proc->thread stage 4: rework the VFS and DEVICE subsystems to take thread
[dragonfly.git] / sys / emulation / svr4 / svr4_ioctl.c
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1/*
2 * Copyright (c) 1998 Mark Newton
3 * Copyright (c) 1994 Christos Zoulas
4 * All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 * 3. The name of the author may not be used to endorse or promote products
15 * derived from this software without specific prior written permission
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
18 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
19 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
20 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
21 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
22 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
23 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
24 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
25 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
26 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
27 *
28 * $FreeBSD: src/sys/svr4/svr4_ioctl.c,v 1.6 1999/12/08 12:00:48 newton Exp $
dadab5e9 29 * $DragonFly: src/sys/emulation/svr4/Attic/svr4_ioctl.c,v 1.6 2003/06/25 03:56:09 dillon Exp $
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30 */
31
32#include <sys/param.h>
33#include <sys/proc.h>
34#include <sys/file.h>
35#include <sys/filedesc.h>
36#include <sys/fcntl.h>
37#include <sys/socket.h>
38#include <sys/socketvar.h>
39#include <sys/systm.h>
40
41#include <svr4/svr4.h>
42#include <svr4/svr4_types.h>
43#include <svr4/svr4_util.h>
44#include <svr4/svr4_signal.h>
45#include <svr4/svr4_proto.h>
46#include <svr4/svr4_stropts.h>
47#include <svr4/svr4_ioctl.h>
48#include <svr4/svr4_termios.h>
49#include <svr4/svr4_ttold.h>
50#include <svr4/svr4_filio.h>
51#include <svr4/svr4_sockio.h>
52
53#ifdef DEBUG_SVR4
54static void svr4_decode_cmd __P((u_long, char *, char *, int *, int *));
55/*
56 * Decode an ioctl command symbolically
57 */
58static void
59svr4_decode_cmd(cmd, dir, c, num, argsiz)
60 u_long cmd;
61 char *dir, *c;
62 int *num, *argsiz;
63{
64 if (cmd & SVR4_IOC_VOID)
65 *dir++ = 'V';
66 if (cmd & SVR4_IOC_IN)
67 *dir++ = 'R';
68 if (cmd & SVR4_IOC_OUT)
69 *dir++ = 'W';
70 *dir = '\0';
71 if (cmd & SVR4_IOC_INOUT)
72 *argsiz = (cmd >> 16) & 0xff;
73 else
74 *argsiz = -1;
75
76 *c = (cmd >> 8) & 0xff;
77 *num = cmd & 0xff;
78}
79#endif
80
81int
41c20dac 82svr4_sys_ioctl(struct svr4_sys_ioctl_args *uap)
984263bc 83{
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84 struct thread *td = curthread;
85 struct proc *p = td->td_proc;
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86 int *retval;
87 struct file *fp;
88 struct filedesc *fdp;
89 u_long cmd;
dadab5e9 90 int (*fun) __P((struct file *, struct thread *, register_t *,
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91 int, u_long, caddr_t));
92#ifdef DEBUG_SVR4
93 char dir[4];
94 char c;
95 int num;
96 int argsiz;
97
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98 KKASSERT(p);
99
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100 svr4_decode_cmd(SCARG(uap, com), dir, &c, &num, &argsiz);
101
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102 DPRINTF(("svr4_ioctl[%lx](%d, _IO%s(%c, %d, %d), %p);\n",
103 SCARG(uap, com), SCARG(uap, fd),
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104 dir, c, num, argsiz, SCARG(uap, data)));
105#endif
106 retval = p->p_retval;
107 fdp = p->p_fd;
108 cmd = SCARG(uap, com);
109
110 if ((u_int)SCARG(uap, fd) >= fdp->fd_nfiles ||
111 (fp = fdp->fd_ofiles[SCARG(uap, fd)]) == NULL)
112 return EBADF;
113
114 if ((fp->f_flag & (FREAD | FWRITE)) == 0)
115 return EBADF;
116
117#if defined(DEBUG_SVR4)
118 if (fp->f_type == DTYPE_SOCKET) {
1e550cf1 119 struct socket *so = (struct socket *)fp->f_data;
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120 DPRINTF(("<<< IN: so_state = 0x%x\n", so->so_state));
121 }
122#endif
123
124 switch (cmd & 0xff00) {
125 case SVR4_tIOC:
126 DPRINTF(("ttold\n"));
127 fun = svr4_ttold_ioctl;
128 break;
129
130 case SVR4_TIOC:
131 DPRINTF(("term\n"));
132 fun = svr4_term_ioctl;
133 break;
134
135 case SVR4_STR:
136 DPRINTF(("stream\n"));
137 fun = svr4_stream_ioctl;
138 break;
139
140 case SVR4_FIOC:
141 DPRINTF(("file\n"));
142 fun = svr4_fil_ioctl;
143 break;
144
145 case SVR4_SIOC:
146 DPRINTF(("socket\n"));
147 fun = svr4_sock_ioctl;
148 break;
149
150 case SVR4_XIOC:
151 /* We do not support those */
152 return EINVAL;
153
154 default:
155 DPRINTF(("Unimplemented ioctl %lx\n", cmd));
156 return 0; /* XXX: really ENOSYS */
157 }
158#if defined(DEBUG_SVR4)
159 if (fp->f_type == DTYPE_SOCKET) {
1e550cf1 160 struct socket *so = (struct socket *)fp->f_data;
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161 DPRINTF((">>> OUT: so_state = 0x%x\n", so->so_state));
162 }
163#endif
dadab5e9 164 return (*fun)(fp, td, retval, SCARG(uap, fd), cmd, SCARG(uap, data));
984263bc 165}