2 * WPA Supplicant / Network configuration structures
3 * Copyright (c) 2003-2013, 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 "utils/list.h"
14 #include "eap_peer/eap_config.h"
16 #define MAX_SSID_LEN 32
19 #define DEFAULT_EAP_WORKAROUND ((unsigned int) -1)
20 #define DEFAULT_EAPOL_FLAGS (EAPOL_FLAG_REQUIRE_KEY_UNICAST | \
21 EAPOL_FLAG_REQUIRE_KEY_BROADCAST)
22 #define DEFAULT_PROTO (WPA_PROTO_WPA | WPA_PROTO_RSN)
23 #define DEFAULT_KEY_MGMT (WPA_KEY_MGMT_PSK | WPA_KEY_MGMT_IEEE8021X)
24 #define DEFAULT_PAIRWISE (WPA_CIPHER_CCMP | WPA_CIPHER_TKIP)
25 #define DEFAULT_GROUP (WPA_CIPHER_CCMP | WPA_CIPHER_TKIP | \
26 WPA_CIPHER_WEP104 | WPA_CIPHER_WEP40)
27 #define DEFAULT_FRAGMENT_SIZE 1398
29 #define DEFAULT_BG_SCAN_PERIOD -1
30 #define DEFAULT_MESH_HT_MODE CHAN_UNDEFINED /* undefined */
31 #define DEFAULT_DISABLE_HT 0
32 #define DEFAULT_DISABLE_HT40 0
33 #define DEFAULT_DISABLE_SGI 0
34 #define DEFAULT_DISABLE_LDPC 0
35 #define DEFAULT_DISABLE_MAX_AMSDU -1 /* no change */
36 #define DEFAULT_AMPDU_FACTOR -1 /* no change */
37 #define DEFAULT_AMPDU_DENSITY -1 /* no change */
38 #define DEFAULT_USER_SELECTED_SIM 1
40 struct psk_list_entry {
48 * struct wpa_ssid - Network configuration data
50 * This structure includes all the configuration variables for a network. This
51 * data is included in the per-interface configuration data as an element of
52 * the network list, struct wpa_config::ssid. Each network block in the
53 * configuration is mapped to a struct wpa_ssid instance.
57 * next - Next network in global list
59 * This pointer can be used to iterate over all networks. The head of
60 * this list is stored in the ssid field of struct wpa_config.
62 struct wpa_ssid *next;
65 * pnext - Next network in per-priority list
67 * This pointer can be used to iterate over all networks in the same
68 * priority class. The heads of these list are stored in the pssid
69 * fields of struct wpa_config.
71 struct wpa_ssid *pnext;
74 * id - Unique id for the network
76 * This identifier is used as a unique identifier for each network
77 * block when using the control interface. Each network is allocated an
78 * id when it is being created, either when reading the configuration
79 * file or when a new network is added through the control interface.
84 * priority - Priority group
86 * By default, all networks will get same priority group (0). If some
87 * of the networks are more desirable, this field can be used to change
88 * the order in which wpa_supplicant goes through the networks when
89 * selecting a BSS. The priority groups will be iterated in decreasing
90 * priority (i.e., the larger the priority value, the sooner the
91 * network is matched against the scan results). Within each priority
92 * group, networks will be selected based on security policy, signal
95 * Please note that AP scanning with scan_ssid=1 and ap_scan=2 mode are
96 * not using this priority to select the order for scanning. Instead,
97 * they try the networks in the order that used in the configuration
103 * ssid - Service set identifier (network name)
105 * This is the SSID for the network. For wireless interfaces, this is
106 * used to select which network will be used. If set to %NULL (or
107 * ssid_len=0), any SSID can be used. For wired interfaces, this must
108 * be set to %NULL. Note: SSID may contain any characters, even nul
109 * (ASCII 0) and as such, this should not be assumed to be a nul
110 * terminated string. ssid_len defines how many characters are valid
111 * and the ssid field is not guaranteed to be nul terminated.
116 * ssid_len - Length of the SSID
123 * If set, this network block is used only when associating with the AP
124 * using the configured BSSID
126 * If this is a persistent P2P group (disabled == 2), this is the GO
132 * bssid_set - Whether BSSID is configured for this network
137 * go_p2p_dev_addr - GO's P2P Device Address or all zeros if not set
139 u8 go_p2p_dev_addr[ETH_ALEN];
142 * psk - WPA pre-shared key (256 bits)
147 * psk_set - Whether PSK field is configured
152 * passphrase - WPA ASCII passphrase
154 * If this is set, psk will be generated using the SSID and passphrase
155 * configured for the network. ASCII passphrase must be between 8 and
156 * 63 characters (inclusive).
