Commit 4b041d28 authored by Ido Schimmel's avatar Ido Schimmel Committed by Jakub Kicinski
Browse files

net: fib_rules: Enable DSCP selector usage 



Now that both IPv4 and IPv6 support the new DSCP selector, enable user
space to configure FIB rules that make use of it by changing the policy
of the new DSCP attribute so that it accepts values in the range of [0,
63].

Use NLA_U8 rather than NLA_UINT as the field is of fixed size.

Signed-off-by: default avatarIdo Schimmel <idosch@nvidia.com>
Reviewed-by: default avatarGuillaume Nault <gnault@redhat.com>
Reviewed-by: default avatarDavid Ahern <dsahern@kernel.org>
Link: https://patch.msgid.link/20240911093748.3662015-5-idosch@nvidia.com


Signed-off-by: default avatarJakub Kicinski <kuba@kernel.org>
parent 2cf63003

net/core/fib_rules.c

+2 −1
Original line number Diff line number Diff line
@@ -11,6 +11,7 @@ 
#include <linux/list.h>

#include <linux/module.h>

#include <net/net_namespace.h>

#include <net/inet_dscp.h>

#include <net/sock.h>

#include <net/fib_rules.h>

#include <net/ip_tunnels.h>
@@ -767,7 +768,7 @@ static const struct nla_policy fib_rule_policy[FRA_MAX + 1] = { 
	[FRA_IP_PROTO]  = { .type = NLA_U8 },

	[FRA_SPORT_RANGE] = { .len = sizeof(struct fib_rule_port_range) },

	[FRA_DPORT_RANGE] = { .len = sizeof(struct fib_rule_port_range) },

	[FRA_DSCP]	= { .type = NLA_REJECT },

	[FRA_DSCP]	= NLA_POLICY_MAX(NLA_U8, INET_DSCP_MASK >> 2),

};



int fib_nl_newrule(struct sk_buff *skb, struct nlmsghdr *nlh,