Protogate Freeway 3112 Guia de Instalação descarregar pdf (Página 22)

22 DC 900-1325I

Freeway Server-Resident Application (SRA) Programmer Guide

1.2.4 Message Filtering SRA

The MSGMUX software on the Freeway server has an additional feature that allows an

SRA to intercept packets that are exchanged between the client application and the ICP

protocol software. The purpose of this is to allow an SRA to do data filtering or format

translation on the Freeway server instead of having the client application perform this

additional task. Each Freeway server delivered by Protogate comes with an example fil-

ter SRA on the flash or hard drive. The filter SRA is described in detail in Chapter 6.

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Server-Resident Application 1
Programmer Guide 1
Contents 3
6 DC 900-1325I 6
List of Figures 7
8 DC 900-1325I 8
Purpose of Document 9
Intended Audience 9
Required Equipment 9
Hardware Support 10
UNIX Programming Support 12
UNIX Network Support 12
Revision History 13
Customer Support 14
Introduction 15
DC 900-1325I 17 17
1: Introduction 17
1.2.1 Basic SRA Configuration 18
DC 900-1325I 19 19
20 DC 900-1325I 20
1.2.4 Message Filtering SRA 22
Software Development 23
2.1.1 Freeway Disk Partitions 24
2.2.1 Example Filter SRA 27
2.2.2 Loopback Test Programs 28
2.4 Running the SRA 34
2.5 Customizing the SRA 36
SESS_TBL_ENTRY structure 37
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Interfacing to DLI/TSI and 43
Protocol Software 43
3.1.1 Source Files 44
DC 900-1325I 45 45
46 DC 900-1325I 46
3.1.2 Binary Files 47
/usr/local/freeway/cli 48
3.1.3 Log and Trace Files 49
3.2.2 Set Buffer Size 52
3.2.3 Enable Link 52
3.2.4 Local Acks 52
3.2.5 Optional Arguments 53
./dliupdate 55
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SRA Design Tips and 57
Restrictions 57
4.1.2 TSI Configuration 58
4.1.3 File Management 58
4.2 Updating Files 59
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4.2.3 CDROM Updates 61
4.3 Message Logging 64
4.3.2 Syslog 65
4.4 Miscellaneous Items 66
4.4.3 Access to ICP Links 69
4.4.4 Stopping the SRA 69
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72 DC 900-1325I 72
Interfacing with the SRA 73
5.2 Socket Interfaces 74
5.3 NFS Mount 75
/etc/fstab file by 76
5.4 Web Browser Interface 77
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LAN Message Filtering 79
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6.1 msgmux Filter Hook 81
6.2 SRA Filter Functions 82
TSI header 83
Freeway header 83
ICP header 83
Protocol header 83
Protocol data 83
6.4 Filter Restrictions 84
MaxBufSize param 85
Filter_From_WAN) 86
DC 900-1325I 89 89
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DC 900-1325I 91 91
92 DC 900-1325I 92
Customer Report Form 93
Protogate, Inc 94
Customer Service 94
San Diego, CA 92128 94

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