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

Source (jump to first uncovered line)
/*
 * Copyright 1995-2022 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"

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, 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) {
        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, 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 mlch = ' ';
    int nmindent = 0, printok = 0;
    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;
        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 (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)
            < 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)) {
        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, 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;
    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;
    i2d_X509_NAME(subj, &dertmp);

    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 % 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, &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;

    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 & ~X509_FLAG_EXTENSIONS_ONLY_KID);
}

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;
}

Coverage Report

Created: 2023-06-08 06:40

Line	Count	Source (jump to first uncovered line)
1		/*
2		* Copyright 1995-2022 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
20		void OSSL_STACK_OF_X509_free(STACK_OF(X509) *certs)
21	0	{
22	0	sk_X509_pop_free(certs, X509_free);
23	0	}
24
25		#ifndef OPENSSL_NO_STDIO
26		int X509_print_fp(FILE fp, X509 x)
27	0	{
28	0	return X509_print_ex_fp(fp, x, XN_FLAG_COMPAT, X509_FLAG_COMPAT);
29	0	}
30
31		int X509_print_ex_fp(FILE fp, X509 x, unsigned long nmflag,
32		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, 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, X509 x, unsigned long nmflags,
54		unsigned long cflag)
55	0	{
56	0	long l;
57	0	int ret = 0, i;
58	0	char mlch = ' ';
59	0	int nmindent = 0, printok = 0;
60	0	EVP_PKEY *pkey = NULL;
61	0	const char *neg;
62
63	0	if ((nmflags & XN_FLAG_SEP_MASK) == XN_FLAG_SEP_MULTILINE) {
64	0	mlch = '\n';
65	0	nmindent = 12;
66	0	}
67
68	0	if (nmflags == X509_FLAG_COMPAT) {
69	0	nmindent = 16;
70	0	printok = 1;
71	0	}
72
73	0	if (!(cflag & X509_FLAG_NO_HEADER)) {
74	0	if (BIO_write(bp, "Certificate:\n", 13) <= 0)
75	0	goto err;
76	0	if (BIO_write(bp, " Data:\n", 10) <= 0)
77	0	goto err;
78	0	}
79	0	if (!(cflag & X509_FLAG_NO_VERSION)) {
80	0	l = X509_get_version(x);
81	0	if (l >= X509_VERSION_1 && l <= X509_VERSION_3) {
82	0	if (BIO_printf(bp, "%8sVersion: %ld (0x%lx)\n", "", l + 1, (unsigned long)l) <= 0)
83	0	goto err;
84	0	} else {
85	0	if (BIO_printf(bp, "%8sVersion: Unknown (%ld)\n", "", l) <= 0)
