OrionLibC

diff --git a/include/sys/ipc.h b/include/sys/ipc.h
new file mode 100644
index 0000000..e81e077
--- /dev/null
+++ b/include/sys/ipc.h
@@ -0,0 +1,38 @@
+#ifndef _SYS_IPC_H
+#define _SYS_IPC_H
+
+#include <stdint.h>
+#include <sys/types.h>
+
+/* Processes */
+enum Process {
+        NO_PROCESS,
+        SYSTEM,
+
+        ANY = 0xFFFFFFFF
+};
+
+/* Message encodings */
+typedef union MessageContent MessageContent;
+union MessageContent {
+	/* Generics */
+	char raw[16];
+	void *ptr;
+	uint32_t num;
+} __attribute__((__transparent_union__));
+
+/* Structure for a message */
+typedef struct Message Message;
+struct Message {
+	pid_t from;
+	uint16_t type;
+	MessageContent msg;
+	Message *next;
+} __attribute__((packed));
+
+Message *nb_send_msg(pid_t to, uint16_t type, MessageContent *msg);
+Message *send_msg(pid_t to, uint16_t type, MessageContent *msg);
+pid_t nb_recv_msg(Message *buf, pid_t from);
+pid_t recv_msg(Message *buf, pid_t from);
+
+#endif