diff options
Diffstat (limited to 'lib')
-rw-r--r-- | lib/10-core | 340 | ||||
-rw-r--r-- | lib/20-strings | 14 | ||||
-rw-r--r-- | lib/30-files | 175 | ||||
-rw-r--r-- | lib/40-os | 64 | ||||
-rw-r--r-- | lib/50-net | 37 | ||||
-rw-r--r-- | lib/50-zfs | 15 |
6 files changed, 645 insertions, 0 deletions
diff --git a/lib/10-core b/lib/10-core new file mode 100644 index 0000000..8e01afc --- /dev/null +++ b/lib/10-core @@ -0,0 +1,340 @@ +#!/bin/sh + +BOXCONF_REMOTE_PATH=/root/boxconf +BOXCONF_SSH_ARGS='-l root -o StrictHostKeyChecking=no -o UserKnownHostsFile=/dev/null -o ControlPath=~/.ssh/%r@%h:%p -o ControlMaster=auto -o ControlPersist=10m' +BOXCONF_SUPPORTED_OS='linux freebsd' +BOXCONF_SUPPORTED_DISTROS='debian' +BOXCONF_SCRIPT_DIR="${BOXCONF_ROOT}/scripts" +BOXCONF_VAR_DIR="${BOXCONF_ROOT}/vars" +BOXCONF_FILE_DIR="${BOXCONF_ROOT}/files" +BOXCONF_SITE_VAR_DIR="${BOXCONF_ROOT}/site/vars" +BOXCONF_SITE_FILE_DIR="${BOXCONF_ROOT}/site/files" +BOXCONF_SITE_SCRIPT_DIR="${BOXCONF_ROOT}/site/scripts" +BOXCONF_CA_DIR="${BOXCONF_ROOT}/site/ca" +BOXCONF_VAULT_PASSWORD_FILE="${BOXCONF_ROOT}/.vault_password" +BOXCONF_VAULT_CIPHER=aes256 + +log(){ + printf '%s: %s\n' "$PROGNAME" "$1" +} + +debug(){ + printf '%s: DEBUG: %s\n' "$PROGNAME" "$1" 1>&2 +} + +warn(){ + printf '%s: WARNING: %s\n' "$PROGNAME" "$1" 1>&2 +} + +die(){ + printf '%s: ERROR: %s\n' "$PROGNAME" "$1" 1>&2 + exit "${2:-1}" +} + +bug(){ + printf '%s: BUG: %s\n' "$PROGNAME" "$1" 1>&2 + exit 255 +} + +_boxconf_read_password(){ + # Read a password from stdin with TTY echo disabled. + # $1 = prompt + # $2 = upvar + if [ -t 0 ]; then + _bcrp_stty=$(stty -g) + stty -echo + fi + + printf '%s ' "$1" 1>&2 + read -r "$2" + + if [ -t 0 ]; then + stty "$_bcrp_stty" + echo + fi +} + +_boxconf_get_vault_password(){ + # Acquire the vault password. + # If the BOXCONF_VAULT_PASSWORD environment variable is set, use that. + # Next, try reading the password from the .vault_password file. + # If all else fails, prompt interactively. + if [ -z "${BOXCONF_VAULT_PASSWORD:-}" ]; then + if [ -f "${BOXCONF_VAULT_PASSWORD_FILE}" ]; then + BOXCONF_VAULT_PASSWORD=$(cat "${BOXCONF_VAULT_PASSWORD_FILE}") + else + _boxconf_read_password 'Enter vault password:' BOXCONF_VAULT_PASSWORD + fi + fi +} + +_boxconf_decrypt(){ + # Decrypt a file using the vault password. + # $1 = encrypted file + # $2 = plaintext output file (or stdout if unset) + _boxconf_get_vault_password + + if [ $# -gt 1 ]; then + PASS=$BOXCONF_VAULT_PASSWORD openssl enc -in "$1" -out "$2" -d "-${BOXCONF_VAULT_CIPHER}" -pass env:PASS -pbkdf2 + else + PASS=$BOXCONF_VAULT_PASSWORD openssl enc -in "$1" -d "-${BOXCONF_VAULT_CIPHER}" -pass env:PASS -pbkdf2 + fi +} + +_boxconf_is_encrypted(){ + # Check if a given file is encrypted. + head -n1 "$1" | grep -q '^Salted__' +} + +_boxconf_include(){ + # Source the script (or scripts) at the given path. + # If the path is a directory, source all its files in glob order. + # $1 = path + while [ $# -gt 0 ]; do + if [ -f "$1" ]; then + log "sourcing ${1#${BOXCONF_ROOT}/}" + BOXCONF_SOURCE=$1 + . "$BOXCONF_SOURCE" + elif [ -d "$1" ]; then + for _bci_file in "$1"/*; do + if [ -f "$_bci_file" ]; then + log "sourcing ${1#${BOXCONF_ROOT}/}" + BOXCONF_SOURCE=$_bci_file + . "$BOXCONF_SOURCE" + fi + done + fi + shift + done +} + +_boxconf_get_hostclass(){ + # For a given hostname, find its hostclass and store it in $BOXCONF_HOSTCLASS. + # Hostclass regexes are specified in the hostclasses file. + # If no hostclass matches, the hostclass is 'undefined'. + # $1 = hostname + BOXCONF_HOSTCLASS=undefined + while read -r _bcc_hostclass _bcc_regex; do + if printf '%s\n' "$1" | grep -Eq "$_bcc_regex"; then + BOXCONF_HOSTCLASS=$_bcc_hostclass + break + fi + done < "${BOXCONF_ROOT}/hostclasses" + log "using hostclass ${BOXCONF_HOSTCLASS}" +} + +_boxconf_stage(){ + # Construct a directory tree containing all files required to configure a host. + # Encrypted files will be copied in plaintext. + # $1 = target hostnmae + # $2 = staging directory path + _bcs_hostname=$1 + _bcs_stagedir=$2 + log "generating configuration tarball for ${_bcs_hostname} at ${_bcs_stagedir}" + _boxconf_get_hostclass "$_bcs_hostname" + + cp -RpL \ + "${BOXCONF_ROOT}/boxconf" \ + "${BOXCONF_ROOT}/hostclasses" \ + "${BOXCONF_ROOT}/lib" \ + "$_bcs_stagedir" + + # Compex find expression to only copy files necessary for the target host. + # This avoids leaking site-wide secrets to hosts that don't require them. + _bcs_relevant_files=$(find "${BOXCONF_ROOT}" -type f -and \( \ + -path "${BOXCONF_CA_DIR}/${_bcs_hostname}" \ + -or -path "${BOXCONF_VAR_DIR}/common" \ + -or -path "${BOXCONF_VAR_DIR}/common/*" \ + -or -path "${BOXCONF_VAR_DIR}/os/*" \ + -or -path "${BOXCONF_VAR_DIR}/distro/*" \ + -or -path "${BOXCONF_VAR_DIR}/hostclass/${BOXCONF_HOSTCLASS}" \ + -or -path "${BOXCONF_VAR_DIR}/hostclass/${BOXCONF_HOSTCLASS}/*" \ + -or -path "${BOXCONF_VAR_DIR}/hostname/${_bcs_hostname}" \ + -or -path "${BOXCONF_VAR_DIR}/hostname/${_bcs_hostname}/*" \ + -or -path "${BOXCONF_SITE_VAR_DIR}/common" \ + -or -path "${BOXCONF_SITE_VAR_DIR}/common/*" \ + -or -path "${BOXCONF_SITE_VAR_DIR}/os/*" \ + -or -path "${BOXCONF_SITE_VAR_DIR}/distro/*" \ + -or -path "${BOXCONF_SITE_VAR_DIR}/hostclass/${BOXCONF_HOSTCLASS}" \ + -or -path "${BOXCONF_SITE_VAR_DIR}/hostclass/${BOXCONF_HOSTCLASS}/*" \ + -or -path "${BOXCONF_SITE_VAR_DIR}/hostname/${_bcs_hostname}" \ + -or -path "${BOXCONF_SITE_VAR_DIR}/hostname/${_bcs_hostname}/*" \ + -or -path "${BOXCONF_SCRIPT_DIR}/common" \ + -or -path "${BOXCONF_SCRIPT_DIR}/common/*" \ + -or -path "${BOXCONF_SCRIPT_DIR}/os/*" \ + -or -path "${BOXCONF_SCRIPT_DIR}/distro/*" \ + -or -path "${BOXCONF_SCRIPT_DIR}/hostclass/${BOXCONF_HOSTCLASS}" \ + -or -path "${BOXCONF_SCRIPT_DIR}/hostclass/${BOXCONF_HOSTCLASS}/*" \ + -or -path "${BOXCONF_SCRIPT_DIR}/hostname/${_bcs_hostname}" \ + -or -path "${BOXCONF_SCRIPT_DIR}/hostname/${_bcs_hostname}/*" \ + -or -path "${BOXCONF_SITE_SCRIPT_DIR}/common" \ + -or -path "${BOXCONF_SITE_SCRIPT_DIR}/common/*" \ + -or -path "${BOXCONF_SITE_SCRIPT_DIR}/os/*" \ + -or -path "${BOXCONF_SITE_SCRIPT_DIR}/distro/*" \ + -or -path "${BOXCONF_SITE_SCRIPT_DIR}/hostclass/${BOXCONF_HOSTCLASS}" \ + -or -path "${BOXCONF_SITE_SCRIPT_DIR}/hostclass/${BOXCONF_HOSTCLASS}/*" \ + -or -path "${BOXCONF_SITE_SCRIPT_DIR}/hostname/${_bcs_hostname}" \ + -or -path "${BOXCONF_SITE_SCRIPT_DIR}/hostname/${_bcs_hostname}/*" \ + -or -path "${BOXCONF_FILE_DIR}/*.common" \ + $(printf -- "-or -path ${BOXCONF_FILE_DIR}/*.%s " ${BOXCONF_SUPPORTED_OS}) \ + $(printf -- "-or -path ${BOXCONF_FILE_DIR}/*.%s " ${BOXCONF_SUPPORTED_DISTROS}) \ + $(printf -- "-or -path ${BOXCONF_FILE_DIR}/*.${BOXCONF_HOSTCLASS}.%s " ${BOXCONF_SUPPORTED_OS}) \ + $(printf -- "-or -path ${BOXCONF_FILE_DIR}/*.%s.${BOXCONF_HOSTCLASS} " ${BOXCONF_SUPPORTED_OS}) \ + $(printf -- "-or -path ${BOXCONF_FILE_DIR}/*.${BOXCONF_HOSTCLASS}.%s " ${BOXCONF_SUPPORTED_DISTROS}) \ + $(printf -- "-or -path ${BOXCONF_FILE_DIR}/*.%s.${BOXCONF_HOSTCLASS} " ${BOXCONF_SUPPORTED_DISTROS}) \ + -or -path "${BOXCONF_FILE_DIR}/*.${BOXCONF_HOSTCLASS}" \ + -or -path "${BOXCONF_FILE_DIR}/*.${_bcs_hostname}" \ + -or -path "${BOXCONF_SITE_FILE_DIR}/*.common" \ + $(printf -- "-or -path ${BOXCONF_SITE_FILE_DIR}/*.%s " ${BOXCONF_SUPPORTED_OS}) \ + $(printf -- "-or -path ${BOXCONF_SITE_FILE_DIR}/*.%s " ${BOXCONF_SUPPORTED_DISTROS}) \ + $(printf -- "-or -path ${BOXCONF_SITE_FILE_DIR}/*.${BOXCONF_HOSTCLASS}.%s " ${BOXCONF_SUPPORTED_OS}) \ + $(printf -- "-or -path ${BOXCONF_SITE_FILE_DIR}/*.%s.${BOXCONF_HOSTCLASS} " ${BOXCONF_SUPPORTED_OS}) \ + $(printf -- "-or -path ${BOXCONF_SITE_FILE_DIR}/*.${BOXCONF_HOSTCLASS}.%s " ${BOXCONF_SUPPORTED_DISTROS}) \ + $(printf -- "-or -path ${BOXCONF_SITE_FILE_DIR}/*.%s.${BOXCONF_HOSTCLASS} " ${BOXCONF_SUPPORTED_DISTROS}) \ + -or -path "${BOXCONF_SITE_FILE_DIR}/*.${BOXCONF_HOSTCLASS}" \ + -or -path "${BOXCONF_SITE_FILE_DIR}/*.${_bcs_hostname}" \ + \) ) + + OIFS=$IFS; IFS=$'\n' + set -- $_bcs_relevant_files + IFS=$OIFS + + for _bc_stage_fullpath; do + # Calculate the file's path relative to the BOXCONF_ROOT. + _bc_stage_relpath=${_bc_stage_fullpath#${BOXCONF_ROOT}/} + + # Create the file's parent directories (if any) in the stage dir. + mkdir -p "${_bcs_stagedir}/$(dirname "$_bc_stage_relpath")" + + # Copy the file to the stage dir, decrypting if necessary. + if _boxconf_is_encrypted "$_bc_stage_fullpath"; then + _boxconf_decrypt "$_bc_stage_fullpath" "${_bcs_stagedir}/${_bc_stage_relpath}" + else + cp -p "$_bc_stage_fullpath" "${_bcs_stagedir}/${_bc_stage_relpath}" + fi + done +} + +_boxconf_deploy(){ + # Build a configuration tarball and SCP it to a host, then extract and run it. + # $1 = target hostname/IP + # $2 = hostname used for configuration + # $3..