18d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt/* 28d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * WPA Supplicant - Windows/NDIS driver interface - event processing 38d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * Copyright (c) 2004-2005, Jouni Malinen <j@w1.fi> 48d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * 5c5ec7f57ead87efa365800228aa0b09a12d9e6c4Dmitry Shmidt * This software may be distributed under the terms of the BSD license. 6c5ec7f57ead87efa365800228aa0b09a12d9e6c4Dmitry Shmidt * See README for more details. 78d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt */ 88d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 98d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#include "includes.h" 108d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 118d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#include "common.h" 128d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#include "driver.h" 138d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#include "eloop.h" 148d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 158d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt/* Keep this event processing in a separate file and without WinPcap headers to 168d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * avoid conflicts with some of the header files. */ 178d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstruct _ADAPTER; 188d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidttypedef struct _ADAPTER * LPADAPTER; 198d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt#include "driver_ndis.h" 208d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 218d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 228d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtvoid wpa_driver_ndis_event_connect(struct wpa_driver_ndis_data *drv); 238d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtvoid wpa_driver_ndis_event_disconnect(struct wpa_driver_ndis_data *drv); 248d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtvoid wpa_driver_ndis_event_media_specific(struct wpa_driver_ndis_data *drv, 258d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt const u8 *data, size_t data_len); 268d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtvoid wpa_driver_ndis_event_adapter_arrival(struct wpa_driver_ndis_data *drv); 278d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtvoid wpa_driver_ndis_event_adapter_removal(struct wpa_driver_ndis_data *drv); 288d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 298d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 308d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtenum event_types { EVENT_CONNECT, EVENT_DISCONNECT, 318d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt EVENT_MEDIA_SPECIFIC, EVENT_ADAPTER_ARRIVAL, 328d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt EVENT_ADAPTER_REMOVAL }; 338d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 348d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt/* Event data: 358d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * enum event_types (as int, i.e., 4 octets) 368d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * data length (2 octets (big endian), optional) 378d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt * data (variable len, optional) 388d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt */ 398d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 408d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 418d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtstatic void wpa_driver_ndis_event_process(struct wpa_driver_ndis_data *drv, 428d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 *buf, size_t len) 438d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 448d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 *pos, *data = NULL; 458d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt enum event_types type; 468d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt size_t data_len = 0; 478d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 488d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_MSGDUMP, "NDIS: received event data", buf, len); 498d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (len < sizeof(int)) 508d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return; 518d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt type = *((int *) buf); 528d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt pos = buf + sizeof(int); 538d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "NDIS: event - type %d", type); 548d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 558d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (buf + len - pos > 2) { 568d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt data_len = (int) *pos++ << 8; 578d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt data_len += *pos++; 588d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (data_len > (size_t) (buf + len - pos)) { 598d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "NDIS: event data overflow"); 608d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt return; 618d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 628d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt data = pos; 638d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_hexdump(MSG_MSGDUMP, "NDIS: event data", data, data_len); 648d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 658d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 668d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt switch (type) { 678d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt case EVENT_CONNECT: 688d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_driver_ndis_event_connect(drv); 698d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt break; 708d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt case EVENT_DISCONNECT: 718d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_driver_ndis_event_disconnect(drv); 728d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt break; 738d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt case EVENT_MEDIA_SPECIFIC: 748d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_driver_ndis_event_media_specific(drv, data, data_len); 758d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt break; 768d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt case EVENT_ADAPTER_ARRIVAL: 778d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_driver_ndis_event_adapter_arrival(drv); 788d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt break; 798d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt case EVENT_ADAPTER_REMOVAL: 808d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_driver_ndis_event_adapter_removal(drv); 818d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt break; 828d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 838d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 848d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 858d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 868d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidtvoid wpa_driver_ndis_event_pipe_cb(void *eloop_data, void *user_data) 878d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt{ 888d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt struct wpa_driver_ndis_data *drv = eloop_data; 898d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt u8 buf[512]; 908d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt DWORD len; 918d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt 928d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt ResetEvent(drv->event_avail); 938d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt if (ReadFile(drv->events_pipe, buf, sizeof(buf), &len, NULL)) 948d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_driver_ndis_event_process(drv, buf, len); 958d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt else { 968d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt wpa_printf(MSG_DEBUG, "%s: ReadFile() failed: %d", __func__, 978d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt (int) GetLastError()); 988d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt } 998d520ff1dc2da35cdca849e982051b86468016d8Dmitry Shmidt} 100