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Diffstat (limited to 'hostapd/wpa_ft.c')
-rw-r--r--hostapd/wpa_ft.c13
1 files changed, 7 insertions, 6 deletions
diff --git a/hostapd/wpa_ft.c b/hostapd/wpa_ft.c
index 8c52176..bc86bd0 100644
--- a/hostapd/wpa_ft.c
+++ b/hostapd/wpa_ft.c
@@ -344,7 +344,7 @@ static int wpa_ft_pull_pmk_r1(struct wpa_authenticator *wpa_auth,
int wpa_auth_derive_ptk_ft(struct wpa_state_machine *sm, const u8 *pmk,
- struct wpa_ptk *ptk)
+ struct wpa_ptk *ptk, size_t ptk_len)
{
u8 pmk_r0[PMK_LEN], pmk_r0_name[WPA_PMK_NAME_LEN];
u8 pmk_r1[PMK_LEN], pmk_r1_name[WPA_PMK_NAME_LEN];
@@ -377,8 +377,8 @@ int wpa_auth_derive_ptk_ft(struct wpa_state_machine *sm, const u8 *pmk,
wpa_pmk_r1_to_ptk(pmk_r1, sm->SNonce, sm->ANonce, sm->addr,
sm->wpa_auth->addr, pmk_r1_name,
- (u8 *) ptk, sizeof(*ptk), ptk_name);
- wpa_hexdump_key(MSG_DEBUG, "FT: PTK", (u8 *) ptk, sizeof(*ptk));
+ (u8 *) ptk, ptk_len, ptk_name);
+ wpa_hexdump_key(MSG_DEBUG, "FT: PTK", (u8 *) ptk, ptk_len);
wpa_hexdump(MSG_DEBUG, "FT: PTKName", ptk_name, WPA_PMK_NAME_LEN);
return 0;
@@ -889,7 +889,7 @@ static u16 wpa_ft_process_auth_req(struct wpa_state_machine *sm,
u8 ptk_name[WPA_PMK_NAME_LEN];
struct wpa_auth_config *conf;
struct wpa_ft_ies parse;
- size_t buflen;
+ size_t buflen, ptk_len;
int ret;
u8 *pos, *end;
@@ -979,11 +979,12 @@ static u16 wpa_ft_process_auth_req(struct wpa_state_machine *sm,
wpa_hexdump(MSG_DEBUG, "FT: Generated ANonce",
sm->ANonce, WPA_NONCE_LEN);
+ ptk_len = sm->pairwise == WPA_CIPHER_CCMP ? 48 : 64;
wpa_pmk_r1_to_ptk(pmk_r1, sm->SNonce, sm->ANonce, sm->addr,
sm->wpa_auth->addr, pmk_r1_name,
- (u8 *) &sm->PTK, sizeof(sm->PTK), ptk_name);
+ (u8 *) &sm->PTK, ptk_len, ptk_name);
wpa_hexdump_key(MSG_DEBUG, "FT: PTK",
- (u8 *) &sm->PTK, sizeof(sm->PTK));
+ (u8 *) &sm->PTK, ptk_len);
wpa_hexdump(MSG_DEBUG, "FT: PTKName", ptk_name, WPA_PMK_NAME_LEN);
wpa_ft_install_ptk(sm);