You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
548 lines
14 KiB
548 lines
14 KiB
#!/bin/sh /etc/rc.common
|
|
# Copyright (C) 2007-2015 OpenWrt.org
|
|
|
|
START=70
|
|
STOP=01
|
|
|
|
USE_PROCD=1
|
|
|
|
KEEPALIVED_CONF=/tmp/keepalived.conf
|
|
|
|
INDENT_1="\t"
|
|
INDENT_2="${INDENT_1}${INDENT_1}"
|
|
INDENT_3="${INDENT_1}${INDENT_1}${INDENT_1}"
|
|
INDENT_4="${INDENT_1}${INDENT_1}${INDENT_1}${INDENT_1}"
|
|
|
|
config_section_open() {
|
|
local tag="$1"
|
|
local name="$2"
|
|
|
|
printf '%s' "$tag" >> "$KEEPALIVED_CONF"
|
|
[ -n "$name" ] && printf ' %s' "$name" >> "$KEEPALIVED_CONF"
|
|
printf ' {\n' >> "$KEEPALIVED_CONF"
|
|
}
|
|
|
|
config_section_close() {
|
|
printf '}\n\n' >> "$KEEPALIVED_CONF"
|
|
}
|
|
|
|
config_foreach_wrapper() {
|
|
local section="$1"
|
|
local function="$1"
|
|
|
|
# Convention is that 'function' and 'section' are the same
|
|
config_foreach "$function" "$section"
|
|
}
|
|
|
|
print_elems_indent() {
|
|
local config="$1"
|
|
shift
|
|
local indent="$1"
|
|
shift
|
|
|
|
[ -z "$indent" ] && indent="$INDENT_1"
|
|
for opt in "$@"; do
|
|
local "$opt"
|
|
local optval
|
|
local no_val=0
|
|
if [ "${opt:0:7}" = "no_val_" ]; then
|
|
opt="${opt:7}"
|
|
no_val=1
|
|
fi
|
|
config_get "$opt" "$config" "$opt"
|
|
eval optval=\$"$opt"
|
|
[ -z "$optval" ] && continue
|
|
printf '%b%s' "$indent" "$opt" >> "$KEEPALIVED_CONF"
|
|
[ "$no_val" = "0" ] && {
|
|
local words=0
|
|
words="$(echo "$optval" | wc -w)"
|
|
if [ "$words" -gt 1 ]; then
|
|
printf ' "%s"' "$optval" >> "$KEEPALIVED_CONF"
|
|
else
|
|
printf ' %s' "$optval" >> "$KEEPALIVED_CONF"
|
|
fi
|
|
}
|
|
printf '\n' >> "$KEEPALIVED_CONF"
|
|
done
|
|
unset optval
|
|
}
|
|
|
|
print_list_indent() {
|
|
local lst="$1"
|
|
local indent="$2"
|
|
local lst_elems
|
|
[ -z "$indent" ] && indent="$INDENT_1"
|
|
|
|
eval lst_elems=\$"$lst"
|
|
[ -z "$lst_elems" ] && return 0
|
|
|
|
printf '%b%s {\n' "$indent" "$lst" >> "$KEEPALIVED_CONF"
|
|
for e in $lst_elems; do
|
|
printf '%b%s\n' "${indent}${INDENT_1}" "$e">> "$KEEPALIVED_CONF"
|
|
done
|
|
printf '%b}\n' "$indent" >> "$KEEPALIVED_CONF"
|
|
}
|
|
|
|
print_notify() {
|
|
local type="$1"
|
|
shift
|
|
local name="$1"
|
|
shift
|
|
for notify in "$@"; do
|
|
printf '%b%s' "${INDENT_1}" "$notify">> "$KEEPALIVED_CONF"
|
|
notify="$(echo "$notify" | tr 'a-z' 'A-Z')"
|
|
printf ' "/bin/busybox env -i ACTION=%s TYPE=%s NAME=%s /sbin/hotplug-call keepalived"\n' "$notify" "$type" "$name" >> "$KEEPALIVED_CONF"
|
|
done
|
|
}
|
|
|
|
globals() {
|
|
local notification_email
|
|
|
|
printf '%bscript_user root\n' "${INDENT_1}" >> "$KEEPALIVED_CONF"
|
|
printf '%benabled_script_security\n' "${INDENT_1}" >> "$KEEPALIVED_CONF"
