1 /*
2 * WPA Supplicant - driver interaction with MADWIFI 802.11 driver
3 * Copyright (c) 2004, Sam Leffler <sam@errno.com>
4 * Copyright (c) 2004, Video54 Technologies
5 * Copyright (c) 2004-2007, Jouni Malinen <j@w1.fi>
6 *
7 * This software may be distributed under the terms of the BSD license.
8 * See README for more details.
9 *
10 * While this driver wrapper supports both AP (hostapd) and station
11 * (wpa_supplicant) operations, the station side is deprecated and
12 * driver_wext.c should be used instead. This driver wrapper should only be
13 * used with hostapd for AP mode functionality.
14 */
15
16 #include "includes.h"
17 #include <sys/ioctl.h>
18
19 #include "common.h"
20 #include "driver.h"
21 #include "driver_wext.h"
22 #include "eloop.h"
23 #include "common/ieee802_11_defs.h"
24 #include "linux_wext.h"
25
26 /*
27 * Avoid conflicts with wpa_supplicant definitions by undefining a definition.
28 */
29 #undef WME_OUI_TYPE
30
31 #include <include/compat.h>
32 #include <net80211/ieee80211.h>
33 #ifdef WME_NUM_AC
34 /* Assume this is built against BSD branch of madwifi driver. */
35 #define MADWIFI_BSD
36 #include <net80211/_ieee80211.h>
37 #endif /* WME_NUM_AC */
38 #include <net80211/ieee80211_crypto.h>
39 #include <net80211/ieee80211_ioctl.h>
40
41 #ifdef CONFIG_WPS
42 #ifdef IEEE80211_IOCTL_FILTERFRAME
43 #include <netpacket/packet.h>
44
45 #ifndef ETH_P_80211_RAW
46 #define ETH_P_80211_RAW 0x0019
47 #endif
48 #endif /* IEEE80211_IOCTL_FILTERFRAME */
49 #endif /* CONFIG_WPS */
50
51 /*
52 * Avoid conflicts with hostapd definitions by undefining couple of defines
53 * from madwifi header files.
54 */
55 #undef RSN_VERSION
56 #undef WPA_VERSION
57 #undef WPA_OUI_TYPE
58 #undef WME_OUI_TYPE
59
60
61 #ifdef IEEE80211_IOCTL_SETWMMPARAMS
62 /* Assume this is built against madwifi-ng */
63 #define MADWIFI_NG
64 #endif /* IEEE80211_IOCTL_SETWMMPARAMS */
65
66 #define WPA_KEY_RSC_LEN 8
67
68 #include "priv_netlink.h"
69 #include "netlink.h"
70 #include "linux_ioctl.h"
71 #include "l2_packet/l2_packet.h"
72
73
74 struct madwifi_driver_data {
75 struct hostapd_data *hapd; /* back pointer */
76
77 char iface[IFNAMSIZ + 1];
78 int ifindex;
79 struct l2_packet_data *sock_xmit; /* raw packet xmit socket */
80 struct l2_packet_data *sock_recv; /* raw packet recv socket */
81 int ioctl_sock; /* socket for ioctl() use */
82 struct netlink_data *netlink;
83 int we_version;
84 u8 acct_mac[ETH_ALEN];
85 struct hostap_sta_driver_data acct_data;
86
87 struct l2_packet_data *sock_raw; /* raw 802.11 management frames */
88 };
89
90 static int madwifi_sta_deauth(void *priv, const u8 *own_addr, const u8 *addr,
91 int reason_code);
92
93 static int
set80211priv(struct madwifi_driver_data * drv,int op,void * data,int len)94 set80211priv(struct madwifi_driver_data *drv, int op, void *data, int len)
95 {
96 struct iwreq iwr;
97 int do_inline = len < IFNAMSIZ;
98
99 memset(&iwr, 0, sizeof(iwr));
100 os_strlcpy(iwr.ifr_name, drv->iface, IFNAMSIZ);
101 #ifdef IEEE80211_IOCTL_FILTERFRAME
102 /* FILTERFRAME must be NOT inline, regardless of size. */
103 if (op == IEEE80211_IOCTL_FILTERFRAME)
104 do_inline = 0;
105 #endif /* IEEE80211_IOCTL_FILTERFRAME */
106 if (op == IEEE80211_IOCTL_SET_APPIEBUF)
107 do_inline = 0;
108 if (do_inline) {
109 /*
110 * Argument data fits inline; put it there.
111 */
112 memcpy(iwr.u.name, data, len);
113 } else {
114 /*
115 * Argument data too big for inline transfer; setup a
116 * parameter block instead; the kernel will transfer
117 * the data for the driver.
118 */
119 iwr.u.data.pointer = data;
120 iwr.u.data.length = len;
121 }
122
123 if (ioctl(drv->ioctl_sock, op, &iwr) < 0) {
124 #ifdef MADWIFI_NG
125 int first = IEEE80211_IOCTL_SETPARAM;
126 static const char *opnames[] = {
127 "ioctl[IEEE80211_IOCTL_SETPARAM]",
128 "ioctl[IEEE80211_IOCTL_GETPARAM]",
129 "ioctl[IEEE80211_IOCTL_SETMODE]",
130 "ioctl[IEEE80211_IOCTL_GETMODE]",
131 "ioctl[IEEE80211_IOCTL_SETWMMPARAMS]",
132 "ioctl[IEEE80211_IOCTL_GETWMMPARAMS]",
133 "ioctl[IEEE80211_IOCTL_SETCHANLIST]",
134 "ioctl[IEEE80211_IOCTL_GETCHANLIST]",
135 "ioctl[IEEE80211_IOCTL_CHANSWITCH]",
136 "ioctl[IEEE80211_IOCTL_GET_APPIEBUF]",
137 "ioctl[IEEE80211_IOCTL_SET_APPIEBUF]",
138 "ioctl[IEEE80211_IOCTL_GETSCANRESULTS]",
139 "ioctl[IEEE80211_IOCTL_FILTERFRAME]",
140 "ioctl[IEEE80211_IOCTL_GETCHANINFO]",
141 "ioctl[IEEE80211_IOCTL_SETOPTIE]",
142 "ioctl[IEEE80211_IOCTL_GETOPTIE]",
143 "ioctl[IEEE80211_IOCTL_SETMLME]",
144 NULL,
145 "ioctl[IEEE80211_IOCTL_SETKEY]",
146 NULL,
147 "ioctl[IEEE80211_IOCTL_DELKEY]",
148 NULL,
149 "ioctl[IEEE80211_IOCTL_ADDMAC]",
150 NULL,
151 "ioctl[IEEE80211_IOCTL_DELMAC]",
152 NULL,
153 "ioctl[IEEE80211_IOCTL_WDSMAC]",
154 NULL,
155 "ioctl[IEEE80211_IOCTL_WDSDELMAC]",
156 NULL,
157 "ioctl[IEEE80211_IOCTL_KICKMAC]",
158 };
159 #else /* MADWIFI_NG */
160 int first = IEEE80211_IOCTL_SETPARAM;
161 static const char *opnames[] = {
162 "ioctl[IEEE80211_IOCTL_SETPARAM]",
163 "ioctl[IEEE80211_IOCTL_GETPARAM]",
164 "ioctl[IEEE80211_IOCTL_SETKEY]",
165 "ioctl[SIOCIWFIRSTPRIV+3]",
166 "ioctl[IEEE80211_IOCTL_DELKEY]",
167 "ioctl[SIOCIWFIRSTPRIV+5]",
168 "ioctl[IEEE80211_IOCTL_SETMLME]",
169 "ioctl[SIOCIWFIRSTPRIV+7]",
170 "ioctl[IEEE80211_IOCTL_SETOPTIE]",
171 "ioctl[IEEE80211_IOCTL_GETOPTIE]",
172 "ioctl[IEEE80211_IOCTL_ADDMAC]",
