1/*
2 * Wired Ethernet driver interface
3 * Copyright (c) 2005-2009, Jouni Malinen <j@w1.fi>
4 * Copyright (c) 2004, Gunter Burchardt <tira@isx.de>
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 <net/if.h>
13#ifdef __linux__
14#include <netpacket/packet.h>
15#include <net/if_arp.h>
16#include <net/if.h>
17#endif /* __linux__ */
18#if defined(__FreeBSD__) || defined(__DragonFly__) || defined(__FreeBSD_kernel__)
19#include <net/if_dl.h>
20#include <net/if_media.h>
21#endif /* defined(__FreeBSD__) || defined(__DragonFly__) || defined(__FreeBSD_kernel__) */
22#ifdef __sun__
23#include <sys/sockio.h>
24#endif /* __sun__ */
25
26#include "common.h"
27#include "eloop.h"
28#include "driver.h"
29
30#ifdef _MSC_VER
31#pragma pack(push, 1)
32#endif /* _MSC_VER */
33
34struct ieee8023_hdr {
35 u8 dest[6];
36 u8 src[6];
37 u16 ethertype;
38} STRUCT_PACKED;
39
40#ifdef _MSC_VER
41#pragma pack(pop)
42#endif /* _MSC_VER */
43
44static const u8 pae_group_addr[ETH_ALEN] =
45{ 0x01, 0x80, 0xc2, 0x00, 0x00, 0x03 };
46
47
48struct wpa_driver_wired_data {
49 char ifname[IFNAMSIZ + 1];
50 void *ctx;
51
52 int sock; /* raw packet socket for driver access */
53 int dhcp_sock; /* socket for dhcp packets */
54 int use_pae_group_addr;
55
56 int pf_sock;
57 int membership, multi, iff_allmulti, iff_up;
58};
59
60
61/* TODO: detecting new devices should eventually be changed from using DHCP
62 * snooping to trigger on any packet from a new layer 2 MAC address, e.g.,
63 * based on ebtables, etc. */
64
65struct dhcp_message {
66 u_int8_t op;
67 u_int8_t htype;
68 u_int8_t hlen;
69 u_int8_t hops;
70 u_int32_t xid;
71 u_int16_t secs;
72 u_int16_t flags;
73 u_int32_t ciaddr;
74 u_int32_t yiaddr;
75 u_int32_t siaddr;
76 u_int32_t giaddr;
77 u_int8_t chaddr[16];
78 u_int8_t sname[64];
79 u_int8_t file[128];
80 u_int32_t cookie;
81 u_int8_t options[308]; /* 312 - cookie */
82};
83
84
85static int wired_multicast_membership(int sock, int ifindex,
86 const u8 *addr, int add)
87{
88#ifdef __linux__
89 struct packet_mreq mreq;
90
91 if (sock < 0)
92 return -1;
93
94 os_memset(&mreq, 0, sizeof(mreq));
95 mreq.mr_ifindex = ifindex;
96 mreq.mr_type = PACKET_MR_MULTICAST;
97 mreq.mr_alen = ETH_ALEN;
98 os_memcpy(mreq.mr_address, addr, ETH_ALEN);
99
100 if (setsockopt(sock, SOL_PACKET,
101 add ? PACKET_ADD_MEMBERSHIP : PACKET_DROP_MEMBERSHIP,
102 &mreq, sizeof(mreq)) < 0) {
103 wpa_printf(MSG_ERROR, "setsockopt: %s", strerror(errno));
104 return -1;
105 }
106 return 0;
107#else /* __linux__ */
108 return -1;
109#endif /* __linux__ */
110}
111
112
113#ifdef __linux__
114static void handle_data(void *ctx, unsigned char *buf, size_t len)
115{
116#ifdef HOSTAPD
117 struct ieee8023_hdr *hdr;
118 u8 *pos, *sa;
119 size_t left;
120 union wpa_event_data event;
121
122 /* must contain at least ieee8023_hdr 6 byte source, 6 byte dest,
123 * 2 byte ethertype */
124 if (len < 14) {
125 wpa_printf(MSG_MSGDUMP, "handle_data: too short (%lu)",
126 (unsigned long) len);
127 return;
128 }
129
130 hdr = (struct ieee8023_hdr *) buf;
131
132 switch (ntohs(hdr->ethertype)) {
133 case ETH_P_PAE:
134 wpa_printf(MSG_MSGDUMP, "Received EAPOL packet");
135 sa = hdr->src;
136 os_memset(&event, 0, sizeof(event));
137 event.new_sta.addr = sa;
138 wpa_supplicant_event(ctx, EVENT_NEW_STA, &event);
139
140 pos = (u8 *) (hdr + 1);
141 left = len - sizeof(*hdr);
142 drv_event_eapol_rx(ctx, sa, pos, left);
143 break;
144
145 default:
146 wpa_printf(MSG_DEBUG, "Unknown ethertype 0x%04x in data frame",
147 ntohs(hdr->ethertype));
148 break;
149 }
150#endif /* HOSTAPD */
151}
152
153
154static void handle_read(int sock, void *eloop_ctx, void *sock_ctx)
155{
156 int len;
157 unsigned char buf[3000];
158
159 len = recv(sock, buf, sizeof(buf), 0);
160 if (len < 0) {
161 wpa_printf(MSG_ERROR, "recv: %s", strerror(errno));
162 return;
163 }
164
165 handle_data(eloop_ctx, buf, len);
166}
167
168
169static void handle_dhcp(int sock, void *eloop_ctx, void *sock_ctx)
170{
171 int len;
172 unsigned char buf[3000];
173 struct dhcp_message *msg;
174 u8 *mac_address;
175 union wpa_event_data event;
176
177 len = recv(sock, buf, sizeof(buf), 0);
178 if (len < 0) {
179 wpa_printf(MSG_ERROR, "recv: %s", strerror(errno));
180 return;
181 }
182
183 /* must contain at least dhcp_message->chaddr */
184 if (len < 44) {
185 wpa_printf(MSG_MSGDUMP, "handle_dhcp: too short (%d)", len);
186 return;
187 }
188
189 msg = (struct dhcp_message *) buf;
190 mac_address = (u8 *) &(msg->chaddr);
191
192 wpa_printf(MSG_MSGDUMP, "Got DHCP broadcast packet from " MACSTR,
