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updated ipv6 MTU discovery

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This commit is contained in:
Nikos Mavrogiannopoulos
2015-05-11 14:20:08 +02:00
committed by Nikos Mavrogiannopoulos
parent f2e5e7e441
commit 87a3fbf18e
1 changed files with 10 additions and 8 deletions
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src/worker-vpn.c
+10 -8
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@@ -661,17 +661,19 @@ int mtu_not_ok(worker_st * ws)
}
mtu -= CSTP_DTLS_OVERHEAD - ws->proto_overhead;
if (mtu >= ws->conn_mtu) {
oclog(ws, LOG_INFO, "the provided IPv6 MTU is larger than the used (was %u, new %d); disabling DTLS",
ws->conn_mtu, mtu);
dtls_close(ws);
ws->udp_state = UP_DISABLED;
return -1;
}
if (ws->dtls_session) {
gnutls_dtls_set_mtu(ws->dtls_session, mtu);
ws->conn_mtu = gnutls_dtls_get_data_mtu(session);
mtu = gnutls_dtls_get_data_mtu(ws->dtls_session);
if (mtu >= ws->conn_mtu) {
oclog(ws, LOG_INFO, "the provided IPv6 MTU is larger than the used (was %u, new %d); disabling DTLS",
ws->conn_mtu, mtu);
dtls_close(ws);
ws->udp_state = UP_DISABLED;
return -1;
}
ws->conn_mtu = mtu;
mtu_send(ws, ws->conn_mtu);
}
}