[thirdparty/openssl.git] / crypto / x509 / t_x509.c

/*
 * Copyright 1995-2020 The OpenSSL Project Authors. All Rights Reserved.
 *
 * Licensed under the Apache License 2.0 (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 "internal/cryptlib.h"
#include <openssl/buffer.h>
#include <openssl/bn.h>
#include <openssl/objects.h>
#include <openssl/x509.h>
#include <openssl/x509v3.h>
#include "crypto/asn1.h"
#include "crypto/x509.h"

DEFINE_STACK_OF(X509)
DEFINE_STACK_OF(ASN1_OBJECT)

#ifndef OPENSSL_NO_STDIO
int X509_print_fp(FILE *fp, X509 *x)
{
    return X509_print_ex_fp(fp, x, XN_FLAG_COMPAT, X509_FLAG_COMPAT);
}

int X509_print_ex_fp(FILE *fp, X509 *x, unsigned long nmflag,
                     unsigned long cflag)
{
    BIO *b;
    int ret;

    if ((b = BIO_new(BIO_s_file())) == NULL) {
        X509err(X509_F_X509_PRINT_EX_FP, ERR_R_BUF_LIB);
        return 0;
    }
    BIO_set_fp(b, fp, BIO_NOCLOSE);
    ret = X509_print_ex(b, x, nmflag, cflag);
    BIO_free(b);
    return ret;
}
#endif

int X509_print(BIO *bp, X509 *x)
{
    return X509_print_ex(bp, x, XN_FLAG_COMPAT, X509_FLAG_COMPAT);
}

int X509_print_ex(BIO *bp, X509 *x, unsigned long nmflags,
                  unsigned long cflag)
{
    long l;
    int ret = 0, i;
    char *m = NULL, mlch = ' ';
    int nmindent = 0;
    ASN1_INTEGER *bs;
    EVP_PKEY *pkey = NULL;
    const char *neg;

    if ((nmflags & XN_FLAG_SEP_MASK) == XN_FLAG_SEP_MULTILINE) {
        mlch = '\n';
        nmindent = 12;
    }

    if (nmflags == X509_FLAG_COMPAT)
        nmindent = 16;

    if (!(cflag & X509_FLAG_NO_HEADER)) {
        if (BIO_write(bp, "Certificate:\n", 13) <= 0)
            goto err;
        if (BIO_write(bp, "    Data:\n", 10) <= 0)
            goto err;
    }
    if (!(cflag & X509_FLAG_NO_VERSION)) {
        l = X509_get_version(x);
        if (l >= 0 && l <= 2) {
            if (BIO_printf(bp, "%8sVersion: %ld (0x%lx)\n", "", l + 1, (unsigned long)l) <= 0)
                goto err;
        } else {
            if (BIO_printf(bp, "%8sVersion: Unknown (%ld)\n", "", l) <= 0)
                goto err;
        }
    }
    if (!(cflag & X509_FLAG_NO_SERIAL)) {

        if (BIO_write(bp, "        Serial Number:", 22) <= 0)
            goto err;

        bs = X509_get_serialNumber(x);
        if (bs->length <= (int)sizeof(long)) {
                ERR_set_mark();
                l = ASN1_INTEGER_get(bs);
                ERR_pop_to_mark();
        } else {
            l = -1;
        }
        if (l != -1) {
            unsigned long ul;
            if (bs->type == V_ASN1_NEG_INTEGER) {
                ul = 0 - (unsigned long)l;
                neg = "-";
            } else {
                ul = l;
                neg = "";
            }
            if (BIO_printf(bp, " %s%lu (%s0x%lx)\n", neg, ul, neg, ul) <= 0)
                goto err;
        } else {
            neg = (bs->type == V_ASN1_NEG_INTEGER) ? " (Negative)" : "";
            if (BIO_printf(bp, "\n%12s%s", "", neg) <= 0)
                goto err;

            for (i = 0; i < bs->length; i++) {
                if (BIO_printf(bp, "%02x%c", bs->data[i],
                               ((i + 1 == bs->length) ? '\n' : ':')) <= 0)
                    goto err;
            }
        }

    }

    if (!(cflag & X509_FLAG_NO_SIGNAME)) {
        const X509_ALGOR *tsig_alg = X509_get0_tbs_sigalg(x);

        if (BIO_puts(bp, "    ") <= 0)
            goto err;
        if (X509_signature_print(bp, tsig_alg, NULL) <= 0)
            goto err;
    }

    if (!(cflag & X509_FLAG_NO_ISSUER)) {
        if (BIO_printf(bp, "        Issuer:%c", mlch) <= 0)
            goto err;
        if (X509_NAME_print_ex(bp, X509_get_issuer_name(x), nmindent, nmflags)
            < 0)
            goto err;
        if (BIO_write(bp, "\n", 1) <= 0)
            goto err;
    }
    if (!(cflag & X509_FLAG_NO_VALIDITY)) {
        if (BIO_write(bp, "        Validity\n", 17) <= 0)
            goto err;
        if (BIO_write(bp, "            Not Before: ", 24) <= 0)
            goto err;
        if (!ASN1_TIME_print(bp, X509_get0_notBefore(x)))
            goto err;
        if (BIO_write(bp, "\n            Not After : ", 25) <= 0)
            goto err;
        if (!ASN1_TIME_print(bp, X509_get0_notAfter(x)))
            goto err;
        if (BIO_write(bp, "\n", 1) <= 0)
            goto err;
    }
    if (!(cflag & X509_FLAG_NO_SUBJECT)) {
        if (BIO_printf(bp, "        Subject:%c", mlch) <= 0)
            goto err;
        if (X509_NAME_print_ex
            (bp, X509_get_subject_name(x), nmindent, nmflags) < 0)
            goto err;
        if (BIO_write(bp, "\n", 1) <= 0)
            goto err;
    }
    if (!(cflag & X509_FLAG_NO_PUBKEY)) {
        X509_PUBKEY *xpkey = X509_get_X509_PUBKEY(x);
        ASN1_OBJECT *xpoid;
        X509_PUBKEY_get0_param(&xpoid, NULL, NULL, NULL, xpkey);
        if (BIO_write(bp, "        Subject Public Key Info:\n", 33) <= 0)
            goto err;
        if (BIO_printf(bp, "%12sPublic Key Algorithm: ", "") <= 0)
            goto err;
        if (i2a_ASN1_OBJECT(bp, xpoid) <= 0)
            goto err;
        if (BIO_puts(bp, "\n") <= 0)
            goto err;

