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3be1d7e0 TG |
1 | /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ |
2 | ||
3 | /*** | |
4 | This file is part of systemd. | |
5 | ||
6 | Copyright 2013 Tom Gundersen <teg@jklm.no> | |
7 | ||
8 | systemd is free software; you can redistribute it and/or modify it | |
9 | under the terms of the GNU Lesser General Public License as published by | |
10 | the Free Software Foundation; either version 2.1 of the License, or | |
11 | (at your option) any later version. | |
12 | ||
13 | systemd is distributed in the hope that it will be useful, but | |
14 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
16 | Lesser General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU Lesser General Public License | |
19 | along with systemd; If not, see <http://www.gnu.org/licenses/>. | |
20 | ***/ | |
21 | ||
22 | #pragma once | |
23 | ||
3be1d7e0 | 24 | #include "list.h" |
3be1d7e0 | 25 | |
fc2f9534 | 26 | typedef struct NetDev NetDev; |
3be1d7e0 TG |
27 | typedef struct NetDevVTable NetDevVTable; |
28 | ||
fc2f9534 LP |
29 | #include "networkd.h" |
30 | #include "networkd-link.h" | |
31 | ||
3be1d7e0 TG |
32 | typedef struct netdev_join_callback netdev_join_callback; |
33 | ||
34 | struct netdev_join_callback { | |
1c4baffc | 35 | sd_netlink_message_handler_t callback; |
3be1d7e0 TG |
36 | Link *link; |
37 | ||
38 | LIST_FIELDS(netdev_join_callback, callbacks); | |
39 | }; | |
40 | ||
41 | typedef enum NetDevKind { | |
42 | NETDEV_KIND_BRIDGE, | |
43 | NETDEV_KIND_BOND, | |
44 | NETDEV_KIND_VLAN, | |
45 | NETDEV_KIND_MACVLAN, | |
f33ff02b | 46 | NETDEV_KIND_MACVTAP, |
c4a5ddc9 | 47 | NETDEV_KIND_IPVLAN, |
3be1d7e0 TG |
48 | NETDEV_KIND_VXLAN, |
49 | NETDEV_KIND_IPIP, | |
50 | NETDEV_KIND_GRE, | |
1af2536a | 51 | NETDEV_KIND_GRETAP, |
b16492f8 SS |
52 | NETDEV_KIND_IP6GRE, |
53 | NETDEV_KIND_IP6GRETAP, | |
3be1d7e0 TG |
54 | NETDEV_KIND_SIT, |
55 | NETDEV_KIND_VETH, | |
56 | NETDEV_KIND_VTI, | |
9011ce77 | 57 | NETDEV_KIND_VTI6, |
855ee1a1 | 58 | NETDEV_KIND_IP6TNL, |
3be1d7e0 TG |
59 | NETDEV_KIND_DUMMY, |
60 | NETDEV_KIND_TUN, | |
61 | NETDEV_KIND_TAP, | |
62 | _NETDEV_KIND_MAX, | |
63 | _NETDEV_KIND_INVALID = -1 | |
64 | } NetDevKind; | |
65 | ||
66 | typedef enum NetDevState { | |
67 | NETDEV_STATE_FAILED, | |
68 | NETDEV_STATE_CREATING, | |
69 | NETDEV_STATE_READY, | |
70 | NETDEV_STATE_LINGER, | |
71 | _NETDEV_STATE_MAX, | |
72 | _NETDEV_STATE_INVALID = -1, | |
73 | } NetDevState; | |
74 | ||
aa9f1140 TG |
75 | typedef enum NetDevCreateType { |
76 | NETDEV_CREATE_INDEPENDENT, | |
77 | NETDEV_CREATE_MASTER, | |
78 | NETDEV_CREATE_STACKED, | |
79 | _NETDEV_CREATE_MAX, | |
80 | _NETDEV_CREATE_INVALID = -1, | |
81 | } NetDevCreateType; | |
82 | ||
3be1d7e0 TG |
83 | struct NetDev { |
84 | Manager *manager; | |
85 | ||
86 | int n_ref; | |
87 | ||
88 | char *filename; | |
89 | ||
90 | Condition *match_host; | |
91 | Condition *match_virt; | |
92 | Condition *match_kernel; | |
93 | Condition *match_arch; | |
94 | ||
aa9f1140 TG |
95 | NetDevState state; |
96 | NetDevKind kind; | |
3be1d7e0 TG |
97 | char *description; |
98 | char *ifname; | |
3be1d7e0 | 99 | struct ether_addr *mac; |
aa9f1140 | 100 | size_t mtu; |
3be1d7e0 | 101 | int ifindex; |
3be1d7e0 TG |
102 | |
103 | LIST_HEAD(netdev_join_callback, callbacks); | |
