@@ -18,6 +18,62 @@
#define QVIRTIO_9P_TIMEOUT_US (10 * 1000 * 1000)
static QGuestAllocator *alloc;
+/*
+ * Used to auto generate new fids. Start with arbitrary high value to avoid
+ * collision with hard coded fids in basic test code.
+ */
+static uint32_t fid_generator = 1000;
+
+static uint32_t genfid(void)
+{
+ return fid_generator++;
+}
+
+/**
+ * Splits the @a in string by @a delim into individual (non empty) strings
+ * and outputs them to @a out. The output array @a out is NULL terminated.
+ *
+ * Output array @a out must be freed by calling split_free().
+ *
+ * @returns number of individual elements in output array @a out (without the
+ * final NULL terminating element)
+ */
+static int split(const char *in, const char *delim, char ***out)
+{
+ int n = 0, i = 0;
+ char *tmp, *p;
+
+ tmp = g_strdup(in);
+ for (p = strtok(tmp, delim); p != NULL; p = strtok(NULL, delim)) {
+ if (strlen(p) > 0) {
+ ++n;
+ }
+ }
+ g_free(tmp);
+
+ *out = g_malloc0(n * sizeof(char *) + 1); /* last element NULL delimiter */
+
+ tmp = g_strdup(in);
+ for (p = strtok(tmp, delim); p != NULL; p = strtok(NULL, delim)) {
+ if (strlen(p) > 0) {
+ (*out)[i++] = g_strdup(p);
+ }
+ }
+ g_free(tmp);
+
+ return n;
+}
+
+static void split_free(char ***out)
+{
+ int i;
+ for (i = 0; (*out)[i]; ++i) {
+ g_free((*out)[i]);
+ }
+ g_free(*out);
+ *out = NULL;
+}
+
static void pci_config(void *obj, void *data, QGuestAllocator *t_alloc)
{
QVirtio9P *v9p = obj;
@@ -203,6 +259,7 @@ static const char *rmessage_name(uint8_t id)
id == P9_RWALK ? "RWALK" :
id == P9_RLOPEN ? "RLOPEN" :
id == P9_RWRITE ? "RWRITE" :
+ id == P9_RMKDIR ? "RMKDIR" :
id == P9_RFLUSH ? "RFLUSH" :
id == P9_RREADDIR ? "READDIR" :
"<unknown>";
@@ -580,6 +637,39 @@ static bool fs_dirents_contain_name(struct V9fsDirent *e, const char* name)
return false;
}
+/* size[4] Tmkdir tag[2] dfid[4] name[s] mode[4] gid[4] */
+static P9Req *v9fs_tmkdir(QVirtio9P *v9p, uint32_t dfid, const char *name,
+ uint32_t mode, uint32_t gid, uint16_t tag)
+{
+ P9Req *req;
+
+ uint32_t body_size = 4 + 4 + 4;
+ uint16_t string_size = v9fs_string_size(name);
+
+ g_assert_cmpint(body_size, <=, UINT32_MAX - string_size);
+ body_size += string_size;
+
+ req = v9fs_req_init(v9p, body_size, P9_TMKDIR, tag);
+ v9fs_uint32_write(req, dfid);
+ v9fs_string_write(req, name);
+ v9fs_uint32_write(req, mode);
+ v9fs_uint32_write(req, gid);
+ v9fs_req_send(req);
+ return req;
+}
+
+/* size[4] Rmkdir tag[2] qid[13] */
+static void v9fs_rmkdir(P9Req *req, v9fs_qid *qid)
+{
+ v9fs_req_recv(req, P9_RMKDIR);
+ if (qid) {
+ v9fs_memread(req, qid, 13);
+ } else {
+ v9fs_memskip(req, 13);
+ }
+ v9fs_req_free(req);
+}
+
/* basic readdir test where reply fits into a single response message */
static void fs_readdir(void *obj, void *data, QGuestAllocator *t_alloc)
{
@@ -879,6 +969,30 @@ static void fs_flush_ignored(void *obj, void *data, QGuestAllocator *t_alloc)
g_free(wnames[0]);
}
+static void fs_mkdir(void *obj, void *data, QGuestAllocator *t_alloc,
+ const char *path, const char *cname)
+{
+ QVirtio9P *v9p = obj;
+ alloc = t_alloc;
+ char **wnames;
+ char *const name = g_strdup(cname);
+ P9Req *req;
+ const uint32_t fid = genfid();
+
+ int nwnames = split(path, "/", &wnames);
+
+ req = v9fs_twalk(v9p, 0, fid, nwnames, wnames, 0);
+ v9fs_req_wait_for_reply(req, NULL);
+ v9fs_rwalk(req, NULL, NULL);
+
+ req = v9fs_tmkdir(v9p, fid, name, 0750, 0, 0);
+ v9fs_req_wait_for_reply(req, NULL);
+ v9fs_rmkdir(req, NULL);
+
+ g_free(name);
+ split_free(&wnames);
+}
+
static void fs_readdir_split_128(void *obj, void *data,
QGuestAllocator *t_alloc)
{
@@ -897,6 +1011,31 @@ static void fs_readdir_split_512(void *obj, void *data,
fs_readdir_split(obj, data, t_alloc, 512);
}
+
+/* tests using the 9pfs 'local' fs driver */
+
+static void fs_create_dir(void *obj, void *data, QGuestAllocator *t_alloc)
+{
+ QVirtio9P *v9p = obj;
+ struct stat st;
+ char *root_path = virtio_9p_test_path("");
+ char *new_dir = virtio_9p_test_path("01");
+
+ g_assert(root_path != NULL);
+
+ fs_attach(v9p, NULL, t_alloc);
+ fs_mkdir(v9p, data, t_alloc, "/", "01");
+
+ /* check if created directory really exists now ... */
+ g_assert(stat(new_dir, &st) == 0);
+ /* ... and is actually a directory */
+ g_assert((st.st_mode & S_IFMT) == S_IFDIR);
+
+ g_free(new_dir);
+ g_free(root_path);
+}
+
+
static void register_virtio_9p_test(void)
{
/* selects the 9pfs 'synth' filesystem driver for the respective test */
@@ -926,6 +1065,7 @@ static void register_virtio_9p_test(void)
const char *local_driver = "virtio-9p-local";
qos_add_test("config", local_driver, pci_config, NULL);
+ qos_add_test("fs/create_dir", local_driver, fs_create_dir, NULL);
}
libqos_init(register_virtio_9p_test);
This test case uses the 9pfs 'local' driver to create a directory and then checks if the expected directory was actually created on host side. Signed-off-by: Christian Schoenebeck <qemu_oss@crudebyte.com> --- tests/qtest/virtio-9p-test.c | 140 +++++++++++++++++++++++++++++++++++ 1 file changed, 140 insertions(+)