diff options
| author | Theo de Raadt <deraadt@cvs.openbsd.org> | 1997-06-09 09:41:09 +0000 |
|---|---|---|
| committer | Theo de Raadt <deraadt@cvs.openbsd.org> | 1997-06-09 09:41:09 +0000 |
| commit | 3546f3648cc173ad11f79823c29958c0a55acafa (patch) | |
| tree | 03bae90e4dd1a5d333dc7e3a9b198085be014655 /sys | |
| parent | e53da144e85be5e0c658b2b993c459ea3cf3c925 (diff) | |
zone and constrain according to disklabel partition slots; part by gson@araneus.fi
Diffstat (limited to 'sys')
| -rw-r--r-- | sys/dev/vnd.c | 21 |
1 files changed, 14 insertions, 7 deletions
diff --git a/sys/dev/vnd.c b/sys/dev/vnd.c index 1bfc37e7042..b7b67cd5b64 100644 --- a/sys/dev/vnd.c +++ b/sys/dev/vnd.c @@ -1,4 +1,4 @@ -/* $OpenBSD: vnd.c,v 1.14 1997/06/08 17:38:29 deraadt Exp $ */ +/* $OpenBSD: vnd.c,v 1.15 1997/06/09 09:41:08 deraadt Exp $ */ /* $NetBSD: vnd.c,v 1.26 1996/03/30 23:06:11 christos Exp $ */ /* @@ -384,11 +384,14 @@ vndstrategy(bp) bn = bp->b_blkno; sz = howmany(bp->b_bcount, DEV_BSIZE); bp->b_resid = bp->b_bcount; - if (bn < 0 || bn + sz > vnd->sc_size) { - if (bn != vnd->sc_size) { - bp->b_error = EINVAL; - bp->b_flags |= B_ERROR; - } + if (bn < 0) { + bp->b_error = EINVAL; + bp->b_flags |= B_ERROR; + biodone(bp); + return; + } + if (DISKPART(bp->b_dev) != RAW_PART && + bounds_check_with_label(bp, vnd->sc_dk.dk_label, 1) == 0) { biodone(bp); return; } @@ -416,11 +419,14 @@ vndstrategy(bp) /* Loop until all queued requests are handled. */ for (;;) { + int part = DISKPART(bp->b_dev); + int off = vnd->sc_dk.dk_label->d_partitions[part].p_offset; + aiov.iov_base = bp->b_data; auio.uio_resid = aiov.iov_len = bp->b_bcount; auio.uio_iov = &aiov; auio.uio_iovcnt = 1; - auio.uio_offset = dbtob(bp->b_blkno); + auio.uio_offset = dbtob(bp->b_blkno + off); auio.uio_segflg = UIO_SYSSPACE; auio.uio_procp = NULL; @@ -459,6 +465,7 @@ vndstrategy(bp) } /* The old-style buffercache bypassing method. */ + bn += vnd->sc_dk.dk_label->d_partitions[DISKPART(bp->b_dev)].p_offset; bn = dbtob(bn); bsize = vnd->sc_vp->v_mount->mnt_stat.f_iosize; addr = bp->b_data; |