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SuperNET/iguana/main.c

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/******************************************************************************
* Copyright © 2014-2016 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. *
* *
******************************************************************************/
#define CHROMEAPP_NAME iguana
#define CHROMEAPP_STR "iguana"
#define CHROMEAPP_CONF "iguana.config"
#define CHROMEAPP_MAIN iguana_main
#define CHROMEAPP_JSON iguana_JSON
#define CHROMEAPP_HANDLER Handler_iguana
#include "../pnacl_main.h"
#include "iguana777.h"
#include "SuperNET.h"
#include "secp256k1/include/secp256k1.h"
#include "secp256k1/include/secp256k1_schnorr.h"
#include "secp256k1/include/secp256k1_rangeproof.h"
/*#undef fopen
#undef fclose
int32_t Fopen_count,Fclose_count;
FILE *myfopen(char *fname,char *mode)
{
FILE *fp;
if ( (fp= fopen(fname,mode)) != 0 )
{
Fopen_count++;
if ( Fopen_count > 2*Fclose_count )
printf("Fopens.%d vs Fcloses.%d [%d]\n",Fopen_count,Fclose_count,Fopen_count-Fclose_count);
return(fp);
}
return(0);
}
int32_t myfclose(FILE *fp)
{
Fclose_count++;
return(fclose(fp));
}*/
// ALL globals must be here!
char *Iguana_validcommands[] =
{
"inv2", "getdata2", "ConnectTo",
"version", "verack", "getaddr", "addr", "inv", "getdata", "notfound", "getblocks", "getheaders", "headers", "tx", "block", "mempool", "ping", "pong",
"reject", "filterload", "filteradd", "filterclear", "merkleblock", "alert", ""
};
int32_t Showmode,Autofold,PANGEA_MAXTHREADS = 1;
struct category_info *Categories;
struct iguana_info *Coins[IGUANA_MAXCOINS];
char Userhome[512];
int32_t USE_JAY,FIRST_EXTERNAL,IGUANA_disableNXT,Debuglevel,IGUANA_BIGENDIAN;
uint32_t prices777_NXTBLOCK,MAX_DEPTH = 100;
queue_t helperQ,jsonQ,finishedQ,bundlesQ,emitQ;
struct supernet_info MYINFO,**MYINFOS;
int32_t MAIN_initflag;
int32_t HDRnet,netBLOCKS;
cJSON *API_json;
#ifdef __PNACL__
char GLOBAL_TMPDIR[512] = "/DB/tmp";
char GLOBAL_DBDIR[512] = "/DB";
char GLOBAL_HELPDIR[512] = "/DB/help";
char GLOBAL_VALIDATEDIR[512] = "/DB/purgeable";
char GLOBAL_CONFSDIR[512] = "/DB/confs";
int32_t IGUANA_NUMHELPERS = 1;
#else
char GLOBAL_TMPDIR[512] = "tmp";
char GLOBAL_HELPDIR[512] = "help";
char GLOBAL_DBDIR[512] = "DB";
char GLOBAL_VALIDATEDIR[512] = "DB/purgeable";
char GLOBAL_CONFSDIR[512] = "confs";
#ifdef __linux
int32_t IGUANA_NUMHELPERS = 8;
#else
int32_t IGUANA_NUMHELPERS = 4;
#endif
#endif
struct iguana_jsonitem { struct queueitem DL; struct supernet_info *myinfo; uint32_t fallback,expired,allocsize; char *retjsonstr; char remoteaddr[64]; uint16_t port; char jsonstr[]; };
uint16_t SuperNET_API2num(char *agent,char *method)
{
int32_t i,n = 0; cJSON *item;
if ( agent != 0 && method != 0 && API_json != 0 && (n= cJSON_GetArraySize(API_json)) > 0 )
{
for (i=0; i<n; i++)
{
item = jitem(API_json,i);
if ( strcmp(agent,jstr(item,"agent")) == 0 && strcmp(method,jstr(item,"method")) == 0 )
return((i << 5) | (SUPERNET_APIVERSION & 0x1f));
}
}
return(-1);
}
int32_t SuperNET_num2API(char *agent,char *method,uint16_t num)
{
int32_t n,apiversion; cJSON *item;
if ( (apiversion= (num & 0x1f)) != SUPERNET_APIVERSION )
{
printf("need to make sure all released api help returns are indexed here!\n");
return(-1);
}
num >>= 5;
if ( API_json != 0 && (n= cJSON_GetArraySize(API_json)) > 0 && num < n )
{
item = jitem(API_json,num);
strcpy(agent,jstr(item,"agent"));
strcpy(method,jstr(item,"method"));
return(num);
}
return(-1);
}
int32_t SuperNET_str2hex(uint8_t *hex,char *str)
{
int32_t len;
len = (int32_t)strlen(str)+1;
decode_hex(hex,len,str);
return(len);
}
void SuperNET_hex2str(char *str,uint8_t *hex,int32_t len)
{
init_hexbytes_noT(str,hex,len);
}
struct supernet_info *SuperNET_MYINFO(char *passphrase)
{
if ( MYINFO.ctx == 0 )
{
MYINFO.ctx = secp256k1_context_create(SECP256K1_CONTEXT_SIGN | SECP256K1_CONTEXT_VERIFY);
secp256k1_pedersen_context_initialize(MYINFO.ctx);
secp256k1_rangeproof_context_initialize(MYINFO.ctx);
OS_randombytes(MYINFO.privkey.bytes,sizeof(MYINFO.privkey));
MYINFO.myaddr.pubkey = curve25519(MYINFO.privkey,curve25519_basepoint9());
printf("SuperNET_MYINFO: generate session keypair\n");
}
if ( passphrase == 0 || passphrase[0] == 0 )
return(&MYINFO);
else
{
// search saved accounts
}
return(&MYINFO);
return(0);
}
struct supernet_info *SuperNET_MYINFOfind(int32_t *nump,bits256 pubkey)
{
int32_t i;
*nump = 0;
if ( MYINFOS != 0 )
{
for (i=0; MYINFOS[i]!=0; i++)
{
*nump = i;
if ( bits256_cmp(pubkey,MYINFOS[i]->myaddr.persistent) == 0 )
return(MYINFOS[i]);
}
*nump = i;
}
return(0);
}
int32_t SuperNET_MYINFOS(struct supernet_info **myinfos,int32_t max)
{
int32_t i = 0;
if ( MYINFOS != 0 )
{
for (i=0; i<max; i++)
if ( (myinfos[i]= MYINFOS[i]) == 0 )
break;
}
return(i);
}
void SuperNET_MYINFOadd(struct supernet_info *myinfo)
{
int32_t num;
if ( SuperNET_MYINFOfind(&num,myinfo->myaddr.persistent) == 0 )
{
MYINFOS = realloc(MYINFOS,(num + 2) * sizeof(*MYINFOS));
char str[65]; printf("MYNFOadd[%d] <- %s\n",num,bits256_str(str,myinfo->myaddr.persistent));
MYINFOS[num] = calloc(1,sizeof(*myinfo));
*MYINFOS[num] = *myinfo;
MYINFOS[++num] = 0;
}
}
char *iguana_JSON(char *jsonstr,uint16_t port)
{
char *retstr=0; cJSON *json;
if ( (json= cJSON_Parse(jsonstr)) != 0 )
{
retstr = SuperNET_JSON(0,json,"127.0.0.1",port);
free_json(json);
}
if ( retstr == 0 )
retstr = clonestr("{\"error\":\"null return from iguana_JSON\"}");
return(retstr);
}
char *SuperNET_jsonstr(struct supernet_info *myinfo,char *jsonstr,char *remoteaddr,uint16_t port)
{
cJSON *json; char *agent,*method,*retstr = 0;
//char str[65]; printf("SuperNET_jsonstr %p %s\n",&myinfo->privkey,bits256_str(str,myinfo->privkey));
if ( (json= cJSON_Parse(jsonstr)) != 0 )
{
method = jstr(json,"method");
