| 1 | /** @file
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| 2 | This file defines the EFI Supplicant Protocol.
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| 3 |
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| 4 | Copyright (c) 2016 - 2017, Intel Corporation. All rights reserved.<BR>
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| 5 | SPDX-License-Identifier: BSD-2-Clause-Patent
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| 6 |
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| 7 | @par Revision Reference:
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| 8 | This Protocol is introduced in UEFI Specification 2.6
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| 9 |
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| 10 | **/
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| 11 |
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| 12 | #ifndef __EFI_SUPPLICANT_PROTOCOL_H__
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| 13 | #define __EFI_SUPPLICANT_PROTOCOL_H__
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| 14 |
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| 15 | #include <Protocol/WiFi2.h>
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| 16 |
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| 17 | ///
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| 18 | /// The EFI Supplicant Service Binding Protocol is used to locate EFI
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| 19 | /// Supplicant Protocol drivers to create and destroy child of the driver to
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| 20 | /// communicate with other host using Supplicant protocol.
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| 21 | ///
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| 22 | #define EFI_SUPPLICANT_SERVICE_BINDING_PROTOCOL_GUID \
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| 23 | { \
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| 24 | 0x45bcd98e, 0x59ad, 0x4174, { 0x95, 0x46, 0x34, 0x4a, 0x7, 0x48, 0x58, 0x98 } \
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| 25 | }
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| 26 |
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| 27 | ///
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| 28 | /// The EFI Supplicant protocol provides services to process authentication and
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| 29 | /// data encryption/decryption for security management.
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| 30 | ///
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| 31 | #define EFI_SUPPLICANT_PROTOCOL_GUID \
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| 32 | { \
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| 33 | 0x54fcc43e, 0xaa89, 0x4333, { 0x9a, 0x85, 0xcd, 0xea, 0x24, 0x5, 0x1e, 0x9e } \
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| 34 | }
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| 35 |
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| 36 | typedef struct _EFI_SUPPLICANT_PROTOCOL EFI_SUPPLICANT_PROTOCOL;
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| 37 |
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| 38 | ///
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| 39 | /// EFI_SUPPLICANT_CRYPT_MODE
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| 40 | ///
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| 41 | typedef enum {
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| 42 | //
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| 43 | // Encrypt data provided in the fragment buffers.
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| 44 | //
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| 45 | EfiSupplicantEncrypt,
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| 46 | //
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| 47 | // Decrypt data provided in the fragment buffers.
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| 48 | //
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| 49 | EfiSupplicantDecrypt,
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| 50 | } EFI_SUPPLICANT_CRYPT_MODE;
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| 51 |
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| 52 | ///
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| 53 | /// EFI_SUPPLICANT_DATA_TYPE
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| 54 | ///
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| 55 | typedef enum {
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| 56 | //
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| 57 | // Session Configuration
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| 58 | //
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| 59 |
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| 60 | //
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| 61 | // Current authentication type in use. The corresponding Data is of type
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| 62 | // EFI_80211_AKM_SUITE_SELECTOR.
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| 63 | //
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| 64 | EfiSupplicant80211AKMSuite,
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| 65 | //
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| 66 | // Group data encryption type in use. The corresponding Data is of type
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| 67 | // EFI_SUPPLICANT_CIPHER_SUITE_SELECTOR.
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| 68 | //
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| 69 | EfiSupplicant80211GroupDataCipherSuite,
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| 70 | //
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| 71 | // Pairwise encryption type in use. The corresponding Data is of type
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| 72 | // EFI_80211_CIPHER_SUITE_SELECTOR.
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| 73 | //
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| 74 | EfiSupplicant80211PairwiseCipherSuite,
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| 75 | //
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| 76 | // PSK password. The corresponding Data is a NULL-terminated ASCII string.
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| 77 | //
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| 78 | EfiSupplicant80211PskPassword,
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| 79 | //
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| 80 | // Target SSID name. The corresponding Data is of type EFI_80211_SSID.
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| 81 | //
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| 82 | EfiSupplicant80211TargetSSIDName,
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| 83 | //
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| 84 | // Station MAC address. The corresponding Data is of type
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| 85 | // EFI_80211_MAC_ADDRESS.
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| 86 | //
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| 87 | EfiSupplicant80211StationMac,
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| 88 | //
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| 89 | // Target SSID MAC address. The corresponding Data is 6 bytes MAC address.
