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b835996f62
With the use of RCU in files structure, the look-up of files using fds can now be lock-free. The lookup is protected by rcu_read_lock()/rcu_read_unlock(). This patch changes the readers to use lock-free lookup. Signed-off-by: Maneesh Soni <maneesh@in.ibm.com> Signed-off-by: Ravikiran Thirumalai <kiran_th@gmail.com> Signed-off-by: Dipankar Sarma <dipankar@in.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
824 lines
21 KiB
C
824 lines
21 KiB
C
/* $Id: ioctl.c,v 1.17 2002/02/08 03:57:14 davem Exp $
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* ioctl.c: Solaris ioctl emulation.
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*
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* Copyright (C) 1997 Jakub Jelinek (jj@sunsite.mff.cuni.cz)
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* Copyright (C) 1997,1998 Patrik Rak (prak3264@ss1000.ms.mff.cuni.cz)
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*
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* Streams & timod emulation based on code
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* Copyright (C) 1995, 1996 Mike Jagdis (jaggy@purplet.demon.co.uk)
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*
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* 1999-08-19 Implemented solaris 'm' (mag tape) and
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* 'O' (openprom) ioctls, by Jason Rappleye
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* (rappleye@ccr.buffalo.edu)
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*/
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#include <linux/types.h>
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#include <linux/kernel.h>
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#include <linux/sched.h>
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#include <linux/smp.h>
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#include <linux/smp_lock.h>
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#include <linux/syscalls.h>
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#include <linux/ioctl.h>
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#include <linux/fs.h>
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#include <linux/file.h>
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#include <linux/netdevice.h>
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#include <linux/mtio.h>
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#include <linux/time.h>
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#include <linux/rcupdate.h>
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#include <linux/compat.h>
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#include <net/sock.h>
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#include <asm/uaccess.h>
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#include <asm/termios.h>
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#include <asm/openpromio.h>
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#include "conv.h"
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#include "socksys.h"
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extern asmlinkage int compat_sys_ioctl(unsigned int fd, unsigned int cmd,
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u32 arg);
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asmlinkage int solaris_ioctl(unsigned int fd, unsigned int cmd, u32 arg);
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extern int timod_putmsg(unsigned int fd, char __user *ctl_buf, int ctl_len,
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char __user *data_buf, int data_len, int flags);
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extern int timod_getmsg(unsigned int fd, char __user *ctl_buf, int ctl_maxlen, int __user *ctl_len,
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char __user *data_buf, int data_maxlen, int __user *data_len, int *flags);
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/* termio* stuff {{{ */
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struct solaris_termios {
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u32 c_iflag;
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u32 c_oflag;
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u32 c_cflag;
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u32 c_lflag;
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u8 c_cc[19];
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};
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struct solaris_termio {
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u16 c_iflag;
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u16 c_oflag;
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u16 c_cflag;
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u16 c_lflag;
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s8 c_line;
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u8 c_cc[8];
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};
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struct solaris_termiox {
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u16 x_hflag;
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u16 x_cflag;
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u16 x_rflag[5];
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u16 x_sflag;
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};
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static u32 solaris_to_linux_cflag(u32 cflag)