        pkey = X509_get0_pubkey(x);
        if (pkey == NULL) {
            BIO_printf(bp, "%12sUnable to load Public Key\n", "");
            ERR_print_errors(bp);
        } else {
            EVP_PKEY_print_public(bp, pkey, 16, NULL);
        }
    }

    if (!(cflag & X509_FLAG_NO_IDS)) {
        const ASN1_BIT_STRING *iuid, *suid;
        X509_get0_uids(x, &iuid, &suid);
        if (iuid != NULL) {
            if (BIO_printf(bp, "%8sIssuer Unique ID: ", "") <= 0)
                goto err;
            if (!X509_signature_dump(bp, iuid, 12))
                goto err;
        }
        if (suid != NULL) {
            if (BIO_printf(bp, "%8sSubject Unique ID: ", "") <= 0)
                goto err;
            if (!X509_signature_dump(bp, suid, 12))
                goto err;
        }
    }

    if (!(cflag & X509_FLAG_NO_EXTENSIONS))
        X509V3_extensions_print(bp, "X509v3 extensions",
                                X509_get0_extensions(x), cflag, 8);

    if (!(cflag & X509_FLAG_NO_SIGDUMP)) {
        const X509_ALGOR *sig_alg;
        const ASN1_BIT_STRING *sig;
        X509_get0_signature(&sig, &sig_alg, x);
        if (X509_signature_print(bp, sig_alg, sig) <= 0)
            goto err;
    }
    if (!(cflag & X509_FLAG_NO_AUX)) {
        if (!X509_aux_print(bp, x, 0))
            goto err;
    }
    ret = 1;
 err:
    OPENSSL_free(m);
    return ret;
}

int X509_ocspid_print(BIO *bp, X509 *x)
{
    unsigned char *der = NULL;
    unsigned char *dertmp;
    int derlen;
    int i;
    unsigned char SHA1md[SHA_DIGEST_LENGTH];
    ASN1_BIT_STRING *keybstr;
    const X509_NAME *subj;

    /*
     * display the hash of the subject as it would appear in OCSP requests
     */
    if (BIO_printf(bp, "        Subject OCSP hash: ") <= 0)
        goto err;
    subj = X509_get_subject_name(x);
    derlen = i2d_X509_NAME(subj, NULL);
    if ((der = dertmp = OPENSSL_malloc(derlen)) == NULL)
        goto err;
    i2d_X509_NAME(subj, &dertmp);

    if (!EVP_Digest(der, derlen, SHA1md, NULL, EVP_sha1(), NULL))
        goto err;
    for (i = 0; i < SHA_DIGEST_LENGTH; i++) {
        if (BIO_printf(bp, "%02X", SHA1md[i]) <= 0)
            goto err;
    }
    OPENSSL_free(der);
    der = NULL;

    /*
     * display the hash of the public key as it would appear in OCSP requests
     */
    if (BIO_printf(bp, "\n        Public key OCSP hash: ") <= 0)
        goto err;

    keybstr = X509_get0_pubkey_bitstr(x);

    if (keybstr == NULL)
        goto err;

    if (!EVP_Digest(ASN1_STRING_get0_data(keybstr),
                    ASN1_STRING_length(keybstr), SHA1md, NULL, EVP_sha1(),
                    NULL))
        goto err;
    for (i = 0; i < SHA_DIGEST_LENGTH; i++) {
        if (BIO_printf(bp, "%02X", SHA1md[i]) <= 0)
            goto err;
    }
    BIO_printf(bp, "\n");

    return 1;
 err:
    OPENSSL_free(der);
    return 0;
}

int X509_signature_dump(BIO *bp, const ASN1_STRING *sig, int indent)
{
    const unsigned char *s;
    int i, n;

    n = sig->length;
    s = sig->data;
    for (i = 0; i < n; i++) {
        if ((i % 18) == 0) {
            if (i > 0 && BIO_write(bp, "\n", 1) <= 0)
                return 0;
            if (BIO_indent(bp, indent, indent) <= 0)
                return 0;
        }
        if (BIO_printf(bp, "%02x%s", s[i], ((i + 1) == n) ? "" : ":") <= 0)
            return 0;
    }
    if (BIO_write(bp, "\n", 1) != 1)
        return 0;

    return 1;
}

int X509_signature_print(BIO *bp, const X509_ALGOR *sigalg,
                         const ASN1_STRING *sig)
{
    int sig_nid;
    int indent = 4;
    if (BIO_printf(bp, "%*sSignature Algorithm: ", indent, "") <= 0)
        return 0;
    if (i2a_ASN1_OBJECT(bp, sigalg->algorithm) <= 0)
        return 0;

