572 lines
16 KiB
C
572 lines
16 KiB
C
/*
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* WPA Supplicant / Network configuration structures
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* Copyright (c) 2003-2008, Jouni Malinen <j@w1.fi>
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*
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* This software may be distributed under the terms of the BSD license.
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* See README for more details.
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*/
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#ifndef CONFIG_SSID_H
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#define CONFIG_SSID_H
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#include "common/defs.h"
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#include "eap_peer/eap_config.h"
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#define MAX_SSID_LEN 32
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#define DEFAULT_EAP_WORKAROUND ((unsigned int) -1)
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#define DEFAULT_EAPOL_FLAGS (EAPOL_FLAG_REQUIRE_KEY_UNICAST | \
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EAPOL_FLAG_REQUIRE_KEY_BROADCAST)
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#define DEFAULT_PROTO (WPA_PROTO_WPA | WPA_PROTO_RSN)
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#define DEFAULT_KEY_MGMT (WPA_KEY_MGMT_PSK | WPA_KEY_MGMT_IEEE8021X)
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#define DEFAULT_PAIRWISE (WPA_CIPHER_CCMP | WPA_CIPHER_TKIP)
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#define DEFAULT_GROUP (WPA_CIPHER_CCMP | WPA_CIPHER_TKIP | \
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WPA_CIPHER_WEP104 | WPA_CIPHER_WEP40)
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#define DEFAULT_FRAGMENT_SIZE 1398
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#define DEFAULT_BG_SCAN_PERIOD -1
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#define DEFAULT_DISABLE_HT 0
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#define DEFAULT_DISABLE_HT40 0
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#define DEFAULT_DISABLE_SGI 0
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#define DEFAULT_DISABLE_MAX_AMSDU -1 /* no change */
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#define DEFAULT_AMPDU_FACTOR -1 /* no change */
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#define DEFAULT_AMPDU_DENSITY -1 /* no change */
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/**
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* struct wpa_ssid - Network configuration data
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*
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* This structure includes all the configuration variables for a network. This
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* data is included in the per-interface configuration data as an element of
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* the network list, struct wpa_config::ssid. Each network block in the
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* configuration is mapped to a struct wpa_ssid instance.
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*/
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struct wpa_ssid {
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/**
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* next - Next network in global list
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*
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* This pointer can be used to iterate over all networks. The head of
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* this list is stored in the ssid field of struct wpa_config.
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*/
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struct wpa_ssid *next;
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/**
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* pnext - Next network in per-priority list
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*
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* This pointer can be used to iterate over all networks in the same
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* priority class. The heads of these list are stored in the pssid
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* fields of struct wpa_config.
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*/
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struct wpa_ssid *pnext;
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/**
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* id - Unique id for the network
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*
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* This identifier is used as a unique identifier for each network
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* block when using the control interface. Each network is allocated an
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* id when it is being created, either when reading the configuration
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* file or when a new network is added through the control interface.
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*/
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int id;
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/**
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* priority - Priority group
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*
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* By default, all networks will get same priority group (0). If some
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* of the networks are more desirable, this field can be used to change
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* the order in which wpa_supplicant goes through the networks when
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* selecting a BSS. The priority groups will be iterated in decreasing
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* priority (i.e., the larger the priority value, the sooner the
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* network is matched against the scan results). Within each priority
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* group, networks will be selected based on security policy, signal
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* strength, etc.
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*
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* Please note that AP scanning with scan_ssid=1 and ap_scan=2 mode are
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* not using this priority to select the order for scanning. Instead,
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* they try the networks in the order that used in the configuration
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* file.
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*/
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int priority;
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/**
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* ssid - Service set identifier (network name)
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*
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* This is the SSID for the network. For wireless interfaces, this is
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* used to select which network will be used. If set to %NULL (or
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* ssid_len=0), any SSID can be used. For wired interfaces, this must
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* be set to %NULL. Note: SSID may contain any characters, even nul
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* (ASCII 0) and as such, this should not be assumed to be a nul
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* terminated string. ssid_len defines how many characters are valid
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* and the ssid field is not guaranteed to be nul terminated.
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*/
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u8 *ssid;
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/**
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* ssid_len - Length of the SSID
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*/
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size_t ssid_len;
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/**
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* bssid - BSSID
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*
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* If set, this network block is used only when associating with the AP
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* using the configured BSSID
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*
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* If this is a persistent P2P group (disabled == 2), this is the GO
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* Device Address.
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*/
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u8 bssid[ETH_ALEN];
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/**
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* bssid_set - Whether BSSID is configured for this network
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*/
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int bssid_set;
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/**
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* psk - WPA pre-shared key (256 bits)
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*/
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u8 psk[32];
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/**
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* psk_set - Whether PSK field is configured
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*/
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int psk_set;
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/**
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* passphrase - WPA ASCII passphrase
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*
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* If this is set, psk will be generated using the SSID and passphrase
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* configured for the network. ASCII passphrase must be between 8 and
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* 63 characters (inclusive).
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*/
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char *passphrase;
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/**
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* ext_psk - PSK/passphrase name in external storage
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*
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* If this is set, PSK/passphrase will be fetched from external storage
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* when requesting association with the network.
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*/
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char *ext_psk;
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/**
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* pairwise_cipher - Bitfield of allowed pairwise ciphers, WPA_CIPHER_*
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*/
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int pairwise_cipher;
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/**
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* group_cipher - Bitfield of allowed group ciphers, WPA_CIPHER_*
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*/
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int group_cipher;
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/**
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* key_mgmt - Bitfield of allowed key management protocols
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*
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* WPA_KEY_MGMT_*
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*/
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int key_mgmt;
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/**
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* bg_scan_period - Background scan period in seconds, 0 to disable, or
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* -1 to indicate no change to default driver configuration
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*/
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int bg_scan_period;
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/**
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* proto - Bitfield of allowed protocols, WPA_PROTO_*
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*/
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int proto;
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/**
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* auth_alg - Bitfield of allowed authentication algorithms
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*
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* WPA_AUTH_ALG_*
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*/
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int auth_alg;
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/**
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* scan_ssid - Scan this SSID with Probe Requests
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*
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* scan_ssid can be used to scan for APs using hidden SSIDs.
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* Note: Many drivers do not support this. ap_mode=2 can be used with
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* such drivers to use hidden SSIDs.
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*/
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int scan_ssid;
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#ifdef IEEE8021X_EAPOL
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#define EAPOL_FLAG_REQUIRE_KEY_UNICAST BIT(0)
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#define EAPOL_FLAG_REQUIRE_KEY_BROADCAST BIT(1)
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/**
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* eapol_flags - Bit field of IEEE 802.1X/EAPOL options (EAPOL_FLAG_*)
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*/
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int eapol_flags;
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/**
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* eap - EAP peer configuration for this network
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*/
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struct eap_peer_config eap;
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#endif /* IEEE8021X_EAPOL */
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#define NUM_WEP_KEYS 4
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#define MAX_WEP_KEY_LEN 16
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/**
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* wep_key - WEP keys
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*/
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u8 wep_key[NUM_WEP_KEYS][MAX_WEP_KEY_LEN];
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/**
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* wep_key_len - WEP key lengths
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*/
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size_t wep_key_len[NUM_WEP_KEYS];
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/**
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* wep_tx_keyidx - Default key index for TX frames using WEP
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*/
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int wep_tx_keyidx;
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/**
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* proactive_key_caching - Enable proactive key caching
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*
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* This field can be used to enable proactive key caching which is also
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* known as opportunistic PMKSA caching for WPA2. This is disabled (0)
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* by default unless default value is changed with the global okc=1
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* parameter. Enable by setting this to 1.
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*
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* Proactive key caching is used to make supplicant assume that the APs
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* are using the same PMK and generate PMKSA cache entries without
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* doing RSN pre-authentication. This requires support from the AP side
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* and is normally used with wireless switches that co-locate the
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* authenticator.
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*
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* Internally, special value -1 is used to indicate that the parameter
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* was not specified in the configuration (i.e., default behavior is
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* followed).
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*/
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int proactive_key_caching;
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/**
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* mixed_cell - Whether mixed cells are allowed
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*
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* This option can be used to configure whether so called mixed cells,
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* i.e., networks that use both plaintext and encryption in the same
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* SSID, are allowed. This is disabled (0) by default. Enable by
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* setting this to 1.
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*/
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int mixed_cell;
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#ifdef IEEE8021X_EAPOL
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/**
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* leap - Number of EAP methods using LEAP
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*
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* This field should be set to 1 if LEAP is enabled. This is used to
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* select IEEE 802.11 authentication algorithm.
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*/
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int leap;
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/**
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* non_leap - Number of EAP methods not using LEAP
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*
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* This field should be set to >0 if any EAP method other than LEAP is
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* enabled. This is used to select IEEE 802.11 authentication
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* algorithm.
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*/
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int non_leap;
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/**
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* eap_workaround - EAP workarounds enabled
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*
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* wpa_supplicant supports number of "EAP workarounds" to work around
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* interoperability issues with incorrectly behaving authentication
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* servers. This is recommended to be enabled by default because some
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* of the issues are present in large number of authentication servers.
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*
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* Strict EAP conformance mode can be configured by disabling
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* workarounds with eap_workaround = 0.
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*/
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unsigned int eap_workaround;
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#endif /* IEEE8021X_EAPOL */
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/**
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* mode - IEEE 802.11 operation mode (Infrastucture/IBSS)
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*
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* 0 = infrastructure (Managed) mode, i.e., associate with an AP.
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*
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* 1 = IBSS (ad-hoc, peer-to-peer)
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*
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* 2 = AP (access point)
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*
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* 3 = P2P Group Owner (can be set in the configuration file)
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*
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* 4 = P2P Group Formation (used internally; not in configuration
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* files)
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*
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* Note: IBSS can only be used with key_mgmt NONE (plaintext and
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* static WEP) and key_mgmt=WPA-NONE (fixed group key TKIP/CCMP). In
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* addition, ap_scan has to be set to 2 for IBSS. WPA-None requires
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* following network block options: proto=WPA, key_mgmt=WPA-NONE,
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* pairwise=NONE, group=TKIP (or CCMP, but not both), and psk must also
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* be set (either directly or using ASCII passphrase).
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*/
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enum wpas_mode {
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WPAS_MODE_INFRA = 0,
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WPAS_MODE_IBSS = 1,
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WPAS_MODE_AP = 2,
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WPAS_MODE_P2P_GO = 3,
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WPAS_MODE_P2P_GROUP_FORMATION = 4,
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} mode;
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/**
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* disabled - Whether this network is currently disabled
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*
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* 0 = this network can be used (default).
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* 1 = this network block is disabled (can be enabled through
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* ctrl_iface, e.g., with wpa_cli or wpa_gui).
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* 2 = this network block includes parameters for a persistent P2P
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* group (can be used with P2P ctrl_iface commands)
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*/
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int disabled;
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/**
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* disabled_for_connect - Whether this network was temporarily disabled
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*
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* This flag is used to reenable all the temporarily disabled networks
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* after either the success or failure of a WPS connection.
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*/
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int disabled_for_connect;
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/**
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* peerkey - Whether PeerKey handshake for direct links is allowed
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*
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* This is only used when both RSN/WPA2 and IEEE 802.11e (QoS) are
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* enabled.
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*
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* 0 = disabled (default)
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* 1 = enabled
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*/
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int peerkey;
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/**
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* id_str - Network identifier string for external scripts
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*
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* This value is passed to external ctrl_iface monitors in
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* WPA_EVENT_CONNECTED event and wpa_cli sets this as WPA_ID_STR
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* environment variable for action scripts.
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*/
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char *id_str;
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#ifdef CONFIG_IEEE80211W
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/**
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* ieee80211w - Whether management frame protection is enabled
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*
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* This value is used to configure policy for management frame
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* protection (IEEE 802.11w). 0 = disabled, 1 = optional, 2 = required.
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* This is disabled by default unless the default value has been changed
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* with the global pmf=1/2 parameter.
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*
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* Internally, special value 3 is used to indicate that the parameter
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* was not specified in the configuration (i.e., default behavior is
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* followed).
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*/
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enum mfp_options ieee80211w;
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#endif /* CONFIG_IEEE80211W */
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/**
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* frequency - Channel frequency in megahertz (MHz) for IBSS
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*
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* This value is used to configure the initial channel for IBSS (adhoc)
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* networks, e.g., 2412 = IEEE 802.11b/g channel 1. It is ignored in
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* the infrastructure mode. In addition, this value is only used by the
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* station that creates the IBSS. If an IBSS network with the
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* configured SSID is already present, the frequency of the network
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* will be used instead of this configured value.
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*/
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int frequency;
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int ht40;
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/**
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* wpa_ptk_rekey - Maximum lifetime for PTK in seconds
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*
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* This value can be used to enforce rekeying of PTK to mitigate some
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* attacks against TKIP deficiencies.
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*/
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int wpa_ptk_rekey;
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/**
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* scan_freq - Array of frequencies to scan or %NULL for all
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*
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* This is an optional zero-terminated array of frequencies in
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* megahertz (MHz) to include in scan requests when searching for this
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* network. This can be used to speed up scanning when the network is
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* known to not use all possible channels.
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*/
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int *scan_freq;
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/**
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* bgscan - Background scan and roaming parameters or %NULL if none
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*
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* This is an optional set of parameters for background scanning and
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* roaming within a network (ESS) in following format:
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* <bgscan module name>:<module parameters>
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*/
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char *bgscan;
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/**
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* ignore_broadcast_ssid - Hide SSID in AP mode
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*
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* Send empty SSID in beacons and ignore probe request frames that do
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* not specify full SSID, i.e., require stations to know SSID.
