377 lines
12 KiB
C
377 lines
12 KiB
C
/* apps/verify.c */
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/* 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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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "apps.h"
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#include <openssl/bio.h>
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#include <openssl/err.h>
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#include <openssl/x509.h>
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#include <openssl/x509v3.h>
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#include <openssl/pem.h>
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#undef PROG
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#define PROG verify_main
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static int MS_CALLBACK cb(int ok, X509_STORE_CTX *ctx);
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static int check(X509_STORE *ctx, char *file, STACK_OF(X509) *uchain,
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STACK_OF(X509) *tchain, int purpose, ENGINE *e);
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static STACK_OF(X509) *load_untrusted(char *file);
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static int v_verbose = 0, vflags = 0;
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int MAIN(int, char **);
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int MAIN(int argc, char **argv)
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{
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ENGINE *e = NULL;
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int i, ret = 1, badarg = 0;
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int purpose = -1;
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char *CApath = NULL, *CAfile = NULL;
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char *untfile = NULL, *trustfile = NULL;
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STACK_OF(X509) *untrusted = NULL, *trusted = NULL;
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X509_STORE *cert_ctx = NULL;
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X509_LOOKUP *lookup = NULL;
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X509_VERIFY_PARAM *vpm = NULL;
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#ifndef OPENSSL_NO_ENGINE
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char *engine = NULL;
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#endif
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cert_ctx = X509_STORE_new();
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if (cert_ctx == NULL)
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goto end;
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X509_STORE_set_verify_cb_func(cert_ctx, cb);
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ERR_load_crypto_strings();
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apps_startup();
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if (bio_err == NULL)
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if ((bio_err = BIO_new(BIO_s_file())) != NULL)
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BIO_set_fp(bio_err, stderr, BIO_NOCLOSE | BIO_FP_TEXT);
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if (!load_config(bio_err, NULL))
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goto end;
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argc--;
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argv++;
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for (;;) {
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if (argc >= 1) {
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if (strcmp(*argv, "-CApath") == 0) {
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if (argc-- < 1)
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goto end;
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CApath = *(++argv);
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} else if (strcmp(*argv, "-CAfile") == 0) {
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if (argc-- < 1)
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goto end;
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CAfile = *(++argv);
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} else if (args_verify(&argv, &argc, &badarg, bio_err, &vpm)) {
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if (badarg)
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goto end;
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continue;
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} else if (strcmp(*argv, "-untrusted") == 0) {
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if (argc-- < 1)
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goto end;
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untfile = *(++argv);
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} else if (strcmp(*argv, "-trusted") == 0) {
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if (argc-- < 1)
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goto end;
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trustfile = *(++argv);
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}
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#ifndef OPENSSL_NO_ENGINE
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else if (strcmp(*argv, "-engine") == 0) {
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if (--argc < 1)
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goto end;
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engine = *(++argv);
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}
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#endif
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else if (strcmp(*argv, "-help") == 0)
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goto end;
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else if (strcmp(*argv, "-verbose") == 0)
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v_verbose = 1;
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else if (argv[0][0] == '-')
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goto end;
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else
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break;
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argc--;
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argv++;
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} else
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break;
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}
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#ifndef OPENSSL_NO_ENGINE
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e = setup_engine(bio_err, engine, 0);
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#endif
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if (vpm)
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X509_STORE_set1_param(cert_ctx, vpm);
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lookup = X509_STORE_add_lookup(cert_ctx, X509_LOOKUP_file());
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if (lookup == NULL)
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abort();
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if (CAfile) {
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i = X509_LOOKUP_load_file(lookup, CAfile, X509_FILETYPE_PEM);
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if (!i) {
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BIO_printf(bio_err, "Error loading file %s\n", CAfile);
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ERR_print_errors(bio_err);
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goto end;
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}
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} else
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X509_LOOKUP_load_file(lookup, NULL, X509_FILETYPE_DEFAULT);
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lookup = X509_STORE_add_lookup(cert_ctx, X509_LOOKUP_hash_dir());
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if (lookup == NULL)
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abort();
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if (CApath) {
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i = X509_LOOKUP_add_dir(lookup, CApath, X509_FILETYPE_PEM);
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if (!i) {
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BIO_printf(bio_err, "Error loading directory %s\n", CApath);
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ERR_print_errors(bio_err);
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goto end;
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}
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} else
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X509_LOOKUP_add_dir(lookup, NULL, X509_FILETYPE_DEFAULT);
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ERR_clear_error();
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if (untfile) {
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if (!(untrusted = load_untrusted(untfile))) {
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BIO_printf(bio_err, "Error loading untrusted file %s\n", untfile);
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ERR_print_errors(bio_err);
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goto end;
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}
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}
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if (trustfile) {
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if (!(trusted = load_untrusted(trustfile))) {
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BIO_printf(bio_err, "Error loading untrusted file %s\n",
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trustfile);
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ERR_print_errors(bio_err);
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goto end;
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}
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}
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if (argc < 1)
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check(cert_ctx, NULL, untrusted, trusted, purpose, e);
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else
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for (i = 0; i < argc; i++)
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check(cert_ctx, argv[i], untrusted, trusted, purpose, e);
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ret = 0;
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end:
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if (ret == 1) {
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BIO_printf(bio_err,
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"usage: verify [-verbose] [-CApath path] [-CAfile file] [-purpose purpose] [-crl_check]");
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#ifndef OPENSSL_NO_ENGINE
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BIO_printf(bio_err, " [-engine e]");
