From d2c280d41b7c313ea8032999f682f773ffaf2159 Mon Sep 17 00:00:00 2001 From: Lorenzo Colitti Date: Tue, 18 Feb 2020 15:33:50 +0900 Subject: [PATCH] ANDROID: net: bpf: Allow TC programs to call BPF_FUNC_skb_change_head MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This enables ebpf tethering offload from a cellular interface with no L2 mac header to a wifi/ethernet/usb interface with one. Will pursue upstreaming this along with further mtu related fixups. Test: builds, real testing with identical patch on a 4.14 flame device Bug: 149724482 Signed-off-by: Lorenzo Colitti Signed-off-by: Maciej Żenczykowski Change-Id: Ic182320bf1abb248d0f86fa2973c60208710f664 --- net/core/filter.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/net/core/filter.c b/net/core/filter.c index c180871e606d..c0860aa15407 100644 --- a/net/core/filter.c +++ b/net/core/filter.c @@ -6075,6 +6075,8 @@ tc_cls_act_func_proto(enum bpf_func_id func_id, const struct bpf_prog *prog) return &bpf_skb_adjust_room_proto; case BPF_FUNC_skb_change_tail: return &bpf_skb_change_tail_proto; + case BPF_FUNC_skb_change_head: + return &bpf_skb_change_head_proto; case BPF_FUNC_skb_get_tunnel_key: return &bpf_skb_get_tunnel_key_proto; case BPF_FUNC_skb_set_tunnel_key: