text: /*
   * hostapd / Configuration definitions and helpers functions
   * Copyright (c) 2003-2015, Jouni Malinen <j@w1.fi>
   *
   * This software may be distributed under the terms of the BSD license.
   * See README for more details.
   */
  
  #ifndef HOSTAPD_CONFIG_H
  #define HOSTAPD_CONFIG_H
  
  #include "common/defs.h"
  #include "utils/list.h"
  #include "ip_addr.h"
  #include "common/wpa_common.h"
  #include "common/ieee802_11_defs.h"
  #include "common/ieee802_11_common.h"
  #include "wps/wps.h"
  #include "fst/fst.h"
  
  /**
   * mesh_conf - local MBSS state and settings
   */
  struct mesh_conf {
  	u8 meshid[32];
  	u8 meshid_len;
  	/* Active Path Selection Protocol Identifier */
  	u8 mesh_pp_id;
  	/* Active Path Selection Metric Identifier */
  	u8 mesh_pm_id;
  	/* Congestion Control Mode Identifier */
  	u8 mesh_cc_id;
  	/* Synchronization Protocol Identifier */
  	u8 mesh_sp_id;
  	/* Authentication Protocol Identifier */
  	u8 mesh_auth_id;
  	u8 *rsn_ie;
  	int rsn_ie_len;
  #define MESH_CONF_SEC_NONE BIT(0)
  #define MESH_CONF_SEC_AUTH BIT(1)
  #define MESH_CONF_SEC_AMPE BIT(2)
  	unsigned int security;
  	int dot11MeshMaxRetries;
  	int dot11MeshRetryTimeout; /* msec */
  	int dot11MeshConfirmTimeout; /* msec */
  	int dot11MeshHoldingTimeout; /* msec */
  };
  
  #define MAX_STA_COUNT 2007
  #define MAX_VLAN_ID 4094
  
  typedef u8 macaddr[ETH_ALEN];
  
  struct mac_acl_entry {
  	macaddr addr;
  	int vlan_id;
  };
  
  struct hostapd_radius_servers;
  struct ft_remote_r0kh;
  struct ft_remote_r1kh;
  
  #define NUM_WEP_KEYS 4
  struct hostapd_wep_keys {
  	u8 idx;
  	u8 *key[NUM_WEP_KEYS];
  	size_t len[NUM_WEP_KEYS];
  	int keys_set;
  	size_t default_len; /* key length used for dynamic key generation */
  };
  
  typedef enum hostap_security_policy {
  	SECURITY_PLAINTEXT = 0,
  	SECURITY_STATIC_WEP = 1,
  	SECURITY_IEEE_802_1X = 2,
  	SECURITY_WPA_PSK = 3,
  	SECURITY_WPA = 4,
  	SECURITY_OSEN = 5
  } secpolicy;
  
  struct hostapd_ssid {
  	u8 ssid[SSID_MAX_LEN];
  	size_t ssid_len;
  	unsigned int ssid_set:1;
  	unsigned int utf8_ssid:1;
  	unsigned int wpa_passphrase_set:1;
  	unsigned int wpa_psk_set:1;
  
  	char vlan[IFNAMSIZ + 1];
  	secpolicy security_policy;
  
  	struct hostapd_wpa_psk *wpa_psk;
  	char *wpa_passphrase;
  	char *wpa_psk_file;
  
  	struct hostapd_wep_keys wep;
  
  #define DYNAMIC_VLAN_DISABLED 0
  #define DYNAMIC_VLAN_OPTIONAL 1
  #define DYNAMIC_VLAN_REQUIRED 2
  	int dynamic_vlan;
  #define DYNAMIC_VLAN_NAMING_WITHOUT_DEVICE 0
  #define DYNAMIC_VLAN_NAMING_WITH_DEVICE 1
  #define DYNAMIC_VLAN_NAMING_END 2
  	int vlan_naming;
  #ifdef CONFIG_FULL_DYNAMIC_VLAN
  	char *vlan_tagged_interface;
  #endif /* CONFIG_FULL_DYNAMIC_VLAN */
  };
  
  
  #define VLAN_ID_WILDCARD -1
  
  struct hostapd_vlan {
  	struct hostapd_vlan *next;
  	int vlan_id; /* VLAN ID or -1 (VLAN_ID_WILDCARD) for wildcard entry */
  	char ifname[IFNAMSIZ + 1];
  	int configured;
  	int dynamic_vlan;
  #ifdef CONFIG_FULL_DYNAMIC_VLAN
  
