ca2749e1bd
In practical terms, passt doesn't benefit from the additional protection offered by the AGPL over the GPL, because it's not suitable to be executed over a computer network. Further, restricting the distribution under the version 3 of the GPL wouldn't provide any practical advantage either, as long as the passt codebase is concerned, and might cause unnecessary compatibility dilemmas. Change licensing terms to the GNU General Public License Version 2, or any later version, with written permission from all current and past contributors, namely: myself, David Gibson, Laine Stump, Andrea Bolognani, Paul Holzinger, Richard W.M. Jones, Chris Kuhn, Florian Weimer, Giuseppe Scrivano, Stefan Hajnoczi, and Vasiliy Ulyanov. Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
126 lines
3.4 KiB
Bash
126 lines
3.4 KiB
Bash
#! /bin/sh
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#
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# SPDX-License-Identifier: GPL-2.0-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_common() - Create outline of a new context
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# $1: Context name
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context_setup_common() {
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__name="$1"
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__log="${LOGDIR}/context_${__name}.log"
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echo -n "${__name}$ " > "${__log}"
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}
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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="$1"
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__enter="${STATESETUP}/context_${__name}.enter"
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context_setup_common "${__name}"
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echo sh -c > "${__enter}"
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}
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# context_setup_nsenter() - Create a new context for running commands in a namespace
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# $1: Context name
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# $2: Namespace PID
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context_setup_nsenter() {
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__name="$1"
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shift
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__enter="${STATESETUP}/context_${__name}.enter"
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context_setup_common "${__name}"
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echo "nsenter $@ sh -c" > "${__enter}"
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}
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# context_setup_guest() - Create a new context for running commands in a guest
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# $1: Context name
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# $2: CID to use for vsock
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context_setup_guest() {
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__name="$1"
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__cid="$2"
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__enter="${STATESETUP}/context_${__name}.enter"
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__ssh="${STATESETUP}/context_${__name}.ssh"
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context_setup_common "${__name}"
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cat > "${__ssh}" <<EOF
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Host ${__name}
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User root
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UserKnownHostsFile ${STATESETUP}/context_${__name}.hosts
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StrictHostKeyChecking no
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IdentityFile ${BASEPATH}/guest-key
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IdentityAgent none
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ProxyCommand socat - VSOCK-CONNECT:${__cid}:22
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EOF
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echo "ssh -F ${__ssh} ${__name}" > "${__enter}"
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# Wait for the guest to be booted and accepting connections
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wait_for ssh -F "${__ssh}" "${__name}" :
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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="$1"
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__prefix="${STATESETUP}/context_${__name}"
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rm -f "${__prefix}.enter" "${__prefix}.ssh" "${__prefix}.hosts"
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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="$1"
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__enter="${STATESETUP}/context_${__name}.enter"
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[ -f "${__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="$1"
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__log="${LOGDIR}/context_${__name}.log"
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__enter="${STATESETUP}/context_${__name}.enter"
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__stdout="${STATESETUP}/context_${__name}.stdout"
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__stderr="${STATESETUP}/context_${__name}.stderr"
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shift
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echo "$*" >> "${__log}"
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mkfifo "${__stdout}" "${__stderr}"
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tee -a "${__log}" < "${__stdout}" &
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tee -a "${__log}" < "${__stderr}" >&2 &
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$(cat ${__enter}) "$*" >> "${__stdout}" 2>> "${__stderr}"
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rc=$?
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rm "${__stdout}" "${__stderr}"
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[ ${DEBUG} -eq 1 ] && echo "[Exit code: $rc]" >> "${__log}"
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echo -n "${__name}$ " >> "${__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="$1"
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__pidfile="${STATESETUP}/context_${__name}.pid"
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context_run "$@" &
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echo $! > "${__pidfile}"
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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="$1"
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__pidfile="${STATESETUP}/context_${__name}.pid"
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__pid=$(cat "${__pidfile}")
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rm "${__pidfile}"
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wait ${__pid}
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}
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