Annotation of embedaddon/strongswan/src/libimcv/imv/imv_session_manager.c, revision 1.1.1.1
1.1 misho 1: /*
2: * Copyright (C) 2014-2015 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 "imv_session_manager.h"
17:
18: #include <tncif_names.h>
19: #include <tncif_identity.h>
20:
21: #include <threading/mutex.h>
22:
23: typedef struct private_imv_session_manager_t private_imv_session_manager_t;
24:
25: /**
26: * Private data of a imv_session_manager_t object.
27: */
28: struct private_imv_session_manager_t {
29:
30: /**
31: * Public imv_session_manager_t interface.
32: */
33: imv_session_manager_t public;
34:
35: /**
36: * Session list
37: */
38: linked_list_t *sessions;
39:
40: /**
41: * mutex used to lock session list
42: */
43: mutex_t *mutex;
44:
45: };
46:
47: METHOD(imv_session_manager_t, add_session, imv_session_t*,
48: private_imv_session_manager_t *this, TNC_ConnectionID conn_id,
49: linked_list_t *ar_identities)
50: {
51: enumerator_t *enumerator;
52: tncif_identity_t *tnc_id;
53: imv_session_t *current, *session = NULL;
54:
55: this->mutex->lock(this->mutex);
56:
57: /* check if a session has already been assigned */
58: enumerator = this->sessions->create_enumerator(this->sessions);
59: while (enumerator->enumerate(enumerator, ¤t))
60: {
61: if (conn_id == current->get_connection_id(current))
62: {
63: session = current;
64: break;
65: }
66: }
67: enumerator->destroy(enumerator);
68:
69: /* session already exists */
70: if (session)
71: {
72: ar_identities->destroy_offset(ar_identities,
73: offsetof(tncif_identity_t, destroy));
74: this->mutex->unlock(this->mutex);
75: return session->get_ref(session);
76: }
77:
78: /* Output list of Access Requestor identities */
79: enumerator = ar_identities->create_enumerator(ar_identities);
80: while (enumerator->enumerate(enumerator, &tnc_id))
81: {
82: pen_type_t id_type, subject_type, auth_type;
83: uint32_t tcg_id_type, tcg_subject_type, tcg_auth_type;
84: chunk_t id_value;
85:
86: id_type = tnc_id->get_identity_type(tnc_id);
87: id_value = tnc_id->get_identity_value(tnc_id);
88: subject_type = tnc_id->get_subject_type(tnc_id);
89: auth_type = tnc_id->get_auth_type(tnc_id);
90:
91: tcg_id_type = (subject_type.vendor_id == PEN_TCG) ?
92: id_type.type : TNC_SUBJECT_UNKNOWN;
93: tcg_subject_type = (subject_type.vendor_id == PEN_TCG) ?
94: subject_type.type : TNC_SUBJECT_UNKNOWN;
95: tcg_auth_type = (auth_type.vendor_id == PEN_TCG) ?
96: auth_type.type : TNC_AUTH_UNKNOWN;
97:
98: DBG2(DBG_IMV, " %N AR identity '%.*s' of type %N authenticated by %N",
99: TNC_Subject_names, tcg_subject_type,
100: id_value.len, id_value.ptr,
101: TNC_Identity_names, tcg_id_type,
102: TNC_Authentication_names, tcg_auth_type);
103: }
104: enumerator->destroy(enumerator);
105:
106: /* create a new session entry */
107: session = imv_session_create(conn_id, ar_identities);
108: this->sessions->insert_last(this->sessions, session);
109:
110: this->mutex->unlock(this->mutex);
111:
112: return session;
113: }
114:
115: METHOD(imv_session_manager_t, remove_session, void,
116: private_imv_session_manager_t *this, imv_session_t *session)
117: {
118: enumerator_t *enumerator;
119: imv_session_t *current;
120:
121: this->mutex->lock(this->mutex);
122: enumerator = this->sessions->create_enumerator(this->sessions);
123: while (enumerator->enumerate(enumerator, ¤t))
124: {
125: if (current == session)
126: {
127: this->sessions->remove_at(this->sessions, enumerator);
128: break;
129: }
130: }
131: enumerator->destroy(enumerator);
132: this->mutex->unlock(this->mutex);
133: }
134:
135: METHOD(imv_session_manager_t, destroy, void,
136: private_imv_session_manager_t *this)
137: {
138: this->sessions->destroy_offset(this->sessions,
139: offsetof(imv_session_t, destroy));
140: this->mutex->destroy(this->mutex);
141: free(this);
142: }
143:
144: /**
145: * See header
146: */
147: imv_session_manager_t *imv_session_manager_create(void)
148: {
149: private_imv_session_manager_t *this;
150:
151: INIT(this,
152: .public = {
153: .add_session = _add_session,
154: .remove_session = _remove_session,
155: .destroy = _destroy,
156: },
157: .sessions = linked_list_create(),
158: .mutex = mutex_create(MUTEX_TYPE_DEFAULT),
159: );
160:
161: return &this->public;
162: }
163:
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