161 * ext_psk - PSK/passphrase name in external storage
163 * If this is set, PSK/passphrase will be fetched from external storage
164 * when requesting association with the network.
169 * pairwise_cipher - Bitfield of allowed pairwise ciphers, WPA_CIPHER_*
174 * group_cipher - Bitfield of allowed group ciphers, WPA_CIPHER_*
179 * key_mgmt - Bitfield of allowed key management protocols
186 * bg_scan_period - Background scan period in seconds, 0 to disable, or
187 * -1 to indicate no change to default driver configuration
192 * proto - Bitfield of allowed protocols, WPA_PROTO_*
197 * auth_alg - Bitfield of allowed authentication algorithms
204 * scan_ssid - Scan this SSID with Probe Requests
206 * scan_ssid can be used to scan for APs using hidden SSIDs.
207 * Note: Many drivers do not support this. ap_mode=2 can be used with
208 * such drivers to use hidden SSIDs.
212 #ifdef IEEE8021X_EAPOL
213 #define EAPOL_FLAG_REQUIRE_KEY_UNICAST BIT(0)
214 #define EAPOL_FLAG_REQUIRE_KEY_BROADCAST BIT(1)
216 * eapol_flags - Bit field of IEEE 802.1X/EAPOL options (EAPOL_FLAG_*)
221 * eap - EAP peer configuration for this network
223 struct eap_peer_config eap;
224 #endif /* IEEE8021X_EAPOL */
226 #define NUM_WEP_KEYS 4
227 #define MAX_WEP_KEY_LEN 16
231 u8 wep_key[NUM_WEP_KEYS][MAX_WEP_KEY_LEN];
234 * wep_key_len - WEP key lengths
236 size_t wep_key_len[NUM_WEP_KEYS];
239 * wep_tx_keyidx - Default key index for TX frames using WEP
244 * proactive_key_caching - Enable proactive key caching
246 * This field can be used to enable proactive key caching which is also
247 * known as opportunistic PMKSA caching for WPA2. This is disabled (0)
248 * by default unless default value is changed with the global okc=1
249 * parameter. Enable by setting this to 1.
251 * Proactive key caching is used to make supplicant assume that the APs
252 * are using the same PMK and generate PMKSA cache entries without
253 * doing RSN pre-authentication. This requires support from the AP side
254 * and is normally used with wireless switches that co-locate the
257 * Internally, special value -1 is used to indicate that the parameter
258 * was not specified in the configuration (i.e., default behavior is
261 int proactive_key_caching;
264 * mixed_cell - Whether mixed cells are allowed
266 * This option can be used to configure whether so called mixed cells,
267 * i.e., networks that use both plaintext and encryption in the same
268 * SSID, are allowed. This is disabled (0) by default. Enable by
273 #ifdef IEEE8021X_EAPOL
276 * leap - Number of EAP methods using LEAP
278 * This field should be set to 1 if LEAP is enabled. This is used to
279 * select IEEE 802.11 authentication algorithm.
284 * non_leap - Number of EAP methods not using LEAP
286 * This field should be set to >0 if any EAP method other than LEAP is
287 * enabled. This is used to select IEEE 802.11 authentication
293 * eap_workaround - EAP workarounds enabled
295 * wpa_supplicant supports number of "EAP workarounds" to work around
296 * interoperability issues with incorrectly behaving authentication
297 * servers. This is recommended to be enabled by default because some
298 * of the issues are present in large number of authentication servers.
300 * Strict EAP conformance mode can be configured by disabling
301 * workarounds with eap_workaround = 0.
303 unsigned int eap_workaround;
305 #endif /* IEEE8021X_EAPOL */
308 * mode - IEEE 802.11 operation mode (Infrastucture/IBSS)
310 * 0 = infrastructure (Managed) mode, i.e., associate with an AP.
312 * 1 = IBSS (ad-hoc, peer-to-peer)
314 * 2 = AP (access point)
316 * 3 = P2P Group Owner (can be set in the configuration file)
318 * 4 = P2P Group Formation (used internally; not in configuration
323 * Note: IBSS can only be used with key_mgmt NONE (plaintext and static
324 * WEP) and WPA-PSK (with proto=RSN). In addition, key_mgmt=WPA-NONE
325 * (fixed group key TKIP/CCMP) is available for backwards compatibility,
326 * but its use is deprecated. WPA-None requires following network block
327 * options: proto=WPA, key_mgmt=WPA-NONE, pairwise=NONE, group=TKIP (or
328 * CCMP, but not both), and psk must also be set (either directly or
329 * using ASCII passphrase).
