hostapd/wpa_supplicant/config.h
Jouni Malinen d2d16e3100 Use size_t instead of int or unsigned int for configuration items
While int and unsigned int are not going overflow in practice as 32-bit
values, these could at least in theory hit an integer overflow with
16-bit int. Use size_t to avoid such potential issue cases.

Signed-off-by: Jouni Malinen <j@w1.fi>
2020-03-22 18:50:04 +02:00

1668 lines
51 KiB
C

/*
* WPA Supplicant / Configuration file structures
* Copyright (c) 2003-2012, Jouni Malinen <j@w1.fi>
*
* This software may be distributed under the terms of the BSD license.
* See README for more details.
*/
#ifndef CONFIG_H
#define CONFIG_H
#define DEFAULT_EAPOL_VERSION 1
#ifdef CONFIG_NO_SCAN_PROCESSING
#define DEFAULT_AP_SCAN 2
#else /* CONFIG_NO_SCAN_PROCESSING */
#define DEFAULT_AP_SCAN 1
#endif /* CONFIG_NO_SCAN_PROCESSING */
#define DEFAULT_USER_MPM 1
#define DEFAULT_MAX_PEER_LINKS 99
#define DEFAULT_MESH_MAX_INACTIVITY 300
/*
* The default dot11RSNASAERetransPeriod is defined as 40 ms in the standard,
* but use 1000 ms in practice to avoid issues on low power CPUs.
*/
#define DEFAULT_DOT11_RSNA_SAE_RETRANS_PERIOD 1000
#define DEFAULT_FAST_REAUTH 1
#define DEFAULT_P2P_GO_INTENT 7
#define DEFAULT_P2P_INTRA_BSS 1
#define DEFAULT_P2P_GO_MAX_INACTIVITY (5 * 60)
#define DEFAULT_P2P_OPTIMIZE_LISTEN_CHAN 0
#define DEFAULT_BSS_MAX_COUNT 200
#define DEFAULT_BSS_EXPIRATION_AGE 180
#define DEFAULT_BSS_EXPIRATION_SCAN_COUNT 2
#define DEFAULT_MAX_NUM_STA 128
#define DEFAULT_AP_ISOLATE 0
#define DEFAULT_ACCESS_NETWORK_TYPE 15
#define DEFAULT_SCAN_CUR_FREQ 0
#define DEFAULT_P2P_SEARCH_DELAY 500
#define DEFAULT_RAND_ADDR_LIFETIME 60
#define DEFAULT_KEY_MGMT_OFFLOAD 1
#define DEFAULT_CERT_IN_CB 1
#define DEFAULT_P2P_GO_CTWINDOW 0
#define DEFAULT_WPA_RSC_RELAXATION 1
#define DEFAULT_MBO_CELL_CAPA MBO_CELL_CAPA_NOT_SUPPORTED
#define DEFAULT_DISASSOC_IMMINENT_RSSI_THRESHOLD -75
#define DEFAULT_OCE_SUPPORT OCE_STA
#include "config_ssid.h"
#include "wps/wps.h"
#include "common/ieee802_11_defs.h"
#include "common/ieee802_11_common.h"
#define MAX_ROAMING_CONS 36
#define MAX_ROAMING_CONS_OI_LEN 15
struct wpa_cred {
/**
* next - Next credential in the list
*
* This pointer can be used to iterate over all credentials. The head
* of this list is stored in the cred field of struct wpa_config.
*/
struct wpa_cred *next;
/**
* id - Unique id for the credential
*
* This identifier is used as a unique identifier for each credential
* block when using the control interface. Each credential is allocated
* an id when it is being created, either when reading the
* configuration file or when a new credential is added through the
* control interface.
*/
int id;
/**
* temporary - Whether this credential is temporary and not to be saved
*/
int temporary;
/**
* priority - Priority group
*
* By default, all networks and credentials get the same priority group
* (0). This field can be used to give higher priority for credentials
* (and similarly in struct wpa_ssid for network blocks) to change the
* Interworking automatic networking selection behavior. The matching
* network (based on either an enabled network block or a credential)
* with the highest priority value will be selected.
*/
int priority;
/**
* pcsc - Use PC/SC and SIM/USIM card
*/
int pcsc;
/**
* realm - Home Realm for Interworking
*/
char *realm;
/**
* username - Username for Interworking network selection
*/
char *username;
/**
* password - Password for Interworking network selection
*/
char *password;
/**
* ext_password - Whether password is a name for external storage
*/
int ext_password;
/**
* ca_cert - CA certificate for Interworking network selection
*/
char *ca_cert;
/**
* client_cert - File path to client certificate file (PEM/DER)
*
* This field is used with Interworking networking selection for a case
* where client certificate/private key is used for authentication
* (EAP-TLS). 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.
*/
char *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"
*
* Note that when running wpa_supplicant as an application, the user
* certificate store (My user account) is used, whereas computer store
* (Computer account) is used when running wpasvc as a service.
*
* Alternatively, a named configuration blob can be used by setting
* this to blob://blob_name.
*/
char *private_key;
/**
* private_key_passwd - Password for private key file
*/
char *private_key_passwd;
/**
* imsi - IMSI in <MCC> | <MNC> | '-' | <MSIN> format
*/
char *imsi;
/**
* milenage - Milenage parameters for SIM/USIM simulator in
* <Ki>:<OPc>:<SQN> format
*/
char *milenage;
/**
* domain_suffix_match - Constraint for server domain name
*
* If set, this FQDN is used as a suffix match requirement for the AAA
* server certificate in SubjectAltName dNSName element(s). If a
* matching dNSName is found, this constraint is met. If no dNSName
* values are present, this constraint is matched against SubjectName CN
* using same suffix match comparison. Suffix match here means that the
* host/domain name is compared one label at a time starting from the
* top-level domain and all the labels in @domain_suffix_match shall be
* included in the certificate. The certificate may include additional
* sub-level labels in addition to the required labels.
*
* For example, domain_suffix_match=example.com would match
* test.example.com but would not match test-example.com.
*/
char *domain_suffix_match;
/**
* domain - Home service provider FQDN(s)
*
* This is used to compare against the Domain Name List to figure out
* whether the AP is operated by the Home SP. Multiple domain entries
* can be used to configure alternative FQDNs that will be considered
* home networks.
