runcon -l s0:`/tmp/test.pl 630`-s0:`/tmp/test.pl 1023` id
The above command fails with error "File too large". It seems that for full
support of ranges with the pessimal combination of categories we could have
no more than about 700 categories.
open("/selinux/context", O_RDWR) = 3
write(3, "unconfined_u:unconfined_r:unconfi"..., 4088) = -1 EFBIG (File too
large)
Above are the relevant lines from strace output. I'm running Debian kernel
2.6.18. I expect that a single page is used by the kernel to store the data
written to /selinux/context.
Below is the contents of /tmp/test.pl.
#!/usr/bin/perl
for($i=1; $i < $ARGV[0]; $i +=2)
{
print "c$i,";
}
print "c1023\n";
NB I don't have any good reason for wanting to do this. I just wondered if I
could break anything.
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