| 1 | /* |
| 2 | * Fundamental types and constants relating to WPA |
| 3 | * |
| 4 | * Copyright 2007, Broadcom Corporation |
| 5 | * All Rights Reserved. |
| 6 | * |
| 7 | * THIS SOFTWARE IS OFFERED "AS IS", AND BROADCOM GRANTS NO WARRANTIES OF ANY |
| 8 | * KIND, EXPRESS OR IMPLIED, BY STATUTE, COMMUNICATION OR OTHERWISE. BROADCOM |
| 9 | * SPECIFICALLY DISCLAIMS ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS |
| 10 | * FOR A SPECIFIC PURPOSE OR NONINFRINGEMENT CONCERNING THIS SOFTWARE. |
| 11 | * |
| 12 | */ |
| 13 | |
| 14 | #ifndef _proto_wpa_h_ |
| 15 | #define _proto_wpa_h_ |
| 16 | |
| 17 | #include <typedefs.h> |
| 18 | #include <proto/ethernet.h> |
| 19 | |
| 20 | /* enable structure packing */ |
| 21 | #if defined(__GNUC__) |
| 22 | #define PACKED __attribute__((packed)) |
| 23 | #else |
| 24 | #pragma pack(1) |
| 25 | #define PACKED |
| 26 | #endif |
| 27 | |
| 28 | /* Reason Codes */ |
| 29 | |
| 30 | /* 13 through 23 taken from IEEE Std 802.11i-2004 */ |
| 31 | #define DOT11_RC_INVALID_WPA_IE 13 /* Invalid info. element */ |
| 32 | #define DOT11_RC_MIC_FAILURE 14 /* Michael failure */ |
| 33 | #define DOT11_RC_4WH_TIMEOUT 15 /* 4-way handshake timeout */ |
| 34 | #define DOT11_RC_GTK_UPDATE_TIMEOUT 16 /* Group key update timeout */ |
| 35 | #define DOT11_RC_WPA_IE_MISMATCH 17 /* WPA IE in 4-way handshake differs from |
| 36 | * (re-)assoc. request/probe response |
| 37 | */ |
| 38 | #define DOT11_RC_INVALID_MC_CIPHER 18 /* Invalid multicast cipher */ |
| 39 | #define DOT11_RC_INVALID_UC_CIPHER 19 /* Invalid unicast cipher */ |
| 40 | #define DOT11_RC_INVALID_AKMP 20 /* Invalid authenticated key management protocol */ |
| 41 | #define DOT11_RC_BAD_WPA_VERSION 21 /* Unsupported WPA version */ |
| 42 | #define DOT11_RC_INVALID_WPA_CAP 22 /* Invalid WPA IE capabilities */ |
| 43 | #define DOT11_RC_8021X_AUTH_FAIL 23 /* 802.1X authentication failure */ |
| 44 | |
| 45 | #define WPA2_PMKID_LEN 16 |
| 46 | |
| 47 | /* WPA IE fixed portion */ |
| 48 | typedef struct |
| 49 | { |
| 50 | uint8 tag; /* TAG */ |
| 51 | uint8 length; /* TAG length */ |
| 52 | uint8 oui[3]; /* IE OUI */ |
| 53 | uint8 oui_type; /* OUI type */ |
| 54 | struct { |
| 55 | uint8 low; |
| 56 | uint8 high; |
| 57 | } PACKED version; /* IE version */ |
| 58 | } PACKED wpa_ie_fixed_t; |
| 59 | #define WPA_IE_OUITYPE_LEN 4 |
| 60 | #define WPA_IE_FIXED_LEN 8 |
| 61 | #define WPA_IE_TAG_FIXED_LEN 6 |
| 62 | |
| 63 | #ifdef BCMWPA2 |
| 64 | typedef struct { |
| 65 | uint8 tag; /* TAG */ |
| 66 | uint8 length; /* TAG length */ |
| 67 | struct { |
| 68 | uint8 low; |
| 69 | uint8 high; |
| 70 | } PACKED version; /* IE version */ |
| 71 | } PACKED wpa_rsn_ie_fixed_t; |
| 72 | #define WPA_RSN_IE_FIXED_LEN 4 |
| 73 | #define WPA_RSN_IE_TAG_FIXED_LEN 2 |
| 74 | typedef uint8 wpa_pmkid_t[WPA2_PMKID_LEN]; |
| 75 | #endif |
| 76 | |
| 77 | /* WPA suite/multicast suite */ |
| 78 | typedef struct |
| 79 | { |
| 80 | uint8 oui[3]; |
