#include "qemu-common.h"
#include "qapi/error.h"
#include "qapi/qmp/qerror.h"
+#include "qemu/error-report.h"
#include "qapi-visit.h"
#include "qom/object.h"
#include "qemu/main-loop.h"
NetQueue *incoming_queue;
/* hashtable to save connection */
GHashTable *connection_track_table;
+ bool vnet_hdr;
} RewriterState;
static void filter_rewriter_flush(NetFilterState *nf)
ConnectionKey key;
Packet *pkt;
ssize_t size = iov_size(iov, iovcnt);
+ ssize_t vnet_hdr_len = 0;
char *buf = g_malloc0(size);
iov_to_buf(iov, iovcnt, 0, buf, size);
- pkt = packet_new(buf, size, 0);
+
+ if (s->vnet_hdr) {
+ vnet_hdr_len = nf->netdev->vnet_hdr_len;
+ }
+
+ pkt = packet_new(buf, size, vnet_hdr_len);
g_free(buf);
/*
s->incoming_queue = qemu_new_net_queue(qemu_netfilter_pass_to_next, nf);
}
+static bool filter_rewriter_get_vnet_hdr(Object *obj, Error **errp)
+{
+ RewriterState *s = FILTER_COLO_REWRITER(obj);
+
+ return s->vnet_hdr;
+}
+
+static void filter_rewriter_set_vnet_hdr(Object *obj,
+ bool value,
+ Error **errp)
+{
+ RewriterState *s = FILTER_COLO_REWRITER(obj);
+
+ s->vnet_hdr = value;
+}
+
+static void filter_rewriter_init(Object *obj)
+{
+ RewriterState *s = FILTER_COLO_REWRITER(obj);
+
+ s->vnet_hdr = false;
+ object_property_add_bool(obj, "vnet_hdr_support",
+ filter_rewriter_get_vnet_hdr,
+ filter_rewriter_set_vnet_hdr, NULL);
+}
+
static void colo_rewriter_class_init(ObjectClass *oc, void *data)
{
NetFilterClass *nfc = NETFILTER_CLASS(oc);
.name = TYPE_FILTER_REWRITER,
.parent = TYPE_NETFILTER,
.class_init = colo_rewriter_class_init,
+ .instance_init = filter_rewriter_init,
.instance_size = sizeof(RewriterState),
};
be the same. we can just use indev or outdev, but at least one of indev or outdev
need to be specified.
-@item -object filter-rewriter,id=@var{id},netdev=@var{netdevid}[,queue=@var{all|rx|tx}]
+@item -object filter-rewriter,id=@var{id},netdev=@var{netdevid},queue=@var{all|rx|tx},[vnet_hdr_support]
Filter-rewriter is a part of COLO project.It will rewrite tcp packet to
secondary from primary to keep secondary tcp connection,and rewrite
tcp packet to primary from secondary make tcp packet can be handled by
-client.
+client.if it has the vnet_hdr_support flag, we can parse packet with vnet header.
usage:
colo secondary: