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 2004 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 /* 37 * Kernel SCTP programming interface. Note that this interface 38 * is private to Sun and can be changed without notice. 39 */ 40 41 #ifdef _KERNEL 42 43 /* 44 * The version number of the SCTP kernel interface. Use it with 45 * sctp_itf_ver() to verify if the kernel supports the correct 46 * version of the interface. 47 * 48 * NOTE: do not assume backward compatibility of the interface. 49 * If the return value of sctp_itf_ver() is different from what 50 * is expected, do not call any of the routines. 51 */ 52 #define SCTP_ITF_VER 1 53 54 /* 55 * This struct holds all the upcalls the SCTP kernel module will 56 * invoke for different events. When calling sctp_create() to create 57 * a SCTP handle, the caller must provide this information. 58 */ 59 typedef struct sctp_upcalls_s { 60 void * (*su_newconn)(void *parenthandle, void *connind); 61 void (*su_connected)(void *handle); 62 int (*su_disconnected)(void *handle, int error); 63 void (*su_disconnecting)(void *handle); 64 int (*su_recv)(void *handle, mblk_t *mp, int flags); 65 void (*su_xmitted)(void *handle, int txqueued); 66 void (*su_properties)(void *handle, int wroff, size_t maxblk); 67 } sctp_upcalls_t; 68 69 /* 70 * This struct holds various flow control limits the caller of 71 * sctp_create() should observe when interacting with SCTP. 72 */ 73 typedef struct sctp_sockbuf_limits_s { 74 int sbl_rxbuf; 75 int sbl_rxlowat; 76 int sbl_txbuf; 77 int sbl_txlowat; 78 } sctp_sockbuf_limits_t; 79 80 /* 81 * Parameter to SCTP_UC_SWAP setsockopt 82 */ 83 struct sctp_uc_swap { 84 void *sus_handle; 85 sctp_upcalls_t *sus_upcalls; 86 }; 87 88 struct sctp_s; 89 90 /* 91 * The list of routines the SCTP kernel module provides. 92 */ 93 extern mblk_t *sctp_alloc_hdr(const char *name, int namelen, 94 const char *control, int controllen, int flags); 95 extern int sctp_bind(struct sctp_s *conn, struct sockaddr *addr, 96 socklen_t addrlen); 97 extern int sctp_bindx(struct sctp_s *conn, const void *addrs, int addrcnt, 98 int flags); 99 extern void sctp_close(struct sctp_s *conn); 100 extern int sctp_connect(struct sctp_s *conn, const struct sockaddr *dst, 101 socklen_t addrlen); 102 extern struct sctp_s *sctp_create(void *newhandle, struct sctp_s *parent, 103 int family, int flags, const sctp_upcalls_t *su, 104 sctp_sockbuf_limits_t *sbl, cred_t *cr); 105 extern int sctp_disconnect(struct sctp_s *conn); 106 extern int sctp_get_opt(struct sctp_s *conn, int level, int opt, void *opts, 107 socklen_t *optlen); 108 extern int sctp_getpeername(struct sctp_s *conn, struct sockaddr *addr, 109 socklen_t *addrlen); 110 extern int sctp_getsockname(struct sctp_s *conn, struct sockaddr *addr, 111 socklen_t *addrlen); 112 extern int sctp_itf_ver(int); 113 extern int sctp_listen(struct sctp_s *conn); 114 extern void sctp_recvd(struct sctp_s *conn, int len); 115 extern int sctp_sendmsg(struct sctp_s *conn, mblk_t *mp, int flags); 116 extern int sctp_set_opt(struct sctp_s *conn, int level, int opt, 117 const void *opts, socklen_t optlen); 118 119 /* Flags for sctp_create(), sctp_alloc_hdr() */ 120 #define SCTP_CAN_BLOCK 0x01 121 122 /* Flags for upcall su_recv() */ 123 #define SCTP_NOTIFICATION 0x01 /* message is a notification */ 124 #define SCTP_PARTIAL_DATA 0x02 /* not a full message */ 125 126 /* Use by sockfs to do sctp_peeloff(). */ 127 #define SCTP_UC_SWAP 255 128 129 #endif /* _KERNEL */ 130 131 #ifdef __cplusplus 132 } 133 #endif 134 135 #endif /* _INET_SCTP_ITF_H */ 136