static char *
get_first_instance(const gchar * job, int timeout)
{
char *instance = NULL;
const char *method = "GetAllInstances";
DBusError error;
DBusMessage *msg;
DBusMessage *reply;
DBusMessageIter args;
DBusMessageIter unit;
dbus_error_init(&error);
msg = dbus_message_new_method_call(BUS_NAME, // target for the method call
job, // object to call on
UPSTART_JOB_IFACE, // interface to call on
method); // method name
CRM_ASSERT(msg != NULL);
dbus_message_append_args(msg, DBUS_TYPE_INVALID);
reply = pcmk_dbus_send_recv(msg, upstart_proxy, &error, timeout);
dbus_message_unref(msg);
if (dbus_error_is_set(&error)) {
crm_err("Call to %s failed: %s", method, error.message);
dbus_error_free(&error);
goto done;
} else if(reply == NULL) {
crm_err("Call to %s failed: no reply", method);
goto done;
} else if (!dbus_message_iter_init(reply, &args)) {
crm_err("Call to %s failed: Message has no arguments", method);
goto done;
}
if(!pcmk_dbus_type_check(reply, &args, DBUS_TYPE_ARRAY, __FUNCTION__, __LINE__)) {
crm_err("Call to %s failed: Message has invalid arguments", method);
goto done;
}
dbus_message_iter_recurse(&args, &unit);
if(pcmk_dbus_type_check(reply, &unit, DBUS_TYPE_OBJECT_PATH, __FUNCTION__, __LINE__)) {
DBusBasicValue value;
dbus_message_iter_get_basic(&unit, &value);
if(value.str) {
instance = strdup(value.str);
crm_trace("Result: %s", instance);
}
}
done:
if(reply) {
dbus_message_unref(reply);
}
return instance;
}
static void
systemd_exec_result(DBusMessage *reply, svc_action_t *op)
{
DBusError error;
if(pcmk_dbus_find_error(op->action, (void*)&error, reply, &error)) {
/* ignore "already started" or "not running" errors */
if (!systemd_mask_error(op, error.name)) {
crm_err("Could not issue %s for %s: %s (%s)", op->action, op->rsc, error.message);
}
} else {
if(!pcmk_dbus_type_check(reply, NULL, DBUS_TYPE_OBJECT_PATH, __FUNCTION__, __LINE__)) {
crm_warn("Call to %s passed but return type was unexpected", op->action);
op->rc = PCMK_OCF_OK;
} else {
const char *path = NULL;
dbus_message_get_args (reply, NULL,
DBUS_TYPE_OBJECT_PATH, &path,
DBUS_TYPE_INVALID);
crm_info("Call to %s passed: %s", op->action, path);
op->rc = PCMK_OCF_OK;
}
}
operation_finalize(op);
}
static const char *
systemd_loadunit_result(DBusMessage *reply, svc_action_t * op)
{
const char *path = NULL;
DBusError error;
if(pcmk_dbus_find_error("LoadUnit", (void*)&path, reply, &error)) {
if(op && !systemd_mask_error(op, error.name)) {
crm_err("Could not find unit %s for %s: LoadUnit error '%s'",
op->agent, op->id, error.name);
}
} else if(pcmk_dbus_type_check(reply, NULL, DBUS_TYPE_OBJECT_PATH, __FUNCTION__, __LINE__)) {
dbus_message_get_args (reply, NULL,
DBUS_TYPE_OBJECT_PATH, &path,
DBUS_TYPE_INVALID);
}
if(op) {
if (path) {
systemd_unit_exec_with_unit(op, path);
} else if (op->synchronous == FALSE) {
operation_finalize(op);
}
}
return path;
}
static gboolean
upstart_job_by_name(const gchar * arg_name, gchar ** out_unit, int timeout)
{
/*
com.ubuntu.Upstart0_6.GetJobByName (in String name, out ObjectPath job)
*/
DBusError error;
DBusMessage *msg;
DBusMessage *reply = NULL;
const char *method = "GetJobByName";
if(upstart_init() == FALSE) {
return FALSE;
}
msg = dbus_message_new_method_call(BUS_NAME, // target for the method call
BUS_PATH, // object to call on
UPSTART_06_API, // interface to call on
