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net: bridge: vlan: add rtm definitions and dump support

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This patch adds vlan rtm definitions:
 - NEWVLAN: to be used for creating vlans, setting options and
   notifications
 - DELVLAN: to be used for deleting vlans
 - GETVLAN: used for dumping vlan information

Dumping vlans which can span multiple messages is added now with basic
information (vid and flags). We use nlmsg_parse() to validate the header
length in order to be able to extend the message with filtering
attributes later.

Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Nikolay Aleksandrov
2020-01-14 19:56:09 +02:00
committed by David S. Miller
parent 8f4cc940a1
commit 8dcea18708
6 changed files with 203 additions and 1 deletions
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14
net/bridge/br_private.h
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@@ -958,6 +958,8 @@ void br_vlan_get_stats(const struct net_bridge_vlan *v,
void br_vlan_port_event(struct net_bridge_port *p, unsigned long event);
int br_vlan_bridge_event(struct net_device *dev, unsigned long event,
void *ptr);
void br_vlan_rtnl_init(void);
void br_vlan_rtnl_uninit(void);
static inline struct net_bridge_vlan_group *br_vlan_group(
const struct net_bridge *br)
@@ -1009,6 +1011,10 @@ static inline u16 br_get_pvid(const struct net_bridge_vlan_group *vg)
return vg->pvid;
}
static inline u16 br_vlan_flags(const struct net_bridge_vlan *v, u16 pvid)
{
return v->vid == pvid ? v->flags | BRIDGE_VLAN_INFO_PVID : v->flags;
}
#else
static inline bool br_allowed_ingress(const struct net_bridge *br,
struct net_bridge_vlan_group *vg,
@@ -1152,6 +1158,14 @@ static inline int br_vlan_bridge_event(struct net_device *dev,
{
return 0;
}
static inline void br_vlan_rtnl_init(void)
{
}
static inline void br_vlan_rtnl_uninit(void)
{
}
#endif
struct nf_br_ops {