{ "contractName": "DNSSECImpl", "abi": [ { "constant": false, "inputs": [ { "name": "newOwner", "type": "address" } ], "name": "setOwner", "outputs": [], "payable": false, "stateMutability": "nonpayable", "type": "function" }, { "constant": true, "inputs": [ { "name": "", "type": "uint8" } ], "name": "digests", "outputs": [ { "name": "", "type": "address" } ], "payable": false, "stateMutability": "view", "type": "function" }, { "constant": true, "inputs": [], "name": "owner", "outputs": [ { "name": "", "type": "address" } ], "payable": false, "stateMutability": "view", "type": "function" }, { "constant": true, "inputs": [], "name": "anchors", "outputs": [ { "name": "", "type": "bytes" } ], "payable": false, "stateMutability": "view", "type": "function" }, { "constant": true, "inputs": [ { "name": "", "type": "uint8" } ], "name": "nsec3Digests", "outputs": [ { "name": "", "type": "address" } ], "payable": false, "stateMutability": "view", "type": "function" }, { "constant": true, "inputs": [ { "name": "", "type": "uint8" } ], "name": "algorithms", "outputs": [ { "name": "", "type": "address" } ], "payable": false, "stateMutability": "view", "type": "function" }, { "inputs": [ { "name": "_anchors", "type": "bytes" } ], "payable": false, "stateMutability": "nonpayable", "type": "constructor" }, { "anonymous": false, "inputs": [ { "indexed": false, "name": "t", "type": "uint256" } ], "name": "Test", "type": "event" }, { "anonymous": false, "inputs": [], "name": "Marker", "type": "event" }, { "anonymous": false, "inputs": [ { "indexed": false, "name": "id", "type": "uint8" }, { "indexed": false, "name": "addr", "type": "address" } ], "name": "AlgorithmUpdated", "type": "event" }, { "anonymous": false, "inputs": [ { "indexed": false, "name": "id", "type": "uint8" }, { "indexed": false, "name": "addr", "type": "address" } ], "name": "DigestUpdated", "type": "event" }, { "anonymous": false, "inputs": [ { "indexed": false, "name": "id", "type": "uint8" }, { "indexed": false, "name": "addr", "type": "address" } ], "name": "NSEC3DigestUpdated", "type": "event" }, { "anonymous": false, "inputs": [ { "indexed": false, "name": "name", "type": "bytes" }, { "indexed": false, "name": "rrset", "type": "bytes" } ], "name": "RRSetUpdated", "type": "event" }, { "constant": false, "inputs": [ { "name": "id", "type": "uint8" }, { "name": "algo", "type": "address" } ], "name": "setAlgorithm", "outputs": [], "payable": false, "stateMutability": "nonpayable", "type": "function" }, { "constant": false, "inputs": [ { "name": "id", "type": "uint8" }, { "name": "digest", "type": "address" } ], "name": "setDigest", "outputs": [], "payable": false, "stateMutability": "nonpayable", "type": "function" }, { "constant": false, "inputs": [ { "name": "id", "type": "uint8" }, { "name": "digest", "type": "address" } ], "name": "setNSEC3Digest", "outputs": [], "payable": false, "stateMutability": "nonpayable", "type": "function" }, { "constant": false, "inputs": [ { "name": "data", "type": "bytes" }, { "name": "_proof", "type": "bytes" } ], "name": "submitRRSets", "outputs": [ { "name": "", "type": "bytes" } ], "payable": false, "stateMutability": "nonpayable", "type": "function" }, { "constant": false, "inputs": [ { "name": "input", "type": "bytes" }, { "name": "sig", "type": "bytes" }, { "name": "proof", "type": "bytes" } ], "name": "submitRRSet", "outputs": [ { "name": "", "type": "bytes" } ], "payable": false, "stateMutability": "nonpayable", "type": "function" }, { "constant": false, "inputs": [ { "name": "deleteType", "type": "uint16" }, { "name": "deleteName", "type": "bytes" }, { "name": "nsec", "type": "bytes" }, { "name": "sig", "type": "bytes" }, { "name": "proof", "type": "bytes" } ], "name": "deleteRRSet", "outputs": [], "payable": false, "stateMutability": "nonpayable", "type": "function" }, { "constant": true, "inputs": [ { "name": "dnstype", "type": "uint16" }, { "name": "name", "type": "bytes" } ], "name": "rrdata", "outputs": [ { "name": 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"source": "pragma solidity ^0.5.0;\n\nimport \"./Owned.sol\";\nimport \"./BytesUtils.sol\";\nimport \"./RRUtils.sol\";\nimport \"./DNSSEC.sol\";\nimport \"./algorithms/Algorithm.sol\";\nimport \"./digests/Digest.sol\";\nimport \"./nsec3digests/NSEC3Digest.sol\";\nimport \"@ensdomains/buffer/contracts/Buffer.sol\";\n\n/*\n * @dev An oracle contract that verifies and stores DNSSEC-validated DNS records.\n *\n * TODO: Support for NSEC3 records\n * TODO: Use 'serial number math' for inception/expiration\n */\ncontract DNSSECImpl is DNSSEC, Owned {\n using Buffer for Buffer.buffer;\n using BytesUtils for bytes;\n using RRUtils for *;\n\n uint16 constant DNSCLASS_IN = 1;\n\n uint16 constant DNSTYPE_DS = 43;\n uint16 constant DNSTYPE_RRSIG = 46;\n uint16 constant DNSTYPE_NSEC = 47;\n uint16 constant DNSTYPE_DNSKEY = 48;\n uint16 constant DNSTYPE_NSEC3 = 50;\n\n uint constant DS_KEY_TAG = 0;\n uint constant DS_ALGORITHM = 2;\n uint constant DS_DIGEST_TYPE = 3;\n uint constant DS_DIGEST = 4;\n\n uint constant RRSIG_TYPE = 0;\n uint constant RRSIG_ALGORITHM = 2;\n uint constant RRSIG_LABELS = 3;\n uint constant RRSIG_TTL = 4;\n uint constant RRSIG_EXPIRATION = 8;\n uint constant RRSIG_INCEPTION = 12;\n uint constant RRSIG_KEY_TAG = 16;\n uint constant RRSIG_SIGNER_NAME = 18;\n\n uint constant DNSKEY_FLAGS = 0;\n uint constant DNSKEY_PROTOCOL = 2;\n uint constant DNSKEY_ALGORITHM = 3;\n uint constant DNSKEY_PUBKEY = 4;\n\n uint constant DNSKEY_FLAG_ZONEKEY = 0x100;\n\n uint constant NSEC3_HASH_ALGORITHM = 0;\n uint constant NSEC3_FLAGS = 1;\n uint constant NSEC3_ITERATIONS = 2;\n uint constant NSEC3_SALT_LENGTH = 4;\n uint constant NSEC3_SALT = 5;\n\n uint8 constant ALGORITHM_RSASHA256 = 8;\n\n uint8 constant DIGEST_ALGORITHM_SHA256 = 2;\n\n struct RRSet {\n uint32 inception;\n uint64 inserted;\n bytes20 hash;\n }\n\n // (name, type) => RRSet\n mapping (bytes32 => mapping(uint16 => RRSet)) rrsets;\n\n bytes public anchors;\n\n mapping (uint8 => Algorithm) public algorithms;\n mapping (uint8 => Digest) public digests;\n mapping (uint8 => NSEC3Digest) public nsec3Digests;\n\n event Test(uint t);\n event Marker();\n\n /**\n * @dev Constructor.\n * @param _anchors The binary format RR entries for the root DS records.\n */\n constructor(bytes memory _anchors) public {\n // Insert the 'trust anchors' - the key hashes that start the chain\n // of trust for all other records.\n anchors = _anchors;\n rrsets[keccak256(hex\"00\")][DNSTYPE_DS] = RRSet({\n inception: uint32(0),\n inserted: uint64(now),\n hash: bytes20(keccak256(anchors))\n });\n emit RRSetUpdated(hex\"00\", anchors);\n }\n\n /**\n * @dev Sets the contract address for a signature verification algorithm.\n * Callable only by the owner.\n * @param id The algorithm ID\n * @param algo The address of the algorithm contract.\n */\n function setAlgorithm(uint8 id, Algorithm algo) public owner_only {\n algorithms[id] = algo;\n emit AlgorithmUpdated(id, address(algo));\n }\n\n /**\n * @dev Sets the contract address for a digest verification algorithm.\n * Callable only by the owner.\n * @param id The digest ID\n * @param digest The address of the digest contract.\n */\n function setDigest(uint8 id, Digest digest) public owner_only {\n digests[id] = digest;\n emit DigestUpdated(id, address(digest));\n }\n\n /**\n * @dev Sets the contract address for an NSEC3 digest algorithm.\n * Callable only by the owner.\n * @param id The digest ID\n * @param digest The address of the digest contract.\n */\n function setNSEC3Digest(uint8 id, NSEC3Digest digest) public owner_only {\n nsec3Digests[id] = digest;\n emit NSEC3DigestUpdated(id, address(digest));\n }\n\n /**\n * @dev Submits multiple RRSets\n * @param data The data to submit, as a series of chunks. Each chunk is\n * in the format \n * @param _proof The DNSKEY or DS to validate the first signature against.\n * @return The last RRSET submitted.\n */\n function submitRRSets(bytes calldata data, bytes calldata _proof) external returns (bytes memory) {\n uint offset = 0;\n bytes memory proof = _proof;\n while(offset < data.length) {\n bytes memory input = data.substring(offset + 2, data.readUint16(offset));\n offset += input.length + 2;\n bytes memory sig = data.substring(offset + 2, data.readUint16(offset));\n offset += sig.length + 2;\n proof = _submitRRSet(input, sig, proof);\n }\n return proof;\n }\n\n /**\n * @dev Submits a signed set of RRs to the oracle.\n *\n * RRSETs are only accepted if they are signed with a key that is already\n * trusted, or if they are self-signed, and the signing key is identified by\n * a DS record that is already trusted.\n *\n * @param input The signed RR set. This is in the format described in section\n * 5.3.2 of RFC4035: The RRDATA section from the RRSIG without the signature\n * data, followed by a series of canonicalised RR records that the signature\n * applies to.\n * @param sig The signature data from the RRSIG record.\n * @param proof The DNSKEY or DS to validate the signature against. Must Already\n * have been submitted and proved previously.\n */\n function submitRRSet(bytes calldata input, bytes calldata sig, bytes calldata proof)\n external\n returns (bytes memory)\n {\n return _submitRRSet(input, sig, proof);\n }\n\n /**\n * @dev Deletes an RR from the oracle.\n *\n * @param deleteType The DNS record type to delete.\n * @param deleteName which you want to delete\n * @param nsec The signed NSEC RRset. This is in the format described in section\n * 5.3.2 of RFC4035: The RRDATA section from the RRSIG without the signature\n * data, followed by a series of canonicalised RR records that the signature\n * applies to.\n */\n function deleteRRSet(uint16 deleteType, bytes calldata deleteName, bytes calldata nsec, bytes calldata sig, bytes calldata proof)\n external\n {\n bytes memory nsecName;\n bytes memory rrs;\n (nsecName, rrs) = validateSignedSet(nsec, sig, proof);\n\n // Don't let someone use an old proof to delete a new name\n require(rrsets[keccak256(deleteName)][deleteType].inception <= nsec.readUint32(RRSIG_INCEPTION));\n\n for (RRUtils.RRIterator memory iter = rrs.iterateRRs(0); !iter.done(); iter.next()) {\n // We're dealing with three names here:\n // - deleteName is the name the user wants us to delete\n // - nsecName is the owner name of the NSEC record\n // - nextName is the next name specified in the NSEC record\n //\n // And three cases:\n // - deleteName equals nsecName, in which case we can delete the\n // record if it's not in the type bitmap.\n // - nextName comes after nsecName, in which case we can delete\n // the record if deleteName comes between nextName and nsecName.\n // - nextName comes before nsecName, in which case nextName is the\n // zone apez, and deleteName must come after nsecName.\n\n if(iter.dnstype == DNSTYPE_NSEC) {\n checkNsecName(iter, nsecName, deleteName, deleteType);\n } else if(iter.dnstype == DNSTYPE_NSEC3) {\n checkNsec3Name(iter, nsecName, deleteName, deleteType);\n } else {\n revert(\"Unrecognised record type\");\n }\n\n delete rrsets[keccak256(deleteName)][deleteType];\n return;\n }\n // This should never reach.\n revert();\n }\n\n function checkNsecName(RRUtils.RRIterator memory iter, bytes memory nsecName, bytes memory deleteName, uint16 deleteType) private pure {\n uint rdataOffset = iter.rdataOffset;\n uint nextNameLength = iter.data.nameLength(rdataOffset);\n uint rDataLength = iter.nextOffset - iter.rdataOffset;\n\n // We assume that there is always typed bitmap after the next domain name\n require(rDataLength > nextNameLength);\n\n int compareResult = deleteName.compareNames(nsecName);\n if(compareResult == 0) {\n // Name to delete is on the same label as the NSEC record\n require(!iter.data.checkTypeBitmap(rdataOffset + nextNameLength, deleteType));\n } else {\n // First check if the NSEC next name comes after the NSEC name.\n bytes memory nextName = iter.data.substring(rdataOffset,nextNameLength);\n // deleteName must come after nsecName\n require(compareResult > 0);\n if(nsecName.compareNames(nextName) < 0) {\n // deleteName must also come before nextName\n require(deleteName.compareNames(nextName) < 0);\n }\n }\n }\n\n function checkNsec3Name(RRUtils.RRIterator memory iter, bytes memory nsecName, bytes memory deleteName, uint16 deleteType) private view {\n uint16 iterations = iter.data.readUint16(iter.rdataOffset + NSEC3_ITERATIONS);\n uint8 saltLength = iter.data.readUint8(iter.rdataOffset + NSEC3_SALT_LENGTH);\n bytes memory salt = iter.data.substring(iter.rdataOffset + NSEC3_SALT, saltLength);\n bytes32 deleteNameHash = nsec3Digests[iter.data.readUint8(iter.rdataOffset)].hash(salt, deleteName, iterations);\n\n uint8 nextLength = iter.data.readUint8(iter.rdataOffset + NSEC3_SALT + saltLength);\n require(nextLength <= 32);\n bytes32 nextNameHash = iter.data.readBytesN(iter.rdataOffset + NSEC3_SALT + saltLength + 1, nextLength);\n\n bytes32 nsecNameHash = nsecName.base32HexDecodeWord(1, uint(nsecName.readUint8(0)));\n\n if(deleteNameHash == nsecNameHash) {\n // Name to delete is on the same label as the NSEC record\n require(!iter.data.checkTypeBitmap(iter.rdataOffset + NSEC3_SALT + saltLength + 1 + nextLength, deleteType));\n } else {\n // deleteName must come after nsecName\n require(deleteNameHash > nsecNameHash);\n // Check if the NSEC next name comes after the NSEC name.\n if(nextNameHash > nsecNameHash) {\n // deleteName must come also come before nextName\n require(deleteNameHash < nextNameHash);\n }\n }\n }\n\n /**\n * @dev Returns data about the RRs (if any) known to this oracle with the provided type and name.\n * @param dnstype The DNS record type to query.\n * @param name The name to query, in DNS label-sequence format.\n * @return inception The unix timestamp at which the signature for this RRSET was created.\n * @return inserted The unix timestamp at which this RRSET was inserted into the oracle.\n * @return hash The hash of the RRset that was inserted.\n */\n function rrdata(uint16 dnstype, bytes calldata name) external view returns (uint32, uint64, bytes20) {\n RRSet storage result = rrsets[keccak256(name)][dnstype];\n return (result.inception, result.inserted, result.hash);\n }\n\n function _submitRRSet(bytes memory input, bytes memory sig, bytes memory proof) internal returns (bytes memory) {\n bytes memory name;\n bytes memory rrs;\n (name, rrs) = validateSignedSet(input, sig, proof);\n\n uint32 inception = input.readUint32(RRSIG_INCEPTION);\n uint16 typecovered = input.readUint16(RRSIG_TYPE);\n\n RRSet storage set = rrsets[keccak256(name)][typecovered];\n if (set.inserted > 0) {\n // To replace an existing rrset, the signature must be at least as new\n require(inception >= set.inception);\n }\n\n if (set.hash == keccak256(rrs)) {\n // Already inserted!\n return rrs;\n }\n\n rrsets[keccak256(name)][typecovered] = RRSet({\n inception: inception,\n inserted: uint64(now),\n hash: bytes20(keccak256(rrs))\n });\n\n emit RRSetUpdated(name, rrs);\n\n return rrs;\n }\n\n /**\n * @dev Submits a signed set of RRs to the oracle.\n *\n * RRSETs are only accepted if they are signed with a key that is already\n * trusted, or if they are self-signed, and the signing key is identified by\n * a DS record that is already trusted.\n *\n * @param input The signed RR set. This is in the format described in section\n * 5.3.2 of RFC4035: The RRDATA section from the RRSIG without the signature\n * data, followed by a series of canonicalised RR records that the signature\n * applies to.\n * @param sig The signature data from the RRSIG record.\n * @param proof The DNSKEY or DS to validate the signature against. Must Already\n * have been submitted and proved previously.\n */\n function validateSignedSet(bytes memory input, bytes memory sig, bytes memory proof) internal returns(bytes memory name, bytes memory rrs) {\n require(validProof(input.readName(RRSIG_SIGNER_NAME), proof));\n\n uint32 inception = input.readUint32(RRSIG_INCEPTION);\n uint32 expiration = input.readUint32(RRSIG_EXPIRATION);\n uint16 typecovered = input.readUint16(RRSIG_TYPE);\n uint8 labels = input.readUint8(RRSIG_LABELS);\n\n // Extract the RR data\n uint rrdataOffset = input.nameLength(RRSIG_SIGNER_NAME) + 18;\n rrs = input.substring(rrdataOffset, input.length - rrdataOffset);\n\n // Do some basic checks on the RRs and extract the name\n name = validateRRs(rrs, typecovered);\n require(name.labelCount(0) == labels);\n\n // TODO: Check inception and expiration using mod2^32 math\n\n // o The validator's notion of the current time MUST be less than or\n // equal to the time listed in the RRSIG RR's Expiration field.\n require(expiration > now);\n\n // o The validator's notion of the current time MUST be greater than or\n // equal to the time listed in the RRSIG RR's Inception field.\n require(inception < now);\n\n // Validate the signature\n verifySignature(name, input, sig, proof);\n\n return (name, rrs);\n }\n\n function validProof(bytes memory name, bytes memory proof) internal view returns(bool) {\n uint16 dnstype = proof.readUint16(proof.nameLength(0));\n return rrsets[keccak256(name)][dnstype].hash == bytes20(keccak256(proof));\n }\n\n /**\n * @dev Validates a set of RRs.\n * @param data The RR data.\n * @param typecovered The type covered by the RRSIG record.\n */\n function validateRRs(bytes memory data, uint16 typecovered) internal pure returns (bytes memory name) {\n // Iterate over all the RRs\n for (RRUtils.RRIterator memory iter = data.iterateRRs(0); !iter.done(); iter.next()) {\n // We only support class IN (Internet)\n require(iter.class == DNSCLASS_IN);\n\n if(name.length == 0) {\n name = iter.name();\n } else {\n // Name must be the same on all RRs\n require(name.length == data.nameLength(iter.offset));\n require(name.equals(0, data, iter.offset, name.length));\n }\n\n // o The RRSIG RR's Type Covered field MUST equal the RRset's type.\n require(iter.dnstype == typecovered);\n }\n }\n\n /**\n * @dev Performs signature verification.\n *\n * Throws or reverts if unable to verify the record.\n *\n * @param name The name of the RRSIG record, in DNS label-sequence format.\n * @param data The original data to verify.\n * @param sig The signature data.\n */\n function verifySignature(bytes memory name, bytes memory data, bytes memory sig, bytes memory proof) internal view {\n uint signerNameLength = data.nameLength(RRSIG_SIGNER_NAME);\n\n // o The RRSIG RR's Signer's Name field MUST be the name of the zone\n // that contains the RRset.\n require(signerNameLength <= name.length);\n require(data.equals(RRSIG_SIGNER_NAME, name, name.length - signerNameLength, signerNameLength));\n\n // Set the return offset to point at the first RR\n uint offset = 18 + signerNameLength;\n\n // Check the proof\n uint16 dnstype = proof.readUint16(proof.nameLength(0));\n if (dnstype == DNSTYPE_DS) {\n require(verifyWithDS(data, sig, offset, proof));\n } else if (dnstype == DNSTYPE_DNSKEY) {\n require(verifyWithKnownKey(data, sig, proof));\n } else {\n revert(\"Unsupported proof record type\");\n }\n }\n\n /**\n * @dev Attempts to verify a signed RRSET against an already known public key.\n * @param data The original data to verify.\n * @param sig The signature data.\n * @return True if the RRSET could be verified, false otherwise.\n */\n function verifyWithKnownKey(bytes memory data, bytes memory sig, bytes memory proof) internal view returns(bool) {\n uint signerNameLength = data.nameLength(RRSIG_SIGNER_NAME);\n\n // Extract algorithm and keytag\n uint8 algorithm = data.readUint8(RRSIG_ALGORITHM);\n uint16 keytag = data.readUint16(RRSIG_KEY_TAG);\n\n for (RRUtils.RRIterator memory iter = proof.iterateRRs(0); !iter.done(); iter.next()) {\n // Check the DNSKEY's owner name matches the signer name on the RRSIG\n require(proof.nameLength(0) == signerNameLength);\n require(proof.equals(0, data, RRSIG_SIGNER_NAME, signerNameLength));\n if (verifySignatureWithKey(iter.rdata(), algorithm, keytag, data, sig)) {\n return true;\n }\n }\n\n return false;\n }\n\n /**\n * @dev Attempts to verify a signed RRSET against an already known public key.\n * @param data The original data to verify.\n * @param sig The signature data.\n * @param offset The offset from the start of the data to the first RR.\n * @return True if the RRSET could be verified, false otherwise.\n */\n function verifyWithDS(bytes memory data, bytes memory sig, uint offset, bytes memory proof) internal view returns(bool) {\n // Extract algorithm and keytag\n uint8 algorithm = data.readUint8(RRSIG_ALGORITHM);\n uint16 keytag = data.readUint16(RRSIG_KEY_TAG);\n\n // Perhaps it's self-signed and verified by a DS record?\n for (RRUtils.RRIterator memory iter = data.iterateRRs(offset); !iter.done(); iter.next()) {\n if (iter.dnstype != DNSTYPE_DNSKEY) {\n return false;\n }\n\n bytes memory keyrdata = iter.rdata();\n if (verifySignatureWithKey(keyrdata, algorithm, keytag, data, sig)) {\n // It's self-signed - look for a DS record to verify it.\n return verifyKeyWithDS(iter.name(), keyrdata, keytag, algorithm, proof);\n }\n }\n\n return false;\n }\n\n /**\n * @dev Attempts to verify some data using a provided key and a signature.\n * @param keyrdata The RDATA section of the key to use.\n * @param algorithm The algorithm ID of the key and signature.\n * @param keytag The keytag from the signature.\n * @param data The data to verify.\n * @param sig The signature to use.\n * @return True iff the key verifies the signature.\n */\n function verifySignatureWithKey(bytes memory keyrdata, uint8 algorithm, uint16 keytag, bytes memory data, bytes memory sig)\n internal\n view\n returns (bool)\n {\n if (address(algorithms[algorithm]) == address(0)) {\n return false;\n }\n // TODO: Check key isn't expired, unless updating key itself\n\n // o The RRSIG RR's Signer's Name, Algorithm, and Key Tag fields MUST\n // match the owner name, algorithm, and key tag for some DNSKEY RR in\n // the zone's apex DNSKEY RRset.\n if (keyrdata.readUint8(DNSKEY_PROTOCOL) != 3) {\n return false;\n }\n if (keyrdata.readUint8(DNSKEY_ALGORITHM) != algorithm) {\n return false;\n }\n uint16 computedkeytag = computeKeytag(keyrdata);\n if (computedkeytag != keytag) {\n return false;\n }\n\n // o The matching DNSKEY RR MUST be present in the zone's apex DNSKEY\n // RRset, and MUST have the Zone Flag bit (DNSKEY RDATA Flag bit 7)\n // set.\n if (keyrdata.readUint16(DNSKEY_FLAGS) & DNSKEY_FLAG_ZONEKEY == 0) {\n return false;\n }\n\n return algorithms[algorithm].verify(keyrdata, data, sig);\n }\n\n /**\n * @dev Attempts to verify a key using DS records.\n * @param keyname The DNS name of the key, in DNS label-sequence format.\n * @param keyrdata The RDATA section of the key.\n * @param keytag The keytag of the key.\n * @param algorithm The algorithm ID of the key.\n * @return True if a DS record verifies this key.\n */\n function verifyKeyWithDS(bytes memory keyname, bytes memory keyrdata, uint16 keytag, uint8 algorithm, bytes memory data)\n internal view returns (bool)\n {\n for (RRUtils.RRIterator memory iter = data.iterateRRs(0); !iter.done(); iter.next()) {\n if (data.readUint16(iter.rdataOffset + DS_KEY_TAG) != keytag) {\n continue;\n }\n if (data.readUint8(iter.rdataOffset + DS_ALGORITHM) != algorithm) {\n continue;\n }\n\n uint8 digesttype = data.readUint8(iter.rdataOffset + DS_DIGEST_TYPE);\n Buffer.buffer memory buf;\n buf.init(keyname.length + keyrdata.length);\n buf.append(keyname);\n buf.append(keyrdata);\n if (verifyDSHash(digesttype, buf.buf, data.substring(iter.rdataOffset, iter.nextOffset - iter.rdataOffset))) {\n return true;\n }\n }\n return false;\n }\n\n /**\n * @dev Attempts to verify a DS record's hash value against some data.\n * @param digesttype The digest ID from the DS record.\n * @param data The data to digest.\n * @param digest The digest data to check against.\n * @return True iff the digest matches.\n */\n function verifyDSHash(uint8 digesttype, bytes memory data, bytes memory digest) internal view returns (bool) {\n if (address(digests[digesttype]) == address(0)) {\n return false;\n }\n return digests[digesttype].verify(data, digest.substring(4, digest.length - 4));\n }\n\n /**\n * @dev Computes the keytag for a chunk of data.\n * @param data The data to compute a keytag for.\n * @return The computed key tag.\n */\n function computeKeytag(bytes memory data) internal pure returns (uint16) {\n uint ac;\n for (uint i = 0; i < data.length; i += 2) {\n ac += data.readUint16(i);\n }\n ac += (ac >> 16) & 0xFFFF;\n return uint16(ac & 0xFFFF);\n }\n}\n", "sourcePath": 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"t_uint16", "typeString": "uint16" }, "typeName": { "id": 816, "name": "uint16", "nodeType": "ElementaryTypeName", "src": "604:6:2", "typeDescriptions": { "typeIdentifier": "t_uint16", "typeString": "uint16" } }, "value": { "argumentTypes": null, "hexValue": "31", "id": 817, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "634:1:2", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_1_by_1", "typeString": "int_const 1" }, "value": "1" }, "visibility": "internal" }, { "constant": true, "id": 821, "name": "DNSTYPE_DS", "nodeType": "VariableDeclaration", "scope": 2395, "src": "642:31:2", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint16", "typeString": "uint16" }, "typeName": { "id": 819, "name": "uint16", "nodeType": "ElementaryTypeName", "src": "642:6:2", "typeDescriptions": { "typeIdentifier": "t_uint16", "typeString": "uint16" } }, "value": { "argumentTypes": null, "hexValue": "3433", "id": 820, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "671:2:2", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_43_by_1", "typeString": "int_const 43" }, "value": "43" }, "visibility": "internal" }, { "constant": true, "id": 824, "name": "DNSTYPE_RRSIG", "nodeType": "VariableDeclaration", "scope": 2395, "src": "679:34:2", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint16", "typeString": "uint16" }, "typeName": { "id": 822, "name": "uint16", "nodeType": "ElementaryTypeName", "src": "679:6:2", "typeDescriptions": { "typeIdentifier": "t_uint16", "typeString": "uint16" } }, "value": { "argumentTypes": null, "hexValue": "3436", "id": 823, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "711:2:2", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_46_by_1", "typeString": "int_const 46" }, "value": "46" }, "visibility": "internal" }, { "constant": true, "id": 827, "name": "DNSTYPE_NSEC", "nodeType": "VariableDeclaration", "scope": 2395, "src": "719:33:2", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint16", "typeString": "uint16" }, "typeName": { "id": 825, "name": "uint16", "nodeType": "ElementaryTypeName", "src": "719:6:2", "typeDescriptions": { "typeIdentifier": "t_uint16", "typeString": "uint16" } }, "value": { "argumentTypes": null, "hexValue": "3437", "id": 826, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "750:2:2", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_47_by_1", "typeString": "int_const 47" }, "value": "47" }, "visibility": "internal" }, { "constant": true, "id": 830, "name": "DNSTYPE_DNSKEY", "nodeType": "VariableDeclaration", "scope": 2395, "src": "758:35:2", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint16", "typeString": "uint16" }, "typeName": { "id": 828, "name": "uint16", "nodeType": "ElementaryTypeName", "src": "758:6:2", "typeDescriptions": { "typeIdentifier": "t_uint16", "typeString": "uint16" } }, "value": { "argumentTypes": null, "hexValue": "3438", "id": 829, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "791:2:2", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_48_by_1", "typeString": "int_const 48" }, "value": "48" }, "visibility": "internal" }, { "constant": true, "id": 833, "name": "DNSTYPE_NSEC3", "nodeType": "VariableDeclaration", "scope": 2395, "src": "799:34:2", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint16", "typeString": "uint16" }, "typeName": { "id": 831, "name": "uint16", "nodeType": "ElementaryTypeName", "src": "799:6:2", "typeDescriptions": { "typeIdentifier": "t_uint16", "typeString": "uint16" } }, "value": { "argumentTypes": null, "hexValue": "3530", "id": 832, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "831:2:2", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_50_by_1", "typeString": "int_const 50" }, "value": "50" }, "visibility": "internal" }, { "constant": true, "id": 836, "name": "DS_KEY_TAG", "nodeType": "VariableDeclaration", "scope": 2395, "src": "840:28:2", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 834, "name": "uint", "nodeType": "ElementaryTypeName", "src": "840:4:2", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": { "argumentTypes": null, "hexValue": "30", "id": 835, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "867:1:2", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" }, "value": "0" }, "visibility": "internal" }, { "constant": true, "id": 839, "name": "DS_ALGORITHM", "nodeType": "VariableDeclaration", "scope": 2395, "src": "874:30:2", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 837, "name": "uint", "nodeType": "ElementaryTypeName", "src": "874:4:2", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": { "argumentTypes": null, "hexValue": "32", "id": 838, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "903:1:2", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_2_by_1", "typeString": "int_const 2" }, "value": "2" }, "visibility": "internal" }, { "constant": true, "id": 842, "name": "DS_DIGEST_TYPE", "nodeType": "VariableDeclaration", "scope": 2395, "src": "910:32:2", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 840, "name": "uint", "nodeType": "ElementaryTypeName", "src": "910:4:2", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": { "argumentTypes": null, "hexValue": "33", "id": 841, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "941:1:2", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_3_by_1", "typeString": "int_const 3" }, "value": "3" }, "visibility": "internal" }, { "constant": true, "id": 845, "name": "DS_DIGEST", "nodeType": "VariableDeclaration", "scope": 2395, "src": "948:27:2", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 843, "name": "uint", "nodeType": "ElementaryTypeName", "src": "948:4:2", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": { "argumentTypes": null, "hexValue": "34", "id": 844, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "974:1:2", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_4_by_1", "typeString": "int_const 4" }, "value": "4" }, "visibility": "internal" }, { "constant": true, "id": 848, "name": "RRSIG_TYPE", "nodeType": "VariableDeclaration", "scope": 2395, "src": "982:28:2", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 846, "name": "uint", "nodeType": "ElementaryTypeName", "src": "982:4:2", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": { "argumentTypes": null, "hexValue": "30", "id": 847, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "1009:1:2", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" }, "value": "0" }, "visibility": "internal" }, { "constant": true, "id": 851, "name": "RRSIG_ALGORITHM", "nodeType": "VariableDeclaration", "scope": 2395, "src": "1016:33:2", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 849, "name": "uint", "nodeType": "ElementaryTypeName", "src": "1016:4:2", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": { "argumentTypes": null, "hexValue": "32", "id": 850, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "1048:1:2", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_2_by_1", "typeString": "int_const 2" }, "value": "2" }, "visibility": "internal" }, { "constant": true, "id": 854, "name": "RRSIG_LABELS", "nodeType": "VariableDeclaration", "scope": 2395, "src": "1055:30:2", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 852, "name": "uint", "nodeType": "ElementaryTypeName", "src": "1055:4:2", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": { "argumentTypes": null, "hexValue": "33", "id": 853, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "1084:1:2", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_3_by_1", "typeString": "int_const 3" }, "value": "3" }, "visibility": "internal" }, { "constant": true, "id": 857, "name": "RRSIG_TTL", "nodeType": "VariableDeclaration", "scope": 2395, "src": "1091:27:2", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 855, "name": "uint", "nodeType": "ElementaryTypeName", "src": "1091:4:2", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": { "argumentTypes": null, "hexValue": "34", "id": 856, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "1117:1:2", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_4_by_1", "typeString": "int_const 4" }, "value": "4" }, "visibility": "internal" }, { "constant": true, "id": 860, "name": "RRSIG_EXPIRATION", "nodeType": "VariableDeclaration", "scope": 2395, "src": "1124:34:2", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 858, "name": "uint", "nodeType": "ElementaryTypeName", "src": "1124:4:2", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": { "argumentTypes": null, "hexValue": "38", "id": 859, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "1157:1:2", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_8_by_1", "typeString": "int_const 8" }, "value": "8" }, "visibility": "internal" }, { "constant": true, "id": 863, "name": "RRSIG_INCEPTION", "nodeType": "VariableDeclaration", "scope": 2395, "src": "1164:34:2", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 861, "name": "uint", "nodeType": "ElementaryTypeName", "src": "1164:4:2", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": { "argumentTypes": null, "hexValue": "3132", "id": 862, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "1196:2:2", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_12_by_1", "typeString": "int_const 12" }, "value": "12" }, "visibility": "internal" }, { "constant": true, "id": 866, "name": "RRSIG_KEY_TAG", "nodeType": "VariableDeclaration", "scope": 2395, "src": "1204:32:2", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 864, "name": "uint", "nodeType": "ElementaryTypeName", "src": "1204:4:2", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": { "argumentTypes": null, "hexValue": "3136", "id": 865, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "1234:2:2", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_16_by_1", "typeString": "int_const 16" }, "value": "16" }, "visibility": "internal" }, { "constant": true, "id": 869, "name": "RRSIG_SIGNER_NAME", "nodeType": "VariableDeclaration", "scope": 2395, "src": "1242:36:2", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 867, "name": "uint", "nodeType": "ElementaryTypeName", "src": "1242:4:2", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": { "argumentTypes": null, "hexValue": "3138", "id": 868, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "1276:2:2", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_18_by_1", "typeString": "int_const 18" }, "value": "18" }, "visibility": "internal" }, { "constant": true, "id": 872, "name": "DNSKEY_FLAGS", "nodeType": "VariableDeclaration", "scope": 2395, "src": "1285:30:2", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 870, "name": "uint", "nodeType": "ElementaryTypeName", "src": "1285:4:2", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": { "argumentTypes": null, "hexValue": "30", "id": 871, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "1314:1:2", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" }, "value": "0" }, "visibility": "internal" }, { "constant": true, "id": 875, "name": "DNSKEY_PROTOCOL", "nodeType": "VariableDeclaration", "scope": 2395, "src": "1321:33:2", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 873, "name": "uint", "nodeType": "ElementaryTypeName", "src": "1321:4:2", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": { "argumentTypes": null, "hexValue": "32", "id": 874, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "1353:1:2", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_2_by_1", "typeString": "int_const 2" }, "value": "2" }, "visibility": "internal" }, { "constant": true, "id": 878, "name": "DNSKEY_ALGORITHM", "nodeType": "VariableDeclaration", "scope": 2395, "src": "1360:34:2", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 876, "name": "uint", "nodeType": "ElementaryTypeName", "src": "1360:4:2", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": { "argumentTypes": null, "hexValue": "33", "id": 877, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "1393:1:2", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_3_by_1", "typeString": "int_const 3" }, "value": "3" }, "visibility": "internal" }, { "constant": true, "id": 881, "name": "DNSKEY_PUBKEY", "nodeType": "VariableDeclaration", "scope": 2395, "src": "1400:31:2", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 879, "name": "uint", "nodeType": "ElementaryTypeName", "src": "1400:4:2", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": { "argumentTypes": null, "hexValue": "34", "id": 880, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "1430:1:2", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_4_by_1", "typeString": "int_const 4" }, "value": "4" }, "visibility": "internal" }, { "constant": true, "id": 884, "name": "DNSKEY_FLAG_ZONEKEY", "nodeType": "VariableDeclaration", "scope": 2395, "src": "1438:41:2", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 882, "name": "uint", "nodeType": "ElementaryTypeName", "src": "1438:4:2", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": { "argumentTypes": null, "hexValue": "3078313030", "id": 883, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "1474:5:2", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_256_by_1", "typeString": "int_const 256" }, "value": "0x100" }, "visibility": "internal" }, { "constant": true, "id": 887, "name": "NSEC3_HASH_ALGORITHM", "nodeType": "VariableDeclaration", "scope": 2395, "src": "1486:38:2", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 885, "name": "uint", "nodeType": "ElementaryTypeName", "src": "1486:4:2", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": { "argumentTypes": null, "hexValue": "30", "id": 886, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "1523:1:2", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" }, "value": "0" }, "visibility": "internal" }, { "constant": true, "id": 890, "name": "NSEC3_FLAGS", "nodeType": "VariableDeclaration", "scope": 2395, "src": "1530:29:2", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 888, "name": "uint", "nodeType": "ElementaryTypeName", "src": "1530:4:2", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": { "argumentTypes": null, "hexValue": "31", "id": 889, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "1558:1:2", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_1_by_1", "typeString": "int_const 1" }, "value": "1" }, "visibility": "internal" }, { "constant": true, "id": 893, "name": "NSEC3_ITERATIONS", "nodeType": "VariableDeclaration", "scope": 2395, "src": "1565:34:2", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 891, "name": "uint", "nodeType": "ElementaryTypeName", "src": "1565:4:2", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": { "argumentTypes": null, "hexValue": "32", "id": 892, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "1598:1:2", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_2_by_1", "typeString": "int_const 2" }, "value": "2" }, "visibility": "internal" }, { "constant": true, "id": 896, "name": "NSEC3_SALT_LENGTH", "nodeType": "VariableDeclaration", "scope": 2395, "src": "1605:35:2", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 894, "name": "uint", "nodeType": "ElementaryTypeName", "src": "1605:4:2", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": { "argumentTypes": null, "hexValue": "34", "id": 895, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "1639:1:2", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_4_by_1", "typeString": "int_const 4" }, "value": "4" }, "visibility": "internal" }, { "constant": true, "id": 899, "name": "NSEC3_SALT", "nodeType": "VariableDeclaration", "scope": 2395, "src": "1646:28:2", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 897, "name": "uint", "nodeType": "ElementaryTypeName", "src": "1646:4:2", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": { "argumentTypes": null, "hexValue": "35", "id": 898, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "1673:1:2", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_5_by_1", "typeString": "int_const 5" }, "value": "5" }, "visibility": "internal" }, { "constant": true, "id": 902, "name": "ALGORITHM_RSASHA256", "nodeType": "VariableDeclaration", "scope": 2395, "src": "1681:38:2", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint8", "typeString": "uint8" }, "typeName": { "id": 900, "name": "uint8", "nodeType": "ElementaryTypeName", "src": "1681:5:2", "typeDescriptions": { "typeIdentifier": "t_uint8", "typeString": "uint8" } }, "value": { "argumentTypes": null, "hexValue": "38", "id": 901, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "1718:1:2", 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This is in the format described in section\n 5.3.2 of RFC4035: The RRDATA section from the RRSIG without the signature\n data, followed by a series of canonicalised RR records that the signature\n applies to.", "id": 1245, "implemented": true, "kind": "function", "modifiers": [], "name": "deleteRRSet", "nodeType": "FunctionDefinition", "parameters": { "id": 1147, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 1138, "name": "deleteType", "nodeType": "VariableDeclaration", "scope": 1245, "src": "6211:17:2", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint16", "typeString": "uint16" }, "typeName": { "id": 1137, "name": "uint16", "nodeType": "ElementaryTypeName", "src": "6211:6:2", "typeDescriptions": { "typeIdentifier": "t_uint16", "typeString": "uint16" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 1140, "name": "deleteName", "nodeType": "VariableDeclaration", "scope": 1245, "src": 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"typeIdentifier": "t_struct$_RRIterator_$2631_memory_ptr", "typeString": "struct RRUtils.RRIterator memory" } }, "id": 1796, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "memberName": "next", "nodeType": "MemberAccess", "referencedDeclaration": 2774, "src": "15078:9:2", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_struct$_RRIterator_$2631_memory_ptr_$returns$__$bound_to$_t_struct$_RRIterator_$2631_memory_ptr_$", "typeString": "function (struct RRUtils.RRIterator memory) pure" } }, "id": 1797, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "15078:11:2", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 1798, "nodeType": "ExpressionStatement", "src": "15078:11:2" }, "nodeType": "ForStatement", "src": "15006:629:2" } ] }, "documentation": "@dev Validates a set of RRs.\n@param data The RR data.\n@param typecovered The type covered by the RRSIG record.", "id": 1852, "implemented": true, "kind": "function", "modifiers": [], "name": "validateRRs", "nodeType": "FunctionDefinition", "parameters": { "id": 1778, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 1775, "name": "data", "nodeType": "VariableDeclaration", "scope": 1852, "src": "14879:17:2", "stateVariable": false, "storageLocation": "memory", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes" }, "typeName": { "id": 1774, "name": "bytes", "nodeType": "ElementaryTypeName", "src": "14879:5:2", "typeDescriptions": { "typeIdentifier": "t_bytes_storage_ptr", "typeString": "bytes" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 1777, "name": "typecovered", "nodeType": "VariableDeclaration", "scope": 1852, "src": "14898:18:2", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint16", "typeString": "uint16" }, "typeName": { "id": 1776, "name": "uint16", "nodeType": "ElementaryTypeName", "src": "14898:6:2", "typeDescriptions": { "typeIdentifier": "t_uint16", "typeString": "uint16" } }, "value": null, "visibility": "internal" } ], "src": "14878:39:2" }, "returnParameters": { "id": 1781, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 1780, "name": "name", "nodeType": "VariableDeclaration", "scope": 1852, "src": "14941:17:2", "stateVariable": false, "storageLocation": "memory", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes" }, "typeName": { "id": 1779, "name": "bytes", "nodeType": "ElementaryTypeName", "src": "14941:5:2", "typeDescriptions": { "typeIdentifier": "t_bytes_storage_ptr", "typeString": "bytes" } }, "value": null, "visibility": "internal" } ], "src": "14940:19:2" }, "scope": 2395, "src": "14858:783:2", "stateMutability": "pure", "superFunction": null, "visibility": "internal" }, { "body": { "id": 1938, "nodeType": "Block", "src": "16059:829:2", "statements": [ { "assignments": [ 1864 ], "declarations": [ { "constant": false, "id": 1864, "name": "signerNameLength", "nodeType": "VariableDeclaration", "scope": 1938, "src": "16069:21:2", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 1863, "name": "uint", "nodeType": "ElementaryTypeName", "src": "16069:4:2", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "id": 1869, "initialValue": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 1867, "name": "RRSIG_SIGNER_NAME", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 869, "src": "16109:17:2", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "expression": { "argumentTypes": null, "id": 1865, "name": "data", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 1856, "src": "16093:4:2", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "id": 1866, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "nameLength", "nodeType": "MemberAccess", "referencedDeclaration": 2544, "src": "16093:15:2", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_bytes_memory_ptr_$_t_uint256_$returns$_t_uint256_$bound_to$_t_bytes_memory_ptr_$", "typeString": "function (bytes memory,uint256) pure returns (uint256)" } }, "id": 1868, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "16093:34:2", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "VariableDeclarationStatement", "src": "16069:58:2" }, { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "id": 1874, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "id": 1871, "name": "signerNameLength", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 1864, "src": "16263:16:2", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "BinaryOperation", "operator": "<=", "rightExpression": { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 1872, "name": "name", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 1854, "src": "16283:4:2", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "id": 1873, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "length", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "16283:11:2", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "16263:31:2", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bool", "typeString": "bool" } ], "id": 1870, "name": "require", "nodeType": "Identifier", "overloadedDeclarations": [ 4242, 4243 ], "referencedDeclaration": 4242, "src": "16255:7:2", "typeDescriptions": { "typeIdentifier": "t_function_require_pure$_t_bool_$returns$__$", "typeString": "function (bool) pure" } }, "id": 1875, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "16255:40:2", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 1876, "nodeType": "ExpressionStatement", "src": "16255:40:2" }, { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 1880, "name": "RRSIG_SIGNER_NAME", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 869, "src": "16325:17:2", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, { "argumentTypes": null, "id": 1881, "name": "name", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 1854, "src": "16344:4:2", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, { "argumentTypes": null, "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "id": 1885, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 1882, "name": "name", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 1854, "src": "16350:4:2", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "id": 1883, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "length", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "16350:11:2", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "BinaryOperation", "operator": "-", "rightExpression": { "argumentTypes": null, "id": 1884, "name": "signerNameLength", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 1864, "src": "16364:16:2", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "16350:30:2", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, { "argumentTypes": null, "id": 1886, "name": "signerNameLength", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 1864, "src": "16382:16:2", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_uint256", "typeString": "uint256" }, { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "expression": { "argumentTypes": null, "id": 1878, "name": "data", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 1856, "src": "16313:4:2", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "id": 1879, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "equals", "nodeType": "MemberAccess", "referencedDeclaration": 