133 lines
3.3 KiB
Groff
133 lines
3.3 KiB
Groff
.\" $NetBSD: netconfig.5,v 1.2 2000/11/08 13:18:28 lukem Exp $
|
|
.\" $NetBSD: netconfig.5,v 1.2 2000/11/08 13:18:28 lukem Exp $
|
|
.\" $FreeBSD$
|
|
.Dd November 17, 2000
|
|
.Dt NETCONFIG 5
|
|
.Os
|
|
.Sh NAME
|
|
.Nm netconfig
|
|
.Nd network configuration data base
|
|
.Sh SYNOPSIS
|
|
.Pa /etc/netconfig
|
|
.Sh DESCRIPTION
|
|
The
|
|
.Nm
|
|
file defines a list of
|
|
.Dq transport names ,
|
|
describing their semantics and protocol.
|
|
In
|
|
.Fx ,
|
|
this file is only used by the RPC library code.
|
|
.Pp
|
|
Entries have the following format:
|
|
.Pp
|
|
.Ar network_id semantics flags family protoname device libraries
|
|
.Pp
|
|
Entries consist of the following fields:
|
|
.Bl -tag -width network_id
|
|
.It Ar network_id
|
|
The name of the transport described.
|
|
.It Ar semantics
|
|
Describes the semantics of the transport.
|
|
This can be one of:
|
|
.Bl -tag -width tpi_cots_ord -offset indent
|
|
.It Sy tpi_clts
|
|
Connectionless transport.
|
|
.It Sy tpi_cots
|
|
Connection-oriented transport
|
|
.It Sy tpi_cots_ord
|
|
Connection-oriented, ordered transport.
|
|
.It Sy tpi_raw
|
|
A raw connection.
|
|
.El
|
|
.It Ar flags
|
|
This field is either blank (specified by
|
|
.Dq Li - ) ,
|
|
or contains one or more of the following characters:
|
|
.Bl -tag -width b -offset indent
|
|
.It Sy b
|
|
The network represented by this entry is broadcast capable.
|
|
This flag is meaningless in
|
|
.Fx .
|
|
.It Sy v
|
|
The entry may be returned by the
|
|
.Xr getnetpath 3
|
|
function.
|
|
.El
|
|
.It Ar family
|
|
The protocol family of the transport.
|
|
This is currently one of:
|
|
.Bl -tag -width loopback -offset indent
|
|
.It Sy inet6
|
|
The IPv6
|
|
.Pq Dv PF_INET6
|
|
family of protocols.
|
|
.It Sy inet
|
|
The IPv4
|
|
.Pq Dv PF_INET
|
|
family of protocols.
|
|
.It Sy loopback
|
|
The
|
|
.Dv PF_LOCAL
|
|
protocol family.
|
|
.El
|
|
.It Ar protoname
|
|
The name of the protocol used for this transport.
|
|
Can currently be either
|
|
.Sy udp ,
|
|
.Sy tcp
|
|
or empty.
|
|
.It Ar device
|
|
This field is always empty in
|
|
.Fx .
|
|
.It Ar libraries
|
|
This field is always empty in
|
|
.Fx .
|
|
.El
|
|
.Pp
|
|
The order of entries in this file will determine which transport will
|
|
be preferred by the RPC library code, given a match on a specified
|
|
network type.
|
|
For example, if a sample network config file would look like this:
|
|
.Bd -literal -offset indent
|
|
udp6 tpi_clts v inet6 udp - -
|
|
tcp6 tpi_cots_ord v inet6 tcp - -
|
|
udp tpi_clts v inet udp - -
|
|
tcp tpi_cots_ord v inet tcp - -
|
|
rawip tpi_raw - inet - - -
|
|
local tpi_cots_ord - loopback - - -
|
|
.Ed
|
|
.Pp
|
|
then using the network type
|
|
.Sy udp
|
|
in calls to the RPC library function (see
|
|
.Xr rpc 3 )
|
|
will make the code first try
|
|
.Sy udp6 ,
|
|
and then
|
|
.Sy udp .
|
|
.Pp
|
|
.Xr getnetconfig 3
|
|
and associated functions will parse this file and return structures of
|
|
the following format:
|
|
.Bd -literal
|
|
struct netconfig {
|
|
char *nc_netid; /* Network ID */
|
|
unsigned long nc_semantics; /* Semantics */
|
|
unsigned long nc_flag; /* Flags */
|
|
char *nc_protofmly; /* Protocol family */
|
|
char *nc_proto; /* Protocol name */
|
|
char *nc_device; /* Network device pathname (unused) */
|
|
unsigned long nc_nlookups; /* Number of lookup libs (unused) */
|
|
char **nc_lookups; /* Names of the libraries (unused) */
|
|
unsigned long nc_unused[9]; /* reserved */
|
|
};
|
|
.Ed
|
|
.Sh FILES
|
|
.Bl -tag -width /etc/netconfig -compact
|
|
.It Pa /etc/netconfig
|
|
.El
|
|
.Sh SEE ALSO
|
|
.Xr getnetconfig 3 ,
|
|
.Xr getnetpath 3
|