/src/openssl/ssl/ssl_asn1.c

Source
/*
 * Copyright 1995-2023 The OpenSSL Project Authors. All Rights Reserved.
 * Copyright 2005 Nokia. 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 <stdlib.h>
#include "ssl_local.h"
#include <openssl/asn1t.h>
#include <openssl/encoder.h>
#include <openssl/x509.h>

#include <crypto/asn1.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;
    uint32_t tlsext_max_fragment_len_mode;
    ASN1_OCTET_STRING *ticket_appdata;
    uint32_t kex_group;
    ASN1_OCTET_STRING *peer_rpk;
} 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),
    ASN1_EXP_OPT_EMBED(SSL_SESSION_ASN1, tlsext_max_fragment_len_mode, ZUINT32, 17),
    ASN1_EXP_OPT(SSL_SESSION_ASN1, ticket_appdata, ASN1_OCTET_STRING, 18),
    ASN1_EXP_OPT_EMBED(SSL_SESSION_ASN1, kex_group, UINT32, 19),
    ASN1_EXP_OPT(SSL_SESSION_ASN1, peer_rpk, ASN1_OCTET_STRING, 20)
} 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,
    const unsigned char *data, size_t len)
{
    os->data = (unsigned char *)data; /* justified cast: data is not modified */
    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,
    const char *data)
{
    if (data != NULL)
        ssl_session_oinit(dest, os, (const unsigned char *)data, strlen(data));
    else
        *dest = NULL;
}

int i2d_SSL_SESSION(const 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;
    ASN1_OCTET_STRING ticket_appdata;
    ASN1_OCTET_STRING peer_rpk;

    long l;
    int ret;

    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;

    as.kex_group = in->kex_group;

    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 = (int64_t)ossl_time_to_time_t(in->time);
    as.timeout = (int64_t)ossl_time2seconds(in->timeout);
    as.verify_result = in->verify_result;

    as.peer = in->peer;

    as.peer_rpk = NULL;
    peer_rpk.data = NULL;
    if (in->peer_rpk != NULL) {
        peer_rpk.length = i2d_PUBKEY(in->peer_rpk, &peer_rpk.data);
        if (peer_rpk.length > 0 && peer_rpk.data != NULL)
            as.peer_rpk = &peer_rpk;
    }

    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);

    as.tlsext_max_fragment_len_mode = in->ext.max_fragment_len_mode;

    if (in->ticket_appdata == NULL)
        as.ticket_appdata = NULL;
    else
        ssl_session_oinit(&as.ticket_appdata, &ticket_appdata,
            in->ticket_appdata, in->ticket_appdata_len);

    ret = i2d_SSL_SESSION_ASN1(&as, pp);
    OPENSSL_free(peer_rpk.data);
    return ret;
}

/* 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 || src->length == 0) {
        *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)
{
    return d2i_SSL_SESSION_ex(a, pp, length, NULL, NULL);
}
SSL_SESSION *d2i_SSL_SESSION_ex(SSL_SESSION **a, const unsigned char **pp,
    long length, OSSL_LIB_CTX *libctx,
    const char *propq)
{
    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 == NULL || *a == NULL) {
        ret = SSL_SESSION_new();
        if (ret == NULL)
            goto err;
    } else {
        ret = *a;
    }

    if (as->version != SSL_SESSION_ASN1_VERSION) {
        ERR_raise(ERR_LIB_SSL, 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) {
        ERR_raise(ERR_LIB_SSL, SSL_R_UNSUPPORTED_SSL_VERSION);
        goto err;
    }

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

    ret->kex_group = as->kex_group;

    if (as->cipher->length != 2) {
        ERR_raise(ERR_LIB_SSL, 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_PSK_LENGTH))
        goto err;

    ret->master_key_length = tmpl;

    if (as->time != 0)
        ret->time = ossl_time_from_time_t(as->time);
    else
        ret->time = ossl_time_now();

    if (as->timeout != 0)
        ret->timeout = ossl_seconds2time(as->timeout);
    else
        ret->timeout = ossl_seconds2time(3);
    ssl_session_calculate_timeout(ret);