173 "ioctl[SIOCIWFIRSTPRIV+11]",
174 "ioctl[IEEE80211_IOCTL_DELMAC]",
175 "ioctl[SIOCIWFIRSTPRIV+13]",
176 "ioctl[IEEE80211_IOCTL_CHANLIST]",
177 "ioctl[SIOCIWFIRSTPRIV+15]",
178 "ioctl[IEEE80211_IOCTL_GETRSN]",
179 "ioctl[SIOCIWFIRSTPRIV+17]",
180 "ioctl[IEEE80211_IOCTL_GETKEY]",
181 };
182 #endif /* MADWIFI_NG */
183 int idx = op - first;
184 if (first <= op &&
185 idx < (int) (sizeof(opnames) / sizeof(opnames[0])) &&
186 opnames[idx])
187 perror(opnames[idx]);
188 else
189 perror("ioctl[unknown???]");
190 return -1;
191 }
192 return 0;
193 }
194
195 static int
set80211param(struct madwifi_driver_data * drv,int op,int arg)196 set80211param(struct madwifi_driver_data *drv, int op, int arg)
197 {
198 struct iwreq iwr;
199
200 memset(&iwr, 0, sizeof(iwr));
201 os_strlcpy(iwr.ifr_name, drv->iface, IFNAMSIZ);
202 iwr.u.mode = op;
203 memcpy(iwr.u.name+sizeof(__u32), &arg, sizeof(arg));
204
205 if (ioctl(drv->ioctl_sock, IEEE80211_IOCTL_SETPARAM, &iwr) < 0) {
206 perror("ioctl[IEEE80211_IOCTL_SETPARAM]");
207 wpa_printf(MSG_DEBUG, "%s: Failed to set parameter (op %d "
208 "arg %d)", __func__, op, arg);
209 return -1;
210 }
211 return 0;
212 }
213
214 #ifndef CONFIG_NO_STDOUT_DEBUG
215 static const char *
ether_sprintf(const u8 * addr)216 ether_sprintf(const u8 *addr)
217 {
218 static char buf[sizeof(MACSTR)];
219
220 if (addr != NULL)
221 snprintf(buf, sizeof(buf), MACSTR, MAC2STR(addr));
222 else
223 snprintf(buf, sizeof(buf), MACSTR, 0,0,0,0,0,0);
224 return buf;
225 }
226 #endif /* CONFIG_NO_STDOUT_DEBUG */
227
228 /*
229 * Configure WPA parameters.
230 */
231 static int
madwifi_configure_wpa(struct madwifi_driver_data * drv,struct wpa_bss_params * params)232 madwifi_configure_wpa(struct madwifi_driver_data *drv,
233 struct wpa_bss_params *params)
234 {
235 int v;
236
237 switch (params->wpa_group) {
238 case WPA_CIPHER_CCMP:
239 v = IEEE80211_CIPHER_AES_CCM;
240 break;
241 case WPA_CIPHER_TKIP:
242 v = IEEE80211_CIPHER_TKIP;
243 break;
244 case WPA_CIPHER_WEP104:
245 v = IEEE80211_CIPHER_WEP;
246 break;
247 case WPA_CIPHER_WEP40:
248 v = IEEE80211_CIPHER_WEP;
249 break;
250 case WPA_CIPHER_NONE:
251 v = IEEE80211_CIPHER_NONE;
252 break;
253 default:
254 wpa_printf(MSG_ERROR, "Unknown group key cipher %u",
255 params->wpa_group);
256 return -1;
257 }
258 wpa_printf(MSG_DEBUG, "%s: group key cipher=%d", __func__, v);
259 if (set80211param(drv, IEEE80211_PARAM_MCASTCIPHER, v)) {
260 printf("Unable to set group key cipher to %u\n", v);
261 return -1;
262 }
263 if (v == IEEE80211_CIPHER_WEP) {
264 /* key length is done only for specific ciphers */
265 v = (params->wpa_group == WPA_CIPHER_WEP104 ? 13 : 5);
266 if (set80211param(drv, IEEE80211_PARAM_MCASTKEYLEN, v)) {
267 printf("Unable to set group key length to %u\n", v);
268 return -1;
269 }
270 }
271
272 v = 0;
273 if (params->wpa_pairwise & WPA_CIPHER_CCMP)
274 v |= 1<<IEEE80211_CIPHER_AES_CCM;
275 if (params->wpa_pairwise & WPA_CIPHER_TKIP)
276 v |= 1<<IEEE80211_CIPHER_TKIP;
277 if (params->wpa_pairwise & WPA_CIPHER_NONE)
278 v |= 1<<IEEE80211_CIPHER_NONE;
279 wpa_printf(MSG_DEBUG, "%s: pairwise key ciphers=0x%x", __func__, v);
280 if (set80211param(drv, IEEE80211_PARAM_UCASTCIPHERS, v)) {
281 printf("Unable to set pairwise key ciphers to 0x%x\n", v);
282 return -1;
283 }
284
285 wpa_printf(MSG_DEBUG, "%s: key management algorithms=0x%x",
286 __func__, params->wpa_key_mgmt);
287 if (set80211param(drv, IEEE80211_PARAM_KEYMGTALGS,
288 params->wpa_key_mgmt)) {
289 printf("Unable to set key management algorithms to 0x%x\n",
290 params->wpa_key_mgmt);
291 return -1;
292 }
293
294 v = 0;
295 if (params->rsn_preauth)
296 v |= BIT(0);
297 wpa_printf(MSG_DEBUG, "%s: rsn capabilities=0x%x",
298 __func__, params->rsn_preauth);
299 if (set80211param(drv, IEEE80211_PARAM_RSNCAPS, v)) {
300 printf("Unable to set RSN capabilities to 0x%x\n", v);
301 return -1;
302 }
303
304 wpa_printf(MSG_DEBUG, "%s: enable WPA=0x%x", __func__, params->wpa);
305 if (set80211param(drv, IEEE80211_PARAM_WPA, params->wpa)) {
306 printf("Unable to set WPA to %u\n", params->wpa);
307 return -1;
308 }
309 return 0;
310 }
311
312 static int
madwifi_set_ieee8021x(void * priv,struct wpa_bss_params * params)313 madwifi_set_ieee8021x(void *priv, struct wpa_bss_params *params)
314 {
315 struct madwifi_driver_data *drv = priv;
316
317 wpa_printf(MSG_DEBUG, "%s: enabled=%d", __func__, params->enabled);
318
319 if (!params->enabled) {
320 /* XXX restore state */
321 return set80211param(priv, IEEE80211_PARAM_AUTHMODE,
322 IEEE80211_AUTH_AUTO);
323 }
324 if (!params->wpa && !params->ieee802_1x) {
325 hostapd_logger(drv->hapd, NULL, HOSTAPD_MODULE_DRIVER,
326 HOSTAPD_LEVEL_WARNING, "No 802.1X or WPA enabled!");
327 return -1;
328 }
329 if (params->wpa && madwifi_configure_wpa(drv, params) != 0) {
330 hostapd_logger(drv->hapd, NULL, HOSTAPD_MODULE_DRIVER,
331 HOSTAPD_LEVEL_WARNING, "Error configuring WPA state!");
332 return -1;
333 }
334 if (set80211param(priv, IEEE80211_PARAM_AUTHMODE,
335 (params->wpa ? IEEE80211_AUTH_WPA : IEEE80211_AUTH_8021X))) {
336 hostapd_logger(drv->hapd, NULL, HOSTAPD_MODULE_DRIVER,
337 HOSTAPD_LEVEL_WARNING, "Error enabling WPA/802.1X!");
338 return -1;
339 }
340
341 return 0;
342 }
343
344 static int
