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Diffstat (limited to 'ics-openvpn-stripped/main/openssl/ssl/d1_lib.c')
-rw-r--r--ics-openvpn-stripped/main/openssl/ssl/d1_lib.c496
1 files changed, 0 insertions, 496 deletions
diff --git a/ics-openvpn-stripped/main/openssl/ssl/d1_lib.c b/ics-openvpn-stripped/main/openssl/ssl/d1_lib.c
deleted file mode 100644
index 82ca6539..00000000
--- a/ics-openvpn-stripped/main/openssl/ssl/d1_lib.c
+++ /dev/null
@@ -1,496 +0,0 @@
-/* ssl/d1_lib.c */
-/*
- * DTLS implementation written by Nagendra Modadugu
- * (nagendra@cs.stanford.edu) for the OpenSSL project 2005.
- */
-/* ====================================================================
- * Copyright (c) 1999-2005 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).
- *
- */
-
-#include <stdio.h>
-#define USE_SOCKETS
-#include <openssl/objects.h>
-#include "ssl_locl.h"
-
-#if defined(OPENSSL_SYS_WIN32) || defined(OPENSSL_SYS_VMS)
-#include <sys/timeb.h>
-#endif
-
-static void get_current_time(struct timeval *t);
-const char dtls1_version_str[]="DTLSv1" OPENSSL_VERSION_PTEXT;
-int dtls1_listen(SSL *s, struct sockaddr *client);
-
-SSL3_ENC_METHOD DTLSv1_enc_data={
- dtls1_enc,
- tls1_mac,
- tls1_setup_key_block,
- tls1_generate_master_secret,
- tls1_change_cipher_state,
- tls1_final_finish_mac,
- TLS1_FINISH_MAC_LENGTH,
- tls1_cert_verify_mac,
- TLS_MD_CLIENT_FINISH_CONST,TLS_MD_CLIENT_FINISH_CONST_SIZE,
- TLS_MD_SERVER_FINISH_CONST,TLS_MD_SERVER_FINISH_CONST_SIZE,
- tls1_alert_code,
- tls1_export_keying_material,
- };
-
-long dtls1_default_timeout(void)
- {
- /* 2 hours, the 24 hours mentioned in the DTLSv1 spec
- * is way too long for http, the cache would over fill */
- return(60*60*2);
- }
-
-int dtls1_new(SSL *s)
- {
- DTLS1_STATE *d1;
-
- if (!ssl3_new(s)) return(0);
- if ((d1=OPENSSL_malloc(sizeof *d1)) == NULL) return (0);
- memset(d1,0, sizeof *d1);
-
- /* d1->handshake_epoch=0; */
-
- d1->unprocessed_rcds.q=pqueue_new();
- d1->processed_rcds.q=pqueue_new();
- d1->buffered_messages = pqueue_new();
- d1->sent_messages=pqueue_new();
- d1->buffered_app_data.q=pqueue_new();
-
- if ( s->server)
- {
- d1->cookie_len = sizeof(s->d1->cookie);
- }
-
- if( ! d1->unprocessed_rcds.q || ! d1->processed_rcds.q
- || ! d1->buffered_messages || ! d1->sent_messages || ! d1->buffered_app_data.q)
- {
- if ( d1->unprocessed_rcds.q) pqueue_free(d1->unprocessed_rcds.q);
- if ( d1->processed_rcds.q) pqueue_free(d1->processed_rcds.q);
- if ( d1->buffered_messages) pqueue_free(d1->buffered_messages);
- if ( d1->sent_messages) pqueue_free(d1->sent_messages);
- if ( d1->buffered_app_data.q) pqueue_free(d1->buffered_app_data.q);
- OPENSSL_free(d1);
- return (0);
- }
-
- s->d1=d1;
- s->method->ssl_clear(s);
- return(1);
- }
-
-static void dtls1_clear_queues(SSL *s)
- {
- pitem *item = NULL;
- hm_fragment *frag = NULL;
- DTLS1_RECORD_DATA *rdata;
-
- while( (item = pqueue_pop(s->d1->unprocessed_rcds.q)) != NULL)
- {
- rdata = (DTLS1_RECORD_DATA *) item->data;
