void ExpandPromise(EvalContext *ctx, Promise *pp, PromiseActuator *ActOnPromise, void *param)
{
Rlist *listvars = NULL;
Rlist *scalars = NULL;
Promise *pcopy;
// Set a default for packages here...general defaults that need to come before
//fix me wth a general function SetMissingDefaults
SetAnyMissingDefaults(ctx, pp);
ScopeClear("match"); /* in case we expand something expired accidentially */
EvalContextStackPushPromiseFrame(ctx, pp);
pcopy = DeRefCopyPromise(ctx, pp);
MapIteratorsFromRval(ctx, PromiseGetBundle(pp)->name, &listvars, &scalars, (Rval) { pcopy->promiser, RVAL_TYPE_SCALAR });
if (pcopy->promisee.item != NULL)
{
MapIteratorsFromRval(ctx, PromiseGetBundle(pp)->name, &listvars, &scalars, pp->promisee);
}
for (size_t i = 0; i < SeqLength(pcopy->conlist); i++)
{
Constraint *cp = SeqAt(pcopy->conlist, i);
MapIteratorsFromRval(ctx, PromiseGetBundle(pp)->name, &listvars, &scalars, cp->rval);
}
CopyLocalizedIteratorsToThisScope(ctx, PromiseGetBundle(pp)->name, listvars);
CopyLocalizedScalarsToThisScope(ctx, PromiseGetBundle(pp)->name, scalars);
ScopePushThis();
ExpandPromiseAndDo(ctx, pcopy, listvars, ActOnPromise, param);
ScopePopThis();
PromiseDestroy(pcopy);
RlistDestroy(listvars);
RlistDestroy(scalars);
EvalContextStackPopFrame(ctx);
}
void ScopePopThis()
{
Scope *op = NULL;
if (RlistLen(CF_STCK) > 0)
{
ScopeClear("this");
{
Rlist *rp = CF_STCK;
if (CF_STCK == NULL)
{
ProgrammingError("Attempt to pop from empty stack");
}
op = rp->item;
if (rp->next == NULL) /* only one left */
{
CF_STCK = (void *) NULL;
}
else
{
CF_STCK = rp->next;
}
free((char *) rp);
}
if (op == NULL)
{
return;
}
free(op->scope);
op->scope = xstrdup("this");
}
}
static bool ScheduleRun(EvalContext *ctx, Policy **policy, GenericAgentConfig *config, ExecConfig *exec_config)
{
CfOut(OUTPUT_LEVEL_VERBOSE, "", "Sleeping for pulse time %d seconds...\n", CFPULSETIME);
sleep(CFPULSETIME); /* 1 Minute resolution is enough */
/*
* FIXME: this logic duplicates the one from cf-serverd.c. Unify ASAP.
*/
if (CheckNewPromises(ctx, config, InputFiles(ctx, *policy)) == RELOAD_FULL)
{
/* Full reload */
CfOut(OUTPUT_LEVEL_INFORM, "", "Re-reading promise file %s..\n", config->input_file);
EvalContextHeapClear(ctx);
DeleteItemList(IPADDRESSES);
IPADDRESSES = NULL;
ScopeDeleteAll();
strcpy(VDOMAIN, "undefined.domain");
POLICY_SERVER[0] = '\0';
PolicyDestroy(*policy);
*policy = NULL;
SetPolicyServer(ctx, POLICY_SERVER);
ScopeNewSpecialScalar(ctx, "sys", "policy_hub", POLICY_SERVER, DATA_TYPE_STRING);
GetNameInfo3(ctx, AGENT_TYPE_EXECUTOR);
GetInterfacesInfo(ctx, AGENT_TYPE_EXECUTOR);
Get3Environment(ctx, AGENT_TYPE_EXECUTOR);
BuiltinClasses(ctx);
OSClasses(ctx);
EvalContextHeapAddHard(ctx, CF_AGENTTYPES[AGENT_TYPE_EXECUTOR]);
SetReferenceTime(ctx, true);
GenericAgentConfigSetBundleSequence(config, NULL);
*policy = GenericAgentLoadPolicy(ctx, config);
ExecConfigUpdate(ctx, *policy, exec_config);
SetFacility(exec_config->log_facility);
}
else
{
/* Environment reload */
EvalContextHeapClear(ctx);
DeleteItemList(IPADDRESSES);
IPADDRESSES = NULL;
ScopeClear("this");
ScopeClear("mon");
ScopeClear("sys");
GetInterfacesInfo(ctx, AGENT_TYPE_EXECUTOR);
Get3Environment(ctx, AGENT_TYPE_EXECUTOR);
BuiltinClasses(ctx);
OSClasses(ctx);
SetReferenceTime(ctx, true);
}
{
StringSetIterator it = StringSetIteratorInit(exec_config->schedule);
const char *time_context = NULL;
while ((time_context = StringSetIteratorNext(&it)))
{
if (IsDefinedClass(ctx, time_context, NULL))
{
CfOut(OUTPUT_LEVEL_VERBOSE, "", "Waking up the agent at %s ~ %s \n", cf_ctime(&CFSTARTTIME), time_context);
return true;
}
}
}
CfOut(OUTPUT_LEVEL_VERBOSE, "", "Nothing to do at %s\n", cf_ctime(&CFSTARTTIME));
