484 lines
13 KiB
C
484 lines
13 KiB
C
/*
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* wpa_supplicant - Internal definitions
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* Copyright (c) 2003-2006, Jouni Malinen <jkmaline@cc.hut.fi>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*
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* Alternatively, this software may be distributed under the terms of BSD
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* license.
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*
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* See README and COPYING for more details.
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*/
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#ifndef WPA_SUPPLICANT_I_H
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#define WPA_SUPPLICANT_I_H
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#include "driver.h"
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struct wpa_blacklist {
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struct wpa_blacklist *next;
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u8 bssid[ETH_ALEN];
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int count;
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};
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struct wpa_scan_result;
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struct wpa_sm;
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struct wpa_supplicant;
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/**
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* struct wpa_interface - Parameters for wpa_supplicant_add_iface()
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*/
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struct wpa_interface {
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/**
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* confname - Configuration name (file or profile) name
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*
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* This can also be %NULL when a configuration file is not used. In
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* that case, ctrl_interface must be set to allow the interface to be
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* configured.
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*/
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const char *confname;
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/**
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* ctrl_interface - Control interface parameter
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*
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* If a configuration file is not used, this variable can be used to
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* set the ctrl_interface parameter that would have otherwise been read
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* from the configuration file. If both confname and ctrl_interface are
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* set, ctrl_interface is used to override the value from configuration
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* file.
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*/
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const char *ctrl_interface;
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/**
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* driver - Driver interface name, or %NULL to use the default driver
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*/
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const char *driver;
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/**
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* driver_param - Driver interface parameters
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*
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* If a configuration file is not used, this variable can be used to
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* set the driver_param parameters that would have otherwise been read
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* from the configuration file. If both confname and driver_param are
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* set, driver_param is used to override the value from configuration
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* file.
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*/
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const char *driver_param;
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/**
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* ifname - Interface name
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*/
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const char *ifname;
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};
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/**
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* struct wpa_params - Parameters for wpa_supplicant_init()
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*/
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struct wpa_params {
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/**
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* daemonize - Run %wpa_supplicant in the background
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*/
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int daemonize;
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/**
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* wait_for_interface - Wait for the network interface to appear
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*
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* If set, %wpa_supplicant will wait until all the configured network
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* interfaces are available before starting processing. Please note
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* that in many cases, a better alternative would be to start
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* %wpa_supplicant without network interfaces and add the interfaces
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* dynamically whenever they become available.
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*/
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int wait_for_interface;
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/**
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* wait_for_monitor - Wait for a monitor program before starting
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*/
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int wait_for_monitor;
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/**
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* pid_file - Path to a PID (process ID) file
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*
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* If this and daemonize are set, process ID of the background process
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* will be written to the specified file.
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*/
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char *pid_file;
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/**
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* wpa_debug_level - Debugging verbosity level (e.g., MSG_INFO)
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*/
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int wpa_debug_level;
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/**
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* wpa_debug_show_keys - Whether keying material is included in debug
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*
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* This parameter can be used to allow keying material to be included
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* in debug messages. This is a security risk and this option should
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* not be enabled in normal configuration. If needed during
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* development or while troubleshooting, this option can provide more
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* details for figuring out what is happening.
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*/
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int wpa_debug_show_keys;
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/**
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* wpa_debug_timestamp - Whether to include timestamp in debug messages
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*/
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int wpa_debug_timestamp;
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/**
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* ctrl_interface - Global ctrl_iface path/parameter
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*/
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char *ctrl_interface;
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};
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/**
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* struct wpa_global - Internal, global data for all %wpa_supplicant interfaces
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*
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* This structure is initialized by calling wpa_supplicant_init() when starting
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* %wpa_supplicant.
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*/
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struct wpa_global {
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struct wpa_supplicant *ifaces;
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struct wpa_params params;
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int ctrl_sock;
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};
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/**
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* struct wpa_supplicant - Internal data for wpa_supplicant interface
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*
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* This structure contains the internal data for core wpa_supplicant code. This
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* should be only used directly from the core code. However, a pointer to this
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* data is used from other files as an arbitrary context pointer in calls to
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* core functions.
