545 lines
17 KiB
C
545 lines
17 KiB
C
/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
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* All rights reserved.
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*
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* This package is an SSL implementation written
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* by Eric Young (eay@cryptsoft.com).
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* The implementation was written so as to conform with Netscapes SSL.
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*
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* This library is free for commercial and non-commercial use as long as
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* the following conditions are aheared to. The following conditions
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* apply to all code found in this distribution, be it the RC4, RSA,
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* lhash, DES, etc., code; not just the SSL code. The SSL documentation
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* included with this distribution is covered by the same copyright terms
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* except that the holder is Tim Hudson (tjh@cryptsoft.com).
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*
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* Copyright remains Eric Young's, and as such any Copyright notices in
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* the code are not to be removed.
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* If this package is used in a product, Eric Young should be given attribution
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* as the author of the parts of the library used.
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* This can be in the form of a textual message at program startup or
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* in documentation (online or textual) provided with the package.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* "This product includes cryptographic software written by
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* Eric Young (eay@cryptsoft.com)"
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* The word 'cryptographic' can be left out if the rouines from the library
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* being used are not cryptographic related :-).
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* 4. If you include any Windows specific code (or a derivative thereof) from
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* the apps directory (application code) you must include an acknowledgement:
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* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
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*
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* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* The licence and distribution terms for any publically available version or
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* derivative of this code cannot be changed. i.e. this code cannot simply be
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* copied and put under another distribution licence
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* [including the GNU Public Licence.] */
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#include <ctype.h>
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#include <openssl/asn1.h>
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#include <openssl/bio.h>
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#include <openssl/digest.h>
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#include <openssl/err.h>
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#include <openssl/evp.h>
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#include <openssl/mem.h>
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#include <openssl/obj.h>
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#include <openssl/x509.h>
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#include <openssl/x509v3.h>
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#include "internal.h"
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#ifndef OPENSSL_NO_FP_API
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int X509_print_ex_fp(FILE *fp, X509 *x, unsigned long nmflag,
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unsigned long cflag)
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{
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BIO *b = BIO_new_fp(fp, BIO_NOCLOSE);
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if (b == NULL) {
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OPENSSL_PUT_ERROR(X509, ERR_R_BUF_LIB);
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return 0;
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}
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int ret = X509_print_ex(b, x, nmflag, cflag);
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BIO_free(b);
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return ret;
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}
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int X509_print_fp(FILE *fp, X509 *x)
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{
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return X509_print_ex_fp(fp, x, XN_FLAG_COMPAT, X509_FLAG_COMPAT);
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}
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#endif
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int X509_print(BIO *bp, X509 *x)
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{
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return X509_print_ex(bp, x, XN_FLAG_COMPAT, X509_FLAG_COMPAT);
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}
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int X509_print_ex(BIO *bp, X509 *x, unsigned long nmflags,
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unsigned long cflag)
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{
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long l;
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int ret = 0, i;
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char *m = NULL, mlch = ' ';
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int nmindent = 0;
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X509_CINF *ci;
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ASN1_INTEGER *bs;
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EVP_PKEY *pkey = NULL;
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const char *neg;
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if ((nmflags & XN_FLAG_SEP_MASK) == XN_FLAG_SEP_MULTILINE) {
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mlch = '\n';
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nmindent = 12;
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}
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if (nmflags == X509_FLAG_COMPAT)
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nmindent = 16;
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ci = x->cert_info;
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if (!(cflag & X509_FLAG_NO_HEADER)) {
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if (BIO_write(bp, "Certificate:\n", 13) <= 0)
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goto err;
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if (BIO_write(bp, " Data:\n", 10) <= 0)
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goto err;
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}
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if (!(cflag & X509_FLAG_NO_VERSION)) {
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l = X509_get_version(x);
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if (BIO_printf(bp, "%8sVersion: %lu (0x%lx)\n", "", l + 1, l) <= 0)
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goto err;
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}
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if (!(cflag & X509_FLAG_NO_SERIAL)) {
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if (BIO_write(bp, " Serial Number:", 22) <= 0)
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goto err;
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bs = X509_get_serialNumber(x);
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if (bs->length < (int)sizeof(long)
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|| (bs->length == sizeof(long) && (bs->data[0] & 0x80) == 0)) {
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l = ASN1_INTEGER_get(bs);
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if (bs->type == V_ASN1_NEG_INTEGER) {
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l = -l;
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neg = "-";
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} else
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neg = "";
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if (BIO_printf(bp, " %s%lu (%s0x%lx)\n", neg, l, neg, l) <= 0)
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goto err;
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} else {
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neg = (bs->type == V_ASN1_NEG_INTEGER) ? " (Negative)" : "";
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if (BIO_printf(bp, "\n%12s%s", "", neg) <= 0)
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goto err;
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for (i = 0; i < bs->length; i++) {
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if (BIO_printf(bp, "%02x%c", bs->data[i],
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((i + 1 == bs->length) ? '\n' : ':')) <= 0)
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goto err;
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}
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}
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}
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if (!(cflag & X509_FLAG_NO_SIGNAME)) {
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if (X509_signature_print(bp, ci->signature, NULL) <= 0)
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goto err;
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}
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if (!(cflag & X509_FLAG_NO_ISSUER)) {
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if (BIO_printf(bp, " Issuer:%c", mlch) <= 0)
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goto err;
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if (X509_NAME_print_ex(bp, X509_get_issuer_name(x), nmindent, nmflags)
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< 0)
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goto err;
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if (BIO_write(bp, "\n", 1) <= 0)
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goto err;
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}
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if (!(cflag & X509_FLAG_NO_VALIDITY)) {
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if (BIO_write(bp, " Validity\n", 17) <= 0)
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goto err;
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if (BIO_write(bp, " Not Before: ", 24) <= 0)
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goto err;
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if (!ASN1_TIME_print(bp, X509_get_notBefore(x)))
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goto err;
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if (BIO_write(bp, "\n Not After : ", 25) <= 0)
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goto err;
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if (!ASN1_TIME_print(bp, X509_get_notAfter(x)))
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goto err;
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if (BIO_write(bp, "\n", 1) <= 0)
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goto err;
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}
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if (!(cflag & X509_FLAG_NO_SUBJECT)) {
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if (BIO_printf(bp, " Subject:%c", mlch) <= 0)
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goto err;
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if (X509_NAME_print_ex
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(bp, X509_get_subject_name(x), nmindent, nmflags) < 0)
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goto err;
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if (BIO_write(bp, "\n", 1) <= 0)
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goto err;
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}
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if (!(cflag & X509_FLAG_NO_PUBKEY)) {
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if (BIO_write(bp, " Subject Public Key Info:\n", 33) <= 0)
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goto err;
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if (BIO_printf(bp, "%12sPublic Key Algorithm: ", "") <= 0)
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goto err;
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if (i2a_ASN1_OBJECT(bp, ci->key->algor->algorithm) <= 0)
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goto err;
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if (BIO_puts(bp, "\n") <= 0)
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goto err;
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pkey = X509_get_pubkey(x);
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if (pkey == NULL) {
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BIO_printf(bp, "%12sUnable to load Public Key\n", "");
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ERR_print_errors(bp);
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} else {
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EVP_PKEY_print_public(bp, pkey, 16, NULL);
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EVP_PKEY_free(pkey);
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}
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}
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if (!(cflag & X509_FLAG_NO_IDS)) {
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if (ci->issuerUID) {
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if (BIO_printf(bp, "%8sIssuer Unique ID: ", "") <= 0)
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goto err;
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if (!X509_signature_dump(bp, ci->issuerUID, 12))
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goto err;
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}
