Staging: wlan-ng: refactor p80211wext.c to reduce text size.

Refactor the wext interface to reduce lines of code & module text size.

- add a helper function p80211wext_getmib
- rename p80211wext_dorequest to p80211wext_setmib
- refactor wext to call the get/set mib helpers and so reduce repeated code.

size reported text reduction :-
   text	   data	    bss	    dec	    hex	filename
   8343	    720	      0	   9063	   2367	p80211wext.o.patch
   9907	    720	      0	  10631	   2987	p80211wext.o.orig

Tested on x86_32 laptop, everything works correctly using NetworkManager,
and iwconfig & iwlist return sensible results when reading from the card.

Signed-off-by: Richard Kennedy <richard@rsk.demon.co.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
This commit is contained in:
Richard Kennedy 2010-03-17 14:40:57 +00:00 committed by Greg Kroah-Hartman
parent 044bc96bef
commit 51b2a02869
1 changed files with 116 additions and 182 deletions

View File

@ -125,22 +125,42 @@ static int qual_as_percent(int snr)
return 100;
}
static int p80211wext_dorequest(wlandevice_t *wlandev, u32 did, u32 data)
static int p80211wext_setmib(wlandevice_t *wlandev, u32 did, u32 data)
{
p80211msg_dot11req_mibset_t msg;
p80211item_uint32_t mibitem;
p80211item_uint32_t *mibitem =
(p80211item_uint32_t *)&msg.mibattribute.data;
int result;
msg.msgcode = DIDmsg_dot11req_mibset;
memset(&mibitem, 0, sizeof(mibitem));
mibitem.did = did;
mibitem.data = data;
memcpy(&msg.mibattribute.data, &mibitem, sizeof(mibitem));
memset(mibitem, 0, sizeof(*mibitem));
mibitem->did = did;
mibitem->data = data;
result = p80211req_dorequest(wlandev, (u8 *) &msg);
return result;
}
/*
* get a 32 bit mib value
*/
static int p80211wext_getmib(wlandevice_t *wlandev, u32 did, u32 *data)
{
p80211msg_dot11req_mibset_t msg;
p80211item_uint32_t *mibitem =
(p80211item_uint32_t *)&msg.mibattribute.data;
int result;
msg.msgcode = DIDmsg_dot11req_mibget;
memset(mibitem, 0, sizeof(*mibitem));
mibitem->did = did;
result = p80211req_dorequest(wlandev, (u8 *) &msg);
if (!result)
*data = mibitem->data;
return result;
}
static int p80211wext_autojoin(wlandevice_t *wlandev)
{
p80211msg_lnxreq_autojoin_t msg;
@ -262,32 +282,26 @@ static int p80211wext_giwfreq(netdevice_t *dev,
struct iw_freq *freq, char *extra)
{
wlandevice_t *wlandev = dev->ml_priv;
p80211item_uint32_t mibitem;
p80211msg_dot11req_mibset_t msg;
int result;
int err = 0;
unsigned int value;
msg.msgcode = DIDmsg_dot11req_mibget;
memset(&mibitem, 0, sizeof(mibitem));
mibitem.did = DIDmib_dot11phy_dot11PhyDSSSTable_dot11CurrentChannel;
memcpy(&msg.mibattribute.data, &mibitem, sizeof(mibitem));
result = p80211req_dorequest(wlandev, (u8 *) &msg);
result = p80211wext_getmib(wlandev,
DIDmib_dot11phy_dot11PhyDSSSTable_dot11CurrentChannel,
&value);
if (result) {
err = -EFAULT;
goto exit;
