forked from Qortal/Brooklyn
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
98 lines
3.6 KiB
98 lines
3.6 KiB
/* |
|
* net/tipc/eth_media.c: Ethernet bearer support for TIPC |
|
* |
|
* Copyright (c) 2001-2007, 2013-2014, Ericsson AB |
|
* Copyright (c) 2005-2008, 2011-2013, Wind River Systems |
|
* All rights reserved. |
|
* |
|
* Redistribution and use in source and binary forms, with or without |
|
* modification, are permitted provided that the following conditions are met: |
|
* |
|
* 1. Redistributions of source code must retain the above copyright |
|
* notice, this list of conditions and the following disclaimer. |
|
* 2. Redistributions in binary form must reproduce the above copyright |
|
* notice, this list of conditions and the following disclaimer in the |
|
* documentation and/or other materials provided with the distribution. |
|
* 3. Neither the names of the copyright holders nor the names of its |
|
* contributors may be used to endorse or promote products derived from |
|
* this software without specific prior written permission. |
|
* |
|
* Alternatively, this software may be distributed under the terms of the |
|
* GNU General Public License ("GPL") version 2 as published by the Free |
|
* Software Foundation. |
|
* |
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
|
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
|
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
|
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE |
|
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
|
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
|
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
|
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
|
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
|
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
|
* POSSIBILITY OF SUCH DAMAGE. |
|
*/ |
|
|
|
#include "core.h" |
|
#include "bearer.h" |
|
|
|
/* Convert Ethernet address (media address format) to string */ |
|
static int tipc_eth_addr2str(struct tipc_media_addr *addr, |
|
char *strbuf, int bufsz) |
|
{ |
|
if (bufsz < 18) /* 18 = strlen("aa:bb:cc:dd:ee:ff\0") */ |
|
return 1; |
|
|
|
sprintf(strbuf, "%pM", addr->value); |
|
return 0; |
|
} |
|
|
|
/* Convert from media address format to discovery message addr format */ |
|
static int tipc_eth_addr2msg(char *msg, struct tipc_media_addr *addr) |
|
{ |
|
memset(msg, 0, TIPC_MEDIA_INFO_SIZE); |
|
msg[TIPC_MEDIA_TYPE_OFFSET] = TIPC_MEDIA_TYPE_ETH; |
|
memcpy(msg + TIPC_MEDIA_ADDR_OFFSET, addr->value, ETH_ALEN); |
|
return 0; |
|
} |
|
|
|
/* Convert raw mac address format to media addr format */ |
|
static int tipc_eth_raw2addr(struct tipc_bearer *b, |
|
struct tipc_media_addr *addr, |
|
char *msg) |
|
{ |
|
memset(addr, 0, sizeof(*addr)); |
|
ether_addr_copy(addr->value, msg); |
|
addr->media_id = TIPC_MEDIA_TYPE_ETH; |
|
addr->broadcast = is_broadcast_ether_addr(addr->value); |
|
return 0; |
|
} |
|
|
|
/* Convert discovery msg addr format to Ethernet media addr format */ |
|
static int tipc_eth_msg2addr(struct tipc_bearer *b, |
|
struct tipc_media_addr *addr, |
|
char *msg) |
|
{ |
|
/* Skip past preamble: */ |
|
msg += TIPC_MEDIA_ADDR_OFFSET; |
|
return tipc_eth_raw2addr(b, addr, msg); |
|
} |
|
|
|
/* Ethernet media registration info */ |
|
struct tipc_media eth_media_info = { |
|
.send_msg = tipc_l2_send_msg, |
|
.enable_media = tipc_enable_l2_media, |
|
.disable_media = tipc_disable_l2_media, |
|
.addr2str = tipc_eth_addr2str, |
|
.addr2msg = tipc_eth_addr2msg, |
|
.msg2addr = tipc_eth_msg2addr, |
|
.raw2addr = tipc_eth_raw2addr, |
|
.priority = TIPC_DEF_LINK_PRI, |
|
.tolerance = TIPC_DEF_LINK_TOL, |
|
.min_win = TIPC_DEF_LINK_WIN, |
|
.max_win = TIPC_MAX_LINK_WIN, |
|
.type_id = TIPC_MEDIA_TYPE_ETH, |
|
.hwaddr_len = ETH_ALEN, |
|
.name = "eth" |
|
};
|
|
|