patch-2.4.19 linux-2.4.19/arch/ppc64/kernel/sys_ppc32.c
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- Lines: 4807
- Date:
Fri Aug 2 17:39:43 2002
- Orig file:
linux-2.4.18/arch/ppc64/kernel/sys_ppc32.c
- Orig date:
Wed Dec 31 16:00:00 1969
diff -urN linux-2.4.18/arch/ppc64/kernel/sys_ppc32.c linux-2.4.19/arch/ppc64/kernel/sys_ppc32.c
@@ -0,0 +1,4806 @@
+/*
+ * sys_ppc32.c: Conversion between 32bit and 64bit native syscalls.
+ *
+ * Copyright (C) 2001 IBM
+ * Copyright (C) 1997,1998 Jakub Jelinek (jj@sunsite.mff.cuni.cz)
+ * Copyright (C) 1997 David S. Miller (davem@caip.rutgers.edu)
+ *
+ * These routines maintain argument size conversion between 32bit and 64bit
+ * environment.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ */
+
+#include <asm/ptrace.h>
+#include <linux/config.h>
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/fs.h>
+#include <linux/mm.h>
+#include <linux/file.h>
+#include <linux/signal.h>
+#include <linux/utime.h>
+#include <linux/resource.h>
+#include <linux/times.h>
+#include <linux/utsname.h>
+#include <linux/timex.h>
+#include <linux/smp.h>
+#include <linux/smp_lock.h>
+#include <linux/sem.h>
+#include <linux/msg.h>
+#include <linux/shm.h>
+#include <linux/slab.h>
+#include <linux/uio.h>
+#include <linux/nfs_fs.h>
+#include <linux/smb_fs.h>
+#include <linux/smb_mount.h>
+#include <linux/ncp_fs.h>
+#include <linux/quota.h>
+#include <linux/module.h>
+#include <linux/sunrpc/svc.h>
+#include <linux/nfsd/nfsd.h>
+#include <linux/nfsd/cache.h>
+#include <linux/nfsd/xdr.h>
+#include <linux/nfsd/syscall.h>
+#include <linux/poll.h>
+#include <linux/personality.h>
+#include <linux/stat.h>
+#include <linux/filter.h>
+#include <linux/highmem.h>
+#include <linux/highuid.h>
+#include <linux/mman.h>
+#include <linux/sysctl.h>
+
+#include <asm/types.h>
+#include <asm/ipc.h>
+#include <asm/uaccess.h>
+
+#include <asm/semaphore.h>
+
+#include <net/scm.h>
+#include <linux/elf.h>
+#include <asm/ppcdebug.h>
+#include <asm/time.h>
+#include <asm/ppc32.h>
+
+extern unsigned long wall_jiffies;
+#define USEC_PER_SEC (1000000)
+
+/*
+ * These are the flags in the MSR that the user is allowed to change
+ * by modifying the saved value of the MSR on the stack. SE and BE
+ * should not be in this list since gdb may want to change these. I.e,
+ * you should be able to step out of a signal handler to see what
+ * instruction executes next after the signal handler completes.
+ * Alternately, if you stepped into a signal handler, you should be
+ * able to continue 'til the next breakpoint from within the signal
+ * handler, even if the handler returns.
+ */
+#define MSR_USERCHANGE (MSR_FE0 | MSR_FE1)
+
+/* In order to reduce some races, while at the same time doing additional
+ * checking and hopefully speeding things up, we copy filenames to the
+ * kernel data space before using them..
+ *
+ * POSIX.1 2.4: an empty pathname is invalid (ENOENT).
+ */
+static inline int do_getname32(const char *filename, char *page)
+{
+ int retval;
+
+ /* 32bit pointer will be always far below TASK_SIZE :)) */
+ retval = strncpy_from_user((char *)page, (char *)filename, PAGE_SIZE);
+ if (retval > 0) {
+ if (retval < PAGE_SIZE)
+ return 0;
+ return -ENAMETOOLONG;
+ } else if (!retval)
+ retval = -ENOENT;
+ return retval;
+}
+
+char * getname32(const char *filename)
+{
+ char *tmp, *result;
+
+ result = ERR_PTR(-ENOMEM);
+ tmp = __getname();
+ if (tmp) {
+ int retval = do_getname32(filename, tmp);
+
+ result = tmp;
+ if (retval < 0) {
+ putname(tmp);
+ result = ERR_PTR(retval);
+ }
+ }
+ return result;
+}
+
+
+
+extern asmlinkage long sys_utime(char * filename, struct utimbuf * times);
+
+struct utimbuf32 {
+ __kernel_time_t32 actime, modtime;
+};
+
+asmlinkage long sys32_utime(char * filename, struct utimbuf32 *times)
+{
+ struct utimbuf t;
+ mm_segment_t old_fs;
+ int ret;
+ char *filenam;
+
+ PPCDBG(PPCDBG_SYS32NI, "sys32_utime - running - filename=%s, times=%p - pid=%ld, comm=%s \n", filename, times, current->pid, current->comm);
+
+ if (!times)
+ return sys_utime(filename, NULL);
+ if (get_user(t.actime, ×->actime) || __get_user(t.modtime, ×->modtime))
+ return -EFAULT;
+ filenam = getname32(filename);
+
+ ret = PTR_ERR(filenam);
+ if (!IS_ERR(filenam)) {
+ old_fs = get_fs();
+ set_fs (KERNEL_DS);
+ ret = sys_utime(filenam, &t);
+ set_fs (old_fs);
+ putname (filenam);
+ }
+
+ return ret;
+}
+
+
+
+struct iovec32 { u32 iov_base; __kernel_size_t32 iov_len; };
+
+typedef ssize_t (*IO_fn_t)(struct file *, char *, size_t, loff_t *);
+
+static long do_readv_writev32(int type, struct file *file,
+ const struct iovec32 *vector, u32 count)
+{
+ unsigned long tot_len;
+ struct iovec iovstack[UIO_FASTIOV];
+ struct iovec *iov=iovstack, *ivp;
+ struct inode *inode;
+ long retval, i;
+ IO_fn_t fn;
+
+ /* First get the "struct iovec" from user memory and
+ * verify all the pointers
+ */
+ if (!count)
+ return 0;
+ if(verify_area(VERIFY_READ, vector, sizeof(struct iovec32)*count))
+ return -EFAULT;
+ if (count > UIO_MAXIOV)
+ return -EINVAL;
+ if (count > UIO_FASTIOV) {
+ iov = kmalloc(count*sizeof(struct iovec), GFP_KERNEL);
+ if (!iov)
+ return -ENOMEM;
+ }
+
+ tot_len = 0;
+ i = count;
+ ivp = iov;
+ while(i > 0) {
+ u32 len;
+ u32 buf;
+
+ __get_user(len, &vector->iov_len);
+ __get_user(buf, &vector->iov_base);
+ tot_len += len;
+ ivp->iov_base = (void *)A(buf);
+ ivp->iov_len = (__kernel_size_t) len;
+ vector++;
+ ivp++;
+ i--;
+ }
+
+ inode = file->f_dentry->d_inode;
+ /* VERIFY_WRITE actually means a read, as we write to user space */
+ retval = locks_verify_area((type == VERIFY_WRITE
+ ? FLOCK_VERIFY_READ : FLOCK_VERIFY_WRITE),
+ inode, file, file->f_pos, tot_len);
+ if (retval) {
+ if (iov != iovstack)
+ kfree(iov);
+ return retval;
+ }
+
+ /* Then do the actual IO. Note that sockets need to be handled
+ * specially as they have atomicity guarantees and can handle
+ * iovec's natively
+ */
+ if (inode->i_sock) {
+ int err;
+ err = sock_readv_writev(type, inode, file, iov, count, tot_len);
+ if (iov != iovstack)
+ kfree(iov);
+ return err;
+ }
+
+ if (!file->f_op) {
+ if (iov != iovstack)
+ kfree(iov);
+ return -EINVAL;
+ }
+ /* VERIFY_WRITE actually means a read, as we write to user space */
+ fn = file->f_op->read;
+ if (type == VERIFY_READ)
+ fn = (IO_fn_t) file->f_op->write;
+ ivp = iov;
+ while (count > 0) {
+ void * base;
+ int len, nr;
+
+ base = ivp->iov_base;
+ len = ivp->iov_len;
+ ivp++;
+ count--;
+ nr = fn(file, base, len, &file->f_pos);
+ if (nr < 0) {
+ if (retval)
+ break;
+ retval = nr;
+ break;
+ }
+ retval += nr;
+ if (nr != len)
+ break;
+ }
+ if (iov != iovstack)
+ kfree(iov);
+ return retval;
+}
+
+asmlinkage long sys32_readv(u32 fd, struct iovec32 *vector, u32 count)
+{
+ struct file *file;
+ long ret = -EBADF;
+
+ PPCDBG(PPCDBG_SYS32, "sys32_readv - entered - pid=%ld current=%lx comm=%s \n", current->pid, current, current->comm);
+
+ file = fget(fd);
+ if(!file)
+ goto bad_file;
+
+ if (file->f_op && (file->f_mode & FMODE_READ) &&
+ (file->f_op->readv || file->f_op->read))
+ ret = do_readv_writev32(VERIFY_WRITE, file, vector, count);
+ fput(file);
+
+bad_file:
+ PPCDBG(PPCDBG_SYS32, "sys32_readv - exited - pid=%ld current=%lx comm=%s \n", current->pid, current, current->comm);
+ return ret;
+}
+
+asmlinkage long sys32_writev(u32 fd, struct iovec32 *vector, u32 count)
+{
+ struct file *file;
+ int ret = -EBADF;
+
+ PPCDBG(PPCDBG_SYS32, "sys32_writev - entered - pid=%ld current=%lx comm=%s \n", current->pid, current, current->comm);
+
+ file = fget(fd);
+ if(!file)
+ goto bad_file;
+ if (file->f_op && (file->f_mode & FMODE_WRITE) &&
+ (file->f_op->writev || file->f_op->write))
+ ret = do_readv_writev32(VERIFY_READ, file, vector, count);
+ fput(file);
+
+bad_file:
+ PPCDBG(PPCDBG_SYS32, "sys32_writev - exited - pid=%ld current=%lx comm=%s \n", current->pid, current, current->comm);
+ return ret;
+}
+
+
+
+static inline int get_flock(struct flock *kfl, struct flock32 *ufl)
+{
+ int err;
+
+ err = get_user(kfl->l_type, &ufl->l_type);
+ err |= __get_user(kfl->l_whence, &ufl->l_whence);
+ err |= __get_user(kfl->l_start, &ufl->l_start);
+ err |= __get_user(kfl->l_len, &ufl->l_len);
+ err |= __get_user(kfl->l_pid, &ufl->l_pid);
+ return err;
+}
+
+static inline int put_flock(struct flock *kfl, struct flock32 *ufl)
+{
+ int err;
+
+ err = __put_user(kfl->l_type, &ufl->l_type);
+ err |= __put_user(kfl->l_whence, &ufl->l_whence);
+ err |= __put_user(kfl->l_start, &ufl->l_start);
+ err |= __put_user(kfl->l_len, &ufl->l_len);
+ err |= __put_user(kfl->l_pid, &ufl->l_pid);
+ return err;
+}
+
+extern asmlinkage long sys_fcntl(unsigned int fd, unsigned int cmd, unsigned long arg);
+asmlinkage long sys32_fcntl(unsigned int fd, unsigned int cmd, unsigned long arg)
+{
+ switch (cmd) {
+ case F_GETLK:
+ case F_SETLK:
+ case F_SETLKW:
+ {
+ struct flock f;
+ mm_segment_t old_fs;
+ long ret;
+
+ if(get_flock(&f, (struct flock32 *)arg))
+ return -EFAULT;
+ old_fs = get_fs(); set_fs (KERNEL_DS);
+ ret = sys_fcntl(fd, cmd, (unsigned long)&f);
+ set_fs (old_fs);
+ if(put_flock(&f, (struct flock32 *)arg))
+ return -EFAULT;
+ return ret;
+ }
+ default:
+ return sys_fcntl(fd, cmd, (unsigned long)arg);
+ }
+}
+
+struct ncp_mount_data32 {
+ int version;
+ unsigned int ncp_fd;
+ __kernel_uid_t32 mounted_uid;
+ __kernel_pid_t32 wdog_pid;
+ unsigned char mounted_vol[NCP_VOLNAME_LEN + 1];
+ unsigned int time_out;
+ unsigned int retry_count;
+ unsigned int flags;
+ __kernel_uid_t32 uid;
+ __kernel_gid_t32 gid;
+ __kernel_mode_t32 file_mode;
+ __kernel_mode_t32 dir_mode;
+};
+
+static void *do_ncp_super_data_conv(void *raw_data)
+{
+ struct ncp_mount_data *n = (struct ncp_mount_data *)raw_data;
+ struct ncp_mount_data32 *n32 = (struct ncp_mount_data32 *)raw_data;
+
+ n->dir_mode = n32->dir_mode;
+ n->file_mode = n32->file_mode;
+ n->gid = n32->gid;
+ n->uid = n32->uid;
+ memmove (n->mounted_vol, n32->mounted_vol, (sizeof (n32->mounted_vol) + 3 * sizeof (unsigned int)));
+ n->wdog_pid = n32->wdog_pid;
+ n->mounted_uid = n32->mounted_uid;
+ return raw_data;
+}
+
+struct smb_mount_data32 {
+ int version;
+ __kernel_uid_t32 mounted_uid;
+ __kernel_uid_t32 uid;
+ __kernel_gid_t32 gid;
+ __kernel_mode_t32 file_mode;
+ __kernel_mode_t32 dir_mode;
+};
+
+static void *do_smb_super_data_conv(void *raw_data)
+{
+ struct smb_mount_data *s = (struct smb_mount_data *)raw_data;
+ struct smb_mount_data32 *s32 = (struct smb_mount_data32 *)raw_data;
+
+ s->version = s32->version;
+ s->mounted_uid = s32->mounted_uid;
+ s->uid = s32->uid;
+ s->gid = s32->gid;
+ s->file_mode = s32->file_mode;
+ s->dir_mode = s32->dir_mode;
+ return raw_data;
+}
+
+static int copy_mount_stuff_to_kernel(const void *user, unsigned long *kernel)
+{
+ int i;
+ unsigned long page;
+ struct vm_area_struct *vma;
+
+ *kernel = 0;
+ if(!user)
+ return 0;
+ vma = find_vma(current->mm, (unsigned long)user);
+ if(!vma || (unsigned long)user < vma->vm_start)
+ return -EFAULT;
+ if(!(vma->vm_flags & VM_READ))
+ return -EFAULT;
+ i = vma->vm_end - (unsigned long) user;
+ if(PAGE_SIZE <= (unsigned long) i)
+ i = PAGE_SIZE - 1;
+ if(!(page = __get_free_page(GFP_KERNEL)))
+ return -ENOMEM;
+ if(copy_from_user((void *) page, user, i)) {
+ free_page(page);
+ return -EFAULT;
+ }
+ *kernel = page;
+ return 0;
+}
+
+#define SMBFS_NAME "smbfs"
+#define NCPFS_NAME "ncpfs"
+
+asmlinkage long sys32_mount(char *dev_name, char *dir_name, char *type, unsigned long new_flags, u32 data)
+{
+ unsigned long type_page = 0;
+ unsigned long data_page = 0;
+ unsigned long dev_page = 0;
+ unsigned long dir_page = 0;
+ int err, is_smb, is_ncp;
+
+ PPCDBG(PPCDBG_SYS32, "sys32_mount - entered - pid=%ld current=%lx comm=%s \n", current->pid, current, current->comm);
+
+ is_smb = is_ncp = 0;
+
+ err = copy_mount_stuff_to_kernel((const void *)type, &type_page);
+ if (err)
+ goto out;
+
+ if (!type_page) {
+ err = -EINVAL;
+ goto out;
+ }
+
+ is_smb = !strcmp((char *)type_page, SMBFS_NAME);
+ is_ncp = !strcmp((char *)type_page, NCPFS_NAME);
+
+ err = copy_mount_stuff_to_kernel((const void *)AA(data), &data_page);
+ if (err)
+ goto type_out;
+
+ err = copy_mount_stuff_to_kernel(dev_name, &dev_page);
+ if (err)
+ goto data_out;
+
+ err = copy_mount_stuff_to_kernel(dir_name, &dir_page);
+ if (err)
+ goto dev_out;
+
+ if (!is_smb && !is_ncp) {
+ lock_kernel();
+ err = do_mount((char*)dev_page, (char*)dir_page,
+ (char*)type_page, new_flags, (char*)data_page);
+ unlock_kernel();
+ } else {
+ if (is_ncp)
+ do_ncp_super_data_conv((void *)data_page);
+ else
+ do_smb_super_data_conv((void *)data_page);
+
+ lock_kernel();
+ err = do_mount((char*)dev_page, (char*)dir_page,
+ (char*)type_page, new_flags, (char*)data_page);
+ unlock_kernel();
+ }
+ free_page(dir_page);
+
+dev_out:
+ free_page(dev_page);
+
+data_out:
+ free_page(data_page);
+
+type_out:
+ free_page(type_page);
+
+out:
+
+ PPCDBG(PPCDBG_SYS32, "sys32_mount - exited - pid=%ld current=%lx comm=%s \n", current->pid, current, current->comm);
+
+ return err;
+}
+
+struct dqblk32 {
+ __u32 dqb_bhardlimit;
+ __u32 dqb_bsoftlimit;
+ __u32 dqb_curblocks;
+ __u32 dqb_ihardlimit;
+ __u32 dqb_isoftlimit;
+ __u32 dqb_curinodes;
+ __kernel_time_t32 dqb_btime;
+ __kernel_time_t32 dqb_itime;
+};
+
+
+extern asmlinkage long sys_quotactl(int cmd, const char *special, int id, caddr_t addr);
+
+/* Note: it is necessary to treat cmd and id as unsigned ints,
+ * with the corresponding cast to a signed int to insure that the
+ * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
+ * and the register representation of a signed int (msr in 64-bit mode) is performed.
+ */
+asmlinkage long sys32_quotactl(u32 cmd_parm, const char *special, u32 id_parm, unsigned long addr)
+{
+ int cmd = (int)cmd_parm;
+ int id = (int)id_parm;
+ int cmds = cmd >> SUBCMDSHIFT;
+ int err;
+ struct dqblk d;
+ mm_segment_t old_fs;
+ char *spec;
+
+ PPCDBG(PPCDBG_SYS32, "sys32_quotactl - entered - pid=%ld current=%lx comm=%s \n",
+ current->pid, current, current->comm);
+
+ switch (cmds) {
+ case Q_GETQUOTA:
+ break;
+ case Q_SETQUOTA:
+ case Q_SETUSE:
+ case Q_SETQLIM:
+ if (copy_from_user (&d, (struct dqblk32 *)addr,
+ sizeof (struct dqblk32)))
+ return -EFAULT;
+ d.dqb_itime = ((struct dqblk32 *)&d)->dqb_itime;
+ d.dqb_btime = ((struct dqblk32 *)&d)->dqb_btime;
+ break;
+ default:
+ return sys_quotactl(cmd, special,
+ id, (caddr_t)addr);
+ }
+ spec = getname32 (special);
+ err = PTR_ERR(spec);
+ if (IS_ERR(spec)) return err;
+ old_fs = get_fs ();
+ set_fs (KERNEL_DS);
+ err = sys_quotactl(cmd, (const char *)spec, id, (caddr_t)&d);
+ set_fs (old_fs);
+ putname (spec);
+ if (cmds == Q_GETQUOTA) {
+ __kernel_time_t b = d.dqb_btime, i = d.dqb_itime;
+ ((struct dqblk32 *)&d)->dqb_itime = i;
+ ((struct dqblk32 *)&d)->dqb_btime = b;
+ if (copy_to_user ((struct dqblk32 *)addr, &d,
+ sizeof (struct dqblk32)))
+ return -EFAULT;
+ }
+
+ PPCDBG(PPCDBG_SYS32, "sys32_quotactl - exited - pid=%ld current=%lx comm=%s \n",
+ current->pid, current, current->comm);
+
+ return err;
+}
+
+
+
+/* readdir & getdents */
+#define NAME_OFFSET(de) ((int) ((de)->d_name - (char *) (de)))
+#define ROUND_UP(x) (((x)+sizeof(u32)-1) & ~(sizeof(u32)-1))
+
+struct old_linux_dirent32 {
+ u32 d_ino;
+ u32 d_offset;
+ unsigned short d_namlen;
+ /* unsigned char d_type; */
+ char d_name[1];
+};
+
+struct readdir_callback32 {
+ struct old_linux_dirent32 * dirent;
+ int count;
+};
+
+static int fillonedir(void * __buf, const char * name, int namlen,
+ off_t offset, ino_t ino, unsigned int d_type)
+{
+ struct readdir_callback32 * buf = (struct readdir_callback32 *) __buf;
+ struct old_linux_dirent32 * dirent;
+
+ if (buf->count)
+ return -EINVAL;
+ buf->count++;
+ dirent = buf->dirent;
+ put_user(ino, &dirent->d_ino);
+ put_user(offset, &dirent->d_offset);
+ put_user(namlen, &dirent->d_namlen);
+ copy_to_user(dirent->d_name, name, namlen);
+ put_user(0, dirent->d_name + namlen);
+ return 0;
+}
+
+asmlinkage int old32_readdir(unsigned int fd, struct old_linux_dirent32 *dirent, unsigned int count)
+{
+ int error = -EBADF;
+ struct file * file;
+ struct readdir_callback32 buf;
+
+ file = fget(fd);
+ if (!file)
+ goto out;
+
+ buf.count = 0;
+ buf.dirent = dirent;
+
+ error = vfs_readdir(file, (filldir_t)fillonedir, &buf);
+ if (error < 0)
+ goto out_putf;
+ error = buf.count;
+
+out_putf:
+ fput(file);
+out:
+ return error;
+}
+
+#if 0
+struct linux_dirent32 {
+ u32 d_ino;
+ u32 d_off;
+ unsigned short d_reclen;
+ char d_name[1];
+};
+#else
+struct linux_dirent32 {
+ u32 d_ino;
+ u32 d_off;
+ unsigned short d_reclen;
+ /* unsigned char d_type; */
+ char d_name[256];
+};
+#endif
+
+struct getdents_callback32 {
+ struct linux_dirent32 * current_dir;
+ struct linux_dirent32 * previous;
+ int count;
+ int error;
+};
+
+static int
+filldir(void * __buf, const char * name, int namlen, off_t offset, ino_t ino,
+ unsigned int d_type)
+{
+ struct linux_dirent32 * dirent;
+ struct getdents_callback32 * buf = (struct getdents_callback32 *) __buf;
+ int reclen = ROUND_UP(NAME_OFFSET(dirent) + namlen + 1);
+
+ buf->error = -EINVAL; /* only used if we fail.. */
+ if (reclen > buf->count)
+ return -EINVAL;
+ dirent = buf->previous;
+ if (dirent)
+ put_user(offset, &dirent->d_off);
+ dirent = buf->current_dir;
+ buf->previous = dirent;
+ put_user(ino, &dirent->d_ino);
+ put_user(reclen, &dirent->d_reclen);
+ /* put_user(d_type, &dirent->d_type); */
+ copy_to_user(dirent->d_name, name, namlen);
+ put_user(0, dirent->d_name + namlen);
+ ((char *) dirent) += reclen;
+ buf->current_dir = dirent;
+ buf->count -= reclen;
+ return 0;
+}
+
+asmlinkage long sys32_getdents(unsigned int fd, struct linux_dirent32 *dirent, unsigned int count)
+{
+ struct file * file;
+ struct linux_dirent32 * lastdirent;
+ struct getdents_callback32 buf;
+ int error = -EBADF;
+
+ PPCDBG(PPCDBG_SYS32NI, "sys32_getdents - running - fd=%x, pid=%ld, comm=%s \n", fd, current->pid, current->comm);
+
+ file = fget(fd);
+ if (!file)
+ goto out;
+
+ buf.current_dir = dirent;
+ buf.previous = NULL;
+ buf.count = count;
+ buf.error = 0;
+
+ error = vfs_readdir(file, (filldir_t)filldir, &buf);
+ if (error < 0)
+ goto out_putf;
+ lastdirent = buf.previous;
+ error = buf.error;
+ if(lastdirent) {
+ put_user(file->f_pos, &lastdirent->d_off);
+ error = count - buf.count;
+ }
+ out_putf:
+ fput(file);
+
+ out:
+ return error;
+}
+/* end of readdir & getdents */
+
+
+
+/* 32-bit timeval and related flotsam. */
+
+struct timeval32
+{
+ int tv_sec, tv_usec;
+};
+
+struct itimerval32
+{
+ struct timeval32 it_interval;
+ struct timeval32 it_value;
+};
+
+
+
+
+/*
+ * Ooo, nasty. We need here to frob 32-bit unsigned longs to
+ * 64-bit unsigned longs.
