static const char *const lookup_input_names[] = LOOKUP_INPUTS;
static const char *const lookup_cast_names[] = LOOKUP_CASTS;
+/**
+ * If a packet encounters a lookup DPO more than the many times
+ * then we assume there is a loop in the forward graph and drop the packet
+ */
+#define MAX_LUKPS_PER_PACKET 4
+
/**
* @brief Enumeration of the lookup subtypes
*/
(cm, thread_index, lbi1, 1,
vlib_buffer_length_in_chain (vm, b1));
+ if (!(b0->flags & VNET_BUFFER_F_LOOP_COUNTER_VALID)) {
+ vnet_buffer2(b0)->loop_counter = 0;
+ b0->flags |= VNET_BUFFER_F_LOOP_COUNTER_VALID;
+ }
+ if (!(b1->flags & VNET_BUFFER_F_LOOP_COUNTER_VALID)) {
+ vnet_buffer2(b1)->loop_counter = 0;
+ b1->flags |= VNET_BUFFER_F_LOOP_COUNTER_VALID;
+ }
+
+ vnet_buffer2(b0)->loop_counter++;
+ vnet_buffer2(b1)->loop_counter++;
+
+ if (PREDICT_FALSE(vnet_buffer2(b0)->loop_counter > MAX_LUKPS_PER_PACKET))
+ next0 = IP_LOOKUP_NEXT_DROP;
+ if (PREDICT_FALSE(vnet_buffer2(b1)->loop_counter > MAX_LUKPS_PER_PACKET))
+ next1 = IP_LOOKUP_NEXT_DROP;
+
if (PREDICT_FALSE(b0->flags & VLIB_BUFFER_IS_TRACED))
{
lookup_trace_t *tr = vlib_add_trace (vm, node,
(cm, thread_index, lbi0, 1,
vlib_buffer_length_in_chain (vm, b0));
+ if (!(b0->flags & VNET_BUFFER_F_LOOP_COUNTER_VALID)) {
+ vnet_buffer2(b0)->loop_counter = 0;
+ b0->flags |= VNET_BUFFER_F_LOOP_COUNTER_VALID;
+ }
+
+ vnet_buffer2(b0)->loop_counter++;
+
+ if (PREDICT_FALSE(vnet_buffer2(b0)->loop_counter > MAX_LUKPS_PER_PACKET))
+ next0 = IP_LOOKUP_NEXT_DROP;
+
if (PREDICT_FALSE(b0->flags & VLIB_BUFFER_IS_TRACED))
{
lookup_trace_t *tr = vlib_add_trace (vm, node,
return s;
}
-always_inline uword
-lookup_ip4_dst (vlib_main_t * vm,
+VLIB_NODE_FN (lookup_ip4_dst_node) (vlib_main_t * vm,
vlib_node_runtime_t * node,
vlib_frame_t * from_frame)
{
}
VLIB_REGISTER_NODE (lookup_ip4_dst_node) = {
- .function = lookup_ip4_dst,
.name = "lookup-ip4-dst",
.vector_size = sizeof (u32),
.sibling_of = "ip4-lookup",
.format_trace = format_lookup_trace,
};
-VLIB_NODE_FUNCTION_MULTIARCH (lookup_ip4_dst_node, lookup_ip4_dst)
-always_inline uword
-lookup_ip4_dst_itf (vlib_main_t * vm,
+VLIB_NODE_FN (lookup_ip4_dst_itf_node) (vlib_main_t * vm,
vlib_node_runtime_t * node,
vlib_frame_t * from_frame)
{
}
VLIB_REGISTER_NODE (lookup_ip4_dst_itf_node) = {
- .function = lookup_ip4_dst_itf,
.name = "lookup-ip4-dst-itf",
.vector_size = sizeof (u32),
.sibling_of = "ip4-lookup",
.format_trace = format_lookup_trace,
};
-VLIB_NODE_FUNCTION_MULTIARCH (lookup_ip4_dst_itf_node, lookup_ip4_dst_itf)
-always_inline uword
-lookup_ip4_src (vlib_main_t * vm,
+VLIB_NODE_FN (lookup_ip4_src_node) (vlib_main_t * vm,
vlib_node_runtime_t * node,
vlib_frame_t * from_frame)
{
}
VLIB_REGISTER_NODE (lookup_ip4_src_node) = {
- .function = lookup_ip4_src,
.name = "lookup-ip4-src",
