[thirdparty/openssl.git] / ssl / ssl_asn1.c

/*
 * Copyright 1995-2017 The OpenSSL Project Authors. All Rights Reserved.
 *
 * Licensed under the OpenSSL license (the "License").  You may not use
 * this file except in compliance with the License.  You can obtain a copy
 * in the file LICENSE in the source distribution or at
 * https://www.openssl.org/source/license.html
 */

/* ====================================================================
 * Copyright 2005 Nokia. All rights reserved.
 *
 * The portions of the attached software ("Contribution") is developed by
 * Nokia Corporation and is licensed pursuant to the OpenSSL open source
 * license.
 *
 * The Contribution, originally written by Mika Kousa and Pasi Eronen of
 * Nokia Corporation, consists of the "PSK" (Pre-Shared Key) ciphersuites
 * support (see RFC 4279) to OpenSSL.
 *
 * No patent licenses or other rights except those expressly stated in
 * the OpenSSL open source license shall be deemed granted or received
 * expressly, by implication, estoppel, or otherwise.
 *
 * No assurances are provided by Nokia that the Contribution does not
 * infringe the patent or other intellectual property rights of any third
 * party or that the license provides you with all the necessary rights
 * to make use of the Contribution.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. IN
 * ADDITION TO THE DISCLAIMERS INCLUDED IN THE LICENSE, NOKIA
 * SPECIFICALLY DISCLAIMS ANY LIABILITY FOR CLAIMS BROUGHT BY YOU OR ANY
 * OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS OR
 * OTHERWISE.
 */

#include <stdio.h>
#include <stdlib.h>
#include "ssl_locl.h"
#include <openssl/asn1t.h>
#include <openssl/x509.h>

typedef struct {
    uint32_t version;
    int32_t ssl_version;
    ASN1_OCTET_STRING *cipher;
    ASN1_OCTET_STRING *comp_id;
    ASN1_OCTET_STRING *master_key;
    ASN1_OCTET_STRING *session_id;
    ASN1_OCTET_STRING *key_arg;
    int64_t time;
    int64_t timeout;
    X509 *peer;
    ASN1_OCTET_STRING *session_id_context;
    int32_t verify_result;
    ASN1_OCTET_STRING *tlsext_hostname;
    uint64_t tlsext_tick_lifetime_hint;
    uint32_t tlsext_tick_age_add;
    ASN1_OCTET_STRING *tlsext_tick;
#ifndef OPENSSL_NO_PSK
    ASN1_OCTET_STRING *psk_identity_hint;
    ASN1_OCTET_STRING *psk_identity;
#endif
#ifndef OPENSSL_NO_SRP
    ASN1_OCTET_STRING *srp_username;
#endif
    uint64_t flags;
    uint32_t max_early_data;
    ASN1_OCTET_STRING *alpn_selected;
} SSL_SESSION_ASN1;

ASN1_SEQUENCE(SSL_SESSION_ASN1) = {
    ASN1_EMBED(SSL_SESSION_ASN1, version, UINT32),
    ASN1_EMBED(SSL_SESSION_ASN1, ssl_version, INT32),
    ASN1_SIMPLE(SSL_SESSION_ASN1, cipher, ASN1_OCTET_STRING),
    ASN1_SIMPLE(SSL_SESSION_ASN1, session_id, ASN1_OCTET_STRING),
    ASN1_SIMPLE(SSL_SESSION_ASN1, master_key, ASN1_OCTET_STRING),
    ASN1_IMP_OPT(SSL_SESSION_ASN1, key_arg, ASN1_OCTET_STRING, 0),
    ASN1_EXP_OPT_EMBED(SSL_SESSION_ASN1, time, ZINT64, 1),
    ASN1_EXP_OPT_EMBED(SSL_SESSION_ASN1, timeout, ZINT64, 2),
    ASN1_EXP_OPT(SSL_SESSION_ASN1, peer, X509, 3),
    ASN1_EXP_OPT(SSL_SESSION_ASN1, session_id_context, ASN1_OCTET_STRING, 4),
    ASN1_EXP_OPT_EMBED(SSL_SESSION_ASN1, verify_result, ZINT32, 5),
    ASN1_EXP_OPT(SSL_SESSION_ASN1, tlsext_hostname, ASN1_OCTET_STRING, 6),
#ifndef OPENSSL_NO_PSK
    ASN1_EXP_OPT(SSL_SESSION_ASN1, psk_identity_hint, ASN1_OCTET_STRING, 7),
    ASN1_EXP_OPT(SSL_SESSION_ASN1, psk_identity, ASN1_OCTET_STRING, 8),
#endif
    ASN1_EXP_OPT_EMBED(SSL_SESSION_ASN1, tlsext_tick_lifetime_hint, ZUINT64, 9),
    ASN1_EXP_OPT(SSL_SESSION_ASN1, tlsext_tick, ASN1_OCTET_STRING, 10),
    ASN1_EXP_OPT(SSL_SESSION_ASN1, comp_id, ASN1_OCTET_STRING, 11),
#ifndef OPENSSL_NO_SRP
    ASN1_EXP_OPT(SSL_SESSION_ASN1, srp_username, ASN1_OCTET_STRING, 12),
#endif
    ASN1_EXP_OPT_EMBED(SSL_SESSION_ASN1, flags, ZUINT64, 13),
    ASN1_EXP_OPT_EMBED(SSL_SESSION_ASN1, tlsext_tick_age_add, ZUINT32, 14),
    ASN1_EXP_OPT_EMBED(SSL_SESSION_ASN1, max_early_data, ZUINT32, 15),
    ASN1_EXP_OPT(SSL_SESSION_ASN1, alpn_selected, ASN1_OCTET_STRING, 16)
} static_ASN1_SEQUENCE_END(SSL_SESSION_ASN1)

IMPLEMENT_STATIC_ASN1_ENCODE_FUNCTIONS(SSL_SESSION_ASN1)

/* Utility functions for i2d_SSL_SESSION */

/* Initialise OCTET STRING from buffer and length */

static void ssl_session_oinit(ASN1_OCTET_STRING **dest, ASN1_OCTET_STRING *os,
                              unsigned char *data, size_t len)
{
    os->data = data;
    os->length = (int)len;
    os->flags = 0;
    *dest = os;
}

/* Initialise OCTET STRING from string */
static void ssl_session_sinit(ASN1_OCTET_STRING **dest, ASN1_OCTET_STRING *os,
                              char *data)
{
    if (data != NULL)
        ssl_session_oinit(dest, os, (unsigned char *)data, strlen(data));
    else
        *dest = NULL;
}

int i2d_SSL_SESSION(SSL_SESSION *in, unsigned char **pp)
{

    SSL_SESSION_ASN1 as;

    ASN1_OCTET_STRING cipher;
    unsigned char cipher_data[2];
    ASN1_OCTET_STRING master_key, session_id, sid_ctx;

#ifndef OPENSSL_NO_COMP
    ASN1_OCTET_STRING comp_id;
    unsigned char comp_id_data;
#endif
    ASN1_OCTET_STRING tlsext_hostname, tlsext_tick;
#ifndef OPENSSL_NO_SRP
    ASN1_OCTET_STRING srp_username;
#endif
#ifndef OPENSSL_NO_PSK
    ASN1_OCTET_STRING psk_identity, psk_identity_hint;
#endif
    ASN1_OCTET_STRING alpn_selected;

    long l;

    if ((in == NULL) || ((in->cipher == NULL) && (in->cipher_id == 0)))
        return 0;

    memset(&as, 0, sizeof(as));

    as.version = SSL_SESSION_ASN1_VERSION;
    as.ssl_version = in->ssl_version;

    if (in->cipher == NULL)
        l = in->cipher_id;
    else
        l = in->cipher->id;
    cipher_data[0] = ((unsigned char)(l >> 8L)) & 0xff;
    cipher_data[1] = ((unsigned char)(l)) & 0xff;

    ssl_session_oinit(&as.cipher, &cipher, cipher_data, 2);

#ifndef OPENSSL_NO_COMP
    if (in->compress_meth) {
        comp_id_data = (unsigned char)in->compress_meth;
        ssl_session_oinit(&as.comp_id, &comp_id, &comp_id_data, 1);
    }
#endif

    ssl_session_oinit(&as.master_key, &master_key,
                      in->master_key, in->master_key_length);

    ssl_session_oinit(&as.session_id, &session_id,
                      in->session_id, in->session_id_length);

    ssl_session_oinit(&as.session_id_context, &sid_ctx,
                      in->sid_ctx, in->sid_ctx_length);

    as.time = in->time;
    as.timeout = in->timeout;
    as.verify_result = in->verify_result;

    as.peer = in->peer;

    ssl_session_sinit(&as.tlsext_hostname, &tlsext_hostname,
                      in->ext.hostname);
    if (in->ext.tick) {
        ssl_session_oinit(&as.tlsext_tick, &tlsext_tick,
                          in->ext.tick, in->ext.ticklen);
    }
    if (in->ext.tick_lifetime_hint > 0)
        as.tlsext_tick_lifetime_hint = in->ext.tick_lifetime_hint;
    as.tlsext_tick_age_add = in->ext.tick_age_add;
#ifndef OPENSSL_NO_PSK
    ssl_session_sinit(&as.psk_identity_hint, &psk_identity_hint,
                      in->psk_identity_hint);
    ssl_session_sinit(&as.psk_identity, &psk_identity, in->psk_identity);
#endif                          /* OPENSSL_NO_PSK */
#ifndef OPENSSL_NO_SRP
    ssl_session_sinit(&as.srp_username, &srp_username, in->srp_username);
#endif                          /* OPENSSL_NO_SRP */

    as.flags = in->flags;
    as.max_early_data = in->ext.max_early_data;

    if (in->ext.alpn_selected == NULL)
        as.alpn_selected = NULL;
    else
        ssl_session_oinit(&as.alpn_selected, &alpn_selected,
                          in->ext.alpn_selected, in->ext.alpn_selected_len);

    return i2d_SSL_SESSION_ASN1(&as, pp);

