diff options
| author | Kuniyuki Iwashima <kuniyu@google.com> | 2025-08-22 19:06:59 +0000 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2025-08-25 17:53:35 -0700 |
| commit | cb16f4b6c73df4be16b74099f826fea30ef72426 (patch) | |
| tree | bd86aba0c7340d967b8e32e5d6698240bab715a5 /net/ipv4/tcp_ipv4.c | |
| parent | 8150f3a44b17cded59c4cfb71efd59f0a293c48e (diff) | |
tcp: Don't pass hashinfo to socket lookup helpers.
These socket lookup functions required struct inet_hashinfo because
they are shared by TCP and DCCP.
* __inet_lookup_established()
* __inet_lookup_listener()
* __inet6_lookup_established()
* inet6_lookup_listener()
DCCP has gone, and we don't need to pass hashinfo down to them.
Let's fetch net->ipv4.tcp_death_row.hashinfo directly in the above
4 functions.
Signed-off-by: Kuniyuki Iwashima <kuniyu@google.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Link: https://patch.msgid.link/20250822190803.540788-5-kuniyu@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'net/ipv4/tcp_ipv4.c')
| -rw-r--r-- | net/ipv4/tcp_ipv4.c | 16 |
1 files changed, 5 insertions, 11 deletions
diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c index a48b98f67b6a..a0c93b24c6e0 100644 --- a/net/ipv4/tcp_ipv4.c +++ b/net/ipv4/tcp_ipv4.c @@ -506,8 +506,7 @@ int tcp_v4_err(struct sk_buff *skb, u32 info) struct sock *sk; int err; - sk = __inet_lookup_established(net, net->ipv4.tcp_death_row.hashinfo, - iph->daddr, th->dest, iph->saddr, + sk = __inet_lookup_established(net, iph->daddr, th->dest, iph->saddr, ntohs(th->source), inet_iif(skb), 0); if (!sk) { __ICMP_INC_STATS(net, ICMP_MIB_INERRORS); @@ -823,8 +822,7 @@ static void tcp_v4_send_reset(const struct sock *sk, struct sk_buff *skb, * Incoming packet is checked with md5 hash with finding key, * no RST generated if md5 hash doesn't match. */ - sk1 = __inet_lookup_listener(net, net->ipv4.tcp_death_row.hashinfo, - NULL, 0, ip_hdr(skb)->saddr, + sk1 = __inet_lookup_listener(net, NULL, 0, ip_hdr(skb)->saddr, th->source, ip_hdr(skb)->daddr, ntohs(th->source), dif, sdif); /* don't send rst if it can't find key */ @@ -1992,8 +1990,7 @@ int tcp_v4_early_demux(struct sk_buff *skb) if (th->doff < sizeof(struct tcphdr) / 4) return 0; - sk = __inet_lookup_established(net, net->ipv4.tcp_death_row.hashinfo, - iph->saddr, th->source, + sk = __inet_lookup_established(net, iph->saddr, th->source, iph->daddr, ntohs(th->dest), skb->skb_iif, inet_sdif(skb)); if (sk) { @@ -2236,8 +2233,7 @@ int tcp_v4_rcv(struct sk_buff *skb) th = (const struct tcphdr *)skb->data; iph = ip_hdr(skb); lookup: - sk = __inet_lookup_skb(net->ipv4.tcp_death_row.hashinfo, - skb, __tcp_hdrlen(th), th->source, + sk = __inet_lookup_skb(skb, __tcp_hdrlen(th), th->source, th->dest, sdif, &refcounted); if (!sk) goto no_tcp_socket; @@ -2426,9 +2422,7 @@ do_time_wait: &drop_reason); switch (tw_status) { case TCP_TW_SYN: { - struct sock *sk2 = inet_lookup_listener(net, - net->ipv4.tcp_death_row.hashinfo, - skb, __tcp_hdrlen(th), + struct sock *sk2 = inet_lookup_listener(net, skb, __tcp_hdrlen(th), iph->saddr, th->source, iph->daddr, th->dest, inet_iif(skb), |