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5eef597e MP |
1 | /*** |
2 | This file is part of systemd. | |
3 | ||
4 | Copyright 2013 Tom Gundersen <teg@jklm.no> | |
5 | ||
6 | systemd is free software; you can redistribute it and/or modify it | |
7 | under the terms of the GNU Lesser General Public License as published by | |
8 | the Free Software Foundation; either version 2.1 of the License, or | |
9 | (at your option) any later version. | |
10 | ||
11 | systemd is distributed in the hope that it will be useful, but | |
12 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
14 | Lesser General Public License for more details. | |
15 | ||
16 | You should have received a copy of the GNU Lesser General Public License | |
17 | along with systemd; If not, see <http://www.gnu.org/licenses/>. | |
18 | ***/ | |
19 | ||
20 | #pragma once | |
21 | ||
5eef597e | 22 | #include "list.h" |
5eef597e | 23 | |
d9dfd233 | 24 | typedef struct NetDev NetDev; |
5eef597e MP |
25 | typedef struct NetDevVTable NetDevVTable; |
26 | ||
d9dfd233 | 27 | #include "networkd-link.h" |
4c89c718 | 28 | #include "networkd.h" |
d9dfd233 | 29 | |
5eef597e MP |
30 | typedef struct netdev_join_callback netdev_join_callback; |
31 | ||
32 | struct netdev_join_callback { | |
86f210e9 | 33 | sd_netlink_message_handler_t callback; |
5eef597e MP |
34 | Link *link; |
35 | ||
36 | LIST_FIELDS(netdev_join_callback, callbacks); | |
37 | }; | |
38 | ||
39 | typedef enum NetDevKind { | |
40 | NETDEV_KIND_BRIDGE, | |
41 | NETDEV_KIND_BOND, | |
42 | NETDEV_KIND_VLAN, | |
43 | NETDEV_KIND_MACVLAN, | |
7035cd9e | 44 | NETDEV_KIND_MACVTAP, |
e735f4d4 | 45 | NETDEV_KIND_IPVLAN, |
5eef597e MP |
46 | NETDEV_KIND_VXLAN, |
47 | NETDEV_KIND_IPIP, | |
48 | NETDEV_KIND_GRE, | |
e735f4d4 MP |
49 | NETDEV_KIND_GRETAP, |
50 | NETDEV_KIND_IP6GRE, | |
51 | NETDEV_KIND_IP6GRETAP, | |
5eef597e MP |
52 | NETDEV_KIND_SIT, |
53 | NETDEV_KIND_VETH, | |
54 | NETDEV_KIND_VTI, | |
e3bff60a | 55 | NETDEV_KIND_VTI6, |
e735f4d4 | 56 | NETDEV_KIND_IP6TNL, |
5eef597e MP |
57 | NETDEV_KIND_DUMMY, |
58 | NETDEV_KIND_TUN, | |
59 | NETDEV_KIND_TAP, | |
60 | _NETDEV_KIND_MAX, | |
61 | _NETDEV_KIND_INVALID = -1 | |
62 | } NetDevKind; | |
63 | ||
64 | typedef enum NetDevState { | |
65 | NETDEV_STATE_FAILED, | |
66 | NETDEV_STATE_CREATING, | |
67 | NETDEV_STATE_READY, | |
68 | NETDEV_STATE_LINGER, | |
69 | _NETDEV_STATE_MAX, | |
70 | _NETDEV_STATE_INVALID = -1, | |
71 | } NetDevState; | |
72 | ||
73 | typedef enum NetDevCreateType { | |
74 | NETDEV_CREATE_INDEPENDENT, | |
75 | NETDEV_CREATE_MASTER, | |
76 | NETDEV_CREATE_STACKED, | |
77 | _NETDEV_CREATE_MAX, | |
78 | _NETDEV_CREATE_INVALID = -1, | |
79 | } NetDevCreateType; | |
80 | ||
81 | struct NetDev { | |
82 | Manager *manager; | |
83 | ||
84 | int n_ref; | |
85 | ||
86 | char *filename; | |
87 | ||
88 | Condition *match_host; | |
89 | Condition *match_virt; | |
90 | Condition *match_kernel; | |
91 | Condition *match_arch; | |
92 | ||
93 | NetDevState state; | |
94 | NetDevKind kind; | |
95 | char *description; | |
96 | char *ifname; | |
97 | struct ether_addr *mac; | |
98 | size_t mtu; | |
99 | int ifindex; | |
100 | ||
101 | LIST_HEAD(netdev_join_callback, callbacks); | |
