/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>

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: 2025-12-04 06:33

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		typedef struct {
19		uint32_t version;
20		int32_t ssl_version;
21		ASN1_OCTET_STRING *cipher;
22		ASN1_OCTET_STRING *comp_id;
23		ASN1_OCTET_STRING *master_key;
24		ASN1_OCTET_STRING *session_id;
25		ASN1_OCTET_STRING *key_arg;
26		int64_t time;
27		int64_t timeout;
28		X509 *peer;
29		ASN1_OCTET_STRING *session_id_context;
30		int32_t verify_result;
31		ASN1_OCTET_STRING *tlsext_hostname;
32		uint64_t tlsext_tick_lifetime_hint;
33		uint32_t tlsext_tick_age_add;
34		ASN1_OCTET_STRING *tlsext_tick;
35		#ifndef OPENSSL_NO_PSK
36		ASN1_OCTET_STRING *psk_identity_hint;
37		ASN1_OCTET_STRING *psk_identity;
38		#endif
39		#ifndef OPENSSL_NO_SRP
40		ASN1_OCTET_STRING *srp_username;
41		#endif
42		uint64_t flags;
43		uint32_t max_early_data;
44		ASN1_OCTET_STRING *alpn_selected;
45		uint32_t tlsext_max_fragment_len_mode;
46		ASN1_OCTET_STRING *ticket_appdata;
47		uint32_t kex_group;
48		ASN1_OCTET_STRING *peer_rpk;
49		} SSL_SESSION_ASN1;
50
51		ASN1_SEQUENCE(SSL_SESSION_ASN1) = {
52		ASN1_EMBED(SSL_SESSION_ASN1, version, UINT32),
53		ASN1_EMBED(SSL_SESSION_ASN1, ssl_version, INT32),
54		ASN1_SIMPLE(SSL_SESSION_ASN1, cipher, ASN1_OCTET_STRING),
55		ASN1_SIMPLE(SSL_SESSION_ASN1, session_id, ASN1_OCTET_STRING),
56		ASN1_SIMPLE(SSL_SESSION_ASN1, master_key, ASN1_OCTET_STRING),
57		ASN1_IMP_OPT(SSL_SESSION_ASN1, key_arg, ASN1_OCTET_STRING, 0),
58		ASN1_EXP_OPT_EMBED(SSL_SESSION_ASN1, time, ZINT64, 1),
59		ASN1_EXP_OPT_EMBED(SSL_SESSION_ASN1, timeout, ZINT64, 2),
60		ASN1_EXP_OPT(SSL_SESSION_ASN1, peer, X509, 3),
61		ASN1_EXP_OPT(SSL_SESSION_ASN1, session_id_context, ASN1_OCTET_STRING, 4),
62		ASN1_EXP_OPT_EMBED(SSL_SESSION_ASN1, verify_result, ZINT32, 5),
63		ASN1_EXP_OPT(SSL_SESSION_ASN1, tlsext_hostname, ASN1_OCTET_STRING, 6),
64		#ifndef OPENSSL_NO_PSK
65		ASN1_EXP_OPT(SSL_SESSION_ASN1, psk_identity_hint, ASN1_OCTET_STRING, 7),
66		ASN1_EXP_OPT(SSL_SESSION_ASN1, psk_identity, ASN1_OCTET_STRING, 8),
67		#endif
68		ASN1_EXP_OPT_EMBED(SSL_SESSION_ASN1, tlsext_tick_lifetime_hint, ZUINT64, 9),
69		ASN1_EXP_OPT(SSL_SESSION_ASN1, tlsext_tick, ASN1_OCTET_STRING, 10),
70		ASN1_EXP_OPT(SSL_SESSION_ASN1, comp_id, ASN1_OCTET_STRING, 11),
71		#ifndef OPENSSL_NO_SRP
72		ASN1_EXP_OPT(SSL_SESSION_ASN1, srp_username, ASN1_OCTET_STRING, 12),
73		#endif
74		ASN1_EXP_OPT_EMBED(SSL_SESSION_ASN1, flags, ZUINT64, 13),
75		ASN1_EXP_OPT_EMBED(SSL_SESSION_ASN1, tlsext_tick_age_add, ZUINT32, 14),
76		ASN1_EXP_OPT_EMBED(SSL_SESSION_ASN1, max_early_data, ZUINT32, 15),
77		ASN1_EXP_OPT(SSL_SESSION_ASN1, alpn_selected, ASN1_OCTET_STRING, 16),
78		ASN1_EXP_OPT_EMBED(SSL_SESSION_ASN1, tlsext_max_fragment_len_mode, ZUINT32, 17),
79		ASN1_EXP_OPT(SSL_SESSION_ASN1, ticket_appdata, ASN1_OCTET_STRING, 18),
