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kvm tools: Add missing 9p rename handler

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This adds a rename handler which actually allows us to rename files in the
guest.

Reported-by: Darren Hart <dvhart@linux.intel.com>
Signed-off-by: Sasha Levin <levinsasha928@gmail.com>
Signed-off-by: Pekka Enberg <penberg@kernel.org>
This commit is contained in:
Sasha Levin
2011-11-07 17:54:12 +02:00
committed by Will Deacon
parent 6fc5cd9b97
commit f161f28bc7
1 changed files with 27 additions and 0 deletions
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virtio/9p.c
+27
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@@ -700,6 +700,32 @@ err_out:
virtio_p9_error_reply(p9dev, pdu, errno, outlen);
return;
}
static void virtio_p9_rename(struct p9_dev *p9dev,
struct p9_pdu *pdu, u32 *outlen)
{
int ret;
u32 fid_val, new_fid_val;
struct p9_fid *fid, *new_fid;
char full_path[PATH_MAX], *new_name;
virtio_p9_pdu_readf(pdu, "dds", &fid_val, &new_fid_val, &new_name);
fid = &p9dev->fids[fid_val];
new_fid = &p9dev->fids[new_fid_val];
sprintf(full_path, "%s/%s", new_fid->abs_path, new_name);
ret = rename(fid->abs_path, full_path);
if (ret < 0)
goto err_out;
close_fid(p9dev, fid_val);
*outlen = pdu->write_offset;
virtio_p9_set_reply_header(pdu, *outlen);
return;
err_out:
virtio_p9_error_reply(p9dev, pdu, errno, outlen);
return;
}
static void virtio_p9_readlink(struct p9_dev *p9dev,
struct p9_pdu *pdu, u32 *outlen)
@@ -1073,6 +1099,7 @@ static p9_handler *virtio_9p_dotl_handler [] = {
[P9_TLCREATE] = virtio_p9_create,
[P9_TWRITE] = virtio_p9_write,
[P9_TREMOVE] = virtio_p9_remove,
[P9_TRENAME] = virtio_p9_rename,
};
static struct p9_pdu *virtio_p9_pdu_init(struct kvm *kvm, struct virt_queue *vq)