[TIPC] Initial merge

TIPC (Transparent Inter Process Communication) is a protocol designed for
intra cluster communication. For more information see
http://tipc.sourceforge.net

Signed-off-by: Per Liden <per.liden@nospam.ericsson.com>

1 files changed, 282 insertions, 0 deletions

diff --git a/net/tipc/core.c b/net/tipc/core.c
new file mode 100644
index 000000000000..17c723f49185
--- /dev/null
+++ b/net/tipc/core.c
@@ -0,0 +1,282 @@
+/*
+ * net/tipc/core.c: TIPC module code
+ *
+ * Copyright (c) 2003-2005, Ericsson Research Canada
+ * Copyright (c) 2005, Wind River Systems
+ * Copyright (c) 2005-2006, Ericsson AB
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without 
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * Redistributions of source code must retain the above copyright notice, this 
+ * list of conditions and the following disclaimer.
+ * 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.
+ * 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.
+ *
+ * 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 <linux/init.h>
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/version.h>
+#include <linux/random.h>
+
+#include "core.h"
+#include "dbg.h"
+#include "ref.h"
+#include "net.h"
+#include "user_reg.h"
+#include "name_table.h"
+#include "subscr.h"
+#include "config.h"
+
+int  eth_media_start(void);
+void eth_media_stop(void);
+int  handler_start(void);
+void handler_stop(void);
+int  socket_init(void);
+void socket_stop(void);
+int  netlink_start(void);
+void netlink_stop(void);
+
+#define MOD_NAME "tipc_start: "
+
+#ifndef CONFIG_TIPC_ZONES
+#define CONFIG_TIPC_ZONES 3
+#endif
+
+#ifndef CONFIG_TIPC_CLUSTERS
+#define CONFIG_TIPC_CLUSTERS 1
+#endif
+
+#ifndef CONFIG_TIPC_NODES
+#define CONFIG_TIPC_NODES 255
+#endif
+
+#ifndef CONFIG_TIPC_SLAVE_NODES
+#define CONFIG_TIPC_SLAVE_NODES 0
+#endif
+
+#ifndef CONFIG_TIPC_PORTS
+#define CONFIG_TIPC_PORTS 8191
+#endif
+
+#ifndef CONFIG_TIPC_LOG
+#define CONFIG_TIPC_LOG 0
+#endif
+
+/* global variables used by multiple sub-systems within TIPC */
+
+int tipc_mode = TIPC_NOT_RUNNING;
+int tipc_random;
+atomic_t tipc_user_count = ATOMIC_INIT(0);
+
+const char tipc_alphabet[] = 
+	"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789_";
+
+/* configurable TIPC parameters */
+
+u32 tipc_own_addr;
+int tipc_max_zones;
+int tipc_max_clusters;
+int tipc_max_nodes;
+int tipc_max_slaves;
+int tipc_max_ports;
+int tipc_max_subscriptions;
+int tipc_max_publications;
+int tipc_net_id;
+int tipc_remote_management;
+
+
+int tipc_get_mode(void)
+{
+	return tipc_mode;
+}
+
+/**
+ * stop_net - shut down TIPC networking sub-systems
+ */
+
+void stop_net(void)
+{
+	eth_media_stop();
+	tipc_stop_net();
+}
+
+/**
+ * start_net - start TIPC networking sub-systems
+ */
+
+int start_net(void)
+{
+	int res;
+
+	if ((res = tipc_start_net()) ||
+	    (res = eth_media_start())) {
+		stop_net();
+	}
+	return res;
+}
+
+/**
+ * stop_core - switch TIPC from SINGLE NODE to NOT RUNNING mode
+ */
+
+void stop_core(void)
+{
+	if (tipc_mode != TIPC_NODE_MODE)
+		return;
+
+	tipc_mode = TIPC_NOT_RUNNING;
+
+	netlink_stop();
+	handler_stop();
+	cfg_stop();
+	subscr_stop();
+	reg_stop();
+	nametbl_stop();
+	ref_table_stop();
+	socket_stop();
+}
+
+/**
+ * start_core - switch TIPC from NOT RUNNING to SINGLE NODE mode
+ */
+
+int start_core(void)
+{
+	int res;
+
+	if (tipc_mode != TIPC_NOT_RUNNING)
+		return -ENOPROTOOPT;
+
+	get_random_bytes(&tipc_random, sizeof(tipc_random));
+	tipc_mode = TIPC_NODE_MODE;
+
+	if ((res = handler_start()) || 
+	    (res = ref_table_init(tipc_max_ports + tipc_max_subscriptions,
+				  tipc_random)) ||
+	    (res = reg_start()) ||
+	    (res = nametbl_init()) ||
+            (res = k_signal((Handler)subscr_start, 0)) ||
+	    (res = k_signal((Handler)cfg_init, 0)) || 
+	    (res = netlink_start()) ||
+	    (res = socket_init())) {
+		stop_core();
+	}
+	return res;
+}
+
+
+static int __init tipc_init(void)
+{
+	int res;
+
+	log_reinit(CONFIG_TIPC_LOG);
+	info("Activated (compiled " __DATE__ " " __TIME__ ")\n");
+
+	tipc_own_addr = 0;
+	tipc_remote_management = 1;
+	tipc_max_publications = 10000;
+	tipc_max_subscriptions = 2000;
+	tipc_max_ports = delimit(CONFIG_TIPC_PORTS, 127, 65536);
+	tipc_max_zones = delimit(CONFIG_TIPC_ZONES, 1, 511);
+	tipc_max_clusters = delimit(CONFIG_TIPC_CLUSTERS, 1, 1);
+	tipc_max_nodes = delimit(CONFIG_TIPC_NODES, 8, 2047);
+	tipc_max_slaves = delimit(CONFIG_TIPC_SLAVE_NODES, 0, 2047);
+	tipc_net_id = 4711;
+
+	if ((res = start_core()))
+		err("Unable to start in single node mode\n");
+	else	
+		info("Started in single node mode\n");
+        return res;
+}
+
+static void __exit tipc_exit(void)
+{
+	stop_net();
+	stop_core();
+	info("Deactivated\n");
+	log_stop();
+}
+
+module_init(tipc_init);
+module_exit(tipc_exit);
+
+MODULE_DESCRIPTION("TIPC: Transparent Inter Process Communication");
+MODULE_LICENSE("Dual BSD/GPL");
+
+/* Native TIPC API for kernel-space applications (see tipc.h) */
+
+EXPORT_SYMBOL(tipc_attach);
+EXPORT_SYMBOL(tipc_detach);
+EXPORT_SYMBOL(tipc_get_addr);
+EXPORT_SYMBOL(tipc_get_mode);
+EXPORT_SYMBOL(tipc_createport);
+EXPORT_SYMBOL(tipc_deleteport);
+EXPORT_SYMBOL(tipc_ownidentity);
+EXPORT_SYMBOL(tipc_portimportance);
+EXPORT_SYMBOL(tipc_set_portimportance);
+EXPORT_SYMBOL(tipc_portunreliable);
+EXPORT_SYMBOL(tipc_set_portunreliable);
+EXPORT_SYMBOL(tipc_portunreturnable);
+EXPORT_SYMBOL(tipc_set_portunreturnable);
+EXPORT_SYMBOL(tipc_publish);
+EXPORT_SYMBOL(tipc_withdraw);
+EXPORT_SYMBOL(tipc_connect2port);
+EXPORT_SYMBOL(tipc_disconnect);
+EXPORT_SYMBOL(tipc_shutdown);
+EXPORT_SYMBOL(tipc_isconnected);
+EXPORT_SYMBOL(tipc_peer);
+EXPORT_SYMBOL(tipc_ref_valid);
+EXPORT_SYMBOL(tipc_send);
+EXPORT_SYMBOL(tipc_send_buf);
+EXPORT_SYMBOL(tipc_send2name);
+EXPORT_SYMBOL(tipc_forward2name);
+EXPORT_SYMBOL(tipc_send_buf2name);
+EXPORT_SYMBOL(tipc_forward_buf2name);
+EXPORT_SYMBOL(tipc_send2port);
+EXPORT_SYMBOL(tipc_forward2port);
+EXPORT_SYMBOL(tipc_send_buf2port);
+EXPORT_SYMBOL(tipc_forward_buf2port);
+EXPORT_SYMBOL(tipc_multicast);
+/* EXPORT_SYMBOL(tipc_multicast_buf); not available yet */
+EXPORT_SYMBOL(tipc_ispublished);
+EXPORT_SYMBOL(tipc_available_nodes);
+
+/* TIPC API for external bearers (see tipc_bearer.h) */
+
+EXPORT_SYMBOL(tipc_block_bearer);
+EXPORT_SYMBOL(tipc_continue); 
+EXPORT_SYMBOL(tipc_disable_bearer);
+EXPORT_SYMBOL(tipc_enable_bearer);
+EXPORT_SYMBOL(tipc_recv_msg);
+EXPORT_SYMBOL(tipc_register_media); 
+
+/* TIPC API for external APIs (see tipc_port.h) */
+
+EXPORT_SYMBOL(tipc_createport_raw);
+EXPORT_SYMBOL(tipc_set_msg_option);
+EXPORT_SYMBOL(tipc_reject_msg);
+EXPORT_SYMBOL(tipc_send_buf_fast);
+EXPORT_SYMBOL(tipc_acknowledge);
+EXPORT_SYMBOL(tipc_get_port);
+EXPORT_SYMBOL(tipc_get_handle);
+