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Added sysctl security.jail.jailed.

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It returns 1 is process is inside of jail and 0 if it is not.
Information if we are in jail or not is not a secret, there is plenty of
ways to discover it. Many people are using own hack to check this and
this will be a legal way from now on.

It will be great if our starting scripts will take advantage of this sysctl
to allow clean "boot" inside jail.

Approved by:	rwatson, scottl (mentor)
This commit is contained in:
Pawel Jakub Dawidek 2004-02-19 14:29:14 +00:00
parent f6739b1ddc
commit 461167c289
1 changed files with 13 additions and 0 deletions
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13
sys/kern/kern_jail.c
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@ -490,3 +490,16 @@ sysctl_jail_list(SYSCTL_HANDLER_ARGS)
SYSCTL_OID(_security_jail, OID_AUTO, list, CTLTYPE_STRUCT | CTLFLAG_RD,
NULL, 0, sysctl_jail_list, "S", "List of active jails");
static int
sysctl_jail_jailed(SYSCTL_HANDLER_ARGS)
{
int error, injail;
injail = jailed(req->td->td_ucred);
error = SYSCTL_OUT(req, &injail, sizeof(injail));
return (error);
}
SYSCTL_PROC(_security_jail, OID_AUTO, jailed, CTLTYPE_INT | CTLFLAG_RD,
NULL, 0, sysctl_jail_jailed, "I", "Process in jail?");