2 * WPA Supplicant - driver interaction with old Broadcom wl.o driver
3 * Copyright (c) 2004, Nikki Chumkov <nikki@gattaca.ru>
4 * Copyright (c) 2004, Jouni Malinen <j@w1.fi>
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 as
8 * published by the Free Software Foundation.
10 * Alternatively, this software may be distributed under the terms of BSD
13 * See README and COPYING for more details.
15 * Please note that the newer Broadcom driver ("hybrid Linux driver") supports
16 * Linux wireless extensions and does not need (or even work) with this old
17 * driver wrapper. Use driver_wext.c with that driver.
22 #include <sys/ioctl.h>
27 #include <netpacket/packet.h>
28 #include <net/ethernet.h> /* the L2 protocols */
30 #include <linux/if_packet.h>
31 #include <linux/if_ether.h> /* The L2 protocols */
36 /* wlioctl.h is a Broadcom header file and it is available, e.g., from Linksys
37 * WRT54G GPL tarball. */
43 struct wpa_driver_broadcom_data {
47 char ifname[IFNAMSIZ + 1];
51 #ifndef WLC_DEAUTHENTICATE
52 #define WLC_DEAUTHENTICATE 143
54 #ifndef WLC_DEAUTHENTICATE_WITH_REASON
55 #define WLC_DEAUTHENTICATE_WITH_REASON 201
57 #ifndef WLC_SET_TKIP_COUNTERMEASURES
58 #define WLC_SET_TKIP_COUNTERMEASURES 202
61 #if !defined(PSK_ENABLED) /* NEW driver interface */
62 #define WL_VERSION 360130
63 /* wireless authentication bit vector */
67 #define WAUTH_WPA_ENABLED(wauth) ((wauth) & WPA_ENABLED)
68 #define WAUTH_PSK_ENABLED(wauth) ((wauth) & PSK_ENABLED)
69 #define WAUTH_ENABLED(wauth) ((wauth) & (WPA_ENABLED | PSK_ENABLED))
71 #define WSEC_PRIMARY_KEY WL_PRIMARY_KEY
73 typedef wl_wsec_key_t wsec_key_t;
83 static void wpa_driver_broadcom_scan_timeout(void *eloop_ctx,
86 static int broadcom_ioctl(struct wpa_driver_broadcom_data *drv, int cmd,
93 wpa_printf(MSG_MSGDUMP, "BROADCOM: wlioctl(%s,%d,len=%d,val=%p)",
94 drv->ifname, cmd, len, buf);
95 /* wpa_hexdump(MSG_MSGDUMP, "BROADCOM: wlioctl buf", buf, len); */
100 os_strlcpy(ifr.ifr_name, drv->ifname, IFNAMSIZ);
101 ifr.ifr_data = (caddr_t) &ioc;
102 if ((ret = ioctl(drv->ioctl_sock, SIOCDEVPRIVATE, &ifr)) < 0) {
103 if (cmd != WLC_GET_MAGIC)
104 perror(ifr.ifr_name);
105 wpa_printf(MSG_MSGDUMP, "BROADCOM: wlioctl cmd=%d res=%d",
112 static int wpa_driver_broadcom_get_bssid(void *priv, u8 *bssid)
114 struct wpa_driver_broadcom_data *drv = priv;
115 if (broadcom_ioctl(drv, WLC_GET_BSSID, bssid, ETH_ALEN) == 0)
118 os_memset(bssid, 0, ETH_ALEN);
122 static int wpa_driver_broadcom_get_ssid(void *priv, u8 *ssid)
124 struct wpa_driver_broadcom_data *drv = priv;
