X-Git-Url: https://git.openssl.org/gitweb/?p=openssl.git;a=blobdiff_plain;f=ssl%2Fssl_sess.c;h=7d94b5722060c39ee36d55098f6a36d11a2cb608;hp=85f6c7ff677a1cec504c22c89084531e54573855;hb=161ff6c5fa872ba77be22d2093920cf505534508;hpb=b69817449315f3818a8472468b3328ea755819db diff --git a/ssl/ssl_sess.c b/ssl/ssl_sess.c index 85f6c7ff67..7d94b57220 100644 --- a/ssl/ssl_sess.c +++ b/ssl/ssl_sess.c @@ -1,155 +1,37 @@ -/* 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 (c) 1998-2006 The OpenSSL Project. All rights reserved. - * - * 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 above 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 acknowledgment: - * "This product includes software developed by the OpenSSL Project - * for use in the OpenSSL Toolkit. (http://www.openssl.org/)" - * - * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to - * endorse or promote products derived from this software without - * prior written permission. For written permission, please contact - * openssl-core@openssl.org. - * - * 5. Products derived from this software may not be called "OpenSSL" - * nor may "OpenSSL" appear in their names without prior written - * permission of the OpenSSL Project. - * - * 6. Redistributions of any form whatsoever must retain the following - * acknowledgment: - * "This product includes software developed by the OpenSSL Project - * for use in the OpenSSL Toolkit (http://www.openssl.org/)" - * - * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY - * EXPRESSED 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 OpenSSL PROJECT OR - * ITS 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. - * ==================================================================== - * - * This product includes cryptographic software written by Eric Young - * (eay@cryptsoft.com). This product includes software written by Tim - * Hudson (tjh@cryptsoft.com). - * - */ -/* ==================================================================== +/* + * Copyright 1995-2018 The OpenSSL Project Authors. All Rights Reserved. * 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. + * Licensed under the OpenSSL license (the "License"). You may not use + * this file except in compliance with the License. You can obtain a copy + * in the file LICENSE in the source distribution or at + * https://www.openssl.org/source/license.html */ #include -#include #include -#ifndef OPENSSL_NO_ENGINE -# include -#endif +#include +#include "internal/refcount.h" #include "ssl_locl.h" +#include "statem/statem_locl.h" static void SSL_SESSION_list_remove(SSL_CTX *ctx, SSL_SESSION *s); static void SSL_SESSION_list_add(SSL_CTX *ctx, SSL_SESSION *s); static int remove_session_lock(SSL_CTX *ctx, SSL_SESSION *c, int lck); +/* + * SSL_get_session() and SSL_get1_session() are problematic in TLS1.3 because, + * unlike in earlier protocol versions, the session ticket may not have been + * sent yet even though a handshake has finished. The session ticket data could + * come in sometime later...or even change if multiple session ticket messages + * are sent from the server. The preferred way for applications to obtain + * a resumable session is to use SSL_CTX_sess_set_new_cb(). + */ + SSL_SESSION *SSL_get_session(const SSL *ssl) /* aka SSL_get0_session; gets 0 objects, just returns a copy of the pointer */ { - return (ssl->session); + return ssl->session; } SSL_SESSION *SSL_get1_session(SSL *ssl) @@ -161,40 +43,59 @@ SSL_SESSION *SSL_get1_session(SSL *ssl) * somebody doesn't free ssl->session between when we check it's non-null * and when we up the reference count. */ - CRYPTO_w_lock(CRYPTO_LOCK_SSL_SESSION); + CRYPTO_THREAD_read_lock(ssl->lock); sess = ssl->session; if (sess) - sess->references++; - CRYPTO_w_unlock(CRYPTO_LOCK_SSL_SESSION); - return (sess); + SSL_SESSION_up_ref(sess); + CRYPTO_THREAD_unlock(ssl->lock); + return sess; } int SSL_SESSION_set_ex_data(SSL_SESSION *s, int idx, void *arg) { - return (CRYPTO_set_ex_data(&s->ex_data, idx, arg)); + return CRYPTO_set_ex_data(&s->ex_data, idx, arg); } void *SSL_SESSION_get_ex_data(const SSL_SESSION *s, int idx) { - return (CRYPTO_get_ex_data(&s->ex_data, idx)); + return CRYPTO_get_ex_data(&s->ex_data, idx); } SSL_SESSION *SSL_SESSION_new(void) { SSL_SESSION *ss; + if (!OPENSSL_init_ssl(OPENSSL_INIT_LOAD_SSL_STRINGS, NULL)) + return NULL; + ss = OPENSSL_zalloc(sizeof(*ss)); if (ss == NULL) { SSLerr(SSL_F_SSL_SESSION_NEW, ERR_R_MALLOC_FAILURE); - return (NULL); + return NULL; } ss->verify_result = 1; /* avoid 0 (= X509_V_OK) just in case */ ss->references = 1; ss->timeout = 60 * 5 + 4; /* 5 minute timeout by default */ ss->time = (unsigned long)time(NULL); - CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_SESSION, ss, &ss->ex_data); - return (ss); + ss->lock = CRYPTO_THREAD_lock_new(); + if (ss->lock == NULL) { + SSLerr(SSL_F_SSL_SESSION_NEW, ERR_R_MALLOC_FAILURE); + OPENSSL_free(ss); + return NULL; + } + + if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_SESSION, ss, &ss->ex_data)) { + CRYPTO_THREAD_lock_free(ss->lock); + OPENSSL_free(ss); + return