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ip6: don't flush link-local IPv6 routes (rh #587836)

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Since a link-local address should pretty much always be
assigned to an active interface, avoid flushing the routes
that allow link-local communication to work.
This commit is contained in:
Dan Williams
2010-05-04 20:24:17 -07:00
parent 1c5236029c
commit 17b49b957c
1 changed files with 19 additions and 0 deletions
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19
src/nm-system.c
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@@ -1203,6 +1203,25 @@ check_one_route (struct nl_object *object, void *user_data)
if (data->family && rtnl_route_get_family (route) != data->family)
return;
/* We don't want to flush IPv6 link-local routes that may exist on the
* the interface since the LL address and routes should normally stay
* assigned all the time.
*/
if ( (data->family == AF_INET6 || data->family == AF_UNSPEC)
&& (rtnl_route_get_family (route) == AF_INET6)) {
struct nl_addr *nl;
struct in6_addr *addr = NULL;
nl = rtnl_route_get_dst (route);
if (nl)
addr = nl_addr_get_binary_addr (nl);
if (addr) {
if (IN6_IS_ADDR_LINKLOCAL (addr) || IN6_IS_ADDR_MC_LINKLOCAL (addr))
return;
}
}
err = rtnl_route_del (nm_netlink_get_default_handle (), route, 0);
if (err < 0) {
nm_log_err (LOGD_DEVICE,