Exemple #1
0
static ExpressionValue EvalTokenAsClass(const char *classname, void *param)
{
    const EvalContext *ctx = ((EvalTokenAsClassContext *)param)->ctx;
    const char *ns = ((EvalTokenAsClassContext *)param)->ns;

    char qualified_class[CF_MAXVARSIZE];

    if (strcmp(classname, "any") == 0)
       {
       return true;
       }
    
    if (strchr(classname, ':'))
    {
        if (strncmp(classname, "default:", strlen("default:")) == 0)
        {
            snprintf(qualified_class, CF_MAXVARSIZE, "%s", classname + strlen("default:"));
        }
        else
        {
            snprintf(qualified_class, CF_MAXVARSIZE, "%s", classname);
        }
    }
    else if (ns != NULL && strcmp(ns, "default") != 0)
    {
        snprintf(qualified_class, CF_MAXVARSIZE, "%s:%s", ns, (char *)classname);
    }
    else
    {
        snprintf(qualified_class, CF_MAXVARSIZE, "%s", classname);
    }

    if (EvalContextHeapContainsNegated(ctx, qualified_class))
    {
        return false;
    }
    if (EvalContextStackFrameContainsNegated(ctx, qualified_class))
    {
        return false;
    }
    if (EvalContextHeapContainsHard(ctx, classname))  // Hard classes are always unqualified
    {
        return true;
    }
    if (EvalContextHeapContainsSoft(ctx, qualified_class))
    {
        return true;
    }
    if (EvalContextStackFrameContainsSoft(ctx, qualified_class))
    {
        return true;
    }
    return false;
}
Exemple #2
0
static void VerifyProcessOp(EvalContext *ctx, Item *procdata, Attributes a, Promise *pp)
{
    int matches = 0, do_signals = true, out_of_range, killed = 0, need_to_restart = true;
    Item *killlist = NULL;

    matches = FindPidMatches(ctx, procdata, &killlist, a, pp->promiser);

/* promise based on number of matches */

    if (a.process_count.min_range != CF_NOINT)  /* if a range is specified */
    {
        if ((matches < a.process_count.min_range) || (matches > a.process_count.max_range))
        {
            cfPS(ctx, LOG_LEVEL_VERBOSE, PROMISE_RESULT_CHANGE, pp, a, "Process count for '%s' was out of promised range (%d found)", pp->promiser, matches);
            for (const Rlist *rp = a.process_count.out_of_range_define; rp != NULL; rp = rp->next)
            {
                if (!EvalContextHeapContainsSoft(ctx, rp->item))
                {
                    EvalContextHeapAddSoft(ctx, rp->item, PromiseGetNamespace(pp));
                }
            }
            out_of_range = true;
        }
        else
        {
            for (const Rlist *rp = a.process_count.in_range_define; rp != NULL; rp = rp->next)
            {
                if (!EvalContextHeapContainsSoft(ctx, rp->item))
                {
                    EvalContextHeapAddSoft(ctx, rp->item, PromiseGetNamespace(pp));
                }
            }
            cfPS(ctx, LOG_LEVEL_VERBOSE, PROMISE_RESULT_NOOP, pp, a, "Process promise for '%s' is kept", pp->promiser);
            out_of_range = false;
        }
    }
    else
    {
        out_of_range = true;
    }

    if (!out_of_range)
    {
        return;
    }

    if (a.transaction.action == cfa_warn)
    {
        do_signals = false;
    }
    else
    {
        do_signals = true;
    }

/* signal/kill promises for existing matches */

    if (do_signals && (matches > 0))
    {
        if (a.process_stop != NULL)
        {
            if (DONTDO)
            {
                cfPS(ctx, LOG_LEVEL_ERR, PROMISE_RESULT_WARN, pp, a,
                     "Need to keep process-stop promise for '%s', but only a warning is promised", pp->promiser);
            }
            else
            {
                if (IsExecutable(CommandArg0(a.process_stop)))
                {
                    ShellCommandReturnsZero(a.process_stop, SHELL_TYPE_NONE);
                }
                else
                {
                    cfPS(ctx, LOG_LEVEL_VERBOSE, PROMISE_RESULT_FAIL, pp, a,
                         "Process promise to stop '%s' could not be kept because '%s' the stop operator failed",
                         pp->promiser, a.process_stop);
                    DeleteItemList(killlist);
                    return;
                }
            }
        }

        killed = DoAllSignals(ctx, killlist, a, pp);
    }

/* delegated promise to restart killed or non-existent entries */

    need_to_restart = (a.restart_class != NULL) && (killed || (matches == 0));