+ */
+static inline int
+get_fd_set32(unsigned long n, unsigned long *fdset, u32 *ufdset)
+{
+ if (ufdset) {
+ unsigned long odd;
+
+ if (verify_area(VERIFY_WRITE, ufdset, n*sizeof(u32)))
+ return -EFAULT;
+
+ odd = n & 1UL;
+ n &= ~1UL;
+ while (n) {
+ unsigned long h, l;
+ __get_user(l, ufdset);
+ __get_user(h, ufdset+1);
+ ufdset += 2;
+ *fdset++ = h << 32 | l;
+ n -= 2;
+ }
+ if (odd)
+ __get_user(*fdset, ufdset);
+ } else {
+ /* Tricky, must clear full unsigned long in the
+ * kernel fdset at the end, this makes sure that
+ * actually happens.
+ */
+ memset(fdset, 0, ((n + 1) & ~1)*sizeof(u32));
+ }
+ return 0;
+}
+
+static inline void
+set_fd_set32(unsigned long n, u32 *ufdset, unsigned long *fdset)
+{
+ unsigned long odd;
+
+ if (!ufdset)
+ return;
+
+ odd = n & 1UL;
+ n &= ~1UL;
+ while (n) {
+ unsigned long h, l;
+ l = *fdset++;
+ h = l >> 32;
+ __put_user(l, ufdset);
+ __put_user(h, ufdset+1);
+ ufdset += 2;
+ n -= 2;
+ }
+ if (odd)
+ __put_user(*fdset, ufdset);
+}
+
+
+
+#define MAX_SELECT_SECONDS ((unsigned long) (MAX_SCHEDULE_TIMEOUT / HZ)-1)
+
+asmlinkage long sys32_select(int n, u32 *inp, u32 *outp, u32 *exp, u32 tvp_x)
+{
+ fd_set_bits fds;
+ struct timeval32 *tvp = (struct timeval32 *)AA(tvp_x);
+ char *bits;
+ unsigned long nn;
+ long timeout;
+ int ret, size;
+
+ PPCDBG(PPCDBG_SYS32X, "sys32_select - entered - n=%x, inp=%p, outp=%p - pid=%ld comm=%s \n", n, inp, outp, current->pid, current->comm);
+
+ timeout = MAX_SCHEDULE_TIMEOUT;
+ if (tvp) {
+ time_t sec, usec;
+ if ((ret = verify_area(VERIFY_READ, tvp, sizeof(*tvp)))
+ || (ret = __get_user(sec, &tvp->tv_sec))
+ || (ret = __get_user(usec, &tvp->tv_usec)))
+ goto out_nofds;
+
+ ret = -EINVAL;
+ if(sec < 0 || usec < 0)
+ goto out_nofds;
+
+ if ((unsigned long) sec < MAX_SELECT_SECONDS) {
+ timeout = (usec + 1000000/HZ - 1) / (1000000/HZ);
+ timeout += sec * (unsigned long) HZ;
+ }
+ }
+
+ ret = -EINVAL;
+ if (n < 0)
+ goto out_nofds;
+ if (n > current->files->max_fdset)
+ n = current->files->max_fdset;
+
+ /*
+ * We need 6 bitmaps (in/out/ex for both incoming and outgoing),
+ * since we used fdset we need to allocate memory in units of
+ * long-words.
+ */
+ ret = -ENOMEM;
+ size = FDS_BYTES(n);
+ bits = kmalloc(6 * size, GFP_KERNEL);
+ if (!bits)
+ goto out_nofds;
+ fds.in = (unsigned long *) bits;
+ fds.out = (unsigned long *) (bits + size);
+ fds.ex = (unsigned long *) (bits + 2*size);
+ fds.res_in = (unsigned long *) (bits + 3*size);
+ fds.res_out = (unsigned long *) (bits + 4*size);
+ fds.res_ex = (unsigned long *) (bits + 5*size);
+
+ nn = (n + 8*sizeof(u32) - 1) / (8*sizeof(u32));
+ if ((ret = get_fd_set32(nn, fds.in, inp)) ||
+ (ret = get_fd_set32(nn, fds.out, outp)) ||
+ (ret = get_fd_set32(nn, fds.ex, exp)))
+ goto out;
+ zero_fd_set(n, fds.res_in);
+ zero_fd_set(n, fds.res_out);
+ zero_fd_set(n, fds.res_ex);
+
+ ret = do_select(n, &fds, &timeout);
+
+ if (tvp && !(current->personality & STICKY_TIMEOUTS)) {
+ time_t sec = 0, usec = 0;
+ if (timeout) {
+ sec = timeout / HZ;
+ usec = timeout % HZ;
+ usec *= (1000000/HZ);
+ }
+ put_user(sec, &tvp->tv_sec);
+ put_user(usec, &tvp->tv_usec);
+ }
+
+ if (ret < 0)
+ goto out;
+ if (!ret) {
+ ret = -ERESTARTNOHAND;
+ if (signal_pending(current))
+ goto out;
+ ret = 0;
+ }
+
+ set_fd_set32(nn, inp, fds.res_in);
+ set_fd_set32(nn, outp, fds.res_out);
+ set_fd_set32(nn, exp, fds.res_ex);
+
+out:
+ kfree(bits);
+
+out_nofds:
+ PPCDBG(PPCDBG_SYS32X, "sys32_select - exited - pid=%ld, comm=%s \n", current->pid, current->comm);
+ return ret;
+}
+
+
+
+
+/*
+ * Due to some executables calling the wrong select we sometimes
+ * get wrong args. This determines how the args are being passed
+ * (a single ptr to them all args passed) then calls
+ * sys_select() with the appropriate args. -- Cort
+ */
+/* Note: it is necessary to treat n as an unsigned int,
+ * with the corresponding cast to a signed int to insure that the
+ * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
+ * and the register representation of a signed int (msr in 64-bit mode) is performed.
+ */
+asmlinkage int ppc32_select(u32 n, u32* inp, u32* outp, u32* exp, u32 tvp_x)
+{
+ if ((unsigned int)n >= 4096)
+ panic("ppc32_select - wrong arguments were passed in \n");
+
+ return sys32_select((int)n, inp, outp, exp, tvp_x);
+}
+
+
+
+static int cp_new_stat32(struct inode *inode, struct stat32 *statbuf)
+{
+ unsigned long ino, blksize, blocks;
+ kdev_t dev, rdev;
+ umode_t mode;
+ nlink_t nlink;
+ uid_t uid;
+ gid_t gid;
+ off_t size;
+ time_t atime, mtime, ctime;
+ int err;
+
+ /* Stream the loads of inode data into the load buffer,
+ * then we push it all into the store buffer below. This
+ * should give optimal cache performance.
+ */
+ ino = inode->i_ino;
+ dev = inode->i_dev;
+ mode = inode->i_mode;
+ nlink = inode->i_nlink;
+ uid = inode->i_uid;
+ gid = inode->i_gid;
+ rdev = inode->i_rdev;
+ size = inode->i_size;
+ atime = inode->i_atime;
+ mtime = inode->i_mtime;
+ ctime = inode->i_ctime;
+ blksize = inode->i_blksize;
+ blocks = inode->i_blocks;
+
+ err = put_user(kdev_t_to_nr(dev), &statbuf->st_dev);
+ err |= put_user(ino, &statbuf->st_ino);
+ err |= put_user(mode, &statbuf->st_mode);
+ err |= put_user(nlink, &statbuf->st_nlink);
+ err |= put_user(uid, &statbuf->st_uid);
+ err |= put_user(gid, &statbuf->st_gid);
+ err |= put_user(kdev_t_to_nr(rdev), &statbuf->st_rdev);
+ err |= put_user(size, &statbuf->st_size);
+ err |= put_user(atime, &statbuf->st_atime);
+ err |= put_user(0, &statbuf->__unused1);
+ err |= put_user(mtime, &statbuf->st_mtime);
+ err |= put_user(0, &statbuf->__unused2);
+ err |= put_user(ctime, &statbuf->st_ctime);
+ err |= put_user(0, &statbuf->__unused3);
+ if (blksize) {
+ err |= put_user(blksize, &statbuf->st_blksize);
+ err |= put_user(blocks, &statbuf->st_blocks);
+ } else {
+ unsigned int tmp_blocks;
+
+#define D_B 7
+#define I_B (BLOCK_SIZE / sizeof(unsigned short))
+ tmp_blocks = (size + BLOCK_SIZE - 1) / BLOCK_SIZE;
+ if (tmp_blocks > D_B) {
+ unsigned int indirect;
+
+ indirect = (tmp_blocks - D_B + I_B - 1) / I_B;
+ tmp_blocks += indirect;
+ if (indirect > 1) {
+ indirect = (indirect - 1 + I_B - 1) / I_B;
+ tmp_blocks += indirect;
+ if (indirect > 1)
+ tmp_blocks++;
+ }
+ }
+ err |= put_user(BLOCK_SIZE, &statbuf->st_blksize);
+ err |= put_user((BLOCK_SIZE / 512) * tmp_blocks, &statbuf->st_blocks);
+#undef D_B
+#undef I_B
+ }
+ err |= put_user(0, &statbuf->__unused4[0]);
+ err |= put_user(0, &statbuf->__unused4[1]);
+
+ return err;
+}
+
+static __inline__ int
+do_revalidate(struct dentry *dentry)
+{
+ struct inode * inode = dentry->d_inode;
+ if (inode->i_op && inode->i_op->revalidate)
+ return inode->i_op->revalidate(dentry);
+ return 0;
+}
+
+asmlinkage long sys32_newstat(char* filename, struct stat32* statbuf)
+{
+ struct nameidata nd;
+ int error;
+
+ PPCDBG(PPCDBG_SYS32X, "sys32_newstat - running - filename=%s, statbuf=%p, pid=%ld, comm=%s\n", filename, statbuf, current->pid, current->comm);
+
+ error = user_path_walk(filename, &nd);
+ if (!error) {
+ error = do_revalidate(nd.dentry);
+ if (!error)
+ error = cp_new_stat32(nd.dentry->d_inode, statbuf);
+ path_release(&nd);
+ }
+ return error;
+}
+
+asmlinkage long sys32_newlstat(char * filename, struct stat32 *statbuf)
+{
+ struct nameidata nd;
+ int error;
+
+ PPCDBG(PPCDBG_SYS32X, "sys32_newlstat - running - fn=%s, pid=%ld, comm=%s\n", filename, current->pid, current->comm);
+
+ error = user_path_walk_link(filename, &nd);
+ if (!error) {
+ error = do_revalidate(nd.dentry);
+ if (!error)
+ error = cp_new_stat32(nd.dentry->d_inode, statbuf);
+
+ path_release(&nd);
+ }
+ return error;
+}
+
+asmlinkage long sys32_newfstat(unsigned int fd, struct stat32 *statbuf)
+{
+ struct file *f;
+ int err = -EBADF;
+
+ PPCDBG(PPCDBG_SYS32X, "sys32_newfstat - running - fd=%x, pid=%ld, comm=%s\n", fd, current->pid, current->comm);
+
+ f = fget(fd);
+ if (f) {
+ struct dentry * dentry = f->f_dentry;
+
+ err = do_revalidate(dentry);
+ if (!err)
+ err = cp_new_stat32(dentry->d_inode, statbuf);
+ fput(f);
+ }
+ return err;
+}
+
+static inline int put_statfs (struct statfs32 *ubuf, struct statfs *kbuf)
+{
+ int err;
+
+ err = put_user (kbuf->f_type, &ubuf->f_type);
+ err |= __put_user (kbuf->f_bsize, &ubuf->f_bsize);
+ err |= __put_user (kbuf->f_blocks, &ubuf->f_blocks);
+ err |= __put_user (kbuf->f_bfree, &ubuf->f_bfree);
+ err |= __put_user (kbuf->f_bavail, &ubuf->f_bavail);
+ err |= __put_user (kbuf->f_files, &ubuf->f_files);
+ err |= __put_user (kbuf->f_ffree, &ubuf->f_ffree);
+ err |= __put_user (kbuf->f_namelen, &ubuf->f_namelen);
+ err |= __put_user (kbuf->f_fsid.val[0], &ubuf->f_fsid.val[0]);
+ err |= __put_user (kbuf->f_fsid.val[1], &ubuf->f_fsid.val[1]);
+ return err;
+}
+
+extern asmlinkage int sys_statfs(const char * path, struct statfs * buf);
+
+asmlinkage long sys32_statfs(const char * path, struct statfs32 *buf)
+{
+ int ret;
+ struct statfs s;
+ mm_segment_t old_fs = get_fs();
+ char *pth;
+
+ PPCDBG(PPCDBG_SYS32X, "sys32_statfs - entered - pid=%ld current=%lx comm=%s\n", current->pid, current, current->comm);
+
+ pth = getname32 (path);
+ ret = PTR_ERR(pth);
+ if (!IS_ERR(pth)) {
+ set_fs (KERNEL_DS);
+ ret = sys_statfs((const char *)pth, &s);
+ set_fs (old_fs);
+ putname (pth);
+ if (put_statfs(buf, &s))
+ return -EFAULT;
+ }
+
+ PPCDBG(PPCDBG_SYS32X, "sys32_statfs - exited - pid=%ld current=%lx comm=%s \n", current->pid, current, current->comm);
+
+ return ret;
+}
+
+extern asmlinkage long sys_fstatfs(unsigned int fd, struct statfs * buf);
+
+asmlinkage long sys32_fstatfs(unsigned int fd, struct statfs32 *buf)
+{
+ int ret;
+ struct statfs s;
+ mm_segment_t old_fs = get_fs();
+
+ PPCDBG(PPCDBG_SYS32X, "sys32_fstatfs - entered - pid=%ld current=%lx comm=%s\n", current->pid, current, current->comm);
+
+ set_fs (KERNEL_DS);
+ ret = sys_fstatfs(fd, &s);
+ set_fs (old_fs);
+ if (put_statfs(buf, &s))
+ return -EFAULT;
+
+ PPCDBG(PPCDBG_SYS32X, "sys32_fstatfs - exited - pid=%ld current=%lx comm=%s\n", current->pid, current, current->comm);
+
+ return ret;
+}
+
+
+
+extern asmlinkage long sys_sysfs(int option, unsigned long arg1, unsigned long arg2);
+
+/* Note: it is necessary to treat option as an unsigned int,
+ * with the corresponding cast to a signed int to insure that the
+ * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
+ * and the register representation of a signed int (msr in 64-bit mode) is performed.
