d1c37b83e0
UI: - Theme engine (5 palettes) persisted to NVS; live Theme switcher module - Animated shell: boot splash, CRT scanlines, breathing menu cursor, wipe-in transitions, spinners, progress bars New recon modules: - Bus Dump: SPI-NOR + I2C EEPROM readout to microSD (read-only) - Crypto Lab: entropy, magic-byte file-ID, XOR brute, AES-128 known-key - Exfil: SD browser + base64 dump export over USB serial, manifest writer README updated with the new module table and look-and-feel notes. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01AAhMHMRAQLQ9hSbBECKNfn
105 lines
3.6 KiB
C++
105 lines
3.6 KiB
C++
#include "../core/module.h"
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#include "../core/ui.h"
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#include <SD.h>
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#include "mbedtls/base64.h"
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// Exfil / Export — get captured data OFF the Cardputer for analysis on
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// your workstation. Browse the SD card and stream a selected dump out
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// over USB serial as base64 (paste into `base64 -d > file` on the host).
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// Also writes a session manifest of what you pulled. A data-offload
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// helper for your own captures — not a network channel.
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class Exfil : public Module {
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static constexpr int MAXF = 32;
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char files[MAXF][32]; uint32_t sizes[MAXF]; int nf = 0, sel = 0;
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bool sending = false; File cur; uint32_t sent = 0, total = 0;
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char status[2][40] = {{0},{0}};
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public:
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const char* name() const override { return "Exfil"; }
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const char* blurb() const override { return "export dumps->host"; }
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void onEnter() override { sending=false; if (!SD.begin()) say("no SD"); else scan(); }
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void onExit() override { if (cur) cur.close(); sending=false; }
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bool onKey(char c) override {
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if (sending) { if (c==' ') stop(); return true; }
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int m = nf ? nf : 1;
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if (c == ';') { sel = (sel-1+m)%m; return true; }
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if (c == '.') { sel = (sel+1)%m; return true; }
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if (c == 'r') { scan(); return true; }
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if (c == '\r' || c == ' ') { startSend(); return true; }
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if (c == 'x') { writeManifest(); return true; }
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return false;
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}
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void tick() override {
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if (!sending) return;
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uint8_t in[48]; int n = cur.read(in, sizeof(in));
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if (n <= 0) { Serial.println(); say("done: %s", files[sel]); stop(); return; }
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unsigned char out[80]; size_t olen = 0;
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mbedtls_base64_encode(out, sizeof(out), &olen, in, n);
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Serial.write(out, olen);
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sent += n;
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}
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void draw() override {
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ui::lineC(0, ui::accent(), "SD export %s", sending ? "STREAMING" : "browse");
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if (sending) {
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ui::bar(1, total ? sent/(float)total : 0, ui::glow(), "b64->usb");
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} else {
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for (int i = 0; i < nf && i < 5; i++)
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ui::lineC(1+i, i==sel ? ui::glow() : ui::fg(), "%c %-16s %luB",
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i==sel?char(0x10):' ', files[i], (unsigned long)sizes[i]);
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if (!nf) ui::line(1, "no files in /dump");
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}
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for (int i = 0; i < 2; i++) ui::line(6+i, "%s", status[i]);
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ui::hintBar("; . pick enter send [x]manifest [`]back");
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}
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private:
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void say(const char* fmt, ...) {
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strncpy(status[1], status[0], 39);
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va_list ap; va_start(ap,fmt); vsnprintf(status[0],40,fmt,ap); va_end(ap);
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}
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void scan() {
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nf = 0; sel = 0;
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File d = SD.open("/dump");
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if (!d) { say("no /dump dir"); return; }
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File f;
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while ((f = d.openNextFile()) && nf < MAXF) {
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if (!f.isDirectory()) {
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strncpy(files[nf], f.name(), 31);
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sizes[nf] = f.size();
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nf++;
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}
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f.close();
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}
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d.close();
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say("%d file(s)", nf);
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}
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void startSend() {
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if (!nf) { say("nothing to send"); return; }
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char path[48]; snprintf(path, sizeof(path), "/dump/%s", files[sel]);
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cur = SD.open(path, FILE_READ);
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if (!cur) { say("open fail"); return; }
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total = sizes[sel]; sent = 0; sending = true;
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Serial.printf("\n----- BEGIN %s (base64) -----\n", files[sel]);
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say("streaming %s", files[sel]);
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}
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void stop() {
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if (cur) cur.close();
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Serial.printf("\n----- END -----\n");
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sending = false;
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}
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void writeManifest() {
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File m = SD.open("/dump/MANIFEST.txt", FILE_WRITE);
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if (!m) { say("manifest fail"); return; }
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m.printf("Card-Crack export manifest\n");
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for (int i = 0; i < nf; i++) m.printf("%-20s %lu B\n", files[i], (unsigned long)sizes[i]);
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m.close();
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say("wrote MANIFEST.txt");
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}
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};
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Module* makeExfil() { return new Exfil(); }
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