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jcastillo |
-----BEGIN PGP SIGNED MESSAGE-----
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First:
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HiSax is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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However, if you wish to modify the HiSax sources, please note the following:
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HiSax has passed the ITU approval test suite with ELSA Quickstep ISDN cards.
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The certification is only valid for the combination of the tested software
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version and the tested hardware. Any changes to the HiSax source code may
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therefore affect the certification.
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If you change the main files of the HiSax ISDN stack, the certification will
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become invalid. Because in most countries it is illegal to connect
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unapproved ISDN equipment to the public network, I have to guarantee that
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changes in HiSax do not affect the certification.
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In order to make a valid certification apparent to the user, I have built in
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some validation checks that are made during the make process. The HiSax main
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files are protected by md5 checksums and the md5sum file is pgp signed by
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myself:
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KeyID 1024/FF992F6D 1997/01/16 Karsten Keil
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Key fingerprint = 92 6B F7 58 EE 86 28 C8 C4 1A E6 DC 39 89 F2 AA
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Only if the checksums are OK, and the signature of the file
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"drivers/isdn/hisax/md5sums.asc" match, is the certification valid; a
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message confirming this is then displayed during the hisax init process.
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The affected files are:
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drivers/isdn/hisax/isac.c
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drivers/isdn/hisax/isdnl1.c
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drivers/isdn/hisax/isdnl2.c
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drivers/isdn/hisax/isdnl3.c
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drivers/isdn/hisax/tei.c
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drivers/isdn/hisax/callc.c
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drivers/isdn/hisax/l3dss1.c
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drivers/isdn/hisax/l3_1tr6.c
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drivers/isdn/hisax/cert.c
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drivers/isdn/hisax/elsa.c
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Please send any changes, bugfixes and patches to me rather than implementing
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them directly into the HiSax sources.
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This does not reduce your rights granted by the GNU General Public License.
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If you wish to change the sources, go ahead; but note that then the
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certification is invalid even if you use ELSA Quickstep cards.
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Here are the certification registration numbers for ELSA Quickstep cards:
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German D133361J CETECOM ICT Services GmbH 0682
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European D133362J CETECOM ICT Services GmbH 0682
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Karsten Keil
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keil@isdn4linux.de
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=nGJk
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