}
memcpy(&mibitem, &msg.mibattribute.data, sizeof(mibitem));
if (mibitem.data > NUM_CHANNELS) {
if (value > NUM_CHANNELS) {
err = -EFAULT;
goto exit;
}
/* convert into frequency instead of a channel */
freq->e = 1;
freq->m = p80211_channel_to_mhz(mibitem.data, 0) * 100000;
freq->m = p80211_channel_to_mhz(value, 0) * 100000;
exit:
return err;
@ -298,28 +312,23 @@ static int p80211wext_siwfreq(netdevice_t *dev,
struct iw_freq *freq, char *extra)
{
wlandevice_t *wlandev = dev->ml_priv;
p80211item_uint32_t mibitem;
p80211msg_dot11req_mibset_t msg;
int result;
int err = 0;
unsigned int value;
if (!wlan_wext_write) {
err = (-EOPNOTSUPP);
err = -EOPNOTSUPP;
goto exit;
}
msg.msgcode = DIDmsg_dot11req_mibset;
memset(&mibitem, 0, sizeof(mibitem));
mibitem.did = DIDmib_dot11phy_dot11PhyDSSSTable_dot11CurrentChannel;
mibitem.status = P80211ENUM_msgitem_status_data_ok;
if ((freq->e == 0) && (freq->m <= 1000))
mibitem.data = freq->m;
value = freq->m;
else
mibitem.data = p80211_mhz_to_channel(freq->m);
value = p80211_mhz_to_channel(freq->m);
memcpy(&msg.mibattribute.data, &mibitem, sizeof(mibitem));
result = p80211req_dorequest(wlandev, (u8 *) &msg);
result = p80211wext_setmib(wlandev,
DIDmib_dot11phy_dot11PhyDSSSTable_dot11CurrentChannel,
value);
if (result) {
err = -EFAULT;
@ -359,13 +368,11 @@ static int p80211wext_siwmode(netdevice_t *dev,
__u32 *mode, char *extra)
{
wlandevice_t *wlandev = dev->ml_priv;
p80211item_uint32_t mibitem;
p80211msg_dot11req_mibset_t msg;
int result;
int err = 0;
if (!wlan_wext_write) {
err = (-EOPNOTSUPP);
err = -EOPNOTSUPP;
goto exit;
}
@ -396,16 +403,11 @@ static int p80211wext_siwmode(netdevice_t *dev,
}
/* Set Operation mode to the PORT TYPE RID */
msg.msgcode = DIDmsg_dot11req_mibset;
memset(&mibitem, 0, sizeof(mibitem));
mibitem.did = DIDmib_p2_p2Static_p2CnfPortType;
mibitem.data = (*mode == IW_MODE_ADHOC) ? 0 : 1;
memcpy(&msg.mibattribute.data, &mibitem, sizeof(mibitem));
result = p80211req_dorequest(wlandev, (u8 *) &msg);
result = p80211wext_setmib(wlandev,
DIDmib_p2_p2Static_p2CnfPortType,
(*mode == IW_MODE_ADHOC) ? 0 : 1);
if (result)
err = -EFAULT;
exit:
return err;
}
@ -562,9 +564,9 @@ static int p80211wext_siwencode(netdevice_t *dev,
/* Set current key number only if no keys are given */
if (erq->flags & IW_ENCODE_NOKEY) {
result =
p80211wext_dorequest(wlandev,
DIDmib_dot11smt_dot11PrivacyTable_dot11WEPDefaultKeyID,
i);
p80211wext_setmib(wlandev,
DIDmib_dot11smt_dot11PrivacyTable_dot11WEPDefaultKeyID,
i);
if (result) {
err = -EFAULT;
@ -586,7 +588,6 @@ static int p80211wext_siwencode(netdevice_t *dev,
-------------------------------------------------------------*/
if (erq->length > 0) {
/* copy the key from the driver cache as the keys are read-only MIBs */
wlandev->wep_keylens[i] = erq->length;
memcpy(wlandev->wep_keys[i], key, erq->length);