method); // method name
dbus_error_init(&error);
CRM_LOG_ASSERT(dbus_message_append_args(msg, DBUS_TYPE_STRING, &arg_name, DBUS_TYPE_INVALID));
reply = pcmk_dbus_send_recv(msg, upstart_proxy, &error, timeout);
dbus_message_unref(msg);
if(error.name) {
/* ignore "already started" or "not running" errors */
crm_err("Could not issue %s for %s: %s", method, arg_name, error.name);
} else if(!pcmk_dbus_type_check(reply, NULL, DBUS_TYPE_OBJECT_PATH, __FUNCTION__, __LINE__)) {
crm_err("Invalid return type for %s", method);
} else {
if(out_unit) {
char *path = NULL;
dbus_message_get_args (reply, NULL,
DBUS_TYPE_OBJECT_PATH, &path,
DBUS_TYPE_INVALID);
*out_unit = strdup(path);
}
dbus_message_unref(reply);
return TRUE;
}
if(reply) {
dbus_message_unref(reply);
}
return FALSE;
}
static void
upstart_async_dispatch(DBusPendingCall *pending, void *user_data)
{
DBusError error;
DBusMessage *reply = NULL;
svc_action_t *op = user_data;
dbus_error_init(&error);
if(pending) {
reply = dbus_pending_call_steal_reply(pending);
}
if (pcmk_dbus_find_error(pending, reply, &error)) {
/* ignore "already started" or "not running" errors */
if (!upstart_mask_error(op, error.name)) {
crm_err("%s for %s: %s", op->action, op->rsc, error.message);
}
dbus_error_free(&error);
} else if (!g_strcmp0(op->action, "stop")) {
/* No return vaue */
op->rc = PCMK_OCF_OK;
} else {
if(!pcmk_dbus_type_check(reply, NULL, DBUS_TYPE_OBJECT_PATH, __FUNCTION__, __LINE__)) {
crm_warn("Call to %s passed but return type was unexpected", op->action);
op->rc = PCMK_OCF_OK;
} else {
const char *path = NULL;
dbus_message_get_args (reply, NULL,
DBUS_TYPE_OBJECT_PATH, &path,
DBUS_TYPE_INVALID);
crm_info("Call to %s passed: %s", op->action, path);
op->rc = PCMK_OCF_OK;
}
}
CRM_LOG_ASSERT(pending == op->opaque->pending);
services_set_op_pending(op, NULL);
operation_finalize(op);
if(reply) {
dbus_message_unref(reply);
}
}
static const char *
systemd_loadunit_result(DBusMessage *reply, svc_action_t * op)
{
const char *path = NULL;
if(pcmk_dbus_find_error("LoadUnit", (void*)&path, reply, NULL)) {
if(op) {
crm_warn("No unit found for %s", op->rsc);
}
} else if(pcmk_dbus_type_check(reply, NULL, DBUS_TYPE_OBJECT_PATH, __FUNCTION__, __LINE__)) {
dbus_message_get_args (reply, NULL,
DBUS_TYPE_OBJECT_PATH, &path,
DBUS_TYPE_INVALID);
}
if(op) {
systemd_unit_exec_with_unit(op, path);
}
return path;
}
GList *
systemd_unit_listall(void)
{
int lpc = 0;
GList *units = NULL;
DBusMessageIter args;
DBusMessageIter unit;
DBusMessageIter elem;
DBusMessage *msg = NULL;
DBusMessage *reply = NULL;
const char *method = "ListUnits";
DBusError error;
if (systemd_init() == FALSE) {
return NULL;
}
/*
" <method name=\"ListUnits\">\n" \
" <arg name=\"units\" type=\"a(ssssssouso)\" direction=\"out\"/>\n" \
" </method>\n" \
*/
dbus_error_init(&error);
msg = systemd_new_method(BUS_NAME".Manager", method);
CRM_ASSERT(msg != NULL);
reply = pcmk_dbus_send_recv(msg, systemd_proxy, &error, DBUS_TIMEOUT_USE_DEFAULT);
dbus_message_unref(msg);
if(error.name) {
crm_err("Call to %s failed: %s", method, error.name);
return NULL;
} else if (reply == NULL) {
crm_err("Call to %s failed: Message has no reply", method);
return NULL;
} else if (!dbus_message_iter_init(reply, &args)) {
crm_err("Call to %s failed: Message has no arguments", method);
dbus_message_unref(reply);
return NULL;
}