102 | }; | |
103 | ||
5eef597e | 104 | #include "networkd-netdev-bond.h" |
4c89c718 MP |
105 | #include "networkd-netdev-bridge.h" |
106 | #include "networkd-netdev-dummy.h" | |
e735f4d4 | 107 | #include "networkd-netdev-ipvlan.h" |
4c89c718 | 108 | #include "networkd-netdev-macvlan.h" |
5eef597e | 109 | #include "networkd-netdev-tunnel.h" |
5eef597e | 110 | #include "networkd-netdev-tuntap.h" |
4c89c718 MP |
111 | #include "networkd-netdev-veth.h" |
112 | #include "networkd-netdev-vlan.h" | |
113 | #include "networkd-netdev-vxlan.h" | |
5eef597e MP |
114 | |
115 | struct NetDevVTable { | |
116 | /* How much memory does an object of this unit type need */ | |
117 | size_t object_size; | |
118 | ||
119 | /* Config file sections this netdev kind understands, separated | |
120 | * by NUL chars */ | |
121 | const char *sections; | |
122 | ||
123 | /* This should reset all type-specific variables. This should | |
124 | * not allocate memory, and is called with zero-initialized | |
125 | * data. It should hence only initialize variables that need | |
126 | * to be set != 0. */ | |
127 | void (*init)(NetDev *n); | |
128 | ||
129 | /* This should free all kind-specific variables. It should be | |
130 | * idempotent. */ | |
131 | void (*done)(NetDev *n); | |
132 | ||
133 | /* fill in message to create netdev */ | |
86f210e9 | 134 | int (*fill_message_create)(NetDev *netdev, Link *link, sd_netlink_message *message); |
5eef597e MP |
135 | |
136 | /* specifies if netdev is independent, or a master device or a stacked device */ | |
137 | NetDevCreateType create_type; | |
138 | ||
139 | /* create netdev, if not done via rtnl */ | |
140 | int (*create)(NetDev *netdev); | |
141 | ||
6300502b MP |
142 | /* perform additional configuration after netdev has been createad */ |
143 | int (*post_create)(NetDev *netdev, Link *link, sd_netlink_message *message); | |
144 | ||
5eef597e MP |
145 | /* verify that compulsory configuration options were specified */ |
146 | int (*config_verify)(NetDev *netdev, const char *filename); | |
147 | }; | |
148 | ||
149 | extern const NetDevVTable * const netdev_vtable[_NETDEV_KIND_MAX]; | |
150 | ||
151 | #define NETDEV_VTABLE(n) netdev_vtable[(n)->kind] | |
152 | ||
153 | /* For casting a netdev into the various netdev kinds */ | |
154 | #define DEFINE_CAST(UPPERCASE, MixedCase) \ | |
155 | static inline MixedCase* UPPERCASE(NetDev *n) { \ | |
156 | if (_unlikely_(!n || n->kind != NETDEV_KIND_##UPPERCASE)) \ | |
157 | return NULL; \ | |
158 | \ | |
159 | return (MixedCase*) n; \ | |
160 | } | |
161 | ||
162 | /* For casting the various netdev kinds into a netdev */ | |
163 | #define NETDEV(n) (&(n)->meta) | |
164 | ||
165 | DEFINE_CAST(BRIDGE, Bridge); | |
166 | DEFINE_CAST(BOND, Bond); | |
167 | DEFINE_CAST(VLAN, VLan); | |
168 | DEFINE_CAST(MACVLAN, MacVlan); | |
7035cd9e | 169 | DEFINE_CAST(MACVTAP, MacVlan); |
e735f4d4 | 170 | DEFINE_CAST(IPVLAN, IPVlan); |
5eef597e MP |
171 | DEFINE_CAST(VXLAN, VxLan); |
172 | DEFINE_CAST(IPIP, Tunnel); | |
173 | DEFINE_CAST(GRE, Tunnel); | |
e735f4d4 MP |
174 | DEFINE_CAST(GRETAP, Tunnel); |
175 | DEFINE_CAST(IP6GRE, Tunnel); | |
176 | DEFINE_CAST(IP6GRETAP, Tunnel); | |
5eef597e MP |
