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 2009 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 34 extern "C" { 35 #endif 36 37 /* SCTP kstat */ 38 typedef 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 */ 72 struct 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 uint16_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 /* Only modified during _init and _fini thus no locking is needed. */ 95 caddr_t sctps_g_nd; 96 struct sctpparam_s *sctps_params; 97 struct sctpparam_s *sctps_wroff_xtra_param; 98 99 /* This lock protects the SCTP recvq_tq_list array and recvq_tq_list_cur_sz. */ 100 kmutex_t sctps_rq_tq_lock; 101 int sctps_recvq_tq_list_max_sz; 102 taskq_t **sctps_recvq_tq_list; 103 104 /* Current number of recvq taskq. At least 1 for the default taskq. */ 105 uint32_t sctps_recvq_tq_list_cur_sz; 106 uint32_t sctps_recvq_tq_list_cur; 107 108 /* Global list of SCTP ILLs */ 109 struct sctp_ill_hash_s *sctps_g_ills; 110 uint32_t sctps_ills_count; 111 krwlock_t sctps_g_ills_lock; 112 113 /* Global list of SCTP IPIFs */ 114 struct sctp_ipif_hash_s *sctps_g_ipifs; 115 uint32_t sctps_g_ipifs_count; 116 krwlock_t sctps_g_ipifs_lock; 117 118 /* kstat exporting sctp_mib data */ 119 kstat_t *sctps_mibkp; 120 kstat_t *sctps_kstat; 121 sctp_kstat_t sctps_statistics; 122 }; 123 typedef struct sctp_stack sctp_stack_t; 124 125 #ifdef __cplusplus 126 } 127 #endif 128 129 #endif /* _INET_SCTP_SCTP_STACK_H */ 130