}

/* Utility functions for d2i_SSL_SESSION */

/* OPENSSL_strndup an OCTET STRING */

static int ssl_session_strndup(char **pdst, ASN1_OCTET_STRING *src)
{
    OPENSSL_free(*pdst);
    *pdst = NULL;
    if (src == NULL)
        return 1;
    *pdst = OPENSSL_strndup((char *)src->data, src->length);
    if (*pdst == NULL)
        return 0;
    return 1;
}

/* Copy an OCTET STRING, return error if it exceeds maximum length */

static int ssl_session_memcpy(unsigned char *dst, size_t *pdstlen,
                              ASN1_OCTET_STRING *src, size_t maxlen)
{
    if (src == NULL) {
        *pdstlen = 0;
        return 1;
    }
    if (src->length < 0 || src->length > (int)maxlen)
        return 0;
    memcpy(dst, src->data, src->length);
    *pdstlen = src->length;
    return 1;
}

SSL_SESSION *d2i_SSL_SESSION(SSL_SESSION **a, const unsigned char **pp,
                             long length)
{
    long id;
    size_t tmpl;
    const unsigned char *p = *pp;
    SSL_SESSION_ASN1 *as = NULL;
    SSL_SESSION *ret = NULL;

    as = d2i_SSL_SESSION_ASN1(NULL, &p, length);
    /* ASN.1 code returns suitable error */
    if (as == NULL)
        goto err;

    if (!a || !*a) {
        ret = SSL_SESSION_new();
        if (ret == NULL)
            goto err;
    } else {
        ret = *a;
    }

    if (as->version != SSL_SESSION_ASN1_VERSION) {
        SSLerr(SSL_F_D2I_SSL_SESSION, SSL_R_UNKNOWN_SSL_VERSION);
        goto err;
    }

    if ((as->ssl_version >> 8) != SSL3_VERSION_MAJOR
        && (as->ssl_version >> 8) != DTLS1_VERSION_MAJOR
        && as->ssl_version != DTLS1_BAD_VER) {
        SSLerr(SSL_F_D2I_SSL_SESSION, SSL_R_UNSUPPORTED_SSL_VERSION);
        goto err;
    }

    ret->ssl_version = (int)as->ssl_version;

    if (as->cipher->length != 2) {
        SSLerr(SSL_F_D2I_SSL_SESSION, SSL_R_CIPHER_CODE_WRONG_LENGTH);
        goto err;
    }

    id = 0x03000000L | ((unsigned long)as->cipher->data[0] << 8L)
                     | (unsigned long)as->cipher->data[1];

    ret->cipher_id = id;
    ret->cipher = ssl3_get_cipher_by_id(id);
    if (ret->cipher == NULL)
        goto err;

    if (!ssl_session_memcpy(ret->session_id, &ret->session_id_length,
                            as->session_id, SSL3_MAX_SSL_SESSION_ID_LENGTH))
        goto err;

    if (!ssl_session_memcpy(ret->master_key, &tmpl,
                            as->master_key, TLS13_MAX_RESUMPTION_MASTER_LENGTH))
        goto err;

    ret->master_key_length = tmpl;

    if (as->time != 0)
        ret->time = as->time;
    else
        ret->time = (unsigned long)time(NULL);

    if (as->timeout != 0)
        ret->timeout = as->timeout;
    else
        ret->timeout = 3;

    X509_free(ret->peer);
    ret->peer = as->peer;
    as->peer = NULL;

    if (!ssl_session_memcpy(ret->sid_ctx, &ret->sid_ctx_length,
                            as->session_id_context, SSL_MAX_SID_CTX_LENGTH))
        goto err;

    /* NB: this defaults to zero which is X509_V_OK */
    ret->verify_result = as->verify_result;

    if (!ssl_session_strndup(&ret->ext.hostname, as->tlsext_hostname))
        goto err;

