diff options
Diffstat (limited to 'net/wireless')
| -rw-r--r-- | net/wireless/nl80211.c | 438 |
1 files changed, 416 insertions, 22 deletions
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c index 5b3474798b8..64a7460af73 100644 --- a/net/wireless/nl80211.c +++ b/net/wireless/nl80211.c @@ -81,8 +81,12 @@ static struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] __read_mostly = { [NL80211_ATTR_STA_LISTEN_INTERVAL] = { .type = NLA_U16 }, [NL80211_ATTR_STA_SUPPORTED_RATES] = { .type = NLA_BINARY, .len = NL80211_MAX_SUPP_RATES }, + [NL80211_ATTR_STA_PLINK_ACTION] = { .type = NLA_U8 }, [NL80211_ATTR_STA_VLAN] = { .type = NLA_U32 }, [NL80211_ATTR_MNTR_FLAGS] = { .type = NLA_NESTED }, + [NL80211_ATTR_MESH_ID] = { .type = NLA_BINARY, + .len = IEEE80211_MAX_MESH_ID_LEN }, + [NL80211_ATTR_MPATH_NEXT_HOP] = { .type = NLA_U32 }, }; /* message building helper */ @@ -369,11 +373,14 @@ static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags) static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info) { struct cfg80211_registered_device *drv; + struct vif_params params; int err, ifindex; enum nl80211_iftype type; struct net_device *dev; u32 flags; + memset(¶ms, 0, sizeof(params)); + if (info->attrs[NL80211_ATTR_IFTYPE]) { type = nla_get_u32(info->attrs[NL80211_ATTR_IFTYPE]); if (type > NL80211_IFTYPE_MAX) @@ -392,12 +399,18 @@ static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info) goto unlock; } + if (type == NL80211_IFTYPE_MESH_POINT && + info->attrs[NL80211_ATTR_MESH_ID]) { + params.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]); + params.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]); + } + rtnl_lock(); err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ? info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL, &flags); err = drv->ops->change_virtual_intf(&drv->wiphy, ifindex, - type, err ? NULL : &flags); + type, err ? NULL : &flags, ¶ms); rtnl_unlock(); unlock: @@ -408,10 +421,13 @@ static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info) static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info) { struct cfg80211_registered_device *drv; + struct vif_params params; int err; enum nl80211_iftype type = NL80211_IFTYPE_UNSPECIFIED; u32 flags; + memset(¶ms, 0, sizeof(params)); + if (!info->attrs[NL80211_ATTR_IFNAME]) return -EINVAL; @@ -430,15 +446,22 @@ static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info) goto unlock; } + if (type == NL80211_IFTYPE_MESH_POINT && + info->attrs[NL80211_ATTR_MESH_ID]) { + params.mesh_id = nla_data(info->attrs[NL80211_ATTR_MESH_ID]); + params.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]); + } + rtnl_lock(); err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ? info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL, &flags); err = drv->ops->add_virtual_intf(&drv->wiphy, nla_data(info->attrs[NL80211_ATTR_IFNAME]), - type, err ? NULL : &flags); + type, err ? NULL : &flags, ¶ms); rtnl_unlock(); + unlock: cfg80211_put_dev(drv); return err; @@ -866,10 +889,10 @@ static int parse_station_flags(struct nlattr *nla, u32 *staflags) 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) + u8 *mac_addr, struct station_info *sinfo) { void *hdr; - struct nlattr *statsattr; + struct nlattr *sinfoattr; hdr = nl80211hdr_put(msg, pid, seq, flags, NL80211_CMD_NEW_STATION); if (!hdr) @@ -878,20 +901,29 @@ static int