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/>.
26 typedef enum LinkState {
29 LINK_STATE_SETTING_ADDRESSES,
30 LINK_STATE_SETTING_ROUTES,
31 LINK_STATE_CONFIGURED,
36 _LINK_STATE_INVALID = -1
39 typedef enum LinkOperationalState {
41 LINK_OPERSTATE_NO_CARRIER,
42 LINK_OPERSTATE_DORMANT,
43 LINK_OPERSTATE_CARRIER,
44 LINK_OPERSTATE_DEGRADED,
45 LINK_OPERSTATE_ROUTABLE,
47 _LINK_OPERSTATE_INVALID = -1
48 } LinkOperationalState;
58 struct ether_addr mac;
60 struct udev_device *udev_device;
63 uint8_t kernel_operstate;
68 LinkOperationalState operstate;
70 unsigned link_messages;
73 LIST_HEAD(Address, addresses);
75 sd_dhcp_client *dhcp_client;
76 sd_dhcp_lease *dhcp_lease;
78 uint16_t original_mtu;
79 unsigned dhcp4_messages;
80 bool dhcp4_configured;
86 bool static_configured;
88 LIST_HEAD(Address, pool_addresses);
90 sd_dhcp_server *dhcp_server;
92 sd_icmp6_nd *icmp6_router_discovery;
93 sd_dhcp6_client *dhcp6_client;
96 Link *link_unref(Link *link);
97 Link *link_ref(Link *link);
98 int link_get(Manager *m, int ifindex, Link **ret);
99 int link_add(Manager *manager, sd_rtnl_message *message, Link **ret);
100 void link_drop(Link *link);
102 int link_address_drop_handler(sd_rtnl *rtnl, sd_rtnl_message *m, void *userdata);
103 int link_route_drop_handler(sd_rtnl *rtnl, sd_rtnl_message *m, void *userdata);
105 void link_enter_failed(Link *link);
106 int link_initialized(Link *link, struct udev_device *device);
108 void link_client_handler(Link *link);
110 int link_update(Link *link, sd_rtnl_message *message);
111 int link_rtnl_process_address(sd_rtnl *rtnl, sd_rtnl_message *message, void *userdata);
113 int link_save(Link *link);
115 bool link_has_carrier(Link *link);
117 int link_set_mtu(Link *link, uint32_t mtu);
118 int link_set_hostname(Link *link, const char *hostname);
120 int ipv4ll_configure(Link *link);
121 int dhcp4_configure(Link *link);
122 int icmp6_configure(Link *link);
124 const char* link_state_to_string(LinkState s) _const_;
125 LinkState link_state_from_string(const char *s) _pure_;
127 const char* link_operstate_to_string(LinkOperationalState s) _const_;
128 LinkOperationalState link_operstate_from_string(const char *s) _pure_;
130 DEFINE_TRIVIAL_CLEANUP_FUNC(Link*, link_unref);
131 #define _cleanup_link_unref_ _cleanup_(link_unrefp)
133 /* Macros which append INTERFACE= to the message */
135 #define log_link_full(link, level, error, fmt, ...) \
136 log_object_internal(level, error, __FILE__, __LINE__, __func__, "INTERFACE=", link->ifname, "%-*s: " fmt, IFNAMSIZ, link->ifname, ##__VA_ARGS__)
138 #define log_link_debug(link, ...) log_link_full(link, LOG_DEBUG, 0, ##__VA_ARGS__)
139 #define log_link_info(link, ...) log_link_full(link, LOG_INFO, 0, ##__VA_ARGS__)
140 #define log_link_notice(link, ...) log_link_full(link, LOG_NOTICE, 0, ##__VA_ARGS__)
141 #define log_link_warning(link, ...) log_link_full(link, LOG_WARNING, 0, ##__VA_ARGS__)
142 #define log_link_error(link, ...) log_link_full(link, LOG_ERR, 0, ##__VA_ARGS__)
144 #define log_link_debug_errno(link, error, ...) log_link_full(link, LOG_DEBUG, error, ##__VA_ARGS__)
145 #define log_link_info_errno(link, error, ...) log_link_full(link, LOG_INFO, error, ##__VA_ARGS__)
146 #define log_link_notice_errno(link, error, ...) log_link_full(link, LOG_NOTICE, error, ##__VA_ARGS__)
147 #define log_link_warning_errno(link, error, ...) log_link_full(link, LOG_WARNING, error, ##__VA_ARGS__)
148 #define log_link_error_errno(link, error, ...) log_link_full(link, LOG_ERR, error, ##__VA_ARGS__)
150 #define log_link_struct(link, level, ...) log_struct(level, "INTERFACE=%s", link->ifname, __VA_ARGS__)
152 #define ADDRESS_FMT_VAL(address) \
153 (address).s_addr & 0xFF, \
154 ((address).s_addr >> 8) & 0xFF, \
155 ((address).s_addr >> 16) & 0xFF, \
156 (address).s_addr >> 24