NULL; + } + return ss; +} + +SSL_SESSION *SSL_SESSION_dup(SSL_SESSION *src) +{ + return ssl_session_dup(src, 1); } /* @@ -220,15 +121,20 @@ SSL_SESSION *ssl_session_dup(SSL_SESSION *src, int ticket) dest->psk_identity = NULL; #endif dest->ciphers = NULL; - dest->tlsext_hostname = NULL; + dest->ext.hostname = NULL; #ifndef OPENSSL_NO_EC - dest->tlsext_ecpointformatlist = NULL; - dest->tlsext_ellipticcurvelist = NULL; + dest->ext.ecpointformats = NULL; + dest->ext.supportedgroups = NULL; #endif - dest->tlsext_tick = NULL; + dest->ext.tick = NULL; + dest->ext.alpn_selected = NULL; #ifndef OPENSSL_NO_SRP dest->srp_username = NULL; #endif + dest->peer_chain = NULL; + dest->peer = NULL; + dest->ext.tick_nonce = NULL; + dest->ticket_appdata = NULL; memset(&dest->ex_data, 0, sizeof(dest->ex_data)); /* We deliberately don't copy the prev and next pointers */ @@ -237,15 +143,24 @@ SSL_SESSION *ssl_session_dup(SSL_SESSION *src, int ticket) dest->references = 1; - if (src->peer != NULL) - X509_up_ref(src->peer); + dest->lock = CRYPTO_THREAD_lock_new(); + if (dest->lock == NULL) + goto err; + + if (!CRYPTO_new_ex_data(CRYPTO_EX_INDEX_SSL_SESSION, dest, &dest->ex_data)) + goto err; + + if (src->peer != NULL) { + if (!X509_up_ref(src->peer)) + goto err; + dest->peer = src->peer; + } if (src->peer_chain != NULL) { dest->peer_chain = X509_chain_up_ref(src->peer_chain); if (dest->peer_chain == NULL) goto err; } - #ifndef OPENSSL_NO_PSK if (src->psk_identity_hint) { dest->psk_identity_hint = OPENSSL_strdup(src->psk_identity_hint); @@ -261,47 +176,64 @@ SSL_SESSION *ssl_session_dup(SSL_SESSION *src, int ticket) } #endif - if(src->ciphers != NULL) { + if (src->ciphers != NULL) { dest->ciphers = sk_SSL_CIPHER_dup(src->ciphers); if (dest->ciphers == NULL) goto err; } if (!CRYPTO_dup_ex_data(CRYPTO_EX_INDEX_SSL_SESSION, - &dest->ex_data, &src->ex_data)) { + &dest->ex_data, &src->ex_data)) { goto err; } - if (src->tlsext_hostname) { - dest->tlsext_hostname = OPENSSL_strdup(src->tlsext_hostname); - if (dest->tlsext_hostname == NULL) { + if (src->ext.hostname) { + dest->ext.hostname = OPENSSL_strdup(src->ext.hostname); + if (dest->ext.hostname == NULL) { goto err; } } #ifndef OPENSSL_NO_EC - if (src->tlsext_ecpointformatlist) { - dest->tlsext_ecpointformatlist = - OPENSSL_memdup(src->tlsext_ecpointformatlist, - src->tlsext_ecpointformatlist_length); - if (dest->tlsext_ecpointformatlist == NULL) + if (src->ext.ecpointformats) { + dest->ext.ecpointformats = + OPENSSL_memdup(src->ext.ecpointformats, + src->ext.ecpointformats_len); + if (dest->ext.ecpointformats == NULL) goto err; } - if (src->tlsext_ellipticcurvelist) { - dest->tlsext_ellipticcurvelist = - OPENSSL_memdup(src->tlsext_ellipticcurvelist, - src->tlsext_ellipticcurvelist_length); - if (dest->tlsext_ellipticcurvelist == NULL) + if (src->ext.supportedgroups) { + dest->ext.supportedgroups = + OPENSSL_memdup(src->ext.supportedgroups, + src->ext.supportedgroups_len); + if (dest->ext.supportedgroups == NULL) goto err; } #endif - if (ticket != 0) { - dest->tlsext_tick = OPENSSL_memdup(src->tlsext_tick, src->tlsext_ticklen); - if(dest->tlsext_tick == NULL) + if (ticket != 0 && src->ext.tick != NULL) { + dest->ext.tick = + OPENSSL_memdup(src->ext.tick, src->ext.ticklen); + if (dest->ext.tick == NULL) goto err; } else { - dest->tlsext_tick_lifetime_hint = 0; - dest->tlsext_ticklen = 0; + dest->ext.tick_lifetime_hint = 0; + dest->ext.ticklen = 0; + } + + if (src->ext.alpn_selected) { + dest->ext.alpn_selected = + (unsigned char*)OPENSSL_strndup((char*)src->ext.alpn_selected, + src->ext.alpn_selected_len); + if (dest->ext.alpn_selected == NULL) { + goto err; + } + } + + if (src->ext.tick_nonce != NULL) { + dest->ext.tick_nonce = OPENSSL_memdup(src->ext.tick_nonce, + src->ext.tick_nonce_len); + if (dest->ext.tick_nonce == NULL) + goto err; } #ifndef OPENSSL_NO_SRP @@ -313,20 +245,33 @@ SSL_SESSION *ssl_session_dup(SSL_SESSION *src, int ticket) } #endif + if (src->ticket_appdata != NULL) { + dest->ticket_appdata = + OPENSSL_memdup(src->ticket_appdata, src->ticket_appdata_len); + if (dest->ticket_appdata == NULL) + goto err; + } + return dest; -err: + err: SSLerr(SSL_F_SSL_SESSION_DUP, ERR_R_MALLOC_FAILURE); SSL_SESSION_free(dest); return NULL; } -const unsigned char *SSL_SESSION_get_id(const SSL_SESSION *s, - unsigned int *len) +const unsigned char *SSL_SESSION_get_id(const SSL_SESSION *s, unsigned int *len) { if (len) - *len = s->session_id_length; + *len = (unsigned int)s->session_id_length; return s->session_id; } +const unsigned char *SSL_SESSION_get0_id_context(const SSL_SESSION *s, + unsigned int *len) +{ + if (len != NULL) + *len = (unsigned int)s->sid_ctx_length; + return s->sid_ctx; +} unsigned int SSL_SESSION_get_compress_id(const SSL_SESSION *s) { @@ -345,7 +290,7 @@ unsigned int SSL_SESSION_get_compress_id(const SSL_SESSION *s) */ #define MAX_SESS_ID_ATTEMPTS 10 -static int def_generate_session_id(const