diff options
Diffstat (limited to 'src/ssl/ssl_asn1.c')
| -rw-r--r-- | src/ssl/ssl_asn1.c | 591 |
1 files changed, 591 insertions, 0 deletions
diff --git a/src/ssl/ssl_asn1.c b/src/ssl/ssl_asn1.c new file mode 100644 index 0000000..d39da87 --- /dev/null +++ b/src/ssl/ssl_asn1.c @@ -0,0 +1,591 @@ +/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com) + * All rights reserved. + * + * This package is an SSL implementation written + * by Eric Young (eay@cryptsoft.com). + * The implementation was written so as to conform with Netscapes SSL. + * + * This library is free for commercial and non-commercial use as long as + * the following conditions are aheared to. The following conditions + * apply to all code found in this distribution, be it the RC4, RSA, + * lhash, DES, etc., code; not just the SSL code. The SSL documentation + * included with this distribution is covered by the same copyright terms + * except that the holder is Tim Hudson (tjh@cryptsoft.com). + * + * Copyright remains Eric Young's, and as such any Copyright notices in + * the code are not to be removed. + * If this package is used in a product, Eric Young should be given attribution + * as the author of the parts of the library used. + * This can be in the form of a textual message at program startup or + * in documentation (online or textual) provided with the package. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: + * "This product includes cryptographic software written by + * Eric Young (eay@cryptsoft.com)" + * The word 'cryptographic' can be left out if the rouines from the library + * being used are not cryptographic related :-). + * 4. If you include any Windows specific code (or a derivative thereof) from + * the apps directory (application code) you must include an acknowledgement: + * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)" + * + * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * The licence and distribution terms for any publically available version or + * derivative of this code cannot be changed. i.e. this code cannot simply be + * copied and put under another distribution licence + * [including the GNU Public Licence.] + */ +/* ==================================================================== + * 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 <limits.h> +#include <string.h> + +#include <openssl/bytestring.h> +#include <openssl/err.h> +#include <openssl/x509.h> + +#include "ssl_locl.h" + + +/* An SSL_SESSION is serialized as the following ASN.1 structure: + * + * SSLSession ::= SEQUENCE { + * version INTEGER (1), -- ignored + * sslVersion INTEGER, -- protocol version number + * cipher OCTET STRING, -- two bytes long + * sessionID OCTET STRING, + * masterKey OCTET STRING, + * time [1] INTEGER OPTIONAL, -- seconds since UNIX epoch + * timeout [2] INTEGER OPTIONAL, -- in seconds + * peer [3] Certificate OPTIONAL, + * sessionIDContext [4] OCTET STRING OPTIONAL, + * verifyResult [5] INTEGER OPTIONAL, -- one of X509_V_* codes + * hostName [6] OCTET STRING OPTIONAL, + * -- from server_name extension + * pskIdentity [8] OCTET STRING OPTIONAL, + * ticketLifetimeHint [9] INTEGER OPTIONAL, -- client-only + * ticket [10] OCTET STRING OPTIONAL, -- client-only + * peerSHA256 [13] OCTET STRING OPTIONAL, + * originalHandshakeHash [14] OCTET STRING OPTIONAL, + * signedCertTimestampList [15] OCTET STRING OPTIONAL, + * -- contents of SCT extension + * ocspResponse [16] OCTET STRING OPTIONAL, + * -- stapled OCSP response from the server + * extendedMasterSecret [17] BOOLEAN OPTIONAL, + * } + * + * Note: historically this serialization has included other optional + * fields. Their presense is currently treated as a parse error: + * + * keyArg [0] IMPLICIT OCTET STRING OPTIONAL, + * pskIdentityHint [7] OCTET STRING OPTIONAL, + * compressionMethod [11] OCTET STRING OPTIONAL, + * srpUsername [12] OCTET STRING OPTIONAL, */ + +static const int kTimeTag = + CBS_ASN1_CONSTRUCTED | CBS_ASN1_CONTEXT_SPECIFIC | 1; +static const int kTimeoutTag = + CBS_ASN1_CONSTRUCTED | CBS_ASN1_CONTEXT_SPECIFIC | 2; +static const int kPeerTag = + CBS_ASN1_CONSTRUCTED | CBS_ASN1_CONTEXT_SPECIFIC | 3; + static const int kSessionIDContextTag = + CBS_ASN1_CONSTRUCTED | CBS_ASN1_CONTEXT_SPECIFIC | 4; +static const int kVerifyResultTag = + CBS_ASN1_CONSTRUCTED | CBS_ASN1_CONTEXT_SPECIFIC | 5; +static const int kHostNameTag = + CBS_ASN1_CONSTRUCTED | CBS_ASN1_CONTEXT_SPECIFIC | 6; +static const int kPSKIdentityTag = + CBS_ASN1_CONSTRUCTED | CBS_ASN1_CONTEXT_SPECIFIC | 8; +static const int kTicketLifetimeHintTag = + CBS_ASN1_CONSTRUCTED | CBS_ASN1_CONTEXT_SPECIFIC | 9; +static const int kTicketTag = + CBS_ASN1_CONSTRUCTED | CBS_ASN1_CONTEXT_SPECIFIC | 10; +static const int kPeerSHA256Tag = + CBS_ASN1_CONSTRUCTED | CBS_ASN1_CONTEXT_SPECIFIC | 13; +static const int kOriginalHandshakeHashTag = + CBS_ASN1_CONSTRUCTED | CBS_ASN1_CONTEXT_SPECIFIC | 14; +static const int kSignedCertTimestampListTag = + CBS_ASN1_CONSTRUCTED | CBS_ASN1_CONTEXT_SPECIFIC | 15; +static const int kOCSPResponseTag = + CBS_ASN1_CONSTRUCTED | CBS_ASN1_CONTEXT_SPECIFIC | 16; +static const int kExtendedMasterSecretTag = + CBS_ASN1_CONSTRUCTED | CBS_ASN1_CONTEXT_SPECIFIC | 17; + +static int SSL_SESSION_to_bytes_full(SSL_SESSION *in, uint8_t **out_data, + size_t *out_len, int for_ticket) { + CBB cbb, session, child, child2; + + if (in == NULL || in->cipher == NULL) { + return 0; + } + + if (!CBB_init(&cbb, 0)) { + return 0; + } + + if (!CBB_add_asn1(&cbb, &session, CBS_ASN1_SEQUENCE) || + !CBB_add_asn1_uint64(&session, SSL_SESSION_ASN1_VERSION) || + !CBB_add_asn1_uint64(&session, in->ssl_version) || + !CBB_add_asn1(&session, &child, CBS_ASN1_OCTETSTRING) || + !CBB_add_u16(&child, (uint16_t)(in->cipher->id & 0xffff)) || + !CBB_add_asn1(&session, &child, CBS_ASN1_OCTETSTRING) || + /* The session ID is irrelevant for a session ticket. */ + !CBB_add_bytes(&child, in->session_id, + for_ticket ? 