2 * WPA Supplicant / privileged helper program
3 * Copyright (c) 2007-2009, Jouni Malinen <j@w1.fi>
5 * This software may be distributed under the terms of the BSD license.
6 * See README for more details.
12 #endif /* __linux__ */
18 #include "common/version.h"
19 #include "drivers/driver.h"
20 #include "l2_packet/l2_packet.h"
21 #include "common/privsep_commands.h"
22 #include "common/ieee802_11_defs.h"
25 struct wpa_priv_interface {
26 struct wpa_priv_interface *next;
32 struct wpa_driver_ops *driver;
34 struct sockaddr_un drv_addr;
37 /* TODO: add support for multiple l2 connections */
38 struct l2_packet_data *l2;
39 struct sockaddr_un l2_addr;
43 static void wpa_priv_cmd_register(struct wpa_priv_interface *iface,
44 struct sockaddr_un *from)
46 if (iface->drv_priv) {
47 wpa_printf(MSG_DEBUG, "Cleaning up forgotten driver instance");
48 if (iface->driver->deinit)
49 iface->driver->deinit(iface->drv_priv);
50 iface->drv_priv = NULL;
51 iface->wpas_registered = 0;
55 wpa_printf(MSG_DEBUG, "Cleaning up forgotten l2_packet "
57 l2_packet_deinit(iface->l2);
61 if (iface->driver->init == NULL)
64 iface->drv_priv = iface->driver->init(iface, iface->ifname);
65 if (iface->drv_priv == NULL) {
66 wpa_printf(MSG_DEBUG, "Failed to initialize driver wrapper");
70 wpa_printf(MSG_DEBUG, "Driver wrapper '%s' initialized for interface "
71 "'%s'", iface->driver_name, iface->ifname);
73 os_memcpy(&iface->drv_addr, from, sizeof(iface->drv_addr));
74 iface->wpas_registered = 1;
76 if (iface->driver->set_param &&
77 iface->driver->set_param(iface->drv_priv, NULL) < 0) {
78 wpa_printf(MSG_ERROR, "Driver interface rejected param");
83 static void wpa_priv_cmd_unregister(struct wpa_priv_interface *iface,
84 struct sockaddr_un *from)
86 if (iface->drv_priv) {
87 if (iface->driver->deinit)
88 iface->driver->deinit(iface->drv_priv);
89 iface->drv_priv = NULL;
90 iface->wpas_registered = 0;
95 static void wpa_priv_cmd_scan(struct wpa_priv_interface *iface,
96 char *buf, size_t len)
98 struct wpa_driver_scan_params params;
100 if (iface->drv_priv == NULL)
103 os_memset(¶ms, 0, sizeof(params));
105 params.ssids[0].ssid = (u8 *) buf;
106 params.ssids[0].ssid_len = len;
107 params.num_ssids = 1;
110 if (iface->driver->scan2)
111 iface->driver->scan2(iface->drv_priv, ¶ms);
115 static void wpa_priv_get_scan_results2(struct wpa_priv_interface *iface,
116 struct sockaddr_un *from)
118 struct wpa_scan_results *res;
119 u8 *buf = NULL, *pos, *end;
123 res = iface->driver->get_scan_results2(iface->drv_priv);
127 buf = os_malloc(60000);
133 os_memcpy(pos, &val, sizeof(int));
136 for (i = 0; i < res->num; i++) {
137 struct wpa_scan_res *r = res->res[i];
138 val = sizeof(*r) + r->ie_len;
139 if (end - pos < (int) sizeof(int) + val)
141 os_memcpy(pos, &val, sizeof(int));
143 os_memcpy(pos, r, val);