$N = original boxconf CLI args + _bc_deploy_target=$1; shift + _bc_deploy_hostname=$2; shift + + _bc_stagedir=$(mktemp -d -t "boxconf-${_bc_deploy_hostname}") + trap 'rm -rf -- "$_bc_stagedir"' HUP INT QUIT TERM ABRT EXIT + + _boxconf_stage "$_bc_deploy_hostname" "$_bc_stagedir" + + log "deploying tarball for ${_bc_deploy_hostname} to ${_bc_deploy_target}:${BOXCONF_REMOTE_PATH}" + + # Create the boxconf directory with mode 700 on the target host. + ssh ${BOXCONF_SSH_ARGS} "$_bc_deploy_target" -- rm -rf "$BOXCONF_REMOTE_PATH" '&&' install -d -m 700 "$BOXCONF_REMOTE_PATH" + + # Send the boxconf tarball to the target host, and extract it. + tar -C "$_bc_stagedir" -czf - ./ \ + | ssh ${BOXCONF_SSH_ARGS} "$_bc_deploy_target" -- tar -xzf - -C "$BOXCONF_REMOTE_PATH" + + # Re-exec boxconf on the target host. + ssh ${BOXCONF_SSH_ARGS} "$_bc_deploy_target" -- "${BOXCONF_REMOTE_PATH}/boxconf" -X "$@" +} + +_boxconf_run(){ + # This is the main entry point for boxconf when running on the target host. + # Gather basic info about the target system, then source all the vars and scripts + # files, in order of lowest to highest precedence. + + log "now running on target host (current hostname: $(hostname -s))" + + # Determine OS family. + case "$(uname)" in + Linux) BOXCONF_OS=linux ;; + FreeBSD) BOXCONF_OS=freebsd ;; + *) die "unsupported os family: $(uname)" ;; + esac + log "detected os ${BOXCONF_OS}" + + # Determine default interface and IPv4 address. + case $BOXCONF_OS in + freebsd) + BOXCONF_DEFAULT_INTERFACE=$(route -4n get default | awk '$1 == "interface:" { print $2 }') + BOXCONF_DEFAULT_IPV4=$(ifconfig "$BOXCONF_DEFAULT_INTERFACE" | awk '$1 == "inet" { print $2 }') + ;; + linux) + BOXCONF_DEFAULT_INTERFACE=$(ip -4 -o route get to 1 | awk '{print $5}') + BOXCONF_DEFAULT_IPV4=$(ip -4 -o route get to 1 | awk '{print $7}') + ;; + esac + log "detected default interface ${BOXCONF_DEFAULT_INTERFACE}" + log "detected default ip ${BOXCONF_DEFAULT_IPV4}" + + # Determine OS distribution. + if [ -f /etc/os-release ]; then + BOXCONF_DISTRO=$(. /etc/os-release; printf '%s' "$ID") + BOXCONF_OS_VERSION=$(. /etc/os-release; printf '%s' "$VERSION_ID") + else + die 'unknown os distribution' + fi + log "detected distro ${BOXCONF_DISTRO}" + log "detected os version ${BOXCONF_OS_VERSION}" + + case $BOXCONF_DISTRO in + freebsd|debian) : ;; # supported + *) die "unsupported os distribution: ${BOXCONF_DISTRO}" ;; + esac + + # Determine virtualization type. + BOXCONF_VIRTUALIZATION_TYPE=none + case $BOXCONF_OS in + linux) + grep -q '^flags.* hypervisor' /proc/cpuinfo && BOXCONF_VIRTUALIZATION_TYPE=vm + ;; + freebsd) + if [ "$(sysctl -n security.jail.jailed)" = 1 ]; then + BOXCONF_VIRTUALIZATION_TYPE=jail + elif [ -n "$(sysctl -n hw.hv_vendor)" ]; then + BOXCONF_VIRTUALIZATION_TYPE=vm + fi + ;; + esac + log "detected virtualization type ${BOXCONF_VIRTUALIZATION_TYPE}" + + # Determine hostname. + : "${BOXCONF_HOSTNAME:=$(hostname -s)}" + log "using hostname ${BOXCONF_HOSTNAME}" + + # Determine hostclass. + _boxconf_get_hostclass "$BOXCONF_HOSTNAME" + [ "$BOXCONF_HOSTCLASS" = undefined ] && warn 'unable to determine hostclass' + + # Source vars, then scripts, each in order of lowest to highest precedence. + _boxconf_include \ + "${BOXCONF_VAR_DIR}/common" \ + "${BOXCONF_SITE_VAR_DIR}/common" \ + "${BOXCONF_VAR_DIR}/os/${BOXCONF_OS}" \ + "${BOXCONF_SITE_VAR_DIR}/os/${BOXCONF_OS}" \ + "${BOXCONF_VAR_DIR}/distro/${BOXCONF_DISTRO}" \ + "${BOXCONF_SITE_VAR_DIR}/distro/${BOXCONF_DISTRO}" \ + "${BOXCONF_VAR_DIR}/hostclass/${BOXCONF_HOSTCLASS}" \ + "${BOXCONF_SITE_VAR_DIR}/hostclass/${BOXCONF_HOSTCLASS}" \ + "${BOXCONF_VAR_DIR}/hostname/${BOXCONF_HOSTNAME}" \ + "${BOXCONF_SITE_VAR_DIR}/hostname/${BOXCONF_HOSTNAME}" \ + "${BOXCONF_SCRIPT_DIR}/common" \ + "${BOXCONF_SITE_SCRIPT_DIR}/common" \ + "${BOXCONF_SCRIPT_DIR}/os/${BOXCONF_OS}" \ + "${BOXCONF_SITE_SCRIPT_DIR}/os/${BOXCONF_OS}" \ + "${BOXCONF_SCRIPT_DIR}/distro/${BOXCONF_DISTRO}" \ + "${BOXCONF_SITE_SCRIPT_DIR}/distro/${BOXCONF_DISTRO}" \ + "${BOXCONF_SCRIPT_DIR}/hostclass/${BOXCONF_HOSTCLASS}" \ + "${BOXCONF_SITE_SCRIPT_DIR}/hostclass/${BOXCONF_HOSTCLASS}" \ + "${BOXCONF_SCRIPT_DIR}/hostname/${BOXCONF_HOSTNAME}" \ + "${BOXCONF_SITE_SCRIPT_DIR}/hostname/${BOXCONF_HOSTNAME}" + + # Reboot the target host if requested. + if [ "${BOXCONF_NEED_REBOOT:-}" = true ]; then + log '$BOXCONF_NEED_REBOOT was set. Rebooting host...' + reboot + fi +} diff --git a/lib/20-strings b/lib/20-strings new file mode 100644 index 0000000..f04f68d --- /dev/null +++ b/lib/20-strings @@ -0,0 +1,14 @@ +#!/bin/sh + +join(){ + # Join strings by a given delimiter. + # $1 = delimiter + # $2..$N = strings + _bcj_delim=$1; shift + _bcj_result='' + while [ $# -gt 0 ]; do + _bcj_result="${_bcj_result:+${_bcj_result}${_bcj_delim}}${1}" + shift + done + printf '%s' "$_bcj_result" +} diff --git a/lib/30-files b/lib/30-files new file mode 100644 index 0000000..c7b2000 --- /dev/null +++ b/lib/30-files @@ -0,0 +1,175 @@ +#!/bin/sh + +_boxconf_try_files(){ + # Get the highest precedence file for a given path. + # $1 = target file path + for _bcsf_file in \ + "${BOXCONF_SITE_FILE_DIR}${1}.${BOXCONF_HOSTNAME}" \ + "${BOXCONF_FILE_DIR}${1}.${BOXCONF_HOSTNAME}" \ + "${BOXCONF_SITE_FILE_DIR}${1}.${BOXCONF_HOSTCLASS}.${BOXCONF_OS_DISTRIBUTION}" \ + "${BOXCONF_FILE_DIR}${1}.${BOXCONF_HOSTCLASS}.