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*/
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struct wpa_supplicant {
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struct wpa_global *global;
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struct wpa_supplicant *next;
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struct l2_packet_data *l2;
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unsigned char own_addr[ETH_ALEN];
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char ifname[100];
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char *confname;
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struct wpa_config *conf;
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int countermeasures;
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time_t last_michael_mic_error;
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u8 bssid[ETH_ALEN];
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int reassociate; /* reassociation requested */
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int disconnected; /* all connections disabled; i.e., do no reassociate
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* before this has been cleared */
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struct wpa_ssid *current_ssid;
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/* Selected configuration (based on Beacon/ProbeResp WPA IE) */
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int pairwise_cipher;
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int group_cipher;
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int key_mgmt;
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void *drv_priv; /* private data used by driver_ops */
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struct wpa_ssid *prev_scan_ssid; /* previously scanned SSID;
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* NULL = not yet initialized (start
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* with broadcast SSID)
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* BROADCAST_SSID_SCAN = broadcast
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* SSID was used in the previous scan
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*/
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#define BROADCAST_SSID_SCAN ((struct wpa_ssid *) 1)
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struct wpa_scan_result *scan_results;
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int num_scan_results;
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struct wpa_driver_ops *driver;
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int interface_removed; /* whether the network interface has been
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* removed */
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struct wpa_sm *wpa;
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struct eapol_sm *eapol;
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int ctrl_sock; /* UNIX domain socket for control interface or -1 if
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* not used */
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struct wpa_ctrl_dst *ctrl_dst;
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wpa_states wpa_state;
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int new_connection;
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int reassociated_connection;
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int eapol_received; /* number of EAPOL packets received after the
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* previous association event */
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struct scard_data *scard;
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unsigned char last_eapol_src[ETH_ALEN];
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int keys_cleared;
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struct wpa_blacklist *blacklist;
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int scan_req; /* manual scan request; this forces a scan even if there
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* are no enabled networks in the configuration */
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};
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/* wpa_supplicant.c */
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void wpa_supplicant_cancel_scan(struct wpa_supplicant *wpa_s);
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int wpa_supplicant_reload_configuration(struct wpa_supplicant *wpa_s);
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const char * wpa_supplicant_state_txt(int state);
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int wpa_supplicant_driver_init(struct wpa_supplicant *wpa_s,
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int wait_for_interface);
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struct wpa_blacklist * wpa_blacklist_get(struct wpa_supplicant *wpa_s,
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const u8 *bssid);
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int wpa_blacklist_add(struct wpa_supplicant *wpa_s, const u8 *bssid);
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void wpa_blacklist_clear(struct wpa_supplicant *wpa_s);
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int wpa_supplicant_set_suites(struct wpa_supplicant *wpa_s,
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struct wpa_scan_result *bss,
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struct wpa_ssid *ssid,
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u8 *wpa_ie, size_t *wpa_ie_len);
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void wpa_supplicant_associate(struct wpa_supplicant *wpa_s,
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struct wpa_scan_result *bss,
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struct wpa_ssid *ssid);
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void wpa_supplicant_set_non_wpa_policy(struct wpa_supplicant *wpa_s,
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struct wpa_ssid *ssid);
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void wpa_supplicant_initiate_eapol(struct wpa_supplicant *wpa_s);
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int wpa_supplicant_get_scan_results(struct wpa_supplicant *wpa_s);
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void wpa_clear_keys(struct wpa_supplicant *wpa_s, const u8 *addr);
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void wpa_supplicant_req_auth_timeout(struct wpa_supplicant *wpa_s,
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int sec, int usec);
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void wpa_supplicant_set_state(struct wpa_supplicant *wpa_s, wpa_states state);
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struct wpa_ssid * wpa_supplicant_get_ssid(struct wpa_supplicant *wpa_s);
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void wpa_supplicant_cancel_auth_timeout(struct wpa_supplicant *wpa_s);
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void wpa_supplicant_deauthenticate(struct wpa_supplicant *wpa_s,
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int reason_code);
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void wpa_supplicant_disassociate(struct wpa_supplicant *wpa_s,
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int reason_code);
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void wpa_supplicant_req_scan(struct wpa_supplicant *wpa_s, int sec, int usec);
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void wpa_show_license(void);
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struct wpa_supplicant * wpa_supplicant_add_iface(struct wpa_global *global,
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struct wpa_interface *iface);
