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SecureSkat_game.cc
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SecureSkat_game.cc
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/*******************************************************************************
This file is part of SecureSkat.
Copyright (C) 2004, 2005, 2006, 2007,
2017, 2018, 2019 Heiko Stamer <HeikoStamer@gmx.net>
SecureSkat is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
SecureSkat is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with SecureSkat; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
*******************************************************************************/
#include "SecureSkat_game.hh"
int skat_vkarte
(
size_t pkr_self, size_t pkr_who, SchindelhauerTMCG *tmcg,
BarnettSmartVTMF_dlog *vtmf, TMCG_Stack<VTMF_Card> &s,
iosecuresocketstream *right, iosecuresocketstream *left, bool rmv
)
{
assert(pkr_self != pkr_who);
#ifndef NDEBUG
start_clock();
#endif
try
{
if (((pkr_self == 0) && (pkr_who == 1)) ||
((pkr_self == 1) && (pkr_who == 2)) ||
((pkr_self == 2) && (pkr_who == 0)))
{
VTMF_Card c;
*left >> c;
if (!left->good())
throw -1;
if (!s.find(c))
throw -1;
tmcg->TMCG_SelfCardSecret(c, vtmf);
if (!tmcg->TMCG_VerifyCardSecret(c, vtmf, *left, *left))
throw -1;
if ((pkr_self == 0) && (pkr_who == 1))
tmcg->TMCG_ProveCardSecret(c, vtmf, *right, *right);
if ((pkr_self == 1) && (pkr_who == 2))
{
if (!tmcg->TMCG_VerifyCardSecret(c, vtmf, *right, *right))
throw -1;
}
if ((pkr_self == 2) && (pkr_who == 0))
{
if (!tmcg->TMCG_VerifyCardSecret(c, vtmf, *right, *right))
throw -1;
}
if ((pkr_self == 0) && (pkr_who == 1))
{
if (!tmcg->TMCG_VerifyCardSecret(c, vtmf, *right, *right))
throw -1;
}
if ((pkr_self == 1) && (pkr_who == 2))
tmcg->TMCG_ProveCardSecret(c, vtmf, *right, *right);
if ((pkr_self == 2) && (pkr_who == 0))
tmcg->TMCG_ProveCardSecret(c, vtmf, *right, *right);
int type = tmcg->TMCG_TypeOfCard(c, vtmf);
if (rmv)
s.remove(c);
throw type;
}
if (((pkr_self == 0) && (pkr_who == 2)) ||
((pkr_self == 1) && (pkr_who == 0)) ||
((pkr_self == 2) && (pkr_who == 1)))
{
VTMF_Card c;
*right >> c;
if (!right->good())
throw -1;
if (!s.find(c))
throw -1;
tmcg->TMCG_SelfCardSecret(c, vtmf);
if (!tmcg->TMCG_VerifyCardSecret(c, vtmf, *right, *right))
throw -1;
if ((pkr_self == 0) && (pkr_who == 2))
tmcg->TMCG_ProveCardSecret(c, vtmf, *left, *left);
if ((pkr_self == 1) && (pkr_who == 0))
tmcg->TMCG_ProveCardSecret(c, vtmf, *left, *left);
if ((pkr_self == 2) && (pkr_who == 1))
{
if (!tmcg->TMCG_VerifyCardSecret(c, vtmf, *left, *left))
throw -1;
}
if ((pkr_self == 0) && (pkr_who == 2))
{
if (!tmcg->TMCG_VerifyCardSecret(c, vtmf, *left, *left))
throw -1;
}
if ((pkr_self == 1) && (pkr_who == 0))
{
if (!tmcg->TMCG_VerifyCardSecret(c, vtmf, *left, *left))
throw -1;
}
if ((pkr_self == 2) && (pkr_who == 1))
tmcg->TMCG_ProveCardSecret(c, vtmf, *left, *left);
int type = tmcg->TMCG_TypeOfCard(c, vtmf);
if (rmv)
s.remove(c);
throw type;
}
throw -1;
}
catch (int return_value)
{
#ifndef NDEBUG
stop_clock();
std::cerr << elapsed_time() << std::flush;
#endif
return return_value;
}
}
void skat_okarte
(
SchindelhauerTMCG *tmcg, BarnettSmartVTMF_dlog *vtmf, const VTMF_Card &c,
iosecuresocketstream *right, iosecuresocketstream *left
)
{
#ifndef NDEBUG
start_clock();
#endif
// use the non-interactiveness of the proof (only VTMF!)
