2 * WPA Supplicant / Network configuration structures
3 * Copyright (c) 2003-2008, 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 #include "common/defs.h"
13 #include "eap_peer/eap_config.h"
15 #define MAX_SSID_LEN 32
18 #define DEFAULT_EAP_WORKAROUND ((unsigned int) -1)
19 #define DEFAULT_EAPOL_FLAGS (EAPOL_FLAG_REQUIRE_KEY_UNICAST | \
20 EAPOL_FLAG_REQUIRE_KEY_BROADCAST)
21 #define DEFAULT_PROTO (WPA_PROTO_WPA | WPA_PROTO_RSN)
22 #define DEFAULT_KEY_MGMT (WPA_KEY_MGMT_PSK | WPA_KEY_MGMT_IEEE8021X)
23 #define DEFAULT_PAIRWISE (WPA_CIPHER_CCMP | WPA_CIPHER_TKIP)
24 #define DEFAULT_GROUP (WPA_CIPHER_CCMP | WPA_CIPHER_TKIP | \
25 WPA_CIPHER_WEP104 | WPA_CIPHER_WEP40)
26 #define DEFAULT_FRAGMENT_SIZE 1398
28 #define DEFAULT_BG_SCAN_PERIOD -1
29 #define DEFAULT_DISABLE_HT 0
30 #define DEFAULT_DISABLE_HT40 0
31 #define DEFAULT_DISABLE_MAX_AMSDU -1 /* no change */
32 #define DEFAULT_AMPDU_FACTOR -1 /* no change */
33 #define DEFAULT_AMPDU_DENSITY -1 /* no change */
36 * struct wpa_ssid - Network configuration data
38 * This structure includes all the configuration variables for a network. This
39 * data is included in the per-interface configuration data as an element of
40 * the network list, struct wpa_config::ssid. Each network block in the
41 * configuration is mapped to a struct wpa_ssid instance.
45 * next - Next network in global list
47 * This pointer can be used to iterate over all networks. The head of
48 * this list is stored in the ssid field of struct wpa_config.
50 struct wpa_ssid *next;
53 * pnext - Next network in per-priority list
55 * This pointer can be used to iterate over all networks in the same
56 * priority class. The heads of these list are stored in the pssid
57 * fields of struct wpa_config.
59 struct wpa_ssid *pnext;
62 * id - Unique id for the network
64 * This identifier is used as a unique identifier for each network
65 * block when using the control interface. Each network is allocated an
66 * id when it is being created, either when reading the configuration
67 * file or when a new network is added through the control interface.
72 * priority - Priority group
74 * By default, all networks will get same priority group (0). If some
75 * of the networks are more desirable, this field can be used to change
76 * the order in which wpa_supplicant goes through the networks when
77 * selecting a BSS. The priority groups will be iterated in decreasing
78 * priority (i.e., the larger the priority value, the sooner the
79 * network is matched against the scan results). Within each priority
80 * group, networks will be selected based on security policy, signal
83 * Please note that AP scanning with scan_ssid=1 and ap_scan=2 mode are
84 * not using this priority to select the order for scanning. Instead,
85 * they try the networks in the order that used in the configuration
91 * ssid - Service set identifier (network name)
93 * This is the SSID for the network. For wireless interfaces, this is
94 * used to select which network will be used. If set to %NULL (or
95 * ssid_len=0), any SSID can be used. For wired interfaces, this must
96 * be set to %NULL. Note: SSID may contain any characters, even nul
97 * (ASCII 0) and as such, this should not be assumed to be a nul
98 * terminated string. ssid_len defines how many characters are valid
99 * and the ssid field is not guaranteed to be nul terminated.
104 * ssid_len - Length of the SSID
111 * If set, this network block is used only when associating with the AP
112 * using the configured BSSID
114 * If this is a persistent P2P group (disabled == 2), this is the GO
120 * bssid_set - Whether BSSID is configured for this network
125 * psk - WPA pre-shared key (256 bits)
130 * psk_set - Whether PSK field is configured
135 * passphrase - WPA ASCII passphrase
137 * If this is set, psk will be generated using the SSID and passphrase
138 * configured for the network. ASCII passphrase must be between 8 and
139 * 63 characters (inclusive).
144 * ext_psk - PSK/passphrase name in external storage
146 * If this is set, PSK/passphrase will be fetched from external storage
147 * when requesting association with the network.
152 * pairwise_cipher - Bitfield of allowed pairwise ciphers, WPA_CIPHER_*
157 * group_cipher - Bitfield of allowed group ciphers, WPA_CIPHER_*
162 * key_mgmt - Bitfield of allowed key management protocols
169 * bg_scan_period - Background scan period in seconds, 0 to disable, or
170 * -1 to indicate no change to default driver configuration
175 * proto - Bitfield of allowed protocols, WPA_PROTO_*
180 * auth_alg - Bitfield of allowed authentication algorithms
187 * scan_ssid - Scan this SSID with Probe Requests
189 * scan_ssid can be used to scan for APs using hidden SSIDs.
