From 6c10cc5a4b6aa3e168cc25760a3fe9d14ffae52b Mon Sep 17 00:00:00 2001
From: SChernykh <sergey.v.chernykh@gmail.com>
Date: Sat, 24 Jun 2023 14:37:20 +0200
Subject: [PATCH] Zephyr coin support

Solo mining will require `--coin Zephyr` in command line, or `"coin": "Zephyr",` in `pools` section of config.json
---
 src/base/crypto/Coin.cpp                    |  1 +
 src/base/crypto/Coin.h                      |  1 +
 src/base/tools/cryptonote/BlockTemplate.cpp | 46 +++++++++++++++++++--
 3 files changed, 44 insertions(+), 4 deletions(-)

diff --git a/src/base/crypto/Coin.cpp b/src/base/crypto/Coin.cpp
index b63570e1d..2508e9cc7 100644
--- a/src/base/crypto/Coin.cpp
+++ b/src/base/crypto/Coin.cpp
@@ -53,6 +53,7 @@ static const CoinInfo coinInfo[] = {
     { Algorithm::RX_KEVA,         "KVA",      "Kevacoin",     0,      0,              MAGENTA_BG_BOLD(WHITE_BOLD_S " keva    ") },
     { Algorithm::KAWPOW_RVN,      "RVN",      "Ravencoin",    0,      0,              BLUE_BG_BOLD(   WHITE_BOLD_S " raven   ") },
     { Algorithm::RX_WOW,          "WOW",      "Wownero",      300,    100000000000,   MAGENTA_BG_BOLD(WHITE_BOLD_S " wownero ") },
+    { Algorithm::RX_0,            "ZEPH",     "Zephyr",       120,    1000000000000,  BLUE_BG_BOLD(   WHITE_BOLD_S " zephyr  ") },
 };
 
 
diff --git a/src/base/crypto/Coin.h b/src/base/crypto/Coin.h
index fbd36371f..166618b19 100644
--- a/src/base/crypto/Coin.h
+++ b/src/base/crypto/Coin.h
@@ -39,6 +39,7 @@ public:
         KEVA,
         RAVEN,
         WOWNERO,
+        ZEPHYR,
         MAX
     };
 
diff --git a/src/base/tools/cryptonote/BlockTemplate.cpp b/src/base/tools/cryptonote/BlockTemplate.cpp
index 6ce49679e..6f73ec700 100644
--- a/src/base/tools/cryptonote/BlockTemplate.cpp
+++ b/src/base/tools/cryptonote/BlockTemplate.cpp
@@ -197,6 +197,11 @@ bool xmrig::BlockTemplate::parse(bool hashes)
         ar(m_vote);
     }
 
+    if (m_coin == Coin::ZEPHYR) {
+        uint8_t pricing_record[24];
+        ar(pricing_record);
+    }
+
     // Miner transaction begin
     // Prefix begin
     setOffset(MINER_TX_PREFIX_OFFSET, ar.index());
@@ -220,8 +225,8 @@ bool xmrig::BlockTemplate::parse(bool hashes)
     ar(m_height);
     ar(m_numOutputs);
 
-    // must be 1 output
-    if (m_numOutputs != 1) {
+    const uint64_t expected_outputs = (m_coin == Coin::ZEPHYR) ? 2 : 1;
+    if (m_numOutputs != expected_outputs) {
         return false;
     }
 
@@ -237,7 +242,35 @@ bool xmrig::BlockTemplate::parse(bool hashes)
 
     ar(m_ephPublicKey, kKeySize);
 
-    if (m_outputType == 3) {
+    if (m_coin == Coin::ZEPHYR) {
+        if (m_outputType != 2) {
+            return false;
+        }
+
+        uint64_t asset_type_len;
+        ar(asset_type_len);
+        ar.skip(asset_type_len);
+        ar(m_viewTag);
+
+        uint64_t amount2;
+        ar(amount2);
+
+        uint8_t output_type2;
+        ar(output_type2);
+        if (output_type2 != 2) {
+            return false;
+        }
+
+        Span key2;
+        ar(key2, kKeySize);
+
+        ar(asset_type_len);
+        ar.skip(asset_type_len);
+
+        uint8_t view_tag2;
+        ar(view_tag2);
+    }
+    else if (m_outputType == 3) {
         ar(m_viewTag);
     }
 
@@ -248,6 +281,8 @@ bool xmrig::BlockTemplate::parse(bool hashes)
     BlobReader<true> ar_extra(blob(TX_EXTRA_OFFSET), m_extraSize);
     ar.skip(m_extraSize);
 
+    bool pubkey_offset_first = true;
+
     while (ar_extra.index() < m_extraSize) {
         uint64_t extra_tag  = 0;
         uint64_t size       = 0;
@@ -256,7 +291,10 @@ bool xmrig::BlockTemplate::parse(bool hashes)
 
         switch (extra_tag) {
         case 0x01: // TX_EXTRA_TAG_PUBKEY
-            setOffset(TX_PUBKEY_OFFSET, offset(TX_EXTRA_OFFSET) + ar_extra.index());
+            if (pubkey_offset_first) {
+                pubkey_offset_first = false;
+                setOffset(TX_PUBKEY_OFFSET, offset(TX_EXTRA_OFFSET) + ar_extra.index());
+            }
             ar_extra.skip(kKeySize);
             break;