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Commit 7b1883ce authored by Joe Stringer's avatar Joe Stringer Committed by David S. Miller
Browse files

genetlink: Add genlmsg_parse() helper function. 



The first user will be the next patch.

Signed-off-by: default avatarJoe Stringer <joestringer@nicira.com>
Acked-by: default avatarPravin B Shelar <pshelar@nicira.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 272c2cf8

include/net/genetlink.h

+17 −0
Original line number Diff line number Diff line
@@ -205,6 +205,23 @@ static inline struct nlmsghdr *genlmsg_nlhdr(void *user_hdr, 
				   NLMSG_HDRLEN);

}



/**

 * genlmsg_parse - parse attributes of a genetlink message

 * @nlh: netlink message header

 * @family: genetlink message family

 * @tb: destination array with maxtype+1 elements

 * @maxtype: maximum attribute type to be expected

 * @policy: validation policy

 * */

static inline int genlmsg_parse(const struct nlmsghdr *nlh,

				const struct genl_family *family,

				struct nlattr *tb[], int maxtype,

				const struct nla_policy *policy)

{

	return nlmsg_parse(nlh, family->hdrsize + GENL_HDRLEN, tb, maxtype,

			   policy);

}



/**

 * genl_dump_check_consistent - check if sequence is consistent and advertise if not

 * @cb: netlink callback structure that stores the sequence number