.vector_size = sizeof (u32),
.format_trace = format_lookup_trace,
.sibling_of = "ip4-lookup",
};
-VLIB_NODE_FUNCTION_MULTIARCH (lookup_ip4_src_node, lookup_ip4_src)
always_inline uword
lookup_dpo_ip6_inline (vlib_main_t * vm,
}
/* do src lookup */
- lbi0 = ip6_fib_table_fwding_lookup(&ip6_main,
+ lbi0 = ip6_fib_table_fwding_lookup(
fib_index0,
input_addr0);
- lbi1 = ip6_fib_table_fwding_lookup(&ip6_main,
+ lbi1 = ip6_fib_table_fwding_lookup(
fib_index1,
input_addr1);
lb0 = load_balance_get(lbi0);
hash_c0 = vnet_buffer (b0)->ip.flow_hash = 0;
hash_c1 = vnet_buffer (b1)->ip.flow_hash = 0;
+ if (!(b0->flags & VNET_BUFFER_F_LOOP_COUNTER_VALID)) {
+ vnet_buffer2(b0)->loop_counter = 0;
+ b0->flags |= VNET_BUFFER_F_LOOP_COUNTER_VALID;
+ }
+ if (!(b1->flags & VNET_BUFFER_F_LOOP_COUNTER_VALID)) {
+ vnet_buffer2(b1)->loop_counter = 0;
+ b1->flags |= VNET_BUFFER_F_LOOP_COUNTER_VALID;
+ }
+
+ vnet_buffer2(b0)->loop_counter++;
+ vnet_buffer2(b1)->loop_counter++;
+
+ if (PREDICT_FALSE(vnet_buffer2(b0)->loop_counter > MAX_LUKPS_PER_PACKET))
+ next0 = IP_LOOKUP_NEXT_DROP;
+ if (PREDICT_FALSE(vnet_buffer2(b1)->loop_counter > MAX_LUKPS_PER_PACKET))
+ next1 = IP_LOOKUP_NEXT_DROP;
+
if (PREDICT_FALSE (lb0->lb_n_buckets > 1))
{
flow_hash_config0 = lb0->lb_hash_config;
}
/* do src lookup */
- lbi0 = ip6_fib_table_fwding_lookup(&ip6_main,
+ lbi0 = ip6_fib_table_fwding_lookup(
fib_index0,
input_addr0);
lb0 = load_balance_get(lbi0);
next0 = dpo0->dpoi_next_node;
vnet_buffer(b0)->ip.adj_index[VLIB_TX] = dpo0->dpoi_index;
+ if (!(b0->flags & VNET_BUFFER_F_LOOP_COUNTER_VALID)) {
+ vnet_buffer2(b0)->loop_counter = 0;
+ b0->flags |= VNET_BUFFER_F_LOOP_COUNTER_VALID;
+ }
+
+ vnet_buffer2(b0)->loop_counter++;
+
+ if (PREDICT_FALSE(vnet_buffer2(b0)->loop_counter > MAX_LUKPS_PER_PACKET))
+ next0 = IP_LOOKUP_NEXT_DROP;
+
vlib_increment_combined_counter
(cm, thread_index, lbi0, 1,
vlib_buffer_length_in_chain (vm, b0));
return from_frame->n_vectors;
}
-always_inline uword
-lookup_ip6_dst (vlib_main_t * vm,
+VLIB_NODE_FN (lookup_ip6_dst_node) (vlib_main_t * vm,
vlib_node_runtime_t * node,
vlib_frame_t * from_frame)
{
}
VLIB_REGISTER_NODE (lookup_ip6_dst_node) = {
- .function = lookup_ip6_dst,
.name = "lookup-ip6-dst",
.vector_size = sizeof (u32),
.format_trace = format_lookup_trace,
.sibling_of = "ip6-lookup",
};
-VLIB_NODE_FUNCTION_MULTIARCH (lookup_ip6_dst_node, lookup_ip6_dst)
-always_inline uword
-lookup_ip6_dst_itf (vlib_main_t * vm,
+VLIB_NODE_FN (lookup_ip6_dst_itf_node) (vlib_main_t * vm,
vlib_node_runtime_t * node,
vlib_frame_t * from_frame)
{
}
VLIB_REGISTER_NODE (lookup_ip6_dst_itf_node) = {
- .function = lookup_ip6_dst_itf,
.name = "lookup-ip6-dst-itf",
.vector_size = sizeof (u32),
.format_trace = format_lookup_trace,
