Added display filters to wiretap.

svn path=/trunk/; revision=198

1 files changed, 104 insertions, 0 deletions

diff --git a/wiretap/ct-compile.h b/wiretap/ct-compile.h
new file mode 100644
index 0000000000..72f50b6843
--- /dev/null
+++ b/wiretap/ct-compile.h
@@ -0,0 +1,104 @@
+/* ct-compile.h
+   ------------
+   Compile-time filter-compiler for Wiretap
+
+*/
+
+#ifndef __G_LIB_H__
+#include <glib.h>
+#endif
+
+/* field type IDs */
+#define FTYPE_BOOLEAN	1
+#define FTYPE_ETHER	2
+#define FTYPE_IPv4ADDR	3
+#define FTYPE_UINT8	4
+#define FTYPE_UINT16	5
+#define FTYPE_UINT32	6
+#define FTYPE_BYTE	7
+
+/* field lengths */
+#define FLEN_BOOLEAN	1
+#define FLEN_ETHER	6
+#define FLEN_IPv4ADDR	4
+#define FLEN_UINT8	1
+#define FLEN_UINT16	2
+#define FLEN_UINT32	4
+/*      FLEN_BYTE doesn't get a fixed length, of course */
+
+/* computation types */
+#define CTYPE_NONE	0
+#define CTYPE_ANDMASK	1
+#define CTYPE_BYTECMP	2
+#define CTYPE_EITHEROF	3
+
+/* Protocol-layer information */
+struct protocol_layer {
+	char	*name;
+	char	*description;
+	GSList	*parents;
+};
+
+/* Fields */
+struct field_info {
+	char	*name;
+	char	*short_name;
+	char	*description;
+	int	field_type;
+	int	computation_type;
+	int	offset;
+	int	value;
+	int	length;
+
+	GSList	*aliases;
+	GSList	*many_list;
+
+	struct protocol_layer *parent;
+};
+
+/* Add a field-info struct to the compiler's list of fields */
+void field_info_add(struct field_info *fi, char *protocol);
+
+/* Initialize values in a field_info struct. This can only be run once per
+ * structure, as it would cause a memory leak if used multiple times. */
+void field_info_init(struct field_info *fi);
+
+/* Zero-out the values in a field_info struct. This can be used more than once
+ * per structure, as it avoids a memory leak. But call field_info_init the
+ * first time, and field_info_zero for all other times */
+void field_info_zero(struct field_info *fi);
+
+/* add alias(es) to this field */
+void field_info_add_alias(char *field_name, GSList *aliases);
+
+/* add a protocol to the hash */
+void protocol_layer_add(char *name, char *description);
+
+/* Given a list of GStrings of field names, returns a list of pointers
+ * to field_info structs */
+GSList* field_info_list(GSList *field_names, char *protocol);
+
+/* used by field_info_list() */
+void field_info_list_func1(gpointer node, gpointer protocol);
+void field_info_list_func2(gpointer node, gpointer new_list);
+
+void compiler_init(void);
+void write_rt_lex(void);
+void write_rt_lex_tokens(FILE *out);
+void rt_lex_tokens(gpointer key, gpointer value, gpointer out);
+void rt_lex_tokens_aliases(gpointer node, gpointer out);
+char* rt_lex_token_upcase(char *text);
+
+void write_rt_yacc(void);
+void write_rt_bytecmp_table(FILE *out);
+void rt_bytecmp_table(gpointer key, gpointer value, gpointer out);
+void write_rt_eitherof_table(FILE *out);
+void rt_eitherof_table(gpointer key, gpointer value, gpointer out);
+void write_rt_yacc_tokens(FILE *out);
+void rt_yacc_tokens(gpointer key, gpointer value, gpointer out);
+void write_rt_bytecmp_lval(FILE *out);
+void rt_bytecmp_lval(gpointer key, gpointer value, gpointer out);
+
+int yylex(void);
+int yyparse(void);
+void yyerror(char *string);