diff options
Diffstat (limited to 'dfilter.h')
| -rw-r--r-- | dfilter.h | 75 |
1 files changed, 1 insertions, 74 deletions
@@ -1,7 +1,7 @@ /* dfilter.h * Definitions for display filters * - * $Id: dfilter.h,v 1.5 1999/08/03 15:04:26 gram Exp $ + * $Id: dfilter.h,v 1.6 1999/08/12 21:16:32 guy Exp $ * * Ethereal - Network traffic analyzer * By Gerald Combs <gerald@zing.org> @@ -27,84 +27,11 @@ #define __DFILTER_H__ void dfilter_init(void); -void dfilter_cleanup(void); int dfilter_compile(char* dfilter_text, GNode** p_dfcode); gboolean dfilter_apply(GNode *dfcode, proto_tree *ptree, const guint8* pd); -/* Here we provide interfaces to make our scanner act and look like lex */ -int yylex(void); -void yyerror(char *s); -void dfilter_yyerror(char *fmt, ...); - -/* functions that dfilter-grammar.y needs during parsing*/ -gboolean check_relation_numeric(gint operand, GArray *a, GArray *b); -gboolean check_relation_ether(gint operand, GArray *a, GArray *b); -gboolean check_relation_bytes(gint operand, GArray *a, GArray *b); -gboolean check_relation_boolean(gint operand, GArray *a, GArray *b); - -gboolean fill_array_numeric_value(GNode *gnode, gpointer data); -gboolean fill_array_numeric_variable(GNode *gnode, gpointer data); -gboolean fill_array_ether_value(GNode *gnode, gpointer data); -gboolean fill_array_ether_variable(GNode *gnode, gpointer data); -gboolean fill_array_bytes_value(GNode *gnode, gpointer data); -gboolean fill_array_bytes_variable(GNode *gnode, gpointer data); -gboolean fill_array_boolean_value(GNode *gnode, gpointer data); -gboolean fill_array_boolean_variable(GNode *gnode, gpointer data); - #ifdef WIN32 #define boolean truth_value #endif -enum node_type { - relation, /* eq, ne, gt, ge, lt, le */ - logical, /* and, or, not, xor */ - variable, /* protocol or header field id */ - existence, /* existence of a variable (protocol or hf) */ - alternation, /* &, | */ - boolean, /* true, false */ - numeric, /* uint8, uint16, or uint32 value */ - abs_time, - string, - ether, - bytes, - ipv4, - ipxnet -}; - -typedef gboolean(*CheckRelationFunc) (gint operand, GArray *a, GArray *b); - -/* This struct is the parse tree node created by this grammary and used - * directly in the display filter routines to filter packets. - */ -typedef struct dfilter_node { - enum node_type ntype; /* from dfilter-grammar.h */ - int elem_size; /* computed at dfilter parse time rather than - when finding elements for each packet. Saves time - in get_values_from_ptree() */ - CheckRelationFunc check_relation_func; - GNodeTraverseFunc fill_array_func; - - /* copied from proto.h */ - union { - gint relation; /* if type == relation (eq, ne, gt, ge, lt, le) */ - gint logical; /* if type == logical (and, or, not, xor) */ - gint variable; /* if type == variable (protocol or header field abbrev) */ - gint alternation; /* if type == alternation (& or |) */ - - gboolean boolean; - guint32 numeric; - struct timeval abs_time; /* the whole struct, not a pointer */ - gchar *string; - guint8 ether[6]; - GByteArray *bytes; - } value; - - /* used for byte-ranges */ - gint offset; - guint length; -} dfilter_node; - -/* lookup an abbreviation in our token hash, returing the ID # */ -int dfilter_lookup_token(char *abbrev); - #endif /* ! __DFILTER_H__ */ |