177 | DEFINE_CAST(SIT, Tunnel); |
178 | DEFINE_CAST(VTI, Tunnel); | |
e3bff60a | 179 | DEFINE_CAST(VTI6, Tunnel); |
e735f4d4 | 180 | DEFINE_CAST(IP6TNL, Tunnel); |
5eef597e MP |
181 | DEFINE_CAST(VETH, Veth); |
182 | DEFINE_CAST(DUMMY, Dummy); | |
183 | DEFINE_CAST(TUN, TunTap); | |
184 | DEFINE_CAST(TAP, TunTap); | |
185 | ||
186 | int netdev_load(Manager *manager); | |
187 | void netdev_drop(NetDev *netdev); | |
188 | ||
189 | NetDev *netdev_unref(NetDev *netdev); | |
190 | NetDev *netdev_ref(NetDev *netdev); | |
191 | ||
192 | DEFINE_TRIVIAL_CLEANUP_FUNC(NetDev*, netdev_unref); | |
193 | #define _cleanup_netdev_unref_ _cleanup_(netdev_unrefp) | |
194 | ||
195 | int netdev_get(Manager *manager, const char *name, NetDev **ret); | |
86f210e9 MP |
196 | int netdev_set_ifindex(NetDev *netdev, sd_netlink_message *newlink); |
197 | int netdev_enslave(NetDev *netdev, Link *link, sd_netlink_message_handler_t callback); | |
5eef597e | 198 | int netdev_get_mac(const char *ifname, struct ether_addr **ret); |
86f210e9 | 199 | int netdev_join(NetDev *netdev, Link *link, sd_netlink_message_handler_t cb); |
5eef597e MP |
200 | |
201 | const char *netdev_kind_to_string(NetDevKind d) _const_; | |
202 | NetDevKind netdev_kind_from_string(const char *d) _pure_; | |
203 | ||
204 | 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); | |
205 | ||
206 | /* gperf */ | |
207 | const struct ConfigPerfItem* network_netdev_gperf_lookup(const char *key, unsigned length); | |
208 | ||
209 | /* Macros which append INTERFACE= to the message */ | |
210 | ||
e3bff60a MP |
211 | #define log_netdev_full(netdev, level, error, ...) \ |
212 | ({ \ | |
213 | NetDev *_n = (netdev); \ | |
214 | _n ? log_object_internal(level, error, __FILE__, __LINE__, __func__, "INTERFACE=", _n->ifname, ##__VA_ARGS__) : \ | |
215 | log_internal(level, error, __FILE__, __LINE__, __func__, ##__VA_ARGS__); \ | |
216 | }) | |
217 | ||
218 | #define log_netdev_debug(netdev, ...) log_netdev_full(netdev, LOG_DEBUG, 0, ##__VA_ARGS__) | |
219 | #define log_netdev_info(netdev, ...) log_netdev_full(netdev, LOG_INFO, 0, ##__VA_ARGS__) | |
220 | #define log_netdev_notice(netdev, ...) log_netdev_full(netdev, LOG_NOTICE, 0, ##__VA_ARGS__) | |
221 | #define log_netdev_warning(netdev, ...) log_netdev_full(netdev, LOG_WARNING, 0, ## __VA_ARGS__) | |
222 | #define log_netdev_error(netdev, ...) log_netdev_full(netdev, LOG_ERR, 0, ##__VA_ARGS__) | |
223 | ||
224 | #define log_netdev_debug_errno(netdev, error, ...) log_netdev_full(netdev, LOG_DEBUG, error, ##__VA_ARGS__) | |
225 | #define log_netdev_info_errno(netdev, error, ...) log_netdev_full(netdev, LOG_INFO, error, ##__VA_ARGS__) | |
226 | #define log_netdev_notice_errno(netdev, error, ...) log_netdev_full(netdev, LOG_NOTICE, error, ##__VA_ARGS__) | |
227 | #define log_netdev_warning_errno(netdev, error, ...) log_netdev_full(netdev, LOG_WARNING, error, ##__VA_ARGS__) | |
228 | #define log_netdev_error_errno(netdev, error, ...) log_netdev_full(netdev, LOG_ERR, error, ##__VA_ARGS__) | |
229 | ||
230 | #define LOG_NETDEV_MESSAGE(netdev, fmt, ...) "MESSAGE=%s: " fmt, (netdev)->ifname, ##__VA_ARGS__ | |
231 | #define LOG_NETDEV_INTERFACE(netdev) "INTERFACE=%s", (netdev)->ifname |