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-rw-r--r--usr.bin/openssl/verify.c339
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diff --git a/usr.bin/openssl/verify.c b/usr.bin/openssl/verify.c
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+/* $OpenBSD: verify.c,v 1.1 2014/08/26 17:47:25 jsing Exp $ */
+/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
+ * All rights reserved.
+ *
+ * This package is an SSL implementation written
+ * by Eric Young (eay@cryptsoft.com).
+ * The implementation was written so as to conform with Netscapes SSL.
+ *
+ * This library is free for commercial and non-commercial use as long as
+ * the following conditions are aheared to. The following conditions
+ * apply to all code found in this distribution, be it the RC4, RSA,
+ * lhash, DES, etc., code; not just the SSL code. The SSL documentation
+ * included with this distribution is covered by the same copyright terms
+ * except that the holder is Tim Hudson (tjh@cryptsoft.com).
+ *
+ * Copyright remains Eric Young's, and as such any Copyright notices in
+ * the code are not to be removed.
+ * If this package is used in a product, Eric Young should be given attribution
+ * as the author of the parts of the library used.
+ * This can be in the form of a textual message at program startup or
+ * in documentation (online or textual) provided with the package.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ * must display the following acknowledgement:
+ * "This product includes cryptographic software written by
+ * Eric Young (eay@cryptsoft.com)"
+ * The word 'cryptographic' can be left out if the rouines from the library
+ * being used are not cryptographic related :-).
+ * 4. If you include any Windows specific code (or a derivative thereof) from
+ * the apps directory (application code) you must include an acknowledgement:
+ * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
+ *
+ * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+ * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+ * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *
+ * The licence and distribution terms for any publically available version or
+ * derivative of this code cannot be changed. i.e. this code cannot simply be
+ * copied and put under another distribution licence
+ * [including the GNU Public Licence.]
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "apps.h"
+
+#include <openssl/bio.h>
+#include <openssl/err.h>
+#include <openssl/pem.h>
+#include <openssl/x509.h>
+#include <openssl/x509v3.h>
+
+static int cb(int ok, X509_STORE_CTX * ctx);
+static int check(X509_STORE * ctx, char *file, STACK_OF(X509) * uchain,
+ STACK_OF(X509) * tchain, STACK_OF(X509_CRL) * crls, ENGINE * e);
+static int v_verbose = 0, vflags = 0;
+
+int verify_main(int, char **);
+
+int
+verify_main(int argc, char **argv)
+{
+ ENGINE *e = NULL;
+ int i, ret = 1, badarg = 0;
+ char *CApath = NULL, *CAfile = NULL;
+ char *untfile = NULL, *trustfile = NULL, *crlfile = NULL;
