2 * WPA Supplicant / UNIX domain and UDP socket -based control interface
3 * Copyright (c) 2004-2005, Jouni Malinen <jkmaline@cc.hut.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.
19 #include <sys/types.h>
22 #ifndef CONFIG_NATIVE_WINDOWS
23 #include <sys/socket.h>
24 #include <netinet/in.h>
25 #include <arpa/inet.h>
28 #endif /* CONFIG_NATIVE_WINDOWS */
33 #include "wpa_supplicant.h"
36 #include "wpa_supplicant_i.h"
37 #include "ctrl_iface.h"
38 #include "l2_packet.h"
44 #ifdef CONFIG_CTRL_IFACE_UDP
45 #define CTRL_IFACE_SOCK struct sockaddr_in
46 #else /* CONFIG_CTRL_IFACE_UDP */
47 #define CTRL_IFACE_SOCK struct sockaddr_un
48 #endif /* CONFIG_CTRL_IFACE_UDP */
52 * struct wpa_ctrl_dst - Internal data structure of control interface monitors
54 * This structure is used to store information about registered control
55 * interface monitors into struct wpa_supplicant. This data is private to
56 * ctrl_iface.c and should not be touched directly from other files.
59 struct wpa_ctrl_dst
*next
;
67 static int wpa_supplicant_ctrl_iface_set(struct wpa_supplicant
*wpa_s
,
73 value
= strchr(cmd
, ' ');
78 wpa_printf(MSG_DEBUG
, "CTRL_IFACE SET '%s'='%s'", cmd
, value
);
79 if (strcasecmp(cmd
, "EAPOL::heldPeriod") == 0) {
80 eapol_sm_configure(wpa_s
->eapol
,
81 atoi(value
), -1, -1, -1);
82 } else if (strcasecmp(cmd
, "EAPOL::authPeriod") == 0) {
83 eapol_sm_configure(wpa_s
->eapol
,
84 -1, atoi(value
), -1, -1);
85 } else if (strcasecmp(cmd
, "EAPOL::startPeriod") == 0) {
86 eapol_sm_configure(wpa_s
->eapol
,
87 -1, -1, atoi(value
), -1);
88 } else if (strcasecmp(cmd
, "EAPOL::maxStart") == 0) {
89 eapol_sm_configure(wpa_s
->eapol
,
90 -1, -1, -1, atoi(value
));
91 } else if (strcasecmp(cmd
, "dot11RSNAConfigPMKLifetime") == 0) {
92 if (wpa_sm_set_param(wpa_s
->wpa
, RSNA_PMK_LIFETIME
,
95 } else if (strcasecmp(cmd
, "dot11RSNAConfigPMKReauthThreshold") == 0) {
96 if (wpa_sm_set_param(wpa_s
->wpa
, RSNA_PMK_REAUTH_THRESHOLD
,
99 } else if (strcasecmp(cmd
, "dot11RSNAConfigSATimeout") == 0) {
100 if (wpa_sm_set_param(wpa_s
->wpa
, RSNA_SA_TIMEOUT
, atoi(value
)))
109 static int wpa_supplicant_ctrl_iface_preauth(struct wpa_supplicant
*wpa_s
,
114 if (hwaddr_aton(addr
, bssid
)) {
115 wpa_printf(MSG_DEBUG
, "CTRL_IFACE PREAUTH: invalid address "
120 wpa_printf(MSG_DEBUG
, "CTRL_IFACE PREAUTH " MACSTR
, MAC2STR(bssid
));
121 rsn_preauth_deinit(wpa_s
->wpa
);
122 if (rsn_preauth_init(wpa_s
->wpa
, bssid
, wpa_s
->current_ssid
))
129 static int wpa_supplicant_ctrl_iface_attach(struct wpa_supplicant
*wpa_s
,
130 CTRL_IFACE_SOCK
*from
,
133 struct wpa_ctrl_dst
*dst
;
135 dst
= malloc(sizeof(*dst
));
138 memset(dst
, 0, sizeof(*dst
));
139 memcpy(&dst
->addr
, from
, sizeof(CTRL_IFACE_SOCK
));
140 dst
->addrlen
= fromlen
;
141 dst
->debug_level
= MSG_INFO
;
142 dst
->next
= wpa_s
->ctrl_dst
;
143 wpa_s
->ctrl_dst
= dst
;
144 #ifdef CONFIG_CTRL_IFACE_UDP
145 wpa_printf(MSG_DEBUG
, "CTRL_IFACE monitor attached %s:%d",
146 inet_ntoa(from
->sin_addr
), ntohs(from
->sin_port
));
147 #else /* CONFIG_CTRL_IFACE_UDP */
148 wpa_hexdump(MSG_DEBUG
, "CTRL_IFACE monitor attached",
149 (u8
*) from
->sun_path
, fromlen
- sizeof(from
->sun_family
));
150 #endif /* CONFIG_CTRL_IFACE_UDP */
155 static int wpa_supplicant_ctrl_iface_detach(struct wpa_supplicant
*wpa_s
,
156 CTRL_IFACE_SOCK
*from
,
159 struct wpa_ctrl_dst
*dst
, *prev
= NULL
;
161 dst
= wpa_s
->ctrl_dst
;
163 #ifdef CONFIG_CTRL_IFACE_UDP
164 if (from
->sin_addr
.s_addr
== dst
->addr
.sin_addr
.s_addr
&&
165 from
->sin_port
== dst
->addr
.sin_port
) {
167 wpa_s
->ctrl_dst
= dst
->next
;
169 prev
->next
= dst
->next
;
171 wpa_printf(MSG_DEBUG
, "CTRL_IFACE monitor detached "
172 "%s:%d", inet_ntoa(from
->sin_addr
),
173 ntohs(from
->sin_port
));
176 #else /* CONFIG_CTRL_IFACE_UDP */
177 if (fromlen
== dst
->addrlen
&&
178 memcmp(from
->sun_path
, dst
->addr
.sun_path
,
179 fromlen
- sizeof(from
->sun_family
)) == 0) {
181 wpa_s
->ctrl_dst
= dst
->next
;
183 prev
->next
= dst
->next
;
185 wpa_hexdump(MSG_DEBUG
, "CTRL_IFACE monitor detached",
186 (u8
*) from
->sun_path
,
187 fromlen
- sizeof(from
->sun_family
));
190 #endif /* CONFIG_CTRL_IFACE_UDP */
198 static int wpa_supplicant_ctrl_iface_level(struct wpa_supplicant
*wpa_s
,
199 CTRL_IFACE_SOCK
*from
,
203 struct wpa_ctrl_dst
*dst
;
205 wpa_printf(MSG_DEBUG
, "CTRL_IFACE LEVEL %s", level
);
207 dst
= wpa_s
->ctrl_dst
;
209 #ifdef CONFIG_CTRL_IFACE_UDP
210 if (from
->sin_addr
.s_addr
== dst
->addr
.sin_addr
.s_addr
&&
211 from
->sin_port
== dst
->addr
.sin_port
) {
212 wpa_printf(MSG_DEBUG
, "CTRL_IFACE changed monitor "
213 "level %s:%d", inet_ntoa(from
->sin_addr
),
214 ntohs(from
->sin_port
