return ret;
}
-/* Note: currently, use hostapd ioctl from the Host AP driver for WPA
- * support. This is to be replaced with Linux wireless extensions once they
- * get WPA support. */
-
-/* Note II: please leave all this together as it will be easier to remove later,
- * once wireless extensions add WPA support -mcgrof */
-
-/* PRISM54_HOSTAPD ioctl() cmd: */
-enum {
- PRISM2_SET_ENCRYPTION = 6,
- PRISM2_HOSTAPD_SET_GENERIC_ELEMENT = 12,
- PRISM2_HOSTAPD_MLME = 13,
- PRISM2_HOSTAPD_SCAN_REQ = 14,
-};
-
#define PRISM54_SET_WPA SIOCIWFIRSTPRIV+12
-#define PRISM54_HOSTAPD SIOCIWFIRSTPRIV+25
-#define PRISM54_DROP_UNENCRYPTED SIOCIWFIRSTPRIV+26
-
-#define PRISM2_HOSTAPD_MAX_BUF_SIZE 1024
-#define PRISM2_HOSTAPD_GENERIC_ELEMENT_HDR_LEN \
- offsetof(struct prism2_hostapd_param, u.generic_elem.data)
-
-/* Maximum length for algorithm names (-1 for nul termination)
- * used in ioctl() */
-#define HOSTAP_CRYPT_ALG_NAME_LEN 16
-
-struct prism2_hostapd_param {
- u32 cmd;
- u8 sta_addr[ETH_ALEN];
- union {
- struct {
- u8 alg[HOSTAP_CRYPT_ALG_NAME_LEN];
- u32 flags;
- u32 err;
- u8 idx;
- u8 seq[8]; /* sequence counter (set: RX, get: TX) */
- u16 key_len;
- u8 key[0];
- } crypt;
- struct {
- u8 len;
- u8 data[0];
- } generic_elem;
- struct {
-#define MLME_STA_DEAUTH 0
-#define MLME_STA_DISASSOC 1
- u16 cmd;
- u16 reason_code;
- } mlme;
- struct {
- u8 ssid_len;
- u8 ssid[32];
- } scan_req;
- } u;
-};
-
-
-static int
-prism2_ioctl_set_encryption(struct net_device *dev,
- struct prism2_hostapd_param *param,
- int param_len)
-{
- islpci_private *priv = netdev_priv(dev);
- int rvalue = 0, force = 0;
- int authen = DOT11_AUTH_OS, invoke = 0, exunencrypt = 0;
- union oid_res_t r;
-
- /* with the new API, it's impossible to get a NULL pointer.
- * New version of iwconfig set the IW_ENCODE_NOKEY flag
- * when no key is given, but older versions don't. */
-
- if (param->u.crypt.key_len > 0) {
- /* we have a key to set */
- int index = param->u.crypt.idx;
- int current_index;
- struct obj_key key = { DOT11_PRIV_TKIP, 0, "" };
-
- /* get the current key index */
- rvalue = mgt_get_request(priv, DOT11_OID_DEFKEYID, 0, NULL, &r);
- current_index = r.u;
- /* Verify that the key is not marked as invalid */
- if (!(param->u.crypt.flags & IW_ENCODE_NOKEY)) {
- key.length = param->u.crypt.key_len > sizeof (param->u.crypt.key) ?
- sizeof (param->u.crypt.key) : param->u.crypt.key_len;
- memcpy(key.key, param->u.crypt.key, key.length);
- if (key.length == 32)
- /* we want WPA-PSK */
- key.type = DOT11_PRIV_TKIP;
- if ((index < 0) || (index > 3))
- /* no index provided use the current one */
- index = current_index;
-
- /* now send the key to the card */
- rvalue |=
- mgt_set_request(priv, DOT11_OID_DEFKEYX, index,
- &key);
- }
- /*
- * If a valid key is set, encryption should be enabled
- * (user may turn it off later).