+ */
+asmlinkage long sys32_sysfs(u32 option, u32 arg1, u32 arg2)
+{
+ PPCDBG(PPCDBG_SYS32, "sys32_sysfs - running - pid=%ld, comm=%s\n", current->pid, current->comm);
+ return sys_sysfs((int)option, arg1, arg2);
+}
+
+
+
+
+extern unsigned long do_mremap(unsigned long addr,
+ unsigned long old_len, unsigned long new_len,
+ unsigned long flags, unsigned long new_addr);
+
+asmlinkage unsigned long sys32_mremap(unsigned long addr, unsigned long old_len, unsigned long new_len,
+ unsigned long flags, u32 __new_addr)
+{
+ unsigned long ret = -EINVAL;
+ unsigned long new_addr = AA(__new_addr);
+
+ PPCDBG(PPCDBG_SYS32, "sys32_mremap - entered - pid=%ld current=%lx comm=%s\n",
+ current->pid, current, current->comm);
+
+
+ if (old_len > 0xf0000000UL || new_len > 0xf0000000UL)
+ goto out;
+ if (addr > 0xf0000000UL - old_len)
+ goto out;
+ down_write(¤t->mm->mmap_sem);
+ if (flags & MREMAP_FIXED) {
+ if (new_addr > 0xf0000000UL - new_len)
+ goto out_sem;
+ } else if (addr > 0xf0000000UL - new_len) {
+ ret = -ENOMEM;
+ if (!(flags & MREMAP_MAYMOVE))
+ goto out_sem;
+ new_addr = get_unmapped_area (NULL, addr, new_len, 0, 0);
+ if (!new_addr)
+ goto out_sem;
+ flags |= MREMAP_FIXED;
+ }
+ ret = do_mremap(addr, old_len, new_len, flags, new_addr);
+out_sem:
+ up_write(¤t->mm->mmap_sem);
+out:
+
+ PPCDBG(PPCDBG_SYS32, "sys32_mremap - exited - pid=%ld current=%lx comm=%s\n",
+ current->pid, current, current->comm);
+
+ return ret;
+}
+
+
+
+/* Handle adjtimex compatability. */
+struct timex32 {
+ u32 modes;
+ s32 offset, freq, maxerror, esterror;
+ s32 status, constant, precision, tolerance;
+ struct timeval32 time;
+ s32 tick;
+ s32 ppsfreq, jitter, shift, stabil;
+ s32 jitcnt, calcnt, errcnt, stbcnt;
+ s32 :32; s32 :32; s32 :32; s32 :32;
+ s32 :32; s32 :32; s32 :32; s32 :32;
+ s32 :32; s32 :32; s32 :32; s32 :32;
+};
+
+extern int do_adjtimex(struct timex *);
+extern void ppc_adjtimex(void);
+
+asmlinkage long sys32_adjtimex(struct timex32 *utp)
+{
+ struct timex txc;
+ int ret;
+
+ PPCDBG(PPCDBG_SYS32, "sys32_adjtimex - running - pid=%ld current=%lx comm=%s \n", current->pid, current, current->comm);
+
+ memset(&txc, 0, sizeof(struct timex));
+
+ if(get_user(txc.modes, &utp->modes) ||
+ __get_user(txc.offset, &utp->offset) ||
+ __get_user(txc.freq, &utp->freq) ||
+ __get_user(txc.maxerror, &utp->maxerror) ||
+ __get_user(txc.esterror, &utp->esterror) ||
+ __get_user(txc.status, &utp->status) ||
+ __get_user(txc.constant, &utp->constant) ||
+ __get_user(txc.precision, &utp->precision) ||
+ __get_user(txc.tolerance, &utp->tolerance) ||
+ __get_user(txc.time.tv_sec, &utp->time.tv_sec) ||
+ __get_user(txc.time.tv_usec, &utp->time.tv_usec) ||
+ __get_user(txc.tick, &utp->tick) ||
+ __get_user(txc.ppsfreq, &utp->ppsfreq) ||
+ __get_user(txc.jitter, &utp->jitter) ||
+ __get_user(txc.shift, &utp->shift) ||
+ __get_user(txc.stabil, &utp->stabil) ||
+ __get_user(txc.jitcnt, &utp->jitcnt) ||
+ __get_user(txc.calcnt, &utp->calcnt) ||
+ __get_user(txc.errcnt, &utp->errcnt) ||
+ __get_user(txc.stbcnt, &utp->stbcnt))
+ return -EFAULT;
+
+ ret = do_adjtimex(&txc);
+
+ /* adjust the conversion of TB to time of day to track adjtimex */
+ ppc_adjtimex();
+
+ if(put_user(txc.modes, &utp->modes) ||
+ __put_user(txc.offset, &utp->offset) ||
+ __put_user(txc.freq, &utp->freq) ||
+ __put_user(txc.maxerror, &utp->maxerror) ||
+ __put_user(txc.esterror, &utp->esterror) ||
+ __put_user(txc.status, &utp->status) ||
+ __put_user(txc.constant, &utp->constant) ||
+ __put_user(txc.precision, &utp->precision) ||
+ __put_user(txc.tolerance, &utp->tolerance) ||
+ __put_user(txc.time.tv_sec, &utp->time.tv_sec) ||
+ __put_user(txc.time.tv_usec, &utp->time.tv_usec) ||
+ __put_user(txc.tick, &utp->tick) ||
+ __put_user(txc.ppsfreq, &utp->ppsfreq) ||
+ __put_user(txc.jitter, &utp->jitter) ||
+ __put_user(txc.shift, &utp->shift) ||
+ __put_user(txc.stabil, &utp->stabil) ||
+ __put_user(txc.jitcnt, &utp->jitcnt) ||
+ __put_user(txc.calcnt, &utp->calcnt) ||
+ __put_user(txc.errcnt, &utp->errcnt) ||
+ __put_user(txc.stbcnt, &utp->stbcnt))
+ ret = -EFAULT;
+
+ return ret;
+}
+
+
+
+#ifdef CONFIG_MODULES
+
+extern asmlinkage unsigned long sys_create_module(const char *name_user, size_t size);
+
+asmlinkage unsigned long sys32_create_module(const char *name_user, __kernel_size_t32 size)
+{
+
+ PPCDBG(PPCDBG_SYS32M, "sys32_create_module - running - pid=%ld current=%lx comm=%s\n", current->pid, current, current->comm);
+
+ return sys_create_module(name_user, (size_t)size);
+}
+
+
+
+extern asmlinkage long sys_init_module(const char *name_user, struct module *mod_user);
+
+asmlinkage long sys32_init_module(const char *name_user, struct module *mod_user)
+{
+
+ PPCDBG(PPCDBG_SYS32, "sys32_init_module - running - pid=%ld current=%lx comm=%s\n", current->pid, current, current->comm);
+
+ return sys_init_module(name_user, mod_user);
+}
+
+
+
+extern asmlinkage long sys_delete_module(const char *name_user);
+
+asmlinkage long sys32_delete_module(const char *name_user)
+{
+
+ PPCDBG(PPCDBG_SYS32, "sys32_delete_module - running - pid=%ld current=%lx comm=%s\n", current->pid, current, current->comm);
+
+ return sys_delete_module(name_user);
+}
+
+
+
+struct module_info32 {
+ u32 addr;
+ u32 size;
+ u32 flags;
+ s32 usecount;
+};
+
+/* Query various bits about modules. */
+
+static inline long
+get_mod_name(const char *user_name, char **buf)
+{
+ unsigned long page;
+ long retval;
+
+ if ((unsigned long)user_name >= TASK_SIZE
+ && !segment_eq(get_fs (), KERNEL_DS))
+ return -EFAULT;
+
+ page = __get_free_page(GFP_KERNEL);
+ if (!page)
+ return -ENOMEM;
+
+ retval = strncpy_from_user((char *)page, user_name, PAGE_SIZE);
+ if (retval > 0) {
+ if (retval < PAGE_SIZE) {
+ *buf = (char *)page;
+ return retval;
+ }
+ retval = -ENAMETOOLONG;
+ } else if (!retval)
+ retval = -EINVAL;
+
+ free_page(page);
+ return retval;
+}
+
+static inline void
+put_mod_name(char *buf)
+{
+ free_page((unsigned long)buf);
+}
+
+static __inline__ struct module *find_module(const char *name)
+{
+ struct module *mod;
+
+ for (mod = module_list; mod ; mod = mod->next) {
+ if (mod->flags & MOD_DELETED)
+ continue;
+ if (!strcmp(mod->name, name))
+ break;
+ }
+
+ return mod;
+}
+
+static int
+qm_modules(char *buf, size_t bufsize, __kernel_size_t32 *ret)
+{
+ struct module *mod;
+ size_t nmod, space, len;
+
+ nmod = space = 0;
+
+ for (mod = module_list; mod->next != NULL; mod = mod->next, ++nmod) {
+ len = strlen(mod->name)+1;
+ if (len > bufsize)
+ goto calc_space_needed;
+ if (copy_to_user(buf, mod->name, len))
+ return -EFAULT;
+ buf += len;
+ bufsize -= len;
+ space += len;
+ }
+
+ if (put_user(nmod, ret))
+ return -EFAULT;
+ else
+ return 0;
+
+calc_space_needed:
+ space += len;
+ while ((mod = mod->next)->next != NULL)
+ space += strlen(mod->name)+1;
+
+ if (put_user(space, ret))
+ return -EFAULT;
+ else
+ return -ENOSPC;
+}
+
+static int
+qm_deps(struct module *mod, char *buf, size_t bufsize, __kernel_size_t32 *ret)
+{
+ size_t i, space, len;
+
+ if (mod->next == NULL)
+ return -EINVAL;
+ if (!MOD_CAN_QUERY(mod))
+ return put_user(0, ret);
+
+ space = 0;
+ for (i = 0; i < mod->ndeps; ++i) {
+ const char *dep_name = mod->deps[i].dep->name;
+
+ len = strlen(dep_name)+1;
+ if (len > bufsize)
+ goto calc_space_needed;
+ if (copy_to_user(buf, dep_name, len))
+ return -EFAULT;
+ buf += len;
+ bufsize -= len;
+ space += len;
+ }
+
+ return put_user(i, ret);
+
+calc_space_needed:
+ space += len;
+ while (++i < mod->ndeps)
+ space += strlen(mod->deps[i].dep->name)+1;
+
+ if (put_user(space, ret))
+ return -EFAULT;
+ else
+ return -ENOSPC;
+}
+
+static int
+qm_refs(struct module *mod, char *buf, size_t bufsize, __kernel_size_t32 *ret)
+{
+ size_t nrefs, space, len;
+ struct module_ref *ref;
+
+ if (mod->next == NULL)
+ return -EINVAL;
+ if (!MOD_CAN_QUERY(mod))
+ if (put_user(0, ret))
+ return -EFAULT;
+ else
+ return 0;
+
+ space = 0;
+ for (nrefs = 0, ref = mod->refs; ref ; ++nrefs, ref = ref->next_ref) {
+ const char *ref_name = ref->ref->name;
+
+ len = strlen(ref_name)+1;
+ if (len > bufsize)
+ goto calc_space_needed;
+ if (copy_to_user(buf, ref_name, len))
+ return -EFAULT;
+ buf += len;
+ bufsize -= len;
+ space += len;
+ }
+
+ if (put_user(nrefs, ret))
+ return -EFAULT;
+ else
+ return 0;
+
+calc_space_needed:
+ space += len;
+ while ((ref = ref->next_ref) != NULL)
+ space += strlen(ref->ref->name)+1;
+
+ if (put_user(space, ret))
+ return -EFAULT;
+ else
+ return -ENOSPC;
+}
+
+static inline int
+qm_symbols(struct module *mod, char *buf, size_t bufsize, __kernel_size_t32 *ret)
+{
+ size_t i, space, len;
+ struct module_symbol *s;
+ char *strings;
+ unsigned *vals;
+
+ if (!MOD_CAN_QUERY(mod))
+ if (put_user(0, ret))
+ return -EFAULT;
+ else
+ return 0;
+
+ space = mod->nsyms * 2*sizeof(u32);
+
+ i = len = 0;
+ s = mod->syms;
+
+ if (space > bufsize)
+ goto calc_space_needed;
+
+ if (!access_ok(VERIFY_WRITE, buf, space))
+ return -EFAULT;
+
+ bufsize -= space;
+ vals = (unsigned *)buf;
+ strings = buf+space;
+
+ for (; i < mod->nsyms ; ++i, ++s, vals += 2) {
+ len = strlen(s->name)+1;
+ if (len > bufsize)
+ goto calc_space_needed;
+
+ if (copy_to_user(strings, s->name, len)
+ || __put_user(s->value, vals+0)
+ || __put_user(space, vals+1))
+ return -EFAULT;
+
+ strings += len;
+ bufsize -= len;
+ space += len;
+ }
+
+ if (put_user(i, ret))
+ return -EFAULT;
+ else
+ return 0;
+
+calc_space_needed:
+ for (; i < mod->nsyms; ++i, ++s)
+ space += strlen(s->name)+1;
+
+ if (put_user(space, ret))
+ return -EFAULT;
+ else
+ return -ENOSPC;
+}
+
+static inline int
+qm_info(struct module *mod, char *buf, size_t bufsize, __kernel_size_t32 *ret)
+{
+ int error = 0;
+
+ if (mod->next == NULL)
+ return -EINVAL;
+
+ if (sizeof(struct module_info32) <= bufsize) {
+ struct module_info32 info;
+ info.addr = (unsigned long)mod;
+ info.size = mod->size;
+ info.flags = mod->flags;
+ info.usecount =
+ ((mod_member_present(mod, can_unload)
+ && mod->can_unload)
+ ? -1 : atomic_read(&mod->uc.usecount));
+
+ if (copy_to_user(buf, &info, sizeof(struct module_info32)))
+ return -EFAULT;
+ } else
+ error = -ENOSPC;
+
+ if (put_user(sizeof(struct module_info32), ret))
+ return -EFAULT;
+
+ return error;
+}
+
+/* Note: it is necessary to treat which as an unsigned int,
+ * with the corresponding cast to a signed int to insure that the
+ * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
+ * and the register representation of a signed int (msr in 64-bit mode) is performed.
+ */
+asmlinkage long sys32_query_module(char *name_user, u32 which, char *buf, __kernel_size_t32 bufsize, u32 ret)
+{
+ struct module *mod;
+ int err;
+
+ PPCDBG(PPCDBG_SYS32M, "sys32_query_module - entered - pid=%ld current=%lx comm=%s\n",
+ current->pid, current, current->comm);
+
+ lock_kernel();
+ if (name_user == 0) {
+ /* This finds "kernel_module" which is not exported. */
+ for(mod = module_list; mod->next != NULL; mod = mod->next)
+ ;
+ } else {
+ long namelen;
+ char *name;
+
+ if ((namelen = get_mod_name(name_user, &name)) < 0) {
+ err = namelen;
+ goto out;
+ }
+ err = -ENOENT;
+ if (namelen == 0) {
+ /* This finds "kernel_module" which is not exported. */
+ for(mod = module_list; mod->next != NULL; mod = mod->next)
+ ;
+ } else if ((mod = find_module(name)) == NULL) {
+ put_mod_name(name);
+ goto out;
+ }
+ put_mod_name(name);
+ }
+
+ switch ((int)which)
+ {
+ case 0:
+ err = 0;
+ break;
+ case QM_MODULES:
+ err = qm_modules(buf, bufsize, (__kernel_size_t32 *)AA(ret));
+ break;
+ case QM_DEPS:
+ err = qm_deps(mod, buf, bufsize, (__kernel_size_t32 *)AA(ret));
+ break;
+ case QM_REFS:
+ err = qm_refs(mod, buf, bufsize, (__kernel_size_t32 *)AA(ret));
+ break;
+ case QM_SYMBOLS:
+ err = qm_symbols(mod, buf, bufsize, (__kernel_size_t32 *)AA(ret));
+ break;
+ case QM_INFO:
+ err = qm_info(mod, buf, bufsize, (__kernel_size_t32 *)AA(ret));
+ break;
+ default:
+ err = -EINVAL;
+ break;
+ }
+out:
+ unlock_kernel();
+
+ PPCDBG(PPCDBG_SYS32, "sys32_query_module - exited - pid=%ld current=%lx comm=%s\n", current->pid, current, current->comm);
+
+ return err;
+}
+
+
+
+struct kernel_sym32 {
+ u32 value;
+ char name[60];
+};
+
+extern asmlinkage long sys_get_kernel_syms(struct kernel_sym *table);
+
+asmlinkage long sys32_get_kernel_syms(struct kernel_sym32 *table)
+{
+ int len, i;
+ struct kernel_sym *tbl;
+ mm_segment_t old_fs;
+
+ PPCDBG(PPCDBG_SYS32, "sys32_get_kernel_syms - entered - pid=%ld current=%lx comm=%s \n", current->pid, current, current->comm);
+
+
+ len = sys_get_kernel_syms(NULL);
+ if (!table) return len;
+ tbl = kmalloc (len * sizeof (struct kernel_sym), GFP_KERNEL);
+ if (!tbl) return -ENOMEM;
+ old_fs = get_fs();
+ set_fs (KERNEL_DS);
+ sys_get_kernel_syms(tbl);
+ set_fs (old_fs);
+ for (i = 0; i < len; i++, table += sizeof (struct kernel_sym32)) {
+ if (put_user (tbl[i].value, &table->value) ||
+ copy_to_user (table->name, tbl[i].name, 60))
+ break;
+ }
+ kfree (tbl);
+
+ PPCDBG(PPCDBG_SYS32, "sys32_get_kernel_syms - exited - pid=%ld current=%lx comm=%s \n", current->pid, current, current->comm);
+
+ return i;
+}
+
+#else /* CONFIG_MODULES */
+
+asmlinkage unsigned long sys32_create_module(const char *name_user, size_t size)
+{
+
+ PPCDBG(PPCDBG_SYS32, "sys32_create_module - running - pid=%ld, comm=%s\n", current->pid, current->comm);
+
+ return -ENOSYS;
+}
+
+asmlinkage long sys32_init_module(const char *name_user, struct module *mod_user)
+{
+ PPCDBG(PPCDBG_SYS32, "sys32_init_module - running - pid=%ld, comm=%s\n", current->pid, current->comm);
+
+ return -ENOSYS;
+}
+
+asmlinkage long sys32_delete_module(const char *name_user)
+{
+ PPCDBG(PPCDBG_SYS32, "sys32_delete_module - running - pid=%ld, comm=%s\n", current->pid, current->comm);
+
+ return -ENOSYS;
+}
+
+/* Note: it is necessary to treat which as an unsigned int,
+ * with the corresponding cast to a signed int to insure that the
+ * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
+ * and the register representation of a signed int (msr in 64-bit mode) is performed.
+ */
+asmlinkage long sys32_query_module(const char *name_user, u32 which, char *buf, size_t bufsize, size_t *ret)
+{
+ PPCDBG(PPCDBG_SYS32, "sys32_query_module - entered - pid=%ld current=%lx comm=%s\n", current->pid, current, current->comm);
+
+ /* Let the program know about the new interface. Not that it'll do them much good. */
+ if ((int)which == 0)
+ return 0;
+
+ PPCDBG(PPCDBG_SYS32, "sys32_query_module - exited - pid=%ld current=%lx comm=%s\n", current->pid, current, current->comm);
+ return -ENOSYS;
+}
+
+asmlinkage long sys32_get_kernel_syms(struct kernel_sym *table)
+{
+ PPCDBG(PPCDBG_SYS32, "sys32_get_kernel_syms - running - pid=%ld, comm=%s\n", current->pid, current->comm);
+
+ return -ENOSYS;
+}
+
+#endif /* CONFIG_MODULES */
+
+
+
+/* Stuff for NFS server syscalls... */
+struct nfsctl_svc32 {
+ u16 svc32_port;
+ s32 svc32_nthreads;
+};
+
+struct nfsctl_client32 {
+ s8 cl32_ident[NFSCLNT_IDMAX+1];
+ s32 cl32_naddr;
+ struct in_addr cl32_addrlist[NFSCLNT_ADDRMAX];
+ s32 cl32_fhkeytype;
+ s32 cl32_fhkeylen;
+ u8 cl32_fhkey[NFSCLNT_KEYMAX];
+};
+
+struct nfsctl_export32 {
+ s8 ex32_client[NFSCLNT_IDMAX+1];
+ s8 ex32_path[NFS_MAXPATHLEN+1];
+ __kernel_dev_t32 ex32_dev;
+ __kernel_ino_t32 ex32_ino;
+ s32 ex32_flags;
+ __kernel_uid_t32 ex32_anon_uid;
+ __kernel_gid_t32 ex32_anon_gid;
+};
+
+struct nfsctl_uidmap32 {
+ u32 ug32_ident; /* char * */
+ __kernel_uid_t32 ug32_uidbase;
+ s32 ug32_uidlen;
+ u32 ug32_udimap; /* uid_t * */
+ __kernel_uid_t32 ug32_gidbase;
+ s32 ug32_gidlen;
+ u32 ug32_gdimap; /* gid_t * */
+};
+
+struct nfsctl_fhparm32 {
+ struct sockaddr gf32_addr;
+ __kernel_dev_t32 gf32_dev;
+ __kernel_ino_t32 gf32_ino;
+ s32 gf32_version;
+};
+
+struct nfsctl_fdparm32 {
+ struct sockaddr gd32_addr;
+ s8 gd32_path[NFS_MAXPATHLEN+1];
+ s32 gd32_version;
+};
+
+struct nfsctl_fsparm32 {
+ struct sockaddr gd32_addr;
+ s8 gd32_path[NFS_MAXPATHLEN+1];
+ s32 gd32_maxlen;
+};
+
+struct nfsctl_arg32 {
+ s32 ca32_version; /* safeguard */
+ union {
+ struct nfsctl_svc32 u32_svc;
+ struct nfsctl_client32 u32_client;
+ struct nfsctl_export32 u32_export;
+ struct nfsctl_uidmap32 u32_umap;
+ struct nfsctl_fhparm32 u32_getfh;
+ struct nfsctl_fdparm32 u32_getfd;
+ struct nfsctl_fsparm32 u32_getfs;
+ } u;
+#define ca32_svc u.u32_svc
+#define ca32_client u.u32_client
+#define ca32_export u.u32_export
+#define ca32_umap u.u32_umap
+#define ca32_getfh u.u32_getfh
+#define ca32_getfd u.u32_getfd
+#define ca32_getfs u.u32_getfs
+#define ca32_authd u.u32_authd
+};
+
+union nfsctl_res32 {
+ __u8 cr32_getfh[NFS_FHSIZE];
+ struct knfsd_fh cr32_getfs;
+};
+
+static int nfs_svc32_trans(struct nfsctl_arg *karg, struct nfsctl_arg32 *arg32)
+{
+ int err;
+
+ err = __get_user(karg->ca_version, &arg32->ca32_version);
+ err |= __get_user(karg->ca_svc.svc_port, &arg32->ca32_svc.svc32_port);
+ err |= __get_user(karg->ca_svc.svc_nthreads, &arg32->ca32_svc.svc32_nthreads);
+ return err;
+}
+
+static int nfs_clnt32_trans(struct nfsctl_arg *karg, struct nfsctl_arg32 *arg32)
+{
+ int err;
+
+ err = __get_user(karg->ca_version, &arg32->ca32_version);
+ err |= copy_from_user(&karg->ca_client.cl_ident[0],
+ &arg32->ca32_client.cl32_ident[0],
+ NFSCLNT_IDMAX);
+ err |= __get_user(karg->ca_client.cl_naddr, &arg32->ca32_client.cl32_naddr);
+ err |= copy_from_user(&karg->ca_client.cl_addrlist[0],
+ &arg32->ca32_client.cl32_addrlist[0],
+ (sizeof(struct in_addr) * NFSCLNT_ADDRMAX));
+ err |= __get_user(karg->ca_client.cl_fhkeytype,
+ &arg32->ca32_client.cl32_fhkeytype);
+ err |= __get_user(karg->ca_client.cl_fhkeylen,
+ &arg32->ca32_client.cl32_fhkeylen);
+ err |= copy_from_user(&karg->ca_client.cl_fhkey[0],
+ &arg32->ca32_client.cl32_fhkey[0],
+ NFSCLNT_KEYMAX);
+
+ if(err) return -EFAULT;
+ return 0;
+}
+
+static int nfs_exp32_trans(struct nfsctl_arg *karg, struct nfsctl_arg32 *arg32)
+{
+ int err;
+
+ err = __get_user(karg->ca_version, &arg32->ca32_version);
+ err |= copy_from_user(&karg->ca_export.ex_client[0],
+ &arg32->ca32_export.ex32_client[0],
+ NFSCLNT_IDMAX);
+ err |= copy_from_user(&karg->ca_export.ex_path[0],
+ &arg32->ca32_export.ex32_path[0],
+ NFS_MAXPATHLEN);
+ err |= __get_user(karg->ca_export.ex_dev,
+ &arg32->ca32_export.ex32_dev);
+ err |= __get_user(karg->ca_export.ex_ino,
+ &arg32->ca32_export.ex32_ino);
+ err |= __get_user(karg->ca_export.ex_flags,
+ &arg32->ca32_export.ex32_flags);
+ err |= __get_user(karg->ca_export.ex_anon_uid,
+ &arg32->ca32_export.ex32_anon_uid);
+ err |= __get_user(karg->ca_export.ex_anon_gid,
+ &arg32->ca32_export.ex32_anon_gid);
+ karg->ca_export.ex_anon_uid = karg->ca_export.ex_anon_uid;
+ karg->ca_export.ex_anon_gid = karg->ca_export.ex_anon_gid;
+
+ if(err) return -EFAULT;
+ return 0;
+}
+
+static int nfs_uud32_trans(struct nfsctl_arg *karg, struct nfsctl_arg32 *arg32)
+{
+ u32 uaddr;
+ int i;
+ int err;
+
+ memset(karg, 0, sizeof(*karg));
+ if(__get_user(karg->ca_version, &arg32->ca32_version))
+ return -EFAULT;
+ karg->ca_umap.ug_ident = (char *)get_free_page(GFP_USER);
+ if(!karg->ca_umap.ug_ident)
+ return -ENOMEM;
+ err = __get_user(uaddr, &arg32->ca32_umap.ug32_ident);
+ if(strncpy_from_user(karg->ca_umap.ug_ident,
+ (char *)A(uaddr), PAGE_SIZE) <= 0)
+ return -EFAULT;
+ err |= __get_user(karg->ca_umap.ug_uidbase,
+ &arg32->ca32_umap.ug32_uidbase);
+ err |= __get_user(karg->ca_umap.ug_uidlen,
+ &arg32->ca32_umap.ug32_uidlen);
+ err |= __get_user(uaddr, &arg32->ca32_umap.ug32_udimap);
+ if (err)
+ return -EFAULT;
+ karg->ca_umap.ug_udimap = kmalloc((sizeof(uid_t) * karg->ca_umap.ug_uidlen),
+ GFP_USER);
+ if(!karg->ca_umap.ug_udimap)
+ return -ENOMEM;
+ for(i = 0; i < karg->ca_umap.ug_uidlen; i++)
+ err |= __get_user(karg->ca_umap.ug_udimap[i],
+ &(((__kernel_uid_t32 *)A(uaddr))[i]));
+ err |= __get_user(karg->ca_umap.ug_gidbase,
+ &arg32->ca32_umap.ug32_gidbase);
+ err |= __get_user(karg->ca_umap.ug_uidlen,
+ &arg32->ca32_umap.ug32_gidlen);
+ err |= __get_user(uaddr, &arg32->ca32_umap.ug32_gdimap);
+ if (err)
+ return -EFAULT;
+ karg->ca_umap.ug_gdimap = kmalloc((sizeof(gid_t) * karg->ca_umap.ug_uidlen),
+ GFP_USER);
+ if(!karg->ca_umap.ug_gdimap)
+ return -ENOMEM;
+ for(i = 0; i < karg->ca_umap.ug_gidlen; i++)
+ err |= __get_user(karg->ca_umap.ug_gdimap[i],
+ &(((__kernel_gid_t32 *)A(uaddr))[i]));
+
+ return err;
+}
+
+static int nfs_getfh32_trans(struct nfsctl_arg *karg, struct nfsctl_arg32 *arg32)
+{
+ int err;
+
+ err = __get_user(karg->ca_version, &arg32->ca32_version);
+ err |= copy_from_user(&karg->ca_getfh.gf_addr,
+ &arg32->ca32_getfh.gf32_addr,
+ (sizeof(struct sockaddr)));
+ err |= __get_user(karg->ca_getfh.gf_dev,
+ &arg32->ca32_getfh.gf32_dev);
+ err |= __get_user(karg->ca_getfh.gf_ino,
+ &arg32->ca32_getfh.gf32_ino);
+ err |= __get_user(karg->ca_getfh.gf_version,
+ &arg32->ca32_getfh.gf32_version);
+
+ if(err) return -EFAULT;
+ return 0;
+}
+
+static int nfs_getfd32_trans(struct nfsctl_arg *karg, struct nfsctl_arg32 *arg32)
+{
+ int err;
+
+ err = __get_user(karg->ca_version, &arg32->ca32_version);
+ err |= copy_from_user(&karg->ca_getfd.gd_addr,
+ &arg32->ca32_getfd.gd32_addr,
+ (sizeof(struct sockaddr)));
+ err |= copy_from_user(&karg->ca_getfd.gd_path,
+ &arg32->ca32_getfd.gd32_path,
+ (NFS_MAXPATHLEN+1));
+ err |= __get_user(karg->ca_getfd.gd_version,
+ &arg32->ca32_getfd.gd32_version);
+
+ if(err) return -EFAULT;
+ return 0;
+}
+
+static int nfs_getfs32_trans(struct nfsctl_arg *karg, struct nfsctl_arg32 *arg32)
+{
+ int err;
+
+ err = __get_user(karg->ca_version, &arg32->ca32_version);
+ err |= copy_from_user(&karg->ca_getfs.gd_addr,
+ &arg32->ca32_getfs.gd32_addr,
+ (sizeof(struct sockaddr)));
+ err |= copy_from_user(&karg->ca_getfs.gd_path,
+ &arg32->ca32_getfs.gd32_path,
+ (NFS_MAXPATHLEN+1));
+ err |= __get_user(karg->ca_getfs.gd_maxlen,
+ &arg32->ca32_getfs.gd32_maxlen);
+
+ if(err) return -EFAULT;
+ return 0;
+}
+
+/* This really doesn't need translations, we are only passing
+ * back a union which contains opaque nfs file handle data.
