mirror of
git://projects.qi-hardware.com/openwrt-xburst.git
synced 2024-12-19 18:44:40 +02:00
280 lines
7.9 KiB
Diff
280 lines
7.9 KiB
Diff
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Subject: cfg80211/nl80211: add beacon settings
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This adds the necessary API to cfg80211/nl80211 to allow
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changing beaconing settings.
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Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
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---
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include/linux/nl80211.h | 24 ++++++++
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include/net/cfg80211.h | 33 +++++++++++
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net/wireless/nl80211.c | 133 ++++++++++++++++++++++++++++++++++++++++++++++++
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3 files changed, 190 insertions(+)
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--- everything.orig/include/net/cfg80211.h 2007-11-08 11:50:57.412840007 +0100
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+++ everything/include/net/cfg80211.h 2007-11-08 16:50:38.421522842 +0100
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@@ -69,6 +69,26 @@ struct key_params {
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u32 cipher;
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};
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+/**
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+ * struct beacon_parameters - beacon parameters
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+ *
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+ * Used to configure the beacon for an interface.
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+ *
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+ * @head: head portion of beacon (before TIM IE)
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+ * or %NULL if not changed
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+ * @tail: tail portion of beacon (after TIM IE)
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+ * or %NULL if not changed
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+ * @interval: beacon interval or zero if not changed
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+ * @dtim_period: DTIM period or zero if not changed
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+ * @head_len: length of @head
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+ * @tail_len: length of @tail
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+ */
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+struct beacon_parameters {
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+ u8 *head, *tail;
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+ int interval, dtim_period;
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+ int head_len, tail_len;
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+};
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+
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/* from net/wireless.h */
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struct wiphy;
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@@ -103,6 +123,13 @@ struct wiphy;
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* and @key_index
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*
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* @set_default_key: set the default key on an interface
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+ *
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+ * @add_beacon: Add a beacon with given parameters, @head, @interval
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+ * and @dtim_period will be valid, @tail is optional.
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+ * @set_beacon: Change the beacon parameters for an access point mode
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+ * interface. This should reject the call when no beacon has been
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+ * configured.
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+ * @del_beacon: Remove beacon configuration and stop sending the beacon.
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*/
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struct cfg80211_ops {
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int (*add_virtual_intf)(struct wiphy *wiphy, char *name,
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@@ -122,6 +149,12 @@ struct cfg80211_ops {
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int (*set_default_key)(struct wiphy *wiphy,
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struct net_device *netdev,
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u8 key_index);
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+
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+ int (*add_beacon)(struct wiphy *wiphy, struct net_device *dev,
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+ struct beacon_parameters *info);
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+ int (*set_beacon)(struct wiphy *wiphy, struct net_device *dev,
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+ struct beacon_parameters *info);
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+ int (*del_beacon)(struct wiphy *wiphy, struct net_device *dev);
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};
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#endif /* __NET_CFG80211_H */
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--- everything.orig/include/linux/nl80211.h 2007-11-08 11:50:57.362839952 +0100
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+++ everything/include/linux/nl80211.h 2007-11-08 16:56:32.431522732 +0100
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@@ -47,6 +47,15 @@
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* @NL80211_CMD_DEL_KEY: delete a key identified by %NL80211_ATTR_KEY_IDX
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* or %NL80211_ATTR_MAC.
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*
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+ * @NL80211_CMD_GET_BEACON: retrieve beacon information (returned in a
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+ * %NL80222_CMD_NEW_BEACON message)
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+ * @NL80211_CMD_SET_BEACON: set the beacon on an access point interface
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+ * using the %NL80211_ATTR_BEACON_INTERVAL, %NL80211_ATTR_DTIM_PERIOD,
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+ * %NL80211_BEACON_HEAD and %NL80211_BEACON_TAIL attributes.
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+ * @NL80211_CMD_NEW_BEACON: add a new beacon to an access point interface,
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+ * parameters are like for %NL80211_CMD_SET_BEACON.
