| /**************************************************************************** |
| * apps/netutils/netlib/netlib_delipv6addr.c |
| * |
| * Licensed to the Apache Software Foundation (ASF) under one or more |
| * contributor license agreements. See the NOTICE file distributed with |
| * this work for additional information regarding copyright ownership. The |
| * ASF licenses this file to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance with the |
| * License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT |
| * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the |
| * License for the specific language governing permissions and limitations |
| * under the License. |
| * |
| ****************************************************************************/ |
| |
| /**************************************************************************** |
| * Included Files |
| ****************************************************************************/ |
| |
| #include <nuttx/config.h> |
| #ifdef CONFIG_NETDEV_MULTIPLE_IPv6 |
| |
| #include <sys/socket.h> |
| #include <sys/ioctl.h> |
| |
| #include <unistd.h> |
| #include <string.h> |
| #include <errno.h> |
| |
| #include <netinet/in.h> |
| #include <net/if.h> |
| |
| #include "netutils/netlib.h" |
| |
| /**************************************************************************** |
| * Public Functions |
| ****************************************************************************/ |
| |
| /**************************************************************************** |
| * Name: netlib_del_ipv6addr |
| * |
| * Description: |
| * Remove an IPv6 address from the network driver |
| * |
| * Parameters: |
| * ifname The name of the interface to use |
| * ipaddr The address to delete |
| * preflen The prefix length of the address |
| * |
| * Return: |
| * 0 on success; -1 on failure |
| * |
| ****************************************************************************/ |
| |
| int netlib_del_ipv6addr(FAR const char *ifname, |
| FAR const struct in6_addr *addr, uint8_t preflen) |
| { |
| int ret = ERROR; |
| |
| if (ifname && addr) |
| { |
| int sockfd = socket(AF_INET6, NET_SOCK_TYPE, NET_SOCK_PROTOCOL); |
| if (sockfd >= 0) |
| { |
| struct ifreq req; |
| struct in6_ifreq ifr6; |
| |
| /* Add the device name to the request */ |
| |
| strlcpy(req.ifr_name, ifname, IFNAMSIZ); |
| |
| /* Get interface index */ |
| |
| ret = ioctl(sockfd, SIOCGIFINDEX, |
| ((unsigned long)(uintptr_t)&req)); |
| if (ret == OK) |
| { |
| /* Delete address from the interface. */ |
| |
| ifr6.ifr6_ifindex = req.ifr_ifindex; |
| ifr6.ifr6_prefixlen = preflen; |
| memcpy(&ifr6.ifr6_addr, addr, sizeof(struct in6_addr)); |
| |
| ret = ioctl(sockfd, SIOCDIFADDR, |
| ((unsigned long)(uintptr_t)&ifr6)); |
| } |
| |
| close(sockfd); |
| } |
| } |
| |
| return ret; |
| } |
| |
| #endif /* CONFIG_NETDEV_MULTIPLE_IPv6 */ |