/* Proxy arp vector */
ethernet_proxy_arp_t *proxy_arps;
+
+ uword wc_ip4_arp_publisher_node;
+ uword wc_ip4_arp_publisher_et;
} ethernet_arp_main_t;
static ethernet_arp_main_t ethernet_arp_main;
#define ETHERNET_ARP_ARGS_REMOVE (1<<0)
#define ETHERNET_ARP_ARGS_FLUSH (1<<1)
#define ETHERNET_ARP_ARGS_POPULATE (1<<2)
+#define ETHERNET_ARP_ARGS_WC_PUB (1<<3)
} vnet_arp_set_ip4_over_ethernet_rpc_args_t;
static const u8 vrrp_prefix[] = { 0x00, 0x00, 0x5E, 0x00, 0x01 };
{
ethernet_arp_header_t *a = va_arg (*va, ethernet_arp_header_t *);
u32 max_header_bytes = va_arg (*va, u32);
- uword indent;
+ u32 indent;
u16 l2_type, l3_type;
if (max_header_bytes != 0 && sizeof (a[0]) > max_header_bytes)
switch (adj->lookup_next_index)
{
- case IP_LOOKUP_NEXT_ARP:
case IP_LOOKUP_NEXT_GLEAN:
+ adj_glean_update_rewrite (ai);
+ break;
+ case IP_LOOKUP_NEXT_ARP:
if (NULL != e)
{
adj_nbr_walk_nh4 (sw_if_index,
}
}
-int
+static void
+arp_adj_fib_add (ethernet_arp_ip4_entry_t * e, u32 fib_index)
+{
+ fib_prefix_t pfx = {
+ .fp_len = 32,
+ .fp_proto = FIB_PROTOCOL_IP4,
+ .fp_addr.ip4 = e->ip4_address,
+ };
+
+ e->fib_entry_index =
+ fib_table_entry_path_add (fib_index, &pfx, FIB_SOURCE_ADJ,
+ FIB_ENTRY_FLAG_ATTACHED,
+ DPO_PROTO_IP4, &pfx.fp_addr,
+ e->sw_if_index, ~0, 1, NULL,
+ FIB_ROUTE_PATH_FLAG_NONE);
+ fib_table_lock (fib_index, FIB_PROTOCOL_IP4, FIB_SOURCE_ADJ);
+}
+
+static int
vnet_arp_set_ip4_over_ethernet_internal (vnet_main_t * vnm,
vnet_arp_set_ip4_over_ethernet_rpc_args_t
* args)
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_path_add (fib_index, &pfx, FIB_SOURCE_ADJ,
- FIB_ENTRY_FLAG_ATTACHED,
- DPO_PROTO_IP4, &pfx.fp_addr,
- e->sw_if_index, ~0, 1, NULL,
- FIB_ROUTE_PATH_FLAG_NONE);
+ arp_adj_fib_add (e,
+ ip4_fib_table_get_index_for_sw_if_index
+ (e->sw_if_index));
}
else
{
*/
if (0 == memcmp (e->ethernet_address,
a->ethernet, sizeof (e->ethernet_address)))
- return -1;
+ goto check_customers;
/* Update time stamp and ethernet address. */
clib_memcpy (e->ethernet_address, a->ethernet,
adj_nbr_walk_nh4 (sw_if_index, &e->ip4_address, arp_mk_complete_walk, e);
+check_customers:
/* Customer(s) waiting for this address to be resolved? */
p = hash_get (am->pending_resolutions_by_address, a->ip4.as_u32);
if (p)
/*
* we're looking for FIB entries that indicate the source
* is attached. There may be more specific non-attached
- * routes tht match the source, but these do not influence
+ * routes that match the source, but these do not influence
* whether we respond to an ARP request, i.e. they do not
* influence whether we are the correct way for the sender
* to reach us, they only affect how we reach the sender.
&arp0->ip4_over_ethernet[0]);
goto drop1;
}
+ else if (arp0->opcode ==
+ clib_host_to_net_u16 (ETHERNET_ARP_OPCODE_request) &&
+ (dst_is_local0 == 0))
+ {
+ goto drop1;
+ }
send_reply:
/* Send a reply.
return 0;
}
+/**
+ * @brief publish wildcard arp event
+ * @param sw_if_index The interface on which the ARP entires are acted
+ */
+static int
+vnet_arp_wc_publish (u32 sw_if_index, void *a_arg)
+{
+ ethernet_arp_ip4_over_ethernet_address_t *a = a_arg;
+ vnet_arp_set_ip4_over_ethernet_rpc_args_t args = {
+ .flags = ETHERNET_ARP_ARGS_WC_PUB,
+ .sw_if_index = sw_if_index,
+ .a = *a
+ };
+
+ vl_api_rpc_call_main_thread (set_ip4_over_ethernet_rpc_callback,
+ (u8 *) & args, sizeof (args));
+ return 0;
+}
+
+static void
+vnet_arp_wc_publish_internal (vnet_main_t * vnm,
+ vnet_arp_set_ip4_over_ethernet_rpc_args_t *
+ args)
+{
+ vlib_main_t *vm = vlib_get_main ();
+ ethernet_arp_main_t *am = ðernet_arp_main;
+ uword ni = am->wc_ip4_arp_publisher_node;
+ uword et = am->wc_ip4_arp_publisher_et;
+
+ if (ni == (uword) ~ 0)
+ return;
+ wc_arp_report_t *r =
+ vlib_process_signal_event_data (vm, ni, et, 1, sizeof *r);
+ r->ip4 = args->a.ip4.as_u32;
+ r->sw_if_index = args->sw_if_index;
+ memcpy (r->mac, args->a.ethernet, sizeof r->mac);
+}
+
+void
+wc_arp_set_publisher_node (uword node_index, uword event_type)
+{
+ ethernet_arp_main_t *am = ðernet_arp_main;
+ am->wc_ip4_arp_publisher_node = node_index;
+ am->wc_ip4_arp_publisher_et = event_type;
+}
+
/*
* arp_add_del_interface_address
*
}
}
+void
+arp_adj_fib_remove (ethernet_arp_ip4_entry_t * e, u32 fib_index)
+{
+ if (FIB_NODE_INDEX_INVALID != e->fib_entry_index)
+ {
+ fib_prefix_t pfx = {
+ .fp_len = 32,
+ .fp_proto = FIB_PROTOCOL_IP4,
+ .fp_addr.ip4 = e->ip4_address,
+ };
+ u32 fib_index;
+
+ fib_index = ip4_fib_table_get_index_for_sw_if_index (e->sw_if_index);
+
+ fib_table_entry_path_remove (fib_index, &pfx,
+ FIB_SOURCE_ADJ,
+ DPO_PROTO_IP4,
+ &pfx.fp_addr,
+ e->sw_if_index, ~0, 1,
+ FIB_ROUTE_PATH_FLAG_NONE);
+ fib_table_unlock (fib_index, FIB_PROTOCOL_IP4, FIB_SOURCE_ADJ);
+ }
+}
+
+static void
+arp_table_bind (ip4_main_t * im,
+ uword opaque,
+ u32 sw_if_index, u32 new_fib_index, u32 old_fib_index)
+{
+ ethernet_arp_main_t *am = ðernet_arp_main;
+ ethernet_arp_interface_t *eai;
+ ethernet_arp_ip4_entry_t *e;
+ hash_pair_t *pair;
+
+ /*
+ * the IP table that the interface is bound to has changed.
+ * reinstall all the adj fibs.
+ */
+
+ if (vec_len (am->ethernet_arp_by_sw_if_index) <= sw_if_index)
+ return;
+
+ eai = &am->ethernet_arp_by_sw_if_index[sw_if_index];
+
+ /* *INDENT-OFF* */
+ hash_foreach_pair (pair, eai->arp_entries,
+ ({
+ e = pool_elt_at_index(am->ip4_entry_pool,
+ pair->value[0]);
+ /*
+ * remove the adj-fib from the old table and add to the new
+ */
+ arp_adj_fib_remove(e, old_fib_index);
+ arp_adj_fib_add(e, new_fib_index);
+ }));
+ /* *INDENT-ON* */
+
+}
+
static clib_error_t *
ethernet_arp_init (vlib_main_t * vm)
{
am->pending_resolutions_by_address = hash_create (0, sizeof (uword));
am->mac_changes_by_address = hash_create (0, sizeof (uword));
+ am->wc_ip4_arp_publisher_node = (uword) ~ 0;
/* don't trace ARP error packets */
{
cb.function_opaque = 0;
vec_add1 (im->add_del_interface_address_callbacks, cb);
+ ip4_table_bind_callback_t cbt;
+ cbt.function = arp_table_bind;
+ cbt.function_opaque = 0;
+ vec_add1 (im->table_bind_callbacks, cbt);
+
return 0;
}
{
ethernet_arp_main_t *am = ðernet_arp_main;
- if (FIB_NODE_INDEX_INVALID != e->fib_entry_index)
- {
- fib_prefix_t pfx = {
- .fp_len = 32,
- .fp_proto = FIB_PROTOCOL_IP4,
- .fp_addr.ip4 = e->ip4_address,
- };
- u32 fib_index;
-
- fib_index = ip4_fib_table_get_index_for_sw_if_index (e->sw_if_index);
-
- fib_table_entry_path_remove (fib_index, &pfx,
- FIB_SOURCE_ADJ,
- DPO_PROTO_IP4,
- &pfx.fp_addr,
- e->sw_if_index, ~0, 1,
- FIB_ROUTE_PATH_FLAG_NONE);
- }
+ arp_adj_fib_remove (e,
+ ip4_fib_table_get_index_for_sw_if_index
+ (e->sw_if_index));
hash_unset (eai->arp_entries, e->ip4_address.as_u32);
pool_put (am->ip4_entry_pool, e);
}
* does in response to interface events. unset is only done
* by the control plane.
