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author | jamie <jamie@FreeBSD.org> | 2009-05-27 14:11:23 +0000 |
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committer | jamie <jamie@FreeBSD.org> | 2009-05-27 14:11:23 +0000 |
commit | a013e0afcbb44052a86a7977277d669d8883b7e7 (patch) | |
tree | b7f782d79e61a1bd80655a068684cb0fd9f39922 /sys/kern/kern_exit.c | |
parent | 6e53147404a7f4fb4173694bc812d9d23efd9fef (diff) | |
download | FreeBSD-src-a013e0afcbb44052a86a7977277d669d8883b7e7.zip FreeBSD-src-a013e0afcbb44052a86a7977277d669d8883b7e7.tar.gz |
Add hierarchical jails. A jail may further virtualize its environment
by creating a child jail, which is visible to that jail and to any
parent jails. Child jails may be restricted more than their parents,
but never less. Jail names reflect this hierarchy, being MIB-style
dot-separated strings.
Every thread now points to a jail, the default being prison0, which
contains information about the physical system. Prison0's root
directory is the same as rootvnode; its hostname is the same as the
global hostname, and its securelevel replaces the global securelevel.
Note that the variable "securelevel" has actually gone away, which
should not cause any problems for code that properly uses
securelevel_gt() and securelevel_ge().
Some jail-related permissions that were kept in global variables and
set via sysctls are now per-jail settings. The sysctls still exist for
backward compatibility, used only by the now-deprecated jail(2) system
call.
Approved by: bz (mentor)
Diffstat (limited to 'sys/kern/kern_exit.c')
-rw-r--r-- | sys/kern/kern_exit.c | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/sys/kern/kern_exit.c b/sys/kern/kern_exit.c index 89b92c6..575fe9b 100644 --- a/sys/kern/kern_exit.c +++ b/sys/kern/kern_exit.c @@ -455,9 +455,8 @@ exit1(struct thread *td, int rv) p->p_xstat = rv; p->p_xthread = td; - /* In case we are jailed tell the prison that we are gone. */ - if (jailed(p->p_ucred)) - prison_proc_free(p->p_ucred->cr_prison); + /* Tell the prison that we are gone. */ + prison_proc_free(p->p_ucred->cr_prison); #ifdef KDTRACE_HOOKS /* |