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 struct p2p_srv_bonjour {
 186         struct dl_list list;
 187         struct wpabuf *query;
 188         struct wpabuf *resp;
 189 };
 190
 191 struct p2p_srv_upnp {
 192         struct dl_list list;
 193         u8 version;
 194         char *service;
 195 };
 196
 197 /**
 198  * struct wpa_global - Internal, global data for all %wpa_supplicant interfaces
 199  *
 200  * This structure is initialized by calling wpa_supplicant_init() when starting
 201  * %wpa_supplicant.
 202  */
 203 struct wpa_global {
 204         struct wpa_supplicant *ifaces;
 205         struct wpa_params params;
 206         struct ctrl_iface_global_priv *ctrl_iface;
 207         struct wpas_dbus_priv *dbus;
 208         void **drv_priv;
 209         size_t drv_count;
 210         struct os_time suspend_time;
 211         struct p2p_data *p2p;
 212         struct wpa_supplicant *p2p_group_formation;
 213         u8 p2p_dev_addr[ETH_ALEN];
 214         struct dl_list p2p_srv_bonjour; /* struct p2p_srv_bonjour */
 215         struct dl_list p2p_srv_upnp; /* struct p2p_srv_upnp */
 216         int p2p_disabled;
 217         int cross_connection;
 218 };
 219
 220
 221 struct wpa_client_mlme {
 222 #ifdef CONFIG_CLIENT_MLME
 223         enum {
 224                 IEEE80211_DISABLED, IEEE80211_AUTHENTICATE,
 225                 IEEE80211_ASSOCIATE, IEEE80211_ASSOCIATED,
 226                 IEEE80211_IBSS_SEARCH, IEEE80211_IBSS_JOINED
 227         } state;
 228         u8 prev_bssid[ETH_ALEN];
 229         u8 ssid[32];
 230         size_t ssid_len;
 231         u16 aid;
 232         u16 ap_capab, capab;
 233         u8 *extra_ie; /* to be added to the end of AssocReq */
 234         size_t extra_ie_len;
 235         u8 *extra_probe_ie; /* to be added to the end of ProbeReq */
 236         size_t extra_probe_ie_len;
 237         enum wpa_key_mgmt key_mgmt;
 238
 239         /* The last AssocReq/Resp IEs */
 240         u8 *assocreq_ies, *assocresp_ies;
 241         size_t assocreq_ies_len, assocresp_ies_len;
 242
 243         int auth_tries, assoc_tries;
 244
 245         unsigned int ssid_set:1;
 246         unsigned int bssid_set:1;
 247         unsigned int prev_bssid_set:1;
 248         unsigned int authenticated:1;
 249         unsigned int associated:1;
 250         unsigned int probereq_poll:1;
 251         unsigned int use_protection:1;
 252         unsigned int create_ibss:1;
 253         unsigned int mixed_cell:1;
 254         unsigned int wmm_enabled:1;
 255
 256         struct os_time last_probe;
 257
 258         unsigned int auth_algs; /* bitfield of allowed auth algs
 259                                  * (WPA_AUTH_ALG_*) */
 260         int auth_alg; /* currently used IEEE 802.11 authentication algorithm */
 261         int auth_transaction;
 262
 263         struct os_time ibss_join_req;
 264         u8 *probe_resp; /* ProbeResp template for IBSS */
 265         size_t probe_resp_len;
 266         u32 supp_rates_bits;
 267
 268         int wmm_last_param_set;
 269
 270         int sta_scanning;
 271         int scan_hw_mode_idx;
 272         int scan_channel_idx;
 273         enum { SCAN_SET_CHANNEL, SCAN_SEND_PROBE } scan_state;
 274         struct os_time last_scan_completed;
 275         int scan_oper_channel;
 276         int scan_oper_freq;
 277         int scan_oper_phymode;
 278         u8 scan_ssid[32];
 279         size_t scan_ssid_len;
 280         int scan_skip_11b;
 281         int *scan_freqs;
 282
 283         struct ieee80211_sta_bss *sta_bss_list;
 284 #define STA_HASH_SIZE 256
 285 #define STA_HASH(sta) (sta[5])
 286         struct ieee80211_sta_bss *sta_bss_hash[STA_HASH_SIZE];
 287
 288         int cts_protect_erp_frames;
 289
 290         enum hostapd_hw_mode phymode; /* current mode */
 291         struct hostapd_hw_modes *modes;
 292         size_t num_modes;
 293         unsigned int hw_modes; /* bitfield of allowed hardware modes;
 294                                 * (1 << HOSTAPD_MODE_*) */
 295         int num_curr_rates;
 296         int *curr_rates;
 297         int freq; /* The current frequency in MHz */
 298         int channel; /* The current IEEE 802.11 channel number */
 299
 300 #ifdef CONFIG_IEEE80211R
 301         u8 current_md[6];
 302         u8 *ft_ies;
 303         size_t ft_ies_len;
 304 #endif /* CONFIG_IEEE80211R */
 305
 306         void (*public_action_cb)(void *ctx, const u8 *buf, size_t len,
 307                                  int freq);
 308         void *public_action_cb_ctx;
 309
 310 #else /* CONFIG_CLIENT_MLME */
 311         int dummy; /* to keep MSVC happy */
 312 #endif /* CONFIG_CLIENT_MLME */
 313 };
 314
 315 /**
 316  * struct wpa_supplicant - Internal data for wpa_supplicant interface
 317  *
 318  * This structure contains the internal data for core wpa_supplicant code. This
 319  * should be only used directly from the core code. However, a pointer to this
 320  * data is used from other files as an arbitrary context pointer in calls to
 321  * core functions.