${BOXCONF_OS_DISTRIBUTION}" \ + "${BOXCONF_SITE_FILE_DIR}${1}.${BOXCONF_OS_DISTRIBUTION}.${BOXCONF_HOSTCLASS}" \ + "${BOXCONF_FILE_DIR}${1}.${BOXCONF_OS_DISTRIBUTION}.${BOXCONF_HOSTCLASS}" \ + "${BOXCONF_SITE_FILE_DIR}${1}.${BOXCONF_HOSTCLASS}.${BOXCONF_OS_FAMILY}" \ + "${BOXCONF_FILE_DIR}${1}.${BOXCONF_HOSTCLASS}.${BOXCONF_OS_FAMILY}" \ + "${BOXCONF_SITE_FILE_DIR}${1}.${BOXCONF_OS_FAMILY}.${BOXCONF_HOSTCLASS}" \ + "${BOXCONF_FILE_DIR}${1}.${BOXCONF_OS_FAMILY}.${BOXCONF_HOSTCLASS}" \ + "${BOXCONF_SITE_FILE_DIR}${1}.${BOXCONF_HOSTCLASS}" \ + "${BOXCONF_FILE_DIR}${1}.${BOXCONF_HOSTCLASS}" \ + "${BOXCONF_SITE_FILE_DIR}${1}.${BOXCONF_OS_DISTRIBUTION}" \ + "${BOXCONF_FILE_DIR}${1}.${BOXCONF_OS_DISTRIBUTION}" \ + "${BOXCONF_SITE_FILE_DIR}${1}.${BOXCONF_OS_FAMILY}" \ + "${BOXCONF_FILE_DIR}${1}.${BOXCONF_OS_FAMILY}" \ + "${BOXCONF_SITE_FILE_DIR}${1}.common" \ + "${BOXCONF_FILE_DIR}${1}.common" + do + if [ -f "$_bcsf_file" ]; then + echo "$_bcsf_file" + return + fi + done + + bug "no source file found for ${1}" +} + +install_file(){ + # Install the files at the given paths into the target system. + # The source file is chosen from the matching file in the boxconf directory with + # the highest-precedence suffix. + # Takes options similar to the `install` command. + _bcif_install_args='-Cv' + _bcif_mode=0644 + + while getopts m:o:g: _bcif_opt; do + case $_bcif_opt in + m) _bcif_mode=$OPTARG ;; + o) _bcif_install_args="${_bcif_install_args} -o ${OPTARG}" ;; + g) _bcif_install_args="${_bcif_install_args} -g ${OPTARG}" ;; + esac + done + shift $((OPTIND - 1)) + + while [ $# -gt 0 ]; do + _bcif_src=$(_boxconf_try_files "$1") + install -m "$_bcif_mode" $_bcif_install_args "$_bcif_src" "$1" + shift + done +} + +install_directory(){ + # Create the specified directories in the target system. + # Takes options similar to the `install` command. + _bcid_install_args='-Cdv' + _bcid_mode=0755 + + while getopts m:o:g: _bcid_opt; do + case $_bcid_opt in + m) _bcid_mode=$OPTARG ;; + o) _bcid_install_args="${_bcid_install_args} -o ${OPTARG}" ;; + g) _bcid_install_args="${_bcid_install_args} -g ${OPTARG}" ;; + esac + done + shift $((OPTIND - 1)) + + while [ $# -gt 0 ]; do + install -m "$_bcid_mode" $_bcid_install_args "$1" + shift + done +} + +install_template(){ + # Install the templatess at the given paths into the target system. + # The source template is chosen from the matching file in the boxconf directory + # with the highest-precedence suffix. Template is rendered as a shell heredoc. + # Takes options similar to the `install` command. + _bcit_install_args='-Cv' + _bcit_mode=0644 + + while getopts m:o:g: _bcit_opt; do + case $_bcit_opt in + m) _bcit_mode=$OPTARG ;; + o) _bcit_install_args="${_bcit_install_args} -o ${OPTARG}" ;; + g) _bcit_install_args="${_bcit_install_args} -g ${OPTARG}" ;; + esac + done + shift $((OPTIND - 1 )) + + while [ $# -gt 0 ]; do + _bcit_src=$(_boxconf_try_files "$1") + + eval "cat <<__BOXCONF_EOF__ >${_bcit_src}.render +$(cat "$_bcit_src") +__BOXCONF_EOF__ +" + [ -s "${_bcit_src}.render" ] || bug "failed to render template: ${_bcit_src}" + install -m "$_bcit_mode" $_bcit_install_args "${_bcit_src}.render" "$1" + shift + done +} + +install_certificate(){ + # Install a certificate from the CA dir into the target system. + # Takes options similar to the `install` command. + # $1 = certificate name + # $2 = target path + _bcic_install_args='-Cv' + _bcic_mode=0644 + + while getopts m:o:g: _bcic_opt; do + case $_bcic_opt in + m) _bcic_mode=$OPTARG ;; + o) _bcic_install_args="${_bcic_install_args} -o ${OPTARG}" ;; + g) _bcic_install_args="${_bcic_install_args} -g ${OPTARG}" ;; + esac + done + shift $((OPTIND - 1)) + + [ -f "${BOXCONF_CA_DIR}/${BOXCONF_HOSTNAME}/${1}.fullchain.crt" ] \ + || bug "no certificate exists for ${BOXCONF_HOSTNAME}/${1}" + + install -m "$_bcic_mode" $_bcic_install_args "${BOXCONF_CA_DIR}/${BOXCONF_HOSTNAME}/${1}.fullchain.crt" "$2" +} + +install_certificate_key(){ + # Install a certificate's private key from the CA dir into the target system. + # Takes options similar to the `install` command. + # $1 = certificate name + # $2 = target path + _bcick_install_args='-Cv' + _bcick_mode=0600 + + while getopts m:o:g: _bcick_opt; do + case $_bcick_opt in + m) _bcick_mode=$OPTARG ;; + o) _bcick_install_args="${_bcick_install_args} -o ${OPTARG}" ;; + g) _bcick_install_args="${_bcick_install_args} -g ${OPTARG}" ;; + esac + done + shift $((OPTIND - 1)) + + [ -f "${BOXCONF_CA_DIR}/${BOXCONF_HOSTNAME}/${1}.key" ] \ + || bug "no key exists for ${BOXCONF_HOSTNAME}/${1}" + + install -m "$_bcick_mode" $_bcick_install_args "${BOXCONF_CA_DIR}/${BOXCONF_HOSTNAME}/${1}.key" "$2" +} + +install_ca_certificate(){ + # Install a the root CA from the CA dir into the target system. + # Takes options similar to the `install` command. + # $1 = target path + _bcicc_install_args='-Cv' + _bcicc_mode=0644 + + while getopts m:o:g: _bcicc_opt; do + case $_bcicc_opt in + m) _bcicc_mode=$OPTARG ;; + o) _bcicc_install_args="${_bcicc_install_args} -o ${OPTARG}" ;; + g) _bcicc_install_args="${_bcicc_install_args} -g ${OPTARG}" ;; + esac + done + shift $((OPTIND - 1)) + + [ -f "${BOXCONF_CA_DIR}/ca.crt" ] || bug 'CA certificate not found' + + install -m "$_bcicc_mode" $_bcicc_install_args "${BOXCONF_CA_DIR}/ca.crt" "$1" +} diff --git a/lib/40-os b/lib/40-os new file mode 100644 index 0000000..cedeb86 --- /dev/null +++ b/lib/40-os @@ -0,0 +1,64 @@ +#!/bin/sh + +set_sysctl(){ + # Set sysctl value(s) and persist them to /etc/sysctl.conf. + # $1..$N = sysctl values (as "name=value" strings) + while [ $# -gt 0 ]; do + sysctl "$1" + sed -i.bak "/^${1%%=*}=/{ +h +s/=.