On Tue, 2 Jul 2019 13:50:04 +0200 (CEST), Michal Kubecek wrote: > Add common request/reply header definition and helpers to parse request > header and fill reply header. Provide ethnl_update_* helpers to update > structure members from request attributes (to be used for *_SET requests). > > Signed-off-by: Michal Kubecek <mkube...@suse.cz>
> diff --git a/net/ethtool/netlink.c b/net/ethtool/netlink.c > index 3c98b41f04e5..e13f29bbd625 100644 > --- a/net/ethtool/netlink.c > +++ b/net/ethtool/netlink.c > @@ -1,8 +1,181 @@ > // SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note > > +#include <net/sock.h> > #include <linux/ethtool_netlink.h> > #include "netlink.h" > > +static struct genl_family ethtool_genl_family; > + > +static const struct nla_policy dflt_header_policy[ETHTOOL_A_HEADER_MAX + 1] > = { > + [ETHTOOL_A_HEADER_UNSPEC] = { .type = NLA_REJECT }, I think we want strict checking on all new netlink interfaces, and unfortunately that feature is opt-in.. so you need to add: .strict_start_type = ETHTOOL_A_HEADER_UNSPEC + 1 To the first attr. > + [ETHTOOL_A_HEADER_DEV_INDEX] = { .type = NLA_U32 }, > + [ETHTOOL_A_HEADER_DEV_NAME] = { .type = NLA_NUL_STRING, > + .len = IFNAMSIZ - 1 }, > + [ETHTOOL_A_HEADER_INFOMASK] = { .type = NLA_U32 }, > + [ETHTOOL_A_HEADER_GFLAGS] = { .type = NLA_U32 }, > + [ETHTOOL_A_HEADER_RFLAGS] = { .type = NLA_U32 }, > +};