incubator-nuttx/net/mld/mld_mcastmac.c

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Squashed commit of the following: net/mld: The MLD logic now compiles and is much less toxic. It still is not a proper MLD implementation: (1) It is basically a port of IGMP, tweaked to work with IPv6 and ICMPv6 MLD messages, (2) it needs a proper analysis and comparison with RFC 3810, and (3) it is completely untested. For this reason, it will remain EXPERIMENTAL for some time. net/mld: Add some missing macros, more fixes related to IPv6 vs IPv4 types, net/mld: More compilation cleaning. Most fixups for IPv6 vs IPv4 types. net/mld: Hook crudely converted .c files into build system and resolve a few of the many, many compilation/design problems. net/mld: Add support for MLD statistics. net/mld: Hook in MLD poll and packet transmission logic. net/mld: Change references to IPv4 definitions to IPv6 definitions; Remove mld_input() since MLD piggybacks on ICMPv6 input. Add functions to catch MLD messages dispatched by ICMPv6 input logic. net/mld: As a starting point, copy all net/igmp/*.c files to net/mld/. and change all occurrences of igmp (or IGMP) to mld (or MLD). net/mld: More compilation cleaning. Most fixups for IPv6 vs IPv4 types. net/mld: Hook crudely converted .c files into build system and resolve a few of the many, many compilation/design problems. net/mld: Add support for MLD statistics. net/mld: Hook in MLD poll and packet transmission logic. net/mld: Change references to IPv4 definitions to IPv6 definitions; Remove mld_input() since MLD piggybacks on ICMPv6 input. Add functions to catch MLD messages dispatched by ICMPv6 input logic. net/mld: As a starting point, copy all net/igmp/*.c files to net/mld/. and change all occurrences of igmp (or IGMP) to mld (or MLD).
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/****************************************************************************
* net/mld/mld_mcastmac.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
Squashed commit of the following: net/mld: The MLD logic now compiles and is much less toxic. It still is not a proper MLD implementation: (1) It is basically a port of IGMP, tweaked to work with IPv6 and ICMPv6 MLD messages, (2) it needs a proper analysis and comparison with RFC 3810, and (3) it is completely untested. For this reason, it will remain EXPERIMENTAL for some time. net/mld: Add some missing macros, more fixes related to IPv6 vs IPv4 types, net/mld: More compilation cleaning. Most fixups for IPv6 vs IPv4 types. net/mld: Hook crudely converted .c files into build system and resolve a few of the many, many compilation/design problems. net/mld: Add support for MLD statistics. net/mld: Hook in MLD poll and packet transmission logic. net/mld: Change references to IPv4 definitions to IPv6 definitions; Remove mld_input() since MLD piggybacks on ICMPv6 input. Add functions to catch MLD messages dispatched by ICMPv6 input logic. net/mld: As a starting point, copy all net/igmp/*.c files to net/mld/. and change all occurrences of igmp (or IGMP) to mld (or MLD). net/mld: More compilation cleaning. Most fixups for IPv6 vs IPv4 types. net/mld: Hook crudely converted .c files into build system and resolve a few of the many, many compilation/design problems. net/mld: Add support for MLD statistics. net/mld: Hook in MLD poll and packet transmission logic. net/mld: Change references to IPv4 definitions to IPv6 definitions; Remove mld_input() since MLD piggybacks on ICMPv6 input. Add functions to catch MLD messages dispatched by ICMPv6 input logic. net/mld: As a starting point, copy all net/igmp/*.c files to net/mld/. and change all occurrences of igmp (or IGMP) to mld (or MLD).
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*
* http://www.apache.org/licenses/LICENSE-2.0
Squashed commit of the following: net/mld: The MLD logic now compiles and is much less toxic. It still is not a proper MLD implementation: (1) It is basically a port of IGMP, tweaked to work with IPv6 and ICMPv6 MLD messages, (2) it needs a proper analysis and comparison with RFC 3810, and (3) it is completely untested. For this reason, it will remain EXPERIMENTAL for some time. net/mld: Add some missing macros, more fixes related to IPv6 vs IPv4 types, net/mld: More compilation cleaning. Most fixups for IPv6 vs IPv4 types. net/mld: Hook crudely converted .c files into build system and resolve a few of the many, many compilation/design problems. net/mld: Add support for MLD statistics. net/mld: Hook in MLD poll and packet transmission logic. net/mld: Change references to IPv4 definitions to IPv6 definitions; Remove mld_input() since MLD piggybacks on ICMPv6 input. Add functions to catch MLD messages dispatched by ICMPv6 input logic. net/mld: As a starting point, copy all net/igmp/*.c files to net/mld/. and change all occurrences of igmp (or IGMP) to mld (or MLD). net/mld: More compilation cleaning. Most fixups for IPv6 vs IPv4 types. net/mld: Hook crudely converted .c files into build system and resolve a few of the many, many compilation/design problems. net/mld: Add support for MLD statistics. net/mld: Hook in MLD poll and packet transmission logic. net/mld: Change references to IPv4 definitions to IPv6 definitions; Remove mld_input() since MLD piggybacks on ICMPv6 input. Add functions to catch MLD messages dispatched by ICMPv6 input logic. net/mld: As a starting point, copy all net/igmp/*.c files to net/mld/. and change all occurrences of igmp (or IGMP) to mld (or MLD).
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*
* 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.
Squashed commit of the following: net/mld: The MLD logic now compiles and is much less toxic. It still is not a proper MLD implementation: (1) It is basically a port of IGMP, tweaked to work with IPv6 and ICMPv6 MLD messages, (2) it needs a proper analysis and comparison with RFC 3810, and (3) it is completely untested. For this reason, it will remain EXPERIMENTAL for some time. net/mld: Add some missing macros, more fixes related to IPv6 vs IPv4 types, net/mld: More compilation cleaning. Most fixups for IPv6 vs IPv4 types. net/mld: Hook crudely converted .c files into build system and resolve a few of the many, many compilation/design problems. net/mld: Add support for MLD statistics. net/mld: Hook in MLD poll and packet transmission logic. net/mld: Change references to IPv4 definitions to IPv6 definitions; Remove mld_input() since MLD piggybacks on ICMPv6 input. Add functions to catch MLD messages dispatched by ICMPv6 input logic. net/mld: As a starting point, copy all net/igmp/*.c files to net/mld/. and change all occurrences of igmp (or IGMP) to mld (or MLD). net/mld: More compilation cleaning. Most fixups for IPv6 vs IPv4 types. net/mld: Hook crudely converted .c files into build system and resolve a few of the many, many compilation/design problems. net/mld: Add support for MLD statistics. net/mld: Hook in MLD poll and packet transmission logic. net/mld: Change references to IPv4 definitions to IPv6 definitions; Remove mld_input() since MLD piggybacks on ICMPv6 input. Add functions to catch MLD messages dispatched by ICMPv6 input logic. net/mld: As a starting point, copy all net/igmp/*.c files to net/mld/. and change all occurrences of igmp (or IGMP) to mld (or MLD).
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*
****************************************************************************/
/****************************************************************************
* Included Files
****************************************************************************/
#include <nuttx/config.h>
#include <assert.h>
#include <debug.h>
#include <nuttx/net/netconfig.h>
#include <nuttx/net/netdev.h>
#include <nuttx/net/ip.h>
#include <nuttx/net/mld.h>
#include "devif/devif.h"
#include "mld/mld.h"
#ifdef CONFIG_NET_MLD
/****************************************************************************
* Private Functions
****************************************************************************/
/****************************************************************************
* Name: mld_mcastmac
*
* Description:
* Given an IP address (in network order), create a MLD multicast MAC
* address.
*
****************************************************************************/
static void mld_mcastmac(FAR const net_ipv6addr_t ipaddr, FAR uint8_t *mac)
{
FAR uint8_t *ipaddr8 = (FAR uint8_t *)ipaddr;
mldinfo("Mcast IP: %04x:%04x:%04x:%04x:%04x:%04x:%04x:%04x\n",
ipaddr[0], ipaddr[1], ipaddr[2], ipaddr[3],
ipaddr[4], ipaddr[5], ipaddr[6], ipaddr[7]);
Squashed commit of the following: net/mld: The MLD logic now compiles and is much less toxic. It still is not a proper MLD implementation: (1) It is basically a port of IGMP, tweaked to work with IPv6 and ICMPv6 MLD messages, (2) it needs a proper analysis and comparison with RFC 3810, and (3) it is completely untested. For this reason, it will remain EXPERIMENTAL for some time. net/mld: Add some missing macros, more fixes related to IPv6 vs IPv4 types, net/mld: More compilation cleaning. Most fixups for IPv6 vs IPv4 types. net/mld: Hook crudely converted .c files into build system and resolve a few of the many, many compilation/design problems. net/mld: Add support for MLD statistics. net/mld: Hook in MLD poll and packet transmission logic. net/mld: Change references to IPv4 definitions to IPv6 definitions; Remove mld_input() since MLD piggybacks on ICMPv6 input. Add functions to catch MLD messages dispatched by ICMPv6 input logic. net/mld: As a starting point, copy all net/igmp/*.c files to net/mld/. and change all occurrences of igmp (or IGMP) to mld (or MLD). net/mld: More compilation cleaning. Most fixups for IPv6 vs IPv4 types. net/mld: Hook crudely converted .c files into build system and resolve a few of the many, many compilation/design problems. net/mld: Add support for MLD statistics. net/mld: Hook in MLD poll and packet transmission logic. net/mld: Change references to IPv4 definitions to IPv6 definitions; Remove mld_input() since MLD piggybacks on ICMPv6 input. Add functions to catch MLD messages dispatched by ICMPv6 input logic. net/mld: As a starting point, copy all net/igmp/*.c files to net/mld/. and change all occurrences of igmp (or IGMP) to mld (or MLD).
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/* For the MAC address by insert the low 32 Bits of the multicast IPv6
* Address into the Ethernet Address . This mapping is from the IETF
* RFC 7042.
*/
mac[0] = 0x33;
mac[1] = 0x33;
mac[2] = ipaddr8[12]; /* Bits: 96-103 */
mac[3] = ipaddr8[13]; /* Bits: 104-111 */
mac[4] = ipaddr8[14]; /* Bits: 112-119 */
mac[5] = ipaddr8[15]; /* Bits: 120-127 */
Squashed commit of the following: net/mld: The MLD logic now compiles and is much less toxic. It still is not a proper MLD implementation: (1) It is basically a port of IGMP, tweaked to work with IPv6 and ICMPv6 MLD messages, (2) it needs a proper analysis and comparison with RFC 3810, and (3) it is completely untested. For this reason, it will remain EXPERIMENTAL for some time. net/mld: Add some missing macros, more fixes related to IPv6 vs IPv4 types, net/mld: More compilation cleaning. Most fixups for IPv6 vs IPv4 types. net/mld: Hook crudely converted .c files into build system and resolve a few of the many, many compilation/design problems. net/mld: Add support for MLD statistics. net/mld: Hook in MLD poll and packet transmission logic. net/mld: Change references to IPv4 definitions to IPv6 definitions; Remove mld_input() since MLD piggybacks on ICMPv6 input. Add functions to catch MLD messages dispatched by ICMPv6 input logic. net/mld: As a starting point, copy all net/igmp/*.c files to net/mld/. and change all occurrences of igmp (or IGMP) to mld (or MLD). net/mld: More compilation cleaning. Most fixups for IPv6 vs IPv4 types. net/mld: Hook crudely converted .c files into build system and resolve a few of the many, many compilation/design problems. net/mld: Add support for MLD statistics. net/mld: Hook in MLD poll and packet transmission logic. net/mld: Change references to IPv4 definitions to IPv6 definitions; Remove mld_input() since MLD piggybacks on ICMPv6 input. Add functions to catch MLD messages dispatched by ICMPv6 input logic. net/mld: As a starting point, copy all net/igmp/*.c files to net/mld/. and change all occurrences of igmp (or IGMP) to mld (or MLD).
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mldinfo("Mcast MAC: %02x:%02x:%02x:%02x:%02x:%02x\n",
mac[0], mac[1], mac[2], mac[3], mac[4], mac[5]);
Squashed commit of the following: net/mld: The MLD logic now compiles and is much less toxic. It still is not a proper MLD implementation: (1) It is basically a port of IGMP, tweaked to work with IPv6 and ICMPv6 MLD messages, (2) it needs a proper analysis and comparison with RFC 3810, and (3) it is completely untested. For this reason, it will remain EXPERIMENTAL for some time. net/mld: Add some missing macros, more fixes related to IPv6 vs IPv4 types, net/mld: More compilation cleaning. Most fixups for IPv6 vs IPv4 types. net/mld: Hook crudely converted .c files into build system and resolve a few of the many, many compilation/design problems. net/mld: Add support for MLD statistics. net/mld: Hook in MLD poll and packet transmission logic. net/mld: Change references to IPv4 definitions to IPv6 definitions; Remove mld_input() since MLD piggybacks on ICMPv6 input. Add functions to catch MLD messages dispatched by ICMPv6 input logic. net/mld: As a starting point, copy all net/igmp/*.c files to net/mld/. and change all occurrences of igmp (or IGMP) to mld (or MLD). net/mld: More compilation cleaning. Most fixups for IPv6 vs IPv4 types. net/mld: Hook crudely converted .c files into build system and resolve a few of the many, many compilation/design problems. net/mld: Add support for MLD statistics. net/mld: Hook in MLD poll and packet transmission logic. net/mld: Change references to IPv4 definitions to IPv6 definitions; Remove mld_input() since MLD piggybacks on ICMPv6 input. Add functions to catch MLD messages dispatched by ICMPv6 input logic. net/mld: As a starting point, copy all net/igmp/*.c files to net/mld/. and change all occurrences of igmp (or IGMP) to mld (or MLD).
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}
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: mld_addmcastmac
*
* Description:
* Add an MLD MAC address to the device's MAC filter table.
*
****************************************************************************/
void mld_addmcastmac(FAR struct net_driver_s *dev,
FAR const net_ipv6addr_t ipaddr)
{
uint8_t mcastmac[6];
mldinfo("Adding MAC address filter\n");
Squashed commit of the following: net/mld: The MLD logic now compiles and is much less toxic. It still is not a proper MLD implementation: (1) It is basically a port of IGMP, tweaked to work with IPv6 and ICMPv6 MLD messages, (2) it needs a proper analysis and comparison with RFC 3810, and (3) it is completely untested. For this reason, it will remain EXPERIMENTAL for some time. net/mld: Add some missing macros, more fixes related to IPv6 vs IPv4 types, net/mld: More compilation cleaning. Most fixups for IPv6 vs IPv4 types. net/mld: Hook crudely converted .c files into build system and resolve a few of the many, many compilation/design problems. net/mld: Add support for MLD statistics. net/mld: Hook in MLD poll and packet transmission logic. net/mld: Change references to IPv4 definitions to IPv6 definitions; Remove mld_input() since MLD piggybacks on ICMPv6 input. Add functions to catch MLD messages dispatched by ICMPv6 input logic. net/mld: As a starting point, copy all net/igmp/*.c files to net/mld/. and change all occurrences of igmp (or IGMP) to mld (or MLD). net/mld: More compilation cleaning. Most fixups for IPv6 vs IPv4 types. net/mld: Hook crudely converted .c files into build system and resolve a few of the many, many compilation/design problems. net/mld: Add support for MLD statistics. net/mld: Hook in MLD poll and packet transmission logic. net/mld: Change references to IPv4 definitions to IPv6 definitions; Remove mld_input() since MLD piggybacks on ICMPv6 input. Add functions to catch MLD messages dispatched by ICMPv6 input logic. net/mld: As a starting point, copy all net/igmp/*.c files to net/mld/. and change all occurrences of igmp (or IGMP) to mld (or MLD).
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if (dev->d_addmac != NULL)
{
mld_mcastmac(ipaddr, mcastmac);
dev->d_addmac(dev, mcastmac);
}
}
/****************************************************************************
* Name: mld_removemcastmac
*
* Description:
* Remove an MLD MAC address from the device's MAC filter table.
*
****************************************************************************/
void mld_removemcastmac(FAR struct net_driver_s *dev,
FAR const net_ipv6addr_t ipaddr)
{
uint8_t mcastmac[6];
mldinfo("Removing MAC address filter\n");
Squashed commit of the following: net/mld: The MLD logic now compiles and is much less toxic. It still is not a proper MLD implementation: (1) It is basically a port of IGMP, tweaked to work with IPv6 and ICMPv6 MLD messages, (2) it needs a proper analysis and comparison with RFC 3810, and (3) it is completely untested. For this reason, it will remain EXPERIMENTAL for some time. net/mld: Add some missing macros, more fixes related to IPv6 vs IPv4 types, net/mld: More compilation cleaning. Most fixups for IPv6 vs IPv4 types. net/mld: Hook crudely converted .c files into build system and resolve a few of the many, many compilation/design problems. net/mld: Add support for MLD statistics. net/mld: Hook in MLD poll and packet transmission logic. net/mld: Change references to IPv4 definitions to IPv6 definitions; Remove mld_input() since MLD piggybacks on ICMPv6 input. Add functions to catch MLD messages dispatched by ICMPv6 input logic. net/mld: As a starting point, copy all net/igmp/*.c files to net/mld/. and change all occurrences of igmp (or IGMP) to mld (or MLD). net/mld: More compilation cleaning. Most fixups for IPv6 vs IPv4 types. net/mld: Hook crudely converted .c files into build system and resolve a few of the many, many compilation/design problems. net/mld: Add support for MLD statistics. net/mld: Hook in MLD poll and packet transmission logic. net/mld: Change references to IPv4 definitions to IPv6 definitions; Remove mld_input() since MLD piggybacks on ICMPv6 input. Add functions to catch MLD messages dispatched by ICMPv6 input logic. net/mld: As a starting point, copy all net/igmp/*.c files to net/mld/. and change all occurrences of igmp (or IGMP) to mld (or MLD).
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if (dev->d_rmmac != NULL)
{
mld_mcastmac(ipaddr, mcastmac);
dev->d_rmmac(dev, mcastmac);
}
}
#endif /* CONFIG_NET_MLD */