release/src/router/libpcap/pcap-dos.h

   1 /*
   2  * Internal details for libpcap on DOS.
   3  * 32-bit targets: djgpp, Pharlap or DOS4GW.
   4  *
   5  * @(#) $Header: /tcpdump/master/libpcap/pcap-dos.h,v 1.1 2004-12-18 08:52:10 guy Exp $ (LBL)
   6  */
   7
   8 #ifndef __PCAP_DOS_H
   9 #define __PCAP_DOS_H
  10
  11 #ifdef __DJGPP__
  12 #include <pc.h>    /* simple non-conio kbhit */
  13 #else
  14 #include <conio.h>
  15 #endif
  16
  17 typedef int            BOOL;
  18 typedef unsigned char  BYTE;
  19 typedef unsigned short WORD;
  20 typedef unsigned long  DWORD;
  21 typedef BYTE           ETHER[6];
  22
  23 #define ETH_ALEN       sizeof(ETHER)   /* Ether address length */
  24 #define ETH_HLEN       (2*ETH_ALEN+2)  /* Ether header length  */
  25 #define ETH_MTU        1500
  26 #define ETH_MIN        60
  27 #define ETH_MAX        (ETH_MTU+ETH_HLEN)
  28
  29 #ifndef TRUE
  30   #define TRUE   1
  31   #define FALSE  0
  32 #endif
  33
  34 #define PHARLAP  1
  35 #define DJGPP    2
  36 #define DOS4GW   4
  37
  38 #ifdef __DJGPP__
  39   #undef  DOSX
  40   #define DOSX DJGPP
  41 #endif
  42
  43 #ifdef __WATCOMC__
  44   #undef  DOSX
  45   #define DOSX DOS4GW
  46 #endif
  47
  48 #ifdef __HIGHC__
  49   #include <pharlap.h>
  50   #undef  DOSX
  51   #define DOSX PHARLAP
  52   #define inline
  53 #else
  54   typedef unsigned int UINT;
  55 #endif
  56
  57
  58 #if defined(__GNUC__) || defined(__HIGHC__)
  59   typedef unsigned long long  uint64;
  60   typedef unsigned long long  QWORD;
  61 #endif
  62
  63 #if defined(__WATCOMC__)
  64   typedef unsigned __int64  uint64;
  65   typedef unsigned __int64  QWORD;
  66 #endif
  67
  68 #define ARGSUSED(x)  (void) x
  69
  70 #if defined (__SMALL__) || defined(__LARGE__)
  71   #define DOSX 0
  72
  73 #elif !defined(DOSX)
  74   #error DOSX not defined; 1 = PharLap, 2 = djgpp, 4 = DOS4GW
  75 #endif
  76
  77 #ifdef __HIGHC__
  78 #define min(a,b) _min(a,b)
  79 #define max(a,b) _max(a,b)
  80 #endif
  81
  82 #ifndef min
  83 #define min(a,b) ((a) < (b) ? (a) : (b))
  84 #endif
  85
  86 #ifndef max
  87 #define max(a,b) ((a) < (b) ? (b) : (a))
  88 #endif
  89
  90 #if !defined(_U_) && defined(__GNUC__)
  91 #define _U_  __attribute__((unused))
  92 #endif
  93
  94 #ifndef _U_
  95 #define _U_
  96 #endif
  97
  98 #if defined(USE_32BIT_DRIVERS)
  99   #include "msdos/pm_drvr/lock.h"
 100
 101   #ifndef RECEIVE_QUEUE_SIZE
 102   #define RECEIVE_QUEUE_SIZE  60
 103   #endif
 104
 105   #ifndef RECEIVE_BUF_SIZE
 106   #define RECEIVE_BUF_SIZE   (ETH_MAX+20)
 107   #endif
 108
 109   extern struct device el2_dev     LOCKED_VAR;  /* 3Com EtherLink II */
 110   extern struct device el3_dev     LOCKED_VAR;  /*      EtherLink III */
 111   extern struct device tc59_dev    LOCKED_VAR;  /* 3Com Vortex Card (?) */
 112   extern struct device tc515_dev   LOCKED_VAR;
 113   extern struct device tc90x_dev   LOCKED_VAR;
 114   extern struct device tc90bcx_dev LOCKED_VAR;
 115   extern struct device wd_dev      LOCKED_VAR;
 116   extern struct device ne_dev      LOCKED_VAR;
 117   extern struct device acct_dev    LOCKED_VAR;
 118   extern struct device cs89_dev    LOCKED_VAR;
 119   extern struct device rtl8139_dev LOCKED_VAR;
 120
 121   struct rx_ringbuf {
 122          volatile int in_index;   /* queue index head */
 123          int          out_index;  /* queue index tail */
 124          int          elem_size;  /* size of each element */
 125          int          num_elem;   /* number of elements */
 126          char        *buf_start;  /* start of buffer pool */
 127        };
 128
 129   struct rx_elem {
 130          DWORD size;              /* size copied to this element */
 131          BYTE  data[ETH_MAX+10];  /* add some margin. data[0] should be */
 132        };                         /* dword aligned */
 133
 134   extern BYTE *get_rxbuf     (int len) LOCKED_FUNC;
 135   extern int   peek_rxbuf    (BYTE **buf);
 136   extern int   release_rxbuf (BYTE  *buf);
 137
 138 #else
 139   #define LOCKED_VAR