0 : in->session_id_length) || + !CBB_add_asn1(&session, &child, CBS_ASN1_OCTETSTRING) || + !CBB_add_bytes(&child, in->master_key, in->master_key_length)) { + OPENSSL_PUT_ERROR(SSL, i2d_SSL_SESSION, ERR_R_MALLOC_FAILURE); + goto err; + } + + if (in->time != 0) { + if (!CBB_add_asn1(&session, &child, kTimeTag) || + !CBB_add_asn1_uint64(&child, in->time)) { + OPENSSL_PUT_ERROR(SSL, i2d_SSL_SESSION, ERR_R_MALLOC_FAILURE); + goto err; + } + } + + if (in->timeout != 0) { + if (!CBB_add_asn1(&session, &child, kTimeoutTag) || + !CBB_add_asn1_uint64(&child, in->timeout)) { + OPENSSL_PUT_ERROR(SSL, i2d_SSL_SESSION, ERR_R_MALLOC_FAILURE); + goto err; + } + } + + /* The peer certificate is only serialized if the SHA-256 isn't + * serialized instead. */ + if (in->peer && !in->peer_sha256_valid) { + uint8_t *buf; + int len = i2d_X509(in->peer, NULL); + if (len < 0) { + goto err; + } + if (!CBB_add_asn1(&session, &child, kPeerTag) || + !CBB_add_space(&child, &buf, len)) { + OPENSSL_PUT_ERROR(SSL, i2d_SSL_SESSION, ERR_R_MALLOC_FAILURE); + goto err; + } + if (buf != NULL && i2d_X509(in->peer, &buf) < 0) { + goto err; + } + } + + /* Although it is OPTIONAL and usually empty, OpenSSL has + * historically always encoded the sid_ctx. */ + if (!CBB_add_asn1(&session, &child, kSessionIDContextTag) || + !CBB_add_asn1(&child, &child2, CBS_ASN1_OCTETSTRING) || + !CBB_add_bytes(&child2, in->sid_ctx, in->sid_ctx_length)) { + OPENSSL_PUT_ERROR(SSL, i2d_SSL_SESSION, ERR_R_MALLOC_FAILURE); + goto err; + } + + if (in->verify_result != X509_V_OK) { + if (!CBB_add_asn1(&session, &child, kVerifyResultTag) || + !CBB_add_asn1_uint64(&child, in->verify_result)) { + OPENSSL_PUT_ERROR(SSL, i2d_SSL_SESSION, ERR_R_MALLOC_FAILURE); + goto err; + } + } + + if (in->tlsext_hostname) { + if (!CBB_add_asn1(&session, &child, kHostNameTag) || + !CBB_add_asn1(&child, &child2, CBS_ASN1_OCTETSTRING) || + !CBB_add_bytes(&child2, (const uint8_t *)in->tlsext_hostname, + strlen(in->tlsext_hostname))) { + OPENSSL_PUT_ERROR(SSL, i2d_SSL_SESSION, ERR_R_MALLOC_FAILURE); + goto err; + } + } + + if (in->psk_identity) { + if (!CBB_add_asn1(&session, &child, kPSKIdentityTag) || + !CBB_add_asn1(&child, &child2, CBS_ASN1_OCTETSTRING) || + !CBB_add_bytes(&child2, (const uint8_t *)in->psk_identity, + strlen(in->psk_identity))) { + OPENSSL_PUT_ERROR(SSL, i2d_SSL_SESSION, ERR_R_MALLOC_FAILURE); + goto err; + } + } + + if (in->tlsext_tick_lifetime_hint > 0) { + if (!CBB_add_asn1(&session, &child, kTicketLifetimeHintTag) || + !CBB_add_asn1_uint64(&child, in->tlsext_tick_lifetime_hint)) { + OPENSSL_PUT_ERROR(SSL, i2d_SSL_SESSION, ERR_R_MALLOC_FAILURE); + goto err; + } + } + + if (in->tlsext_tick) { + if (!CBB_add_asn1(&session, &child, kTicketTag) || + !CBB_add_asn1(&child, &child2, CBS_ASN1_OCTETSTRING) || + !CBB_add_bytes(&child2, in->tlsext_tick, in->tlsext_ticklen)) { + OPENSSL_PUT_ERROR(SSL, i2d_SSL_SESSION, ERR_R_MALLOC_FAILURE); + goto err; + } + } + + if (in->peer_sha256_valid) { + if (!CBB_add_asn1(&session, &child, kPeerSHA256Tag) || + !CBB_add_asn1(&child, &child2, CBS_ASN1_OCTETSTRING) || + !CBB_add_bytes(&child2, in->peer_sha256, sizeof(in->peer_sha256))) { + OPENSSL_PUT_ERROR(SSL, i2d_SSL_SESSION, ERR_R_MALLOC_FAILURE); + goto err; + } + } + + if (in->original_handshake_hash_len > 0) { + if (!CBB_add_asn1(&session, &child, kOriginalHandshakeHashTag) || + !CBB_add_asn1(&child, &child2, CBS_ASN1_OCTETSTRING) || + !CBB_add_bytes(&child2, in->original_handshake_hash, + in->original_handshake_hash_len)) { + OPENSSL_PUT_ERROR(SSL, i2d_SSL_SESSION, ERR_R_MALLOC_FAILURE); + goto