));
215 dst
->debug_level
= atoi(level
);
218 #else /* CONFIG_CTRL_IFACE_UDP */
219 if (fromlen
== dst
->addrlen
&&
220 memcmp(from
->sun_path
, dst
->addr
.sun_path
,
221 fromlen
- sizeof(from
->sun_family
)) == 0) {
222 wpa_hexdump(MSG_DEBUG
, "CTRL_IFACE changed monitor "
223 "level", (u8
*) from
->sun_path
,
224 fromlen
- sizeof(from
->sun_family
));
225 dst
->debug_level
= atoi(level
);
228 #endif /* CONFIG_CTRL_IFACE_UDP */
236 static int wpa_supplicant_ctrl_iface_ctrl_rsp(struct wpa_supplicant
*wpa_s
,
241 struct wpa_ssid
*ssid
;
243 pos
= strchr(rsp
, '-');
248 pos
= strchr(pos
, ':');
253 wpa_printf(MSG_DEBUG
, "CTRL_IFACE: field=%s id=%d", rsp
, id
);
254 wpa_hexdump_ascii_key(MSG_DEBUG
, "CTRL_IFACE: value",
255 (u8
*) pos
, strlen(pos
));
257 ssid
= wpa_config_get_network(wpa_s
->conf
, id
);
259 wpa_printf(MSG_DEBUG
, "CTRL_IFACE: Could not find SSID id=%d "
264 if (strcmp(rsp
, "IDENTITY") == 0) {
265 free(ssid
->identity
);
266 ssid
->identity
= (u8
*) strdup(pos
);
267 ssid
->identity_len
= strlen(pos
);
268 ssid
->pending_req_identity
= 0;
269 if (ssid
== wpa_s
->current_ssid
)
270 wpa_s
->reassociate
= 1;
271 } else if (strcmp(rsp
, "PASSWORD") == 0) {
272 free(ssid
->password
);
273 ssid
->password
= (u8
*) strdup(pos
);
274 ssid
->password_len
= strlen(pos
);
275 ssid
->pending_req_password
= 0;
276 if (ssid
== wpa_s
->current_ssid
)
277 wpa_s
->reassociate
= 1;
278 } else if (strcmp(rsp
, "NEW_PASSWORD") == 0) {
279 free(ssid
->new_password
);
280 ssid
->new_password
= (u8
*) strdup(pos
);
281 ssid
->new_password_len
= strlen(pos
);
282 ssid
->pending_req_new_password
= 0;
283 if (ssid
== wpa_s
->current_ssid
)
284 wpa_s
->reassociate
= 1;
285 } else if (strcmp(rsp
, "PIN") == 0) {
287 ssid
->pin
= strdup(pos
);
288 ssid
->pending_req_pin
= 0;
289 if (ssid
== wpa_s
->current_ssid
)
290 wpa_s
->reassociate
= 1;
291 } else if (strcmp(rsp
, "OTP") == 0) {
293 ssid
->otp
= (u8
*) strdup(pos
);
294 ssid
->otp_len
= strlen(pos
);
295 free(ssid
->pending_req_otp
);
296 ssid
->pending_req_otp
= NULL
;
297 ssid
->pending_req_otp_len
= 0;
298 } else if (strcmp(rsp
, "PASSPHRASE") == 0) {
299 free(ssid
->private_key_passwd
);
300 ssid
->private_key_passwd
= (u8
*) strdup(pos
);
301 ssid
->pending_req_passphrase
= 0;
302 if (ssid
== wpa_s
->current_ssid
)
303 wpa_s
->reassociate
= 1;
305 wpa_printf(MSG_DEBUG
, "CTRL_IFACE: Unknown field '%s'", rsp
);
313 static int wpa_supplicant_ctrl_iface_status(struct wpa_supplicant
*wpa_s
,
315 char *buf
, size_t buflen
)
317 char *pos
, *end
, tmp
[30];
320 verbose
= strcmp(params
, "-VERBOSE") == 0;
323 if (wpa_s
->wpa_state
>= WPA_ASSOCIATED
) {
324 pos
+= snprintf(pos
, end
- pos
, "bssid=" MACSTR
"\n",
325 MAC2STR(wpa_s
->bssid
));
326 if (wpa_s
->current_ssid
) {
327 pos
+= snprintf(pos
, end
- pos
, "ssid=%s\n",
328 wpa_ssid_txt(wpa_s
->current_ssid
->ssid
,
329 wpa_s
->current_ssid
->
333 pos
+= wpa_sm_get_status(wpa_s
->wpa
, pos
, end
- pos
, verbose
);
335 pos
+= snprintf(pos
, end
- pos
, "wpa_state=%s\n",
336 wpa_supplicant_state_txt(wpa_s
->wpa_state
));
339 l2_packet_get_ip_addr(wpa_s
->l2
, tmp
, sizeof(tmp
)) >= 0)
340 pos
+= snprintf(pos
, end
- pos
, "ip_address=%s\n", tmp
);
342 if (wpa_s
->key_mgmt
== WPA_KEY_MGMT_IEEE8021X
||
343 wpa_s
->key_mgmt
== WPA_KEY_MGMT_IEEE8021X_NO_WPA
) {
344 res
= eapol_sm_get_status(wpa_s
->eapol
, pos
, end
- pos
,
350 res
= rsn_preauth_get_status(wpa_s
->wpa
, pos
, end
- pos
, verbose
);
358 static int wpa_supplicant_ctrl_iface_bssid(struct wpa_supplicant
*wpa_s
,
363 struct wpa_ssid
*ssid
;
366 /* cmd: "<network id> <BSSID>" */
367 pos
= strchr(cmd
, ' ');
372 wpa_printf(MSG_DEBUG
, "CTRL_IFACE: id=%d bssid='%s'", id
, pos
);
373 if (hwaddr_aton(pos
, bssid
)) {
374 wpa_printf(MSG_DEBUG
,"CTRL_IFACE: invalid BSSID '%s'", pos
);
378 ssid
= wpa_config_get_network(wpa_s
->conf
, id
);
380 wpa_printf(MSG_DEBUG
, "CTRL_IFACE: Could not find SSID id=%d "
385 memcpy(ssid
->bssid
, bssid
, ETH_ALEN
);
387 memcmp(bssid
, "\x00\x00\x00\x00\x00\x00", ETH_ALEN
) != 0;
394 static int wpa_supplicant_ctrl_iface_list_networks(
395 struct wpa_supplicant
*wpa_s
, char *buf
, size_t buflen
)
398 struct wpa_ssid
*ssid
;
402 pos
+= snprintf(pos
, end
- pos
, "network id / ssid / bssid / flags\n");
404 ssid
= wpa_s
->conf
->ssid
;
406 pos
+= snprintf(pos
, end
- pos
, "%d\t%s",
408 wpa_ssid_txt(ssid
->ssid
, ssid
->ssid_len
));
409 if (ssid
->bssid_set
) {
410 pos
+= snprintf(pos
, end
- pos
, "\t" MACSTR
,
411 MAC2STR(ssid
->bssid
));
413 pos
+= snprintf(pos
, end
- pos
, "\tany");
415 pos
+= snprintf(pos
, end
- pos
, "\t%s%s",
416 ssid
== wpa_s
->current_ssid
? "[CURRENT]" : "",
417 ssid
->disabled
? "[DISABLED]" : "");
418 pos
+= snprintf(pos
, end
- pos
, "\n");
427 static char * wpa_supplicant_cipher_txt(char *pos
, char *end
, int cipher
)
430 pos
+= snprintf(pos
, end
- pos
, "-");
431 if (cipher
& WPA_CIPHER_NONE
) {
432 pos
+= snprintf(pos
, end
- pos
, "%sNONE", first
? "" : "+");
435 if (cipher
& WPA_CIPHER_WEP40
) {
436 pos
+= snprintf(pos
, end
- pos
, "%sWEP40", first
? "" : "+");
439 if (cipher
& WPA_CIPHER_WEP104
) {
440 pos
+= snprintf(pos
, end
- pos
, "%sWEP104", first
? "" : "+");
443 if (cipher
& WPA_CIPHER_TKIP
) {
444 pos
+= snprintf(pos
, end
- pos
, "%sTKIP", first
? "" : "+");
447 if (cipher
& WPA_CIPHER_CCMP
) {
448 pos
+= snprintf(pos
, end
- pos
, "%sCCMP", first
? "" : "+");
455 static char * wpa_supplicant_ie_txt(struct wpa_supplicant
*wpa_s
,
456 char *pos
, char *end
, const char *proto
,
457 const u8
*ie
, size_t ie_len
)
459 struct wpa_ie_data data
;
462 pos
+= snprintf(pos
, end
- pos
, "[%s-", proto
);
464 if (wpa_parse_wpa_ie(ie
, ie_len
, &data
) < 0) {
465 pos
+= snprintf(pos
, end
- pos
, "?]");
470 if (data
.key_mgmt
& WPA_KEY_MGMT_IEEE8021X
) {
471 pos
+= snprintf(pos
, end
- pos
, "%sEAP", first
? "" : "+");
474 if (data
.key_mgmt
& WPA_KEY_MGMT_PSK
) {
475 pos
+= snprintf(pos
, end
- pos
, "%sPSK", first
? "" : "+");
478 if (data
.key_mgmt
& WPA_KEY_MGMT_WPA_NONE
) {
479 pos
+= snprintf(pos
, end
- pos
, "%sNone", first
? "" : "+");
483 pos
= wpa_supplicant_cipher_txt(pos
, end
, data
.pairwise_cipher
);
485 if (data
.capabilities
& WPA_CAPABILITY_PREAUTH
)
486 pos
+= snprintf(pos
, end
- pos
, "-preauth");
488 pos
+= snprintf(pos
, end
- pos
, "]");
494 static int wpa_supplicant_ctrl_iface_scan_results(
495 struct wpa_supplicant
*wpa_s
, char *buf
, size_t buflen
)
498 struct wpa_scan_result
*res
;
501 if (wpa_s
->scan_results
== NULL
&&
502 wpa_supplicant_get_scan_results(wpa_s
) < 0)
507 pos
+= snprintf(pos
, end
- pos
, "bssid / frequency / signal level / "
510 for (i
= 0; i
< wpa_s
->num_scan_results
; i
++) {
511 res
= &wpa_s
->scan_results
[i
];
512 pos
+= snprintf(pos
, end
- pos
, MACSTR
"\t%d\t%d\t",
513 MAC2STR(res
->bssid
), res
->freq
, res
->level
);
514 if (res
->wpa_ie_len
) {
515 pos
= wpa_supplicant_ie_txt(wpa_s
, pos
, end
, "WPA",
519 if (res
->rsn_ie_len
) {
520 pos
= wpa_supplicant_ie_txt(wpa_s
, pos
, end
, "WPA2",
524 if (!res
->wpa_ie_len
&& !res
->rsn_ie_len
&&
525 res
->caps
& IEEE80211_CAP_PRIVACY
)
526 pos
+= snprintf(pos
, end
- pos
, "[WEP]");
527 if (res
->caps
& IEEE80211_CAP_IBSS
)
528 pos
+= snprintf(pos
, end
- pos
, "[IBSS]");
530 pos
+= snprintf(pos
, end
- pos
, "\t%s",
531 wpa_ssid_txt(res
->ssid
, res
->ssid_len
));
533 pos
+= snprintf(pos
, end
- pos
, "\n");
540 static int wpa_supplicant_ctrl_iface_select_network(
541 struct wpa_supplicant
*wpa_s
, char *cmd
)
544 struct wpa_ssid
*ssid
;
546 /* cmd: "<network id>" or "any" */
547 if (strcmp(cmd
, "any") == 0) {
548 wpa_printf(MSG_DEBUG
, "CTRL_IFACE: SELECT_NETWORK any");
549 ssid
= wpa_s
->conf
->ssid
;
554 wpa_s
->reassociate
= 1;
555 wpa_supplicant_req_scan(wpa_s
, 0, 0);
560 wpa_printf(MSG_DEBUG
, "CTRL_IFACE: SELECT_NETWORK id=%d", id
);
562 ssid
= wpa_config_get_network(wpa_s
->conf
, id
);
564 wpa_printf(MSG_DEBUG
, "CTRL_IFACE: Could not find network "
569 if (ssid
!= wpa_s
->current_ssid
&& wpa_s
->current_ssid
)
570 wpa_supplicant_disassociate(wpa_s
, REASON_DEAUTH_LEAVING
);
572 /* Mark all other networks disabled and trigger reassociation */
573 ssid
= wpa_s
->conf
->ssid
;
575 ssid
->disabled
= id
!= ssid
->id
;
578 wpa_s
->reassociate
= 1;
579 wpa_supplicant_req_scan(wpa_s
, 0, 0);
585 static int wpa_supplicant_ctrl_iface_enable_network(
586 struct wpa_supplicant
*wpa_s
, char *cmd
)
589 struct wpa_ssid
*ssid
;
591 /* cmd: "<network id>" */
593 wpa_printf(MSG_DEBUG
, "CTRL_IFACE: ENABLE_NETWORK id=%d", id
);
595 ssid
= wpa_config_get_network(wpa_s
->conf
, id
);
597 wpa_printf(MSG_DEBUG
, "CTRL_IFACE: Could not find network "
602 if (wpa_s
->current_ssid
== NULL
&& ssid
->disabled
) {
604 * Try to reassociate since there is no current configuration
605 * and a new network was made available. */
606 wpa_s
->reassociate
= 1;
607 wpa_supplicant_req_scan(wpa_s
, 0, 0);
615 static int wpa_supplicant_ctrl_iface_disable_network(
616 struct wpa_supplicant
*wpa_s
, char *cmd
)
619 struct wpa_ssid
*ssid
;
621 /* cmd: "<network id>" */
623 wpa_printf(MSG_DEBUG
, "CTRL_IFACE: DISABLE_NETWORK id=%d", id
);
625 ssid
= wpa_config_get_network(wpa_s
->conf
, id
);
627 wpa_printf(MSG_DEBUG
, "CTRL_IFACE: Could not find network "
632 if (ssid
== wpa_s
->current_ssid
)
633 wpa_supplicant_disassociate(wpa_s
, REASON_DEAUTH_LEAVING
);