return false;
}
Promise *DeRefCopyPromise(EvalContext *ctx, const Promise *pp)
{
Promise *pcopy;
Rval returnval;
pcopy = xcalloc(1, sizeof(Promise));
if (pp->promiser)
{
pcopy->promiser = xstrdup(pp->promiser);
}
if (pp->promisee.item)
{
pcopy->promisee = RvalCopy(pp->promisee);
if (pcopy->promisee.type == RVAL_TYPE_LIST)
{
Rlist *rval_list = RvalRlistValue(pcopy->promisee);
RlistFlatten(ctx, &rval_list);
pcopy->promisee.item = rval_list;
}
}
if (pp->classes)
{
pcopy->classes = xstrdup(pp->classes);
}
/* FIXME: may it happen? */
if ((pp->promisee.item != NULL && pcopy->promisee.item == NULL))
{
ProgrammingError("Unable to copy promise");
}
pcopy->parent_promise_type = pp->parent_promise_type;
pcopy->offset.line = pp->offset.line;
pcopy->comment = pp->comment ? xstrdup(pp->comment) : NULL;
pcopy->has_subbundles = pp->has_subbundles;
pcopy->conlist = SeqNew(10, ConstraintDestroy);
pcopy->org_pp = pp->org_pp;
pcopy->offset = pp->offset;
/* No further type checking should be necessary here, already done by CheckConstraintTypeMatch */
for (size_t i = 0; i < SeqLength(pp->conlist); i++)
{
Constraint *cp = SeqAt(pp->conlist, i);
Body *bp = NULL;
FnCall *fp = NULL;
char *bodyname = NULL;
/* A body template reference could look like a scalar or fn to the parser w/w () */
Policy *policy = PolicyFromPromise(pp);
Seq *bodies = policy ? policy->bodies : NULL;
switch (cp->rval.type)
{
case RVAL_TYPE_SCALAR:
bodyname = (char *) cp->rval.item;
if (cp->references_body)
{
bp = IsBody(bodies, PromiseGetNamespace(pp), bodyname);
}
fp = NULL;
break;
case RVAL_TYPE_FNCALL:
fp = (FnCall *) cp->rval.item;
bodyname = fp->name;
bp = IsBody(bodies, PromiseGetNamespace(pp), bodyname);
break;
default:
bp = NULL;
fp = NULL;
bodyname = NULL;
break;
}
/* First case is: we have a body template to expand lval = body(args), .. */
if (bp)
{
EvalContextStackPushBodyFrame(ctx, bp);
if (strcmp(bp->type, cp->lval) != 0)
{
Log(LOG_LEVEL_ERR,
"Body type mismatch for body reference \"%s\" in promise at line %zu of %s (%s != %s)\n",
bodyname, pp->offset.line, PromiseGetBundle(pp)->source_path, bp->type, cp->lval);
}
/* Keep the referent body type as a boolean for convenience when checking later */
{
Constraint *cp_copy = PromiseAppendConstraint(pcopy, cp->lval, (Rval) {xstrdup("true"), RVAL_TYPE_SCALAR }, cp->classes, false);
cp_copy->offset = cp->offset;
}
if (bp->args != NULL)
{
/* There are arguments to insert */
if (fp == NULL || fp->args == NULL)
{
Log(LOG_LEVEL_ERR, "Argument mismatch for body reference \"%s\" in promise at line %zu of %s",
bodyname, pp->offset.line, PromiseGetBundle(pp)->source_path);
}
if (fp && bp && fp->args && bp->args && !ScopeMapBodyArgs(ctx, "body", fp->args, bp->args))
{
Log(LOG_LEVEL_ERR,
"Number of arguments does not match for body reference \"%s\" in promise at line %zu of %s\n",
bodyname, pp->offset.line, PromiseGetBundle(pp)->source_path);
}
for (size_t k = 0; k < SeqLength(bp->conlist); k++)
{
Constraint *scp = SeqAt(bp->conlist, k);
returnval = ExpandPrivateRval(ctx, "body", scp->rval);
{
Constraint *scp_copy = PromiseAppendConstraint(pcopy, scp->lval, returnval, scp->classes, false);
scp_copy->offset = scp->offset;
}
}
ScopeClear("body");
}
else
{
/* No arguments to deal with or body undeclared */
if (fp != NULL)
{
Log(LOG_LEVEL_ERR,
"An apparent body \"%s()\" was undeclared or could have incorrect args, but used in a promise near line %zu of %s (possible unquoted literal value)",
bodyname, pp->offset.line, PromiseGetBundle(pp)->source_path);
}
else
{
for (size_t k = 0; k < SeqLength(bp->conlist); k++)
{
Constraint *scp = SeqAt(bp->conlist, k);
Rval newrv = RvalCopy(scp->rval);
if (newrv.type == RVAL_TYPE_LIST)
