/src/openssl/crypto/x509/t_x509.c

Source
/*
 * Copyright 1995-2025 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"
#include "crypto/evp.h"

void OSSL_STACK_OF_X509_free(STACK_OF(X509) *certs)
{
    sk_X509_pop_free(certs, X509_free);
}

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

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

    if ((b = BIO_new(BIO_s_file())) == NULL) {
        ERR_raise(ERR_LIB_X509, 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, const X509 *x)
{
    return X509_print_ex(bp, x, XN_FLAG_COMPAT, X509_FLAG_COMPAT);
}

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

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

    if (nmflags == XN_FLAG_COMPAT)
        printok = 1;

    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 >= X509_VERSION_1 && l <= X509_VERSION_3) {
            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)) {
        const ASN1_INTEGER *bs = X509_get0_serialNumber(x);

        if (BIO_write(bp, "        Serial Number:", 22) <= 0)
            goto err;
        if (ossl_serial_number_print(bp, bs, 12) != 0)
            goto err;
        if (BIO_puts(bp, "\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)
            < printok)
            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 (ossl_asn1_time_print_ex(bp, X509_get0_notBefore(x), ASN1_DTFLGS_RFC822) == 0)
            goto err;
        if (BIO_write(bp, "\n            Not After : ", 25) <= 0)
            goto err;
        if (ossl_asn1_time_print_ex(bp, X509_get0_notAfter(x), ASN1_DTFLGS_RFC822) == 0)
            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) < printok)
            goto err;
        if (BIO_write(bp, "\n", 1) <= 0)
            goto err;
    }
    if (!(cflag & X509_FLAG_NO_PUBKEY)) {
        const 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))
        goto err;

    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:
    return ret;
}

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

    if (x == NULL || bp == NULL)
        return 0;
    /*
     * 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 (derlen <= 0)
        goto err;
    if ((der = dertmp = OPENSSL_malloc(derlen)) == NULL)
        goto err;
    if (i2d_X509_NAME(subj, &dertmp) < 0)
        goto err;

    md = EVP_MD_fetch(x->libctx, SN_sha1, x->propq);
    if (md == NULL)
        goto err;
    if (!EVP_Digest(der, derlen, SHA1md, NULL, md, 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, md, 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");
    EVP_MD_free(md);

    return 1;
err:
    OPENSSL_free(der);
    EVP_MD_free(md);
    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 % 24) == 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)
{
#ifndef OPENSSL_NO_DEPRECATED_3_6
    int sig_nid;
#endif
    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;
#ifndef OPENSSL_NO_DEPRECATED_3_6
    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(pkey_nid);
            if (ameth && ameth->sig_print)
                return ameth->sig_print(bp, sigalg, sig, indent + 4, 0);
        }
    }
#endif
    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, const 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, &i);
    if (alias)
        BIO_printf(out, "%*sAlias: %.*s\n", indent, "", i, 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 ossl_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;
    X509_VERIFY_PARAM *vpm = X509_VERIFY_PARAM_new();
    int error, ret = 0;

    if (vpm == NULL) {
        ret = BIO_printf(bio, "    (malloc failed)\n") > 0;
        goto err;
    }
    if (cert == NULL) {
        ret = BIO_printf(bio, "    (no certificate)\n") > 0;
        goto err;
    }
    if (BIO_printf(bio, "    certificate\n") <= 0
        || !X509_print_ex(bio, cert, flags, ~X509_FLAG_NO_SUBJECT))
        goto err;
    if (X509_check_issued((X509 *)cert, cert) == X509_V_OK) {
        if (BIO_printf(bio, "        self-issued\n") <= 0)
            goto err;
    } else {
        if (BIO_printf(bio, " ") <= 0
            || !X509_print_ex(bio, cert, flags, ~X509_FLAG_NO_ISSUER))
            goto err;
    }
    if (!X509_print_ex(bio, cert, flags,
            ~(X509_FLAG_NO_SERIAL | X509_FLAG_NO_VALIDITY)))
        goto err;

    if (!X509_check_certificate_times(vpm, cert, &error)) {
        char msg[128];

