1 files changed, 73 insertions, 0 deletions
diff --git a/filter/f-inst.h b/filter/f-inst.h
new file mode 100644
index 00000000..33fcf4a9
--- /dev/null
+++ b/filter/f-inst.h
@@ -0,0 +1,73 @@
+/*
+ *	BIRD Internet Routing Daemon -- Filter instructions
+ *
+ *	(c) 1999 Pavel Machek <pavel@ucw.cz>
+ *	(c) 2018--2019 Maria Matejka <mq@jmq.cz>
+ *
+ *	Can be freely distributed and used under the terms of the GNU GPL.
+ *
+ *	Filter interpreter data structures and internal API.
+ *	See filter/f-inst.c for documentation.
+ */
+
+#ifndef _BIRD_F_INST_H_
+#define _BIRD_F_INST_H_
+
+#include "nest/bird.h"
+#include "conf/conf.h"
+#include "filter/filter.h"
+#include "filter/data.h"
+
+/* Flags for instructions */
+enum f_instruction_flags {
+  FIF_PRINTED = 1,		/* FI_PRINT_AND_DIE: message put in buffer */
+} PACKED;
+
+/* Include generated filter instruction declarations */
+#include "filter/inst-gen.h"
+
+#define f_new_inst(...) MACRO_CONCAT_AFTER(f_new_inst_, MACRO_FIRST(__VA_ARGS__))(__VA_ARGS__)
+
+/* Convert the instruction back to the enum name */
+const char *f_instruction_name(enum f_instruction_code fi);
+
+/* Filter structures for execution */
+/* Line of instructions to be unconditionally executed one after another */
+struct f_line {
+  uint len;				/* Line length */
+  u8 args;				/* Function: Args required */
+  u8 vars;
+  struct f_line_item items[0];		/* The items themselves */
+};
+
+/* Convert the f_inst infix tree to the f_line structures */
+struct f_line *f_linearize_concat(const struct f_inst * const inst[], uint count);
+static inline struct f_line *f_linearize(const struct f_inst *root)
+{ return f_linearize_concat(&root, 1); }
+
+void f_dump_line(const struct f_line *, uint indent);
+
+struct filter *f_new_where(struct f_inst *);
+static inline struct f_dynamic_attr f_new_dynamic_attr(u8 type, enum f_type f_type, uint code) /* Type as core knows it, type as filters know it, and code of dynamic attribute */
+{ return (struct f_dynamic_attr) { .type = type, .f_type = f_type, .ea_code = code }; }   /* f_type currently unused; will be handy for static type checking */
+static inline struct f_dynamic_attr f_new_dynamic_attr_bit(u8 bit, enum f_type f_type, uint code) /* Type as core knows it, type as filters know it, and code of dynamic attribute */
+{ return (struct f_dynamic_attr) { .type = EAF_TYPE_BITFIELD, .bit = bit, .f_type = f_type, .ea_code = code }; }   /* f_type currently unused; will be handy for static type checking */
+static inline struct f_static_attr f_new_static_attr(int f_type, int code, int readonly)
+{ return (struct f_static_attr) { .f_type = f_type, .sa_code = code, .readonly = readonly }; }
+struct f_inst *f_generate_complex(enum f_instruction_code fi_code, struct f_dynamic_attr da, struct f_inst *argument);
+struct f_inst *f_generate_roa_check(struct rtable_config *table, struct f_inst *prefix, struct f_inst *asn);
+
+/* Hook for call bt_assert() function in configuration */
+extern void (*bt_assert_hook)(int result, const struct f_line_item *assert);
+
+/* Bird Tests */
+struct f_bt_test_suite {
+  node n;			/* Node in config->tests */
+  const struct f_line *fn;	/* Root of function */
+  const struct f_line *cmp;	/* Compare to this function */
+  const char *fn_name;		/* Name of test */
+  const char *dsc;		/* Description */
+  int result;			/* Desired result */
+};
+
+#endif