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-rw-r--r--vnet/vnet/l2/l2_efp_filter.c690
1 files changed, 351 insertions, 339 deletions
diff --git a/vnet/vnet/l2/l2_efp_filter.c b/vnet/vnet/l2/l2_efp_filter.c
index 17b7eb3fcd6..221db9abc73 100644
--- a/vnet/vnet/l2/l2_efp_filter.c
+++ b/vnet/vnet/l2/l2_efp_filter.c
@@ -26,39 +26,43 @@
#include <vppinfra/error.h>
#include <vppinfra/cache.h>
-typedef struct {
+typedef struct
+{
- // Next nodes for features and output interfaces
+ /* Next nodes for features and output interfaces */
l2_output_next_nodes_st next_nodes;
/* convenience variables */
- vlib_main_t * vlib_main;
- vnet_main_t * vnet_main;
+ vlib_main_t *vlib_main;
+ vnet_main_t *vnet_main;
} l2_efp_filter_main_t;
-typedef struct {
- /* per-pkt trace data */
+typedef struct
+{
+ /* per-pkt trace data */
u8 src[6];
u8 dst[6];
- u8 raw[12]; // raw data (vlans)
+ u8 raw[12]; /* raw data (vlans) */
u32 sw_if_index;
} l2_efp_filter_trace_t;
/* packet trace format function */
-static u8 * format_l2_efp_filter_trace (u8 * s, va_list * args)
+static u8 *
+format_l2_efp_filter_trace (u8 * s, va_list * args)
{
CLIB_UNUSED (vlib_main_t * vm) = va_arg (*args, vlib_main_t *);
CLIB_UNUSED (vlib_node_t * node) = va_arg (*args, vlib_node_t *);
- l2_efp_filter_trace_t * t = va_arg (*args, l2_efp_filter_trace_t *);
-
+ l2_efp_filter_trace_t *t = va_arg (*args, l2_efp_filter_trace_t *);
+
s = format (s, "l2-output-vtr: sw_if_index %d dst %U src %U data "
- "%02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x",
+ "%02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x %02x",
t->sw_if_index,
- format_ethernet_address, t->dst,
- format_ethernet_address, t->src,
- t->raw[0], t->raw[1], t->raw[2], t->raw[3], t->raw[4], t->raw[5],
- t->raw[6], t->raw[7], t->raw[8], t->raw[9], t->raw[10], t->raw[11]);
+ format_ethernet_address, t->dst,
+ format_ethernet_address, t->src,
+ t->raw[0], t->raw[1], t->raw[2], t->raw[3], t->raw[4],
+ t->raw[5], t->raw[6], t->raw[7], t->raw[8], t->raw[9],
+ t->raw[10], t->raw[11]);
return s;
}
@@ -70,63 +74,67 @@ static vlib_node_registration_t l2_efp_filter_node;
_(L2_EFP_FILTER, "L2 EFP filter packets") \
_(DROP, "L2 EFP filter post-rewrite drops")
-typedef enum {
+typedef enum
+{
#define _(sym,str) L2_EFP_FILTER_ERROR_##sym,
foreach_l2_efp_filter_error
#undef _
- L2_EFP_FILTER_N_ERROR,
+ L2_EFP_FILTER_N_ERROR,
} l2_efp_filter_error_t;
-static char * l2_efp_filter_error_strings[] = {
+static char *l2_efp_filter_error_strings[] = {
#define _(sym,string) string,
foreach_l2_efp_filter_error
#undef _
};
-typedef enum {
+typedef enum
+{
L2_EFP_FILTER_NEXT_DROP,
L2_EFP_FILTER_N_NEXT,
} l2_efp_filter_next_t;
-// Extract fields from the packet that will be used in interface classification
+/**
+ * Extract fields from the packet that will be used in interface
+ * classification
+ */
static_always_inline void
extract_keys (vnet_main_t * vnet_main,
- u32 sw_if_index0,
- vlib_buffer_t * b0,
- u32 * port_sw_if_index0,
- u16 * first_ethertype0,
- u16 * outer_id0,
- u16 * inner_id0,
- u32 * match_flags0)
+ u32 sw_if_index0,
+ vlib_buffer_t * b0,
+ u32 * port_sw_if_index0,
+ u16 * first_ethertype0,
