/**
* Create an instance of the @c ee_match_any operator.
*
* Looks up the automata name and adds the automata to the operator instance.
*
* @param[in] ctx Current context.
* @param[in] parameters Automata name.
* @param[out] instance_data Instance data.
* @param[in] cbdata Callback data.
*/
static
ib_status_t ee_match_any_operator_create(
ib_context_t *ctx,
const char *parameters,
void *instance_data,
void *cbdata
)
{
assert(ctx != NULL);
assert(parameters != NULL);
assert(instance_data != NULL);
ib_status_t rc;
ia_eudoxus_t* eudoxus;
ee_operator_data_t *operator_data;
ib_module_t *module;
ib_engine_t *ib = ib_context_get_engine(ctx);
ib_mpool_t *pool = ib_context_get_mpool(ctx);
const ee_config_t *config = ee_get_config(ib);
const ib_hash_t *eudoxus_pattern_hash;
assert(config != NULL);
assert(config->eudoxus_pattern_hash != NULL);
/* Get my module object */
rc = ib_engine_module_get(ib, MODULE_NAME_STR, &module);
if (rc != IB_OK) {
ib_log_error(ib, "Failed to get eudoxus operator module object: %s",
ib_status_to_string(rc));
return rc;
}
/* Allocate a rule data object, populate it */
operator_data = ib_mpool_alloc(pool, sizeof(*operator_data));
if (operator_data == NULL) {
return IB_EALLOC;
}
eudoxus_pattern_hash = config->eudoxus_pattern_hash;
rc = ib_hash_get(eudoxus_pattern_hash, &eudoxus, parameters);
if (rc == IB_ENOENT ) {
ib_log_error(ib,
MODULE_NAME_STR ": No eudoxus automata named %s found.",
parameters);
return rc;
}
else if (rc != IB_OK) {
ib_log_error(ib,
MODULE_NAME_STR ": Error setting up eudoxus automata operator.");
return rc;
}
operator_data->eudoxus = eudoxus;
*(ee_operator_data_t **)instance_data = operator_data;
ib_log_debug(ib, "Found compiled eudoxus pattern \"%s\"", parameters);
return IB_OK;
}
ib_status_t test_create_fn(
ib_context_t *ctx,
const char *parameters,
void **instance_data,
void *cbdata
)
{
assert(ctx != NULL);
char *str;
ib_mpool_t *pool = ib_context_get_mpool(ctx);
if (strcmp(parameters, "INVALID") == 0) {
return IB_EINVAL;
}
str = ib_mpool_strdup(pool, parameters);
if (str == NULL) {
return IB_EALLOC;
}
*instance_data = str;
return IB_OK;
}
/**
* Create the PCRE operator.
*
* @param[in] ctx Current context.
* @param[in] parameters Unparsed string with the parameters to
* initialize the operator instance.
* @param[out] instance_data Instance data.
* @param[in] cbdata Callback data.
*
* @returns IB_OK on success or IB_EALLOC on any other type of error.
*/
static
ib_status_t dfa_operator_create(
ib_context_t *ctx,
const char *parameters,
void *instance_data,
void *cbdata
)
{
assert(ctx != NULL);
assert(parameters != NULL);
assert(instance_data != NULL);
ib_engine_t *ib = ib_context_get_engine(ctx);
ib_mpool_t *pool = ib_context_get_mpool(ctx);
assert(ib != NULL);
assert(pool != NULL);
modpcre_cpat_data_t *cpdata;
modpcre_operator_data_t *operator_data;
ib_module_t *module;
modpcre_cfg_t *config;
ib_status_t rc;
const char *errptr;
int erroffset;
/* Get my module object */
rc = ib_engine_module_get(ib, MODULE_NAME_STR, &module);
if (rc != IB_OK) {
ib_log_error(ib, "Failed to get pcre module object: %s",
ib_status_to_string(rc));
return rc;
}
/* Get the context configuration */
rc = ib_context_module_config(ctx, module, &config);
if (rc != IB_OK) {
ib_log_error(ib, "Failed to get pcre module configuration: %s",
ib_status_to_string(rc));
return rc;
}
rc = pcre_compile_internal(ib,
pool,
config,
true,
&cpdata,
parameters,
&errptr,
&erroffset);
if (rc != IB_OK) {
ib_log_error(ib, "Failed to parse DFA operator pattern \"%s\":%s",
parameters, ib_status_to_string(rc));
return rc;
}
/* Allocate a rule data object, populate it */
operator_data = ib_mpool_alloc(pool, sizeof(*operator_data));
if (operator_data == NULL) {
return IB_EALLOC;
}
operator_data->cpdata = cpdata;
rc = dfa_id_set(pool, operator_data);
if (rc != IB_OK) {
ib_log_error(ib, "Error creating ID for DFA: %s",
ib_status_to_string(rc));
return rc;
}
ib_log_debug(ib, "Compiled DFA id=\"%s\" operator pattern \"%s\" @ %p",
operator_data->id, parameters, (void *)cpdata->cpatt);
*(modpcre_operator_data_t **)instance_data = operator_data;
return IB_OK;
}
/**
* Create the PCRE operator.
*
* @param[in] ctx Current context.
* @param[in] parameters Unparsed string with the parameters to
* initialize the operator instance.
* @param[out] instance_data Instance data.
* @param[in] cbdata Callback data.
*
* @returns IB_OK on success or IB_EALLOC on any other type of error.
*/
static
ib_status_t pcre_operator_create(
ib_context_t *ctx,
const char *parameters,
void *instance_data,
void *cbdata
)
{
assert(ctx != NULL);
assert(parameters != NULL);
assert(instance_data != NULL);
ib_engine_t *ib = ib_context_get_engine(ctx);
ib_mpool_t *pool = ib_context_get_mpool(ctx);
assert(ib != NULL);
assert(pool != NULL);
modpcre_cpat_data_t *cpdata = NULL;
modpcre_operator_data_t *operator_data = NULL;
ib_module_t *module;
modpcre_cfg_t *config;
ib_status_t rc;
const char *errptr;
int erroffset;
if (parameters == NULL) {
ib_log_error(ib, "No pattern for operator");
return IB_EINVAL;
}
/* Get my module object */
rc = ib_engine_module_get(ib, MODULE_NAME_STR, &module);
if (rc != IB_OK) {
ib_log_error(ib, "Failed to get pcre module object: %s",
ib_status_to_string(rc));
return rc;
}
/* Get the context configuration */
rc = ib_context_module_config(ctx, module, &config);
if (rc != IB_OK) {
ib_log_error(ib, "Failed to get pcre module configuration: %s",
ib_status_to_string(rc));
return rc;
}
/* Compile the pattern. Note that the rule data is an alias for
* the compiled pattern type */
rc = pcre_compile_internal(ib,
pool,
config,
false,
&cpdata,
parameters,
&errptr,
&erroffset);
if (rc != IB_OK) {
return rc;
}
/* Allocate a rule data object, populate it */
operator_data = ib_mpool_alloc(pool, sizeof(*operator_data));
if (operator_data == NULL) {
return IB_EALLOC;
}
operator_data->cpdata = cpdata;
operator_data->id = NULL; /* Not needed for rx rules */
/* Rule data is an alias for the compiled pattern data */
*(modpcre_operator_data_t **)instance_data = operator_data;
return rc;
}