    if (sig && BIO_printf(bp, "\n%*sSignature Value:", indent, "") <= 0)
        return 0;
    sig_nid = OBJ_obj2nid(sigalg->algorithm);
    if (sig_nid != NID_undef) {
        int pkey_nid, dig_nid;
        const EVP_PKEY_ASN1_METHOD *ameth;
        if (OBJ_find_sigid_algs(sig_nid, &dig_nid, &pkey_nid)) {
            ameth = EVP_PKEY_asn1_find(NULL, pkey_nid);
            if (ameth && ameth->sig_print)
                return ameth->sig_print(bp, sigalg, sig, indent + 4, 0);
        }
    }
    if (BIO_write(bp, "\n", 1) != 1)
        return 0;
    if (sig)
        return X509_signature_dump(bp, sig, indent + 4);
    return 1;
}

int X509_aux_print(BIO *out, X509 *x, int indent)
{
    char oidstr[80], first;
    STACK_OF(ASN1_OBJECT) *trust, *reject;
    const unsigned char *alias, *keyid;
    int keyidlen;
    int i;
    if (X509_trusted(x) == 0)
        return 1;
    trust = X509_get0_trust_objects(x);
    reject = X509_get0_reject_objects(x);
    if (trust) {
        first = 1;
        BIO_printf(out, "%*sTrusted Uses:\n%*s", indent, "", indent + 2, "");
        for (i = 0; i < sk_ASN1_OBJECT_num(trust); i++) {
            if (!first)
                BIO_puts(out, ", ");
            else
                first = 0;
            OBJ_obj2txt(oidstr, sizeof(oidstr),
                        sk_ASN1_OBJECT_value(trust, i), 0);
            BIO_puts(out, oidstr);
        }
        BIO_puts(out, "\n");
    } else
        BIO_printf(out, "%*sNo Trusted Uses.\n", indent, "");
    if (reject) {
        first = 1;
        BIO_printf(out, "%*sRejected Uses:\n%*s", indent, "", indent + 2, "");
        for (i = 0; i < sk_ASN1_OBJECT_num(reject); i++) {
            if (!first)
                BIO_puts(out, ", ");
            else
                first = 0;
            OBJ_obj2txt(oidstr, sizeof(oidstr),
                        sk_ASN1_OBJECT_value(reject, i), 0);
            BIO_puts(out, oidstr);
        }
        BIO_puts(out, "\n");
    } else
        BIO_printf(out, "%*sNo Rejected Uses.\n", indent, "");
    alias = X509_alias_get0(x, NULL);
    if (alias)
        BIO_printf(out, "%*sAlias: %s\n", indent, "", alias);
    keyid = X509_keyid_get0(x, &keyidlen);
    if (keyid) {
        BIO_printf(out, "%*sKey Id: ", indent, "");
        for (i = 0; i < keyidlen; i++)
            BIO_printf(out, "%s%02X", i ? ":" : "", keyid[i]);
        BIO_write(out, "\n", 1);
    }
    return 1;
}

/*
 * Helper functions for improving certificate verification error diagnostics
 */

int x509_print_ex_brief(BIO *bio, X509 *cert, unsigned long neg_cflags)
{
    unsigned long flags = ASN1_STRFLGS_RFC2253 | ASN1_STRFLGS_ESC_QUOTE |
        XN_FLAG_SEP_CPLUS_SPC | XN_FLAG_FN_SN;

    if (cert == NULL)
        return BIO_printf(bio, "    (no certificate)\n") > 0;
    if (BIO_printf(bio, "    certificate\n") <= 0
            || !X509_print_ex(bio, cert, flags, ~X509_FLAG_NO_SUBJECT))
        return 0;
    if (X509_check_issued((X509 *)cert, cert) == X509_V_OK) {
        if (BIO_printf(bio, "        self-issued\n") <= 0)
            return 0;
    } else {
        if (BIO_printf(bio, " ") <= 0
            || !X509_print_ex(bio, cert, flags, ~X509_FLAG_NO_ISSUER))
            return 0;
    }
    if (!X509_print_ex(bio, cert, flags,
                       ~(X509_FLAG_NO_SERIAL | X509_FLAG_NO_VALIDITY)))
        return 0;
    if (X509_cmp_current_time(X509_get0_notBefore(cert)) > 0)
        if (BIO_printf(bio, "        not yet valid\n") <= 0)
            return 0;
    if (X509_cmp_current_time(X509_get0_notAfter(cert)) < 0)
        if (BIO_printf(bio, "        no more valid\n") <= 0)
            return 0;
    return X509_print_ex(bio, cert, flags, ~(neg_cflags));
}

static int print_certs(BIO *bio, const STACK_OF(X509) *certs)
{
    int i;

    if (certs == NULL || sk_X509_num(certs) <= 0)
        return BIO_printf(bio, "    (no certificates)\n") >= 0;

    for (i = 0; i < sk_X509_num(certs); i++) {
        X509 *cert = sk_X509_value(certs, i);
        if (cert != NULL && !x509_print_ex_brief(bio, cert, 0))
            return 0;
    }
    return 1;
}

static int print_store_certs(BIO *bio, X509_STORE *store)
{
    if (store != NULL) {
        STACK_OF(X509) *certs = X509_STORE_get1_all_certs(store);
        int ret = print_certs(bio, certs);

        sk_X509_pop_free(certs, X509_free);
        return ret;
    } else {
        return BIO_printf(bio, "    (no trusted store)\n") >= 0;
    }
}

/* Extend the error queue with details on a failed cert verification */
int X509_STORE_CTX_print_verify_cb(int ok, X509_STORE_CTX *ctx)
{
    if (ok == 0 && ctx != NULL) {
        int cert_error = X509_STORE_CTX_get_error(ctx);
        BIO *bio = BIO_new(BIO_s_mem()); /* may be NULL */

