FreeBSD/Linux Kernel Cross Reference
sys/net/raw_cb.h
1 /*-
2 * SPDX-License-Identifier: BSD-3-Clause
3 *
4 * Copyright (c) 1980, 1986, 1993
5 * The Regents of the University of California.
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 3. Neither the name of the University nor the names of its contributors
17 * may be used to endorse or promote products derived from this software
18 * without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
24 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 * SUCH DAMAGE.
31 *
32 * @(#)raw_cb.h 8.1 (Berkeley) 6/10/93
33 * $FreeBSD: releng/12.0/sys/net/raw_cb.h 326023 2017-11-20 19:43:44Z pfg $
34 */
35
36 #ifndef _NET_RAW_CB_H_
37 #define _NET_RAW_CB_H_
38
39 #include <sys/queue.h>
40
41 /*
42 * Raw protocol interface control block. Used to tie a socket to the generic
43 * raw interface.
44 */
45 struct rawcb {
46 LIST_ENTRY(rawcb) list;
47 struct socket *rcb_socket; /* back pointer to socket */
48 struct sockproto rcb_proto; /* protocol family, protocol */
49 };
50
51 #define sotorawcb(so) ((struct rawcb *)(so)->so_pcb)
52
53 /*
54 * Nominal space allocated to a raw socket.
55 */
56 #define RAWSNDQ 8192
57 #define RAWRCVQ 8192
58
59 #ifdef _KERNEL
60 VNET_DECLARE(LIST_HEAD(rawcb_list_head, rawcb), rawcb_list);
61 #define V_rawcb_list VNET(rawcb_list)
62
63 extern struct mtx rawcb_mtx;
64
65 /*
66 * Generic protosw entries for raw socket protocols.
67 */
68 pr_ctlinput_t raw_ctlinput;
69 pr_init_t raw_init;
70
71 /*
72 * Library routines for raw socket usrreq functions; will always be wrapped
73 * so that protocol-specific functions can be handled.
74 */
75 typedef int (*raw_input_cb_fn)(struct mbuf *, struct sockproto *,
76 struct sockaddr *, struct rawcb *);
77
78 int raw_attach(struct socket *, int);
79 void raw_detach(struct rawcb *);
80 void raw_input(struct mbuf *, struct sockproto *, struct sockaddr *);
81 void raw_input_ext(struct mbuf *, struct sockproto *, struct sockaddr *,
82 raw_input_cb_fn);
83
84 /*
85 * Generic pr_usrreqs entries for raw socket protocols, usually wrapped so
86 * that protocol-specific functions can be handled.
87 */
88 extern struct pr_usrreqs raw_usrreqs;
89 #endif
90
91 #endif
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