  #define DVLAN_CLEAN_WLAN_PORT	0x8
  	int clean;
  #endif /* CONFIG_FULL_DYNAMIC_VLAN */
  };
  
  #define PMK_LEN 32
  struct hostapd_sta_wpa_psk_short {
  	struct hostapd_sta_wpa_psk_short *next;
  	u8 psk[PMK_LEN];
  };
  
  struct hostapd_wpa_psk {
  	struct hostapd_wpa_psk *next;
  	int group;
  	u8 psk[PMK_LEN];
  	u8 addr[ETH_ALEN];
  	u8 p2p_dev_addr[ETH_ALEN];
  };
  
  struct hostapd_eap_user {
  	struct hostapd_eap_user *next;
  	u8 *identity;
  	size_t identity_len;
  	struct {
  		int vendor;
  		u32 method;
  	} methods[EAP_MAX_METHODS];
  	u8 *password;
  	size_t password_len;
  	int phase2;
  	int force_version;
  	unsigned int wildcard_prefix:1;
  	unsigned int password_hash:1; /* whether password is hashed with
  				       * nt_password_hash() */
  	unsigned int remediation:1;
  	unsigned int macacl:1;
  	int ttls_auth; /* EAP_TTLS_AUTH_* bitfield */
  	struct hostapd_radius_attr *accept_attr;
  };
  
  struct hostapd_radius_attr {
  	u8 type;
  	struct wpabuf *val;
  	struct hostapd_radius_attr *next;
  };
  
  
  #define NUM_TX_QUEUES 4
  
  struct hostapd_tx_queue_params {
  	int aifs;
  	int cwmin;
  	int cwmax;
  	int burst; /* maximum burst time in 0.1 ms, i.e., 10 = 1 ms */
  };
  
  
  #define MAX_ROAMING_CONSORTIUM_LEN 15
  
  struct hostapd_roaming_consortium {
  	u8 len;
  	u8 oi[MAX_ROAMING_CONSORTIUM_LEN];
  };
  
  struct hostapd_lang_string {
  	u8 lang[3];
  	u8 name_len;
  	u8 name[252];
  };
  
  #define MAX_NAI_REALMS 10
  #define MAX_NAI_REALMLEN 255
  #define MAX_NAI_EAP_METHODS 5
  #define MAX_NAI_AUTH_TYPES 4
  struct hostapd_nai_realm_data {
  	u8 encoding;
  	char realm_buf[MAX_NAI_REALMLEN + 1];
  	char *realm[MAX_NAI_REALMS];
  	u8 eap_method_count;
  	struct hostapd_nai_realm_eap {
  		u8 eap_method;
  		u8 num_auths;
  		u8 auth_id[MAX_NAI_AUTH_TYPES];
  		u8 auth_val[MAX_NAI_AUTH_TYPES];
  	} eap_method[MAX_NAI_EAP_METHODS];
  };
  
  struct anqp_element {
  	struct dl_list list;
  	u16 infoid;
  	struct wpabuf *payload;
  };
  
  
  /**
   * struct hostapd_bss_config - Per-BSS configuration
   */
  struct hostapd_bss_config {
  	char iface[IFNAMSIZ + 1];
  	char bridge[IFNAMSIZ + 1];
  	char vlan_bridge[IFNAMSIZ + 1];
  	char wds_bridge[IFNAMSIZ + 1];
  
  	enum hostapd_logger_level logger_syslog_level, logger_stdout_level;
  
  	unsigned int logger_syslog; /* module bitfield */
  	unsigned int logger_stdout; /* module bitfield */
  
  	int max_num_sta; /* maximum number of STAs in station table */
  
  	int dtim_period;
  	int bss_load_update_period;
  