147 sendto(iface->fd, buf, pos - buf, 0, (struct sockaddr *) from,
151 wpa_scan_results_free(res);
156 wpa_scan_results_free(res);
157 sendto(iface->fd, "", 0, 0, (struct sockaddr *) from, sizeof(*from));
161 static void wpa_priv_cmd_get_scan_results(struct wpa_priv_interface *iface,
162 struct sockaddr_un *from)
164 if (iface->drv_priv == NULL)
167 if (iface->driver->get_scan_results2)
168 wpa_priv_get_scan_results2(iface, from);
170 sendto(iface->fd, "", 0, 0, (struct sockaddr *) from,
175 static void wpa_priv_cmd_associate(struct wpa_priv_interface *iface,
176 void *buf, size_t len)
178 struct wpa_driver_associate_params params;
179 struct privsep_cmd_associate *assoc;
183 if (iface->drv_priv == NULL || iface->driver->associate == NULL)
186 if (len < sizeof(*assoc)) {
187 wpa_printf(MSG_DEBUG, "Invalid association request");
192 if (sizeof(*assoc) + assoc->wpa_ie_len > len) {
193 wpa_printf(MSG_DEBUG, "Association request overflow");
197 os_memset(¶ms, 0, sizeof(params));
198 bssid = assoc->bssid;
199 if (bssid[0] | bssid[1] | bssid[2] | bssid[3] | bssid[4] | bssid[5])
200 params.bssid = bssid;
201 params.ssid = assoc->ssid;
202 if (assoc->ssid_len > 32)
204 params.ssid_len = assoc->ssid_len;
205 params.freq.mode = assoc->hwmode;
206 params.freq.freq = assoc->freq;
207 params.freq.channel = assoc->channel;
208 if (assoc->wpa_ie_len) {
209 params.wpa_ie = (u8 *) (assoc + 1);
210 params.wpa_ie_len = assoc->wpa_ie_len;
212 params.pairwise_suite = assoc->pairwise_suite;
213 params.group_suite = assoc->group_suite;
214 params.key_mgmt_suite = assoc->key_mgmt_suite;
215 params.auth_alg = assoc->auth_alg;
216 params.mode = assoc->mode;
218 res = iface->driver->associate(iface->drv_priv, ¶ms);
219 wpa_printf(MSG_DEBUG, "drv->associate: res=%d", res);
223 static void wpa_priv_cmd_get_bssid(struct wpa_priv_interface *iface,
224 struct sockaddr_un *from)
228 if (iface->drv_priv == NULL)
231 if (iface->driver->get_bssid == NULL ||
232 iface->driver->get_bssid(iface->drv_priv, bssid) < 0)
235 sendto(iface->fd, bssid, ETH_ALEN, 0, (struct sockaddr *) from,
240 sendto(iface->fd, "", 0, 0, (struct sockaddr *) from, sizeof(*from));
244 static void wpa_priv_cmd_get_ssid(struct wpa_priv_interface *iface,
245 struct sockaddr_un *from)
247 u8 ssid[sizeof(int) + 32];
250 if (iface->drv_priv == NULL)
253 if (iface->driver->get_ssid == NULL)
256 res = iface->driver->get_ssid(iface->drv_priv, &ssid[sizeof(int)]);
257 if (res < 0 || res > 32)
259 os_memcpy(ssid, &res, sizeof(int));
261 sendto(iface->fd, ssid, sizeof(ssid), 0, (struct sockaddr *) from,
266 sendto(iface->fd, "", 0, 0, (struct sockaddr *) from, sizeof(*from));
270 static void wpa_priv_cmd_set_key(struct wpa_priv_interface *iface,
271 void *buf, size_t len)
273 struct privsep_cmd_set_key *params;
276 if (iface->drv_priv == NULL || iface->driver->set_key == NULL)
