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packet.cc
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#line 1 "packet.rl"
/*
* Copyright (c) 2011, Adrian Thurston <[email protected]>
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include "dsnp.h"
#include "packet.h"
#include "keyagent.h"
#include "error.h"
/*
* Common Stuff.
*/
#line 48 "packet.rl"
#define EP_PUBLIC_KEY 1
#define EP_PUBLIC_KEY_SET 2
#define EP_RELID_SET 3
#define EP_RELID_SET_PAIR 4
#define EP_RELID_RESPONSE 5
#define EP_PRIVATE_KEY 6
#define EP_PW_ENCRYPTED 7
#define EP_SIGNED 8
#define EP_SIGNED_ID 9
#define EP_DETACHED_SIG 10
#define EP_DETACHED_SIG_KEY 11
#define EP_SIGNED_ENCRYPTED 12
#define EP_BK_KEYS 13
#define EP_BK_ENCRYPTED 14
#define EP_BK_SIGNED_ENCRYPTED 15
#define EP_BROADCAST 16
#define EP_RECIPIENT_LIST 17
long binLength( const String &bin )
{
/* FIXME: check for overflow (2 byte length). */
return 2 + bin.length;
}
long stringLength( const String &s )
{
return s.length + 1;
}
long sixtyFourBitLength()
{ return 8; }
u_char *writeBin( u_char *dest, const String &bin )
{
dest[0] = ( (u_long)bin.length >> 8 ) & 0xff;
dest[1] = (u_long)bin.length & 0xff;
memcpy( dest + 2, bin.binary(), bin.length );
dest += 2 + bin.length;
return dest;
}
u_char *writeString( u_char *dest, const String &s )
{
memcpy( dest, s(), s.length );
dest += s.length;
*dest++ = 0;
return dest;
}
u_char *write64Bit( u_char *dest, u_int64_t i )
{
for ( int shift = 56; shift >= 0; shift -= 8 )
*dest++ = ( i >> shift ) & 0xff;
return dest;
}
u_char *writeType( u_char *dest, u_char type )
{
dest[0] = type;
dest += 1;
return dest;
}
/*
* Public Key
*/
Allocated consPublicKey( const PrivateKey &key )
{
long length = 1 + binLength(key.n) + binLength(key.e);
String encPacket( length );
u_char *dest = (u_char*)encPacket.data;
dest = writeType( dest, EP_PUBLIC_KEY );
dest = writeBin( dest, key.n );
dest = writeBin( dest, key.e );
return encPacket.relinquish();
}
#line 143 "packet.rl"
#line 118 "packet.cc"
static const int packet_public_keys_start = 1;
static const int packet_public_keys_first_final = 10;
static const int packet_public_keys_error = 0;
static const int packet_public_keys_en_main = 1;
#line 146 "packet.rl"
Parser::Control PacketPublicKey::data( const char *data, int dlen )
{
#line 131 "packet.cc"
{
cs = packet_public_keys_start;
}
#line 150 "packet.rl"
const u_char *p = (u_char*)data;
const u_char *pe = (u_char*)data + dlen;
#line 142 "packet.cc"
{
short _widec;
if ( p == pe )
goto _test_eof;
switch ( cs )
{
case 1:
if ( (*p) == 1u )
goto st2;
goto st0;
st0:
cs = 0;
goto _out;
st2:
if ( ++p == pe )
goto _test_eof2;
case 2:
if ( (*p) == 0u )
goto tr2;
goto tr3;
tr2:
#line 175 "common.rl"
{ val = 0; }
goto st3;
st3:
if ( ++p == pe )
goto _test_eof3;
case 3:
#line 171 "packet.cc"
if ( (*p) == 0u )
goto st0;
goto tr4;
tr4:
#line 176 "common.rl"
{ val |= *p; }
#line 180 "common.rl"
{
counter = val;
buf.allocate( val );
dest = (u_char*)buf.data;
}
goto st4;
tr6:
#line 185 "common.rl"
{ *dest++ = *p; }
goto st4;
tr13:
#line 172 "common.rl"
{ val |= *p; }
#line 180 "common.rl"
{
counter = val;
buf.allocate( val );
dest = (u_char*)buf.data;
}
goto st4;
st4:
if ( ++p == pe )
goto _test_eof4;
case 4:
