提交 5c0ca3f5 编写于 作者: J Jakub Kicinski 提交者: David S. Miller

test_bpf: fix the dummy skb after dissector changes

Commit d5709f7a ("flow_dissector: For stripped vlan, get vlan
info from skb->vlan_tci") made flow dissector look at vlan_proto
when vlan is present.  Since test_bpf sets skb->vlan_tci to ~0
(including VLAN_TAG_PRESENT) we have to populate skb->vlan_proto.

Fixes false negative on test #24:
test_bpf: #24 LD_PAYLOAD_OFF jited:0 175 ret 0 != 42 FAIL (1 times)
Signed-off-by: NJakub Kicinski <jakub.kicinski@netronome.com>
Reviewed-by: NDinan Gunawardena <dinan.gunawardena@netronome.com>
Acked-by: NDaniel Borkmann <daniel@iogearbox.net>
Acked-by: NAlexei Starovoitov <ast@kernel.org>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
上级 d560846e
......@@ -5485,6 +5485,7 @@ static struct sk_buff *populate_skb(char *buf, int size)
skb->hash = SKB_HASH;
skb->queue_mapping = SKB_QUEUE_MAP;
skb->vlan_tci = SKB_VLAN_TCI;
skb->vlan_proto = htons(ETH_P_IP);
skb->dev = &dev;
skb->dev->ifindex = SKB_DEV_IFINDEX;
skb->dev->type = SKB_DEV_TYPE;
......
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