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komodo_validation015.h
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komodo_validation015.h
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/******************************************************************************
* Copyright © 2014-2018 The SuperNET Developers. *
* *
* See the AUTHORS, DEVELOPER-AGREEMENT and LICENSE files at *
* the top-level directory of this distribution for the individual copyright *
* holder information and the developer policies on copyright and licensing. *
* *
* Unless otherwise agreed in a custom licensing agreement, no part of the *
* SuperNET software, including this file may be copied, modified, propagated *
* or distributed except according to the terms contained in the LICENSE file *
* *
* Removal or modification of this copyright notice is prohibited. *
* *
******************************************************************************/
// in init.cpp at top of AppInitParameterInteraction()
// int32_t komodo_init();
// komodo_init();
// in rpc/blockchain.cpp
// #include "komodo_rpcblockchain.h"
// ...
// { "blockchain", "calc_MoM", &calc_MoM, {"height", "MoMdepth"} },
// { "blockchain", "height_MoM", &height_MoM, {"height"} },
// in validation.cpp
// at end of ConnectBlock: komodo_connectblock(pindex,*(CBlock *)&block);
// at beginning DisconnectBlock: komodo_disconnect((CBlockIndex *)pindex,(CBlock *)&block);
/* add to ContextualCheckBlockHeader
uint256 hash = block.GetHash();
int32_t notarized_height;
....
else if ( komodo_checkpoint(¬arized_height,(int32_t)nHeight,hash) < 0 )
{
CBlockIndex *heightblock = chainActive[nHeight];
if ( heightblock != 0 && heightblock->GetBlockHash() == hash )
{
//fprintf(stderr,"got a pre notarization block that matches height.%d\n",(int32_t)nHeight);
return true;
} else return state.DoS(100, error("%s: forked chain %d older than last notarized (height %d) vs %d", __func__,nHeight, notarized_height));
}
*/
/* add to getinfo
{
int32_t komodo_prevMoMheight();
extern uint256 NOTARIZED_HASH,NOTARIZED_DESTTXID,NOTARIZED_MOM;
extern int32_t NOTARIZED_HEIGHT,NOTARIZED_MOMDEPTH;
obj.pushKV("notarizedhash", NOTARIZED_HASH.GetHex());
obj.pushKV("notarizedtxid", NOTARIZED_DESTTXID.GetHex());
obj.pushKV("notarized", (int)NOTARIZED_HEIGHT);
obj.pushKV("prevMoMheight", (int)komodo_prevMoMheight());
obj.pushKV("notarized_MoMdepth", (int)NOTARIZED_MOMDEPTH);
obj.pushKV("notarized_MoM", NOTARIZED_MOM.GetHex());
}*/
#include <wallet/wallet.h>
#include <base58.h>
#include <komodo_notaries.h>
#include <key_io.h>
char ASSETCHAINS_SYMBOL[65] = { "KREDS" };
#define SATOSHIDEN ((uint64_t)100000000L)
#define dstr(x) ((double)(x) / SATOSHIDEN)
#define portable_mutex_t pthread_mutex_t
#define portable_mutex_init(ptr) pthread_mutex_init(ptr,NULL)
#define portable_mutex_lock pthread_mutex_lock
#define portable_mutex_unlock pthread_mutex_unlock
#define CRYPTO777_PUBSECPSTR "020e46e79a2a8d12b9b5d12c7a91adb4e454edfae43c0a0cb805427d2ac7613fd9"
#define KOMODO_MINRATIFY 11
#define KOMODO_ELECTION_GAP 2000
#define KOMODO_ASSETCHAIN_MAXLEN 65
#define KOMODO_NOTARIES_TIMESTAMP1 1525132800 // May 1st 2018 1530921600 // 7/7/2017
#define KOMODO_NOTARIES_HEIGHT1 ((814000 / KOMODO_ELECTION_GAP) * KOMODO_ELECTION_GAP)
union _bits256 { uint8_t bytes[32]; uint16_t ushorts[16]; uint32_t uints[8]; uint64_t ulongs[4]; uint64_t txid; };
typedef union _bits256 bits256;
struct sha256_vstate { uint64_t length; uint32_t state[8],curlen; uint8_t buf[64]; };
struct rmd160_vstate { uint64_t length; uint8_t buf[64]; uint32_t curlen, state[5]; };
int32_t KOMODO_TXINDEX = 1;
void ImportAddress(const CKredsAddress& address, const string& strLabel);
int32_t gettxout_scriptPubKey(int32_t height,uint8_t *scriptPubKey,int32_t maxsize,uint256 txid,int32_t n)
{
static uint256 zero; int32_t i,m; uint8_t *ptr; CTransactionRef tx=0; uint256 hashBlock;
LOCK(cs_main);
if ( KOMODO_TXINDEX != 0 )
{
if ( GetTransaction(txid,tx,Params().GetConsensus(),hashBlock,false) == 0 )
{
//fprintf(stderr,"ht.%d couldnt get txid.%s\n",height,txid.GetHex().c_str());
return(-1);
}
}
else
{
CWallet * const pwallet = pwalletMain;
if ( pwallet != 0 )
{
auto it = pwallet->mapWallet.find(txid);
if ( it != pwallet->mapWallet.end() )
{
const CWalletTx& wtx = it->second;
tx = wtx.tx;
//fprintf(stderr,"found tx in wallet\n");
}
}
}
if ( tx != 0 && n >= 0 && n <= (int32_t)tx->vout.size() ) // vout.size() seems off by 1
{
ptr = (uint8_t *)tx->vout[n].scriptPubKey.data();
m = tx->vout[n].scriptPubKey.size();
for (i=0; i<maxsize&&i<m; i++)
scriptPubKey[i] = ptr[i];
//fprintf(stderr,"got scriptPubKey[%d] via rawtransaction ht.%d %s\n",m,height,txid.GetHex().c_str());
return(i);
}
else if ( tx != 0 )
fprintf(stderr,"gettxout_scriptPubKey ht.%d n.%d > voutsize.%d\n",height,n,(int32_t)tx->vout.size());
return(-1);
}
int32_t komodo_importaddress(std::string addr)
{
CKredsAddress address(addr);
CWallet * const pwallet = pwalletMain;
if ( pwallet != 0 )
{
LOCK2(cs_main, pwallet->cs_wallet);
if ( address.IsValid() != 0 )
{
isminetype mine = IsMine(*pwallet, address.Get());
if ( (mine & ISMINE_SPENDABLE) != 0 || (mine & ISMINE_WATCH_ONLY) != 0 )
{
//printf("komodo_importaddress %s already there\n",EncodeDestination(address).c_str());
return(0);
}
else
{
//printf("komodo_importaddress %s\n",addr.c_str());
ImportAddress( address, addr);
return(1);
}
}
LogPrint("dpow","%s -> komodo_importaddress failed valid.%d\n",addr.c_str(),address.IsValid());
}
return(-1);
}
// following is ported from libtom
/* LibTomCrypt, modular cryptographic library -- Tom St Denis
*
* LibTomCrypt is a library that provides various cryptographic
* algorithms in a highly modular and flexible manner.