335 WPAS_MODE_P2P_GO = 3,
336 WPAS_MODE_P2P_GROUP_FORMATION = 4,
341 * disabled - Whether this network is currently disabled
343 * 0 = this network can be used (default).
344 * 1 = this network block is disabled (can be enabled through
345 * ctrl_iface, e.g., with wpa_cli or wpa_gui).
346 * 2 = this network block includes parameters for a persistent P2P
347 * group (can be used with P2P ctrl_iface commands)
352 * disabled_for_connect - Whether this network was temporarily disabled
354 * This flag is used to reenable all the temporarily disabled networks
355 * after either the success or failure of a WPS connection.
357 int disabled_for_connect;
360 * peerkey - Whether PeerKey handshake for direct links is allowed
362 * This is only used when both RSN/WPA2 and IEEE 802.11e (QoS) are
365 * 0 = disabled (default)
371 * id_str - Network identifier string for external scripts
373 * This value is passed to external ctrl_iface monitors in
374 * WPA_EVENT_CONNECTED event and wpa_cli sets this as WPA_ID_STR
375 * environment variable for action scripts.
379 #ifdef CONFIG_IEEE80211W
381 * ieee80211w - Whether management frame protection is enabled
383 * This value is used to configure policy for management frame
384 * protection (IEEE 802.11w). 0 = disabled, 1 = optional, 2 = required.
385 * This is disabled by default unless the default value has been changed
386 * with the global pmf=1/2 parameter.
388 * Internally, special value 3 is used to indicate that the parameter
389 * was not specified in the configuration (i.e., default behavior is
392 enum mfp_options ieee80211w;
393 #endif /* CONFIG_IEEE80211W */
396 * frequency - Channel frequency in megahertz (MHz) for IBSS
398 * This value is used to configure the initial channel for IBSS (adhoc)
399 * networks, e.g., 2412 = IEEE 802.11b/g channel 1. It is ignored in
400 * the infrastructure mode. In addition, this value is only used by the
401 * station that creates the IBSS. If an IBSS network with the
402 * configured SSID is already present, the frequency of the network
403 * will be used instead of this configured value.
408 * mesh_ht_mode - definition of HT mode in mesh mode
410 * Use the given HT mode for mesh networks. The driver will
411 * adapt to other stations if neccesary, but advertise the
412 * configured HT mode (HT20/HT40-/HT40+/NOHT).
417 * mesh_basic_rates - BSS Basic rate set for mesh network
420 int *mesh_basic_rates;
427 * wpa_ptk_rekey - Maximum lifetime for PTK in seconds
429 * This value can be used to enforce rekeying of PTK to mitigate some
430 * attacks against TKIP deficiencies.
435 * scan_freq - Array of frequencies to scan or %NULL for all
437 * This is an optional zero-terminated array of frequencies in
438 * megahertz (MHz) to include in scan requests when searching for this
439 * network. This can be used to speed up scanning when the network is
440 * known to not use all possible channels.
445 * bgscan - Background scan and roaming parameters or %NULL if none
447 * This is an optional set of parameters for background scanning and
448 * roaming within a network (ESS) in following format:
449 * <bgscan module name>:<module parameters>
454 * ignore_broadcast_ssid - Hide SSID in AP mode
456 * Send empty SSID in beacons and ignore probe request frames that do
457 * not specify full SSID, i.e., require stations to know SSID.
458 * default: disabled (0)
459 * 1 = send empty (length=0) SSID in beacon and ignore probe request
461 * 2 = clear SSID (ASCII 0), but keep the original length (this may be
462 * required with some clients that do not support empty SSID) and
463 * ignore probe requests for broadcast SSID
465 int ignore_broadcast_ssid;
468 * freq_list - Array of allowed frequencies or %NULL for all
470 * This is an optional zero-terminated array of frequencies in
471 * megahertz (MHz) to allow for selecting the BSS. If set, scan results
472 * that do not match any of the specified frequencies are not
473 * considered when selecting a BSS.
478 * p2p_client_list - List of P2P Clients in a persistent group (GO)
480 * This is a list of P2P Clients (P2P Device Address) that have joined
481 * the persistent group. This is maintained on the GO for persistent
482 * group entries (disabled == 2).
487 * num_p2p_clients - Number of entries in p2p_client_list
489 size_t num_p2p_clients;
491 #ifndef P2P_MAX_STORED_CLIENTS
492 #define P2P_MAX_STORED_CLIENTS 100
493 #endif /* P2P_MAX_STORED_CLIENTS */
496 * psk_list - Per-client PSKs (struct psk_list_entry)
498 struct dl_list psk_list;
501 * p2p_group - Network generated as a P2P group (used internally)
506 * p2p_persistent_group - Whether this is a persistent group
508 int p2p_persistent_group;
511 * temporary - Whether this network is temporary and not to be saved
516 * export_keys - Whether keys may be exported
518 * This attribute will be set when keys are determined through
519 * WPS or similar so that they may be exported.