+ */
+static int nfs_getfh32_res_trans(union nfsctl_res *kres, union nfsctl_res32 *res32)
+{
+ int err;
+
+ err = copy_to_user(res32, kres, sizeof(*res32));
+
+ if(err) return -EFAULT;
+ return 0;
+}
+
+/* Note: it is necessary to treat cmd_parm as an unsigned int,
+ * with the corresponding cast to a signed int to insure that the
+ * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
+ * and the register representation of a signed int (msr in 64-bit mode) is performed.
+ */
+int asmlinkage sys32_nfsservctl(u32 cmd_parm, struct nfsctl_arg32 *arg32, union nfsctl_res32 *res32)
+{
+ int cmd = (int)cmd_parm;
+ struct nfsctl_arg *karg = NULL;
+ union nfsctl_res *kres = NULL;
+ mm_segment_t oldfs;
+ int err;
+
+ karg = kmalloc(sizeof(*karg), GFP_USER);
+ if(!karg)
+ return -ENOMEM;
+ if(res32) {
+ kres = kmalloc(sizeof(*kres), GFP_USER);
+ if(!kres) {
+ kfree(karg);
+ return -ENOMEM;
+ }
+ }
+ switch(cmd) {
+ case NFSCTL_SVC:
+ err = nfs_svc32_trans(karg, arg32);
+ break;
+ case NFSCTL_ADDCLIENT:
+ err = nfs_clnt32_trans(karg, arg32);
+ break;
+ case NFSCTL_DELCLIENT:
+ err = nfs_clnt32_trans(karg, arg32);
+ break;
+ case NFSCTL_EXPORT:
+ case NFSCTL_UNEXPORT:
+ err = nfs_exp32_trans(karg, arg32);
+ break;
+ /* This one is unimplemented, be we're ready for it. */
+ case NFSCTL_UGIDUPDATE:
+ err = nfs_uud32_trans(karg, arg32);
+ break;
+ case NFSCTL_GETFH:
+ err = nfs_getfh32_trans(karg, arg32);
+ break;
+ case NFSCTL_GETFD:
+ err = nfs_getfd32_trans(karg, arg32);
+ break;
+ case NFSCTL_GETFS:
+ err = nfs_getfs32_trans(karg, arg32);
+ break;
+ default:
+ err = -EINVAL;
+ break;
+ }
+ if(err)
+ goto done;
+ oldfs = get_fs();
+ set_fs(KERNEL_DS);
+ err = sys_nfsservctl(cmd, karg, kres);
+ set_fs(oldfs);
+
+ if (err)
+ goto done;
+
+ if((cmd == NFSCTL_GETFH) ||
+ (cmd == NFSCTL_GETFD) ||
+ (cmd == NFSCTL_GETFS))
+ err = nfs_getfh32_res_trans(kres, res32);
+
+done:
+ if(karg) {
+ if(cmd == NFSCTL_UGIDUPDATE) {
+ if(karg->ca_umap.ug_ident)
+ kfree(karg->ca_umap.ug_ident);
+ if(karg->ca_umap.ug_udimap)
+ kfree(karg->ca_umap.ug_udimap);
+ if(karg->ca_umap.ug_gdimap)
+ kfree(karg->ca_umap.ug_gdimap);
+ }
+ kfree(karg);
+ }
+ if(kres)
+ kfree(kres);
+ return err;
+}
+
+
+
+struct timespec32 {
+ s32 tv_sec;
+ s32 tv_nsec;
+};
+
+extern asmlinkage long sys_nanosleep(struct timespec *rqtp, struct timespec *rmtp);
+
+asmlinkage long sys32_nanosleep(struct timespec32 *rqtp, struct timespec32 *rmtp)
+{
+ struct timespec t;
+ int ret;
+ mm_segment_t old_fs = get_fs ();
+
+ PPCDBG(PPCDBG_SYS32NI, "sys32_nanosleep - running - pid=%ld, comm=%s \n", current->pid, current->comm);
+
+ if (get_user (t.tv_sec, &rqtp->tv_sec) ||
+ __get_user (t.tv_nsec, &rqtp->tv_nsec))
+ return -EFAULT;
+ set_fs (KERNEL_DS);
+ ret = sys_nanosleep(&t, rmtp ? &t : NULL);
+ set_fs (old_fs);
+ if (rmtp && ret == -EINTR) {
+ if (__put_user (t.tv_sec, &rmtp->tv_sec) ||
+ __put_user (t.tv_nsec, &rmtp->tv_nsec))
+ return -EFAULT;
+ }
+
+ return ret;
+}
+
+
+
+
+/* These are here just in case some old sparc32 binary calls it. */
+asmlinkage long sys32_pause(void)
+{
+
+ PPCDBG(PPCDBG_SYS32, "sys32_pause - running - pid=%ld, comm=%s \n", current->pid, current->comm);
+
+ current->state = TASK_INTERRUPTIBLE;
+ schedule();
+
+ return -ERESTARTNOHAND;
+}
+
+
+
+static inline long get_it32(struct itimerval *o, struct itimerval32 *i)
+{
+ return (!access_ok(VERIFY_READ, i, sizeof(*i)) ||
+ (__get_user(o->it_interval.tv_sec, &i->it_interval.tv_sec) |
+ __get_user(o->it_interval.tv_usec, &i->it_interval.tv_usec) |
+ __get_user(o->it_value.tv_sec, &i->it_value.tv_sec) |
+ __get_user(o->it_value.tv_usec, &i->it_value.tv_usec)));
+}
+
+static inline long put_it32(struct itimerval32 *o, struct itimerval *i)
+{
+ return (!access_ok(VERIFY_WRITE, o, sizeof(*o)) ||
+ (__put_user(i->it_interval.tv_sec, &o->it_interval.tv_sec) |
+ __put_user(i->it_interval.tv_usec, &o->it_interval.tv_usec) |
+ __put_user(i->it_value.tv_sec, &o->it_value.tv_sec) |
+ __put_user(i->it_value.tv_usec, &o->it_value.tv_usec)));
+}
+
+static inline long get_tv32(struct timeval *o, struct timeval32 *i)
+{
+ return (!access_ok(VERIFY_READ, i, sizeof(*i)) ||
+ (__get_user(o->tv_sec, &i->tv_sec) |
+ __get_user(o->tv_usec, &i->tv_usec)));
+}
+
+static inline long put_tv32(struct timeval32 *o, struct timeval *i)
+{
+ return (!access_ok(VERIFY_WRITE, o, sizeof(*o)) ||
+ (__put_user(i->tv_sec, &o->tv_sec) |
+ __put_user(i->tv_usec, &o->tv_usec)));
+}
+
+
+
+
+extern int do_getitimer(int which, struct itimerval *value);
+
+/* Note: it is necessary to treat which as an unsigned int,
+ * with the corresponding cast to a signed int to insure that the
+ * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
+ * and the register representation of a signed int (msr in 64-bit mode) is performed.
+ */
+asmlinkage long sys32_getitimer(u32 which, struct itimerval32 *it)
+{
+ struct itimerval kit;
+ int error;
+
+ PPCDBG(PPCDBG_SYS32, "sys32_getitimer - entered - pid=%ld current=%lx comm=%s \n", current->pid, current, current->comm);
+
+ error = do_getitimer((int)which, &kit);
+ if (!error && put_it32(it, &kit))
+ error = -EFAULT;
+
+
+ PPCDBG(PPCDBG_SYS32, "sys32_getitimer - exited - pid=%ld current=%lx comm=%s\n", current->pid, current, current->comm);
+ return error;
+}
+
+
+
+extern int do_setitimer(int which, struct itimerval *, struct itimerval *);
+
+/* Note: it is necessary to treat which as an unsigned int,
+ * with the corresponding cast to a signed int to insure that the
+ * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
+ * and the register representation of a signed int (msr in 64-bit mode) is performed.
+ */
+asmlinkage long sys32_setitimer(u32 which, struct itimerval32 *in, struct itimerval32 *out)
+{
+ struct itimerval kin, kout;
+ int error;
+
+ PPCDBG(PPCDBG_SYS32, "sys32_setitimer - entered - pid=%ld current=%lx comm=%s\n", current->pid, current, current->comm);
+
+ if (in) {
+ if (get_it32(&kin, in))
+ return -EFAULT;
+ } else
+ memset(&kin, 0, sizeof(kin));
+
+ error = do_setitimer((int)which, &kin, out ? &kout : NULL);
+ if (error || !out)
+ return error;
+ if (put_it32(out, &kout))
+ return -EFAULT;
+
+
+ PPCDBG(PPCDBG_SYS32, "sys32_setitimer - exited - pid=%ld current=%lx comm=%s\n", current->pid, current, current->comm);
+ return 0;
+}
+
+#define RLIM_INFINITY32 0xffffffff
+#define RESOURCE32(x) ((x > RLIM_INFINITY32) ? RLIM_INFINITY32 : x)
+
+struct rlimit32 {
+ u32 rlim_cur;
+ u32 rlim_max;
+};
+
+extern asmlinkage long sys_getrlimit(unsigned int resource, struct rlimit *rlim);
+asmlinkage long sys32_getrlimit(unsigned int resource, struct rlimit32 *rlim)
+{
+ struct rlimit r;
+ int ret;
+ mm_segment_t old_fs = get_fs();
+
+ set_fs (KERNEL_DS);
+ ret = sys_getrlimit(resource, &r);
+ set_fs(old_fs);
+ if (!ret) {
+ ret = put_user(RESOURCE32(r.rlim_cur), &rlim->rlim_cur);
+ ret |= __put_user(RESOURCE32(r.rlim_max), &rlim->rlim_max);
+ }
+
+ return ret;
+}
+
+/* Back compatibility for getrlimit. Needed for some apps. */
+asmlinkage long sys32_old_getrlimit(unsigned int resource, struct rlimit32* rlim)
+{
+ struct rlimit x; // 64-bit version of the resource limits.
+ struct rlimit32 x32; // 32-bit version of the resource limits.
+ long rc = 0;
+
+ if (resource >= RLIM_NLIMITS) {
+ PPCDBG(PPCDBG_SYS32, "sys32_old_getrlimit - specified resource is too large (%x) - pid=%ld, comm=%s\n", resource, current->pid, current->comm);
+ return -EINVAL;
+ }
+
+ memcpy(&x, current->rlim+resource, sizeof(struct rlimit));
+
+ if(x.rlim_cur > RLIM_INFINITY32)
+ x32.rlim_cur = RLIM_INFINITY32;
+ else
+ x32.rlim_cur = x.rlim_cur;
+
+ if(x.rlim_max > RLIM_INFINITY32)
+ x32.rlim_max = RLIM_INFINITY32;
+ else
+ x32.rlim_max = x.rlim_max;
+
+ rc = (copy_to_user(rlim, &x32, sizeof(x32))) ? (-EFAULT) : 0;
+ if (rc == 0) {
+ PPCDBG(PPCDBG_SYS32, "sys32_old_getrlimit - current=%x, maximum=%x - pid=%ld, comm=%s\n", x32.rlim_cur, x32.rlim_max, current->pid, current->comm);
+ } else {
+ PPCDBG(PPCDBG_SYS32, "sys32_old_getrlimit - unable to copy into user's storage - pid=%ld, comm=%s\n", current->pid, current->comm);
+ }
+ return rc;
+}
+
+extern asmlinkage long sys_setrlimit(unsigned int resource, struct rlimit *rlim);
+asmlinkage long sys32_setrlimit(unsigned int resource, struct rlimit32 *rlim)
+{
+ struct rlimit r;
+ long ret;
+ mm_segment_t old_fs = get_fs ();
+
+ PPCDBG(PPCDBG_SYS32, "sys32_setrlimit - entered - resource=%x, rlim=%p - pid=%ld, comm=%s\n", resource, rlim, current->pid, current->comm);
+
+ if (resource >= RLIM_NLIMITS) return -EINVAL;
+ if (get_user (r.rlim_cur, &rlim->rlim_cur) ||
+ __get_user (r.rlim_max, &rlim->rlim_max))
+ return -EFAULT;
+ if (r.rlim_cur >= RLIM_INFINITY32)
+ r.rlim_cur = RLIM_INFINITY;
+ if (r.rlim_max >= RLIM_INFINITY32)
+ r.rlim_max = RLIM_INFINITY;
+ set_fs (KERNEL_DS);
+ ret = sys_setrlimit(resource, &r);
+ set_fs (old_fs);
+
+ PPCDBG(PPCDBG_SYS32, "sys32_setrlimit - exited w/ ret=%x - pid=%ld, comm=%s\n", ret, current->pid, current->comm);
+ return ret;
+}
+
+
+struct rusage32 {
+ struct timeval32 ru_utime;
+ struct timeval32 ru_stime;
+ s32 ru_maxrss;
+ s32 ru_ixrss;
+ s32 ru_idrss;
+ s32 ru_isrss;
+ s32 ru_minflt;
+ s32 ru_majflt;
+ s32 ru_nswap;
+ s32 ru_inblock;
+ s32 ru_oublock;
+ s32 ru_msgsnd;
+ s32 ru_msgrcv;
+ s32 ru_nsignals;
+ s32 ru_nvcsw;
+ s32 ru_nivcsw;
+};
+
+static int put_rusage (struct rusage32 *ru, struct rusage *r)
+{
+ int err;
+
+ err = put_user (r->ru_utime.tv_sec, &ru->ru_utime.tv_sec);
+ err |= __put_user (r->ru_utime.tv_usec, &ru->ru_utime.tv_usec);
+ err |= __put_user (r->ru_stime.tv_sec, &ru->ru_stime.tv_sec);
+ err |= __put_user (r->ru_stime.tv_usec, &ru->ru_stime.tv_usec);
+ err |= __put_user (r->ru_maxrss, &ru->ru_maxrss);
+ err |= __put_user (r->ru_ixrss, &ru->ru_ixrss);
+ err |= __put_user (r->ru_idrss, &ru->ru_idrss);
+ err |= __put_user (r->ru_isrss, &ru->ru_isrss);
+ err |= __put_user (r->ru_minflt, &ru->ru_minflt);
+ err |= __put_user (r->ru_majflt, &ru->ru_majflt);
+ err |= __put_user (r->ru_nswap, &ru->ru_nswap);
+ err |= __put_user (r->ru_inblock, &ru->ru_inblock);
+ err |= __put_user (r->ru_oublock, &ru->ru_oublock);
+ err |= __put_user (r->ru_msgsnd, &ru->ru_msgsnd);
+ err |= __put_user (r->ru_msgrcv, &ru->ru_msgrcv);
+ err |= __put_user (r->ru_nsignals, &ru->ru_nsignals);
+ err |= __put_user (r->ru_nvcsw, &ru->ru_nvcsw);
+ err |= __put_user (r->ru_nivcsw, &ru->ru_nivcsw);
+ return err;
+}
+
+
+extern asmlinkage long sys_getrusage(int who, struct rusage *ru);
+
+/* Note: it is necessary to treat who as an unsigned int,
+ * with the corresponding cast to a signed int to insure that the
+ * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
+ * and the register representation of a signed int (msr in 64-bit mode) is performed.
