6 * Copyright (c) 2001-2002 Maksim Yevmenkin <m_evmenkin@yahoo.com>
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 * $Id: ng_h4_var.h,v 1.5 2005/10/31 17:57:43 max Exp $
36 * FreeBSD: src/sys/netgraph/ng_tty.h
37 * Author: Archie Cobbs <archie@freebsd.org>
40 #ifndef _NETGRAPH_H4_VAR_H_
41 #define _NETGRAPH_H4_VAR_H_
47 #ifndef NG_SEPARATE_MALLOC
48 MALLOC_DECLARE(M_NETGRAPH_H4);
50 #define M_NETGRAPH_H4 M_NETGRAPH
51 #endif /* NG_SEPARATE_MALLOC */
57 #define NG_H4_ALERT if (sc->debug >= NG_H4_ALERT_LEVEL) printf
58 #define NG_H4_ERR if (sc->debug >= NG_H4_ERR_LEVEL) printf
59 #define NG_H4_WARN if (sc->debug >= NG_H4_WARN_LEVEL) printf
60 #define NG_H4_INFO if (sc->debug >= NG_H4_INFO_LEVEL) printf
62 #define NG_H4_HIWATER 256 /* High water mark on output */
65 * Per-node private info
68 typedef struct ng_h4_info {
69 struct tty *tp; /* Terminal device */
70 node_p node; /* Netgraph node */
72 ng_h4_node_debug_ep debug; /* Debug level */
73 ng_h4_node_state_ep state; /* State */
75 ng_h4_node_stat_ep stat;
76 #define NG_H4_STAT_PCKTS_SENT(s) (s).pckts_sent ++
77 #define NG_H4_STAT_BYTES_SENT(s, n) (s).bytes_sent += (n)
78 #define NG_H4_STAT_PCKTS_RECV(s) (s).pckts_recv ++
79 #define NG_H4_STAT_BYTES_RECV(s, n) (s).bytes_recv += (n)
80 #define NG_H4_STAT_OERROR(s) (s).oerrors ++
81 #define NG_H4_STAT_IERROR(s) (s).ierrors ++
82 #define NG_H4_STAT_RESET(s) bzero(&(s), sizeof((s)))
84 struct ifqueue outq; /* Queue of outgoing mbuf's */
85 #define NG_H4_DEFAULTQLEN 12 /* XXX max number of mbuf's in outq */
86 #define NG_H4_LOCK(sc) IF_LOCK(&sc->outq)
87 #define NG_H4_UNLOCK(sc) IF_UNLOCK(&sc->outq)
89 #define NG_H4_IBUF_SIZE 1024 /* XXX must be big enough to hold full
91 u_int8_t ibuf[NG_H4_IBUF_SIZE]; /* Incoming data */
92 u_int32_t got; /* Number of bytes we have received */
93 u_int32_t want; /* Number of bytes we want to receive */
95 hook_p hook; /* Upstream hook */
96 struct callout timo; /* See man timeout(9) */
98 u_int8_t dying; /* are we dying? */
100 typedef ng_h4_info_t * ng_h4_info_p;
102 #endif /* _NETGRAPH_H4_VAR_H_ */