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/*
Copyright 2024 Northern.tech AS
This file is part of CFEngine 3 - written and maintained by Northern.tech AS.
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; version 3.
This program 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 program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA
To the extent this program is licensed as part of the Enterprise
versions of CFEngine, the applicable Commercial Open Source License
(COSL) may apply to this file if you as a licensee so wish it. See
included file COSL.txt.
*/
#include <verify_services.h>
#include <actuator.h>
#include <verify_methods.h>
#include <promises.h>
#include <vars.h>
#include <attributes.h>
#include <fncall.h>
#include <locks.h>
#include <rlist.h>
#include <policy.h>
#include <scope.h>
#include <cf-agent-enterprise-stubs.h>
#include <cf-agent-windows-functions.h>
#include <ornaments.h>
#include <eval_context.h>
static bool ServicesSanityChecks(const Attributes *a, const Promise *pp);
static void SetServiceDefaults(Attributes *a);
static PromiseResult DoVerifyServices(EvalContext *ctx, const Attributes *attr, const Promise *pp);
static PromiseResult VerifyServices(EvalContext *ctx, const Attributes *a, const Promise *pp);
/*****************************************************************************/
PromiseResult VerifyServicesPromise(EvalContext *ctx, const Promise *pp)
{
Attributes a = GetServicesAttributes(ctx, pp);
SetServiceDefaults(&a);
if (ServicesSanityChecks(&a, pp))
{
return VerifyServices(ctx, &a, pp);
}
else
{
return PROMISE_RESULT_NOOP;
}
}
/*****************************************************************************/
static bool ServicesSanityChecks(const Attributes *a, const Promise *pp)
{
Rlist *dep;
for (dep = a->service.service_depend; dep != NULL; dep = dep->next)
{
if (strcmp(pp->promiser, RlistScalarValue(dep)) == 0)
{
Log(LOG_LEVEL_ERR, "Service promiser '%s' has itself as dependency", pp->promiser);
PromiseRef(LOG_LEVEL_ERR, pp);
return false;
}
}
if (a->service.service_type == NULL)
{
Log(LOG_LEVEL_ERR, "Service type for service '%s' is not known", pp->promiser);
PromiseRef(LOG_LEVEL_ERR, pp);
return false;
}
#ifdef __MINGW32__
if (strcmp(a->service.service_type, "windows") != 0)
{
Log(LOG_LEVEL_ERR, "Service type for promiser '%s' must be 'windows' on this system, but is '%s'",
pp->promiser, a->service.service_type);
PromiseRef(LOG_LEVEL_ERR, pp);
return false;
}
#endif /* __MINGW32__ */
return true;
}
/*****************************************************************************/
static void SetServiceDefaults(Attributes *a)
{
if ((a->service.service_policy == NULL) ||
strcmp(a->service.service_policy, "") == 0)
{
Log(LOG_LEVEL_VERBOSE,
"Attribute 'service_policy' was not set, defaulting to: 'start'");
a->service.service_policy = "start";
}
if (a->service.service_autostart_policy == NULL)
{
a->service.service_autostart_policy = "none";
}
if (a->service.service_depend_chain == NULL)
{
a->service.service_depend_chain = "ignore";
}
// default service type to "windows" on windows platforms
#ifdef __MINGW32__
if (a->service.service_type == NULL)
{
a->service.service_type = "windows";
}
#else
if (a->service.service_type == NULL)
{
a->service.service_type = "bundle";
}
#endif /* __MINGW32__ */
}
/*****************************************************************************/
/* Level */
/*****************************************************************************/
static PromiseResult VerifyServices(EvalContext *ctx, const Attributes *a, const Promise *pp)
{
assert(a != NULL);
CfLock thislock;
thislock = AcquireLock(ctx, pp->promiser, VUQNAME, CFSTARTTIME, a->transaction.ifelapsed, a->transaction.expireafter, pp, false);
if (thislock.lock == NULL)
{
return PROMISE_RESULT_SKIPPED;
}
PromiseBanner(ctx, pp);
PromiseResult result = PROMISE_RESULT_SKIPPED;
if (strcmp(a->service.service_type, "windows") == 0)
{
#ifdef __MINGW32__
result = PromiseResultUpdate(result, VerifyWindowsService(ctx, a, pp));
#else
Log(LOG_LEVEL_INFO, "Service type windows not supported on this platform.");
#endif
}
else
{
result = PromiseResultUpdate(result, DoVerifyServices(ctx, a, pp));
}
YieldCurrentLock(thislock);
return result;
}
/*****************************************************************************/
/* Level */
/*****************************************************************************/
static FnCall *DefaultServiceBundleCall(const Promise *pp, const char *service_policy)
{
Rlist *args = NULL;
FnCall *call = NULL;
RlistAppend(&args, pp->promiser, RVAL_TYPE_SCALAR);
RlistAppend(&args, service_policy, RVAL_TYPE_SCALAR);
Rval name = DefaultBundleConstraint(pp, "service");
if (PolicyGetBundle(PolicyFromPromise(pp), PromiseGetBundle(pp)->ns, "agent", (char *)name.item))
{
Log(LOG_LEVEL_VERBOSE, "Found service special bundle %s in ns %s\n", (char *)name.item, PromiseGetBundle(pp)->ns);
call = FnCallNew(name.item, args);
}
else
{
call = FnCallNew("default:standard_services", args);
}
return call;
}
static PromiseResult DoVerifyServices(EvalContext *ctx, const Attributes *attr, const Promise *pp)
{
assert(attr != NULL);
Attributes a = *attr; // TODO: Remove this local copy
Rval call;
{
const Constraint *cp = PromiseGetConstraint(pp, "service_bundle");
if (cp)
{
call = RvalCopy(cp->rval);
}
else
{
call = (Rval) { DefaultServiceBundleCall(pp, a.service.service_policy), RVAL_TYPE_FNCALL };
}
}
a.havebundle = true;
EvalContextVariablePutSpecial(ctx, SPECIAL_SCOPE_THIS, "service_policy", a.service.service_policy, CF_DATA_TYPE_STRING, "source=promise");
PromiseResult result = PROMISE_RESULT_NOOP;
result = PromiseResultUpdate(result, VerifyMethod(ctx, call, &a, pp)); // Send list of classes to set privately?
RvalDestroy(call);
return result;
}
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