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Merge #19818: p2p: change CInv::type from int to uint32_t, fix UBSan warning

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7984c39be1 test framework: serialize/deserialize inv type as unsigned int (Jon Atack)
407175e0c2 p2p: change CInv::type from int to uint32_t (Jon Atack)

Pull request description:

  Fixes UBSan implicit-integer-sign-change issue per https://github.com/bitcoin/bitcoin/pull/19610#issuecomment-680686460.

  Credit to Crypt-iQ for finding and reporting the issue and to vasild for the original review suggestion in https://github.com/bitcoin/bitcoin/pull/19590#pullrequestreview-455788826.

  Closes #19678.

ACKs for top commit:
  laanwj:
    ACK 7984c39be1
  MarcoFalke:
    ACK 7984c39be1 🌻
  vasild:
    ACK 7984c39be

Tree-SHA512: 59f3a75f40ce066ca6f0bb1927197254238302b4073af1574bdbfe6ed580876437be804be4e47d51467d604f0d9e3a5875159f7f2edbb2351fdb2bb9465100b5
This commit is contained in:
Wladimir J. van der Laan 2020-09-03 17:23:29 +02:00
parent 69a13eb246 7984c39be1
commit bd60a9a8ed
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GPG key ID: 1E4AED62986CD25D
3 changed files with 7 additions and 7 deletions
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2
src/protocol.cpp
View file

@ -163,7 +163,7 @@ CInv::CInv()
hash.SetNull();
}
CInv::CInv(int typeIn, const uint256& hashIn) : type(typeIn), hash(hashIn) {}
CInv::CInv(uint32_t typeIn, const uint256& hashIn) : type(typeIn), hash(hashIn) {}
bool operator<(const CInv& a, const CInv& b)
{

4
src/protocol.h
View file

@ -408,7 +408,7 @@ class CInv
{
public:
CInv();
CInv(int typeIn, const uint256& hashIn);
CInv(uint32_t typeIn, const uint256& hashIn);
SERIALIZE_METHODS(CInv, obj) { READWRITE(obj.type, obj.hash); }
@ -435,7 +435,7 @@ public:
return type == MSG_BLOCK || type == MSG_FILTERED_BLOCK || type == MSG_CMPCT_BLOCK || type == MSG_WITNESS_BLOCK;
}
int type;
uint32_t type;
uint256 hash;
};

8
test/functional/test_framework/messages.py
View file

@ -245,8 +245,8 @@ class CInv:
MSG_TX | MSG_WITNESS_FLAG: "WitnessTx",
MSG_BLOCK | MSG_WITNESS_FLAG: "WitnessBlock",
MSG_FILTERED_BLOCK: "filtered Block",
4: "CompactBlock",
5: "WTX",
MSG_CMPCT_BLOCK: "CompactBlock",
MSG_WTX: "WTX",
}
def __init__(self, t=0, h=0):
@ -254,12 +254,12 @@ class CInv:
self.hash = h
def deserialize(self, f):
self.type = struct.unpack("<i", f.read(4))[0]
self.type = struct.unpack("<I", f.read(4))[0]
self.hash = deser_uint256(f)
def serialize(self):
r = b""
r += struct.pack("<i", self.type)
r += struct.pack("<I", self.type)
r += ser_uint256(self.hash)
return r