17c478bd9Sstevel@tonic-gate /* 27c478bd9Sstevel@tonic-gate * CDDL HEADER START 37c478bd9Sstevel@tonic-gate * 47c478bd9Sstevel@tonic-gate * The contents of this file are subject to the terms of the 5f4b3ec61Sdh * Common Development and Distribution License (the "License"). 6f4b3ec61Sdh * You may not use this file except in compliance with the License. 77c478bd9Sstevel@tonic-gate * 87c478bd9Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 97c478bd9Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 107c478bd9Sstevel@tonic-gate * See the License for the specific language governing permissions 117c478bd9Sstevel@tonic-gate * and limitations under the License. 127c478bd9Sstevel@tonic-gate * 137c478bd9Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 147c478bd9Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 157c478bd9Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 167c478bd9Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 177c478bd9Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 187c478bd9Sstevel@tonic-gate * 197c478bd9Sstevel@tonic-gate * CDDL HEADER END 207c478bd9Sstevel@tonic-gate */ 217c478bd9Sstevel@tonic-gate /* 22bd670b35SErik Nordmark * Copyright 2009 Sun Microsystems, Inc. All rights reserved. 237c478bd9Sstevel@tonic-gate * Use is subject to license terms. 247c478bd9Sstevel@tonic-gate */ 257c478bd9Sstevel@tonic-gate 267c478bd9Sstevel@tonic-gate #ifndef _SCTP_ADDR_H 277c478bd9Sstevel@tonic-gate #define _SCTP_ADDR_H 287c478bd9Sstevel@tonic-gate 297c478bd9Sstevel@tonic-gate #include <sys/list.h> 307c478bd9Sstevel@tonic-gate #include <sys/zone.h> 317c478bd9Sstevel@tonic-gate #include <inet/ip.h> 327c478bd9Sstevel@tonic-gate 337c478bd9Sstevel@tonic-gate #ifdef __cplusplus 347c478bd9Sstevel@tonic-gate extern "C" { 357c478bd9Sstevel@tonic-gate #endif 367c478bd9Sstevel@tonic-gate 377c478bd9Sstevel@tonic-gate /* 387c478bd9Sstevel@tonic-gate * SCTP IPIF structure - only relevant fields from ipif_t retained 397c478bd9Sstevel@tonic-gate * 407c478bd9Sstevel@tonic-gate * There is a global array, sctp_g_ipifs, to store all addresses of 417c478bd9Sstevel@tonic-gate * the system. Each element of the global array is a list of 427c478bd9Sstevel@tonic-gate * sctp_ipif_t. 437c478bd9Sstevel@tonic-gate * 447c478bd9Sstevel@tonic-gate * This structure is also shared by all SCTP PCBs. Each SCTP PCB has 457c478bd9Sstevel@tonic-gate * an array of source addresses. Each element of that array is a list 467c478bd9Sstevel@tonic-gate * of sctp_saddr_ipif_t. And each sctp_saddr_ipif_t has a pointer 477c478bd9Sstevel@tonic-gate * to a sctp_ipif_t. The reason for sctp_saddr_ipif_t is that each 487c478bd9Sstevel@tonic-gate * SCTP PCB may do different things to a source address. This info 497c478bd9Sstevel@tonic-gate * is stored locally in sctp_saddr_ipif_t. 507c478bd9Sstevel@tonic-gate * 517c478bd9Sstevel@tonic-gate */ 527c478bd9Sstevel@tonic-gate typedef struct sctp_ipif_s { 537c478bd9Sstevel@tonic-gate list_node_t sctp_ipifs; /* Used by the global list */ 547c478bd9Sstevel@tonic-gate struct sctp_ill_s *sctp_ipif_ill; 557c478bd9Sstevel@tonic-gate uint_t sctp_ipif_id; 567c478bd9Sstevel@tonic-gate in6_addr_t sctp_ipif_saddr; 577c478bd9Sstevel@tonic-gate int sctp_ipif_state; 587c478bd9Sstevel@tonic-gate uint32_t