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[Dazuko-devel] 2.0.5-pre1 posted

From: John Ogness
Subject: [Dazuko-devel] 2.0.5-pre1 posted
Date: Sun, 28 Nov 2004 14:23:06 +0100
User-agent: Mozilla Thunderbird 0.9 (X11/20041114)


I have just posted Dazuko 2.0.5-pre1. Aside from supporting the new changes to the LSM interface for Linux 2.6.10, it also includes many of the FreeBSD features ported to Linux 2.2/2.4. These include dup() and dup2() support and handling the "link problem" issue.

With dup/dup2 support, this means that events such as:

echo "Hello, world!" > test.txt

will now be correctly detected (with OPEN and CLOSE events). The "link problem" is as follows:

- Dazuko is watching /tmp/
- /tmp/file1 is a link to an unwatched file (for example, /var/file2)
- when /tmp/file1 was open/closed, Dazuko did not notice (because it was actually /var/file2 that was modified)

This problem has been fixed for FreeBSD 4/5 (since 2.0.4) and Linux 2.2/2.4 (as of this pre-release) but still exists for Linux 2.6 and Linux/RSBAC.

Something else that is making me crazy is the list of open files. There are files that are being opened, but Dazuko does not see when they are closed. This causes a "hash-list leak" in Dazuko, which over time makes Dazuko very slow. This has already been observed and reported by some users. This problem exists for Linux 2.2/2.4 and FreeBSD 4/5. I have a couple ideas about what might be going on, but I need to sit down and just work through it.

John Ogness

Dazuko Maintainer

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