vnet/l2/feat_bitmap.c \
vnet/l2/l2_bd.c \
vnet/l2/l2_bvi.c \
- vnet/l2/l2_classify.c \
+ vnet/l2/l2_input_classify.c \
+ vnet/l2/l2_output_classify.c \
vnet/l2/l2_efp_filter.c \
vnet/l2/l2_fib.c \
vnet/l2/l2_flood.c \
#include <vnet/classify/input_acl.h>
#include <vnet/ip/ip.h>
#include <vnet/api_errno.h> /* for API error numbers */
-#include <vnet/l2/l2_classify.h> /* for L2_CLASSIFY_NEXT_xxx */
+#include <vnet/l2/l2_classify.h> /* for L2_INPUT_CLASSIFY_NEXT_xxx */
vnet_classify_main_t vnet_classify_main;
return 0;
}
-#define foreach_l2_next \
+#define foreach_l2_input_next \
_(drop, DROP) \
_(ethernet, ETHERNET_INPUT) \
_(ip4, IP4_INPUT) \
_(ip6, IP6_INPUT) \
_(li, LI)
-uword unformat_l2_next_index (unformat_input_t * input, va_list * args)
+uword unformat_l2_input_next_index (unformat_input_t * input, va_list * args)
{
vnet_classify_main_t * cm = &vnet_classify_main;
u32 * miss_next_indexp = va_arg (*args, u32 *);
}
#define _(n,N) \
- if (unformat (input, #n)) { next_index = L2_CLASSIFY_NEXT_##N; goto out;}
- foreach_l2_next;
+ if (unformat (input, #n)) { next_index = L2_INPUT_CLASSIFY_NEXT_##N; goto out;}
+ foreach_l2_input_next;
+#undef _
+
+ if (unformat (input, "%d", &tmp))
+ {
+ next_index = tmp;
+ goto out;
+ }
+
+ return 0;
+
+ out:
+ *miss_next_indexp = next_index;
+ return 1;
+}
+
+#define foreach_l2_output_next \
+_(drop, DROP)
+
+uword unformat_l2_output_next_index (unformat_input_t * input, va_list * args)
+{
+ vnet_classify_main_t * cm = &vnet_classify_main;
+ u32 * miss_next_indexp = va_arg (*args, u32 *);
+ u32 next_index = 0;
+ u32 tmp;
+ int i;
+
+ /* First try registered unformat fns, allowing override... */
+ for (i = 0; i < vec_len (cm->unformat_l2_next_index_fns); i++)
+ {
+ if (unformat (input, "%U", cm->unformat_l2_next_index_fns[i], &tmp))
+ {
+ next_index = tmp;
+ goto out;
+ }
+ }
+
+#define _(n,N) \
+ if (unformat (input, #n)) { next_index = L2_OUTPUT_CLASSIFY_NEXT_##N; goto out;}
+ foreach_l2_output_next;
#undef _
if (unformat (input, "%d", &tmp))
else if (unformat (input, "miss-next %U", unformat_ip_next_index,
&miss_next_index))
;
- else if (unformat (input, "l2-miss-next %U", unformat_l2_next_index,
+ else if (unformat (input, "l2-input-miss-next %U", unformat_l2_input_next_index,
+ &miss_next_index))
+ ;
+ else if (unformat (input, "l2-output-miss-next %U", unformat_l2_output_next_index,
&miss_next_index))
;
else if (unformat (input, "acl-miss-next %U", unformat_acl_next_index,
else if (unformat (input, "hit-next %U", unformat_ip_next_index,
&hit_next_index))
;
- else if (unformat (input, "l2-hit-next %U", unformat_l2_next_index,
+ else if (unformat (input, "l2-input-hit-next %U", unformat_l2_input_next_index,
+ &hit_next_index))
+ ;
+ else if (unformat (input, "l2-output-hit-next %U", unformat_l2_output_next_index,
&hit_next_index))
;
else if (unformat (input, "acl-hit-next %U", unformat_acl_next_index,
}
static uword
-unformat_l2_next_node (unformat_input_t * input, va_list * args)
+unformat_l2_input_next_node (unformat_input_t * input, va_list * args)
{
vnet_classify_main_t * cm = &vnet_classify_main;
u32 * next_indexp = va_arg (*args, u32 *);
u32 node_index;
u32 next_index;
- if (unformat (input, "node %U", unformat_vlib_node,
+ if (unformat (input, "input-node %U", unformat_vlib_node,
cm->vlib_main, &node_index))
{
next_index = vlib_node_add_next
- (cm->vlib_main, l2_classify_node.index, node_index);
+ (cm->vlib_main, l2_input_classify_node.index, node_index);
*next_indexp = next_index;
return 1;
return 0;
}
+static uword
+unformat_l2_output_next_node (unformat_input_t * input, va_list * args)
+{
+ vnet_classify_main_t * cm = &vnet_classify_main;
+ u32 * next_indexp = va_arg (*args, u32 *);
+ u32 node_index;
+ u32 next_index;
+
+ if (unformat (input, "output-node %U", unformat_vlib_node,
+ cm->vlib_main, &node_index))
+ {
+ next_index = vlib_node_add_next
+ (cm->vlib_main, l2_output_classify_node.index, node_index);
+
+ *next_indexp = next_index;
+ return 1;
+ }
+ return 0;
+}
static clib_error_t *
vnet_classify_init (vlib_main_t * vm)
(unformat_ip_next_node);
vnet_classify_register_unformat_l2_next_index_fn
- (unformat_l2_next_node);
+ (unformat_l2_input_next_node);
+
+ vnet_classify_register_unformat_l2_next_index_fn
+ (unformat_l2_input_next_node);
+
+ vnet_classify_register_unformat_l2_next_index_fn
+ (unformat_l2_output_next_node);
vnet_classify_register_unformat_acl_next_index_fn
(unformat_acl_next_node);
* limitations under the License.