if(!pcmk_dbus_type_check(reply, &args, DBUS_TYPE_ARRAY, __FUNCTION__, __LINE__)) {
crm_err("Call to %s failed: Message has invalid arguments", method);
dbus_message_unref(reply);
return NULL;
}
dbus_message_iter_recurse(&args, &unit);
while (dbus_message_iter_get_arg_type (&unit) != DBUS_TYPE_INVALID) {
DBusBasicValue value;
if(!pcmk_dbus_type_check(reply, &unit, DBUS_TYPE_STRUCT, __FUNCTION__, __LINE__)) {
continue;
}
dbus_message_iter_recurse(&unit, &elem);
if(!pcmk_dbus_type_check(reply, &elem, DBUS_TYPE_STRING, __FUNCTION__, __LINE__)) {
continue;
}
dbus_message_iter_get_basic(&elem, &value);
crm_trace("Got: %s", value.str);
if(value.str) {
char *match = strstr(value.str, ".service");
if (match) {
lpc++;
match[0] = 0;
units = g_list_append(units, strdup(value.str));
}
}
dbus_message_iter_next (&unit);
}
dbus_message_unref(reply);
crm_trace("Found %d systemd services", lpc);
return units;
}
/* For a synchronous 'op', returns FALSE if 'op' fails */
gboolean
upstart_job_exec(svc_action_t * op, gboolean synchronous)
{
char *job = NULL;
int arg_wait = TRUE;
const char *arg_env = "pacemaker=1";
const char *action = op->action;
DBusError error;
DBusMessage *msg = NULL;
DBusMessage *reply = NULL;
DBusMessageIter iter, array_iter;
op->rc = PCMK_OCF_UNKNOWN_ERROR;
CRM_ASSERT(upstart_init());
if (safe_str_eq(op->action, "meta-data")) {
op->stdout_data = upstart_job_metadata(op->agent);
op->rc = PCMK_OCF_OK;
goto cleanup;
}
if(!upstart_job_by_name(op->agent, &job, op->timeout)) {
crm_debug("Could not obtain job named '%s' to %s", op->agent, action);
if (!g_strcmp0(action, "stop")) {
op->rc = PCMK_OCF_OK;
} else {
op->rc = PCMK_OCF_NOT_INSTALLED;
op->status = PCMK_LRM_OP_NOT_INSTALLED;
}
goto cleanup;
}
if (safe_str_eq(op->action, "monitor") || safe_str_eq(action, "status")) {
char *path = get_first_instance(job, op->timeout);
op->rc = PCMK_OCF_NOT_RUNNING;
if(path) {
DBusPendingCall *pending = NULL;
char *state = pcmk_dbus_get_property(
upstart_proxy, BUS_NAME, path, UPSTART_06_API ".Instance", "state",
op->synchronous?NULL:upstart_job_check, op,
op->synchronous?NULL:&pending, op->timeout);
free(job);
free(path);
if(op->synchronous) {
upstart_job_check("state", state, op);
free(state);
return op->rc == PCMK_OCF_OK;
} else if (pending) {
services_set_op_pending(op, pending);
services_add_inflight_op(op);
return TRUE;
}
return FALSE;
}
goto cleanup;
} else if (!g_strcmp0(action, "start")) {
action = "Start";
} else if (!g_strcmp0(action, "stop")) {
action = "Stop";
} else if (!g_strcmp0(action, "restart")) {
action = "Restart";
} else {
op->rc = PCMK_OCF_UNIMPLEMENT_FEATURE;
goto cleanup;
}
crm_debug("Calling %s for %s on %s", action, op->rsc, job);
msg = dbus_message_new_method_call(BUS_NAME, // target for the method call
job, // object to call on
UPSTART_JOB_IFACE, // interface to call on
action); // method name
CRM_ASSERT(msg != NULL);
dbus_message_iter_init_append (msg, &iter);
CRM_LOG_ASSERT(dbus_message_iter_open_container (&iter,
DBUS_TYPE_ARRAY,
DBUS_TYPE_STRING_AS_STRING,
&array_iter));
CRM_LOG_ASSERT(dbus_message_iter_append_basic (&array_iter, DBUS_TYPE_STRING, &arg_env));
CRM_LOG_ASSERT(dbus_message_iter_close_container (&iter, &array_iter));
CRM_LOG_ASSERT(dbus_message_append_args(msg, DBUS_TYPE_BOOLEAN, &arg_wait, DBUS_TYPE_INVALID));
if (op->synchronous == FALSE) {
