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444 lines
8.2 KiB
Bash
444 lines
8.2 KiB
Bash
4 years ago
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# procd API:
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#
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# procd_open_service(name, [script]):
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# Initialize a new procd command message containing a service with one or more instances
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#
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# procd_close_service()
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# Send the command message for the service
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#
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# procd_open_instance([name]):
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# Add an instance to the service described by the previous procd_open_service call
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#
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# procd_set_param(type, [value...])
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# Available types:
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# command: command line (array).
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# respawn info: array with 3 values $fail_threshold $restart_timeout $max_fail
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# env: environment variable (passed to the process)
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# data: arbitrary name/value pairs for detecting config changes (table)
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# file: configuration files (array)
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# netdev: bound network device (detects ifindex changes)
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# limits: resource limits (passed to the process)
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# user info: array with 1 values $username
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#
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# No space separation is done for arrays/tables - use one function argument per command line argument
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#
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# procd_close_instance():
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# Complete the instance being prepared
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#
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# procd_kill(service, [instance]):
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# Kill a service instance (or all instances)
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#
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. $IPKG_INSTROOT/usr/share/libubox/jshn.sh
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_PROCD_SERVICE=
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_procd_call() {
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local old_cb
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json_set_namespace procd old_cb
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"$@"
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json_set_namespace $old_cb
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}
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_procd_wrapper() {
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while [ -n "$1" ]; do
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eval "$1() { _procd_call _$1 \"\$@\"; }"
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shift
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done
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}
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_procd_ubus_call() {
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local cmd="$1"
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[ -n "$PROCD_DEBUG" ] && json_dump >&2
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ubus call service "$cmd" "$(json_dump)"
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json_cleanup
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}
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_procd_open_service() {
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local name="$1"
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local script="$2"
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_PROCD_SERVICE="$name"
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_PROCD_INSTANCE_SEQ=0
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json_init
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json_add_string name "$name"
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[ -n "$script" ] && json_add_string script "$script"
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json_add_object instances
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}
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_procd_close_service() {
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json_close_object
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service_triggers
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_procd_ubus_call set
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}
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_procd_add_array_data() {
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while [ "$#" -gt 0 ]; do
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json_add_string "" "$1"
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shift
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done
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}
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_procd_add_array() {
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json_add_array "$1"
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shift
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_procd_add_array_data "$@"
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json_close_array
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}
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_procd_add_table_data() {
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while [ -n "$1" ]; do
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local var="${1%%=*}"
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local val="${1#*=}"
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[ "$1" = "$val" ] && val=
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json_add_string "$var" "$val"
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shift
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done
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}
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_procd_add_table() {
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json_add_object "$1"
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shift
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_procd_add_table_data "$@"
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json_close_object
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}
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_procd_open_instance() {
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local name="$1"; shift
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_PROCD_INSTANCE_SEQ="$(($_PROCD_INSTANCE_SEQ + 1))"
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name="${name:-instance$_PROCD_INSTANCE_SEQ}"
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json_add_object "$name"
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[ -n "$TRACE_SYSCALLS" ] && json_add_boolean trace "1"
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}
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_procd_open_trigger() {
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json_add_array "triggers"
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}
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_procd_open_validate() {
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json_add_array "validate"
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}
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_procd_add_jail() {
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json_add_object "jail"
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json_add_string name "$1"
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json_add_string root "/tmp/.jail/$1"
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shift
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for a in $@; do
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case $a in
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log) json_add_boolean "log" "1";;
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ubus) json_add_boolean "ubus" "1";;
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procfs) json_add_boolean "procfs" "1";;
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sysfs) json_add_boolean "sysfs" "1";;
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esac
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done
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json_add_object "mount"
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json_close_object
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json_close_object
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}
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_procd_add_jail_mount() {
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local _json_no_warning=1
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json_select "jail"
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[ $? = 0 ] || return
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json_select "mount"
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[ $? = 0 ] || {
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json_select ..
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return
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}
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for a in $@; do
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json_add_string "$a" "0"
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done
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json_select ..
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json_select ..
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}
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_procd_add_jail_mount_rw() {
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local _json_no_warning=1
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json_select "jail"
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[ $? = 0 ] || return
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json_select "mount"
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[ $? = 0 ] || {
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json_select ..
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return
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}
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for a in $@; do
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json_add_string "$a" "1"
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done
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json_select ..
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json_select ..
