acl: remove custom ACL-plugin heap

[vpp.git] / src / plugins / acl / lookup_context.c

diff --git a/src/plugins/acl/lookup_context.c b/src/plugins/acl/lookup_context.c
index 4af9847..5344975 100644 (file)
--- a/src/plugins/acl/lookup_context.c
+++ b/src/plugins/acl/lookup_context.c
@@ -15,13 +15,23 @@
 
 #include <plugins/acl/acl.h>
 #include <plugins/acl/fa_node.h>
-#include <plugins/acl/public_inlines.h>
 #include <vlib/unix/plugin.h>
+#include <plugins/acl/public_inlines.h>
 #include "hash_lookup.h"
 #include "elog_acl_trace.h"
 
 /* check if a given ACL exists */
-u8 acl_plugin_acl_exists (u32 acl_index);
+static u8
+acl_plugin_acl_exists (u32 acl_index)
+{
+  acl_main_t *am = &acl_main;
+
+  if (pool_is_free_index (am->acls, acl_index))
+    return 0;
+
+  return 1;
+}
+
 
 static u32 get_acl_user_id(acl_main_t *am, char *user_module_name, char *val1_label, char *val2_label)
 {
@@ -64,12 +74,16 @@ static int acl_lc_index_valid(acl_main_t *am, u32 lc_index)
  * so you can identify yourself when creating the lookup contexts.
  */
 
-u32 acl_plugin_register_user_module (char *user_module_name, char *val1_label, char *val2_label)
+static u32 acl_plugin_register_user_module (char *user_module_name, char *val1_label, char *val2_label)
 {
   acl_main_t *am = &acl_main;
-  void *oldheap = acl_plugin_set_heap();
+  /*
+   * Because folks like to call this early on,
+   * use the global heap, so as to avoid
+   * initializing the main ACL heap before
+   * they start using ACLs.
+   */
   u32 user_id = get_acl_user_id(am, user_module_name, val1_label, val2_label);
-  clib_mem_set_heap (oldheap);
   return user_id;
 }
 
@@ -81,7 +95,7 @@ u32 acl_plugin_register_user_module (char *user_module_name, char *val1_label, c
  * If >= 0 - context id. If < 0 - error code.
  */
 
-int acl_plugin_get_lookup_context_index (u32 acl_user_id, u32 val1, u32 val2)
+static int acl_plugin_get_lookup_context_index (u32 acl_user_id, u32 val1, u32 val2)
 {
   acl_main_t *am = &acl_main;
   acl_lookup_context_t *acontext;
@@ -89,8 +103,11 @@ int acl_plugin_get_lookup_context_index (u32 acl_user_id, u32 val1, u32 val2)
   if (!acl_user_id_valid(am, acl_user_id))
     return VNET_API_ERROR_INVALID_REGISTRATION;
 
-  void *oldheap = acl_plugin_set_heap ();
-
+  /*
+   * The lookup context index allocation is
+   * an operation done within the global heap,
+   * so no heap switching necessary.
+   */
 
   pool_get(am->acl_lookup_contexts, acontext);
   acontext->acl_indices = 0;
@@ -101,7 +118,6 @@ int acl_plugin_get_lookup_context_index (u32 acl_user_id, u32 val1, u32 val2)
   u32 new_context_id = acontext - am->acl_lookup_contexts;
   vec_add1(am->acl_users[acl_user_id].lookup_contexts, new_context_id);
 
-  clib_mem_set_heap (oldheap);
   return new_context_id;
 }
 
@@ -169,9 +185,9 @@ unapply_acl_vec(u32 lc_index, u32 *acls)
 
 /*
  * Release the lookup context index and destroy
- * any asssociated data structures.
+ * any associated data structures.
  */
-void acl_plugin_put_lookup_context_index (u32 lc_index)
+static void acl_plugin_put_lookup_context_index (u32 lc_index)
 {
   acl_main_t *am = &acl_main;
 
@@ -181,7 +197,6 @@ void acl_plugin_put_lookup_context_index (u32 lc_index)
     return;
   }
 