madwifi_set_privacy(void * priv,int enabled)345 madwifi_set_privacy(void *priv, int enabled)
346 {
347 struct madwifi_driver_data *drv = priv;
348
349 wpa_printf(MSG_DEBUG, "%s: enabled=%d", __func__, enabled);
350
351 return set80211param(drv, IEEE80211_PARAM_PRIVACY, enabled);
352 }
353
354 static int
madwifi_set_sta_authorized(void * priv,const u8 * addr,int authorized)355 madwifi_set_sta_authorized(void *priv, const u8 *addr, int authorized)
356 {
357 struct madwifi_driver_data *drv = priv;
358 struct ieee80211req_mlme mlme;
359 int ret;
360
361 wpa_printf(MSG_DEBUG, "%s: addr=%s authorized=%d",
362 __func__, ether_sprintf(addr), authorized);
363
364 if (authorized)
365 mlme.im_op = IEEE80211_MLME_AUTHORIZE;
366 else
367 mlme.im_op = IEEE80211_MLME_UNAUTHORIZE;
368 mlme.im_reason = 0;
369 memcpy(mlme.im_macaddr, addr, IEEE80211_ADDR_LEN);
370 ret = set80211priv(drv, IEEE80211_IOCTL_SETMLME, &mlme, sizeof(mlme));
371 if (ret < 0) {
372 wpa_printf(MSG_DEBUG, "%s: Failed to %sauthorize STA " MACSTR,
373 __func__, authorized ? "" : "un", MAC2STR(addr));
374 }
375
376 return ret;
377 }
378
379 static int
madwifi_sta_set_flags(void * priv,const u8 * addr,int total_flags,int flags_or,int flags_and)380 madwifi_sta_set_flags(void *priv, const u8 *addr,
381 int total_flags, int flags_or, int flags_and)
382 {
383 /* For now, only support setting Authorized flag */
384 if (flags_or & WPA_STA_AUTHORIZED)
385 return madwifi_set_sta_authorized(priv, addr, 1);
386 if (!(flags_and & WPA_STA_AUTHORIZED))
387 return madwifi_set_sta_authorized(priv, addr, 0);
388 return 0;
389 }
390
391 static int
madwifi_del_key(void * priv,const u8 * addr,int key_idx)392 madwifi_del_key(void *priv, const u8 *addr, int key_idx)
393 {
394 struct madwifi_driver_data *drv = priv;
395 struct ieee80211req_del_key wk;
396 int ret;
397
398 wpa_printf(MSG_DEBUG, "%s: addr=%s key_idx=%d",
399 __func__, ether_sprintf(addr), key_idx);
400
401 memset(&wk, 0, sizeof(wk));
402 if (addr != NULL) {
403 memcpy(wk.idk_macaddr, addr, IEEE80211_ADDR_LEN);
404 wk.idk_keyix = (u8) IEEE80211_KEYIX_NONE;
405 } else {
406 wk.idk_keyix = key_idx;
407 }
408
409 ret = set80211priv(drv, IEEE80211_IOCTL_DELKEY, &wk, sizeof(wk));
410 if (ret < 0) {
411 wpa_printf(MSG_DEBUG, "%s: Failed to delete key (addr %s"
412 " key_idx %d)", __func__, ether_sprintf(addr),
413 key_idx);
414 }
415
416 return ret;
417 }
418
419 static int
wpa_driver_madwifi_set_key(const char * ifname,void * priv,enum wpa_alg alg,const u8 * addr,int key_idx,int set_tx,const u8 * seq,size_t seq_len,const u8 * key,size_t key_len)420 wpa_driver_madwifi_set_key(const char *ifname, void *priv, enum wpa_alg alg,
421 const u8 *addr, int key_idx, int set_tx,
422 const u8 *seq, size_t seq_len,
423 const u8 *key, size_t key_len)
424 {
425 struct madwifi_driver_data *drv = priv;
426 struct ieee80211req_key wk;
427 u_int8_t cipher;
428 int ret;
429
430 if (alg == WPA_ALG_NONE)
431 return madwifi_del_key(drv, addr, key_idx);
432
433 wpa_printf(MSG_DEBUG, "%s: alg=%d addr=%s key_idx=%d",
434 __func__, alg, ether_sprintf(addr), key_idx);
435
436 if (alg == WPA_ALG_WEP)
437 cipher = IEEE80211_CIPHER_WEP;
438 else if (alg == WPA_ALG_TKIP)
439 cipher = IEEE80211_CIPHER_TKIP;
440 else if (alg == WPA_ALG_CCMP)
441 cipher = IEEE80211_CIPHER_AES_CCM;
442 else {
443 printf("%s: unknown/unsupported algorithm %d\n",
444 __func__, alg);
445 return -1;
446 }
447
448 if (key_len > sizeof(wk.ik_keydata)) {
449 printf("%s: key length %lu too big\n", __func__,
450 (unsigned long) key_len);
451 return -3;
452 }
453
454 memset(&wk, 0, sizeof(wk));
455 wk.ik_type = cipher;
456 wk.ik_flags = IEEE80211_KEY_RECV | IEEE80211_KEY_XMIT;
457 if (addr == NULL || is_broadcast_ether_addr(addr)) {
458 memset(wk.ik_macaddr, 0xff, IEEE80211_ADDR_LEN);
459 wk.ik_keyix = key_idx;
460 wk.ik_flags |= IEEE80211_KEY_DEFAULT;
461 } else {
462 memcpy(wk.ik_macaddr, addr, IEEE80211_ADDR_LEN);
463 wk.ik_keyix = IEEE80211_KEYIX_NONE;
464 }
465 wk.ik_keylen = key_len;
466 memcpy(wk.ik_keydata, key, key_len);
467
468 ret = set80211priv(drv, IEEE80211_IOCTL_SETKEY, &wk, sizeof(wk));
469 if (ret < 0) {
470 wpa_printf(MSG_DEBUG, "%s: Failed to set key (addr %s"
471 " key_idx %d alg %d key_len %lu set_tx %d)",
472 __func__, ether_sprintf(wk.ik_macaddr), key_idx,
473 alg, (unsigned long) key_len, set_tx);
474 }
475
476 return ret;
477 }
478
479
480 static int
madwifi_get_seqnum(const char * ifname,void * priv,const u8 * addr,int idx,u8 * seq)481 madwifi_get_seqnum(const char *ifname, void *priv, const u8 *addr, int idx,
482 u8 *seq)
483 {
484 struct madwifi_driver_data *drv = priv;
485 struct ieee80211req_key wk;
486
487 wpa_printf(MSG_DEBUG, "%s: addr=%s idx=%d",
488 __func__, ether_sprintf(addr), idx);
489
490 memset(&wk, 0, sizeof(wk));
491 if (addr == NULL)
492 memset(wk.ik_macaddr, 0xff, IEEE80211_ADDR_LEN);
493 else
494 memcpy(wk.ik_macaddr, addr, IEEE80211_ADDR_LEN);
495 wk.ik_keyix = idx;
496
497 if (set80211priv(drv, IEEE80211_IOCTL_GETKEY, &wk, sizeof(wk))) {
498 wpa_printf(MSG_DEBUG, "%s: Failed to get encryption data "
499 "(addr " MACSTR " key_idx %d)",
500 __func__, MAC2STR(wk.ik_macaddr), idx);
501 return -1;
502 }
503
504 #ifdef WORDS_BIGENDIAN
505 {
506 /*
507 * wk.ik_keytsc is in host byte order (big endian), need to
508 * swap it to match with the byte order used in WPA.