+ */
+asmlinkage long sys32_getrusage(u32 who, struct rusage32 *ru)
+{
+ struct rusage r;
+ int ret;
+ mm_segment_t old_fs = get_fs();
+
+ PPCDBG(PPCDBG_SYS32X, "sys32_getrusage - running - pid=%ld, comm=%s\n", current->pid, current->comm);
+
+ set_fs (KERNEL_DS);
+ ret = sys_getrusage((int)who, &r);
+ set_fs (old_fs);
+ if (put_rusage (ru, &r))
+ return -EFAULT;
+
+ return ret;
+}
+
+
+
+
+struct sysinfo32 {
+ s32 uptime;
+ u32 loads[3];
+ u32 totalram;
+ u32 freeram;
+ u32 sharedram;
+ u32 bufferram;
+ u32 totalswap;
+ u32 freeswap;
+ unsigned short procs;
+ char _f[22];
+};
+
+extern asmlinkage long sys_sysinfo(struct sysinfo *info);
+
+asmlinkage long sys32_sysinfo(struct sysinfo32 *info)
+{
+ struct sysinfo s;
+ int ret, err;
+ mm_segment_t old_fs = get_fs ();
+
+ PPCDBG(PPCDBG_SYS32, "sys32_sysinfo - entered - pid=%ld current=%lx comm=%s \n", current->pid, current, current->comm);
+
+ set_fs (KERNEL_DS);
+ ret = sys_sysinfo(&s);
+ set_fs (old_fs);
+ err = put_user (s.uptime, &info->uptime);
+ err |= __put_user (s.loads[0], &info->loads[0]);
+ err |= __put_user (s.loads[1], &info->loads[1]);
+ err |= __put_user (s.loads[2], &info->loads[2]);
+ err |= __put_user (s.totalram, &info->totalram);
+ err |= __put_user (s.freeram, &info->freeram);
+ err |= __put_user (s.sharedram, &info->sharedram);
+ err |= __put_user (s.bufferram, &info->bufferram);
+ err |= __put_user (s.totalswap, &info->totalswap);
+ err |= __put_user (s.freeswap, &info->freeswap);
+ err |= __put_user (s.procs, &info->procs);
+ if (err)
+ return -EFAULT;
+
+ PPCDBG(PPCDBG_SYS32, "sys32_sysinfo - exited - pid=%ld current=%lx comm=%s \n", current->pid, current, current->comm);
+
+ return ret;
+}
+
+
+
+
+/* Translations due to time_t size differences. Which affects all
+ sorts of things, like timeval and itimerval. */
+extern struct timezone sys_tz;
+extern int do_sys_settimeofday(struct timeval *tv, struct timezone *tz);
+
+asmlinkage long sys32_gettimeofday(struct timeval32 *tv, struct timezone *tz)
+{
+
+ PPCDBG(PPCDBG_SYS32X, "sys32_gettimeofday - running - pid=%ld, comm=%s\n", current->pid, current->comm);
+
+ if (tv) {
+ struct timeval ktv;
+ do_gettimeofday(&ktv);
+ if (put_tv32(tv, &ktv))
+ return -EFAULT;
+ }
+ if (tz) {
+ if (copy_to_user(tz, &sys_tz, sizeof(sys_tz)))
+ return -EFAULT;
+ }
+
+ return 0;
+}
+
+
+
+asmlinkage long sys32_settimeofday(struct timeval32 *tv, struct timezone *tz)
+{
+ struct timeval ktv;
+ struct timezone ktz;
+
+ PPCDBG(PPCDBG_SYS32, "sys32_settimeofday - running - pid=%ld current=%lx comm=%s \n", current->pid, current, current->comm);
+
+ if (tv) {
+ if (get_tv32(&ktv, tv))
+ return -EFAULT;
+ }
+ if (tz) {
+ if (copy_from_user(&ktz, tz, sizeof(ktz)))
+ return -EFAULT;
+ }
+
+ return do_sys_settimeofday(tv ? &ktv : NULL, tz ? &ktz : NULL);
+}
+
+
+
+
+struct tms32 {
+ __kernel_clock_t32 tms_utime;
+ __kernel_clock_t32 tms_stime;
+ __kernel_clock_t32 tms_cutime;
+ __kernel_clock_t32 tms_cstime;
+};
+
+extern asmlinkage long sys_times(struct tms * tbuf);
+
+asmlinkage long sys32_times(struct tms32 *tbuf)
+{
+ struct tms t;
+ long ret;
+ mm_segment_t old_fs = get_fs ();
+ int err;
+
+ PPCDBG(PPCDBG_SYS32, "sys32_times - entered - pid=%ld current=%lx comm=%s \n", current->pid, current, current->comm);
+
+ set_fs (KERNEL_DS);
+ ret = sys_times(tbuf ? &t : NULL);
+ set_fs (old_fs);
+ if (tbuf) {
+ err = put_user (t.tms_utime, &tbuf->tms_utime);
+ err |= __put_user (t.tms_stime, &tbuf->tms_stime);
+ err |= __put_user (t.tms_cutime, &tbuf->tms_cutime);
+ err |= __put_user (t.tms_cstime, &tbuf->tms_cstime);
+ if (err)
+ ret = -EFAULT;
+ }
+
+ PPCDBG(PPCDBG_SYS32, "sys32_times - exited - pid=%ld current=%lx comm=%s \n", current->pid, current, current->comm);
+
+ return ret;
+}
+
+struct msgbuf32 { s32 mtype; char mtext[1]; };
+
+struct semid_ds32 {
+ struct ipc_perm sem_perm;
+ __kernel_time_t32 sem_otime;
+ __kernel_time_t32 sem_ctime;
+ u32 sem_base;
+ u32 sem_pending;
+ u32 sem_pending_last;
+ u32 undo;
+ unsigned short sem_nsems;
+};
+
+struct semid64_ds32 {
+ struct ipc64_perm sem_perm;
+ unsigned int __unused1;
+ __kernel_time_t32 sem_otime;
+ unsigned int __unused2;
+ __kernel_time_t32 sem_ctime;
+ u32 sem_nsems;
+ u32 __unused3;
+ u32 __unused4;
+};
+
+struct msqid_ds32
+{
+ struct ipc_perm msg_perm;
+ u32 msg_first;
+ u32 msg_last;
+ __kernel_time_t32 msg_stime;
+ __kernel_time_t32 msg_rtime;
+ __kernel_time_t32 msg_ctime;
+ u32 msg_lcbytes;
+ u32 msg_lqbytes;
+ unsigned short msg_cbytes;
+ unsigned short msg_qnum;
+ unsigned short msg_qbytes;
+ __kernel_ipc_pid_t32 msg_lspid;
+ __kernel_ipc_pid_t32 msg_lrpid;
+};
+
+struct msqid64_ds32 {
+ struct ipc64_perm msg_perm;
+ unsigned int __unused1;
+ __kernel_time_t32 msg_stime;
+ unsigned int __unused2;
+ __kernel_time_t32 msg_rtime;
+ unsigned int __unused3;
+ __kernel_time_t32 msg_ctime;
+ unsigned int msg_cbytes;
+ unsigned int msg_qnum;
+ unsigned int msg_qbytes;
+ __kernel_pid_t32 msg_lspid;
+ __kernel_pid_t32 msg_lrpid;
+ unsigned int __unused4;
+ unsigned int __unused5;
+};
+
+struct shmid_ds32 {
+ struct ipc_perm shm_perm;
+ int shm_segsz;
+ __kernel_time_t32 shm_atime;
+ __kernel_time_t32 shm_dtime;
+ __kernel_time_t32 shm_ctime;
+ __kernel_ipc_pid_t32 shm_cpid;
+ __kernel_ipc_pid_t32 shm_lpid;
+ unsigned short shm_nattch;
+ unsigned short __unused;
+ unsigned int __unused2;
+ unsigned int __unused3;
+};
+
+struct shmid64_ds32 {
+ struct ipc64_perm shm_perm;
+ unsigned int __unused1;
+ __kernel_time_t32 shm_atime;
+ unsigned int __unused2;
+ __kernel_time_t32 shm_dtime;
+ unsigned int __unused3;
+ __kernel_time_t32 shm_ctime;
+ unsigned int __unused4;
+ __kernel_size_t32 shm_segsz;
+ __kernel_pid_t32 shm_cpid;
+ __kernel_pid_t32 shm_lpid;
+ unsigned int shm_nattch;
+ unsigned int __unused5;
+ unsigned int __unused6;
+};
+
+/*
+ * sys32_ipc() is the de-multiplexer for the SysV IPC calls in 32bit
+ * emulation..
+ *
+ * This is really horribly ugly.
+ */
+static long do_sys32_semctl(int first, int second, int third, void *uptr)
+{
+ union semun fourth;
+ u32 pad;
+ int err, err2;
+ mm_segment_t old_fs;
+
+ if (!uptr)
+ return -EINVAL;
+ err = -EFAULT;
+ if (get_user(pad, (u32 *)uptr))
+ return err;
+ if (third == SETVAL)
+ fourth.val = (int)pad;
+ else
+ fourth.__pad = (void *)A(pad);
+ switch (third & (~IPC_64)) {
+
+ case IPC_INFO:
+ case IPC_RMID:
+ case SEM_INFO:
+ case GETVAL:
+ case GETPID:
+ case GETNCNT:
+ case GETZCNT:
+ case GETALL:
+ case SETALL:
+ case SETVAL:
+ err = sys_semctl(first, second, third, fourth);
+ break;
+
+ case IPC_STAT:
+ case SEM_STAT:
+ if (third & IPC_64) {
+ struct semid64_ds s64;
+ struct semid64_ds32 *usp;
+
+ usp = (struct semid64_ds32 *)A(pad);
+ fourth.__pad = &s64;
+ old_fs = get_fs();
+ set_fs(KERNEL_DS);
+ err = sys_semctl(first, second, third, fourth);
+ set_fs(old_fs);
+ err2 = copy_to_user(&usp->sem_perm, &s64.sem_perm,
+ sizeof(struct ipc64_perm));
+ err2 |= __put_user(s64.sem_otime, &usp->sem_otime);
+ err2 |= __put_user(s64.sem_ctime, &usp->sem_ctime);
+ err2 |= __put_user(s64.sem_nsems, &usp->sem_nsems);
+ if (err2)
+ err = -EFAULT;
+ } else {
+ struct semid_ds s;
+ struct semid_ds32 *usp;
+
+ usp = (struct semid_ds32 *)A(pad);
+ fourth.__pad = &s;
+ old_fs = get_fs();
+ set_fs(KERNEL_DS);
+ err = sys_semctl(first, second, third, fourth);
+ set_fs(old_fs);
+ err2 = copy_to_user(&usp->sem_perm, &s.sem_perm,
+ sizeof(struct ipc_perm));
+ err2 |= __put_user(s.sem_otime, &usp->sem_otime);
+ err2 |= __put_user(s.sem_ctime, &usp->sem_ctime);
+ err2 |= __put_user(s.sem_nsems, &usp->sem_nsems);
+ if (err2)
+ err = -EFAULT;
+ }
+ break;
+
+ case IPC_SET:
+ if (third & IPC_64) {
+ struct semid64_ds s64;
+ struct semid64_ds32 *usp;
+
+ usp = (struct semid64_ds32 *)A(pad);
+
+ err = get_user(s64.sem_perm.uid, &usp->sem_perm.uid);
+ err |= __get_user(s64.sem_perm.gid,
+ &usp->sem_perm.gid);
+ err |= __get_user(s64.sem_perm.mode,
+ &usp->sem_perm.mode);
+ if (err)
+ goto out;
+ fourth.__pad = &s64;
+
+ old_fs = get_fs();
+ set_fs(KERNEL_DS);
+ err = sys_semctl(first, second, third, fourth);
+ set_fs(old_fs);
+
+ } else {
+ struct semid_ds s;
+ struct semid_ds32 *usp;
+
+ usp = (struct semid_ds32 *)A(pad);
+
+ err = get_user(s.sem_perm.uid, &usp->sem_perm.uid);
+ err |= __get_user(s.sem_perm.gid,
+ &usp->sem_perm.gid);
+ err |= __get_user(s.sem_perm.mode,
+ &usp->sem_perm.mode);
+ if (err)
+ goto out;
+ fourth.__pad = &s;
+
+ old_fs = get_fs();
+ set_fs(KERNEL_DS);
+ err = sys_semctl(first, second, third, fourth);
+ set_fs(old_fs);
+ }
+ break;
+ }
+out:
+ return err;
+}
+
+static int
+do_sys32_msgsnd(int first, int second, int third, void *uptr)
+{
+ struct msgbuf *p;
+ struct msgbuf32 *up = (struct msgbuf32 *)uptr;
+ mm_segment_t old_fs;
+ int err;
+
+ if (second < 0)
+ return -EINVAL;
+
+ p = kmalloc(second + sizeof(struct msgbuf) + 4, GFP_USER);
+ if (!p)
+ return -ENOMEM;
+ err = get_user(p->mtype, &up->mtype);
+ err |= __copy_from_user(p->mtext, &up->mtext, second);
+ if (err) {
+ err = -EFAULT;
+ goto out;
+ }
+ old_fs = get_fs();
+ set_fs(KERNEL_DS);
+ err = sys_msgsnd(first, p, second, third);
+ set_fs(old_fs);
+out:
+ kfree(p);
+ return err;
+}
+
+static int
+do_sys32_msgrcv(int first, int second, int msgtyp, int third,
+ int version, void *uptr)
+{
+ struct msgbuf32 *up;
+ struct msgbuf *p;
+ mm_segment_t old_fs;
+ int err;
+
+ if (second < 0)
+ return -EINVAL;
+
+ if (!version) {
+ struct ipc_kludge *uipck = (struct ipc_kludge *)uptr;
+ struct ipc_kludge ipck;
+
+ err = -EINVAL;
+ if (!uptr)
+ goto out;
+ err = -EFAULT;
+ if (copy_from_user(&ipck, uipck, sizeof(struct ipc_kludge)))
+ goto out;
+ uptr = (void *)A(ipck.msgp);
+ msgtyp = ipck.msgtyp;
+ }
+ err = -ENOMEM;
+ p = kmalloc(second + sizeof (struct msgbuf) + 4, GFP_USER);
+ if (!p)
+ goto out;
+ old_fs = get_fs();
+ set_fs(KERNEL_DS);
+ err = sys_msgrcv(first, p, second + 4, msgtyp, third);
+ set_fs(old_fs);
+ if (err < 0)
+ goto free_then_out;
+ up = (struct msgbuf32 *)uptr;
+ if (put_user(p->mtype, &up->mtype) ||
+ __copy_to_user(&up->mtext, p->mtext, err))
+ err = -EFAULT;
+free_then_out:
+ kfree(p);
+out:
+ return err;
+}
+
+static int
+do_sys32_msgctl(int first, int second, void *uptr)
+{
+ int err = -EINVAL, err2;
+ mm_segment_t old_fs;
+
+ switch (second & (~IPC_64)) {
+
+ case IPC_INFO:
+ case IPC_RMID:
+ case MSG_INFO:
+ err = sys_msgctl(first, second, (struct msqid_ds *)uptr);
+ break;
+
+ case IPC_SET:
+ if (second & IPC_64) {
+ struct msqid64_ds m64;
+ struct msqid64_ds32 *up = (struct msqid64_ds32 *)uptr;
+
+ err2 = copy_from_user(&m64.msg_perm, &up->msg_perm,
+ sizeof(struct ipc64_perm));
+ err2 |= __get_user(m64.msg_qbytes, &up->msg_qbytes);
+ if (err2) {
+ err = -EFAULT;
+ break;
+ }
+ old_fs = get_fs();
+ set_fs(KERNEL_DS);
+ err = sys_msgctl(first, second,
+ (struct msqid_ds *)&m64);
+ set_fs(old_fs);
+ } else {
+ struct msqid_ds m;
+ struct msqid_ds32 *up = (struct msqid_ds32 *)uptr;
+
+ err2 = copy_from_user(&m.msg_perm, &up->msg_perm,
+ sizeof(struct ipc_perm));
+ err2 |= __get_user(m.msg_qbytes, &up->msg_qbytes);
+ if (err2) {
+ err = -EFAULT;
+ break;
+ }
+ old_fs = get_fs();
+ set_fs(KERNEL_DS);
+ err = sys_msgctl(first, second, &m);
+ set_fs(old_fs);
+ }
+ break;
+
+ case IPC_STAT:
+ case MSG_STAT:
+ if (second & IPC_64) {
+ struct msqid64_ds m64;
+ struct msqid64_ds32 *up = (struct msqid64_ds32 *)uptr;
+
+ old_fs = get_fs();
+ set_fs(KERNEL_DS);
+ err = sys_msgctl(first, second,
+ (struct msqid_ds *)&m64);
+ set_fs(old_fs);
+
+ err2 = copy_to_user(&up->msg_perm, &m64.msg_perm,
+ sizeof(struct ipc64_perm));
+ err2 |= __put_user(m64.msg_stime, &up->msg_stime);
+ err2 |= __put_user(m64.msg_rtime, &up->msg_rtime);
+ err2 |= __put_user(m64.msg_ctime, &up->msg_ctime);
+ err2 |= __put_user(m64.msg_cbytes, &up->msg_cbytes);
+ err2 |= __put_user(m64.msg_qnum, &up->msg_qnum);
+ err2 |= __put_user(m64.msg_qbytes, &up->msg_qbytes);
+ err2 |= __put_user(m64.msg_lspid, &up->msg_lspid);
+ err2 |= __put_user(m64.msg_lrpid, &up->msg_lrpid);
+ if (err2)
+ err = -EFAULT;
+ } else {
+ struct msqid64_ds m;
+ struct msqid_ds32 *up = (struct msqid_ds32 *)uptr;
+
+ old_fs = get_fs();
+ set_fs(KERNEL_DS);
+ err = sys_msgctl(first, second, (struct msqid_ds *)&m);
+ set_fs(old_fs);
+
+ err2 = copy_to_user(&up->msg_perm, &m.msg_perm,
+ sizeof(struct ipc_perm));
+ err2 |= __put_user(m.msg_stime, &up->msg_stime);
+ err2 |= __put_user(m.msg_rtime, &up->msg_rtime);
+ err2 |= __put_user(m.msg_ctime, &up->msg_ctime);
+ err2 |= __put_user(m.msg_cbytes, &up->msg_cbytes);
+ err2 |= __put_user(m.msg_qnum, &up->msg_qnum);
+ err2 |= __put_user(m.msg_qbytes, &up->msg_qbytes);
+ err2 |= __put_user(m.msg_lspid, &up->msg_lspid);
+ err2 |= __put_user(m.msg_lrpid, &up->msg_lrpid);
+ if (err2)
+ err = -EFAULT;
+ }
+ break;
+ }
+#if 0
+ udbg_printf(" err3 = 0x%lx\n", err);
+#endif
+ return err;
+}
+
+static int
+do_sys32_shmat(int first, int second, int third, int version, void *uptr)
+{
+ unsigned long raddr;
+ u32 *uaddr = (u32 *)A((u32)third);
+ int err = -EINVAL;
+
+ if (version == 1)
+ return err;
+ err = sys_shmat(first, uptr, second, &raddr);
+ if (err)
+ return err;
+ err = put_user(raddr, uaddr);
+ return err;
+}
+
+static int
+do_sys32_shmctl(int first, int second, void *uptr)
+{
+ int err = -EFAULT, err2;
+ mm_segment_t old_fs;
+
+ switch (second & (~IPC_64)) {
+
+ case IPC_INFO:
+ case IPC_RMID:
+ case SHM_LOCK:
+ case SHM_UNLOCK:
+ err = sys_shmctl(first, second, (struct shmid_ds *)uptr);
+ break;
+ case IPC_SET:
+ if (second & IPC_64) {
+ struct shmid64_ds32 *up = (struct shmid64_ds32 *)uptr;
+ struct shmid64_ds s64;
+
+ err = get_user(s64.shm_perm.uid, &up->shm_perm.uid);
+ err |= __get_user(s64.shm_perm.gid, &up->shm_perm.gid);
+ err |= __get_user(s64.shm_perm.mode,
+ &up->shm_perm.mode);
+ if (err)
+ break;
+ old_fs = get_fs();
+ set_fs(KERNEL_DS);
+ err = sys_shmctl(first, second,
+ (struct shmid_ds *)&s64);
+ set_fs(old_fs);
+ } else {
+ struct shmid_ds32 *up = (struct shmid_ds32 *)uptr;
+ struct shmid_ds s;
+
+ err = get_user(s.shm_perm.uid, &up->shm_perm.uid);
+ err |= __get_user(s.shm_perm.gid, &up->shm_perm.gid);
+ err |= __get_user(s.shm_perm.mode, &up->shm_perm.mode);
+ if (err)
+ break;
+ old_fs = get_fs();
+ set_fs(KERNEL_DS);
+ err = sys_shmctl(first, second, &s);
+ set_fs(old_fs);
+ }
+ break;
+
+ case IPC_STAT:
+ case SHM_STAT:
+ if (second & IPC_64) {
+ struct shmid64_ds32 *up = (struct shmid64_ds32 *)uptr;
+ struct shmid64_ds s64;
+
+ old_fs = get_fs();
+ set_fs(KERNEL_DS);
+ err = sys_shmctl(first, second,
+ (struct shmid_ds *)&s64);
+ set_fs(old_fs);
+ if (err < 0)
+ break;
+
+ err2 = copy_to_user(&up->shm_perm, &s64.shm_perm,
+ sizeof(struct ipc64_perm));
+ err2 |= __put_user(s64.shm_atime, &up->shm_atime);
+ err2 |= __put_user(s64.shm_dtime, &up->shm_dtime);
+ err2 |= __put_user(s64.shm_ctime, &up->shm_ctime);
+ err2 |= __put_user(s64.shm_segsz, &up->shm_segsz);
+ err2 |= __put_user(s64.shm_nattch, &up->shm_nattch);
+ err2 |= __put_user(s64.shm_cpid, &up->shm_cpid);
+ err2 |= __put_user(s64.shm_lpid, &up->shm_lpid);
+ if (err2)
+ err = -EFAULT;
+ } else {
+ struct shmid_ds32 *up = (struct shmid_ds32 *)uptr;
+ struct shmid_ds s;
+
+ old_fs = get_fs();
+ set_fs(KERNEL_DS);
+ err = sys_shmctl(first, second, &s);
+ set_fs(old_fs);
+ if (err < 0)
+ break;
+
+ err2 = copy_to_user(&up->shm_perm, &s.shm_perm,
+ sizeof(struct ipc_perm));
+ err2 |= __put_user (s.shm_atime, &up->shm_atime);
+ err2 |= __put_user (s.shm_dtime, &up->shm_dtime);
+ err2 |= __put_user (s.shm_ctime, &up->shm_ctime);
+ err2 |= __put_user (s.shm_segsz, &up->shm_segsz);
+ err2 |= __put_user (s.shm_nattch, &up->shm_nattch);
+ err2 |= __put_user (s.shm_cpid, &up->shm_cpid);
+ err2 |= __put_user (s.shm_lpid, &up->shm_lpid);
+ if (err2)
+ err = -EFAULT;
+ }
+ break;
+
+ case SHM_INFO: {
+ struct shm_info si;
+ struct shm_info32 {
+ int used_ids;
+ u32 shm_tot, shm_rss, shm_swp;
+ u32 swap_attempts, swap_successes;
+ } *uip = (struct shm_info32 *)uptr;
+
+ old_fs = get_fs();
+ set_fs(KERNEL_DS);
+ err = sys_shmctl(first, second, (struct shmid_ds *)&si);
+ set_fs(old_fs);
+ if (err < 0)
+ break;
+ err2 = put_user(si.used_ids, &uip->used_ids);
+ err2 |= __put_user(si.shm_tot, &uip->shm_tot);
+ err2 |= __put_user(si.shm_rss, &uip->shm_rss);
+ err2 |= __put_user(si.shm_swp, &uip->shm_swp);
+ err2 |= __put_user(si.swap_attempts, &uip->swap_attempts);
+ err2 |= __put_user(si.swap_successes, &uip->swap_successes);
+ if (err2)
+ err = -EFAULT;
+ break;
+ }
+ }
+ return err;
+}
+
+/*
+ * Note: it is necessary to treat first_parm, second_parm, and
+ * third_parm as unsigned ints, with the corresponding cast to a
+ * signed int to insure that the proper conversion (sign extension)
+ * between the register representation of a signed int (msr in 32-bit
+ * mode) and the register representation of a signed int (msr in
+ * 64-bit mode) is performed.
