6 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
8 * Copyright (c) 2001-2002 Maksim Yevmenkin <m_evmenkin@yahoo.com>
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
14 * 1. Redistributions of source code must retain the above copyright
15 * notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 * notice, this list of conditions and the following disclaimer in the
18 * documentation and/or other materials provided with the distribution.
20 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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
32 * $Id: ng_h4_var.h,v 1.5 2005/10/31 17:57:43 max Exp $
38 * FreeBSD: src/sys/netgraph/ng_tty.h
39 * Author: Archie Cobbs <archie@freebsd.org>
42 #ifndef _NETGRAPH_H4_VAR_H_
43 #define _NETGRAPH_H4_VAR_H_
49 #ifndef NG_SEPARATE_MALLOC
50 MALLOC_DECLARE(M_NETGRAPH_H4);
52 #define M_NETGRAPH_H4 M_NETGRAPH
53 #endif /* NG_SEPARATE_MALLOC */
59 #define NG_H4_ALERT if (sc->debug >= NG_H4_ALERT_LEVEL) printf
60 #define NG_H4_ERR if (sc->debug >= NG_H4_ERR_LEVEL) printf
61 #define NG_H4_WARN if (sc->debug >= NG_H4_WARN_LEVEL) printf
62 #define NG_H4_INFO if (sc->debug >= NG_H4_INFO_LEVEL) printf
64 #define NG_H4_HIWATER 256 /* High water mark on output */
67 * Per-node private info
70 typedef struct ng_h4_info {
71 struct tty *tp; /* Terminal device */
72 node_p node; /* Netgraph node */
74 ng_h4_node_debug_ep debug; /* Debug level */
75 ng_h4_node_state_ep state; /* State */
77 ng_h4_node_stat_ep stat;
78 #define NG_H4_STAT_PCKTS_SENT(s) (s).pckts_sent ++
79 #define NG_H4_STAT_BYTES_SENT(s, n) (s).bytes_sent += (n)
80 #define NG_H4_STAT_PCKTS_RECV(s) (s).pckts_recv ++
81 #define NG_H4_STAT_BYTES_RECV(s, n) (s).bytes_recv += (n)
82 #define NG_H4_STAT_OERROR(s) (s).oerrors ++
83 #define NG_H4_STAT_IERROR(s) (s).ierrors ++
84 #define NG_H4_STAT_RESET(s) bzero(&(s), sizeof((s)))
86 struct ifqueue outq; /* Queue of outgoing mbuf's */
87 #define NG_H4_DEFAULTQLEN 12 /* XXX max number of mbuf's in outq */
88 #define NG_H4_LOCK(sc) IF_LOCK(&sc->outq)
89 #define NG_H4_UNLOCK(sc) IF_UNLOCK(&sc->outq)
91 #define NG_H4_IBUF_SIZE 1024 /* XXX must be big enough to hold full
93 u_int8_t ibuf[NG_H4_IBUF_SIZE]; /* Incoming data */
94 u_int32_t got; /* Number of bytes we have received */
95 u_int32_t want; /* Number of bytes we want to receive */
97 hook_p hook; /* Upstream hook */
98 struct callout timo; /* See man timeout(9) */
100 u_int8_t dying; /* are we dying? */
102 typedef ng_h4_info_t * ng_h4_info_p;
104 #endif /* _NETGRAPH_H4_VAR_H_ */