- * This is also how "iwconfig ethX key on" works
- */
- if ((index == current_index) && (key.length > 0))
- force = 1;
- } else {
- int index = (param->u.crypt.flags & IW_ENCODE_INDEX) - 1;
- if ((index >= 0) && (index <= 3)) {
- /* we want to set the key index */
- rvalue |=
- mgt_set_request(priv, DOT11_OID_DEFKEYID, 0,
- &index);
- } else {
- if (!(param->u.crypt.flags & IW_ENCODE_MODE)) {
- /* we cannot do anything. Complain. */
- return -EINVAL;
- }
- }
- }
- /* now read the flags */
- if (param->u.crypt.flags & IW_ENCODE_DISABLED) {
- /* Encoding disabled,
- * authen = DOT11_AUTH_OS;
- * invoke = 0;
- * exunencrypt = 0; */
- }
- if (param->u.crypt.flags & IW_ENCODE_OPEN)
- /* Encode but accept non-encoded packets. No auth */
- invoke = 1;
- if ((param->u.crypt.flags & IW_ENCODE_RESTRICTED) || force) {
- /* Refuse non-encoded packets. Auth */
- authen = DOT11_AUTH_BOTH;
- invoke = 1;
- exunencrypt = 1;
- }
- /* do the change if requested */
- if ((param->u.crypt.flags & IW_ENCODE_MODE) || force) {
- rvalue |=
- mgt_set_request(priv, DOT11_OID_AUTHENABLE, 0, &authen);
- rvalue |=
- mgt_set_request(priv, DOT11_OID_PRIVACYINVOKED, 0, &invoke);
- rvalue |=
- mgt_set_request(priv, DOT11_OID_EXUNENCRYPTED, 0,
- &exunencrypt);
- }
- return rvalue;
-}
-
-static int
-prism2_ioctl_set_generic_element(struct net_device *ndev,
- struct prism2_hostapd_param *param,
- int param_len)
-{
- islpci_private *priv = netdev_priv(ndev);
- int max_len, len, alen, ret=0;
- struct obj_attachment *attach;
-
- len = param->u.generic_elem.len;
- max_len = param_len - PRISM2_HOSTAPD_GENERIC_ELEMENT_HDR_LEN;
- if (max_len < 0 || max_len < len)
- return -EINVAL;
-
- alen = sizeof(*attach) + len;
- attach = kzalloc(alen, GFP_KERNEL);
- if (attach == NULL)
- return -ENOMEM;
-
-#define WLAN_FC_TYPE_MGMT 0
-#define WLAN_FC_STYPE_ASSOC_REQ 0
-#define WLAN_FC_STYPE_REASSOC_REQ 2
-
- /* Note: endianness is covered by mgt_set_varlen */
-
- attach->type = (WLAN_FC_TYPE_MGMT << 2) |
- (WLAN_FC_STYPE_ASSOC_REQ << 4);
- attach->id = -1;
- attach->size = len;
- memcpy(attach->data, param->u.generic_elem.data, len);
-
- ret = mgt_set_varlen(priv, DOT11_OID_ATTACHMENT, attach, len);
-
- if (ret == 0) {
- attach->type = (WLAN_FC_TYPE_MGMT << 2) |
- (WLAN_FC_STYPE_REASSOC_REQ << 4);
-
- ret = mgt_set_varlen(priv, DOT11_OID_ATTACHMENT, attach, len);
-
- if (ret == 0)
- printk(KERN_DEBUG "%s: WPA IE Attachment was set\n",
- ndev->name);
- }
-
- kfree(attach);
- return ret;
-
-}
-
-static int
-prism2_ioctl_mlme(struct net_device *dev, struct prism2_hostapd_param *param)
-{
- return -EOPNOTSUPP;
-}
-
-static int
-prism2_ioctl_scan_req(struct net_device *ndev,
- struct prism2_hostapd_param *param)
-{
- islpci_private *priv = netdev_priv(ndev);
- struct iw_request_info info;
- int i, rvalue;
- struct obj_bsslist *bsslist;
- u32 noise = 0;
- char *extra = "";
- char *current_ev = "foo";
- union oid_res_t r;
-
- if (islpci_get_state(priv) < PRV_STATE_INIT) {
- /* device is not ready, fail gently */
- return 0;
- }
-
- /* first get the noise value. We will use it to report the link quality */
- rvalue = mgt_get_request(priv, DOT11_OID_NOISEFLOOR, 0, NULL, &r);
- noise = r.u;
-
- /* Ask the device for a list of known bss. We can report at most
- * IW_MAX_AP=64 to the range struct. But the device won't repport anything
- * if you change the value of IWMAX_BSS=24.
