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authorJouni Malinen <j@w1.fi>2015-01-25 14:49:18 (GMT)
committerJouni Malinen <j@w1.fi>2015-01-26 23:26:49 (GMT)
commit98cd3d1c3b2f2081539a95be26b37aae88b2b0f5 (patch)
tree7ebb32f2312e9feff800426599b6e27e08b0106a /src/common/wpa_common.h
parent287eb3f9d723cbba9493a89049b98c76d75e129a (diff)
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Preparations for variable length KCK and KEK
This modifies struct wpa_ptk to allow the length of KCK and KEK to be stored. This is needed to allow longer keys to be used, e.g., with Suite B 192-bit level. Signed-off-by: Jouni Malinen <j@w1.fi>
Diffstat (limited to 'src/common/wpa_common.h')
-rw-r--r--src/common/wpa_common.h50
1 files changed, 26 insertions, 24 deletions
diff --git a/src/common/wpa_common.h b/src/common/wpa_common.h
index 17bed34..ddb4a09 100644
--- a/src/common/wpa_common.h
+++ b/src/common/wpa_common.h
@@ -1,6 +1,6 @@
/*
* WPA definitions shared between hostapd and wpa_supplicant
- * Copyright (c) 2002-2013, Jouni Malinen <j@w1.fi>
+ * Copyright (c) 2002-2015, Jouni Malinen <j@w1.fi>
*
* This software may be distributed under the terms of the BSD license.
* See README for more details.
@@ -191,22 +191,23 @@ struct wpa_eapol_key {
/* followed by key_data_length bytes of key_data */
} STRUCT_PACKED;
+#define WPA_EAPOL_KEY_MIC_MAX_LEN 16
+#define WPA_KCK_MAX_LEN 16
+#define WPA_KEK_MAX_LEN 16
+#define WPA_TK_MAX_LEN 32
+
/**
* struct wpa_ptk - WPA Pairwise Transient Key
* IEEE Std 802.11i-2004 - 8.5.1.2 Pairwise key hierarchy
*/
struct wpa_ptk {
- u8 kck[16]; /* EAPOL-Key Key Confirmation Key (KCK) */
- u8 kek[16]; /* EAPOL-Key Key Encryption Key (KEK) */
- u8 tk1[16]; /* Temporal Key 1 (TK1) */
- union {
- u8 tk2[16]; /* Temporal Key 2 (TK2) */
- struct {
- u8 tx_mic_key[8];
- u8 rx_mic_key[8];
- } auth;
- } u;
-} STRUCT_PACKED;
+ u8 kck[WPA_KCK_MAX_LEN]; /* EAPOL-Key Key Confirmation Key (KCK) */
+ u8 kek[WPA_KEK_MAX_LEN]; /* EAPOL-Key Key Encryption Key (KEK) */
+ u8 tk[WPA_TK_MAX_LEN]; /* Temporal Key (TK) */
+ size_t kck_len;
+ size_t kek_len;
+ size_t tk_len;
+};
/* WPA IE version 1
@@ -327,16 +328,17 @@ struct rsn_rdie {
#endif /* _MSC_VER */
-int wpa_eapol_key_mic(const u8 *key, int akmp, int ver, const u8 *buf,
- size_t len, u8 *mic);
-void wpa_pmk_to_ptk(const u8 *pmk, size_t pmk_len, const char *label,
- const u8 *addr1, const u8 *addr2,
- const u8 *nonce1, const u8 *nonce2,
- u8 *ptk, size_t ptk_len, int use_sha256);
+int wpa_eapol_key_mic(const u8 *key, size_t key_len, int akmp, int ver,
+ const u8 *buf, size_t len, u8 *mic);
+int wpa_pmk_to_ptk(const u8 *pmk, size_t pmk_len, const char *label,
+ const u8 *addr1, const u8 *addr2,
+ const u8 *nonce1, const u8 *nonce2,
+ struct wpa_ptk *ptk, int akmp, int cipher);
#ifdef CONFIG_IEEE80211R
-int wpa_ft_mic(const u8 *kck, const u8 *sta_addr, const u8 *ap_addr,
- u8 transaction_seqnum, const u8 *mdie, size_t mdie_len,
+int wpa_ft_mic(const u8 *kck, size_t kck_len, const u8 *sta_addr,
+ const u8 *ap_addr, u8 transaction_seqnum,
+ const u8 *mdie, size_t mdie_len,
const u8 *ftie, size_t ftie_len,
const u8 *rsnie, size_t rsnie_len,
const u8 *ric, size_t ric_len, u8 *mic);
@@ -349,10 +351,10 @@ void wpa_derive_pmk_r1_name(const u8 *pmk_r0_name, const u8 *r1kh_id,
void wpa_derive_pmk_r1(const u8 *pmk_r0, const u8 *pmk_r0_name,
const u8 *r1kh_id, const u8 *s1kh_id,
u8 *pmk_r1, u8 *pmk_r1_name);
-void wpa_pmk_r1_to_ptk(const u8 *pmk_r1, const u8 *snonce, const u8 *anonce,
- const u8 *sta_addr, const u8 *bssid,
- const u8 *pmk_r1_name,
- u8 *ptk, size_t ptk_len, u8 *ptk_name);
+int wpa_pmk_r1_to_ptk(const u8 *pmk_r1, const u8 *snonce, const u8 *anonce,
+ const u8 *sta_addr, const u8 *bssid,
+ const u8 *pmk_r1_name,
+ struct wpa_ptk *ptk, u8 *ptk_name, int akmp, int cipher);
#endif /* CONFIG_IEEE80211R */
struct wpa_ie_data {