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1.1 root 1: /*
2: * Copyright (c) 1982, 1986 Regents of the University of California.
3: * All rights reserved. The Berkeley software License Agreement
4: * specifies the terms and conditions for redistribution.
5: *
6: * @(#)sys_machdep.c 7.5 (Berkeley) 6/28/90
7: */
8:
9: #include "param.h"
10: #include "systm.h"
11: #include "user.h"
12: #include "ioctl.h"
13: #include "file.h"
14: #include "proc.h"
15: #include "kernel.h"
16: #include "mtio.h"
17: #include "buf.h"
18: #include "trace.h"
19:
20: #include "dkio.h"
21: #include "pte.h"
22: #include "../vaxuba/ubareg.h"
23: #include "../vaxuba/ubavar.h"
24:
25: /* ARGSUSED */
26: resuba(p, uap, retval)
27: struct proc *p;
28: struct args {
29: int value;
30: } *uap;
31: int *retval;
32: {
33: int error;
34:
35: if (error = suser(u.u_cred, &u.u_acflag))
36: return (error);
37: if (uap->value < numuba)
38: ubareset(uap->value);
39: return (0);
40: }
41:
42: #ifdef TRACE
43: int nvualarm;
44:
45: vtrace(p, uap, retval)
46: struct proc *p;
47: register struct args {
48: int request;
49: int value;
50: } *uap;
51: int *retval;
52: {
53: int vdoualarm();
54:
55: switch (uap->request) {
56:
57: case VTR_DISABLE: /* disable a trace point */
58: case VTR_ENABLE: /* enable a trace point */
59: if (uap->value < 0 || uap->value >= TR_NFLAGS)
60: return (EINVAL);
61: *retval = traceflags[uap->value];
62: traceflags[uap->value] = uap->request;
63: break;
64:
65: case VTR_VALUE: /* return a trace point setting */
66: if (uap->value < 0 || uap->value >= TR_NFLAGS)
67: return (EINVAL);
68: *retval = traceflags[uap->value];
69: break;
70:
71: case VTR_UALARM: /* set a real-time ualarm, less than 1 min */
72: if (uap->value <= 0 || uap->value > 60 * hz || nvualarm > 5)
73: return (EINVAL);
74: nvualarm++;
75: timeout(vdoualarm, (caddr_t)p->p_pid, uap->value);
76: break;
77:
78: case VTR_STAMP:
79: trace(TR_STAMP, uap->value, p->p_pid);
80: break;
81: }
82: return (0);
83: }
84:
85: vdoualarm(arg)
86: int arg;
87: {
88: register struct proc *p;
89:
90: p = pfind(arg);
91: if (p)
92: psignal(p, 16);
93: nvualarm--;
94: }
95: #endif
96:
97: #ifdef COMPAT
98: /*
99: * Note: these tables are sorted by
100: * ioctl "code" (in ascending order).
101: */
102: int dctls[] = { DKIOCHDR, 0 };
103: int fctls[] = { FIOCLEX, FIONCLEX, FIOASYNC, FIONBIO, FIONREAD, 0 };
104: int mctls[] = { MTIOCTOP, MTIOCGET, 0 };
105: int tctls[] = {
106: TIOCGETD, TIOCSETD, TIOCHPCL, TIOCMODG, TIOCMODS,
107: TIOCGETP, TIOCSETP, TIOCSETN, TIOCEXCL, TIOCNXCL,
108: TIOCFLUSH,TIOCSETC, TIOCGETC, TIOCREMOTE,TIOCMGET,
109: TIOCMBIC, TIOCMBIS, TIOCMSET, TIOCSTART,TIOCSTOP,
110: TIOCPKT, TIOCNOTTY,TIOCSTI, TIOCOUTQ, TIOCGLTC,
111: TIOCSLTC, TIOCSPGRP,TIOCGPGRP,TIOCCDTR, TIOCSDTR,
112: TIOCCBRK, TIOCSBRK, TIOCLGET, TIOCLSET, TIOCLBIC,
113: TIOCLBIS, 0
114: };
115:
116: /*
117: * Map an old style ioctl command to new.
118: */
119: mapioctl(cmd)
120: int cmd;
121: {
122: register int *map, c;
123:
124: switch ((cmd >> 8) & 0xff) {
125:
126: case 'd':
127: map = dctls;
128: break;
129:
130: case 'f':
131: map = fctls;
132: break;
133:
134: case 'm':
135: map = mctls;
136: break;
137:
138: case 't':
139: map = tctls;
140: break;
141:
142: default:
143: return (0);
144: }
145: while ((c = *map) && (c&0xff) < (cmd&0xff))
146: map++;
147: if (c && (c&0xff) == (cmd&0xff))
148: return (c);
149: return (0);
150: }
151: #endif
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