193 MAC2STR(mac_address));
194
195 os_memset(&event, 0, sizeof(event));
196 event.new_sta.addr = mac_address;
197 wpa_supplicant_event(eloop_ctx, EVENT_NEW_STA, &event);
198}
199#endif /* __linux__ */
200
201
202static int wired_init_sockets(struct wpa_driver_wired_data *drv, u8 *own_addr)
203{
204#ifdef __linux__
205 struct ifreq ifr;
206 struct sockaddr_ll addr;
207 struct sockaddr_in addr2;
208 int n = 1;
209
210 drv->sock = socket(PF_PACKET, SOCK_RAW, htons(ETH_P_PAE));
211 if (drv->sock < 0) {
212 wpa_printf(MSG_ERROR, "socket[PF_PACKET,SOCK_RAW]: %s",
213 strerror(errno));
214 return -1;
215 }
216
217 if (eloop_register_read_sock(drv->sock, handle_read, drv->ctx, NULL)) {
218 wpa_printf(MSG_INFO, "Could not register read socket");
219 return -1;
220 }
221
222 os_memset(&ifr, 0, sizeof(ifr));
223 os_strlcpy(ifr.ifr_name, drv->ifname, sizeof(ifr.ifr_name));
224 if (ioctl(drv->sock, SIOCGIFINDEX, &ifr) != 0) {
225 wpa_printf(MSG_ERROR, "ioctl(SIOCGIFINDEX): %s",
226 strerror(errno));
227 return -1;
228 }
229
230 os_memset(&addr, 0, sizeof(addr));
231 addr.sll_family = AF_PACKET;
232 addr.sll_ifindex = ifr.ifr_ifindex;
233 wpa_printf(MSG_DEBUG, "Opening raw packet socket for ifindex %d",
234 addr.sll_ifindex);
235
236 if (bind(drv->sock, (struct sockaddr *) &addr, sizeof(addr)) < 0) {
237 wpa_printf(MSG_ERROR, "bind: %s", strerror(errno));
238 return -1;
239 }
240
241 /* filter multicast address */
242 if (wired_multicast_membership(drv->sock, ifr.ifr_ifindex,
243 pae_group_addr, 1) < 0) {
244 wpa_printf(MSG_ERROR, "wired: Failed to add multicast group "
245 "membership");
246 return -1;
247 }
248
249 os_memset(&ifr, 0, sizeof(ifr));
250 os_strlcpy(ifr.ifr_name, drv->ifname, sizeof(ifr.ifr_name));
251 if (ioctl(drv->sock, SIOCGIFHWADDR, &ifr) != 0) {
252 wpa_printf(MSG_ERROR, "ioctl(SIOCGIFHWADDR): %s",
253 strerror(errno));
254 return -1;
255 }
256
257 if (ifr.ifr_hwaddr.sa_family != ARPHRD_ETHER) {
258 wpa_printf(MSG_INFO, "Invalid HW-addr family 0x%04x",
259 ifr.ifr_hwaddr.sa_family);
260 return -1;
261 }
262 os_memcpy(own_addr, ifr.ifr_hwaddr.sa_data, ETH_ALEN);
263
264 /* setup dhcp listen socket for sta detection */
265 if ((drv->dhcp_sock = socket(PF_INET, SOCK_DGRAM, IPPROTO_UDP)) < 0) {
266 wpa_printf(MSG_ERROR, "socket call failed for dhcp: %s",
267 strerror(errno));
268 return -1;
269 }
270
271 if (eloop_register_read_sock(drv->dhcp_sock, handle_dhcp, drv->ctx,
272 NULL)) {
273 wpa_printf(MSG_INFO, "Could not register read socket");
274 return -1;
275 }
276
277 os_memset(&addr2, 0, sizeof(addr2));
278 addr2.sin_family = AF_INET;
279 addr2.sin_port = htons(67);
280 addr2.sin_addr.s_addr = INADDR_ANY;
281
282 if (setsockopt(drv->dhcp_sock, SOL_SOCKET, SO_REUSEADDR, (char *) &n,
283 sizeof(n)) == -1) {
284 wpa_printf(MSG_ERROR, "setsockopt[SOL_SOCKET,SO_REUSEADDR]: %s",
285 strerror(errno));
286 return -1;
287 }
288 if (setsockopt(drv->dhcp_sock, SOL_SOCKET, SO_BROADCAST, (char *) &n,
289 sizeof(n)) == -1) {
290 wpa_printf(MSG_ERROR, "setsockopt[SOL_SOCKET,SO_BROADCAST]: %s",
291 strerror(errno));
292 return -1;
293 }
294
295 os_memset(&ifr, 0, sizeof(ifr));
296 os_strlcpy(ifr.ifr_ifrn.ifrn_name, drv->ifname, IFNAMSIZ);
297 if (setsockopt(drv->dhcp_sock, SOL_SOCKET, SO_BINDTODEVICE,
298 (char *) &ifr, sizeof(ifr)) < 0) {
299 wpa_printf(MSG_ERROR,
300 "setsockopt[SOL_SOCKET,SO_BINDTODEVICE]: %s",
301 strerror(errno));
302 return -1;
303 }
304
305 if (bind(drv->dhcp_sock, (struct sockaddr *) &addr2,
306 sizeof(struct sockaddr)) == -1) {
307 wpa_printf(MSG_ERROR, "bind: %s", strerror(errno));
308 return -1;
309 }
310
311 return 0;
312#else /* __linux__ */
313 return -1;
314#endif /* __linux__ */
315}
316
317
318static int wired_send_eapol(void *priv, const u8 *addr,
319 const u8 *data, size_t data_len, int encrypt,
320 const u8 *own_addr, u32 flags)
321{
322 struct wpa_driver_wired_data *drv = priv;
323 struct ieee8023_hdr *hdr;
324 size_t len;
325 u8 *pos;
326 int res;
327
328 len = sizeof(*hdr) + data_len;
329 hdr = os_zalloc(len);
330 if (hdr == NULL) {
331 wpa_printf(MSG_INFO,
332 "malloc() failed for wired_send_eapol(len=%lu)",
333 (unsigned long) len);
334 return -1;
335 }
336
337 os_memcpy(hdr->dest, drv->use_pae_group_addr ? pae_group_addr : addr,
338 ETH_ALEN);
339 os_memcpy(hdr->src, own_addr, ETH_ALEN);
340 hdr->ethertype = htons(ETH_P_PAE);
341
342 pos = (u8 *) (hdr + 1);
343 os_memcpy(pos, data, data_len);
344
345 res = send(drv->sock, (u8 *) hdr, len, 0);
346 os_free(hdr);
347
348 if (res < 0) {
349 wpa_printf(MSG_ERROR,