nl80211_send_station(struct sk_buff *msg, u32 pid, u32 seq, 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) + sinfoattr = nla_nest_start(msg, NL80211_ATTR_STA_INFO); + if (!sinfoattr) 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); + if (sinfo->filled & STATION_INFO_INACTIVE_TIME) + NLA_PUT_U32(msg, NL80211_STA_INFO_INACTIVE_TIME, + sinfo->inactive_time); + if (sinfo->filled & STATION_INFO_RX_BYTES) + NLA_PUT_U32(msg, NL80211_STA_INFO_RX_BYTES, + sinfo->rx_bytes); + if (sinfo->filled & STATION_INFO_TX_BYTES) + NLA_PUT_U32(msg, NL80211_STA_INFO_TX_BYTES, + sinfo->tx_bytes); + if (sinfo->filled & STATION_INFO_LLID) + NLA_PUT_U16(msg, NL80211_STA_INFO_LLID, + sinfo->llid); + if (sinfo->filled & STATION_INFO_PLID) + NLA_PUT_U16(msg, NL80211_STA_INFO_PLID, + sinfo->plid); + if (sinfo->filled & STATION_INFO_PLINK_STATE) + NLA_PUT_U8(msg, NL80211_STA_INFO_PLINK_STATE, + sinfo->plink_state); + + nla_nest_end(msg, sinfoattr); return genlmsg_end(msg, hdr); @@ -899,17 +931,80 @@ static int nl80211_send_station(struct sk_buff *msg, u32 pid, u32 seq, return genlmsg_cancel(msg, hdr); } +static int nl80211_dump_station(struct sk_buff *skb, + struct netlink_callback *cb) +{ + int wp_idx = 0; + int if_idx = 0; + int sta_idx = cb->args[2]; + int wp_start = cb->args[0]; + int if_start = cb->args[1]; + struct station_info sinfo; + struct cfg80211_registered_device *dev; + struct wireless_dev *wdev; + u8 mac_addr[ETH_ALEN]; + int err; + int exit = 0; + + /* TODO: filter by device */ + mutex_lock(&cfg80211_drv_mutex); + list_for_each_entry(dev, &cfg80211_drv_list, list) { + if (exit) + break; + if (++wp_idx < wp_start) + continue; + if_idx = 0; + + mutex_lock(&dev->devlist_mtx); + list_for_each_entry(wdev, &dev->netdev_list, list) { + if (exit) + break; + if (++if_idx < if_start) + continue; + if (!dev->ops->dump_station) + continue; + + for (;; ++sta_idx) { + rtnl_lock(); + err = dev->ops->dump_station(&dev->wiphy, + wdev->netdev, sta_idx, mac_addr, + &sinfo); + rtnl_unlock(); + if (err) { + sta_idx = 0; + break; + } + if (nl80211_send_station(skb, + NETLINK_CB(cb->skb).pid, + cb->nlh->nlmsg_seq, NLM_F_MULTI, + wdev->netdev, mac_addr, + &sinfo) < 0) { + exit = 1; + break; + } + } + } + mutex_unlock(&dev->devlist_mtx); + } + mutex_unlock(&cfg80211_drv_mutex); + + cb->args[0] = wp_idx; + cb->args[1] = if_idx; + cb->args[2] = sta_idx; + + return skb->len; +} static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info) { struct cfg80211_registered_device *drv; int err; struct net_device *dev; - struct station_stats stats; + struct station_info sinfo; struct sk_buff *msg; u8 *mac_addr = NULL; - memset(&stats, 0, sizeof(stats)); + memset(&sinfo, 0, sizeof(sinfo)); if (!info->attrs[NL80211_ATTR_MAC]) return -EINVAL; @@ -926,15 +1021,18 @@ static int nl80211_get_station(struct sk_buff *skb, struct genl_info *info) } rtnl_lock(); - err = drv->ops->get_station(&drv->wiphy, dev, mac_addr, &stats); + err = drv->ops->get_station(&drv->wiphy, dev, mac_addr, &sinfo); rtnl_unlock(); + if (err) + goto out; + 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) + dev, mac_addr, &sinfo) < 0) goto out_free; err = genlmsg_unicast(msg, info->snd_pid); @@ -1005,6 +1103,10 @@ static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info) ¶ms.station_flags)) return -EINVAL; + if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) + params.plink_action = + nla_get_u8(info->attrs[NL80211_ATTR_STA_PLINK_ACTION]); + err = get_drv_dev_by_info_ifindex(info, &drv, &dev); if (err) return err; @@ -1119,6 +1221,273 @@ static int nl80211_del_station(struct sk_buff *skb, struct genl_info *info) return err; } +static int nl80211_send_mpath(struct sk_buff *msg, u32 pid, u32 seq, + int flags, struct net_device *dev, + u8 *dst, u8 *next_hop, + struct mpath_info *pinfo) +{ + void *hdr; + struct nlattr *pinfoattr; + + 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, dst); + NLA_PUT(msg, NL80211_ATTR_MPATH_NEXT_HOP, ETH_ALEN, next_hop); + + pinfoattr = nla_nest_start(msg, NL80211_ATTR_MPATH_INFO); + if (!pinfoattr) + goto nla_put_failure; + if (pinfo->filled & MPATH_INFO_FRAME_QLEN) + NLA_PUT_U32(msg, NL80211_MPATH_INFO_FRAME_QLEN, + pinfo->frame_qlen); + if (pinfo->filled & MPATH_INFO_DSN) + NLA_PUT_U32(msg, NL80211_MPATH_INFO_DSN, + pinfo->dsn); + if (pinfo->filled & MPATH_INFO_METRIC) + NLA_PUT_U32(msg, NL80211_MPATH_INFO_METRIC, + pinfo->metric); + if (pinfo->filled & MPATH_INFO_EXPTIME) + NLA_PUT_U32(msg, NL80211_MPATH_INFO_EXPTIME, + pinfo->exptime); + if (pinfo->filled & MPATH_INFO_FLAGS) + NLA_PUT_U8(msg, NL80211_MPATH_INFO_FLAGS, + pinfo->flags); + if (pinfo->filled & MPATH_INFO_DISCOVERY_TIMEOUT) + NLA_PUT_U32(msg, NL80211_MPATH_INFO_DISCOVERY_TIMEOUT, + pinfo->discovery_timeout); + if (pinfo->filled & MPATH_INFO_DISCOVERY_RETRIES) + NLA_PUT_U8(msg, NL80211_MPATH_INFO_DISCOVERY_RETRIES, + pinfo->discovery_retries); + + nla_nest_end(msg, pinfoattr); + + return genlmsg_end(msg, hdr); + + nla_put_failure: + return genlmsg_cancel(msg, hdr); +} + +static int nl80211_dump_mpath(struct sk_buff *skb, + struct netlink_callback *cb) +{ + int wp_idx = 0; + int if_idx = 0; + int sta_idx = cb->args[2]; + int wp_start = cb->args[0]; + int if_start = cb->args[1]; + struct mpath_info pinfo; + struct cfg80211_registered_device *dev; + struct wireless_dev *wdev; + u8 dst[ETH_ALEN]; + u8 next_hop[ETH_ALEN]; + int err; + int exit = 0; + + /* TODO: filter by device */ + mutex_lock(&cfg80211_drv_mutex); + list_for_each_entry(dev, &cfg80211_drv_list, list) { + if (exit) + break; + if (++wp_idx < wp_start) + continue; + if_idx = 0; + + mutex_lock(&dev->devlist_mtx); + list_for_each_entry(wdev, &dev->netdev_list, list) { + if (exit) + break; + if (++if_idx < if_start) + continue; + if (!dev->ops->dump_mpath) + continue; + + for (;; ++sta_idx) { + rtnl_lock(); + err = dev->ops->dump_mpath(&dev->wiphy, + wdev->netdev, sta_idx, dst, + next_hop, &pinfo); + rtnl_unlock(); + if (err) { + sta_idx = 0; + break; + } + if (nl80211_send_mpath(skb, + NETLINK_CB(cb->skb).pid, + cb->nlh->nlmsg_seq, NLM_F_MULTI, + wdev->netdev, dst, next_hop, + &pinfo) < 0) { + exit = 1; + break; + } + } + } + mutex_unlock(&dev->devlist_mtx); + } + mutex_unlock(&cfg80211_drv_mutex); + + cb->args[0] = wp_idx; + cb->args[1] = if_idx; + cb->args[2] = sta_idx; + + return skb->len; +} + +static int nl80211_get_mpath(struct sk_buff *skb, struct genl_info *info) +{ + struct cfg80211_registered_device *drv; + int err; + struct net_device *dev; + struct mpath_info pinfo; + struct sk_buff *msg; + u8 *dst = NULL; + u8 next_hop[ETH_ALEN]; + + memset(&pinfo, 0, sizeof(pinfo)); + + if (!info->attrs[NL80211_ATTR_MAC]) + return -EINVAL; + + dst = 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_mpath) { + err = -EOPNOTSUPP; + goto