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virtio-9p: Add P9_TATTACH support. 

Implement P9_TATTACH support.

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
This commit is contained in:
Anthony Liguori 2010-04-29 17:44:52 +05:30
parent 92c1ad037a
commit 955efc4755
1 changed files with 31 additions and 2 deletions
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33
hw/virtio-9p.c
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@ -861,9 +861,38 @@ static void v9fs_version(V9fsState *s, V9fsPDU *pdu)
static void v9fs_attach(V9fsState *s, V9fsPDU *pdu)
{
if (debug_9p_pdu) {
pprint_pdu(pdu);
int32_t fid, afid, n_uname;
V9fsString uname, aname;
V9fsFidState *fidp;
V9fsQID qid;
size_t offset = 7;
ssize_t err;
pdu_unmarshal(pdu, offset, "ddssd", &fid, &afid, &uname, &aname, &n_uname);
fidp = alloc_fid(s, fid);
if (fidp == NULL) {
err = -EINVAL;
goto out;
}
fidp->uid = n_uname;
v9fs_string_sprintf(&fidp->path, "%s", "/");
err = fid_to_qid(s, fidp, &qid);
if (err) {
err = -EINVAL;
free_fid(s, fid);
goto out;
}
offset += pdu_marshal(pdu, offset, "Q", &qid);
err = offset;
out:
complete_pdu(s, pdu, err);
v9fs_string_free(&uname);
v9fs_string_free(&aname);
}
static void v9fs_stat(V9fsState *s, V9fsPDU *pdu)