diff options
Diffstat (limited to 'src/init/vyos-router')
| -rwxr-xr-x | src/init/vyos-router | 421 |
1 files changed, 421 insertions, 0 deletions
diff --git a/src/init/vyos-router b/src/init/vyos-router new file mode 100755 index 000000000..7b752b84b --- /dev/null +++ b/src/init/vyos-router @@ -0,0 +1,421 @@ +#!/bin/bash +# Copyright (C) 2021 VyOS maintainers and contributors +# +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License version 2 or later as +# published by the Free Software Foundation. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program. If not, see <http://www.gnu.org/licenses/>. + +. /lib/lsb/init-functions + +: ${vyatta_env:=/etc/default/vyatta} +source $vyatta_env + +declare progname=${0##*/} +declare action=$1; shift + +declare -x BOOTFILE=$vyatta_sysconfdir/config/config.boot + +# If vyos-config= boot option is present, use that file instead +for x in $(cat /proc/cmdline); do + [[ $x = vyos-config=* ]] || continue + VYOS_CONFIG="${x#vyos-config=}" +done + +if [ ! -z "$VYOS_CONFIG" ]; then + if [ -r "$VYOS_CONFIG" ]; then + echo "Config selected manually: $VYOS_CONFIG" + declare -x BOOTFILE="$VYOS_CONFIG" + else + echo "WARNING: Could not read selected config file, using default!" + fi +fi + +declare -a subinit +declare -a all_subinits=( firewall ) + +if [ $# -gt 0 ] ; then + for s in $@ ; do + [ -x ${vyatta_sbindir}/${s}.init ] && subinit[${#subinit}]=$s + done +else + for s in ${all_subinits[@]} ; do + [ -x ${vyatta_sbindir}/${s}.init ] && subinit[${#subinit}]=$s + done +fi + +GROUP=vyattacfg + +# easy way to make empty file without any command +empty() +{ + >$1 +} + +# check if bootup of this portion is disabled +disabled () { + grep -q -w no-vyos-$1 /proc/cmdline +} + +# if necessary, provide initial config +init_bootfile () { + if [ ! -r $BOOTFILE ] ; then + if [ -f $vyatta_sysconfdir/config.boot.default ]; then + cp $vyatta_sysconfdir/config.boot.default $BOOTFILE + else + $vyos_libexec_dir/system-versions-foot.py > $BOOTFILE + fi + chgrp ${GROUP} $BOOTFILE + chmod 660 $BOOTFILE + fi +} + +# if necessary, migrate initial config +migrate_bootfile () +{ + if [ -x $vyos_libexec_dir/run-config-migration.py ]; then + log_progress_msg migrate + sg ${GROUP} -c "$vyos_libexec_dir/run-config-migration.py $BOOTFILE" + fi +} + +# load the initial config +load_bootfile () +{ + log_progress_msg configure + ( + if [ -f /etc/default/vyatta-load-boot ]; then + # build-specific environment for boot-time config loading + source /etc/default/vyatta-load-boot + fi + if [ -x $vyos_libexec_dir/vyos-boot-config-loader.py ]; then + sg ${GROUP} -c "$vyos_libexec_dir/vyos-boot-config-loader.py $BOOTFILE" + fi + ) +} + +# execute the pre-config script +run_preconfig_script () +{ + if [ -x $vyatta_sysconfdir/config/scripts/vyos-preconfig-bootup.script ]; then + $vyatta_sysconfdir/config/scripts/vyos-preconfig-bootup.script + fi +} + +# execute the post-config scripts +run_postconfig_scripts () +{ + if [ -x $vyatta_sysconfdir/config/scripts/vyatta-postconfig-bootup.script ]; then + $vyatta_sysconfdir/config/scripts/vyatta-postconfig-bootup.script + fi + if [ -x $vyatta_sysconfdir/config/scripts/vyos-postconfig-bootup.script ]; then + $vyatta_sysconfdir/config/scripts/vyos-postconfig-bootup.script + fi +} + +run_postupgrade_script () +{ + if [ -f $vyatta_sysconfdir/config/.upgraded ]; then + # Run the system script + /usr/libexec/vyos/system/post-upgrade + + # Run user scripts + if [ -d $vyatta_sysconfdir/config/scripts/post-upgrade.d ]; then + run-parts $vyatta_sysconfdir/config/scripts/post-upgrade.d + fi + rm -f $vyatta_sysconfdir/config/.upgraded + fi +} + +# +# On image booted machines, we need to mount /boot from the image-specific +# boot directory so that kernel package installation will put the +# files in the right place. We also have to mount /boot/grub from the +# system-wide grub directory so that tools that edit the grub.cfg +# file will find it in the expected location. +# +bind_mount_boot () +{ + persist_path=$(/opt/vyatta/sbin/vyos-persistpath) + if [ $? == 0 ]; then + if [ -e $persist_path/boot ]; then + image_name=$(cat /proc/cmdline | sed -e s+^.