| /* 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> |
| |
| 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, int show_chain); |
| static int v_verbose = 0, vflags = 0; |
| |
| typedef enum OPTION_choice { |
| OPT_ERR = -1, OPT_EOF = 0, OPT_HELP, |
| OPT_ENGINE, OPT_CAPATH, OPT_CAFILE, OPT_UNTRUSTED, OPT_TRUSTED, |
| OPT_CRLFILE, OPT_CRL_DOWNLOAD, OPT_SHOW_CHAIN, |
| OPT_V_ENUM, |
| OPT_VERBOSE |
| } OPTION_CHOICE; |
| |
| OPTIONS verify_options[] = { |
| {OPT_HELP_STR, 1, '-', "Usage: %s [options] cert.pem...\n"}, |
| {OPT_HELP_STR, 1, '-', "Valid options are:\n"}, |
| {"help", OPT_HELP, '-', "Display this summary"}, |
| {"verbose", OPT_VERBOSE, '-'}, |
| {"CApath", OPT_CAPATH, '/'}, |
| {"CAfile", OPT_CAFILE, '<'}, |
| {"untrusted", OPT_UNTRUSTED, '<'}, |
| {"trusted", OPT_TRUSTED, '<'}, |
| {"CRLfile", OPT_CRLFILE, '<'}, |
| {"crl_download", OPT_CRL_DOWNLOAD, '-'}, |
| {"show_chain", OPT_SHOW_CHAIN, '-'}, |
| #ifndef OPENSSL_NO_ENGINE |
| {"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"}, |
| #endif |
| OPT_V_OPTIONS, |
| {NULL} |
| }; |
| |
| int verify_main(int argc, char **argv) |
| { |
| ENGINE *e = NULL; |
| STACK_OF(X509) *untrusted = NULL, *trusted = NULL; |
| STACK_OF(X509_CRL) *crls = NULL; |
| X509_STORE *store = NULL; |
| X509_VERIFY_PARAM *vpm = NULL; |
| char *prog, *CApath = NULL, *CAfile = NULL; |
| char *untfile = NULL, *trustfile = NULL, *crlfile = NULL; |
| int vpmtouched = 0, crl_download = 0, show_chain = 0, i = 0, ret = 1; |
| OPTION_CHOICE o; |
| |
| if ((vpm = X509_VERIFY_PARAM_new()) == NULL) |
| goto end; |
| |
| prog = opt_init(argc, argv, verify_options); |
| while ((o = opt_next()) != OPT_EOF) { |
| switch (o) { |
| case OPT_EOF: |
| case OPT_ERR: |
| BIO_printf(bio_err, "%s: Use -help for summary.\n", prog); |
| goto end; |
| case OPT_HELP: |
| opt_help(verify_options); |
| 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)); |
| } |
| |
| BIO_printf(bio_err, "Recognized verify names:\n"); |
| for (i = 0; i < X509_VERIFY_PARAM_get_count(); i++) { |
| const X509_VERIFY_PARAM *vptmp; |
| vptmp = X509_VERIFY_PARAM_get0(i); |
| BIO_printf(bio_err, "\t%-10s\n", |
| X509_VERIFY_PARAM_get0_name(vptmp)); |
| } |
| ret = 0; |
| goto end; |
| case OPT_V_CASES: |
| if (!opt_verify(o, vpm)) |
| goto end; |
| vpmtouched++; |
| break; |
| case OPT_CAPATH: |
| CApath = opt_arg(); |
| break; |
| case OPT_CAFILE: |
| CAfile = opt_arg(); |
| break; |
| case OPT_UNTRUSTED: |
| untfile = opt_arg(); |
| break; |
| case OPT_TRUSTED: |
| trustfile = opt_arg(); |
| break; |
| case OPT_CRLFILE: |
| crlfile = opt_arg(); |
| break; |
| case OPT_CRL_DOWNLOAD: |
| crl_download = 1; |
| break; |
| case OPT_SHOW_CHAIN: |
| show_chain = 1; |
| break; |
| case OPT_ENGINE: |
| e = setup_engine(opt_arg(), 0); |
| break; |
| case OPT_VERBOSE: |
| v_verbose = 1; |
| break; |
| } |
| } |
| argc = opt_num_rest(); |
| argv = opt_rest(); |
| |
| if (!(store = setup_verify(CAfile, CApath))) |
| goto end; |
| X509_STORE_set_verify_cb(store, cb); |
| |
| if (vpmtouched) |
| X509_STORE_set1_param(store, vpm); |
| |
| ERR_clear_error(); |
| |
| if (untfile) { |
| untrusted = load_certs(untfile, FORMAT_PEM, |
| NULL, e, "untrusted certificates"); |
| if (!untrusted) |
| goto end; |
| } |
| |
| if (trustfile) { |
| trusted = load_certs(trustfile, FORMAT_PEM, |
| NULL, e, "trusted certificates"); |
| if (!trusted) |
| goto end; |
| } |
| |
| if (crlfile) { |
| crls = load_crls(crlfile, FORMAT_PEM, NULL, e, "other CRLs"); |
| if (!crls) |
| goto end; |
| } |
| |
| if (crl_download) |
| store_setup_crl_download(store); |
| |
| ret = 0; |
| if (argc < 1) { |
| if (check(store, NULL, untrusted, trusted, crls, e, show_chain) != 1) |
| ret = -1; |
| } else { |
| for (i = 0; i < argc; i++) |
| if (check(store, argv[i], untrusted, trusted, crls, e, |
| show_chain) != 1) |
| ret = -1; |
| } |
| |
| end: |
| X509_VERIFY_PARAM_free(vpm); |
| X509_STORE_free(store); |
| 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, int show_chain) |
| { |
| X509 *x = NULL; |
| int i = 0, ret = 0; |
| X509_STORE_CTX *csc; |
| STACK_OF(X509) *chain = NULL; |
| |
| x = load_cert(file, FORMAT_PEM, NULL, e, "certificate file"); |
| if (x == NULL) |
| goto end; |
| printf("%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); |
| if (i > 0 && show_chain) |
| chain = X509_STORE_CTX_get1_chain(csc); |
| X509_STORE_CTX_free(csc); |
| |
| ret = 0; |
| end: |
| if (i > 0) { |
| printf("OK\n"); |
| ret = 1; |
| } else |
| ERR_print_errors(bio_err); |
| if (chain) { |
| printf("Chain:\n"); |
| for (i = 0; i < sk_X509_num(chain); i++) { |
| X509 *cert = sk_X509_value(chain, i); |
| printf("depth=%d: ", i); |
| X509_NAME_print_ex_fp(stdout, |
| X509_get_subject_name(cert), |
| 0, XN_FLAG_ONELINE); |
| printf("\n"); |
| } |
| sk_X509_pop_free(chain, X509_free); |
| } |
| 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(bio_err, |
| X509_get_subject_name(current_cert), |
| 0, XN_FLAG_ONELINE); |
| BIO_printf(bio_err, "\n"); |
| } |
| BIO_printf(bio_err, "%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(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(ctx); |
| if (!v_verbose) |
| ERR_clear_error(); |
| return (ok); |
| } |
