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authorGreg Kurz <groug@kaod.org>2017-01-03 17:28:44 +0100
committerGreg Kurz <groug@kaod.org>2017-01-03 17:28:44 +0100
commit04b88c84a14b55d31b9e8aec1fe86ab43e111662 (patch)
treed584136250814b5ddf72512898b58a44601a7b69 /tests
parent5c3df1f0967e2166fff9c026ff1f616a89cab391 (diff)
tests: virtio-9p: add walk operation test
The walk operation is used to traverse the directory tree and to associate paths to fids. A single walk can be used to traverse up to P9_MAXWELEM path elements at the same time. The test creates a path with P9_MAXWELEM elements on the backend (à la 'mkdir -p') and issues a walk operation. The walk is expected to succeed without error. Reference: http://man.cat-v.org/plan_9/5/walk Signed-off-by: Greg Kurz <groug@kaod.org>
Diffstat (limited to 'tests')
-rw-r--r--tests/virtio-9p-test.c70
1 files changed, 70 insertions, 0 deletions
diff --git a/tests/virtio-9p-test.c b/tests/virtio-9p-test.c
index 37a256ef4a..2deb7fbf92 100644
--- a/tests/virtio-9p-test.c
+++ b/tests/virtio-9p-test.c
@@ -334,6 +334,45 @@ static void v9fs_rattach(P9Req *req, v9fs_qid *qid)
v9fs_req_free(req);
}
+/* size[4] Twalk tag[2] fid[4] newfid[4] nwname[2] nwname*(wname[s]) */
+static P9Req *v9fs_twalk(QVirtIO9P *v9p, uint32_t fid, uint32_t newfid,
+ uint16_t nwname, char *const wnames[])
+{
+ P9Req *req;
+ int i;
+ uint32_t size = 4 + 4 + 2;
+
+ for (i = 0; i < nwname; i++) {
+ size += v9fs_string_size(wnames[i]);
+ }
+ req = v9fs_req_init(v9p, size, P9_TWALK, ++(v9p->p9_req_tag));
+ v9fs_uint32_write(req, fid);
+ v9fs_uint32_write(req, newfid);
+ v9fs_uint16_write(req, nwname);
+ for (i = 0; i < nwname; i++) {
+ v9fs_string_write(req, wnames[i]);
+ }
+ v9fs_req_send(req);
+ return req;
+}
+
+/* size[4] Rwalk tag[2] nwqid[2] nwqid*(wqid[13]) */
+static void v9fs_rwalk(P9Req *req, uint16_t *nwqid, v9fs_qid **wqid)
+{
+ uint16_t local_nwqid;
+
+ v9fs_req_recv(req, P9_RWALK);
+ v9fs_uint16_read(req, &local_nwqid);
+ if (nwqid) {
+ *nwqid = local_nwqid;
+ }
+ if (wqid) {
+ *wqid = g_malloc(local_nwqid * 13);
+ v9fs_memread(req, *wqid, local_nwqid * 13);
+ }
+ v9fs_req_free(req);
+}
+
static void fs_version(QVirtIO9P *v9p)
{
const char *version = "9P2000.L";
@@ -358,6 +397,36 @@ static void fs_attach(QVirtIO9P *v9p)
v9fs_rattach(req, NULL);
}
+static void fs_walk(QVirtIO9P *v9p)
+{
+ char *wnames[P9_MAXWELEM], *paths[P9_MAXWELEM];
+ char *last_path = v9p->test_share;
+ uint16_t nwqid;
+ v9fs_qid *wqid;
+ int i;
+ P9Req *req;
+
+ for (i = 0; i < P9_MAXWELEM; i++) {
+ wnames[i] = g_strdup_printf("%s%d", __func__, i);
+ last_path = paths[i] = g_strdup_printf("%s/%s", last_path, wnames[i]);
+ g_assert(!mkdir(paths[i], 0700));
+ }
+
+ fs_attach(v9p);
+ req = v9fs_twalk(v9p, 0, 1, P9_MAXWELEM, wnames);
+ v9fs_rwalk(req, &nwqid, &wqid);
+
+ g_assert_cmpint(nwqid, ==, P9_MAXWELEM);
+
+ for (i = 0; i < P9_MAXWELEM; i++) {
+ rmdir(paths[P9_MAXWELEM - i - 1]);
+ g_free(paths[P9_MAXWELEM - i - 1]);
+ g_free(wnames[i]);
+ }
+
+ g_free(wqid);
+}
+
typedef void (*v9fs_test_fn)(QVirtIO9P *v9p);
static void v9fs_run_pci_test(gconstpointer data)
@@ -383,6 +452,7 @@ int main(int argc, char **argv)
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);
+ v9fs_qtest_pci_add("/virtio/9p/pci/fs/walk/basic", fs_walk);
return g_test_run();
}