*/
-#ifndef __included_vnet_l2_classify_h__
-#define __included_vnet_l2_classify_h__
+#ifndef __included_vnet_l2_input_classify_h__
+#define __included_vnet_l2_input_classify_h__
#include <vlib/vlib.h>
#include <vnet/vnet.h>
#include <vnet/ip/ip6_packet.h>
#include <vlib/cli.h>
#include <vnet/l2/l2_input.h>
+#include <vnet/l2/l2_output.h>
#include <vnet/l2/feat_bitmap.h>
#include <vppinfra/error.h>
#include <vppinfra/hash.h>
typedef enum
{
- L2_CLASSIFY_NEXT_DROP,
- L2_CLASSIFY_NEXT_ETHERNET_INPUT,
- L2_CLASSIFY_NEXT_IP4_INPUT,
- L2_CLASSIFY_NEXT_IP6_INPUT,
- L2_CLASSIFY_NEXT_LI,
- L2_CLASSIFY_N_NEXT,
-} l2_classify_next_t;
+ L2_INPUT_CLASSIFY_NEXT_DROP,
+ L2_INPUT_CLASSIFY_NEXT_ETHERNET_INPUT,
+ L2_INPUT_CLASSIFY_NEXT_IP4_INPUT,
+ L2_INPUT_CLASSIFY_NEXT_IP6_INPUT,
+ L2_INPUT_CLASSIFY_NEXT_LI,
+ L2_INPUT_CLASSIFY_N_NEXT,
+} l2_input_classify_next_t;
typedef enum
{
- L2_CLASSIFY_TABLE_IP4,
- L2_CLASSIFY_TABLE_IP6,
- L2_CLASSIFY_TABLE_OTHER,
- L2_CLASSIFY_N_TABLES,
-} l2_classify_table_id_t;
+ L2_INPUT_CLASSIFY_TABLE_IP4,
+ L2_INPUT_CLASSIFY_TABLE_IP6,
+ L2_INPUT_CLASSIFY_TABLE_OTHER,
+ L2_INPUT_CLASSIFY_N_TABLES,
+} l2_input_classify_table_id_t;
-typedef struct
+typedef enum
{
+ L2_OUTPUT_CLASSIFY_NEXT_DROP,
+ L2_OUTPUT_CLASSIFY_N_NEXT,
+} l2_output_classify_next_t;
+typedef enum
+{
+ L2_OUTPUT_CLASSIFY_TABLE_IP4,
+ L2_OUTPUT_CLASSIFY_TABLE_IP6,
+ L2_OUTPUT_CLASSIFY_TABLE_OTHER,
+ L2_OUTPUT_CLASSIFY_N_TABLES,
+} l2_output_classify_table_id_t;
+
+typedef struct _l2_classify_main
+{
/* Next nodes for each feature */
u32 feat_next_node_index[32];
/* Per-address-family classifier table vectors */
- u32 *classify_table_index_by_sw_if_index[L2_CLASSIFY_N_TABLES];
+ u32 *classify_table_index_by_sw_if_index[L2_INPUT_CLASSIFY_N_TABLES];
+
+ /* 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;
vnet_classify_main_t *vnet_classify_main;
-} l2_classify_main_t;
+} l2_input_classify_main_t;
+
+typedef struct _l2_classify_main l2_output_classify_main_t;
+
+extern l2_input_classify_main_t l2_input_classify_main;
+extern vlib_node_registration_t l2_input_classify_node;
+
+extern l2_output_classify_main_t l2_output_classify_main;
+extern vlib_node_registration_t l2_output_classify_node;
-l2_classify_main_t l2_classify_main;
+void vnet_l2_input_classify_enable_disable (u32 sw_if_index,
+ int enable_disable);
-extern vlib_node_registration_t l2_classify_node;
+int vnet_l2_input_classify_set_tables (u32 sw_if_index, u32 ip4_table_index,
+ u32 ip6_table_index,
+ u32 other_table_index);
-void vnet_l2_classify_enable_disable (u32 sw_if_index, int enable_disable);
+void vnet_l2_output_classify_enable_disable (u32 sw_if_index,
+ int enable_disable);
-int vnet_l2_classify_set_tables (u32 sw_if_index, u32 ip4_table_index,
- u32 ip6_table_index, u32 other_table_index);
+int vnet_l2_output_classify_set_tables (u32 sw_if_index, u32 ip4_table_index,
+ u32 ip6_table_index,
+ u32 other_table_index);
-#endif /* __included_vnet_l2_classify_h__ */
+#endif /* __included_vnet_l2_input_classify_h__ */
/*
* fd.io coding-style-patch-verification: ON
config->output_sw_if_index = xc_sw_if_index;
/* Make sure last-chance drop is configured */
- config->feature_bitmap |= L2INPUT_FEAT_DROP | L2INPUT_FEAT_CLASSIFY;
+ config->feature_bitmap |=
+ L2INPUT_FEAT_DROP | L2INPUT_FEAT_INPUT_CLASSIFY;
/* Make sure bridging features are disabled */
config->feature_bitmap &=
#define foreach_l2_init_function \
_(feat_bitmap_drop_init) \
_(l2fib_init) \
-_(l2_classify_init) \
+_(l2_input_classify_init) \
_(l2bd_init) \
_(l2fwd_init) \
_(l2_inacl_init) \
/* Mappings from feature ID to graph node name */
#define foreach_l2input_feat \
_(DROP, "feature-bitmap-drop") \
- _(CLASSIFY, "l2-classify") \
_(XCONNECT, "l2-output") \
_(IPIW, "feature-bitmap-drop") \
_(FLOOD, "l2-flood") \
_(QOS, "feature-bitmap-drop") \
_(CFM, "feature-bitmap-drop") \
_(SPAN, "feature-bitmap-drop") \
- _(POLICER_CLAS, "l2-policer-classify")
+ _(POLICER_CLAS, "l2-policer-classify") \
+ _(INPUT_CLASSIFY, "l2-input-classify")
/* Feature bitmap positions */
typedef enum
#include <vnet/l2/l2_classify.h>
#include <vnet/api_errno.h>
+/**
+ * @file
+ * @brief L2 input classifier
+ *
+ * See also .../vnet/vnet/classify/vnet_classify.[ch]
+ */
+
+/**
+ * @brief l2_input_classifier packet trace record
+ */
typedef struct
{
- /* per-pkt trace data */
+ /** interface handle for the ith packet */
u32 sw_if_index;
+ /** graph arc index selected for this packet */
u32 next_index;
+ /** classifier table which provided the final result */
u32 table_index;
+ /** offset in classifier heap of the corresponding session */
u32 session_offset;
-} l2_classify_trace_t;
+} l2_input_classify_trace_t;
+/**
+ * @brief vlib node runtime
+ */
typedef struct
{
+ /** use-case independent main object pointer */
vnet_classify_main_t *vcm;
- l2_classify_main_t *l2cm;
-} l2_classify_runtime_t;
+ /** l2 input classifier main object pointer */
+ l2_input_classify_main_t *l2cm;
+} l2_input_classify_runtime_t;
-/* packet trace format function */
+/** packet trace format function */
static u8 *
-format_l2_classify_trace (u8 * s, va_list * args)
+format_l2_input_classify_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_classify_trace_t *t = va_arg (*args, l2_classify_trace_t *);
+ l2_input_classify_trace_t *t = va_arg (*args, l2_input_classify_trace_t *);
s = format (s, "l2-classify: sw_if_index %d, table %d, offset %x, next %d",
t->sw_if_index, t->table_index, t->session_offset,
return s;
}
-l2_classify_main_t l2_classify_main;
+/** l2 input classifier main data structure */
+l2_input_classify_main_t l2_input_classify_main;
-vlib_node_registration_t l2_classify_node;
+vlib_node_registration_t l2_input_classify_node;
-#define foreach_l2_classify_error \
+#define foreach_l2_input_classify_error \
_(MISS, "Classify misses") \
_(HIT, "Classify hits") \
_(CHAIN_HIT, "Classify hits after chain walk") \
typedef enum
{
-#define _(sym,str) L2_CLASSIFY_ERROR_##sym,
- foreach_l2_classify_error
+#define _(sym,str) L2_INPUT_CLASSIFY_ERROR_##sym,
+ foreach_l2_input_classify_error
#undef _
- L2_CLASSIFY_N_ERROR,
-} l2_classify_error_t;
+ L2_INPUT_CLASSIFY_N_ERROR,
+} l2_input_classify_error_t;
-static char *l2_classify_error_strings[] = {
+static char *l2_input_classify_error_strings[] = {
#define _(sym,string) string,
- foreach_l2_classify_error
+ foreach_l2_input_classify_error
#undef _
};
+/**
+ * @brief l2 input classifier node.
+ * @node l2-input-classify
+ *
+ * This is the l2 input classifier dispatch node
+ *
+ * @param vm vlib_main_t corresponding to the current thread.
+ * @param node vlib_node_runtime_t data for this node.
+ * @param frame vlib_frame_t whose contents should be dispatched.
+ *
+ * @par Graph mechanics: buffer metadata, next index usage
+ *
+ * @em Uses:
+ * - <code>(l2_input_classify_runtime_t *)
+ * rt->classify_table_index_by_sw_if_index</code>
+ * Head of the per-interface, perprotocol classifier table chain
+ * for a specific interface. ~0 => send pkts to the next
+ * feature in the L2 feature chain.
+ * - <code>vnet_buffer(b)->sw_if_index[VLIB_RX]</code>
+ * - Indicates the @c sw_if_index value of the interface that the
+ * packet was received on.
