xref: /dragonfly/contrib/wpa_supplicant/src/drivers/driver_bsd.c (revision 3a84a4273475ed07d0ab1c2dfeffdfedef35d9cd)
1 /*
2  * WPA Supplicant - driver interaction with BSD net80211 layer
3  * Copyright (c) 2004, Sam Leffler <sam@errno.com>
4  * Copyright (c) 2004, 2Wire, Inc
5  *
6  * This software may be distributed under the terms of the BSD license.
7  * See README for more details.
8  */
9 
10 #include "includes.h"
11 #include <sys/ioctl.h>
12 #include <sys/sysctl.h>
13 
14 #include "common.h"
15 #include "driver.h"
16 #include "eloop.h"
17 #include "common/ieee802_11_defs.h"
18 #include "common/wpa_common.h"
19 
20 #include <net/if.h>
21 #include <net/if_media.h>
22 
23 #ifdef __NetBSD__
24 #include <net/if_ether.h>
25 #else
26 #include <net/ethernet.h>
27 #endif
28 #include <net/route.h>
29 
30 #ifdef __DragonFly__
31 #include <netproto/802_11/ieee80211_ioctl.h>
32 #include <netproto/802_11/ieee80211_dragonfly.h>
33 #else /* __DragonFly__ */
34 #ifdef __GLIBC__
35 #include <netinet/ether.h>
36 #endif /* __GLIBC__ */
37 #include <net80211/ieee80211.h>
38 #include <net80211/ieee80211_ioctl.h>
39 #include <net80211/ieee80211_crypto.h>
40 #endif /* __DragonFly__ || __GLIBC__ */
41 #if defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
42 #include <net80211/ieee80211_freebsd.h>
43 #endif
44 #if __NetBSD__
45 #include <net80211/ieee80211_netbsd.h>
46 #endif
47 
48 #include "l2_packet/l2_packet.h"
49 
50 struct bsd_driver_global {
51           void                *ctx;
52           int                 sock;                         /* socket for 802.11 ioctls */
53           int                 route;                        /* routing socket for events */
54           char                *event_buf;
55           size_t              event_buf_len;
56           struct dl_list      ifaces;                       /* list of interfaces */
57 };
58 
59 struct bsd_driver_data {
60           struct dl_list      list;
61           struct bsd_driver_global *global;
62           struct hostapd_data *hapd;    /* back pointer */
63 
64           struct l2_packet_data *sock_xmit;/* raw packet xmit socket */
65           char      ifname[IFNAMSIZ+1]; /* interface name */
66           int       flags;
67           unsigned int ifindex;                   /* interface index */
68           int       if_removed;                   /* has the interface been removed? */
69           void      *ctx;
70           struct wpa_driver_capa capa;  /* driver capability */
71           int       is_ap;                        /* Access point mode */
72           int       prev_roaming;       /* roaming state to restore on deinit */
73           int       prev_privacy;       /* privacy state to restore on deinit */
74           int       prev_wpa; /* wpa state to restore on deinit */
75           enum ieee80211_opmode opmode; /* operation mode */
76 };
77 
78 /* Generic functions for hostapd and wpa_supplicant */
79 
80 static struct bsd_driver_data *
bsd_get_drvindex(void * priv,unsigned int ifindex)81 bsd_get_drvindex(void *priv, unsigned int ifindex)
82 {
83           struct bsd_driver_global *global = priv;
84           struct bsd_driver_data *drv;
85 
86           dl_list_for_each(drv, &global->ifaces, struct bsd_driver_data, list) {
87                     if (drv->ifindex == ifindex)
88                               return drv;
89           }
90           return NULL;
91 }
92 
93 #ifndef HOSTAPD
94 static struct bsd_driver_data *
bsd_get_drvname(void * priv,const char * ifname)95 bsd_get_drvname(void *priv, const char *ifname)
96 {
97           struct bsd_driver_global *global = priv;
98           struct bsd_driver_data *drv;
99 
100           dl_list_for_each(drv, &global->ifaces, struct bsd_driver_data, list) {
101                     if (os_strcmp(drv->ifname, ifname) == 0)
102                               return drv;
103           }
104           return NULL;
105 }
106 #endif /* HOSTAPD */
107 
108 static int
bsd_set80211(void * priv,int op,int val,const void * arg,int arg_len)109 bsd_set80211(void *priv, int op, int val, const void *arg, int arg_len)
110 {
111           struct bsd_driver_data *drv = priv;
112           struct ieee80211req ireq;
113 
114           if (drv->ifindex == 0 || drv->if_removed)
115                     return -1;
116 
117           os_memset(&ireq, 0, sizeof(ireq));
118           os_strlcpy(ireq.i_name, drv->ifname, sizeof(ireq.i_name));
119           ireq.i_type = op;
120           ireq.i_val = val;
121           ireq.i_data = (void *) arg;
122           ireq.i_len = arg_len;
123 
124           if (ioctl(drv->global->sock, SIOCS80211, &ireq) < 0) {
125                     wpa_printf(MSG_ERROR, "ioctl[SIOCS80211, op=%u, val=%u, "
126                                  "arg_len=%u]: %s", op, val, arg_len,
127                                  strerror(errno));
128                     return -1;
129           }
130           return 0;
131 }
132 
133 static int
bsd_get80211(void * priv,struct ieee80211req * ireq,int op,void * arg,int arg_len)134 bsd_get80211(void *priv, struct ieee80211req *ireq, int op, void *arg,
135                int arg_len)
136 {
137           struct bsd_driver_data *drv = priv;
138 
139           os_memset(ireq, 0, sizeof(*ireq));
140           os_strlcpy(ireq->i_name, drv->ifname, sizeof(ireq->i_name));
141           ireq->i_type = op;
142           ireq->i_len = arg_len;
143           ireq->i_data = arg;
144 
145           if (ioctl(drv->global->sock, SIOCG80211, ireq) < 0) {
146                     wpa_printf(MSG_ERROR, "ioctl[SIOCG80211, op=%u, "
147                                  "arg_len=%u]: %s", op, arg_len, strerror(errno));
148                     return -1;
149           }
150           return 0;
151 }
152 
153 static int
get80211var(struct bsd_driver_data * drv,int op,void * arg,int arg_len)154 get80211var(struct bsd_driver_data *drv, int op, void *arg, int arg_len)
155 {
156           struct ieee80211req ireq;
157 
158           if (bsd_get80211(drv, &ireq, op, arg, arg_len) < 0)
159                     return -1;
160           return ireq.i_len;
161 }
162 
163 static int
set80211var(struct bsd_driver_data * drv,int op,const void * arg,int arg_len)164 set80211var(struct bsd_driver_data *drv, int op, const void *arg, int arg_len)
165 {
166           return bsd_set80211(drv, op, 0, arg, arg_len);
167 }
168 
169 static int
set80211param(struct bsd_driver_data * drv,int op,int arg)170 set80211param(struct bsd_driver_data *drv, int op, int arg)
171 {
172           return bsd_set80211(drv, op, arg, NULL, 0);
173 }
174 
175 static int
bsd_get_ssid(void * priv,u8 * ssid,int len)176 bsd_get_ssid(void *priv, u8 *ssid, int len)
177 {
178           struct bsd_driver_data *drv = priv;
179 #ifdef SIOCG80211NWID
180           struct ieee80211_nwid nwid;
181           struct ifreq ifr;
182 
183           os_memset(&ifr, 0, sizeof(ifr));
184           os_strlcpy(ifr.ifr_name, drv->ifname, sizeof(ifr.ifr_name));
185           ifr.ifr_data = (void *)&nwid;
186           if (ioctl(drv->global->sock, SIOCG80211NWID, &ifr) < 0 ||
187               nwid.i_len > IEEE80211_NWID_LEN)
188                     return -1;
189           os_memcpy(ssid, nwid.i_nwid, nwid.i_len);
190           return nwid.i_len;
191 #else
192           return get80211var(drv, IEEE80211_IOC_SSID, ssid, IEEE80211_NWID_LEN);
193 #endif
194 }
195 
196 static int
bsd_set_ssid(void * priv,const u8 * ssid,int ssid_len)197 bsd_set_ssid(void *priv, const u8 *ssid, int ssid_len)
198 {
199           struct bsd_driver_data *drv = priv;
200 #ifdef SIOCS80211NWID
201           struct ieee80211_nwid nwid;
202           struct ifreq ifr;
203 
204           os_memcpy(nwid.i_nwid, ssid, ssid_len);
205           nwid.i_len = ssid_len;
206           os_memset(&ifr, 0, sizeof(ifr));
207           os_strlcpy(ifr.ifr_name, drv->ifname, sizeof(ifr.ifr_name));
208           ifr.ifr_data = (void *)&nwid;
209           return ioctl(drv->global->sock, SIOCS80211NWID, &ifr);
210 #else
211           return set80211var(drv, IEEE80211_IOC_SSID, ssid, ssid_len);
