1b97bf3fd8f6a16966d4f18983b2c40993ff937d4Per Liden/* 2b97bf3fd8f6a16966d4f18983b2c40993ff937d4Per Liden * net/tipc/eth_media.c: Ethernet bearer support for TIPC 3c43072852649d8382b81237ce51195bcec36f24aYOSHIFUJI Hideaki * 438504c28a201a80d12a6a0f821fecb331cb1f223Jon Paul Maloy * Copyright (c) 2001-2007, 2013-2014, Ericsson AB 54babbaa8a1ecf1cb76de5e1635417c7472190ef5Ying Xue * Copyright (c) 2005-2008, 2011-2013, Wind River Systems 6b97bf3fd8f6a16966d4f18983b2c40993ff937d4Per Liden * All rights reserved. 7b97bf3fd8f6a16966d4f18983b2c40993ff937d4Per Liden * 89ea1fd3c1a15c620d1e3d0aa269d34b705477003Per Liden * Redistribution and use in source and binary forms, with or without 9b97bf3fd8f6a16966d4f18983b2c40993ff937d4Per Liden * modification, are permitted provided that the following conditions are met: 10b97bf3fd8f6a16966d4f18983b2c40993ff937d4Per Liden * 119ea1fd3c1a15c620d1e3d0aa269d34b705477003Per Liden * 1. Redistributions of source code must retain the above copyright 129ea1fd3c1a15c620d1e3d0aa269d34b705477003Per Liden * notice, this list of conditions and the following disclaimer. 139ea1fd3c1a15c620d1e3d0aa269d34b705477003Per Liden * 2. Redistributions in binary form must reproduce the above copyright 149ea1fd3c1a15c620d1e3d0aa269d34b705477003Per Liden * notice, this list of conditions and the following disclaimer in the 159ea1fd3c1a15c620d1e3d0aa269d34b705477003Per Liden * documentation and/or other materials provided with the distribution. 169ea1fd3c1a15c620d1e3d0aa269d34b705477003Per Liden * 3. Neither the names of the copyright holders nor the names of its 179ea1fd3c1a15c620d1e3d0aa269d34b705477003Per Liden * contributors may be used to endorse or promote products derived from 189ea1fd3c1a15c620d1e3d0aa269d34b705477003Per Liden * this software without specific prior written permission. 19b97bf3fd8f6a16966d4f18983b2c40993ff937d4Per Liden * 209ea1fd3c1a15c620d1e3d0aa269d34b705477003Per Liden * Alternatively, this software may be distributed under the terms of the 219ea1fd3c1a15c620d1e3d0aa269d34b705477003Per Liden * GNU General Public License ("GPL") version 2 as published by the Free 229ea1fd3c1a15c620d1e3d0aa269d34b705477003Per Liden * Software Foundation. 239ea1fd3c1a15c620d1e3d0aa269d34b705477003Per Liden * 249ea1fd3c1a15c620d1e3d0aa269d34b705477003Per Liden * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 259ea1fd3c1a15c620d1e3d0aa269d34b705477003Per Liden * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 269ea1fd3c1a15c620d1e3d0aa269d34b705477003Per Liden * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 279ea1fd3c1a15c620d1e3d0aa269d34b705477003Per Liden * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 289ea1fd3c1a15c620d1e3d0aa269d34b705477003Per Liden * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 299ea1fd3c1a15c620d1e3d0aa269d34b705477003Per Liden * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 309ea1fd3c1a15c620d1e3d0aa269d34b705477003Per Liden * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 319ea1fd3c1a15c620d1e3d0aa269d34b705477003Per Liden * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 329ea1fd3c1a15c620d1e3d0aa269d34b705477003Per Liden * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 339ea1fd3c1a15c620d1e3d0aa269d34b705477003Per Liden * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 34b97bf3fd8f6a16966d4f18983b2c40993ff937d4Per Liden * POSSIBILITY OF SUCH DAMAGE. 35b97bf3fd8f6a16966d4f18983b2c40993ff937d4Per Liden */ 36b97bf3fd8f6a16966d4f18983b2c40993ff937d4Per Liden 37d265fef6ddf9042195aae551e1fde211c2a1588bAllan Stephens#include "core.h" 38d265fef6ddf9042195aae551e1fde211c2a1588bAllan Stephens#include "bearer.h" 39d265fef6ddf9042195aae551e1fde211c2a1588bAllan Stephens 4038504c28a201a80d12a6a0f821fecb331cb1f223Jon Paul Maloy#define ETH_ADDR_OFFSET 4 /* MAC addr position inside address field */ 414d163a326fa4868cce1bb75dd95855d40e5497c6Allan Stephens 4238504c28a201a80d12a6a0f821fecb331cb1f223Jon Paul Maloy/* Convert Ethernet address (media address format) to string */ 4338504c28a201a80d12a6a0f821fecb331cb1f223Jon Paul Maloystatic int tipc_eth_addr2str(struct tipc_media_addr *addr, 4438504c28a201a80d12a6a0f821fecb331cb1f223Jon Paul Maloy char *strbuf, int bufsz) 45c43072852649d8382b81237ce51195bcec36f24aYOSHIFUJI Hideaki{ 4638504c28a201a80d12a6a0f821fecb331cb1f223Jon Paul Maloy if (bufsz < 18) /* 18 = strlen("aa:bb:cc:dd:ee:ff\0") */ 47c61b666e260d5cc2e0203b21c689321e6ab0d676Allan Stephens return 1; 48c61b666e260d5cc2e0203b21c689321e6ab0d676Allan Stephens 4938504c28a201a80d12a6a0f821fecb331cb1f223Jon Paul Maloy sprintf(strbuf, "%pM", addr->value); 50c61b666e260d5cc2e0203b21c689321e6ab0d676Allan Stephens return 0; 51b97bf3fd8f6a16966d4f18983b2c40993ff937d4Per Liden} 52b97bf3fd8f6a16966d4f18983b2c40993ff937d4Per Liden 5338504c28a201a80d12a6a0f821fecb331cb1f223Jon Paul Maloy/* Convert from media address format to discovery message addr format */ 5438504c28a201a80d12a6a0f821fecb331cb1f223Jon Paul Maloystatic int tipc_eth_addr2msg(char *msg, struct tipc_media_addr *addr) 554d163a326fa4868cce1bb75dd95855d40e5497c6Allan Stephens{ 5638504c28a201a80d12a6a0f821fecb331cb1f223Jon Paul Maloy memset(msg, 0, TIPC_MEDIA_ADDR_SIZE); 5738504c28a201a80d12a6a0f821fecb331cb1f223Jon Paul Maloy msg[TIPC_MEDIA_TYPE_OFFSET] = TIPC_MEDIA_TYPE_ETH; 5838504c28a201a80d12a6a0f821fecb331cb1f223Jon Paul Maloy memcpy(msg + ETH_ADDR_OFFSET, addr->value, ETH_ALEN); 594d163a326fa4868cce1bb75dd95855d40e5497c6Allan Stephens return 0; 604d163a326fa4868cce1bb75dd95855d40e5497c6Allan Stephens} 614d163a326fa4868cce1bb75dd95855d40e5497c6Allan Stephens 6238504c28a201a80d12a6a0f821fecb331cb1f223Jon Paul Maloy/* Convert raw mac address format to media addr format */ 6338504c28a201a80d12a6a0f821fecb331cb1f223Jon Paul Maloystatic int tipc_eth_raw2addr(struct tipc_bearer *b, 6438504c28a201a80d12a6a0f821fecb331cb1f223Jon Paul Maloy struct tipc_media_addr *addr, 6538504c28a201a80d12a6a0f821fecb331cb1f223Jon Paul Maloy char *msg) 664d163a326fa4868cce1bb75dd95855d40e5497c6Allan Stephens{ 6738504c28a201a80d12a6a0f821fecb331cb1f223Jon Paul Maloy char bcast_mac[ETH_ALEN] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff}; 684d163a326fa4868cce1bb75dd95855d40e5497c6Allan Stephens 6938504c28a201a80d12a6a0f821fecb331cb1f223Jon Paul Maloy memset(addr, 0, sizeof(*addr)); 7038504c28a201a80d12a6a0f821fecb331cb1f223Jon Paul Maloy ether_addr_copy(addr->value, msg); 7138504c28a201a80d12a6a0f821fecb331cb1f223Jon Paul Maloy addr->media_id = TIPC_MEDIA_TYPE_ETH; 7238504c28a201a80d12a6a0f821fecb331cb1f223Jon Paul Maloy addr->broadcast = !memcmp(addr->value, bcast_mac, ETH_ALEN); 734d163a326fa4868cce1bb75dd95855d40e5497c6Allan Stephens return 0; 744d163a326fa4868cce1bb75dd95855d40e5497c6Allan Stephens} 754d163a326fa4868cce1bb75dd95855d40e5497c6Allan Stephens 7638504c28a201a80d12a6a0f821fecb331cb1f223Jon Paul Maloy/* Convert discovery msg addr format to Ethernet media addr format */ 7738504c28a201a80d12a6a0f821fecb331cb1f223Jon Paul Maloystatic int tipc_eth_msg2addr(struct tipc_bearer *b, 7838504c28a201a80d12a6a0f821fecb331cb1f223Jon Paul Maloy struct tipc_media_addr *addr, 7938504c28a201a80d12a6a0f821fecb331cb1f223Jon Paul Maloy char *msg) 8038504c28a201a80d12a6a0f821fecb331cb1f223Jon Paul Maloy{ 8138504c28a201a80d12a6a0f821fecb331cb1f223Jon Paul Maloy /* Skip past preamble: */ 8238504c28a201a80d12a6a0f821fecb331cb1f223Jon Paul Maloy msg += ETH_ADDR_OFFSET; 8338504c28a201a80d12a6a0f821fecb331cb1f223Jon Paul Maloy return tipc_eth_raw2addr(b, addr, msg); 8438504c28a201a80d12a6a0f821fecb331cb1f223Jon Paul Maloy} 8538504c28a201a80d12a6a0f821fecb331cb1f223Jon Paul Maloy 86e4d050cbf7720d8bcc781f4ef557d37ed148a5c4Ying Xue/* Ethernet media registration info */ 875702dbab687e19792102200b085108f00ab820c9Jon Paul Maloystruct tipc_media eth_media_info = { 88e4d050cbf7720d8bcc781f4ef557d37ed148a5c4Ying Xue .send_msg = tipc_l2_send_msg, 89e4d050cbf7720d8bcc781f4ef557d37ed148a5c4Ying Xue .enable_media = tipc_enable_l2_media, 90e4d050cbf7720d8bcc781f4ef557d37ed148a5c4Ying Xue .disable_media = tipc_disable_l2_media, 91e4d050cbf7720d8bcc781f4ef557d37ed148a5c4Ying Xue .addr2str = tipc_eth_addr2str, 92e4d050cbf7720d8bcc781f4ef557d37ed148a5c4Ying Xue .addr2msg = tipc_eth_addr2msg, 93e4d050cbf7720d8bcc781f4ef557d37ed148a5c4Ying Xue .msg2addr = tipc_eth_msg2addr, 9438504c28a201a80d12a6a0f821fecb331cb1f223Jon Paul Maloy .raw2addr = tipc_eth_raw2addr, 95706767da1bd0726d8fbc62e4818cb29193676a74Allan Stephens .priority = TIPC_DEF_LINK_PRI, 96706767da1bd0726d8fbc62e4818cb29193676a74Allan Stephens .tolerance = TIPC_DEF_LINK_TOL, 97706767da1bd0726d8fbc62e4818cb29193676a74Allan Stephens .window = TIPC_DEF_LINK_WIN, 98706767da1bd0726d8fbc62e4818cb29193676a74Allan Stephens .type_id = TIPC_MEDIA_TYPE_ETH, 99e4d050cbf7720d8bcc781f4ef557d37ed148a5c4Ying Xue .hwaddr_len = ETH_ALEN, 100706767da1bd0726d8fbc62e4818cb29193676a74Allan Stephens .name = "eth" 101706767da1bd0726d8fbc62e4818cb29193676a74Allan Stephens}; 102