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if (ci->subjectUID) {
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if (BIO_printf(bp, "%8sSubject Unique ID: ", "") <= 0)
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goto err;
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if (!X509_signature_dump(bp, ci->subjectUID, 12))
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goto err;
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}
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}
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if (!(cflag & X509_FLAG_NO_EXTENSIONS))
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X509V3_extensions_print(bp, "X509v3 extensions",
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ci->extensions, cflag, 8);
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if (!(cflag & X509_FLAG_NO_SIGDUMP)) {
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if (X509_signature_print(bp, x->sig_alg, x->signature) <= 0)
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goto err;
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}
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if (!(cflag & X509_FLAG_NO_AUX)) {
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if (!X509_CERT_AUX_print(bp, x->aux, 0))
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goto err;
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}
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ret = 1;
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err:
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if (m != NULL)
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OPENSSL_free(m);
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return (ret);
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}
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int X509_ocspid_print(BIO *bp, X509 *x)
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{
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unsigned char *der = NULL;
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unsigned char *dertmp;
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int derlen;
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int i;
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unsigned char SHA1md[SHA_DIGEST_LENGTH];
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/*
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* display the hash of the subject as it would appear in OCSP requests
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*/
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if (BIO_printf(bp, " Subject OCSP hash: ") <= 0)
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goto err;
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derlen = i2d_X509_NAME(x->cert_info->subject, NULL);
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if ((der = dertmp = (unsigned char *)OPENSSL_malloc(derlen)) == NULL)
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goto err;
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i2d_X509_NAME(x->cert_info->subject, &dertmp);
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if (!EVP_Digest(der, derlen, SHA1md, NULL, EVP_sha1(), NULL))
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goto err;
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for (i = 0; i < SHA_DIGEST_LENGTH; i++) {
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if (BIO_printf(bp, "%02X", SHA1md[i]) <= 0)
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goto err;
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}
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OPENSSL_free(der);
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der = NULL;
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/*
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* display the hash of the public key as it would appear in OCSP requests
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*/
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if (BIO_printf(bp, "\n Public key OCSP hash: ") <= 0)
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goto err;
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if (!EVP_Digest(x->cert_info->key->public_key->data,
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x->cert_info->key->public_key->length,
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SHA1md, NULL, EVP_sha1(), NULL))
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goto err;
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for (i = 0; i < SHA_DIGEST_LENGTH; i++) {
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if (BIO_printf(bp, "%02X", SHA1md[i]) <= 0)
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goto err;
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}
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BIO_printf(bp, "\n");
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return (1);
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err:
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if (der != NULL)
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OPENSSL_free(der);
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return (0);
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}
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int X509_signature_print(BIO *bp, const X509_ALGOR *sigalg,
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const ASN1_STRING *sig)
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{
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if (BIO_puts(bp, " Signature Algorithm: ") <= 0)
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return 0;
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if (i2a_ASN1_OBJECT(bp, sigalg->algorithm) <= 0)
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return 0;
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/* RSA-PSS signatures have parameters to print. */
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int sig_nid = OBJ_obj2nid(sigalg->algorithm);
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if (sig_nid == NID_rsassaPss &&
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!x509_print_rsa_pss_params(bp, sigalg, 9, 0)) {
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return 0;
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}
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if (sig)
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return X509_signature_dump(bp, sig, 9);
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else if (BIO_puts(bp, "\n") <= 0)
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return 0;
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return 1;
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}
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int ASN1_STRING_print(BIO *bp, const ASN1_STRING *v)
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{
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int i, n;
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char buf[80];
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const char *p;
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if (v == NULL)
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return (0);
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n = 0;
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p = (const char *)v->data;
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for (i = 0; i < v->length; i++) {
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if ((p[i] > '~') || ((p[i] < ' ') &&
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(p[i] != '\n') && (p[i] != '\r')))
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buf[n] = '.';
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else
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buf[n] = p[i];
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n++;
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if (n >= 80) {
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if (BIO_write(bp, buf, n) <= 0)
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return (0);
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n = 0;
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}
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}
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if (n > 0)
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if (BIO_write(bp, buf, n) <= 0)
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return (0);
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return (1);
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}
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int ASN1_TIME_print(BIO *bp, const ASN1_TIME *tm)
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{
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if (tm->type == V_ASN1_UTCTIME)
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return ASN1_UTCTIME_print(bp, tm);
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if (tm->type == V_ASN1_GENERALIZEDTIME)
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return ASN1_GENERALIZEDTIME_print(bp, tm);
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BIO_write(bp, "Bad time value", 14);
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return (0);
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}
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static const char *const mon[12] = {
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"Jan", "Feb", "Mar", "Apr", "May", "Jun",
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"Jul", "Aug", "Sep", "Oct", "Nov", "Dec"
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};
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int ASN1_GENERALIZEDTIME_print(BIO *bp, const ASN1_GENERALIZEDTIME *tm)
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{
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char *v;
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int gmt = 0;
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int i;
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int y = 0, M = 0, d = 0, h = 0, m = 0, s = 0;
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char *f = NULL;
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int f_len = 0;
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i = tm->length;
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v = (char *)tm->data;
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if (i < 12)
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goto err;
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if (v[i - 1] == 'Z')
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gmt = 1;
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for (i = 0; i < 12; i++)
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if ((v[i] > '9') || (v[i] < '0'))
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goto err;
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y = (v[0] - '0') * 1000 + (v[1] - '0') * 100 + (v[2] - '0') * 10 + (v[3] -
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'0');
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M = (v[4] - '0') * 10 + (v[5] - '0');
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if ((M > 12) || (M < 1))
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goto err;
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d = (v[6] - '0') * 10 + (v[7] - '0');
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h = (v[8] - '0') * 10 + (v[9] - '0');
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m = (v[10] - '0') * 10 + (v[11] - '0');
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if (tm->length >= 14 &&
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(v[12] >= '0') && (v[12] <= '9') &&
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(v[13] >= '0') && (v[13] <= '9')) {
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s = (v[12] - '0') * 10 + (v[13] - '0');
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/* Check for fractions of seconds. */
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if (tm->length >= 15 && v[14] == '.') {
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int l = tm->length;
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f = &v[14]; /* The decimal point. */
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f_len = 1;
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while (14 + f_len < l && f[f_len] >= '0' && f[f_len] <= '9')
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++f_len;
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}
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}
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if (BIO_printf(bp, "%s %2d %02d:%02d:%02d%.*s %d%s",
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mon[M - 1], d, h, m, s, f_len, f, y,
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(gmt) ? " GMT" : "") <= 0)
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return (0);
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else
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return (1);
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err:
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BIO_write(bp, "Bad time value", 14);
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return (0);
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}
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// consume_two_digits is a helper function for ASN1_UTCTIME_print. If |*v|,
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// assumed to be |*len| bytes long, has two leading digits, updates |*out| with
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// their value, updates |v| and |len|, and returns one. Otherwise, returns
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// zero.
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static int consume_two_digits(int* out, const char **v, int *len) {
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if (*len < 2|| !isdigit((*v)[0]) || !isdigit((*v)[1])) {
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return 0;
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}
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*out = ((*v)[0] - '0') * 10 + ((*v)[1] - '0');
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*len -= 2;
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*v += 2;
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return 1;
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}
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// consume_zulu_timezone is a helper function for ASN1_UTCTIME_print. If |*v|,
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// assumed to be |*len| bytes long, starts with "Z" then it updates |*v| and
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// |*len| and returns one. Otherwise returns zero.
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static int consume_zulu_timezone(const char **v, int *len) {
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if (*len == 0 || (*v)[0] != 'Z') {
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return 0;
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}
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*len -= 1;
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*v += 1;
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return 1;
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}
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int ASN1_UTCTIME_print(BIO *bp, const ASN1_UTCTIME *tm) {
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const char *v = (const char *)tm->data;
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int len = tm->length;
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int Y = 0, M = 0, D = 0, h = 0, m = 0, s = 0;
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// YYMMDDhhmm are required to be present.
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if (!consume_two_digits(&Y, &v, &len) ||
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!consume_two_digits(&M, &v, &len) ||
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!consume_two_digits(&D, &v, &len) ||
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!consume_two_digits(&h, &v, &len) ||
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!consume_two_digits(&m, &v, &len)) {
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goto err;
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}
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// https://tools.ietf.org/html/rfc5280, section 4.1.2.5.1, requires seconds
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// to be present, but historically this code has forgiven its absence.
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consume_two_digits(&s, &v, &len);
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// https://tools.ietf.org/html/rfc5280, section 4.1.2.5.1, specifies this
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// interpretation of the year.
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if (Y < 50) {
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Y += 2000;
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} else {
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Y += 1900;
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}
|
|
if (M > 12 || M == 0) {
|
|
goto err;
|
|
}
|
|
if (D > 31 || D == 0) {
|
|
goto err;
|
|
}
|
|
if (h > 23 || m > 59 || s > 60) {
|
|
goto err;
|
|
}
|
|
|
|
// https://tools.ietf.org/html/rfc5280, section 4.1.2.5.1, requires the "Z"
|
|
// to be present, but historically this code has forgiven its absence.
|
|
const int is_gmt = consume_zulu_timezone(&v, &len);
|
|
|
|
// https://tools.ietf.org/html/rfc5280, section 4.1.2.5.1, does not permit
|
|
// the specification of timezones using the +hhmm / -hhmm syntax, which is
|
|
// the only other thing that might legitimately be found at the end.
|
|
if (len) {
|
|
goto err;
|
|
}
|
|
|
|
return BIO_printf(bp, "%s %2d %02d:%02d:%02d %d%s", mon[M - 1], D, h, m, s, Y,
|
|
is_gmt ? " GMT" : "") > 0;
|
|
|
|
err:
|
|
BIO_write(bp, "Bad time value", 14);
|
|
return 0;
|
|
}
|
|
|
|
int X509_NAME_print(BIO *bp, X509_NAME *name, int obase)
|
|
{
|
|
char *s, *c, *b;
|
|
int ret = 0, l, i;
|
|
|
|
l = 80 - 2 - obase;
|
|
|
|
b = X509_NAME_oneline(name, NULL, 0);
|
|
if (!b)
|
|
return 0;
|
|
if (!*b) {
|
|
OPENSSL_free(b);
|
|
return 1;
|
|
}
|
|
s = b + 1; /* skip the first slash */
|
|
|
|
c = s;
|
|
for (;;) {
|
|
if (((*s == '/') &&
|
|
((s[1] >= 'A') && (s[1] <= 'Z') && ((s[2] == '=') ||
|
|
((s[2] >= 'A')
|
|
&& (s[2] <= 'Z')
|
|
&& (s[3] == '='))
|
|
))) || (*s == '\0')) {
|
|
i = s - c;
|
|
if (BIO_write(bp, c, i) != i)
|
|
goto err;
|
|
c = s + 1; /* skip following slash */
|
|
if (*s != '\0') {
|
|
if (BIO_write(bp, ", ", 2) != 2)
|
|
goto err;
|
|
}
|
|
l--;
|
|
}
|
|
if (*s == '\0')
|
|
break;
|
|
s++;
|
|
l--;
|
|
}
|
|
|
|
ret = 1;
|
|
if (0) {
|
|
err:
|
|
OPENSSL_PUT_ERROR(X509, ERR_R_BUF_LIB);
|
|
}
|
|
OPENSSL_free(b);
|
|
return (ret);
|
|
}
|