|
|
|
|
config_get notification_email "$1" notification_email
|
|
print_list_indent notification_email
|
|
|
|
print_elems_indent "$1" "$INDENT_1" \
|
|
notification_email_from \
|
|
smtp_server \
|
|
smtp_connect_timeout \
|
|
router_id \
|
|
vrrp_mcast_group4 \
|
|
vrrp_mcast_group6 \
|
|
vrrp_startup_delay
|
|
}
|
|
|
|
print_ipaddress_indent() {
|
|
local section="$1"
|
|
local curr_ipaddr="$2"
|
|
local indent="$3"
|
|
|
|
local address device scope name
|
|
config_get name "$section" name
|
|
[ "$name" != "$curr_ipaddr" ] && return 0
|
|
|
|
config_get address "$section" address
|
|
config_get device "$section" device
|
|
config_get scope "$section" scope
|
|
|
|
# Default indent
|
|
[ -z "$indent" ] && indent="$INDENT_1"
|
|
|
|
# If no address exit
|
|
[ -z "$address" ] && return 0
|
|
|
|
if [ -z "$device" ]; then
|
|
printf '%b%s' "$indent" "$address" >> "$KEEPALIVED_CONF"
|
|
else
|
|
# Add IP address/netmask and device
|
|
printf '%b%s dev %s' "$indent" "$address" "$device">> "$KEEPALIVED_CONF"
|
|
# Add scope
|
|
[ -n "$scope" ] && printf ' scope %s' "$scope" >> "$KEEPALIVED_CONF"
|
|
fi
|
|
|
|
printf '\n' >> "$KEEPALIVED_CONF"
|
|
}
|
|
|
|
static_ipaddress() {
|
|
local address
|
|
config_get address "$1" address
|
|
for a in $address; do
|
|
config_foreach print_ipaddress_indent ipaddress "$a"
|
|
done
|
|
}
|
|
|
|
print_route_indent() {
|
|
local section="$1"
|
|
local curr_route="$2"
|
|
local indent="$3"
|
|
|
|
local name blackhole address src_addr gateway device scope table
|
|
|
|
config_get name "$section" name
|
|
[ "$name" != "$curr_route" ] && return 0
|
|
|
|
config_get_bool blackhole "$section" blackhole 0
|
|
config_get address "$section" address
|
|
config_get src_addr "$section" src_addr
|
|
config_get gateway "$section" gateway
|
|
config_get device "$section" device
|
|
config_get table "$section" table
|
|
|
|
# If no address exit
|
|
[ -z "$address" ] && return 0
|
|
|
|
# Default indent
|
|
[ -z "$indent" ] && indent="$INDENT_1"
|
|
|
|
[ "$blackhole" -gt 0 ] && {
|
|
printf '%bblackhole %s\n' "$indent" "$address" >> "$KEEPALIVED_CONF"
|
|
return 0
|
|
}
|
|
# Add src addr or address
|
|
if [ -n "$src_addr" ]; then
|
|
printf '%bsrc %s %s' "$indent" "$src_addr" "$address" >> "$KEEPALIVED_CONF"
|
|
else
|
|
[ -z "$device" ] && return 0
|
|
printf '%b%s' "$indent" "$address" >> "$KEEPALIVED_CONF"
|
|
fi
|
|
# Add route/gateway
|
|
[ -n "$gateway" ] && printf ' via %s' "$gateway" >> "$KEEPALIVED_CONF"
|
|
# Add device
|
|
printf ' dev %s' "$device" >> "$KEEPALIVED_CONF"
|
|
# Add scope
|
|
[ -n "$scope" ] && printf ' scope %s' "$scope" >> "$KEEPALIVED_CONF"