212 #endif
213 }
214 
215 static int
bsd_get_if_media(void * priv)216 bsd_get_if_media(void *priv)
217 {
218           struct bsd_driver_data *drv = priv;
219           struct ifmediareq ifmr;
220 
221           os_memset(&ifmr, 0, sizeof(ifmr));
222           os_strlcpy(ifmr.ifm_name, drv->ifname, sizeof(ifmr.ifm_name));
223 
224           if (ioctl(drv->global->sock, SIOCGIFMEDIA, &ifmr) < 0) {
225                     wpa_printf(MSG_ERROR, "%s: SIOCGIFMEDIA %s", __func__,
226                                  strerror(errno));
227                     return -1;
228           }
229 
230           return ifmr.ifm_current;
231 }
232 
233 static int
bsd_set_if_media(void * priv,int media)234 bsd_set_if_media(void *priv, int media)
235 {
236           struct bsd_driver_data *drv = priv;
237           struct ifreq ifr;
238 
239           os_memset(&ifr, 0, sizeof(ifr));
240           os_strlcpy(ifr.ifr_name, drv->ifname, sizeof(ifr.ifr_name));
241           ifr.ifr_media = media;
242 
243           if (ioctl(drv->global->sock, SIOCSIFMEDIA, &ifr) < 0) {
244                     wpa_printf(MSG_ERROR, "%s: SIOCSIFMEDIA %s", __func__,
245                                  strerror(errno));
246                     return -1;
247           }
248 
249           return 0;
250 }
251 
252 static int
bsd_set_mediaopt(void * priv,uint32_t mask,uint32_t mode)253 bsd_set_mediaopt(void *priv, uint32_t mask, uint32_t mode)
254 {
255           int media = bsd_get_if_media(priv);
256 
257           if (media < 0)
258                     return -1;
259           media &= ~mask;
260           media |= mode;
261           if (bsd_set_if_media(priv, media) < 0)
262                     return -1;
263           return 0;
264 }
265 
266 static int
bsd_del_key(void * priv,const u8 * addr,int key_idx)267 bsd_del_key(void *priv, const u8 *addr, int key_idx)
268 {
269           struct ieee80211req_del_key wk;
270 
271           os_memset(&wk, 0, sizeof(wk));
272           if (addr == NULL) {
273                     wpa_printf(MSG_DEBUG, "%s: key_idx=%d", __func__, key_idx);
274                     wk.idk_keyix = key_idx;
275           } else {
276                     wpa_printf(MSG_DEBUG, "%s: addr=" MACSTR, __func__,
277                                  MAC2STR(addr));
278                     os_memcpy(wk.idk_macaddr, addr, IEEE80211_ADDR_LEN);
279                     wk.idk_keyix = (u_int8_t) IEEE80211_KEYIX_NONE;   /* XXX */
280           }
281 
282           return set80211var(priv, IEEE80211_IOC_DELKEY, &wk, sizeof(wk));
283 }
284 
285 static int
bsd_send_mlme_param(void * priv,const u8 op,const u16 reason,const u8 * addr)286 bsd_send_mlme_param(void *priv, const u8 op, const u16 reason, const u8 *addr)
287 {
288           struct ieee80211req_mlme mlme;
289 
290           os_memset(&mlme, 0, sizeof(mlme));
291           mlme.im_op = op;
292           mlme.im_reason = reason;
293           os_memcpy(mlme.im_macaddr, addr, IEEE80211_ADDR_LEN);
294           return set80211var(priv, IEEE80211_IOC_MLME, &mlme, sizeof(mlme));
295 }
296 
297 static int
bsd_ctrl_iface(void * priv,int enable)298 bsd_ctrl_iface(void *priv, int enable)
299 {
300           struct bsd_driver_data *drv = priv;
301           struct ifreq ifr;
302 
303           os_memset(&ifr, 0, sizeof(ifr));
304           os_strlcpy(ifr.ifr_name, drv->ifname, sizeof(ifr.ifr_name));
305 
306           if (ioctl(drv->global->sock, SIOCGIFFLAGS, &ifr) < 0) {
307                     wpa_printf(MSG_ERROR, "ioctl[SIOCGIFFLAGS]: %s",
308                                  strerror(errno));
309                     return -1;
310           }
311           drv->flags = ifr.ifr_flags;
312 
313           if (enable) {
314                     if (ifr.ifr_flags & IFF_UP)
315                               return 0;
316                     ifr.ifr_flags |= IFF_UP;
317           } else {
318                     if (!(ifr.ifr_flags & IFF_UP))
319                               return 0;
320                     ifr.ifr_flags &= ~IFF_UP;
321           }
322 
323           if (ioctl(drv->global->sock, SIOCSIFFLAGS, &ifr) < 0) {
324                     wpa_printf(MSG_ERROR, "ioctl[SIOCSIFFLAGS]: %s",
325                                  strerror(errno));
326                     return -1;
327           }
328 
329           drv->flags = ifr.ifr_flags;
330           return 0;
331 }
332 
333 static int
bsd_set_key(const char * ifname,void * priv,enum wpa_alg alg,const unsigned char * addr,int key_idx,int set_tx,const u8 * seq,size_t seq_len,const u8 * key,size_t key_len)334 bsd_set_key(const char *ifname, void *priv, enum wpa_alg alg,
335               const unsigned char *addr, int key_idx, int set_tx, const u8 *seq,
336               size_t seq_len, const u8 *key, size_t key_len)
337 {
338           struct ieee80211req_key wk;
339 #ifdef IEEE80211_KEY_NOREPLAY
340           struct bsd_driver_data *drv = priv;
341 #endif /* IEEE80211_KEY_NOREPLAY */
342 
343           wpa_printf(MSG_DEBUG, "%s: alg=%d addr=%p key_idx=%d set_tx=%d "
344                        "seq_len=%zu key_len=%zu", __func__, alg, addr, key_idx,
345                        set_tx, seq_len, key_len);
346 
347           if (alg == WPA_ALG_NONE) {
348 #ifndef HOSTAPD
349                     if (addr == NULL || is_broadcast_ether_addr(addr))
350                               return bsd_del_key(priv, NULL, key_idx);
351                     else
352 #endif /* HOSTAPD */
353                               return bsd_del_key(priv, addr, key_idx);
354           }
355 
356           os_memset(&wk, 0, sizeof(wk));
357           switch (alg) {
358           case WPA_ALG_WEP:
359                     wk.ik_type = IEEE80211_CIPHER_WEP;
360                     break;
361           case WPA_ALG_TKIP:
362                     wk.ik_type = IEEE80211_CIPHER_TKIP;
363                     break;
364           case WPA_ALG_CCMP:
365                     wk.ik_type = IEEE80211_CIPHER_AES_CCM;
366                     break;
367           default:
368                     wpa_printf(MSG_ERROR, "%s: unknown alg=%d", __func__, alg);
369                     return -1;
370           }
371 
372           wk.ik_flags = IEEE80211_KEY_RECV;
373           if (set_tx)
374                     wk.ik_flags |= IEEE80211_KEY_XMIT;
375 
376           if (addr == NULL) {
377                     os_memset(wk.ik_macaddr, 0xff, IEEE80211_ADDR_LEN);
378                     wk.ik_keyix = key_idx;
379           } else {
380                     os_memcpy(wk.ik_macaddr, addr, IEEE80211_ADDR_LEN);
381                     /*
382                      * Deduce whether group/global or unicast key by checking
383                      * the address (yech).  Note also that we can only mark global
384                      * keys default; doing this for a unicast key is an error.
385                      */
386                     if (is_broadcast_ether_addr(addr)) {
387                               wk.ik_flags |= IEEE80211_KEY_GROUP;
388                               wk.ik_keyix = key_idx;
389                     } else {
390                               wk.ik_keyix = key_idx == 0 ? IEEE80211_KEYIX_NONE :
391                                         key_idx;
392                     }
393           }
394           if (wk.ik_keyix != IEEE80211_KEYIX_NONE && set_tx)
395                     wk.ik_flags |= IEEE80211_KEY_DEFAULT;
396 #ifndef HOSTAPD
397 #ifdef IEEE80211_KEY_NOREPLAY
398           /*
399            * Ignore replay failures in IBSS and AHDEMO mode.
400            */
401           if (drv->opmode == IEEE80211_M_IBSS ||
402               drv->opmode == IEEE80211_M_AHDEMO)
403                     wk.ik_flags |= IEEE80211_KEY_NOREPLAY;
404 #endif /* IEEE80211_KEY_NOREPLAY */
405 #endif /* HOSTAPD */
406           wk.ik_keylen = key_len;
407           if (seq) {
408 #ifdef WORDS_BIGENDIAN
409                     /*
410                      * wk.ik_keyrsc is in host byte order (big endian), need to
411                      * swap it to match with the byte order used in WPA.
