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a63cd2d648
This command can be used to update the kernel of a ChromiumOS target. Much thanks to snanda for the inspiration and instructions. BUG=9864 TEST=Verified that it works. Change-Id: I66f7d940e0dc59b0e1a50409a7155fe0ba7157fe Review URL: http://codereview.chromium.org/5550001
116 lines
3.4 KiB
Bash
116 lines
3.4 KiB
Bash
# Copyright (c) 2009 The Chromium OS Authors. All rights reserved.
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# Use of this source code is governed by a BSD-style license that can be
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# found in the LICENSE file.
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# Library for setting up remote access and running remote commands.
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DEFAULT_PRIVATE_KEY="${GCLIENT_ROOT}/src/scripts/mod_for_test_scripts/\
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ssh_keys/testing_rsa"
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DEFINE_string remote "" "remote hostname/IP of running Chromium OS instance"
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DEFINE_string private_key "$DEFAULT_PRIVATE_KEY" \
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"Private key of root account on remote host"
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DEFINE_integer ssh_port 22 \
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"SSH port of the remote machine running Chromium OS instance"
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# Copies $1 to $2 on remote host
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function remote_cp_to() {
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REMOTE_OUT=$(scp -P ${FLAGS_ssh_port} -o StrictHostKeyChecking=no -o \
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UserKnownHostsFile=$TMP_KNOWN_HOSTS $1 root@$FLAGS_remote:$2)
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return ${PIPESTATUS[0]}
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}
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# Copies a list of remote files specified in file $1 to local location
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# $2. Directory paths in $1 are collapsed into $2.
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function remote_rsync_from() {
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rsync -e "ssh -p ${FLAGS_ssh_port} -o StrictHostKeyChecking=no -o \
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UserKnownHostsFile=$TMP_KNOWN_HOSTS" --no-R \
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--files-from=$1 root@${FLAGS_remote}:/ $2
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}
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function remote_sh() {
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REMOTE_OUT=$(ssh -p ${FLAGS_ssh_port} -o StrictHostKeyChecking=no -o \
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UserKnownHostsFile=$TMP_KNOWN_HOSTS root@$FLAGS_remote "$@")
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return ${PIPESTATUS[0]}
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}
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function remote_sh_allow_changed_host_key() {
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rm -f $TMP_KNOWN_HOSTS
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remote_sh "$@"
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}
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function set_up_remote_access() {
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if [ -z "$SSH_AGENT_PID" ]; then
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eval $(ssh-agent)
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OWN_SSH_AGENT=1
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else
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OWN_SSH_AGENT=0
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fi
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cp $FLAGS_private_key $TMP_PRIVATE_KEY
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chmod 0400 $TMP_PRIVATE_KEY
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ssh-add $TMP_PRIVATE_KEY
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# Verify the client is reachable before continuing
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echo "Initiating first contact with remote host"
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remote_sh "true"
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echo "Connection OK"
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}
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# Ask the target what board it is
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function learn_board() {
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[ -n "${FLAGS_board}" ] && return
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remote_sh grep CHROMEOS_RELEASE_BOARD /etc/lsb-release
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FLAGS_board=$(echo "${REMOTE_OUT}" | cut -d '=' -f 2)
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if [ -z "${FLAGS_board}" ]; then
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error "Board required"
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exit 1
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fi
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info "Target reports board is ${FLAGS_board}"
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}
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function remote_reboot {
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info "Rebooting."
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remote_sh "touch /tmp/awaiting_reboot; reboot"
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local output_file
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output_file="${TMP}/output"
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while true; do
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REMOTE_OUT=""
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# This may fail while the machine is down so generate output and a
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# boolean result to distinguish between down/timeout and real failure
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! remote_sh_allow_changed_host_key \
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"echo 0; [ -e /tmp/awaiting_reboot ] && echo '1'; true"
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echo "${REMOTE_OUT}" > "${output_file}"
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if grep -q "0" "${output_file}"; then
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if grep -q "1" "${output_file}"; then
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info "Not yet rebooted"
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else
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info "Rebooted and responding"
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break
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fi
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fi
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sleep .5
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done
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}
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function cleanup_remote_access() {
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# Call this function from the exit trap of the main script.
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# Iff we started ssh-agent, be nice and clean it up.
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# Note, only works if called from the main script - no subshells.
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if [[ 1 -eq ${OWN_SSH_AGENT} ]]
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then
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kill ${SSH_AGENT_PID} 2>/dev/null
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unset SSH_AGENT_PID SSH_AUTH_SOCK
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fi
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}
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function remote_access_init() {
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TMP_PRIVATE_KEY=$TMP/private_key
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TMP_KNOWN_HOSTS=$TMP/known_hosts
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if [ -z "$FLAGS_remote" ]; then
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echo "Please specify --remote=<IP-or-hostname> of the Chromium OS instance"
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exit 1
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fi
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set_up_remote_access
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}
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