* are met:
*
* 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
+ * 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.
+ * 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/)"
+ * 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.
+ * 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.
+ * 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/)"
+ * 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
* 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.
+ * 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.
+ * 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 :-).
+ * 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)"
+ * 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
unsigned long frag_len);
static int dtls1_retransmit_buffered_messages(SSL *s);
static long dtls1_get_message_fragment(SSL *s, int st1, int stn,
- long max, int *ok);
+ long max, int *ok);
static void dtls1_process_handshake_fragment(SSL *s, int frag_len);
static hm_fragment *
dtls1_hm_fragment_new(unsigned long frag_len)
- {
- hm_fragment *frag = NULL;
- unsigned char *buf = NULL;
-
- frag = (hm_fragment *)OPENSSL_malloc(sizeof(hm_fragment));
- if ( frag == NULL)
- return NULL;
-
- buf = (unsigned char *)OPENSSL_malloc(frag_len
- + DTLS1_HM_HEADER_LENGTH);
- if ( buf == NULL)
- {
- OPENSSL_free(frag);
- return NULL;
- }
-
- frag->fragment = buf;
-
- return frag;
- }
+ {
+ hm_fragment *frag = NULL;
+ unsigned char *buf = NULL;
+
+ frag = (hm_fragment *)OPENSSL_malloc(sizeof(hm_fragment));
+ if ( frag == NULL)
+ return NULL;
+
+ buf = (unsigned char *)OPENSSL_malloc(frag_len
+ + DTLS1_HM_HEADER_LENGTH);
+ if ( buf == NULL)
+ {
+ OPENSSL_free(frag);
+ return NULL;
+ }
+
+ frag->fragment = buf;
+
+ return frag;
+ }
static void
dtls1_hm_fragment_free(hm_fragment *frag)
- {
- OPENSSL_free(frag->fragment);
- OPENSSL_free(frag);
- }
+ {
+ OPENSSL_free(frag->fragment);
+ OPENSSL_free(frag);
+ }
/* send s->init_buf in records of type 'type' (SSL3_RT_HANDSHAKE or SSL3_RT_CHANGE_CIPHER_SPEC) */
int dtls1_do_write(SSL *s, int type)
/* AHA! Figure out the MTU, and stick to the right size */
if ( ! (SSL_get_options(s) & SSL_OP_NO_QUERY_MTU))
- {
+ {
s->d1->mtu =
BIO_ctrl(SSL_get_wbio(s), BIO_CTRL_DGRAM_QUERY_MTU, 0, NULL);
mtu = curr_mtu;
else if ( ( ret = BIO_flush(SSL_get_wbio(s))) <= 0)
return ret;
-
+
if ( BIO_wpending(SSL_get_wbio(s)) + s->init_num >= mtu)
{
ret = BIO_flush(SSL_get_wbio(s));
if ( s->init_off == 0 && type == SSL3_RT_HANDSHAKE)
OPENSSL_assert(s->init_num ==
- s->d1->w_msg_hdr.msg_len + DTLS1_HM_HEADER_LENGTH);
+ (int)s->d1->w_msg_hdr.msg_len + DTLS1_HM_HEADER_LENGTH);
frag_off = 0;
while( s->init_num)
s->init_off -= DTLS1_HM_HEADER_LENGTH;
s->init_num += DTLS1_HM_HEADER_LENGTH;
- /* write atleast DTLS1_HM_HEADER_LENGTH bytes */
+ /* write atleast DTLS1_HM_HEADER_LENGTH bytes */
if ( len <= DTLS1_HM_HEADER_LENGTH)
len += DTLS1_HM_HEADER_LENGTH;
}
-
+
dtls1_fix_message_header(s, frag_off,
len - DTLS1_HM_HEADER_LENGTH);
- dtls1_write_message_header(s, &s->init_buf->data[s->init_off]);
+ dtls1_write_message_header(s, (unsigned char *)&s->init_buf->data[s->init_off]);
OPENSSL_assert(len >= DTLS1_HM_HEADER_LENGTH);
}
}
else
{
-
+
/* bad if this assert fails, only part of the handshake
* message got sent. but why would this happen? */
- OPENSSL_assert(len == ret);
-
+ OPENSSL_assert(len == (unsigned int)ret);
+
if (type == SSL3_RT_HANDSHAKE && ! s->d1->retransmitting)
/* should not be done for 'Hello Request's, but in that case
* we'll ignore the result anyway */
* Read an entire handshake message. Handshake messages arrive in
* fragments.
