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1.1 misho 1: /*
2: * Copyright (C) 2017 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: #include "imc_swima_state.h"
17:
18: #include <tncif_names.h>
19:
20: #include <utils/debug.h>
21:
22: typedef struct private_imc_swima_state_t private_imc_swima_state_t;
23:
24: /**
25: * Private data of an imc_swima_state_t object.
26: */
27: struct private_imc_swima_state_t {
28:
29: /**
30: * Public members of imc_swima_state_t
31: */
32: imc_swima_state_t public;
33:
34: /**
35: * TNCCS connection ID
36: */
37: TNC_ConnectionID connection_id;
38:
39: /**
40: * TNCCS connection state
41: */
42: TNC_ConnectionState state;
43:
44: /**
45: * Assessment/Evaluation Result
46: */
47: TNC_IMV_Evaluation_Result result;
48:
49: /**
50: * Does the TNCCS connection support long message types?
51: */
52: bool has_long;
53:
54: /**
55: * Does the TNCCS connection support exclusive delivery?
56: */
57: bool has_excl;
58:
59: /**
60: * Maximum PA-TNC message size for this TNCCS connection
61: */
62: uint32_t max_msg_len;
63:
64: /**
65: * PA-TNC attribute segmentation contracts associated with TNCCS connection
66: */
67: seg_contract_manager_t *contracts;
68:
69: /**
70: * Has a subscription been established?
71: */
72: bool has_subscription;
73:
74: /**
75: * State information on subscriptions
76: */
77: imc_swima_subscription_t *subscription;
78:
79: /**
80: * Earliest EID for the next subscription round
81: */
82: uint32_t earliest_eid;
83:
84: };
85:
86: static void free_subscription(imc_swima_subscription_t *this)
87: {
88: if (this)
89: {
90: this->targets->destroy(this->targets);
91: free(this);
92: }
93: }
94:
95: METHOD(imc_state_t, get_connection_id, TNC_ConnectionID,
96: private_imc_swima_state_t *this)
97: {
98: return this->connection_id;
99: }
100:
101: METHOD(imc_state_t, has_long, bool,
102: private_imc_swima_state_t *this)
103: {
104: return this->has_long;
105: }
106:
107: METHOD(imc_state_t, has_excl, bool,
108: private_imc_swima_state_t *this)
109: {
110: return this->has_excl;
111: }
112:
113: METHOD(imc_state_t, set_flags, void,
114: private_imc_swima_state_t *this, bool has_long, bool has_excl)
115: {
116: this->has_long = has_long;
117: this->has_excl = has_excl;
118: }
119:
120: METHOD(imc_state_t, set_max_msg_len, void,
121: private_imc_swima_state_t *this, uint32_t max_msg_len)
122: {
123: this->max_msg_len = max_msg_len;
124: }
125:
126: METHOD(imc_state_t, get_max_msg_len, uint32_t,
127: private_imc_swima_state_t *this)
128: {
129: return this->max_msg_len;
130: }
131:
132: METHOD(imc_state_t, get_contracts, seg_contract_manager_t*,
133: private_imc_swima_state_t *this)
134: {
135: return this->contracts;
136: }
137:
138: METHOD(imc_state_t, change_state, TNC_ConnectionState,
139: private_imc_swima_state_t *this, TNC_ConnectionState new_state)
140: {
141: TNC_ConnectionState old_state;
142:
143: old_state = this->state;
144: this->state = new_state;
145: return old_state;
146: }
147:
148: METHOD(imc_state_t, set_result, void,
149: private_imc_swima_state_t *this, TNC_IMCID id,
150: TNC_IMV_Evaluation_Result result)
151: {
152: this->result = result;
153: }
154:
155: METHOD(imc_state_t, get_result, bool,
156: private_imc_swima_state_t *this, TNC_IMCID id,
157: TNC_IMV_Evaluation_Result *result)
158: {
159: if (result)
160: {
161: *result = this->result;
162: }
163: return this->result != TNC_IMV_EVALUATION_RESULT_DONT_KNOW;
164: }
165:
166: METHOD(imc_state_t, reset, void,
167: private_imc_swima_state_t *this)
168: {
169: this->result = TNC_IMV_EVALUATION_RESULT_DONT_KNOW;
170: }
171:
172: METHOD(imc_state_t, destroy, void,
173: private_imc_swima_state_t *this)
174: {
175: free(this->subscription);
176: this->contracts->destroy(this->contracts);
177: free(this);
178: }
179:
180: METHOD(imc_swima_state_t, set_subscription, void,
181: private_imc_swima_state_t *this, imc_swima_subscription_t *subscription,
182: bool set)
183: {
184: free_subscription(this->subscription);
185: this->has_subscription = set;
186:
187: if (set)
188: {
189: this->subscription = subscription;
190: }
191: else
192: {
193: this->subscription = NULL;
194: }
195: }
196:
197: METHOD(imc_swima_state_t, get_subscription, bool,
198: private_imc_swima_state_t *this, imc_swima_subscription_t **subscription)
199: {
200: if (subscription)
201: {
202: *subscription = this->subscription;
203: }
204: return this->has_subscription;
205: }
206:
207: METHOD(imc_swima_state_t, set_earliest_eid, void,
208: private_imc_swima_state_t *this, uint32_t eid)
209: {
210: this->earliest_eid = eid;
211: }
212:
213: METHOD(imc_swima_state_t, get_earliest_eid, uint32_t,
214: private_imc_swima_state_t *this)
215: {
216: return this->earliest_eid;
217: }
218:
219: /**
220: * Described in header.
221: */
222: imc_state_t *imc_swima_state_create(TNC_ConnectionID connection_id)
223: {
224: private_imc_swima_state_t *this;
225:
226: INIT(this,
227: .public = {
228: .interface = {
229: .get_connection_id = _get_connection_id,
230: .has_long = _has_long,
231: .has_excl = _has_excl,
232: .set_flags = _set_flags,
233: .set_max_msg_len = _set_max_msg_len,
234: .get_max_msg_len = _get_max_msg_len,
235: .get_contracts = _get_contracts,
236: .change_state = _change_state,
237: .set_result = _set_result,
238: .get_result = _get_result,
239: .reset = _reset,
240: .destroy = _destroy,
241: },
242: .set_subscription = _set_subscription,
243: .get_subscription = _get_subscription,
244: .set_earliest_eid = _set_earliest_eid,
245: .get_earliest_eid = _get_earliest_eid,
246: },
247: .state = TNC_CONNECTION_STATE_CREATE,
248: .result = TNC_IMV_EVALUATION_RESULT_DONT_KNOW,
249: .connection_id = connection_id,
250: .contracts = seg_contract_manager_create(),
251: );
252:
253: return &this->public.interface;
254: }
255:
256: