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_DISABLE_HT 0
31 #define DEFAULT_DISABLE_HT40 0
32 #define DEFAULT_DISABLE_SGI 0
33 #define DEFAULT_DISABLE_MAX_AMSDU -1 /* no change */
34 #define DEFAULT_AMPDU_FACTOR -1 /* no change */
35 #define DEFAULT_AMPDU_DENSITY -1 /* no change */
37 struct psk_list_entry {
45 * struct wpa_ssid - Network configuration data
47 * This structure includes all the configuration variables for a network. This
48 * data is included in the per-interface configuration data as an element of
49 * the network list, struct wpa_config::ssid. Each network block in the
50 * configuration is mapped to a struct wpa_ssid instance.
54 * next - Next network in global list
56 * This pointer can be used to iterate over all networks. The head of
57 * this list is stored in the ssid field of struct wpa_config.
59 struct wpa_ssid *next;
62 * pnext - Next network in per-priority list
64 * This pointer can be used to iterate over all networks in the same
65 * priority class. The heads of these list are stored in the pssid
66 * fields of struct wpa_config.
68 struct wpa_ssid *pnext;
71 * id - Unique id for the network
73 * This identifier is used as a unique identifier for each network
74 * block when using the control interface. Each network is allocated an
75 * id when it is being created, either when reading the configuration
76 * file or when a new network is added through the control interface.
81 * priority - Priority group
83 * By default, all networks will get same priority group (0). If some
84 * of the networks are more desirable, this field can be used to change
85 * the order in which wpa_supplicant goes through the networks when
86 * selecting a BSS. The priority groups will be iterated in decreasing
87 * priority (i.e., the larger the priority value, the sooner the
88 * network is matched against the scan results). Within each priority
89 * group, networks will be selected based on security policy, signal
92 * Please note that AP scanning with scan_ssid=1 and ap_scan=2 mode are
93 * not using this priority to select the order for scanning. Instead,
94 * they try the networks in the order that used in the configuration
100 * ssid - Service set identifier (network name)
102 * This is the SSID for the network. For wireless interfaces, this is
103 * used to select which network will be used. If set to %NULL (or
104 * ssid_len=0), any SSID can be used. For wired interfaces, this must
105 * be set to %NULL. Note: SSID may contain any characters, even nul
106 * (ASCII 0) and as such, this should not be assumed to be a nul
107 * terminated string. ssid_len defines how many characters are valid
108 * and the ssid field is not guaranteed to be nul terminated.
113 * ssid_len - Length of the SSID
120 * If set, this network block is used only when associating with the AP
121 * using the configured BSSID
123 * If this is a persistent P2P group (disabled == 2), this is the GO
129 * bssid_set - Whether BSSID is configured for this network
134 * go_p2p_dev_addr - GO's P2P Device Address or all zeros if not set
136 u8 go_p2p_dev_addr[ETH_ALEN];
139 * psk - WPA pre-shared key (256 bits)
144 * psk_set - Whether PSK field is configured
149 * passphrase - WPA ASCII passphrase
151 * If this is set, psk will be generated using the SSID and passphrase
152 * configured for the network. ASCII passphrase must be between 8 and
153 * 63 characters (inclusive).
158 * ext_psk - PSK/passphrase name in external storage
160 * If this is set, PSK/passphrase will be fetched from external storage
161 * when requesting association with the network.
166 * pairwise_cipher - Bitfield of allowed pairwise ciphers, WPA_CIPHER_*
171 * group_cipher - Bitfield of allowed group ciphers, WPA_CIPHER_*
176 * key_mgmt - Bitfield of allowed key management protocols
183 * bg_scan_period - Background scan period in seconds, 0 to disable, or
184 * -1 to indicate no change to default driver configuration
189 * proto - Bitfield of allowed protocols, WPA_PROTO_*
194 * auth_alg - Bitfield of allowed authentication algorithms
201 * scan_ssid - Scan this SSID with Probe Requests
203 * scan_ssid can be used to scan for APs using hidden SSIDs.
