2 * WPA Supplicant / privileged helper program
3 * Copyright (c) 2007-2009, Jouni Malinen <j@w1.fi>
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License version 2 as
7 * published by the Free Software Foundation.
9 * Alternatively, this software may be distributed under the terms of BSD
12 * See README and COPYING for more details.
18 #endif /* __linux__ */
24 #include "common/version.h"
25 #include "drivers/driver.h"
26 #include "l2_packet/l2_packet.h"
27 #include "common/privsep_commands.h"
28 #include "common/ieee802_11_defs.h"
31 struct wpa_priv_interface {
32 struct wpa_priv_interface *next;
38 struct wpa_driver_ops *driver;
40 struct sockaddr_un drv_addr;
43 /* TODO: add support for multiple l2 connections */
44 struct l2_packet_data *l2;
45 struct sockaddr_un l2_addr;
49 static void wpa_priv_cmd_register(struct wpa_priv_interface *iface,
50 struct sockaddr_un *from)
52 if (iface->drv_priv) {
53 wpa_printf(MSG_DEBUG, "Cleaning up forgotten driver instance");
54 if (iface->driver->deinit)
55 iface->driver->deinit(iface->drv_priv);
56 iface->drv_priv = NULL;
57 iface->wpas_registered = 0;
61 wpa_printf(MSG_DEBUG, "Cleaning up forgotten l2_packet "
63 l2_packet_deinit(iface->l2);
67 if (iface->driver->init == NULL)
70 iface->drv_priv = iface->driver->init(iface, iface->ifname);
71 if (iface->drv_priv == NULL) {
72 wpa_printf(MSG_DEBUG, "Failed to initialize driver wrapper");
76 wpa_printf(MSG_DEBUG, "Driver wrapper '%s' initialized for interface "
77 "'%s'", iface->driver_name, iface->ifname);
79 os_memcpy(&iface->drv_addr, from, sizeof(iface->drv_addr));
80 iface->wpas_registered = 1;
82 if (iface->driver->set_param &&
83 iface->driver->set_param(iface->drv_priv, NULL) < 0) {
84 wpa_printf(MSG_ERROR, "Driver interface rejected param");
89 static void wpa_priv_cmd_unregister(struct wpa_priv_interface *iface,
90 struct sockaddr_un *from)
92 if (iface->drv_priv) {
93 if (iface->driver->deinit)
94 iface->driver->deinit(iface->drv_priv);
95 iface->drv_priv = NULL;
96 iface->wpas_registered = 0;
101 static void wpa_priv_cmd_scan(struct wpa_priv_interface *iface,
102 char *buf, size_t len)
104 struct wpa_driver_scan_params params;
106 if (iface->drv_priv == NULL)
109 os_memset(¶ms, 0, sizeof(params));
111 params.ssids[0].ssid = (u8 *) buf;
112 params.ssids[0].ssid_len = len;
113 params.num_ssids = 1;
116 if (iface->driver->scan2)
117 iface->driver->scan2(iface->drv_priv, ¶ms);
121 static void wpa_priv_get_scan_results2(struct wpa_priv_interface *iface,
122 struct sockaddr_un *from)
124 struct wpa_scan_results *res;
125 u8 *buf = NULL, *pos, *end;
129 res = iface->driver->get_scan_results2(iface->drv_priv);
133 buf = os_malloc(60000);
139 os_memcpy(pos, &val, sizeof(int));
142 for (i = 0; i < res->num; i++) {
143 struct wpa_scan_res *r = res->res[i];
144 val = sizeof(*r) + r->ie_len;
145 if (end - pos < (int) sizeof(int) + val)
147 os_memcpy(pos, &val, sizeof(int));
149 os_memcpy(pos, r, val);
153 sendto(iface->fd, buf, pos - buf, 0, (struct sockaddr *) from,
157 wpa_scan_results_free(res);
162 wpa_scan_results_free(res);
163 sendto(iface->fd, "", 0, 0, (struct sockaddr *) from, sizeof(*from));
167 static void wpa_priv_cmd_get_scan_results(struct wpa_priv_interface *iface,
168 struct sockaddr_un *from)
170 if (iface->drv_priv == NULL)