204, "src": "16313:11:2", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_bytes_memory_ptr_$_t_uint256_$_t_bytes_memory_ptr_$_t_uint256_$_t_uint256_$returns$_t_bool_$bound_to$_t_bytes_memory_ptr_$", "typeString": "function (bytes memory,uint256,bytes memory,uint256,uint256) pure returns (bool)" } }, "id": 1887, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "16313:86:2", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bool", "typeString": "bool" } ], "id": 1877, "name": "require", "nodeType": "Identifier", "overloadedDeclarations": [ 4242, 4243 ], "referencedDeclaration": 4242, "src": "16305:7:2", "typeDescriptions": { "typeIdentifier": "t_function_require_pure$_t_bool_$returns$__$", "typeString": "function (bool) pure" } }, "id": 1888, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "16305:95:2", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 1889, "nodeType": "ExpressionStatement", "src": "16305:95:2" }, { "assignments": [ 1891 ], "declarations": [ { "constant": false, "id": 1891, "name": "offset", "nodeType": "VariableDeclaration", "scope": 1938, "src": "16469:11:2", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 1890, "name": "uint", "nodeType": "ElementaryTypeName", "src": "16469:4:2", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "id": 1895, "initialValue": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "id": 1894, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "hexValue": "3138", "id": 1892, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "16483:2:2", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_18_by_1", "typeString": "int_const 18" }, "value": "18" }, "nodeType": "BinaryOperation", "operator": "+", "rightExpression": { "argumentTypes": null, "id": 1893, "name": "signerNameLength", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 1864, "src": "16488:16:2", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "16483:21:2", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "VariableDeclarationStatement", "src": "16469:35:2" }, { "assignments": [ 1897 ], "declarations": [ { "constant": false, "id": 1897, "name": "dnstype", "nodeType": "VariableDeclaration", "scope": 1938, "src": "16542:14:2", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint16", "typeString": "uint16" }, "typeName": { "id": 1896, "name": "uint16", "nodeType": "ElementaryTypeName", "src": "16542:6:2", "typeDescriptions": { "typeIdentifier": "t_uint16", "typeString": "uint16" } }, "value": null, "visibility": "internal" } ], "id": 1905, "initialValue": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "30", "id": 1902, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "16593:1:2", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" }, "value": "0" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" } ], "expression": { "argumentTypes": null, "id": 1900, "name": "proof", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 1860, "src": "16576:5:2", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "id": 1901, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "nameLength", "nodeType": "MemberAccess", "referencedDeclaration": 2544, "src": "16576:16:2", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_bytes_memory_ptr_$_t_uint256_$returns$_t_uint256_$bound_to$_t_bytes_memory_ptr_$", "typeString": "function (bytes memory,uint256) pure returns (uint256)" } }, "id": 1903, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "16576:19:2", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "expression": { 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"typeString": "uint16" }, "id": 1921, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "id": 1919, "name": "dnstype", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 1897, "src": "16715:7:2", "typeDescriptions": { "typeIdentifier": "t_uint16", "typeString": "uint16" } }, "nodeType": "BinaryOperation", "operator": "==", "rightExpression": { "argumentTypes": null, "id": 1920, "name": "DNSTYPE_DNSKEY", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 830, "src": "16726:14:2", "typeDescriptions": { "typeIdentifier": "t_uint16", "typeString": "uint16" } }, "src": "16715:25:2", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "falseBody": { "id": 1935, "nodeType": "Block", "src": "16818:64:2", "statements": [ { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "556e737570706f727465642070726f6f66207265636f72642074797065", "id": 1932, "isConstant": false, "isLValue": false, "isPure": true, "kind": "string", "lValueRequested": false, "nodeType": "Literal", "src": "16839:31:2", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_stringliteral_3da70a215b06239aa31f989d237f58cd6f95f5dfcaea04f100969f4436406d9e", "typeString": "literal_string \"Unsupported proof record type\"" }, "value": "Unsupported proof record type" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_stringliteral_3da70a215b06239aa31f989d237f58cd6f95f5dfcaea04f100969f4436406d9e", "typeString": "literal_string \"Unsupported proof record type\"" } ], "id": 1931, "name": "revert", "nodeType": "Identifier", "overloadedDeclarations": [ 4244, 4245 ], "referencedDeclaration": 4245, "src": "16832:6:2", "typeDescriptions": { "typeIdentifier": "t_function_revert_pure$_t_string_memory_ptr_$returns$__$", "typeString": "function (string memory) pure" } }, "id": 1933, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "16832:39:2", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 1934, "nodeType": "ExpressionStatement", "src": "16832:39:2" } ] }, "id": 1936, "nodeType": "IfStatement", "src": "16711:171:2", "trueBody": { "id": 1930, "nodeType": "Block", "src": "16742:70:2", "statements": [ { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 1924, "name": "data", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 1856, "src": "16783:4:2", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, { "argumentTypes": null, "id": 1925, "name": "sig", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 1858, "src": "16789:3:2", 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"id": 2305, "nodeType": "Return", "src": "22127:12:2" } ] }, "documentation": "@dev Attempts to verify a key using DS records.\n@param keyname The DNS name of the key, in DNS label-sequence format.\n@param keyrdata The RDATA section of the key.\n@param keytag The keytag of the key.\n@param algorithm The algorithm ID of the key.\n@return True if a DS record verifies this key.", "id": 2307, "implemented": true, "kind": "function", "modifiers": [], "name": "verifyKeyWithDS", "nodeType": "FunctionDefinition", "parameters": { "id": 2201, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 2192, "name": "keyname", "nodeType": "VariableDeclaration", "scope": 2307, "src": "21229:20:2", "stateVariable": false, "storageLocation": "memory", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes" }, "typeName": { "id": 2191, "name": "bytes", "nodeType": "ElementaryTypeName", "src": "21229:5:2", "typeDescriptions": { "typeIdentifier": 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"t_struct$_buffer_$3757_storage_ptr", "typeString": "struct Buffer.buffer" } } }, { "id": 813, "libraryName": { "contractScope": null, "id": 811, "name": "BytesUtils", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 720, "src": "552:10:2", "typeDescriptions": { "typeIdentifier": "t_contract$_BytesUtils_$720", "typeString": "library BytesUtils" } }, "nodeType": "UsingForDirective", "src": "546:27:2", "typeName": { "id": 812, "name": "bytes", "nodeType": "ElementaryTypeName", "src": "567:5:2", "typeDescriptions": { "typeIdentifier": "t_bytes_storage_ptr", "typeString": "bytes" } } }, { "id": 815, "libraryName": { "contractScope": null, "id": 814, "name": "RRUtils", "nodeType": "UserDefinedTypeName", "referencedDeclaration": 3110, "src": "584:7:2", "typeDescriptions": { "typeIdentifier": "t_contract$_RRUtils_$3110", "typeString": "library RRUtils" } }, "nodeType": "UsingForDirective", "src": "578:20:2", "typeName": null }, { "constant": true, "id": 818, "name": "DNSCLASS_IN", "nodeType": "VariableDeclaration", "scope": 2395, "src": "604:31:2", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint16", "typeString": "uint16" }, "typeName": { "id": 816, "name": "uint16", "nodeType": "ElementaryTypeName", "src": "604:6:2", "typeDescriptions": { "typeIdentifier": "t_uint16", "typeString": "uint16" } }, "value": { "argumentTypes": null, "hexValue": "31", "id": 817, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "634:1:2", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_1_by_1", "typeString": "int_const 1" }, "value": "1" }, "visibility": "internal" }, { "constant": true, "id": 821, "name": "DNSTYPE_DS", "nodeType": "VariableDeclaration", "scope": 2395, "src": "642:31:2", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint16", "typeString": "uint16" }, "typeName": { "id": 819, "name": "uint16", "nodeType": "ElementaryTypeName", "src": "642:6:2", "typeDescriptions": { "typeIdentifier": "t_uint16", "typeString": "uint16" } }, "value": { "argumentTypes": null, "hexValue": "3433", "id": 820, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "671:2:2", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_43_by_1", "typeString": "int_const 43" }, "value": "43" }, "visibility": "internal" }, { "constant": true, "id": 824, "name": "DNSTYPE_RRSIG", "nodeType": "VariableDeclaration", "scope": 2395, "src": "679:34:2", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint16", "typeString": "uint16" }, "typeName": { "id": 822, "name": "uint16", "nodeType": "ElementaryTypeName", "src": "679:6:2", "typeDescriptions": { "typeIdentifier": "t_uint16", "typeString": "uint16" } }, "value": { "argumentTypes": null, "hexValue": "3436", "id": 823, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "711:2:2", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_46_by_1", "typeString": "int_const 46" }, "value": "46" }, "visibility": "internal" }, { "constant": true, "id": 827, "name": "DNSTYPE_NSEC", "nodeType": "VariableDeclaration", "scope": 2395, "src": "719:33:2", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint16", "typeString": "uint16" }, "typeName": { "id": 825, "name": "uint16", "nodeType": "ElementaryTypeName", "src": "719:6:2", "typeDescriptions": { "typeIdentifier": "t_uint16", "typeString": "uint16" } }, "value": { "argumentTypes": null, "hexValue": "3437", "id": 826, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "750:2:2", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_47_by_1", "typeString": "int_const 47" }, "value": "47" }, "visibility": "internal" }, { "constant": true, "id": 830, "name": "DNSTYPE_DNSKEY", "nodeType": "VariableDeclaration", "scope": 2395, "src": "758:35:2", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint16", "typeString": "uint16" }, "typeName": { "id": 828, "name": "uint16", "nodeType": "ElementaryTypeName", "src": "758:6:2", "typeDescriptions": { "typeIdentifier": "t_uint16", "typeString": "uint16" } }, "value": { "argumentTypes": null, "hexValue": "3438", "id": 829, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "791:2:2", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_48_by_1", "typeString": "int_const 48" }, "value": "48" }, "visibility": "internal" }, { "constant": true, "id": 833, "name": "DNSTYPE_NSEC3", "nodeType": "VariableDeclaration", "scope": 2395, "src": "799:34:2", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint16", "typeString": "uint16" }, "typeName": { "id": 831, "name": "uint16", "nodeType": "ElementaryTypeName", "src": "799:6:2", "typeDescriptions": { "typeIdentifier": "t_uint16", "typeString": "uint16" } }, "value": { "argumentTypes": null, "hexValue": "3530", "id": 832, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "831:2:2", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_50_by_1", "typeString": "int_const 50" }, "value": "50" }, "visibility": "internal" }, { "constant": true, "id": 836, "name": "DS_KEY_TAG", "nodeType": "VariableDeclaration", "scope": 2395, "src": "840:28:2", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 834, "name": "uint", "nodeType": "ElementaryTypeName", "src": "840:4:2", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": { "argumentTypes": null, "hexValue": "30", "id": 835, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "867:1:2", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" }, "value": "0" }, "visibility": "internal" }, { "constant": true, "id": 