DBusPendingCall* pending = pcmk_dbus_send(msg, upstart_proxy, upstart_async_dispatch, op, op->timeout);
free(job);
if(pending) {
services_set_op_pending(op, pending);
services_add_inflight_op(op);
return TRUE;
}
return FALSE;
}
dbus_error_init(&error);
reply = pcmk_dbus_send_recv(msg, upstart_proxy, &error, op->timeout);
if(error.name) {
if(!upstart_mask_error(op, error.name)) {
crm_err("Could not issue %s for %s: %s (%s)", action, op->rsc, error.name, job);
}
} else if (!g_strcmp0(op->action, "stop")) {
/* No return vaue */
op->rc = PCMK_OCF_OK;
} else if(!pcmk_dbus_type_check(reply, NULL, DBUS_TYPE_OBJECT_PATH, __FUNCTION__, __LINE__)) {
crm_warn("Call to %s passed but return type was unexpected", op->action);
op->rc = PCMK_OCF_OK;
} else {
const char *path = NULL;
dbus_message_get_args (reply, NULL,
DBUS_TYPE_OBJECT_PATH, &path,
DBUS_TYPE_INVALID);
crm_info("Call to %s passed: %s", op->action, path);
op->rc = PCMK_OCF_OK;
}
cleanup:
free(job);
if(msg) {
dbus_message_unref(msg);
}
if(reply) {
dbus_message_unref(reply);
}
if (op->synchronous == FALSE) {
return operation_finalize(op);
}
return op->rc == PCMK_OCF_OK;
}
GList *
upstart_job_listall(void)
{
GList *units = NULL;
DBusMessageIter args;
DBusMessageIter unit;
DBusMessage *msg = NULL;
DBusMessage *reply = NULL;
const char *method = "GetAllJobs";
DBusError error;
int lpc = 0;
if (upstart_init() == FALSE) {
return NULL;
}
/*
com.ubuntu.Upstart0_6.GetAllJobs (out <Array of ObjectPath> jobs)
*/
dbus_error_init(&error);
msg = dbus_message_new_method_call(BUS_NAME, // target for the method call
BUS_PATH, // object to call on
UPSTART_06_API, // interface to call on
method); // method name
CRM_ASSERT(msg != NULL);
reply = pcmk_dbus_send_recv(msg, upstart_proxy, &error, DBUS_TIMEOUT_USE_DEFAULT);
dbus_message_unref(msg);
if(error.name) {
crm_err("Call to %s failed: %s", method, error.name);
return NULL;
} else if (!dbus_message_iter_init(reply, &args)) {
crm_err("Call to %s failed: Message has no arguments", method);
dbus_message_unref(reply);
return NULL;
}
if(!pcmk_dbus_type_check(reply, &args, DBUS_TYPE_ARRAY, __FUNCTION__, __LINE__)) {
crm_err("Call to %s failed: Message has invalid arguments", method);
dbus_message_unref(reply);
return NULL;
}
dbus_message_iter_recurse(&args, &unit);
while (dbus_message_iter_get_arg_type (&unit) != DBUS_TYPE_INVALID) {
DBusBasicValue value;
const char *job = NULL;
char *path = NULL;
if(!pcmk_dbus_type_check(reply, &unit, DBUS_TYPE_OBJECT_PATH, __FUNCTION__, __LINE__)) {
continue;
}
dbus_message_iter_get_basic(&unit, &value);
if(value.str) {
int llpc = 0;
path = value.str;
job = value.str;
while (path[llpc] != 0) {
if (path[llpc] == '/') {
job = path + llpc + 1;
}
llpc++;
}
lpc++;
crm_trace("%s -> %s\n", path, job);
units = g_list_append(units, fix_upstart_name(job));
}
dbus_message_iter_next (&unit);
}
dbus_message_unref(reply);
crm_trace("Found %d upstart jobs", lpc);
return units;
}
GList *
systemd_unit_listall(void)
{
int lpc = 0;
GList *units = NULL;
DBusMessageIter args;
DBusMessageIter unit;
DBusMessageIter elem;
DBusMessage *reply = NULL;
if (systemd_init() == FALSE) {
return NULL;
}
/*
" <method name=\"ListUnits\">\n" \
" <arg name=\"units\" type=\"a(ssssssouso)\" direction=\"out\"/>\n" \
" </method>\n" \
*/
reply = systemd_call_simple_method("ListUnits");
if (reply == NULL) {
return NULL;
