diff options
| author | Andrew J. Schorr <ajschorr@alumni.princeton.edu> | 2006-05-21 04:04:49 +0000 |
|---|---|---|
| committer | Andrew J. Schorr <ajschorr@alumni.princeton.edu> | 2006-05-21 04:04:49 +0000 |
| commit | 9c37851eac4e75cda515761cae7c63309add30ea (patch) | |
| tree | 3fcf98573c83f117f1e0219fcab8e160af70e56a /zebra/connected.c | |
| parent | 0f38dc4d4729b562551f8f53e7343f5a53b2dbf5 (diff) | |
[interface configuration] Try to avoid losing address info after shutdown.
2006-05-21 Andrew J. Schorr <ajschorr@alumni.princeton.edu>
* if.h: (struct connected) Document the meaning of the
ZEBRA_IFC_REAL and ZEBRA_IFC_CONFIGURED flags.
* connected.c: (connected_withdraw) Do not delete the connected
address if the ZEBRA_IFC_CONFIGURED flag is set.
(connected_add_ipv4,connected_add_ipv6) Before calling
connected_withdraw, unset the ZEBRA_IFC_CONFIGURED flag
on the superseded connected structure.
Diffstat (limited to 'zebra/connected.c')
| -rw-r--r-- | zebra/connected.c | 17 |
1 files changed, 13 insertions, 4 deletions
diff --git a/zebra/connected.c b/zebra/connected.c index 39f47805..37aa456a 100644 --- a/zebra/connected.c +++ b/zebra/connected.c @@ -60,8 +60,11 @@ connected_withdraw (struct connected *ifc) UNSET_FLAG (ifc->conf, ZEBRA_IFC_REAL); } - listnode_delete (ifc->ifp->connected, ifc); - connected_free (ifc); + if (!CHECK_FLAG (ifc->conf, ZEBRA_IFC_CONFIGURED)) + { + listnode_delete (ifc->ifp->connected, ifc); + connected_free (ifc); + } } static void @@ -227,7 +230,10 @@ connected_add_ipv4 (struct interface *ifp, int flags, struct in_addr *addr, if ((current = connected_check (ifp, (struct prefix *) ifc->address))) { if (CHECK_FLAG(current->conf, ZEBRA_IFC_CONFIGURED)) - SET_FLAG(ifc->conf, ZEBRA_IFC_CONFIGURED); + { + SET_FLAG(ifc->conf, ZEBRA_IFC_CONFIGURED); + UNSET_FLAG(current->conf, ZEBRA_IFC_CONFIGURED); + } connected_withdraw (current); /* implicit withdraw - freebsd does this */ } @@ -370,7 +376,10 @@ connected_add_ipv6 (struct interface *ifp, struct in6_addr *addr, if ((current = connected_check (ifp, (struct prefix *) ifc->address))) { if (CHECK_FLAG(current->conf, ZEBRA_IFC_CONFIGURED)) - SET_FLAG(ifc->conf, ZEBRA_IFC_CONFIGURED); + { + SET_FLAG(ifc->conf, ZEBRA_IFC_CONFIGURED); + UNSET_FLAG(current->conf, ZEBRA_IFC_CONFIGURED); + } connected_withdraw (current); /* implicit update of existing address */ } |