350 "wired_send_eapol - packet len: %lu - failed: send: %s",
351 (unsigned long) len, strerror(errno));
352 }
353
354 return res;
355}
356
357
358static void * wired_driver_hapd_init(struct hostapd_data *hapd,
359 struct wpa_init_params *params)
360{
361 struct wpa_driver_wired_data *drv;
362
363 drv = os_zalloc(sizeof(struct wpa_driver_wired_data));
364 if (drv == NULL) {
365 wpa_printf(MSG_INFO,
366 "Could not allocate memory for wired driver data");
367 return NULL;
368 }
369
370 drv->ctx = hapd;
371 os_strlcpy(drv->ifname, params->ifname, sizeof(drv->ifname));
372 drv->use_pae_group_addr = params->use_pae_group_addr;
373
374 if (wired_init_sockets(drv, params->own_addr)) {
375 os_free(drv);
376 return NULL;
377 }
378
379 return drv;
380}
381
382
383static void wired_driver_hapd_deinit(void *priv)
384{
385 struct wpa_driver_wired_data *drv = priv;
386
387 if (drv->sock >= 0) {
388 eloop_unregister_read_sock(drv->sock);
389 close(drv->sock);
390 }
391
392 if (drv->dhcp_sock >= 0) {
393 eloop_unregister_read_sock(drv->dhcp_sock);
394 close(drv->dhcp_sock);
395 }
396
397 os_free(drv);
398}
399
400
401static int wpa_driver_wired_get_ssid(void *priv, u8 *ssid)
402{
403 ssid[0] = 0;
404 return 0;
405}
406
407
408static int wpa_driver_wired_get_bssid(void *priv, u8 *bssid)
409{
410 /* Report PAE group address as the "BSSID" for wired connection. */
411 os_memcpy(bssid, pae_group_addr, ETH_ALEN);
412 return 0;
413}
414
415
416static int wpa_driver_wired_get_capa(void *priv, struct wpa_driver_capa *capa)
417{
418 os_memset(capa, 0, sizeof(*capa));
419 capa->flags = WPA_DRIVER_FLAGS_WIRED;
420 return 0;
421}
422
423
424static int wpa_driver_wired_get_ifflags(const char *ifname, int *flags)
425{
426 struct ifreq ifr;
427 int s;
428
429 s = socket(PF_INET, SOCK_DGRAM, 0);
430 if (s < 0) {
431 wpa_printf(MSG_ERROR, "socket: %s", strerror(errno));
432 return -1;
433 }
434
435 os_memset(&ifr, 0, sizeof(ifr));
436 os_strlcpy(ifr.ifr_name, ifname, IFNAMSIZ);
437 if (ioctl(s, SIOCGIFFLAGS, (caddr_t) &ifr) < 0) {
438 wpa_printf(MSG_ERROR, "ioctl[SIOCGIFFLAGS]: %s",
439 strerror(errno));
440 close(s);
441 return -1;
442 }
443 close(s);
444 *flags = ifr.ifr_flags & 0xffff;
445 return 0;
446}
447
448
449static int wpa_driver_wired_set_ifflags(const char *ifname, int flags)
450{
451 struct ifreq ifr;
452 int s;
453
454 s = socket(PF_INET, SOCK_DGRAM, 0);
455 if (s < 0) {
456 wpa_printf(MSG_ERROR, "socket: %s", strerror(errno));
457 return -1;
458 }
459
460 os_memset(&ifr, 0, sizeof(ifr));
461 os_strlcpy(ifr.ifr_name, ifname, IFNAMSIZ);
462 ifr.ifr_flags = flags & 0xffff;
463 if (ioctl(s, SIOCSIFFLAGS, (caddr_t) &ifr) < 0) {
464 wpa_printf(MSG_ERROR, "ioctl[SIOCSIFFLAGS]: %s",
465 strerror(errno));
466 close(s);
467 return -1;
468 }
469 close(s);
470 return 0;
471}
472
473#if defined(__FreeBSD__) || defined(__DragonFly__) || defined(__FreeBSD_kernel__)
474static int wpa_driver_wired_get_ifstatus(const char *ifname, int *status)
475{
476 struct ifmediareq ifmr;
477 int s;
478
479 s = socket(PF_INET, SOCK_DGRAM, 0);
480 if (s < 0) {
481 wpa_printf(MSG_ERROR, "socket: %s", strerror(errno));
482 return -1;
483 }
484
485 os_memset(&ifmr, 0, sizeof(ifmr));
486 os_strlcpy(ifmr.ifm_name, ifname, IFNAMSIZ);
487 if (ioctl(s, SIOCGIFMEDIA, (caddr_t) &ifmr) < 0) {
488 wpa_printf(MSG_ERROR, "ioctl[SIOCGIFMEDIA]: %s",
489 strerror(errno));
490 close(s);
491 return -1;
492 }
493 close(s);
494 *status = (ifmr.ifm_status & (IFM_ACTIVE | IFM_AVALID)) ==
495 (IFM_ACTIVE | IFM_AVALID);
496
497 return 0;
498}
499#endif /* defined(__FreeBSD__) || defined(__DragonFly__) || defined(FreeBSD_kernel__) */
500
501
502static int wpa_driver_wired_multi(const char *ifname, const u8 *addr, int add)
503{
504 struct ifreq ifr;
505 int s;
506
507#ifdef __sun__
508 return -1;
509#endif /* __sun__ */
510
511 s = socket(PF_INET, SOCK_DGRAM, 0);
512 if (s < 0) {
513 wpa_printf(MSG_ERROR, "socket: %s", strerror(errno));
514 return -1;
515 }
516
517 os_memset(&ifr, 0, sizeof(ifr));
518 os_strlcpy(ifr.ifr_name, ifname, IFNAMSIZ);
519#ifdef __linux__
520 ifr.ifr_hwaddr.sa_family = AF_UNSPEC;
521 os_memcpy(ifr.ifr_hwaddr.sa_data, addr, ETH_ALEN);
522#endif /* __linux__ */
523#if defined(__FreeBSD__) || defined(__DragonFly__) || defined(__FreeBSD_kernel__)
524 {
525 struct sockaddr_dl *dlp;
526 dlp = (struct sockaddr_dl *) &ifr.ifr_addr;
527 dlp->sdl_len = sizeof(struct sockaddr_dl);
528 dlp->sdl_family = AF_LINK;
529 dlp->sdl_index = 0;
530 dlp->sdl_nlen = 0;
531 dlp->sdl_alen = ETH_ALEN;
532 dlp->sdl_slen = 0;