        ERR_error_string_n(error, msg, sizeof(msg));
        if (BIO_printf(bio, "        %s\n", msg) <= 0)
            goto err;
    }
    ret = X509_print_ex(bio, cert, flags,
        ~neg_cflags & ~X509_FLAG_EXTENSIONS_ONLY_KID);

err:
    X509_VERIFY_PARAM_free(vpm);
    return ret;
}

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) {
            if (!ossl_x509_print_ex_brief(bio, cert, 0))
                return 0;
            if (!X509V3_extensions_print(bio, NULL,
                    X509_get0_extensions(cert),
                    X509_FLAG_EXTENSIONS_ONLY_KID, 8))
                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);

        OSSL_STACK_OF_X509_free(certs);
        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 */

        if (bio == NULL)
            return 0;
        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");
        ossl_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));
        }
        ERR_raise(ERR_LIB_X509, X509_R_CERTIFICATE_VERIFICATION_FAILED);
        ERR_add_error_mem_bio("\n", bio);
        BIO_free(bio);
    }

    return ok;
}

/*
 * Prints serial numbers in decimal and hexadecimal. The indent argument is only
 * used if the serial number is too large to fit in an int64_t.
 */
int ossl_serial_number_print(BIO *out, const ASN1_INTEGER *bs, int indent)
{
    int i, ok;
    int64_t l;
    uint64_t ul;
    const char *neg;

    if (bs->length == 0) {
        if (BIO_puts(out, " (Empty)") <= 0)
            return -1;
        return 0;
    }

    ERR_set_mark();
    ok = ASN1_INTEGER_get_int64(&l, bs);
    ERR_pop_to_mark();

    if (ok) { /* Reading an int64_t succeeded: print decimal and hex. */
        if (bs->type == V_ASN1_NEG_INTEGER) {
            ul = 0 - (uint64_t)l;
            neg = "-";
        } else {
            ul = l;
            neg = "";
        }
        if (BIO_printf(out, " %s%ju (%s0x%jx)", neg, ul, neg, ul) <= 0)
            return -1;
    } else { /* Reading an int64_t failed: just print hex. */
        neg = (bs->type == V_ASN1_NEG_INTEGER) ? " (Negative)" : "";
        if (BIO_printf(out, "\n%*s%s", indent, "", neg) <= 0)
            return -1;

        for (i = 0; i < bs->length - 1; i++) {
            if (BIO_printf(out, "%02x%c", bs->data[i], ':') <= 0)
                return -1;
        }
        if (BIO_printf(out, "%02x", bs->data[i]) <= 0)
            return -1;
    }
    return 0;
}

