config_ssid.h

一个Linux下无线网卡的设置工具

/*
 * WPA Supplicant / Network configuration structures
 * Copyright (c) 2003-2005, Jouni Malinen <[e-mail]>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 *
 * Alternatively, this software may be distributed under the terms of BSD
 * license.
 *
 * See README and COPYING for more details.
 */

#ifndef CONFIG_SSID_H
#define CONFIG_SSID_H

#define WPA_CIPHER_NONE BIT(0)
#define WPA_CIPHER_WEP40 BIT(1)
#define WPA_CIPHER_WEP104 BIT(2)
#define WPA_CIPHER_TKIP BIT(3)
#define WPA_CIPHER_CCMP BIT(4)

#define WPA_KEY_MGMT_IEEE8021X BIT(0)
#define WPA_KEY_MGMT_PSK BIT(1)
#define WPA_KEY_MGMT_NONE BIT(2)
#define WPA_KEY_MGMT_IEEE8021X_NO_WPA BIT(3)
#define WPA_KEY_MGMT_WPA_NONE BIT(4)

#define WPA_PROTO_WPA BIT(0)
#define WPA_PROTO_RSN BIT(1)

#define WPA_AUTH_ALG_OPEN BIT(0)
#define WPA_AUTH_ALG_SHARED BIT(1)
#define WPA_AUTH_ALG_LEAP BIT(2)

#define MAX_SSID_LEN 32
#define PMK_LEN 32
#define EAP_PSK_LEN 16


#define DEFAULT_EAP_WORKAROUND ((unsigned int) -1)
#define DEFAULT_EAPOL_FLAGS (EAPOL_FLAG_REQUIRE_KEY_UNICAST | \
			     EAPOL_FLAG_REQUIRE_KEY_BROADCAST)
#define DEFAULT_PROTO (WPA_PROTO_WPA | WPA_PROTO_RSN)
#define DEFAULT_KEY_MGMT (WPA_KEY_MGMT_PSK | WPA_KEY_MGMT_IEEE8021X)
#define DEFAULT_PAIRWISE (WPA_CIPHER_CCMP | WPA_CIPHER_TKIP)
#define DEFAULT_GROUP (WPA_CIPHER_CCMP | WPA_CIPHER_TKIP | \
		       WPA_CIPHER_WEP104 | WPA_CIPHER_WEP40)

/**
 * struct wpa_ssid - Network configuration data
 *
 * This structure includes all the configuration variables for a network. This
 * data is included in the per-interface configuration data as an element of
 * the network list, struct wpa_config::ssid. Each network block in the
 * configuration is mapped to a struct wpa_ssid instance.
 */
struct wpa_ssid {
	/**
	 * next - Next network in global list
	 *
	 * This pointer can be used to iterate over all networks. The head of
	 * this list is stored in the ssid field of struct wpa_config.
	 */
	struct wpa_ssid *next;

	/**
	 * pnext - Next network in per-priority list
	 *
	 * This pointer can be used to iterate over all networks in the same
	 * priority class. The heads of these list are stored in the pssid
	 * fields of struct wpa_config.
	 */
	struct wpa_ssid *pnext;

	/**
	 * id - Unique id for the network
	 *
	 * This identifier is used as a unique identifier for each network
	 * block when using the control interface. Each network is allocated an
	 * id when it is being created, either when reading the configuration
	 * file or when a new network is added through the control interface.
	 */
	int id;

	/**
	 * priority - Priority group
	 *
	 * By default, all networks will get same priority group (0). If some
	 * of the networks are more desirable, this field can be used to change
	 * the order in which wpa_supplicant goes through the networks when
	 * selecting a BSS. The priority groups will be iterated in decreasing
	 * priority (i.e., the larger the priority value, the sooner the
	 * network is matched against the scan results). Within each priority
	 * group, networks will be selected based on security policy, signal
	 * strength, etc.
	 *
	 * Please note that AP scanning with scan_ssid=1 and ap_scan=2 mode are
	 * not using this priority to select the order for scanning. Instead,
	 * they try the networks in the order that used in the configuration
	 * file.
	 */
	int priority;

	/**
	 * ssid - Service set identifier (network name)
	 *
	 * This is the SSID for the network. For wireless interfaces, this is
	 * used to select which network will be used. If set to %NULL (or
	 * ssid_len=0), any SSID can be used. For wired interfaces, this must
	 * be set to %NULL. Note: SSID may contain any characters, even nul
	 * (ASCII 0) and as such, this should not be assumed to be a nul
	 * terminated string. ssid_len defines how many characters are valid
	 * and the ssid field is not guaranteed to be nul terminated.
	 */
	u8 *ssid;

	/**
	 * ssid_len - Length of the SSID
	 */
	size_t ssid_len;

	/**
	 * bssid - BSSID
	 *
	 * If set, this network block is used only when associating with the AP
	 * using the configured BSSID
	 */
	u8 bssid[ETH_ALEN];

	/**
	 * bssid_set - Whether BSSID is configured for this network
	 */
	int bssid_set;

	/**
	 * psk - WPA pre-shared key (256 bits)
	 */
	u8 psk[PMK_LEN];

	/**
	 * psk_set - Whether PSK field is configured
	 */
	int psk_set;

	/**
	 * passphrase - WPA ASCII passphrase
	 *
	 * If this is set, psk will be generated using the SSID and passphrase
	 * configured for the network. ASCII passphrase must be between 8 and
	 * 63 characters (inclusive).
	 */
	char *passphrase;

	/**
	 * pairwise_cipher - Bitfield of allowed pairwise ciphers, WPA_CIPHER_*
	 */
	int pairwise_cipher;

	/**
	 * group_cipher - Bitfield of allowed group ciphers, WPA_CIPHER_*
	 */
	int group_cipher;

	/**
	 * key_mgmt - Bitfield of allowed key management protocols
	 *
	 * WPA_KEY_MGMT_*
	 */
	int key_mgmt;

	/**
	 * proto - Bitfield of allowed protocols, WPA_PROTO_*
	 */
	int proto;

	/**
	 * auth_alg -  Bitfield of allowed authentication algorithms
	 *
	 * WPA_AUTH_ALG_*
	 */
	int auth_alg;

	/**
	 * scan_ssid - Scan this SSID with Probe Requests
	 *
	 * scan_ssid can be used to scan for APs using hidden SSIDs.
	 * Note: Many drivers do not support this. ap_mode=2 can be used with
	 * such drivers to use hidden SSIDs.
	 */
	int scan_ssid;

	/**
	 * identity - EAP Identity
	 */
	u8 *identity;

	/**
	 * identity_len - EAP Identity length
	 */
	size_t identity_len;

	/**
	 * anonymous_identity -  Anonymous EAP Identity
	 *
	 * This field is used for unencrypted use with EAP types that support
	 * different tunnelled identity, e.g., EAP-TTLS, in order to reveal the
	 * real identity (identity field) only to the authentication server.
	 */
	u8 *anonymous_identity;

	/**
	 * anonymous_identity_len - Length of anonymous_identity
	 */
	size_t anonymous_identity_len;

	/**
	 * eappsk - EAP-PSK pre-shared key
	 */
	u8 *eappsk;

	/**
	 * eappsk_len - EAP-PSK pre-shared key length
	 *
	 * This field is always 16 for the current version of EAP-PSK.
	 */
	size_t eappsk_len;

	/**
	 * nai - User NAI (for EAP-PSK/PAX)
	 */
	u8 *nai;

	/**
	 * nai_len - Length of nai field
	 */
	size_t nai_len;

	/**
	 * password - Password string for EAP
	 */
	u8 *password;

	/**
	 * password_len - Length of password field
	 */
	size_t password_len;

	/**
	 * ca_cert - File path to CA certificate file (PEM/DER)
	 *
	 * This file can have one or more trusted CA certificates. If ca_cert
	 * and ca_path are not included, server certificate will not be
	 * verified. This is insecure and a trusted CA certificate should
	 * always be configured when using EAP-TLS/TTLS/PEAP. Full path to the
	 * file should be used since working directory may change when
	 * wpa_supplicant is run in the background.
	 *
	 * Alternatively, a named configuration blob can be used by setting
	 * this to blob://<blob name>.
	 *
	 * On Windows, trusted CA certificates can be loaded from the system
	 * certificate store by setting this to cert_store://<name>, e.g.,
	 * ca_cert="cert_store://CA" or ca_cert="cert_store://ROOT".
	 */
	u8 *ca_cert;

