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harness/fontwork: reproduction scripts for the TFTP Disk-full investigation

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Isolated-netns test setup (a private tap-mess-0-0 so a second MAME can run
without holding the owner's tap), the one-file/one-index TFTP servers, the
trace/probe run wrappers, and the two server logs quoted in
FONT_STORAGE_REPORT.md.
This commit is contained in:
arti committed 2026-10-16 22:03:49 +03:00
1 parent 7efb4880f0
commit 3a51b95317
18 files changed
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harness/mame/fontwork/custom_serve.py
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#!/usr/bin/env python3
"""fontwork server: serve ONE chosen file for every requested name.
Used to test whether the terminal's TFTP abort is a size/capacity effect: the
same name ('69') is served as the 680-byte baseline or as a small file, and we
watch whether the transfer completes. Uses the project's own TFTPServer class.
python3 custom_serve.py <file-to-serve> [bind-ip]
"""
import os
import sys
import time
ROOT = "/home/arti/code/k-space/vt1200"
sys.path.insert(0, os.path.join(ROOT, "tools"))
import fontgen # noqa: E402
src = sys.argv[1]
host = sys.argv[2] if len(sys.argv) > 2 else "192.168.99.1"
with open(src, "rb") as fh:
blob = fh.read()
print(f"serving {src} ({len(blob)} bytes) as EVERY name on {host}:69", flush=True)
srv = fontgen.TFTPServer((host, 69), {}, timeout=60.0, retries=10,
resolver=lambda name: blob).start()
try:
while True:
time.sleep(0.5)
while srv.log:
ts, name, addr = srv.log.pop(0)
stamp = time.strftime("%H:%M:%S", time.localtime(ts))
print(f"{stamp} {addr[0]}:{addr[1]} requested {name!r}", flush=True)
except KeyboardInterrupt:
pass
finally:
srv.stop()
harness/mame/fontwork/custom_serve3.py
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#!/usr/bin/env python3
"""fontwork index-then-font server.
Serves a small (<512-byte, one-block) directory index for the font path, which
names 'evil.pcf', and serves the crafted font for that name. This isolates the
font fetch from the one-block index fetch so we can see whether a completed
multi-block font transfer parses.
python3 custom_serve3.py [bind-ip] [index-name]
"""
import os
import sys
import time
ROOT = "/home/arti/code/k-space/vt1200"
sys.path.insert(0, os.path.join(ROOT, "tools"))
import fontgen # noqa: E402
host = sys.argv[1] if len(sys.argv) > 1 else "192.168.99.1"
index_name = sys.argv[2] if len(sys.argv) > 2 else "evil.pcf"
with open(os.path.join(ROOT, "reference/fonts/evil-real.pcf"), "rb") as fh:
evil = fh.read()
index = (index_name + "\n").encode()
print(f"index={index!r} ({len(index)} bytes); font {index_name} = {len(evil)} bytes", flush=True)
def resolve(name):
if name == "69" or name.endswith("fonts.dir") or name.endswith("/"):
return index
if index_name in name or "evil" in name:
return evil
return index
srv = fontgen.TFTPServer((host, 69), {}, timeout=60.0, retries=10,
resolver=resolve).start()
try:
while True:
time.sleep(0.5)
while srv.log:
ts, name, addr = srv.log.pop(0)
stamp = time.strftime("%H:%M:%S", time.localtime(ts))
print(f"{stamp} {addr[0]}:{addr[1]} requested {name!r}", flush=True)
except KeyboardInterrupt:
pass
finally:
srv.stop()
harness/mame/fontwork/custom_serve4.py
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#!/usr/bin/env python3
"""fontwork index-then-font server (v4).
Serves the project's real fonts.dir verbatim for the font path and for
'<path>/fonts.dir', and serves the crafted multi-block font for the font name
listed in that index (and for anything else that looks like a file). This is
the closest reproduction of the owner's intended flow with a valid, one-block
index, so we can see whether the crafted font's own transfer completes.