173 if (iface->driver->get_scan_results2)
174 wpa_priv_get_scan_results2(iface, from);
176 sendto(iface->fd, "", 0, 0, (struct sockaddr *) from,
181 static void wpa_priv_cmd_associate(struct wpa_priv_interface *iface,
182 void *buf, size_t len)
184 struct wpa_driver_associate_params params;
185 struct privsep_cmd_associate *assoc;
189 if (iface->drv_priv == NULL || iface->driver->associate == NULL)
192 if (len < sizeof(*assoc)) {
193 wpa_printf(MSG_DEBUG, "Invalid association request");
198 if (sizeof(*assoc) + assoc->wpa_ie_len > len) {
199 wpa_printf(MSG_DEBUG, "Association request overflow");
203 os_memset(¶ms, 0, sizeof(params));
204 bssid = assoc->bssid;
205 if (bssid[0] | bssid[1] | bssid[2] | bssid[3] | bssid[4] | bssid[5])
206 params.bssid = bssid;
207 params.ssid = assoc->ssid;
208 if (assoc->ssid_len > 32)
210 params.ssid_len = assoc->ssid_len;
211 params.freq = assoc->freq;
212 if (assoc->wpa_ie_len) {
213 params.wpa_ie = (u8 *) (assoc + 1);
214 params.wpa_ie_len = assoc->wpa_ie_len;
216 params.pairwise_suite = assoc->pairwise_suite;
217 params.group_suite = assoc->group_suite;
218 params.key_mgmt_suite = assoc->key_mgmt_suite;
219 params.auth_alg = assoc->auth_alg;
220 params.mode = assoc->mode;
222 res = iface->driver->associate(iface->drv_priv, ¶ms);
223 wpa_printf(MSG_DEBUG, "drv->associate: res=%d", res);
227 static void wpa_priv_cmd_get_bssid(struct wpa_priv_interface *iface,
228 struct sockaddr_un *from)
232 if (iface->drv_priv == NULL)
235 if (iface->driver->get_bssid == NULL ||
236 iface->driver->get_bssid(iface->drv_priv, bssid) < 0)
239 sendto(iface->fd, bssid, ETH_ALEN, 0, (struct sockaddr *) from,
244 sendto(iface->fd, "", 0, 0, (struct sockaddr *) from, sizeof(*from));
248 static void wpa_priv_cmd_get_ssid(struct wpa_priv_interface *iface,
249 struct sockaddr_un *from)
251 u8 ssid[sizeof(int) + 32];
254 if (iface->drv_priv == NULL)
257 if (iface->driver->get_ssid == NULL)
260 res = iface->driver->get_ssid(iface->drv_priv, &ssid[sizeof(int)]);
261 if (res < 0 || res > 32)
263 os_memcpy(ssid, &res, sizeof(int));
265 sendto(iface->fd, ssid, sizeof(ssid), 0, (struct sockaddr *) from,
270 sendto(iface->fd, "", 0, 0, (struct sockaddr *) from, sizeof(*from));
274 static void wpa_priv_cmd_set_key(struct wpa_priv_interface *iface,
275 void *buf, size_t len)
277 struct privsep_cmd_set_key *params;
280 if (iface->drv_priv == NULL || iface->driver->set_key == NULL)
283 if (len != sizeof(*params)) {
284 wpa_printf(MSG_DEBUG, "Invalid set_key request");
290 res = iface->driver->set_key(iface->ifname, iface->drv_priv,
292 params->addr, params->key_idx,
294 params->seq_len ? params->seq : NULL,
296 params->key_len ? params->key : NULL,
298 wpa_printf(MSG_DEBUG, "drv->set_key: res=%d", res);
302 static void wpa_priv_cmd_get_capa(struct wpa_priv_interface *iface,
303 struct sockaddr_un *from)
305 struct wpa_driver_capa capa;
307 if (iface->drv_priv == NULL)
310 if (iface->driver->get_capa == NULL ||
311 iface->driver->get_capa(iface->drv_priv, &capa) < 0)
314 sendto(iface->fd, &capa, sizeof(capa), 0, (struct sockaddr *) from,
319 sendto(iface->fd, "", 0, 0, (struct sockaddr *) from, sizeof(*from));
323 static void wpa_priv_l2_rx(void *ctx, const u8 *src_addr, const u8 *buf,
326 struct wpa_priv_interface *iface = ctx;