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{
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cflag &= 0x7fdff000;
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if (cflag & 0x200000) {
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int baud = cflag & 0xf;
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cflag &= ~0x20000f;
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switch (baud) {
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case 0: baud = B57600; break;
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case 1: baud = B76800; break;
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case 2: baud = B115200; break;
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case 3: baud = B153600; break;
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case 4: baud = B230400; break;
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case 5: baud = B307200; break;
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case 6: baud = B460800; break;
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}
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cflag |= CBAUDEX | baud;
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}
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return cflag;
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}
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static u32 linux_to_solaris_cflag(u32 cflag)
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{
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cflag &= ~(CMSPAR | CIBAUD);
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if (cflag & CBAUDEX) {
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int baud = cflag & CBAUD;
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cflag &= ~CBAUD;
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switch (baud) {
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case B57600: baud = 0; break;
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case B76800: baud = 1; break;
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case B115200: baud = 2; break;
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case B153600: baud = 3; break;
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case B230400: baud = 4; break;
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case B307200: baud = 5; break;
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case B460800: baud = 6; break;
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case B614400: baud = 7; break;
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case B921600: baud = 8; break;
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#if 0
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case B1843200: baud = 9; break;
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#endif
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}
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cflag |= 0x200000 | baud;
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}
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return cflag;
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}
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static inline int linux_to_solaris_termio(unsigned int fd, unsigned int cmd, u32 arg)
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{
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struct solaris_termio __user *p = A(arg);
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int ret;
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ret = sys_ioctl(fd, cmd, (unsigned long)p);
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if (!ret) {
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u32 cflag;
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if (__get_user (cflag, &p->c_cflag))
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return -EFAULT;
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cflag = linux_to_solaris_cflag(cflag);
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if (__put_user (cflag, &p->c_cflag))
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return -EFAULT;
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}
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return ret;
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}
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static int solaris_to_linux_termio(unsigned int fd, unsigned int cmd, u32 arg)
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{
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int ret;
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struct solaris_termio s;
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mm_segment_t old_fs = get_fs();
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if (copy_from_user (&s, (struct solaris_termio __user *)A(arg), sizeof(struct solaris_termio)))
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return -EFAULT;
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s.c_cflag = solaris_to_linux_cflag(s.c_cflag);
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set_fs(KERNEL_DS);
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ret = sys_ioctl(fd, cmd, (unsigned long)&s);
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set_fs(old_fs);
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return ret;
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}
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static inline int linux_to_solaris_termios(unsigned int fd, unsigned int cmd, u32 arg)
