diff options
Diffstat (limited to 'net/wireless/nl80211.c')
| -rw-r--r-- | net/wireless/nl80211.c | 82 |
1 files changed, 81 insertions, 1 deletions
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c index 4318351..e3a214f 100644 --- a/net/wireless/nl80211.c +++ b/net/wireless/nl80211.c @@ -750,9 +750,89 @@ static int parse_station_flags(struct nlattr *nla, u32 *staflags) 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; } /* |