*/
char **domain;
/**
* num_domain - Number of FQDNs in the domain array
*/
size_t num_domain;
/**
* roaming_consortium - Roaming Consortium OI
*
* If roaming_consortium_len is non-zero, this field contains the
* Roaming Consortium OI that can be used to determine which access
* points support authentication with this credential. This is an
* alternative to the use of the realm parameter. When using Roaming
* Consortium to match the network, the EAP parameters need to be
* pre-configured with the credential since the NAI Realm information
* may not be available or fetched.
*/
u8 roaming_consortium[15];
/**
* roaming_consortium_len - Length of roaming_consortium
*/
size_t roaming_consortium_len;
/**
* required_roaming_consortium - Required Roaming Consortium OI
*
* If required_roaming_consortium_len is non-zero, this field contains
* the Roaming Consortium OI that is required to be advertised by the AP
* for the credential to be considered matching.
*/
u8 required_roaming_consortium[15];
/**
* required_roaming_consortium_len - Length of required_roaming_consortium
*/
size_t required_roaming_consortium_len;
/**
* roaming_consortiums - Roaming Consortium OI(s) memberships
*
* This field contains one or more OIs identifying the roaming
* consortiums of which the provider is a member. The list is sorted
* from the most preferred one to the least preferred one. A match
* between the Roaming Consortium OIs advertised by an AP and the OIs
* in this list indicates that successful authentication is possible.
* (Hotspot 2.0 PerProviderSubscription/<X+>/HomeSP/RoamingConsortiumOI)
*/
u8 roaming_consortiums[MAX_ROAMING_CONS][MAX_ROAMING_CONS_OI_LEN];
/**
* roaming_consortiums_len - Length on roaming_consortiums[i]
*/
size_t roaming_consortiums_len[MAX_ROAMING_CONS];
/**
* num_roaming_consortiums - Number of entries in roaming_consortiums
*/
unsigned int num_roaming_consortiums;
/**
* eap_method - EAP method to use
*
* Pre-configured EAP method to use with this credential or %NULL to
* indicate no EAP method is selected, i.e., the method will be
* selected automatically based on ANQP information.
*/
struct eap_method_type *eap_method;
/**
* phase1 - Phase 1 (outer authentication) parameters
*
* Pre-configured EAP parameters or %NULL.
*/
char *phase1;
/**
* phase2 - Phase 2 (inner authentication) parameters
*
* Pre-configured EAP parameters or %NULL.
*/
char *phase2;
struct excluded_ssid {
u8 ssid[SSID_MAX_LEN];
size_t ssid_len;
} *excluded_ssid;
size_t num_excluded_ssid;
struct roaming_partner {
char fqdn[128];
int exact_match;
u8 priority;
char country[3];
} *roaming_partner;
size_t num_roaming_partner;
int update_identifier;
/**
* provisioning_sp - FQDN of the SP that provisioned the credential
*/
char *provisioning_sp;
/**
* sp_priority - Credential priority within a provisioning SP
*
* This is the priority of the credential among all credentials
* provisionined by the same SP (i.e., for entries that have identical
* provisioning_sp value). The range of this priority is 0-255 with 0
* being the highest and 255 the lower priority.
*/
int sp_priority;
unsigned int min_dl_bandwidth_home;
unsigned int min_ul_bandwidth_home;
unsigned int min_dl_bandwidth_roaming;
unsigned int min_ul_bandwidth_roaming;
/**
* max_bss_load - Maximum BSS Load Channel Utilization (1..255)
* This value is used as the maximum channel utilization for network
* selection purposes for home networks. If the AP does not advertise
* BSS Load or if the limit would prevent any connection, this
* constraint will be ignored.
*/
unsigned int max_bss_load;
size_t num_req_conn_capab;
u8 *req_conn_capab_proto;
int **req_conn_capab_port;
/**
* ocsp - Whether to use/require OCSP to check server certificate
*
* 0 = do not use OCSP stapling (TLS certificate status extension)
* 1 = try to use OCSP stapling, but not require response
* 2 = require valid OCSP stapling response
*/
int ocsp;
/**
* sim_num - User selected SIM identifier
*
* This variable is used for identifying which SIM is used if the system
* has more than one.
*/
int sim_num;
};
#define CFG_CHANGED_DEVICE_NAME BIT(0)
#define CFG_CHANGED_CONFIG_METHODS BIT(1)
#define CFG_CHANGED_DEVICE_TYPE BIT(2)
#define CFG_CHANGED_OS_VERSION BIT(3)
#define CFG_CHANGED_UUID BIT(4)
#define CFG_CHANGED_COUNTRY BIT(5)
#define CFG_CHANGED_SEC_DEVICE_TYPE BIT(6)
#define CFG_CHANGED_P2P_SSID_POSTFIX BIT(7)
#define CFG_CHANGED_WPS_STRING BIT(8)
#define CFG_CHANGED_P2P_INTRA_BSS BIT(9)
#define CFG_CHANGED_VENDOR_EXTENSION BIT(10)
#define CFG_CHANGED_P2P_LISTEN_CHANNEL BIT(11)
#define CFG_CHANGED_P2P_OPER_CHANNEL BIT(12)
#define CFG_CHANGED_P2P_PREF_CHAN BIT(13)
#define CFG_CHANGED_EXT_PW_BACKEND BIT(14)
#define CFG_CHANGED_NFC_PASSWORD_TOKEN BIT(15)
#define CFG_CHANGED_P2P_PASSPHRASE_LEN BIT(16)
#define CFG_CHANGED_SCHED_SCAN_PLANS BIT(17)
#define CFG_CHANGED_WOWLAN_TRIGGERS BIT(18)
#define CFG_CHANGED_DISABLE_BTM BIT(19)
/**
* struct wpa_config - wpa_supplicant configuration data
*
* This data structure is presents the per-interface (radio) configuration
* data. In many cases, there is only one struct wpa_config instance, but if
* more than one network interface is being controlled, one instance is used
* for each.
*/
struct wpa_config {
/**
* ssid - Head of the global network list
*
* This is the head for the list of all the configured networks.
*/
struct wpa_ssid *ssid;
/**
* pssid - Per-priority network lists (in priority order)
*/
struct wpa_ssid **pssid;
/**
* num_prio - Number of different priorities used in the pssid lists
*
* This indicates how many per-priority network lists are included in
* pssid.
*/
size_t num_prio;
/**
* cred - Head of the credential list
*
* This is the head for the list of all the configured credentials.
