diff options
| -rw-r--r-- | net/wireless/nl80211.c | 94 |
1 files changed, 78 insertions, 16 deletions
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c index 304b3d568e0..241bddd0b4f 100644 --- a/net/wireless/nl80211.c +++ b/net/wireless/nl80211.c @@ -1687,14 +1687,52 @@ static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info) if (err) goto out_rtnl; - if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP && - dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN && - dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) { - err = -EINVAL; + err = get_vlan(info->attrs[NL80211_ATTR_STA_VLAN], drv, ¶ms.vlan); + if (err) goto out; + + /* validate settings */ + err = 0; + + switch (dev->ieee80211_ptr->iftype) { + case NL80211_IFTYPE_AP: + case NL80211_IFTYPE_AP_VLAN: + /* disallow mesh-specific things */ + if (params.plink_action) + err = -EINVAL; + break; + case NL80211_IFTYPE_STATION: + /* disallow everything but AUTHORIZED flag */ + if (params.plink_action) + err = -EINVAL; + if (params.vlan) + err = -EINVAL; + if (params.supported_rates) + err = -EINVAL; + if (params.ht_capa) + err = -EINVAL; + if (params.listen_interval >= 0) + err = -EINVAL; + if (params.sta_flags_mask & ~BIT(NL80211_STA_FLAG_AUTHORIZED)) + err = -EINVAL; + break; + case NL80211_IFTYPE_MESH_POINT: + /* disallow things mesh doesn't support */ + if (params.vlan) + err = -EINVAL; + if (params.ht_capa) + err = -EINVAL; + if (params.listen_interval >= 0) + err = -EINVAL; + if (params.supported_rates) + err = -EINVAL; + if (params.sta_flags_mask) + err = -EINVAL; + break; + default: + err = -EINVAL; } - err = get_vlan(info->attrs[NL80211_ATTR_STA_VLAN], drv, ¶ms.vlan); if (err) goto out; @@ -1729,9 +1767,6 @@ static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info) 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; @@ -1746,9 +1781,11 @@ static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info) params.listen_interval = nla_get_u16(info->attrs[NL80211_ATTR_STA_LISTEN_INTERVAL]); - params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]); - if (!params.aid || params.aid > IEEE80211_MAX_AID) - return -EINVAL; + if (info->attrs[NL80211_ATTR_STA_AID]) { + params.aid = nla_get_u16(info->attrs[NL80211_ATTR_STA_AID]); + if (!params.aid || params.aid > IEEE80211_MAX_AID) + return -EINVAL; + } if (info->attrs[NL80211_ATTR_HT_CAPABILITY]) params.ht_capa = @@ -1763,14 +1800,39 @@ static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info) if (err) goto out_rtnl; - if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP && - dev->ieee80211_ptr->iftype != NL80211_IFTYPE_AP_VLAN && - dev->ieee80211_ptr->iftype != NL80211_IFTYPE_MESH_POINT) { - err = -EINVAL; + err = get_vlan(info->attrs[NL80211_ATTR_STA_VLAN], drv, ¶ms.vlan); + if (err) goto out; + + /* validate settings */ + err = 0; + + switch (dev->ieee80211_ptr->iftype) { + case NL80211_IFTYPE_AP: + case NL80211_IFTYPE_AP_VLAN: + /* all ok but must have AID */ + if (!params.aid) + err = -EINVAL; + break; + case NL80211_IFTYPE_MESH_POINT: + /* disallow things mesh doesn't support */ + if (params.vlan) + err = -EINVAL; + if (params.aid) + err = -EINVAL; + if (params.ht_capa) + err = -EINVAL; + if (params.listen_interval >= 0) + err = -EINVAL; + if (params.supported_rates) + err = -EINVAL; + if (params.sta_flags_mask) + err = -EINVAL; + break; + default: + err = -EINVAL; } - err = get_vlan(info->attrs[NL80211_ATTR_STA_VLAN], drv, ¶ms.vlan); if (err) goto out; |