80		ASN1_EXP_OPT_EMBED(SSL_SESSION_ASN1, kex_group, UINT32, 19),
81		ASN1_EXP_OPT(SSL_SESSION_ASN1, peer_rpk, ASN1_OCTET_STRING, 20)
82	159k	} static_ASN1_SEQUENCE_END(SSL_SESSION_ASN1)
83	159k
84	159k	IMPLEMENT_STATIC_ASN1_ENCODE_FUNCTIONS(SSL_SESSION_ASN1)
85	159k
86	159k	/* Utility functions for i2d_SSL_SESSION */
87	159k
88	159k	/* Initialise OCTET STRING from buffer and length */
89	159k
90	159k	static void ssl_session_oinit(ASN1_OCTET_STRING *dest, ASN1_OCTET_STRING os,
91	159k	const unsigned char *data, size_t len)
92	159k	{
93	10.8k	os->data = (unsigned char )data; / justified cast: data is not modified */
94	10.8k	os->length = (int)len;
95	10.8k	os->flags = 0;
96	10.8k	*dest = os;
97	10.8k	}
98
99		/* Initialise OCTET STRING from string */
100		static void ssl_session_sinit(ASN1_OCTET_STRING *dest, ASN1_OCTET_STRING os,
101		const char *data)
102	10.4k	{
103	10.4k	if (data != NULL)
104	331	ssl_session_oinit(dest, os, (const unsigned char *)data, strlen(data));
105	10.1k	else
106	10.1k	*dest = NULL;
107	10.4k	}
108
109		int i2d_SSL_SESSION(const SSL_SESSION in, unsigned char *pp)
110	2.21k	{
111
112	2.21k	SSL_SESSION_ASN1 as;
113
114	2.21k	ASN1_OCTET_STRING cipher;
115	2.21k	unsigned char cipher_data[2];
116	2.21k	ASN1_OCTET_STRING master_key, session_id, sid_ctx;
117
118	2.21k	#ifndef OPENSSL_NO_COMP
119	2.21k	ASN1_OCTET_STRING comp_id;
120	2.21k	unsigned char comp_id_data;
121	2.21k	#endif
122	2.21k	ASN1_OCTET_STRING tlsext_hostname, tlsext_tick;
123	2.21k	#ifndef OPENSSL_NO_SRP
124	2.21k	ASN1_OCTET_STRING srp_username;
125	2.21k	#endif
126	2.21k	#ifndef OPENSSL_NO_PSK
127	2.21k	ASN1_OCTET_STRING psk_identity, psk_identity_hint;
128	2.21k	#endif
129	2.21k	ASN1_OCTET_STRING alpn_selected;
130	2.21k	ASN1_OCTET_STRING ticket_appdata;
131	2.21k	ASN1_OCTET_STRING peer_rpk;
132
133	2.21k	long l;
134	2.21k	int ret;
135
136	2.21k	if ((in == NULL) \|\| ((in->cipher == NULL) && (in->cipher_id == 0)))
137	0	return 0;
138
139	2.21k	memset(&as, 0, sizeof(as));
140
141	2.21k	as.version = SSL_SESSION_ASN1_VERSION;
142	2.21k	as.ssl_version = in->ssl_version;
143
144	2.21k	as.kex_group = in->kex_group;
145
146	2.21k	if (in->cipher == NULL)
147	0	l = in->cipher_id;
148	2.21k	else
149	2.21k	l = in->cipher->id;
150	2.21k	cipher_data[0] = ((unsigned char)(l >> 8L)) & 0xff;
151	2.21k	cipher_data[1] = ((unsigned char)(l)) & 0xff;
152
153	2.21k	ssl_session_oinit(&as.cipher, &cipher, cipher_data, 2);
154
155	2.21k	#ifndef OPENSSL_NO_COMP
156	2.21k	if (in->compress_meth) {
157	6	comp_id_data = (unsigned char)in->compress_meth;
158	6	ssl_session_oinit(&as.comp_id, &comp_id, &comp_id_data, 1);
159	6	}
160	2.21k	#endif
161
162	2.21k	ssl_session_oinit(&as.master_key, &master_key,
163	2.21k	in->master_key, in->master_key_length);
164
165	2.21k	ssl_session_oinit(&as.session_id, &session_id,
166	2.21k	in->session_id, in->session_id_length);
167
168	2.21k	ssl_session_oinit(&as.session_id_context, &sid_ctx,
169	2.21k	in->sid_ctx, in->sid_ctx_length);
170
171	2.21k	as.time = (int64_t)ossl_time_to_time_t(in->time);
172	2.21k	as.timeout = (int64_t)ossl_time2seconds(in->timeout);
173	2.21k	as.verify_result = in->verify_result;
174
175	2.21k	as.peer = in->peer;
176
177	2.21k	as.peer_rpk = NULL;
178	2.21k	peer_rpk.data = NULL;
179	2.21k	if (in->peer_rpk != NULL) {
180	0	peer_rpk.length = i2d_PUBKEY(in->peer_rpk, &peer_rpk.data);
181	0	if (peer_rpk.length > 0 && peer_rpk.data != NULL)
182	0	as.peer_rpk = &peer_rpk;
183	0	}
184
185	2.21k	ssl_session_sinit(&as.tlsext_hostname, &tlsext_hostname,
186	2.21k	in->ext.hostname);
187	2.21k	if (in->ext.tick) {
188	17	ssl_session_oinit(&as.tlsext_tick, &tlsext_tick,
189	17	in->ext.tick, in->ext.ticklen);
190	17	}
191	2.21k	if (in->ext.tick_lifetime_hint > 0)
192	489	as.tlsext_tick_lifetime_hint = in->ext.tick_lifetime_hint;
193	2.21k	as.tlsext_tick_age_add = in->ext.tick_age_add;
194	2.21k	#ifndef OPENSSL_NO_PSK
195	2.21k	ssl_session_sinit(&as.psk_identity_hint, &psk_identity_hint,
196	2.21k	in->psk_identity_hint);
197	2.21k	ssl_session_sinit(&as.psk_identity, &psk_identity, in->psk_identity);
198	2.21k	#endif /* OPENSSL_NO_PSK */
199	2.21k	#ifndef OPENSSL_NO_SRP
200	2.21k	ssl_session_sinit(&as.srp_username, &srp_username, in->srp_username);
201	2.21k	#endif /* OPENSSL_NO_SRP */
202
203	2.21k	as.flags = in->flags;
204	2.21k	as.max_early_data = in->ext.max_early_data;
205
206	2.21k	if (in->ext.alpn_selected == NULL)
207	2.20k	as.alpn_selected = NULL;
208	6	else
209	6	ssl_session_oinit(&as.alpn_selected, &alpn_selected,
210	6	in->ext.alpn_selected, in->ext.alpn_selected_len);
211
212	2.21k	as.tlsext_max_fragment_len_mode = in->ext.max_fragment_len_mode;
213
214	2.21k	if (in->ticket_appdata == NULL)
215	2.20k	as.ticket_appdata = NULL;
216	6	else
217	6	ssl_session_oinit(&as.ticket_appdata, &ticket_appdata,
218	6	in->ticket_appdata, in->ticket_appdata_len);
219
220	2.21k	ret = i2d_SSL_SESSION_ASN1(&as, pp);
221	2.21k	OPENSSL_free(peer_rpk.data);
222	2.21k	return ret;
223	2.21k	}
224
225		/* Utility functions for d2i_SSL_SESSION */
226
227		/* OPENSSL_strndup an OCTET STRING */
228
229		static int ssl_session_strndup(char *pdst, ASN1_OCTET_STRING src)
230	12.4k	{
231	12.4k	OPENSSL_free(*pdst);
232	12.4k	*pdst = NULL;
233	12.4k	if (src == NULL)
234	11.6k	return 1;
235	798	pdst = OPENSSL_strndup((char )src->data, src->length);
236	798	if (*pdst == NULL)
237	0	return 0;
238	798	return 1;
239	798	}
240
241		/* Copy an OCTET STRING, return error if it exceeds maximum length */
242
243		static int ssl_session_memcpy(unsigned char dst, size_t pdstlen,
244		ASN1_OCTET_STRING *src, size_t maxlen)
245	9.46k	{
246	9.46k	if (src == NULL \|\| src->length == 0) {
247	6.87k	*pdstlen = 0;
248	6.87k	return 1;
249	6.87k	}
250	2.58k	if (src->length < 0 \|\| src->length > (int)maxlen)
251	60	return 0;