533 os_memcpy(LLADDR(dlp), addr, ETH_ALEN);
534 }
535#endif /* defined(__FreeBSD__) || defined(__DragonFly__) || defined(FreeBSD_kernel__) */
536#if defined(__NetBSD__) || defined(__OpenBSD__) || defined(__APPLE__)
537 {
538 struct sockaddr *sap;
539 sap = (struct sockaddr *) &ifr.ifr_addr;
540 sap->sa_len = sizeof(struct sockaddr);
541 sap->sa_family = AF_UNSPEC;
542 os_memcpy(sap->sa_data, addr, ETH_ALEN);
543 }
544#endif /* defined(__NetBSD__) || defined(__OpenBSD__) || defined(__APPLE__) */
545
546 if (ioctl(s, add ? SIOCADDMULTI : SIOCDELMULTI, (caddr_t) &ifr) < 0) {
547 wpa_printf(MSG_ERROR, "ioctl[SIOC{ADD/DEL}MULTI]: %s",
548 strerror(errno));
549 close(s);
550 return -1;
551 }
552 close(s);
553 return 0;
554}
555
556
557static void * wpa_driver_wired_init(void *ctx, const char *ifname)
558{
559 struct wpa_driver_wired_data *drv;
560 int flags, status;
561
562 drv = os_zalloc(sizeof(*drv));
563 if (drv == NULL)
564 return NULL;
565 os_strlcpy(drv->ifname, ifname, sizeof(drv->ifname));
566 drv->ctx = ctx;
567
568#ifdef __linux__
569 drv->pf_sock = socket(PF_PACKET, SOCK_DGRAM, 0);
570 if (drv->pf_sock < 0)
571 wpa_printf(MSG_ERROR, "socket(PF_PACKET): %s", strerror(errno));
572#else /* __linux__ */
573 drv->pf_sock = -1;
574#endif /* __linux__ */
575
576 if (wpa_driver_wired_get_ifflags(ifname, &flags) == 0 &&
577 !(flags & IFF_UP) &&
578 wpa_driver_wired_set_ifflags(ifname, flags | IFF_UP) == 0) {
579 drv->iff_up = 1;
580 }
581
582 if (wired_multicast_membership(drv->pf_sock,
583 if_nametoindex(drv->ifname),
584 pae_group_addr, 1) == 0) {
585 wpa_printf(MSG_DEBUG, "%s: Added multicast membership with "
586 "packet socket", __func__);
587 drv->membership = 1;
588 } else if (wpa_driver_wired_multi(ifname, pae_group_addr, 1) == 0) {
589 wpa_printf(MSG_DEBUG, "%s: Added multicast membership with "
590 "SIOCADDMULTI", __func__);
591 drv->multi = 1;
592 } else if (wpa_driver_wired_get_ifflags(ifname, &flags) < 0) {
593 wpa_printf(MSG_INFO, "%s: Could not get interface "
594 "flags", __func__);
595 os_free(drv);
596 return NULL;
597 } else if (flags & IFF_ALLMULTI) {
598 wpa_printf(MSG_DEBUG, "%s: Interface is already configured "
599 "for multicast", __func__);
600 } else if (wpa_driver_wired_set_ifflags(ifname,
601 flags | IFF_ALLMULTI) < 0) {
602 wpa_printf(MSG_INFO, "%s: Failed to enable allmulti",
603 __func__);
604 os_free(drv);
605 return NULL;
606 } else {
607 wpa_printf(MSG_DEBUG, "%s: Enabled allmulti mode",
608 __func__);
609 drv->iff_allmulti = 1;
610 }
611#if defined(__FreeBSD__) || defined(__DragonFly__) || defined(__FreeBSD_kernel__)
612 {
613 int status;
614 wpa_printf(MSG_DEBUG, "%s: waiting for link to become active",
615 __func__);
616 while (wpa_driver_wired_get_ifstatus(ifname, &status) == 0 &&
617 status == 0)
618 sleep(1);
619 }
620#endif /* defined(__FreeBSD__) || defined(__DragonFly__) || defined(FreeBSD_kernel__) */
621
622 return drv;
623}
624
625
626static void wpa_driver_wired_deinit(void *priv)
627{
628 struct wpa_driver_wired_data *drv = priv;
629 int flags;
630
631 if (drv->membership &&
632 wired_multicast_membership(drv->pf_sock,
633 if_nametoindex(drv->ifname),
634 pae_group_addr, 0) < 0) {
635 wpa_printf(MSG_DEBUG, "%s: Failed to remove PAE multicast "
636 "group (PACKET)", __func__);
637 }
638
639 if (drv->multi &&
640 wpa_driver_wired_multi(drv->ifname, pae_group_addr, 0) < 0) {
641 wpa_printf(MSG_DEBUG, "%s: Failed to remove PAE multicast "
642 "group (SIOCDELMULTI)", __func__);
643 }
644
645 if (drv->iff_allmulti &&
646 (wpa_driver_wired_get_ifflags(drv->ifname, &flags) < 0 ||
647 wpa_driver_wired_set_ifflags(drv->ifname,
648 flags & ~IFF_ALLMULTI) < 0)) {
649 wpa_printf(MSG_DEBUG, "%s: Failed to disable allmulti mode",
650 __func__);
651 }
652
653 if (drv->iff_up &&
654 wpa_driver_wired_get_ifflags(drv->ifname, &flags) == 0 &&
655 (flags & IFF_UP) &&
656 wpa_driver_wired_set_ifflags(drv->ifname, flags & ~IFF_UP) < 0) {
657 wpa_printf(MSG_DEBUG, "%s: Failed to set the interface down",
658 __func__);
659 }
660
661 if (drv->pf_sock != -1)
662 close(drv->pf_sock);
663
664 os_free(drv);
665}
666
667
668const struct wpa_driver_ops wpa_driver_wired_ops = {
669 .name = "wired",
670 .desc = "Wired Ethernet driver",
671 .hapd_init = wired_driver_hapd_init,
672 .hapd_deinit = wired_driver_hapd_deinit,
673 .hapd_send_eapol = wired_send_eapol,
674 .get_ssid = wpa_driver_wired_get_ssid,
675 .get_bssid = wpa_driver_wired_get_bssid,
676 .get_capa = wpa_driver_wired_get_capa,
677 .init = wpa_driver_wired_init,
678 .deinit = wpa_driver_wired_deinit,
679};