+ u16 * outer_id0, u16 * inner_id0, u32 * match_flags0)
{
- ethernet_header_t * e0;
- ethernet_vlan_header_t * h0;
+ ethernet_header_t *e0;
+ ethernet_vlan_header_t *h0;
u32 tag_len;
u32 tag_num;
- *port_sw_if_index0 = vnet_get_sup_sw_interface (vnet_main, sw_if_index0)->sw_if_index;
+ *port_sw_if_index0 =
+ vnet_get_sup_sw_interface (vnet_main, sw_if_index0)->sw_if_index;
e0 = vlib_buffer_get_current (b0);
- h0 = (ethernet_vlan_header_t *)(e0+1);
+ h0 = (ethernet_vlan_header_t *) (e0 + 1);
- *first_ethertype0 = clib_net_to_host_u16(e0->type);
+ *first_ethertype0 = clib_net_to_host_u16 (e0->type);
*outer_id0 = clib_net_to_host_u16 (h0[0].priority_cfi_and_id);
*inner_id0 = clib_net_to_host_u16 (h0[1].priority_cfi_and_id);
- tag_len = vnet_buffer(b0)->l2.l2_len - sizeof(ethernet_header_t);
- tag_num = tag_len / sizeof(ethernet_vlan_header_t);
+ tag_len = vnet_buffer (b0)->l2.l2_len - sizeof (ethernet_header_t);
+ tag_num = tag_len / sizeof (ethernet_vlan_header_t);
*match_flags0 = eth_create_valid_subint_match_flags (tag_num);
}
-/*
- * EFP filtering is a basic switch feature which prevents an interface from
- * transmitting a packet that doesn't match the interface's ingress match
- * criteria. The check has two parts, one performed before egress vlan tag
+/*
+ * EFP filtering is a basic switch feature which prevents an interface from
+ * transmitting a packet that doesn't match the interface's ingress match
+ * criteria. The check has two parts, one performed before egress vlan tag
* rewrite and one after.
*
- * The pre-rewrite check insures the packet matches what an ingress packet looks
- * like after going through the interface's ingress tag rewrite operation. Only
+ * The pre-rewrite check insures the packet matches what an ingress packet looks
+ * like after going through the interface's ingress tag rewrite operation. Only
* pushed tags are compared. So:
* - if the ingress vlan tag rewrite pushes no tags (or is not enabled),
* any packet passes the filter
@@ -137,8 +145,8 @@ extract_keys (vnet_main_t * vnet_main,
*
* The pre-rewrite check is performed in the l2-output node.
*
- * The post-rewrite check insures the packet matches what an ingress packet looks
- * like before going through the interface's ingress tag rewrite operation. It verifies
+ * The post-rewrite check insures the packet matches what an ingress packet looks
+ * like before going through the interface's ingress tag rewrite operation. It verifies
* that such a packet arriving on the wire at this port would be classified as arriving
* an input interface equal to the packet's output interface. This can be done by running
* the output packet's vlan tags and output port through the interface classification,
@@ -149,15 +157,14 @@ extract_keys (vnet_main_t * vnet_main,
static uword
l2_efp_filter_node_fn (vlib_main_t * vm,
- vlib_node_runtime_t * node,
- vlib_frame_t * frame)
+ vlib_node_runtime_t * node, vlib_frame_t * frame)
{
- u32 n_left_from, * from, * to_next;
+ u32 n_left_from, *from, *to_next;
l2_efp_filter_next_t next_index;
- l2_efp_filter_main_t * msm = &l2_efp_filter_main;
+ l2_efp_filter_main_t *msm = &l2_efp_filter_main;
