diff options
| author | Daniel Borkmann <dborkman@redhat.com> | 2013-06-21 19:38:07 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2013-06-24 16:39:05 -0700 |
| commit | bcbde0d449eda7afa8f63280b165c8300dbd00e2 (patch) | |
| tree | dbe6689bfee850c54006291e939718c685de1158 /include/linux | |
| parent | 77e2af0312b12dccd5043a7cc9cd49ab6a212996 (diff) | |
net: netlink: virtual tap device management
Similarly to the networking receive path with ptype_all taps, we add
the possibility to register netdevices that are for ARPHRD_NETLINK to
the netlink subsystem, so that those can be used for netlink analyzers
resp. debuggers. We do not offer a direct callback function as out-of-tree
modules could do crap with it. Instead, a netdevice must be registered
properly and only receives a clone, managed by the netlink layer. Symbols
are exported as GPL-only.
Signed-off-by: Daniel Borkmann <dborkman@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/netlink.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/include/linux/netlink.h b/include/linux/netlink.h index f78b430f4af5..86fde81ac2e6 100644 --- a/include/linux/netlink.h +++ b/include/linux/netlink.h @@ -145,4 +145,14 @@ static inline int netlink_dump_start(struct sock *ssk, struct sk_buff *skb, return __netlink_dump_start(ssk, skb, nlh, control); } +struct netlink_tap { + struct net_device *dev; + struct module *module; + struct list_head list; +}; + +extern int netlink_add_tap(struct netlink_tap *nt); +extern int __netlink_remove_tap(struct netlink_tap *nt); +extern int netlink_remove_tap(struct netlink_tap *nt); + #endif /* __LINUX_NETLINK_H */ |