/* XDTLS: figure out the right values */
static unsigned int g_probable_mtu[] = {1500 - 28, 512 - 28, 256 - 28};
-static unsigned int dtls1_min_mtu(void);
static unsigned int dtls1_guess_mtu(unsigned int curr_mtu);
static void dtls1_fix_message_header(SSL *s, unsigned long frag_off,
unsigned long frag_len);
return ret;
mtu = s->d1->mtu - (DTLS1_HM_HEADER_LENGTH + DTLS1_RT_HEADER_LENGTH);
}
-
- OPENSSL_assert(mtu > 0); /* should have something reasonable now */
-
#endif
+ OPENSSL_assert(s->d1->mtu >= dtls1_min_mtu()); /* should have something reasonable now */
+
if ( s->init_off == 0 && type == SSL3_RT_HANDSHAKE)
OPENSSL_assert(s->init_num ==
(int)s->d1->w_msg_hdr.msg_len + DTLS1_HM_HEADER_LENGTH);
*ok = 0;
return i;
}
- OPENSSL_assert(i == DTLS1_HM_HEADER_LENGTH);
+ /* Handshake fails if message header is incomplete */
+ if (i != DTLS1_HM_HEADER_LENGTH)
+ {
+ al=SSL_AD_UNEXPECTED_MESSAGE;
+ SSLerr(SSL_F_DTLS1_GET_MESSAGE_FRAGMENT,SSL_R_UNEXPECTED_MESSAGE);
+ goto f_err;
+ }
/* parse the message fragment header */
dtls1_get_message_header(wire, &msg_hdr);
/* XDTLS: an incorrectly formatted fragment should cause the
* handshake to fail */
- OPENSSL_assert(i == (int)frag_len);
+ if (i != (int)frag_len)
+ {
+ al=SSL3_AD_ILLEGAL_PARAMETER;
+ SSLerr(SSL_F_DTLS1_GET_MESSAGE_FRAGMENT,SSL3_AD_ILLEGAL_PARAMETER);
+ goto f_err;
+ }
*ok = 1;
return p;
}
-static unsigned int
+unsigned int
dtls1_min_mtu(void)
{
return (g_probable_mtu[(sizeof(g_probable_mtu) /