127 if (broadcom_ioctl(drv, WLC_GET_SSID, &s, sizeof(s)) == -1)
130 os_memcpy(ssid, s.SSID, s.SSID_len);
134 static int wpa_driver_broadcom_set_wpa(void *priv, int enable)
136 struct wpa_driver_broadcom_data *drv = priv;
137 unsigned int wauth, wsec;
138 struct ether_addr ea;
140 os_memset(&ea, enable ? 0xff : 0, sizeof(ea));
141 if (broadcom_ioctl(drv, WLC_GET_WPA_AUTH, &wauth, sizeof(wauth)) ==
143 broadcom_ioctl(drv, WLC_GET_WSEC, &wsec, sizeof(wsec)) == -1)
151 wsec &= ~(TKIP_ENABLED | AES_ENABLED);
154 if (broadcom_ioctl(drv, WLC_SET_WPA_AUTH, &wauth, sizeof(wauth)) ==
156 broadcom_ioctl(drv, WLC_SET_WSEC, &wsec, sizeof(wsec)) == -1)
159 /* FIX: magic number / error handling? */
160 broadcom_ioctl(drv, 122, &ea, sizeof(ea));
165 static int wpa_driver_broadcom_set_key(void *priv, wpa_alg alg,
166 const u8 *addr, int key_idx, int set_tx,
167 const u8 *seq, size_t seq_len,
168 const u8 *key, size_t key_len)
170 struct wpa_driver_broadcom_data *drv = priv;
174 os_memset(&wkt, 0, sizeof wkt);
175 wpa_printf(MSG_MSGDUMP, "BROADCOM: SET %sKEY[%d] alg=%d",
176 set_tx ? "PRIMARY " : "", key_idx, alg);
177 if (key && key_len > 0)
178 wpa_hexdump_key(MSG_MSGDUMP, "BROADCOM: key", key, key_len);
182 wkt.algo = CRYPTO_ALGO_OFF;
185 wkt.algo = CRYPTO_ALGO_WEP128; /* CRYPTO_ALGO_WEP1? */
188 wkt.algo = 0; /* CRYPTO_ALGO_TKIP? */
191 wkt.algo = 0; /* CRYPTO_ALGO_AES_CCM;
192 * AES_OCB_MSDU, AES_OCB_MPDU? */
195 wkt.algo = CRYPTO_ALGO_NALG;
199 if (seq && seq_len > 0)
200 wpa_hexdump(MSG_MSGDUMP, "BROADCOM: SEQ", seq, seq_len);
203 wpa_hexdump(MSG_MSGDUMP, "BROADCOM: addr", addr, ETH_ALEN);
207 if (key && key_len > 0) {
208 os_memcpy(wkt.data, key, key_len);
210 /* hack hack hack XXX */
211 os_memcpy(&wkt.data[16], &key[24], 8);
212 os_memcpy(&wkt.data[24], &key[16], 8);
215 /* wkt.algo = CRYPTO_ALGO_...; */
216 wkt.flags = set_tx ? 0 : WSEC_PRIMARY_KEY;
218 os_memcpy(&wkt.ea, addr, sizeof(wkt.ea));
219 ret = broadcom_ioctl(drv, WLC_SET_KEY, &wkt, sizeof(wkt));
220 if (addr && set_tx) {
221 /* FIX: magic number / error handling? */
222 broadcom_ioctl(drv, 121, &wkt.ea, sizeof(wkt.ea));
228 static void wpa_driver_broadcom_event_receive(int sock, void *ctx,
233 wl_wpa_header_t *wwh;
234 union wpa_event_data data;
236 if ((left = recv(sock, buf, sizeof buf, 0)) < 0)
239 wpa_hexdump(MSG_DEBUG, "RECEIVE EVENT", (u8 *) buf, left);
241 if ((size_t) left < sizeof(wl_wpa_header_t))
244 wwh = (wl_wpa_header_t *) buf;
246 if (wwh->snap.type != WL_WPA_ETHER_TYPE)
248 if (os_memcmp(&wwh->snap, wl_wpa_snap_template, 6) != 0)
251 os_memset(&data, 0, sizeof(data));
