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bh=jhjZBzKdUPWmQBoGYYNmaWrngqD0E272Oq6g881pzZA=; b=NzpAVxxJ+CJJB8XrQ/3pi7I1O2Xe36HGJzYJa5J6eyLyBDMAptcqc8QxcR4RrkG9PlS3eg LUeIe6rNt3SS9GmON7Wu+12FXZNMvHZbSoKsTulLtNrr4t0tp3yDaq+2rNcGVuEZkD6GqG BVFUnpu0/AKO9K7pPygZHQF1jfkLH1k= X-MC-Unique: tsvrPN_aPUWBRm8FDFYhfA-1 From: Vivek Goyal To: qemu-devel@nongnu.org Subject: [PATCH v2 4/5] virtiofsd: Open lo->source while setting up root in sandbox=NONE mode Date: Thu, 30 Jul 2020 15:47:35 -0400 Message-Id: <20200730194736.173994-5-vgoyal@redhat.com> In-Reply-To: <20200730194736.173994-1-vgoyal@redhat.com> References: <20200730194736.173994-1-vgoyal@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.84 on 10.5.11.23 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=205.139.110.61; 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charset="utf-8" In sandbox=3DNONE mode, lo->source points to the directory which is being exported. We have not done any chroot()/pivot_root(). So open lo->source. Signed-off-by: Vivek Goyal --- tools/virtiofsd/passthrough_ll.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/tools/virtiofsd/passthrough_ll.c b/tools/virtiofsd/passthrough= _ll.c index 76ef891105..a6fa816b6c 100644 --- a/tools/virtiofsd/passthrough_ll.c +++ b/tools/virtiofsd/passthrough_ll.c @@ -3209,7 +3209,10 @@ static void setup_root(struct lo_data *lo, struct lo= _inode *root) int fd, res; struct stat stat; =20 - fd =3D open("/", O_PATH); + if (lo->sandbox =3D=3D SANDBOX_NONE) + fd =3D open(lo->source, O_PATH); + else + fd =3D open("/", O_PATH); if (fd =3D=3D -1) { fuse_log(FUSE_LOG_ERR, "open(%s, O_PATH): %m\n", lo->source); exit(1); --=20 2.25.4