diff options
Diffstat (limited to 'net/tipc/config.c')
| -rw-r--r-- | net/tipc/config.c | 342 | 
1 files changed, 0 insertions, 342 deletions
| diff --git a/net/tipc/config.c b/net/tipc/config.c deleted file mode 100644 index 876f4c6a2631..000000000000 --- a/net/tipc/config.c +++ /dev/null @@ -1,342 +0,0 @@ -/* - * net/tipc/config.c: TIPC configuration management code - * - * Copyright (c) 2002-2006, Ericsson AB - * Copyright (c) 2004-2007, 2010-2013, 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 "socket.h" -#include "name_table.h" -#include "config.h" -#include "server.h" - -#define REPLY_TRUNCATED "<truncated>\n" - -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 */ - -struct sk_buff *tipc_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 tipc_cfg_append_tlv(struct sk_buff *buf, int tlv_type, -			void *tlv_data, int tlv_data_size) -{ -	struct tlv_desc *tlv = (struct tlv_desc *)skb_tail_pointer(buf); -	int new_tlv_space = TLV_SPACE(tlv_data_size); - -	if (skb_tailroom(buf) < new_tlv_space) -		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; -} - -static struct sk_buff *tipc_cfg_reply_unsigned_type(u16 tlv_type, u32 value) -{ -	struct sk_buff *buf; -	__be32 value_net; - -	buf = tipc_cfg_reply_alloc(TLV_SPACE(sizeof(value))); -	if (buf) { -		value_net = htonl(value); -		tipc_cfg_append_tlv(buf, tlv_type, &value_net, -				    sizeof(value_net)); -	} -	return buf; -} - -static struct sk_buff *tipc_cfg_reply_unsigned(u32 value) -{ -	return tipc_cfg_reply_unsigned_type(TIPC_TLV_UNSIGNED, value); -} - -struct sk_buff *tipc_cfg_reply_string_type(u16 tlv_type, char *string) -{ -	struct sk_buff *buf; -	int string_len = strlen(string) + 1; - -	buf = tipc_cfg_reply_alloc(TLV_SPACE(string_len)); -	if (buf) -		tipc_cfg_append_tlv(buf, tlv_type, string, string_len); -	return buf; -} - -static struct sk_buff *tipc_show_stats(void) -{ -	struct sk_buff *buf; -	struct tlv_desc *rep_tlv; -	char *pb; -	int pb_len; -	int str_len; -	u32 value; - -	if (!TLV_CHECK(req_tlv_area, req_tlv_space, TIPC_TLV_UNSIGNED)) -		return tipc_cfg_reply_error_string(TIPC_CFG_TLV_ERROR); - -	value = ntohl(*(u32 *)TLV_DATA(req_tlv_area)); -	if (value != 0) -		return tipc_cfg_reply_error_string("unsupported argument"); - -	buf = tipc_cfg_reply_alloc(TLV_SPACE(ULTRA_STRING_MAX_LEN)); -	if (buf == NULL) -		return NULL; - -	rep_tlv = (struct tlv_desc *)buf->data; -	pb = TLV_DATA(rep_tlv); -	pb_len = ULTRA_STRING_MAX_LEN; - -	str_len = tipc_snprintf(pb, pb_len, "TIPC version " TIPC_MOD_VER "\n"); -	str_len += 1;	/* for "\0" */ -	skb_put(buf, TLV_SPACE(str_len)); -	TLV_SET(rep_tlv, TIPC_TLV_ULTRA_STRING, NULL, str_len); - -	return buf; -} - -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 tipc_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->disc_domain), -			       ntohl(args->priority))) -		return tipc_cfg_reply_error_string("unable to enable bearer"); - -	return tipc_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 tipc_cfg_reply_error_string(TIPC_CFG_TLV_ERROR); - -	if (tipc_disable_bearer((char *)TLV_DATA(req_tlv_area))) -		return tipc_cfg_reply_error_string("unable to disable bearer"); - -	return tipc_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 tipc_cfg_reply_error_string(TIPC_CFG_TLV_ERROR); - -	addr = ntohl(*(__be32 *)TLV_DATA(req_tlv_area)); -	if (addr == tipc_own_addr) -		return tipc_cfg_reply_none(); -	if (!tipc_addr_node_valid(addr)) -		return tipc_cfg_reply_error_string(TIPC_CFG_INVALID_VALUE -						   " (node address)"); -	if (tipc_own_addr) -		return tipc_cfg_reply_error_string(TIPC_CFG_NOT_SUPPORTED -						   " (cannot change node address once assigned)"); -	if (!tipc_net_start(addr)) -		return tipc_cfg_reply_none(); - -	return tipc_cfg_reply_error_string("cannot change to network mode"); -} - -static struct sk_buff *cfg_set_max_ports(void) -{ -	u32 value; - -	if (!TLV_CHECK(req_tlv_area, req_tlv_space, TIPC_TLV_UNSIGNED)) -		return tipc_cfg_reply_error_string(TIPC_CFG_TLV_ERROR); -	value = ntohl(*(__be32 *)TLV_DATA(req_tlv_area)); -	if (value == tipc_max_ports) -		return tipc_cfg_reply_none(); -	if (value < 