BadVPN – Blame information for rev 1
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| Rev | Author | Line No. | Line |
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| 1 | office | 1 | /** |
| 2 | * @file |
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| 3 | * lwIP netif implementing an IEEE 802.1D MAC Bridge |
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| 4 | */ |
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| 5 | |||
| 6 | /* |
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| 7 | * Copyright (c) 2017 Simon Goldschmidt. |
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| 8 | * All rights reserved. |
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| 9 | * |
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| 10 | * Redistribution and use in source and binary forms, with or without modification, |
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| 11 | * are permitted provided that the following conditions are met: |
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| 12 | * |
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| 13 | * 1. Redistributions of source code must retain the above copyright notice, |
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| 14 | * this list of conditions and the following disclaimer. |
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| 15 | * 2. Redistributions in binary form must reproduce the above copyright notice, |
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| 16 | * this list of conditions and the following disclaimer in the documentation |
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| 17 | * and/or other materials provided with the distribution. |
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| 18 | * 3. The name of the author may not be used to endorse or promote products |
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| 19 | * derived from this software without specific prior written permission. |
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| 20 | * |
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| 21 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED |
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| 22 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF |
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| 23 | * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT |
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| 24 | * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
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| 25 | * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT |
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| 26 | * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
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| 27 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
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| 28 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING |
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| 29 | * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY |
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| 30 | * OF SUCH DAMAGE. |
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| 31 | * |
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| 32 | * This file is part of the lwIP TCP/IP stack. |
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| 33 | * |
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| 34 | * Author: Simon Goldschmidt <goldsimon@gmx.de> |
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| 35 | * |
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| 36 | */ |
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| 37 | #ifndef LWIP_HDR_NETIF_BRIDGEIF_H |
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| 38 | #define LWIP_HDR_NETIF_BRIDGEIF_H |
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| 39 | |||
| 40 | #include "netif/bridgeif_opts.h" |
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| 41 | |||
| 42 | #include "lwip/err.h" |
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| 43 | #include "lwip/prot/ethernet.h" |
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| 44 | |||
| 45 | struct netif; |
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| 46 | |||
| 47 | #if (BRIDGEIF_MAX_PORTS < 0) || (BRIDGEIF_MAX_PORTS >= 64) |
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| 48 | #error BRIDGEIF_MAX_PORTS must be [1..63] |
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| 49 | #elif BRIDGEIF_MAX_PORTS < 8 |
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| 50 | typedef u8_t bridgeif_portmask_t; |
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| 51 | #elif BRIDGEIF_MAX_PORTS < 16 |
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| 52 | typedef u16_t bridgeif_portmask_t; |
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| 53 | #elif BRIDGEIF_MAX_PORTS < 32 |
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| 54 | typedef u32_t bridgeif_portmask_t; |
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| 55 | #elif BRIDGEIF_MAX_PORTS < 64 |
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| 56 | typedef u64_t bridgeif_portmask_t; |
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| 57 | #endif |
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| 58 | |||
| 59 | #define BR_FLOOD ((bridgeif_portmask_t)-1) |
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| 60 | |||
| 61 | /** @ingroup bridgeif |
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| 62 | * Initialisation data for @ref bridgeif_init. |
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| 63 | * An instance of this type must be passed as parameter 'state' to @ref netif_add |
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| 64 | * when the bridge is added. |
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| 65 | */ |
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| 66 | typedef struct bridgeif_initdata_s { |
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| 67 | /** MAC address of the bridge (cannot use the netif's addresses) */ |
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| 68 | struct eth_addr ethaddr; |
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| 69 | /** Maximum number of ports in the bridge (ports are stored in an array, this |
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| 70 | influences memory allocated for netif->state of the bridge netif). */ |
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| 71 | u8_t max_ports; |
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| 72 | /** Maximum number of dynamic/learning entries in the bridge's forwarding database. |
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| 73 | In the default implementation, this controls memory consumption only. */ |
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| 74 | u16_t max_fdb_dynamic_entries; |
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| 75 | /** Maximum number of static forwarding entries. Influences memory consumption! */ |
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| 76 | u16_t max_fdb_static_entries; |
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| 77 | } bridgeif_initdata_t; |
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| 78 | |||
| 79 | /** @ingroup bridgeif |
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| 80 | * Use this for constant initialization of a bridgeif_initdat_t |
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| 81 | * (ethaddr must be passed as ETH_ADDR()) |
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| 82 | */ |
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| 83 | #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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| 84 | /** @ingroup bridgeif |
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| 85 | * Use this for constant initialization of a bridgeif_initdat_t |
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| 86 | * (each byte of ethaddr must be passed) |
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| 87 | */ |
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| 88 | #define BRIDGEIF_INITDATA2(max_ports, max_fdb_dynamic_entries, max_fdb_static_entries, e0, e1, e2, e3, e4, e5) {{e0, e1, e2, e3, e4, e5}, max_ports, max_fdb_dynamic_entries, max_fdb_static_entries} |
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| 89 | |||
| 90 | err_t bridgeif_init(struct netif *netif); |
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| 91 | err_t bridgeif_add_port(struct netif *bridgeif, struct netif *portif); |
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| 92 | err_t bridgeif_fdb_add(struct netif *bridgeif, const struct eth_addr *addr, bridgeif_portmask_t ports); |
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| 93 | err_t bridgeif_fdb_remove(struct netif *bridgeif, const struct eth_addr *addr); |
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| 94 | |||
| 95 | #endif /* LWIP_HDR_NETIF_BRIDGEIF_H */ |