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| 90 | //
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| 91 | EfiSupplicant80211TargetSSIDMac,
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| 92 |
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| 93 | //
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| 94 | // Session Information
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| 95 | //
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| 96 |
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| 97 | //
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| 98 | // 802.11 PTK. The corresponding Data is of type EFI_SUPPLICANT_KEY.
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| 99 | //
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| 100 | EfiSupplicant80211PTK,
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| 101 | //
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| 102 | // 802.11 GTK. The corresponding Data is of type EFI_SUPPLICANT_GTK_LIST.
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| 103 | //
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| 104 | EfiSupplicant80211GTK,
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| 105 | //
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| 106 | // Supplicant state. The corresponding Data is
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| 107 | // EFI_EAPOL_SUPPLICANT_PAE_STATE.
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| 108 | //
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| 109 | EfiSupplicantState,
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| 110 | //
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| 111 | // 802.11 link state. The corresponding Data is EFI_80211_LINK_STATE.
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| 112 | //
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| 113 | EfiSupplicant80211LinkState,
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| 114 | //
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| 115 | // Flag indicates key is refreshed. The corresponding Data is
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| 116 | // EFI_SUPPLICANT_KEY_REFRESH.
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| 117 | //
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| 118 | EfiSupplicantKeyRefresh,
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| 119 |
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| 120 | //
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| 121 | // Session Configuration
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| 122 | //
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| 123 |
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| 124 | //
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| 125 | // Supported authentication types. The corresponding Data is of type
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| 126 | // EFI_80211_AKM_SUITE_SELECTOR.
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| 127 | //
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| 128 | EfiSupplicant80211SupportedAKMSuites,
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| 129 | //
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| 130 | // Supported software encryption types provided by supplicant driver. The
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| 131 | // corresponding Data is of type EFI_80211_CIPHER_SUITE_SELECTOR.
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| 132 | //
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| 133 | EfiSupplicant80211SupportedSoftwareCipherSuites,
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| 134 | //
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| 135 | // Supported hardware encryption types provided by wireless UNDI driver. The
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| 136 | // corresponding Data is of type EFI_80211_CIPHER_SUITE_SELECTOR.
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| 137 | //
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| 138 | EfiSupplicant80211SupportedHardwareCipherSuites,
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| 139 |
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| 140 | //
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| 141 | // Session Information
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| 142 | //
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| 143 |
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| 144 | //
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| 145 | // 802.11 Integrity GTK. The corresponding Data is of type
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| 146 | // EFI_SUPPLICANT_GTK_LIST.
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| 147 | //
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| 148 | EfiSupplicant80211IGTK,
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| 149 | //
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| 150 | // 802.11 PMK. The corresponding Data is 32 bytes pairwise master key.
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| 151 | //
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| 152 | EfiSupplicant80211PMK,
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| 153 | EfiSupplicantDataTypeMaximum
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| 154 | } EFI_SUPPLICANT_DATA_TYPE;
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| 155 |
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| 156 | ///
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| 157 | /// EFI_80211_LINK_STATE
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| 158 | ///
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| 159 | typedef enum {
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| 160 | //
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| 161 | // Indicates initial start state, unauthenticated, unassociated.
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| 162 | //
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| 163 | Ieee80211UnauthenticatedUnassociated,
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| 164 | //
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| 165 | // Indicates authenticated, unassociated.
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| 166 | //
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| 167 | Ieee80211AuthenticatedUnassociated,
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| 168 | //
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| 169 | // Indicates authenticated and associated, but pending RSN authentication.
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| 170 | //
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| 171 | Ieee80211PendingRSNAuthentication,
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| 172 | //
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| 173 | // Indicates authenticated and associated.
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| 174 | //
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| 175 | Ieee80211AuthenticatedAssociated
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| 176 | } EFI_80211_LINK_STATE;
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| 177 |
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| 178 | ///
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| 179 | /// EFI_SUPPLICANT_KEY_TYPE (IEEE Std 802.11 Section 6.3.19.1.2)
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| 180 | ///
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| 181 | typedef enum {
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| 182 | Group,
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| 183 | Pairwise,
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| 184 | PeerKey,
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| 185 | IGTK
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| 186 | } EFI_SUPPLICANT_KEY_TYPE;
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| 187 |
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| 188 | ///
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| 189 | /// EFI_SUPPLICANT_KEY_DIRECTION (IEEE Std 802.11 Section 6.3.19.1.2)
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| 190 | ///
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| 191 | typedef enum {
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| 192 | //
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| 193 | // Indicates that the keys are being installed for the receive direction.
