1 files changed, 75 insertions, 0 deletions
diff --git a/src/messages/messages.h b/src/messages/messages.h
new file mode 100644
index 0000000..dfc0df3
--- /dev/null
+++ b/src/messages/messages.h
@@ -0,0 +1,75 @@
+#ifndef FSCORD_MESSAGES_H
+#define FSCORD_MESSAGES_H
+
+// Todo: Currently every user is identified via his name. Can we change it to an id?
+
+#include <basic/basic.h>
+#include <basic/string32.h>
+#include <os/os.h>
+#include <crypto/aes_gcm.h>
+
+
+#define MESSAGES_MAX_USER_COUNT 128
+#define MESSAGES_MAX_USERNAME_LEN 32
+#define MESSAGES_MAX_PASSWORD_LEN 32
+#define MESSAGES_MAX_MESSAGE_LEN 1024
+#define MESSAGES_MAX_PACKAGE_SIZE 1408
+
+typedef struct {
+    u32 size;
+    u32 type;
+} MessageHeader;
+
+enum {
+    C2S_LOGIN,
+    C2S_CHAT_MESSAGE,
+};
+
+enum {
+    S2C_LOGIN,
+    S2C_USER_UPDATE,
+    S2C_CHAT_MESSAGE,
+};
+
+enum {
+    S2C_LOGIN_ERROR,
+    S2C_LOGIN_SUCCESS
+};
+
+enum {
+    S2C_USER_UPDATE_OFFLINE,
+    S2C_USER_UPDATE_ONLINE,
+};
+
+typedef struct {
+    MessageHeader header;
+    String32 *username;
+    String32 *password;
+} C2S_Login;
+
+typedef struct {
+    MessageHeader header;
+    String32 *content;
+} C2S_ChatMessage;
+
+typedef struct {
+    MessageHeader header;
+    u32 login_result;
+} S2C_Login;
+
+typedef struct {
+    MessageHeader header;
+    u32 status;
+    String32 *username;
+} S2C_UserUpdate;
+
+typedef struct {
+    MessageHeader header;
+    i64 epoch_time_seconds;
+    i64 epoch_time_nanoseconds;
+    String32 *username;
+    String32 *content;
+} S2C_ChatMessage;
+
+
+#endif // FSCORD_MESSAGES_H