net/openvswitch/flow_netlink.c

53 static bool actions_may_change_flow(const struct nlattr *actions)
58 	nla_for_each_nested(nla, actions, rem) {
2335 static void ovs_nla_free_nested_actions(const struct nlattr *actions, int len);
2359 		/* The real list of actions follows this attribute. */
2384 		/* The real list of actions follows this attribute. */
2404 static void ovs_nla_free_nested_actions(const struct nlattr *actions, int len)
2409 	/* Whenever new actions are added, the need to update this
2414 	if (!actions)
2417 	nla_for_each_attr(a, actions, len, rem) {
2451 	ovs_nla_free_nested_actions(sf_acts->actions, sf_acts->actions_len);
2474 	int next_offset = offsetof(struct sw_flow_actions, actions) +
2495 	memcpy(acts->actions, (*sfa)->actions, (*sfa)->actions_len);
2551 	struct nlattr *a = (struct nlattr *) ((unsigned char *)sfa->actions +
2572 	const struct nlattr *probability, *actions;
2591 	actions = attrs[OVS_SAMPLE_ATTR_ACTIONS];
2592 	if (!actions || (nla_len(actions) && nla_len(actions) < NLA_HDRLEN))
2602 	 * may be modified, the actions can be executed in place.
2605 	 * Set 'clone_action->exec' to true if the actions can be
2611 	arg.exec = last || !actions_may_change_flow(actions);
2619 	err = __ovs_nla_copy_actions(net, actions, key, sfa,
2641 	const struct nlattr *a, *actions;
2665 	actions = attrs[OVS_DEC_TTL_ATTR_ACTION];
2666 	if (!actions || (nla_len(actions) && nla_len(actions) < NLA_HDRLEN)) {
2667 		OVS_NLERR(log, "Missing valid actions attribute.");
2679 	err = __ovs_nla_copy_actions(net, actions, key, sfa, eth_type,
3022 	/* Convert non-masked non-tunnel set actions to masked set actions. */
3112 	/* validation done, copy the nested actions. */
3337 			/* Disallow subsequent L2.5+ set actions and mpls_pop
3338 			 * actions once the last MPLS label in the packet is
3340 			 * the new eth type is valid and thus set actions could
3344 			 * Support for these actions is planned using packet
3541 	struct nlattr *actions;
3549 	actions = nla_next(sample_arg, &rem);
3562 	err = ovs_nla_put_actions(actions, rem, skb);