workbench/network/WirelessManager/wpa_supplicant/wpa_supplicant_i.h

   1 /*
   2  * wpa_supplicant - Internal definitions
   3  * Copyright (c) 2003-2010, Jouni Malinen <j@w1.fi>
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License version 2 as
   7  * published by the Free Software Foundation.
   8  *
   9  * Alternatively, this software may be distributed under the terms of BSD
  10  * license.
  11  *
  12  * See README and COPYING for more details.
  13  */
  14
  15 #ifndef WPA_SUPPLICANT_I_H
  16 #define WPA_SUPPLICANT_I_H
  17
  18 #include "utils/list.h"
  19 #include "common/defs.h"
  20
  21 extern const char *wpa_supplicant_version;
  22 extern const char *wpa_supplicant_license;
  23 #ifndef CONFIG_NO_STDOUT_DEBUG
  24 extern const char *wpa_supplicant_full_license1;
  25 extern const char *wpa_supplicant_full_license2;
  26 extern const char *wpa_supplicant_full_license3;
  27 extern const char *wpa_supplicant_full_license4;
  28 extern const char *wpa_supplicant_full_license5;
  29 #endif /* CONFIG_NO_STDOUT_DEBUG */
  30
  31 struct wpa_sm;
  32 struct wpa_supplicant;
  33 struct ibss_rsn;
  34 struct scan_info;
  35 struct wpa_bss;
  36 struct wpa_scan_results;
  37
  38 /*
  39  * Forward declarations of private structures used within the ctrl_iface
  40  * backends. Other parts of wpa_supplicant do not have access to data stored in
  41  * these structures.
  42  */
  43 struct ctrl_iface_priv;
  44 struct ctrl_iface_global_priv;
  45 struct wpas_dbus_priv;
  46
  47 /**
  48  * struct wpa_interface - Parameters for wpa_supplicant_add_iface()
  49  */
  50 struct wpa_interface {
  51         /**
  52          * confname - Configuration name (file or profile) name
  53          *
  54          * This can also be %NULL when a configuration file is not used. In
  55          * that case, ctrl_interface must be set to allow the interface to be
  56          * configured.
  57          */
  58         const char *confname;
  59
  60         /**
  61          * ctrl_interface - Control interface parameter
  62          *
  63          * If a configuration file is not used, this variable can be used to
  64          * set the ctrl_interface parameter that would have otherwise been read
  65          * from the configuration file. If both confname and ctrl_interface are
  66          * set, ctrl_interface is used to override the value from configuration
  67          * file.
  68          */
  69         const char *ctrl_interface;
  70
  71         /**
  72          * driver - Driver interface name, or %NULL to use the default driver
  73          */
  74         const char *driver;
  75
  76         /**
  77          * driver_param - Driver interface parameters
  78          *
  79          * If a configuration file is not used, this variable can be used to
  80          * set the driver_param parameters that would have otherwise been read
  81          * from the configuration file. If both confname and driver_param are
  82          * set, driver_param is used to override the value from configuration
  83          * file.
  84          */
  85         const char *driver_param;
  86
  87         /**
  88          * ifname - Interface name
  89          */
  90         const char *ifname;
  91
  92         /**
  93          * bridge_ifname - Optional bridge interface name
  94          *
  95          * If the driver interface (ifname) is included in a Linux bridge
  96          * device, the bridge interface may need to be used for receiving EAPOL
  97          * frames. This can be enabled by setting this variable to enable
  98          * receiving of EAPOL frames from an additional interface.
  99          */
 100         const char *bridge_ifname;
 101 };
 102
 103 /**
 104  * struct wpa_params - Parameters for wpa_supplicant_init()
 105  */
 106 struct wpa_params {
 107         /**
 108          * daemonize - Run %wpa_supplicant in the background
 109          */
 110         int daemonize;
 111
 112         /**
 113          * wait_for_monitor - Wait for a monitor program before starting
 114          */
 115         int wait_for_monitor;
 116
 117         /**
 118          * pid_file - Path to a PID (process ID) file
 119          *
 120          * If this and daemonize are set, process ID of the background process
 121          * will be written to the specified file.
