1  /*
2   * Wi-Fi Protected Setup - attribute parsing
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_ATTR_PARSE_H
10  #define WPS_ATTR_PARSE_H
11  
12  #include "wps.h"
13  
14  struct wps_parse_attr {
15  	/* fixed length fields */
16  	const u8 *version; /* 1 octet */
17  	const u8 *version2; /* 1 octet */
18  	const u8 *msg_type; /* 1 octet */
19  	const u8 *enrollee_nonce; /* WPS_NONCE_LEN (16) octets */
20  	const u8 *registrar_nonce; /* WPS_NONCE_LEN (16) octets */
21  	const u8 *uuid_r; /* WPS_UUID_LEN (16) octets */
22  	const u8 *uuid_e; /* WPS_UUID_LEN (16) octets */
23  	const u8 *auth_type_flags; /* 2 octets */
24  	const u8 *encr_type_flags; /* 2 octets */
25  	const u8 *conn_type_flags; /* 1 octet */
26  	const u8 *config_methods; /* 2 octets */
27  	const u8 *sel_reg_config_methods; /* 2 octets */
28  	const u8 *primary_dev_type; /* 8 octets */
29  	const u8 *rf_bands; /* 1 octet */
30  	const u8 *assoc_state; /* 2 octets */
31  	const u8 *config_error; /* 2 octets */
32  	const u8 *dev_password_id; /* 2 octets */
33  	const u8 *os_version; /* 4 octets */
34  	const u8 *wps_state; /* 1 octet */
35  	const u8 *authenticator; /* WPS_AUTHENTICATOR_LEN (8) octets */
36  	const u8 *r_hash1; /* WPS_HASH_LEN (32) octets */
37  	const u8 *r_hash2; /* WPS_HASH_LEN (32) octets */
38  	const u8 *e_hash1; /* WPS_HASH_LEN (32) octets */
39  	const u8 *e_hash2; /* WPS_HASH_LEN (32) octets */
40  	const u8 *r_snonce1; /* WPS_SECRET_NONCE_LEN (16) octets */
41  	const u8 *r_snonce2; /* WPS_SECRET_NONCE_LEN (16) octets */
42  	const u8 *e_snonce1; /* WPS_SECRET_NONCE_LEN (16) octets */
43  	const u8 *e_snonce2; /* WPS_SECRET_NONCE_LEN (16) octets */
44  	const u8 *key_wrap_auth; /* WPS_KWA_LEN (8) octets */
45  	const u8 *auth_type; /* 2 octets */
46  	const u8 *encr_type; /* 2 octets */
47  	const u8 *network_idx; /* 1 octet */
48  	const u8 *network_key_idx; /* 1 octet */
49  	const u8 *mac_addr; /* ETH_ALEN (6) octets */
50  	const u8 *selected_registrar; /* 1 octet (Bool) */
51  	const u8 *request_type; /* 1 octet */
52  	const u8 *response_type; /* 1 octet */
53  	const u8 *ap_setup_locked; /* 1 octet */
54  	const u8 *settings_delay_time; /* 1 octet */
55  	const u8 *network_key_shareable; /* 1 octet (Bool) */
56  	const u8 *request_to_enroll; /* 1 octet (Bool) */
57  	const u8 *ap_channel; /* 2 octets */
58  	const u8 *registrar_configuration_methods; /* 2 octets */
59  
60  	/* variable length fields */
61  	const u8 *manufacturer;
62  	const u8 *model_name;
63  	const u8 *model_number;
64  	const u8 *serial_number;
65  	const u8 *dev_name;
66  	const u8 *public_key;
67  	const u8 *encr_settings;
68  	const u8 *ssid; /* <= 32 octets */
69  	const u8 *network_key; /* <= 64 octets */
70  	const u8 *authorized_macs; /* <= 30 octets */
71  	const u8 *sec_dev_type_list; /* <= 128 octets */
72  	const u8 *oob_dev_password; /* 38..54 octets */
73  	u16 manufacturer_len;
74  	u16 model_name_len;
75  	u16 model_number_len;
76  	u16 serial_number_len;
77  	u16 dev_name_len;
78  	u16 public_key_len;
79  	u16 encr_settings_len;
80  	u16 ssid_len;
81  	u16 network_key_len;
82  	u16 authorized_macs_len;
83  	u16 sec_dev_type_list_len;
84  	u16 oob_dev_password_len;
85  
86  	/* attributes that can occur multiple times */
87  #define MAX_CRED_COUNT 10
88  #define MAX_REQ_DEV_TYPE_COUNT 10
89  
90  	unsigned int num_cred;
91  	unsigned int num_req_dev_type;
92  	unsigned int num_vendor_ext;
93  
94  	u16 cred_len[MAX_CRED_COUNT];
95  	u16 vendor_ext_len[MAX_WPS_PARSE_VENDOR_EXT];
96  
97  	const u8 *cred[MAX_CRED_COUNT];
98  	const u8 *req_dev_type[MAX_REQ_DEV_TYPE_COUNT];
99  	const u8 *vendor_ext[MAX_WPS_PARSE_VENDOR_EXT];
100  	u8 multi_ap_ext;
101  };
102  
103  int wps_parse_msg(const struct wpabuf *msg, struct wps_parse_attr *attr);
104  
105  #endif /* WPS_ATTR_PARSE_H */
106