204 * Note: Many drivers do not support this. ap_mode=2 can be used with
205 * such drivers to use hidden SSIDs.
209 #ifdef IEEE8021X_EAPOL
210 #define EAPOL_FLAG_REQUIRE_KEY_UNICAST BIT(0)
211 #define EAPOL_FLAG_REQUIRE_KEY_BROADCAST BIT(1)
213 * eapol_flags - Bit field of IEEE 802.1X/EAPOL options (EAPOL_FLAG_*)
218 * eap - EAP peer configuration for this network
220 struct eap_peer_config eap;
221 #endif /* IEEE8021X_EAPOL */
223 #define NUM_WEP_KEYS 4
224 #define MAX_WEP_KEY_LEN 16
228 u8 wep_key[NUM_WEP_KEYS][MAX_WEP_KEY_LEN];
231 * wep_key_len - WEP key lengths
233 size_t wep_key_len[NUM_WEP_KEYS];
236 * wep_tx_keyidx - Default key index for TX frames using WEP
241 * proactive_key_caching - Enable proactive key caching
243 * This field can be used to enable proactive key caching which is also
244 * known as opportunistic PMKSA caching for WPA2. This is disabled (0)
245 * by default unless default value is changed with the global okc=1
246 * parameter. Enable by setting this to 1.
248 * Proactive key caching is used to make supplicant assume that the APs
249 * are using the same PMK and generate PMKSA cache entries without
250 * doing RSN pre-authentication. This requires support from the AP side
251 * and is normally used with wireless switches that co-locate the
254 * Internally, special value -1 is used to indicate that the parameter
255 * was not specified in the configuration (i.e., default behavior is
258 int proactive_key_caching;
261 * mixed_cell - Whether mixed cells are allowed
263 * This option can be used to configure whether so called mixed cells,
264 * i.e., networks that use both plaintext and encryption in the same
265 * SSID, are allowed. This is disabled (0) by default. Enable by
270 #ifdef IEEE8021X_EAPOL
273 * leap - Number of EAP methods using LEAP
275 * This field should be set to 1 if LEAP is enabled. This is used to
276 * select IEEE 802.11 authentication algorithm.
281 * non_leap - Number of EAP methods not using LEAP
283 * This field should be set to >0 if any EAP method other than LEAP is
284 * enabled. This is used to select IEEE 802.11 authentication
290 * eap_workaround - EAP workarounds enabled
292 * wpa_supplicant supports number of "EAP workarounds" to work around
293 * interoperability issues with incorrectly behaving authentication
294 * servers. This is recommended to be enabled by default because some
295 * of the issues are present in large number of authentication servers.
297 * Strict EAP conformance mode can be configured by disabling
298 * workarounds with eap_workaround = 0.
300 unsigned int eap_workaround;
302 #endif /* IEEE8021X_EAPOL */
305 * mode - IEEE 802.11 operation mode (Infrastucture/IBSS)
307 * 0 = infrastructure (Managed) mode, i.e., associate with an AP.
309 * 1 = IBSS (ad-hoc, peer-to-peer)
311 * 2 = AP (access point)
313 * 3 = P2P Group Owner (can be set in the configuration file)
315 * 4 = P2P Group Formation (used internally; not in configuration
318 * Note: IBSS can only be used with key_mgmt NONE (plaintext and static
319 * WEP) and WPA-PSK (with proto=RSN). In addition, key_mgmt=WPA-NONE
320 * (fixed group key TKIP/CCMP) is available for backwards compatibility,
321 * but its use is deprecated. WPA-None requires following network block
322 * options: proto=WPA, key_mgmt=WPA-NONE, pairwise=NONE, group=TKIP (or
323 * CCMP, but not both), and psk must also be set (either directly or
324 * using ASCII passphrase).
