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https://passt.top/passt
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81 lines
2.1 KiB
Plaintext
81 lines
2.1 KiB
Plaintext
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#! /bin/sh
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#
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# SPDX-License-Identifier: AGPL-3.0-or-later
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#
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# PASST - Plug A Simple Socket Transport
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# for qemu/UNIX domain socket mode
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#
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# PASTA - Pack A Subtle Tap Abstraction
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# for network namespace/tap device mode
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#
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# test/lib/context - Run commands in different contexts (host, guest, namespace etc.)
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#
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# Copyright Red Hat
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# Author: David Gibson <david@gibson.dropbear.id.au>
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# context_setup_host() - Create a new context for running commands on the host
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# $1: Context name
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context_setup_host() {
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__name="$1"
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__prefix="${LOGDIR}/context_${__name}"
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echo sh -c > "${__prefix}.enter"
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echo -n "${__name}$ " > "${__prefix}.log"
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}
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# context_teardown() - Remove a context (leave log files intact)
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# $1: Context name
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context_teardown() {
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__name="$1"
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__prefix="${LOGDIR}/context_${__name}"
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rm -f "${__prefix}.enter"
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}
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# context_exists() - Test if a context currently exists
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# $1: Context name
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context_exists() {
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__name="$1"
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__prefix="${LOGDIR}/context_${__name}"
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[ -f "${__prefix}.enter" ]
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}
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# context_run() - Run a shell command in a context, and wait for it to finish
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# $1: Context name
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# $*: Command to start
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context_run() {
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__name="$1"
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__prefix="${LOGDIR}/context_${__name}"
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__enter="$(cat "${__prefix}.enter")"
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shift
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echo "$*" >> "${__prefix}.log"
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mkfifo "${__prefix}.stdout" "${__prefix}.stderr"
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tee -a "${__prefix}.log" < "${__prefix}.stdout" &
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tee -a "${__prefix}.log" < "${__prefix}.stderr" >&2 &
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${__enter} "$*" >> "${__prefix}.stdout" 2>> "${__prefix}.stderr"
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rc=$?
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rm "${__prefix}.stdout" "${__prefix}.stderr"
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[ ${DEBUG} -eq 1 ] && echo "[Exit code: $rc]" >> "${__prefix}.log"
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echo -n "${__name}$ " >> "${__prefix}.log"
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return $rc
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}
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# context_run_bg() - Start a shell command in a context
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# $1: Context name
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# $*: Command to start
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context_run_bg() {
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__name="$1"
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__prefix="${LOGDIR}/context_${__name}"
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context_run "$@" &
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echo $! > "${__prefix}.pid"
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}
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# context_wait() - Wait for background command in a context to complete
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# $1: Context name
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# Returns the status of the completed command
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context_wait() {
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__name="$1"
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__prefix="${LOGDIR}/context_${__name}"
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__pid=$(cat "${__prefix}.pid")
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rm "${__prefix}.pid"
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wait ${__pid}
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}
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