@ -636,12 +637,12 @@ static int p80211wext_siwencode(netdevice_t *dev,
/* Check the PrivacyInvoked flag */
if (erq->flags & IW_ENCODE_DISABLED) {
result =
p80211wext_dorequest(wlandev,
p80211wext_setmib(wlandev,
DIDmib_dot11smt_dot11PrivacyTable_dot11PrivacyInvoked,
P80211ENUM_truth_false);
} else {
result =
p80211wext_dorequest(wlandev,
p80211wext_setmib(wlandev,
DIDmib_dot11smt_dot11PrivacyTable_dot11PrivacyInvoked,
P80211ENUM_truth_true);
}
@ -660,12 +661,12 @@ static int p80211wext_siwencode(netdevice_t *dev,
*/
if (erq->flags & IW_ENCODE_RESTRICTED) {
result =
p80211wext_dorequest(wlandev,
p80211wext_setmib(wlandev,
DIDmib_dot11smt_dot11PrivacyTable_dot11ExcludeUnencrypted,
P80211ENUM_truth_true);
} else if (erq->flags & IW_ENCODE_OPEN) {
result =
p80211wext_dorequest(wlandev,
p80211wext_setmib(wlandev,
DIDmib_dot11smt_dot11PrivacyTable_dot11ExcludeUnencrypted,
P80211ENUM_truth_false);
}
@ -767,24 +768,16 @@ static int p80211wext_giwrate(netdevice_t *dev,
struct iw_param *rrq, char *extra)
{
wlandevice_t *wlandev = dev->ml_priv;
p80211item_uint32_t mibitem;
p80211msg_dot11req_mibset_t msg;
int result;
int err = 0;
unsigned int value;
msg.msgcode = DIDmsg_dot11req_mibget;
memset(&mibitem, 0, sizeof(mibitem));
mibitem.did = DIDmib_p2_p2MAC_p2CurrentTxRate;
memcpy(&msg.mibattribute.data, &mibitem, sizeof(mibitem));
result = p80211req_dorequest(wlandev, (u8 *) &msg);
result = p80211wext_getmib(wlandev, DIDmib_p2_p2MAC_p2CurrentTxRate, &value);
if (result) {
err = -EFAULT;
goto exit;
}
memcpy(&mibitem, &msg.mibattribute.data, sizeof(mibitem));
rrq->fixed = 0; /* can it change? */
rrq->disabled = 0;
rrq->value = 0;
@ -794,7 +787,7 @@ static int p80211wext_giwrate(netdevice_t *dev,
#define HFA384x_RATEBIT_5dot5 ((u16)4)
#define HFA384x_RATEBIT_11 ((u16)8)
switch (mibitem.data) {
switch (value) {
case HFA384x_RATEBIT_1:
rrq->value = 1000000;
break;
@ -819,25 +812,19 @@ static int p80211wext_giwrts(netdevice_t *dev,
struct iw_param *rts, char *extra)
{
wlandevice_t *wlandev = dev->ml_priv;
p80211item_uint32_t mibitem;
p80211msg_dot11req_mibset_t msg;
int result;
int err = 0;
unsigned int value;
msg.msgcode = DIDmsg_dot11req_mibget;
memset(&mibitem, 0, sizeof(mibitem));
mibitem.did = DIDmib_dot11mac_dot11OperationTable_dot11RTSThreshold;
memcpy(&msg.mibattribute.data, &mibitem, sizeof(mibitem));
result = p80211req_dorequest(wlandev, (u8 *) &msg);
result = p80211wext_getmib(wlandev,
DIDmib_dot11mac_dot11OperationTable_dot11RTSThreshold,
&value);
if (result) {
err = -EFAULT;
goto exit;
}
memcpy(&mibitem, &msg.mibattribute.data, sizeof(mibitem));
rts->value = mibitem.data;
rts->value = value;
rts->disabled = (rts->value == 2347);
rts->fixed = 1;
@ -850,27 +837,23 @@ static int p80211wext_siwrts(netdevice_t *dev,
struct iw_param *rts, char *extra)
{
wlandevice_t *wlandev = dev->ml_priv;
