Messages in this thread Patch in this message | | | Subject | [Patch 8/9] generic netlink utility functions | From | Shailabh Nagar <> | Date | Mon, 13 Mar 2006 19:55:05 -0500 |
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genetlink-utils.patch
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>
include/net/genetlink.h | 20 ++++++++++++++++++++ 1 files changed, 20 insertions(+)
Index: linux-2.6.16-rc5/include/net/genetlink.h =================================================================== --- linux-2.6.16-rc5.orig/include/net/genetlink.h 2006-03-11 07:41:32.000000000 -0500 +++ linux-2.6.16-rc5/include/net/genetlink.h 2006-03-11 07:41:41.000000000 -0500 @@ -150,4 +150,24 @@ static inline int genlmsg_unicast(struct 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 */
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