hostapd
wps_i.h
1 /*
2  * Wi-Fi Protected Setup - internal definitions
3  * Copyright (c) 2008-2012, Jouni Malinen <j@w1.fi>
4  *
5  * This software may be distributed under the terms of the BSD license.
6  * See README for more details.
7  */
8 
9 #ifndef WPS_I_H
10 #define WPS_I_H
11 
12 #include "wps.h"
13 #include "wps_attr_parse.h"
14 
15 struct wps_nfc_pw_token;
16 
23 struct wps_data {
27  struct wps_context *wps;
28 
32  int registrar;
33 
37  int er;
38 
39  enum {
40  /* Enrollee states */
41  SEND_M1, RECV_M2, SEND_M3, RECV_M4, SEND_M5, RECV_M6, SEND_M7,
42  RECV_M8, RECEIVED_M2D, WPS_MSG_DONE, RECV_ACK, WPS_FINISHED,
43  SEND_WSC_NACK,
44 
45  /* Registrar states */
46  RECV_M1, SEND_M2, RECV_M3, SEND_M4, RECV_M5, SEND_M6,
47  RECV_M7, SEND_M8, RECV_DONE, SEND_M2D, RECV_M2D_ACK
48  } state;
49 
50  u8 uuid_e[WPS_UUID_LEN];
51  u8 uuid_r[WPS_UUID_LEN];
52  u8 mac_addr_e[ETH_ALEN];
53  u8 nonce_e[WPS_NONCE_LEN];
54  u8 nonce_r[WPS_NONCE_LEN];
55  u8 psk1[WPS_PSK_LEN];
56  u8 psk2[WPS_PSK_LEN];
57  u8 snonce[2 * WPS_SECRET_NONCE_LEN];
58  u8 peer_hash1[WPS_HASH_LEN];
59  u8 peer_hash2[WPS_HASH_LEN];
60 
61  struct wpabuf *dh_privkey;
62  struct wpabuf *dh_pubkey_e;
63  struct wpabuf *dh_pubkey_r;
64  u8 authkey[WPS_AUTHKEY_LEN];
65  u8 keywrapkey[WPS_KEYWRAPKEY_LEN];
66  u8 emsk[WPS_EMSK_LEN];
67 
68  struct wpabuf *last_msg;
69 
70  u8 *dev_password;
71  size_t dev_password_len;
72  u16 dev_pw_id;
73  int pbc;
74  u8 *alt_dev_password;
75  size_t alt_dev_password_len;
76  u16 alt_dev_pw_id;
77 
78  u8 peer_pubkey_hash[WPS_OOB_PUBKEY_HASH_LEN];
79  int peer_pubkey_hash_set;
80 
84  u8 request_type;
85 
89  u16 encr_type;
90 
94  u16 auth_type;
95 
96  u8 *new_psk;
97  size_t new_psk_len;
98 
99  int wps_pin_revealed;
100  struct wps_credential cred;
101 
102  struct wps_device_data peer_dev;
103 
107  u16 config_error;
108  u16 error_indication;
109 
110  int ext_reg;
111  int int_reg;
112 
113  struct wps_credential *new_ap_settings;
114 
115  void *dh_ctx;
116 
117  void (*ap_settings_cb)(void *ctx, const struct wps_credential *cred);
118  void *ap_settings_cb_ctx;
119 
120  struct wps_credential *use_cred;
121 
122  int use_psk_key;
123  u8 p2p_dev_addr[ETH_ALEN]; /* P2P Device Address of the client or
124  * 00:00:00:00:00:00 if not a P2p client */
125  int pbc_in_m1;
126 
127  struct wps_nfc_pw_token *nfc_pw_token;
128 };
129 
130 
131 /* wps_common.c */
132 void wps_kdf(const u8 *key, const u8 *label_prefix, size_t label_prefix_len,
133  const char *label, u8 *res, size_t res_len);
134 int wps_derive_keys(struct wps_data *wps);
135 int wps_derive_psk(struct wps_data *wps, const u8 *dev_passwd,
136  size_t dev_passwd_len);
137 struct wpabuf * wps_decrypt_encr_settings(struct wps_data *wps, const u8 *encr,
138  size_t encr_len);
139 void wps_fail_event(struct wps_context *wps, enum wps_msg_type msg,
140  u16 config_error, u16 error_indication, const u8 *mac_addr);
141 void wps_success_event(struct wps_context *wps, const u8 *mac_addr);
142 void wps_pwd_auth_fail_event(struct wps_context *wps, int enrollee, int part,
143  const u8 *mac_addr);
144 void wps_pbc_overlap_event(struct wps_context *wps);
145 void wps_pbc_timeout_event(struct wps_context *wps);
146 void wps_pbc_active_event(struct wps_context *wps);
147 void wps_pbc_disable_event(struct wps_context *wps);
148 
149 struct wpabuf * wps_build_wsc_ack(struct wps_data *wps);
150 struct wpabuf * wps_build_wsc_nack(struct wps_data *wps);
151 
152 /* wps_attr_build.c */
153 int wps_build_public_key(struct wps_data *wps, struct wpabuf *msg);
154 int wps_build_req_type(struct wpabuf *msg, enum wps_request_type type);
155 int wps_build_resp_type(struct wpabuf *msg, enum wps_response_type type);
156 int wps_build_config_methods(struct wpabuf *msg, u16 methods);
157 int wps_build_uuid_e(struct wpabuf *msg, const u8 *uuid);
158 int wps_build_dev_password_id(struct wpabuf *msg, u16 id);
159 int wps_build_config_error(struct wpabuf *msg, u16 err);
160 int wps_build_authenticator(struct wps_data *wps, struct wpabuf *msg);
161 int wps_build_key_wrap_auth(struct wps_data *wps, struct wpabuf *msg);
162 int wps_build_encr_settings(struct wps_data *wps, struct wpabuf *msg,