640 static int wpa_supplicant_ctrl_iface_add_network(
641 struct wpa_supplicant
*wpa_s
, char *buf
, size_t buflen
)
643 struct wpa_ssid
*ssid
;
645 wpa_printf(MSG_DEBUG
, "CTRL_IFACE: ADD_NETWORK");
647 ssid
= wpa_config_add_network(wpa_s
->conf
);
651 wpa_config_set_network_defaults(ssid
);
653 return snprintf(buf
, buflen
, "%d\n", ssid
->id
);
657 static int wpa_supplicant_ctrl_iface_remove_network(
658 struct wpa_supplicant
*wpa_s
, char *cmd
)
661 struct wpa_ssid
*ssid
;
663 /* cmd: "<network id>" */
665 wpa_printf(MSG_DEBUG
, "CTRL_IFACE: REMOVE_NETWORK id=%d", id
);
667 ssid
= wpa_config_get_network(wpa_s
->conf
, id
);
669 wpa_config_remove_network(wpa_s
->conf
, id
) < 0) {
670 wpa_printf(MSG_DEBUG
, "CTRL_IFACE: Could not find network "
675 if (ssid
== wpa_s
->current_ssid
)
676 wpa_supplicant_disassociate(wpa_s
, REASON_DEAUTH_LEAVING
);
682 static int wpa_supplicant_ctrl_iface_set_network(
683 struct wpa_supplicant
*wpa_s
, char *cmd
)
686 struct wpa_ssid
*ssid
;
689 /* cmd: "<network id> <variable name> <value>" */
690 name
= strchr(cmd
, ' ');
695 value
= strchr(name
, ' ');
701 wpa_printf(MSG_DEBUG
, "CTRL_IFACE: SET_NETWORK id=%d name='%s'",
703 wpa_hexdump_ascii_key(MSG_DEBUG
, "CTRL_IFACE: value",
704 (u8
*) value
, strlen(value
));
706 ssid
= wpa_config_get_network(wpa_s
->conf
, id
);
708 wpa_printf(MSG_DEBUG
, "CTRL_IFACE: Could not find network "
713 if (wpa_config_set(ssid
, name
, value
, 0) < 0) {
714 wpa_printf(MSG_DEBUG
, "CTRL_IFACE: Failed to set network "
715 "variable '%s'", name
);
719 if ((strcmp(name
, "psk") == 0 && value
[0] == '"' && ssid
->ssid_len
) ||
720 (strcmp(name
, "ssid") == 0 && ssid
->passphrase
))
721 wpa_config_update_psk(ssid
);
727 static int wpa_supplicant_ctrl_iface_get_network(
728 struct wpa_supplicant
*wpa_s
, char *cmd
, char *buf
, size_t buflen
)
731 struct wpa_ssid
*ssid
;
734 /* cmd: "<network id> <variable name>" */
735 name
= strchr(cmd
, ' ');
741 wpa_printf(MSG_DEBUG
, "CTRL_IFACE: GET_NETWORK id=%d name='%s'",
744 ssid
= wpa_config_get_network(wpa_s
->conf
, id
);
746 wpa_printf(MSG_DEBUG
, "CTRL_IFACE: Could not find network "
751 value
= wpa_config_get(ssid
, name
);
753 wpa_printf(MSG_DEBUG
, "CTRL_IFACE: Failed to get network "
754 "variable '%s'", name
);
758 snprintf(buf
, buflen
, "%s", value
);
766 static int wpa_supplicant_ctrl_iface_save_config(struct wpa_supplicant
*wpa_s
)
770 if (!wpa_s
->conf
->update_config
) {
771 wpa_printf(MSG_DEBUG
, "CTRL_IFACE: SAVE_CONFIG - Not allowed "
772 "to update configuration (update_config=0)");
776 ret
= wpa_config_write(wpa_s
->confname
, wpa_s
->conf
);
778 wpa_printf(MSG_DEBUG
, "CTRL_IFACE: SAVE_CONFIG - Failed to "
779 "update configuration");
781 wpa_printf(MSG_DEBUG
, "CTRL_IFACE: SAVE_CONFIG - Configuration"
789 static int wpa_supplicant_ctrl_iface_get_capability(
790 struct wpa_supplicant
*wpa_s
, const char *field
, char *buf
,
793 struct wpa_driver_capa capa
;
797 wpa_printf(MSG_DEBUG
, "CTRL_IFACE: GET_CAPABILITY '%s'", field
);
799 if (strcmp(field
, "eap") == 0) {
800 return eap_get_names(buf
, buflen
);
803 res
= wpa_drv_get_capa(wpa_s
, &capa
);
808 if (strcmp(field
, "pairwise") == 0) {
810 return snprintf(buf
, buflen
, "CCMP TKIP NONE");
812 if (capa
.enc
& WPA_DRIVER_CAPA_ENC_CCMP
) {
813 pos
+= snprintf(pos
, end
- pos
, "%sCCMP",
818 if (capa
.enc
& WPA_DRIVER_CAPA_ENC_TKIP
) {
819 pos
+= snprintf(pos
, end
- pos
, "%sTKIP",
824 if (capa
.key_mgmt
& WPA_DRIVER_CAPA_KEY_MGMT_WPA_NONE
) {
825 pos
+= snprintf(pos
, end
- pos
, "%sNONE",
833 if (strcmp(field
, "group") == 0) {
835 return snprintf(buf
, buflen
, "CCMP TKIP WEP104 WEP40");
837 if (capa
.enc
& WPA_DRIVER_CAPA_ENC_CCMP
) {
838 pos
+= snprintf(pos
, end
- pos
, "%sCCMP",
843 if (capa
.enc
& WPA_DRIVER_CAPA_ENC_TKIP
) {
844 pos
+= snprintf(pos
, end
- pos
, "%sTKIP",
849 if (capa
.enc
& WPA_DRIVER_CAPA_ENC_WEP104
) {
850 pos
+= snprintf(pos
, end
- pos
, "%sWEP104",
855 if (capa
.enc
& WPA_DRIVER_CAPA_ENC_WEP40
) {
856 pos
+= snprintf(pos
, end
- pos
, "%sWEP40",
864 if (strcmp(field
, "key_mgmt") == 0) {
866 return snprintf(buf
, buflen
, "WPA-PSK WPA-EAP "
867 "IEEE8021X WPA-NONE NONE");
870 pos
+= snprintf(pos
, end
- pos
, "NONE IEEE8021X");
872 if (capa
.key_mgmt
& (WPA_DRIVER_CAPA_KEY_MGMT_WPA
|
873 WPA_DRIVER_CAPA_KEY_MGMT_WPA2
))
874 pos
+= snprintf(pos
, end
- pos
, " WPA-EAP");
876 if (capa
.key_mgmt
& (WPA_DRIVER_CAPA_KEY_MGMT_WPA_PSK
|
877 WPA_DRIVER_CAPA_KEY_MGMT_WPA2_PSK
))
878 pos
+= snprintf(pos
, end
- pos
, " WPA-PSK");
880 if (capa
.key_mgmt
& WPA_DRIVER_CAPA_KEY_MGMT_WPA_NONE
)
881 pos
+= snprintf(pos
, end
- pos
, " WPA-NONE");
886 if (strcmp(field
, "proto") == 0) {
888 return snprintf(buf
