1 files changed, 111 insertions, 0 deletions
diff --git a/decoders/quic/quic_deprotection.h b/decoders/quic/quic_deprotection.h
new file mode 100644
index 0000000..525e398
--- /dev/null
+++ b/decoders/quic/quic_deprotection.h
@@ -0,0 +1,111 @@
+#pragma once
+#ifdef __cpluscplus
+extern "C"
+{
+#endif
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <signal.h>
+#include <sys/stat.h>
+#include <arpa/inet.h>
+
+#ifdef DEBUG_SWITCH
+
+#define LOG_DEBUG(format, ...)                       \
+    {                                                \
+        fprintf(stdout, format "\n", ##__VA_ARGS__); \
+        fflush(stdout);                              \
+    }
+
+#define LOG_WARN(format, ...)                        \
+    {                                                \
+        fprintf(stderr, format "\n", ##__VA_ARGS__); \
+        fflush(stderr);                              \
+    }
+
+#define LOG_ERROR(format, ...)                       \
+    {                                                \
+        fprintf(stderr, format "\n", ##__VA_ARGS__); \
+        fflush(stderr);                              \
+    }
+
+#else
+
+#define LOG_DEBUG(format, ...)
+#define LOG_WARN(format, ...)
+#define LOG_ERROR(format, ...)
+
+#endif
+
+#define QUIC_MAX_UDP_PAYLOAD_SIZE 1460
+
+#define quic_string(str) \
+    {                    \
+        sizeof(str) - 1, (u_char *)str}
+
+    typedef struct
+    {
+        size_t len;
+        u_char *data;
+    } quic_str_t;
+
+    typedef struct quic_secret_s
+    {
+        quic_str_t secret;
+        quic_str_t key;
+        quic_str_t iv;
+        quic_str_t hp;
+    } quic_secret_t;
+
+    typedef enum
+    {
+        ssl_encryption_initial = 0,
+        ssl_encryption_early_data = 1,
+        ssl_encryption_handshake = 2,
+        ssl_encryption_application = 3,
+    } ssl_encryption_level_t;
+
+    typedef enum
+    {
+        LONG = 0,
+        SHORT = 1,
+    } quic_header_type;
+
+    typedef struct
+    {
+        quic_secret_t client_secret;
+        ssl_encryption_level_t level; // QUIC Packet Process Level
+        quic_header_type header_type; // QUIC Packet Header Type
+
+        uint32_t version; // QUIC Version
+        uint8_t flags;    // QUIC Flags
+        u_char *data;     // QUIC Packet Data
+        size_t len;       // QUIC Packet Length
+        u_char *pos;      // Process Ptr
+        uint64_t largest_pkt_num;
+
+        quic_str_t dcid;  // QUIC DCID
+        quic_str_t scid;  // QUIC SCID
+        quic_str_t token; // QUIC TOKEN
+
+        size_t pkt_len;
+        uint64_t pkt_num; // QUIC Packet Number
+        u_char *plaintext;
+        quic_str_t payload; // Decrypted data
+
+        unsigned key_phase : 1;
+    } quic_dpt_t;
+
+    quic_dpt_t *quic_deprotection_new(void);
+    void quic_deprotection_free(quic_dpt_t *dpt);
+    void quic_deprotection_dump(quic_dpt_t *dpt);
+    int quic_deprotection(quic_dpt_t *dpt, const u_char *payload, size_t payload_len);
+
+#ifdef __cpluscplus
+}
+#endif