sctp_ipif_refcnt; 597c478bd9Sstevel@tonic-gate zoneid_t sctp_ipif_zoneid; 607c478bd9Sstevel@tonic-gate krwlock_t sctp_ipif_lock; 617c478bd9Sstevel@tonic-gate boolean_t sctp_ipif_isv6; 62f551bb10Svi uint64_t sctp_ipif_flags; 637c478bd9Sstevel@tonic-gate } sctp_ipif_t; 647c478bd9Sstevel@tonic-gate 657c478bd9Sstevel@tonic-gate /* ipif_state */ 667c478bd9Sstevel@tonic-gate #define SCTP_IPIFS_CONDEMNED -1 677c478bd9Sstevel@tonic-gate #define SCTP_IPIFS_INVALID -2 687c478bd9Sstevel@tonic-gate #define SCTP_IPIFS_DOWN 1 697c478bd9Sstevel@tonic-gate #define SCTP_IPIFS_UP 2 707c478bd9Sstevel@tonic-gate 71df19b344Svi /* 72df19b344Svi * Individual SCTP source address structure. 73df19b344Svi * saddr_ipifp is the actual pointer to the ipif/address. 74df19b344Svi * saddr_ipif_dontsrc is used to mark an address as currently unusable. This 75df19b344Svi * would be the case when we have added/deleted an address using sctp_bindx() 76df19b344Svi * and are waiting for the ASCONF ACK from the peer to confirm the addition/ 77df19b344Svi * deletion. Additionally, saddr_ipif_delete_pending is used to specifically 78df19b344Svi * indicate that an address delete operation is in progress. 79df19b344Svi */ 807c478bd9Sstevel@tonic-gate typedef struct sctp_saddrs_ipif_s { 817c478bd9Sstevel@tonic-gate list_node_t saddr_ipif; 827c478bd9Sstevel@tonic-gate sctp_ipif_t *saddr_ipifp; 837c478bd9Sstevel@tonic-gate uint32_t saddr_ipif_dontsrc : 1, 847c478bd9Sstevel@tonic-gate saddr_ipif_delete_pending : 1, 85f551bb10Svi saddr_ipif_unconfirmed : 1, 86f551bb10Svi pad : 29; 877c478bd9Sstevel@tonic-gate } sctp_saddr_ipif_t; 887c478bd9Sstevel@tonic-gate 89f551bb10Svi #define SCTP_DONT_SRC(sctp_saddr) \ 90f551bb10Svi ((sctp_saddr)->saddr_ipif_dontsrc || \ 91f551bb10Svi (sctp_saddr)->saddr_ipif_unconfirmed) 92f551bb10Svi 93f551bb10Svi 94df19b344Svi /* 95df19b344Svi * SCTP ILL structure - only relevant fields from ill_t retained. 96df19b344Svi * This pretty much reflects the ILL<->IPIF relation that IP maintains. 97df19b344Svi * At present the only state an ILL can be in is CONDEMNED or not. 98df19b344Svi * sctp_ill_ipifcnt gives the number of IPIFs for this ILL, 99df19b344Svi * sctp_ill_index is phyint_ifindex in the actual ILL structure (in IP) 100df19b344Svi * and sctp_ill_flags is ill_flags from the ILL structure. 101f4b3ec61Sdh * 102f4b3ec61Sdh * The comment below (and for other netstack_t references) refers 103f4b3ec61Sdh * to the fact that we only do netstack_hold in particular cases, 104f4b3ec61Sdh * such as the references from open streams (ill_t and conn_t's 105f4b3ec61Sdh * pointers). Internally within IP we rely on IP's ability to cleanup e.g. 106f4b3ec61Sdh * ire_t's when an ill goes away. 107df19b344Svi */ 1087c478bd9Sstevel@tonic-gate typedef struct sctp_ill_s { 109f4b3ec61Sdh list_node_t sctp_ills; 110f4b3ec61Sdh int sctp_ill_name_length; 111f4b3ec61Sdh char *sctp_ill_name; 112f4b3ec61Sdh int sctp_ill_state; 113f4b3ec61Sdh uint32_t sctp_ill_ipifcnt; 114f4b3ec61Sdh uint_t sctp_ill_index; 115f4b3ec61Sdh uint64_t sctp_ill_flags; 1161d19ca10Svi boolean_t sctp_ill_isv6; 117f4b3ec61Sdh netstack_t *sctp_ill_netstack; /* Does not have a netstack_hold */ 1187c478bd9Sstevel@tonic-gate } sctp_ill_t; 1197c478bd9Sstevel@tonic-gate 