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"

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 = rule.action().value();
  rule.src_ip().to_vpp(&payload.is_ipv6, payload.src_ip_addr,
                       &payload.src_ip_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 = rule.action().value();
  rule.src().to_vpp(&payload.is_ipv6, payload.src_ip_addr,
                    &payload.src_ip_prefix_len);
  rule.dst().to_vpp(&payload.is_ipv6, payload.dst_ip_addr,
                    &payload.dst_ip_prefix_len);

  payload.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());

  m_hw_item = 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());

  m_hw_item = 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: ON
 *
 * Local Variables:
 * eval: (c-set-style "mozilla")
 * End:
 */