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Staging: rtl8192su: refactored EnableHWSecurityConfig8192 and setKey

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refactored EnableHWSecurityConfig8192 and setKey a bit by replacing
if...else if... else with switch...case

plus cosmetics

Signed-off-by: Florian Schilhabel <florian.c.schilhabel@googlemail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Florian Schilhabel
2010-03-18 15:16:47 +01:00
committed by Greg Kroah-Hartman
parent 33f84a8f21
commit 8dbe821edf
1 changed files with 69 additions and 52 deletions
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81
drivers/staging/rtl8192su/r8192U_core.c
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@@ -7617,34 +7617,48 @@ void EnableHWSecurityConfig8192(struct net_device *dev)
struct ieee80211_device *ieee = priv->ieee80211;
SECR_value = SCR_TxEncEnable | SCR_RxDecEnable;
#if 1
if (((KEY_TYPE_WEP40 == ieee->pairwise_key_type) || (KEY_TYPE_WEP104 == ieee->pairwise_key_type)) && (priv->ieee80211->auth_mode != 2))
{
switch (ieee->pairwise_key_type) {
case KEY_TYPE_WEP40:
case KEY_TYPE_WEP104:
if (priv->ieee80211->auth_mode != 2) {
SECR_value |= SCR_RxUseDK;
SECR_value |= SCR_TxUseDK;
}
else if ((ieee->iw_mode == IW_MODE_ADHOC) && (ieee->pairwise_key_type & (KEY_TYPE_CCMP | KEY_TYPE_TKIP)))
{
break;
case KEY_TYPE_TKIP:
case KEY_TYPE_CCMP:
if (ieee->iw_mode == IW_MODE_ADHOC) {
SECR_value |= SCR_RxUseDK;
SECR_value |= SCR_TxUseDK;
}
#endif
//add HWSec active enable here.
//default using hwsec. when peer AP is in N mode only and pairwise_key_type is none_aes(which HT_IOT_ACT_PURE_N_MODE indicates it), use software security. when peer AP is in b,g,n mode mixed and pairwise_key_type is none_aes, use g mode hw security. WB on 2008.7.4
break;
default:
break;
}
/*
* add HWSec active enable here.
* default using hwsec.
* when peer AP is in N mode only and pairwise_key_type is none_aes
* (which HT_IOT_ACT_PURE_N_MODE indicates it),
* use software security.
* when peer AP is in b,g,n mode mixed and pairwise_key_type is none_aes
* use g mode hw security.
*/
ieee->hwsec_active = 1;
if ((ieee->pHTInfo->IOTAction&HT_IOT_ACT_PURE_N_MODE) || !hwwep)//!ieee->hwsec_support) //add hwsec_support flag to totol control hw_sec on/off
{
/* add hwsec_support flag to totol control hw_sec on/off */
if ((ieee->pHTInfo->IOTAction&HT_IOT_ACT_PURE_N_MODE) || !hwwep) {
ieee->hwsec_active = 0;
SECR_value &= ~SCR_RxDecEnable;
}
RT_TRACE(COMP_SEC,"%s:, hwsec:%d, pairwise_key:%d, SECR_value:%x\n", __FUNCTION__, \
ieee->hwsec_active, ieee->pairwise_key_type, SECR_value);
{
write_nic_byte(dev, SECR, SECR_value);//SECR_value | SCR_UseDK );
}
RT_TRACE(COMP_SEC, "%s(): hwsec: %d, pairwise_key: %d, "
"SECR_value: %x",
__func__, ieee->hwsec_active,
ieee->pairwise_key_type, SECR_value);
write_nic_byte(dev, SECR, SECR_value); /* SECR_value | SCR_UseDK ); */
}
@@ -7660,50 +7674,53 @@ void setKey( struct net_device *dev,
u32 TargetContent = 0;
u16 usConfig = 0;
u8 i;
if (EntryNo >= TOTAL_CAM_ENTRY)
RT_TRACE(COMP_ERR, "cam entry exceeds in setKey()\n");
RT_TRACE(COMP_SEC, "====>to setKey(), dev:%p, EntryNo:%d, KeyIndex:%d, KeyType:%d, MacAddr%pM\n", dev,EntryNo, KeyIndex, KeyType, MacAddr);
if (EntryNo >= TOTAL_CAM_ENTRY)
RT_TRACE(COMP_ERR, "%s(): cam entry exceeds TOTAL_CAM_ENTRY",
__func__);
RT_TRACE(COMP_SEC, "%s(): dev: %p, EntryNo: %d, "
"KeyIndex: %d, KeyType: %d, MacAddr: %pM",
__func__, dev, EntryNo,
KeyIndex, KeyType, MacAddr);
if (DefaultKey)
usConfig |= BIT15 | (KeyType << 2);
else
usConfig |= BIT15 | (KeyType << 2) | KeyIndex;
// usConfig |= BIT15 | (KeyType<<2) | (DefaultKey<<5) | KeyIndex;
for (i = 0 ; i < CAM_CONTENT_COUNT; i++) {
TargetCommand = i + CAM_CONTENT_COUNT * EntryNo;
TargetCommand |= BIT31|BIT16;
if(i==0){//MAC|Config
switch (i) {
case 0: /* MAC|Config */
TargetContent = (u32)(*(MacAddr + 0)) << 16|
(u32)(*(MacAddr + 1)) << 24|
(u32)usConfig;
write_nic_dword(dev, WCAMI, TargetContent);
write_nic_dword(dev, RWCAM, TargetCommand);
// printk("setkey cam =%8x\n", read_cam(dev, i+6*EntryNo));
}
else if(i==1){//MAC
continue;
case 1: /* MAC */
TargetContent = (u32)(*(MacAddr + 2))|
(u32)(*(MacAddr + 3)) << 8|
(u32)(*(MacAddr + 4)) << 16|
(u32)(*(MacAddr + 5)) << 24;
write_nic_dword(dev, WCAMI, TargetContent);
write_nic_dword(dev, RWCAM, TargetCommand);
}
else {
//Key Material
continue;
default: /* Key Material */
if (KeyContent != NULL) {
write_nic_dword(dev, WCAMI, (u32)(*(KeyContent+i-2)) );
write_nic_dword(dev, RWCAM, TargetCommand);
write_nic_dword(dev, WCAMI,
(u32)(*(KeyContent+i-2)));
write_nic_dword(dev, RWCAM,
TargetCommand);
}
continue;
}
}
}
}
/***************************************************************************
------------------- module init / exit stubs ----------------
****************************************************************************/