330 io[0].iov_base = (u8 *) src_addr;
331 io[0].iov_len = ETH_ALEN;
332 io[1].iov_base = (u8 *) buf;
335 os_memset(&msg, 0, sizeof(msg));
338 msg.msg_name = &iface->l2_addr;
339 msg.msg_namelen = sizeof(iface->l2_addr);
341 if (sendmsg(iface->fd, &msg, 0) < 0) {
342 perror("sendmsg(l2 rx)");
347 static void wpa_priv_cmd_l2_register(struct wpa_priv_interface *iface,
348 struct sockaddr_un *from,
349 void *buf, size_t len)
352 u8 own_addr[ETH_ALEN];
356 if (len != 2 * sizeof(int)) {
357 wpa_printf(MSG_DEBUG, "Invalid l2_register length %lu",
358 (unsigned long) len);
363 if (proto != ETH_P_EAPOL && proto != ETH_P_RSN_PREAUTH) {
364 wpa_printf(MSG_DEBUG, "Refused l2_packet connection for "
365 "ethertype 0x%x", proto);
370 wpa_printf(MSG_DEBUG, "Cleaning up forgotten l2_packet "
372 l2_packet_deinit(iface->l2);
376 os_memcpy(&iface->l2_addr, from, sizeof(iface->l2_addr));
378 iface->l2 = l2_packet_init(iface->ifname, NULL, proto,
379 wpa_priv_l2_rx, iface, reg_cmd[1]);
380 if (iface->l2 == NULL) {
381 wpa_printf(MSG_DEBUG, "Failed to initialize l2_packet "
382 "instance for protocol %d", proto);
386 if (l2_packet_get_own_addr(iface->l2, own_addr) < 0) {
387 wpa_printf(MSG_DEBUG, "Failed to get own address from "
389 l2_packet_deinit(iface->l2);
394 res = sendto(iface->fd, own_addr, ETH_ALEN, 0,
395 (struct sockaddr *) from, sizeof(*from));
396 wpa_printf(MSG_DEBUG, "L2 registration: res=%d", res);
400 static void wpa_priv_cmd_l2_unregister(struct wpa_priv_interface *iface,
401 struct sockaddr_un *from)
404 l2_packet_deinit(iface->l2);
410 static void wpa_priv_cmd_l2_notify_auth_start(struct wpa_priv_interface *iface,
411 struct sockaddr_un *from)
414 l2_packet_notify_auth_start(iface->l2);
418 static void wpa_priv_cmd_l2_send(struct wpa_priv_interface *iface,
419 struct sockaddr_un *from,
420 void *buf, size_t len)
426 if (iface->l2 == NULL)
429 if (len < ETH_ALEN + 2) {
430 wpa_printf(MSG_DEBUG, "Too short L2 send packet (len=%lu)",
431 (unsigned long) len);
436 os_memcpy(&proto, buf + ETH_ALEN, 2);
438 if (proto != ETH_P_EAPOL && proto != ETH_P_RSN_PREAUTH) {
439 wpa_printf(MSG_DEBUG, "Refused l2_packet send for ethertype "
444 res = l2_packet_send(iface->l2, dst_addr, proto, buf + ETH_ALEN + 2,
446 wpa_printf(MSG_DEBUG, "L2 send: res=%d", res);
450 static void wpa_priv_cmd_set_country(struct wpa_priv_interface *iface,
453 if (iface->drv_priv == NULL || iface->driver->set_country == NULL ||
457 iface->driver->set_country(iface->drv_priv, buf);
461 static void wpa_priv_receive(int sock, void *eloop_ctx, void *sock_ctx)
463 struct wpa_priv_interface *iface = eloop_ctx;
464 char buf[2000], *pos;
468 struct sockaddr_un from;
469 socklen_t fromlen = sizeof(from);
471 res = recvfrom(sock, buf, sizeof(buf), 0, (struct sockaddr *) &from,
478 if (res < (int) sizeof(int)) {
479 wpa_printf(MSG_DEBUG, "Too short command (len=%d)", res);
483 os_memcpy(&cmd, buf, sizeof(int));
484 wpa_printf(MSG_DEBUG, "Command %d for interface %s",
486 cmd_buf = &buf[sizeof(int)];
487 cmd_len = res - sizeof(int);
490 case PRIVSEP_CMD_REGISTER:
491 wpa_priv_cmd_register(iface, &from);
493 case PRIVSEP_CMD_UNREGISTER:
494 wpa_priv_cmd_unregister(iface, &from);
496 case PRIVSEP_CMD_SCAN:
497 wpa_priv_cmd_scan(iface, cmd_buf, cmd_len);
499 case PRIVSEP_CMD_GET_SCAN_RESULTS:
