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nl80211: add support for SAE authentication offload

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Let drivers advertise support for station-mode SAE authentication
offload with a new NL80211_EXT_FEATURE_SAE_OFFLOAD flag.

Signed-off-by: Chung-Hsien Hsu <stanley.hsu@cypress.com>
Signed-off-by: Chi-Hsien Lin <chi-hsien.lin@cypress.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Chung-Hsien Hsu
2019-05-09 09:49:06 +00:00
committed by Johannes Berg
parent cc3e14c21a
commit 26f7044e95
4 changed files with 39 additions and 0 deletions
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14
net/wireless/nl80211.c
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@@ -571,6 +571,8 @@ const struct nla_policy nl80211_policy[NUM_NL80211_ATTR] = {
[NL80211_ATTR_PEER_MEASUREMENTS] =
NLA_POLICY_NESTED(nl80211_pmsr_attr_policy),
[NL80211_ATTR_AIRTIME_WEIGHT] = NLA_POLICY_MIN(NLA_U16, 1),
[NL80211_ATTR_SAE_PASSWORD] = { .type = NLA_BINARY,
.len = SAE_PASSWORD_MAX_LEN },
};
/* policy for the key attributes */
@@ -4434,6 +4436,8 @@ static bool nl80211_valid_auth_type(struct cfg80211_registered_device *rdev,
return true;
case NL80211_CMD_CONNECT:
if (!(rdev->wiphy.features & NL80211_FEATURE_SAE) &&
!wiphy_ext_feature_isset(&rdev->wiphy,
NL80211_EXT_FEATURE_SAE_OFFLOAD) &&
auth_type == NL80211_AUTHTYPE_SAE)
return false;
@@ -8973,6 +8977,16 @@ static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev,
settings->psk = nla_data(info->attrs[NL80211_ATTR_PMK]);
}
if (info->attrs[NL80211_ATTR_SAE_PASSWORD]) {
if (!wiphy_ext_feature_isset(&rdev->wiphy,
NL80211_EXT_FEATURE_SAE_OFFLOAD))
return -EINVAL;
settings->sae_pwd =
nla_data(info->attrs[NL80211_ATTR_SAE_PASSWORD]);
settings->sae_pwd_len =
nla_len(info->attrs[NL80211_ATTR_SAE_PASSWORD]);
}
return 0;
}