On 1/4/2019 7:11 AM, Chi-Hsien Lin wrote:
From: Chung-Hsien Hsu <stanley.hsu@xxxxxxxxxxx>
Let drivers advertise support for station-mode SAE authentication
offload with a new NL80211_EXT_FEATURE_SAE_OFFLOAD flag.
When touching nl80211 api I prefer 'nl80211:' prefix instead of 'cfg80211:'.
Signed-off-by: Chung-Hsien Hsu <stanley.hsu@xxxxxxxxxxx>
Signed-off-by: Chi-Hsien Lin <chi-hsien.lin@xxxxxxxxxxx>
---
include/linux/ieee80211.h | 1 +
include/net/cfg80211.h | 5 +++++
include/uapi/linux/nl80211.h | 16 ++++++++++++++++
net/wireless/nl80211.c | 14 ++++++++++++++
4 files changed, 36 insertions(+)
diff --git a/include/linux/ieee80211.h b/include/linux/ieee80211.h
index 3b04e72315e1..37d3e655e547 100644
--- a/include/linux/ieee80211.h
+++ b/include/linux/ieee80211.h
@@ -2596,6 +2596,7 @@ enum ieee80211_key_len {
#define FILS_ERP_MAX_RRK_LEN 64
#define PMK_MAX_LEN 64
+#define SAE_PASSWORD_MAX_LEN 128
/* Public action codes (IEEE Std 802.11-2016, 9.6.8.1, Table 9-307) */
enum ieee80211_pub_actioncode {
diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index e0c41eb1c860..5809dac97b33 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -740,6 +740,9 @@ struct survey_info {
* CFG80211_MAX_WEP_KEYS WEP keys
* @wep_tx_key: key index (0..3) of the default TX static WEP key
* @psk: PSK (for devices supporting 4-way-handshake offload)
+ * @sae_pwd: password for SAE authentication (for devices supporting SAE
+ * offload)
+ * @sae_pwd_len: length of SAE password (for devices supporting SAE offload)
*/
struct cfg80211_crypto_settings {
u32 wpa_versions;
@@ -755,6 +758,8 @@ struct cfg80211_crypto_settings {
struct key_params *wep_keys;
int wep_tx_key;
const u8 *psk;
+ const u8 *sae_pwd;
+ u16 sae_pwd_len;
Not really need u16 as max length is defined earlier as 128.
};
/**
diff --git a/include/uapi/linux/nl80211.h b/include/uapi/linux/nl80211.h
index 12762afb3a07..4840aaed39ba 100644
--- a/include/uapi/linux/nl80211.h
+++ b/include/uapi/linux/nl80211.h
@@ -235,6 +235,15 @@
*/
/**
+ * DOC: SAE authentication offload
+ *
+ * By setting @NL80211_EXT_FEATURE_SAE_OFFLOAD flag drivers can indicate they
+ * support offloading SAE authentication for WPA3-Personal networks. In
+ * %NL80211_CMD_CONNECT the password for SAE should be specified using
+ * %NL80211_ATTR_SAE_PASSWORD.
+ */
+
+/**
* enum nl80211_commands - supported nl80211 commands
*
* @NL80211_CMD_UNSPEC: unspecified command to catch errors
@@ -2288,6 +2297,9 @@ enum nl80211_commands {
*
* @NL80211_ATTR_FTM_RESPONDER_STATS: Nested attribute with FTM responder
* statistics, see &enum nl80211_ftm_responder_stats.
+ * @NL80211_ATTR_SAE_PASSWORD: attribute for passing SAE password material. It
+ * is used with %NL80211_CMD_CONNECT to provide password for offloading
+ * SAE authentication for WPA3-Personal networks.
*
* @NL80211_ATTR_TIMEOUT: Timeout for the given operation in milliseconds (u32),
* if the attribute is not given no timeout is requested. Note that 0 is an
@@ -2743,6 +2755,7 @@ enum nl80211_attrs {
NL80211_ATTR_FTM_RESPONDER,
NL80211_ATTR_FTM_RESPONDER_STATS,
+ NL80211_ATTR_SAE_PASSWORD,
Marcel already commented on this. These enumerations are ABI. You should
also change the nl80211_policy to assure the max length
SAE_PASSWORD_MAX_LEN is not exceeded.
Gr. AvS
