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* hostapd / Initialization and configuration
* Copyright (c) 2002-2014, Jouni Malinen <>
* This software may be distributed under the terms of the BSD license.
* See README for more details.
#ifndef HOSTAPD_H
#define HOSTAPD_H
#include "common/defs.h"
#include "utils/list.h"
#include "ap_config.h"
#include "drivers/driver.h"
struct wpa_ctrl_dst;
struct radius_server_data;
struct upnp_wps_device_sm;
struct hostapd_data;
struct sta_info;
struct ieee80211_ht_capabilities;
struct full_dynamic_vlan;
enum wps_event;
union wps_event_data;
struct mesh_conf;
#endif /* CONFIG_MESH */
struct hostapd_iface;
struct hapd_interfaces {
int (*reload_config)(struct hostapd_iface *iface);
struct hostapd_config * (*config_read_cb)(const char *config_fname);
int (*ctrl_iface_init)(struct hostapd_data *hapd);
void (*ctrl_iface_deinit)(struct hostapd_data *hapd);
int (*for_each_interface)(struct hapd_interfaces *interfaces,
int (*cb)(struct hostapd_iface *iface,
void *ctx), void *ctx);
int (*driver_init)(struct hostapd_iface *iface);
size_t count;
int global_ctrl_sock;
struct wpa_ctrl_dst *global_ctrl_dst;
char *global_iface_path;
char *global_iface_name;
gid_t ctrl_iface_group;
struct hostapd_iface **iface;
size_t terminate_on_error;
struct dynamic_iface *vlan_priv;
#endif /* CONFIG_NO_VLAN */
enum hostapd_chan_status {
HOSTAPD_CHAN_VALID = 0, /* channel is ready */
HOSTAPD_CHAN_INVALID = 1, /* no usable channel found */
HOSTAPD_CHAN_ACS = 2, /* ACS work being performed */
struct hostapd_probereq_cb {
int (*cb)(void *ctx, const u8 *sa, const u8 *da, const u8 *bssid,
const u8 *ie, size_t ie_len, int ssi_signal);
void *ctx;
#define HOSTAPD_RATE_BASIC 0x00000001
struct hostapd_rate_data {
int rate; /* rate in 100 kbps */
int flags; /* HOSTAPD_RATE_ flags */
struct hostapd_frame_info {
u32 channel;
u32 datarate;
int ssi_signal; /* dBm */
enum wps_status {
enum pbc_status {
struct wps_stat {
enum wps_status status;
enum wps_error_indication failure_reason;
enum pbc_status pbc_status;
u8 peer_addr[ETH_ALEN];
* struct hostapd_data - hostapd per-BSS data structure
struct hostapd_data {
struct hostapd_iface *iface;
struct hostapd_config *iconf;
struct hostapd_bss_config *conf;
int interface_added; /* virtual interface added for this BSS */
unsigned int started:1;
unsigned int disabled:1;
unsigned int reenable_beacon:1;
u8 own_addr[ETH_ALEN];
int num_sta; /* number of entries in sta_list */
struct sta_info *sta_list; /* STA info list head */
#define STA_HASH_SIZE 256
#define STA_HASH(sta) (sta[5])
struct sta_info *sta_hash[STA_HASH_SIZE];
* Bitfield for indicating which AIDs are allocated. Only AID values
* 1-2007 are used and as such, the bit at index 0 corresponds to AID
* 1.
#define AID_WORDS ((2008 + 31) / 32)
u32 sta_aid[AID_WORDS];
const struct wpa_driver_ops *driver;
void *drv_priv;
void (*new_assoc_sta_cb)(struct hostapd_data *hapd,
struct sta_info *sta, int reassoc);
void *msg_ctx; /* ctx for wpa_msg() calls */
void *msg_ctx_parent; /* parent interface ctx for wpa_msg() calls */
struct radius_client_data *radius;
u32 acct_session_id_hi, acct_session_id_lo;
struct radius_das_data *radius_das;
struct iapp_data *iapp;
struct hostapd_cached_radius_acl *acl_cache;
struct hostapd_acl_query_data *acl_queries;
struct wpa_authenticator *wpa_auth;
struct eapol_authenticator *eapol_auth;
struct rsn_preauth_interface *preauth_iface;
struct os_reltime michael_mic_failure;
int michael_mic_failures;
int tkip_countermeasures;
