diff options
Diffstat (limited to 'sys/netnatm/natm.c')
| -rw-r--r-- | sys/netnatm/natm.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/sys/netnatm/natm.c b/sys/netnatm/natm.c index 681da9c..c611650 100644 --- a/sys/netnatm/natm.c +++ b/sys/netnatm/natm.c @@ -339,6 +339,21 @@ natm_usr_control(struct socket *so, u_long cmd, caddr_t arg, npcb = (struct natmpcb *)so->so_pcb; KASSERT(npcb != NULL, ("natm_usr_control: npcb == NULL")); + switch (cmd) { + case SIOCSIFADDR: + case SIOCSIFBRDADDR: + case SIOCSIFDSTADDR: + case SIOCSIFNETMASK: + /* + * Although we should pass any non-ATM ioctl requests + * down to driver, we filter some legacy INET requests. + * Drivers trust SIOCSIFADDR et al to come from an already + * privileged layer, and do not perform any credentials + * checks or input validation. + */ + return (EINVAL); + } + if (ifp == NULL || ifp->if_ioctl == NULL) return (EOPNOTSUPP); return ((*ifp->if_ioctl)(ifp, cmd, arg)); |
