diff options
Diffstat (limited to 'package/openwrt')
| -rw-r--r-- | package/openwrt/wlcompat.c | 166 |
1 files changed, 159 insertions, 7 deletions
diff --git a/package/openwrt/wlcompat.c b/package/openwrt/wlcompat.c index 3f2f40763..f96b98747 100644 --- a/package/openwrt/wlcompat.c +++ b/package/openwrt/wlcompat.c @@ -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) { |