tv[0].tv_usec = 0;
tv[1].tv_usec = 0;
}
- return do_utimes(filename, t ? tv : NULL);
+ return do_utimes(AT_FDCWD, filename, t ? tv : NULL);
}
-asmlinkage long compat_sys_utimes(char __user *filename, struct compat_timeval __user *t)
+asmlinkage long compat_sys_futimesat(int dfd, char __user *filename, struct compat_timeval __user *t)
{
struct timeval tv[2];
get_user(tv[1].tv_usec, &t[1].tv_usec))
return -EFAULT;
}
- return do_utimes(filename, t ? tv : NULL);
+ return do_utimes(dfd, filename, t ? tv : NULL);
+}
+
+asmlinkage long compat_sys_utimes(char __user *filename, struct compat_timeval __user *t)
+{
+ return compat_sys_futimesat(AT_FDCWD, filename, t);
}
asmlinkage long compat_sys_newstat(char __user * filename,
struct compat_stat __user *statbuf)
{
struct kstat stat;
- int error = vfs_stat(filename, &stat);
+ int error = vfs_stat_fd(AT_FDCWD, filename, &stat);
if (!error)
error = cp_compat_stat(&stat, statbuf);
struct compat_stat __user *statbuf)
{
struct kstat stat;
- int error = vfs_lstat(filename, &stat);
+ int error = vfs_lstat_fd(AT_FDCWD, filename, &stat);
+
+ if (!error)
+ error = cp_compat_stat(&stat, statbuf);
+ return error;
+}
+
+asmlinkage long compat_sys_newfstatat(int dfd, char __user *filename,
+ struct compat_stat __user *statbuf, int flag)
+{
+ struct kstat stat;
+ int error = -EINVAL;
+
+ if ((flag & ~AT_SYMLINK_NOFOLLOW) != 0)
+ goto out;
+
+ if (flag & AT_SYMLINK_NOFOLLOW)
+ error = vfs_lstat_fd(dfd, filename, &stat);
+ else
+ error = vfs_stat_fd(dfd, filename, &stat);
if (!error)
error = cp_compat_stat(&stat, statbuf);
+
+out:
return error;
}
if (!error) {
struct kstatfs tmp;
error = vfs_statfs(nd.dentry->d_inode->i_sb, &tmp);
- if (!error && put_compat_statfs(buf, &tmp))
- error = -EFAULT;
+ if (!error)
+ error = put_compat_statfs(buf, &tmp);
path_release(&nd);
}
return error;
if (!file)
goto out;
error = vfs_statfs(file->f_dentry->d_inode->i_sb, &tmp);
- if (!error && put_compat_statfs(buf, &tmp))
- error = -EFAULT;
+ if (!error)
+ error = put_compat_statfs(buf, &tmp);
fput(file);
out:
return error;
if (!error) {
struct kstatfs tmp;
error = vfs_statfs(nd.dentry->d_inode->i_sb, &tmp);
- if (!error && put_compat_statfs64(buf, &tmp))
- error = -EFAULT;
+ if (!error)
+ error = put_compat_statfs64(buf, &tmp);
path_release(&nd);
}
return error;
if (!file)
goto out;
error = vfs_statfs(file->f_dentry->d_inode->i_sb, &tmp);
- if (!error && put_compat_statfs64(buf, &tmp))
- error = -EFAULT;
+ if (!error)
+ error = put_compat_statfs64(buf, &tmp);
fput(file);
out:
return error;
#define IOCTL_HASHSIZE 256
static struct ioctl_trans *ioctl32_hash_table[IOCTL_HASHSIZE];
-static DECLARE_RWSEM(ioctl32_sem);
extern struct ioctl_trans ioctl_start[];
extern int ioctl_table_size;
break;
}
- /* When register_ioctl32_conversion is finally gone remove
- this lock! -AK */
- down_read(&ioctl32_sem);
for (t = ioctl32_hash_table[ioctl32_hash(cmd)]; t; t = t->next) {
if (t->cmd == cmd)
goto found_handler;
}
- up_read(&ioctl32_sem);
if (S_ISSOCK(filp->f_dentry->d_inode->i_mode) &&
cmd >= SIOCDEVPRIVATE && cmd <= (SIOCDEVPRIVATE + 15)) {
lock_kernel();
error = t->handler(fd, cmd, arg, filp);
unlock_kernel();
- up_read(&ioctl32_sem);
goto out_fput;
}
- up_read(&ioctl32_sem);
do_ioctl:
error = vfs_ioctl(filp, fd, cmd, arg);
out_fput:
ret = sys_fcntl(fd, cmd, (unsigned long)&f);
set_fs(old_fs);
if (cmd == F_GETLK && ret == 0) {
- if ((f.l_start >= COMPAT_OFF_T_MAX) ||
- ((f.l_start + f.l_len) > COMPAT_OFF_T_MAX))
+ /* GETLK was successfule and we need to return the data...
+ * but it needs to fit in the compat structure.
+ * l_start shouldn't be too big, unless the original
+ * start + end is greater than COMPAT_OFF_T_MAX, in which
+ * case the app was asking for trouble, so we return
+ * -EOVERFLOW in that case.
+ * l_len could be too big, in which case we just truncate it,
+ * and only allow the app to see that part of the conflicting
+ * lock that might make sense to it anyway
+ */
+
+ if (f.l_start > COMPAT_OFF_T_MAX)
ret = -EOVERFLOW;
+ if (f.l_len > COMPAT_OFF_T_MAX)
+ f.l_len = COMPAT_OFF_T_MAX;
if (ret == 0)
ret = put_compat_flock(&f, compat_ptr(arg));
}
(unsigned long)&f);
set_fs(old_fs);
if (cmd == F_GETLK64 && ret == 0) {
- if ((f.l_start >= COMPAT_LOFF_T_MAX) ||
- ((f.l_start + f.l_len) > COMPAT_LOFF_T_MAX))
+ /* need to return lock information - see above for commentary */
+ if (f.l_start > COMPAT_LOFF_T_MAX)
ret = -EOVERFLOW;
+ if (f.l_len > COMPAT_LOFF_T_MAX)
+ f.l_len = COMPAT_LOFF_T_MAX;
if (ret == 0)
ret = put_compat_flock64(&f, compat_ptr(arg));
}
}
ret = rw_verify_area(type, file, pos, tot_len);
- if (ret)
+ if (ret < 0)
goto out;
fnv = NULL;
asmlinkage long
compat_sys_open(const char __user *filename, int flags, int mode)
{
- return do_sys_open(filename, flags, mode);
+ return do_sys_open(AT_FDCWD, filename, flags, mode);
+}
+
+/*
+ * Exactly like fs/open.c:sys_openat(), except that it doesn't set the
+ * O_LARGEFILE flag.
+ */
+asmlinkage long
+compat_sys_openat(int dfd, const char __user *filename, int flags, int mode)
+{
+ return do_sys_open(dfd, filename, flags, mode);
}
/*
* Ooo, nasty. We need here to frob 32-bit unsigned longs to
* 64-bit unsigned longs.
*/
-static inline
+static
int compat_get_fd_set(unsigned long nr, compat_ulong_t __user *ufdset,
unsigned long *fdset)
{
return 0;
}
-static inline
+static
void compat_set_fd_set(unsigned long nr, compat_ulong_t __user *ufdset,
unsigned long *fdset)
{