diff options
Diffstat (limited to 'target/linux/package/ieee80211-dscape/src/ieee80211_key.h')
-rw-r--r-- | target/linux/package/ieee80211-dscape/src/ieee80211_key.h | 80 |
1 files changed, 80 insertions, 0 deletions
diff --git a/target/linux/package/ieee80211-dscape/src/ieee80211_key.h b/target/linux/package/ieee80211-dscape/src/ieee80211_key.h new file mode 100644 index 000000000..7a2415dec --- /dev/null +++ b/target/linux/package/ieee80211-dscape/src/ieee80211_key.h @@ -0,0 +1,80 @@ +/* + * Copyright 2002-2004, Instant802 Networks, Inc. + * Copyright 2005, Devicescape Software, Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#ifndef IEEE80211_KEY_H +#define IEEE80211_KEY_H + +/* ALG_TKIP + * struct ieee80211_key::key is encoded as a 256-bit (32 byte) data block: + * Temporal Encryption Key (128 bits) + * Temporal Authenticator Tx MIC Key (64 bits) + * Temporal Authenticator Rx MIC Key (64 bits) + */ + +#define WEP_IV_LEN 4 +#define WEP_ICV_LEN 4 + +#define ALG_TKIP_KEY_LEN 32 +/* Starting offsets for each key */ +#define ALG_TKIP_TEMP_ENCR_KEY 0 +#define ALG_TKIP_TEMP_AUTH_TX_MIC_KEY 16 +#define ALG_TKIP_TEMP_AUTH_RX_MIC_KEY 24 +#define TKIP_IV_LEN 8 +#define TKIP_ICV_LEN 4 + +#define ALG_CCMP_KEY_LEN 16 +#define CCMP_HDR_LEN 8 +#define CCMP_MIC_LEN 8 +#define CCMP_TK_LEN 16 +#define CCMP_PN_LEN 6 + +#define NUM_RX_DATA_QUEUES 17 + +struct ieee80211_key { + int hw_key_idx; /* filled and used by low-level driver */ + ieee80211_key_alg alg; + union { + struct { + /* last used TSC */ + u32 iv32; + u16 iv16; + u16 p1k[5]; + int tx_initialized; + + /* last received RSC */ + u32 iv32_rx[NUM_RX_DATA_QUEUES]; + u16 iv16_rx[NUM_RX_DATA_QUEUES]; + u16 p1k_rx[NUM_RX_DATA_QUEUES][5]; + int rx_initialized[NUM_RX_DATA_QUEUES]; + } tkip; + struct { + u8 tx_pn[6]; + /* TODO: for WME make this replay counter per AC */ + u8 rx_pn[NUM_RX_DATA_QUEUES][6]; +#ifndef AES_STATE_LEN +#define AES_STATE_LEN 44 +#endif + u32 aes_state[AES_STATE_LEN]; + u32 replays; /* dot11RSNAStatsCCMPReplays */ + } ccmp; + } u; + int tx_rx_count; /* number of times this key has been used */ + int keylen; + + /* if the low level driver can provide hardware acceleration it should + * clear this flag */ + int force_sw_encrypt:1; + int keyidx:8; /* WEP key index */ + int default_tx_key:1; /* This key is the new default TX key + * (used only for broadcast keys). */ + + u8 key[0]; +}; + +#endif /* IEEE80211_KEY_H */ |