        BIO_printf(bio, "%s at depth = %d error = %d (%s)\n",
                   X509_STORE_CTX_get0_parent_ctx(ctx) != NULL
                   ? "CRL path validation"
                   : "Certificate verification",
                   X509_STORE_CTX_get_error_depth(ctx),
                   cert_error, X509_verify_cert_error_string(cert_error));
        {
            X509_STORE *ts = X509_STORE_CTX_get0_store(ctx);
            X509_VERIFY_PARAM *vpm = X509_STORE_get0_param(ts);
            char *str;
            int idx = 0;

            switch (cert_error) {
            case X509_V_ERR_HOSTNAME_MISMATCH:
                BIO_printf(bio, "Expected hostname(s) = ");
                while ((str = X509_VERIFY_PARAM_get0_host(vpm, idx++)) != NULL)
                    BIO_printf(bio, "%s%s", idx == 1 ? "" : ", ", str);
                BIO_printf(bio, "\n");
                break;
            case X509_V_ERR_EMAIL_MISMATCH:
                str = X509_VERIFY_PARAM_get0_email(vpm);
                if (str != NULL)
                    BIO_printf(bio, "Expected email address = %s\n", str);
                break;
            case X509_V_ERR_IP_ADDRESS_MISMATCH:
                str = X509_VERIFY_PARAM_get1_ip_asc(vpm);
                if (str != NULL)
                    BIO_printf(bio, "Expected IP address = %s\n", str);
                OPENSSL_free(str);
                break;
            default:
                break;
            }
        }

        BIO_printf(bio, "Failure for:\n");
        x509_print_ex_brief(bio, X509_STORE_CTX_get_current_cert(ctx),
                            X509_FLAG_NO_EXTENSIONS);
        if (cert_error == X509_V_ERR_CERT_UNTRUSTED
                || cert_error == X509_V_ERR_DEPTH_ZERO_SELF_SIGNED_CERT
                || cert_error == X509_V_ERR_SELF_SIGNED_CERT_IN_CHAIN
                || cert_error == X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT
                || cert_error == X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT_LOCALLY
                || cert_error == X509_V_ERR_UNABLE_TO_GET_CRL_ISSUER
                || cert_error == X509_V_ERR_STORE_LOOKUP) {
            BIO_printf(bio, "Non-trusted certs:\n");
            print_certs(bio, X509_STORE_CTX_get0_untrusted(ctx));
            BIO_printf(bio, "Certs in trust store:\n");
            print_store_certs(bio, X509_STORE_CTX_get0_store(ctx));
        }
        X509err(0, X509_R_CERTIFICATE_VERIFICATION_FAILED);
        ERR_add_error_mem_bio("\n", bio);
        BIO_free(bio);
    }

    /*
     * TODO we could check policies here too, e.g.:
     * if (cert_error == X509_V_OK && ok == 2)
     *     policies_print(NULL, ctx);
     */