Coverage Report

Created: 2026-02-22 06:11

Line	Count	Source
1		/*
2		* Copyright 1995-2025 The OpenSSL Project Authors. All Rights Reserved.
3		*
4		* Licensed under the Apache License 2.0 (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
8		*/
9
10		#include <stdio.h>
11		#include "internal/cryptlib.h"
12		#include <openssl/buffer.h>
13		#include <openssl/bn.h>
14		#include <openssl/objects.h>
15		#include <openssl/x509.h>
16		#include <openssl/x509v3.h>
17		#include "crypto/asn1.h"
18		#include "crypto/x509.h"
19		#include "crypto/evp.h"
20
21		void OSSL_STACK_OF_X509_free(STACK_OF(X509) *certs)
22	0	{
23	0	sk_X509_pop_free(certs, X509_free);
24	0	}
25
26		#ifndef OPENSSL_NO_STDIO
27		int X509_print_fp(FILE fp, const X509 x)
28	0	{
29	0	return X509_print_ex_fp(fp, x, XN_FLAG_COMPAT, X509_FLAG_COMPAT);
30	0	}
31
32		int X509_print_ex_fp(FILE fp, const X509 x, unsigned long nmflag, unsigned long cflag)
33	0	{
34	0	BIO *b;
35	0	int ret;
36
37	0	if ((b = BIO_new(BIO_s_file())) == NULL) {
38	0	ERR_raise(ERR_LIB_X509, ERR_R_BUF_LIB);
39	0	return 0;
40	0	}
41	0	BIO_set_fp(b, fp, BIO_NOCLOSE);
42	0	ret = X509_print_ex(b, x, nmflag, cflag);
43	0	BIO_free(b);
44	0	return ret;
45	0	}
46		#endif
47
48		int X509_print(BIO bp, const X509 x)
49	0	{
50	0	return X509_print_ex(bp, x, XN_FLAG_COMPAT, X509_FLAG_COMPAT);
51	0	}
52
53		int X509_print_ex(BIO bp, const X509 x, unsigned long nmflags, unsigned long cflag)
54	0	{
55	0	long l;
56	0	int ret = 0;
57	0	char mlch = ' ';
58	0	int nmindent = 0, printok = 0;
59	0	EVP_PKEY *pkey = NULL;
60
61	0	if ((nmflags & XN_FLAG_SEP_MASK) == XN_FLAG_SEP_MULTILINE) {
62	0	mlch = '\n';
63	0	nmindent = 12;
64	0	}
65
66	0	if (nmflags == XN_FLAG_COMPAT)
67	0	printok = 1;
68
69	0	if (!(cflag & X509_FLAG_NO_HEADER)) {
70	0	if (BIO_write(bp, "Certificate:\n", 13) <= 0)
71	0	goto err;
72	0	if (BIO_write(bp, " Data:\n", 10) <= 0)
73	0	goto err;
74	0	}
75	0	if (!(cflag & X509_FLAG_NO_VERSION)) {
76	0	l = X509_get_version(x);
77	0	if (l >= X509_VERSION_1 && l <= X509_VERSION_3) {
78	0	if (BIO_printf(bp, "%8sVersion: %ld (0x%lx)\n", "", l + 1, (unsigned long)l) <= 0)
79	0	goto err;
80	0	} else {
81	0	if (BIO_printf(bp, "%8sVersion: Unknown (%ld)\n", "", l) <= 0)
82	0	goto err;
83	0	}
84	0	}
85	0	if (!(cflag & X509_FLAG_NO_SERIAL)) {
86	0	const ASN1_INTEGER *bs = X509_get0_serialNumber(x);
87
88	0	if (BIO_write(bp, " Serial Number:", 22) <= 0)
89	0	goto err;
90	0	if (ossl_serial_number_print(bp, bs, 12) != 0)
91	0	goto err;
92	0	if (BIO_puts(bp, "\n") <= 0)
93	0	goto err;
94	0	}
95
96	0	if (!(cflag & X509_FLAG_NO_SIGNAME)) {
97	0	const X509_ALGOR *tsig_alg = X509_get0_tbs_sigalg(x);
98
99	0	if (BIO_puts(bp, " ") <= 0)
100	0	goto err;
101	0	if (X509_signature_print(bp, tsig_alg, NULL) <= 0)
102	0	goto err;
103	0	}
104
105	0	if (!(cflag & X509_FLAG_NO_ISSUER)) {