104 | }; | |
105 | ||
aa9f1140 TG |
106 | #include "networkd-netdev-bridge.h" |
107 | #include "networkd-netdev-bond.h" | |
108 | #include "networkd-netdev-vlan.h" | |
109 | #include "networkd-netdev-macvlan.h" | |
c4a5ddc9 | 110 | #include "networkd-netdev-ipvlan.h" |
aa9f1140 TG |
111 | #include "networkd-netdev-vxlan.h" |
112 | #include "networkd-netdev-veth.h" | |
113 | #include "networkd-netdev-tunnel.h" | |
114 | #include "networkd-netdev-dummy.h" | |
115 | #include "networkd-netdev-tuntap.h" | |
116 | ||
3be1d7e0 | 117 | struct NetDevVTable { |
aa9f1140 TG |
118 | /* How much memory does an object of this unit type need */ |
119 | size_t object_size; | |
120 | ||
121 | /* Config file sections this netdev kind understands, separated | |
122 | * by NUL chars */ | |
123 | const char *sections; | |
3be1d7e0 | 124 | |
aa9f1140 TG |
125 | /* This should reset all type-specific variables. This should |
126 | * not allocate memory, and is called with zero-initialized | |
127 | * data. It should hence only initialize variables that need | |
128 | * to be set != 0. */ | |
129 | void (*init)(NetDev *n); | |
3be1d7e0 | 130 | |
aa9f1140 TG |
131 | /* This should free all kind-specific variables. It should be |
132 | * idempotent. */ | |
133 | void (*done)(NetDev *n); | |
134 | ||
135 | /* fill in message to create netdev */ | |
1c4baffc | 136 | int (*fill_message_create)(NetDev *netdev, Link *link, sd_netlink_message *message); |
aa9f1140 TG |
137 | |
138 | /* specifies if netdev is independent, or a master device or a stacked device */ | |
139 | NetDevCreateType create_type; | |
3be1d7e0 TG |
140 | |
141 | /* create netdev, if not done via rtnl */ | |
142 | int (*create)(NetDev *netdev); | |
143 | ||
540eb5f0 SS |
144 | /* perform additional configuration after netdev has been createad */ |
145 | int (*post_create)(NetDev *netdev, Link *link, sd_netlink_message *message); | |
146 | ||
3be1d7e0 TG |
147 | /* verify that compulsory configuration options were specified */ |
148 | int (*config_verify)(NetDev *netdev, const char *filename); | |
149 | }; | |
150 | ||
151 | extern const NetDevVTable * const netdev_vtable[_NETDEV_KIND_MAX]; | |
152 | ||
153 | #define NETDEV_VTABLE(n) netdev_vtable[(n)->kind] | |
154 | ||
aa9f1140 TG |
155 | /* For casting a netdev into the various netdev kinds */ |
156 | #define DEFINE_CAST(UPPERCASE, MixedCase) \ | |
157 | static inline MixedCase* UPPERCASE(NetDev *n) { \ | |
158 | if (_unlikely_(!n || n->kind != NETDEV_KIND_##UPPERCASE)) \ | |
159 | return NULL; \ | |
160 | \ | |
161 | return (MixedCase*) n; \ | |
162 | } | |
163 | ||
164 | /* For casting the various netdev kinds into a netdev */ | |
165 | #define NETDEV(n) (&(n)->meta) | |
166 | ||
167 | DEFINE_CAST(BRIDGE, Bridge); | |
168 | DEFINE_CAST(BOND, Bond); | |
169 | DEFINE_CAST(VLAN, VLan); | |
170 | DEFINE_CAST(MACVLAN, MacVlan); | |
f33ff02b | 171 | DEFINE_CAST(MACVTAP, MacVlan); |
c4a5ddc9 | 172 | DEFINE_CAST(IPVLAN, IPVlan); |
aa9f1140 TG |
173 | DEFINE_CAST(VXLAN, VxLan); |
174 | DEFINE_CAST(IPIP, Tunnel); | |
175 | DEFINE_CAST(GRE, Tunnel); | |
1af2536a | 176 | DEFINE_CAST(GRETAP, Tunnel); |
b16492f8 SS |
177 | DEFINE_CAST(IP6GRE, Tunnel); |
178 | DEFINE_CAST(IP6GRETAP, Tunnel); | |
aa9f1140 TG |
179 | DEFINE_CAST(SIT, Tunnel); |
180 | DEFINE_CAST(VTI, Tunnel); | |
