insert IMV/IMC before providing BindFunction
[strongswan.git] / src / libcharon / plugins / tnc_imv / tnc_imv_manager.c
1 /*
2 * Copyright (C) 2006 Mike McCauley
3 * Copyright (C) 2010 Andreas Steffen, 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 "tnc_imv_manager.h"
17
18 #include <tnc/imv/imv_manager.h>
19 #include <tnc/tncifimv.h>
20
21 #include <debug.h>
22 #include <library.h>
23 #include <utils/linked_list.h>
24
25 typedef struct private_tnc_imv_manager_t private_tnc_imv_manager_t;
26
27 /**
28 * Private data of an imv_manager_t object.
29 */
30 struct private_tnc_imv_manager_t {
31
32 /**
33 * Public members of imv_manager_t.
34 */
35 imv_manager_t public;
36
37 /**
38 * Linked list of IMVs
39 */
40 linked_list_t *imvs;
41
42 /**
43 * Next IMV ID to be assigned
44 */
45 TNC_IMVID next_imv_id;
46 };
47
48 METHOD(imv_manager_t, add, bool,
49 private_tnc_imv_manager_t *this, imv_t *imv)
50 {
51 TNC_Version version;
52
53 /* Initialize the IMV module */
54 imv->set_id(imv, this->next_imv_id);
55 if (imv->initialize(imv->get_id(imv), TNC_IFIMV_VERSION_1,
56 TNC_IFIMV_VERSION_1, &version) != TNC_RESULT_SUCCESS)
57 {
58 DBG1(DBG_TNC, "could not initialize IMV '%s'",
59 imv->get_name(imv));
60 return FALSE;
61 }
62 this->imvs->insert_last(this->imvs, imv);
63 this->next_imv_id++;
64
65 if (imv->provide_bind_function(imv->get_id(imv), TNC_TNCS_BindFunction)
66 != TNC_RESULT_SUCCESS)
67 {
68 DBG1(DBG_TNC, "could not provide bind function for IMV '%s'",
69 imv->get_name(imv));
70 return FALSE;
71 }
72 return TRUE;
73 }
74
75 METHOD(imv_manager_t, notify_connection_change, void,
76 private_tnc_imv_manager_t *this, TNC_ConnectionID id,
77 TNC_ConnectionState state)
78 {
79 enumerator_t *enumerator;
80 imv_t *imv;
81
82 enumerator = this->imvs->create_enumerator(this->imvs);
83 while (enumerator->enumerate(enumerator, &imv))
84 {
85 if (imv->notify_connection_change)
86 {
87 imv->notify_connection_change(imv->get_id(imv), id, state);
88 }
89 }
90 enumerator->destroy(enumerator);
91 }
92
93 METHOD(imv_manager_t, set_message_types, TNC_Result,
94 private_tnc_imv_manager_t *this, TNC_IMVID id,
95 TNC_MessageTypeList supported_types,
96 TNC_UInt32 type_count)
97 {
98 enumerator_t *enumerator;
99 imv_t *imv;
100 TNC_Result result = TNC_RESULT_FATAL;
101
102 enumerator = this->imvs->create_enumerator(this->imvs);
103 while (enumerator->enumerate(enumerator, &imv))
104 {
105 if (id == imv->get_id(imv))
106 {
107 imv->set_message_types(imv, supported_types, type_count);
108 result = TNC_RESULT_SUCCESS;
109 break;
110 }
111 }
112 enumerator->destroy(enumerator);
113 return result;
114 }
115
116 METHOD(imv_manager_t, receive_message, void,
117 private_tnc_imv_manager_t *this, TNC_ConnectionID connection_id,
118 TNC_BufferReference message,
119 TNC_UInt32 message_len,
120 TNC_MessageType message_type)
121 {
122 enumerator_t *enumerator;
123 imv_t *imv;
124
125 enumerator = this->imvs->create_enumerator(this->imvs);
126 while (enumerator->enumerate(enumerator, &imv))
127 {
128 if (imv->receive_message && imv->type_supported(imv, message_type))
129 {
130 imv->receive_message(imv->get_id(imv), connection_id,
131 message, message_len, message_type);
132 }
133 }
134 enumerator->destroy(enumerator);
135 }
136
137 METHOD(imv_manager_t, destroy, void,
138 private_tnc_imv_manager_t *this)
139 {
140 imv_t *imv;
141
142 while (this->imvs->remove_last(this->imvs, (void**)&imv) == SUCCESS)
143 {
144 if (imv->terminate &&
145 imv->terminate(imv->get_id(imv)) != TNC_RESULT_SUCCESS)
146 {
147 DBG1(DBG_TNC, "IMV '%s' not terminated successfully",
148 imv->get_name(imv));
149 }
150 imv->destroy(imv);
151 }
152 this->imvs->destroy(this->imvs);
153 free(this);
154 }
155
156 /**
157 * Described in header.
158 */
159 imv_manager_t* tnc_imv_manager_create(void)
160 {
161 private_tnc_imv_manager_t *this;
162
163 INIT(this,
164 .public = {
165 .add = _add,
166 .notify_connection_change = _notify_connection_change,
167 .set_message_types = _set_message_types,
168 .receive_message = _receive_message,
169 .destroy = _destroy,
170 },
171 .imvs = linked_list_create(),
172 .next_imv_id = 1,
173 );
174
175
176 return &this->public;
177 }
178
179