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* default: disabled (0)
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* 1 = send empty (length=0) SSID in beacon and ignore probe request
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* for broadcast SSID
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* 2 = clear SSID (ASCII 0), but keep the original length (this may be
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* required with some clients that do not support empty SSID) and
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* ignore probe requests for broadcast SSID
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*/
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int ignore_broadcast_ssid;
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/**
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* freq_list - Array of allowed frequencies or %NULL for all
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*
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* This is an optional zero-terminated array of frequencies in
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* megahertz (MHz) to allow for selecting the BSS. If set, scan results
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* that do not match any of the specified frequencies are not
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* considered when selecting a BSS.
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*/
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int *freq_list;
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/**
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* p2p_client_list - List of P2P Clients in a persistent group (GO)
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*
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* This is a list of P2P Clients (P2P Device Address) that have joined
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* the persistent group. This is maintained on the GO for persistent
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* group entries (disabled == 2).
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*/
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u8 *p2p_client_list;
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/**
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* num_p2p_clients - Number of entries in p2p_client_list
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*/
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size_t num_p2p_clients;
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#ifndef P2P_MAX_STORED_CLIENTS
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#define P2P_MAX_STORED_CLIENTS 100
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#endif /* P2P_MAX_STORED_CLIENTS */
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/**
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* p2p_group - Network generated as a P2P group (used internally)
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*/
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int p2p_group;
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/**
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* p2p_persistent_group - Whether this is a persistent group
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*/
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int p2p_persistent_group;
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/**
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* temporary - Whether this network is temporary and not to be saved
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*/
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int temporary;
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/**
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* export_keys - Whether keys may be exported
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*
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* This attribute will be set when keys are determined through
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* WPS or similar so that they may be exported.
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*/
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int export_keys;
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#ifdef CONFIG_HT_OVERRIDES
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/**
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* disable_ht - Disable HT (IEEE 802.11n) for this network
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*
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* By default, use it if it is available, but this can be configured
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* to 1 to have it disabled.
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*/
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int disable_ht;
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/**
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* disable_ht40 - Disable HT40 for this network
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*
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* By default, use it if it is available, but this can be configured
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* to 1 to have it disabled.
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*/
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int disable_ht40;
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/**
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* disable_sgi - Disable SGI (Short Guard Interval) for this network
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*
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* By default, use it if it is available, but this can be configured
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* to 1 to have it disabled.
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*/
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int disable_sgi;
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/**
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* disable_max_amsdu - Disable MAX A-MSDU
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*
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* A-MDSU will be 3839 bytes when disabled, or 7935
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* when enabled (assuming it is otherwise supported)
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* -1 (default) means do not apply any settings to the kernel.
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*/
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int disable_max_amsdu;
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/**
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* ampdu_factor - Maximum A-MPDU Length Exponent
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*
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* Value: 0-3, see 7.3.2.56.3 in IEEE Std 802.11n-2009.
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*/
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int ampdu_factor;
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/**
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* ampdu_density - Minimum A-MPDU Start Spacing
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*
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* Value: 0-7, see 7.3.2.56.3 in IEEE Std 802.11n-2009.
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*/
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int ampdu_density;
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/**
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* ht_mcs - Allowed HT-MCS rates, in ASCII hex: ffff0000...
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*
|
|
* By default (empty string): Use whatever the OS has configured.
|
|
*/
|
|
char *ht_mcs;
|
|
#endif /* CONFIG_HT_OVERRIDES */
|
|
|
|
/**
|
|
* ap_max_inactivity - Timeout in seconds to detect STA's inactivity
|
|
*
|
|
* This timeout value is used in AP mode to clean up inactive stations.
|
|
* By default: 300 seconds.
|
|
*/
|
|
int ap_max_inactivity;
|
|
|
|
/**
|
|
* dtim_period - DTIM period in Beacon intervals
|
|
* By default: 2
|
|
*/
|
|
int dtim_period;
|
|
|
|
/**
|
|
* auth_failures - Number of consecutive authentication failures
|
|
*/
|
|
unsigned int auth_failures;
|
|
|
|
/**
|
|
* disabled_until - Network block disabled until this time if non-zero
|
|
*/
|
|
struct os_time disabled_until;
|
|
|
|
/**
|
|
* parent_cred - Pointer to parent wpa_cred entry
|
|
*
|
|
* This pointer can be used to delete temporary networks when a wpa_cred
|
|
* that was used to create them is removed. This pointer should not be
|
|
* dereferences since it may not be updated in all cases.
|
|
*/
|
|
void *parent_cred;
|
|
};
|
|
|
|
#endif /* CONFIG_SSID_H */
|