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Commit fee7506a authored by Malcolm Priestley's avatar Malcolm Priestley Committed by Greg Kroah-Hartman
Browse files

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: default avatarMalcolm Priestley <tvboxspy@gmail.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 33b1c8c1

drivers/staging/vt6655/device.h

+1 −0
Original line number Diff line number Diff line
@@ -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;

drivers/staging/vt6655/key.c

+136 −0
Original line number Diff line number Diff line
@@ -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;

}

drivers/staging/vt6655/key.h

+17 −0
Original line number Diff line number Diff line
@@ -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__