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+ * @NL80211_CMD_DEL_BEACON: remove the beacon, stop sending it
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+ *
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* @NL80211_CMD_MAX: highest used command number
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* @__NL80211_CMD_AFTER_LAST: internal use
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*/
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@@ -69,6 +78,11 @@ enum nl80211_commands {
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NL80211_CMD_NEW_KEY,
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NL80211_CMD_DEL_KEY,
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+ NL80211_CMD_GET_BEACON,
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+ NL80211_CMD_SET_BEACON,
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+ NL80211_CMD_NEW_BEACON,
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+ NL80211_CMD_DEL_BEACON,
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+
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/* add commands here */
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/* used to define NL80211_CMD_MAX below */
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@@ -101,6 +115,11 @@ enum nl80211_commands {
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* @NL80211_ATTR_KEY_SEQ: transmit key sequence number (IV/PN) for TKIP and
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* CCMP keys, each six bytes in little endian
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*
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+ * @NL80211_ATTR_BEACON_INTERVAL: beacon interval in TU
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+ * @NL80211_ATTR_DTIM_PERIOD: DTIM period for beaconing
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+ * @NL80211_ATTR_BEACON_HEAD: portion of the beacon before the TIM IE
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+ * @NL80211_ATTR_BEACON_TAIL: portion of the beacon after the TIM IE
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+ *
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* @NL80211_ATTR_MAX: highest attribute number currently defined
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* @__NL80211_ATTR_AFTER_LAST: internal use
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*/
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@@ -123,6 +142,11 @@ enum nl80211_attrs {
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NL80211_ATTR_KEY_SEQ,
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NL80211_ATTR_KEY_DEFAULT,
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+ NL80211_ATTR_BEACON_INTERVAL,
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+ NL80211_ATTR_DTIM_PERIOD,
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+ NL80211_ATTR_BEACON_HEAD,
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+ NL80211_ATTR_BEACON_TAIL,
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+
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/* add attributes here, update the policy in nl80211.c */
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__NL80211_ATTR_AFTER_LAST,
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--- everything.orig/net/wireless/nl80211.c 2007-11-08 11:50:57.382836589 +0100
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+++ everything/net/wireless/nl80211.c 2007-11-08 16:58:36.711524524 +0100
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@@ -69,6 +69,13 @@ static struct nla_policy nl80211_policy[
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[NL80211_ATTR_KEY_IDX] = { .type = NLA_U8 },
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[NL80211_ATTR_KEY_CIPHER] = { .type = NLA_U32 },
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[NL80211_ATTR_KEY_DEFAULT] = { .type = NLA_FLAG },
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+
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+ [NL80211_ATTR_BEACON_INTERVAL] = { .type = NLA_U32 },
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+ [NL80211_ATTR_DTIM_PERIOD] = { .type = NLA_U32 },
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+ [NL80211_ATTR_BEACON_HEAD] = { .type = NLA_BINARY,
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+ .len = IEEE80211_MAX_DATA_LEN },
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+ [NL80211_ATTR_BEACON_TAIL] = { .type = NLA_BINARY,
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+ .len = IEEE80211_MAX_DATA_LEN },
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};
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/* message building helper */
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@@ -600,6 +607,114 @@ static int nl80211_del_key(struct sk_buf
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return err;
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}
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+static int nl80211_addset_beacon(struct sk_buff *skb, struct genl_info *info)
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+{
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+ int (*call)(struct wiphy *wiphy, struct net_device *dev,
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+ struct beacon_parameters *info);
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+ struct cfg80211_registered_device *drv;
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+ int err;
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+ struct net_device *dev;
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+ struct beacon_parameters params;
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+ int haveinfo = 0;
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+
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+ err = get_drv_dev_by_info_ifindex(info, &drv, &dev);
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+ if (err)
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+ return err;
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+
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+ switch (info->genlhdr->cmd) {
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+ case NL80211_CMD_NEW_BEACON:
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+ /* these are required for NEW_BEACON */
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+ if (!info->attrs[NL80211_ATTR_BEACON_INTERVAL] ||
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+ !info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
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+ !info->attrs[NL80211_ATTR_BEACON_HEAD]) {
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+ err = -EINVAL;
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+ goto out;
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+ }
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+
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+ call = drv->ops->add_beacon;
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+ break;
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+ case NL80211_CMD_SET_BEACON:
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+ call = drv->ops->set_beacon;
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+ break;
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+ default:
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+ WARN_ON(1);
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+ err = -EOPNOTSUPP;
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+ goto out;