412                      */
413                     int i;
414                     u8 *keyrsc = (u8 *) &wk.ik_keyrsc;
415                     for (i = 0; i < seq_len; i++)
416                               keyrsc[WPA_KEY_RSC_LEN - i - 1] = seq[i];
417 #else /* WORDS_BIGENDIAN */
418                     os_memcpy(&wk.ik_keyrsc, seq, seq_len);
419 #endif /* WORDS_BIGENDIAN */
420           }
421           os_memcpy(wk.ik_keydata, key, key_len);
422 
423           return set80211var(priv, IEEE80211_IOC_WPAKEY, &wk, sizeof(wk));
424 }
425 
426 static int
bsd_configure_wpa(void * priv,struct wpa_bss_params * params)427 bsd_configure_wpa(void *priv, struct wpa_bss_params *params)
428 {
429 #ifndef IEEE80211_IOC_APPIE
430           static const char *ciphernames[] =
431                     { "WEP", "TKIP", "AES-OCB", "AES-CCM", "CKIP", "NONE" };
432           int v;
433 
434           switch (params->wpa_group) {
435           case WPA_CIPHER_CCMP:
436                     v = IEEE80211_CIPHER_AES_CCM;
437                     break;
438           case WPA_CIPHER_TKIP:
439                     v = IEEE80211_CIPHER_TKIP;
440                     break;
441           case WPA_CIPHER_WEP104:
442                     v = IEEE80211_CIPHER_WEP;
443                     break;
444           case WPA_CIPHER_WEP40:
445                     v = IEEE80211_CIPHER_WEP;
446                     break;
447           case WPA_CIPHER_NONE:
448                     v = IEEE80211_CIPHER_NONE;
449                     break;
450           default:
451                     wpa_printf(MSG_INFO, "Unknown group key cipher %u",
452                                  params->wpa_group);
453                     return -1;
454           }
455           wpa_printf(MSG_DEBUG, "%s: group key cipher=%s (%u)",
456                        __func__, ciphernames[v], v);
457           if (set80211param(priv, IEEE80211_IOC_MCASTCIPHER, v)) {
458                     wpa_printf(MSG_INFO,
459                                  "Unable to set group key cipher to %u (%s)",
460                                  v, ciphernames[v]);
461                     return -1;
462           }
463           if (v == IEEE80211_CIPHER_WEP) {
464                     /* key length is done only for specific ciphers */
465                     v = (params->wpa_group == WPA_CIPHER_WEP104 ? 13 : 5);
466                     if (set80211param(priv, IEEE80211_IOC_MCASTKEYLEN, v)) {
467                               wpa_printf(MSG_INFO,
468                                            "Unable to set group key length to %u", v);
469                               return -1;
470                     }
471           }
472 
473           v = 0;
474           if (params->wpa_pairwise & WPA_CIPHER_CCMP)
475                     v |= 1<<IEEE80211_CIPHER_AES_CCM;
476           if (params->wpa_pairwise & WPA_CIPHER_TKIP)
477                     v |= 1<<IEEE80211_CIPHER_TKIP;
478           if (params->wpa_pairwise & WPA_CIPHER_NONE)
479                     v |= 1<<IEEE80211_CIPHER_NONE;
480           wpa_printf(MSG_DEBUG, "%s: pairwise key ciphers=0x%x", __func__, v);
481           if (set80211param(priv, IEEE80211_IOC_UCASTCIPHERS, v)) {
482                     wpa_printf(MSG_INFO,
483                                  "Unable to set pairwise key ciphers to 0x%x", v);
484                     return -1;
485           }
486 
487           wpa_printf(MSG_DEBUG, "%s: key management algorithms=0x%x",
488                        __func__, params->wpa_key_mgmt);
489           if (set80211param(priv, IEEE80211_IOC_KEYMGTALGS,
490                                 params->wpa_key_mgmt)) {
491                     wpa_printf(MSG_INFO,
492                                  "Unable to set key management algorithms to 0x%x",
493                                  params->wpa_key_mgmt);
494                     return -1;
495           }
496 
497           v = 0;
498           if (params->rsn_preauth)
499                     v |= BIT(0);
500           wpa_printf(MSG_DEBUG, "%s: rsn capabilities=0x%x",
501                        __func__, params->rsn_preauth);
502           if (set80211param(priv, IEEE80211_IOC_RSNCAPS, v)) {
503                     wpa_printf(MSG_INFO, "Unable to set RSN capabilities to 0x%x",
504                                  v);
505                     return -1;
506           }
507 #endif /* IEEE80211_IOC_APPIE */
508 
509           wpa_printf(MSG_DEBUG, "%s: enable WPA= 0x%x", __func__, params->wpa);
510           if (set80211param(priv, IEEE80211_IOC_WPA, params->wpa)) {
511                     wpa_printf(MSG_INFO, "Unable to set WPA to %u", params->wpa);
512                     return -1;
513           }
514           return 0;
515 }
516 
517 static int
bsd_set_ieee8021x(void * priv,struct wpa_bss_params * params)518 bsd_set_ieee8021x(void *priv, struct wpa_bss_params *params)
519 {
520           wpa_printf(MSG_DEBUG, "%s: enabled=%d", __func__, params->enabled);
521 
522           if (!params->enabled) {
523                     /* XXX restore state */
524                     return set80211param(priv, IEEE80211_IOC_AUTHMODE,
525                                              IEEE80211_AUTH_AUTO);
526           }
527           if (!params->wpa && !params->ieee802_1x) {
528                     wpa_printf(MSG_ERROR, "%s: No 802.1X or WPA enabled",
529                                  __func__);
530                     return -1;
531           }
532           if (params->wpa && bsd_configure_wpa(priv, params) != 0) {
533                     wpa_printf(MSG_ERROR, "%s: Failed to configure WPA state",
534                                  __func__);
535                     return -1;
536           }
537           if (set80211param(priv, IEEE80211_IOC_AUTHMODE,
538                     (params->wpa ? IEEE80211_AUTH_WPA : IEEE80211_AUTH_8021X))) {
539                     wpa_printf(MSG_ERROR, "%s: Failed to enable WPA/802.1X",
540                                  __func__);
541                     return -1;
542           }
543           return bsd_ctrl_iface(priv, 1);
544 }
545 
546 static void
bsd_new_sta(void * priv,void * ctx,u8 addr[IEEE80211_ADDR_LEN])547 bsd_new_sta(void *priv, void *ctx, u8 addr[IEEE80211_ADDR_LEN])
548 {
549           struct ieee80211req_wpaie ie;
550           int ielen = 0;
551           u8 *iebuf = NULL;
552 
553           /*
554            * Fetch and validate any negotiated WPA/RSN parameters.
555            */
556           memset(&ie, 0, sizeof(ie));
557           memcpy(ie.wpa_macaddr, addr, IEEE80211_ADDR_LEN);
558           if (get80211var(priv, IEEE80211_IOC_WPAIE, &ie, sizeof(ie)) < 0) {
559                     wpa_printf(MSG_INFO,
560                                  "Failed to get WPA/RSN information element");
561                     goto no_ie;
562           }
563           iebuf = ie.wpa_ie;
564           ielen = ie.wpa_ie[1];
565           if (ielen == 0)
566                     iebuf = NULL;
567           else
568                     ielen += 2;
569 
570 no_ie:
571           drv_event_assoc(ctx, addr, iebuf, ielen, 0);
572 }
573 
574 static int
bsd_send_eapol(void * priv,const u8 * addr,const u8 * data,size_t data_len,int encrypt,const u8 * own_addr,u32 flags)575 bsd_send_eapol(void *priv, const u8 *addr, const u8 *data, size_t data_len,
576                  int encrypt, const u8 *own_addr, u32 flags)
577 {
578           struct bsd_driver_data *drv = priv;
579 
580           wpa_hexdump(MSG_MSGDUMP, "TX EAPOL", data, data_len);
581 
582           return l2_packet_send(drv->sock_xmit, addr, ETH_P_EAPOL, data,
583                                     data_len);
584 }
585 
586 static int
bsd_set_freq(void * priv,struct hostapd_freq_params * freq)587 bsd_set_freq(void *priv, struct hostapd_freq_params *freq)
588 {
589           struct bsd_driver_data *drv = priv;
590 #ifdef SIOCS80211CHANNEL
591           struct ieee80211chanreq creq;
592 #endif /* SIOCS80211CHANNEL */
593           u32 mode;
594           int channel = freq->channel;
595 
596           if (channel < 14) {
597                     mode =
598 #ifdef CONFIG_IEEE80211N
599                               freq->ht_enabled ? IFM_IEEE80211_11NG :
600 #endif /* CONFIG_IEEE80211N */
601                             IFM_IEEE80211_11G;
602           } else if (channel == 14) {
603                     mode = IFM_IEEE80211_11B;
604           } else {
605                     mode =
606 #ifdef CONFIG_IEEE80211N
607                               freq->ht_enabled ? IFM_IEEE80211_11NA :
608 #endif /* CONFIG_IEEE80211N */
609                               IFM_IEEE80211_11A;
610           }
611           if (bsd_set_mediaopt(drv, IFM_MMASK, mode) < 0) {
612                     wpa_printf(MSG_ERROR, "%s: failed to set modulation mode",
613                                  __func__);
614                     return -1;
615           }
616 
617 #ifdef SIOCS80211CHANNEL
618           os_memset(&creq, 0, sizeof(creq));
619           os_strlcpy(creq.i_name, drv->ifname, sizeof(creq.i_name));
620           creq.i_channel = (u_int16_t)channel;
621           return ioctl(drv->global->sock, SIOCS80211CHANNEL, &creq);
622 #else /* SIOCS80211CHANNEL */
623           return set80211param(priv, IEEE80211_IOC_CHANNEL, channel);
624 #endif /* SIOCS80211CHANNEL */
625 }
626 
627 static int
bsd_set_opt_ie(void * priv,const u8 * ie,size_t ie_len)628 bsd_set_opt_ie(void *priv, const u8 *ie, size_t ie_len)
629 {
630 #ifdef IEEE80211_IOC_APPIE
631           wpa_printf(MSG_DEBUG, "%s: set WPA+RSN ie (len %lu)", __func__,
632                        (unsigned long)ie_len);
633           return bsd_set80211(priv, IEEE80211_IOC_APPIE, IEEE80211_APPIE_WPA,
634                                   ie, ie_len);
635 #endif /* IEEE80211_IOC_APPIE */
636           return 0;
637 }
638 
639 static size_t
rtbuf_len(void)640 rtbuf_len(void)
641 {
642           size_t len;
643 
644           int mib[6] = {CTL_NET, AF_ROUTE, 0, AF_INET, NET_RT_DUMP, 0};
645 
646           if (sysctl(mib, 6, NULL, &len, NULL, 0) < 0) {
647                     wpa_printf(MSG_WARNING, "%s failed: %s", __func__,
648                                  strerror(errno));
649                     len = 2048;
650           }
651 
652           return len;
653 }
654 
655 #ifdef HOSTAPD
656 
657 /*
658  * Avoid conflicts with hostapd definitions by undefining couple of defines
659  * from net80211 header files.
660  */
661 #undef RSN_VERSION
662 #undef WPA_VERSION
663 #undef WPA_OUI_TYPE
664 
665 static int bsd_sta_deauth(void *priv, const u8 *own_addr, const u8 *addr,
666                                 u16 reason_code);
667 
668 static const char *
ether_sprintf(const u8 * addr)669 ether_sprintf(const u8 *addr)
670 {
671           static char buf[sizeof(MACSTR)];
672 
673           if (addr != NULL)
674                     snprintf(buf, sizeof(buf), MACSTR, MAC2STR(addr));
675           else
676                     snprintf(buf, sizeof(buf), MACSTR, 0,0,0,0,0,0);
677           return buf;
678 }
679 
680 static int
bsd_set_privacy(void * priv,int enabled)681 bsd_set_privacy(void *priv, int enabled)
682 {
683           wpa_printf(MSG_DEBUG, "%s: enabled=%d", __func__, enabled);
684 
685           return set80211param(priv, IEEE80211_IOC_PRIVACY, enabled);
686 }
687 
688 static int
bsd_get_seqnum(const char * ifname,void * priv,const u8 * addr,int idx,u8 * seq)689 bsd_get_seqnum(const char *ifname, void *priv, const u8 *addr, int idx,
690                  u8 *seq)
691 {
692           struct ieee80211req_key wk;
693 
694           wpa_printf(MSG_DEBUG, "%s: addr=%s idx=%d",
695                        __func__, ether_sprintf(addr), idx);
696 
697           memset(&wk, 0, sizeof(wk));
698           if (addr == NULL)
699                     memset(wk.ik_macaddr, 0xff, IEEE80211_ADDR_LEN);
700           else
701                     memcpy(wk.ik_macaddr, addr, IEEE80211_ADDR_LEN);
702           wk.ik_keyix = idx;
703 
704           if (get80211var(priv, IEEE80211_IOC_WPAKEY, &wk, sizeof(wk)) < 0) {
705                     wpa_printf(MSG_INFO, "Failed to get encryption");
706                     return -1;
707           }
708 
709 #ifdef WORDS_BIGENDIAN
710           {
711                     /*
712                      * wk.ik_keytsc is in host byte order (big endian), need to
713                      * swap it to match with the byte order used in WPA.
