You can use it for example:
-object
filter-redirector,id=r0,netdev=hn0,queue=tx,outdev=red0,vnet_hdr=on
Signed-off-by: Zhang Chen <zhangchen.f...@cn.fujitsu.com>
---
net/filter-mirror.c | 33 +++++++++++++++++++++++++++++++++
qemu-options.hx | 5 +++--
2 files changed, 36 insertions(+), 2 deletions(-)
diff --git a/net/filter-mirror.c b/net/filter-mirror.c
index 64323fc..a65853c 100644
--- a/net/filter-mirror.c
+++ b/net/filter-mirror.c
@@ -377,6 +377,13 @@ static char *filter_redirector_get_outdev(Object
*obj, Error **errp)
return g_strdup(s->outdev);
}
+static char *filter_redirector_get_vnet_hdr(Object *obj, Error
**errp)
+{
+ MirrorState *s = FILTER_REDIRECTOR(obj);
+
+ return s->vnet_hdr ? g_strdup("on") : g_strdup("off");
+}
+
static void
filter_redirector_set_outdev(Object *obj, const char *value, Error
**errp)
{
@@ -386,6 +393,21 @@ filter_redirector_set_outdev(Object *obj, const
char *value, Error **errp)
s->outdev = g_strdup(value);
}
+static void filter_redirector_set_vnet_hdr(Object *obj,
+ const char *value,
+ Error **errp)
+{
+ MirrorState *s = FILTER_REDIRECTOR(obj);
+
+ if (strcmp(value, "on") && strcmp(value, "off")) {
+ error_setg(errp, "Invalid value for filter-redirector
vnet_hdr, "
+ "should be 'on' or 'off'");
+ return;
+ }
+
+ s->vnet_hdr = !strcmp(value, "on");
+}
+
static void filter_mirror_init(Object *obj)
{
MirrorState *s = FILTER_MIRROR(obj);
@@ -405,10 +427,21 @@ static void filter_mirror_init(Object *obj)
static void filter_redirector_init(Object *obj)
{
+ MirrorState *s = FILTER_REDIRECTOR(obj);
+
object_property_add_str(obj, "indev", filter_redirector_get_indev,
filter_redirector_set_indev, NULL);
object_property_add_str(obj, "outdev",
filter_redirector_get_outdev,
filter_redirector_set_outdev, NULL);
+
+ /*
+ * The vnet_hdr is disabled by default, if you want to enable
+ * this option, you must enable all the option on related modules
+ * (like other filter or colo-compare).
+ */
+ s->vnet_hdr = false;
+ object_property_add_str(obj, "vnet_hdr",
filter_redirector_get_vnet_hdr,
+ filter_redirector_set_vnet_hdr, NULL);
}
static void filter_mirror_fini(Object *obj)
diff --git a/qemu-options.hx b/qemu-options.hx
index 1e08481..0f81c22 100644
--- a/qemu-options.hx
+++ b/qemu-options.hx
@@ -4031,10 +4031,11 @@ filter-mirror on netdev @var{netdevid},mirror
net packet to chardev
with vnet_hdr_len.
@item -object
filter-redirector,id=@var{id},netdev=@var{netdevid},indev=@var{chardevid},
-outdev=@var{chardevid}[,queue=@var{all|rx|tx}]
+outdev=@var{chardevid},vnet_hdr=@var{on|off}[,queue=@var{all|rx|tx}]
filter-redirector on netdev @var{netdevid},redirect filter's net
packet to chardev
-@var{chardevid},and redirect indev's packet to filter.
+@var{chardevid},and redirect indev's packet to filter.if vnet_hdr = on,
+filter-redirector will redirect packet with vnet_hdr_len.
Create a filter-redirector we need to differ outdev id from indev
id, id can not
be the same. we can just use indev or outdev, but at least one of
indev or outdev
need to be specified.