  	int ieee802_1x; /* use IEEE 802.1X */
  	int eapol_version;
  	int eap_server; /* Use internal EAP server instead of external
  			 * RADIUS server */
  	struct hostapd_eap_user *eap_user;
  	char *eap_user_sqlite;
  	char *eap_sim_db;
  	unsigned int eap_sim_db_timeout;
  	int eap_server_erp; /* Whether ERP is enabled on internal EAP server */
  	struct hostapd_ip_addr own_ip_addr;
  	char *nas_identifier;
  	struct hostapd_radius_servers *radius;
  	int acct_interim_interval;
  	int radius_request_cui;
  	struct hostapd_radius_attr *radius_auth_req_attr;
  	struct hostapd_radius_attr *radius_acct_req_attr;
  	int radius_das_port;
  	unsigned int radius_das_time_window;
  	int radius_das_require_event_timestamp;
  	struct hostapd_ip_addr radius_das_client_addr;
  	u8 *radius_das_shared_secret;
  	size_t radius_das_shared_secret_len;
  
  	struct hostapd_ssid ssid;
  
  	char *eap_req_id_text; /* optional displayable message sent with
  				* EAP Request-Identity */
  	size_t eap_req_id_text_len;
  	int eapol_key_index_workaround;
  
  	size_t default_wep_key_len;
  	int individual_wep_key_len;
  	int wep_rekeying_period;
  	int broadcast_key_idx_min, broadcast_key_idx_max;
  	int eap_reauth_period;
  	int erp_send_reauth_start;
  	char *erp_domain;
  
  	int ieee802_11f; /* use IEEE 802.11f (IAPP) */
  	char iapp_iface[IFNAMSIZ + 1]; /* interface used with IAPP broadcast
  					* frames */
  
  	enum {
  		ACCEPT_UNLESS_DENIED = 0,
  		DENY_UNLESS_ACCEPTED = 1,
  		USE_EXTERNAL_RADIUS_AUTH = 2
  	} macaddr_acl;
  	struct mac_acl_entry *accept_mac;
  	int num_accept_mac;
  	struct mac_acl_entry *deny_mac;
  	int num_deny_mac;
  	int wds_sta;
  	int isolate;
  	int start_disabled;
  
  	int auth_algs; /* bitfield of allowed IEEE 802.11 authentication
  			* algorithms, WPA_AUTH_ALG_{OPEN,SHARED,LEAP} */
  
  	int wpa; /* bitfield of WPA_PROTO_WPA, WPA_PROTO_RSN */
  	int wpa_key_mgmt;
  #ifdef CONFIG_IEEE80211W
  	enum mfp_options ieee80211w;
  	int group_mgmt_cipher;
  	/* dot11AssociationSAQueryMaximumTimeout (in TUs) */
  	unsigned int assoc_sa_query_max_timeout;
  	/* dot11AssociationSAQueryRetryTimeout (in TUs) */
  	int assoc_sa_query_retry_timeout;
  #endif /* CONFIG_IEEE80211W */
  	enum {
  		PSK_RADIUS_IGNORED = 0,
  		PSK_RADIUS_ACCEPTED = 1,
  		PSK_RADIUS_REQUIRED = 2
  	} wpa_psk_radius;
  	int wpa_pairwise;
  	int wpa_group;
  	int wpa_group_rekey;
  	int wpa_strict_rekey;
  	int wpa_gmk_rekey;
  	int wpa_ptk_rekey;
  	int rsn_pairwise;
  	int rsn_preauth;
  	char *rsn_preauth_interfaces;
  	int peerkey;
  
  #ifdef CONFIG_IEEE80211R
  	/* IEEE 802.11r - Fast BSS Transition */
  	u8 mobility_domain[MOBILITY_DOMAIN_ID_LEN];
  	u8 r1_key_holder[FT_R1KH_ID_LEN];
  	u32 r0_key_lifetime;
  	u32 reassociation_deadline;
  	struct ft_remote_r0kh *r0kh_list;
  	struct ft_remote_r1kh *r1kh_list;
  	int pmk_r1_push;
  	int ft_over_ds;
  #endif /* CONFIG_IEEE80211R */
  
  	char *ctrl_interface; /* directory for UNIX domain sockets */
  #ifndef CONFIG_NATIVE_WINDOWS
  	gid_t ctrl_interface_gid;
  #endif /* CONFIG_NATIVE_WINDOWS */
  	int ctrl_interface_gid_set;
  