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| 194 | //
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| 195 | Receive,
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| 196 | //
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| 197 | // Indicates that the keys are being installed for the transmit direction.
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| 198 | //
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| 199 | Transmit,
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| 200 | //
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| 201 | // Indicates that the keys are being installed for both the receive and
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| 202 | // transmit directions.
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| 203 | //
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| 204 | Both
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| 205 | } EFI_SUPPLICANT_KEY_DIRECTION;
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| 206 |
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| 207 | ///
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| 208 | /// EFI_SUPPLICANT_KEY_REFRESH
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| 209 | ///
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| 210 | typedef struct {
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| 211 | //
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| 212 | // If TRUE, indicates GTK is just refreshed after a successful call to
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| 213 | // EFI_SUPPLICANT_PROTOCOL.BuildResponsePacket().
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| 214 | //
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| 215 | BOOLEAN GTKRefresh;
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| 216 | } EFI_SUPPLICANT_KEY_REFRESH;
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| 217 |
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| 218 | #define EFI_MAX_KEY_LEN 64
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| 219 |
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| 220 | ///
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| 221 | /// EFI_SUPPLICANT_KEY
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| 222 | ///
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| 223 | typedef struct {
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| 224 | //
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| 225 | // The key value.
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| 226 | //
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| 227 | UINT8 Key[EFI_MAX_KEY_LEN];
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| 228 | //
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| 229 | // Length in bytes of the Key. Should be up to EFI_MAX_KEY_LEN.
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| 230 | //
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| 231 | UINT8 KeyLen;
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| 232 | //
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| 233 | // The key identifier.
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| 234 | //
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| 235 | UINT8 KeyId;
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| 236 | //
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| 237 | // Defines whether this key is a group key, pairwise key, PeerKey, or
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| 238 | // Integrity Group.
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| 239 | //
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| 240 | EFI_SUPPLICANT_KEY_TYPE KeyType;
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| 241 | //
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| 242 | // The value is set according to the KeyType.
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| 243 | //
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| 244 | EFI_80211_MAC_ADDRESS Addr;
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| 245 | //
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| 246 | // The Receive Sequence Count value.
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| 247 | //
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| 248 | UINT8 Rsc[8];
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| 249 | //
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| 250 | // Length in bytes of the Rsc. Should be up to 8.
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| 251 | //
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| 252 | UINT8 RscLen;
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| 253 | //
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| 254 | // Indicates whether the key is configured by the Authenticator or
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| 255 | // Supplicant. The value true indicates Authenticator.
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| 256 | //
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| 257 | BOOLEAN IsAuthenticator;
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| 258 | //
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| 259 | // The cipher suite required for this association.
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| 260 | //
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| 261 | EFI_80211_SUITE_SELECTOR CipherSuite;
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| 262 | //
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| 263 | // Indicates the direction for which the keys are to be installed.
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| 264 | //
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| 265 | EFI_SUPPLICANT_KEY_DIRECTION Direction;
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| 266 | } EFI_SUPPLICANT_KEY;
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| 267 |
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| 268 | ///
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| 269 | /// EFI_SUPPLICANT_GTK_LIST
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| 270 | ///
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| 271 | typedef struct {
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| 272 | //
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| 273 | // Indicates the number of GTKs that are contained in GTKList.
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| 274 | //
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| 275 | UINT8 GTKCount;
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| 276 | //
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| 277 | // A variable-length array of GTKs of type EFI_SUPPLICANT_KEY. The number of
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| 278 | // entries is specified by GTKCount.
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| 279 | //
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| 280 | EFI_SUPPLICANT_KEY GTKList[1];
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| 281 | } EFI_SUPPLICANT_GTK_LIST;
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| 282 |
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| 283 | ///
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| 284 | /// EFI_SUPPLICANT_FRAGMENT_DATA
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| 285 | ///
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| 286 | typedef struct {
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| 287 | //
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| 288 | // Length of data buffer in the fragment.
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| 289 | //
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| 290 | UINT32 FragmentLength;
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| 291 | //
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| 292 | // Pointer to the data buffer in the fragment.
