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53e1b683 | 1 | /* SPDX-License-Identifier: LGPL-2.1+ */ |
0ef6f454 LP |
2 | #pragma once |
3 | ||
3be1d7e0 TG |
4 | /*** |
5 | This file is part of systemd. | |
6 | ||
7 | Copyright 2013 Tom Gundersen <teg@jklm.no> | |
8 | ||
9 | systemd is free software; you can redistribute it and/or modify it | |
10 | under the terms of the GNU Lesser General Public License as published by | |
11 | the Free Software Foundation; either version 2.1 of the License, or | |
12 | (at your option) any later version. | |
13 | ||
14 | systemd is distributed in the hope that it will be useful, but | |
15 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
16 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
17 | Lesser General Public License for more details. | |
18 | ||
19 | You should have received a copy of the GNU Lesser General Public License | |
20 | along with systemd; If not, see <http://www.gnu.org/licenses/>. | |
21 | ***/ | |
22 | ||
634f0f98 | 23 | #include "sd-netlink.h" |
3be1d7e0 | 24 | |
634f0f98 ZJS |
25 | #include "list.h" |
26 | #include "time-util.h" | |
fc2f9534 | 27 | |
3be1d7e0 | 28 | typedef struct netdev_join_callback netdev_join_callback; |
634f0f98 | 29 | typedef struct Link Link; |
3be1d7e0 TG |
30 | |
31 | struct netdev_join_callback { | |
1c4baffc | 32 | sd_netlink_message_handler_t callback; |
3be1d7e0 TG |
33 | Link *link; |
34 | ||
35 | LIST_FIELDS(netdev_join_callback, callbacks); | |
36 | }; | |
37 | ||
38 | typedef enum NetDevKind { | |
39 | NETDEV_KIND_BRIDGE, | |
40 | NETDEV_KIND_BOND, | |
41 | NETDEV_KIND_VLAN, | |
42 | NETDEV_KIND_MACVLAN, | |
f33ff02b | 43 | NETDEV_KIND_MACVTAP, |
c4a5ddc9 | 44 | NETDEV_KIND_IPVLAN, |
3be1d7e0 TG |
45 | NETDEV_KIND_VXLAN, |
46 | NETDEV_KIND_IPIP, | |
47 | NETDEV_KIND_GRE, | |
1af2536a | 48 | NETDEV_KIND_GRETAP, |
b16492f8 SS |
49 | NETDEV_KIND_IP6GRE, |
50 | NETDEV_KIND_IP6GRETAP, | |
3be1d7e0 TG |
51 | NETDEV_KIND_SIT, |
52 | NETDEV_KIND_VETH, | |
53 | NETDEV_KIND_VTI, | |
9011ce77 | 54 | NETDEV_KIND_VTI6, |
855ee1a1 | 55 | NETDEV_KIND_IP6TNL, |
3be1d7e0 TG |
56 | NETDEV_KIND_DUMMY, |
57 | NETDEV_KIND_TUN, | |
58 | NETDEV_KIND_TAP, | |
20897a0d | 59 | NETDEV_KIND_VRF, |
92c918b0 | 60 | NETDEV_KIND_VCAN, |
6598e046 | 61 | NETDEV_KIND_GENEVE, |
3be1d7e0 TG |
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 | ||
634f0f98 ZJS |
83 | typedef struct Manager Manager; |
84 | typedef struct Condition Condition; | |
85 | ||
86 | typedef struct NetDev { | |
3be1d7e0 TG |
87 | Manager *manager; |
88 | ||
89 | int n_ref; | |
90 | ||
91 | char *filename; | |
92 | ||
93 | Condition *match_host; | |
94 | Condition *match_virt; | |
95 | Condition *match_kernel; | |
96 | Condition *match_arch; | |
97 | ||
aa9f1140 TG |
98 | NetDevState state; |
99 | NetDevKind kind; | |
3be1d7e0 TG |
100 | char *description; |
101 | char *ifname; | |
3be1d7e0 | 102 | struct ether_addr *mac; |
aa9f1140 | 103 | size_t mtu; |
3be1d7e0 | 104 | int ifindex; |
3be1d7e0 TG |
105 | |
106 | LIST_HEAD(netdev_join_callback, callbacks); | |
634f0f98 | 107 | } NetDev; |
3be1d7e0 | 108 | |
634f0f98 | 109 | typedef struct NetDevVTable { |
aa9f1140 TG |
110 | /* How much memory does an object of this unit type need */ |
111 | size_t object_size; | |
112 | ||
113 | /* Config file sections this netdev kind understands, separated | |
114 | * by NUL chars */ | |
115 | const char *sections; | |
3be1d7e0 | 116 | |
aa9f1140 TG |
117 | /* This should reset all type-specific variables. This should |
118 | * not allocate memory, and is called with zero-initialized | |
119 | * data. It should hence only initialize variables that need | |
120 | * to be set != 0. */ | |
121 | void (*init)(NetDev *n); | |
3be1d7e0 | 122 | |
aa9f1140 TG |
123 | /* This should free all kind-specific variables. It should be |
124 | * idempotent. */ | |
125 | void (*done)(NetDev *n); | |
126 | ||
127 | /* fill in message to create netdev */ | |
1c4baffc | 128 | int (*fill_message_create)(NetDev *netdev, Link *link, sd_netlink_message *message); |
aa9f1140 TG |
129 | |
130 | /* specifies if netdev is independent, or a master device or a stacked device */ | |
131 | NetDevCreateType create_type; | |
