summaryrefslogtreecommitdiff
path: root/src/network/networkd.h
blob: 7c23793cf92557d1c86c16cf614b3653cd003191 (plain)
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
/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/

/***
  This file is part of systemd.

  Copyright 2013 Tom Gundersen <teg@jklm.no>

  systemd is free software; you can redistribute it and/or modify it
  under the terms of the GNU Lesser General Public License as published by
  the Free Software Foundation; either version 2.1 of the License, or
  (at your option) any later version.

  systemd is distributed in the hope that it will be useful, but
  WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  Lesser General Public License for more details.

  You should have received a copy of the GNU Lesser General Public License
  along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/

#pragma once

#include <arpa/inet.h>
#include <linux/rtnetlink.h>

#include "sd-event.h"
#include "sd-rtnl.h"
#include "udev.h"

#include "rtnl-util.h"
#include "hashmap.h"
#include "list.h"

typedef struct Network Network;
typedef struct Link Link;
typedef struct Address Address;
typedef struct Route Route;
typedef struct Manager Manager;

struct Network {
        Manager *manager;

        char *filename;

        struct ether_addr *match_mac;
        char *match_path;
        char *match_driver;
        char *match_type;
        char *match_name;

        char *description;

        LIST_HEAD(Address, addresses);
        LIST_HEAD(Route, routes);

        LIST_FIELDS(Network, networks);
};

struct Address {
        Network *network;

        unsigned char family;
        unsigned char prefixlen;
        char *label;

        struct in_addr netmask;

        union {
                struct in_addr in;
                struct in6_addr in6;
        } in_addr;

        LIST_FIELDS(Address, addresses);
};

struct Route {
        Network *network;

        unsigned char family;

        union {
                struct in_addr in;
                struct in6_addr in6;
        } in_addr;

        LIST_FIELDS(Route, routes);
};

typedef enum LinkState {
        LINK_STATE_SET_ADDRESSES,
        LINK_STATE_ADDRESSES_SET,
        LINK_STATE_SET_ROUTES,
        LINK_STATE_ROUTES_SET,
        LINK_STATE_CONFIGURED,
        LINK_STATE_FAILED,
        _LINK_STATE_MAX,
        _LINK_STATE_INVALID = -1
} LinkState;

struct Link {
        Manager *manager;

        int ifindex;
        struct ether_addr mac;

        unsigned flags;

        Network *network;

        LinkState state;

        unsigned rtnl_messages;
};

struct Manager {
        sd_rtnl *rtnl;
        sd_event *event;
        struct udev *udev;
        struct udev_monitor *udev_monitor;
        sd_event_source *udev_event_source;

        Hashmap *links;
        LIST_HEAD(Network, networks);

        char **network_dirs;
        usec_t network_dirs_ts_usec;
};

/* Manager */

int manager_new(Manager **ret);
void manager_free(Manager *m);

int manager_udev_enumerate_links(Manager *m);
int manager_udev_listen(Manager *m);

int manager_rtnl_listen(Manager *m);

DEFINE_TRIVIAL_CLEANUP_FUNC(Manager*, manager_free);
#define _cleanup_manager_free_ _cleanup_(manager_freep)

/* Network */

int network_load(Manager *manager);
bool network_should_reload(Manager *manager);

void network_free(Network *network);

DEFINE_TRIVIAL_CLEANUP_FUNC(Network*, network_free);
#define _cleanup_network_free_ _cleanup_(network_freep)

int network_get(Manager *manager, struct udev_device *device, Network **ret);
int network_apply(Manager *manager, Network *network, Link *link);

const struct ConfigPerfItem* network_gperf_lookup(const char *key, unsigned length);

/* Route */
int route_new(Network *network, Route **ret);
void route_free(Route *route);
int route_configure(Route *route, Link *link, sd_rtnl_message_handler_t callback);

DEFINE_TRIVIAL_CLEANUP_FUNC(Route*, route_free);
#define _cleanup_route_free_ _cleanup_(route_freep)

int config_parse_gateway(const char *unit, const char *filename, unsigned line,
                         const char *section, const char *lvalue, int ltype,
                         const char *rvalue, void *data, void *userdata);

/* Address */
int address_new(Network *network, Address **ret);
void address_free(Address *address);
int address_configure(Address *address, Link *link, sd_rtnl_message_handler_t callback);

DEFINE_TRIVIAL_CLEANUP_FUNC(Address*, address_free);
#define _cleanup_address_free_ _cleanup_(address_freep)

int config_parse_address(const char *unit, const char *filename, unsigned line,
                         const char *section, const char *lvalue, int ltype,
                         const char *rvalue, void *data, void *userdata);

/* Link */

int link_new(Manager *manager, struct udev_device *device, Link **ret);
void link_free(Link *link);
int link_add(Manager *manager, struct udev_device *device);
int link_configure(Link *link);

DEFINE_TRIVIAL_CLEANUP_FUNC(Link*, link_free);
#define _cleanup_link_free_ _cleanup_(link_freep)