cfg80211: allow changing port control protocol
Some vendor specified mechanisms for 802.1X-style
functionality use a different protocol than EAP
(even if EAP is vendor-extensible). Allow setting
the ethertype for the protocol when a driver has
support for this. The default if unspecified is
EAP, of course.
Note: This is suitable only for station mode, not
for AP implementation.
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Juuso Oikarinen <juuso.oikarinen@nokia.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index 49f5ca3..85a23de 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -136,6 +136,8 @@
.len = sizeof(struct nl80211_sta_flag_update),
},
[NL80211_ATTR_CONTROL_PORT] = { .type = NLA_FLAG },
+ [NL80211_ATTR_CONTROL_PORT_ETHERTYPE] = { .type = NLA_U16 },
+ [NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT] = { .type = NLA_FLAG },
[NL80211_ATTR_PRIVACY] = { .type = NLA_FLAG },
[NL80211_ATTR_CIPHER_SUITE_GROUP] = { .type = NLA_U32 },
[NL80211_ATTR_WPA_VERSIONS] = { .type = NLA_U32 },
@@ -474,6 +476,9 @@
NLA_PUT_U8(msg, NL80211_ATTR_MAX_NUM_PMKIDS,
dev->wiphy.max_num_pmkids);
+ if (dev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL)
+ NLA_PUT_FLAG(msg, NL80211_ATTR_CONTROL_PORT_ETHERTYPE);
+
nl_modes = nla_nest_start(msg, NL80211_ATTR_SUPPORTED_IFTYPES);
if (!nl_modes)
goto nla_put_failure;
@@ -3691,7 +3696,8 @@
return err;
}
-static int nl80211_crypto_settings(struct genl_info *info,
+static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
+ struct genl_info *info,
struct cfg80211_crypto_settings *settings,
int cipher_limit)
{
@@ -3699,6 +3705,19 @@
settings->control_port = info->attrs[NL80211_ATTR_CONTROL_PORT];
+ if (info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]) {
+ u16 proto;
+ proto = nla_get_u16(
+ info->attrs[NL80211_ATTR_CONTROL_PORT_ETHERTYPE]);
+ settings->control_port_ethertype = cpu_to_be16(proto);
+ if (!(rdev->wiphy.flags & WIPHY_FLAG_CONTROL_PORT_PROTOCOL) &&
+ proto != ETH_P_PAE)
+ return -EINVAL;
+ if (info->attrs[NL80211_ATTR_CONTROL_PORT_NO_ENCRYPT])
+ settings->control_port_no_encrypt = true;
+ } else
+ settings->control_port_ethertype = cpu_to_be16(ETH_P_PAE);
+
if (info->attrs[NL80211_ATTR_CIPHER_SUITES_PAIRWISE]) {
void *data;
int len, i;
@@ -3826,7 +3845,7 @@
if (info->attrs[NL80211_ATTR_PREV_BSSID])
prev_bssid = nla_data(info->attrs[NL80211_ATTR_PREV_BSSID]);
- err = nl80211_crypto_settings(info, &crypto, 1);
+ err = nl80211_crypto_settings(rdev, info, &crypto, 1);
if (!err)
err = cfg80211_mlme_assoc(rdev, dev, chan, bssid, prev_bssid,
ssid, ssid_len, ie, ie_len, use_mfp,
@@ -4303,7 +4322,7 @@
connect.privacy = info->attrs[NL80211_ATTR_PRIVACY];
- err = nl80211_crypto_settings(info, &connect.crypto,
+ err = nl80211_crypto_settings(rdev, info, &connect.crypto,
NL80211_MAX_NR_CIPHER_SUITES);
if (err)
return err;