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| 293 | //
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| 294 | VOID *FragmentBuffer;
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| 295 | } EFI_SUPPLICANT_FRAGMENT_DATA;
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| 296 |
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| 297 | /**
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| 298 | BuildResponsePacket() is called during STA and AP authentication is in
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| 299 | progress. Supplicant derives the PTK or session keys depend on type of
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| 300 | authentication is being employed.
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| 301 |
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| 302 | @param[in] This Pointer to the EFI_SUPPLICANT_PROTOCOL
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| 303 | instance.
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| 304 | @param[in] RequestBuffer Pointer to the most recently received EAPOL
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| 305 | packet. NULL means the supplicant need
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| 306 | initiate the EAP authentication session and
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| 307 | send EAPOL-Start message.
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| 308 | @param[in] RequestBufferSize
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| 309 | Packet size in bytes for the most recently
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| 310 | received EAPOL packet. 0 is only valid when
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| 311 | RequestBuffer is NULL.
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| 312 | @param[out] Buffer Pointer to the buffer to hold the built
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| 313 | packet.
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| 314 | @param[in, out] BufferSize Pointer to the buffer size in bytes. On
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| 315 | input, it is the buffer size provided by the
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| 316 | caller. On output, it is the buffer size in
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| 317 | fact needed to contain the packet.
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| 318 |
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| 319 | @retval EFI_SUCCESS The required EAPOL packet is built
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| 320 | successfully.
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| 321 | @retval EFI_INVALID_PARAMETER One or more of the following conditions is
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| 322 | TRUE:
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| 323 | RequestBuffer is NULL, but RequestSize is
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| 324 | NOT 0.
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| 325 | RequestBufferSize is 0.
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| 326 | Buffer is NULL, but RequestBuffer is NOT 0.
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| 327 | BufferSize is NULL.
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| 328 | @retval EFI_BUFFER_TOO_SMALL BufferSize is too small to hold the response
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| 329 | packet.
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| 330 | @retval EFI_NOT_READY Current EAPOL session state is NOT ready to
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| 331 | build ResponsePacket.
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| 332 |
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| 333 | **/
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| 334 | typedef
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| 335 | EFI_STATUS
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| 336 | (EFIAPI *EFI_SUPPLICANT_BUILD_RESPONSE_PACKET)(
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| 337 | IN EFI_SUPPLICANT_PROTOCOL *This,
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| 338 | IN UINT8 *RequestBuffer OPTIONAL,
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| 339 | IN UINTN RequestBufferSize OPTIONAL,
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| 340 | OUT UINT8 *Buffer,
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| 341 | IN OUT UINTN *BufferSize
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| 342 | );
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| 343 |
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| 344 | /**
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| 345 | ProcessPacket() is called to Supplicant driver to encrypt or decrypt the data
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| 346 | depending type of authentication type.
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| 347 |
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| 348 | @param[in] This Pointer to the EFI_SUPPLICANT_PROTOCOL
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| 349 | instance.
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| 350 | @param[in, out] FragmentTable Pointer to a list of fragment. The caller
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| 351 | will take responsible to handle the original
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| 352 | FragmentTable while it may be reallocated in
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| 353 | Supplicant driver.
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| 354 | @param[in] FragmentCount Number of fragment.
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| 355 | @param[in] CryptMode Crypt mode.
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| 356 |
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| 357 | @retval EFI_SUCCESS The operation completed successfully.
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| 358 | @retval EFI_INVALID_PARAMETER One or more of the following conditions is
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| 359 | TRUE:
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| 360 | FragmentTable is NULL.
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| 361 | FragmentCount is NULL.
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| 362 | CryptMode is invalid.
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| 363 | @retval EFI_NOT_READY Current supplicant state is NOT Authenticated.
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| 364 | @retval EFI_ABORTED Something wrong decryption the message.
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| 365 | @retval EFI_UNSUPPORTED This API is not supported.
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| 366 |
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| 367 | **/
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| 368 | typedef
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| 369 | EFI_STATUS
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| 370 | (EFIAPI *EFI_SUPPLICANT_PROCESS_PACKET)(
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| 371 | IN EFI_SUPPLICANT_PROTOCOL *This,
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| 372 | IN OUT EFI_SUPPLICANT_FRAGMENT_DATA **FragmentTable,
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| 373 | IN UINT32 *FragmentCount,
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| 374 | IN EFI_SUPPLICANT_CRYPT_MODE CryptMode
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| 375 | );
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| 376 |
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| 377 | /**
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| 378 | Set Supplicant configuration data.
