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/******************************************************************************
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* Copyright © 2014-2016 The SuperNET Developers. *
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* *
* 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. *
* *
******************************************************************************/
#include "iguana777.h"
struct iguana_accept { struct queueitem DL; char ipaddr[64]; uint32_t ipbits; int32_t sock; uint16_t port; };
int32_t iguana_acceptspoll(uint8_t *buf,int32_t bufsize,struct iguana_accept *accepts,int32_t num,int32_t timeout)
{
struct pollfd fds[IGUANA_MAXPEERS]; int32_t i,j,n,r,nonz,flag; struct iguana_accept *ptr;
if ( num == 0 )
return(0);;
memset(fds,0,sizeof(fds));
flag = 0;
r = (rand() % num);
for (j=n=nonz=0; j<num&&j<sizeof(fds)/sizeof(*fds)-1; j++)
{
i = (j + r) % num;
ptr = &accepts[i];
fds[i].fd = -1;
if ( ptr->sock >= 0 )
{
fds[i].fd = ptr->sock;
fds[i].events = (POLLIN | POLLOUT);
nonz++;
}
}
if ( nonz != 0 && poll(fds,num,timeout) > 0 )
{
for (j=0; j<num; j++)
{
i = (j + r) % num;
ptr = &accepts[i];
if ( ptr->sock < 0 )
continue;
if ( (fds[i].revents & POLLIN) != 0 )
{
//return(iguana_recvmsg(ptr->ipaddr,ptr->sock,buf,bufsize));
}
if ( (fds[i].revents & POLLOUT) != 0 )
{
//if ( iguana_pollsendQ(coin,addr) == 0 )
// flag += iguana_poll(coin,addr);
//else flag++;
}
}
}
return(0);
}
void iguana_acceptloop(void *args)
{
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struct iguana_peer *addr; struct iguana_info *coin = args;
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struct pollfd pfd; int32_t sock; struct iguana_accept *ptr; uint16_t port = coin->chain->portp2p;
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socklen_t clilen; struct sockaddr_in cli_addr; char ipaddr[64]; uint32_t i,ipbits;
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while ( (coin->bindsock= iguana_socket(1,"0.0.0.0",port)) < 0 )
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{
if ( coin->peers.localaddr != 0 )
{
printf("another daemon running, no need to have iguana accept connections\n");
return;
}
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if ( port != IGUANA_RPCPORT )
return;
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sleep(5);
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}
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printf(">>>>>>>>>>>>>>>> iguana_bindloop 127.0.0.1:%d bind sock.%d\n",port,coin->bindsock);
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printf("START ACCEPTING\n");
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while ( coin->bindsock >= 0 )
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{
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memset(&pfd,0,sizeof(pfd));
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pfd.fd = coin->bindsock;
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pfd.events = POLLIN;
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if ( poll(&pfd,1,100) <= 0 )
continue;
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clilen = sizeof(cli_addr);
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//printf("ACCEPT (%s:%d) on sock.%d\n","127.0.0.1",coin->chain->portp2p,coin->bindsock);
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sock = accept(coin->bindsock,(struct sockaddr *)&cli_addr,&clilen);
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if ( sock < 0 )
{
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printf("ERROR on accept bindsock.%d errno.%d (%s)\n",coin->bindsock,errno,strerror(errno));
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continue;
}
memcpy(&ipbits,&cli_addr.sin_addr.s_addr,sizeof(ipbits));
expand_ipbits(ipaddr,ipbits);
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for (i=0; i<IGUANA_MAXPEERS; i++)
{
if ( coin->peers.active[i].ipbits == (uint32_t)ipbits && coin->peers.active[i].usock >= 0 )
{
printf("found existing peer.(%s) in slot[%d]\n",ipaddr,i);
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close(sock);
sock = -1;
//iguana_iAkill(coin,&coin->peers.active[i],0);
//sleep(1);
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break;
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}
}
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if ( sock < 0 )
continue;
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printf("NEWSOCK.%d for %x (%s)\n",sock,ipbits,ipaddr);
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/*if ( (uint32_t)ipbits == myinfo->myaddr.myipbits )
{
}*/
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if ( (addr= iguana_peerslot(coin,ipbits,0)) == 0 )
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{
ptr = mycalloc('a',1,sizeof(*ptr));
