Extended comment on why we consider a partition relabel request of "0" to
be a no-op request, and why this might have to change if we want to allow leaving a partition someday. Obtained from: TrustedBSD Project MFC after: 3 days
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2020-12-20 02:59:44 +00:00
svn path=/head/; revision=184402
@ -114,7 +114,13 @@ partition_cred_check_relabel(struct ucred *cred, struct label *newlabel)
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error = 0;
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/* Treat "0" as a no-op request. */
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/*
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* Treat "0" as a no-op request because it reflects an unset
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* partition label. If we ever want to support switching back to an
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* unpartitioned state for a process, we'll need to differentiate the
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* "not in a partition" and "no partition defined during internalize"
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* conditions.
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*/
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if (SLOT(newlabel) != 0) {
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/*
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* Require BSD privilege in order to change the partition.
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