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fragattacks/src/ap/hostapd.h
Jouni Malinen 93827f456a hostapd: Allow external management frame processing or testing 
This enables more convenient protocol testing of station side
functionality in various error cases and unexpected sequences without
having to implement each test scenario within hostapd.
ext_mgmt_frame_handle parameter can be set to 1 to move all management
frame processing into an external program through control interface
events (MGMT-RX and MGMT-TX-STATUS) and command (MGMT_TX).

Signed-hostap: Jouni Malinen <j@w1.fi>
2013-12-26 16:55:45 +02:00

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/*
* hostapd / Initialization and configuration
* Copyright (c) 2002-2013, Jouni Malinen <j@w1.fi>
*
* 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 "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 hostapd_iface;
struct hostapd_dynamic_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;
size_t count_dynamic;
int global_ctrl_sock;
char *global_iface_path;
char *global_iface_name;
#ifndef CONFIG_NATIVE_WINDOWS
gid_t ctrl_iface_group;
#endif /* CONFIG_NATIVE_WINDOWS */
struct hostapd_iface **iface;
struct hostapd_dynamic_iface **dynamic_iface;
size_t terminate_on_error;
};
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 {
WPS_STATUS_SUCCESS = 1,
WPS_STATUS_FAILURE
};
enum pbc_status {
WPS_PBC_STATUS_DISABLE,
WPS_PBC_STATUS_ACTIVE,
WPS_PBC_STATUS_TIMEOUT,
WPS_PBC_STATUS_OVERLAP
};
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;
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;
int parameter_set_count;
/* Time Advertisement */
u8 time_update_counter;
struct wpabuf *time_adv;
#ifdef CONFIG_FULL_DYNAMIC_VLAN
struct full_dynamic_vlan *full_dynamic_vlan;
#endif /* CONFIG_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;
#ifdef CONFIG_WPS
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;
#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 */
#ifdef CONFIG_INTERWORKING
size_t gas_frag_limit;
#endif /* CONFIG_INTERWORKING */
#ifdef CONFIG_SQLITE
struct hostapd_eap_user tmp_eap_user;
#endif /* CONFIG_SQLITE */
#ifdef CONFIG_SAE
/** Key used for generating SAE anti-clogging tokens */
u8 sae_token_key[8];
struct os_reltime last_sae_token_key_update;
#endif /* CONFIG_SAE */
#ifdef CONFIG_TESTING_OPTIONS
int ext_mgmt_frame_handling;
#endif /* CONFIG_TESTING_OPTIONS */
};
/**
* 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 {
HAPD_IFACE_UNINITIALIZED,
HAPD_IFACE_DISABLED,
HAPD_IFACE_COUNTRY_UPDATE,
HAPD_IFACE_ACS,
HAPD_IFACE_HT_SCAN,
HAPD_IFACE_DFS,
HAPD_IFACE_ENABLED
} state;
size_t num_bss;
struct hostapd_data **bss;
unsigned int wait_channel_update:1;
unsigned int cac_started: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];
unsigned int drv_flags;
/*
* 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;
/* 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 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;
#ifdef CONFIG_ACS
unsigned int acs_num_completed_scans;
#endif /* CONFIG_ACS */
void (*scan_cb)(struct hostapd_iface *iface);
};
/**
* struct hostapd_dynamic_iface - hostapd per dynamically allocated
* or added interface data structure
*/
struct hostapd_dynamic_iface {
char parent[IFNAMSIZ + 1];
char iface[IFNAMSIZ + 1];
unsigned int usage;
};
/* 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);
void hostapd_cleanup_cs_params(struct hostapd_data *hapd);
/* 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);
#endif /* HOSTAPD_H */
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