contrib/libpcap/pcap-dos.h

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