Emit a VCL_Error SLT when we exceed ESI depth

ef4730d9 · Poul-Henning Kamp · 267504b8 · ef4730d9
Commit ef4730d9 authored Oct 13, 2018 by Poul-Henning Kamp
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cache_esi_deliver.c bin/varnishd/cache/cache_esi_deliver.c +5 -1

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--- a/bin/varnishd/cache/cache_esi_deliver.c
+++ b/bin/varnishd/cache/cache_esi_deliver.c
@@ -108,8 +108,12 @@ ved_include(struct req *preq, const char *src, const char *host,
 	CHECK_OBJ_NOTNULL(ecx, ECX_MAGIC);
 	wrk = preq->wrk;

-	if (preq->esi_level >= cache_param->max_esi_depth)
+	if (preq->esi_level >= cache_param->max_esi_depth) {
+		VSLb(preq->vsl, SLT_VCL_Error,
+		    "ESI depth limit reach (param max_esi_depth = %u",
+		    cache_param->max_esi_depth);
 		return;
+	}

 	req = Req_New(wrk, sp);
 	SES_Ref(sp);