diff options
Diffstat (limited to 'src/vnet/ethernet/arp.c')
| -rw-r--r-- | src/vnet/ethernet/arp.c | 61 |
1 files changed, 36 insertions, 25 deletions
diff --git a/src/vnet/ethernet/arp.c b/src/vnet/ethernet/arp.c index 222415b0aa3..d8ae84433e7 100644 --- a/src/vnet/ethernet/arp.c +++ b/src/vnet/ethernet/arp.c @@ -100,6 +100,7 @@ typedef struct u32 sw_if_index; ethernet_arp_ip4_over_ethernet_address_t a; int is_static; + int is_no_fib_entry; int flags; #define ETHERNET_ARP_ARGS_REMOVE (1<<0) #define ETHERNET_ARP_ARGS_FLUSH (1<<1) @@ -254,6 +255,9 @@ format_ethernet_arp_ip4_entry (u8 * s, va_list * va) if (e->flags & ETHERNET_ARP_IP4_ENTRY_FLAG_DYNAMIC) flags = format (flags, "D"); + if (e->flags & ETHERNET_ARP_IP4_ENTRY_FLAG_NO_FIB_ENTRY) + flags = format (flags, "N"); + s = format (s, "%=12U%=16U%=6s%=20U%=24U", format_vlib_cpu_time, vnm->vlib_main, e->cpu_time_last_updated, format_ip4_address, &e->ip4_address, @@ -525,6 +529,7 @@ vnet_arp_set_ip4_over_ethernet_internal (vnet_main_t * vnm, ethernet_arp_interface_t *arp_int; int is_static = args->is_static; u32 sw_if_index = args->sw_if_index; + int is_no_fib_entry = args->is_no_fib_entry; vec_validate (am->ethernet_arp_by_sw_if_index, sw_if_index); @@ -546,16 +551,6 @@ vnet_arp_set_ip4_over_ethernet_internal (vnet_main_t * vnm, if (make_new_arp_cache_entry) { - fib_prefix_t pfx = { - .fp_len = 32, - .fp_proto = FIB_PROTOCOL_IP4, - .fp_addr = { - .ip4 = a->ip4, - } - , - }; - u32 fib_index; - pool_get (am->ip4_entry_pool, e); if (NULL == arp_int->arp_entries) @@ -570,17 +565,25 @@ vnet_arp_set_ip4_over_ethernet_internal (vnet_main_t * vnm, clib_memcpy (e->ethernet_address, a->ethernet, sizeof (e->ethernet_address)); - fib_index = ip4_fib_table_get_index_for_sw_if_index (e->sw_if_index); - e->fib_entry_index = - fib_table_entry_update_one_path (fib_index, - &pfx, - FIB_SOURCE_ADJ, - FIB_ENTRY_FLAG_ATTACHED, - FIB_PROTOCOL_IP4, - &pfx.fp_addr, - e->sw_if_index, - ~0, - 1, NULL, FIB_ROUTE_PATH_FLAG_NONE); + if (!is_no_fib_entry) + { + fib_prefix_t pfx = { + .fp_len = 32, + .fp_proto = FIB_PROTOCOL_IP4, + .fp_addr.ip4 = a->ip4, + }; + u32 fib_index; + + fib_index = + ip4_fib_table_get_index_for_sw_if_index (e->sw_if_index); + e->fib_entry_index = + fib_table_entry_update_one_path (fib_index, &pfx, FIB_SOURCE_ADJ, + FIB_ENTRY_FLAG_ATTACHED, + FIB_PROTOCOL_IP4, &pfx.fp_addr, + e->sw_if_index, ~0, 1, NULL, + FIB_ROUTE_PATH_FLAG_NONE); + e->flags |= ETHERNET_ARP_IP4_ENTRY_FLAG_NO_FIB_ENTRY; + } } else { @@ -1142,7 +1145,7 @@ arp_input (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame) vnet_arp_set_ip4_over_ethernet (vnm, sw_if_index0, &arp0->ip4_over_ethernet[0], - 0 /* is_static */ ); + 0 /* is_static */ , 0); error0 = ETHERNET_ARP_ERROR_l3_src_address_learned; } @@ -1658,6 +1661,8 @@ arp_entry_free (ethernet_arp_interface_t * eai, ethernet_arp_ip4_entry_t * e) { ethernet_arp_main_t *am = ðernet_arp_main; + /* it's safe to delete the ADJ source on the FIB entry, even if it + * was added */ fib_table_entry_delete_index (e->fib_entry_index, FIB_SOURCE_ADJ); hash_unset (eai->arp_entries, e->ip4_address.as_u32); pool_put (am->ip4_entry_pool, e); @@ -1828,13 +1833,15 @@ increment_ip4_and_mac_address (ethernet_arp_ip4_over_ethernet_address_t * a) int vnet_arp_set_ip4_over_ethernet (vnet_main_t * vnm, - u32 sw_if_index, void *a_arg, int is_static) + u32 sw_if_index, void *a_arg, + int is_static, int is_no_fib_entry) { ethernet_arp_ip4_over_ethernet_address_t *a = a_arg; vnet_arp_set_ip4_over_ethernet_rpc_args_t args; args.sw_if_index = sw_if_index; args.is_static = is_static; + args.is_no_fib_entry = is_no_fib_entry; args.flags = 0; clib_memcpy (&args.a, a, sizeof (*a)); @@ -1931,6 +1938,7 @@ ip_arp_add_del_command_fn (vlib_main_t * vm, u32 fib_index = 0; u32 fib_id; int is_static = 0; + int is_no_fib_entry = 0; int is_proxy = 0; while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT) @@ -1948,6 +1956,9 @@ ip_arp_add_del_command_fn (vlib_main_t * vm, else if (unformat (input, "static")) is_static = 1; + else if (unformat (input, "no-fib-entry")) + is_no_fib_entry = 1; + else if (unformat (input, "count %d", &count)) ; @@ -1991,7 +2002,7 @@ ip_arp_add_del_command_fn (vlib_main_t * vm, 1 /* type */ , 0 /* data */ ); vnet_arp_set_ip4_over_ethernet - (vnm, sw_if_index, &addr, is_static); + (vnm, sw_if_index, &addr, is_static, is_no_fib_entry); vlib_process_wait_for_event (vm); event_type = vlib_process_get_events (vm, &event_data); @@ -2046,7 +2057,7 @@ ip_arp_add_del_command_fn (vlib_main_t * vm, VLIB_CLI_COMMAND (ip_arp_add_del_command, static) = { .path = "set ip arp", .short_help = - "set ip arp [del] <intfc> <ip-address> <mac-address> [static] [count <count>] [fib-id <fib-id>] [proxy <lo-addr> - <hi-addr>]", + "set ip arp [del] <intfc> <ip-address> <mac-address> [static] [no-fib-entry] [count <count>] [fib-id <fib-id>] [proxy <lo-addr> - <hi-addr>]", .function = ip_arp_add_del_command_fn, }; /* *INDENT-ON* */ |