, buflen
, "RSN WPA");
890 if (capa
.key_mgmt
& (WPA_DRIVER_CAPA_KEY_MGMT_WPA2
|
891 WPA_DRIVER_CAPA_KEY_MGMT_WPA2_PSK
)) {
892 pos
+= snprintf(pos
, end
- pos
, "%sRSN",
897 if (capa
.key_mgmt
& (WPA_DRIVER_CAPA_KEY_MGMT_WPA
|
898 WPA_DRIVER_CAPA_KEY_MGMT_WPA_PSK
)) {
899 pos
+= snprintf(pos
, end
- pos
, "%sWPA",
907 if (strcmp(field
, "auth_alg") == 0) {
909 return snprintf(buf
, buflen
, "OPEN SHARED LEAP");
911 if (capa
.auth
& (WPA_DRIVER_AUTH_OPEN
)) {
912 pos
+= snprintf(pos
, end
- pos
, "%sOPEN",
917 if (capa
.auth
& (WPA_DRIVER_AUTH_SHARED
)) {
918 pos
+= snprintf(pos
, end
- pos
, "%sSHARED",
923 if (capa
.auth
& (WPA_DRIVER_AUTH_LEAP
)) {
924 pos
+= snprintf(pos
, end
- pos
, "%sLEAP",
932 wpa_printf(MSG_DEBUG
, "CTRL_IFACE: Unknown GET_CAPABILITY field '%s'",
939 static void wpa_supplicant_ctrl_iface_receive(int sock
, void *eloop_ctx
,
942 struct wpa_supplicant
*wpa_s
= eloop_ctx
;
945 CTRL_IFACE_SOCK from
;
946 socklen_t fromlen
= sizeof(from
);
948 const int reply_size
= 2048;
950 int new_attached
= 0, ctrl_rsp
= 0;
952 res
= recvfrom(sock
, buf
, sizeof(buf
) - 1, 0,
953 (struct sockaddr
*) &from
, &fromlen
);
955 perror("recvfrom(ctrl_iface)");
959 if (strncmp(buf
, WPA_CTRL_RSP
, strlen(WPA_CTRL_RSP
)) == 0 ||
960 strncmp(buf
, "SET_NETWORK ", 12) == 0) {
961 wpa_hexdump_ascii_key(MSG_DEBUG
, "RX ctrl_iface",
964 wpa_hexdump_ascii(MSG_DEBUG
, "RX ctrl_iface", (u8
*) buf
, res
);
967 reply
= malloc(reply_size
);
969 sendto(sock
, "FAIL\n", 5, 0, (struct sockaddr
*) &from
,
974 memcpy(reply
, "OK\n", 3);
977 if (strcmp(buf
, "PING") == 0) {
978 memcpy(reply
, "PONG\n", 5);
980 } else if (strcmp(buf
, "MIB") == 0) {
981 reply_len
= wpa_sm_get_mib(wpa_s
->wpa
, reply
, reply_size
);
982 if (reply_len
>= 0) {
983 res
= eapol_sm_get_mib(wpa_s
->eapol
, reply
+ reply_len
,
984 reply_size
- reply_len
);
990 } else if (strncmp(buf
, "STATUS", 6) == 0) {
991 reply_len
= wpa_supplicant_ctrl_iface_status(
992 wpa_s
, buf
+ 6, reply
, reply_size
);
993 } else if (strcmp(buf
, "PMKSA") == 0) {
994 reply_len
= pmksa_cache_list(wpa_s
->wpa
, reply
, reply_size
);
995 } else if (strncmp(buf
, "SET ", 4) == 0) {
996 if (wpa_supplicant_ctrl_iface_set(wpa_s
, buf
+ 4))
998 } else if (strcmp(buf
, "LOGON") == 0) {
999 eapol_sm_notify_logoff(wpa_s
->eapol
, FALSE
);
1000 } else if (strcmp(buf
, "LOGOFF") == 0) {
1001 eapol_sm_notify_logoff(wpa_s
->eapol
, TRUE
);
1002 } else if (strcmp(buf
, "REASSOCIATE") == 0) {
1003 wpa_s
->disconnected
= 0;
1004 wpa_s
->reassociate
= 1;
1005 wpa_supplicant_req_scan(wpa_s
, 0, 0);
1006 } else if (strncmp(buf
, "PREAUTH ", 8) == 0) {
1007 if (wpa_supplicant_ctrl_iface_preauth(wpa_s
, buf
+ 8))
1009 } else if (strcmp(buf
, "ATTACH") == 0) {
1010 if (wpa_supplicant_ctrl_iface_attach(wpa_s
, &from
, fromlen
))
1014 } else if (strcmp(buf
, "DETACH") == 0) {
1015 if (wpa_supplicant_ctrl_iface_detach(wpa_s
, &from
, fromlen
))
1017 } else if (strncmp(buf
, "LEVEL ", 6) == 0) {
1018 if (wpa_supplicant_ctrl_iface_level(wpa_s
, &from
, fromlen
,
1021 } else if (strncmp(buf
, WPA_CTRL_RSP
, strlen(WPA_CTRL_RSP
)) == 0) {
1022 if (wpa_supplicant_ctrl_iface_ctrl_rsp(
1023 wpa_s
, buf
+ strlen(WPA_CTRL_RSP
)))
1027 } else if (strcmp(buf
, "RECONFIGURE") == 0) {
1028 if (wpa_supplicant_reload_configuration(wpa_s
))
1030 } else if (strcmp(buf
, "TERMINATE") == 0) {
1032 } else if (strncmp(buf
, "BSSID ", 6) == 0) {
1033 if (wpa_supplicant_ctrl_iface_bssid(wpa_s
, buf
+ 6))
1035 } else if (strcmp(buf
, "LIST_NETWORKS") == 0) {
1036 reply_len
= wpa_supplicant_ctrl_iface_list_networks(
1037 wpa_s
, reply
, reply_size
);
1038 } else if (strcmp(buf
, "DISCONNECT") == 0) {
1039 wpa_s
->disconnected
= 1;
1040 wpa_supplicant_disassociate(wpa_s
, REASON_DEAUTH_LEAVING
);
1041 } else if (strcmp(buf
, "SCAN") == 0) {
1042 wpa_s
->scan_req
= 2;
1043 wpa_supplicant_req_scan(wpa_s
, 0, 0);
1044 } else if (strcmp(buf
, "SCAN_RESULTS") == 0) {
1045 reply_len
= wpa_supplicant_ctrl_iface_scan_results(
1046 wpa_s
, reply
, reply_size
);
1047 } else if (strncmp(buf
, "SELECT_NETWORK ", 15) == 0) {
1048 if (wpa_supplicant_ctrl_iface_select_network(wpa_s
, buf
+ 15))
1050 } else if (strncmp(buf
, "ENABLE_NETWORK ", 15) == 0) {
1051 if (wpa_supplicant_ctrl_iface_enable_network(wpa_s
, buf
+ 15))
1053 } else if (strncmp(buf
, "DISABLE_NETWORK ", 16) == 0) {
1054 if (wpa_supplicant_ctrl_iface_disable_network(wpa_s
, buf
+ 16))
1056 } else if (strcmp(buf
, "ADD_NETWORK") == 0) {
1057 reply_len
= wpa_supplicant_ctrl_iface_add_network(
1058 wpa_s
, reply
, reply_size
);
1059 } else if (strncmp(buf
, "REMOVE_NETWORK ", 15) == 0) {
1060 if (wpa_supplicant_ctrl_iface_remove_network(wpa_s