SSL *ssl, unsigned char *id, +static int def_generate_session_id(SSL *ssl, unsigned char *id, unsigned int *id_len) { unsigned int retry = 0; @@ -368,16 +313,99 @@ static int def_generate_session_id(const SSL *ssl, unsigned char *id, return 0; } +int ssl_generate_session_id(SSL *s, SSL_SESSION *ss) +{ + unsigned int tmp; + GEN_SESSION_CB cb = def_generate_session_id; + + switch (s->version) { + case SSL3_VERSION: + case TLS1_VERSION: + case TLS1_1_VERSION: + case TLS1_2_VERSION: + case TLS1_3_VERSION: + case DTLS1_BAD_VER: + case DTLS1_VERSION: + case DTLS1_2_VERSION: + ss->session_id_length = SSL3_SSL_SESSION_ID_LENGTH; + break; + default: + SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_SSL_GENERATE_SESSION_ID, + SSL_R_UNSUPPORTED_SSL_VERSION); + return 0; + } + + /*- + * If RFC5077 ticket, use empty session ID (as server). + * Note that: + * (a) ssl_get_prev_session() does lookahead into the + * ClientHello extensions to find the session ticket. + * When ssl_get_prev_session() fails, statem_srvr.c calls + * ssl_get_new_session() in tls_process_client_hello(). + * At that point, it has not yet parsed the extensions, + * however, because of the lookahead, it already knows + * whether a ticket is expected or not. + * + * (b) statem_clnt.c calls ssl_get_new_session() before parsing + * ServerHello extensions, and before recording the session + * ID received from the server, so this block is a noop. + */ + if (s->ext.ticket_expected) { + ss->session_id_length = 0; + return 1; + } + + /* Choose which callback will set the session ID */ + CRYPTO_THREAD_read_lock(s->lock); + CRYPTO_THREAD_read_lock(s->session_ctx->lock); + if (s->generate_session_id) + cb = s->generate_session_id; + else if (s->session_ctx->generate_session_id) + cb = s->session_ctx->generate_session_id; + CRYPTO_THREAD_unlock(s->session_ctx->lock); + CRYPTO_THREAD_unlock(s->lock); + /* Choose a session ID */ + memset(ss->session_id, 0, ss->session_id_length); + tmp = (int)ss->session_id_length; + if (!cb(s, ss->session_id, &tmp)) { + /* The callback failed */ + SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_SSL_GENERATE_SESSION_ID, + SSL_R_SSL_SESSION_ID_CALLBACK_FAILED); + return 0; + } + /* + * Don't allow the callback to set the session length to zero. nor + * set it higher than it was. + */ + if (tmp == 0 || tmp > ss->session_id_length) { + /* The callback set an illegal length */ + SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_SSL_GENERATE_SESSION_ID, + SSL_R_SSL_SESSION_ID_HAS_BAD_LENGTH); + return 0; + } + ss->session_id_length = tmp; + /* Finally, check for a conflict */ + if (SSL_has_matching_session_id(s, ss->session_id, + (unsigned int)ss->session_id_length)) { + SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_SSL_GENERATE_SESSION_ID, + SSL_R_SSL_SESSION_ID_CONFLICT); + return 0; + } + + return 1; +} + int ssl_get_new_session(SSL *s, int session) { /* This gets used by clients and servers. */ - unsigned int tmp; SSL_SESSION *ss = NULL; - GEN_SESSION_CB cb = def_generate_session_id; - if ((ss = SSL_SESSION_new()) == NULL) - return (0); + if ((ss = SSL_SESSION_new()) == NULL) { + SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_SSL_GET_NEW_SESSION, + ERR_R_MALLOC_FAILURE); + return 0; + } /* If the context has a default timeout, use it */ if (s->session_ctx->session_timeout == 0) @@ -389,94 +417,23 @@ int ssl_get_new_session(SSL *s, int session) s->session = NULL; if (session) { - if (s->version == SSL3_VERSION) { - ss->ssl_version = SSL3_VERSION; - ss->session_id_length = SSL3_SSL_SESSION_ID_LENGTH; - } else if (s->version == TLS1_VERSION) { - ss->ssl_version = TLS1_VERSION; - ss->session_id_length = SSL3_SSL_SESSION_ID_LENGTH; - } else if (s->version == TLS1_1_VERSION) { - ss->ssl_version = TLS1_1_VERSION; - ss->session_id_length = SSL3_SSL_SESSION_ID_LENGTH; - } else if (s->version == TLS1_2_VERSION) { - ss->ssl_version = TLS1_2_VERSION; - ss->session_id_length = SSL3_SSL_SESSION_ID_LENGTH; - } else if (s->version == DTLS1_BAD_VER) { - ss->ssl_version = DTLS1_BAD_VER; - ss->session_id_length = SSL3_SSL_SESSION_ID_LENGTH; - } else if (s->version == DTLS1_VERSION) { - ss->ssl_version = DTLS1_VERSION; - ss->session_id_length = SSL3_SSL_SESSION_ID_LENGTH; - } else if (s->version == DTLS1_2_VERSION) { - ss->ssl_version = DTLS1_2_VERSION; - ss->session_id_length = SSL3_SSL_SESSION_ID_LENGTH; - } else { - SSLerr(SSL_F_SSL_GET_NEW_SESSION, SSL_R_UNSUPPORTED_SSL_VERSION); - SSL_SESSION_free(ss); - return (0); - } - - /*- - * If RFC5077 ticket, use empty session ID (as server). - * Note that: - * (a) ssl_get_prev_session() does lookahead into the - * ClientHello extensions to find the session ticket. - * When ssl_get_prev_session() fails, s3_srvr.c calls - * ssl_get_new_session() in ssl3_get_client_hello(). - * At that point, it has not yet parsed the extensions, - * however, because of the lookahead, it already knows - * whether a ticket is expected or not. - * - * (b) s3_clnt.c