1 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
4 This file is part of systemd.
6 Copyright 2013 Tom Gundersen <teg@jklm.no>
8 systemd is free software; you can redistribute it and/or modify it
9 under the terms of the GNU Lesser General Public License as published by
10 the Free Software Foundation; either version 2.1 of the License, or
11 (at your option) any later version.
13 systemd is distributed in the hope that it will be useful, but
14 WITHOUT ANY WARRANTY; without even the implied warranty of
15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
16 Lesser General Public License for more details.
18 You should have received a copy of the GNU Lesser General Public License
19 along with systemd; If not, see <http://www.gnu.org/licenses/>.
28 typedef enum LinkState {
31 LINK_STATE_SETTING_ADDRESSES,
32 LINK_STATE_SETTING_ROUTES,
33 LINK_STATE_CONFIGURED,
38 _LINK_STATE_INVALID = -1
49 struct ether_addr mac;
51 struct udev_device *udev_device;
54 uint8_t kernel_operstate;
59 LinkOperationalState operstate;
61 unsigned link_messages;
64 LIST_HEAD(Address, addresses);
66 sd_dhcp_client *dhcp_client;
67 sd_dhcp_lease *dhcp_lease;
69 uint16_t original_mtu;
70 unsigned dhcp4_messages;
71 bool dhcp4_configured;
77 bool static_configured;
79 LIST_HEAD(Address, pool_addresses);
81 sd_dhcp_server *dhcp_server;
83 sd_icmp6_nd *icmp6_router_discovery;
84 sd_dhcp6_client *dhcp6_client;
90 Link *link_unref(Link *link);
91 Link *link_ref(Link *link);
92 int link_get(Manager *m, int ifindex, Link **ret);
93 int link_add(Manager *manager, sd_rtnl_message *message, Link **ret);
94 void link_drop(Link *link);
96 int link_address_drop_handler(sd_rtnl *rtnl, sd_rtnl_message *m, void *userdata);
97 int link_route_drop_handler(sd_rtnl *rtnl, sd_rtnl_message *m, void *userdata);
99 void link_enter_failed(Link *link);
100 int link_initialized(Link *link, struct udev_device *device);
102 void link_client_handler(Link *link);
104 int link_update(Link *link, sd_rtnl_message *message);
105 int link_rtnl_process_address(sd_rtnl *rtnl, sd_rtnl_message *message, void *userdata);
107 int link_save(Link *link);
109 int link_carrier_reset(Link *link);
110 bool link_has_carrier(Link *link);
112 int link_set_mtu(Link *link, uint32_t mtu);
113 int link_set_hostname(Link *link, const char *hostname);
115 int ipv4ll_configure(Link *link);
116 int dhcp4_configure(Link *link);
117 int icmp6_configure(Link *link);
119 bool link_lldp_enabled(Link *link);
120 bool link_ipv4ll_enabled(Link *link);
121 bool link_ipv6ll_enabled(Link *link);
122 bool link_dhcp4_server_enabled(Link *link);
123 bool link_dhcp4_enabled(Link *link);
124 bool link_dhcp6_enabled(Link *link);
126 const char* link_state_to_string(LinkState s) _const_;
127 LinkState link_state_from_string(const char *s) _pure_;
129 extern const sd_bus_vtable link_vtable[];
131 int link_node_enumerator(sd_bus *bus, const char *path, void *userdata, char ***nodes, sd_bus_error *error);
132 int link_object_find(sd_bus *bus, const char *path, const char *interface, void *userdata, void **found, sd_bus_error *error);
133 int link_send_changed(Link *link, const char *property, ...) _sentinel_;
135 DEFINE_TRIVIAL_CLEANUP_FUNC(Link*, link_unref);
136 #define _cleanup_link_unref_ _cleanup_(link_unrefp)
138 /* Macros which append INTERFACE= to the message */
140 #define log_link_full(link, level, error, fmt, ...) \
141 log_object_internal(level, error, __FILE__, __LINE__, __func__, "INTERFACE=", link->ifname, "%-*s: " fmt, IFNAMSIZ, link->ifname, ##__VA_ARGS__)
143 #define log_link_debug(link, ...) log_link_full(link, LOG_DEBUG, 0, ##__VA_ARGS__)
144 #define log_link_info(link, ...) log_link_full(link, LOG_INFO, 0, ##__VA_ARGS__)
145 #define log_link_notice(link, ...) log_link_full(link, LOG_NOTICE, 0, ##__VA_ARGS__)
146 #define log_link_warning(link, ...) log_link_full(link, LOG_WARNING, 0, ##__VA_ARGS__)
147 #define log_link_error(link, ...) log_link_full(link, LOG_ERR, 0, ##__VA_ARGS__)
149 #define log_link_debug_errno(link, error, ...) log_link_full(link, LOG_DEBUG, error, ##__VA_ARGS__)
150 #define log_link_info_errno(link, error, ...) log_link_full(link, LOG_INFO, error, ##__VA_ARGS__)
151 #define log_link_notice_errno(link, error, ...) log_link_full(link, LOG_NOTICE, error, ##__VA_ARGS__)
152 #define log_link_warning_errno(link, error, ...) log_link_full(link, LOG_WARNING, error, ##__VA_ARGS__)
153 #define log_link_error_errno(link, error, ...) log_link_full(link, LOG_ERR, error, ##__VA_ARGS__)
155 #define log_link_struct(link, level, ...) log_struct(level, "INTERFACE=%s", link->ifname, __VA_ARGS__)
157 #define ADDRESS_FMT_VAL(address) \
158 be32toh((address).s_addr) >> 24, \
159 (be32toh((address).s_addr) >> 16) & 0xFFu, \
160 (be32toh((address).s_addr) >> 8) & 0xFFu, \
161 be32toh((address).s_addr) & 0xFFu