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staging: vt6655: mac80211 conversion: add new key functions

vnt_key_init_table to initialize the table

vnt_set_keys to set the keys

Signed-off-by: Malcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
hifive-unleashed-5.1
Malcolm Priestley 2014-10-29 17:43:37 +00:00 committed by Greg Kroah-Hartman
parent 33b1c8c13f
commit fee7506a12
3 changed files with 154 additions and 0 deletions

View File

@ -323,6 +323,7 @@ struct vnt_private {
/* mac80211 */
struct ieee80211_hw *hw;
struct ieee80211_vif *vif;
unsigned long key_entry_inuse;
/* netdev */
struct net_device *dev;

View File

@ -790,3 +790,139 @@ bool KeybSetAllGroupKey(
}
return true;
}
int vnt_key_init_table(struct vnt_private *priv)
{
u32 i;
for (i = 0; i < MAX_KEY_TABLE; i++)
MACvDisableKeyEntry(priv->PortOffset, i);
return 0;
}
static int vnt_set_keymode(struct ieee80211_hw *hw, u8 *mac_addr,
struct ieee80211_key_conf *key, u32 key_type, u32 mode,
bool onfly_latch)
{
struct vnt_private *priv = hw->priv;
u8 broadcast[6] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
u16 key_mode = 0;
u32 entry = 0;
u8 *bssid;
u8 key_inx = key->keyidx;
u8 i;
if (mac_addr)
bssid = mac_addr;
else
bssid = &broadcast[0];
if (key_type != VNT_KEY_DEFAULTKEY) {
for (i = 0; i < (MAX_KEY_TABLE - 1); i++) {
if (!test_bit(i, &priv->key_entry_inuse)) {
set_bit(i, &priv->key_entry_inuse);
key->hw_key_idx = i;
entry = key->hw_key_idx;
break;
}
}
}
switch (key_type) {
/* fallthrough */
case VNT_KEY_DEFAULTKEY:
/* default key last entry */
entry = MAX_KEY_TABLE - 1;
key->hw_key_idx = entry;
case VNT_KEY_ALLGROUP:
key_mode |= VNT_KEY_ALLGROUP;
if (onfly_latch)
key_mode |= VNT_KEY_ONFLY_ALL;
case VNT_KEY_GROUP_ADDRESS:
key_mode |= mode;
case VNT_KEY_GROUP:
key_mode |= (mode << 4);
key_mode |= VNT_KEY_GROUP;
break;
case VNT_KEY_PAIRWISE:
key_mode |= mode;
key_inx = 4;
break;
default:
return -EINVAL;
}
if (onfly_latch)
key_mode |= VNT_KEY_ONFLY;
if (mode == KEY_CTL_WEP) {
if (key->keylen == WLAN_KEY_LEN_WEP40)
key->key[15] &= 0x7f;
if (key->keylen == WLAN_KEY_LEN_WEP104)
key->key[15] |= 0x80;
}
MACvSetKeyEntry(priv->PortOffset, key_mode, entry, key_inx,
bssid, (u32 *)key->key, priv->byLocalID);
return 0;
}
int vnt_set_keys(struct ieee80211_hw *hw, struct ieee80211_sta *sta,
struct ieee80211_vif *vif, struct ieee80211_key_conf *key)
{
struct ieee80211_bss_conf *conf = &vif->bss_conf;
struct vnt_private *priv = hw->priv;
u8 *mac_addr = NULL;
u8 key_dec_mode = 0;
int ret = 0;
u32 u;
if (sta)
mac_addr = &sta->addr[0];
switch (key->cipher) {
case 0:
for (u = 0 ; u < MAX_KEY_TABLE; u++)
MACvDisableKeyEntry(priv->PortOffset, u);
return ret;
case WLAN_CIPHER_SUITE_WEP40:
case WLAN_CIPHER_SUITE_WEP104:
for (u = 0; u < MAX_KEY_TABLE; u++)
MACvDisableKeyEntry(priv->PortOffset, u);
vnt_set_keymode(hw, mac_addr,
key, VNT_KEY_DEFAULTKEY, KEY_CTL_WEP, true);
key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
return ret;
case WLAN_CIPHER_SUITE_TKIP:
key->flags |= IEEE80211_KEY_FLAG_GENERATE_MMIC;
key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
key_dec_mode = KEY_CTL_TKIP;
break;
case WLAN_CIPHER_SUITE_CCMP:
key_dec_mode = KEY_CTL_CCMP;
key->flags |= IEEE80211_KEY_FLAG_GENERATE_IV;
}
if (key->flags & IEEE80211_KEY_FLAG_PAIRWISE) {
vnt_set_keymode(hw, mac_addr,
key, VNT_KEY_PAIRWISE, key_dec_mode, true);
} else {
vnt_set_keymode(hw, mac_addr,
key, VNT_KEY_DEFAULTKEY, key_dec_mode, true);
vnt_set_keymode(hw, (u8 *)conf->bssid,
key, VNT_KEY_GROUP_ADDRESS, key_dec_mode, true);
}
return 0;
}

View File

@ -30,6 +30,8 @@
#ifndef __KEY_H__
#define __KEY_H__
#include <net/mac80211.h>
#include "ttype.h"
#include "tether.h"
#include "80211mgr.h"
@ -53,6 +55,14 @@
#define KEY_CTL_CCMP 0x03
#define KEY_CTL_INVALID 0xFF
#define VNT_KEY_DEFAULTKEY 0x1
#define VNT_KEY_GROUP_ADDRESS 0x2
#define VNT_KEY_ALLGROUP 0x4
#define VNT_KEY_GROUP 0x40
#define VNT_KEY_PAIRWISE 0x00
#define VNT_KEY_ONFLY 0x8000
#define VNT_KEY_ONFLY_ALL 0x4000
typedef struct tagSKeyItem {
bool bKeyValid;
unsigned long uKeyLength;
@ -173,4 +183,11 @@ bool KeybSetAllGroupKey(
unsigned char byLocalID
);
struct vnt_private;
int vnt_key_init_table(struct vnt_private *);
int vnt_set_keys(struct ieee80211_hw *hw, struct ieee80211_sta *sta,
struct ieee80211_vif *vif, struct ieee80211_key_conf *key);
#endif // __KEY_H__