vlib_node_t *n = vlib_get_node (vm, l2_efp_filter_node.index);
u32 node_counter_base_index = n->error_heap_index;
- vlib_error_main_t * em = &vm->error_main;
+ vlib_error_main_t *em = &vm->error_main;
u32 cached_sw_if_index = ~0;
u32 cached_next_index = ~0;
@@ -165,7 +172,7 @@ l2_efp_filter_node_fn (vlib_main_t * vm,
cached_sw_if_index = ~0;
from = vlib_frame_vector_args (frame);
- n_left_from = frame->n_vectors; /* number of packets to process */
+ n_left_from = frame->n_vectors; /* number of packets to process */
next_index = node->cached_next_index;
while (n_left_from > 0)
@@ -173,55 +180,60 @@ l2_efp_filter_node_fn (vlib_main_t * vm,
u32 n_left_to_next;
/* get space to enqueue frame to graph node "next_index" */
- vlib_get_next_frame (vm, node, next_index,
- to_next, n_left_to_next);
+ vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next);
while (n_left_from >= 6 && n_left_to_next >= 2)
{
- u32 bi0, bi1;
- vlib_buffer_t * b0, * b1;
- u32 next0, next1;
- u32 sw_if_index0, sw_if_index1;
- u32 feature_bitmap0, feature_bitmap1;
- u16 first_ethertype0, first_ethertype1;
- u16 outer_id0, inner_id0, outer_id1, inner_id1;
- u32 match_flags0, match_flags1;
- u32 port_sw_if_index0, subint_sw_if_index0, port_sw_if_index1, subint_sw_if_index1;
- vnet_hw_interface_t * hi0, * hi1;
- main_intf_t * main_intf0, * main_intf1;
- vlan_intf_t * vlan_intf0, * vlan_intf1;
- qinq_intf_t * qinq_intf0, * qinq_intf1;
- u32 is_l20, is_l21;
- __attribute__((unused)) u32 matched0, matched1;
- u8 error0, error1;
-
+ u32 bi0, bi1;
+ vlib_buffer_t *b0, *b1;
+ u32 next0, next1;
+ u32 sw_if_index0, sw_if_index1;
+ u32 feature_bitmap0, feature_bitmap1;
+ u16 first_ethertype0, first_ethertype1;
+ u16 outer_id0, inner_id0, outer_id1, inner_id1;
+ u32 match_flags0, match_flags1;
+ u32 port_sw_if_index0, subint_sw_if_index0, port_sw_if_index1,
+ subint_sw_if_index1;
+ vnet_hw_interface_t *hi0, *hi1;
+ main_intf_t *main_intf0, *main_intf1;
+ vlan_intf_t *vlan_intf0, *vlan_intf1;
+ qinq_intf_t *qinq_intf0, *qinq_intf1;
+ u32 is_l20, is_l21;
+ __attribute__ ((unused)) u32 matched0, matched1;
+ u8 error0, error1;
+
/* Prefetch next iteration. */
{
- vlib_buffer_t * p2, * p3, * p4, * p5;
- __attribute__((unused)) u32 sw_if_index2, sw_if_index3;
-
+ vlib_buffer_t *p2, *p3, *p4, *p5;
+ __attribute__ ((unused)) u32 sw_if_index2, sw_if_index3;
+
p2 = vlib_get_buffer (vm, from[2]);
p3 = vlib_get_buffer (vm, from[3]);
p4 = vlib_get_buffer (vm, from[4]);
p5 = vlib_get_buffer (vm, from[5]);
-
- // Prefetch the buffer header and packet for the N+2 loop iteration
+
+ /* Prefetch the buffer header and packet for the N+2 loop iteration */
vlib_prefetch_buffer_header (p4, LOAD);
vlib_prefetch_buffer_header (p5, LOAD);
CLIB_PREFETCH (p4->data, CLIB_CACHE_LINE_BYTES, STORE);
CLIB_PREFETCH (p5->data, CLIB_CACHE_LINE_BYTES, STORE);
- // Prefetch the input config for the N+1 loop iteration
- // This depends on the buffer header above
- sw_if_index2 = vnet_buffer(p2)->sw_if_index[VLIB_TX];
- sw_if_index3 = vnet_buffer(p3)->sw_if_index[VLIB_TX];
- //TODO CLIB_PREFETCH (vec_elt_at_index(l2output_main.configs, sw_if_index2), CLIB_CACHE_LINE_BYTES, LOAD);