, buf
+ 15))
1062 } else if (strncmp(buf
, "SET_NETWORK ", 12) == 0) {
1063 if (wpa_supplicant_ctrl_iface_set_network(wpa_s
, buf
+ 12))
1065 } else if (strncmp(buf
, "GET_NETWORK ", 12) == 0) {
1066 reply_len
= wpa_supplicant_ctrl_iface_get_network(
1067 wpa_s
, buf
+ 12, reply
, reply_size
);
1068 } else if (strcmp(buf
, "SAVE_CONFIG") == 0) {
1069 if (wpa_supplicant_ctrl_iface_save_config(wpa_s
))
1071 } else if (strncmp(buf
, "GET_CAPABILITY ", 15) == 0) {
1072 reply_len
= wpa_supplicant_ctrl_iface_get_capability(
1073 wpa_s
, buf
+ 15, reply
, reply_size
);
1075 memcpy(reply
, "UNKNOWN COMMAND\n", 16);
1079 if (reply_len
< 0) {
1080 memcpy(reply
, "FAIL\n", 5);
1083 sendto(sock
, reply
, reply_len
, 0, (struct sockaddr
*) &from
, fromlen
);
1087 eapol_sm_notify_ctrl_attached(wpa_s
->eapol
);
1089 eapol_sm_notify_ctrl_response(wpa_s
->eapol
);
1093 #ifndef CONFIG_CTRL_IFACE_UDP
1094 static char * wpa_supplicant_ctrl_iface_path(struct wpa_supplicant
*wpa_s
)
1099 if (wpa_s
->conf
->ctrl_interface
== NULL
)
1102 len
= strlen(wpa_s
->conf
->ctrl_interface
) + strlen(wpa_s
->ifname
) + 2;
1107 snprintf(buf
, len
, "%s/%s",
1108 wpa_s
->conf
->ctrl_interface
, wpa_s
->ifname
);
1111 /* Windows/WinPcap uses interface names that are not suitable
1112 * as a file name - convert invalid chars to underscores */
1120 #endif /* __CYGWIN__ */
1123 #endif /* CONFIG_CTRL_IFACE_UDP */
1127 * wpa_supplicant_ctrl_iface_init - Initialize control interface
1128 * @wpa_s: Pointer to wpa_supplicant data
1129 * Returns: 0 on success, -1 on failure
1131 * Initialize the control interface and start receiving commands from external
1134 int wpa_supplicant_ctrl_iface_init(struct wpa_supplicant
*wpa_s
)
1136 CTRL_IFACE_SOCK addr
;
1138 #ifndef CONFIG_CTRL_IFACE_UDP
1140 #endif /* CONFIG_CTRL_IFACE_UDP */
1142 wpa_s
->ctrl_sock
= -1;
1144 if (wpa_s
->conf
->ctrl_interface
== NULL
)
1147 #ifdef CONFIG_CTRL_IFACE_UDP
1148 s
= socket(PF_INET
, SOCK_DGRAM
, 0);
1150 perror("socket(PF_INET)");
1154 memset(&addr
, 0, sizeof(addr
));
1155 addr
.sin_family
= AF_INET
;
1156 addr
.sin_addr
.s_addr
= htonl((127 << 24) | 1);
1157 addr
.sin_port
= htons(WPA_CTRL_IFACE_PORT
);
1158 if (bind(s
, (struct sockaddr
*) &addr
, sizeof(addr
)) < 0) {
1159 perror("bind(AF_INET)");
1162 #else /* CONFIG_CTRL_IFACE_UDP */
1163 if (mkdir(wpa_s
->conf
->ctrl_interface
, S_IRWXU
| S_IRWXG
) < 0) {
1164 if (errno
== EEXIST
) {
1165 wpa_printf(MSG_DEBUG
, "Using existing control "
1166 "interface directory.");
1168 perror("mkdir[ctrl_interface]");
1173 if (wpa_s
->conf
->ctrl_interface_gid_set
&&
1174 chown(wpa_s
->conf
->ctrl_interface
, 0,
1175 wpa_s
->conf
->ctrl_interface_gid
) < 0) {
1176 perror("chown[ctrl_interface]");
1180 if (strlen(wpa_s
->conf
->ctrl_interface
) + 1 + strlen(wpa_s
->ifname
) >=
1181 sizeof(addr
.sun_path
))
1184 s
= socket(PF_UNIX
, SOCK_DGRAM
, 0);
1186 perror("socket(PF_UNIX)");
1190 memset(&addr
, 0, sizeof(addr
));
1191 addr
.sun_family
= AF_UNIX
;
1192 fname
= wpa_supplicant_ctrl_iface_path(wpa_s
);
1195 strncpy(addr
.sun_path
, fname
, sizeof(addr
.sun_path
));
1196 if (bind(s
, (struct sockaddr
*) &addr
, sizeof(addr
)) < 0) {
1197 perror("bind(PF_UNIX)");
1198 if (connect(s
, (struct sockaddr
*) &addr
, sizeof(addr
)) < 0) {
1199 wpa_printf(MSG_DEBUG
, "ctrl_iface exists, but does not"
1200 " allow connections - assuming it was left"
1201 "over from forced program termination");
1202 if (unlink(fname
) < 0) {
1203 perror("unlink[ctrl_iface]");
1204 wpa_printf(MSG_ERROR
, "Could not unlink "
1205 "existing ctrl_iface socket '%s'",
1209 if (bind(s
, (struct sockaddr
*) &addr
, sizeof(addr
)) <
1211 perror("bind(PF_UNIX)");
1214 wpa_printf(MSG_DEBUG
, "Successfully replaced leftover "
1215 "ctrl_iface socket '%s'", fname
);
1217 wpa_printf(MSG_INFO
, "ctrl_iface exists and seems to "
1218 "be in use - cannot override it");
1219 wpa_printf(MSG_INFO
, "Delete '%s' manually if it is "
1220 "not used anymore", fname
);
1227 if (wpa_s
->conf
->ctrl_interface_gid_set
&&
1228 chown(fname
, 0, wpa_s
->conf
->ctrl_interface_gid
) < 0) {
1229 perror("chown[ctrl_interface/ifname]");
1233 if (chmod(fname
, S_IRWXU
| S_IRWXG
) < 0) {
1234 perror("chmod[ctrl_interface/ifname]");
1238 #endif /* CONFIG_CTRL_IFACE_UDP */
1240 wpa_s
->ctrl_sock
= s
;
1241 eloop_register_read_sock(s
, wpa_supplicant_ctrl_iface_receive
, wpa_s
,
1249 #ifndef CONFIG_CTRL_IFACE_UDP
1254 #endif /* CONFIG_CTRL_IFACE_UDP */
1260 * wpa_supplicant_ctrl_iface_deinit - Deinitialize control interface
1261 * @wpa_s: Pointer to wpa_supplicant data
1263 * Deinitialize the control interface that was initialized with
1264 * wpa_supplicant_ctrl_iface_init().
