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authorJohannes Berg <johannes@sipsolutions.net>2007-12-19 02:03:32 +0100
committerDavid S. Miller <davem@davemloft.net>2008-01-28 14:59:50 -0800
commited1b6cc7f80f831e192704b05b9917f9cc37be15 (patch)
tree24a95282d3cb88c42b08a6ef1d6e9f02cce90c6e /net/wireless
parent62da92fb75c346b503bca765fd1337e08771c9fe (diff)
downloadlinux-ed1b6cc7f80f831e192704b05b9917f9cc37be15.tar.bz2
cfg80211/nl80211: add beacon settings
This adds the necessary API to cfg80211/nl80211 to allow changing beaconing settings. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/wireless')
-rw-r--r--net/wireless/nl80211.c133
1 files changed, 133 insertions, 0 deletions
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index 090936388528..306ae019ea81 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -69,6 +69,13 @@ static struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] __read_mostly = {
[NL80211_ATTR_KEY_IDX] = { .type = NLA_U8 },
[NL80211_ATTR_KEY_CIPHER] = { .type = NLA_U32 },
[NL80211_ATTR_KEY_DEFAULT] = { .type = NLA_FLAG },
+
+ [NL80211_ATTR_BEACON_INTERVAL] = { .type = NLA_U32 },
+ [NL80211_ATTR_DTIM_PERIOD] = { .type = NLA_U32 },
+ [NL80211_ATTR_BEACON_HEAD] = { .type = NLA_BINARY,
+ .len = IEEE80211_MAX_DATA_LEN },
+ [NL80211_ATTR_BEACON_TAIL] = { .type = NLA_BINARY,
+ .len = IEEE80211_MAX_DATA_LEN },
};
/* message building helper */
@@ -600,6 +607,114 @@ static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info)
return err;
}
+static int nl80211_addset_beacon(struct sk_buff *skb, struct genl_info *info)
+{
+ int (*call)(struct wiphy *wiphy, struct net_device *dev,
+ struct beacon_parameters *info);
+ struct cfg80211_registered_device *drv;
+ int err;
+ struct net_device *dev;
+ struct beacon_parameters params;
+ int haveinfo = 0;
+
+ err = get_drv_dev_by_info_ifindex(info, &drv, &dev);
+ if (err)
+ return err;
+
+ switch (info->genlhdr->cmd) {
+ case NL80211_CMD_NEW_BEACON:
+ /* these are required for NEW_BEACON */
+ if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
+ !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
+ !info->attrs[NL80211_ATTR_BEACON_HEAD]) {
+ err = -EINVAL;
+ goto out;
+ }
+
+ call = drv->ops->add_beacon;
+ break;
+ case NL80211_CMD_SET_BEACON:
+ call = drv->ops->set_beacon;
+ break;
+ default:
+ WARN_ON(1);
+ err = -EOPNOTSUPP;
+ goto out;
+ }
+
+ if (!call) {
+ err = -EOPNOTSUPP;
+ goto out;
+ }
+
+ memset(&params, 0, sizeof(params));
+
+ if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
+ params.interval =
+ nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
+ haveinfo = 1;
+ }
+
+ if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) {
+ params.dtim_period =
+ nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
+ haveinfo = 1;
+ }
+
+ if (info->attrs[NL80211_ATTR_BEACON_HEAD]) {
+ params.head = nla_data(info->attrs[NL80211_ATTR_BEACON_HEAD]);
+ params.head_len =
+ nla_len(info->attrs[NL80211_ATTR_BEACON_HEAD]);
+ haveinfo = 1;
+ }
+
+ if (info->attrs[NL80211_ATTR_BEACON_TAIL]) {
+ params.tail = nla_data(info->attrs[NL80211_ATTR_BEACON_TAIL]);
+ params.tail_len =
+ nla_len(info->attrs[NL80211_ATTR_BEACON_TAIL]);
+ haveinfo = 1;
+ }
+
+ if (!haveinfo) {
+ err = -EINVAL;
+ goto out;
+ }
+
+ rtnl_lock();
+ err = call(&drv->wiphy, dev, &params);
+ rtnl_unlock();
+
+ out:
+ cfg80211_put_dev(drv);
+ dev_put(dev);
+ return err;
+}
+
+static int nl80211_del_beacon(struct sk_buff *skb, struct genl_info *info)
+{
+ struct cfg80211_registered_device *drv;
+ int err;
+ struct net_device *dev;
+
+ err = get_drv_dev_by_info_ifindex(info, &drv, &dev);
+ if (err)
+ return err;
+
+ if (!drv->ops->del_beacon) {
+ err = -EOPNOTSUPP;
+ goto out;
+ }
+
+ rtnl_lock();
+ err = drv->ops->del_beacon(&drv->wiphy, dev);
+ rtnl_unlock();
+
+ out:
+ cfg80211_put_dev(drv);
+ dev_put(dev);
+ return err;
+}
+
static struct genl_ops nl80211_ops[] = {
{
.cmd = NL80211_CMD_GET_WIPHY,
@@ -663,6 +778,24 @@ static struct genl_ops nl80211_ops[] = {
.policy = nl80211_policy,
.flags = GENL_ADMIN_PERM,
},
+ {
+ .cmd = NL80211_CMD_SET_BEACON,
+ .policy = nl80211_policy,
+ .flags = GENL_ADMIN_PERM,
+ .doit = nl80211_addset_beacon,
+ },
+ {
+ .cmd = NL80211_CMD_NEW_BEACON,
+ .policy = nl80211_policy,
+ .flags = GENL_ADMIN_PERM,
+ .doit = nl80211_addset_beacon,
+ },
+ {
+ .cmd = NL80211_CMD_DEL_BEACON,
+ .policy = nl80211_policy,
+ .flags = GENL_ADMIN_PERM,
+ .doit = nl80211_del_beacon,
+ },
};
/* multicast groups */