[tomoyo-users-en 731] Akari IPC signals control for bash shell

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Gabriel Borges Figuera gbf.g****@gmail*****
Wed May 20 16:23:47 JST 2020


Hello Tetsuo!

I Hope everything is fine at this hard moment,

Recently, I have been trying to develop an Akari policy but I have
encountered a problem when I try to restrict the "kill" comand from the
bash shell. If I use /bin/kill or /usr/bin/kill from command line, I can
control what happens because these programs have a self domain in
domainpolicy, but when I use the shell built-in command "kill"  It does not
have a self domain, so if the bash shell is permitted in a certain domain
it can kill every process without that explicit permission. How can I avoid
or prevent that?

I have been watching the AKARI documentation pages and I miss the "ipc
signal" directive, but in Tomoyo 1.8 It is present. And in the comparison
table between AKARI/Tomoyo seems that Akari can control IPC signals.

Is there a way to control the ipc signals sended from shell bash?

Best Regards.

Gabriel Borges.
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