*
* The library is free for all purposes without any express
* guarantee it works.
*
* Tom St Denis, tomstdenis@gmail.com, http://libtom.org
*/
#define STORE32L(x, y) \
{ (y)[3] = (uint8_t)(((x)>>24)&255); (y)[2] = (uint8_t)(((x)>>16)&255); \
(y)[1] = (uint8_t)(((x)>>8)&255); (y)[0] = (uint8_t)((x)&255); }
#define LOAD32L(x, y) \
{ x = (uint32_t)(((uint64_t)((y)[3] & 255)<<24) | \
((uint32_t)((y)[2] & 255)<<16) | \
((uint32_t)((y)[1] & 255)<<8) | \
((uint32_t)((y)[0] & 255))); }
#define STORE64L(x, y) \
{ (y)[7] = (uint8_t)(((x)>>56)&255); (y)[6] = (uint8_t)(((x)>>48)&255); \
(y)[5] = (uint8_t)(((x)>>40)&255); (y)[4] = (uint8_t)(((x)>>32)&255); \
(y)[3] = (uint8_t)(((x)>>24)&255); (y)[2] = (uint8_t)(((x)>>16)&255); \
(y)[1] = (uint8_t)(((x)>>8)&255); (y)[0] = (uint8_t)((x)&255); }
#define LOAD64L(x, y) \
{ x = (((uint64_t)((y)[7] & 255))<<56)|(((uint64_t)((y)[6] & 255))<<48)| \
(((uint64_t)((y)[5] & 255))<<40)|(((uint64_t)((y)[4] & 255))<<32)| \
(((uint64_t)((y)[3] & 255))<<24)|(((uint64_t)((y)[2] & 255))<<16)| \
(((uint64_t)((y)[1] & 255))<<8)|(((uint64_t)((y)[0] & 255))); }
#define STORE32H(x, y) \
{ (y)[0] = (uint8_t)(((x)>>24)&255); (y)[1] = (uint8_t)(((x)>>16)&255); \
(y)[2] = (uint8_t)(((x)>>8)&255); (y)[3] = (uint8_t)((x)&255); }
#define LOAD32H(x, y) \
{ x = (uint32_t)(((uint64_t)((y)[0] & 255)<<24) | \
((uint32_t)((y)[1] & 255)<<16) | \
((uint32_t)((y)[2] & 255)<<8) | \
((uint32_t)((y)[3] & 255))); }
#define STORE64H(x, y) \
{ (y)[0] = (uint8_t)(((x)>>56)&255); (y)[1] = (uint8_t)(((x)>>48)&255); \
(y)[2] = (uint8_t)(((x)>>40)&255); (y)[3] = (uint8_t)(((x)>>32)&255); \
(y)[4] = (uint8_t)(((x)>>24)&255); (y)[5] = (uint8_t)(((x)>>16)&255); \
(y)[6] = (uint8_t)(((x)>>8)&255); (y)[7] = (uint8_t)((x)&255); }
#define LOAD64H(x, y) \
{ x = (((uint64_t)((y)[0] & 255))<<56)|(((uint64_t)((y)[1] & 255))<<48) | \
(((uint64_t)((y)[2] & 255))<<40)|(((uint64_t)((y)[3] & 255))<<32) | \
(((uint64_t)((y)[4] & 255))<<24)|(((uint64_t)((y)[5] & 255))<<16) | \
(((uint64_t)((y)[6] & 255))<<8)|(((uint64_t)((y)[7] & 255))); }
// Various logical functions
#define RORc(x, y) ( ((((uint32_t)(x)&0xFFFFFFFFUL)>>(uint32_t)((y)&31)) | ((uint32_t)(x)<<(uint32_t)(32-((y)&31)))) & 0xFFFFFFFFUL)
#define Ch(x,y,z) (z ^ (x & (y ^ z)))
#define Maj(x,y,z) (((x | y) & z) | (x & y))
#define S(x, n) RORc((x),(n))
#define R(x, n) (((x)&0xFFFFFFFFUL)>>(n))
#define Sigma0(x) (S(x, 2) ^ S(x, 13) ^ S(x, 22))
#define Sigma1(x) (S(x, 6) ^ S(x, 11) ^ S(x, 25))
#define Gamma0(x) (S(x, 7) ^ S(x, 18) ^ R(x, 3))
#define Gamma1(x) (S(x, 17) ^ S(x, 19) ^ R(x, 10))
#define MIN(x, y) ( ((x)<(y))?(x):(y) )
static inline int32_t sha256_vcompress(struct sha256_vstate * md,uint8_t *buf)
{
uint32_t S[8],W[64],t0,t1,i;
for (i=0; i<8; i++) // copy state into S
S[i] = md->state[i];
for (i=0; i<16; i++) // copy the state into 512-bits into W[0..15]
LOAD32H(W[i],buf + (4*i));
for (i=16; i<64; i++) // fill W[16..63]
W[i] = Gamma1(W[i - 2]) + W[i - 7] + Gamma0(W[i - 15]) + W[i - 16];
#define RND(a,b,c,d,e,f,g,h,i,ki) \
t0 = h + Sigma1(e) + Ch(e, f, g) + ki + W[i]; \
t1 = Sigma0(a) + Maj(a, b, c); \
d += t0; \
h = t0 + t1;
RND(S[0],S[1],S[2],S[3],S[4],S[5],S[6],S[7],0,0x428a2f98);
RND(S[7],S[0],S[1],S[2],S[3],S[4],S[5],S[6],1,0x71374491);
RND(S[6],S[7],S[0],S[1],S[2],S[3],S[4],S[5],2,0xb5c0fbcf);
RND(S[5],S[6],S[7],S[0],S[1],S[2],S[3],S[4],3,0xe9b5dba5);
RND(S[4],S[5],S[6],S[7],S[0],S[1],S[2],S[3],4,0x3956c25b);
RND(S[3],S[4],S[5],S[6],S[7],S[0],S[1],S[2],5,0x59f111f1);
RND(S[2],S[3],S[4],S[5],S[6],S[7],S[0],S[1],6,0x923f82a4);
RND(S[1],S[2],S[3],S[4],S[5],S[6],S[7],S[0],7,0xab1c5ed5);
RND(S[0],S[1],S[2],S[3],S[4],S[5],S[6],S[7],8,0xd807aa98);
RND(S[7],S[0],S[1],S[2],S[3],S[4],S[5],S[6],9,0x12835b01);
RND(S[6],S[7],S[0],S[1],S[2],S[3],S[4],S[5],10,0x243185be);
