--- /dev/null
+/*
+ * 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)
+{
+ char bcast_mac[ETH_ALEN] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
+
+ memset(addr, 0, sizeof(*addr));
+ ether_addr_copy(addr->value, msg);
+ addr->media_id = TIPC_MEDIA_TYPE_ETH;
+ addr->broadcast = !memcmp(addr->value, bcast_mac, ETH_ALEN);
+ 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,
+ .window = TIPC_DEF_LINK_WIN,
+ .type_id = TIPC_MEDIA_TYPE_ETH,
+ .hwaddr_len = ETH_ALEN,
+ .name = "eth"
+};
Code Review / kvmfornfv.git / blobdiff