1207c478bd9Sstevel@tonic-gate /* ill_state */ 1217c478bd9Sstevel@tonic-gate #define SCTP_ILLS_CONDEMNED -1 1227c478bd9Sstevel@tonic-gate 1237c478bd9Sstevel@tonic-gate #define SCTP_ILL_HASH 16 1247c478bd9Sstevel@tonic-gate 1257c478bd9Sstevel@tonic-gate typedef struct sctp_ill_hash_s { 1267c478bd9Sstevel@tonic-gate list_t sctp_ill_list; 1277c478bd9Sstevel@tonic-gate int ill_count; 1287c478bd9Sstevel@tonic-gate } sctp_ill_hash_t; 1297c478bd9Sstevel@tonic-gate 1307c478bd9Sstevel@tonic-gate 1317c478bd9Sstevel@tonic-gate #define SCTP_IPIF_REFHOLD(sctp_ipif) { \ 132*92baa190SGeorge Shepherd rw_enter(&(sctp_ipif)->sctp_ipif_lock, RW_WRITER); \ 133*92baa190SGeorge Shepherd (sctp_ipif)->sctp_ipif_refcnt++; \ 134*92baa190SGeorge Shepherd rw_exit(&(sctp_ipif)->sctp_ipif_lock); \ 1357c478bd9Sstevel@tonic-gate } 1367c478bd9Sstevel@tonic-gate 1377c478bd9Sstevel@tonic-gate #define SCTP_IPIF_REFRELE(sctp_ipif) { \ 138e35d2278Svi rw_enter(&(sctp_ipif)->sctp_ipif_lock, RW_WRITER); \ 1397c478bd9Sstevel@tonic-gate ASSERT((sctp_ipif)->sctp_ipif_refcnt != 0); \ 140e35d2278Svi if (--(sctp_ipif)->sctp_ipif_refcnt == 0 && \ 141e35d2278Svi (sctp_ipif)->sctp_ipif_state == SCTP_IPIFS_CONDEMNED) { \ 142e35d2278Svi rw_exit(&(sctp_ipif)->sctp_ipif_lock); \ 1437c478bd9Sstevel@tonic-gate sctp_ipif_inactive(sctp_ipif); \ 144e35d2278Svi } else { \ 145e35d2278Svi rw_exit(&(sctp_ipif)->sctp_ipif_lock); \ 146e35d2278Svi } \ 1477c478bd9Sstevel@tonic-gate } 1487c478bd9Sstevel@tonic-gate 1497c478bd9Sstevel@tonic-gate /* Address set comparison results. */ 1507c478bd9Sstevel@tonic-gate #define SCTP_ADDR_EQUAL 1 1517c478bd9Sstevel@tonic-gate #define SCTP_ADDR_SUBSET 2 1527c478bd9Sstevel@tonic-gate #define SCTP_ADDR_OVERLAP 3 1537c478bd9Sstevel@tonic-gate #define SCTP_ADDR_DISJOINT 4 1547c478bd9Sstevel@tonic-gate 1551d8c4025Svi extern int sctp_valid_addr_list(sctp_t *, const void *, uint32_t, 1561d8c4025Svi uchar_t *, size_t); 1577c478bd9Sstevel@tonic-gate extern int sctp_dup_saddrs(sctp_t *, sctp_t *, int); 1587c478bd9Sstevel@tonic-gate extern int sctp_compare_saddrs(sctp_t *, sctp_t *); 1591d8c4025Svi extern sctp_saddr_ipif_t *sctp_saddr_lookup(sctp_t *, in6_addr_t *, 1601d8c4025Svi uint_t); 161c31292eeSkcpoon extern in6_addr_t sctp_get_valid_addr(sctp_t *, boolean_t, boolean_t *); 162f551bb10Svi extern size_t sctp_saddr_info(sctp_t *, int, uchar_t *, boolean_t); 1637c478bd9Sstevel@tonic-gate extern void sctp_del_saddr_list(sctp_t *, const void *, int, 1647c478bd9Sstevel@tonic-gate boolean_t); 1657c478bd9Sstevel@tonic-gate extern void sctp_del_saddr(sctp_t *, sctp_saddr_ipif_t *); 1667c478bd9Sstevel@tonic-gate extern void sctp_free_saddrs(sctp_t *); 167f4b3ec61Sdh extern void sctp_saddr_init(sctp_stack_t *); 168f4b3ec61Sdh extern void sctp_saddr_fini(sctp_stack_t *); 1697c478bd9Sstevel@tonic-gate extern int sctp_getmyaddrs(void *, void *, int *); 1701d8c4025Svi extern int sctp_saddr_add_addr(sctp_t *, in6_addr_t *, uint_t); 171c31292eeSkcpoon extern void sctp_check_saddr(sctp_t *, int, boolean_t, 172c31292eeSkcpoon in6_addr_t *); 1737c478bd9Sstevel@tonic-gate 1747c478bd9Sstevel@tonic-gate #ifdef __cplusplus 1757c478bd9Sstevel@tonic-gate } 1767c478bd9Sstevel@tonic-gate #endif 1777c478bd9Sstevel@tonic-gate 1787c478bd9Sstevel@tonic-gate #endif /* _SCTP_ADDR_H */ 179