714                      */
715                     int i;
716                     u8 tmp[WPA_KEY_RSC_LEN];
717                     memcpy(tmp, &wk.ik_keytsc, sizeof(wk.ik_keytsc));
718                     for (i = 0; i < WPA_KEY_RSC_LEN; i++) {
719                               seq[i] = tmp[WPA_KEY_RSC_LEN - i - 1];
720                     }
721           }
722 #else /* WORDS_BIGENDIAN */
723           memcpy(seq, &wk.ik_keytsc, sizeof(wk.ik_keytsc));
724 #endif /* WORDS_BIGENDIAN */
725           return 0;
726 }
727 
728 
729 static int
bsd_flush(void * priv)730 bsd_flush(void *priv)
731 {
732           u8 allsta[IEEE80211_ADDR_LEN];
733 
734           memset(allsta, 0xff, IEEE80211_ADDR_LEN);
735           return bsd_sta_deauth(priv, NULL, allsta, IEEE80211_REASON_AUTH_LEAVE);
736 }
737 
738 
739 static int
bsd_read_sta_driver_data(void * priv,struct hostap_sta_driver_data * data,const u8 * addr)740 bsd_read_sta_driver_data(void *priv, struct hostap_sta_driver_data *data,
741                                const u8 *addr)
742 {
743           struct ieee80211req_sta_stats stats;
744 
745           memcpy(stats.is_u.macaddr, addr, IEEE80211_ADDR_LEN);
746           if (get80211var(priv, IEEE80211_IOC_STA_STATS, &stats, sizeof(stats))
747               > 0) {
748                     /* XXX? do packets counts include non-data frames? */
749                     data->rx_packets = stats.is_stats.ns_rx_data;
750                     data->rx_bytes = stats.is_stats.ns_rx_bytes;
751                     data->tx_packets = stats.is_stats.ns_tx_data;
752                     data->tx_bytes = stats.is_stats.ns_tx_bytes;
753           }
754           return 0;
755 }
756 
757 static int
bsd_sta_deauth(void * priv,const u8 * own_addr,const u8 * addr,u16 reason_code)758 bsd_sta_deauth(void *priv, const u8 *own_addr, const u8 *addr, u16 reason_code)
759 {
760           return bsd_send_mlme_param(priv, IEEE80211_MLME_DEAUTH, reason_code,
761                                            addr);
762 }
763 
764 static int
bsd_sta_disassoc(void * priv,const u8 * own_addr,const u8 * addr,u16 reason_code)765 bsd_sta_disassoc(void *priv, const u8 *own_addr, const u8 *addr,
766                      u16 reason_code)
767 {
768           return bsd_send_mlme_param(priv, IEEE80211_MLME_DISASSOC, reason_code,
769                                            addr);
770 }
771 
772 static void
bsd_wireless_event_receive(int sock,void * ctx,void * sock_ctx)773 bsd_wireless_event_receive(int sock, void *ctx, void *sock_ctx)
774 {
775           struct bsd_driver_global *global = sock_ctx;
776           struct bsd_driver_data *drv;
777           struct if_announcemsghdr *ifan;
778           struct rt_msghdr *rtm;
779           struct ieee80211_michael_event *mic;
780           struct ieee80211_join_event *join;
781           struct ieee80211_leave_event *leave;
782           int n;
783           union wpa_event_data data;
784 
785           n = read(sock, global->event_buf, global->event_buf_len);
786           if (n < 0) {
787                     if (errno != EINTR && errno != EAGAIN)
788                               wpa_printf(MSG_ERROR, "%s read() failed: %s",
789                                            __func__, strerror(errno));
790                     return;
791           }
792 
793           rtm = (struct rt_msghdr *) global->event_buf;
794           if (rtm->rtm_version != RTM_VERSION) {
795                     wpa_printf(MSG_DEBUG, "Invalid routing message version=%d",
796                                  rtm->rtm_version);
797                     return;
798           }
799           switch (rtm->rtm_type) {
800           case RTM_IEEE80211:
801                     ifan = (struct if_announcemsghdr *) rtm;
802                     drv = bsd_get_drvindex(global, ifan->ifan_index);
803                     if (drv == NULL)
804                               return;
805                     switch (ifan->ifan_what) {
806                     case RTM_IEEE80211_ASSOC:
807                     case RTM_IEEE80211_REASSOC:
808                     case RTM_IEEE80211_DISASSOC:
809                     case RTM_IEEE80211_SCAN:
810                               break;
811                     case RTM_IEEE80211_LEAVE:
812                               leave = (struct ieee80211_leave_event *) &ifan[1];
813                               drv_event_disassoc(drv->hapd, leave->iev_addr);
814                               break;
815                     case RTM_IEEE80211_JOIN:
816 #ifdef RTM_IEEE80211_REJOIN
817                     case RTM_IEEE80211_REJOIN:
818 #endif
819                               join = (struct ieee80211_join_event *) &ifan[1];
820                               bsd_new_sta(drv, drv->hapd, join->iev_addr);
821                               break;
822                     case RTM_IEEE80211_REPLAY:
823                               /* ignore */
824                               break;
825                     case RTM_IEEE80211_MICHAEL:
826                               mic = (struct ieee80211_michael_event *) &ifan[1];
827                               wpa_printf(MSG_DEBUG,
828                                         "Michael MIC failure wireless event: "
829                                         "keyix=%u src_addr=" MACSTR, mic->iev_keyix,
830                                         MAC2STR(mic->iev_src));
831                               os_memset(&data, 0, sizeof(data));
832                               data.michael_mic_failure.unicast = 1;
833                               data.michael_mic_failure.src = mic->iev_src;
834                               wpa_supplicant_event(drv->hapd,
835                                                        EVENT_MICHAEL_MIC_FAILURE, &data);
836                               break;
837                     }
838                     break;
839           }
840 }
841 
842 static void
handle_read(void * ctx,const u8 * src_addr,const u8 * buf,size_t len)843 handle_read(void *ctx, const u8 *src_addr, const u8 *buf, size_t len)
844 {
845           struct bsd_driver_data *drv = ctx;
846           drv_event_eapol_rx(drv->hapd, src_addr, buf, len);
847 }
848 
849 static void *
bsd_init(struct hostapd_data * hapd,struct wpa_init_params * params)850 bsd_init(struct hostapd_data *hapd, struct wpa_init_params *params)
851 {
852           struct bsd_driver_data *drv;
853 
854           drv = os_zalloc(sizeof(struct bsd_driver_data));
855           if (drv == NULL) {
856                     wpa_printf(MSG_ERROR, "Could not allocate memory for bsd driver data");
857                     return NULL;
858           }
859 
860           drv->ifindex = if_nametoindex(params->ifname);
861           if (drv->ifindex == 0) {
862                     wpa_printf(MSG_DEBUG, "%s: interface %s does not exist",
863                                  __func__, params->ifname);
864                     goto bad;
865           }
866 
867           drv->hapd = hapd;
868           drv->global = params->global_priv;
869           os_strlcpy(drv->ifname, params->ifname, sizeof(drv->ifname));
870 
871           drv->sock_xmit = l2_packet_init(drv->ifname, NULL, ETH_P_EAPOL,
872                                                   handle_read, drv, 0);
873           if (drv->sock_xmit == NULL)
874                     goto bad;
875           if (l2_packet_get_own_addr(drv->sock_xmit, params->own_addr))
876                     goto bad;
877 
878           /* mark down during setup */
879           if (bsd_ctrl_iface(drv, 0) < 0)
880                     goto bad;
881 
882           if (bsd_set_mediaopt(drv, IFM_OMASK, IFM_IEEE80211_HOSTAP) < 0) {
883                     wpa_printf(MSG_ERROR, "%s: failed to set operation mode",
884                                  __func__);
885                     goto bad;
886           }
887 
888           dl_list_add(&drv->global->ifaces, &drv->list);
889 
890           return drv;
891 bad:
892           if (drv->sock_xmit != NULL)
893                     l2_packet_deinit(drv->sock_xmit);
894           os_free(drv);
895           return NULL;
896 }
897 
898 
899 static void
bsd_deinit(void * priv)900 bsd_deinit(void *priv)
901 {
902           struct bsd_driver_data *drv = priv;
903 
904           if (drv->ifindex != 0)
905                     bsd_ctrl_iface(drv, 0);
906           if (drv->sock_xmit != NULL)
907                     l2_packet_deinit(drv->sock_xmit);
908           os_free(drv);
909 }
910 
911 
912 static int
bsd_commit(void * priv)913 bsd_commit(void *priv)
914 {
915           return bsd_ctrl_iface(priv, 1);
916 }
917 
918 
919 static int
bsd_set_sta_authorized(void * priv,const u8 * addr,unsigned int total_flags,unsigned int flags_or,unsigned int flags_and)920 bsd_set_sta_authorized(void *priv, const u8 *addr,
921                            unsigned int total_flags, unsigned int flags_or,
922                            unsigned int flags_and)
923 {
924           int authorized = -1;
925 
926           /* For now, only support setting Authorized flag */
927           if (flags_or & WPA_STA_AUTHORIZED)
928                     authorized = 1;
929           if (!(flags_and & WPA_STA_AUTHORIZED))
930                     authorized = 0;
931 
932           if (authorized < 0)
933                     return 0;
934 
935           return bsd_send_mlme_param(priv, authorized ?