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{
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int ret;
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struct solaris_termios s;
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mm_segment_t old_fs = get_fs();
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set_fs(KERNEL_DS);
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ret = sys_ioctl(fd, cmd, (unsigned long)&s);
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set_fs(old_fs);
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if (!ret) {
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struct solaris_termios __user *p = A(arg);
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if (put_user (s.c_iflag, &p->c_iflag) ||
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__put_user (s.c_oflag, &p->c_oflag) ||
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__put_user (linux_to_solaris_cflag(s.c_cflag), &p->c_cflag) ||
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__put_user (s.c_lflag, &p->c_lflag) ||
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__copy_to_user (p->c_cc, s.c_cc, 16) ||
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__clear_user (p->c_cc + 16, 2))
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return -EFAULT;
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}
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return ret;
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}
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static int solaris_to_linux_termios(unsigned int fd, unsigned int cmd, u32 arg)
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{
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int ret;
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struct solaris_termios s;
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struct solaris_termios __user *p = A(arg);
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mm_segment_t old_fs = get_fs();
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set_fs(KERNEL_DS);
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ret = sys_ioctl(fd, TCGETS, (unsigned long)&s);
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set_fs(old_fs);
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if (ret) return ret;
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if (put_user (s.c_iflag, &p->c_iflag) ||
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__put_user (s.c_oflag, &p->c_oflag) ||
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__put_user (s.c_cflag, &p->c_cflag) ||
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__put_user (s.c_lflag, &p->c_lflag) ||
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__copy_from_user (s.c_cc, p->c_cc, 16))
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return -EFAULT;
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s.c_cflag = solaris_to_linux_cflag(s.c_cflag);
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set_fs(KERNEL_DS);
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ret = sys_ioctl(fd, cmd, (unsigned long)&s);
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set_fs(old_fs);
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return ret;
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}
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static inline int solaris_T(unsigned int fd, unsigned int cmd, u32 arg)
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{
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switch (cmd & 0xff) {
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case 1: /* TCGETA */
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return linux_to_solaris_termio(fd, TCGETA, arg);
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case 2: /* TCSETA */
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return solaris_to_linux_termio(fd, TCSETA, arg);
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case 3: /* TCSETAW */
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return solaris_to_linux_termio(fd, TCSETAW, arg);
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case 4: /* TCSETAF */
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return solaris_to_linux_termio(fd, TCSETAF, arg);
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case 5: /* TCSBRK */
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return sys_ioctl(fd, TCSBRK, arg);
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case 6: /* TCXONC */
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return sys_ioctl(fd, TCXONC, arg);
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case 7: /* TCFLSH */
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return sys_ioctl(fd, TCFLSH, arg);
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case 13: /* TCGETS */
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return linux_to_solaris_termios(fd, TCGETS, arg);
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case 14: /* TCSETS */
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return solaris_to_linux_termios(fd, TCSETS, arg);
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case 15: /* TCSETSW */
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return solaris_to_linux_termios(fd, TCSETSW, arg);
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case 16: /* TCSETSF */
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return solaris_to_linux_termios(fd, TCSETSF, arg);
