openvswitch: Serialize acts with original netlink len
Previously, we used the kernel-internal netlink actions length to calculate the size of messages to serialize back to userspace. However,the sw_flow_actions may not be formatted exactly the same as the actions on the wire, so store the original actions length when de-serializing and re-use the original length when serializing. Signed-off-by: Joe Stringer <joestringer@nicira.com> Acked-by: Pravin B Shelar <pshelar@nicira.com> Acked-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
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committed by
David S. Miller

parent
538e456319
commit
8e2fed1c0c
@@ -1619,6 +1619,7 @@ static struct nlattr *reserve_sfa_size(struct sw_flow_actions **sfa,
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memcpy(acts->actions, (*sfa)->actions, (*sfa)->actions_len);
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acts->actions_len = (*sfa)->actions_len;
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acts->orig_len = (*sfa)->orig_len;
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kfree(*sfa);
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*sfa = acts;
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@@ -2223,6 +2224,7 @@ int ovs_nla_copy_actions(const struct nlattr *attr,
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if (IS_ERR(*sfa))
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return PTR_ERR(*sfa);
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(*sfa)->orig_len = nla_len(attr);
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err = __ovs_nla_copy_actions(attr, key, 0, sfa, key->eth.type,
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key->eth.tci, log);
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if (err)
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