  	char *ca_cert;
  	char *server_cert;
  	char *private_key;
  	char *private_key_passwd;
  	int check_crl;
  	unsigned int tls_session_lifetime;
  	char *ocsp_stapling_response;
  	char *ocsp_stapling_response_multi;
  	char *dh_file;
  	char *openssl_ciphers;
  	u8 *pac_opaque_encr_key;
  	u8 *eap_fast_a_id;
  	size_t eap_fast_a_id_len;
  	char *eap_fast_a_id_info;
  	int eap_fast_prov;
  	int pac_key_lifetime;
  	int pac_key_refresh_time;
  	int eap_sim_aka_result_ind;
  	int tnc;
  	int fragment_size;
  	u16 pwd_group;
  
  	char *radius_server_clients;
  	int radius_server_auth_port;
  	int radius_server_acct_port;
  	int radius_server_ipv6;
  
  	int use_pae_group_addr; /* Whether to send EAPOL frames to PAE group
  				 * address instead of individual address
  				 * (for driver_wired.c).
  				 */
  
  	int ap_max_inactivity;
  	int ignore_broadcast_ssid;
  	int no_probe_resp_if_max_sta;
  
  	int wmm_enabled;
  	int wmm_uapsd;
  
  	struct hostapd_vlan *vlan;
  
  	macaddr bssid;
  
  	/*
  	 * Maximum listen interval that STAs can use when associating with this
  	 * BSS. If a STA tries to use larger value, the association will be
  	 * denied with status code 51.
  	 */
  	u16 max_listen_interval;
  
  	int disable_pmksa_caching;
  	int okc; /* Opportunistic Key Caching */
  
  	int wps_state;
  #ifdef CONFIG_WPS
  	int wps_independent;
  	int ap_setup_locked;
  	u8 uuid[16];
  	char *wps_pin_requests;
  	char *device_name;
  	char *manufacturer;
  	char *model_name;
  	char *model_number;
  	char *serial_number;
  	u8 device_type[WPS_DEV_TYPE_LEN];
  	char *config_methods;
  	u8 os_version[4];
  	char *ap_pin;
  	int skip_cred_build;
  	u8 *extra_cred;
  	size_t extra_cred_len;
  	int wps_cred_processing;
  	int force_per_enrollee_psk;
  	u8 *ap_settings;
  	size_t ap_settings_len;
  	char *upnp_iface;
  	char *friendly_name;
  	char *manufacturer_url;
  	char *model_description;
  	char *model_url;
  	char *upc;
  	struct wpabuf *wps_vendor_ext[MAX_WPS_VENDOR_EXTENSIONS];
  	int wps_nfc_pw_from_config;
  	int wps_nfc_dev_pw_id;
  	struct wpabuf *wps_nfc_dh_pubkey;
  	struct wpabuf *wps_nfc_dh_privkey;
  	struct wpabuf *wps_nfc_dev_pw;
  #endif /* CONFIG_WPS */
  	int pbc_in_m1;
  	char *server_id;
  
  #define P2P_ENABLED BIT(0)
  #define P2P_GROUP_OWNER BIT(1)
  #define P2P_GROUP_FORMATION BIT(2)
  #define P2P_MANAGE BIT(3)
  #define P2P_ALLOW_CROSS_CONNECTION BIT(4)
  	int p2p;
  #ifdef CONFIG_P2P
  	u8 ip_addr_go[4];
  	u8 ip_addr_mask[4];
  	u8 ip_addr_start[4];
  	u8 ip_addr_end[4];
  #endif /* CONFIG_P2P */
  
  	int disassoc_low_ack;
  	int skip_inactivity_poll;
  
  #define TDLS_PROHIBIT BIT(0)
  #define TDLS_PROHIBIT_CHAN_SWITCH BIT(1)
  	int tdls;
  	int disable_11n;
  	int disable_11ac;
  
  	/* IEEE 802.11v */
  	int time_advertisement;
  	char *time_zone;
  	int wnm_sleep_mode;
  	int bss_transition;
  
  	/* IEEE 802.11u - Interworking */
  	int interworking;
  	int access_network_type;
  	int internet;
  	int asra;
  	int esr;
  	int uesa;
  	int venue_info_set;
  	u8 venue_group;
  	u8 venue_type;
  	u8 hessid[ETH_ALEN];
  
  	/* IEEE 802.11u - Roaming Consortium list */
  	unsigned int roaming_consortium_count;
  	struct hostapd_roaming_consortium *roaming_consortium;
  
