X-Git-Url: https://iankelling.org/git/?p=automated-distro-installer;a=blobdiff_plain;f=pxe-server;h=6137386a1188d9ab9c50e4bee783e7ee57dfc053;hp=c46c72eb34c1141433f9e8c3c177ab448f034d14;hb=HEAD;hpb=917fa30617ccafa3a7ed5218a418cf058948b729 diff --git a/pxe-server b/pxe-server index c46c72e..1e99b03 100755 --- a/pxe-server +++ b/pxe-server @@ -16,8 +16,14 @@ # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. +[[ $EUID == 0 ]] || exec sudo -E "${BASH_SOURCE[0]}" "$@" -x="$(readlink -f "$BASH_SOURCE")"; source "${x%/*}/bash-trace" +readonly this_file="$(readlink -f -- "${BASH_SOURCE[0]}")" +script_dir="${this_file%/*}" +# shellcheck source=./bash-trace +source "${script_dir}/bash-trace" +cd $script_dir +PATH="$PATH:$PWD" usage() { @@ -29,7 +35,10 @@ not general purpose, it has code specific to dhcp servers I run. Without TYPE, disable server and fai server. In that case, HOST is only needed for fsf office network. -HOST A hostname known to the dhcp server, or default for all. +HOST Only do dhcp pxe for HOST. The hostname must be known to the dhcp + server to target its mac. Use "default" for all hosts. + Required in fsf office environment. + TYPE One of arch, parabola, plain, fai. -a Don't setup pxe, just Wait for 2 dhcp acks, then disable the pxe @@ -38,8 +47,9 @@ TYPE One of arch, parabola, plain, fai. after the 2nd. I can't remember exactly why this caused a problem, but I'm hoping the sleep will take care of it. -d Don't alter dhcp config. Only make sense for fai type, and on network - other than home or fsf. + other than home or fsf, when using fai-cd, or pxe-kexec. -k Pass -k to myfai-chboot. +--no-r Pass --no-r to myfai-chboot. -r Don't redeploy fai config. For example, if there is a different host that is mid-install. @@ -56,31 +66,54 @@ rm tftpboot ln -s tftpboot +Notes on debugging pxe dhcp tftp: + +For debugging dhcp, add to /etc/dnsmasq.conf: log-dhcp + +Newer openwrt runs dnsmasq with a whitelist of readable files and dirs: + +ps ww : +/sbin/ujail -t 5 -n dnsmasq -u -l -r /bin/ubus -r /etc/TZ -r /etc/dnsmasq.conf -r /etc/ethers -r /etc/group -r /etc/hosts -r /etc/passwd -w /tmp/dhcp.leases -r /tmp/dnsmasq.d -r /tmp/hosts -r /tmp/resolv.conf.d -r /usr/bin/jshn -r /usr/lib/dnsmasq/dhcp-script.sh -r /usr/share/dnsmasq/dhcpbogushostname.conf -r /usr/share/dnsmasq/rfc6761.conf -r /usr/share/dnsmasq/trust-anchors.conf -r /usr/share/libubox/jshn.sh -r /var/etc/dnsmasq.conf.cfg01411c -w /var/run/dnsmasq/ -- /usr/sbin/dnsmasq -C /var/etc/dnsmasq.conf.cfg01411c -k -x /var/run/dnsmasq/dnsmasq.cfg01411c.pid + +logging tftp requests: +/etc/default/tftpd-hpa: +add -vv: +TFTP_OPTIONS="--secure -vv" +jr -u tftpd-hpa -f + Note: Uses GNU getopt options parsing style EOF exit $1 } +pre="${0##*/}:" +m() { printf "$pre %s\n" "$*"; "$@"; } +e() { printf "$pre %s\n" "$*"; } +err() { echo "[$(date +'%Y-%m-%d %H:%M:%S%z')]: $pre: $*" >&2; } + +PATH="/a/exe:$PATH" + ##### begin command line parsing ######## dhcp=true redep=true acks=2 wait=false -fsf=false +fsf_office=false case $HOSTNAME in - x3|kw) fsf=true ;; + x3|kw) fsf_office=true ;; esac chboot_args=() -temp=$(getopt -l help adkrSwh "$@") || usage 1 +temp=$(getopt -l no-r,help adkrSwh "$@") || usage 1 eval set -- "$temp" while true; do case $1 in -a) wait=true; set=false; shift ;; -d) dhcp=false; shift ;; -k) chboot_args+=(-k); shift ;; + --no-r) chboot_args+=(--no-r); shift ;; -r) redep=false; shift ;; -S) chboot_args+=(-S); shift ;; -w) wait=true; set=true; shift ;; @@ -114,10 +147,14 @@ esac if $wait && ! $dhcp; then - echo "$0: error -w conflicts with -d, choose one or other" + echo "$0: error -w conflicts with -d, choose one or other" >&2 exit 1 fi +if $fsf_office && [[ ! $host ]]; then + echo "$0: at fsf_office, provide HOST arg" >&2 + exit 1 + fi if [[ $host && $host != default ]]; then host_tag="tag:$host," @@ -125,16 +162,11 @@ fi ##### end command line parsing ######## -e() { - echo "$@" - "$@" -} - archlike() { cat </dev/null || sudo apt-get -y install dnsutils +faiserverip=$(host faiserver | sed -rn 's/^\S+ has address //p;T;q' ||:) +if [[ ! $faiserverip || $faiserverip =~ [[:space:]] ]]; then + echo "$0: error: failed to get \$faiserverip, got: $faiserverip" + exit 1 +fi + if $set; then set-pxe if [[ $type == fai ]]; then - e myfai-chboot ${chboot_args[@]} $host if $redep; then - e fai-redep + m fai-redep fi + m myfai-chboot ${chboot_args[@]} $host else # This will fail if faiserver is not setup, so ignore any # failure and don't bother us about it. - myfai-chboot &>/dev/null ||: + m myfai-chboot &>/dev/null ||: fi fi