255 left -= WL_WPA_HEADER_LEN;
256 wpa_printf(MSG_DEBUG, "BROADCOM: ASSOC MESSAGE (left: %d)",
259 data.assoc_info.resp_ies = os_malloc(left);
260 if (data.assoc_info.resp_ies == NULL)
262 os_memcpy(data.assoc_info.resp_ies,
263 buf + WL_WPA_HEADER_LEN, left);
264 data.assoc_info.resp_ies_len = left;
265 wpa_hexdump(MSG_MSGDUMP, "BROADCOM: copying %d bytes "
267 data.assoc_info.resp_ies, left);
269 /* data.assoc_info.req_ies = NULL; */
270 /* data.assoc_info.req_ies_len = 0; */
272 wpa_supplicant_event(ctx, EVENT_ASSOCINFO, &data);
273 wpa_supplicant_event(ctx, EVENT_ASSOC, NULL);
275 case WLC_DISASSOC_MSG:
276 wpa_printf(MSG_DEBUG, "BROADCOM: DISASSOC MESSAGE");
277 wpa_supplicant_event(ctx, EVENT_DISASSOC, NULL);
279 case WLC_PTK_MIC_MSG:
280 wpa_printf(MSG_DEBUG, "BROADCOM: PTK MIC MSG MESSAGE");
281 data.michael_mic_failure.unicast = 1;
282 wpa_supplicant_event(ctx, EVENT_MICHAEL_MIC_FAILURE, &data);
284 case WLC_GTK_MIC_MSG:
285 wpa_printf(MSG_DEBUG, "BROADCOM: GTK MIC MSG MESSAGE");
286 data.michael_mic_failure.unicast = 0;
287 wpa_supplicant_event(ctx, EVENT_MICHAEL_MIC_FAILURE, &data);
290 wpa_printf(MSG_DEBUG, "BROADCOM: UNKNOWN MESSAGE (%d)",
294 os_free(data.assoc_info.resp_ies);
297 static void * wpa_driver_broadcom_init(void *ctx, const char *ifname)
300 struct sockaddr_ll ll;
301 struct wpa_driver_broadcom_data *drv;
304 /* open socket to kernel */
305 if ((s = socket(AF_INET, SOCK_DGRAM, 0)) < 0) {
310 os_strlcpy(ifr.ifr_name, ifname, IFNAMSIZ);
311 if (ioctl(s, SIOCGIFINDEX, &ifr) < 0) {
312 perror(ifr.ifr_name);
317 drv = os_zalloc(sizeof(*drv));
321 os_strlcpy(drv->ifname, ifname, sizeof(drv->ifname));
324 s = socket(PF_PACKET, SOCK_RAW, ntohs(ETH_P_802_2));
326 perror("socket(PF_PACKET, SOCK_RAW, ntohs(ETH_P_802_2))");
327 close(drv->ioctl_sock);
332 os_memset(&ll, 0, sizeof(ll));
333 ll.sll_family = AF_PACKET;
334 ll.sll_protocol = ntohs(ETH_P_802_2);
335 ll.sll_ifindex = ifr.ifr_ifindex;
337 ll.sll_pkttype = PACKET_HOST;
340 if (bind(s, (struct sockaddr *) &ll, sizeof(ll)) < 0) {
341 perror("bind(netlink)");
343 close(drv->ioctl_sock);
348 eloop_register_read_sock(s, wpa_driver_broadcom_event_receive, ctx,
355 static void wpa_driver_broadcom_deinit(void *priv)
357 struct wpa_driver_broadcom_data *drv = priv;
358 eloop_cancel_timeout(wpa_driver_broadcom_scan_timeout, drv, drv->ctx);
359 eloop_unregister_read_sock(drv->event_sock);
360 close(drv->event_sock);
361 close(drv->ioctl_sock);
365 static int wpa_driver_broadcom_set_countermeasures(void *priv,
369 struct wpa_driver_broadcom_data *drv = priv;
