diff options
| author | Ido Schimmel <idosch@nvidia.com> | 2024-08-21 15:52:45 +0300 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2024-08-22 16:59:57 -0700 |
| commit | 2bc9778b6696337f1e0b38f07522319296b39d83 (patch) | |
| tree | ecb646a51075da866db53c2d9a37df2aae226539 /net/ipv4/ipmr.c | |
| parent | 338385e059c5d299556fa341d10601ae72c6e932 (diff) | |
ipv4: ipmr: Unmask upper DSCP bits in ipmr_rt_fib_lookup()
Unmask the upper DSCP bits when calling ipmr_fib_lookup() so that in the
future it could perform the FIB lookup according to the full DSCP value.
Note that ipmr_fib_lookup() performs a FIB rule lookup (returning the
relevant routing table) and that IPv4 multicast FIB rules do not support
matching on TOS / DSCP. However, it is still worth unmasking the upper
DSCP bits in case support for DSCP matching is ever added.
Signed-off-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: Guillaume Nault <gnault@redhat.com>
Acked-by: Florian Westphal <fw@strlen.de>
Reviewed-by: David Ahern <dsahern@kernel.org>
Link: https://patch.msgid.link/20240821125251.1571445-7-idosch@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'net/ipv4/ipmr.c')
| -rw-r--r-- | net/ipv4/ipmr.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/net/ipv4/ipmr.c b/net/ipv4/ipmr.c index 6c750bd13dd8..d5295b69bc0a 100644 --- a/net/ipv4/ipmr.c +++ b/net/ipv4/ipmr.c @@ -62,6 +62,7 @@ #include <net/fib_rules.h> #include <linux/netconf.h> #include <net/rtnh.h> +#include <net/inet_dscp.h> #include <linux/nospec.h> @@ -2080,7 +2081,7 @@ static struct mr_table *ipmr_rt_fib_lookup(struct net *net, struct sk_buff *skb) struct flowi4 fl4 = { .daddr = iph->daddr, .saddr = iph->saddr, - .flowi4_tos = RT_TOS(iph->tos), + .flowi4_tos = iph->tos & INET_DSCP_MASK, .flowi4_oif = (rt_is_output_route(rt) ? skb->dev->ifindex : 0), .flowi4_iif = (rt_is_output_route(rt) ? |