- //TODO CLIB_PREFETCH (vec_elt_at_index(l2output_main.configs, sw_if_index3), CLIB_CACHE_LINE_BYTES, LOAD);
+ /*
+ * Prefetch the input config for the N+1 loop iteration
+ * This depends on the buffer header above
+ */
+ sw_if_index2 = vnet_buffer (p2)->sw_if_index[VLIB_TX];
+ sw_if_index3 = vnet_buffer (p3)->sw_if_index[VLIB_TX];
+ /*
+ * $$$ TODO
+ * CLIB_PREFETCH (vec_elt_at_index(l2output_main.configs, sw_if_index2), CLIB_CACHE_LINE_BYTES, LOAD);
+ * CLIB_PREFETCH (vec_elt_at_index(l2output_main.configs, sw_if_index3), CLIB_CACHE_LINE_BYTES, LOAD);
+ */
}
- /* speculatively enqueue b0 and b1 to the current next frame */
- /* bi is "buffer index", b is pointer to the buffer */
+ /* speculatively enqueue b0 and b1 to the current next frame */
+ /* bi is "buffer index", b is pointer to the buffer */
to_next[0] = bi0 = from[0];
to_next[1] = bi1 = from[1];
from += 2;
@@ -231,164 +243,156 @@ l2_efp_filter_node_fn (vlib_main_t * vm,
b0 = vlib_get_buffer (vm, bi0);
b1 = vlib_get_buffer (vm, bi1);
-
- /* TX interface handles */
- sw_if_index0 = vnet_buffer(b0)->sw_if_index[VLIB_TX];
- sw_if_index1 = vnet_buffer(b1)->sw_if_index[VLIB_TX];
-
- // process 2 packets
- em->counters[node_counter_base_index + L2_EFP_FILTER_ERROR_L2_EFP_FILTER] += 2;
-
- // Remove ourself from the feature bitmap
- feature_bitmap0 = vnet_buffer(b0)->l2.feature_bitmap & ~L2OUTPUT_FEAT_EFP_FILTER;
- feature_bitmap1 = vnet_buffer(b1)->l2.feature_bitmap & ~L2OUTPUT_FEAT_EFP_FILTER;
-
- // Determine next node
- l2_output_dispatch (msm->vlib_main,
- msm->vnet_main,
- node,
- l2_efp_filter_node.index,
- &cached_sw_if_index,
- &cached_next_index,
- &msm->next_nodes,
- b0,
- sw_if_index0,
- feature_bitmap0,
- &next0);
- l2_output_dispatch (msm->vlib_main,
- msm->vnet_main,
- node,
- l2_efp_filter_node.index,
- &cached_sw_if_index,
- &cached_next_index,
- &msm->next_nodes,
- b1,
- sw_if_index1,
- feature_bitmap1,
- &next1);
-
- // perform the efp filter check on two packets
-
- extract_keys (msm->vnet_main,
- sw_if_index0,
- b0,
- &port_sw_if_index0,
- &first_ethertype0,
- &outer_id0,
- &inner_id0,
- &match_flags0);
-
- extract_keys (msm->vnet_main,
- sw_if_index1,
- b1,
- &port_sw_if_index1,
- &first_ethertype1,
- &outer_id1,
- &inner_id1,
- &match_flags1);
-
- eth_vlan_table_lookups (&ethernet_main,
- msm->vnet_main,
- port_sw_if_index0,
- first_ethertype0,
- outer_id0,
- inner_id0,
- &hi0,
- &main_intf0,
- &vlan_intf0,
- &qinq_intf0);
-
- eth_vlan_table_lookups (&ethernet_main,
- msm->vnet_main,
- port_sw_if_index1,
- first_ethertype1,
- outer_id1,
- inner_id1,
- &hi1,
- &main_intf1,
- &vlan_intf1,
- &qinq_intf1);
-
- matched0 = eth_identify_subint (hi0,
- b0,
- match_flags0,
- main_intf0,
- vlan_intf0,
- qinq_intf0,
- &subint_sw_if_index0,
- &error0,
- &is_l20);
-
- matched1 = eth_identify_subint (hi1,
- b1,
- match_flags1,
- main_intf1,
- vlan_intf1,
- qinq_intf1,
- &subint_sw_if_index1,
- &error1,
- &is_l21);
-
- if (PREDICT_FALSE (sw_if_index0 != subint_sw_if_index0)) {
- // Drop packet
- next0 = L2_EFP_FILTER_NEXT_DROP;
- b0->error = node->errors[L2_EFP_FILTER_ERROR_DROP];
- }
- if (PREDICT_FALSE (sw_if_index1 != subint_sw_if_index1)) {
- // Drop packet
- next1 = L2_EFP_FILTER_NEXT_DROP;