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case 103: /* TIOCSWINSZ */
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return sys_ioctl(fd, TIOCSWINSZ, arg);
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case 104: /* TIOCGWINSZ */
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return sys_ioctl(fd, TIOCGWINSZ, arg);
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}
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return -ENOSYS;
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}
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static inline int solaris_t(unsigned int fd, unsigned int cmd, u32 arg)
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{
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switch (cmd & 0xff) {
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case 20: /* TIOCGPGRP */
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return sys_ioctl(fd, TIOCGPGRP, arg);
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case 21: /* TIOCSPGRP */
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return sys_ioctl(fd, TIOCSPGRP, arg);
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}
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return -ENOSYS;
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}
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/* }}} */
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/* A pseudo STREAMS support {{{ */
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struct strioctl {
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int cmd, timeout, len;
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u32 data;
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};
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struct solaris_si_sockparams {
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int sp_family;
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int sp_type;
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int sp_protocol;
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};
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struct solaris_o_si_udata {
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int tidusize;
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int addrsize;
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int optsize;
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int etsdusize;
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int servtype;
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int so_state;
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int so_options;
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int tsdusize;
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};
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struct solaris_si_udata {
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int tidusize;
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int addrsize;
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int optsize;
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int etsdusize;
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int servtype;
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int so_state;
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int so_options;
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int tsdusize;
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struct solaris_si_sockparams sockparams;
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};
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#define SOLARIS_MODULE_TIMOD 0
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#define SOLARIS_MODULE_SOCKMOD 1
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#define SOLARIS_MODULE_MAX 2
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static struct module_info {
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const char *name;
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/* can be expanded further if needed */
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} module_table[ SOLARIS_MODULE_MAX + 1 ] = {
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/* the ordering here must match the module numbers above! */
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{ "timod" },
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{ "sockmod" },
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{ NULL }
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};
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static inline int solaris_sockmod(unsigned int fd, unsigned int cmd, u32 arg)
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{
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struct inode *ino;
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struct fdtable *fdt;
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/* I wonder which of these tests are superfluous... --patrik */
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rcu_read_lock();
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fdt = files_fdtable(current->files);
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if (! fdt->fd[fd] ||
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! fdt->fd[fd]->f_dentry ||
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! (ino = fdt->fd[fd]->f_dentry->d_inode) ||
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! S_ISSOCK(ino->i_mode)) {
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rcu_read_unlock();
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return TBADF;
