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-rw-r--r--arch/mips/kernel/irixioctl.c261
1 files changed, 261 insertions, 0 deletions
diff --git a/arch/mips/kernel/irixioctl.c b/arch/mips/kernel/irixioctl.c
new file mode 100644
index 000000000000..4cd3d38a22c2
--- /dev/null
+++ b/arch/mips/kernel/irixioctl.c
@@ -0,0 +1,261 @@
1/*
2 * irixioctl.c: A fucking mess...
3 *
4 * Copyright (C) 1996 David S. Miller (dm@engr.sgi.com)
5 */
6
7#include <linux/kernel.h>
8#include <linux/sched.h>
9#include <linux/fs.h>
10#include <linux/mm.h>
11#include <linux/smp.h>
12#include <linux/smp_lock.h>
13#include <linux/sockios.h>
14#include <linux/syscalls.h>
15#include <linux/tty.h>
16#include <linux/file.h>
17
18#include <asm/uaccess.h>
19#include <asm/ioctl.h>
20#include <asm/ioctls.h>
21
22#undef DEBUG_IOCTLS
23#undef DEBUG_MISSING_IOCTL
24
25struct irix_termios {
26 tcflag_t c_iflag, c_oflag, c_cflag, c_lflag;
27 cc_t c_cc[NCCS];
28};
29
30extern void start_tty(struct tty_struct *tty);
31static struct tty_struct *get_tty(int fd)
32{
33 struct file *filp;
34 struct tty_struct *ttyp = NULL;
35
36 spin_lock(&current->files->file_lock);
37 filp = fcheck(fd);
38 if(filp && filp->private_data) {
39 ttyp = (struct tty_struct *) filp->private_data;
40
41 if(ttyp->magic != TTY_MAGIC)
42 ttyp =NULL;
43 }
44 spin_unlock(&current->files->file_lock);
45 return ttyp;
46}
47
48static struct tty_struct *get_real_tty(struct tty_struct *tp)
49{
50 if (tp->driver->type == TTY_DRIVER_TYPE_PTY &&
51 tp->driver->subtype == PTY_TYPE_MASTER)
52 return tp->link;
53 else
54 return tp;
55}
56
57asmlinkage int irix_ioctl(int fd, unsigned long cmd, unsigned long arg)
58{
59 struct tty_struct *tp, *rtp;
60 mm_segment_t old_fs;
61 int error = 0;
62
63#ifdef DEBUG_IOCTLS
64 printk("[%s:%d] irix_ioctl(%d, ", current->comm, current->pid, fd);
65#endif
66 switch(cmd) {
67 case 0x00005401:
68#ifdef DEBUG_IOCTLS
69 printk("TCGETA, %08lx) ", arg);
70#endif
71 error = sys_ioctl(fd, TCGETA, arg);
72 break;
73
74 case 0x0000540d: {
75 struct termios kt;
76 struct irix_termios *it = (struct irix_termios *) arg;
77
78#ifdef DEBUG_IOCTLS
79 printk("TCGETS, %08lx) ", arg);
80#endif
81 if(!access_ok(VERIFY_WRITE, it, sizeof(*it))) {
82 error = -EFAULT;
83 break;
84 }
85 old_fs = get_fs(); set_fs(get_ds());
86 error = sys_ioctl(fd, TCGETS, (unsigned long) &kt);
87 set_fs(old_fs);
88 if (error)
89 break;
90 __put_user(kt.c_iflag, &it->c_iflag);
91 __put_user(kt.c_oflag, &it->c_oflag);
92 __put_user(kt.c_cflag, &it->c_cflag);
93 __put_user(kt.c_lflag, &it->c_lflag);
94 for(error = 0; error < NCCS; error++)
95 __put_user(kt.c_cc[error], &it->c_cc[error]);
96 error = 0;
97 break;
98 }
99
100 case 0x0000540e: {
101 struct termios kt;
102 struct irix_termios *it = (struct irix_termios *) arg;
103
104#ifdef DEBUG_IOCTLS
105 printk("TCSETS, %08lx) ", arg);
106#endif
107 if (!access_ok(VERIFY_READ, it, sizeof(*it))) {
108 error = -EFAULT;
109 break;
110 }
111 old_fs = get_fs(); set_fs(get_ds());
112 error = sys_ioctl(fd, TCGETS, (unsigned long) &kt);
113 set_fs(old_fs);
114 if(error)
115 break;
116 __get_user(kt.c_iflag, &it->c_iflag);
117 __get_user(kt.c_oflag, &it->c_oflag);
118 __get_user(kt.c_cflag, &it->c_cflag);
119 __get_user(kt.c_lflag, &it->c_lflag);
120 for(error = 0; error < NCCS; error++)