- b1->error = node->errors[L2_EFP_FILTER_ERROR_DROP];
- }
+ /* TX interface handles */
+ sw_if_index0 = vnet_buffer (b0)->sw_if_index[VLIB_TX];
+ sw_if_index1 = vnet_buffer (b1)->sw_if_index[VLIB_TX];
+
+ /* process 2 packets */
+ em->counters[node_counter_base_index +
+ L2_EFP_FILTER_ERROR_L2_EFP_FILTER] += 2;
+
+ /* Remove ourself from the feature bitmap */
+ feature_bitmap0 =
+ vnet_buffer (b0)->l2.feature_bitmap & ~L2OUTPUT_FEAT_EFP_FILTER;
+ feature_bitmap1 =
+ vnet_buffer (b1)->l2.feature_bitmap & ~L2OUTPUT_FEAT_EFP_FILTER;
+
+ /* Determine next node */
+ l2_output_dispatch (msm->vlib_main,
+ msm->vnet_main,
+ node,
+ l2_efp_filter_node.index,
+ &cached_sw_if_index,
+ &cached_next_index,
+ &msm->next_nodes,
+ b0, sw_if_index0, feature_bitmap0, &next0);
+ l2_output_dispatch (msm->vlib_main,
+ msm->vnet_main,
+ node,
+ l2_efp_filter_node.index,
+ &cached_sw_if_index,
+ &cached_next_index,
+ &msm->next_nodes,
+ b1, sw_if_index1, feature_bitmap1, &next1);
+
+ /* perform the efp filter check on two packets */
+
+ extract_keys (msm->vnet_main,
+ sw_if_index0,
+ b0,
+ &port_sw_if_index0,
+ &first_ethertype0,
+ &outer_id0, &inner_id0, &match_flags0);
+
+ extract_keys (msm->vnet_main,
+ sw_if_index1,
+ b1,
+ &port_sw_if_index1,
+ &first_ethertype1,
+ &outer_id1, &inner_id1, &match_flags1);
+
+ eth_vlan_table_lookups (&ethernet_main,
+ msm->vnet_main,
+ port_sw_if_index0,
+ first_ethertype0,
+ outer_id0,
+ inner_id0,
+ &hi0,
+ &main_intf0, &vlan_intf0, &qinq_intf0);
+
+ eth_vlan_table_lookups (&ethernet_main,
+ msm->vnet_main,
+ port_sw_if_index1,
+ first_ethertype1,
+ outer_id1,
+ inner_id1,
+ &hi1,
+ &main_intf1, &vlan_intf1, &qinq_intf1);
+
+ matched0 = eth_identify_subint (hi0,
+ b0,
+ match_flags0,
+ main_intf0,
+ vlan_intf0,
+ qinq_intf0,
+ &subint_sw_if_index0,
+ &error0, &is_l20);
+
+ matched1 = eth_identify_subint (hi1,
+ b1,
+ match_flags1,
+ main_intf1,
+ vlan_intf1,
+ qinq_intf1,
+ &subint_sw_if_index1,
+ &error1, &is_l21);
+
+ if (PREDICT_FALSE (sw_if_index0 != subint_sw_if_index0))
+ {
+ /* Drop packet */
+ next0 = L2_EFP_FILTER_NEXT_DROP;
+ b0->error = node->errors[L2_EFP_FILTER_ERROR_DROP];
+ }
+
+ if (PREDICT_FALSE (sw_if_index1 != subint_sw_if_index1))
+ {
+ /* Drop packet */
+ next1 = L2_EFP_FILTER_NEXT_DROP;
+ b1->error = node->errors[L2_EFP_FILTER_ERROR_DROP];
+ }
+
+ if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE)))
+ {
+ if (b0->flags & VLIB_BUFFER_IS_TRACED)
+ {
+ ethernet_header_t *h0 = vlib_buffer_get_current (b0);
+ l2_efp_filter_trace_t *t =
+ vlib_add_trace (vm, node, b0, sizeof (*t));
+ t->sw_if_index = sw_if_index0;
+ clib_memcpy (t->src, h0->src_address, 6);
+ clib_memcpy (t->dst, h0->dst_address, 6);
+ clib_memcpy (t->raw, &h0->type, sizeof (t->raw));
+ }
+ if (b1->flags & VLIB_BUFFER_IS_TRACED)
+ {
+ ethernet_header_t *h1 = vlib_buffer_get_current (b1);
+ l2_efp_filter_trace_t *t =
+ vlib_add_trace (vm, node, b1, sizeof (*t));
+ t->sw_if_index = sw_if_index1;
+ clib_memcpy (t->src, h1->src_address, 6);
+ clib_memcpy (t->dst, h1->dst_address, 6);
+ clib_memcpy (t->raw, &h1->type, sizeof (t->raw));
+ }
+ }
+
+ /* verify speculative enqueues, maybe switch current next frame */