936                                            IEEE80211_MLME_AUTHORIZE :
937                                            IEEE80211_MLME_UNAUTHORIZE, 0, addr);
938 }
939 #else /* HOSTAPD */
940 
941 static int
get80211param(struct bsd_driver_data * drv,int op)942 get80211param(struct bsd_driver_data *drv, int op)
943 {
944           struct ieee80211req ireq;
945 
946           if (bsd_get80211(drv, &ireq, op, NULL, 0) < 0)
947                     return -1;
948           return ireq.i_val;
949 }
950 
951 static int
wpa_driver_bsd_get_bssid(void * priv,u8 * bssid)952 wpa_driver_bsd_get_bssid(void *priv, u8 *bssid)
953 {
954           struct bsd_driver_data *drv = priv;
955 #ifdef SIOCG80211BSSID
956           struct ieee80211_bssid bs;
957 
958           os_strlcpy(bs.i_name, drv->ifname, sizeof(bs.i_name));
959           if (ioctl(drv->global->sock, SIOCG80211BSSID, &bs) < 0)
960                     return -1;
961           os_memcpy(bssid, bs.i_bssid, sizeof(bs.i_bssid));
962           return 0;
963 #else
964           return get80211var(drv, IEEE80211_IOC_BSSID,
965                     bssid, IEEE80211_ADDR_LEN) < 0 ? -1 : 0;
966 #endif
967 }
968 
969 static int
wpa_driver_bsd_get_ssid(void * priv,u8 * ssid)970 wpa_driver_bsd_get_ssid(void *priv, u8 *ssid)
971 {
972           struct bsd_driver_data *drv = priv;
973           return bsd_get_ssid(drv, ssid, 0);
974 }
975 
976 static int
wpa_driver_bsd_set_wpa_ie(struct bsd_driver_data * drv,const u8 * wpa_ie,size_t wpa_ie_len)977 wpa_driver_bsd_set_wpa_ie(struct bsd_driver_data *drv, const u8 *wpa_ie,
978                                 size_t wpa_ie_len)
979 {
980 #ifdef IEEE80211_IOC_APPIE
981           return bsd_set_opt_ie(drv, wpa_ie, wpa_ie_len);
982 #else /* IEEE80211_IOC_APPIE */
983           return set80211var(drv, IEEE80211_IOC_OPTIE, wpa_ie, wpa_ie_len);
984 #endif /* IEEE80211_IOC_APPIE */
985 }
986 
987 static int
wpa_driver_bsd_set_wpa_internal(void * priv,int wpa,int privacy)988 wpa_driver_bsd_set_wpa_internal(void *priv, int wpa, int privacy)
989 {
990           int ret = 0;
991 
992           wpa_printf(MSG_DEBUG, "%s: wpa=%d privacy=%d",
993                     __func__, wpa, privacy);
994 
995           if (!wpa && wpa_driver_bsd_set_wpa_ie(priv, NULL, 0) < 0)
996                     ret = -1;
997           if (set80211param(priv, IEEE80211_IOC_PRIVACY, privacy) < 0)
998                     ret = -1;
999           if (set80211param(priv, IEEE80211_IOC_WPA, wpa) < 0)
1000                     ret = -1;
1001 
1002           return ret;
1003 }
1004 
1005 static int
wpa_driver_bsd_set_wpa(void * priv,int enabled)1006 wpa_driver_bsd_set_wpa(void *priv, int enabled)
1007 {
1008           wpa_printf(MSG_DEBUG, "%s: enabled=%d", __func__, enabled);
1009 
1010           return wpa_driver_bsd_set_wpa_internal(priv, enabled ? 3 : 0, enabled);
1011 }
1012 
1013 static int
wpa_driver_bsd_set_countermeasures(void * priv,int enabled)1014 wpa_driver_bsd_set_countermeasures(void *priv, int enabled)
1015 {
1016           wpa_printf(MSG_DEBUG, "%s: enabled=%d", __func__, enabled);
1017           return set80211param(priv, IEEE80211_IOC_COUNTERMEASURES, enabled);
1018 }
1019 
1020 
1021 static int
wpa_driver_bsd_set_drop_unencrypted(void * priv,int enabled)1022 wpa_driver_bsd_set_drop_unencrypted(void *priv, int enabled)
1023 {
1024           wpa_printf(MSG_DEBUG, "%s: enabled=%d", __func__, enabled);
1025           return set80211param(priv, IEEE80211_IOC_DROPUNENCRYPTED, enabled);
1026 }
1027 
1028 static int
wpa_driver_bsd_deauthenticate(void * priv,const u8 * addr,u16 reason_code)1029 wpa_driver_bsd_deauthenticate(void *priv, const u8 *addr, u16 reason_code)
1030 {
1031           return bsd_send_mlme_param(priv, IEEE80211_MLME_DEAUTH, reason_code,
1032                                            addr);
1033 }
1034 
1035 static int
wpa_driver_bsd_set_auth_alg(void * priv,int auth_alg)1036 wpa_driver_bsd_set_auth_alg(void *priv, int auth_alg)
1037 {
1038           int authmode;
1039 
1040           if ((auth_alg & WPA_AUTH_ALG_OPEN) &&
1041               (auth_alg & WPA_AUTH_ALG_SHARED))
1042                     authmode = IEEE80211_AUTH_AUTO;
1043           else if (auth_alg & WPA_AUTH_ALG_SHARED)
1044                     authmode = IEEE80211_AUTH_SHARED;
1045           else
1046                     authmode = IEEE80211_AUTH_OPEN;
1047 
1048           return set80211param(priv, IEEE80211_IOC_AUTHMODE, authmode);
1049 }
1050 
1051 static void
handle_read(void * ctx,const u8 * src_addr,const u8 * buf,size_t len)1052 handle_read(void *ctx, const u8 *src_addr, const u8 *buf, size_t len)
1053 {
1054           struct bsd_driver_data *drv = ctx;
1055 
1056           drv_event_eapol_rx(drv->ctx, src_addr, buf, len);
1057 }
1058 
1059 static int
wpa_driver_bsd_associate(void * priv,struct wpa_driver_associate_params * params)1060 wpa_driver_bsd_associate(void *priv, struct wpa_driver_associate_params *params)
1061 {
1062           struct bsd_driver_data *drv = priv;
1063           struct ieee80211req_mlme mlme;
1064           u32 mode;
1065           int privacy;
1066           int ret = 0;
1067 
1068           wpa_printf(MSG_DEBUG,
1069                     "%s: ssid '%.*s' wpa ie len %u pairwise %u group %u key mgmt %u"
1070                     , __func__
1071                        , (unsigned int) params->ssid_len, params->ssid
1072                     , (unsigned int) params->wpa_ie_len
1073                     , params->pairwise_suite
1074                     , params->group_suite
1075                     , params->key_mgmt_suite
1076           );
1077 
1078           switch (params->mode) {
1079           case IEEE80211_MODE_INFRA:
1080                     mode = 0 /* STA */;
1081                     break;
1082           case IEEE80211_MODE_IBSS:
1083                     mode = IFM_IEEE80211_IBSS;
1084                     break;
1085           case IEEE80211_MODE_AP:
1086                     mode = IFM_IEEE80211_HOSTAP;
1087                     break;
1088           default:
1089                     wpa_printf(MSG_ERROR, "%s: unknown operation mode", __func__);
1090                     return -1;
1091           }
1092           if (bsd_set_mediaopt(drv, IFM_OMASK, mode) < 0) {
1093                     wpa_printf(MSG_ERROR, "%s: failed to set operation mode",
1094                                  __func__);
1095                     return -1;
1096           }
1097 
1098           if (params->mode == IEEE80211_MODE_AP) {
1099                     drv->sock_xmit = l2_packet_init(drv->ifname, NULL, ETH_P_EAPOL,
1100                                                             handle_read, drv, 0);
1101                     if (drv->sock_xmit == NULL)
1102                               return -1;
1103                     drv->is_ap = 1;
1104                     return 0;
1105           }
1106 
1107           if (wpa_driver_bsd_set_drop_unencrypted(drv, params->drop_unencrypted)
1108               < 0)
1109                     ret = -1;
1110           if (wpa_driver_bsd_set_auth_alg(drv, params->auth_alg) < 0)
1111                     ret = -1;
1112           /* XXX error handling is wrong but unclear what to do... */
1113           if (wpa_driver_bsd_set_wpa_ie(drv, params->wpa_ie, params->wpa_ie_len) < 0)
1114                     return -1;
1115 
1116           privacy = !(params->pairwise_suite == WPA_CIPHER_NONE &&
1117               params->group_suite == WPA_CIPHER_NONE &&
1118               params->key_mgmt_suite == WPA_KEY_MGMT_NONE &&
1119               params->wpa_ie_len == 0);
1120           wpa_printf(MSG_DEBUG, "%s: set PRIVACY %u", __func__, privacy);
1121 
1122           if (set80211param(drv, IEEE80211_IOC_PRIVACY, privacy) < 0)
1123                     return -1;
1124 
1125           if (params->wpa_ie_len &&
1126               set80211param(drv, IEEE80211_IOC_WPA,
1127                                 params->wpa_ie[0] == WLAN_EID_RSN ? 2 : 1) < 0)
1128                     return -1;
1129 
1130           os_memset(&mlme, 0, sizeof(mlme));
1131           mlme.im_op = IEEE80211_MLME_ASSOC;
1132           if (params->ssid != NULL)
1133                     os_memcpy(mlme.im_ssid, params->ssid, params->ssid_len);
1134           mlme.im_ssid_len = params->ssid_len;
1135           if (params->bssid != NULL)
1136                     os_memcpy(mlme.im_macaddr, params->bssid, IEEE80211_ADDR_LEN);
1137           if (set80211var(drv, IEEE80211_IOC_MLME, &mlme, sizeof(mlme)) < 0)
1138                     return -1;
1139           return ret;
1140 }
1141 
1142 static int
wpa_driver_bsd_scan(void * priv,struct wpa_driver_scan_params * params)1143 wpa_driver_bsd_scan(void *priv, struct wpa_driver_scan_params *params)
1144 {
1145           struct bsd_driver_data *drv = priv;
1146 #ifdef IEEE80211_IOC_SCAN_MAX_SSID
1147           struct ieee80211_scan_req sr;
1148           int i;
1149 #endif /* IEEE80211_IOC_SCAN_MAX_SSID */
1150 
1151           if (bsd_set_mediaopt(drv, IFM_OMASK, 0 /* STA */) < 0) {
1152                     wpa_printf(MSG_ERROR, "%s: failed to set operation mode",
1153                                  __func__);
1154                     return -1;
1155           }
1156 
1157           if (set80211param(drv, IEEE80211_IOC_ROAMING,
1158                                 IEEE80211_ROAMING_MANUAL) < 0) {
1159                     wpa_printf(MSG_ERROR, "%s: failed to set "
1160                                  "wpa_supplicant-based roaming: %s", __func__,
1161                                  strerror(errno));
1162                     return -1;
1163           }
1164 
1165           if (wpa_driver_bsd_set_wpa(drv, 1) < 0) {
1166                     wpa_printf(MSG_ERROR, "%s: failed to set wpa: %s", __func__,
1167                                  strerror(errno));
1168                     return -1;
1169           }
1170 
1171           /* NB: interface must be marked UP to do a scan */
1172           if (bsd_ctrl_iface(drv, 1) < 0)
1173                     return -1;
1174 
1175 #ifdef IEEE80211_IOC_SCAN_MAX_SSID
1176           os_memset(&sr, 0, sizeof(sr));
1177           sr.sr_flags = IEEE80211_IOC_SCAN_ACTIVE | IEEE80211_IOC_SCAN_ONCE |
1178                     IEEE80211_IOC_SCAN_NOJOIN;
1179           sr.sr_duration = IEEE80211_IOC_SCAN_FOREVER;
1180           if (params->num_ssids > 0) {
1181                     sr.sr_nssid = params->num_ssids;
1182 #if 0
1183                     /* Boundary check is done by upper layer */
1184                     if (sr.sr_nssid > IEEE80211_IOC_SCAN_MAX_SSID)
