+ }
+}
+
static ssize_t filter_mirror_receive_iov(NetFilterState *nf,
NetClientState *sender,
unsigned flags,
@@ -89,6 +159,27 @@ static ssize_t filter_mirror_receive_iov(NetFilterState *nf,
return 0;
}
+static ssize_t filter_redirector_receive_iov(NetFilterState *nf,
+ NetClientState *sender,
+ unsigned flags,
+ const struct iovec *iov,
+ int iovcnt,
+ NetPacketSent *sent_cb)
+{
+ MirrorState *s = FILTER_REDIRECTOR(nf);
+ int ret;
+
+ if (s->chr_out) {
+ ret = filter_mirror_send(s->chr_out, iov, iovcnt);
+ if (ret) {
+ error_report("filter_mirror_send failed(%s)", strerror(-ret));
+ }
+ return iov_size(iov, iovcnt);
+ } else {
+ return 0;
+ }
+}
+
static void filter_mirror_cleanup(NetFilterState *nf)
{
MirrorState *s = FILTER_MIRROR(nf);
@@ -98,6 +189,18 @@ static void filter_mirror_cleanup(NetFilterState *nf)
}
}
+static void filter_redirector_cleanup(NetFilterState *nf)
+{
+ MirrorState *s = FILTER_REDIRECTOR(nf);
+
+ if (s->chr_in) {
+ qemu_chr_fe_release(s->chr_in);
+ }
+ if (s->chr_out) {
+ qemu_chr_fe_release(s->chr_out);
+ }
+}
+
static void filter_mirror_setup(NetFilterState *nf, Error **errp)
{
MirrorState *s = FILTER_MIRROR(nf);
@@ -121,6 +224,47 @@ static void filter_mirror_setup(NetFilterState *nf, Error
**errp)
}
}
+static void filter_redirector_setup(NetFilterState *nf, Error **errp)
+{
+ MirrorState *s = FILTER_REDIRECTOR(nf);
+
+ if (!s->indev && !s->outdev) {
+ error_setg(errp, "filter redirector needs 'indev' or "
+ "'outdev' at least one property set");
+ return;
+ } else if (s->indev && s->outdev) {
+ if (!strcmp(s->indev, s->outdev)) {
+ error_setg(errp, "filter redirector needs 'indev' and "
+ "'outdev' are not same");
+ return;
+ }
+ }
+
+ if (s->indev) {
+ s->chr_in = qemu_chr_find(s->indev);
+ if (s->chr_in == NULL) {
+ error_set(errp, ERROR_CLASS_DEVICE_NOT_FOUND,
+ "IN Device '%s' not found", s->indev);
+ return;
+ }
+
+ qemu_chr_fe_claim_no_fail(s->chr_in);
+ qemu_chr_add_handlers(s->chr_in, redirector_chr_can_read,
+ redirector_chr_read, NULL, nf);
+ s->incoming_queue = qemu_new_net_queue(qemu_netfilter_pass_to_next,
nf);
+ }
+
+ if (s->outdev) {
+ s->chr_out = qemu_chr_find(s->outdev);
+ if (s->chr_out == NULL) {
+ error_set(errp, ERROR_CLASS_DEVICE_NOT_FOUND,
+ "OUT Device '%s' not found", s->outdev);
+ return;
+ }
+ qemu_chr_fe_claim_no_fail(s->chr_out);
+ }
+}
+
static void filter_mirror_class_init(ObjectClass *oc, void *data)
{
NetFilterClass *nfc = NETFILTER_CLASS(oc);
@@ -130,6 +274,31 @@ static void filter_mirror_class_init(ObjectClass *oc, void
*data)
nfc->receive_iov = filter_mirror_receive_iov;
}
+static void filter_redirector_class_init(ObjectClass *oc, void *data)
+{
+ NetFilterClass *nfc = NETFILTER_CLASS(oc);
+
+ nfc->setup = filter_redirector_setup;
+ nfc->cleanup = filter_redirector_cleanup;
+ nfc->receive_iov = filter_redirector_receive_iov;
+}
+
+static char *filter_redirector_get_indev(Object *obj, Error **errp)
+{
+ MirrorState *s = FILTER_REDIRECTOR(obj);
+
+ return g_strdup(s->indev);
+}
+
+static void
+filter_redirector_set_indev(Object *obj, const char *value, Error **errp)
+{
+ MirrorState *s = FILTER_REDIRECTOR(obj);
+
+ g_free(s->indev);
+ s->indev = g_strdup(value);
+}
+
static char *filter_mirror_get_outdev(Object *obj, Error **errp)
{
MirrorState *s = FILTER_MIRROR(obj);
@@ -151,12 +320,36 @@ filter_mirror_set_outdev(Object *obj, const char *value,
Error **errp)
}
}
+static char *filter_redirector_get_outdev(Object *obj, Error **errp)
+{
+ MirrorState *s = FILTER_REDIRECTOR(obj);
+
+ return g_strdup(s->outdev);
+}
+
+static void
+filter_redirector_set_outdev(Object *obj, const char *value, Error **errp)
+{
+ MirrorState *s = FILTER_REDIRECTOR(obj);
+
+ g_free(s->outdev);
+ s->outdev = g_strdup(value);
+}
+
static void filter_mirror_init(Object *obj)
{
object_property_add_str(obj, "outdev", filter_mirror_get_outdev,
filter_mirror_set_outdev, NULL);
}
+static void filter_redirector_init(Object *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);
+}
+
static void filter_mirror_fini(Object *obj)
{
MirrorState *s = FILTER_MIRROR(obj);
@@ -164,6 +357,23 @@ static void filter_mirror_fini(Object *obj)
g_free(s->outdev);
}
+static void filter_redirector_fini(Object *obj)
+{
+ MirrorState *s = FILTER_REDIRECTOR(obj);
+
+ g_free(s->indev);
+ g_free(s->outdev);
+}
+
+static const TypeInfo filter_redirector_info = {
+ .name = TYPE_FILTER_REDIRECTOR,
+ .parent = TYPE_NETFILTER,
+ .class_init = filter_redirector_class_init,
+ .instance_init = filter_redirector_init,
+ .instance_finalize = filter_redirector_fini,
+ .instance_size = sizeof(MirrorState),
+};
+
static const TypeInfo filter_mirror_info = {
.name = TYPE_FILTER_MIRROR,
.parent = TYPE_NETFILTER,
@@ -176,6 +386,7 @@ static const TypeInfo filter_mirror_info = {
static void register_types(void)
{
type_register_static(&filter_mirror_info);
+ type_register_static(&filter_redirector_info);
}
type_init(register_types);
diff --git a/qemu-options.hx b/qemu-options.hx
index ca27863..84584e3 100644
--- a/qemu-options.hx
+++ b/qemu-options.hx
@@ -3764,6 +3764,14 @@ queue @var{all|rx|tx} is an option that can be applied
to any netfilter.
filter-mirror on netdev @var{netdevid},mirror net packet to chardev
@var{chardevid}
address@hidden -object
filter-redirector,address@hidden,address@hidden,address@hidden,
address@hidden,address@hidden|rx|tx}]
+
+filter-redirector on netdev @var{netdevid},redirect filter's net packet to
chardev
address@hidden,and redirect indev's packet to filter.
+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 to be set.