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ieee802154: add two nl802154 helpers

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Add two nl802154 helpers: one for starting a reply message, one for sending.

Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
This commit is contained in:
Dmitry Eremin-Solenikov 2009-11-04 18:05:38 +03:00
parent 405cd39f33
commit 339b4ca5f6
2 changed files with 38 additions and 0 deletions
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5
net/ieee802154/ieee802154.h
View file

@ -38,8 +38,13 @@ void __exit ieee802154_nl_exit(void);
.dumpit = _dump, \ .dumpit = _dump, \
} }
struct genl_info;
struct sk_buff *ieee802154_nl_create(int flags, u8 req); struct sk_buff *ieee802154_nl_create(int flags, u8 req);
int ieee802154_nl_mcast(struct sk_buff *msg, unsigned int group); int ieee802154_nl_mcast(struct sk_buff *msg, unsigned int group);
struct sk_buff *ieee802154_nl_new_reply(struct genl_info *info,
int flags, u8 req);
int ieee802154_nl_reply(struct sk_buff *msg, struct genl_info *info);
extern struct genl_family nl802154_family; extern struct genl_family nl802154_family;
int nl802154_mac_register(void); int nl802154_mac_register(void);

33
net/ieee802154/netlink.c
View file

@ -75,6 +75,39 @@ out:
return -ENOBUFS; return -ENOBUFS;
} }
struct sk_buff *ieee802154_nl_new_reply(struct genl_info *info,
int flags, u8 req)
{
void *hdr;
struct sk_buff *msg = nlmsg_new(NLMSG_GOODSIZE, GFP_ATOMIC);
if (!msg)
return NULL;
hdr = genlmsg_put_reply(msg, info,
&nl802154_family, flags, req);
if (!hdr) {
nlmsg_free(msg);
return NULL;
}
return msg;
}
int ieee802154_nl_reply(struct sk_buff *msg, struct genl_info *info)
{
/* XXX: nlh is right at the start of msg */
void *hdr = genlmsg_data(NLMSG_DATA(msg->data));
if (genlmsg_end(msg, hdr) < 0)
goto out;
return genlmsg_reply(msg, info);
out:
nlmsg_free(msg);
return -ENOBUFS;
}
int __init ieee802154_nl_init(void) int __init ieee802154_nl_init(void)
{ {
int rc; int rc;