RND(S[5],S[6],S[7],S[0],S[1],S[2],S[3],S[4],11,0x550c7dc3);
RND(S[4],S[5],S[6],S[7],S[0],S[1],S[2],S[3],12,0x72be5d74);
RND(S[3],S[4],S[5],S[6],S[7],S[0],S[1],S[2],13,0x80deb1fe);
RND(S[2],S[3],S[4],S[5],S[6],S[7],S[0],S[1],14,0x9bdc06a7);
RND(S[1],S[2],S[3],S[4],S[5],S[6],S[7],S[0],15,0xc19bf174);
RND(S[0],S[1],S[2],S[3],S[4],S[5],S[6],S[7],16,0xe49b69c1);
RND(S[7],S[0],S[1],S[2],S[3],S[4],S[5],S[6],17,0xefbe4786);
RND(S[6],S[7],S[0],S[1],S[2],S[3],S[4],S[5],18,0x0fc19dc6);
RND(S[5],S[6],S[7],S[0],S[1],S[2],S[3],S[4],19,0x240ca1cc);
RND(S[4],S[5],S[6],S[7],S[0],S[1],S[2],S[3],20,0x2de92c6f);
RND(S[3],S[4],S[5],S[6],S[7],S[0],S[1],S[2],21,0x4a7484aa);
RND(S[2],S[3],S[4],S[5],S[6],S[7],S[0],S[1],22,0x5cb0a9dc);
RND(S[1],S[2],S[3],S[4],S[5],S[6],S[7],S[0],23,0x76f988da);
RND(S[0],S[1],S[2],S[3],S[4],S[5],S[6],S[7],24,0x983e5152);
RND(S[7],S[0],S[1],S[2],S[3],S[4],S[5],S[6],25,0xa831c66d);
RND(S[6],S[7],S[0],S[1],S[2],S[3],S[4],S[5],26,0xb00327c8);
RND(S[5],S[6],S[7],S[0],S[1],S[2],S[3],S[4],27,0xbf597fc7);
RND(S[4],S[5],S[6],S[7],S[0],S[1],S[2],S[3],28,0xc6e00bf3);
RND(S[3],S[4],S[5],S[6],S[7],S[0],S[1],S[2],29,0xd5a79147);
RND(S[2],S[3],S[4],S[5],S[6],S[7],S[0],S[1],30,0x06ca6351);
RND(S[1],S[2],S[3],S[4],S[5],S[6],S[7],S[0],31,0x14292967);
RND(S[0],S[1],S[2],S[3],S[4],S[5],S[6],S[7],32,0x27b70a85);
RND(S[7],S[0],S[1],S[2],S[3],S[4],S[5],S[6],33,0x2e1b2138);
RND(S[6],S[7],S[0],S[1],S[2],S[3],S[4],S[5],34,0x4d2c6dfc);
RND(S[5],S[6],S[7],S[0],S[1],S[2],S[3],S[4],35,0x53380d13);
RND(S[4],S[5],S[6],S[7],S[0],S[1],S[2],S[3],36,0x650a7354);
RND(S[3],S[4],S[5],S[6],S[7],S[0],S[1],S[2],37,0x766a0abb);
RND(S[2],S[3],S[4],S[5],S[6],S[7],S[0],S[1],38,0x81c2c92e);
RND(S[1],S[2],S[3],S[4],S[5],S[6],S[7],S[0],39,0x92722c85);
RND(S[0],S[1],S[2],S[3],S[4],S[5],S[6],S[7],40,0xa2bfe8a1);
RND(S[7],S[0],S[1],S[2],S[3],S[4],S[5],S[6],41,0xa81a664b);
RND(S[6],S[7],S[0],S[1],S[2],S[3],S[4],S[5],42,0xc24b8b70);
RND(S[5],S[6],S[7],S[0],S[1],S[2],S[3],S[4],43,0xc76c51a3);
RND(S[4],S[5],S[6],S[7],S[0],S[1],S[2],S[3],44,0xd192e819);
RND(S[3],S[4],S[5],S[6],S[7],S[0],S[1],S[2],45,0xd6990624);
RND(S[2],S[3],S[4],S[5],S[6],S[7],S[0],S[1],46,0xf40e3585);
RND(S[1],S[2],S[3],S[4],S[5],S[6],S[7],S[0],47,0x106aa070);
RND(S[0],S[1],S[2],S[3],S[4],S[5],S[6],S[7],48,0x19a4c116);
RND(S[7],S[0],S[1],S[2],S[3],S[4],S[5],S[6],49,0x1e376c08);
RND(S[6],S[7],S[0],S[1],S[2],S[3],S[4],S[5],50,0x2748774c);
RND(S[5],S[6],S[7],S[0],S[1],S[2],S[3],S[4],51,0x34b0bcb5);
RND(S[4],S[5],S[6],S[7],S[0],S[1],S[2],S[3],52,0x391c0cb3);
RND(S[3],S[4],S[5],S[6],S[7],S[0],S[1],S[2],53,0x4ed8aa4a);
RND(S[2],S[3],S[4],S[5],S[6],S[7],S[0],S[1],54,0x5b9cca4f);
RND(S[1],S[2],S[3],S[4],S[5],S[6],S[7],S[0],55,0x682e6ff3);
RND(S[0],S[1],S[2],S[3],S[4],S[5],S[6],S[7],56,0x748f82ee);
RND(S[7],S[0],S[1],S[2],S[3],S[4],S[5],S[6],57,0x78a5636f);
RND(S[6],S[7],S[0],S[1],S[2],S[3],S[4],S[5],58,0x84c87814);
RND(S[5],S[6],S[7],S[0],S[1],S[2],S[3],S[4],59,0x8cc70208);
RND(S[4],S[5],S[6],S[7],S[0],S[1],S[2],S[3],60,0x90befffa);
RND(S[3],S[4],S[5],S[6],S[7],S[0],S[1],S[2],61,0xa4506ceb);
RND(S[2],S[3],S[4],S[5],S[6],S[7],S[0],S[1],62,0xbef9a3f7);
RND(S[1],S[2],S[3],S[4],S[5],S[6],S[7],S[0],63,0xc67178f2);
#undef RND
for (i=0; i<8; i++) // feedback
md->state[i] = md->state[i] + S[i];
return(0);
}
#undef RORc
#undef Ch
#undef Maj
#undef S
#undef R
#undef Sigma0
#undef Sigma1
#undef Gamma0
#undef Gamma1
static inline void sha256_vinit(struct sha256_vstate * md)
{
md->curlen = 0;
md->length = 0;
md->state[0] = 0x6A09E667UL;
md->state[1] = 0xBB67AE85UL;
md->state[2] = 0x3C6EF372UL;
md->state[3] = 0xA54FF53AUL;
md->state[4] = 0x510E527FUL;
md->state[5] = 0x9B05688CUL;
md->state[6] = 0x1F83D9ABUL;
md->state[7] = 0x5BE0CD19UL;
}
static inline int32_t sha256_vprocess(struct sha256_vstate *md,const uint8_t *in,uint64_t inlen)
{
uint64_t n; int32_t err;
