69 lines
1.7 KiB
JavaScript
69 lines
1.7 KiB
JavaScript
const pack_P2pHdr = (in_buf, out_buf) => {
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// shitty memcpy
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out_buf.writeByteArray(in_buf.readByteArray(4));
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//out_buf.writeU16(in_buf.readU16());
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//out_buf.add(2).writeU16(in_buf.add(2).readU16());
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return 4;
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};
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const create_LanSearch = (buf) => {
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buf.writeByteArray([0xf1, 0x30, 0x00, 0x00]);
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return 4;
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};
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const create_P2pAliveAck = (buf) => {
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buf.writeByteArray([0xf1, 0xe1, 0x00, 0x00]);
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return 4;
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};
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const create_P2pAlive = (buf) => {
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buf.writeByteArray([0xf1, 0xe0, 0x00, 0x00]);
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return 4;
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};
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const create_Hello = (buf) => {
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buf.writeU16(0xf1);
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buf.add(2).writeU16(0x0);
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};
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export const replace_func = (stub, ret, args) => {
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const name_in_elf = stub.name;
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const symbol_addr = DebugSymbol.fromName(name_in_elf).address;
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if (symbol_addr == 0) {
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console.error(`Could not find ${name_in_elf}`);
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return;
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}
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console.log(
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`Replacing ${name_in_elf}, signature "${ret} ${name_in_elf}(${args})"`,
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);
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Interceptor.replace(symbol_addr, new NativeCallback(stub, ret, args));
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};
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/* Send_Pkt_LanSearch =
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* create_LanSearch(buf)
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* pack_ClntPkt(2, buf, &packed_buf)
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* UdpPktSend(packed_buf)
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*/
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/* Send_Pkt_Hello =
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* create_Hello
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* pack_ClntPkt
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* UdpPktSend
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*/
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/* pack_ClntPkt =
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* pack_P2pHdr
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* pack_
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* RSLgnEx, RlyReq4, RlyPortAck, RlyPortExAck, RlyReqEx, Drw, HelloToAck, DrwAck, DevLgn4, LanSearchExtAck, P2pReq4, RSLGn
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*/
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export const replaceFunctions = () => {
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const replacements = [
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[create_P2pAlive, "uchar", ["pointer"]],
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[create_P2pAliveAck, "uchar", ["pointer"]],
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[create_LanSearch, "uchar", ["pointer"]],
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[create_Hello, "uchar", ["pointer"]],
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[pack_P2pHdr, "uchar", ["pointer", "pointer"]],
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];
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replacements.forEach((x) => replace_func(...x));
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return replacements.map((x) => x[0].name);
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};
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