	/**
	 * ca_path - Directory path for CA certificate files (PEM)
	 *
	 * This path may contain multiple CA certificates in OpenSSL format.
	 * Common use for this is to point to system trusted CA list which is
	 * often installed into directory like /etc/ssl/certs. If configured,
	 * these certificates are added to the list of trusted CAs. ca_cert
	 * may also be included in that case, but it is not required.
	 */
	u8 *ca_path;

	/**
	 * client_cert - File path to client certificate file (PEM/DER)
	 *
	 * This field is used with EAP method that use TLS authentication.
	 * Usually, this is only configured for EAP-TLS, even though this could
	 * in theory be used with EAP-TTLS and EAP-PEAP, too. Full path to the
	 * file should be used since working directory may change when
	 * wpa_supplicant is run in the background.
	 *
	 * Alternatively, a named configuration blob can be used by setting
	 * this to blob://<blob name>.
	 */
	u8 *client_cert;

	/**
	 * private_key - File path to client private key file (PEM/DER/PFX)
	 *
	 * When PKCS#12/PFX file (.p12/.pfx) is used, client_cert should be
	 * commented out. Both the private key and certificate will be read
	 * from the PKCS#12 file in this case. Full path to the file should be
	 * used since working directory may change when wpa_supplicant is run
	 * in the background.
	 *
	 * Windows certificate store can be used by leaving client_cert out and
	 * configuring private_key in one of the following formats:
	 *
	 * cert://substring_to_match
	 *
	 * hash://certificate_thumbprint_in_hex
	 *
	 * For example: private_key="hash://63093aa9c47f56ae88334c7b65a4"
	 *
	 * Alternatively, a named configuration blob can be used by setting
	 * this to blob://<blob name>.
	 */
	u8 *private_key;

	/**
	 * private_key_passwd - Password for private key file
	 *
	 * If left out, this will be asked through control interface.
	 */
	u8 *private_key_passwd;

	/**
	 * dh_file - File path to DH/DSA parameters file (in PEM format)
	 *
	 * This is an optional configuration file for setting parameters for an
	 * ephemeral DH key exchange. In most cases, the default RSA
	 * authentication does not use this configuration. However, it is
	 * possible setup RSA to use ephemeral DH key exchange. In addition,
	 * ciphers with DSA keys always use ephemeral DH keys. This can be used
	 * to achieve forward secrecy. If the file is in DSA parameters format,
	 * it will be automatically converted into DH params. Full path to the
	 * file should be used since working directory may change when
	 * wpa_supplicant is run in the background.
	 *
	 * Alternatively, a named configuration blob can be used by setting
	 * this to blob://<blob name>.
	 */
	u8 *dh_file;

	/**
	 * subject_match - Constraint for server certificate subject
	 *
	 * This substring is matched against the subject of the authentication
	 * server certificate. If this string is set, the server sertificate is
	 * only accepted if it contains this string in the subject. The subject
	 * string is in following format:
	 *
	 * /C=US/ST=CA/L=San Francisco/CN=Test AS/emailAddress=[e-mail]
	 */
	u8 *subject_match;

	/**
	 * altsubject_match - Constraint for server certificate alt. subject
	 *
	 * This substring is matched against the alternative subject name of
	 * the authentication server certificate. If this string is set, the
	 * server sertificate is only accepted if it contains this string in an
	 * alternative subject name extension.
	 *
	 * altSubjectName string is in following format: TYPE:VALUE
	 *
	 * Example: DNS:server.example.com
	 *
	 * Following types are supported: EMAIL, DNS, URI
	 */
	u8 *altsubject_match;

	/**
	 * ca_cert2 - File path to CA certificate file (PEM/DER) (Phase 2)
	 *
	 * This file can have one or more trusted CA certificates. If ca_cert2
	 * and ca_path2 are not included, server certificate will not be
	 * verified. This is insecure and a trusted CA certificate should
	 * always be configured. Full path to the file should be used since
	 * working directory may change when wpa_supplicant is run in the
	 * background.
	 *
	 * This field is like ca_cert, but used for phase 2 (inside
	 * EAP-TTLS/PEAP/FAST tunnel) authentication.
	 *
	 * Alternatively, a named configuration blob can be used by setting
	 * this to blob://<blob name>.
	 */