    DeleteItemList(killlist);

    if (!need_to_restart)
    {
        cfPS(ctx, LOG_LEVEL_VERBOSE, PROMISE_RESULT_NOOP, pp, a, "No restart promised for %s", pp->promiser);
        return;
    }
    else
    {
        if (a.transaction.action == cfa_warn)
        {
            cfPS(ctx, LOG_LEVEL_ERR, PROMISE_RESULT_WARN, pp, a,
                 "Need to keep restart promise for '%s', but only a warning is promised", pp->promiser);
        }
        else
        {
            cfPS(ctx, LOG_LEVEL_INFO, PROMISE_RESULT_CHANGE, pp, a, "Making a one-time restart promise for '%s'", pp->promiser);
            EvalContextHeapAddSoft(ctx, a.restart_class, PromiseGetNamespace(pp));
        }
    }
}
Exemple #3
0
void EvalContextStackFrameAddSoft(EvalContext *ctx, const char *context)
{
    assert(SeqLength(ctx->stack) > 0);

    StackFrameBundle frame;
    {
        StackFrame *last_frame = LastStackFrameBundle(ctx);
        if (!last_frame)
        {
            ProgrammingError("Attempted to add a soft class on the stack, but stack had no bundle frame");
        }
        frame = last_frame->data.bundle;
    }

    char copy[CF_BUFSIZE];
    if (strcmp(frame.owner->ns, "default") != 0)
    {
         snprintf(copy, CF_MAXVARSIZE, "%s:%s", frame.owner->ns, context);
    }
    else
    {
         strncpy(copy, context, CF_MAXVARSIZE);
    }

    if (Chop(copy, CF_EXPANDSIZE) == -1)
    {
        CfOut(OUTPUT_LEVEL_ERROR, "", "Chop was called on a string that seemed to have no terminator");
    }

    if (strlen(copy) == 0)
    {
        return;
    }

    CfDebug("NewBundleClass(%s)\n", copy);
    
    if (IsRegexItemIn(ctx, ctx->heap_abort_current_bundle, copy))
    {
        CfOut(OUTPUT_LEVEL_ERROR, "", "Bundle %s aborted on defined class \"%s\"\n", frame.owner->name, copy);
        ABORTBUNDLE = true;
    }

    if (IsRegexItemIn(ctx, ctx->heap_abort, copy))
    {
        CfOut(OUTPUT_LEVEL_ERROR, "", "cf-agent aborted on defined class \"%s\" defined in bundle %s\n", copy, frame.owner->name);
        exit(1);
    }

    if (EvalContextHeapContainsSoft(ctx, copy))
    {
        CfOut(OUTPUT_LEVEL_ERROR, "", "WARNING - private class \"%s\" in bundle \"%s\" shadows a global class - you should choose a different name to avoid conflicts",
              copy, frame.owner->name);
    }

    if (EvalContextStackFrameContainsSoft(ctx, copy))
    {
        return;
    }

    StringSetAdd(frame.contexts, xstrdup(copy));

    for (const Item *ip = ctx->heap_abort; ip != NULL; ip = ip->next)
    {
        if (IsDefinedClass(ctx, ip->name, frame.owner->ns))
        {
            CfOut(OUTPUT_LEVEL_ERROR, "", "cf-agent aborted on defined class \"%s\" defined in bundle %s\n", copy, frame.owner->name);
            exit(1);
        }
    }

    if (!ABORTBUNDLE)
    {
        for (const Item *ip = ctx->heap_abort_current_bundle; ip != NULL; ip = ip->next)
        {
            if (IsDefinedClass(ctx, ip->name, frame.owner->ns))
            {
                CfOut(OUTPUT_LEVEL_ERROR, "", " -> Setting abort for \"%s\" when setting \"%s\"", ip->name, context);
                ABORTBUNDLE = true;
                break;
            }
        }
    }
}
Exemple #4
0
void EvalContextHeapAddSoft(EvalContext *ctx, const char *context, const char *ns)
{
    char context_copy[CF_MAXVARSIZE];
    char canonified_context[CF_MAXVARSIZE];

    strcpy(canonified_context, context);
    if (Chop(canonified_context, CF_EXPANDSIZE) == -1)
    {
        CfOut(OUTPUT_LEVEL_ERROR, "", "Chop was called on a string that seemed to have no terminator");
    }
    CanonifyNameInPlace(canonified_context);
    
    if (ns && strcmp(ns, "default") != 0)
    {
        snprintf(context_copy, CF_MAXVARSIZE, "%s:%s", ns, canonified_context);
    }
    else
    {
        strncpy(context_copy, canonified_context, CF_MAXVARSIZE);
    }
    