+ /* if next0==next1==next_index then nothing special needs to be done */
+ vlib_validate_buffer_enqueue_x2 (vm, node, next_index,
+ to_next, n_left_to_next,
+ bi0, bi1, next0, next1);
+ }
- if (PREDICT_FALSE((node->flags & VLIB_NODE_FLAG_TRACE))) {
- if (b0->flags & VLIB_BUFFER_IS_TRACED) {
- ethernet_header_t * h0 = vlib_buffer_get_current (b0);
- l2_efp_filter_trace_t *t =
- vlib_add_trace (vm, node, b0, sizeof (*t));
- t->sw_if_index = sw_if_index0;
- clib_memcpy(t->src, h0->src_address, 6);
- clib_memcpy(t->dst, h0->dst_address, 6);
- clib_memcpy(t->raw, &h0->type, sizeof(t->raw));
- }
- if (b1->flags & VLIB_BUFFER_IS_TRACED) {
- ethernet_header_t * h1 = vlib_buffer_get_current (b1);
- l2_efp_filter_trace_t *t =
- vlib_add_trace (vm, node, b1, sizeof (*t));
- t->sw_if_index = sw_if_index1;
- clib_memcpy(t->src, h1->src_address, 6);
- clib_memcpy(t->dst, h1->dst_address, 6);
- clib_memcpy(t->raw, &h1->type, sizeof(t->raw));
- }
- }
-
- /* verify speculative enqueues, maybe switch current next frame */
- /* if next0==next1==next_index then nothing special needs to be done */
- vlib_validate_buffer_enqueue_x2 (vm, node, next_index,
- to_next, n_left_to_next,
- bi0, bi1, next0, next1);
- }
-
while (n_left_from > 0 && n_left_to_next > 0)
{
- u32 bi0;
- vlib_buffer_t * b0;
- u32 next0;
- u32 sw_if_index0;
- u32 feature_bitmap0;
- u16 first_ethertype0;
- u16 outer_id0, inner_id0;
- u32 match_flags0;
- u32 port_sw_if_index0, subint_sw_if_index0;
- vnet_hw_interface_t * hi0;
- main_intf_t * main_intf0;
- vlan_intf_t * vlan_intf0;
- qinq_intf_t * qinq_intf0;
- u32 is_l20;
- __attribute__((unused)) u32 matched0;
- u8 error0;
-
- /* speculatively enqueue b0 to the current next frame */
+ u32 bi0;
+ vlib_buffer_t *b0;
+ u32 next0;
+ u32 sw_if_index0;
+ u32 feature_bitmap0;
+ u16 first_ethertype0;
+ u16 outer_id0, inner_id0;
+ u32 match_flags0;
+ u32 port_sw_if_index0, subint_sw_if_index0;
+ vnet_hw_interface_t *hi0;
+ main_intf_t *main_intf0;
+ vlan_intf_t *vlan_intf0;
+ qinq_intf_t *qinq_intf0;
+ u32 is_l20;
+ __attribute__ ((unused)) u32 matched0;
+ u8 error0;
+
+ /* speculatively enqueue b0 to the current next frame */
bi0 = from[0];
to_next[0] = bi0;
from += 1;
@@ -397,77 +401,73 @@ l2_efp_filter_node_fn (vlib_main_t * vm,
n_left_to_next -= 1;
b0 = vlib_get_buffer (vm, bi0);
- sw_if_index0 = vnet_buffer(b0)->sw_if_index[VLIB_TX];
-
- // process 1 packet
- em->counters[node_counter_base_index + L2_EFP_FILTER_ERROR_L2_EFP_FILTER] += 1;
-
- // Remove ourself from the feature bitmap
- feature_bitmap0 = vnet_buffer(b0)->l2.feature_bitmap & ~L2OUTPUT_FEAT_EFP_FILTER;
-
- // Determine next node
- l2_output_dispatch (msm->vlib_main,
- msm->vnet_main,
- node,
- l2_efp_filter_node.index,
- &cached_sw_if_index,
- &cached_next_index,
- &msm->next_nodes,
- b0,
- sw_if_index0,
- feature_bitmap0,
- &next0);
-
- // perform the efp filter check on one packet
-
- extract_keys (msm->vnet_main,
- sw_if_index0,
- b0,
- &port_sw_if_index0,
- &first_ethertype0,
- &outer_id0,
- &inner_id0,
- &match_flags0);
-
- eth_vlan_table_lookups (&ethernet_main,
- msm->vnet_main,
- port_sw_if_index0,
- first_ethertype0,
- outer_id0,
- inner_id0,
