diff options
Diffstat (limited to 'package/mac80211/patches/024-nl80211-get-sta.patch')
| -rw-r--r-- | package/mac80211/patches/024-nl80211-get-sta.patch | 208 |
1 files changed, 208 insertions, 0 deletions
diff --git a/package/mac80211/patches/024-nl80211-get-sta.patch b/package/mac80211/patches/024-nl80211-get-sta.patch new file mode 100644 index 0000000000..198ad1876b --- /dev/null +++ b/package/mac80211/patches/024-nl80211-get-sta.patch @@ -0,0 +1,208 @@ +Subject: cfg80211/nl80211: implement station attribute retrieval + +After a station is added to the kernel's structures, userspace +has to be able to retrieve statistics about that station, especially +whether the station was idle and how much bytes were transferred +to and from it. This adds the necessary code to nl80211. + +Signed-off-by: Johannes Berg <johannes@sipsolutions.net> + +--- + include/linux/nl80211.h | 28 ++++++++++++++++ + include/net/cfg80211.h | 35 ++++++++++++++++++++ + net/wireless/nl80211.c | 82 +++++++++++++++++++++++++++++++++++++++++++++++- + 3 files changed, 144 insertions(+), 1 deletion(-) + +--- everything.orig/include/linux/nl80211.h 2007-11-08 17:15:15.961529840 +0100 ++++ everything/include/linux/nl80211.h 2007-11-08 17:17:00.891547364 +0100 +@@ -157,6 +157,9 @@ enum nl80211_commands { + * 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_STA_STATS: statistics for a station, part of station info ++ * given for %NL80211_CMD_GET_STATION, nested attribute containing ++ * info as possible, see &enum nl80211_sta_stats. + * + * @NL80211_ATTR_MAX: highest attribute number currently defined + * @__NL80211_ATTR_AFTER_LAST: internal use +@@ -190,6 +193,7 @@ enum nl80211_attrs { + NL80211_ATTR_STA_LISTEN_INTERVAL, + NL80211_ATTR_STA_SUPPORTED_RATES, + NL80211_ATTR_STA_VLAN, ++ NL80211_ATTR_STA_STATS, + + /* add attributes here, update the policy in nl80211.c */ + +@@ -252,4 +256,28 @@ enum nl80211_sta_flags { + NL80211_STA_FLAG_MAX = __NL80211_STA_FLAG_AFTER_LAST - 1 + }; + ++/** ++ * enum nl80211_sta_stats - station statistics ++ * ++ * These attribute types are used with %NL80211_ATTR_STA_STATS ++ * when getting information about a station. ++ * ++ * @__NL80211_STA_STAT_INVALID: attribute number 0 is reserved ++ * @NL80211_STA_STAT_INACTIVE_TIME: time since last activity (u32, msecs) ++ * @NL80211_STA_STAT_RX_BYTES: total received bytes (u32, from this station) ++ * @NL80211_STA_STAT_TX_BYTES: total transmitted bytes (u32, to this station) ++ * @__NL80211_STA_STAT_AFTER_LAST: internal ++ * @NL80211_STA_STAT_MAX: highest possible station stats attribute ++ */ ++enum nl80211_sta_stats { ++ __NL80211_STA_STAT_INVALID, ++ NL80211_STA_STAT_INACTIVE_TIME, ++ NL80211_STA_STAT_RX_BYTES, ++ NL80211_STA_STAT_TX_BYTES, ++ ++ /* keep last */ ++ __NL80211_STA_STAT_AFTER_LAST, ++ NL80211_STA_STAT_MAX = __NL80211_STA_STAT_AFTER_LAST - 1 ++}; ++ + #endif /* __LINUX_NL80211_H */ +--- everything.orig/include/net/cfg80211.h 2007-11-08 17:15:15.971532444 +0100 ++++ everything/include/net/cfg80211.h 2007-11-08 17:17:00.891547364 +0100 +@@ -130,6 +130,39 @@ struct station_parameters { + u8 supported_rates_len; + }; + ++/** ++ * enum station_stats_flags - station statistics flags ++ * ++ * Used by the driver to indicate which info in &struct station_stats ++ * it has filled in during get_station(). ++ * ++ * @STATION_STAT_INACTIVE_TIME: @inactive_time filled ++ * @STATION_STAT_RX_BYTES: @rx_bytes filled ++ * @STATION_STAT_TX_BYTES: @tx_bytes filled ++ */ ++enum station_stats_flags { ++ STATION_STAT_INACTIVE_TIME = 1<<0, ++ STATION_STAT_RX_BYTES = 1<<1, ++ STATION_STAT_TX_BYTES = 1<<2, ++}; ++ ++/** ++ * struct station_stats - station statistics ++ * ++ * Station information filled by driver for get_station(). ++ * ++ * @filled: bitflag of flags from &enum station_stats_flags ++ * @inactive_time: time since last station activity (tx/rx) in milliseconds ++ * @rx_bytes: bytes received from this station ++ * @tx_bytes: bytes transmitted to this station ++ */ ++struct station_stats { ++ u32 filled; ++ u32 inactive_time; ++ u32 rx_bytes; ++ u32 tx_bytes; ++}; ++ + /* from net/wireless.h */ + struct wiphy; + +@@ -209,6 +242,8 @@ struct cfg80211_ops { + u8 *mac); + int (*change_station)(struct wiphy *wiphy, struct net_device *dev, + u8 *mac, struct station_parameters *params); ++ int (*get_station)(struct wiphy *wiphy, struct net_device *dev, ++ u8 *mac, struct station_stats *stats); + }; + + #endif /* __NET_CFG80211_H */ +--- everything.orig/net/wireless/nl80211.c 2007-11-08 17:15:15.981533909 +0100 ++++ everything/net/wireless/nl80211.c 2007-11-08 17:17:00.901534235 +0100 +@@ -751,9 +751,89 @@ static int parse_station_flags(struct nl + return 0; + } + ++static int nl80211_send_station(struct sk_buff *msg, u32 pid, u32 seq, ++ int flags, struct net_device *dev, ++ u8 *mac_addr, struct station_stats *stats) ++{ ++ void *hdr; ++ struct nlattr *statsattr; ++ ++ hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION); ++ if (!hdr) ++ return -1; ++ ++ NLA_PUT_U32(msg, NL80211_ATTR_IFINDEX, dev->ifindex); ++ NLA_PUT(msg, NL80211_ATTR_MAC, ETH_ALEN, mac_addr); ++ ++ statsattr = nla_nest_start(msg, NL80211_ATTR_STA_STATS); ++ if (!statsattr) ++ goto nla_put_failure; ++ if (stats->filled & STATION_STAT_INACTIVE_TIME) ++ NLA_PUT_U32(msg, NL80211_STA_STAT_INACTIVE_TIME, ++ stats->inactive_time); ++ if (stats->filled & STATION_STAT_RX_BYTES) ++ NLA_PUT_U32(msg, NL80211_STA_STAT_RX_BYTES, ++ stats->rx_bytes); ++ if (stats->filled & STATION_STAT_TX_BYTES) ++ NLA_PUT_U32(msg, NL80211_STA_STAT_TX_BYTES, ++ stats->tx_bytes); ++ ++ nla_nest_end(msg, statsattr); ++ ++ return genlmsg_end(msg, hdr); ++ ++ nla_put_failure: ++ return genlmsg_cancel(msg, hdr); ++} ++ ++ + static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info) + { +- return -EOPNOTSUPP; ++ struct cfg80211_registered_device *drv; ++ int err; ++ struct net_device *dev; ++ struct station_stats stats; ++ struct sk_buff *msg; ++ u8 *mac_addr = NULL; ++ ++ memset(&stats, 0, sizeof(stats)); ++ ++ if (!info->attrs[NL80211_ATTR_MAC]) ++ return -EINVAL; ++ ++ 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->get_station) { ++ err = -EOPNOTSUPP; ++ goto out; ++ } ++ ++ rtnl_lock(); ++ err = drv->ops->get_station(&drv->wiphy, dev, mac_addr, &stats); ++ rtnl_unlock(); ++ ++ msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); ++ if (!msg) ++ goto out; ++ ++ if (nl80211_send_station(msg, info->snd_pid, info->snd_seq, 0, ++ dev, mac_addr, &stats) < 0) ++ goto out_free; ++ ++ err = genlmsg_unicast(msg, info->snd_pid); ++ goto out; ++ ++ out_free: ++ nlmsg_free(msg); ++ ++ out: ++ cfg80211_put_dev(drv); ++ dev_put(dev); ++ return err; + } + + /* |