calls ssl_get_new_session() before parsing - * ServerHello extensions, and before recording the session - * ID received from the server, so this block is a noop. - */ - if (s->tlsext_ticket_expected) { + if (SSL_IS_TLS13(s)) { + /* + * We generate the session id while constructing the + * NewSessionTicket in TLSv1.3. + */ ss->session_id_length = 0; - goto sess_id_done; - } - - /* Choose which callback will set the session ID */ - CRYPTO_r_lock(CRYPTO_LOCK_SSL_CTX); - if (s->generate_session_id) - cb = s->generate_session_id; - else if (s->session_ctx->generate_session_id) - cb = s->session_ctx->generate_session_id; - CRYPTO_r_unlock(CRYPTO_LOCK_SSL_CTX); - /* Choose a session ID */ - tmp = ss->session_id_length; - if (!cb(s, ss->session_id, &tmp)) { - /* The callback failed */ - SSLerr(SSL_F_SSL_GET_NEW_SESSION, - SSL_R_SSL_SESSION_ID_CALLBACK_FAILED); - SSL_SESSION_free(ss); - return (0); - } - /* - * Don't allow the callback to set the session length to zero. nor - * set it higher than it was. - */ - if (tmp == 0 || tmp > ss->session_id_length) { - /* The callback set an illegal length */ - SSLerr(SSL_F_SSL_GET_NEW_SESSION, - SSL_R_SSL_SESSION_ID_HAS_BAD_LENGTH); + } else if (!ssl_generate_session_id(s, ss)) { + /* SSLfatal() already called */ SSL_SESSION_free(ss); - return (0); - } - ss->session_id_length = tmp; - /* Finally, check for a conflict */ - if (SSL_has_matching_session_id(s, ss->session_id, - ss->session_id_length)) { - SSLerr(SSL_F_SSL_GET_NEW_SESSION, SSL_R_SSL_SESSION_ID_CONFLICT); - SSL_SESSION_free(ss); - return (0); + return 0; } - sess_id_done: - if (s->tlsext_hostname) { - ss->tlsext_hostname = OPENSSL_strdup(s->tlsext_hostname); - if (ss->tlsext_hostname == NULL) { - SSLerr(SSL_F_SSL_GET_NEW_SESSION, ERR_R_INTERNAL_ERROR); + if (s->ext.hostname) { + ss->ext.hostname = OPENSSL_strdup(s->ext.hostname); + if (ss->ext.hostname == NULL) { + SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_SSL_GET_NEW_SESSION, + ERR_R_INTERNAL_ERROR); SSL_SESSION_free(ss); return 0; } @@ -485,8 +442,9 @@ int ssl_get_new_session(SSL *s, int session) ss->session_id_length = 0; } - if (s->sid_ctx_length > sizeof ss->sid_ctx) { - SSLerr(SSL_F_SSL_GET_NEW_SESSION, ERR_R_INTERNAL_ERROR); + if (s->sid_ctx_length > sizeof(ss->sid_ctx)) { + SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_SSL_GET_NEW_SESSION, + ERR_R_INTERNAL_ERROR); SSL_SESSION_free(ss); return 0; } @@ -500,53 +458,64 @@ int ssl_get_new_session(SSL *s, int session) if (s->s3->flags & TLS1_FLAGS_RECEIVED_EXTMS) ss->flags |= SSL_SESS_FLAG_EXTMS; - return (1); + return 1; } /*- * ssl_get_prev attempts to find an SSL_SESSION to be used to resume this * connection. It is only called by servers. * - * ext: ClientHello extensions (including length prefix) - * session_id: ClientHello session ID. + * hello: The parsed ClientHello data * * Returns: - * -1: error - * 0: a session may have been found. + * -1: fatal error + * 0: no session found + * 1: a session may have been found. * * Side effects: * - If a session is found then s->session is pointed at it (after freeing an * existing session if need be) and s->verify_result is set from the session. - * - Both for new and resumed sessions, s->tlsext_ticket_expected is set to 1 + * - Both for new and resumed sessions, s->ext.ticket_expected is set to 1 * if the server should issue a new session ticket (to 0 otherwise). */ -int ssl_get_prev_session(SSL *s, const PACKET *ext, const PACKET *session_id) +int ssl_get_prev_session(SSL *s, CLIENTHELLO_MSG *hello) { /* This is used only by servers. */ SSL_SESSION *ret = NULL; - int fatal = 0; - int try_session_cache = 1; - int r; - - if (PACKET_remaining(session_id) == 0) - try_session_cache = 0; - - /* sets s->tlsext_ticket_expected and extended master secret flag */ - r = tls_check_serverhello_tlsext_early(s, ext, session_id, &ret); - switch (r) { - case -1: /* Error during processing */ - fatal = 1; - goto err; - case 0: /* No ticket found */ - case 1: /* Zero length ticket found */ - break; /* Ok to carry on processing session id. */ - case 2: /* Ticket found but not decrypted. */ - case 3: /* Ticket decrypted, *ret has been set. */ - try_session_cache = 0; - break; - default: - abort(); + int fatal = 0, discard; + int try_session_cache = 0; + SSL_TICKET_RETURN r; + + if (SSL_IS_TLS13(s)) { + if (!tls_parse_extension(s, TLSEXT_IDX_psk_kex_modes, + SSL_EXT_CLIENT_HELLO, hello->pre_proc_exts, + NULL, 0) + || !tls_parse_extension(s, TLSEXT_IDX_psk, SSL_EXT_CLIENT_HELLO, + hello->pre_proc_exts, NULL, 0)) + return -1; + + ret = s->session; + } else { + /* sets s->ext.ticket_expected */ + r = tls_get_ticket_from_client(s, hello, &ret); + switch (r) { + case SSL_TICKET_FATAL_ERR_MALLOC: + case SSL_TICKET_FATAL_ERR_OTHER: + fatal = 1; + SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_SSL_GET_PREV_SESSION, + ERR_R_INTERNAL_ERROR); + goto err; + case SSL_TICKET_NONE: + case SSL_TICKET_EMPTY: + if (hello->session_id_len > 0) + try_session_cache = 1; + break; + case SSL_TICKET_NO_DECRYPT: + case SSL_TICKET_SUCCESS: + case SSL_TICKET_SUCCESS_RENEW: + break; + } } if (try_session_cache && @@ -554,34 +523,34 @@ int ssl_get_prev_session(SSL *s, const PACKET *ext, const PACKET *session_id) !