2 * WPA Supplicant / Network configuration structures
3 * Copyright (c) 2003-2008, Jouni Malinen <j@w1.fi>
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License version 2 as
7 * published by the Free Software Foundation.
9 * Alternatively, this software may be distributed under the terms of BSD
12 * See README and COPYING for more details.
18 #include "common/defs.h"
19 #include "eap_peer/eap_config.h"
21 #define MAX_SSID_LEN 32
24 #define DEFAULT_EAP_WORKAROUND ((unsigned int) -1)
25 #define DEFAULT_EAPOL_FLAGS (EAPOL_FLAG_REQUIRE_KEY_UNICAST | \
26 EAPOL_FLAG_REQUIRE_KEY_BROADCAST)
27 #define DEFAULT_PROTO (WPA_PROTO_WPA | WPA_PROTO_RSN)
28 #define DEFAULT_KEY_MGMT (WPA_KEY_MGMT_PSK | WPA_KEY_MGMT_IEEE8021X)
29 #define DEFAULT_PAIRWISE (WPA_CIPHER_CCMP | WPA_CIPHER_TKIP)
30 #define DEFAULT_GROUP (WPA_CIPHER_CCMP | WPA_CIPHER_TKIP | \
31 WPA_CIPHER_WEP104 | WPA_CIPHER_WEP40)
32 #define DEFAULT_FRAGMENT_SIZE 1398
34 #define DEFAULT_DISABLE_HT 0
35 #define DEFAULT_DISABLE_HT40 0
36 #define DEFAULT_DISABLE_MAX_AMSDU -1 /* no change */
37 #define DEFAULT_AMPDU_FACTOR -1 /* no change */
38 #define DEFAULT_AMPDU_DENSITY -1 /* no change */
41 * struct wpa_ssid - Network configuration data
43 * This structure includes all the configuration variables for a network. This
44 * data is included in the per-interface configuration data as an element of
45 * the network list, struct wpa_config::ssid. Each network block in the
46 * configuration is mapped to a struct wpa_ssid instance.
50 * next - Next network in global list
52 * This pointer can be used to iterate over all networks. The head of
53 * this list is stored in the ssid field of struct wpa_config.
55 struct wpa_ssid *next;
58 * pnext - Next network in per-priority list
60 * This pointer can be used to iterate over all networks in the same
61 * priority class. The heads of these list are stored in the pssid
62 * fields of struct wpa_config.
64 struct wpa_ssid *pnext;
67 * id - Unique id for the network
69 * This identifier is used as a unique identifier for each network
70 * block when using the control interface. Each network is allocated an
71 * id when it is being created, either when reading the configuration
72 * file or when a new network is added through the control interface.
77 * priority - Priority group
79 * By default, all networks will get same priority group (0). If some
80 * of the networks are more desirable, this field can be used to change
81 * the order in which wpa_supplicant goes through the networks when
82 * selecting a BSS. The priority groups will be iterated in decreasing
83 * priority (i.e., the larger the priority value, the sooner the
84 * network is matched against the scan results). Within each priority
85 * group, networks will be selected based on security policy, signal
88 * Please note that AP scanning with scan_ssid=1 and ap_scan=2 mode are
89 * not using this priority to select the order for scanning. Instead,
90 * they try the networks in the order that used in the configuration
96 * ssid - Service set identifier (network name)
98 * This is the SSID for the network. For wireless interfaces, this is
99 * used to select which network will be used. If set to %NULL (or
100 * ssid_len=0), any SSID can be used. For wired interfaces, this must
101 * be set to %NULL. Note: SSID may contain any characters, even nul
102 * (ASCII 0) and as such, this should not be assumed to be a nul
103 * terminated string. ssid_len defines how many characters are valid
104 * and the ssid field is not guaranteed to be nul terminated.
109 * ssid_len - Length of the SSID
116 * If set, this network block is used only when associating with the AP
117 * using the configured BSSID
119 * If this is a persistent P2P group (disabled == 2), this is the GO
125 * bssid_set - Whether BSSID is configured for this network
130 * psk - WPA pre-shared key (256 bits)
135 * psk_set - Whether PSK field is configured
140 * passphrase - WPA ASCII passphrase
142 * If this is set, psk will be generated using the SSID and passphrase
143 * configured for the network. ASCII passphrase must be between 8 and
144 * 63 characters (inclusive).