1185                               sr.sr_nssid = IEEE80211_IOC_SCAN_MAX_SSID;
1186 #endif
1187 
1188                     /* NB: check scan cache first */
1189                     sr.sr_flags |= IEEE80211_IOC_SCAN_CHECK;
1190           }
1191           for (i = 0; i < sr.sr_nssid; i++) {
1192                     sr.sr_ssid[i].len = params->ssids[i].ssid_len;
1193                     os_memcpy(sr.sr_ssid[i].ssid, params->ssids[i].ssid,
1194                                 sr.sr_ssid[i].len);
1195           }
1196 
1197           /* NB: net80211 delivers a scan complete event so no need to poll */
1198           return set80211var(drv, IEEE80211_IOC_SCAN_REQ, &sr, sizeof(sr));
1199 #else /* IEEE80211_IOC_SCAN_MAX_SSID */
1200           /* set desired ssid before scan */
1201           if (bsd_set_ssid(drv, params->ssids[0].ssid,
1202                                params->ssids[0].ssid_len) < 0)
1203                     return -1;
1204 
1205           /* NB: net80211 delivers a scan complete event so no need to poll */
1206           return set80211param(drv, IEEE80211_IOC_SCAN_REQ, 0);
1207 #endif /* IEEE80211_IOC_SCAN_MAX_SSID */
1208 }
1209 
1210 static void
wpa_driver_bsd_event_receive(int sock,void * ctx,void * sock_ctx)1211 wpa_driver_bsd_event_receive(int sock, void *ctx, void *sock_ctx)
1212 {
1213           struct bsd_driver_global *global = sock_ctx;
1214           struct bsd_driver_data *drv;
1215           struct if_announcemsghdr *ifan;
1216           struct if_msghdr *ifm;
1217           struct rt_msghdr *rtm;
1218           union wpa_event_data event;
1219           struct ieee80211_michael_event *mic;
1220           struct ieee80211_leave_event *leave;
1221           struct ieee80211_join_event *join;
1222           int n;
1223 
1224           n = read(sock, global->event_buf, global->event_buf_len);
1225           if (n < 0) {
1226                     if (errno != EINTR && errno != EAGAIN)
1227                               wpa_printf(MSG_ERROR, "%s read() failed: %s",
1228                                            __func__, strerror(errno));
1229                     return;
1230           }
1231 
1232           rtm = (struct rt_msghdr *) global->event_buf;
1233           if (rtm->rtm_version != RTM_VERSION) {
1234                     wpa_printf(MSG_DEBUG, "Invalid routing message version=%d",
1235                                  rtm->rtm_version);
1236                     return;
1237           }
1238           os_memset(&event, 0, sizeof(event));
1239           switch (rtm->rtm_type) {
1240           case RTM_IFANNOUNCE:
1241                     ifan = (struct if_announcemsghdr *) rtm;
1242                     switch (ifan->ifan_what) {
1243                     case IFAN_DEPARTURE:
1244                               drv = bsd_get_drvindex(global, ifan->ifan_index);
1245                               if (drv)
1246                                         drv->if_removed = 1;
1247                               event.interface_status.ievent = EVENT_INTERFACE_REMOVED;
1248                               break;
1249                     case IFAN_ARRIVAL:
1250                               drv = bsd_get_drvname(global, ifan->ifan_name);
1251                               if (drv) {
1252                                         drv->ifindex = ifan->ifan_index;
1253                                         drv->if_removed = 0;
1254                               }
1255                               event.interface_status.ievent = EVENT_INTERFACE_ADDED;
1256                               break;
1257                     default:
1258                               wpa_printf(MSG_DEBUG, "RTM_IFANNOUNCE: unknown action");
1259                               return;
1260                     }
1261                     wpa_printf(MSG_DEBUG, "RTM_IFANNOUNCE: Interface '%s' %s",
1262                                  ifan->ifan_name,
1263                                  ifan->ifan_what == IFAN_DEPARTURE ?
1264                                         "removed" : "added");
1265                     os_strlcpy(event.interface_status.ifname, ifan->ifan_name,
1266                                  sizeof(event.interface_status.ifname));
1267                     if (drv) {
1268                               wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_STATUS,
1269                                                        &event);
1270                               /*
1271                                * Set ifindex to zero after sending the event as the
1272                                * event might query the driver to ensure a match.
1273                                */
1274                               if (ifan->ifan_what == IFAN_DEPARTURE)
1275                                         drv->ifindex = 0;
1276                     } else {
1277                               wpa_supplicant_event_global(global->ctx,
1278                                                                 EVENT_INTERFACE_STATUS,
1279                                                                 &event);
1280                     }
1281                     break;
1282           case RTM_IEEE80211:
1283                     ifan = (struct if_announcemsghdr *) rtm;
1284                     drv = bsd_get_drvindex(global, ifan->ifan_index);
1285                     if (drv == NULL)
1286                               return;
1287                     switch (ifan->ifan_what) {
1288                     case RTM_IEEE80211_ASSOC:
1289                     case RTM_IEEE80211_REASSOC:
1290                               if (drv->is_ap)
1291                                         break;
1292                               wpa_supplicant_event(drv->ctx, EVENT_ASSOC, NULL);
1293                               break;
1294                     case RTM_IEEE80211_DISASSOC:
1295                               if (drv->is_ap)
1296                                         break;
1297                               wpa_supplicant_event(drv->ctx, EVENT_DISASSOC, NULL);
1298                               break;
1299                     case RTM_IEEE80211_SCAN:
1300                               if (drv->is_ap)
1301                                         break;
1302                               wpa_supplicant_event(drv->ctx, EVENT_SCAN_RESULTS,
1303                                                        NULL);
1304                               break;
1305                     case RTM_IEEE80211_LEAVE:
1306                               leave = (struct ieee80211_leave_event *) &ifan[1];
1307                               drv_event_disassoc(drv->ctx, leave->iev_addr);
1308                               break;
1309                     case RTM_IEEE80211_JOIN:
1310 #ifdef RTM_IEEE80211_REJOIN
1311                     case RTM_IEEE80211_REJOIN:
1312 #endif
1313                               join = (struct ieee80211_join_event *) &ifan[1];
1314                               bsd_new_sta(drv, drv->ctx, join->iev_addr);
1315                               break;
1316                     case RTM_IEEE80211_REPLAY:
1317                               /* ignore */
1318                               break;
1319                     case RTM_IEEE80211_MICHAEL:
1320                               mic = (struct ieee80211_michael_event *) &ifan[1];
1321                               wpa_printf(MSG_DEBUG,
1322                                         "Michael MIC failure wireless event: "
1323                                         "keyix=%u src_addr=" MACSTR, mic->iev_keyix,
1324                                         MAC2STR(mic->iev_src));
1325 
1326                               os_memset(&event, 0, sizeof(event));
1327                               event.michael_mic_failure.unicast =
1328                                         !IEEE80211_IS_MULTICAST(mic->iev_dst);
1329                               wpa_supplicant_event(drv->ctx,
1330                                                        EVENT_MICHAEL_MIC_FAILURE, &event);
1331                               break;
1332                     }
1333                     break;
1334           case RTM_IFINFO:
1335                     ifm = (struct if_msghdr *) rtm;
1336                     drv = bsd_get_drvindex(global, ifm->ifm_index);
1337                     if (drv == NULL)
1338                               return;
1339                     if ((ifm->ifm_flags & IFF_UP) == 0 &&
1340                         (drv->flags & IFF_UP) != 0) {
1341                               wpa_printf(MSG_DEBUG, "RTM_IFINFO: Interface '%s' DOWN",
1342                                            drv->ifname);
1343                               wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_DISABLED,
1344                                                        NULL);
1345                     } else if ((ifm->ifm_flags & IFF_UP) != 0 &&
1346                         (drv->flags & IFF_UP) == 0) {
1347                               wpa_printf(MSG_DEBUG, "RTM_IFINFO: Interface '%s' UP",
1348                                            drv->ifname);
1349                               wpa_supplicant_event(drv->ctx, EVENT_INTERFACE_ENABLED,
1350                                                        NULL);
1351                     }
1352                     drv->flags = ifm->ifm_flags;
1353                     break;
1354           }
1355 }
1356 
1357 static void
wpa_driver_bsd_add_scan_entry(struct wpa_scan_results * res,struct ieee80211req_scan_result * sr)1358 wpa_driver_bsd_add_scan_entry(struct wpa_scan_results *res,
1359                                     struct ieee80211req_scan_result *sr)
1360 {
1361           struct wpa_scan_res *result, **tmp;
1362           size_t extra_len;
1363           u8 *pos;
1364 
1365           extra_len = 2 + sr->isr_ssid_len;
1366           extra_len += 2 + sr->isr_nrates;
1367           extra_len += 3; /* ERP IE */
1368           extra_len += sr->isr_ie_len;
1369 
1370           result = os_zalloc(sizeof(*result) + extra_len);
1371           if (result == NULL)
1372                     return;
1373           os_memcpy(result->bssid, sr->isr_bssid, ETH_ALEN);
1374           result->freq = sr->isr_freq;
1375           result->beacon_int = sr->isr_intval;
1376           result->caps = sr->isr_capinfo;
1377           result->qual = sr->isr_rssi;
1378           result->noise = sr->isr_noise;
1379 
1380 #ifdef __FreeBSD__
1381           /*
1382            * the rssi value reported by the kernel is in 0.5dB steps relative to
1383            * the reported noise floor. see ieee80211_node.h for details.
