[PATCH net-next 04/12] ipv4: icmp: Unmask upper DSCP bits in icmp_reply()
From: Ido Schimmel <idosch@nvidia.com>
Date: 2024-09-05 16:53:34
Also in:
bpf, bridge, linux-sctp, netfilter-devel
Subsystem:
networking [general], networking [ipv4/ipv6], the rest · Maintainers:
"David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, David Ahern, Ido Schimmel, Linus Torvalds
Unmask the upper DSCP bits when calling ip_route_output_key() so that in the future it could perform the FIB lookup according to the full DSCP value. Signed-off-by: Ido Schimmel <idosch@nvidia.com> --- net/ipv4/icmp.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/net/ipv4/icmp.c b/net/ipv4/icmp.c
index d2463b6e390e..e1384e7331d8 100644
--- a/net/ipv4/icmp.c
+++ b/net/ipv4/icmp.c@@ -445,7 +445,7 @@ static void icmp_reply(struct icmp_bxm *icmp_param, struct sk_buff *skb) fl4.saddr = saddr; fl4.flowi4_mark = mark; fl4.flowi4_uid = sock_net_uid(net, NULL); - fl4.flowi4_tos = RT_TOS(ip_hdr(skb)->tos); + fl4.flowi4_tos = ip_hdr(skb)->tos & INET_DSCP_MASK; fl4.flowi4_proto = IPPROTO_ICMP; fl4.flowi4_oif = l3mdev_master_ifindex(skb->dev); security_skb_classify_flow(skb, flowi4_to_flowi_common(&fl4));
--
2.46.0