+ {"verbose", OPT_VERBOSE, '-',
+ "Print extra information about the operations being performed."},
+ {"nameopt", OPT_NAMEOPT, 's', "Certificate subject/issuer name printing options"},
+
+ OPT_SECTION("Certificate chain"),
+ {"trusted", OPT_TRUSTED, '<', "A file of trusted certificates"},
+ {"CAfile", OPT_CAFILE, '<', "A file of trusted certificates"},
+ {"CApath", OPT_CAPATH, '/', "A directory of files with trusted certificates"},
+ {"CAstore", OPT_CASTORE, ':', "URI to a store of trusted certificates"},
+ {"no-CAfile", OPT_NOCAFILE, '-',
+ "Do not load the default trusted certificates file"},
+ {"no-CApath", OPT_NOCAPATH, '-',
+ "Do not load trusted certificates from the default directory"},
+ {"no-CAstore", OPT_NOCASTORE, '-',
+ "Do not load trusted certificates from the default certificates store"},
+ {"untrusted", OPT_UNTRUSTED, '<', "A file of untrusted certificates"},
+ {"CRLfile", OPT_CRLFILE, '<',
+ "File containing one or more CRL's (in PEM format) to load"},
+ {"crl_download", OPT_CRL_DOWNLOAD, '-',
+ "Try downloading CRL information for certificates via their CDP entries"},
+ {"show_chain", OPT_SHOW_CHAIN, '-',
+ "Display information about the certificate chain"},
+
+ OPT_V_OPTIONS,
+ {"vfyopt", OPT_VFYOPT, 's', "Verification parameter in n:v form"},
+
+ OPT_PROV_OPTIONS,
+
+ OPT_PARAMETERS(),
+ {"cert", 0, 0, "Certificate(s) to verify (optional; stdin used otherwise)"},
+ {NULL}
+};
+
+int verify_main(int argc, char **argv)
+{
+ ENGINE *e = NULL;
+ STACK_OF(X509) *untrusted = NULL, *trusted = NULL;
+ STACK_OF(X509_CRL) *crls = NULL;
+ STACK_OF(OPENSSL_STRING) *vfyopts = NULL;
+ X509_STORE *store = NULL;
+ X509_VERIFY_PARAM *vpm = NULL;
+ const char *prog, *CApath = NULL, *CAfile = NULL, *CAstore = NULL;
+ int noCApath = 0, noCAfile = 0, noCAstore = 0;
+ 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:
+ opthelp:
+ BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
+ goto end;
+ case OPT_HELP:
+ opt_help(verify_options);
+ BIO_printf(bio_err, "\nRecognized certificate chain purposes:\n");
+ for (i = 0; i < X509_PURPOSE_get_count(); i++) {
+ X509_PURPOSE *ptmp = X509_PURPOSE_get0(i);
+
+ BIO_printf(bio_err, " %-15s %s\n",
+ X509_PURPOSE_get0_sname(ptmp),
+ X509_PURPOSE_get0_name(ptmp));
+ }
+
+ BIO_printf(bio_err, "Recognized certificate policy names:\n");
+ for (i = 0; i < X509_VERIFY_PARAM_get_count(); i++) {
+ const X509_VERIFY_PARAM *vptmp = X509_VERIFY_PARAM_get0(i);
+
+ BIO_printf(bio_err, " %s\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_CASTORE:
+ CAstore = opt_arg();
+ break;
+ case OPT_NOCAPATH:
+ noCApath = 1;
+ break;
+ case OPT_NOCAFILE:
+ noCAfile = 1;
+ break;
+ case OPT_NOCASTORE:
+ noCAstore = 1;
+ break;
+ case OPT_UNTRUSTED:
+ /* Zero or more times */
+ if (!load_certs(opt_arg(), 0, &untrusted, NULL,
+ "untrusted certificates"))
+ goto end;
+ break;
+ case OPT_TRUSTED:
+ /* Zero or more times */
+ noCAfile = 1;
+ noCApath = 1;
+ noCAstore = 1;
+ if (!load_certs(opt_arg(), 0, &trusted, NULL, "trusted certificates"))
+ goto end;
+ break;
+ case OPT_CRLFILE:
+ /* Zero or more times */
+ if (!load_crls(opt_arg(), &crls, NULL, "other CRLs"))
+ goto end;
+ break;
+ case OPT_CRL_DOWNLOAD:
+ crl_download = 1;
+ break;
+ case OPT_ENGINE:
+ if ((e = setup_engine(opt_arg(), 0)) == NULL) {
+ /* Failure message already displayed */
+ goto end;
+ }
+ break;
+ case OPT_SHOW_CHAIN:
+ show_chain = 1;
+ break;
+ case OPT_NAMEOPT:
+ if (!set_nameopt(opt_arg()))
+ goto end;
+ break;
+ case OPT_VFYOPT:
+ if (!vfyopts)
+ vfyopts = sk_OPENSSL_STRING_new_null();
+ if (!vfyopts || !sk_OPENSSL_STRING_push(vfyopts, opt_arg()))