+ */
+asmlinkage long sys32_ipc(u32 call, u32 first_parm, u32 second_parm, u32 third_parm, u32 ptr, u32 fifth)
+{
+ int first = (int)first_parm;
+ int second = (int)second_parm;
+ int third = (int)third_parm;
+ int version, err;
+
+ PPCDBG(PPCDBG_SYS32, "sys32_ipc - entered - call=%x, parm1=%x, parm2=%x, parm3=%x, parm4=%x, parm5=%x \n",
+ call, first_parm, second_parm, third_parm, ptr, fifth);
+
+ version = call >> 16; /* hack for backward compatibility */
+ call &= 0xffff;
+
+ switch (call) {
+
+ case SEMOP:
+ /* struct sembuf is the same on 32 and 64bit :)) */
+ err = sys_semop(first, (struct sembuf *)AA(ptr),
+ second);
+ break;
+ case SEMGET:
+ err = sys_semget(first, second, third);
+ break;
+ case SEMCTL:
+ err = do_sys32_semctl(first, second, third,
+ (void *)AA(ptr));
+ break;
+
+ case MSGSND:
+ err = do_sys32_msgsnd(first, second, third,
+ (void *)AA(ptr));
+ break;
+ case MSGRCV:
+ err = do_sys32_msgrcv(first, second, fifth, third,
+ version, (void *)AA(ptr));
+ break;
+ case MSGGET:
+ err = sys_msgget((key_t)first, second);
+ break;
+ case MSGCTL:
+ err = do_sys32_msgctl(first, second, (void *)AA(ptr));
+ break;
+
+ case SHMAT:
+ err = do_sys32_shmat(first, second, third,
+ version, (void *)AA(ptr));
+ break;
+ case SHMDT:
+ err = sys_shmdt((char *)AA(ptr));
+ break;
+ case SHMGET:
+ err = sys_shmget(first, second, third);
+ break;
+ case SHMCTL:
+ err = do_sys32_shmctl(first, second, (void *)AA(ptr));
+ break;
+ default:
+ err = -EINVAL;
+ break;
+ }
+
+
+ PPCDBG(PPCDBG_SYS32, "sys32_ipc - exited w/ %d/0x%x \n", err, err);
+ return err;
+}
+
+/* stat syscall methods. */
+extern asmlinkage int sys_stat(char* filename, struct __old_kernel_stat* statbuf);
+
+static int cp_old_stat32(struct inode* inode, struct __old_kernel_stat32* statbuf)
+{
+ static int warncount = 5;
+ struct __old_kernel_stat32 tmp;
+
+ if (warncount) {
+ warncount--;
+ printk("VFS: Warning: %s using old stat() call. Recompile your binary.\n",
+ current->comm);
+ }
+
+ tmp.st_dev = kdev_t_to_nr(inode->i_dev);
+ tmp.st_ino = inode->i_ino;
+ tmp.st_mode = inode->i_mode;
+ tmp.st_nlink = inode->i_nlink;
+ SET_OLDSTAT_UID(tmp, inode->i_uid);
+ SET_OLDSTAT_GID(tmp, inode->i_gid);
+ tmp.st_rdev = kdev_t_to_nr(inode->i_rdev);
+ tmp.st_size = inode->i_size;
+ tmp.st_atime = inode->i_atime;
+ tmp.st_mtime = inode->i_mtime;
+ tmp.st_ctime = inode->i_ctime;
+ return copy_to_user(statbuf,&tmp,sizeof(tmp)) ? -EFAULT : 0;
+}
+
+asmlinkage long sys32_stat(char* filename, struct __old_kernel_stat32* statbuf)
+{
+ struct nameidata nd;
+ int error;
+
+ PPCDBG(PPCDBG_SYS32X, "sys32_stat - entered - pid=%ld current=%lx comm=%s \n", current->pid, current, current->comm);
+
+ error = user_path_walk(filename, &nd);
+ if (!error) {
+ error = do_revalidate(nd.dentry);
+ if (!error)
+ error = cp_old_stat32(nd.dentry->d_inode, statbuf);
+ path_release(&nd);
+ }
+
+ PPCDBG(PPCDBG_SYS32X, "sys32_stat - exited - pid=%ld current=%lx comm=%s \n", current->pid, current, current->comm);
+
+ return error;
+}
+
+asmlinkage long sys32_fstat(unsigned int fd, struct __old_kernel_stat32* statbuf)
+{
+ struct file *f;
+ int err = -EBADF;
+
+ PPCDBG(PPCDBG_SYS32X, "sys32_fstat - entered - pid=%ld current=%lx comm=%s \n", current->pid, current, current->comm);
+
+ f = fget(fd);
+ if (f) {
+ struct dentry * dentry = f->f_dentry;
+
+ err = do_revalidate(dentry);
+ if (!err)
+ err = cp_old_stat32(dentry->d_inode, statbuf);
+ fput(f);
+ }
+
+ PPCDBG(PPCDBG_SYS32X, "sys32_fstat - exited - pid=%ld current=%lx comm=%s \n", current->pid, current, current->comm);
+
+ return err;
+}
+
+asmlinkage long sys32_lstat(char* filename, struct __old_kernel_stat32* statbuf)
+{
+ struct nameidata nd;
+ int error;
+
+ PPCDBG(PPCDBG_SYS32X, "sys32_lstat - entered - pid=%ld current=%lx comm=%s \n", current->pid, current, current->comm);
+
+ error = user_path_walk_link(filename, &nd);
+ if (!error) {
+ error = do_revalidate(nd.dentry);
+ if (!error)
+ error = cp_old_stat32(nd.dentry->d_inode, statbuf);
+
+ path_release(&nd);
+ }
+
+ PPCDBG(PPCDBG_SYS32X, "sys32_lstat - exited - pid=%ld current=%lx comm=%s \n", current->pid, current, current->comm);
+
+ return error;
+}
+
+extern asmlinkage ssize_t sys_sendfile(int out_fd, int in_fd, off_t* offset, size_t count);
+
+/* Note: it is necessary to treat out_fd and in_fd as unsigned ints,
+ * with the corresponding cast to a signed int to insure that the
+ * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
+ * and the register representation of a signed int (msr in 64-bit mode) is performed.
+ */
+asmlinkage long sys32_sendfile(u32 out_fd, u32 in_fd, __kernel_off_t32* offset, u32 count)
+{
+ mm_segment_t old_fs = get_fs();
+ int ret;
+ off_t of;
+
+ if (offset && get_user(of, offset))
+ return -EFAULT;
+
+ set_fs(KERNEL_DS);
+ ret = sys_sendfile((int)out_fd, (int)in_fd, offset ? &of : NULL, count);
+ set_fs(old_fs);
+
+ if (offset && put_user(of, offset))
+ return -EFAULT;
+
+ return ret;
+}
+
+extern asmlinkage int sys_setsockopt(int fd, int level, int optname, char *optval, int optlen);
+
+asmlinkage long sys32_setsockopt(int fd, int level, int optname, char* optval, int optlen)
+{
+
+ PPCDBG(PPCDBG_SYS32,"sys32_setsockopt - running - pid=%ld, comm=%s\n", current->pid, current->comm);
+
+ if (optname == SO_ATTACH_FILTER) {
+ struct sock_fprog32 {
+ __u16 len;
+ __u32 filter;
+ } *fprog32 = (struct sock_fprog32 *)optval;
+ struct sock_fprog kfprog;
+ struct sock_filter *kfilter;
+ unsigned int fsize;
+ mm_segment_t old_fs;
+ __u32 uptr;
+ int ret;
+
+ if (get_user(kfprog.len, &fprog32->len) ||
+ __get_user(uptr, &fprog32->filter))
+ return -EFAULT;
+ kfprog.filter = (struct sock_filter *)A(uptr);
+ fsize = kfprog.len * sizeof(struct sock_filter);
+ kfilter = (struct sock_filter *)kmalloc(fsize, GFP_KERNEL);
+ if (kfilter == NULL)
+ return -ENOMEM;
+ if (copy_from_user(kfilter, kfprog.filter, fsize)) {
+ kfree(kfilter);
+ return -EFAULT;
+ }
+ kfprog.filter = kfilter;
+ old_fs = get_fs();
+ set_fs(KERNEL_DS);
+ ret = sys_setsockopt(fd, level, optname,
+ (char *)&kfprog, sizeof(kfprog));
+ set_fs(old_fs);
+ kfree(kfilter);
+ return ret;
+ }
+ return sys_setsockopt(fd, level, optname, optval, optlen);
+}
+
+
+
+
+#define MAX_SOCK_ADDR 128 /* 108 for Unix domain - 16 for IP, 16 for IPX, 24 for IPv6, about 80 for AX.25 */
+#define __CMSG32_NXTHDR(ctl, len, cmsg, cmsglen) __cmsg32_nxthdr((ctl),(len),(cmsg),(cmsglen))
+#define CMSG32_NXTHDR(mhdr, cmsg, cmsglen) cmsg32_nxthdr((mhdr), (cmsg), (cmsglen))
+
+#define CMSG32_ALIGN(len) ( ((len)+sizeof(int)-1) & ~(sizeof(int)-1) )
+
+#define CMSG32_DATA(cmsg) ((void *)((char *)(cmsg) + CMSG32_ALIGN(sizeof(struct cmsghdr32))))
+#define CMSG32_SPACE(len) (CMSG32_ALIGN(sizeof(struct cmsghdr32)) + CMSG32_ALIGN(len))
+#define CMSG32_LEN(len) (CMSG32_ALIGN(sizeof(struct cmsghdr32)) + (len))
+#define __CMSG32_FIRSTHDR(ctl,len) ((len) >= sizeof(struct cmsghdr32) ? \
+ (struct cmsghdr32 *)(ctl) : \
+ (struct cmsghdr32 *)NULL)
+#define CMSG32_FIRSTHDR(msg) __CMSG32_FIRSTHDR((msg)->msg_control, (msg)->msg_controllen)
+
+struct msghdr32
+{
+ u32 msg_name;
+ int msg_namelen;
+ u32 msg_iov;
+ __kernel_size_t32 msg_iovlen;
+ u32 msg_control;
+ __kernel_size_t32 msg_controllen;
+ unsigned msg_flags;
+};
+
+struct cmsghdr32
+{
+ __kernel_size_t32 cmsg_len;
+ int cmsg_level;
+ int cmsg_type;
+};
+
+__inline__ struct cmsghdr32 *__cmsg32_nxthdr(void *__ctl, __kernel_size_t __size,
+ struct cmsghdr32 *__cmsg, int __cmsg_len)
+{
+ struct cmsghdr32 * __ptr;
+
+ __ptr = (struct cmsghdr32 *)(((unsigned char *) __cmsg) +
+ CMSG32_ALIGN(__cmsg_len));
+ if ((unsigned long)((char*)(__ptr+1) - (char *) __ctl) > __size)
+ return NULL;
+
+ return __ptr;
+}
+
+__inline__ struct cmsghdr32 *cmsg32_nxthdr (struct msghdr *__msg,
+ struct cmsghdr32 *__cmsg,
+ int __cmsg_len)
+{
+ return __cmsg32_nxthdr(__msg->msg_control, __msg->msg_controllen,
+ __cmsg, __cmsg_len);
+}
+
+extern __inline__ struct socket *socki_lookup(struct inode *inode)
+{
+ return &inode->u.socket_i;
+}
+
+extern __inline__ struct socket *sockfd_lookup(int fd, int *err)
+{
+ struct file *file;
+ struct inode *inode;
+
+ if (!(file = fget(fd)))
+ {
+ *err = -EBADF;
+ return NULL;
+ }
+
+ inode = file->f_dentry->d_inode;
+ if (!inode || !inode->i_sock || !socki_lookup(inode))
+ {
+ *err = -ENOTSOCK;
+ fput(file);
+ return NULL;
+ }
+
+ return socki_lookup(inode);
+}
+
+extern __inline__ void sockfd_put(struct socket *sock)
+{
+ fput(sock->file);
+}
+
+static inline int msghdr_from_user32_to_kern(struct msghdr *kmsg, struct msghdr32 *umsg)
+{
+ u32 tmp1, tmp2, tmp3;
+ int err;
+
+ err = get_user(tmp1, &umsg->msg_name);
+ err |= __get_user(tmp2, &umsg->msg_iov);
+ err |= __get_user(tmp3, &umsg->msg_control);
+ if (err)
+ return -EFAULT;
+
+ kmsg->msg_name = (void *)A(tmp1);
+ kmsg->msg_iov = (struct iovec *)A(tmp2);
+ kmsg->msg_control = (void *)A(tmp3);
+
+ err = get_user(kmsg->msg_namelen, &umsg->msg_namelen);
+ err |= get_user(kmsg->msg_iovlen, &umsg->msg_iovlen);
+ err |= get_user(kmsg->msg_controllen, &umsg->msg_controllen);
+ err |= get_user(kmsg->msg_flags, &umsg->msg_flags);
+
+ return err;
+}
+
+static inline int iov_from_user32_to_kern(struct iovec *kiov,
+ struct iovec32 *uiov32,
+ int niov)
+{
+ int tot_len = 0;
+
+ while(niov > 0) {
+ u32 len, buf;
+
+ if(get_user(len, &uiov32->iov_len) ||
+ get_user(buf, &uiov32->iov_base)) {
+ tot_len = -EFAULT;
+ break;
+ }
+ tot_len += len;
+ kiov->iov_base = (void *)A(buf);
+ kiov->iov_len = (__kernel_size_t) len;
+ uiov32++;
+ kiov++;
+ niov--;
+ }
+ return tot_len;
+}
+
+/* I've named the args so it is easy to tell whose space the pointers are in. */
+static int verify_iovec32(struct msghdr *kern_msg, struct iovec *kern_iov,
+ char *kern_address, int mode)
+{
+ int tot_len;
+
+ if(kern_msg->msg_namelen) {
+ if(mode==VERIFY_READ) {
+ int err = move_addr_to_kernel(kern_msg->msg_name,
+ kern_msg->msg_namelen,
+ kern_address);
+ if(err < 0)
+ return err;
+ }
+ kern_msg->msg_name = kern_address;
+ } else
+ kern_msg->msg_name = NULL;
+
+ if(kern_msg->msg_iovlen > UIO_FASTIOV) {
+ kern_iov = kmalloc(kern_msg->msg_iovlen * sizeof(struct iovec),
+ GFP_KERNEL);
+ if(!kern_iov)
+ return -ENOMEM;
+ }
+
+ tot_len = iov_from_user32_to_kern(kern_iov,
+ (struct iovec32 *)kern_msg->msg_iov,
+ kern_msg->msg_iovlen);
+ if(tot_len >= 0)
+ kern_msg->msg_iov = kern_iov;
+ else if(kern_msg->msg_iovlen > UIO_FASTIOV)
+ kfree(kern_iov);
+
+ return tot_len;
+}
+
+/* There is a lot of hair here because the alignment rules (and
+ * thus placement) of cmsg headers and length are different for
+ * 32-bit apps. -DaveM
+ */
+static int cmsghdr_from_user32_to_kern(struct msghdr *kmsg,
+ unsigned char *stackbuf, int stackbuf_size)
+{
+ struct cmsghdr32 *ucmsg;
+ struct cmsghdr *kcmsg, *kcmsg_base;
+ __kernel_size_t32 ucmlen;
+ __kernel_size_t kcmlen, tmp;
+
+ kcmlen = 0;
+ kcmsg_base = kcmsg = (struct cmsghdr *)stackbuf;
+ ucmsg = CMSG32_FIRSTHDR(kmsg);
+ while(ucmsg != NULL) {
+ if(get_user(ucmlen, &ucmsg->cmsg_len))
+ return -EFAULT;
+
+ /* Catch bogons. */
+ if(CMSG32_ALIGN(ucmlen) <
+ CMSG32_ALIGN(sizeof(struct cmsghdr32)))
+ return -EINVAL;
+ if((unsigned long)(((char *)ucmsg - (char *)kmsg->msg_control)
+ + ucmlen) > kmsg->msg_controllen)
+ return -EINVAL;
+
+ tmp = ((ucmlen - CMSG32_ALIGN(sizeof(*ucmsg))) +
+ CMSG_ALIGN(sizeof(struct cmsghdr)));
+ kcmlen += tmp;
+ ucmsg = CMSG32_NXTHDR(kmsg, ucmsg, ucmlen);
+ }
+ if (kcmlen == 0)
+ return -EINVAL;
+
+ /* The kcmlen holds the 64-bit version of the control length.
+ * It may not be modified as we do not stick it into the kmsg
+ * until we have successfully copied over all of the data
+ * from the user.
+ */
+ if (kcmlen > stackbuf_size)
+ kcmsg_base = kcmsg = kmalloc(kcmlen, GFP_KERNEL);
+ if (kcmsg == NULL)
+ return -ENOBUFS;
+
+ /* Now copy them over neatly. */
+ memset(kcmsg, 0, kcmlen);
+ ucmsg = CMSG32_FIRSTHDR(kmsg);
+ while (ucmsg != NULL) {
+ __get_user(ucmlen, &ucmsg->cmsg_len);
+ tmp = ((ucmlen - CMSG32_ALIGN(sizeof(*ucmsg))) +
+ CMSG_ALIGN(sizeof(struct cmsghdr)));
+ kcmsg->cmsg_len = tmp;
+ __get_user(kcmsg->cmsg_level, &ucmsg->cmsg_level);
+ __get_user(kcmsg->cmsg_type, &ucmsg->cmsg_type);
+
+ /* Copy over the data. */
+ if(copy_from_user(CMSG_DATA(kcmsg),
+ CMSG32_DATA(ucmsg),
+ (ucmlen - CMSG32_ALIGN(sizeof(*ucmsg)))))
+ goto out_free_efault;
+
+ /* Advance. */
+ kcmsg = (struct cmsghdr *)((char *)kcmsg + CMSG_ALIGN(tmp));
+ ucmsg = CMSG32_NXTHDR(kmsg, ucmsg, ucmlen);
+ }
+
+ /* Ok, looks like we made it. Hook it up and return success. */
+ kmsg->msg_control = kcmsg_base;
+ kmsg->msg_controllen = kcmlen;
+ return 0;
+
+out_free_efault:
+ if(kcmsg_base != (struct cmsghdr *)stackbuf)
+ kfree(kcmsg_base);
+ return -EFAULT;
+}
+
+asmlinkage long sys32_sendmsg(int fd, struct msghdr32* user_msg, unsigned int user_flags)
+{
+ struct socket *sock;
+ char address[MAX_SOCK_ADDR];
+ struct iovec iov[UIO_FASTIOV];
+ unsigned char ctl[sizeof(struct cmsghdr) + 20];
+ unsigned char *ctl_buf = ctl;
+ struct msghdr kern_msg;
+ int err, total_len;
+
+ PPCDBG(PPCDBG_SYS32, "sys32_sendmsg - entered - fd=%x, user_msg@=%p, user_flags=%x \n", fd, user_msg, user_flags);
+
+ if(msghdr_from_user32_to_kern(&kern_msg, user_msg))
+ return -EFAULT;
+ if(kern_msg.msg_iovlen > UIO_MAXIOV)
+ return -EINVAL;
+ err = verify_iovec32(&kern_msg, iov, address, VERIFY_READ);
+ if (err < 0)
+ goto out;
+ total_len = err;
+
+ if(kern_msg.msg_controllen) {
+ err = cmsghdr_from_user32_to_kern(&kern_msg, ctl, sizeof(ctl));
+ if(err)
+ goto out_freeiov;
+ ctl_buf = kern_msg.msg_control;
+ }
+ kern_msg.msg_flags = user_flags;
+
+ sock = sockfd_lookup(fd, &err);
+ if (sock != NULL) {
+ if (sock->file->f_flags & O_NONBLOCK)
+ kern_msg.msg_flags |= MSG_DONTWAIT;
+ err = sock_sendmsg(sock, &kern_msg, total_len);
+ sockfd_put(sock);
+ }
+
+ /* N.B. Use kfree here, as kern_msg.msg_controllen might change? */
+ if(ctl_buf != ctl)
+ kfree(ctl_buf);
+out_freeiov:
+ if(kern_msg.msg_iov != iov)
+ kfree(kern_msg.msg_iov);
+out:
+
+ PPCDBG(PPCDBG_SYS32, "sys32_sendmsg - exited w/ %lx \n", err);
+ return err;
+}
+
+static void put_cmsg32(struct msghdr *kmsg, int level, int type,
+ int len, void *data)
+{
+ struct cmsghdr32 *cm = (struct cmsghdr32 *) kmsg->msg_control;
+ struct cmsghdr32 cmhdr;
+ int cmlen = CMSG32_LEN(len);
+
+ if (cm == NULL || kmsg->msg_controllen < sizeof(*cm)) {
+ kmsg->msg_flags |= MSG_CTRUNC;
+ return;
+ }
+
+ if (kmsg->msg_controllen < cmlen) {
+ kmsg->msg_flags |= MSG_CTRUNC;
+ cmlen = kmsg->msg_controllen;
+ }
+ cmhdr.cmsg_level = level;
+ cmhdr.cmsg_type = type;
+ cmhdr.cmsg_len = cmlen;
+
+ if (copy_to_user(cm, &cmhdr, sizeof cmhdr))
+ return;
+ if (copy_to_user(CMSG32_DATA(cm), data, cmlen - sizeof(struct cmsghdr32)))
+ return;
+ cmlen = CMSG32_SPACE(len);
+ kmsg->msg_control += cmlen;
+ kmsg->msg_controllen -= cmlen;
+}
+
+
+static void scm_detach_fds32(struct msghdr *kmsg, struct scm_cookie *scm)
+{
+ struct cmsghdr32 *cm = (struct cmsghdr32 *) kmsg->msg_control;
+ int fdmax = (kmsg->msg_controllen - sizeof(struct cmsghdr32)) / sizeof(int);
+ int fdnum = scm->fp->count;
+ struct file **fp = scm->fp->fp;
+ int *cmfptr;
+ int err = 0, i;
+
+ if (fdnum < fdmax)
+ fdmax = fdnum;
+
+ for (i = 0, cmfptr = (int *) CMSG32_DATA(cm); i < fdmax; i++, cmfptr++) {
+ int new_fd;
+ err = get_unused_fd();
+ if (err < 0)
+ break;
+ new_fd = err;
+ err = put_user(new_fd, cmfptr);
+ if (err) {
+ put_unused_fd(new_fd);
+ break;
+ }
+ /* Bump the usage count and install the file. */
+ get_file(fp[i]);
+ fd_install(new_fd, fp[i]);
+ }
+
+ if (i > 0) {
+ int cmlen = CMSG32_LEN(i * sizeof(int));
+ if (!err)
+ err = put_user(SOL_SOCKET, &cm->cmsg_level);
+ if (!err)
+ err = put_user(SCM_RIGHTS, &cm->cmsg_type);
+ if (!err)
+ err = put_user(cmlen, &cm->cmsg_len);
+ if (!err) {
+ cmlen = CMSG32_SPACE(i * sizeof(int));
+ kmsg->msg_control += cmlen;
+ kmsg->msg_controllen -= cmlen;
+ }
+ }
+ if (i < fdnum)
+ kmsg->msg_flags |= MSG_CTRUNC;
+
+ /*
+ * All of the files that fit in the message have had their
+ * usage counts incremented, so we just free the list.