}
if (!dbus_message_iter_init(reply, &args)) {
crm_err("Could not list systemd units: systemd reply has no arguments");
dbus_message_unref(reply);
return NULL;
}
if (!pcmk_dbus_type_check(reply, &args, DBUS_TYPE_ARRAY,
__FUNCTION__, __LINE__)) {
crm_err("Could not list systemd units: systemd reply has invalid arguments");
dbus_message_unref(reply);
return NULL;
}
dbus_message_iter_recurse(&args, &unit);
while (dbus_message_iter_get_arg_type (&unit) != DBUS_TYPE_INVALID) {
DBusBasicValue value;
if(!pcmk_dbus_type_check(reply, &unit, DBUS_TYPE_STRUCT, __FUNCTION__, __LINE__)) {
continue;
}
dbus_message_iter_recurse(&unit, &elem);
if(!pcmk_dbus_type_check(reply, &elem, DBUS_TYPE_STRING, __FUNCTION__, __LINE__)) {
continue;
}
dbus_message_iter_get_basic(&elem, &value);
crm_trace("DBus ListUnits listed: %s", value.str);
if(value.str) {
const char *match = systemd_unit_extension(value.str);
if (match) {
char *unit_name;
if (!strcmp(match, ".service")) {
/* service is the "default" unit type, so strip it */
unit_name = strndup(value.str, match - value.str);
} else {
unit_name = strdup(value.str);
}
lpc++;
units = g_list_append(units, unit_name);
}
}
dbus_message_iter_next (&unit);
}
dbus_message_unref(reply);
crm_trace("Found %d systemd services", lpc);
return units;
}
GList *
systemd_unit_listall(void)
{
int nfiles = 0;
GList *units = NULL;
DBusMessageIter args;
DBusMessageIter unit;
DBusMessageIter elem;
DBusMessage *reply = NULL;
if (systemd_init() == FALSE) {
return NULL;
}
/*
" <method name=\"ListUnitFiles\">\n" \
" <arg name=\"files\" type=\"a(ss)\" direction=\"out\"/>\n" \
" </method>\n" \
*/
reply = systemd_call_simple_method("ListUnitFiles");
if (reply == NULL) {
return NULL;
}
if (!dbus_message_iter_init(reply, &args)) {
crm_err("Could not list systemd unit files: systemd reply has no arguments");
dbus_message_unref(reply);
return NULL;
}
if (!pcmk_dbus_type_check(reply, &args, DBUS_TYPE_ARRAY,
__FUNCTION__, __LINE__)) {
crm_err("Could not list systemd unit files: systemd reply has invalid arguments");
dbus_message_unref(reply);
return NULL;
}
dbus_message_iter_recurse(&args, &unit);
for (; dbus_message_iter_get_arg_type(&unit) != DBUS_TYPE_INVALID;
dbus_message_iter_next(&unit)) {
DBusBasicValue value;
const char *match = NULL;
char *unit_name = NULL;
char *basename = NULL;
if(!pcmk_dbus_type_check(reply, &unit, DBUS_TYPE_STRUCT, __FUNCTION__, __LINE__)) {
crm_debug("ListUnitFiles reply has unexpected type");
continue;
}
dbus_message_iter_recurse(&unit, &elem);
if(!pcmk_dbus_type_check(reply, &elem, DBUS_TYPE_STRING, __FUNCTION__, __LINE__)) {
crm_debug("ListUnitFiles reply does not contain a string");
continue;
}
dbus_message_iter_get_basic(&elem, &value);
if (value.str == NULL) {
crm_debug("ListUnitFiles reply did not provide a string");
continue;
}
crm_trace("DBus ListUnitFiles listed: %s", value.str);
match = systemd_unit_extension(value.str);
if (match == NULL) {
// Unit files always have an extension, so skip if not present
crm_debug("ListUnitFiles entry '%s' does not have an extension",
value.str);
continue;
}
// ListUnitFiles returns full path names
basename = strrchr(value.str, '/');
if (basename) {
basename = basename + 1;
} else {
basename = value.str;
}
/* Unit files will include types (such as .target) that we can't manage,
* so filter the replies here.
