static void wpa_driver_ndis_event_process(struct wpa_driver_ndis_data *drv,
u8 *buf, size_t len)
{
u8 *pos, *data = NULL;
enum event_types type;
size_t data_len = 0;
wpa_hexdump(MSG_MSGDUMP, "NDIS: received event data", buf, len);
if (len < sizeof(int))
return;
type = *((int *) buf);
pos = buf + sizeof(int);
wpa_printf(MSG_DEBUG, "NDIS: event - type %d", type);
if (buf + len - pos > 2) {
data_len = (int) *pos++ << 8;
data_len += *pos++;
if (data_len > (size_t) (buf + len - pos)) {
wpa_printf(MSG_DEBUG, "NDIS: event data overflow");
return;
}
data = pos;
wpa_hexdump(MSG_MSGDUMP, "NDIS: event data", data, data_len);
}
switch (type) {
case EVENT_CONNECT:
wpa_driver_ndis_event_connect(drv);
break;
case EVENT_DISCONNECT:
wpa_driver_ndis_event_disconnect(drv);
break;
case EVENT_MEDIA_SPECIFIC:
wpa_driver_ndis_event_media_specific(drv, data, data_len);
break;
case EVENT_ADAPTER_ARRIVAL:
wpa_driver_ndis_event_adapter_arrival(drv);
break;
case EVENT_ADAPTER_REMOVAL:
wpa_driver_ndis_event_adapter_removal(drv);
break;
}
}
static void wpa_driver_ndis_event_cb(int sock, void *eloop_ctx, void *sock_ctx)
{
struct wpa_driver_ndis_data *drv = eloop_ctx;
u8 buf[512], *pos, *data = NULL;
int res, i, desc_len;
enum event_types type;
unsigned char instance_len;
char *instance;
size_t data_len = 0;
res = recv(sock, buf, sizeof(buf), 0);
if (res < 0) {
perror("wpa_driver_ndis_event_cb - recv");
return;
}
wpa_hexdump(MSG_MSGDUMP, "NDIS: received event data", buf, res);
if (res < sizeof(int) + 1)
return;
type = *((int *) buf);
pos = buf + sizeof(int);
wpa_printf(MSG_DEBUG, "NDIS: event - type %d", type);
instance_len = *pos++;
if (instance_len > buf + res - pos) {
wpa_printf(MSG_DEBUG, "NDIS: event InstanceName overflow");
return;
}
instance = pos;
pos += instance_len;
wpa_hexdump_ascii(MSG_MSGDUMP, "NDIS: event InstanceName",
instance, instance_len);
if (buf + res - pos > 1) {
data_len = *pos++;
if (data_len > buf + res - pos) {
wpa_printf(MSG_DEBUG, "NDIS: event data overflow");
return;
}
data = pos;
wpa_hexdump(MSG_MSGDUMP, "NDIS: event data", data, data_len);
}
if (drv->adapter_desc) {
desc_len = strlen(drv->adapter_desc);
if (instance_len < desc_len ||
strncmp(drv->adapter_desc, instance, desc_len)) {
wpa_printf(MSG_DEBUG, "NDIS: ignored event for "
"another adapter");
return;
}
/* InstanceName:
* <driver desc> #<num>
* <driver desc> #<num> - <intermediate drv name> Miniport
*/
for (i = desc_len + 1; i < instance_len; i++) {
if (instance[i] == '-') {
wpa_printf(MSG_DEBUG, "NDIS: ignored event "
"for intermediate miniport");
return;
}
}
}
switch (type) {
case EVENT_CONNECT:
wpa_driver_ndis_event_connect(drv);
break;
case EVENT_DISCONNECT:
wpa_driver_ndis_event_disconnect(drv);
break;
case EVENT_MEDIA_SPECIFIC:
wpa_driver_ndis_event_media_specific(drv, data, data_len);
break;
}
}