diff options
Diffstat (limited to 'include/net/mac80211.h')
| -rw-r--r-- | include/net/mac80211.h | 59 |
1 files changed, 48 insertions, 11 deletions
diff --git a/include/net/mac80211.h b/include/net/mac80211.h index 3437fa16eea..ec8c7393956 100644 --- a/include/net/mac80211.h +++ b/include/net/mac80211.h @@ -399,19 +399,34 @@ typedef enum { ALG_CCMP, } ieee80211_key_alg; +/* + * This flag indiciates that the station this key is being + * configured for may use QoS. If your hardware cannot handle + * that situation it should reject that key. + */ +#define IEEE80211_KEY_FLAG_WMM_STA (1<<0) + struct ieee80211_key_conf { - /* shall be changed by the driver to anything but HW_KEY_IDX_INVALID */ + /* + * To be set by the driver to the key index it would like to + * get in the ieee80211_tx_control.key_idx which defaults + * to HW_KEY_IDX_INVALID so that shouldn't be used. + */ int hw_key_idx; + /* key algorithm, ALG_NONE should never be seen by the driver */ ieee80211_key_alg alg; - int keylen; + /* key flags, see above */ + u8 flags; + + /* key index: 0-3 */ + s8 keyidx; -#define IEEE80211_KEY_FORCE_SW_ENCRYPT (1<<0) /* to be cleared by low-level - driver */ - u32 flags; /* key configuration flags defined above */ + /* length of key material */ + u8 keylen; - s8 keyidx; /* WEP key index */ + /* the key material */ u8 key[0]; }; @@ -419,7 +434,7 @@ struct ieee80211_key_conf { #define IEEE80211_SEQ_COUNTER_TX 1 typedef enum { - SET_KEY, DISABLE_KEY, REMOVE_ALL_KEYS, + SET_KEY, DISABLE_KEY, } set_key_cmd; /* This is driver-visible part of the per-hw state the stack keeps. */ @@ -492,8 +507,7 @@ struct ieee80211_hw { /* hole at 6 */ - /* Force software encryption for TKIP packets if WMM is enabled. */ -#define IEEE80211_HW_NO_TKIP_WMM_HWACCEL (1<<7) +/* hole at 7 */ /* * Some devices handle Michael MIC internally and do not include MIC in @@ -627,12 +641,31 @@ struct ieee80211_ops { * * This is called to enable hardware acceleration of encryption and * decryption. The address will be the broadcast address for default - * keys and the other station's hardware address for individual keys. + * keys, the other station's hardware address for individual keys or + * the zero address for keys that will be used only for transmission. + * + * The local_address parameter will always be set to our own address, + * this is only relevant if you support multiple local addresses. + * * When transmitting, the TX control data will use the hw_key_idx * selected by the low-level driver. + * + * Return 0 if the key is now in use, -EOPNOTSUPP or -ENOSPC if it + * couldn't be added; if you return 0 then hw_key_idx must be + * assigned to something other than HW_KEY_IDX_INVALID. When the cmd + * is DISABLE_KEY then it must succeed. + * + * This callback can sleep, and is only called between add_interface + * and remove_interface calls, i.e. while the interface with the + * given local_address is enabled. + * + * The ieee80211_key_conf structure pointed to by the key parameter + * is guaranteed to be valid until another call to set_key removes + * it, but it can only be used as a cookie to differentiate keys. */ int (*set_key)(struct ieee80211_hw *hw, set_key_cmd cmd, - u8 *address, struct ieee80211_key_conf *key); + const u8 *local_address, const u8 *address, + struct ieee80211_key_conf *key); /* * Set TX key index for default/broadcast keys. This is needed in cases @@ -640,6 +673,10 @@ struct ieee80211_ops { * is not set), in other cases, this function pointer can be set to * NULL since the IEEE 802.11 module takes care of selecting the key * index for each TX frame. + * + * TODO: If you use this callback in your driver tell us if you need + * any other information from it to make it easier, like the + * key_conf instead. */ int (*set_key_idx)(struct ieee80211_hw *hw, int idx); |