- return count;
-}
-
-static void lbs_parse_bssid(char *buf, size_t count,
- struct lbs_ioctl_user_scan_cfg *scan_cfg)
-{
- char *hold;
- unsigned int mac[ETH_ALEN];
-
- hold = strstr(buf, "bssid=");
- if (!hold)
- return;
- hold += 6;
- sscanf(hold, MAC_FMT, mac, mac+1, mac+2, mac+3, mac+4, mac+5);
- memcpy(scan_cfg->bssid, mac, ETH_ALEN);
-}
-
-static void lbs_parse_ssid(char *buf, size_t count,
- struct lbs_ioctl_user_scan_cfg *scan_cfg)
-{
- char *hold, *end;
- ssize_t size;
-
- hold = strstr(buf, "ssid=");
- if (!hold)
- return;
- hold += 5;
- end = strchr(hold, ' ');
- if (!end)
- end = buf + count - 1;
-
- size = min((size_t)IW_ESSID_MAX_SIZE, (size_t) (end - hold));
- strncpy(scan_cfg->ssid, hold, size);
-
- return;
-}
-
-static int lbs_parse_clear(char *buf, size_t count, const char *tag)
-{
- char *hold;
- int val;
-
- hold = strstr(buf, tag);
- if (!hold)
- return 0;
- hold += strlen(tag);
- sscanf(hold, "%d", &val);
-
- if (val != 0)
- val = 1;
-
- return val;
-}
-
-static int lbs_parse_dur(char *buf, size_t count,
- struct lbs_ioctl_user_scan_cfg *scan_cfg)
-{
- char *hold;
- int val;
-
- hold = strstr(buf, "dur=");
- if (!hold)
- return 0;
- hold += 4;
- sscanf(hold, "%d", &val);
-
- return val;
-}
-
-static void lbs_parse_type(char *buf, size_t count,
- struct lbs_ioctl_user_scan_cfg *scan_cfg)
-{
- char *hold;
- int val;
-
- hold = strstr(buf, "type=");
- if (!hold)
- return;
- hold += 5;
- sscanf(hold, "%d", &val);
-
- /* type=1,2 or 3 */
- if (val < 1 || val > 3)
- return;
-
- scan_cfg->bsstype = val;
-
- return;
-}
-
-static ssize_t lbs_setuserscan(struct file *file,
- const char __user *userbuf,
- size_t count, loff_t *ppos)
-{
- struct lbs_private *priv = file->private_data;
- ssize_t res, buf_size;
- struct lbs_ioctl_user_scan_cfg *scan_cfg;
- union iwreq_data wrqu;
- int dur;
- char *buf = (char *)get_zeroed_page(GFP_KERNEL);
-
- if (!buf)
- return -ENOMEM;
-
- buf_size = min(count, len - 1);
- if (copy_from_user(buf, userbuf, buf_size)) {
- res = -EFAULT;
- goto out_buf;
- }
-
- scan_cfg = kzalloc(sizeof(struct lbs_ioctl_user_scan_cfg), GFP_KERNEL);
- if (!scan_cfg) {
- res = -ENOMEM;
- goto out_buf;
- }
- res = count;
-
- scan_cfg->bsstype = LBS_SCAN_BSS_TYPE_ANY;
-
- dur = lbs_parse_dur(buf, count, scan_cfg);
- lbs_parse_bssid(buf, count, scan_cfg);
- scan_cfg->clear_bssid = lbs_parse_clear(buf, count, "clear_bssid=");
- lbs_parse_ssid(buf, count, scan_cfg);
- scan_cfg->clear_ssid = lbs_parse_clear(buf, count, "clear_ssid=");
- lbs_parse_type(buf, count, scan_cfg);
-
- lbs_scan_networks(priv, scan_cfg, 1);
- wait_event_interruptible(priv->cmd_pending,
- priv->surpriseremoved || !priv->last_scanned_channel);
-
- if (priv->surpriseremoved)
- goto out_scan_cfg;
-
- memset(&wrqu, 0x00, sizeof(union iwreq_data));
- wireless_send_event(priv->dev, SIOCGIWSCAN, &wrqu, NULL);
-
- out_scan_cfg:
- kfree(scan_cfg);
- out_buf:
- free_page((unsigned long)buf);
- return res;
projects / openwrt.git / blobdiff