#ifndef OPENSSL_NO_PSK
    if (!ssl_session_strndup(&ret->psk_identity_hint, as->psk_identity_hint))
        goto err;
    if (!ssl_session_strndup(&ret->psk_identity, as->psk_identity))
        goto err;
#endif

    ret->ext.tick_lifetime_hint = as->tlsext_tick_lifetime_hint;
    ret->ext.tick_age_add = as->tlsext_tick_age_add;
    if (as->tlsext_tick) {
        ret->ext.tick = as->tlsext_tick->data;
        ret->ext.ticklen = as->tlsext_tick->length;
        as->tlsext_tick->data = NULL;
    } else {
        ret->ext.tick = NULL;
    }
#ifndef OPENSSL_NO_COMP
    if (as->comp_id) {
        if (as->comp_id->length != 1) {
            SSLerr(SSL_F_D2I_SSL_SESSION, SSL_R_BAD_LENGTH);
            goto err;
        }
        ret->compress_meth = as->comp_id->data[0];
    } else {
        ret->compress_meth = 0;
    }
#endif

#ifndef OPENSSL_NO_SRP
    if (!ssl_session_strndup(&ret->srp_username, as->srp_username))
        goto err;
#endif                          /* OPENSSL_NO_SRP */
    /* Flags defaults to zero which is fine */
    ret->flags = as->flags;
    ret->ext.max_early_data = as->max_early_data;

    if (as->alpn_selected != NULL) {
        if (!ssl_session_strndup((char **)&ret->ext.alpn_selected,
                                 as->alpn_selected))
            goto err;
        ret->ext.alpn_selected_len = as->alpn_selected->length;
    } else {
        ret->ext.alpn_selected = NULL;
        ret->ext.alpn_selected_len = 0;
    }

    M_ASN1_free_of(as, SSL_SESSION_ASN1);

    if ((a != NULL) && (*a == NULL))
        *a = ret;
    *pp = p;
    return ret;

