Annotation of embedaddon/strongswan/src/libcharon/sa/ikev2/tasks/ike_mobike.h, revision 1.1.1.1
1.1 misho 1: /*
2: * Copyright (C) 2007 Martin Willi
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 ike_mobike ike_mobike
18: * @{ @ingroup tasks_v2
19: */
20:
21: #ifndef IKE_MOBIKE_H_
22: #define IKE_MOBIKE_H_
23:
24: typedef struct ike_mobike_t ike_mobike_t;
25:
26: #include <library.h>
27: #include <sa/ike_sa.h>
28: #include <sa/task.h>
29: #include <networking/packet.h>
30:
31: /**
32: * Task of type ike_mobike, detects and handles MOBIKE extension.
33: *
34: * The MOBIKE extension is defined in RFC4555. It allows to update IKE
35: * and IPsec tunnel addresses.
36: * This tasks handles the MOBIKE_SUPPORTED notify exchange to detect MOBIKE
37: * support, allows the exchange of ADDITIONAL_*_ADDRESS to exchange additional
38: * endpoints and handles the UPDATE_SA_ADDRESS notify to finally update
39: * endpoints.
40: */
41: struct ike_mobike_t {
42:
43: /**
44: * Implements the task_t interface
45: */
46: task_t task;
47:
48: /**
49: * Use the task to update the list of additional addresses.
50: */
51: void (*addresses)(ike_mobike_t *this);
52:
53: /**
54: * Use the task to roam to other addresses.
55: *
56: * @param address TRUE to include address list update
57: */
58: void (*roam)(ike_mobike_t *this, bool address);
59:
60: /**
61: * Use the task for a DPD check which detects changes in NAT mappings.
62: */
63: void (*dpd)(ike_mobike_t *this);
64:
65: /**
66: * Transmission hook, called by task manager.
67: *
68: * The task manager calls this hook whenever it transmits a packet. It
69: * allows the mobike task to send the packet on multiple paths to do path
70: * probing.
71: *
72: * @param packet the packet to transmit
73: * @return TRUE if transmitted, FALSE if no path found
74: */
75: bool (*transmit)(ike_mobike_t *this, packet_t *packet);
76:
77: /**
78: * Check if this task is probing for routability.
79: *
80: * @return TRUE if task is probing
81: */
82: bool (*is_probing)(ike_mobike_t *this);
83:
84: /**
85: * Enable probing for routability.
86: */
87: void (*enable_probing)(ike_mobike_t *this);
88: };
89:
90: /**
91: * Create a new ike_mobike task.
92: *
93: * @param ike_sa IKE_SA this task works for
94: * @param initiator TRUE if task is initiated by us
95: * @return ike_mobike task to handle by the task_manager
96: */
97: ike_mobike_t *ike_mobike_create(ike_sa_t *ike_sa, bool initiator);
98:
99: #endif /** IKE_MOBIKE_H_ @}*/
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