Smack: fix behavior of smack_inode_listsecurity

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Security operation ->inode_listsecurity is used for generating list of
available extended attributes for syscall listxattr. Currently it's used
only in nfs4 or if filesystem doesn't provide i_op->listxattr.

The list is the set of NULL-terminated names, one after the other.
This method must include zero byte at the and into result.

Also this function must return length even if string does not fit into
output buffer or it is NULL, see similar method in selinux and man listxattr.

Signed-off-by: Konstantin Khlebnikov <k.khlebnikov@samsung.com>

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Konstantin Khlebnikov 2014-08-07 20:52:33 +04:00 • committed by Casey Schaufler

parent 478d085524

commit fd5c9d230d

1 changed files with 4 additions and 5 deletions

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security/smack/smack_lsm.c

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