2 * Wired Ethernet driver interface
3 * Copyright (c) 2005-2009, Jouni Malinen <j@w1.fi>
4 * Copyright (c) 2004, Gunter Burchardt <tira@isx.de>
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 <net/if.h>
13#ifdef __linux__
14#include <netpacket/packet.h>
15#include <net/if_arp.h>
16#include <net/if.h>
17#endif /* __linux__ */
18#if defined(__FreeBSD__) || defined(__DragonFly__) || defined(__FreeBSD_kernel__)
19#include <net/if_dl.h>
20#include <net/if_media.h>
21#endif /* defined(__FreeBSD__) || defined(__DragonFly__) || defined(__FreeBSD_kernel__) */
22#ifdef __sun__
23#include <sys/sockio.h>
24#endif /* __sun__ */
25
26#include "common.h"
27#include "eloop.h"
28#include "driver.h"
29
30#ifdef _MSC_VER
31#pragma pack(push, 1)
32#endif /* _MSC_VER */
33
34struct ieee8023_hdr {
35 u8 dest[6];
36 u8 src[6];
37 u16 ethertype;
38} STRUCT_PACKED;
39
40#ifdef _MSC_VER
41#pragma pack(pop)
42#endif /* _MSC_VER */
43
44static const u8 pae_group_addr[ETH_ALEN] =
45{ 0x01, 0x80, 0xc2, 0x00, 0x00, 0x03 };
46
47
48struct wpa_driver_wired_data {
49 char ifname[IFNAMSIZ + 1];
50 void *ctx;
51
52 int sock; /* raw packet socket for driver access */
53 int dhcp_sock; /* socket for dhcp packets */
54 int use_pae_group_addr;
55
56 int pf_sock;
57 int membership, multi, iff_allmulti, iff_up;
58};
59
60
61/* TODO: detecting new devices should eventually be changed from using DHCP
62 * snooping to trigger on any packet from a new layer 2 MAC address, e.g.,
63 * based on ebtables, etc. */
64
65struct dhcp_message {
66 u_int8_t op;
67 u_int8_t htype;
68 u_int8_t hlen;
69 u_int8_t hops;
70 u_int32_t xid;
71 u_int16_t secs;
72 u_int16_t flags;
73 u_int32_t ciaddr;
74 u_int32_t yiaddr;
75 u_int32_t siaddr;
76 u_int32_t giaddr;
77 u_int8_t chaddr[16];
78 u_int8_t sname[64];
79 u_int8_t file[128];
80 u_int32_t cookie;
81 u_int8_t options[308]; /* 312 - cookie */
82};
83
84
85static int wired_multicast_membership(int sock, int ifindex,
86 const u8 *addr, int add)
87{
88#ifdef __linux__
89 struct packet_mreq mreq;
90
91 if (sock < 0)
92 return -1;
93
94 os_memset(&mreq, 0, sizeof(mreq));
95 mreq.mr_ifindex = ifindex;
96 mreq.mr_type = PACKET_MR_MULTICAST;
97 mreq.mr_alen = ETH_ALEN;
98 os_memcpy(mreq.mr_address, addr, ETH_ALEN);
99
100 if (setsockopt(sock, SOL_PACKET,
101 add ? PACKET_ADD_MEMBERSHIP : PACKET_DROP_MEMBERSHIP,
102 &mreq, sizeof(mreq)) < 0) {
103 wpa_printf(MSG_ERROR, "setsockopt: %s", strerror(errno));
104 return -1;
105 }
106 return 0;
107#else /* __linux__ */
108 return -1;
109#endif /* __linux__ */
110}
111
112
113#ifdef __linux__
114static void handle_data(void *ctx, unsigned char *buf, size_t len)
115{
116#ifdef HOSTAPD
117 struct ieee8023_hdr *hdr;
118 u8 *pos, *sa;
119 size_t left;
120 union wpa_event_data event;
121
122 /* must contain at least ieee8023_hdr 6 byte source, 6 byte dest,
123 * 2 byte ethertype */
124 if (len < 14) {
125 wpa_printf(MSG_MSGDUMP, "handle_data: too short (%lu)",
126 (unsigned long) len);
127 return;
128 }
129
130 hdr = (struct ieee8023_hdr *) buf;
131
132 switch (ntohs(hdr->ethertype)) {
133 case ETH_P_PAE:
134 wpa_printf(MSG_MSGDUMP, "Received EAPOL packet");
135 sa = hdr->src;
136 os_memset(&event, 0, sizeof(event));
137 event.new_sta.addr = sa;
138 wpa_supplicant_event(ctx, EVENT_NEW_STA, &event);
139
140 pos = (u8 *) (hdr + 1);
141 left = len - sizeof(*hdr);
142 drv_event_eapol_rx(ctx, sa, pos, left);
143 break;
144
145 default:
146 wpa_printf(MSG_DEBUG, "Unknown ethertype 0x%04x in data frame",
147 ntohs(hdr->ethertype));
148 break;
149 }
150#endif /* HOSTAPD */
151}
152
153
154static void handle_read(int sock, void *eloop_ctx, void *sock_ctx)
155{
156 int len;
157 unsigned char buf[3000];
158
159 len = recv(sock, buf, sizeof(buf), 0);
160 if (len < 0) {
161 wpa_printf(MSG_ERROR, "recv: %s", strerror(errno));
162 return;
163 }
164
165 handle_data(eloop_ctx, buf, len);
166}
167
168
169static void handle_dhcp(int sock, void *eloop_ctx, void *sock_ctx)
170{
171 int len;
172 unsigned char buf[3000];
173 struct dhcp_message *msg;
174 u8 *mac_address;
175 union wpa_event_data event;
176
177 len = recv(sock, buf, sizeof(buf), 0);
178 if (len < 0) {
179 wpa_printf(MSG_ERROR, "recv: %s", strerror(errno));
180 return;
181 }
182
183 /* must contain at least dhcp_message->chaddr */
184 if (len < 44) {
185 wpa_printf(MSG_MSGDUMP, "handle_dhcp: too short (%d)", len);
186 return;
187 }
188
189 msg = (struct dhcp_message *) buf;
190 mac_address = (u8 *) &(msg->chaddr);
191
192 wpa_printf(MSG_MSGDUMP, "Got DHCP broadcast packet from " MACSTR,