if ( md->curlen > sizeof(md->buf) )
return(-1);
while ( inlen > 0 )
{
if ( md->curlen == 0 && inlen >= 64 )
{
if ( (err= sha256_vcompress(md,(uint8_t *)in)) != 0 )
return(err);
md->length += 64 * 8, in += 64, inlen -= 64;
}
else
{
n = MIN(inlen,64 - md->curlen);
memcpy(md->buf + md->curlen,in,(size_t)n);
md->curlen += n, in += n, inlen -= n;
if ( md->curlen == 64 )
{
if ( (err= sha256_vcompress(md,md->buf)) != 0 )
return(err);
md->length += 8*64;
md->curlen = 0;
}
}
}
return(0);
}
static inline int32_t sha256_vdone(struct sha256_vstate *md,uint8_t *out)
{
int32_t i;
if ( md->curlen >= sizeof(md->buf) )
return(-1);
md->length += md->curlen * 8; // increase the length of the message
md->buf[md->curlen++] = (uint8_t)0x80; // append the '1' bit
// if len > 56 bytes we append zeros then compress. Then we can fall back to padding zeros and length encoding like normal.
if ( md->curlen > 56 )
{
while ( md->curlen < 64 )
md->buf[md->curlen++] = (uint8_t)0;
sha256_vcompress(md,md->buf);
md->curlen = 0;
}
while ( md->curlen < 56 ) // pad upto 56 bytes of zeroes
md->buf[md->curlen++] = (uint8_t)0;
STORE64H(md->length,md->buf+56); // store length
sha256_vcompress(md,md->buf);
for (i=0; i<8; i++) // copy output
STORE32H(md->state[i],out+(4*i));
return(0);
}
// end libtom
void vcalc_sha256(char deprecated[(256 >> 3) * 2 + 1],uint8_t hash[256 >> 3],uint8_t *src,int32_t len)
{
struct sha256_vstate md;
sha256_vinit(&md);
sha256_vprocess(&md,src,len);
sha256_vdone(&md,hash);
}
bits256 bits256_doublesha256(char *deprecated,uint8_t *data,int32_t datalen)
{
bits256 hash,hash2; int32_t i;
vcalc_sha256(0,hash.bytes,data,datalen);
vcalc_sha256(0,hash2.bytes,hash.bytes,sizeof(hash));
for (i=0; i<(int32_t)sizeof(hash); i++)
hash.bytes[i] = hash2.bytes[sizeof(hash) - 1 - i];
return(hash);
}
int32_t iguana_rwnum(int32_t rwflag,uint8_t *serialized,int32_t len,void *endianedp)
{
int32_t i; uint64_t x;
if ( rwflag == 0 )
{
x = 0;
for (i=len-1; i>=0; i--)
{
x <<= 8;
x |= serialized[i];
}
switch ( len )
{
case 1: *(uint8_t *)endianedp = (uint8_t)x; break;
case 2: *(uint16_t *)endianedp = (uint16_t)x; break;
case 4: *(uint32_t *)endianedp = (uint32_t)x; break;
case 8: *(uint64_t *)endianedp = (uint64_t)x; break;
}
}
else
{
x = 0;
switch ( len )
{
case 1: x = *(uint8_t *)endianedp; break;
case 2: x = *(uint16_t *)endianedp; break;
case 4: x = *(uint32_t *)endianedp; break;
case 8: x = *(uint64_t *)endianedp; break;
}
for (i=0; i<len; i++,x >>= 8)
serialized[i] = (uint8_t)(x & 0xff);
}
return(len);
}
int32_t iguana_rwbignum(int32_t rwflag,uint8_t *serialized,int32_t len,uint8_t *endianedp)
{
int32_t i;
if ( rwflag == 0 )
{
for (i=0; i<len; i++)
endianedp[i] = serialized[i];
}
else
{
for (i=0; i<len; i++)
serialized[i] = endianedp[i];
}
return(len);
}
int32_t bitweight(uint64_t x)
{
int i,wt = 0;
for (i=0; i<64; i++)
if ( (1LL << i) & x )
wt++;
return(wt);
}
int32_t _unhex(char c)
{
if ( c >= '0' && c <= '9' )
return(c - '0');
else if ( c >= 'a' && c <= 'f' )
return(c - 'a' + 10);
else if ( c >= 'A' && c <= 'F' )
return(c - 'A' + 10);
return(-1);
}
int32_t is_hexstr(char *str,int32_t n)
{
int32_t i;
if ( str == 0 || str[0] == 0 )
return(0);
for (i=0; str[i]!=0; i++)
{
if ( n > 0 && i >= n )
break;
if ( _unhex(str[i]) < 0 )
break;
}
if ( n == 0 )
return(i);
return(i == n);
}
int32_t unhex(char c)
{
int32_t hex;
if ( (hex= _unhex(c)) < 0 )
{
//printf("unhex: illegal hexchar.(%c)\n",c);
}
return(hex);
}
unsigned char _decode_hex(char *hex) { return((unhex(hex[0])<<4) | unhex(hex[1])); }
int32_t decode_hex(uint8_t *bytes,int32_t n,char *hex)
{
int32_t adjust,i = 0;
//printf("decode.(%s)\n",hex);
if ( is_hexstr(hex,n) <= 0 )
{
memset(bytes,0,n);
return(n);
}
if ( hex[n-1] == '\n' || hex[n-1] == '\r' )
hex[--n] = 0;
if ( n == 0 || (hex[n*2+1] == 0 && hex[n*2] != 0) )