 322  */
 323 struct wpa_supplicant {
 324         struct wpa_global *global;
 325         struct wpa_supplicant *parent;
 326         struct wpa_supplicant *next;
 327         struct l2_packet_data *l2;
 328         struct l2_packet_data *l2_br;
 329         unsigned char own_addr[ETH_ALEN];
 330         char ifname[100];
 331 #ifdef CONFIG_CTRL_IFACE_DBUS
 332         char *dbus_path;
 333 #endif /* CONFIG_CTRL_IFACE_DBUS */
 334 #ifdef CONFIG_CTRL_IFACE_DBUS_NEW
 335         char *dbus_new_path;
 336 #endif /* CONFIG_CTRL_IFACE_DBUS_NEW */
 337         char bridge_ifname[16];
 338
 339         char *confname;
 340         struct wpa_config *conf;
 341         int countermeasures;
 342         os_time_t last_michael_mic_error;
 343         u8 bssid[ETH_ALEN];
 344         u8 pending_bssid[ETH_ALEN]; /* If wpa_state == WPA_ASSOCIATING, this
 345                                      * field contains the targer BSSID. */
 346         int reassociate; /* reassociation requested */
 347         int disconnected; /* all connections disabled; i.e., do no reassociate
 348                            * before this has been cleared */
 349         struct wpa_ssid *current_ssid;
 350         struct wpa_bss *current_bss;
 351         int ap_ies_from_associnfo;
 352         unsigned int assoc_freq;
 353
 354         /* Selected configuration (based on Beacon/ProbeResp WPA IE) */
 355         int pairwise_cipher;
 356         int group_cipher;
 357         int key_mgmt;
 358         int mgmt_group_cipher;
 359
 360         void *drv_priv; /* private data used by driver_ops */
 361         void *global_drv_priv;
 362
 363         struct wpa_ssid *prev_scan_ssid; /* previously scanned SSID;
 364                                           * NULL = not yet initialized (start
 365                                           * with wildcard SSID)
 366                                           * WILDCARD_SSID_SCAN = wildcard
 367                                           * SSID was used in the previous scan
 368                                           */
 369 #define WILDCARD_SSID_SCAN ((struct wpa_ssid *) 1)
 370
 371         void (*scan_res_handler)(struct wpa_supplicant *wpa_s,
 372                                  struct wpa_scan_results *scan_res);
 373         struct dl_list bss; /* struct wpa_bss::list */
 374         struct dl_list bss_id; /* struct wpa_bss::list_id */
 375         size_t num_bss;
 376         unsigned int bss_update_idx;
 377         unsigned int bss_next_id;
 378
 379         struct wpa_driver_ops *driver;
 380         int interface_removed; /* whether the network interface has been
 381                                 * removed */
 382         struct wpa_sm *wpa;
 383         struct eapol_sm *eapol;
 384
 385         struct ctrl_iface_priv *ctrl_iface;
 386
 387         enum wpa_states wpa_state;
 388         int scanning;
 389         int new_connection;
 390         int reassociated_connection;
 391
 392         int eapol_received; /* number of EAPOL packets received after the
 393                              * previous association event */
 394
 395         struct scard_data *scard;
 396
 397         unsigned char last_eapol_src[ETH_ALEN];
 398
 399         int keys_cleared;
 400
 401         struct wpa_blacklist *blacklist;
 402
 403         int scan_req; /* manual scan request; this forces a scan even if there
 404                        * are no enabled networks in the configuration */
 405         int scan_runs; /* number of scan runs since WPS was started */
 406
 407         struct wpa_client_mlme mlme;