9011ce77 | 181 | DEFINE_CAST(VTI6, Tunnel); |
855ee1a1 | 182 | DEFINE_CAST(IP6TNL, Tunnel); |
aa9f1140 TG |
183 | DEFINE_CAST(VETH, Veth); |
184 | DEFINE_CAST(DUMMY, Dummy); | |
185 | DEFINE_CAST(TUN, TunTap); | |
186 | DEFINE_CAST(TAP, TunTap); | |
187 | ||
3be1d7e0 TG |
188 | int netdev_load(Manager *manager); |
189 | void netdev_drop(NetDev *netdev); | |
190 | ||
191 | NetDev *netdev_unref(NetDev *netdev); | |
192 | NetDev *netdev_ref(NetDev *netdev); | |
193 | ||
194 | DEFINE_TRIVIAL_CLEANUP_FUNC(NetDev*, netdev_unref); | |
195 | #define _cleanup_netdev_unref_ _cleanup_(netdev_unrefp) | |
196 | ||
197 | int netdev_get(Manager *manager, const char *name, NetDev **ret); | |
1c4baffc TG |
198 | int netdev_set_ifindex(NetDev *netdev, sd_netlink_message *newlink); |
199 | int netdev_enslave(NetDev *netdev, Link *link, sd_netlink_message_handler_t callback); | |
3be1d7e0 | 200 | int netdev_get_mac(const char *ifname, struct ether_addr **ret); |
1c4baffc | 201 | int netdev_join(NetDev *netdev, Link *link, sd_netlink_message_handler_t cb); |
3be1d7e0 TG |
202 | |
203 | const char *netdev_kind_to_string(NetDevKind d) _const_; | |
204 | NetDevKind netdev_kind_from_string(const char *d) _pure_; | |
205 | ||
206 | int config_parse_netdev_kind(const char *unit, const char *filename, unsigned line, const char *section, unsigned section_line, const char *lvalue, int ltype, const char *rvalue, void *data, void *userdata); | |
207 | ||
208 | /* gperf */ | |
209 | const struct ConfigPerfItem* network_netdev_gperf_lookup(const char *key, unsigned length); | |
210 | ||
211 | /* Macros which append INTERFACE= to the message */ | |
212 | ||
f2341e0a LP |
213 | #define log_netdev_full(netdev, level, error, ...) \ |
214 | ({ \ | |
215 | NetDev *_n = (netdev); \ | |
216 | _n ? log_object_internal(level, error, __FILE__, __LINE__, __func__, "INTERFACE=", _n->ifname, ##__VA_ARGS__) : \ | |
217 | log_internal(level, error, __FILE__, __LINE__, __func__, ##__VA_ARGS__); \ | |
218 | }) | |
6a7a4e4d LP |
219 | |
220 | #define log_netdev_debug(netdev, ...) log_netdev_full(netdev, LOG_DEBUG, 0, ##__VA_ARGS__) | |
221 | #define log_netdev_info(netdev, ...) log_netdev_full(netdev, LOG_INFO, 0, ##__VA_ARGS__) | |
222 | #define log_netdev_notice(netdev, ...) log_netdev_full(netdev, LOG_NOTICE, 0, ##__VA_ARGS__) | |
223 | #define log_netdev_warning(netdev, ...) log_netdev_full(netdev, LOG_WARNING, 0, ## __VA_ARGS__) | |
224 | #define log_netdev_error(netdev, ...) log_netdev_full(netdev, LOG_ERR, 0, ##__VA_ARGS__) | |
225 | ||
226 | #define log_netdev_debug_errno(netdev, error, ...) log_netdev_full(netdev, LOG_DEBUG, error, ##__VA_ARGS__) | |
227 | #define log_netdev_info_errno(netdev, error, ...) log_netdev_full(netdev, LOG_INFO, error, ##__VA_ARGS__) | |
228 | #define log_netdev_notice_errno(netdev, error, ...) log_netdev_full(netdev, LOG_NOTICE, error, ##__VA_ARGS__) | |
229 | #define log_netdev_warning_errno(netdev, error, ...) log_netdev_full(netdev, LOG_WARNING, error, ##__VA_ARGS__) | |
230 | #define log_netdev_error_errno(netdev, error, ...) log_netdev_full(netdev, LOG_ERR, error, ##__VA_ARGS__) | |
98b32556 | 231 | |
f2341e0a LP |
232 | #define LOG_NETDEV_MESSAGE(netdev, fmt, ...) "MESSAGE=%s: " fmt, (netdev)->ifname, ##__VA_ARGS__ |
233 | #define LOG_NETDEV_INTERFACE(netdev) "INTERFACE=%s", (netdev)->ifname |