On Mon, 16 Jul 2018 14:47:41 +0000
Mathieu Xhonneux <m.xhonn...@gmail.com> wrote:
> This patch adds support for the End.BPF action of the seg6local
> lightweight tunnel. Functions from the BPF lightweight tunnel are
> re-used in this patch. Example:
>
> $ ip -6 route add fc00::18 encap seg6local action End.BPF obj my_bpf.o
> sec my_func dev eth0
>
> $ ip -6 route show fc00::18
> fc00::18 encap seg6local action End.BPF my_bpf.o:[my_func] dev eth0
> metric 1024 pref medium
>
> Signed-off-by: Mathieu Xhonneux <m.xhonn...@gmail.com>
> ---
> ip/iproute_lwtunnel.c | 122
> +++++++++++++++++++++++++++++---------------------
> lib/bpf.c | 5 +++
> 2 files changed, 77 insertions(+), 50 deletions(-)
>
> diff --git a/ip/iproute_lwtunnel.c b/ip/iproute_lwtunnel.c
> index 46a212c8..71c3d8a4 100644
> --- a/ip/iproute_lwtunnel.c
> +++ b/ip/iproute_lwtunnel.c
> @@ -177,6 +177,7 @@ static const char
> *seg6_action_names[SEG6_LOCAL_ACTION_MAX + 1] = {
> [SEG6_LOCAL_ACTION_END_S] = "End.S",
> [SEG6_LOCAL_ACTION_END_AS] = "End.AS",
> [SEG6_LOCAL_ACTION_END_AM] = "End.AM",
> + [SEG6_LOCAL_ACTION_END_BPF] = "End.BPF",
> };
>
> static const char *format_action_type(int action)
> @@ -250,6 +251,15 @@ static void print_encap_seg6local(FILE *fp, struct
> rtattr *encap)
> print_string(PRINT_ANY, "oif",
> "oif %s ", ll_index_to_name(oif));
> }
> +
> + if (tb[SEG6_LOCAL_BPF]) {
> + struct rtattr *tb_bpf[LWT_BPF_PROG_MAX+1];
> +
> + parse_rtattr_nested(tb_bpf, LWT_BPF_PROG_MAX,
> tb[SEG6_LOCAL_BPF]);
> +
> + if (tb_bpf[LWT_BPF_PROG_NAME])
> + fprintf(fp, "%s ",
> rta_getattr_str(tb_bpf[LWT_BPF_PROG_NAME]));
> + }
> }
Please use print_string to support JSON output.