371 return broadcom_ioctl(drv, WLC_SET_TKIP_COUNTERMEASURES, &enabled,
378 static int wpa_driver_broadcom_set_drop_unencrypted(void *priv, int enabled)
380 struct wpa_driver_broadcom_data *drv = priv;
381 /* SET_EAP_RESTRICT, SET_WEP_RESTRICT */
382 int restrict = (enabled ? 1 : 0);
384 if (broadcom_ioctl(drv, WLC_SET_WEP_RESTRICT,
385 &restrict, sizeof(restrict)) < 0 ||
386 broadcom_ioctl(drv, WLC_SET_EAP_RESTRICT,
387 &restrict, sizeof(restrict)) < 0)
393 static void wpa_driver_broadcom_scan_timeout(void *eloop_ctx,
396 wpa_printf(MSG_DEBUG, "Scan timeout - try to get results");
397 wpa_supplicant_event(timeout_ctx, EVENT_SCAN_RESULTS, NULL);
400 static int wpa_driver_broadcom_scan(void *priv, const u8 *ssid,
403 struct wpa_driver_broadcom_data *drv = priv;
404 wlc_ssid_t wst = { 0, "" };
406 if (ssid && ssid_len > 0 && ssid_len <= sizeof(wst.SSID)) {
407 wst.SSID_len = ssid_len;
408 os_memcpy(wst.SSID, ssid, ssid_len);
411 if (broadcom_ioctl(drv, WLC_SCAN, &wst, sizeof(wst)) < 0)
414 eloop_cancel_timeout(wpa_driver_broadcom_scan_timeout, drv, drv->ctx);
415 eloop_register_timeout(3, 0, wpa_driver_broadcom_scan_timeout, drv,
421 static const int frequency_list[] = {
422 2412, 2417, 2422, 2427, 2432, 2437, 2442,
423 2447, 2452, 2457, 2462, 2467, 2472, 2484
432 } __attribute__ ((packed));
435 wpa_driver_broadcom_get_scan_results(void *priv,
436 struct wpa_scan_result *results,
439 struct wpa_driver_broadcom_data *drv = priv;
441 wl_scan_results_t *wsr;
445 buf = os_malloc(WLC_IOCTL_MAXLEN);
449 wsr = (wl_scan_results_t *) buf;
451 wsr->buflen = WLC_IOCTL_MAXLEN - sizeof(wsr);
455 if (broadcom_ioctl(drv, WLC_SCAN_RESULTS, buf, WLC_IOCTL_MAXLEN) < 0) {
460 os_memset(results, 0, max_size * sizeof(struct wpa_scan_result));
462 for (ap_num = 0, wbi = wsr->bss_info; ap_num < wsr->count; ++ap_num) {
464 struct bss_ie_hdr *ie;
466 os_memcpy(results[ap_num].bssid, &wbi->BSSID, ETH_ALEN);
467 os_memcpy(results[ap_num].ssid, wbi->SSID, wbi->SSID_len);
468 results[ap_num].ssid_len = wbi->SSID_len;
469 results[ap_num].freq = frequency_list[wbi->channel - 1];
471 wpa_hexdump(MSG_MSGDUMP, "BROADCOM: AP IEs",
472 (u8 *) wbi + sizeof(*wbi), wbi->ie_length);
473 ie = (struct bss_ie_hdr *) ((u8 *) wbi + sizeof(*wbi));
474 for (left = wbi->ie_length; left > 0;
475 left -= (ie->len + 2), ie = (struct bss_ie_hdr *)
476 ((u8 *) ie + 2 + ie->len)) {
477 wpa_printf(MSG_MSGDUMP, "BROADCOM: IE: id:%x, len:%d",
478 ie->elem_id, ie->len);
480 wpa_printf(MSG_MSGDUMP,
481 "BROADCOM: oui:%02x%02x%02x",
482 ie->oui[0], ie->oui[1], ie->oui[2]);
