From: Avraham Stern <avraham.stern@xxxxxxxxx>
Add support for setting the PMK to the driver. This is used for
drivers that support 4 Way handshake offload.
Signed-off-by: Avraham Stern <avraham.stern@xxxxxxxxx>
---
src/drivers/driver_nl80211.c | 38 ++++++++++++++++++++++++++++++++++++++
1 file changed, 38 insertions(+)
diff --git a/src/drivers/driver_nl80211.c b/src/drivers/driver_nl80211.c
index 3267b0e..b67f4a7 100644
--- a/src/drivers/driver_nl80211.c
+++ b/src/drivers/driver_nl80211.c
@@ -2781,6 +2781,40 @@ static int issue_key_mgmt_set_key(struct wpa_driver_nl80211_data *drv,
}
#endif /* CONFIG_DRIVER_NL80211_QCA */
+static int wpa_driver_nl80211_set_pmk(struct wpa_driver_nl80211_data *drv,
+ const u8 *key, size_t key_len,
+ const u8 *addr)
+{
+ struct nl_msg *msg = NULL;
+ int ret;
+
+ /*
+ * If the authenticator address is not set, assume it is
+ * the current BSSID.
+ */
+ if (!addr && drv->associated)
+ addr = drv->bssid;
+ else if (!addr)
+ return -1;
+
+ msg = nl80211_drv_msg(drv, 0, NL80211_CMD_SET_PMK);
+ if (!msg ||
+ nla_put(msg, NL80211_ATTR_MAC, ETH_ALEN, addr) ||
+ nla_put(msg, NL80211_ATTR_PMK, key_len, key)) {
+ nl80211_nlmsg_clear(msg);
+ nlmsg_free(msg);
+ return -ENOBUFS;
+ }
+
+ ret = send_and_recv_msgs(drv, msg, NULL, (void *) -1);
+ if (ret) {
+ wpa_printf(MSG_DEBUG,
+ "nl80211: Set PMK failed: ret=%d (%s)",
+ ret, strerror(-ret));
+ }
+
+ return ret;
+}
static int wpa_driver_nl80211_set_key(const char *ifname, struct i802_bss *bss,
enum wpa_alg alg, const u8 *addr,
@@ -2820,6 +2854,10 @@ static int wpa_driver_nl80211_set_key(const char *ifname, struct i802_bss *bss,
}
#endif /* CONFIG_DRIVER_NL80211_QCA */
+ if (alg == WPA_ALG_PMK &&
+ (drv->capa.flags & WPA_DRIVER_FLAGS_4WAY_HANDSHAKE))
+ return wpa_driver_nl80211_set_pmk(drv, key, key_len, addr);
+
if (alg == WPA_ALG_NONE) {
msg = nl80211_ifindex_msg(drv, ifindex, 0, NL80211_CMD_DEL_KEY);
if (!msg)
--
2.7.4
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