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 } 114
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