86	0	goto err;
87	0	}
88	0	}
89	0	if (!(cflag & X509_FLAG_NO_SERIAL)) {
90	0	const ASN1_INTEGER *bs = X509_get0_serialNumber(x);
91
92	0	if (BIO_write(bp, " Serial Number:", 22) <= 0)
93	0	goto err;
94
95	0	if (bs->length <= (int)sizeof(long)) {
96	0	ERR_set_mark();
97	0	l = ASN1_INTEGER_get(bs);
98	0	ERR_pop_to_mark();
99	0	} else {
100	0	l = -1;
101	0	}
102	0	if (l != -1) {
103	0	unsigned long ul;
104	0	if (bs->type == V_ASN1_NEG_INTEGER) {
105	0	ul = 0 - (unsigned long)l;
106	0	neg = "-";
107	0	} else {
108	0	ul = l;
109	0	neg = "";
110	0	}
111	0	if (BIO_printf(bp, " %s%lu (%s0x%lx)\n", neg, ul, neg, ul) <= 0)
112	0	goto err;
113	0	} else {
114	0	neg = (bs->type == V_ASN1_NEG_INTEGER) ? " (Negative)" : "";
115	0	if (BIO_printf(bp, "\n%12s%s", "", neg) <= 0)
116	0	goto err;
117
118	0	for (i = 0; i < bs->length; i++) {
119	0	if (BIO_printf(bp, "%02x%c", bs->data[i],
120	0	((i + 1 == bs->length) ? '\n' : ':')) <= 0)
121	0	goto err;
122	0	}
123	0	}
124
125	0	}
126
127	0	if (!(cflag & X509_FLAG_NO_SIGNAME)) {
128	0	const X509_ALGOR *tsig_alg = X509_get0_tbs_sigalg(x);
129
130	0	if (BIO_puts(bp, " ") <= 0)
131	0	goto err;
132	0	if (X509_signature_print(bp, tsig_alg, NULL) <= 0)
133	0	goto err;
134	0	}
135
136	0	if (!(cflag & X509_FLAG_NO_ISSUER)) {
137	0	if (BIO_printf(bp, " Issuer:%c", mlch) <= 0)
138	0	goto err;
139	0	if (X509_NAME_print_ex(bp, X509_get_issuer_name(x), nmindent, nmflags)
140	0	< printok)
141	0	goto err;
142	0	if (BIO_write(bp, "\n", 1) <= 0)
143	0	goto err;
144	0	}
145	0	if (!(cflag & X509_FLAG_NO_VALIDITY)) {
146	0	if (BIO_write(bp, " Validity\n", 17) <= 0)
147	0	goto err;
148	0	if (BIO_write(bp, " Not Before: ", 24) <= 0)
149	0	goto err;
150	0	if (ossl_asn1_time_print_ex(bp, X509_get0_notBefore(x), ASN1_DTFLGS_RFC822) == 0)
151	0	goto err;
152	0	if (BIO_write(bp, "\n Not After : ", 25) <= 0)
153	0	goto err;
154	0	if (ossl_asn1_time_print_ex(bp, X509_get0_notAfter(x), ASN1_DTFLGS_RFC822) == 0)
155	0	goto err;
156	0	if (BIO_write(bp, "\n", 1) <= 0)
157	0	goto err;
158	0	}
159	0	if (!(cflag & X509_FLAG_NO_SUBJECT)) {
160	0	if (BIO_printf(bp, " Subject:%c", mlch) <= 0)
161	0	goto err;
162	0	if (X509_NAME_print_ex
163	0	(bp, X509_get_subject_name(x), nmindent, nmflags) < printok)
164	0	goto err;
165	0	if (BIO_write(bp, "\n", 1) <= 0)
166	0	goto err;
167	0	}
168	0	if (!(cflag & X509_FLAG_NO_PUBKEY)) {
169	0	X509_PUBKEY *xpkey = X509_get_X509_PUBKEY(x);
170	0	ASN1_OBJECT *xpoid;
171	0	X509_PUBKEY_get0_param(&xpoid, NULL, NULL, NULL, xpkey);
172	0	if (BIO_write(bp, " Subject Public Key Info:\n", 33) <= 0)
173	0	goto err;
174	0	if (BIO_printf(bp, "%12sPublic Key Algorithm: ", "") <= 0)
175	0	goto err;
176	0	if (i2a_ASN1_OBJECT(bp, xpoid) <= 0)
