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
319 * static WEP) and key_mgmt=WPA-NONE (fixed group key TKIP/CCMP). In
320 * addition, ap_scan has to be set to 2 for IBSS. WPA-None requires
321 * following network block options: proto=WPA, key_mgmt=WPA-NONE,
322 * pairwise=NONE, group=TKIP (or CCMP, but not both), and psk must also
323 * be set (either directly or using ASCII passphrase).
329 WPAS_MODE_P2P_GO = 3,
330 WPAS_MODE_P2P_GROUP_FORMATION = 4,
334 * disabled - Whether this network is currently disabled
336 * 0 = this network can be used (default).
337 * 1 = this network block is disabled (can be enabled through
338 * ctrl_iface, e.g., with wpa_cli or wpa_gui).
339 * 2 = this network block includes parameters for a persistent P2P
340 * group (can be used with P2P ctrl_iface commands)
345 * disabled_for_connect - Whether this network was temporarily disabled
347 * This flag is used to reenable all the temporarily disabled networks
348 * after either the success or failure of a WPS connection.
350 int disabled_for_connect;
353 * peerkey - Whether PeerKey handshake for direct links is allowed
355 * This is only used when both RSN/WPA2 and IEEE 802.11e (QoS) are
358 * 0 = disabled (default)
364 * id_str - Network identifier string for external scripts
366 * This value is passed to external ctrl_iface monitors in
367 * WPA_EVENT_CONNECTED event and wpa_cli sets this as WPA_ID_STR
368 * environment variable for action scripts.
372 #ifdef CONFIG_IEEE80211W
374 * ieee80211w - Whether management frame protection is enabled
376 * This value is used to configure policy for management frame
377 * protection (IEEE 802.11w). 0 = disabled, 1 = optional, 2 = required.
378 * This is disabled by default unless the default value has been changed
379 * with the global pmf=1/2 parameter.
381 * Internally, special value 3 is used to indicate that the parameter
382 * was not specified in the configuration (i.e., default behavior is
385 enum mfp_options ieee80211w;
386 #endif /* CONFIG_IEEE80211W */
389 * frequency - Channel frequency in megahertz (MHz) for IBSS
391 * This value is used to configure the initial channel for IBSS (adhoc)
392 * networks, e.g., 2412 = IEEE 802.11b/g channel 1. It is ignored in
393 * the infrastructure mode. In addition, this value is only used by the
394 * station that creates the IBSS. If an IBSS network with the
395 * configured SSID is already present, the frequency of the network
396 * will be used instead of this configured value.
405 * wpa_ptk_rekey - Maximum lifetime for PTK in seconds
407 * This value can be used to enforce rekeying of PTK to mitigate some
408 * attacks against TKIP deficiencies.
413 * scan_freq - Array of frequencies to scan or %NULL for all
415 * This is an optional zero-terminated array of frequencies in
416 * megahertz (MHz) to include in scan requests when searching for this
417 * network. This can be used to speed up scanning when the network is
418 * known to not use all possible channels.
423 * bgscan - Background scan and roaming parameters or %NULL if none
425 * This is an optional set of parameters for background scanning and
426 * roaming within a network (ESS) in following format:
427 * <bgscan module name>:<module parameters>
432 * ignore_broadcast_ssid - Hide SSID in AP mode
434 * Send empty SSID in beacons and ignore probe request frames that do
435 * not specify full SSID, i.e., require stations to know SSID.
436 * default: disabled (0)
437 * 1 = send empty (length=0) SSID in beacon and ignore probe request
439 * 2 = clear SSID (ASCII 0), but keep the original length (this may be
440 * required with some clients that do not support empty SSID) and
441 * ignore probe requests for broadcast SSID
443 int ignore_broadcast_ssid;
446 * freq_list - Array of allowed frequencies or %NULL for all
448 * This is an optional zero-terminated array of frequencies in
449 * megahertz (MHz) to allow for selecting the BSS. If set, scan results
450 * that do not match any of the specified frequencies are not
451 * considered when selecting a BSS.
456 * p2p_client_list - List of P2P Clients in a persistent group (GO)
458 * This is a list of P2P Clients (P2P Device Address) that have joined
459 * the persistent group. This is maintained on the GO for persistent
460 * group entries (disabled == 2).