int ctrl_sock;
struct wpa_ctrl_dst *ctrl_dst;
void *ssl_ctx;
void *eap_sim_db_priv;
struct radius_server_data *radius_srv;
struct dl_list erp_keys; /* struct eap_server_erp_key */
int parameter_set_count;
/* Time Advertisement */
u8 time_update_counter;
struct wpabuf *time_adv;
struct full_dynamic_vlan *full_dynamic_vlan;
struct l2_packet_data *l2;
struct wps_context *wps;
int beacon_set_done;
struct wpabuf *wps_beacon_ie;
struct wpabuf *wps_probe_resp_ie;
unsigned int ap_pin_failures;
unsigned int ap_pin_failures_consecutive;
struct upnp_wps_device_sm *wps_upnp;
unsigned int ap_pin_lockout_time;
struct wps_stat wps_stats;
#endif /* CONFIG_WPS */
struct hostapd_probereq_cb *probereq_cb;
size_t num_probereq_cb;
void (*public_action_cb)(void *ctx, const u8 *buf, size_t len,
int freq);
void *public_action_cb_ctx;
void (*public_action_cb2)(void *ctx, const u8 *buf, size_t len,
int freq);
void *public_action_cb2_ctx;
int (*vendor_action_cb)(void *ctx, const u8 *buf, size_t len,
int freq);
void *vendor_action_cb_ctx;
void (*wps_reg_success_cb)(void *ctx, const u8 *mac_addr,
const u8 *uuid_e);
void *wps_reg_success_cb_ctx;
void (*wps_event_cb)(void *ctx, enum wps_event event,
union wps_event_data *data);
void *wps_event_cb_ctx;
void (*sta_authorized_cb)(void *ctx, const u8 *mac_addr,
int authorized, const u8 *p2p_dev_addr);
void *sta_authorized_cb_ctx;
void (*setup_complete_cb)(void *ctx);
void *setup_complete_cb_ctx;
void (*new_psk_cb)(void *ctx, const u8 *mac_addr,
const u8 *p2p_dev_addr, const u8 *psk,
size_t psk_len);
void *new_psk_cb_ctx;
/* channel switch parameters */
struct hostapd_freq_params cs_freq_params;
u8 cs_count;
int cs_block_tx;
unsigned int cs_c_off_beacon;
unsigned int cs_c_off_proberesp;
int csa_in_progress;
/* BSS Load */
unsigned int bss_load_update_timeout;
#ifdef CONFIG_P2P
struct p2p_data *p2p;
struct p2p_group *p2p_group;
struct wpabuf *p2p_beacon_ie;
struct wpabuf *p2p_probe_resp_ie;
/* Number of non-P2P association stations */
int num_sta_no_p2p;
/* Periodic NoA (used only when no non-P2P clients in the group) */
int noa_enabled;
int noa_start;
int noa_duration;
#endif /* CONFIG_P2P */
size_t gas_frag_limit;
struct l2_packet_data *sock_dhcp;
struct l2_packet_data *sock_ndisc;
#endif /* CONFIG_PROXYARP */
int num_plinks;
int max_plinks;
void (*mesh_sta_free_cb)(struct sta_info *sta);
struct wpabuf *mesh_pending_auth;
struct os_reltime mesh_pending_auth_time;
#endif /* CONFIG_MESH */
struct hostapd_eap_user tmp_eap_user;
#endif /* CONFIG_SQLITE */
/** Key used for generating SAE anti-clogging tokens */
u8 sae_token_key[8];
struct os_reltime last_sae_token_key_update;
int dot11RSNASAERetransPeriod; /* msec */
#endif /* CONFIG_SAE */
unsigned int ext_mgmt_frame_handling:1;
unsigned int ext_eapol_frame_io:1;
struct l2_packet_data *l2_test;
struct hostapd_sta_info {
struct dl_list list;
u8 addr[ETH_ALEN];
struct os_reltime last_seen;
* struct hostapd_iface - hostapd per-interface data structure
struct hostapd_iface {
struct hapd_interfaces *interfaces;
void *owner;
char *config_fname;
struct hostapd_config *conf;
char phy[16]; /* Name of the PHY (radio) */
enum hostapd_iface_state {
} state;
struct mesh_conf *mconf;
#endif /* CONFIG_MESH */
size_t num_bss;
struct hostapd_data **bss;
unsigned int wait_channel_update:1;
unsigned int cac_started:1;
struct fst_iface *fst;
const struct wpabuf *fst_ies;
#endif /* CONFIG_FST */
* When set, indicates that the driver will handle the AP
* teardown: delete global keys, station keys, and stations.