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int wpa_supplicant_remove_iface(struct wpa_global *global,
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struct wpa_supplicant *wpa_s);
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struct wpa_supplicant * wpa_supplicant_get_iface(struct wpa_global *global,
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const char *ifname);
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struct wpa_global * wpa_supplicant_init(struct wpa_params *params);
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int wpa_supplicant_run(struct wpa_global *global);
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void wpa_supplicant_deinit(struct wpa_global *global);
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int wpa_supplicant_scard_init(struct wpa_supplicant *wpa_s,
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struct wpa_ssid *ssid);
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/* driver_ops */
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static inline void * wpa_drv_init(struct wpa_supplicant *wpa_s,
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const char *ifname)
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{
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if (wpa_s->driver->init) {
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return wpa_s->driver->init(wpa_s, ifname);
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}
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return NULL;
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}
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static inline void wpa_drv_deinit(struct wpa_supplicant *wpa_s)
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{
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if (wpa_s->driver->deinit)
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wpa_s->driver->deinit(wpa_s->drv_priv);
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}
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static inline int wpa_drv_set_param(struct wpa_supplicant *wpa_s,
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const char *param)
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{
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if (wpa_s->driver->set_param)
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return wpa_s->driver->set_param(wpa_s->drv_priv, param);
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return 0;
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}
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static inline int wpa_drv_set_drop_unencrypted(struct wpa_supplicant *wpa_s,
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int enabled)
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{
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if (wpa_s->driver->set_drop_unencrypted) {
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return wpa_s->driver->set_drop_unencrypted(wpa_s->drv_priv,
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enabled);
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}
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return -1;
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}
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static inline int wpa_drv_set_countermeasures(struct wpa_supplicant *wpa_s,
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int enabled)
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{
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if (wpa_s->driver->set_countermeasures) {
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return wpa_s->driver->set_countermeasures(wpa_s->drv_priv,
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enabled);
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}
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return -1;
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}
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static inline int wpa_drv_set_auth_alg(struct wpa_supplicant *wpa_s,
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int auth_alg)
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{
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if (wpa_s->driver->set_auth_alg) {
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return wpa_s->driver->set_auth_alg(wpa_s->drv_priv,
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auth_alg);
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}
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return -1;
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}
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static inline int wpa_drv_set_wpa(struct wpa_supplicant *wpa_s, int enabled)
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{
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if (wpa_s->driver->set_wpa) {
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return wpa_s->driver->set_wpa(wpa_s->drv_priv, enabled);
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}
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return 0;
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}
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static inline int wpa_drv_associate(struct wpa_supplicant *wpa_s,
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struct wpa_driver_associate_params *params)
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{
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if (wpa_s->driver->associate) {
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return wpa_s->driver->associate(wpa_s->drv_priv, params);
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}
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return -1;
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}
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static inline int wpa_drv_scan(struct wpa_supplicant *wpa_s, const u8 *ssid,
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size_t ssid_len)
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{
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if (wpa_s->driver->scan) {
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return wpa_s->driver->scan(wpa_s->drv_priv, ssid, ssid_len);
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}
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return -1;
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}
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static inline int wpa_drv_get_scan_results(struct wpa_supplicant *wpa_s,
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struct wpa_scan_result *results,
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size_t max_size)
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{
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if (wpa_s->driver->get_scan_results) {
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return wpa_s->driver->get_scan_results(wpa_s->drv_priv,
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results, max_size);
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}
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return -1;
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}
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static inline int wpa_drv_get_bssid(struct wpa_supplicant *wpa_s, u8 *bssid)
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{
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if (wpa_s->driver->get_bssid) {
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return wpa_s->driver->get_bssid(wpa_s->drv_priv, bssid);
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}
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return -1;
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}
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static inline int wpa_drv_get_ssid(struct wpa_supplicant *wpa_s, u8 *ssid)