252	2.52k	memcpy(dst, src->data, src->length);
253	2.52k	*pdstlen = src->length;
254	2.52k	return 1;
255	2.58k	}
256
257		SSL_SESSION d2i_SSL_SESSION(SSL_SESSION a, const unsigned char *pp,
258		long length)
259	64.8k	{
260	64.8k	return d2i_SSL_SESSION_ex(a, pp, length, NULL, NULL);
261	64.8k	}
262		SSL_SESSION d2i_SSL_SESSION_ex(SSL_SESSION a, const unsigned char *pp,
263		long length, OSSL_LIB_CTX *libctx,
264		const char *propq)
265	65.8k	{
266	65.8k	long id;
267	65.8k	size_t tmpl;
268	65.8k	const unsigned char p = pp;
269	65.8k	SSL_SESSION_ASN1 *as = NULL;
270	65.8k	SSL_SESSION *ret = NULL;
271
272	65.8k	as = d2i_SSL_SESSION_ASN1(NULL, &p, length);
273		/* ASN.1 code returns suitable error */
274	65.8k	if (as == NULL)
275	62.8k	goto err;
276
277	2.97k	if (a == NULL \|\| *a == NULL) {
278	2.97k	ret = SSL_SESSION_new();
279	2.97k	if (ret == NULL)
280	0	goto err;
281	2.97k	} else {
282	0	ret = *a;
283	0	}
284
285	2.97k	if (as->version != SSL_SESSION_ASN1_VERSION) {
286	32	ERR_raise(ERR_LIB_SSL, SSL_R_UNKNOWN_SSL_VERSION);
287	32	goto err;
288	32	}
289
290	2.94k	if ((as->ssl_version >> 8) != SSL3_VERSION_MAJOR
291	406	&& (as->ssl_version >> 8) != DTLS1_VERSION_MAJOR
292	271	&& as->ssl_version != DTLS1_BAD_VER) {
293	242	ERR_raise(ERR_LIB_SSL, SSL_R_UNSUPPORTED_SSL_VERSION);
294	242	goto err;
295	242	}
296
297	2.70k	ret->ssl_version = (int)as->ssl_version;
298
299	2.70k	ret->kex_group = as->kex_group;
300
301	2.70k	if (as->cipher->length != 2) {
302	10	ERR_raise(ERR_LIB_SSL, SSL_R_CIPHER_CODE_WRONG_LENGTH);
303	10	goto err;
304	10	}
305
306	2.69k	id = 0x03000000L \| ((unsigned long)as->cipher->data[0] << 8L)
307	2.69k	\| (unsigned long)as->cipher->data[1];
308
309	2.69k	ret->cipher_id = id;
310	2.69k	ret->cipher = ssl3_get_cipher_by_id(id);
311	2.69k	if (ret->cipher == NULL)
312	48	goto err;
313
314	2.64k	if (!ssl_session_memcpy(ret->session_id, &ret->session_id_length,
315	2.64k	as->session_id, SSL3_MAX_SSL_SESSION_ID_LENGTH))
316	12	goto err;
317
318	2.63k	if (!ssl_session_memcpy(ret->master_key, &tmpl,
319	2.63k	as->master_key, TLS13_MAX_RESUMPTION_PSK_LENGTH))
320	26	goto err;
321
322	2.60k	ret->master_key_length = tmpl;
323
324	2.60k	if (as->time != 0)
325	1.14k	ret->time = ossl_time_from_time_t(as->time);
326	1.46k	else
327	1.46k	ret->time = ossl_time_now();
328
329	2.60k	if (as->timeout != 0)
330	1.25k	ret->timeout = ossl_seconds2time(as->timeout);
331	1.35k	else
332	1.35k	ret->timeout = ossl_seconds2time(3);
333	2.60k	ssl_session_calculate_timeout(ret);
334
335	2.60k	X509_free(ret->peer);
336	2.60k	ret->peer = as->peer;
337	2.60k	as->peer = NULL;
338
339	2.60k	EVP_PKEY_free(ret->peer_rpk);
340	2.60k	ret->peer_rpk = NULL;
341	2.60k	if (as->peer_rpk != NULL) {
342	10	const unsigned char *data = as->peer_rpk->data;
343
344		/*
345		* \|data\| is incremented; we don't want to lose original ptr
346		*/
