tools/testing/selftests/vsock/vmtest.sh

Source file repositories/reference/linux-study-clean/tools/testing/selftests/vsock/vmtest.sh

File Facts

System
Linux kernel
Corpus path
tools/testing/selftests/vsock/vmtest.sh
Extension
.sh
Size
36581 bytes
Lines
1614
Domain
Support Tooling And Documentation
Bucket
tools
Inferred role
Support Tooling And Documentation: tools
Status
atlas-only

Why This File Exists

Repository support layer: documentation, build tooling, samples, user-space helper tools, generated initramfs support, licenses, and validation utilities.

Dependency Surface

Detected Declarations

Annotated Snippet

#!/bin/bash
# SPDX-License-Identifier: GPL-2.0
#
# Copyright (c) 2025 Meta Platforms, Inc. and affiliates
#
# Dependencies:
#		* virtme-ng
#		* busybox-static (used by virtme-ng)
#		* qemu	(used by virtme-ng)
#		* socat
#
# shellcheck disable=SC2317,SC2119

readonly SCRIPT_DIR="$(cd -P -- "$(dirname -- "${BASH_SOURCE[0]}")" && pwd -P)"
readonly KERNEL_CHECKOUT=$(realpath "${SCRIPT_DIR}"/../../../../)

source "${SCRIPT_DIR}"/../kselftest/ktap_helpers.sh

readonly VSOCK_TEST="${SCRIPT_DIR}"/vsock_test
readonly TEST_GUEST_PORT=51000
readonly TEST_HOST_PORT=50000
readonly TEST_HOST_PORT_LISTENER=50001
readonly SSH_GUEST_PORT=22
readonly SSH_HOST_PORT=2222
readonly VSOCK_CID=1234
readonly WAIT_PERIOD=3
readonly WAIT_PERIOD_MAX=60
readonly WAIT_QEMU=5
readonly PIDFILE_TEMPLATE=/tmp/vsock_vmtest_XXXX.pid
declare -A PIDFILES

# virtme-ng offers a netdev for ssh when using "--ssh", but we also need a
# control port forwarded for vsock_test.  Because virtme-ng doesn't support
# adding an additional port to forward to the device created from "--ssh" and
# virtme-init mistakenly sets identical IPs to the ssh device and additional
# devices, we instead opt out of using --ssh, add the device manually, and also
# add the kernel cmdline options that virtme-init uses to setup the interface.
readonly QEMU_TEST_PORT_FWD="hostfwd=tcp::${TEST_HOST_PORT}-:${TEST_GUEST_PORT}"
readonly QEMU_SSH_PORT_FWD="hostfwd=tcp::${SSH_HOST_PORT}-:${SSH_GUEST_PORT}"
readonly KERNEL_CMDLINE="\
	virtme.dhcp net.ifnames=0 biosdevname=0 \
	virtme.ssh virtme_ssh_channel=tcp virtme_ssh_user=$USER \
"
readonly LOG=$(mktemp /tmp/vsock_vmtest_XXXX.log)
readonly TEST_HOME="$(mktemp -d /tmp/vmtest_home_XXXX)"
readonly SSH_KEY_PATH="${TEST_HOME}"/.ssh/id_ed25519

# Namespace tests must use the ns_ prefix. This is checked in check_netns() and
# is used to determine if a test needs namespace setup before test execution.
readonly TEST_NAMES=(
	vm_server_host_client
	vm_client_host_server
	vm_loopback
	ns_host_vsock_ns_mode_ok
	ns_host_vsock_child_ns_mode_ok
	ns_global_same_cid_fails
	ns_local_same_cid_ok
	ns_global_local_same_cid_ok
	ns_local_global_same_cid_ok
	ns_diff_global_host_connect_to_global_vm_ok
	ns_diff_global_host_connect_to_local_vm_fails
	ns_diff_global_vm_connect_to_global_host_ok
	ns_diff_global_vm_connect_to_local_host_fails
	ns_diff_local_host_connect_to_local_vm_fails
	ns_diff_local_vm_connect_to_local_host_fails
	ns_diff_global_to_local_loopback_local_fails
	ns_diff_local_to_global_loopback_fails
	ns_diff_local_to_local_loopback_fails
	ns_diff_global_to_global_loopback_ok
	ns_same_local_loopback_ok

Annotation

Implementation Notes