acl_list_cmds.cpp

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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 "vom/acl_list_cmds.hpp"
#include "vom/api_types.hpp"
 
namespace VOM {
namespace ACL {
namespace list_cmds {
/*
 * Jumping through hoops to not expose the VAPI types publically
 */
static void
to_vpp(const l2_rule& rule, vapi_type_macip_acl_rule& payload)
{
  payload.is_permit = (vapi_enum_acl_action)rule.action().value();
  rule.src_ip().to_vpp((uint8_t*)&payload.src_prefix.address.af,
                       (uint8_t*)&payload.src_prefix.address.un,
                       &payload.src_prefix.len);
  rule.mac().to_bytes(payload.src_mac, 6);
  rule.mac_mask().to_bytes(payload.src_mac_mask, 6);
}
 
static void
to_vpp(const l3_rule& rule, vapi_type_acl_rule& payload)
{
  payload.is_permit = (vapi_enum_acl_action)rule.action().value();
  payload.src_prefix = to_api(rule.src());
  payload.dst_prefix = to_api(rule.dst());
 
  payload.proto = (vapi_enum_ip_proto)rule.proto();
  payload.srcport_or_icmptype_first = rule.srcport_or_icmptype_first();
  payload.srcport_or_icmptype_last = rule.srcport_or_icmptype_last();
  payload.dstport_or_icmpcode_first = rule.dstport_or_icmpcode_first();
  payload.dstport_or_icmpcode_last = rule.dstport_or_icmpcode_last();
 
  payload.tcp_flags_mask = rule.tcp_flags_mask();
  payload.tcp_flags_value = rule.tcp_flags_value();
}
 
template<>
rc_t
l3_update_cmd::issue(connection& con)
{
  msg_t req(con.ctx(), m_rules.size(), std::ref(*this));
  uint32_t ii = 0;
 
  auto& payload = req.get_request().get_payload();
  payload.acl_index = m_hw_item.data().value();
  payload.count = m_rules.size();
  memset(payload.tag, 0, sizeof(payload.tag));
  memcpy(
    payload.tag, m_key.c_str(), std::min(m_key.length(), sizeof(payload.tag)));
 
  auto it = m_rules.cbegin();
 
  while (it != m_rules.cend()) {
    to_vpp(*it, payload.r[ii]);
    ++it;
    ++ii;
  }
 
  VAPI_CALL(req.execute());
 
  wait();
 
  if (m_hw_item.rc() == rc_t::OK)
    insert_acl();
 
  return rc_t::OK;
}
 
template<>
rc_t
l3_delete_cmd::issue(connection& con)
{
  msg_t req(con.ctx(), std::ref(*this));
 
  auto& payload = req.get_request().get_payload();
  payload.acl_index = m_hw_item.data().value();
 
  VAPI_CALL(req.execute());
 
  wait();
  m_hw_item.set(rc_t::NOOP);
 
  remove_acl();
 
  return rc_t::OK;
}
 
template<>
rc_t
l3_dump_cmd::issue(connection& con)
{
  m_dump.reset(new msg_t(con.ctx(), std::ref(*this)));
 
  auto& payload = m_dump->get_request().get_payload();
  payload.acl_index = ~0;
 
  VAPI_CALL(m_dump->execute());
 
  wait();
 
  return rc_t::OK;
}
 
template<>
rc_t
l2_update_cmd::issue(connection& con)
{
  msg_t req(con.ctx(), m_rules.size(), std::ref(*this));
  uint32_t ii = 0;
 
  auto& payload = req.get_request().get_payload();
  // payload.acl_index = m_hw_item.data().value();
  payload.count = m_rules.size();
  memset(payload.tag, 0, sizeof(payload.tag));
  memcpy(
    payload.tag, m_key.c_str(), std::min(m_key.length(), sizeof(payload.tag)));
 
  auto it = m_rules.cbegin();
 
  while (it != m_rules.cend()) {
    to_vpp(*it, payload.r[ii]);
    ++it;
    ++ii;
  }
 
  VAPI_CALL(req.execute());
 
  wait();
 
  if (m_hw_item.rc() == rc_t::OK)
    insert_acl();
 
  return rc_t::OK;
}
 
template<>
rc_t
l2_delete_cmd::issue(connection& con)
{
  msg_t req(con.ctx(), std::ref(*this));
 
  auto& payload = req.get_request().get_payload();
  payload.acl_index = m_hw_item.data().value();
 
  VAPI_CALL(req.execute());
 
  wait();
  m_hw_item.set(rc_t::NOOP);
 
  remove_acl();
 
  return rc_t::OK;
}
 
template<>
rc_t
l2_dump_cmd::issue(connection& con)
{
  m_dump.reset(new msg_t(con.ctx(), std::ref(*this)));
 
  auto& payload = m_dump->get_request().get_payload();
  payload.acl_index = ~0;
 
  VAPI_CALL(m_dump->execute());
 
  wait();
 
  return rc_t::OK;
}
 
}; // namespace list_cmds
}; // namespace ACL
}; // namespace VOM
 
/*
 * fd.io coding-style-patch-verification: OFF
 *
 * Local Variables:
 * eval: (c-set-style "mozilla")
 * End:
 */