Annotation of embedaddon/strongswan/src/libcharon/sa/ikev1/tasks/isakmp_dpd.c, revision 1.1.1.1
1.1 misho 1: /*
2: * Copyright (C) 2011 Martin Willi
3: * Copyright (C) 2011 revosec AG
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 "isakmp_dpd.h"
17:
18: #include <daemon.h>
19: #include <encoding/payloads/notify_payload.h>
20:
21: typedef struct private_isakmp_dpd_t private_isakmp_dpd_t;
22:
23: /**
24: * Private members of a isakmp_dpd_t task.
25: */
26: struct private_isakmp_dpd_t {
27:
28: /**
29: * Public methods and task_t interface.
30: */
31: isakmp_dpd_t public;
32:
33: /**
34: * Sequence number.
35: */
36: uint32_t seqnr;
37:
38: /**
39: * DPD notify type
40: */
41: notify_type_t type;
42:
43: /**
44: * IKE SA we are serving.
45: */
46: ike_sa_t *ike_sa;
47: };
48:
49: METHOD(task_t, build, status_t,
50: private_isakmp_dpd_t *this, message_t *message)
51: {
52: notify_payload_t *notify;
53: ike_sa_id_t *ike_sa_id;
54: uint64_t spi_i, spi_r;
55: uint32_t seqnr;
56: chunk_t spi;
57:
58: notify = notify_payload_create_from_protocol_and_type(PLV1_NOTIFY,
59: PROTO_IKE, this->type);
60: seqnr = htonl(this->seqnr);
61: ike_sa_id = this->ike_sa->get_id(this->ike_sa);
62: spi_i = ike_sa_id->get_initiator_spi(ike_sa_id);
63: spi_r = ike_sa_id->get_responder_spi(ike_sa_id);
64: spi = chunk_cata("cc", chunk_from_thing(spi_i), chunk_from_thing(spi_r));
65:
66: notify->set_spi_data(notify, spi);
67: notify->set_notification_data(notify, chunk_from_thing(seqnr));
68:
69: message->add_payload(message, (payload_t*)notify);
70:
71: return SUCCESS;
72: }
73:
74: METHOD(task_t, process, status_t,
75: private_isakmp_dpd_t *this, message_t *message)
76: {
77: /* done in task manager */
78: return FAILED;
79: }
80:
81: METHOD(task_t, get_type, task_type_t,
82: private_isakmp_dpd_t *this)
83: {
84: return TASK_ISAKMP_DPD;
85: }
86:
87: METHOD(task_t, migrate, void,
88: private_isakmp_dpd_t *this, ike_sa_t *ike_sa)
89: {
90: this->ike_sa = ike_sa;
91: }
92:
93: METHOD(task_t, destroy, void,
94: private_isakmp_dpd_t *this)
95: {
96: free(this);
97: }
98:
99: /*
100: * Described in header.
101: */
102: isakmp_dpd_t *isakmp_dpd_create(ike_sa_t *ike_sa, notify_type_t type,
103: uint32_t seqnr)
104: {
105: private_isakmp_dpd_t *this;
106:
107: INIT(this,
108: .public = {
109: .task = {
110: .get_type = _get_type,
111: .build = _build,
112: .process = _process,
113: .migrate = _migrate,
114: .destroy = _destroy,
115: },
116: },
117: .ike_sa = ike_sa,
118: .seqnr = seqnr,
119: .type = type,
120: );
121:
122: return &this->public;
123: }
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