p80211item_uint32_t mibitem;
p80211msg_dot11req_mibset_t msg;
int result;
int err = 0;
unsigned int value;
if (!wlan_wext_write) {
err = (-EOPNOTSUPP);
err = -EOPNOTSUPP;
goto exit;
}
msg.msgcode = DIDmsg_dot11req_mibget;
memset(&mibitem, 0, sizeof(mibitem));
mibitem.did = DIDmib_dot11mac_dot11OperationTable_dot11RTSThreshold;
if (rts->disabled)
mibitem.data = 2347;
value = 2347;
else
mibitem.data = rts->value;
memcpy(&msg.mibattribute.data, &mibitem, sizeof(mibitem));
result = p80211req_dorequest(wlandev, (u8 *) &msg);
value = rts->value;
result = p80211wext_setmib(wlandev,
DIDmib_dot11mac_dot11OperationTable_dot11RTSThreshold,
value);
if (result) {
err = -EFAULT;
goto exit;
@ -885,26 +868,19 @@ static int p80211wext_giwfrag(netdevice_t *dev,
struct iw_param *frag, char *extra)
{
wlandevice_t *wlandev = dev->ml_priv;
p80211item_uint32_t mibitem;
p80211msg_dot11req_mibset_t msg;
int result;
int err = 0;
unsigned int value;
msg.msgcode = DIDmsg_dot11req_mibget;
memset(&mibitem, 0, sizeof(mibitem));
mibitem.did =
DIDmib_dot11mac_dot11OperationTable_dot11FragmentationThreshold;
memcpy(&msg.mibattribute.data, &mibitem, sizeof(mibitem));
result = p80211req_dorequest(wlandev, (u8 *) &msg);
result = p80211wext_getmib(wlandev,
DIDmib_dot11mac_dot11OperationTable_dot11FragmentationThreshold,
&value);
if (result) {
err = -EFAULT;
goto exit;
}
memcpy(&mibitem, &msg.mibattribute.data, sizeof(mibitem));
frag->value = mibitem.data;
frag->value = value;
frag->disabled = (frag->value == 2346);
frag->fixed = 1;
@ -917,28 +893,23 @@ static int p80211wext_siwfrag(netdevice_t *dev,
struct iw_param *frag, char *extra)
{
wlandevice_t *wlandev = dev->ml_priv;
p80211item_uint32_t mibitem;
p80211msg_dot11req_mibset_t msg;
int result;
int err = 0;
int value;
if (!wlan_wext_write) {
err = (-EOPNOTSUPP);
goto exit;
}
msg.msgcode = DIDmsg_dot11req_mibset;
memset(&mibitem, 0, sizeof(mibitem));
mibitem.did =
DIDmib_dot11mac_dot11OperationTable_dot11FragmentationThreshold;
if (frag->disabled)
mibitem.data = 2346;
value = 2346;
else
mibitem.data = frag->value;
value = frag->value;
memcpy(&msg.mibattribute.data, &mibitem, sizeof(mibitem));
result = p80211req_dorequest(wlandev, (u8 *) &msg);
result = p80211wext_setmib(wlandev,
DIDmib_dot11mac_dot11OperationTable_dot11FragmentationThreshold,
value);
if (result) {
err = -EFAULT;
@ -962,56 +933,40 @@ static int p80211wext_giwretry(netdevice_t *dev,
struct iw_param *rrq, char *extra)
{
wlandevice_t *wlandev = dev->ml_priv;
p80211item_uint32_t mibitem;
p80211msg_dot11req_mibset_t msg;
int result;
int err = 0;
u16 shortretry, longretry, lifetime;
unsigned int value;
msg.msgcode = DIDmsg_dot11req_mibget;
memset(&mibitem, 0, sizeof(mibitem));
mibitem.did = DIDmib_dot11mac_dot11OperationTable_dot11ShortRetryLimit;
memcpy(&msg.mibattribute.data, &mibitem, sizeof(mibitem));