if ( (agent= jstr(json,"agent")) != 0 && method != 0 && jobj(json,"params") == 0 )
retstr = SuperNET_parser(myinfo,agent,method,json,remoteaddr);
else if ( method != 0 && is_bitcoinrpc(myinfo,method,remoteaddr) >= 0 )
retstr = iguana_bitcoinRPC(myinfo,method,json,remoteaddr,port);
else retstr = clonestr("{\"error\":\"need both agent and method\"}");
free_json(json);
} else retstr = clonestr("{\"error\":\"couldnt parse SuperNET_JSON\"}");
//printf("SuperNET_jsonstr ret.(%s)\n",retstr);
return(retstr);
}
int32_t iguana_jsonQ()
{
struct iguana_jsonitem *ptr; char *str;
if ( (ptr= queue_dequeue(&finishedQ,0)) != 0 )
{
if ( ptr->expired != 0 )
{
if ( (str= ptr->retjsonstr) != 0 )
{
ptr->retjsonstr = 0;
free(str);
}
printf("garbage collection: expired.(%s)\n",ptr->jsonstr);
myfree(ptr,ptr->allocsize);
} else queue_enqueue("finishedQ",&finishedQ,&ptr->DL,0);
}
if ( (ptr= queue_dequeue(&jsonQ,0)) != 0 )
{
if ( (ptr->retjsonstr= SuperNET_jsonstr(ptr->myinfo,ptr->jsonstr,ptr->remoteaddr,ptr->port)) == 0 )
ptr->retjsonstr = clonestr("{\"error\":\"null return from iguana_jsonstr\"}");
//printf("finished.(%s) -> (%s) %.0f\n",ptr->jsonstr,*ptr->retjsonstrp!=0?*ptr->retjsonstrp:"null return",OS_milliseconds());
queue_enqueue("finishedQ",&finishedQ,&ptr->DL,0);
return(1);
}
return(0);
}
char *iguana_blockingjsonstr(struct supernet_info *myinfo,char *jsonstr,uint64_t tag,int32_t maxmillis,char *remoteaddr,uint16_t port)
{
struct iguana_jsonitem *ptr; int32_t len,allocsize; double expiration;
expiration = OS_milliseconds() + maxmillis;
//printf("blocking case.(%s) %.0f maxmillis.%d\n",jsonstr,OS_milliseconds(),maxmillis);
len = (int32_t)strlen(jsonstr);
allocsize = sizeof(*ptr) + len + 1;
ptr = mycalloc('J',1,allocsize);
ptr->allocsize = allocsize;
ptr->myinfo = myinfo;
ptr->port = port;
ptr->retjsonstr = 0;
safecopy(ptr->remoteaddr,remoteaddr,sizeof(ptr->remoteaddr));
memcpy(ptr->jsonstr,jsonstr,len+1);
queue_enqueue("jsonQ",&jsonQ,&ptr->DL,0);
while ( OS_milliseconds() < expiration )
{
usleep(100);
if ( ptr->retjsonstr != 0 )
{
//printf("got blocking retjsonstr.(%s) delete allocsize.%d:%d\n",retjsonstr,allocsize,ptr->allocsize);
queue_delete(&finishedQ,&ptr->DL,ptr->allocsize,1);
return(ptr->retjsonstr);
}
usleep(1000);
}
//printf("(%s) expired\n",jsonstr);
ptr->expired = (uint32_t)time(NULL);
return(clonestr("{\"error\":\"iguana jsonstr expired\"}"));
}
char *SuperNET_processJSON(struct supernet_info *myinfo,cJSON *json,char *remoteaddr,uint16_t port)
{
cJSON *retjson; uint64_t tag; uint32_t timeout; char *jsonstr,*hexmsg,*method,*retjsonstr,*retstr = 0;
//char str[65]; printf("processJSON %p %s\n",&myinfo->privkey,bits256_str(str,myinfo->privkey));
if ( json != 0 )
{
if ( (tag= j64bits(json,"tag")) == 0 )
{
OS_randombytes((uint8_t *)&tag,sizeof(tag));
jadd64bits(json,"tag",tag);
}
if ( (timeout= juint(json,"timeout")) == 0 )
timeout = IGUANA_JSONTIMEOUT;
if ( (method= jstr(json,"method")) != 0 && strcmp(method,"DHT") == 0 && remoteaddr != 0 && (hexmsg= jstr(json,"hexmsg")) != 0 )
{
//printf("hexmsgprocess myinfo.%p\n",myinfo);
SuperNET_hexmsgprocess(myinfo,0,json,hexmsg,remoteaddr);
return(clonestr("{\"result\":\"processed remote DHT\"}"));
}
jsonstr = jprint(json,0);
//printf("RPC? (%s)\n",jsonstr);
if ( jstr(json,"immediate") != 0 || ((remoteaddr == 0 || remoteaddr[0] == 0) && port == IGUANA_RPCPORT) )
retjsonstr = SuperNET_jsonstr(myinfo,jsonstr,remoteaddr,port);
else retjsonstr = iguana_blockingjsonstr(myinfo,jsonstr,tag,timeout,remoteaddr,port);
if ( retjsonstr != 0 )
{
if ( (retjsonstr[0] == '{' || retjsonstr[0] == '[') && (retjson= cJSON_Parse(retjsonstr)) != 0 )
{
if ( is_cJSON_Array(retjson) == 0 )
{
if ( j64bits(retjson,"tag") != tag )
{
if ( jobj(retjson,"tag") != 0 )
jdelete(retjson,"tag");
jadd64bits(retjson,"tag",tag);
}
retstr = jprint(retjson,1);
free(retjsonstr);//,strlen(retjsonstr)+1);
//printf("retstr.(%s) retjsonstr.%p retjson.%p\n",retstr,retjsonstr,retjson);
} else retstr = retjsonstr;
} else retstr = retjsonstr;
}
free(jsonstr);
} else retstr = clonestr("{\"error\":\"cant parse JSON\"}");
if ( retstr == 0 )
retstr = clonestr("{\"error\":\"null return\"}");
//printf("processJSON.(%s)\n",retstr);
return(retstr);
}
void iguana_exit()
{
int32_t i,j,iter;
printf("start EXIT\n");
for (iter=0; iter<3; iter++)
{
if ( iter == 0 )
basilisk_request_goodbye(SuperNET_MYINFO(0));
else
{
for (i=0; i<IGUANA_MAXCOINS; i++)
{
if ( Coins[i] != 0 )
{
for (j=0; j<IGUANA_MAXPEERS; j++)
{
switch ( iter )
{
case 1: Coins[i]->peers.active[j].dead = (uint32_t)time(NULL); break;
case 2:
if ( Coins[i]->peers.active[j].usock >= 0 )
closesocket(Coins[i]->peers.active[j].usock);
break;
}
}
}
}
}
sleep(3);
}
printf("sockets closed, now EXIT\n");
exit(0);
}
#ifndef _WIN32
#include <signal.h>
void sigint_func() { printf("\nSIGINT\n"); iguana_exit(); }
void sigillegal_func() { printf("\nSIGILL\n"); iguana_exit(); }
void sighangup_func() { printf("\nSIGHUP\n"); iguana_exit(); }
void sigkill_func() { printf("\nSIGKILL\n"); iguana_exit(); }
void sigabort_func() { printf("\nSIGABRT\n"); iguana_exit(); }
void sigquit_func() { printf("\nSIGQUIT\n"); iguana_exit(); }
void sigchild_func() { printf("\nSIGCHLD\n"); signal(SIGCHLD,sigchild_func); }
void sigalarm_func() { printf("\nSIGALRM\n"); signal(SIGALRM,sigalarm_func); }
void sigcontinue_func() { printf("\nSIGCONT\n"); signal(SIGCONT,sigcontinue_func); }
#endif
void iguana_signalsinit()
{
#ifndef _WIN32
signal(SIGABRT,sigabort_func);
signal(SIGINT,sigint_func);
signal(SIGILL,sigillegal_func);
signal(SIGHUP,sighangup_func);
//signal(SIGKILL,sigkill_func);
signal(SIGQUIT,sigquit_func);
signal(SIGCHLD,sigchild_func);
signal(SIGALRM,sigalarm_func);
signal(SIGCONT,sigcontinue_func);
#endif
}
// mksquashfs DB/BTC BTC.squash -b 1048576 -> 19GB?
// mksquashfs DB/BTC BTC.lzo -comp lzo -b 1048576 -> takes a really long time -> 20GB
// mksquashfs DB/BTC BTC.xz -b 1048576 -comp xz -Xdict-size 512K -> takes a long time -> 16GB
// mksquashfs DB/BTC BTC.xz1m -b 1048576 -comp xz -Xdict-size 1024K -> takes a long time ->
/*
mksquashfs DB/BTC BTC.xz -comp xz
mksquashfs DB/BTC BTC.xzs -b 16384 -comp xz -Xdict-size 8K
mksquashfs DB/BTC BTC.xz1m -b 1048576 -comp xz -Xdict-size 1024K
mksquashfs DB/BTC BTC.xz8k -comp xz -Xdict-size 8K
mksquashfs DB/BTC BTC.lzo -comp lzo
mksquashfs DB/BTC BTC.lzo1m -comp lzo -b 1048576
mksquashfs DB/BTC BTC.squash
mksquashfs DB/BTC BTC.squash1M -b 1048576
rm BTC.xz; mksquashfs DB/BTC BTC.xz -comp xz -b 1048576 -comp xz -Xdict-size 1024K
sudo mount BTC.xz DB/ro/BTC -t squashfs -o loop
https://github.com/vasi/squashfuse
*/
void mainloop(struct supernet_info *myinfo)
{
int32_t i,j,n,flag,isRT,numpeers; struct iguana_info *coin; struct iguana_bundle *bp;
sleep(3);
printf("mainloop\n");
while ( 1 )
{
//printf("main iteration\n");
if ( myinfo->expiration != 0 && time(NULL) > myinfo->expiration )
iguana_walletlock(myinfo,0);
flag = 0;
isRT = 1;
numpeers = 0;
if ( 1 )
{
for (i=0; i<IGUANA_MAXCOINS; i++)
if ( (coin= Coins[i]) != 0 && coin->current != 0 )
{
if ( coin->active != 0 && coin->started != 0 )
{
isRT *= coin->isRT;
numpeers += coin->peers.numranked;
if ( time(NULL) > coin->startutc+10 && coin->spendvectorsaved == 0 && coin->blocks.hwmchain.height/coin->chain->bundlesize >= (coin->longestchain-coin->minconfirms)/coin->chain->bundlesize )
{
n = coin->bundlescount-1;
if ( iguana_emitfinished(coin,1) >= n )
{
if ( coin->PREFETCHLAG >= 0 && coin->fastfind == 0 )
{
for (j=0; j<n; j++)
iguana_alloctxbits(coin,&coin->bundles[j]->ramchain);
sleep(3);
}
if ( iguana_validated(coin) < n || iguana_utxofinished(coin) < n || iguana_balancefinished(coin) < n )
{
coin->spendvectorsaved = 1;
printf("update volatile data, need.%d vs utxo.%d balances.%d validated.%d\n",n,iguana_utxofinished(coin),iguana_balancefinished(coin),iguana_validated(coin));
}
else
{
coin->spendvectorsaved = (uint32_t)time(NULL);
//printf("already done UTXOGEN (%d %d) (%d %d)\n",iguana_utxofinished(coin),n,iguana_balancefinished(coin),n);
}
} //else printf("only emit.%d vs %d\n",iguana_emitfinished(coin),n);
}
if ( (bp= coin->current) != 0 && coin->stucktime != 0 && coin->isRT == 0 && coin->RTheight == 0 && (time(NULL) - coin->stucktime) > coin->MAXSTUCKTIME )
{
if ( 0 )
{
printf("%s is stuck too long, restarting due to %d\n",coin->symbol,bp->hdrsi);
if ( coin->started != 0 )
{
iguana_coinpurge(coin);
sleep(3);
while ( coin->started == 0 )
{
printf("wait for coin to reactivate\n");
sleep(1);
}
sleep(3);
}
}
}
if ( 0 && flag != 0 )
printf("call RT update busy.%d\n",coin->RTramchain_busy);
}
}
}
pangea_queues(SuperNET_MYINFO(0));
if ( flag == 0 )
usleep(10000 + isRT*100000 + (numpeers == 0)*1000000);
//iguana_jsonQ(); // cant do this here safely, need to send to coin specific queue
}
}
int32_t calcmofn(uint8_t *allshares,uint8_t *myshares[],uint8_t *sharenrs,int32_t M,uint8_t *data,int32_t datasize,int32_t N)
{
int32_t j;
calc_shares(allshares,(void *)data,datasize,datasize,M,N,sharenrs);
for (j=0; j<N; j++)
myshares[j] = &allshares[j * datasize];
return(datasize);
}
uint8_t *recoverdata(uint8_t *shares[],uint8_t *sharenrs,int32_t M,int32_t datasize,int32_t N)
{
void *G; int32_t i; uint8_t *recover,recovernrs[255];
if ( (recover= calloc(1,datasize)) == 0 )
{
printf("cards777_recover: unexpected out of memory error\n");
return(0);
}
memset(recovernrs,0,sizeof(recovernrs));
for (i=0; i<N; i++)
if ( shares[i] != 0 )
recovernrs[i] = sharenrs[i];
G = gfshare_ctx_init_dec(recovernrs,N,datasize);
for (i=0; i<N; i++)
if ( shares[i] != 0 )
gfshare_ctx_dec_giveshare(G,i,shares[i]);
gfshare_ctx_dec_newshares(G,recovernrs);
gfshare_ctx_dec_extract(G,recover);
gfshare_ctx_free(G);
return(recover);
}
static uint8_t logs[256] = {
0x00, 0x00, 0x01, 0x19, 0x02, 0x32, 0x1a, 0xc6,
0x03, 0xdf, 0x33, 0xee, 0x1b, 0x68, 0xc7, 0x4b,
0x04, 0x64, 0xe0, 0x0e, 0x34, 0x8d, 0xef, 0x81,
0x1c, 0xc1, 0x69, 0xf8, 0xc8, 0x08, 0x4c, 0x71,
0x05, 0x8a, 0x65, 0x2f, 0xe1, 0x24, 0x0f, 0x21,
0x35, 0x93, 0x8e, 0xda, 0xf0, 0x12, 0x82, 0x45,
0x1d, 0xb5, 0xc2, 0x7d, 0x6a, 0x27, 0xf9, 0xb9,
0xc9, 0x9a, 0x09, 0x78, 0x4d, 0xe4, 0x72, 0xa6,
0x06, 0xbf, 0x8b, 0x62, 0x66, 0xdd, 0x30, 0xfd,
0xe2, 0x98, 0x25, 0xb3, 0x10, 0x91, 0x22, 0x88,
0x36, 0xd0, 0x94, 0xce, 0x8f, 0x96, 0xdb, 0xbd,
0xf1, 0xd2, 0x13, 0x5c, 0x83, 0x38, 0x46, 0x40,
0x1e, 0x42, 0xb6, 0xa3, 0xc3, 0x48, 0x7e, 0x6e,
0x6b, 0x3a, 0x28, 0x54, 0xfa, 0x85, 0xba, 0x3d,
0xca, 0x5e, 0x9b, 0x9f, 0x0a, 0x15, 0x79, 0x2b,
0x4e, 0xd4, 0xe5, 0xac, 0x73, 0xf3, 0xa7, 0x57,
0x07, 0x70, 0xc0, 0xf7, 0x8c, 0x80, 0x63, 0x0d,
0x67, 0x4a, 0xde, 0xed, 0x31, 0xc5, 0xfe, 0x18,
0xe3, 0xa5, 0x99, 0x77, 0x26, 0xb8, 0xb4, 0x7c,
