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0b1831c2 TG |
1 | /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ |
2 | ||
fc2f9534 LP |
3 | #pragma once |
4 | ||
0b1831c2 TG |
5 | /*** |
6 | This file is part of systemd. | |
7 | ||
8 | Copyright 2013 Tom Gundersen <teg@jklm.no> | |
9 | ||
10 | systemd is free software; you can redistribute it and/or modify it | |
11 | under the terms of the GNU Lesser General Public License as published by | |
12 | the Free Software Foundation; either version 2.1 of the License, or | |
13 | (at your option) any later version. | |
14 | ||
15 | systemd is distributed in the hope that it will be useful, but | |
16 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
18 | Lesser General Public License for more details. | |
19 | ||
20 | You should have received a copy of the GNU Lesser General Public License | |
21 | along with systemd; If not, see <http://www.gnu.org/licenses/>. | |
22 | ***/ | |
23 | ||
80431934 PM |
24 | #include <endian.h> |
25 | ||
fc2f9534 LP |
26 | #include "sd-dhcp-client.h" |
27 | #include "sd-dhcp-server.h" | |
fc2f9534 | 28 | #include "sd-dhcp6-client.h" |
07630cea | 29 | #include "sd-ipv4ll.h" |
fc2f9534 | 30 | #include "sd-lldp.h" |
07630cea | 31 | #include "sd-ndisc.h" |
fc2f9534 LP |
32 | |
33 | typedef struct Link Link; | |
0b1831c2 TG |
34 | |
35 | typedef enum LinkState { | |
8434fd5c | 36 | LINK_STATE_PENDING, |
0b1831c2 TG |
37 | LINK_STATE_ENSLAVING, |
38 | LINK_STATE_SETTING_ADDRESSES, | |
39 | LINK_STATE_SETTING_ROUTES, | |
40 | LINK_STATE_CONFIGURED, | |
41 | LINK_STATE_UNMANAGED, | |
42 | LINK_STATE_FAILED, | |
43 | LINK_STATE_LINGER, | |
44 | _LINK_STATE_MAX, | |
45 | _LINK_STATE_INVALID = -1 | |
46 | } LinkState; | |
47 | ||
fc2f9534 LP |
48 | typedef enum LinkOperationalState { |
49 | LINK_OPERSTATE_OFF, | |
50 | LINK_OPERSTATE_NO_CARRIER, | |
51 | LINK_OPERSTATE_DORMANT, | |
52 | LINK_OPERSTATE_CARRIER, | |
53 | LINK_OPERSTATE_DEGRADED, | |
54 | LINK_OPERSTATE_ROUTABLE, | |
55 | _LINK_OPERSTATE_MAX, | |
56 | _LINK_OPERSTATE_INVALID = -1 | |
57 | } LinkOperationalState; | |
58 | ||
59 | #include "networkd.h" | |
60 | #include "networkd-network.h" | |
61 | #include "networkd-address.h" | |
62 | ||
0b1831c2 TG |
63 | struct Link { |
64 | Manager *manager; | |
65 | ||
66 | int n_ref; | |
67 | ||
68 | int ifindex; | |
69 | char *ifname; | |
70 | char *state_file; | |
71 | struct ether_addr mac; | |
72 | uint32_t mtu; | |
73 | struct udev_device *udev_device; | |
74 | ||
75 | unsigned flags; | |
76 | uint8_t kernel_operstate; | |
77 | ||
78 | Network *network; | |
79 | ||
80 | LinkState state; | |
81 | LinkOperationalState operstate; | |
82 | ||
3c9b8860 | 83 | unsigned link_messages; |
0b1831c2 TG |
84 | unsigned enslaving; |
85 | ||
cf1d700d | 86 | Set *addresses; |
adda1ed9 | 87 | Set *addresses_foreign; |
0b1831c2 TG |
88 | |
