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ru.nethack
- RU.NETHACK -------------------------------------------------------------------
From : Vasiliy Tomilin 2:5020/400 21 Jan 2002 16:09:44
To : Nick
Subject : Re: netbios-ns 137/udp NETBIOS Name Service
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> За что отвечает сyбж?
RFC 1001/02
Вот концептуальное описание из 1001. Подробности реализации/нюансы в 1002.
5.2. NAME SERVICE
NetBIOS resources are referenced by name. Lower-level address
information is not available to NetBIOS applications. An
application, representing a resource, registers one or more names
that it wishes to use.
The name space is flat and uses sixteen alphanumeric characters.
Names may not start with an asterisk (*).
Registration is a bid for use of a name. The bid may be for
exclusive (unique) or shared (group) ownership. Each application
contends with the other applications in real time. Implicit
permission is granted to a station when it receives no objections.
That is, a bid is made and the application waits for a period of
time. If no objections are received, the station assumes that it has
permission.
A unique name should be held by only one station at a time. However,
duplicates ("name conflicts") may arise due to errors.
All instances of a group name are equivalent.
An application referencing a name generally does not know (or care)
whether the name is registered as a unique or a group name.
An explicit name deletion function is specified, so that applications
may remove a name. Implicit name deletion occurs when a station
ceases operation. In the case of personal computers, implicit name
deletion is a frequent occurrence.
The Name Service primitives are:
1) Add Name
The requesting application wants exclusive use of the name.
2) Add Group Name
The requesting application is willing to share use of the
name with other applications.
3) Delete Name
The application no longer requires use of the name. It is
important to note that typical use of NetBIOS is among
independently-operated personal computers. A common way to
stop using a PC is to turn it off; in this case, the
graceful give-back mechanism, provided by the Delete Name
function, is not used. Because this occurs frequently, the
network service must support this behavior.
Всех благ,
ТВH
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Re: netbios-ns 137/udp NETBIOS Name Service