0x11, 0x44, 0x92, 0xd9, 0x23, 0x20, 0x89, 0x2e,
0x37, 0x3f, 0xd1, 0x5b, 0x95, 0xbc, 0xcf, 0xcd,
0x90, 0x87, 0x97, 0xb2, 0xdc, 0xfc, 0xbe, 0x61,
0xf2, 0x56, 0xd3, 0xab, 0x14, 0x2a, 0x5d, 0x9e,
0x84, 0x3c, 0x39, 0x53, 0x47, 0x6d, 0x41, 0xa2,
0x1f, 0x2d, 0x43, 0xd8, 0xb7, 0x7b, 0xa4, 0x76,
0xc4, 0x17, 0x49, 0xec, 0x7f, 0x0c, 0x6f, 0xf6,
0x6c, 0xa1, 0x3b, 0x52, 0x29, 0x9d, 0x55, 0xaa,
0xfb, 0x60, 0x86, 0xb1, 0xbb, 0xcc, 0x3e, 0x5a,
0xcb, 0x59, 0x5f, 0xb0, 0x9c, 0xa9, 0xa0, 0x51,
0x0b, 0xf5, 0x16, 0xeb, 0x7a, 0x75, 0x2c, 0xd7,
0x4f, 0xae, 0xd5, 0xe9, 0xe6, 0xe7, 0xad, 0xe8,
0x74, 0xd6, 0xf4, 0xea, 0xa8, 0x50, 0x58, 0xaf };
static uint8_t exps[510] = {
0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80,
0x1d, 0x3a, 0x74, 0xe8, 0xcd, 0x87, 0x13, 0x26,
0x4c, 0x98, 0x2d, 0x5a, 0xb4, 0x75, 0xea, 0xc9,
0x8f, 0x03, 0x06, 0x0c, 0x18, 0x30, 0x60, 0xc0,
0x9d, 0x27, 0x4e, 0x9c, 0x25, 0x4a, 0x94, 0x35,
0x6a, 0xd4, 0xb5, 0x77, 0xee, 0xc1, 0x9f, 0x23,
0x46, 0x8c, 0x05, 0x0a, 0x14, 0x28, 0x50, 0xa0,
0x5d, 0xba, 0x69, 0xd2, 0xb9, 0x6f, 0xde, 0xa1,
0x5f, 0xbe, 0x61, 0xc2, 0x99, 0x2f, 0x5e, 0xbc,
0x65, 0xca, 0x89, 0x0f, 0x1e, 0x3c, 0x78, 0xf0,
0xfd, 0xe7, 0xd3, 0xbb, 0x6b, 0xd6, 0xb1, 0x7f,
0xfe, 0xe1, 0xdf, 0xa3, 0x5b, 0xb6, 0x71, 0xe2,
0xd9, 0xaf, 0x43, 0x86, 0x11, 0x22, 0x44, 0x88,
0x0d, 0x1a, 0x34, 0x68, 0xd0, 0xbd, 0x67, 0xce,
0x81, 0x1f, 0x3e, 0x7c, 0xf8, 0xed, 0xc7, 0x93,
0x3b, 0x76, 0xec, 0xc5, 0x97, 0x33, 0x66, 0xcc,
0x85, 0x17, 0x2e, 0x5c, 0xb8, 0x6d, 0xda, 0xa9,
0x4f, 0x9e, 0x21, 0x42, 0x84, 0x15, 0x2a, 0x54,
0xa8, 0x4d, 0x9a, 0x29, 0x52, 0xa4, 0x55, 0xaa,
0x49, 0x92, 0x39, 0x72, 0xe4, 0xd5, 0xb7, 0x73,
0xe6, 0xd1, 0xbf, 0x63, 0xc6, 0x91, 0x3f, 0x7e,
0xfc, 0xe5, 0xd7, 0xb3, 0x7b, 0xf6, 0xf1, 0xff,
0xe3, 0xdb, 0xab, 0x4b, 0x96, 0x31, 0x62, 0xc4,
0x95, 0x37, 0x6e, 0xdc, 0xa5, 0x57, 0xae, 0x41,
0x82, 0x19, 0x32, 0x64, 0xc8, 0x8d, 0x07, 0x0e,
0x1c, 0x38, 0x70, 0xe0, 0xdd, 0xa7, 0x53, 0xa6,
0x51, 0xa2, 0x59, 0xb2, 0x79, 0xf2, 0xf9, 0xef,
0xc3, 0x9b, 0x2b, 0x56, 0xac, 0x45, 0x8a, 0x09,
0x12, 0x24, 0x48, 0x90, 0x3d, 0x7a, 0xf4, 0xf5,
0xf7, 0xf3, 0xfb, 0xeb, 0xcb, 0x8b, 0x0b, 0x16,
0x2c, 0x58, 0xb0, 0x7d, 0xfa, 0xe9, 0xcf, 0x83,
0x1b, 0x36, 0x6c, 0xd8, 0xad, 0x47, 0x8e, 0x01,
0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80, 0x1d,
0x3a, 0x74, 0xe8, 0xcd, 0x87, 0x13, 0x26, 0x4c,
0x98, 0x2d, 0x5a, 0xb4, 0x75, 0xea, 0xc9, 0x8f,
0x03, 0x06, 0x0c, 0x18, 0x30, 0x60, 0xc0, 0x9d,
0x27, 0x4e, 0x9c, 0x25, 0x4a, 0x94, 0x35, 0x6a,
0xd4, 0xb5, 0x77, 0xee, 0xc1, 0x9f, 0x23, 0x46,
0x8c, 0x05, 0x0a, 0x14, 0x28, 0x50, 0xa0, 0x5d,
0xba, 0x69, 0xd2, 0xb9, 0x6f, 0xde, 0xa1, 0x5f,
0xbe, 0x61, 0xc2, 0x99, 0x2f, 0x5e, 0xbc, 0x65,
0xca, 0x89, 0x0f, 0x1e, 0x3c, 0x78, 0xf0, 0xfd,
0xe7, 0xd3, 0xbb, 0x6b, 0xd6, 0xb1, 0x7f, 0xfe,
0xe1, 0xdf, 0xa3, 0x5b, 0xb6, 0x71, 0xe2, 0xd9,
0xaf, 0x43, 0x86, 0x11, 0x22, 0x44, 0x88, 0x0d,
0x1a, 0x34, 0x68, 0xd0, 0xbd, 0x67, 0xce, 0x81,
0x1f, 0x3e, 0x7c, 0xf8, 0xed, 0xc7, 0x93, 0x3b,
0x76, 0xec, 0xc5, 0x97, 0x33, 0x66, 0xcc, 0x85,
0x17, 0x2e, 0x5c, 0xb8, 0x6d, 0xda, 0xa9, 0x4f,
0x9e, 0x21, 0x42, 0x84, 0x15, 0x2a, 0x54, 0xa8,
0x4d, 0x9a, 0x29, 0x52, 0xa4, 0x55, 0xaa, 0x49,
0x92, 0x39, 0x72, 0xe4, 0xd5, 0xb7, 0x73, 0xe6,
0xd1, 0xbf, 0x63, 0xc6, 0x91, 0x3f, 0x7e, 0xfc,
0xe5, 0xd7, 0xb3, 0x7b, 0xf6, 0xf1, 0xff, 0xe3,
0xdb, 0xab, 0x4b, 0x96, 0x31, 0x62, 0xc4, 0x95,
0x37, 0x6e, 0xdc, 0xa5, 0x57, 0xae, 0x41, 0x82,
0x19, 0x32, 0x64, 0xc8, 0x8d, 0x07, 0x0e, 0x1c,
0x38, 0x70, 0xe0, 0xdd, 0xa7, 0x53, 0xa6, 0x51,
0xa2, 0x59, 0xb2, 0x79, 0xf2, 0xf9, 0xef, 0xc3,
0x9b, 0x2b, 0x56, 0xac, 0x45, 0x8a, 0x09, 0x12,
0x24, 0x48, 0x90, 0x3d, 0x7a, 0xf4, 0xf5, 0xf7,
0xf3, 0xfb, 0xeb, 0xcb, 0x8b, 0x0b, 0x16, 0x2c,
0x58, 0xb0, 0x7d, 0xfa, 0xe9, 0xcf, 0x83, 0x1b,
0x36, 0x6c, 0xd8, 0xad, 0x47, 0x8e };
/*
* This file is Copyright Daniel Silverstone <dsilvers@digital-scurf.org> 2006,2015
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation
* files (the "Software"), to deal in the Software without
* restriction, including without limitation the rights to use, copy,
* modify, merge, publish, distribute, sublicense, and/or sell copies
* of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
* HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*
*/
//#include "config.h"
//#include "libgfshare.h"
//#include "libgfshare_tables.h"
#ifndef LIBGFSHARE_H
#define LIBGFSHARE_H
typedef struct _gfshare_ctx gfshare_ctx;
typedef void (*gfshare_rand_func_t)(uint8_t*, unsigned int);
/* This will, use random(). It's not very good so you should not use it unless
* you must. If you can't be bothered to write your own, be sure to srandom()
* before you use any of the gfshare_ctx_enc_* functions
*/
extern const gfshare_rand_func_t gfshare_bad_idea_but_fill_rand_using_random;
/* This must be filled out before running any of the gfshare_ctx_enc_* calls
* or bad things will happen since it is initialised to NULL be default.
