/bitcoin/src/chainparams.cpp

Source
// Copyright (c) 2010 Satoshi Nakamoto
// Copyright (c) 2009-2022 The Bitcoin Core developers
// Distributed under the MIT software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.

#include <chainparams.h>

#include <chainparamsbase.h>
#include <common/args.h>
#include <consensus/params.h>
#include <deploymentinfo.h>
#include <logging.h>
#include <tinyformat.h>
#include <util/chaintype.h>
#include <util/strencodings.h>
#include <util/string.h>

#include <cassert>
#include <cstdint>
#include <limits>
#include <stdexcept>
#include <vector>

using util::SplitString;

void ReadSigNetArgs(const ArgsManager& args, CChainParams::SigNetOptions& options)
{
    if (!args.GetArgs("-signetseednode").empty()) {
        options.seeds.emplace(args.GetArgs("-signetseednode"));
    }
    if (!args.GetArgs("-signetchallenge").empty()) {
        const auto signet_challenge = args.GetArgs("-signetchallenge");
        if (signet_challenge.size() != 1) {
            throw std::runtime_error("-signetchallenge cannot be multiple values.");
        }
        const auto val{TryParseHex<uint8_t>(signet_challenge[0])};
        if (!val) {
            throw std::runtime_error(strprintf("-signetchallenge must be hex, not '%s'.", signet_challenge[0]));
        }
        options.challenge.emplace(*val);
    }
}

void ReadRegTestArgs(const ArgsManager& args, CChainParams::RegTestOptions& options)
{
    if (auto value = args.GetBoolArg("-fastprune")) options.fastprune = *value;
    if (HasTestOption(args, "bip94")) options.enforce_bip94 = true;

    for (const std::string& arg : args.GetArgs("-testactivationheight")) {
        const auto found{arg.find('@')};
        if (found == std::string::npos) {
            throw std::runtime_error(strprintf("Invalid format (%s) for -testactivationheight=name@height.", arg));
        }

        const auto value{arg.substr(found + 1)};
        const auto height{ToIntegral<int32_t>(value)};
        if (!height || *height < 0 || *height >= std::numeric_limits<int>::max()) {
            throw std::runtime_error(strprintf("Invalid height value (%s) for -testactivationheight=name@height.", arg));
        }

        const auto deployment_name{arg.substr(0, found)};
        if (const auto buried_deployment = GetBuriedDeployment(deployment_name)) {
            options.activation_heights[*buried_deployment] = *height;
        } else {
            throw std::runtime_error(strprintf("Invalid name (%s) for -testactivationheight=name@height.", arg));
        }
    }

    for (const std::string& strDeployment : args.GetArgs("-vbparams")) {
        std::vector<std::string> vDeploymentParams = SplitString(strDeployment, ':');
        if (vDeploymentParams.size() < 3 || 4 < vDeploymentParams.size()) {
            throw std::runtime_error("Version bits parameters malformed, expecting deployment:start:end[:min_activation_height]");
        }
        CChainParams::VersionBitsParameters vbparams{};
        const auto start_time{ToIntegral<int64_t>(vDeploymentParams[1])};
        if (!start_time) {
            throw std::runtime_error(strprintf("Invalid nStartTime (%s)", vDeploymentParams[1]));
        }
        vbparams.start_time = *start_time;
        const auto timeout{ToIntegral<int64_t>(vDeploymentParams[2])};
        if (!timeout) {
            throw std::runtime_error(strprintf("Invalid nTimeout (%s)", vDeploymentParams[2]));
        }
        vbparams.timeout = *timeout;
        if (vDeploymentParams.size() >= 4) {
            const auto min_activation_height{ToIntegral<int64_t>(vDeploymentParams[3])};
            if (!min_activation_height) {
                throw std::runtime_error(strprintf("Invalid min_activation_height (%s)", vDeploymentParams[3]));
            }
            vbparams.min_activation_height = *min_activation_height;
        } else {
            vbparams.min_activation_height = 0;
        }
        bool found = false;
        for (int j=0; j < (int)Consensus::MAX_VERSION_BITS_DEPLOYMENTS; ++j) {
            if (vDeploymentParams[0] == VersionBitsDeploymentInfo[j].name) {
                options.version_bits_parameters[Consensus::DeploymentPos(j)] = vbparams;
                found = true;
                LogPrintf("Setting version bits activation parameters for %s to start=%ld, timeout=%ld, min_activation_height=%d\n", vDeploymentParams[0], vbparams.start_time, vbparams.timeout, vbparams.min_activation_height);
                break;
            }
        }
        if (!found) {
            throw std::runtime_error(strprintf("Invalid deployment (%s)", vDeploymentParams[0]));
        }
    }
}

static std::unique_ptr<const CChainParams> globalChainParams;

const CChainParams &Params() {
    assert(globalChainParams);
    return *globalChainParams;
}