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+ }
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+
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+ if (!call) {
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+ err = -EOPNOTSUPP;
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+ goto out;
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+ }
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+
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+ memset(¶ms, 0, sizeof(params));
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+
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+ if (info->attrs[NL80211_ATTR_BEACON_INTERVAL]) {
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+ params.interval =
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+ nla_get_u32(info->attrs[NL80211_ATTR_BEACON_INTERVAL]);
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+ haveinfo = 1;
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+ }
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+
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+ if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) {
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+ params.dtim_period =
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+ nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
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+ haveinfo = 1;
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+ }
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+
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+ if (info->attrs[NL80211_ATTR_BEACON_HEAD]) {
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+ params.head = nla_data(info->attrs[NL80211_ATTR_BEACON_HEAD]);
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+ params.head_len =
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+ nla_len(info->attrs[NL80211_ATTR_BEACON_HEAD]);
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+ haveinfo = 1;
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+ }
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+
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+ if (info->attrs[NL80211_ATTR_BEACON_TAIL]) {
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+ params.tail = nla_data(info->attrs[NL80211_ATTR_BEACON_TAIL]);
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+ params.tail_len =
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+ nla_len(info->attrs[NL80211_ATTR_BEACON_TAIL]);
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+ haveinfo = 1;
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+ }
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+
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+ if (!haveinfo) {
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+ err = -EINVAL;
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+ goto out;
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+ }
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+
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+ rtnl_lock();
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+ err = call(&drv->wiphy, dev, ¶ms);
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+ rtnl_unlock();
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+
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+ out:
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+ cfg80211_put_dev(drv);
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+ dev_put(dev);
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+ return err;
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+}
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+
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+static int nl80211_del_beacon(struct sk_buff *skb, struct genl_info *info)
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+{
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+ struct cfg80211_registered_device *drv;
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+ int err;
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+ struct net_device *dev;
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+
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+ err = get_drv_dev_by_info_ifindex(info, &drv, &dev);
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+ if (err)
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+ return err;
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+
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+ if (!drv->ops->del_beacon) {
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+ err = -EOPNOTSUPP;
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+ goto out;
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+ }
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+
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+ rtnl_lock();
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+ err = drv->ops->del_beacon(&drv->wiphy, dev);
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+ rtnl_unlock();
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+
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+ out:
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+ cfg80211_put_dev(drv);
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+ dev_put(dev);
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+ return err;
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+}
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+
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static struct genl_ops nl80211_ops[] = {
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{
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.cmd = NL80211_CMD_GET_WIPHY,
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@@ -663,6 +778,24 @@ static struct genl_ops nl80211_ops[] = {
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.policy = nl80211_policy,
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.flags = GENL_ADMIN_PERM,
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},
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+ {
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+ .cmd = NL80211_CMD_SET_BEACON,
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+ .policy = nl80211_policy,
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+ .flags = GENL_ADMIN_PERM,
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+ .doit = nl80211_addset_beacon,
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+ },
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+ {
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+ .cmd = NL80211_CMD_NEW_BEACON,
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+ .policy = nl80211_policy,
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+ .flags = GENL_ADMIN_PERM,
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+ .doit = nl80211_addset_beacon,
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+ },
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+ {
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+ .cmd = NL80211_CMD_DEL_BEACON,
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+ .policy = nl80211_policy,
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+ .flags = GENL_ADMIN_PERM,
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+ .doit = nl80211_del_beacon,
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+ },
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};
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/* multicast groups */
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