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53e1b683 | 1 | /* SPDX-License-Identifier: LGPL-2.1+ */ |
82bdf8ce TG |
2 | #ifndef foosdnetworkhfoo |
3 | #define foosdnetworkhfoo | |
fe8db0c5 TG |
4 | |
5 | /*** | |
6 | This file is part of systemd. | |
7 | ||
8 | Copyright 2011 Lennart Poettering | |
9 | Copyright 2014 Tom Gundersen | |
10 | ||
11 | systemd is free software; you can redistribute it and/or modify it | |
12 | under the terms of the GNU Lesser General Public License as published by | |
13 | the Free Software Foundation; either version 2.1 of the License, or | |
14 | (at your option) any later version. | |
15 | ||
16 | systemd is distributed in the hope that it will be useful, but | |
17 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
18 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
19 | Lesser General Public License for more details. | |
20 | ||
21 | You should have received a copy of the GNU Lesser General Public License | |
22 | along with systemd; If not, see <http://www.gnu.org/licenses/>. | |
23 | ***/ | |
24 | ||
fe8db0c5 | 25 | #include <inttypes.h> |
71d35b6b | 26 | #include <sys/types.h> |
fe8db0c5 | 27 | |
fe8db0c5 TG |
28 | #include "_sd-common.h" |
29 | ||
30 | /* | |
31 | * A few points: | |
32 | * | |
33 | * Instead of returning an empty string array or empty integer array, we | |
34 | * may return NULL. | |
35 | * | |
36 | * Free the data the library returns with libc free(). String arrays | |
10b17992 | 37 | * are NULL terminated, and you need to free the array itself in |
fe8db0c5 TG |
38 | * addition to the strings contained. |
39 | * | |
10b17992 JSJ |
40 | * We return error codes as negative errno, kernel-style. On success, we |
41 | * return 0 or positive. | |
fe8db0c5 | 42 | * |
10b17992 JSJ |
43 | * These functions access data in /run. This is a virtual file system; |
44 | * therefore, accesses are relatively cheap. | |
fe8db0c5 TG |
45 | * |
46 | * See sd-network(3) for more information. | |
47 | */ | |
48 | ||
49 | _SD_BEGIN_DECLARATIONS; | |
50 | ||
6436165d | 51 | /* Get overall operational state |
54cba0b1 | 52 | * Possible states: down, up, dormant, carrier, degraded, routable |
6436165d LP |
53 | * Possible return codes: |
54 | * -ENODATA: networkd is not aware of any links | |
55 | */ | |
56 | int sd_network_get_operational_state(char **state); | |
57 | ||
03cc0fd1 LP |
58 | /* Get DNS entries for all links. These are string representations of |
59 | * IP addresses */ | |
8612e936 | 60 | int sd_network_get_dns(char ***dns); |
03cc0fd1 LP |
61 | |
62 | /* Get NTP entries for all links. These are domain names or string | |
91c40d86 | 63 | * representations of IP addresses */ |
8612e936 LP |
64 | int sd_network_get_ntp(char ***ntp); |
65 | ||
3df9bec5 LP |
66 | /* Get the search domains for all links. */ |
67 | int sd_network_get_search_domains(char ***domains); | |
68 | ||
69 | /* Get the search domains for all links. */ | |
70 | int sd_network_get_route_domains(char ***domains); | |
03cc0fd1 | 71 | |
438ca2bb | 72 | /* Get setup state from ifindex. |
8434fd5c TG |
73 | * Possible states: |
74 | * pending: udev is still processing the link, we don't yet know if we will manage it | |
75 | * failed: networkd failed to manage the link | |
76 | * configuring: in the process of retrieving configuration or configuring the link | |
77 | * configured: link configured successfully | |
78 | * unmanaged: networkd is not handling the link | |
79 | * linger: the link is gone, but has not yet been dropped by networkd | |
deb2e523 TG |
80 | * Possible return codes: |
81 | * -ENODATA: networkd is not aware of the link | |
deb2e523 | 82 | */ |
438ca2bb | 83 | int sd_network_link_get_setup_state(int ifindex, char **state); |
deb2e523 | 84 | |
91c40d86 | 85 | /* Get operational state from ifindex. |
d3df0e39 TG |
86 | * Possible states: |
87 | * off: the device is powered down | |
88 | * no-carrier: the device is powered up, but it does not yet have a carrier | |
89 | * dormant: the device has a carrier, but is not yet ready for normal traffic | |
90 | * carrier: the link has a carrier | |
91 | * degraded: the link has carrier and addresses valid on the local link configured | |
92 | * routable: the link has carrier and routable address configured | |
deb2e523 TG |
93 | * Possible return codes: |
94 | * -ENODATA: networkd is not aware of the link | |
95 | */ | |
d6731e4c | 96 | int sd_network_link_get_operational_state(int ifindex, char **state); |
deb2e523 | 97 | |
c1a38904 MTL |
98 | /* Indicates whether the network is relevant to being online. |
99 | * Possible return codes: | |
100 | * 0: the connection is not required | |