  	/* IEEE 802.11u - Venue Name duples */
  	unsigned int venue_name_count;
  	struct hostapd_lang_string *venue_name;
  
  	/* IEEE 802.11u - Network Authentication Type */
  	u8 *network_auth_type;
  	size_t network_auth_type_len;
  
  	/* IEEE 802.11u - IP Address Type Availability */
  	u8 ipaddr_type_availability;
  	u8 ipaddr_type_configured;
  
  	/* IEEE 802.11u - 3GPP Cellular Network */
  	u8 *anqp_3gpp_cell_net;
  	size_t anqp_3gpp_cell_net_len;
  
  	/* IEEE 802.11u - Domain Name */
  	u8 *domain_name;
  	size_t domain_name_len;
  
  	unsigned int nai_realm_count;
  	struct hostapd_nai_realm_data *nai_realm_data;
  
  	struct dl_list anqp_elem; /* list of struct anqp_element */
  
  	u16 gas_comeback_delay;
  	int gas_frag_limit;
  
  	u8 qos_map_set[16 + 2 * 21];
  	unsigned int qos_map_set_len;
  
  	int osen;
  	int proxy_arp;
  	int na_mcast_to_ucast;
  #ifdef CONFIG_HS20
  	int hs20;
  	int disable_dgaf;
  	u16 anqp_domain_id;
  	unsigned int hs20_oper_friendly_name_count;
  	struct hostapd_lang_string *hs20_oper_friendly_name;
  	u8 *hs20_wan_metrics;
  	u8 *hs20_connection_capability;
  	size_t hs20_connection_capability_len;
  	u8 *hs20_operating_class;
  	u8 hs20_operating_class_len;
  	struct hs20_icon {
  		u16 width;
  		u16 height;
  		char language[3];
  		char type[256];
  		char name[256];
  		char file[256];
  	} *hs20_icons;
  	size_t hs20_icons_count;
  	u8 osu_ssid[SSID_MAX_LEN];
  	size_t osu_ssid_len;
  	struct hs20_osu_provider {
  		unsigned int friendly_name_count;
  		struct hostapd_lang_string *friendly_name;
  		char *server_uri;
  		int *method_list;
  		char **icons;
  		size_t icons_count;
  		char *osu_nai;
  		unsigned int service_desc_count;
  		struct hostapd_lang_string *service_desc;
  	} *hs20_osu_providers, *last_osu;
  	size_t hs20_osu_providers_count;
  	unsigned int hs20_deauth_req_timeout;
  	char *subscr_remediation_url;
  	u8 subscr_remediation_method;
  #endif /* CONFIG_HS20 */
  
  	u8 wps_rf_bands; /* RF bands for WPS (WPS_RF_*) */
  
  #ifdef CONFIG_RADIUS_TEST
  	char *dump_msk_file;
  #endif /* CONFIG_RADIUS_TEST */
  
  	struct wpabuf *vendor_elements;
  
  	unsigned int sae_anti_clogging_threshold;
  	int *sae_groups;
  
  	char *wowlan_triggers; /* Wake-on-WLAN triggers */
  
  #ifdef CONFIG_TESTING_OPTIONS
  	u8 bss_load_test[5];
  	u8 bss_load_test_set;
  	struct wpabuf *own_ie_override;
  #endif /* CONFIG_TESTING_OPTIONS */
  
  #define MESH_ENABLED BIT(0)
  	int mesh;
  
  	int radio_measurements;
  
  	int vendor_vht;
  
  	char *no_probe_resp_if_seen_on;
  	char *no_auth_if_seen_on;
  };
  
  
  /**
   * struct hostapd_config - Per-radio interface configuration
   */
  struct hostapd_config {
  	struct hostapd_bss_config **bss, *last_bss;
  	size_t num_bss;
  
  	u16 beacon_int;
  	int rts_threshold;
  	int fragm_threshold;
  	u8 send_probe_response;
  	u8 channel;
  	u8 acs;
  	struct wpa_freq_range_list acs_ch_list;
  	enum hostapd_hw_mode hw_mode; /* HOSTAPD_MODE_IEEE80211A, .. */
  	enum {
  		LONG_PREAMBLE = 0,
  		SHORT_PREAMBLE = 1
  	} preamble;
  
  	int *supported_rates;
  	int *basic_rates;
  
