findutils-4.2.15
Daniel J Walsh
dwalsh at redhat.com
Thu Feb 17 19:00:23 UTC 2005
Russell Coker wrote:
>On Tuesday 01 February 2005 01:48, Tim Waugh <twaugh at redhat.com> wrote:
>
>
>>I just updated findutils to 4.2.15 in devel. Please check that I
>>didn't make any mistakes porting the findutils-selinux.patch.
>>
>>
>
>I can't comment on the changes as I never tested the old version. Here are
>some suggestions about the current version:
>
>getfilecon(/proc/2/maps): Operation not supported
>
>Above is part of the output of "find / --context system_u:object_r:bin_t".
>Perhaps it would make sense that whenever find enters a new file system it
>checks whether the context is available and skips file systems of types that
>don't support the XATTR interface to labelling. We could have a config file
>which lists the supported file systems (ext2, ext3, xfs, devpts, and tmpfs at
>the moment) so that find knows what to do. Or maybe this is something that
>should be in the kernel? Another option might be to just have find give up
>on a tree when a directory gives ENOTSUP.
>
>Searching on context alone seems of little utility to me. I think it's likely
>that most times when a search is being performed the desired result will
>either be all files of a particular identity or of a particular type. For
>example I may want to find files of type bin_t to discover the full list of
>programs that can_exec(foo_t, bin_t) grants access to. The fact that I
>created some files under /usr/local/bin by just copying them there as
>administrator (and giving them the context of root:object_r:bin_t instead of
>the usual system_u:object_r:bin_t) not something that concerns me.
>
>Also saving some typing is a benefit too. When running chcon I often use the
>-t option to save typing as usually I only want to change the type and am not
>concerned about the identity.
>
>
Find has glob support to do something similar
so you can
find / --context *:bin_t
to find all bin_t files.
>The command `find . -printf "%Z %f\n"` returns the string "pipefs" instead of
>the final "t" in file contexts. Eg here's part of the output of running such
>a find command from the /var/run directory:
>system_u:object_r:xdm_var_run_pipefs gdm.pid
>
>Here's "ls -lZ" output from the same file:
>-rw-r--r-- root root system_u:object_r:xdm_var_run_t gdm.pid
>
>Once again, being able to split out identity and type would be handy, the
>-printf option has a huge number of ways of specifying atime with %A, maybe
>having %Zi for identity, %Zt for type, and %z for full context would be a
>good idea.
>
>
>
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