xref: /titanic_52/usr/src/uts/common/inet/spdsock.h (revision f5fc5c043551e3eab595da7d8b5a53479207738f)
1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License (the "License").
6  * You may not use this file except in compliance with the License.
7  *
8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9  * or http://www.opensolaris.org/os/licensing.
10  * See the License for the specific language governing permissions
11  * and limitations under the License.
12  *
13  * When distributing Covered Code, include this CDDL HEADER in each
14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15  * If applicable, add the following below this CDDL HEADER, with the
16  * fields enclosed by brackets "[]" replaced with your own identifying
17  * information: Portions Copyright [yyyy] [name of copyright owner]
18  *
19  * CDDL HEADER END
20  */
21 /*
22  * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
23  * Use is subject to license terms.
24  */
25 
26 #ifndef	_INET_SPDSOCK_H
27 #define	_INET_SPDSOCK_H
28 
29 #include <sys/netstack.h>
30 
31 #ifdef	__cplusplus
32 extern "C" {
33 #endif
34 
35 /*
36  * SPDSOCK stack instances
37  */
38 struct spd_stack {
39 	netstack_t		*spds_netstack;	/* Common netstack */
40 
41 	caddr_t			spds_g_nd;
42 	struct spdsockparam_s	*spds_params;
43 	kmutex_t		spds_param_lock;
44 				/* Protects the NDD variables. */
45 
46 	/*
47 	 * To save algorithm update messages that are processed only after
48 	 * IPsec is loaded.
49 	 */
50 	struct spd_ext		*spds_extv_algs[SPD_EXT_MAX + 1];
51 	mblk_t			*spds_mp_algs;
52 	boolean_t		spds_algs_pending;
53 	struct ipsec_alginfo
54 			*spds_algs[IPSEC_NALGTYPES][IPSEC_MAX_ALGS];
55 	int		spds_algs_exec_mode[IPSEC_NALGTYPES];
56 	kmutex_t		spds_alg_lock;
57 };
58 typedef struct spd_stack spd_stack_t;
59 
60 
61 /*
62  * spdsock (PF_POLICY) session state; one per open PF_POLICY socket.
63  *
64  * These are kept on a linked list by the spdsock module.
65  */
66 
67 typedef struct spdsock_s
68 {
69 	uint_t	spdsock_state;	/* TLI gorp */
70 
71 	minor_t spdsock_minor;
72 
73 	/*
74 	 * In-progress SPD_DUMP state, valid if spdsock_dump_req is non-NULL.
75 	 *
76 	 * spdsock_dump_req is the request which got us started.
77 	 * spdsock_dump_head is a reference to a policy head.
78 	 * spdsock_dump_cur_* tell us where we are in the policy walk,
79 	 * validated by looking at spdsock_dump_gen vs
80 	 * dump_head->iph_gen after taking a read lock on the policy
81 	 * head.
82 	 */
83 	mblk_t			*spdsock_dump_req;
84 	ipsec_policy_head_t 	*spdsock_dump_head;
85 	uint64_t 		spdsock_dump_gen;
86 	timeout_id_t		spdsock_timeout;
87 	mblk_t			*spdsock_timeout_arg;
88 	int			spdsock_dump_cur_type;
89 	int			spdsock_dump_cur_af;
90 	ipsec_policy_t 		*spdsock_dump_cur_rule;
91 	uint32_t		spdsock_dump_cur_chain;
92 	uint32_t		spdsock_dump_count;
93 	spd_stack_t		*spdsock_spds;
94 	/* These are used for all-polhead dumps. */
95 	int			spdsock_dump_tun_gen;
96 	boolean_t		spdsock_dump_active;
97 	boolean_t		spdsock_dump_tunnel;
98 	int			spdsock_dump_remaining_polheads;
99 	ipsec_tun_pol_t		*spdsock_itp;
100 } spdsock_t;
101 
102 #define	LOADCHECK_INTERVAL	(drv_usectohz(30000))
103 
104 /*
105  * Socket option boilerplate code.
106  */
107 
108 extern optdb_obj_t	spdsock_opt_obj;
109 extern uint_t		spdsock_max_optsize;
110 
111 extern int spdsock_opt_get(queue_t *, int, int, uchar_t *);
112 extern int spdsock_opt_set(queue_t *, uint_t, int, int, uint_t, uchar_t *,
113     uint_t *, uchar_t *, void *, cred_t *, mblk_t *);
114 
115 #ifdef	__cplusplus
116 }
117 #endif
118 
119 #endif /* _INET_SPDSOCK_H */
120