diff options
| author |   Vlad Buslov <vladbu@mellanox.com> | 2020-05-15 14:40:13 +0300 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2020-05-15 10:23:11 -0700 |
| commit | 0348451db9fffebd01d7b496e108dd729c2fcb24 (patch) | |
| tree | add7cd8548ee367f4a5d8f8c1e622a226b24f100 | |
| parent | net: sched: implement terse dump support in act (diff) | |
| download | wireguard-linux-0348451db9fffebd01d7b496e108dd729c2fcb24.tar.xz wireguard-linux-0348451db9fffebd01d7b496e108dd729c2fcb24.zip | |
net: sched: cls_flower: implement terse dump support
Implement tcf_proto_ops->terse_dump() callback for flower classifier. Only
dump handle, flags and action data in terse mode.
Signed-off-by: Vlad Buslov <vladbu@mellanox.com>
Reviewed-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | net/sched/cls_flower.c | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/net/sched/cls_flower.c b/net/sched/cls_flower.c index 74a0febcafb8..0c574700da75 100644 --- a/net/sched/cls_flower.c +++ b/net/sched/cls_flower.c @@ -2768,6 +2768,48 @@ nla_put_failure: return -1; } +static int fl_terse_dump(struct net *net, struct tcf_proto *tp, void *fh, + struct sk_buff *skb, struct tcmsg *t, bool rtnl_held) +{ + struct cls_fl_filter *f = fh; + struct nlattr *nest; + bool skip_hw; + + if (!f) + return skb->len; + + t->tcm_handle = f->handle; + + nest = nla_nest_start_noflag(skb, TCA_OPTIONS); + if (!nest) + goto nla_put_failure; + + spin_lock(&tp->lock); + + skip_hw = tc_skip_hw(f->flags); + + if (f->flags && nla_put_u32(skb, TCA_FLOWER_FLAGS, f->flags)) + goto nla_put_failure_locked; + + spin_unlock(&tp->lock); + + if (!skip_hw) + fl_hw_update_stats(tp, f, rtnl_held); + + if (tcf_exts_terse_dump(skb, &f->exts)) + goto nla_put_failure; + + nla_nest_end(skb, nest); + + return skb->len; + +nla_put_failure_locked: + spin_unlock(&tp->lock); +nla_put_failure: + nla_nest_cancel(skb, nest); + return -1; +} + static int fl_tmplt_dump(struct sk_buff *skb, struct net *net, void *tmplt_priv) { struct fl_flow_tmplt *tmplt = tmplt_priv; @@ -2832,6 +2874,7 @@ static struct tcf_proto_ops cls_fl_ops __read_mostly = { .hw_add = fl_hw_add, .hw_del = fl_hw_del, .dump = fl_dump, + .terse_dump = fl_terse_dump, .bind_class = fl_bind_class, .tmplt_create = fl_tmplt_create, .tmplt_destroy = fl_tmplt_destroy, |