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

    EVP_PKEY_free(ret->peer_rpk);
    ret->peer_rpk = NULL;
    if (as->peer_rpk != NULL) {
        const unsigned char *data = as->peer_rpk->data;

        /*
         * |data| is incremented; we don't want to lose original ptr
         */
        ret->peer_rpk = d2i_PUBKEY_ex(NULL, &data, as->peer_rpk->length, libctx, propq);
        if (ret->peer_rpk == NULL)
            goto err;
    }

    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 = (unsigned long)as->tlsext_tick_lifetime_hint;
    ret->ext.tick_age_add = as->tlsext_tick_age_add;
    OPENSSL_free(ret->ext.tick);
    if (as->tlsext_tick != NULL) {
        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) {
            ERR_raise(ERR_LIB_SSL, 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 = (int32_t)as->flags;
    ret->ext.max_early_data = as->max_early_data;

    OPENSSL_free(ret->ext.alpn_selected);
    if (as->alpn_selected != NULL) {
        ret->ext.alpn_selected = as->alpn_selected->data;
        ret->ext.alpn_selected_len = as->alpn_selected->length;
        as->alpn_selected->data = NULL;
    } else {
        ret->ext.alpn_selected = NULL;
        ret->ext.alpn_selected_len = 0;
    }

    ret->ext.max_fragment_len_mode = as->tlsext_max_fragment_len_mode;

    OPENSSL_free(ret->ticket_appdata);
    if (as->ticket_appdata != NULL) {
        ret->ticket_appdata = as->ticket_appdata->data;
        ret->ticket_appdata_len = as->ticket_appdata->length;
        as->ticket_appdata->data = NULL;
    } else {
        ret->ticket_appdata = NULL;
        ret->ticket_appdata_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;
}

