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[Qemu-devel] [PULL 11/13] tests: virtio-9p: add walk operation test
From: |
Greg Kurz |
Subject: |
[Qemu-devel] [PULL 11/13] tests: virtio-9p: add walk operation test |
Date: |
Wed, 4 Jan 2017 09:21:45 +0100 |
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 <address@hidden>
---
tests/virtio-9p-test.c | 70 ++++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 70 insertions(+)
diff --git a/tests/virtio-9p-test.c b/tests/virtio-9p-test.c
index 37a256ef4a59..2deb7fbf92f1 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();
}
--
2.7.4
- [Qemu-devel] [PULL 00/13] 9p patches 20170104, Greg Kurz, 2017/01/04
- [Qemu-devel] [PULL 03/13] 9pfs: call v9fs_init_qiov_from_pdu before v9fs_pack, Greg Kurz, 2017/01/04
- [Qemu-devel] [PULL 01/13] 9pfs: move pdus to V9fsState, Greg Kurz, 2017/01/04
- [Qemu-devel] [PULL 02/13] 9pfs: introduce transport specific callbacks, Greg Kurz, 2017/01/04
- [Qemu-devel] [PULL 05/13] 9pfs: fix crash when fsdev is missing, Greg Kurz, 2017/01/04
- [Qemu-devel] [PULL 06/13] tests: virtio-9p: rename PCI configuration test, Greg Kurz, 2017/01/04
- [Qemu-devel] [PULL 04/13] 9pfs: introduce init_out/in_iov_from_pdu, Greg Kurz, 2017/01/04
- [Qemu-devel] [PULL 07/13] tests: virtio-9p: code refactoring, Greg Kurz, 2017/01/04
- [Qemu-devel] [PULL 08/13] 9pfs: fix P9_NOTAG and P9_NOFID macros, Greg Kurz, 2017/01/04
- [Qemu-devel] [PULL 11/13] tests: virtio-9p: add walk operation test,
Greg Kurz <=
- [Qemu-devel] [PULL 10/13] tests: virtio-9p: add attach operation test, Greg Kurz, 2017/01/04
- [Qemu-devel] [PULL 12/13] tests: virtio-9p: no slash in path elements during walk, Greg Kurz, 2017/01/04
- [Qemu-devel] [PULL 09/13] tests: virtio-9p: add version operation test, Greg Kurz, 2017/01/04
- [Qemu-devel] [PULL 13/13] tests: virtio-9p: ".." cannot be used to walk out of the shared directory, Greg Kurz, 2017/01/04
- Re: [Qemu-devel] [PULL 00/13] 9p patches 20170104, Peter Maydell, 2017/01/05