[thirdparty/openssl.git] / apps / verify.c

/*
 * Copyright 1995-2019 The OpenSSL Project Authors. All Rights Reserved.
 *
 * Licensed under the OpenSSL license (the "License").  You may not use
 * this file except in compliance with the License.  You can obtain a copy
 * in the file LICENSE in the source distribution or at
 * https://www.openssl.org/source/license.html
 */

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "apps.h"
#include "progs.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, const char *file,
                 STACK_OF(X509) *uchain, STACK_OF(X509) *tchain,
                 STACK_OF(X509_CRL) *crls, 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_NOCAPATH, OPT_NOCAFILE,
    OPT_UNTRUSTED, OPT_TRUSTED, OPT_CRLFILE, OPT_CRL_DOWNLOAD, OPT_SHOW_CHAIN,
    OPT_V_ENUM, OPT_NAMEOPT,
    OPT_VERBOSE
} OPTION_CHOICE;

const 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, '-',
        "Print extra information about the operations being performed."},
    {"CApath", OPT_CAPATH, '/', "A directory of trusted certificates"},
    {"CAfile", OPT_CAFILE, '<', "A file of trusted certificates"},
    {"no-CAfile", OPT_NOCAFILE, '-',
     "Do not load the default certificates file"},
    {"no-CApath", OPT_NOCAPATH, '-',
     "Do not load certificates from the default certificates directory"},
    {"untrusted", OPT_UNTRUSTED, '<', "A file of untrusted certificates"},
    {"trusted", OPT_TRUSTED, '<', "A file of trusted certificates"},
    {"CRLfile", OPT_CRLFILE, '<',
        "File containing one or more CRL's (in PEM format) to load"},
    {"crl_download", OPT_CRL_DOWNLOAD, '-',
        "Attempt to download CRL information for this certificate"},
    {"show_chain", OPT_SHOW_CHAIN, '-',
        "Display information about the certificate chain"},
    {"nameopt", OPT_NAMEOPT, 's', "Various certificate name options"},
    OPT_V_OPTIONS,
#ifndef OPENSSL_NO_ENGINE
    {"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"},
#endif
    {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;
    const char *prog, *CApath = NULL, *CAfile = NULL;
    int noCApath = 0, noCAfile = 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:
            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_NOCAPATH:
            noCApath = 1;
            break;
        case OPT_NOCAFILE:
            noCAfile = 1;
            break;
        case OPT_UNTRUSTED:
            /* Zero or more times */
            if (!load_certs(opt_arg(), &untrusted, FORMAT_PEM, NULL,
                            "untrusted certificates"))
                goto end;
            break;
        case OPT_TRUSTED:
            /* Zero or more times */
            noCAfile = 1;
            noCApath = 1;
            if (!load_certs(opt_arg(), &trusted, FORMAT_PEM, NULL,
                            "trusted certificates"))
                goto end;
            break;
        case OPT_CRLFILE:
            /* Zero or more times */
            if (!load_crls(opt_arg(), &crls, FORMAT_PEM, 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_VERBOSE:
            v_verbose = 1;
            break;
        }
    }
    argc = opt_num_rest();
    argv = opt_rest();
    if (trusted != NULL && (CAfile || CApath)) {
        BIO_printf(bio_err,
                   "%s: Cannot use -trusted with -CAfile or -CApath\n",
                   prog);
        goto end;
    }

    if ((store = setup_verify(CAfile, CApath, noCAfile, noCApath)) == 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) != 1)
            ret = -1;
    } else {
        for (i = 0; i < argc; i++)
            if (check(store, argv[i], untrusted, trusted, crls,
                      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);
    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)
{
    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_PEM, "certificate file");
    if (x == NULL)
        goto end;

    csc = X509_STORE_CTX_new();
    if (csc == NULL) {
        printf("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);
        printf("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) {
        printf("%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);
            printf("Chain:\n");
            for (j = 0; j < sk_X509_num(chain); j++) {
                X509 *cert = sk_X509_value(chain, j);
                printf("depth=%d: ", j);
                X509_NAME_print_ex_fp(stdout,
                                      X509_get_subject_name(cert),
                                      0, get_nameopt());
                if (j < num_untrusted)
                    printf(" (untrusted)");
                printf("\n");
            }
            sk_X509_pop_free(chain, X509_free);
        }
    } else {
        printf("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));

        /*
         * Pretend that some errors are ok, so they don't stop further
         * processing of the certificate chain.  Setting ok = 1 does this.
         * After X509_verify_cert() is done, we verify that there were
         * no actual errors, even if the returned value was positive.
         */
        switch (cert_error) {
        case X509_V_ERR_NO_EXPLICIT_POLICY:
            policies_print(ctx);
            /* fall thru */
        case X509_V_ERR_CERT_HAS_EXPIRED:
            /* Continue even if the leaf is a self signed cert */
        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;
}
Commit	Line	Data
846e33c7	1	/*
72a7a702	2	* Copyright 1995-2019 The OpenSSL Project Authors. All Rights Reserved.
d02b48c6	3	*
846e33c7 RS	4	* Licensed under the OpenSSL license (the "License"). You may not use
	5	* this file except in compliance with the License. You can obtain a copy
	6	* in the file LICENSE in the source distribution or at
	7	* https://www.openssl.org/source/license.html
d02b48c6 RE	8	*/
	9
	10	#include <stdio.h>
	11	#include <stdlib.h>
	12	#include <string.h>
	13	#include "apps.h"
dab2cd68	14	#include "progs.h"
ec577822 BM	15	#include <openssl/bio.h>
	16	#include <openssl/err.h>
	17	#include <openssl/x509.h>
d4cec6a1	18	#include <openssl/x509v3.h>
ec577822	19	#include <openssl/pem.h>
d02b48c6	20
6d23cf97	21	static int cb(int ok, X509_STORE_CTX *ctx);
cc696296	22	static int check(X509_STORE ctx, const char file,
0f113f3e	23	STACK_OF(X509) uchain, STACK_OF(X509) tchain,
a773b52a	24	STACK_OF(X509_CRL) *crls, int show_chain);
0f113f3e	25	static int v_verbose = 0, vflags = 0;
d02b48c6	26
7e1b7485 RS	27	typedef enum OPTION_choice {
7e1b7485 RS	28	OPT_ERR = -1, OPT_EOF = 0, OPT_HELP,
2b6bcb70 MC	29	OPT_ENGINE, OPT_CAPATH, OPT_CAFILE, OPT_NOCAPATH, OPT_NOCAFILE,
2b6bcb70 MC	30	OPT_UNTRUSTED, OPT_TRUSTED, OPT_CRLFILE, OPT_CRL_DOWNLOAD, OPT_SHOW_CHAIN,
bd91e3c8	31	OPT_V_ENUM, OPT_NAMEOPT,
7e1b7485 RS	32	OPT_VERBOSE
	33	} OPTION_CHOICE;
	34
44c83ebd	35	const OPTIONS verify_options[] = {
7e1b7485 RS	36	{OPT_HELP_STR, 1, '-', "Usage: %s [options] cert.pem...\n"},
	37	{OPT_HELP_STR, 1, '-', "Valid options are:\n"},
	38	{"help", OPT_HELP, '-', "Display this summary"},
a64ba70d MC	39	{"verbose", OPT_VERBOSE, '-',
	40	"Print extra information about the operations being performed."},
	41	{"CApath", OPT_CAPATH, '/', "A directory of trusted certificates"},
	42	{"CAfile", OPT_CAFILE, '<', "A file of trusted certificates"},
2b6bcb70 MC	43	{"no-CAfile", OPT_NOCAFILE, '-',
	44	"Do not load the default certificates file"},
	45	{"no-CApath", OPT_NOCAPATH, '-',
	46	"Do not load certificates from the default certificates directory"},
a64ba70d	47	{"untrusted", OPT_UNTRUSTED, '<', "A file of untrusted certificates"},
5b89036c	48	{"trusted", OPT_TRUSTED, '<', "A file of trusted certificates"},
a64ba70d MC	49	{"CRLfile", OPT_CRLFILE, '<',
	50	"File containing one or more CRL's (in PEM format) to load"},
	51	{"crl_download", OPT_CRL_DOWNLOAD, '-',
	52	"Attempt to download CRL information for this certificate"},
	53	{"show_chain", OPT_SHOW_CHAIN, '-',
	54	"Display information about the certificate chain"},