"""
import os
import sys
import time
ROOT = "/home/arti/code/k-space/vt1200"
sys.path.insert(0, os.path.join(ROOT, "tools"))
import fontgen # noqa: E402
host = sys.argv[1] if len(sys.argv) > 1 else "192.168.99.1"
with open(os.path.join(ROOT, "reference/fonts/fonts.dir"), "rb") as fh:
fonts_dir = fh.read()
with open(os.path.join(ROOT, "reference/fonts/evil-real.pcf"), "rb") as fh:
evil = fh.read()
print(f"fonts.dir={fonts_dir!r}; font -> evil-real.pcf ({len(evil)} bytes)", flush=True)
def resolve(name):
if name.endswith("fonts.dir") or name == "69":
return fonts_dir
return evil
srv = fontgen.TFTPServer((host, 69), {}, timeout=60.0, retries=10,
resolver=resolve).start()
try:
while True:
time.sleep(0.5)
while srv.log:
ts, name, addr = srv.log.pop(0)
stamp = time.strftime("%H:%M:%S", time.localtime(ts))
print(f"{stamp} {addr[0]}:{addr[1]} requested {name!r}", flush=True)
except KeyboardInterrupt:
pass
finally:
srv.stop()
harness/mame/fontwork/custom_serve5.py
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#!/usr/bin/env python3
"""fontwork: drive the font reader with the crafted 25 KB font.
Serves baseline.pcf for the path/index names (so the terminal, reading the
first bytes of the path object as a name, asks for the PCF-magic name) and the
crafted 25,860-byte font for everything else. That makes the terminal's own
font reader fetch a many-block file, which is the transfer the crash work needs.
"""
import os
import sys
import time
ROOT = "/home/arti/code/k-space/vt1200"
sys.path.insert(0, os.path.join(ROOT, "tools"))
import fontgen # noqa: E402
host = sys.argv[1] if len(sys.argv) > 1 else "192.168.99.1"
with open(os.path.join(ROOT, "reference/fonts/baseline.pcf"), "rb") as fh:
base = fh.read()
with open(os.path.join(ROOT, "reference/fonts/evil-real.pcf"), "rb") as fh:
evil = fh.read()
print(f"path={len(base)}B baseline; font name -> {len(evil)}B evil-real.pcf", flush=True)
def resolve(name):
if name == "69" or name.endswith("fonts.dir"):
return base
return evil
srv = fontgen.TFTPServer((host, 69), {}, timeout=60.0, retries=10,
resolver=resolve).start()
try:
while True:
time.sleep(0.5)
while srv.log:
ts, name, addr = srv.log.pop(0)
stamp = time.strftime("%H:%M:%S", time.localtime(ts))
print(f"{stamp} {addr[0]}:{addr[1]} requested {name!r}", flush=True)
except KeyboardInterrupt:
pass
finally:
srv.stop()
harness/mame/fontwork/custom_serve_ram.log
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path=680B baseline; font name -> 25860B evil-real.pcf
tftp: client aborted transfer: '\x00\x03Disk full or allocation exceeded'
tftp: client aborted transfer: '\x00\x03Disk full or allocation exceeded'
22:00:11 192.168.99.2:1025 requested '69'
22:00:11 192.168.99.2:1026 requested '69/fonts.dir'
22:00:11 192.168.99.2:1027 requested '\x01fcp'
tftp: client aborted transfer: '\x00\x03Disk full or allocation exceeded'
harness/mame/fontwork/netns_up.sh
Executable
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#!/usr/bin/env bash
# Isolated test network: a persistent tap inside a netns, so our MAME can run
# without holding the owner's `tap-mess-1000-0`. The MAME process runs as root
# inside the namespace, so its taptun asks for `tap-mess-0-0` (uid 0).
set -euo pipefail
NS=vt1test
sudo -n ip netns del "$NS" 2>/dev/null || true
sudo -n ip netns add "$NS"
sudo -n ip netns exec "$NS" ip link set lo up
sudo -n ip netns exec "$NS" ip tuntap add dev tap-mess-0-0 mode tap
sudo -n ip netns exec "$NS" ip addr add 192.168.99.1/24 dev tap-mess-0-0
sudo -n ip netns exec "$NS" ip link set tap-mess-0-0 up || true
echo "netns $NS ready:"
sudo -n ip netns exec "$NS" ip -br addr
harness/mame/fontwork/run_custom.sh
Executable
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#!/usr/bin/env bash
# Serve ONE chosen file for every TFTP name inside the isolated netns and boot
# the terminal, capturing the wire. Usage:
# run_custom.sh <file> [seconds]
set -euo pipefail
NS=vt1test
ROOT=/home/arti/code/k-space/vt1200
WORK=$ROOT/harness/mame/fontwork
FILE="$1"
SECS="${2:-30}"
TAG="$(basename "$FILE")"
sudo -n ip netns exec "$NS" pkill -f 'custom_serve.py' 2>/dev/null || true
sudo -n ip netns exec "$NS" pkill -f 'harness/serve.py' 2>/dev/null || true
sudo -n ip netns exec "$NS" pkill -x vt1200 2>/dev/null || true
sleep 0.3
# fresh NVR copy per test (the OS rewrites settings during boot)
rm -rf "$WORK/nvram-$TAG"
mkdir -p "$WORK/nvram-$TAG/vt1200"
cp "$WORK/nvram_pristine.bin" "$WORK/nvram-$TAG/vt1200/nvram"
sudo -n ip netns exec "$NS" python3 -u "$WORK/custom_serve.py" "$FILE" 192.168.99.1 \
>"$WORK/custom_serve.log" 2>&1 &
SRV=$!