*/
-long dtls1_get_message(SSL *s, int st1, int stn, int mt, long max,
- int *ok)
+long dtls1_get_message(SSL *s, int st1, int stn, int mt, long max, int *ok)
{
int i, al;
if ((mt >= 0) && (s->s3->tmp.message_type != mt))
{
al=SSL_AD_UNEXPECTED_MESSAGE;
- SSLerr(SSL_F_SSL3_GET_MESSAGE,SSL_R_UNEXPECTED_MESSAGE);
+ SSLerr(SSL_F_DTLS1_GET_MESSAGE,SSL_R_UNEXPECTED_MESSAGE);
goto f_err;
}
*ok=1;
s->init_num = (int)s->s3->tmp.message_size;
return s->init_num;
}
-
+
do
{
if ( s->d1->r_msg_hdr.frag_off == 0)
i = dtls1_get_message_fragment(s, st1, stn, max, ok);
if ( i == DTLS1_HM_BAD_FRAGMENT ||
- i == DTLS1_HM_FRAGMENT_RETRY) /* bad fragment received */
+ i == DTLS1_HM_FRAGMENT_RETRY) /* bad fragment received */
continue;
else if ( i <= 0 && !*ok)
return i;
- if (s->d1->r_msg_hdr.msg_len == s->init_num - DTLS1_HM_HEADER_LENGTH)
+ if (s->d1->r_msg_hdr.msg_len == (unsigned int)s->init_num - DTLS1_HM_HEADER_LENGTH)
{
memset(&(s->d1->r_msg_hdr), 0x00, sizeof(struct hm_header_st));
* first data segment, but is there a better way? */
dtls1_clear_record_buffer(s);
- s->init_msg = s->init_buf->data + DTLS1_HM_HEADER_LENGTH;
+ s->init_msg = s->init_buf->data + DTLS1_HM_HEADER_LENGTH;
return s->init_num - DTLS1_HM_HEADER_LENGTH;
}
else
static int
dtls1_retrieve_buffered_fragment(SSL *s, unsigned long *copied)
- {
- /* (0) check whether the desired fragment is available
- * if so:
- * (1) copy over the fragment to s->init_buf->data[]
- * (2) update s->init_num
- */
- pitem *item;
- hm_fragment *frag;
- unsigned long overlap;
- unsigned char *p;
-
- item = pqueue_peek(s->d1->buffered_messages);
- if ( item == NULL)
- return 0;
-
- frag = (hm_fragment *)item->data;
-
- if ( s->d1->handshake_read_seq == frag->msg_header.seq &&
- frag->msg_header.frag_off <= s->init_num - DTLS1_HM_HEADER_LENGTH)
- {
- pqueue_pop(s->d1->buffered_messages);
- overlap = s->init_num - DTLS1_HM_HEADER_LENGTH
- - frag->msg_header.frag_off;
-
- p = frag->fragment;
-
- memcpy(&s->init_buf->data[s->init_num],
- p + DTLS1_HM_HEADER_LENGTH + overlap,
- frag->msg_header.frag_len - overlap);
-
- OPENSSL_free(frag->fragment);
- OPENSSL_free(frag);
- pitem_free(item);
-
- *copied = frag->msg_header.frag_len - overlap;
- return *copied;
- }
- else
- return 0;
- }
+ {
+ /* (0) check whether the desired fragment is available
+ * if so:
+ * (1) copy over the fragment to s->init_buf->data[]
+ * (2) update s->init_num
+ */
+ pitem *item;
+ hm_fragment *frag;
+ unsigned long overlap;
+ unsigned char *p;
+
+ item = pqueue_peek(s->d1->buffered_messages);
+ if ( item == NULL)
+ return 0;
+
+ frag = (hm_fragment *)item->data;
+
+ if ( s->d1->handshake_read_seq == frag->msg_header.seq &&
+ frag->msg_header.frag_off <= (unsigned int)s->init_num - DTLS1_HM_HEADER_LENGTH)
+ {
+ pqueue_pop(s->d1->buffered_messages);
+ overlap = s->init_num - DTLS1_HM_HEADER_LENGTH
+ - frag->msg_header.frag_off;
+
+ p = frag->fragment;
+
+ memcpy(&s->init_buf->data[s->init_num],
+ p + DTLS1_HM_HEADER_LENGTH + overlap,
+ frag->msg_header.frag_len - overlap);
+
+ OPENSSL_free(frag->fragment);
+ OPENSSL_free(frag);
+ pitem_free(item);
+
+ *copied = frag->msg_header.frag_len - overlap;
+ return *copied;
+ }
+ else
+ return 0;
+ }
static int
dtls1_buffer_handshake_fragment(SSL *s, struct hm_header_st* msg_hdr)
{
- hm_fragment *frag = NULL;
- pitem *item = NULL;
+ hm_fragment *frag = NULL;
+ pitem *item = NULL;
+ unsigned char seq64be[8];
- frag = dtls1_hm_fragment_new(msg_hdr->frag_len);
- if ( frag == NULL)
- goto err;
+ frag = dtls1_hm_fragment_new(msg_hdr->frag_len);
+ if ( frag == NULL)
+ goto err;
- memcpy(frag->fragment, &(s->init_buf->data[s->init_num]),
- msg_hdr->frag_len + DTLS1_HM_HEADER_LENGTH);
+ memcpy(frag->fragment, &(s->init_buf->data[s->init_num]),
+ msg_hdr->frag_len + DTLS1_HM_HEADER_LENGTH);
- memcpy(&(frag->msg_header), msg_hdr, sizeof(*msg_hdr));
+ memcpy(&(frag->msg_header), msg_hdr, sizeof(*msg_hdr));
- item = pitem_new(msg_hdr->seq, frag);
- if ( item == NULL)
- goto err;
+ memset(seq64be,0,sizeof(seq64be));
+ seq64be[6] = (unsigned char)(msg_hdr->seq>>8);
+ seq64be[7] = (unsigned char)(msg_hdr->seq);
- pqueue_insert(s->d1->buffered_messages, item);
- return 1;
+ item = pitem_new(seq64be, frag);
+ if ( item == NULL)
+ goto err;
+
+ pqueue_insert(s->d1->buffered_messages, item);
+ return 1;
err:
- if ( frag != NULL) dtls1_hm_fragment_free(frag);
- if ( item != NULL) OPENSSL_free(item);
- return 0;
+ if ( frag != NULL) dtls1_hm_fragment_free(frag);
+ if ( item != NULL) OPENSSL_free(item);
+ return 0;
}
static void
dtls1_process_handshake_fragment(SSL *s, int frag_len)
- {
- unsigned char *p;
+ {
+ unsigned char *p;
- p = s->init_buf->data;
+ p = (unsigned char *)s->init_buf->data;
ssl3_finish_mac(s, &p[s->init_num - frag_len], frag_len);
- }
+ }
static int
dtls1_process_out_of_seq_message(SSL *s, struct hm_header_st *msg_hdr, int *ok)
- {
- int i;
- unsigned char *p;
-
- /* make sure there's enough room to read this fragment */
- if ( (int)msg_hdr->frag_len && !BUF_MEM_grow_clean(s->init_buf,
- (int)msg_hdr->frag_len + DTLS1_HM_HEADER_LENGTH + s->init_num))
- {
- SSLerr(SSL_F_SSL3_GET_MESSAGE,ERR_R_BUF_LIB);
- goto err;
- }
-
- p = s->init_buf->data;
-
- /* read the body of the fragment (header has already been read */
- if ( msg_hdr->frag_len > 0)
+ {
+ int i;
+ unsigned char *p;
+
+ /* make sure there's enough room to read this fragment */
