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authorDaniel Borkmann <daniel@iogearbox.net>2016-03-04 15:15:03 +0100
committerMichael Bestas <mkbestas@lineageos.org>2022-04-19 00:50:08 +0300
commitce8b33a484f8701eb6a613580a9ef963860f351e (patch)
tree31c6f10128c86f325b36dfe471a1c1f134d7daa5 /include/uapi/linux/bpf.h
parentc18d2a0a102e152e7868bb0caeeb6bbdf653118a (diff)
bpf: add flags to bpf_skb_store_bytes for clearing hash
When overwriting parts of the packet with bpf_skb_store_bytes() that were fed previously into skb->hash calculation, we should clear the current hash with skb_clear_hash(), so that a next skb_get_hash() call can determine the correct hash related to this skb. Signed-off-by: Daniel Borkmann <daniel@iogearbox.net> Acked-by: Alexei Starovoitov <ast@kernel.org> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Chatur27 <jasonbright2709@gmail.com>
Diffstat (limited to 'include/uapi/linux/bpf.h')
-rw-r--r--include/uapi/linux/bpf.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/uapi/linux/bpf.h b/include/uapi/linux/bpf.h
index ade74edb7bbb..fcfeec3f6db2 100644
--- a/include/uapi/linux/bpf.h
+++ b/include/uapi/linux/bpf.h
@@ -309,6 +309,7 @@ enum bpf_func_id {
/* BPF_FUNC_skb_store_bytes flags. */
#define BPF_F_RECOMPUTE_CSUM (1ULL << 0)
+#define BPF_F_INVALIDATE_HASH (1ULL << 1)
/* BPF_FUNC_l3_csum_replace and BPF_FUNC_l4_csum_replace flags.
* First 4 bits are for passing the header field size.