std::stringstream proof;
tmcg->TMCG_ProveCardSecret(c, vtmf, proof, proof);
*right << c << std::endl << std::flush;
*right << proof.str() << std::flush;
*left << c << std::endl << std::flush;
*left << proof.str() << std::flush;
#ifndef NDEBUG
stop_clock();
std::cerr << elapsed_time() << std::flush;
#endif
}
void skat_szeigen
(
SchindelhauerTMCG *tmcg, BarnettSmartVTMF_dlog *vtmf,
const TMCG_Stack<VTMF_Card> &sk, iosecuresocketstream *rls
)
{
for (size_t i = 0; i < sk.size(); i++)
tmcg->TMCG_ProveCardSecret(sk[i], vtmf, *rls, *rls);
}
bool skat_ssehen
(
size_t pkr_self, SchindelhauerTMCG *tmcg, BarnettSmartVTMF_dlog *vtmf,
TMCG_OpenStack<VTMF_Card> &os, const TMCG_Stack<VTMF_Card> &sk,
iosecuresocketstream *right, iosecuresocketstream *left
)
{
for (size_t i = 0; i < sk.size(); i++)
{
tmcg->TMCG_SelfCardSecret(sk[i], vtmf);
if (pkr_self == 0)
{
if (!tmcg->TMCG_VerifyCardSecret(sk[i], vtmf, *left, *left))
return false;
if (!tmcg->TMCG_VerifyCardSecret(sk[i], vtmf, *right, *right))
return false;
}
else if (pkr_self == 1)
{
if (!tmcg->TMCG_VerifyCardSecret(sk[i], vtmf, *left, *left))
return false;
if (!tmcg->TMCG_VerifyCardSecret(sk[i], vtmf, *right, *right))
return false;
}
else if (pkr_self == 2)
{
if (!tmcg->TMCG_VerifyCardSecret(sk[i], vtmf, *left, *left))
return false;
if (!tmcg->TMCG_VerifyCardSecret(sk[i], vtmf, *right, *right))
return false;
}
os.push(tmcg->TMCG_TypeOfCard(sk[i], vtmf), sk[i]);
}
return true;
}
bool skat_sehen
(
size_t pkr_self, SchindelhauerTMCG *tmcg, BarnettSmartVTMF_dlog *vtmf,
TMCG_OpenStack<VTMF_Card> &os, const TMCG_Stack<VTMF_Card> &s0,
const TMCG_Stack<VTMF_Card> &s1, const TMCG_Stack<VTMF_Card> &s2,
iosecuresocketstream *right, iosecuresocketstream *left
)
{
if (pkr_self == 0)
{
for (size_t i = 0; i < s0.size(); i++)
{
tmcg->TMCG_SelfCardSecret(s0[i], vtmf);
if (!tmcg->TMCG_VerifyCardSecret(s0[i], vtmf, *left, *left))
return false;
if (!tmcg->TMCG_VerifyCardSecret(s0[i], vtmf, *right, *right))
return false;
os.push(tmcg->TMCG_TypeOfCard(s0[i], vtmf), s0[i]);
}
for (size_t i = 0; i < s1.size(); i++)
tmcg->TMCG_ProveCardSecret(s1[i], vtmf, *left, *left);
for (size_t i = 0; i < s2.size(); i++)
tmcg->TMCG_ProveCardSecret(s2[i], vtmf, *right, *right);
}
if (pkr_self == 1)
{
for (size_t i = 0; i < s0.size(); i++)
tmcg->TMCG_ProveCardSecret(s0[i], vtmf, *right, *right);
for (size_t i = 0; i < s1.size(); i++)
{
tmcg->TMCG_SelfCardSecret(s1[i], vtmf);
if (!tmcg->TMCG_VerifyCardSecret(s1[i], vtmf, *right, *right))
return false;
if (!tmcg->TMCG_VerifyCardSecret(s1[i], vtmf, *left, *left))
return false;
os.push(tmcg->TMCG_TypeOfCard(s1[i], vtmf), s1[i]);
}
for (size_t i = 0; i < s2.size(); i++)
tmcg->TMCG_ProveCardSecret(s2[i], vtmf, *left, *left);
}
if (pkr_self == 2)
{
for (size_t i = 0; i < s0.size(); i++)
tmcg->TMCG_ProveCardSecret(s0[i], vtmf, *left, *left);
for (size_t i = 0; i < s1.size(); i++)
tmcg->TMCG_ProveCardSecret(s1[i], vtmf, *right, *right);
for (size_t i = 0; i < s2.size(); i++)
{
tmcg->TMCG_SelfCardSecret(s2[i], vtmf);
if (!tmcg->TMCG_VerifyCardSecret(s2[i], vtmf, *left, *left))
return false;
if (!tmcg->TMCG_VerifyCardSecret(s2[i], vtmf, *right, *right))
return false;
os.push(tmcg->TMCG_TypeOfCard(s2[i], vtmf), s2[i]);
}
}
return true;
}
bool skat_geben
(
TMCG_Stack<VTMF_Card> &d_mix,
TMCG_Stack<VTMF_Card> &s0, TMCG_Stack<VTMF_Card> &s1,
TMCG_Stack<VTMF_Card> &s2, TMCG_Stack<VTMF_Card> &sk
)
{
VTMF_Card c;
for (size_t i = 0; i < 3; i++)
{
if (!d_mix.pop(c))
return false;
s0.push(c);
}
for (size_t i = 0; i < 3; i++)
{
if (!d_mix.pop(c))
return false;
s1.push(c);
}
for (size_t i = 0; i < 3; i++)
{
if (!d_mix.pop(c))
return false;
s2.push(c);
}
for (size_t i = 0; i < 2; i++)
{
if (!d_mix.pop(c))
return false;
sk.push(c);
}
for (size_t i = 0; i < 4; i++)
{
if (!d_mix.pop(c))
return false;
s0.push(c);
}
for (size_t i = 0; i < 4; i++)
{
if (!d_mix.pop(c))
return false;
s1.push(c);
}
for (size_t i = 0; i < 4; i++)
{
if (!d_mix.pop(c))
return false;
s2.push(c);
}
for (size_t i = 0; i < 3; i++)
{
if (!d_mix.pop(c))
return false;
s0.push(c);
}
for (size_t i = 0; i < 3; i++)
{
if (!d_mix.pop(c))
return false;
s1.push(c);
}
for (size_t i = 0; i < 3; i++)
{
if (!d_mix.pop(c))
return false;
s2.push(c);
}
assert(d_mix.size() == 0);
return true;
}
bool skat_mischen_beweis
(
size_t pkr_self, SchindelhauerTMCG *tmcg, BarnettSmartVTMF_dlog *vtmf,
GrothVSSHE *vsshe, const TMCG_Stack<VTMF_Card> &d,
const TMCG_StackSecret<VTMF_CardSecret> &ss,
const TMCG_Stack<VTMF_Card> &d0, const TMCG_Stack<VTMF_Card> &d1,
const TMCG_Stack<VTMF_Card> &d2,
iosecuresocketstream *right, iosecuresocketstream *left
)
{
if (pkr_self == 0)
{
tmcg->TMCG_ProveStackEquality_Groth(d, d0, ss, vtmf, vsshe, *left, *left);
tmcg->TMCG_ProveStackEquality_Groth(d, d0, ss, vtmf, vsshe, *right, *right);
if (!tmcg->TMCG_VerifyStackEquality_Groth(d0, d1, vtmf, vsshe, *left, *left))
return false;
if (!tmcg->TMCG_VerifyStackEquality_Groth(d1, d2, vtmf, vsshe, *right, *right))
return false;
}
if (pkr_self == 1)
{
if (!tmcg->TMCG_VerifyStackEquality_Groth(d, d0, vtmf, vsshe, *right, *right))
return false;
tmcg->TMCG_ProveStackEquality_Groth(d0, d1, ss, vtmf, vsshe, *right, *right);
tmcg->TMCG_ProveStackEquality_Groth(d0, d1, ss, vtmf, vsshe, *left, *left);
if (!tmcg->TMCG_VerifyStackEquality_Groth(d1, d2, vtmf, vsshe, *left, *left))
return false;
}
if (pkr_self == 2)
{
if (!tmcg->TMCG_VerifyStackEquality_Groth(d, d0, vtmf, vsshe, *left, *left))
return false;
if (!tmcg->TMCG_VerifyStackEquality_Groth(d0, d1, vtmf, vsshe, *right, *right))
return false;
tmcg->TMCG_ProveStackEquality_Groth(d1, d2, ss, vtmf, vsshe, *left, *left);
tmcg->TMCG_ProveStackEquality_Groth(d1, d2, ss, vtmf, vsshe, *right, *right);
}
return true;
}
bool skat_mischen
(
size_t pkr_self, SchindelhauerTMCG *tmcg, BarnettSmartVTMF_dlog *vtmf,
const TMCG_Stack<VTMF_Card> &d, const TMCG_StackSecret<VTMF_CardSecret> &ss,
TMCG_Stack<VTMF_Card> &d0, TMCG_Stack<VTMF_Card> &d1,
TMCG_Stack<VTMF_Card> &d2,
iosecuresocketstream *right, iosecuresocketstream *left
)
{
if (pkr_self == 0)
{
tmcg->TMCG_MixStack(d, d0, ss, vtmf);
*right << d0 << std::endl << std::flush;