unsigned int driver_ap_teardown:1;
int num_ap; /* number of entries in ap_list */
struct ap_info *ap_list; /* AP info list head */
struct ap_info *ap_hash[STA_HASH_SIZE];
u64 drv_flags;
/* SMPS modes supported by the driver (WPA_DRIVER_SMPS_MODE_*) */
unsigned int smps_modes;
* A bitmap of supported protocols for probe response offload. See
* struct wpa_driver_capa in driver.h
unsigned int probe_resp_offloads;
/* extended capabilities supported by the driver */
const u8 *extended_capa, *extended_capa_mask;
unsigned int extended_capa_len;
unsigned int drv_max_acl_mac_addrs;
struct hostapd_hw_modes *hw_features;
int num_hw_features;
struct hostapd_hw_modes *current_mode;
/* Rates that are currently used (i.e., filtered copy of
* current_mode->channels */
int num_rates;
struct hostapd_rate_data *current_rates;
int *basic_rates;
int freq;
u16 hw_flags;
/* Number of associated Non-ERP stations (i.e., stations using 802.11b
* in 802.11g BSS) */
int num_sta_non_erp;
/* Number of associated stations that do not support Short Slot Time */
int num_sta_no_short_slot_time;
/* Number of associated stations that do not support Short Preamble */
int num_sta_no_short_preamble;
int olbc; /* Overlapping Legacy BSS Condition */
/* Number of HT associated stations that do not support greenfield */
int num_sta_ht_no_gf;
/* Number of associated non-HT stations */
int num_sta_no_ht;
/* Number of HT associated stations 20 MHz */
int num_sta_ht_20mhz;
/* Number of HT40 intolerant stations */
int num_sta_ht40_intolerant;
/* Overlapping BSS information */
int olbc_ht;
u16 ht_op_mode;
/* surveying helpers */
/* number of channels surveyed */
unsigned int chans_surveyed;
/* lowest observed noise floor in dBm */
s8 lowest_nf;
/* channel utilization calculation */
u64 last_channel_time;
u64 last_channel_time_busy;
u8 channel_utilization;
unsigned int dfs_cac_ms;
struct os_reltime dfs_cac_start;
/* Latched with the actual secondary channel information and will be
* used while juggling between HT20 and HT40 modes. */
int secondary_ch;
unsigned int acs_num_completed_scans;
#endif /* CONFIG_ACS */
void (*scan_cb)(struct hostapd_iface *iface);
int num_ht40_scan_tries;
struct dl_list sta_seen; /* struct hostapd_sta_info */
unsigned int num_sta_seen;
/* hostapd.c */
int hostapd_for_each_interface(struct hapd_interfaces *interfaces,
int (*cb)(struct hostapd_iface *iface,
void *ctx), void *ctx);
int hostapd_reload_config(struct hostapd_iface *iface);
struct hostapd_data *
hostapd_alloc_bss_data(struct hostapd_iface *hapd_iface,
struct hostapd_config *conf,
struct hostapd_bss_config *bss);
int hostapd_setup_interface(struct hostapd_iface *iface);
int hostapd_setup_interface_complete(struct hostapd_iface *iface, int err);
void hostapd_interface_deinit(struct hostapd_iface *iface);
void hostapd_interface_free(struct hostapd_iface *iface);
struct hostapd_iface * hostapd_init(struct hapd_interfaces *interfaces,
const char *config_file);
struct hostapd_iface *
hostapd_interface_init_bss(struct hapd_interfaces *interfaces, const char *phy,
const char *config_fname, int debug);
void hostapd_new_assoc_sta(struct hostapd_data *hapd, struct sta_info *sta,
int reassoc);
void hostapd_interface_deinit_free(struct hostapd_iface *iface);
int hostapd_enable_iface(struct hostapd_iface *hapd_iface);
int hostapd_reload_iface(struct hostapd_iface *hapd_iface);
int hostapd_disable_iface(struct hostapd_iface *hapd_iface);
int hostapd_add_iface(struct hapd_interfaces *ifaces, char *buf);
int hostapd_remove_iface(struct hapd_interfaces *ifaces, char *buf);
void hostapd_channel_list_updated(struct hostapd_iface *iface, int initiator);
void hostapd_set_state(struct hostapd_iface *iface, enum hostapd_iface_state s);
const char * hostapd_state_text(enum hostapd_iface_state s);
int hostapd_switch_channel(struct hostapd_data *hapd,
struct csa_settings *settings);
hostapd_switch_channel_fallback(struct hostapd_iface *iface,
const struct hostapd_freq_params *freq_params);
void hostapd_cleanup_cs_params(struct hostapd_data *hapd);
void hostapd_periodic_iface(struct hostapd_iface *iface);
/* utils.c */
int hostapd_register_probereq_cb(struct hostapd_data *hapd,
int (*cb)(void *ctx, const u8 *sa,
const u8 *da, const u8 *bssid,
const u8 *ie, size_t ie_len,
int ssi_signal),
void *ctx);
void hostapd_prune_associations(struct hostapd_data *hapd, const u8 *addr);
/* drv_callbacks.c (TODO: move to somewhere else?) */
int hostapd_notif_assoc(struct hostapd_data *hapd, const u8 *addr,
const u8 *ie, size_t ielen, int reassoc);
void hostapd_notif_disassoc(struct hostapd_data *hapd, const u8 *addr);
void hostapd_event_sta_low_ack(struct hostapd_data *hapd, const u8 *addr);
void hostapd_event_connect_failed_reason(struct hostapd_data *hapd,
const u8 *addr, int reason_code);
int hostapd_probe_req_rx(struct hostapd_data *hapd, const u8 *sa, const u8 *da,
const u8 *bssid, const u8 *ie, size_t ie_len,
int ssi_signal);
void hostapd_event_ch_switch(struct hostapd_data *hapd, int freq, int ht,
int offset, int width, int cf1, int cf2);
const struct hostapd_eap_user *
hostapd_get_eap_user(struct hostapd_data *hapd, const u8 *identity,
size_t identity_len, int phase2);
struct hostapd_data * hostapd_get_iface(struct hapd_interfaces *interfaces,
const char *ifname);
void fst_hostapd_fill_iface_obj(struct hostapd_data *hapd,
struct fst_wpa_obj *iface_obj);
#endif /* CONFIG_FST */
#endif /* HOSTAPD_H */