 122          */
 123         char *pid_file;
 124
 125         /**
 126          * wpa_debug_level - Debugging verbosity level (e.g., MSG_INFO)
 127          */
 128         int wpa_debug_level;
 129
 130         /**
 131          * wpa_debug_show_keys - Whether keying material is included in debug
 132          *
 133          * This parameter can be used to allow keying material to be included
 134          * in debug messages. This is a security risk and this option should
 135          * not be enabled in normal configuration. If needed during
 136          * development or while troubleshooting, this option can provide more
 137          * details for figuring out what is happening.
 138          */
 139         int wpa_debug_show_keys;
 140
 141         /**
 142          * wpa_debug_timestamp - Whether to include timestamp in debug messages
 143          */
 144         int wpa_debug_timestamp;
 145
 146         /**
 147          * ctrl_interface - Global ctrl_iface path/parameter
 148          */
 149         char *ctrl_interface;
 150
 151         /**
 152          * dbus_ctrl_interface - Enable the DBus control interface
 153          */
 154         int dbus_ctrl_interface;
 155
 156         /**
 157          * wpa_debug_file_path - Path of debug file or %NULL to use stdout
 158          */
 159         const char *wpa_debug_file_path;
 160
 161         /**
 162          * wpa_debug_syslog - Enable log output through syslog
 163          */
 164         int wpa_debug_syslog;
 165
 166         /**
 167          * override_driver - Optional driver parameter override
 168          *
 169          * This parameter can be used to override the driver parameter in
 170          * dynamic interface addition to force a specific driver wrapper to be
 171          * used instead.
 172          */
 173         char *override_driver;
 174
 175         /**
 176          * override_ctrl_interface - Optional ctrl_interface override
 177          *
 178          * This parameter can be used to override the ctrl_interface parameter
 179          * in dynamic interface addition to force a control interface to be
 180          * created.
 181          */
 182         char *override_ctrl_interface;
 183 };
 184
 185 /**
 186  * struct wpa_global - Internal, global data for all %wpa_supplicant interfaces
 187  *
 188  * This structure is initialized by calling wpa_supplicant_init() when starting
 189  * %wpa_supplicant.
 190  */
 191 struct wpa_global {
 192         struct wpa_supplicant *ifaces;
 193         struct wpa_params params;
 194         struct ctrl_iface_global_priv *ctrl_iface;
 195         struct wpas_dbus_priv *dbus;
 196         void **drv_priv;
 197         size_t drv_count;
 198         struct os_time suspend_time;
 199 };
 200
 201
 202 struct wpa_client_mlme {
 203 #ifdef CONFIG_CLIENT_MLME
 204         enum {
 205                 IEEE80211_DISABLED, IEEE80211_AUTHENTICATE,
 206                 IEEE80211_ASSOCIATE, IEEE80211_ASSOCIATED,
 207                 IEEE80211_IBSS_SEARCH, IEEE80211_IBSS_JOINED
 208         } state;
 209         u8 prev_bssid[ETH_ALEN];
 210         u8 ssid[32];
 211         size_t ssid_len;
 212         u16 aid;
 213         u16 ap_capab, capab;
 214         u8 *extra_ie; /* to be added to the end of AssocReq */
 215         size_t extra_ie_len;
 216         u8 *extra_probe_ie; /* to be added to the end of ProbeReq */
 217         size_t extra_probe_ie_len;
 218         enum wpa_key_mgmt key_mgmt;
 219
 220         /* The last AssocReq/Resp IEs */
 221         u8 *assocreq_ies, *assocresp_ies;
 222         size_t assocreq_ies_len, assocresp_ies_len;
 223
 224         int auth_tries, assoc_tries;
 225
 226         unsigned int ssid_set:1;
 227         unsigned int bssid_set:1;
 228         unsigned int prev_bssid_set:1;
 229         unsigned int authenticated:1;
 230         unsigned int associated:1;
 231         unsigned int probereq_poll:1;