500 wpa_priv_cmd_get_scan_results(iface, &from);
502 case PRIVSEP_CMD_ASSOCIATE:
503 wpa_priv_cmd_associate(iface, cmd_buf, cmd_len);
505 case PRIVSEP_CMD_GET_BSSID:
506 wpa_priv_cmd_get_bssid(iface, &from);
508 case PRIVSEP_CMD_GET_SSID:
509 wpa_priv_cmd_get_ssid(iface, &from);
511 case PRIVSEP_CMD_SET_KEY:
512 wpa_priv_cmd_set_key(iface, cmd_buf, cmd_len);
514 case PRIVSEP_CMD_GET_CAPA:
515 wpa_priv_cmd_get_capa(iface, &from);
517 case PRIVSEP_CMD_L2_REGISTER:
518 wpa_priv_cmd_l2_register(iface, &from, cmd_buf, cmd_len);
520 case PRIVSEP_CMD_L2_UNREGISTER:
521 wpa_priv_cmd_l2_unregister(iface, &from);
523 case PRIVSEP_CMD_L2_NOTIFY_AUTH_START:
524 wpa_priv_cmd_l2_notify_auth_start(iface, &from);
526 case PRIVSEP_CMD_L2_SEND:
527 wpa_priv_cmd_l2_send(iface, &from, cmd_buf, cmd_len);
529 case PRIVSEP_CMD_SET_COUNTRY:
531 if (pos + cmd_len >= buf + sizeof(buf))
534 wpa_priv_cmd_set_country(iface, pos);
540 static void wpa_priv_interface_deinit(struct wpa_priv_interface *iface)
542 if (iface->drv_priv && iface->driver->deinit)
543 iface->driver->deinit(iface->drv_priv);
545 if (iface->fd >= 0) {
546 eloop_unregister_read_sock(iface->fd);
548 unlink(iface->sock_name);
552 l2_packet_deinit(iface->l2);
554 os_free(iface->ifname);
555 os_free(iface->driver_name);
556 os_free(iface->sock_name);
561 extern struct wpa_driver_ops *wpa_drivers[];
563 static struct wpa_priv_interface *
564 wpa_priv_interface_init(const char *dir, const char *params)
566 struct wpa_priv_interface *iface;
569 struct sockaddr_un addr;
572 pos = os_strchr(params, ':');
576 iface = os_zalloc(sizeof(*iface));
582 iface->driver_name = os_malloc(len + 1);
583 if (iface->driver_name == NULL) {
584 wpa_priv_interface_deinit(iface);
587 os_memcpy(iface->driver_name, params, len);
588 iface->driver_name[len] = '\0';
590 for (i = 0; wpa_drivers[i]; i++) {
591 if (os_strcmp(iface->driver_name,
592 wpa_drivers[i]->name) == 0) {
593 iface->driver = wpa_drivers[i];
597 if (iface->driver == NULL) {
598 wpa_printf(MSG_ERROR, "Unsupported driver '%s'",
600 wpa_priv_interface_deinit(iface);
605 iface->ifname = os_strdup(pos);
606 if (iface->ifname == NULL) {
607 wpa_priv_interface_deinit(iface);
611 len = os_strlen(dir) + 1 + os_strlen(iface->ifname);
612 iface->sock_name = os_malloc(len + 1);
613 if (iface->sock_name == NULL) {
614 wpa_priv_interface_deinit(iface);
618 os_snprintf(iface->sock_name, len + 1, "%s/%s", dir, iface->ifname);
619 if (os_strlen(iface->sock_name) >= sizeof(addr.sun_path)) {
620 wpa_priv_interface_deinit(iface);
624 iface->fd = socket(PF_UNIX, SOCK_DGRAM, 0);
626 perror("socket(PF_UNIX)");
627 wpa_priv_interface_deinit(iface);
631 os_memset(&addr, 0, sizeof(addr));
632 addr.sun_family = AF_UNIX;
633 os_strlcpy(addr.sun_path, iface->sock_name, sizeof(addr.sun_path));
635 if (bind(iface->fd, (struct sockaddr *) &addr, sizeof(addr)) < 0) {
636 wpa_printf(MSG_DEBUG, "bind(PF_UNIX) failed: %s",
638 if (connect(iface->fd, (struct sockaddr *) &addr,
640 wpa_printf(MSG_DEBUG, "Socket exists, but does not "
641 "allow connections - assuming it was "
642 "leftover from forced program termination");
643 if (unlink(iface->sock_name) < 0) {
644 perror("unlink[ctrl_iface]");
645 wpa_printf(MSG_ERROR, "Could not unlink "
646 "existing ctrl_iface socket '%s'",
650 if (bind(iface->fd, (struct sockaddr *) &addr,