190 * Note: Many drivers do not support this. ap_mode=2 can be used with
191 * such drivers to use hidden SSIDs.
195 #ifdef IEEE8021X_EAPOL
196 #define EAPOL_FLAG_REQUIRE_KEY_UNICAST BIT(0)
197 #define EAPOL_FLAG_REQUIRE_KEY_BROADCAST BIT(1)
199 * eapol_flags - Bit field of IEEE 802.1X/EAPOL options (EAPOL_FLAG_*)
204 * eap - EAP peer configuration for this network
206 struct eap_peer_config eap;
207 #endif /* IEEE8021X_EAPOL */
209 #define NUM_WEP_KEYS 4
210 #define MAX_WEP_KEY_LEN 16
214 u8 wep_key[NUM_WEP_KEYS][MAX_WEP_KEY_LEN];
217 * wep_key_len - WEP key lengths
219 size_t wep_key_len[NUM_WEP_KEYS];
222 * wep_tx_keyidx - Default key index for TX frames using WEP
227 * proactive_key_caching - Enable proactive key caching
229 * This field can be used to enable proactive key caching which is also
230 * known as opportunistic PMKSA caching for WPA2. This is disabled (0)
231 * by default unless default value is changed with the global okc=1
232 * parameter. Enable by setting this to 1.
234 * Proactive key caching is used to make supplicant assume that the APs
235 * are using the same PMK and generate PMKSA cache entries without
236 * doing RSN pre-authentication. This requires support from the AP side
237 * and is normally used with wireless switches that co-locate the
240 * Internally, special value -1 is used to indicate that the parameter
241 * was not specified in the configuration (i.e., default behavior is
244 int proactive_key_caching;
247 * mixed_cell - Whether mixed cells are allowed
249 * This option can be used to configure whether so called mixed cells,
250 * i.e., networks that use both plaintext and encryption in the same
251 * SSID, are allowed. This is disabled (0) by default. Enable by
256 #ifdef IEEE8021X_EAPOL
259 * leap - Number of EAP methods using LEAP
261 * This field should be set to 1 if LEAP is enabled. This is used to
262 * select IEEE 802.11 authentication algorithm.
267 * non_leap - Number of EAP methods not using LEAP
269 * This field should be set to >0 if any EAP method other than LEAP is
270 * enabled. This is used to select IEEE 802.11 authentication
276 * eap_workaround - EAP workarounds enabled
278 * wpa_supplicant supports number of "EAP workarounds" to work around
279 * interoperability issues with incorrectly behaving authentication
280 * servers. This is recommended to be enabled by default because some
281 * of the issues are present in large number of authentication servers.
283 * Strict EAP conformance mode can be configured by disabling
284 * workarounds with eap_workaround = 0.
286 unsigned int eap_workaround;
288 #endif /* IEEE8021X_EAPOL */
291 * mode - IEEE 802.11 operation mode (Infrastucture/IBSS)
293 * 0 = infrastructure (Managed) mode, i.e., associate with an AP.
295 * 1 = IBSS (ad-hoc, peer-to-peer)
297 * 2 = AP (access point)
299 * 3 = P2P Group Owner (can be set in the configuration file)
301 * 4 = P2P Group Formation (used internally; not in configuration
304 * Note: IBSS can only be used with key_mgmt NONE (plaintext and
305 * static WEP) and key_mgmt=WPA-NONE (fixed group key TKIP/CCMP). In
306 * addition, ap_scan has to be set to 2 for IBSS. WPA-None requires
307 * following network block options: proto=WPA, key_mgmt=WPA-NONE,
308 * pairwise=NONE, group=TKIP (or CCMP, but not both), and psk must also
309 * be set (either directly or using ASCII passphrase).
315 WPAS_MODE_P2P_GO = 3,
316 WPAS_MODE_P2P_GROUP_FORMATION = 4,
320 * disabled - Whether this network is currently disabled
322 * 0 = this network can be used (default).
323 * 1 = this network block is disabled (can be enabled through
324 * ctrl_iface, e.g., with wpa_cli or wpa_gui).
325 * 2 = this network block includes parameters for a persistent P2P
326 * group (can be used with P2P ctrl_iface commands)
331 * disabled_for_connect - Whether this network was temporarily disabled
333 * This flag is used to reenable all the temporarily disabled networks
334 * after either the success or failure of a WPS connection.
336 int disabled_for_connect;
339 * peerkey - Whether PeerKey handshake for direct links is allowed
341 * This is only used when both RSN/WPA2 and IEEE 802.11e (QoS) are
344 * 0 = disabled (default)
350 * id_str - Network identifier string for external scripts
352 * This value is passed to external ctrl_iface monitors in
353 * WPA_EVENT_CONNECTED event and wpa_cli sets this as WPA_ID_STR
354 * environment variable for action scripts.
358 #ifdef CONFIG_IEEE80211W
360 * ieee80211w - Whether management frame protection is enabled
362 * This value is used to configure policy for management frame
363 * protection (IEEE 802.11w). 0 = disabled, 1 = optional, 2 = required.
