>It seems, hcfpcimodem-1.10full.tar.gz from
>http://www.linuxant.com/drivers/hcf/full/downloads.php
>also uses GPL\0 trick.
>
>Patch is obviously not tested (and I'm not sure name is right, got it from
>Ubuntu forums and tarball filename),
>
>Does someone know internal contact so we can weed out all names and
>blacklist them in bulk?
Could not we introduce some compile-time magic that makes sure no extra
NULs are present? Like...
Consider
MODULE_LICENSE("GPL\0foobar");
generating an extra symbol
static const __rodata int __module_license_length = sizeof("GPL\0foobar");
And in the module loader, check:
if(strcmp(__module_license, "GPL") == 0 &&
__module_license_length == sizeof("GPL"))
{
allow;
}
That should weed out all those pesky GPL-override attempts, without needing to
blacklist every single module. After all, HSF (or whoever else is blacklisted)
could just change their module's name from hsfmodem.ko to hsf_modem.ko, for
example.
linux/license.h could look like this:
<<<
#ifndef __LICENSE_H
#define __LICENSE_H
#define strcmpexact(given, required, length) \
(strcmp((given), (required)) == 0 && (length) == sizeof(required))
static inline int license_is_gpl_compatible(const char *license, int len)
{
return strcmpexact(license, "GPL", len) ||
strcmpexact(license, "GPL v2", len) ||
strcmpexact(license, "GPL and additional rights", len) ||
strcmpexact(license, "Dual BSD/GPL", len) ||
strcmpexact(license, "Dual MIT/GPL", len) ||
strcmpexact(license, "Dual MPL/GPL", len);
}
#undef strcmpexact
#endif
>>>
-`J'
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