(s->session_ctx->session_cache_mode & SSL_SESS_CACHE_NO_INTERNAL_LOOKUP)) { SSL_SESSION data; - size_t local_len; + data.ssl_version = s->version; - if (!PACKET_copy_all(session_id, data.session_id, - sizeof(data.session_id), - &local_len)) { - goto err; - } - data.session_id_length = local_len; - CRYPTO_r_lock(CRYPTO_LOCK_SSL_CTX); + memcpy(data.session_id, hello->session_id, hello->session_id_len); + data.session_id_length = hello->session_id_len; + + CRYPTO_THREAD_read_lock(s->session_ctx->lock); ret = lh_SSL_SESSION_retrieve(s->session_ctx->sessions, &data); if (ret != NULL) { /* don't allow other threads to steal it: */ - CRYPTO_add(&ret->references, 1, CRYPTO_LOCK_SSL_SESSION); + SSL_SESSION_up_ref(ret); } - CRYPTO_r_unlock(CRYPTO_LOCK_SSL_CTX); + CRYPTO_THREAD_unlock(s->session_ctx->lock); if (ret == NULL) - s->session_ctx->stats.sess_miss++; + CRYPTO_atomic_add(&s->session_ctx->stats.sess_miss, 1, &discard, + s->session_ctx->lock); } if (try_session_cache && ret == NULL && s->session_ctx->get_session_cb != NULL) { int copy = 1; - ret = s->session_ctx->get_session_cb(s, PACKET_data(session_id), - PACKET_remaining(session_id), + + ret = s->session_ctx->get_session_cb(s, hello->session_id, + hello->session_id_len, ©); if (ret != NULL) { - s->session_ctx->stats.sess_cb_hit++; + CRYPTO_atomic_add(&s->session_ctx->stats.sess_cb_hit, 1, &discard, + s->session_ctx->lock); /* * Increment reference count now if the session callback asks us @@ -591,7 +560,7 @@ int ssl_get_prev_session(SSL *s, const PACKET *ext, const PACKET *session_id) * thread-safe). */ if (copy) - CRYPTO_add(&ret->references, 1, CRYPTO_LOCK_SSL_SESSION); + SSL_SESSION_up_ref(ret); /* * Add the externally cached session to the internal cache as @@ -601,11 +570,11 @@ int ssl_get_prev_session(SSL *s, const PACKET *ext, const PACKET *session_id) (s->session_ctx->session_cache_mode & SSL_SESS_CACHE_NO_INTERNAL_STORE)) { /* - * The following should not return 1, otherwise, things are - * very strange + * Either return value of SSL_CTX_add_session should not + * interrupt the session resumption process. The return + * value is intentionally ignored. */ - if (SSL_CTX_add_session(s->session_ctx, ret)) - goto err; + SSL_CTX_add_session(s->session_ctx, ret); } } } @@ -615,6 +584,10 @@ int ssl_get_prev_session(SSL *s, const PACKET *ext, const PACKET *session_id) /* Now ret is non-NULL and we own one of its reference counts. */ + /* Check TLS version consistency */ + if (ret->ssl_version != s->version) + goto err; + if (ret->sid_ctx_length != s->sid_ctx_length || memcmp(ret->sid_ctx, s->sid_ctx, ret->sid_ctx_length)) { /* @@ -635,29 +608,15 @@ int ssl_get_prev_session(SSL *s, const PACKET *ext, const PACKET *session_id) * noticing). */ - SSLerr(SSL_F_SSL_GET_PREV_SESSION, - SSL_R_SESSION_ID_CONTEXT_UNINITIALIZED); + SSLfatal(s, SSL_AD_INTERNAL_ERROR, SSL_F_SSL_GET_PREV_SESSION, + SSL_R_SESSION_ID_CONTEXT_UNINITIALIZED); fatal = 1; goto err; } - if (ret->cipher == NULL) { - unsigned char buf[5], *p; - unsigned long l; - - p = buf; - l = ret->cipher_id; - l2n(l, p); - if ((ret->ssl_version >> 8) >= SSL3_VERSION_MAJOR) - ret->cipher = ssl_get_cipher_by_char(s, &(buf[2])); - else - ret->cipher = ssl_get_cipher_by_char(s, &(buf[1])); - if (ret->cipher == NULL) - goto err; - } - if (ret->timeout < (long)(time(NULL) - ret->time)) { /* timeout */ - s->session_ctx->stats.sess_timeout++; + CRYPTO_atomic_add(&s->session_ctx->stats.sess_timeout, 1, &discard, + s->session_ctx->lock); if (try_session_cache) { /* session was from the cache, so remove it */ SSL_CTX_remove_session(s->session_ctx, ret); @@ -669,8 +628,8 @@ int ssl_get_prev_session(SSL *s, const PACKET *ext, const PACKET *session_id) if (ret->flags & SSL_SESS_FLAG_EXTMS) { /* If old session includes extms, but new does not: abort handshake */ if (!(s->s3->flags & TLS1_FLAGS_RECEIVED_EXTMS)) { - SSLerr(SSL_F_SSL_GET_PREV_SESSION, SSL_R_INCONSISTENT_EXTMS); - ssl3_send_alert(s, SSL3_AL_FATAL, SSL_AD_HANDSHAKE_FAILURE); + SSLfatal(s, SSL_AD_ILLEGAL_PARAMETER, SSL_F_SSL_GET_PREV_SESSION, + SSL_R_INCONSISTENT_EXTMS); fatal = 1; goto err; } @@ -679,34 +638,41 @@ int ssl_get_prev_session(SSL *s, const PACKET *ext, const PACKET *session_id) goto err; } - s->session_ctx->stats.sess_hit++; + if (!SSL_IS_TLS13(s)) { + /* We already did this for TLS1.3 */ + SSL_SESSION_free(s->session); + s->session = ret; + } - SSL_SESSION_free(s->session); - s->session = ret; + CRYPTO_atomic_add(&s->session_ctx->stats.sess_hit, 1, &discard, + s->session_ctx->lock); s->verify_result = s->session->verify_result; return 1; err: if (ret != NULL) { SSL_SESSION_free(ret); + /* In TLSv1.3 s->session was already set to ret, so we NULL it out */ + if (SSL_IS_TLS13(s)) + s->session = NULL; if (!try_session_cache) { /* * The session was from a ticket, so we should issue a ticket for * the new session */ - s->tlsext_ticket_expected = 1; + s->ext.ticket_expected = 1; } } if (fatal) return -1; - else - return 0; + + return 0; } int SSL_CTX_add_session(SSL_CTX *ctx, SSL_SESSION *c) { - int ret = 0; + int ret = 0, discard; SSL_SESSION *s; /* @@ -714,12 +680,12 @@ int SSL_CTX_add_session(SSL_CTX *ctx, SSL_SESSION *c) * it has two ways of access: each session is in a doubly linked list and * an lhash */ - CRYPTO_add(&c->references, 1, CRYPTO_LOCK_SSL_SESSION); + SSL_SESSION_up_ref(c); /* * if session c is in already in cache, we take back the increment later */ - CRYPTO_w_lock(CRYPTO_LOCK_SSL_CTX); + CRYPTO_THREAD_write_lock(ctx->lock); s = lh_SSL_SESSION_insert(ctx->sessions, c); /* @@ -738,6 +704,15 @@ int SSL_CTX_add_session(SSL_CTX *ctx, SSL_SESSION *c) * obtain the same session from an external cache) */ s = NULL; + } else if (s == NULL && + lh_SSL_SESSION_retrieve(ctx->sessions, c) == NULL) { + /* s == NULL can also mean OOM error in lh_SSL_SESSION_insert ... */ + + /* + * ... so take back the extra reference and also don't add + * the session to the SSL_SESSION_list at this time + */ + s = c; } /* Put at the head of the queue unless it is already in the cache */ @@ -760,17 +735,17 @@ int SSL_CTX_add_session(SSL_CTX *ctx, SSL_SESSION *c) ret = 1; if (SSL_CTX_sess_get_cache_size(ctx) > 0) { - while (SSL_CTX_sess_number(ctx) > - SSL_CTX_sess_get_cache_size(ctx)) { + while (SSL_CTX_sess_number(ctx) > SSL_CTX_sess_get_cache_size(ctx)) { if (!remove_session_lock(ctx, ctx->session_cache_tail, 0)) break; else - ctx->stats.sess_cache_full++; + CRYPTO_atomic_add(&ctx->stats.sess_cache_full, 1, &discard, + ctx->lock); } } } - CRYPTO_w_unlock(CRYPTO_LOCK_SSL_CTX); - return (ret); + CRYPTO_THREAD_unlock(ctx->lock); + return ret; } int SSL_CTX_remove_session(SSL_CTX *ctx, SSL_SESSION *c) @@ -785,25 +760,25 @@ static int remove_session_lock(SSL_CTX *ctx, SSL_SESSION *c, int lck) if ((c != NULL) && (c->session_id_length != 0)) { if (lck) - CRYPTO_w_lock(CRYPTO_LOCK_SSL_CTX); - if ((r = lh_SSL_SESSION_retrieve(ctx->sessions, c)) == c) { + CRYPTO_THREAD_write_lock(ctx->lock); + if ((r = lh_SSL_SESSION_retrieve(ctx->sessions, c)) != NULL) { ret = 1; - r = lh_SSL_SESSION_delete(ctx->sessions, c); - SSL_SESSION_list_remove(ctx, c); + r = lh_SSL_SESSION_delete(ctx->sessions, r); + SSL_SESSION_list_remove(ctx, r); } + c->not_resumable = 1; if (lck) - CRYPTO_w_unlock(CRYPTO_LOCK_SSL_CTX); + CRYPTO_THREAD_unlock(ctx->lock); - if (ret) { - r->not_resumable = 1; - if (ctx->remove_session_cb != NULL) - ctx->remove_session_cb(ctx, r); + if (ret) SSL_SESSION_free(r); - } + + if (ctx->remove_session_cb != NULL) + ctx->remove_session_cb(ctx, c); } else ret = 0; - return (ret); + return ret; } void SSL_SESSION_free(SSL_SESSION *ss) @@ -813,34 +788,29 @@ void SSL_SESSION_free(SSL_SESSION *ss) if (ss == NULL) return; - i = CRYPTO_add(&ss->references, -1, CRYPTO_LOCK_SSL_SESSION); -#ifdef REF_PRINT - REF_PRINT("SSL_SESSION", ss); -#endif + CRYPTO_DOWN_REF(&ss->references, &i, ss->lock); + REF_PRINT_COUNT("SSL_SESSION", ss); if (i > 0) return; -#ifdef REF_CHECK - if (i < 0) { - fprintf(stderr, "SSL_SESSION_free, bad reference count\n"); - abort(); /* ok */ - } -#endif + REF_ASSERT_ISNT(i < 0); CRYPTO_free_ex_data(CRYPTO_EX_INDEX_SSL_SESSION, ss, &ss->ex_data); - OPENSSL_cleanse(ss->master_key, sizeof ss->master_key); - OPENSSL_cleanse(ss->session_id, sizeof ss->session_id); + OPENSSL_cleanse(ss->master_key, sizeof(ss->master_key)); + OPENSSL_cleanse(ss->session_id, sizeof(ss->session_id)); X509_free(ss->peer); sk_X509_pop_free(ss->peer_chain, X509_free); sk_SSL_CIPHER_free(ss->ciphers); - OPENSSL_free(ss->tlsext_hostname); - OPENSSL_free(ss->tlsext_tick); + OPENSSL_free(ss->ext.hostname); + OPENSSL_free(ss->ext.tick); #ifndef OPENSSL_NO_EC - ss->tlsext_ecpointformatlist_length = 0; - OPENSSL_free(ss->tlsext_ecpointformatlist); - ss->tlsext_ellipticcurvelist_length = 0; - OPENSSL_free(ss->tlsext_ellipticcurvelist); -#endif /* OPENSSL_NO_EC */ + OPENSSL_free(ss->ext.ecpointformats); + ss->ext.ecpointformats = NULL; + ss->ext.ecpointformats_len = 0; + OPENSSL_free(ss->ext.supportedgroups); + ss->ext.supportedgroups = NULL; + ss->ext.supportedgroups_len = 0; +#endif /* OPENSSL_NO_EC */ #ifndef OPENSSL_NO_PSK OPENSSL_free(ss->psk_identity_hint); OPENSSL_free(ss->psk_identity); @@ -848,94 +818,181 @@ void SSL_SESSION_free(SSL_SESSION *ss) #ifndef OPENSSL_NO_SRP OPENSSL_free(ss->srp_username); #endif + OPENSSL_free(ss->ext.alpn_selected); + OPENSSL_free(ss->ext.tick_nonce); + OPENSSL_free(ss->ticket_appdata); + CRYPTO_THREAD_lock_free(ss->lock); OPENSSL_clear_free(ss, sizeof(*ss)); } +int SSL_SESSION_up_ref(SSL_SESSION *ss) +{ + int i; + + if (CRYPTO_UP_REF(&ss->references, &i, ss->lock) <= 0) + return 0; + + REF_PRINT_COUNT("SSL_SESSION", ss); + REF_ASSERT_ISNT(i < 2); + return ((i > 1) ? 