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#endif
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BIO_printf(bio_err, " cert1 cert2 ...\n");
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BIO_printf(bio_err, "recognized usages:\n");
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for (i = 0; i < X509_PURPOSE_get_count(); i++) {
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X509_PURPOSE *ptmp;
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ptmp = X509_PURPOSE_get0(i);
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BIO_printf(bio_err, "\t%-10s\t%s\n",
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X509_PURPOSE_get0_sname(ptmp),
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X509_PURPOSE_get0_name(ptmp));
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}
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}
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if (vpm)
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X509_VERIFY_PARAM_free(vpm);
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if (cert_ctx != NULL)
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X509_STORE_free(cert_ctx);
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sk_X509_pop_free(untrusted, X509_free);
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sk_X509_pop_free(trusted, X509_free);
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apps_shutdown();
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OPENSSL_EXIT(ret);
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}
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static int check(X509_STORE *ctx, char *file, STACK_OF(X509) *uchain,
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STACK_OF(X509) *tchain, int purpose, ENGINE *e)
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{
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X509 *x = NULL;
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int i = 0, ret = 0;
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X509_STORE_CTX *csc;
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x = load_cert(bio_err, file, FORMAT_PEM, NULL, e, "certificate file");
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if (x == NULL)
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goto end;
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fprintf(stdout, "%s: ", (file == NULL) ? "stdin" : file);
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csc = X509_STORE_CTX_new();
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if (csc == NULL) {
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ERR_print_errors(bio_err);
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goto end;
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}
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X509_STORE_set_flags(ctx, vflags);
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if (!X509_STORE_CTX_init(csc, ctx, x, uchain)) {
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ERR_print_errors(bio_err);
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goto end;
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}
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if (tchain)
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X509_STORE_CTX_trusted_stack(csc, tchain);
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if (purpose >= 0)
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X509_STORE_CTX_set_purpose(csc, purpose);
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i = X509_verify_cert(csc);
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X509_STORE_CTX_free(csc);
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ret = 0;
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end:
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if (i > 0) {
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fprintf(stdout, "OK\n");
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ret = 1;
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} else
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ERR_print_errors(bio_err);
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if (x != NULL)
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X509_free(x);
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return (ret);
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}
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static STACK_OF(X509) *load_untrusted(char *certfile)
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{
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STACK_OF(X509_INFO) *sk = NULL;
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STACK_OF(X509) *stack = NULL, *ret = NULL;
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BIO *in = NULL;
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X509_INFO *xi;
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if (!(stack = sk_X509_new_null())) {
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BIO_printf(bio_err, "memory allocation failure\n");
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goto end;
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}
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if (!(in = BIO_new_file(certfile, "r"))) {
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BIO_printf(bio_err, "error opening the file, %s\n", certfile);
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goto end;
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}
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/* This loads from a file, a stack of x509/crl/pkey sets */
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if (!(sk = PEM_X509_INFO_read_bio(in, NULL, NULL, NULL))) {
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BIO_printf(bio_err, "error reading the file, %s\n", certfile);
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goto end;
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}
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/* scan over it and pull out the certs */
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while (sk_X509_INFO_num(sk)) {
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xi = sk_X509_INFO_shift(sk);
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if (xi->x509 != NULL) {
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sk_X509_push(stack, xi->x509);
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xi->x509 = NULL;
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}
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X509_INFO_free(xi);
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}
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if (!sk_X509_num(stack)) {
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BIO_printf(bio_err, "no certificates in file, %s\n", certfile);
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sk_X509_free(stack);
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goto end;
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}
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ret = stack;
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end:
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BIO_free(in);
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sk_X509_INFO_free(sk);
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return (ret);
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}
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static int MS_CALLBACK cb(int ok, X509_STORE_CTX *ctx)
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{
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char buf[256];
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if (!ok) {
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if (ctx->current_cert) {
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X509_NAME_oneline(X509_get_subject_name(ctx->current_cert), buf,
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sizeof buf);
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printf("%s\n", buf);
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}
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printf("error %d at %d depth lookup:%s\n", ctx->error,
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ctx->error_depth, X509_verify_cert_error_string(ctx->error));
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if (ctx->error == X509_V_ERR_CERT_HAS_EXPIRED)
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ok = 1;
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/*
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* since we are just checking the certificates, it is ok if they are
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* self signed. But we should still warn the user.
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*/
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if (ctx->error == X509_V_ERR_DEPTH_ZERO_SELF_SIGNED_CERT)
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ok = 1;
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/* Continue after extension errors too */
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if (ctx->error == X509_V_ERR_INVALID_CA)
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ok = 1;
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if (ctx->error == X509_V_ERR_INVALID_NON_CA)
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ok = 1;
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if (ctx->error == X509_V_ERR_PATH_LENGTH_EXCEEDED)
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ok = 1;
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if (ctx->error == X509_V_ERR_INVALID_PURPOSE)
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ok = 1;
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if (ctx->error == X509_V_ERR_DEPTH_ZERO_SELF_SIGNED_CERT)
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ok = 1;
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if (ctx->error == X509_V_ERR_CRL_HAS_EXPIRED)
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ok = 1;
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if (ctx->error == X509_V_ERR_CRL_NOT_YET_VALID)
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ok = 1;
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if (ctx->error == X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION)
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ok = 1;
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if (ctx->error == X509_V_ERR_NO_EXPLICIT_POLICY)
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policies_print(NULL, ctx);
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return ok;
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}
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if ((ctx->error == X509_V_OK) && (ok == 2))
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policies_print(NULL, ctx);
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if (!v_verbose)
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ERR_clear_error();
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return (ok);
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}
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