+ * - <code>vnet_buffer (b0)->l2.feature_bitmap</code>
+ * - Used to steer packets across l2 features enabled on the interface
+ * - <code>(vnet_classify_entry_t) e0->next_index</code>
+ * - Used to steer traffic when the classifier hits on a session
+ * - <code>(vnet_classify_entry_t) e0->advance</code>
+ * - Signed quantity applied via <code>vlib_buffer_advance</code>
+ * when the classifier hits on a session
+ * - <code>(vnet_classify_table_t) t0->miss_next_index</code>
+ * - Used to steer traffic when the classifier misses
+ *
+ * @em Sets:
+ * - <code>vnet_buffer (b0)->l2_classify.table_index</code>
+ * - Classifier table index of the first classifier table in
+ * the classifier table chain
+ * - <code>vnet_buffer (b0)->l2_classify.hash</code>
+ * - Bounded-index extensible hash corresponding to the
+ * masked fields in the current packet
+ * - <code>vnet_buffer (b0)->l2.feature_bitmap</code>
+ * - Used to steer packets across l2 features enabled on the interface
+ * - <code>vnet_buffer (b0)->l2_classify.opaque_index</code>
+ * - Copied from the classifier session object upon classifier hit
+ *
+ * @em Counters:
+ * - <code>L2_INPUT_CLASSIFY_ERROR_MISS</code> Classifier misses
+ * - <code>L2_INPUT_CLASSIFY_ERROR_HIT</code> Classifier hits
+ * - <code>L2_INPUT_CLASSIFY_ERROR_CHAIN_HIT</code>
+ * Classifier hits in other than the first table
+ */
+
static uword
-l2_classify_node_fn (vlib_main_t * vm,
- vlib_node_runtime_t * node, vlib_frame_t * frame)
+l2_input_classify_node_fn (vlib_main_t * vm,
+ vlib_node_runtime_t * node, vlib_frame_t * frame)
{
u32 n_left_from, *from, *to_next;
- l2_classify_next_t next_index;
- l2_classify_main_t *cm = &l2_classify_main;
+ l2_input_classify_next_t next_index;
+ l2_input_classify_main_t *cm = &l2_input_classify_main;
vnet_classify_main_t *vcm = cm->vnet_classify_main;
- l2_classify_runtime_t *rt = (l2_classify_runtime_t *) node->runtime_data;
+ l2_input_classify_runtime_t *rt =
+ (l2_input_classify_runtime_t *) node->runtime_data;
u32 feature_bitmap;
u32 hits = 0;
u32 misses = 0;
type1 = clib_net_to_host_u16 (h1->type);
type_index0 = (type0 == ETHERNET_TYPE_IP4)
- ? L2_CLASSIFY_TABLE_IP4 : L2_CLASSIFY_TABLE_OTHER;
+ ? L2_INPUT_CLASSIFY_TABLE_IP4 : L2_INPUT_CLASSIFY_TABLE_OTHER;
type_index0 = (type0 == ETHERNET_TYPE_IP6)
- ? L2_CLASSIFY_TABLE_IP6 : type_index0;
+ ? L2_INPUT_CLASSIFY_TABLE_IP6 : type_index0;
type_index1 = (type1 == ETHERNET_TYPE_IP4)
- ? L2_CLASSIFY_TABLE_IP4 : L2_CLASSIFY_TABLE_OTHER;
+ ? L2_INPUT_CLASSIFY_TABLE_IP4 : L2_INPUT_CLASSIFY_TABLE_OTHER;
type_index1 = (type1 == ETHERNET_TYPE_IP6)
- ? L2_CLASSIFY_TABLE_IP6 : type_index1;
+ ? L2_INPUT_CLASSIFY_TABLE_IP6 : type_index1;
vnet_buffer (b0)->l2_classify.table_index =
table_index0 =
type0 = clib_net_to_host_u16 (h0->type);
type_index0 = (type0 == ETHERNET_TYPE_IP4)
- ? L2_CLASSIFY_TABLE_IP4 : L2_CLASSIFY_TABLE_OTHER;
+ ? L2_INPUT_CLASSIFY_TABLE_IP4 : L2_INPUT_CLASSIFY_TABLE_OTHER;
type_index0 = (type0 == ETHERNET_TYPE_IP6)
- ? L2_CLASSIFY_TABLE_IP6 : type_index0;
+ ? L2_INPUT_CLASSIFY_TABLE_IP6 : type_index0;
vnet_buffer (b0)->l2_classify.table_index =
table_index0 = rt->l2cm->classify_table_index_by_sw_if_index
{
u32 bi0;
vlib_buffer_t *b0;
- u32 next0 = L2_CLASSIFY_NEXT_ETHERNET_INPUT;
+ u32 next0 = ~0; /* next l2 input feature, please... */
ethernet_header_t *h0;
u32 table_index0;
u64 hash0;
e0 = 0;
vnet_buffer (b0)->l2_classify.opaque_index = ~0;
+ /* Remove ourself from the feature bitmap */
+ feature_bitmap = vnet_buffer (b0)->l2.feature_bitmap
+ & ~L2INPUT_FEAT_INPUT_CLASSIFY;
+
+ /* save for next feature graph nodes */
+ vnet_buffer (b0)->l2.feature_bitmap = feature_bitmap;
+
if (PREDICT_TRUE (table_index0 != ~0))
{
hash0 = vnet_buffer (b0)->l2_classify.hash;
}
if (PREDICT_FALSE (next0 == 0))
- b0->error = node->errors[L2_CLASSIFY_ERROR_DROP];
+ b0->error = node->errors[L2_INPUT_CLASSIFY_ERROR_DROP];
- if (PREDICT_FALSE (next0 == ~0))
+ if (PREDICT_TRUE (next0 == ~0))
{
-
- // Remove ourself from the feature bitmap
- feature_bitmap = vnet_buffer (b0)->l2.feature_bitmap
- & ~L2INPUT_FEAT_CLASSIFY;
-
- // save for next feature graph nodes
- vnet_buffer (b0)->l2.feature_bitmap = feature_bitmap;
-
// Determine the next node
next0 =
feat_bitmap_get_next_node_index (cm->feat_next_node_index,
if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE)
&& (b0->flags & VLIB_BUFFER_IS_TRACED)))
{
- l2_classify_trace_t *t =
+ l2_input_classify_trace_t *t =
vlib_add_trace (vm, node, b0, sizeof (*t));
t->sw_if_index = vnet_buffer (b0)->sw_if_index[VLIB_RX];
t->table_index = table_index0;
}
vlib_node_increment_counter (vm, node->node_index,
- L2_CLASSIFY_ERROR_MISS, misses);
+ L2_INPUT_CLASSIFY_ERROR_MISS, misses);
vlib_node_increment_counter (vm, node->node_index,
- L2_CLASSIFY_ERROR_HIT, hits);
+ L2_INPUT_CLASSIFY_ERROR_HIT, hits);
vlib_node_increment_counter (vm, node->node_index,
- L2_CLASSIFY_ERROR_CHAIN_HIT, chain_hits);
+ L2_INPUT_CLASSIFY_ERROR_CHAIN_HIT, chain_hits);
return frame->n_vectors;
}
/* *INDENT-OFF* */
-VLIB_REGISTER_NODE (l2_classify_node) = {
- .function = l2_classify_node_fn,
- .name = "l2-classify",
+VLIB_REGISTER_NODE (l2_input_classify_node) = {
+ .function = l2_input_classify_node_fn,
+ .name = "l2-input-classify",
.vector_size = sizeof (u32),
- .format_trace = format_l2_classify_trace,
+ .format_trace = format_l2_input_classify_trace,
.type = VLIB_NODE_TYPE_INTERNAL,
- .n_errors = ARRAY_LEN(l2_classify_error_strings),
- .error_strings = l2_classify_error_strings,
+ .n_errors = ARRAY_LEN(l2_input_classify_error_strings),
+ .error_strings = l2_input_classify_error_strings,
- .runtime_data_bytes = sizeof (l2_classify_runtime_t),
+ .runtime_data_bytes = sizeof (l2_input_classify_runtime_t),
- .n_next_nodes = L2_CLASSIFY_N_NEXT,
+ .n_next_nodes = L2_INPUT_CLASSIFY_N_NEXT,
/* edit / add dispositions here */
.next_nodes = {
- [L2_CLASSIFY_NEXT_DROP] = "error-drop",
- [L2_CLASSIFY_NEXT_ETHERNET_INPUT] = "ethernet-input-not-l2",
- [L2_CLASSIFY_NEXT_IP4_INPUT] = "ip4-input",
- [L2_CLASSIFY_NEXT_IP6_INPUT] = "ip6-input",