 408         unsigned int drv_flags;
 409         int max_scan_ssids;
 410         unsigned int max_remain_on_chan;
 411
 412         int pending_mic_error_report;
 413         int pending_mic_error_pairwise;
 414         int mic_errors_seen; /* Michael MIC errors with the current PTK */
 415
 416         struct wps_context *wps;
 417         int wps_success; /* WPS success event received */
 418         struct wps_er *wps_er;
 419         int blacklist_cleared;
 420
 421         struct wpabuf *pending_eapol_rx;
 422         struct os_time pending_eapol_rx_time;
 423         u8 pending_eapol_rx_src[ETH_ALEN];
 424
 425         struct ibss_rsn *ibss_rsn;
 426
 427 #ifdef CONFIG_SME
 428         struct {
 429                 u8 ssid[32];
 430                 size_t ssid_len;
 431                 int freq;
 432                 u8 assoc_req_ie[200];
 433                 size_t assoc_req_ie_len;
 434                 int mfp;
 435                 int ft_used;
 436                 u8 mobility_domain[2];
 437                 u8 *ft_ies;
 438                 size_t ft_ies_len;
 439                 u8 prev_bssid[ETH_ALEN];
 440                 int prev_bssid_set;
 441                 int auth_alg;
 442         } sme;
 443 #endif /* CONFIG_SME */
 444
 445 #ifdef CONFIG_AP
 446         struct hostapd_iface *ap_iface;
 447         void (*ap_configured_cb)(void *ctx, void *data);
 448         void *ap_configured_cb_ctx;
 449         void *ap_configured_cb_data;
 450 #endif /* CONFIG_AP */
 451
 452 #ifdef CONFIG_P2P
 453         struct p2p_go_neg_results *go_params;
 454         int create_p2p_iface;
 455         u8 pending_interface_addr[ETH_ALEN];
 456         char pending_interface_name[IFNAMSIZ];
 457         int pending_interface_type;
 458         int p2p_group_idx;
 459         unsigned int off_channel_freq;
 460         struct wpabuf *pending_action_tx;
 461         u8 pending_action_src[ETH_ALEN];
 462         u8 pending_action_dst[ETH_ALEN];
 463         u8 pending_action_bssid[ETH_ALEN];
 464         unsigned int pending_action_freq;
 465         int pending_action_without_roc;
 466         unsigned int pending_listen_freq;
 467         unsigned int pending_listen_duration;
 468         enum {
 469                 NOT_P2P_GROUP_INTERFACE,
 470                 P2P_GROUP_INTERFACE_PENDING,
 471                 P2P_GROUP_INTERFACE_GO,
 472                 P2P_GROUP_INTERFACE_CLIENT
 473         } p2p_group_interface;
 474         struct p2p_group *p2p_group;
 475         int p2p_long_listen;
 476         char p2p_pin[10];
 477         int p2p_wps_method;
 478         u8 p2p_auth_invite[ETH_ALEN];
 479         int p2p_sd_over_ctrl_iface;
 480         int p2p_in_provisioning;
 481         int pending_invite_ssid_id;
 482         int show_group_started;
 483         u8 go_dev_addr[ETH_ALEN];
 484         int pending_pd_before_join;
 485         u8 pending_join_iface_addr[ETH_ALEN];
 486         u8 pending_join_dev_addr[ETH_ALEN];
 487         int pending_join_wps_method;
 488         unsigned int roc_waiting_drv_freq;
 489         int force_long_sd;
 490
 491         /*
 492          * Whether cross connection is disallowed by the AP to which this
 493          * interface is associated (only valid if there is an association).
 494          */
 495         int cross_connect_disallowed;
 496
 497         /*
 498          * Whether this P2P group is configured to use cross connection (only
 499          * valid if this is P2P GO interface). The actual cross connect packet
 500          * forwarding may not be configured depending on the uplink status.
