Annotation of embedaddon/strongswan/src/libimcv/plugins/imv_attestation/imv_attestation_state.h, revision 1.1.1.1
1.1 misho 1: /*
2: * Copyright (C) 2011-2012 Sansar Choinyambuu, Andreas Steffen
3: * HSR Hochschule fuer Technik Rapperswil
4: *
5: * This program is free software; you can redistribute it and/or modify it
6: * under the terms of the GNU General Public License as published by the
7: * Free Software Foundation; either version 2 of the License, or (at your
8: * option) any later version. See <http://www.fsf.org/copyleft/gpl.txt>.
9: *
10: * This program is distributed in the hope that it will be useful, but
11: * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
12: * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
13: * for more details.
14: */
15:
16: /**
17: * @defgroup imv_attestation imv_attestation
18: * @ingroup libimcv_plugins
19: *
20: * @defgroup imv_attestation_state_t imv_attestation_state
21: * @{ @ingroup imv_attestation
22: */
23:
24: #ifndef IMV_ATTESTATION_STATE_H_
25: #define IMV_ATTESTATION_STATE_H_
26:
27: #include <imv/imv_state.h>
28: #include <imv/imv_reason_string.h>
29: #include <pts/pts.h>
30: #include <pts/pts_database.h>
31: #include <pts/components/pts_component.h>
32:
33: #include <library.h>
34: #include <bio/bio_writer.h>
35:
36: typedef struct imv_attestation_state_t imv_attestation_state_t;
37: typedef enum imv_attestation_flag_t imv_attestation_flag_t;
38: typedef enum imv_attestation_handshake_state_t imv_attestation_handshake_state_t;
39: typedef enum imv_meas_error_t imv_meas_error_t;
40:
41: /**
42: * IMV Attestation Flags set for completed actions
43: */
44: enum imv_attestation_flag_t {
45: IMV_ATTESTATION_ATTR_PRODUCT_INFO = (1<<0),
46: IMV_ATTESTATION_ATTR_STRING_VERSION = (1<<1),
47: IMV_ATTESTATION_ATTR_DEVICE_ID = (1<<2),
48: IMV_ATTESTATION_ATTR_MUST = (1<<3)-1,
49: IMV_ATTESTATION_ATTR_REQ = (1<<3),
50: IMV_ATTESTATION_ALGO = (1<<4),
51: IMV_ATTESTATION_DH_NONCE = (1<<5),
52: IMV_ATTESTATION_AIK = (1<<6),
53: IMV_ATTESTATION_FILE_MEAS = (1<<7),
54: IMV_ATTESTATION_REC = (1<<8)
55: };
56:
57: /**
58: * IMV Attestation Handshake States (state machine)
59: */
60: enum imv_attestation_handshake_state_t {
61: IMV_ATTESTATION_STATE_INIT,
62: IMV_ATTESTATION_STATE_DISCOVERY,
63: IMV_ATTESTATION_STATE_NONCE_REQ,
64: IMV_ATTESTATION_STATE_TPM_INIT,
65: IMV_ATTESTATION_STATE_COMP_EVID,
66: IMV_ATTESTATION_STATE_EVID_FINAL,
67: IMV_ATTESTATION_STATE_END,
68: };
69:
70: /**
71: * IMV Measurement Error Types
72: */
73: enum imv_meas_error_t {
74: IMV_ATTESTATION_ERROR_FILE_MEAS_FAIL = 1,
75: IMV_ATTESTATION_ERROR_FILE_MEAS_PEND = 2,
76: IMV_ATTESTATION_ERROR_NO_TRUSTED_AIK = 4,
77: IMV_ATTESTATION_ERROR_COMP_EVID_FAIL = 8,
78: IMV_ATTESTATION_ERROR_COMP_EVID_PEND = 16,
79: IMV_ATTESTATION_ERROR_TPM_QUOTE_FAIL = 32
80: };
81:
82: /**
83: * Internal state of an imv_attestation_t connection instance
84: */
85: struct imv_attestation_state_t {
86:
87: /**
88: * imv_state_t interface
89: */
90: imv_state_t interface;
91:
92: /**
93: * Get state of the handshake
94: *
95: * @return the handshake state of IMV
96: */
97: imv_attestation_handshake_state_t (*get_handshake_state)(
98: imv_attestation_state_t *this);
99:
100: /**
101: * Set state of the handshake
102: *
103: * @param new_state the handshake state of IMV
104: */
105: void (*set_handshake_state)(imv_attestation_state_t *this,
106: imv_attestation_handshake_state_t new_state);
107:
108: /**
109: * Get the PTS object
110: *
111: * @return PTS object
112: */
113: pts_t* (*get_pts)(imv_attestation_state_t *this);
114:
115: /**
116: * Create and add an entry to the list of Functional Components
117: *
118: * @param name Component Functional Name (cloned)
119: * @param depth Sub-component Depth
120: * @param pts_db PTS measurement database
121: * @return created functional component instance or NULL
122: */
123: pts_component_t* (*create_component)(imv_attestation_state_t *this,
124: pts_comp_func_name_t *name,
125: uint32_t depth,
126: pts_database_t *pts_db);
127:
128: /**
129: * Enumerate over all Functional Components
130: *
131: * @return Functional Component enumerator
132: */
133: enumerator_t* (*create_component_enumerator)(imv_attestation_state_t *this);
134:
135: /**
136: * Get a Functional Component with a given name
137: *
138: * @param name Name of the requested Functional Component
139: * @return Functional Component if found, NULL otherwise
140: */
141: pts_component_t* (*get_component)(imv_attestation_state_t *this,
142: pts_comp_func_name_t *name);
143:
144: /**
145: * Tell the Functional Components to finalize any measurement registrations
146: * and to check if all expected measurements were received
147: *
148: * @param result Writer appending component measurement results
149: */
150: void (*finalize_components)(imv_attestation_state_t *this,
151: bio_writer_t *result);
152:
153: /**
154: * Indicates the types of measurement errors that occurred
155: *
156: * @return Measurement error flags
157: */
158: uint32_t (*get_measurement_error)(imv_attestation_state_t *this);
159:
160: /**
161: * Call if a measurement error is encountered
162: *
163: * @param error Measurement error type
164: */
165: void (*set_measurement_error)(imv_attestation_state_t *this,
166: uint32_t error);
167:
168: /**
169: * Returns a concatenation of File Measurement reason strings
170: *
171: * @param reason_string Concatenated reason strings
172: */
173: void (*add_file_meas_reasons)(imv_attestation_state_t *this,
174: imv_reason_string_t *reason_string);
175:
176: /**
177: * Returns a concatenation of Component Evidence reason strings
178: *
179: * @param reason_string Concatenated reason strings
180: */
181: void (*add_comp_evid_reasons)(imv_attestation_state_t *this,
182: imv_reason_string_t *reason_string);
183: };
184:
185: /**
186: * Create an imv_attestation_state_t instance
187: *
188: * @param id connection ID
189: */
190: imv_state_t* imv_attestation_state_create(TNC_ConnectionID id);
191:
192: #endif /** IMV_ATTESTATION_STATE_H_ @}*/
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