1 /*- 2 * SPDX-License-Identifier: BSD-3-Clause 3 * 4 * Copyright (c) 1982, 1986, 1990, 1993 5 * The Regents of the University of California. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. Neither the name of the University nor the names of its contributors 16 * may be used to endorse or promote products derived from this software 17 * without specific prior written permission. 18 * 19 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 20 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 21 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 22 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 23 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 24 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 25 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 26 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 27 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 28 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 29 * SUCH DAMAGE. 30 */ 31 #ifndef _SYS_SOCKOPT_H_ 32 #define _SYS_SOCKOPT_H_ 33 34 #ifndef _KERNEL 35 #error "no user-serviceable parts inside" 36 #endif 37 38 struct thread; 39 struct socket; 40 41 /* 42 * Argument structure for sosetopt et seq. This is in the KERNEL 43 * section because it will never be visible to user code. 44 */ 45 enum sopt_dir { SOPT_GET, SOPT_SET }; 46 47 struct sockopt { 48 enum sopt_dir sopt_dir; /* is this a get or a set? */ 49 int sopt_level; /* second arg of [gs]etsockopt */ 50 int sopt_name; /* third arg of [gs]etsockopt */ 51 void *sopt_val; /* fourth arg of [gs]etsockopt */ 52 size_t sopt_valsize; /* (almost) fifth arg of [gs]etsockopt */ 53 struct thread *sopt_td; /* calling thread or null if kernel */ 54 }; 55 56 int sosetopt(struct socket *so, struct sockopt *sopt); 57 int sogetopt(struct socket *so, struct sockopt *sopt); 58 int sooptcopyin(struct sockopt *sopt, void *buf, size_t len, size_t minlen); 59 int sooptcopyout(struct sockopt *sopt, const void *buf, size_t len); 60 int soopt_getm(struct sockopt *sopt, struct mbuf **mp); 61 int soopt_mcopyin(struct sockopt *sopt, struct mbuf *m); 62 int soopt_mcopyout(struct sockopt *sopt, struct mbuf *m); 63 int accept_filt_getopt(struct socket *, struct sockopt *); 64 int accept_filt_setopt(struct socket *, struct sockopt *); 65 int so_setsockopt(struct socket *so, int level, int optname, 66 void *optval, size_t optlen); 67 68 #endif /* _SYS_SOCKOPT_H_ */ 69