/*!
* Handle commands to toggle the state of the Hypervisor
* (between paused and running).
*
* \param sub \ref subcommand.
* \param config \ref cc_oci_config.
* \param argc Argument count.
* \param argv Argument vector.
* \param pause If \c true, pause the VM, else resume it.
*
* \return \c true on success, else \c false.
*/
gboolean
handle_command_toggle (const struct subcommand *sub,
struct cc_oci_config *config,
int argc, char *argv[], gboolean pause)
{
struct oci_state *state = NULL;
gchar *config_file = NULL;
gboolean ret;
const gchar *action;
g_assert (sub);
g_assert (config);
action = pause ? "pause" : "resume";
if (handle_default_usage (argc, argv, sub->name,
&ret, 1, NULL)) {
return ret;
}
/* Used to allow us to find the state file */
config->optarg_container_id = argv[0];
ret = cc_oci_get_config_and_state (&config_file, config, &state);
if (! ret) {
goto out;
}
/* Transfer certain state elements to config to allow the state *
* file to be rewritten with full details.
*/
if (! cc_oci_config_update (config, state)) {
goto out;
}
ret = cc_oci_toggle (config, state, pause);
if (! ret) {
goto out;
}
ret = true;
g_print ("%sd container %s\n", action,
config->optarg_container_id);
out:
g_free_if_set (config_file);
cc_oci_state_free (state);
if (! ret) {
g_critical ("failed to %s container %s\n",
action, config->optarg_container_id);
}
return ret;
}
/*!
* Determine the containers config file, its configuration
* and state.
*
* \param[out] config_file Dynamically-allocated path to containers
* config file.
* \param[out] config \ref cc_oci_config.
* \param[out] state \ref oci_state.
*
* \note Used by the "stop" command.
*
* \return \c true on success, else \c false.
*/
gboolean
cc_oci_get_config_and_state (gchar **config_file,
struct cc_oci_config *config,
struct oci_state **state)
{
if ((!config_file) || (!config) || (!state)) {
return false;
}
if (! cc_oci_runtime_path_get (config)) {
return false;
}
if (! cc_oci_state_file_get (config)) {
return false;
}
*state = cc_oci_state_file_read (config->state.state_file_path);
if (! (*state)) {
g_critical("failed to read state file for container %s",
config->optarg_container_id);
goto err;
}
/* Fill in further details to make the config valid */
config->bundle_path = g_strdup ((*state)->bundle_path);
config->state.workload_pid = (*state)->pid;
config->state.status = (*state)->status;
g_strlcpy (config->state.comms_path, (*state)->comms_path,
sizeof (config->state.comms_path));
g_strlcpy (config->state.procsock_path,
(*state)->procsock_path,
sizeof (config->state.procsock_path));
*config_file = cc_oci_config_file_path ((*state)->bundle_path);
if (! (*config_file)) {
goto err;
}
return true;
err:
cc_oci_state_free (*state);
g_free_if_set (*config_file);
return false;
}
} END_TEST
START_TEST(test_cc_oci_state_free) {
struct oci_state *state = g_new0 (struct oci_state, 1);
ck_assert(state);
state->bundle_path = g_strdup("bundle_path");
state->comms_path = g_strdup("comms_path");
state->procsock_path = g_strdup("procsock_path");
state->id = g_strdup("id");
state->oci_version = g_strdup("oci_version");
state->mounts = g_slist_append(state->mounts, g_new0(struct cc_oci_mount, 1));
state->annotations = g_slist_append(state->annotations, g_new0(struct oci_cfg_annotation, 1));
/* memory leaks will be detected by valgrind */
cc_oci_state_free(state);
} END_TEST
/*!
* Handle commands to stop the Hypervisor cleanly.
*
* \param sub \ref subcommand.
* \param config \ref cc_oci_config.
* \param argc Argument count.
* \param argv Argument vector.
*
* \return \c true on success, else \c false.