    return ok;
}
Commit	Line	Data
b1322259	1	/*
33388b44	2	* Copyright 1995-2020 The OpenSSL Project Authors. All Rights Reserved.
d02b48c6	3	*
3e4b43b9	4	* Licensed under the Apache License 2.0 (the "License"). You may not use
b1322259 RS	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>
b39fc560	11	#include "internal/cryptlib.h"
ec577822 BM	12	#include <openssl/buffer.h>
ec577822 BM	13	#include <openssl/bn.h>
ec577822 BM	14	#include <openssl/objects.h>
	15	#include <openssl/x509.h>
	16	#include <openssl/x509v3.h>
25f2138b	17	#include "crypto/asn1.h"
31b28ad9	18	#include "crypto/x509.h"
d02b48c6	19
852c2ed2 RS	20	DEFINE_STACK_OF(X509)
	21	DEFINE_STACK_OF(ASN1_OBJECT)
	22
4b618848	23	#ifndef OPENSSL_NO_STDIO
6b691a5c	24	int X509_print_fp(FILE fp, X509 x)
0f113f3e MC	25	{
	26	return X509_print_ex_fp(fp, x, XN_FLAG_COMPAT, X509_FLAG_COMPAT);
	27	}
d0c98589	28
0f113f3e MC	29	int X509_print_ex_fp(FILE fp, X509 x, unsigned long nmflag,
	30	unsigned long cflag)
	31	{
	32	BIO *b;
	33	int ret;
	34
	35	if ((b = BIO_new(BIO_s_file())) == NULL) {
	36	X509err(X509_F_X509_PRINT_EX_FP, ERR_R_BUF_LIB);
26a7d938	37	return 0;
0f113f3e MC	38	}
	39	BIO_set_fp(b, fp, BIO_NOCLOSE);
	40	ret = X509_print_ex(b, x, nmflag, cflag);
	41	BIO_free(b);
26a7d938	42	return ret;
0f113f3e	43	}
d02b48c6 RE	44	#endif
d02b48c6 RE	45
6b691a5c	46	int X509_print(BIO bp, X509 x)
d0c98589	47	{
0f113f3e	48	return X509_print_ex(bp, x, XN_FLAG_COMPAT, X509_FLAG_COMPAT);
d0c98589 DSH	49	}
d0c98589 DSH	50
0f113f3e MC	51	int X509_print_ex(BIO bp, X509 x, unsigned long nmflags,
	52	unsigned long cflag)
	53	{
	54	long l;
	55	int ret = 0, i;
	56	char *m = NULL, mlch = ' ';
	57	int nmindent = 0;
0f113f3e MC	58	ASN1_INTEGER *bs;
	59	EVP_PKEY *pkey = NULL;
	60	const char *neg;
	61
	62	if ((nmflags & XN_FLAG_SEP_MASK) == XN_FLAG_SEP_MULTILINE) {
	63	mlch = '\n';
	64	nmindent = 12;
	65	}
	66
	67	if (nmflags == X509_FLAG_COMPAT)
	68	nmindent = 16;
	69
0f113f3e MC	70	if (!(cflag & X509_FLAG_NO_HEADER)) {
	71	if (BIO_write(bp, "Certificate:\n", 13) <= 0)
	72	goto err;
	73	if (BIO_write(bp, " Data:\n", 10) <= 0)
	74	goto err;
	75	}
	76	if (!(cflag & X509_FLAG_NO_VERSION)) {
	77	l = X509_get_version(x);
676befbe KR	78	if (l >= 0 && l <= 2) {
	79	if (BIO_printf(bp, "%8sVersion: %ld (0x%lx)\n", "", l + 1, (unsigned long)l) <= 0)
	80	goto err;
	81	} else {
	82	if (BIO_printf(bp, "%8sVersion: Unknown (%ld)\n", "", l) <= 0)
	83	goto err;
	84	}
0f113f3e MC	85	}
	86	if (!(cflag & X509_FLAG_NO_SERIAL)) {
	87
	88	if (BIO_write(bp, " Serial Number:", 22) <= 0)
	89	goto err;
	90
	91	bs = X509_get_serialNumber(x);
	92	if (bs->length <= (int)sizeof(long)) {
4336de0c DSH	93	ERR_set_mark();
	94	l = ASN1_INTEGER_get(bs);
	95	ERR_pop_to_mark();
	96	} else {
	97	l = -1;
	98	}
	99	if (l != -1) {
244d7b28	100	unsigned long ul;
0f113f3e	101	if (bs->type == V_ASN1_NEG_INTEGER) {
244d7b28	102	ul = 0 - (unsigned long)l;
0f113f3e	103	neg = "-";
c4a60150	104	} else {
244d7b28	105	ul = l;
0f113f3e	106	neg = "";
c4a60150	107	}
244d7b28	108	if (BIO_printf(bp, " %s%lu (%s0x%lx)\n", neg, ul, neg, ul) <= 0)
0f113f3e MC	109	goto err;
	110	} else {
	111	neg = (bs->type == V_ASN1_NEG_INTEGER) ? " (Negative)" : "";
	112	if (BIO_printf(bp, "\n%12s%s", "", neg) <= 0)
	113	goto err;
	114
	115	for (i = 0; i < bs->length; i++) {
	116	if (BIO_printf(bp, "%02x%c", bs->data[i],
	117	((i + 1 == bs->length) ? '\n' : ':')) <= 0)
	118	goto err;
	119	}
	120	}
	121
	122	}
	123
	124	if (!(cflag & X509_FLAG_NO_SIGNAME)) {
8900f3e3	125	const X509_ALGOR *tsig_alg = X509_get0_tbs_sigalg(x);
e6cccb5f YL	126
	127	if (BIO_puts(bp, " ") <= 0)
	128	goto err;
699f1635	129	if (X509_signature_print(bp, tsig_alg, NULL) <= 0)
0f113f3e	130	goto err;
0f113f3e MC	131	}
	132
	133	if (!(cflag & X509_FLAG_NO_ISSUER)) {
	134	if (BIO_printf(bp, " Issuer:%c", mlch) <= 0)
	135	goto err;
	136	if (X509_NAME_print_ex(bp, X509_get_issuer_name(x), nmindent, nmflags)
	137	< 0)
	138	goto err;
	139	if (BIO_write(bp, "\n", 1) <= 0)
	140	goto err;
	141	}
	142	if (!(cflag & X509_FLAG_NO_VALIDITY)) {
	143	if (BIO_write(bp, " Validity\n", 17) <= 0)
	144	goto err;