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| 379 |
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| 380 | @param[in] This Pointer to the EFI_SUPPLICANT_PROTOCOL
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| 381 | instance.
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| 382 | @param[in] DataType The type of data.
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| 383 | @param[in] Data Pointer to the buffer to hold the data.
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| 384 | @param[in] DataSize Pointer to the buffer size in bytes.
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| 385 |
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| 386 | @retval EFI_SUCCESS The Supplicant configuration data is set
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| 387 | successfully.
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| 388 | @retval EFI_INVALID_PARAMETER One or more of the following conditions is
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| 389 | TRUE:
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| 390 | Data is NULL.
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| 391 | DataSize is 0.
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| 392 | @retval EFI_UNSUPPORTED The DataType is unsupported.
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| 393 | @retval EFI_OUT_OF_RESOURCES Required system resources could not be allocated.
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| 394 |
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| 395 | **/
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| 396 | typedef
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| 397 | EFI_STATUS
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| 398 | (EFIAPI *EFI_SUPPLICANT_SET_DATA)(
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| 399 | IN EFI_SUPPLICANT_PROTOCOL *This,
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| 400 | IN EFI_SUPPLICANT_DATA_TYPE DataType,
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| 401 | IN VOID *Data,
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| 402 | IN UINTN DataSize
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| 403 | );
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| 404 |
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| 405 | /**
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| 406 | Get Supplicant configuration data.
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| 407 |
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| 408 | @param[in] This Pointer to the EFI_SUPPLICANT_PROTOCOL
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| 409 | instance.
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| 410 | @param[in] DataType The type of data.
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| 411 | @param[out] Data Pointer to the buffer to hold the data.
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| 412 | Ignored if DataSize is 0.
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| 413 | @param[in, out] DataSize Pointer to the buffer size in bytes. On
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| 414 | input, it is the buffer size provided by the
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| 415 | caller. On output, it is the buffer size in
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| 416 | fact needed to contain the packet.
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| 417 |
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| 418 | @retval EFI_SUCCESS The Supplicant configuration data is got
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| 419 | successfully.
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| 420 | @retval EFI_INVALID_PARAMETER One or more of the following conditions is
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| 421 | TRUE:
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| 422 | This is NULL.
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| 423 | DataSize is NULL.
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| 424 | Data is NULL if *DataSize is not zero.
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| 425 | @retval EFI_UNSUPPORTED The DataType is unsupported.
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| 426 | @retval EFI_NOT_FOUND The Supplicant configuration data is not
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| 427 | found.
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| 428 | @retval EFI_BUFFER_TOO_SMALL The size of Data is too small for the
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| 429 | specified configuration data and the required
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| 430 | size is returned in DataSize.
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| 431 |
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| 432 | **/
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| 433 | typedef
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| 434 | EFI_STATUS
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| 435 | (EFIAPI *EFI_SUPPLICANT_GET_DATA)(
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| 436 | IN EFI_SUPPLICANT_PROTOCOL *This,
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| 437 | IN EFI_SUPPLICANT_DATA_TYPE DataType,
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| 438 | OUT UINT8 *Data OPTIONAL,
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| 439 | IN OUT UINTN *DataSize
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| 440 | );
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| 441 |
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| 442 | ///
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| 443 | /// The EFI_SUPPLICANT_PROTOCOL is designed to provide unified place for WIFI
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| 444 | /// and EAP security management. Both PSK authentication and 802.1X EAP
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| 445 | /// authentication can be managed via this protocol and driver or application
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| 446 | /// as a consumer can only focus on about packet transmitting or receiving.
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| 447 | ///
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| 448 | struct _EFI_SUPPLICANT_PROTOCOL {
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| 449 | EFI_SUPPLICANT_BUILD_RESPONSE_PACKET BuildResponsePacket;
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| 450 | EFI_SUPPLICANT_PROCESS_PACKET ProcessPacket;
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| 451 | EFI_SUPPLICANT_SET_DATA SetData;
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| 452 | EFI_SUPPLICANT_GET_DATA GetData;
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| 453 | };
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| 454 |
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| 455 | extern EFI_GUID gEfiSupplicantServiceBindingProtocolGuid;
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| 456 | extern EFI_GUID gEfiSupplicantProtocolGuid;
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| 457 |
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| 458 | #endif
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