Interface groups let handle different interfaces together especially in netfilter modules. Modified net device structure and netlink interface. Signed-off-by: Laszlo Attila Toth <panther@xxxxxxxxxx> --- include/linux/if_link.h | 2 ++ include/linux/netdevice.h | 2 ++ net/core/rtnetlink.c | 10 ++++++++++ 3 files changed, 14 insertions(+), 0 deletions(-) diff --git a/include/linux/if_link.h b/include/linux/if_link.h index 422084d..d9f1726 100644 --- a/include/linux/if_link.h +++ b/include/linux/if_link.h @@ -78,6 +78,8 @@ enum IFLA_LINKMODE, IFLA_LINKINFO, #define IFLA_LINKINFO IFLA_LINKINFO + IFLA_IFGROUP, +#define IFLA_IFGROUP IFLA_IFGROUP __IFLA_MAX }; diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index e679b27..c489a20 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -365,6 +365,8 @@ struct net_device /* Interface index. Unique device identifier */ int ifindex; int iflink; + /* interface group this interface belongs to */ + u_int32_t ifgroup; struct net_device_stats* (*get_stats)(struct net_device *dev); diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c index 4756d58..bbe4a98 100644 --- a/net/core/rtnetlink.c +++ b/net/core/rtnetlink.c @@ -608,6 +608,7 @@ static inline size_t if_nlmsg_size(const struct net_device *dev) + nla_total_size(4) /* IFLA_MTU */ + nla_total_size(4) /* IFLA_LINK */ + nla_total_size(4) /* IFLA_MASTER */ + + nla_total_size(4) /* IFLA_IFGROUP */ + nla_total_size(1) /* IFLA_OPERSTATE */ + nla_total_size(1) /* IFLA_LINKMODE */ + rtnl_link_get_size(dev); /* IFLA_LINKINFO */ @@ -646,6 +647,9 @@ static int rtnl_fill_ifinfo(struct sk_buff *skb, struct net_device *dev, if (dev->master) NLA_PUT_U32(skb, IFLA_MASTER, dev->master->ifindex); + if (dev->ifgroup) + NLA_PUT_U32(skb, IFLA_IFGROUP, dev->ifgroup); + if (dev->qdisc_sleeping) NLA_PUT_STRING(skb, IFLA_QDISC, dev->qdisc_sleeping->ops->id); @@ -846,6 +850,12 @@ static int do_setlink(struct net_device *dev, struct ifinfomsg *ifm, write_unlock_bh(&dev_base_lock); } + if (tb[IFLA_IFGROUP]) { + write_lock_bh(&dev_base_lock); + dev->ifgroup = nla_get_u32(tb[IFLA_IFGROUP]); + write_unlock_bh(&dev_base_lock); + } + err = 0; errout: -- 1.5.2.5 - To unsubscribe from this list: send the line "unsubscribe netfilter-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html