[mclag]:add mclagsyncd (sonic-net#811)

* add mclag support(sonic-net#2514)

Signed-off-by: shine.chen <shine.chen@nephosinc.com>

* Fix show acl table can't display mclag acl rules

Signed-off-by: shine.chen <shine.chen@nephosinc.com>

* refine mclagsyncd code

Signed-off-by: shine.chen <shine.chen@nephosinc.com>

* change APP_ACL_TABLE_NAME to APP_ACL_TABLE_TABLE_NAME

Signed-off-by: shine.chen <shine.chen@nephosinc.com>

* optimize acl rule operation

Signed-off-by: shine.chen <shine.chen@nephosinc.com>

* refine function name using camelcased

Signed-off-by: shine.chen <shine.chen@mediatek.com>

* refine readData function per selectable base-class change

Signed-off-by: shine.chen <shine.chen@mediatek.com>

* refine sys log

Signed-off-by: shine.chen <shine.chen@mediatek.com>

* remove binary file

Signed-off-by: shine.chen <shine.chen@mediatek.com>

* set traffic isolation using ACL_TABLE_MCLAG

Signed-off-by: shine.chen <shine.chen@mediatek.com>

Co-authored-by: shine.chen <shine.chen@nephosinc.com>
Co-authored-by: shine.chen <shine.chen@mediatek.com>

Makefile.am

@@ -1,4 +1,5 @@
-SUBDIRS = fpmsyncd neighsyncd portsyncd natsyncd orchagent swssconfig cfgmgr tests
+
+SUBDIRS = fpmsyncd neighsyncd portsyncd mclagsyncd natsyncd orchagent swssconfig cfgmgr tests
 
 if HAVE_LIBTEAM
 SUBDIRS += teamsyncd

configure.ac

@@ -82,6 +82,7 @@ AC_CONFIG_FILES([
     natsyncd/Makefile
     portsyncd/Makefile
     teamsyncd/Makefile
+    mclagsyncd/Makefile
     swssconfig/Makefile
     cfgmgr/Makefile
     tests/Makefile

mclagsyncd/Makefile.am

@@ -0,0 +1,15 @@
+INCLUDES = -I $(top_srcdir)
+
+bin_PROGRAMS = mclagsyncd
+
+if DEBUG
+DBGFLAGS = -ggdb -DDEBUG
+else
+DBGFLAGS = -g
+endif
+
+mclagsyncd_SOURCES = mclagsyncd.cpp mclaglink.cpp
+
+mclagsyncd_CFLAGS = $(DBGFLAGS) $(AM_CFLAGS) $(CFLAGS_COMMON)
+mclagsyncd_CPPFLAGS = $(DBGFLAGS) $(AM_CFLAGS) $(CFLAGS_COMMON)
+mclagsyncd_LDADD = -lnl-3 -lnl-route-3 -lswsscommon 

mclagsyncd/mclag.h

@@ -0,0 +1,164 @@
+/* Copyright(c) 2016-2019 Nephos.
+*
+* This program is free software; you can redistribute it and/or modify it
+* under the terms and conditions of the GNU General Public License,
+* version 2, as published by the Free Software Foundation.
+*
+* This program is distributed in the hope it will be useful, but WITHOUT
+* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+* FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
+* more details.
+*
+* You should have received a copy of the GNU General Public License along with
+* this program; if not, see <http://www.gnu.org/licenses/>.
+*
+* The full GNU General Public License is included in this distribution in
+* the file called "COPYING".
+*
+*  Maintainer: Jim Jiang from nephos
+*/
+
+#ifndef _MCLAG_H
+#define _MCLAG_H
+#define MCLAG_DEFAULT_IP   0x7f000006
+
+enum MCLAG_FDB_OP_TYPE {
+    MCLAG_FDB_OPER_ADD =1,
+    MCLAG_FDB_OPER_DEL = 2,
+};
+
+enum MCLAG_FDB_TYPE {
+    MCLAG_FDB_TYPE_STATIC = 1,
+    MCLAG_FDB_TYPE_DYNAMIC = 2,
+};
+
+/*
+ * default port for mclag connections
+ */
+#define MCLAG_DEFAULT_PORT 2626
+
+/*
+ * Largest message that can be sent to or received from the MCLAG.
+ */
+#define MCLAG_MAX_MSG_LEN 4096
+#define MCLAG_MAX_SEND_MSG_LEN 4096
+
+typedef struct mclag_msg_hdr_t_ {
+    /*
+     * Protocol version.
+     */
+    uint8_t version;
+
+    /*
+     * Type of message, see below.
+     */
+    uint8_t msg_type;
+
+    /*
+     * Length of entire message, including the header.
+     */
+    uint16_t msg_len;
+}mclag_msg_hdr_t;
+
+#define MCLAG_PROTO_VERSION 1
+#define MCLAG_MSG_HDR_LEN (sizeof (mclag_msg_hdr_t))
+
+/*syncd send msg type to iccpd*/
+typedef enum mclag_syncd_msg_type_e_ {
+    MCLAG_SYNCD_MSG_TYPE_NONE = 0,
+    MCLAG_SYNCD_MSG_TYPE_FDB_OPERATION = 1
+}mclag_syncd_msg_type_e;
+
+/*iccpd send msg type to syncd*/
+typedef enum mclag_msg_type_e_ {
+    MCLAG_MSG_TYPE_NONE = 0,
+    MCLAG_MSG_TYPE_PORT_ISOLATE = 1,
+    MCLAG_MSG_TYPE_PORT_MAC_LEARN_MODE = 2,
+    MCLAG_MSG_TYPE_FLUSH_FDB = 3,
+    MCLAG_MSG_TYPE_SET_INTF_MAC = 4,
+    MCLAG_MSG_TYPE_SET_FDB = 5,
+    MCLAG_MSG_TYPE_FLUSH_FDB_BY_PORT = 6,
+    MCLAG_MSG_TYPE_GET_FDB_CHANGES = 20
+}mclag_msg_type_e;
+
+typedef struct mclag_sub_option_hdr_t_ {    
+    uint8_t op_type;
+
+    /*
+     * Length of option value, not including the header.
+     */
+    uint16_t op_len;
+}mclag_sub_option_hdr_t;
+
+#define MCLAG_SUB_OPTION_HDR_LEN (sizeof (mclag_sub_option_hdr_t))
+
+typedef enum mclag_sub_option_type_e_ {
+    MCLAG_SUB_OPTION_TYPE_NONE = 0,
+    MCLAG_SUB_OPTION_TYPE_ISOLATE_SRC = 1,
+    MCLAG_SUB_OPTION_TYPE_ISOLATE_DST = 2,
+    MCLAG_SUB_OPTION_TYPE_MAC_LEARN_ENABLE = 3,
+    MCLAG_SUB_OPTION_TYPE_MAC_LEARN_DISABLE = 4,
+    MCLAG_SUB_OPTION_TYPE_SET_MAC_SRC = 5,
+    MCLAG_SUB_OPTION_TYPE_SET_MAC_DST = 6
+} mclag_sub_option_type_e;
+
+static inline size_t
+mclag_msg_len (const mclag_msg_hdr_t *hdr)
+{
+    return hdr->msg_len;
+}
+
+/*
+ * mclag_msg_data_len
+ */
+static inline size_t
+mclag_msg_data_len (const mclag_msg_hdr_t *hdr)
+{
+  return (mclag_msg_len (hdr) - MCLAG_MSG_HDR_LEN);
+}
+
+/*
+ * mclag_msg_hdr_ok
+ *
+ * Returns TRUE if a message header looks well-formed.
+ */
+static inline int
+mclag_msg_hdr_ok (const mclag_msg_hdr_t *hdr)
+{
+  size_t msg_len;
+
+  if (hdr->msg_type == MCLAG_MSG_TYPE_NONE)
+    return 0;
+
+  msg_len = mclag_msg_len (hdr);
+
+  if (msg_len < MCLAG_MSG_HDR_LEN || msg_len > MCLAG_MAX_MSG_LEN)
+    return 0;
+
+  return 1;
+}
+
+/*
+ * mclag_msg_ok
+ *
+ * Returns TRUE if a message looks well-formed.
+ *
+ * @param len The length in bytes from 'hdr' to the end of the buffer.
+ */
+static inline int
+mclag_msg_ok (const mclag_msg_hdr_t *hdr, size_t len)
+{
+  if (len < MCLAG_MSG_HDR_LEN)
+    return 0;
+
+  if (!mclag_msg_hdr_ok (hdr))
+    return 0;
+
+  if (mclag_msg_len (hdr) > len)
+    return 0;
+
+  return 1;
+}
+
+
+#endif