2 * wpa_supplicant/hostapd control interface library
3 * Copyright (c) 2004-2006, Jouni Malinen <j@w1.fi>
5 * This software may be distributed under the terms of the BSD license.
6 * See README for more details.
16 /* wpa_supplicant control interface - fixed message prefixes */
18 /** Interactive request for identity/password/pin */
19 #define WPA_CTRL_REQ "CTRL-REQ-"
21 /** Response to identity/password/pin request */
22 #define WPA_CTRL_RSP "CTRL-RSP-"
24 /* Event messages with fixed prefix */
25 /** Authentication completed successfully and data connection enabled */
26 #define WPA_EVENT_CONNECTED "CTRL-EVENT-CONNECTED "
27 /** Disconnected, data connection is not available */
28 #define WPA_EVENT_DISCONNECTED "CTRL-EVENT-DISCONNECTED "
29 /** Association rejected during connection attempt */
30 #define WPA_EVENT_ASSOC_REJECT "CTRL-EVENT-ASSOC-REJECT "
31 /** wpa_supplicant is exiting */
32 #define WPA_EVENT_TERMINATING "CTRL-EVENT-TERMINATING "
33 /** Password change was completed successfully */
34 #define WPA_EVENT_PASSWORD_CHANGED "CTRL-EVENT-PASSWORD-CHANGED "
35 /** EAP-Request/Notification received */
36 #define WPA_EVENT_EAP_NOTIFICATION "CTRL-EVENT-EAP-NOTIFICATION "
37 /** EAP authentication started (EAP-Request/Identity received) */
38 #define WPA_EVENT_EAP_STARTED "CTRL-EVENT-EAP-STARTED "
39 /** EAP method proposed by the server */
40 #define WPA_EVENT_EAP_PROPOSED_METHOD "CTRL-EVENT-EAP-PROPOSED-METHOD "
41 /** EAP method selected */
42 #define WPA_EVENT_EAP_METHOD "CTRL-EVENT-EAP-METHOD "
43 /** EAP peer certificate from TLS */
44 #define WPA_EVENT_EAP_PEER_CERT "CTRL-EVENT-EAP-PEER-CERT "
45 /** EAP TLS certificate chain validation error */
46 #define WPA_EVENT_EAP_TLS_CERT_ERROR "CTRL-EVENT-EAP-TLS-CERT-ERROR "
48 #define WPA_EVENT_EAP_STATUS "CTRL-EVENT-EAP-STATUS "
49 /** EAP authentication completed successfully */
50 #define WPA_EVENT_EAP_SUCCESS "CTRL-EVENT-EAP-SUCCESS "
51 /** EAP authentication failed (EAP-Failure received) */
52 #define WPA_EVENT_EAP_FAILURE "CTRL-EVENT-EAP-FAILURE "
53 /** Network block temporarily disabled (e.g., due to authentication failure) */
54 #define WPA_EVENT_TEMP_DISABLED "CTRL-EVENT-SSID-TEMP-DISABLED "
55 /** Temporarily disabled network block re-enabled */
56 #define WPA_EVENT_REENABLED "CTRL-EVENT-SSID-REENABLED "
57 /** New scan results available */
58 #define WPA_EVENT_SCAN_RESULTS "CTRL-EVENT-SCAN-RESULTS "
59 /** wpa_supplicant state change */
60 #define WPA_EVENT_STATE_CHANGE "CTRL-EVENT-STATE-CHANGE "
61 /** A new BSS entry was added (followed by BSS entry id and BSSID) */
62 #define WPA_EVENT_BSS_ADDED "CTRL-EVENT-BSS-ADDED "
63 /** A BSS entry was removed (followed by BSS entry id and BSSID) */
64 #define WPA_EVENT_BSS_REMOVED "CTRL-EVENT-BSS-REMOVED "
66 /** WPS overlap detected in PBC mode */
67 #define WPS_EVENT_OVERLAP "WPS-OVERLAP-DETECTED "
68 /** Available WPS AP with active PBC found in scan results */
69 #define WPS_EVENT_AP_AVAILABLE_PBC "WPS-AP-AVAILABLE-PBC "
70 /** Available WPS AP with our address as authorized in scan results */
71 #define WPS_EVENT_AP_AVAILABLE_AUTH "WPS-AP-AVAILABLE-AUTH "
72 /** Available WPS AP with recently selected PIN registrar found in scan results
74 #define WPS_EVENT_AP_AVAILABLE_PIN "WPS-AP-AVAILABLE-PIN "
75 /** Available WPS AP found in scan results */
76 #define WPS_EVENT_AP_AVAILABLE "WPS-AP-AVAILABLE "
77 /** A new credential received */
78 #define WPS_EVENT_CRED_RECEIVED "WPS-CRED-RECEIVED "