#line 203 "packet.cc"
_widec = (*p);
_widec = (short)(256u + ((*p) - 0u));
if (
#line 153 "common.rl"
--counter ) _widec += 256;
if ( _widec > 511 ) {
if ( 512 <= _widec && _widec <= 767 )
goto tr6;
} else if ( _widec >= 256 )
goto tr5;
goto st0;
tr5:
#line 185 "common.rl"
{ *dest++ = *p; }
#line 136 "packet.rl"
{ n.set( buf ); }
goto st5;
st5:
if ( ++p == pe )
goto _test_eof5;
case 5:
#line 225 "packet.cc"
if ( (*p) == 0u )
goto tr7;
goto tr8;
tr7:
#line 175 "common.rl"
{ val = 0; }
goto st6;
st6:
if ( ++p == pe )
goto _test_eof6;
case 6:
#line 237 "packet.cc"
if ( (*p) == 0u )
goto st0;
goto tr9;
tr9:
#line 176 "common.rl"
{ val |= *p; }
#line 180 "common.rl"
{
counter = val;
buf.allocate( val );
dest = (u_char*)buf.data;
}
goto st7;
tr11:
#line 185 "common.rl"
{ *dest++ = *p; }
goto st7;
tr12:
#line 172 "common.rl"
{ val |= *p; }
#line 180 "common.rl"
{
counter = val;
buf.allocate( val );
dest = (u_char*)buf.data;
}
goto st7;
st7:
if ( ++p == pe )
goto _test_eof7;
case 7:
#line 269 "packet.cc"
_widec = (*p);
_widec = (short)(256u + ((*p) - 0u));
if (
#line 153 "common.rl"
--counter ) _widec += 256;
if ( _widec > 511 ) {
if ( 512 <= _widec && _widec <= 767 )
goto tr11;
} else if ( _widec >= 256 )
goto tr10;
goto st0;
tr10:
#line 185 "common.rl"
{ *dest++ = *p; }
#line 137 "packet.rl"
{ e.set( buf ); }
#line 139 "packet.rl"
{
debug( DBG_EP, "encryption packet: public_key: %ld %ld\n",
n.length, e.length );
}
goto st10;
st10:
if ( ++p == pe )
goto _test_eof10;
case 10:
#line 296 "packet.cc"
goto st0;
tr8:
#line 171 "common.rl"
{ val = (u_long)*p << 8; }
goto st8;
st8:
if ( ++p == pe )
goto _test_eof8;
case 8:
#line 306 "packet.cc"
goto tr12;
tr3:
#line 171 "common.rl"
{ val = (u_long)*p << 8; }
goto st9;
st9:
if ( ++p == pe )
goto _test_eof9;
case 9:
#line 316 "packet.cc"
goto tr13;
}
_test_eof2: cs = 2; goto _test_eof;
_test_eof3: cs = 3; goto _test_eof;
_test_eof4: cs = 4; goto _test_eof;
_test_eof5: cs = 5; goto _test_eof;
_test_eof6: cs = 6; goto _test_eof;
_test_eof7: cs = 7; goto _test_eof;
_test_eof10: cs = 10; goto _test_eof;
_test_eof8: cs = 8; goto _test_eof;
_test_eof9: cs = 9; goto _test_eof;
_test_eof: {}
_out: {}
}
#line 155 "packet.rl"
if ( cs <
#line 336 "packet.cc"
10
#line 156 "packet.rl"
)
throw ParseError( __FILE__, __LINE__ );
return Continue;
}
/*
* Public Key Set
*/
Allocated consPublicKeySet( const String &priv0, const String &priv1,
const String &priv2, const String &priv3 )
{
long length = 1 +
binLength(priv0) + binLength(priv1) +
binLength(priv2) + binLength(priv3);
String encPacket( length );
u_char *dest = (u_char*)encPacket.data;
dest = writeType( dest, EP_PUBLIC_KEY_SET );
dest = writeBin( dest, priv0 );
dest = writeBin( dest, priv1 );
dest = writeBin( dest, priv2 );
dest = writeBin( dest, priv3 );
return encPacket.relinquish();
}
#line 200 "packet.rl"
#line 373 "packet.cc"
static const int packet_public_key_set_start = 1;
static const int packet_public_key_set_first_final = 18;
static const int packet_public_key_set_error = 0;
static const int packet_public_key_set_en_main = 1;
#line 203 "packet.rl"
Parser::Control PacketPublicKeySet::data( const char *data, int dlen )
{
#line 386 "packet.cc"
{
cs = packet_public_key_set_start;
