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net: sched: act_sample: add action cookie to sample

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If the action has a user_cookie, pass it along to the sample so it can
be easily identified.

Reviewed-by: Michal Kubiak <michal.kubiak@intel.com>
Reviewed-by: Aaron Conole <aconole@redhat.com>
Acked-by: Eelco Chaudron <echaudro@redhat.com>
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Signed-off-by: Adrian Moreno <amorenoz@redhat.com>
Link: https://patch.msgid.link/20240704085710.353845-3-amorenoz@redhat.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Adrian Moreno 2024-07-04 10:56:53 +02:00 • committed by Jakub Kicinski
parent 093b0f3665
commit 03448444ae
1 changed files with 12 additions and 0 deletions
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12
net/sched/act_sample.c
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@ -167,7 +167,9 @@ TC_INDIRECT_SCOPE int tcf_sample_act(struct sk_buff *skb,
{
struct tcf_sample *s = to_sample(a);
struct psample_group *psample_group;
u8 cookie_data[TC_COOKIE_MAX_SIZE];
struct psample_metadata md = {};
struct tc_cookie *user_cookie;
int retval;
tcf_lastuse_update(&s->tcf_tm);
@ -189,6 +191,16 @@ TC_INDIRECT_SCOPE int tcf_sample_act(struct sk_buff *skb,
if (skb_at_tc_ingress(skb) && tcf_sample_dev_ok_push(skb->dev))
skb_push(skb, skb->mac_len);
rcu_read_lock();
user_cookie = rcu_dereference(a->user_cookie);
if (user_cookie) {
memcpy(cookie_data, user_cookie->data,
user_cookie->len);
md.user_cookie = cookie_data;
md.user_cookie_len = user_cookie->len;
}
rcu_read_unlock();
md.trunc_size = s->truncate ? s->trunc_size : skb->len;
psample_sample_packet(psample_group, skb, s->rate, &md);