node-smb2
Version:
A SMB2 implementation in TypeScript
59 lines (58 loc) • 2.17 kB
JavaScript
;
var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
var desc = Object.getOwnPropertyDescriptor(m, k);
if (!desc || ("get" in desc ? !m.__esModule : desc.writable || desc.configurable)) {
desc = { enumerable: true, get: function() { return m[k]; } };
}
Object.defineProperty(o, k2, desc);
}) : (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
o[k2] = m[k];
}));
var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
Object.defineProperty(o, "default", { enumerable: true, value: v });
}) : function(o, v) {
o["default"] = v;
});
var __importStar = (this && this.__importStar) || function (mod) {
if (mod && mod.__esModule) return mod;
var result = {};
if (mod != null) for (var k in mod) if (k !== "default" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
__setModuleDefault(result, mod);
return result;
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.protocolIdStructureField = void 0;
const protocolIds = __importStar(require("./protocolIds"));
const structureUtil = __importStar(require("./structureUtil"));
exports.protocolIdStructureField = {
type: String,
encoding: "hex",
size: 4,
defaultValue: protocolIds.smb2
};
class Packet {
static parseProtocolId(buffer) {
return structureUtil.parseValue(buffer, exports.protocolIdStructureField);
}
static getChunks(buffer) {
const chunks = [];
while (buffer.length > 4) {
const netBiosType = buffer.readUInt8(0);
if (netBiosType !== 0x00)
throw new Error("no_net_bios_message");
const packetLength = buffer.readUInt32BE(0);
if (packetLength > buffer.length - 4)
break;
buffer = buffer.slice(4);
chunks.push(buffer.slice(0, packetLength));
buffer = buffer.slice(packetLength);
}
return {
chunks,
restChunk: buffer
};
}
}
exports.default = Packet;