diff options
| author | Dmitry Safonov <0x7f454c46@gmail.com> | 2024-06-07 00:25:56 +0100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2024-06-12 06:39:04 +0100 |
| commit | 72863087f635367323693b9ab83c3107e0353c5f (patch) | |
| tree | c1c873f9035791be156546af13b4324b57e99fde | |
| parent | 3966a668bfeef49e265e4975a2cdc55fb931036d (diff) | |
net/tcp: Add a helper tcp_ao_hdr_maclen()
It's going to be used more in TCP-AO tracepoints.
Reviewed-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Dmitry Safonov <0x7f454c46@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | include/net/tcp_ao.h | 5 | ||||
| -rw-r--r-- | net/ipv4/tcp_ao.c | 2 |
2 files changed, 6 insertions, 1 deletions
diff --git a/include/net/tcp_ao.h b/include/net/tcp_ao.h index 5d8e9ed2c005..198e02004ad2 100644 --- a/include/net/tcp_ao.h +++ b/include/net/tcp_ao.h @@ -19,6 +19,11 @@ struct tcp_ao_hdr { u8 rnext_keyid; }; +static inline u8 tcp_ao_hdr_maclen(const struct tcp_ao_hdr *aoh) +{ + return aoh->length - sizeof(struct tcp_ao_hdr); +} + struct tcp_ao_counters { atomic64_t pkt_good; atomic64_t pkt_bad; diff --git a/net/ipv4/tcp_ao.c b/net/ipv4/tcp_ao.c index 37c42b63ff99..50ae43c92829 100644 --- a/net/ipv4/tcp_ao.c +++ b/net/ipv4/tcp_ao.c @@ -884,8 +884,8 @@ tcp_ao_verify_hash(const struct sock *sk, const struct sk_buff *skb, const struct tcp_ao_hdr *aoh, struct tcp_ao_key *key, u8 *traffic_key, u8 *phash, u32 sne, int l3index) { - u8 maclen = aoh->length - sizeof(struct tcp_ao_hdr); const struct tcphdr *th = tcp_hdr(skb); + u8 maclen = tcp_ao_hdr_maclen(aoh); void *hash_buf = NULL; if (maclen != tcp_ao_maclen(key)) { |