.sibling_of = "ip6-lookup",
};
-VLIB_NODE_FUNCTION_MULTIARCH (lookup_ip6_dst_itf_node, lookup_ip6_dst_itf)
-always_inline uword
-lookup_ip6_src (vlib_main_t * vm,
+VLIB_NODE_FN (lookup_ip6_src_node) (vlib_main_t * vm,
vlib_node_runtime_t * node,
vlib_frame_t * from_frame)
{
}
VLIB_REGISTER_NODE (lookup_ip6_src_node) = {
- .function = lookup_ip6_src,
.name = "lookup-ip6-src",
.vector_size = sizeof (u32),
.format_trace = format_lookup_trace,
.sibling_of = "ip6-lookup",
};
-VLIB_NODE_FUNCTION_MULTIARCH (lookup_ip6_src_node, lookup_ip6_src)
always_inline uword
lookup_dpo_mpls_inline (vlib_main_t * vm,
vlib_buffer_length_in_chain (vm, b0));
}
- vnet_buffer (b0)->mpls.ttl = ((char*)hdr0)[3];
+ vnet_buffer (b0)->mpls.ttl = ((char*)hdr0)[3];
vnet_buffer (b0)->mpls.exp = (((char*)hdr0)[2] & 0xe) >> 1;
vnet_buffer (b0)->mpls.first = 1;
vlib_buffer_advance(b0, sizeof(*hdr0));
+ if (!(b0->flags & VNET_BUFFER_F_LOOP_COUNTER_VALID)) {
+ vnet_buffer2(b0)->loop_counter = 0;
+ b0->flags |= VNET_BUFFER_F_LOOP_COUNTER_VALID;
+ }
+
+ vnet_buffer2(b0)->loop_counter++;
+
+ if (PREDICT_FALSE(vnet_buffer2(b0)->loop_counter > MAX_LUKPS_PER_PACKET))
+ next0 = MPLS_LOOKUP_NEXT_DROP;
+
if (PREDICT_FALSE(b0->flags & VLIB_BUFFER_IS_TRACED))
{
lookup_trace_t *tr = vlib_add_trace (vm, node,
return s;
}
-always_inline uword
-lookup_mpls_dst (vlib_main_t * vm,
+VLIB_NODE_FN (lookup_mpls_dst_node) (vlib_main_t * vm,
vlib_node_runtime_t * node,
vlib_frame_t * from_frame)
{
}
VLIB_REGISTER_NODE (lookup_mpls_dst_node) = {
- .function = lookup_mpls_dst,
.name = "lookup-mpls-dst",
.vector_size = sizeof (u32),
.sibling_of = "mpls-lookup",
.format_trace = format_lookup_mpls_trace,
.n_next_nodes = 0,
};
-VLIB_NODE_FUNCTION_MULTIARCH (lookup_mpls_dst_node, lookup_mpls_dst)
-always_inline uword
-lookup_mpls_dst_itf (vlib_main_t * vm,
+VLIB_NODE_FN (lookup_mpls_dst_itf_node) (vlib_main_t * vm,
vlib_node_runtime_t * node,
vlib_frame_t * from_frame)
{
}
VLIB_REGISTER_NODE (lookup_mpls_dst_itf_node) = {
- .function = lookup_mpls_dst_itf,
.name = "lookup-mpls-dst-itf",
.vector_size = sizeof (u32),
.sibling_of = "mpls-lookup",
.format_trace = format_lookup_mpls_trace,
.n_next_nodes = 0,
};
-VLIB_NODE_FUNCTION_MULTIARCH (lookup_mpls_dst_itf_node, lookup_mpls_dst_itf)
typedef enum lookup_ip_dst_mcast_next_t_ {
+ LOOKUP_IP_DST_MCAST_NEXT_DROP,
LOOKUP_IP_DST_MCAST_NEXT_RPF,
LOOKUP_IP_DST_MCAST_N_NEXT,
} mfib_forward_lookup_next_t;
ip6_header_t * ip0;
ip0 = vlib_buffer_get_current (b0);
- mfei0 = ip6_mfib_table_lookup2(ip6_mfib_get(fib_index0),
- &ip0->src_address,
- &ip0->dst_address);
+ mfei0 = ip6_mfib_table_fwd_lookup(ip6_mfib_get(fib_index0),
+ &ip0->src_address,
+ &ip0->dst_address);
if (PREDICT_FALSE(b0->flags & VLIB_BUFFER_IS_TRACED))
{
lookup_trace_t *tr = vlib_add_trace (vm, node,
vnet_buffer (b0)->ip.adj_index[VLIB_TX] = mfei0;
+ if (!(b0->flags & VNET_BUFFER_F_LOOP_COUNTER_VALID)) {
+ vnet_buffer2(b0)->loop_counter = 0;
+ b0->flags |= VNET_BUFFER_F_LOOP_COUNTER_VALID;
+ }
+
+ vnet_buffer2(b0)->loop_counter++;
+
+ if (PREDICT_FALSE(vnet_buffer2(b0)->loop_counter > MAX_LUKPS_PER_PACKET))
+ next0 = LOOKUP_IP_DST_MCAST_NEXT_DROP;
+
vlib_validate_buffer_enqueue_x1(vm, node, next_index, to_next,
n_left_to_next, bi0, next0);
}
return from_frame->n_vectors;
}
-always_inline uword
-lookup_ip4_dst_mcast (vlib_main_t * vm,
+VLIB_NODE_FN (lookup_ip4_dst_mcast_node) (vlib_main_t * vm,
vlib_node_runtime_t * node,
vlib_frame_t * from_frame)
{
}
VLIB_REGISTER_NODE (lookup_ip4_dst_mcast_node) = {
- .function = lookup_ip4_dst_mcast,
.name = "lookup-ip4-dst-mcast",
.vector_size = sizeof (u32),
.format_trace = format_lookup_trace,
.n_next_nodes = LOOKUP_IP_DST_MCAST_N_NEXT,
.next_nodes = {
+ [LOOKUP_IP_DST_MCAST_NEXT_DROP] = "ip4-drop",
[LOOKUP_IP_DST_MCAST_NEXT_RPF] = "ip4-mfib-forward-rpf",
},
};
-VLIB_NODE_FUNCTION_MULTIARCH (lookup_ip4_dst_mcast_node,
- lookup_ip4_dst_mcast)
-always_inline uword
-lookup_ip6_dst_mcast (vlib_main_t * vm,
+VLIB_NODE_FN (lookup_ip6_dst_mcast_node) (vlib_main_t * vm,
vlib_node_runtime_t * node,
vlib_frame_t * from_frame)
{
}
VLIB_REGISTER_NODE (lookup_ip6_dst_mcast_node) = {
- .function = lookup_ip6_dst_mcast,
.name = "lookup-ip6-dst-mcast",
.vector_size = sizeof (u32),
.format_trace = format_lookup_trace,
.n_next_nodes = LOOKUP_IP_DST_MCAST_N_NEXT,
.next_nodes = {
+ [LOOKUP_IP_DST_MCAST_NEXT_DROP] = "ip6-drop",
[LOOKUP_IP_DST_MCAST_NEXT_RPF] = "ip6-mfib-forward-rpf",
},
};
-VLIB_NODE_FUNCTION_MULTIARCH (lookup_ip6_dst_mcast_node,
- lookup_ip6_dst_mcast)
static void
lookup_dpo_mem_show (void)
[DPO_PROTO_MPLS] = lookup_dst_from_interface_mpls_nodes,
};
+static clib_error_t *
+lookup_dpo_show (vlib_main_t * vm,
+ unformat_input_t * input,
+ vlib_cli_command_t * cmd)
+{
+ index_t lkdi = INDEX_INVALID;
+
+ while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
+ {
+ if (unformat (input, "%d", &lkdi))
+ ;
+ else
+ break;
+ }
+
+ if (INDEX_INVALID != lkdi)
+ {
+ if (pool_is_free_index(lookup_dpo_pool, lkdi))
+ vlib_cli_output (vm, "no such index %d", lkdi);
+ else
+ vlib_cli_output (vm, "%U", format_lookup_dpo, lkdi);
+ }
+ else
+ {
+ lookup_dpo_t *lkd;
+
+ pool_foreach(lkd, lookup_dpo_pool,
+ ({
+ vlib_cli_output (vm, "[@%d] %U",
+ lookup_dpo_get_index(lkd),
+ format_lookup_dpo,
+ lookup_dpo_get_index(lkd));
+ }));
+ }
+
+ return 0;
+}
+
+VLIB_CLI_COMMAND (replicate_show_command, static) = {
+ .path = "show lookup-dpo",
+ .short_help = "show lookup-dpo [<index>]",
+ .function = lookup_dpo_show,
+};
void
lookup_dpo_module_init (void)
Code Review / vpp.git / blobdiff