diff options
Diffstat (limited to 'sys/net/if_vlan.c')
| -rw-r--r-- | sys/net/if_vlan.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/sys/net/if_vlan.c b/sys/net/if_vlan.c index 22fcb7bf7c64..61000018e5a4 100644 --- a/sys/net/if_vlan.c +++ b/sys/net/if_vlan.c @@ -2336,6 +2336,18 @@ vlan_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data) error = ENOENT; break; } + + /* + * If the ifp is in a bridge, do not allow setting the device + * to a bridge; this prevents having a bridge SVI as a bridge + * member (which is not permitted). + */ + if (ifp->if_bridge != NULL && p->if_type == IFT_BRIDGE) { + if_rele(p); + error = EINVAL; + break; + } + if (vlr.vlr_proto == 0) vlr.vlr_proto = ETHERTYPE_VLAN; oldmtu = ifp->if_mtu; |