+ if ( (int)msg_hdr->frag_len && !BUF_MEM_grow_clean(s->init_buf,
+ (int)msg_hdr->frag_len + DTLS1_HM_HEADER_LENGTH + s->init_num))
+ {
+ SSLerr(SSL_F_DTLS1_PROCESS_OUT_OF_SEQ_MESSAGE,ERR_R_BUF_LIB);
+ goto err;
+ }
+
+ p = (unsigned char *)s->init_buf->data;
+
+ /* read the body of the fragment (header has already been read */
+ if ( msg_hdr->frag_len > 0)
{
i=s->method->ssl_read_bytes(s,SSL3_RT_HANDSHAKE,
- &p[s->init_num],
- msg_hdr->frag_len,0);
+ &p[s->init_num],
+ msg_hdr->frag_len,0);
if (i <= 0)
{
*ok = 0;
}
}
- if ( msg_hdr->seq > s->d1->handshake_read_seq)
- dtls1_buffer_handshake_fragment(s, msg_hdr);
- else
- OPENSSL_assert(msg_hdr->seq < s->d1->handshake_read_seq);
+ if ( msg_hdr->seq > s->d1->handshake_read_seq)
+ dtls1_buffer_handshake_fragment(s, msg_hdr);
+ else
+ OPENSSL_assert(msg_hdr->seq < s->d1->handshake_read_seq);
- return DTLS1_HM_FRAGMENT_RETRY;
+ return DTLS1_HM_FRAGMENT_RETRY;
err:
- *ok = 0;
- return -1;
- }
+ *ok = 0;
+ return -1;
+ }
-static long
+static long
dtls1_get_message_fragment(SSL *s, int st1, int stn, long max, int *ok)
{
unsigned char *p;
unsigned long l, frag_off, frag_len;
int i,al;
struct hm_header_st msg_hdr;
- unsigned long overlap;
-
- /* see if we have the required fragment already */
- if (dtls1_retrieve_buffered_fragment(s, &l))
- {
- /* compute MAC, remove fragment headers */
- dtls1_process_handshake_fragment(s, l);
- s->init_msg = s->init_buf->data + DTLS1_HM_HEADER_LENGTH;
- s->state = stn;
- return 1;
- }
-
- /* get a handshake fragment from the record layer */
+ unsigned long overlap;
+
+ /* see if we have the required fragment already */
+ if (dtls1_retrieve_buffered_fragment(s, &l))
+ {
+ /* compute MAC, remove fragment headers */
+ dtls1_process_handshake_fragment(s, l);
+ s->init_msg = s->init_buf->data + DTLS1_HM_HEADER_LENGTH;
+ s->state = stn;
+ return 1;
+ }
+
+ /* get a handshake fragment from the record layer */
p = (unsigned char *)s->init_buf->data;
- /* read handshake message header */
+ /* read handshake message header */
i=s->method->ssl_read_bytes(s,SSL3_RT_HANDSHAKE,&p[s->init_num],
DTLS1_HM_HEADER_LENGTH, 0);
if (i <= 0) /* nbio, or an error */
OPENSSL_assert(i == DTLS1_HM_HEADER_LENGTH);
p += s->init_num;
- /* parse the message fragment header */
-
- dtls1_get_message_header(p, &msg_hdr);
-
- /*
- * if this is a future (or stale) message it gets buffered
- * (or dropped)--no further processing at this time
- */
- if ( msg_hdr.seq != s->d1->handshake_read_seq)
- return dtls1_process_out_of_seq_message(s, &msg_hdr, ok);
-
- l = msg_hdr.msg_len;
- frag_off = msg_hdr.frag_off;
+ /* parse the message fragment header */
+
+ dtls1_get_message_header(p, &msg_hdr);
+
+ /*
+ * if this is a future (or stale) message it gets buffered
+ * (or dropped)--no further processing at this time
+ */
+ if ( msg_hdr.seq != s->d1->handshake_read_seq)
+ return dtls1_process_out_of_seq_message(s, &msg_hdr, ok);
+
+ l = msg_hdr.msg_len;
+ frag_off = msg_hdr.frag_off;
frag_len = msg_hdr.frag_len;
- /* sanity checking */
- if ( frag_off + frag_len > l)
- {
- al=SSL_AD_ILLEGAL_PARAMETER;
- SSLerr(SSL_F_SSL3_GET_MESSAGE,SSL_R_EXCESSIVE_MESSAGE_SIZE);
- goto f_err;
- }
+ /* sanity checking */
+ if ( frag_off + frag_len > l)
+ {
+ al=SSL_AD_ILLEGAL_PARAMETER;
+ SSLerr(SSL_F_DTLS1_GET_MESSAGE_FRAGMENT,SSL_R_EXCESSIVE_MESSAGE_SIZE);
+ goto f_err;
+ }
if (!s->server && s->d1->r_msg_hdr.frag_off == 0 &&
- p[0] == SSL3_MT_HELLO_REQUEST)
- {
- /* The server may always send 'Hello Request' messages --
- * we are doing a handshake anyway now, so ignore them
- * if their format is correct. Does not count for
- * 'Finished' MAC. */
- if (p[1] == 0 && p[2] == 0 &&p[3] == 0)
- {
- if (s->msg_callback)
- s->msg_callback(0, s->version, SSL3_RT_HANDSHAKE,
- p, DTLS1_HM_HEADER_LENGTH, s,
- s->msg_callback_arg);
-
- s->init_num = 0;
- return dtls1_get_message_fragment(s, st1, stn,
- max, ok);
- }
- else /* Incorrectly formated Hello request */
- {
- al=SSL_AD_UNEXPECTED_MESSAGE;
- SSLerr(SSL_F_SSL3_GET_MESSAGE,SSL_R_UNEXPECTED_MESSAGE);
- goto f_err;
- }
- }
-
- /* XDTLS: do a sanity check on the fragment */
-
- s->init_num += i;
+ p[0] == SSL3_MT_HELLO_REQUEST)
+ {
+ /* The server may always send 'Hello Request' messages --
+ * we are doing a handshake anyway now, so ignore them
+ * if their format is correct. Does not count for
+ * 'Finished' MAC. */
+ if (p[1] == 0 && p[2] == 0 &&p[3] == 0)
+ {
+ if (s->msg_callback)
+ s->msg_callback(0, s->version, SSL3_RT_HANDSHAKE,
+ p, DTLS1_HM_HEADER_LENGTH, s,
+ s->msg_callback_arg);
+
+ s->init_num = 0;
+ return dtls1_get_message_fragment(s, st1, stn,
+ max, ok);
+ }
+ else /* Incorrectly formated Hello request */
+ {
+ al=SSL_AD_UNEXPECTED_MESSAGE;
+ SSLerr(SSL_F_DTLS1_GET_MESSAGE_FRAGMENT,SSL_R_UNEXPECTED_MESSAGE);
+ goto f_err;
+ }
+ }
+
+ /* XDTLS: do a sanity check on the fragment */
+
+ s->init_num += i;
if ( s->d1->r_msg_hdr.frag_off == 0) /* first fragment */
{
if (l > (INT_MAX-DTLS1_HM_HEADER_LENGTH))
{
al=SSL_AD_ILLEGAL_PARAMETER;
- SSLerr(SSL_F_SSL3_GET_MESSAGE,SSL_R_EXCESSIVE_MESSAGE_SIZE);
+ SSLerr(SSL_F_DTLS1_GET_MESSAGE_FRAGMENT,SSL_R_EXCESSIVE_MESSAGE_SIZE);
goto f_err;
}
if (l && !BUF_MEM_grow_clean(s->init_buf,(int)l
+ DTLS1_HM_HEADER_LENGTH))
{
- SSLerr(SSL_F_SSL3_GET_MESSAGE,ERR_R_BUF_LIB);
+ SSLerr(SSL_F_DTLS1_GET_MESSAGE_FRAGMENT,ERR_R_BUF_LIB);
goto err;
}
- /* Only do this test when we're reading the expected message.
