diff options
Diffstat (limited to 'net/bridge/br_private.h')
| -rw-r--r-- | net/bridge/br_private.h | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/net/bridge/br_private.h b/net/bridge/br_private.h index f540f3bdf294..dbc0089e2c1a 100644 --- a/net/bridge/br_private.h +++ b/net/bridge/br_private.h @@ -507,6 +507,37 @@ static inline bool nbp_state_should_learn(const struct net_bridge_port *p) return p->state == BR_STATE_LEARNING || p->state == BR_STATE_FORWARDING; } +static inline bool br_vlan_valid_id(u16 vid) +{ + return vid > 0 && vid < VLAN_VID_MASK; +} + +static inline bool br_vlan_valid_range(const struct bridge_vlan_info *cur, + const struct bridge_vlan_info *last) +{ + /* pvid flag is not allowed in ranges */ + if (cur->flags & BRIDGE_VLAN_INFO_PVID) + return false; + + /* check for required range flags */ + if (!(cur->flags & (BRIDGE_VLAN_INFO_RANGE_BEGIN | + BRIDGE_VLAN_INFO_RANGE_END))) + return false; + + /* when cur is the range end, check if: + * - it has range start flag + * - range ids are invalid (end is equal to or before start) + */ + if (last) { + if (cur->flags & BRIDGE_VLAN_INFO_RANGE_BEGIN) + return false; + else if (cur->vid <= last->vid) + return false; + } + + return true; +} + static inline int br_opt_get(const struct net_bridge *br, enum net_bridge_opts opt) { |