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}
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rcu_read_unlock();
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switch (cmd & 0xff) {
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case 109: /* SI_SOCKPARAMS */
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{
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struct solaris_si_sockparams si;
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if (copy_from_user (&si, A(arg), sizeof(si)))
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return (EFAULT << 8) | TSYSERR;
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/* Should we modify socket ino->socket_i.ops and type? */
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return 0;
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}
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case 110: /* SI_GETUDATA */
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{
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int etsdusize, servtype;
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struct solaris_si_udata __user *p = A(arg);
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switch (SOCKET_I(ino)->type) {
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case SOCK_STREAM:
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etsdusize = 1;
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servtype = 2;
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break;
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default:
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etsdusize = -2;
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servtype = 3;
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break;
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}
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if (put_user(16384, &p->tidusize) ||
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__put_user(sizeof(struct sockaddr), &p->addrsize) ||
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__put_user(-1, &p->optsize) ||
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__put_user(etsdusize, &p->etsdusize) ||
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__put_user(servtype, &p->servtype) ||
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__put_user(0, &p->so_state) ||
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__put_user(0, &p->so_options) ||
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__put_user(16384, &p->tsdusize) ||
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__put_user(SOCKET_I(ino)->ops->family, &p->sockparams.sp_family) ||
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__put_user(SOCKET_I(ino)->type, &p->sockparams.sp_type) ||
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__put_user(SOCKET_I(ino)->ops->family, &p->sockparams.sp_protocol))
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return (EFAULT << 8) | TSYSERR;
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return 0;
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}
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case 101: /* O_SI_GETUDATA */
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{
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int etsdusize, servtype;
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struct solaris_o_si_udata __user *p = A(arg);
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switch (SOCKET_I(ino)->type) {
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case SOCK_STREAM:
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etsdusize = 1;
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servtype = 2;
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break;
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default:
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etsdusize = -2;
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servtype = 3;
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break;
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}
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if (put_user(16384, &p->tidusize) ||
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__put_user(sizeof(struct sockaddr), &p->addrsize) ||
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__put_user(-1, &p->optsize) ||
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__put_user(etsdusize, &p->etsdusize) ||
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__put_user(servtype, &p->servtype) ||
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__put_user(0, &p->so_state) ||
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__put_user(0, &p->so_options) ||
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__put_user(16384, &p->tsdusize))
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return (EFAULT << 8) | TSYSERR;
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return 0;
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}
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case 102: /* SI_SHUTDOWN */
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case 103: /* SI_LISTEN */
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case 104: /* SI_SETMYNAME */
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case 105: /* SI_SETPEERNAME */
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case 106: /* SI_GETINTRANSIT */
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case 107: /* SI_TCL_LINK */
