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[apple/ipsec.git] / ipsec-tools / racoon / ike_session.h
1 /*
2 * Copyright (c) 2008 Apple Computer, Inc. All rights reserved.
3 *
4 * @APPLE_LICENSE_HEADER_START@
5 *
6 * The contents of this file constitute Original Code as defined in and
7 * are subject to the Apple Public Source License Version 1.1 (the
8 * "License"). You may not use this file except in compliance with the
9 * License. Please obtain a copy of the License at
10 * http://www.apple.com/publicsource and read it before using this file.
11 *
12 * This Original Code and all software distributed under the License are
13 * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
14 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
15 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the
17 * License for the specific language governing rights and limitations
18 * under the License.
19 *
20 * @APPLE_LICENSE_HEADER_END@
21 */
22
23 #ifndef _IKE_SESSION_H
24 #define _IKE_SESSION_H
25
26 #include <stdlib.h>
27 #include <sys/types.h>
28 #include <sys/socket.h>
29 #include <sys/param.h>
30 #include <net/pfkeyv2.h>
31 #include <netinet/in.h>
32 #include <dispatch/dispatch.h>
33 #include "handler.h"
34
35 typedef struct ike_session_id {
36 struct sockaddr_storage local;
37 struct sockaddr_storage remote;
38 } ike_session_id_t;
39
40 typedef struct ike_session_ikev1 {
41 /* list of ph1s */
42 int active_ph1cnt;
43 int ph1cnt; /* the number which is negotiated for this session */
44 /* list of ph2s */
45 int active_ph2cnt;
46 int ph2cnt; /* the number which is negotiated for this session */
47 } ike_session_ikev1_t;
48
49 typedef struct ike_session_sastats {
50 int interv_mon;
51 int interv_idle;
52 int dir_idle;
53 schedule_ref sc_mon;
54 schedule_ref sc_idle;
55
56 u_int32_t num_in_curr_req;
57 u_int32_t num_in_last_poll;
58 struct sastat in_curr_req[8];
59 struct sastat in_last_poll[8];
60
61 u_int32_t num_out_curr_req;
62 u_int32_t num_out_last_poll;
63 struct sastat out_curr_req[8];
64 struct sastat out_last_poll[8];
65 } ike_sesssion_sastats_t;
66
67 struct ike_session {
68 u_int8_t mode; /* mode of protocol, see ipsec.h */
69 u_int16_t proto; /* IPPROTO_ESP or IPPROTO_AH */
70
71 ike_session_id_t session_id;
72
73 int established:1;
74 int ports_floated:1;
75 int is_cisco_ipsec:1;
76 int is_l2tpvpn_ipsec:1;
77 int is_btmm_ipsec:1;
78 int stopped_by_vpn_controller:1;
79 int peer_sent_data_sc_dpd:1;
80 int peer_sent_data_sc_idle:1;
81 int i_sent_data_sc_dpd:1;
82 int i_sent_data_sc_idle:1;
83 int is_client:1;
84 time_t last_time_data_sc_detected;
85 int controller_awaiting_peer_resp:1;
86 int is_dying:1;
87 int is_asserted:1;
88 u_int32_t natt_flags;
89 u_int32_t natt_version;
90 char *term_reason;
91
92 struct timeval start_timestamp;
93 struct timeval estab_timestamp;
94 struct timeval stop_timestamp;
95 ike_session_ikev1_t ikev1_state;
96
97 ike_sesssion_sastats_t traffic_monitor;
98 schedule_ref sc_idle;
99 schedule_ref sc_xauth;
100
101 LIST_HEAD(_ph1tree_, phase1handle) ph1tree;
102 LIST_HEAD(_ph2tree_, phase2handle) ph2tree;
103
104 LIST_ENTRY(ike_session) chain;
105 };
106
107 typedef enum ike_session_rekey_type {
108 IKE_SESSION_REKEY_TYPE_NONE = 0,
109 IKE_SESSION_REKEY_TYPE_PH1,
110 IKE_SESSION_REKEY_TYPE_PH2,
111 } ike_session_rekey_type_t;
112
113 extern const char * ike_session_stopped_by_vpn_disconnect;
114 extern const char * ike_session_stopped_by_controller_comm_lost;
115 extern const char * ike_session_stopped_by_flush;
116 extern const char * ike_session_stopped_by_sleepwake;
117 extern const char * ike_session_stopped_by_assert;
118 extern const char * ike_session_stopped_by_peer;
119
120 extern void ike_session_init (void);
121 extern ike_session_t * ike_session_create_session (ike_session_id_t *session_id);
122 extern void ike_session_release_session (ike_session_t *session);