80 #define WPS_EVENT_M2D "WPS-M2D "
81 /** WPS registration failed after M2/M2D */
82 #define WPS_EVENT_FAIL "WPS-FAIL "
83 /** WPS registration completed successfully */
84 #define WPS_EVENT_SUCCESS "WPS-SUCCESS "
85 /** WPS enrollment attempt timed out and was terminated */
86 #define WPS_EVENT_TIMEOUT "WPS-TIMEOUT "
87 /* PBC mode was activated */
88 #define WPS_EVENT_ACTIVE "WPS-PBC-ACTIVE "
89 /* PBC mode was disabled */
90 #define WPS_EVENT_DISABLE "WPS-PBC-DISABLE "
92 #define WPS_EVENT_ENROLLEE_SEEN "WPS-ENROLLEE-SEEN "
94 #define WPS_EVENT_OPEN_NETWORK "WPS-OPEN-NETWORK "
97 #define WPS_EVENT_ER_AP_ADD "WPS-ER-AP-ADD "
98 #define WPS_EVENT_ER_AP_REMOVE "WPS-ER-AP-REMOVE "
99 #define WPS_EVENT_ER_ENROLLEE_ADD "WPS-ER-ENROLLEE-ADD "
100 #define WPS_EVENT_ER_ENROLLEE_REMOVE "WPS-ER-ENROLLEE-REMOVE "
101 #define WPS_EVENT_ER_AP_SETTINGS "WPS-ER-AP-SETTINGS "
102 #define WPS_EVENT_ER_SET_SEL_REG "WPS-ER-AP-SET-SEL-REG "
104 /** P2P device found */
105 #define P2P_EVENT_DEVICE_FOUND "P2P-DEVICE-FOUND "
107 /** P2P device lost */
108 #define P2P_EVENT_DEVICE_LOST "P2P-DEVICE-LOST "
110 /** A P2P device requested GO negotiation, but we were not ready to start the
112 #define P2P_EVENT_GO_NEG_REQUEST "P2P-GO-NEG-REQUEST "
113 #define P2P_EVENT_GO_NEG_SUCCESS "P2P-GO-NEG-SUCCESS "
114 #define P2P_EVENT_GO_NEG_FAILURE "P2P-GO-NEG-FAILURE "
115 #define P2P_EVENT_GROUP_FORMATION_SUCCESS "P2P-GROUP-FORMATION-SUCCESS "
116 #define P2P_EVENT_GROUP_FORMATION_FAILURE "P2P-GROUP-FORMATION-FAILURE "
117 #define P2P_EVENT_GROUP_STARTED "P2P-GROUP-STARTED "
118 #define P2P_EVENT_GROUP_REMOVED "P2P-GROUP-REMOVED "
119 #define P2P_EVENT_CROSS_CONNECT_ENABLE "P2P-CROSS-CONNECT-ENABLE "
120 #define P2P_EVENT_CROSS_CONNECT_DISABLE "P2P-CROSS-CONNECT-DISABLE "
121 /* parameters: <peer address> <PIN> */
122 #define P2P_EVENT_PROV_DISC_SHOW_PIN "P2P-PROV-DISC-SHOW-PIN "
123 /* parameters: <peer address> */
124 #define P2P_EVENT_PROV_DISC_ENTER_PIN "P2P-PROV-DISC-ENTER-PIN "
125 /* parameters: <peer address> */
126 #define P2P_EVENT_PROV_DISC_PBC_REQ "P2P-PROV-DISC-PBC-REQ "
127 /* parameters: <peer address> */
128 #define P2P_EVENT_PROV_DISC_PBC_RESP "P2P-PROV-DISC-PBC-RESP "
129 /* parameters: <peer address> <status> */
130 #define P2P_EVENT_PROV_DISC_FAILURE "P2P-PROV-DISC-FAILURE"
131 /* parameters: <freq> <src addr> <dialog token> <update indicator> <TLVs> */
132 #define P2P_EVENT_SERV_DISC_REQ "P2P-SERV-DISC-REQ "
133 /* parameters: <src addr> <update indicator> <TLVs> */
134 #define P2P_EVENT_SERV_DISC_RESP "P2P-SERV-DISC-RESP "
135 #define P2P_EVENT_INVITATION_RECEIVED "P2P-INVITATION-RECEIVED "
136 #define P2P_EVENT_INVITATION_RESULT "P2P-INVITATION-RESULT "
137 #define P2P_EVENT_FIND_STOPPED "P2P-FIND-STOPPED "
139 /* parameters: <PMF enabled> <timeout in ms> <Session Information URL> */
140 #define ESS_DISASSOC_IMMINENT "ESS-DISASSOC-IMMINENT "
142 #define INTERWORKING_AP "INTERWORKING-AP "
143 #define INTERWORKING_NO_MATCH "INTERWORKING-NO-MATCH "
145 #define GAS_RESPONSE_INFO "GAS-RESPONSE-INFO "
147 /* hostapd control interface - fixed message prefixes */
148 #define WPS_EVENT_PIN_NEEDED "WPS-PIN-NEEDED "
149 #define WPS_EVENT_NEW_AP_SETTINGS "WPS-NEW-AP-SETTINGS "
150 #define WPS_EVENT_REG_SUCCESS "WPS-REG-SUCCESS "
151 #define WPS_EVENT_AP_SETUP_LOCKED "WPS-AP-SETUP-LOCKED "
152 #define WPS_EVENT_AP_SETUP_UNLOCKED "WPS-AP-SETUP-UNLOCKED "
153 #define WPS_EVENT_AP_PIN_ENABLED "WPS-AP-PIN-ENABLED "