1 : 0); +} + int SSL_set_session(SSL *s, SSL_SESSION *session) { - int ret = 0; - const SSL_METHOD *meth; + ssl_clear_bad_session(s); + if (s->ctx->method != s->method) { + if (!SSL_set_ssl_method(s, s->ctx->method)) + return 0; + } if (session != NULL) { - meth = s->ctx->method->get_ssl_method(session->ssl_version); - if (meth == NULL) - meth = s->method->get_ssl_method(session->ssl_version); - if (meth == NULL) { - SSLerr(SSL_F_SSL_SET_SESSION, SSL_R_UNABLE_TO_FIND_SSL_METHOD); - return (0); - } + SSL_SESSION_up_ref(session); + s->verify_result = session->verify_result; + } + SSL_SESSION_free(s->session); + s->session = session; - if (meth != s->method) { - if (!SSL_set_ssl_method(s, meth)) - return (0); - } + return 1; +} - /* CRYPTO_w_lock(CRYPTO_LOCK_SSL); */ - CRYPTO_add(&session->references, 1, CRYPTO_LOCK_SSL_SESSION); - SSL_SESSION_free(s->session); - s->session = session; - s->verify_result = s->session->verify_result; - /* CRYPTO_w_unlock(CRYPTO_LOCK_SSL); */ - ret = 1; - } else { - SSL_SESSION_free(s->session); - s->session = NULL; - meth = s->ctx->method; - if (meth != s->method) { - if (!SSL_set_ssl_method(s, meth)) - return (0); - } - ret = 1; +int SSL_SESSION_set1_id(SSL_SESSION *s, const unsigned char *sid, + unsigned int sid_len) +{ + if (sid_len > SSL_MAX_SSL_SESSION_ID_LENGTH) { + SSLerr(SSL_F_SSL_SESSION_SET1_ID, + SSL_R_SSL_SESSION_ID_TOO_LONG); + return 0; } - return (ret); + s->session_id_length = sid_len; + if (sid != s->session_id) + memcpy(s->session_id, sid, sid_len); + return 1; } long SSL_SESSION_set_timeout(SSL_SESSION *s, long t) { if (s == NULL) - return (0); + return 0; s->timeout = t; - return (1); + return 1; } long SSL_SESSION_get_timeout(const SSL_SESSION *s) { if (s == NULL) - return (0); - return (s->timeout); + return 0; + return s->timeout; } long SSL_SESSION_get_time(const SSL_SESSION *s) { if (s == NULL) - return (0); - return (s->time); + return 0; + return s->time; } long SSL_SESSION_set_time(SSL_SESSION *s, long t) { if (s == NULL) - return (0); + return 0; s->time = t; - return (t); + return t; +} + +int SSL_SESSION_get_protocol_version(const SSL_SESSION *s) +{ + return s->ssl_version; +} + +int SSL_SESSION_set_protocol_version(SSL_SESSION *s, int version) +{ + s->ssl_version = version; + return 1; +} + +const SSL_CIPHER *SSL_SESSION_get0_cipher(const SSL_SESSION *s) +{ + return s->cipher; +} + +int SSL_SESSION_set_cipher(SSL_SESSION *s, const SSL_CIPHER *cipher) +{ + s->cipher = cipher; + return 1; +} + +const char *SSL_SESSION_get0_hostname(const SSL_SESSION *s) +{ + return s->ext.hostname; +} + +int SSL_SESSION_set1_hostname(SSL_SESSION *s, const char *hostname) +{ + OPENSSL_free(s->ext.hostname); + if (hostname == NULL) { + s->ext.hostname = NULL; + return 1; + } + s->ext.hostname = OPENSSL_strdup(hostname); + + return s->ext.hostname != NULL; } int SSL_SESSION_has_ticket(const SSL_SESSION *s) { - return (s->tlsext_ticklen > 0) ? 1 : 0; + return (s->ext.ticklen > 0) ? 1 : 0; } unsigned long SSL_SESSION_get_ticket_lifetime_hint(const SSL_SESSION *s) { - return s->tlsext_tick_lifetime_hint; + return s->ext.tick_lifetime_hint; } -void SSL_SESSION_get0_ticket(const SSL_SESSION *s, unsigned char **tick, - size_t *len) +void SSL_SESSION_get0_ticket(const SSL_SESSION *s, const unsigned char **tick, + size_t *len) { - *len = s->tlsext_ticklen; + *len = s->ext.ticklen; if (tick != NULL) - *tick = s->tlsext_tick; + *tick = s->ext.tick; +} + +uint32_t SSL_SESSION_get_max_early_data(const SSL_SESSION *s) +{ + return s->ext.max_early_data; +} + +int SSL_SESSION_set_max_early_data(SSL_SESSION *s, uint32_t max_early_data) +{ + s->ext.max_early_data = max_early_data; + + return 1; +} + +void SSL_SESSION_get0_alpn_selected(const SSL_SESSION *s, + const unsigned char **alpn, + size_t *len) +{ + *alpn = s->ext.alpn_selected; + *len = s->ext.alpn_selected_len; +} + +int SSL_SESSION_set1_alpn_selected(SSL_SESSION *s, const unsigned char *alpn, + size_t len) +{ + OPENSSL_free(s->ext.alpn_selected); + if (alpn == NULL || len == 0) { + s->ext.alpn_selected = NULL; + s->ext.alpn_selected_len = 0; + return 1; + } + s->ext.alpn_selected = OPENSSL_memdup(alpn, len); + if (s->ext.alpn_selected == NULL) { + s->ext.alpn_selected_len = 0; + return 0; + } + s->ext.alpn_selected_len = len; + + return 1; } X509 *SSL_SESSION_get0_peer(SSL_SESSION *s) @@ -952,75 +1009,79 @@ int SSL_SESSION_set1_id_context(SSL_SESSION *s, const unsigned char *sid_ctx, return 0; } s->sid_ctx_length = sid_ctx_len; - memcpy(s->sid_ctx, sid_ctx, sid_ctx_len); + if (sid_ctx != s->sid_ctx) + memcpy(s->sid_ctx, sid_ctx, sid_ctx_len); return 1; } +int SSL_SESSION_is_resumable(const SSL_SESSION *s) +{ + /* + * In the case of EAP-FAST, we can have a pre-shared "ticket" without a + * session ID. + */ + return !s->not_resumable + && (s->session_id_length > 0 || s->ext.ticklen > 0); +} + long SSL_CTX_set_timeout(SSL_CTX *s, long t) { long l; if (s == NULL) - return (0); + return 0; l = s->session_timeout; s->session_timeout = t; - return (l); + return l; } long