*/
struct wpa_cred *cred;
/**
* eapol_version - IEEE 802.1X/EAPOL version number
*
* wpa_supplicant is implemented based on IEEE Std 802.1X-2004 which
* defines EAPOL version 2. However, there are many APs that do not
* handle the new version number correctly (they seem to drop the
* frames completely). In order to make wpa_supplicant interoperate
* with these APs, the version number is set to 1 by default. This
* configuration value can be used to set it to the new version (2).
*/
int eapol_version;
/**
* ap_scan - AP scanning/selection
*
* By default, wpa_supplicant requests driver to perform AP
* scanning and then uses the scan results to select a
* suitable AP. Another alternative is to allow the driver to
* take care of AP scanning and selection and use
* wpa_supplicant just to process EAPOL frames based on IEEE
* 802.11 association information from the driver.
*
* 1: wpa_supplicant initiates scanning and AP selection (default).
*
* 0: Driver takes care of scanning, AP selection, and IEEE 802.11
* association parameters (e.g., WPA IE generation); this mode can
* also be used with non-WPA drivers when using IEEE 802.1X mode;
* do not try to associate with APs (i.e., external program needs
* to control association). This mode must also be used when using
* wired Ethernet drivers.
*
* 2: like 0, but associate with APs using security policy and SSID
* (but not BSSID); this can be used, e.g., with ndiswrapper and NDIS
* drivers to enable operation with hidden SSIDs and optimized roaming;
* in this mode, the network blocks in the configuration are tried
* one by one until the driver reports successful association; each
* network block should have explicit security policy (i.e., only one
* option in the lists) for key_mgmt, pairwise, group, proto variables.
*
* Note: ap_scan=2 should not be used with the nl80211 driver interface
* (the current Linux interface). ap_scan=1 is optimized work working
* with nl80211. For finding networks using hidden SSID, scan_ssid=1 in
* the network block can be used with nl80211.
*/
int ap_scan;
/**
* bgscan - Background scan and roaming parameters or %NULL if none
*
* This is an optional set of parameters for background scanning and
* roaming within a network (ESS). For more detailed information see
* ssid block documentation.
*
* The variable defines default bgscan behavior for all BSS station
* networks except for those which have their own bgscan configuration.
*/
char *bgscan;
/**
* disable_scan_offload - Disable automatic offloading of scan requests
*
* By default, %wpa_supplicant tries to offload scanning if the driver
* indicates support for this (sched_scan). This configuration
* parameter can be used to disable this offloading mechanism.
*/
int disable_scan_offload;
/**
* ctrl_interface - Parameters for the control interface
*
* If this is specified, %wpa_supplicant will open a control interface
* that is available for external programs to manage %wpa_supplicant.
* The meaning of this string depends on which control interface
* mechanism is used. For all cases, the existence of this parameter
* in configuration is used to determine whether the control interface
* is enabled.
*
* For UNIX domain sockets (default on Linux and BSD): This is a
* directory that will be created for UNIX domain sockets for listening
* to requests from external programs (CLI/GUI, etc.) for status
* information and configuration. The socket file will be named based
* on the interface name, so multiple %wpa_supplicant processes can be
* run at the same time if more than one interface is used.
* /var/run/wpa_supplicant is the recommended directory for sockets and
* by default, wpa_cli will use it when trying to connect with
* %wpa_supplicant.
*
* Access control for the control interface can be configured
* by setting the directory to allow only members of a group
* to use sockets. This way, it is possible to run
* %wpa_supplicant as root (since it needs to change network
* configuration and open raw sockets) and still allow GUI/CLI
* components to be run as non-root users. However, since the
* control interface can be used to change the network
* configuration, this access needs to be protected in many
* cases. By default, %wpa_supplicant is configured to use gid
* 0 (root). If you want to allow non-root users to use the
* control interface, add a new group and change this value to
* match with that group. Add users that should have control
* interface access to this group.
*
* When configuring both the directory and group, use following format:
* DIR=/var/run/wpa_supplicant GROUP=wheel
* DIR=/var/run/wpa_supplicant GROUP=0
* (group can be either group name or gid)
*
* For UDP connections (default on Windows): The value will be ignored.
* This variable is just used to select that the control interface is
* to be created. The value can be set to, e.g., udp
* (ctrl_interface=udp).
*
* For Windows Named Pipe: This value can be used to set the security
* descriptor for controlling access to the control interface. Security
* descriptor can be set using Security Descriptor String Format (see
* http://msdn.microsoft.com/library/default.asp?url=/library/en-us/secauthz/security/security_descriptor_string_format.asp).
* The descriptor string needs to be prefixed with SDDL=. For example,
* ctrl_interface=SDDL=D: would set an empty DACL (which will reject
* all connections).
*/
char *ctrl_interface;
/**
* ctrl_interface_group - Control interface group (DEPRECATED)
*
* This variable is only used for backwards compatibility. Group for
* UNIX domain sockets should now be specified using GROUP=group in
* ctrl_interface variable.
*/
char *ctrl_interface_group;
/**
* fast_reauth - EAP fast re-authentication (session resumption)
*
* By default, fast re-authentication is enabled for all EAP methods
* that support it. This variable can be used to disable fast
* re-authentication (by setting fast_reauth=0). Normally, there is no
* need to disable fast re-authentication.
*/
int fast_reauth;
/**
* opensc_engine_path - Path to the OpenSSL engine for opensc
*
* This is an OpenSSL specific configuration option for loading OpenSC
* engine (engine_opensc.so); if %NULL, this engine is not loaded.
*/
char *opensc_engine_path;
/**
* pkcs11_engine_path - Path to the OpenSSL engine for PKCS#11
*
* This is an OpenSSL specific configuration option for loading PKCS#11
* engine (engine_pkcs11.so); if %NULL, this engine is not loaded.
*/
char *pkcs11_engine_path;
/**
* pkcs11_module_path - Path to the OpenSSL OpenSC/PKCS#11 module
*
* This is an OpenSSL specific configuration option for configuring
* path to OpenSC/PKCS#11 engine (opensc-pkcs11.so); if %NULL, this
* module is not loaded.
*/
char *pkcs11_module_path;
/**
* openssl_ciphers - OpenSSL cipher string
*
* This is an OpenSSL specific configuration option for configuring the
* default ciphers. If not set, "DEFAULT:!EXP:!LOW" is used as the
* default.
*/
char *openssl_ciphers;
/**
* pcsc_reader - PC/SC reader name prefix
*
* If not %NULL, PC/SC reader with a name that matches this prefix is
* initialized for SIM/USIM access. Empty string can be used to match
* the first available reader.
