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authorIdo Schimmel <idosch@nvidia.com>2024-09-05 19:51:38 +0300
committerDavid S. Miller <davem@davemloft.net>2024-09-09 16:14:53 +0300
commit345663e6a727f6baa70989a8412c2c047389ca65 (patch)
tree182174f2435b04ce4e4527b38ef4846808217f5d /net/ipv4
parentb7172768abfd8aecdc6af05c60403af1664a4976 (diff)
downloadlinux-345663e6a727f6baa70989a8412c2c047389ca65.tar.xz
netfilter: nf_dup4: Unmask upper DSCP bits in nf_dup_ipv4_route()
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> Reviewed-by: Guillaume Nault <gnault@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4')
-rw-r--r--net/ipv4/netfilter/nf_dup_ipv4.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/net/ipv4/netfilter/nf_dup_ipv4.c b/net/ipv4/netfilter/nf_dup_ipv4.c
index 6cc5743c553a..f4aed0789d69 100644
--- a/net/ipv4/netfilter/nf_dup_ipv4.c
+++ b/net/ipv4/netfilter/nf_dup_ipv4.c
@@ -15,6 +15,7 @@
#include <net/icmp.h>
#include <net/ip.h>
#include <net/route.h>
+#include <net/inet_dscp.h>
#include <net/netfilter/ipv4/nf_dup_ipv4.h>
#if IS_ENABLED(CONFIG_NF_CONNTRACK)
#include <net/netfilter/nf_conntrack.h>
@@ -32,7 +33,7 @@ static bool nf_dup_ipv4_route(struct net *net, struct sk_buff *skb,
fl4.flowi4_oif = oif;
fl4.daddr = gw->s_addr;
- fl4.flowi4_tos = RT_TOS(iph->tos);
+ fl4.flowi4_tos = iph->tos & INET_DSCP_MASK;
fl4.flowi4_scope = RT_SCOPE_UNIVERSE;
fl4.flowi4_flags = FLOWI_FLAG_KNOWN_NH;
rt = ip_route_output_key(net, &fl4);