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linux-next/include/linux/tipc_config.h
Allan Stephens 50d3e6399a tipc: Correct misnamed references to neighbor discovery domain 
Renames items that are improperly labelled as "network scope" items
(which are represented by simple integer values) rather than "network
domain" items (which are represented by <Z.C.N>-type network addresses).
This change is purely cosmetic, and does not affect the operation of TIPC.

Signed-off-by: Allan Stephens <Allan.Stephens@windriver.com>
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2011-03-13 16:35:18 -04:00

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/*
* include/linux/tipc_config.h: Include file for TIPC configuration interface
*
* Copyright (c) 2003-2006, Ericsson AB
* Copyright (c) 2005-2007, 2010-2011, 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.
*/
#ifndef _LINUX_TIPC_CONFIG_H_
#define _LINUX_TIPC_CONFIG_H_
#include <linux/types.h>
#include <linux/string.h>
#include <asm/byteorder.h>
/*
* Configuration
*
* All configuration management messaging involves sending a request message
* to the TIPC configuration service on a node, which sends a reply message
* back. (In the future multi-message replies may be supported.)
*
* Both request and reply messages consist of a transport header and payload.
* The transport header contains info about the desired operation;
* the payload consists of zero or more type/length/value (TLV) items
* which specify parameters or results for the operation.
*
* For many operations, the request and reply messages have a fixed number
* of TLVs (usually zero or one); however, some reply messages may return
* a variable number of TLVs. A failed request is denoted by the presence
* of an "error string" TLV in the reply message instead of the TLV(s) the
* reply should contain if the request succeeds.
*/
/*
* Public commands:
* May be issued by any process.
* Accepted by own node, or by remote node only if remote management enabled.
*/
#define TIPC_CMD_NOOP 0x0000 /* tx none, rx none */
#define TIPC_CMD_GET_NODES 0x0001 /* tx net_addr, rx node_info(s) */
#define TIPC_CMD_GET_MEDIA_NAMES 0x0002 /* tx none, rx media_name(s) */
#define TIPC_CMD_GET_BEARER_NAMES 0x0003 /* tx none, rx bearer_name(s) */
#define TIPC_CMD_GET_LINKS 0x0004 /* tx net_addr, rx link_info(s) */
#define TIPC_CMD_SHOW_NAME_TABLE 0x0005 /* tx name_tbl_query, rx ultra_string */
#define TIPC_CMD_SHOW_PORTS 0x0006 /* tx none, rx ultra_string */
#define TIPC_CMD_SHOW_LINK_STATS 0x000B /* tx link_name, rx ultra_string */
#define TIPC_CMD_SHOW_STATS 0x000F /* tx unsigned, rx ultra_string */
/*
* Protected commands:
* May only be issued by "network administration capable" process.
* Accepted by own node, or by remote node only if remote management enabled
* and this node is zone manager.
*/
#define TIPC_CMD_GET_REMOTE_MNG 0x4003 /* tx none, rx unsigned */
#define TIPC_CMD_GET_MAX_PORTS 0x4004 /* tx none, rx unsigned */
#define TIPC_CMD_GET_MAX_PUBL 0x4005 /* tx none, rx unsigned */
#define TIPC_CMD_GET_MAX_SUBSCR 0x4006 /* tx none, rx unsigned */
#define TIPC_CMD_GET_MAX_ZONES 0x4007 /* obsoleted */
#define TIPC_CMD_GET_MAX_CLUSTERS 0x4008 /* obsoleted */
#define TIPC_CMD_GET_MAX_NODES 0x4009 /* obsoleted */
#define TIPC_CMD_GET_MAX_SLAVES 0x400A /* obsoleted */
#define TIPC_CMD_GET_NETID 0x400B /* tx none, rx unsigned */
#define TIPC_CMD_ENABLE_BEARER 0x4101 /* tx bearer_config, rx none */
#define TIPC_CMD_DISABLE_BEARER 0x4102 /* tx bearer_name, rx none */
#define TIPC_CMD_SET_LINK_TOL 0x4107 /* tx link_config, rx none */
#define TIPC_CMD_SET_LINK_PRI 0x4108 /* tx link_config, rx none */
#define TIPC_CMD_SET_LINK_WINDOW 0x4109 /* tx link_config, rx none */
#define TIPC_CMD_SET_LOG_SIZE 0x410A /* tx unsigned, rx none */
#define TIPC_CMD_DUMP_LOG 0x410B /* tx none, rx ultra_string */
#define TIPC_CMD_RESET_LINK_STATS 0x410C /* tx link_name, rx none */
/*
* Private commands:
* May only be issued by "network administration capable" process.
* Accepted by own node only; cannot be used on a remote node.
*/
#define TIPC_CMD_SET_NODE_ADDR 0x8001 /* tx net_addr, rx none */
#define TIPC_CMD_SET_REMOTE_MNG 0x8003 /* tx unsigned, rx none */
#define TIPC_CMD_SET_MAX_PORTS 0x8004 /* tx unsigned, rx none */
#define TIPC_CMD_SET_MAX_PUBL 0x8005 /* tx unsigned, rx none */
#define TIPC_CMD_SET_MAX_SUBSCR 0x8006 /* tx unsigned, rx none */
#define TIPC_CMD_SET_MAX_ZONES 0x8007 /* obsoleted */
#define TIPC_CMD_SET_MAX_CLUSTERS 0x8008 /* obsoleted */
#define TIPC_CMD_SET_MAX_NODES 0x8009 /* obsoleted */
#define TIPC_CMD_SET_MAX_SLAVES 0x800A /* obsoleted */
#define TIPC_CMD_SET_NETID 0x800B /* tx unsigned, rx none */
/*
* Reserved commands:
* May not be issued by any process.
* Used internally by TIPC.
*/
#define TIPC_CMD_NOT_NET_ADMIN 0xC001 /* tx none, rx none */
/*
* TLV types defined for TIPC
*/
#define TIPC_TLV_NONE 0 /* no TLV present */
#define TIPC_TLV_VOID 1 /* empty TLV (0 data bytes)*/
#define TIPC_TLV_UNSIGNED 2 /* 32-bit integer */
#define TIPC_TLV_STRING 3 /* char[128] (max) */
#define TIPC_TLV_LARGE_STRING 4 /* char[2048] (max) */
#define TIPC_TLV_ULTRA_STRING 5 /* char[32768] (max) */
#define TIPC_TLV_ERROR_STRING 16 /* char[128] containing "error code" */
#define TIPC_TLV_NET_ADDR 17 /* 32-bit integer denoting <Z.C.N> */
#define TIPC_TLV_MEDIA_NAME 18 /* char[TIPC_MAX_MEDIA_NAME] */
#define TIPC_TLV_BEARER_NAME 19 /* char[TIPC_MAX_BEARER_NAME] */
#define TIPC_TLV_LINK_NAME 20 /* char[TIPC_MAX_LINK_NAME] */
#define TIPC_TLV_NODE_INFO 21 /* struct tipc_node_info */
#define TIPC_TLV_LINK_INFO 22 /* struct tipc_link_info */
#define TIPC_TLV_BEARER_CONFIG 23 /* struct tipc_bearer_config */
#define TIPC_TLV_LINK_CONFIG 24 /* struct tipc_link_config */
#define TIPC_TLV_NAME_TBL_QUERY 25 /* struct tipc_name_table_query */
#define TIPC_TLV_PORT_REF 26 /* 32-bit port reference */
/*
* Maximum sizes of TIPC bearer-related names (including terminating NUL)
*/
#define TIPC_MAX_MEDIA_NAME 16 /* format = media */
#define TIPC_MAX_IF_NAME 16 /* format = interface */
#define TIPC_MAX_BEARER_NAME 32 /* format = media:interface */
#define TIPC_MAX_LINK_NAME 60 /* format = Z.C.N:interface-Z.C.N:interface */
/*
* Link priority limits (min, default, max, media default)
*/
#define TIPC_MIN_LINK_PRI 0
#define TIPC_DEF_LINK_PRI 10
#define TIPC_MAX_LINK_PRI 31
#define TIPC_MEDIA_LINK_PRI (TIPC_MAX_LINK_PRI + 1)
/*
* Link tolerance limits (min, default, max), in ms
*/
#define TIPC_MIN_LINK_TOL 50
#define TIPC_DEF_LINK_TOL 1500
#define TIPC_MAX_LINK_TOL 30000
#if (TIPC_MIN_LINK_TOL < 16)
#error "TIPC_MIN_LINK_TOL is too small (abort limit may be NaN)"
#endif
/*
* Link window limits (min, default, max), in packets
*/
#define TIPC_MIN_LINK_WIN 16
#define TIPC_DEF_LINK_WIN 50
#define TIPC_MAX_LINK_WIN 150
struct tipc_node_info {
__be32 addr; /* network address of node */
__be32 up; /* 0=down, 1= up */
};
struct tipc_link_info {
__be32 dest; /* network address of peer node */
__be32 up; /* 0=down, 1=up */
char str[TIPC_MAX_LINK_NAME]; /* link name */
};
struct tipc_bearer_config {
__be32 priority; /* Range [1,31]. Override per link */
__be32 disc_domain; /* <Z.C.N> describing desired nodes */
char name[TIPC_MAX_BEARER_NAME];
};
struct tipc_link_config {
__be32 value;
char name[TIPC_MAX_LINK_NAME];
};
#define TIPC_NTQ_ALLTYPES 0x80000000
struct tipc_name_table_query {
__be32 depth; /* 1:type, 2:+name info, 3:+port info, 4+:+debug info */
__be32 type; /* {t,l,u} info ignored if high bit of "depth" is set */
__be32 lowbound; /* (i.e. displays all entries of name table) */
__be32 upbound;
};
/*
* The error string TLV is a null-terminated string describing the cause
* of the request failure. To simplify error processing (and to save space)
* the first character of the string can be a special error code character
* (lying by the range 0x80 to 0xFF) which represents a pre-defined reason.
*/
#define TIPC_CFG_TLV_ERROR "\x80" /* request contains incorrect TLV(s) */
#define TIPC_CFG_NOT_NET_ADMIN "\x81" /* must be network administrator */
#define TIPC_CFG_NOT_ZONE_MSTR "\x82" /* must be zone master */
#define TIPC_CFG_NO_REMOTE "\x83" /* remote management not enabled */
#define TIPC_CFG_NOT_SUPPORTED "\x84" /* request is not supported by TIPC */
#define TIPC_CFG_INVALID_VALUE "\x85" /* request has invalid argument value */
/*
* A TLV consists of a descriptor, followed by the TLV value.
* TLV descriptor fields are stored in network byte order;
* TLV values must also be stored in network byte order (where applicable).
* TLV descriptors must be aligned to addresses which are multiple of 4,
* so up to 3 bytes of padding may exist at the end of the TLV value area.
* There must not be any padding between the TLV descriptor and its value.
*/
struct tlv_desc {
__be16 tlv_len; /* TLV length (descriptor + value) */
__be16 tlv_type; /* TLV identifier */
};
#define TLV_ALIGNTO 4
#define TLV_ALIGN(datalen) (((datalen)+(TLV_ALIGNTO-1)) & ~(TLV_ALIGNTO-1))
#define TLV_LENGTH(datalen) (sizeof(struct tlv_desc) + (datalen))
#define TLV_SPACE(datalen) (TLV_ALIGN(TLV_LENGTH(datalen)))
#define TLV_DATA(tlv) ((void *)((char *)(tlv) + TLV_LENGTH(0)))
static inline int TLV_OK(const void *tlv, __u16 space)
{
/*
* Would also like to check that "tlv" is a multiple of 4,
* but don't know how to do this in a portable way.
* - Tried doing (!(tlv & (TLV_ALIGNTO-1))), but GCC compiler
* won't allow binary "&" with a pointer.
* - Tried casting "tlv" to integer type, but causes warning about size
* mismatch when pointer is bigger than chosen type (int, long, ...).
