/* #endif */
#define BIO_CTRL_DGRAM_QUERY_MTU 40 /* as kernel for current MTU */
-#define BIO_CTRL_DGRAM_GET_FALLBACK_MTU 47
#define BIO_CTRL_DGRAM_GET_MTU 41 /* get cached value for MTU */
#define BIO_CTRL_DGRAM_SET_MTU 42 /* set cached value for
* MTU. want to use this
ret = 0;
#endif
break;
- case BIO_CTRL_DGRAM_GET_FALLBACK_MTU:
- switch (data->peer.sa.sa_family)
- {
- case AF_INET:
- ret = 576 - 20 - 8;
- break;
-#if OPENSSL_USE_IPV6
- case AF_INET6:
-#ifdef IN6_IS_ADDR_V4MAPPED
- if (IN6_IS_ADDR_V4MAPPED(&data->peer.sa_in6.sin6_addr))
- ret = 576 - 20 - 8;
- else
-#endif
- ret = 1280 - 40 - 8;
- break;
-#endif
- default:
- ret = 576 - 20 - 8;
- break;
- }
- break;
case BIO_CTRL_DGRAM_GET_MTU:
return data->mtu;
break;
unsigned int len, frag_off, mac_size, blocksize;
/* AHA! Figure out the MTU, and stick to the right size */
- if (s->d1->mtu < dtls1_min_mtu() && !(SSL_get_options(s) & SSL_OP_NO_QUERY_MTU))
+ 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);
/* I've seen the kernel return bogus numbers when it doesn't know
* (initial write), so just make sure we have a reasonable number */
- if (s->d1->mtu < dtls1_min_mtu())
+ if ( s->d1->mtu < dtls1_min_mtu())
{
s->d1->mtu = 0;
s->d1->mtu = dtls1_guess_mtu(s->d1->mtu);
state->timeout.read_timeouts = 1;
}
- if (state->timeout_duration > 2)
- {
- s->d1->mtu = BIO_ctrl(SSL_get_wbio(s), BIO_CTRL_DGRAM_GET_FALLBACK_MTU, 0, NULL);
- }
-
dtls1_start_timer(s);
return dtls1_retransmit_buffered_messages(s);
}