193 MAC2STR(mac_address));
194
195 os_memset(&event, 0, sizeof(event));
196 event.new_sta.addr = mac_address;
197 wpa_supplicant_event(eloop_ctx, EVENT_NEW_STA, &event);
198}
199#endif /* __linux__ */
200
201
202static int wired_init_sockets(struct wpa_driver_wired_data *drv, u8 *own_addr)
203{
204#ifdef __linux__
205 struct ifreq ifr;
206 struct sockaddr_ll addr;
207 struct sockaddr_in addr2;
208 int n = 1;
209
210 drv->sock = socket(PF_PACKET, SOCK_RAW, htons(ETH_P_PAE));
211 if (drv->sock < 0) {
212 wpa_printf(MSG_ERROR, "socket[PF_PACKET,SOCK_RAW]: %s",
213 strerror(errno));
214 return -1;
215 }
216
217 if (eloop_register_read_sock(drv->sock, handle_read, drv->ctx, NULL)) {
218 wpa_printf(MSG_INFO, "Could not register read socket");
219 return -1;
220 }
221
222 os_memset(&ifr, 0, sizeof(ifr));
223 os_strlcpy(ifr.ifr_name, drv->ifname, sizeof(ifr.ifr_name));
224 if (ioctl(drv->sock, SIOCGIFINDEX, &ifr) != 0) {
225 wpa_printf(MSG_ERROR, "ioctl(SIOCGIFINDEX): %s",
226 strerror(errno));
227 return -1;
228 }
229
230 os_memset(&addr, 0, sizeof(addr));
231 addr.sll_family = AF_PACKET;
232 addr.sll_ifindex = ifr.ifr_ifindex;
233 wpa_printf(MSG_DEBUG, "Opening raw packet socket for ifindex %d",
234 addr.sll_ifindex);
235
236 if (bind(drv->sock, (struct sockaddr *) &addr, sizeof(addr)) < 0) {
237 wpa_printf(MSG_ERROR, "bind: %s", strerror(errno));
238 return -1;
239 }
240
241 /* filter multicast address */
242 if (wired_multicast_membership(drv->sock, ifr.ifr_ifindex,
243 pae_group_addr, 1) < 0) {
244 wpa_printf(MSG_ERROR, "wired: Failed to add multicast group "
245 "membership");
246 return -1;
247 }
248
249 os_memset(&ifr, 0, sizeof(ifr));
250 os_strlcpy(ifr.ifr_name, drv->ifname, sizeof(ifr.ifr_name));
251 if (ioctl(drv->sock, SIOCGIFHWADDR, &ifr) != 0) {
252 wpa_printf(MSG_ERROR, "ioctl(SIOCGIFHWADDR): %s",
253 strerror(errno));
254 return -1;
255 }
256
257 if (ifr.ifr_hwaddr.sa_family != ARPHRD_ETHER) {
258 wpa_printf(MSG_INFO, "Invalid HW-addr family 0x%04x",
259 ifr.ifr_hwaddr.sa_family);
260 return -1;
261 }
262 os_memcpy(own_addr, ifr.ifr_hwaddr.sa_data, ETH_ALEN);
263
264 /* setup dhcp listen socket for sta detection */
265 if ((drv->dhcp_sock = socket(PF_INET, SOCK_DGRAM, IPPROTO_UDP)) < 0) {
266 wpa_printf(MSG_ERROR, "socket call failed for dhcp: %s",
267 strerror(errno));
268 return -1;
269 }
270
271 if (eloop_register_read_sock(drv->dhcp_sock, handle_dhcp, drv->ctx,
272 NULL)) {
273 wpa_printf(MSG_INFO, "Could not register read socket");
274 return -1;
275 }
276
277 os_memset(&addr2, 0, sizeof(addr2));
278 addr2.sin_family = AF_INET;
279 addr2.sin_port = htons(67);
280 addr2.sin_addr.s_addr = INADDR_ANY;
281
282 if (setsockopt(drv->dhcp_sock, SOL_SOCKET, SO_REUSEADDR, (char *) &n,
283 sizeof(n)) == -1) {
284 wpa_printf(MSG_ERROR, "setsockopt[SOL_SOCKET,SO_REUSEADDR]: %s",
285 strerror(errno));
286 return -1;
287 }
288 if (setsockopt(drv->dhcp_sock, SOL_SOCKET, SO_BROADCAST, (char *) &n,
289 sizeof(n)) == -1) {
290 wpa_printf(MSG_ERROR, "setsockopt[SOL_SOCKET,SO_BROADCAST]: %s",
291 strerror(errno));
292 return -1;
293 }
294
295 os_memset(&ifr, 0, sizeof(ifr));
296 os_strlcpy(ifr.ifr_ifrn.ifrn_name, drv->ifname, IFNAMSIZ);
297 if (setsockopt(drv->dhcp_sock, SOL_SOCKET, SO_BINDTODEVICE,
298 (char *) &ifr, sizeof(ifr)) < 0) {
299 wpa_printf(MSG_ERROR,
300 "setsockopt[SOL_SOCKET,SO_BINDTODEVICE]: %s",
301 strerror(errno));
302 return -1;
303 }
304
305 if (bind(drv->dhcp_sock, (struct sockaddr *) &addr2,
306 sizeof(struct sockaddr)) == -1) {
307 wpa_printf(MSG_ERROR, "bind: %s", strerror(errno));
308 return -1;
309 }
310
311 return 0;
312#else /* __linux__ */
313 return -1;
314#endif /* __linux__ */
315}
316
317
318static int wired_send_eapol(void *priv, const u8 *addr,
319 const u8 *data, size_t data_len, int encrypt,
320 const u8 *own_addr, u32 flags)
321{
322 struct wpa_driver_wired_data *drv = priv;
323 struct ieee8023_hdr *hdr;
324 size_t len;
325 u8 *pos;
326 int res;
327
328 len = sizeof(*hdr) + data_len;
329 hdr = os_zalloc(len);
330 if (hdr == NULL) {
331 wpa_printf(MSG_INFO,
332 "malloc() failed for wired_send_eapol(len=%lu)",
333 (unsigned long) len);
334 return -1;
335 }
336
337 os_memcpy(hdr->dest, drv->use_pae_group_addr ? pae_group_addr : addr,
338 ETH_ALEN);
339 os_memcpy(hdr->src, own_addr, ETH_ALEN);
340 hdr->ethertype = htons(ETH_P_PAE);
341
342 pos = (u8 *) (hdr + 1);
343 os_memcpy(pos, data, data_len);
344
345 res = send(drv->sock, (u8 *) hdr, len, 0);
346 os_free(hdr);
347
348 if (res < 0) {
349 wpa_printf(MSG_ERROR,
