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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 | /* $Id: irixioctl.c,v 1.2 1997/12/02 05:51:06 ralf Exp $ * irixioctl.c: A fucking mess... * * Copyright (C) 1996 David S. Miller (dm@engr.sgi.com) */ #include <linux/kernel.h> #include <linux/sched.h> #include <linux/fs.h> #include <linux/mm.h> #include <linux/smp.h> #include <linux/smp_lock.h> #include <linux/tty.h> #include <asm/uaccess.h> #include <asm/ioctl.h> #include <asm/ioctls.h> #undef DEBUG_IOCTLS #undef DEBUG_MISSING_IOCTL struct irix_termios { tcflag_t c_iflag, c_oflag, c_cflag, c_lflag; cc_t c_cc[NCCS]; }; extern asmlinkage int sys_ioctl(unsigned int fd, unsigned int cmd, unsigned long arg); extern asmlinkage int sys_write(unsigned int fd,char * buf,unsigned int count); extern void start_tty(struct tty_struct *tty); static struct tty_struct *get_tty(int fd) { struct file *filp; if(fd >= NR_OPEN || !(filp = current->files->fd[fd])) return ((struct tty_struct *) 0); if(filp->private_data) { struct tty_struct *ttyp = (struct tty_struct *) filp->private_data; if(ttyp->magic == TTY_MAGIC) return ttyp; } return ((struct tty_struct *) 0); } static struct tty_struct *get_real_tty(struct tty_struct *tp) { if(tp->driver.type == TTY_DRIVER_TYPE_PTY && tp->driver.subtype == PTY_TYPE_MASTER) return tp->link; else return tp; } asmlinkage int irix_ioctl(int fd, unsigned long cmd, unsigned long arg) { struct tty_struct *tp, *rtp; int error = 0; int old_fs; lock_kernel(); #ifdef DEBUG_IOCTLS printk("[%s:%d] irix_ioctl(%d, ", current->comm, current->pid, fd); #endif switch(cmd) { case 0x00005401: #ifdef DEBUG_IOCTLS printk("TCGETA, %08lx) ", arg); #endif error = sys_ioctl(fd, TCGETA, arg); break; case 0x0000540d: { struct termios kt; struct irix_termios *it = (struct irix_termios *) arg; #ifdef DEBUG_IOCTLS printk("TCGETS, %08lx) ", arg); #endif if(!access_ok(VERIFY_WRITE, it, sizeof(*it))) { error = -EFAULT; break; } old_fs = get_fs(); set_fs(get_ds()); error = sys_ioctl(fd, TCGETS, (unsigned long) &kt); set_fs(old_fs); if(error) break; __put_user(kt.c_iflag, &it->c_iflag); __put_user(kt.c_oflag, &it->c_oflag); __put_user(kt.c_cflag, &it->c_cflag); __put_user(kt.c_lflag, &it->c_lflag); for(error = 0; error < NCCS; error++) __put_user(kt.c_cc[error], &it->c_cc[error]); error = 0; break; } case 0x0000540e: { struct termios kt; struct irix_termios *it = (struct irix_termios *) arg; #ifdef DEBUG_IOCTLS printk("TCSETS, %08lx) ", arg); #endif if(!access_ok(VERIFY_READ, it, sizeof(*it))) { error = -EFAULT; break; } old_fs = get_fs(); set_fs(get_ds()); error = sys_ioctl(fd, TCGETS, (unsigned long) &kt); set_fs(old_fs); if(error) break; __get_user(kt.c_iflag, &it->c_iflag); __get_user(kt.c_oflag, &it->c_oflag); __get_user(kt.c_cflag, &it->c_cflag); __get_user(kt.c_lflag, &it->c_lflag); for(error = 0; error < NCCS; error++) __get_user(kt.c_cc[error], &it->c_cc[error]); old_fs = get_fs(); set_fs(get_ds()); error = sys_ioctl(fd, TCSETS, (unsigned long) &kt); set_fs(old_fs); break; } case 0x0000540f: #ifdef DEBUG_IOCTLS printk("TCSETSW, %08lx) ", arg); #endif error = sys_ioctl(fd, TCSETSW, arg); break; case 0x00005471: #ifdef DEBUG_IOCTLS printk("TIOCNOTTY, %08lx) ", arg); #endif error = sys_ioctl(fd, TIOCNOTTY, arg); break; case 0x00007416: #ifdef DEBUG_IOCTLS printk("TIOCGSID, %08lx) ", arg); #endif tp = get_tty(fd); if(!tp) { error = -EINVAL; break; } rtp = get_real_tty(tp); #ifdef DEBUG_IOCTLS printk("rtp->session=%d ", rtp->session); #endif error = put_user(rtp->session, (unsigned long *) arg); break; case 0x746e: /* TIOCSTART, same effect as hitting ^Q */ #ifdef DEBUG_IOCTLS printk("TIOCSTART, %08lx) ", arg); #endif tp = get_tty(fd); if(!tp) { error = -EINVAL; break; } rtp = get_real_tty(tp); start_tty(rtp); break; case 0x20006968: #ifdef DEBUG_IOCTLS printk("SIOCGETLABEL, %08lx) ", arg); #endif error = -ENOPKG; break; case 0x40047477: #ifdef DEBUG_IOCTLS printk("TIOCGPGRP, %08lx) ", arg); #endif error = sys_ioctl(fd, TIOCGPGRP, arg); #ifdef DEBUG_IOCTLS printk("arg=%d ", *(int *)arg); #endif break; case 0x40087468: #ifdef DEBUG_IOCTLS printk("TIOCGWINSZ, %08lx) ", arg); #endif error = sys_ioctl(fd, TIOCGWINSZ, arg); break; case 0x8004667e: #ifdef DEBUG_IOCTLS printk("FIONBIO, %08lx) arg=%d ", arg, *(int *)arg); #endif error = sys_ioctl(fd, FIONBIO, arg); break; case 0x80047476: #ifdef DEBUG_IOCTLS printk("TIOCSPGRP, %08lx) arg=%d ", arg, *(int *)arg); #endif error = sys_ioctl(fd, TIOCSPGRP, arg); break; case 0x8020690c: #ifdef DEBUG_IOCTLS printk("SIOCSIFADDR, %08lx) arg=%d ", arg, *(int *)arg); #endif error = sys_ioctl(fd, SIOCSIFADDR, arg); break; case 0x80206910: #ifdef DEBUG_IOCTLS printk("SIOCSIFFLAGS, %08lx) arg=%d ", arg, *(int *)arg); #endif error = sys_ioctl(fd, SIOCSIFFLAGS, arg); break; case 0xc0206911: #ifdef DEBUG_IOCTLS printk("SIOCGIFFLAGS, %08lx) arg=%d ", arg, *(int *)arg); #endif error = sys_ioctl(fd, SIOCGIFFLAGS, arg); break; case 0xc020691b: #ifdef DEBUG_IOCTLS printk("SIOCGIFMETRIC, %08lx) arg=%d ", arg, *(int *)arg); #endif error = sys_ioctl(fd, SIOCGIFMETRIC, arg); break; default: { #ifdef DEBUG_MISSING_IOCTL char *msg = "Unimplemented IOCTL cmd tell dm@engr.sgi.com\n"; #ifdef DEBUG_IOCTLS printk("UNIMP_IOCTL, %08lx)\n", arg); #endif old_fs = get_fs(); set_fs(get_ds()); sys_write(2, msg, strlen(msg)); set_fs(old_fs); printk("[%s:%d] Does unimplemented IRIX ioctl cmd %08lx\n", current->comm, current->pid, cmd); do_exit(255); #else error = sys_ioctl (fd, cmd, arg); #endif } }; #ifdef DEBUG_IOCTLS printk("error=%d\n", error); #endif unlock_kernel(); return error; } |