 232         unsigned int use_protection:1;
 233         unsigned int create_ibss:1;
 234         unsigned int mixed_cell:1;
 235         unsigned int wmm_enabled:1;
 236
 237         struct os_time last_probe;
 238
 239         unsigned int auth_algs; /* bitfield of allowed auth algs
 240                                  * (WPA_AUTH_ALG_*) */
 241         int auth_alg; /* currently used IEEE 802.11 authentication algorithm */
 242         int auth_transaction;
 243
 244         struct os_time ibss_join_req;
 245         u8 *probe_resp; /* ProbeResp template for IBSS */
 246         size_t probe_resp_len;
 247         u32 supp_rates_bits;
 248
 249         int wmm_last_param_set;
 250
 251         int sta_scanning;
 252         int scan_hw_mode_idx;
 253         int scan_channel_idx;
 254         enum { SCAN_SET_CHANNEL, SCAN_SEND_PROBE } scan_state;
 255         struct os_time last_scan_completed;
 256         int scan_oper_channel;
 257         int scan_oper_freq;
 258         int scan_oper_phymode;
 259         u8 scan_ssid[32];
 260         size_t scan_ssid_len;
 261         int scan_skip_11b;
 262         int *scan_freqs;
 263
 264         struct ieee80211_sta_bss *sta_bss_list;
 265 #define STA_HASH_SIZE 256
 266 #define STA_HASH(sta) (sta[5])
 267         struct ieee80211_sta_bss *sta_bss_hash[STA_HASH_SIZE];
 268
 269         int cts_protect_erp_frames;
 270
 271         enum hostapd_hw_mode phymode; /* current mode */
 272         struct hostapd_hw_modes *modes;
 273         size_t num_modes;
 274         unsigned int hw_modes; /* bitfield of allowed hardware modes;
 275                                 * (1 << HOSTAPD_MODE_*) */
 276         int num_curr_rates;
 277         int *curr_rates;
 278         int freq; /* The current frequency in MHz */
 279         int channel; /* The current IEEE 802.11 channel number */
 280
 281 #ifdef CONFIG_IEEE80211R
 282         u8 current_md[6];
 283         u8 *ft_ies;
 284         size_t ft_ies_len;
 285 #endif /* CONFIG_IEEE80211R */
 286
 287         void (*public_action_cb)(void *ctx, const u8 *buf, size_t len,
 288                                  int freq);
 289         void *public_action_cb_ctx;
 290
 291 #else /* CONFIG_CLIENT_MLME */
 292         int dummy; /* to keep MSVC happy */
 293 #endif /* CONFIG_CLIENT_MLME */
 294 };
 295
 296 /**
 297  * struct wpa_supplicant - Internal data for wpa_supplicant interface
 298  *
 299  * This structure contains the internal data for core wpa_supplicant code. This
 300  * should be only used directly from the core code. However, a pointer to this
 301  * data is used from other files as an arbitrary context pointer in calls to
 302  * core functions.
 303  */
 304 struct wpa_supplicant {
 305         struct wpa_global *global;
 306         struct wpa_supplicant *next;
 307         struct l2_packet_data *l2;
 308         struct l2_packet_data *l2_br;
 309         unsigned char own_addr[ETH_ALEN];
 310         char ifname[100];
 311 #ifdef CONFIG_CTRL_IFACE_DBUS
 312         char *dbus_path;
 313 #endif /* CONFIG_CTRL_IFACE_DBUS */
 314 #ifdef CONFIG_CTRL_IFACE_DBUS_NEW
 315         char *dbus_new_path;
 316 #endif /* CONFIG_CTRL_IFACE_DBUS_NEW */
 317         char bridge_ifname[16];
 318
 319         char *confname;
 320         struct wpa_config *conf;
 321         int countermeasures;
 322         os_time_t last_michael_mic_error;
 323         u8 bssid[ETH_ALEN];
 324         u8 pending_bssid[ETH_ALEN]; /* If wpa_state == WPA_ASSOCIATING, this
 325                                      * field contains the targer BSSID. */
 326         int reassociate; /* reassociation requested */
 327         int disconnected; /* all connections disabled; i.e., do no reassociate
 328                            * before this has been cleared */
 329         struct wpa_ssid *current_ssid;
 330         struct wpa_bss *current_bss;
 331         int ap_ies_from_associnfo;
 332         unsigned int assoc_freq;
 333
 334         /* Selected configuration (based on Beacon/ProbeResp WPA IE) */
 335         int pairwise_cipher;
 336         int group_cipher;
 337         int key_mgmt;
 338         int mgmt_group_cipher;
 339
 340         void *drv_priv; /* private data used by driver_ops */
 341         void *global_drv_priv;
 342
 343         struct wpa_ssid *prev_scan_ssid; /* previously scanned SSID;
 344                                           * NULL = not yet initialized (start
 345                                           * with wildcard SSID)
 346                                           * WILDCARD_SSID_SCAN = wildcard
 347                                           * SSID was used in the previous scan
 348                                           */
 349 #define WILDCARD_SSID_SCAN ((struct wpa_ssid *) 1)
 350
 351         void (*scan_res_handler)(struct wpa_supplicant *wpa_s,
 352                                  struct wpa_scan_results *scan_res);
 353         struct dl_list bss; /* struct wpa_bss::list */
 354         struct dl_list bss_id; /* struct wpa_bss::list_id */
 355         size_t num_bss;
 356         unsigned int bss_update_idx;
 357         unsigned int bss_next_id;
 358
 359         struct wpa_driver_ops *driver;
 360         int interface_removed; /* whether the network interface has been
 361                                 * removed */
 362         struct wpa_sm *wpa;
 363         struct eapol_sm *eapol;
 364
 365         struct ctrl_iface_priv *ctrl_iface;
 366
 367         enum wpa_states wpa_state;
 368         int scanning;
 369         int new_connection;
 370         int reassociated_connection;
 371
 372         int eapol_received; /* number of EAPOL packets received after the
 373                              * previous association event */
 374
 375         struct scard_data *scard;
 376
 377         unsigned char last_eapol_src[ETH_ALEN];
 378
 379         int keys_cleared;
 380
 381         struct wpa_blacklist *blacklist;
 382
 383         int scan_req; /* manual scan request; this forces a scan even if there
 384                        * are no enabled networks in the configuration */
 385         int scan_runs; /* number of scan runs since WPS was started */
 386
 387         struct wpa_client_mlme mlme;
 388         unsigned int drv_flags;
 389         int max_scan_ssids;
 390         unsigned int max_remain_on_chan;
 391
 392         int pending_mic_error_report;
 393         int pending_mic_error_pairwise;
 394         int mic_errors_seen; /* Michael MIC errors with the current PTK */
 395
 396         struct wps_context *wps;
 397         int wps_success; /* WPS success event received */
 398         struct wps_er *wps_er;
 399         int blacklist_cleared;
 400
 401         struct wpabuf *pending_eapol_rx;
 402         struct os_time pending_eapol_rx_time;
 403         u8 pending_eapol_rx_src[ETH_ALEN];
 404
 405         struct ibss_rsn *ibss_rsn;
 406
 407 #ifdef CONFIG_SME
 408         struct {
 409                 u8 ssid[32];
 410                 size_t ssid_len;
 411                 int freq;
 412                 u8 assoc_req_ie[80];
 413                 size_t assoc_req_ie_len;
 414                 int mfp;
 415                 int ft_used;
 416                 u8 mobility_domain[2];
 417                 u8 *ft_ies;
 418                 size_t ft_ies_len;
 419                 u8 prev_bssid[ETH_ALEN];
 420                 int prev_bssid_set;
 421                 int auth_alg;
 422         } sme;
 423 #endif /* CONFIG_SME */
 424
 425 #ifdef CONFIG_AP
 426         struct hostapd_iface *ap_iface;
 427         void (*ap_configured_cb)(void *ctx, void *data);
 428         void *ap_configured_cb_ctx;
 429         void *ap_configured_cb_data;
 430 #endif /* CONFIG_AP */
 431
 432         struct wpa_ssid *bgscan_ssid;
 433         const struct bgscan_ops *bgscan;
 434         void *bgscan_priv;
 435
 436         int connect_without_scan;
 437
 438         int after_wps;