* You should fill this with a routine which uses urandom or similar ideally.
* If you cannot do that on your platform, you can use the function provided
* which does random() calls, but I recommend against it unless you must.
*/
extern gfshare_rand_func_t gfshare_fill_rand;
/* ------------------------------------------------------[ Preparation ]---- */
/* Initialise a gfshare context for producing shares */
gfshare_ctx* gfshare_ctx_init_enc(uint8_t* /* sharenrs */,unsigned int /* sharecount */, uint8_t /* threshold */,unsigned int /* size */);
/* Initialise a gfshare context for recombining shares */
gfshare_ctx* gfshare_ctx_init_dec(uint8_t* /* sharenrs */,unsigned int /* sharecount */,unsigned int /* size */);
/* Free a share context's memory. */
void gfshare_ctx_free(gfshare_ctx* /* ctx */);
/* --------------------------------------------------------[ Splitting ]---- */
/* Provide a secret to the encoder. (this re-scrambles the coefficients) */
void gfshare_ctx_enc_setsecret(gfshare_ctx* /* ctx */,uint8_t* /* secret */);
/* Extract a share from the context.
* 'share' must be preallocated and at least 'size' bytes long.
* 'sharenr' is the index into the 'sharenrs' array of the share you want.
*/
void gfshare_ctx_enc_getshare(gfshare_ctx* /* ctx */,uint8_t /* sharenr */,uint8_t* /* share */);
/* ----------------------------------------------------[ Recombination ]---- */
/* Inform a recombination context of a change in share indexes */
void gfshare_ctx_dec_newshares(gfshare_ctx* /* ctx */, uint8_t* /* sharenrs */);
/* Provide a share context with one of the shares.
* The 'sharenr' is the index into the 'sharenrs' array
*/
void gfshare_ctx_dec_giveshare(gfshare_ctx* /* ctx */,uint8_t /* sharenr */,uint8_t* /* share */);
/* Extract the secret by interpolation of the shares.
* secretbuf must be allocated and at least 'size' bytes long
*/
void gfshare_ctx_dec_extract(gfshare_ctx* /* ctx */,uint8_t* /* secretbuf */);
#endif /* LIBGFSHARE_H */
#include <errno.h>
#include <stdlib.h>
#include <string.h>
#define XMALLOC malloc
#define XFREE free
struct _gfshare_ctx {
unsigned int sharecount;
unsigned int threshold;
unsigned int size;
uint8_t* sharenrs;
uint8_t* buffer;
unsigned int buffersize;
};
static void _gfshare_fill_rand_using_random( uint8_t* buffer,unsigned int count )
{
OS_randombytes(buffer,count);
/*unsigned int i;
for( i = 0; i < count; ++i )
buffer[i] = (random() & 0xff00) >> 8; apparently the bottom 8 aren't
* very random but the middles ones
* are
*/
}
const gfshare_rand_func_t gfshare_bad_idea_but_fill_rand_using_random = (void *)_gfshare_fill_rand_using_random;
gfshare_rand_func_t gfshare_fill_rand = NULL;
/* ------------------------------------------------------[ Preparation ]---- */
static gfshare_ctx * _gfshare_ctx_init_core( uint8_t *sharenrs,unsigned int sharecount,uint8_t threshold,unsigned int size )
{
gfshare_ctx *ctx;
ctx = XMALLOC( sizeof(struct _gfshare_ctx) );
if( ctx == NULL )
return NULL; /* errno should still be set from XMALLOC() */
ctx->sharecount = sharecount;
ctx->threshold = threshold;
ctx->size = size;
ctx->sharenrs = XMALLOC( sharecount );
if( ctx->sharenrs == NULL ) {
int saved_errno = errno;
XFREE( ctx );
errno = saved_errno;
return NULL;
}
memcpy( ctx->sharenrs, sharenrs, sharecount );
ctx->buffersize = threshold * size;
ctx->buffer = XMALLOC( ctx->buffersize );
if( ctx->buffer == NULL ) {
int saved_errno = errno;
XFREE( ctx->sharenrs );
XFREE( ctx );
errno = saved_errno;
return NULL;
}
return ctx;
}
/* Initialise a gfshare context for producing shares */
gfshare_ctx * gfshare_ctx_init_enc( uint8_t* sharenrs,unsigned int sharecount,uint8_t threshold,unsigned int size )
{
unsigned int i;
for (i = 0; i < sharecount; i++) {
if (sharenrs[i] == 0) {
/* can't have x[i] = 0 - that would just be a copy of the secret, in
* theory (in fact, due to the way we use exp/log for multiplication and
* treat log(0) as 0, it ends up as a copy of x[i] = 1) */
errno = EINVAL;
return NULL;
}
}
return _gfshare_ctx_init_core( sharenrs, sharecount, threshold, size );
}
/* Initialise a gfshare context for recombining shares */
gfshare_ctx* gfshare_ctx_init_dec( uint8_t* sharenrs,unsigned int sharecount,unsigned int size )
{
gfshare_ctx *ctx = _gfshare_ctx_init_core( sharenrs, sharecount, sharecount, size );
if( ctx != NULL )
ctx->threshold = 0;
return ctx;
}
/* Free a share context's memory. */
void gfshare_ctx_free( gfshare_ctx* ctx )
{
gfshare_fill_rand( ctx->buffer, ctx->buffersize );
gfshare_fill_rand( ctx->sharenrs, ctx->sharecount );
XFREE( ctx->sharenrs );
XFREE( ctx->buffer );
gfshare_fill_rand( (uint8_t*)ctx, sizeof(struct _gfshare_ctx) );
XFREE( ctx );
}
/* --------------------------------------------------------[ Splitting ]---- */
/* Provide a secret to the encoder. (this re-scrambles the coefficients) */
void gfshare_ctx_enc_setsecret( gfshare_ctx* ctx,uint8_t* secret)
{
memcpy( ctx->buffer + ((ctx->threshold-1) * ctx->size),
secret,
ctx->size );
gfshare_fill_rand( ctx->buffer, (ctx->threshold-1) * ctx->size );
}
/* Extract a share from the context.