652 perror("bind(PF_UNIX)");
655 wpa_printf(MSG_DEBUG, "Successfully replaced leftover "
656 "socket '%s'", iface->sock_name);
658 wpa_printf(MSG_INFO, "Socket exists and seems to be "
659 "in use - cannot override it");
660 wpa_printf(MSG_INFO, "Delete '%s' manually if it is "
661 "not used anymore", iface->sock_name);
666 if (chmod(iface->sock_name, S_IRWXU | S_IRWXG | S_IRWXO) < 0) {
671 eloop_register_read_sock(iface->fd, wpa_priv_receive, iface, NULL);
676 wpa_priv_interface_deinit(iface);
681 static int wpa_priv_send_event(struct wpa_priv_interface *iface, int event,
682 const void *data, size_t data_len)
687 io[0].iov_base = &event;
688 io[0].iov_len = sizeof(event);
689 io[1].iov_base = (u8 *) data;
690 io[1].iov_len = data_len;
692 os_memset(&msg, 0, sizeof(msg));
694 msg.msg_iovlen = data ? 2 : 1;
695 msg.msg_name = &iface->drv_addr;
696 msg.msg_namelen = sizeof(iface->drv_addr);
698 if (sendmsg(iface->fd, &msg, 0) < 0) {
699 perror("sendmsg(wpas_socket)");
707 static void wpa_priv_send_assoc(struct wpa_priv_interface *iface, int event,
708 union wpa_event_data *data)
710 size_t buflen = 3 * sizeof(int);
715 buflen += data->assoc_info.req_ies_len +
716 data->assoc_info.resp_ies_len +
717 data->assoc_info.beacon_ies_len;
720 buf = os_malloc(buflen);
726 if (data && data->assoc_info.req_ies) {
727 len = data->assoc_info.req_ies_len;
728 os_memcpy(pos, &len, sizeof(int));
730 os_memcpy(pos, data->assoc_info.req_ies, len);
734 os_memcpy(pos, &len, sizeof(int));
738 if (data && data->assoc_info.resp_ies) {
739 len = data->assoc_info.resp_ies_len;
740 os_memcpy(pos, &len, sizeof(int));
742 os_memcpy(pos, data->assoc_info.resp_ies, len);
746 os_memcpy(pos, &len, sizeof(int));
750 if (data && data->assoc_info.beacon_ies) {
751 len = data->assoc_info.beacon_ies_len;
752 os_memcpy(pos, &len, sizeof(int));
754 os_memcpy(pos, data->assoc_info.beacon_ies, len);
758 os_memcpy(pos, &len, sizeof(int));
762 wpa_priv_send_event(iface, event, buf, buflen);
768 static void wpa_priv_send_interface_status(struct wpa_priv_interface *iface,
769 union wpa_event_data *data)
779 ievent = data->interface_status.ievent;
780 maxlen = sizeof(data->interface_status.ifname);
781 ifname = data->interface_status.ifname;
782 for (len = 0; len < maxlen && ifname[len]; len++)
785 buf = os_malloc(sizeof(int) + len);
789 os_memcpy(buf, &ievent, sizeof(int));
790 os_memcpy(buf + sizeof(int), ifname, len);
792 wpa_priv_send_event(iface, PRIVSEP_EVENT_INTERFACE_STATUS,
793 buf, sizeof(int) + len);
800 static void wpa_priv_send_ft_response(struct wpa_priv_interface *iface,
801 union wpa_event_data *data)
806 if (data == NULL || data->ft_ies.ies == NULL)
809 len = sizeof(int) + ETH_ALEN + data->ft_ies.ies_len;
810 buf = os_malloc(len);
815 os_memcpy(pos, &data->ft_ies.ft_action, sizeof(int));
817 os_memcpy(pos, data->ft_ies.target_ap, ETH_ALEN);
819 os_memcpy(pos, data->ft_ies.ies, data->ft_ies.ies_len);
821 wpa_priv_send_event(iface, PRIVSEP_EVENT_FT_RESPONSE, buf, len);
828 void wpa_supplicant_event(void *ctx, wpa_event_type event,
829 union wpa_event_data *data)
831 struct wpa_priv_interface *iface = ctx;
833 wpa_printf(MSG_DEBUG, "%s - event=%d", __func__, event);
835 if (!iface->wpas_registered) {
836 wpa_printf(MSG_DEBUG, "Driver event received, but "