279 if (len != sizeof(*params)) {
280 wpa_printf(MSG_DEBUG, "Invalid set_key request");
286 res = iface->driver->set_key(iface->ifname, iface->drv_priv,
288 params->addr, params->key_idx,
290 params->seq_len ? params->seq : NULL,
292 params->key_len ? params->key : NULL,
294 wpa_printf(MSG_DEBUG, "drv->set_key: res=%d", res);
298 static void wpa_priv_cmd_get_capa(struct wpa_priv_interface *iface,
299 struct sockaddr_un *from)
301 struct wpa_driver_capa capa;
303 if (iface->drv_priv == NULL)
306 if (iface->driver->get_capa == NULL ||
307 iface->driver->get_capa(iface->drv_priv, &capa) < 0)
310 sendto(iface->fd, &capa, sizeof(capa), 0, (struct sockaddr *) from,
315 sendto(iface->fd, "", 0, 0, (struct sockaddr *) from, sizeof(*from));
319 static void wpa_priv_l2_rx(void *ctx, const u8 *src_addr, const u8 *buf,
322 struct wpa_priv_interface *iface = ctx;
326 io[0].iov_base = (u8 *) src_addr;
327 io[0].iov_len = ETH_ALEN;
328 io[1].iov_base = (u8 *) buf;
331 os_memset(&msg, 0, sizeof(msg));
334 msg.msg_name = &iface->l2_addr;
335 msg.msg_namelen = sizeof(iface->l2_addr);
337 if (sendmsg(iface->fd, &msg, 0) < 0) {
338 wpa_printf(MSG_ERROR, "sendmsg(l2 rx): %s", strerror(errno));
343 static void wpa_priv_cmd_l2_register(struct wpa_priv_interface *iface,
344 struct sockaddr_un *from,
345 void *buf, size_t len)
348 u8 own_addr[ETH_ALEN];
352 if (len != 2 * sizeof(int)) {
353 wpa_printf(MSG_DEBUG, "Invalid l2_register length %lu",
354 (unsigned long) len);
359 if (proto != ETH_P_EAPOL && proto != ETH_P_RSN_PREAUTH) {
360 wpa_printf(MSG_DEBUG, "Refused l2_packet connection for "
361 "ethertype 0x%x", proto);
366 wpa_printf(MSG_DEBUG, "Cleaning up forgotten l2_packet "
368 l2_packet_deinit(iface->l2);
372 os_memcpy(&iface->l2_addr, from, sizeof(iface->l2_addr));
374 iface->l2 = l2_packet_init(iface->ifname, NULL, proto,
375 wpa_priv_l2_rx, iface, reg_cmd[1]);
376 if (iface->l2 == NULL) {
377 wpa_printf(MSG_DEBUG, "Failed to initialize l2_packet "
378 "instance for protocol %d", proto);
382 if (l2_packet_get_own_addr(iface->l2, own_addr) < 0) {
383 wpa_printf(MSG_DEBUG, "Failed to get own address from "
385 l2_packet_deinit(iface->l2);
390 res = sendto(iface->fd, own_addr, ETH_ALEN, 0,
391 (struct sockaddr *) from, sizeof(*from));
392 wpa_printf(MSG_DEBUG, "L2 registration: res=%d", res);
396 static void wpa_priv_cmd_l2_unregister(struct wpa_priv_interface *iface,
397 struct sockaddr_un *from)
400 l2_packet_deinit(iface->l2);
406 static void wpa_priv_cmd_l2_notify_auth_start(struct wpa_priv_interface *iface,
407 struct sockaddr_un *from)
410 l2_packet_notify_auth_start(iface->l2);
414 static void wpa_priv_cmd_l2_send(struct wpa_priv_interface *iface,
415 struct sockaddr_un *from,
416 void *buf, size_t len)
422 if (iface->l2 == NULL)
425 if (len < ETH_ALEN + 2) {
426 wpa_printf(MSG_DEBUG, "Too short L2 send packet (len=%lu)",
427 (unsigned long) len);
432 os_memcpy(&proto, buf + ETH_ALEN, 2);
434 if (proto != ETH_P_EAPOL && proto != ETH_P_RSN_PREAUTH) {
435 wpa_printf(MSG_DEBUG, "Refused l2_packet send for ethertype "
440 res = l2_packet_send(iface->l2, dst_addr, proto, buf + ETH_ALEN + 2,
442 wpa_printf(MSG_DEBUG, "L2 send: res=%d", res);
446 static void wpa_priv_cmd_set_country(struct wpa_priv_interface *iface,
449 if (iface->drv_priv == NULL || iface->driver->set_country == NULL ||
453 iface->driver->set_country(iface->drv_priv, buf);
457 static void wpa_priv_receive(int sock, void *eloop_ctx, void *sock_ctx)
459 struct wpa_priv_interface *iface = eloop_ctx;
460 char buf[2000], *pos;
464 struct sockaddr_un from;
465 socklen_t fromlen = sizeof(from);
467 res = recvfrom(sock, buf, sizeof(buf), 0, (struct sockaddr *) &from,
470 wpa_printf(MSG_ERROR, "recvfrom: %s", strerror(errno));
474 if (res < (int) sizeof(int)) {
475 wpa_printf(MSG_DEBUG, "Too short command (len=%d)", res);
479 os_memcpy(&cmd, buf, sizeof(int));
480 wpa_printf(MSG_DEBUG, "Command %d for interface %s",
482 cmd_buf = &buf[sizeof(int)];
483 cmd_len = res - sizeof(int);
486 case PRIVSEP_CMD_REGISTER:
487 wpa_priv_cmd_register(iface, &from);
489 case PRIVSEP_CMD_UNREGISTER:
490 wpa_priv_cmd_unregister(iface, &from);
492 case PRIVSEP_CMD_SCAN:
493 wpa_priv_cmd_scan(iface, cmd_buf, cmd_len);
495 case PRIVSEP_CMD_GET_SCAN_RESULTS:
496 wpa_priv_cmd_get_scan_results(iface, &from);
498 case PRIVSEP_CMD_ASSOCIATE:
499 wpa_priv_cmd_associate(iface, cmd_buf, cmd_len);
501 case PRIVSEP_CMD_GET_BSSID:
502 wpa_priv_cmd_get_bssid(iface, &from);
504 case PRIVSEP_CMD_GET_SSID:
505 wpa_priv_cmd_get_ssid(iface, &from);
507 case PRIVSEP_CMD_SET_KEY:
508 wpa_priv_cmd_set_key(iface, cmd_buf, cmd_len);
510 case PRIVSEP_CMD_GET_CAPA:
511 wpa_priv_cmd_get_capa(iface, &from);
513 case PRIVSEP_CMD_L2_REGISTER:
514 wpa_priv_cmd_l2_register(iface, &from, cmd_buf, cmd_len);
516 case PRIVSEP_CMD_L2_UNREGISTER:
517 wpa_priv_cmd_l2_unregister(iface, &from);
519 case PRIVSEP_CMD_L2_NOTIFY_AUTH_START:
520 wpa_priv_cmd_l2_notify_auth_start(iface, &from);
522 case PRIVSEP_CMD_L2_SEND:
523 wpa_priv_cmd_l2_send(iface, &from, cmd_buf, cmd_len);
525 case PRIVSEP_CMD_SET_COUNTRY:
527 if (pos + cmd_len >= buf + sizeof(buf))
530 wpa_priv_cmd_set_country(iface, pos);
536 static void wpa_priv_interface_deinit(struct wpa_priv_interface *iface)
538 if (iface->drv_priv && iface->driver->deinit)
539 iface->driver->deinit(iface->drv_priv);
541 if (iface->fd >= 0) {
542 eloop_unregister_read_sock(iface->fd);
544 unlink(iface->sock_name);
548 l2_packet_deinit(iface->l2);
550 os_free(iface->ifname);
551 os_free(iface->driver_name);
552 os_free(iface->sock_name);
557 static struct wpa_priv_interface *
558 wpa_priv_interface_init(const char *dir, const char *params)
