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authorMatt Fleming <matt.fleming@intel.com>2013-02-01 12:02:28 +0100
committerMatt Fleming <matt.fleming@intel.com>2013-02-12 13:41:54 +0100
commitda27a24383b2b10bf6ebd0db29b325548aafecb4 (patch)
treedb48f001f62af527e832fe2c1cd302b30e794b6a /arch/cris/Kconfig
parentefivarfs: Validate filenames much more aggressively (diff)
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efivarfs: guid part of filenames are case-insensitive
It makes no sense to treat the following filenames as unique, VarName-abcdefab-abcd-abcd-abcd-abcdefabcdef VarName-ABCDEFAB-ABCD-ABCD-ABCD-ABCDEFABCDEF VarName-ABcDEfAB-ABcD-ABcD-ABcD-ABcDEfABcDEf VarName-aBcDEfAB-aBcD-aBcD-aBcD-aBcDEfaBcDEf ... etc ... since the guid will be converted into a binary representation, which has no case. Roll our own dentry operations so that we can treat the variable name part of filenames ("VarName" in the above example) as case-sensitive, but the guid portion as case-insensitive. That way, efivarfs will refuse to create the above files if any one already exists. Reported-by: Lingzhu Xiang <lxiang@redhat.com> Cc: Matthew Garrett <mjg59@srcf.ucam.org> Cc: Jeremy Kerr <jeremy.kerr@canonical.com> Cc: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Matt Fleming <matt.fleming@intel.com>
Diffstat (limited to 'arch/cris/Kconfig')
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