350 "wired_send_eapol - packet len: %lu - failed: send: %s",
351 (unsigned long) len, strerror(errno));
352 }
353
354 return res;
355}
356
357
358static void * wired_driver_hapd_init(struct hostapd_data *hapd,
359 struct wpa_init_params *params)
360{
361 struct wpa_driver_wired_data *drv;
362
363 drv = os_zalloc(sizeof(struct wpa_driver_wired_data));
364 if (drv == NULL) {
365 wpa_printf(MSG_INFO,
366 "Could not allocate memory for wired driver data");
367 return NULL;
368 }
369
370 drv->ctx = hapd;
371 os_strlcpy(drv->ifname, params->ifname, sizeof(drv->ifname));
372 drv->use_pae_group_addr = params->use_pae_group_addr;
373
374 if (wired_init_sockets(drv, params->own_addr)) {
375 os_free(drv);
376 return NULL;
377 }
378
379 return drv;
380}
381
382
383static void wired_driver_hapd_deinit(void *priv)
384{
385 struct wpa_driver_wired_data *drv = priv;
386
387 if (drv->sock >= 0) {
388 eloop_unregister_read_sock(drv->sock);
389 close(drv->sock);
390 }
391
392 if (drv->dhcp_sock >= 0) {
393 eloop_unregister_read_sock(drv->dhcp_sock);
394 close(drv->dhcp_sock);
395 }
396
397 os_free(drv);
398}
399
400
401static int wpa_driver_wired_get_ssid(void *priv, u8 *ssid)
402{
403 ssid[0] = 0;
404 return 0;
405}
406
407
408static int wpa_driver_wired_get_bssid(void *priv, u8 *bssid)
409{
410 /* Report PAE group address as the "BSSID" for wired connection. */
411 os_memcpy(bssid, pae_group_addr, ETH_ALEN);
412 return 0;
413}
414
415
416static int wpa_driver_wired_get_capa(void *priv, struct wpa_driver_capa *capa)
417{
418 os_memset(capa, 0, sizeof(*capa));
419 capa->flags = WPA_DRIVER_FLAGS_WIRED;
420 return 0;
421}
422
423
424static int wpa_driver_wired_get_ifflags(const char *ifname, int *flags)
425{
426 struct ifreq ifr;
427 int s;
428
429 s = socket(PF_INET, SOCK_DGRAM, 0);
430 if (s < 0) {
431 wpa_printf(MSG_ERROR, "socket: %s", strerror(errno));
432 return -1;
433 }
434
435 os_memset(&ifr, 0, sizeof(ifr));
436 os_strlcpy(ifr.ifr_name, ifname, IFNAMSIZ);
437 if (ioctl(s, SIOCGIFFLAGS, (caddr_t) &ifr) < 0) {
438 wpa_printf(MSG_ERROR, "ioctl[SIOCGIFFLAGS]: %s",
439 strerror(errno));
440 close(s);
441 return -1;
442 }
443 close(s);
444 *flags = ifr.ifr_flags & 0xffff;
445 return 0;
446}
447
448
449static int wpa_driver_wired_set_ifflags(const char *ifname, int flags)
450{
451 struct ifreq ifr;
452 int s;
453
454 s = socket(PF_INET, SOCK_DGRAM, 0);
455 if (s < 0) {
456 wpa_printf(MSG_ERROR, "socket: %s", strerror(errno));
457 return -1;
458 }
459
460 os_memset(&ifr, 0, sizeof(ifr));
461 os_strlcpy(ifr.ifr_name, ifname, IFNAMSIZ);
462 ifr.ifr_flags = flags & 0xffff;
463 if (ioctl(s, SIOCSIFFLAGS, (caddr_t) &ifr) < 0) {
464 wpa_printf(MSG_ERROR, "ioctl[SIOCSIFFLAGS]: %s",
465 strerror(errno));
466 close(s);
467 return -1;
468 }
469 close(s);
470 return 0;
471}
472
473#if defined(__FreeBSD__) || defined(__DragonFly__) || defined(__FreeBSD_kernel__)
474static int wpa_driver_wired_get_ifstatus(const char *ifname, int *status)
475{
476 struct ifmediareq ifmr;
477 int s;
478
479 s = socket(PF_INET, SOCK_DGRAM, 0);
480 if (s < 0) {
481 wpa_printf(MSG_ERROR, "socket: %s", strerror(errno));
482 return -1;
483 }
484
485 os_memset(&ifmr, 0, sizeof(ifmr));
486 os_strlcpy(ifmr.ifm_name, ifname, IFNAMSIZ);
487 if (ioctl(s, SIOCGIFMEDIA, (caddr_t) &ifmr) < 0) {
488 wpa_printf(MSG_ERROR, "ioctl[SIOCGIFMEDIA]: %s",
489 strerror(errno));
490 close(s);
491 return -1;
492 }
493 close(s);
494 *status = (ifmr.ifm_status & (IFM_ACTIVE | IFM_AVALID)) ==
495 (IFM_ACTIVE | IFM_AVALID);
496
497 return 0;
498}
499#endif /* defined(__FreeBSD__) || defined(__DragonFly__) || defined(FreeBSD_kernel__) */
500
501
502static int wpa_driver_wired_multi(const char *ifname, const u8 *addr, int add)
503{
504 struct ifreq ifr;
505 int s;
506
507#ifdef __sun__
508 return -1;
509#endif /* __sun__ */
510
511 s = socket(PF_INET, SOCK_DGRAM, 0);
512 if (s < 0) {
513 wpa_printf(MSG_ERROR, "socket: %s", strerror(errno));
514 return -1;
515 }
516
517 os_memset(&ifr, 0, sizeof(ifr));
518 os_strlcpy(ifr.ifr_name, ifname, IFNAMSIZ);
519#ifdef __linux__
520 ifr.ifr_hwaddr.sa_family = AF_UNSPEC;
521 os_memcpy(ifr.ifr_hwaddr.sa_data, addr, ETH_ALEN);
522#endif /* __linux__ */
523#if defined(__FreeBSD__) || defined(__DragonFly__) || defined(__FreeBSD_kernel__)
524 {
525 struct sockaddr_dl *dlp;
526 dlp = (struct sockaddr_dl *) &ifr.ifr_addr;
527 dlp->sdl_len = sizeof(struct sockaddr_dl);
528 dlp->sdl_family = AF_LINK;
529 dlp->sdl_index = 0;
530 dlp->sdl_nlen = 0;
531 dlp->sdl_alen = ETH_ALEN;
532 dlp->sdl_slen = 0;
533 os_memcpy(LLADDR(dlp), addr, ETH_ALEN);
