device: Don't process link events anymore in device user specific callback handlers
[project/netifd.git] / interface-ip.h
1 /*
2 * netifd - network interface daemon
3 * Copyright (C) 2012 Felix Fietkau <nbd@openwrt.org>
4 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License version 2
7 * as published by the Free Software Foundation
8 *
9 * This program is distributed in the hope that it will be useful,
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 * GNU General Public License for more details.
13 */
14 #ifndef __INTERFACE_IP_H
15 #define __INTERFACE_IP_H
16
17 #include "interface.h"
18
19 enum device_addr_flags {
20 /* address family for routes and addresses */
21 DEVADDR_INET4 = (0 << 0),
22 DEVADDR_INET6 = (1 << 0),
23 DEVADDR_FAMILY = DEVADDR_INET4 | DEVADDR_INET6,
24
25 /* externally added address */
26 DEVADDR_EXTERNAL = (1 << 2),
27
28 /* route overrides the default interface metric */
29 DEVROUTE_METRIC = (1 << 3),
30
31 /* route overrides the default interface mtu */
32 DEVROUTE_MTU = (1 << 4),
33
34 /* route automatically added by kernel */
35 DEVADDR_KERNEL = (1 << 5),
36
37 /* address is off-link (no subnet-route) */
38 DEVADDR_OFFLINK = (1 << 6),
39
40 /* route resides in different table */
41 DEVROUTE_TABLE = (1 << 7),
42
43 /* route resides in default source-route table */
44 DEVROUTE_SRCTABLE = (1 << 8),
45
46 /* route is on-link */
47 DEVROUTE_ONLINK = (1 << 9),
48
49 /* route overrides the default route type */
50 DEVROUTE_TYPE = (1 << 10),
51 };
52
53 union if_addr {
54 struct in_addr in;
55 struct in6_addr in6;
56 };
57
58 struct device_prefix_assignment {
59 struct list_head head;
60 int32_t assigned;
61 uint8_t length;
62 struct in6_addr addr;
63 bool enabled;
64 char name[];
65 };
66
67 struct device_prefix {
68 struct vlist_node node;
69 struct list_head head;
70 struct list_head assignments;
71 struct interface *iface;
72 time_t valid_until;
73 time_t preferred_until;
74
75 struct in6_addr excl_addr;
76 uint8_t excl_length;
77
78 struct in6_addr addr;
79 uint8_t length;
80
81 char pclass[];
82 };
83
84 struct device_addr {
85 struct vlist_node node;
86 bool enabled;
87 bool failed;
88 unsigned int policy_table;
89
90 /* ipv4 only */
91 uint32_t broadcast;
92 uint32_t point_to_point;
93
94 /* ipv6 only */
95 time_t valid_until;
96 time_t preferred_until;
97 char *pclass;
98
99 /* must be last */
100 enum device_addr_flags flags;
101 unsigned int mask;
102 union if_addr addr;
103 };
104
105 struct device_route {
106 struct vlist_node node;
107 struct interface *iface;
108
109 bool enabled;
110 bool keep;
111 bool failed;
112
113 union if_addr nexthop;
114 int mtu;
115 unsigned int type;
116 time_t valid_until;
117
118 /* must be last */
119 enum device_addr_flags flags;
120 int metric; // there can be multiple routes to the same target
121 unsigned int table;
122 unsigned int mask;
123 unsigned int sourcemask;
124 union if_addr addr;
125 union if_addr source;
126 };
127
128 struct device_source_table {
129 struct list_head head;
130 uint32_t table;
131 uint16_t refcount;
132 uint8_t v6;
133 uint8_t mask;
134 union if_addr addr;
135 };
136
137 struct dns_server {
138 struct vlist_simple_node node;
139 int af;
140 union if_addr addr;
141 };
142
143 struct dns_search_domain {
144 struct vlist_simple_node node;
145 char name[];
146 };
147
148 extern const struct uci_blob_param_list route_attr_list;
149 extern struct list_head prefixes;
150
151 void interface_ip_init(struct interface *iface);
152 void interface_add_dns_server(struct interface_ip_settings *ip, const char *str);
153 void interface_add_dns_server_list(struct interface_ip_settings *ip, struct blob_attr *list);
154 void interface_add_dns_search_list(struct interface_ip_settings *ip, struct blob_attr *list);
155 void interface_write_resolv_conf(void);
156
157 void interface_ip_add_route(struct interface *iface, struct blob_attr *attr, bool v6);
158
159 void interface_ip_update_start(struct interface_ip_settings *ip);
160 void interface_ip_update_complete(struct interface_ip_settings *ip);
161 void interface_ip_flush(struct interface_ip_settings *ip);
162 void interface_ip_set_enabled(struct interface_ip_settings *ip, bool enabled);
163 void interface_ip_update_metric(struct interface_ip_settings *ip, int metric);
164
165 struct interface *interface_ip_add_target_route(union if_addr *addr, bool v6, struct interface *iface);
166
167 struct device_prefix* interface_ip_add_device_prefix(struct interface *iface,
168 struct in6_addr *addr, uint8_t length, time_t valid_until, time_t preferred_until,
169 struct in6_addr *excl_addr, uint8_t excl_length, const char *pclass);
170 void interface_ip_set_ula_prefix(const char *prefix);
171 void interface_refresh_assignments(bool hint);
172
173 #endif