olen = with_gre ? sizeof(h_outer) : sizeof(h_outer.ip);
/* add room between mac and network header */
- if (bpf_skb_adjust_room(skb, olen, BPF_ADJ_ROOM_NET, 0))
+ if (bpf_skb_adjust_room(skb, olen, BPF_ADJ_ROOM_MAC, 0))
return TC_ACT_SHOT;
/* prepare new outer network header */
BPF_F_INVALIDATE_HASH) < 0)
return TC_ACT_SHOT;
- /* bpf_skb_adjust_room has moved header to start of room: restore */
- if (bpf_skb_store_bytes(skb, ETH_HLEN + olen,
- &iph_inner, sizeof(iph_inner),
- BPF_F_INVALIDATE_HASH) < 0)
- return TC_ACT_SHOT;
-
return TC_ACT_OK;
}
olen = with_gre ? sizeof(h_outer) : sizeof(h_outer.ip);
/* add room between mac and network header */
- if (bpf_skb_adjust_room(skb, olen, BPF_ADJ_ROOM_NET, 0))
+ if (bpf_skb_adjust_room(skb, olen, BPF_ADJ_ROOM_MAC, 0))
return TC_ACT_SHOT;
/* prepare new outer network header */
BPF_F_INVALIDATE_HASH) < 0)
return TC_ACT_SHOT;
- /* bpf_skb_adjust_room has moved header to start of room: restore */
- if (bpf_skb_store_bytes(skb, ETH_HLEN + olen,
- &iph_inner, sizeof(iph_inner),
- BPF_F_INVALIDATE_HASH) < 0)
- return TC_ACT_SHOT;
-
return TC_ACT_OK;
}
return TC_ACT_OK;
}
- if (bpf_skb_load_bytes(skb, off + olen, &buf, olen) < 0)
- return TC_ACT_OK;
-
- if (bpf_skb_adjust_room(skb, -olen, BPF_ADJ_ROOM_NET, 0))
- return TC_ACT_SHOT;
-
- /* bpf_skb_adjust_room has moved outer over inner header: restore */
- if (bpf_skb_store_bytes(skb, off, buf, len, BPF_F_INVALIDATE_HASH) < 0)
+ if (bpf_skb_adjust_room(skb, -olen, BPF_ADJ_ROOM_MAC, 0))
return TC_ACT_SHOT;
return TC_ACT_OK;