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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> | |
3be1d7e0 TG |
8 | ***/ |
9 | ||
634f0f98 | 10 | #include "sd-netlink.h" |
3be1d7e0 | 11 | |
634f0f98 ZJS |
12 | #include "list.h" |
13 | #include "time-util.h" | |
fc2f9534 | 14 | |
3be1d7e0 | 15 | typedef struct netdev_join_callback netdev_join_callback; |
634f0f98 | 16 | typedef struct Link Link; |
3be1d7e0 TG |
17 | |
18 | struct netdev_join_callback { | |
1c4baffc | 19 | sd_netlink_message_handler_t callback; |
3be1d7e0 TG |
20 | Link *link; |
21 | ||
22 | LIST_FIELDS(netdev_join_callback, callbacks); | |
23 | }; | |
24 | ||
25 | typedef enum NetDevKind { | |
26 | NETDEV_KIND_BRIDGE, | |
27 | NETDEV_KIND_BOND, | |
28 | NETDEV_KIND_VLAN, | |
29 | NETDEV_KIND_MACVLAN, | |
f33ff02b | 30 | NETDEV_KIND_MACVTAP, |
c4a5ddc9 | 31 | NETDEV_KIND_IPVLAN, |
3be1d7e0 TG |
32 | NETDEV_KIND_VXLAN, |
33 | NETDEV_KIND_IPIP, | |
34 | NETDEV_KIND_GRE, | |
1af2536a | 35 | NETDEV_KIND_GRETAP, |
b16492f8 SS |
36 | NETDEV_KIND_IP6GRE, |
37 | NETDEV_KIND_IP6GRETAP, | |
3be1d7e0 TG |
38 | NETDEV_KIND_SIT, |
39 | NETDEV_KIND_VETH, | |
40 | NETDEV_KIND_VTI, | |
9011ce77 | 41 | NETDEV_KIND_VTI6, |
855ee1a1 | 42 | NETDEV_KIND_IP6TNL, |
3be1d7e0 TG |
43 | NETDEV_KIND_DUMMY, |
44 | NETDEV_KIND_TUN, | |
45 | NETDEV_KIND_TAP, | |
20897a0d | 46 | NETDEV_KIND_VRF, |
92c918b0 | 47 | NETDEV_KIND_VCAN, |
6598e046 | 48 | NETDEV_KIND_GENEVE, |
d6df583c | 49 | NETDEV_KIND_VXCAN, |
e5719363 | 50 | NETDEV_KIND_WIREGUARD, |
3be1d7e0 TG |
51 | _NETDEV_KIND_MAX, |
52 | _NETDEV_KIND_INVALID = -1 | |
53 | } NetDevKind; | |
54 | ||
55 | typedef enum NetDevState { | |
f3c33b23 | 56 | NETDEV_STATE_LOADING, |
3be1d7e0 TG |
57 | NETDEV_STATE_FAILED, |
58 | NETDEV_STATE_CREATING, | |
59 | NETDEV_STATE_READY, | |
60 | NETDEV_STATE_LINGER, | |
61 | _NETDEV_STATE_MAX, | |
62 | _NETDEV_STATE_INVALID = -1, | |
63 | } NetDevState; | |
64 | ||
aa9f1140 TG |
65 | typedef enum NetDevCreateType { |
66 | NETDEV_CREATE_INDEPENDENT, | |
67 | NETDEV_CREATE_MASTER, | |
68 | NETDEV_CREATE_STACKED, | |
69 | _NETDEV_CREATE_MAX, | |
70 | _NETDEV_CREATE_INVALID = -1, | |
71 | } NetDevCreateType; | |
72 | ||
634f0f98 ZJS |
73 | typedef struct Manager Manager; |
74 | typedef struct Condition Condition; | |
75 | ||
76 | typedef struct NetDev { | |
3be1d7e0 TG |
77 | Manager *manager; |
78 | ||
79 | int n_ref; | |
80 | ||
81 | char *filename; | |
82 | ||
83 | Condition *match_host; | |
84 | Condition *match_virt; | |
5022f08a LP |
85 | Condition *match_kernel_cmdline; |
86 | Condition *match_kernel_version; | |
3be1d7e0 TG |
87 | Condition *match_arch; |
88 | ||
aa9f1140 TG |
89 | NetDevState state; |
90 | NetDevKind kind; | |
3be1d7e0 TG |
91 | char *description; |
92 | char *ifname; | |
