meta-digi/meta-digi-dey/recipes-connectivity/hostapd/hostapd/murata/0008-nl80211-Support-4-way-...

117 lines
4.9 KiB
Diff

From 0bdd3f507d5dc92e42c72df7f4b79ffdab514fe1 Mon Sep 17 00:00:00 2001
From: Chung-Hsien Hsu <stanley.hsu@cypress.com>
Date: Tue, 10 Dec 2019 14:02:39 -0600
Subject: [PATCH 08/49] nl80211: Support 4-way handshake offload for
WPA/WPA2-PSK in AP mode
If driver advertises support for WPA/WPA2-PSK 4-way handshake offload in
AP mode, set WPA_DRIVER_FLAGS2_4WAY_HANDSHAKE_AP_PSK flag and pass PSK
in NL80211_CMD_NEW_BEACON command.
Signed-off-by: Chung-Hsien Hsu <chung-hsien.hsu@infineon.com>
---
src/drivers/driver.h | 30 +++++++++++++++++++++++++++---
src/drivers/driver_nl80211.c | 8 ++++++++
src/drivers/driver_nl80211_capa.c | 4 ++++
3 files changed, 39 insertions(+), 3 deletions(-)
diff --git a/src/drivers/driver.h b/src/drivers/driver.h
index 7cfa92ed8..a42ec5e1f 100644
--- a/src/drivers/driver.h
+++ b/src/drivers/driver.h
@@ -1590,6 +1590,27 @@ struct wpa_driver_ap_params {
* Unsolicited broadcast Probe Response template length
*/
size_t unsol_bcast_probe_resp_tmpl_len;
+
+ /**
+ * passphrase - RSN passphrase for PSK
+ *
+ * This value is made available only for WPA/WPA2-Personal (PSK) and
+ * only for drivers that set WPA_DRIVER_FLAGS2_4WAY_HANDSHAKE_AP_PSK.
+ * This is the 8..63 character ASCII passphrase, if available. Please
+ * note that this can be %NULL if passphrase was not used to generate
+ * the PSK. In that case, the psk field must be used to fetch the PSK.
+ */
+ const char *passphrase;
+
+ /**
+ * psk - RSN PSK (alternative for passphrase for PSK)
+ *
+ * This value is made available only for WPA/WPA2-Personal (PSK) and
+ * only for drivers that set WPA_DRIVER_FLAGS2_4WAY_HANDSHAKE_AP_PSK.
+ * This is the 32-octet (256-bit) PSK, if available. The driver wrapper
+ * should be prepared to handle %NULL value as an error.
+ */
+ const u8 *psk;
};
struct wpa_driver_mesh_bss_params {
@@ -1872,8 +1893,9 @@ struct wpa_driver_capa {
#define WPA_DRIVER_FLAGS_SET_KEYS_AFTER_ASSOC 0x00000002
/** Driver takes care of all DFS operations */
#define WPA_DRIVER_FLAGS_DFS_OFFLOAD 0x00000004
-/** Driver takes care of RSN 4-way handshake internally; PMK is configured with
- * struct wpa_driver_ops::set_key using key_flag = KEY_FLAG_PMK */
+/** Driver takes care of RSN 4-way handshake internally in station mode; PMK is
+ * configured with struct wpa_driver_ops::set_key using key_flag = KEY_FLAG_PMK
+ */
#define WPA_DRIVER_FLAGS_4WAY_HANDSHAKE_8021X 0x00000008
/** Driver is for a wired Ethernet interface */
#define WPA_DRIVER_FLAGS_WIRED 0x00000010
@@ -1998,7 +2020,7 @@ struct wpa_driver_capa {
#define WPA_DRIVER_FLAGS_SELF_MANAGED_REGULATORY 0x0080000000000000ULL
/** Driver supports FTM responder functionality */
#define WPA_DRIVER_FLAGS_FTM_RESPONDER 0x0100000000000000ULL
-/** Driver support 4-way handshake offload for WPA-Personal */
+/** Driver supports 4-way handshake offload for WPA-Personal in station mode */
#define WPA_DRIVER_FLAGS_4WAY_HANDSHAKE_PSK 0x0200000000000000ULL
/** Driver supports a separate control port TX for EAPOL frames */
#define WPA_DRIVER_FLAGS_CONTROL_PORT 0x0400000000000000ULL
@@ -2037,6 +2059,8 @@ struct wpa_driver_capa {
#define WPA_DRIVER_FLAGS2_AP_SME 0x0000000000000100ULL
/** Driver supports SAE authentication offload */
#define WPA_DRIVER_FLAGS2_SAE_OFFLOAD 0x0000000000000200ULL
+/** Driver supports 4-way handshake offload for WPA-Personal in AP mode */
+#define WPA_DRIVER_FLAGS2_4WAY_HANDSHAKE_AP_PSK 0x0000000000000400ULL
u64 flags2;
#define FULL_AP_CLIENT_STATE_SUPP(drv_flags) \
diff --git a/src/drivers/driver_nl80211.c b/src/drivers/driver_nl80211.c
index 91e8d44d8..f228a0715 100644
--- a/src/drivers/driver_nl80211.c
+++ b/src/drivers/driver_nl80211.c
@@ -4677,6 +4677,14 @@ static int wpa_driver_nl80211_set_ap(void *priv,
nla_put_u32(msg, NL80211_ATTR_CIPHER_SUITE_GROUP, suite))
goto fail;
+ /* Add PSK in case of 4-way handshake offload */
+ if (params->psk &&
+ (drv->capa.flags2 & WPA_DRIVER_FLAGS2_4WAY_HANDSHAKE_AP_PSK)) {
+ wpa_hexdump_key(MSG_DEBUG, "nl80211: PSK", params->psk, 32);
+ if (nla_put(msg, NL80211_ATTR_PMK, 32, params->psk))
+ goto fail;
+ }
+
if (params->beacon_ies) {
wpa_hexdump_buf(MSG_DEBUG, "nl80211: beacon_ies",
params->beacon_ies);
diff --git a/src/drivers/driver_nl80211_capa.c b/src/drivers/driver_nl80211_capa.c
index a443b7c87..dc4988c7c 100644
--- a/src/drivers/driver_nl80211_capa.c
+++ b/src/drivers/driver_nl80211_capa.c
@@ -594,6 +594,10 @@ static void wiphy_info_ext_feature_flags(struct wiphy_info_data *info,
NL80211_EXT_FEATURE_4WAY_HANDSHAKE_STA_1X))
capa->flags |= WPA_DRIVER_FLAGS_4WAY_HANDSHAKE_8021X;
+ if (ext_feature_isset(ext_features, len,
+ NL80211_EXT_FEATURE_4WAY_HANDSHAKE_AP_PSK))
+ capa->flags2 |= WPA_DRIVER_FLAGS2_4WAY_HANDSHAKE_AP_PSK;
+
if (ext_feature_isset(ext_features, len,
NL80211_EXT_FEATURE_SAE_OFFLOAD))
capa->flags2 |= WPA_DRIVER_FLAGS2_SAE_OFFLOAD;
--
2.17.1