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[8/8] tests: virtio-9p: ".." cannot be used to walk out of the shared directory

Message ID 148127571577.2633.15384169688307851883.stgit@bahia
State New
Headers show

Commit Message

Greg Kurz Dec. 9, 2016, 9:28 a.m. UTC 
According to the 9P spec at http://man.cat-v.org/plan_9/5/intro, the
parent directory of the root directory of a server's tree is itself.
This test hence checks that the qid of the root directory as returned by
attach is the same as the qid of ".." when walking from the root directory.

Signed-off-by: Greg Kurz <groug@kaod.org>
---
 tests/virtio-9p-test.c |   21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)
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Patch

diff --git a/tests/virtio-9p-test.c b/tests/virtio-9p-test.c
index 83cb23b3afc7..060407b20e39 100644
--- a/tests/virtio-9p-test.c
+++ b/tests/virtio-9p-test.c
@@ -450,6 +450,25 @@  static void fs_walk_no_slash(QVirtIO9P *v9p)
     g_free(wnames[0]);
 }
 
+static void fs_walk_dotdot(QVirtIO9P *v9p)
+{
+    char *const wnames[] = { g_strdup("..") };
+    v9fs_qid root_qid, *wqid;
+    P9Req *req;
+
+    fs_version(v9p);
+    req = v9fs_tattach(v9p, 0, getuid());
+    v9fs_rattach(req, &root_qid);
+
+    req = v9fs_twalk(v9p, 0, 1, 1, wnames);
+    v9fs_rwalk(req, NULL, &wqid); /* We now we'll get one qid */
+
+    g_assert_cmpmem(&root_qid, 13, wqid[0], 13);
+
+    g_free(wqid);
+    g_free(wnames[0]);
+}
+
 typedef void (*v9fs_test_fn)(QVirtIO9P *v9p);
 
 static void v9fs_run_pci_test(gconstpointer data)
@@ -477,6 +496,8 @@  int main(int argc, char **argv)
     v9fs_qtest_pci_add("/virtio/9p/pci/fs/attach/basic", fs_attach);
     v9fs_qtest_pci_add("/virtio/9p/pci/fs/walk/basic", fs_walk);
     v9fs_qtest_pci_add("/virtio/9p/pci/fs/walk/no_slash", fs_walk_no_slash);
+    v9fs_qtest_pci_add("/virtio/9p/pci/fs/walk/dotdot_from_root",
+                       fs_walk_dotdot);
 
     return g_test_run();
 }