177	0	goto err;
178	0	if (BIO_puts(bp, "\n") <= 0)
179	0	goto err;
180
181	0	pkey = X509_get0_pubkey(x);
182	0	if (pkey == NULL) {
183	0	BIO_printf(bp, "%12sUnable to load Public Key\n", "");
184	0	ERR_print_errors(bp);
185	0	} else {
186	0	EVP_PKEY_print_public(bp, pkey, 16, NULL);
187	0	}
188	0	}
189
190	0	if (!(cflag & X509_FLAG_NO_IDS)) {
191	0	const ASN1_BIT_STRING iuid, suid;
192	0	X509_get0_uids(x, &iuid, &suid);
193	0	if (iuid != NULL) {
194	0	if (BIO_printf(bp, "%8sIssuer Unique ID: ", "") <= 0)
195	0	goto err;
196	0	if (!X509_signature_dump(bp, iuid, 12))
197	0	goto err;
198	0	}
199	0	if (suid != NULL) {
200	0	if (BIO_printf(bp, "%8sSubject Unique ID: ", "") <= 0)
201	0	goto err;
202	0	if (!X509_signature_dump(bp, suid, 12))
203	0	goto err;
204	0	}
205	0	}
206
207	0	if (!(cflag & X509_FLAG_NO_EXTENSIONS)
208	0	&& !X509V3_extensions_print(bp, "X509v3 extensions",
209	0	X509_get0_extensions(x), cflag, 8))
210	0	goto err;
211
212	0	if (!(cflag & X509_FLAG_NO_SIGDUMP)) {
213	0	const X509_ALGOR *sig_alg;
214	0	const ASN1_BIT_STRING *sig;
215	0	X509_get0_signature(&sig, &sig_alg, x);
216	0	if (X509_signature_print(bp, sig_alg, sig) <= 0)
217	0	goto err;
218	0	}
219	0	if (!(cflag & X509_FLAG_NO_AUX)) {
220	0	if (!X509_aux_print(bp, x, 0))
221	0	goto err;
222	0	}
223	0	ret = 1;
224	0	err:
225	0	return ret;
226	0	}
227
228		int X509_ocspid_print(BIO bp, X509 x)
229	0	{
230	0	unsigned char *der = NULL;
231	0	unsigned char *dertmp;
232	0	int derlen;
233	0	int i;
234	0	unsigned char SHA1md[SHA_DIGEST_LENGTH];
235	0	ASN1_BIT_STRING *keybstr;
236	0	const X509_NAME *subj;
237	0	EVP_MD *md = NULL;
238
239	0	if (x == NULL \|\| bp == NULL)
240	0	return 0;
241		/*
242		* display the hash of the subject as it would appear in OCSP requests
243		*/
244	0	if (BIO_printf(bp, " Subject OCSP hash: ") <= 0)
245	0	goto err;
246	0	subj = X509_get_subject_name(x);
247	0	derlen = i2d_X509_NAME(subj, NULL);
248	0	if (derlen <= 0)
249	0	goto err;
250	0	if ((der = dertmp = OPENSSL_malloc(derlen)) == NULL)
251	0	goto err;
252	0	i2d_X509_NAME(subj, &dertmp);
253
254	0	md = EVP_MD_fetch(x->libctx, SN_sha1, x->propq);
255	0	if (md == NULL)
256	0	goto err;
257	0	if (!EVP_Digest(der, derlen, SHA1md, NULL, md, NULL))
258	0	goto err;
259	0	for (i = 0; i < SHA_DIGEST_LENGTH; i++) {
260	0	if (BIO_printf(bp, "%02X", SHA1md[i]) <= 0)
261	0	goto err;
262	0	}
263	0	OPENSSL_free(der);
264	0	der = NULL;
265
266		/*
267		* display the hash of the public key as it would appear in OCSP requests
268		*/
269	0	if (BIO_printf(bp, "\n Public key OCSP hash: ") <= 0)
270	0	goto err;
271
272	0	keybstr = X509_get0_pubkey_bitstr(x);
273
274	0	if (keybstr == NULL)
275	0	goto err;
276
277	0	if (!EVP_Digest(ASN1_STRING_get0_data(keybstr),