1266 void wpa_supplicant_ctrl_iface_deinit(struct wpa_supplicant
*wpa_s
)
1268 struct wpa_ctrl_dst
*dst
, *prev
;
1270 if (wpa_s
->ctrl_sock
> -1) {
1271 #ifndef CONFIG_CTRL_IFACE_UDP
1273 #endif /* CONFIG_CTRL_IFACE_UDP */
1274 eloop_unregister_read_sock(wpa_s
->ctrl_sock
);
1275 if (wpa_s
->ctrl_dst
) {
1277 * Wait a second before closing the control socket if
1278 * there are any attached monitors in order to allow
1279 * them to receive any pending messages.
1281 wpa_printf(MSG_DEBUG
, "CTRL_IFACE wait for attached "
1282 "monitors to receive messages");
1285 close(wpa_s
->ctrl_sock
);
1286 wpa_s
->ctrl_sock
= -1;
1287 #ifndef CONFIG_CTRL_IFACE_UDP
1288 fname
= wpa_supplicant_ctrl_iface_path(wpa_s
);
1293 if (rmdir(wpa_s
->conf
->ctrl_interface
) < 0) {
1294 if (errno
== ENOTEMPTY
) {
1295 wpa_printf(MSG_DEBUG
, "Control interface "
1296 "directory not empty - leaving it "
1299 perror("rmdir[ctrl_interface]");
1302 #endif /* CONFIG_CTRL_IFACE_UDP */
1305 dst
= wpa_s
->ctrl_dst
;
1315 * wpa_supplicant_ctrl_iface_send - Send a control interface packet to monitors
1316 * @wpa_s: Pointer to wpa_supplicant data
1317 * @level: Priority level of the message
1318 * @buf: Message data
1319 * @len: Message length
1321 * Send a packet to all monitor programs attached to the control interface.
1323 void wpa_supplicant_ctrl_iface_send(struct wpa_supplicant
*wpa_s
, int level
,
1324 char *buf
, size_t len
)
1326 struct wpa_ctrl_dst
*dst
, *next
;
1329 #ifdef CONFIG_CTRL_IFACE_UDP
1333 dst
= wpa_s
->ctrl_dst
;
1334 if (wpa_s
->ctrl_sock
< 0 || dst
== NULL
)
1337 snprintf(levelstr
, sizeof(levelstr
), "<%d>", level
);
1339 llen
= strlen(levelstr
);
1340 sbuf
= malloc(llen
+ len
);
1344 memcpy(sbuf
, levelstr
, llen
);
1345 memcpy(sbuf
+ llen
, buf
, len
);
1350 if (level
>= dst
->debug_level
) {
1351 wpa_printf(MSG_DEBUG
, "CTRL_IFACE monitor send %s:%d",
1352 inet_ntoa(dst
->addr
.sin_addr
),
1353 ntohs(dst
->addr
.sin_port
));
1354 if (sendto(wpa_s
->ctrl_sock
, sbuf
, llen
+ len
, 0,
1355 (struct sockaddr
*) &dst
->addr
,
1356 sizeof(dst
->addr
)) < 0) {
1357 perror("sendto(CTRL_IFACE monitor)");
1359 if (dst
->errors
> 10) {
1360 wpa_supplicant_ctrl_iface_detach(
1371 #else /* CONFIG_CTRL_IFACE_UDP */
1375 dst
= wpa_s
->ctrl_dst
;
1376 if (wpa_s
->ctrl_sock
< 0 || dst
== NULL
)
1379 snprintf(levelstr
, sizeof(levelstr
), "<%d>", level
);
1380 io
[0].iov_base
= levelstr
;
1381 io
[0].iov_len
= strlen(levelstr
);
1382 io
[1].iov_base
= buf
;
1383 io
[1].iov_len
= len
;
1384 memset(&msg
, 0, sizeof(msg
));
1391 if (level
>= dst
->debug_level
) {
1392 wpa_hexdump(MSG_DEBUG
, "CTRL_IFACE monitor send",
1393 (u8
*) dst
->addr
.sun_path
, dst
->addrlen
-
1394 sizeof(dst
->addr
.sun_family
));
1395 msg
.msg_name
= &dst
->addr
;
1396 msg
.msg_namelen
= dst
->addrlen
;
1397 if (sendmsg(wpa_s
->ctrl_sock
, &msg
, 0) < 0) {
1398 perror("sendmsg(CTRL_IFACE monitor)");
1400 if (dst
->errors
> 10) {
1401 wpa_supplicant_ctrl_iface_detach(
1411 #endif /* CONFIG_CTRL_IFACE_UDP */
1416 * wpa_supplicant_ctrl_iface_wait - Wait for ctrl_iface monitor
1417 * @wpa_s: Pointer to wpa_supplicant data
1419 * Wait until the first message from an external program using the control
1420 * interface is received. This function can be used to delay normal startup
1421 * processing to allow control interface programs to attach with
1422 * %wpa_supplicant before normal operations are started.
