From 284d69d7b0ddbfa7a18a9d36e5cf00df3cf66773 Mon Sep 17 00:00:00 2001 From: mbr Date: Tue, 29 Apr 2003 12:36:03 +0000 Subject: Do the same thing for stat64_copyout() as we already do for newstat_copyout(). Lie about disk drives which are character devices in FreeBSD but block devices under Linux. PR: 37227 Submitted by: Vladimir B. Grebenschikov Reviewed by: phk MFC after: 2 weeks --- sys/compat/linux/linux_stats.c | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) (limited to 'sys/compat/linux/linux_stats.c') diff --git a/sys/compat/linux/linux_stats.c b/sys/compat/linux/linux_stats.c index eab5ad5..969dcb6 100644 --- a/sys/compat/linux/linux_stats.c +++ b/sys/compat/linux/linux_stats.c @@ -380,6 +380,8 @@ static int stat64_copyout(struct stat *buf, void *ubuf) { struct l_stat64 lbuf; + struct cdevsw *cdevsw; + dev_t dev; bzero(&lbuf, sizeof(lbuf)); lbuf.st_dev = uminor(buf->st_dev) | (umajor(buf->st_dev) << 8); @@ -396,6 +398,23 @@ stat64_copyout(struct stat *buf, void *ubuf) lbuf.st_blksize = buf->st_blksize; lbuf.st_blocks = buf->st_blocks; + /* Lie about disk drives which are character devices + * in FreeBSD but block devices under Linux. + */ + if (S_ISCHR(lbuf.st_mode) && + (dev = udev2dev(buf->st_rdev, 0)) != NODEV) { + cdevsw = devsw(dev); + if (cdevsw != NULL && (cdevsw->d_flags & D_DISK)) { + lbuf.st_mode &= ~S_IFMT; + lbuf.st_mode |= S_IFBLK; + + /* XXX this may not be quite right */ + /* Map major number to 0 */ + lbuf.st_dev = uminor(buf->st_dev) & 0xf; + lbuf.st_rdev = buf->st_rdev & 0xff; + } + } + /* * The __st_ino field makes all the difference. In the Linux kernel * it is conditionally compiled based on STAT64_HAS_BROKEN_ST_INO, -- cgit v1.1