diff options
Diffstat (limited to 'net/wireless/nl80211.c')
| -rw-r--r-- | net/wireless/nl80211.c | 40 |
1 files changed, 38 insertions, 2 deletions
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c index 37264d56bac..149539ade15 100644 --- a/net/wireless/nl80211.c +++ b/net/wireless/nl80211.c @@ -561,7 +561,7 @@ static int nl80211_send_wiphy(struct sk_buff *msg, u32 pid, u32 seq, int flags, CMD(deauth, DEAUTHENTICATE); CMD(disassoc, DISASSOCIATE); CMD(join_ibss, JOIN_IBSS); - if (dev->wiphy.netnsok) { + if (dev->wiphy.flags & WIPHY_FLAG_NETNS_OK) { i++; NLA_PUT_U32(msg, i, NL80211_CMD_SET_WIPHY_NETNS); } @@ -968,6 +968,32 @@ static int parse_monitor_flags(struct nlattr *nla, u32 *mntrflags) return 0; } +static int nl80211_valid_4addr(struct cfg80211_registered_device *rdev, + struct net_device *netdev, u8 use_4addr, + enum nl80211_iftype iftype) +{ + if (!use_4addr) { + if (netdev && netdev->br_port) + return -EBUSY; + return 0; + } + + switch (iftype) { + case NL80211_IFTYPE_AP_VLAN: + if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_AP) + return 0; + break; + case NL80211_IFTYPE_STATION: + if (rdev->wiphy.flags & WIPHY_FLAG_4ADDR_STATION) + return 0; + break; + default: + break; + } + + return -EOPNOTSUPP; +} + static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info) { struct cfg80211_registered_device *rdev; @@ -1011,6 +1037,9 @@ static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info) if (info->attrs[NL80211_ATTR_4ADDR]) { params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]); change = true; + err = nl80211_valid_4addr(rdev, dev, params.use_4addr, ntype); + if (err) + goto unlock; } else { params.use_4addr = -1; } @@ -1034,6 +1063,9 @@ static int nl80211_set_interface(struct sk_buff *skb, struct genl_info *info) else err = 0; + if (!err && params.use_4addr != -1) + dev->ieee80211_ptr->use_4addr = params.use_4addr; + unlock: dev_put(dev); cfg80211_unlock_rdev(rdev); @@ -1081,8 +1113,12 @@ static int nl80211_new_interface(struct sk_buff *skb, struct genl_info *info) params.mesh_id_len = nla_len(info->attrs[NL80211_ATTR_MESH_ID]); } - if (info->attrs[NL80211_ATTR_4ADDR]) + if (info->attrs[NL80211_ATTR_4ADDR]) { params.use_4addr = !!nla_get_u8(info->attrs[NL80211_ATTR_4ADDR]); + err = nl80211_valid_4addr(rdev, NULL, params.use_4addr, type); + if (err) + goto unlock; + } err = parse_monitor_flags(type == NL80211_IFTYPE_MONITOR ? info->attrs[NL80211_ATTR_MNTR_FLAGS] : NULL, |