init

2026-06-26 00:30:13 +02:00
commit b27cd76ca8
122 changed files with 37290 additions and 0 deletions
@@ -0,0 +1,46 @@
+#ifndef MESHCORE_FRAME_HEADER
+#define MESHCORE_FRAME_HEADER
+
+#include "stddef.h"
+#include "stdint.h"
+#include "lib/cifra/aes.h"
+#include "lib/cifra/hmac.h"
+#include "packetstructs.h"
+
+
+#define KEY_SIZE 16  // 128-bit AES
+#define HMAC_SIZE 2  // meshcore size
+#define MAX_FLOOD_TTL 64
+//#define NON_RETX_HISTORY 64
+#define NON_RETX_HISTORY 8
+
+int ReadFrame (FrameStruct *frame, int8_t *rssiPacket, int8_t *snrPacket, int8_t *rawSnr);
+
+void LoRaTransmit (const FrameStruct *frame);
+
+/*
+FrameStruct decodeFrame (unsigned char *data, unsigned char dataLen);
+
+void sendFrame (const FrameStruct * frame);
+*/
+
+void printFrameHeader (const FrameStruct *frame);
+
+// CALL LAST, PATH GETS MODIFIED
+void retransmitFrame (FrameStruct *frame);
+
+// Verify MAC + Decrypt
+
+int encrypt_then_mac (const uint8_t *aes_key, const uint8_t keySize, const uint8_t *plaintext, size_t plen, uint8_t *output, size_t *olen);
+
+int mac_then_decrypt (const uint8_t *aes_key, const uint8_t keySize, const uint8_t *input, size_t ilen, uint8_t *plaintext);
+
+void addToNotReTX(const FrameStruct *frame);
+
+typedef struct KnownPacketHistoryType {
+    uint8_t hash[32];
+    uint8_t populated;
+} KnownPacketHistoryType;
+
+
+#endif