3be1d7e0 | 93 | struct ether_addr *mac; |
aa9f1140 | 94 | size_t mtu; |
3be1d7e0 | 95 | int ifindex; |
3be1d7e0 TG |
96 | |
97 | LIST_HEAD(netdev_join_callback, callbacks); | |
634f0f98 | 98 | } NetDev; |
3be1d7e0 | 99 | |
634f0f98 | 100 | typedef struct NetDevVTable { |
aa9f1140 TG |
101 | /* How much memory does an object of this unit type need */ |
102 | size_t object_size; | |
103 | ||
104 | /* Config file sections this netdev kind understands, separated | |
105 | * by NUL chars */ | |
106 | const char *sections; | |
3be1d7e0 | 107 | |
aa9f1140 TG |
108 | /* This should reset all type-specific variables. This should |
109 | * not allocate memory, and is called with zero-initialized | |
110 | * data. It should hence only initialize variables that need | |
111 | * to be set != 0. */ | |
112 | void (*init)(NetDev *n); | |
3be1d7e0 | 113 | |
aa9f1140 TG |
114 | /* This should free all kind-specific variables. It should be |
115 | * idempotent. */ | |
116 | void (*done)(NetDev *n); | |
117 | ||
118 | /* fill in message to create netdev */ | |
1c4baffc | 119 | int (*fill_message_create)(NetDev *netdev, Link *link, sd_netlink_message *message); |
aa9f1140 TG |
120 | |
121 | /* specifies if netdev is independent, or a master device or a stacked device */ | |
122 | NetDevCreateType create_type; | |
3be1d7e0 TG |
123 | |
124 | /* create netdev, if not done via rtnl */ | |
125 | int (*create)(NetDev *netdev); | |
126 | ||
540eb5f0 SS |
127 | /* perform additional configuration after netdev has been createad */ |
128 | int (*post_create)(NetDev *netdev, Link *link, sd_netlink_message *message); | |
129 | ||
3be1d7e0 TG |
130 | /* verify that compulsory configuration options were specified */ |
131 | int (*config_verify)(NetDev *netdev, const char *filename); | |
634f0f98 | 132 | } NetDevVTable; |
3be1d7e0 TG |
133 | |
134 | extern const NetDevVTable * const netdev_vtable[_NETDEV_KIND_MAX]; | |
135 | ||
281bb5c1 | 136 | #define NETDEV_VTABLE(n) ((n)->kind != _NETDEV_KIND_INVALID ? netdev_vtable[(n)->kind] : NULL) |
3be1d7e0 | 137 | |
aa9f1140 | 138 | /* For casting a netdev into the various netdev kinds */ |
634f0f98 | 139 | #define DEFINE_NETDEV_CAST(UPPERCASE, MixedCase) \ |
aa9f1140 | 140 | static inline MixedCase* UPPERCASE(NetDev *n) { \ |
f3c33b23 LP |
141 | if (_unlikely_(!n || \ |
142 | n->kind != NETDEV_KIND_##UPPERCASE) || \ | |
143 | n->state == _NETDEV_STATE_INVALID) \ | |
aa9f1140 TG |
144 | return NULL; \ |
145 | \ | |
146 | return (MixedCase*) n; \ | |
147 | } | |
148 | ||
149 | /* For casting the various netdev kinds into a netdev */ | |
150 | #define NETDEV(n) (&(n)->meta) | |
151 | ||
3be1d7e0 TG |
152 | int netdev_load(Manager *manager); |
153 | void netdev_drop(NetDev *netdev); | |
154 | ||
155 | NetDev *netdev_unref(NetDev *netdev); | |