*/
char *pcsc_reader;
/**
* pcsc_pin - PIN for USIM, GSM SIM, and smartcards
*
* This field is used to configure PIN for SIM/USIM for EAP-SIM and
* EAP-AKA. If left out, this will be asked through control interface.
*/
char *pcsc_pin;
/**
* external_sim - Use external processing for SIM/USIM operations
*/
int external_sim;
/**
* driver_param - Driver interface parameters
*
* This text string is passed to the selected driver interface with the
* optional struct wpa_driver_ops::set_param() handler. This can be
* used to configure driver specific options without having to add new
* driver interface functionality.
*/
char *driver_param;
/**
* dot11RSNAConfigPMKLifetime - Maximum lifetime of a PMK
*
* dot11 MIB variable for the maximum lifetime of a PMK in the PMK
* cache (unit: seconds).
*/
unsigned int dot11RSNAConfigPMKLifetime;
/**
* dot11RSNAConfigPMKReauthThreshold - PMK re-authentication threshold
*
* dot11 MIB variable for the percentage of the PMK lifetime
* that should expire before an IEEE 802.1X reauthentication occurs.
*/
unsigned int dot11RSNAConfigPMKReauthThreshold;
/**
* dot11RSNAConfigSATimeout - Security association timeout
*
* dot11 MIB variable for the maximum time a security association
* shall take to set up (unit: seconds).
*/
unsigned int dot11RSNAConfigSATimeout;
/**
* update_config - Is wpa_supplicant allowed to update configuration
*
* This variable control whether wpa_supplicant is allow to re-write
* its configuration with wpa_config_write(). If this is zero,
* configuration data is only changed in memory and the external data
* is not overriden. If this is non-zero, wpa_supplicant will update
* the configuration data (e.g., a file) whenever configuration is
* changed. This update may replace the old configuration which can
* remove comments from it in case of a text file configuration.
*/
int update_config;
/**
* blobs - Configuration blobs
*/
struct wpa_config_blob *blobs;
/**
* uuid - Universally Unique IDentifier (UUID; see RFC 4122) for WPS
*/
u8 uuid[16];
/**
* auto_uuid - Automatic UUID behavior
* 0 = generate static value based on the local MAC address (default)
* 1 = generate a random UUID every time wpa_supplicant starts
*/
int auto_uuid;
/**
* device_name - Device Name (WPS)
* User-friendly description of device; up to 32 octets encoded in
* UTF-8
*/
char *device_name;
/**
* manufacturer - Manufacturer (WPS)
* The manufacturer of the device (up to 64 ASCII characters)
*/
char *manufacturer;
/**
* model_name - Model Name (WPS)
* Model of the device (up to 32 ASCII characters)
*/
char *model_name;
/**
* model_number - Model Number (WPS)
* Additional device description (up to 32 ASCII characters)
*/
char *model_number;
/**
* serial_number - Serial Number (WPS)
* Serial number of the device (up to 32 characters)
*/
char *serial_number;
/**
* device_type - Primary Device Type (WPS)
*/
u8 device_type[WPS_DEV_TYPE_LEN];
/**
* config_methods - Config Methods
*
* This is a space-separated list of supported WPS configuration
* methods. For example, "label virtual_display virtual_push_button
* keypad".
* Available methods: usba ethernet label display ext_nfc_token
* int_nfc_token nfc_interface push_button keypad
* virtual_display physical_display
* virtual_push_button physical_push_button.
*/
char *config_methods;
/**
* os_version - OS Version (WPS)
* 4-octet operating system version number
*/
u8 os_version[4];
/**
* country - Country code
*
* This is the ISO/IEC alpha2 country code for which we are operating
* in
*/
char country[2];
/**
* wps_cred_processing - Credential processing
*
* 0 = process received credentials internally
* 1 = do not process received credentials; just pass them over
* ctrl_iface to external program(s)
* 2 = process received credentials internally and pass them over
* ctrl_iface to external program(s)
*/
int wps_cred_processing;
/**
* wps_cred_add_sae - Whether to enable SAE automatically for WPS
*
* 0 = only add the explicitly listed WPA2-PSK configuration
* 1 = add both the WPA2-PSK and SAE configuration and enable PMF so
* that the station gets configured in WPA3-Personal transition mode
* (supports both WPA2-Personal (PSK) and WPA3-Personal (SAE) APs).
*/
int wps_cred_add_sae;
#define MAX_SEC_DEVICE_TYPES 5
/**
* sec_device_types - Secondary Device Types (P2P)
*/
u8 sec_device_type[MAX_SEC_DEVICE_TYPES][WPS_DEV_TYPE_LEN];
int num_sec_device_types;
int p2p_listen_reg_class;
int p2p_listen_channel;
int p2p_oper_reg_class;
int p2p_oper_channel;
int p2p_go_intent;
char *p2p_ssid_postfix;
int persistent_reconnect;
int p2p_intra_bss;
unsigned int num_p2p_pref_chan;
struct p2p_channel *p2p_pref_chan;
struct wpa_freq_range_list p2p_no_go_freq;
int p2p_add_cli_chan;
int p2p_ignore_shared_freq;
int p2p_optimize_listen_chan;
struct wpabuf *wps_vendor_ext_m1;
#define MAX_WPS_VENDOR_EXT 10
/**
* wps_vendor_ext - Vendor extension attributes in WPS
*/
struct wpabuf *wps_vendor_ext[MAX_WPS_VENDOR_EXT];
/**
* p2p_group_idle - Maximum idle time in seconds for P2P group
*
* This value controls how long a P2P group is maintained after there
* is no other members in the group. As a GO, this means no associated
* stations in the group. As a P2P client, this means no GO seen in
* scan results. The maximum idle time is specified in seconds with 0
* indicating no time limit, i.e., the P2P group remains in active
* state indefinitely until explicitly removed. As a P2P client, the
* maximum idle time of P2P_MAX_CLIENT_IDLE seconds is enforced, i.e.,
* this parameter is mainly meant for GO use and for P2P client, it can
* only be used to reduce the default timeout to smaller value. A
* special value -1 can be used to configure immediate removal of the
* group for P2P client role on any disconnection after the data
* connection has been established.
*/
int p2p_group_idle;
/**
* p2p_go_freq_change_policy - The GO frequency change policy
*
* This controls the behavior of the GO when there is a change in the
* map of the currently used frequencies in case more than one channel
* is supported.
