arch/sparc/kernel/sunos_ioctl.c

   1 /* $Id: sunos_ioctl.c,v 1.34 2000/09/03 14:10:56 anton Exp $
   2  * sunos_ioctl.c: The Linux Operating system: SunOS ioctl compatibility.
   3  *
   4  * Copyright (C) 1995 Miguel de Icaza (miguel@nuclecu.unam.mx)
   5  * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu)
   6  */
   7
   8 #include <asm/uaccess.h>
   9
  10 #include <linux/sched.h>
  11 #include <linux/errno.h>
  12 #include <linux/string.h>
  13 #include <linux/termios.h>
  14 #include <linux/ioctl.h>
  15 #include <linux/route.h>
  16 #include <linux/sockios.h>
  17 #include <linux/if.h>
  18 #include <linux/netdevice.h>
  19 #include <linux/if_arp.h>
  20 #include <linux/fs.h>
  21 #include <linux/mm.h>
  22 #include <linux/smp.h>
  23 #include <linux/smp_lock.h>
  24 #include <linux/syscalls.h>
  25 #include <linux/file.h>
  26 #include <asm/kbio.h>
  27
  28 #if 0
  29 extern char sunkbd_type;
  30 extern char sunkbd_layout;
  31 #endif
  32
  33 /* NR_OPEN is now larger and dynamic in recent kernels. */
  34 #define SUNOS_NR_OPEN   256
  35
  36 asmlinkage int sunos_ioctl (int fd, unsigned long cmd, unsigned long arg)
  37 {
  38         int ret = -EBADF;
  39
  40         if (fd >= SUNOS_NR_OPEN || !fcheck(fd))
  41                 goto out;
  42
  43         /* First handle an easy compat. case for tty ldisc. */
  44         if (cmd == TIOCSETD) {
  45                 int __user *p;
  46                 int ntty = N_TTY, tmp;
  47                 mm_segment_t oldfs;
  48
  49                 p = (int __user *) arg;
  50                 ret = -EFAULT;
  51                 if (get_user(tmp, p))
  52                         goto out;
  53                 if (tmp == 2) {
  54                         oldfs = get_fs();
  55                         set_fs(KERNEL_DS);
  56                         ret = sys_ioctl(fd, cmd, (unsigned long) &ntty);
  57                         set_fs(oldfs);
  58                         ret = (ret == -EINVAL ? -EOPNOTSUPP : ret);
  59                         goto out;
  60                 }
  61         }
  62
  63         /* Binary compatibility is good American knowhow fuckin' up. */
  64         if (cmd == TIOCNOTTY) {
  65                 ret = sys_setsid();
  66                 goto out;
  67         }
  68
  69         /* SunOS networking ioctls. */
  70         switch (cmd) {
  71         case _IOW('r', 10, struct rtentry):
  72                 ret = sys_ioctl(fd, SIOCADDRT, arg);
  73                 goto out;
  74         case _IOW('r', 11, struct rtentry):
  75                 ret = sys_ioctl(fd, SIOCDELRT, arg);
  76                 goto out;
  77         case _IOW('i', 12, struct ifreq):
  78                 ret = sys_ioctl(fd, SIOCSIFADDR, arg);
  79                 goto out;
  80         case _IOWR('i', 13, struct ifreq):
  81                 ret = sys_ioctl(fd, SIOCGIFADDR, arg);
  82                 goto out;
  83         case _IOW('i', 14, struct ifreq):
  84                 ret = sys_ioctl(fd, SIOCSIFDSTADDR, arg);
  85                 goto out;
  86         case _IOWR('i', 15, struct ifreq):
  87                 ret = sys_ioctl(fd, SIOCGIFDSTADDR, arg);
  88                 goto out;
  89         case _IOW('i', 16, struct ifreq):
  90                 ret = sys_ioctl(fd, SIOCSIFFLAGS, arg);
  91                 goto out;
  92         case _IOWR('i', 17, struct ifreq):
  93                 ret = sys_ioctl(fd, SIOCGIFFLAGS, arg);
  94                 goto out;
  95         case _IOW('i', 18, struct ifreq):
  96                 ret = sys_ioctl(fd, SIOCSIFMEM, arg);
  97                 goto out;
  98         case _IOWR('i', 19, struct ifreq):
  99                 ret = sys_ioctl(fd, SIOCGIFMEM, arg);
 100                 goto out;
 101         case _IOWR('i', 20, struct ifconf):
 102                 ret = sys_ioctl(fd, SIOCGIFCONF, arg);
 103                 goto out;
 104         case _IOW('i', 21, struct ifreq): /* SIOCSIFMTU */
 105                 ret = sys_ioctl(fd, SIOCSIFMTU, arg);
 106                 goto out;
 107         case _IOWR('i', 22, struct ifreq): /* SIOCGIFMTU */
 108                 ret = sys_ioctl(fd, SIOCGIFMTU, arg);
 109                 goto out;
 110
 111         case _IOWR('i', 23, struct ifreq):
 112                 ret = sys_ioctl(fd, SIOCGIFBRDADDR, arg);
 113                 goto out;
 114         case _IOW('i', 24, struct ifreq):
 115                 ret = sys_ioctl(fd, SIOCSIFBRDADDR, arg);
 116                 goto out;
 117         case _IOWR('i', 25, struct ifreq):