std::unique_ptr<const CChainParams> CreateChainParams(const ArgsManager& args, const ChainType chain)
{
    switch (chain) {
    case ChainType::MAIN:
        return CChainParams::Main();
    case ChainType::TESTNET:
        return CChainParams::TestNet();
    case ChainType::TESTNET4:
        return CChainParams::TestNet4();
    case ChainType::SIGNET: {
        auto opts = CChainParams::SigNetOptions{};
        ReadSigNetArgs(args, opts);
        return CChainParams::SigNet(opts);
    }
    case ChainType::REGTEST: {
        auto opts = CChainParams::RegTestOptions{};
        ReadRegTestArgs(args, opts);
        return CChainParams::RegTest(opts);
    }
    }
    assert(false);
}

void SelectParams(const ChainType chain)
{
    SelectBaseParams(chain);
    globalChainParams = CreateChainParams(gArgs, chain);
}

Line	Count	Source
1		// Copyright (c) 2010 Satoshi Nakamoto
2		// Copyright (c) 2009-2022 The Bitcoin Core developers
3		// Distributed under the MIT software license, see the accompanying
4		// file COPYING or http://www.opensource.org/licenses/mit-license.php.
5
6		#include <chainparams.h>
7
8		#include <chainparamsbase.h>
9		#include <common/args.h>
10		#include <consensus/params.h>
11		#include <deploymentinfo.h>
12		#include <logging.h>
13		#include <tinyformat.h>
14		#include <util/chaintype.h>
15		#include <util/strencodings.h>
16		#include <util/string.h>
17
18		#include <cassert>
19		#include <cstdint>
20		#include <limits>
21		#include <stdexcept>
22		#include <vector>
23
24		using util::SplitString;
25
26		void ReadSigNetArgs(const ArgsManager& args, CChainParams::SigNetOptions& options)
27	11.0k	{
28	11.0k	if (!args.GetArgs("-signetseednode").empty()) { Branch (28:9): [True: 0, False: 11.0k]
29	0	options.seeds.emplace(args.GetArgs("-signetseednode"));
30	0	}
31	11.0k	if (!args.GetArgs("-signetchallenge").empty()) { Branch (31:9): [True: 0, False: 11.0k]
32	0	const auto signet_challenge = args.GetArgs("-signetchallenge");
33	0	if (signet_challenge.size() != 1) { Branch (33:13): [True: 0, False: 0]
34	0	throw std::runtime_error("-signetchallenge cannot be multiple values.");
35	0	}
36	0	const auto val{TryParseHex<uint8_t>(signet_challenge[0])};
37	0	if (!val) { Branch (37:13): [True: 0, False: 0]
38	0	throw std::runtime_error(strprintf("-signetchallenge must be hex, not '%s'.", signet_challenge[0]));
39	0	}
40	0	options.challenge.emplace(*val);
41	0	}
42	11.0k	}
43
44		void ReadRegTestArgs(const ArgsManager& args, CChainParams::RegTestOptions& options)
45	22.1k	{
46	22.1k	if (auto value = args.GetBoolArg("-fastprune")) options.fastprune = *value; Branch (46:14): [True: 0, False: 22.1k]
47	22.1k	if (HasTestOption(args, "bip94")) options.enforce_bip94 = true; Branch (47:9): [True: 0, False: 22.1k]
48
49	22.1k	for (const std::string& arg : args.GetArgs("-testactivationheight")) { Branch (49:33): [True: 0, False: 22.1k]
50	0	const auto found{arg.find('@')};
51	0	if (found == std::string::npos) { Branch (51:13): [True: 0, False: 0]
52	0	throw std::runtime_error(strprintf("Invalid format (%s) for -testactivationheight=name@height.", arg));
53	0	}
54
55	0	const auto value{arg.substr(found + 1)};
56	0	const auto height{ToIntegral<int32_t>(value)};
57	0	if (!height \|\| height < 0 \|\| height >= std::numeric_limits<int>::max()) { Branch (57:13): [True: 0, False: 0] Branch (57:24): [True: 0, False: 0] Branch (57:39): [True: 0, False: 0]
58	0	throw std::runtime_error(strprintf("Invalid height value (%s) for -testactivationheight=name@height.", arg));
59	0	}
60
61	0	const auto deployment_name{arg.substr(0, found)};
62	0	if (const auto buried_deployment = GetBuriedDeployment(deployment_name)) { Branch (62:24): [True: 0, False: 0]
63	0	options.activation_heights[buried_deployment] = height;
64	0	} else {
65	0	throw std::runtime_error(strprintf("Invalid name (%s) for -testactivationheight=name@height.", arg));
66	0	}
67	0	}
68
69	22.1k	for (const std::string& strDeployment : args.GetArgs("-vbparams")) { Branch (69:43): [True: 0, False: 22.1k]
70	0	std::vector<std::string> vDeploymentParams = SplitString(strDeployment, ':');
71	0	if (vDeploymentParams.size() < 3 \|\| 4 < vDeploymentParams.size()) { Branch (71:13): [True: 0, False: 0] Branch (71:45): [True: 0, False: 0]
72	0	throw std::runtime_error("Version bits parameters malformed, expecting deployment:start:end[:min_activation_height]");
73	0	}
74	0	CChainParams::VersionBitsParameters vbparams{};
75	0	const auto start_time{ToIntegral<int64_t>(vDeploymentParams[1])};
76	0	if (!start_time) { Branch (76:13): [True: 0, False: 0]
77	0	throw std::runtime_error(strprintf("Invalid nStartTime (%s)", vDeploymentParams[1]));
78	0	}
79	0	vbparams.start_time = *start_time;
80	0	const auto timeout{ToIntegral<int64_t>(vDeploymentParams[2])};
81	0	if (!timeout) { Branch (81:13): [True: 0, False: 0]
82	0	throw std::runtime_error(strprintf("Invalid nTimeout (%s)", vDeploymentParams[2]));
83	0	}
84	0	vbparams.timeout = *timeout;
85	0	if (vDeploymentParams.size() >= 4) { Branch (85:13): [True: 0, False: 0]
86	0	const auto min_activation_height{ToIntegral<int64_t>(vDeploymentParams[3])};
87	0	if (!min_activation_height) { Branch (87:17): [True: 0, False: 0]
88	0	throw std::runtime_error(strprintf("Invalid min_activation_height (%s)", vDeploymentParams[3]));
89	0	}
90	0	vbparams.min_activation_height = *min_activation_height;
91	0	} else {
92	0	vbparams.min_activation_height = 0;
93	0	}
94	0	bool found = false;
95	0	for (int j=0; j < (int)Consensus::MAX_VERSION_BITS_DEPLOYMENTS; ++j) { Branch (95:23): [True: 0, False: 0]
96	0	if (vDeploymentParams[0] == VersionBitsDeploymentInfo[j].name) { Branch (96:17): [True: 0, False: 0]
97	0	options.version_bits_parameters[Consensus::DeploymentPos(j)] = vbparams;
98	0	found = true;
99	0	LogPrintf("Setting version bits activation parameters for %s to start=%ld, timeout=%ld, min_activation_height=%d\n", vDeploymentParams[0], vbparams.start_time, vbparams.timeout, vbparams.min_activation_height);
100	0	break;
101	0	}
102	0	}
103	0	if (!found) { Branch (103:13): [True: 0, False: 0]
104	0	throw std::runtime_error(strprintf("Invalid deployment (%s)", vDeploymentParams[0]));
105	0	}
106	0	}
107	22.1k	}
108
109		static std::unique_ptr<const CChainParams> globalChainParams;
110
111	3.38M	const CChainParams &Params() {
112	3.38M	assert(globalChainParams); Branch (112:5): [True: 3.38M, False: 0]
113	3.38M	return *globalChainParams;
114	3.38M	}
115
116		std::unique_ptr<const CChainParams> CreateChainParams(const ArgsManager& args, const ChainType chain)
117	66.5k	{
118	66.5k	switch (chain) { Branch (118:13): [True: 0, False: 66.5k]
119	11.0k	case ChainType::MAIN: Branch (119:5): [True: 11.0k, False: 55.4k]
120	11.0k	return CChainParams::Main();
121	11.0k	case ChainType::TESTNET: Branch (121:5): [True: 11.0k, False: 55.4k]
122	11.0k	return CChainParams::TestNet();
123	11.0k	case ChainType::TESTNET4: Branch (123:5): [True: 11.0k, False: 55.4k]
124	11.0k	return CChainParams::TestNet4();
125	11.0k	case ChainType::SIGNET: { Branch (125:5): [True: 11.0k, False: 55.4k]
126	11.0k	auto opts = CChainParams::SigNetOptions{};
127	11.0k	ReadSigNetArgs(args, opts);
128	11.0k	return CChainParams::SigNet(opts);
129	0	}
130	22.1k	case ChainType::REGTEST: { Branch (130:5): [True: 22.1k, False: 44.3k]
131	22.1k	auto opts = CChainParams::RegTestOptions{};
132	22.1k	ReadRegTestArgs(args, opts);
133	22.1k	return CChainParams::RegTest(opts);
134	0	}
135	66.5k	}
136	66.5k	assert(false); Branch (136:5): [Folded - Ignored]
137	0	}
138
139		void SelectParams(const ChainType chain)
140	11.0k	{
141	11.0k	SelectBaseParams(chain);
142	11.0k	globalChainParams = CreateChainParams(gArgs, chain);
143	11.0k	}

Coverage Report

Created: 2025-06-10 13:21