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05a8bf04ec
Fixes compatibility issues with the latest hostapd update
Signed-off-by: Felix Fietkau <nbd@nbd.name>
(cherry-picked from commit 91abeebd3b)
75 lines
2.8 KiB
Diff
75 lines
2.8 KiB
Diff
From: Rohan Dutta <drohan@codeaurora.org>
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Date: Tue, 27 Oct 2020 12:09:10 +0200
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Subject: [PATCH] cfg80211: Add support to configure SAE PWE value to drivers
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Add support to configure SAE PWE preference from userspace to drivers in
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both AP and STA modes. This is needed for cases where the driver takes
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care of Authentication frame processing (SME in the driver) so that
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correct enforcement of the acceptable PWE derivation mechanism can be
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performed.
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The userspace applications can pass the sae_pwe value using the
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NL80211_ATTR_SAE_PWE attribute in the NL80211_CMD_CONNECT and
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NL80211_CMD_START_AP commands to the driver. This allows selection
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between the hunting-and-pecking loop and hash-to-element options for PWE
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derivation. For backwards compatibility, this new attribute is optional
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and if not included, the driver is notified of the value being
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unspecified.
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Signed-off-by: Rohan Dutta <drohan@codeaurora.org>
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Signed-off-by: Jouni Malinen <jouni@codeaurora.org>
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Link: https://lore.kernel.org/r/20201027100910.22283-1-jouni@codeaurora.org
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Signed-off-by: Johannes Berg <johannes.berg@intel.com>
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---
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--- a/include/net/cfg80211.h
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+++ b/include/net/cfg80211.h
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@@ -1009,6 +1009,14 @@ struct survey_info {
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* @sae_pwd: password for SAE authentication (for devices supporting SAE
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* offload)
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* @sae_pwd_len: length of SAE password (for devices supporting SAE offload)
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+ * @sae_pwe: The mechanisms allowed for SAE PWE derivation
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+ * NL80211_SAE_PWE_UNSPECIFIED: Not-specified, used to indicate userspace
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+ * did not specify any preference. The driver should follow its
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+ * internal policy in such a scenario.
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+ * NL80211_SAE_PWE_HUNT_AND_PECK: Allow hunting-and-pecking loop only
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+ * NL80211_SAE_PWE_HASH_TO_ELEMENT: Allow hash-to-element only
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+ * NL80211_SAE_PWE_BOTH: Allow either hunting-and-pecking loop
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+ * or hash-to-element
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*/
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struct cfg80211_crypto_settings {
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u32 wpa_versions;
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@@ -1027,6 +1035,7 @@ struct cfg80211_crypto_settings {
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const u8 *psk;
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const u8 *sae_pwd;
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u8 sae_pwd_len;
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+ enum nl80211_sae_pwe_mechanism sae_pwe;
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};
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/**
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--- a/net/wireless/nl80211.c
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+++ b/net/wireless/nl80211.c
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@@ -736,6 +736,9 @@ static const struct nla_policy nl80211_p
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NLA_POLICY_EXACT_LEN(IEEE80211_S1G_CAPABILITY_LEN),
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[NL80211_ATTR_S1G_CAPABILITY_MASK] =
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NLA_POLICY_EXACT_LEN(IEEE80211_S1G_CAPABILITY_LEN),
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+ [NL80211_ATTR_SAE_PWE] =
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+ NLA_POLICY_RANGE(NLA_U8, NL80211_SAE_PWE_HUNT_AND_PECK,
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+ NL80211_SAE_PWE_BOTH),
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[NL80211_ATTR_RECONNECT_REQUESTED] = { .type = NLA_REJECT },
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};
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@@ -9764,6 +9767,12 @@ static int nl80211_crypto_settings(struc
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nla_len(info->attrs[NL80211_ATTR_SAE_PASSWORD]);
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}
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+ if (info->attrs[NL80211_ATTR_SAE_PWE])
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+ settings->sae_pwe =
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+ nla_get_u8(info->attrs[NL80211_ATTR_SAE_PWE]);
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+ else
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+ settings->sae_pwe = NL80211_SAE_PWE_UNSPECIFIED;
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+
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return 0;
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}
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