*/
return (space >= TLV_SPACE(0)) &&
(ntohs(((struct tlv_desc *)tlv)->tlv_len) <= space);
}
static inline int TLV_CHECK(const void *tlv, __u16 space, __u16 exp_type)
{
return TLV_OK(tlv, space) &&
(ntohs(((struct tlv_desc *)tlv)->tlv_type) == exp_type);
}
static inline int TLV_SET(void *tlv, __u16 type, void *data, __u16 len)
{
struct tlv_desc *tlv_ptr;
int tlv_len;
tlv_len = TLV_LENGTH(len);
tlv_ptr = (struct tlv_desc *)tlv;
tlv_ptr->tlv_type = htons(type);
tlv_ptr->tlv_len = htons(tlv_len);
if (len && data)
memcpy(TLV_DATA(tlv_ptr), data, tlv_len);
return TLV_SPACE(len);
}
/*
* A TLV list descriptor simplifies processing of messages
* containing multiple TLVs.
*/
struct tlv_list_desc {
struct tlv_desc *tlv_ptr; /* ptr to current TLV */
__u32 tlv_space; /* # bytes from curr TLV to list end */
};
static inline void TLV_LIST_INIT(struct tlv_list_desc *list,
void *data, __u32 space)
{
list->tlv_ptr = (struct tlv_desc *)data;
list->tlv_space = space;
}
static inline int TLV_LIST_EMPTY(struct tlv_list_desc *list)
{
return (list->tlv_space == 0);
}
static inline int TLV_LIST_CHECK(struct tlv_list_desc *list, __u16 exp_type)
{
return TLV_CHECK(list->tlv_ptr, list->tlv_space, exp_type);
}
static inline void *TLV_LIST_DATA(struct tlv_list_desc *list)
{
return TLV_DATA(list->tlv_ptr);
}
static inline void TLV_LIST_STEP(struct tlv_list_desc *list)
{
__u16 tlv_space = TLV_ALIGN(ntohs(list->tlv_ptr->tlv_len));
list->tlv_ptr = (struct tlv_desc *)((char *)list->tlv_ptr + tlv_space);
list->tlv_space -= tlv_space;
}
/*
* Configuration messages exchanged via NETLINK_GENERIC use the following
* family id, name, version and command.
*/
#define TIPC_GENL_NAME "TIPC"
#define TIPC_GENL_VERSION 0x1
#define TIPC_GENL_CMD 0x1
/*
* TIPC specific header used in NETLINK_GENERIC requests.
*/
struct tipc_genlmsghdr {
__u32 dest; /* Destination address */
__u16 cmd; /* Command */
__u16 reserved; /* Unused */
};
#define TIPC_GENL_HDRLEN NLMSG_ALIGN(sizeof(struct tipc_genlmsghdr))
/*
* Configuration messages exchanged via TIPC sockets use the TIPC configuration
* message header, which is defined below. This structure is analogous
* to the Netlink message header, but fields are stored in network byte order
* and no padding is permitted between the header and the message data
* that follows.
*/
struct tipc_cfg_msg_hdr {
__be32 tcm_len; /* Message length (including header) */
__be16 tcm_type; /* Command type */
__be16 tcm_flags; /* Additional flags */
char tcm_reserved[8]; /* Unused */
};
#define TCM_F_REQUEST 0x1 /* Flag: Request message */
#define TCM_F_MORE 0x2 /* Flag: Message to be continued */
#define TCM_ALIGN(datalen) (((datalen)+3) & ~3)
#define TCM_LENGTH(datalen) (sizeof(struct tipc_cfg_msg_hdr) + datalen)
#define TCM_SPACE(datalen) (TCM_ALIGN(TCM_LENGTH(datalen)))
#define TCM_DATA(tcm_hdr) ((void *)((char *)(tcm_hdr) + TCM_LENGTH(0)))
static inline int TCM_SET(void *msg, __u16 cmd, __u16 flags,
void *data, __u16 data_len)
{
struct tipc_cfg_msg_hdr *tcm_hdr;
int msg_len;
msg_len = TCM_LENGTH(data_len);
tcm_hdr = (struct tipc_cfg_msg_hdr *)msg;
tcm_hdr->tcm_len = htonl(msg_len);
tcm_hdr->tcm_type = htons(cmd);
tcm_hdr->tcm_flags = htons(flags);
if (data_len && data)
memcpy(TCM_DATA(msg), data, data_len);
return TCM_SPACE(data_len);
}
#endif
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