diff options
Diffstat (limited to 'sys/net/if_tun.c')
| -rw-r--r-- | sys/net/if_tun.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/sys/net/if_tun.c b/sys/net/if_tun.c index caff2d4..8d16b7d 100644 --- a/sys/net/if_tun.c +++ b/sys/net/if_tun.c @@ -173,6 +173,7 @@ tunopen(dev, flag, mode, p) tp = &tunctl[unit]; if (tp->tun_flags & TUN_OPEN) return EBUSY; + tp->tun_pid = p->p_pid; ifp = &tp->tun_if; tp->tun_flags |= TUN_OPEN; TUNDEBUG("%s%d: open\n", ifp->if_name, ifp->if_unit); @@ -196,6 +197,7 @@ tunclose(dev, foo, bar, p) struct mbuf *m; tp->tun_flags &= ~TUN_OPEN; + tp->tun_pid = 0; /* * junk all pending output @@ -276,11 +278,19 @@ tunifioctl(ifp, cmd, data) u_long cmd; caddr_t data; { - register struct ifreq *ifr = (struct ifreq *)data; + struct ifreq *ifr = (struct ifreq *)data; + struct tun_softc *tp = &tunctl[ifp->if_unit]; + struct ifstat *ifs; int error = 0, s; s = splimp(); switch(cmd) { + case SIOCGIFSTATUS: + ifs = (struct ifstat *)data; + if (tp->tun_pid) + sprintf(ifs->ascii + strlen(ifs->ascii), + "\tOpened by PID %d\n", tp->tun_pid); + return(0); case SIOCSIFADDR: tuninit(ifp->if_unit); TUNDEBUG("%s%d: address set\n", |