- * Stale messages will be dropped and future messages will be buffered */
- if ( l > (unsigned long)max)
+ /* Only do this test when we're reading the expected message.
+ * Stale messages will be dropped and future messages will be buffered */
+ if ( l > (unsigned long)max)
{
al=SSL_AD_ILLEGAL_PARAMETER;
- SSLerr(SSL_F_SSL3_GET_MESSAGE,SSL_R_EXCESSIVE_MESSAGE_SIZE);
+ SSLerr(SSL_F_DTLS1_GET_MESSAGE_FRAGMENT,SSL_R_EXCESSIVE_MESSAGE_SIZE);
goto f_err;
}
s->s3->tmp.message_size=l;
}
- if ( frag_len > (unsigned long)max)
- {
- al=SSL_AD_ILLEGAL_PARAMETER;
- SSLerr(SSL_F_SSL3_GET_MESSAGE,SSL_R_EXCESSIVE_MESSAGE_SIZE);
- goto f_err;
- }
- if ( frag_len + s->init_num > (INT_MAX - DTLS1_HM_HEADER_LENGTH))
- {
- al=SSL_AD_ILLEGAL_PARAMETER;
- SSLerr(SSL_F_SSL3_GET_MESSAGE,SSL_R_EXCESSIVE_MESSAGE_SIZE);
- goto f_err;
- }
-
- if ( frag_len & !BUF_MEM_grow_clean(s->init_buf, (int)frag_len
- + DTLS1_HM_HEADER_LENGTH + s->init_num))
- {
- SSLerr(SSL_F_SSL3_GET_MESSAGE,ERR_R_BUF_LIB);
- goto err;
- }
+ if ( frag_len > (unsigned long)max)
+ {
+ al=SSL_AD_ILLEGAL_PARAMETER;
+ SSLerr(SSL_F_DTLS1_GET_MESSAGE_FRAGMENT,SSL_R_EXCESSIVE_MESSAGE_SIZE);
+ goto f_err;
+ }
+ if ( frag_len + s->init_num > (INT_MAX - DTLS1_HM_HEADER_LENGTH))
+ {
+ al=SSL_AD_ILLEGAL_PARAMETER;
+ SSLerr(SSL_F_DTLS1_GET_MESSAGE_FRAGMENT,SSL_R_EXCESSIVE_MESSAGE_SIZE);
+ goto f_err;
+ }
+
+ if ( frag_len & !BUF_MEM_grow_clean(s->init_buf, (int)frag_len
+ + DTLS1_HM_HEADER_LENGTH + s->init_num))
+ {
+ SSLerr(SSL_F_DTLS1_GET_MESSAGE_FRAGMENT,ERR_R_BUF_LIB);
+ goto err;
+ }
if ( s->d1->r_msg_hdr.frag_off == 0)
{
/* XDTLS: ressurect this when restart is in place */
s->state=stn;
-
+
/* next state (stn) */
- p = s->init_buf->data;
+ p = (unsigned char *)s->init_buf->data;
if ( frag_len > 0)
{
i=s->method->ssl_read_bytes(s,SSL3_RT_HANDSHAKE,
- &p[s->init_num],
- frag_len,0);
- /* XDTLS: fix this--message fragments cannot span multiple packets */
+ &p[s->init_num],
+ frag_len,0);
+ /* XDTLS: fix this--message fragments cannot span multiple packets */
if (i <= 0)
{
s->rwstate=SSL_READING;
else
i = 0;
- /* XDTLS: an incorrectly formatted fragment should cause the
- * handshake to fail */
- OPENSSL_assert(i == frag_len);
+ /* XDTLS: an incorrectly formatted fragment should cause the
+ * handshake to fail */
+ OPENSSL_assert(i == (int)frag_len);
#if 0
- /* Successfully read a fragment.
- * It may be (1) out of order, or
- * (2) it's a repeat, in which case we dump it
- * (3) the one we are expecting next (maybe with overlap)
- * If it is next one, it may overlap with previously read bytes
- */
-
- /* case (1): buffer the future fragment
- * (we can treat fragments from a future message the same
- * as future fragments from the message being currently read, since
- * they are sematically simply out of order.
- */
- if ( msg_hdr.seq > s->d1->handshake_read_seq ||
- frag_off > s->init_num - DTLS1_HM_HEADER_LENGTH)
- {
- dtls1_buffer_handshake_fragment(s, &msg_hdr);
- return DTLS1_HM_FRAGMENT_RETRY;
- }
-
- /* case (2): drop the entire fragment, and try again */
- if ( msg_hdr.seq < s->d1->handshake_read_seq ||
- frag_off + frag_len < s->init_num - DTLS1_HM_HEADER_LENGTH)
- {
- s->init_num -= DTLS1_HM_HEADER_LENGTH;
- return DTLS1_HM_FRAGMENT_RETRY;
- }
+ /* Successfully read a fragment.
+ * It may be (1) out of order, or
+ * (2) it's a repeat, in which case we dump it
+ * (3) the one we are expecting next (maybe with overlap)
+ * If it is next one, it may overlap with previously read bytes
+ */
+
+ /* case (1): buffer the future fragment
+ * (we can treat fragments from a future message the same
+ * as future fragments from the message being currently read, since
+ * they are sematically simply out of order.