1384            */
1385           result->level = sr->isr_rssi / 2 + sr->isr_noise;
1386 #else
1387           result->level = sr->isr_rssi;
1388 #endif
1389 
1390           pos = (u8 *)(result + 1);
1391 
1392           *pos++ = WLAN_EID_SSID;
1393           *pos++ = sr->isr_ssid_len;
1394           os_memcpy(pos, sr + 1, sr->isr_ssid_len);
1395           pos += sr->isr_ssid_len;
1396 
1397           /*
1398            * Deal all rates as supported rate.
1399            * Because net80211 doesn't report extended supported rate or not.
1400            */
1401           *pos++ = WLAN_EID_SUPP_RATES;
1402           *pos++ = sr->isr_nrates;
1403           os_memcpy(pos, sr->isr_rates, sr->isr_nrates);
1404           pos += sr->isr_nrates;
1405 
1406           *pos++ = WLAN_EID_ERP_INFO;
1407           *pos++ = 1;
1408           *pos++ = sr->isr_erp;
1409 
1410 #if defined(__DragonFly__) || defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
1411           os_memcpy(pos, (u8 *)(sr + 1) + sr->isr_ssid_len + sr->isr_meshid_len,
1412                       sr->isr_ie_len);
1413 #else
1414           os_memcpy(pos, (u8 *)(sr + 1) + sr->isr_ssid_len, sr->isr_ie_len);
1415 #endif
1416           pos += sr->isr_ie_len;
1417 
1418           result->ie_len = pos - (u8 *)(result + 1);
1419 
1420           tmp = os_realloc_array(res->res, res->num + 1,
1421                                      sizeof(struct wpa_scan_res *));
1422           if (tmp == NULL) {
1423                     os_free(result);
1424                     return;
1425           }
1426           tmp[res->num++] = result;
1427           res->res = tmp;
1428 }
1429 
1430 struct wpa_scan_results *
wpa_driver_bsd_get_scan_results2(void * priv)1431 wpa_driver_bsd_get_scan_results2(void *priv)
1432 {
1433           struct ieee80211req_scan_result *sr;
1434           struct wpa_scan_results *res;
1435           int len, rest;
1436           uint8_t buf[24*1024], *pos;
1437 
1438           len = get80211var(priv, IEEE80211_IOC_SCAN_RESULTS, buf, 24*1024);
1439           if (len < 0)
1440                     return NULL;
1441 
1442           res = os_zalloc(sizeof(*res));
1443           if (res == NULL)
1444                     return NULL;
1445 
1446           pos = buf;
1447           rest = len;
1448           while (rest >= sizeof(struct ieee80211req_scan_result)) {
1449                     sr = (struct ieee80211req_scan_result *)pos;
1450                     wpa_driver_bsd_add_scan_entry(res, sr);
1451                     pos += sr->isr_len;
1452                     rest -= sr->isr_len;
1453           }
1454 
1455           wpa_printf(MSG_DEBUG, "Received %d bytes of scan results (%lu BSSes)",
1456                        len, (unsigned long)res->num);
1457 
1458           return res;
1459 }
1460 
wpa_driver_bsd_capa(struct bsd_driver_data * drv)1461 static int wpa_driver_bsd_capa(struct bsd_driver_data *drv)
1462 {
1463 #ifdef IEEE80211_IOC_DEVCAPS
1464 /* kernel definitions copied from net80211/ieee80211_var.h */
1465 #define IEEE80211_CIPHER_WEP            0
1466 #define IEEE80211_CIPHER_TKIP           1
1467 #define IEEE80211_CIPHER_AES_CCM        3
1468 #define IEEE80211_CRYPTO_WEP            (1<<IEEE80211_CIPHER_WEP)
1469 #define IEEE80211_CRYPTO_TKIP           (1<<IEEE80211_CIPHER_TKIP)
1470 #define IEEE80211_CRYPTO_AES_CCM        (1<<IEEE80211_CIPHER_AES_CCM)
1471 #define IEEE80211_C_HOSTAP      0x00000400      /* CAPABILITY: HOSTAP avail */
1472 #define IEEE80211_C_WPA1        0x00800000      /* CAPABILITY: WPA1 avail */
1473 #define IEEE80211_C_WPA2        0x01000000      /* CAPABILITY: WPA2 avail */
1474           struct ieee80211_devcaps_req devcaps;
1475 
1476           if (get80211var(drv, IEEE80211_IOC_DEVCAPS, &devcaps,
1477                               sizeof(devcaps)) < 0) {
1478                     wpa_printf(MSG_ERROR, "failed to IEEE80211_IOC_DEVCAPS: %s",
1479                                  strerror(errno));
1480                     return -1;
1481           }
1482 
1483           wpa_printf(MSG_DEBUG, "%s: drivercaps=0x%08x,cryptocaps=0x%08x",
1484                        __func__, devcaps.dc_drivercaps, devcaps.dc_cryptocaps);
1485 
1486           if (devcaps.dc_drivercaps & IEEE80211_C_WPA1)
1487                     drv->capa.key_mgmt = WPA_DRIVER_CAPA_KEY_MGMT_WPA |
1488                               WPA_DRIVER_CAPA_KEY_MGMT_WPA_PSK;
1489           if (devcaps.dc_drivercaps & IEEE80211_C_WPA2)
1490                     drv->capa.key_mgmt = WPA_DRIVER_CAPA_KEY_MGMT_WPA2 |
1491                               WPA_DRIVER_CAPA_KEY_MGMT_WPA2_PSK;
1492 
1493           if (devcaps.dc_cryptocaps & IEEE80211_CRYPTO_WEP)
1494                     drv->capa.enc |= WPA_DRIVER_CAPA_ENC_WEP40 |
1495                               WPA_DRIVER_CAPA_ENC_WEP104;
1496           if (devcaps.dc_cryptocaps & IEEE80211_CRYPTO_TKIP)
1497                     drv->capa.enc |= WPA_DRIVER_CAPA_ENC_TKIP;
1498           if (devcaps.dc_cryptocaps & IEEE80211_CRYPTO_AES_CCM)
1499                     drv->capa.enc |= WPA_DRIVER_CAPA_ENC_CCMP;
1500 
1501           if (devcaps.dc_drivercaps & IEEE80211_C_HOSTAP)
1502                     drv->capa.flags |= WPA_DRIVER_FLAGS_AP;
1503 #undef IEEE80211_CIPHER_WEP
1504 #undef IEEE80211_CIPHER_TKIP
1505 #undef IEEE80211_CIPHER_AES_CCM
1506 #undef IEEE80211_CRYPTO_WEP
1507 #undef IEEE80211_CRYPTO_TKIP
1508 #undef IEEE80211_CRYPTO_AES_CCM
1509 #undef IEEE80211_C_HOSTAP
1510 #undef IEEE80211_C_WPA1
1511 #undef IEEE80211_C_WPA2
1512 #else /* IEEE80211_IOC_DEVCAPS */
1513           /* For now, assume TKIP, CCMP, WPA, WPA2 are supported */
1514           drv->capa.key_mgmt = WPA_DRIVER_CAPA_KEY_MGMT_WPA |
1515                     WPA_DRIVER_CAPA_KEY_MGMT_WPA_PSK |
1516                     WPA_DRIVER_CAPA_KEY_MGMT_WPA2 |
1517                     WPA_DRIVER_CAPA_KEY_MGMT_WPA2_PSK;
1518           drv->capa.enc = WPA_DRIVER_CAPA_ENC_WEP40 |
1519                     WPA_DRIVER_CAPA_ENC_WEP104 |
1520                     WPA_DRIVER_CAPA_ENC_TKIP |
1521                     WPA_DRIVER_CAPA_ENC_CCMP;
1522           drv->capa.flags |= WPA_DRIVER_FLAGS_AP;
1523 #endif /* IEEE80211_IOC_DEVCAPS */
1524 #ifdef IEEE80211_IOC_SCAN_MAX_SSID
1525           drv->capa.max_scan_ssids = IEEE80211_IOC_SCAN_MAX_SSID;
1526 #else /* IEEE80211_IOC_SCAN_MAX_SSID */
1527           drv->capa.max_scan_ssids = 1;
1528 #endif /* IEEE80211_IOC_SCAN_MAX_SSID */
1529           drv->capa.auth = WPA_DRIVER_AUTH_OPEN |
1530                     WPA_DRIVER_AUTH_SHARED |
1531                     WPA_DRIVER_AUTH_LEAP;
1532           return 0;
1533 }
1534 
1535 static enum ieee80211_opmode
get80211opmode(struct bsd_driver_data * drv)1536 get80211opmode(struct bsd_driver_data *drv)
1537 {
1538           struct ifmediareq ifmr;
1539 
1540           (void) memset(&ifmr, 0, sizeof(ifmr));
1541           (void) os_strlcpy(ifmr.ifm_name, drv->ifname, sizeof(ifmr.ifm_name));
1542 
1543           if (ioctl(drv->global->sock, SIOCGIFMEDIA, (caddr_t)&ifmr) >= 0) {
1544                     if (ifmr.ifm_current & IFM_IEEE80211_ADHOC) {
1545                               if (ifmr.ifm_current & IFM_FLAG0)
1546                                         return IEEE80211_M_AHDEMO;
1547                               else
1548                                         return IEEE80211_M_IBSS;
1549                     }
1550                     if (ifmr.ifm_current & IFM_IEEE80211_HOSTAP)
1551                               return IEEE80211_M_HOSTAP;
1552                     if (ifmr.ifm_current & IFM_IEEE80211_MONITOR)
1553                               return IEEE80211_M_MONITOR;
1554 #ifdef IEEE80211_M_MBSS
1555                     if (ifmr.ifm_current & IFM_IEEE80211_MBSS)
1556                               return IEEE80211_M_MBSS;
1557 #endif /* IEEE80211_M_MBSS */
1558           }
1559           return IEEE80211_M_STA;
1560 }
1561 
1562 static void *
wpa_driver_bsd_init(void * ctx,const char * ifname,void * priv)1563 wpa_driver_bsd_init(void *ctx, const char *ifname, void *priv)
1564 {
1565 #define   GETPARAM(drv, param, v) \
1566           (((v) = get80211param(drv, param)) != -1)
1567           struct bsd_driver_data *drv;
1568 
1569           drv = os_zalloc(sizeof(*drv));
1570           if (drv == NULL)
1571                     return NULL;
1572 
1573           /*
1574            * NB: We require the interface name be mappable to an index.
