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, Version 1.0 only 6 * (the "License"). You may not use this file except in compliance 7 * with the License. 8 * 9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 10 * or http://www.opensolaris.org/os/licensing. 11 * See the License for the specific language governing permissions 12 * and limitations under the License. 13 * 14 * When distributing Covered Code, include this CDDL HEADER in each 15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 16 * If applicable, add the following below this CDDL HEADER, with the 17 * fields enclosed by brackets "[]" replaced with your own identifying 18 * information: Portions Copyright [yyyy] [name of copyright owner] 19 * 20 * CDDL HEADER END 21 */ 22 /* 23 * Copyright 2005 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 #ifndef _INET_SCTP_ITF_H 28 #define _INET_SCTP_ITF_H 29 30 #pragma ident "%Z%%M% %I% %E% SMI" 31 32 #ifdef __cplusplus 33 extern "C" { 34 #endif 35 36 #include <netinet/sctp.h> 37 38 /* 39 * Kernel SCTP programming interface. Note that this interface 40 * is private to Sun and can be changed without notice. 41 */ 42 43 #ifdef _KERNEL 44 45 /* 46 * The version number of the SCTP kernel interface. Use it with 47 * sctp_itf_ver() to verify if the kernel supports the correct 48 * version of the interface. 49 * 50 * NOTE: do not assume backward compatibility of the interface. 51 * If the return value of sctp_itf_ver() is different from what 52 * is expected, do not call any of the routines. 53 */ 54 #define SCTP_ITF_VER 1 55 56 /* 57 * This struct holds all the upcalls the SCTP kernel module will 58 * invoke for different events. When calling sctp_create() to create 59 * a SCTP handle, the caller must provide this information. 60 */ 61 typedef struct sctp_upcalls_s { 62 void * (*su_newconn)(void *parenthandle, void *connind); 63 void (*su_connected)(void *handle); 64 int (*su_disconnected)(void *handle, int error); 65 void (*su_disconnecting)(void *handle); 66 int (*su_recv)(void *handle, mblk_t *mp, int flags); 67 void (*su_xmitted)(void *handle, int txqueued); 68 void (*su_properties)(void *handle, int wroff, size_t maxblk); 69 } sctp_upcalls_t; 70 71 /* 72 * This struct holds various flow control limits the caller of 73 * sctp_create() should observe when interacting with SCTP. 74 */ 75 typedef struct sctp_sockbuf_limits_s { 76 int sbl_rxbuf; 77 int sbl_rxlowat; 78 int sbl_txbuf; 79 int sbl_txlowat; 80 } sctp_sockbuf_limits_t; 81 82 /* 83 * Parameter to SCTP_UC_SWAP setsockopt 84 */ 85 struct sctp_uc_swap { 86 void *sus_handle; 87 sctp_upcalls_t *sus_upcalls; 88 }; 89 90 struct sctp_s; 91 92 /* 93 * The list of routines the SCTP kernel module provides. 94 */ 95 extern mblk_t *sctp_alloc_hdr(const char *name, int namelen, 96 const char *control, int controllen, int flags); 97 extern int sctp_bind(struct sctp_s *conn, struct sockaddr *addr, 98 socklen_t addrlen); 99 extern int sctp_bindx(struct sctp_s *conn, const void *addrs, int addrcnt, 100 int flags); 101 extern void sctp_close(struct sctp_s *conn); 102 extern int sctp_connect(struct sctp_s *conn, const struct sockaddr *dst, 103 socklen_t addrlen); 104 extern struct sctp_s *sctp_create(void *newhandle, struct sctp_s *parent, 105 int family, int flags, const sctp_upcalls_t *su, 106 sctp_sockbuf_limits_t *sbl, cred_t *cr); 107 extern int sctp_disconnect(struct sctp_s *conn); 108 extern int sctp_get_opt(struct sctp_s *conn, int level, int opt, void *opts, 109 socklen_t *optlen); 110 extern int sctp_getpeername(struct sctp_s *conn, struct sockaddr *addr, 111 socklen_t *addrlen); 112 extern int sctp_getsockname(struct sctp_s *conn, struct sockaddr *addr, 113 socklen_t *addrlen); 114 extern int sctp_itf_ver(int); 115 extern int sctp_listen(struct sctp_s *conn); 116 extern void sctp_recvd(struct sctp_s *conn, int len); 117 extern int sctp_sendmsg(struct sctp_s *conn, mblk_t *mp, int flags); 118 extern int sctp_set_opt(struct sctp_s *conn, int level, int opt, 119 const void *opts, socklen_t optlen); 120 121 /* Flags for sctp_create(), sctp_alloc_hdr() */ 122 #define SCTP_CAN_BLOCK 0x01 123 124 /* Flags for upcall su_recv() */ 125 #define SCTP_NOTIFICATION 0x01 /* message is a notification */ 126 #define SCTP_PARTIAL_DATA 0x02 /* not a full message */ 127 128 /* Use by sockfs to do sctp_peeloff(). */ 129 #define SCTP_UC_SWAP 255 130 131 /* 132 * The following are private interfaces between Solaris SCTP and SunCluster. 133 * Hence, these interfaces are only for use by SunCluster and are *not* part 134 * of the general SCTP kernel interface. 135 */ 136 137 typedef uintptr_t cl_sctp_handle_t; 138 139 typedef struct cl_sctp_info_s { 140 ushort_t cl_sctpi_version; 141 ushort_t cl_sctpi_family; 142 ushort_t cl_sctpi_ipversion; 143 int32_t cl_sctpi_state; 144 in_port_t cl_sctpi_lport; 145 in_port_t cl_sctpi_fport; 146 uint_t cl_sctpi_nladdr; 147 uchar_t *cl_sctpi_laddrp; 148 uint_t cl_sctpi_nfaddr; 149 uchar_t *cl_sctpi_faddrp; 150 cl_sctp_handle_t cl_sctpi_handle; 151 } cl_sctp_info_t; 152 153 #define CL_SCTPI_V1 1 /* cl_sctpi_version number */ 154 155 /* Used to indicate if the local or peer address list has changed */ 156 #define SCTP_CL_LADDR 1 157 #define SCTP_CL_PADDR 2 158 159 extern int cl_sctp_cookie_paddr(sctp_chunk_hdr_t *, in6_addr_t *); 160 extern int cl_sctp_walk_list(int (*callback)(cl_sctp_info_t *, void *), void *, 161 boolean_t); 162 163 /* End of private SunCluster interfaces */ 164 165 #endif /* _KERNEL */ 166 167 #ifdef __cplusplus 168 } 169 #endif 170 171 #endif /* _INET_SCTP_ITF_H */ 172