acl-plugin: implement an optional session reclassification when ACL is (re-)applied
[vpp.git] / src / plugins / acl / fa_node.h
index a8dece4..263cf14 100644 (file)
@@ -2,7 +2,9 @@
 #define _FA_NODE_H_
 
 #include <stddef.h>
-#include "bihash_40_8.h"
+#include <vppinfra/bihash_40_8.h>
+
+// #define FA_NODE_VERBOSE_DEBUG 3
 
 #define TCP_FLAG_FIN    0x01
 #define TCP_FLAG_SYN    0x02
 typedef union {
   u64 as_u64;
   struct {
-    u32 sw_if_index;
+    u32 lc_index;
     u16 mask_type_index_lsb;
     u8 tcp_flags;
     u8 tcp_flags_valid:1;
-    u8 is_input:1;
     u8 l4_valid:1;
     u8 is_nonfirst_fragment:1;
     u8 is_ip6:1;
-    u8 flags_reserved:3;
+    u8 flags_reserved:4;
   };
 } fa_packet_info_t;
 
@@ -53,6 +54,10 @@ typedef union {
   clib_bihash_kv_40_8_t kv;
 } fa_5tuple_t;
 
+typedef struct {
+  u8 opaque[sizeof(fa_5tuple_t)];
+} fa_5tuple_opaque_t;
+
 
 typedef struct {
   fa_5tuple_t info; /* (5+1)*8 = 48 bytes */
@@ -71,6 +76,10 @@ typedef struct {
   u64 reserved2[5];       /* +5*8 bytes = 64 */
 } fa_session_t;
 
+#define FA_POLICY_EPOCH_MASK 0x7fff
+/* input policy epochs have the MSB set */
+#define FA_POLICY_EPOCH_IS_INPUT 0x8000
+
 
 /* This structure is used to fill in the u64 value
    in the per-sw-if-index hash table */
@@ -80,7 +89,7 @@ typedef struct {
     struct {
       u32 session_index;
       u16 thread_index;
-      u16 reserved0;
+      u16 intf_policy_epoch;
     };
   };
 } fa_full_session_id_t;
@@ -112,6 +121,8 @@ typedef struct {
   /* adds and deletes per-worker-per-interface */
   u64 *fa_session_dels_by_sw_if_index;
   u64 *fa_session_adds_by_sw_if_index;
+  /* sessions deleted due to epoch change */
+  u64 *fa_session_epoch_change_by_sw_if_index;
   /* Vector of expired connections retrieved from lists */
   u32 *expired;
   /* the earliest next expiry time */
@@ -147,6 +158,10 @@ typedef struct {
    * because there is not enough work for the current rate.
    */
   int interrupt_is_unwanted;
+  /*
+   * Set to copy of a "generation" counter in main thread so we can sync the interrupts.
+   */
+  int interrupt_generation;
 } acl_fa_per_worker_data_t;
 
 
@@ -166,5 +181,123 @@ void acl_fa_enable_disable(u32 sw_if_index, int is_input, int enable_disable);
 
 void show_fa_sessions_hash(vlib_main_t * vm, u32 verbose);
 