*/
gboolean
handle_command_stop (const struct subcommand *sub,
struct cc_oci_config *config,
int argc, char *argv[])
{
struct oci_state *state = NULL;
gchar *config_file = NULL;
gboolean ret;
GNode* root = NULL;
g_assert (sub);
g_assert (config);
if (handle_default_usage (argc, argv, sub->name,
&ret, 1, NULL)) {
return ret;
}
/* Used to allow us to find the state file */
config->optarg_container_id = argv[0];
/* FIXME: deal with containerd calling "delete" twice */
if (! cc_oci_state_file_exists (config)) {
g_warning ("state file does not exist for container %s",
config->optarg_container_id);
/* don't make this fatal to keep containerd happy */
ret = true;
goto out;
}
ret = cc_oci_get_config_and_state (&config_file, config, &state);
if (! ret) {
goto out;
}
/* convert json file to GNode */
if (! cc_oci_json_parse(&root, config_file)) {
goto out;
}
#ifdef DEBUG
/* show json file converted to GNode */
cc_oci_node_dump(root);
#endif /*DEBUG*/
if (! cc_oci_process_config(root, config, stop_spec_handlers)) {
g_critical ("failed to process config");
goto out;
}
g_free_node(root);
ret = cc_oci_stop (config, state);
if (! ret) {
goto out;
}
ret = true;
g_print ("stopped container %s\n", config->optarg_container_id);
out:
g_free_if_set (config_file);
cc_oci_state_free (state);
if (! ret) {
g_critical ("failed to stop container %s\n",
config->optarg_container_id);
}
return ret;
}
} END_TEST
START_TEST(test_cc_oci_state_file_read) {
struct oci_state *state = NULL;
/* Needs:
*
* - ociVersion
* - id
* - pid
* - bundlePath
* - commsPath
* - processPath
* - status
*/
ck_assert(! cc_oci_state_file_read(NULL));
ck_assert(! cc_oci_state_file_read("/abc/123/xyz"));
ck_assert(! cc_oci_state_file_read(TEST_DATA_DIR
"/state-no-bundlePath.json"));
ck_assert(! cc_oci_state_file_read(TEST_DATA_DIR
"/state-no-ociVersion.json"));
ck_assert(! cc_oci_state_file_read(TEST_DATA_DIR
"/state-no-id.json"));
ck_assert(! cc_oci_state_file_read(TEST_DATA_DIR
"/state-no-commsPath.json"));
ck_assert(! cc_oci_state_file_read(TEST_DATA_DIR
"/state-no-processPath.json"));
ck_assert(! cc_oci_state_file_read(TEST_DATA_DIR
"/state-no-console.json"));
ck_assert(! cc_oci_state_file_read(TEST_DATA_DIR
"/state-no-console-path.json"));
ck_assert(! cc_oci_state_file_read(TEST_DATA_DIR
"/state-no-console-socket.json"));
ck_assert(! cc_oci_state_file_read(TEST_DATA_DIR
"/state-no-vm-object.json"));
/* Annotations are optional*/
state = cc_oci_state_file_read(TEST_DATA_DIR
"/state-no-annotations.json");
ck_assert (state);
cc_oci_state_free (state);
/* Mounts are optional */
state = cc_oci_state_file_read(TEST_DATA_DIR
"/state-no-mounts.json");
ck_assert (state);
cc_oci_state_free (state);
state = cc_oci_state_file_read(TEST_DATA_DIR
"/state-mounts-no-mount-destination.json");
ck_assert (state);
cc_oci_state_free (state);
state = cc_oci_state_file_read(TEST_DATA_DIR
"/state-mounts-no-mount-directory_created.json");
ck_assert (state);
cc_oci_state_free (state);
state = cc_oci_state_file_read(TEST_DATA_DIR "/state.json");
ck_assert(state);
ck_assert(state->oci_version);
ck_assert(state->id);
ck_assert(state->pid);
ck_assert(state->bundle_path);
ck_assert(state->comms_path);
ck_assert(state->procsock_path);
ck_assert(state->status);
ck_assert(state->annotations);
cc_oci_state_free(state);
} END_TEST
