mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-16 10:20:30 +00:00
411675bae3
o Show more information about missing MP fragments in ``show mp''. o Do away with mbuf_Log(). It was showing mbuf stats twice on receipt of LCP/CCP/IPCP packets.... ???!!? o Pre-allocate a bit extra when creating LQR packets to avoid having to allocate another mbuf in mbuf_Prepend().
102 lines
3.1 KiB
C
102 lines
3.1 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 1.17 1999/05/09 20:02:25 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) \
|
|
((bp) ? (u_char *)((bp)+1) + (bp)->offset : NULL)
|
|
|
|
#define CONST_MBUF_CTOP(bp) \
|
|
((bp) ? (const u_char *)((bp)+1) + (bp)->offset : NULL)
|
|
|
|
#define MB_IPIN 0
|
|
#define MB_IPOUT 1
|
|
#define MB_ALIASIN 2
|
|
#define MB_ALIASOUT 3
|
|
#define MB_MPIN 4
|
|
#define MB_MPOUT 5
|
|
#define MB_VJIN 6
|
|
#define MB_VJOUT 7
|
|
#define MB_ICOMPDIN 8
|
|
#define MB_ICOMPDOUT 9
|
|
#define MB_COMPDIN 10
|
|
#define MB_COMPDOUT 11
|
|
#define MB_LQRIN 12
|
|
#define MB_LQROUT 13
|
|
#define MB_ECHOIN 14
|
|
#define MB_ECHOOUT 15
|
|
#define MB_PROTOIN 16
|
|
#define MB_PROTOOUT 17
|
|
#define MB_ACFIN 18
|
|
#define MB_ACFOUT 19
|
|
#define MB_SYNCIN 20
|
|
#define MB_SYNCOUT 21
|
|
#define MB_HDLCIN 22
|
|
#define MB_HDLCOUT 23
|
|
#define MB_ASYNCIN 24
|
|
#define MB_ASYNCOUT 25
|
|
#define MB_CBCPIN 26
|
|
#define MB_CBCPOUT 27
|
|
#define MB_CHAPIN 28
|
|
#define MB_CHAPOUT 29
|
|
#define MB_PAPIN 30
|
|
#define MB_PAPOUT 31
|
|
#define MB_CCPIN 32
|
|
#define MB_CCPOUT 33
|
|
#define MB_IPCPIN 34
|
|
#define MB_IPCPOUT 35
|
|
#define MB_LCPIN 36
|
|
#define MB_LCPOUT 37
|
|
#define MB_UNKNOWN 38
|
|
#define MB_MAX MB_UNKNOWN
|
|
|
|
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 *, const void *, size_t);
|
|
extern struct mbuf *mbuf_Read(struct mbuf *, void *, size_t);
|
|
extern size_t mbuf_View(struct mbuf *, void *, size_t);
|
|
extern struct mbuf *mbuf_Prepend(struct mbuf *, const void *, size_t, size_t);
|
|
extern struct mbuf *mbuf_Truncate(struct mbuf *, size_t);
|
|
extern int mbuf_Show(struct cmdargs const *);
|
|
extern void mbuf_Enqueue(struct mqueue *, struct mbuf *);
|
|
extern struct mbuf *mbuf_Dequeue(struct mqueue *);
|
|
extern struct mbuf *mbuf_Contiguous(struct mbuf *);
|
|
extern void mbuf_SetType(struct mbuf *, int);
|