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case 108: /* SI_TCL_UNLINK */
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;
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}
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return TNOTSUPPORT;
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}
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static inline int solaris_timod(unsigned int fd, unsigned int cmd, u32 arg,
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int len, int __user *len_p)
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{
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int ret;
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switch (cmd & 0xff) {
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case 141: /* TI_OPTMGMT */
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{
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int i;
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u32 prim;
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SOLD("TI_OPMGMT entry");
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ret = timod_putmsg(fd, A(arg), len, NULL, -1, 0);
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SOLD("timod_putmsg() returned");
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if (ret)
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return (-ret << 8) | TSYSERR;
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i = MSG_HIPRI;
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SOLD("calling timod_getmsg()");
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ret = timod_getmsg(fd, A(arg), len, len_p, NULL, -1, NULL, &i);
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SOLD("timod_getmsg() returned");
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if (ret)
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return (-ret << 8) | TSYSERR;
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SOLD("ret ok");
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if (get_user(prim, (u32 __user *)A(arg)))
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return (EFAULT << 8) | TSYSERR;
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SOLD("got prim");
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if (prim == T_ERROR_ACK) {
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u32 tmp, tmp2;
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SOLD("prim is T_ERROR_ACK");
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if (get_user(tmp, (u32 __user *)A(arg)+3) ||
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get_user(tmp2, (u32 __user *)A(arg)+2))
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return (EFAULT << 8) | TSYSERR;
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return (tmp2 << 8) | tmp;
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}
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SOLD("TI_OPMGMT return 0");
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return 0;
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}
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case 142: /* TI_BIND */
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{
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int i;
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u32 prim;
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SOLD("TI_BIND entry");
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ret = timod_putmsg(fd, A(arg), len, NULL, -1, 0);
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SOLD("timod_putmsg() returned");
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if (ret)
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return (-ret << 8) | TSYSERR;
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len = 1024; /* Solaris allows arbitrary return size */
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i = MSG_HIPRI;
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SOLD("calling timod_getmsg()");
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ret = timod_getmsg(fd, A(arg), len, len_p, NULL, -1, NULL, &i);
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SOLD("timod_getmsg() returned");
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if (ret)
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return (-ret << 8) | TSYSERR;
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SOLD("ret ok");
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if (get_user(prim, (u32 __user *)A(arg)))
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return (EFAULT << 8) | TSYSERR;
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SOLD("got prim");
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if (prim == T_ERROR_ACK) {
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u32 tmp, tmp2;
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SOLD("prim is T_ERROR_ACK");
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if (get_user(tmp, (u32 __user *)A(arg)+3) ||
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get_user(tmp2, (u32 __user *)A(arg)+2))
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return (EFAULT << 8) | TSYSERR;
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return (tmp2 << 8) | tmp;
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}
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SOLD("no ERROR_ACK requested");
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if (prim != T_OK_ACK)
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return TBADSEQ;
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SOLD("OK_ACK requested");
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i = MSG_HIPRI;
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SOLD("calling timod_getmsg()");
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ret = timod_getmsg(fd, A(arg), len, len_p, NULL, -1, NULL, &i);
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SOLD("timod_getmsg() returned");
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if (ret)
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return (-ret << 8) | TSYSERR;
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SOLD("TI_BIND return ok");
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return 0;
|
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}
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case 140: /* TI_GETINFO */
|
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case 143: /* TI_UNBIND */
|
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case 144: /* TI_GETMYNAME */
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case 145: /* TI_GETPEERNAME */
|
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case 146: /* TI_SETMYNAME */
|
|
case 147: /* TI_SETPEERNAME */
|
|
;
|
|
}
|
|
return TNOTSUPPORT;
|
|
}
|
|
|
|
static inline int solaris_S(struct file *filp, unsigned int fd, unsigned int cmd, u32 arg)
|
|
{
|
|
char *p;
|
|
int ret;
|
|
mm_segment_t old_fs;
|
|
struct strioctl si;
|
|
struct inode *ino;
|
|
struct sol_socket_struct *sock;
|
|
struct module_info *mi;
|
|
|
|
ino = filp->f_dentry->d_inode;
|
|
if (!S_ISSOCK(ino->i_mode))
|
|
return -EBADF;
|
|
sock = filp->private_data;
|
|
if (! sock) {
|
|
printk("solaris_S: NULL private_data\n");
|
|
return -EBADF;
|
|
}
|
|
if (sock->magic != SOLARIS_SOCKET_MAGIC) {
|
|
printk("solaris_S: invalid magic\n");
|
|
return -EBADF;
|
|
}
|
|
|
|
|
|
switch (cmd & 0xff) {
|
|
case 1: /* I_NREAD */
|
|
return -ENOSYS;
|
|
case 2: /* I_PUSH */
|
|
{
|
|
p = getname (A(arg));
|
|
if (IS_ERR (p))
|
|
return PTR_ERR(p);
|
|
ret = -EINVAL;
|
|
for (mi = module_table; mi->name; mi++) {
|
|
if (strcmp(mi->name, p) == 0) {
|
|
sol_module m;
|
|
if (sock->modcount >= MAX_NR_STREAM_MODULES) {
|
|
ret = -ENXIO;
|
|
break;
|
|
}
|
|
m = (sol_module) (mi - module_table);
|
|
sock->module[sock->modcount++] = m;
|
|
ret = 0;
|
|
break;
|
|
}
|
|
}
|
|
putname (p);
|
|
return ret;
|
|
}
|
|
case 3: /* I_POP */
|
|
if (sock->modcount <= 0) return -EINVAL;
|
|
sock->modcount--;
|
|
return 0;
|
|
case 4: /* I_LOOK */
|
|
{
|
|
const char *p;
|
|
if (sock->modcount <= 0) return -EINVAL;
|
|
p = module_table[(unsigned)sock->module[sock->modcount]].name;
|
|
if (copy_to_user (A(arg), p, strlen(p)))
|
|
return -EFAULT;
|
|
return 0;
|
|
}
|
|
case 5: /* I_FLUSH */
|
|
return 0;
|
|
case 8: /* I_STR */
|
|
if (copy_from_user(&si, A(arg), sizeof(struct strioctl)))
|
|
return -EFAULT;
|
|
/* We ignore what module is actually at the top of stack. */
|
|
switch ((si.cmd >> 8) & 0xff) {
|
|
case 'I':
|
|
return solaris_sockmod(fd, si.cmd, si.data);
|
|
case 'T':
|
|
return solaris_timod(fd, si.cmd, si.data, si.len,
|
|
&((struct strioctl __user *)A(arg))->len);
|
|
default:
|
|
return solaris_ioctl(fd, si.cmd, si.data);
|
|
}
|
|
case 9: /* I_SETSIG */
|
|
return sys_ioctl(fd, FIOSETOWN, current->pid);
|
|
case 10: /* I_GETSIG */
|
|
old_fs = get_fs();
|
|
set_fs(KERNEL_DS);
|
|
sys_ioctl(fd, FIOGETOWN, (unsigned long)&ret);
|
|
set_fs(old_fs);
|
|
if (ret == current->pid) return 0x3ff;
|
|
else return -EINVAL;
|
|
case 11: /* I_FIND */
|
|
{
|
|
int i;
|
|
p = getname (A(arg));
|
|
if (IS_ERR (p))
|
|
return PTR_ERR(p);
|
|
ret = 0;
|
|
for (i = 0; i < sock->modcount; i++) {
|
|
unsigned m = sock->module[i];
|
|
if (strcmp(module_table[m].name, p) == 0) {
|
|
ret = 1;
|
|
break;
|
|
}
|
|
}
|
|
putname (p);
|
|
return ret;
|
|
}
|
|
case 19: /* I_SWROPT */
|
|
case 32: /* I_SETCLTIME */
|
|
return 0; /* Lie */
|
|
}
|
|
return -ENOSYS;
|
|
}
|
|
|
|
static inline int solaris_s(unsigned int fd, unsigned int cmd, u32 arg)
|
|
{
|
|
switch (cmd & 0xff) {
|
|
case 0: /* SIOCSHIWAT */
|
|
case 2: /* SIOCSLOWAT */
|
|
return 0; /* We don't support them */
|
|
case 1: /* SIOCGHIWAT */
|
|
case 3: /* SIOCGLOWAT */
|
|
if (put_user (0, (u32 __user *)A(arg)))
|
|
return -EFAULT;
|
|
return 0; /* Lie */
|
|
case 7: /* SIOCATMARK */
|
|
return sys_ioctl(fd, SIOCATMARK, arg);
|
|
case 8: /* SIOCSPGRP */
|
|
return sys_ioctl(fd, SIOCSPGRP, arg);
|
|
case 9: /* SIOCGPGRP */
|
|
return sys_ioctl(fd, SIOCGPGRP, arg);
|
|
}
|
|
return -ENOSYS;
|
|
}
|
|
|
|
static inline int solaris_r(unsigned int fd, unsigned int cmd, u32 arg)
|
|
{
|
|
switch (cmd & 0xff) {
|
|
case 10: /* SIOCADDRT */
|
|
return compat_sys_ioctl(fd, SIOCADDRT, arg);
|
|
case 11: /* SIOCDELRT */
|
|
return compat_sys_ioctl(fd, SIOCDELRT, arg);
|
|
}
|
|
return -ENOSYS;
|
|
}
|
|
|
|
static inline int solaris_i(unsigned int fd, unsigned int cmd, u32 arg)
|
|
{
|
|
switch (cmd & 0xff) {
|
|
case 12: /* SIOCSIFADDR */
|
|
return compat_sys_ioctl(fd, SIOCSIFADDR, arg);
|
|
case 13: /* SIOCGIFADDR */
|
|
return compat_sys_ioctl(fd, SIOCGIFADDR, arg);
|
|
case 14: /* SIOCSIFDSTADDR */
|
|
return compat_sys_ioctl(fd, SIOCSIFDSTADDR, arg);
|
|
case 15: /* SIOCGIFDSTADDR */
|
|
return compat_sys_ioctl(fd, SIOCGIFDSTADDR, arg);
|
|
case 16: /* SIOCSIFFLAGS */
|
|
return compat_sys_ioctl(fd, SIOCSIFFLAGS, arg);
|
|
case 17: /* SIOCGIFFLAGS */
|
|
return compat_sys_ioctl(fd, SIOCGIFFLAGS, arg);
|
|
case 18: /* SIOCSIFMEM */
|
|
return compat_sys_ioctl(fd, SIOCSIFMEM, arg);
