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-rw-r--r--src/plugins/acl/acl.api12
-rw-r--r--src/plugins/acl/acl.c66
-rw-r--r--src/plugins/acl/acl.h23
-rw-r--r--src/plugins/acl/dataplane_node.c50
-rw-r--r--src/plugins/acl/public_inlines.h41
5 files changed, 183 insertions, 9 deletions
diff --git a/src/plugins/acl/acl.api b/src/plugins/acl/acl.api
index cde46c444dd..0c230c5fd54 100644
--- a/src/plugins/acl/acl.api
+++ b/src/plugins/acl/acl.api
@@ -547,3 +547,15 @@ define acl_interface_etype_whitelist_details
u16 whitelist[count];
};
+/** \brief Enable or disable incrementing ACL counters in stats segment by interface processing
+ @param client_index - opaque cookie to identify the sender
+ @param context - sender context, to match reply w/ request
+ @param enable - whether to enable or disable incrementing the counters
+*/
+
+autoreply define acl_stats_intf_counters_enable
+{
+ u32 client_index;
+ u32 context;
+ bool enable;
+};
diff --git a/src/plugins/acl/acl.c b/src/plugins/acl/acl.c
index 9ebb349d1b1..24dd53bd749 100644
--- a/src/plugins/acl/acl.c
+++ b/src/plugins/acl/acl.c
@@ -86,7 +86,8 @@ _(MACIP_ACL_INTERFACE_GET, macip_acl_interface_get) \
_(MACIP_ACL_INTERFACE_LIST_DUMP, macip_acl_interface_list_dump) \
_(ACL_INTERFACE_SET_ETYPE_WHITELIST, acl_interface_set_etype_whitelist) \
_(ACL_INTERFACE_ETYPE_WHITELIST_DUMP, acl_interface_etype_whitelist_dump) \
-_(ACL_PLUGIN_GET_CONN_TABLE_MAX_ENTRIES,acl_plugin_get_conn_table_max_entries)
+_(ACL_PLUGIN_GET_CONN_TABLE_MAX_ENTRIES,acl_plugin_get_conn_table_max_entries) \
+_(ACL_STATS_INTF_COUNTERS_ENABLE, acl_stats_intf_counters_enable)
/* *INDENT-OFF* */
@@ -373,6 +374,33 @@ policy_notify_acl_change (acl_main_t * am, u32 acl_num)
}
+static void
+validate_and_reset_acl_counters (acl_main_t * am, u32 acl_index)
+{
+ int i;
+ /* counters are set as vectors [acl#] pointing to vectors of [acl rule] */
+ acl_plugin_counter_lock (am);
+
+ int old_len = vec_len (am->combined_acl_counters);
+
+ vec_validate (am->combined_acl_counters, acl_index);
+
+ for (i = old_len; i < vec_len (am->combined_acl_counters); i++)
+ {
+ am->combined_acl_counters[i].name = 0;
+ /* filled in once only */
+ am->combined_acl_counters[i].stat_segment_name = (void *)
+ format (0, "/acl/%d/matches%c", i, 0);
+ clib_warning ("add stats segment: %s",
+ am->combined_acl_counters[i].stat_segment_name);
+ i32 rule_count = vec_len (am->acls[acl_index].rules);
+ /* Validate one extra so we always have at least one counter for an ACL */
+ vlib_validate_combined_counter (&am->combined_acl_counters[i],
+ rule_count);
+ vlib_zero_combined_counter (&am->combined_acl_counters[i], rule_count);
+ }
+ acl_plugin_counter_unlock (am);
+}
static int
acl_add_list (u32 count, vl_api_acl_rule_t rules[],
@@ -465,6 +493,11 @@ acl_add_list (u32 count, vl_api_acl_rule_t rules[],
policy_notify_acl_change (am, *acl_list_index);
}
+ /* stats segment expects global heap, so restore it temporarily */
+ clib_mem_set_heap (oldheap);
+ validate_and_reset_acl_counters (am, *acl_list_index);
+ oldheap = acl_set_heap (am);
+
/* notify the lookup contexts about the ACL changes */
acl_plugin_lookup_context_notify_acl_change (*acl_list_index);
clib_mem_set_heap (oldheap);
@@ -662,6 +695,16 @@ acl_interface_out_enable_disable (acl_main_t * am, u32 sw_if_index,
}
static int
+acl_stats_intf_counters_enable_disable (acl_main_t * am, int enable_disable)
+{
+ int rv = 0;
+
+ am->interface_acl_counters_enabled = enable_disable;
+
