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| author | Ido Schimmel <idosch@nvidia.com> | 2023-04-19 18:34:58 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2023-04-21 08:25:50 +0100 |
| commit | 83f6d600796c65ab34b08dbddb5795099dfda4d1 (patch) | |
| tree | d5005e5626fc3056fdd009099ff1347ffcfb3987 /net/bridge | |
| parent | 412614b1457af278b00152f3804af5481c6c55ac (diff) | |
| download | linux-stable-83f6d600796c65ab34b08dbddb5795099dfda4d1.tar.gz linux-stable-83f6d600796c65ab34b08dbddb5795099dfda4d1.tar.bz2 linux-stable-83f6d600796c65ab34b08dbddb5795099dfda4d1.zip | |
bridge: vlan: Allow setting VLAN neighbor suppression state
Add a new VLAN attribute that allows user space to set the neighbor
suppression state of the port VLAN. Example:
# bridge -d -j -p vlan show dev swp1 vid 10 | jq '.[]["vlans"][]["neigh_suppress"]'
false
# bridge vlan set vid 10 dev swp1 neigh_suppress on
# bridge -d -j -p vlan show dev swp1 vid 10 | jq '.[]["vlans"][]["neigh_suppress"]'
true
# bridge vlan set vid 10 dev swp1 neigh_suppress off
# bridge -d -j -p vlan show dev swp1 vid 10 | jq '.[]["vlans"][]["neigh_suppress"]'
false
# bridge vlan set vid 10 dev br0 neigh_suppress on
Error: bridge: Can't set neigh_suppress for non-port vlans.
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_vlan.c | 1 | ||||
| -rw-r--r-- | net/bridge/br_vlan_options.c | 20 |
2 files changed, 20 insertions, 1 deletions
diff --git a/net/bridge/br_vlan.c b/net/bridge/br_vlan.c index 8a3dbc09ba38..15f44d026e75 100644 --- a/net/bridge/br_vlan.c +++ b/net/bridge/br_vlan.c @@ -2134,6 +2134,7 @@ static const struct nla_policy br_vlan_db_policy[BRIDGE_VLANDB_ENTRY_MAX + 1] = [BRIDGE_VLANDB_ENTRY_MCAST_ROUTER] = { .type = NLA_U8 }, [BRIDGE_VLANDB_ENTRY_MCAST_N_GROUPS] = { .type = NLA_REJECT }, [BRIDGE_VLANDB_ENTRY_MCAST_MAX_GROUPS] = { .type = NLA_U32 }, + [BRIDGE_VLANDB_ENTRY_NEIGH_SUPPRESS] = NLA_POLICY_MAX(NLA_U8, 1), }; static int br_vlan_rtm_process_one(struct net_device *dev, diff --git a/net/bridge/br_vlan_options.c b/net/bridge/br_vlan_options.c index e378c2f3a9e2..8fa89b04ee94 100644 --- a/net/bridge/br_vlan_options.c +++ b/net/bridge/br_vlan_options.c @@ -52,7 +52,9 @@ bool br_vlan_opts_fill(struct sk_buff *skb, const struct net_bridge_vlan *v, const struct net_bridge_port *p) { if (nla_put_u8(skb, BRIDGE_VLANDB_ENTRY_STATE, br_vlan_get_state(v)) || - !__vlan_tun_put(skb, v)) + !__vlan_tun_put(skb, v) || + nla_put_u8(skb, BRIDGE_VLANDB_ENTRY_NEIGH_SUPPRESS, + !!(v->priv_flags & BR_VLFLAG_NEIGH_SUPPRESS_ENABLED))) return false; #ifdef CONFIG_BRIDGE_IGMP_SNOOPING @@ -80,6 +82,7 @@ size_t br_vlan_opts_nl_size(void) + nla_total_size(sizeof(u32)) /* BRIDGE_VLANDB_ENTRY_MCAST_N_GROUPS */ + nla_total_size(sizeof(u32)) /* BRIDGE_VLANDB_ENTRY_MCAST_MAX_GROUPS */ #endif + + nla_total_size(sizeof(u8)) /* BRIDGE_VLANDB_ENTRY_NEIGH_SUPPRESS */ + 0; } @@ -239,6 +242,21 @@ static int br_vlan_process_one_opts(const struct net_bridge *br, } #endif + if (tb[BRIDGE_VLANDB_ENTRY_NEIGH_SUPPRESS]) { + bool enabled = v->priv_flags & BR_VLFLAG_NEIGH_SUPPRESS_ENABLED; + bool val = nla_get_u8(tb[BRIDGE_VLANDB_ENTRY_NEIGH_SUPPRESS]); + + if (!p) { + NL_SET_ERR_MSG_MOD(extack, "Can't set neigh_suppress for non-port vlans"); + return -EINVAL; + } + + if (val != enabled) { + v->priv_flags ^= BR_VLFLAG_NEIGH_SUPPRESS_ENABLED; + *changed = true; + } + } + return 0; } |