330 WPAS_MODE_P2P_GO = 3,
331 WPAS_MODE_P2P_GROUP_FORMATION = 4,
335 * disabled - Whether this network is currently disabled
337 * 0 = this network can be used (default).
338 * 1 = this network block is disabled (can be enabled through
339 * ctrl_iface, e.g., with wpa_cli or wpa_gui).
340 * 2 = this network block includes parameters for a persistent P2P
341 * group (can be used with P2P ctrl_iface commands)
346 * disabled_for_connect - Whether this network was temporarily disabled
348 * This flag is used to reenable all the temporarily disabled networks
349 * after either the success or failure of a WPS connection.
351 int disabled_for_connect;
354 * peerkey - Whether PeerKey handshake for direct links is allowed
356 * This is only used when both RSN/WPA2 and IEEE 802.11e (QoS) are
359 * 0 = disabled (default)
365 * id_str - Network identifier string for external scripts
367 * This value is passed to external ctrl_iface monitors in
368 * WPA_EVENT_CONNECTED event and wpa_cli sets this as WPA_ID_STR
369 * environment variable for action scripts.
373 #ifdef CONFIG_IEEE80211W
375 * ieee80211w - Whether management frame protection is enabled
377 * This value is used to configure policy for management frame
378 * protection (IEEE 802.11w). 0 = disabled, 1 = optional, 2 = required.
379 * This is disabled by default unless the default value has been changed
380 * with the global pmf=1/2 parameter.
382 * Internally, special value 3 is used to indicate that the parameter
383 * was not specified in the configuration (i.e., default behavior is
386 enum mfp_options ieee80211w;
387 #endif /* CONFIG_IEEE80211W */
390 * frequency - Channel frequency in megahertz (MHz) for IBSS
392 * This value is used to configure the initial channel for IBSS (adhoc)
393 * networks, e.g., 2412 = IEEE 802.11b/g channel 1. It is ignored in
394 * the infrastructure mode. In addition, this value is only used by the
395 * station that creates the IBSS. If an IBSS network with the
396 * configured SSID is already present, the frequency of the network
397 * will be used instead of this configured value.
406 * wpa_ptk_rekey - Maximum lifetime for PTK in seconds
408 * This value can be used to enforce rekeying of PTK to mitigate some
409 * attacks against TKIP deficiencies.
414 * scan_freq - Array of frequencies to scan or %NULL for all
416 * This is an optional zero-terminated array of frequencies in
417 * megahertz (MHz) to include in scan requests when searching for this
418 * network. This can be used to speed up scanning when the network is
419 * known to not use all possible channels.
424 * bgscan - Background scan and roaming parameters or %NULL if none
426 * This is an optional set of parameters for background scanning and
427 * roaming within a network (ESS) in following format:
428 * <bgscan module name>:<module parameters>
433 * ignore_broadcast_ssid - Hide SSID in AP mode
435 * Send empty SSID in beacons and ignore probe request frames that do
436 * not specify full SSID, i.e., require stations to know SSID.
437 * default: disabled (0)
438 * 1 = send empty (length=0) SSID in beacon and ignore probe request
440 * 2 = clear SSID (ASCII 0), but keep the original length (this may be
441 * required with some clients that do not support empty SSID) and
442 * ignore probe requests for broadcast SSID
444 int ignore_broadcast_ssid;
447 * freq_list - Array of allowed frequencies or %NULL for all
449 * This is an optional zero-terminated array of frequencies in
450 * megahertz (MHz) to allow for selecting the BSS. If set, scan results
451 * that do not match any of the specified frequencies are not
452 * considered when selecting a BSS.
457 * p2p_client_list - List of P2P Clients in a persistent group (GO)
459 * This is a list of P2P Clients (P2P Device Address) that have joined
460 * the persistent group. This is maintained on the GO for persistent
461 * group entries (disabled == 2).
466 * num_p2p_clients - Number of entries in p2p_client_list
468 size_t num_p2p_clients;
470 #ifndef P2P_MAX_STORED_CLIENTS
471 #define P2P_MAX_STORED_CLIENTS 100
472 #endif /* P2P_MAX_STORED_CLIENTS */
475 * psk_list - Per-client PSKs (struct psk_list_entry)
477 struct dl_list psk_list;
480 * p2p_group - Network generated as a P2P group (used internally)
485 * p2p_persistent_group - Whether this is a persistent group
487 int p2p_persistent_group;
490 * temporary - Whether this network is temporary and not to be saved
495 * export_keys - Whether keys may be exported
497 * This attribute will be set when keys are determined through
498 * WPS or similar so that they may be exported.
502 #ifdef CONFIG_HT_OVERRIDES
504 * disable_ht - Disable HT (IEEE 802.11n) for this network
506 * By default, use it if it is available, but this can be configured
507 * to 1 to have it disabled.
512 * disable_ht40 - Disable HT40 for this network
514 * By default, use it if it is available, but this can be configured
515 * to 1 to have it disabled.
520 * disable_sgi - Disable SGI (Short Guard Interval) for this network
522 * By default, use it if it is available, but this can be configured
523 * to 1 to have it disabled.
528 * disable_max_amsdu - Disable MAX A-MSDU
530 * A-MDSU will be 3839 bytes when disabled, or 7935
531 * when enabled (assuming it is otherwise supported)
532 * -1 (default) means do not apply any settings to the kernel.
534 int disable_max_amsdu;
537 * ampdu_factor - Maximum A-MPDU Length Exponent
539 * Value: 0-3, see 7.3.2.56.3 in IEEE Std 802.11n-2009.
544 * ampdu_density - Minimum A-MPDU Start Spacing
546 * Value: 0-7, see 7.3.2.56.3 in IEEE Std 802.11n-2009.
551 * ht_mcs - Allowed HT-MCS rates, in ASCII hex: ffff0000...
553 * By default (empty string): Use whatever the OS has configured.
556 #endif /* CONFIG_HT_OVERRIDES */
558 #ifdef CONFIG_VHT_OVERRIDES
560 * disable_vht - Disable VHT (IEEE 802.11ac) for this network
562 * By default, use it if it is available, but this can be configured
563 * to 1 to have it disabled.
568 * vht_capa - VHT capabilities to use
570 unsigned int vht_capa;
573 * vht_capa_mask - mask for VHT capabilities
575 unsigned int vht_capa_mask;
577 int vht_rx_mcs_nss_1, vht_rx_mcs_nss_2,
578 vht_rx_mcs_nss_3, vht_rx_mcs_nss_4,
579 vht_rx_mcs_nss_5, vht_rx_mcs_nss_6,
580 vht_rx_mcs_nss_7, vht_rx_mcs_nss_8;
581 int vht_tx_mcs_nss_1, vht_tx_mcs_nss_2,
582 vht_tx_mcs_nss_3, vht_tx_mcs_nss_4,
583 vht_tx_mcs_nss_5, vht_tx_mcs_nss_6,
584 vht_tx_mcs_nss_7, vht_tx_mcs_nss_8;
585 #endif /* CONFIG_VHT_OVERRIDES */
588 * ap_max_inactivity - Timeout in seconds to detect STA's inactivity
590 * This timeout value is used in AP mode to clean up inactive stations.
591 * By default: 300 seconds.
593 int ap_max_inactivity;
596 * dtim_period - DTIM period in Beacon intervals
602 * beacon_int - Beacon interval (default: 100 TU)
607 * auth_failures - Number of consecutive authentication failures
609 unsigned int auth_failures;
612 * disabled_until - Network block disabled until this time if non-zero
614 struct os_time disabled_until;
617 * parent_cred - Pointer to parent wpa_cred entry
619 * This pointer can be used to delete temporary networks when a wpa_cred
620 * that was used to create them is removed. This pointer should not be
621 * dereferences since it may not be updated in all cases.
626 #endif /* CONFIG_SSID_H */