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authorIdo Schimmel <idosch@nvidia.com>2024-08-29 09:54:53 +0300
committerDavid S. Miller <davem@davemloft.net>2024-08-31 17:44:51 +0100
commitf6c89e95555ace0cb10d01b07756bfa5db5ee7fa (patch)
tree5ed2e6c1f91e5c1ed1081a6f5b8ab63bb40b69d1
parent356d054a4967e6190ee558b8e839fad3e9db35ec (diff)
ipv4: Unmask upper DSCP bits when building flow key
build_sk_flow_key() and __build_flow_key() are used to build an IPv4 flow key before calling one of the FIB lookup APIs. Unmask the upper DSCP bits so that in the future the lookup could be performed according to the full DSCP value. Signed-off-by: Ido Schimmel <idosch@nvidia.com> Reviewed-by: Guillaume Nault <gnault@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
-rw-r--r--net/ipv4/route.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/net/ipv4/route.c b/net/ipv4/route.c
index 5a77dc6d9c72..723ac9181558 100644
--- a/net/ipv4/route.c
+++ b/net/ipv4/route.c
@@ -512,7 +512,7 @@ static void __build_flow_key(const struct net *net, struct flowi4 *fl4,
sk->sk_protocol;
}
- flowi4_init_output(fl4, oif, mark, tos & IPTOS_RT_MASK, scope,
+ flowi4_init_output(fl4, oif, mark, tos & INET_DSCP_MASK, scope,
prot, flow_flags, iph->daddr, iph->saddr, 0, 0,
sock_net_uid(net, sk));
}
@@ -541,7 +541,7 @@ static void build_sk_flow_key(struct flowi4 *fl4, const struct sock *sk)
if (inet_opt && inet_opt->opt.srr)
daddr = inet_opt->opt.faddr;
flowi4_init_output(fl4, sk->sk_bound_dev_if, READ_ONCE(sk->sk_mark),
- ip_sock_rt_tos(sk) & IPTOS_RT_MASK,
+ ip_sock_rt_tos(sk),
ip_sock_rt_scope(sk),
inet_test_bit(HDRINCL, sk) ?
IPPROTO_RAW : sk->sk_protocol,