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This commit I make some changes:
- The filter got mainly finished.
- Build a big node by the same tgid, and use the tgid node to
build th tree we need by bfs.
- Filt relative files, and for the files not closed, add close
time stamp according to the exit time of their pids.
- Put all the results into database.
Besides, I enlarge the buffer size of netlink connector and channels
in lintener.
TODO:
- the pivot_root syscall is used only by the initial shell(`docker
start` makes a shell), other processes of shell change their root
by changing namespace(mnt ns?), using setns syscall. So fix it.
- It's time to fix the netlink connector socket.
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This commit I made several changes:
- Use structure instead of simple bson.M(interface{}). bson.M has
some shortcomings: 1) It makes the database in chaos and hard to
read, but this's not important; 2) Some entrys may has more or
less content than others, which makes it hard to decode and filt.
So I design new data structure to encode and decode. Hopes that
there's no bugs.
- Fix the way to calculate file path. The original method is to add
all the PATH entries together, that's totally wrong! PATH entry
has several types, as it shows in "objtype". I can't find it in
the kernel src code, so what i know is just "PARENT" means the dir
the file is in, while the filename itself has the path, so we
whould ignore all "PARENT"s. When the src code is found, we should
check it again.
- Fix bugs in updating. The update function of mongodb is set to
required to has a '$' such as 'set'/'push', so when we update a
whole doc, we should use replace but not update function. And,
we should never ignore the error infomation it gives us.
Hope that there's no more bugs for this Big Change.
Now its' time to write filter as well as viewer. Best wishes with
NO BUGS!
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