Seastar
High performance C++ framework for concurrent servers
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dhcp.hh
1/*
2 * This file is open source software, licensed to you under the terms
3 * of the Apache License, Version 2.0 (the "License"). See the NOTICE file
4 * distributed with this work for additional information regarding copyright
5 * ownership. You may not use this file except in compliance with the License.
6 *
7 * You may obtain a copy of the License at
8 *
9 * http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing,
12 * software distributed under the License is distributed on an
13 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
14 * KIND, either express or implied. See the License for the
15 * specific language governing permissions and limitations
16 * under the License.
17 */
18/*
19 * Copyright 2014 Cloudius Systems
20 */
21
22#pragma once
23
24#include <seastar/net/ip.hh>
25#include <seastar/util/std-compat.hh>
26
27namespace seastar {
28
29namespace net {
30
31/*
32 * Simplistic DHCP query class.
33 * Due to the nature of the native stack,
34 * it operates on an "ipv4" object instead of,
35 * for example, an interface.
36 */
37class dhcp {
38public:
39 dhcp(ipv4 &);
40 dhcp(dhcp &&) noexcept;
41 ~dhcp();
42
43 static const steady_clock_type::duration default_timeout;
44
45 struct lease {
46 ipv4_address ip;
47 ipv4_address netmask;
48 ipv4_address broadcast;
49
50 ipv4_address gateway;
51 ipv4_address dhcp_server;
52
53 std::vector<ipv4_address> name_servers;
54
55 std::chrono::seconds lease_time;
56 std::chrono::seconds renew_time;
57 std::chrono::seconds rebind_time;
58
59 uint16_t mtu = 0;
60 };
61
63
74 result_type discover(const steady_clock_type::duration & = default_timeout);
75 result_type renew(const lease &, const steady_clock_type::duration & = default_timeout);
76 ip_packet_filter* get_ipv4_filter();
77private:
78 class impl;
79 std::unique_ptr<impl> _impl;
80};
81
82}
83
84}
A representation of a possibly not-yet-computed value.
Definition: future.hh:1240
Definition: dhcp.hh:37
result_type discover(const steady_clock_type::duration &=default_timeout)
Definition: dhcp.hh:45
Definition: ip.hh:276
holds the implementation parts of the metrics layer, do not use directly.
Seastar API namespace.
Definition: abort_on_ebadf.hh:26
Definition: ip.hh:241
Definition: ipv4_address.hh:35