mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-17 10:26:15 +00:00
67 lines
2.2 KiB
C
67 lines
2.2 KiB
C
/*
|
|
* Written by Toshiharu OHNO (tony-o@iij.ad.jp)
|
|
*
|
|
* Copyright (C) 1993, Internet Initiative Japan, Inc. All rights reserverd.
|
|
*
|
|
* Redistribution and use in source and binary forms are permitted
|
|
* provided that the above copyright notice and this paragraph are
|
|
* duplicated in all such forms and that any documentation,
|
|
* advertising materials, and other materials related to such
|
|
* distribution and use acknowledge that the software was developed
|
|
* by the Internet Initiative Japan. The name of the
|
|
* IIJ may not be used to endorse or promote products derived
|
|
* from this software without specific prior written permission.
|
|
* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
|
|
* IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
|
|
* WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
|
|
*
|
|
* $Id: mbuf.h,v 1.13 1998/08/07 18:42:50 brian Exp $
|
|
*
|
|
* TODO:
|
|
*/
|
|
|
|
struct mbuf {
|
|
short size; /* size allocated (excluding header) */
|
|
short offset; /* offset from header end to start position */
|
|
short cnt; /* available byte count in buffer */
|
|
short type; /* MB_* below */
|
|
struct mbuf *next; /* link to next mbuf */
|
|
struct mbuf *pnext; /* link to next packet */
|
|
/* buffer space is malloc()d directly after the header */
|
|
};
|
|
|
|
struct mqueue {
|
|
struct mbuf *top;
|
|
struct mbuf *last;
|
|
int qlen;
|
|
};
|
|
|
|
#define MBUF_CTOP(bp) ((u_char *)((bp)+1) + (bp)->offset)
|
|
#define CONST_MBUF_CTOP(bp) ((const u_char *)((bp)+1) + (bp)->offset)
|
|
|
|
#define MB_ASYNC 1
|
|
#define MB_FSM 2
|
|
#define MB_CBCP 3
|
|
#define MB_HDLCOUT 4
|
|
#define MB_IPIN 5
|
|
#define MB_ECHO 6
|
|
#define MB_LQR 7
|
|
#define MB_LINK 8
|
|
#define MB_VJCOMP 9
|
|
#define MB_IPQ 10
|
|
#define MB_MP 11
|
|
#define MB_MAX MB_MP
|
|
|
|
struct cmdargs;
|
|
|
|
extern int mbuf_Length(struct mbuf *);
|
|
extern struct mbuf *mbuf_Alloc(int, int);
|
|
extern struct mbuf *mbuf_FreeSeg(struct mbuf *);
|
|
extern void mbuf_Free(struct mbuf *);
|
|
extern void mbuf_Write(struct mbuf *, u_char *, int);
|
|
extern struct mbuf *mbuf_Read(struct mbuf *, u_char *, int);
|
|
extern void mbuf_Log(void);
|
|
extern int mbuf_Show(struct cmdargs const *);
|
|
extern void mbuf_Enqueue(struct mqueue *, struct mbuf *);
|
|
extern struct mbuf *mbuf_Dequeue(struct mqueue *);
|