* 'share' must be preallocated and at least 'size' bytes long.
* 'sharenr' is the index into the 'sharenrs' array of the share you want.
*/
void gfshare_ctx_enc_getshare( gfshare_ctx* ctx,uint8_t sharenr,uint8_t* share)
{
unsigned int pos, coefficient;
unsigned int ilog = logs[ctx->sharenrs[sharenr]];
uint8_t *coefficient_ptr = ctx->buffer;
uint8_t *share_ptr;
for( pos = 0; pos < ctx->size; ++pos )
share[pos] = *(coefficient_ptr++);
for( coefficient = 1; coefficient < ctx->threshold; ++coefficient ) {
share_ptr = share;
for( pos = 0; pos < ctx->size; ++pos ) {
uint8_t share_byte = *share_ptr;
if( share_byte )
share_byte = exps[ilog + logs[share_byte]];
*share_ptr++ = share_byte ^ *coefficient_ptr++;
}
}
}
/* ----------------------------------------------------[ Recombination ]---- */
/* Inform a recombination context of a change in share indexes */
void gfshare_ctx_dec_newshares( gfshare_ctx* ctx,uint8_t* sharenrs)
{
memcpy( ctx->sharenrs, sharenrs, ctx->sharecount );
}
/* Provide a share context with one of the shares.
* The 'sharenr' is the index into the 'sharenrs' array
*/
void gfshare_ctx_dec_giveshare( gfshare_ctx* ctx,uint8_t sharenr,uint8_t* share )
{
memcpy( ctx->buffer + (sharenr * ctx->size), share, ctx->size );
}
/* Extract the secret by interpolation of the shares.
* secretbuf must be allocated and at least 'size' bytes long
*/
void gfshare_ctx_dec_extract( gfshare_ctx* ctx,uint8_t* secretbuf )
{
unsigned int i, j;
uint8_t *secret_ptr, *share_ptr, sharei,sharej;
for( i = 0; i < ctx->size; ++i )
secretbuf[i] = 0;
for( i = 0; i < ctx->sharecount; ++i )
{
// Compute L(i) as per Lagrange Interpolation
unsigned Li_top = 0, Li_bottom = 0;
if ( (sharei= ctx->sharenrs[i]) != 0 )
{
for ( j = 0; j < ctx->sharecount; ++j )
{
if ( i != j && sharei != (sharej= ctx->sharenrs[j]) )
{
if ( sharej == 0 )
continue; // skip empty share */
Li_top += logs[sharej];
if ( Li_top >= 0xff )
Li_top -= 0xff;
Li_bottom += logs[sharei ^ sharej];
if ( Li_bottom >= 0xff )
Li_bottom -= 0xff;
}
}
if ( Li_bottom > Li_top )
Li_top += 0xff;
Li_top -= Li_bottom; // Li_top is now log(L(i))
secret_ptr = secretbuf, share_ptr = ctx->buffer + (ctx->size * i);
for (j=0; j<ctx->size; j++)
{
if ( *share_ptr != 0 )
*secret_ptr ^= exps[Li_top + logs[*share_ptr]];
share_ptr++, secret_ptr++;
}
}
}
}
void calc_share(uint8_t *buffer,int32_t size,int32_t M,uint32_t ilog,uint8_t *share)
{
uint32_t pos,coefficient;//,ilog = ctx_logs[ctx->sharenrs[sharenr]];
//uint8_t *coefficient_ptr = buffer;
uint8_t *share_ptr,share_byte;
for (pos=0; pos<size; pos++)
share[pos] = *(buffer++);
for (coefficient=1; coefficient<M; coefficient++)
{
share_ptr = share;
for (pos=0; pos<size; pos++)
{
share_byte = *share_ptr;
if ( share_byte != 0 )
share_byte = exps[ilog + logs[share_byte]];
*share_ptr++ = (share_byte ^ *buffer++);
}
}
}
void calc_shares(uint8_t *shares,uint8_t *secret,int32_t size,int32_t width,int32_t M,int32_t N,uint8_t *sharenrs)
{
int32_t i;
uint8_t *buffer = calloc(M,width);
memset(shares,0,N*width);
memcpy(buffer + ((M - 1) * size),secret,size);
//gfshare_fill_rand(buffer,(M - 1) * size);
OS_randombytes(buffer,(M - 1) * size);
for (i=0; i<N; i++)
{
//uint32_t _crc32(uint32_t crc, const void *buf, size_t size);
calc_share(buffer,size,M,logs[sharenrs[i]],&shares[i * width]);
printf("(%02x %08x) ",sharenrs[i],calc_crc32(0,&shares[i*width],size));
}
free(buffer);
}
//#include <stdio.h>
int32_t test(int32_t M,int32_t N,int32_t datasize)
{
int ok = 1, i;
uint8_t * secret = malloc(datasize);
uint8_t *shares[255];
uint8_t *recomb = malloc(datasize);
uint8_t sharenrs[255],newsharenrs[255];// = (uint8_t *)strdup("0124z89abehtr");
gfshare_ctx *G;
gfshare_fill_rand = gfshare_bad_idea_but_fill_rand_using_random;
for (i=0; i<N; i++)
{
sharenrs[i] = i+1;
shares[i] = malloc(datasize);
}
/* Stage 1, make a secret */
for( i = 0; i < datasize; ++i )
secret[i] = (rand() & 0xff00) >> 8;
/* Stage 2, split it N ways with a threshold of M */
G = gfshare_ctx_init_enc( sharenrs, N, M, datasize );
gfshare_ctx_enc_setsecret( G, secret );
for (i=0; i<N; i++)
gfshare_ctx_enc_getshare( G, i, shares[i] );
gfshare_ctx_free( G );
/* Prep the decode shape */
G = gfshare_ctx_init_dec( sharenrs, N, datasize );
memset(newsharenrs,0,N);
int32_t j,r;
for (i=0; i<M; i++)
{
r = rand() % N;
while ( (j= sharenrs[r]) == 0 || newsharenrs[r] != 0 )
r = rand() % N;
newsharenrs[r] = j;
sharenrs[r] = 0;
}
for (i=0; i<N; i++)
{
if ( newsharenrs[i] != 0 )
gfshare_ctx_dec_giveshare( G, i, shares[i] );
//newsharenrs[i] = sharenrs[i];
}
/* Stage 3, attempt a recombination with shares 1 and 2 */
//sharenrs[2] = 0;
gfshare_ctx_dec_newshares( G, newsharenrs );
gfshare_ctx_dec_extract( G, recomb );
for( i = 0; i < datasize; ++i )
if( secret[i] != recomb[i] )
ok = 0;
printf("M.%-3d N.%-3d ok.%d datalen.%d\n",M,N,ok,datasize);
free(recomb), free(secret);
for (i=0; i<N; i++)
free(shares[i]);
return ok!=1;
}
int32_t init_sharenrs(uint8_t sharenrs[255],uint8_t *orig,int32_t m,int32_t n)
{
uint8_t *randvals,valid[255];
int32_t i,j,r,remains,orign;
if ( m > n || n >= 0xff ) // reserve 255 for illegal sharei
{
printf("illegal M.%d of N.%d\n",m,n);
return(-1);
}
randvals = calloc(1,65536);
OS_randombytes(randvals,65536);
if ( orig == 0 && n == m )
{
memset(sharenrs,0,n);
for (i=0; i<255; i++)
valid[i] = (i + 1);
remains = orign = 255;
for (i=0; i<n; i++)
{
r = (randvals[i] % remains);
sharenrs[i] = valid[r];
printf("%d ",sharenrs[i]);
valid[r] = valid[--remains];
}
printf("FULL SET\n");
}
else
{
memcpy(valid,orig,n);
memset(sharenrs,0,n);
for (i=0; i<n; i++)
printf("%d ",valid[i]);
printf("valid\n");
for (i=0; i<m; i++)
{
r = rand() % n;
while ( (j= valid[r]) == 0 )
{
//printf("i.%d j.%d m.%d n.%d r.%d\n",i,j,m,n,r);
r = rand() % n;
}
sharenrs[i] = j;
valid[r] = 0;
}
for (i=0; i<n; i++)
printf("%d ",valid[i]);
printf("valid\n");
for (i=0; i<m; i++)
printf("%d ",sharenrs[i]);
printf("sharenrs vals m.%d of n.%d\n",m,n);
//getchar();
}
free(randvals);
for (i=0; i<m; i++)
{
for (j=0; j<m; j++)
{
if ( i == j )
continue;
if ( sharenrs[i] != 0 && sharenrs[i] == sharenrs[j] )
{
printf("FATAL: duplicate entry sharenrs[%d] %d vs %d sharenrs[%d]\n",i,sharenrs[i],sharenrs[j],j);
return(-1);
}
}
}
return(0);
}
/* Construct and write out the tables for the gfshare code */
int maingen(int argc, char** argv)
{
uint8_t logs[256];
uint8_t exps[255];
unsigned int x;
unsigned int i;
x = 1;
for( i = 0; i < 255; ++i ) {
exps[i] = x;
logs[x] = i;
x <<= 1;
if( x & 0x100 )
x ^= 0x11d; /* Unset the 8th bit and mix in 0x1d */
}
logs[0] = 0; /* can't log(0) so just set it neatly to 0 */
/* The above generation algorithm clearly demonstrates that
* logs[exps[i]] == i for 0 <= i <= 254
* exps[logs[i]] == i for 1 <= i <= 255
*/
/* Spew out the tables */
fprintf(stdout, "\
/*\n\
* This file is autogenerated by gfshare_maketable.\n\
*/\n\
\n\
static uint8_t logs[256] = {\n ");
for( i = 0; i < 256; ++i ) {
fprintf(stdout, "0x%02x", logs[i]);
if( i == 255 )
fprintf(stdout, " };\n");
else if( (i % 8) == 7 )
fprintf(stdout, ",\n ");
else
fprintf(stdout, ", ");
}
/* The exp table we output from 0 to 509 because that way when we
* do the lagrange interpolation we don't have to be quite so strict
* with staying inside the field which makes it quicker
*/
fprintf(stdout, "\
\n\
static uint8_t exps[510] = {\n ");
for( i = 0; i < 510; ++i ) {
fprintf(stdout, "0x%02x", exps[i % 255]); /* exps[255]==exps[0] */
if( i == 509 )
fprintf(stdout, " };\n");
else if( (i % 8) == 7)
fprintf(stdout, ",\n ");
else
fprintf(stdout, ", ");
}
return 0;
}
void iguana_appletests(struct supernet_info *myinfo)
{
char *str;
//iguana_chaingenesis(1,1403138561,0x1e0fffff,8359109,bits256_conv("fd1751cc6963d88feca94c0d01da8883852647a37a0a67ce254d62dd8c9d5b2b")); // BTCD
if ( 0 )
{
char genesisblock[1024];
//iguana_chaingenesis("VPN",0,bits256_conv("00000ac7d764e7119da60d3c832b1d4458da9bc9ef9d5dd0d91a15f690a46d99"),genesisblock,"scrypt",1,1409839200,0x1e0fffff,64881664,bits256_conv("698a93a1cacd495a7a4fb3864ad8d06ed4421dedbc57f9aaad733ea53b1b5828")); // VPN
iguana_chaingenesis("LTC",0,bits256_conv("12a765e31ffd4059bada1e25190f6e98c99d9714d334efa41a195a7e7e04bfe2"),genesisblock,"sha256",1,1317972665,0x1e0ffff0,2084524493,bits256_conv("97ddfbbae6be97fd6cdf3e7ca13232a3afff2353e29badfab7f73011edd4ced9")); // LTC
//char *Str = "01000000f615f7ce3b4fc6b8f61e8f89aedb1d0852507650533a9e3b10b9bbcc30639f279fcaa86746e1ef52d3edb3c4ad8259920d509bd073605c9bf1d59983752a6b06b817bb4ea78e011d012d59d4";
// https://litecoin.info/Scrypt 0000000110c8357966576df46f3b802ca897deb7ad18b12f1c24ecff6386ebd9
//uint8_t buf[1000]; bits256 shash,hash2; char str[65],str2[65];
//decode_hex(buf,(int32_t)strlen(Str)>>1,Str);
//calc_scrypthash(shash.uints,buf);
//blockhash_sha256(&hash2,buf,80);
//printf("shash -> %s sha256x2 %s\n",bits256_str(str,shash),bits256_str(str2,hash2));
getchar();
}
if ( 1 )
{
/*int32_t i; ;bits256 hash2; uint8_t pubkey[33];
double startmillis = OS_milliseconds();
for (i=0; i<1000; i++)
hash2 = curve25519_shared(hash2,rand256(0));
printf("curve25519 elapsed %.3f for %d iterations\n",OS_milliseconds() - startmillis,i);
startmillis = OS_milliseconds();
bitcoin_pubkey33(myinfo->ctx,pubkey,hash2);
for (i=0; i<1000; i++)
bitcoin_sharedsecret(myinfo->ctx,hash2,pubkey,33);
printf("secp256k1 elapsed %.3f for %d iterations\n",OS_milliseconds() - startmillis,i);
getchar();**/
if ( 1 && (str= SuperNET_JSON(myinfo,cJSON_Parse("{\"protover\":70002,\"RELAY\":0,\"VALIDATE\":0,\"portp2p\":14631,\"agent\":\"iguana\",\"method\":\"addcoin\",\"startpend\":4,\"endpend\":4,\"services\":128,\"maxpeers\":128,\"newcoin\":\"BTCD\",\"active\":1,\"numhelpers\":4,\"poll\":100}"),0,myinfo->rpcport)) != 0 )
{
free(str);
if ( 1 && (str= SuperNET_JSON(myinfo,cJSON_Parse("{\"portp2p\":8333,\"RELAY\":0,\"VALIDATE\":0,\"agent\":\"iguana\",\"method\":\"addcoin\",\"startpend\":1,\"endpend\":1,\"services\":128,\"maxpeers\":64,\"newcoin\":\"BTC\",\"active\":0,\"numhelpers\":4,\"poll\":100}"),0,myinfo->rpcport)) != 0 )
{
free(str);
if ( 0 && (str= SuperNET_JSON(myinfo,cJSON_Parse("{\"agent\":\"SuperNET\",\"method\":\"login\",\"handle\":\"alice\",\"password\":\"alice\",\"passphrase\":\"alice\"}"),0,myinfo->rpcport)) != 0 )
{
free(str);
if ( (str= SuperNET_JSON(myinfo,cJSON_Parse("{\"agent\":\"SuperNET\",\"method\":\"login\",\"handle\":\"bob\",\"password\":\"bob\",\"passphrase\":\"bob\"}"),0,myinfo->rpcport)) != 0 )
free(str);
}
}
}
sleep(1);
}
}
void iguana_commandline(struct supernet_info *myinfo,char *arg)
{
cJSON *argjson,*array; char *coinargs,*argstr,*str; int32_t i,n; long filesize = 0;
