kmp_addr.c

00001 /*
00002  * Copyright (c) 2016-2019, Arm Limited and affiliates.
00003  * SPDX-License-Identifier: Apache-2.0
00004  *
00005  * Licensed under the Apache License, Version 2.0 (the "License");
00006  * you may not use this file except in compliance with the License.
00007  * You may obtain a copy of the License at
00008  *
00009  *     http://www.apache.org/licenses/LICENSE-2.0
00010  *
00011  * Unless required by applicable law or agreed to in writing, software
00012  * distributed under the License is distributed on an "AS IS" BASIS,
00013  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
00014  * See the License for the specific language governing permissions and
00015  * limitations under the License.
00016  */
00017 
00018 #include "nsconfig.h"
00019 #include <string.h>
00020 #include "ns_types.h"
00021 #include "ns_list.h"
00022 #include "ns_trace.h"
00023 #include "nsdynmemLIB.h"
00024 #include "eventOS_event.h"
00025 #include "eventOS_scheduler.h"
00026 #include "eventOS_event_timer.h"
00027 #include "NWK_INTERFACE/Include/protocol.h"
00028 #include "Common_Protocols/ipv6_constants.h"
00029 #include "6LoWPAN/ws/ws_config.h"
00030 #include "Security/kmp/kmp_addr.h"
00031 
00032 #ifdef HAVE_WS
00033 
00034 #define TRACE_GROUP "kmar"
00035 
00036 void kmp_address_init(kmp_addr_e type, kmp_addr_t *addr, const uint8_t *eui_64)
00037 {
00038     memset(addr, 0, sizeof(kmp_addr_t));
00039     addr->type = type;
00040     if (eui_64) {
00041         memcpy(addr->eui_64, eui_64, 8);
00042     }
00043 }
00044 
00045 
00046 const uint8_t *kmp_address_eui_64_get(const kmp_addr_t *addr)
00047 {
00048     if (!addr) {
00049         return NULL;
00050     }
00051 
00052     return addr->eui_64;
00053 }
00054 
00055 const uint8_t *kmp_address_ip_get(const kmp_addr_t *addr)
00056 {
00057     if (!addr || addr->type != KMP_ADDR_EUI_64_AND_IP) {
00058         return NULL;
00059     }
00060 
00061     return addr->relay_address;
00062 }
00063 
00064 int8_t kmp_address_eui_64_set(kmp_addr_t *addr, const uint8_t *eui64)
00065 {
00066     if (!addr) {
00067         return -1;
00068     }
00069 
00070     memcpy(addr->eui_64, eui64, 8);
00071     return 0;
00072 }
00073 
00074 int8_t kmp_address_copy(kmp_addr_t *to_addr, const kmp_addr_t *from_addr)
00075 {
00076     if (!to_addr || !from_addr) {
00077         return -1;
00078     }
00079 
00080     memcpy(to_addr->eui_64, from_addr->eui_64, 8);
00081 
00082     if (to_addr->type == KMP_ADDR_EUI_64_AND_IP
00083             && from_addr->type == KMP_ADDR_EUI_64_AND_IP) {
00084         memcpy(to_addr->relay_address, from_addr->relay_address, sizeof(address_t));
00085         to_addr->port = from_addr->port;
00086     } else if (to_addr->type == KMP_ADDR_EUI_64_AND_IP) {
00087         memset(to_addr->relay_address, 0, sizeof(address_t));
00088         to_addr->port = 0;
00089     }
00090 
00091     return 0;
00092 }
00093 
00094 #endif /* HAVE_WS */
00095