Coverage Report

Created: 2026-03-09 06:55

Line	Count	Source
1		/*
2		* Copyright 1995-2023 The OpenSSL Project Authors. All Rights Reserved.
3		* Copyright 2005 Nokia. All rights reserved.
4		*
5		* Licensed under the Apache License 2.0 (the "License"). You may not use
6		* this file except in compliance with the License. You can obtain a copy
7		* in the file LICENSE in the source distribution or at
8		* https://www.openssl.org/source/license.html
9		*/
10
11		#include <stdio.h>
12		#include <stdlib.h>
13		#include "ssl_local.h"
14		#include <openssl/asn1t.h>
15		#include <openssl/encoder.h>
16		#include <openssl/x509.h>
17
18		#include <crypto/asn1.h>
19
20		typedef struct {
21		uint32_t version;
22		int32_t ssl_version;
23		ASN1_OCTET_STRING *cipher;
24		ASN1_OCTET_STRING *comp_id;
25		ASN1_OCTET_STRING *master_key;
26		ASN1_OCTET_STRING *session_id;
27		ASN1_OCTET_STRING *key_arg;
28		int64_t time;
29		int64_t timeout;
30		X509 *peer;
31		ASN1_OCTET_STRING *session_id_context;
32		int32_t verify_result;
33		ASN1_OCTET_STRING *tlsext_hostname;
34		uint64_t tlsext_tick_lifetime_hint;
35		uint32_t tlsext_tick_age_add;
36		ASN1_OCTET_STRING *tlsext_tick;
37		#ifndef OPENSSL_NO_PSK
38		ASN1_OCTET_STRING *psk_identity_hint;
39		ASN1_OCTET_STRING *psk_identity;
40		#endif
41		#ifndef OPENSSL_NO_SRP
42		ASN1_OCTET_STRING *srp_username;
43		#endif
44		uint64_t flags;
45		uint32_t max_early_data;
46		ASN1_OCTET_STRING *alpn_selected;
47		uint32_t tlsext_max_fragment_len_mode;
48		ASN1_OCTET_STRING *ticket_appdata;
49		uint32_t kex_group;
50		ASN1_OCTET_STRING *peer_rpk;
51		} SSL_SESSION_ASN1;
52
53		ASN1_SEQUENCE(SSL_SESSION_ASN1) = {
54		ASN1_EMBED(SSL_SESSION_ASN1, version, UINT32),
55		ASN1_EMBED(SSL_SESSION_ASN1, ssl_version, INT32),
56		ASN1_SIMPLE(SSL_SESSION_ASN1, cipher, ASN1_OCTET_STRING),
57		ASN1_SIMPLE(SSL_SESSION_ASN1, session_id, ASN1_OCTET_STRING),
58		ASN1_SIMPLE(SSL_SESSION_ASN1, master_key, ASN1_OCTET_STRING),
59		ASN1_IMP_OPT(SSL_SESSION_ASN1, key_arg, ASN1_OCTET_STRING, 0),
60		ASN1_EXP_OPT_EMBED(SSL_SESSION_ASN1, time, ZINT64, 1),
61		ASN1_EXP_OPT_EMBED(SSL_SESSION_ASN1, timeout, ZINT64, 2),
62		ASN1_EXP_OPT(SSL_SESSION_ASN1, peer, X509, 3),
63		ASN1_EXP_OPT(SSL_SESSION_ASN1, session_id_context, ASN1_OCTET_STRING, 4),
64		ASN1_EXP_OPT_EMBED(SSL_SESSION_ASN1, verify_result, ZINT32, 5),
65		ASN1_EXP_OPT(SSL_SESSION_ASN1, tlsext_hostname, ASN1_OCTET_STRING, 6),
66		#ifndef OPENSSL_NO_PSK
67		ASN1_EXP_OPT(SSL_SESSION_ASN1, psk_identity_hint, ASN1_OCTET_STRING, 7),
68		ASN1_EXP_OPT(SSL_SESSION_ASN1, psk_identity, ASN1_OCTET_STRING, 8),
69		#endif
70		ASN1_EXP_OPT_EMBED(SSL_SESSION_ASN1, tlsext_tick_lifetime_hint, ZUINT64, 9),
71		ASN1_EXP_OPT(SSL_SESSION_ASN1, tlsext_tick, ASN1_OCTET_STRING, 10),
72		ASN1_EXP_OPT(SSL_SESSION_ASN1, comp_id, ASN1_OCTET_STRING, 11),