+ */
+ if ( msg_hdr.seq > s->d1->handshake_read_seq ||
+ frag_off > s->init_num - DTLS1_HM_HEADER_LENGTH)
+ {
+ dtls1_buffer_handshake_fragment(s, &msg_hdr);
+ return DTLS1_HM_FRAGMENT_RETRY;
+ }
+
+ /* case (2): drop the entire fragment, and try again */
+ if ( msg_hdr.seq < s->d1->handshake_read_seq ||
+ frag_off + frag_len < s->init_num - DTLS1_HM_HEADER_LENGTH)
+ {
+ s->init_num -= DTLS1_HM_HEADER_LENGTH;
+ return DTLS1_HM_FRAGMENT_RETRY;
+ }
#endif
- /* case (3): received a immediately useful fragment. Determine the
- * possible overlap and copy the fragment.
- */
- overlap = (s->init_num - DTLS1_HM_HEADER_LENGTH) - frag_off;
-
- /* retain the header for the first fragment */
- if ( s->init_num > DTLS1_HM_HEADER_LENGTH)
- {
- memmove(&(s->init_buf->data[s->init_num]),
- &(s->init_buf->data[s->init_num + DTLS1_HM_HEADER_LENGTH + overlap]),
- frag_len - overlap);
-
- s->init_num += frag_len - overlap;
- }
- else
- s->init_num += frag_len;
-
- dtls1_process_handshake_fragment(s, frag_len - overlap);
+ /* case (3): received a immediately useful fragment. Determine the
+ * possible overlap and copy the fragment.
+ */
+ overlap = (s->init_num - DTLS1_HM_HEADER_LENGTH) - frag_off;
+
+ /* retain the header for the first fragment */
+ if ( s->init_num > DTLS1_HM_HEADER_LENGTH)
+ {
+ memmove(&(s->init_buf->data[s->init_num]),
+ &(s->init_buf->data[s->init_num + DTLS1_HM_HEADER_LENGTH + overlap]),
+ frag_len - overlap);
+
+ s->init_num += frag_len - overlap;
+ }
+ else
+ s->init_num += frag_len;
+
+ dtls1_process_handshake_fragment(s, frag_len - overlap);
if (s->msg_callback)
s->msg_callback(0, s->version, SSL3_RT_HANDSHAKE, s->init_buf->data,
f_err:
ssl3_send_alert(s,SSL3_AL_FATAL,al);
- s->init_num = 0;
+ s->init_num = 0;
err:
*ok=0;
return(-1);
p= &(d[DTLS1_HM_HEADER_LENGTH]);
i=s->method->ssl3_enc->final_finish_mac(s,
- &(s->s3->finish_dgst1),
- &(s->s3->finish_dgst2),
sender,slen,s->s3->tmp.finish_md);
s->s3->tmp.finish_md_len = i;
memcpy(p, s->s3->tmp.finish_md, i);
/* buffer the message to handle re-xmits */
dtls1_buffer_message(s, 0);
-
+
s->state=b;
}
*p++=SSL3_MT_CCS;
s->d1->handshake_write_seq = s->d1->next_handshake_write_seq;
s->d1->next_handshake_write_seq++;
- s2n(s->d1->handshake_write_seq,p);
s->init_num=DTLS1_CCS_HEADER_LENGTH;
s->init_off=0;
buf=s->init_buf;
if (!BUF_MEM_grow_clean(buf,10))
{
- SSLerr(SSL_F_SSL3_OUTPUT_CERT_CHAIN,ERR_R_BUF_LIB);
+ SSLerr(SSL_F_DTLS1_OUTPUT_CERT_CHAIN,ERR_R_BUF_LIB);
return(0);
}
if (x != NULL)
{
if(!X509_STORE_CTX_init(&xs_ctx,s->ctx->cert_store,NULL,NULL))
{
- SSLerr(SSL_F_SSL3_OUTPUT_CERT_CHAIN,ERR_R_X509_LIB);
+ SSLerr(SSL_F_DTLS1_OUTPUT_CERT_CHAIN,ERR_R_X509_LIB);
return(0);
}
n=i2d_X509(x,NULL);
if (!BUF_MEM_grow_clean(buf,(int)(n+l+3)))
{
- SSLerr(SSL_F_SSL3_OUTPUT_CERT_CHAIN,ERR_R_BUF_LIB);
+ SSLerr(SSL_F_DTLS1_OUTPUT_CERT_CHAIN,ERR_R_BUF_LIB);
return(0);
}
p=(unsigned char *)&(buf->data[l]);
n=i2d_X509(x,NULL);
if (!BUF_MEM_grow_clean(buf,(int)(n+l+3)))
{
- SSLerr(SSL_F_SSL3_OUTPUT_CERT_CHAIN,ERR_R_BUF_LIB);
+ SSLerr(SSL_F_DTLS1_OUTPUT_CERT_CHAIN,ERR_R_BUF_LIB);
return(0);
}
p=(unsigned char *)&(buf->data[l]);
}
int dtls1_read_failed(SSL *s, int code)
- {
- DTLS1_STATE *state;
- BIO *bio;
- int send_alert = 0;
-
- if ( code > 0)
- {
- fprintf( stderr, "invalid state reached %s:%d", __FILE__, __LINE__);
- return 1;
- }
-
- bio = SSL_get_rbio(s);
- if ( ! BIO_dgram_recv_timedout(bio))
- {
- /* not a timeout, none of our business,
- let higher layers handle this. in fact it's probably an error */
- return code;
- }
-
- if ( ! SSL_in_init(s)) /* done, no need to send a retransmit */
- {
- BIO_set_flags(SSL_get_rbio(s), BIO_FLAGS_READ);
- return code;
- }
-
- state = s->d1;
- state->timeout.num_alerts++;
- if ( state->timeout.num_alerts > DTLS1_TMO_ALERT_COUNT)
- {
- /* fail the connection, enough alerts have been sent */
- SSLerr(SSL_F_DTLS1_READ_FAILED,SSL_R_READ_TIMEOUT_EXPIRED);
- return 0;
- }
-
- state->timeout.read_timeouts++;
- if ( state->timeout.read_timeouts > DTLS1_TMO_READ_COUNT)
- {
- send_alert = 1;
- state->timeout.read_timeouts = 1;
- }
+ {
+ DTLS1_STATE *state;
+ BIO *bio;
+ int send_alert = 0;
+
+ if ( code > 0)
+ {
+ fprintf( stderr, "invalid state reached %s:%d", __FILE__, __LINE__);
+ return 1;
+ }
+
+ bio = SSL_get_rbio(s);