347	10	ret->peer_rpk = d2i_PUBKEY_ex(NULL, &data, as->peer_rpk->length, libctx, propq);
348	10	if (ret->peer_rpk == NULL)
349	10	goto err;
350	10	}
351
352	2.59k	if (!ssl_session_memcpy(ret->sid_ctx, &ret->sid_ctx_length,
353	2.59k	as->session_id_context, SSL_MAX_SID_CTX_LENGTH))
354	12	goto err;
355
356		/* NB: this defaults to zero which is X509_V_OK */
357	2.58k	ret->verify_result = as->verify_result;
358
359	2.58k	if (!ssl_session_strndup(&ret->ext.hostname, as->tlsext_hostname))
360	0	goto err;
361
362	2.58k	#ifndef OPENSSL_NO_PSK
363	2.58k	if (!ssl_session_strndup(&ret->psk_identity_hint, as->psk_identity_hint))
364	0	goto err;
365	2.58k	if (!ssl_session_strndup(&ret->psk_identity, as->psk_identity))
366	0	goto err;
367	2.58k	#endif
368
369	2.58k	ret->ext.tick_lifetime_hint = (unsigned long)as->tlsext_tick_lifetime_hint;
370	2.58k	ret->ext.tick_age_add = as->tlsext_tick_age_add;
371	2.58k	OPENSSL_free(ret->ext.tick);
372	2.58k	if (as->tlsext_tick != NULL) {
373	29	ret->ext.tick = as->tlsext_tick->data;
374	29	ret->ext.ticklen = as->tlsext_tick->length;
375	29	as->tlsext_tick->data = NULL;
376	2.55k	} else {
377	2.55k	ret->ext.tick = NULL;
378	2.55k	}
379	2.58k	#ifndef OPENSSL_NO_COMP
380	2.58k	if (as->comp_id) {
381	18	if (as->comp_id->length != 1) {
382	12	ERR_raise(ERR_LIB_SSL, SSL_R_BAD_LENGTH);
383	12	goto err;
384	12	}
385	6	ret->compress_meth = as->comp_id->data[0];
386	2.56k	} else {
387	2.56k	ret->compress_meth = 0;
388	2.56k	}
389	2.57k	#endif
390
391	2.57k	#ifndef OPENSSL_NO_SRP
392	2.57k	if (!ssl_session_strndup(&ret->srp_username, as->srp_username))
393	0	goto err;
394	2.57k	#endif /* OPENSSL_NO_SRP */
395		/* Flags defaults to zero which is fine */
396	2.57k	ret->flags = (int32_t)as->flags;
397	2.57k	ret->ext.max_early_data = as->max_early_data;
398
399	2.57k	OPENSSL_free(ret->ext.alpn_selected);
400	2.57k	if (as->alpn_selected != NULL) {
401	12	ret->ext.alpn_selected = as->alpn_selected->data;
402	12	ret->ext.alpn_selected_len = as->alpn_selected->length;
403	12	as->alpn_selected->data = NULL;
404	2.56k	} else {
405	2.56k	ret->ext.alpn_selected = NULL;
406	2.56k	ret->ext.alpn_selected_len = 0;
407	2.56k	}
408
409	2.57k	ret->ext.max_fragment_len_mode = as->tlsext_max_fragment_len_mode;
410
411	2.57k	OPENSSL_free(ret->ticket_appdata);
412	2.57k	if (as->ticket_appdata != NULL) {
413	6	ret->ticket_appdata = as->ticket_appdata->data;
414	6	ret->ticket_appdata_len = as->ticket_appdata->length;
415	6	as->ticket_appdata->data = NULL;
416	2.56k	} else {
417	2.56k	ret->ticket_appdata = NULL;
418	2.56k	ret->ticket_appdata_len = 0;
419	2.56k	}
420
421	2.57k	M_ASN1_free_of(as, SSL_SESSION_ASN1);
422
423	2.57k	if ((a != NULL) && (*a == NULL))
424	0	*a = ret;
425	2.57k	*pp = p;
426	2.57k	return ret;
427
428	63.2k	err:
429	63.2k	M_ASN1_free_of(as, SSL_SESSION_ASN1);
430	63.2k	if ((a == NULL) \|\| (*a != ret))
431	63.2k	SSL_SESSION_free(ret);
432		return NULL;
433	2.57k	}