* Make as much checks as possible on a TCP item, and if a flow is provided, * fill it appropriately with TCP info. * * @param[in] item * Item specification. * @param[in, out] data * Additional data structure to tell next layers we've been here. * * @return * 0 if checks are alright, -1 otherwise. */
| 787 | * 0 if checks are alright, -1 otherwise. |
| 788 | */ |
| 789 | static int |
| 790 | tap_flow_create_tcp(const struct rte_flow_item *item, void *data) |
| 791 | { |
| 792 | struct convert_data *info = (struct convert_data *)data; |
| 793 | const struct rte_flow_item_tcp *spec = item->spec; |
| 794 | const struct rte_flow_item_tcp *mask = item->mask; |
| 795 | struct rte_flow *flow = info->flow; |
| 796 | struct nlmsg *msg; |
| 797 | |
| 798 | /* use default mask if none provided */ |
| 799 | if (!mask) |
| 800 | mask = tap_flow_items[RTE_FLOW_ITEM_TYPE_TCP].default_mask; |
| 801 | /* check that previous ip_proto is compatible with tcp */ |
| 802 | if (info->ip_proto && info->ip_proto != IPPROTO_TCP) |
| 803 | return -1; |
| 804 | /* TC does not support TCP port masking. Only accept if exact match. */ |
| 805 | if ((mask->hdr.src_port && mask->hdr.src_port != 0xffff) || |
| 806 | (mask->hdr.dst_port && mask->hdr.dst_port != 0xffff)) |
| 807 | return -1; |
| 808 | if (!flow) |
| 809 | return 0; |
| 810 | msg = &flow->msg; |
| 811 | tap_nlattr_add8(&msg->nh, TCA_FLOWER_KEY_IP_PROTO, IPPROTO_TCP); |
| 812 | if (!spec) |
| 813 | return 0; |
| 814 | if (mask->hdr.dst_port) |
| 815 | tap_nlattr_add16(&msg->nh, TCA_FLOWER_KEY_TCP_DST, |
| 816 | spec->hdr.dst_port); |
| 817 | if (mask->hdr.src_port) |
| 818 | tap_nlattr_add16(&msg->nh, TCA_FLOWER_KEY_TCP_SRC, |
| 819 | spec->hdr.src_port); |
| 820 | return 0; |
| 821 | } |
| 822 | |
| 823 | /** |
| 824 | * Check support for a given item. |
nothing calls this directly
no test coverage detected