datapath: Make OVS_ACTION_ATTR_USERSPACE action to send packet key

[sliver-openvswitch.git] / datapath / actions.c

diff --git a/datapath/actions.c b/datapath/actions.c
index bc126a7..0a2def6 100644 (file)
--- a/datapath/actions.c
+++ b/datapath/actions.c
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2007-2012 Nicira, Inc.
+ * Copyright (c) 2007-2013 Nicira, Inc.
  *
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of version 2 of the GNU General Public
@@ -132,9 +132,17 @@ static int set_eth_addr(struct sk_buff *skb,
        if (unlikely(err))
                return err;
 
+       if (get_ip_summed(skb) == OVS_CSUM_COMPLETE)
+               skb->csum = csum_sub(skb->csum, csum_partial(eth_hdr(skb),
+                                                            ETH_ALEN * 2, 0));
+
        memcpy(eth_hdr(skb)->h_source, eth_key->eth_src, ETH_ALEN);
        memcpy(eth_hdr(skb)->h_dest, eth_key->eth_dst, ETH_ALEN);
 
+       if (get_ip_summed(skb) == OVS_CSUM_COMPLETE)
+               skb->csum = csum_add(skb->csum, csum_partial(eth_hdr(skb),
+                                                            ETH_ALEN * 2, 0));
+
        return 0;
 }
 
@@ -376,8 +384,10 @@ static int output_userspace(struct datapath *dp, struct sk_buff *skb,
        const struct nlattr *a;
        int rem;
 
+       BUG_ON(!OVS_CB(skb)->pkt_key);
+
        upcall.cmd = OVS_PACKET_CMD_ACTION;
-       upcall.key = &OVS_CB(skb)->flow->key;
+       upcall.key = OVS_CB(skb)->pkt_key;
        upcall.userdata = NULL;
        upcall.portid = 0;
 
@@ -532,7 +542,7 @@ static int do_execute_actions(struct datapath *dp, struct sk_buff *skb,
 
 /* We limit the number of times that we pass into execute_actions()
  * to avoid blowing out the stack in the event that we have a loop. */
-#define MAX_LOOPS 5
+#define MAX_LOOPS 4
 
 struct loop_counter {
        u8 count;               /* Count. */