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netconfig(5)

November 17, 2000

libtirpc1

transport-independent RPC library

libtirpc-devel

Development files for the Transport Independent RPC Library

libtirpc

Transport Independent RPC library (SunRPC replacement)

libtirpc3

transport-independent RPC library

libtirpc-common

transport-independent RPC library - common files

libtirpc-netconfig

Netconfig configuration file for TI-RPC Library

NAME

netconfig - network configuration data base

SYNOPSIS

/etc/netconfig

DESCRIPTION

The netconfig file defines a list of "transport names", describing their semantics and protocol. In
.Fx , this file is only used by the RPC library code.
Entries have the following format:
network_id semantics flags family protoname device libraries
Entries consist of the following fields:
network_id
The name of the transport described.
semantics Describes the semantics of the transport. This can be one of:
tpi_clts Connectionless transport.
tpi_cots Connection-oriented transport
tpi_cots_ord
Connection-oriented, ordered transport.
tpi_raw A raw connection.
flags This field is either blank (specified by "-"), or contains a "v", meaning visible to the getnetconfig(3) function.
family The protocol family of the transport. This is currently one of:
inet6 The IPv6 (PF_INET6) family of protocols.
inet The IPv4 (PF_INET) family of protocols.
loopback
The PF_LOCAL protocol family.
protoname
The name of the protocol used for this transport. Can currently be either udp, tcp or empty.
device This field is always empty in
.Fx .
libraries
This field is always empty in
.Fx .
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:
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  -      -       -
then using the network type udp in calls to the RPC library function (see rpc(3)) will make the code first try udp6, and then udp.
getnetconfig(3) and associated functions will parse this file and return structures of the following format:
struct netconfig {
    char *nc_netid;              /* Network ID */
    unsigned long nc_semantics;  /* Semantics (see below) */
    unsigned long nc_flag;       /* Flags (see below) */
    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 */
};

FILES

/etc/netconfig
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