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
17typedef int            BOOL;
18typedef unsigned char  BYTE;
19typedef unsigned short WORD;
20typedef unsigned long  DWORD;
21typedef 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
207extern struct device       *active_dev  LOCKED_VAR;
208extern const struct device *dev_base    LOCKED_VAR;
209extern struct device       *probed_dev;
210
211extern int pcap_pkt_debug;
212
213extern 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 */
228