278	0	ASN1_STRING_length(keybstr), SHA1md, NULL, md, NULL))
279	0	goto err;
280	0	for (i = 0; i < SHA_DIGEST_LENGTH; i++) {
281	0	if (BIO_printf(bp, "%02X", SHA1md[i]) <= 0)
282	0	goto err;
283	0	}
284	0	BIO_printf(bp, "\n");
285	0	EVP_MD_free(md);
286
287	0	return 1;
288	0	err:
289	0	OPENSSL_free(der);
290	0	EVP_MD_free(md);
291	0	return 0;
292	0	}
293
294		int X509_signature_dump(BIO bp, const ASN1_STRING sig, int indent)
295	0	{
296	0	const unsigned char *s;
297	0	int i, n;
298
299	0	n = sig->length;
300	0	s = sig->data;
301	0	for (i = 0; i < n; i++) {
302	0	if ((i % 18) == 0) {
303	0	if (i > 0 && BIO_write(bp, "\n", 1) <= 0)
304	0	return 0;
305	0	if (BIO_indent(bp, indent, indent) <= 0)
306	0	return 0;
307	0	}
308	0	if (BIO_printf(bp, "%02x%s", s[i], ((i + 1) == n) ? "" : ":") <= 0)
309	0	return 0;
310	0	}
311	0	if (BIO_write(bp, "\n", 1) != 1)
312	0	return 0;
313
314	0	return 1;
315	0	}
316
317		int X509_signature_print(BIO bp, const X509_ALGOR sigalg,
318		const ASN1_STRING *sig)
319	0	{
320	0	int sig_nid;
321	0	int indent = 4;
322	0	if (BIO_printf(bp, "%*sSignature Algorithm: ", indent, "") <= 0)
323	0	return 0;
324	0	if (i2a_ASN1_OBJECT(bp, sigalg->algorithm) <= 0)
325	0	return 0;
326
327	0	if (sig && BIO_printf(bp, "\n%*sSignature Value:", indent, "") <= 0)
328	0	return 0;
329	0	sig_nid = OBJ_obj2nid(sigalg->algorithm);
330	0	if (sig_nid != NID_undef) {
331	0	int pkey_nid, dig_nid;
332	0	const EVP_PKEY_ASN1_METHOD *ameth;
333	0	if (OBJ_find_sigid_algs(sig_nid, &dig_nid, &pkey_nid)) {
334	0	ameth = EVP_PKEY_asn1_find(NULL, pkey_nid);
335	0	if (ameth && ameth->sig_print)
336	0	return ameth->sig_print(bp, sigalg, sig, indent + 4, 0);
337	0	}
338	0	}
339	0	if (BIO_write(bp, "\n", 1) != 1)
340	0	return 0;
341	0	if (sig)
342	0	return X509_signature_dump(bp, sig, indent + 4);
343	0	return 1;
344	0	}
345
346		int X509_aux_print(BIO out, X509 x, int indent)
347	0	{
348	0	char oidstr[80], first;
349	0	STACK_OF(ASN1_OBJECT) trust, reject;
350	0	const unsigned char alias, keyid;
351	0	int keyidlen;
352	0	int i;
353	0	if (X509_trusted(x) == 0)
354	0	return 1;
355	0	trust = X509_get0_trust_objects(x);
356	0	reject = X509_get0_reject_objects(x);
357	0	if (trust) {
358	0	first = 1;
359	0	BIO_printf(out, "%sTrusted Uses:\n%s", indent, "", indent + 2, "");
360	0	for (i = 0; i < sk_ASN1_OBJECT_num(trust); i++) {
361	0	if (!first)
362	0	BIO_puts(out, ", ");
363	0	else
364	0	first = 0;
365	0	OBJ_obj2txt(oidstr, sizeof(oidstr),
366	0	sk_ASN1_OBJECT_value(trust, i), 0);
367	0	BIO_puts(out, oidstr);
368	0	}
369	0	BIO_puts(out, "\n");
370	0	} else
371	0	BIO_printf(out, "%*sNo Trusted Uses.\n", indent, "");
372	0	if (reject) {
373	0	first = 1;
374	0	BIO_printf(out, "%sRejected Uses:\n%s", indent, "", indent + 2, "");
375	0	for (i = 0; i < sk_ASN1_OBJECT_num(reject); i++) {
376	0	if (!first)
377	0	BIO_puts(out, ", ");
378	0	else
379	0	first = 0;
380	0	OBJ_obj2txt(oidstr, sizeof(oidstr),
381	0	sk_ASN1_OBJECT_value(reject, i), 0);
382	0	BIO_puts(out, oidstr);
383	0	}
384	0	BIO_puts(out, "\n");
385	0	} else
386	0	BIO_printf(out, "%*sNo Rejected Uses.\n", indent, "");
387	0	alias = X509_alias_get0(x, &i);
388	0	if (alias)
389	0	BIO_printf(out, "%sAlias: %.s\n", indent, "", i, alias);
390	0	keyid = X509_keyid_get0(x, &keyidlen);
391	0	if (keyid) {
392	0	BIO_printf(out, "%*sKey Id: ", indent, "");
393	0	for (i = 0; i < keyidlen; i++)
394	0	BIO_printf(out, "%s%02X", i ? ":" : "", keyid[i]);
395	0	BIO_write(out, "\n", 1);
396	0	}
397	0	return 1;
398	0	}
399
400		/*
401		* Helper functions for improving certificate verification error diagnostics
402		*/
403
404		int ossl_x509_print_ex_brief(BIO bio, X509 cert, unsigned long neg_cflags)
405	0	{
406	0	unsigned long flags = ASN1_STRFLGS_RFC2253 \| ASN1_STRFLGS_ESC_QUOTE \|
407	0	XN_FLAG_SEP_CPLUS_SPC \| XN_FLAG_FN_SN;
408
409	0	if (cert == NULL)
410	0	return BIO_printf(bio, " (no certificate)\n") > 0;
411	0	if (BIO_printf(bio, " certificate\n") <= 0
412	0	\|\| !X509_print_ex(bio, cert, flags, ~X509_FLAG_NO_SUBJECT))
413	0	return 0;
414	0	if (X509_check_issued((X509 *)cert, cert) == X509_V_OK) {
415	0	if (BIO_printf(bio, " self-issued\n") <= 0)
416	0	return 0;
417	0	} else {
418	0	if (BIO_printf(bio, " ") <= 0
419	0	\|\| !X509_print_ex(bio, cert, flags, ~X509_FLAG_NO_ISSUER))
420	0	return 0;
421	0	}
422	0	if (!X509_print_ex(bio, cert, flags,
423	0	~(X509_FLAG_NO_SERIAL \| X509_FLAG_NO_VALIDITY)))
424	0	return 0;
425	0	if (X509_cmp_current_time(X509_get0_notBefore(cert)) > 0)
426	0	if (BIO_printf(bio, " not yet valid\n") <= 0)
427	0	return 0;
428	0	if (X509_cmp_current_time(X509_get0_notAfter(cert)) < 0)
429	0	if (BIO_printf(bio, " no more valid\n") <= 0)
430	0	return 0;
431	0	return X509_print_ex(bio, cert, flags,
432	0	~neg_cflags & ~X509_FLAG_EXTENSIONS_ONLY_KID);
433	0	}
434
435		static int print_certs(BIO bio, const STACK_OF(X509) certs)
436	0	{
437	0	int i;
438
439	0	if (certs == NULL \|\| sk_X509_num(certs) <= 0)
440	0	return BIO_printf(bio, " (no certificates)\n") >= 0;
441
442	0	for (i = 0; i < sk_X509_num(certs); i++) {
443	0	X509 *cert = sk_X509_value(certs, i);
444
445	0	if (cert != NULL) {
446	0	if (!ossl_x509_print_ex_brief(bio, cert, 0))
447	0	return 0;
448	0	if (!X509V3_extensions_print(bio, NULL,
449	0	X509_get0_extensions(cert),
450	0	X509_FLAG_EXTENSIONS_ONLY_KID, 8))
451	0	return 0;
452	0	}
453	0	}
454	0	return 1;
455	0	}
456
457		static int print_store_certs(BIO bio, X509_STORE store)
458	0	{
459	0	if (store != NULL) {