	145	if (BIO_write(bp, " Not Before: ", 24) <= 0)
	146	goto err;
568ce3a5	147	if (!ASN1_TIME_print(bp, X509_get0_notBefore(x)))
0f113f3e MC	148	goto err;
	149	if (BIO_write(bp, "\n Not After : ", 25) <= 0)
	150	goto err;
568ce3a5	151	if (!ASN1_TIME_print(bp, X509_get0_notAfter(x)))
0f113f3e MC	152	goto err;
	153	if (BIO_write(bp, "\n", 1) <= 0)
	154	goto err;
	155	}
	156	if (!(cflag & X509_FLAG_NO_SUBJECT)) {
	157	if (BIO_printf(bp, " Subject:%c", mlch) <= 0)
	158	goto err;
	159	if (X509_NAME_print_ex
	160	(bp, X509_get_subject_name(x), nmindent, nmflags) < 0)
	161	goto err;
	162	if (BIO_write(bp, "\n", 1) <= 0)
	163	goto err;
	164	}
	165	if (!(cflag & X509_FLAG_NO_PUBKEY)) {
699f1635 DSH	166	X509_PUBKEY *xpkey = X509_get_X509_PUBKEY(x);
	167	ASN1_OBJECT *xpoid;
	168	X509_PUBKEY_get0_param(&xpoid, NULL, NULL, NULL, xpkey);
0f113f3e MC	169	if (BIO_write(bp, " Subject Public Key Info:\n", 33) <= 0)
	170	goto err;
	171	if (BIO_printf(bp, "%12sPublic Key Algorithm: ", "") <= 0)
	172	goto err;
699f1635	173	if (i2a_ASN1_OBJECT(bp, xpoid) <= 0)
0f113f3e MC	174	goto err;
	175	if (BIO_puts(bp, "\n") <= 0)
	176	goto err;
	177
c01ff880	178	pkey = X509_get0_pubkey(x);
0f113f3e MC	179	if (pkey == NULL) {
	180	BIO_printf(bp, "%12sUnable to load Public Key\n", "");
	181	ERR_print_errors(bp);
	182	} else {
	183	EVP_PKEY_print_public(bp, pkey, 16, NULL);
0f113f3e MC	184	}
	185	}
	186
	187	if (!(cflag & X509_FLAG_NO_IDS)) {
8900f3e3 DSH	188	const ASN1_BIT_STRING iuid, suid;
8900f3e3 DSH	189	X509_get0_uids(x, &iuid, &suid);
699f1635	190	if (iuid != NULL) {
0f113f3e MC	191	if (BIO_printf(bp, "%8sIssuer Unique ID: ", "") <= 0)
0f113f3e MC	192	goto err;
699f1635	193	if (!X509_signature_dump(bp, iuid, 12))
0f113f3e MC	194	goto err;
0f113f3e MC	195	}
699f1635	196	if (suid != NULL) {
0f113f3e MC	197	if (BIO_printf(bp, "%8sSubject Unique ID: ", "") <= 0)
0f113f3e MC	198	goto err;
699f1635	199	if (!X509_signature_dump(bp, suid, 12))
0f113f3e MC	200	goto err;
	201	}
	202	}
	203
	204	if (!(cflag & X509_FLAG_NO_EXTENSIONS))
	205	X509V3_extensions_print(bp, "X509v3 extensions",
699f1635	206	X509_get0_extensions(x), cflag, 8);
0f113f3e MC	207
0f113f3e MC	208	if (!(cflag & X509_FLAG_NO_SIGDUMP)) {
8adc1cb8 DSH	209	const X509_ALGOR *sig_alg;
8adc1cb8 DSH	210	const ASN1_BIT_STRING *sig;
699f1635 DSH	211	X509_get0_signature(&sig, &sig_alg, x);
699f1635 DSH	212	if (X509_signature_print(bp, sig_alg, sig) <= 0)
0f113f3e MC	213	goto err;
	214	}
	215	if (!(cflag & X509_FLAG_NO_AUX)) {
699f1635	216	if (!X509_aux_print(bp, x, 0))
0f113f3e MC	217	goto err;
	218	}
	219	ret = 1;
	220	err:
b548a1f1	221	OPENSSL_free(m);
26a7d938	222	return ret;
0f113f3e MC	223	}
	224
	225	int X509_ocspid_print(BIO bp, X509 x)
	226	{
	227	unsigned char *der = NULL;
	228	unsigned char *dertmp;
	229	int derlen;
	230	int i;
	231	unsigned char SHA1md[SHA_DIGEST_LENGTH];
699f1635	232	ASN1_BIT_STRING *keybstr;
8cc86b81	233	const X509_NAME *subj;
0f113f3e MC	234
	235	/*
	236	* display the hash of the subject as it would appear in OCSP requests
	237	*/
	238	if (BIO_printf(bp, " Subject OCSP hash: ") <= 0)
	239	goto err;
699f1635 DSH	240	subj = X509_get_subject_name(x);
699f1635 DSH	241	derlen = i2d_X509_NAME(subj, NULL);
b196e7d9	242	if ((der = dertmp = OPENSSL_malloc(derlen)) == NULL)
0f113f3e	243	goto err;
699f1635	244	i2d_X509_NAME(subj, &dertmp);
0f113f3e MC	245
	246	if (!EVP_Digest(der, derlen, SHA1md, NULL, EVP_sha1(), NULL))
	247	goto err;
	248	for (i = 0; i < SHA_DIGEST_LENGTH; i++) {
	249	if (BIO_printf(bp, "%02X", SHA1md[i]) <= 0)
	250	goto err;
	251	}
	252	OPENSSL_free(der);
	253	der = NULL;
	254
	255	/*
	256	* display the hash of the public key as it would appear in OCSP requests
	257	*/
	258	if (BIO_printf(bp, "\n Public key OCSP hash: ") <= 0)
	259	goto err;
	260
699f1635 DSH	261	keybstr = X509_get0_pubkey_bitstr(x);
	262
	263	if (keybstr == NULL)
	264	goto err;
	265
17ebf85a DSH	266	if (!EVP_Digest(ASN1_STRING_get0_data(keybstr),
	267	ASN1_STRING_length(keybstr), SHA1md, NULL, EVP_sha1(),
	268	NULL))
0f113f3e MC	269	goto err;
	270	for (i = 0; i < SHA_DIGEST_LENGTH; i++) {
	271	if (BIO_printf(bp, "%02X", SHA1md[i]) <= 0)