if ( arg == 0 )
arg = "iguana.conf";
if ( arg != 0 )
{
if ( arg[0] == '{' || arg[0] == '[' )
argstr = arg;
else argstr = OS_filestr(&filesize,arg);
if ( (argjson= cJSON_Parse(argstr)) != 0 )
{
IGUANA_NUMHELPERS = juint(argjson,"numhelpers");
if ( (myinfo->rpcport= juint(argjson,"port")) == 0 )
myinfo->rpcport = IGUANA_RPCPORT;
if ( (myinfo->publicRPC= juint(argjson,"publicRPC")) != 0 && myinfo->publicRPC != myinfo->rpcport )
myinfo->publicRPC = 0;
if ( jstr(argjson,"rpccoin") != 0 )
safecopy(myinfo->rpcsymbol,jstr(argjson,"rpccoin"),sizeof(myinfo->rpcsymbol));
safecopy(Userhome,jstr(argjson,"userhome"),sizeof(Userhome));
if ( jstr(argjson,"tmpdir") != 0 )
{
safecopy(GLOBAL_TMPDIR,jstr(argjson,"tmpdir"),sizeof(GLOBAL_TMPDIR));
printf("GLOBAL tmpdir.(%s)\n",GLOBAL_TMPDIR);
}
printf("call argv JSON.(%s)\n",(char *)arg);
SuperNET_JSON(myinfo,argjson,0,myinfo->rpcport);
if ( (coinargs= SuperNET_keysinit(myinfo,arg)) != 0 )
iguana_launch(0,"iguana_coins",iguana_coins,coinargs,IGUANA_PERMTHREAD);
if ( (array= jarray(&n,argjson,"commands")) != 0 )
{
for (i=0; i<n; i++)
if ( (str= SuperNET_JSON(myinfo,jitem(array,i),0,myinfo->rpcport)) != 0 )
free(str);
}
free_json(argjson);
} else printf("error parsing.(%s)\n",(char *)argstr);
if ( argstr != arg )
free(argstr);
}
}
void iguana_ensuredirs()
{
char dirname[512];
sprintf(dirname,"%s",GLOBAL_HELPDIR), OS_ensure_directory(dirname);
sprintf(dirname,"%s",GLOBAL_CONFSDIR), OS_ensure_directory(dirname);
sprintf(dirname,"%s",GLOBAL_DBDIR), OS_ensure_directory(dirname);
sprintf(dirname,"%s/purgeable",GLOBAL_DBDIR), OS_ensure_directory(dirname);
sprintf(dirname,"%s",GLOBAL_TMPDIR), OS_ensure_directory(dirname);
sprintf(dirname,"%s",GLOBAL_VALIDATEDIR), OS_ensure_directory(dirname);
sprintf(dirname,"%s/ECB",GLOBAL_DBDIR), OS_ensure_directory(dirname);
sprintf(dirname,"%s/BTC",GLOBAL_VALIDATEDIR), OS_ensure_directory(dirname);
sprintf(dirname,"%s/BTCD",GLOBAL_VALIDATEDIR), OS_ensure_directory(dirname);
}
void iguana_Qinit()
{
iguana_initQ(&helperQ,"helperQ");
iguana_initQ(&jsonQ,"jsonQ");
iguana_initQ(&finishedQ,"finishedQ");
iguana_initQ(&bundlesQ,"bundlesQ");
iguana_initQ(&emitQ,"emitQ");
iguana_initQ(&TerminateQ,"TerminateQ");
}
void iguana_helpinit(struct supernet_info *myinfo)
{
char *tmpstr = 0;
if ( (tmpstr= SuperNET_JSON(myinfo,cJSON_Parse("{\"agent\":\"SuperNET\",\"method\":\"help\"}"),0,myinfo->rpcport)) != 0 )
{
if ( (API_json= cJSON_Parse(tmpstr)) != 0 && (API_json= jobj(API_json,"result")) != 0 )
API_json = jobj(API_json,"API");
else printf("couldnt parse tmpstr\n");
free(tmpstr);
}
printf("generated API_json tmpstr.%p\n",tmpstr);
}
void iguana_urlinit(struct supernet_info *myinfo,int32_t ismainnet,int32_t usessl)
{
int32_t iter,j; FILE *fp; char line[4096],NXTaddr[64]; uint8_t pubkey[32];
strcpy(myinfo->NXTAPIURL,"http://127.0.0.1:7876/nxt");
for (iter=0; iter<2; iter++)
{
if ( (fp= fopen(iter == 0 ? "nxtpasswords" : "fimpasswords","rb")) != 0 )
{
while ( fgets(line,sizeof(line),fp) > 0 )
{
j = (int32_t)strlen(line) - 1;
line[j] = 0;
calc_NXTaddr(NXTaddr,pubkey,(uint8_t *)line,j);
printf("FORGING %s (%s)\n",NXTaddr,issue_startForging(myinfo,line));
}
fclose(fp);
}
strcpy(myinfo->NXTAPIURL,"http://127.0.0.1:7886/nxt");
}
if ( usessl == 0 )
strcpy(myinfo->NXTAPIURL,"http://127.0.0.1:");
else strcpy(myinfo->NXTAPIURL,"https://127.0.0.1:");
if ( ismainnet != 0 )
strcat(myinfo->NXTAPIURL,"7876/nxt");
else strcat(myinfo->NXTAPIURL,"6876/nxt");
}
void iguana_launchdaemons(struct supernet_info *myinfo)
{
int32_t i; char *helperargs,helperstr[512];
if ( IGUANA_NUMHELPERS == 0 )
IGUANA_NUMHELPERS = 1;
for (i=0; i<IGUANA_NUMHELPERS; i++)
{
sprintf(helperstr,"{\"helperid\":%d}",i);
helperargs = clonestr(helperstr);
printf("launch[%d] of %d (%s)\n",i,IGUANA_NUMHELPERS,helperstr);
iguana_launch(0,"iguana_helper",iguana_helper,helperargs,IGUANA_PERMTHREAD);
}
iguana_launch(0,"rpcloop",iguana_rpcloop,myinfo,IGUANA_PERMTHREAD);
printf("launch mainloop\n");
mainloop(myinfo);
}
int32_t iguana_isbigendian()
{
int32_t i,littleendian,bigendian; uint64_t val = 0x0001020304050607;
for (i=bigendian=littleendian=0; i<sizeof(val); i++)
{
if ( ((uint8_t *)&val)[i] == i )
bigendian++;
else if ( ((uint8_t *)&val)[sizeof(val)-1-i] == i )
littleendian++;
}
if ( littleendian == sizeof(val) )
return(0);
else if ( bigendian == sizeof(val) )
return(1);
else return(-1);
}
void iguana_main(void *arg)
{
int32_t usessl = 0, ismainnet = 1; struct supernet_info *myinfo; cJSON *argjson = 0;
if ( (IGUANA_BIGENDIAN= iguana_isbigendian()) > 0 )
printf("BIGENDIAN\n");
else if ( IGUANA_BIGENDIAN == 0 )
printf("LITTLE ENDIAN arg.%p\n",arg);
else printf("ENDIAN ERROR\n");
mycalloc(0,0,0);
if ( 0 )
iguana_signalsinit();
iguana_ensuredirs();
iguana_Qinit();
myinfo = SuperNET_MYINFO(0);
myinfo->rpcport = IGUANA_RPCPORT;
strcpy(myinfo->rpcsymbol,"BTCD");
iguana_urlinit(myinfo,ismainnet,usessl);
category_init(myinfo);
exchange_create("bitcoin",0);
argjson = arg != 0 ? cJSON_Parse(arg) : cJSON_Parse("{}");
//iguana_coinadd("BTC",argjson); dont do this here, coin args not set
///iguana_coinadd("LTC",argjson);
free_json(argjson);
iguana_helpinit(myinfo);
iguana_commandline(myinfo,arg);
#ifdef __APPLE__
iguana_appletests(myinfo);
#endif
iguana_launchdaemons(myinfo);
}