560 struct wpa_priv_interface *iface;
563 struct sockaddr_un addr;
566 pos = os_strchr(params, ':');
570 iface = os_zalloc(sizeof(*iface));
576 iface->driver_name = dup_binstr(params, len);
577 if (iface->driver_name == NULL) {
578 wpa_priv_interface_deinit(iface);
582 for (i = 0; wpa_drivers[i]; i++) {
583 if (os_strcmp(iface->driver_name,
584 wpa_drivers[i]->name) == 0) {
585 iface->driver = wpa_drivers[i];
589 if (iface->driver == NULL) {
590 wpa_printf(MSG_ERROR, "Unsupported driver '%s'",
592 wpa_priv_interface_deinit(iface);
597 iface->ifname = os_strdup(pos);
598 if (iface->ifname == NULL) {
599 wpa_priv_interface_deinit(iface);
603 len = os_strlen(dir) + 1 + os_strlen(iface->ifname);
604 iface->sock_name = os_malloc(len + 1);
605 if (iface->sock_name == NULL) {
606 wpa_priv_interface_deinit(iface);
610 os_snprintf(iface->sock_name, len + 1, "%s/%s", dir, iface->ifname);
611 if (os_strlen(iface->sock_name) >= sizeof(addr.sun_path)) {
612 wpa_priv_interface_deinit(iface);
616 iface->fd = socket(PF_UNIX, SOCK_DGRAM, 0);
618 wpa_printf(MSG_ERROR, "socket(PF_UNIX): %s", strerror(errno));
619 wpa_priv_interface_deinit(iface);
623 os_memset(&addr, 0, sizeof(addr));
624 addr.sun_family = AF_UNIX;
625 os_strlcpy(addr.sun_path, iface->sock_name, sizeof(addr.sun_path));
627 if (bind(iface->fd, (struct sockaddr *) &addr, sizeof(addr)) < 0) {
628 wpa_printf(MSG_DEBUG, "bind(PF_UNIX) failed: %s",
630 if (connect(iface->fd, (struct sockaddr *) &addr,
632 wpa_printf(MSG_DEBUG, "Socket exists, but does not "
633 "allow connections - assuming it was "
634 "leftover from forced program termination");
635 if (unlink(iface->sock_name) < 0) {
636 wpa_printf(MSG_ERROR,
637 "Could not unlink existing ctrl_iface socket '%s': %s",
638 iface->sock_name, strerror(errno));
641 if (bind(iface->fd, (struct sockaddr *) &addr,
643 wpa_printf(MSG_ERROR,
644 "wpa-priv-iface-init: bind(PF_UNIX): %s",
648 wpa_printf(MSG_DEBUG, "Successfully replaced leftover "
649 "socket '%s'", iface->sock_name);
651 wpa_printf(MSG_INFO, "Socket exists and seems to be "
652 "in use - cannot override it");
653 wpa_printf(MSG_INFO, "Delete '%s' manually if it is "
654 "not used anymore", iface->sock_name);
659 if (chmod(iface->sock_name, S_IRWXU | S_IRWXG | S_IRWXO) < 0) {
660 wpa_printf(MSG_ERROR, "chmod: %s", strerror(errno));
664 eloop_register_read_sock(iface->fd, wpa_priv_receive, iface, NULL);
669 wpa_priv_interface_deinit(iface);
674 static int wpa_priv_send_event(struct wpa_priv_interface *iface, int event,
675 const void *data, size_t data_len)
680 io[0].iov_base = &event;
681 io[0].iov_len = sizeof(event);
682 io[1].iov_base = (u8 *) data;
683 io[1].iov_len = data_len;
685 os_memset(&msg, 0, sizeof(msg));
687 msg.msg_iovlen = data ? 2 : 1;
688 msg.msg_name = &iface->drv_addr;
689 msg.msg_namelen = sizeof(iface->drv_addr);
