easylinux/cam-reverse
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move some state to session

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This commit is contained in:
DavidVentura
2024-01-27 13:27:28 +01:00
parent 0bd35f80c1
commit 342ee29191
4 changed files with 91 additions and 60 deletions
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impl.ts
+17 -14
View File
@@ -1,7 +1,8 @@
import "./shim.ts";
import { XqBytesEnc } from "./func_replacements.js";
import { Commands } from "./datatypes.js";
import { XqBytesEnc } from "./func_replacements.js";
import { hexdump } from "./hexdump.js";
import { u16_swap } from "./utils.js";
const str2byte = (s: string): number[] => {
@@ -18,28 +19,30 @@ const CmdSndProcHdr = (start: number, cmd: number, len: number, dest: number): D
return cmdHeader;
};
const DrwHdr = (cmd: number, len: number, d1_or_d2: 0xd1 | 0xd2, m_chan: number): DataView => {
const DrwHdr = (cmd: number, len: number, d1_or_d2: 0xd1 | 0xd2, m_chan: number, pkt_id: number): DataView => {
let retret = new DataView(new Uint8Array(len + 4).buffer);
retret.writeU16(cmd);
retret.add(2).writeU16(len); // buflen -4?
retret.add(4).writeU16(u16_swap(d1_or_d2));
retret.add(6).writeU16(m_chan); // chan? hardcoded
retret.add(4).writeU8(d1_or_d2);
retret.add(5).writeU8(m_chan); // chan? hardcoded
retret.add(6).writeU16(pkt_id);
return retret;
};
export const SendUsrAck = (challenge: number[]): DataView => {
export const SendStartVideo = (pkt_id: number, challenge: number[]): DataView => {
// TODO: extract SendUsrChk
let buf = new DataView(new Uint8Array(0x18).buffer);
const seq = 0x1;
// console.log(hexdump(DrwHdr(0xf1d0, 0x0114, 0xd1, 0, pkt_id).buffer));
let bytes = [
0xf1,
0xd0,
0x01,
0x14,
0xd1,
0x00,
0x00,
seq,
0x01, // len? lower values= no response, larger values = 1 frame then kicked
0x14, // len
0xd1, // ?
0x00, // chan
pkt_id >> 8,
pkt_id,
0x11,
0x0a,
0x10,
@@ -60,7 +63,7 @@ export const SendUsrAck = (challenge: number[]): DataView => {
buf.writeByteArray(bytes);
return buf;
};
export const SendUsrChk = (username: string, password: string): DataView => {
export const SendUsrChk = (username: string, password: string, pkt_id: number): DataView => {
// type is char account[0x20]; char password[0x80];
let buf = new Uint8Array(0x20 + 0x80);
buf.fill(0);
@@ -81,7 +84,7 @@ export const SendUsrChk = (username: string, password: string): DataView => {
// need to encapsulate this into create_Drw(outbuf, 0xd1, param4?, svar1?,
// copy_len, inbuf); seems like param4/svar1 are overflowing == maybe '0xa'
// and '0x2010'??
let retret = DrwHdr(0xf1d0, 8 + 12 + len - 4, 0xd1, 0);
let retret = DrwHdr(0xf1d0, 8 + 12 + len - 4, 0xd1, 0, pkt_id);
retret.add(8).writeByteArray(new Uint8Array(ret.buffer));
return retret;
};