{
Rlist *new_list = RvalRlistValue(newrv);
RlistFlatten(ctx, &new_list);
newrv.item = new_list;
}
{
Constraint *scp_copy = PromiseAppendConstraint(pcopy, scp->lval, newrv, scp->classes, false);
scp_copy->offset = scp->offset;
}
}
}
}
EvalContextStackPopFrame(ctx);
}
else
{
Policy *policy = PolicyFromPromise(pp);
if (cp->references_body && !IsBundle(policy->bundles, bodyname))
{
Log(LOG_LEVEL_ERR,
"Apparent body \"%s()\" was undeclared, but used in a promise near line %zu of %s (possible unquoted literal value)",
bodyname, pp->offset.line, PromiseGetBundle(pp)->source_path);
}
Rval newrv = RvalCopy(cp->rval);
if (newrv.type == RVAL_TYPE_LIST)
{
Rlist *new_list = RvalRlistValue(newrv);
RlistFlatten(ctx, &new_list);
newrv.item = new_list;
}
{
Constraint *cp_copy = PromiseAppendConstraint(pcopy, cp->lval, newrv, cp->classes, false);
cp_copy->offset = cp->offset;
}
}
}
return pcopy;
}
int VerifyMethod(EvalContext *ctx, char *attrname, Attributes a, Promise *pp)
{
Bundle *bp;
void *vp;
FnCall *fp;
char method_name[CF_EXPANDSIZE], qualified_method[CF_BUFSIZE], *method_deref;
Rlist *params = NULL;
int retval = false;
CfLock thislock;
char lockname[CF_BUFSIZE];
if (a.havebundle)
{
if ((vp = ConstraintGetRvalValue(ctx, attrname, pp, RVAL_TYPE_FNCALL)))
{
fp = (FnCall *) vp;
ExpandScalar(ctx, PromiseGetBundle(pp)->name, fp->name, method_name);
params = fp->args;
}
else if ((vp = ConstraintGetRvalValue(ctx, attrname, pp, RVAL_TYPE_SCALAR)))
{
ExpandScalar(ctx, PromiseGetBundle(pp)->name, (char *) vp, method_name);
params = NULL;
}
else
{
return false;
}
}
GetLockName(lockname, "method", pp->promiser, params);
thislock = AcquireLock(ctx, lockname, VUQNAME, CFSTARTTIME, a.transaction, pp, false);
if (thislock.lock == NULL)
{
return false;
}
PromiseBanner(pp);
if (strncmp(method_name,"default:",strlen("default:")) == 0) // CF_NS == ':'
{
method_deref = strchr(method_name, CF_NS) + 1;
}
else if ((strchr(method_name, CF_NS) == NULL) && (strcmp(PromiseGetNamespace(pp), "default") != 0))
{
snprintf(qualified_method, CF_BUFSIZE, "%s%c%s", PromiseGetNamespace(pp), CF_NS, method_name);
method_deref = qualified_method;
}
else
{
method_deref = method_name;
}
bp = PolicyGetBundle(PolicyFromPromise(pp), NULL, "agent", method_deref);
if (!bp)
{
bp = PolicyGetBundle(PolicyFromPromise(pp), NULL, "common", method_deref);
}
if (bp)
{
BannerSubBundle(bp, params);
EvalContextStackPushBundleFrame(ctx, bp, a.inherit);
ScopeClear(bp->name);
BundleHashVariables(ctx, bp);
ScopeAugment(ctx, bp, pp, params);
retval = ScheduleAgentOperations(ctx, bp);
GetReturnValue(ctx, bp->name, pp);
EvalContextStackPopFrame(ctx);
switch (retval)
{
case PROMISE_RESULT_FAIL:
cfPS(ctx, LOG_LEVEL_INFO, PROMISE_RESULT_FAIL, pp, a, "Method failed in some repairs or aborted");
break;
case PROMISE_RESULT_CHANGE:
cfPS(ctx, LOG_LEVEL_VERBOSE, PROMISE_RESULT_CHANGE, pp, a, "Method invoked repairs");
break;
default:
cfPS(ctx, LOG_LEVEL_VERBOSE, PROMISE_RESULT_NOOP, pp, a, "Method verified");
break;
}
for (const Rlist *rp = bp->args; rp; rp = rp->next)
{
const char *lval = rp->item;
ScopeDeleteScalar((VarRef) { NULL, bp->name, lval });
}
}
else
{
if (IsCf3VarString(method_name))
{
Log(LOG_LEVEL_ERR,
"A variable seems to have been used for the name of the method. In this case, the promiser also needs to contain the unique name of the method");
}
if (bp && (bp->name))
{
cfPS(ctx, LOG_LEVEL_ERR, PROMISE_RESULT_FAIL, pp, a, "Method '%s' was used but was not defined", bp->name);
}
else
{
cfPS(ctx, LOG_LEVEL_ERR, PROMISE_RESULT_FAIL, pp, a,
"A method attempted to use a bundle '%s' that was apparently not defined", method_name);
}
}
YieldCurrentLock(thislock);
return retval;
}