 err:
    M_ASN1_free_of(as, SSL_SESSION_ASN1);
    if ((a == NULL) || (*a != ret))
        SSL_SESSION_free(ret);
    return NULL;
}
Commit	Line	Data
846e33c7	1	/*
66ecfb54	2	* Copyright 1995-2017 The OpenSSL Project Authors. All Rights Reserved.
d02b48c6	3	*
846e33c7 RS	4	* Licensed under the OpenSSL license (the "License"). You may not use
	5	* this file except in compliance with the License. You can obtain a copy
	6	* in the file LICENSE in the source distribution or at
	7	* https://www.openssl.org/source/license.html
d02b48c6	8	*/
846e33c7	9
ddac1974 NL	10	/* ====================================================================
	11	* Copyright 2005 Nokia. All rights reserved.
	12	*
	13	* The portions of the attached software ("Contribution") is developed by
	14	* Nokia Corporation and is licensed pursuant to the OpenSSL open source
	15	* license.
	16	*
	17	* The Contribution, originally written by Mika Kousa and Pasi Eronen of
	18	* Nokia Corporation, consists of the "PSK" (Pre-Shared Key) ciphersuites
	19	* support (see RFC 4279) to OpenSSL.
	20	*
	21	* No patent licenses or other rights except those expressly stated in
	22	* the OpenSSL open source license shall be deemed granted or received
	23	* expressly, by implication, estoppel, or otherwise.
	24	*
	25	* No assurances are provided by Nokia that the Contribution does not
	26	* infringe the patent or other intellectual property rights of any third
	27	* party or that the license provides you with all the necessary rights
	28	* to make use of the Contribution.
	29	*
	30	* THE SOFTWARE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. IN
	31	* ADDITION TO THE DISCLAIMERS INCLUDED IN THE LICENSE, NOKIA
	32	* SPECIFICALLY DISCLAIMS ANY LIABILITY FOR CLAIMS BROUGHT BY YOU OR ANY
	33	* OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS OR
	34	* OTHERWISE.
	35	*/
d02b48c6 RE	36
	37	#include <stdio.h>
	38	#include <stdlib.h>
7b63c0fa	39	#include "ssl_locl.h"
64f11ee8	40	#include <openssl/asn1t.h>
b1fe6ca1	41	#include <openssl/x509.h>
d02b48c6	42
cc5b6a03	43	typedef struct {
66ecfb54 RL	44	uint32_t version;
66ecfb54 RL	45	int32_t ssl_version;
cc5b6a03 DSH	46	ASN1_OCTET_STRING *cipher;
	47	ASN1_OCTET_STRING *comp_id;
	48	ASN1_OCTET_STRING *master_key;
	49	ASN1_OCTET_STRING *session_id;
cc5b6a03	50	ASN1_OCTET_STRING *key_arg;
66ecfb54 RL	51	int64_t time;
66ecfb54 RL	52	int64_t timeout;
cc5b6a03 DSH	53	X509 *peer;
cc5b6a03 DSH	54	ASN1_OCTET_STRING *session_id_context;
66ecfb54	55	int32_t verify_result;
cc5b6a03	56	ASN1_OCTET_STRING *tlsext_hostname;
66ecfb54 RL	57	uint64_t tlsext_tick_lifetime_hint;
66ecfb54 RL	58	uint32_t tlsext_tick_age_add;
cc5b6a03	59	ASN1_OCTET_STRING *tlsext_tick;
e2010b20	60	#ifndef OPENSSL_NO_PSK
cc5b6a03 DSH	61	ASN1_OCTET_STRING *psk_identity_hint;
	62	ASN1_OCTET_STRING *psk_identity;
	63	#endif
edc032b5	64	#ifndef OPENSSL_NO_SRP
cc5b6a03 DSH	65	ASN1_OCTET_STRING *srp_username;
cc5b6a03 DSH	66	#endif
66ecfb54	67	uint64_t flags;
5d5b3fba	68	uint32_t max_early_data;
f6370040	69	ASN1_OCTET_STRING *alpn_selected;
0f113f3e	70	} SSL_SESSION_ASN1;
d02b48c6	71
cc5b6a03	72	ASN1_SEQUENCE(SSL_SESSION_ASN1) = {
9612e157 RL	73	ASN1_EMBED(SSL_SESSION_ASN1, version, UINT32),
9612e157 RL	74	ASN1_EMBED(SSL_SESSION_ASN1, ssl_version, INT32),
cc5b6a03 DSH	75	ASN1_SIMPLE(SSL_SESSION_ASN1, cipher, ASN1_OCTET_STRING),
	76	ASN1_SIMPLE(SSL_SESSION_ASN1, session_id, ASN1_OCTET_STRING),
	77	ASN1_SIMPLE(SSL_SESSION_ASN1, master_key, ASN1_OCTET_STRING),
cc5b6a03	78	ASN1_IMP_OPT(SSL_SESSION_ASN1, key_arg, ASN1_OCTET_STRING, 0),
9612e157 RL	79	ASN1_EXP_OPT_EMBED(SSL_SESSION_ASN1, time, ZINT64, 1),
9612e157 RL	80	ASN1_EXP_OPT_EMBED(SSL_SESSION_ASN1, timeout, ZINT64, 2),
cc5b6a03 DSH	81	ASN1_EXP_OPT(SSL_SESSION_ASN1, peer, X509, 3),
cc5b6a03 DSH	82	ASN1_EXP_OPT(SSL_SESSION_ASN1, session_id_context, ASN1_OCTET_STRING, 4),
9612e157	83	ASN1_EXP_OPT_EMBED(SSL_SESSION_ASN1, verify_result, ZINT32, 5),
cc5b6a03	84	ASN1_EXP_OPT(SSL_SESSION_ASN1, tlsext_hostname, ASN1_OCTET_STRING, 6),
cc5b6a03 DSH	85	#ifndef OPENSSL_NO_PSK
	86	ASN1_EXP_OPT(SSL_SESSION_ASN1, psk_identity_hint, ASN1_OCTET_STRING, 7),
	87	ASN1_EXP_OPT(SSL_SESSION_ASN1, psk_identity, ASN1_OCTET_STRING, 8),
	88	#endif
9612e157	89	ASN1_EXP_OPT_EMBED(SSL_SESSION_ASN1, tlsext_tick_lifetime_hint, ZUINT64, 9),
cc5b6a03	90	ASN1_EXP_OPT(SSL_SESSION_ASN1, tlsext_tick, ASN1_OCTET_STRING, 10),
cc5b6a03 DSH	91	ASN1_EXP_OPT(SSL_SESSION_ASN1, comp_id, ASN1_OCTET_STRING, 11),
	92	#ifndef OPENSSL_NO_SRP
	93	ASN1_EXP_OPT(SSL_SESSION_ASN1, srp_username, ASN1_OCTET_STRING, 12),
	94	#endif
9612e157 RL	95	ASN1_EXP_OPT_EMBED(SSL_SESSION_ASN1, flags, ZUINT64, 13),
	96	ASN1_EXP_OPT_EMBED(SSL_SESSION_ASN1, tlsext_tick_age_add, ZUINT32, 14),
	97	ASN1_EXP_OPT_EMBED(SSL_SESSION_ASN1, max_early_data, ZUINT32, 15),
f6370040	98	ASN1_EXP_OPT(SSL_SESSION_ASN1, alpn_selected, ASN1_OCTET_STRING, 16)
df2ee0e2	99	} static_ASN1_SEQUENCE_END(SSL_SESSION_ASN1)
cc5b6a03 DSH	100
	101	IMPLEMENT_STATIC_ASN1_ENCODE_FUNCTIONS(SSL_SESSION_ASN1)
	102
	103	/* Utility functions for i2d_SSL_SESSION */
	104
	105	/* Initialise OCTET STRING from buffer and length */
	106
	107	static void ssl_session_oinit(ASN1_OCTET_STRING *dest, ASN1_OCTET_STRING os,
	108	unsigned char *data, size_t len)
	109	{
	110	os->data = data;
348240c6	111	os->length = (int)len;
cc5b6a03 DSH	112	os->flags = 0;
	113	*dest = os;
	114	}
	115
	116	/* Initialise OCTET STRING from string */
	117	static void ssl_session_sinit(ASN1_OCTET_STRING *dest, ASN1_OCTET_STRING os,
	118	char *data)
	119	{
	120	if (data != NULL)
	121	ssl_session_oinit(dest, os, (unsigned char *)data, strlen(data));
	122	else
	123	*dest = NULL;
	124	}
	125
6b691a5c	126	int i2d_SSL_SESSION(SSL_SESSION in, unsigned char *pp)
0f113f3e	127	{
cc5b6a03 DSH	128
	129	SSL_SESSION_ASN1 as;
	130
	131	ASN1_OCTET_STRING cipher;
	132	unsigned char cipher_data[2];
	133	ASN1_OCTET_STRING master_key, session_id, sid_ctx;
	134
	135	#ifndef OPENSSL_NO_COMP
	136	ASN1_OCTET_STRING comp_id;
	137	unsigned char comp_id_data;
	138	#endif
cc5b6a03	139	ASN1_OCTET_STRING tlsext_hostname, tlsext_tick;
edc032b5	140	#ifndef OPENSSL_NO_SRP
cc5b6a03 DSH	141	ASN1_OCTET_STRING srp_username;
cc5b6a03 DSH	142	#endif
cc5b6a03 DSH	143	#ifndef OPENSSL_NO_PSK
cc5b6a03 DSH	144	ASN1_OCTET_STRING psk_identity, psk_identity_hint;
367eb1f1	145	#endif
f6370040	146	ASN1_OCTET_STRING alpn_selected;
cc5b6a03	147
0f113f3e	148	long l;
0f113f3e MC	149
0f113f3e MC	150	if ((in == NULL) \|\| ((in->cipher == NULL) && (in->cipher_id == 0)))
cc5b6a03 DSH	151	return 0;
	152
	153	memset(&as, 0, sizeof(as));
	154
	155	as.version = SSL_SESSION_ASN1_VERSION;
	156	as.ssl_version = in->ssl_version;
0f113f3e MC	157
	158	if (in->cipher == NULL)
	159	l = in->cipher_id;
	160	else
	161	l = in->cipher->id;
cc5b6a03 DSH	162	cipher_data[0] = ((unsigned char)(l >> 8L)) & 0xff;
	163	cipher_data[1] = ((unsigned char)(l)) & 0xff;
	164
	165	ssl_session_oinit(&as.cipher, &cipher, cipher_data, 2);
d02b48c6	166
9de014a7	167	#ifndef OPENSSL_NO_COMP
0f113f3e	168	if (in->compress_meth) {
cc5b6a03 DSH	169	comp_id_data = (unsigned char)in->compress_meth;
cc5b6a03 DSH	170	ssl_session_oinit(&as.comp_id, &comp_id, &comp_id_data, 1);
0f113f3e	171	}
9de014a7 DSH	172	#endif
9de014a7 DSH	173
cc5b6a03 DSH	174	ssl_session_oinit(&as.master_key, &master_key,
cc5b6a03 DSH	175	in->master_key, in->master_key_length);
d02b48c6	176
cc5b6a03 DSH	177	ssl_session_oinit(&as.session_id, &session_id,
cc5b6a03 DSH	178	in->session_id, in->session_id_length);
b4cadc6e	179
cc5b6a03 DSH	180	ssl_session_oinit(&as.session_id_context, &sid_ctx,
cc5b6a03 DSH	181	in->sid_ctx, in->sid_ctx_length);
0f113f3e	182
cc5b6a03 DSH	183	as.time = in->time;
	184	as.timeout = in->timeout;
	185	as.verify_result = in->verify_result;
0f113f3e	186
cc5b6a03	187	as.peer = in->peer;
0f113f3e	188
cc5b6a03	189	ssl_session_sinit(&as.tlsext_hostname, &tlsext_hostname,
aff8c126 RS	190	in->ext.hostname);
aff8c126 RS	191	if (in->ext.tick) {
cc5b6a03	192	ssl_session_oinit(&as.tlsext_tick, &tlsext_tick,
aff8c126	193	in->ext.tick, in->ext.ticklen);
0f113f3e	194	}
aff8c126 RS	195	if (in->ext.tick_lifetime_hint > 0)
aff8c126 RS	196	as.tlsext_tick_lifetime_hint = in->ext.tick_lifetime_hint;
fc24f0bf	197	as.tlsext_tick_age_add = in->ext.tick_age_add;
ddac1974	198	#ifndef OPENSSL_NO_PSK
cc5b6a03 DSH	199	ssl_session_sinit(&as.psk_identity_hint, &psk_identity_hint,
	200	in->psk_identity_hint);
	201	ssl_session_sinit(&as.psk_identity, &psk_identity, in->psk_identity);
0f113f3e	202	#endif /* OPENSSL_NO_PSK */
edc032b5	203	#ifndef OPENSSL_NO_SRP
cc5b6a03	204	ssl_session_sinit(&as.srp_username, &srp_username, in->srp_username);
0f113f3e MC	205	#endif /* OPENSSL_NO_SRP */
0f113f3e MC	206
cc5b6a03	207	as.flags = in->flags;
5d5b3fba	208	as.max_early_data = in->ext.max_early_data;
6f152a15	209
f6370040 MC	210	if (in->ext.alpn_selected == NULL)
	211	as.alpn_selected = NULL;
	212	else
	213	ssl_session_oinit(&as.alpn_selected, &alpn_selected,
	214	in->ext.alpn_selected, in->ext.alpn_selected_len);
	215
cc5b6a03	216	return i2d_SSL_SESSION_ASN1(&as, pp);
d02b48c6	217
cc5b6a03	218	}
0f113f3e	219
cc5b6a03	220	/* Utility functions for d2i_SSL_SESSION */
0f113f3e	221
7644a9ae	222	/* OPENSSL_strndup an OCTET STRING */
cc5b6a03 DSH	223
	224	static int ssl_session_strndup(char *pdst, ASN1_OCTET_STRING src)
	225	{
b548a1f1 RS	226	OPENSSL_free(*pdst);
b548a1f1 RS	227	*pdst = NULL;
cc5b6a03 DSH	228	if (src == NULL)
cc5b6a03 DSH	229	return 1;
7644a9ae	230	pdst = OPENSSL_strndup((char )src->data, src->length);
cc5b6a03 DSH	231	if (*pdst == NULL)
	232	return 0;
	233	return 1;
	234	}
	235
	236	/* Copy an OCTET STRING, return error if it exceeds maximum length */
	237
ec60ccc1 MC	238	static int ssl_session_memcpy(unsigned char dst, size_t pdstlen,
ec60ccc1 MC	239	ASN1_OCTET_STRING *src, size_t maxlen)
cc5b6a03 DSH	240	{
	241	if (src == NULL) {
	242	*pdstlen = 0;
	243	return 1;
	244	}
ec60ccc1	245	if (src->length < 0 \|\| src->length > (int)maxlen)
cc5b6a03 DSH	246	return 0;
	247	memcpy(dst, src->data, src->length);
	248	*pdstlen = src->length;
	249	return 1;
0f113f3e	250	}
d02b48c6	251
41a15c4f	252	SSL_SESSION d2i_SSL_SESSION(SSL_SESSION a, const unsigned char *pp,
0f113f3e MC	253	long length)
0f113f3e MC	254	{
0f113f3e	255	long id;
ec60ccc1	256	size_t tmpl;
cc5b6a03 DSH	257	const unsigned char p = pp;
	258	SSL_SESSION_ASN1 *as = NULL;
	259	SSL_SESSION *ret = NULL;
	260
	261	as = d2i_SSL_SESSION_ASN1(NULL, &p, length);
	262	/* ASN.1 code returns suitable error */
	263	if (as == NULL)
	264	goto err;
0f113f3e	265
cc5b6a03 DSH	266	if (!a \|\| !*a) {
	267	ret = SSL_SESSION_new();
	268	if (ret == NULL)
0f113f3e	269	goto err;
0f113f3e	270	} else {
cc5b6a03 DSH	271	ret = *a;
	272	}
	273
	274	if (as->version != SSL_SESSION_ASN1_VERSION) {
	275	SSLerr(SSL_F_D2I_SSL_SESSION, SSL_R_UNKNOWN_SSL_VERSION);
0f113f3e MC	276	goto err;
	277	}
	278
cc5b6a03 DSH	279	if ((as->ssl_version >> 8) != SSL3_VERSION_MAJOR
	280	&& (as->ssl_version >> 8) != DTLS1_VERSION_MAJOR
	281	&& as->ssl_version != DTLS1_BAD_VER) {
	282	SSLerr(SSL_F_D2I_SSL_SESSION, SSL_R_UNSUPPORTED_SSL_VERSION);
	283	goto err;
	284	}
0f113f3e	285
cc5b6a03	286	ret->ssl_version = (int)as->ssl_version;
0f113f3e	287
cc5b6a03 DSH	288	if (as->cipher->length != 2) {
	289	SSLerr(SSL_F_D2I_SSL_SESSION, SSL_R_CIPHER_CODE_WRONG_LENGTH);
	290	goto err;
	291	}
0f113f3e	292
a0179d0a BE	293	id = 0x03000000L \| ((unsigned long)as->cipher->data[0] << 8L)
a0179d0a BE	294	\| (unsigned long)as->cipher->data[1];
0f113f3e	295
cc5b6a03	296	ret->cipher_id = id;
534a43ff MC	297	ret->cipher = ssl3_get_cipher_by_id(id);
	298	if (ret->cipher == NULL)
	299	goto err;
0f113f3e	300
cc5b6a03 DSH	301	if (!ssl_session_memcpy(ret->session_id, &ret->session_id_length,
	302	as->session_id, SSL3_MAX_SSL_SESSION_ID_LENGTH))
	303	goto err;
	304
	305	if (!ssl_session_memcpy(ret->master_key, &tmpl,
1a3392c8	306	as->master_key, TLS13_MAX_RESUMPTION_MASTER_LENGTH))
cc5b6a03 DSH	307	goto err;
	308
	309	ret->master_key_length = tmpl;
98fa4fe8	310
cc5b6a03 DSH	311	if (as->time != 0)
	312	ret->time = as->time;
	313	else
0f113f3e MC	314	ret->time = (unsigned long)time(NULL);
0f113f3e MC	315
cc5b6a03 DSH	316	if (as->timeout != 0)
	317	ret->timeout = as->timeout;
	318	else
0f113f3e MC	319	ret->timeout = 3;
0f113f3e MC	320
cc5b6a03 DSH	321	X509_free(ret->peer);
	322	ret->peer = as->peer;
	323	as->peer = NULL;
0f113f3e	324
cc5b6a03 DSH	325	if (!ssl_session_memcpy(ret->sid_ctx, &ret->sid_ctx_length,
	326	as->session_id_context, SSL_MAX_SID_CTX_LENGTH))
	327	goto err;
0f113f3e	328
cc5b6a03 DSH	329	/* NB: this defaults to zero which is X509_V_OK */
cc5b6a03 DSH	330	ret->verify_result = as->verify_result;
b1fe6ca1	331
aff8c126	332	if (!ssl_session_strndup(&ret->ext.hostname, as->tlsext_hostname))
cc5b6a03	333	goto err;
ed3883d2	334
ddac1974	335	#ifndef OPENSSL_NO_PSK
cc5b6a03 DSH	336	if (!ssl_session_strndup(&ret->psk_identity_hint, as->psk_identity_hint))
	337	goto err;
	338	if (!ssl_session_strndup(&ret->psk_identity, as->psk_identity))
	339	goto err;
	340	#endif
ddac1974	341
aff8c126	342	ret->ext.tick_lifetime_hint = as->tlsext_tick_lifetime_hint;
fc24f0bf	343	ret->ext.tick_age_add = as->tlsext_tick_age_add;
cc5b6a03	344	if (as->tlsext_tick) {
aff8c126 RS	345	ret->ext.tick = as->tlsext_tick->data;
aff8c126 RS	346	ret->ext.ticklen = as->tlsext_tick->length;
cc5b6a03 DSH	347	as->tlsext_tick->data = NULL;
cc5b6a03 DSH	348	} else {
aff8c126	349	ret->ext.tick = NULL;
cc5b6a03	350	}
9de014a7	351	#ifndef OPENSSL_NO_COMP
cc5b6a03 DSH	352	if (as->comp_id) {
	353	if (as->comp_id->length != 1) {
	354	SSLerr(SSL_F_D2I_SSL_SESSION, SSL_R_BAD_LENGTH);
	355	goto err;
	356	}
	357	ret->compress_meth = as->comp_id->data[0];
	358	} else {
	359	ret->compress_meth = 0;
0f113f3e	360	}
9de014a7	361	#endif
ddac1974	362
edc032b5	363	#ifndef OPENSSL_NO_SRP
cc5b6a03 DSH	364	if (!ssl_session_strndup(&ret->srp_username, as->srp_username))
cc5b6a03 DSH	365	goto err;
0f113f3e	366	#endif /* OPENSSL_NO_SRP */
cc5b6a03 DSH	367	/* Flags defaults to zero which is fine */
cc5b6a03 DSH	368	ret->flags = as->flags;
5d5b3fba	369	ret->ext.max_early_data = as->max_early_data;
cc5b6a03	370
f6370040 MC	371	if (as->alpn_selected != NULL) {
	372	if (!ssl_session_strndup((char **)&ret->ext.alpn_selected,
	373	as->alpn_selected))
	374	goto err;
	375	ret->ext.alpn_selected_len = as->alpn_selected->length;
	376	} else {
	377	ret->ext.alpn_selected = NULL;
	378	ret->ext.alpn_selected_len = 0;
	379	}
	380
cc5b6a03 DSH	381	M_ASN1_free_of(as, SSL_SESSION_ASN1);
	382
	383	if ((a != NULL) && (*a == NULL))
	384	*a = ret;
	385	*pp = p;
	386	return ret;
	387
a230b26e	388	err:
cc5b6a03 DSH	389	M_ASN1_free_of(as, SSL_SESSION_ASN1);
	390	if ((a == NULL) \|\| (*a != ret))
	391	SSL_SESSION_free(ret);
	392	return NULL;
0f113f3e	393	}