SSL_CTX_get_timeout(const SSL_CTX *s) { if (s == NULL) - return (0); - return (s->session_timeout); + return 0; + return s->session_timeout; } int SSL_set_session_secret_cb(SSL *s, - int (*tls_session_secret_cb) (SSL *s, - void *secret, - int *secret_len, - STACK_OF(SSL_CIPHER) - *peer_ciphers, - const SSL_CIPHER - **cipher, - void *arg), + tls_session_secret_cb_fn tls_session_secret_cb, void *arg) { if (s == NULL) - return (0); - s->tls_session_secret_cb = tls_session_secret_cb; - s->tls_session_secret_cb_arg = arg; - return (1); + return 0; + s->ext.session_secret_cb = tls_session_secret_cb; + s->ext.session_secret_cb_arg = arg; + return 1; } int SSL_set_session_ticket_ext_cb(SSL *s, tls_session_ticket_ext_cb_fn cb, void *arg) { if (s == NULL) - return (0); - s->tls_session_ticket_ext_cb = cb; - s->tls_session_ticket_ext_cb_arg = arg; - return (1); + return 0; + s->ext.session_ticket_cb = cb; + s->ext.session_ticket_cb_arg = arg; + return 1; } int SSL_set_session_ticket_ext(SSL *s, void *ext_data, int ext_len) { if (s->version >= TLS1_VERSION) { - OPENSSL_free(s->tlsext_session_ticket); - s->tlsext_session_ticket = NULL; - s->tlsext_session_ticket = + OPENSSL_free(s->ext.session_ticket); + s->ext.session_ticket = NULL; + s->ext.session_ticket = OPENSSL_malloc(sizeof(TLS_SESSION_TICKET_EXT) + ext_len); - if (s->tlsext_session_ticket == NULL) { + if (s->ext.session_ticket == NULL) { SSLerr(SSL_F_SSL_SET_SESSION_TICKET_EXT, ERR_R_MALLOC_FAILURE); return 0; } - if (ext_data) { - s->tlsext_session_ticket->length = ext_len; - s->tlsext_session_ticket->data = s->tlsext_session_ticket + 1; - memcpy(s->tlsext_session_ticket->data, ext_data, ext_len); + if (ext_data != NULL) { + s->ext.session_ticket->length = ext_len; + s->ext.session_ticket->data = s->ext.session_ticket + 1; + memcpy(s->ext.session_ticket->data, ext_data, ext_len); } else { - s->tlsext_session_ticket->length = 0; - s->tlsext_session_ticket->data = NULL; + s->ext.session_ticket->length = 0; + s->ext.session_ticket->data = NULL; } return 1; @@ -1063,12 +1124,12 @@ void SSL_CTX_flush_sessions(SSL_CTX *s, long t) if (tp.cache == NULL) return; tp.time = t; - CRYPTO_w_lock(CRYPTO_LOCK_SSL_CTX); - i = CHECKED_LHASH_OF(SSL_SESSION, tp.cache)->down_load; - CHECKED_LHASH_OF(SSL_SESSION, tp.cache)->down_load = 0; + CRYPTO_THREAD_write_lock(s->lock); + i = lh_SSL_SESSION_get_down_load(s->sessions); + lh_SSL_SESSION_set_down_load(s->sessions, 0); lh_SSL_SESSION_doall_TIMEOUT_PARAM(tp.cache, timeout_cb, &tp); - CHECKED_LHASH_OF(SSL_SESSION, tp.cache)->down_load = i; - CRYPTO_w_unlock(CRYPTO_LOCK_SSL_CTX); + lh_SSL_SESSION_set_down_load(s->sessions, i); + CRYPTO_THREAD_unlock(s->lock); } int ssl_clear_bad_session(SSL *s) @@ -1076,10 +1137,10 @@ int ssl_clear_bad_session(SSL *s) if ((s->session != NULL) && !(s->shutdown & SSL_SENT_SHUTDOWN) && !(SSL_in_init(s) || SSL_in_before(s))) { - SSL_CTX_remove_session(s->ctx, s->session); - return (1); + SSL_CTX_remove_session(s->session_ctx, s->session); + return 1; } else - return (0); + return 0; } /* locked by SSL_CTX in the calling function */ @@ -1131,8 +1192,7 @@ static void SSL_SESSION_list_add(SSL_CTX *ctx, SSL_SESSION *s) } void SSL_CTX_sess_set_new_cb(SSL_CTX *ctx, - int (*cb) (struct ssl_st *ssl, - SSL_SESSION *sess)) + int (*cb) (struct ssl_st *ssl, SSL_SESSION *sess)) { ctx->new_session_cb = cb; } @@ -1161,8 +1221,9 @@ void SSL_CTX_sess_set_get_cb(SSL_CTX *ctx, } SSL_SESSION *(*SSL_CTX_sess_get_get_cb(SSL_CTX *ctx)) (SSL *ssl, - const unsigned char *data, - int len, int *copy) { + const unsigned char + *data, int len, + int *copy) { return ctx->get_session_cb; } @@ -1216,11 +1277,52 @@ void SSL_CTX_set_cookie_generate_cb(SSL_CTX *ctx, } void SSL_CTX_set_cookie_verify_cb(SSL_CTX *ctx, - int (*cb) (SSL *ssl, const unsigned char *cookie, + int (*cb) (SSL *ssl, + const unsigned char *cookie, unsigned int cookie_len)) { ctx->app_verify_cookie_cb = cb; } -IMPLEMENT_PEM_rw(SSL_SESSION, SSL_SESSION, PEM_STRING_SSL_SESSION, - SSL_SESSION) +int SSL_SESSION_set1_ticket_appdata(SSL_SESSION *ss, const void *data, size_t len) +{ + OPENSSL_free(ss->ticket_appdata); + ss->ticket_appdata_len = 0; + if (data == NULL || len == 0) { + ss->ticket_appdata = NULL; + return 1; + } + ss->ticket_appdata = OPENSSL_memdup(data, len); + if (ss->ticket_appdata != NULL) { + ss->ticket_appdata_len = len; + return 1; + } + return 0; +} + +int SSL_SESSION_get0_ticket_appdata(SSL_SESSION *ss, void **data, size_t *len) +{ + *data = ss->ticket_appdata; + *len = ss->ticket_appdata_len; + return 1; +} + +void SSL_CTX_set_stateless_cookie_generate_cb( + SSL_CTX *ctx, + int (*cb) (SSL *ssl, + unsigned char *cookie, + size_t *cookie_len)) +{ + ctx->gen_stateless_cookie_cb = cb; +} + +void SSL_CTX_set_stateless_cookie_verify_cb( + SSL_CTX *ctx, + int (*cb) (SSL *ssl, + const unsigned char *cookie, + size_t cookie_len)) +{ + ctx->verify_stateless_cookie_cb = cb; +} + +IMPLEMENT_PEM_rw(SSL_SESSION, SSL_SESSION, PEM_STRING_SSL_SESSION, SSL_SESSION)