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add wlcompat private calls for monitor mode and txpower override

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git-svn-id: svn://svn.openwrt.org/openwrt/trunk/openwrt@670 3c298f89-4303-0410-b956-a3cf2f4a3e73
This commit is contained in:
nbd 2005-04-18 07:47:40 +00:00
parent 8b196c907d
commit 68e6d1ea71
1 changed files with 159 additions and 7 deletions
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166
package/openwrt/wlcompat.c
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@ -42,6 +42,11 @@ const long channel_frequency[] = {
};
#define NUM_CHANNELS ( sizeof(channel_frequency) / sizeof(channel_frequency[0]) )
static int wlcompat_private_ioctl(struct net_device *dev,
struct iw_request_info *info,
union iwreq_data *wrqu,
char *extra);
static int wl_ioctl(struct net_device *dev, int cmd, void *buf, int len)
{
mm_segment_t old_fs = get_fs();
@ -59,6 +64,43 @@ static int wl_ioctl(struct net_device *dev, int cmd, void *buf, int len)
return ret;
}
static int wl_set_val(struct net_device *dev, char *var, void *val, int len)
{
char buf[128];
int buf_len;
/* check for overflow */
if ((buf_len = strlen(var)) + 1 + len > sizeof(buf))
return -1;
strcpy(buf, var);
buf_len += 1;
/* append int value onto the end of the name string */
memcpy(&buf[buf_len], val, len);
buf_len += len;
return wl_ioctl(dev, WLC_SET_VAR, buf, buf_len);
}
static int wl_get_val(struct net_device *dev, char *var, void *val, int len)
{
char buf[128];
int ret;
/* check for overflow */
if (strlen(var) + 1 > sizeof(buf) || len > sizeof(buf))
return -1;
strcpy(buf, var);
if ((ret = wl_ioctl(dev, WLC_GET_VAR, buf, sizeof(buf))))
return ret;
memcpy(val, buf, len);
return 0;
}
static int wlcompat_ioctl_getiwrange(struct net_device *dev,
char *extra)
{
@ -317,9 +359,11 @@ static int wlcompat_ioctl(struct net_device *dev,
}
case SIOCGIWTXPOW:
{
wrqu->txpower.value = 0;
if (wl_ioctl(dev,WLC_GET_TXPWR, &(wrqu->txpower.value), sizeof(int)) < 0)
if (wl_get_val(dev, "qtxpower", &(wrqu->txpower.value), sizeof(int)) < 0)
return -EINVAL;
wrqu->txpower.value &= ~WL_TXPWR_OVERRIDE;
wrqu->txpower.fixed = 0;
wrqu->txpower.disabled = 0;
wrqu->txpower.flags = IW_TXPOW_MWATT;
@ -327,10 +371,17 @@ static int wlcompat_ioctl(struct net_device *dev,
}
case SIOCSIWTXPOW:
{
int override;
if (wl_get_val(dev, "qtxpower", &override, sizeof(int)) < 0)
return -EINVAL;
wrqu->txpower.value |= override & WL_TXPWR_OVERRIDE;
if (wrqu->txpower.flags != IW_TXPOW_MWATT)
return -EINVAL;
if (wl_ioctl(dev, WLC_SET_TXPWR, &wrqu->txpower.value, sizeof(int)) < 0)
if (wl_set_val(dev, "qtxpower", &wrqu->txpower.value, sizeof(int)) < 0)
return -EINVAL;
}
case SIOCGIWENCODE:
@ -431,6 +482,9 @@ static int wlcompat_ioctl(struct net_device *dev,
}
default:
{
if (info->cmd >= SIOCIWFIRSTPRIV)
return wlcompat_private_ioctl(dev, info, wrqu, extra);
return -EINVAL;
}
}
@ -485,16 +539,114 @@ static const iw_handler wlcompat_handler[] = {
wlcompat_ioctl, /* SIOCGIWENCODE */
};
#define PRIV_SET_MONITOR SIOCIWFIRSTPRIV + 0
#define PRIV_GET_MONITOR SIOCIWFIRSTPRIV + 1
#define PRIV_SET_TXPWR_LIMIT SIOCIWFIRSTPRIV + 2
#define PRIV_GET_TXPWR_LIMIT SIOCIWFIRSTPRIV + 3
static const struct iw_priv_args wlcompat_private_args[] =
{
{ PRIV_SET_MONITOR,
IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
0,
"set_monitor"
},
{ PRIV_GET_MONITOR,
0,
IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
"get_monitor"
},
{ PRIV_SET_TXPWR_LIMIT,
IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
0,
"set_txpwr_limit"
},
{ PRIV_GET_TXPWR_LIMIT,
0,
IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
"get_txpwr_limit"
}
};
static int wlcompat_private_ioctl(struct net_device *dev,
struct iw_request_info *info,
union iwreq_data *wrqu,
char *extra)
{
int *value = (int *) wrqu->name;
switch (info->cmd) {
case PRIV_SET_MONITOR:
{
if (wl_ioctl(dev, WLC_SET_MONITOR, value, sizeof(int)) < 0)
return -EINVAL;
break;
}
case PRIV_GET_MONITOR:
{
if (wl_ioctl(dev, WLC_GET_MONITOR, extra, sizeof(int)) < 0)
return -EINVAL;
break;
}
case PRIV_SET_TXPWR_LIMIT:
{
int val;
if (wl_get_val(dev, "qtxpower", &val, sizeof(int)) < 0)
return -EINVAL;
if (*extra > 0)
val |= WL_TXPWR_OVERRIDE;
else
val &= ~WL_TXPWR_OVERRIDE;
if (wl_set_val(dev, "qtxpower", &val, sizeof(int)) < 0)
return -EINVAL;
break;
}
case PRIV_GET_TXPWR_LIMIT:
{
if (wl_get_val(dev, "qtxpower", value, sizeof(int)) < 0)
return -EINVAL;
*value = ((*value & WL_TXPWR_OVERRIDE) == WL_TXPWR_OVERRIDE ? 1 : 0);
break;
}
default:
{
return -EINVAL;
}
}
return 0;
}
static const iw_handler wlcompat_private[] =
{
wlcompat_private_ioctl,
wlcompat_private_ioctl,
wlcompat_private_ioctl,
wlcompat_private_ioctl
};
static const struct iw_handler_def wlcompat_handler_def =
{
.standard = (iw_handler *) wlcompat_handler,
.num_standard = sizeof(wlcompat_handler)/sizeof(iw_handler),
.private = NULL,
.num_private = 0,
.private_args = NULL,
.num_private_args = 0,
.private = wlcompat_private,
.num_private = sizeof(wlcompat_private)/sizeof(iw_handler),
.private_args = wlcompat_private_args,
.num_private_args = sizeof(wlcompat_private_args)/sizeof(struct iw_priv_args),
};
#ifdef DEBUG
static int (*old_ioctl)(struct net_device *dev, struct ifreq *ifr, int cmd);
void print_buffer(int len, unsigned char *buf) {