123 extern ike_session_t * ike_session_get_session (struct sockaddr_storage *, struct sockaddr_storage *, int, isakmp_index *);
124 extern u_int ike_session_get_rekey_lifetime (int, u_int);
125 extern void ike_session_update_mode (phase2_handle_t *iph2);
126 extern int ike_session_link_phase1 (ike_session_t *, phase1_handle_t *);
127 extern int ike_session_link_phase2 (ike_session_t *, phase2_handle_t *);
128 extern int ike_session_link_ph2_to_ph1 (phase1_handle_t *, phase2_handle_t *);
129 extern int ike_session_unlink_phase1 (phase1_handle_t *);
130 extern int ike_session_unlink_phase2 (phase2_handle_t *);
131 extern int ike_session_has_other_established_ph1 (ike_session_t *, phase1_handle_t *);
132 extern int ike_session_has_other_negoing_ph1 (ike_session_t *, phase1_handle_t *);
133 extern int ike_session_has_other_established_ph2 (ike_session_t *, phase2_handle_t *);
134 extern int ike_session_has_other_negoing_ph2 (ike_session_t *, phase2_handle_t *);
135 extern phase1_handle_t * ike_session_update_ph1_ph2tree (phase1_handle_t *);
136 extern phase1_handle_t * ike_session_update_ph2_ph1bind (phase2_handle_t *);
137 extern void ike_session_ikev1_float_ports (phase1_handle_t *);
138 extern void ike_session_ph2_established (phase2_handle_t *);
139 extern void ike_session_replace_other_ph1 (phase1_handle_t *, phase1_handle_t *);
140 extern void ike_session_cleanup_other_established_ph1s (ike_session_t *, phase1_handle_t *);
141 extern void ike_session_cleanup_other_established_ph2s (ike_session_t *, phase2_handle_t *);
142 extern void ike_session_stopped_by_controller (ike_session_t *, const char *);
143 extern void ike_sessions_stopped_by_controller (struct sockaddr_storage *, int, const char *);
144 extern void ike_session_purge_ph2s_by_ph1 (phase1_handle_t *);
145 extern void ike_session_purge_ph1s_by_session (ike_session_t *session);
146 extern phase1_handle_t * ike_session_get_established_ph1 (ike_session_t *);
147 extern phase1_handle_t * ike_session_get_established_or_negoing_ph1 (ike_session_t *);
148 extern void ike_session_update_ph2_ports (phase2_handle_t *);
149 extern u_int32_t ike_session_get_sas_for_stats (ike_session_t *, u_int8_t, u_int32_t *, struct sastat *, u_int32_t);
150 extern void ike_session_update_traffic_idle_status (ike_session_t *, u_int32_t, struct sastat *, u_int32_t);
151 extern void ike_session_cleanup (ike_session_t *, const char *);
152 extern int ike_session_has_negoing_ph1 (ike_session_t *);
153 extern int ike_session_has_established_ph1 (ike_session_t *);
154 extern int ike_session_has_negoing_ph2 (ike_session_t *);
155 extern int ike_session_has_established_ph2 (ike_session_t *);
156 extern void ike_session_cleanup_ph1s_by_ph2 (phase2_handle_t *);
157 extern int ike_session_is_client_ph2_rekey (phase2_handle_t *);
158 extern int ike_session_is_client_ph1_rekey (phase1_handle_t *);
159 extern int ike_session_is_client_ph1 (phase1_handle_t *);
160 extern int ike_session_is_client_ph2 (phase2_handle_t *);
161 extern void ike_session_start_xauth_timer (phase1_handle_t *);
162 extern void ike_session_stop_xauth_timer (phase1_handle_t *);
163 extern int ike_session_get_sainfo_r (phase2_handle_t *);
164 extern int ike_session_get_proposal_r (phase2_handle_t *);
165 extern void ike_session_update_natt_version (phase1_handle_t *);
166 extern int ike_session_get_natt_version (phase1_handle_t *);
167 extern int ike_session_drop_rekey (ike_session_t *, ike_session_rekey_type_t);
168 extern void ike_session_sweep_sleepwake (void);
169 extern int ike_session_assert (struct sockaddr_storage *, struct sockaddr_storage *);
170 extern int ike_session_assert_session (ike_session_t *);
171 extern void ike_session_unbindph12(phase2_handle_t *);
172 extern void ike_session_ph2_retransmits (phase2_handle_t *);
173 extern void ike_session_ph1_retransmits (phase1_handle_t *);
174
175 #endif /* _IKE_SESSION_H */
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