89 | sd_dhcp_client *dhcp_client; | |
90 | sd_dhcp_lease *dhcp_lease; | |
91 | char *lease_file; | |
92 | uint16_t original_mtu; | |
3c9b8860 TG |
93 | unsigned dhcp4_messages; |
94 | bool dhcp4_configured; | |
18d29550 | 95 | bool dhcp6_configured; |
b22d8a00 | 96 | |
0b1831c2 | 97 | sd_ipv4ll *ipv4ll; |
b22d8a00 TG |
98 | bool ipv4ll_address; |
99 | bool ipv4ll_route; | |
0b1831c2 | 100 | |
3c9b8860 TG |
101 | bool static_configured; |
102 | ||
0b1831c2 TG |
103 | LIST_HEAD(Address, pool_addresses); |
104 | ||
105 | sd_dhcp_server *dhcp_server; | |
106 | ||
de1e9928 | 107 | sd_ndisc *ndisc_router_discovery; |
0b1831c2 | 108 | sd_dhcp6_client *dhcp6_client; |
be3a09b7 | 109 | bool rtnl_extended_attrs; |
ce43e484 SS |
110 | |
111 | sd_lldp *lldp; | |
49699bac | 112 | char *lldp_file; |
0d4ad91d AR |
113 | |
114 | Hashmap *bound_by_links; | |
115 | Hashmap *bound_to_links; | |
0b1831c2 TG |
116 | }; |
117 | ||
118 | Link *link_unref(Link *link); | |
119 | Link *link_ref(Link *link); | |
120 | int link_get(Manager *m, int ifindex, Link **ret); | |
1c4baffc | 121 | int link_add(Manager *manager, sd_netlink_message *message, Link **ret); |
0b1831c2 TG |
122 | void link_drop(Link *link); |
123 | ||
91b5f997 TG |
124 | int link_address_remove_handler(sd_netlink *rtnl, sd_netlink_message *m, void *userdata); |
125 | int link_route_remove_handler(sd_netlink *rtnl, sd_netlink_message *m, void *userdata); | |
0b1831c2 | 126 | |
b22d8a00 | 127 | void link_enter_failed(Link *link); |
0b1831c2 TG |
128 | int link_initialized(Link *link, struct udev_device *device); |
129 | ||
8012cd39 | 130 | void link_check_ready(Link *link); |
b22d8a00 | 131 | |
84de38c5 | 132 | void link_update_operstate(Link *link); |
1c4baffc | 133 | int link_update(Link *link, sd_netlink_message *message); |
b22d8a00 | 134 | |
84de38c5 TG |
135 | void link_dirty(Link *link); |
136 | void link_clean(Link *link); | |
0b1831c2 TG |
137 | int link_save(Link *link); |
138 | ||
9c0a72f9 | 139 | int link_carrier_reset(Link *link); |
a61bb41c | 140 | bool link_has_carrier(Link *link); |
0b1831c2 | 141 | |
3c9b8860 TG |
142 | int link_set_mtu(Link *link, uint32_t mtu); |
143 | int link_set_hostname(Link *link, const char *hostname); | |
21b80ad1 | 144 | int link_set_timezone(Link *link, const char *timezone); |
3c9b8860 | 145 | |
b22d8a00 | 146 | int ipv4ll_configure(Link *link); |
3c9b8860 | 147 | int dhcp4_configure(Link *link); |
a13c50e7 | 148 | int dhcp6_configure(Link *link, bool information_request); |
de1e9928 | 149 | int ndisc_configure(Link *link); |
b22d8a00 | 150 | |
a97dcc12 TG |
151 | bool link_lldp_enabled(Link *link); |
152 | bool link_ipv4ll_enabled(Link *link); | |
d0d6a4cd | 153 | bool link_ipv6ll_enabled(Link *link); |
a97dcc12 TG |
154 | bool link_dhcp4_server_enabled(Link *link); |
155 | bool link_dhcp4_enabled(Link *link); | |