{
if ( n > 0 )
{
bytes[0] = unhex(hex[0]);
printf("decode_hex n.%d hex[0] (%c) -> %d hex.(%s) [n*2+1: %d] [n*2: %d %c] len.%ld\n",n,hex[0],bytes[0],hex,hex[n*2+1],hex[n*2],hex[n*2],(long)strlen(hex));
}
bytes++;
hex++;
adjust = 1;
} else adjust = 0;
if ( n > 0 )
{
for (i=0; i<n; i++)
bytes[i] = _decode_hex(&hex[i*2]);
}
//bytes[i] = 0;
return(n + adjust);
}
char hexbyte(int32_t c)
{
c &= 0xf;
if ( c < 10 )
return('0'+c);
else if ( c < 16 )
return('a'+c-10);
else return(0);
}
int32_t init_hexbytes_noT(char *hexbytes,unsigned char *message,long len)
{
int32_t i;
if ( len <= 0 )
{
hexbytes[0] = 0;
return(1);
}
for (i=0; i<len; i++)
{
hexbytes[i*2] = hexbyte((message[i]>>4) & 0xf);
hexbytes[i*2 + 1] = hexbyte(message[i] & 0xf);
//printf("i.%d (%02x) [%c%c]\n",i,message[i],hexbytes[i*2],hexbytes[i*2+1]);
}
hexbytes[len*2] = 0;
//printf("len.%ld\n",len*2+1);
return((int32_t)len*2+1);
}
uint32_t komodo_chainactive_timestamp()
{
if ( chainActive.Tip() != 0 )
return((uint32_t)chainActive.Tip()->GetBlockTime());
else return(0);
}
CBlockIndex *komodo_chainactive(int32_t height)
{
CBlockIndex *tipindex;
if ( (tipindex= chainActive.Tip()) != 0 )
{
if ( height <= tipindex->nHeight )
return(chainActive[height]);
// else fprintf(stderr,"komodo_chainactive height %d > active.%d\n",height,chainActive.Tip()->nHeight);
}
//fprintf(stderr,"komodo_chainactive null chainActive.Tip() height %d\n",height);
return(0);
}
uint32_t komodo_heightstamp(int32_t height)
{
CBlockIndex *ptr;
if ( height > 0 && (ptr= komodo_chainactive(height)) != 0 )
return(ptr->nTime);
//else fprintf(stderr,"komodo_heightstamp null ptr for block.%d\n",height);
return(0);
}
extern const char *Notaries_elected0[][2];
extern const char *Notaries_elected1[][3];
struct notarized_checkpoint
{
uint256 notarized_hash,notarized_desttxid,MoM,MoMoM;
int32_t nHeight,notarized_height,MoMdepth,MoMoMdepth,MoMoMoffset,kmdstarti,kmdendi;
} *NPOINTS;
std::string NOTARY_PUBKEY;
uint8_t NOTARY_PUBKEY33[33];
uint256 NOTARIZED_HASH,NOTARIZED_DESTTXID,NOTARIZED_MOM;
int32_t NUM_NPOINTS,last_NPOINTSi,NOTARIZED_HEIGHT,NOTARIZED_MOMDEPTH,KOMODO_NEEDPUBKEYS;
portable_mutex_t komodo_mutex;
void komodo_importpubkeys()
{
int32_t i,n,m,offset = 1,val,dispflag = 0; char *pubkey;
n = (int32_t)(sizeof(Notaries_elected1)/sizeof(*Notaries_elected1));
for (i=0; i<n; i++) // each year add new notaries too
{
if ( Notaries_elected1[i][offset] == 0 )
continue;
if ( (m= (int32_t)strlen((char *)Notaries_elected1[i][offset])) > 0 )
{
pubkey = (char*) Notaries_elected1[i][offset];
const std::vector<unsigned char> vPubkey(pubkey, pubkey + m);
std::string addr = CKredsAddress(CPubKey(ParseHex(pubkey)).GetID()).ToString();
//fprintf(stderr,"pubkey=%s, addr=%s\n", pubkey, addr.c_str() );
if ( (val= komodo_importaddress(addr)) < 0 )
LogPrint("dpow","dpow: error importing (%s)\n",addr.c_str());
else if ( val == 0 )
dispflag++;
}
}
if ( dispflag != 0 )
fprintf(stderr,"%d Notary pubkeys imported\n",dispflag);
}
int32_t komodo_init()
{
NOTARY_PUBKEY = GetArg("-pubkey", "");
decode_hex(NOTARY_PUBKEY33,33,(char *)NOTARY_PUBKEY.c_str());
if ( GetBoolArg("-txindex", DEFAULT_TXINDEX) == 0 )
{
//fprintf(stderr,"txindex is off, import notary pubkeys\n");
KOMODO_NEEDPUBKEYS = 1;
KOMODO_TXINDEX = 0;
}
return(0);
}
bits256 iguana_merkle(bits256 *tree,int32_t txn_count)
{
int32_t i,n=0,prev; uint8_t serialized[sizeof(bits256) * 2];
if ( txn_count == 1 )
return(tree[0]);
prev = 0;
while ( txn_count > 1 )
{
if ( (txn_count & 1) != 0 )
tree[prev + txn_count] = tree[prev + txn_count-1], txn_count++;
n += txn_count;
for (i=0; i<txn_count; i+=2)
{
iguana_rwbignum(1,serialized,sizeof(*tree),tree[prev + i].bytes);
iguana_rwbignum(1,&serialized[sizeof(*tree)],sizeof(*tree),tree[prev + i + 1].bytes);