 501          */
 502         int cross_connect_enabled;
 503
 504         /* Whether cross connection forwarding is in use at the moment. */
 505         int cross_connect_in_use;
 506
 507         /*
 508          * Uplink interface name for cross connection
 509          */
 510         char cross_connect_uplink[100];
 511 #endif /* CONFIG_P2P */
 512
 513         struct wpa_ssid *bgscan_ssid;
 514         const struct bgscan_ops *bgscan;
 515         void *bgscan_priv;
 516
 517         int connect_without_scan;
 518
 519         int after_wps;
 520         unsigned int wps_freq;
 521         int wps_fragment_size;
 522 };
 523
 524
 525 /* wpa_supplicant.c */
 526 int wpa_set_wep_keys(struct wpa_supplicant *wpa_s, struct wpa_ssid *ssid);
 527
 528 int wpa_supplicant_reload_configuration(struct wpa_supplicant *wpa_s);
 529
 530 const char * wpa_supplicant_state_txt(enum wpa_states state);
 531 int wpa_supplicant_driver_init(struct wpa_supplicant *wpa_s);
 532 int wpa_supplicant_set_suites(struct wpa_supplicant *wpa_s,
 533                               struct wpa_bss *bss, struct wpa_ssid *ssid,
 534                               u8 *wpa_ie, size_t *wpa_ie_len);
 535 void wpa_supplicant_associate(struct wpa_supplicant *wpa_s,
 536                               struct wpa_bss *bss,
 537                               struct wpa_ssid *ssid);
 538 void wpa_supplicant_set_non_wpa_policy(struct wpa_supplicant *wpa_s,
 539                                        struct wpa_ssid *ssid);
 540 void wpa_supplicant_initiate_eapol(struct wpa_supplicant *wpa_s);
 541 void wpa_clear_keys(struct wpa_supplicant *wpa_s, const u8 *addr);
 542 void wpa_supplicant_req_auth_timeout(struct wpa_supplicant *wpa_s,
 543                                      int sec, int usec);
 544 void wpa_supplicant_set_state(struct wpa_supplicant *wpa_s,
 545                               enum wpa_states state);
 546 struct wpa_ssid * wpa_supplicant_get_ssid(struct wpa_supplicant *wpa_s);
 547 void wpa_supplicant_cancel_auth_timeout(struct wpa_supplicant *wpa_s);
 548 void wpa_supplicant_deauthenticate(struct wpa_supplicant *wpa_s,
 549                                    int reason_code);
 550 void wpa_supplicant_disassociate(struct wpa_supplicant *wpa_s,
 551                                  int reason_code);
 552
 553 void wpa_supplicant_enable_network(struct wpa_supplicant *wpa_s,
 554                                    struct wpa_ssid *ssid);
 555 void wpa_supplicant_disable_network(struct wpa_supplicant *wpa_s,
 556                                     struct wpa_ssid *ssid);
 557 void wpa_supplicant_select_network(struct wpa_supplicant *wpa_s,
 558                                    struct wpa_ssid *ssid);
 559 int wpa_supplicant_set_ap_scan(struct wpa_supplicant *wpa_s,
 560                                int ap_scan);
 561 int wpa_supplicant_set_debug_params(struct wpa_global *global,
 562                                     int debug_level, int debug_timestamp,
 563                                     int debug_show_keys);
 564
 565 void wpa_show_license(void);
 566
 567 struct wpa_supplicant * wpa_supplicant_add_iface(struct wpa_global *global,
 568                                                  struct wpa_interface *iface);
 569 int wpa_supplicant_remove_iface(struct wpa_global *global,
 570                                 struct wpa_supplicant *wpa_s);
 571 struct wpa_supplicant * wpa_supplicant_get_iface(struct wpa_global *global,
 572                                                  const char *ifname);
 573 struct wpa_global * wpa_supplicant_init(struct wpa_params *params);
 574 int wpa_supplicant_run(struct wpa_global *global);
 575 void wpa_supplicant_deinit(struct wpa_global *global);
 576
 577 int wpa_supplicant_scard_init(struct wpa_supplicant *wpa_s,
 578                               struct wpa_ssid *ssid);
 579 void wpa_supplicant_terminate_proc(struct wpa_global *global);
 580 void wpa_supplicant_rx_eapol(void *ctx, const u8 *src_addr,
 581                              const u8 *buf, size_t len);
 582 enum wpa_key_mgmt key_mgmt2driver(int key_mgmt);
 583 enum wpa_cipher cipher_suite2driver(int cipher);
 584 void wpa_supplicant_update_config(struct wpa_supplicant *wpa_s);
 585 void wpa_supplicant_clear_status(struct wpa_supplicant *wpa_s);
 586
 587 /* events.c */
 588 void wpa_supplicant_mark_disassoc(struct wpa_supplicant *wpa_s);
 589 void wpa_supplicant_connect(struct wpa_supplicant *wpa_s,
 590                             struct wpa_bss *selected,
 591                             struct wpa_ssid *ssid);
 592
 593 /* eap_register.c */
 594 int eap_register_methods(void);
 595
 596 #endif /* WPA_SUPPLICANT_I_H */