}
#line 207 "packet.rl"
const u_char *p = (u_char*)data;
const u_char *pe = (u_char*)data + dlen;
#line 397 "packet.cc"
{
short _widec;
if ( p == pe )
goto _test_eof;
switch ( cs )
{
case 1:
if ( (*p) == 2u )
goto st2;
goto st0;
st0:
cs = 0;
goto _out;
st2:
if ( ++p == pe )
goto _test_eof2;
case 2:
if ( (*p) == 0u )
goto tr2;
goto tr3;
tr2:
#line 175 "common.rl"
{ val = 0; }
goto st3;
st3:
if ( ++p == pe )
goto _test_eof3;
case 3:
#line 426 "packet.cc"
if ( (*p) == 0u )
goto st0;
goto tr4;
tr4:
#line 176 "common.rl"
{ val |= *p; }
#line 180 "common.rl"
{
counter = val;
buf.allocate( val );
dest = (u_char*)buf.data;
}
goto st4;
tr6:
#line 185 "common.rl"
{ *dest++ = *p; }
goto st4;
tr25:
#line 172 "common.rl"
{ val |= *p; }
#line 180 "common.rl"
{
counter = val;
buf.allocate( val );
dest = (u_char*)buf.data;
}
goto st4;
st4:
if ( ++p == pe )
goto _test_eof4;
case 4:
#line 458 "packet.cc"
_widec = (*p);
_widec = (short)(256u + ((*p) - 0u));
if (
#line 153 "common.rl"
--counter ) _widec += 256;
if ( _widec > 511 ) {
if ( 512 <= _widec && _widec <= 767 )
goto tr6;
} else if ( _widec >= 256 )
goto tr5;
goto st0;
tr5:
#line 185 "common.rl"
{ *dest++ = *p; }
#line 191 "packet.rl"
{ priv0.set( buf ); }
goto st5;
st5:
if ( ++p == pe )
goto _test_eof5;
case 5:
#line 480 "packet.cc"
if ( (*p) == 0u )
goto tr7;
goto tr8;
tr7:
#line 175 "common.rl"
{ val = 0; }
goto st6;
st6:
if ( ++p == pe )
goto _test_eof6;
case 6:
#line 492 "packet.cc"
if ( (*p) == 0u )
goto st0;
goto tr9;
tr9:
#line 176 "common.rl"
{ val |= *p; }
#line 180 "common.rl"
{
counter = val;
buf.allocate( val );
dest = (u_char*)buf.data;
}
goto st7;
tr11:
#line 185 "common.rl"
{ *dest++ = *p; }
goto st7;
tr24:
#line 172 "common.rl"
{ val |= *p; }
#line 180 "common.rl"
{
counter = val;
buf.allocate( val );
dest = (u_char*)buf.data;
}
goto st7;
st7:
if ( ++p == pe )
goto _test_eof7;
case 7:
#line 524 "packet.cc"
_widec = (*p);
_widec = (short)(256u + ((*p) - 0u));
if (
#line 153 "common.rl"
--counter ) _widec += 256;
if ( _widec > 511 ) {
if ( 512 <= _widec && _widec <= 767 )
goto tr11;
} else if ( _widec >= 256 )
goto tr10;
goto st0;
tr10:
#line 185 "common.rl"
{ *dest++ = *p; }
#line 192 "packet.rl"
{ priv1.set( buf ); }
goto st8;
st8:
if ( ++p == pe )
goto _test_eof8;
case 8:
#line 546 "packet.cc"
if ( (*p) == 0u )
goto tr12;
goto tr13;
tr12:
#line 175 "common.rl"
{ val = 0; }
goto st9;
st9:
if ( ++p == pe )
goto _test_eof9;
case 9:
#line 558 "packet.cc"
if ( (*p) == 0u )
goto st0;
goto tr14;
tr14:
#line 176 "common.rl"
{ val |= *p; }
#line 180 "common.rl"
{
counter = val;
buf.allocate( val );
dest = (u_char*)buf.data;
}
goto st10;
tr16:
#line 185 "common.rl"
{ *dest++ = *p; }
goto st10;
tr23:
#line 172 "common.rl"
{ val |= *p; }
#line 180 "common.rl"
{
counter = val;
buf.allocate( val );
dest = (u_char*)buf.data;
}
goto st10;
st10:
if ( ++p == pe )
goto _test_eof10;
case 10:
#line 590 "packet.cc"
_widec = (*p);
_widec = (short)(256u + ((*p) - 0u));
if (
#line 153 "common.rl"
--counter ) _widec += 256;
if ( _widec > 511 ) {
if ( 512 <= _widec && _widec <= 767 )
goto tr16;
} else if ( _widec >= 256 )
goto tr15;
goto st0;
tr15:
#line 185 "common.rl"
{ *dest++ = *p; }
#line 193 "packet.rl"
{ priv2.set( buf ); }
goto st11;
st11:
if ( ++p == pe )
goto _test_eof11;
case 11:
#line 612 "packet.cc"
if ( (*p) == 0u )
goto tr17;
goto tr18;
tr17:
#line 175 "common.rl"
{ val = 0; }
goto st12;
st12:
if ( ++p == pe )
goto _test_eof12;
case 12:
#line 624 "packet.cc"
if ( (*p) == 0u )
goto st0;
goto tr19;
tr19:
#line 176 "common.rl"
{ val |= *p; }
#line 180 "common.rl"
{
counter = val;
buf.allocate( val );
dest = (u_char*)buf.data;
}
goto st13;
tr21:
#line 185 "common.rl"
{ *dest++ = *p; }
goto st13;
tr22:
#line 172 "common.rl"
{ val |= *p; }
#line 180 "common.rl"
{
counter = val;
buf.allocate( val );
dest = (u_char*)buf.data;
}
goto st13;
st13:
if ( ++p == pe )
goto _test_eof13;
case 13:
#line 656 "packet.cc"
_widec = (*p);
_widec = (short)(256u + ((*p) - 0u));
if (
#line 153 "common.rl"
--counter ) _widec += 256;
if ( _widec > 511 ) {
if ( 512 <= _widec && _widec <= 767 )
goto tr21;
} else if ( _widec >= 256 )
goto tr20;
goto st0;
tr20:
#line 185 "common.rl"
{ *dest++ = *p; }
#line 194 "packet.rl"
{ priv3.set( buf ); }
#line 196 "packet.rl"
{
debug( DBG_EP, "encryption packet: public_key_set: %ld %ld %ld %ld\n",
priv0.length, priv1.length, priv2.length, priv3.length );
}
goto st18;
st18:
if ( ++p == pe )
goto _test_eof18;
case 18:
#line 683 "packet.cc"
goto st0;
tr18:
#line 171 "common.rl"
{ val = (u_long)*p << 8; }
goto st14;
st14:
if ( ++p == pe )
goto _test_eof14;
case 14:
#line 693 "packet.cc"
goto tr22;
tr13:
#line 171 "common.rl"
{ val = (u_long)*p << 8; }
goto st15;
st15:
if ( ++p == pe )
goto _test_eof15;
case 15:
#line 703 "packet.cc"
goto tr23;
tr8:
#line 171 "common.rl"
{ val = (u_long)*p << 8; }
goto st16;
st16:
if ( ++p == pe )
goto _test_eof16;
case 16:
#line 713 "packet.cc"
goto tr24;
tr3:
#line 171 "common.rl"
{ val = (u_long)*p << 8; }
goto st17;
st17:
if ( ++p == pe )
goto _test_eof17;
case 17:
#line 723 "packet.cc"
goto tr25;
}
_test_eof2: cs = 2; goto _test_eof;
_test_eof3: cs = 3; goto _test_eof;
_test_eof4: cs = 4; goto _test_eof;
_test_eof5: cs = 5; goto _test_eof;
_test_eof6: cs = 6; goto _test_eof;
_test_eof7: cs = 7; goto _test_eof;
_test_eof8: cs = 8; goto _test_eof;
_test_eof9: cs = 9; goto _test_eof;
_test_eof10: cs = 10; goto _test_eof;
_test_eof11: cs = 11; goto _test_eof;
_test_eof12: cs = 12; goto _test_eof;
_test_eof13: cs = 13; goto _test_eof;
_test_eof18: cs = 18; goto _test_eof;
_test_eof14: cs = 14; goto _test_eof;
_test_eof15: cs = 15; goto _test_eof;
_test_eof16: cs = 16; goto _test_eof;
_test_eof17: cs = 17; goto _test_eof;
_test_eof: {}
_out: {}
}
#line 212 "packet.rl"
if ( cs <
#line 751 "packet.cc"
18
#line 213 "packet.rl"
)
throw ParseError( __FILE__, __LINE__ );
return Continue;
}
/*
* Relid Set
*/
Allocated consRelidSet( const RelidSet &relidSet )
{
long length = 1 +
binLength(relidSet.priv0) + binLength(relidSet.priv1) +
binLength(relidSet.priv2) + binLength(relidSet.priv3) +
binLength(relidSet.priv4);
String encPacket( length );
u_char *dest = (u_char*)encPacket.data;
dest = writeType( dest, EP_RELID_SET );
dest = writeBin( dest, relidSet.priv0 );
dest = writeBin( dest, relidSet.priv1 );
dest = writeBin( dest, relidSet.priv2 );
dest = writeBin( dest, relidSet.priv3 );
dest = writeBin( dest, relidSet.priv4 );
return encPacket.relinquish();
}
#line 259 "packet.rl"
#line 789 "packet.cc"
static const int packet_relid_set_start = 1;
static const int packet_relid_set_first_final = 22;
static const int packet_relid_set_error = 0;
static const int packet_relid_set_en_main = 1;
#line 262 "packet.rl"
Parser::Control PacketRelidSet::data( const char *data, int dlen )
{
#line 802 "packet.cc"
{
cs = packet_relid_set_start;
}
#line 266 "packet.rl"
const u_char *p = (u_char*)data;
const u_char *pe = (u_char*)data + dlen;
#line 813 "packet.cc"
{
short _widec;
if ( p == pe )
goto _test_eof;
switch ( cs )
{
case 1:
if ( (*p) == 3u )
goto st2;
goto st0;
st0:
cs = 0;
goto _out;
st2:
if ( ++p == pe )
goto _test_eof2;
case 2:
if ( (*p) == 0u )
goto tr2;
goto tr3;
tr2:
#line 175 "common.rl"
{ val = 0; }
goto st3;
st3:
if ( ++p == pe )
goto _test_eof3;
case 3:
#line 842 "packet.cc"
if ( (*p) == 0u )
goto st0;
goto tr4;
tr4:
#line 176 "common.rl"
{ val |= *p; }
#line 180 "common.rl"
{
counter = val;
buf.allocate( val );
dest = (u_char*)buf.data;
}
goto st4;
tr6:
#line 185 "common.rl"
{ *dest++ = *p; }
goto st4;
tr31:
#line 172 "common.rl"
{ val |= *p; }
#line 180 "common.rl"
{
counter = val;
buf.allocate( val );
dest = (u_char*)buf.data;
}
goto st4;
st4:
if ( ++p == pe )
goto _test_eof4;
case 4:
#line 874 "packet.cc"
_widec = (*p);
_widec = (short)(256u + ((*p) - 0u));
if (
#line 153 "common.rl"
--counter ) _widec += 256;
if ( _widec > 511 ) {
if ( 512 <= _widec && _widec <= 767 )
goto tr6;
} else if ( _widec >= 256 )
goto tr5;
goto st0;
tr5:
#line 185 "common.rl"
{ *dest++ = *p; }
#line 249 "packet.rl"
{ priv0.set( buf ); }
goto st5;
st5:
if ( ++p == pe )
goto _test_eof5;
case 5:
#line 896 "packet.cc"
if ( (*p) == 0u )
goto tr7;
goto tr8;
tr7:
#line 175 "common.rl"
{ val = 0; }
goto st6;
st6:
if ( ++p == pe )
goto _test_eof6;
case 6:
#line 908 "packet.cc"
if ( (*p) == 0u )
goto st0;
goto tr9;
tr9:
#line 176 "common.rl"
{ val |= *p; }
#line 180 "common.rl"
{
counter = val;
buf.allocate( val );
dest = (u_char*)buf.data;
}
goto st7;
tr11:
#line 185 "common.rl"
{ *dest++ = *p; }
goto st7;
tr30:
#line 172 "common.rl"
{ val |= *p; }
#line 180 "common.rl"
{
counter = val;
buf.allocate( val );
dest = (u_char*)buf.data;
}
goto st7;
st7:
if ( ++p == pe )
goto _test_eof7;
case 7:
#line 940 "packet.cc"
_widec = (*p);
_widec = (short)(256u + ((*p) - 0u));
if (
#line 153 "common.rl"
--counter ) _widec += 256;
if ( _widec > 511 ) {
if ( 512 <= _widec && _widec <= 767 )
goto tr11;
} else if ( _widec >= 256 )
goto tr10;
goto st0;
tr10:
#line 185 "common.rl"
{ *dest++ = *p; }
#line 250 "packet.rl"
{ priv1.set( buf ); }
goto st8;
st8:
if ( ++p == pe )
goto _test_eof8;
case 8:
#line 962 "packet.cc"
if ( (*p) == 0u )
goto tr12;
goto tr13;
tr12:
#line 175 "common.rl"
{ val = 0; }
goto st9;
st9:
if ( ++p == pe )
goto _test_eof9;
case 9:
#line 974 "packet.cc"
if ( (*p) == 0u )
goto st0;
goto tr14;
tr14:
#line 176 "common.rl"
{ val |= *p; }
#line 180 "common.rl"
{
counter = val;
buf.allocate( val );
dest = (u_char*)buf.data;
}
goto st10;
tr16:
#line 185 "common.rl"
{ *dest++ = *p; }
goto st10;
tr29:
#line 172 "common.rl"
{ val |= *p; }
#line 180 "common.rl"
{
counter = val;
buf.allocate( val );
dest = (u_char*)buf.data;
}
goto st10;