364 * This is disabled by default unless the default value has been changed
365 * with the global pmf=1/2 parameter.
367 * Internally, special value 3 is used to indicate that the parameter
368 * was not specified in the configuration (i.e., default behavior is
371 enum mfp_options ieee80211w;
372 #endif /* CONFIG_IEEE80211W */
375 * frequency - Channel frequency in megahertz (MHz) for IBSS
377 * This value is used to configure the initial channel for IBSS (adhoc)
378 * networks, e.g., 2412 = IEEE 802.11b/g channel 1. It is ignored in
379 * the infrastructure mode. In addition, this value is only used by the
380 * station that creates the IBSS. If an IBSS network with the
381 * configured SSID is already present, the frequency of the network
382 * will be used instead of this configured value.
389 * wpa_ptk_rekey - Maximum lifetime for PTK in seconds
391 * This value can be used to enforce rekeying of PTK to mitigate some
392 * attacks against TKIP deficiencies.
397 * scan_freq - Array of frequencies to scan or %NULL for all
399 * This is an optional zero-terminated array of frequencies in
400 * megahertz (MHz) to include in scan requests when searching for this
401 * network. This can be used to speed up scanning when the network is
402 * known to not use all possible channels.
407 * bgscan - Background scan and roaming parameters or %NULL if none
409 * This is an optional set of parameters for background scanning and
410 * roaming within a network (ESS) in following format:
411 * <bgscan module name>:<module parameters>
416 * ignore_broadcast_ssid - Hide SSID in AP mode
418 * Send empty SSID in beacons and ignore probe request frames that do
419 * not specify full SSID, i.e., require stations to know SSID.
420 * default: disabled (0)
421 * 1 = send empty (length=0) SSID in beacon and ignore probe request
423 * 2 = clear SSID (ASCII 0), but keep the original length (this may be
424 * required with some clients that do not support empty SSID) and
425 * ignore probe requests for broadcast SSID
427 int ignore_broadcast_ssid;
430 * freq_list - Array of allowed frequencies or %NULL for all
432 * This is an optional zero-terminated array of frequencies in
433 * megahertz (MHz) to allow for selecting the BSS. If set, scan results
434 * that do not match any of the specified frequencies are not
435 * considered when selecting a BSS.
440 * p2p_client_list - List of P2P Clients in a persistent group (GO)
442 * This is a list of P2P Clients (P2P Device Address) that have joined
443 * the persistent group. This is maintained on the GO for persistent
444 * group entries (disabled == 2).
449 * num_p2p_clients - Number of entries in p2p_client_list
451 size_t num_p2p_clients;
453 #ifndef P2P_MAX_STORED_CLIENTS
454 #define P2P_MAX_STORED_CLIENTS 100
455 #endif /* P2P_MAX_STORED_CLIENTS */
458 * p2p_group - Network generated as a P2P group (used internally)
463 * p2p_persistent_group - Whether this is a persistent group
465 int p2p_persistent_group;
468 * temporary - Whether this network is temporary and not to be saved
473 * export_keys - Whether keys may be exported
475 * This attribute will be set when keys are determined through
476 * WPS or similar so that they may be exported.
480 #ifdef CONFIG_HT_OVERRIDES
482 * disable_ht - Disable HT (IEEE 802.11n) for this network
484 * By default, use it if it is available, but this can be configured
485 * to 1 to have it disabled.
490 * disable_ht40 - Disable HT40 for this network
492 * By default, use it if it is available, but this can be configured
493 * to 1 to have it disabled.
498 * disable_max_amsdu - Disable MAX A-MSDU
500 * A-MDSU will be 3839 bytes when disabled, or 7935
501 * when enabled (assuming it is otherwise supported)
502 * -1 (default) means do not apply any settings to the kernel.
504 int disable_max_amsdu;
507 * ampdu_factor - Maximum A-MPDU Length Exponent
509 * Value: 0-3, see 7.3.2.56.3 in IEEE Std 802.11n-2009.
514 * ampdu_density - Minimum A-MPDU Start Spacing
516 * Value: 0-7, see 7.3.2.56.3 in IEEE Std 802.11n-2009.
521 * ht_mcs - Allowed HT-MCS rates, in ASCII hex: ffff0000...
523 * By default (empty string): Use whatever the OS has configured.
526 #endif /* CONFIG_HT_OVERRIDES */
529 * ap_max_inactivity - Timeout in seconds to detect STA's inactivity
531 * This timeout value is used in AP mode to clean up inactive stations.
532 * By default: 300 seconds.
534 int ap_max_inactivity;
537 * dtim_period - DTIM period in Beacon intervals
543 * auth_failures - Number of consecutive authentication failures
545 unsigned int auth_failures;
548 * disabled_until - Network block disabled until this time if non-zero
550 struct os_time disabled_until;
553 * parent_cred - Pointer to parent wpa_cred entry
555 * This pointer can be used to delete temporary networks when a wpa_cred
556 * that was used to create them is removed. This pointer should not be
557 * dereferences since it may not be updated in all cases.
562 #endif /* CONFIG_SSID_H */