509 */
510 int i;
511 u8 tmp[WPA_KEY_RSC_LEN];
512 memcpy(tmp, &wk.ik_keytsc, sizeof(wk.ik_keytsc));
513 for (i = 0; i < WPA_KEY_RSC_LEN; i++) {
514 seq[i] = tmp[WPA_KEY_RSC_LEN - i - 1];
515 }
516 }
517 #else /* WORDS_BIGENDIAN */
518 memcpy(seq, &wk.ik_keytsc, sizeof(wk.ik_keytsc));
519 #endif /* WORDS_BIGENDIAN */
520 return 0;
521 }
522
523
524 static int
madwifi_flush(void * priv)525 madwifi_flush(void *priv)
526 {
527 #ifdef MADWIFI_BSD
528 u8 allsta[IEEE80211_ADDR_LEN];
529 memset(allsta, 0xff, IEEE80211_ADDR_LEN);
530 return madwifi_sta_deauth(priv, NULL, allsta,
531 IEEE80211_REASON_AUTH_LEAVE);
532 #else /* MADWIFI_BSD */
533 return 0; /* XXX */
534 #endif /* MADWIFI_BSD */
535 }
536
537
538 static int
madwifi_read_sta_driver_data(void * priv,struct hostap_sta_driver_data * data,const u8 * addr)539 madwifi_read_sta_driver_data(void *priv, struct hostap_sta_driver_data *data,
540 const u8 *addr)
541 {
542 struct madwifi_driver_data *drv = priv;
543
544 #ifdef MADWIFI_BSD
545 struct ieee80211req_sta_stats stats;
546
547 memset(data, 0, sizeof(*data));
548
549 /*
550 * Fetch statistics for station from the system.
551 */
552 memset(&stats, 0, sizeof(stats));
553 memcpy(stats.is_u.macaddr, addr, IEEE80211_ADDR_LEN);
554 if (set80211priv(drv,
555 #ifdef MADWIFI_NG
556 IEEE80211_IOCTL_STA_STATS,
557 #else /* MADWIFI_NG */
558 IEEE80211_IOCTL_GETSTASTATS,
559 #endif /* MADWIFI_NG */
560 &stats, sizeof(stats))) {
561 wpa_printf(MSG_DEBUG, "%s: Failed to fetch STA stats (addr "
562 MACSTR ")", __func__, MAC2STR(addr));
563 if (memcmp(addr, drv->acct_mac, ETH_ALEN) == 0) {
564 memcpy(data, &drv->acct_data, sizeof(*data));
565 return 0;
566 }
567
568 printf("Failed to get station stats information element.\n");
569 return -1;
570 }
571
572 data->rx_packets = stats.is_stats.ns_rx_data;
573 data->rx_bytes = stats.is_stats.ns_rx_bytes;
574 data->tx_packets = stats.is_stats.ns_tx_data;
575 data->tx_bytes = stats.is_stats.ns_tx_bytes;
576 return 0;
577
578 #else /* MADWIFI_BSD */
579
580 char buf[1024], line[128], *pos;
581 FILE *f;
582 unsigned long val;
583
584 memset(data, 0, sizeof(*data));
585 snprintf(buf, sizeof(buf), "/proc/net/madwifi/%s/" MACSTR,
586 drv->iface, MAC2STR(addr));
587
588 f = fopen(buf, "r");
589 if (!f) {
590 if (memcmp(addr, drv->acct_mac, ETH_ALEN) != 0)
591 return -1;
592 memcpy(data, &drv->acct_data, sizeof(*data));
593 return 0;
594 }
595 /* Need to read proc file with in one piece, so use large enough
596 * buffer. */
597 setbuffer(f, buf, sizeof(buf));
598
599 while (fgets(line, sizeof(line), f)) {
600 pos = strchr(line, '=');
601 if (!pos)
602 continue;
603 *pos++ = '\0';
604 val = strtoul(pos, NULL, 10);
605 if (strcmp(line, "rx_packets") == 0)
606 data->rx_packets = val;
607 else if (strcmp(line, "tx_packets") == 0)
608 data->tx_packets = val;
609 else if (strcmp(line, "rx_bytes") == 0)
610 data->rx_bytes = val;
611 else if (strcmp(line, "tx_bytes") == 0)
612 data->tx_bytes = val;
613 }
614
615 fclose(f);
616
617 return 0;
618 #endif /* MADWIFI_BSD */
619 }
620
621
622 static int
madwifi_sta_clear_stats(void * priv,const u8 * addr)623 madwifi_sta_clear_stats(void *priv, const u8 *addr)
624 {
625 #if defined(MADWIFI_BSD) && defined(IEEE80211_MLME_CLEAR_STATS)
626 struct madwifi_driver_data *drv = priv;
627 struct ieee80211req_mlme mlme;
628 int ret;
629
630 wpa_printf(MSG_DEBUG, "%s: addr=%s", __func__, ether_sprintf(addr));
631
632 mlme.im_op = IEEE80211_MLME_CLEAR_STATS;
633 memcpy(mlme.im_macaddr, addr, IEEE80211_ADDR_LEN);
634 ret = set80211priv(drv, IEEE80211_IOCTL_SETMLME, &mlme,
635 sizeof(mlme));
636 if (ret < 0) {
637 wpa_printf(MSG_DEBUG, "%s: Failed to clear STA stats (addr "
638 MACSTR ")", __func__, MAC2STR(addr));
639 }
640
641 return ret;
642 #else /* MADWIFI_BSD && IEEE80211_MLME_CLEAR_STATS */
643 return 0; /* FIX */
644 #endif /* MADWIFI_BSD && IEEE80211_MLME_CLEAR_STATS */
645 }
646
647
648 static int
madwifi_set_opt_ie(void * priv,const u8 * ie,size_t ie_len)649 madwifi_set_opt_ie(void *priv, const u8 *ie, size_t ie_len)
650 {
651 /*
652 * Do nothing; we setup parameters at startup that define the
653 * contents of the beacon information element.
654 */
655 return 0;
656 }
657
658 static int
madwifi_sta_deauth(void * priv,const u8 * own_addr,const u8 * addr,int reason_code)659 madwifi_sta_deauth(void *priv, const u8 *own_addr, const u8 *addr,
660 int reason_code)
661 {
662 struct madwifi_driver_data *drv = priv;
663 struct ieee80211req_mlme mlme;
664 int ret;
665
666 wpa_printf(MSG_DEBUG, "%s: addr=%s reason_code=%d",
667 __func__, ether_sprintf(addr), reason_code);
668
669 mlme.im_op = IEEE80211_MLME_DEAUTH;
670 mlme.im_reason = reason_code;
671 memcpy(mlme.im_macaddr, addr, IEEE80211_ADDR_LEN);
672 ret = set80211priv(drv, IEEE80211_IOCTL_SETMLME, &mlme, sizeof(mlme));
673 if (ret < 0) {
674 wpa_printf(MSG_DEBUG, "%s: Failed to deauth STA (addr " MACSTR
675 " reason %d)",
676 __func__, MAC2STR(addr), reason_code);
677 }
678
679 return ret;
680 }
681
682 static int
madwifi_sta_disassoc(void * priv,const u8 * own_addr,const u8 * addr,int reason_code)683 madwifi_sta_disassoc(void *priv, const u8 *own_addr, const u8 *addr,
684 int reason_code)
685 {
686 struct madwifi_driver_data *drv = priv;
687 struct ieee80211req_mlme mlme;
688 int ret;
689
690 wpa_printf(MSG_DEBUG, "%s: addr=%s reason_code=%d",
691 __func__, ether_sprintf(addr), reason_code);
692
693 mlme.im_op = IEEE80211_MLME_DISASSOC;
694 mlme.im_reason = reason_code;
695 memcpy(mlme.im_macaddr, addr, IEEE80211_ADDR_LEN);
696 ret = set80211priv(drv, IEEE80211_IOCTL_SETMLME, &mlme, sizeof(mlme));
697 if (ret < 0) {
698 wpa_printf(MSG_DEBUG, "%s: Failed to disassoc STA (addr "
699 MACSTR " reason %d)",
700 __func__, MAC2STR(addr), reason_code);
701 }
702
703 return ret;
704 }
705
706 #ifdef CONFIG_WPS
707 #ifdef IEEE80211_IOCTL_FILTERFRAME
madwifi_raw_receive(void * ctx,const u8 * src_addr,const u8 * buf,size_t len)708 static void madwifi_raw_receive(void *ctx, const u8 *src_addr, const u8 *buf,
709 size_t len)
710 {
711 struct madwifi_driver_data *drv = ctx;
712 const struct ieee80211_mgmt *mgmt;
713 u16 fc;
714 union wpa_event_data event;
715
716 /* Send Probe Request information to WPS processing */
717
718 if (len < IEEE80211_HDRLEN + sizeof(mgmt->u.probe_req))
719 return;
720 mgmt = (const struct ieee80211_mgmt *) buf;
721
722 fc = le_to_host16(mgmt->frame_control);
723 if (WLAN_FC_GET_TYPE(fc) != WLAN_FC_TYPE_MGMT ||
724 WLAN_FC_GET_STYPE(fc) != WLAN_FC_STYPE_PROBE_REQ)
725 return;
726
727 os_memset(&event, 0, sizeof(event));
728 event.rx_probe_req.sa = mgmt->sa;
729 event.rx_probe_req.da = mgmt->da;
730 event.rx_probe_req.bssid = mgmt->bssid;
731 event.rx_probe_req.ie = mgmt->u.probe_req.variable;
732 event.rx_probe_req.ie_len =
733 len - (IEEE80211_HDRLEN + sizeof(mgmt->u.probe_req));
734 wpa_supplicant_event(drv->hapd, EVENT_RX_PROBE_REQ, &event);
735 }
736 #endif /* IEEE80211_IOCTL_FILTERFRAME */
737 #endif /* CONFIG_WPS */
738
madwifi_receive_probe_req(struct madwifi_driver_data * drv)739 static int madwifi_receive_probe_req(struct madwifi_driver_data *drv)
740 {
741 int ret = 0;
742 #ifdef CONFIG_WPS
743 #ifdef IEEE80211_IOCTL_FILTERFRAME
744 struct ieee80211req_set_filter filt;
745
746 wpa_printf(MSG_DEBUG, "%s Enter", __func__);
747 filt.app_filterype = IEEE80211_FILTER_TYPE_PROBE_REQ;
748
749 ret = set80211priv(drv, IEEE80211_IOCTL_FILTERFRAME, &filt,
750 sizeof(struct ieee80211req_set_filter));
751 if (ret)
752 return ret;
753
754 drv->sock_raw = l2_packet_init(drv->iface, NULL, ETH_P_80211_RAW,
755 madwifi_raw_receive, drv, 1);
756 if (drv->sock_raw == NULL)
757 return -1;
758 #endif /* IEEE80211_IOCTL_FILTERFRAME */
759 #endif /* CONFIG_WPS */
760 return ret;
761 }
762
763 #ifdef CONFIG_WPS
764 static int
madwifi_set_wps_ie(void * priv,const u8 * ie,size_t len,u32 frametype)765 madwifi_set_wps_ie(void *priv, const u8 *ie, size_t len, u32 frametype)
766 {
767 struct madwifi_driver_data *drv = priv;
768 u8 buf[256];
769 struct ieee80211req_getset_appiebuf *beac_ie;
770
771 wpa_printf(MSG_DEBUG, "%s buflen = %lu", __func__,
772 (unsigned long) len);
773
774 beac_ie = (struct ieee80211req_getset_appiebuf *) buf;
775 beac_ie->app_frmtype = frametype;
776 beac_ie->app_buflen = len;
777 memcpy(&(beac_ie->app_buf[0]), ie, len);
778
779 return set80211priv(drv, IEEE80211_IOCTL_SET_APPIEBUF, beac_ie,
780 sizeof(struct ieee80211req_getset_appiebuf) + len);
781 }
782
783 static int
madwifi_set_ap_wps_ie(void * priv,const struct wpabuf * beacon,const struct wpabuf * proberesp,const struct wpabuf * assocresp)784 madwifi_set_ap_wps_ie(void *priv, const struct wpabuf *beacon,
785 const struct wpabuf *proberesp,
786 const struct wpabuf *assocresp)
787 {
788 if (madwifi_set_wps_ie(priv, beacon ? wpabuf_head(beacon) : NULL,
789 beacon ? wpabuf_len(beacon) : 0,
790 IEEE80211_APPIE_FRAME_BEACON) < 0)
791 return -1;
792 return madwifi_set_wps_ie(priv,
793 proberesp ? wpabuf_head(proberesp) : NULL,
794 proberesp ? wpabuf_len(proberesp) : 0,
795 IEEE80211_APPIE_FRAME_PROBE_RESP);
796 }
797 #else /* CONFIG_WPS */
798 #define madwifi_set_ap_wps_ie NULL
799 #endif /* CONFIG_WPS */
800
madwifi_set_freq(void * priv,struct hostapd_freq_params * freq)801 static int madwifi_set_freq(void *priv, struct hostapd_freq_params *freq)
802 {
803 struct madwifi_driver_data *drv = priv;
804 struct iwreq iwr;
805
806 os_memset(&iwr, 0, sizeof(iwr));
807 os_strlcpy(iwr.ifr_name, drv->iface, IFNAMSIZ);
808 iwr.u.freq.m = freq->channel;
809 iwr.u.freq.e = 0;
810
811 if (ioctl(drv->ioctl_sock, SIOCSIWFREQ, &iwr) < 0) {
812 perror("ioctl[SIOCSIWFREQ]");
813 return -1;
814 }
815
816 return 0;
817 }
818
819 static void
madwifi_new_sta(struct madwifi_driver_data * drv,u8 addr[IEEE80211_ADDR_LEN])820 madwifi_new_sta(struct madwifi_driver_data *drv, u8 addr[IEEE80211_ADDR_LEN])
821 {
822 struct hostapd_data *hapd = drv->hapd;
823 struct ieee80211req_wpaie ie;
824 int ielen = 0;
825 u8 *iebuf = NULL;
826
827 /*
828 * Fetch negotiated WPA/RSN parameters from the system.