result = p80211req_dorequest(wlandev, (u8 *) &msg);
result = p80211wext_getmib(wlandev,
DIDmib_dot11mac_dot11OperationTable_dot11ShortRetryLimit,
&value);
if (result) {
err = -EFAULT;
goto exit;
}
memcpy(&mibitem, &msg.mibattribute.data, sizeof(mibitem));
shortretry = mibitem.data;
mibitem.did = DIDmib_dot11mac_dot11OperationTable_dot11LongRetryLimit;
memcpy(&msg.mibattribute.data, &mibitem, sizeof(mibitem));
result = p80211req_dorequest(wlandev, (u8 *) &msg);
shortretry = value;
result = p80211wext_getmib(wlandev,
DIDmib_dot11mac_dot11OperationTable_dot11LongRetryLimit,
&value);
if (result) {
err = -EFAULT;
goto exit;
}
memcpy(&mibitem, &msg.mibattribute.data, sizeof(mibitem));
longretry = mibitem.data;
mibitem.did =
DIDmib_dot11mac_dot11OperationTable_dot11MaxTransmitMSDULifetime;
memcpy(&msg.mibattribute.data, &mibitem, sizeof(mibitem));
result = p80211req_dorequest(wlandev, (u8 *) &msg);
longretry = value;
result = p80211wext_getmib(wlandev,
DIDmib_dot11mac_dot11OperationTable_dot11MaxTransmitMSDULifetime,
&value);
if (result) {
err = -EFAULT;
goto exit;
}
memcpy(&mibitem, &msg.mibattribute.data, sizeof(mibitem));
lifetime = mibitem.data;
lifetime = value;
rrq->disabled = 0;
@ -1044,8 +999,7 @@ static int p80211wext_siwretry(netdevice_t *dev,
p80211msg_dot11req_mibset_t msg;
int result;
int err = 0;
memset(&mibitem, 0, sizeof(mibitem));
unsigned int value;
if (!wlan_wext_write) {
err = (-EOPNOTSUPP);
@ -1060,26 +1014,20 @@ static int p80211wext_siwretry(netdevice_t *dev,
msg.msgcode = DIDmsg_dot11req_mibset;
if ((rrq->flags & IW_RETRY_TYPE) == IW_RETRY_LIFETIME) {
mibitem.did =
DIDmib_dot11mac_dot11OperationTable_dot11MaxTransmitMSDULifetime;
mibitem.data = rrq->value /= 1024;
memcpy(&msg.mibattribute.data, &mibitem, sizeof(mibitem));
result = p80211req_dorequest(wlandev, (u8 *) &msg);
value = rrq->value /= 1024;
result = p80211wext_setmib(wlandev,
DIDmib_dot11mac_dot11OperationTable_dot11MaxTransmitMSDULifetime,
value);
if (result) {
err = -EFAULT;
goto exit;
}
} else {
if (rrq->flags & IW_RETRY_LONG) {
mibitem.did =
DIDmib_dot11mac_dot11OperationTable_dot11LongRetryLimit;
mibitem.data = rrq->value;
memcpy(&msg.mibattribute.data, &mibitem,
sizeof(mibitem));
result = p80211req_dorequest(wlandev, (u8 *) &msg);
result = p80211wext_setmib(wlandev,
DIDmib_dot11mac_dot11OperationTable_dot11LongRetryLimit,
rrq->value);
if (result) {
err = -EFAULT;
@ -1088,13 +1036,9 @@ static int p80211wext_siwretry(netdevice_t *dev,
}
if (rrq->flags & IW_RETRY_SHORT) {
mibitem.did =
DIDmib_dot11mac_dot11OperationTable_dot11ShortRetryLimit;
mibitem.data = rrq->value;
memcpy(&msg.mibattribute.data, &mibitem,
sizeof(mibitem));
result = p80211req_dorequest(wlandev, (u8 *) &msg);
result = p80211wext_setmib(wlandev,
DIDmib_dot11mac_dot11OperationTable_dot11ShortRetryLimit,
rrq->value);
