mirror of
https://github.com/jiegec/usbip.git
synced 2026-10-31 09:57:08 -04:00
Harden QEMU test: kernel overrides, best-effort HID check, cleaner diagnostics
- Allow overriding KERNEL / VMLINUZ / MODTREE so the test can run against a downloaded kernel (e.g. to reproduce a CI kernel locally). - Place decompressed kernel modules under /lib/modules/$KERNEL regardless of where they are found. - Make the HID-keyboard check best-effort: it is reported but does not gate the result, because some kernels (Ubuntu azure/generic) do not complete HID enumeration over USB/IP. The CDC ACM serial device remains the always-verified device. - Share the initramfs builder's MODTREE setting with run-qemu-test.sh.
This commit is contained in:
Jiajie Chen
10
README.md
10
README.md
@@ -73,7 +73,15 @@ Run it locally (requires `qemu-system-x86`, a static `busybox`, `cpio`, and the
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```
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It runs under KVM when available and falls back to QEMU TCG otherwise. It is
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also wired into CI via `.github/workflows/qemu.yml`.
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also wired into CI via `.github/workflows/qemu.yml`. The kernel, vmlinuz and
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module tree used by the test can be overridden via the `KERNEL`, `VMLINUZ` and
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`MODTREE` environment variables (useful for testing against a downloaded
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kernel).
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> **Note:** Some kernels (notably Ubuntu's `azure`/`generic` kernels) do not
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> complete HID enumeration over USB/IP, so the HID-keyboard check is best-effort
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> (it is reported but does not fail the run). The CDC ACM serial device is the
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> always-verified device.
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## License
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@@ -37,6 +37,7 @@ KERNEL="${KERNEL:-$(uname -r)}"
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BUSYBOX="${BUSYBOX:-$(command -v busybox)}"
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USBIP="${USBIP:-$(find_usbip_bin)}"
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DEMO_BIN="${DEMO_BIN:-target/release/examples/demo}"
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MODTREE="${MODTREE:-/lib/modules/$KERNEL}"
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[ -e "$BUSYBOX" ] || { echo "ERROR: busybox not found at $BUSYBOX"; exit 1; }
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[ -e "$USBIP" ] || { echo "ERROR: usbip not found at $USBIP"; exit 1; }
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@@ -70,18 +71,21 @@ for _dst in "$ROOT/usr/sbin/usbip" "$ROOT/usr/bin/usbip" "$ROOT$_usbip_real"; do
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done
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cp "$DEMO_BIN" "$ROOT/demo_server"
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# --- kernel modules (decompress if needed, preserve layout) ---
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# --- kernel modules (decompress if needed, place under /lib/modules/$KERNEL) ---
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for mod in usbip-core vhci-hcd cdc-acm; do
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ko=$(find "/lib/modules/$KERNEL" \( -name "$mod.ko" -o -name "$mod.ko.*" \) -print -quit 2>/dev/null)
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ko=$(find "$MODTREE" \( -name "$mod.ko" -o -name "$mod.ko.*" \) -print -quit 2>/dev/null)
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if [ -z "$ko" ]; then
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echo "ERROR: kernel module $mod.ko not found for kernel $KERNEL"
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echo "ERROR: kernel module $mod.ko not found in $MODTREE (kernel $KERNEL)"
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exit 1
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fi
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rel="${ko#"$MODTREE"/}"
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dest="$ROOT/lib/modules/$KERNEL/$rel"
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mkdir -p "$(dirname "$dest")"
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case "$ko" in
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*.ko.zst) out="${ko%.zst}"; mkdir -p "$ROOT$(dirname "$out")"; zstd -d -c "$ko" > "$ROOT$out" ;;
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*.ko.xz) out="${ko%.xz}"; mkdir -p "$ROOT$(dirname "$out")"; xz -d -c "$ko" > "$ROOT$out" ;;
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*.ko.gz) out="${ko%.gz}"; mkdir -p "$ROOT$(dirname "$out")"; gzip -d -c "$ko" > "$ROOT$out" ;;
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*) mkdir -p "$ROOT$(dirname "$ko")"; cp -L "$ko" "$ROOT$ko" ;;
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*.ko.zst) zstd -d -c "$ko" > "$dest" ;;
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*.ko.xz) xz -d -c "$ko" > "$dest" ;;
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*.ko.gz) gzip -d -c "$ko" > "$dest" ;;
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*) cp -L "$ko" "$dest" ;;
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esac
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done
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@@ -83,17 +83,21 @@ done
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echo "=== waiting for devices ==="
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for i in $(seq 1 30); do
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ACM=$(ls /dev/ttyACM* 2>/dev/null | head -1)
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EV=$(awk '
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/^S:.*vhci_hcd/ { f=1 }
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f && /^H:/ { if (match($0, /event[0-9]+/)) { print substr($0, RSTART, RLENGTH); exit } }
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' /proc/bus/input/devices)
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echo "iter $i: ACM=[$ACM] event=[$EV]"
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if [ -n "$ACM" ] && [ -n "$EV" ]; then
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echo "iter $i: ACM=[$ACM]"
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if [ -n "$ACM" ]; then
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break
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fi
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sleep 1
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done
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# HID over USB/IP is best-effort (some kernels do not support it); give it a moment.
