*/
#include <vnet/ip-neighbor/ip4_neighbor.h>
+#include <vnet/ip-neighbor/ip_neighbor.api_enum.h>
#include <vnet/ethernet/ethernet.h>
+#include <vnet/util/throttle.h>
+#include <vnet/fib/fib_sas.h>
+#include <vnet/ip/ip_sas.h>
+
+/** ARP throttling */
+static throttle_t arp_throttle;
+
+VLIB_REGISTER_LOG_CLASS (ip4_neighbor_log, static) = {
+ .class_name = "ip4",
+ .subclass_name = "neighbor",
+};
+
+#define log_debug(fmt, ...) \
+ vlib_log_debug (ip4_neighbor_log.class, fmt, __VA_ARGS__)
void
-ip4_neighbor_probe_dst (const ip_adjacency_t * adj, const ip4_address_t * dst)
+ip4_neighbor_probe_dst (u32 sw_if_index, u32 thread_index,
+ const ip4_address_t *dst)
{
- ip_interface_address_t *ia;
- ip4_address_t *src;
+ ip4_address_t src;
+ adj_index_t ai;
- src = ip4_interface_address_matching_destination
- (&ip4_main,
- &adj->sub_type.nbr.next_hop.ip4, adj->rewrite_header.sw_if_index, &ia);
- if (!src)
- return;
+ /* any glean will do, it's just for the rewrite */
+ ai = adj_glean_get (FIB_PROTOCOL_IP4, sw_if_index, NULL);
- ip4_neighbor_probe (vlib_get_main (), vnet_get_main (), adj, src, dst);
+ if (ADJ_INDEX_INVALID != ai &&
+ (fib_sas4_get (sw_if_index, dst, &src) ||
+ ip4_sas_by_sw_if_index (sw_if_index, dst, &src)))
+ ip4_neighbor_probe (vlib_get_main (),
+ vnet_get_main (), adj_get (ai), &src, dst);
}
void
-ip4_neighbor_advertise (vlib_main_t * vm,
- vnet_main_t * vnm,
- u32 sw_if_index, const ip4_address_t * addr)
+ip4_neighbor_advertise (vlib_main_t *vm, vnet_main_t *vnm, u32 sw_if_index,
+ u32 thread_index, const ip4_address_t *addr)
{
vnet_hw_interface_t *hi = vnet_get_sup_hw_interface (vnm, sw_if_index);
ip4_main_t *i4m = &ip4_main;
u8 *rewrite, rewrite_len;
+ ip4_address_t tmp;
if (NULL == addr)
{
- ip4_main_t *i4m = &ip4_main;
- addr = ip4_interface_first_address (i4m, sw_if_index, 0);
+ if (fib_sas4_get (sw_if_index, NULL, &tmp) ||
+ ip4_sas_by_sw_if_index (sw_if_index, NULL, &tmp))
+ addr = &tmp;
}
if (addr)
{
- clib_warning ("Sending GARP for IP4 address %U on sw_if_idex %d",
- format_ip4_address, addr, sw_if_index);
+ log_debug ("Sending GARP for IP4 address %U on sw_if_idex %d",
+ format_ip4_address, addr, sw_if_index);
/* Form GARP packet for output - Gratuitous ARP is an ARP request packet
where the interface IP/MAC pair is used for both source and request
to_next[0] = bi;
f->n_vectors = 1;
vlib_put_frame_to_node (vm, hi->output_node_index, f);
+
+ vlib_increment_simple_counter (
+ &ip_neighbor_counters[AF_IP4].ipnc[VLIB_TX][IP_NEIGHBOR_CTR_GRAT],
+ thread_index, sw_if_index, 1);
}
}
vlib_frame_t * frame, int is_glean)
{
vnet_main_t *vnm = vnet_get_main ();
- ip4_main_t *im = &ip4_main;
- ip_lookup_main_t *lm = &im->lookup_main;
u32 *from, *to_next_drop;
uword n_left_from, n_left_to_next_drop, next_index;
u32 thread_index = vm->thread_index;
if (node->flags & VLIB_NODE_FLAG_TRACE)
ip4_forward_next_trace (vm, node, frame, VLIB_TX);
- seed = throttle_seed (&im->arp_throttle, thread_index, vlib_time_now (vm));
+ seed = throttle_seed (&arp_throttle, thread_index, vlib_time_now (vm));
from = vlib_frame_vector_args (frame);
n_left_from = frame->n_vectors;
/* resolve the packet's destination */
ip4_header_t *ip0 = vlib_buffer_get_current (p0);
resolve0 = ip0->dst_address;
- src0 = adj0->sub_type.glean.receive_addr.ip4;
}
+ else
+ /* resolve the incomplete adj */
+ resolve0 = adj0->sub_type.nbr.next_hop.ip4;
+
+ if (is_glean && adj0->sub_type.glean.rx_pfx.fp_len)
+ /* the glean is for a connected, local prefix */
+ src0 = adj0->sub_type.glean.rx_pfx.fp_addr.ip4;
else
{
- /* resolve the incomplete adj */
- resolve0 = adj0->sub_type.nbr.next_hop.ip4;
