xref: /illumos-gate/usr/src/uts/common/inet/spdsock.h (revision 2654012f83cec5dc15b61dfe3e4a4915f186e7a6)
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 #pragma ident	"%Z%%M%	%I%	%E% SMI"
30 
31 #include <sys/netstack.h>
32 
33 #ifdef	__cplusplus
34 extern "C" {
35 #endif
36 
37 /*
38  * SPDSOCK stack instances
39  */
40 struct spd_stack {
41 	netstack_t		*spds_netstack;	/* Common netstack */
42 
43 	caddr_t			spds_g_nd;
44 	struct spdsockparam_s	*spds_params;
45 	kmutex_t		spds_param_lock;
46 				/* Protects the NDD variables. */
47 
48 	/*
49 	 * To save algorithm update messages that are processed only after
50 	 * IPsec is loaded.
51 	 */
52 	struct spd_ext		*spds_extv_algs[SPD_EXT_MAX + 1];
53 	mblk_t			*spds_mp_algs;
54 	boolean_t		spds_algs_pending;
55 	struct ipsec_alginfo
56 			*spds_algs[IPSEC_NALGTYPES][IPSEC_MAX_ALGS];
57 	int		spds_algs_exec_mode[IPSEC_NALGTYPES];
58 	kmutex_t		spds_alg_lock;
59 };
60 typedef struct spd_stack spd_stack_t;
61 
62 
63 /*
64  * spdsock (PF_POLICY) session state; one per open PF_POLICY socket.
65  *
66  * These are kept on a linked list by the spdsock module.
67  */
68 
69 typedef struct spdsock_s
70 {
71 	uint_t	spdsock_state;	/* TLI gorp */
72 
73 	minor_t spdsock_minor;
74 
75 	/*
76 	 * In-progress SPD_DUMP state, valid if spdsock_dump_req is non-NULL.
77 	 *
78 	 * spdsock_dump_req is the request which got us started.
79 	 * spdsock_dump_head is a reference to a policy head.
80 	 * spdsock_dump_cur_* tell us where we are in the policy walk,
81 	 * validated by looking at spdsock_dump_gen vs
82 	 * dump_head->iph_gen after taking a read lock on the policy
83 	 * head.
84 	 */
85 	mblk_t			*spdsock_dump_req;
86 	ipsec_policy_head_t 	*spdsock_dump_head;
87 	uint64_t 		spdsock_dump_gen;
88 	timeout_id_t		spdsock_timeout;
89 	mblk_t			*spdsock_timeout_arg;
90 	int			spdsock_dump_cur_type;
91 	int			spdsock_dump_cur_af;
92 	ipsec_policy_t 		*spdsock_dump_cur_rule;
93 	uint32_t		spdsock_dump_cur_chain;
94 	uint32_t		spdsock_dump_count;
95 	spd_stack_t		*spdsock_spds;
96 	/* These are used for all-polhead dumps. */
97 	int			spdsock_dump_tun_gen;
98 	boolean_t		spdsock_dump_active;
99 	boolean_t		spdsock_dump_tunnel;
100 	int			spdsock_dump_remaining_polheads;
101 	ipsec_tun_pol_t		*spdsock_itp;
102 } spdsock_t;
103 
104 #define	LOADCHECK_INTERVAL	(drv_usectohz(30000))
105 
106 /*
107  * Socket option boilerplate code.
108  */
109 
110 extern optdb_obj_t	spdsock_opt_obj;
111 extern uint_t		spdsock_max_optsize;
112 
113 extern int spdsock_opt_get(queue_t *, int, int, uchar_t *);
114 extern int spdsock_opt_set(queue_t *, uint_t, int, int, uint_t, uchar_t *,
115     uint_t *, uchar_t *, void *, cred_t *,
116     mblk_t *);
117 
118 #ifdef	__cplusplus
119 }
120 #endif
121 
122 #endif /* _INET_SPDSOCK_H */
123