From 63a381dbf5e37c2740982d07988cea983c699816 Mon Sep 17 00:00:00 2001
From: Martin Mares <mj@ucw.cz>
Date: Mon, 5 Apr 1999 20:10:31 +0000
Subject: Several filter changes. (Pavel, please check if they are OK.)

   o  Changed parameters of f_run. Changed rtein+rteout pair to rte pointer
      passed by reference, added ea_list of temporary attrs again passed
      by reference and finally added a pointer to memory pool for storing
      temporary data (new ea_lists's, temporary rta's etc.).
   o  Re-ordered result codes, so that all accepts come before all rejects.
   o  Introduced FILTER_ACCEPT and FILTER_REJECT dummy values (will be
      used in protocol configurations).
   o  Added filter_name() which returns name of a filter or ACCEPT/REJECT
      for the dummies.
---
 filter/f-util.c | 13 ++++++++++++-
 filter/filter.h | 12 ++++++++----
 2 files changed, 20 insertions(+), 5 deletions(-)

(limited to 'filter')

diff --git a/filter/f-util.c b/filter/f-util.c
index 12902df6..6605091e 100644
--- a/filter/f-util.c
+++ b/filter/f-util.c
@@ -146,7 +146,7 @@ f_new_inst(void)
 }
 
 int
-f_run(struct filter *filter, struct rte *rtein, struct rte **rteout)
+f_run(struct filter *filter, struct rte **rte, struct ea_list **tmp_attrs, struct linpool *tmp_pool)
 {
   struct f_inst *inst;
   struct f_val res;
@@ -160,6 +160,17 @@ f_run(struct filter *filter, struct rte *rtein, struct rte **rteout)
   return res.val.i;
 }
 
+char *
+filter_name(struct filter *filter)
+{
+  if (!filter)
+    return "ACCEPT";
+  else if (filter == FILTER_REJECT)
+    return "REJECT";
+  else
+    return filter->name;
+}
+
 void
 filters_postconfig(void)
 {
diff --git a/filter/filter.h b/filter/filter.h
index ba8dc853..d8ee7efa 100644
--- a/filter/filter.h
+++ b/filter/filter.h
@@ -32,14 +32,18 @@ struct filter {
 void filters_postconfig(void);
 struct f_inst *f_new_inst(void);
 
-int f_run(struct filter *filter, struct rte *rtein, struct rte **rteout);
+int f_run(struct filter *filter, struct rte **rte, struct ea_list **tmp_attrs, struct linpool *tmp_pool);
+char *filter_name(struct filter *filter);
 
-#define F_ACCEPT 1
-#define F_REJECT 2
-#define F_MODIFY 3
+#define F_ACCEPT 1	/* Need to preserve ordering: accepts < rejects! */
+#define F_MODIFY 2	/* FIXME: Introduce modification flags instead? */
+#define F_REJECT 3
 #define F_ERROR 4
 #define F_QUITBIRD 5
 
+#define FILTER_ACCEPT NULL
+#define FILTER_REJECT ((void *) 1)
+
 /* Type numbers must be in 0..0xff range */
 #define T_MASK 0xff
 
-- 
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