Prevent installation of an all-zero TK am: 97b53ba4a5
am: 472d4593b2
Change-Id: I72a2175d60bcdb9f64453141bab9847011032867
diff --git a/src/common/wpa_common.h b/src/common/wpa_common.h
index 504ec2d..d42ac92 100644
--- a/src/common/wpa_common.h
+++ b/src/common/wpa_common.h
@@ -213,6 +213,7 @@
size_t kck_len;
size_t kek_len;
size_t tk_len;
+ int installed; /* 1 if key has already been installed to driver */
};
struct wpa_gtk {
diff --git a/src/rsn_supp/wpa.c b/src/rsn_supp/wpa.c
index 63fe6b7..ac0addf 100644
--- a/src/rsn_supp/wpa.c
+++ b/src/rsn_supp/wpa.c
@@ -500,7 +500,6 @@
os_memset(buf, 0, sizeof(buf));
}
sm->tptk_set = 1;
- sm->tk_to_set = 1;
kde = sm->assoc_wpa_ie;
kde_len = sm->assoc_wpa_ie_len;
@@ -606,7 +605,7 @@
const u8 *key_rsc;
u8 null_rsc[8] = { 0, 0, 0, 0, 0, 0, 0, 0 };
- if (!sm->tk_to_set) {
+ if (sm->ptk.installed) {
wpa_dbg(sm->ctx->msg_ctx, MSG_DEBUG,
"WPA: Do not re-install same PTK to the driver");
return 0;
@@ -650,7 +649,7 @@
/* TK is not needed anymore in supplicant */
os_memset(sm->ptk.tk, 0, WPA_TK_MAX_LEN);
- sm->tk_to_set = 0;
+ sm->ptk.installed = 1;
if (sm->wpa_ptk_rekey) {
eloop_cancel_timeout(wpa_sm_rekey_ptk, sm, NULL);
diff --git a/src/rsn_supp/wpa_i.h b/src/rsn_supp/wpa_i.h
index ee21a8a..27b6123 100644
--- a/src/rsn_supp/wpa_i.h
+++ b/src/rsn_supp/wpa_i.h
@@ -24,7 +24,6 @@
struct wpa_ptk ptk, tptk;
int ptk_set, tptk_set;
unsigned int msg_3_of_4_ok:1;
- unsigned int tk_to_set:1;
u8 snonce[WPA_NONCE_LEN];
u8 anonce[WPA_NONCE_LEN]; /* ANonce from the last 1/4 msg */
int renew_snonce;