691 if (sendmsg(iface->fd, &msg, 0) < 0) {
692 wpa_printf(MSG_ERROR, "sendmsg(wpas_socket): %s",
701 static void wpa_priv_send_assoc(struct wpa_priv_interface *iface, int event,
702 union wpa_event_data *data)
704 size_t buflen = 3 * sizeof(int);
709 buflen += data->assoc_info.req_ies_len +
710 data->assoc_info.resp_ies_len +
711 data->assoc_info.beacon_ies_len;
714 buf = os_malloc(buflen);
720 if (data && data->assoc_info.req_ies) {
721 len = data->assoc_info.req_ies_len;
722 os_memcpy(pos, &len, sizeof(int));
724 os_memcpy(pos, data->assoc_info.req_ies, len);
728 os_memcpy(pos, &len, sizeof(int));
732 if (data && data->assoc_info.resp_ies) {
733 len = data->assoc_info.resp_ies_len;
734 os_memcpy(pos, &len, sizeof(int));
736 os_memcpy(pos, data->assoc_info.resp_ies, len);
740 os_memcpy(pos, &len, sizeof(int));
744 if (data && data->assoc_info.beacon_ies) {
745 len = data->assoc_info.beacon_ies_len;
746 os_memcpy(pos, &len, sizeof(int));
748 os_memcpy(pos, data->assoc_info.beacon_ies, len);
752 os_memcpy(pos, &len, sizeof(int));
756 wpa_priv_send_event(iface, event, buf, buflen);
762 static void wpa_priv_send_interface_status(struct wpa_priv_interface *iface,
763 union wpa_event_data *data)
773 ievent = data->interface_status.ievent;
774 maxlen = sizeof(data->interface_status.ifname);
775 ifname = data->interface_status.ifname;
776 for (len = 0; len < maxlen && ifname[len]; len++)
779 buf = os_malloc(sizeof(int) + len);
783 os_memcpy(buf, &ievent, sizeof(int));
784 os_memcpy(buf + sizeof(int), ifname, len);
786 wpa_priv_send_event(iface, PRIVSEP_EVENT_INTERFACE_STATUS,
787 buf, sizeof(int) + len);
794 static void wpa_priv_send_ft_response(struct wpa_priv_interface *iface,
795 union wpa_event_data *data)
800 if (data == NULL || data->ft_ies.ies == NULL)
803 len = sizeof(int) + ETH_ALEN + data->ft_ies.ies_len;
804 buf = os_malloc(len);
809 os_memcpy(pos, &data->ft_ies.ft_action, sizeof(int));
811 os_memcpy(pos, data->ft_ies.target_ap, ETH_ALEN);
813 os_memcpy(pos, data->ft_ies.ies, data->ft_ies.ies_len);
815 wpa_priv_send_event(iface, PRIVSEP_EVENT_FT_RESPONSE, buf, len);
822 void wpa_supplicant_event(void *ctx, enum wpa_event_type event,
823 union wpa_event_data *data)
825 struct wpa_priv_interface *iface = ctx;
827 wpa_printf(MSG_DEBUG, "%s - event=%d", __func__, event);
829 if (!iface->wpas_registered) {
830 wpa_printf(MSG_DEBUG, "Driver event received, but "
831 "wpa_supplicant not registered");
837 wpa_priv_send_assoc(iface, PRIVSEP_EVENT_ASSOC, data);
840 wpa_priv_send_event(iface, PRIVSEP_EVENT_DISASSOC, NULL, 0);
842 case EVENT_ASSOCINFO:
845 wpa_priv_send_assoc(iface, PRIVSEP_EVENT_ASSOCINFO, data);
847 case EVENT_MICHAEL_MIC_FAILURE:
850 wpa_priv_send_event(iface, PRIVSEP_EVENT_MICHAEL_MIC_FAILURE,
851 &data->michael_mic_failure.unicast,
854 case EVENT_SCAN_RESULTS:
855 wpa_priv_send_event(iface, PRIVSEP_EVENT_SCAN_RESULTS, NULL,
858 case EVENT_INTERFACE_STATUS:
859 wpa_priv_send_interface_status(iface, data);
861 case EVENT_PMKID_CANDIDATE:
864 wpa_priv_send_event(iface, PRIVSEP_EVENT_PMKID_CANDIDATE,
865 &data->pmkid_candidate,
866 sizeof(struct pmkid_candidate));
871 wpa_priv_send_event(iface, PRIVSEP_EVENT_STKSTART,
872 &data->stkstart.peer, ETH_ALEN);
874 case EVENT_FT_RESPONSE:
875 wpa_priv_send_ft_response(iface, data);
878 wpa_printf(MSG_DEBUG, "Unsupported driver event %d - TODO",
885 void wpa_supplicant_rx_eapol(void *ctx, const u8 *src_addr,
886 const u8 *buf, size_t len)
888 struct wpa_priv_interface *iface = ctx;
891 int event = PRIVSEP_EVENT_RX_EAPOL;
893 wpa_printf(MSG_DEBUG, "RX EAPOL from driver");
894 io[0].iov_base = &event;
895 io[0].iov_len = sizeof(event);
896 io[1].iov_base = (u8 *) src_addr;
897 io[1].iov_len = ETH_ALEN;
898 io[2].iov_base = (u8 *) buf;
901 os_memset(&msg, 0, sizeof(msg));
904 msg.msg_name = &iface->drv_addr;
905 msg.msg_namelen = sizeof(iface->drv_addr);
907 if (sendmsg(iface->fd, &msg, 0) < 0)
908 wpa_printf(MSG_ERROR, "sendmsg(wpas_socket): %s",
913 static void wpa_priv_terminate(int sig, void *signal_ctx)
915 wpa_printf(MSG_DEBUG, "wpa_priv termination requested");
920 static void wpa_priv_fd_workaround(void)
924 /* When started from pcmcia-cs scripts, wpa_supplicant might start with
925 * fd 0, 1, and 2 closed. This will cause some issues because many
926 * places in wpa_supplicant are still printing out to stdout. As a
927 * workaround, make sure that fd's 0, 1, and 2 are not used for other
929 for (i = 0; i < 3; i++) {
930 s = open("/dev/null", O_RDWR);
936 #endif /* __linux__ */
940 static void usage(void)
942 printf("wpa_priv v" VERSION_STR "\n"
943 "Copyright (c) 2007-2009, Jouni Malinen <j@w1.fi> and "
947 " wpa_priv [-Bdd] [-P<pid file>] <driver:ifname> "
948 "[driver:ifname ...]\n");
952 int main(int argc, char *argv[])
956 char *pid_file = NULL;
958 char *ctrl_dir = "/var/run/wpa_priv";
959 struct wpa_priv_interface *interfaces = NULL, *iface;
961 if (os_program_init())
964 wpa_priv_fd_workaround();
967 c = getopt(argc, argv, "Bc:dP:");
981 pid_file = os_rel2abs_path(optarg);
989 if (optind >= argc) {
994 wpa_printf(MSG_DEBUG, "wpa_priv control directory: '%s'", ctrl_dir);
997 wpa_printf(MSG_ERROR, "Failed to initialize event loop");
1001 for (i = optind; i < argc; i++) {
1002 wpa_printf(MSG_DEBUG, "Adding driver:interface %s", argv[i]);
1003 iface = wpa_priv_interface_init(ctrl_dir, argv[i]);
1006 iface->next = interfaces;
1010 if (daemonize && os_daemonize(pid_file))
1013 eloop_register_signal_terminate(wpa_priv_terminate, NULL);
1021 struct wpa_priv_interface *prev = iface;
1022 iface = iface->next;
1023 wpa_priv_interface_deinit(prev);
1028 os_daemonize_terminate(pid_file);
1030 os_program_deinit();