73		#ifndef OPENSSL_NO_SRP
74		ASN1_EXP_OPT(SSL_SESSION_ASN1, srp_username, ASN1_OCTET_STRING, 12),
75		#endif
76		ASN1_EXP_OPT_EMBED(SSL_SESSION_ASN1, flags, ZUINT64, 13),
77		ASN1_EXP_OPT_EMBED(SSL_SESSION_ASN1, tlsext_tick_age_add, ZUINT32, 14),
78		ASN1_EXP_OPT_EMBED(SSL_SESSION_ASN1, max_early_data, ZUINT32, 15),
79		ASN1_EXP_OPT(SSL_SESSION_ASN1, alpn_selected, ASN1_OCTET_STRING, 16),
80		ASN1_EXP_OPT_EMBED(SSL_SESSION_ASN1, tlsext_max_fragment_len_mode, ZUINT32, 17),
81		ASN1_EXP_OPT(SSL_SESSION_ASN1, ticket_appdata, ASN1_OCTET_STRING, 18),
82		ASN1_EXP_OPT_EMBED(SSL_SESSION_ASN1, kex_group, UINT32, 19),
83		ASN1_EXP_OPT(SSL_SESSION_ASN1, peer_rpk, ASN1_OCTET_STRING, 20)
84	0	} static_ASN1_SEQUENCE_END(SSL_SESSION_ASN1)
85	0
86	0	IMPLEMENT_STATIC_ASN1_ENCODE_FUNCTIONS(SSL_SESSION_ASN1)
87	0
88	0	/* Utility functions for i2d_SSL_SESSION */
89	0
90	0	/* Initialise OCTET STRING from buffer and length */
91	0
92	0	static void ssl_session_oinit(ASN1_OCTET_STRING *dest, ASN1_OCTET_STRING os,
93	0	const unsigned char *data, size_t len)
94	0	{
95	0	os->data = (unsigned char )data; / justified cast: data is not modified */
96	0	os->length = (int)len;
97	0	os->flags = 0;
98	0	*dest = os;
99	0	}
100
101		/* Initialise OCTET STRING from string */
102		static void ssl_session_sinit(ASN1_OCTET_STRING *dest, ASN1_OCTET_STRING os,
103		const char *data)
104	0	{
105	0	if (data != NULL)
106	0	ssl_session_oinit(dest, os, (const unsigned char *)data, strlen(data));
107	0	else
108	0	*dest = NULL;
109	0	}
110
111		int i2d_SSL_SESSION(const SSL_SESSION in, unsigned char *pp)
112	0	{
113
114	0	SSL_SESSION_ASN1 as;
115
116	0	ASN1_OCTET_STRING cipher;
117	0	unsigned char cipher_data[2];
118	0	ASN1_OCTET_STRING master_key, session_id, sid_ctx;
119
120	0	#ifndef OPENSSL_NO_COMP
121	0	ASN1_OCTET_STRING comp_id;
122	0	unsigned char comp_id_data;
123	0	#endif
124	0	ASN1_OCTET_STRING tlsext_hostname, tlsext_tick;
125	0	#ifndef OPENSSL_NO_SRP
126	0	ASN1_OCTET_STRING srp_username;
127	0	#endif
128	0	#ifndef OPENSSL_NO_PSK
129	0	ASN1_OCTET_STRING psk_identity, psk_identity_hint;
130	0	#endif
131	0	ASN1_OCTET_STRING alpn_selected;
132	0	ASN1_OCTET_STRING ticket_appdata;
133	0	ASN1_OCTET_STRING peer_rpk;
134
135	0	long l;
136	0	int ret;
137
138	0	if ((in == NULL) \|\| ((in->cipher == NULL) && (in->cipher_id == 0)))
139	0	return 0;
140
141	0	memset(&as, 0, sizeof(as));
142
143	0	as.version = SSL_SESSION_ASN1_VERSION;
144	0	as.ssl_version = in->ssl_version;
145
146	0	as.kex_group = in->kex_group;
147
148	0	if (in->cipher == NULL)
149	0	l = in->cipher_id;
150	0	else
151	0	l = in->cipher->id;
152	0	cipher_data[0] = ((unsigned char)(l >> 8L)) & 0xff;
153	0	cipher_data[1] = ((unsigned char)(l)) & 0xff;
154
155	0	ssl_session_oinit(&as.cipher, &cipher, cipher_data, 2);
156
157	0	#ifndef OPENSSL_NO_COMP