*left << d0 << std::endl << std::flush;
*left >> d1;
if (!left->good())
return false;
*right >> d2;
if (!right->good())
return false;
}
else if (pkr_self == 1)
{
*right >> d0;
if (!right->good())
return false;
tmcg->TMCG_MixStack(d0, d1, ss, vtmf);
*right << d1 << std::endl << std::flush;
*left << d1 << std::endl << std::flush;
*left >> d2;
if (!left->good())
return false;
}
else if (pkr_self == 2)
{
*left >> d0;
if (!left->good())
return false;
*right >> d1;
if (!right->good())
return false;
tmcg->TMCG_MixStack(d1, d2, ss, vtmf);
*right << d2 << std::endl << std::flush;
*left << d2 << std::endl << std::flush;
}
else
return false;
return true;
}
bool game_helper_1
(size_t &reiz_status, size_t &spiel_allein, size_t vh, size_t mh, size_t hh,
size_t reiz_counter, size_t pkr_self, const std::vector<std::string> &nicks,
const TMCG_PublicKeyRing &pkr, bool pctl, opipestream *out_ctl)
{
switch (reiz_status)
{
case 11:
reiz_status += 100;
std::cout << "><><>< " << _("Nobody is biding.") <<
" " << _("Deal again!") << std::endl;
if (pctl)
{
std::ostringstream ost;
ost << nicks[pkr_self] << " RAMSCH" << std::endl;
*out_ctl << ost.str() << std::flush;
}
return false;
case 12:
reiz_status += 100;
std::cout << "><><>< VH aka \"" << pkr.keys[vh].name <<
"\" " << _("gets the game at") << " " <<
skat_reizwert[reiz_counter] << std::endl;
spiel_allein = vh;
if (pctl)
*out_ctl << nicks[spiel_allein] << " SPIELT" << std::endl <<
std::flush;
return true;
case 13:
reiz_status += 100;
std::cout << "><><>< MH aka \"" << pkr.keys[mh].name <<
"\" " << _("gets the game at") << " " <<
skat_reizwert[reiz_counter] << std::endl;
spiel_allein = mh;
if (pctl)
*out_ctl << nicks[spiel_allein] << " SPIELT" << std::endl <<
std::flush;
return true;
case 14:
reiz_status += 100;
std::cout << "><><>< HH aka \"" << pkr.keys[hh].name <<
"\" " << _("gets the game at") << " " <<
skat_reizwert[reiz_counter] << std::endl;
spiel_allein = hh;
if (pctl)
*out_ctl << nicks[spiel_allein] << " SPIELT" << std::endl <<
std::flush;
return true;
default:
return true;
}
}
int skat_game
(
std::string nr, size_t rounds, size_t pkr_self, bool master, int opipe,
int ipipe, int ctl_o, int ctl_i, SchindelhauerTMCG *tmcg,
TMCG_PublicKeyRing &pkr, const TMCG_SecretKey &sec,
iosecuresocketstream *right, iosecuresocketstream *left,
const std::vector<std::string> &nicks, int hpipe, bool pctl,
char *ireadbuf, size_t &ireaded,
std::string main_channel, std::string main_channel_underscore
)
{
if (!gcry_md_get_algo_dlen(GCRY_MD_RMD160))
{
std::cout << ">< " << _("ERROR") << ": " <<
_("gcry_md_get_algo_dlen() failed") << std::endl;
return 1;
}
unsigned int dlen = gcry_md_get_algo_dlen(GCRY_MD_RMD160);
opipestream *out_pipe = new opipestream(opipe), *out_ctl = NULL;
if (pctl)
out_ctl = new opipestream(ctl_o);
int pkt_sum[3] = { 0, 0, 0 };
// send INIT messages to control program
for (size_t i = 0; pctl && (i < 3); i++)
{
std::ostringstream ost;
ost << nicks[pkr_self] << " INIT " << nicks[i] << " " <<
pkr.keys[i].name << std::endl;
*out_ctl << ost.str() << std::flush;
}
// VTMF initialization