 140   #define LOCKED_FUNC
 141
 142   struct device {
 143          const char *name;
 144          const char *long_name;
 145          DWORD  base_addr;      /* device I/O address       */
 146          int    irq;            /* device IRQ number        */
 147          int    dma;            /* DMA channel              */
 148          DWORD  mem_start;      /* shared mem start         */
 149          DWORD  mem_end;        /* shared mem end           */
 150          DWORD  rmem_start;     /* shmem "recv" start       */
 151          DWORD  rmem_end;       /* shared "recv" end        */
 152
 153          struct device *next;   /* next device in list      */
 154
 155          /* interface service routines */
 156          int   (*probe)(struct device *dev);
 157          int   (*open) (struct device *dev);
 158          void  (*close)(struct device *dev);
 159          int   (*xmit) (struct device *dev, const void *buf, int len);
 160          void *(*get_stats)(struct device *dev);
 161          void  (*set_multicast_list)(struct device *dev);
 162
 163          /* driver-to-pcap receive buffer routines */
 164          int   (*copy_rx_buf) (BYTE *buf, int max); /* rx-copy (pktdrvr only) */
 165          BYTE *(*get_rx_buf) (int len);             /* rx-buf fetch/enqueue */
 166          int   (*peek_rx_buf) (BYTE **buf);         /* rx-non-copy at queue */
 167          int   (*release_rx_buf) (BYTE *buf);       /* release after peek */
 168
 169          WORD   flags;          /* Low-level status flags. */
 170          void  *priv;           /* private data */
 171        };
 172
 173   /*
 174    * Network device statistics
 175    */
 176   typedef struct net_device_stats {
 177           DWORD  rx_packets;            /* total packets received       */
 178           DWORD  tx_packets;            /* total packets transmitted    */
 179           DWORD  rx_bytes;              /* total bytes received         */
 180           DWORD  tx_bytes;              /* total bytes transmitted      */
 181           DWORD  rx_errors;             /* bad packets received         */
 182           DWORD  tx_errors;             /* packet transmit problems     */
 183           DWORD  rx_dropped;            /* no space in Rx buffers       */
 184           DWORD  tx_dropped;            /* no space available for Tx    */
 185           DWORD  multicast;             /* multicast packets received   */
 186
 187           /* detailed rx_errors: */
 188           DWORD  rx_length_errors;
 189           DWORD  rx_over_errors;        /* recv'r overrun error         */
 190           DWORD  rx_osize_errors;       /* recv'r over-size error       */
 191           DWORD  rx_crc_errors;         /* recv'd pkt with crc error    */
 192           DWORD  rx_frame_errors;       /* recv'd frame alignment error */
 193           DWORD  rx_fifo_errors;        /* recv'r fifo overrun          */
 194           DWORD  rx_missed_errors;      /* recv'r missed packet         */
 195
 196           /* detailed tx_errors */
 197           DWORD  tx_aborted_errors;
 198           DWORD  tx_carrier_errors;
 199           DWORD  tx_fifo_errors;
 200           DWORD  tx_heartbeat_errors;
 201           DWORD  tx_window_errors;
 202           DWORD  tx_collisions;
 203           DWORD  tx_jabbers;
 204         } NET_STATS;
 205 #endif
 206
 207 extern struct device       *active_dev  LOCKED_VAR;
 208 extern const struct device *dev_base    LOCKED_VAR;
 209 extern struct device       *probed_dev;
 210
 211 extern int pcap_pkt_debug;
 212
 213 extern void _w32_os_yield (void); /* Watt-32's misc.c */
 214
 215 #ifdef NDEBUG
 216   #define PCAP_ASSERT(x) ((void)0)
 217
 218 #else
 219   void pcap_assert (const char *what, const char *file, unsigned line);
 220
 221   #define PCAP_ASSERT(x) do { \
 222                            if (!(x)) \
 223                               pcap_assert (#x, __FILE__, __LINE__); \
 224                          } while (0)
 225 #endif
 226
 227 #endif  /* __PCAP_DOS_H */