829 */
830 memset(&ie, 0, sizeof(ie));
831 memcpy(ie.wpa_macaddr, addr, IEEE80211_ADDR_LEN);
832 if (set80211priv(drv, IEEE80211_IOCTL_GETWPAIE, &ie, sizeof(ie))) {
833 wpa_printf(MSG_DEBUG, "%s: Failed to get WPA/RSN IE",
834 __func__);
835 goto no_ie;
836 }
837 wpa_hexdump(MSG_MSGDUMP, "madwifi req WPA IE",
838 ie.wpa_ie, IEEE80211_MAX_OPT_IE);
839 iebuf = ie.wpa_ie;
840 /* madwifi seems to return some random data if WPA/RSN IE is not set.
841 * Assume the IE was not included if the IE type is unknown. */
842 if (iebuf[0] != WLAN_EID_VENDOR_SPECIFIC)
843 iebuf[1] = 0;
844 #ifdef MADWIFI_NG
845 wpa_hexdump(MSG_MSGDUMP, "madwifi req RSN IE",
846 ie.rsn_ie, IEEE80211_MAX_OPT_IE);
847 if (iebuf[1] == 0 && ie.rsn_ie[1] > 0) {
848 /* madwifi-ng svn #1453 added rsn_ie. Use it, if wpa_ie was not
849 * set. This is needed for WPA2. */
850 iebuf = ie.rsn_ie;
851 if (iebuf[0] != WLAN_EID_RSN)
852 iebuf[1] = 0;
853 }
854 #endif /* MADWIFI_NG */
855
856 ielen = iebuf[1];
857 if (ielen == 0)
858 iebuf = NULL;
859 else
860 ielen += 2;
861
862 no_ie:
863 drv_event_assoc(hapd, addr, iebuf, ielen, 0);
864
865 if (memcmp(addr, drv->acct_mac, ETH_ALEN) == 0) {
866 /* Cached accounting data is not valid anymore. */
867 memset(drv->acct_mac, 0, ETH_ALEN);
868 memset(&drv->acct_data, 0, sizeof(drv->acct_data));
869 }
870 }
871
872 static void
madwifi_wireless_event_wireless_custom(struct madwifi_driver_data * drv,char * custom)873 madwifi_wireless_event_wireless_custom(struct madwifi_driver_data *drv,
874 char *custom)
875 {
876 wpa_printf(MSG_DEBUG, "Custom wireless event: '%s'", custom);
877
878 if (strncmp(custom, "MLME-MICHAELMICFAILURE.indication", 33) == 0) {
879 char *pos;
880 u8 addr[ETH_ALEN];
881 pos = strstr(custom, "addr=");
882 if (pos == NULL) {
883 wpa_printf(MSG_DEBUG,
884 "MLME-MICHAELMICFAILURE.indication "
885 "without sender address ignored");
886 return;
887 }
888 pos += 5;
889 if (hwaddr_aton(pos, addr) == 0) {
890 union wpa_event_data data;
891 os_memset(&data, 0, sizeof(data));
892 data.michael_mic_failure.unicast = 1;
893 data.michael_mic_failure.src = addr;
894 wpa_supplicant_event(drv->hapd,
895 EVENT_MICHAEL_MIC_FAILURE, &data);
896 } else {
897 wpa_printf(MSG_DEBUG,
898 "MLME-MICHAELMICFAILURE.indication "
899 "with invalid MAC address");
900 }
901 } else if (strncmp(custom, "STA-TRAFFIC-STAT", 16) == 0) {
902 char *key, *value;
903 u32 val;
904 key = custom;
905 while ((key = strchr(key, '\n')) != NULL) {
906 key++;
907 value = strchr(key, '=');
908 if (value == NULL)
909 continue;
910 *value++ = '\0';
911 val = strtoul(value, NULL, 10);
912 if (strcmp(key, "mac") == 0)
913 hwaddr_aton(value, drv->acct_mac);
914 else if (strcmp(key, "rx_packets") == 0)
915 drv->acct_data.rx_packets = val;
916 else if (strcmp(key, "tx_packets") == 0)
917 drv->acct_data.tx_packets = val;
918 else if (strcmp(key, "rx_bytes") == 0)
919 drv->acct_data.rx_bytes = val;
920 else if (strcmp(key, "tx_bytes") == 0)
921 drv->acct_data.tx_bytes = val;
922 key = value;
923 }
924 }
925 }
926
927 static void
madwifi_wireless_event_wireless(struct madwifi_driver_data * drv,char * data,int len)928 madwifi_wireless_event_wireless(struct madwifi_driver_data *drv,
929 char *data, int len)
930 {
931 struct iw_event iwe_buf, *iwe = &iwe_buf;
932 char *pos, *end, *custom, *buf;
933
934 pos = data;
935 end = data + len;
936
937 while (pos + IW_EV_LCP_LEN <= end) {
938 /* Event data may be unaligned, so make a local, aligned copy
939 * before processing. */
940 memcpy(&iwe_buf, pos, IW_EV_LCP_LEN);
941 wpa_printf(MSG_MSGDUMP, "Wireless event: cmd=0x%x len=%d",
942 iwe->cmd, iwe->len);
943 if (iwe->len <= IW_EV_LCP_LEN)
944 return;
945
946 custom = pos + IW_EV_POINT_LEN;
947 if (drv->we_version > 18 &&
948 (iwe->cmd == IWEVMICHAELMICFAILURE ||
949 iwe->cmd == IWEVCUSTOM)) {
950 /* WE-19 removed the pointer from struct iw_point */
951 char *dpos = (char *) &iwe_buf.u.data.length;
952 int dlen = dpos - (char *) &iwe_buf;
953 memcpy(dpos, pos + IW_EV_LCP_LEN,
954 sizeof(struct iw_event) - dlen);
955 } else {
956 memcpy(&iwe_buf, pos, sizeof(struct iw_event));
957 custom += IW_EV_POINT_OFF;
958 }
959
960 switch (iwe->cmd) {
961 case IWEVEXPIRED:
962 drv_event_disassoc(drv->hapd,
963 (u8 *) iwe->u.addr.sa_data);
964 break;
965 case IWEVREGISTERED:
966 madwifi_new_sta(drv, (u8 *) iwe->u.addr.sa_data);
967 break;
968 case IWEVCUSTOM:
969 if (custom + iwe->u.data.length > end)
970 return;
971 buf = malloc(iwe->u.data.length + 1);
972 if (buf == NULL)
973 return; /* XXX */
974 memcpy(buf, custom, iwe->u.data.length);
975 buf[iwe->u.data.length] = '\0';
976 madwifi_wireless_event_wireless_custom(drv, buf);
977 free(buf);
978 break;
979 }
980
981 pos += iwe->len;
982 }
983 }
984
985
986 static void
madwifi_wireless_event_rtm_newlink(void * ctx,struct ifinfomsg * ifi,u8 * buf,size_t len)987 madwifi_wireless_event_rtm_newlink(void *ctx, struct ifinfomsg *ifi,
988 u8 *buf, size_t len)
989 {
990 struct madwifi_driver_data *drv = ctx;
991 int attrlen, rta_len;
992 struct rtattr *attr;
993
994 if (ifi->ifi_index != drv->ifindex)
995 return;
996
997 attrlen = len;
998 attr = (struct rtattr *) buf;
999
1000 rta_len = RTA_ALIGN(sizeof(struct rtattr));
1001 while (RTA_OK(attr, attrlen)) {
1002 if (attr->rta_type == IFLA_WIRELESS) {
1003 madwifi_wireless_event_wireless(
1004 drv, ((char *) attr) + rta_len,
1005 attr->rta_len - rta_len);
1006 }
1007 attr = RTA_NEXT(attr, attrlen);
1008 }
1009 }
1010
1011
1012 static int
madwifi_get_we_version(struct madwifi_driver_data * drv)1013 madwifi_get_we_version(struct madwifi_driver_data *drv)
1014 {
1015 struct iw_range *range;
1016 struct iwreq iwr;
1017 int minlen;
1018 size_t buflen;
1019
1020 drv->we_version = 0;
1021
1022 /*
1023 * Use larger buffer than struct iw_range in order to allow the
1024 * structure to grow in the future.