- */
- rvalue |= mgt_get_request(priv, DOT11_OID_BSSLIST, 0, NULL, &r);
- bsslist = r.ptr;
-
- info.cmd = PRISM54_HOSTAPD;
- info.flags = 0;
-
- /* ok now, scan the list and translate its info */
- for (i = 0; i < min(IW_MAX_AP, (int) bsslist->nr); i++)
- current_ev = prism54_translate_bss(ndev, &info, current_ev,
- extra + IW_SCAN_MAX_DATA,
- &(bsslist->bsslist[i]),
- noise);
- kfree(bsslist);
-
- return rvalue;
-}
-
-static int
-prism54_hostapd(struct net_device *ndev, struct iw_point *p)
-{
- struct prism2_hostapd_param *param;
- int ret = 0;
- u32 uwrq;
-
- printk(KERN_DEBUG "prism54_hostapd - len=%d\n", p->length);
- if (p->length < sizeof(struct prism2_hostapd_param) ||
- p->length > PRISM2_HOSTAPD_MAX_BUF_SIZE || !p->pointer)
- return -EINVAL;
-
- param = memdup_user(p->pointer, p->length);
- if (IS_ERR(param))
- return PTR_ERR(param);
-
- switch (param->cmd) {
- case PRISM2_SET_ENCRYPTION:
- printk(KERN_DEBUG "%s: Caught WPA supplicant set encryption request\n",
- ndev->name);
- ret = prism2_ioctl_set_encryption(ndev, param, p->length);
- break;
- case PRISM2_HOSTAPD_SET_GENERIC_ELEMENT:
- printk(KERN_DEBUG "%s: Caught WPA supplicant set WPA IE request\n",
- ndev->name);
- ret = prism2_ioctl_set_generic_element(ndev, param,
- p->length);
- break;
- case PRISM2_HOSTAPD_MLME:
- printk(KERN_DEBUG "%s: Caught WPA supplicant MLME request\n",
- ndev->name);
- ret = prism2_ioctl_mlme(ndev, param);
- break;
- case PRISM2_HOSTAPD_SCAN_REQ:
- printk(KERN_DEBUG "%s: Caught WPA supplicant scan request\n",
- ndev->name);
- ret = prism2_ioctl_scan_req(ndev, param);
- break;
- case PRISM54_SET_WPA:
- printk(KERN_DEBUG "%s: Caught WPA supplicant wpa init request\n",
- ndev->name);
- uwrq = 1;
- ret = prism54_set_wpa(ndev, NULL, &uwrq, NULL);
- break;
- case PRISM54_DROP_UNENCRYPTED:
- printk(KERN_DEBUG "%s: Caught WPA drop unencrypted request\n",
- ndev->name);
-#if 0
- uwrq = 0x01;
- mgt_set(priv, DOT11_OID_EXUNENCRYPTED, &uwrq);
- down_write(&priv->mib_sem);
- mgt_commit(priv);
- up_write(&priv->mib_sem);
-#endif
- /* Not necessary, as set_wpa does it, should we just do it here though? */
- ret = 0;
- break;
- default:
- printk(KERN_DEBUG "%s: Caught a WPA supplicant request that is not supported\n",
- ndev->name);
- ret = -EOPNOTSUPP;
- break;
- }
-
- if (ret == 0 && copy_to_user(p->pointer, param, p->length))
- ret = -EFAULT;
-
- kfree(param);
-
- return ret;
-}
static int
prism54_set_wpa(struct net_device *ndev, struct iw_request_info *info,
.private_args = (struct iw_priv_args *) prism54_private_args,
.get_wireless_stats = prism54_get_wireless_stats,
};
-
-/* For wpa_supplicant */
-
-int
-prism54_ioctl(struct net_device *ndev, struct ifreq *rq, int cmd)
-{
- struct iwreq *wrq = (struct iwreq *) rq;
- int ret = -1;
- switch (cmd) {
- case PRISM54_HOSTAPD:
- if (!capable(CAP_NET_ADMIN))
- return -EPERM;
- ret = prism54_hostapd(ndev, &wrq->u.data);
- return ret;
- }
- return -EOPNOTSUPP;
-}
projects / kernel / kernel-generic.git / commitdiff