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authorPatrick McHardy <kaber@trash.net>2013-04-17 10:47:02 +0400
committerDavid S. Miller <davem@davemloft.net>2013-04-19 22:57:57 +0400
commit9652e931e73be7e54a9c40e9bcd4bbdafe92a406 (patch)
treeb943a75e53e22e9dcdb26558d971ac25af566a02 /include/linux/netlink.h
parentccdfcc398594ddf3f77348c5a10938dbe9efefbe (diff)
downloadlinux-9652e931e73be7e54a9c40e9bcd4bbdafe92a406.tar.xz
netlink: add mmap'ed netlink helper functions
Add helper functions for looking up mmap'ed frame headers, reading and writing their status, allocating skbs with mmap'ed data areas and a poll function. Signed-off-by: Patrick McHardy <kaber@trash.net> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/linux/netlink.h')
-rw-r--r--include/linux/netlink.h7
1 files changed, 7 insertions, 0 deletions
diff --git a/include/linux/netlink.h b/include/linux/netlink.h
index d8e9264ae04a..07c473848dbd 100644
--- a/include/linux/netlink.h
+++ b/include/linux/netlink.h
@@ -15,10 +15,17 @@ static inline struct nlmsghdr *nlmsg_hdr(const struct sk_buff *skb)
return (struct nlmsghdr *)skb->data;
}
+enum netlink_skb_flags {
+ NETLINK_SKB_MMAPED = 0x1, /* Packet data is mmaped */
+ NETLINK_SKB_TX = 0x2, /* Packet was sent by userspace */
+ NETLINK_SKB_DELIVERED = 0x4, /* Packet was delivered */
+};
+
struct netlink_skb_parms {
struct scm_creds creds; /* Skb credentials */
__u32 portid;
__u32 dst_group;
+ __u32 flags;
struct sock *sk;
};