diff options
Diffstat (limited to 'net/wireless/nl80211.c')
-rw-r--r-- | net/wireless/nl80211.c | 128 |
1 files changed, 82 insertions, 46 deletions
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c index 3c53c5cbc3a9..f0fec2f49828 100644 --- a/net/wireless/nl80211.c +++ b/net/wireless/nl80211.c @@ -1,7 +1,7 @@ /* * This is the new netlink-based wireless configuration interface. * - * Copyright 2006, 2007 Johannes Berg <johannes@sipsolutions.net> + * Copyright 2006-2009 Johannes Berg <johannes@sipsolutions.net> */ #include <linux/if.h> @@ -122,6 +122,11 @@ static struct nla_policy nl80211_policy[NL80211_ATTR_MAX+1] __read_mostly = { [NL80211_ATTR_REASON_CODE] = { .type = NLA_U16 }, [NL80211_ATTR_FREQ_FIXED] = { .type = NLA_FLAG }, [NL80211_ATTR_TIMED_OUT] = { .type = NLA_FLAG }, + [NL80211_ATTR_USE_MFP] = { .type = NLA_U32 }, + [NL80211_ATTR_STA_FLAGS2] = { + .len = sizeof(struct nl80211_sta_flag_update), + }, + [NL80211_ATTR_CONTROL_PORT] = { .type = NLA_FLAG }, }; /* IE validation */ @@ -1072,6 +1077,14 @@ static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info) } err = func(&drv->wiphy, dev, key_idx); +#ifdef CONFIG_WIRELESS_EXT + if (!err) { + if (func == drv->ops->set_default_key) + dev->ieee80211_ptr->wext.default_key = key_idx; + else + dev->ieee80211_ptr->wext.default_mgmt_key = key_idx; + } +#endif out: cfg80211_put_dev(drv); @@ -1102,6 +1115,11 @@ static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info) params.key_len = nla_len(info->attrs[NL80211_ATTR_KEY_DATA]); } + if (info->attrs[NL80211_ATTR_KEY_SEQ]) { + params.seq = nla_data(info->attrs[NL80211_ATTR_KEY_SEQ]); + params.seq_len = nla_len(info->attrs[NL80211_ATTR_KEY_SEQ]); + } + if (info->attrs[NL80211_ATTR_KEY_IDX]) key_idx = nla_get_u8(info->attrs[NL80211_ATTR_KEY_IDX]); @@ -1110,44 +1128,8 @@ static int nl80211_new_key(struct sk_buff *skb, struct genl_info *info) if (info->attrs[NL80211_ATTR_MAC]) mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); - if (key_idx > 5) - return -EINVAL; - - /* - * Disallow pairwise keys with non-zero index unless it's WEP - * (because current deployments use pairwise WEP keys with - * non-zero indizes but 802.11i clearly specifies to use zero) - */ - if (mac_addr && key_idx && - params.cipher != WLAN_CIPHER_SUITE_WEP40 && - params.cipher != WLAN_CIPHER_SUITE_WEP104) - return -EINVAL; - - /* TODO: add definitions for the lengths to linux/ieee80211.h */ - switch (params.cipher) { - case WLAN_CIPHER_SUITE_WEP40: - if (params.key_len != 5) - return -EINVAL; - break; - case WLAN_CIPHER_SUITE_TKIP: - if (params.key_len != 32) - return -EINVAL; - break; - case WLAN_CIPHER_SUITE_CCMP: - if (params.key_len != 16) - return -EINVAL; - break; - case WLAN_CIPHER_SUITE_WEP104: - if (params.key_len != 13) - return -EINVAL; - break; - case WLAN_CIPHER_SUITE_AES_CMAC: - if (params.key_len != 16) - return -EINVAL; - break; - default: + if (cfg80211_validate_key_settings(¶ms, key_idx, mac_addr)) return -EINVAL; - } rtnl_lock(); @@ -1209,6 +1191,15 @@ static int nl80211_del_key(struct sk_buff *skb, struct genl_info *info) err = drv->ops->del_key(&drv->wiphy, dev, key_idx, mac_addr); +#ifdef CONFIG_WIRELESS_EXT + if (!err) { + if (key_idx == dev->ieee80211_ptr->wext.default_key) + dev->ieee80211_ptr->wext.default_key = -1; + else if (key_idx == dev->ieee80211_ptr->wext.default_mgmt_key) + dev->ieee80211_ptr->wext.default_mgmt_key = -1; + } +#endif + out: cfg80211_put_dev(drv); dev_put(dev); @@ -1349,15 +1340,36 @@ static const struct nla_policy sta_flags_policy[NL80211_STA_FLAG_MAX + 1] = { [NL80211_STA_FLAG_AUTHORIZED] = { .type = NLA_FLAG }, [NL80211_STA_FLAG_SHORT_PREAMBLE] = { .type = NLA_FLAG }, [NL80211_STA_FLAG_WME] = { .type = NLA_FLAG }, + [NL80211_STA_FLAG_MFP] = { .type = NLA_FLAG }, }; -static int parse_station_flags(struct nlattr *nla, u32 *staflags) +static int parse_station_flags(struct genl_info *info, + struct station_parameters *params) { struct nlattr *flags[NL80211_STA_FLAG_MAX + 1]; + struct nlattr *nla; int flag; - *staflags = 0; + /* + * Try parsing the new attribute first so userspace + * can specify both for older kernels. + */ + nla = info->attrs[NL80211_ATTR_STA_FLAGS2]; + if (nla) { + struct nl80211_sta_flag_update *sta_flags; + + sta_flags = nla_data(nla); + params->sta_flags_mask = sta_flags->mask; + params->sta_flags_set = sta_flags->set; + if ((params->sta_flags_mask | + params->sta_flags_set) & BIT(__NL80211_STA_FLAG_INVALID)) + return -EINVAL; + return 0; + } + + /* if present, parse the old attribute */ + nla = info->attrs[NL80211_ATTR_STA_FLAGS]; if (!nla) return 0; @@ -1365,11 +1377,12 @@ static int parse_station_flags(struct nlattr *nla, u32 *staflags) nla, sta_flags_policy)) return -EINVAL; - *staflags = STATION_FLAG_CHANGED; + params->sta_flags_mask = (1 << __NL80211_STA_FLAG_AFTER_LAST) - 1; + params->sta_flags_mask &= ~1; for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) if (flags[flag]) - *staflags |= (1<<flag); + params->sta_flags_set |= (1<<flag); return 0; } @@ -1665,8 +1678,7 @@ static int nl80211_set_station(struct sk_buff *skb, struct genl_info *info) params.ht_capa = nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]); - if (parse_station_flags(info->attrs[NL80211_ATTR_STA_FLAGS], - ¶ms.station_flags)) + if (parse_station_flags(info, ¶ms)) return -EINVAL; if (info->attrs[NL80211_ATTR_STA_PLINK_ACTION]) @@ -1735,8 +1747,7 @@ static int nl80211_new_station(struct sk_buff *skb, struct genl_info *info) params.ht_capa = nla_data(info->attrs[NL80211_ATTR_HT_CAPABILITY]); - if (parse_station_flags(info->attrs[NL80211_ATTR_STA_FLAGS], - ¶ms.station_flags)) + if (parse_station_flags(info, ¶ms)) return -EINVAL; rtnl_lock(); @@ -1745,6 +1756,12 @@ 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) { + err = -EINVAL; + goto out; + } + err = get_vlan(info->attrs[NL80211_ATTR_STA_VLAN], drv, ¶ms.vlan); if (err) goto out; @@ -1788,6 +1805,12 @@ static int nl80211_del_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) { + err = -EINVAL; + goto out; + } + if (!drv->ops->del_station) { err = -EOPNOTSUPP; goto out; @@ -3012,6 +3035,19 @@ static int nl80211_associate(struct sk_buff *skb, struct genl_info *info) req.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]); } + if (info->attrs[NL80211_ATTR_USE_MFP]) { + enum nl80211_mfp use_mfp = + nla_get_u32(info->attrs[NL80211_ATTR_USE_MFP]); + if (use_mfp == NL80211_MFP_REQUIRED) + req.use_mfp = true; + else if (use_mfp != NL80211_MFP_NO) { + err = -EINVAL; + goto out; + } + } + + req.control_port = info->attrs[NL80211_ATTR_CONTROL_PORT]; + err = drv->ops->assoc(&drv->wiphy, dev, &req); out: |