+u8 *format_acl_plugin_5tuple (u8 * s, va_list * args);
+
+/* use like: elog_acl_maybe_trace_X1(am, "foobar: %d", "i4", int32_value); */
+
+#define elog_acl_maybe_trace_X1(am, acl_elog_trace_format_label, acl_elog_trace_format_args, acl_elog_val1)              \
+do {                                                                                                                     \
+  if (am->trace_sessions) {                                                                                              \
+    CLIB_UNUSED(struct { u8 available_space[18 - sizeof(acl_elog_val1)]; } *static_check);                               \
+    u16 thread_index = os_get_thread_index ();                                                                           \
+    vlib_worker_thread_t * w = vlib_worker_threads + thread_index;                                                       \
+    ELOG_TYPE_DECLARE (e) =                                                                                              \
+      {                                                                                                                  \
+        .format = "(%02d) " acl_elog_trace_format_label,                                                                 \
+        .format_args = "i2" acl_elog_trace_format_args,                                                                  \
+      };                                                                                                                 \
+    CLIB_PACKED(struct                                                                                                   \
+      {                                                                                                                  \
+        u16 thread;                                                                                                      \
+        typeof(acl_elog_val1) val1;                                                                                      \
+      }) *ed;                                                                                                            \
+    ed = ELOG_TRACK_DATA (&vlib_global_main.elog_main, e, w->elog_track);                                                \
+    ed->thread = thread_index;                                                                                           \
+    ed->val1 = acl_elog_val1;                                                                                            \
+  }                                                                                                                      \
+} while (0)
+
+
+/* use like: elog_acl_maybe_trace_X2(am, "foobar: %d some u64: %lu", "i4i8", int32_value, int64_value); */
+
+#define elog_acl_maybe_trace_X2(am, acl_elog_trace_format_label, acl_elog_trace_format_args,                             \
+                                                                                           acl_elog_val1, acl_elog_val2) \
+do {                                                                                                                     \
+  if (am->trace_sessions) {                                                                                              \
+    CLIB_UNUSED(struct { u8 available_space[18 - sizeof(acl_elog_val1) - sizeof(acl_elog_val2)]; } *static_check);       \
+    u16 thread_index = os_get_thread_index ();                                                                           \
+    vlib_worker_thread_t * w = vlib_worker_threads + thread_index;                                                       \
+    ELOG_TYPE_DECLARE (e) =                                                                                              \
+      {                                                                                                                  \
+        .format = "(%02d) " acl_elog_trace_format_label,                                                                 \
+        .format_args = "i2" acl_elog_trace_format_args,                                                                  \
+      };                                                                                                                 \
+    CLIB_PACKED(struct                                                                                                   \
+      {                                                                                                                  \
+        u16 thread;                                                                                                      \
+        typeof(acl_elog_val1) val1;                                                                                      \
+        typeof(acl_elog_val2) val2;                                                                                      \
+      }) *ed;                                                                                                            \
+    ed = ELOG_TRACK_DATA (&vlib_global_main.elog_main, e, w->elog_track);                                                \
+    ed->thread = thread_index;                                                                                           \
+    ed->val1 = acl_elog_val1;                                                                                            \
+    ed->val2 = acl_elog_val2;                                                                                            \
+  }                                                                                                                      \
+} while (0)
+
+
+/* use like: elog_acl_maybe_trace_X3(am, "foobar: %d some u64 %lu baz: %d", "i4i8i4", int32_value, u64_value, int_value); */
+
+#define elog_acl_maybe_trace_X3(am, acl_elog_trace_format_label, acl_elog_trace_format_args, acl_elog_val1,              \
+                                                                                           acl_elog_val2, acl_elog_val3) \
+do {                                                                                                                     \
+  if (am->trace_sessions) {                                                                                              \
+    CLIB_UNUSED(struct { u8 available_space[18 - sizeof(acl_elog_val1) - sizeof(acl_elog_val2)                           \
+                                               - sizeof(acl_elog_val3)]; } *static_check);                               \
+    u16 thread_index = os_get_thread_index ();                                                                           \
+    vlib_worker_thread_t * w = vlib_worker_threads + thread_index;                                                       \
+    ELOG_TYPE_DECLARE (e) =                                                                                              \
+      {                                                                                                                  \
+        .format = "(%02d) " acl_elog_trace_format_label,                                                                 \
+        .format_args = "i2" acl_elog_trace_format_args,                                                                  \
+      };                                                                                                                 \
+    CLIB_PACKED(struct                                                                                                   \
+      {                                                                                                                  \
+        u16 thread;                                                                                                      \
+        typeof(acl_elog_val1) val1;                                                                                      \
+        typeof(acl_elog_val2) val2;                                                                                      \
+        typeof(acl_elog_val3) val3;                                                                                      \
+      }) *ed;                                                                                                            \
+    ed = ELOG_TRACK_DATA (&vlib_global_main.elog_main, e, w->elog_track);                                                \
+    ed->thread = thread_index;                                                                                           \
+    ed->val1 = acl_elog_val1;                                                                                            \
+    ed->val2 = acl_elog_val2;                                                                                            \
+    ed->val3 = acl_elog_val3;                                                                                            \
+  }                                                                                                                      \
+} while (0)
+
+
+/* use like: elog_acl_maybe_trace_X4(am, "foobar: %d some int %d baz: %d bar: %d", "i4i4i4i4", int32_value, int32_value2, int_value, int_value); */
+
+#define elog_acl_maybe_trace_X4(am, acl_elog_trace_format_label, acl_elog_trace_format_args, acl_elog_val1,              \
+                                                                            acl_elog_val2, acl_elog_val3, acl_elog_val4) \
+do {                                                                                                                     \
+  if (am->trace_sessions) {                                                                                              \
+    CLIB_UNUSED(struct { u8 available_space[18 - sizeof(acl_elog_val1) - sizeof(acl_elog_val2)                           \
+                                               - sizeof(acl_elog_val3) -sizeof(acl_elog_val4)]; } *static_check);        \
+    u16 thread_index = os_get_thread_index ();                                                                           \
+    vlib_worker_thread_t * w = vlib_worker_threads + thread_index;                                                       \
+    ELOG_TYPE_DECLARE (e) =                                                                                              \
+      {                                                                                                                  \
+        .format = "(%02d) " acl_elog_trace_format_label,                                                                 \
+        .format_args = "i2" acl_elog_trace_format_args,                                                                  \
+      };                                                                                                                 \
+    CLIB_PACKED(struct                                                                                                   \
+      {                                                                                                                  \
+        u16 thread;                                                                                                      \
+        typeof(acl_elog_val1) val1;                                                                                      \
+        typeof(acl_elog_val2) val2;                                                                                      \
+        typeof(acl_elog_val3) val3;                                                                                      \
+        typeof(acl_elog_val4) val4;                                                                                      \
+      }) *ed;                                                                                                            \
+    ed = ELOG_TRACK_DATA (&vlib_global_main.elog_main, e, w->elog_track);                                                \
+    ed->thread = thread_index;                                                                                           \
+    ed->val1 = acl_elog_val1;                                                                                            \
+    ed->val2 = acl_elog_val2;                                                                                            \
+    ed->val3 = acl_elog_val3;                                                                                            \
+    ed->val4 = acl_elog_val4;                                                                                            \
+  }                                                                                                                      \
+} while (0)
+
 
 #endif