3be1d7e0 TG |
132 | |
133 | /* create netdev, if not done via rtnl */ | |
134 | int (*create)(NetDev *netdev); | |
135 | ||
540eb5f0 SS |
136 | /* perform additional configuration after netdev has been createad */ |
137 | int (*post_create)(NetDev *netdev, Link *link, sd_netlink_message *message); | |
138 | ||
3be1d7e0 TG |
139 | /* verify that compulsory configuration options were specified */ |
140 | int (*config_verify)(NetDev *netdev, const char *filename); | |
634f0f98 | 141 | } NetDevVTable; |
3be1d7e0 TG |
142 | |
143 | extern const NetDevVTable * const netdev_vtable[_NETDEV_KIND_MAX]; | |
144 | ||
145 | #define NETDEV_VTABLE(n) netdev_vtable[(n)->kind] | |
146 | ||
aa9f1140 | 147 | /* For casting a netdev into the various netdev kinds */ |
634f0f98 | 148 | #define DEFINE_NETDEV_CAST(UPPERCASE, MixedCase) \ |
aa9f1140 TG |
149 | static inline MixedCase* UPPERCASE(NetDev *n) { \ |
150 | if (_unlikely_(!n || n->kind != NETDEV_KIND_##UPPERCASE)) \ | |
151 | return NULL; \ | |
152 | \ | |
153 | return (MixedCase*) n; \ | |
154 | } | |
155 | ||
156 | /* For casting the various netdev kinds into a netdev */ | |
157 | #define NETDEV(n) (&(n)->meta) | |
158 | ||
3be1d7e0 TG |
159 | int netdev_load(Manager *manager); |
160 | void netdev_drop(NetDev *netdev); | |
161 | ||
162 | NetDev *netdev_unref(NetDev *netdev); | |
163 | NetDev *netdev_ref(NetDev *netdev); | |
164 | ||
165 | DEFINE_TRIVIAL_CLEANUP_FUNC(NetDev*, netdev_unref); | |
166 | #define _cleanup_netdev_unref_ _cleanup_(netdev_unrefp) | |
167 | ||
168 | int netdev_get(Manager *manager, const char *name, NetDev **ret); | |
1c4baffc TG |
169 | int netdev_set_ifindex(NetDev *netdev, sd_netlink_message *newlink); |
170 | int netdev_enslave(NetDev *netdev, Link *link, sd_netlink_message_handler_t callback); | |
3be1d7e0 | 171 | int netdev_get_mac(const char *ifname, struct ether_addr **ret); |
1c4baffc | 172 | int netdev_join(NetDev *netdev, Link *link, sd_netlink_message_handler_t cb); |
3be1d7e0 TG |
173 | |
174 | const char *netdev_kind_to_string(NetDevKind d) _const_; | |
175 | NetDevKind netdev_kind_from_string(const char *d) _pure_; | |
176 | ||
177 | 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); | |
178 | ||
179 | /* gperf */ | |
c9f7b4d3 | 180 | const struct ConfigPerfItem* network_netdev_gperf_lookup(const char *key, GPERF_LEN_TYPE length); |
3be1d7e0 TG |
181 | |
182 | /* Macros which append INTERFACE= to the message */ | |
183 | ||
f2341e0a LP |
184 | #define log_netdev_full(netdev, level, error, ...) \ |
185 | ({ \ | |
8dec4a9d | 186 | const NetDev *_n = (netdev); \ |
4b58153d | 187 | _n ? log_object_internal(level, error, __FILE__, __LINE__, __func__, "INTERFACE=", _n->ifname, NULL, NULL, ##__VA_ARGS__) : \ |
f2341e0a LP |
188 | log_internal(level, error, __FILE__, __LINE__, __func__, ##__VA_ARGS__); \ |
189 | }) | |
6a7a4e4d LP |
190 | |
191 | #define log_netdev_debug(netdev, ...) log_netdev_full(netdev, LOG_DEBUG, 0, ##__VA_ARGS__) | |
192 | #define log_netdev_info(netdev, ...) log_netdev_full(netdev, LOG_INFO, 0, ##__VA_ARGS__) | |
193 | #define log_netdev_notice(netdev, ...) log_netdev_full(netdev, LOG_NOTICE, 0, ##__VA_ARGS__) | |
194 | #define log_netdev_warning(netdev, ...) log_netdev_full(netdev, LOG_WARNING, 0, ## __VA_ARGS__) | |
195 | #define log_netdev_error(netdev, ...) log_netdev_full(netdev, LOG_ERR, 0, ##__VA_ARGS__) | |
196 | ||
197 | #define log_netdev_debug_errno(netdev, error, ...) log_netdev_full(netdev, LOG_DEBUG, error, ##__VA_ARGS__) | |
198 | #define log_netdev_info_errno(netdev, error, ...) log_netdev_full(netdev, LOG_INFO, error, ##__VA_ARGS__) | |
199 | #define log_netdev_notice_errno(netdev, error, ...) log_netdev_full(netdev, LOG_NOTICE, error, ##__VA_ARGS__) | |
200 | #define log_netdev_warning_errno(netdev, error, ...) log_netdev_full(netdev, LOG_WARNING, error, ##__VA_ARGS__) | |
201 | #define log_netdev_error_errno(netdev, error, ...) log_netdev_full(netdev, LOG_ERR, error, ##__VA_ARGS__) | |
98b32556 | 202 | |
f2341e0a LP |
203 | #define LOG_NETDEV_MESSAGE(netdev, fmt, ...) "MESSAGE=%s: " fmt, (netdev)->ifname, ##__VA_ARGS__ |
204 | #define LOG_NETDEV_INTERFACE(netdev) "INTERFACE=%s", (netdev)->ifname |