*/
if (!strcmp(match, ".service")) {
// Service is the "default" unit type, so strip it
unit_name = strndup(basename, match - basename);
} else if (!strcmp(match, ".mount")
|| !strcmp(match, ".socket")) {
unit_name = strdup(basename);
}
if (unit_name == NULL) {
crm_trace("ListUnitFiles entry '%s' is not manageable",
value.str);
continue;
}
nfiles++;
units = g_list_prepend(units, unit_name);
}
dbus_message_unref(reply);
crm_trace("Found %d manageable systemd unit files", nfiles);
units = g_list_sort(units, crm_alpha_sort);
return units;
}
static char *
pcmk_dbus_lookup_result(DBusMessage *reply, struct db_getall_data *data)
{
DBusError error;
char *output = NULL;
DBusMessageIter dict;
DBusMessageIter args;
if(pcmk_dbus_find_error("GetAll", (void*)&error, reply, &error)) {
crm_err("Cannot get properties from %s for %s", data->target, data->object);
goto cleanup;
}
dbus_message_iter_init(reply, &args);
if(!pcmk_dbus_type_check(reply, &args, DBUS_TYPE_ARRAY, __FUNCTION__, __LINE__)) {
crm_err("Invalid reply from %s for %s", data->target, data->object);
goto cleanup;
}
dbus_message_iter_recurse(&args, &dict);
while (dbus_message_iter_get_arg_type (&dict) != DBUS_TYPE_INVALID) {
DBusMessageIter sv;
DBusMessageIter v;
DBusBasicValue name;
DBusBasicValue value;
if(!pcmk_dbus_type_check(reply, &dict, DBUS_TYPE_DICT_ENTRY, __FUNCTION__, __LINE__)) {
dbus_message_iter_next (&dict);
continue;
}
dbus_message_iter_recurse(&dict, &sv);
while (dbus_message_iter_get_arg_type (&sv) != DBUS_TYPE_INVALID) {
int dtype = dbus_message_iter_get_arg_type(&sv);
switch(dtype) {
case DBUS_TYPE_STRING:
dbus_message_iter_get_basic(&sv, &name);
if(data->name && strcmp(name.str, data->name) != 0) {
dbus_message_iter_next (&sv); /* Skip the value */
}
break;
case DBUS_TYPE_VARIANT:
dbus_message_iter_recurse(&sv, &v);
if(pcmk_dbus_type_check(reply, &v, DBUS_TYPE_STRING, __FUNCTION__, __LINE__)) {
dbus_message_iter_get_basic(&v, &value);
crm_trace("Property %s[%s] is '%s'", data->object, name.str, value.str);
if(data->callback) {
data->callback(name.str, value.str, data->userdata);
} else {
output = strdup(value.str);
}
if(data->name) {
goto cleanup;
}
}
break;
default:
pcmk_dbus_type_check(reply, &sv, DBUS_TYPE_STRING, __FUNCTION__, __LINE__);
}
dbus_message_iter_next (&sv);
}
dbus_message_iter_next (&dict);
}
if(data->name && data->callback) {
crm_trace("No value for property %s[%s]", data->object, data->name);
data->callback(data->name, NULL, data->userdata);
}
cleanup:
free(data->target);
free(data->object);
free(data->name);
free(data);
return output;
}
