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| author | Jakub Kicinski <jakub.kicinski@netronome.com> | 2019-01-18 21:46:13 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2019-01-19 21:09:58 +0300 |
| commit | 59c28058fa7bb1cc7ab8b2c5607093cbbefafeb4 (patch) | |
| tree | 18e5719ebf19cdd5432ead16a2425f60719fa1fe /net/netlink/af_netlink.c | |
| parent | 133bbb18ab1a2f5549435c5a3126413344ddbcb8 (diff) | |
| download | linux-59c28058fa7bb1cc7ab8b2c5607093cbbefafeb4.tar.xz | |
net: netlink: add helper to retrieve NETLINK_F_STRICT_CHK
Dumps can read state of the NETLINK_F_STRICT_CHK flag from
a field in the callback structure. For non-dump GET requests
we need a way to access the state of that flag from a socket.
Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/netlink/af_netlink.c')
| -rw-r--r-- | net/netlink/af_netlink.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/net/netlink/af_netlink.c b/net/netlink/af_netlink.c index 3c023d6120f6..8fa35df94c07 100644 --- a/net/netlink/af_netlink.c +++ b/net/netlink/af_netlink.c @@ -1371,6 +1371,14 @@ int netlink_has_listeners(struct sock *sk, unsigned int group) } EXPORT_SYMBOL_GPL(netlink_has_listeners); +bool netlink_strict_get_check(struct sk_buff *skb) +{ + const struct netlink_sock *nlk = nlk_sk(NETLINK_CB(skb).sk); + + return nlk->flags & NETLINK_F_STRICT_CHK; +} +EXPORT_SYMBOL_GPL(netlink_strict_get_check); + static int netlink_broadcast_deliver(struct sock *sk, struct sk_buff *skb) { struct netlink_sock *nlk = nlk_sk(sk); |