BarnettSmartVTMF_dlog *vtmf;
#ifndef NDEBUG
start_clock();
#endif
switch (pkr_self)
{
case 0:
vtmf = new BarnettSmartVTMF_dlog(*right);
break;
case 1:
vtmf = new BarnettSmartVTMF_dlog(*left);
break;
case 2:
vtmf = new BarnettSmartVTMF_dlog();
vtmf->PublishGroup(*left);
vtmf->PublishGroup(*right);
break;
default:
if (pctl)
delete out_ctl;
delete out_pipe;
return 2; // should never happen
}
if (!vtmf->CheckGroup())
{
std::cout << ">< " << _("VTMF ERROR") << ": " <<
_("function CheckGroup() failed") << std::endl;
delete vtmf;
if (pctl)
delete out_ctl;
delete out_pipe;
return 2;
}
vtmf->KeyGenerationProtocol_GenerateKey();
switch (pkr_self)
{
case 0:
if (!vtmf->KeyGenerationProtocol_UpdateKey(*right))
{
std::cout << ">< " << _("VTMF ERROR") << ": " << _("function KeyGenerationProtocol_UpdateKey() failed") << std::endl;
delete vtmf;
if (pctl)
delete out_ctl;
delete out_pipe;
return 2;
}
vtmf->KeyGenerationProtocol_PublishKey(*left);
vtmf->KeyGenerationProtocol_PublishKey(*right);
if (!vtmf->KeyGenerationProtocol_UpdateKey(*left))
{
std::cout << ">< " << _("VTMF ERROR") << ": " << _("function KeyGenerationProtocol_UpdateKey() failed") << std::endl;
delete vtmf;
if (pctl)
delete out_ctl;
delete out_pipe;
return 2;
}
break;
case 1:
if (!vtmf->KeyGenerationProtocol_UpdateKey(*left))
{
std::cout << ">< " << _("VTMF ERROR") << ": " << _("function KeyGenerationProtocol_UpdateKey() failed") << std::endl;
delete vtmf;
if (pctl)
delete out_ctl;
delete out_pipe;
return 2;
}
if (!vtmf->KeyGenerationProtocol_UpdateKey(*right))
{
std::cout << ">< " << _("VTMF ERROR") << ": " << _("function KeyGenerationProtocol_UpdateKey() failed") << std::endl;
delete vtmf;
if (pctl)
delete out_ctl;
delete out_pipe;
return 2;
}
vtmf->KeyGenerationProtocol_PublishKey(*left);
vtmf->KeyGenerationProtocol_PublishKey(*right);
break;
case 2:
vtmf->KeyGenerationProtocol_PublishKey(*left);
vtmf->KeyGenerationProtocol_PublishKey(*right);
if (!vtmf->KeyGenerationProtocol_UpdateKey(*left))
{
std::cout << ">< " << _("VTMF ERROR") << ": " << _("function KeyGenerationProtocol_UpdateKey() failed") << std::endl;
delete vtmf;
if (pctl)
delete out_ctl;
delete out_pipe;
return 2;
}
if (!vtmf->KeyGenerationProtocol_UpdateKey(*right))
{
std::cout << ">< " << _("VTMF ERROR") << ": " << _("function KeyGenerationProtocol_UpdateKey() failed") << std::endl;
delete vtmf;
if (pctl)
delete out_ctl;
delete out_pipe;
return 2;
}
break;
}
vtmf->KeyGenerationProtocol_Finalize();
#ifndef NDEBUG
stop_clock();
std::cerr << "KeyGenerationProtocol: " << elapsed_time() << std::endl;
#endif
// initialization for Groth's shuffle argument
GrothVSSHE *vsshe;
#ifndef NDEBUG
start_clock();
#endif
switch (pkr_self)
{
case 0:
vsshe = new GrothVSSHE(32, *right);
break;
case 1:
vsshe = new GrothVSSHE(32, *left);
break;
case 2:
vsshe = new GrothVSSHE(32, vtmf->p, vtmf->q, vtmf->k, vtmf->g, vtmf->h);
vsshe->PublishGroup(*left);
vsshe->PublishGroup(*right);
break;
default:
delete vtmf;
if (pctl)
delete out_ctl;
delete out_pipe;
return 2; // should never happen
}
if (!vsshe->CheckGroup())
{
std::cout << ">< " << _("VSSHE ERROR") << ": " << _("function CheckGroup() failed") << std::endl;
delete vsshe;
delete vtmf;
if (pctl)
delete out_ctl;
delete out_pipe;
return 2;
}
if (mpz_cmp(vtmf->h, vsshe->com->h))
{
std::cout << ">< " << _("VSSHE ERROR") << ": " << _("common public key does not match") << std::endl;
delete vsshe;
delete vtmf;
if (pctl)
delete out_ctl;
delete out_pipe;
return 2;
}
if (mpz_cmp(vtmf->q, vsshe->com->q))
{
std::cout << ">< " << _("VSSHE ERROR") << ": " << _("subgroup order does not match") << std::endl;
delete vsshe;
delete vtmf;
if (pctl)
delete out_ctl;
delete out_pipe;
return 2;
}
if (mpz_cmp(vtmf->p, vsshe->p) || mpz_cmp(vtmf->q, vsshe->q) || mpz_cmp(vtmf->g, vsshe->g) || mpz_cmp(vtmf->h, vsshe->h))
{
std::cout << ">< " << _("VSSHE ERROR") << ": " << _("encryption scheme does not match") << std::endl;
delete vsshe;
delete vtmf;
if (pctl)
delete out_ctl;
delete out_pipe;
return 2;
}
#ifndef NDEBUG
stop_clock();
std::cerr << "KeyGenerationProtocol2a: " << elapsed_time() << std::endl;
start_clock();
#endif
vsshe->SetupGenerators_publiccoin(vtmf->h);
#ifndef NDEBUG
stop_clock();
std::cerr << "KeyGenerationProtocol2b: " << elapsed_time() << std::endl;
#endif
// loop the given number of rounds
for (size_t r = 0; r < rounds; r++)
{
std::ostringstream spiel_protokoll;
spiel_protokoll << "prt#" << nr << "#";
for (size_t p = 0; p < 3; p++)
spiel_protokoll << nicks[p] << "#";
// play three games in each round
for (size_t p = 0; p < 3; p++)
{
// create the deck (containing 32 different cards)
TMCG_OpenStack<VTMF_Card> d;
for (int i = 0; i < 32; i++)
{
VTMF_Card c;
tmcg->TMCG_CreateOpenCard(c, vtmf, i);
d.push(i, c);
}
// shuffle the deck
TMCG_Stack<VTMF_Card> d2, d_mix[3], d_end;
TMCG_StackSecret<VTMF_CardSecret> ss, ab;
d2.push(d);
tmcg->TMCG_CreateStackSecret(ss, false, d2.size(), vtmf);
std::cout << "><>< " << _("Shuffle the cards.") << " " << _("Please wait") << "." << std::flush;
if (pctl)
{
std::ostringstream ost;
ost << nicks[pkr_self] << " MISCHEN" << std::endl;
*out_ctl << ost.str() << std::flush;
}
#ifndef NDEBUG
start_clock();
#endif
if (!skat_mischen(pkr_self, tmcg, vtmf, d2, ss, d_mix[0], d_mix[1],
d_mix[2], right, left))
{
std::cout << ">< " << _("shuffling error") << ": " << _("bad stack format") << std::endl;
delete vsshe;
delete vtmf;
if (pctl)
delete out_ctl;
delete out_pipe;
return 1;
}
#ifndef NDEBUG
stop_clock();
std::cerr << elapsed_time() << std::flush;
#endif
std::cout << "." << std::flush;
#ifndef NDEBUG
start_clock();
#endif
if (!skat_mischen_beweis(pkr_self, tmcg, vtmf, vsshe, d2, ss,
d_mix[0], d_mix[1], d_mix[2], right, left))
{
std::cout << ">< " << _("shuffling error") << ": " << _("wrong ZK proof") << std::endl;
delete vsshe;
delete vtmf;
if (pctl)
delete out_ctl;
delete out_pipe;
return 2;
}
#ifndef NDEBUG
stop_clock();
std::cerr << elapsed_time() << std::flush;
#endif
std::cout << "." << _("finished!") << std::endl;
d_end = d_mix[2];
// compute unique game ID (aka hex_game_digest)
std::ostringstream game_stream;
game_stream << d_end << std::endl << std::flush;
std::string osttmp = game_stream.str();
char *game_digest = new char[dlen];
gcry_md_hash_buffer(GCRY_MD_RMD160, game_digest, osttmp.c_str(),
osttmp.length());
char *hex_game_digest = new char[2 * dlen + 1];
for (size_t i = 0; i < dlen; i++)
snprintf(hex_game_digest + (2 * i), 3, "%02x", (unsigned char)game_digest[i]);
delete [] game_digest;
// dealing the cards
std::cout << "><>< " << _("Dealing the cards.") << " " << _("Please wait") << "." << std::flush;
if (pctl)
{
std::ostringstream ost;
ost << nicks[pkr_self] << " GEBEN" << std::endl;
*out_ctl << ost.str() << std::flush;
}
#ifndef NDEBUG
start_clock();
#endif
TMCG_Stack<VTMF_Card> s[3], sk;
if (!skat_geben(d_end, s[0], s[1], s[2], sk))
{
std::cout << ">< " << _("dealing error") << ": " << _("not enough cards") << std::endl;
delete [] hex_game_digest;
delete vsshe;
delete vtmf;
if (pctl)
delete out_ctl;
delete out_pipe;
return 3;
}
std::cout << "." << std::flush;
TMCG_OpenStack<VTMF_Card> os, os_ov, os_sp, os_st, os_pkt[3], os_rc[3];
if (!skat_sehen(pkr_self, tmcg, vtmf, os, s[0], s[1], s[2],
right, left))
{
std::cout << ">< " << _("dealing error") << ": " << _("wrong ZK proof") << std::endl;
delete [] hex_game_digest;
delete vsshe;
delete vtmf;
if (pctl)
delete out_ctl;
delete out_pipe;
return 4;
}
#ifndef NDEBUG
stop_clock();
std::cerr << elapsed_time() << std::flush;
#endif
std::cout << "." << _("finished!") << std::endl;
for (size_t i = 0; pctl && (i < os.size()); i++)
{
std::ostringstream ost;
ost << nicks[pkr_self] << " KARTE " << os[i].first << std::endl;
*out_ctl << ost.str() << std::flush;
}
if (pctl)
{
std::ostringstream ost;
ost << nicks[pkr_self] << " START " << ((pkr_self + p) % 3) << std::endl;
*out_ctl << ost.str() << std::flush;
}
size_t reiz_status = 0, reiz_counter = 0, vh = 0, mh = 0, hh = 0;
size_t spiel_status = 0, spiel_allein = 0, spiel_dran = 0, spiel_who[3];
bool hand_spiel = false, started = false;
if (p == 0)
vh = 0, mh = 1, hh = 2;
if (p == 1)
vh = 2, mh = 0, hh = 1;
if (p == 2)
vh = 1, mh = 2, hh = 0;
skat_blatt((pkr_self + p) % 3, os);
fd_set rfds; // set of read descriptors
int mfds = 0; // highest-numbered descriptor
while ((s[0].size() > 0) || (s[1].size() > 0) || (s[2].size() > 0))
{
if (!left->good() || !right->good())
{
std::cout << ">< " << _("connection with participating player(s) collapsed") << std::endl;
delete [] hex_game_digest;
delete vsshe;
delete vtmf;
if (pctl)
delete out_ctl;
delete out_pipe;
return 5;
}
if (!game_helper_1(reiz_status, spiel_allein, vh, mh, hh,
reiz_counter, pkr_self, nicks, pkr, pctl, out_ctl))
{
break;
}
// select(2) -- initialize file descriptors
FD_ZERO(&rfds);
if (ipipe < FD_SETSIZE)
MFD_SET(ipipe, &rfds);
if (pctl && (ctl_i < FD_SETSIZE))
MFD_SET(ctl_i, &rfds);
// select(2)
int ret = select(mfds + 1, &rfds, NULL, NULL, NULL);
// error occured
if (ret < 0)
{
if (errno != EINTR)
perror("SecureSkat_vtmf::skat_game (select)");
}
if (ret <= 0)
continue;
ssize_t num = 0;
// pipe request
//FIXME: Was passiert, wenn der Buffer von ipipe und ctl_i ueberfuellt wird?
if (FD_ISSET(ipipe, &rfds))
{
num = read(ipipe, ireadbuf + ireaded, 65536 - ireaded);
//std::cerr << "ipipe got " << num << std::endl;
}
else if (pctl && FD_ISSET(ctl_i, &rfds))
{
num = read(ctl_i, ireadbuf + ireaded, 65536 - ireaded);
//std::cerr << "ctl_i got " << num << std::endl;
}
if (num <= 0)
{
std::cerr << _("read error in skat_game() encountered") <<
" [errno=" << errno << "]" << std::endl;
break;
}
else
ireaded += num;
if (ireaded > 0)
{
bool got_break = false;
std::vector<size_t> pos_delim;
size_t cnt_delim = 0, cnt_pos = 0, pos = 0;
for (size_t i = 0; i < ireaded; i++)
{
if (ireadbuf[i] == '\n')
cnt_delim++, pos_delim.push_back(i);
}
while (cnt_delim >= 1)
{
char xtmp[65536];
memset(xtmp, 0, sizeof(xtmp));
memcpy(xtmp, ireadbuf + cnt_pos, pos_delim[pos] - cnt_pos);
--cnt_delim, cnt_pos = pos_delim[pos] + 1, pos++;
std::string cmd = xtmp;
// do operation
// ------------
if (!left->good() || !right->good())
{
std::cout << ">< " << _("connection with participating player(s) collapsed") << std::endl;
delete [] hex_game_digest;
delete vsshe;
delete vtmf;
if (pctl)
delete out_ctl;
delete out_pipe;
return 5;
}
if (!game_helper_1(reiz_status, spiel_allein, vh, mh, hh, reiz_counter, pkr_self, nicks, pkr, pctl, out_ctl))
{
got_break = true;
break;
}
if ((cmd.find("!KICK", 0) == 0) || (cmd.find("!QUIT", 0) == 0))
{
delete [] hex_game_digest;
delete vsshe;
delete vtmf;
if (pctl)
delete out_ctl;
delete out_pipe;
return 6;
}
if ((cmd.find("PART ", 0) == 0) || (cmd.find("QUIT ", 0) == 0) || (cmd.find("KICK ", 0) == 0))
{
std::string nick = cmd.substr(5, cmd.length() - 5);
if (std::find(nicks.begin(), nicks.end(), nick) != nicks.end())
{
delete [] hex_game_digest;
delete vsshe;
delete vtmf;
if (pctl)
delete out_ctl;
delete out_pipe;
return 7;
}
}
if (master && started && (cmd.find("!ANNOUNCE") == 0))
{
*out_pipe << "PRIVMSG " << main_channel << " :" << nr << "|3~" << (rounds - r) << "!" << std::endl << std::flush;
}
if (cmd.find("IRC ") == 0)
{
*out_pipe << "PRIVMSG " << main_channel << " :" << cmd.substr(4, cmd.length() - 4) << std::endl << std::flush;
}
if ((cmd.find("MSG ") == 0) && (cmd.find(" ", 4) != cmd.npos))
{
std::string nick = cmd.substr(4, cmd.find(" ", 4) - 4);
std::string msg = cmd.substr(cmd.find(" ", 4) + 1, cmd.length() - cmd.find(" ", 4) - 1);
size_t who_biding = 100;
switch (reiz_status)
{
case 1:
case 4:
case 7:
case 10:
who_biding = vh;
break;
case 0:
case 2:
case 9:
who_biding = mh;
break;
case 3:
case 5:
case 6:
case 8:
who_biding = hh;
break;
}
if ((msg.find("PASSE") == 0) || (msg.find("passe") == 0) ||
(msg.find("PASS") == 0) || (msg.find("pass") == 0))