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Merge #8880: protocol.h: Move MESSAGE_START_SIZE into CMessageHeader

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1df3111 protocol.h: Make enums in GetDataMsg concrete values (Wladimir J. van der Laan)
2c09a52 protocol.h: Move MESSAGE_START_SIZE into CMessageHeader (Wladimir J. van der Laan)
f9bd92d version.h: s/shord/short/ in comment (Wladimir J. van der Laan)
This commit is contained in:
Wladimir J. van der Laan 2016-10-15 10:27:42 +02:00 committed by Alexander Block
parent 005ae79cf3
commit 0f021e55f6
3 changed files with 36 additions and 35 deletions
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2
src/net_processing.cpp
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@ -2323,7 +2323,7 @@ bool ProcessMessages(CNode* pfrom, CConnman& connman, std::atomic<bool>& interru
msg.SetVersion(pfrom->GetRecvVersion());
// Scan for message start
if (memcmp(msg.hdr.pchMessageStart, chainparams.MessageStart(), MESSAGE_START_SIZE) != 0) {
if (memcmp(msg.hdr.pchMessageStart, chainparams.MessageStart(), CMessageHeader::MESSAGE_START_SIZE) != 0) {
LogPrintf("PROCESSMESSAGE: INVALID MESSAGESTART %s peer=%d\n", SanitizeString(msg.hdr.GetCommand()), pfrom->id);
pfrom->fDisconnect = true;
return false;

65
src/protocol.h
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@ -18,8 +18,6 @@
#include <stdint.h>
#include <string>
#define MESSAGE_START_SIZE 4
/** Message header.
* (4) message start.
* (12) command.
@ -29,6 +27,16 @@
class CMessageHeader
{
public:
enum {
MESSAGE_START_SIZE = 4,
COMMAND_SIZE = 12,
MESSAGE_SIZE_SIZE = 4,
CHECKSUM_SIZE = 4,
MESSAGE_SIZE_OFFSET = MESSAGE_START_SIZE + COMMAND_SIZE,
CHECKSUM_OFFSET = MESSAGE_SIZE_OFFSET + MESSAGE_SIZE_SIZE,
HEADER_SIZE = MESSAGE_START_SIZE + COMMAND_SIZE + MESSAGE_SIZE_SIZE + CHECKSUM_SIZE
};
typedef unsigned char MessageStartChars[MESSAGE_START_SIZE];
CMessageHeader(const MessageStartChars& pchMessageStartIn);
@ -48,17 +56,6 @@ public:
READWRITE(FLATDATA(pchChecksum));
}
// TODO: make private (improves encapsulation)
public:
enum {
COMMAND_SIZE = 12,
MESSAGE_SIZE_SIZE = 4,
CHECKSUM_SIZE = 4,
MESSAGE_SIZE_OFFSET = MESSAGE_START_SIZE + COMMAND_SIZE,
CHECKSUM_OFFSET = MESSAGE_SIZE_OFFSET + MESSAGE_SIZE_SIZE,
HEADER_SIZE = MESSAGE_START_SIZE + COMMAND_SIZE + MESSAGE_SIZE_SIZE + CHECKSUM_SIZE
};
char pchMessageStart[MESSAGE_START_SIZE];
char pchCommand[COMMAND_SIZE];
uint32_t nMessageSize;
@ -319,30 +316,34 @@ public:
unsigned int nTime;
};
/** getdata / inv message types.
* These numbers are defined by the protocol. When adding a new value, be sure
* to mention it in the respective BIP.
*/
enum GetDataMsg {
UNDEFINED = 0,
MSG_TX,
MSG_BLOCK,
MSG_TX = 1,
MSG_BLOCK = 2,
// The following can only occur in getdata. Invs always use TX or BLOCK.
MSG_FILTERED_BLOCK,
MSG_FILTERED_BLOCK = 3, //!< Defined in BIP37
// Dash message types
// NOTE: declare non-implmented here, we must keep this enum consistent and backwards compatible
MSG_TXLOCK_REQUEST,
MSG_TXLOCK_VOTE,
MSG_SPORK,
MSG_MASTERNODE_PAYMENT_VOTE,
MSG_MASTERNODE_PAYMENT_BLOCK, // reusing, was MSG_MASTERNODE_SCANNING_ERROR previousely, was NOT used in 12.0
MSG_BUDGET_VOTE, // depreciated since 12.1
MSG_BUDGET_PROPOSAL, // depreciated since 12.1
MSG_BUDGET_FINALIZED, // depreciated since 12.1
MSG_BUDGET_FINALIZED_VOTE, // depreciated since 12.1
MSG_MASTERNODE_QUORUM, // not implemented
MSG_MASTERNODE_ANNOUNCE,
MSG_MASTERNODE_PING,
MSG_DSTX,
MSG_GOVERNANCE_OBJECT,
MSG_GOVERNANCE_OBJECT_VOTE,
MSG_MASTERNODE_VERIFY,
MSG_TXLOCK_REQUEST = 4,
MSG_TXLOCK_VOTE = 5,
MSG_SPORK = 6,
MSG_MASTERNODE_PAYMENT_VOTE = 7,
MSG_MASTERNODE_PAYMENT_BLOCK = 8, // reusing, was MSG_MASTERNODE_SCANNING_ERROR previousely, was NOT used in 12.0
MSG_BUDGET_VOTE = 9, // depreciated since 12.1
MSG_BUDGET_PROPOSAL = 10, // depreciated since 12.1
MSG_BUDGET_FINALIZED = 11, // depreciated since 12.1
MSG_BUDGET_FINALIZED_VOTE = 12, // depreciated since 12.1
MSG_MASTERNODE_QUORUM = 13, // not implemented
MSG_MASTERNODE_ANNOUNCE = 14,
MSG_MASTERNODE_PING = 15,
MSG_DSTX = 16,
MSG_GOVERNANCE_OBJECT = 17,
MSG_GOVERNANCE_OBJECT_VOTE = 18,
MSG_MASTERNODE_VERIFY = 19,
};
/** inv message data */

4
src/validation.cpp
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@ -4102,11 +4102,11 @@ bool LoadExternalBlockFile(const CChainParams& chainparams, FILE* fileIn, CDiskB
unsigned int nSize = 0;
try {
// locate a header
unsigned char buf[MESSAGE_START_SIZE];
unsigned char buf[CMessageHeader::MESSAGE_START_SIZE];
blkdat.FindByte(chainparams.MessageStart()[0]);
nRewind = blkdat.GetPos()+1;
blkdat >> FLATDATA(buf);
if (memcmp(buf, chainparams.MessageStart(), MESSAGE_START_SIZE))
if (memcmp(buf, chainparams.MessageStart(), CMessageHeader::MESSAGE_START_SIZE))
continue;
// read size
blkdat >> nSize;