+ return rv;
+}
+
+static int
acl_interface_inout_enable_disable (acl_main_t * am, u32 sw_if_index,
int is_input, int enable_disable)
{
@@ -1893,6 +1936,21 @@ vl_api_acl_del_t_handler (vl_api_acl_del_t * mp)
REPLY_MACRO (VL_API_ACL_DEL_REPLY);
}
+
+static void
+ vl_api_acl_stats_intf_counters_enable_t_handler
+ (vl_api_acl_stats_intf_counters_enable_t * mp)
+{
+ acl_main_t *am = &acl_main;
+ vl_api_acl_stats_intf_counters_enable_reply_t *rmp;
+ int rv;
+
+ rv = acl_stats_intf_counters_enable_disable (am, ntohl (mp->enable));
+
+ REPLY_MACRO (VL_API_ACL_DEL_REPLY);
+}
+
+
static void
vl_api_acl_interface_add_del_t_handler (vl_api_acl_interface_add_del_t * mp)
{
@@ -3390,6 +3448,8 @@ acl_show_aclplugin_tables_fn (vlib_main_t * vm,
show_applied_info = 1;
show_bihash = 1;
}
+ vlib_cli_output (vm, "Stats counters enabled for interface ACLs: %d",
+ acl_main.interface_acl_counters_enabled);
if (show_mask_type)
acl_plugin_show_tables_mask_type ();
if (show_acl_hash_info)
@@ -3659,6 +3719,10 @@ acl_init (vlib_main_t * vm)
acl_plugin.register_user_module ("interface ACL", "sw_if_index",
"is_input");
+ am->acl_counter_lock = clib_mem_alloc_aligned (CLIB_CACHE_LINE_BYTES,
+ CLIB_CACHE_LINE_BYTES);
+ am->acl_counter_lock[0] = 0; /* should be no need */
+
return error;
}
diff --git a/src/plugins/acl/acl.h b/src/plugins/acl/acl.h
index 53650916423..229ee057725 100644
--- a/src/plugins/acl/acl.h
+++ b/src/plugins/acl/acl.h
@@ -27,6 +27,7 @@
#include <vppinfra/bihash_48_8.h>
#include <vppinfra/bihash_40_8.h>
#include <vppinfra/bihash_16_8.h>
+#include <vlib/counter.h>
#include "types.h"
#include "fa_node.h"
@@ -34,7 +35,7 @@
#include "lookup_context.h"
#define ACL_PLUGIN_VERSION_MAJOR 1
-#define ACL_PLUGIN_VERSION_MINOR 3
+#define ACL_PLUGIN_VERSION_MINOR 4
#define UDP_SESSION_IDLE_TIMEOUT_SEC 600
#define TCP_SESSION_IDLE_TIMEOUT_SEC (3600*24)
@@ -314,6 +315,11 @@ typedef struct {
vnet_main_t * vnet_main;
/* logging */
vlib_log_class_t log_default;
+ /* acl counters exposed via stats segment */
+ volatile u32 *acl_counter_lock;
+ vlib_combined_counter_main_t *combined_acl_counters;
+ /* enable/disable ACL counters for interface processing */
+ u32 interface_acl_counters_enabled;
} acl_main_t;
#define acl_log_err(...) \
@@ -326,6 +332,21 @@ typedef struct {
vlib_log(VLIB_LOG_LEVEL_INFO, acl_main.log_default, __VA_ARGS__)
+static inline void
+acl_plugin_counter_lock (acl_main_t * am)
+{
+ if (am->acl_counter_lock)
+ while (clib_atomic_test_and_set (am->acl_counter_lock))
+ /* zzzz */ ;
+}
+
+static inline void
+acl_plugin_counter_unlock (acl_main_t * am)
+{
+ if (am->acl_counter_lock)
+ clib_atomic_release (am->acl_counter_lock);
+}
+
#define foreach_acl_eh \
_(HOPBYHOP , 0 , "IPv6ExtHdrHopByHop") \
diff --git a/src/plugins/acl/dataplane_node.c b/src/plugins/acl/dataplane_node.c
index 0bdcc850054..c738f664571 100644
--- a/src/plugins/acl/dataplane_node.c
+++ b/src/plugins/acl/dataplane_node.c
@@ -565,6 +565,11 @@ acl_fa_inner_node_fn (vlib_main_t * vm,
u32 *sw_if_index;
fa_5tuple_t *fa_5tuple;
u64 *hash;
+ /* for the delayed counters */
+ u32 saved_matched_acl_index = 0;
+ u32 saved_matched_ace_index = 0;
+ u32 saved_packet_count = 0;
+ u32 saved_byte_count = 0;
from = vlib_frame_vector_args (frame);
error_node = vlib_node_get_runtime (vm, node->node_index);
@@ -690,13 +695,34 @@ acl_fa_inner_node_fn (vlib_main_t * vm,
am->output_lc_index_by_sw_if_index[sw_if_index[0]];
action = 0; /* deny by default */
