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authorThomas Graf <tgraf@suug.ch>2006-11-14 19:46:02 -0800
committerDavid S. Miller <davem@sunset.davemloft.net>2006-12-02 21:22:42 -0800
commit17c157c889f4b07258af6bfec9e4e9dcf3c00178 (patch)
treef17be049a40b5742ca7e67094d6a7063146568d5 /include/net/genetlink.h
parent81878d27fdd297a33f3cfcf29483fe1abaf26dec (diff)
downloadop-kernel-dev-17c157c889f4b07258af6bfec9e4e9dcf3c00178.zip
op-kernel-dev-17c157c889f4b07258af6bfec9e4e9dcf3c00178.tar.gz
[GENL]: Add genlmsg_put_reply() to simplify building reply headers
By modyfing genlmsg_put() to take a genl_family and by adding genlmsg_put_reply() the process of constructing the netlink and generic netlink headers is simplified. Signed-off-by: Thomas Graf <tgraf@suug.ch> Acked-by: Paul Moore <paul.moore@hp.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net/genetlink.h')
-rw-r--r--include/net/genetlink.h31
1 files changed, 24 insertions, 7 deletions
diff --git a/include/net/genetlink.h b/include/net/genetlink.h
index 797c18b..7fd131c 100644
--- a/include/net/genetlink.h
+++ b/include/net/genetlink.h
@@ -79,34 +79,51 @@ extern struct sock *genl_sock;
* @skb: socket buffer holding the message
* @pid: netlink pid the message is addressed to
* @seq: sequence number (usually the one of the sender)
- * @type: netlink message type
- * @hdrlen: length of the user specific header
+ * @family: generic netlink family
* @flags netlink message flags
* @cmd: generic netlink command
- * @version: version
*
* Returns pointer to user specific header
*/
static inline void *genlmsg_put(struct sk_buff *skb, u32 pid, u32 seq,
- int type, int hdrlen, int flags,
- u8 cmd, u8 version)
+ struct genl_family *family, int flags, u8 cmd)
{
struct nlmsghdr *nlh;
struct genlmsghdr *hdr;
- nlh = nlmsg_put(skb, pid, seq, type, GENL_HDRLEN + hdrlen, flags);
+ nlh = nlmsg_put(skb, pid, seq, family->id, GENL_HDRLEN +
+ family->hdrsize, flags);
if (nlh == NULL)
return NULL;
hdr = nlmsg_data(nlh);
hdr->cmd = cmd;
- hdr->version = version;
+ hdr->version = family->version;
hdr->reserved = 0;
return (char *) hdr + GENL_HDRLEN;
}
/**
+ * genlmsg_put_reply - Add generic netlink header to a reply message
+ * @skb: socket buffer holding the message
+ * @info: receiver info
+ * @family: generic netlink family
+ * @flags: netlink message flags
+ * @cmd: generic netlink command
+ *
+ * Returns pointer to user specific header
+ */
+static inline void *genlmsg_put_reply(struct sk_buff *skb,
+ struct genl_info *info,
+ struct genl_family *family,
+ int flags, u8 cmd)
+{
+ return genlmsg_put(skb, info->snd_pid, info->snd_seq, family,
+ flags, cmd);
+}
+
+/**
* genlmsg_end - Finalize a generic netlink message
* @skb: socket buffer the message is stored in
* @hdr: user specific header
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