+ if ( ! BIO_dgram_recv_timedout(bio))
+ {
+ /* not a timeout, none of our business,
+ let higher layers handle this. in fact it's probably an error */
+ return code;
+ }
+
+ if ( ! SSL_in_init(s)) /* done, no need to send a retransmit */
+ {
+ BIO_set_flags(SSL_get_rbio(s), BIO_FLAGS_READ);
+ return code;
+ }
+
+ state = s->d1;
+ state->timeout.num_alerts++;
+ if ( state->timeout.num_alerts > DTLS1_TMO_ALERT_COUNT)
+ {
+ /* fail the connection, enough alerts have been sent */
+ SSLerr(SSL_F_DTLS1_READ_FAILED,SSL_R_READ_TIMEOUT_EXPIRED);
+ return 0;
+ }
+
+ state->timeout.read_timeouts++;
+ if ( state->timeout.read_timeouts > DTLS1_TMO_READ_COUNT)
+ {
+ send_alert = 1;
+ state->timeout.read_timeouts = 1;
+ }
+
-
#if 0 /* for now, each alert contains only one record number */
- item = pqueue_peek(state->rcvd_records);
- if ( item )
- {
- /* send an alert immediately for all the missing records */
- }
- else
+ item = pqueue_peek(state->rcvd_records);
+ if ( item )
+ {
+ /* send an alert immediately for all the missing records */
+ }
+ else
#endif
#if 0 /* no more alert sending, just retransmit the last set of messages */
- if ( send_alert)
- ssl3_send_alert(s,SSL3_AL_WARNING,
- DTLS1_AD_MISSING_HANDSHAKE_MESSAGE);
+ if ( send_alert)
+ ssl3_send_alert(s,SSL3_AL_WARNING,
+ DTLS1_AD_MISSING_HANDSHAKE_MESSAGE);
#endif
- return dtls1_retransmit_buffered_messages(s) ;
- }
+ return dtls1_retransmit_buffered_messages(s) ;
+ }
static int
dtls1_retransmit_buffered_messages(SSL *s)
- {
- pqueue sent = s->d1->sent_messages;
- piterator iter;
- pitem *item;
- hm_fragment *frag;
- int found = 0;
-
- iter = pqueue_iterator(sent);
-
- for ( item = pqueue_next(&iter); item != NULL; item = pqueue_next(&iter))
- {
- frag = (hm_fragment *)item->data;
- if ( dtls1_retransmit_message(s, frag->msg_header.seq, 0, &found) <= 0 &&
- found)
- {
- fprintf(stderr, "dtls1_retransmit_message() failed\n");
- return -1;
- }
- }
-
- return 1;
- }
+ {
+ pqueue sent = s->d1->sent_messages;
+ piterator iter;
+ pitem *item;
+ hm_fragment *frag;
+ int found = 0;
+
+ iter = pqueue_iterator(sent);
+
+ for ( item = pqueue_next(&iter); item != NULL; item = pqueue_next(&iter))
+ {
+ frag = (hm_fragment *)item->data;
+ if ( dtls1_retransmit_message(s, frag->msg_header.seq, 0, &found) <= 0 &&
+ found)
+ {
+ fprintf(stderr, "dtls1_retransmit_message() failed\n");
+ return -1;
+ }
+ }
+
+ return 1;
+ }
#if 0
static dtls1_message_buffer *
dtls1_message_buffer_new(unsigned int len)
- {
- dtls1_message_buffer *msg_buf;
-
- msg_buf = (dtls1_message_buffer *)
- OPENSSL_malloc(sizeof(dtls1_message_buffer));
- if ( msg_buf == NULL)
- return NULL;
-
- memset(msg_buf, 0x00, sizeof(dtls1_message_buffer));
-
- msg_buf->data = (unsigned char *) OPENSSL_malloc(len);
- if ( msg_buf->data == NULL)
- {
- OPENSSL_free(msg_buf);
- return NULL;
- }
-
- memset(msg_buf->data, 0x00, len);
- return msg_buf;
- }
+ {
+ dtls1_message_buffer *msg_buf;
+
+ msg_buf = (dtls1_message_buffer *)
+ OPENSSL_malloc(sizeof(dtls1_message_buffer));
+ if ( msg_buf == NULL)
+ return NULL;
+
+ memset(msg_buf, 0x00, sizeof(dtls1_message_buffer));
+
+ msg_buf->data = (unsigned char *) OPENSSL_malloc(len);
+ if ( msg_buf->data == NULL)
+ {
+ OPENSSL_free(msg_buf);
+ return NULL;
+ }
+
+ memset(msg_buf->data, 0x00, len);
+ return msg_buf;
+ }
#endif
#if 0
static void
dtls1_message_buffer_free(dtls1_message_buffer *msg_buf)
- {
- if (msg_buf != NULL)
- {
- OPENSSL_free(msg_buf->data);
- OPENSSL_free(msg_buf);
- }
- }
+ {
+ if (msg_buf != NULL)
+ {
+ OPENSSL_free(msg_buf->data);
+ OPENSSL_free(msg_buf);
+ }
+ }
#endif
int
dtls1_buffer_message(SSL *s, int is_ccs)
- {
- pitem *item;
- hm_fragment *frag;
-
- /* this function is called immediately after a message has
- * been serialized */
- OPENSSL_assert(s->init_off == 0);
-
- frag = dtls1_hm_fragment_new(s->init_num);
-
- memcpy(frag->fragment, s->init_buf->data, s->init_num);
-
- if ( is_ccs)
- {
- OPENSSL_assert(s->d1->w_msg_hdr.msg_len +
- DTLS1_CCS_HEADER_LENGTH == s->init_num);
- }
- else
- {
- OPENSSL_assert(s->d1->w_msg_hdr.msg_len +
- DTLS1_HM_HEADER_LENGTH == s->init_num);
- }
-
- frag->msg_header.msg_len = s->d1->w_msg_hdr.msg_len;
- frag->msg_header.seq = s->d1->w_msg_hdr.seq;
- frag->msg_header.type = s->d1->w_msg_hdr.type;
