Merge remote-tracking branch 'stefanha/net' into staging

# By Dmitry Fleytman (1) and others
# Via Stefan Hajnoczi
* stefanha/net:
  virtio-net: broken RX filtering logic fixed
  net: fix qemu_flush_queued_packets() in presence of a hub
  net: disallow to specify multicast MAC address

Message-id: 1383928804-28866-1-git-send-email-stefanha@redhat.com
Signed-off-by: NAnthony Liguori <aliguori@amazon.com>

hw/net/virtio-net.c

@@ -657,7 +657,8 @@ static int virtio_net_handle_mac(VirtIONet *n, uint8_t cmd,
     }
 
     if (n->mac_table.in_use + mac_data.entries <= MAC_TABLE_ENTRIES) {
-        s = iov_to_buf(iov, iov_cnt, 0, n->mac_table.macs,
+        s = iov_to_buf(iov, iov_cnt, 0,
+                       &n->mac_table.macs[n->mac_table.in_use * ETH_ALEN],
                        mac_data.entries * ETH_ALEN);
         if (s != mac_data.entries * ETH_ALEN) {
             goto error;

include/net/eth.h

@@ -84,7 +84,7 @@ typedef struct ip_pseudo_header {
 } ip_pseudo_header;
 
 /* IPv6 address */
-struct in6_addr {
+struct in6_address {
     union {
         uint8_t __u6_addr8[16];
     } __in6_u;
@@ -105,8 +105,8 @@ struct ip6_header {
             uint8_t  ip6_un3_ecn;  /* 2 bits ECN, top 6 bits payload length */
         } ip6_un3;
     } ip6_ctlun;
-    struct in6_addr ip6_src;     /* source address */
-    struct in6_addr ip6_dst;     /* destination address */
+    struct in6_address ip6_src;    /* source address */
+    struct in6_address ip6_dst;    /* destination address */
 };
 
 struct ip6_ext_hdr {

net/net.c

@@ -27,6 +27,7 @@
 #include "clients.h"
 #include "hub.h"
 #include "net/slirp.h"
+#include "net/eth.h"
 #include "util.h"
 
 #include "monitor/monitor.h"
@@ -442,7 +443,6 @@ void qemu_flush_queued_packets(NetClientState *nc)
         if (net_hub_flush(nc->peer)) {
             qemu_notify_event();
         }
-        return;
     }
     if (qemu_net_queue_flush(nc->incoming_queue)) {
         /* We emptied the queue successfully, signal to the IO thread to repoll
@@ -689,6 +689,11 @@ static int net_init_nic(const NetClientOptions *opts, const char *name,
         error_report("invalid syntax for ethernet address");
         return -1;
     }
+    if (nic->has_macaddr &&
+        is_multicast_ether_addr(nd->macaddr.a)) {
+        error_report("NIC cannot have multicast MAC address (odd 1st byte)");
+        return -1;
+    }
     qemu_macaddr_default_if_unset(&nd->macaddr);
 
     if (nic->has_vectors) {