460	0	STACK_OF(X509) *certs = X509_STORE_get1_all_certs(store);
461	0	int ret = print_certs(bio, certs);
462
463	0	OSSL_STACK_OF_X509_free(certs);
464	0	return ret;
465	0	} else {
466	0	return BIO_printf(bio, " (no trusted store)\n") >= 0;
467	0	}
468	0	}
469
470		/* Extend the error queue with details on a failed cert verification */
471		int X509_STORE_CTX_print_verify_cb(int ok, X509_STORE_CTX *ctx)
472	0	{
473	0	if (ok == 0 && ctx != NULL) {
474	0	int cert_error = X509_STORE_CTX_get_error(ctx);
475	0	BIO bio = BIO_new(BIO_s_mem()); / may be NULL */
476
477	0	if (bio == NULL)
478	0	return 0;
479	0	BIO_printf(bio, "%s at depth = %d error = %d (%s)\n",
480	0	X509_STORE_CTX_get0_parent_ctx(ctx) != NULL
481	0	? "CRL path validation"
482	0	: "Certificate verification",
483	0	X509_STORE_CTX_get_error_depth(ctx),
484	0	cert_error, X509_verify_cert_error_string(cert_error));
485	0	{
486	0	X509_STORE *ts = X509_STORE_CTX_get0_store(ctx);
487	0	X509_VERIFY_PARAM *vpm = X509_STORE_get0_param(ts);
488	0	char *str;
489	0	int idx = 0;
490
491	0	switch (cert_error) {
492	0	case X509_V_ERR_HOSTNAME_MISMATCH:
493	0	BIO_printf(bio, "Expected hostname(s) = ");
494	0	while ((str = X509_VERIFY_PARAM_get0_host(vpm, idx++)) != NULL)
495	0	BIO_printf(bio, "%s%s", idx == 1 ? "" : ", ", str);
496	0	BIO_printf(bio, "\n");
497	0	break;
498	0	case X509_V_ERR_EMAIL_MISMATCH:
499	0	str = X509_VERIFY_PARAM_get0_email(vpm);
500	0	if (str != NULL)
501	0	BIO_printf(bio, "Expected email address = %s\n", str);
502	0	break;
503	0	case X509_V_ERR_IP_ADDRESS_MISMATCH:
504	0	str = X509_VERIFY_PARAM_get1_ip_asc(vpm);
505	0	if (str != NULL)
506	0	BIO_printf(bio, "Expected IP address = %s\n", str);
507	0	OPENSSL_free(str);
508	0	break;
509	0	default:
510	0	break;
511	0	}
512	0	}
513
514	0	BIO_printf(bio, "Failure for:\n");
515	0	ossl_x509_print_ex_brief(bio, X509_STORE_CTX_get_current_cert(ctx),
516	0	X509_FLAG_NO_EXTENSIONS);
517	0	if (cert_error == X509_V_ERR_CERT_UNTRUSTED
518	0	\|\| cert_error == X509_V_ERR_DEPTH_ZERO_SELF_SIGNED_CERT
519	0	\|\| cert_error == X509_V_ERR_SELF_SIGNED_CERT_IN_CHAIN
520	0	\|\| cert_error == X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT
521	0	\|\| cert_error == X509_V_ERR_UNABLE_TO_GET_ISSUER_CERT_LOCALLY
522	0	\|\| cert_error == X509_V_ERR_UNABLE_TO_GET_CRL_ISSUER
523	0	\|\| cert_error == X509_V_ERR_STORE_LOOKUP) {
524	0	BIO_printf(bio, "Non-trusted certs:\n");
525	0	print_certs(bio, X509_STORE_CTX_get0_untrusted(ctx));
526	0	BIO_printf(bio, "Certs in trust store:\n");
527	0	print_store_certs(bio, X509_STORE_CTX_get0_store(ctx));
528	0	}
529	0	ERR_raise(ERR_LIB_X509, X509_R_CERTIFICATE_VERIFICATION_FAILED);
530	0	ERR_add_error_mem_bio("\n", bio);
531	0	BIO_free(bio);
532	0	}
533
534	0	return ok;
535	0	}