483 if (ie->elem_id != 0xdd ||
485 os_memcmp(ie->oui, WPA_OUI, 3) != 0)
487 os_memcpy(results[ap_num].wpa_ie, ie, ie->len + 2);
488 results[ap_num].wpa_ie_len = ie->len + 2;
492 wbi = (wl_bss_info_t *) ((u8 *) wbi + wbi->length);
495 wpa_printf(MSG_MSGDUMP, "Received %d bytes of scan results (%lu "
497 wsr->buflen, (unsigned long) ap_num);
503 static int wpa_driver_broadcom_deauthenticate(void *priv, const u8 *addr,
506 struct wpa_driver_broadcom_data *drv = priv;
508 wdt.val = reason_code;
509 os_memcpy(&wdt.ea, addr, sizeof wdt.ea);
511 return broadcom_ioctl(drv, WLC_DEAUTHENTICATE_WITH_REASON, &wdt,
515 static int wpa_driver_broadcom_disassociate(void *priv, const u8 *addr,
518 struct wpa_driver_broadcom_data *drv = priv;
519 return broadcom_ioctl(drv, WLC_DISASSOC, 0, 0);
523 wpa_driver_broadcom_associate(void *priv,
524 struct wpa_driver_associate_params *params)
526 struct wpa_driver_broadcom_data *drv = priv;
534 s.SSID_len = params->ssid_len;
535 os_memcpy(s.SSID, params->ssid, params->ssid_len);
537 switch (params->pairwise_suite) {
556 switch (params->key_mgmt_suite) {
557 case KEY_MGMT_802_1X:
570 /* printf("broadcom_associate: %u %u %u\n", pairwise_suite,
571 * group_suite, key_mgmt_suite);
572 * broadcom_ioctl(ifname, WLC_GET_WSEC, &wsec, sizeof(wsec));
573 * wl join uses wlc_sec_wep here, not wlc_set_wsec */
575 if (broadcom_ioctl(drv, WLC_SET_WSEC, &wsec, sizeof(wsec)) < 0 ||
576 broadcom_ioctl(drv, WLC_SET_WPA_AUTH, &wpa_auth,
577 sizeof(wpa_auth)) < 0 ||
578 broadcom_ioctl(drv, WLC_GET_WEP, &dummy, sizeof(dummy)) < 0 ||
579 broadcom_ioctl(drv, WLC_SET_INFRA, &infra, sizeof(infra)) < 0 ||
580 broadcom_ioctl(drv, WLC_SET_AUTH, &auth, sizeof(auth)) < 0 ||
581 broadcom_ioctl(drv, WLC_SET_WEP, &wsec, sizeof(wsec)) < 0 ||
582 broadcom_ioctl(drv, WLC_SET_SSID, &s, sizeof(s)) < 0)
588 const struct wpa_driver_ops wpa_driver_broadcom_ops = {
590 .desc = "Broadcom wl.o driver",
591 .get_bssid = wpa_driver_broadcom_get_bssid,
592 .get_ssid = wpa_driver_broadcom_get_ssid,
593 .set_wpa = wpa_driver_broadcom_set_wpa,
594 .set_key = wpa_driver_broadcom_set_key,
595 .init = wpa_driver_broadcom_init,
596 .deinit = wpa_driver_broadcom_deinit,
597 .set_countermeasures = wpa_driver_broadcom_set_countermeasures,
598 .set_drop_unencrypted = wpa_driver_broadcom_set_drop_unencrypted,
599 .scan = wpa_driver_broadcom_scan,
600 .get_scan_results = wpa_driver_broadcom_get_scan_results,
601 .deauthenticate = wpa_driver_broadcom_deauthenticate,
602 .disassociate = wpa_driver_broadcom_disassociate,
603 .associate = wpa_driver_broadcom_associate,