slirp/if.h

   1 /*
   2  * Copyright (c) 1995 Danny Gasparovski.
   3  *
   4  * Please read the file COPYRIGHT for the
   5  * terms and conditions of the copyright.
   6  */
   7
   8 #ifndef _IF_H_
   9 #define _IF_H_
  10
  11 #define IF_COMPRESS     0x01    /* We want compression */
  12 #define IF_NOCOMPRESS   0x02    /* Do not do compression */
  13 #define IF_AUTOCOMP     0x04    /* Autodetect (default) */
  14 #define IF_NOCIDCOMP    0x08    /* CID compression */
  15
  16 /* Needed for FreeBSD */
  17 #undef if_mtu
  18 extern int      if_mtu;
  19 extern int      if_mru; /* MTU and MRU */
  20 extern int      if_comp;        /* Flags for compression */
  21 extern int      if_maxlinkhdr;
  22 extern int      if_queued;      /* Number of packets queued so far */
  23 extern int      if_thresh;      /* Number of packets queued before we start sending
  24                                  * (to prevent allocing too many mbufs) */
  25
  26 extern  struct mbuf if_fastq;                  /* fast queue (for interactive data) */
  27 extern  struct mbuf if_batchq;                 /* queue for non-interactive data */
  28 extern  struct mbuf *next_m;
  29
  30 #define ifs_init(ifm) ((ifm)->ifs_next = (ifm)->ifs_prev = (ifm))
  31
  32 #ifdef LOG_ENABLED
  33 /* Interface statistics */
  34 struct slirp_ifstats {
  35         u_int out_pkts;         /* Output packets */
  36         u_int out_bytes;                /* Output bytes */
  37         u_int out_errpkts;      /* Output Error Packets */
  38         u_int out_errbytes;     /* Output Error Bytes */
  39         u_int in_pkts;          /* Input packets */
  40         u_int in_bytes;         /* Input bytes */
  41         u_int in_errpkts;               /* Input Error Packets */
  42         u_int in_errbytes;      /* Input Error Bytes */
  43
  44         u_int bytes_saved;      /* Number of bytes that compression "saved" */
  45                                 /* ie: number of bytes that didn't need to be sent over the link
  46                                  * because of compression */
  47
  48         u_int in_mbad;          /* Bad incoming packets */
  49 };
  50 #endif
  51
  52 #endif