2 * Copyright 2005-2016 The OpenSSL Project Authors. All Rights Reserved.
4 * Licensed under the OpenSSL license (the "License"). You may not use
5 * this file except in compliance with the License. You can obtain a copy
6 * in the file LICENSE in the source distribution or at
7 * https://www.openssl.org/source/license.html
13 int dtls1_write_app_data_bytes(SSL *s, int type, const void *buf_, int len)
17 #ifndef OPENSSL_NO_SCTP
19 * Check if we have to continue an interrupted handshake for reading
20 * belated app data with SCTP.
22 if ((SSL_in_init(s) && !ossl_statem_get_in_handshake(s)) ||
23 (BIO_dgram_is_sctp(SSL_get_wbio(s)) &&
24 ossl_statem_in_sctp_read_sock(s)))
26 if (SSL_in_init(s) && !ossl_statem_get_in_handshake(s))
29 i = s->handshake_func(s);
33 SSLerr(SSL_F_DTLS1_WRITE_APP_DATA_BYTES,
34 SSL_R_SSL_HANDSHAKE_FAILURE);
39 if (len > SSL3_RT_MAX_PLAIN_LENGTH) {
40 SSLerr(SSL_F_DTLS1_WRITE_APP_DATA_BYTES, SSL_R_DTLS_MESSAGE_TOO_BIG);
44 i = dtls1_write_bytes(s, type, buf_, len);
48 int dtls1_dispatch_alert(SSL *s)
51 void (*cb) (const SSL *ssl, int type, int val) = NULL;
52 unsigned char buf[DTLS1_AL_HEADER_LENGTH];
53 unsigned char *ptr = &buf[0];
55 s->s3->alert_dispatch = 0;
57 memset(buf, 0, sizeof(buf));
58 *ptr++ = s->s3->send_alert[0];
59 *ptr++ = s->s3->send_alert[1];
61 #ifdef DTLS1_AD_MISSING_HANDSHAKE_MESSAGE
62 if (s->s3->send_alert[1] == DTLS1_AD_MISSING_HANDSHAKE_MESSAGE) {
63 s2n(s->d1->handshake_read_seq, ptr);
64 l2n3(s->d1->r_msg_hdr.frag_off, ptr);
68 i = do_dtls1_write(s, SSL3_RT_ALERT, &buf[0], sizeof(buf), 0);
70 s->s3->alert_dispatch = 1;
71 /* fprintf( stderr, "not done with alert\n" ); */
73 if (s->s3->send_alert[0] == SSL3_AL_FATAL
74 #ifdef DTLS1_AD_MISSING_HANDSHAKE_MESSAGE
75 || s->s3->send_alert[1] == DTLS1_AD_MISSING_HANDSHAKE_MESSAGE
78 (void)BIO_flush(s->wbio);
81 s->msg_callback(1, s->version, SSL3_RT_ALERT, s->s3->send_alert,
82 2, s, s->msg_callback_arg);
84 if (s->info_callback != NULL)
85 cb = s->info_callback;
86 else if (s->ctx->info_callback != NULL)
87 cb = s->ctx->info_callback;
90 j = (s->s3->send_alert[0] << 8) | s->s3->send_alert[1];
91 cb(s, SSL_CB_WRITE_ALERT, j);