| /* 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, int purpose, ENGINE *e); |
| static STACK_OF(X509) *load_untrusted(char *file); |
| 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; |
| int purpose = -1; |
| char *CApath=NULL,*CAfile=NULL; |
| char *untfile = NULL, *trustfile = NULL; |
| STACK_OF(X509) *untrusted = NULL, *trusted = 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_func(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); |
| } |
| #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) { |
| if(!(untrusted = load_untrusted(untfile))) { |
| BIO_printf(bio_err, "Error loading untrusted file %s\n", untfile); |
| ERR_print_errors(bio_err); |
| goto end; |
| } |
| } |
| |
| if(trustfile) { |
| if(!(trusted = load_untrusted(trustfile))) { |
| BIO_printf(bio_err, "Error loading untrusted file %s\n", trustfile); |
| ERR_print_errors(bio_err); |
| goto end; |
| } |
| } |
| |
| if (argc < 1) check(cert_ctx, NULL, untrusted, trusted, purpose, e); |
| else |
| for (i=0; i<argc; i++) |
| check(cert_ctx,argv[i], untrusted, trusted, purpose, e); |
| ret=0; |
| end: |
| if (ret == 1) { |
| BIO_printf(bio_err,"usage: verify [-verbose] [-CApath path] [-CAfile file] [-purpose purpose] [-crl_check]"); |
| #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); |
| apps_shutdown(); |
| OPENSSL_EXIT(ret); |
| } |
| |
| static int check(X509_STORE *ctx, char *file, STACK_OF(X509) *uchain, STACK_OF(X509) *tchain, int purpose, 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(purpose >= 0) X509_STORE_CTX_set_purpose(csc, purpose); |
| 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 STACK_OF(X509) *load_untrusted(char *certfile) |
| { |
| STACK_OF(X509_INFO) *sk=NULL; |
| STACK_OF(X509) *stack=NULL, *ret=NULL; |
| BIO *in=NULL; |
| X509_INFO *xi; |
| |
| if(!(stack = sk_X509_new_null())) { |
| BIO_printf(bio_err,"memory allocation failure\n"); |
| goto end; |
| } |
| |
| if(!(in=BIO_new_file(certfile, "r"))) { |
| BIO_printf(bio_err,"error opening the file, %s\n",certfile); |
| goto end; |
| } |
| |
| /* This loads from a file, a stack of x509/crl/pkey sets */ |
| if(!(sk=PEM_X509_INFO_read_bio(in,NULL,NULL,NULL))) { |
| BIO_printf(bio_err,"error reading the file, %s\n",certfile); |
| goto end; |
| } |
| |
| /* scan over it and pull out the certs */ |
| while (sk_X509_INFO_num(sk)) |
| { |
| xi=sk_X509_INFO_shift(sk); |
| if (xi->x509 != NULL) |
| { |
| sk_X509_push(stack,xi->x509); |
| xi->x509=NULL; |
| } |
| X509_INFO_free(xi); |
| } |
| if(!sk_X509_num(stack)) { |
| BIO_printf(bio_err,"no certificates in file, %s\n",certfile); |
| sk_X509_free(stack); |
| goto end; |
| } |
| ret=stack; |
| end: |
| BIO_free(in); |
| sk_X509_INFO_free(sk); |
| return(ret); |
| } |
| |
| static int MS_CALLBACK cb(int ok, X509_STORE_CTX *ctx) |
| { |
| char buf[256]; |
| |
| if (!ok) |
| { |
| if (ctx->current_cert) |
| { |
| X509_NAME_oneline( |
| X509_get_subject_name(ctx->current_cert),buf, |
| sizeof buf); |
| printf("%s\n",buf); |
| } |
| printf("error %d at %d depth lookup:%s\n",ctx->error, |
| ctx->error_depth, |
| X509_verify_cert_error_string(ctx->error)); |
| if (ctx->error == X509_V_ERR_CERT_HAS_EXPIRED) ok=1; |
| /* since we are just checking the certificates, it is |
| * ok if they are self signed. But we should still warn |
| * the user. |
| */ |
| if (ctx->error == X509_V_ERR_DEPTH_ZERO_SELF_SIGNED_CERT) ok=1; |
| /* Continue after extension errors too */ |
| if (ctx->error == X509_V_ERR_INVALID_CA) ok=1; |
| if (ctx->error == X509_V_ERR_INVALID_NON_CA) ok=1; |
| if (ctx->error == X509_V_ERR_PATH_LENGTH_EXCEEDED) ok=1; |
| if (ctx->error == X509_V_ERR_INVALID_PURPOSE) ok=1; |
| if (ctx->error == X509_V_ERR_DEPTH_ZERO_SELF_SIGNED_CERT) ok=1; |
| if (ctx->error == X509_V_ERR_CRL_HAS_EXPIRED) ok=1; |
| if (ctx->error == X509_V_ERR_CRL_NOT_YET_VALID) ok=1; |
| if (ctx->error == X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION) ok=1; |
| |
| if (ctx->error == X509_V_ERR_NO_EXPLICIT_POLICY) |
| policies_print(NULL, ctx); |
| return ok; |
| |
| } |
| if ((ctx->error == X509_V_OK) && (ok == 2)) |
| policies_print(NULL, ctx); |
| if (!v_verbose) |
| ERR_clear_error(); |
| return(ok); |
| } |