-  void *oldheap = acl_plugin_set_heap ();
   acl_lookup_context_t *acontext = pool_elt_at_index(am->acl_lookup_contexts, lc_index);
 
   u32 index = vec_search(am->acl_users[acontext->context_user_id].lookup_contexts, lc_index);
@@ -192,14 +207,13 @@ void acl_plugin_put_lookup_context_index (u32 lc_index)
   unlock_acl_vec(lc_index, acontext->acl_indices);
   vec_free(acontext->acl_indices);
   pool_put(am->acl_lookup_contexts, acontext);
-  clib_mem_set_heap (oldheap);
 }
 
 /*
  * Prepare the sequential vector of ACL#s to lookup within a given context.
  * Any existing list will be overwritten. acl_list is a vector.
  */
-int acl_plugin_set_acl_vec_for_context (u32 lc_index, u32 *acl_list)
+static int acl_plugin_set_acl_vec_for_context (u32 lc_index, u32 *acl_list)
 {
   int rv = 0;
   uword *seen_acl_bitmap = 0;
@@ -217,8 +231,6 @@ int acl_plugin_set_acl_vec_for_context (u32 lc_index, u32 *acl_list)
     clib_warning("BUG: lc_index %d is not valid", lc_index);
     return -1;
   }
-  void *oldheap = acl_plugin_set_heap ();
-
   vec_foreach (pacln, acl_list)
   {
     if (pool_is_free_index (am->acls, *pacln))
@@ -251,7 +263,6 @@ int acl_plugin_set_acl_vec_for_context (u32 lc_index, u32 *acl_list)
 
 done:
   clib_bitmap_free (seen_acl_bitmap);
-  clib_mem_set_heap (oldheap);
   return rv;
 }
 
@@ -274,13 +285,13 @@ void acl_plugin_lookup_context_notify_acl_change(u32 acl_num)
 
 /* Fill the 5-tuple from the packet */
 
-void acl_plugin_fill_5tuple (u32 lc_index, vlib_buffer_t * b0, int is_ip6, int is_input,
+static void acl_plugin_fill_5tuple (u32 lc_index, vlib_buffer_t * b0, int is_ip6, int is_input,
                                 int is_l2_path, fa_5tuple_opaque_t * p5tuple_pkt)
 {
-  acl_plugin_fill_5tuple_inline(lc_index, b0, is_ip6, is_input, is_l2_path, p5tuple_pkt);
+  acl_plugin_fill_5tuple_inline(&acl_main, lc_index, b0, is_ip6, is_input, is_l2_path, p5tuple_pkt);
 }
 
-int acl_plugin_match_5tuple (u32 lc_index,
+static int acl_plugin_match_5tuple (u32 lc_index,
                                            fa_5tuple_opaque_t * pkt_5tuple,
                                            int is_ip6, u8 * r_action,
                                            u32 * r_acl_pos_p,
@@ -288,7 +299,7 @@ int acl_plugin_match_5tuple (u32 lc_index,
                                            u32 * r_rule_match_p,
                                            u32 * trace_bitmap)
 {
-  return acl_plugin_match_5tuple_inline (lc_index, pkt_5tuple, is_ip6, r_action, r_acl_pos_p, r_acl_match_p, r_rule_match_p, trace_bitmap);
+  return acl_plugin_match_5tuple_inline (&acl_main, lc_index, pkt_5tuple, is_ip6, r_action, r_acl_pos_p, r_acl_match_p, r_rule_match_p, trace_bitmap);
 }
 
 
@@ -341,3 +352,18 @@ acl_plugin_show_lookup_context (u32 lc_index)
     }
   }));
 }
+
+void *
+acl_plugin_get_p_acl_main(void)
+{
+  return &acl_main;
+}
+
+clib_error_t *acl_plugin_methods_vtable_init(acl_plugin_methods_t *m)
+{
+  m->p_acl_main = &acl_main;
+#define _(name) m->name = acl_plugin_ ## name;
+  foreach_acl_plugin_exported_method_name
+#undef _
+  return 0;
+}