From b97bf3fd8f6a16966d4f18983b2c40993ff937d4 Mon Sep 17 00:00:00 2001
From: Per Liden <per.liden@nospam.ericsson.com>
Date: Mon, 2 Jan 2006 19:04:38 +0100
Subject: [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>
---
 net/tipc/config.c | 715 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 715 insertions(+)
 create mode 100644 net/tipc/config.c

(limited to 'net/tipc/config.c')

diff --git a/net/tipc/config.c b/net/tipc/config.c
new file mode 100644
index 00000000000..0f31c342d11
--- /dev/null
+++ b/net/tipc/config.c
@@ -0,0 +1,715 @@
+/*
+ * net/tipc/config.c: TIPC configuration management code
+ * 
+ * Copyright (c) 2003-2005, Ericsson Research Canada
+ * Copyright (c) 2004-2005, 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 "core.h"
+#include "dbg.h"
+#include "bearer.h"
+#include "port.h"
+#include "link.h"
+#include "zone.h"
+#include "addr.h"
+#include "name_table.h"
+#include "node.h"
+#include "config.h"
+#include "discover.h"
+
+struct subscr_data {
+	char usr_handle[8];
+	u32 domain;
+	u32 port_ref;
+	struct list_head subd_list;
+};
+
+struct manager {
+	u32 user_ref;
+	u32 port_ref;
+	u32 subscr_ref;
+	u32 link_subscriptions;
+	struct list_head link_subscribers;
+};
+
+static struct manager mng = { 0};
+
+static spinlock_t config_lock = SPIN_LOCK_UNLOCKED;
+
+static const void *req_tlv_area;	/* request message TLV area */
+static int req_tlv_space;		/* request message TLV area size */
+static int rep_headroom;		/* reply message headroom to use */
+
+
+void cfg_link_event(u32 addr, char *name, int up)
+{
+	/* TIPC DOESN'T HANDLE LINK EVENT SUBSCRIPTIONS AT THE MOMENT */
+}
+
+
+struct sk_buff *cfg_reply_alloc(int payload_size)
+{
+	struct sk_buff *buf;
+
+	buf = alloc_skb(rep_headroom + payload_size, GFP_ATOMIC);
+	if (buf)
+		skb_reserve(buf, rep_headroom);
+	return buf;
+}
+
+int cfg_append_tlv(struct sk_buff *buf, int tlv_type, 
+		   void *tlv_data, int tlv_data_size)
+{
+	struct tlv_desc *tlv = (struct tlv_desc *)buf->tail;
+	int new_tlv_space = TLV_SPACE(tlv_data_size);
+
+	if (skb_tailroom(buf) < new_tlv_space) {
+		dbg("cfg_append_tlv unable to append TLV\n");
+		return 0;
+	}
+	skb_put(buf, new_tlv_space);
+	tlv->tlv_type = htons(tlv_type);
+	tlv->tlv_len  = htons(TLV_LENGTH(tlv_data_size));
+	if (tlv_data_size && tlv_data)
+		memcpy(TLV_DATA(tlv), tlv_data, tlv_data_size);
+	return 1;
+}
+
+struct sk_buff *cfg_reply_unsigned_type(u16 tlv_type, u32 value)
+{
+	struct sk_buff *buf;
+	u32 value_net;
+
+	buf = cfg_reply_alloc(TLV_SPACE(sizeof(value)));
+	if (buf) {
+		value_net = htonl(value);
+		cfg_append_tlv(buf, tlv_type, &value_net, 
+			       sizeof(value_net));
+	}
