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-rw-r--r--package/mac80211/patches/022-nl80211-sta.patch464
1 files changed, 464 insertions, 0 deletions
diff --git a/package/mac80211/patches/022-nl80211-sta.patch b/package/mac80211/patches/022-nl80211-sta.patch
new file mode 100644
index 0000000..4d08721
--- /dev/null
+++ b/package/mac80211/patches/022-nl80211-sta.patch
@@ -0,0 +1,464 @@
+Subject: cfg80211/nl80211: station handling
+
+This patch adds station handling to cfg80211/nl80211.
+
+Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
+
+---
+ include/linux/nl80211.h | 68 +++++++++++++
+ include/net/cfg80211.h | 54 ++++++++++
+ net/wireless/nl80211.c | 236 ++++++++++++++++++++++++++++++++++++++++++++++++
+ 3 files changed, 358 insertions(+)
+
+--- everything.orig/include/linux/nl80211.h 2007-11-08 16:56:32.431522732 +0100
++++ everything/include/linux/nl80211.h 2007-11-08 17:15:15.961529840 +0100
+@@ -7,6 +7,18 @@
+ */
+
+ /**
++ * DOC: Station handling
++ *
++ * Stations are added per interface, but a special case exists with VLAN
++ * interfaces. When a station is bound to an AP interface, it may be moved
++ * into a VLAN identified by a VLAN interface index (%NL80211_ATTR_STA_VLAN).
++ * The station is still assumed to belong to the AP interface it was added
++ * to.
++ *
++ * TODO: need more info?
++ */
++
++/**
+ * enum nl80211_commands - supported nl80211 commands
+ *
+ * @NL80211_CMD_UNSPEC: unspecified command to catch errors
+@@ -56,6 +68,16 @@
+ * parameters are like for %NL80211_CMD_SET_BEACON.
+ * @NL80211_CMD_DEL_BEACON: remove the beacon, stop sending it
+ *
++ * @NL80211_CMD_GET_STATION: Get station attributes for station identified by
++ * %NL80211_ATTR_MAC on the interface identified by %NL80211_ATTR_IFINDEX.
++ * @NL80211_CMD_SET_STATION: Set station attributes for station identified by
++ * %NL80211_ATTR_MAC on the interface identified by %NL80211_ATTR_IFINDEX.
++ * @NL80211_CMD_NEW_STATION: Add a station with given attributes to the
++ * the interface identified by %NL80211_ATTR_IFINDEX.
++ * @NL80211_CMD_DEL_STATION: Remove a station identified by %NL80211_ATTR_MAC
++ * or, if no MAC address given, all stations, on the interface identified
++ * by %NL80211_ATTR_IFINDEX.
++ *
+ * @NL80211_CMD_MAX: highest used command number
+ * @__NL80211_CMD_AFTER_LAST: internal use
+ */
+@@ -83,6 +105,11 @@ enum nl80211_commands {
+ NL80211_CMD_NEW_BEACON,
+ NL80211_CMD_DEL_BEACON,
+
++ NL80211_CMD_GET_STATION,
++ NL80211_CMD_SET_STATION,
++ NL80211_CMD_NEW_STATION,
++ NL80211_CMD_DEL_STATION,
++
+ /* add commands here */
+
+ /* used to define NL80211_CMD_MAX below */
+@@ -120,6 +147,17 @@ enum nl80211_commands {
+ * @NL80211_ATTR_BEACON_HEAD: portion of the beacon before the TIM IE
+ * @NL80211_ATTR_BEACON_TAIL: portion of the beacon after the TIM IE
+ *
++ * @NL80211_ATTR_STA_AID: Association ID for the station (u16)
++ * @NL80211_ATTR_STA_FLAGS: flags, nested element with NLA_FLAG attributes of
++ * &enum nl80211_sta_flags.
++ * @NL80211_ATTR_STA_LISTEN_INTERVAL: listen interval as defined by
++ * IEEE 802.11 7.3.1.6 (u16).
++ * @NL80211_ATTR_STA_SUPPORTED_RATES: supported rates, array of supported
++ * rates as defined by IEEE 802.11 7.3.2.2 but without the length
++ * restriction (at most %NL80211_MAX_SUPP_RATES).
++ * @NL80211_ATTR_STA_VLAN: interface index of VLAN interface to move station
++ * to, or the AP interface the station was originally added to to.
