From: Sripathi Kodi <sripat...@in.ibm.com>
Currently the code does BUG_ON if it receives any version other
than 9P2000.u. However, 9P protocol says:
If the server does not understand the client's version string,
it should respond with an Rversion message (not Rerror) with
the version string the 7 characters "unknown".
Signed-off-by: Sripathi Kodi <sripat...@in.ibm.com>
Signed-off-by: M. Mohan Kumar <mo...@in.ibm.com>
Signed-off-by: Aneesh Kumar K.V <aneesh.ku...@linux.vnet.ibm.com>
---
hw/virtio-9p.c | 5 ++++-
1 files changed, 4 insertions(+), 1 deletions(-)
diff --git a/hw/virtio-9p.c b/hw/virtio-9p.c
index 1b791ca..e6ddb3a 100644
--- a/hw/virtio-9p.c
+++ b/hw/virtio-9p.c
@@ -725,7 +725,10 @@ static void v9fs_version(V9fsState *s, V9fsPDU *pdu)
size_t offset = 7;
pdu_unmarshal(pdu, offset, "ds", &msize, &version);
- BUG_ON(strcmp(version.data, "9P2000.u") != 0);
+
+ if (strcmp(version.data, "9P2000.u")) {
+ v9fs_string_sprintf(&version, "unknown");
+ }
offset += pdu_marshal(pdu, offset, "ds", msize, &version);
complete_pdu(s, pdu, offset);
--
1.7.0.2.323.g0d092