+ */
+ __scm_destroy(scm);
+}
+
+/* In these cases we (currently) can just copy to data over verbatim
+ * because all CMSGs created by the kernel have well defined types which
+ * have the same layout in both the 32-bit and 64-bit API. One must add
+ * some special cased conversions here if we start sending control messages
+ * with incompatible types.
+ *
+ * SCM_RIGHTS and SCM_CREDENTIALS are done by hand in recvmsg32 right after
+ * we do our work. The remaining cases are:
+ *
+ * SOL_IP IP_PKTINFO struct in_pktinfo 32-bit clean
+ * IP_TTL int 32-bit clean
+ * IP_TOS __u8 32-bit clean
+ * IP_RECVOPTS variable length 32-bit clean
+ * IP_RETOPTS variable length 32-bit clean
+ * (these last two are clean because the types are defined
+ * by the IPv4 protocol)
+ * IP_RECVERR struct sock_extended_err +
+ * struct sockaddr_in 32-bit clean
+ * SOL_IPV6 IPV6_RECVERR struct sock_extended_err +
+ * struct sockaddr_in6 32-bit clean
+ * IPV6_PKTINFO struct in6_pktinfo 32-bit clean
+ * IPV6_HOPLIMIT int 32-bit clean
+ * IPV6_FLOWINFO u32 32-bit clean
+ * IPV6_HOPOPTS ipv6 hop exthdr 32-bit clean
+ * IPV6_DSTOPTS ipv6 dst exthdr(s) 32-bit clean
+ * IPV6_RTHDR ipv6 routing exthdr 32-bit clean
+ * IPV6_AUTHHDR ipv6 auth exthdr 32-bit clean
+ */
+static void cmsg32_recvmsg_fixup(struct msghdr *kmsg, unsigned long orig_cmsg_uptr)
+{
+ unsigned char *workbuf, *wp;
+ unsigned long bufsz, space_avail;
+ struct cmsghdr *ucmsg;
+
+ bufsz = ((unsigned long)kmsg->msg_control) - orig_cmsg_uptr;
+ space_avail = kmsg->msg_controllen + bufsz;
+ wp = workbuf = kmalloc(bufsz, GFP_KERNEL);
+ if(workbuf == NULL)
+ goto fail;
+
+ /* To make this more sane we assume the kernel sends back properly
+ * formatted control messages. Because of how the kernel will truncate
+ * the cmsg_len for MSG_TRUNC cases, we need not check that case either.
+ */
+ ucmsg = (struct cmsghdr *) orig_cmsg_uptr;
+ while(((unsigned long)ucmsg) <=
+ (((unsigned long)kmsg->msg_control) - sizeof(struct cmsghdr))) {
+ struct cmsghdr32 *kcmsg32 = (struct cmsghdr32 *) wp;
+ int clen64, clen32;
+
+ /* UCMSG is the 64-bit format CMSG entry in user-space.
+ * KCMSG32 is within the kernel space temporary buffer
+ * we use to convert into a 32-bit style CMSG.
+ */
+ __get_user(kcmsg32->cmsg_len, &ucmsg->cmsg_len);
+ __get_user(kcmsg32->cmsg_level, &ucmsg->cmsg_level);
+ __get_user(kcmsg32->cmsg_type, &ucmsg->cmsg_type);
+
+ clen64 = kcmsg32->cmsg_len;
+ copy_from_user(CMSG32_DATA(kcmsg32), CMSG_DATA(ucmsg),
+ clen64 - CMSG_ALIGN(sizeof(*ucmsg)));
+ clen32 = ((clen64 - CMSG_ALIGN(sizeof(*ucmsg))) +
+ CMSG32_ALIGN(sizeof(struct cmsghdr32)));
+ kcmsg32->cmsg_len = clen32;
+
+ switch (kcmsg32->cmsg_type) {
+ /*
+ * The timestamp type's data needs to be converted
+ * from 64-bit time values to 32-bit time values
+ */
+ case SO_TIMESTAMP: {
+ __kernel_time_t32* ptr_time32 = CMSG32_DATA(kcmsg32);
+ __kernel_time_t* ptr_time = CMSG_DATA(ucmsg);
+ *ptr_time32 = *ptr_time;
+ *(ptr_time32+1) = *(ptr_time+1);
+ kcmsg32->cmsg_len -= 2*(sizeof(__kernel_time_t) -
+ sizeof(__kernel_time_t32));
+ }
+ default:;
+ }
+
+ ucmsg = (struct cmsghdr *) (((char *)ucmsg) + CMSG_ALIGN(clen64));
+ wp = (((char *)kcmsg32) + CMSG32_ALIGN(kcmsg32->cmsg_len));
+ }
+
+ /* Copy back fixed up data, and adjust pointers. */
+ bufsz = (wp - workbuf);
+ copy_to_user((void *)orig_cmsg_uptr, workbuf, bufsz);
+
+ kmsg->msg_control = (struct cmsghdr *)
+ (((char *)orig_cmsg_uptr) + bufsz);
+ kmsg->msg_controllen = space_avail - bufsz;
+
+ kfree(workbuf);
+ return;
+
+fail:
+ /* If we leave the 64-bit format CMSG chunks in there,
+ * the application could get confused and crash. So to
+ * ensure greater recovery, we report no CMSGs.
+ */
+ kmsg->msg_controllen += bufsz;
+ kmsg->msg_control = (void *) orig_cmsg_uptr;
+}
+
+asmlinkage long sys32_recvmsg(int fd, struct msghdr32* user_msg, unsigned int user_flags)
+{
+ struct iovec iovstack[UIO_FASTIOV];
+ struct msghdr kern_msg;
+ char addr[MAX_SOCK_ADDR];
+ struct socket *sock;
+ struct iovec *iov = iovstack;
+ struct sockaddr *uaddr;
+ int *uaddr_len;
+ unsigned long cmsg_ptr;
+ int err, total_len, len = 0;
+
+ PPCDBG(PPCDBG_SYS32, "sys32_recvmsg - entered - fd=%x, user_msg@=%p, user_flags=%x \n", fd, user_msg, user_flags);
+
+ if(msghdr_from_user32_to_kern(&kern_msg, user_msg))
+ return -EFAULT;
+ if(kern_msg.msg_iovlen > UIO_MAXIOV)
+ return -EINVAL;
+
+ uaddr = kern_msg.msg_name;
+ uaddr_len = &user_msg->msg_namelen;
+ err = verify_iovec32(&kern_msg, iov, addr, VERIFY_WRITE);
+ if (err < 0)
+ goto out;
+ total_len = err;
+
+ cmsg_ptr = (unsigned long) kern_msg.msg_control;
+ kern_msg.msg_flags = 0;
+
+ sock = sockfd_lookup(fd, &err);
+ if (sock != NULL) {
+ struct scm_cookie scm;
+
+ if (sock->file->f_flags & O_NONBLOCK)
+ user_flags |= MSG_DONTWAIT;
+ memset(&scm, 0, sizeof(scm));
+ err = sock->ops->recvmsg(sock, &kern_msg, total_len,
+ user_flags, &scm);
+ if(err >= 0) {
+ len = err;
+ if(!kern_msg.msg_control) {
+ if(sock->passcred || scm.fp)
+ kern_msg.msg_flags |= MSG_CTRUNC;
+ if(scm.fp)
+ __scm_destroy(&scm);
+ } else {
+ /* If recvmsg processing itself placed some
+ * control messages into user space, it's is
+ * using 64-bit CMSG processing, so we need
+ * to fix it up before we tack on more stuff.
+ */
+ if((unsigned long) kern_msg.msg_control != cmsg_ptr)
+ cmsg32_recvmsg_fixup(&kern_msg, cmsg_ptr);
+
+ /* Wheee... */
+ if(sock->passcred)
+ put_cmsg32(&kern_msg,
+ SOL_SOCKET, SCM_CREDENTIALS,
+ sizeof(scm.creds), &scm.creds);
+ if(scm.fp != NULL)
+ scm_detach_fds32(&kern_msg, &scm);
+ }
+ }
+ sockfd_put(sock);
+ }
+
+ if (uaddr != NULL && err >= 0 && kern_msg.msg_namelen)
+ err = move_addr_to_user(addr, kern_msg.msg_namelen, uaddr, uaddr_len);
+ if(cmsg_ptr != 0 && err >= 0) {
+ unsigned long ucmsg_ptr = ((unsigned long)kern_msg.msg_control);
+ __kernel_size_t32 uclen = (__kernel_size_t32) (ucmsg_ptr - cmsg_ptr);
+ err |= __put_user(uclen, &user_msg->msg_controllen);
+ }
+ if(err >= 0)
+ err = __put_user(kern_msg.msg_flags, &user_msg->msg_flags);
+ if(kern_msg.msg_iov != iov)
+ kfree(kern_msg.msg_iov);
+out:
+ if(err < 0)
+ return err;
+
+ PPCDBG(PPCDBG_SYS32, "sys32_recvmsg - exited w/ %lx \n", len);
+ return len;
+}
+
+/*
+ * count32() counts the number of arguments/envelopes
+ */
+static int count32(u32 * argv, int max)
+{
+ int i = 0;
+
+ if (argv != NULL) {
+ for (;;) {
+ u32 p; int error;
+
+ error = get_user(p,argv);
+ if (error)
+ return error;
+ if (!p)
+ break;
+ argv++;
+ if (++i > max)
+ return -E2BIG;
+ }
+ }
+ return i;
+}
+
+/*
+ * 'copy_string32()' copies argument/envelope strings from user
+ * memory to free pages in kernel mem. These are in a format ready
+ * to be put directly into the top of new user memory.
+ */
+static int copy_strings32(int argc, u32 * argv, struct linux_binprm *bprm)
+{
+ while (argc-- > 0) {
+ u32 str;
+ int len;
+ unsigned long pos;
+
+ if (get_user(str, argv + argc) ||
+ !str ||
+ !(len = strnlen_user((char *)A(str), bprm->p)))
+ return -EFAULT;
+
+ if (bprm->p < len)
+ return -E2BIG;
+
+ bprm->p -= len;
+
+ pos = bprm->p;
+ while (len) {
+ char *kaddr;
+ struct page *page;
+ int offset, bytes_to_copy, new, err;
+
+ offset = pos % PAGE_SIZE;
+ page = bprm->page[pos / PAGE_SIZE];
+ new = 0;
+ if (!page) {
+ page = alloc_page(GFP_USER);
+ bprm->page[pos / PAGE_SIZE] = page;
+ if (!page)
+ return -ENOMEM;
+ new = 1;
+ }
+ kaddr = (char *)kmap(page);
+
+ if (new && offset)
+ memset(kaddr, 0, offset);
+ bytes_to_copy = PAGE_SIZE - offset;
+ if (bytes_to_copy > len) {
+ bytes_to_copy = len;
+ if (new)
+ memset(kaddr+offset+len, 0,
+ PAGE_SIZE-offset-len);
+ }
+
+ err = copy_from_user(kaddr + offset, (char *)A(str),
+ bytes_to_copy);
+ flush_page_to_ram(page);
+ kunmap((unsigned long)kaddr);
+
+ if (err)
+ return -EFAULT;
+
+ pos += bytes_to_copy;
+ str += bytes_to_copy;
+ len -= bytes_to_copy;
+ }
+ }
+ return 0;
+}
+
+/*
+ * sys32_execve() executes a new program.
+ */
+static int do_execve32(char * filename, u32 * argv, u32 * envp, struct pt_regs * regs)
+{
+ struct linux_binprm bprm;
+ struct file * file;
+ int retval;
+ int i;
+
+ bprm.p = PAGE_SIZE*MAX_ARG_PAGES-sizeof(void *);
+ memset(bprm.page, 0, MAX_ARG_PAGES * sizeof(bprm.page[0]));
+
+ file = open_exec(filename);
+
+ retval = PTR_ERR(file);
+ if (IS_ERR(file))
+ return retval;
+
+ bprm.file = file;
+ bprm.filename = filename;
+ bprm.sh_bang = 0;
+ bprm.loader = 0;
+ bprm.exec = 0;
+ if ((bprm.argc = count32(argv, bprm.p / sizeof(u32))) < 0) {
+ allow_write_access(file);
+ fput(file);
+ return bprm.argc;
+ }
+ if ((bprm.envc = count32(envp, bprm.p / sizeof(u32))) < 0) {
+ allow_write_access(file);
+ fput(file);
+ return bprm.argc;
+ }
+
+ retval = prepare_binprm(&bprm);
+ if (retval < 0)
+ goto out;
+
+ retval = copy_strings_kernel(1, &bprm.filename, &bprm);
+ if (retval < 0)
+ goto out;
+
+ bprm.exec = bprm.p;
+ retval = copy_strings32(bprm.envc, envp, &bprm);
+ if (retval < 0)
+ goto out;
+
+ retval = copy_strings32(bprm.argc, argv, &bprm);
+ if (retval < 0)
+ goto out;
+
+ retval = search_binary_handler(&bprm, regs);
+ if (retval >= 0)
+ /* execve success */
+ return retval;
+
+out:
+ /* Something went wrong, return the inode and free the argument pages*/
+ allow_write_access(bprm.file);
+ if (bprm.file)
+ fput(bprm.file);
+
+ for (i=0 ; i<MAX_ARG_PAGES ; i++)
+ if (bprm.page[i])
+ __free_page(bprm.page[i]);
+
+ return retval;
+}
+
+asmlinkage long sys32_execve(unsigned long a0, unsigned long a1, unsigned long a2,
+ unsigned long a3, unsigned long a4, unsigned long a5,
+ struct pt_regs *regs)
+{
+ int error;
+ char * filename;
+
+ ifppcdebug(PPCDBG_SYS32) {
+ udbg_printf("sys32_execve - entered - pid=%ld, comm=%s \n", current->pid, current->comm);
+ //PPCDBG(PPCDBG_SYS32NI, " a0=%lx, a1=%lx, a2=%lx, a3=%lx, a4=%lx, a5=%lx, regs=%p \n", a0, a1, a2, a3, a4, a5, regs);
+ }
+
+ filename = getname((char *) a0);
+ error = PTR_ERR(filename);
+ if (IS_ERR(filename))
+ goto out;
+ if (regs->msr & MSR_FP)
+ giveup_fpu(current);
+
+ error = do_execve32(filename, (u32*) a1, (u32*) a2, regs);
+
+ if (error == 0)
+ current->ptrace &= ~PT_DTRACE;
+ putname(filename);
+
+out:
+ ifppcdebug(PPCDBG_SYS32) {
+ udbg_printf("sys32_execve - exited - returning %x - pid=%ld \n", error, current->pid);
+ //udbg_printf("sys32_execve - at exit - regs->gpr[1]=%lx, gpr[3]=%lx, gpr[4]=%lx, gpr[5]=%lx, gpr[6]=%lx \n", regs->gpr[1], regs->gpr[3], regs->gpr[4], regs->gpr[5], regs->gpr[6]);
+ }
+ return error;
+}
+
+/* Set up a thread for executing a new program. */
+void start_thread32(struct pt_regs* regs, unsigned long nip, unsigned long sp)
+{
+ set_fs(USER_DS);
+ memset(regs->gpr, 0, sizeof(regs->gpr));
+ memset(®s->ctr, 0, 4 * sizeof(regs->ctr));
+ regs->nip = nip;
+ regs->gpr[1] = sp;
+ regs->msr = MSR_USER32;
+ if (last_task_used_math == current)
+ last_task_used_math = 0;
+ current->thread.fpscr = 0;
+}
+
+extern asmlinkage int sys_prctl(int option, unsigned long arg2, unsigned long arg3,
+ unsigned long arg4, unsigned long arg5);
+
+/* Note: it is necessary to treat option as an unsigned int,
+ * with the corresponding cast to a signed int to insure that the
+ * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
+ * and the register representation of a signed int (msr in 64-bit mode) is performed.
+ */
+asmlinkage long sys32_prctl(u32 option, u32 arg2, u32 arg3, u32 arg4, u32 arg5)
+{
+ PPCDBG(PPCDBG_SYS32, "sys32_prctl - running - pid=%ld current=%lx comm=%s\n", current->pid, current, current->comm);
+
+ return sys_prctl((int)option,
+ (unsigned long) arg2,
+ (unsigned long) arg3,
+ (unsigned long) arg4,
+ (unsigned long) arg5);
+}
+
+extern asmlinkage int sys_sched_rr_get_interval(pid_t pid, struct timespec *interval);
+
+/* Note: it is necessary to treat pid as an unsigned int,
+ * with the corresponding cast to a signed int to insure that the
+ * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
+ * and the register representation of a signed int (msr in 64-bit mode) is performed.
+ */
+asmlinkage int sys32_sched_rr_get_interval(u32 pid, struct timespec32 *interval)
+{
+ struct timespec t;
+ int ret;
+ mm_segment_t old_fs = get_fs ();
+
+ PPCDBG(PPCDBG_SYS32, "sys32_sched_rr_get_interval - entered - pid=%ld current=%lx comm=%s \n", current->pid, current, current->comm);
+
+ set_fs (KERNEL_DS);
+ ret = sys_sched_rr_get_interval((int)pid, &t);
+ set_fs (old_fs);
+ if (put_user (t.tv_sec, &interval->tv_sec) ||
+ __put_user (t.tv_nsec, &interval->tv_nsec))
+ return -EFAULT;
+
+ PPCDBG(PPCDBG_SYS32, "sys32_sched_rr_get_interval - exited - pid=%ld current=%lx comm=%s \n", current->pid, current, current->comm);
+ return ret;
+}
+
+extern asmlinkage int sys_pciconfig_read(unsigned long bus, unsigned long dfn, unsigned long off,
+ unsigned long len, unsigned char *buf);
+
+asmlinkage int sys32_pciconfig_read(u32 bus, u32 dfn, u32 off, u32 len, u32 ubuf)
+{
+
+ PPCDBG(PPCDBG_SYS32, "sys32_pciconfig_read - running - pid=%ld current=%lx comm=%s\n", current->pid, current, current->comm);
+
+ return sys_pciconfig_read((unsigned long) bus,
+ (unsigned long) dfn,
+ (unsigned long) off,
+ (unsigned long) len,
+ (unsigned char *)AA(ubuf));
+}
+
+
+
+
+extern asmlinkage int sys_pciconfig_write(unsigned long bus, unsigned long dfn, unsigned long off,
+ unsigned long len, unsigned char *buf);
+
+asmlinkage int sys32_pciconfig_write(u32 bus, u32 dfn, u32 off, u32 len, u32 ubuf)
+{
+
+ PPCDBG(PPCDBG_SYS32, "sys32_pciconfig_write - running - pid=%ld current=%lx comm=%s \n", current->pid, current, current->comm);
+
+ return sys_pciconfig_write((unsigned long) bus,
+ (unsigned long) dfn,
+ (unsigned long) off,
+ (unsigned long) len,
+ (unsigned char *)AA(ubuf));
+}
+
+extern asmlinkage int sys_newuname(struct new_utsname * name);
+
+asmlinkage int ppc64_newuname(struct new_utsname * name)
+{
+ int errno = sys_newuname(name);
+
+ if (current->personality == PER_LINUX32 && !errno) {
+ if(copy_to_user(name->machine, "ppc\0\0", 8)) {
+ errno = -EFAULT;
+ }
+ }
+ return errno;
+}
+
+extern asmlinkage long sys_personality(unsigned long);
+
+asmlinkage int sys32_personality(unsigned long personality)
+{
+ int ret;
+ if (current->personality == PER_LINUX32 && personality == PER_LINUX)
+ personality = PER_LINUX32;
+ ret = sys_personality(personality);
+ if (ret == PER_LINUX32)
+ ret = PER_LINUX;
+ return ret;
+}
+
+
+
+extern asmlinkage long sys_access(const char * filename, int mode);
+
+/* Note: it is necessary to treat mode as an unsigned int,
+ * with the corresponding cast to a signed int to insure that the
+ * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
+ * and the register representation of a signed int (msr in 64-bit mode) is performed.
+ */
+asmlinkage long sys32_access(const char * filename, u32 mode)
+{
+ return sys_access(filename, (int)mode);
+}
+
+
+extern asmlinkage int sys_clone(int p1, int p2, int p3, int p4, int p5, int p6, struct pt_regs *regs);
+
+/* Note: it is necessary to treat p1, p2, p3, p4, p5, p7, and regs as unsigned ints,
+ * with the corresponding cast to a signed int to insure that the
+ * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
+ * and the register representation of a signed int (msr in 64-bit mode) is performed.
+ */
+asmlinkage int sys32_clone(u32 p1, u32 p2, u32 p3, u32 p4, u32 p5, u32 p6, struct pt_regs *regs)
+{
+ return sys_clone((int)p1, (int)p2, (int)p3, (int)p4, (int)p5, (int)p6, regs);
+}
+
+
+extern asmlinkage long sys_creat(const char * pathname, int mode);
+
+/* Note: it is necessary to treat mode as an unsigned int,
+ * with the corresponding cast to a signed int to insure that the
+ * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
+ * and the register representation of a signed int (msr in 64-bit mode) is performed.
+ */
+asmlinkage long sys32_creat(const char * pathname, u32 mode)
+{
+ return sys_creat(pathname, (int)mode);
+}
+
+
+extern asmlinkage long sys_exit(int error_code);
+
+/* Note: it is necessary to treat error_code as an unsigned int,
+ * with the corresponding cast to a signed int to insure that the
+ * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
+ * and the register representation of a signed int (msr in 64-bit mode) is performed.
