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Archive   : MSVIBM.ZIP
Filename : DIS_PKT9.DOC

File DIS_PKT.DOC 3 Nov 1991

Joe R. Doupnik
Utah State University
Logan Utah 84322
[email protected]
(801) 750-2982 voice
(801) 750-2992 fax

DIS_PKT.DOS is a "shim" to convert between an NDIS network board driver and an
application that wants to talk to a packet driver. It shares the board with
other NDIS users.

Packet-Driver-flavored applications NDIS-flavored applications
|| ||
------------- ||
| DIS_PKT | ||
------------- ||
|| ||
------------------------------------------
| main module |
| NDIS ........................ |
| board specific driver(s) |
-------------------------------------------
||
--------------------------------
| Ethernet/Token Ring board(s) |
--------------------------------
||
=================================== Ethernet/Token Ring wire


Material added to version 1.09 (since v1.07) -

o Support for using old Novell 802.3 packets on the wire while using Type
8137 packets to the application. The BYU Packet Driver Novell shell
kit requires Type 8137 packets be used by the shell. The keyword "NOVELL="
in the section [pktdrv] determines whether or not conversion occurs. If a
y is placed after the NOVELL= phrase then conversion occurs:
novell = y (case independent)
This option provides the same feature as the "-n" option of a regular
Packet Driver from the Clarkson collection.
Conversion does not occur if the right hand side is not a y, nor if the
entire line is omitted.
Conversion occurs only if the NDIS driver uses Ethernet 802.3 packets; this
also means dis_pkt provides a Packet Driver Class 1 interface to apps.

o Support for Ethernet 802.3 with 802.2 headers and Token Ring 802.5 NDIS
drivers, as Packet Driver Class 11 and 3, respectively. The NOVELL= option
does not apply to these boards. Dan Lanciani of Harvard added this part.

First sample PROTOCOL.INI file:

[protocol manager]
drivername = PROTMAN$

[pktdrv] <-- name of this driver entry
drivername = pktdrv$ <-- formal driver name
bindings = wd8003xmac <-- use your board's NDIS driver here
intvec = 0x60 <-- Packet Driver Int, 60h..7fh
chainvec = 0x66 <-- daisy chained Pkt Drvr Int, unused
novell = y <-- Optional, if present and y(es) then
convert between old Novell 802.3 pkts
on the wire and Type 8137 for the app.
Omitting this line or using any other
response turns off the conversion;
default is no conversion.

[attiso]
drivername = ATTISO$ <-- Another NDIS client
bindings = wd8003xmac <-- bound to the same harware driver
nsess = 5
ncmds = 14
use_emm = n

Western Digital EtherCard PLUS Family Adapter <-- Ethernet board
[wd8003xmac] <-- its ndis driver
drivername = MACWD$
irq = 7
ramaddress = 0xCA00
iobase = 0x280
receivebufsize = 1536 <-- make this a full Ethernet pkt

Sample section of CONFIG.SYS (StarGROUP material is not required):

device=c:\lanman\protman.sys /i:c:\lanman <-- must be first
device=c:\lanman\macwd.dos <-- WD8003E driver
device=c:\lanman\dis_pkt.dos <-- Pkt Driver (this program)
device=c:\lanman.dos\drivers\attload.dos /Y <-- StarGROUP NDIS
device=c:\lanman.dos\drivers\attiso\attiso.dos <-- StarGROUP NDIS
device=c:\qemm\loadhi.sys /r:1 e:\pctcp\ifcust.sys <-- PC/TCP stuff
device=c:\qemm\loadhi.sys /r:4 e:\pctcp\ipcust.sys <-- etc

A second, more elaborate example, with names easier to type. We start with
file PROTOCOL.INI. Note that semicolons start comment lines.

; This is a sample protocol.ini file listing three Ethernet boards:
; attcsma.dos is an AT&T StarLAN 10 EN100
; elnkii.dos is a 3Com 3C503
; wd8003.dos is a Western Digital WD8003E
; Only one board will be selected but the other two are present.