 439         unsigned int wps_freq;
 440 };
 441
 442
 443 /* wpa_supplicant.c */
 444 int wpa_set_wep_keys(struct wpa_supplicant *wpa_s, struct wpa_ssid *ssid);
 445
 446 int wpa_supplicant_reload_configuration(struct wpa_supplicant *wpa_s);
 447
 448 const char * wpa_supplicant_state_txt(enum wpa_states state);
 449 int wpa_supplicant_driver_init(struct wpa_supplicant *wpa_s);
 450 int wpa_supplicant_set_suites(struct wpa_supplicant *wpa_s,
 451                               struct wpa_bss *bss, struct wpa_ssid *ssid,
 452                               u8 *wpa_ie, size_t *wpa_ie_len);
 453 void wpa_supplicant_associate(struct wpa_supplicant *wpa_s,
 454                               struct wpa_bss *bss,
 455                               struct wpa_ssid *ssid);
 456 void wpa_supplicant_set_non_wpa_policy(struct wpa_supplicant *wpa_s,
 457                                        struct wpa_ssid *ssid);
 458 void wpa_supplicant_initiate_eapol(struct wpa_supplicant *wpa_s);
 459 void wpa_clear_keys(struct wpa_supplicant *wpa_s, const u8 *addr);
 460 void wpa_supplicant_req_auth_timeout(struct wpa_supplicant *wpa_s,
 461                                      int sec, int usec);
 462 void wpa_supplicant_set_state(struct wpa_supplicant *wpa_s,
 463                               enum wpa_states state);
 464 struct wpa_ssid * wpa_supplicant_get_ssid(struct wpa_supplicant *wpa_s);
 465 void wpa_supplicant_cancel_auth_timeout(struct wpa_supplicant *wpa_s);
 466 void wpa_supplicant_deauthenticate(struct wpa_supplicant *wpa_s,
 467                                    int reason_code);
 468 void wpa_supplicant_disassociate(struct wpa_supplicant *wpa_s,
 469                                  int reason_code);
 470
 471 void wpa_supplicant_enable_network(struct wpa_supplicant *wpa_s,
 472                                    struct wpa_ssid *ssid);
 473 void wpa_supplicant_disable_network(struct wpa_supplicant *wpa_s,
 474                                     struct wpa_ssid *ssid);
 475 void wpa_supplicant_select_network(struct wpa_supplicant *wpa_s,
 476                                    struct wpa_ssid *ssid);
 477 int wpa_supplicant_set_ap_scan(struct wpa_supplicant *wpa_s,
 478                                int ap_scan);
 479 int wpa_supplicant_set_debug_params(struct wpa_global *global,
 480                                     int debug_level, int debug_timestamp,
 481                                     int debug_show_keys);
 482
 483 void wpa_show_license(void);
 484
 485 struct wpa_supplicant * wpa_supplicant_add_iface(struct wpa_global *global,
 486                                                  struct wpa_interface *iface);
 487 int wpa_supplicant_remove_iface(struct wpa_global *global,
 488                                 struct wpa_supplicant *wpa_s);
 489 struct wpa_supplicant * wpa_supplicant_get_iface(struct wpa_global *global,
 490                                                  const char *ifname);
 491 struct wpa_global * wpa_supplicant_init(struct wpa_params *params);
 492 int wpa_supplicant_run(struct wpa_global *global);
 493 void wpa_supplicant_deinit(struct wpa_global *global);
 494
 495 int wpa_supplicant_scard_init(struct wpa_supplicant *wpa_s,
 496                               struct wpa_ssid *ssid);
 497 void wpa_supplicant_terminate_proc(struct wpa_global *global);
 498 void wpa_supplicant_rx_eapol(void *ctx, const u8 *src_addr,
 499                              const u8 *buf, size_t len);
 500 enum wpa_key_mgmt key_mgmt2driver(int key_mgmt);
 501 enum wpa_cipher cipher_suite2driver(int cipher);
 502
 503 /* events.c */
 504 void wpa_supplicant_mark_disassoc(struct wpa_supplicant *wpa_s);
 505 void wpa_supplicant_connect(struct wpa_supplicant *wpa_s,
 506                             struct wpa_bss *selected,
 507                             struct wpa_ssid *ssid);
 508
 509 /* eap_register.c */
 510 int eap_register_methods(void);
 511
 512 #endif /* WPA_SUPPLICANT_I_H */