 118                 ret = sys_ioctl(fd, SIOCGIFNETMASK, arg);
 119                 goto out;
 120         case _IOW('i', 26, struct ifreq):
 121                 ret = sys_ioctl(fd, SIOCSIFNETMASK, arg);
 122                 goto out;
 123         case _IOWR('i', 27, struct ifreq):
 124                 ret = sys_ioctl(fd, SIOCGIFMETRIC, arg);
 125                 goto out;
 126         case _IOW('i', 28, struct ifreq):
 127                 ret = sys_ioctl(fd, SIOCSIFMETRIC, arg);
 128                 goto out;
 129
 130         case _IOW('i', 30, struct arpreq):
 131                 ret = sys_ioctl(fd, SIOCSARP, arg);
 132                 goto out;
 133         case _IOWR('i', 31, struct arpreq):
 134                 ret = sys_ioctl(fd, SIOCGARP, arg);
 135                 goto out;
 136         case _IOW('i', 32, struct arpreq):
 137                 ret = sys_ioctl(fd, SIOCDARP, arg);
 138                 goto out;
 139
 140         case _IOW('i', 40, struct ifreq): /* SIOCUPPER */
 141         case _IOW('i', 41, struct ifreq): /* SIOCLOWER */
 142         case _IOW('i', 44, struct ifreq): /* SIOCSETSYNC */
 143         case _IOW('i', 45, struct ifreq): /* SIOCGETSYNC */
 144         case _IOW('i', 46, struct ifreq): /* SIOCSSDSTATS */
 145         case _IOW('i', 47, struct ifreq): /* SIOCSSESTATS */
 146         case _IOW('i', 48, struct ifreq): /* SIOCSPROMISC */
 147                 ret = -EOPNOTSUPP;
 148                 goto out;
 149
 150         case _IOW('i', 49, struct ifreq):
 151                 ret = sys_ioctl(fd, SIOCADDMULTI, arg);
 152                 goto out;
 153         case _IOW('i', 50, struct ifreq):
 154                 ret = sys_ioctl(fd, SIOCDELMULTI, arg);
 155                 goto out;
 156
 157         /* FDDI interface ioctls, unsupported. */
 158
 159         case _IOW('i', 51, struct ifreq): /* SIOCFDRESET */
 160         case _IOW('i', 52, struct ifreq): /* SIOCFDSLEEP */
 161         case _IOW('i', 53, struct ifreq): /* SIOCSTRTFMWAR */
 162         case _IOW('i', 54, struct ifreq): /* SIOCLDNSTRTFW */
 163         case _IOW('i', 55, struct ifreq): /* SIOCGETFDSTAT */
 164         case _IOW('i', 56, struct ifreq): /* SIOCFDNMIINT */
 165         case _IOW('i', 57, struct ifreq): /* SIOCFDEXUSER */
 166         case _IOW('i', 58, struct ifreq): /* SIOCFDGNETMAP */
 167         case _IOW('i', 59, struct ifreq): /* SIOCFDGIOCTL */
 168                 printk("FDDI ioctl, returning EOPNOTSUPP\n");
 169                 ret = -EOPNOTSUPP;
 170                 goto out;
 171
 172         case _IOW('t', 125, int):
 173                 /* More stupid tty sunos ioctls, just
 174                  * say it worked.
 175                  */
 176                 ret = 0;
 177                 goto out;
 178         /* Non posix grp */
 179         case _IOW('t', 118, int): {
 180                 int oldval, newval, __user *ptr;
 181
 182                 cmd = TIOCSPGRP;
 183                 ptr = (int __user *) arg;
 184                 ret = -EFAULT;
 185                 if (get_user(oldval, ptr))
 186                         goto out;
 187                 ret = sys_ioctl(fd, cmd, arg);
 188                 __get_user(newval, ptr);
 189                 if (newval == -1) {
 190                         __put_user(oldval, ptr);
 191                         ret = -EIO;
 192                 }
 193                 if (ret == -ENOTTY)
 194                         ret = -EIO;
 195                 goto out;
 196         }
 197
 198         case _IOR('t', 119, int): {
 199                 int oldval, newval, __user *ptr;
 200
 201                 cmd = TIOCGPGRP;
 202                 ptr = (int __user *) arg;
 203                 ret = -EFAULT;
 204                 if (get_user(oldval, ptr))
 205                         goto out;
 206                 ret = sys_ioctl(fd, cmd, arg);
 207                 __get_user(newval, ptr);
 208                 if (newval == -1) {
 209                         __put_user(oldval, ptr);
 210                         ret = -EIO;
 211                 }
 212                 if (ret == -ENOTTY)
 213                         ret = -EIO;
 214                 goto out;
 215         }
 216         }
 217
 218 #if 0
 219         if ((cmd & 0xff00) == ('k' << 8)) {
 220                 printk ("[[KBIO: %8.8x\n", (unsigned int) cmd);
 221         }
 222 #endif
 223
 224         ret = sys_ioctl(fd, cmd, arg);
 225         /* so stupid... */
 226         ret = (ret == -EINVAL ? -EOPNOTSUPP : ret);
 227 out:
 228         return ret;
 229 }
 230
 231