- [L2_CLASSIFY_NEXT_LI] = "li-hit",
+ [L2_INPUT_CLASSIFY_NEXT_DROP] = "error-drop",
+ [L2_INPUT_CLASSIFY_NEXT_ETHERNET_INPUT] = "ethernet-input-not-l2",
+ [L2_INPUT_CLASSIFY_NEXT_IP4_INPUT] = "ip4-input",
+ [L2_INPUT_CLASSIFY_NEXT_IP6_INPUT] = "ip6-input",
+ [L2_INPUT_CLASSIFY_NEXT_LI] = "li-hit",
},
};
/* *INDENT-ON* */
-VLIB_NODE_FUNCTION_MULTIARCH (l2_classify_node, l2_classify_node_fn)
- clib_error_t *l2_classify_init (vlib_main_t * vm)
+VLIB_NODE_FUNCTION_MULTIARCH (l2_input_classify_node,
+ l2_input_classify_node_fn);
+
+/** l2 input classsifier feature initialization */
+clib_error_t *
+l2_input_classify_init (vlib_main_t * vm)
{
- l2_classify_main_t *cm = &l2_classify_main;
- l2_classify_runtime_t *rt;
+ l2_input_classify_main_t *cm = &l2_input_classify_main;
+ l2_input_classify_runtime_t *rt;
- rt = vlib_node_get_runtime_data (vm, l2_classify_node.index);
+ rt = vlib_node_get_runtime_data (vm, l2_input_classify_node.index);
cm->vlib_main = vm;
cm->vnet_main = vnet_get_main ();
/* Initialize the feature next-node indexes */
feat_bitmap_init_next_nodes (vm,
- l2_classify_node.index,
+ l2_input_classify_node.index,
L2INPUT_N_FEAT,
l2input_get_feat_names (),
cm->feat_next_node_index);
return 0;
}
-VLIB_INIT_FUNCTION (l2_classify_init);
+VLIB_INIT_FUNCTION (l2_input_classify_init);
+/** enable/disable l2 input classification on a specific interface */
void
-vnet_l2_classify_enable_disable (u32 sw_if_index, int enable_disable)
+vnet_l2_input_classify_enable_disable (u32 sw_if_index, int enable_disable)
{
- vlib_main_t *vm = vlib_get_main ();
- vnet_main_t *vnm = vnet_get_main ();
-
- if (enable_disable)
- set_int_l2_mode (vm, vnm, MODE_L2_CLASSIFY, sw_if_index, 0, 0, 0, 0);
- else
- set_int_l2_mode (vm, vnm, MODE_L3, sw_if_index, 0, 0, 0, 0);
+ l2input_intf_bitmap_enable (sw_if_index, L2INPUT_FEAT_INPUT_CLASSIFY,
+ (u32) enable_disable);
}
+/** @brief Set l2 per-protocol, per-interface input classification tables
+ *
+ * @param sw_if_index interface handle
+ * @param ip4_table_index ip4 classification table index, or ~0
+ * @param ip6_table_index ip6 classification table index, or ~0
+ * @param other_table_index non-ip4, non-ip6 classification table index,
+ * or ~0
+ * @returns 0 on success, VNET_API_ERROR_NO_SUCH_TABLE, TABLE2, TABLE3
+ * if the indicated (non-~0) table does not exist.
+ */
+
int
-vnet_l2_classify_set_tables (u32 sw_if_index,
- u32 ip4_table_index,
- u32 ip6_table_index, u32 other_table_index)
+vnet_l2_input_classify_set_tables (u32 sw_if_index,
+ u32 ip4_table_index,
+ u32 ip6_table_index, u32 other_table_index)
{
- l2_classify_main_t *cm = &l2_classify_main;
+ l2_input_classify_main_t *cm = &l2_input_classify_main;
vnet_classify_main_t *vcm = cm->vnet_classify_main;
/* Assume that we've validated sw_if_index in the API layer */
return VNET_API_ERROR_NO_SUCH_TABLE3;
vec_validate
- (cm->classify_table_index_by_sw_if_index[L2_CLASSIFY_TABLE_IP4],
+ (cm->classify_table_index_by_sw_if_index[L2_INPUT_CLASSIFY_TABLE_IP4],
sw_if_index);
vec_validate
- (cm->classify_table_index_by_sw_if_index[L2_CLASSIFY_TABLE_IP6],
+ (cm->classify_table_index_by_sw_if_index[L2_INPUT_CLASSIFY_TABLE_IP6],
sw_if_index);
vec_validate
- (cm->classify_table_index_by_sw_if_index[L2_CLASSIFY_TABLE_OTHER],
+ (cm->classify_table_index_by_sw_if_index[L2_INPUT_CLASSIFY_TABLE_OTHER],
sw_if_index);
- cm->classify_table_index_by_sw_if_index[L2_CLASSIFY_TABLE_IP4]
+ cm->classify_table_index_by_sw_if_index[L2_INPUT_CLASSIFY_TABLE_IP4]
[sw_if_index] = ip4_table_index;
- cm->classify_table_index_by_sw_if_index[L2_CLASSIFY_TABLE_IP6]
+ cm->classify_table_index_by_sw_if_index[L2_INPUT_CLASSIFY_TABLE_IP6]
[sw_if_index] = ip6_table_index;
- cm->classify_table_index_by_sw_if_index[L2_CLASSIFY_TABLE_OTHER]
+ cm->classify_table_index_by_sw_if_index[L2_INPUT_CLASSIFY_TABLE_OTHER]
[sw_if_index] = other_table_index;
return 0;
}
static clib_error_t *
-int_l2_classify_command_fn (vlib_main_t * vm,
- unformat_input_t * input,
- vlib_cli_command_t * cmd)
+int_l2_input_classify_command_fn (vlib_main_t * vm,
+ unformat_input_t * input,
+ vlib_cli_command_t * cmd)
{
vnet_main_t *vnm = vnet_get_main ();
u32 sw_if_index = ~0;
&& other_table_index == ~0)
{
vlib_cli_output (vm, "L2 classification disabled");
- vnet_l2_classify_enable_disable (sw_if_index, 0 /* enable */ );
+ vnet_l2_input_classify_enable_disable (sw_if_index, 0 /* enable */ );
return 0;
}
- rv = vnet_l2_classify_set_tables (sw_if_index, ip4_table_index,
- ip6_table_index, other_table_index);
+ rv = vnet_l2_input_classify_set_tables (sw_if_index, ip4_table_index,
+ ip6_table_index, other_table_index);
switch (rv)
{
case 0:
- vnet_l2_classify_enable_disable (sw_if_index, 1 /* enable */ );
+ vnet_l2_input_classify_enable_disable (sw_if_index, 1 /* enable */ );
break;
default:
- return clib_error_return (0, "vnet_l2_classify_set_tables: %d", rv);
+ return clib_error_return (0, "vnet_l2_input_classify_set_tables: %d",
+ rv);
break;
}
return 0;
}
+/*?
+ * Configure l2 input classification.
+ *
+ * @cliexpar
+ * @cliexstart {set interface l2 input classify intfc <interface-name>
+ * [ip4-table <index>]
+ * [ip6-table <index>]
+ * [other-table <index>]}
+ * @cliexend
+ ?*/
+
/* *INDENT-OFF* */
-VLIB_CLI_COMMAND (int_l2_classify_cli, static) = {
- .path = "set interface l2 classify",
+VLIB_CLI_COMMAND (int_l2_input_classify_cli, static) = {
+ .path = "set interface l2 input classify",
.short_help =
- "set interface l2 classify intfc <int> [ip4-table <n>]\n"
+ "set interface l2 input classify intfc <int> [ip4-table <n>]\n"
" [ip6-table <n>] [other-table <n>]",
- .function = int_l2_classify_command_fn,
+ .function = int_l2_input_classify_command_fn,
};
/* *INDENT-ON* */
-
-
/*
* fd.io coding-style-patch-verification: ON
*
_(IPIW, "feature-bitmap-drop") \
_(STP_BLOCKED, "feature-bitmap-drop") \
_(LINESTATUS_DOWN, "feature-bitmap-drop") \
+ _(OUTPUT_CLASSIFY, "l2-output-classify") \
_(XCRW, "l2-xcrw")
/* Feature bitmap positions */
--- /dev/null
+/*
+ * Copyright (c) 2015 Cisco and/or its affiliates.