+	return buf;
+}
+
+struct sk_buff *cfg_reply_string_type(u16 tlv_type, char *string)
+{
+	struct sk_buff *buf;
+	int string_len = strlen(string) + 1;
+
+	buf = cfg_reply_alloc(TLV_SPACE(string_len));
+	if (buf)
+		cfg_append_tlv(buf, tlv_type, string, string_len);
+	return buf;
+}
+
+
+
+
+#if 0
+
+/* Now obsolete code for handling commands not yet implemented the new way */
+
+int tipc_cfg_cmd(const struct tipc_cmd_msg * msg,
+		 char *data,
+		 u32 sz,
+		 u32 *ret_size,
+		 struct tipc_portid *orig)
+{
+	int rv = -EINVAL;
+	u32 cmd = msg->cmd;
+
+	*ret_size = 0;
+	switch (cmd) {
+	case TIPC_REMOVE_LINK:
+	case TIPC_CMD_BLOCK_LINK:
+	case TIPC_CMD_UNBLOCK_LINK:
+		if (!cfg_check_connection(orig))
+			rv = link_control(msg->argv.link_name, msg->cmd, 0);
+		break;
+	case TIPC_ESTABLISH:
+		{
+			int connected;
+
+			tipc_isconnected(mng.conn_port_ref, &connected);
+			if (connected || !orig) {
+				rv = TIPC_FAILURE;
+				break;
+			}
+			rv = tipc_connect2port(mng.conn_port_ref, orig);
+			if (rv == TIPC_OK)
+				orig = 0;
+			break;
+		}
+	case TIPC_GET_PEER_ADDRESS:
+		*ret_size = link_peer_addr(msg->argv.link_name, data, sz);
+		break;
+	case TIPC_GET_ROUTES:
+		rv = TIPC_OK;
+		break;
+	default: {}
+	}
+	if (*ret_size)
+		rv = TIPC_OK;
+	return rv;
+}
+
+static void cfg_cmd_event(struct tipc_cmd_msg *msg,
+			  char *data,
+			  u32 sz,        
+			  struct tipc_portid const *orig)
+{
+	int rv = -EINVAL;
+	struct tipc_cmd_result_msg rmsg;
+	struct iovec msg_sect[2];
+	int *arg;
+
+	msg->cmd = ntohl(msg->cmd);
+
+	cfg_prepare_res_msg(msg->cmd, msg->usr_handle, rv, &rmsg, msg_sect, 
+			    data, 0);
+	if (ntohl(msg->magic) != TIPC_MAGIC)
+		goto exit;
+
+	switch (msg->cmd) {
+	case TIPC_CREATE_LINK:
+		if (!cfg_check_connection(orig))
+			rv = disc_create_link(&msg->argv.create_link);
+		break;
+	case TIPC_LINK_SUBSCRIBE:
+		{
+			struct subscr_data *sub;
+
+			if (mng.link_subscriptions > 64)
+				break;
+			sub = (struct subscr_data *)kmalloc(sizeof(*sub),
+							    GFP_ATOMIC);
+			if (sub == NULL) {
+				warn("Memory squeeze; dropped remote link subscription\n");
+				break;
+			}
+			INIT_LIST_HEAD(&sub->subd_list);
+			tipc_createport(mng.user_ref,
+					(void *)sub,
+					TIPC_HIGH_IMPORTANCE,
+					0,
+					0,
+					(tipc_conn_shutdown_event)cfg_linksubscr_cancel,
+					0,
+					0,
+					(tipc_conn_msg_event)cfg_linksubscr_cancel,
+					0,
+					&sub->port_ref);
+			if (!sub->port_ref) {
+				kfree(sub);
+				break;
+			}
+			memcpy(sub->usr_handle,msg->usr_handle,
+			       sizeof(sub->usr_handle));
+			sub->domain = msg->argv.domain;
+			list_add_tail(&sub->subd_list, &mng.link_subscribers);
+			tipc_connect2port(sub->port_ref, orig);
+			rmsg.retval = TIPC_OK;
+			tipc_send(sub->port_ref, 2u, msg_sect);
+			mng.link_subscriptions++;
+			return;
+		}
+	default:
+		rv = tipc_cfg_cmd(msg, data, sz, (u32 *)&msg_sect[1].iov_len, orig);
+	}
+	exit:
+	rmsg.result_len = htonl(msg_sect[1].iov_len);
+	rmsg.retval = htonl(rv);
+	cfg_respond(msg_sect, 2u, orig);
+}
+#endif
+
+static struct sk_buff *cfg_enable_bearer(void)
+{
+	struct tipc_bearer_config *args;
+
+	if (!TLV_CHECK(req_tlv_area, req_tlv_space, TIPC_TLV_BEARER_CONFIG))
+		return cfg_reply_error_string(TIPC_CFG_TLV_ERROR);
+
+	args = (struct tipc_bearer_config *)TLV_DATA(req_tlv_area);
+	if (tipc_enable_bearer(args->name,
+			       ntohl(args->detect_scope),
+			       ntohl(args->priority)))
+		return cfg_reply_error_string("unable to enable bearer");
+
+	return cfg_reply_none();
+}
+
+static struct sk_buff *cfg_disable_bearer(void)
+{
+	if (!TLV_CHECK(req_tlv_area, req_tlv_space, TIPC_TLV_BEARER_NAME))
+		return cfg_reply_error_string(TIPC_CFG_TLV_ERROR);
+
+	if (tipc_disable_bearer((char *)TLV_DATA(req_tlv_area)))
+		return cfg_reply_error_string("unable to disable bearer");
+
+	return cfg_reply_none();
+}
+
+static struct sk_buff *cfg_set_own_addr(void)
+{
+	u32 addr;
+
+	if (!TLV_CHECK(req_tlv_area, req_tlv_space, TIPC_TLV_NET_ADDR))
+		return cfg_reply_error_string(TIPC_CFG_TLV_ERROR);
+
+	addr = *(u32 *)TLV_DATA(req_tlv_area);
+	addr = ntohl(addr);
+	if (addr == tipc_own_addr)
+		return cfg_reply_none();
+	if (!addr_node_valid(addr))
+		return cfg_reply_error_string(TIPC_CFG_INVALID_VALUE
+					      " (node address)");
+	if (tipc_own_addr)
+		return cfg_reply_error_string(TIPC_CFG_NOT_SUPPORTED
+					      " (cannot change node address once assigned)");
+
+	spin_unlock_bh(&config_lock);
+	stop_net();
+	tipc_own_addr = addr;
+	start_net();
+	spin_lock_bh(&config_lock);
+	return cfg_reply_none();
+}
+
+static struct sk_buff *cfg_set_remote_mng(void)
+{
+	u32 value;
+
+	if (!TLV_CHECK(req_tlv_area, req_tlv_space, TIPC_TLV_UNSIGNED))
+		return cfg_reply_error_string(TIPC_CFG_TLV_ERROR);
+
+	value = *(u32 *)TLV_DATA(req_tlv_area);
+	value = ntohl(value);
+	tipc_remote_management = (value != 0);
+	return cfg_reply_none();
+}
+
+static struct sk_buff *cfg_set_max_publications(void)
+{
+	u32 value;
+
+	if (!TLV_CHECK(req_tlv_area, req_tlv_space, TIPC_TLV_UNSIGNED))
+		return cfg_reply_error_string(TIPC_CFG_TLV_ERROR);
+
+	value = *(u32 *)TLV_DATA(req_tlv_area);
+	value = ntohl(value);
+	if (value != delimit(value, 1, 65535))
+		return cfg_reply_error_string(TIPC_CFG_INVALID_VALUE
+					      " (max publications must be 1-65535)");
+	tipc_max_publications = value;
+	return cfg_reply_none();
+}
+
+static struct sk_buff *cfg_set_max_subscriptions(void)
+{
+	u32 value;
+
+	if (!TLV_CHECK(req_tlv_area, req_tlv_space, TIPC_TLV_UNSIGNED))
+		return cfg_reply_error_string(TIPC_CFG_TLV_ERROR);
+
+	value = *(u32 *)TLV_DATA(req_tlv_area);
+	value = ntohl(value);
+	if (value != delimit(value, 1, 65535))
+		return cfg_reply_error_string(TIPC_CFG_INVALID_VALUE
+					      " (max subscriptions must be 1-65535");
+	tipc_max_subscriptions = value;
+	return cfg_reply_none();
+}
+
+static struct sk_buff *cfg_set_max_ports(void)
+{
+	int orig_mode;
+	u32 value;
+
+	if (!TLV_CHECK(req_tlv_area, req_tlv_space, TIPC_TLV_UNSIGNED))
+		return cfg_reply_error_string(TIPC_CFG_TLV_ERROR);
+	value = *(u32 *)TLV_DATA(req_tlv_area);
+	value = ntohl(value);
+	if (value != delimit(value, 127, 65535))
+		return cfg_reply_error_string(TIPC_CFG_INVALID_VALUE
+					      " (max ports must be 127-65535)");
+
+	if (value == tipc_max_ports)
+		return cfg_reply_none();
+
+	if (atomic_read(&tipc_user_count) > 2)
+		return cfg_reply_error_string(TIPC_CFG_NOT_SUPPORTED
+					      " (cannot change max ports while TIPC users exist)");
+
+	spin_unlock_bh(&config_lock);
+	orig_mode = tipc_get_mode();
+	if (orig_mode == TIPC_NET_MODE)
+		stop_net();
+	stop_core();
+	tipc_max_ports = value;
+	start_core();
+	if (orig_mode == TIPC_NET_MODE)
+		start_net();
+	spin_lock_bh(&config_lock);
+	return cfg_reply_none();
+}
+
+static struct sk_buff *set_net_max(int value, int *parameter)
+{
+	int orig_mode;
+
+	if (value != *parameter) {
+		orig_mode = tipc_get_mode();
+		if (orig_mode == TIPC_NET_MODE)
+			stop_net();
+		*parameter = value;
+		if (orig_mode == TIPC_NET_MODE)
+			start_net();
+	}
+
+	return cfg_reply_none();
+}
+
+static struct sk_buff *cfg_set_max_zones(void)
+{
+	u32 value;
+
+	if (!TLV_CHECK(req_tlv_area, req_tlv_space, TIPC_TLV_UNSIGNED))
+		return cfg_reply_error_string(TIPC_CFG_TLV_ERROR);
+	value = *(u32 *)TLV_DATA(req_tlv_area);
+	value = ntohl(value);
+	if (value != delimit(value, 1, 255))
+		return cfg_reply_error_string(TIPC_CFG_INVALID_VALUE
+					      " (max zones must be 1-255)");
+	return set_net_max(value, &tipc_max_zones);
+}
+
+static struct sk_buff *cfg_set_max_clusters(void)
+{
+	u32 value;
+
+	if (!TLV_CHECK(req_tlv_area, req_tlv_space, TIPC_TLV_UNSIGNED))
+		return cfg_reply_error_string(TIPC_CFG_TLV_ERROR);
+	value = *(u32 *)TLV_DATA(req_tlv_area);
+	value = ntohl(value);
+	if (value != 1)
+		return cfg_reply_error_string(TIPC_CFG_NOT_SUPPORTED
+					      " (max clusters fixed at 1)");
+	return cfg_reply_none();
+}
+
+static struct sk_buff *cfg_set_max_nodes(void)
+{
+	u32 value;
+
+	if (!TLV_CHECK(req_tlv_area, req_tlv_space, TIPC_TLV_UNSIGNED))
+		return cfg_reply_error_string(TIPC_CFG_TLV_ERROR);
+	value = *(u32 *)TLV_DATA(req_tlv_area);
+	value = ntohl(value);
+	if (value != delimit(value, 8, 2047))
+		return cfg_reply_error_string(TIPC_CFG_INVALID_VALUE
+					      " (max nodes must be 8-2047)");
+	return set_net_max(value, &tipc_max_nodes);
+}
+
+static struct sk_buff *cfg_set_max_slaves(void)
+{
+	u32 value;
+
+	if (!TLV_CHECK(req_tlv_area, req_tlv_space, TIPC_TLV_UNSIGNED))
+		return cfg_reply_error_string(TIPC_CFG_TLV_ERROR);
+	value = *(u32 *)TLV_DATA(req_tlv_area);
+	value = ntohl(value);
+	if (value != 0)
+		return cfg_reply_error_string(TIPC_CFG_NOT_SUPPORTED
+					      " (max secondary nodes fixed at 0)");
+	return cfg_reply_none();
+}
+
+static struct sk_buff *cfg_set_netid(void)
+{
+	u32 value;
+
+	if (!TLV_CHECK(req_tlv_area, req_tlv_space, TIPC_TLV_UNSIGNED))
+		return cfg_reply_error_string(TIPC_CFG_TLV_ERROR);
+	value = *(u32 *)TLV_DATA(req_tlv_area);
+	value = ntohl(value);
+	if (value != delimit(value, 1, 9999))
+		return cfg_reply_error_string(TIPC_CFG_INVALID_VALUE
+					      " (network id must be 1-9999)");
+
+	if (tipc_own_addr)
+		return cfg_reply_error_string(TIPC_CFG_NOT_SUPPORTED
+					      " (cannot change network id once part of network)");
+	
+	return set_net_max(value, &tipc_net_id);
+}
+
+struct sk_buff *cfg_do_cmd(u32 orig_node, u16 cmd, const void *request_area,
+			   int request_space, int reply_headroom)
+{
+	struct sk_buff *rep_tlv_buf;
+
+	spin_lock_bh(&config_lock);
+
+	/* Save request and reply details in a well-known location */
+
+	req_tlv_area = request_area;
+	req_tlv_space = request_space;
+	rep_headroom = reply_headroom;
+
+	/* Check command authorization */
+
+	if (likely(orig_node == tipc_own_addr)) {
+		/* command is permitted */
+	} else if (cmd >= 0x8000) {
+		rep_tlv_buf = cfg_reply_error_string(TIPC_CFG_NOT_SUPPORTED
+						     " (cannot be done remotely)");
+		goto exit;
+	} else if (!tipc_remote_management) {
+		rep_tlv_buf = cfg_reply_error_string(TIPC_CFG_NO_REMOTE);
+		goto exit;
+	}
+	else if (cmd >= 0x4000) {
+		u32 domain = 0;
+
+		if ((nametbl_translate(TIPC_ZM_SRV, 0, &domain) == 0) ||
+		    (domain != orig_node)) {
+			rep_tlv_buf = cfg_reply_error_string(TIPC_CFG_NOT_ZONE_MSTR);
+			goto exit;
+		}
+	}
+
+	/* Call appropriate processing routine */
+
+	switch (cmd) {
+	case TIPC_CMD_NOOP:
+		rep_tlv_buf = cfg_reply_none();
+		break;
+	case TIPC_CMD_GET_NODES:
+		rep_tlv_buf = node_get_nodes(req_tlv_area, req_tlv_space);
+		break;
+	case TIPC_CMD_GET_LINKS:
+		rep_tlv_buf = node_get_links(req_tlv_area, req_tlv_space);
+		break;
+	case TIPC_CMD_SHOW_LINK_STATS:
+		rep_tlv_buf = link_cmd_show_stats(req_tlv_area, req_tlv_space);
+		break;
+	case TIPC_CMD_RESET_LINK_STATS:
+		rep_tlv_buf = link_cmd_reset_stats(req_tlv_area, req_tlv_space);
+		break;
+	case TIPC_CMD_SHOW_NAME_TABLE:
+		rep_tlv_buf = nametbl_get(req_tlv_area, req_tlv_space);
+		break;
+	case TIPC_CMD_GET_BEARER_NAMES:
+		rep_tlv_buf = bearer_get_names();
+		break;
+	case TIPC_CMD_GET_MEDIA_NAMES:
+		rep_tlv_buf = media_get_names();
+		break;
+	case TIPC_CMD_SHOW_PORTS:
+		rep_tlv_buf = port_get_ports();
+		break;
+#if 0
+	case TIPC_CMD_SHOW_PORT_STATS:
+		rep_tlv_buf = port_show_stats(req_tlv_area, req_tlv_space);
+		break;
+	case TIPC_CMD_RESET_PORT_STATS:
+		rep_tlv_buf = cfg_reply_error_string(TIPC_CFG_NOT_SUPPORTED);
+		break;
+#endif
+	case TIPC_CMD_SET_LOG_SIZE:
+		rep_tlv_buf = log_resize(req_tlv_area, req_tlv_space);
+		break;
+	case TIPC_CMD_DUMP_LOG:
+		rep_tlv_buf = log_dump();
+		break;
+	case TIPC_CMD_SET_LINK_TOL:
+	case TIPC_CMD_SET_LINK_PRI:
+	case TIPC_CMD_SET_LINK_WINDOW:
+		rep_tlv_buf = link_cmd_config(req_tlv_area, req_tlv_space, cmd);
+		break;
+	case TIPC_CMD_ENABLE_BEARER:
+		rep_tlv_buf = cfg_enable_bearer();
+		break;
+	case TIPC_CMD_DISABLE_BEARER:
+		rep_tlv_buf = cfg_disable_bearer();
+		break;
+	case TIPC_CMD_SET_NODE_ADDR:
+		rep_tlv_buf = cfg_set_own_addr();
+		break;
+	case TIPC_CMD_SET_REMOTE_MNG:
+		rep_tlv_buf = cfg_set_remote_mng();
+		break;
+	case TIPC_CMD_SET_MAX_PORTS:
+		rep_tlv_buf = cfg_set_max_ports();
+		break;
+	case TIPC_CMD_SET_MAX_PUBL:
+		rep_tlv_buf = cfg_set_max_publications();
+		break;
+	case TIPC_CMD_SET_MAX_SUBSCR:
+		rep_tlv_buf = cfg_set_max_subscriptions();
+		break;
+	case TIPC_CMD_SET_MAX_ZONES:
+		rep_tlv_buf = cfg_set_max_zones();
+		break;
+	case TIPC_CMD_SET_MAX_CLUSTERS:
+		rep_tlv_buf = cfg_set_max_clusters();
+		break;
+	case TIPC_CMD_SET_MAX_NODES:
+		rep_tlv_buf = cfg_set_max_nodes();
+		break;
+	case TIPC_CMD_SET_MAX_SLAVES:
+		rep_tlv_buf = cfg_set_max_slaves();
+		break;
+	case TIPC_CMD_SET_NETID:
+		rep_tlv_buf = cfg_set_netid();
+		break;
+	case TIPC_CMD_GET_REMOTE_MNG:
+		rep_tlv_buf = cfg_reply_unsigned(tipc_remote_management);
+		break;
+	case TIPC_CMD_GET_MAX_PORTS:
+		rep_tlv_buf = cfg_reply_unsigned(tipc_max_ports);
+		break;
+	case TIPC_CMD_GET_MAX_PUBL:
+		rep_tlv_buf = cfg_reply_unsigned(tipc_max_publications);
+		break;
+	case TIPC_CMD_GET_MAX_SUBSCR:
+		rep_tlv_buf = cfg_reply_unsigned(tipc_max_subscriptions);
+		break;
+	case TIPC_CMD_GET_MAX_ZONES:
+		rep_tlv_buf = cfg_reply_unsigned(tipc_max_zones);
+		break;
+	case TIPC_CMD_GET_MAX_CLUSTERS:
+		rep_tlv_buf = cfg_reply_unsigned(tipc_max_clusters);
+		break;
+	case TIPC_CMD_GET_MAX_NODES:
+		rep_tlv_buf = cfg_reply_unsigned(tipc_max_nodes);
+		break;
+	case TIPC_CMD_GET_MAX_SLAVES:
+		rep_tlv_buf = cfg_reply_unsigned(tipc_max_slaves);
+		break;
+	case TIPC_CMD_GET_NETID:
+		rep_tlv_buf = cfg_reply_unsigned(tipc_net_id);
+		break;
+	default:
+		rep_tlv_buf = NULL;
+		break;
+	}
+
+	/* Return reply buffer */
+exit:
+	spin_unlock_bh(&config_lock);
+	return rep_tlv_buf;
+}
+
+static void cfg_named_msg_event(void *userdata,
+				u32 port_ref,
+				struct sk_buff **buf,
+				const unchar *msg,
+				u32 size,
+				u32 importance, 
+				struct tipc_portid const *orig,
+				struct tipc_name_seq const *dest)
+{
+	struct tipc_cfg_msg_hdr *req_hdr;
+	struct tipc_cfg_msg_hdr *rep_hdr;
+	struct sk_buff *rep_buf;
+
+	/* Validate configuration message header (ignore invalid message) */
+
+	req_hdr = (struct tipc_cfg_msg_hdr *)msg;
+	if ((size < sizeof(*req_hdr)) ||
+	    (size != TCM_ALIGN(ntohl(req_hdr->tcm_len))) ||
+	    (ntohs(req_hdr->tcm_flags) != TCM_F_REQUEST)) {
+		warn("discarded invalid configuration message\n");
+		return;
+	}
+
+	/* Generate reply for request (if can't, return request) */
+
+	rep_buf = cfg_do_cmd(orig->node,
+			     ntohs(req_hdr->tcm_type), 
+			     msg + sizeof(*req_hdr),
+			     size - sizeof(*req_hdr),
+			     BUF_HEADROOM + MAX_H_SIZE + sizeof(*rep_hdr));
+	if (rep_buf) {
+		skb_push(rep_buf, sizeof(*rep_hdr));
+		rep_hdr = (struct tipc_cfg_msg_hdr *)rep_buf->data;
+		memcpy(rep_hdr, req_hdr, sizeof(*rep_hdr));
+		rep_hdr->tcm_len = htonl(rep_buf->len);
+		rep_hdr->tcm_flags &= htons(~TCM_F_REQUEST);
+	} else {
+		rep_buf = *buf;
+		*buf = NULL;
+	}
+
+	/* NEED TO ADD CODE TO HANDLE FAILED SEND (SUCH AS CONGESTION) */
+	tipc_send_buf2port(port_ref, orig, rep_buf, rep_buf->len);
+}
+
+int cfg_init(void)
+{
+	struct tipc_name_seq seq;
+	int res;
+
+	memset(&mng, 0, sizeof(mng));
+	INIT_LIST_HEAD(&mng.link_subscribers);
+
+	res = tipc_attach(&mng.user_ref, 0, 0);
+	if (res)
+		goto failed;
+
+	res = tipc_createport(mng.user_ref, 0, TIPC_CRITICAL_IMPORTANCE,
+			      NULL, NULL, NULL,
+			      NULL, cfg_named_msg_event, NULL,
+			      NULL, &mng.port_ref);
+	if (res)
+		goto failed;
+
+	seq.type = TIPC_CFG_SRV;
+	seq.lower = seq.upper = tipc_own_addr;
+	res = nametbl_publish_rsv(mng.port_ref, TIPC_ZONE_SCOPE, &seq);
+	if (res)
+		goto failed;
+
+	return 0;
+
+failed:
+	err("Unable to create configuration service\n");
+	tipc_detach(mng.user_ref);
+	mng.user_ref = 0;
+	return res;
+}
+
+void cfg_stop(void)
+{
+	if (mng.user_ref) {
+		tipc_detach(mng.user_ref);
+		mng.user_ref = 0;
+	}
+}
-- 
cgit v1.2.3


From 9ea1fd3c1a15c620d1e3d0aa269d34b705477003 Mon Sep 17 00:00:00 2001
From: Per Liden <per.liden@nospam.ericsson.com>
Date: Wed, 11 Jan 2006 13:30:43 +0100
Subject: [TIPC] License header update

The license header in each file now more clearly state that this
code is licensed under a dual BSD/GPL. Before this was only
evident if you looked at the MODULE_LICENSE line in core.c.

Signed-off-by: Per Liden <per.liden@nospam.ericsson.com>
---
 net/tipc/config.c | 42 +++++++++++++++++++++++-------------------
 1 file changed, 23 insertions(+), 19 deletions(-)

(limited to 'net/tipc/config.c')

diff --git a/net/tipc/config.c b/net/tipc/config.c
index 0f31c342d11..9e55cf8caec 100644
--- a/net/tipc/config.c
+++ b/net/tipc/config.c
@@ -6,28 +6,32 @@
  * Copyright (c) 2005-2006, Ericsson AB
  * All rights reserved.
  *
- * Redistribution and use in source and binary forms, with or without 
+ * 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.
+ * 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.
  *
- * 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 
+ * 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.
  */
 
-- 
cgit v1.2.3


From 9da1c8b694f8e72a16f259614caaae50cbcdaf10 Mon Sep 17 00:00:00 2001
From: Per Liden <per.liden@nospam.ericsson.com>
Date: Wed, 11 Jan 2006 18:40:41 +0100
Subject: [TIPC] Update of file headers

The copyright statements from different parts of Ericsson
have been merged into one.

Signed-off-by: Per Liden <per.liden@nospam.ericsson.com>
---
 net/tipc/config.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

(limited to 'net/tipc/config.c')

diff --git a/net/tipc/config.c b/net/tipc/config.c
index 9e55cf8caec..6c45771bd99 100644
--- a/net/tipc/config.c
+++ b/net/tipc/config.c
@@ -1,9 +1,8 @@
 /*
  * net/tipc/config.c: TIPC configuration management code
  * 
- * Copyright (c) 2003-2005, Ericsson Research Canada
+ * Copyright (c) 2003-2006, Ericsson AB
  * Copyright (c) 2004-2005, Wind River Systems
- * Copyright (c) 2005-2006, Ericsson AB
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
-- 
cgit v1.2.3


From 593a5f22d8035b1396a958b6bbde9f13c0f09549 Mon Sep 17 00:00:00 2001
From: Per Liden <per.liden@nospam.ericsson.com>
Date: Wed, 11 Jan 2006 19:14:19 +0100
Subject: [TIPC] More updates of file headers

Updated copyright notice to include the year the file was
actually created. Information about file creation dates
was extracted from the files in the old CVS repository
at tipc.sourceforge.net.

Signed-off-by: Per Liden <per.liden@nospam.ericsson.com>
---
 net/tipc/config.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'net/tipc/config.c')

diff --git a/net/tipc/config.c b/net/tipc/config.c
index 6c45771bd99..8ddef4fce2c 100644
--- a/net/tipc/config.c
+++ b/net/tipc/config.c
@@ -1,7 +1,7 @@
 /*
  * net/tipc/config.c: TIPC configuration management code
  * 
- * Copyright (c) 2003-2006, Ericsson AB
+ * Copyright (c) 2002-2006, Ericsson AB
  * Copyright (c) 2004-2005, Wind River Systems
  * All rights reserved.
  *
-- 
cgit v1.2.3