154 #define WPS_EVENT_AP_PIN_DISABLED "WPS-AP-PIN-DISABLED "
155 #define AP_STA_CONNECTED "AP-STA-CONNECTED "
156 #define AP_STA_DISCONNECTED "AP-STA-DISCONNECTED "
158 #define AP_REJECTED_MAX_STA "AP-REJECTED-MAX-STA "
159 #define AP_REJECTED_BLOCKED_STA "AP-REJECTED-BLOCKED-STA "
161 /* BSS command information masks */
163 #define WPA_BSS_MASK_ALL 0xFFFDFFFF
164 #define WPA_BSS_MASK_ID BIT(0)
165 #define WPA_BSS_MASK_BSSID BIT(1)
166 #define WPA_BSS_MASK_FREQ BIT(2)
167 #define WPA_BSS_MASK_BEACON_INT BIT(3)
168 #define WPA_BSS_MASK_CAPABILITIES BIT(4)
169 #define WPA_BSS_MASK_QUAL BIT(5)
170 #define WPA_BSS_MASK_NOISE BIT(6)
171 #define WPA_BSS_MASK_LEVEL BIT(7)
172 #define WPA_BSS_MASK_TSF BIT(8)
173 #define WPA_BSS_MASK_AGE BIT(9)
174 #define WPA_BSS_MASK_IE BIT(10)
175 #define WPA_BSS_MASK_FLAGS BIT(11)
176 #define WPA_BSS_MASK_SSID BIT(12)
177 #define WPA_BSS_MASK_WPS_SCAN BIT(13)
178 #define WPA_BSS_MASK_P2P_SCAN BIT(14)
179 #define WPA_BSS_MASK_INTERNETW BIT(15)
180 #define WPA_BSS_MASK_WIFI_DISPLAY BIT(16)
181 #define WPA_BSS_MASK_DELIM BIT(17)
184 /* wpa_supplicant/hostapd control interface access */
187 * wpa_ctrl_open - Open a control interface to wpa_supplicant/hostapd
188 * @ctrl_path: Path for UNIX domain sockets; ignored if UDP sockets are used.
189 * Returns: Pointer to abstract control interface data or %NULL on failure
191 * This function is used to open a control interface to wpa_supplicant/hostapd.
192 * ctrl_path is usually /var/run/wpa_supplicant or /var/run/hostapd. This path
193 * is configured in wpa_supplicant/hostapd and other programs using the control
194 * interface need to use matching path configuration.
196 struct wpa_ctrl * wpa_ctrl_open(const char *ctrl_path);
200 * wpa_ctrl_close - Close a control interface to wpa_supplicant/hostapd
201 * @ctrl: Control interface data from wpa_ctrl_open()
203 * This function is used to close a control interface.
205 void wpa_ctrl_close(struct wpa_ctrl *ctrl);
209 * wpa_ctrl_request - Send a command to wpa_supplicant/hostapd
210 * @ctrl: Control interface data from wpa_ctrl_open()
211 * @cmd: Command; usually, ASCII text, e.g., "PING"
212 * @cmd_len: Length of the cmd in bytes
213 * @reply: Buffer for the response
214 * @reply_len: Reply buffer length
215 * @msg_cb: Callback function for unsolicited messages or %NULL if not used
216 * Returns: 0 on success, -1 on error (send or receive failed), -2 on timeout
218 * This function is used to send commands to wpa_supplicant/hostapd. Received
219 * response will be written to reply and reply_len is set to the actual length
220 * of the reply. This function will block for up to two seconds while waiting
221 * for the reply. If unsolicited messages are received, the blocking time may
224 * msg_cb can be used to register a callback function that will be called for
225 * unsolicited messages received while waiting for the command response. These
226 * messages may be received if wpa_ctrl_request() is called at the same time as
227 * wpa_supplicant/hostapd is sending such a message. This can happen only if
228 * the program has used wpa_ctrl_attach() to register itself as a monitor for
229 * event messages. Alternatively to msg_cb, programs can register two control
230 * interface connections and use one of them for commands and the other one for
231 * receiving event messages, in other words, call wpa_ctrl_attach() only for
232 * the control interface connection that will be used for event messages.
