380 lines
12 KiB
C
380 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 cb(int ok, X509_STORE_CTX *ctx);
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static int check(X509_STORE *ctx, char *file,
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STACK_OF(X509) *uchain, STACK_OF(X509) *tchain,
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STACK_OF(X509_CRL) *crls, ENGINE *e, int show_chain);
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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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char *CApath = NULL, *CAfile = NULL;
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char *untfile = NULL, *trustfile = NULL, *crlfile = NULL;
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STACK_OF(X509) *untrusted = NULL, *trusted = NULL;
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STACK_OF(X509_CRL) *crls = 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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int crl_download = 0, show_chain = 0;
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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(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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} else if (strcmp(*argv, "-CRLfile") == 0) {
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if (argc-- < 1)
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goto end;
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crlfile = *(++argv);
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} else if (strcmp(*argv, "-crl_download") == 0)
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crl_download = 1;
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else if (strcmp(*argv, "-show_chain") == 0)
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show_chain = 1;
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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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untrusted = load_certs(bio_err, untfile, FORMAT_PEM,
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NULL, e, "untrusted certificates");
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if (!untrusted)
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goto end;
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}
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if (trustfile) {
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trusted = load_certs(bio_err, trustfile, FORMAT_PEM,
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NULL, e, "trusted certificates");
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if (!trusted)
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goto end;
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}
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if (crlfile) {
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crls = load_crls(bio_err, crlfile, FORMAT_PEM, NULL, e, "other CRLs");
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if (!crls)
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goto end;
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}
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if (crl_download)
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store_setup_crl_download(cert_ctx);
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ret = 0;
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if (argc < 1) {
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if (1 !=
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check(cert_ctx, NULL, untrusted, trusted, crls, e, show_chain))
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ret = -1;
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} else {
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for (i = 0; i < argc; i++)
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if (1 !=
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check(cert_ctx, argv[i], untrusted, trusted, crls, e,
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show_chain))
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ret = -1;
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}
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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] [-trusted_first] [-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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BIO_printf(bio_err, "recognized verify names:\n");
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for (i = 0; i < X509_VERIFY_PARAM_get_count(); i++) {
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const X509_VERIFY_PARAM *vptmp;
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vptmp = X509_VERIFY_PARAM_get0(i);
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BIO_printf(bio_err, "\t%-10s\n",
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X509_VERIFY_PARAM_get0_name(vptmp));
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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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sk_X509_CRL_pop_free(crls, X509_CRL_free);
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apps_shutdown();
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OPENSSL_EXIT(ret < 0 ? 2 : ret);
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}
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static int check(X509_STORE *ctx, char *file,
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STACK_OF(X509) *uchain, STACK_OF(X509) *tchain,
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STACK_OF(X509_CRL) *crls, ENGINE *e, int show_chain)
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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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STACK_OF(X509) *chain = NULL;
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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 (crls)
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X509_STORE_CTX_set0_crls(csc, crls);
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i = X509_verify_cert(csc);
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if (i > 0 && show_chain)
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chain = X509_STORE_CTX_get1_chain(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 (chain) {
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printf("Chain:\n");
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for (i = 0; i < sk_X509_num(chain); i++) {
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X509 *cert = sk_X509_value(chain, i);
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printf("depth=%d: ", i);
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X509_NAME_print_ex_fp(stdout,
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X509_get_subject_name(cert),
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0, XN_FLAG_ONELINE);
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printf("\n");
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}
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sk_X509_pop_free(chain, X509_free);
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}
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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 int cb(int ok, X509_STORE_CTX *ctx)
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{
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int cert_error = X509_STORE_CTX_get_error(ctx);
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X509 *current_cert = X509_STORE_CTX_get_current_cert(ctx);
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if (!ok) {
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if (current_cert) {
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X509_NAME_print_ex_fp(stdout,
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X509_get_subject_name(current_cert),
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0, XN_FLAG_ONELINE);
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printf("\n");
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}
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printf("%serror %d at %d depth lookup:%s\n",
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X509_STORE_CTX_get0_parent_ctx(ctx) ? "[CRL path]" : "",
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cert_error,
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X509_STORE_CTX_get_error_depth(ctx),
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X509_verify_cert_error_string(cert_error));
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switch (cert_error) {
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case X509_V_ERR_NO_EXPLICIT_POLICY:
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policies_print(NULL, ctx);
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case X509_V_ERR_CERT_HAS_EXPIRED:
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/*
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* since we are just checking the certificates, it is ok if they
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* are self signed. But we should still warn the user.
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*/
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case X509_V_ERR_DEPTH_ZERO_SELF_SIGNED_CERT:
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/* Continue after extension errors too */
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case X509_V_ERR_INVALID_CA:
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case X509_V_ERR_INVALID_NON_CA:
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case X509_V_ERR_PATH_LENGTH_EXCEEDED:
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case X509_V_ERR_INVALID_PURPOSE:
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case X509_V_ERR_CRL_HAS_EXPIRED:
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case X509_V_ERR_CRL_NOT_YET_VALID:
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case X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION:
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ok = 1;
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}
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return ok;
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}
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if (cert_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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