|
|
case 19: /* SIOCGIFMEM */
|
|
return compat_sys_ioctl(fd, SIOCGIFMEM, arg);
|
|
case 20: /* SIOCGIFCONF */
|
|
return compat_sys_ioctl(fd, SIOCGIFCONF, arg);
|
|
case 21: /* SIOCSIFMTU */
|
|
return compat_sys_ioctl(fd, SIOCSIFMTU, arg);
|
|
case 22: /* SIOCGIFMTU */
|
|
return compat_sys_ioctl(fd, SIOCGIFMTU, arg);
|
|
case 23: /* SIOCGIFBRDADDR */
|
|
return compat_sys_ioctl(fd, SIOCGIFBRDADDR, arg);
|
|
case 24: /* SIOCSIFBRDADDR */
|
|
return compat_sys_ioctl(fd, SIOCSIFBRDADDR, arg);
|
|
case 25: /* SIOCGIFNETMASK */
|
|
return compat_sys_ioctl(fd, SIOCGIFNETMASK, arg);
|
|
case 26: /* SIOCSIFNETMASK */
|
|
return compat_sys_ioctl(fd, SIOCSIFNETMASK, arg);
|
|
case 27: /* SIOCGIFMETRIC */
|
|
return compat_sys_ioctl(fd, SIOCGIFMETRIC, arg);
|
|
case 28: /* SIOCSIFMETRIC */
|
|
return compat_sys_ioctl(fd, SIOCSIFMETRIC, arg);
|
|
case 30: /* SIOCSARP */
|
|
return compat_sys_ioctl(fd, SIOCSARP, arg);
|
|
case 31: /* SIOCGARP */
|
|
return compat_sys_ioctl(fd, SIOCGARP, arg);
|
|
case 32: /* SIOCDARP */
|
|
return compat_sys_ioctl(fd, SIOCDARP, arg);
|
|
case 52: /* SIOCGETNAME */
|
|
case 53: /* SIOCGETPEER */
|
|
{
|
|
struct sockaddr uaddr;
|
|
int uaddr_len = sizeof(struct sockaddr), ret;
|
|
long args[3];
|
|
mm_segment_t old_fs = get_fs();
|
|
int (*sys_socketcall)(int, unsigned long *) =
|
|
(int (*)(int, unsigned long *))SYS(socketcall);
|
|
|
|
args[0] = fd; args[1] = (long)&uaddr; args[2] = (long)&uaddr_len;
|
|
set_fs(KERNEL_DS);
|
|
ret = sys_socketcall(((cmd & 0xff) == 52) ? SYS_GETSOCKNAME : SYS_GETPEERNAME,
|
|
args);
|
|
set_fs(old_fs);
|
|
if (ret >= 0) {
|
|
if (copy_to_user(A(arg), &uaddr, uaddr_len))
|
|
return -EFAULT;
|
|
}
|
|
return ret;
|
|
}
|
|
#if 0
|
|
case 86: /* SIOCSOCKSYS */
|
|
return socksys_syscall(fd, arg);
|
|
#endif
|
|
case 87: /* SIOCGIFNUM */
|
|
{
|
|
struct net_device *d;
|
|
int i = 0;
|
|
|
|
read_lock_bh(&dev_base_lock);
|
|
for (d = dev_base; d; d = d->next) i++;
|
|
read_unlock_bh(&dev_base_lock);
|
|
|
|
if (put_user (i, (int __user *)A(arg)))
|
|
return -EFAULT;
|
|
return 0;
|
|
}
|
|
}
|
|
return -ENOSYS;
|
|
}
|
|
|
|
static int solaris_m(unsigned int fd, unsigned int cmd, u32 arg)
|
|
{
|
|
int ret;
|
|
|
|
switch (cmd & 0xff) {
|
|
case 1: /* MTIOCTOP */
|
|
ret = sys_ioctl(fd, MTIOCTOP, (unsigned long)&arg);
|
|
break;
|
|
case 2: /* MTIOCGET */
|
|
ret = sys_ioctl(fd, MTIOCGET, (unsigned long)&arg);
|
|
break;
|
|
case 3: /* MTIOCGETDRIVETYPE */
|
|
case 4: /* MTIOCPERSISTENT */
|
|
case 5: /* MTIOCPERSISTENTSTATUS */
|
|
case 6: /* MTIOCLRERR */
|
|
case 7: /* MTIOCGUARANTEEDORDER */
|
|
case 8: /* MTIOCRESERVE */
|
|
case 9: /* MTIOCRELEASE */
|
|
case 10: /* MTIOCFORCERESERVE */
|
|
case 13: /* MTIOCSTATE */
|
|
case 14: /* MTIOCREADIGNOREILI */
|
|
case 15: /* MTIOCREADIGNOREEOFS */
|
|
case 16: /* MTIOCSHORTFMK */
|
|
default:
|
|
ret = -ENOSYS; /* linux doesn't support these */
|
|
break;
|
|
};
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int solaris_O(unsigned int fd, unsigned int cmd, u32 arg)
|
|
{
|
|
int ret = -EINVAL;
|
|
|
|
switch (cmd & 0xff) {
|
|
case 1: /* OPROMGETOPT */
|
|
ret = sys_ioctl(fd, OPROMGETOPT, arg);
|
|
break;
|
|
case 2: /* OPROMSETOPT */
|
|
ret = sys_ioctl(fd, OPROMSETOPT, arg);
|
|
break;
|
|
case 3: /* OPROMNXTOPT */
|
|
ret = sys_ioctl(fd, OPROMNXTOPT, arg);
|
|
break;
|
|
case 4: /* OPROMSETOPT2 */
|
|
ret = sys_ioctl(fd, OPROMSETOPT2, arg);
|
|
break;
|
|
case 5: /* OPROMNEXT */
|
|
ret = sys_ioctl(fd, OPROMNEXT, arg);
|
|
break;
|
|
case 6: /* OPROMCHILD */
|
|
ret = sys_ioctl(fd, OPROMCHILD, arg);
|
|
break;
|
|
case 7: /* OPROMGETPROP */
|
|
ret = sys_ioctl(fd, OPROMGETPROP, arg);
|
|
break;
|
|
case 8: /* OPROMNXTPROP */
|
|
ret = sys_ioctl(fd, OPROMNXTPROP, arg);
|
|
break;
|
|
case 9: /* OPROMU2P */
|
|
ret = sys_ioctl(fd, OPROMU2P, arg);
|
|
break;
|
|
case 10: /* OPROMGETCONS */
|
|
ret = sys_ioctl(fd, OPROMGETCONS, arg);
|
|
break;
|
|
case 11: /* OPROMGETFBNAME */
|
|
ret = sys_ioctl(fd, OPROMGETFBNAME, arg);
|
|
break;
|
|
case 12: /* OPROMGETBOOTARGS */
|
|
ret = sys_ioctl(fd, OPROMGETBOOTARGS, arg);
|
|
break;
|
|
case 13: /* OPROMGETVERSION */
|
|
case 14: /* OPROMPATH2DRV */
|
|
case 15: /* OPROMDEV2PROMNAME */
|
|
case 16: /* OPROMPROM2DEVNAME */
|
|
case 17: /* OPROMGETPROPLEN */
|
|
default:
|
|
ret = -EINVAL;
|
|
break;
|
|
};
|
|
return ret;
|
|
}
|
|
|
|
/* }}} */
|
|
|
|
asmlinkage int solaris_ioctl(unsigned int fd, unsigned int cmd, u32 arg)
|
|
{
|
|
struct file *filp;
|
|
int error = -EBADF;
|
|
|
|
filp = fget(fd);
|
|
if (!filp)
|
|
goto out;
|
|
|
|
lock_kernel();
|
|
error = -EFAULT;
|
|
switch ((cmd >> 8) & 0xff) {
|
|
case 'S': error = solaris_S(filp, fd, cmd, arg); break;
|
|
case 'T': error = solaris_T(fd, cmd, arg); break;
|
|
case 'i': error = solaris_i(fd, cmd, arg); break;
|
|
case 'r': error = solaris_r(fd, cmd, arg); break;
|
|
case 's': error = solaris_s(fd, cmd, arg); break;
|
|
case 't': error = solaris_t(fd, cmd, arg); break;
|
|
case 'f': error = sys_ioctl(fd, cmd, arg); break;
|
|
case 'm': error = solaris_m(fd, cmd, arg); break;
|
|
case 'O': error = solaris_O(fd, cmd, arg); break;
|
|
default:
|
|
error = -ENOSYS;
|
|
break;
|
|
}
|
|
unlock_kernel();
|
|
fput(filp);
|
|
out:
|
|
if (error == -ENOSYS) {
|
|
unsigned char c = cmd>>8;
|
|
|
|
if (c < ' ' || c > 126) c = '.';
|
|
printk("solaris_ioctl: Unknown cmd fd(%d) cmd(%08x '%c') arg(%08x)\n",
|
|
(int)fd, (unsigned int)cmd, c, (unsigned int)arg);
|
|
error = -EINVAL;
|
|
}
|
|
return error;
|
|
}
|