	272	goto err;
	273	}
	274	BIO_printf(bp, "\n");
	275
208fb891	276	return 1;
0f113f3e	277	err:
b548a1f1	278	OPENSSL_free(der);
26a7d938	279	return 0;
0f113f3e	280	}
eb64730b	281
fa1ba589	282	int X509_signature_dump(BIO bp, const ASN1_STRING sig, int indent)
de487514	283	{
0f113f3e MC	284	const unsigned char *s;
	285	int i, n;
	286
	287	n = sig->length;
	288	s = sig->data;
	289	for (i = 0; i < n; i++) {
	290	if ((i % 18) == 0) {
a4c467c9	291	if (i > 0 && BIO_write(bp, "\n", 1) <= 0)
0f113f3e MC	292	return 0;
	293	if (BIO_indent(bp, indent, indent) <= 0)
	294	return 0;
	295	}
	296	if (BIO_printf(bp, "%02x%s", s[i], ((i + 1) == n) ? "" : ":") <= 0)
	297	return 0;
	298	}
	299	if (BIO_write(bp, "\n", 1) != 1)
	300	return 0;
	301
	302	return 1;
de487514 DSH	303	}
de487514 DSH	304
5e6089f0 MC	305	int X509_signature_print(BIO bp, const X509_ALGOR sigalg,
5e6089f0 MC	306	const ASN1_STRING *sig)
fa1ba589	307	{
0f113f3e	308	int sig_nid;
5743d126 DO	309	int indent = 4;
5743d126 DO	310	if (BIO_printf(bp, "%*sSignature Algorithm: ", indent, "") <= 0)
0f113f3e MC	311	return 0;
	312	if (i2a_ASN1_OBJECT(bp, sigalg->algorithm) <= 0)
	313	return 0;
	314
5743d126 DO	315	if (sig && BIO_printf(bp, "\n%*sSignature Value:", indent, "") <= 0)
5743d126 DO	316	return 0;
0f113f3e MC	317	sig_nid = OBJ_obj2nid(sigalg->algorithm);
	318	if (sig_nid != NID_undef) {
	319	int pkey_nid, dig_nid;
	320	const EVP_PKEY_ASN1_METHOD *ameth;
	321	if (OBJ_find_sigid_algs(sig_nid, &dig_nid, &pkey_nid)) {
	322	ameth = EVP_PKEY_asn1_find(NULL, pkey_nid);
	323	if (ameth && ameth->sig_print)
5743d126	324	return ameth->sig_print(bp, sigalg, sig, indent + 4, 0);
0f113f3e MC	325	}
0f113f3e MC	326	}
a4c467c9 DO	327	if (BIO_write(bp, "\n", 1) != 1)
a4c467c9 DO	328	return 0;
0f113f3e	329	if (sig)
5743d126	330	return X509_signature_dump(bp, sig, indent + 4);
0f113f3e	331	return 1;
fa1ba589	332	}
699f1635 DSH	333
	334	int X509_aux_print(BIO out, X509 x, int indent)
	335	{
	336	char oidstr[80], first;
	337	STACK_OF(ASN1_OBJECT) trust, reject;
	338	const unsigned char alias, keyid;
	339	int keyidlen;
	340	int i;
	341	if (X509_trusted(x) == 0)
	342	return 1;
	343	trust = X509_get0_trust_objects(x);
	344	reject = X509_get0_reject_objects(x);
	345	if (trust) {
	346	first = 1;
	347	BIO_printf(out, "%sTrusted Uses:\n%s", indent, "", indent + 2, "");
	348	for (i = 0; i < sk_ASN1_OBJECT_num(trust); i++) {
	349	if (!first)
	350	BIO_puts(out, ", ");
	351	else
	352	first = 0;
cbe29648	353	OBJ_obj2txt(oidstr, sizeof(oidstr),
699f1635 DSH	354	sk_ASN1_OBJECT_value(trust, i), 0);
	355	BIO_puts(out, oidstr);
	356	}
	357	BIO_puts(out, "\n");
	358	} else
	359	BIO_printf(out, "%*sNo Trusted Uses.\n", indent, "");
	360	if (reject) {
	361	first = 1;
	362	BIO_printf(out, "%sRejected Uses:\n%s", indent, "", indent + 2, "");
	363	for (i = 0; i < sk_ASN1_OBJECT_num(reject); i++) {
	364	if (!first)
	365	BIO_puts(out, ", ");
	366	else
	367	first = 0;
cbe29648	368	OBJ_obj2txt(oidstr, sizeof(oidstr),
699f1635 DSH	369	sk_ASN1_OBJECT_value(reject, i), 0);
	370	BIO_puts(out, oidstr);
	371	}
	372	BIO_puts(out, "\n");
	373	} else
	374	BIO_printf(out, "%*sNo Rejected Uses.\n", indent, "");
	375	alias = X509_alias_get0(x, NULL);
	376	if (alias)
	377	BIO_printf(out, "%*sAlias: %s\n", indent, "", alias);
	378	keyid = X509_keyid_get0(x, &keyidlen);
	379	if (keyid) {
	380	BIO_printf(out, "%*sKey Id: ", indent, "");
	381	for (i = 0; i < keyidlen; i++)
	382	BIO_printf(out, "%s%02X", i ? ":" : "", keyid[i]);
	383	BIO_write(out, "\n", 1);
	384	}
	385	return 1;
	386	}
31b28ad9 DDO	387
	388	/*
	389	* Helper functions for improving certificate verification error diagnostics
	390	*/
	391
	392	int x509_print_ex_brief(BIO bio, X509 cert, unsigned long neg_cflags)
	393	{
	394	unsigned long flags = ASN1_STRFLGS_RFC2253 \| ASN1_STRFLGS_ESC_QUOTE \|
	395	XN_FLAG_SEP_CPLUS_SPC \| XN_FLAG_FN_SN;
	396
	397	if (cert == NULL)
	398	return BIO_printf(bio, " (no certificate)\n") > 0;
	399	if (BIO_printf(bio, " certificate\n") <= 0
	400	\|\| !X509_print_ex(bio, cert, flags, ~X509_FLAG_NO_SUBJECT))
	401	return 0;
	402	if (X509_check_issued((X509 *)cert, cert) == X509_V_OK) {