- if (rdata->rbuf.buf)
- {
- OPENSSL_free(rdata->rbuf.buf);
- }
- OPENSSL_free(item->data);
- pitem_free(item);
- }
-
- while( (item = pqueue_pop(s->d1->processed_rcds.q)) != NULL)
- {
- rdata = (DTLS1_RECORD_DATA *) item->data;
- if (rdata->rbuf.buf)
- {
- OPENSSL_free(rdata->rbuf.buf);
- }
- OPENSSL_free(item->data);
- pitem_free(item);
- }
-
- while( (item = pqueue_pop(s->d1->buffered_messages)) != NULL)
- {
- frag = (hm_fragment *)item->data;
- OPENSSL_free(frag->fragment);
- OPENSSL_free(frag);
- pitem_free(item);
- }
-
- while ( (item = pqueue_pop(s->d1->sent_messages)) != NULL)
- {
- frag = (hm_fragment *)item->data;
- OPENSSL_free(frag->fragment);
- OPENSSL_free(frag);
- pitem_free(item);
- }
-
- while ( (item = pqueue_pop(s->d1->buffered_app_data.q)) != NULL)
- {
- rdata = (DTLS1_RECORD_DATA *) item->data;
- if (rdata->rbuf.buf)
- {
- OPENSSL_free(rdata->rbuf.buf);
- }
- OPENSSL_free(item->data);
- pitem_free(item);
- }
- }
-
-void dtls1_free(SSL *s)
- {
- ssl3_free(s);
-
- dtls1_clear_queues(s);
-
- pqueue_free(s->d1->unprocessed_rcds.q);
- pqueue_free(s->d1->processed_rcds.q);
- pqueue_free(s->d1->buffered_messages);
- pqueue_free(s->d1->sent_messages);
- pqueue_free(s->d1->buffered_app_data.q);
-
- OPENSSL_free(s->d1);
- s->d1 = NULL;
- }
-
-void dtls1_clear(SSL *s)
- {
- pqueue unprocessed_rcds;
- pqueue processed_rcds;
- pqueue buffered_messages;
- pqueue sent_messages;
- pqueue buffered_app_data;
- unsigned int mtu;
-
- if (s->d1)
- {
- unprocessed_rcds = s->d1->unprocessed_rcds.q;
- processed_rcds = s->d1->processed_rcds.q;
- buffered_messages = s->d1->buffered_messages;
- sent_messages = s->d1->sent_messages;
- buffered_app_data = s->d1->buffered_app_data.q;
- mtu = s->d1->mtu;
-
- dtls1_clear_queues(s);
-
- memset(s->d1, 0, sizeof(*(s->d1)));
-
- if (s->server)
- {
- s->d1->cookie_len = sizeof(s->d1->cookie);
- }
-
- if (SSL_get_options(s) & SSL_OP_NO_QUERY_MTU)
- {
- s->d1->mtu = mtu;
- }
-
- s->d1->unprocessed_rcds.q = unprocessed_rcds;
- s->d1->processed_rcds.q = processed_rcds;
- s->d1->buffered_messages = buffered_messages;
- s->d1->sent_messages = sent_messages;
- s->d1->buffered_app_data.q = buffered_app_data;
- }
-
- ssl3_clear(s);
- if (s->options & SSL_OP_CISCO_ANYCONNECT)
- s->version=DTLS1_BAD_VER;
- else
- s->version=DTLS1_VERSION;
- }
-
-long dtls1_ctrl(SSL *s, int cmd, long larg, void *parg)
- {
- int ret=0;
-
- switch (cmd)
- {
- case DTLS_CTRL_GET_TIMEOUT:
- if (dtls1_get_timeout(s, (struct timeval*) parg) != NULL)
- {
- ret = 1;
- }
- break;
- case DTLS_CTRL_HANDLE_TIMEOUT:
- ret = dtls1_handle_timeout(s);
- break;
- case DTLS_CTRL_LISTEN:
- ret = dtls1_listen(s, parg);
- break;
- case SSL_CTRL_CHECK_PROTO_VERSION:
- /* For library-internal use; checks that the current protocol
- * is the highest enabled version (according to s->ctx->method,
- * as version negotiation may have changed s->method). */
-#if DTLS_MAX_VERSION != DTLS1_VERSION
-# error Code needs update for DTLS_method() support beyond DTLS1_VERSION.
