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;
89 Hashmap *bound_by_links;
90 Hashmap *bound_to_links;
93 Link *link_unref(Link *link);
94 Link *link_ref(Link *link);
95 int link_get(Manager *m, int ifindex, Link **ret);
96 int link_add(Manager *manager, sd_rtnl_message *message, Link **ret);
97 void link_drop(Link *link);
99 int link_address_drop_handler(sd_rtnl *rtnl, sd_rtnl_message *m, void *userdata);
100 int link_route_drop_handler(sd_rtnl *rtnl, sd_rtnl_message *m, void *userdata);
102 void link_enter_failed(Link *link);
103 int link_initialized(Link *link, struct udev_device *device);
105 void link_client_handler(Link *link);
107 int link_update(Link *link, sd_rtnl_message *message);
108 int link_rtnl_process_address(sd_rtnl *rtnl, sd_rtnl_message *message, void *userdata);
110 int link_save(Link *link);
112 int link_carrier_reset(Link *link);
113 bool link_has_carrier(Link *link);
115 int link_set_mtu(Link *link, uint32_t mtu);
116 int link_set_hostname(Link *link, const char *hostname);
118 int ipv4ll_configure(Link *link);
119 int dhcp4_configure(Link *link);
120 int icmp6_configure(Link *link);
122 bool link_lldp_enabled(Link *link);
123 bool link_ipv4ll_enabled(Link *link);
124 bool link_ipv6ll_enabled(Link *link);
125 bool link_dhcp4_server_enabled(Link *link);
126 bool link_dhcp4_enabled(Link *link);
127 bool link_dhcp6_enabled(Link *link);
129 const char* link_state_to_string(LinkState s) _const_;
130 LinkState link_state_from_string(const char *s) _pure_;
132 extern const sd_bus_vtable link_vtable[];
134 int link_node_enumerator(sd_bus *bus, const char *path, void *userdata, char ***nodes, sd_bus_error *error);
135 int link_object_find(sd_bus *bus, const char *path, const char *interface, void *userdata, void **found, sd_bus_error *error);
136 int link_send_changed(Link *link, const char *property, ...) _sentinel_;
138 DEFINE_TRIVIAL_CLEANUP_FUNC(Link*, link_unref);
139 #define _cleanup_link_unref_ _cleanup_(link_unrefp)
141 /* Macros which append INTERFACE= to the message */
143 #define log_link_full(link, level, error, fmt, ...) \
144 log_object_internal(level, error, __FILE__, __LINE__, __func__, "INTERFACE=", link->ifname, "%-*s: " fmt, IFNAMSIZ, link->ifname, ##__VA_ARGS__)
146 #define log_link_debug(link, ...) log_link_full(link, LOG_DEBUG, 0, ##__VA_ARGS__)
147 #define log_link_info(link, ...) log_link_full(link, LOG_INFO, 0, ##__VA_ARGS__)
148 #define log_link_notice(link, ...) log_link_full(link, LOG_NOTICE, 0, ##__VA_ARGS__)
149 #define log_link_warning(link, ...) log_link_full(link, LOG_WARNING, 0, ##__VA_ARGS__)
150 #define log_link_error(link, ...) log_link_full(link, LOG_ERR, 0, ##__VA_ARGS__)
152 #define log_link_debug_errno(link, error, ...) log_link_full(link, LOG_DEBUG, error, ##__VA_ARGS__)
153 #define log_link_info_errno(link, error, ...) log_link_full(link, LOG_INFO, error, ##__VA_ARGS__)
154 #define log_link_notice_errno(link, error, ...) log_link_full(link, LOG_NOTICE, error, ##__VA_ARGS__)
155 #define log_link_warning_errno(link, error, ...) log_link_full(link, LOG_WARNING, error, ##__VA_ARGS__)
156 #define log_link_error_errno(link, error, ...) log_link_full(link, LOG_ERR, error, ##__VA_ARGS__)
158 #define log_link_struct(link, level, ...) log_struct(level, "INTERFACE=%s", link->ifname, __VA_ARGS__)
160 #define ADDRESS_FMT_VAL(address) \
161 be32toh((address).s_addr) >> 24, \
162 (be32toh((address).s_addr) >> 16) & 0xFFu, \
163 (be32toh((address).s_addr) >> 8) & 0xFFu, \
164 be32toh((address).s_addr) & 0xFFu