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| author | Kumar Kartikeya Dwivedi <memxor@gmail.com> | 2021-07-02 16:48:21 +0530 |
|---|---|---|
| committer | Alexei Starovoitov <ast@kernel.org> | 2021-07-07 20:01:45 -0700 |
| commit | fe21cb91ae7bca1ae7805454be80b6d03bec85f7 (patch) | |
| tree | 91a88140fb07744b5809d5791e6c1e99896de020 /include/linux | |
| parent | a080cdccc93da8754e4a20aea4f9c5fcc448547f (diff) | |
| download | linux-stable-fe21cb91ae7bca1ae7805454be80b6d03bec85f7.tar.gz linux-stable-fe21cb91ae7bca1ae7805454be80b6d03bec85f7.tar.bz2 linux-stable-fe21cb91ae7bca1ae7805454be80b6d03bec85f7.zip | |
net: core: Split out code to run generic XDP prog
This helper can later be utilized in code that runs cpumap and devmap
programs in generic redirect mode and adjust skb based on changes made
to xdp_buff.
When returning XDP_REDIRECT/XDP_TX, it invokes __skb_push, so whenever a
generic redirect path invokes devmap/cpumap prog if set, it must
__skb_pull again as we expect mac header to be pulled.
It also drops the skb_reset_mac_len call after do_xdp_generic, as the
mac_header and network_header are advanced by the same offset, so the
difference (mac_len) remains constant.
Signed-off-by: Kumar Kartikeya Dwivedi <memxor@gmail.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Reviewed-by: Toke Høiland-Jørgensen <toke@redhat.com>
Link: https://lore.kernel.org/bpf/20210702111825.491065-2-memxor@gmail.com
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/netdevice.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h index eaf5bb008aa9..42f6f866d5f3 100644 --- a/include/linux/netdevice.h +++ b/include/linux/netdevice.h @@ -3984,6 +3984,8 @@ static inline void dev_consume_skb_any(struct sk_buff *skb) __dev_kfree_skb_any(skb, SKB_REASON_CONSUMED); } +u32 bpf_prog_run_generic_xdp(struct sk_buff *skb, struct xdp_buff *xdp, + struct bpf_prog *xdp_prog); void generic_xdp_tx(struct sk_buff *skb, struct bpf_prog *xdp_prog); int do_xdp_generic(struct bpf_prog *xdp_prog, struct sk_buff *skb); int netif_rx(struct sk_buff *skb); |