diff options
| author | Alexander Wetzel <alexander@wetzel-home.de> | 2019-03-19 23:34:07 +0300 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2019-04-26 14:02:11 +0300 |
| commit | 6cdd3979a2bdc16116c5b2eb09475abf54ba9e70 (patch) | |
| tree | 6802c60c4bff742ca71180029da88e561e230ba2 /net/wireless/nl80211.c | |
| parent | 092c4098f2b42b76068f73c8dd9f98c73b5eb372 (diff) | |
| download | linux-6cdd3979a2bdc16116c5b2eb09475abf54ba9e70.tar.xz | |
nl80211/cfg80211: Extended Key ID support
Add support for IEEE 802.11-2016 "Extended Key ID for Individually
Addressed Frames".
Extend cfg80211 and nl80211 to allow pairwise keys to be installed for
Rx only, enable Tx separately and allow Key ID 1 for pairwise keys.
Signed-off-by: Alexander Wetzel <alexander@wetzel-home.de>
[use NLA_POLICY_RANGE() for NL80211_KEY_MODE]
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net/wireless/nl80211.c')
| -rw-r--r-- | net/wireless/nl80211.c | 32 |
1 files changed, 28 insertions, 4 deletions
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c index 0124bab1f8a7..ab9b095f6094 100644 --- a/net/wireless/nl80211.c +++ b/net/wireless/nl80211.c @@ -553,6 +553,7 @@ static const struct nla_policy nl80211_key_policy[NL80211_KEY_MAX + 1] = { [NL80211_KEY_DEFAULT_MGMT] = { .type = NLA_FLAG }, [NL80211_KEY_TYPE] = NLA_POLICY_MAX(NLA_U32, NUM_NL80211_KEYTYPES - 1), [NL80211_KEY_DEFAULT_TYPES] = { .type = NLA_NESTED }, + [NL80211_KEY_MODE] = NLA_POLICY_RANGE(NLA_U8, 0, NL80211_KEY_SET_TX), }; /* policy for the key default flags */ @@ -967,6 +968,9 @@ static int nl80211_parse_key_new(struct genl_info *info, struct nlattr *key, k->def_multi = kdt[NL80211_KEY_DEFAULT_TYPE_MULTICAST]; } + if (tb[NL80211_KEY_MODE]) + k->p.mode = nla_get_u8(tb[NL80211_KEY_MODE]); + return 0; } @@ -3643,8 +3647,11 @@ static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info) if (key.idx < 0) return -EINVAL; - /* only support setting default key */ - if (!key.def && !key.defmgmt) + /* Only support setting default key and + * Extended Key ID action NL80211_KEY_SET_TX. + */ + if (!key.def && !key.defmgmt && + !(key.p.mode == NL80211_KEY_SET_TX)) return -EINVAL; wdev_lock(dev->ieee80211_ptr); @@ -3668,7 +3675,7 @@ static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info) #ifdef CONFIG_CFG80211_WEXT dev->ieee80211_ptr->wext.default_key = key.idx; #endif - } else { + } else if (key.defmgmt) { if (key.def_uni || !key.def_multi) { err = -EINVAL; goto out; @@ -3690,8 +3697,25 @@ static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info) #ifdef CONFIG_CFG80211_WEXT dev->ieee80211_ptr->wext.default_mgmt_key = key.idx; #endif - } + } else if (key.p.mode == NL80211_KEY_SET_TX && + wiphy_ext_feature_isset(&rdev->wiphy, + NL80211_EXT_FEATURE_EXT_KEY_ID)) { + u8 *mac_addr = NULL; + if (info->attrs[NL80211_ATTR_MAC]) + mac_addr = nla_data(info->attrs[NL80211_ATTR_MAC]); + + if (!mac_addr || key.idx < 0 || key.idx > 1) { + err = -EINVAL; + goto out; + } + + err = rdev_add_key(rdev, dev, key.idx, + NL80211_KEYTYPE_PAIRWISE, + mac_addr, &key.p); + } else { + err = -EINVAL; + } out: wdev_unlock(dev->ieee80211_ptr); |