Name

struct ieee80211_key_conf — key information

Synopsis

struct ieee80211_key_conf {
  atomic64_t tx_pn;
  u32 cipher;
  u8 icv_len;
  u8 iv_len;
  u8 hw_key_idx;
  u8 flags;
  s8 keyidx;
  u8 keylen;
  u8 key[0];
};  

Members

tx_pn

PN used for TX keys, may be used by the driver as well if it needs to do software PN assignment by itself (e.g. due to TSO)

cipher

The key's cipher suite selector.

icv_len

The ICV length for this key type

iv_len

The IV length for this key type

hw_key_idx

To be set by the driver, this is the key index the driver wants to be given when a frame is transmitted and needs to be encrypted in hardware.

flags

key flags, see enum ieee80211_key_flags.

keyidx

the key index (0-3)

keylen

key material length

key[0]

key material. For ALG_TKIP the key is encoded as a 256-bit (32 byte)

Description

This key information is given by mac80211 to the driver by the set_key callback in struct ieee80211_ops.

data block

- Temporal Encryption Key (128 bits) - Temporal Authenticator Tx MIC Key (64 bits) - Temporal Authenticator Rx MIC Key (64 bits)