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| author | Balbir Singh <balbir@in.ibm.com> | 2006-07-14 00:24:39 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@g5.osdl.org> | 2006-07-14 21:53:56 -0700 |
| commit | fb0ba6bd021248b6bdc58a7b1213a55a6776a38a (patch) | |
| tree | 227944aafeecbef42df1687775bfe668d261ac6b /include/net/genetlink.h | |
| parent | 52f17b6c2bd443e7806a161e9d10a983650db01d (diff) | |
| download | blackbird-op-linux-fb0ba6bd021248b6bdc58a7b1213a55a6776a38a.tar.gz blackbird-op-linux-fb0ba6bd021248b6bdc58a7b1213a55a6776a38a.zip | |
[PATCH] per-task-delay-accounting: utilities for genetlink usage
Two utilities for simplifying usage of NETLINK_GENERIC interface.
Signed-off-by: Balbir Singh <balbir@in.ibm.com>
Signed-off-by: Shailabh Nagar <nagar@watson.ibm.com>
Cc: Jes Sorensen <jes@sgi.com>
Cc: Peter Chubb <peterc@gelato.unsw.edu.au>
Cc: Erich Focht <efocht@ess.nec.de>
Cc: Levent Serinol <lserinol@gmail.com>
Cc: Jay Lan <jlan@engr.sgi.com>
Cc: "David S. Miller" <davem@davemloft.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'include/net/genetlink.h')
| -rw-r--r-- | include/net/genetlink.h | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/include/net/genetlink.h b/include/net/genetlink.h index 805de50df00d..8c2287264266 100644 --- a/include/net/genetlink.h +++ b/include/net/genetlink.h @@ -150,4 +150,24 @@ static inline int genlmsg_unicast(struct sk_buff *skb, u32 pid) return nlmsg_unicast(genl_sock, skb, pid); } +/** + * gennlmsg_data - head of message payload + * @gnlh: genetlink messsage header + */ +static inline void *genlmsg_data(const struct genlmsghdr *gnlh) +{ + return ((unsigned char *) gnlh + GENL_HDRLEN); +} + +/** + * genlmsg_len - length of message payload + * @gnlh: genetlink message header + */ +static inline int genlmsg_len(const struct genlmsghdr *gnlh) +{ + struct nlmsghdr *nlh = (struct nlmsghdr *)((unsigned char *)gnlh - + NLMSG_HDRLEN); + return (nlh->nlmsg_len - GENL_HDRLEN - NLMSG_HDRLEN); +} + #endif /* __NET_GENERIC_NETLINK_H */ |
