From: Jeff Lucovsky <jeff.lucovsky@corelight.com>
Date: Thu, 7 Mar 2024 20:24:36 +0000 (-0500)
Subject: netmap: Avoid HW errors when using pipes
X-Git-Tag: suricata-8.0.0-beta1~1666
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=af529a56a9bcb37bae5243236a4505fff0df268b;p=thirdparty%2Fsuricata.git

netmap: Avoid HW errors when using pipes

Issue: 6837

When using netmap pipes (with lb, for example), avoid direct hardware
related IOCTLs that will fail (not supported with pipes).
---

diff --git a/src/runmode-netmap.c b/src/runmode-netmap.c
index 927dc71885..e207cf0630 100644
--- a/src/runmode-netmap.c
+++ b/src/runmode-netmap.c
@@ -344,7 +344,9 @@ static void *ParseNetmapConfig(const char *iface_name)
         }
     }
 
-    int ring_count = NetmapGetRSSCount(aconf->iface_name);
+    int ring_count = 0;
+    if (aconf->in.real)
+        ring_count = NetmapGetRSSCount(aconf->iface_name);
     if (strlen(aconf->iface_name) > 0 &&
             (aconf->iface_name[strlen(aconf->iface_name) - 1] == '^' ||
                     aconf->iface_name[strlen(aconf->iface_name) - 1] == '*')) {