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Introduce new V4 format addrman

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92617b7a75 effectively changed the
on-disk format in an incompatible way: old deserializers cannot
deal with multiple entries for the same IP.

Introduce a V4_MULTIPORT format, and increment the compatibility base,
so that old versions correctly recognize it as an incompatible future
version.
This commit is contained in:
Pieter Wuille
2021-10-25 11:09:30 -04:00
parent 22a9018649
commit d891ae7681
3 changed files with 5 additions and 4 deletions
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3
src/addrman_impl.h
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@@ -157,6 +157,7 @@ private:
V1_DETERMINISTIC = 1, //!< for pre-asmap files
V2_ASMAP = 2, //!< for files including asmap version
V3_BIP155 = 3, //!< same as V2_ASMAP plus addresses are in BIP155 format
V4_MULTIPORT = 4, //!< adds support for multiple ports per IP
};
//! The maximum format this software knows it can unserialize. Also, we always serialize
@@ -164,7 +165,7 @@ private:
//! The format (first byte in the serialized stream) can be higher than this and
//! still this software may be able to unserialize the file - if the second byte
//! (see `lowest_compatible` in `Unserialize()`) is less or equal to this.
static constexpr Format FILE_FORMAT = Format::V3_BIP155;
static constexpr Format FILE_FORMAT = Format::V4_MULTIPORT;
//! The initial value of a field that is incremented every time an incompatible format
//! change is made (such that old software versions would not be able to parse and