|
|
# Add table
|
|
[ -n "$table" ] && printf ' table %s' "$table" >> "$KEEPALIVED_CONF"
|
|
printf '\n' >> "$KEEPALIVED_CONF"
|
|
|
|
}
|
|
|
|
print_track_elem_indent() {
|
|
local section="$1"
|
|
local curr_track_elem="$2"
|
|
local indent="$3"
|
|
|
|
local name value
|
|
config_get name "$section" name
|
|
[ "$name" != "$curr_track_elem" ] && return 0
|
|
|
|
config_get value "$section" value
|
|
config_get weight "$section" weight
|
|
|
|
[ -z "$value" ] && return 0
|
|
|
|
printf '%b%s' "$indent" "$value" >> "$KEEPALIVED_CONF"
|
|
[ -n "$weight" ] && printf ' weight %s' "$weight" >> "$KEEPALIVED_CONF"
|
|
printf '\n' >> "$KEEPALIVED_CONF"
|
|
}
|
|
|
|
static_routes() {
|
|
local route
|
|
config_get route "$1" route
|
|
for r in $route; do
|
|
config_foreach print_route_indent route "$r"
|
|
done
|
|
}
|
|
|
|
# Count 'vrrp_instance' with the given name ; called by vrrp_instance_check()
|
|
vrrp_instance_name_count() {
|
|
local name
|
|
config_get name "$1" name
|
|
[ "$name" = "$2" ] && count="$((count + 1))"
|
|
}
|
|
|
|
# Check if there's a 'vrrp_instance' section with the given name
|
|
vrrp_instance_check() {
|
|
local count="0"
|
|
local name="$1"
|
|
config_foreach vrrp_instance_name_count vrrp_instance "$name"
|
|
[ $count -gt 0 ] && return 0 || return 1
|
|
}
|
|
|
|
vrrp_sync_group() {
|
|
local group name
|
|
local valid_group
|
|
|
|
# No name for group, exit
|
|
config_get name "$1" name
|
|
[ -z "$name" ] && return 0
|
|
|
|
# No members for group, exit
|
|
config_get group "$1" group
|
|
[ -z "$group" ] && return 0
|
|
|
|
# Check if we have 'vrrp_instance's defined for
|
|
# each member and remove names with not vrrp_instance defined
|
|
for m in $group; do
|
|
vrrp_instance_check "$m" && valid_group="$valid_group $m"
|
|
done
|
|
[ -z "$valid_group" ] && return 0
|
|
|
|
config_section_open "vrrp_sync_group" "$name"
|
|
|
|
group="$valid_group"
|
|
print_list_indent group
|
|
|
|
print_elems_indent "$1" "$INDENT_1" no_val_smtp_alert no_val_global_tracking
|
|
|
|
print_notify "GROUP" "$name" notify_backup notify_master \
|
|
notify_fault notify
|
|
|
|
config_section_close
|
|
}
|
|
|
|
vrrp_instance() {
|
|
local name auth_type auth_pass
|
|
|
|
config_get name "$1" name
|
|
[ -z "$name" ] && return 0
|
|
|
|
config_section_open "vrrp_instance" "$name"
|
|
|
|
config_get auth_type "$1" auth_type
|
|
config_get auth_pass "$1" auth_pass
|
|
[ -n "$auth_type" ] && [ -n "$auth_pass" ] && {
|
|
printf '%bauthentication {\n' "${INDENT_1}" >> "$KEEPALIVED_CONF"
|
|
printf '%bauth_type %s\n' "${INDENT_2}" "$auth_type" >> "$KEEPALIVED_CONF"
|
|
printf '%bauth_pass %s\n' "${INDENT_2}" "$auth_pass" >> "$KEEPALIVED_CONF"
|
|
printf '%b}\n' "${INDENT_1}" >> "$KEEPALIVED_CONF"
|
|
}
|
|
|
|
print_elems_indent "$1" "$INDENT_1" state interface \
|
|
mcast_src_ip unicast_src_ip virtual_router_id version priority \
|
|
advert_int preempt_delay debug \
|
|
lvs_sync_daemon_interface garp_master_delay garp_master_refresh \
|
|
garp_master_repeat garp_master_refresh_repeat \
|
|
no_val_vmac_xmit_base no_val_native_ipv6 no_val_accept \
|
|
no_val_dont_track_primary no_val_smtp_alert no_val_nopreempt \
|
|
no_val_use_vmac
|
|
|
|
print_notify "INSTANCE" "$name" notify_backup notify_master \
|
|
notify_fault notify_stop
|
|
|
|
# Handle virtual_ipaddress & virtual_ipaddress_excluded lists
|
|
for opt in virtual_ipaddress virtual_ipaddress_excluded; do
|
|
config_get "$opt" "$1" "$opt"
|
|
eval optval=\$$opt
|
|
[ -z "$optval" ] && continue
|
|
printf '%b%s {\n' "${INDENT_1}" "$opt" >> "$KEEPALIVED_CONF"
|
|
for a in $optval; do
|
|
config_foreach print_ipaddress_indent ipaddress "$a" "$INDENT_2"
|
|
done
|
|
printf '%b}\n' "${INDENT_1}" >> "$KEEPALIVED_CONF"
|
|
done
|
|
|
|
# Handle virtual_routes
|
|
for opt in virtual_routes; do
|
|
config_get "$opt" "$1" "$opt"
|
|
eval optval=\$$opt
|
|
[ -z "$optval" ] && continue
|
|
printf '%b%s {\n' "${INDENT_1}" "$opt" >> "$KEEPALIVED_CONF"
|
|
for r in $optval; do
|
|
config_foreach print_route_indent route "$r" "$INDENT_2"
|
|
done
|
|
printf '%b}\n' "${INDENT_1}" >> "$KEEPALIVED_CONF"
|
|
done
|
|
|
|
# Handle track_script lists
|
|
for opt in track_script; do
|
|
config_get "$opt" "$1" "$opt"
|
|
eval optval=\$$opt
|
|
[ -z "$optval" ] && continue
|
|
printf '%b%s {\n' "${INDENT_1}" "$opt" >> "$KEEPALIVED_CONF"
|
|
for t in $optval; do
|
|
printf '%b%s\n' "${INDENT_2}" "$optval" >> "$KEEPALIVED_CONF"
|
|
done
|
|
printf '%b}\n' "${INDENT_1}" >> "$KEEPALIVED_CONF"
|
|
done
|
|
|
|
# Handle track_interface lists
|
|
for opt in track_interface; do
|
|
config_get "$opt" "$1" "$opt"
|
|
eval optval=\$$opt
|
|
[ -z "$optval" ] && continue
|
|
printf '%b%s {\n' "${INDENT_1}" "$opt" >> "$KEEPALIVED_CONF"
|
|
for t in $optval; do
|
|
config_foreach print_track_elem_indent track_interface "$t" "$INDENT_2"
|
|
done
|
|
printf '%b}\n' "${INDENT_1}" >> "$KEEPALIVED_CONF"
|
|
done
|
|
|
|
# Handle simple lists of strings (with no spaces in between)
|
|
for opt in unicast_peer; do
|
|
config_get "$opt" "$1" "$opt"
|
|
print_list_indent "$opt"
|
|
done
|
|
unset optval
|
|
|
|
config_section_close
|
|
}
|
|
|
|
vrrp_script() {
|
|
local name
|
|
|
|
config_get name "$1" name
|
|
[ -z "$name" ] && return 0
|
|
|
|
config_section_open "vrrp_script" "$name"
|
|
|
|
print_elems_indent "$1" "$INDENT_1" script interval weight fall rise
