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authorIdo Schimmel <idosch@nvidia.com>2023-04-19 17:34:59 +0200
committerDavid S. Miller <davem@davemloft.net>2023-04-21 09:25:50 +0200
commit160656d7201d861a1f2a0bf279a765e8cda2317a (patch)
tree7011496406c94efa5515e952c968c44528305756 /net/bridge
parentbridge: vlan: Allow setting VLAN neighbor suppression state (diff)
downloadlinux-160656d7201d861a1f2a0bf279a765e8cda2317a.tar.xz
linux-160656d7201d861a1f2a0bf279a765e8cda2317a.zip
bridge: Allow setting per-{Port, VLAN} neighbor suppression state
Add a new bridge port attribute that allows user space to enable per-{Port, VLAN} neighbor suppression. Example: # bridge -d -j -p link show dev swp1 | jq '.[]["neigh_vlan_suppress"]' false # bridge link set dev swp1 neigh_vlan_suppress on # bridge -d -j -p link show dev swp1 | jq '.[]["neigh_vlan_suppress"]' true # bridge link set dev swp1 neigh_vlan_suppress off # bridge -d -j -p link show dev swp1 | jq '.[]["neigh_vlan_suppress"]' false Signed-off-by: Ido Schimmel <idosch@nvidia.com> Acked-by: Nikolay Aleksandrov <razor@blackwall.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/bridge')
-rw-r--r--net/bridge/br_netlink.c8
1 files changed, 7 insertions, 1 deletions
diff --git a/net/bridge/br_netlink.c b/net/bridge/br_netlink.c
index fefb1c0e248b..05c5863d2e20 100644
--- a/net/bridge/br_netlink.c
+++ b/net/bridge/br_netlink.c
@@ -189,6 +189,7 @@ static inline size_t br_port_info_size(void)
+ nla_total_size(1) /* IFLA_BRPORT_ISOLATED */
+ nla_total_size(1) /* IFLA_BRPORT_LOCKED */
+ nla_total_size(1) /* IFLA_BRPORT_MAB */
+ + nla_total_size(1) /* IFLA_BRPORT_NEIGH_VLAN_SUPPRESS */
+ nla_total_size(sizeof(struct ifla_bridge_id)) /* IFLA_BRPORT_ROOT_ID */
+ nla_total_size(sizeof(struct ifla_bridge_id)) /* IFLA_BRPORT_BRIDGE_ID */
+ nla_total_size(sizeof(u16)) /* IFLA_BRPORT_DESIGNATED_PORT */
@@ -278,7 +279,9 @@ static int br_port_fill_attrs(struct sk_buff *skb,
!!(p->flags & BR_MRP_LOST_IN_CONT)) ||
nla_put_u8(skb, IFLA_BRPORT_ISOLATED, !!(p->flags & BR_ISOLATED)) ||
nla_put_u8(skb, IFLA_BRPORT_LOCKED, !!(p->flags & BR_PORT_LOCKED)) ||
- nla_put_u8(skb, IFLA_BRPORT_MAB, !!(p->flags & BR_PORT_MAB)))
+ nla_put_u8(skb, IFLA_BRPORT_MAB, !!(p->flags & BR_PORT_MAB)) ||
+ nla_put_u8(skb, IFLA_BRPORT_NEIGH_VLAN_SUPPRESS,
+ !!(p->flags & BR_NEIGH_VLAN_SUPPRESS)))
return -EMSGSIZE;
timerval = br_timer_value(&p->message_age_timer);
@@ -891,6 +894,7 @@ static const struct nla_policy br_port_policy[IFLA_BRPORT_MAX + 1] = {
[IFLA_BRPORT_MCAST_EHT_HOSTS_LIMIT] = { .type = NLA_U32 },
[IFLA_BRPORT_MCAST_N_GROUPS] = { .type = NLA_REJECT },
[IFLA_BRPORT_MCAST_MAX_GROUPS] = { .type = NLA_U32 },
+ [IFLA_BRPORT_NEIGH_VLAN_SUPPRESS] = NLA_POLICY_MAX(NLA_U8, 1),
};
/* Change the state of the port and notify spanning tree */
@@ -957,6 +961,8 @@ static int br_setport(struct net_bridge_port *p, struct nlattr *tb[],
br_set_port_flag(p, tb, IFLA_BRPORT_ISOLATED, BR_ISOLATED);
br_set_port_flag(p, tb, IFLA_BRPORT_LOCKED, BR_PORT_LOCKED);
br_set_port_flag(p, tb, IFLA_BRPORT_MAB, BR_PORT_MAB);
+ br_set_port_flag(p, tb, IFLA_BRPORT_NEIGH_VLAN_SUPPRESS,
+ BR_NEIGH_VLAN_SUPPRESS);
if ((p->flags & BR_PORT_MAB) &&
(!(p->flags & BR_PORT_LOCKED) || !(p->flags & BR_LEARNING))) {