156 | bool link_dhcp6_enabled(Link *link); | |
157 | ||
0b1831c2 TG |
158 | const char* link_state_to_string(LinkState s) _const_; |
159 | LinkState link_state_from_string(const char *s) _pure_; | |
160 | ||
fc2f9534 LP |
161 | const char* link_operstate_to_string(LinkOperationalState s) _const_; |
162 | LinkOperationalState link_operstate_from_string(const char *s) _pure_; | |
163 | ||
e331e246 TG |
164 | extern const sd_bus_vtable link_vtable[]; |
165 | ||
166 | int link_node_enumerator(sd_bus *bus, const char *path, void *userdata, char ***nodes, sd_bus_error *error); | |
167 | int link_object_find(sd_bus *bus, const char *path, const char *interface, void *userdata, void **found, sd_bus_error *error); | |
168 | int link_send_changed(Link *link, const char *property, ...) _sentinel_; | |
0b1831c2 TG |
169 | |
170 | DEFINE_TRIVIAL_CLEANUP_FUNC(Link*, link_unref); | |
171 | #define _cleanup_link_unref_ _cleanup_(link_unrefp) | |
172 | ||
173 | /* Macros which append INTERFACE= to the message */ | |
174 | ||
f2341e0a LP |
175 | #define log_link_full(link, level, error, ...) \ |
176 | ({ \ | |
177 | Link *_l = (link); \ | |
178 | _l ? log_object_internal(level, error, __FILE__, __LINE__, __func__, "INTERFACE=", _l->ifname, ##__VA_ARGS__) : \ | |
179 | log_internal(level, error, __FILE__, __LINE__, __func__, ##__VA_ARGS__); \ | |
180 | }) \ | |
181 | ||
182 | #define log_link_debug(link, ...) log_link_full(link, LOG_DEBUG, 0, ##__VA_ARGS__) | |
183 | #define log_link_info(link, ...) log_link_full(link, LOG_INFO, 0, ##__VA_ARGS__) | |
184 | #define log_link_notice(link, ...) log_link_full(link, LOG_NOTICE, 0, ##__VA_ARGS__) | |
185 | #define log_link_warning(link, ...) log_link_full(link, LOG_WARNING, 0, ##__VA_ARGS__) | |
186 | #define log_link_error(link, ...) log_link_full(link, LOG_ERR, 0, ##__VA_ARGS__) | |
6c861f0a LP |
187 | |
188 | #define log_link_debug_errno(link, error, ...) log_link_full(link, LOG_DEBUG, error, ##__VA_ARGS__) | |
189 | #define log_link_info_errno(link, error, ...) log_link_full(link, LOG_INFO, error, ##__VA_ARGS__) | |
190 | #define log_link_notice_errno(link, error, ...) log_link_full(link, LOG_NOTICE, error, ##__VA_ARGS__) | |
191 | #define log_link_warning_errno(link, error, ...) log_link_full(link, LOG_WARNING, error, ##__VA_ARGS__) | |
192 | #define log_link_error_errno(link, error, ...) log_link_full(link, LOG_ERR, error, ##__VA_ARGS__) | |
193 | ||
f2341e0a LP |
194 | #define LOG_LINK_MESSAGE(link, fmt, ...) "MESSAGE=%s: " fmt, (link)->ifname, ##__VA_ARGS__ |
195 | #define LOG_LINK_INTERFACE(link) "INTERFACE=%s", (link)->ifname | |
0b1831c2 | 196 | |
80431934 PM |
197 | #define ADDRESS_FMT_VAL(address) \ |
198 | be32toh((address).s_addr) >> 24, \ | |
199 | (be32toh((address).s_addr) >> 16) & 0xFFu, \ | |
200 | (be32toh((address).s_addr) >> 8) & 0xFFu, \ | |
201 | be32toh((address).s_addr) & 0xFFu |