| 81 | uint8 type; |
| 82 | } PACKED wpa_suite_t, wpa_suite_mcast_t; |
| 83 | #define WPA_SUITE_LEN 4 |
| 84 | |
| 85 | /* WPA unicast suite list/key management suite list */ |
| 86 | typedef struct |
| 87 | { |
| 88 | struct { |
| 89 | uint8 low; |
| 90 | uint8 high; |
| 91 | } PACKED count; |
| 92 | wpa_suite_t list[1]; |
| 93 | } PACKED wpa_suite_ucast_t, wpa_suite_auth_key_mgmt_t; |
| 94 | #define WPA_IE_SUITE_COUNT_LEN 2 |
| 95 | #ifdef BCMWPA2 |
| 96 | typedef struct |
| 97 | { |
| 98 | struct { |
| 99 | uint8 low; |
| 100 | uint8 high; |
| 101 | } PACKED count; |
| 102 | wpa_pmkid_t list[1]; |
| 103 | } PACKED wpa_pmkid_list_t; |
| 104 | #endif |
| 105 | |
| 106 | /* WPA cipher suites */ |
| 107 | #define WPA_CIPHER_NONE 0 /* None */ |
| 108 | #define WPA_CIPHER_WEP_40 1 /* WEP (40-bit) */ |
| 109 | #define WPA_CIPHER_TKIP 2 /* TKIP: default for WPA */ |
| 110 | #define WPA_CIPHER_AES_OCB 3 /* AES (OCB) */ |
| 111 | #define WPA_CIPHER_AES_CCM 4 /* AES (CCM) */ |
| 112 | #define WPA_CIPHER_WEP_104 5 /* WEP (104-bit) */ |
| 113 | |
| 114 | #define IS_WPA_CIPHER(cipher) ((cipher) == WPA_CIPHER_NONE || \ |
| 115 | (cipher) == WPA_CIPHER_WEP_40 || \ |
| 116 | (cipher) == WPA_CIPHER_WEP_104 || \ |
| 117 | (cipher) == WPA_CIPHER_TKIP || \ |
| 118 | (cipher) == WPA_CIPHER_AES_OCB || \ |
| 119 | (cipher) == WPA_CIPHER_AES_CCM) |
| 120 | |
| 121 | /* WPA TKIP countermeasures parameters */ |
| 122 | #define WPA_TKIP_CM_DETECT 60 /* multiple MIC failure window (seconds) */ |
| 123 | #define WPA_TKIP_CM_BLOCK 60 /* countermeasures active window (seconds) */ |
| 124 | |
| 125 | /* RSN IE defines */ |
| 126 | #define RSN_CAP_LEN 2 /* Length of RSN capabilities field (2 octets) */ |
| 127 | |
| 128 | /* RSN Capabilities defined in 802.11i */ |
| 129 | #define RSN_CAP_PREAUTH 0x0001 |
| 130 | #define RSN_CAP_NOPAIRWISE 0x0002 |
| 131 | #define RSN_CAP_PTK_REPLAY_CNTR_MASK 0x000C |
| 132 | #define RSN_CAP_PTK_REPLAY_CNTR_SHIFT 2 |
| 133 | #define RSN_CAP_GTK_REPLAY_CNTR_MASK 0x0030 |
| 134 | #define RSN_CAP_GTK_REPLAY_CNTR_SHIFT 4 |
| 135 | #define RSN_CAP_1_REPLAY_CNTR 0 |
| 136 | #define RSN_CAP_2_REPLAY_CNTRS 1 |
| 137 | #define RSN_CAP_4_REPLAY_CNTRS 2 |
| 138 | #define RSN_CAP_16_REPLAY_CNTRS 3 |
| 139 | |
| 140 | /* WPA capabilities defined in 802.11i */ |
| 141 | #define WPA_CAP_4_REPLAY_CNTRS RSN_CAP_4_REPLAY_CNTRS |
| 142 | #define WPA_CAP_16_REPLAY_CNTRS RSN_CAP_16_REPLAY_CNTRS |
| 143 | #define WPA_CAP_REPLAY_CNTR_SHIFT RSN_CAP_PTK_REPLAY_CNTR_SHIFT |
| 144 | #define WPA_CAP_REPLAY_CNTR_MASK RSN_CAP_PTK_REPLAY_CNTR_MASK |
| 145 | |
| 146 | /* WPA Specific defines */ |
| 147 | #define WPA_CAP_LEN RSN_CAP_LEN /* Length of RSN capabilities in RSN IE (2 octets) */ |
| 148 | |
| 149 | #define WPA_CAP_WPA2_PREAUTH RSN_CAP_PREAUTH |
| 150 | |
| 151 | |
| 152 | #undef PACKED |
| 153 | #if !defined(__GNUC__) |
| 154 | #pragma pack() |
| 155 | #endif |
| 156 | |
| 157 | #endif /* _proto_wpa_h_ */ |
| 158 | |
