#include "migration/colo.h"
#include "util.h"
-#define FILTER_COLO_REWRITER(obj) \
- OBJECT_CHECK(RewriterState, (obj), TYPE_FILTER_REWRITER)
-
#define TYPE_FILTER_REWRITER "filter-rewriter"
+OBJECT_DECLARE_SIMPLE_TYPE(RewriterState, FILTER_REWRITER)
+
#define FAILOVER_MODE_ON true
#define FAILOVER_MODE_OFF false
-typedef struct RewriterState {
+struct RewriterState {
NetFilterState parent_obj;
NetQueue *incoming_queue;
/* hashtable to save connection */
GHashTable *connection_track_table;
bool vnet_hdr;
bool failover_mode;
-} RewriterState;
+};
static void filter_rewriter_failover_mode(RewriterState *s)
{
static void filter_rewriter_flush(NetFilterState *nf)
{
- RewriterState *s = FILTER_COLO_REWRITER(nf);
+ RewriterState *s = FILTER_REWRITER(nf);
if (!qemu_net_queue_flush(s->incoming_queue)) {
/* Unable to empty the queue, purge remaining packets */
struct tcp_hdr *tcp_pkt;
tcp_pkt = (struct tcp_hdr *)pkt->transport_header;
- if (trace_event_get_state_backends(TRACE_COLO_FILTER_REWRITER_DEBUG)) {
+ if (trace_event_get_state_backends(TRACE_COLO_FILTER_REWRITER_PKT_INFO)) {
trace_colo_filter_rewriter_pkt_info(__func__,
inet_ntoa(pkt->ip->ip_src), inet_ntoa(pkt->ip->ip_dst),
ntohl(tcp_pkt->th_seq), ntohl(tcp_pkt->th_ack),
tcp_pkt->th_flags);
+ }
+ if (trace_event_get_state_backends(
+ TRACE_COLO_FILTER_REWRITER_CONN_OFFSET)) {
trace_colo_filter_rewriter_conn_offset(conn->offset);
}
tcp_pkt->th_ack = htonl(ntohl(tcp_pkt->th_ack) + conn->offset);
net_checksum_calculate((uint8_t *)pkt->data + pkt->vnet_hdr_len,
- pkt->size - pkt->vnet_hdr_len);
+ pkt->size - pkt->vnet_hdr_len, CSUM_TCP);
}
/*
tcp_pkt = (struct tcp_hdr *)pkt->transport_header;
- if (trace_event_get_state_backends(TRACE_COLO_FILTER_REWRITER_DEBUG)) {
+ if (trace_event_get_state_backends(TRACE_COLO_FILTER_REWRITER_PKT_INFO)) {
trace_colo_filter_rewriter_pkt_info(__func__,
inet_ntoa(pkt->ip->ip_src), inet_ntoa(pkt->ip->ip_dst),
ntohl(tcp_pkt->th_seq), ntohl(tcp_pkt->th_ack),
tcp_pkt->th_flags);
+ }
+ if (trace_event_get_state_backends(
+ TRACE_COLO_FILTER_REWRITER_CONN_OFFSET)) {
trace_colo_filter_rewriter_conn_offset(conn->offset);
}
tcp_pkt->th_seq = htonl(ntohl(tcp_pkt->th_seq) - conn->offset);
net_checksum_calculate((uint8_t *)pkt->data + pkt->vnet_hdr_len,
- pkt->size - pkt->vnet_hdr_len);
+ pkt->size - pkt->vnet_hdr_len, CSUM_TCP);
}
}
int iovcnt,
NetPacketSent *sent_cb)
{
- RewriterState *s = FILTER_COLO_REWRITER(nf);
+ RewriterState *s = FILTER_REWRITER(nf);
Connection *conn;
ConnectionKey key;
Packet *pkt;
vnet_hdr_len = nf->netdev->vnet_hdr_len;
}
- pkt = packet_new(buf, size, vnet_hdr_len);
- g_free(buf);
+ pkt = packet_new_nocopy(buf, size, vnet_hdr_len);
/*
* if we get tcp packet
*/
if (pkt && is_tcp_packet(pkt)) {
- fill_connection_key(pkt, &key);
-
- if (sender == nf->netdev) {
- /*
- * We need make tcp TX and RX packet
- * into one connection.
- */
- reverse_connection_key(&key);
- }
+ fill_connection_key(pkt, &key, sender == nf->netdev);
/* After failover we needn't change new TCP packet */
if (s->failover_mode &&
static void colo_rewriter_handle_event(NetFilterState *nf, int event,
Error **errp)
{
- RewriterState *rs = FILTER_COLO_REWRITER(nf);
+ RewriterState *rs = FILTER_REWRITER(nf);
switch (event) {
case COLO_EVENT_CHECKPOINT:
static void colo_rewriter_cleanup(NetFilterState *nf)
{
- RewriterState *s = FILTER_COLO_REWRITER(nf);
+ RewriterState *s = FILTER_REWRITER(nf);
/* flush packets */
if (s->incoming_queue) {
filter_rewriter_flush(nf);
g_free(s->incoming_queue);
}
+
+ g_hash_table_destroy(s->connection_track_table);
}
static void colo_rewriter_setup(NetFilterState *nf, Error **errp)
{
- RewriterState *s = FILTER_COLO_REWRITER(nf);
+ RewriterState *s = FILTER_REWRITER(nf);
s->connection_track_table = g_hash_table_new_full(connection_key_hash,
connection_key_equal,
g_free,
- connection_destroy);
+ NULL);
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);
+ RewriterState *s = FILTER_REWRITER(obj);
return s->vnet_hdr;
}
bool value,
Error **errp)
{
- RewriterState *s = FILTER_COLO_REWRITER(obj);
+ RewriterState *s = FILTER_REWRITER(obj);
s->vnet_hdr = value;
}
static void filter_rewriter_init(Object *obj)
{
- RewriterState *s = FILTER_COLO_REWRITER(obj);
+ RewriterState *s = FILTER_REWRITER(obj);
s->vnet_hdr = false;
s->failover_mode = FAILOVER_MODE_OFF;
- object_property_add_bool(obj, "vnet_hdr_support",
- filter_rewriter_get_vnet_hdr,
- filter_rewriter_set_vnet_hdr);
}
static void colo_rewriter_class_init(ObjectClass *oc, void *data)
{
NetFilterClass *nfc = NETFILTER_CLASS(oc);
+ object_class_property_add_bool(oc, "vnet_hdr_support",
+ filter_rewriter_get_vnet_hdr,
+ filter_rewriter_set_vnet_hdr);
+
nfc->setup = colo_rewriter_setup;
nfc->cleanup = colo_rewriter_cleanup;
nfc->receive_iov = colo_rewriter_receive_iov;