	403	if (BIO_printf(bio, " self-issued\n") <= 0)
	404	return 0;
	405	} else {
	406	if (BIO_printf(bio, " ") <= 0
	407	\|\| !X509_print_ex(bio, cert, flags, ~X509_FLAG_NO_ISSUER))
	408	return 0;
	409	}
	410	if (!X509_print_ex(bio, cert, flags,
	411	~(X509_FLAG_NO_SERIAL \| X509_FLAG_NO_VALIDITY)))
	412	return 0;
	413	if (X509_cmp_current_time(X509_get0_notBefore(cert)) > 0)
	414	if (BIO_printf(bio, " not yet valid\n") <= 0)
	415	return 0;
	416	if (X509_cmp_current_time(X509_get0_notAfter(cert)) < 0)
	417	if (BIO_printf(bio, " no more valid\n") <= 0)
	418	return 0;
	419	return X509_print_ex(bio, cert, flags, ~(neg_cflags));
	420	}
	421
	422	static int print_certs(BIO bio, const STACK_OF(X509) certs)
	423	{
	424	int i;
	425
	426	if (certs == NULL \|\| sk_X509_num(certs) <= 0)
	427	return BIO_printf(bio, " (no certificates)\n") >= 0;
	428
	429	for (i = 0; i < sk_X509_num(certs); i++) {
	430	X509 *cert = sk_X509_value(certs, i);
	431	if (cert != NULL && !x509_print_ex_brief(bio, cert, 0))
	432	return 0;
	433	}
	434	return 1;
	435	}
	436
	437	static int print_store_certs(BIO bio, X509_STORE store)
	438	{
	439	if (store != NULL) {
	440	STACK_OF(X509) *certs = X509_STORE_get1_all_certs(store);
	441	int ret = print_certs(bio, certs);
	442
	443	sk_X509_pop_free(certs, X509_free);
	444	return ret;
	445	} else {
	446	return BIO_printf(bio, " (no trusted store)\n") >= 0;
	447	}
	448	}
	449
	450	/* Extend the error queue with details on a failed cert verification */
451	int X509_STORE_CTX_print_verify_cb(int ok, X509_STORE_CTX *ctx)
452	{
453	if (ok == 0 && ctx != NULL) {
454	int cert_error = X509_STORE_CTX_get_error(ctx);
31b28ad9 DDO	455	BIO bio = BIO_new(BIO_s_mem()); / may be NULL */
31b28ad9 DDO	456
278260bf	457	BIO_printf(bio, "%s at depth = %d error = %d (%s)\n",
31b28ad9	458	X509_STORE_CTX_get0_parent_ctx(ctx) != NULL
278260bf DDO	459	? "CRL path validation"
	460	: "Certificate verification",
	461	X509_STORE_CTX_get_error_depth(ctx),
	462	cert_error, X509_verify_cert_error_string(cert_error));
	463	{
	464	X509_STORE *ts = X509_STORE_CTX_get0_store(ctx);
	465	X509_VERIFY_PARAM *vpm = X509_STORE_get0_param(ts);
	466	char *str;
	467	int idx = 0;
	468
	469	switch (cert_error) {
	470	case X509_V_ERR_HOSTNAME_MISMATCH:
	471	BIO_printf(bio, "Expected hostname(s) = ");
	472	while ((str = X509_VERIFY_PARAM_get0_host(vpm, idx++)) != NULL)
	473	BIO_printf(bio, "%s%s", idx == 1 ? "" : ", ", str);
	474	BIO_printf(bio, "\n");
	475	break;
	476	case X509_V_ERR_EMAIL_MISMATCH:
	477	str = X509_VERIFY_PARAM_get0_email(vpm);
	478	if (str != NULL)
	479	BIO_printf(bio, "Expected email address = %s\n", str);
	480	break;
	481	case X509_V_ERR_IP_ADDRESS_MISMATCH:
	482	str = X509_VERIFY_PARAM_get1_ip_asc(vpm);
	483	if (str != NULL)
	484	BIO_printf(bio, "Expected IP address = %s\n", str);
	485	OPENSSL_free(str);
	486	break;
	487	default:
	488	break;
	489	}
	490	}
	491
	492	BIO_printf(bio, "Failure for:\n");
	493	x509_print_ex_brief(bio, X509_STORE_CTX_get_current_cert(ctx),
	494	X509_FLAG_NO_EXTENSIONS);
31b28ad9 DDO	495	if (cert_error == X509_V_ERR_CERT_UNTRUSTED
	496	\|\| cert_error == X509_V_ERR_DEPTH_ZERO_SELF_SIGNED_CERT
	497	\|\| cert_error == X509_V_ERR_SELF_SIGNED_CERT_IN_CHAIN
	498	\|\| cert_error == X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT
	499	\|\| cert_error == X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT_LOCALLY
	500	\|\| cert_error == X509_V_ERR_UNABLE_TO_GET_CRL_ISSUER
	501	\|\| cert_error == X509_V_ERR_STORE_LOOKUP) {
278260bf	502	BIO_printf(bio, "Non-trusted certs:\n");
31b28ad9	503	print_certs(bio, X509_STORE_CTX_get0_untrusted(ctx));
278260bf	504	BIO_printf(bio, "Certs in trust store:\n");
31b28ad9 DDO	505	print_store_certs(bio, X509_STORE_CTX_get0_store(ctx));
31b28ad9 DDO	506	}
99d680e6	507	X509err(0, X509_R_CERTIFICATE_VERIFICATION_FAILED);
31b28ad9 DDO	508	ERR_add_error_mem_bio("\n", bio);
	509	BIO_free(bio);
	510	}
	511
	512	/*
	513	* TODO we could check policies here too, e.g.:
	514	* if (cert_error == X509_V_OK && ok == 2)
	515	* policies_print(NULL, ctx);
	516	*/
	517
	518	return ok;
	519	}