121 __get_user(kt.c_cc[error], &it->c_cc[error]);
122 old_fs = get_fs(); set_fs(get_ds());
123 error = sys_ioctl(fd, TCSETS, (unsigned long) &kt);
124 set_fs(old_fs);
125 break;
126 }
127
128 case 0x0000540f:
129#ifdef DEBUG_IOCTLS
130 printk("TCSETSW, %08lx) ", arg);
131#endif
132 error = sys_ioctl(fd, TCSETSW, arg);
133 break;
134
135 case 0x00005471:
136#ifdef DEBUG_IOCTLS
137 printk("TIOCNOTTY, %08lx) ", arg);
138#endif
139 error = sys_ioctl(fd, TIOCNOTTY, arg);
140 break;
141
142 case 0x00007416:
143#ifdef DEBUG_IOCTLS
144 printk("TIOCGSID, %08lx) ", arg);
145#endif
146 tp = get_tty(fd);
147 if(!tp) {
148 error = -EINVAL;
149 break;
150 }
151 rtp = get_real_tty(tp);
152#ifdef DEBUG_IOCTLS
153 printk("rtp->session=%d ", rtp->session);
154#endif
155 error = put_user(rtp->session, (unsigned long *) arg);
156 break;
157
158 case 0x746e:
159 /* TIOCSTART, same effect as hitting ^Q */
160#ifdef DEBUG_IOCTLS
161 printk("TIOCSTART, %08lx) ", arg);
162#endif
163 tp = get_tty(fd);
164 if(!tp) {
165 error = -EINVAL;
166 break;
167 }
168 rtp = get_real_tty(tp);
169 start_tty(rtp);
170 break;
171
172 case 0x20006968:
173#ifdef DEBUG_IOCTLS
174 printk("SIOCGETLABEL, %08lx) ", arg);
175#endif
176 error = -ENOPKG;
177 break;
178
179 case 0x40047477:
180#ifdef DEBUG_IOCTLS
181 printk("TIOCGPGRP, %08lx) ", arg);
182#endif
183 error = sys_ioctl(fd, TIOCGPGRP, arg);
184#ifdef DEBUG_IOCTLS
185 printk("arg=%d ", *(int *)arg);
186#endif
187 break;
188
189 case 0x40087468:
190#ifdef DEBUG_IOCTLS
191 printk("TIOCGWINSZ, %08lx) ", arg);
192#endif
193 error = sys_ioctl(fd, TIOCGWINSZ, arg);
194 break;
195
196 case 0x8004667e:
197#ifdef DEBUG_IOCTLS
198 printk("FIONBIO, %08lx) arg=%d ", arg, *(int *)arg);
199#endif
200 error = sys_ioctl(fd, FIONBIO, arg);
201 break;
202
203 case 0x80047476:
204#ifdef DEBUG_IOCTLS
205 printk("TIOCSPGRP, %08lx) arg=%d ", arg, *(int *)arg);
206#endif
207 error = sys_ioctl(fd, TIOCSPGRP, arg);
208 break;
209
210 case 0x8020690c:
211#ifdef DEBUG_IOCTLS
212 printk("SIOCSIFADDR, %08lx) arg=%d ", arg, *(int *)arg);
213#endif
214 error = sys_ioctl(fd, SIOCSIFADDR, arg);
215 break;
216
217 case 0x80206910:
218#ifdef DEBUG_IOCTLS
219 printk("SIOCSIFFLAGS, %08lx) arg=%d ", arg, *(int *)arg);
220#endif
221 error = sys_ioctl(fd, SIOCSIFFLAGS, arg);
222 break;
223
224 case 0xc0206911:
225#ifdef DEBUG_IOCTLS
226 printk("SIOCGIFFLAGS, %08lx) arg=%d ", arg, *(int *)arg);
227#endif
228 error = sys_ioctl(fd, SIOCGIFFLAGS, arg);
229 break;
230
231 case 0xc020691b:
232#ifdef DEBUG_IOCTLS
233 printk("SIOCGIFMETRIC, %08lx) arg=%d ", arg, *(int *)arg);
234#endif
235 error = sys_ioctl(fd, SIOCGIFMETRIC, arg);
236 break;
237
238 default: {
239#ifdef DEBUG_MISSING_IOCTL
240 char *msg = "Unimplemented IOCTL cmd tell linux@engr.sgi.com\n";
241
242#ifdef DEBUG_IOCTLS
243 printk("UNIMP_IOCTL, %08lx)\n", arg);
244#endif
245 old_fs = get_fs(); set_fs(get_ds());
246 sys_write(2, msg, strlen(msg));
247 set_fs(old_fs);
248 printk("[%s:%d] Does unimplemented IRIX ioctl cmd %08lx\n",
249 current->comm, current->pid, cmd);
250 do_exit(255);
251#else
252 error = sys_ioctl (fd, cmd, arg);
253#endif
254 }
255
256 };
257#ifdef DEBUG_IOCTLS
258 printk("error=%d\n", error);
259#endif
260 return error;
261}
generated by cgit v1.2.2 (git 2.25.0) at 2024-12-30 18:23:21 -0500