sctp_stack.h revision 12016:0248e987199b 
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/*
23 * Copyright 2010 Sun Microsystems, Inc.  All rights reserved.
24 * Use is subject to license terms.
25 */
26
27#ifndef	_INET_SCTP_SCTP_STACK_H
28#define	_INET_SCTP_SCTP_STACK_H
29
30#include <sys/netstack.h>
31#include <sys/taskq.h>
32
33#ifdef	__cplusplus
34extern "C" {
35#endif
36
37/* SCTP kstat */
38typedef struct sctp_kstat_s {
39	kstat_named_t	sctp_add_faddr;
40	kstat_named_t	sctp_add_timer;
41	kstat_named_t	sctp_conn_create;
42	kstat_named_t	sctp_find_next_tq;
43	kstat_named_t	sctp_fr_add_hdr;
44	kstat_named_t	sctp_fr_not_found;
45	kstat_named_t	sctp_output_failed;
46	kstat_named_t	sctp_rexmit_failed;
47	kstat_named_t	sctp_send_init_failed;
48	kstat_named_t	sctp_send_cookie_failed;
49	kstat_named_t	sctp_send_cookie_ack_failed;
50	kstat_named_t	sctp_send_err_failed;
51	kstat_named_t	sctp_send_sack_failed;
52	kstat_named_t	sctp_send_shutdown_failed;
53	kstat_named_t	sctp_send_shutdown_ack_failed;
54	kstat_named_t	sctp_send_shutdown_comp_failed;
55	kstat_named_t	sctp_send_user_abort_failed;
56	kstat_named_t	sctp_send_asconf_failed;
57	kstat_named_t	sctp_send_asconf_ack_failed;
58	kstat_named_t	sctp_send_ftsn_failed;
59	kstat_named_t	sctp_send_hb_failed;
60	kstat_named_t	sctp_return_hb_failed;
61	kstat_named_t	sctp_ss_rexmit_failed;
62	kstat_named_t	sctp_cl_connect;
63	kstat_named_t	sctp_cl_assoc_change;
64	kstat_named_t	sctp_cl_check_addrs;
65} sctp_kstat_t;
66
67#define	SCTP_KSTAT(sctps, x)	((sctps)->sctps_statistics.x.value.ui64++)
68
69/*
70 * SCTP stack instances
71 */
72struct sctp_stack {
73	netstack_t	*sctps_netstack;	/* Common netstack */
74
75	mib2_sctp_t		sctps_mib;
76
77	/* Protected by sctps_g_lock */
78	struct list	sctps_g_list;	/* SCTP instance data chain */
79	kmutex_t	sctps_g_lock;
80
81#define	SCTP_NUM_EPRIV_PORTS	64
82	int		sctps_g_num_epriv_ports;
83	in_port_t	sctps_g_epriv_ports[SCTP_NUM_EPRIV_PORTS];
84	kmutex_t	sctps_epriv_port_lock;
85	uint_t		sctps_next_port_to_try;
86
87	/* SCTP bind hash list - all sctp_t with state >= BOUND. */
88	struct sctp_tf_s	*sctps_bind_fanout;
89	/* SCTP listen hash list - all sctp_t with state == LISTEN. */
90	struct sctp_tf_s	*sctps_listen_fanout;
91	struct sctp_tf_s	*sctps_conn_fanout;
92	uint_t			sctps_conn_hash_size;
93
94	/* holds sctp tunables */
95	struct mod_prop_info_s	*sctps_propinfo_tbl;
96
97/* This lock protects the SCTP recvq_tq_list array and recvq_tq_list_cur_sz. */
98	kmutex_t		sctps_rq_tq_lock;
99	int			sctps_recvq_tq_list_max_sz;
100	taskq_t			**sctps_recvq_tq_list;
101
102	/* Current number of recvq taskq.  At least 1 for the default taskq. */
103	uint32_t		sctps_recvq_tq_list_cur_sz;
104	uint32_t		sctps_recvq_tq_list_cur;
105
106	/* Global list of SCTP ILLs */
107	struct sctp_ill_hash_s	*sctps_g_ills;
108	uint32_t		sctps_ills_count;
109	krwlock_t		sctps_g_ills_lock;
110
111	/* Global list of SCTP IPIFs */
112	struct sctp_ipif_hash_s	*sctps_g_ipifs;
113	uint32_t		sctps_g_ipifs_count;
114	krwlock_t		sctps_g_ipifs_lock;
115
116	/* kstat exporting sctp_mib data */
117	kstat_t			*sctps_mibkp;
118	kstat_t			*sctps_kstat;
119	sctp_kstat_t		sctps_statistics;
120};
121typedef struct sctp_stack sctp_stack_t;
122
123#ifdef	__cplusplus
124}
125#endif
126
127#endif	/* _INET_SCTP_SCTP_STACK_H */
128