156 | NetDev *netdev_ref(NetDev *netdev); | |
157 | ||
158 | DEFINE_TRIVIAL_CLEANUP_FUNC(NetDev*, netdev_unref); | |
3be1d7e0 TG |
159 | |
160 | int netdev_get(Manager *manager, const char *name, NetDev **ret); | |
1c4baffc TG |
161 | int netdev_set_ifindex(NetDev *netdev, sd_netlink_message *newlink); |
162 | int netdev_enslave(NetDev *netdev, Link *link, sd_netlink_message_handler_t callback); | |
3be1d7e0 | 163 | int netdev_get_mac(const char *ifname, struct ether_addr **ret); |
1c4baffc | 164 | int netdev_join(NetDev *netdev, Link *link, sd_netlink_message_handler_t cb); |
3be1d7e0 TG |
165 | |
166 | const char *netdev_kind_to_string(NetDevKind d) _const_; | |
167 | NetDevKind netdev_kind_from_string(const char *d) _pure_; | |
168 | ||
169 | 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); | |
170 | ||
171 | /* gperf */ | |
c9f7b4d3 | 172 | const struct ConfigPerfItem* network_netdev_gperf_lookup(const char *key, GPERF_LEN_TYPE length); |
3be1d7e0 TG |
173 | |
174 | /* Macros which append INTERFACE= to the message */ | |
175 | ||
f2341e0a LP |
176 | #define log_netdev_full(netdev, level, error, ...) \ |
177 | ({ \ | |
8dec4a9d | 178 | const NetDev *_n = (netdev); \ |
4b58153d | 179 | _n ? log_object_internal(level, error, __FILE__, __LINE__, __func__, "INTERFACE=", _n->ifname, NULL, NULL, ##__VA_ARGS__) : \ |
f2341e0a LP |
180 | log_internal(level, error, __FILE__, __LINE__, __func__, ##__VA_ARGS__); \ |
181 | }) | |
6a7a4e4d LP |
182 | |
183 | #define log_netdev_debug(netdev, ...) log_netdev_full(netdev, LOG_DEBUG, 0, ##__VA_ARGS__) | |
184 | #define log_netdev_info(netdev, ...) log_netdev_full(netdev, LOG_INFO, 0, ##__VA_ARGS__) | |
185 | #define log_netdev_notice(netdev, ...) log_netdev_full(netdev, LOG_NOTICE, 0, ##__VA_ARGS__) | |
186 | #define log_netdev_warning(netdev, ...) log_netdev_full(netdev, LOG_WARNING, 0, ## __VA_ARGS__) | |
187 | #define log_netdev_error(netdev, ...) log_netdev_full(netdev, LOG_ERR, 0, ##__VA_ARGS__) | |
188 | ||
189 | #define log_netdev_debug_errno(netdev, error, ...) log_netdev_full(netdev, LOG_DEBUG, error, ##__VA_ARGS__) | |
190 | #define log_netdev_info_errno(netdev, error, ...) log_netdev_full(netdev, LOG_INFO, error, ##__VA_ARGS__) | |
191 | #define log_netdev_notice_errno(netdev, error, ...) log_netdev_full(netdev, LOG_NOTICE, error, ##__VA_ARGS__) | |
192 | #define log_netdev_warning_errno(netdev, error, ...) log_netdev_full(netdev, LOG_WARNING, error, ##__VA_ARGS__) | |
193 | #define log_netdev_error_errno(netdev, error, ...) log_netdev_full(netdev, LOG_ERR, error, ##__VA_ARGS__) | |
98b32556 | 194 | |
f2341e0a LP |
195 | #define LOG_NETDEV_MESSAGE(netdev, fmt, ...) "MESSAGE=%s: " fmt, (netdev)->ifname, ##__VA_ARGS__ |
196 | #define LOG_NETDEV_INTERFACE(netdev) "INTERFACE=%s", (netdev)->ifname |