Hi,
how can I use function *send_openflow_packet**(const datapathid&
datapath_id, uint32_t buffer_id, const ofp_action_header actions[], uint16_t
actions_len, uint16_t in_port, bool block)* to change the destination MAC
address of the 1st packet of some flow, and then send this modified packet
to the desired out_port ?
I had tried using action_list to do this, but it seemed to be not work. The
following is partial code.
* ofp_action_list ofpall;*
*
*
* ofp_action *ofp1 = new ofp_action();*
* ofp1->action_raw.reset(new uint8_t[sizeof(ofp_action_dl_addr)]);*
* of_action_dl_addr oada;*
* oada.type = OFPAT_SET_DL_DST;*
* oada.len = sizeof(ofp_action_dl_addr);*
* memcpy(oada.dl_addr, fns_server_attr.dl_src, ethernetaddr::LEN);*
* oada.pack((ofp_action_dl_addr*)
openflow_pack::get_header(ofp1->action_raw));*
* ofpall.action_list.push_back(*ofp1);*
*
*
* ofp_action *ofp2 = new ofp_action();*
* ofp2->action_raw.reset(new uint8_t[sizeof(ofp_action_output)]);*
* of_action_output oao;*
* oao.type = OFPAT_OUTPUT;*
* oao.len = sizeof(ofp_action_output);*
* oao.port = fns_server_attr.in_port;*
* oao.max_len = 0;*
* oao.pack((ofp_action_output*)
openflow_pack::get_header(ofp2->action_raw));*
* ofpall.action_list.push_back(*ofp2);*
*
*
* size_t size = sizeof(ofp_flow_mod) + ofpall.mem_size();*
* boost::shared_array<uint8_t> of_raw(new uint8_t[size]);*
* of_raw.reset(new uint8_t[size]);*
* of_flow_mod ofm;*
* ofm.header = openflow_pack::header(OFPT_FLOW_MOD, size);*
* ofm.match = flow.get_exact_match();*
* ofm.match.wildcards = htonl(0);*
* ofm.match.in_port = flow.in_port;*
* ofm.command = OFPFC_ADD;*
* ofm.buffer_id = htonl(-1);*
* ofm.idle_timeout = htons(5);*
* ofm.hard_timeout = htons(OFP_FLOW_PERMANENT);*
* ofm.priority = htons(OFP_DEFAULT_PRIORITY);*
* ofm.flags = htons(ofd_flow_mod_flags());*
* ofm.pack((ofp_flow_mod*) openflow_pack::get_pointer(of_raw));*
* ofpall.pack(openflow_pack::get_pointer(of_raw,
sizeof(ofp_flow_mod)));*
* send_openflow_command(pi.datapath_id, of_raw, true);*
*
*
* if (buffer_id == UINT32_MAX) {*
* send_openflow_packet(pi.datapath_id, *pi.get_buffer(),*
* ofm.actions, ofpall.mem_size(),*
* pi.in_port, true);*
* } else {*
* send_openflow_packet(pi.datapath_id, buffer_id,*
* ofm.actions, ofpall.mem_size(),*
* pi.in_port, true);*
* }*
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