+ STACK_OF(X509) * untrusted = NULL, *trusted = NULL;
+ STACK_OF(X509_CRL) * crls = NULL;
+ X509_STORE *cert_ctx = NULL;
+ X509_LOOKUP *lookup = NULL;
+ X509_VERIFY_PARAM *vpm = NULL;
+#ifndef OPENSSL_NO_ENGINE
+ char *engine = NULL;
+#endif
+
+ cert_ctx = X509_STORE_new();
+ if (cert_ctx == NULL)
+ goto end;
+ X509_STORE_set_verify_cb(cert_ctx, cb);
+
+ ERR_load_crypto_strings();
+
+ argc--;
+ argv++;
+ for (;;) {
+ if (argc >= 1) {
+ if (strcmp(*argv, "-CApath") == 0) {
+ if (argc-- < 1)
+ goto end;
+ CApath = *(++argv);
+ } else if (strcmp(*argv, "-CAfile") == 0) {
+ if (argc-- < 1)
+ goto end;
+ CAfile = *(++argv);
+ } else if (args_verify(&argv, &argc, &badarg, bio_err,
+ &vpm)) {
+ if (badarg)
+ goto end;
+ continue;
+ } else if (strcmp(*argv, "-untrusted") == 0) {
+ if (argc-- < 1)
+ goto end;
+ untfile = *(++argv);
+ } else if (strcmp(*argv, "-trusted") == 0) {
+ if (argc-- < 1)
+ goto end;
+ trustfile = *(++argv);
+ } else if (strcmp(*argv, "-CRLfile") == 0) {
+ if (argc-- < 1)
+ goto end;
+ crlfile = *(++argv);
+ }
+#ifndef OPENSSL_NO_ENGINE
+ else if (strcmp(*argv, "-engine") == 0) {
+ if (--argc < 1)
+ goto end;
+ engine = *(++argv);
+ }
+#endif
+ else if (strcmp(*argv, "-help") == 0)
+ goto end;
+ else if (strcmp(*argv, "-verbose") == 0)
+ v_verbose = 1;
+ else if (argv[0][0] == '-')
+ goto end;
+ else
+ break;
+ argc--;
+ argv++;
+ } else
+ break;
+ }
+
+#ifndef OPENSSL_NO_ENGINE
+ e = setup_engine(bio_err, engine, 0);
+#endif
+
+ if (vpm)
+ X509_STORE_set1_param(cert_ctx, vpm);
+
+ lookup = X509_STORE_add_lookup(cert_ctx, X509_LOOKUP_file());
+ if (lookup == NULL)
+ abort();
+ if (CAfile) {
+ i = X509_LOOKUP_load_file(lookup, CAfile, X509_FILETYPE_PEM);
+ if (!i) {
+ BIO_printf(bio_err, "Error loading file %s\n", CAfile);
+ ERR_print_errors(bio_err);
+ goto end;
+ }
+ } else
+ X509_LOOKUP_load_file(lookup, NULL, X509_FILETYPE_DEFAULT);
+
+ lookup = X509_STORE_add_lookup(cert_ctx, X509_LOOKUP_hash_dir());
+ if (lookup == NULL)
+ abort();
+ if (CApath) {
+ i = X509_LOOKUP_add_dir(lookup, CApath, X509_FILETYPE_PEM);
+ if (!i) {
+ BIO_printf(bio_err, "Error loading directory %s\n", CApath);
+ ERR_print_errors(bio_err);
+ goto end;
+ }
+ } else
+ X509_LOOKUP_add_dir(lookup, NULL, X509_FILETYPE_DEFAULT);
+
+ ERR_clear_error();
+
+ if (untfile) {
+ untrusted = load_certs(bio_err, untfile, FORMAT_PEM,
+ NULL, e, "untrusted certificates");
+ if (!untrusted)
+ goto end;
+ }
+ if (trustfile) {
+ trusted = load_certs(bio_err, trustfile, FORMAT_PEM,
+ NULL, e, "trusted certificates");
+ if (!trusted)
+ goto end;
+ }
+ if (crlfile) {
+ crls = load_crls(bio_err, crlfile, FORMAT_PEM,
+ NULL, e, "other CRLs");
+ if (!crls)
+ goto end;
+ }
+ ret = 0;
+ if (argc < 1) {
+ if (1 != check(cert_ctx, NULL, untrusted, trusted, crls, e))
+ ret = -1;
+ } else {
+ for (i = 0; i < argc; i++)
+ if (1 != check(cert_ctx, argv[i], untrusted, trusted,
+ crls, e))
+ ret = -1;
+ }
+
+end:
+ if (ret == 1) {
+ BIO_printf(bio_err, "usage: verify [-verbose] [-CApath path] [-CAfile file] [-purpose purpose] [-crl_check]");