sleep 1.2
sudo -n ip netns exec "$NS" timeout $((SECS+6)) tcpdump -i tap-mess-0-0 -n -s0 \
'udp port 69' -w "$WORK/custom_$TAG.pcap" 2>/dev/null &
sleep 0.3
timeout $((SECS+8)) sudo -n ip netns exec "$NS" env -u DISPLAY \
SDL_VIDEODRIVER=dummy SDL_AUDIODRIVER=dummy \
XDG_RUNTIME_DIR="$WORK" VT1200_SKIP_LEVEL1=1 \
/home/arti/code/k-space/mame0289/vt1200 vt1200 \
-rompath "$ROOT/harness/mame/roms" -video none -sound none -nothrottle \
-skip_gameinfo -cfg_directory "$ROOT/harness/mame/cfg-net" \
-nvram_directory "$WORK/nvram-$TAG" -networkprovider taptun \
-seconds_to_run "$SECS" >"$WORK/mame_$TAG.log" 2>&1 || true
sudo -n ip netns exec "$NS" pkill -f 'custom_serve.py' 2>/dev/null || true
wait $SRV 2>/dev/null || true
sleep 2; sudo -n pkill -x tcpdump 2>/dev/null || true
echo "=== $TAG server log ==="
cat "$WORK/custom_serve.log"
echo "=== $TAG pcap ==="
sudo -n tcpdump -r "$WORK/custom_$TAG.pcap" -n 2>/dev/null | tail -25
harness/mame/fontwork/run_probe.sh
Executable
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#!/usr/bin/env bash
# Probe run: same isolated netns test, but with the debugger and fontprobe.lua so
# the tftp_read capacity check reports live register values into debug.log.
set -euo pipefail
NS=vt1test
ROOT=/home/arti/code/k-space/vt1200
WORK=$ROOT/harness/mame/fontwork
SECS="${1:-20}"; shift || true
sudo -n ip netns exec "$NS" pkill -f 'harness/serve.py' 2>/dev/null || true
sudo -n ip netns exec "$NS" pkill -x vt1200 2>/dev/null || true
sleep 0.3
sudo -n ip netns exec "$NS" python3 -u "$ROOT/harness/serve.py" 192.168.99.1 --bootp \
>"$WORK/serve.log" 2>&1 &
SRV=$!
sleep 1.5
cd "$ROOT"
timeout $((SECS+15)) sudo -n ip netns exec "$NS" env -u DISPLAY \
SDL_VIDEODRIVER=dummy SDL_AUDIODRIVER=dummy \
XDG_RUNTIME_DIR="$WORK" VT1200_SKIP_LEVEL1=1 \
/home/arti/code/k-space/mame0289/vt1200 vt1200 \
-rompath "$ROOT/harness/mame/roms" -video none -sound none -nothrottle \
-skip_gameinfo -cfg_directory "$ROOT/harness/mame/cfg-net" \
-nvram_directory "$WORK/nvram" -networkprovider taptun \
-debug -debugger none -debuglog \
-autoboot_script "$ROOT/harness/mame/fontprobe.lua" -autoboot_delay 0 \
-seconds_to_run "$SECS" "$@" >"$WORK/mame_probe.log" 2>&1 || true
sudo -n ip netns exec "$NS" pkill -f 'harness/serve.py' 2>/dev/null || true
wait $SRV 2>/dev/null || true
echo "=== debug.log: tftp_read ==="
grep -E 'TFTP-READ-ENTRY|CHK |BUFSIZE-ERR|SEND-ERROR-3|GOT-ERROR-PKT' "$WORK/../debug.log" 2>/dev/null | head -60 || true
echo "=== serve.log ==="
grep -vE 'screen_update|scanline|guard#' "$WORK/serve.log" | tail -10
harness/mame/fontwork/run_probe5.sh
Executable
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#!/usr/bin/env bash
set -euo pipefail
NS=vt1test
ROOT=/home/arti/code/k-space/vt1200
WORK=$ROOT/harness/mame/fontwork
SECS="${1:-30}"
sudo -n ip netns exec "$NS" pkill -x vt1200 2>/dev/null || true
sudo -n ip netns exec "$NS" pkill -x python3 2>/dev/null || true
sleep 0.3
rm -rf "$WORK/nvram-c3" "$ROOT/debug.log"
mkdir -p "$WORK/nvram-c3/vt1200"; cp "$WORK/nvram_pristine.bin" "$WORK/nvram-c3/vt1200/nvram"
sudo -n ip netns exec "$NS" python3 -u "$WORK/custom_serve5.py" 192.168.99.1 >"$WORK/serve5.log" 2>&1 &
SRV=$!; sleep 1.2
sudo -n ip netns exec "$NS" timeout $((SECS+6)) tcpdump -i tap-mess-0-0 -n -s0 'udp port 69' -w "$WORK/serve5.pcap" 2>/dev/null &
sleep 0.3
cd "$ROOT"
timeout $((SECS+12)) sudo -n ip netns exec "$NS" env -u DISPLAY SDL_VIDEODRIVER=dummy SDL_AUDIODRIVER=dummy XDG_RUNTIME_DIR="$WORK" VT1200_SKIP_LEVEL1=1 \
/home/arti/code/k-space/mame0289/vt1200 vt1200 -rompath "$ROOT/harness/mame/roms" -video none -sound none -nothrottle \
-skip_gameinfo -cfg_directory "$ROOT/harness/mame/cfg-net" -nvram_directory "$WORK/nvram-c3" -networkprovider taptun \
-debug -debugger none -debuglog -autoboot_script "$ROOT/harness/mame/fontprobe.lua" -autoboot_delay 0 \
-seconds_to_run "$SECS" >"$WORK/mame_trace3.log" 2>&1 || true
kill $SRV 2>/dev/null || true
sudo -n ip netns exec "$NS" pkill -x python3 2>/dev/null || true
sleep 1; sudo -n pkill -x tcpdump 2>/dev/null || true
echo "=== server ==="; cat "$WORK/serve5.log"
echo "=== trace ==="; grep -E 'TFTP-ENTRY|EXPECTED|RECV|OPCODE|BLKCHK|ACK|COPY|READ-RET|OPEN-OK|CLOSE' "$ROOT/debug.log" | head -140
echo "=== pcap tail ==="; sudo -n tcpdump -r "$WORK/serve5.pcap" -n 2>/dev/null | tail -30
harness/mame/fontwork/run_ramdump.sh
Executable
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#!/usr/bin/env bash
# One-off: boot with the baseline-as-every-name server and dump main RAM at
# frames 390/391/392 so the TFTP client's own globals and buffers can be read
# directly from the dump.
set -euo pipefail
NS=vt1test
ROOT=/home/arti/code/k-space/vt1200
WORK=$ROOT/harness/mame/fontwork
FILE="${1:-$ROOT/reference/fonts/baseline.pcf}"
SECS="${2:-25}"
sudo -n ip netns exec "$NS" pkill -x vt1200 2>/dev/null || true
sudo -n ip netns exec "$NS" pkill -x python3 2>/dev/null || true
sleep 0.3
rm -rf "$WORK/nvram-ram3" "$WORK/ram3"
mkdir -p "$WORK/nvram-ram3/vt1200" "$WORK/ram3"
cp "$WORK/nvram_pristine.bin" "$WORK/nvram-ram3/vt1200/nvram"
sudo -n ip netns exec "$NS" python3 -u "$WORK/custom_serve5.py" 192.168.99.1 \
>"$WORK/custom_serve_ram.log" 2>&1 &
SRV=$!
sleep 1.2
timeout $((SECS+10)) sudo -n ip netns exec "$NS" env -u DISPLAY \
SDL_VIDEODRIVER=dummy SDL_AUDIODRIVER=dummy \
XDG_RUNTIME_DIR="$WORK" VT1200_SKIP_LEVEL1=1 \
VT1200_DUMP_RAM_FRAMES=394,395,396 VT1200_DUMP_DIR="$WORK/ram3" \
/home/arti/code/k-space/mame0289/vt1200 vt1200 \
-rompath "$ROOT/harness/mame/roms" -video none -sound none -nothrottle \
-skip_gameinfo -cfg_directory "$ROOT/harness/mame/cfg-net" \
-nvram_directory "$WORK/nvram-ram3" -networkprovider taptun \
-seconds_to_run "$SECS" >"$WORK/mame_ram.log" 2>&1 || true
kill $SRV 2>/dev/null || true
sudo -n ip netns exec "$NS" pkill -x python3 2>/dev/null || true
ls -la "$WORK/ram/"
grep -E 'dumped' "$WORK/mame_ram.log" || true
echo "--- server log ---"; cat "$WORK/custom_serve_ram.log"
harness/mame/fontwork/run_test.sh
Executable
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#!/usr/bin/env bash
# Run an isolated VT1200 fetch test: our own TFTP+BOOTP server and our own MAME,
# both inside netns vt1test on its private tap. Captures the wire.
#
# harness/mame/fontwork/run_test.sh [seconds] [extra MAME args...]
set -euo pipefail
NS=vt1test
ROOT=/home/arti/code/k-space/vt1200
WORK=$ROOT/harness/mame/fontwork
SECS="${1:-40}"; shift || true
sudo -n ip netns exec "$NS" pkill -f 'harness/serve.py' 2>/dev/null || true
sudo -n ip netns exec "$NS" pkill -x vt1200 2>/dev/null || true
sleep 0.3
sudo -n ip netns exec "$NS" python3 -u "$ROOT/harness/serve.py" 192.168.99.1 --bootp \
>"$WORK/serve.log" 2>&1 &
SRV=$!
sleep 1.5
sudo -n ip netns exec "$NS" timeout $((SECS+8)) tcpdump -i tap-mess-0-0 -n -s0 \
'udp port 69 or udp port 67 or udp port 68' -w "$WORK/run.pcap" 2>"$WORK/tcpdump.err" &
sleep 0.5
cd "$ROOT"
timeout $((SECS+10)) sudo -n ip netns exec "$NS" env -u DISPLAY \
SDL_VIDEODRIVER=dummy SDL_AUDIODRIVER=dummy \
XDG_RUNTIME_DIR="$WORK" VT1200_SKIP_LEVEL1=1 \
/home/arti/code/k-space/mame0289/vt1200 vt1200 \
-rompath "$ROOT/harness/mame/roms" -video none -sound none -nothrottle \
-skip_gameinfo -cfg_directory "$ROOT/harness/mame/cfg-net" \
-nvram_directory "$WORK/nvram" -networkprovider taptun \
-seconds_to_run "$SECS" "$@" >"$WORK/mame.log" 2>&1 || true
sleep 1
sudo -n ip netns exec "$NS" pkill -f 'harness/serve.py' 2>/dev/null || true
wait $SRV 2>/dev/null || true
echo "=== serve.log (tail) ==="
grep -vE 'screen_update|scanline|guard#' "$WORK/serve.log" | tail -40
echo "=== pcap summary ==="
sudo -n tcpdump -r "$WORK/run.pcap" -n 2>/dev/null | tail -40
harness/mame/fontwork/run_trace.sh
Executable
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#!/usr/bin/env bash
# Boot with fonttrace.lua + the chosen custom server and collect debug.log.
set -euo pipefail
NS=vt1test
ROOT=/home/arti/code/k-space/vt1200
WORK=$ROOT/harness/mame/fontwork
FILE="${1:-$ROOT/reference/fonts/baseline.pcf}"
SECS="${2:-20}"; TAG="$(basename "$FILE")"
sudo -n ip netns exec "$NS" pkill -x vt1200 2>/dev/null || true
sudo -n ip netns exec "$NS" pkill -x python3 2>/dev/null || true
sleep 0.3
rm -rf "$WORK/nvram-$TAG" "$ROOT/debug.log"
mkdir -p "$WORK/nvram-$TAG/vt1200"
cp "$WORK/nvram_pristine.bin" "$WORK/nvram-$TAG/vt1200/nvram"
sudo -n ip netns exec "$NS" python3 -u "$WORK/custom_serve.py" "$FILE" 192.168.99.1 \
>"$WORK/custom_serve_$TAG.log" 2>&1 &
SRV=$!
sleep 1.2
cd "$ROOT"
timeout $((SECS+12)) sudo -n ip netns exec "$NS" env -u DISPLAY \
SDL_VIDEODRIVER=dummy SDL_AUDIODRIVER=dummy \
XDG_RUNTIME_DIR="$WORK" VT1200_SKIP_LEVEL1=1 \
/home/arti/code/k-space/mame0289/vt1200 vt1200 \
-rompath "$ROOT/harness/mame/roms" -video none -sound none -nothrottle \
-skip_gameinfo -cfg_directory "$ROOT/harness/mame/cfg-net" \
-nvram_directory "$WORK/nvram-$TAG" -networkprovider taptun \
-debug -debugger none -debuglog \
-autoboot_script "$ROOT/harness/mame/fonttrace.lua" -autoboot_delay 0 \
-seconds_to_run "$SECS" >"$WORK/mame_trace.log" 2>&1 || true
kill $SRV 2>/dev/null || true
sudo -n ip netns exec "$NS" pkill -x python3 2>/dev/null || true
echo "=== server ==="; cat "$WORK/custom_serve_$TAG.log"
echo "=== trace ==="; grep -E 'TFTP-ENTRY|EXPECTED|RECV|OPCODE|BLKREAD|BLKCHK|ACK|COPY|READ-RET|OPEN-OK|CLOSE' "$ROOT/debug.log" | head -80
harness/mame/fontwork/run_trace3.sh
Executable
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#!/usr/bin/env bash
set -euo pipefail
NS=vt1test
ROOT=/home/arti/code/k-space/vt1200
WORK=$ROOT/harness/mame/fontwork
SECS="${1:-30}"
sudo -n ip netns exec "$NS" pkill -x vt1200 2>/dev/null || true
sudo -n ip netns exec "$NS" pkill -x python3 2>/dev/null || true
sleep 0.3
rm -rf "$WORK/nvram-c3" "$ROOT/debug.log"
mkdir -p "$WORK/nvram-c3/vt1200"; cp "$WORK/nvram_pristine.bin" "$WORK/nvram-c3/vt1200/nvram"
sudo -n ip netns exec "$NS" python3 -u "$WORK/custom_serve3.py" 192.168.99.1 >"$WORK/serve3.log" 2>&1 &
SRV=$!; sleep 1.2
sudo -n ip netns exec "$NS" timeout $((SECS+6)) tcpdump -i tap-mess-0-0 -n -s0 'udp port 69' -w "$WORK/serve3.pcap" 2>/dev/null &
sleep 0.3
cd "$ROOT"
timeout $((SECS+12)) sudo -n ip netns exec "$NS" env -u DISPLAY SDL_VIDEODRIVER=dummy SDL_AUDIODRIVER=dummy XDG_RUNTIME_DIR="$WORK" VT1200_SKIP_LEVEL1=1 \
/home/arti/code/k-space/mame0289/vt1200 vt1200 -rompath "$ROOT/harness/mame/roms" -video none -sound none -nothrottle \
-skip_gameinfo -cfg_directory "$ROOT/harness/mame/cfg-net" -nvram_directory "$WORK/nvram-c3" -networkprovider taptun \
-debug -debugger none -debuglog -autoboot_script "$ROOT/harness/mame/fonttrace.lua" -autoboot_delay 0 \
-seconds_to_run "$SECS" >"$WORK/mame_trace3.log" 2>&1 || true
kill $SRV 2>/dev/null || true
sudo -n ip netns exec "$NS" pkill -x python3 2>/dev/null || true
sleep 1; sudo -n pkill -x tcpdump 2>/dev/null || true
echo "=== server ==="; cat "$WORK/serve3.log"
echo "=== trace ==="; grep -E 'TFTP-ENTRY|EXPECTED|RECV|OPCODE|BLKCHK|ACK|COPY|READ-RET|OPEN-OK|CLOSE' "$ROOT/debug.log" | head -140
echo "=== pcap tail ==="; sudo -n tcpdump -r "$WORK/serve3.pcap" -n 2>/dev/null | tail -30
harness/mame/fontwork/run_trace4.sh
Executable
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#!/usr/bin/env bash
set -euo pipefail
NS=vt1test
ROOT=/home/arti/code/k-space/vt1200
WORK=$ROOT/harness/mame/fontwork
SECS="${1:-30}"
sudo -n ip netns exec "$NS" pkill -x vt1200 2>/dev/null || true
sudo -n ip netns exec "$NS" pkill -x python3 2>/dev/null || true
sleep 0.3
rm -rf "$WORK/nvram-c3" "$ROOT/debug.log"
mkdir -p "$WORK/nvram-c3/vt1200"; cp "$WORK/nvram_pristine.bin" "$WORK/nvram-c3/vt1200/nvram"
sudo -n ip netns exec "$NS" python3 -u "$WORK/custom_serve4.py" 192.168.99.1 >"$WORK/serve4.log" 2>&1 &
SRV=$!; sleep 1.2
sudo -n ip netns exec "$NS" timeout $((SECS+6)) tcpdump -i tap-mess-0-0 -n -s0 'udp port 69' -w "$WORK/serve4.pcap" 2>/dev/null &
sleep 0.3
cd "$ROOT"
timeout $((SECS+12)) sudo -n ip netns exec "$NS" env -u DISPLAY SDL_VIDEODRIVER=dummy SDL_AUDIODRIVER=dummy XDG_RUNTIME_DIR="$WORK" VT1200_SKIP_LEVEL1=1 \
/home/arti/code/k-space/mame0289/vt1200 vt1200 -rompath "$ROOT/harness/mame/roms" -video none -sound none -nothrottle \
-skip_gameinfo -cfg_directory "$ROOT/harness/mame/cfg-net" -nvram_directory "$WORK/nvram-c3" -networkprovider taptun \
-debug -debugger none -debuglog -autoboot_script "$ROOT/harness/mame/fonttrace.lua" -autoboot_delay 0 \
-seconds_to_run "$SECS" >"$WORK/mame_trace3.log" 2>&1 || true
kill $SRV 2>/dev/null || true
sudo -n ip netns exec "$NS" pkill -x python3 2>/dev/null || true
sleep 1; sudo -n pkill -x tcpdump 2>/dev/null || true
echo "=== server ==="; cat "$WORK/serve4.log"
echo "=== trace ==="; grep -E 'TFTP-ENTRY|EXPECTED|RECV|OPCODE|BLKCHK|ACK|COPY|READ-RET|OPEN-OK|CLOSE' "$ROOT/debug.log" | head -140
echo "=== pcap tail ==="; sudo -n tcpdump -r "$WORK/serve4.pcap" -n 2>/dev/null | tail -30
harness/mame/fontwork/run_trace5.sh
Executable
+27
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#!/usr/bin/env bash
set -euo pipefail
NS=vt1test
ROOT=/home/arti/code/k-space/vt1200
WORK=$ROOT/harness/mame/fontwork
SECS="${1:-30}"
sudo -n ip netns exec "$NS" pkill -x vt1200 2>/dev/null || true
sudo -n ip netns exec "$NS" pkill -x python3 2>/dev/null || true
sleep 0.3
rm -rf "$WORK/nvram-c3" "$ROOT/debug.log"
mkdir -p "$WORK/nvram-c3/vt1200"; cp "$WORK/nvram_pristine.bin" "$WORK/nvram-c3/vt1200/nvram"
sudo -n ip netns exec "$NS" python3 -u "$WORK/custom_serve5.py" 192.168.99.1 >"$WORK/serve5.log" 2>&1 &
SRV=$!; sleep 1.2
sudo -n ip netns exec "$NS" timeout $((SECS+6)) tcpdump -i tap-mess-0-0 -n -s0 'udp port 69' -w "$WORK/serve5.pcap" 2>/dev/null &
sleep 0.3
cd "$ROOT"
timeout $((SECS+12)) sudo -n ip netns exec "$NS" env -u DISPLAY SDL_VIDEODRIVER=dummy SDL_AUDIODRIVER=dummy XDG_RUNTIME_DIR="$WORK" VT1200_SKIP_LEVEL1=1 \
/home/arti/code/k-space/mame0289/vt1200 vt1200 -rompath "$ROOT/harness/mame/roms" -video none -sound none -nothrottle \
-skip_gameinfo -cfg_directory "$ROOT/harness/mame/cfg-net" -nvram_directory "$WORK/nvram-c3" -networkprovider taptun \
-debug -debugger none -debuglog -autoboot_script "$ROOT/harness/mame/fonttrace.lua" -autoboot_delay 0 \
-seconds_to_run "$SECS" >"$WORK/mame_trace3.log" 2>&1 || true
kill $SRV 2>/dev/null || true
sudo -n ip netns exec "$NS" pkill -x python3 2>/dev/null || true
sleep 1; sudo -n pkill -x tcpdump 2>/dev/null || true
echo "=== server ==="; cat "$WORK/serve5.log"
echo "=== trace ==="; grep -E 'TFTP-ENTRY|EXPECTED|RECV|OPCODE|BLKCHK|ACK|COPY|READ-RET|OPEN-OK|CLOSE' "$ROOT/debug.log" | head -140
echo "=== pcap tail ==="; sudo -n tcpdump -r "$WORK/serve5.pcap" -n 2>/dev/null | tail -30
harness/mame/fontwork/run_trace_serve.sh
Executable
+42
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#!/usr/bin/env bash
# The owner's exact server (harness/serve.py) + fonttrace.lua, in the isolated
# namespace. Capture + trace + server log in one run.
set -euo pipefail
NS=vt1test
ROOT=/home/arti/code/k-space/vt1200
WORK=$ROOT/harness/mame/fontwork
SECS="${1:-25}"
sudo -n ip netns exec "$NS" pkill -x vt1200 2>/dev/null || true
sudo -n ip netns exec "$NS" pkill -x python3 2>/dev/null || true
sleep 0.3
rm -rf "$WORK/nvram-serve" "$ROOT/debug.log"
mkdir -p "$WORK/nvram-serve/vt1200"
cp "$WORK/nvram_pristine.bin" "$WORK/nvram-serve/vt1200/nvram"
sudo -n ip netns exec "$NS" python3 -u "$ROOT/harness/serve.py" 192.168.99.1 --bootp \
>"$WORK/serve_real.log" 2>&1 &
SRV=$!
sleep 1.2
sudo -n ip netns exec "$NS" timeout $((SECS+6)) tcpdump -i tap-mess-0-0 -n -s0 \
'udp port 69' -w "$WORK/serve_real.pcap" 2>/dev/null &
sleep 0.3
cd "$ROOT"
timeout $((SECS+12)) sudo -n ip netns exec "$NS" env -u DISPLAY \
SDL_VIDEODRIVER=dummy SDL_AUDIODRIVER=dummy \
XDG_RUNTIME_DIR="$WORK" VT1200_SKIP_LEVEL1=1 \
/home/arti/code/k-space/mame0289/vt1200 vt1200 \
-rompath "$ROOT/harness/mame/roms" -video none -sound none -nothrottle \
-skip_gameinfo -cfg_directory "$ROOT/harness/mame/cfg-net" \
-nvram_directory "$WORK/nvram-serve" -networkprovider taptun \
-debug -debugger none -debuglog \
-autoboot_script "$ROOT/harness/mame/fonttrace.lua" -autoboot_delay 0 \
-seconds_to_run "$SECS" >"$WORK/mame_trace_serve.log" 2>&1 || true
kill $SRV 2>/dev/null || true
sudo -n ip netns exec "$NS" pkill -x python3 2>/dev/null || true
sleep 1; sudo -n pkill -x tcpdump 2>/dev/null || true
echo "=== server ==="; grep -vE 'screen_update|scanline|guard#' "$WORK/serve_real.log" | tail -20
echo "=== trace ==="; grep -E 'TFTP-ENTRY|EXPECTED|RECV|OPCODE|BLKREAD|BLKCHK|ACK|COPY|READ-RET|OPEN-OK|CLOSE' "$ROOT/debug.log" | head -120
echo "=== pcap (tail) ==="; sudo -n tcpdump -r "$WORK/serve_real.pcap" -n 2>/dev/null | tail -30
harness/mame/fontwork/serve5.log
+7
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path=680B baseline; font name -> 25860B evil-real.pcf
tftp: client aborted transfer: '\x00\x03Disk full or allocation exceeded'
tftp: client aborted transfer: '\x00\x03Disk full or allocation exceeded'
22:00:37 192.168.99.2:1025 requested '69'
22:00:37 192.168.99.2:1026 requested '69/fonts.dir'
22:00:37 192.168.99.2:1027 requested '\x01fcp'
tftp: client aborted transfer: '\x00\x03Disk full or allocation exceeded'
harness/mame/fontwork/serve_real.log
+7
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serving 29 names on ('192.168.99.1', 69)
names: 69, 69/baseline.pcf, 69/evil.pcf, 69/fonts.dir, 69/v1200a.pcf, ROM, X11/baseline.pcf, X11/evil.pcf, X11/fonts.dir, X11/v1200a.pcf, baseline.pcf, evil.pcf, font, font/baseline.pcf, font/evil.pcf, font/fonts.dir, font/v1200a.pcf, fonts, fonts.dir, fonts/baseline.pcf, fonts/evil.pcf, fonts/fonts.dir, fonts/v1200a.pcf, misc/baseline.pcf, misc/evil.pcf, misc/fonts.dir, misc/v1200a.pcf, real.pcf, rom
bootp: L2 responder on tap-mess-0-0: handing out 192.168.99.2, siaddr 192.168.99.1 (src mac 36:e6:4e:de:3c:a6)
tftp: client aborted transfer: '\x00\x03Disk full or allocation exceeded'
21:48:57 192.168.99.2:1025 requested '69'
21:48:57 192.168.99.2:1026 requested '69/fonts.dir'
21:48:57 192.168.99.2:1027 requested '69/fonts.dir'