STATIC int xfs_ioc_bulkstat( xfs_mount_t *mp, unsigned int cmd, void __user *arg) { xfs_fsop_bulkreq_t bulkreq; int count; /* # of records returned */ xfs_ino_t inlast; /* last inode number */ int done; int error; /* done = 1 if there are more stats to get and if bulkstat */ /* should be called again (unused here, but used in dmapi) */ if (!capable(CAP_SYS_ADMIN)) return -EPERM; if (XFS_FORCED_SHUTDOWN(mp)) return -XFS_ERROR(EIO); if (copy_from_user(&bulkreq, arg, sizeof(xfs_fsop_bulkreq_t))) return -XFS_ERROR(EFAULT); if (copy_from_user(&inlast, bulkreq.lastip, sizeof(__s64))) return -XFS_ERROR(EFAULT); if ((count = bulkreq.icount) <= 0) return -XFS_ERROR(EINVAL); if (bulkreq.ubuffer == NULL) return -XFS_ERROR(EINVAL); if (cmd == XFS_IOC_FSINUMBERS) error = xfs_inumbers(mp, &inlast, &count, bulkreq.ubuffer, xfs_inumbers_fmt); else if (cmd == XFS_IOC_FSBULKSTAT_SINGLE) error = xfs_bulkstat_single(mp, &inlast, bulkreq.ubuffer, &done); else /* XFS_IOC_FSBULKSTAT */ error = xfs_bulkstat(mp, &inlast, &count, (bulkstat_one_pf)xfs_bulkstat_one, NULL, sizeof(xfs_bstat_t), bulkreq.ubuffer, BULKSTAT_FG_QUICK, &done); if (error) return -error; if (bulkreq.ocount != NULL) { if (copy_to_user(bulkreq.lastip, &inlast, sizeof(xfs_ino_t))) return -XFS_ERROR(EFAULT); if (copy_to_user(bulkreq.ocount, &count, sizeof(count))) return -XFS_ERROR(EFAULT); } return 0; }
/* copied from xfs_ioctl.c */ STATIC int xfs_ioc_bulkstat_compat( xfs_mount_t *mp, unsigned int cmd, void __user *arg) { compat_xfs_fsop_bulkreq_t __user *p32 = (void __user *)arg; u32 addr; xfs_fsop_bulkreq_t bulkreq; int count; /* # of records returned */ xfs_ino_t inlast; /* last inode number */ int done; int error; /* done = 1 if there are more stats to get and if bulkstat */ /* should be called again (unused here, but used in dmapi) */ if (!capable(CAP_SYS_ADMIN)) return -EPERM; if (XFS_FORCED_SHUTDOWN(mp)) return -XFS_ERROR(EIO); if (get_user(addr, &p32->lastip)) return -EFAULT; bulkreq.lastip = compat_ptr(addr); if (get_user(bulkreq.icount, &p32->icount) || get_user(addr, &p32->ubuffer)) return -EFAULT; bulkreq.ubuffer = compat_ptr(addr); if (get_user(addr, &p32->ocount)) return -EFAULT; bulkreq.ocount = compat_ptr(addr); if (copy_from_user(&inlast, bulkreq.lastip, sizeof(__s64))) return -XFS_ERROR(EFAULT); if ((count = bulkreq.icount) <= 0) return -XFS_ERROR(EINVAL); if (cmd == XFS_IOC_FSINUMBERS) error = xfs_inumbers(mp, &inlast, &count, bulkreq.ubuffer, xfs_inumbers_fmt_compat); else { /* declare a var to get a warning in case the type changes */ bulkstat_one_fmt_pf formatter = xfs_bulkstat_one_fmt_compat; error = xfs_bulkstat(mp, &inlast, &count, xfs_bulkstat_one, formatter, sizeof(compat_xfs_bstat_t), bulkreq.ubuffer, BULKSTAT_FG_QUICK, &done); } if (error) return -error; if (bulkreq.ocount != NULL) { if (copy_to_user(bulkreq.lastip, &inlast, sizeof(xfs_ino_t))) return -XFS_ERROR(EFAULT); if (copy_to_user(bulkreq.ocount, &count, sizeof(count))) return -XFS_ERROR(EFAULT); } return 0; }