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
29 #include <sys/cdefs.h>
30 __FBSDID("$FreeBSD$");
31
32 #include <sys/param.h>
33 #include <sys/proc.h>
34 #include <sys/capsicum.h>
35 #include <sys/file.h>
36 #include <sys/filedesc.h>
37 #include <sys/fcntl.h>
38 #include <sys/socket.h>
39 #include <sys/socketvar.h>
40 #include <sys/systm.h>
41
42 #include <compat/svr4/svr4.h>
43 #include <compat/svr4/svr4_types.h>
44 #include <compat/svr4/svr4_util.h>
45 #include <compat/svr4/svr4_signal.h>
46 #include <compat/svr4/svr4_proto.h>
47 #include <compat/svr4/svr4_stropts.h>
48 #include <compat/svr4/svr4_ioctl.h>
49 #include <compat/svr4/svr4_termios.h>
50 #include <compat/svr4/svr4_filio.h>
51 #include <compat/svr4/svr4_sockio.h>
52
53 #ifdef DEBUG_SVR4
54 static void svr4_decode_cmd(u_long, char *, char *, int *, int *);
55 /*
56 * Decode an ioctl command symbolically
57 */
58 static void
svr4_decode_cmd(cmd,dir,c,num,argsiz)59 svr4_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
81 int
svr4_sys_ioctl(td,uap)82 svr4_sys_ioctl(td, uap)
83 struct thread *td;
84 struct svr4_sys_ioctl_args *uap;
85 {
86 int *retval;
87 cap_rights_t rights;
88 struct file *fp;
89 u_long cmd;
90 int (*fun)(struct file *, struct thread *, register_t *,
91 int, u_long, caddr_t);
92 int error;
93 #ifdef DEBUG_SVR4
94 char dir[4];
95 char c;
96 int num;
97 int argsiz;
98
99 svr4_decode_cmd(uap->com, dir, &c, &num, &argsiz);
100
101 DPRINTF(("svr4_ioctl[%lx](%d, _IO%s(%c, %d, %d), %p);\n", uap->com, uap->fd,
102 dir, c, num, argsiz, uap->data));
103 #endif
104 retval = td->td_retval;
105 cmd = uap->com;
106
107 error = fget(td, uap->fd, cap_rights_init(&rights, CAP_IOCTL), &fp);
108 if (error != 0)
109 return (error);
110
111 if ((fp->f_flag & (FREAD | FWRITE)) == 0) {
112 fdrop(fp, td);
113 return EBADF;
114 }
115
116 #if defined(DEBUG_SVR4)
117 if (fp->f_type == DTYPE_SOCKET) {
118 struct socket *so = fp->f_data;
119 DPRINTF(("<<< IN: so_state = 0x%x\n", so->so_state));
120 }
121 #endif
122
123 switch (cmd & 0xff00) {
124 case SVR4_TIOC:
125 DPRINTF(("term\n"));
126 fun = svr4_term_ioctl;
127 break;
128
129 case SVR4_STR:
130 DPRINTF(("stream\n"));
131 fun = svr4_stream_ioctl;
132 break;
133
134 case SVR4_FIOC:
135 DPRINTF(("file\n"));
136 fun = svr4_fil_ioctl;
137 break;
138
139 case SVR4_SIOC:
140 DPRINTF(("socket\n"));
141 fun = svr4_sock_ioctl;
142 break;
143
144 case SVR4_XIOC:
145 /* We do not support those */
146 fdrop(fp, td);
147 return EINVAL;
148
149 default:
150 fdrop(fp, td);
151 DPRINTF(("Unimplemented ioctl %lx\n", cmd));
152 return 0; /* XXX: really ENOSYS */
153 }
154 #if defined(DEBUG_SVR4)
155 if (fp->f_type == DTYPE_SOCKET) {
156 struct socket *so;
157
158 so = fp->f_data;
159 DPRINTF((">>> OUT: so_state = 0x%x\n", so->so_state));
160 }
161 #endif
162 error = (*fun)(fp, td, retval, uap->fd, cmd, uap->data);
163 fdrop(fp, td);
164 return (error);
165 }
166