diff options
| -rw-r--r-- | sys/net/if_tun.c | 7 | ||||
| -rw-r--r-- | sys/net/if_tun.h | 4 |
2 files changed, 8 insertions, 3 deletions
diff --git a/sys/net/if_tun.c b/sys/net/if_tun.c index 0b740e5..df84d53 100644 --- a/sys/net/if_tun.c +++ b/sys/net/if_tun.c @@ -268,6 +268,11 @@ tunifioctl(ifp, cmd, data) TUNDEBUG("%s%d: destination address set\n", ifp->if_name, ifp->if_unit); break; + case SIOCSIFMTU: + ifp->if_mtu = ifr->ifr_mtu; + TUNDEBUG("%s%d: mtu set\n", + ifp->if_name, ifp->if_unit); + break; case SIOCADDMULTI: case SIOCDELMULTI: if (ifr == 0) { @@ -519,7 +524,7 @@ tunwrite(dev_t dev, struct uio *uio, int flag) TUNDEBUG("%s%d: tunwrite\n", ifp->if_name, ifp->if_unit); - if (uio->uio_resid < 0 || uio->uio_resid > TUNMTU) { + if (uio->uio_resid < 0 || uio->uio_resid > ifp->if_mtu) { TUNDEBUG("%s%d: len=%d!\n", ifp->if_name, ifp->if_unit, uio->uio_resid); return EIO; diff --git a/sys/net/if_tun.h b/sys/net/if_tun.h index c31b548..404a877 100644 --- a/sys/net/if_tun.h +++ b/sys/net/if_tun.h @@ -38,8 +38,8 @@ struct tun_softc { struct selinfo tun_wsel; /* write select (not used) */ }; -/* Maximum packet size */ -#define TUNMTU 1600 +/* Default maximum packet size */ +#define TUNMTU 1500 struct tuninfo { int baudrate; /* linespeed */ |
