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/*
* Copyright (c) 2017 Cisco and/or its affiliates.
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <boost/algorithm/string.hpp>
#include "vom/bond_interface.hpp"
#include "vom/bond_member.hpp"
#include "vom/interface_factory.hpp"
#include "vom/sub_interface.hpp"
#include "vom/tap_interface.hpp"
namespace VOM {
std::shared_ptr<interface>
interface_factory::new_interface(const vapi_payload_sw_interface_details& vd)
{
std::shared_ptr<interface> sp;
/**
* Determine the interface type from the name and VLAN attributes
*/
std::string name = reinterpret_cast<const char*>(vd.interface_name);
interface::type_t type = interface::type_t::from_string(name);
interface::admin_state_t state =
interface::admin_state_t::from_int(vd.admin_up_down);
handle_t hdl(vd.sw_if_index);
l2_address_t l2_address(vd.l2_address, vd.l2_address_length);
std::string tag = "";
sp = interface::find(hdl);
if (sp) {
sp->set(state);
sp->set(l2_address);
if (!tag.empty())
sp->set(tag);
return sp;
}
/*
* If here, Fall back to old routine
*/
if (interface::type_t::AFPACKET == type) {
/*
* need to strip VPP's "host-" prefix from the interface name
*/
name = name.substr(5);
}
/**
* if the tag is set, then we wrote that to specify a name to make
* the interface type more specific
*/
if (vd.tag[0] != 0) {
tag = std::string(reinterpret_cast<const char*>(vd.tag));
}
if (!tag.empty() && interface::type_t::LOOPBACK == type) {
name = tag;
type = interface::type_t::from_string(name);
}
/*
* pull out the other special cases
*/
if (interface::type_t::TAP == type || interface::type_t::TAPV2 == type) {
/*
* TAP interfaces
*/
sp = interface::find(hdl);
if (sp && !tag.empty())
sp->set(tag);
} else if ((name.find(".") != std::string::npos) && (0 != vd.sub_id)) {
/*
* Sub-interface
* split the name into the parent and VLAN
*/
std::vector<std::string> parts;
std::shared_ptr<interface> parent;
boost::split(parts, name, boost::is_any_of("."));
if ((parent = interface::find(parts[0])))
sp = sub_interface(*parent, state, vd.sub_id).singular();
else {
interface parent_itf(parts[0], type, state, tag);
sp = sub_interface(parent_itf, state, vd.sub_id).singular();
}
} else if (interface::type_t::VXLAN == type) {
/*
* there's not enough information in a SW interface record to
* construct a VXLAN tunnel. so skip it. They have
* their own dump routines
*/
} else if (interface::type_t::VHOST == type) {
/*
* vhost interface already exist in db, look for it using
* sw_if_index
*/
} else if (interface::type_t::BOND == type) {
sp = bond_interface(name, state, l2_address,
bond_interface::mode_t::UNSPECIFIED)
.singular();
} else {
sp = interface(name, type, state, tag).singular();
sp->set(l2_address);
}
/*
* set the handle on the intterface - N.B. this is the sigluar instance
* not a stack local.
*/
if (sp)
sp->set(hdl);
return (sp);
}
std::shared_ptr<interface>
interface_factory::new_vhost_user_interface(
const vapi_payload_sw_interface_vhost_user_details& vd)
{
std::shared_ptr<interface> sp;
std::string name = reinterpret_cast<const char*>(vd.sock_filename);
interface::type_t type = interface::type_t::from_string(name);
handle_t hdl(vd.sw_if_index);
sp = interface(name, type, interface::admin_state_t::DOWN).singular();
sp->set(hdl);
return (sp);
}
std::shared_ptr<interface>
interface_factory::new_af_packet_interface(
const vapi_payload_af_packet_details& vd)
{
std::shared_ptr<interface> sp;
std::string name = reinterpret_cast<const char*>(vd.host_if_name);
handle_t hdl(vd.sw_if_index);
sp =
interface(name, interface::type_t::AFPACKET, interface::admin_state_t::DOWN)
.singular();
sp->set(hdl);
return (sp);
}
std::shared_ptr<tap_interface>
interface_factory::new_tap_interface(
const vapi_payload_sw_interface_tap_details& vd)
{
std::shared_ptr<tap_interface> sp;
std::string name = reinterpret_cast<const char*>(vd.dev_name);
handle_t hdl(vd.sw_if_index);
sp = tap_interface(name, interface::type_t::TAP, interface::admin_state_t::UP,
route::prefix_t::ZERO)
.singular();
sp->set(hdl);
return (sp);
}
std::shared_ptr<tap_interface>
interface_factory::new_tap_v2_interface(
const vapi_payload_sw_interface_tap_v2_details& vd)
{
std::shared_ptr<tap_interface> sp;
handle_t hdl(vd.sw_if_index);
std::string name = reinterpret_cast<const char*>(vd.host_if_name);
route::prefix_t pfx(route::prefix_t::ZERO);
boost::asio::ip::address addr;
if (vd.host_ip4_prefix_len)
pfx =
route::prefix_t(0, (uint8_t*)vd.host_ip4_addr, vd.host_ip4_prefix_len);
else if (vd.host_ip6_prefix_len)
pfx =
route::prefix_t(1, (uint8_t*)vd.host_ip6_addr, vd.host_ip6_prefix_len);
l2_address_t l2_address(vd.host_mac_addr, 6);
sp = tap_interface(name, interface::type_t::TAPV2,
interface::admin_state_t::UP, pfx, l2_address)
.singular();
sp->set(hdl);
return (sp);
}
std::shared_ptr<bond_interface>
interface_factory::new_bond_interface(
const vapi_payload_sw_interface_bond_details& vd)
{
std::shared_ptr<bond_interface> sp;
std::string name = reinterpret_cast<const char*>(vd.interface_name);
handle_t hdl(vd.sw_if_index);
bond_interface::mode_t mode =
bond_interface::mode_t::from_numeric_val(vd.mode);
bond_interface::lb_t lb = bond_interface::lb_t::from_numeric_val(vd.lb);
sp = bond_interface::find(hdl);
if (sp) {
sp->set(mode);
sp->set(lb);
}
return (sp);
}
bond_member
interface_factory::new_bond_member_interface(
const vapi_payload_sw_interface_slave_details& vd)
{
std::shared_ptr<bond_member> sp;
std::string name = reinterpret_cast<const char*>(vd.interface_name);
handle_t hdl(vd.sw_if_index);
bond_member::mode_t mode =
bond_member::mode_t::from_numeric_val(vd.is_passive);
bond_member::rate_t rate =
bond_member::rate_t::from_numeric_val(vd.is_long_timeout);
std::shared_ptr<interface> itf = interface::find(hdl);
bond_member bm(*itf, mode, rate);
return (bm);
}
}; // namespace VOM
/*
* fd.io coding-style-patch-verification: ON
*
* Local Variables:
* eval: (c-set-style "mozilla")
* End:
*/
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