- frag->msg_header.frag_off = 0;
- frag->msg_header.frag_len = s->d1->w_msg_hdr.msg_len;
- frag->msg_header.is_ccs = is_ccs;
-
- item = pitem_new(frag->msg_header.seq, frag);
- if ( item == NULL)
- {
- dtls1_hm_fragment_free(frag);
- return 0;
- }
+ {
+ pitem *item;
+ hm_fragment *frag;
+ unsigned char seq64be[8];
+
+ /* this function is called immediately after a message has
+ * been serialized */
+ OPENSSL_assert(s->init_off == 0);
+
+ frag = dtls1_hm_fragment_new(s->init_num);
+
+ memcpy(frag->fragment, s->init_buf->data, s->init_num);
+
+ if ( is_ccs)
+ {
+ OPENSSL_assert(s->d1->w_msg_hdr.msg_len +
+ DTLS1_CCS_HEADER_LENGTH == (unsigned int)s->init_num);
+ }
+ else
+ {
+ OPENSSL_assert(s->d1->w_msg_hdr.msg_len +
+ DTLS1_HM_HEADER_LENGTH == (unsigned int)s->init_num);
+ }
+
+ frag->msg_header.msg_len = s->d1->w_msg_hdr.msg_len;
+ frag->msg_header.seq = s->d1->w_msg_hdr.seq;
+ frag->msg_header.type = s->d1->w_msg_hdr.type;
+ frag->msg_header.frag_off = 0;
+ frag->msg_header.frag_len = s->d1->w_msg_hdr.msg_len;
+ frag->msg_header.is_ccs = is_ccs;
+
+ memset(seq64be,0,sizeof(seq64be));
+ seq64be[6] = (unsigned char)(frag->msg_header.seq>>8);
+ seq64be[7] = (unsigned char)(frag->msg_header.seq);
+
+ item = pitem_new(seq64be, frag);
+ if ( item == NULL)
+ {
+ dtls1_hm_fragment_free(frag);
+ return 0;
+ }
#if 0
- fprintf( stderr, "buffered messge: \ttype = %xx\n", msg_buf->type);
- fprintf( stderr, "\t\t\t\t\tlen = %d\n", msg_buf->len);
- fprintf( stderr, "\t\t\t\t\tseq_num = %d\n", msg_buf->seq_num);
+ fprintf( stderr, "buffered messge: \ttype = %xx\n", msg_buf->type);
+ fprintf( stderr, "\t\t\t\t\tlen = %d\n", msg_buf->len);
+ fprintf( stderr, "\t\t\t\t\tseq_num = %d\n", msg_buf->seq_num);
#endif
- pqueue_insert(s->d1->sent_messages, item);
- return 1;
- }
+ pqueue_insert(s->d1->sent_messages, item);
+ return 1;
+ }
int
dtls1_retransmit_message(SSL *s, unsigned short seq, unsigned long frag_off,
- int *found)
- {
- int ret;
- /* XDTLS: for now assuming that read/writes are blocking */
- pitem *item;
- hm_fragment *frag ;
- unsigned long header_length;
-
- /*
- OPENSSL_assert(s->init_num == 0);
- OPENSSL_assert(s->init_off == 0);
- */
-
- /* XDTLS: the requested message ought to be found, otherwise error */
- item = pqueue_find(s->d1->sent_messages, seq);
- if ( item == NULL)
- {
- fprintf(stderr, "retransmit: message %d non-existant\n", seq);
- *found = 0;
- return 0;
- }
-
- *found = 1;
- frag = (hm_fragment *)item->data;
-
- if ( frag->msg_header.is_ccs)
- header_length = DTLS1_CCS_HEADER_LENGTH;
- else
- header_length = DTLS1_HM_HEADER_LENGTH;
-
- memcpy(s->init_buf->data, frag->fragment,
- frag->msg_header.msg_len + header_length);
- s->init_num = frag->msg_header.msg_len + header_length;
-
- dtls1_set_message_header_int(s, frag->msg_header.type,
- frag->msg_header.msg_len, frag->msg_header.seq, 0,
- frag->msg_header.frag_len);
-
- s->d1->retransmitting = 1;
- ret = dtls1_do_write(s, frag->msg_header.is_ccs ?
- SSL3_RT_CHANGE_CIPHER_SPEC : SSL3_RT_HANDSHAKE);
- s->d1->retransmitting = 0;
-
- BIO_flush(SSL_get_wbio(s));
- return ret;
- }
+ int *found)
+ {
+ int ret;
+ /* XDTLS: for now assuming that read/writes are blocking */
+ pitem *item;
+ hm_fragment *frag ;
+ unsigned long header_length;
+ unsigned char seq64be[8];
+
+ /*
+ OPENSSL_assert(s->init_num == 0);
+ OPENSSL_assert(s->init_off == 0);
+ */
+
+ /* XDTLS: the requested message ought to be found, otherwise error */
+ memset(seq64be,0,sizeof(seq64be));
+ seq64be[6] = (unsigned char)(seq>>8);
+ seq64be[7] = (unsigned char)seq;
+
+ item = pqueue_find(s->d1->sent_messages, seq64be);
+ if ( item == NULL)
+ {
+ fprintf(stderr, "retransmit: message %d non-existant\n", seq);
+ *found = 0;
+ return 0;
+ }
+
+ *found = 1;
+ frag = (hm_fragment *)item->data;
+
+ if ( frag->msg_header.is_ccs)
+ header_length = DTLS1_CCS_HEADER_LENGTH;
+ else
+ header_length = DTLS1_HM_HEADER_LENGTH;
+
+ memcpy(s->init_buf->data, frag->fragment,
+ frag->msg_header.msg_len + header_length);
+ s->init_num = frag->msg_header.msg_len + header_length;
+
+ dtls1_set_message_header_int(s, frag->msg_header.type,
+ frag->msg_header.msg_len, frag->msg_header.seq, 0,
+ frag->msg_header.frag_len);
+
+ s->d1->retransmitting = 1;
+ ret = dtls1_do_write(s, frag->msg_header.is_ccs ?