837 "wpa_supplicant not registered");
843 wpa_priv_send_assoc(iface, PRIVSEP_EVENT_ASSOC, data);
846 wpa_priv_send_event(iface, PRIVSEP_EVENT_DISASSOC, NULL, 0);
848 case EVENT_ASSOCINFO:
851 wpa_priv_send_assoc(iface, PRIVSEP_EVENT_ASSOCINFO, data);
853 case EVENT_MICHAEL_MIC_FAILURE:
856 wpa_priv_send_event(iface, PRIVSEP_EVENT_MICHAEL_MIC_FAILURE,
857 &data->michael_mic_failure.unicast,
860 case EVENT_SCAN_RESULTS:
861 wpa_priv_send_event(iface, PRIVSEP_EVENT_SCAN_RESULTS, NULL,
864 case EVENT_INTERFACE_STATUS:
865 wpa_priv_send_interface_status(iface, data);
867 case EVENT_PMKID_CANDIDATE:
870 wpa_priv_send_event(iface, PRIVSEP_EVENT_PMKID_CANDIDATE,
871 &data->pmkid_candidate,
872 sizeof(struct pmkid_candidate));
877 wpa_priv_send_event(iface, PRIVSEP_EVENT_STKSTART,
878 &data->stkstart.peer, ETH_ALEN);
880 case EVENT_FT_RESPONSE:
881 wpa_priv_send_ft_response(iface, data);
884 wpa_printf(MSG_DEBUG, "Unsupported driver event %d - TODO",
891 void wpa_supplicant_rx_eapol(void *ctx, const u8 *src_addr,
892 const u8 *buf, size_t len)
894 struct wpa_priv_interface *iface = ctx;
897 int event = PRIVSEP_EVENT_RX_EAPOL;
899 wpa_printf(MSG_DEBUG, "RX EAPOL from driver");
900 io[0].iov_base = &event;
901 io[0].iov_len = sizeof(event);
902 io[1].iov_base = (u8 *) src_addr;
903 io[1].iov_len = ETH_ALEN;
904 io[2].iov_base = (u8 *) buf;
907 os_memset(&msg, 0, sizeof(msg));
910 msg.msg_name = &iface->drv_addr;
911 msg.msg_namelen = sizeof(iface->drv_addr);
913 if (sendmsg(iface->fd, &msg, 0) < 0)
914 perror("sendmsg(wpas_socket)");
918 static void wpa_priv_terminate(int sig, void *eloop_ctx, void *signal_ctx)
920 wpa_printf(MSG_DEBUG, "wpa_priv termination requested");
925 static void wpa_priv_fd_workaround(void)
929 /* When started from pcmcia-cs scripts, wpa_supplicant might start with
930 * fd 0, 1, and 2 closed. This will cause some issues because many
931 * places in wpa_supplicant are still printing out to stdout. As a
932 * workaround, make sure that fd's 0, 1, and 2 are not used for other
934 for (i = 0; i < 3; i++) {
935 s = open("/dev/null", O_RDWR);
941 #endif /* __linux__ */
945 static void usage(void)
947 printf("wpa_priv v" VERSION_STR "\n"
948 "Copyright (c) 2007-2009, Jouni Malinen <j@w1.fi> and "
952 " wpa_priv [-Bdd] [-P<pid file>] <driver:ifname> "
953 "[driver:ifname ...]\n");
957 extern int wpa_debug_level;
959 int main(int argc, char *argv[])
963 char *pid_file = NULL;
965 char *ctrl_dir = "/var/run/wpa_priv";
966 struct wpa_priv_interface *interfaces = NULL, *iface;
968 if (os_program_init())
971 wpa_priv_fd_workaround();
974 c = getopt(argc, argv, "Bc:dP:");
988 pid_file = os_rel2abs_path(optarg);
996 if (optind >= argc) {
1001 wpa_printf(MSG_DEBUG, "wpa_priv control directory: '%s'", ctrl_dir);
1004 wpa_printf(MSG_ERROR, "Failed to initialize event loop");
1008 for (i = optind; i < argc; i++) {
1009 wpa_printf(MSG_DEBUG, "Adding driver:interface %s", argv[i]);
1010 iface = wpa_priv_interface_init(ctrl_dir, argv[i]);
1013 iface->next = interfaces;
1017 if (daemonize && os_daemonize(pid_file))
1020 eloop_register_signal_terminate(wpa_priv_terminate, NULL);
1028 struct wpa_priv_interface *prev = iface;
1029 iface = iface->next;
1030 wpa_priv_interface_deinit(prev);
1035 os_daemonize_terminate(pid_file);
1037 os_program_deinit();