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net: sched: use skb_ip_totlen and iph_totlen

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There are 1 action and 1 qdisc that may process IPv4 TCP GSO packets
and access iph->tot_len, replace them with skb_ip_totlen() and
iph_totlen() accordingly.

Note that we don't need to replace the one in tcf_csum_ipv4(), as it
will return for TCP GSO packets in tcf_csum_ipv4_tcp().

Signed-off-by: Xin Long <lucien.xin@gmail.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Xin Long 2023-01-28 10:58:33 -05:00 committed by Jakub Kicinski
parent ec84c955a0
commit 043e397e48
2 changed files with 2 additions and 2 deletions
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2
net/sched/act_ct.c
View File

@ -707,7 +707,7 @@ static int tcf_ct_skb_network_trim(struct sk_buff *skb, int family)
switch (family) {
case NFPROTO_IPV4:
len = ntohs(ip_hdr(skb)->tot_len);
len = skb_ip_totlen(skb);
break;
case NFPROTO_IPV6:
len = sizeof(struct ipv6hdr)

2
net/sched/sch_cake.c
View File

@ -1209,7 +1209,7 @@ static struct sk_buff *cake_ack_filter(struct cake_sched_data *q,
iph_check->daddr != iph->daddr)
continue;
seglen = ntohs(iph_check->tot_len) -
seglen = iph_totlen(skb, iph_check) -
(4 * iph_check->ihl);
} else if (iph_check->version == 6) {
ipv6h = (struct ipv6hdr *)iph;