diff options
Diffstat (limited to 'sys/net/if.c')
| -rw-r--r-- | sys/net/if.c | 35 |
1 files changed, 34 insertions, 1 deletions
diff --git a/sys/net/if.c b/sys/net/if.c index 680bbd42215f..635be7d11334 100644 --- a/sys/net/if.c +++ b/sys/net/if.c @@ -31,7 +31,7 @@ * SUCH DAMAGE. * * @(#)if.c 8.3 (Berkeley) 1/4/94 - * $Id: if.c,v 1.65 1999/02/01 20:03:27 phk Exp $ + * $Id: if.c,v 1.66 1999/02/19 13:41:35 phk Exp $ */ #include "opt_compat.h" @@ -178,6 +178,39 @@ if_attach(ifp) TAILQ_INSERT_HEAD(&ifp->if_addrhead, ifa, ifa_link); } } + +/* + * Detach an interface, removing it from the + * list of "active" interfaces. + */ +void +if_detach(ifp) + struct ifnet *ifp; +{ + struct ifaddr *ifa; + + /* + * Remove routes and flush queues. + */ + if_down(ifp); + + /* + * Remove address from ifnet_addrs[] and maybe decrement if_index. + * Clean up all addresses. + */ + ifnet_addrs[ifp->if_index] = 0; + while (ifnet_addrs[if_index] == 0) + if_index--; + + for (ifa = TAILQ_FIRST(&ifp->if_addrhead); ifa; + ifa = TAILQ_FIRST(&ifp->if_addrhead)) { + TAILQ_REMOVE(&ifp->if_addrhead, ifa, ifa_link); + IFAFREE(ifa); + } + + TAILQ_REMOVE(&ifnet, ifp, if_link); +} + /* * Locate an interface based on a complete address. */ |