tree[n + (i >> 1)] = bits256_doublesha256(0,serialized,sizeof(serialized));
}
prev = n;
txn_count >>= 1;
}
return(tree[n]);
}
uint256 komodo_calcMoM(int32_t height,int32_t MoMdepth)
{
static uint256 zero; bits256 MoM,*tree; CBlockIndex *pindex; int32_t i;
if ( MoMdepth >= height )
return(zero);
tree = (bits256 *)calloc(MoMdepth * 3,sizeof(*tree));
for (i=0; i<MoMdepth; i++)
{
if ( (pindex= komodo_chainactive(height - i)) != 0 )
memcpy(&tree[i],&pindex->hashMerkleRoot,sizeof(bits256));
else
{
free(tree);
return(zero);
}
}
MoM = iguana_merkle(tree,MoMdepth);
free(tree);
return(*(uint256 *)&MoM);
}
int32_t komodo_notaries(uint8_t pubkeys[64][33],int32_t height,uint32_t timestamp)
{
static uint8_t elected_pubkeys0[64][33],elected_pubkeys1[64][33],did0,did1; static int32_t n0,n1;
int32_t i;
if ( timestamp == 0 && ASSETCHAINS_SYMBOL[0] != 0 )
timestamp = komodo_heightstamp(height);
else if ( ASSETCHAINS_SYMBOL[0] == 0 )
timestamp = 0;
if ( ASSETCHAINS_SYMBOL[0] != 0 )
{
if ( (timestamp != 0 && timestamp <= KOMODO_NOTARIES_TIMESTAMP1) || (ASSETCHAINS_SYMBOL[0] == 0 && height <= KOMODO_NOTARIES_HEIGHT1) )
{
if ( did0 == 0 )
{
n0 = (int32_t)(sizeof(Notaries_elected0)/sizeof(*Notaries_elected0));
for (i=0; i<n0; i++)
decode_hex(elected_pubkeys0[i],33,(char *)Notaries_elected0[i][1]);
did0 = 1;
}
memcpy(pubkeys,elected_pubkeys0,n0 * 33);
//if ( ASSETCHAINS_SYMBOL[0] != 0 )
//fprintf(stderr,"%s height.%d t.%u elected.%d notaries\n",ASSETCHAINS_SYMBOL,height,timestamp,n0);
return(n0);
}
else //if ( (timestamp != 0 && timestamp <= KOMODO_NOTARIES_TIMESTAMP2) || height <= KOMODO_NOTARIES_HEIGHT2 )
{
if ( did1 == 0 )
{
n1 = (int32_t)(sizeof(Notaries_elected1)/sizeof(*Notaries_elected1));
for (i=0; i<n1; i++)
decode_hex(elected_pubkeys1[i],33,(char *)Notaries_elected1[i][1]);
if ( 0 && ASSETCHAINS_SYMBOL[0] != 0 )
fprintf(stderr,"%s height.%d t.%u elected.%d notaries2\n",ASSETCHAINS_SYMBOL,height,timestamp,n1);
did1 = 1;
}
memcpy(pubkeys,elected_pubkeys1,n1 * 33);
return(n1);
}
}
return(-1);
}
void komodo_clearstate()
{
portable_mutex_lock(&komodo_mutex);
memset(&NOTARIZED_HEIGHT,0,sizeof(NOTARIZED_HEIGHT));
memset(&NOTARIZED_HASH,0,sizeof(NOTARIZED_HASH));
memset(&NOTARIZED_DESTTXID,0,sizeof(NOTARIZED_DESTTXID));
memset(&NOTARIZED_MOM,0,sizeof(NOTARIZED_MOM));
memset(&NOTARIZED_MOMDEPTH,0,sizeof(NOTARIZED_MOMDEPTH));
memset(&last_NPOINTSi,0,sizeof(last_NPOINTSi));
portable_mutex_unlock(&komodo_mutex);
}
void komodo_disconnect(CBlockIndex *pindex,CBlock *block)
{
if ( (int32_t)pindex->nHeight <= NOTARIZED_HEIGHT )
{
fprintf(stderr,"komodo_disconnect unexpected reorg pindex->nHeight.%d vs %d\n",(int32_t)pindex->nHeight,NOTARIZED_HEIGHT);
komodo_clearstate(); // bruteforce shortcut. on any reorg, no active notarization until next one is seen
}
}
struct notarized_checkpoint *komodo_npptr(int32_t height)
{
int32_t i; struct notarized_checkpoint *np = 0;
for (i=NUM_NPOINTS-1; i>=0; i--)
{
np = &NPOINTS[i];
if ( np->MoMdepth > 0 && height > np->notarized_height-np->MoMdepth && height <= np->notarized_height )
return(np);
}
return(0);
}
int32_t komodo_prevMoMheight()
{
static uint256 zero;
int32_t i; struct notarized_checkpoint *np = 0;
for (i=NUM_NPOINTS-1; i>=0; i--)
{
np = &NPOINTS[i];
if ( np->MoM != zero )
return(np->notarized_height);
}
return(0);
}
//struct komodo_state *komodo_stateptr(char *symbol,char *dest);
int32_t komodo_notarized_height(int32_t *prevMoMheightp,uint256 *hashp,uint256 *txidp)
{
*hashp = NOTARIZED_HASH;
*txidp = NOTARIZED_DESTTXID;
*prevMoMheightp = komodo_prevMoMheight();
return(NOTARIZED_HEIGHT);
}
int32_t komodo_MoMdata(int32_t *notarized_htp,uint256 *MoMp,uint256 *kmdtxidp,int32_t height,uint256 *MoMoMp,int32_t *MoMoMoffsetp,int32_t *MoMoMdepthp,int32_t *kmdstartip,int32_t *kmdendip)
{
struct notarized_checkpoint *np = 0;
if ( (np= komodo_npptr(height)) != 0 )