523 #ifdef CONFIG_HT_OVERRIDES
525 * disable_ht - Disable HT (IEEE 802.11n) for this network
527 * By default, use it if it is available, but this can be configured
528 * to 1 to have it disabled.
533 * disable_ht40 - Disable HT40 for this network
535 * By default, use it if it is available, but this can be configured
536 * to 1 to have it disabled.
541 * disable_sgi - Disable SGI (Short Guard Interval) for this network
543 * By default, use it if it is available, but this can be configured
544 * to 1 to have it disabled.
549 * disable_ldpc - Disable LDPC for this network
551 * By default, use it if it is available, but this can be configured
552 * to 1 to have it disabled.
557 * ht40_intolerant - Indicate 40 MHz intolerant for this network
562 * disable_max_amsdu - Disable MAX A-MSDU
564 * A-MDSU will be 3839 bytes when disabled, or 7935
565 * when enabled (assuming it is otherwise supported)
566 * -1 (default) means do not apply any settings to the kernel.
568 int disable_max_amsdu;
571 * ampdu_factor - Maximum A-MPDU Length Exponent
573 * Value: 0-3, see 7.3.2.56.3 in IEEE Std 802.11n-2009.
578 * ampdu_density - Minimum A-MPDU Start Spacing
580 * Value: 0-7, see 7.3.2.56.3 in IEEE Std 802.11n-2009.
585 * ht_mcs - Allowed HT-MCS rates, in ASCII hex: ffff0000...
587 * By default (empty string): Use whatever the OS has configured.
590 #endif /* CONFIG_HT_OVERRIDES */
592 #ifdef CONFIG_VHT_OVERRIDES
594 * disable_vht - Disable VHT (IEEE 802.11ac) for this network
596 * By default, use it if it is available, but this can be configured
597 * to 1 to have it disabled.
602 * vht_capa - VHT capabilities to use
604 unsigned int vht_capa;
607 * vht_capa_mask - mask for VHT capabilities
609 unsigned int vht_capa_mask;
611 int vht_rx_mcs_nss_1, vht_rx_mcs_nss_2,
612 vht_rx_mcs_nss_3, vht_rx_mcs_nss_4,
613 vht_rx_mcs_nss_5, vht_rx_mcs_nss_6,
614 vht_rx_mcs_nss_7, vht_rx_mcs_nss_8;
615 int vht_tx_mcs_nss_1, vht_tx_mcs_nss_2,
616 vht_tx_mcs_nss_3, vht_tx_mcs_nss_4,
617 vht_tx_mcs_nss_5, vht_tx_mcs_nss_6,
618 vht_tx_mcs_nss_7, vht_tx_mcs_nss_8;
619 #endif /* CONFIG_VHT_OVERRIDES */
622 * ap_max_inactivity - Timeout in seconds to detect STA's inactivity
624 * This timeout value is used in AP mode to clean up inactive stations.
625 * By default: 300 seconds.
627 int ap_max_inactivity;
630 * dtim_period - DTIM period in Beacon intervals
636 * beacon_int - Beacon interval (default: 100 TU)
641 * auth_failures - Number of consecutive authentication failures
643 unsigned int auth_failures;
646 * disabled_until - Network block disabled until this time if non-zero
648 struct os_reltime disabled_until;
651 * parent_cred - Pointer to parent wpa_cred entry
653 * This pointer can be used to delete temporary networks when a wpa_cred
654 * that was used to create them is removed. This pointer should not be
655 * dereferences since it may not be updated in all cases.
661 * macsec_policy - Determines the policy for MACsec secure session
663 * 0: MACsec not in use (default)
664 * 1: MACsec enabled - Should secure, accept key server's advice to
665 * determine whether to use a secure session or not.
668 #endif /* CONFIG_MACSEC */
671 int update_identifier;
672 #endif /* CONFIG_HS20 */
674 unsigned int wps_run;
677 * mac_addr - MAC address policy
679 * 0 = use permanent MAC address
680 * 1 = use random MAC address for each ESS connection
681 * 2 = like 1, but maintain OUI (with local admin bit set)
683 * Internally, special value -1 is used to indicate that the parameter
684 * was not specified in the configuration (i.e., default behavior is
690 * no_auto_peer - Do not automatically peer with compatible mesh peers
692 * When unset, the reception of a beacon from a another mesh peer in
693 * this MBSS will trigger a peering attempt.
698 #endif /* CONFIG_SSID_H */