- acl_plugin_match_5tuple_inline (am, lc_index0,
- (fa_5tuple_opaque_t *) &
- fa_5tuple[0], is_ip6, &action,
- &match_acl_pos,
- &match_acl_in_index,
- &match_rule_index,
- &trace_bitmap);
+ int is_match = acl_plugin_match_5tuple_inline (am, lc_index0,
+ (fa_5tuple_opaque_t *) & fa_5tuple[0], is_ip6,
+ &action,
+ &match_acl_pos,
+ &match_acl_in_index,
+ &match_rule_index,
+ &trace_bitmap);
+ if (PREDICT_FALSE
+ (is_match && am->interface_acl_counters_enabled))
+ {
+ u32 buf_len = vlib_buffer_length_in_chain (vm, b[0]);
+ vlib_increment_combined_counter (am->combined_acl_counters +
+ saved_matched_acl_index,
+ thread_index,
+ saved_matched_ace_index,
+ saved_packet_count,
+ saved_byte_count);
+ saved_matched_acl_index = match_acl_in_index;
+ saved_matched_ace_index = match_rule_index;
+ saved_packet_count = 1;
+ saved_byte_count = buf_len;
+ /* prefetch the counter that we are going to increment */
+ vlib_prefetch_combined_counter (am->combined_acl_counters +
+ saved_matched_acl_index,
+ thread_index,
+ saved_matched_ace_index);
+ }
+
b[0]->error = error_node->errors[action];
if (1 == action)
@@ -778,6 +804,16 @@ acl_fa_inner_node_fn (vlib_main_t * vm,
vlib_buffer_enqueue_to_next (vm, node, from, pw->nexts, frame->n_vectors);
+ /*
+ * if we were had an acl match then we have a counter to increment.
+ * else it is all zeroes, so this will be harmless.
+ */
+ vlib_increment_combined_counter (am->combined_acl_counters +
+ saved_matched_acl_index,
+ thread_index,
+ saved_matched_ace_index,
+ saved_packet_count, saved_byte_count);
+
vlib_node_increment_counter (vm, node->node_index,
ACL_FA_ERROR_ACL_CHECK, frame->n_vectors);
vlib_node_increment_counter (vm, node->node_index,
diff --git a/src/plugins/acl/public_inlines.h b/src/plugins/acl/public_inlines.h
index 03b64012a74..6b69bcef61e 100644
--- a/src/plugins/acl/public_inlines.h
+++ b/src/plugins/acl/public_inlines.h
@@ -682,5 +682,46 @@ acl_plugin_match_5tuple_inline (void *p_acl_main, u32 lc_index,
}
+always_inline int
+acl_plugin_match_5tuple_inline_and_count (void *p_acl_main, u32 lc_index,
+ fa_5tuple_opaque_t * pkt_5tuple,
+ int is_ip6, u8 * r_action,
+ u32 * r_acl_pos_p,
+ u32 * r_acl_match_p,
+ u32 * r_rule_match_p,
+ u32 * trace_bitmap,
+ u32 packet_size)
+{
+ acl_main_t *am = p_acl_main;
+ int ret = 0;
+ fa_5tuple_t * pkt_5tuple_internal = (fa_5tuple_t *)pkt_5tuple;
+ pkt_5tuple_internal->pkt.lc_index = lc_index;
+ if (PREDICT_TRUE(am->use_hash_acl_matching)) {
+ if (PREDICT_FALSE(pkt_5tuple_internal->pkt.is_nonfirst_fragment)) {
+ /*
+ * tuplemerge does not take fragments into account,
+ * and in general making fragments first class citizens has
+ * proved more overhead than it's worth - so just fall back to linear
+ * matching in that case.
+ */
+ ret = linear_multi_acl_match_5tuple(p_acl_main, lc_index, pkt_5tuple_internal, is_ip6, r_action,
+ r_acl_pos_p, r_acl_match_p, r_rule_match_p, trace_bitmap);
+ } else {
+ ret = hash_multi_acl_match_5tuple(p_acl_main, lc_index, pkt_5tuple_internal, is_ip6, r_action,
+ r_acl_pos_p, r_acl_match_p, r_rule_match_p, trace_bitmap);
+ }
+ } else {
+ ret = linear_multi_acl_match_5tuple(p_acl_main, lc_index, pkt_5tuple_internal, is_ip6, r_action,
+ r_acl_pos_p, r_acl_match_p, r_rule_match_p, trace_bitmap);
+ }
+ if (PREDICT_TRUE(ret)) {
+ u16 thread_index = os_get_thread_index ();
+ vlib_increment_combined_counter(am->combined_acl_counters + *r_acl_match_p, thread_index, *r_rule_match_p, 1, packet_size);
+ }
+ return ret;
+}
+
+
+
#endif