155 lines
4.0 KiB
C
155 lines
4.0 KiB
C
/****************************************************************************
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* apps/netutils/netlib/netlib_obtainipv6addr.c
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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*
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****************************************************************************/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <sys/socket.h>
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#include <sys/ioctl.h>
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#include <unistd.h>
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#include <string.h>
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#include <errno.h>
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#include <debug.h>
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#include <netinet/in.h>
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#include <net/if.h>
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#include <nuttx/net/dns.h>
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#include "netutils/netlib.h"
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#include "netutils/dhcp6c.h"
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/****************************************************************************
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* Private Functions
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****************************************************************************/
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static int dhcpv6_setup_result(FAR const char *ifname,
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FAR struct dhcp6c_state *presult)
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{
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int ret;
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#ifdef CONFIG_NETDEV_MULTIPLE_IPv6
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ret = netlib_add_ipv6addr(ifname, &presult->addr, presult->pl);
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if (ret != OK)
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{
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nerr("netlib_add_ipv6addr fail\n");
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return ret;
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}
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#else
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ret = netlib_set_ipv6addr(ifname, &presult->addr);
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if (ret != OK)
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{
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nerr("netlib_set_ipv6addr fail\n");
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return ret;
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}
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ret = netlib_set_ipv6netmask(ifname, &presult->netmask);
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if (ret != OK)
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{
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nerr("netlib_set_ipv6netmask fail\n");
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return ret;
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}
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#endif
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#if defined(CONFIG_NET_IPv6) && defined(CONFIG_NETDB_DNSCLIENT)
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ret = netlib_set_ipv6dnsaddr(&presult->dns);
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if (ret != OK)
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{
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nerr("netlib_set_ipv6dnsaddr fail\n");
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return ret;
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}
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#endif
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return ret;
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}
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static int dhcpv6_obtain_statefuladdr(FAR const char *ifname)
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{
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FAR void *handle = NULL;
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struct dhcp6c_state result;
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int ret;
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memset(&result, 0, sizeof(result));
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handle = dhcp6c_open(ifname);
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ret = dhcp6c_request(handle, &result);
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if (ret == OK)
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{
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dhcpv6_setup_result(ifname, &result);
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}
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else
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{
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nerr("dhcp6c_request fail\n");
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}
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dhcp6c_close(handle);
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return ret;
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}
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: netlib_obtain_ipv6addr
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*
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* Description:
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* Perform ICMPv6 auto-configuration and DHCPv6 in an attempt to
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* get the IP address of the specified network device.
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*
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* Parameters:
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* ifname The name of the interface
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*
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* Return:
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* 0 on success; negative integer on failure
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*
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****************************************************************************/
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int netlib_obtain_ipv6addr(FAR const char *ifname)
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{
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int ret;
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if (ifname == NULL)
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{
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/* No interface name */
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errno = EINVAL;
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return ERROR;
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}
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ret = netlib_icmpv6_autoconfiguration(ifname);
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if (ret)
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{
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if (errno == EADDRNOTAVAIL)
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{
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ninfo("obtain IPv6 address by dhcpv6\n");
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ret = dhcpv6_obtain_statefuladdr(ifname);
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}
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else
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{
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nerr("netlib_icmpv6_autoconfiguration fail\n");
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}
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}
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return ret;
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}
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