{
*notarized_htp = np->notarized_height;
*MoMp = np->MoM;
*kmdtxidp = np->notarized_desttxid;
*MoMoMp = np->MoMoM;
*MoMoMoffsetp = np->MoMoMoffset;
*MoMoMdepthp = np->MoMoMdepth;
*kmdstartip = np->kmdstarti;
*kmdendip = np->kmdendi;
return(np->MoMdepth);
}
*notarized_htp = *MoMoMoffsetp = *MoMoMdepthp = *kmdstartip = *kmdendip = 0;
memset(MoMp,0,sizeof(*MoMp));
memset(MoMoMp,0,sizeof(*MoMoMp));
memset(kmdtxidp,0,sizeof(*kmdtxidp));
return(0);
}
int32_t komodo_notarizeddata(int32_t nHeight,uint256 *notarized_hashp,uint256 *notarized_desttxidp)
{
struct notarized_checkpoint *np = 0; int32_t i=0,flag = 0;
if ( NUM_NPOINTS > 0 )
{
flag = 0;
if ( last_NPOINTSi < NUM_NPOINTS && last_NPOINTSi > 0 )
{
np = &NPOINTS[last_NPOINTSi-1];
if ( np->nHeight < nHeight )
{
for (i=last_NPOINTSi; i<NUM_NPOINTS; i++)
{
if ( NPOINTS[i].nHeight >= nHeight )
{
//printf("flag.1 i.%d np->ht %d [%d].ht %d >= nHeight.%d, last.%d num.%d\n",i,np->nHeight,i,NPOINTS[i].nHeight,nHeight,last_NPOINTSi,NUM_NPOINTS);
flag = 1;
break;
}
np = &NPOINTS[i];
last_NPOINTSi = i;
}
}
}
if ( flag == 0 )
{
np = 0;
for (i=0; i<NUM_NPOINTS; i++)
{
if ( NPOINTS[i].nHeight >= nHeight )
{
//printf("i.%d np->ht %d [%d].ht %d >= nHeight.%d\n",i,np->nHeight,i,NPOINTS[i].nHeight,nHeight);
break;
}
np = &NPOINTS[i];
last_NPOINTSi = i;
}
}
}
if ( np != 0 )
{
if ( np->nHeight >= nHeight || (i < NUM_NPOINTS && np[1].nHeight < nHeight) )
fprintf(stderr,"warning: flag.%d i.%d np->ht %d [1].ht %d >= nHeight.%d\n",flag,i,np->nHeight,np[1].nHeight,nHeight);
*notarized_hashp = np->notarized_hash;
*notarized_desttxidp = np->notarized_desttxid;
return(np->notarized_height);
}
memset(notarized_hashp,0,sizeof(*notarized_hashp));
memset(notarized_desttxidp,0,sizeof(*notarized_desttxidp));
return(0);
}
void komodo_notarized_update(int32_t nHeight,int32_t notarized_height,uint256 notarized_hash,uint256 notarized_desttxid,uint256 MoM,int32_t MoMdepth)
{
static int didinit; static uint256 zero; static FILE *fp; CBlockIndex *pindex; struct notarized_checkpoint *np,N; long fpos;
if ( didinit == 0 )
{
char fname[512];int32_t latestht = 0;
//decode_hex(NOTARY_PUBKEY33,33,(char *)NOTARY_PUBKEY.c_str());
pthread_mutex_init(&komodo_mutex,NULL);
std::string suffix = Params().NetworkIDString() == "main" ? "" : "_" + Params().NetworkIDString();
std::string sep;
#ifdef _WIN32
sep = "\\";
#else
sep = "/";
#endif
sprintf(fname,"%s%snotarizations%s",GetDefaultDataDir().string().c_str(), sep.c_str(), suffix.c_str());
LogPrint("dpow","dpow: fname.(%s)\n",fname);
if ( (fp= fopen(fname,"rb+")) == 0 )
fp = fopen(fname,"wb+");
else
{
fpos = 0;
while ( fread(&N,1,sizeof(N),fp) == sizeof(N) )
{
//pindex = komodo_chainactive(N.notarized_height);
//if ( pindex != 0 && pindex->GetBlockHash() == N.notarized_hash && N.notarized_height > latestht )
if ( N.notarized_height > latestht )
{
NPOINTS = (struct notarized_checkpoint *)realloc(NPOINTS,(NUM_NPOINTS+1) * sizeof(*NPOINTS));
np = &NPOINTS[NUM_NPOINTS++];
*np = N;
latestht = np->notarized_height;
NOTARIZED_HEIGHT = np->notarized_height;
NOTARIZED_HASH = np->notarized_hash;
NOTARIZED_DESTTXID = np->notarized_desttxid;
NOTARIZED_MOM = np->MoM;
NOTARIZED_MOMDEPTH = np->MoMdepth;
fprintf(stderr,"%d ",np->notarized_height);
fpos = ftell(fp);
} //else fprintf(stderr,"%s error with notarization ht.%d %s\n",ASSETCHAINS_SYMBOL,N.notarized_height,pindex->GetBlockHash().ToString().c_str());
}
if ( ftell(fp) != fpos )
fseek(fp,fpos,SEEK_SET);
}
fprintf(stderr,"finished loading %s [%s]\n",fname,NOTARY_PUBKEY.c_str());
didinit = 1;
}
if ( notarized_height == 0 )
return;
if ( notarized_height >= nHeight )
{
fprintf(stderr,"komodo_notarized_update REJECT notarized_height %d > %d nHeight\n",notarized_height,nHeight);
return;
}
pindex = komodo_chainactive(notarized_height);