1025 */
1026 buflen = sizeof(struct iw_range) + 500;
1027 range = os_zalloc(buflen);
1028 if (range == NULL)
1029 return -1;
1030
1031 memset(&iwr, 0, sizeof(iwr));
1032 os_strlcpy(iwr.ifr_name, drv->iface, IFNAMSIZ);
1033 iwr.u.data.pointer = (caddr_t) range;
1034 iwr.u.data.length = buflen;
1035
1036 minlen = ((char *) &range->enc_capa) - (char *) range +
1037 sizeof(range->enc_capa);
1038
1039 if (ioctl(drv->ioctl_sock, SIOCGIWRANGE, &iwr) < 0) {
1040 perror("ioctl[SIOCGIWRANGE]");
1041 free(range);
1042 return -1;
1043 } else if (iwr.u.data.length >= minlen &&
1044 range->we_version_compiled >= 18) {
1045 wpa_printf(MSG_DEBUG, "SIOCGIWRANGE: WE(compiled)=%d "
1046 "WE(source)=%d enc_capa=0x%x",
1047 range->we_version_compiled,
1048 range->we_version_source,
1049 range->enc_capa);
1050 drv->we_version = range->we_version_compiled;
1051 }
1052
1053 free(range);
1054 return 0;
1055 }
1056
1057
1058 static int
madwifi_wireless_event_init(struct madwifi_driver_data * drv)1059 madwifi_wireless_event_init(struct madwifi_driver_data *drv)
1060 {
1061 struct netlink_config *cfg;
1062
1063 madwifi_get_we_version(drv);
1064
1065 cfg = os_zalloc(sizeof(*cfg));
1066 if (cfg == NULL)
1067 return -1;
1068 cfg->ctx = drv;
1069 cfg->newlink_cb = madwifi_wireless_event_rtm_newlink;
1070 drv->netlink = netlink_init(cfg);
1071 if (drv->netlink == NULL) {
1072 os_free(cfg);
1073 return -1;
1074 }
1075
1076 return 0;
1077 }
1078
1079
1080 static int
madwifi_send_eapol(void * priv,const u8 * addr,const u8 * data,size_t data_len,int encrypt,const u8 * own_addr,u32 flags)1081 madwifi_send_eapol(void *priv, const u8 *addr, const u8 *data, size_t data_len,
1082 int encrypt, const u8 *own_addr, u32 flags)
1083 {
1084 struct madwifi_driver_data *drv = priv;
1085 unsigned char buf[3000];
1086 unsigned char *bp = buf;
1087 struct l2_ethhdr *eth;
1088 size_t len;
1089 int status;
1090
1091 /*
1092 * Prepend the Ethernet header. If the caller left us
1093 * space at the front we could just insert it but since
1094 * we don't know we copy to a local buffer. Given the frequency
1095 * and size of frames this probably doesn't matter.
1096 */
1097 len = data_len + sizeof(struct l2_ethhdr);
1098 if (len > sizeof(buf)) {
1099 bp = malloc(len);
1100 if (bp == NULL) {
1101 printf("EAPOL frame discarded, cannot malloc temp "
1102 "buffer of size %lu!\n", (unsigned long) len);
1103 return -1;
1104 }
1105 }
1106 eth = (struct l2_ethhdr *) bp;
1107 memcpy(eth->h_dest, addr, ETH_ALEN);
1108 memcpy(eth->h_source, own_addr, ETH_ALEN);
1109 eth->h_proto = host_to_be16(ETH_P_EAPOL);
1110 memcpy(eth+1, data, data_len);
1111
1112 wpa_hexdump(MSG_MSGDUMP, "TX EAPOL", bp, len);
1113
1114 status = l2_packet_send(drv->sock_xmit, addr, ETH_P_EAPOL, bp, len);
1115
1116 if (bp != buf)
1117 free(bp);
1118 return status;
1119 }
1120
1121 static void
handle_read(void * ctx,const u8 * src_addr,const u8 * buf,size_t len)1122 handle_read(void *ctx, const u8 *src_addr, const u8 *buf, size_t len)
1123 {
1124 struct madwifi_driver_data *drv = ctx;
1125 drv_event_eapol_rx(drv->hapd, src_addr, buf + sizeof(struct l2_ethhdr),
1126 len - sizeof(struct l2_ethhdr));
1127 }
1128
1129 static void *
madwifi_init(struct hostapd_data * hapd,struct wpa_init_params * params)1130 madwifi_init(struct hostapd_data *hapd, struct wpa_init_params *params)
1131 {
1132 struct madwifi_driver_data *drv;
1133 struct ifreq ifr;
1134 struct iwreq iwr;
1135 char brname[IFNAMSIZ];
1136
1137 drv = os_zalloc(sizeof(struct madwifi_driver_data));
1138 if (drv == NULL) {
1139 printf("Could not allocate memory for madwifi driver data\n");
1140 return NULL;
1141 }
1142
1143 drv->hapd = hapd;
1144 drv->ioctl_sock = socket(PF_INET, SOCK_DGRAM, 0);
1145 if (drv->ioctl_sock < 0) {
1146 perror("socket[PF_INET,SOCK_DGRAM]");
1147 goto bad;
1148 }
1149 memcpy(drv->iface, params->ifname, sizeof(drv->iface));
1150
1151 memset(&ifr, 0, sizeof(ifr));
1152 os_strlcpy(ifr.ifr_name, drv->iface, sizeof(ifr.ifr_name));
1153 if (ioctl(drv->ioctl_sock, SIOCGIFINDEX, &ifr) != 0) {
1154 perror("ioctl(SIOCGIFINDEX)");
1155 goto bad;
1156 }
1157 drv->ifindex = ifr.ifr_ifindex;
1158
1159 drv->sock_xmit = l2_packet_init(drv->iface, NULL, ETH_P_EAPOL,
1160 handle_read, drv, 1);
1161 if (drv->sock_xmit == NULL)
1162 goto bad;
1163 if (l2_packet_get_own_addr(drv->sock_xmit, params->own_addr))
1164 goto bad;
1165 if (params->bridge[0]) {
1166 wpa_printf(MSG_DEBUG, "Configure bridge %s for EAPOL traffic.",
1167 params->bridge[0]);
1168 drv->sock_recv = l2_packet_init(params->bridge[0], NULL,
1169 ETH_P_EAPOL, handle_read, drv,
1170 1);
1171 if (drv->sock_recv == NULL)
1172 goto bad;
1173 } else if (linux_br_get(brname, drv->iface) == 0) {
1174 wpa_printf(MSG_DEBUG, "Interface in bridge %s; configure for "
1175 "EAPOL receive", brname);
1176 drv->sock_recv = l2_packet_init(brname, NULL, ETH_P_EAPOL,
1177 handle_read, drv, 1);
1178 if (drv->sock_recv == NULL)
1179 goto bad;
1180 } else
1181 drv->sock_recv = drv->sock_xmit;
1182
1183 memset(&iwr, 0, sizeof(iwr));
1184 os_strlcpy(iwr.ifr_name, drv->iface, IFNAMSIZ);
1185
1186 iwr.u.mode = IW_MODE_MASTER;
1187
1188 if (ioctl(drv->ioctl_sock, SIOCSIWMODE, &iwr) < 0) {
1189 perror("ioctl[SIOCSIWMODE]");
1190 printf("Could not set interface to master mode!\n");
1191 goto bad;
1192 }
1193
1194 /* mark down during setup */
1195 linux_set_iface_flags(drv->ioctl_sock, drv->iface, 0);
1196 madwifi_set_privacy(drv, 0); /* default to no privacy */
1197
1198 madwifi_receive_probe_req(drv);
1199
1200 if (madwifi_wireless_event_init(drv))
1201 goto bad;
1202
1203 return drv;
1204 bad:
1205 if (drv->sock_xmit != NULL)
1206 l2_packet_deinit(drv->sock_xmit);
1207 if (drv->ioctl_sock >= 0)
1208 close(drv->ioctl_sock);
1209 if (drv != NULL)
1210 free(drv);
1211 return NULL;
1212 }
1213
1214
1215 static void
madwifi_deinit(void * priv)1216 madwifi_deinit(void *priv)
1217 {
1218 struct madwifi_driver_data *drv = priv;
1219
1220 netlink_deinit(drv->netlink);
1221 (void) linux_set_iface_flags(drv->ioctl_sock, drv->iface, 0);
1222 if (drv->ioctl_sock >= 0)
1223 close(drv->ioctl_sock);
1224 if (drv->sock_recv != NULL && drv->sock_recv != drv->sock_xmit)
1225 l2_packet_deinit(drv->sock_recv);
1226 if (drv->sock_xmit != NULL)
1227 l2_packet_deinit(drv->sock_xmit);
1228 if (drv->sock_raw)
1229 l2_packet_deinit(drv->sock_raw);
1230 free(drv);
1231 }
1232
1233 static int
madwifi_set_ssid(void * priv,const u8 * buf,int len)1234 madwifi_set_ssid(void *priv, const u8 *buf, int len)
1235 {
1236 struct madwifi_driver_data *drv = priv;
1237 struct iwreq iwr;
1238
1239 memset(&iwr, 0, sizeof(iwr));
1240 os_strlcpy(iwr.ifr_name, drv->iface, IFNAMSIZ);
1241 iwr.u.essid.flags = 1; /* SSID active */
1242 iwr.u.essid.pointer = (caddr_t) buf;
1243 iwr.u.essid.length = len + 1;
1244
1245 if (ioctl(drv->ioctl_sock, SIOCSIWESSID, &iwr) < 0) {
1246 perror("ioctl[SIOCSIWESSID]");
1247 printf("len=%d\n", len);
1248 return -1;
1249 }
1250 return 0;
1251 }
1252
1253 static int
madwifi_get_ssid(void * priv,u8 * buf,int len)1254 madwifi_get_ssid(void *priv, u8 *buf, int len)
1255 {
1256 struct madwifi_driver_data *drv = priv;
1257 struct iwreq iwr;
1258 int ret = 0;
1259
1260 memset(&iwr, 0, sizeof(iwr));
1261 os_strlcpy(iwr.ifr_name, drv->iface, IFNAMSIZ);
1262 iwr.u.essid.pointer = (caddr_t) buf;
1263 iwr.u.essid.length = len;
1264
1265 if (ioctl(drv->ioctl_sock, SIOCGIWESSID, &iwr) < 0) {
1266 perror("ioctl[SIOCGIWESSID]");
1267 ret = -1;
1268 } else
1269 ret = iwr.u.essid.length;
1270
1271 return ret;
1272 }
1273
1274 static int
madwifi_set_countermeasures(void * priv,int enabled)1275 madwifi_set_countermeasures(void *priv, int enabled)
1276 {
1277 struct madwifi_driver_data *drv = priv;
1278 wpa_printf(MSG_DEBUG, "%s: enabled=%d", __FUNCTION__, enabled);
1279 return set80211param(drv, IEEE80211_PARAM_COUNTERMEASURES, enabled);
1280 }
1281
1282 static int
madwifi_commit(void * priv)1283 madwifi_commit(void *priv)
1284 {
1285 struct madwifi_driver_data *drv = priv;
1286 return linux_set_iface_flags(drv->ioctl_sock, drv->iface, 1);
1287 }
1288
1289
1290 const struct wpa_driver_ops wpa_driver_madwifi_ops = {
1291 .name = "madwifi",
1292 .desc = "MADWIFI 802.11 support (Atheros, etc.)",
1293 .set_key = wpa_driver_madwifi_set_key,
1294 .hapd_init = madwifi_init,
1295 .hapd_deinit = madwifi_deinit,
1296 .set_ieee8021x = madwifi_set_ieee8021x,
1297 .set_privacy = madwifi_set_privacy,
1298 .get_seqnum = madwifi_get_seqnum,
1299 .flush = madwifi_flush,
1300 .set_generic_elem = madwifi_set_opt_ie,
1301 .sta_set_flags = madwifi_sta_set_flags,
1302 .read_sta_data = madwifi_read_sta_driver_data,
1303 .hapd_send_eapol = madwifi_send_eapol,
1304 .sta_disassoc = madwifi_sta_disassoc,
1305 .sta_deauth = madwifi_sta_deauth,
1306 .hapd_set_ssid = madwifi_set_ssid,
1307 .hapd_get_ssid = madwifi_get_ssid,
1308 .hapd_set_countermeasures = madwifi_set_countermeasures,
1309 .sta_clear_stats = madwifi_sta_clear_stats,
1310 .commit = madwifi_commit,
1311 .set_ap_wps_ie = madwifi_set_ap_wps_ie,
1312 .set_freq = madwifi_set_freq,
1313 };
1314