This test case uses a Tsymlink 9p request to create a symbolic link using
the 9pfs 'local' fs driver.
Signed-off-by: Christian Schoenebeck <qemu_...@crudebyte.com>
Reviewed-by: Greg Kurz <gr...@kaod.org>
Message-Id:
<84ac76937855bf441242372cc3e62df42f0a3dc4.1603285620.git.qemu_...@crudebyte.com>
Signed-off-by: Christian Schoenebeck <qemu_...@crudebyte.com>
---
tests/qtest/virtio-9p-test.c | 77 ++++++++++++++++++++++++++++++++++++
1 file changed, 77 insertions(+)
diff --git a/tests/qtest/virtio-9p-test.c b/tests/qtest/virtio-9p-test.c
index 6b74a1fd7e..0c11417236 100644
--- a/tests/qtest/virtio-9p-test.c
+++ b/tests/qtest/virtio-9p-test.c
@@ -259,6 +259,7 @@ static const char *rmessage_name(uint8_t id)
id == P9_RWRITE ? "RWRITE" :
id == P9_RMKDIR ? "RMKDIR" :
id == P9_RLCREATE ? "RLCREATE" :
+ id == P9_RSYMLINK ? "RSYMLINK" :
id == P9_RUNLINKAT ? "RUNLINKAT" :
id == P9_RFLUSH ? "RFLUSH" :
id == P9_RREADDIR ? "READDIR" :
@@ -733,6 +734,39 @@ static void v9fs_rlcreate(P9Req *req, v9fs_qid *qid,
uint32_t *iounit)
v9fs_req_free(req);
}
+/* size[4] Tsymlink tag[2] fid[4] name[s] symtgt[s] gid[4] */
+static P9Req *v9fs_tsymlink(QVirtio9P *v9p, uint32_t fid, const char *name,
+ const char *symtgt, uint32_t gid, uint16_t tag)
+{
+ P9Req *req;
+
+ uint32_t body_size = 4 + 4;
+ uint16_t string_size = v9fs_string_size(name) + v9fs_string_size(symtgt);
+
+ g_assert_cmpint(body_size, <=, UINT32_MAX - string_size);
+ body_size += string_size;
+
+ req = v9fs_req_init(v9p, body_size, P9_TSYMLINK, tag);
+ v9fs_uint32_write(req, fid);
+ v9fs_string_write(req, name);
+ v9fs_string_write(req, symtgt);
+ v9fs_uint32_write(req, gid);
+ v9fs_req_send(req);
+ return req;
+}
+
+/* size[4] Rsymlink tag[2] qid[13] */
+static void v9fs_rsymlink(P9Req *req, v9fs_qid *qid)
+{
+ v9fs_req_recv(req, P9_RSYMLINK);
+ if (qid) {
+ v9fs_memread(req, qid, 13);
+ } else {
+ v9fs_memskip(req, 13);
+ }
+ v9fs_req_free(req);
+}
+
/* size[4] Tunlinkat tag[2] dirfd[4] name[s] flags[4] */
static P9Req *v9fs_tunlinkat(QVirtio9P *v9p, uint32_t dirfd, const char *name,
uint32_t flags, uint16_t tag)
@@ -1089,6 +1123,25 @@ static uint32_t do_lcreate(QVirtio9P *v9p, const char
*path,
return fid;
}
+/* create symlink named @a clink in directory @a path pointing to @a to */
+static void do_symlink(QVirtio9P *v9p, const char *path, const char *clink,
+ const char *to)
+{
+ char *const name = g_strdup(clink);
+ char *const dst = g_strdup(to);
+ uint32_t fid;
+ P9Req *req;
+
+ fid = do_walk(v9p, path);
+
+ req = v9fs_tsymlink(v9p, fid, name, dst, 0, 0);
+ v9fs_req_wait_for_reply(req, NULL);
+ v9fs_rsymlink(req, NULL);
+
+ g_free(dst);
+ g_free(name);
+}
+
static void do_unlinkat(QVirtio9P *v9p, const char *atpath, const char *rpath,
uint32_t flags)
{
@@ -1219,6 +1272,29 @@ static void fs_unlinkat_file(void *obj, void *data,
QGuestAllocator *t_alloc)
g_free(new_file);
}
+static void fs_symlink_file(void *obj, void *data, QGuestAllocator *t_alloc)
+{
+ QVirtio9P *v9p = obj;
+ alloc = t_alloc;
+ struct stat st;
+ char *real_file = virtio_9p_test_path("05/real_file");
+ char *symlink_file = virtio_9p_test_path("05/symlink_file");
+
+ do_attach(v9p);
+ do_mkdir(v9p, "/", "05");
+ do_lcreate(v9p, "05", "real_file");
+ g_assert(stat(real_file, &st) == 0);
+ g_assert((st.st_mode & S_IFMT) == S_IFREG);
+
+ do_symlink(v9p, "05", "symlink_file", "real_file");
+
+ /* check if created link exists now */
+ g_assert(stat(symlink_file, &st) == 0);
+
+ g_free(symlink_file);
+ g_free(real_file);
+}
+
static void *assign_9p_local_driver(GString *cmd_line, void *arg)
{
virtio_9p_assign_local_driver(cmd_line, "security_model=mapped-xattr");
@@ -1262,6 +1338,7 @@ static void register_virtio_9p_test(void)
qos_add_test("local/unlinkat_dir", "virtio-9p", fs_unlinkat_dir, &opts);
qos_add_test("local/create_file", "virtio-9p", fs_create_file, &opts);
qos_add_test("local/unlinkat_file", "virtio-9p", fs_unlinkat_file, &opts);
+ qos_add_test("local/symlink_file", "virtio-9p", fs_symlink_file, &opts);
}
libqos_init(register_virtio_9p_test);
--
2.20.1