-#endif
- /* Just one protocol version is supported so far;
- * fail closed if the version is not as expected. */
- return s->version == DTLS_MAX_VERSION;
-
- default:
- ret = ssl3_ctrl(s, cmd, larg, parg);
- break;
- }
- return(ret);
- }
-
-/*
- * As it's impossible to use stream ciphers in "datagram" mode, this
- * simple filter is designed to disengage them in DTLS. Unfortunately
- * there is no universal way to identify stream SSL_CIPHER, so we have
- * to explicitly list their SSL_* codes. Currently RC4 is the only one
- * available, but if new ones emerge, they will have to be added...
- */
-const SSL_CIPHER *dtls1_get_cipher(unsigned int u)
- {
- const SSL_CIPHER *ciph = ssl3_get_cipher(u);
-
- if (ciph != NULL)
- {
- if (ciph->algorithm_enc == SSL_RC4)
- return NULL;
- }
-
- return ciph;
- }
-
-void dtls1_start_timer(SSL *s)
- {
-#ifndef OPENSSL_NO_SCTP
- /* Disable timer for SCTP */
- if (BIO_dgram_is_sctp(SSL_get_wbio(s)))
- {
- memset(&(s->d1->next_timeout), 0, sizeof(struct timeval));
- return;
- }
-#endif
-
- /* If timer is not set, initialize duration with 1 second */
- if (s->d1->next_timeout.tv_sec == 0 && s->d1->next_timeout.tv_usec == 0)
- {
- s->d1->timeout_duration = 1;
- }
-
- /* Set timeout to current time */
- get_current_time(&(s->d1->next_timeout));
-
- /* Add duration to current time */
- s->d1->next_timeout.tv_sec += s->d1->timeout_duration;
- BIO_ctrl(SSL_get_rbio(s), BIO_CTRL_DGRAM_SET_NEXT_TIMEOUT, 0, &(s->d1->next_timeout));
- }
-
-struct timeval* dtls1_get_timeout(SSL *s, struct timeval* timeleft)
- {
- struct timeval timenow;
-
- /* If no timeout is set, just return NULL */
- if (s->d1->next_timeout.tv_sec == 0 && s->d1->next_timeout.tv_usec == 0)
- {
- return NULL;
- }
-
- /* Get current time */
- get_current_time(&timenow);
-
- /* If timer already expired, set remaining time to 0 */
- if (s->d1->next_timeout.tv_sec < timenow.tv_sec ||
- (s->d1->next_timeout.tv_sec == timenow.tv_sec &&
- s->d1->next_timeout.tv_usec <= timenow.tv_usec))
- {
- memset(timeleft, 0, sizeof(struct timeval));
- return timeleft;
- }
-
- /* Calculate time left until timer expires */
- memcpy(timeleft, &(s->d1->next_timeout), sizeof(struct timeval));
- timeleft->tv_sec -= timenow.tv_sec;
- timeleft->tv_usec -= timenow.tv_usec;
- if (timeleft->tv_usec < 0)
- {
- timeleft->tv_sec--;
- timeleft->tv_usec += 1000000;
- }
-
- /* If remaining time is less than 15 ms, set it to 0
- * to prevent issues because of small devergences with
- * socket timeouts.
