1 /* $OpenBSD: svr4_ioctl.c,v 1.12 2002/11/06 09:57:18 niklas Exp $ */
2 /* $NetBSD: svr4_ioctl.c,v 1.16 1996/04/11 12:54:41 christos Exp $ */
3
4 /*
5 * Copyright (c) 1994 Christos Zoulas
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 * 3. The name of the author may not be used to endorse or promote products
17 * derived from this software without specific prior written permission
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
20 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
21 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
22 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
23 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
24 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
28 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 */
30
31 #include <sys/param.h>
32 #include <sys/proc.h>
33 #include <sys/systm.h>
34 #include <sys/file.h>
35 #include <sys/filedesc.h>
36 #include <sys/ioctl.h>
37 #include <sys/termios.h>
38 #include <sys/tty.h>
39 #include <sys/socket.h>
40 #include <sys/mount.h>
41 #include <net/if.h>
42 #include <sys/malloc.h>
43
44 #include <sys/syscallargs.h>
45
46 #include <compat/svr4/svr4_types.h>
47 #include <compat/svr4/svr4_util.h>
48 #include <compat/svr4/svr4_signal.h>
49 #include <compat/svr4/svr4_syscallargs.h>
50 #include <compat/svr4/svr4_stropts.h>
51 #include <compat/svr4/svr4_ioctl.h>
52 #include <compat/svr4/svr4_jioctl.h>
53 #include <compat/svr4/svr4_termios.h>
54 #include <compat/svr4/svr4_ttold.h>
55 #include <compat/svr4/svr4_filio.h>
56 #include <compat/svr4/svr4_sockio.h>
57
58 #ifdef DEBUG_SVR4
59 static void svr4_decode_cmd(u_long, char *, char *, int *, int *);
60 /*
61 * Decode an ioctl command symbolically
62 */
63 static void
64 svr4_decode_cmd(cmd, dir, c, num, argsiz)
65 u_long cmd;
66 char *dir, *c;
67 int *num, *argsiz;
68 {
69 if (cmd & SVR4_IOC_VOID)
70 *dir++ = 'V';
71 if (cmd & SVR4_IOC_IN)
72 *dir++ = 'R';
73 if (cmd & SVR4_IOC_OUT)
74 *dir++ = 'W';
75 *dir = '\0';
76 if (cmd & SVR4_IOC_INOUT)
77 *argsiz = (cmd >> 16) & 0xff;
78 else
79 *argsiz = -1;
80
81 *c = (cmd >> 8) & 0xff;
82 *num = cmd & 0xff;
83 }
84 #endif
85
86 int
87 svr4_sys_ioctl(p, v, retval)
88 register struct proc *p;
89 void *v;
90 register_t *retval;
91 {
92 struct svr4_sys_ioctl_args *uap = v;
93 struct file *fp;
94 struct filedesc *fdp;
95 u_long cmd;
96 int (*fun)(struct file *, struct proc *, register_t *,
97 int, u_long, caddr_t);
98 int error = 0;
99 #ifdef DEBUG_SVR4
100 char dir[4];
101 char c;
102 int num;
103 int argsiz;
104
105 svr4_decode_cmd(SCARG(uap, com), dir, &c, &num, &argsiz);
106
107 uprintf("svr4_ioctl(%d, _IO%s(%c, %d, %d), %p);\n", SCARG(uap, fd),
108 dir, c, num, argsiz, SCARG(uap, data));
109 #endif
110 fdp = p->p_fd;
111 cmd = SCARG(uap, com);
112
113 if ((fp = fd_getfile(fdp, SCARG(uap, fd))) == NULL)
114 return EBADF;
115
116 if ((fp->f_flag & (FREAD | FWRITE)) == 0)
117 return EBADF;
118
119 switch (cmd & 0xff00) {
120 case SVR4_tIOC:
121 fun = svr4_ttold_ioctl;
122 break;
123
124 case SVR4_TIOC:
125 fun = svr4_term_ioctl;
126 break;
127
128 case SVR4_STR:
129 fun = svr4_stream_ioctl;
130 break;
131
132 case SVR4_FIOC:
133 fun = svr4_fil_ioctl;
134 break;
135
136 case SVR4_SIOC:
137 fun = svr4_sock_ioctl;
138 break;
139
140 case SVR4_jIOC:
141 fun = svr4_jerq_ioctl;
142 break;
143
144 case SVR4_XIOC:
145 /* We do not support those */
146 error = EINVAL;
147 goto out;
148
149 default:
150 DPRINTF(("Unimplemented ioctl %lx\n", cmd));
151 error = 0; /* XXX: really ENOSYS */
152 goto out;
153 }
154 FREF(fp);
155 error = (*fun)(fp, p, retval, SCARG(uap, fd), cmd, SCARG(uap, data));
156 FRELE(fp);
157 out:
158 return (error);
159 }