/*

 * Copyright 1995-2018 The OpenSSL Project Authors. All Rights Reserved.

 * Copyright 2005 Nokia. All rights reserved.

 *

 * Licensed under the OpenSSL license (the "License").  You may not use

 * this file except in compliance with the License.  You can obtain a copy

 * in the file LICENSE in the source distribution or at

 * https://www.openssl.org/source/license.html

 */

#include <stdio.h>

#include <openssl/buffer.h>

#include "ssl_local.h"

#ifndef OPENSSL_NO_STDIO

int SSL_SESSION_print_fp(FILE *fp, const SSL_SESSION *x)

{

    BIO *b;

    int ret;

    if ((b = BIO_new(BIO_s_file())) == NULL) {

        SSLerr(SSL_F_SSL_SESSION_PRINT_FP, ERR_R_BUF_LIB);

        return 0;

    }

    BIO_set_fp(b, fp, BIO_NOCLOSE);

    ret = SSL_SESSION_print(b, x);

    BIO_free(b);

    return ret;

}

#endif

int SSL_SESSION_print(BIO *bp, const SSL_SESSION *x)

{

    size_t i;

    const char *s;

    int istls13;

    if (x == NULL)

        goto err;

    istls13 = (x->ssl_version == TLS1_3_VERSION);

    if (BIO_puts(bp, "SSL-Session:\n") <= 0)

        goto err;

    s = ssl_protocol_to_string(x->ssl_version);

    if (BIO_printf(bp, "    Protocol  : %s\n", s) <= 0)

        goto err;

    if (x->cipher == NULL) {

        if (((x->cipher_id) & 0xff000000) == 0x02000000) {

            if (BIO_printf(bp, "    Cipher    : %06lX\n",

                           x->cipher_id & 0xffffff) <= 0)

                goto err;

        } else {

            if (BIO_printf(bp, "    Cipher    : %04lX\n",

                           x->cipher_id & 0xffff) <= 0)

                goto err;

        }

    } else {

        if (BIO_printf(bp, "    Cipher    : %s\n",

                       ((x->cipher->name == NULL) ? "unknown"

                                                  : x->cipher->name)) <= 0)

            goto err;

    }

    if (BIO_puts(bp, "    Session-ID: ") <= 0)

        goto err;

    for (i = 0; i < x->session_id_length; i++) {

        if (BIO_printf(bp, "%02X", x->session_id[i]) <= 0)

            goto err;

    }

    if (BIO_puts(bp, "\n    Session-ID-ctx: ") <= 0)

        goto err;

    for (i = 0; i < x->sid_ctx_length; i++) {

        if (BIO_printf(bp, "%02X", x->sid_ctx[i]) <= 0)

            goto err;

    }

    if (istls13) {

        if (BIO_puts(bp, "\n    Resumption PSK: ") <= 0)

            goto err;

    } else if (BIO_puts(bp, "\n    Master-Key: ") <= 0)

        goto err;

    for (i = 0; i < x->master_key_length; i++) {

        if (BIO_printf(bp, "%02X", x->master_key[i]) <= 0)

            goto err;

    }

#ifndef OPENSSL_NO_PSK

    if (BIO_puts(bp, "\n    PSK identity: ") <= 0)

        goto err;

    if (BIO_printf(bp, "%s", x->psk_identity ? x->psk_identity : "None") <= 0)

        goto err;

    if (BIO_puts(bp, "\n    PSK identity hint: ") <= 0)

        goto err;

    if (BIO_printf

        (bp, "%s", x->psk_identity_hint ? x->psk_identity_hint : "None") <= 0)

        goto err;

#endif

#ifndef OPENSSL_NO_SRP

    if (BIO_puts(bp, "\n    SRP username: ") <= 0)

        goto err;

    if (BIO_printf(bp, "%s", x->srp_username ? x->srp_username : "None") <= 0)

        goto err;

#endif

    if (x->ext.tick_lifetime_hint) {

        if (BIO_printf(bp,

                       "\n    TLS session ticket lifetime hint: %ld (seconds)",

                       x->ext.tick_lifetime_hint) <= 0)

            goto err;

    }

    if (x->ext.tick) {

        if (BIO_puts(bp, "\n    TLS session ticket:\n") <= 0)

            goto err;

        /* TODO(size_t): Convert this call */

        if (BIO_dump_indent

            (bp, (const char *)x->ext.tick, (int)x->ext.ticklen, 4)

            <= 0)

            goto err;

    }

#ifndef OPENSSL_NO_COMP

    if (x->compress_meth != 0) {

        SSL_COMP *comp = NULL;

        if (!ssl_cipher_get_evp(x, NULL, NULL, NULL, NULL, &comp, 0))

            goto err;

        if (comp == NULL) {

            if (BIO_printf(bp, "\n    Compression: %d", x->compress_meth) <= 0)

                goto err;

        } else {

            if (BIO_printf(bp, "\n    Compression: %d (%s)", comp->id,

                           comp->name) <= 0)

                goto err;

        }

    }

#endif

    if (x->time != 0L) {

        if (BIO_printf(bp, "\n    Start Time: %ld", x->time) <= 0)

            goto err;

    }

    if (x->timeout != 0L) {

        if (BIO_printf(bp, "\n    Timeout   : %ld (sec)", x->timeout) <= 0)

            goto err;

    }

    if (BIO_puts(bp, "\n") <= 0)

        goto err;

    if (BIO_puts(bp, "    Verify return code: ") <= 0)

        goto err;

    if (BIO_printf(bp, "%ld (%s)\n", x->verify_result,

                   X509_verify_cert_error_string(x->verify_result)) <= 0)

        goto err;

    if (BIO_printf(bp, "    Extended master secret: %s\n",

                   x->flags & SSL_SESS_FLAG_EXTMS ? "yes" : "no") <= 0)

        goto err;

    if (istls13) {

        if (BIO_printf(bp, "    Max Early Data: %u\n",

                       x->ext.max_early_data) <= 0)

            goto err;

    }

    return 1;

 err:

    return 0;

}

/*

 * print session id and master key in NSS keylog format (RSA

 * Session-ID:<session id> Master-Key:<master key>)

 */

int SSL_SESSION_print_keylog(BIO *bp, const SSL_SESSION *x)

{

    size_t i;

    if (x == NULL)

        goto err;

    if (x->session_id_length == 0 || x->master_key_length == 0)

        goto err;

    /*

     * the RSA prefix is required by the format's definition although there's

     * nothing RSA-specific in the output, therefore, we don't have to check if

     * the cipher suite is based on RSA

     */

    if (BIO_puts(bp, "RSA ") <= 0)

        goto err;

    if (BIO_puts(bp, "Session-ID:") <= 0)

        goto err;

    for (i = 0; i < x->session_id_length; i++) {

        if (BIO_printf(bp, "%02X", x->session_id[i]) <= 0)

            goto err;

    }

    if (BIO_puts(bp, " Master-Key:") <= 0)

        goto err;

    for (i = 0; i < x->master_key_length; i++) {

        if (BIO_printf(bp, "%02X", x->master_key[i]) <= 0)

            goto err;

    }

    if (BIO_puts(bp, "\n") <= 0)

        goto err;

    return 1;

 err:

    return 0;

}