1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
|
/*
* 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"
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 <>
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::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:
*/
|