+ */
+asmlinkage long sys32_exit(u32 error_code)
+{
+ return sys_exit((int)error_code);
+}
+
+
+extern asmlinkage long sys_wait4(pid_t pid, unsigned int * stat_addr, int options, struct rusage * ru);
+
+/* Note: it is necessary to treat pid and options as unsigned ints,
+ * with the corresponding cast to a signed int to insure that the
+ * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
+ * and the register representation of a signed int (msr in 64-bit mode) is performed.
+ */
+asmlinkage long sys32_wait4(u32 pid, unsigned int * stat_addr, u32 options, struct rusage * ru)
+{
+ PPCDBG(PPCDBG_SYS32, "sys32_wait4 - running - pid=%ld current=%lx comm=%s \n", current->pid, current, current->comm);
+
+ if (!ru)
+ return sys_wait4((int)pid, stat_addr, options, NULL);
+ else {
+ struct rusage r;
+ int ret;
+ unsigned int status;
+ mm_segment_t old_fs = get_fs();
+
+ set_fs (KERNEL_DS);
+ ret = sys_wait4((int)pid, stat_addr ? &status : NULL, options, &r);
+ set_fs (old_fs);
+ if (put_rusage ((struct rusage32 *)ru, &r)) return -EFAULT;
+ if (stat_addr && put_user (status, stat_addr))
+ return -EFAULT;
+ return ret;
+ }
+
+}
+
+
+extern asmlinkage long sys_waitpid(pid_t pid, unsigned int * stat_addr, int options);
+
+/* Note: it is necessary to treat pid and options as unsigned ints,
+ * with the corresponding cast to a signed int to insure that the
+ * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
+ * and the register representation of a signed int (msr in 64-bit mode) is performed.
+ */
+asmlinkage long sys32_waitpid(u32 pid, unsigned int * stat_addr, u32 options)
+{
+ return sys_waitpid((int)pid, stat_addr, (int)options);
+}
+
+
+extern asmlinkage int sys_fork(int p1, int p2, int p3, int p4, int p5, int p6, struct pt_regs *regs);
+
+/* Note: it is necessary to treat p1, p2, p3, p4, p5, and p6 as unsigned ints,
+ * with the corresponding cast to a signed int to insure that the
+ * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
+ * and the register representation of a signed int (msr in 64-bit mode) is performed.
+ */
+asmlinkage int sys32_fork(u32 p1, u32 p2, u32 p3, u32 p4, u32 p5, u32 p6, struct pt_regs *regs)
+{
+ return sys_fork((int)p1, (int)p2, (int)p3, (int)p4, (int)p5, (int)p6, regs);
+}
+
+
+extern asmlinkage long sys_getgroups(int gidsetsize, gid_t *grouplist);
+
+/* Note: it is necessary to treat gidsetsize as an unsigned int,
+ * with the corresponding cast to a signed int to insure that the
+ * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
+ * and the register representation of a signed int (msr in 64-bit mode) is performed.
+ */
+asmlinkage long sys32_getgroups(u32 gidsetsize, gid_t *grouplist)
+{
+ return sys_getgroups((int)gidsetsize, grouplist);
+}
+
+
+extern asmlinkage long sys_getpgid(pid_t pid);
+
+/* Note: it is necessary to treat pid as an unsigned int,
+ * with the corresponding cast to a signed int to insure that the
+ * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
+ * and the register representation of a signed int (msr in 64-bit mode) is performed.
+ */
+asmlinkage long sys32_getpgid(u32 pid)
+{
+ return sys_getpgid((int)pid);
+}
+
+
+extern asmlinkage long sys_getpriority(int which, int who);
+
+/* Note: it is necessary to treat which and who as unsigned ints,
+ * with the corresponding cast to a signed int to insure that the
+ * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
+ * and the register representation of a signed int (msr in 64-bit mode) is performed.
+ */
+asmlinkage long sys32_getpriority(u32 which, u32 who)
+{
+ return sys_getpriority((int)which, (int)who);
+}
+
+
+extern asmlinkage long sys_getsid(pid_t pid);
+
+/* Note: it is necessary to treat pid as an unsigned int,
+ * with the corresponding cast to a signed int to insure that the
+ * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
+ * and the register representation of a signed int (msr in 64-bit mode) is performed.
+ */
+asmlinkage long sys32_getsid(u32 pid)
+{
+ return sys_getsid((int)pid);
+}
+
+
+extern asmlinkage long sys_ioperm(unsigned long from, unsigned long num, int on);
+
+/* Note: it is necessary to treat on as an unsigned int,
+ * with the corresponding cast to a signed int to insure that the
+ * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
+ * and the register representation of a signed int (msr in 64-bit mode) is performed.
+ */
+asmlinkage long sys32_ioperm(unsigned long from, unsigned long num, u32 on)
+{
+ return sys_ioperm(from, num, (int)on);
+}
+
+
+extern asmlinkage int sys_iopl(int a1, int a2, int a3, int a4);
+
+/* Note: it is necessary to treat a1, a2, a3, and a4 as unsigned ints,
+ * with the corresponding cast to a signed int to insure that the
+ * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
+ * and the register representation of a signed int (msr in 64-bit mode) is performed.
+ */
+asmlinkage int sys32_iopl(u32 a1, u32 a2, u32 a3, u32 a4)
+{
+ return sys_iopl((int)a1, (int)a2, (int)a3, (int)a4);
+}
+
+
+extern asmlinkage long sys_kill(int pid, int sig);
+
+/* Note: it is necessary to treat pid and sig as unsigned ints,
+ * with the corresponding cast to a signed int to insure that the
+ * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
+ * and the register representation of a signed int (msr in 64-bit mode) is performed.
+ */
+asmlinkage long sys32_kill(u32 pid, u32 sig)
+{
+ return sys_kill((int)pid, (int)sig);
+}
+
+
+extern asmlinkage long sys_mkdir(const char * pathname, int mode);
+
+/* Note: it is necessary to treat mode as an unsigned int,
+ * with the corresponding cast to a signed int to insure that the
+ * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
+ * and the register representation of a signed int (msr in 64-bit mode) is performed.
+ */
+asmlinkage long sys32_mkdir(const char * pathname, u32 mode)
+{
+ return sys_mkdir(pathname, (int)mode);
+}
+
+
+extern asmlinkage long sys_mlockall(int flags);
+
+/* Note: it is necessary to treat flags as an unsigned int,
+ * with the corresponding cast to a signed int to insure that the
+ * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
+ * and the register representation of a signed int (msr in 64-bit mode) is performed.
+ */
+asmlinkage long sys32_mlockall(u32 flags)
+{
+ return sys_mlockall((int)flags);
+}
+
+
+extern asmlinkage int sys_modify_ldt(int a1, int a2, int a3, int a4);
+
+/* Note: it is necessary to treat a1, a2, a3, and a4 as unsigned ints,
+ * with the corresponding cast to a signed int to insure that the
+ * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
+ * and the register representation of a signed int (msr in 64-bit mode) is performed.
+ */
+asmlinkage int sys32_modify_ldt(u32 a1, u32 a2, u32 a3, u32 a4)
+{
+ return sys_modify_ldt((int)a1, (int)a2, (int)a3, (int)a4);
+}
+
+
+extern asmlinkage long sys_msync(unsigned long start, size_t len, int flags);
+
+/* Note: it is necessary to treat flags as an unsigned int,
+ * with the corresponding cast to a signed int to insure that the
+ * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
+ * and the register representation of a signed int (msr in 64-bit mode) is performed.
+ */
+asmlinkage long sys32_msync(unsigned long start, size_t len, u32 flags)
+{
+ return sys_msync(start, len, (int)flags);
+}
+
+
+extern asmlinkage long sys_nice(int increment);
+
+/* Note: it is necessary to treat increment as an unsigned int,
+ * with the corresponding cast to a signed int to insure that the
+ * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
+ * and the register representation of a signed int (msr in 64-bit mode) is performed.
+ */
+asmlinkage long sys32_nice(u32 increment)
+{
+ return sys_nice((int)increment);
+}
+
+
+extern asmlinkage long sys_open(const char * filename, int flags, int mode);
+
+/* Note: it is necessary to treat flags and mode as unsigned ints,
+ * with the corresponding cast to a signed int to insure that the
+ * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
+ * and the register representation of a signed int (msr in 64-bit mode) is performed.
+ */
+asmlinkage long sys32_open(const char * filename, int flags, int mode)
+{
+ return sys_open(filename, (int)flags, (int)mode);
+}
+
+
+extern asmlinkage long sys_readlink(const char * path, char * buf, int bufsiz);
+
+/* Note: it is necessary to treat bufsiz as an unsigned int,
+ * with the corresponding cast to a signed int to insure that the
+ * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
+ * and the register representation of a signed int (msr in 64-bit mode) is performed.
+ */
+asmlinkage long sys32_readlink(const char * path, char * buf, u32 bufsiz)
+{
+ return sys_readlink(path, buf, (int)bufsiz);
+}
+
+
+extern asmlinkage long sys_reboot(int magic1, int magic2, unsigned int cmd, void * arg);
+
+/* Note: it is necessary to treat magic1 and magic2 as unsigned ints,
+ * with the corresponding cast to a signed int to insure that the
+ * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
+ * and the register representation of a signed int (msr in 64-bit mode) is performed.
+ */
+asmlinkage long sys32_reboot(u32 magic1, u32 magic2, unsigned int cmd, void * arg)
+{
+ return sys_reboot((int)magic1, (int)magic2, cmd, arg);
+}
+
+
+extern asmlinkage long sys_sched_get_priority_max(int policy);
+
+/* Note: it is necessary to treat option as an unsigned int,
+ * with the corresponding cast to a signed int to insure that the
+ * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
+ * and the register representation of a signed int (msr in 64-bit mode) is performed.
+ */
+asmlinkage long sys32_sched_get_priority_max(u32 policy)
+{
+ return sys_sched_get_priority_max((int)policy);
+}
+
+
+extern asmlinkage long sys_sched_get_priority_min(int policy);
+
+/* Note: it is necessary to treat policy as an unsigned int,
+ * with the corresponding cast to a signed int to insure that the
+ * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
+ * and the register representation of a signed int (msr in 64-bit mode) is performed.
+ */
+asmlinkage long sys32_sched_get_priority_min(u32 policy)
+{
+ return sys_sched_get_priority_min((int)policy);
+}
+
+
+extern asmlinkage long sys_sched_getparam(pid_t pid, struct sched_param *param);
+
+/* Note: it is necessary to treat pid as an unsigned int,
+ * with the corresponding cast to a signed int to insure that the
+ * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
+ * and the register representation of a signed int (msr in 64-bit mode) is performed.
+ */
+asmlinkage long sys32_sched_getparam(u32 pid, struct sched_param *param)
+{
+ return sys_sched_getparam((int)pid, param);
+}
+
+
+extern asmlinkage long sys_sched_getscheduler(pid_t pid);
+
+/* Note: it is necessary to treat pid as an unsigned int,
+ * with the corresponding cast to a signed int to insure that the
+ * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
+ * and the register representation of a signed int (msr in 64-bit mode) is performed.
+ */
+asmlinkage long sys32_sched_getscheduler(u32 pid)
+{
+ return sys_sched_getscheduler((int)pid);
+}
+
+
+extern asmlinkage long sys_sched_setparam(pid_t pid, struct sched_param *param);
+
+/* Note: it is necessary to treat pid as an unsigned int,
+ * with the corresponding cast to a signed int to insure that the
+ * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
+ * and the register representation of a signed int (msr in 64-bit mode) is performed.
+ */
+asmlinkage long sys32_sched_setparam(u32 pid, struct sched_param *param)
+{
+ return sys_sched_setparam((int)pid, param);
+}
+
+
+extern asmlinkage long sys_sched_setscheduler(pid_t pid, int policy, struct sched_param *param);
+
+/* Note: it is necessary to treat pid and policy as unsigned ints,
+ * with the corresponding cast to a signed int to insure that the
+ * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
+ * and the register representation of a signed int (msr in 64-bit mode) is performed.
+ */
+asmlinkage long sys32_sched_setscheduler(u32 pid, u32 policy, struct sched_param *param)
+{
+ return sys_sched_setscheduler((int)pid, (int)policy, param);
+}
+
+
+extern asmlinkage long sys_setdomainname(char *name, int len);
+
+/* Note: it is necessary to treat len as an unsigned int,
+ * with the corresponding cast to a signed int to insure that the
+ * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
+ * and the register representation of a signed int (msr in 64-bit mode) is performed.
+ */
+asmlinkage long sys32_setdomainname(char *name, u32 len)
+{
+ return sys_setdomainname(name, (int)len);
+}
+
+
+extern asmlinkage long sys_setgroups(int gidsetsize, gid_t *grouplist);
+
+/* Note: it is necessary to treat gidsetsize as an unsigned int,
+ * with the corresponding cast to a signed int to insure that the
+ * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
+ * and the register representation of a signed int (msr in 64-bit mode) is performed.
+ */
+asmlinkage long sys32_setgroups(u32 gidsetsize, gid_t *grouplist)
+{
+ return sys_setgroups((int)gidsetsize, grouplist);
+}
+
+
+extern asmlinkage long sys_sethostname(char *name, int len);
+
+/* Note: it is necessary to treat len as an unsigned int,
+ * with the corresponding cast to a signed int to insure that the
+ * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
+ * and the register representation of a signed int (msr in 64-bit mode) is performed.
+ */
+asmlinkage long sys32_sethostname(char *name, u32 len)
+{
+ return sys_sethostname(name, (int)len);
+}
+
+
+extern asmlinkage long sys_setpgid(pid_t pid, pid_t pgid);
+
+/* Note: it is necessary to treat pid and pgid as unsigned ints,
+ * with the corresponding cast to a signed int to insure that the
+ * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
+ * and the register representation of a signed int (msr in 64-bit mode) is performed.
+ */
+asmlinkage long sys32_setpgid(u32 pid, u32 pgid)
+{
+ return sys_setpgid((int)pid, (int)pgid);
+}
+
+
+extern asmlinkage long sys_setpriority(int which, int who, int niceval);
+
+/* Note: it is necessary to treat which, who, and niceval as unsigned ints,
+ * with the corresponding cast to a signed int to insure that the
+ * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
+ * and the register representation of a signed int (msr in 64-bit mode) is performed.
+ */
+asmlinkage long sys32_setpriority(u32 which, u32 who, u32 niceval)
+{
+ return sys_setpriority((int)which, (int)who, (int)niceval);
+}
+
+
+extern asmlinkage long sys_ssetmask(int newmask);
+
+/* Note: it is necessary to treat newmask as an unsigned int,
+ * with the corresponding cast to a signed int to insure that the
+ * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
+ * and the register representation of a signed int (msr in 64-bit mode) is performed.
+ */
+asmlinkage long sys32_ssetmask(u32 newmask)
+{
+ return sys_ssetmask((int) newmask);
+}
+
+
+extern asmlinkage long sys_swapon(const char * specialfile, int swap_flags);
+
+/* Note: it is necessary to treat swap_flags as an unsigned int,
+ * with the corresponding cast to a signed int to insure that the
+ * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
+ * and the register representation of a signed int (msr in 64-bit mode) is performed.
+ */
+asmlinkage long sys32_swapon(const char * specialfile, u32 swap_flags)
+{
+ return sys_swapon(specialfile, (int)swap_flags);
+}
+
+
+extern asmlinkage long sys_syslog(int type, char * buf, int len);
+
+/* Note: it is necessary to treat type and len as an unsigned int,
+ * with the corresponding cast to a signed int to insure that the
+ * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
+ * and the register representation of a signed int (msr in 64-bit mode) is performed.
+ */
+asmlinkage long sys32_syslog(u32 type, char * buf, u32 len)
+{
+ return sys_syslog((int)type, buf, (int)len);
+}
+
+
+extern asmlinkage long sys_umask(int mask);
+
+/* Note: it is necessary to treat mask as an unsigned int,
+ * with the corresponding cast to a signed int to insure that the
+ * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
+ * and the register representation of a signed int (msr in 64-bit mode) is performed.
+ */
+asmlinkage long sys32_umask(u32 mask)
+{
+ return sys_umask((int)mask);
+}
+
+
+extern asmlinkage long sys_umount(char * name, int flags);
+
+/* Note: it is necessary to treat flags as an unsigned int,
+ * with the corresponding cast to a signed int to insure that the
+ * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
+ * and the register representation of a signed int (msr in 64-bit mode) is performed.
+ */
+asmlinkage long sys32_umount(char * name, u32 flags)
+{
+ return sys_umount(name, (int)flags);
+}
+
+
+extern asmlinkage int sys_vfork(int p1, int p2, int p3, int p4, int p5, int p6, struct pt_regs *regs);
+
+/* Note: it is necessary to treat p1, p2, p3, p4, p5, and p6 as unsigned ints,
+ * with the corresponding cast to a signed int to insure that the
+ * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
+ * and the register representation of a signed int (msr in 64-bit mode) is performed.
+ */
+asmlinkage int sys32_vfork(u32 p1, u32 p2, u32 p3, u32 p4, u32 p5, u32 p6, struct pt_regs *regs)
+{
+ return sys_vfork((int)p1, (int)p2, (int)p3, (int)p4, (int)p5, (int)p6, regs);
+}
+
+
+extern asmlinkage int sys_vm86(int a1, int a2, int a3, int a4);
+
+/* Note: it is necessary to treat a1, a2, a3, and a4 as unsigned ints,
+ * with the corresponding cast to a signed int to insure that the
+ * proper conversion (sign extension) between the register representation of a signed int (msr in 32-bit mode)
+ * and the register representation of a signed int (msr in 64-bit mode) is performed.
+ */
+asmlinkage int sys32_vm86(u32 a1, u32 a2, u32 a3, u32 a4)
+{
+ return sys_vm86((int)a1, (int)a2, (int)a3, (int)a4);
+}
+
+
+
+
+
+extern asmlinkage ssize_t sys_pread(unsigned int fd, char * buf,
+ size_t count, loff_t pos);
+
+extern asmlinkage ssize_t sys_pwrite(unsigned int fd, const char * buf,
+ size_t count, loff_t pos);
+
+typedef __kernel_ssize_t32 ssize_t32;
+
+asmlinkage ssize_t32 sys32_pread(unsigned int fd, char *ubuf,
+ __kernel_size_t32 count, u32 reg6, u32 poshi, u32 poslo)
+{
+ return sys_pread(fd, ubuf, count, ((loff_t)AA(poshi) << 32) | AA(poslo));
+}
+
+asmlinkage ssize_t32 sys32_pwrite(unsigned int fd, char *ubuf,
+ __kernel_size_t32 count, u32 reg6 ,u32 poshi, u32 poslo)
+{
+ return sys_pwrite(fd, ubuf, count, ((loff_t)AA(poshi) << 32) | AA(poslo));
+}
+
+
+extern asmlinkage long sys_truncate(const char * path, unsigned long length);
+extern asmlinkage long sys_ftruncate(unsigned int fd, unsigned long length);
+
+asmlinkage int sys32_truncate64(const char * path, u32 reg4, unsigned long high, unsigned long low)
+{
+ if ((int)high < 0)
+ return -EINVAL;
+ else
+ return sys_truncate(path, (high << 32) | low);
+}
+
+asmlinkage int sys32_ftruncate64(unsigned int fd, u32 reg4, unsigned long high, unsigned long low)
+{
+ if ((int)high < 0)
+ return -EINVAL;
+ else
+ return sys_ftruncate(fd, (high << 32) | low);
+}
+
+
+
+asmlinkage long sys32_fcntl64(unsigned int fd, unsigned int cmd, unsigned long arg)
+{
+ if (cmd >= F_GETLK64 && cmd <= F_SETLKW64)
+ return sys_fcntl(fd, cmd + F_GETLK - F_GETLK64, arg);
+ return sys32_fcntl(fd, cmd, arg);
+}
+
+
+
+
+struct __sysctl_args32 {
+ u32 name;
+ int nlen;
+ u32 oldval;
+ u32 oldlenp;
+ u32 newval;
+ u32 newlen;
+ u32 __unused[4];
+};
+
+extern asmlinkage long sys32_sysctl(struct __sysctl_args32 *args)
+{
+ struct __sysctl_args32 tmp;
+ int error;
+ size_t oldlen, *oldlenp = NULL;
+ unsigned long addr = (((long)&args->__unused[0]) + 7) & ~7;
+
+ if (copy_from_user(&tmp, args, sizeof(tmp)))
+ return -EFAULT;
+
+ if (tmp.oldval && tmp.oldlenp) {
+ /* Duh, this is ugly and might not work if sysctl_args
+ is in read-only memory, but do_sysctl does indirectly
+ a lot of uaccess in both directions and we'd have to
+ basically copy the whole sysctl.c here, and
+ glibc's __sysctl uses rw memory for the structure
+ anyway. */
+ if (get_user(oldlen, (u32 *)A(tmp.oldlenp)) ||
+ put_user(oldlen, (size_t *)addr))
+ return -EFAULT;
+ oldlenp = (size_t *)addr;
+ }
+
+ lock_kernel();
+ error = do_sysctl((int *)A(tmp.name), tmp.nlen, (void *)A(tmp.oldval),
+ oldlenp, (void *)A(tmp.newval), tmp.newlen);
+ unlock_kernel();
+ if (oldlenp) {
+ if (!error) {
+ if (get_user(oldlen, (size_t *)addr) ||
+ put_user(oldlen, (u32 *)A(tmp.oldlenp)))
+ error = -EFAULT;
+ }
+ copy_to_user(args->__unused, tmp.__unused, sizeof(tmp.__unused));
+ }
+ return error;
+}
+
+asmlinkage long sys32_time(__kernel_time_t32* tloc)
+{
+ __kernel_time_t32 secs;
+
+ struct timeval tv;
+
+ do_gettimeofday( &tv );
+ secs = tv.tv_sec;
+
+ if (tloc) {
+ if (put_user(secs,tloc))
+ secs = -EFAULT;
+ }
+
+ return secs;
+}
FUNET's LINUX-ADM group, linux-adm@nic.funet.fi
TCL-scripts by Sam Shen (who was at: slshen@lbl.gov)