1575            *     This implies we do not support having wpa_supplicant
1576            *     wait for an interface to appear.  This seems ok; that
1577            *     doesn't belong here; it's really the job of devd.
1578            */
1579           drv->ifindex = if_nametoindex(ifname);
1580           if (drv->ifindex == 0) {
1581                     wpa_printf(MSG_DEBUG, "%s: interface %s does not exist",
1582                                  __func__, ifname);
1583                     goto fail;
1584           }
1585 
1586           drv->ctx = ctx;
1587           drv->global = priv;
1588           os_strlcpy(drv->ifname, ifname, sizeof(drv->ifname));
1589 
1590           if (!GETPARAM(drv, IEEE80211_IOC_ROAMING, drv->prev_roaming)) {
1591                     wpa_printf(MSG_DEBUG, "%s: failed to get roaming state: %s",
1592                               __func__, strerror(errno));
1593                     goto fail;
1594           }
1595           if (!GETPARAM(drv, IEEE80211_IOC_PRIVACY, drv->prev_privacy)) {
1596                     wpa_printf(MSG_DEBUG, "%s: failed to get privacy state: %s",
1597                               __func__, strerror(errno));
1598                     goto fail;
1599           }
1600           if (!GETPARAM(drv, IEEE80211_IOC_WPA, drv->prev_wpa)) {
1601                     wpa_printf(MSG_DEBUG, "%s: failed to get wpa state: %s",
1602                               __func__, strerror(errno));
1603                     goto fail;
1604           }
1605 
1606           if (wpa_driver_bsd_capa(drv))
1607                     goto fail;
1608 
1609           /* Down interface during setup. */
1610           if (bsd_ctrl_iface(drv, 0) < 0)
1611                     goto fail;
1612 
1613           drv->opmode = get80211opmode(drv);
1614           dl_list_add(&drv->global->ifaces, &drv->list);
1615 
1616           return drv;
1617 fail:
1618           os_free(drv);
1619           return NULL;
1620 #undef GETPARAM
1621 }
1622 
1623 static void
wpa_driver_bsd_deinit(void * priv)1624 wpa_driver_bsd_deinit(void *priv)
1625 {
1626           struct bsd_driver_data *drv = priv;
1627 
1628           if (drv->ifindex != 0 && !drv->if_removed) {
1629                     wpa_driver_bsd_set_wpa(drv, 0);
1630 
1631                     /* NB: mark interface down */
1632                     bsd_ctrl_iface(drv, 0);
1633 
1634                     wpa_driver_bsd_set_wpa_internal(drv, drv->prev_wpa,
1635                                                             drv->prev_privacy);
1636 
1637                     if (set80211param(drv, IEEE80211_IOC_ROAMING, drv->prev_roaming)
1638                         < 0)
1639                               wpa_printf(MSG_DEBUG,
1640                                            "%s: failed to restore roaming state",
1641                                            __func__);
1642           }
1643 
1644           if (drv->sock_xmit != NULL)
1645                     l2_packet_deinit(drv->sock_xmit);
1646           dl_list_del(&drv->list);
1647           os_free(drv);
1648 }
1649 
1650 static int
wpa_driver_bsd_get_capa(void * priv,struct wpa_driver_capa * capa)1651 wpa_driver_bsd_get_capa(void *priv, struct wpa_driver_capa *capa)
1652 {
1653           struct bsd_driver_data *drv = priv;
1654 
1655           os_memcpy(capa, &drv->capa, sizeof(*capa));
1656           return 0;
1657 }
1658 #endif /* HOSTAPD */
1659 
1660 static void *
bsd_global_init(void * ctx)1661 bsd_global_init(void *ctx)
1662 {
1663           struct bsd_driver_global *global;
1664 
1665           global = os_zalloc(sizeof(*global));
1666           if (global == NULL)
1667                     return NULL;
1668 
1669           global->ctx = ctx;
1670           dl_list_init(&global->ifaces);
1671 
1672           global->sock = socket(PF_INET, SOCK_DGRAM, 0);
1673           if (global->sock < 0) {
1674                     wpa_printf(MSG_ERROR, "socket[PF_INET,SOCK_DGRAM]: %s",
1675                                  strerror(errno));
1676                     goto fail1;
1677           }
1678 
1679           global->route = socket(PF_ROUTE, SOCK_RAW, 0);
1680           if (global->route < 0) {
1681                     wpa_printf(MSG_ERROR, "socket[PF_ROUTE,SOCK_RAW]: %s",
1682                                  strerror(errno));
1683                     goto fail;
1684           }
1685 
1686           global->event_buf_len = rtbuf_len();
1687           global->event_buf = os_malloc(global->event_buf_len);
1688           if (global->event_buf == NULL) {
1689                     wpa_printf(MSG_ERROR, "%s: os_malloc() failed", __func__);
1690                     goto fail;
1691           }
1692 
1693 #ifdef HOSTAPD
1694           eloop_register_read_sock(global->route, bsd_wireless_event_receive,
1695                                          NULL, global);
1696 
1697 #else /* HOSTAPD */
1698           eloop_register_read_sock(global->route, wpa_driver_bsd_event_receive,
1699                                          NULL, global);
1700 #endif /* HOSTAPD */
1701 
1702           return global;
1703 
1704 fail:
1705           close(global->sock);
1706 fail1:
1707           os_free(global);
1708           return NULL;
1709 }
1710 
1711 static void
bsd_global_deinit(void * priv)1712 bsd_global_deinit(void *priv)
1713 {
1714           struct bsd_driver_global *global = priv;
1715 
1716           eloop_unregister_read_sock(global->route);
1717           (void) close(global->route);
1718           (void) close(global->sock);
1719           os_free(global);
1720 }
1721 
1722 
1723 const struct wpa_driver_ops wpa_driver_bsd_ops = {
1724           .name                         = "bsd",
1725           .desc                         = "BSD 802.11 support",
1726           .global_init                  = bsd_global_init,
1727           .global_deinit                = bsd_global_deinit,
1728 #ifdef HOSTAPD
1729           .hapd_init                    = bsd_init,
1730           .hapd_deinit                  = bsd_deinit,
1731           .set_privacy                  = bsd_set_privacy,
1732           .get_seqnum                   = bsd_get_seqnum,
1733           .flush                        = bsd_flush,
1734           .read_sta_data                = bsd_read_sta_driver_data,
1735           .sta_disassoc                 = bsd_sta_disassoc,
1736           .sta_deauth                   = bsd_sta_deauth,
1737           .sta_set_flags                = bsd_set_sta_authorized,
1738           .commit                       = bsd_commit,
1739 #else /* HOSTAPD */
1740           .init2                        = wpa_driver_bsd_init,
1741           .deinit                       = wpa_driver_bsd_deinit,
1742           .get_bssid                    = wpa_driver_bsd_get_bssid,
1743           .get_ssid           = wpa_driver_bsd_get_ssid,
1744           .set_countermeasures          = wpa_driver_bsd_set_countermeasures,
1745           .scan2                        = wpa_driver_bsd_scan,
1746           .get_scan_results2  = wpa_driver_bsd_get_scan_results2,
1747           .deauthenticate               = wpa_driver_bsd_deauthenticate,
1748           .associate                    = wpa_driver_bsd_associate,
1749           .get_capa           = wpa_driver_bsd_get_capa,
1750 #endif /* HOSTAPD */
1751           .set_freq           = bsd_set_freq,
1752           .set_key            = bsd_set_key,
1753           .set_ieee8021x                = bsd_set_ieee8021x,
1754           .hapd_set_ssid                = bsd_set_ssid,
1755           .hapd_get_ssid                = bsd_get_ssid,
1756           .hapd_send_eapol    = bsd_send_eapol,
1757           .set_generic_elem   = bsd_set_opt_ie,
1758 };
1759