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1 | /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ |
2 | ||
3 | /*** | |
4 | This file is part of systemd. | |
5 | ||
6 | Copyright 2013 Tom Gundersen <teg@jklm.no> | |
7 | ||
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. | |
12 | ||
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. | |
17 | ||
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/>. | |
20 | ***/ | |
21 | ||
22 | #pragma once | |
23 | ||
24 | #include "networkd.h" | |
25 | ||
26 | typedef enum LinkState { | |
27 | LINK_STATE_PENDING, | |
28 | LINK_STATE_ENSLAVING, | |
29 | LINK_STATE_SETTING_ADDRESSES, | |
30 | LINK_STATE_SETTING_ROUTES, | |
31 | LINK_STATE_CONFIGURED, | |
32 | LINK_STATE_UNMANAGED, | |
33 | LINK_STATE_FAILED, | |
34 | LINK_STATE_LINGER, | |
35 | _LINK_STATE_MAX, | |
36 | _LINK_STATE_INVALID = -1 | |
37 | } LinkState; | |
38 | ||
39 | typedef enum LinkOperationalState { | |
40 | LINK_OPERSTATE_OFF, | |
41 | LINK_OPERSTATE_NO_CARRIER, | |
42 | LINK_OPERSTATE_DORMANT, | |
43 | LINK_OPERSTATE_CARRIER, | |
44 | LINK_OPERSTATE_DEGRADED, | |
45 | LINK_OPERSTATE_ROUTABLE, | |
46 | _LINK_OPERSTATE_MAX, | |
47 | _LINK_OPERSTATE_INVALID = -1 | |
48 | } LinkOperationalState; | |
49 | ||
50 | struct Link { | |
51 | Manager *manager; | |
52 | ||
53 | int n_ref; | |
54 | ||
55 | int ifindex; | |
56 | char *ifname; | |
57 | char *state_file; | |
58 | struct ether_addr mac; | |
59 | uint32_t mtu; | |
60 | struct udev_device *udev_device; | |
61 | ||
62 | unsigned flags; | |
63 | uint8_t kernel_operstate; | |
64 | ||
65 | Network *network; | |
66 | ||
67 | LinkState state; | |
68 | LinkOperationalState operstate; | |
69 | ||
70 | unsigned link_messages; | |
71 | unsigned enslaving; | |
72 | ||
73 | LIST_HEAD(Address, addresses); | |
74 | ||
75 | sd_dhcp_client *dhcp_client; | |
76 | sd_dhcp_lease *dhcp_lease; | |
77 | char *lease_file; | |
78 | uint16_t original_mtu; | |
79 | unsigned dhcp4_messages; | |
80 | bool dhcp4_configured; | |
81 | ||
82 | sd_ipv4ll *ipv4ll; | |
83 | bool ipv4ll_address; | |
84 | bool ipv4ll_route; | |
85 | ||
86 | bool static_configured; | |
87 | ||
88 | LIST_HEAD(Address, pool_addresses); | |
89 | ||
90 | sd_dhcp_server *dhcp_server; | |
91 | ||
92 | sd_icmp6_nd *icmp6_router_discovery; | |
93 | sd_dhcp6_client *dhcp6_client; | |
94 | }; | |
95 | ||
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); | |
101 | ||
102 | int link_get_address_handler(sd_rtnl *rtnl, sd_rtnl_message *m, void *userdata); | |
103 | int link_address_drop_handler(sd_rtnl *rtnl, sd_rtnl_message *m, void *userdata); | |
104 | int link_route_drop_handler(sd_rtnl *rtnl, sd_rtnl_message *m, void *userdata); | |
105 | ||
106 | void link_enter_failed(Link *link); | |
107 | int link_initialized(Link *link, struct udev_device *device); | |
108 | ||
109 | void link_client_handler(Link *link); | |
110 | ||
111 | int link_update(Link *link, sd_rtnl_message *message); | |
112 | int link_rtnl_process_address(sd_rtnl *rtnl, sd_rtnl_message *message, void *userdata); | |
113 | ||
114 | int link_save(Link *link); | |
115 | ||
116 | bool link_has_carrier(Link *link); | |
117 | ||
118 | int link_set_mtu(Link *link, uint32_t mtu); | |
119 | int link_set_hostname(Link *link, const char *hostname); | |
120 | ||
121 | int ipv4ll_configure(Link *link); | |
122 | int dhcp4_configure(Link *link); | |
123 | ||
124 | const char* link_state_to_string(LinkState s) _const_; | |
125 | LinkState link_state_from_string(const char *s) _pure_; | |
126 | ||
127 | const char* link_operstate_to_string(LinkOperationalState s) _const_; | |
128 | LinkOperationalState link_operstate_from_string(const char *s) _pure_; | |
129 | ||
130 | DEFINE_TRIVIAL_CLEANUP_FUNC(Link*, link_unref); | |
131 | #define _cleanup_link_unref_ _cleanup_(link_unrefp) | |
132 | ||
133 | /* Macros which append INTERFACE= to the message */ | |
134 | ||
135 | #define log_full_link(level, link, fmt, ...) log_meta_object(level, __FILE__, __LINE__, __func__, "INTERFACE=", link->ifname, "%-*s: " fmt, IFNAMSIZ, link->ifname, ##__VA_ARGS__) | |
136 | #define log_debug_link(link, ...) log_full_link(LOG_DEBUG, link, ##__VA_ARGS__) | |
137 | #define log_info_link(link, ...) log_full_link(LOG_INFO, link, ##__VA_ARGS__) | |
138 | #define log_notice_link(link, ...) log_full_link(LOG_NOTICE, link, ##__VA_ARGS__) | |
139 | #define log_warning_link(link, ...) log_full_link(LOG_WARNING, link, ##__VA_ARGS__) | |
140 | #define log_error_link(link, ...) log_full_link(LOG_ERR, link, ##__VA_ARGS__) | |
141 | ||
142 | #define log_struct_link(level, link, ...) log_struct(level, "INTERFACE=%s", link->ifname, __VA_ARGS__) | |
143 | ||
144 | #define ADDRESS_FMT_VAL(address) \ | |
145 | (address).s_addr & 0xFF, \ | |
146 | ((address).s_addr >> 8) & 0xFF, \ | |
147 | ((address).s_addr >> 16) & 0xFF, \ | |
148 | (address).s_addr >> 24 |