106	0	if (BIO_printf(bp, " Issuer:%c", mlch) <= 0)
107	0	goto err;
108	0	if (X509_NAME_print_ex(bp, X509_get_issuer_name(x), nmindent, nmflags)
109	0	< printok)
110	0	goto err;
111	0	if (BIO_write(bp, "\n", 1) <= 0)
112	0	goto err;
113	0	}
114	0	if (!(cflag & X509_FLAG_NO_VALIDITY)) {
115	0	if (BIO_write(bp, " Validity\n", 17) <= 0)
116	0	goto err;
117	0	if (BIO_write(bp, " Not Before: ", 24) <= 0)
118	0	goto err;
119	0	if (ossl_asn1_time_print_ex(bp, X509_get0_notBefore(x), ASN1_DTFLGS_RFC822) == 0)
120	0	goto err;
121	0	if (BIO_write(bp, "\n Not After : ", 25) <= 0)
122	0	goto err;
123	0	if (ossl_asn1_time_print_ex(bp, X509_get0_notAfter(x), ASN1_DTFLGS_RFC822) == 0)
124	0	goto err;
125	0	if (BIO_write(bp, "\n", 1) <= 0)
126	0	goto err;
127	0	}
128	0	if (!(cflag & X509_FLAG_NO_SUBJECT)) {
129	0	if (BIO_printf(bp, " Subject:%c", mlch) <= 0)
130	0	goto err;
131	0	if (X509_NAME_print_ex(bp, X509_get_subject_name(x), nmindent, nmflags) < printok)
132	0	goto err;
133	0	if (BIO_write(bp, "\n", 1) <= 0)
134	0	goto err;
135	0	}
136	0	if (!(cflag & X509_FLAG_NO_PUBKEY)) {
137	0	const X509_PUBKEY *xpkey = X509_get_X509_PUBKEY(x);
138	0	ASN1_OBJECT *xpoid;
139	0	X509_PUBKEY_get0_param(&xpoid, NULL, NULL, NULL, xpkey);
140	0	if (BIO_write(bp, " Subject Public Key Info:\n", 33) <= 0)
141	0	goto err;
142	0	if (BIO_printf(bp, "%12sPublic Key Algorithm: ", "") <= 0)
143	0	goto err;
144	0	if (i2a_ASN1_OBJECT(bp, xpoid) <= 0)
145	0	goto err;
146	0	if (BIO_puts(bp, "\n") <= 0)
147	0	goto err;
148
149	0	pkey = X509_get0_pubkey(x);
150	0	if (pkey == NULL) {
151	0	BIO_printf(bp, "%12sUnable to load Public Key\n", "");
152	0	ERR_print_errors(bp);
153	0	} else {
154	0	EVP_PKEY_print_public(bp, pkey, 16, NULL);
155	0	}
156	0	}
157
158	0	if (!(cflag & X509_FLAG_NO_IDS)) {
159	0	const ASN1_BIT_STRING iuid, suid;
160	0	X509_get0_uids(x, &iuid, &suid);
161	0	if (iuid != NULL) {
162	0	if (BIO_printf(bp, "%8sIssuer Unique ID: ", "") <= 0)
163	0	goto err;
164	0	if (!X509_signature_dump(bp, iuid, 12))
165	0	goto err;
166	0	}
167	0	if (suid != NULL) {
168	0	if (BIO_printf(bp, "%8sSubject Unique ID: ", "") <= 0)
169	0	goto err;
170	0	if (!X509_signature_dump(bp, suid, 12))
171	0	goto err;
172	0	}
173	0	}
174
175	0	if (!(cflag & X509_FLAG_NO_EXTENSIONS)
176	0	&& !X509V3_extensions_print(bp, "X509v3 extensions",
177	0	X509_get0_extensions(x), cflag, 8))
178	0	goto err;
179
180	0	if (!(cflag & X509_FLAG_NO_SIGDUMP)) {
181	0	const X509_ALGOR *sig_alg;
182	0	const ASN1_BIT_STRING *sig;
183	0	X509_get0_signature(&sig, &sig_alg, x);
184	0	if (X509_signature_print(bp, sig_alg, sig) <= 0)
185	0	goto err;
186	0	}
187	0	if (!(cflag & X509_FLAG_NO_AUX)) {
188	0	if (!X509_aux_print(bp, x, 0))
189	0	goto err;
190	0	}
191	0	ret = 1;
192	0	err:
193	0	return ret;
194	0	}
195
196		int X509_ocspid_print(BIO bp, const X509 x)
197	0	{
198	0	unsigned char *der = NULL;
199	0	unsigned char *dertmp;
200	0	int derlen;
201	0	int i;
202	0	unsigned char SHA1md[SHA_DIGEST_LENGTH];
203	0	const ASN1_BIT_STRING *keybstr;
204	0	const X509_NAME *subj;
205	0	EVP_MD *md = NULL;
206
207	0	if (x == NULL \|\| bp == NULL)
208	0	return 0;
209		/*
210		* display the hash of the subject as it would appear in OCSP requests
211		*/
212	0	if (BIO_printf(bp, " Subject OCSP hash: ") <= 0)
213	0	goto err;
214	0	subj = X509_get_subject_name(x);
215	0	derlen = i2d_X509_NAME(subj, NULL);
216	0	if (derlen <= 0)
217	0	goto err;
218	0	if ((der = dertmp = OPENSSL_malloc(derlen)) == NULL)
219	0	goto err;
220	0	if (i2d_X509_NAME(subj, &dertmp) < 0)
221	0	goto err;
222
223	0	md = EVP_MD_fetch(x->libctx, SN_sha1, x->propq);
224	0	if (md == NULL)
225	0	goto err;
226	0	if (!EVP_Digest(der, derlen, SHA1md, NULL, md, NULL))
227	0	goto err;
228	0	for (i = 0; i < SHA_DIGEST_LENGTH; i++) {
229	0	if (BIO_printf(bp, "%02X", SHA1md[i]) <= 0)
230	0	goto err;
231	0	}
232	0	OPENSSL_free(der);
233	0	der = NULL;
234
235		/*
236		* display the hash of the public key as it would appear in OCSP requests
237		*/
238	0	if (BIO_printf(bp, "\n Public key OCSP hash: ") <= 0)
239	0	goto err;
240
241	0	keybstr = X509_get0_pubkey_bitstr(x);
242
243	0	if (keybstr == NULL)
244	0	goto err;
245
246	0	if (!EVP_Digest(ASN1_STRING_get0_data(keybstr),
247	0	ASN1_STRING_length(keybstr), SHA1md, NULL, md, NULL))
248	0	goto err;
249	0	for (i = 0; i < SHA_DIGEST_LENGTH; i++) {
250	0	if (BIO_printf(bp, "%02X", SHA1md[i]) <= 0)
251	0	goto err;
252	0	}
253	0	BIO_printf(bp, "\n");
254	0	EVP_MD_free(md);
255
256	0	return 1;
257	0	err:
258	0	OPENSSL_free(der);
259	0	EVP_MD_free(md);
260	0	return 0;
261	0	}
262
263		int X509_signature_dump(BIO bp, const ASN1_STRING sig, int indent)
264	0	{
265	0	const unsigned char *s;
266	0	int i, n;
267
268	0	n = sig->length;
269	0	s = sig->data;
270	0	for (i = 0; i < n; i++) {
271	0	if ((i % 24) == 0) {
272	0	if (i > 0 && BIO_write(bp, "\n", 1) <= 0)
273	0	return 0;
274	0	if (BIO_indent(bp, indent, indent) <= 0)
275	0	return 0;
276	0	}
277	0	if (BIO_printf(bp, "%02x%s", s[i], ((i + 1) == n) ? "" : ":") <= 0)
278	0	return 0;
279	0	}
280	0	if (BIO_write(bp, "\n", 1) != 1)
281	0	return 0;
282
283	0	return 1;
284	0	}
285
286		int X509_signature_print(BIO bp, const X509_ALGOR sigalg,
287		const ASN1_STRING *sig)
288	0	{
289	0	#ifndef OPENSSL_NO_DEPRECATED_3_6
290	0	int sig_nid;
291	0	#endif
292	0	int indent = 4;
293	0	if (BIO_printf(bp, "%*sSignature Algorithm: ", indent, "") <= 0)
294	0	return 0;
295	0	if (i2a_ASN1_OBJECT(bp, sigalg->algorithm) <= 0)
296	0	return 0;
297
298	0	if (sig && BIO_printf(bp, "\n%*sSignature Value:", indent, "") <= 0)
299	0	return 0;
300	0	#ifndef OPENSSL_NO_DEPRECATED_3_6
