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| -rw-r--r-- | man/netconfig.5 | 123 |
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diff --git a/man/netconfig.5 b/man/netconfig.5 new file mode 100644 index 0000000..e8dcbb2 --- /dev/null +++ b/man/netconfig.5 @@ -0,0 +1,123 @@ +.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 a +.Dq Li v , +meaning visible to the +.Xr getnetconfig 3 +function. +.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 (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 */ +}; +.Ed +.Sh FILES +.Bl -tag -width /etc/netconfig -compact +.It Pa /etc/netconfig +.El +.Sh SEE ALSO +.Xr getnetconfig 3 , +.Xr getnetpath 3 |