if ( pindex == 0 || pindex->GetBlockHash() != notarized_hash || notarized_height != pindex->nHeight )
{
fprintf(stderr,"komodo_notarized_update reject nHeight.%d notarized_height.%d:%d\n",nHeight,notarized_height,(int32_t)pindex->nHeight);
return;
}
//fprintf(stderr,"komodo_notarized_update nHeight.%d notarized_height.%d prev.%d\n",nHeight,notarized_height,NPOINTS!=0?NPOINTS[NUM_NPOINTS-1].notarized_height:-1);
portable_mutex_lock(&komodo_mutex);
NPOINTS = (struct notarized_checkpoint *)realloc(NPOINTS,(NUM_NPOINTS+1) * sizeof(*NPOINTS));
np = &NPOINTS[NUM_NPOINTS++];
memset(np,0,sizeof(*np));
np->nHeight = nHeight;
NOTARIZED_HEIGHT = np->notarized_height = notarized_height;
NOTARIZED_HASH = np->notarized_hash = notarized_hash;
NOTARIZED_DESTTXID = np->notarized_desttxid = notarized_desttxid;
if ( MoM != zero && MoMdepth > 0 )
{
NOTARIZED_MOM = np->MoM = MoM;
NOTARIZED_MOMDEPTH = np->MoMdepth = MoMdepth;
}
if ( fp != 0 )
{
if ( fwrite(np,1,sizeof(*np),fp) == sizeof(*np) )
fflush(fp);
else printf("error writing notarization to %d\n",(int32_t)ftell(fp));
}
// add to stored notarizations
portable_mutex_unlock(&komodo_mutex);
}
int32_t komodo_checkpoint(int32_t *notarized_heightp,int32_t nHeight,uint256 hash)
{
int32_t notarized_height; uint256 zero,notarized_hash,notarized_desttxid; CBlockIndex *notary; CBlockIndex *pindex;
memset(&zero,0,sizeof(zero));
//komodo_notarized_update(0,0,zero,zero,zero,0);
if ( (pindex= chainActive.Tip()) == 0 )
return(-1);
notarized_height = komodo_notarizeddata(pindex->nHeight,¬arized_hash,¬arized_desttxid);
*notarized_heightp = notarized_height;
if ( notarized_height >= 0 && notarized_height <= pindex->nHeight && (notary= mapBlockIndex[notarized_hash]) != 0 )
{
//printf("nHeight.%d -> (%d %s)\n",pindex->nHeight,notarized_height,notarized_hash.ToString().c_str());
if ( notary->nHeight == notarized_height ) // if notarized_hash not in chain, reorg
{
if ( nHeight < notarized_height )
{
fprintf(stderr,"nHeight.%d < NOTARIZED_HEIGHT.%d\n",nHeight,notarized_height);
return(-1);
}
else if ( nHeight == notarized_height && memcmp(&hash,¬arized_hash,sizeof(hash)) != 0 )
{
fprintf(stderr,"nHeight.%d == NOTARIZED_HEIGHT.%d, diff hash\n",nHeight,notarized_height);
return(-1);
}
} else fprintf(stderr,"unexpected error notary_hash %s ht.%d at ht.%d\n",notarized_hash.ToString().c_str(),notarized_height,notary->nHeight);
} else if ( notarized_height > 0 )
fprintf(stderr,"%s couldnt find notarized.(%s %d) ht.%d\n",ASSETCHAINS_SYMBOL,notarized_hash.ToString().c_str(),notarized_height,pindex->nHeight);
return(0);
}
void komodo_voutupdate(int32_t txi,int32_t vout,uint8_t *scriptbuf,int32_t scriptlen,int32_t height,int32_t *specialtxp,int32_t *notarizedheightp,uint64_t value,int32_t notarized,uint64_t signedmask)
{
static uint256 zero; static uint8_t crypto777[33];
int32_t MoMdepth,opretlen,len = 0; uint256 hash,desttxid,MoM;
if ( scriptlen == 35 && scriptbuf[0] == 33 && scriptbuf[34] == 0xac )
{
if ( crypto777[0] != 0x02 )// && crypto777[0] != 0x03 )
decode_hex(crypto777,33,(char *)CRYPTO777_PUBSECPSTR);
if ( memcmp(crypto777,scriptbuf+1,33) == 0 )
*specialtxp = 1;
}
if ( scriptbuf[len++] == 0x6a )
{
if ( (opretlen= scriptbuf[len++]) == 0x4c )
opretlen = scriptbuf[len++]; // len is 3 here
else if ( opretlen == 0x4d )
{
opretlen = scriptbuf[len++];
opretlen += (scriptbuf[len++] << 8);
}
//printf("opretlen.%d vout.%d [%s].(%s)\n",opretlen,vout,(char *)&scriptbuf[len+32*2+4],ASSETCHAINS_SYMBOL);
if ( vout == 1 && opretlen-3 >= 32*2+4 && strcmp(ASSETCHAINS_SYMBOL,(char *)&scriptbuf[len+32*2+4]) == 0 )
{
len += iguana_rwbignum(0,&scriptbuf[len],32,(uint8_t *)&hash);
len += iguana_rwnum(0,&scriptbuf[len],sizeof(*notarizedheightp),(uint8_t *)notarizedheightp);
len += iguana_rwbignum(0,&scriptbuf[len],32,(uint8_t *)&desttxid);