*vyos-union=/boot/++ | sed -e 's/ .*$//') + + if [ -n "$image_name" ]; then + mount --bind $persist_path/boot/$image_name /boot + if [ $? -ne 0 ]; then + echo "Couldn't bind mount /boot" + fi + + if [ ! -d /boot/grub ]; then + mkdir /boot/grub + fi + + mount --bind $persist_path/boot/grub /boot/grub + if [ $? -ne 0 ]; then + echo "Couldn't bind mount /boot/grub" + fi + fi + fi + fi +} + +clear_or_override_config_files () +{ + for conf in snmp/snmpd.conf snmp/snmptrapd.conf snmp/snmp.conf \ + keepalived/keepalived.conf cron.d/vyos-crontab \ + ipvsadm.rules default/ipvsadm resolv.conf + do + if [ -s /etc/$conf ] ; then + empty /etc/$conf + chmod 0644 /etc/$conf + fi + done +} + +update_interface_config () +{ + if [ -d /run/udev/vyos ]; then + $vyos_libexec_dir/vyos-interface-rescan.py $BOOTFILE + fi +} + +cleanup_post_commit_hooks () { + # Remove links from the post-commit hooks directory. + # note that this approach only supports hooks that are "configured", + # i.e., it does not support hooks that need to always be present. + cpostdir=$(cli-shell-api getPostCommitHookDir) + # exclude commits hooks from vyatta-cfg + excluded="10vyatta-log-commit.pl 99vyos-user-postcommit-hooks" + if [ -d "$cpostdir" ]; then + for f in $cpostdir/*; do + if [[ ! $excluded =~ $(basename $f) ]]; then + rm -f $cpostdir/$(basename $f) + fi + done + fi +} + +# These are all the default security setting which are later +# overridden when configuration is read. These are the values the +# system defaults. +security_reset () +{ + # restore PAM back to virgin state (no radius/tacacs services) + pam-auth-update --package --remove radius + rm -f /etc/pam_radius_auth.conf + pam-auth-update --package --remove tacplus + rm -f /etc/tacplus_nss.conf /etc/tacplus_servers + + # Certain configuration files are re-generated by the configuration + # subsystem and must reside under /etc and can not easily be moved to /run. + # So on every boot we simply delete any remaining files and let the CLI + # regenearte them. + + # PPPoE + rm -f /etc/ppp/peers/pppoe* /etc/ppp/peers/wlm* + + # IPSec + rm -rf /etc/ipsec.conf /etc/ipsec.secrets + find /etc/swanctl -type f | xargs rm -f + + # limit cleanup + rm -f /etc/security/limits.d/10-vyos.conf + + # iproute2 cleanup + rm -f /etc/iproute2/rt_tables.d/vyos-*.conf + + # Container + rm -f /etc/containers/storage.conf /etc/containers/registries.conf /etc/containers/containers.conf + # Clean all networks and re-create them from our CLI + rm -f /etc/containers/networks/* + + # System Options (SSH/cURL) + rm -f /etc/ssh/ssh_config.d/*vyos*.conf + rm -f /etc/curlrc +} + +# XXX: T3885 - generate persistend DHCPv6 DUID (Type4 - UUID based) +gen_duid () +{ + DUID_FILE="/var/lib/dhcpv6/dhcp6c_duid" + UUID_FILE="/sys/class/dmi/id/product_uuid" + UUID_FILE_ALT="/sys/class/dmi/id/product_serial" + if [ ! -f ${UUID_FILE} ] && [ ! -f ${UUID_FILE_ALT} ]; then + return 1 + fi + + # DUID is based on the BIOS/EFI UUID. We omit additional - characters + if [ -f ${UUID_FILE} ]; then + UUID=$(cat ${UUID_FILE} | tr -d -) + fi + if [ -z ${UUID} ]; then + UUID=$(uuidgen --sha1 --namespace @dns --name $(cat ${UUID_FILE_ALT}) | tr -d -) + fi + # Add DUID type4 (UUID) information + DUID_TYPE="0004" + + # The length-information (as per RFC6355 UUID is 128 bits long) is in big-endian + # format - beware when porting to ARM64. The length field consists out of the + # UUID (128 bit + 16 bits DUID type) resulting in hex 12. + DUID_LEN="0012" + if [ "$(echo -n I | od -to2 | head -n1 | cut -f2 -d" " | cut -c6 )" -eq 1 ]; then + # true on little-endian (x86) systems + DUID_LEN="1200" + fi + + for i in $(echo -n ${DUID_LEN}${DUID_TYPE}${UUID} | sed 's/../& /g'); do + echo -ne "\x$i" + done > ${DUID_FILE} +} + +start () +{ + # reset and clean config files + security_reset || log_failure_msg "security reset failed" + + # some legacy directories migrated over from old rl-system.init + mkdir -p /var/run/vyatta /var/log/vyatta + chgrp vyattacfg /var/run/vyatta /var/log/vyatta + chmod 775 /var/run/vyatta /var/log/vyatta + + log_daemon_msg "Waiting for NICs to settle down" + # On boot time udev migth take a long time to reorder nic's, this will ensure that + # all udev activity is completed and all nics presented at boot-time will have their + # final name before continuing with vyos-router initialization. + SECONDS=0 + udevadm settle + STATUS=$? + log_progress_msg "settled in ${SECONDS}sec." + log_end_msg ${STATUS} + + # mountpoint for bpf maps required by xdp + mount -t bpf none /sys/fs/bpf + + # Clear out Debian APT source config file + empty /etc/apt/sources.list + + # Generate DHCPv6 DUID + gen_duid || log_failure_msg "could not generate DUID" + + # Mount a temporary filesystem for container networks. + # Configuration should be loaded from VyOS cli. + cni_dir="/etc/cni/net.d" + [ ! -d ${cni_dir} ] && mkdir -p ${cni_dir} + mount -t tmpfs none ${cni_dir} + + # Init firewall + nfct helper add rpc inet tcp + nfct helper add rpc inet udp + nfct helper add tns inet tcp + nft -f /usr/share/vyos/vyos-firewall-init.conf || log_failure_msg "could not initiate firewall rules" + + rm -f /etc/hostname + ${vyos_conf_scripts_dir}/host_name.py || log_failure_msg "could not reset host-name" + systemctl start frr.service + + # As VyOS does not execute commands that are not present in the CLI we call + # the script by hand to have a single source for the login banner and MOTD + ${vyos_conf_scripts_dir}/system_console.py || log_failure_msg "could not reset serial console" + ${vyos_conf_scripts_dir}/system-login.py || log_failure_msg "could not reset system login" + ${vyos_conf_scripts_dir}/system-login-banner.py || log_failure_msg "could not reset motd and issue files" + ${vyos_conf_scripts_dir}/system-option.py || log_failure_msg "could not reset system option files" + ${vyos_conf_scripts_dir}/conntrack.py || log_failure_msg "could not reset conntrack subsystem" + ${vyos_conf_scripts_dir}/container.py || log_failure_msg "could not reset container subsystem" + + clear_or_override_config_files || log_failure_msg "could not reset config files" + + # enable some debugging before loading the configuration + if grep -q vyos-debug /proc/cmdline; then + log_action_begin_msg "Enable runtime debugging options" + touch /tmp/vyos.container.debug + touch /tmp/vyos.ifconfig.debug + touch /tmp/vyos.frr.debug + touch /tmp/vyos.container.debug + fi + + log_action_begin_msg "Mounting VyOS Config" + # ensure the vyatta_configdir supports a large number of inodes since + # the config hierarchy is often inode-bound (instead of size). + # impose a minimum and then scale up dynamically with the actual size + # of the system memory. + local tmem=$(sed -n 's/^MemTotal: \+\([0-9]\+\) kB$/\1/p' /proc/meminfo) + local tpages + local tmpfs_opts="nosuid,nodev,mode=775,nr_inodes=0" #automatically allocate inodes + mount -o $tmpfs_opts -t tmpfs none ${vyatta_configdir} \ + && chgrp ${GROUP} ${vyatta_configdir} + log_action_end_msg $? + + disabled bootfile || init_bootfile + + cleanup_post_commit_hooks + + log_daemon_msg "Starting VyOS router" + disabled migrate || migrate_bootfile + + run_preconfig_script + + run_postupgrade_script + + update_interface_config + + for s in ${subinit[@]} ; do + if ! disabled $s; then + log_progress_msg $s + if ! ${vyatta_sbindir}/${s}.init start + then log_failure_msg + exit 1 + fi + fi + done + + bind_mount_boot + + disabled configure || load_bootfile + log_end_msg $? + + telinit q + chmod g-w,o-w / + + run_postconfig_scripts +} + +stop() +{ + local -i status=0 + log_daemon_msg "Stopping VyOS router" + for ((i=${#sub_inits[@]} - 1; i >= 0; i--)) ; do + s=${subinit[$i]} + log_progress_msg $s + ${vyatta_sbindir}/${s}.init stop + let status\|=$? + done + log_end_msg $status + log_action_begin_msg "Un-mounting VyOS Config" + umount ${vyatta_configdir} + log_action_end_msg $? + + systemctl stop frr.service +} + +case "$action" in + start) start ;; + stop) stop ;; + restart|force-reload) stop && start ;; + *) log_failure_msg "usage: $progname [ start|stop|restart ] [ subinit ... ]" ; + false ;; +esac + +exit $? + +# Local Variables: +# mode: shell-script +# sh-indentation: 4 +# End: |