534 }
535#endif /* defined(__FreeBSD__) || defined(__DragonFly__) || defined(FreeBSD_kernel__) */
536#if defined(__NetBSD__) || defined(__OpenBSD__) || defined(__APPLE__)
537 {
538 struct sockaddr *sap;
539 sap = (struct sockaddr *) &ifr.ifr_addr;
540 sap->sa_len = sizeof(struct sockaddr);
541 sap->sa_family = AF_UNSPEC;
542 os_memcpy(sap->sa_data, addr, ETH_ALEN);
543 }
544#endif /* defined(__NetBSD__) || defined(__OpenBSD__) || defined(__APPLE__) */
545
546 if (ioctl(s, add ? SIOCADDMULTI : SIOCDELMULTI, (caddr_t) &ifr) < 0) {
547 wpa_printf(MSG_ERROR, "ioctl[SIOC{ADD/DEL}MULTI]: %s",
548 strerror(errno));
549 close(s);
550 return -1;
551 }
552 close(s);
553 return 0;
554}
555
556
557static void * wpa_driver_wired_init(void *ctx, const char *ifname)
558{
559 struct wpa_driver_wired_data *drv;
560 int flags, status;
561
562 drv = os_zalloc(sizeof(*drv));
563 if (drv == NULL)
564 return NULL;
565 os_strlcpy(drv->ifname, ifname, sizeof(drv->ifname));
566 drv->ctx = ctx;
567
568#ifdef __linux__
569 drv->pf_sock = socket(PF_PACKET, SOCK_DGRAM, 0);
570 if (drv->pf_sock < 0)
571 wpa_printf(MSG_ERROR, "socket(PF_PACKET): %s", strerror(errno));
572#else /* __linux__ */
573 drv->pf_sock = -1;
574#endif /* __linux__ */
575
576 if (wpa_driver_wired_get_ifflags(ifname, &flags) == 0 &&
577 !(flags & IFF_UP) &&
578 wpa_driver_wired_set_ifflags(ifname, flags | IFF_UP) == 0) {
579 drv->iff_up = 1;
580 }
581
582 if (wired_multicast_membership(drv->pf_sock,
583 if_nametoindex(drv->ifname),
584 pae_group_addr, 1) == 0) {
585 wpa_printf(MSG_DEBUG, "%s: Added multicast membership with "
586 "packet socket", __func__);
587 drv->membership = 1;
588 } else if (wpa_driver_wired_multi(ifname, pae_group_addr, 1) == 0) {
589 wpa_printf(MSG_DEBUG, "%s: Added multicast membership with "
590 "SIOCADDMULTI", __func__);
591 drv->multi = 1;
592 } else if (wpa_driver_wired_get_ifflags(ifname, &flags) < 0) {
593 wpa_printf(MSG_INFO, "%s: Could not get interface "
594 "flags", __func__);
595 os_free(drv);
596 return NULL;
597 } else if (flags & IFF_ALLMULTI) {
598 wpa_printf(MSG_DEBUG, "%s: Interface is already configured "
599 "for multicast", __func__);
600 } else if (wpa_driver_wired_set_ifflags(ifname,
601 flags | IFF_ALLMULTI) < 0) {
602 wpa_printf(MSG_INFO, "%s: Failed to enable allmulti",
603 __func__);
604 os_free(drv);
605 return NULL;
606 } else {
607 wpa_printf(MSG_DEBUG, "%s: Enabled allmulti mode",
608 __func__);
609 drv->iff_allmulti = 1;
610 }
611#if defined(__FreeBSD__) || defined(__DragonFly__) || defined(__FreeBSD_kernel__)
612 {
613 int status;
614 wpa_printf(MSG_DEBUG, "%s: waiting for link to become active",
615 __func__);
616 while (wpa_driver_wired_get_ifstatus(ifname, &status) == 0 &&
617 status == 0)
618 sleep(1);
619 }
620#endif /* defined(__FreeBSD__) || defined(__DragonFly__) || defined(FreeBSD_kernel__) */
621
622 return drv;
623}
624
625
626static void wpa_driver_wired_deinit(void *priv)
627{
628 struct wpa_driver_wired_data *drv = priv;
629 int flags;
630
631 if (drv->membership &&
632 wired_multicast_membership(drv->pf_sock,
633 if_nametoindex(drv->ifname),
634 pae_group_addr, 0) < 0) {
635 wpa_printf(MSG_DEBUG, "%s: Failed to remove PAE multicast "
636 "group (PACKET)", __func__);
637 }
638
639 if (drv->multi &&
640 wpa_driver_wired_multi(drv->ifname, pae_group_addr, 0) < 0) {
641 wpa_printf(MSG_DEBUG, "%s: Failed to remove PAE multicast "
642 "group (SIOCDELMULTI)", __func__);
643 }
644
645 if (drv->iff_allmulti &&
646 (wpa_driver_wired_get_ifflags(drv->ifname, &flags) < 0 ||
647 wpa_driver_wired_set_ifflags(drv->ifname,
648 flags & ~IFF_ALLMULTI) < 0)) {
649 wpa_printf(MSG_DEBUG, "%s: Failed to disable allmulti mode",
650 __func__);
651 }
652
653 if (drv->iff_up &&
654 wpa_driver_wired_get_ifflags(drv->ifname, &flags) == 0 &&
655 (flags & IFF_UP) &&
656 wpa_driver_wired_set_ifflags(drv->ifname, flags & ~IFF_UP) < 0) {
657 wpa_printf(MSG_DEBUG, "%s: Failed to set the interface down",
658 __func__);
659 }
660
661 if (drv->pf_sock != -1)
662 close(drv->pf_sock);
663
664 os_free(drv);
665}
666
667
668const struct wpa_driver_ops wpa_driver_wired_ops = {
669 .name = "wired",
670 .desc = "Wired Ethernet driver",
671 .hapd_init = wired_driver_hapd_init,
672 .hapd_deinit = wired_driver_hapd_deinit,
673 .hapd_send_eapol = wired_send_eapol,
674 .get_ssid = wpa_driver_wired_get_ssid,
675 .get_bssid = wpa_driver_wired_get_bssid,
676 .get_capa = wpa_driver_wired_get_capa,
677 .init = wpa_driver_wired_init,
678 .deinit = wpa_driver_wired_deinit,
679};