X-Git-Url: https://gerrit.automotivelinux.org/gerrit/gitweb?a=blobdiff_plain;f=drm-lease-manager%2Flease-config.c;fp=drm-lease-manager%2Flease-config.c;h=abb7fc1b74a21dbc8523e0b3e37846882c066169;hb=e9e5cf1f67a45e4d409dc9e1caa6ce8151579c88;hp=0000000000000000000000000000000000000000;hpb=69acc5f3928f0578438cefdd69b39bc05bb0769b;p=src%2Fdrm-lease-manager.git

diff --git a/drm-lease-manager/lease-config.c b/drm-lease-manager/lease-config.c
new file mode 100644
index 0000000..abb7fc1
--- /dev/null
+++ b/drm-lease-manager/lease-config.c
@@ -0,0 +1,121 @@
+/* Copyright 2022 IGEL Co., Ltd.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "lease-config.h"
+#include "log.h"
+#include <errno.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <toml.h>
+
+#define CONFIG_ERROR(x, ...) ERROR_LOG("%s: " x, filename, ##__VA_ARGS__)
+
+static bool populate_connector_names(struct lease_config *config,
+				     toml_array_t *conns)
+{
+	int cnames = toml_array_nelem(conns);
+	config->connector_names = calloc(cnames, sizeof(char *));
+	if (!config->connector_names) {
+		DEBUG_LOG("Memory allocation failed: %s\n", strerror(errno));
+		return false;
+	}
+
+	config->cnames = cnames;
+
+	for (int i = 0; i < config->cnames; i++) {
+		toml_datum_t conn = toml_string_at(conns, i);
+		if (!conn.ok) {
+			return false;
+		}
+		config->connector_names[i] = conn.u.s;
+	}
+	return true;
+}
+
+int parse_config(char *filename, struct lease_config **parsed_config)
+{
+	struct lease_config *config = NULL;
+	int nconfigs, i, ret = 0;
+	char parse_error[160];
+
+	FILE *fp = fopen(filename, "r");
+	if (!fp)
+		return 0;
+
+	toml_table_t *t_config =
+	    toml_parse_file(fp, parse_error, sizeof parse_error);
+	if (!t_config) {
+		CONFIG_ERROR("configuration file parse error: %s\n",
+			     parse_error);
+		fclose(fp);
+		return 0;
+	}
+
+	toml_array_t *leases = toml_array_in(t_config, "lease");
+	if (!leases) {
+		CONFIG_ERROR(
+		    "Invalid config - cannot find any 'lease' configs");
+		goto err;
+	}
+	nconfigs = toml_array_nelem(leases);
+	config = calloc(nconfigs, sizeof *config);
+
+	if (!config) {
+		DEBUG_LOG("Memory allocation failed: %s\n", strerror(errno));
+		goto err;
+	}
+
+	for (i = 0; i < toml_array_nelem(leases); i++) {
+		toml_table_t *lease = toml_table_at(leases, i);
+
+		toml_datum_t name = toml_string_in(lease, "name");
+		if (!name.ok) {
+			CONFIG_ERROR("Invalid lease name in entry #%d\n", i);
+			goto err_free_config;
+		}
+
+		config[i].lease_name = name.u.s;
+
+		toml_array_t *conns = toml_array_in(lease, "connectors");
+		if (conns && !populate_connector_names(&config[i], conns)) {
+			CONFIG_ERROR("Non string connector name in lease: %s\n",
+				     config[i].lease_name);
+			goto err_free_config;
+		}
+	}
+
+	*parsed_config = config;
+	ret = nconfigs;
+err:
+	toml_free(t_config);
+	fclose(fp);
+	return ret;
+err_free_config:
+	release_config(i, config);
+	goto err;
+}
+
+void release_config(int num_leases, struct lease_config *config)
+{
+	for (int i = 0; i < num_leases; i++) {
+		struct lease_config *c = &config[i];
+		free(c->lease_name);
+		for (int j = 0; j < c->cnames; j++)
+			free(c->connector_names[j]);
+		free(c->connector_names);
+	}
+	free(config);
+}