mirror of
https://github.com/openssl/openssl.git
synced 2024-11-27 05:21:51 +08:00
349807608f
This was done by the following
find . -name '*.[ch]' | /tmp/pl
where /tmp/pl is the following three-line script:
print unless $. == 1 && m@/\* .*\.[ch] \*/@;
close ARGV if eof; # Close file to reset $.
And then some hand-editing of other files.
Reviewed-by: Viktor Dukhovni <viktor@openssl.org>
201 lines
8.1 KiB
C
201 lines
8.1 KiB
C
/*
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* DTLS implementation written by Nagendra Modadugu
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* (nagendra@cs.stanford.edu) for the OpenSSL project 2005.
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*/
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/* ====================================================================
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* Copyright (c) 1998-2015 The OpenSSL Project. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* 3. All advertising materials mentioning features or use of this
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* software must display the following acknowledgment:
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* "This product includes software developed by the OpenSSL Project
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* for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
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*
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* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
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* endorse or promote products derived from this software without
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* prior written permission. For written permission, please contact
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* openssl-core@openssl.org.
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*
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* 5. Products derived from this software may not be called "OpenSSL"
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* nor may "OpenSSL" appear in their names without prior written
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* permission of the OpenSSL Project.
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*
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* 6. Redistributions of any form whatsoever must retain the following
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* acknowledgment:
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* "This product includes software developed by the OpenSSL Project
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* for use in the OpenSSL Toolkit (http://www.openssl.org/)"
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*
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* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
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* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
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* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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* OF THE POSSIBILITY OF SUCH DAMAGE.
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* ====================================================================
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*
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* This product includes cryptographic software written by Eric Young
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* (eay@cryptsoft.com). This product includes software written by Tim
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* Hudson (tjh@cryptsoft.com).
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*
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*/
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/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
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* All rights reserved.
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*
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* This package is an SSL implementation written
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* by Eric Young (eay@cryptsoft.com).
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* The implementation was written so as to conform with Netscapes SSL.
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*
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* This library is free for commercial and non-commercial use as long as
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* the following conditions are aheared to. The following conditions
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* apply to all code found in this distribution, be it the RC4, RSA,
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* lhash, DES, etc., code; not just the SSL code. The SSL documentation
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* included with this distribution is covered by the same copyright terms
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* except that the holder is Tim Hudson (tjh@cryptsoft.com).
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*
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* Copyright remains Eric Young's, and as such any Copyright notices in
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* the code are not to be removed.
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* If this package is used in a product, Eric Young should be given attribution
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* as the author of the parts of the library used.
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* This can be in the form of a textual message at program startup or
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* in documentation (online or textual) provided with the package.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* "This product includes cryptographic software written by
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* Eric Young (eay@cryptsoft.com)"
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* The word 'cryptographic' can be left out if the rouines from the library
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* being used are not cryptographic related :-).
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* 4. If you include any Windows specific code (or a derivative thereof) from
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* the apps directory (application code) you must include an acknowledgement:
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* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
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*
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* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* The licence and distribution terms for any publically available version or
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* derivative of this code cannot be changed. i.e. this code cannot simply be
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* copied and put under another distribution licence
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* [including the GNU Public Licence.]
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*/
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#define USE_SOCKETS
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#include "ssl_locl.h"
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int dtls1_write_app_data_bytes(SSL *s, int type, const void *buf_, int len)
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{
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int i;
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#ifndef OPENSSL_NO_SCTP
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/*
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* Check if we have to continue an interrupted handshake for reading
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* belated app data with SCTP.
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*/
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if ((SSL_in_init(s) && !ossl_statem_get_in_handshake(s)) ||
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(BIO_dgram_is_sctp(SSL_get_wbio(s)) &&
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ossl_statem_in_sctp_read_sock(s)))
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#else
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if (SSL_in_init(s) && !ossl_statem_get_in_handshake(s))
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#endif
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{
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i = s->handshake_func(s);
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if (i < 0)
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return (i);
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if (i == 0) {
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SSLerr(SSL_F_DTLS1_WRITE_APP_DATA_BYTES,
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SSL_R_SSL_HANDSHAKE_FAILURE);
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return -1;
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}
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}
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if (len > SSL3_RT_MAX_PLAIN_LENGTH) {
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SSLerr(SSL_F_DTLS1_WRITE_APP_DATA_BYTES, SSL_R_DTLS_MESSAGE_TOO_BIG);
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return -1;
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}
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i = dtls1_write_bytes(s, type, buf_, len);
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return i;
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}
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int dtls1_dispatch_alert(SSL *s)
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{
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int i, j;
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void (*cb) (const SSL *ssl, int type, int val) = NULL;
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unsigned char buf[DTLS1_AL_HEADER_LENGTH];
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unsigned char *ptr = &buf[0];
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s->s3->alert_dispatch = 0;
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memset(buf, 0, sizeof(buf));
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*ptr++ = s->s3->send_alert[0];
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*ptr++ = s->s3->send_alert[1];
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#ifdef DTLS1_AD_MISSING_HANDSHAKE_MESSAGE
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if (s->s3->send_alert[1] == DTLS1_AD_MISSING_HANDSHAKE_MESSAGE) {
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s2n(s->d1->handshake_read_seq, ptr);
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l2n3(s->d1->r_msg_hdr.frag_off, ptr);
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}
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#endif
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i = do_dtls1_write(s, SSL3_RT_ALERT, &buf[0], sizeof(buf), 0);
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if (i <= 0) {
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s->s3->alert_dispatch = 1;
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/* fprintf( stderr, "not done with alert\n" ); */
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} else {
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if (s->s3->send_alert[0] == SSL3_AL_FATAL
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#ifdef DTLS1_AD_MISSING_HANDSHAKE_MESSAGE
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|| s->s3->send_alert[1] == DTLS1_AD_MISSING_HANDSHAKE_MESSAGE
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#endif
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)
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(void)BIO_flush(s->wbio);
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if (s->msg_callback)
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s->msg_callback(1, s->version, SSL3_RT_ALERT, s->s3->send_alert,
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2, s, s->msg_callback_arg);
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if (s->info_callback != NULL)
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cb = s->info_callback;
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else if (s->ctx->info_callback != NULL)
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cb = s->ctx->info_callback;
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if (cb != NULL) {
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j = (s->s3->send_alert[0] << 8) | s->s3->send_alert[1];
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cb(s, SSL_CB_WRITE_ALERT, j);
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}
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}
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return (i);
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}
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