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/*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* File: raexecupstart.c
* Copyright (C) 2010 Senko Rasic <senko.rasic@dobarkod.hr>
* Copyright (c) 2010 Ante Karamatic <ivoks@init.hr>
*
* Heavily based on raexeclsb.c and raexechb.c:
* Author: Sun Jiang Dong <sunjd@cn.ibm.com>
* Copyright (c) 2004 International Business Machines
*
* This code implements the Resource Agent Plugin Module for Upstart.
* It's a part of Local Resource Manager. Currently it's used by lrmd only.
*/
#define PIL_PLUGINTYPE RA_EXEC_TYPE
#define PIL_PLUGIN upstart
#define PIL_PLUGINTYPE_S "RAExec"
#define PIL_PLUGIN_S "upstart"
#define PIL_PLUGINLICENSE LICENSE_PUBDOM
#define PIL_PLUGINLICENSEURL URL_PUBDOM
#include <lha_internal.h>
#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include <stdlib.h>
#include <sys/types.h>
#include <sys/wait.h>
#include <sys/stat.h>
#include <errno.h>
#include <dirent.h>
#include <libgen.h> /* Add it for compiling on OSX */
#include <glib.h>
#include <clplumbing/cl_log.h>
#include <pils/plugin.h>
#include <lrm/raexec.h>
#include <libgen.h>
#include <glib-object.h>
#include <libxml/entities.h>
#include "upstart-dbus.h"
#define meta_data_template \
"<?xml version=\"1.0\"?>\n"\
"<!DOCTYPE resource-agent SYSTEM \"ra-api-1.dtd\">\n"\
"<resource-agent name=\"%s\" version=\"0.1\">\n"\
" <version>1.0</version>\n"\
" <longdesc lang=\"en\">\n"\
" %s"\
" </longdesc>\n"\
" <shortdesc lang=\"en\">%s</shortdesc>\n"\
" <parameters>\n"\
" </parameters>\n"\
" <actions>\n"\
" <action name=\"start\" timeout=\"15\" />\n"\
" <action name=\"stop\" timeout=\"15\" />\n"\
" <action name=\"status\" timeout=\"15\" />\n"\
" <action name=\"restart\" timeout=\"15\" />\n"\
" <action name=\"monitor\" timeout=\"15\" interval=\"15\" start-delay=\"15\" />\n"\
" <action name=\"meta-data\" timeout=\"5\" />\n"\
" </actions>\n"\
" <special tag=\"upstart\">\n"\
" </special>\n"\
"</resource-agent>\n"
/* The begin of exported function list */
static int execra(const char * rsc_id,
const char * rsc_type,
const char * provider,
const char * op_type,
const int timeout,
GHashTable * params);
static uniform_ret_execra_t map_ra_retvalue(int ret_execra
, const char * op_type, const char * std_output);
static char* get_resource_meta(const char* rsc_type, const char* provider);
static int get_resource_list(GList ** rsc_info);
static int get_provider_list(const char* ra_type, GList ** providers);
/* The end of exported function list */
/* The begin of internal used function & data list */
#define MAX_PARAMETER_NUM 40
const int MAX_LENGTH_OF_RSCNAME = 40,
MAX_LENGTH_OF_OPNAME = 40;
typedef char * RA_ARGV[MAX_PARAMETER_NUM];
/* The end of internal function & data list */
/* Rource agent execution plugin operations */
static struct RAExecOps raops =
{ execra,
map_ra_retvalue,
get_resource_list,
get_provider_list,
get_resource_meta
};
PIL_PLUGIN_BOILERPLATE2("1.0", Debug)
static const PILPluginImports* PluginImports;
static PILPlugin* OurPlugin;
static PILInterface* OurInterface;
static void* OurImports;
static void* interfprivate;
PIL_rc
PIL_PLUGIN_INIT(PILPlugin * us, const PILPluginImports* imports);
PIL_rc
PIL_PLUGIN_INIT(PILPlugin * us, const PILPluginImports* imports)
{
PluginImports = imports;
OurPlugin = us;
imports->register_plugin(us, &OurPIExports);
g_type_init ();
return imports->register_interface(us, PIL_PLUGINTYPE_S, PIL_PLUGIN_S,
&raops, NULL, &OurInterface, &OurImports,
interfprivate);
}
static int
execra( const char * rsc_id, const char * rsc_type, const char * provider,
const char * op_type, const int timeout, GHashTable * params)
{
UpstartJobCommand cmd;
if (!g_strcmp0(op_type, "meta-data")) {
printf("%s", get_resource_meta(rsc_type, provider));
exit(EXECRA_OK);
} else if (!g_strcmp0(op_type, "monitor") || !g_strcmp0(op_type, "status")) {
gboolean running = upstart_job_is_running (rsc_type);
printf("%s", running ? "running" : "stopped");
if (running)
exit(EXECRA_OK);
else
exit(EXECRA_NOT_RUNNING);
} else if (!g_strcmp0(op_type, "start")) {
cmd = UPSTART_JOB_START;
} else if (!g_strcmp0(op_type, "stop")) {
cmd = UPSTART_JOB_STOP;
} else if (!g_strcmp0(op_type, "restart")) {
cmd = UPSTART_JOB_RESTART;
} else {
exit(EXECRA_UNIMPLEMENT_FEATURE);
}
/* It'd be better if it returned GError, so we can distinguish
* between failure modes (can't contact upstart, no such job,
* or failure to do action. */
if (upstart_job_do(rsc_type, cmd, timeout)) {
exit(EXECRA_OK);
} else {
exit(EXECRA_NO_RA);
}
}
static uniform_ret_execra_t
map_ra_retvalue(int ret_execra, const char * op_type, const char * std_output)
{
/* no need to map anything, execra() returns correct exit code */
return ret_execra;
}
static int
get_resource_list(GList ** rsc_info)
{
gchar **jobs;
gint i;
*rsc_info = NULL;
jobs = upstart_get_all_jobs();
if (!jobs)
return 0;
for (i = 0; jobs[i] != NULL; i++) {
*rsc_info = g_list_prepend(*rsc_info, jobs[i]);
}
/* free the array, but not the strings */
g_free(jobs);
*rsc_info = g_list_reverse(*rsc_info);
return g_list_length(*rsc_info);
}
static char *
get_resource_meta (const gchar *rsc_type, const gchar *provider)
{
return g_strdup_printf(meta_data_template, rsc_type,
rsc_type, rsc_type);
}
static int
get_provider_list (const gchar *ra_type, GList **providers)
{
*providers = g_list_prepend(*providers, g_strdup("upstart"));
return g_list_length(*providers);
}
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