301	0	sig_nid = OBJ_obj2nid(sigalg->algorithm);
302	0	if (sig_nid != NID_undef) {
303	0	int pkey_nid, dig_nid;
304	0	const EVP_PKEY_ASN1_METHOD *ameth;
305	0	if (OBJ_find_sigid_algs(sig_nid, &dig_nid, &pkey_nid)) {
306	0	ameth = evp_pkey_asn1_find(pkey_nid);
307	0	if (ameth && ameth->sig_print)
308	0	return ameth->sig_print(bp, sigalg, sig, indent + 4, 0);
309	0	}
310	0	}
311	0	#endif
312	0	if (BIO_write(bp, "\n", 1) != 1)
313	0	return 0;
314	0	if (sig)
315	0	return X509_signature_dump(bp, sig, indent + 4);
316	0	return 1;
317	0	}
318
319		int X509_aux_print(BIO out, const X509 x, int indent)
320	0	{
321	0	char oidstr[80], first;
322	0	STACK_OF(ASN1_OBJECT) trust, reject;
323	0	const unsigned char alias, keyid;
324	0	int keyidlen;
325	0	int i;
326	0	if (X509_trusted(x) == 0)
327	0	return 1;
328	0	trust = X509_get0_trust_objects(x);
329	0	reject = X509_get0_reject_objects(x);
330	0	if (trust) {
331	0	first = 1;
332	0	BIO_printf(out, "%sTrusted Uses:\n%s", indent, "", indent + 2, "");
333	0	for (i = 0; i < sk_ASN1_OBJECT_num(trust); i++) {
334	0	if (!first)
335	0	BIO_puts(out, ", ");
336	0	else
337	0	first = 0;
338	0	OBJ_obj2txt(oidstr, sizeof(oidstr),
339	0	sk_ASN1_OBJECT_value(trust, i), 0);
340	0	BIO_puts(out, oidstr);
341	0	}
342	0	BIO_puts(out, "\n");
343	0	} else
344	0	BIO_printf(out, "%*sNo Trusted Uses.\n", indent, "");
345	0	if (reject) {
346	0	first = 1;
347	0	BIO_printf(out, "%sRejected Uses:\n%s", indent, "", indent + 2, "");
348	0	for (i = 0; i < sk_ASN1_OBJECT_num(reject); i++) {
349	0	if (!first)
350	0	BIO_puts(out, ", ");
351	0	else
352	0	first = 0;
353	0	OBJ_obj2txt(oidstr, sizeof(oidstr),
354	0	sk_ASN1_OBJECT_value(reject, i), 0);
355	0	BIO_puts(out, oidstr);
356	0	}
357	0	BIO_puts(out, "\n");
358	0	} else
359	0	BIO_printf(out, "%*sNo Rejected Uses.\n", indent, "");
360	0	alias = X509_alias_get0(x, &i);
361	0	if (alias)
362	0	BIO_printf(out, "%sAlias: %.s\n", indent, "", i, alias);
363	0	keyid = X509_keyid_get0(x, &keyidlen);
364	0	if (keyid) {
365	0	BIO_printf(out, "%*sKey Id: ", indent, "");
366	0	for (i = 0; i < keyidlen; i++)
367	0	BIO_printf(out, "%s%02X", i ? ":" : "", keyid[i]);
368	0	BIO_write(out, "\n", 1);
369	0	}
370	0	return 1;
371	0	}
372
373		/*
374		* Helper functions for improving certificate verification error diagnostics
375		*/
376
377		int ossl_x509_print_ex_brief(BIO bio, X509 cert, unsigned long neg_cflags)
378	0	{
379	0	unsigned long flags = ASN1_STRFLGS_RFC2253 \| ASN1_STRFLGS_ESC_QUOTE \| XN_FLAG_SEP_CPLUS_SPC \| XN_FLAG_FN_SN;
380	0	X509_VERIFY_PARAM *vpm = X509_VERIFY_PARAM_new();
381	0	int error, ret = 0;
382
383	0	if (vpm == NULL) {
384	0	ret = BIO_printf(bio, " (malloc failed)\n") > 0;
385	0	goto err;
386	0	}
387	0	if (cert == NULL) {
388	0	ret = BIO_printf(bio, " (no certificate)\n") > 0;
389	0	goto err;
390	0	}