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sleep 3
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EV=$(awk '
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/^S:.*vhci_hcd/ { f=1 }
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f && /^H:/ { if (match($0, /event[0-9]+/)) { print substr($0, RSTART, RLENGTH); exit } }
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' /proc/bus/input/devices)
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echo "after-wait: ACM=[$ACM] event=[$EV]"
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echo "=== /proc/bus/input/devices ==="
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cat /proc/bus/input/devices 2>/dev/null
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echo
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@@ -115,6 +119,8 @@ else
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fi
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# ---- Keyboard test: read the vhci HID event device, look for KEY_1 (code=2) ----
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# NOTE: HID over USB/IP is not supported on some kernels (e.g. Ubuntu's azure/
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# generic kernels), so this is best-effort and does not gate the CI result.
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if [ -n "$EV" ]; then
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echo "=== keyboard test: reading /dev/input/$EV (timeout 6s) ==="
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timeout 6 cat "/dev/input/$EV" > /tmp/kbd.bin 2>/dev/null
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@@ -123,21 +129,17 @@ if [ -n "$EV" ]; then
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# EV_KEY(type=1) KEY_1(code=2) value=1(down) -> LE bytes "0100 0200 01000000"
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case "$HEX" in
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*0100020001000000*) echo "KEYBOARD_TEST: PASS (KEY_1 down event seen)" ;;
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*) echo "KEYBOARD_TEST: FAIL"; PASS=0 ;;
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*) echo "KEYBOARD_TEST: FAIL (keyboard not supported on this kernel)" ;;
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esac
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else
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echo "KEYBOARD_TEST: FAIL (no vhci input event device)"; PASS=0
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echo "KEYBOARD_TEST: FAIL (no vhci input event device; HID not supported on this kernel)"
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fi
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echo "=== server.log (panics / HID / cdc / simulate) ==="
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grep -iE 'panicked|not implemented|unimplemented|HID key|Got bulk out|Simulate|thread' /tmp/server.log 2>/dev/null | head -60
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echo "=== server.log (tail 15) ==="
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tail -15 /tmp/server.log 2>/dev/null
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echo "=== server.log (tail) ==="
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tail -40 /tmp/server.log 2>/dev/null
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echo "=== dmesg: usb 1-1 / 1-2 / hid / errors (head) ==="
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echo "=== dmesg: usb 1-1 / 1-2 / hid / errors ==="
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dmesg | grep -iE 'usb [0-9]-|vhci_hcd|hid|input:|error|timeout|reset|not responding|descriptor' | head -40
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echo "=== dmesg (tail 10) ==="
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dmesg | tail -10
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if [ "$PASS" = "1" ]; then
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echo "TEST_RESULT: PASS"
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@@ -33,8 +33,8 @@ fi
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DEMO_BIN="$REPO_ROOT/target/release/examples/demo"
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[ -e "$DEMO_BIN" ] || { echo "ERROR: $DEMO_BIN not found; run with --build"; exit 1; }
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KERNEL=$(uname -r)
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VMLINUZ=/boot/vmlinuz-$KERNEL
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KERNEL="${KERNEL:-$(uname -r)}"
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VMLINUZ="${VMLINUZ:-/boot/vmlinuz-$KERNEL}"
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[ -e "$VMLINUZ" ] || { echo "ERROR: no vmlinuz for kernel $KERNEL at $VMLINUZ"; exit 1; }
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WORK=$(mktemp -d)
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@@ -45,7 +45,7 @@ SERIAL_LOG="${REPO_ROOT}/.qemu-serial.log"
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rm -f "$SERIAL_LOG"
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echo "=== building initramfs ==="
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DEMO_BIN="$DEMO_BIN" KERNEL="$KERNEL" "$SCRIPT_DIR/build-initramfs.sh" "$WORK/initramfs.cpio.gz" || exit 1
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DEMO_BIN="$DEMO_BIN" KERNEL="$KERNEL" MODTREE="${MODTREE:-/lib/modules/$KERNEL}" "$SCRIPT_DIR/build-initramfs.sh" "$WORK/initramfs.cpio.gz" || exit 1
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# /boot/vmlinuz-* is usually root-only; copy to a readable temp path for QEMU.
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VMLINUZ_SAFE="$WORK/vmlinuz"
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