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Viewing changes to src/utils/ecryptfs-umount-private

  • Committer: Dustin Kirkland
  • Date: 2009-01-26 18:08:13 UTC
  • Revision ID: git-v1:1abdd21606f764382f2abc8a73abda091ace76fd
clear relevant keys on helper unmount

If the user calls the ecryptfs-umount-private helper, clear the kernel
keyring of the keys used by that private helper.

This should help assuage bug:
https://bugs.launchpad.net/ecryptfs/+bug/313812

Signed-off-by: Dustin Kirkland <kirkland@canonical.com>

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Lines of Context:
src/utils/ecryptfs-umount-private
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#!/bin/sh -e
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# This script unmounts a user's private ecryptfs folder
 
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# and clears the kernel keyring of the relevant keys
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#
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# Original by Michael Halcrow, IBM
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# Extracted to a stand-alone script by Dustin Kirkland <kirkland@canonical.com>
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/sbin/umount.ecryptfs_private
 
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out=`/sbin/umount.ecryptfs_private 2>&1`
 
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if [ -n "$out" ]; then
 
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        echo "$out"
 
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fi
 
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if echo "$out" | grep -q -v "Sessions still open"; then
 
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        for sig in `cat "$HOME/.ecryptfs/Private.sig"`; do
 
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                key_id=`keyctl show | grep "$sig$" | awk '{print $1}'`
 
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                keyctl unlink "$key_id" @u
 
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        done
 
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fi