+ SSL3_RT_CHANGE_CIPHER_SPEC : SSL3_RT_HANDSHAKE);
+ s->d1->retransmitting = 0;
+
+ (void)BIO_flush(SSL_get_wbio(s));
+ return ret;
+ }
/* call this function when the buffered messages are no longer needed */
void
dtls1_clear_record_buffer(SSL *s)
- {
- pitem *item;
-
- for(item = pqueue_pop(s->d1->sent_messages);
- item != NULL; item = pqueue_pop(s->d1->sent_messages))
- {
- dtls1_hm_fragment_free((hm_fragment *)item->data);
- pitem_free(item);
- }
- }
+ {
+ pitem *item;
+
+ for(item = pqueue_pop(s->d1->sent_messages);
+ item != NULL; item = pqueue_pop(s->d1->sent_messages))
+ {
+ dtls1_hm_fragment_free((hm_fragment *)item->data);
+ pitem_free(item);
+ }
+ }
unsigned char *
dtls1_set_message_header(SSL *s, unsigned char *p, unsigned char mt,
- unsigned long len, unsigned long frag_off, unsigned long frag_len)
- {
- if ( frag_off == 0)
- {
- s->d1->handshake_write_seq = s->d1->next_handshake_write_seq;
- s->d1->next_handshake_write_seq++;
- }
-
- dtls1_set_message_header_int(s, mt, len, s->d1->handshake_write_seq,
- frag_off, frag_len);
-
- return p += DTLS1_HM_HEADER_LENGTH;
- }
+ unsigned long len, unsigned long frag_off, unsigned long frag_len)
+ {
+ if ( frag_off == 0)
+ {
+ s->d1->handshake_write_seq = s->d1->next_handshake_write_seq;
+ s->d1->next_handshake_write_seq++;
+ }
+
+ dtls1_set_message_header_int(s, mt, len, s->d1->handshake_write_seq,
+ frag_off, frag_len);
+
+ return p += DTLS1_HM_HEADER_LENGTH;
+ }
/* don't actually do the writing, wait till the MTU has been retrieved */
static void
dtls1_set_message_header_int(SSL *s, unsigned char mt,
- unsigned long len, unsigned short seq_num, unsigned long frag_off,
- unsigned long frag_len)
- {
- struct hm_header_st *msg_hdr = &s->d1->w_msg_hdr;
-
- msg_hdr->type = mt;
- msg_hdr->msg_len = len;
- msg_hdr->seq = seq_num;
- msg_hdr->frag_off = frag_off;
- msg_hdr->frag_len = frag_len;
-}
+ unsigned long len, unsigned short seq_num, unsigned long frag_off,
+ unsigned long frag_len)
+ {
+ struct hm_header_st *msg_hdr = &s->d1->w_msg_hdr;
+
+ msg_hdr->type = mt;
+ msg_hdr->msg_len = len;
+ msg_hdr->seq = seq_num;
+ msg_hdr->frag_off = frag_off;
+ msg_hdr->frag_len = frag_len;
+ }
static void
dtls1_fix_message_header(SSL *s, unsigned long frag_off,
- unsigned long frag_len)
- {
- struct hm_header_st *msg_hdr = &s->d1->w_msg_hdr;
-
- msg_hdr->frag_off = frag_off;
- msg_hdr->frag_len = frag_len;
- }
+ unsigned long frag_len)
+ {
+ struct hm_header_st *msg_hdr = &s->d1->w_msg_hdr;
+
+ msg_hdr->frag_off = frag_off;
+ msg_hdr->frag_len = frag_len;
+ }
static unsigned char *
dtls1_write_message_header(SSL *s, unsigned char *p)
- {
- struct hm_header_st *msg_hdr = &s->d1->w_msg_hdr;
-
- *p++ = msg_hdr->type;
- l2n3(msg_hdr->msg_len, p);
-
- s2n(msg_hdr->seq, p);
- l2n3(msg_hdr->frag_off, p);
- l2n3(msg_hdr->frag_len, p);
-
- return p;
- }
+ {
+ struct hm_header_st *msg_hdr = &s->d1->w_msg_hdr;
+
+ *p++ = msg_hdr->type;
+ l2n3(msg_hdr->msg_len, p);
+
+ s2n(msg_hdr->seq, p);
+ l2n3(msg_hdr->frag_off, p);
+ l2n3(msg_hdr->frag_len, p);
+
+ return p;
+ }
static unsigned int
dtls1_min_mtu(void)
- {
- return
- g_probable_mtu[(sizeof(g_probable_mtu) /
- sizeof(g_probable_mtu[0])) - 1];
- }
+ {
+ return (g_probable_mtu[(sizeof(g_probable_mtu) /
+ sizeof(g_probable_mtu[0])) - 1]);
+ }
static unsigned int
dtls1_guess_mtu(unsigned int curr_mtu)
{
- int i;
+ unsigned int i;
if ( curr_mtu == 0 )
return g_probable_mtu[0] ;
for ( i = 0; i < sizeof(g_probable_mtu)/sizeof(g_probable_mtu[0]); i++)
if ( curr_mtu > g_probable_mtu[i])
return g_probable_mtu[i];
-
+
return curr_mtu;
}
void
dtls1_get_message_header(unsigned char *data, struct hm_header_st *msg_hdr)
- {
- memset(msg_hdr, 0x00, sizeof(struct hm_header_st));
- msg_hdr->type = *(data++);
- n2l3(data, msg_hdr->msg_len);
-
- n2s(data, msg_hdr->seq);
- n2l3(data, msg_hdr->frag_off);
- n2l3(data, msg_hdr->frag_len);
- }
+ {
+ memset(msg_hdr, 0x00, sizeof(struct hm_header_st));
+ msg_hdr->type = *(data++);
+ n2l3(data, msg_hdr->msg_len);
+
+ n2s(data, msg_hdr->seq);
+ n2l3(data, msg_hdr->frag_off);
+ n2l3(data, msg_hdr->frag_len);
+ }
void
dtls1_get_ccs_header(unsigned char *data, struct ccs_header_st *ccs_hdr)
- {
- memset(ccs_hdr, 0x00, sizeof(struct ccs_header_st));
-
- ccs_hdr->type = *(data++);
- n2s(data, ccs_hdr->seq);
-}
+ {
+ memset(ccs_hdr, 0x00, sizeof(struct ccs_header_st));
+
+ ccs_hdr->type = *(data++);
+ }
projects / openssl.git / blobdiff