- */
- if (timeleft->tv_sec == 0 && timeleft->tv_usec < 15000)
- {
- memset(timeleft, 0, sizeof(struct timeval));
- }
-
-
- return timeleft;
- }
-
-int dtls1_is_timer_expired(SSL *s)
- {
- struct timeval timeleft;
-
- /* Get time left until timeout, return false if no timer running */
- if (dtls1_get_timeout(s, &timeleft) == NULL)
- {
- return 0;
- }
-
- /* Return false if timer is not expired yet */
- if (timeleft.tv_sec > 0 || timeleft.tv_usec > 0)
- {
- return 0;
- }
-
- /* Timer expired, so return true */
- return 1;
- }
-
-void dtls1_double_timeout(SSL *s)
- {
- s->d1->timeout_duration *= 2;
- if (s->d1->timeout_duration > 60)
- s->d1->timeout_duration = 60;
- dtls1_start_timer(s);
- }
-
-void dtls1_stop_timer(SSL *s)
- {
- /* Reset everything */
- memset(&(s->d1->timeout), 0, sizeof(struct dtls1_timeout_st));
- memset(&(s->d1->next_timeout), 0, sizeof(struct timeval));
- s->d1->timeout_duration = 1;
- BIO_ctrl(SSL_get_rbio(s), BIO_CTRL_DGRAM_SET_NEXT_TIMEOUT, 0, &(s->d1->next_timeout));
- /* Clear retransmission buffer */
- dtls1_clear_record_buffer(s);
- }
-
-int dtls1_check_timeout_num(SSL *s)
- {
- s->d1->timeout.num_alerts++;
-
- /* Reduce MTU after 2 unsuccessful retransmissions */
- if (s->d1->timeout.num_alerts > 2)
- {
- s->d1->mtu = BIO_ctrl(SSL_get_wbio(s), BIO_CTRL_DGRAM_GET_FALLBACK_MTU, 0, NULL);
- }
-
- if (s->d1->timeout.num_alerts > DTLS1_TMO_ALERT_COUNT)
- {
- /* fail the connection, enough alerts have been sent */
- SSLerr(SSL_F_DTLS1_CHECK_TIMEOUT_NUM,SSL_R_READ_TIMEOUT_EXPIRED);
- return -1;
- }
-
- return 0;
- }
-
-int dtls1_handle_timeout(SSL *s)
- {
- /* if no timer is expired, don't do anything */
- if (!dtls1_is_timer_expired(s))
- {
- return 0;
- }
-
- dtls1_double_timeout(s);
-
- if (dtls1_check_timeout_num(s) < 0)
- return -1;
-
- s->d1->timeout.read_timeouts++;
- if (s->d1->timeout.read_timeouts > DTLS1_TMO_READ_COUNT)
- {
- s->d1->timeout.read_timeouts = 1;
- }
-
-#ifndef OPENSSL_NO_HEARTBEATS
- if (s->tlsext_hb_pending)
- {
- s->tlsext_hb_pending = 0;
- return dtls1_heartbeat(s);
- }
-#endif
-
- dtls1_start_timer(s);
- return dtls1_retransmit_buffered_messages(s);
- }
-
-static void get_current_time(struct timeval *t)
-{
-#ifdef OPENSSL_SYS_WIN32
- struct _timeb tb;
- _ftime(&tb);
- t->tv_sec = (long)tb.time;
- t->tv_usec = (long)tb.millitm * 1000;
-#elif defined(OPENSSL_SYS_VMS)
- struct timeb tb;
- ftime(&tb);
- t->tv_sec = (long)tb.time;
- t->tv_usec = (long)tb.millitm * 1000;
-#else
- gettimeofday(t, NULL);
-#endif
-}
-
-int dtls1_listen(SSL *s, struct sockaddr *client)
- {
- int ret;
-
- SSL_set_options(s, SSL_OP_COOKIE_EXCHANGE);
- s->d1->listen = 1;
-
- ret = SSL_accept(s);
- if (ret <= 0) return ret;
-
- (void) BIO_dgram_get_peer(SSL_get_rbio(s), client);
- return 1;
- }
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