++ *
+ * @NL80211_ATTR_MAX: highest attribute number currently defined
+ * @__NL80211_ATTR_AFTER_LAST: internal use
+ */
+@@ -147,12 +185,20 @@ enum nl80211_attrs {
+ NL80211_ATTR_BEACON_HEAD,
+ NL80211_ATTR_BEACON_TAIL,
+
++ NL80211_ATTR_STA_AID,
++ NL80211_ATTR_STA_FLAGS,
++ NL80211_ATTR_STA_LISTEN_INTERVAL,
++ NL80211_ATTR_STA_SUPPORTED_RATES,
++ NL80211_ATTR_STA_VLAN,
++
+ /* add attributes here, update the policy in nl80211.c */
+
+ __NL80211_ATTR_AFTER_LAST,
+ NL80211_ATTR_MAX = __NL80211_ATTR_AFTER_LAST - 1
+ };
+
++#define NL80211_MAX_SUPP_RATES 32
++
+ /**
+ * enum nl80211_iftype - (virtual) interface types
+ *
+@@ -184,4 +230,26 @@ enum nl80211_iftype {
+ NL80211_IFTYPE_MAX = __NL80211_IFTYPE_AFTER_LAST - 1
+ };
+
++/**
++ * enum nl80211_sta_flags - station flags
++ *
++ * Station flags. When a station is added to an AP interface, it is
++ * assumed to be already associated (and hence authenticated.)
++ *
++ * @NL80211_STA_FLAG_AUTHORIZED: station is authorized (802.1X)
++ * @NL80211_STA_FLAG_SHORT_PREAMBLE: station is capable of receiving frames
++ * with short barker preamble
++ * @NL80211_STA_FLAG_WME: station is WME/QoS capable
++ */
++enum nl80211_sta_flags {
++ __NL80211_STA_FLAG_INVALID,
++ NL80211_STA_FLAG_AUTHORIZED,
++ NL80211_STA_FLAG_SHORT_PREAMBLE,
++ NL80211_STA_FLAG_WME,
++
++ /* keep last */
++ __NL80211_STA_FLAG_AFTER_LAST,
++ NL80211_STA_FLAG_MAX = __NL80211_STA_FLAG_AFTER_LAST - 1
++};
++
+ #endif /* __LINUX_NL80211_H */
+--- everything.orig/include/net/cfg80211.h 2007-11-08 16:50:38.421522842 +0100
++++ everything/include/net/cfg80211.h 2007-11-08 17:15:15.971532444 +0100
+@@ -89,6 +89,47 @@ struct beacon_parameters {
+ int head_len, tail_len;
+ };
+
++/**
++ * enum station_flags - station flags
++ *
++ * Station capability flags. Note that these must be the bits
++ * according to the nl80211 flags.
++ *
++ * @STATION_FLAG_CHANGED: station flags were changed
++ * @STATION_FLAG_AUTHORIZED: station is authorized to send frames (802.1X)
++ * @STATION_FLAG_SHORT_PREAMBLE: station is capable of receiving frames
++ * with short preambles
++ * @STATION_FLAG_WME: station is WME/QoS capable
++ */
++enum station_flags {
++ STATION_FLAG_CHANGED = 1<<0,
++ STATION_FLAG_AUTHORIZED = 1<<NL80211_STA_FLAG_AUTHORIZED,
++ STATION_FLAG_SHORT_PREAMBLE = 1<<NL80211_STA_FLAG_SHORT_PREAMBLE,
++ STATION_FLAG_WME = 1<<NL80211_STA_FLAG_WME,
++};
++
++/**
++ * struct station_parameters - station parameters
++ *
++ * Used to change and create a new station.
++ *
++ * @vlan: vlan interface station should belong to
++ * @supported_rates: supported rates in IEEE 802.11 format
++ * (or NULL for no change)
++ * @supported_rates_len: number of supported rates
++ * @station_flags: station flags (see &enum station_flags)
++ * @listen_interval: listen interval or -1 for no change
++ * @aid: AID or zero for no change
++ */
++struct station_parameters {
++ u8 *supported_rates;
++ struct net_device *vlan;
++ u32 station_flags;
++ int listen_interval;
++ u16 aid;
++ u8 supported_rates_len;
++};
++
+ /* from net/wireless.h */
+ struct wiphy;
+
+@@ -130,6 +171,12 @@ struct wiphy;
+ * interface. This should reject the call when no beacon has been
+ * configured.
+ * @del_beacon: Remove beacon configuration and stop sending the beacon.
++ *
++ * @add_station: Add a new station.