[protocol manager]
drivername = PROTMAN$

; Packet Driver protocol users tie in here
[pktdrv]
drivername = pktdrv$
bindings = attcsma
; bindings= elnkii
; bindings = wd8003
intvec = 0x60
; chainvec = 0x66 ; chaining to another Packet Driver is unused
novell = no ; do not convert packet types this time

; AT&T StarGROUP protocol stack ties in here via name ATTISO$
[attiso]
drivername = ATTISO$
bindings = attcsma
; bindings = elnkii
; bindings = wd8003
nsess = 5
ncmds = 14
use_emm = n

;Western Digital EtherCard PLUS Family Adapter, WD8003E in this case
[wd8003]
drivername = MACWD$
irq = 7
ramaddress = 0xCA00
iobase = 0x280
receivebufsize = 1536
; maxtransmits = 6
; receivebuffers = 6
; receivechains = 6

; 3Com Etherlink II, 3C503
[elnkii]
drivername = ELNKII$
ioaddress = 0x350
interrupt = 5
transceiver = onboard
maxtransmits = 12
xmitbufs = 1

; AT&T StarLAN 10 EN100
[attcsma]
drivername = ATTCSMA$
board_type = 2
irq = 2
ioaddr = 0x360
daram = 0xD000

; End of file protocol.ini

Fragment of config.sys for the second example. Note three .dos board drivers.

device=c:\system\ramdrive.sys 1024 512 128 /E
device=c:\lanman\protman.sys /i:c:\lanman.dos\drivers\star10en
device=c:\lanman\attcsma.dos
device=c:\lanman\elnkii.dos
device=c:\lanman\macwd.dos
device=c:\lanman\dis_pkt.dos
device=c:\lanman.dos\drivers\attload.dos /Y
device=c:\lanman.dos\drivers\attiso\attiso.dos
device=c:\qemm\loadhi.sys /r:1 e:\pctcp\ifcust.sys
device=c:\qemm\loadhi.sys /r:4 e:\pctcp\ipcust.sys
device=c:\qemm\loadhi.sys /r:4 c:\netdev.sys
shell=c:\command.com /p /e:800

It seems to be necessary to run NETBIND.EXE to get all this to be active.
Some Lan Manger network startup routines run Netbind implicitly.

Copyright notice and disclaimer from the beginning of the source code
file dis_pkt.asm:

; DIS_PKT.ASM - Adapter provides Packet Driver v1.09 interface over NDIS.
; Version 1.07 18 May 1991 by Joe R. Doupnik, Utah State Univ.
; Version 1.08 9 Aug 1991 by Dan Lanciani, [email protected]
; Version 1.09 3 Nov 1991 by Joe R. Doupnik, Utah State Univ.
; Copyright (C) 1988 - 1991 FTP Software, Inc.

This unmodified source file and its executable form may be used and
redistributed freely. The source may be modified, and the source or
executable versions built from the modified source may be used and
redistributed, provided that this notice and the copyright displayed by the
exectuable remain intact, and provided that the executable displays an
additional message indicating that it has been modified, and by whom.

FTP Software Inc. releases this software "as is", with no express or implied
warranty, including, but not limited to, the implied warranties of
merchantability and fitness for a particular purpose.

USE AT YOUR OWN RISK.

To build, using Microsoft MASM 5 or later, LINK 3.64 or later, and EXE2BIN:

masm dis_pkt;
link dis_pkt;
exe2bin dis_pkt.exe dis_pkt.dos
del dis_pkt.exe
del dis_pkt.obj

Here is an excerpt from the formal NDIS v2 specification document by 3Com
and Microsoft concerning what goes into the PROTOCOL.INI file.

PROTOCOL.INI

The PROTOCOL.INI file stores configuration and binding information for all the
protocol and MAC modules in the system. The file uses the same general format
as the LANMAN.INI file. It consists of a series of named sections, where the
section name is in fact the module name from a module characteristics table.
Below the bracketed module name is a set of configuration settings for the
module in name=value format. For example:

[MYNetBIOS]
Drivername = NetBIOS$
Bindings = ETHERCARD
MaxNCBs = 16
MaxSessions = 32
MaxNames = 16

The rules for PROTOCOL.INI contents are:

o Bracketed module name. Must be the name of a protocol or MAC module, e.g.
[MYNetBIOS]. This is the name of the module as defined in that module's
characteristics table. The name must be 15 characters or less (not
counting the brackets). Mixed case may be used but the Protocol Manager
will convert it to uppercase when it reads the file into memory.

o Drivername = . This parameter is required for all
device driver modules. It defines the name of the OS/2 or DOS device
driver that the module is contained in. Note that a single device driver
name may be mentioned by several sections of the PROTOCOL.INI file, if the
driver contains multiple logical modules. The Drivername parameter is the
recommended method by which a module searches for its module section in the
PROTOCOL.INI file to get its configuration parameters. This allows the
module to find all relevant module sections based on a single name
intrinisic to the module independent of the particular bracketed module
name used in the PROTOCOL.INI file. This keyword is also required for DOS
dynamic modules like TSRs or transient application modules. Although there
is no driver name instrinsically assigned to such modules it is required
that a unique name be assigned to this keyword for such modules anyway. In
this way the same search mechanism used by device drivers can be used by
dynamic DOS modules to find their relevant module sections in PROTOCOL.INI.

o Bindings = | ,, . . .
This parameter is optional for protocol modules. It is not valid for MAC
modules. If present, it is used by the protocol module to determine what
MAC modules it will ask to bind to. (In other words, changing this
parameter in the PROTOCOL.INI file can reconfigure a protocol to bind to a
different MAC.). The Bindings parameter may be omitted if the protocol
driver software is preconfigured to bind to a particular MAC, or if the
system will only contain one MAC and one static protocol module. In the
latter case (only in static mode), the Protocol Manager by default will ask
the one static protocol to bind to the one MAC.

o Other keywords and parameters. Any other keyword=value statements are
module specific. Keyword names must be 15 characters or less. They may be
mixed case but are converted to uppercase when read by the Protocol
Manager. Note that keyword names are unique within the scope of each
section and can appear within the section in any order.

o Whitespace around the equals sign is not significant, nor is trailing white
space on the line. Except for this leading and trailing white space, all
other characters of the value string are taken verbatim.

o A list of 0 or more parameters can appear to the right of the equals sign.
If there are no parameters the equals sign can be optionally omitted. A
parameter is terminated by a space, tab, comma, or semicolon. No
parameters are interpreted by the Protocol Manager.

o A parameter can either be up to a 31-bit signed numeric value or a string
of any length.

o A numeric parameter can be expressed either in decimal or hexadecimal
format. All numeric parameters must start with the characters '0' through
'9' or by a + or - followed by the '0' to'9' character. A hexadecimal
parameter must start with '0x' or '0X' and use valid hexadecimal digits. A
non-hexadecimal numeric parameter is treated as decimal integer. A
parameter not surrounded by quotes and starting with 0 to 9 or + and -
followed by 0 to 9 will be assumed to be a numeric parameter.

o A string is a parameter which either starts with a non-numeric character or
is surrounded with quotes ("...."). The string is preserved in the memory
image as it appears in PROTOCOL.INI.

o A line starting with a semicolon in column 1 is a comment and is ignored.
Blank lines are ignored too.

o Lines may be as long as required. Continuation lines are not supported.
Lines end with CR LF.

o Tabs, formfeeds, and spaces are considered to be white space.

The Protocol Manager supports an optional section with optional keywords
defined below:

[PROTMAN]
Drivername = PROTMAN$
Dynamic = YES or NO
PRIORITY = prot1, prot2, ...
Bindstatus = YES or NO

The bracketed module name can be any valid name as long as it is unique within
this PROTOCOL.INI. Drivername is required and must be assigned PROTMAN$,
identifying the section as belonging to the Protocol Manager. None of the
entries are case-sensitive.

The DYNAMIC keyword is optional. It defaults to NO if not present. If set to
NO, the Protocol Manager operates only in the static mode and does not support
dynamic protocol drivers. If set to YES, the Protocol Manager operates in the
dynamic mode and supports both static and dynamic binding.

The PRIORITY keyword is optional. If absent, then the VECTOR uses default
demultiplexing priority if multiple protocol drivers are bound to the same MAC
(see Vector Demultiplexing in Chapter 7). If present, the parameters on the
right-hand side are presumed to be a list of protocol module names, highest
priority first. The VECTOR prioritizes protocol drivers for demultiplexing
(if necessary) according to their order in the list, and packets are offered
to the first protocol driver listed first. Protocol drivers not listed are
assigned default priority AFTER those listed. It is not necessary that a
protocol driver ever bind for it to be listed here.

The BINDSTATUS keyword is optional. If absent, then the BindStatus command is
not supported by the Protocol Manager. If set to YES, then BindStatus is
supported by the Protocol Manager. The default disable condition is a memory
optimization feature primarily for DOS environments.

End of file DIS_PKT.DOC