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[Xen-devel] execve() in reboot.c ?
| To: | xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxx> |
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| Subject: | [Xen-devel] execve() in reboot.c ? |
| From: | aq <aquynh@xxxxxxxxx> |
| Date: | Mon, 25 Jul 2005 17:53:15 +0900 |
| Delivery-date: | Mon, 25 Jul 2005 08:51:48 +0000 |
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| Reply-to: | aq <aquynh@xxxxxxxxx> |
| Sender: | xen-devel-bounces@xxxxxxxxxxxxxxxxxxx |
Hello,
Domain kernel has arch/xen/kernel/reboot.c, which executes shutdown
and halt on request. But one problem is that we have the path and
command options fixed in the kernel, like this:
static char *restart_argv[] = { "/sbin/shutdown", "-r", "now", NULL };
static char *poweroff_argv[] = { "/sbin/halt", "-p", NULL };
That is kind of violating the rule: kernel should never enforce the
policy to the user. We can see the problem if for example domU uses
busybox instead of sysvinit: busybox doesnt support "halt -p", so "xm
shutdown" cannot shutdown the domU.
Should we care enough to fix this problem?
regards,
aq
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