*
* @P2P_GO_FREQ_MOVE_SCM: Prefer working in a single channel mode if
* possible. In case the GO is the only interface using its frequency
* and there are other station interfaces on other frequencies, the GO
* will migrate to one of these frequencies.
*
* @P2P_GO_FREQ_MOVE_SCM_PEER_SUPPORTS: Same as P2P_GO_FREQ_MOVE_SCM,
* but a transition is possible only in case one of the other used
* frequencies is one of the frequencies in the intersection of the
* frequency list of the local device and the peer device.
*
* @P2P_GO_FREQ_MOVE_STAY: Prefer to stay on the current frequency.
*
* @P2P_GO_FREQ_MOVE_SCM_ECSA: Same as
* P2P_GO_FREQ_MOVE_SCM_PEER_SUPPORTS but a transition is possible only
* if all the group members advertise eCSA support.
*/
enum {
P2P_GO_FREQ_MOVE_SCM = 0,
P2P_GO_FREQ_MOVE_SCM_PEER_SUPPORTS = 1,
P2P_GO_FREQ_MOVE_STAY = 2,
P2P_GO_FREQ_MOVE_SCM_ECSA = 3,
P2P_GO_FREQ_MOVE_MAX = P2P_GO_FREQ_MOVE_SCM_ECSA,
} p2p_go_freq_change_policy;
#define DEFAULT_P2P_GO_FREQ_MOVE P2P_GO_FREQ_MOVE_STAY
/**
* p2p_passphrase_len - Passphrase length (8..63) for P2P GO
*
* This parameter controls the length of the random passphrase that is
* generated at the GO.
*/
unsigned int p2p_passphrase_len;
/**
* bss_max_count - Maximum number of BSS entries to keep in memory
*/
unsigned int bss_max_count;
/**
* bss_expiration_age - BSS entry age after which it can be expired
*
* This value controls the time in seconds after which a BSS entry
* gets removed if it has not been updated or is not in use.
*/
unsigned int bss_expiration_age;
/**
* bss_expiration_scan_count - Expire BSS after number of scans
*
* If the BSS entry has not been seen in this many scans, it will be
* removed. A value of 1 means that entry is removed after the first
* scan in which the BSSID is not seen. Larger values can be used
* to avoid BSS entries disappearing if they are not visible in
* every scan (e.g., low signal quality or interference).
*/
unsigned int bss_expiration_scan_count;
/**
* filter_ssids - SSID-based scan result filtering
*
* 0 = do not filter scan results
* 1 = only include configured SSIDs in scan results/BSS table
*/
int filter_ssids;
/**
* filter_rssi - RSSI-based scan result filtering
*
* 0 = do not filter scan results
* -n = filter scan results below -n dBm
*/
int filter_rssi;
/**
* max_num_sta - Maximum number of STAs in an AP/P2P GO
*/
unsigned int max_num_sta;
/**
* ap_isolate - Whether to use client isolation feature
*
* Client isolation can be used to prevent low-level bridging of
* frames between associated stations in the BSS. By default,
* this bridging is allowed (ap_isolate=0); except in P2P GO case,
* where p2p_intra_bss parameter is used to determine whether to allow
* intra-BSS forwarding (ap_isolate = !p2p_intra_bss).
*
* 0 = do not enable AP isolation
* 1 = enable AP isolation
*/
int ap_isolate;
/**
* freq_list - Array of allowed scan frequencies or %NULL for all
*
* This is an optional zero-terminated array of frequencies in
* megahertz (MHz) to allow for narrowing scanning range.
*/
int *freq_list;
/**
* scan_cur_freq - Whether to scan only the current channel
*
* If true, attempt to scan only the current channel if any other
* VIFs on this radio are already associated on a particular channel.
*/
int scan_cur_freq;
/**
* changed_parameters - Bitmap of changed parameters since last update
*/
unsigned int changed_parameters;
/**
* disassoc_low_ack - Disassociate stations with massive packet loss
*/
int disassoc_low_ack;
/**
* interworking - Whether Interworking (IEEE 802.11u) is enabled
*/
int interworking;
/**
* access_network_type - Access Network Type
*
* When Interworking is enabled, scans will be limited to APs that
* advertise the specified Access Network Type (0..15; with 15
* indicating wildcard match).
*/
int access_network_type;
/**
* go_interworking - Whether Interworking for P2P GO is enabled
*/
int go_interworking;
/**
* go_access_network_type - P2P GO Access Network Type
*
* This indicates which access network type to advertise if Interworking
* is enabled for P2P GO.
*/
int go_access_network_type;
/**
* go_internet - Interworking: Internet connectivity (0 or 1)
*/
int go_internet;
/**
* go_venue_group - Interworking: Venue group
*/
int go_venue_group;
/**
* go_venue_type: Interworking: Venue type
*/
int go_venue_type;
/**
* hessid - Homogenous ESS identifier
*
* If this is set (any octet is non-zero), scans will be used to
* request response only from BSSes belonging to the specified
* Homogeneous ESS. This is used only if interworking is enabled.
*/
u8 hessid[ETH_ALEN];
/**
* hs20 - Hotspot 2.0
*/
int hs20;
/**
* pbc_in_m1 - AP mode WPS probing workaround for PBC with Windows 7
*
* Windows 7 uses incorrect way of figuring out AP's WPS capabilities
* by acting as a Registrar and using M1 from the AP. The config
* methods attribute in that message is supposed to indicate only the
* configuration method supported by the AP in Enrollee role, i.e., to
* add an external Registrar. For that case, PBC shall not be used and
* as such, the PushButton config method is removed from M1 by default.
* If pbc_in_m1=1 is included in the configuration file, the PushButton
* config method is left in M1 (if included in config_methods
* parameter) to allow Windows 7 to use PBC instead of PIN (e.g., from
* a label in the AP).
*/
int pbc_in_m1;
/**
* autoscan - Automatic scan parameters or %NULL if none
*
* This is an optional set of parameters for automatic scanning
* within an interface in following format:
* <autoscan module name>:<module parameters>
*/
char *autoscan;
/**
* wps_nfc_pw_from_config - NFC Device Password was read from config
*
* This parameter can be determined whether the NFC Device Password was
* included in the configuration (1) or generated dynamically (0). Only
* the former case is re-written back to the configuration file.