  	const struct wpa_driver_ops *driver;
  	char *driver_params;
  
  	int ap_table_max_size;
  	int ap_table_expiration_time;
  
  	unsigned int track_sta_max_num;
  	unsigned int track_sta_max_age;
  
  	char country[3]; /* first two octets: country code as described in
  			  * ISO/IEC 3166-1. Third octet:
  			  * ' ' (ascii 32): all environments
  			  * 'O': Outdoor environemnt only
  			  * 'I': Indoor environment only
  			  */
  
  	int ieee80211d;
  
  	int ieee80211h; /* DFS */
  
  	/*
  	 * Local power constraint is an octet encoded as an unsigned integer in
  	 * units of decibels. Invalid value -1 indicates that Power Constraint
  	 * element will not be added.
  	 */
  	int local_pwr_constraint;
  
  	/* Control Spectrum Management bit */
  	int spectrum_mgmt_required;
  
  	struct hostapd_tx_queue_params tx_queue[NUM_TX_QUEUES];
  
  	/*
  	 * WMM AC parameters, in same order as 802.1D, i.e.
  	 * 0 = BE (best effort)
  	 * 1 = BK (background)
  	 * 2 = VI (video)
  	 * 3 = VO (voice)
  	 */
  	struct hostapd_wmm_ac_params wmm_ac_params[4];
  
  	int ht_op_mode_fixed;
  	u16 ht_capab;
  	int ieee80211n;
  	int secondary_channel;
  	int no_pri_sec_switch;
  	int require_ht;
  	int obss_interval;
  	u32 vht_capab;
  	int ieee80211ac;
  	int require_vht;
  	u8 vht_oper_chwidth;
  	u8 vht_oper_centr_freq_seg0_idx;
  	u8 vht_oper_centr_freq_seg1_idx;
  
  #ifdef CONFIG_FST
  	struct fst_iface_cfg fst_cfg;
  #endif /* CONFIG_FST */
  
  #ifdef CONFIG_P2P
  	u8 p2p_go_ctwindow;
  #endif /* CONFIG_P2P */
  
  #ifdef CONFIG_TESTING_OPTIONS
  	double ignore_probe_probability;
  	double ignore_auth_probability;
  	double ignore_assoc_probability;
  	double ignore_reassoc_probability;
  	double corrupt_gtk_rekey_mic_probability;
  	int ecsa_ie_only;
  #endif /* CONFIG_TESTING_OPTIONS */
  
  #ifdef CONFIG_ACS
  	unsigned int acs_num_scans;
  	struct acs_bias {
  		int channel;
  		double bias;
  	} *acs_chan_bias;
  	unsigned int num_acs_chan_bias;
  #endif /* CONFIG_ACS */
  };
  
  
  int hostapd_mac_comp(const void *a, const void *b);
  int hostapd_mac_comp_empty(const void *a);
  struct hostapd_config * hostapd_config_defaults(void);
  void hostapd_config_defaults_bss(struct hostapd_bss_config *bss);
  void hostapd_config_free_eap_user(struct hostapd_eap_user *user);
  void hostapd_config_clear_wpa_psk(struct hostapd_wpa_psk **p);
  void hostapd_config_free_bss(struct hostapd_bss_config *conf);
  void hostapd_config_free(struct hostapd_config *conf);
  int hostapd_maclist_found(struct mac_acl_entry *list, int num_entries,
  			  const u8 *addr, int *vlan_id);
  int hostapd_rate_found(int *list, int rate);
  const u8 * hostapd_get_psk(const struct hostapd_bss_config *conf,
  			   const u8 *addr, const u8 *p2p_dev_addr,
  			   const u8 *prev_psk);
  int hostapd_setup_wpa_psk(struct hostapd_bss_config *conf);
  int hostapd_vlan_id_valid(struct hostapd_vlan *vlan, int vlan_id);
  const char * hostapd_get_vlan_id_ifname(struct hostapd_vlan *vlan,
  					int vlan_id);
  struct hostapd_radius_attr *
  hostapd_config_get_radius_attr(struct hostapd_radius_attr *attr, u8 type);
  int hostapd_config_check(struct hostapd_config *conf, int full_config);
  void hostapd_set_security_params(struct hostapd_bss_config *bss,
  				 int full_config);
  
  #endif /* HOSTAPD_CONFIG_H */
  