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tests: virtio-9p: add attach operation test 

The attach operation is used to establish a connection between the
client and the server. After this, the client is able to access the
underlying filesystem and do I/O.

This test simply ensures the operation succeeds without error.

Reference:

http://man.cat-v.org/plan_9/5/attach

Signed-off-by: Greg Kurz <groug@kaod.org>
This commit is contained in:
Greg Kurz 2017-01-03 17:28:44 +01:00
parent 6cc9906b4c
commit 5c3df1f096
1 changed files with 40 additions and 0 deletions
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40
tests/virtio-9p-test.c
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@ -25,6 +25,7 @@ typedef struct {
QOSState *qs;
QVirtQueue *vq;
char *test_share;
uint16_t p9_req_tag;
} QVirtIO9P;
static QVirtIO9P *qvirtio_9p_start(const char *driver)
@ -304,6 +305,35 @@ static void v9fs_rversion(P9Req *req, uint16_t *len, char **version)
v9fs_req_free(req);
}
/* size[4] Tattach tag[2] fid[4] afid[4] uname[s] aname[s] n_uname[4] */
static P9Req *v9fs_tattach(QVirtIO9P *v9p, uint32_t fid, uint32_t n_uname)
{
const char *uname = ""; /* ignored by QEMU */
const char *aname = ""; /* ignored by QEMU */
P9Req *req = v9fs_req_init(v9p, 4 + 4 + 2 + 2 + 4, P9_TATTACH,
++(v9p->p9_req_tag));
v9fs_uint32_write(req, fid);
v9fs_uint32_write(req, P9_NOFID);
v9fs_string_write(req, uname);
v9fs_string_write(req, aname);
v9fs_uint32_write(req, n_uname);
v9fs_req_send(req);
return req;
}
typedef char v9fs_qid[13];
/* size[4] Rattach tag[2] qid[13] */
static void v9fs_rattach(P9Req *req, v9fs_qid *qid)
{
v9fs_req_recv(req, P9_RATTACH);
if (qid) {
v9fs_memread(req, qid, 13);
}
v9fs_req_free(req);
}
static void fs_version(QVirtIO9P *v9p)
{
const char *version = "9P2000.L";
@ -319,6 +349,15 @@ static void fs_version(QVirtIO9P *v9p)
g_free(server_version);
}
static void fs_attach(QVirtIO9P *v9p)
{
P9Req *req;
fs_version(v9p);
req = v9fs_tattach(v9p, 0, getuid());
v9fs_rattach(req, NULL);
}
typedef void (*v9fs_test_fn)(QVirtIO9P *v9p);
static void v9fs_run_pci_test(gconstpointer data)
@ -343,6 +382,7 @@ int main(int argc, char **argv)
v9fs_qtest_pci_add("/virtio/9p/pci/nop", NULL);
v9fs_qtest_pci_add("/virtio/9p/pci/config", pci_config);
v9fs_qtest_pci_add("/virtio/9p/pci/fs/version/basic", fs_version);
v9fs_qtest_pci_add("/virtio/9p/pci/fs/attach/basic", fs_attach);
return g_test_run();
}