diff options
Diffstat (limited to 'src/vnet/ip/ip4_forward.c')
| -rw-r--r-- | src/vnet/ip/ip4_forward.c | 63 |
1 files changed, 38 insertions, 25 deletions
diff --git a/src/vnet/ip/ip4_forward.c b/src/vnet/ip/ip4_forward.c index 28b6203c0fb..ce2d619941c 100644 --- a/src/vnet/ip/ip4_forward.c +++ b/src/vnet/ip/ip4_forward.c @@ -545,7 +545,7 @@ ip4_add_del_interface_address_internal (vlib_main_t * vm, vec_elt (im->fib_index_by_sw_if_index, sw_if_index)); vec_add1 (addr_fib, ip4_af); - /* FIXME-LATER + /* * there is no support for adj-fib handling in the presence of overlapping * subnets on interfaces. Easy fix - disallow overlapping subnets, like * most routers do. @@ -554,31 +554,44 @@ ip4_add_del_interface_address_internal (vlib_main_t * vm, if (!is_del) { /* When adding an address check that it does not conflict - with an existing address. */ + with an existing address on any interface in this table. */ ip_interface_address_t *ia; - foreach_ip_interface_address - (&im->lookup_main, ia, sw_if_index, - 0 /* honor unnumbered */ , - ({ - ip4_address_t * x = - ip_interface_address_get_address - (&im->lookup_main, ia); - if (ip4_destination_matches_route - (im, address, x, ia->address_length) || - ip4_destination_matches_route (im, - x, - address, - address_length)) - return - clib_error_create - ("failed to add %U which conflicts with %U for interface %U", - format_ip4_address_and_length, address, - address_length, - format_ip4_address_and_length, x, - ia->address_length, - format_vnet_sw_if_index_name, vnm, - sw_if_index); - })); + vnet_sw_interface_t *sif; + + pool_foreach(sif, vnm->interface_main.sw_interfaces, + ({ + if (im->fib_index_by_sw_if_index[sw_if_index] == + im->fib_index_by_sw_if_index[sif->sw_if_index]) + { + foreach_ip_interface_address + (&im->lookup_main, ia, sif->sw_if_index, + 0 /* honor unnumbered */ , + ({ + ip4_address_t * x = + ip_interface_address_get_address + (&im->lookup_main, ia); + if (ip4_destination_matches_route + (im, address, x, ia->address_length) || + ip4_destination_matches_route (im, + x, + address, + address_length)) + { + vnm->api_errno = VNET_API_ERROR_DUPLICATE_IF_ADDRESS; + + return + clib_error_create + ("failed to add %U which conflicts with %U for interface %U", + format_ip4_address_and_length, address, + address_length, + format_ip4_address_and_length, x, + ia->address_length, + format_vnet_sw_if_index_name, vnm, + sif->sw_if_index); + } + })); + } + })); } /* *INDENT-ON* */ |