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Added a simple multi-netif 802.1d bridge implementation to show that a multi-port netif works (see task #14369)
This commit is contained in:
goldsimon
81
src/include/netif/bridgeif.h
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81
src/include/netif/bridgeif.h
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/**
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* @file
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* lwIP netif implementing an IEEE 802.1D MAC Bridge
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*/
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/*
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* Copyright (c) 2017 Simon Goldschmidt.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without modification,
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* are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
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* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
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* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
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* OF SUCH DAMAGE.
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*
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* This file is part of the lwIP TCP/IP stack.
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*
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* Author: Simon Goldschmidt <goldsimon@gmx.de>
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*
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*/
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#ifndef LWIP_HDR_NETIF_BRIDGEIF_H
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#define LWIP_HDR_NETIF_BRIDGEIF_H
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#include "netif/bridgeif_opts.h"
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#include "lwip/err.h"
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#include "lwip/prot/ethernet.h"
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struct netif;
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#if (BRIDGEIF_MAX_PORTS < 0) || (BRIDGEIF_MAX_PORTS >= 64)
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#error BRIDGEIF_MAX_PORTS must be [1..63]
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#elif BRIDGEIF_MAX_PORTS < 8
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typedef u8_t bridgeif_portmask_t;
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#elif BRIDGEIF_MAX_PORTS < 16
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typedef u16_t bridgeif_portmask_t;
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#elif BRIDGEIF_MAX_PORTS < 32
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typedef u32_t bridgeif_portmask_t;
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#elif BRIDGEIF_MAX_PORTS < 64
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typedef u64_t bridgeif_portmask_t;
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#endif
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#define BR_FLOOD ((bridgeif_portmask_t)-1)
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typedef struct bridgeif_initdata_s {
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struct eth_addr ethaddr;
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u8_t max_ports;
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u16_t max_fdb_dynamic_entries;
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u16_t max_fdb_static_entries;
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} bridgeif_initdata_t;
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/* Use this for constant initialization of a bridgeif_initdat_t
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(ethaddr must be passed as pointer)*/
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#define BRIDGEIF_INITDATA1(max_ports, max_fdb_dynamic_entries, max_fdb_static_entries, ethaddr) {ethaddr, max_ports, max_fdb_dynamic_entries, max_fdb_static_entries}
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/* Use this for constant initialization of a bridgeif_initdat_t
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(each byte of ethaddr must be passed)*/
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#define BRIDGEIF_INITDATA2(max_ports, max_fdb_dynamic_entries, max_fdb_static_entries, e0, e1, e2, e3, e4, e5) {max_ports, max_fdb_dynamic_entries, max_fdb_static_entries, {{e0, e1, e2, e3, e4, e5}}
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err_t bridgeif_init(struct netif *netif);
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err_t bridgeif_add_port(struct netif *bridgeif, struct netif *portif);
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err_t bridgeif_fdb_add(struct netif *bridgeif, const struct eth_addr *addr, bridgeif_portmask_t ports);
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err_t bridgeif_fdb_remove(struct netif *bridgeif, const struct eth_addr *addr);
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#endif /* LWIP_HDR_NETIF_BRIDGEIF_H */
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85
src/include/netif/bridgeif_opts.h
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85
src/include/netif/bridgeif_opts.h
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@@ -0,0 +1,85 @@
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/**
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* @file
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* lwIP netif implementing an IEEE 802.1D MAC Bridge
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*/
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/*
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* Copyright (c) 2017 Simon Goldschmidt.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without modification,
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* are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
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* SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
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* OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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* IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
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* OF SUCH DAMAGE.
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*
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* This file is part of the lwIP TCP/IP stack.
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*
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* Author: Simon Goldschmidt <goldsimon@gmx.de>
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*
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*/
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#ifndef LWIP_HDR_NETIF_BRIDGEIF_OPTS_H
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#define LWIP_HDR_NETIF_BRIDGEIF_OPTS_H
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#include "lwip/opt.h"
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/** BRIDGEIF_PORT_NETIFS_OUTPUT_DIRECT==1: set port netif's 'input' function
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* to call directly into bridgeif code and on top of that, directly call into
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* the selected forwarding port's 'linkoutput' function.
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* This means that the bridgeif input/output path is protected from concurrent access
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* but as well, the port netif's drivers must correctly handle concurrent access!
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* == 0 (default): get into tcpip_thread for every input packet (no multithreading)
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*/
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#ifndef BRIDGEIF_PORT_NETIFS_OUTPUT_DIRECT
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#define BRIDGEIF_PORT_NETIFS_OUTPUT_DIRECT 0
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#endif
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/** BRIDGEIF_EXTERNAL_FDB==1: use an external implementation for the forwarding
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* database which is possibly faster than our example implementation.
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* (Watch out for concurrent access!)
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*/
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#ifndef BRIDGEIF_EXTERNAL_FDB
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#define BRIDGEIF_EXTERNAL_FDB 0
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#endif
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/** BRIDGEIF_MAX_PORTS: this is used to create a typedef used for forwarding
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* bit-fields: the number of bits required is this + 1 (for the internal/cpu port)
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* (63 is the maximum, resulting in an u64_t for the bit mask)
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*/
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#ifndef BRIDGEIF_MAX_PORTS
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#define BRIDGEIF_MAX_PORTS 7
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#endif
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/** BRIDGEIF_DEBUG: Enable generic debugging in bridgeif.c. */
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#ifndef BRIDGEIF_DEBUG
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#define BRIDGEIF_DEBUG LWIP_DBG_OFF
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#endif
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/** BRIDGEIF_DEBUG: Enable FDB debugging in bridgeif.c. */
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#ifndef BRIDGEIF_FDB_DEBUG
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#define BRIDGEIF_FDB_DEBUG LWIP_DBG_OFF
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#endif
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/** BRIDGEIF_DEBUG: Enable forwarding debugging in bridgeif.c. */
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#ifndef BRIDGEIF_FW_DEBUG
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#define BRIDGEIF_FW_DEBUG LWIP_DBG_OFF
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#endif
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#endif /* LWIP_HDR_NETIF_BRIDGEIF_OPTS_H */
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