101 | * 1: the connection is required to consider the system online | |
102 | * <0: networkd is not aware of the link | |
103 | */ | |
104 | int sd_network_link_get_required_for_online(int ifindex); | |
105 | ||
adc5b2e2 TG |
106 | /* Get path to .network file applied to link */ |
107 | int sd_network_link_get_network_file(int ifindex, char **filename); | |
108 | ||
6f4dedb2 TG |
109 | /* Get DNS entries for a given link. These are string representations of |
110 | * IP addresses */ | |
b295beea | 111 | int sd_network_link_get_dns(int ifindex, char ***ret); |
7dbf94a9 | 112 | |
6f4dedb2 | 113 | /* Get NTP entries for a given link. These are domain names or string |
91c40d86 | 114 | * representations of IP addresses */ |
b295beea | 115 | int sd_network_link_get_ntp(int ifindex, char ***ret); |
7dbf94a9 | 116 | |
03cc0fd1 LP |
117 | /* Indicates whether or not LLMNR should be enabled for the link |
118 | * Possible levels of support: yes, no, resolve | |
119 | * Possible return codes: | |
91c40d86 TH |
120 | * -ENODATA: networkd is not aware of the link |
121 | */ | |
d6731e4c | 122 | int sd_network_link_get_llmnr(int ifindex, char **llmnr); |
03cc0fd1 | 123 | |
ad6c0475 LP |
124 | /* Indicates whether or not MulticastDNS should be enabled for the |
125 | * link. | |
aaa297d4 LP |
126 | * Possible levels of support: yes, no, resolve |
127 | * Possible return codes: | |
128 | * -ENODATA: networkd is not aware of the link | |
129 | */ | |
130 | int sd_network_link_get_mdns(int ifindex, char **mdns); | |
131 | ||
c9299be2 | 132 | /* Indicates whether or not DNS-over-TLS should be enabled for the |
d050561a IT |
133 | * link. |
134 | * Possible levels of support: strict, no, opportunistic | |
135 | * Possible return codes: | |
136 | * -ENODATA: networkd is not aware of the link | |
137 | */ | |
c9299be2 | 138 | int sd_network_link_get_dns_over_tls(int ifindex, char **dns_over_tls); |
d050561a | 139 | |
ad6c0475 LP |
140 | /* Indicates whether or not DNSSEC should be enabled for the link |
141 | * Possible levels of support: yes, no, allow-downgrade | |
142 | * Possible return codes: | |
143 | * -ENODATA: networkd is not aware of the link | |
144 | */ | |
145 | int sd_network_link_get_dnssec(int ifindex, char **dnssec); | |
146 | ||
8a516214 LP |
147 | /* Returns the list of per-interface DNSSEC negative trust anchors |
148 | * Possible return codes: | |
149 | * -ENODATA: networkd is not aware of the link, or has no such data | |
150 | */ | |
151 | int sd_network_link_get_dnssec_negative_trust_anchors(int ifindex, char ***nta); | |
152 | ||
3df9bec5 LP |
153 | /* Get the search DNS domain names for a given link. */ |
154 | int sd_network_link_get_search_domains(int ifindex, char ***domains); | |
155 | ||
156 | /* Get the route DNS domain names for a given link. */ | |
157 | int sd_network_link_get_route_domains(int ifindex, char ***domains); | |
9b4d1882 | 158 | |
b295beea LP |
159 | /* Get the carrier interface indexes to which current link is bound to. */ |
160 | int sd_network_link_get_carrier_bound_to(int ifindex, int **ifindexes); | |
0d4ad91d AR |
161 | |
162 | /* Get the CARRIERS that are bound to current link. */ | |
b295beea | 163 | int sd_network_link_get_carrier_bound_by(int ifindex, int **ifindexes); |
0d4ad91d | 164 | |
8eb9058d LP |
165 | /* Get the timezone that was learnt on a specific link. */ |
166 | int sd_network_link_get_timezone(int ifindex, char **timezone); | |
167 | ||
fe8db0c5 TG |
168 | /* Monitor object */ |
169 | typedef struct sd_network_monitor sd_network_monitor; | |
170 | ||
7e141e49 | 171 | /* Create a new monitor. Category must be NULL, "links" or "leases". */ |
0014a4ad | 172 | int sd_network_monitor_new(sd_network_monitor **ret, const char *category); |
fe8db0c5 TG |
173 | |
174 | /* Destroys the passed monitor. Returns NULL. */ | |
175 | sd_network_monitor* sd_network_monitor_unref(sd_network_monitor *m); | |
176 | ||
177 | /* Flushes the monitor */ | |
178 | int sd_network_monitor_flush(sd_network_monitor *m); | |
179 | ||
180 | /* Get FD from monitor */ | |
181 | int sd_network_monitor_get_fd(sd_network_monitor *m); | |
182 | ||
183 | /* Get poll() mask to monitor */ | |
184 | int sd_network_monitor_get_events(sd_network_monitor *m); | |
185 | ||
186 | /* Get timeout for poll(), as usec value relative to CLOCK_MONOTONIC's epoch */ | |
187 | int sd_network_monitor_get_timeout(sd_network_monitor *m, uint64_t *timeout_usec); | |
188 | ||
4afd3348 LP |
189 | _SD_DEFINE_POINTER_CLEANUP_FUNC(sd_network_monitor, sd_network_monitor_unref); |
190 | ||
fe8db0c5 TG |
191 | _SD_END_DECLARATIONS; |
192 | ||
193 | #endif |