1 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
3 #ifndef foosdnetworkhfoo
4 #define foosdnetworkhfoo
7 This file is part of systemd.
9 Copyright 2011 Lennart Poettering
10 Copyright 2014 Tom Gundersen
12 systemd is free software; you can redistribute it and/or modify it
13 under the terms of the GNU Lesser General Public License as published by
14 the Free Software Foundation; either version 2.1 of the License, or
15 (at your option) any later version.
17 systemd is distributed in the hope that it will be useful, but
18 WITHOUT ANY WARRANTY; without even the implied warranty of
19 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
20 Lesser General Public License for more details.
22 You should have received a copy of the GNU Lesser General Public License
23 along with systemd; If not, see <http://www.gnu.org/licenses/>.
26 #include <sys/types.h>
29 #include "_sd-common.h"
34 * Instead of returning an empty string array or empty integer array, we
37 * Free the data the library returns with libc free(). String arrays
38 * are NULL terminated, and you need to free the array itself in
39 * addition to the strings contained.
41 * We return error codes as negative errno, kernel-style. On success, we
42 * return 0 or positive.
44 * These functions access data in /run. This is a virtual file system;
45 * therefore, accesses are relatively cheap.
47 * See sd-network(3) for more information.
50 _SD_BEGIN_DECLARATIONS;
52 /* Get overall operational state
53 * Possible states: down, up, dormant, carrier, degraded, routable
54 * Possible return codes:
55 * -ENODATA: networkd is not aware of any links
57 int sd_network_get_operational_state(char **state);
59 /* Get DNS entries for all links. These are string representations of
61 int sd_network_get_dns(char ***dns);
63 /* Get NTP entries for all links. These are domain names or string
64 * representations of IP addresses */
65 int sd_network_get_ntp(char ***ntp);
67 /* Get the search/routing domains for all links. */
68 int sd_network_get_domains(char ***domains);
70 /* Get setup state from ifindex.
72 * pending: udev is still processing the link, we don't yet know if we will manage it
73 * failed: networkd failed to manage the link
74 * configuring: in the process of retrieving configuration or configuring the link
75 * configured: link configured successfully
76 * unmanaged: networkd is not handling the link
77 * linger: the link is gone, but has not yet been dropped by networkd
78 * Possible return codes:
79 * -ENODATA: networkd is not aware of the link
81 int sd_network_link_get_setup_state(int ifindex, char **state);
83 /* Get operational state from ifindex.
85 * off: the device is powered down
86 * no-carrier: the device is powered up, but it does not yet have a carrier
87 * dormant: the device has a carrier, but is not yet ready for normal traffic
88 * carrier: the link has a carrier
89 * degraded: the link has carrier and addresses valid on the local link configured
90 * routable: the link has carrier and routable address configured
91 * Possible return codes:
92 * -ENODATA: networkd is not aware of the link
94 int sd_network_link_get_operational_state(int ifindex, char **state);
96 /* Get path to .network file applied to link */
97 int sd_network_link_get_network_file(int ifindex, char **filename);
99 /* Get DNS entries for a given link. These are string representations of
101 int sd_network_link_get_dns(int ifindex, char ***addr);
103 /* Get NTP entries for a given link. These are domain names or string
104 * representations of IP addresses */
105 int sd_network_link_get_ntp(int ifindex, char ***addr);
107 /* Indicates whether or not LLMNR should be enabled for the link
108 * Possible levels of support: yes, no, resolve
109 * Possible return codes:
110 * -ENODATA: networkd is not aware of the link
112 int sd_network_link_get_llmnr(int ifindex, char **llmnr);
114 int sd_network_link_get_lldp(int ifindex, char **lldp);
116 /* Get the DNS domain names for a given link. */
117 int sd_network_link_get_domains(int ifindex, char ***domains);
119 /* Get the CARRIERS to which current link is bound to. */
120 int sd_network_link_get_carrier_bound_to(int ifindex, char ***carriers);
122 /* Get the CARRIERS that are bound to current link. */
123 int sd_network_link_get_carrier_bound_by(int ifindex, char ***carriers);
125 /* Returns whether or not domains that don't match any link should be resolved
126 * on this link. 1 for yes, 0 for no and negative value for error */
127 int sd_network_link_get_wildcard_domain(int ifindex);
130 typedef struct sd_network_monitor sd_network_monitor;
132 /* Create a new monitor. Category must be NULL, "links" or "leases". */
133 int sd_network_monitor_new(sd_network_monitor **ret, const char *category);
135 /* Destroys the passed monitor. Returns NULL. */
136 sd_network_monitor* sd_network_monitor_unref(sd_network_monitor *m);
138 /* Flushes the monitor */
139 int sd_network_monitor_flush(sd_network_monitor *m);
141 /* Get FD from monitor */
142 int sd_network_monitor_get_fd(sd_network_monitor *m);
144 /* Get poll() mask to monitor */
145 int sd_network_monitor_get_events(sd_network_monitor *m);
147 /* Get timeout for poll(), as usec value relative to CLOCK_MONOTONIC's epoch */
148 int sd_network_monitor_get_timeout(sd_network_monitor *m, uint64_t *timeout_usec);
150 _SD_END_DECLARATIONS;