e. this code cannot simply be
* copied and put under another distribution licence
* [including the GNU Public Licence.] */
#include <openssl/asn1.h>
#include <openssl/bio.h>
#include <openssl/mem.h>
int ASN1_bn_print(BIO *bp, const char *number, const BIGNUM *num,
unsigned char *buf, int off)
{
int n, i;
const char *neg;
if (num == NULL)
return (1);
neg = (BN_is_negative(num)) ? "-" : "";
if (!BIO_indent(bp, off, 128))
return 0;
if (BN_is_zero(num)) {
if (BIO_printf(bp, "%s 0\n", number) <= 0)
return 0;
return 1;
}
if (BN_num_bytes(num) <= sizeof(long)) {
if (BIO_printf(bp, "%s %s%lu (%s0x%lx)\n", number, neg,
(unsigned long)num->d[0], neg,
(unsigned long)num->d[0])
<= 0)
return (0);
} else {
buf[0] = 0;
if (BIO_printf(bp, "%s%s", number,
(neg[0] == '-') ? " (Negative)" : "") <= 0)
return (0);
n = BN_bn2bin(num, &buf[1]);
if (buf[1] & 0x80)
n++;
else
buf++;
for (i = 0; i < n; i++) {
if ((i % 15) == 0) {
if (BIO_puts(bp, "\n") <= 0 || !BIO_indent(bp, off + 4, 128))
return 0;
}
if (BIO_printf(bp, "%02x%s", buf[i], ((i + 1) == n) ? "" : ":")
<= 0)
return (0);
}
if (BIO_write(bp, "\n", 1) <= 0)
return (0);
}
return (1);
}

91
crypto/evp/print.c
View File

@ -52,7 +52,6 @@
#include <openssl/evp.h>
#include <openssl/asn1.h>
#include <openssl/bio.h>
#include <openssl/bn.h>
#include <openssl/dsa.h>
@ -64,6 +63,62 @@
#include "../rsa/internal.h"
static int bn_print(BIO *bp, const char *number, const BIGNUM *num,
uint8_t *buf, int off) {
if (num == NULL) {
return 1;
}
if (!BIO_indent(bp, off, 128)) {
return 0;
}
if (BN_is_zero(num)) {
if (BIO_printf(bp, "%s 0\n", number) <= 0) {
return 0;
}
return 1;
}
if (BN_num_bytes(num) <= sizeof(long)) {
const char *neg = BN_is_negative(num) ? "-" : "";
if (BIO_printf(bp, "%s %s%lu (%s0x%lx)\n", number, neg,
(unsigned long)num->d[0], neg,
(unsigned long)num->d[0]) <= 0) {
return 0;
}
} else {
buf[0] = 0;
if (BIO_printf(bp, "%s%s", number,
(BN_is_negative(num)) ? " (Negative)" : "") <= 0) {
return 0;
}
int n = BN_bn2bin(num, &buf[1]);
if (buf[1] & 0x80) {
n++;
} else {
buf++;
}
int i;
for (i = 0; i < n; i++) {
if ((i % 15) == 0) {
if (BIO_puts(bp, "\n") <= 0 ||
!BIO_indent(bp, off + 4, 128)) {
return 0;
}
}
if (BIO_printf(bp, "%02x%s", buf[i], ((i + 1) == n) ? "" : ":") <= 0) {
return 0;
}
}
if (BIO_write(bp, "\n", 1) <= 0) {
return 0;
}
}
return 1;
}
static void update_buflen(const BIGNUM *b, size_t *pbuflen) {
size_t i;
@ -139,18 +194,18 @@ static int do_rsa_print(BIO *out, const RSA *rsa, int off,
str = "Modulus:";
s = "Exponent:";
}
if (!ASN1_bn_print(out, str, rsa->n, m, off) ||
!ASN1_bn_print(out, s, rsa->e, m, off)) {
if (!bn_print(out, str, rsa->n, m, off) ||
!bn_print(out, s, rsa->e, m, off)) {
goto err;
}
if (include_private) {
if (!ASN1_bn_print(out, "privateExponent:", rsa->d, m, off) ||
!ASN1_bn_print(out, "prime1:", rsa->p, m, off) ||
!ASN1_bn_print(out, "prime2:", rsa->q, m, off) ||
!ASN1_bn_print(out, "exponent1:", rsa->dmp1, m, off) ||
!ASN1_bn_print(out, "exponent2:", rsa->dmq1, m, off) ||
!ASN1_bn_print(out, "coefficient:", rsa->iqmp, m, off)) {
if (!bn_print(out, "privateExponent:", rsa->d, m, off) ||
!bn_print(out, "prime1:", rsa->p, m, off) ||
!bn_print(out, "prime2:", rsa->q, m, off) ||
!bn_print(out, "exponent1:", rsa->dmp1, m, off) ||
!bn_print(out, "exponent2:", rsa->dmq1, m, off) ||
!bn_print(out, "coefficient:", rsa->iqmp, m, off)) {
goto err;
}
@ -168,9 +223,9 @@ static int do_rsa_print(BIO *out, const RSA *rsa, int off,
if (BIO_printf(out, "otherPrimeInfo (prime %u):\n",
(unsigned)(i + 3)) <= 0 ||
!ASN1_bn_print(out, "prime:", ap->prime, m, off) ||
!ASN1_bn_print(out, "exponent:", ap->exp, m, off) ||
!ASN1_bn_print(out, "coeff:", ap->coeff, m, off)) {
!bn_print(out, "prime:", ap->prime, m, off) ||
!bn_print(out, "exponent:", ap->exp, m, off) ||
!bn_print(out, "coeff:", ap->coeff, m, off)) {
goto err;
}
}
@ -240,11 +295,11 @@ static int do_dsa_print(BIO *bp, const DSA *x, int off, int ptype) {
}
}
if (!ASN1_bn_print(bp, "priv:", priv_key, m, off) ||
!ASN1_bn_print(bp, "pub: ", pub_key, m, off) ||
!ASN1_bn_print(bp, "P: ", x->p, m, off) ||
!ASN1_bn_print(bp, "Q: ", x->q, m, off) ||
!ASN1_bn_print(bp, "G: ", x->g, m, off)) {
if (!bn_print(bp, "priv:", priv_key, m, off) ||
!bn_print(bp, "pub: ", pub_key, m, off) ||
!bn_print(bp, "P: ", x->p, m, off) ||
!bn_print(bp, "Q: ", x->q, m, off) ||
!bn_print(bp, "G: ", x->g, m, off)) {
goto err;
}
ret = 1;
@ -355,7 +410,7 @@ static int do_EC_KEY_print(BIO *bp, const EC_KEY *x, int off, int ktype) {
}
if ((priv_key != NULL) &&
!ASN1_bn_print(bp, "priv:", priv_key, buffer, off)) {
!bn_print(bp, "priv:", priv_key, buffer, off)) {
goto err;
}
if (pub_key_bytes != NULL) {

1
include/openssl/asn1.h
View File

@ -966,7 +966,6 @@ OPENSSL_EXPORT int ASN1_GENERALIZEDTIME_print(BIO *fp, const ASN1_GENERALIZEDTIM
OPENSSL_EXPORT int ASN1_TIME_print(BIO *fp, const ASN1_TIME *a);
OPENSSL_EXPORT int ASN1_STRING_print(BIO *bp, const ASN1_STRING *v);
OPENSSL_EXPORT int ASN1_STRING_print_ex(BIO *out, ASN1_STRING *str, unsigned long flags);
OPENSSL_EXPORT int ASN1_bn_print(BIO *bp, const char *number, const BIGNUM *num, unsigned char *buf, int off);
OPENSSL_EXPORT int ASN1_parse(BIO *bp,const unsigned char *pp,long len,int indent);
OPENSSL_EXPORT int ASN1_parse_dump(BIO *bp,const unsigned char *pp,long len,int indent,int dump);
OPENSSL_EXPORT const char *ASN1_tag2str(int tag);