1 -----BEGIN PGP SIGNED MESSAGE-----
2
3 First:
4
5 HiSax is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published by
7 the Free Software Foundation; either version 2 of the License, or
8 (at your option) any later version.
9
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU General Public License for more details.
14
15 However, if you wish to modify the HiSax sources, please note the following:
16
17 HiSax has passed the ITU approval test suite with ELSA Quickstep ISDN cards
18 and Eicon Technology Diva 2.01 PCI card.
19 The certification is only valid for the combination of the tested software
20 version and the tested hardware. Any changes to the HiSax source code may
21 therefore affect the certification.
22
23 If you change the main files of the HiSax ISDN stack, the certification will
24 become invalid. Because in most countries it is illegal to connect
25 unapproved ISDN equipment to the public network, I have to guarantee that
26 changes in HiSax do not affect the certification.
27
28 In order to make a valid certification apparent to the user, I have built in
29 some validation checks that are made during the make process. The HiSax main
30 files are protected by md5 checksums and the md5sum file is pgp signed by
31 myself:
32
33 KeyID 1024/FF992F6D 1997/01/16 Karsten Keil <kkeil@suse.de>
34 Key fingerprint = 92 6B F7 58 EE 86 28 C8 C4 1A E6 DC 39 89 F2 AA
35
36 Only if the checksums are OK, and the signature of the file
37 "drivers/isdn/hisax/md5sums.asc" match, is the certification valid; a
38 message confirming this is then displayed during the hisax init process.
39
40 The affected files are:
41
42 drivers/isdn/hisax/isac.c
43 drivers/isdn/hisax/isdnl1.c
44 drivers/isdn/hisax/isdnl2.c
45 drivers/isdn/hisax/isdnl3.c
46 drivers/isdn/hisax/tei.c
47 drivers/isdn/hisax/callc.c
48 drivers/isdn/hisax/l3dss1.c
49 drivers/isdn/hisax/l3_1tr6.c
50 drivers/isdn/hisax/cert.c
51 drivers/isdn/hisax/elsa.c
52 drivers/isdn/hisax/diva.c
53
54 Please send any changes, bugfixes and patches to me rather than implementing
55 them directly into the HiSax sources.
56
57 This does not reduce your rights granted by the GNU General Public License.
58 If you wish to change the sources, go ahead; but note that then the
59 certification is invalid even if you use one of the approved cards.
60
61 Here are the certification registration numbers for ELSA Quickstep cards:
62 German D133361J CETECOM ICT Services GmbH 0682
63 European D133362J CETECOM ICT Services GmbH 0682
64
65
66 Karsten Keil
67 keil@isdn4linux.de
68
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