1 /* SCTP kernel Implementation: User API extensions.
2 *
3 * opt_info.c
4 *
5 * Distributed under the terms of the LGPL v2.1 as described in
6 * http://www.gnu.org/copyleft/lesser.txt
7 *
8 * This file is part of the user library that offers support for the
9 * SCTP kernel Implementation. The main purpose of this
10 * code if to provide the SCTP Socket API mappings for user
11 * application to interface with the SCTP in kernel.
12 *
13 * This implementation is based on the Socket API Extensions for SCTP
14 * defined in <draft-ietf-tsvwg-sctpsocket-10.txt.
15 *
16 * (C) Copyright IBM Corp. 2003
17 * Copyright (c) 2002 Intel Corporation.
18 *
19 * Written or modified by:
20 * Ardelle Fan <ardelle.fan@intel.com>
21 */
22
23 #include <sys/socket.h> /* struct sockaddr_storage, setsockopt() */
24 #include <netinet/sctp.h> /* SCTP_SOCKOPT_BINDX_* */
25 #include <errno.h>
26
27 /* Support the sctp_opt_info() interface.
28 *
29 * See Sockets API Extensions for SCTP. Section 7.
30 *
31 * Pass sctp option information pass both in to and out of the SCTP stack.
32 * This is a new SCTP API described in the section 7 of the Sockets API
33 * Extensions for SCTP. This is implemented using the getsockopt() interface.
34 */
35 int
sctp_opt_info(int sd,sctp_assoc_t id,int opt,void * arg,socklen_t * size)36 sctp_opt_info(int sd, sctp_assoc_t id, int opt, void *arg, socklen_t *size)
37 {
38 switch (opt) {
39 case SCTP_RTOINFO:
40 case SCTP_ASSOCINFO:
41 case SCTP_INITMSG:
42 case SCTP_NODELAY:
43 case SCTP_AUTOCLOSE:
44 case SCTP_PRIMARY_ADDR:
45 case SCTP_DISABLE_FRAGMENTS:
46 case SCTP_PEER_ADDR_PARAMS:
47 case SCTP_DEFAULT_SEND_PARAM:
48 case SCTP_EVENTS:
49 case SCTP_I_WANT_MAPPED_V4_ADDR:
50 case SCTP_MAXSEG:
51 case SCTP_STATUS:
52 case SCTP_GET_PEER_ADDR_INFO:
53 case SCTP_AUTH_ACTIVE_KEY:
54 case SCTP_PEER_AUTH_CHUNKS:
55 case SCTP_LOCAL_AUTH_CHUNKS:
56 *(sctp_assoc_t *)arg = id;
57 return getsockopt(sd, IPPROTO_SCTP, opt, arg, size);
58 default:
59 return ENOTSUP;
60 }
61
62 } /* sctp_opt_info() */
63