On Mon, Feb 04, 2013 at 03:56:25PM +0100, Eelco Dolstra wrote: > Returning IPv6 link-local addresses is a bad idea, because they only > work if an application connects specifically over the corresponding > interface. Isn't this a responsibility of the application to deal with that?
> So you get errors like: > > $ curl -6 http://my-machine/ > curl: (7) Failed to connect to fe80::d6be:d9ff:fe1b:8477: Invalid argument $ hostnamectl set-hostname bupkis-tmp $ curl -6v bupkis-tmp * About to connect() to bupkis-tmp port 80 (#0) * Trying fe80::a60:6eff:fe00:6241... * Connection refused * couldn't connect to host * Closing connection #0 curl: (7) couldn't connect to host So here everything is working as expected (I don't have an http server). Zbyszek > To prevent this, this patch filters out link-local addresses. So if > you don't have a routable IPv6 address, nss-myhostname will fall back > to returning ::1. > --- > src/nss-myhostname/netlink.c | 4 ++++ > 1 file changed, 4 insertions(+) > > diff --git a/src/nss-myhostname/netlink.c b/src/nss-myhostname/netlink.c > index 53c3b50..621ca1d 100644 > --- a/src/nss-myhostname/netlink.c > +++ b/src/nss-myhostname/netlink.c > @@ -155,6 +155,10 @@ int ifconf_acquire_addresses(struct address **_list, > unsigned *_n_list) { > ifaddrmsg->ifa_scope == RT_SCOPE_NOWHERE) > continue; > > + if (ifaddrmsg->ifa_family == AF_INET6 && > + ifaddrmsg->ifa_scope == RT_SCOPE_LINK) > + continue; > + > if (ifaddrmsg->ifa_flags & IFA_F_DEPRECATED) > continue; > > -- > 1.8.1 > > _______________________________________________ > systemd-devel mailing list > systemd-devel@lists.freedesktop.org > http://lists.freedesktop.org/mailman/listinfo/systemd-devel > _______________________________________________ systemd-devel mailing list systemd-devel@lists.freedesktop.org http://lists.freedesktop.org/mailman/listinfo/systemd-devel