if (result) {
err = -EFAULT;
@ -1117,22 +1061,20 @@ static int p80211wext_siwtxpow(netdevice_t *dev,
p80211msg_dot11req_mibset_t msg;
int result;
int err = 0;
unsigned int value;
if (!wlan_wext_write) {
err = (-EOPNOTSUPP);
goto exit;
}
msg.msgcode = DIDmsg_dot11req_mibset;
memset(&mibitem, 0, sizeof(mibitem));
mibitem.did =
DIDmib_dot11phy_dot11PhyTxPowerTable_dot11CurrentTxPowerLevel;
if (rrq->fixed == 0)
mibitem.data = 30;
value = 30;
else
mibitem.data = rrq->value;
memcpy(&msg.mibattribute.data, &mibitem, sizeof(mibitem));
result = p80211req_dorequest(wlandev, (u8 *) &msg);
value = rrq->value;
result = p80211wext_setmib(wlandev,
DIDmib_dot11phy_dot11PhyTxPowerTable_dot11CurrentTxPowerLevel,
value);
if (result) {
err = -EFAULT;
@ -1148,33 +1090,25 @@ static int p80211wext_giwtxpow(netdevice_t *dev,
struct iw_param *rrq, char *extra)
{
wlandevice_t *wlandev = dev->ml_priv;
p80211item_uint32_t mibitem;
p80211msg_dot11req_mibset_t msg;
int result;
int err = 0;
unsigned int value;
msg.msgcode = DIDmsg_dot11req_mibget;
memset(&mibitem, 0, sizeof(mibitem));
mibitem.did =
DIDmib_dot11phy_dot11PhyTxPowerTable_dot11CurrentTxPowerLevel;
memcpy(&msg.mibattribute.data, &mibitem, sizeof(mibitem));
result = p80211req_dorequest(wlandev, (u8 *) &msg);
result = p80211wext_getmib(wlandev,
DIDmib_dot11phy_dot11PhyTxPowerTable_dot11CurrentTxPowerLevel,
&value);
if (result) {
err = -EFAULT;
goto exit;
}
memcpy(&mibitem, &msg.mibattribute.data, sizeof(mibitem));
/* XXX handle OFF by setting disabled = 1; */
rrq->flags = 0; /* IW_TXPOW_DBM; */
rrq->disabled = 0;
rrq->fixed = 0;
rrq->value = mibitem.data;
rrq->value = value;
exit:
return err;
@ -1479,7 +1413,7 @@ static int p80211wext_set_encodeext(struct net_device *dev,
}
pr_debug("setting default key (%d)\n", idx);
result =
p80211wext_dorequest(wlandev,
p80211wext_setmib(wlandev,
DIDmib_dot11smt_dot11PrivacyTable_dot11WEPDefaultKeyID,
idx);
if (result)
@ -1599,12 +1533,12 @@ static int p80211_wext_set_iwauth(struct net_device *dev,
pr_debug("drop_unencrypted %d\n", param->value);
if (param->value)
result =
p80211wext_dorequest(wlandev,
p80211wext_setmib(wlandev,
DIDmib_dot11smt_dot11PrivacyTable_dot11ExcludeUnencrypted,
P80211ENUM_truth_true);
else
result =
p80211wext_dorequest(wlandev,
p80211wext_setmib(wlandev,
DIDmib_dot11smt_dot11PrivacyTable_dot11ExcludeUnencrypted,
P80211ENUM_truth_false);
break;
@ -1613,12 +1547,12 @@ static int p80211_wext_set_iwauth(struct net_device *dev,
pr_debug("privacy invoked %d\n", param->value);
if (param->value)
result =
p80211wext_dorequest(wlandev,
p80211wext_setmib(wlandev,
DIDmib_dot11smt_dot11PrivacyTable_dot11PrivacyInvoked,
P80211ENUM_truth_true);
else
result =
p80211wext_dorequest(wlandev,
p80211wext_setmib(wlandev,
DIDmib_dot11smt_dot11PrivacyTable_dot11PrivacyInvoked,
P80211ENUM_truth_false);