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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 };
101 
102 int wps_parse_msg(const struct wpabuf *msg, struct wps_parse_attr *attr);
103 
104 #endif /* WPS_ATTR_PARSE_H */
105