|
|
|
|
config_section_close
|
|
}
|
|
|
|
url() {
|
|
local url="$2"
|
|
|
|
local name path digest
|
|
|
|
config_get name "$1" name
|
|
[ "$url" = "$name" ] || return 0
|
|
|
|
config_get path "$1" path
|
|
config_get digest "$1" digest
|
|
|
|
[ -n "$digest" ] && [ -n "$path" ] && {
|
|
printf '%burl {\n' "${INDENT_3}" >> "$KEEPALIVED_CONF"
|
|
printf '%bpath %s\n' "${INDENT_4}" "$path" >> "$KEEPALIVED_CONF"
|
|
printf '%bdigest %s\n' "${INDENT_4}" "$digest" >> "$KEEPALIVED_CONF"
|
|
printf '%b}\n' "${INDENT_3}" >> "$KEEPALIVED_CONF"
|
|
}
|
|
}
|
|
|
|
url_list() {
|
|
config_foreach url url "$1"
|
|
}
|
|
|
|
real_server() {
|
|
local server="$2"
|
|
|
|
local enabled name weight ipaddr port check
|
|
|
|
config_get_bool enabled "$1" enabled 1
|
|
[ "$enabled" -eq 1 ] || return 0
|
|
|
|
config_get name "$1" name
|
|
[ "$server" = "$name" ] || return 0
|
|
|
|
config_get weight "$1" weight
|
|
[ -n "$weight" ] || return 0
|
|
|
|
config_get ipaddr "$1" ipaddr
|
|
config_get port "$1" port
|
|
config_get check "$1" check
|
|
|
|
[ -n "$ipaddr" ] && [ -n "$port" ] && {
|
|
printf '%breal_server %s %d {\n' "${INDENT_1}" "$ipaddr" "$port" >> "$KEEPALIVED_CONF"
|
|
printf '%bweight %d\n' "${INDENT_2}" "$weight" >> "$KEEPALIVED_CONF"
|
|
case "$check" in
|
|
TCP_CHECK)
|
|
printf '%b%s {\n' "${INDENT_2}" "$check" >> "$KEEPALIVED_CONF"
|
|
print_elems_indent "$1" "$INDENT_3" connect_timeout \
|
|
connect_port
|
|
printf '%b}\n' "${INDENT_2}" >> "$KEEPALIVED_CONF"
|
|
;;
|
|
MISC_CHECK)
|
|
printf '%b%s {\n' "${INDENT_2}" "$check" >> "$KEEPALIVED_CONF"
|
|
print_elems_indent "$1" "$INDENT_3" misc_path
|
|
printf '%b}\n' "${INDENT_2}" >> "$KEEPALIVED_CONF"
|
|
;;
|
|
HTTP_GET | SSL_GET)
|
|
printf '%b%s {\n' "${INDENT_2}" "$check" >> "$KEEPALIVED_CONF"
|
|
print_elems_indent "$1" "$INDENT_3" connect_timeout \
|
|
connect_port nb_get_retry delay_before_retry
|
|
# Handle url list
|
|
config_list_foreach "$1" url url_list
|
|
printf '%b}\n' "${INDENT_2}" >> "$KEEPALIVED_CONF"
|
|
;;
|
|
esac
|
|
printf '%b}\n' "${INDENT_1}" >> "$KEEPALIVED_CONF"
|
|
}
|
|
}
|
|
|
|
real_server_list() {
|
|
config_foreach real_server real_server "$1"
|
|
}
|
|
|
|
virtual_server() {
|
|
local enabled ipaddr port lb_algo sorry_server_ip sorry_server_port
|
|
|
|
config_get_bool enabled "$1" enabled 1
|
|
[ "$enabled" -eq 1 ] || return 0
|
|
|
|
config_get ipaddr "$1" ipaddr
|
|
[ -z "$ipaddr" ] && return 0
|
|
config_get port "$1" port
|
|
[ -z "$port" ] && return 0
|
|
|
|
config_section_open "virtual_server" "$ipaddr $port"
|
|
|
|
print_elems_indent "$1" "$INDENT_1" fwmark delay_loop \
|
|
