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 2007 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 #pragma ident "%Z%%M% %I% %E% SMI" 31 32 #include <sys/netstack.h> 33 34 #ifdef __cplusplus 35 extern "C" { 36 #endif 37 38 /* SCTP kstat */ 39 typedef struct sctp_kstat_s { 40 kstat_named_t sctp_add_faddr; 41 kstat_named_t sctp_add_timer; 42 kstat_named_t sctp_conn_create; 43 kstat_named_t sctp_find_next_tq; 44 kstat_named_t sctp_fr_add_hdr; 45 kstat_named_t sctp_fr_not_found; 46 kstat_named_t sctp_output_failed; 47 kstat_named_t sctp_rexmit_failed; 48 kstat_named_t sctp_send_init_failed; 49 kstat_named_t sctp_send_cookie_failed; 50 kstat_named_t sctp_send_cookie_ack_failed; 51 kstat_named_t sctp_send_err_failed; 52 kstat_named_t sctp_send_sack_failed; 53 kstat_named_t sctp_send_shutdown_failed; 54 kstat_named_t sctp_send_shutdown_ack_failed; 55 kstat_named_t sctp_send_shutdown_comp_failed; 56 kstat_named_t sctp_send_user_abort_failed; 57 kstat_named_t sctp_send_asconf_failed; 58 kstat_named_t sctp_send_asconf_ack_failed; 59 kstat_named_t sctp_send_ftsn_failed; 60 kstat_named_t sctp_send_hb_failed; 61 kstat_named_t sctp_return_hb_failed; 62 kstat_named_t sctp_ss_rexmit_failed; 63 kstat_named_t sctp_cl_connect; 64 kstat_named_t sctp_cl_assoc_change; 65 kstat_named_t sctp_cl_check_addrs; 66 } sctp_kstat_t; 67 68 #define SCTP_KSTAT(sctps, x) ((sctps)->sctps_statistics.x.value.ui64++) 69 70 /* 71 * SCTP stack instances 72 */ 73 struct sctp_stack { 74 netstack_t *sctps_netstack; /* Common netstack */ 75 76 mib2_sctp_t sctps_mib; 77 78 /* Protected by sctps_g_q_lock */ 79 queue_t *sctps_g_q; 80 uint_t sctps_g_q_ref; /* Number of sctp_t's that use it */ 81 kmutex_t sctps_g_q_lock; 82 kcondvar_t sctps_g_q_cv; 83 kthread_t *sctps_g_q_creator; 84 struct __ldi_handle *sctps_g_q_lh; 85 cred_t *sctps_g_q_cr; /* For _inactive close call */ 86 /* The default sctp_t for responding out of the blue packets. */ 87 struct sctp_s *sctps_gsctp; 88 89 /* Protected by sctps_g_lock */ 90 struct list sctps_g_list; /* SCTP instance data chain */ 91 kmutex_t sctps_g_lock; 92 93 #define SCTP_NUM_EPRIV_PORTS 64 94 int sctps_g_num_epriv_ports; 95 uint16_t sctps_g_epriv_ports[SCTP_NUM_EPRIV_PORTS]; 96 kmutex_t sctps_epriv_port_lock; 97 uint_t sctps_next_port_to_try; 98 99 mblk_t *sctps_pad_mp; /* pad unaligned data chunks */ 100 101 /* SCTP bind hash list - all sctp_t with state >= BOUND. */ 102 struct sctp_tf_s *sctps_bind_fanout; 103 /* SCTP listen hash list - all sctp_t with state == LISTEN. */ 104 struct sctp_tf_s *sctps_listen_fanout; 105 struct sctp_tf_s *sctps_conn_fanout; 106 uint_t sctps_conn_hash_size; 107 108 /* Only modified during _init and _fini thus no locking is needed. */ 109 caddr_t sctps_g_nd; 110 struct sctpparam_s *sctps_params; 111 struct sctpparam_s *sctps_wroff_xtra_param; 112 113 /* This lock protects the SCTP recvq_tq_list array and recvq_tq_list_cur_sz. */ 114 kmutex_t sctps_rq_tq_lock; 115 int sctps_recvq_tq_list_max_sz; 116 taskq_t **sctps_recvq_tq_list; 117 118 /* Current number of recvq taskq. At least 1 for the default taskq. */ 119 uint32_t sctps_recvq_tq_list_cur_sz; 120 uint32_t sctps_recvq_tq_list_cur; 121 122 /* Global list of SCTP ILLs */ 123 struct sctp_ill_hash_s *sctps_g_ills; 124 uint32_t sctps_ills_count; 125 krwlock_t sctps_g_ills_lock; 126 127 /* Global list of SCTP IPIFs */ 128 struct sctp_ipif_hash_s *sctps_g_ipifs; 129 uint32_t sctps_g_ipifs_count; 130 krwlock_t sctps_g_ipifs_lock; 131 132 /* kstat exporting sctp_mib data */ 133 kstat_t *sctps_mibkp; 134 kstat_t *sctps_kstat; 135 sctp_kstat_t sctps_statistics; 136 }; 137 typedef struct sctp_stack sctp_stack_t; 138 139 #ifdef __cplusplus 140 } 141 #endif 142 143 #endif /* _INET_SCTP_SCTP_STACK_H */ 144