391	0	if (BIO_printf(bio, " certificate\n") <= 0
392	0	\|\| !X509_print_ex(bio, cert, flags, ~X509_FLAG_NO_SUBJECT))
393	0	goto err;
394	0	if (X509_check_issued((X509 *)cert, cert) == X509_V_OK) {
395	0	if (BIO_printf(bio, " self-issued\n") <= 0)
396	0	goto err;
397	0	} else {
398	0	if (BIO_printf(bio, " ") <= 0
399	0	\|\| !X509_print_ex(bio, cert, flags, ~X509_FLAG_NO_ISSUER))
400	0	goto err;
401	0	}
402	0	if (!X509_print_ex(bio, cert, flags,
403	0	~(X509_FLAG_NO_SERIAL \| X509_FLAG_NO_VALIDITY)))
404	0	goto err;
405
406	0	if (!X509_check_certificate_times(vpm, cert, &error)) {
407	0	char msg[128];
408
409	0	ERR_error_string_n(error, msg, sizeof(msg));
410	0	if (BIO_printf(bio, " %s\n", msg) <= 0)
411	0	goto err;
412	0	}
413	0	ret = X509_print_ex(bio, cert, flags,
414	0	~neg_cflags & ~X509_FLAG_EXTENSIONS_ONLY_KID);
415
416	0	err:
417	0	X509_VERIFY_PARAM_free(vpm);
418	0	return ret;
419	0	}
420
421		static int print_certs(BIO bio, const STACK_OF(X509) certs)
422	0	{
423	0	int i;
424
425	0	if (certs == NULL \|\| sk_X509_num(certs) <= 0)
426	0	return BIO_printf(bio, " (no certificates)\n") >= 0;
427
428	0	for (i = 0; i < sk_X509_num(certs); i++) {
429	0	X509 *cert = sk_X509_value(certs, i);
430
431	0	if (cert != NULL) {
432	0	if (!ossl_x509_print_ex_brief(bio, cert, 0))
433	0	return 0;
434	0	if (!X509V3_extensions_print(bio, NULL,
435	0	X509_get0_extensions(cert),
436	0	X509_FLAG_EXTENSIONS_ONLY_KID, 8))
437	0	return 0;
438	0	}
439	0	}
440	0	return 1;
441	0	}
442
443		static int print_store_certs(BIO bio, X509_STORE store)
444	0	{
445	0	if (store != NULL) {
446	0	STACK_OF(X509) *certs = X509_STORE_get1_all_certs(store);
447	0	int ret = print_certs(bio, certs);
448
449	0	OSSL_STACK_OF_X509_free(certs);
450	0	return ret;
451	0	} else {
452	0	return BIO_printf(bio, " (no trusted store)\n") >= 0;
453	0	}
454	0	}
455
456		/* Extend the error queue with details on a failed cert verification */
457		int X509_STORE_CTX_print_verify_cb(int ok, X509_STORE_CTX *ctx)
458	0	{
459	0	if (ok == 0 && ctx != NULL) {
460	0	int cert_error = X509_STORE_CTX_get_error(ctx);
461	0	BIO bio = BIO_new(BIO_s_mem()); / may be NULL */
462
463	0	if (bio == NULL)
464	0	return 0;
465	0	BIO_printf(bio, "%s at depth = %d error = %d (%s)\n",
466	0	X509_STORE_CTX_get0_parent_ctx(ctx) != NULL
467	0	? "CRL path validation"
468	0	: "Certificate verification",
469	0	X509_STORE_CTX_get_error_depth(ctx),
470	0	cert_error, X509_verify_cert_error_string(cert_error));
471	0	{
472	0	X509_STORE *ts = X509_STORE_CTX_get0_store(ctx);
473	0	X509_VERIFY_PARAM *vpm = X509_STORE_get0_param(ts);
474	0	char *str;
475	0	int idx = 0;
476
477	0	switch (cert_error) {
478	0	case X509_V_ERR_HOSTNAME_MISMATCH:
479	0	BIO_printf(bio, "Expected hostname(s) = ");
480	0	while ((str = X509_VERIFY_PARAM_get0_host(vpm, idx++)) != NULL)