ad39b31c	55	{"nameopt", OPT_NAMEOPT, 's', "Various certificate name options"},
9c3bcfa0	56	OPT_V_OPTIONS,
7e1b7485 RS	57	#ifndef OPENSSL_NO_ENGINE
	58	{"engine", OPT_ENGINE, 's', "Use engine, possibly a hardware device"},
	59	#endif
7e1b7485 RS	60	{NULL}
7e1b7485 RS	61	};
667ac4ec	62
7e1b7485	63	int verify_main(int argc, char **argv)
0f113f3e	64	{
dd1abd44	65	ENGINE *e = NULL;
0f113f3e MC	66	STACK_OF(X509) untrusted = NULL, trusted = NULL;
0f113f3e MC	67	STACK_OF(X509_CRL) *crls = NULL;
7e1b7485	68	X509_STORE *store = NULL;
0f113f3e	69	X509_VERIFY_PARAM *vpm = NULL;
cc696296	70	const char prog, CApath = NULL, *CAfile = NULL;
2b6bcb70	71	int noCApath = 0, noCAfile = 0;
7e1b7485 RS	72	int vpmtouched = 0, crl_download = 0, show_chain = 0, i = 0, ret = 1;
7e1b7485 RS	73	OPTION_CHOICE o;
d02b48c6	74
7e1b7485	75	if ((vpm = X509_VERIFY_PARAM_new()) == NULL)
0f113f3e	76	goto end;
0f113f3e	77
7e1b7485 RS	78	prog = opt_init(argc, argv, verify_options);
	79	while ((o = opt_next()) != OPT_EOF) {
	80	switch (o) {
	81	case OPT_EOF:
	82	case OPT_ERR:
	83	BIO_printf(bio_err, "%s: Use -help for summary.\n", prog);
	84	goto end;
	85	case OPT_HELP:
	86	opt_help(verify_options);
	87	BIO_printf(bio_err, "Recognized usages:\n");
	88	for (i = 0; i < X509_PURPOSE_get_count(); i++) {
	89	X509_PURPOSE *ptmp;
	90	ptmp = X509_PURPOSE_get0(i);
	91	BIO_printf(bio_err, "\t%-10s\t%s\n",
	92	X509_PURPOSE_get0_sname(ptmp),
	93	X509_PURPOSE_get0_name(ptmp));
	94	}
0f113f3e	95
7e1b7485 RS	96	BIO_printf(bio_err, "Recognized verify names:\n");
	97	for (i = 0; i < X509_VERIFY_PARAM_get_count(); i++) {
	98	const X509_VERIFY_PARAM *vptmp;
	99	vptmp = X509_VERIFY_PARAM_get0(i);
	100	BIO_printf(bio_err, "\t%-10s\n",
	101	X509_VERIFY_PARAM_get0_name(vptmp));
0f113f3e	102	}
7e1b7485 RS	103	ret = 0;
	104	goto end;
	105	case OPT_V_CASES:
	106	if (!opt_verify(o, vpm))
0f113f3e	107	goto end;
7e1b7485 RS	108	vpmtouched++;
	109	break;
	110	case OPT_CAPATH:
	111	CApath = opt_arg();
	112	break;
	113	case OPT_CAFILE:
	114	CAfile = opt_arg();
	115	break;
2b6bcb70 MC	116	case OPT_NOCAPATH:
	117	noCApath = 1;
	118	break;
	119	case OPT_NOCAFILE:
	120	noCAfile = 1;
	121	break;
7e1b7485	122	case OPT_UNTRUSTED:
feb2f53e	123	/* Zero or more times */
a773b52a	124	if (!load_certs(opt_arg(), &untrusted, FORMAT_PEM, NULL,
feb2f53e VD	125	"untrusted certificates"))
feb2f53e VD	126	goto end;
7e1b7485 RS	127	break;
7e1b7485 RS	128	case OPT_TRUSTED:
feb2f53e VD	129	/* Zero or more times */
	130	noCAfile = 1;
	131	noCApath = 1;
a773b52a	132	if (!load_certs(opt_arg(), &trusted, FORMAT_PEM, NULL,
feb2f53e VD	133	"trusted certificates"))
feb2f53e VD	134	goto end;
7e1b7485 RS	135	break;
7e1b7485 RS	136	case OPT_CRLFILE:
feb2f53e	137	/* Zero or more times */
a773b52a	138	if (!load_crls(opt_arg(), &crls, FORMAT_PEM, NULL,
feb2f53e VD	139	"other CRLs"))
feb2f53e VD	140	goto end;
7e1b7485 RS	141	break;
	142	case OPT_CRL_DOWNLOAD:
	143	crl_download = 1;
0f113f3e	144	break;
a773b52a	145	case OPT_ENGINE:
dd1abd44	146	if ((e = setup_engine(opt_arg(), 0)) == NULL) {
a773b52a RS	147	/* Failure message already displayed */
	148	goto end;
	149	}
	150	break;
7e1b7485 RS	151	case OPT_SHOW_CHAIN:
	152	show_chain = 1;
	153	break;
ad39b31c	154	case OPT_NAMEOPT:
b5c4209b	155	if (!set_nameopt(opt_arg()))
ad39b31c DB	156	goto end;
ad39b31c DB	157	break;
7e1b7485 RS	158	case OPT_VERBOSE:
	159	v_verbose = 1;
	160	break;
	161	}
0f113f3e	162	}
7e1b7485 RS	163	argc = opt_num_rest();
7e1b7485 RS	164	argv = opt_rest();
feb2f53e	165	if (trusted != NULL && (CAfile \|\| CApath)) {
5b89036c RS	166	BIO_printf(bio_err,
	167	"%s: Cannot use -trusted with -CAfile or -CApath\n",
	168	prog);
	169	goto end;
	170	}
d02b48c6	171
2b6bcb70	172	if ((store = setup_verify(CAfile, CApath, noCAfile, noCApath)) == NULL)
7e1b7485 RS	173	goto end;
7e1b7485 RS	174	X509_STORE_set_verify_cb(store, cb);
5270e702	175
7e1b7485 RS	176	if (vpmtouched)
7e1b7485 RS	177	X509_STORE_set1_param(store, vpm);
0f113f3e MC	178
	179	ERR_clear_error();
	180
0f113f3e	181	if (crl_download)
7e1b7485	182	store_setup_crl_download(store);
0f113f3e MC	183
	184	ret = 0;
	185	if (argc < 1) {
a773b52a	186	if (check(store, NULL, untrusted, trusted, crls, show_chain) != 1)
0f113f3e MC	187	ret = -1;
	188	} else {
	189	for (i = 0; i < argc; i++)
a773b52a	190	if (check(store, argv[i], untrusted, trusted, crls,
7e1b7485	191	show_chain) != 1)
0f113f3e MC	192	ret = -1;
	193	}
	194
	195	end:
222561fe RS	196	X509_VERIFY_PARAM_free(vpm);
222561fe RS	197	X509_STORE_free(store);
0f113f3e MC	198	sk_X509_pop_free(untrusted, X509_free);
	199	sk_X509_pop_free(trusted, X509_free);
	200	sk_X509_CRL_pop_free(crls, X509_CRL_free);
dd1abd44	201	release_engine(e);
7e1b7485	202	return (ret < 0 ? 2 : ret);
0f113f3e	203	}
d02b48c6	204
cc696296	205	static int check(X509_STORE ctx, const char file,
0f113f3e	206	STACK_OF(X509) uchain, STACK_OF(X509) tchain,
a773b52a	207	STACK_OF(X509_CRL) *crls, int show_chain)
0f113f3e MC	208	{
	209	X509 *x = NULL;
	210	int i = 0, ret = 0;
	211	X509_STORE_CTX *csc;
	212	STACK_OF(X509) *chain = NULL;
7f3f41d8	213	int num_untrusted;
0f113f3e	214
a773b52a	215	x = load_cert(file, FORMAT_PEM, "certificate file");
0f113f3e MC	216	if (x == NULL)
0f113f3e MC	217	goto end;
0f113f3e MC	218
	219	csc = X509_STORE_CTX_new();
	220	if (csc == NULL) {
63c6aa6b VD	221	printf("error %s: X.509 store context allocation failed\n",
63c6aa6b VD	222	(file == NULL) ? "stdin" : file);
0f113f3e MC	223	goto end;
0f113f3e MC	224	}
a392ef20	225
0f113f3e MC	226	X509_STORE_set_flags(ctx, vflags);
0f113f3e MC	227	if (!X509_STORE_CTX_init(csc, ctx, x, uchain)) {
aebd0e5c	228	X509_STORE_CTX_free(csc);
63c6aa6b VD	229	printf("error %s: X.509 store context initialization failed\n",
63c6aa6b VD	230	(file == NULL) ? "stdin" : file);
0f113f3e MC	231	goto end;
0f113f3e MC	232	}
2234212c	233	if (tchain != NULL)
f0e0fd51	234	X509_STORE_CTX_set0_trusted_stack(csc, tchain);
2234212c	235	if (crls != NULL)
0f113f3e MC	236	X509_STORE_CTX_set0_crls(csc, crls);
0f113f3e MC	237	i = X509_verify_cert(csc);
