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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.hpp"
#include "vom/acl_list_cmds.hpp"
#include "vom/logger.hpp"
#include "vom/singular_db_funcs.hpp"
namespace VOM {
namespace ACL {
template <>
l2_list::event_handler::event_handler()
{
OM::register_listener(this);
inspect::register_handler({ "l2-acl-list" }, "L2 ACL lists", this);
}
template <>
void
l2_list::event_handler::handle_populate(const client_db::key_t& key)
{
/* hack to get this function instantiated */
m_evh.order();
/*
* dump VPP Bridge domains
*/
std::shared_ptr<list_cmds::l2_dump_cmd> cmd =
std::make_shared<list_cmds::l2_dump_cmd>();
HW::enqueue(cmd);
HW::write();
for (auto& record : *cmd) {
auto& payload = record.get_payload();
const handle_t hdl(payload.acl_index);
l2_list acl(hdl, std::string(reinterpret_cast<const char*>(payload.tag)));
for (unsigned int ii = 0; ii < payload.count; ii++) {
const route::prefix_t pfx(payload.r[ii].is_ipv6,
payload.r[ii].src_ip_addr,
payload.r[ii].src_ip_prefix_len);
l2_rule rule(ii, action_t::from_int(payload.r[ii].is_permit), pfx,
{ payload.r[ii].src_mac }, { payload.r[ii].src_mac_mask });
acl.insert(rule);
}
VOM_LOG(log_level_t::DEBUG) << "dump: " << acl.to_string();
/*
* Write each of the discovered ACLs into the OM,
* but disable the HW Command q whilst we do, so that no
* commands are sent to VPP
*/
OM::commit(key, acl);
}
}
template <>
void
l2_list::event_handler::show(std::ostream& os)
{
db_dump(m_db, os);
}
template <>
l3_list::event_handler::event_handler()
{
OM::register_listener(this);
inspect::register_handler({ "l3-acl-list" }, "L3 ACL lists", this);
}
template <>
void
l3_list::event_handler::handle_populate(const client_db::key_t& key)
{
/* hack to get this function instantiated */
m_evh.order();
/*
* dump L3 ACLs Bridge domains
*/
std::shared_ptr<list_cmds::l3_dump_cmd> cmd =
std::make_shared<list_cmds::l3_dump_cmd>();
HW::enqueue(cmd);
HW::write();
for (auto& record : *cmd) {
auto& payload = record.get_payload();
const handle_t hdl(payload.acl_index);
l3_list acl(hdl, std::string(reinterpret_cast<const char*>(payload.tag)));
for (unsigned int ii = 0; ii < payload.count; ii++) {
const route::prefix_t src(payload.r[ii].is_ipv6,
payload.r[ii].src_ip_addr,
payload.r[ii].src_ip_prefix_len);
const route::prefix_t dst(payload.r[ii].is_ipv6,
payload.r[ii].dst_ip_addr,
payload.r[ii].dst_ip_prefix_len);
l3_rule rule(ii, action_t::from_int(payload.r[ii].is_permit), src, dst);
rule.set_proto(payload.r[ii].proto);
rule.set_src_from_port(payload.r[ii].srcport_or_icmptype_first);
rule.set_src_to_port(payload.r[ii].srcport_or_icmptype_last);
rule.set_dst_from_port(payload.r[ii].dstport_or_icmpcode_first);
rule.set_dst_to_port(payload.r[ii].dstport_or_icmpcode_last);
rule.set_tcp_flags_mask(payload.r[ii].tcp_flags_mask);
rule.set_tcp_flags_value(payload.r[ii].tcp_flags_value);
acl.insert(rule);
}
VOM_LOG(log_level_t::DEBUG) << "dump: " << acl.to_string();
/*
* Write each of the discovered ACLs into the OM,
* but disable the HW Command q whilst we do, so that no
* commands are sent to VPP
*/
OM::commit(key, acl);
}
}
template <>
void
l3_list::event_handler::show(std::ostream& os)
{
db_dump(m_db, os);
}
template <>
void
l3_list::update(const l3_list& obj)
{
/*
* always update the instance with the latest rule set
*/
if (rc_t::OK != m_hdl.rc() || obj.m_rules != m_rules) {
HW::enqueue(new list_cmds::l3_update_cmd(m_hdl, m_key, m_rules));
}
/*
* We don't, can't, read the priority from VPP,
* so the is equals check above does not include the priorty.
* but we save it now.
*/
m_rules = obj.m_rules;
}
template <>
void
l2_list::update(const l2_list& obj)
{
/*
* always update the instance with the latest rule set
*/
if (rc_t::OK != m_hdl.rc() || obj.m_rules != m_rules) {
HW::enqueue(new list_cmds::l2_update_cmd(m_hdl, m_key, m_rules));
}
/*
* We don't, can't, read the priority from VPP,
* so the is equals check above does not include the priorty.
* but we save it now.
*/
m_rules = obj.m_rules;
}
/**
* Sweep/reap the object if still stale
*/
template <>
void
l3_list::sweep(void)
{
if (m_hdl) {
HW::enqueue(new list_cmds::l3_delete_cmd(m_hdl));
}
HW::write();
}
template <>
void
l2_list::sweep(void)
{
if (m_hdl) {
HW::enqueue(new list_cmds::l2_delete_cmd(m_hdl));
}
HW::write();
}
/**
* Replay the objects state to HW
*/
template <>
void
l3_list::replay(void)
{
if (m_hdl) {
m_hdl.data().reset();
HW::enqueue(new list_cmds::l3_update_cmd(m_hdl, m_key, m_rules));
}
}
template <>
void
l2_list::replay(void)
{
if (m_hdl) {
m_hdl.data().reset();
HW::enqueue(new list_cmds::l2_update_cmd(m_hdl, m_key, m_rules));
}
}
}; // namespace ACL
}; // namespace VOM
/*
* fd.io coding-style-patch-verification: ON
*
* Local Variables:
* eval: (c-set-style "mozilla")
* End:
*/
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