127 || value > 65535) -		return tipc_cfg_reply_error_string(TIPC_CFG_INVALID_VALUE -						   " (max ports must be 127-65535)"); -	return tipc_cfg_reply_error_string(TIPC_CFG_NOT_SUPPORTED -		" (cannot change max ports while TIPC is active)"); -} - -static struct sk_buff *cfg_set_netid(void) -{ -	u32 value; - -	if (!TLV_CHECK(req_tlv_area, req_tlv_space, TIPC_TLV_UNSIGNED)) -		return tipc_cfg_reply_error_string(TIPC_CFG_TLV_ERROR); -	value = ntohl(*(__be32 *)TLV_DATA(req_tlv_area)); -	if (value == tipc_net_id) -		return tipc_cfg_reply_none(); -	if (value < 1 || value > 9999) -		return tipc_cfg_reply_error_string(TIPC_CFG_INVALID_VALUE -						   " (network id must be 1-9999)"); -	if (tipc_own_addr) -		return tipc_cfg_reply_error_string(TIPC_CFG_NOT_SUPPORTED -			" (cannot change network id once TIPC has joined a network)"); -	tipc_net_id = value; -	return tipc_cfg_reply_none(); -} - -struct sk_buff *tipc_cfg_do_cmd(u32 orig_node, u16 cmd, const void *request_area, -				int request_space, int reply_headroom) -{ -	struct sk_buff *rep_tlv_buf; - -	rtnl_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(in_own_node(orig_node))) { -		/* command is permitted */ -	} else { -		rep_tlv_buf = tipc_cfg_reply_error_string(TIPC_CFG_NOT_SUPPORTED -							  " (cannot be done remotely)"); -		goto exit; -	} - -	/* Call appropriate processing routine */ -	switch (cmd) { -	case TIPC_CMD_NOOP: -		rep_tlv_buf = tipc_cfg_reply_none(); -		break; -	case TIPC_CMD_GET_NODES: -		rep_tlv_buf = tipc_node_get_nodes(req_tlv_area, req_tlv_space); -		break; -	case TIPC_CMD_GET_LINKS: -		rep_tlv_buf = tipc_node_get_links(req_tlv_area, req_tlv_space); -		break; -	case TIPC_CMD_SHOW_LINK_STATS: -		rep_tlv_buf = tipc_link_cmd_show_stats(req_tlv_area, req_tlv_space); -		break; -	case TIPC_CMD_RESET_LINK_STATS: -		rep_tlv_buf = tipc_link_cmd_reset_stats(req_tlv_area, req_tlv_space); -		break; -	case TIPC_CMD_SHOW_NAME_TABLE: -		rep_tlv_buf = tipc_nametbl_get(req_tlv_area, req_tlv_space); -		break; -	case TIPC_CMD_GET_BEARER_NAMES: -		rep_tlv_buf = tipc_bearer_get_names(); -		break; -	case TIPC_CMD_GET_MEDIA_NAMES: -		rep_tlv_buf = tipc_media_get_names(); -		break; -	case TIPC_CMD_SHOW_PORTS: -		rep_tlv_buf = tipc_sk_socks_show(); -		break; -	case TIPC_CMD_SHOW_STATS: -		rep_tlv_buf = tipc_show_stats(); -		break; -	case TIPC_CMD_SET_LINK_TOL: -	case TIPC_CMD_SET_LINK_PRI: -	case TIPC_CMD_SET_LINK_WINDOW: -		rep_tlv_buf = tipc_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_MAX_PORTS: -		rep_tlv_buf = cfg_set_max_ports(); -		break; -	case TIPC_CMD_SET_NETID: -		rep_tlv_buf = cfg_set_netid(); -		break; -	case TIPC_CMD_GET_MAX_PORTS: -		rep_tlv_buf = tipc_cfg_reply_unsigned(tipc_max_ports); -		break; -	case TIPC_CMD_GET_NETID: -		rep_tlv_buf = tipc_cfg_reply_unsigned(tipc_net_id); -		break; -	case TIPC_CMD_NOT_NET_ADMIN: -		rep_tlv_buf = -			tipc_cfg_reply_error_string(TIPC_CFG_NOT_NET_ADMIN); -		break; -	case TIPC_CMD_SET_MAX_ZONES: -	case TIPC_CMD_GET_MAX_ZONES: -	case TIPC_CMD_SET_MAX_SLAVES: -	case TIPC_CMD_GET_MAX_SLAVES: -	case TIPC_CMD_SET_MAX_CLUSTERS: -	case TIPC_CMD_GET_MAX_CLUSTERS: -	case TIPC_CMD_SET_MAX_NODES: -	case TIPC_CMD_GET_MAX_NODES: -	case TIPC_CMD_SET_MAX_SUBSCR: -	case TIPC_CMD_GET_MAX_SUBSCR: -	case TIPC_CMD_SET_MAX_PUBL: -	case TIPC_CMD_GET_MAX_PUBL: -	case TIPC_CMD_SET_LOG_SIZE: -	case TIPC_CMD_SET_REMOTE_MNG: -	case TIPC_CMD_GET_REMOTE_MNG: -	case TIPC_CMD_DUMP_LOG: -		rep_tlv_buf = tipc_cfg_reply_error_string(TIPC_CFG_NOT_SUPPORTED -							  " (obsolete command)"); -		break; -	default: -		rep_tlv_buf = tipc_cfg_reply_error_string(TIPC_CFG_NOT_SUPPORTED -							  " (unknown command)"); -		break; -	} - -	WARN_ON(rep_tlv_buf->len > TLV_SPACE(ULTRA_STRING_MAX_LEN)); - -	/* Append an error message if we cannot return all requested data */ -	if (rep_tlv_buf->len == TLV_SPACE(ULTRA_STRING_MAX_LEN)) { -		if (*(rep_tlv_buf->data + ULTRA_STRING_MAX_LEN) != '\0') -			sprintf(rep_tlv_buf->data + rep_tlv_buf->len - -				sizeof(REPLY_TRUNCATED) - 1, REPLY_TRUNCATED); -	} - -	/* Return reply buffer */ -exit: -	rtnl_unlock(); -	return rep_tlv_buf; -} |