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/*-*- Mode: C; c-basic-offset: 8 -*-*/
#include <errno.h>
#include "name.h"
#include "service.h"
#include "load-fragment.h"
#include "load-dropin.h"
static int service_load_sysv(Service *s) {
assert(s);
/* Load service data from SysV init scripts, preferably with
* LSB headers ... */
return -ENOENT;
}
static int service_load(Name *n) {
int r;
Service *s = SERVICE(n);
assert(s);
exec_context_defaults(&s->exec_context);
/* Load a .service file */
r = name_load_fragment(n);
/* Load a classic init script as a fallback */
if (r == -ENOENT)
r = service_load_sysv(s);
if (r < 0)
return r;
/* Load dropin directory data */
if ((r = name_load_dropin(n)) < 0)
return r;
return 0;
}
static void service_dump(Name *n, FILE *f, const char *prefix) {
static const char* const state_table[_SERVICE_STATE_MAX] = {
[SERVICE_DEAD] = "dead",
[SERVICE_START_PRE] = "start-pre",
[SERVICE_START] = "start",
[SERVICE_START_POST] = "post",
[SERVICE_RUNNING] = "running",
[SERVICE_RELOAD_PRE] = "reload-pre",
[SERVICE_RELOAD] = "reload",
[SERVICE_RELOAD_POST] = "reload-post",
[SERVICE_STOP_PRE] = "stop-pre",
[SERVICE_STOP] = "stop",
[SERVICE_SIGTERM] = "sigterm",
[SERVICE_SIGKILL] = "sigkill",
[SERVICE_STOP_POST] = "stop-post",
[SERVICE_MAINTAINANCE] = "maintainance"
};
static const char* const command_table[_SERVICE_EXEC_MAX] = {
[SERVICE_EXEC_START_PRE] = "StartPre",
[SERVICE_EXEC_START] = "Start",
[SERVICE_EXEC_START_POST] = "StartPost",
[SERVICE_EXEC_RELOAD_PRE] = "ReloadPre",
[SERVICE_EXEC_RELOAD] = "Reload",
[SERVICE_EXEC_RELOAD_POST] = "ReloadPost",
[SERVICE_EXEC_STOP_PRE] = "StopPre",
[SERVICE_EXEC_STOP] = "Stop",
[SERVICE_EXEC_STOP_POST] = "StopPost",
};
ServiceExecCommand c;
Service *s = SERVICE(n);
assert(s);
fprintf(f,
"%sService State: %s\n",
prefix, state_table[s->state]);
exec_context_dump(&s->exec_context, f, prefix);
for (c = 0; c < _SERVICE_EXEC_MAX; c++) {
ExecCommand *i;
LIST_FOREACH(i, s->exec_command[c])
fprintf(f, "%s%s: %s\n", prefix, command_table[c], i->path);
}
}
static int service_set_state(Service *s, ServiceState state) {
assert(s);
s->state = state;
return 0;
}
static int service_start(Name *n) {
Service *s = SERVICE(n);
assert(s);
/* We cannot fulfill this request right now */
if (s->state == SERVICE_STOP_PRE ||
s->state == SERVICE_STOP ||
s->state == SERVICE_SIGTERM ||
s->state == SERVICE_SIGKILL ||
s->state == SERVICE_STOP_POST)
return -EAGAIN;
assert(s->state == SERVICE_DEAD || s->state == SERVICE_MAINTAINANCE);
return service_set_state(s, SERVICE_START_PRE);
}
static int service_stop(Name *n) {
Service *s = SERVICE(n);
assert(s);
return 0;
}
static int service_reload(Name *n) {
return 0;
}
static NameActiveState service_active_state(Name *n) {
static const NameActiveState table[_SERVICE_STATE_MAX] = {
[SERVICE_DEAD] = NAME_INACTIVE,
[SERVICE_START_PRE] = NAME_ACTIVATING,
[SERVICE_START] = NAME_ACTIVATING,
[SERVICE_START_POST] = NAME_ACTIVATING,
[SERVICE_RUNNING] = NAME_ACTIVE,
[SERVICE_RELOAD_PRE] = NAME_ACTIVE_RELOADING,
[SERVICE_RELOAD] = NAME_ACTIVE_RELOADING,
[SERVICE_RELOAD_POST] = NAME_ACTIVE_RELOADING,
[SERVICE_STOP_PRE] = NAME_DEACTIVATING,
[SERVICE_STOP] = NAME_DEACTIVATING,
[SERVICE_SIGTERM] = NAME_DEACTIVATING,
[SERVICE_SIGKILL] = NAME_DEACTIVATING,
[SERVICE_STOP_POST] = NAME_DEACTIVATING,
[SERVICE_MAINTAINANCE] = NAME_INACTIVE,
};
return table[SERVICE(n)->state];
}
static void service_free_hook(Name *n) {
Service *s = SERVICE(n);
unsigned c;
assert(s);
exec_context_free(&s->exec_context);
for (c = 0; c < _SERVICE_EXEC_MAX; c++)
exec_command_free_list(s->exec_command[c]);
if (s->socket)
s->socket->service = NULL;
}
const NameVTable service_vtable = {
.suffix = ".service",
.load = service_load,
.dump = service_dump,
.start = service_start,
.stop = service_stop,
.reload = service_reload,
.active_state = service_active_state,
.free_hook = service_free_hook
};
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