- &hi0,
- &main_intf0,
- &vlan_intf0,
- &qinq_intf0);
-
- matched0 = eth_identify_subint (hi0,
- b0,
- match_flags0,
- main_intf0,
- vlan_intf0,
- qinq_intf0,
- &subint_sw_if_index0,
- &error0,
- &is_l20);
-
- if (PREDICT_FALSE (sw_if_index0 != subint_sw_if_index0)) {
- // Drop packet
- next0 = L2_EFP_FILTER_NEXT_DROP;
- b0->error = node->errors[L2_EFP_FILTER_ERROR_DROP];
- }
-
- if (PREDICT_FALSE((node->flags & VLIB_NODE_FLAG_TRACE)
- && (b0->flags & VLIB_BUFFER_IS_TRACED))) {
- ethernet_header_t * h0 = vlib_buffer_get_current (b0);
- l2_efp_filter_trace_t *t =
- vlib_add_trace (vm, node, b0, sizeof (*t));
- t->sw_if_index = sw_if_index0;
- clib_memcpy(t->src, h0->src_address, 6);
- clib_memcpy(t->dst, h0->dst_address, 6);
- clib_memcpy(t->raw, &h0->type, sizeof(t->raw));
- }
-
- /* verify speculative enqueue, maybe switch current next frame */
+ sw_if_index0 = vnet_buffer (b0)->sw_if_index[VLIB_TX];
+
+ /* process 1 packet */
+ em->counters[node_counter_base_index +
+ L2_EFP_FILTER_ERROR_L2_EFP_FILTER] += 1;
+
+ /* Remove ourself from the feature bitmap */
+ feature_bitmap0 =
+ vnet_buffer (b0)->l2.feature_bitmap & ~L2OUTPUT_FEAT_EFP_FILTER;
+
+ /* Determine next node */
+ l2_output_dispatch (msm->vlib_main,
+ msm->vnet_main,
+ node,
+ l2_efp_filter_node.index,
+ &cached_sw_if_index,
+ &cached_next_index,
+ &msm->next_nodes,
+ b0, sw_if_index0, feature_bitmap0, &next0);
+
+ /* perform the efp filter check on one packet */
+
+ extract_keys (msm->vnet_main,
+ sw_if_index0,
+ b0,
+ &port_sw_if_index0,
+ &first_ethertype0,
+ &outer_id0, &inner_id0, &match_flags0);
+
+ eth_vlan_table_lookups (&ethernet_main,
+ msm->vnet_main,
+ port_sw_if_index0,
+ first_ethertype0,
+ outer_id0,
+ inner_id0,
+ &hi0,
+ &main_intf0, &vlan_intf0, &qinq_intf0);
+
+ matched0 = eth_identify_subint (hi0,
+ b0,
+ match_flags0,
+ main_intf0,
+ vlan_intf0,
+ qinq_intf0,
+ &subint_sw_if_index0,
+ &error0, &is_l20);
+
+ if (PREDICT_FALSE (sw_if_index0 != subint_sw_if_index0))
+ {
+ /* Drop packet */
+ next0 = L2_EFP_FILTER_NEXT_DROP;
+ b0->error = node->errors[L2_EFP_FILTER_ERROR_DROP];
+ }
+
+ if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE)
+ && (b0->flags & VLIB_BUFFER_IS_TRACED)))
+ {
+ ethernet_header_t *h0 = vlib_buffer_get_current (b0);
+ l2_efp_filter_trace_t *t =
+ vlib_add_trace (vm, node, b0, sizeof (*t));
+ t->sw_if_index = sw_if_index0;
+ clib_memcpy (t->src, h0->src_address, 6);
+ clib_memcpy (t->dst, h0->dst_address, 6);
+ clib_memcpy (t->raw, &h0->type, sizeof (t->raw));
+ }
+
+ /* verify speculative enqueue, maybe switch current next frame */
vlib_validate_buffer_enqueue_x1 (vm, node, next_index,
to_next, n_left_to_next,
bi0, next0);
@@ -480,13 +480,14 @@ l2_efp_filter_node_fn (vlib_main_t * vm,
}
+/* *INDENT-OFF* */
VLIB_REGISTER_NODE (l2_efp_filter_node,static) = {
.function = l2_efp_filter_node_fn,
.name = "l2-efp-filter",
.vector_size = sizeof (u32),
.format_trace = format_l2_efp_filter_trace,
.type = VLIB_NODE_TYPE_INTERNAL,
-
+
.n_errors = ARRAY_LEN(l2_efp_filter_error_strings),
.error_strings = l2_efp_filter_error_strings,
@@ -497,25 +498,25 @@ VLIB_REGISTER_NODE (l2_efp_filter_node,static) = {
