| /* apps/verify.c */ |
| /* 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/x509.h> |
| #include <openssl/x509v3.h> |
| #include <openssl/pem.h> |
| |
| #undef PROG |
| #define PROG verify_main |
| |
| static int MS_CALLBACK 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 MAIN(int, char **); |
| |
| int 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(); |
| |
| apps_startup(); |
| |
| if (bio_err == NULL) |
| if ((bio_err = BIO_new(BIO_s_file())) != NULL) |
| BIO_set_fp(bio_err, stderr, BIO_NOCLOSE | BIO_FP_TEXT); |
| |
| if (!load_config(bio_err, NULL)) |
| goto end; |
| |
| 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, " [-no_alt_chains] [-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); |
| apps_shutdown(); |
| OPENSSL_EXIT(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 MS_CALLBACK 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); |
| } |
