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refactor: replace hardcoded number, introduce 'MAX_BARE_MULTISIG_PUBKEYS_NUM'

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furszy 2024-12-02 11:12:50 -05:00
parent 733317ba94
commit e22aa8b22d
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3 changed files with 5 additions and 3 deletions
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2
src/policy/policy.cpp
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@ -87,7 +87,7 @@ bool IsStandard(const CScript& scriptPubKey, const std::optional<unsigned>& max_
unsigned char m = vSolutions.front()[0];
unsigned char n = vSolutions.back()[0];
// Support up to x-of-3 multisig txns as standard
if (n < 1 || n > 3)
if (n < 1 || n > MAX_BARE_MULTISIG_PUBKEYS_NUM)
return false;
if (m < 1 || m > n)
return false;

2
src/policy/policy.h
View file

@ -37,6 +37,8 @@ static constexpr unsigned int DEFAULT_INCREMENTAL_RELAY_FEE{1000};
static constexpr unsigned int DEFAULT_BYTES_PER_SIGOP{20};
/** Default for -permitbaremultisig */
static constexpr bool DEFAULT_PERMIT_BAREMULTISIG{true};
/** The maximum number of pubkeys in a bare multisig output script */
static constexpr unsigned int MAX_BARE_MULTISIG_PUBKEYS_NUM{3};
/** The maximum number of witness stack items in a standard P2WSH script */
static constexpr unsigned int MAX_STANDARD_P2WSH_STACK_ITEMS{100};
/** The maximum size in bytes of each witness stack item in a standard P2WSH script */

4
src/script/descriptor.cpp
View file

@ -1852,8 +1852,8 @@ std::vector<std::unique_ptr<DescriptorImpl>> ParseScript(uint32_t& key_exp_index
return {};
}
if (ctx == ParseScriptContext::TOP) {
if (providers.size() > 3) {
error = strprintf("Cannot have %u pubkeys in bare multisig; only at most 3 pubkeys", providers.size());
if (providers.size() > MAX_BARE_MULTISIG_PUBKEYS_NUM) {
error = strprintf("Cannot have %u pubkeys in bare multisig; only at most %d pubkeys", providers.size(), MAX_BARE_MULTISIG_PUBKEYS_NUM);
return {};
}
}