[L2_EFP_FILTER_NEXT_DROP] = "error-drop",
},
};
+/* *INDENT-ON* */
VLIB_NODE_FUNCTION_MULTIARCH (l2_efp_filter_node, l2_efp_filter_node_fn)
-
-clib_error_t *l2_efp_filter_init (vlib_main_t *vm)
+ clib_error_t *l2_efp_filter_init (vlib_main_t * vm)
{
- l2_efp_filter_main_t * mp = &l2_efp_filter_main;
-
+ l2_efp_filter_main_t *mp = &l2_efp_filter_main;
+
mp->vlib_main = vm;
- mp->vnet_main = vnet_get_main();
+ mp->vnet_main = vnet_get_main ();
- // Initialize the feature next-node indexes
- feat_bitmap_init_next_nodes(vm,
- l2_efp_filter_node.index,
- L2OUTPUT_N_FEAT,
- l2output_get_feat_names(),
- mp->next_nodes.feat_next_node_index);
+ /* Initialize the feature next-node indexes */
+ feat_bitmap_init_next_nodes (vm,
+ l2_efp_filter_node.index,
+ L2OUTPUT_N_FEAT,
+ l2output_get_feat_names (),
+ mp->next_nodes.feat_next_node_index);
- // Initialize the output node mapping table
- l2output_init_output_node_vec(&mp->next_nodes.output_node_index_vec);
+ /* Initialize the output node mapping table */
+ l2output_init_output_node_vec (&mp->next_nodes.output_node_index_vec);
return 0;
}
@@ -523,52 +524,63 @@ clib_error_t *l2_efp_filter_init (vlib_main_t *vm)
VLIB_INIT_FUNCTION (l2_efp_filter_init);
-// Enable/disable the EFP Filter check on the subinterface
-void l2_efp_filter_configure (vnet_main_t * vnet_main,
- u32 sw_if_index,
- u32 enable)
+/** Enable/disable the EFP Filter check on the subinterface */
+void
+l2_efp_filter_configure (vnet_main_t * vnet_main, u32 sw_if_index, u32 enable)
{
- // set the interface flag
- l2output_intf_bitmap_enable(sw_if_index, L2OUTPUT_FEAT_EFP_FILTER, enable);
+ /* set the interface flag */
+ l2output_intf_bitmap_enable (sw_if_index, L2OUTPUT_FEAT_EFP_FILTER, enable);
}
-// set subinterface egress efp filter enable/disable
-// The CLI format is:
-// set interface l2 efp-filter <interface> [disable]]
+/**
+ * set subinterface egress efp filter enable/disable
+ * The CLI format is:
+ * set interface l2 efp-filter <interface> [disable]]
+ */
static clib_error_t *
int_l2_efp_filter (vlib_main_t * vm,
- unformat_input_t * input,
- vlib_cli_command_t * cmd)
+ unformat_input_t * input, vlib_cli_command_t * cmd)
{
- vnet_main_t * vnm = vnet_get_main();
- clib_error_t * error = 0;
+ vnet_main_t *vnm = vnet_get_main ();
+ clib_error_t *error = 0;
u32 sw_if_index;
u32 enable;
- if (! unformat_user (input, unformat_vnet_sw_interface, vnm, &sw_if_index))
+ if (!unformat_user (input, unformat_vnet_sw_interface, vnm, &sw_if_index))
{
error = clib_error_return (0, "unknown interface `%U'",
- format_unformat_error, input);
+ format_unformat_error, input);
goto done;
}
enable = 1;
- if (unformat (input, "disable")) {
- enable = 0;
- }
+ if (unformat (input, "disable"))
+ {
+ enable = 0;
+ }
- // enable/disable the feature
+ /* enable/disable the feature */
l2_efp_filter_configure (vnm, sw_if_index, enable);
- done:
+done:
return error;
}
+/* *INDENT-OFF* */
VLIB_CLI_COMMAND (int_l2_efp_filter_cli, static) = {
.path = "set interface l2 efp-filter",
.short_help = "set interface l2 efp-filter <interface> [disable]",
.function = int_l2_efp_filter,
};
+/* *INDENT-ON* */
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */