filter-rewriter: introduce filter-rewriter initialization

Filter-rewriter is a part of COLO project.
It will rewrite some of secondary packet to make
secondary guest's tcp connection established successfully.
In this module we will rewrite tcp packet's ack to the secondary
from primary,and rewrite tcp packet's seq to the primary from
secondary.

usage:

colo secondary:
-object filter-redirector,id=f1,netdev=hn0,queue=tx,indev=red0
-object filter-redirector,id=f2,netdev=hn0,queue=rx,outdev=red1
-object filter-rewriter,id=rew0,netdev=hn0,queue=all

Signed-off-by: Zhang Chen <zhangchen.fnst@cn.fujitsu.com>
Signed-off-by: Li Zhijian <lizhijian@cn.fujitsu.com>
Signed-off-by: Wen Congyang <wency@cn.fujitsu.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>

1 files changed, 2 insertions, 1 deletions

diff --git a/vl.c b/vl.c
index 7dadb9e1a4..eafda8d737 100644
--- a/vl.c
+++ b/vl.c
@@ -2846,7 +2846,8 @@ static bool object_create_initial(const char *type)
         g_str_equal(type, "filter-dump") ||
         g_str_equal(type, "filter-mirror") ||
         g_str_equal(type, "filter-redirector") ||
-        g_str_equal(type, "colo-compare")) {
+        g_str_equal(type, "colo-compare") ||
+        g_str_equal(type, "filter-rewriter")) {
         return false;
     }