    CfDebug("EvalContextHeapAddSoft(%s)\n", context_copy);

    if (strlen(context_copy) == 0)
    {
        return;
    }

    if (IsRegexItemIn(ctx, ctx->heap_abort_current_bundle, context_copy))
    {
        CfOut(OUTPUT_LEVEL_ERROR, "", "Bundle aborted on defined class \"%s\"\n", context_copy);
        ABORTBUNDLE = true;
    }

    if (IsRegexItemIn(ctx, ctx->heap_abort, context_copy))
    {
        CfOut(OUTPUT_LEVEL_ERROR, "", "cf-agent aborted on defined class \"%s\"\n", context_copy);
        exit(1);
    }

    if (EvalContextHeapContainsSoft(ctx, context_copy))
    {
        return;
    }

    StringSetAdd(ctx->heap_soft, xstrdup(context_copy));

    for (const Item *ip = ctx->heap_abort; ip != NULL; ip = ip->next)
    {
        if (IsDefinedClass(ctx, ip->name, ns))
        {
            CfOut(OUTPUT_LEVEL_ERROR, "", "cf-agent aborted on defined class \"%s\" defined in bundle %s\n", ip->name, StackFrameOwnerName(LastStackFrame(ctx, 0)));
            exit(1);
        }
    }

    if (!ABORTBUNDLE)
    {
        for (const Item *ip = ctx->heap_abort_current_bundle; ip != NULL; ip = ip->next)
        {
            if (IsDefinedClass(ctx, ip->name, ns))
            {
                CfOut(OUTPUT_LEVEL_ERROR, "", " -> Setting abort for \"%s\" when setting \"%s\"", ip->name, context_copy);
                ABORTBUNDLE = true;
                break;
            }
        }
    }
}
Exemple #5
0
void NewBundleClass(EvalContext *ctx, const char *context, const char *bundle, const char *ns)
{
    char copy[CF_BUFSIZE];

    if (ns && strcmp(ns, "default") != 0)
    {
        snprintf(copy, CF_MAXVARSIZE, "%s:%s", ns, context);
    }
    else
    {
        strncpy(copy, context, CF_MAXVARSIZE);
    }

    if (Chop(copy, CF_EXPANDSIZE) == -1)
    {
        CfOut(OUTPUT_LEVEL_ERROR, "", "Chop was called on a string that seemed to have no terminator");
    }

    if (strlen(copy) == 0)
    {
        return;
    }

    CfDebug("NewBundleClass(%s)\n", copy);
    
    if (IsRegexItemIn(ctx, ctx->heap_abort_current_bundle, copy))
    {
        CfOut(OUTPUT_LEVEL_ERROR, "", "Bundle %s aborted on defined class \"%s\"\n", bundle, copy);
        ABORTBUNDLE = true;
    }

    if (IsRegexItemIn(ctx, ctx->heap_abort, copy))
    {
        CfOut(OUTPUT_LEVEL_ERROR, "", "cf-agent aborted on defined class \"%s\" defined in bundle %s\n", copy, bundle);
        exit(1);
    }

    if (EvalContextHeapContainsSoft(ctx, copy))
    {
        CfOut(OUTPUT_LEVEL_ERROR, "", "WARNING - private class \"%s\" in bundle \"%s\" shadows a global class - you should choose a different name to avoid conflicts", copy, bundle);
    }

    if (EvalContextStackFrameContainsSoft(ctx, copy))
    {
        return;
    }

    EvalContextStackFrameAddSoft(ctx, copy);

    for (const Item *ip = ctx->heap_abort; ip != NULL; ip = ip->next)
    {
        if (IsDefinedClass(ctx, ip->name, ns))
        {
            CfOut(OUTPUT_LEVEL_ERROR, "", "cf-agent aborted on defined class \"%s\" defined in bundle %s\n", copy, bundle);
            exit(1);
        }
    }

    if (!ABORTBUNDLE)
    {
        for (const Item *ip = ctx->heap_abort_current_bundle; ip != NULL; ip = ip->next)
        {
            if (IsDefinedClass(ctx, ip->name, ns))
            {
                CfOut(OUTPUT_LEVEL_ERROR, "", " -> Setting abort for \"%s\" when setting \"%s\"", ip->name, context);
                ABORTBUNDLE = true;
                break;
            }
        }
    }
}