234 int wpa_ctrl_request(struct wpa_ctrl *ctrl, const char *cmd, size_t cmd_len,
235 char *reply, size_t *reply_len,
236 void (*msg_cb)(char *msg, size_t len));
240 * wpa_ctrl_attach - Register as an event monitor for the control interface
241 * @ctrl: Control interface data from wpa_ctrl_open()
242 * Returns: 0 on success, -1 on failure, -2 on timeout
244 * This function registers the control interface connection as a monitor for
245 * wpa_supplicant/hostapd events. After a success wpa_ctrl_attach() call, the
246 * control interface connection starts receiving event messages that can be
247 * read with wpa_ctrl_recv().
249 int wpa_ctrl_attach(struct wpa_ctrl *ctrl);
253 * wpa_ctrl_detach - Unregister event monitor from the control interface
254 * @ctrl: Control interface data from wpa_ctrl_open()
255 * Returns: 0 on success, -1 on failure, -2 on timeout
257 * This function unregisters the control interface connection as a monitor for
258 * wpa_supplicant/hostapd events, i.e., cancels the registration done with
261 int wpa_ctrl_detach(struct wpa_ctrl *ctrl);
265 * wpa_ctrl_recv - Receive a pending control interface message
266 * @ctrl: Control interface data from wpa_ctrl_open()
267 * @reply: Buffer for the message data
268 * @reply_len: Length of the reply buffer
269 * Returns: 0 on success, -1 on failure
271 * This function will receive a pending control interface message. This
272 * function will block if no messages are available. The received response will
273 * be written to reply and reply_len is set to the actual length of the reply.
274 * wpa_ctrl_recv() is only used for event messages, i.e., wpa_ctrl_attach()
275 * must have been used to register the control interface as an event monitor.
277 int wpa_ctrl_recv(struct wpa_ctrl *ctrl, char *reply, size_t *reply_len);
281 * wpa_ctrl_pending - Check whether there are pending event messages
282 * @ctrl: Control interface data from wpa_ctrl_open()
283 * Returns: 1 if there are pending messages, 0 if no, or -1 on error
285 * This function will check whether there are any pending control interface
286 * message available to be received with wpa_ctrl_recv(). wpa_ctrl_pending() is
287 * only used for event messages, i.e., wpa_ctrl_attach() must have been used to
288 * register the control interface as an event monitor.
290 int wpa_ctrl_pending(struct wpa_ctrl *ctrl);
294 * wpa_ctrl_get_fd - Get file descriptor used by the control interface
295 * @ctrl: Control interface data from wpa_ctrl_open()
296 * Returns: File descriptor used for the connection
298 * This function can be used to get the file descriptor that is used for the
299 * control interface connection. The returned value can be used, e.g., with
300 * select() while waiting for multiple events.
302 * The returned file descriptor must not be used directly for sending or
303 * receiving packets; instead, the library functions wpa_ctrl_request() and
304 * wpa_ctrl_recv() must be used for this.
306 int wpa_ctrl_get_fd(struct wpa_ctrl *ctrl);
308 char * wpa_ctrl_get_remote_ifname(struct wpa_ctrl *ctrl);
312 * wpa_ctrl_cleanup() - Delete any local UNIX domain socket files that
313 * may be left over from clients that were previously connected to
314 * wpa_supplicant. This keeps these files from being orphaned in the
315 * event of crashes that prevented them from being removed as part
316 * of the normal orderly shutdown.
318 void wpa_ctrl_cleanup(void);
321 #ifdef CONFIG_CTRL_IFACE_UDP
322 /* Port range for multiple wpa_supplicant instances and multiple VIFs */
323 #define WPA_CTRL_IFACE_PORT 9877
324 #define WPA_CTRL_IFACE_PORT_LIMIT 50 /* decremented from start */
325 #define WPA_GLOBAL_CTRL_IFACE_PORT 9878
326 #define WPA_GLOBAL_CTRL_IFACE_PORT_LIMIT 20 /* incremented from start */
327 #endif /* CONFIG_CTRL_IFACE_UDP */
334 #endif /* WPA_CTRL_H */