easylinux/cam-reverse
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print decrypted values for 0xf1d0

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This commit is contained in:
DavidVentura
2024-01-28 20:16:12 +01:00
parent 07342d6629
commit 3c0f56fa8a
1 changed files with 12 additions and 3 deletions
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frida-hooks.js
+12 -3
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@@ -1,4 +1,5 @@
import { replaceFunctions, Commands, CommandsByValue } from "./func_replacements.js"; import { Commands, CommandsByValue } from "./datatypes.js";
import { replaceFunctions, XqBytesDec } from "./func_replacements.js";
import { placeholderTypes, sprintf, u16_swap } from "./utils.js"; import { placeholderTypes, sprintf, u16_swap } from "./utils.js";
const hook_fn = (name_in_elf, enter, leave) => { const hook_fn = (name_in_elf, enter, leave) => {
@@ -63,7 +64,7 @@ const hook___android_log_print = () => {
const values = types.map((t, idx) => o[t](args[idx + 3])); const values = types.map((t, idx) => o[t](args[idx + 3]));
const newStr = sprintf(fmt, values); const newStr = sprintf(fmt, values);
console.log(_tag, newStr); console.log(_tag, newStr.trim());
}, },
() => {}, () => {},
); );
@@ -92,10 +93,18 @@ const hook_udpsend = () => {
(retval) => { (retval) => {
const data = o.buf.readByteArray(retval.toInt32()); const data = o.buf.readByteArray(retval.toInt32());
const cmd = u16_swap(o.buf.readU16()); const cmd = u16_swap(o.buf.readU16());
const len = u16_swap(o.buf.add(2).readU16());
const name = CommandsByValue[cmd]; const name = CommandsByValue[cmd];
console.log(`UDP PKT RECV, cmd=${name}, 0x${cmd.toString(16)}, ret=${retval}`); console.log(`UDP PKT RECV, len=${len}, cmd=${name}, 0x${cmd.toString(16)}, ret=${retval}`);
console.log(data); console.log(data);
if (cmd == Commands.Drw) { if (cmd == Commands.Drw) {
if (len > 0x18) {
// pos(0xa11) == 8 + 0xc == 0x14 == 20
const under = data.unwrap().add(0x14); //, len - 0x20;
XqBytesDec(under, len - 0x14, 4);
console.log("decrypted data");
console.log(data);
}
} }
}, },
); );