+ BIO_printf(bio_err, " [-attime timestamp]");
+#ifndef OPENSSL_NO_ENGINE
+ BIO_printf(bio_err, " [-engine e]");
+#endif
+ BIO_printf(bio_err, " cert1 cert2 ...\n");
+
+ BIO_printf(bio_err, "recognized usages:\n");
+ for (i = 0; i < X509_PURPOSE_get_count(); i++) {
+ X509_PURPOSE *ptmp;
+ ptmp = X509_PURPOSE_get0(i);
+ BIO_printf(bio_err, "\t%-10s\t%s\n",
+ X509_PURPOSE_get0_sname(ptmp),
+ X509_PURPOSE_get0_name(ptmp));
+ }
+ }
+ if (vpm)
+ X509_VERIFY_PARAM_free(vpm);
+ if (cert_ctx != NULL)
+ X509_STORE_free(cert_ctx);
+ sk_X509_pop_free(untrusted, X509_free);
+ sk_X509_pop_free(trusted, X509_free);
+ sk_X509_CRL_pop_free(crls, X509_CRL_free);
+
+ return (ret < 0 ? 2 : ret);
+}
+
+static int
+check(X509_STORE * ctx, char *file, STACK_OF(X509) * uchain,
+ STACK_OF(X509) * tchain, STACK_OF(X509_CRL) * crls, ENGINE * e)
+{
+ X509 *x = NULL;
+ int i = 0, ret = 0;
+ X509_STORE_CTX *csc;
+
+ x = load_cert(bio_err, file, FORMAT_PEM, NULL, e, "certificate file");
+ if (x == NULL)
+ goto end;
+ fprintf(stdout, "%s: ", (file == NULL) ? "stdin" : file);
+
+ csc = X509_STORE_CTX_new();
+ if (csc == NULL) {
+ ERR_print_errors(bio_err);
+ goto end;
+ }
+ X509_STORE_set_flags(ctx, vflags);
+ if (!X509_STORE_CTX_init(csc, ctx, x, uchain)) {
+ ERR_print_errors(bio_err);
+ goto end;
+ }
+ if (tchain)
+ X509_STORE_CTX_trusted_stack(csc, tchain);
+ if (crls)
+ X509_STORE_CTX_set0_crls(csc, crls);
+ i = X509_verify_cert(csc);
+ X509_STORE_CTX_free(csc);
+
+ ret = 0;
+
+end:
+ if (i > 0) {
+ fprintf(stdout, "OK\n");
+ ret = 1;
+ } else
+ ERR_print_errors(bio_err);
+ if (x != NULL)
+ X509_free(x);
+
+ return (ret);
+}
+
+static int
+cb(int ok, X509_STORE_CTX * ctx)
+{
+ int cert_error = X509_STORE_CTX_get_error(ctx);
+ X509 *current_cert = X509_STORE_CTX_get_current_cert(ctx);
+
+ if (!ok) {
+ if (current_cert) {
+ X509_NAME_print_ex_fp(stdout,
+ X509_get_subject_name(current_cert),
+ 0, XN_FLAG_ONELINE);
+ printf("\n");
+ }
+ printf("%serror %d at %d depth lookup:%s\n",
+ X509_STORE_CTX_get0_parent_ctx(ctx) ? "[CRL path]" : "",
+ cert_error,
+ X509_STORE_CTX_get_error_depth(ctx),
+ X509_verify_cert_error_string(cert_error));
+ switch (cert_error) {
+ case X509_V_ERR_NO_EXPLICIT_POLICY:
+ policies_print(NULL, ctx);
+ case X509_V_ERR_CERT_HAS_EXPIRED:
+
+ /*
+ * since we are just checking the certificates, it is
+ * ok if they are self signed. But we should still
+ * warn the user.
+ */
+
+ case X509_V_ERR_DEPTH_ZERO_SELF_SIGNED_CERT:
+ /* Continue after extension errors too */
+ case X509_V_ERR_INVALID_CA:
+ case X509_V_ERR_INVALID_NON_CA:
+ case X509_V_ERR_PATH_LENGTH_EXCEEDED:
+ case X509_V_ERR_INVALID_PURPOSE:
+ case X509_V_ERR_CRL_HAS_EXPIRED:
+ case X509_V_ERR_CRL_NOT_YET_VALID:
+ case X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION:
+ ok = 1;
+
+ }
+
+ return ok;
+
+ }
+ if (cert_error == X509_V_OK && ok == 2)
+ policies_print(NULL, ctx);
+ if (!v_verbose)
+ ERR_clear_error();
+ return (ok);
+}
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