++ *
++ * @del_station: Remove a station; @mac may be NULL to remove all stations.
++ *
++ * @change_station: Modify a given station.
+ */
+ struct cfg80211_ops {
+ int (*add_virtual_intf)(struct wiphy *wiphy, char *name,
+@@ -155,6 +202,13 @@ struct cfg80211_ops {
+ int (*set_beacon)(struct wiphy *wiphy, struct net_device *dev,
+ struct beacon_parameters *info);
+ int (*del_beacon)(struct wiphy *wiphy, struct net_device *dev);
++
++ int (*add_station)(struct wiphy *wiphy, struct net_device *dev,
++ u8 *mac, struct station_parameters *params);
++ int (*del_station)(struct wiphy *wiphy, struct net_device *dev,
++ u8 *mac);
++ int (*change_station)(struct wiphy *wiphy, struct net_device *dev,
++ u8 *mac, struct station_parameters *params);
+ };
+
+ #endif /* __NET_CFG80211_H */
+--- everything.orig/net/wireless/nl80211.c 2007-11-08 16:58:36.711524524 +0100
++++ everything/net/wireless/nl80211.c 2007-11-08 17:15:15.981533909 +0100
+@@ -76,6 +76,12 @@ static struct nla_policy nl80211_policy[
+ .len = IEEE80211_MAX_DATA_LEN },
+ [NL80211_ATTR_BEACON_TAIL] = { .type = NLA_BINARY,
+ .len = IEEE80211_MAX_DATA_LEN },
++ [NL80211_ATTR_STA_AID] = { .type = NLA_U16 },
++ [NL80211_ATTR_STA_FLAGS] = { .type = NLA_NESTED },
++ [NL80211_ATTR_STA_LISTEN_INTERVAL] = { .type = NLA_U16 },
++ [NL80211_ATTR_STA_SUPPORTED_RATES] = { .type = NLA_BINARY,
++ .len = NL80211_MAX_SUPP_RATES },
++ [NL80211_ATTR_STA_VLAN] = { .type = NLA_U32 },
+ };
+
+ /* message building helper */
+@@ -715,6 +721,211 @@ static int nl80211_del_beacon(struct sk_
+ return err;
+ }
+
++static
++struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] __read_mostly = {
++ [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG },
++ [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG },
++ [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG },
++};
++
++static int parse_station_flags(struct nlattr *nla, u32 *staflags)
++{
++ struct nlattr *flags[NL80211_STA_FLAG_MAX + 1];
++ int flag;
++
++ *staflags = 0;
++
++ if (!nla)
++ return 0;
++
++ if (nla_parse_nested(flags, NL80211_STA_FLAG_MAX,
++ nla, sta_flags_policy))
++ return -EINVAL;
++
++ *staflags = STATION_FLAG_CHANGED;
++
++ for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++)
++ if (flags[flag])
++ *staflags |= (1<<flag);
++
++ return 0;
++}
++
++static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info)
++{
++ return -EOPNOTSUPP;
++}
++
++/*
++ * Get vlan interface making sure it is on the right wiphy.
++ */
++static int get_vlan(struct nlattr *vlanattr,
++ struct cfg80211_registered_device *rdev,
++ struct net_device **vlan)
++{
++ *vlan = NULL;
++
++ if (vlanattr) {
++ *vlan = dev_get_by_index(nla_get_u32(vlanattr));
++ if (!*vlan)
++ return -ENODEV;
++ if (!(*vlan)->ieee80211_ptr)
++ return -EINVAL;
++ if ((*vlan)->ieee80211_ptr->wiphy != &rdev->wiphy)
++ return -EINVAL;
++ }
++ return 0;
++}
++
++static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info)
++{
++ struct cfg80211_registered_device *drv;
++ int err;
++ struct net_device *dev;
++ struct station_parameters params;
++ u8 *mac_addr = NULL;
++
++ memset(&params, 0, sizeof(params));
++
++ params.listen_interval = -1;
++
++ if (info->attrs[NL80211_ATTR_STA_AID])
++ return -EINVAL;
++
++ if (!info->attrs[NL80211_ATTR_MAC])
++ return -EINVAL;
++
++ mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
++
++ if (info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]) {
++ params.supported_rates =
++ nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
++ params.supported_rates_len =
++ nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
++ }
++
++ if (info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
++ params.listen_interval =
++ nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
++
++ if (parse_station_flags(info->attrs[NL80211_ATTR_STA_FLAGS],
++ &params.station_flags))
++ return -EINVAL;
++
++ err = get_drv_dev_by_info_ifindex(info, &drv, &dev);
++ if (err)
++ return err;
++
++ err = get_vlan(info->attrs[NL80211_ATTR_STA_VLAN], drv, &params.vlan);
++ if (err)
++ goto out;
++
++ if (!drv->ops->change_station) {
++ err = -EOPNOTSUPP;
++ goto out;
++ }
++
++ rtnl_lock();
++ err = drv->ops->change_station(&drv->wiphy, dev, mac_addr, &params);
++ rtnl_unlock();
++
++ out:
++ if (params.vlan)
++ dev_put(params.vlan);
++ cfg80211_put_dev(drv);
++ dev_put(dev);
++ return err;
++}
++
++static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info)
++{
++ struct cfg80211_registered_device *drv;
++ int err;
++ struct net_device *dev;
++ struct station_parameters params;
++ u8 *mac_addr = NULL;
++
++ memset(&params, 0, sizeof(params));
++
++ if (!info->attrs[NL80211_ATTR_MAC])
++ return -EINVAL;
++
++ if (!info->attrs[NL80211_ATTR_STA_AID])
++ return -EINVAL;
++
++ if (!info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL])
++ return -EINVAL;
++
++ if (!info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES])
++ return -EINVAL;
++
++ mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
++ params.supported_rates =
++ nla_data(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
++ params.supported_rates_len =
++ nla_len(info->attrs[NL80211_ATTR_STA_SUPPORTED_RATES]);
++ params.listen_interval =
++ nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]);
++ params.listen_interval = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]);
++
++ if (parse_station_flags(info->attrs[NL80211_ATTR_STA_FLAGS],
++ &params.station_flags))
++ return -EINVAL;
++
++ err = get_drv_dev_by_info_ifindex(info, &drv, &dev);
++ if (err)
++ return err;
++
++ err = get_vlan(info->attrs[NL80211_ATTR_STA_VLAN], drv, &params.vlan);
++ if (err)
++ goto out;
++
++ if (!drv->ops->add_station) {
++ err = -EOPNOTSUPP;
++ goto out;
++ }
++
++ rtnl_lock();
++ err = drv->ops->add_station(&drv->wiphy, dev, mac_addr, &params);
++ rtnl_unlock();
++
++ out:
++ if (params.vlan)
++ dev_put(params.vlan);
++ cfg80211_put_dev(drv);
++ dev_put(dev);
++ return err;
++}
++
++static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info)
++{
++ struct cfg80211_registered_device *drv;
++ int err;
++ struct net_device *dev;
++ u8 *mac_addr = NULL;
++
++ if (info->attrs[NL80211_ATTR_MAC])
++ mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]);
++
++ err = get_drv_dev_by_info_ifindex(info, &drv, &dev);
++ if (err)
++ return err;
++
++ if (!drv->ops->del_station) {
++ err = -EOPNOTSUPP;
++ goto out;
++ }
++
++ rtnl_lock();
++ err = drv->ops->del_station(&drv->wiphy, dev, mac_addr);
++ rtnl_unlock();
++
++ out:
++ cfg80211_put_dev(drv);
++ dev_put(dev);
++ return err;
++}
++
+ static struct genl_ops nl80211_ops[] = {
+ {
+ .cmd = NL80211_CMD_GET_WIPHY,
+@@ -796,6 +1007,31 @@ static struct genl_ops nl80211_ops[] = {
+ .flags = GENL_ADMIN_PERM,
+ .doit = nl80211_del_beacon,
+ },
++ {
++ .cmd = NL80211_CMD_GET_STATION,
++ .doit = nl80211_get_station,
++ /* TODO: implement dumpit */
++ .policy = nl80211_policy,
++ .flags = GENL_ADMIN_PERM,
++ },
++ {
++ .cmd = NL80211_CMD_SET_STATION,
++ .doit = nl80211_set_station,
++ .policy = nl80211_policy,
++ .flags = GENL_ADMIN_PERM,
++ },
++ {
++ .cmd = NL80211_CMD_NEW_STATION,
++ .doit = nl80211_new_station,
++ .policy = nl80211_policy,
++ .flags = GENL_ADMIN_PERM,
++ },
++ {
++ .cmd = NL80211_CMD_DEL_STATION,
++ .doit = nl80211_del_station,
++ .policy = nl80211_policy,
++ .flags = GENL_ADMIN_PERM,
++ },
+ };
+
+ /* multicast groups */