*/
int wps_nfc_pw_from_config;
/**
* wps_nfc_dev_pw_id - NFC Device Password ID for password token
*/
int wps_nfc_dev_pw_id;
/**
* wps_nfc_dh_pubkey - NFC DH Public Key for password token
*/
struct wpabuf *wps_nfc_dh_pubkey;
/**
* wps_nfc_dh_privkey - NFC DH Private Key for password token
*/
struct wpabuf *wps_nfc_dh_privkey;
/**
* wps_nfc_dev_pw - NFC Device Password for password token
*/
struct wpabuf *wps_nfc_dev_pw;
/**
* ext_password_backend - External password backend or %NULL if none
*
* format: <backend name>[:<optional backend parameters>]
*/
char *ext_password_backend;
/*
* p2p_go_max_inactivity - Timeout in seconds to detect STA inactivity
*
* This timeout value is used in P2P GO mode to clean up
* inactive stations.
* By default: 300 seconds.
*/
int p2p_go_max_inactivity;
struct hostapd_wmm_ac_params wmm_ac_params[4];
/**
* auto_interworking - Whether to use network selection automatically
*
* 0 = do not automatically go through Interworking network selection
* (i.e., require explicit interworking_select command for this)
* 1 = perform Interworking network selection if one or more
* credentials have been configured and scan did not find a
* matching network block
*/
int auto_interworking;
/**
* p2p_go_ht40 - Default mode for HT40 enable when operating as GO.
*
* This will take effect for p2p_group_add, p2p_connect, and p2p_invite.
* Note that regulatory constraints and driver capabilities are
* consulted anyway, so setting it to 1 can't do real harm.
* By default: 0 (disabled)
*/
int p2p_go_ht40;
/**
* p2p_go_vht - Default mode for VHT enable when operating as GO
*
* This will take effect for p2p_group_add, p2p_connect, and p2p_invite.
* Note that regulatory constraints and driver capabilities are
* consulted anyway, so setting it to 1 can't do real harm.
* By default: 0 (disabled)
*/
int p2p_go_vht;
/**
* p2p_go_edmg - Default mode for EDMG enable when operating as GO
*
* This will take effect for p2p_group_add, p2p_connect, and p2p_invite.
* Note that regulatory constraints and driver capabilities are
* consulted anyway, so setting it to 1 can't do real harm.
* By default: 0 (disabled)
*/
int p2p_go_edmg;
/**
* p2p_go_he - Default mode for 11ax HE enable when operating as GO
*
* This will take effect for p2p_group_add, p2p_connect, and p2p_invite.
* Note that regulatory constraints and driver capabilities are
* consulted anyway, so setting it to 1 can't do real harm.
* By default: 0 (disabled)
*/
int p2p_go_he;
/**
* p2p_go_ctwindow - CTWindow to use when operating as GO
*
* By default: 0 (no CTWindow). Values 0-127 can be used to indicate
* the length of the CTWindow in TUs.
*/
int p2p_go_ctwindow;
/**
* p2p_disabled - Whether P2P operations are disabled for this interface
*/
int p2p_disabled;
/**
* p2p_no_group_iface - Whether group interfaces can be used
*
* By default, wpa_supplicant will create a separate interface for P2P
* group operations if the driver supports this. This functionality can
* be disabled by setting this parameter to 1. In that case, the same
* interface that was used for the P2P management operations is used
* also for the group operation.
*/
int p2p_no_group_iface;
/**
* p2p_cli_probe - Enable/disable P2P CLI probe request handling
*
* If this parameter is set to 1, a connected P2P Client will receive
* and handle Probe Request frames. Setting this parameter to 0
* disables this option. Default value: 0.
*
* Note: Setting this property at run time takes effect on the following
* interface state transition to/from the WPA_COMPLETED state.
*/
int p2p_cli_probe;
/**
* okc - Whether to enable opportunistic key caching by default
*
* By default, OKC is disabled unless enabled by the per-network
* proactive_key_caching=1 parameter. okc=1 can be used to change this
* default behavior.
*/
int okc;
/**
* pmf - Whether to enable/require PMF by default
*
* By default, PMF is disabled unless enabled by the per-network
* ieee80211w=1 or ieee80211w=2 parameter. pmf=1/2 can be used to change
* this default behavior for RSN network (this is not applicable for
* non-RSN cases).
*/
enum mfp_options pmf;
/**
* sae_groups - Preference list of enabled groups for SAE
*
* By default (if this parameter is not set), the mandatory group 19
* (ECC group defined over a 256-bit prime order field) is preferred,
* but other groups are also enabled. If this parameter is set, the
* groups will be tried in the indicated order.
*/
int *sae_groups;
/**
* sae_pwe - SAE mechanism for PWE derivation
* 0 = hunting-and-pecking loop only
* 1 = hash-to-element only
* 2 = both hunting-and-pecking loop and hash-to-element enabled
*/
int sae_pwe;
/**
* sae_pmkid_in_assoc - Whether to include PMKID in SAE Assoc Req
*/
int sae_pmkid_in_assoc;
/**
* dtim_period - Default DTIM period in Beacon intervals
*
* This parameter can be used to set the default value for network
* blocks that do not specify dtim_period.
*/
int dtim_period;
/**
* beacon_int - Default Beacon interval in TU
*
* This parameter can be used to set the default value for network
* blocks that do not specify beacon_int.
*/
int beacon_int;
/**
* ap_vendor_elements: Vendor specific elements for Beacon/ProbeResp
*
* This parameter can be used to define additional vendor specific
* elements for Beacon and Probe Response frames in AP/P2P GO mode. The
* format for these element(s) is a hexdump of the raw information
* elements (id+len+payload for one or more elements).
*/
struct wpabuf *ap_vendor_elements;
/**
* ignore_old_scan_res - Ignore scan results older than request
*
* The driver may have a cache of scan results that makes it return
* information that is older than our scan trigger. This parameter can
* be used to configure such old information to be ignored instead of
* allowing it to update the internal BSS table.
*/
int ignore_old_scan_res;
/**
* sched_scan_interval - schedule scan interval
*/
unsigned int sched_scan_interval;
/**
* sched_scan_start_delay - Schedule scan start delay before first scan
*
* Delay (in seconds) before scheduling first scan plan cycle. The
* driver may ignore this parameter and start immediately (or at any
* other time), if this feature is not supported.
*/
unsigned int sched_scan_start_delay;
/**
* tdls_external_control - External control for TDLS setup requests
*
* Enable TDLS mode where external programs are given the control
* to specify the TDLS link to get established to the driver. The
* driver requests the TDLS setup to the supplicant only for the
* specified TDLS peers.