149 * pairwise_cipher - Bitfield of allowed pairwise ciphers, WPA_CIPHER_*
154 * group_cipher - Bitfield of allowed group ciphers, WPA_CIPHER_*
159 * key_mgmt - Bitfield of allowed key management protocols
166 * proto - Bitfield of allowed protocols, WPA_PROTO_*
171 * auth_alg - Bitfield of allowed authentication algorithms
178 * scan_ssid - Scan this SSID with Probe Requests
180 * scan_ssid can be used to scan for APs using hidden SSIDs.
181 * Note: Many drivers do not support this. ap_mode=2 can be used with
182 * such drivers to use hidden SSIDs.
186 #ifdef IEEE8021X_EAPOL
187 #define EAPOL_FLAG_REQUIRE_KEY_UNICAST BIT(0)
188 #define EAPOL_FLAG_REQUIRE_KEY_BROADCAST BIT(1)
190 * eapol_flags - Bit field of IEEE 802.1X/EAPOL options (EAPOL_FLAG_*)
195 * eap - EAP peer configuration for this network
197 struct eap_peer_config eap;
198 #endif /* IEEE8021X_EAPOL */
200 #define NUM_WEP_KEYS 4
201 #define MAX_WEP_KEY_LEN 16
205 u8 wep_key[NUM_WEP_KEYS][MAX_WEP_KEY_LEN];
208 * wep_key_len - WEP key lengths
210 size_t wep_key_len[NUM_WEP_KEYS];
213 * wep_tx_keyidx - Default key index for TX frames using WEP
218 * proactive_key_caching - Enable proactive key caching
220 * This field can be used to enable proactive key caching which is also
221 * known as opportunistic PMKSA caching for WPA2. This is disabled (0)
222 * by default. Enable by setting this to 1.
224 * Proactive key caching is used to make supplicant assume that the APs
225 * are using the same PMK and generate PMKSA cache entries without
226 * doing RSN pre-authentication. This requires support from the AP side
227 * and is normally used with wireless switches that co-locate the
230 int proactive_key_caching;
233 * mixed_cell - Whether mixed cells are allowed
235 * This option can be used to configure whether so called mixed cells,
236 * i.e., networks that use both plaintext and encryption in the same
237 * SSID, are allowed. This is disabled (0) by default. Enable by
242 #ifdef IEEE8021X_EAPOL
245 * leap - Number of EAP methods using LEAP
247 * This field should be set to 1 if LEAP is enabled. This is used to
248 * select IEEE 802.11 authentication algorithm.
253 * non_leap - Number of EAP methods not using LEAP
255 * This field should be set to >0 if any EAP method other than LEAP is
256 * enabled. This is used to select IEEE 802.11 authentication
262 * eap_workaround - EAP workarounds enabled
264 * wpa_supplicant supports number of "EAP workarounds" to work around
265 * interoperability issues with incorrectly behaving authentication
266 * servers. This is recommended to be enabled by default because some
267 * of the issues are present in large number of authentication servers.
269 * Strict EAP conformance mode can be configured by disabling
270 * workarounds with eap_workaround = 0.
272 unsigned int eap_workaround;
274 #endif /* IEEE8021X_EAPOL */
277 * mode - IEEE 802.11 operation mode (Infrastucture/IBSS)
279 * 0 = infrastructure (Managed) mode, i.e., associate with an AP.
281 * 1 = IBSS (ad-hoc, peer-to-peer)
283 * 2 = AP (access point)
285 * 3 = P2P Group Owner (can be set in the configuration file)
287 * 4 = P2P Group Formation (used internally; not in configuration
290 * Note: IBSS can only be used with key_mgmt NONE (plaintext and
291 * static WEP) and key_mgmt=WPA-NONE (fixed group key TKIP/CCMP). In
292 * addition, ap_scan has to be set to 2 for IBSS. WPA-None requires
293 * following network block options: proto=WPA, key_mgmt=WPA-NONE,
294 * pairwise=NONE, group=TKIP (or CCMP, but not both), and psk must also
295 * be set (either directly or using ASCII passphrase).
301 WPAS_MODE_P2P_GO = 3,
302 WPAS_MODE_P2P_GROUP_FORMATION = 4,
306 * disabled - Whether this network is currently disabled
308 * 0 = this network can be used (default).
