diff options
Diffstat (limited to 'sys/kern/kern_mib.c')
| -rw-r--r-- | sys/kern/kern_mib.c | 11 |
1 files changed, 9 insertions, 2 deletions
diff --git a/sys/kern/kern_mib.c b/sys/kern/kern_mib.c index 506ce86..c93cc6f 100644 --- a/sys/kern/kern_mib.c +++ b/sys/kern/kern_mib.c @@ -145,6 +145,11 @@ static char machine_arch[] = MACHINE_ARCH; SYSCTL_STRING(_hw, HW_MACHINE_ARCH, machine_arch, CTLFLAG_RD, machine_arch, 0, "System architecture"); +static int jailcansethostname=1; +SYSCTL_INT(_kern, KERN_JAILCANSETHOSTNAME, jailcansethostname, + CTLFLAG_RW, &jailcansethostname, 0, + "Jail can set its hostname"); + char hostname[MAXHOSTNAMELEN]; static int @@ -152,11 +157,13 @@ sysctl_hostname SYSCTL_HANDLER_ARGS { int error; - if (req->p->p_prison) + if (req->p->p_prison) { + if (!jailcansethostname) + return(EPERM); error = sysctl_handle_string(oidp, req->p->p_prison->pr_host, sizeof req->p->p_prison->pr_host, req); - else + } else error = sysctl_handle_string(oidp, hostname, sizeof hostname, req); return (error); |