out; + } + + rtnl_lock(); + err = drv->ops->get_mpath(&drv->wiphy, dev, dst, next_hop, &pinfo); + rtnl_unlock(); + + if (err) + goto out; + + msg = nlmsg_new(NLMSG_GOODSIZE, GFP_KERNEL); + if (!msg) + goto out; + + if (nl80211_send_mpath(msg, info->snd_pid, info->snd_seq, 0, + dev, dst, next_hop, &pinfo) < 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; +} + +static int nl80211_set_mpath(struct sk_buff *skb, struct genl_info *info) +{ + struct cfg80211_registered_device *drv; + int err; + struct net_device *dev; + u8 *dst = NULL; + u8 *next_hop = NULL; + + if (!info->attrs[NL80211_ATTR_MAC]) + return -EINVAL; + + if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]) + return -EINVAL; + + dst = nla_data(info->attrs[NL80211_ATTR_MAC]); + next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]); + + err = get_drv_dev_by_info_ifindex(info, &drv, &dev); + if (err) + return err; + + if (!drv->ops->change_mpath) { + err = -EOPNOTSUPP; + goto out; + } + + rtnl_lock(); + err = drv->ops->change_mpath(&drv->wiphy, dev, dst, next_hop); + rtnl_unlock(); + + out: + cfg80211_put_dev(drv); + dev_put(dev); + return err; +} +static int nl80211_new_mpath(struct sk_buff *skb, struct genl_info *info) +{ + struct cfg80211_registered_device *drv; + int err; + struct net_device *dev; + u8 *dst = NULL; + u8 *next_hop = NULL; + + if (!info->attrs[NL80211_ATTR_MAC]) + return -EINVAL; + + if (!info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]) + return -EINVAL; + + dst = nla_data(info->attrs[NL80211_ATTR_MAC]); + next_hop = nla_data(info->attrs[NL80211_ATTR_MPATH_NEXT_HOP]); + + err = get_drv_dev_by_info_ifindex(info, &drv, &dev); + if (err) + return err; + + if (!drv->ops->add_mpath) { + err = -EOPNOTSUPP; + goto out; + } + + rtnl_lock(); + err = drv->ops->add_mpath(&drv->wiphy, dev, dst, next_hop); + rtnl_unlock(); + + out: + cfg80211_put_dev(drv); + dev_put(dev); + return err; +} + +static int nl80211_del_mpath(struct sk_buff *skb, struct genl_info *info) +{ + struct cfg80211_registered_device *drv; + int err; + struct net_device *dev; + u8 *dst = NULL; + + if (info->attrs[NL80211_ATTR_MAC]) + dst = 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_mpath) { + err = -EOPNOTSUPP; + goto out; + } + + rtnl_lock(); + err = drv->ops->del_mpath(&drv->wiphy, dev, dst); + rtnl_unlock(); + + out: + cfg80211_put_dev(drv); + dev_put(dev); + return err; +} + static struct genl_ops nl80211_ops[] = { { .cmd = NL80211_CMD_GET_WIPHY, @@ -1203,7 +1572,7 @@ static struct genl_ops nl80211_ops[] = { { .cmd = NL80211_CMD_GET_STATION, .doit = nl80211_get_station, - /* TODO: implement dumpit */ + .dumpit = nl80211_dump_station, .policy = nl80211_policy, .flags = GENL_ADMIN_PERM, }, @@ -1225,6 +1594,31 @@ static struct genl_ops nl80211_ops[] = { .policy = nl80211_policy, .flags = GENL_ADMIN_PERM, }, + { + .cmd = NL80211_CMD_GET_MPATH, + .doit = nl80211_get_mpath, + .dumpit = nl80211_dump_mpath, + .policy = nl80211_policy, + .flags = GENL_ADMIN_PERM, + }, + { + .cmd = NL80211_CMD_SET_MPATH, + .doit = nl80211_set_mpath, + .policy = nl80211_policy, + .flags = GENL_ADMIN_PERM, + }, + { + .cmd = NL80211_CMD_NEW_MPATH, + .doit = nl80211_new_mpath, + .policy = nl80211_policy, + .flags = GENL_ADMIN_PERM, + }, + { + .cmd = NL80211_CMD_DEL_MPATH, + .doit = nl80211_del_mpath, + .policy = nl80211_policy, + .flags = GENL_ADMIN_PERM, + }, }; /* multicast groups */ |