309 * 1 = this network block is disabled (can be enabled through
310 * ctrl_iface, e.g., with wpa_cli or wpa_gui).
311 * 2 = this network block includes parameters for a persistent P2P
312 * group (can be used with P2P ctrl_iface commands)
317 * peerkey - Whether PeerKey handshake for direct links is allowed
319 * This is only used when both RSN/WPA2 and IEEE 802.11e (QoS) are
322 * 0 = disabled (default)
328 * id_str - Network identifier string for external scripts
330 * This value is passed to external ctrl_iface monitors in
331 * WPA_EVENT_CONNECTED event and wpa_cli sets this as WPA_ID_STR
332 * environment variable for action scripts.
336 #ifdef CONFIG_IEEE80211W
338 * ieee80211w - Whether management frame protection is enabled
340 * This value is used to configure policy for management frame
341 * protection (IEEE 802.11w). 0 = disabled, 1 = optional, 2 = required.
343 enum mfp_options ieee80211w;
344 #endif /* CONFIG_IEEE80211W */
347 * frequency - Channel frequency in megahertz (MHz) for IBSS
349 * This value is used to configure the initial channel for IBSS (adhoc)
350 * networks, e.g., 2412 = IEEE 802.11b/g channel 1. It is ignored in
351 * the infrastructure mode. In addition, this value is only used by the
352 * station that creates the IBSS. If an IBSS network with the
353 * configured SSID is already present, the frequency of the network
354 * will be used instead of this configured value.
359 * wpa_ptk_rekey - Maximum lifetime for PTK in seconds
361 * This value can be used to enforce rekeying of PTK to mitigate some
362 * attacks against TKIP deficiencies.
367 * scan_freq - Array of frequencies to scan or %NULL for all
369 * This is an optional zero-terminated array of frequencies in
370 * megahertz (MHz) to include in scan requests when searching for this
371 * network. This can be used to speed up scanning when the network is
372 * known to not use all possible channels.
377 * bgscan - Background scan and roaming parameters or %NULL if none
379 * This is an optional set of parameters for background scanning and
380 * roaming within a network (ESS) in following format:
381 * <bgscan module name>:<module parameters>
386 * freq_list - Array of allowed frequencies or %NULL for all
388 * This is an optional zero-terminated array of frequencies in
389 * megahertz (MHz) to allow for selecting the BSS. If set, scan results
390 * that do not match any of the specified frequencies are not
391 * considered when selecting a BSS.
396 * p2p_client_list - List of P2P Clients in a persistent group (GO)
398 * This is a list of P2P Clients (P2P Device Address) that have joined
399 * the persistent group. This is maintained on the GO for persistent
400 * group entries (disabled == 2).
405 * num_p2p_clients - Number of entries in p2p_client_list
407 size_t num_p2p_clients;
410 * p2p_group - Network generated as a P2P group (used internally)
415 * p2p_persistent_group - Whether this is a persistent group
417 int p2p_persistent_group;
420 * temporary - Whether this network is temporary and not to be saved
425 * export_keys - Whether keys may be exported
427 * This attribute will be set when keys are determined through
428 * WPS or similar so that they may be exported.
432 #ifdef CONFIG_HT_OVERRIDES
434 * disable_ht - Disable HT (IEEE 802.11n) for this network
436 * By default, use it if it is available, but this can be configured
437 * to 1 to have it disabled.
442 * disable_ht40 - Disable HT40 for this network
444 * By default, use it if it is available, but this can be configured
445 * to 1 to have it disabled.
450 * disable_max_amsdu - Disable MAX A-MSDU
452 * A-MDSU will be 3839 bytes when disabled, or 7935
453 * when enabled (assuming it is otherwise supported)
454 * -1 (default) means do not apply any settings to the kernel.
456 int disable_max_amsdu;
459 * ampdu_factor - Maximum A-MPDU Length Exponent
461 * Value: 0-3, see 7.3.2.56.3 in IEEE Std 802.11n-2009.
466 * ampdu_density - Minimum A-MPDU Start Spacing
468 * Value: 0-7, see 7.3.2.56.3 in IEEE Std 802.11n-2009.
473 * ht_mcs - Allowed HT-MCS rates, in ASCII hex: ffff0000...
475 * By default (empty string): Use whatever the OS has configured.
478 #endif /* CONFIG_HT_OVERRIDES */
481 #endif /* CONFIG_SSID_H */