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|
%{
#include <stdlib.h>
#include <stdio.h>
#include "ct-compile.h"
#include "config.h"
#ifdef HAVE_GLIB10
#include "glib-new.h"
#endif
struct field_info working_field;
gchar *current_protocol = NULL;
char *full_field_name = NULL;
%}
%union {
gint d;
GString *s;
GSList *a;
}
%type <s> sentence protocol
%type <a> parents text_list
%token <s> TEXT PROTOCOL PARENTS QUOTED
%token <d> NUMBER BOOLEAN ETHER UINT8 UINT16 UINT32 BYTE
%token FIELD ALIAS
%token AND_MASK BYTE_OFFSET EITHER_OF
%%
paragraph: /* EMPTY */
| paragraph sentence
;
sentence: protocol
{
if (current_protocol)
free(current_protocol);
current_protocol = g_strdup($1->str);
}
| parents
{
g_print("sentence Got parents %d\n", g_slist_length($1));
}
| alias { }
| field { }
;
protocol: PROTOCOL TEXT QUOTED ';'
{
protocol_layer_add($2->str, $3->str);
$$ = $2;
}
;
parents: PARENTS text_list ';'
{
$$ = $2;
g_slist_free($2);
}
;
alias: ALIAS TEXT text_list ';'
{
full_field_name = g_strjoin(".", current_protocol, $2->str, NULL);
field_info_add_alias(full_field_name, $3);
g_free(full_field_name);
}
field: FIELD TEXT QUOTED ',' field_type ',' field_location ';'
{
working_field.name = g_strjoin(".", current_protocol, $2->str, NULL);
working_field.short_name = g_strdup($2->str);
working_field.description = g_strdup($3->str);
field_info_add(&working_field, current_protocol);
field_info_zero(&working_field);
}
field_type: BOOLEAN
{
working_field.field_type = FTYPE_BOOLEAN;
working_field.length = FLEN_BOOLEAN;
}
| ETHER
{
working_field.field_type = FTYPE_ETHER;
working_field.length = FLEN_ETHER;
}
| UINT8
{
working_field.field_type = FTYPE_UINT8;
working_field.length = FLEN_UINT8;
}
| UINT16
{
working_field.field_type = FTYPE_UINT16;
working_field.length = FLEN_UINT16;
}
| UINT32
{
working_field.field_type = FTYPE_UINT32;
working_field.length = FLEN_UINT32;
}
| BYTE '[' NUMBER ']'
{
working_field.field_type = FTYPE_BYTE;
working_field.length = $3;
}
;
field_location: AND_MASK '(' NUMBER '@' NUMBER ')'
{
working_field.computation_type = CTYPE_ANDMASK;
working_field.value = $3;
working_field.offset = $5;
}
| BYTE_OFFSET '(' NUMBER ')'
{
working_field.computation_type = CTYPE_BYTECMP;
working_field.offset = $3;
}
| EITHER_OF '(' text_list ')'
{
working_field.computation_type = CTYPE_EITHEROF;
working_field.many_list = field_info_list($3, current_protocol);
g_slist_free($3);
}
;
text_list: TEXT
{
$$ = g_slist_alloc();
g_slist_append($$, $1);
}
| text_list ',' TEXT
{
$$ = $1;
g_slist_append($$, $3);
}
;
|