*/
int tdls_external_control;
u8 ip_addr_go[4];
u8 ip_addr_mask[4];
u8 ip_addr_start[4];
u8 ip_addr_end[4];
/**
* osu_dir - OSU provider information directory
*
* If set, allow FETCH_OSU control interface command to be used to fetch
* OSU provider information into all APs and store the results in this
* directory.
*/
char *osu_dir;
/**
* wowlan_triggers - Wake-on-WLAN triggers
*
* If set, these wowlan triggers will be configured.
*/
char *wowlan_triggers;
/**
* p2p_search_delay - Extra delay between concurrent search iterations
*
* Add extra delay (in milliseconds) between search iterations when
* there is a concurrent operation to make p2p_find friendlier to
* concurrent operations by avoiding it from taking 100% of radio
* resources.
*/
unsigned int p2p_search_delay;
/**
* mac_addr - MAC address policy default
*
* 0 = use permanent MAC address
* 1 = use random MAC address for each ESS connection
* 2 = like 1, but maintain OUI (with local admin bit set)
*
* By default, permanent MAC address is used unless policy is changed by
* the per-network mac_addr parameter. Global mac_addr=1 can be used to
* change this default behavior.
*/
int mac_addr;
/**
* rand_addr_lifetime - Lifetime of random MAC address in seconds
*/
unsigned int rand_addr_lifetime;
/**
* preassoc_mac_addr - Pre-association MAC address policy
*
* 0 = use permanent MAC address
* 1 = use random MAC address
* 2 = like 1, but maintain OUI (with local admin bit set)
*/
int preassoc_mac_addr;
/**
* key_mgmt_offload - Use key management offload
*
* Key management offload should be used if the device supports it.
* Key management offload is the capability of a device operating as
* a station to do the exchange necessary to establish temporal keys
* during initial RSN connection, after roaming, or during a PTK
* rekeying operation.
*/
int key_mgmt_offload;
/**
* user_mpm - MPM residency
*
* 0: MPM lives in driver.
* 1: wpa_supplicant handles peering and station allocation.
*
* If AMPE or SAE is enabled, the MPM is always in userspace.
*/
int user_mpm;
/**
* max_peer_links - Maximum number of peer links
*
* Maximum number of mesh peering currently maintained by the STA.
*/
int max_peer_links;
/**
* cert_in_cb - Whether to include a peer certificate dump in events
*
* This controls whether peer certificates for authentication server and
* its certificate chain are included in EAP peer certificate events.
*/
int cert_in_cb;
/**
* mesh_max_inactivity - Timeout in seconds to detect STA inactivity
*
* This timeout value is used in mesh STA to clean up inactive stations.
* By default: 300 seconds.
*/
int mesh_max_inactivity;
/**
* dot11RSNASAERetransPeriod - Timeout to retransmit SAE Auth frame
*
* This timeout value is used in mesh STA to retransmit
* SAE Authentication frame.
* By default: 1000 milliseconds.
*/
int dot11RSNASAERetransPeriod;
/**
* passive_scan - Whether to force passive scan for network connection
*
* This parameter can be used to force only passive scanning to be used
* for network connection cases. It should be noted that this will slow
* down scan operations and reduce likelihood of finding the AP. In
* addition, some use cases will override this due to functional
* requirements, e.g., for finding an AP that uses hidden SSID
* (scan_ssid=1) or P2P device discovery.
*/
int passive_scan;
/**
* reassoc_same_bss_optim - Whether to optimize reassoc-to-same-BSS
*/
int reassoc_same_bss_optim;
/**
* wps_priority - Priority for the networks added through WPS
*
* This priority value will be set to each network profile that is added
* by executing the WPS protocol.
*/
int wps_priority;
/**
* fst_group_id - FST group ID
*/
char *fst_group_id;
/**
* fst_priority - priority of the interface within the FST group
*/
int fst_priority;
/**
* fst_llt - default FST LLT (Link-Lost Timeout) to be used for the
* interface.
*/
int fst_llt;
/**
* wpa_rsc_relaxation - RSC relaxation on GTK installation
*
* Values:
* 0 - use the EAPOL-Key RSC value on GTK installation
* 1 - use the null RSC if a bogus RSC value is detected in message 3
* of 4-Way Handshake or message 1 of Group Key Handshake.
*/
int wpa_rsc_relaxation;
/**
* sched_scan_plans - Scan plans for scheduled scan
*
* Each scan plan specifies the interval between scans and the number of
* iterations. The last scan plan only specifies the scan interval and
* will be run infinitely.
*
* format: <interval:iterations> <interval2:iterations2> ... <interval>
*/
char *sched_scan_plans;
#ifdef CONFIG_MBO
/**
* non_pref_chan - Non-preferred channels list, separated by spaces.
*
* format: op_class:chan:preference:reason<:detail>
* Detail is optional.
*/
char *non_pref_chan;
/**
* mbo_cell_capa - Cellular capabilities for MBO
*/
enum mbo_cellular_capa mbo_cell_capa;
/**
* disassoc_imminent_rssi_threshold - RSSI threshold of candidate AP
* when disassociation imminent is set.
*/
int disassoc_imminent_rssi_threshold;
/**
* oce - Enable OCE in STA and/or STA-CFON mode
* - Set BIT(0) to enable OCE in non-AP STA mode
* - Set BIT(1) to enable OCE in STA-CFON mode
*/
unsigned int oce;
#endif /* CONFIG_MBO */
/**
* gas_address3 - GAS Address3 field behavior
*
* Values:
* 0 - P2P specification (Address3 = AP BSSID)
* 1 = IEEE 802.11 standard compliant (Address3 = Wildcard BSSID when
* sent to not-associated AP; if associated, AP BSSID)
*/
int gas_address3;
/**
* ftm_responder - Publish FTM (fine timing measurement)
* responder functionality
*
* Values:
* 0 - do not publish FTM responder functionality (Default)
* 1 - publish FTM responder functionality in
* bit 70 of Extended Capabilities element
* Note, actual FTM responder operation is managed outside
* wpa_supplicant.
*/
int ftm_responder;
/**
* ftm_initiator - Publish FTM (fine timing measurement)
* initiator functionality
*
* Values:
* 0 - do not publish FTM initiator functionality (Default)
* 1 - publish FTM initiator functionality in
* bit 71 of Extended Capabilities element
* Note, actual FTM initiator operation is managed outside
* wpa_supplicant.
