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| author | Rohan Dutta <drohan@codeaurora.org> | 2020-10-27 13:09:10 +0300 |
|---|---|---|
| committer | Johannes Berg <johannes.berg@intel.com> | 2020-11-06 12:00:04 +0300 |
| commit | 9f0ffa418483938d25a15f6ad3891389f333bc59 (patch) | |
| tree | b691febda38410cd06e1c740d9953f852e6ee08a /net | |
| parent | 8280c07e0762ba753876c427584a792e86f3f7e7 (diff) | |
| download | linux-9f0ffa418483938d25a15f6ad3891389f333bc59.tar.xz | |
cfg80211: Add support to configure SAE PWE value to drivers
Add support to configure SAE PWE preference from userspace to drivers in
both AP and STA modes. This is needed for cases where the driver takes
care of Authentication frame processing (SME in the driver) so that
correct enforcement of the acceptable PWE derivation mechanism can be
performed.
The userspace applications can pass the sae_pwe value using the
NL80211_ATTR_SAE_PWE attribute in the NL80211_CMD_CONNECT and
NL80211_CMD_START_AP commands to the driver. This allows selection
between the hunting-and-pecking loop and hash-to-element options for PWE
derivation. For backwards compatibility, this new attribute is optional
and if not included, the driver is notified of the value being
unspecified.
Signed-off-by: Rohan Dutta <drohan@codeaurora.org>
Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
Link: https://lore.kernel.org/r/20201027100910.22283-1-jouni@codeaurora.org
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Diffstat (limited to 'net')
| -rw-r--r-- | net/wireless/nl80211.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c index 554796a6c6fe..0928ecbe5bd6 100644 --- a/net/wireless/nl80211.c +++ b/net/wireless/nl80211.c @@ -715,6 +715,9 @@ static const struct nla_policy nl80211_policy[NUM_NL80211_ATTR] = { NLA_POLICY_EXACT_LEN(IEEE80211_S1G_CAPABILITY_LEN), [NL80211_ATTR_S1G_CAPABILITY_MASK] = NLA_POLICY_EXACT_LEN(IEEE80211_S1G_CAPABILITY_LEN), + [NL80211_ATTR_SAE_PWE] = + NLA_POLICY_RANGE(NLA_U8, NL80211_SAE_PWE_HUNT_AND_PECK, + NL80211_SAE_PWE_BOTH), }; /* policy for the key attributes */ @@ -9731,6 +9734,12 @@ static int nl80211_crypto_settings(struct cfg80211_registered_device *rdev, nla_len(info->attrs[NL80211_ATTR_SAE_PASSWORD]); } + if (info->attrs[NL80211_ATTR_SAE_PWE]) + settings->sae_pwe = + nla_get_u8(info->attrs[NL80211_ATTR_SAE_PWE]); + else + settings->sae_pwe = NL80211_SAE_PWE_UNSPECIFIED; + return 0; } |