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/*
* Copyright (c) 1995 Danny Gasparovski.
*
* Please read the file COPYRIGHT for the
* terms and conditions of the copyright.
*/
#ifndef _IF_H_
#define _IF_H_
#define IF_COMPRESS 0x01 /* We want compression */
#define IF_NOCOMPRESS 0x02 /* Do not do compression */
#define IF_AUTOCOMP 0x04 /* Autodetect (default) */
#define IF_NOCIDCOMP 0x08 /* CID compression */
#define IF_MTU 1500
#define IF_MRU 1500
#define IF_COMP IF_AUTOCOMP /* Flags for compression */
#if 0
/*
* Set if_maxlinkhdr to 48 because it's 40 bytes for TCP/IP,
* and 8 bytes for PPP, but need to have it on an 8byte boundary
*/
#ifdef USE_PPP
#define IF_MAXLINKHDR 48
#else
#define IF_MAXLINKHDR 40
#endif
#else
/* 2 for alignment, 14 for ethernet, 40 for TCP/IP */
#define IF_MAXLINKHDR (2 + 14 + 40)
#endif
extern int if_queued; /* Number of packets queued so far */
extern int if_thresh; /* Number of packets queued before we start sending
* (to prevent allocing too many mbufs) */
extern struct mbuf if_fastq; /* fast queue (for interactive data) */
extern struct mbuf if_batchq; /* queue for non-interactive data */
extern struct mbuf *next_m;
#define ifs_init(ifm) ((ifm)->ifs_next = (ifm)->ifs_prev = (ifm))
#ifdef LOG_ENABLED
/* Interface statistics */
struct slirp_ifstats {
u_int out_pkts; /* Output packets */
u_int out_bytes; /* Output bytes */
u_int out_errpkts; /* Output Error Packets */
u_int out_errbytes; /* Output Error Bytes */
u_int in_pkts; /* Input packets */
u_int in_bytes; /* Input bytes */
u_int in_errpkts; /* Input Error Packets */
u_int in_errbytes; /* Input Error Bytes */
u_int bytes_saved; /* Number of bytes that compression "saved" */
/* ie: number of bytes that didn't need to be sent over the link
* because of compression */
u_int in_mbad; /* Bad incoming packets */
};
#endif
#endif
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