tree 7b4135337645d51a461f9cfb3d0293db4947db62
parent e0853f3c285a6ad082e5ed5ff5e308beeeba41d9
author Phil Oester <kernel@linuxace.com> 1381249215 -0700
committer Pablo Neira Ayuso <pablo@netfilter.org> 1383510315 +0100

iptables: spurious error in load_extension

In commit 927385017047d (iptables: improve error reporting with extension
loading troubles), a new error message was added in an attempt to handle
the case where a match does not support a particular protocol family.
For instance, attempting to use the osf match on IPv6.

Unfortunately, this error message now triggers when creating a new chain
which has the same name as a match extension, because iptables calls
xtables_find_target with the name of the new chain to verify it does not
clash with an existing target.  For example:

    # iptables -N tcp
    /usr/lib/xtables/libxt_tcp.so: no "tcp" extension found for this protocol

I attempted to resolve this by adding a new XTF flag, but that required changes
in many different places (including -j handling).  It seems easiest just to
remove this warning and stick with the original error message of ENOENT, even
if less than precise.

Signed-off-by: Phil Oester <kernel@linuxace.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>