strcpy(ptr->ipaddr,ipaddr);
ptr->ipbits = ipbits;
ptr->sock = sock;
ptr->port = coin->chain->portp2p;
printf("queue PENDING ACCEPTS\n");
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queue_enqueue("acceptQ",&coin->acceptQ,&ptr->DL,0);
}
else
{
printf("LAUNCH DEDICATED THREAD for %s\n",ipaddr);
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addr->usock = sock;
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addr->dead = 0;
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strcpy(addr->symbol,coin->symbol);
iguana_launch(coin,"accept",iguana_dedicatedglue,addr,IGUANA_CONNTHREAD);
//iguana_dedicatedloop(coin,addr);
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}
}
}
int32_t iguana_pendingaccept(struct iguana_info *coin)
{
struct iguana_accept *ptr; char ipaddr[64]; struct iguana_peer *addr;
if ( (ptr= queue_dequeue(&coin->acceptQ,0)) != 0 )
{
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if ( (addr= iguana_peerslot(coin,ptr->ipbits,0)) != 0 )
{
expand_ipbits(ipaddr,ptr->ipbits);
printf("iguana_pendingaccept LAUNCH DEDICATED THREAD for %s\n",ipaddr);
addr->usock = ptr->sock;
strcpy(addr->symbol,coin->symbol);
iguana_launch(coin,"accept",iguana_dedicatedglue,addr,IGUANA_CONNTHREAD);
myfree(ptr,sizeof(*ptr));
return(1);
} else queue_enqueue("requeue_acceptQ",&coin->acceptQ,&ptr->DL,0);
}
return(0);
}
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/*int32_t iguana_acceptport(struct iguana_info *coin,uint16_t port)
{
if ( OS_thread_create(malloc(sizeof(pthread_t)),NULL,(void *)iguana_acceptloop,(void *)coin) != 0 )
{
printf("error launching accept thread for port.%u\n",port);
return(-1);
}
return(0);
}*/
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void iguana_msgrequestQ(struct iguana_info *coin,struct iguana_peer *addr,int32_t type,bits256 hash2)
{
struct iguana_peermsgrequest *msg;
msg = calloc(1,sizeof(*msg));
msg->addr = addr;
msg->hash2 = hash2;
msg->type = type;
queue_enqueue("msgrequest",&coin->msgrequestQ,&msg->DL,0);
}
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int32_t iguana_process_msgrequestQ(struct iguana_info *coin)
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{
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struct iguana_peermsgrequest *msg; int32_t height,len,flag = 0; bits256 checktxid; struct iguana_txid *tx,T;
if ( (msg= queue_dequeue(&coin->msgrequestQ,0)) != 0 )
{
flag = 1;
if ( msg->addr != 0 )
{
char str[65]; printf("send type.%d %s -> (%s)\n",msg->type,bits256_str(str,msg->hash2),msg->addr->ipaddr);
if ( msg->type == MSG_BLOCK )
{
if ( coin->RELAYNODE != 0 || coin->VALIDATENODE )
{
if ( (len= iguana_peerblockrequest(coin,&coin->blockspace[sizeof(struct iguana_msghdr)],sizeof(coin->blockspace),0,msg->hash2,0)) > 0 )
{
iguana_queue_send(coin,msg->addr,0,coin->blockspace,"block",len,0,0);
}
}
}
else if ( msg->type == MSG_TX )
{
if ( coin->RELAYNODE != 0 || coin->VALIDATENODE )
{
if ( (tx= iguana_txidfind(coin,&height,&T,msg->hash2,coin->bundlescount-1)) != 0 )
{
if ( (len= iguana_ramtxbytes(coin,&coin->blockspace[sizeof(struct iguana_msghdr)],sizeof(coin->blockspace),&checktxid,tx,height,0,0,0)) > 0 )
{
char str[65],str2[65];
if ( bits256_cmp(msg->hash2,checktxid) == 0 )
iguana_queue_send(coin,msg->addr,0,coin->blockspace,"block",len,0,0);
else printf("checktxid mismatch (%s) != (%s)\n",bits256_str(str,msg->hash2),bits256_str(str2,checktxid));
}
}
}
}
else if ( msg->type == MSG_FILTERED_BLOCK )
{
}
else if ( msg->type == MSG_BUNDLE_HEADERS )
{
}
else if ( msg->type == MSG_BUNDLE )
{
}
}
free(msg);
}
return(flag);
}
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int32_t iguana_peerdatarequest(struct iguana_info *coin,struct iguana_peer *addr,uint8_t *data,int32_t recvlen)
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{
int32_t i,type,len = 0; uint64_t x; bits256 hash2;
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len += iguana_rwvarint(0,data,&x);
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//for (i=0; i<10; i++)
// printf("%02x ",data[i]);
//printf("x.%d recvlen.%d\n",(int32_t)x,recvlen);
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if ( x < IGUANA_MAXINV )
{
for (i=0; i<x; i++)
{
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len += iguana_rwnum(0,&data[len],sizeof(uint32_t),&type);
len += iguana_rwbignum(0,&data[len],sizeof(bits256),hash2.bytes);
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iguana_msgrequestQ(coin,addr,type,hash2);
}
}
return(len);
}
int32_t iguana_peerhdrrequest(struct iguana_info *coin,uint8_t *serialized,int32_t maxsize,struct iguana_peer *addr,bits256 hash2)
{
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int32_t len=0,i,height,hdrsi,bundlei,bundlesize,firstvout,retval=-1; struct iguana_block *block; struct iguana_msgblock msgB; bits256 checkhash2; struct iguana_bundle *bp;
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if ( (firstvout= iguana_unspentindfind(coin,&height,hash2,0,coin->bundlescount-1)) != 0 )
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{
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bundlesize = coin->chain->bundlesize;
hdrsi = (height / bundlesize);
bundlei = height - (hdrsi * bundlesize);
if ( hdrsi >= 0 && hdrsi < bundlesize && bundlei >= 0 && bundlei < bundlesize && (bp= coin->bundles[hdrsi]) != 0 )
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{
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for (i=0; i<coin->chain->bundlesize; i++)
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{
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if ( (block= bp->blocks[i]) != 0 )
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{
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iguana_blockunconv(&msgB,block,1);
len += iguana_rwblock(1,&checkhash2,&serialized[sizeof(struct iguana_msghdr) + len],&msgB);
if ( bits256_cmp(checkhash2,block->RO.hash2) != 0 )
{
char str[65],str2[65];
printf("iguana_peerhdrrequest blockhash.%d error (%s) vs (%s)\n",height+i,bits256_str(str,checkhash2),bits256_str(str2,block->RO.hash2));
return(-1);
}
} else printf("cant find block at ht.%d\n",height+i);
}
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}
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retval = iguana_queue_send(coin,addr,0,serialized,"headers",len,0,0);
printf("hdrs request retval.%d len.%d\n",retval,len);
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} //else printf("couldnt find header\n");
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return(retval);
}
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int32_t iguana_peergetrequest(struct iguana_info *coin,struct iguana_peer *addr,uint8_t *data,int32_t recvlen,int32_t getblock)
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{
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int32_t i,reqvers,len,n,flag = 0; bits256 hash2;
if ( getblock != 0 )
addr->msgcounts.getblocks++;
else addr->msgcounts.getheaders++;
len = iguana_rwnum(0,&data[0],sizeof(uint32_t),&reqvers);
len += iguana_rwvarint32(0,&data[len],(uint32_t *)&n);
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for (i=0; i<n&&len<=recvlen-sizeof(bits256)*2; i++)
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{
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len += iguana_rwbignum(0,&data[len],sizeof(bits256),hash2.bytes);
if ( bits256_nonz(hash2) == 0 )
break;
if ( flag == 0 )
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{
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if ( getblock != 0 && iguana_peerblockrequest(coin,addr->blockspace,sizeof(addr->blockspace),addr,hash2,0) > 0 )
flag = 1;
else if ( getblock == 0 && iguana_peerhdrrequest(coin,addr->blockspace,sizeof(addr->blockspace),addr,hash2) > 0 )
flag = 1;
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}
}
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len += iguana_rwbignum(0,&data[len],sizeof(bits256),hash2.bytes);
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//for (i=0; i<69; i++)
// printf("%02x ",data[i]);
//printf("version.%d num blocks.%d recvlen.%d len.%d\n",reqvers,n,recvlen,len);
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return(len);
}
int32_t iguana_peeraddrrequest(struct iguana_info *coin,struct iguana_peer *addr,uint8_t *space,int32_t spacesize)
{
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int32_t i,iter,n,max,sendlen; uint64_t x; struct iguana_msghdr H; struct iguana_peer *tmpaddr;
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sendlen = 0;
max = (IGUANA_MINPEERS + IGUANA_MAXPEERS) / 2;
if ( max > coin->peers.numranked )
max = coin->peers.numranked;
x = 0;
sendlen = iguana_rwvarint(1,&space[sizeof(H)],&x);
for (iter=0; iter<2; iter++)
{
for (i=n=0; i<max; i++)
{
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if ( (tmpaddr= coin->peers.ranked[i]) != 0 && ((iter == 0 && tmpaddr->supernet != 0) || (iter == 1 && tmpaddr->supernet == 0)) && tmpaddr->ipaddr[0] != 0 )
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{
sendlen += iguana_rwaddr(1,&space[sizeof(H) + sendlen],&tmpaddr->A,(int32_t)tmpaddr->protover);
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printf("(%s) ",tmpaddr->ipaddr);
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x++;
}
}
}
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iguana_rwvarint(1,&space[sizeof(H)],&x);
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printf("addrrequest: sendlen.%d x.%d\n",sendlen,(int32_t)x);
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if ( x == 0 )
return(-1);
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return(sendlen);
}