158	0	if (in->compress_meth) {
159	0	comp_id_data = (unsigned char)in->compress_meth;
160	0	ssl_session_oinit(&as.comp_id, &comp_id, &comp_id_data, 1);
161	0	}
162	0	#endif
163
164	0	ssl_session_oinit(&as.master_key, &master_key,
165	0	in->master_key, in->master_key_length);
166
167	0	ssl_session_oinit(&as.session_id, &session_id,
168	0	in->session_id, in->session_id_length);
169
170	0	ssl_session_oinit(&as.session_id_context, &sid_ctx,
171	0	in->sid_ctx, in->sid_ctx_length);
172
173	0	as.time = (int64_t)ossl_time_to_time_t(in->time);
174	0	as.timeout = (int64_t)ossl_time2seconds(in->timeout);
175	0	as.verify_result = in->verify_result;
176
177	0	as.peer = in->peer;
178
179	0	as.peer_rpk = NULL;
180	0	peer_rpk.data = NULL;
181	0	if (in->peer_rpk != NULL) {
182	0	peer_rpk.length = i2d_PUBKEY(in->peer_rpk, &peer_rpk.data);
183	0	if (peer_rpk.length > 0 && peer_rpk.data != NULL)
184	0	as.peer_rpk = &peer_rpk;
185	0	}
186
187	0	ssl_session_sinit(&as.tlsext_hostname, &tlsext_hostname,
188	0	in->ext.hostname);
189	0	if (in->ext.tick) {
190	0	ssl_session_oinit(&as.tlsext_tick, &tlsext_tick,
191	0	in->ext.tick, in->ext.ticklen);
192	0	}
193	0	if (in->ext.tick_lifetime_hint > 0)
194	0	as.tlsext_tick_lifetime_hint = in->ext.tick_lifetime_hint;
195	0	as.tlsext_tick_age_add = in->ext.tick_age_add;
196	0	#ifndef OPENSSL_NO_PSK
197	0	ssl_session_sinit(&as.psk_identity_hint, &psk_identity_hint,
198	0	in->psk_identity_hint);
199	0	ssl_session_sinit(&as.psk_identity, &psk_identity, in->psk_identity);
200	0	#endif /* OPENSSL_NO_PSK */
201	0	#ifndef OPENSSL_NO_SRP
202	0	ssl_session_sinit(&as.srp_username, &srp_username, in->srp_username);
203	0	#endif /* OPENSSL_NO_SRP */
204
205	0	as.flags = in->flags;
206	0	as.max_early_data = in->ext.max_early_data;
207
208	0	if (in->ext.alpn_selected == NULL)
209	0	as.alpn_selected = NULL;
210	0	else
211	0	ssl_session_oinit(&as.alpn_selected, &alpn_selected,
212	0	in->ext.alpn_selected, in->ext.alpn_selected_len);
213
214	0	as.tlsext_max_fragment_len_mode = in->ext.max_fragment_len_mode;
215
216	0	if (in->ticket_appdata == NULL)
217	0	as.ticket_appdata = NULL;
218	0	else
219	0	ssl_session_oinit(&as.ticket_appdata, &ticket_appdata,
220	0	in->ticket_appdata, in->ticket_appdata_len);
221
222	0	ret = i2d_SSL_SESSION_ASN1(&as, pp);
223	0	OPENSSL_free(peer_rpk.data);
224	0	return ret;
225	0	}
226
227		/* Utility functions for d2i_SSL_SESSION */
228
229		/* OPENSSL_strndup an OCTET STRING */
230
231		static int ssl_session_strndup(char *pdst, ASN1_OCTET_STRING src)
232	0	{
233	0	OPENSSL_free(*pdst);
234	0	*pdst = NULL;
235	0	if (src == NULL)
236	0	return 1;
237	0	pdst = OPENSSL_strndup((char )src->data, src->length);
238	0	if (*pdst == NULL)
239	0	return 0;
240	0	return 1;
241	0	}
242
243		/* Copy an OCTET STRING, return error if it exceeds maximum length */
244