*/
- if (e->flags & ETHERNET_ARP_IP4_ENTRY_FLAG_DYNAMIC)
+ if (e->flags & ETHERNET_ARP_IP4_ENTRY_FLAG_STATIC)
+ {
+ e->flags &= ETHERNET_ARP_IP4_ENTRY_FLAG_DYNAMIC;
+ }
+ else if (e->flags & ETHERNET_ARP_IP4_ENTRY_FLAG_DYNAMIC)
{
arp_entry_free (eai, e);
}
vnet_arp_flush_ip4_over_ethernet_internal (vm, a);
else if (a->flags & ETHERNET_ARP_ARGS_POPULATE)
vnet_arp_populate_ip4_over_ethernet_internal (vm, a);
+ else if (a->flags & ETHERNET_ARP_ARGS_WC_PUB)
+ vnet_arp_wc_publish_internal (vm, a);
else
vnet_arp_set_ip4_over_ethernet_internal (vm, a);
}
/* Check if anyone want ARP request events for L2 BDs */
{
- pending_resolution_t *mc;
ethernet_arp_main_t *am = ðernet_arp_main;
- uword *p = hash_get (am->mac_changes_by_address, 0);
- if (p)
- {
- u32 next_index = p[0];
- while (next_index != (u32) ~ 0)
- {
- int (*fp) (u32, u8 *, u32, u32);
- int rv = 1;
- mc = pool_elt_at_index (am->mac_changes, next_index);
- fp = mc->data_callback;
- /* Call the callback, return 1 to suppress dup events */
- if (fp)
- rv = (*fp) (mc->data,
- arp0->ip4_over_ethernet[0].ethernet,
- sw_if_index0,
- arp0->ip4_over_ethernet[0].ip4.as_u32);
- /* Signal the resolver process */
- if (rv == 0)
- vlib_process_signal_event (vm, mc->node_index,
- mc->type_opaque, mc->data);
- next_index = mc->next_index;
- }
- }
+ if (am->wc_ip4_arp_publisher_node != (uword) ~ 0)
+ vnet_arp_wc_publish (sw_if_index0, &arp0->ip4_over_ethernet[0]);
}
/* lookup BD mac_by_ip4 hash table for MAC entry */
{
ethernet_arp_main_t *am = ðernet_arp_main;
ethernet_arp_ip4_entry_t *e;
+ adj_index_t ai;
/* *INDENT-OFF* */
pool_foreach (e, am->ip4_entry_pool,
change_arp_mac (sw_if_index, e);
}));
/* *INDENT-ON* */
+
+ ai = adj_glean_get (FIB_PROTOCOL_IP4, sw_if_index);
+
+ if (ADJ_INDEX_INVALID != ai)
+ adj_glean_update_rewrite (ai);
}
-void static
-send_ip4_garp (vlib_main_t * vm, vnet_hw_interface_t * hi)
+void
+send_ip4_garp (vlib_main_t * vm, const vnet_hw_interface_t * hi)
+{
+ ip4_main_t *i4m = &ip4_main;
+ ip4_address_t *ip4_addr =
+ ip4_interface_first_address (i4m, hi->sw_if_index, 0);
+
+ send_ip4_garp_w_addr (vm, ip4_addr, hi);
+}
+
+void
+send_ip4_garp_w_addr (vlib_main_t * vm,
+ const ip4_address_t * ip4_addr,
+ const vnet_hw_interface_t * hi)
{
ip4_main_t *i4m = &ip4_main;
u32 sw_if_index = hi->sw_if_index;
- ip4_address_t *ip4_addr = ip4_interface_first_address (i4m, sw_if_index, 0);
if (ip4_addr)
{
}
}
-static vlib_node_registration_t send_garp_na_proc_node;
-
-static uword
-send_garp_na_process (vlib_main_t * vm,
- vlib_node_runtime_t * rt, vlib_frame_t * f)
-{
- vnet_main_t *vnm = vnet_get_main ();
- uword event_type, *event_data = 0;
-
- send_garp_na_process_node_index = send_garp_na_proc_node.index;
-
- while (1)
- {
- vlib_process_wait_for_event (vm);
- event_type = vlib_process_get_events (vm, &event_data);
- if ((event_type == SEND_GARP_NA) && (vec_len (event_data) >= 1))
- {
- u32 hw_if_index = event_data[0];
- vnet_hw_interface_t *hi = vnet_get_hw_interface (vnm, hw_if_index);
- send_ip4_garp (vm, hi);
- send_ip6_na (vm, hi);
- }
- vec_reset_length (event_data);
- }
- return 0;
-}
-
-
-/* *INDENT-OFF* */
-VLIB_REGISTER_NODE (send_garp_na_proc_node, static) = {
- .function = send_garp_na_process,
- .type = VLIB_NODE_TYPE_PROCESS,
- .name = "send-garp-na-process",
-};
-/* *INDENT-ON* */
-
/*
* fd.io coding-style-patch-verification: ON
*
Code Review / vpp.git / blobdiff