diff --git a/src/config.cpp b/src/config.cpp
new file mode 100644
index 0000000..d7f2ee1
--- /dev/null
+++ b/src/config.cpp
@@ -0,0 +1,106 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright (C) 2020 YADRO
+
+#include "config.hpp"
+
+#include <algorithm>
+#include <climits>
+#include <cstring>
+#include <stdexcept>
+#include <string>
+
+/**
+ * @brief Set boolean value from environment variable.
+ *
+ * @param[in] name name of environment variable
+ * @param[out] value value to set
+ *
+ * @throw std::invalid_argument in case of errors
+ */
+static void safeSet(const char* name, bool& value)
+{
+    const char* envVal = std::getenv(name);
+    if (envVal)
+    {
+        if (strcmp(envVal, "true") == 0)
+        {
+            value = true;
+        }
+        else if (strcmp(envVal, "false") == 0)
+        {
+            value = false;
+        }
+        else
+        {
+            std::string err = "Invalid value of environment variable ";
+            err += name;
+            err += ": '";
+            err += envVal;
+            err += "', expected 'true' or 'false'";
+            throw std::invalid_argument(err);
+        }
+    }
+}
+
+/**
+ * @brief Set unsigned numeric value from environment variable.
+ *
+ * @param[in] name name of environment variable
+ * @param[out] value value to set
+ *
+ * @throw std::invalid_argument in case of errors
+ */
+static void safeSet(const char* name, size_t& value)
+{
+    const char* envVal = std::getenv(name);
+    if (envVal)
+    {
+        const size_t num = strtoul(envVal, nullptr, 0);
+        if (std::all_of(envVal, envVal + strlen(envVal), isdigit) &&
+            num != ULONG_MAX)
+        {
+            value = num;
+        }
+        else
+        {
+            std::string err = "Invalid argument: ";
+            err += envVal;
+            err += ", expected unsigned numeric value";
+            throw std::invalid_argument(err);
+        }
+    }
+}
+
+/**
+ * @brief Set string value from environment variable.
+ *
+ * @param[in] name name of environment variable
+ * @param[out] value value to set
+ */
+static void safeSet(const char* name, const char*& value)
+{
+    const char* envVal = std::getenv(name);
+    if (envVal)
+    {
+        value = envVal;
+    }
+}
+
+Config::Config()
+{
+    safeSet("SOCKET_ID", socketId);
+    safeSet("BUF_MAXSIZE", bufMaxSize);
+    safeSet("BUF_MAXTIME", bufMaxTime);
+    safeSet("FLUSH_FULL", bufFlushFull);
+    safeSet("HOST_STATE", hostState);
+    safeSet("OUT_DIR", outDir);
+    safeSet("MAX_FILES", maxFiles);
+
+    // Validate parameters
+    if (bufFlushFull && !bufMaxSize && !bufMaxTime)
+    {
+        throw std::invalid_argument(
+            "Flush policy is set to save the buffer as it fills, but buffer's "
+            "limits are not defined");
+    }
+}