device: Don't process link events anymore in device user specific callback handlers
[project/netifd.git] / proto-static.c
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 #include <string.h>
15 #include <stdlib.h>
16 #include <stdio.h>
17
18 #include <arpa/inet.h>
19 #include <netinet/in.h>
20
21 #include "netifd.h"
22 #include "interface.h"
23 #include "interface-ip.h"
24 #include "proto.h"
25 #include "system.h"
26
27 struct static_proto_state {
28 struct interface_proto_state proto;
29
30 struct blob_attr *config;
31 };
32
33 static bool
34 static_proto_setup(struct static_proto_state *state)
35 {
36 struct interface *iface = state->proto.iface;
37 struct device *dev = iface->main_dev.dev;
38
39 interface_set_l3_dev(iface, dev);
40 return proto_apply_static_ip_settings(state->proto.iface, state->config) == 0;
41 }
42
43 static int
44 static_handler(struct interface_proto_state *proto,
45 enum interface_proto_cmd cmd, bool force)
46 {
47 struct static_proto_state *state;
48 int ret = 0;
49
50 state = container_of(proto, struct static_proto_state, proto);
51
52 switch (cmd) {
53 case PROTO_CMD_SETUP:
54 if (!static_proto_setup(state))
55 return -1;
56
57 break;
58 case PROTO_CMD_TEARDOWN:
59 case PROTO_CMD_RENEW:
60 break;
61 }
62
63 return ret;
64 }
65
66 static void
67 static_free(struct interface_proto_state *proto)
68 {
69 struct static_proto_state *state;
70
71 state = container_of(proto, struct static_proto_state, proto);
72 free(state->config);
73 free(state);
74 }
75
76 static struct interface_proto_state *
77 static_attach(const struct proto_handler *h, struct interface *iface,
78 struct blob_attr *attr)
79 {
80 struct static_proto_state *state;
81
82 state = calloc(1, sizeof(*state));
83 if (!state)
84 return NULL;
85
86 state->config = malloc(blob_pad_len(attr));
87 if (!state->config)
88 goto error;
89
90 memcpy(state->config, attr, blob_pad_len(attr));
91 state->proto.free = static_free;
92 state->proto.cb = static_handler;
93
94 return &state->proto;
95
96 error:
97 free(state);
98 return NULL;
99 }
100
101 static struct proto_handler static_proto = {
102 .name = "static",
103 .flags = PROTO_FLAG_IMMEDIATE |
104 PROTO_FLAG_FORCE_LINK_DEFAULT,
105 .config_params = &proto_ip_attr,
106 .attach = static_attach,
107 };
108
109 static void __init
110 static_proto_init(void)
111 {
112 add_proto_handler(&static_proto);
113 }