*/
int ftm_initiator;
/**
* gas_rand_addr_lifetime - Lifetime of random MAC address for ANQP in
* seconds
*/
unsigned int gas_rand_addr_lifetime;
/**
* gas_rand_mac_addr - GAS MAC address policy
*
* 0 = use permanent MAC address
* 1 = use random MAC address
* 2 = like 1, but maintain OUI (with local admin bit set)
*/
int gas_rand_mac_addr;
/**
* dpp_config_processing - How to process DPP configuration
*
* 0 = report received configuration to an external program for
* processing; do not generate any network profile internally
* 1 = report received configuration to an external program and generate
* a network profile internally, but do not automatically connect
* to the created (disabled) profile; the network profile id is
* reported to external programs
* 2 = report received configuration to an external program, generate
* a network profile internally, try to connect to the created
* profile automatically
*/
int dpp_config_processing;
/**
* dpp_name - Name for Enrollee's DPP Configuration Request
*/
char *dpp_name;
/**
* dpp_mud_url - MUD URL for Enrollee's DPP Configuration Request
*/
char *dpp_mud_url;
/**
* coloc_intf_reporting - Colocated interference reporting
*
* dot11CoLocIntfReportingActivated
* 0 = disabled (false)
* 1 = enabled (true)
*/
int coloc_intf_reporting;
/**
* p2p_device_random_mac_addr - P2P Device MAC address policy default
*
* 0 = use permanent MAC address
* 1 = use random MAC address on creating the interface if there is no
* persistent groups.
*
* By default, permanent MAC address is used.
*/
int p2p_device_random_mac_addr;
/**
* p2p_device_persistent_mac_addr - Record last used MAC address
*
* If there are saved persistent groups, P2P cannot generate another
* random MAC address, and need to restore to last used MAC address.
*/
u8 p2p_device_persistent_mac_addr[ETH_ALEN];
/**
* p2p_interface_random_mac_addr - P2P Interface MAC address policy default
*
* 0 = use permanent MAC address
* 1 = use random MAC address on creating the interface.
*
* By default, permanent MAC address is used.
*/
int p2p_interface_random_mac_addr;
/**
* disable_btm - Disable BSS transition management in STA
* - Set to 0 to enable BSS transition management
* - Set to 1 to disable BSS transition management
*
* By default BSS transition management is enabled
*/
int disable_btm;
};
/* Prototypes for common functions from config.c */
void wpa_config_free(struct wpa_config *ssid);
void wpa_config_free_ssid(struct wpa_ssid *ssid);
void wpa_config_foreach_network(struct wpa_config *config,
void (*func)(void *, struct wpa_ssid *),
void *arg);
struct wpa_ssid * wpa_config_get_network(struct wpa_config *config, int id);
struct wpa_ssid * wpa_config_add_network(struct wpa_config *config);
int wpa_config_remove_network(struct wpa_config *config, int id);
void wpa_config_set_network_defaults(struct wpa_ssid *ssid);
int wpa_config_set(struct wpa_ssid *ssid, const char *var, const char *value,
int line);
int wpa_config_set_quoted(struct wpa_ssid *ssid, const char *var,
const char *value);
int wpa_config_dump_values(struct wpa_config *config, char *buf,
size_t buflen);
int wpa_config_get_value(const char *name, struct wpa_config *config,
char *buf, size_t buflen);
char ** wpa_config_get_all(struct wpa_ssid *ssid, int get_keys);
char * wpa_config_get(struct wpa_ssid *ssid, const char *var);
char * wpa_config_get_no_key(struct wpa_ssid *ssid, const char *var);
void wpa_config_update_psk(struct wpa_ssid *ssid);
int wpa_config_add_prio_network(struct wpa_config *config,
struct wpa_ssid *ssid);
int wpa_config_update_prio_list(struct wpa_config *config);
const struct wpa_config_blob * wpa_config_get_blob(struct wpa_config *config,
const char *name);
void wpa_config_set_blob(struct wpa_config *config,
struct wpa_config_blob *blob);
void wpa_config_free_blob(struct wpa_config_blob *blob);
int wpa_config_remove_blob(struct wpa_config *config, const char *name);
void wpa_config_flush_blobs(struct wpa_config *config);
struct wpa_cred * wpa_config_get_cred(struct wpa_config *config, int id);
struct wpa_cred * wpa_config_add_cred(struct wpa_config *config);
int wpa_config_remove_cred(struct wpa_config *config, int id);
void wpa_config_free_cred(struct wpa_cred *cred);
int wpa_config_set_cred(struct wpa_cred *cred, const char *var,
const char *value, int line);
char * wpa_config_get_cred_no_key(struct wpa_cred *cred, const char *var);
struct wpa_config * wpa_config_alloc_empty(const char *ctrl_interface,
const char *driver_param);
#ifndef CONFIG_NO_STDOUT_DEBUG
void wpa_config_debug_dump_networks(struct wpa_config *config);
#else /* CONFIG_NO_STDOUT_DEBUG */
#define wpa_config_debug_dump_networks(c) do { } while (0)
#endif /* CONFIG_NO_STDOUT_DEBUG */
/* Prototypes for common functions from config.c */
int wpa_config_process_global(struct wpa_config *config, char *pos, int line);
int wpa_config_get_num_global_field_names(void);
const char * wpa_config_get_global_field_name(unsigned int i, int *no_var);
/* Prototypes for backend specific functions from the selected config_*.c */
/**
* wpa_config_read - Read and parse configuration database
* @name: Name of the configuration (e.g., path and file name for the
* configuration file)
* @cfgp: Pointer to previously allocated configuration data or %NULL if none
* Returns: Pointer to allocated configuration data or %NULL on failure
*
* This function reads configuration data, parses its contents, and allocates
* data structures needed for storing configuration information. The allocated
* data can be freed with wpa_config_free().
*
* Each configuration backend needs to implement this function.
*/
struct wpa_config * wpa_config_read(const char *name, struct wpa_config *cfgp);
/**
* wpa_config_write - Write or update configuration data
* @name: Name of the configuration (e.g., path and file name for the
* configuration file)
* @config: Configuration data from wpa_config_read()
* Returns: 0 on success, -1 on failure
*
* This function write all configuration data into an external database (e.g.,
* a text file) in a format that can be read with wpa_config_read(). This can
* be used to allow wpa_supplicant to update its configuration, e.g., when a
* new network is added or a password is changed.
*
* Each configuration backend needs to implement this function.
*/
int wpa_config_write(const char *name, struct wpa_config *config);
#endif /* CONFIG_H */