465 * num_p2p_clients - Number of entries in p2p_client_list
467 size_t num_p2p_clients;
469 #ifndef P2P_MAX_STORED_CLIENTS
470 #define P2P_MAX_STORED_CLIENTS 100
471 #endif /* P2P_MAX_STORED_CLIENTS */
474 * psk_list - Per-client PSKs (struct psk_list_entry)
476 struct dl_list psk_list;
479 * p2p_group - Network generated as a P2P group (used internally)
484 * p2p_persistent_group - Whether this is a persistent group
486 int p2p_persistent_group;
489 * temporary - Whether this network is temporary and not to be saved
494 * export_keys - Whether keys may be exported
496 * This attribute will be set when keys are determined through
497 * WPS or similar so that they may be exported.
501 #ifdef CONFIG_HT_OVERRIDES
503 * disable_ht - Disable HT (IEEE 802.11n) for this network
505 * By default, use it if it is available, but this can be configured
506 * to 1 to have it disabled.
511 * disable_ht40 - Disable HT40 for this network
513 * By default, use it if it is available, but this can be configured
514 * to 1 to have it disabled.
519 * disable_sgi - Disable SGI (Short Guard Interval) for this network
521 * By default, use it if it is available, but this can be configured
522 * to 1 to have it disabled.
527 * disable_max_amsdu - Disable MAX A-MSDU
529 * A-MDSU will be 3839 bytes when disabled, or 7935
530 * when enabled (assuming it is otherwise supported)
531 * -1 (default) means do not apply any settings to the kernel.
533 int disable_max_amsdu;
536 * ampdu_factor - Maximum A-MPDU Length Exponent
538 * Value: 0-3, see 7.3.2.56.3 in IEEE Std 802.11n-2009.
543 * ampdu_density - Minimum A-MPDU Start Spacing
545 * Value: 0-7, see 7.3.2.56.3 in IEEE Std 802.11n-2009.
550 * ht_mcs - Allowed HT-MCS rates, in ASCII hex: ffff0000...
552 * By default (empty string): Use whatever the OS has configured.
555 #endif /* CONFIG_HT_OVERRIDES */
557 #ifdef CONFIG_VHT_OVERRIDES
559 * disable_vht - Disable VHT (IEEE 802.11ac) for this network
561 * By default, use it if it is available, but this can be configured
562 * to 1 to have it disabled.
567 * vht_capa - VHT capabilities to use
569 unsigned int vht_capa;
572 * vht_capa_mask - mask for VHT capabilities
574 unsigned int vht_capa_mask;
576 int vht_rx_mcs_nss_1, vht_rx_mcs_nss_2,
577 vht_rx_mcs_nss_3, vht_rx_mcs_nss_4,
578 vht_rx_mcs_nss_5, vht_rx_mcs_nss_6,
579 vht_rx_mcs_nss_7, vht_rx_mcs_nss_8;
580 int vht_tx_mcs_nss_1, vht_tx_mcs_nss_2,
581 vht_tx_mcs_nss_3, vht_tx_mcs_nss_4,
582 vht_tx_mcs_nss_5, vht_tx_mcs_nss_6,
583 vht_tx_mcs_nss_7, vht_tx_mcs_nss_8;
584 #endif /* CONFIG_VHT_OVERRIDES */
587 * ap_max_inactivity - Timeout in seconds to detect STA's inactivity
589 * This timeout value is used in AP mode to clean up inactive stations.
590 * By default: 300 seconds.
592 int ap_max_inactivity;
595 * dtim_period - DTIM period in Beacon intervals
601 * beacon_int - Beacon interval (default: 100 TU)
606 * auth_failures - Number of consecutive authentication failures
608 unsigned int auth_failures;
611 * disabled_until - Network block disabled until this time if non-zero
613 struct os_time disabled_until;
616 * parent_cred - Pointer to parent wpa_cred entry
618 * This pointer can be used to delete temporary networks when a wpa_cred
619 * that was used to create them is removed. This pointer should not be
620 * dereferences since it may not be updated in all cases.
625 #endif /* CONFIG_SSID_H */