+ goto opthelp;
+ break;
+ case OPT_VERBOSE:
+ v_verbose = 1;
+ break;
+ case OPT_PROV_CASES:
+ if (!opt_provider(o))
+ goto end;
+ break;
+ }
+ }
+
+ /* Extra arguments are certificates to verify. */
+ argc = opt_num_rest();
+ argv = opt_rest();
+
+ if (trusted != NULL
+ && (CAfile != NULL || CApath != NULL || CAstore != NULL)) {
+ BIO_printf(bio_err,
+ "%s: Cannot use -trusted with -CAfile, -CApath or -CAstore\n",
+ prog);
+ goto end;
+ }
+
+ if ((store = setup_verify(CAfile, noCAfile, CApath, noCApath,
+ CAstore, noCAstore)) == NULL)
+ goto end;
+ X509_STORE_set_verify_cb(store, cb);
+
+ if (vpmtouched)
+ X509_STORE_set1_param(store, vpm);
+
+ ERR_clear_error();
+
+ if (crl_download)
+ store_setup_crl_download(store);
+
+ ret = 0;
+ if (argc < 1) {
+ if (check(store, NULL, untrusted, trusted, crls, show_chain,
+ vfyopts) != 1)
+ ret = -1;
+ } else {
+ for (i = 0; i < argc; i++)
+ if (check(store, argv[i], untrusted, trusted, crls, show_chain,
+ vfyopts) != 1)
+ ret = -1;
+ }
+
+ end:
+ X509_VERIFY_PARAM_free(vpm);
+ X509_STORE_free(store);
+ OSSL_STACK_OF_X509_free(untrusted);
+ OSSL_STACK_OF_X509_free(trusted);
+ sk_X509_CRL_pop_free(crls, X509_CRL_free);
+ sk_OPENSSL_STRING_free(vfyopts);
+ release_engine(e);
+ return (ret < 0 ? 2 : ret);
+}
+
+static int check(X509_STORE *ctx, const char *file,
+ STACK_OF(X509) *uchain, STACK_OF(X509) *tchain,
+ STACK_OF(X509_CRL) *crls, int show_chain,
+ STACK_OF(OPENSSL_STRING) *opts)
+{
+ X509 *x = NULL;
+ int i = 0, ret = 0;
+ X509_STORE_CTX *csc;
+ STACK_OF(X509) *chain = NULL;
+ int num_untrusted;
+
+ x = load_cert(file, FORMAT_UNDEF, "certificate file");
+ if (x == NULL)
+ goto end;
+
+ if (opts != NULL) {
+ for (i = 0; i < sk_OPENSSL_STRING_num(opts); i++) {
+ char *opt = sk_OPENSSL_STRING_value(opts, i);
+ if (x509_ctrl_string(x, opt) <= 0) {
+ BIO_printf(bio_err, "parameter error \"%s\"\n", opt);
+ ERR_print_errors(bio_err);
+ X509_free(x);
+ return 0;
+ }
+ }
+ }
+
+ csc = X509_STORE_CTX_new();
+ if (csc == NULL) {
+ BIO_printf(bio_err, "error %s: X.509 store context allocation failed\n",
+ (file == NULL) ? "stdin" : file);
+ goto end;
+ }
+
+ X509_STORE_set_flags(ctx, vflags);
+ if (!X509_STORE_CTX_init(csc, ctx, x, uchain)) {
+ X509_STORE_CTX_free(csc);
+ BIO_printf(bio_err,
+ "error %s: X.509 store context initialization failed\n",
+ (file == NULL) ? "stdin" : file);
+ goto end;
+ }
+ if (tchain != NULL)
+ X509_STORE_CTX_set0_trusted_stack(csc, tchain);
+ if (crls != NULL)
+ X509_STORE_CTX_set0_crls(csc, crls);
+ i = X509_verify_cert(csc);
+ if (i > 0 && X509_STORE_CTX_get_error(csc) == X509_V_OK) {
+ BIO_printf(bio_out, "%s: OK\n", (file == NULL) ? "stdin" : file);
+ ret = 1;
+ if (show_chain) {
+ int j;
+
+ chain = X509_STORE_CTX_get1_chain(csc);
+ num_untrusted = X509_STORE_CTX_get_num_untrusted(csc);
+ BIO_printf(bio_out, "Chain:\n");
+ for (j = 0; j < sk_X509_num(chain); j++) {
+ X509 *cert = sk_X509_value(chain, j);
+ BIO_printf(bio_out, "depth=%d: ", j);
+ X509_NAME_print_ex_fp(stdout,
+ X509_get_subject_name(cert),
+ 0, get_nameopt());
+ if (j < num_untrusted)
+ BIO_printf(bio_out, " (untrusted)");
+ BIO_printf(bio_out, "\n");
+ }
+ OSSL_STACK_OF_X509_free(chain);
+ }
+ } else {
+ BIO_printf(bio_err,
+ "error %s: verification failed\n",
+ (file == NULL) ? "stdin" : file);
+ }
+ X509_STORE_CTX_free(csc);
+
+ end:
+ if (i <= 0)
+ ERR_print_errors(bio_err);
+ 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 != NULL) {
+ X509_NAME_print_ex(bio_err,
+ X509_get_subject_name(current_cert),
+ 0, get_nameopt());
+ 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));