157 lines
5.1 KiB
C
157 lines
5.1 KiB
C
/****************************************************************************
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* net/inet/ipv6_setsockopt.c
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*
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* Copyright (C) 2018 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <gnutt@nuttx.org>
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name NuttX nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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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/types.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 <nuttx/net/net.h>
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#include "mld/mld.h"
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#include "inet/inet.h"
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#ifdef CONFIG_NET_IPv6
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: ipv6_setsockopt
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*
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* Description:
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* ipv6_setsockopt() sets the IPv6-protocol socket option specified by the
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* 'option' argument to the value pointed to by the 'value' argument for
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* the socket specified by the 'psock' argument.
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*
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* See <netinet/in.h> for the a complete list of values of IPv6 protocol
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* socket options.
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*
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* Input Parameters:
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* psock Socket structure of socket to operate on
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* option identifies the option to set
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* value Points to the argument value
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* value_len The length of the argument value
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*
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* Returned Value:
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* Returns zero (OK) on success. On failure, it returns a negated errno
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* value to indicate the nature of the error. See psock_setcockopt() for
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* the list of possible error values.
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*
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****************************************************************************/
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int ipv6_setsockopt(FAR struct socket *psock, int option,
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FAR const void *value, socklen_t value_len)
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{
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#ifdef CONFIG_NET_MLD
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int ret;
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ninfo("option: %d\n", option);
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/* Handle MLD-related socket options */
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net_lock();
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switch (option)
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{
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case IPV6_JOIN_GROUP: /* Join a multicast group */
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{
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FAR const struct ipv6_mreq *mrec ;
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mrec = (FAR const struct ipv6_mreq *)value;
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if (mrec == NULL)
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{
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ret = -EINVAL;
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}
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else
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{
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ret = mld_joingroup(mrec);
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}
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}
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break;
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case IPV6_LEAVE_GROUP: /* Quit a multicast group */
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{
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FAR const struct ipv6_mreq *mrec ;
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mrec = (FAR const struct ipv6_mreq *)value;
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if (mrec == NULL)
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{
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ret = -EINVAL;
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}
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else
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{
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ret = mld_leavegroup(mrec);
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}
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}
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break;
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/* The following IPv6 socket options are defined, but not implemented */
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case IPV6_MULTICAST_HOPS: /* Multicast hop limit */
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case IPV6_MULTICAST_IF: /* Interface to use for outgoing multicast
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* packets */
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case IPV6_MULTICAST_LOOP: /* Multicast packets are delivered back to
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* the local application */
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case IPV6_UNICAST_HOPS: /* Unicast hop limit */
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case IPV6_V6ONLY: /* Restrict AF_INET6 socket to IPv6
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* communications only */
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nwarn("WARNING: Unimplemented IPv6 option: %d\n", option);
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ret = -ENOSYS;
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break;
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default:
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nerr("ERROR: Unrecognized IPv6 option: %d\n", option);
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ret = -ENOPROTOOPT;
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break;
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}
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net_unlock();
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return ret;
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#else
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return -ENOPROTOOPT;
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#endif
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}
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#endif /* CONFIG_NET_IPv6 */
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