d9e309a6	238	if (i > 0 && X509_STORE_CTX_get_error(csc) == X509_V_OK) {
63c6aa6b	239	printf("%s: OK\n", (file == NULL) ? "stdin" : file);
480405e4	240	ret = 1;
63c6aa6b VD	241	if (show_chain) {
63c6aa6b VD	242	int j;
bb484020	243
63c6aa6b VD	244	chain = X509_STORE_CTX_get1_chain(csc);
	245	num_untrusted = X509_STORE_CTX_get_num_untrusted(csc);
	246	printf("Chain:\n");
	247	for (j = 0; j < sk_X509_num(chain); j++) {
	248	X509 *cert = sk_X509_value(chain, j);
	249	printf("depth=%d: ", j);
	250	X509_NAME_print_ex_fp(stdout,
	251	X509_get_subject_name(cert),
b5c4209b	252	0, get_nameopt());
63c6aa6b VD	253	if (j < num_untrusted)
	254	printf(" (untrusted)");
	255	printf("\n");
	256	}
	257	sk_X509_pop_free(chain, X509_free);
	258	}
	259	} else {
	260	printf("error %s: verification failed\n", (file == NULL) ? "stdin" : file);
7f3f41d8	261	}
0f113f3e MC	262	X509_STORE_CTX_free(csc);
0f113f3e MC	263
0f113f3e	264	end:
480405e4	265	if (i <= 0)
63c6aa6b	266	ERR_print_errors(bio_err);
222561fe	267	X509_free(x);
0f113f3e	268
480405e4	269	return ret;
0f113f3e	270	}
d02b48c6	271
6d23cf97	272	static int cb(int ok, X509_STORE_CTX *ctx)
0f113f3e MC	273	{
	274	int cert_error = X509_STORE_CTX_get_error(ctx);
	275	X509 *current_cert = X509_STORE_CTX_get_current_cert(ctx);
	276
	277	if (!ok) {
2234212c	278	if (current_cert != NULL) {
ecf3a1fb RS	279	X509_NAME_print_ex(bio_err,
ecf3a1fb RS	280	X509_get_subject_name(current_cert),
b5c4209b	281	0, get_nameopt());
ecf3a1fb	282	BIO_printf(bio_err, "\n");
0f113f3e	283	}
63c6aa6b VD	284	BIO_printf(bio_err, "%serror %d at %d depth lookup: %s\n",
63c6aa6b VD	285	X509_STORE_CTX_get0_parent_ctx(ctx) ? "[CRL path] " : "",
0f113f3e MC	286	cert_error,
	287	X509_STORE_CTX_get_error_depth(ctx),
	288	X509_verify_cert_error_string(cert_error));
04c71d86 RL	289
	290	/*
	291	* Pretend that some errors are ok, so they don't stop further
	292	* processing of the certificate chain. Setting ok = 1 does this.
	293	* After X509_verify_cert() is done, we verify that there were
	294	* no actual errors, even if the returned value was positive.
	295	*/
0f113f3e MC	296	switch (cert_error) {
0f113f3e MC	297	case X509_V_ERR_NO_EXPLICIT_POLICY:
ecf3a1fb	298	policies_print(ctx);
018fcbec	299	/* fall thru */
0f113f3e	300	case X509_V_ERR_CERT_HAS_EXPIRED:
04c71d86	301	/* Continue even if the leaf is a self signed cert */
0f113f3e MC	302	case X509_V_ERR_DEPTH_ZERO_SELF_SIGNED_CERT:
	303	/* Continue after extension errors too */
	304	case X509_V_ERR_INVALID_CA:
	305	case X509_V_ERR_INVALID_NON_CA:
	306	case X509_V_ERR_PATH_LENGTH_EXCEEDED:
	307	case X509_V_ERR_INVALID_PURPOSE:
	308	case X509_V_ERR_CRL_HAS_EXPIRED:
	309	case X509_V_ERR_CRL_NOT_YET_VALID:
	310	case X509_V_ERR_UNHANDLED_CRITICAL_EXTENSION:
	311	ok = 1;
0f113f3e MC	312	}
	313
	314	return ok;
	315
	316	}
	317	if (cert_error == X509_V_OK && ok == 2)
ecf3a1fb	318	policies_print(ctx);
0f113f3e MC	319	if (!v_verbose)
0f113f3e MC	320	ERR_clear_error();
26a7d938	321	return ok;
0f113f3e	322	}