| 1 | /*
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| 2 | * ioctl.c for mdb -- decode an IOCTL system call
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| 3 | */
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| 4 | #include "mdb.h"
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| 5 | #ifdef SYSCALLS_SUPPORT
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| 6 | #include <stdio.h>
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| 7 | #include <stdlib.h>
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| 8 | #include <string.h>
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| 9 | #include <fcntl.h>
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| 10 | #include <sys/stat.h>
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| 11 | #include <minix/type.h>
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| 12 | #include <minix/callnr.h>
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| 13 | #include <minix/com.h>
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| 14 | #include <sys/ioctl.h>
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| 15 | #include <sgtty.h>
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| 16 | #include "proto.h"
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| 17 |
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| 18 | PRIVATE int get_request;
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| 19 |
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| 20 | PRIVATE char *rnames[] = {
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| 21 | "TIOCGETP",
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| 22 | "TIOCSETP",
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| 23 | "TIOCGETC",
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| 24 | "TIOCSETC"
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| 25 | };
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| 26 |
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| 27 | #define GETPNAME 0
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| 28 | #define SETPNAME 1
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| 29 | #define GETCNAME 2
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| 30 | #define SETCNAME 3
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| 31 |
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| 32 | /*
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| 33 | * decode ioctl call
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| 34 | * send or receive = 'R' or 'S'
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| 35 | */
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| 36 | void decode_ioctl(sr, m)
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| 37 | int sr;
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| 38 | message *m;
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| 39 | {
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| 40 | int rq;
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| 41 | int request, device;
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| 42 | int high;
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| 43 | long spek, flags;
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| 44 | int ispeed, ospeed, speed, erase, kill;
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| 45 | int t_intrc, t_quitc, t_startc, t_stopc, t_brk, t_eof;
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| 46 |
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| 47 | device = m->m2_i1;
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| 48 | request = m->m2_i3;
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| 49 | spek = m->m2_l1;
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| 50 | flags = m->m2_l2;
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| 51 |
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| 52 | #ifdef DEBUG
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| 53 | if( debug )
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| 54 | Printf("%c device=%d request=%c|%d m2_l1=%lx m2_l2=%lx\n",
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| 55 | sr,device,
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| 56 | (request >> 8) & BYTE,
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| 57 | request & BYTE,
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| 58 | spek,flags);
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| 59 | #endif
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| 60 |
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| 61 | if ( sr == 'R') request = get_request;
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| 62 |
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| 63 | switch(request) {
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| 64 | case TIOCGETP:
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| 65 | case TIOCSETP:
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| 66 | rq = (request == TIOCGETP) ? GETPNAME : SETPNAME;
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| 67 | if (sr == 'S') {
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| 68 | get_request = request;
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| 69 | Printf( "Sending %s ",rnames[rq] );
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| 70 | if ( request == TIOCGETP ) break;
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| 71 | }
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| 72 |
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| 73 | if ( (sr == 'R') && (request == TIOCSETP) ) break;
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| 74 |
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| 75 | erase = (spek >> 8) & BYTE;
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| 76 | kill = spek & BYTE;
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| 77 | flags = flags & 0xFFFF;
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| 78 | speed = (spek >> 16) & 0xFFFFL;
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| 79 | ispeed = speed & BYTE;
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| 80 | ospeed = (speed >> 8) & BYTE;
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| 81 | Printf("%s erase=%d kill=%d speed=%d/%d flags=%lx ",
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| 82 | rnames[rq], erase, kill, ispeed, ospeed, flags);
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| 83 | break;
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| 84 |
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| 85 | case TIOCGETC:
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| 86 | case TIOCSETC:
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| 87 | rq = (request == TIOCGETC) ? GETCNAME : SETCNAME;
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| 88 | if (sr == 'S') {
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| 89 | get_request = request;
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| 90 | Printf( "Sending %s ",rnames[rq] );
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| 91 | if ( request == TIOCGETC ) break;
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| 92 | }
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| 93 |
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| 94 | if ( (sr == 'R') && (request == TIOCSETC) ) break;
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| 95 |
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| 96 | t_intrc = (spek >> 24) & BYTE;
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| 97 | t_quitc = (spek >> 16) & BYTE;
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| 98 | t_startc = (spek >> 8) & BYTE;
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| 99 | t_stopc = (spek >> 0) & BYTE;
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| 100 | t_brk = flags & BYTE;
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| 101 | t_eof = (flags >> 8 ) & BYTE;
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| 102 | Printf("%s int %d quit %d start %d stop %d brk %d eof %d\n",
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| 103 | rnames[rq],
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| 104 | t_intrc, t_quitc, t_startc, t_stopc, t_brk, t_eof);
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| 105 | break;
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| 106 |
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| 107 | default:
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| 108 |
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| 109 | #ifdef __i86 /* 16 bit */
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| 110 | if ( sr == 'S' ) {
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| 111 | Printf("Sending ");
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| 112 | get_request = request;
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| 113 | }
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| 114 | else
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| 115 | Printf("Receiving ");
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| 116 |
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| 117 | Printf("Other IOCTL device=%d request=%c|%d\n",
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| 118 | device, (request >> 8) & BYTE, request & BYTE );
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| 119 |
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| 120 | break;
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| 121 | #endif
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| 122 |
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| 123 | #ifdef __i386 /* 32 bit encoding */
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| 124 | if ( sr == 'S' ) {
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| 125 | Printf("Sending (%lx) ", request);
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| 126 | get_request = request;
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| 127 | }
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| 128 | else
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| 129 | Printf("Receiving (%lx) ", request);
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| 130 |
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| 131 | high = ( request & 0xFFFF0000 ) >> 16 ;
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| 132 | request &= _IOCTYPE_MASK;
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| 133 |
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| 134 | Printf("Other IOCTL device=%d request=%c|%d flags=%x size =%d\n",
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| 135 | device, (request >> 8) & BYTE, request & BYTE,
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| 136 | (high & ~_IOCPARM_MASK ),
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| 137 | (high & _IOCPARM_MASK )
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| 138 | );
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| 139 | break;
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| 140 | #endif
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| 141 | }
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| 142 | Printf("\n");
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| 143 | }
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| 144 |
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| 145 |
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| 146 | #endif /* SYSCALLS_SUPPORT */
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