163  struct wpabuf *plain);
164 int wps_build_version(struct wpabuf *msg);
165 int wps_build_wfa_ext(struct wpabuf *msg, int req_to_enroll,
166  const u8 *auth_macs, size_t auth_macs_count);
167 int wps_build_msg_type(struct wpabuf *msg, enum wps_msg_type msg_type);
168 int wps_build_enrollee_nonce(struct wps_data *wps, struct wpabuf *msg);
169 int wps_build_registrar_nonce(struct wps_data *wps, struct wpabuf *msg);
170 int wps_build_auth_type_flags(struct wps_data *wps, struct wpabuf *msg);
171 int wps_build_encr_type_flags(struct wps_data *wps, struct wpabuf *msg);
172 int wps_build_conn_type_flags(struct wps_data *wps, struct wpabuf *msg);
173 int wps_build_assoc_state(struct wps_data *wps, struct wpabuf *msg);
174 int wps_build_oob_dev_pw(struct wpabuf *msg, u16 dev_pw_id,
175  const struct wpabuf *pubkey, const u8 *dev_pw,
176  size_t dev_pw_len);
177 struct wpabuf * wps_ie_encapsulate(struct wpabuf *data);
178 int wps_build_mac_addr(struct wpabuf *msg, const u8 *addr);
179 int wps_build_rf_bands_attr(struct wpabuf *msg, u8 rf_bands);
180 int wps_build_ap_channel(struct wpabuf *msg, u16 ap_channel);
181 
182 /* wps_attr_process.c */
183 int wps_process_authenticator(struct wps_data *wps, const u8 *authenticator,
184  const struct wpabuf *msg);
185 int wps_process_key_wrap_auth(struct wps_data *wps, struct wpabuf *msg,
186  const u8 *key_wrap_auth);
187 int wps_process_cred(struct wps_parse_attr *attr,
188  struct wps_credential *cred);
189 int wps_process_ap_settings(struct wps_parse_attr *attr,
190  struct wps_credential *cred);
191 
192 /* wps_enrollee.c */
193 struct wpabuf * wps_enrollee_get_msg(struct wps_data *wps,
194  enum wsc_op_code *op_code);
195 enum wps_process_res wps_enrollee_process_msg(struct wps_data *wps,
196  enum wsc_op_code op_code,
197  const struct wpabuf *msg);
198 
199 /* wps_registrar.c */
200 struct wpabuf * wps_registrar_get_msg(struct wps_data *wps,
201  enum wsc_op_code *op_code);
202 enum wps_process_res wps_registrar_process_msg(struct wps_data *wps,
203  enum wsc_op_code op_code,
204  const struct wpabuf *msg);
205 int wps_build_cred(struct wps_data *wps, struct wpabuf *msg);
206 int wps_device_store(struct wps_registrar *reg,
207  struct wps_device_data *dev, const u8 *uuid);
208 void wps_registrar_selected_registrar_changed(struct wps_registrar *reg,
209  u16 dev_pw_id);
210 const u8 * wps_authorized_macs(struct wps_registrar *reg, size_t *count);
211 int wps_registrar_pbc_overlap(struct wps_registrar *reg,
212  const u8 *addr, const u8 *uuid_e);
213 void wps_registrar_remove_nfc_pw_token(struct wps_registrar *reg,
214  struct wps_nfc_pw_token *token);
215 int wps_cb_new_psk(struct wps_registrar *reg, const u8 *mac_addr,
216  const u8 *p2p_dev_addr, const u8 *psk, size_t psk_len);
217 
218 #endif /* WPS_I_H */
wps_data
struct wps_data - WPS registration protocol data
Definition: wps_i.h:23
wps_data::wps
struct wps_context * wps
wps - Pointer to long term WPS context
Definition: wps_i.h:27
wps_data::config_error
u16 config_error
config_error - Configuration Error value to be used in NACK
Definition: wps_i.h:107
wps_registrar
Definition: wps_registrar.c:141
wpabuf
Definition: wpabuf.h:20
wps_data::er
int er
er - Whether the local end is an external registrar
Definition: wps_i.h:37
wps_data::request_type
u8 request_type
request_type - Request Type attribute from (Re)AssocReq
Definition: wps_i.h:84
wps_data::registrar
int registrar
registrar - Whether this end is a Registrar
Definition: wps_i.h:32
wps_device_data
struct wps_device_data - WPS Device Data : Device MAC address : Device Name (0..32 octets encoded in ...
Definition: wps.h:85
wps_data::encr_type
u16 encr_type
encr_type - Available encryption types
Definition: wps_i.h:89
wps_parse_attr
Definition: wps_attr_parse.h:14
wps_credential
struct wps_credential - WPS Credential : SSID : Length of SSID : Authentication Type (WPS_AUTH_OPEN...
Definition: wps.h:47
wps_data::auth_type
u16 auth_type
auth_type - Available authentication types
Definition: wps_i.h:94
wps_context
struct wps_context - Long term WPS context data
Definition: wps.h:594
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