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at:
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+/*
+ * l2_classify.c
+ */
+
+#include <vnet/l2/l2_classify.h>
+#include <vnet/api_errno.h>
+
+/**
+ * @file
+ * @brief L2 input classifier
+ *
+ * See also .../vnet/vnet/classify/vnet_classify.[ch]
+ */
+
+typedef struct
+{
+ /** interface handle for the ith packet */
+ u32 sw_if_index;
+ /** graph arc index selected for this packet */
+ u32 next_index;
+ /** classifier table which provided the final result */
+ u32 table_index;
+ /** offset in classifier heap of the corresponding session */
+ u32 session_offset;
+} l2_output_classify_trace_t;
+
+typedef struct
+{
+ /** use-case independent main object pointer */
+ vnet_classify_main_t *vcm;
+ /** l2 input classifier main object pointer */
+ l2_output_classify_main_t *l2cm;
+} l2_output_classify_runtime_t;
+
+/** packet trace format function */
+static u8 *
+format_l2_output_classify_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_output_classify_trace_t *t =
+ va_arg (*args, l2_output_classify_trace_t *);
+
+ s = format (s, "l2-classify: sw_if_index %d, table %d, offset %x, next %d",
+ t->sw_if_index, t->table_index, t->session_offset,
+ t->next_index);
+ return s;
+}
+
+/** l2 output classifier main data structure */
+l2_output_classify_main_t l2_output_classify_main;
+
+vlib_node_registration_t l2_output_classify_node;
+
+#define foreach_l2_output_classify_error \
+_(MISS, "Classify misses") \
+_(HIT, "Classify hits") \
+_(CHAIN_HIT, "Classify hits after chain walk") \
+_(DROP, "L2 Classify Drops")
+
+typedef enum
+{
+#define _(sym,str) L2_OUTPUT_CLASSIFY_ERROR_##sym,
+ foreach_l2_output_classify_error
+#undef _
+ L2_OUTPUT_CLASSIFY_N_ERROR,
+} l2_output_classify_error_t;
+
+static char *l2_output_classify_error_strings[] = {
+#define _(sym,string) string,
+ foreach_l2_output_classify_error
+#undef _
+};
+
+/**
+ * @brief l2 output classifier node.
+ * @node l2-output-classify
+ *
+ * This is the l2 output classifier dispatch node
+ *
+ * @param vm vlib_main_t corresponding to the current thread.
+ * @param node vlib_node_runtime_t data for this node.
+ * @param frame vlib_frame_t whose contents should be dispatched.
+ *
+ * @par Graph mechanics: buffer metadata, next index usage
+ *
+ * @em Uses:
+ * - <code>(l2_input_classify_runtime_t *)
+ * rt->classify_table_index_by_sw_if_index</code>
+ * Head of the per-interface, perprotocol classifier table chain
+ * for a specific interface. ~0 => send pkts to the next
+ * feature in the L2 feature chain.
+ * - <code>vnet_buffer(b)->sw_if_index[VLIB_RX]</code>
+ * - Indicates the @c sw_if_index value of the interface that the
+ * packet was received on.
+ * - <code>vnet_buffer (b0)->l2.feature_bitmap</code>
+ * - Used to steer packets across l2 features enabled on the interface
+ * - <code>(vnet_classify_entry_t) e0->next_index</code>
+ * - Used to steer traffic when the classifier hits on a session
+ * - <code>(vnet_classify_entry_t) e0->advance</code>
+ * - Signed quantity applied via <code>vlib_buffer_advance</code>
+ * when the classifier hits on a session
+ * - <code>(vnet_classify_table_t) t0->miss_next_index</code>
+ * - Used to steer traffic when the classifier misses
+ *
+ * @em Sets:
+ * - <code>vnet_buffer (b0)->l2_classify.table_index</code>
+ * - Classifier table index of the first classifier table in
+ * the classifier table chain
+ * - <code>vnet_buffer (b0)->l2_classify.hash</code>
+ * - Bounded-index extensible hash corresponding to the
+ * masked fields in the current packet
+ * - <code>vnet_buffer (b0)->l2.feature_bitmap</code>
+ * - Used to steer packets across l2 features enabled on the interface
+ * - <code>vnet_buffer (b0)->l2_classify.opaque_index</code>
+ * - Copied from the classifier session object upon classifier hit
+ *
+ * @em Counters:
+ * - <code>L2_OUTPUT_CLASSIFY_ERROR_MISS</code> Classifier misses
+ * - <code>L2_OUTPUT_CLASSIFY_ERROR_HIT</code> Classifier hits
+ * - <code>L2_OUTPUT_CLASSIFY_ERROR_CHAIN_HIT</code>
+ * Classifier hits in other than the first table
+ */
+
+static uword
+l2_output_classify_node_fn (vlib_main_t * vm,
+ vlib_node_runtime_t * node, vlib_frame_t * frame)
+{
+ u32 n_left_from, *from, *to_next;
+ l2_output_classify_next_t next_index;
+ l2_output_classify_main_t *cm = &l2_output_classify_main;
+ vnet_classify_main_t *vcm = cm->vnet_classify_main;
+ l2_output_classify_runtime_t *rt =
+ (l2_output_classify_runtime_t *) node->runtime_data;
+ u32 feature_bitmap0;
+ u32 hits = 0;
+ u32 misses = 0;
+ u32 chain_hits = 0;
+ f64 now;
+ u32 n_next_nodes;
+ u32 cached_sw_if_index = (u32) ~ 0;
+ u32 cached_next_index = (u32) ~ 0;
+ u32 sw_if_index0;
+
+ n_next_nodes = node->n_next_nodes;
+
+ now = vlib_time_now (vm);
+
+ n_left_from = frame->n_vectors;
+ from = vlib_frame_vector_args (frame);
+
+ /* First pass: compute hash */
+
+ while (n_left_from > 2)
+ {
+ vlib_buffer_t *b0, *b1;
+ u32 bi0, bi1;
+ ethernet_header_t *h0, *h1;
+ u32 sw_if_index0, sw_if_index1;
+ u16 type0, type1;
+ int type_index0, type_index1;
+ vnet_classify_table_t *t0, *t1;
+ u32 table_index0, table_index1;
+ u64 hash0, hash1;
+
+
+ /* prefetch next iteration */
+ {
+ vlib_buffer_t *p1, *p2;
+
+ p1 = vlib_get_buffer (vm, from[1]);
+ p2 = vlib_get_buffer (vm, from[2]);
+
+ vlib_prefetch_buffer_header (p1, STORE);
+ CLIB_PREFETCH (p1->data, CLIB_CACHE_LINE_BYTES, STORE);
+ vlib_prefetch_buffer_header (p2, STORE);
+ CLIB_PREFETCH (p2->data, CLIB_CACHE_LINE_BYTES, STORE);
+ }
+
+ bi0 = from[0];
+ b0 = vlib_get_buffer (vm, bi0);
+ h0 = vlib_buffer_get_current (b0);
+
+ bi1 = from[1];
+ b1 = vlib_get_buffer (vm, bi1);
+ h1 = vlib_buffer_get_current (b1);
+
+ sw_if_index0 = vnet_buffer (b0)->sw_if_index[VLIB_RX];
+ vnet_buffer (b0)->l2_classify.table_index = ~0;
+
+ sw_if_index1 = vnet_buffer (b1)->sw_if_index[VLIB_RX];
+ vnet_buffer (b1)->l2_classify.table_index = ~0;
+
+ /* Select classifier table based on ethertype */
+ type0 = clib_net_to_host_u16 (h0->type);
+ type1 = clib_net_to_host_u16 (h1->type);
+
+ type_index0 = (type0 == ETHERNET_TYPE_IP4)
+ ? L2_OUTPUT_CLASSIFY_TABLE_IP4 : L2_OUTPUT_CLASSIFY_TABLE_OTHER;
+ type_index0 = (type0 == ETHERNET_TYPE_IP6)
+ ? L2_OUTPUT_CLASSIFY_TABLE_IP6 : type_index0;
+
+ type_index1 = (type1 == ETHERNET_TYPE_IP4)
+ ? L2_OUTPUT_CLASSIFY_TABLE_IP4 : L2_OUTPUT_CLASSIFY_TABLE_OTHER;
+ type_index1 = (type1 == ETHERNET_TYPE_IP6)
+ ? L2_OUTPUT_CLASSIFY_TABLE_IP6 : type_index1;
+
+ vnet_buffer (b0)->l2_classify.table_index =
+ table_index0 =
+ rt->l2cm->classify_table_index_by_sw_if_index
+ [type_index0][sw_if_index0];
+
+ if (table_index0 != ~0)
+ {
+ t0 = pool_elt_at_index (vcm->tables, table_index0);
+
+ vnet_buffer (b0)->l2_classify.hash = hash0 =
+ vnet_classify_hash_packet (t0, (u8 *) h0);
+ vnet_classify_prefetch_bucket (t0, hash0);
+ }
+
+ vnet_buffer (b1)->l2_classify.table_index =
+ table_index1 =
+ rt->l2cm->classify_table_index_by_sw_if_index
+ [type_index1][sw_if_index1];
+
+ if (table_index1 != ~0)
+ {
+ t1 = pool_elt_at_index (vcm->tables, table_index1);
+
+ vnet_buffer (b1)->l2_classify.hash = hash1 =
+ vnet_classify_hash_packet (t1, (u8 *) h1);
+ vnet_classify_prefetch_bucket (t1, hash1);
+ }
+
+ from += 2;
+ n_left_from -= 2;
+ }
+
+ while (n_left_from > 0)
+ {
+ vlib_buffer_t *b0;
+ u32 bi0;
+ ethernet_header_t *h0;
+ u16 type0;
+ u32 type_index0;
+ vnet_classify_table_t *t0;
+ u32 table_index0;
+ u64 hash0;
+
+ bi0 = from[0];
+ b0 = vlib_get_buffer (vm, bi0);
+ h0 = vlib_buffer_get_current (b0);
+
+ sw_if_index0 = vnet_buffer (b0)->sw_if_index[VLIB_RX];
+ vnet_buffer (b0)->l2_classify.table_index = ~0;
+
+ /* Select classifier table based on ethertype */
+ type0 = clib_net_to_host_u16 (h0->type);
+
+ type_index0 = (type0 == ETHERNET_TYPE_IP4)
+ ? L2_OUTPUT_CLASSIFY_TABLE_IP4 : L2_OUTPUT_CLASSIFY_TABLE_OTHER;
+ type_index0 = (type0 == ETHERNET_TYPE_IP6)
+ ? L2_OUTPUT_CLASSIFY_TABLE_IP6 : type_index0;
+
+ vnet_buffer (b0)->l2_classify.table_index =
+ table_index0 = rt->l2cm->classify_table_index_by_sw_if_index
+ [type_index0][sw_if_index0];
+
+ if (table_index0 != ~0)
+ {
+ t0 = pool_elt_at_index (vcm->tables, table_index0);
+
+ vnet_buffer (b0)->l2_classify.hash = hash0 =
+ vnet_classify_hash_packet (t0, (u8 *) h0);
+ vnet_classify_prefetch_bucket (t0, hash0);
+ }
+ from++;
+ n_left_from--;
+ }
+
+ next_index = node->cached_next_index;
+ from = vlib_frame_vector_args (frame);
+ n_left_from = frame->n_vectors;
+
+ while (n_left_from > 0)
+ {
+ u32 n_left_to_next;
+
+ vlib_get_next_frame (vm, node, next_index, to_next, n_left_to_next);
+
+ /* Not enough load/store slots to dual loop... */
+ while (n_left_from > 0 && n_left_to_next > 0)
+ {
+ u32 bi0;
+ vlib_buffer_t *b0;
+ u32 next0 = ~0;
+ ethernet_header_t *h0;
+ u32 table_index0;
+ u64 hash0;
+ vnet_classify_table_t *t0;
+ vnet_classify_entry_t *e0;
+
+ if (PREDICT_TRUE (n_left_from > 2))
+ {
+ vlib_buffer_t *p2 = vlib_get_buffer (vm, from[2]);
+ u64 phash2;
+ u32 table_index2;
+ vnet_classify_table_t *tp2;
+
+ /*
+ * Prefetch table entry two ahead. Buffer / data
+ * were prefetched above...
+ */
+ table_index2 = vnet_buffer (p2)->l2_classify.table_index;
+
+ if (PREDICT_TRUE (table_index2 != ~0))
+ {
+ tp2 = pool_elt_at_index (vcm->tables, table_index2);
+ phash2 = vnet_buffer (p2)->l2_classify.hash;
+ vnet_classify_prefetch_entry (tp2, phash2);
+ }
+ }
+
+ /* speculatively enqueue b0 to the current next frame */
+ bi0 = from[0];
+ to_next[0] = bi0;
+ from += 1;
+ to_next += 1;
+ n_left_from -= 1;
+ n_left_to_next -= 1;
+
+ b0 = vlib_get_buffer (vm, bi0);
+ h0 = vlib_buffer_get_current (b0);
+ table_index0 = vnet_buffer (b0)->l2_classify.table_index;
+ e0 = 0;
+ vnet_buffer (b0)->l2_classify.opaque_index = ~0;
+ /* Remove ourself from the feature bitmap */
+ feature_bitmap0 = vnet_buffer (b0)->l2.feature_bitmap
+ & ~L2OUTPUT_FEAT_OUTPUT_CLASSIFY;
+
+ /* save for next feature graph nodes */
+ vnet_buffer (b0)->l2.feature_bitmap = feature_bitmap0;
+
+ if (PREDICT_TRUE (table_index0 != ~0))
+ {
+ hash0 = vnet_buffer (b0)->l2_classify.hash;
+ t0 = pool_elt_at_index (vcm->tables, table_index0);
+
+ e0 = vnet_classify_find_entry (t0, (u8 *) h0, hash0, now);
+ if (e0)
+ {
+ vnet_buffer (b0)->l2_classify.opaque_index
+ = e0->opaque_index;
+ vlib_buffer_advance (b0, e0->advance);
+ next0 = (e0->next_index < n_next_nodes) ?
+ e0->next_index : next0;
+ hits++;
+ }
+ else
+ {
+ while (1)
+ {
+ if (t0->next_table_index != ~0)
+ t0 = pool_elt_at_index (vcm->tables,
+ t0->next_table_index);
+ else
+ {
+ next0 = (t0->miss_next_index < n_next_nodes) ?
+ t0->miss_next_index : next0;
+ misses++;
+ break;
+ }
+
+ hash0 = vnet_classify_hash_packet (t0, (u8 *) h0);
+ e0 =
+ vnet_classify_find_entry (t0, (u8 *) h0, hash0, now);
+ if (e0)
+ {
+ vnet_buffer (b0)->l2_classify.opaque_index
+ = e0->opaque_index;
+ vlib_buffer_advance (b0, e0->advance);
+ next0 = (e0->next_index < n_next_nodes) ?
+ e0->next_index : next0;
+ hits++;
+ chain_hits++;
+ break;
+ }
+ }
+ }
+ }
+
+ if (PREDICT_FALSE (next0 == 0))
+ b0->error = node->errors[L2_OUTPUT_CLASSIFY_ERROR_DROP];
+
+ if (PREDICT_FALSE (next0 == ~0))
+ {
+ sw_if_index0 = vnet_buffer (b0)->sw_if_index[VLIB_TX];
+
+ /* Determine next node */
+ l2_output_dispatch (cm->vlib_main,
+ cm->vnet_main,
+ node,
+ l2_output_classify_node.index,
+ &cached_sw_if_index,
+ &cached_next_index,
+ &cm->next_nodes,
+ b0, sw_if_index0, feature_bitmap0, &next0);
+ }
+
+ if (PREDICT_FALSE ((node->flags & VLIB_NODE_FLAG_TRACE)
+ && (b0->flags & VLIB_BUFFER_IS_TRACED)))
+ {
+ l2_output_classify_trace_t *t =
+ vlib_add_trace (vm, node, b0, sizeof (*t));
+ t->sw_if_index = vnet_buffer (b0)->sw_if_index[VLIB_RX];
+ t->table_index = table_index0;
+ t->next_index = next0;
+ t->session_offset = e0 ? vnet_classify_get_offset (t0, e0) : 0;
+ }
+
+ /* 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);
+ }
+
+ vlib_put_next_frame (vm, node, next_index, n_left_to_next);
+ }
+
+ vlib_node_increment_counter (vm, node->node_index,
+ L2_OUTPUT_CLASSIFY_ERROR_MISS, misses);
+ vlib_node_increment_counter (vm, node->node_index,
+ L2_OUTPUT_CLASSIFY_ERROR_HIT, hits);
+ vlib_node_increment_counter (vm, node->node_index,
+ L2_OUTPUT_CLASSIFY_ERROR_CHAIN_HIT,
+ chain_hits);
+ return frame->n_vectors;
+}
+
+/* *INDENT-OFF* */
+VLIB_REGISTER_NODE (l2_output_classify_node) = {
+ .function = l2_output_classify_node_fn,
+ .name = "l2-output-classify",
+ .vector_size = sizeof (u32),
+ .format_trace = format_l2_output_classify_trace,
+ .type = VLIB_NODE_TYPE_INTERNAL,
+
+ .n_errors = ARRAY_LEN(l2_output_classify_error_strings),
+ .error_strings = l2_output_classify_error_strings,
+
+ .runtime_data_bytes = sizeof (l2_output_classify_runtime_t),
+
+ .n_next_nodes = L2_OUTPUT_CLASSIFY_N_NEXT,
+
+ /* edit / add dispositions here */
+ .next_nodes = {
+ [L2_OUTPUT_CLASSIFY_NEXT_DROP] = "error-drop",
+ },
+};
+/* *INDENT-ON* */
+
+VLIB_NODE_FUNCTION_MULTIARCH (l2_output_classify_node,
+ l2_output_classify_node_fn);
+
+/** l2 output classsifier feature initialization */
+clib_error_t *
+l2_output_classify_init (vlib_main_t * vm)
+{
+ l2_output_classify_main_t *cm = &l2_output_classify_main;
+ l2_output_classify_runtime_t *rt;
+
+ rt = vlib_node_get_runtime_data (vm, l2_output_classify_node.index);
+
+ cm->vlib_main = vm;
+ cm->vnet_main = vnet_get_main ();
+ cm->vnet_classify_main = &vnet_classify_main;
+
+ /* Initialize the feature next-node indexes */
+ feat_bitmap_init_next_nodes (vm,
+ l2_output_classify_node.index,
+ L2OUTPUT_N_FEAT,
+ l2output_get_feat_names (),
+ cm->feat_next_node_index);
+ rt->l2cm = cm;
+ rt->vcm = cm->vnet_classify_main;
+
+ /* Initialize the output node mapping table */
+ l2output_init_output_node_vec (&cm->next_nodes.output_node_index_vec);
+
+ return 0;
+}
+
+VLIB_INIT_FUNCTION (l2_output_classify_init);
+
+/** enable/disable l2 input classification on a specific interface */
+void
+vnet_l2_output_classify_enable_disable (u32 sw_if_index, int enable_disable)
+{
+
+ l2output_intf_bitmap_enable (sw_if_index, L2OUTPUT_FEAT_OUTPUT_CLASSIFY,
+ (u32) enable_disable);
+}
+
+/** @brief Set l2 per-protocol, per-interface output classification tables
+ *
+ * @param sw_if_index interface handle
+ * @param ip4_table_index ip4 classification table index, or ~0
+ * @param ip6_table_index ip6 classification table index, or ~0
+ * @param other_table_index non-ip4, non-ip6 classification table index,
+ * or ~0
+ * @returns 0 on success, VNET_API_ERROR_NO_SUCH_TABLE, TABLE2, TABLE3
+ * if the indicated (non-~0) table does not exist.
+ */
+
+int
+vnet_l2_output_classify_set_tables (u32 sw_if_index,
+ u32 ip4_table_index,
+ u32 ip6_table_index,
+ u32 other_table_index)
+{
+ l2_output_classify_main_t *cm = &l2_output_classify_main;
+ vnet_classify_main_t *vcm = cm->vnet_classify_main;
+
+ /* Assume that we've validated sw_if_index in the API layer */
+
+ if (ip4_table_index != ~0 &&
+ pool_is_free_index (vcm->tables, ip4_table_index))
+ return VNET_API_ERROR_NO_SUCH_TABLE;
+
+ if (ip6_table_index != ~0 &&
+ pool_is_free_index (vcm->tables, ip6_table_index))
+ return VNET_API_ERROR_NO_SUCH_TABLE2;
+
+ if (other_table_index != ~0 &&
+ pool_is_free_index (vcm->tables, other_table_index))
+ return VNET_API_ERROR_NO_SUCH_TABLE3;
+
+ vec_validate
+ (cm->classify_table_index_by_sw_if_index[L2_OUTPUT_CLASSIFY_TABLE_IP4],
+ sw_if_index);
+
+ vec_validate
+ (cm->classify_table_index_by_sw_if_index[L2_OUTPUT_CLASSIFY_TABLE_IP6],
+ sw_if_index);
+
+ vec_validate
+ (cm->classify_table_index_by_sw_if_index[L2_OUTPUT_CLASSIFY_TABLE_OTHER],
+ sw_if_index);
+
+ cm->classify_table_index_by_sw_if_index[L2_OUTPUT_CLASSIFY_TABLE_IP4]
+ [sw_if_index] = ip4_table_index;
+
+ cm->classify_table_index_by_sw_if_index[L2_OUTPUT_CLASSIFY_TABLE_IP6]
+ [sw_if_index] = ip6_table_index;
+
+ cm->classify_table_index_by_sw_if_index[L2_OUTPUT_CLASSIFY_TABLE_OTHER]
+ [sw_if_index] = other_table_index;
+
+ return 0;
+}
+
+static clib_error_t *
+int_l2_output_classify_command_fn (vlib_main_t * vm,
+ unformat_input_t * input,
+ vlib_cli_command_t * cmd)
+{
+ vnet_main_t *vnm = vnet_get_main ();
+ u32 sw_if_index = ~0;
+ u32 ip4_table_index = ~0;
+ u32 ip6_table_index = ~0;
+ u32 other_table_index = ~0;
+ int rv;
+
+ while (unformat_check_input (input) != UNFORMAT_END_OF_INPUT)
+ {
+ if (unformat (input, "intfc %U", unformat_vnet_sw_interface,
+ vnm, &sw_if_index))
+ ;
+ else if (unformat (input, "ip4-table %d", &ip4_table_index))
+ ;
+ else if (unformat (input, "ip6-table %d", &ip6_table_index))
+ ;
+ else if (unformat (input, "other-table %d", &other_table_index))
+ ;
+ else
+ break;
+ }
+
+ if (sw_if_index == ~0)
+ return clib_error_return (0, "interface must be specified");
+
+
+ if (ip4_table_index == ~0 && ip6_table_index == ~0
+ && other_table_index == ~0)
+ {
+ vlib_cli_output (vm, "L2 classification disabled");
+ vnet_l2_output_classify_enable_disable (sw_if_index, 0 /* enable */ );
+ return 0;
+ }
+
+ rv = vnet_l2_output_classify_set_tables (sw_if_index, ip4_table_index,
+ ip6_table_index,
+ other_table_index);
+ switch (rv)
+ {
+ case 0:
+ vnet_l2_output_classify_enable_disable (sw_if_index, 1 /* enable */ );
+ break;
+
+ default:
+ return clib_error_return (0, "vnet_l2_output_classify_set_tables: %d",
+ rv);
+ break;
+ }
+
+ return 0;
+}
+
+/*?
+ * Configure l2 input classification.
+ *
+ * @cliexpar
+ * @cliexstart {set interface l2 output classify intfc <interface-name>
+ * [ip4-table <index>]
+ * [ip6-table <index>]
+ * [other-table <index>]}
+ * @cliexend
+ ?*/
+
+/* *INDENT-OFF* */
+VLIB_CLI_COMMAND (int_l2_output_classify_cli, static) = {
+ .path = "set interface l2 output classify",
+ .short_help =
+ "set interface l2 output classify intfc <int> [ip4-table <n>]\n"
+ " [ip6-table <n>] [other-table <n>]",
+ .function = int_l2_output_classify_command_fn,
+};
+/* *INDENT-ON* */
+
+/*
+ * fd.io coding-style-patch-verification: ON
+ *
+ * Local Variables:
+ * eval: (c-set-style "gnu")
+ * End:
+ */
u32 tmp;
#define _(n,N) \
- if (unformat (input, #n)) { next_index = L2_CLASSIFY_NEXT_##N; goto out;}
+ if (unformat (input, #n)) { next_index = L2_INPUT_CLASSIFY_NEXT_##N; goto out;}
foreach_l2_next;
#undef _
u32 ip4_table_index = ~0;
u32 ip6_table_index = ~0;
u32 other_table_index = ~0;
+ u32 is_input = 1;
while (unformat_check_input (i) != UNFORMAT_END_OF_INPUT)
{
;
else if (unformat (i, "other-table %d", &other_table_index))
;
+ else if (unformat (i, "is-input %d", &is_input))
+ ;
else
{
clib_warning ("parse error '%U'", format_unformat_error, i);
mp->ip4_table_index = ntohl (ip4_table_index);
mp->ip6_table_index = ntohl (ip6_table_index);
mp->other_table_index = ntohl (other_table_index);
-
+ mp->is_input = (u8) is_input;
S;
W;
vlib_main_t *vlib_main;
vnet_main_t *vnet_main;
vnet_classify_main_t *vnet_classify_main;
- l2_classify_main_t *l2_classify_main;
+ l2_input_classify_main_t *l2_input_classify_main;
}
sticky_hash_main_t;
fe0 =
vnet_classify_find_or_add_entry_3 (ft0, mp->fdata, &was_found0);
- fe0->next_index = L2_CLASSIFY_NEXT_IP4_INPUT;
+ fe0->next_index = L2_INPUT_CLASSIFY_NEXT_IP4_INPUT;
fe0->advance = sizeof (ethernet_header_t);
re0 = vnet_classify_find_or_add_entry_3 (rt0, mp->rdata, 0);
- re0->next_index = L2_CLASSIFY_NEXT_IP4_INPUT; /* $$$ FIXME */
+ re0->next_index = L2_INPUT_CLASSIFY_NEXT_IP4_INPUT; /* $$$ FIXME */
re0->advance = sizeof (ethernet_header_t);
/* Note: we could get a whole vector of misses for the same sess */
mp->vlib_main = vm;
mp->vnet_main = vnet_get_main ();
mp->vnet_classify_main = &vnet_classify_main;
- mp->l2_classify_main = &l2_classify_main;
+ mp->l2_input_classify_main = &l2_input_classify_main;
return 0;
}
u32 fib_index;
ip4_fib_t *fib;
vnet_classify_main_t *cm = mp->vnet_classify_main;
- l2_classify_main_t *l2cm = mp->l2_classify_main;
+ l2_input_classify_main_t *l2cm = mp->l2_input_classify_main;
vnet_classify_table_3_t *ft, *rt;
fib_index = vec_elt (im->fib_index_by_sw_if_index, fwd_sw_if_index);
fib->fwd_classify_table_index
= ft - (vnet_classify_table_3_t *) cm->tables;
mp->fwd_miss_next_index =
- vlib_node_add_next (mp->vlib_main, l2_classify_node.index,
+ vlib_node_add_next (mp->vlib_main, l2_input_classify_node.index,
sticky_hash_miss_node.index);
ft->miss_next_index = mp->fwd_miss_next_index;
}
vec_validate
- (l2cm->classify_table_index_by_sw_if_index[L2_CLASSIFY_TABLE_IP4],
+ (l2cm->classify_table_index_by_sw_if_index[L2_INPUT_CLASSIFY_TABLE_IP4],
fwd_sw_if_index);
vec_validate
- (l2cm->classify_table_index_by_sw_if_index[L2_CLASSIFY_TABLE_IP6],
+ (l2cm->classify_table_index_by_sw_if_index[L2_INPUT_CLASSIFY_TABLE_IP6],
fwd_sw_if_index);
vec_validate
- (l2cm->classify_table_index_by_sw_if_index[L2_CLASSIFY_TABLE_OTHER],
+ (l2cm->classify_table_index_by_sw_if_index[L2_INPUT_CLASSIFY_TABLE_OTHER],
fwd_sw_if_index);
- l2cm->classify_table_index_by_sw_if_index[L2_CLASSIFY_TABLE_IP4]
+ l2cm->classify_table_index_by_sw_if_index[L2_INPUT_CLASSIFY_TABLE_IP4]
[fwd_sw_if_index] = fib->fwd_classify_table_index;
- l2cm->classify_table_index_by_sw_if_index[L2_CLASSIFY_TABLE_IP6]
+ l2cm->classify_table_index_by_sw_if_index[L2_INPUT_CLASSIFY_TABLE_IP6]
[fwd_sw_if_index] = ~0;
- l2cm->classify_table_index_by_sw_if_index[L2_CLASSIFY_TABLE_OTHER]
+ l2cm->classify_table_index_by_sw_if_index[L2_INPUT_CLASSIFY_TABLE_OTHER]
[fwd_sw_if_index] = ~0;
vec_validate
- (l2cm->classify_table_index_by_sw_if_index[L2_CLASSIFY_TABLE_IP4],
+ (l2cm->classify_table_index_by_sw_if_index[L2_INPUT_CLASSIFY_TABLE_IP4],
rev_sw_if_index);
vec_validate
- (l2cm->classify_table_index_by_sw_if_index[L2_CLASSIFY_TABLE_IP6],
+ (l2cm->classify_table_index_by_sw_if_index[L2_INPUT_CLASSIFY_TABLE_IP6],
rev_sw_if_index);
vec_validate
- (l2cm->classify_table_index_by_sw_if_index[L2_CLASSIFY_TABLE_OTHER],
+ (l2cm->classify_table_index_by_sw_if_index[L2_INPUT_CLASSIFY_TABLE_OTHER],
rev_sw_if_index);
- l2cm->classify_table_index_by_sw_if_index[L2_CLASSIFY_TABLE_IP4]
+ l2cm->classify_table_index_by_sw_if_index[L2_INPUT_CLASSIFY_TABLE_IP4]
[rev_sw_if_index] = fib->rev_classify_table_index;
- l2cm->classify_table_index_by_sw_if_index[L2_CLASSIFY_TABLE_IP6]
+ l2cm->classify_table_index_by_sw_if_index[L2_INPUT_CLASSIFY_TABLE_IP6]
[rev_sw_if_index] = ~0;
- l2cm->classify_table_index_by_sw_if_index[L2_CLASSIFY_TABLE_OTHER]
+ l2cm->classify_table_index_by_sw_if_index[L2_INPUT_CLASSIFY_TABLE_OTHER]
[rev_sw_if_index] = ~0;
- vnet_l2_classify_enable_disable (fwd_sw_if_index, enable_disable);
- vnet_l2_classify_enable_disable (rev_sw_if_index, enable_disable);
+ vnet_l2_input_classify_enable_disable (fwd_sw_if_index, enable_disable);
+ vnet_l2_input_classify_enable_disable (rev_sw_if_index, enable_disable);
return 0;
}
VALIDATE_SW_IF_INDEX (mp);
- rv = vnet_l2_classify_set_tables (sw_if_index, ip4_table_index,
- ip6_table_index, other_table_index);
+ if (mp->is_input)
+ rv = vnet_l2_input_classify_set_tables (sw_if_index, ip4_table_index,
+ ip6_table_index,
+ other_table_index);
+ else
+ rv = vnet_l2_output_classify_set_tables (sw_if_index, ip4_table_index,
+ ip6_table_index,
+ other_table_index);
if (rv == 0)
{
else
enable = 0;
- vnet_l2_classify_enable_disable (sw_if_index, enable);
+ if (mp->is_input)
+ vnet_l2_input_classify_enable_disable (sw_if_index, enable);
+ else
+ vnet_l2_output_classify_enable_disable (sw_if_index, enable);
}
BAD_SW_IF_INDEX_LABEL;
s = format (s, "ip4-table %d ", ntohl (mp->ip4_table_index));
s = format (s, "ip6-table %d ", ntohl (mp->ip6_table_index));
s = format (s, "other-table %d ", ntohl (mp->other_table_index));
+ s = format (s, "is-input %d ", mp->is_input);
FINISH;
}
u32 ip4_table_index;
u32 ip6_table_index;
u32 other_table_index;
+ u8 is_input;
};
/** \brief Set/unset l2 classification tables for an interface response
Code Review / vpp.git / commitdiff