245		static int ssl_session_memcpy(unsigned char dst, size_t pdstlen,
246		ASN1_OCTET_STRING *src, size_t maxlen)
247	0	{
248	0	if (src == NULL \|\| src->length == 0) {
249	0	*pdstlen = 0;
250	0	return 1;
251	0	}
252	0	if (src->length < 0 \|\| src->length > (int)maxlen)
253	0	return 0;
254	0	memcpy(dst, src->data, src->length);
255	0	*pdstlen = src->length;
256	0	return 1;
257	0	}
258
259		SSL_SESSION d2i_SSL_SESSION(SSL_SESSION a, const unsigned char *pp,
260		long length)
261	0	{
262	0	return d2i_SSL_SESSION_ex(a, pp, length, NULL, NULL);
263	0	}
264		SSL_SESSION d2i_SSL_SESSION_ex(SSL_SESSION a, const unsigned char *pp,
265		long length, OSSL_LIB_CTX *libctx,
266		const char *propq)
267	0	{
268	0	long id;
269	0	size_t tmpl;
270	0	const unsigned char p = pp;
271	0	SSL_SESSION_ASN1 *as = NULL;
272	0	SSL_SESSION *ret = NULL;
273
274	0	as = d2i_SSL_SESSION_ASN1(NULL, &p, length);
275		/* ASN.1 code returns suitable error */
276	0	if (as == NULL)
277	0	goto err;
278
279	0	if (a == NULL \|\| *a == NULL) {
280	0	ret = SSL_SESSION_new();
281	0	if (ret == NULL)
282	0	goto err;
283	0	} else {
284	0	ret = *a;
285	0	}
286
287	0	if (as->version != SSL_SESSION_ASN1_VERSION) {
288	0	ERR_raise(ERR_LIB_SSL, SSL_R_UNKNOWN_SSL_VERSION);
289	0	goto err;
290	0	}
291
292	0	if ((as->ssl_version >> 8) != SSL3_VERSION_MAJOR
293	0	&& (as->ssl_version >> 8) != DTLS1_VERSION_MAJOR
294	0	&& as->ssl_version != DTLS1_BAD_VER) {
295	0	ERR_raise(ERR_LIB_SSL, SSL_R_UNSUPPORTED_SSL_VERSION);
296	0	goto err;
297	0	}
298
299	0	ret->ssl_version = (int)as->ssl_version;
300
301	0	ret->kex_group = as->kex_group;
302
303	0	if (as->cipher->length != 2) {
304	0	ERR_raise(ERR_LIB_SSL, SSL_R_CIPHER_CODE_WRONG_LENGTH);
305	0	goto err;
306	0	}
307
308	0	id = 0x03000000L \| ((unsigned long)as->cipher->data[0] << 8L)
309	0	\| (unsigned long)as->cipher->data[1];
310
311	0	ret->cipher_id = id;
312	0	ret->cipher = ssl3_get_cipher_by_id(id);
313	0	if (ret->cipher == NULL)
314	0	goto err;
315
316	0	if (!ssl_session_memcpy(ret->session_id, &ret->session_id_length,
317	0	as->session_id, SSL3_MAX_SSL_SESSION_ID_LENGTH))
318	0	goto err;
319
320	0	if (!ssl_session_memcpy(ret->master_key, &tmpl,
321	0	as->master_key, TLS13_MAX_RESUMPTION_PSK_LENGTH))
322	0	goto err;
323
324	0	ret->master_key_length = tmpl;
325
326	0	if (as->time != 0)
327	0	ret->time = ossl_time_from_time_t(as->time);
328	0	else
329	0	ret->time = ossl_time_now();
330
331	0	if (as->timeout != 0)
332	0	ret->timeout = ossl_seconds2time(as->timeout);
333	0	else
334	0	ret->timeout = ossl_seconds2time(3);
335	0	ssl_session_calculate_timeout(ret);
336
337	0	X509_free(ret->peer);
338	0	ret->peer = as->peer;
339	0	as->peer = NULL;
340
341	0	EVP_PKEY_free(ret->peer_rpk);
342	0	ret->peer_rpk = NULL;
343	0	if (as->peer_rpk != NULL) {
344	0	const unsigned char *data = as->peer_rpk->data;
345
346		/*
347		* \|data\| is incremented; we don't want to lose original ptr
348		*/
349	0	ret->peer_rpk = d2i_PUBKEY_ex(NULL, &data, as->peer_rpk->length, libctx, propq);
350	0	if (ret->peer_rpk == NULL)
351	0	goto err;
352	0	}
353
354	0	if (!ssl_session_memcpy(ret->sid_ctx, &ret->sid_ctx_length,
355	0	as->session_id_context, SSL_MAX_SID_CTX_LENGTH))
356	0	goto err;
357
358		/* NB: this defaults to zero which is X509_V_OK */
359	0	ret->verify_result = as->verify_result;
360
361	0	if (!ssl_session_strndup(&ret->ext.hostname, as->tlsext_hostname))
362	0	goto err;
363
364	0	#ifndef OPENSSL_NO_PSK
365	0	if (!ssl_session_strndup(&ret->psk_identity_hint, as->psk_identity_hint))
366	0	goto err;
367	0	if (!ssl_session_strndup(&ret->psk_identity, as->psk_identity))
368	0	goto err;
369	0	#endif
370
371	0	ret->ext.tick_lifetime_hint = (unsigned long)as->tlsext_tick_lifetime_hint;
372	0	ret->ext.tick_age_add = as->tlsext_tick_age_add;
373	0	OPENSSL_free(ret->ext.tick);
374	0	if (as->tlsext_tick != NULL) {
375	0	ret->ext.tick = as->tlsext_tick->data;
376	0	ret->ext.ticklen = as->tlsext_tick->length;
377	0	as->tlsext_tick->data = NULL;
378	0	} else {
379	0	ret->ext.tick = NULL;
380	0	}
381	0	#ifndef OPENSSL_NO_COMP
382	0	if (as->comp_id) {
383	0	if (as->comp_id->length != 1) {
384	0	ERR_raise(ERR_LIB_SSL, SSL_R_BAD_LENGTH);
385	0	goto err;
386	0	}
387	0	ret->compress_meth = as->comp_id->data[0];
388	0	} else {
389	0	ret->compress_meth = 0;
390	0	}
391	0	#endif
392
393	0	#ifndef OPENSSL_NO_SRP
394	0	if (!ssl_session_strndup(&ret->srp_username, as->srp_username))
395	0	goto err;
396	0	#endif /* OPENSSL_NO_SRP */
397		/* Flags defaults to zero which is fine */
398	0	ret->flags = (int32_t)as->flags;
399	0	ret->ext.max_early_data = as->max_early_data;
400
401	0	OPENSSL_free(ret->ext.alpn_selected);
402	0	if (as->alpn_selected != NULL) {
403	0	ret->ext.alpn_selected = as->alpn_selected->data;
404	0	ret->ext.alpn_selected_len = as->alpn_selected->length;
405	0	as->alpn_selected->data = NULL;
406	0	} else {
407	0	ret->ext.alpn_selected = NULL;
408	0	ret->ext.alpn_selected_len = 0;
409	0	}
410
411	0	ret->ext.max_fragment_len_mode = as->tlsext_max_fragment_len_mode;
412
413	0	OPENSSL_free(ret->ticket_appdata);
414	0	if (as->ticket_appdata != NULL) {
415	0	ret->ticket_appdata = as->ticket_appdata->data;
416	0	ret->ticket_appdata_len = as->ticket_appdata->length;
417	0	as->ticket_appdata->data = NULL;
418	0	} else {
419	0	ret->ticket_appdata = NULL;
420	0	ret->ticket_appdata_len = 0;
421	0	}
422
423	0	M_ASN1_free_of(as, SSL_SESSION_ASN1);
424
425	0	if ((a != NULL) && (*a == NULL))
426	0	*a = ret;
427	0	*pp = p;
428	0	return ret;
429
430	0	err:
431	0	M_ASN1_free_of(as, SSL_SESSION_ASN1);
432	0	if ((a == NULL) \|\| (*a != ret))
433	0	SSL_SESSION_free(ret);
434		return NULL;
435	0	}