--- /dev/null
+/*
+ * Copyright (c) 2018 JANET(UK)
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * 3. Neither the name of JANET(UK) nor the names of its contributors
+ * may be used to endorse or promote products derived from this software
+ * without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ */
+
+#include <talloc.h>
+#include <jansson.h>
+
+#include <tr_filter.h>
+
+/* helper for below */
+#define OBJECT_SET_OR_FAIL(jobj, key, val) \
+do { \
+ if (val) \
+ json_object_set_new((jobj),(key),(val)); \
+ else \
+ goto cleanup; \
+} while (0)
+
+#define ARRAY_APPEND_OR_FAIL(jary, val) \
+do { \
+ if (val) \
+ json_array_append_new((jary),(val)); \
+ else \
+ goto cleanup; \
+} while (0)
+
+
+typedef json_t *(ITEM_ENCODER_FUNC)(void *);
+
+static json_t *items_to_json_array(void *items[], ITEM_ENCODER_FUNC *item_encoder, size_t max_items)
+{
+ size_t ii;
+ json_t *jarray = json_array();
+ json_t *retval = NULL;
+
+ if (jarray == NULL)
+ goto cleanup;
+
+ for (ii=0; ii<max_items; ii++) {
+ if (items[ii] != NULL)
+ ARRAY_APPEND_OR_FAIL(jarray, item_encoder(items[ii]));
+ }
+ /* success */
+ retval = jarray;
+ json_incref(retval);
+
+cleanup:
+ if (jarray)
+ json_decref(jarray);
+
+ return retval;
+}
+
+static json_t *tr_fspec_to_json(TR_FSPEC *fspec)
+{
+ json_t *fspec_json = NULL;
+ json_t *retval = NULL;
+
+ fspec_json = json_object();
+ if (fspec_json == NULL)
+ goto cleanup;
+
+ OBJECT_SET_OR_FAIL(fspec_json, "field",
+ tr_name_to_json_string(fspec->field));
+ OBJECT_SET_OR_FAIL(fspec_json, "matches",
+ items_to_json_array((void **)fspec->match,
+ (ITEM_ENCODER_FUNC *) tr_name_to_json_string,
+ TR_MAX_FILTER_SPEC_MATCHES));
+
+ /* succeeded - set the return value and increment the reference count */
+ retval = fspec_json;
+ json_incref(retval);
+
+cleanup:
+ if (fspec_json)
+ json_decref(fspec_json);
+ return retval;
+}
+
+static json_t *tr_fline_to_json(TR_FLINE *fline)
+{
+ json_t *fline_json = NULL;
+ json_t *retval = NULL;
+
+ fline_json = json_object();
+ if (fline_json == NULL)
+ goto cleanup;
+
+ OBJECT_SET_OR_FAIL(fline_json, "action",
+ json_string( (fline->action == TR_FILTER_ACTION_ACCEPT) ? "accept" : "reject"));
+ OBJECT_SET_OR_FAIL(fline_json, "specs",
+ items_to_json_array((void **)fline->specs,
+ (ITEM_ENCODER_FUNC *) tr_fspec_to_json,
+ TR_MAX_FILTER_SPECS));
+ if (fline->realm_cons) {
+ OBJECT_SET_OR_FAIL(fline_json, "realm_constraints",
+ items_to_json_array((void **) fline->realm_cons->matches,
+ (ITEM_ENCODER_FUNC *) tr_name_to_json_string,
+ TR_MAX_CONST_MATCHES));
+ }
+ if (fline->domain_cons) {
+ OBJECT_SET_OR_FAIL(fline_json, "domain_constraints",
+ items_to_json_array((void **) fline->domain_cons->matches,
+ (ITEM_ENCODER_FUNC *) tr_name_to_json_string,
+ TR_MAX_CONST_MATCHES));
+ }
+
+ /* succeeded - set the return value and increment the reference count */
+ retval = fline_json;
+ json_incref(retval);
+
+cleanup:
+ if (fline_json)
+ json_decref(fline_json);
+ return retval;
+}
+
+json_t *tr_filter_set_to_json(TR_FILTER_SET *filter_set)
+{
+ json_t *fset_json = NULL;
+ json_t *retval = NULL;
+ TR_FILTER *filt = NULL;
+ TR_FILTER_TYPE *filt_type = NULL;
+ TR_FILTER_TYPE types[] = {
+ TR_FILTER_TYPE_TID_INBOUND,
+ TR_FILTER_TYPE_TRP_INBOUND,
+ TR_FILTER_TYPE_TRP_OUTBOUND,
+ TR_FILTER_TYPE_UNKNOWN /* list terminator */
+ };
+
+ fset_json = json_object();
+ if (fset_json == NULL)
+ goto cleanup;
+
+ for (filt_type = types; *filt_type != TR_FILTER_TYPE_UNKNOWN; filt_type++) {
+ filt = tr_filter_set_get(filter_set, *filt_type);
+ if (filt) {
+ OBJECT_SET_OR_FAIL(fset_json, tr_filter_type_to_string(*filt_type),
+ items_to_json_array((void **)filt->lines,
+ (ITEM_ENCODER_FUNC *) tr_fline_to_json,
+ TR_MAX_FILTER_LINES));
+ }
+ }
+
+ /* succeeded - set the return value and increment the reference count */
+ retval = fset_json;
+ json_incref(retval);
+
+cleanup:
+ if (fset_json)
+ json_decref(fset_json);
+ return retval;
+}
+
projects / trust_router.git / commitdiff