/* Src IP address in ARP header. */
- if (ip4_src_address_for_packet (lm, sw_if_index0, &src0))
+ if (!fib_sas4_get (sw_if_index0, &resolve0, &src0) &&
+ !ip4_sas_by_sw_if_index (sw_if_index0, &resolve0, &src0))
{
/* No source address available */
- p0->error = node->errors[IP4_ARP_ERROR_NO_SOURCE_ADDRESS];
+ p0->error =
+ node->errors[IP4_NEIGHBOR_ERROR_NO_SOURCE_ADDRESS];
continue;
}
}
r0 = (u64) resolve0.data_u32 << 32;
r0 |= sw_if_index0;
- if (throttle_check (&im->arp_throttle, thread_index, r0, seed))
+ if (throttle_check (&arp_throttle, thread_index, r0, seed))
{
- p0->error = node->errors[IP4_ARP_ERROR_THROTTLED];
+ p0->error = node->errors[IP4_NEIGHBOR_ERROR_THROTTLED];
continue;
}
*/
if (IP_LOOKUP_NEXT_REWRITE == adj0->lookup_next_index)
{
- p0->error = node->errors[IP4_ARP_ERROR_RESOLVED];
+ p0->error = node->errors[IP4_NEIGHBOR_ERROR_RESOLVED];
continue;
}
if ((is_glean && adj0->lookup_next_index != IP_LOOKUP_NEXT_GLEAN)
|| (!is_glean && adj0->lookup_next_index != IP_LOOKUP_NEXT_ARP))
{
- p0->error = node->errors[IP4_ARP_ERROR_NON_ARP_ADJ];
+ p0->error = node->errors[IP4_NEIGHBOR_ERROR_NON_ARP_ADJ];
continue;
}
/* copy the persistent fields from the original */
clib_memcpy_fast (b0->opaque2, p0->opaque2,
sizeof (p0->opaque2));
- p0->error = node->errors[IP4_ARP_ERROR_REQUEST_SENT];
+ p0->error = node->errors[IP4_NEIGHBOR_ERROR_REQUEST_SENT];
}
else
{
- p0->error = node->errors[IP4_ARP_ERROR_NO_BUFFERS];
+ p0->error = node->errors[IP4_NEIGHBOR_ERROR_NO_BUFFERS];
continue;
}
}
return (ip4_arp_inline (vm, node, frame, 1));
}
-static char *ip4_arp_error_strings[] = {
- [IP4_ARP_ERROR_THROTTLED] = "ARP requests throttled",
- [IP4_ARP_ERROR_RESOLVED] = "ARP requests resolved",
- [IP4_ARP_ERROR_NO_BUFFERS] = "ARP requests out of buffer",
- [IP4_ARP_ERROR_REQUEST_SENT] = "ARP requests sent",
- [IP4_ARP_ERROR_NON_ARP_ADJ] = "ARPs to non-ARP adjacencies",
- [IP4_ARP_ERROR_NO_SOURCE_ADDRESS] = "no source address for ARP request",
-};
-
-/* *INDENT-OFF* */
VLIB_REGISTER_NODE (ip4_arp_node) =
{
.name = "ip4-arp",
.vector_size = sizeof (u32),
.format_trace = format_ip4_forward_next_trace,
- .n_errors = ARRAY_LEN (ip4_arp_error_strings),
- .error_strings = ip4_arp_error_strings,
+ .n_errors = IP4_NEIGHBOR_N_ERROR,
+ .error_counters = ip4_neighbor_error_counters,
.n_next_nodes = IP4_ARP_N_NEXT,
.next_nodes = {
[IP4_ARP_NEXT_DROP] = "ip4-drop",
.name = "ip4-glean",
.vector_size = sizeof (u32),
.format_trace = format_ip4_forward_next_trace,
- .n_errors = ARRAY_LEN (ip4_arp_error_strings),
- .error_strings = ip4_arp_error_strings,
+ .n_errors = IP4_NEIGHBOR_N_ERROR,
+ .error_counters = ip4_neighbor_error_counters,
.n_next_nodes = IP4_ARP_N_NEXT,
.next_nodes = {
[IP4_ARP_NEXT_DROP] = "ip4-drop",
},
};
-/* *INDENT-ON* */
#define foreach_notrace_ip4_arp_error \
_(THROTTLED) \
vlib_node_runtime_t *rt = vlib_node_get_runtime (vm, ip4_arp_node.index);
/* don't trace ARP request packets */
-#define _(a) \
- vnet_pcap_drop_trace_filter_add_del \
- (rt->errors[IP4_ARP_ERROR_##a], \
- 1 /* is_add */);
+#define _(a) \
+ vnet_pcap_drop_trace_filter_add_del (rt->errors[IP4_NEIGHBOR_ERROR_##a], \
+ 1 /* is_add */);
foreach_notrace_ip4_arp_error;
#undef _
return 0;
VLIB_INIT_FUNCTION (arp_notrace_init);
+static clib_error_t *
+ip4_neighbor_main_loop_enter (vlib_main_t * vm)
+{
+ vlib_thread_main_t *tm = &vlib_thread_main;
+ u32 n_vlib_mains = tm->n_vlib_mains;
+
+ throttle_init (&arp_throttle, n_vlib_mains, THROTTLE_BITS, 1e-3);
+
+ return (NULL);
+}
+
+VLIB_MAIN_LOOP_ENTER_FUNCTION (ip4_neighbor_main_loop_enter);
+
+
/*
* fd.io coding-style-patch-verification: ON
*
Code Review / vpp.git / blobdiff