839, "name": "DS_ALGORITHM", "nodeType": "VariableDeclaration", "scope": 2395, "src": "874:30:2", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 837, "name": "uint", "nodeType": "ElementaryTypeName", "src": "874:4:2", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": { "argumentTypes": null, "hexValue": "32", "id": 838, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "903:1:2", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_2_by_1", "typeString": "int_const 2" }, "value": "2" }, "visibility": "internal" }, { "constant": true, "id": 842, "name": "DS_DIGEST_TYPE", "nodeType": "VariableDeclaration", "scope": 2395, "src": "910:32:2", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 840, "name": "uint", "nodeType": "ElementaryTypeName", "src": "910:4:2", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": { "argumentTypes": null, "hexValue": "33", "id": 841, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "941:1:2", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_3_by_1", "typeString": "int_const 3" }, "value": "3" }, "visibility": "internal" }, { "constant": true, "id": 845, "name": "DS_DIGEST", "nodeType": "VariableDeclaration", "scope": 2395, "src": "948:27:2", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 843, "name": "uint", "nodeType": "ElementaryTypeName", "src": "948:4:2", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": { "argumentTypes": null, "hexValue": "34", "id": 844, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "974:1:2", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_4_by_1", "typeString": "int_const 4" }, "value": "4" }, "visibility": "internal" }, { "constant": true, "id": 848, "name": "RRSIG_TYPE", "nodeType": "VariableDeclaration", "scope": 2395, "src": "982:28:2", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 846, "name": "uint", "nodeType": "ElementaryTypeName", "src": "982:4:2", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": { "argumentTypes": null, "hexValue": "30", "id": 847, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "1009:1:2", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" }, "value": "0" }, "visibility": "internal" }, { "constant": true, "id": 851, "name": "RRSIG_ALGORITHM", "nodeType": "VariableDeclaration", "scope": 2395, "src": "1016:33:2", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 849, "name": "uint", "nodeType": "ElementaryTypeName", "src": "1016:4:2", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": { "argumentTypes": null, "hexValue": "32", "id": 850, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "1048:1:2", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_2_by_1", "typeString": "int_const 2" }, "value": "2" }, "visibility": "internal" }, { "constant": true, "id": 854, "name": "RRSIG_LABELS", "nodeType": "VariableDeclaration", "scope": 2395, "src": "1055:30:2", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 852, "name": "uint", "nodeType": "ElementaryTypeName", "src": "1055:4:2", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": { "argumentTypes": null, "hexValue": "33", "id": 853, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "1084:1:2", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_3_by_1", "typeString": "int_const 3" }, "value": "3" }, "visibility": "internal" }, { "constant": true, "id": 857, "name": "RRSIG_TTL", "nodeType": "VariableDeclaration", "scope": 2395, "src": "1091:27:2", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 855, "name": "uint", "nodeType": "ElementaryTypeName", "src": "1091:4:2", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": { "argumentTypes": null, "hexValue": "34", "id": 856, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "1117:1:2", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_4_by_1", "typeString": "int_const 4" }, "value": "4" }, "visibility": "internal" }, { "constant": true, "id": 860, "name": "RRSIG_EXPIRATION", "nodeType": "VariableDeclaration", "scope": 2395, "src": "1124:34:2", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 858, "name": "uint", "nodeType": "ElementaryTypeName", "src": "1124:4:2", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": { "argumentTypes": null, "hexValue": "38", "id": 859, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "1157:1:2", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_8_by_1", "typeString": "int_const 8" }, "value": "8" }, "visibility": "internal" }, { "constant": true, "id": 863, "name": "RRSIG_INCEPTION", "nodeType": "VariableDeclaration", "scope": 2395, "src": "1164:34:2", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 861, "name": "uint", "nodeType": "ElementaryTypeName", "src": "1164:4:2", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": { "argumentTypes": null, "hexValue": "3132", "id": 862, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "1196:2:2", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_12_by_1", "typeString": "int_const 12" }, "value": "12" }, "visibility": "internal" }, { "constant": true, "id": 866, "name": "RRSIG_KEY_TAG", "nodeType": "VariableDeclaration", "scope": 2395, "src": "1204:32:2", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 864, "name": "uint", "nodeType": "ElementaryTypeName", "src": "1204:4:2", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": { "argumentTypes": null, "hexValue": "3136", "id": 865, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "1234:2:2", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_16_by_1", "typeString": "int_const 16" }, "value": "16" }, "visibility": "internal" }, { "constant": true, "id": 869, "name": "RRSIG_SIGNER_NAME", "nodeType": "VariableDeclaration", "scope": 2395, "src": "1242:36:2", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 867, "name": "uint", "nodeType": "ElementaryTypeName", "src": "1242:4:2", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": { "argumentTypes": null, "hexValue": "3138", "id": 868, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "1276:2:2", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_18_by_1", "typeString": "int_const 18" }, "value": "18" }, "visibility": "internal" }, { "constant": true, "id": 872, "name": "DNSKEY_FLAGS", "nodeType": "VariableDeclaration", "scope": 2395, "src": "1285:30:2", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 870, "name": "uint", "nodeType": "ElementaryTypeName", "src": "1285:4:2", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": { "argumentTypes": null, "hexValue": "30", "id": 871, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "1314:1:2", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" }, "value": "0" }, "visibility": "internal" }, { "constant": true, "id": 875, "name": "DNSKEY_PROTOCOL", "nodeType": "VariableDeclaration", "scope": 2395, "src": "1321:33:2", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 873, "name": "uint", "nodeType": "ElementaryTypeName", "src": "1321:4:2", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": { "argumentTypes": null, "hexValue": "32", "id": 874, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "1353:1:2", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_2_by_1", "typeString": "int_const 2" }, "value": "2" }, "visibility": "internal" }, { "constant": true, "id": 878, "name": "DNSKEY_ALGORITHM", "nodeType": "VariableDeclaration", "scope": 2395, "src": "1360:34:2", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 876, "name": "uint", "nodeType": "ElementaryTypeName", "src": "1360:4:2", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": { "argumentTypes": null, "hexValue": "33", "id": 877, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "1393:1:2", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_3_by_1", "typeString": "int_const 3" }, "value": "3" }, "visibility": "internal" }, { "constant": true, "id": 881, "name": "DNSKEY_PUBKEY", "nodeType": "VariableDeclaration", "scope": 2395, "src": "1400:31:2", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 879, "name": "uint", "nodeType": "ElementaryTypeName", "src": "1400:4:2", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": { "argumentTypes": null, "hexValue": "34", "id": 880, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "1430:1:2", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_4_by_1", "typeString": "int_const 4" }, "value": "4" }, "visibility": "internal" }, { "constant": true, "id": 884, "name": "DNSKEY_FLAG_ZONEKEY", "nodeType": "VariableDeclaration", "scope": 2395, "src": "1438:41:2", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 882, "name": "uint", "nodeType": "ElementaryTypeName", "src": "1438:4:2", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": { "argumentTypes": null, "hexValue": "3078313030", "id": 883, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "1474:5:2", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_256_by_1", "typeString": "int_const 256" }, "value": "0x100" }, "visibility": "internal" }, { "constant": true, "id": 887, "name": "NSEC3_HASH_ALGORITHM", "nodeType": "VariableDeclaration", "scope": 2395, "src": "1486:38:2", "stateVariable": true, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 885, "name": "uint", "nodeType": "ElementaryTypeName", "src": "1486:4:2", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": { "argumentTypes": null, "hexValue": "30", "id": 886, "isConstant": 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"lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "4599:23:2", "typeDescriptions": { "typeIdentifier": "t_uint16", "typeString": "uint16" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_uint256", "typeString": "uint256" }, { "typeIdentifier": "t_uint16", "typeString": "uint16" } ], "expression": { "argumentTypes": null, "id": 1087, "name": "data", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 1046, "src": "4572:4:2", "typeDescriptions": { "typeIdentifier": "t_bytes_calldata_ptr", "typeString": "bytes calldata" } }, "id": 1088, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "substring", "nodeType": "MemberAccess", "referencedDeclaration": 497, "src": "4572:14:2", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_bytes_memory_ptr_$_t_uint256_$_t_uint256_$returns$_t_bytes_memory_ptr_$bound_to$_t_bytes_memory_ptr_$", "typeString": "function (bytes memory,uint256,uint256) pure returns (bytes memory)" } }, "id": 1096, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "4572:51:2", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "nodeType": "VariableDeclarationStatement", "src": "4553:70:2" }, { "expression": { "argumentTypes": null, "id": 1103, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "id": 1098, "name": "offset", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 1054, "src": "4637:6:2", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "Assignment", "operator": "+=", "rightHandSide": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "id": 1102, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 1099, "name": "sig", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 1086, "src": "4647:3:2", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "id": 1100, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "length", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "4647:10:2", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "BinaryOperation", "operator": "+", "rightExpression": { "argumentTypes": null, "hexValue": "32", "id": 1101, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "4660:1:2", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_2_by_1", "typeString": "int_const 2" }, "value": "2" }, "src": "4647:14:2", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "4637:24:2", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "id": 1104, "nodeType": "ExpressionStatement", "src": "4637:24:2" }, { "expression": { "argumentTypes": null, "id": 1111, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftHandSide": { "argumentTypes": null, "id": 1105, "name": "proof", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 1058, "src": "4675:5:2", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "nodeType": "Assignment", "operator": "=", "rightHandSide": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 1107, "name": "input", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 1066, "src": "4696:5:2", 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"4683:12:2", "typeDescriptions": { "typeIdentifier": "t_function_internal_nonpayable$_t_bytes_memory_ptr_$_t_bytes_memory_ptr_$_t_bytes_memory_ptr_$returns$_t_bytes_memory_ptr_$", "typeString": "function (bytes memory,bytes memory,bytes memory) returns (bytes memory)" } }, "id": 1110, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "4683:31:2", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "src": "4675:39:2", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "id": 1112, "nodeType": "ExpressionStatement", "src": "4675:39:2" } ] }, "condition": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "id": 1064, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "id": 1061, "name": "offset", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 1054, "src": "4391:6:2", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "BinaryOperation", "operator": "<", "rightExpression": { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 1062, "name": "data", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 1046, "src": "4400:4:2", "typeDescriptions": { "typeIdentifier": "t_bytes_calldata_ptr", "typeString": "bytes calldata" } }, "id": 1063, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "length", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "4400:11:2", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "4391:20:2", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } }, "id": 1114, "nodeType": "WhileStatement", "src": "4385:340:2" }, { "expression": { "argumentTypes": null, "id": 1115, "name": "proof", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 1058, "src": "4741:5:2", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "functionReturnParameters": 1052, "id": 1116, "nodeType": "Return", "src": "4734:12:2" } ] }, "documentation": "@dev Submits multiple RRSets\n@param data The data to submit, as a series of chunks. Each chunk is\n in the format \n@param _proof The DNSKEY or DS to validate the first signature against.\n@return The last RRSET submitted.", "id": 1118, "implemented": true, "kind": "function", "modifiers": [], "name": "submitRRSets", "nodeType": "FunctionDefinition", "parameters": { "id": 1049, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 1046, "name": "data", "nodeType": "VariableDeclaration", "scope": 1118, "src": "4237:19:2", "stateVariable": false, "storageLocation": "calldata", "typeDescriptions": { "typeIdentifier": "t_bytes_calldata_ptr", "typeString": "bytes" }, "typeName": { "id": 1045, "name": "bytes", "nodeType": "ElementaryTypeName", "src": "4237:5:2", "typeDescriptions": { "typeIdentifier": "t_bytes_storage_ptr", "typeString": "bytes" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 1048, "name": "_proof", "nodeType": "VariableDeclaration", "scope": 1118, "src": "4258:21:2", "stateVariable": false, "storageLocation": "calldata", "typeDescriptions": { "typeIdentifier": "t_bytes_calldata_ptr", "typeString": "bytes" }, "typeName": { "id": 1047, "name": "bytes", "nodeType": "ElementaryTypeName", "src": "4258:5:2", "typeDescriptions": { "typeIdentifier": "t_bytes_storage_ptr", "typeString": "bytes" } }, "value": null, "visibility": "internal" } ], "src": "4236:44:2" }, "returnParameters": { "id": 1052, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 1051, "name": "", "nodeType": "VariableDeclaration", "scope": 1118, "src": "4299:12:2", "stateVariable": false, "storageLocation": "memory", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes" }, "typeName": { "id": 1050, "name": "bytes", "nodeType": "ElementaryTypeName", "src": "4299:5:2", "typeDescriptions": { "typeIdentifier": "t_bytes_storage_ptr", "typeString": "bytes" } }, "value": null, "visibility": "internal" } ], "src": "4298:14:2" }, "scope": 2395, "src": "4215:538:2", "stateMutability": "nonpayable", "superFunction": 755, "visibility": "external" }, { "body": { "id": 1135, "nodeType": "Block", "src": "5670:55:2", "statements": [ { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 1130, "name": "input", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 1120, "src": "5700:5:2", "typeDescriptions": { "typeIdentifier": "t_bytes_calldata_ptr", "typeString": "bytes calldata" } }, { "argumentTypes": null, "id": 1131, "name": "sig", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 1122, "src": "5707:3:2", "typeDescriptions": { "typeIdentifier": "t_bytes_calldata_ptr", "typeString": "bytes calldata" } }, { "argumentTypes": null, "id": 1132, "name": "proof", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 1124, "src": "5712:5:2", "typeDescriptions": { "typeIdentifier": "t_bytes_calldata_ptr", "typeString": "bytes calldata" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bytes_calldata_ptr", "typeString": "bytes calldata" }, { "typeIdentifier": "t_bytes_calldata_ptr", "typeString": "bytes calldata" }, { "typeIdentifier": "t_bytes_calldata_ptr", "typeString": "bytes calldata" } ], "id": 1129, "name": "_submitRRSet", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 1627, "src": "5687:12:2", "typeDescriptions": { "typeIdentifier": "t_function_internal_nonpayable$_t_bytes_memory_ptr_$_t_bytes_memory_ptr_$_t_bytes_memory_ptr_$returns$_t_bytes_memory_ptr_$", "typeString": "function (bytes memory,bytes memory,bytes memory) returns (bytes memory)" } }, "id": 1133, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "5687:31:2", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "functionReturnParameters": 1128, "id": 1134, "nodeType": "Return", "src": "5680:38:2" } ] }, "documentation": "@dev Submits a signed set of RRs to the oracle.\n * RRSETs are only accepted if they are signed with a key that is already\ntrusted, or if they are self-signed, and the signing key is identified by\na DS record that is already trusted.\n * @param input The signed RR set. 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"argumentTypes": [], "id": 1241, "name": "revert", "nodeType": "Identifier", "overloadedDeclarations": [ 4244, 4245 ], "referencedDeclaration": 4244, "src": "7958:6:2", "typeDescriptions": { "typeIdentifier": "t_function_revert_pure$__$returns$__$", "typeString": "function () pure" } }, "id": 1242, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "7958:8:2", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 1243, "nodeType": "ExpressionStatement", "src": "7958:8:2" } ] }, "documentation": "@dev Deletes an RR from the oracle.\n * @param deleteType The DNS record type to delete.\n@param deleteName which you want to delete\n@param nsec The signed NSEC RRset. This is in the format described in section\n 5.3.2 of RFC4035: The RRDATA section from the RRSIG without the signature\n data, followed by a series of canonicalised RR records that the signature\n applies to.", "id": 1245, "implemented": true, "kind": "function", "modifiers": [], "name": "deleteRRSet", "nodeType": "FunctionDefinition", "parameters": { "id": 1147, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 1138, "name": "deleteType", "nodeType": "VariableDeclaration", "scope": 1245, "src": "6211:17:2", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint16", "typeString": "uint16" }, "typeName": { "id": 1137, "name": "uint16", "nodeType": "ElementaryTypeName", "src": "6211:6:2", "typeDescriptions": { "typeIdentifier": "t_uint16", "typeString": "uint16" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 1140, "name": "deleteName", "nodeType": "VariableDeclaration", "scope": 1245, "src": 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"visibility": "internal" } ], "id": 1790, "initialValue": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "30", "id": 1788, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "15060:1:2", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" }, "value": "0" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" } ], "expression": { "argumentTypes": null, "id": 1786, "name": "data", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 1775, "src": "15044:4:2", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "id": 1787, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "iterateRRs", "nodeType": "MemberAccess", "referencedDeclaration": 2657, "src": "15044:15:2", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_bytes_memory_ptr_$_t_uint256_$returns$_t_struct$_RRIterator_$2631_memory_ptr_$bound_to$_t_bytes_memory_ptr_$", "typeString": "function (bytes memory,uint256) pure returns (struct RRUtils.RRIterator memory)" } }, "id": 1789, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "15044:18:2", "typeDescriptions": { "typeIdentifier": "t_struct$_RRIterator_$2631_memory_ptr", "typeString": "struct RRUtils.RRIterator memory" } }, "nodeType": "VariableDeclarationStatement", "src": "15011:51:2" }, "loopExpression": { "expression": { "argumentTypes": null, "arguments": [], "expression": { "argumentTypes": [], "expression": { "argumentTypes": null, "id": 1795, "name": "iter", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 1785, "src": "15078:4:2", "typeDescriptions": { "typeIdentifier": "t_struct$_RRIterator_$2631_memory_ptr", "typeString": "struct RRUtils.RRIterator memory" } }, "id": 1796, "isConstant": false, "isLValue": true, "isPure": false, "lValueRequested": false, "memberName": "next", "nodeType": "MemberAccess", "referencedDeclaration": 2774, "src": "15078:9:2", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_struct$_RRIterator_$2631_memory_ptr_$returns$__$bound_to$_t_struct$_RRIterator_$2631_memory_ptr_$", "typeString": "function (struct RRUtils.RRIterator memory) pure" } }, "id": 1797, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "15078:11:2", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 1798, "nodeType": "ExpressionStatement", "src": "15078:11:2" }, "nodeType": "ForStatement", "src": "15006:629:2" } ] }, "documentation": "@dev Validates a set of RRs.\n@param data The RR data.\n@param typecovered The type covered by the RRSIG record.", "id": 1852, "implemented": true, "kind": "function", "modifiers": [], "name": "validateRRs", "nodeType": "FunctionDefinition", "parameters": { "id": 1778, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 1775, "name": "data", "nodeType": "VariableDeclaration", "scope": 1852, "src": "14879:17:2", "stateVariable": false, "storageLocation": "memory", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes" }, "typeName": { "id": 1774, "name": "bytes", "nodeType": "ElementaryTypeName", "src": "14879:5:2", "typeDescriptions": { "typeIdentifier": "t_bytes_storage_ptr", "typeString": "bytes" } }, "value": null, "visibility": "internal" }, { "constant": false, "id": 1777, "name": "typecovered", "nodeType": "VariableDeclaration", "scope": 1852, "src": "14898:18:2", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint16", "typeString": "uint16" }, "typeName": { "id": 1776, "name": "uint16", "nodeType": "ElementaryTypeName", "src": "14898:6:2", "typeDescriptions": { "typeIdentifier": "t_uint16", "typeString": "uint16" } }, "value": null, "visibility": "internal" } ], "src": "14878:39:2" }, "returnParameters": { "id": 1781, "nodeType": "ParameterList", "parameters": [ { "constant": false, "id": 1780, "name": "name", "nodeType": "VariableDeclaration", "scope": 1852, "src": "14941:17:2", "stateVariable": false, "storageLocation": "memory", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes" }, "typeName": { "id": 1779, "name": "bytes", "nodeType": "ElementaryTypeName", "src": "14941:5:2", "typeDescriptions": { "typeIdentifier": "t_bytes_storage_ptr", "typeString": "bytes" } }, "value": null, "visibility": "internal" } ], "src": "14940:19:2" }, "scope": 2395, "src": "14858:783:2", "stateMutability": "pure", "superFunction": null, "visibility": "internal" }, { "body": { "id": 1938, "nodeType": "Block", "src": "16059:829:2", "statements": [ { "assignments": [ 1864 ], "declarations": [ { "constant": false, "id": 1864, "name": "signerNameLength", "nodeType": "VariableDeclaration", "scope": 1938, "src": "16069:21:2", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 1863, "name": "uint", "nodeType": "ElementaryTypeName", "src": "16069:4:2", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "id": 1869, "initialValue": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 1867, "name": "RRSIG_SIGNER_NAME", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 869, "src": "16109:17:2", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "expression": { "argumentTypes": null, "id": 1865, "name": "data", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 1856, "src": "16093:4:2", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "id": 1866, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "nameLength", "nodeType": "MemberAccess", "referencedDeclaration": 2544, "src": "16093:15:2", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_bytes_memory_ptr_$_t_uint256_$returns$_t_uint256_$bound_to$_t_bytes_memory_ptr_$", "typeString": "function (bytes memory,uint256) pure returns (uint256)" } }, "id": 1868, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "16093:34:2", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "VariableDeclarationStatement", "src": "16069:58:2" }, { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "id": 1874, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "id": 1871, "name": "signerNameLength", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 1864, "src": "16263:16:2", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "BinaryOperation", "operator": "<=", "rightExpression": { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 1872, "name": "name", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 1854, "src": "16283:4:2", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "id": 1873, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "length", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "16283:11:2", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "16263:31:2", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bool", "typeString": "bool" } ], "id": 1870, "name": "require", "nodeType": "Identifier", "overloadedDeclarations": [ 4242, 4243 ], "referencedDeclaration": 4242, "src": "16255:7:2", "typeDescriptions": { "typeIdentifier": "t_function_require_pure$_t_bool_$returns$__$", "typeString": "function (bool) pure" } }, "id": 1875, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "16255:40:2", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 1876, "nodeType": "ExpressionStatement", "src": "16255:40:2" }, { "expression": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "id": 1880, "name": "RRSIG_SIGNER_NAME", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 869, "src": "16325:17:2", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, { "argumentTypes": null, "id": 1881, "name": "name", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 1854, "src": "16344:4:2", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, { "argumentTypes": null, "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "id": 1885, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "expression": { "argumentTypes": null, "id": 1882, "name": "name", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 1854, "src": "16350:4:2", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "id": 1883, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "length", "nodeType": "MemberAccess", "referencedDeclaration": null, "src": "16350:11:2", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "BinaryOperation", "operator": "-", "rightExpression": { "argumentTypes": null, "id": 1884, "name": "signerNameLength", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 1864, "src": "16364:16:2", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "16350:30:2", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, { "argumentTypes": null, "id": 1886, "name": "signerNameLength", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 1864, "src": "16382:16:2", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_uint256", "typeString": "uint256" }, { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" }, { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "expression": { "argumentTypes": null, "id": 1878, "name": "data", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 1856, "src": "16313:4:2", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "id": 1879, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "equals", "nodeType": "MemberAccess", "referencedDeclaration": 204, "src": "16313:11:2", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_bytes_memory_ptr_$_t_uint256_$_t_bytes_memory_ptr_$_t_uint256_$_t_uint256_$returns$_t_bool_$bound_to$_t_bytes_memory_ptr_$", "typeString": "function (bytes memory,uint256,bytes memory,uint256,uint256) pure returns (bool)" } }, "id": 1887, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "16313:86:2", "typeDescriptions": { "typeIdentifier": "t_bool", "typeString": "bool" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_bool", "typeString": "bool" } ], "id": 1877, "name": "require", "nodeType": "Identifier", "overloadedDeclarations": [ 4242, 4243 ], "referencedDeclaration": 4242, "src": "16305:7:2", "typeDescriptions": { "typeIdentifier": "t_function_require_pure$_t_bool_$returns$__$", "typeString": "function (bool) pure" } }, "id": 1888, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "16305:95:2", "typeDescriptions": { "typeIdentifier": "t_tuple$__$", "typeString": "tuple()" } }, "id": 1889, "nodeType": "ExpressionStatement", "src": "16305:95:2" }, { "assignments": [ 1891 ], "declarations": [ { "constant": false, "id": 1891, "name": "offset", "nodeType": "VariableDeclaration", "scope": 1938, "src": "16469:11:2", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "typeName": { "id": 1890, "name": "uint", "nodeType": "ElementaryTypeName", "src": "16469:4:2", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "value": null, "visibility": "internal" } ], "id": 1895, "initialValue": { "argumentTypes": null, "commonType": { "typeIdentifier": "t_uint256", "typeString": "uint256" }, "id": 1894, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "leftExpression": { "argumentTypes": null, "hexValue": "3138", "id": 1892, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "16483:2:2", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_18_by_1", "typeString": "int_const 18" }, "value": "18" }, "nodeType": "BinaryOperation", "operator": "+", "rightExpression": { "argumentTypes": null, "id": 1893, "name": "signerNameLength", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 1864, "src": "16488:16:2", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "src": "16483:21:2", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } }, "nodeType": "VariableDeclarationStatement", "src": "16469:35:2" }, { "assignments": [ 1897 ], "declarations": [ { "constant": false, "id": 1897, "name": "dnstype", "nodeType": "VariableDeclaration", "scope": 1938, "src": "16542:14:2", "stateVariable": false, "storageLocation": "default", "typeDescriptions": { "typeIdentifier": "t_uint16", "typeString": "uint16" }, "typeName": { "id": 1896, "name": "uint16", "nodeType": "ElementaryTypeName", "src": "16542:6:2", "typeDescriptions": { "typeIdentifier": "t_uint16", "typeString": "uint16" } }, "value": null, "visibility": "internal" } ], "id": 1905, "initialValue": { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "arguments": [ { "argumentTypes": null, "hexValue": "30", "id": 1902, "isConstant": false, "isLValue": false, "isPure": true, "kind": "number", "lValueRequested": false, "nodeType": "Literal", "src": "16593:1:2", "subdenomination": null, "typeDescriptions": { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" }, "value": "0" } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_rational_0_by_1", "typeString": "int_const 0" } ], "expression": { "argumentTypes": null, "id": 1900, "name": "proof", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 1860, "src": "16576:5:2", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "id": 1901, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "nameLength", "nodeType": "MemberAccess", "referencedDeclaration": 2544, "src": "16576:16:2", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_bytes_memory_ptr_$_t_uint256_$returns$_t_uint256_$bound_to$_t_bytes_memory_ptr_$", "typeString": "function (bytes memory,uint256) pure returns (uint256)" } }, "id": 1903, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "16576:19:2", "typeDescriptions": { "typeIdentifier": "t_uint256", "typeString": "uint256" } } ], "expression": { "argumentTypes": [ { "typeIdentifier": "t_uint256", "typeString": "uint256" } ], "expression": { "argumentTypes": null, "id": 1898, "name": "proof", "nodeType": "Identifier", "overloadedDeclarations": [], "referencedDeclaration": 1860, "src": "16559:5:2", "typeDescriptions": { "typeIdentifier": "t_bytes_memory_ptr", "typeString": "bytes memory" } }, "id": 1899, "isConstant": false, "isLValue": false, "isPure": false, "lValueRequested": false, "memberName": "readUint16", "nodeType": "MemberAccess", "referencedDeclaration": 326, "src": "16559:16:2", "typeDescriptions": { "typeIdentifier": "t_function_internal_pure$_t_bytes_memory_ptr_$_t_uint256_$returns$_t_uint16_$bound_to$_t_bytes_memory_ptr_$", "typeString": "function (bytes memory,uint256) pure returns (uint16)" } }, "id": 1904, "isConstant": false, "isLValue": false, "isPure": false, "kind": "functionCall", "lValueRequested": false, "names": [], "nodeType": "FunctionCall", "src": "16559:37:2", "typeDescriptions": { "typeIdentifier": "t_uint16", "typeString": "uint16" } }, "nodeType": "VariableDeclarationStatement", "src": 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"src": "22904:268:2", "stateMutability": "pure", "superFunction": null, "visibility": "internal" } ], "scope": 2396, "src": "467:22707:2" } ], "src": "0:23175:2" }, "compiler": { "name": "solc", "version": "0.5.0+commit.1d4f565a.Emscripten.clang" }, "networks": {}, "schemaVersion": "3.0.14", "updatedAt": "2019-09-02T13:26:01.077Z", "devdoc": { "methods": { "constructor": { "details": "Constructor.", "params": { "_anchors": "The binary format RR entries for the root DS records." } }, "deleteRRSet(uint16,bytes,bytes,bytes,bytes)": { "details": "Deletes an RR from the oracle.", "params": { "deleteName": "which you want to delete", "deleteType": "The DNS record type to delete.", "nsec": "The signed NSEC RRset. This is in the format described in section 5.3.2 of RFC4035: The RRDATA section from the RRSIG without the signature data, followed by a series of canonicalised RR records that the signature applies to." } }, "rrdata(uint16,bytes)": { "details": "Returns data about the RRs (if any) known to this oracle with the provided type and name.", "params": { "dnstype": "The DNS record type to query.", "name": "The name to query, in DNS label-sequence format." }, "return": "inception The unix timestamp at which the signature for this RRSET was created.inserted The unix timestamp at which this RRSET was inserted into the oracle.hash The hash of the RRset that was inserted." }, "setAlgorithm(uint8,address)": { "details": "Sets the contract address for a signature verification algorithm. Callable only by the owner.", "params": { "algo": "The address of the algorithm contract.", "id": "The algorithm ID" } }, "setDigest(uint8,address)": { "details": "Sets the contract address for a digest verification algorithm. Callable only by the owner.", "params": { "digest": "The address of the digest contract.", "id": "The digest ID" } }, "setNSEC3Digest(uint8,address)": { "details": "Sets the contract address for an NSEC3 digest algorithm. Callable only by the owner.", "params": { "digest": "The address of the digest contract.", "id": "The digest ID" } }, "submitRRSet(bytes,bytes,bytes)": { "details": "Submits a signed set of RRs to the oracle. * RRSETs are only accepted if they are signed with a key that is already trusted, or if they are self-signed, and the signing key is identified by a DS record that is already trusted.", "params": { "input": "The signed RR set. This is in the format described in section 5.3.2 of RFC4035: The RRDATA section from the RRSIG without the signature data, followed by a series of canonicalised RR records that the signature applies to.", "proof": "The DNSKEY or DS to validate the signature against. Must Already have been submitted and proved previously.", "sig": "The signature data from the RRSIG record." } }, "submitRRSets(bytes,bytes)": { "details": "Submits multiple RRSets", "params": { "_proof": "The DNSKEY or DS to validate the first signature against.", "data": "The data to submit, as a series of chunks. Each chunk is in the format " }, "return": "The last RRSET submitted." } } }, "userdoc": { "methods": {} } }