lb_kind persistence_timeout persistence_granularity \
|
|
virtualhost protocol
|
|
|
|
config_get lb_algo "$1" lb_algo
|
|
[ -z "$lb_algo" ] && lb_algo="rr"
|
|
modprobe ip_vs_${lb_algo} 1>/dev/null 2>&1
|
|
printf '%blb_algo %s\n' "${INDENT_1}" "${lb_algo}" >> "$KEEPALIVED_CONF"
|
|
|
|
config_get sorry_server_ip "$1" sorry_server_ip
|
|
config_get sorry_server_port "$1" sorry_server_port
|
|
[ -n "$sorry_server_ip" ] && [ -n "$sorry_server_port" ] && {
|
|
printf '%bsorry_server %s %s\n' "${INDENT_1}" "$sorry_server_ip" "$sorry_server_port" >> "$KEEPALIVED_CONF"
|
|
}
|
|
|
|
# Handle real_server list
|
|
config_list_foreach "$1" real_server real_server_list
|
|
|
|
config_section_close
|
|
}
|
|
|
|
process_config() {
|
|
local alt_config_file linkbeat_use_polling
|
|
|
|
rm -f "$KEEPALIVED_CONF"
|
|
|
|
# First line
|
|
printf '! Configuration file for keepalived (autogenerated via init script)\n' > "$KEEPALIVED_CONF"
|
|
printf '! Written %s\n\n' "$(date +'%c')" >> "$KEEPALIVED_CONF"
|
|
|
|
[ -f /etc/config/keepalived ] || return 0
|
|
config_load 'keepalived'
|
|
config_get alt_config_file globals alt_config_file
|
|
|
|
# If "alt_config_file" specified, use that instead
|
|
[ -n "$alt_config_file" ] && [ -f "$alt_config_file" ] && {
|
|
rm -f "$KEEPALIVED_CONF"
|
|
# Symlink "alt_config_file" since it's a bit easier and safer
|
|
ln -s "$alt_config_file" "$KEEPALIVED_CONF"
|
|
return 0
|
|
}
|
|
|
|
config_get_bool linkbeat_use_polling globals linkbeat_use_polling 0
|
|
[ "$linkbeat_use_polling" -gt 0 ] && printf 'linkbeat_use_polling\n\n' >> "$KEEPALIVED_CONF"
|
|
|
|
config_section_open "global_defs"
|
|
config_foreach_wrapper globals
|
|
config_section_close
|
|
|
|
config_section_open "static_ipaddress"
|
|
config_foreach_wrapper static_ipaddress
|
|
config_section_close
|
|
|
|
config_section_open "static_routes"
|
|
config_foreach_wrapper static_routes
|
|
config_section_close
|
|
|
|
config_foreach_wrapper vrrp_script
|
|
config_foreach_wrapper vrrp_sync_group
|
|
config_foreach_wrapper vrrp_instance
|
|
config_foreach_wrapper virtual_server
|
|
return 0
|
|
}
|
|
|
|
service_triggers() {
|
|
procd_add_reload_trigger "keepalived"
|
|
}
|
|
|
|
reload_service() {
|
|
process_config
|
|
#SIGHUP is used by keepalived to do init.d reload
|
|
procd_send_signal keepalived
|
|
}
|
|
|
|
start_service() {
|
|
procd_open_instance
|
|
procd_set_param command /usr/sbin/keepalived
|
|
procd_append_param command -n # don't daemonize, procd will handle that for us
|
|
procd_append_param command -f "$KEEPALIVED_CONF"
|
|
|
|
process_config
|
|
|
|
# set auto respawn behavior
|
|
procd_set_param respawn
|
|
procd_close_instance
|
|
}
|
|
|