err; + } + } + + if (in->tlsext_signed_cert_timestamp_list_length > 0) { + if (!CBB_add_asn1(&session, &child, kSignedCertTimestampListTag) || + !CBB_add_asn1(&child, &child2, CBS_ASN1_OCTETSTRING) || + !CBB_add_bytes(&child2, in->tlsext_signed_cert_timestamp_list, + in->tlsext_signed_cert_timestamp_list_length)) { + OPENSSL_PUT_ERROR(SSL, i2d_SSL_SESSION, ERR_R_MALLOC_FAILURE); + goto err; + } + } + + if (in->ocsp_response_length > 0) { + if (!CBB_add_asn1(&session, &child, kOCSPResponseTag) || + !CBB_add_asn1(&child, &child2, CBS_ASN1_OCTETSTRING) || + !CBB_add_bytes(&child2, in->ocsp_response, in->ocsp_response_length)) { + OPENSSL_PUT_ERROR(SSL, i2d_SSL_SESSION, ERR_R_MALLOC_FAILURE); + goto err; + } + } + + if (in->extended_master_secret) { + if (!CBB_add_asn1(&session, &child, kExtendedMasterSecretTag) || + !CBB_add_asn1(&child, &child2, CBS_ASN1_BOOLEAN) || + !CBB_add_u8(&child2, 0xff)) { + OPENSSL_PUT_ERROR(SSL, i2d_SSL_SESSION, ERR_R_MALLOC_FAILURE); + goto err; + } + } + + if (!CBB_finish(&cbb, out_data, out_len)) { + OPENSSL_PUT_ERROR(SSL, i2d_SSL_SESSION, ERR_R_MALLOC_FAILURE); + goto err; + } + return 1; + + err: + CBB_cleanup(&cbb); + return 0; +} + +int SSL_SESSION_to_bytes(SSL_SESSION *in, uint8_t **out_data, size_t *out_len) { + return SSL_SESSION_to_bytes_full(in, out_data, out_len, 0); +} + +int SSL_SESSION_to_bytes_for_ticket(SSL_SESSION *in, uint8_t **out_data, + size_t *out_len) { + return SSL_SESSION_to_bytes_full(in, out_data, out_len, 1); +} + +int i2d_SSL_SESSION(SSL_SESSION *in, uint8_t **pp) { + uint8_t *out; + size_t len; + + if (!SSL_SESSION_to_bytes(in, &out, &len)) { + return -1; + } + + if (len > INT_MAX) { + OPENSSL_free(out); + OPENSSL_PUT_ERROR(SSL, i2d_SSL_SESSION, ERR_R_OVERFLOW); + return -1; + } + + if (pp) { + memcpy(*pp, out, len); + *pp += len; + } + OPENSSL_free(out); + + return len; +} + +/* d2i_SSL_SESSION_get_string gets an optional ASN.1 OCTET STRING + * explicitly tagged with |tag| from |cbs| and saves it in |*out|. On + * entry, if |*out| is not NULL, it frees the existing contents. If + * the element was not found, it sets |*out| to NULL. It returns one + * on success, whether or not the element was found, and zero on + * decode error. */ +static int d2i_SSL_SESSION_get_string(CBS *cbs, char **out, unsigned tag) { + CBS value; + int present; + if (!CBS_get_optional_asn1_octet_string(cbs, &value, &present, tag)) { + OPENSSL_PUT_ERROR(SSL, d2i_SSL_SESSION, SSL_R_INVALID_SSL_SESSION); + return 0; + } + if (present) { + if (CBS_contains_zero_byte(&value)) { + OPENSSL_PUT_ERROR(SSL, d2i_SSL_SESSION, SSL_R_INVALID_SSL_SESSION); + return 0; + } + if (!CBS_strdup(&value, out)) { + OPENSSL_PUT_ERROR(SSL, d2i_SSL_SESSION, ERR_R_MALLOC_FAILURE); + return 0; + } + } else if (*out) { + OPENSSL_free(*out); + *out = NULL; + } + return 1; +} + +/* d2i_SSL_SESSION_get_string gets an optional ASN.1 OCTET STRING + * explicitly tagged with |tag| from |cbs| and stows it in |*out_ptr| + * and |*out_len|. If |*out_ptr| is not NULL, it frees the existing + * contents. On entry, if the element was not found, it sets + * |*out_ptr| to NULL. It returns one on success, whether or not the + * element was found, and zero on decode error. */ +static int d2i_SSL_SESSION_get_octet_string(CBS *cbs, uint8_t **out_ptr, + size_t *out_len, unsigned tag) { + CBS value; + if (!CBS_get_optional_asn1_octet_string(cbs, &value, NULL, tag)) { + OPENSSL_PUT_ERROR(SSL, d2i_SSL_SESSION, SSL_R_INVALID_SSL_SESSION); + return 0; + } + if (!CBS_stow(&value, out_ptr, out_len)) { + OPENSSL_PUT_ERROR(SSL, d2i_SSL_SESSION, ERR_R_MALLOC_FAILURE); + return 0; + } + return 1; +} + +SSL_SESSION *d2i_SSL_SESSION(SSL_SESSION **a, const uint8_t **pp, long length) { + SSL_SESSION *ret = NULL; + CBS cbs, session, cipher, session_id, master_key; + CBS peer, sid_ctx, peer_sha256, original_handshake_hash; + int has_peer, has_peer_sha256, extended_master_secret; + uint64_t version, ssl_version; + uint64_t session_time, timeout, verify_result, ticket_lifetime_hint; + + if (a && *a) { + ret = *a; + } else { + ret = SSL_SESSION_new(); + if (ret == NULL) { + goto err; + } + } + + CBS_init(&cbs, *pp, length); + if (!CBS_get_asn1(&cbs, &session, CBS_ASN1_SEQUENCE) || + !CBS_get_asn1_uint64(&session, &version) || + !CBS_get_asn1_uint64(&session, &ssl_version) || + !CBS_get_asn1(&session, &cipher, CBS_ASN1_OCTETSTRING) || + !CBS_get_asn1(&session, &session_id, CBS_ASN1_OCTETSTRING) || + !CBS_get_asn1(&session, &master_key, CBS_ASN1_OCTETSTRING) || + !CBS_get_optional_asn1_uint64(&session, &session_time, kTimeTag, + time(NULL)) || + !CBS_get_optional_asn1_uint64(&session, &timeout, kTimeoutTag, 3) || + !CBS_get_optional_asn1(&session, &peer, &has_peer, kPeerTag) || + !CBS_get_optional_asn1_octet_string(&session, &sid_ctx, NULL, + kSessionIDContextTag) || + !CBS_get_optional_asn1_uint64(&session, &verify_result, kVerifyResultTag, + X509_V_OK)) { + OPENSSL_PUT_ERROR(SSL, d2i_SSL_SESSION, SSL_R_INVALID_SSL_SESSION); + goto err; + } + if (!d2i_SSL_SESSION_get_string(&session, &ret->tlsext_hostname, + kHostNameTag) || + !d2i_SSL_SESSION_get_string(&session, &ret->psk_identity, + kPSKIdentityTag)) { + goto err; + } + if (!CBS_get_optional_asn1_uint64(&session, &ticket_lifetime_hint, + kTicketLifetimeHintTag, 0)) { + OPENSSL_PUT_ERROR(SSL, d2i_SSL_SESSION, SSL_R_INVALID_SSL_SESSION); + goto err; + } + if (!d2i_SSL_SESSION_get_octet_string(&session, &ret->tlsext_tick, + &ret->tlsext_ticklen, kTicketTag)) { + goto err; + } + if (!CBS_get_optional_asn1_octet_string(&session, &peer_sha256, + &has_peer_sha256, kPeerSHA256Tag) || + !CBS_get_optional_asn1_octet_string(&session, &original_handshake_hash, + NULL, kOriginalHandshakeHashTag)) { + OPENSSL_PUT_ERROR(SSL, d2i_SSL_SESSION, SSL_R_INVALID_SSL_SESSION); + goto err; + } + if (!d2i_SSL_SESSION_get_octet_string( + &session, &ret->tlsext_signed_cert_timestamp_list, + &ret->tlsext_signed_cert_timestamp_list_length, + kSignedCertTimestampListTag) || + !d2i_SSL_SESSION_get_octet_string( + &session, &ret->ocsp_response, &ret->ocsp_response_length, + kOCSPResponseTag)) { + goto err; + } + if (!CBS_get_optional_asn1_bool(&session, &extended_master_secret, + kExtendedMasterSecretTag, + 0 /* default to false */)) { + OPENSSL_PUT_ERROR(SSL, d2i_SSL_SESSION, SSL_R_INVALID_SSL_SESSION); + goto err; + } + ret->extended_master_secret = extended_master_secret; + + /* Ignore |version|. The structure version number is ignored. */ + + /* Only support SSLv3/TLS and DTLS. */ + if ((ssl_version >> 8) != SSL3_VERSION_MAJOR && + (ssl_version >> 8) != (DTLS1_VERSION >> 8)) { + OPENSSL_PUT_ERROR(SSL, d2i_SSL_SESSION, SSL_R_UNKNOWN_SSL_VERSION); + goto err; + } + ret->ssl_version = ssl_version; + + uint16_t cipher_value; + if (!CBS_get_u16(&cipher, &cipher_value) || CBS_len(&cipher) != 0) { + OPENSSL_PUT_ERROR(SSL, d2i_SSL_SESSION, SSL_R_CIPHER_CODE_WRONG_LENGTH); + goto err; + } + ret->cipher = ssl3_get_cipher_by_value(cipher_value); + if (ret->cipher == NULL) { + OPENSSL_PUT_ERROR(SSL, d2i_SSL_SESSION, SSL_R_UNSUPPORTED_CIPHER); + goto err; + } + + if (CBS_len(&session_id) > SSL3_MAX_SSL_SESSION_ID_LENGTH) { + OPENSSL_PUT_ERROR(SSL, d2i_SSL_SESSION, SSL_R_INVALID_SSL_SESSION); + goto err; + } + memcpy(ret->session_id, CBS_data(&session_id), CBS_len(&session_id)); + ret->session_id_length = CBS_len(&session_id); + + if (CBS_len(&master_key) > SSL_MAX_MASTER_KEY_LENGTH) { + OPENSSL_PUT_ERROR(SSL, d2i_SSL_SESSION, SSL_R_INVALID_SSL_SESSION); + goto err; + } + memcpy(ret->master_key, CBS_data(&master_key), CBS_len(&master_key)); + ret->master_key_length = CBS_len(&master_key); + + if (session_time > LONG_MAX || + timeout > LONG_MAX) { + OPENSSL_PUT_ERROR(SSL, d2i_SSL_SESSION, SSL_R_INVALID_SSL_SESSION); + goto err; + } + ret->time = session_time; + ret->timeout = timeout; + + if (ret->peer != NULL) { + X509_free(ret->peer); + ret->peer = NULL; + } + if (has_peer) { + const uint8_t *ptr; + ptr = CBS_data(&peer); + ret->peer = d2i_X509(NULL, &ptr, CBS_len(&peer)); + if (ret->peer == NULL) { + goto err; + } + if (ptr != CBS_data(&peer) + CBS_len(&peer)) { + OPENSSL_PUT_ERROR(SSL, d2i_SSL_SESSION, SSL_R_INVALID_SSL_SESSION); + goto err; + } + } + + if (CBS_len(&sid_ctx) > sizeof(ret->sid_ctx)) { + OPENSSL_PUT_ERROR(SSL, d2i_SSL_SESSION, SSL_R_INVALID_SSL_SESSION); + goto err; + } + memcpy(ret->sid_ctx, CBS_data(&sid_ctx), CBS_len(&sid_ctx)); + ret->sid_ctx_length = CBS_len(&sid_ctx); + + if (verify_result > LONG_MAX || + ticket_lifetime_hint > 0xffffffff) { + OPENSSL_PUT_ERROR(SSL, d2i_SSL_SESSION, SSL_R_INVALID_SSL_SESSION); + goto err; + } + ret->verify_result = verify_result; + ret->tlsext_tick_lifetime_hint = ticket_lifetime_hint; + + if (has_peer_sha256) { + if (CBS_len(&peer_sha256) != sizeof(ret->peer_sha256)) { + OPENSSL_PUT_ERROR(SSL, d2i_SSL_SESSION, SSL_R_INVALID_SSL_SESSION); + goto err; + } + memcpy(ret->peer_sha256, CBS_data(&peer_sha256), sizeof(ret->peer_sha256)); + ret->peer_sha256_valid = 1; + } else { + ret->peer_sha256_valid = 0; + } + + if (CBS_len(&original_handshake_hash) > + sizeof(ret->original_handshake_hash)) { + OPENSSL_PUT_ERROR(SSL, d2i_SSL_SESSION, SSL_R_INVALID_SSL_SESSION); + goto err; + } + memcpy(ret->original_handshake_hash, CBS_data(&original_handshake_hash), + CBS_len(&original_handshake_hash)); + ret->original_handshake_hash_len = CBS_len(&original_handshake_hash); + + if (a) { + *a = ret; + } + *pp = CBS_data(&cbs); + return ret; + +err: + if (a && *a != ret) { + SSL_SESSION_free(ret); + } + return NULL; +} |