1424 void wpa_supplicant_ctrl_iface_wait(struct wpa_supplicant
*wpa_s
)
1428 if (wpa_s
->ctrl_sock
< 0)
1431 wpa_printf(MSG_DEBUG
, "CTRL_IFACE - %s - wait for monitor",
1435 FD_SET(wpa_s
->ctrl_sock
, &rfds
);
1436 select(wpa_s
->ctrl_sock
+ 1, &rfds
, NULL
, NULL
, NULL
);
1440 static int wpa_supplicant_global_iface_add(struct wpa_global
*global
,
1443 struct wpa_interface iface
;
1447 * <ifname>TAB<confname>TAB<driver>TAB<ctrl_interface>TAB<driver_param>
1449 wpa_printf(MSG_DEBUG
, "CTRL_IFACE GLOBAL INTERFACE_ADD '%s'", cmd
);
1451 memset(&iface
, 0, sizeof(iface
));
1454 iface
.ifname
= pos
= cmd
;
1455 pos
= strchr(pos
, '\t');
1458 if (iface
.ifname
[0] == '\0')
1463 iface
.confname
= pos
;
1464 pos
= strchr(pos
, '\t');
1467 if (iface
.confname
[0] == '\0')
1468 iface
.confname
= NULL
;
1473 pos
= strchr(pos
, '\t');
1476 if (iface
.driver
[0] == '\0')
1477 iface
.driver
= NULL
;
1481 iface
.ctrl_interface
= pos
;
1482 pos
= strchr(pos
, '\t');
1485 if (iface
.ctrl_interface
[0] == '\0')
1486 iface
.ctrl_interface
= NULL
;
1490 iface
.driver_param
= pos
;
1491 pos
= strchr(pos
, '\t');
1494 if (iface
.driver_param
[0] == '\0')
1495 iface
.driver_param
= NULL
;
1500 if (wpa_supplicant_get_iface(global
, iface
.ifname
))
1503 return wpa_supplicant_add_iface(global
, &iface
) ? 0 : -1;
1507 static int wpa_supplicant_global_iface_remove(struct wpa_global
*global
,
1510 struct wpa_supplicant
*wpa_s
;
1512 wpa_printf(MSG_DEBUG
, "CTRL_IFACE GLOBAL INTERFACE_REMOVE '%s'", cmd
);
1514 wpa_s
= wpa_supplicant_get_iface(global
, cmd
);
1517 return wpa_supplicant_remove_iface(global
, wpa_s
);
1521 static void wpa_supplicant_global_ctrl_iface_receive(int sock
, void *eloop_ctx
,
1524 struct wpa_global
*global
= eloop_ctx
;
1527 CTRL_IFACE_SOCK from
;
1528 socklen_t fromlen
= sizeof(from
);
1530 const int reply_size
= 2048;
1533 res
= recvfrom(sock
, buf
, sizeof(buf
) - 1, 0,
1534 (struct sockaddr
*) &from
, &fromlen
);
1536 perror("recvfrom(ctrl_iface)");
1540 wpa_hexdump_ascii(MSG_DEBUG
, "RX global ctrl_iface", (u8
*) buf
, res
);
1542 reply
= malloc(reply_size
);
1543 if (reply
== NULL
) {
1544 sendto(sock
, "FAIL\n", 5, 0, (struct sockaddr
*) &from
,
1549 memcpy(reply
, "OK\n", 3);
1552 if (strcmp(buf
, "PING") == 0) {
1553 memcpy(reply
, "PONG\n", 5);
1555 } else if (strncmp(buf
, "INTERFACE_ADD ", 14) == 0) {
1556 if (wpa_supplicant_global_iface_add(global
, buf
+ 14))
1558 } else if (strncmp(buf
, "INTERFACE_REMOVE ", 17) == 0) {
1559 if (wpa_supplicant_global_iface_remove(global
, buf
+ 17))
1562 memcpy(reply
, "UNKNOWN COMMAND\n", 16);
1566 if (reply_len
< 0) {
1567 memcpy(reply
, "FAIL\n", 5);
1570 sendto(sock
, reply
, reply_len
, 0, (struct sockaddr
*) &from
, fromlen
);
1576 * wpa_supplicant_global_ctrl_iface_init - Initialize global control interface
1577 * @global: Pointer to global data from wpa_supplicant_init()
1578 * Returns: 0 on success, -1 on failure
1580 * Initialize the global control interface and start receiving commands from
1581 * external programs.
1583 int wpa_supplicant_global_ctrl_iface_init(struct wpa_global
*global
)
1585 CTRL_IFACE_SOCK addr
;
1588 global
->ctrl_sock
= -1;
1590 if (global
->params
.ctrl_interface
== NULL
)
1593 wpa_printf(MSG_DEBUG
, "Global control interface '%s'",
1594 global
->params
.ctrl_interface
);
1596 #ifdef CONFIG_CTRL_IFACE_UDP
1597 s
= socket(PF_INET
, SOCK_DGRAM
, 0);
1599 perror("socket(PF_INET)");
1603 memset(&addr
, 0, sizeof(addr
));
1604 addr
.sin_family
= AF_INET
;
1605 addr
.sin_addr
.s_addr
= htonl((127 << 24) | 1);
1606 addr
.sin_port
= htons(WPA_GLOBAL_CTRL_IFACE_PORT
);
1607 if (bind(s
, (struct sockaddr
*) &addr
, sizeof(addr
)) < 0) {
1608 perror("bind(AF_INET)");
1611 #else /* CONFIG_CTRL_IFACE_UDP */
1612 s
= socket(PF_UNIX
, SOCK_DGRAM
, 0);
1614 perror("socket(PF_UNIX)");
1618 memset(&addr
, 0, sizeof(addr
));
1619 addr
.sun_family
= AF_UNIX
;
1620 strncpy(addr
.sun_path
, global
->params
.ctrl_interface
,
1621 sizeof(addr
.sun_path
));
1622 if (bind(s
, (struct sockaddr
*) &addr
, sizeof(addr
)) < 0) {
1623 perror("bind(PF_UNIX)");
1624 if (connect(s
, (struct sockaddr
*) &addr
, sizeof(addr
)) < 0) {
1625 wpa_printf(MSG_DEBUG
, "ctrl_iface exists, but does not"
1626 " allow connections - assuming it was left"
1627 "over from forced program termination");
1628 if (unlink(global
->params
.ctrl_interface
) < 0) {
1629 perror("unlink[ctrl_iface]");
1630 wpa_printf(MSG_ERROR
, "Could not unlink "
1631 "existing ctrl_iface socket '%s'",
1632 global
->params
.ctrl_interface
);
1635 if (bind(s
, (struct sockaddr
*) &addr
, sizeof(addr
)) <
1637 perror("bind(PF_UNIX)");
1640 wpa_printf(MSG_DEBUG
, "Successfully replaced leftover "
1641 "ctrl_iface socket '%s'",
1642 global
->params
.ctrl_interface
);
1644 wpa_printf(MSG_INFO
, "ctrl_iface exists and seems to "
1645 "be in use - cannot override it");
1646 wpa_printf(MSG_INFO
, "Delete '%s' manually if it is "
1648 global
->params
.ctrl_interface
);
1652 #endif /* CONFIG_CTRL_IFACE_UDP */
1654 global
->ctrl_sock
= s
;
1655 eloop_register_read_sock(s
, wpa_supplicant_global_ctrl_iface_receive
,
1668 * wpa_supplicant_global_ctrl_iface_deinit - Deinitialize global ctrl interface
1669 * @global: Pointer to global data from wpa_supplicant_init()
1671 * Deinitialize the global control interface that was initialized with
1672 * wpa_supplicant_global_ctrl_iface_init().
1674 void wpa_supplicant_global_ctrl_iface_deinit(struct wpa_global
*global
)
1676 if (global
->ctrl_sock
< 0)
1679 eloop_unregister_read_sock(global
->ctrl_sock
);
1680 close(global
->ctrl_sock
);
1681 global
->ctrl_sock
= -1;
1683 #ifndef CONFIG_CTRL_IFACE_UDP
1684 if (global
->params
.ctrl_interface
)
1685 unlink(global
->params
.ctrl_interface
);
1686 #endif /* CONFIG_CTRL_IFACE_UDP */