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[net80211] start refactoring out the "am I a wep / group key!" code.

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This is a bunch of pointer arithmetic that is copypasta'ed everywhere.
Let's undo that copypasta.
This commit is contained in:
Adrian Chadd 2016-12-07 04:02:41 +00:00
parent 43482f897b
commit 54a95d0d68
2 changed files with 22 additions and 0 deletions
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20
sys/net80211/ieee80211_crypto.c
View File

@ -520,6 +520,26 @@ ieee80211_crypto_setkey(struct ieee80211vap *vap, struct ieee80211_key *key)
return dev_key_set(vap, key);
}
/*
* Return index if the key is a WEP key (0..3); -1 otherwise.
*
* This is different to "get_keyid" which defaults to returning
* 0 for unicast keys; it assumes that it won't be used for WEP.
*/
int
ieee80211_crypto_get_key_wepidx(const struct ieee80211vap *vap,
const struct ieee80211_key *k)
{
if (k >= &vap->iv_nw_keys[0] &&
k < &vap->iv_nw_keys[IEEE80211_WEP_NKID])
return (k - vap->iv_nw_keys);
return (-1):
}
/*
* Note: only supports a single unicast key (0).
*/
uint8_t
ieee80211_crypto_get_keyid(struct ieee80211vap *vap, struct ieee80211_key *k)
{

2
sys/net80211/ieee80211_crypto.h
View File

@ -202,6 +202,8 @@ void ieee80211_crypto_register(const struct ieee80211_cipher *);
void ieee80211_crypto_unregister(const struct ieee80211_cipher *);
int ieee80211_crypto_available(u_int cipher);
int ieee80211_crypto_get_key_wepidx(const struct ieee80211vap *,
const struct ieee80211_key *k);
uint8_t ieee80211_crypto_get_keyid(struct ieee80211vap *vap,
struct ieee80211_key *k);
struct ieee80211_key *ieee80211_crypto_get_txkey(struct ieee80211_node *,