net/mld: Add basic build structure for Multicast Listener Discovery (MLD). No real MLD logic yet. Only a few hooks to capture and dispatch MLD ICMPv6 packets.
This commit is contained in:
Gregory Nutt
parent
a3c67df91d
commit
dde1e89b8c
@ -71,9 +71,9 @@
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#define ICMPv6_RESERVED_ERROR_MSG 127
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#define ICMPv6_ECHO_REQUEST 128
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#define ICMPv6_ECHO_REPLY 129
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#define ICMPV6_MCAST_LISTEN_QUERY 130 /* RFC 2710 */
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#define ICMPV6_MCAST_LISTEN_REPORT 131
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#define ICMPV6_MCAST_LISTEN_DONE 132
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#define ICMPV6_MCAST_LISTEN_QUERY 130 /* RFC 2710 and 3810 */
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#define ICMPV6_MCAST_LISTEN_REPORT_V1 131 /* RFC 2710 */
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#define ICMPV6_MCAST_LISTEN_DONE_V1 132 /* RFC 2710 */
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#define ICMPV6_ROUTER_SOLICIT 133 /* RFC 4861 */
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#define ICMPV6_ROUTER_ADVERTISE 134
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#define ICMPv6_NEIGHBOR_SOLICIT 135
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@ -1,5 +1,6 @@
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/****************************************************************************
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* include/nuttx/net/mld.h
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* Multicast Listener Discovery (MLD) Definitions
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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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@ -306,6 +306,7 @@ source "net/bluetooth/Kconfig"
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source "net/ieee802154/Kconfig"
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source "net/icmp/Kconfig"
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source "net/icmpv6/Kconfig"
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source "net/mld/Kconfig"
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source "net/igmp/Kconfig"
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source "net/arp/Kconfig"
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source "net/loopback/Kconfig"
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@ -65,6 +65,7 @@ include neighbor/Make.defs
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include igmp/Make.defs
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include pkt/Make.defs
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include local/Make.defs
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include mld/Make.defs
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include netlink/Make.defs
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include tcp/Make.defs
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include udp/Make.defs
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@ -18,6 +18,7 @@ Directory Structure
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+- ipforward - IP forwarding logic
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+- local - Unix domain (local) sockets
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+- loopback - Local loopback
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+- mld - Multicast Listener Discovery (MLD)
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+- neighbor - Neighbor Discovery Protocol (IPv6)
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+- netdev - Socket network device interface
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+- netlink - Netlink IPC socket interface
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@ -57,6 +57,7 @@
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#include "neighbor/neighbor.h"
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#include "utils/utils.h"
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#include "icmpv6/icmpv6.h"
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#include "mld/mld.h"
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#ifdef CONFIG_NET_ICMPv6
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@ -82,6 +83,15 @@
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#define ICMPv6RADVERTISE \
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((struct icmpv6_router_advertise_s *)&dev->d_buf[NET_LL_HDRLEN(dev) + IPv6_HDRLEN])
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#define MLDQUEURY \
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((FAR struct mld_mcast_listen_query_s *)&dev->d_buf[NET_LL_HDRLEN(dev) + IPv6_HDRLEN])
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#define MLDREPORT_V1 \
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((FAR struct mld_mcast_listen_report_v1_s *)&dev->d_buf[NET_LL_HDRLEN(dev) + IPv6_HDRLEN])
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#define MLDREPORT_V2 \
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((FAR struct mld_mcast_listen_report_v2_s *)&dev->d_buf[NET_LL_HDRLEN(dev) + IPv6_HDRLEN])
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#define MLDDONE_V1 \
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((FAR struct mld_mcast_listen_done_v1_s *)&dev->d_buf[NET_LL_HDRLEN(dev) + IPv6_HDRLEN])
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/****************************************************************************
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* Private Functions
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****************************************************************************/
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@ -475,6 +485,71 @@ void icmpv6_input(FAR struct net_driver_s *dev)
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break;
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#endif
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#ifdef CONFIG_NET_MLD
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/* Dispatch received Multicast Listener Discovery (MLD) packets. */
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case ICMPV6_MCAST_LISTEN_QUERY: /* Multicast Listener Query, RFC 2710 and RFC 3810 */
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{
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FAR struct mld_mcast_listen_query_s *query = MLDQUEURY;
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int ret;
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ret = mld_query_input(dev, query);
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if (ret < 0)
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{
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goto icmpv6_drop_packet;
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}
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goto icmpv6_send_nothing; /* REVISIT */
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}
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break;
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case ICMPV6_MCAST_LISTEN_REPORT_V1: /* Version 1 Multicast Listener Report, RFC 2710 */
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{
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FAR struct mld_mcast_listen_report_v1_s *report = MLDREPORT_V1;
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int ret;
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ret = mld_report_v1(dev, report);
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if (ret < 0)
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{
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goto icmpv6_drop_packet;
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}
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goto icmpv6_send_nothing; /* REVISIT */
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}
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break;
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case ICMPV6_MCAST_LISTEN_REPORT_V2: /* Version 2 Multicast Listener Report, RFC 3810 */
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{
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FAR struct mld_mcast_listen_report_v2_s *report = MLDREPORT_V2;
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int ret;
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ret = mld_report_v2(dev, report);
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if (ret < 0)
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{
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goto icmpv6_drop_packet;
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}
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goto icmpv6_send_nothing; /* REVISIT */
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}
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break;
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case ICMPV6_MCAST_LISTEN_DONE_V1: /* Version 1 Multicast Listener Done, RFC 2710 */
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{
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FAR struct mld_mcast_listen_done_v1_s *done = MLDDONE_V1;
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int ret;
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ret = mld_done_v1(dev, done);
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if (ret < 0)
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{
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goto icmpv6_drop_packet;
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}
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goto icmpv6_send_nothing; /* REVISIT */
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}
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break;
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#endif
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default:
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{
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nwarn("WARNING: Unknown ICMPv6 type: %d\n", ipicmp->type);
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18
net/mld/Kconfig
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18
net/mld/Kconfig
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@ -0,0 +1,18 @@
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#
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# For a description of the syntax of this configuration file,
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# see the file kconfig-language.txt in the NuttX tools repository.
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#
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if NET_ICMPv6
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menuconfig NET_MLD
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bool "Multicast Listener Discovery (MLD)"
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default n
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depends on EXPERIMENTAL
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---help---
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Enable Multicast Listener Discovery (MLD) support.
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if NET_MLD
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endif # NET_MLD
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endif # NET_ICMPv6
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47
net/mld/Make.defs
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47
net/mld/Make.defs
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@ -0,0 +1,47 @@
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############################################################################
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# net/mld/Make.defs
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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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# Logic specific to Multicast Listener Discovery (MLD)
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ifeq ($(CONFIG_NET_MLD),y)
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SOCK_CSRCS +=
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NET_CSRCS +=
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# Include MLD build support
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DEPPATH += --dep-path mld
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VPATH += :mld
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endif
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149
net/mld/mld.h
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149
net/mld/mld.h
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@ -0,0 +1,149 @@
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/****************************************************************************
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* net/mld/mld.h
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* Multicast Listener Discovery (MLD) Definitions
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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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#ifndef __NET_NETLINK_MLD_H
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#define __NET_NETLINK_MLD_H
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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 <queue.h>
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#include <semaphore.h>
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#include "devif/devif.h"
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#include "socket/socket.h"
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#ifdef CONFIG_NET_MLD
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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/****************************************************************************
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* Public Type Definitions
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****************************************************************************/
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/****************************************************************************
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* Public Data
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****************************************************************************/
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#ifdef __cplusplus
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# define EXTERN extern "C"
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extern "C"
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{
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#else
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# define EXTERN extern
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#endif
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/****************************************************************************
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* Public Function Prototypes
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****************************************************************************/
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struct net_driver_s; /* Forward reference */
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struct mld_mcast_listen_query_s; /* Forward reference */
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struct mld_mcast_listen_report_v1_s; /* Forward reference */
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struct mld_mcast_listen_report_v2_s; /* Forward reference */
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struct mld_mcast_listen_done_v1_s; /* Forward reference */
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/****************************************************************************
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* Name: mld_initialize()
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*
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* Description:
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* Initialize the MLD structures. Called once and only from the
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* networking layer.
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*
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****************************************************************************/
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void mld_initialize(void);
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/****************************************************************************
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* Name: mld_query
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*
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* Description:
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* Called from icmpv6_input() when a Multicast Listener Query is received.
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*
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****************************************************************************/
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int mld_query_input(FAR struct net_driver_s *dev,
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FAR const struct mld_mcast_listen_query_s *query);
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/****************************************************************************
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* Name: mld_report_v1
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*
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* Description:
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* Called from icmpv6_input() when a Version 1 Multicast Listener Report is
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* received.
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*
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****************************************************************************/
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int mld_report_v1(FAR struct net_driver_s *dev,
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FAR const struct mld_mcast_listen_report_v1_s *report);
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/****************************************************************************
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* Name: mld_report_v2
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*
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* Description:
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* Called from icmpv6_input() when a Version 2 Multicast Listener Report is
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* received.
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*
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****************************************************************************/
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int mld_report_v2(FAR struct net_driver_s *dev,
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FAR const struct mld_mcast_listen_report_v2_s *report);
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/****************************************************************************
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* Name: mld_done_v1
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*
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* Description:
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* Called from icmpv6_input() when a Version 1 Multicast Listener Done is
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* received.
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*
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****************************************************************************/
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int mld_done_v1(FAR struct net_driver_s *dev,
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FAR const struct mld_mcast_listen_done_v1_s *done);
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#undef EXTERN
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#ifdef __cplusplus
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}
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#endif
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#endif /* CONFIG_NET_MLD */
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#endif /* __NET_NETLINK_MLD_H */
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@ -54,6 +54,7 @@
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#include "neighbor/neighbor.h"
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#include "icmp/icmp.h"
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#include "icmpv6/icmpv6.h"
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#include "mld/mld.h"
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#include "tcp/tcp.h"
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#include "udp/udp.h"
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#include "pkt/pkt.h"
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@ -108,6 +109,12 @@ void net_setup(void)
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neighbor_initialize();
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#ifdef CONFIG_NET_MLD
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/* Initialize ICMPv6 Multicast Listener Discovery (MLD) logic */
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mld_initialize();
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#endif
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#ifdef CONFIG_NET_6LOWPAN
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/* Initialize 6LoWPAN data structures */
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@ -91,7 +91,7 @@ EXTERN const struct sock_intf_s g_netlink_sockif;
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* Name: netlink_initialize()
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*
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* Description:
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* Initialize the User Socket connection structures. Called once and only
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* Initialize the NetLink connection structures. Called once and only
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* from the networking layer.
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*
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****************************************************************************/
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