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{
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if (wpa_s->driver->get_ssid) {
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return wpa_s->driver->get_ssid(wpa_s->drv_priv, ssid);
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}
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return -1;
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}
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static inline int wpa_drv_set_key(struct wpa_supplicant *wpa_s, wpa_alg alg,
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const u8 *addr, int key_idx, int set_tx,
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const u8 *seq, size_t seq_len,
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const u8 *key, size_t key_len)
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{
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if (wpa_s->driver->set_key) {
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wpa_s->keys_cleared = 0;
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return wpa_s->driver->set_key(wpa_s->drv_priv, alg, addr,
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key_idx, set_tx, seq, seq_len,
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key, key_len);
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}
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return -1;
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}
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static inline int wpa_drv_deauthenticate(struct wpa_supplicant *wpa_s,
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const u8 *addr, int reason_code)
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{
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if (wpa_s->driver->deauthenticate) {
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return wpa_s->driver->deauthenticate(wpa_s->drv_priv, addr,
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reason_code);
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}
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return -1;
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}
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static inline int wpa_drv_disassociate(struct wpa_supplicant *wpa_s,
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const u8 *addr, int reason_code)
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{
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if (wpa_s->driver->disassociate) {
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return wpa_s->driver->disassociate(wpa_s->drv_priv, addr,
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reason_code);
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}
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return -1;
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}
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static inline int wpa_drv_add_pmkid(struct wpa_supplicant *wpa_s,
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const u8 *bssid, const u8 *pmkid)
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{
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if (wpa_s->driver->add_pmkid) {
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return wpa_s->driver->add_pmkid(wpa_s->drv_priv, bssid, pmkid);
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}
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return -1;
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}
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static inline int wpa_drv_remove_pmkid(struct wpa_supplicant *wpa_s,
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const u8 *bssid, const u8 *pmkid)
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{
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if (wpa_s->driver->remove_pmkid) {
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return wpa_s->driver->remove_pmkid(wpa_s->drv_priv, bssid,
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pmkid);
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}
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return -1;
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}
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static inline int wpa_drv_flush_pmkid(struct wpa_supplicant *wpa_s)
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{
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if (wpa_s->driver->flush_pmkid) {
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return wpa_s->driver->flush_pmkid(wpa_s->drv_priv);
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}
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return -1;
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}
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static inline int wpa_drv_get_capa(struct wpa_supplicant *wpa_s,
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struct wpa_driver_capa *capa)
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{
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if (wpa_s->driver->get_capa) {
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return wpa_s->driver->get_capa(wpa_s->drv_priv, capa);
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}
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return -1;
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}
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static inline void wpa_drv_poll(struct wpa_supplicant *wpa_s)
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{
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if (wpa_s->driver->poll) {
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wpa_s->driver->poll(wpa_s->drv_priv);
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}
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}
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static inline const char * wpa_drv_get_ifname(struct wpa_supplicant *wpa_s)
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{
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if (wpa_s->driver->get_ifname) {
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return wpa_s->driver->get_ifname(wpa_s->drv_priv);
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}
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return NULL;
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}
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static inline const u8 * wpa_drv_get_mac_addr(struct wpa_supplicant *wpa_s)
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{
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if (wpa_s->driver->get_mac_addr) {
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return wpa_s->driver->get_mac_addr(wpa_s->drv_priv);
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}
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return NULL;
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}
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static inline int wpa_drv_send_eapol(struct wpa_supplicant *wpa_s,
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const u8 *dst, u16 proto,
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const u8 *data, size_t data_len)
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{
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if (wpa_s->driver->send_eapol)
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return wpa_s->driver->send_eapol(wpa_s->drv_priv, dst, proto,
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data, data_len);
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return -1;
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}
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#endif /* WPA_SUPPLICANT_I_H */
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