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/*
* Wireshark - Network traffic analyzer
* By Gerald Combs <gerald@wireshark.org>
* Copyright 2001 Gerald Combs
*
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
#include "syntax-tree.h"
#include "sttype-op.h"
typedef struct {
guint32 magic;
stnode_op_t op;
stmatch_t how;
stnode_t *val1;
stnode_t *val2;
} oper_t;
#define OPER_MAGIC 0xab9009ba
static gpointer
oper_new(gpointer junk _U_)
{
oper_t *oper;
ws_assert(junk == NULL);
oper = g_new(oper_t, 1);
oper->magic = OPER_MAGIC;
oper->op = STNODE_OP_UNINITIALIZED;
oper->how = STNODE_MATCH_DEF;
oper->val1 = NULL;
oper->val2 = NULL;
return oper;
}
static gpointer
oper_dup(gconstpointer data)
{
const oper_t *org = data;
oper_t *oper;
oper = oper_new(NULL);
oper->op = org->op;
oper->how = org->how;
oper->val1 = stnode_dup(org->val1);
oper->val2 = stnode_dup(org->val2);
return oper;
}
static void
oper_free(gpointer value)
{
oper_t *oper = value;
ws_assert_magic(oper, OPER_MAGIC);
if (oper->val1)
stnode_free(oper->val1);
if (oper->val2)
stnode_free(oper->val2);
g_free(oper);
}
static char *
oper_todisplay(const oper_t *oper)
{
const char *s = "<notset>";
switch(oper->op) {
case STNODE_OP_NOT:
s = "!";
break;
case STNODE_OP_AND:
s = "&&";
break;
case STNODE_OP_OR:
s = "||";
break;
case STNODE_OP_ALL_EQ:
s = "===";
break;
case STNODE_OP_ANY_EQ:
s = "==";
break;
case STNODE_OP_ALL_NE:
s = "!=";
break;
case STNODE_OP_ANY_NE:
s = "~=";
break;
case STNODE_OP_GT:
s = ">";
break;
case STNODE_OP_GE:
s = ">=";
break;
case STNODE_OP_LT:
s = "<";
break;
case STNODE_OP_LE:
s = "<=";
break;
case STNODE_OP_BITWISE_AND:
s = "&";
break;
case STNODE_OP_ADD:
s = "+";
break;
case STNODE_OP_UNARY_MINUS:
case STNODE_OP_SUBTRACT:
s = "-";
break;
case STNODE_OP_MULTIPLY:
s = "*";
break;
case STNODE_OP_DIVIDE:
s = "/";
break;
case STNODE_OP_MODULO:
s = "%";
break;
case STNODE_OP_CONTAINS:
s = "contains";
break;
case STNODE_OP_MATCHES:
s = "matches";
break;
case STNODE_OP_IN:
s = "in";
break;
case STNODE_OP_NOT_IN:
s = "not in";
break;
case STNODE_OP_UNINITIALIZED:
s = "<uninitialized>";
break;
}
return g_strdup(s);
}
static char *
oper_todebug(const oper_t *oper)
{
const char *s = "<notset>";
switch(oper->op) {
case STNODE_OP_NOT:
s = "TEST_NOT";
break;
case STNODE_OP_AND:
s = "TEST_AND";
break;
case STNODE_OP_OR:
s = "TEST_OR";
break;
case STNODE_OP_ALL_EQ:
s = "TEST_ALL_EQ";
break;
case STNODE_OP_ANY_EQ:
s = "TEST_ANY_EQ";
break;
case STNODE_OP_ALL_NE:
s = "TEST_ALL_NE";
break;
case STNODE_OP_ANY_NE:
s = "TEST_ANY_NE";
break;
case STNODE_OP_GT:
s = "TEST_GT";
break;
case STNODE_OP_GE:
s = "TEST_GE";
break;
case STNODE_OP_LT:
s = "TEST_LT";
break;
case STNODE_OP_LE:
s = "TEST_LE";
break;
case STNODE_OP_BITWISE_AND:
s = "OP_BITWISE_AND";
break;
case STNODE_OP_UNARY_MINUS:
s = "OP_UNARY_MINUS";
break;
case STNODE_OP_ADD:
s = "OP_ADD";
break;
case STNODE_OP_SUBTRACT:
s = "OP_SUBTRACT";
break;
case STNODE_OP_MULTIPLY:
s = "OP_MULTIPLY";
break;
case STNODE_OP_DIVIDE:
s = "OP_DIVIDE";
break;
case STNODE_OP_MODULO:
s = "OP_MODULO";
break;
case STNODE_OP_CONTAINS:
s = "TEST_CONTAINS";
break;
case STNODE_OP_MATCHES:
s = "TEST_MATCHES";
break;
case STNODE_OP_IN:
s = "TEST_IN";
break;
case STNODE_OP_NOT_IN:
s = "TEST_NOT_IN";
break;
case STNODE_OP_UNINITIALIZED:
s = "<uninitialized>";
break;
}
if (oper->how == STNODE_MATCH_ALL)
return g_strdup_printf("ALL %s", s);
if (oper->how == STNODE_MATCH_ANY)
return g_strdup_printf("ANY %s", s);
return g_strdup(s);
}
static char *
oper_tostr(const void *value, gboolean pretty)
{
const oper_t *oper = value;
ws_assert_magic(oper, OPER_MAGIC);
if (pretty)
return oper_todisplay(oper);
return oper_todebug(oper);
}
static int
num_operands(stnode_op_t op)
{
switch(op) {
case STNODE_OP_UNINITIALIZED:
break;
case STNODE_OP_NOT:
case STNODE_OP_UNARY_MINUS:
return 1;
case STNODE_OP_AND:
case STNODE_OP_OR:
case STNODE_OP_ALL_EQ:
case STNODE_OP_ANY_EQ:
case STNODE_OP_ALL_NE:
case STNODE_OP_ANY_NE:
case STNODE_OP_GT:
case STNODE_OP_GE:
case STNODE_OP_LT:
case STNODE_OP_LE:
case STNODE_OP_BITWISE_AND:
case STNODE_OP_ADD:
case STNODE_OP_SUBTRACT:
case STNODE_OP_MULTIPLY:
case STNODE_OP_DIVIDE:
case STNODE_OP_MODULO:
case STNODE_OP_CONTAINS:
case STNODE_OP_MATCHES:
case STNODE_OP_IN:
case STNODE_OP_NOT_IN:
return 2;
}
ws_assert_not_reached();
return -1;
}
void
sttype_oper_set1(stnode_t *node, stnode_op_t op, stnode_t *val1)
{
oper_t *oper = stnode_data(node);
ws_assert_magic(oper, OPER_MAGIC);
ws_assert(num_operands(op) == 1);
oper->op = op;
oper->val1 = val1;
oper->val2 = NULL;
}
void
sttype_oper_set2(stnode_t *node, stnode_op_t op, stnode_t *val1, stnode_t *val2)
{
oper_t *oper = stnode_data(node);
ws_assert_magic(oper, OPER_MAGIC);
ws_assert(num_operands(op) == 2);
oper->op = op;
oper->val1 = val1;
oper->val2 = val2;
}
void
sttype_oper_set1_args(stnode_t *node, stnode_t *val1)
{
oper_t *oper;
oper = (oper_t*)stnode_data(node);
ws_assert_magic(oper, OPER_MAGIC);
ws_assert(num_operands(oper->op) == 1);
oper->val1 = val1;
oper->val2 = NULL;
}
void
sttype_oper_set2_args(stnode_t *node, stnode_t *val1, stnode_t *val2)
{
oper_t *oper;
oper = (oper_t*)stnode_data(node);
ws_assert_magic(oper, OPER_MAGIC);
ws_assert(num_operands(oper->op) == 2);
oper->val1 = val1;
oper->val2 = val2;
}
void
sttype_oper_set_op(stnode_t *node, stnode_op_t op)
{
oper_t *oper = stnode_data(node);
ws_assert_magic(oper, OPER_MAGIC);
ws_assert(oper->op == STNODE_OP_UNINITIALIZED);
oper->op = op;
}
stnode_op_t
sttype_oper_get_op(stnode_t *node)
{
ws_assert_magic(node, OPER_MAGIC);
return ((oper_t *)node)->op;
}
void
sttype_oper_get(stnode_t *node, stnode_op_t *p_op, stnode_t **p_val1, stnode_t **p_val2)
{
oper_t *oper = stnode_data(node);
ws_assert_magic(oper, OPER_MAGIC);
if (p_op)
*p_op = oper->op;
if (p_val1)
*p_val1 = oper->val1;
if (p_val2)
*p_val2 = oper->val2;
}
void
sttype_test_set_match(stnode_t *node, stmatch_t how)
{
oper_t *oper = stnode_data(node);
ws_assert_magic(oper, OPER_MAGIC);
oper->how = how;
}
stmatch_t
sttype_test_get_match(stnode_t *node)
{
oper_t *oper = stnode_data(node);
ws_assert_magic(oper, OPER_MAGIC);
return oper->how;
}
void
sttype_register_opers(void)
{
static sttype_t test_type = {
STTYPE_TEST,
"TEST",
oper_new,
oper_free,
oper_dup,
oper_tostr
};
static sttype_t arithmetic_type = {
STTYPE_ARITHMETIC,
"ARITHMETIC",
oper_new,
oper_free,
oper_dup,
oper_tostr
};
sttype_register(&test_type);
sttype_register(&arithmetic_type);
}
/*
* Editor modelines - https://www.wireshark.org/tools/modelines.html
*
* Local variables:
* c-basic-offset: 8
* tab-width: 8
* indent-tabs-mode: t
* End:
*
* vi: set shiftwidth=8 tabstop=8 noexpandtab:
* :indentSize=8:tabSize=8:noTabs=false:
*/
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