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diff --git a/share/doc/iso/wiscman/iso.4f b/share/doc/iso/wiscman/iso.4f new file mode 100644 index 0000000..5e7ca88 --- /dev/null +++ b/share/doc/iso/wiscman/iso.4f @@ -0,0 +1,87 @@ +.TH ISO 4F "9 December 1988" +.ds ]W Wisconsin ARGO 1.0 +.UC 4 +.SH NAME +iso \- ISO protocol family +.SH SYNOPSIS +.B #include <sys/types.h> +.br +.B #include <netargo/iso.h> +.SH DESCRIPTION +The ISO protocol family is a collection of protocols +that uses the ISO address format. +The ISO family provides protocol support for the +SOCK_SEQPACKET abstraction through the TP protocol (ISO 8073), +and for the SOCK_RAW abstraction +by providing direct access (for debugging) to the +CLNP (ISO 8473) network layer protocol. +.SH ADDRESSING +ISO addresses are based upon ISO 8348/AD2, +"Addendum to the Network Service Definition Covering Network Layer Addressing." +.PP +Sockets bound to the OSI protocol family use +the following address structure: +.sp 1 +.nf +._f +struct sockaddr_iso { + short siso_family; + u_short siso_tsuffix; + struct iso_addr siso_addr; +}; +.sp 1 +.fi +.PP +This fields of this structure are: +.TP 10 +\fIsiso_family:\fR +Identifies the domain: AF_ISO or AF_INET. +.TP 10 +\fIsiso_tsuffix:\fR +The transport part of the address, described below. +.TP 10 +\fIsiso_addr:\fR +The network part of the address, described below. +.SS TRANSPORT ADDRESSING +.PP +The above structure describes a simple form of +ISO \fItransport\fR addresses. +An ISO transport address is similar to an Internet address in that +it contains a network-address portion and a portion that the +transport layer uses to multiplex its services among clients. +In the Internet domain, this portion of the address is called a \fIport\fR. +In the ISO domain, this is called a \fItransport selector\fR +(also known at one time as a \fItransport suffix\fR). +While ports are always 16 bits, +transport selectors may be +of (almost) arbitrary size. +ARGO supports two forms of transport selectors: +"normal" or 16-bit selectors, and +"extended" selectors, or selectors that may be from 1-64 bytes +in length. +The default mode of operation is to use 16-bit transport selectors. +These addresses can be represented with the above structure. +When transport selectors of any other size are used, the transport +selector is kept in a separate structure. +See the manual page \fItp(4p)\fR. +.SS NETWORK ADDRESSING +.PP +ISO network addresses are limited to 20 bytes in length. +ISO network addresses can take any format. +ARGO 1.0 supports three formats. +See \fIisodir(3)\fR and \fIisodir(5)\fR. +.SH PROTOCOLS +The ARGO 1.0 implementation of the +ISO protocol family comprises +the Connectionless-Mode Network Protocol (CLNP), +and the Transport Protocol (TP), classes 4 and 0, +and X.25. +TP is used to support the SOCK_SEQPACKET +abstraction. +A raw interface to CLNP is available +by creating an ISO socket of type SOCK_RAW. +This is used for CLNP debugging only. +.SH SEE ALSO +tp(4P), cons(4p), clnp(4P), isodir(3), iso(4f), isodir(5), +"The ARGO 1.0 Kernel Programmer's Guide", +"Installing ARGO 1.0 on Academic Operating Systems 4.3 Release 2" |
