From patchwork Thu Apr 29 12:14:51 2010 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Subject: [-V6,09/21] virtio-9p: Add P9_TVERSION support From: "Aneesh Kumar K.V" X-Patchwork-Id: 51280 Message-Id: <1272543303-9830-10-git-send-email-aneesh.kumar@linux.vnet.ibm.com> To: qemu-devel@nongnu.org Cc: ericvh@gmail.com, aliguori@us.ibm.com, jvrao@linux.vnet.ibm.com, aneesh.kumar@linux.vnet.ibm.com Date: Thu, 29 Apr 2010 17:44:51 +0530 From: Anthony Liguori Implement P9_TVERSION support. [sripathik@in.ibm.com: Handle unknown 9P versions as per the standards] Signed-off-by: Anthony Liguori Signed-off-by: Aneesh Kumar K.V --- hw/virtio-9p.c | 15 +++++++++++++-- 1 files changed, 13 insertions(+), 2 deletions(-) diff --git a/hw/virtio-9p.c b/hw/virtio-9p.c index c31f48c..c1c7723 100644 --- a/hw/virtio-9p.c +++ b/hw/virtio-9p.c @@ -843,9 +843,20 @@ static void v9fs_dummy(V9fsState *s, V9fsPDU *pdu) static void v9fs_version(V9fsState *s, V9fsPDU *pdu) { - if (debug_9p_pdu) { - pprint_pdu(pdu); + int32_t msize; + V9fsString version; + size_t offset = 7; + + pdu_unmarshal(pdu, offset, "ds", &msize, &version); + + if (strcmp(version.data, "9P2000.u")) { + v9fs_string_sprintf(&version, "unknown"); } + + offset += pdu_marshal(pdu, offset, "ds", msize, &version); + complete_pdu(s, pdu, offset); + + v9fs_string_free(&version); } static void v9fs_attach(V9fsState *s, V9fsPDU *pdu)