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cfg80211: add netlink channel put helper 

This adds a netlink channel put helper, nl80211_msg_put_channel(),
which we will also make use of later for the beacon hints events.

Acked-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Luis R. Rodriguez 2009-04-02 14:08:08 -04:00 committed by John W. Linville
parent a4ed90d60c
commit 5dab3b8a68
1 changed files with 26 additions and 13 deletions
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39
net/wireless/nl80211.c
View File

@ -156,6 +156,30 @@ static inline void *nl80211hdr_put(struct sk_buff *skb, u32 pid, u32 seq,
return genlmsg_put(skb, pid, seq, &nl80211_fam, flags, cmd);
}
static int nl80211_msg_put_channel(struct sk_buff *msg,
struct ieee80211_channel *chan)
{
NLA_PUT_U32(msg, NL80211_FREQUENCY_ATTR_FREQ,
chan->center_freq);
if (chan->flags & IEEE80211_CHAN_DISABLED)
NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_DISABLED);
if (chan->flags & IEEE80211_CHAN_PASSIVE_SCAN)
NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_PASSIVE_SCAN);
if (chan->flags & IEEE80211_CHAN_NO_IBSS)
NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_NO_IBSS);
if (chan->flags & IEEE80211_CHAN_RADAR)
NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_RADAR);
NLA_PUT_U32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
DBM_TO_MBM(chan->max_power));
return 0;
nla_put_failure:
return -ENOBUFS;
}
/* netlink command implementations */
static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags,
@ -234,20 +258,9 @@ static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags,
goto nla_put_failure;
chan = &dev->wiphy.bands[band]->channels[i];
NLA_PUT_U32(msg, NL80211_FREQUENCY_ATTR_FREQ,
chan->center_freq);
if (chan->flags & IEEE80211_CHAN_DISABLED)
NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_DISABLED);
if (chan->flags & IEEE80211_CHAN_PASSIVE_SCAN)
NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_PASSIVE_SCAN);
if (chan->flags & IEEE80211_CHAN_NO_IBSS)
NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_NO_IBSS);
if (chan->flags & IEEE80211_CHAN_RADAR)
NLA_PUT_FLAG(msg, NL80211_FREQUENCY_ATTR_RADAR);
NLA_PUT_U32(msg, NL80211_FREQUENCY_ATTR_MAX_TX_POWER,
DBM_TO_MBM(chan->max_power));
if (nl80211_msg_put_channel(msg, chan))
goto nla_put_failure;
nla_nest_end(msg, nl_freq);
}