481	0	BIO_printf(bio, "%s%s", idx == 1 ? "" : ", ", str);
482	0	BIO_printf(bio, "\n");
483	0	break;
484	0	case X509_V_ERR_EMAIL_MISMATCH:
485	0	str = X509_VERIFY_PARAM_get0_email(vpm);
486	0	if (str != NULL)
487	0	BIO_printf(bio, "Expected email address = %s\n", str);
488	0	break;
489	0	case X509_V_ERR_IP_ADDRESS_MISMATCH:
490	0	str = X509_VERIFY_PARAM_get1_ip_asc(vpm);
491	0	if (str != NULL)
492	0	BIO_printf(bio, "Expected IP address = %s\n", str);
493	0	OPENSSL_free(str);
494	0	break;
495	0	default:
496	0	break;
497	0	}
498	0	}
499
500	0	BIO_printf(bio, "Failure for:\n");
501	0	ossl_x509_print_ex_brief(bio, X509_STORE_CTX_get_current_cert(ctx),
502	0	X509_FLAG_NO_EXTENSIONS);
503	0	if (cert_error == X509_V_ERR_CERT_UNTRUSTED
504	0	\|\| cert_error == X509_V_ERR_DEPTH_ZERO_SELF_SIGNED_CERT
505	0	\|\| cert_error == X509_V_ERR_SELF_SIGNED_CERT_IN_CHAIN
506	0	\|\| cert_error == X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT
507	0	\|\| cert_error == X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT_LOCALLY
508	0	\|\| cert_error == X509_V_ERR_UNABLE_TO_GET_CRL_ISSUER
509	0	\|\| cert_error == X509_V_ERR_STORE_LOOKUP) {
510	0	BIO_printf(bio, "Non-trusted certs:\n");
511	0	print_certs(bio, X509_STORE_CTX_get0_untrusted(ctx));
512	0	BIO_printf(bio, "Certs in trust store:\n");
513	0	print_store_certs(bio, X509_STORE_CTX_get0_store(ctx));
514	0	}
515	0	ERR_raise(ERR_LIB_X509, X509_R_CERTIFICATE_VERIFICATION_FAILED);
516	0	ERR_add_error_mem_bio("\n", bio);
517	0	BIO_free(bio);
518	0	}
519
520	0	return ok;
521	0	}
522
523		/*
524		* Prints serial numbers in decimal and hexadecimal. The indent argument is only
525		* used if the serial number is too large to fit in an int64_t.
526		*/
527		int ossl_serial_number_print(BIO out, const ASN1_INTEGER bs, int indent)
528	0	{
529	0	int i, ok;
530	0	int64_t l;
531	0	uint64_t ul;
532	0	const char *neg;
533
534	0	if (bs->length == 0) {
535	0	if (BIO_puts(out, " (Empty)") <= 0)
536	0	return -1;
537	0	return 0;
538	0	}
539
540	0	ERR_set_mark();
541	0	ok = ASN1_INTEGER_get_int64(&l, bs);
542	0	ERR_pop_to_mark();
543
544	0	if (ok) { /* Reading an int64_t succeeded: print decimal and hex. */
545	0	if (bs->type == V_ASN1_NEG_INTEGER) {
546	0	ul = 0 - (uint64_t)l;
547	0	neg = "-";
548	0	} else {
549	0	ul = l;
550	0	neg = "";
551	0	}
552	0	if (BIO_printf(out, " %s%ju (%s0x%jx)", neg, ul, neg, ul) <= 0)
553	0	return -1;
554	0	} else { /* Reading an int64_t failed: just print hex. */
555	0	neg = (bs->type == V_ASN1_NEG_INTEGER) ? " (Negative)" : "";
556	0	if (BIO_printf(out, "\n%*s%s", indent, "", neg) <= 0)
557	0	return -1;
558
559	0	for (i = 0; i < bs->length - 1; i++) {
560	0	if (BIO_printf(out, "%02x%c", bs->data[i], ':') <= 0)
561	0	return -1;
562	0	}
563	0	if (BIO_printf(out, "%02x", bs->data[i]) <= 0)
564	0	return -1;
565	0	}
566	0	return 0;
567	0	}