On Sun, May 24, 2015 at 1:27 PM, Nikos Mavrogiannopoulos <nmav at gnutls.org>
wrote:
> Do you know what is the equivalent of IPV6_MTU in freebsd?
IPV6_MTU should be IPV6_PATHMTU [1]. The latter is supported by OpenBSD, FreeBSD
and Linux. A simple patch should suffice:
--- ../src/worker-vpn.c.orig Sun May 24 14:35:14 2015
+++ ../src/worker-vpn.c Sun May 24 14:40:20 2015
@@ -659,7 +659,7 @@ int mtu_not_ok(worker_st * ws)
int mtu;
socklen_t len = sizeof(mtu);
- if (getsockopt(ws->dtls_tptr.fd, IPPROTO_IPV6, IPV6_MTU, &mtu, &len) < 0 || mtu < 1280) {
+ if (getsockopt(ws->dtls_tptr.fd, IPPROTO_IPV6, IPV6_PATHMTU, &mtu, &len) < 0 || mtu < 1280) {
oclog(ws, LOG_INFO, "cannot obtain IPv6 MTU (was %u); disabling DTLS",
ws->conn_mtu);
dtls_close(ws);
[1] http://www.rfc-editor.org/errata_search.php?rfc=3542
--
Bj?rn Ketelaars <bjorn.ketelaars at hydroxide.nl>
GPG key: 0x4F0E5F21
