diff --git a/chassishandler.hpp b/chassishandler.hpp
new file mode 100644
index 0000000..6535c0e
--- /dev/null
+++ b/chassishandler.hpp
@@ -0,0 +1,59 @@
+#pragma once
+
+#include <stdint.h>
+
+#include <cstddef>
+
+// IPMI commands for Chassis net functions.
+enum ipmi_netfn_chassis_cmds
+{
+    IPMI_CMD_GET_CHASSIS_CAP = 0x00,
+    // Chassis Status
+    IPMI_CMD_CHASSIS_STATUS = 0x01,
+    // Chassis Control
+    IPMI_CMD_CHASSIS_CONTROL = 0x02,
+    IPMI_CMD_CHASSIS_IDENTIFY = 0x04,
+    // Set Power Restore Policy
+    IPMI_CMD_SET_RESTORE_POLICY = 0x06,
+    // Get capability bits
+    IPMI_CMD_SET_SYS_BOOT_OPTIONS = 0x08,
+    IPMI_CMD_GET_SYS_BOOT_OPTIONS = 0x09,
+    IPMI_CMD_GET_POH_COUNTER = 0x0F,
+};
+
+// Command specific completion codes
+enum ipmi_chassis_return_codes
+{
+    IPMI_OK = 0x0,
+    IPMI_CC_PARM_NOT_SUPPORTED = 0x80,
+};
+
+// Generic completion codes,
+// see IPMI doc section 5.2
+enum ipmi_generic_return_codes
+{
+    IPMI_OUT_OF_SPACE = 0xC4,
+};
+
+// Various Chassis operations under a single command.
+enum ipmi_chassis_control_cmds : uint8_t
+{
+    CMD_POWER_OFF = 0x00,
+    CMD_POWER_ON = 0x01,
+    CMD_POWER_CYCLE = 0x02,
+    CMD_HARD_RESET = 0x03,
+    CMD_PULSE_DIAGNOSTIC_INTR = 0x04,
+    CMD_SOFT_OFF_VIA_OVER_TEMP = 0x05,
+};
+enum class BootOptionParameter : size_t
+{
+    BOOT_INFO = 0x4,
+    BOOT_FLAGS = 0x5,
+    OPAL_NETWORK_SETTINGS = 0x61
+};
+
+enum class BootOptionResponseSize : size_t
+{
+    BOOT_FLAGS = 5,
+    OPAL_NETWORK_SETTINGS = 50
+};