*/=${1#*=}/ +} +\${ +x +/^\$/{ +s//${1}/ +H +} +x +}" /etc/sysctl.conf + shift + done + rm -f /etc/sysctl.conf.bak +} + +set_loader_conf(){ + # Set the FreeBSD bootloader options in /boot/loader.conf. + # The host will be rebooted if the file is changed. + # $1..$N = bootloader options (as "name=value" strings) + [ "$BOXCONF_OS_FAMILY" = freebsd ] || bug 'set_loader_conf can only be used on FreeBSD' + + while [ $# -gt 0 ]; do + grep -qxF "${1%%=*}=\"${1#*=}\"" /boot/loader.conf || BOXCONF_NEED_REBOOT=true + sed -i.bak "/^${1%%=*}=/{ +h +s/=.*/=\"${1#*=}\"/ +} +\${ +x +/^\$/{ +s//${1%%=*}=\"${1#*=}\"/ +H +} +x +}" /boot/loader.conf + shift + done + rm -f /boot/loader.conf.bak +} + +load_kernel_module(){ + # Ensure the given kernel modules are loaded. + # $1..$N = bootloader options (as "name=value" strings) + case $BOXCONF_OS_FAMILY in + freebsd) + while [ $# -gt 0 ]; do + kldstat -qn "$1" || kldload -v "$1" + shift + done + ;; + *) + die "load_kernel_module unimplemented for ${BOXCONF_OS_FAMILY}" + ;; + esac +} diff --git a/lib/50-net b/lib/50-net new file mode 100644 index 0000000..37b1cb3 --- /dev/null +++ b/lib/50-net @@ -0,0 +1,37 @@ +#!/bin/sh + +_boxconf_ip2dec(){ + # helper function for ip_in_subnet + while [ $# -gt 0 ]; do + echo "$1" | { + IFS=./ read -r _bcipd_a _bcipd_b _bcipd_c _bcipd_d _bcipd_e + [ -n "$_bcipd_e" ] || _bcipd_e=32 + printf '%s %s ' "$((_bcipd_a<<24|_bcipd_b<<16|_bcipd_c<<8|_bcipd_d))" "$((-1<<(32-_bcipd_e)))" + } + shift + done +} + +ip_in_subnet(){ + # Check if an IP address is contained within a subnet. + # $1 = IPv4 address + # $2 = network cidr + _boxconf_ip2dec "$1" "$2" | { + read -r _bciis_a1 _bciis_m1 _bciis_a2 _bciis_m2 ||: + test "$(( (_bciis_a1 & _bciis_m2) == (_bciis_a2 & _bciis_m2) && _bciis_m1 >= _bciis_m2 ))" -eq 1 + } +} + +prefix2netmask(){ + # Convert a network prefix to its netmask address. + # For example, 24 returns '255.255.255.0' + # $1 = network prefix value + _bcp2n_val=$(( 0xffffffff ^ ((1 << (32 - $1)) - 1) )) + echo "$(( (_bcp2n_val >> 24) & 0xff )).$(( (_bcp2n_val >> 16) & 0xff )).$(( (_bcp2n_val >> 8) & 0xff )).$(( _bcp2n_val & 0xff ))" +} + +ip2rdns(){ + # Convert an IPv4 address to its in-addr.arpa reverse DNS name. + # $1 = IPv4 address + echo "$1" | awk -F. '{print $4"."$3"."$2"."$1".in-addr.arpa"}' +} diff --git a/lib/50-zfs b/lib/50-zfs new file mode 100644 index 0000000..2948601 --- /dev/null +++ b/lib/50-zfs @@ -0,0 +1,15 @@ +#!/bin/sh + +dataset_exists(){ + # Check if a ZFS dataset exists. + # $1 = dataset name + zfs list "$1" > /dev/null 2>&1 +} + +create_dataset(){ + # Create a ZFS dataset if it doesn't already exists. + # All options are passed directly to `zfs create`. Assumes the dataset name is + # passed as the final argument. + eval "_bccd_dataset=\$$#" + dataset_exists "$_bccd_dataset" || zfs create -v "$@" +} |