From bf007d1c75aceb4e8a407f325d42ee9958049a31 Mon Sep 17 00:00:00 2001 From: Daniel Borkmann Date: Wed, 23 Sep 2015 21:56:46 +0200 Subject: [PATCH] cls_bpf: also dump TCA_BPF_FLAGS In commit 43388da42a49 ("cls_bpf: introduce integrated actions") we have added TCA_BPF_FLAGS. We can also retrieve this information from the prog, dump it back to user space as well. It's useful in tc when displaying/dumping filter info. Also, remove tp from cls_bpf_prog_from_efd(), came in as a conflict from a rebase and it's unused here (later work may add it along with a real user). Signed-off-by: Daniel Borkmann Acked-by: Alexei Starovoitov Signed-off-by: David S. Miller --- net/sched/cls_bpf.c | 11 ++++++++--- 1 file changed, 8 insertions(+), 3 deletions(-) diff --git a/net/sched/cls_bpf.c b/net/sched/cls_bpf.c index 0590816ab7b0..7d9241545188 100644 --- a/net/sched/cls_bpf.c +++ b/net/sched/cls_bpf.c @@ -265,8 +265,7 @@ static int cls_bpf_prog_from_ops(struct nlattr **tb, struct cls_bpf_prog *prog) return 0; } -static int cls_bpf_prog_from_efd(struct nlattr **tb, struct cls_bpf_prog *prog, - const struct tcf_proto *tp) +static int cls_bpf_prog_from_efd(struct nlattr **tb, struct cls_bpf_prog *prog) { struct bpf_prog *fp; char *name = NULL; @@ -339,7 +338,7 @@ static int cls_bpf_modify_existing(struct net *net, struct tcf_proto *tp, prog->exts_integrated = have_exts; ret = is_bpf ? cls_bpf_prog_from_ops(tb, prog) : - cls_bpf_prog_from_efd(tb, prog, tp); + cls_bpf_prog_from_efd(tb, prog); if (ret < 0) { tcf_exts_destroy(&exts); return ret; @@ -468,6 +467,7 @@ static int cls_bpf_dump(struct net *net, struct tcf_proto *tp, unsigned long fh, { struct cls_bpf_prog *prog = (struct cls_bpf_prog *) fh; struct nlattr *nest; + u32 bpf_flags = 0; int ret; if (prog == NULL) @@ -492,6 +492,11 @@ static int cls_bpf_dump(struct net *net, struct tcf_proto *tp, unsigned long fh, if (tcf_exts_dump(skb, &prog->exts) < 0) goto nla_put_failure; + if (prog->exts_integrated) + bpf_flags |= TCA_BPF_FLAG_ACT_DIRECT; + if (bpf_flags && nla_put_u32(skb, TCA_BPF_FLAGS, bpf_flags)) + goto nla_put_failure; + nla_nest_end(skb, nest); if (tcf_exts_dump_stats(skb, &prog->exts) < 0) -- 2.30.2