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}
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_procd_set_param() {
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local type="$1"; shift
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case "$type" in
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env|data|limits)
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_procd_add_table "$type" "$@"
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;;
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command|netdev|file|respawn|watch)
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_procd_add_array "$type" "$@"
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;;
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error)
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json_add_array "$type"
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json_add_string "" "$@"
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json_close_array
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;;
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nice)
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json_add_int "$type" "$1"
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;;
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user|seccomp)
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json_add_string "$type" "$1"
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;;
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stdout|stderr)
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json_add_boolean "$type" "$1"
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;;
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esac
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}
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_procd_add_interface_trigger() {
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json_add_array
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_procd_add_array_data "$1"
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shift
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json_add_array
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_procd_add_array_data "if"
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json_add_array
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_procd_add_array_data "eq" "interface" "$1"
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shift
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json_close_array
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json_add_array
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_procd_add_array_data "run_script" "$@"
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json_close_array
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json_close_array
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json_close_array
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}
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_procd_add_reload_interface_trigger() {
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local script=$(readlink "$initscript")
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local name=$(basename ${script:-$initscript})
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_procd_open_trigger
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_procd_add_interface_trigger "interface.*" $1 /etc/init.d/$name reload
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_procd_close_trigger
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}
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_procd_add_config_trigger() {
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json_add_array
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_procd_add_array_data "$1"
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shift
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json_add_array
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_procd_add_array_data "if"
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json_add_array
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_procd_add_array_data "eq" "package" "$1"
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shift
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json_close_array
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json_add_array
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_procd_add_array_data "run_script" "$@"
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json_close_array
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json_close_array
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json_close_array
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}
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_procd_add_raw_trigger() {
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json_add_array
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_procd_add_array_data "$1"
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shift
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local timeout=$1
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shift
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json_add_array
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json_add_array
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_procd_add_array_data "run_script" "$@"
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json_close_array
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json_close_array
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json_add_int "" "$timeout"
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json_close_array
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}
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_procd_add_reload_trigger() {
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local script=$(readlink "$initscript")
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local name=$(basename ${script:-$initscript})
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local file
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_procd_open_trigger
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for file in "$@"; do
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_procd_add_config_trigger "config.change" "$file" /etc/init.d/$name reload
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done
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_procd_close_trigger
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}
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_procd_add_reload_trigger_with_argument() {
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local script=$(readlink "$initscript")
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local name=$(basename ${script:-$initscript})
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local file
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_procd_open_trigger
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for file in "$@"; do
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_procd_add_config_trigger "config.change" "$file" /etc/init.d/$name reload "$file"
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done
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_procd_close_trigger
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}
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_procd_add_validation() {
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_procd_open_validate
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$@
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_procd_close_validate
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}
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_procd_append_param() {
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local type="$1"; shift
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local _json_no_warning=1
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json_select "$type"
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[ $? = 0 ] || {
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_procd_set_param "$type" "$@"
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return
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}
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case "$type" in
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env|data|limits)
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_procd_add_table_data "$@"
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;;
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command|netdev|file|respawn|watch)
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_procd_add_array_data "$@"
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;;
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error)
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json_add_string "" "$@"
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;;
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esac
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json_select ..
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}
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_procd_close_instance() {
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json_close_object
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}
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_procd_close_trigger() {
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json_close_array
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}
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_procd_close_validate() {
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json_close_array
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}
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_procd_add_instance() {
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_procd_open_instance
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_procd_set_param command "$@"
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_procd_close_instance
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}
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_procd_kill() {
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local service="$1"
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local instance="$2"
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json_init
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[ -n "$service" ] && json_add_string name "$service"
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[ -n "$instance" ] && json_add_string instance "$instance"
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_procd_ubus_call delete
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}
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procd_open_data() {
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local name="$1"
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json_set_namespace procd __procd_old_cb
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json_add_object data
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}
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procd_close_data() {
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json_close_object
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json_set_namespace $__procd_old_cb
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}
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_procd_set_config_changed() {
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local package="$1"
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json_init
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json_add_string type config.change
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json_add_object data
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json_add_string package "$package"
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json_close_object
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ubus call service event "$(json_dump)"
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}
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procd_add_mdns_service() {
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local service proto port
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service=$1; shift
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proto=$1; shift
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port=$1; shift
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json_add_object "${service}_$port"
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json_add_string "service" "_$service._$proto.local"
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json_add_int port "$port"
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[ -n "$1" ] && {
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json_add_array txt
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for txt in $@; do json_add_string "" $txt; done
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json_select ..
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}
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json_select ..
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}
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procd_add_mdns() {
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procd_open_data
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json_add_object "mdns"
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procd_add_mdns_service $@
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json_close_object
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procd_close_data
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}
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uci_validate_section()
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{
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local _package="$1"
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local _type="$2"
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local _name="$3"
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local _result
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local _error
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shift; shift; shift
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_result=`/sbin/validate_data "$_package" "$_type" "$_name" "$@" 2> /dev/null`
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_error=$?
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eval "$_result"
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|
|
[ "$_error" = "0" ] || `/sbin/validate_data "$_package" "$_type" "$_name" "$@" 1> /dev/null`
|
||
|
|
return $_error
|
||
|
|
}
|
||
|
|
|
||
|
|
_procd_wrapper \
|
||
|
|
procd_open_service \
|
||
|
|
procd_close_service \
|
||
|
|
procd_add_instance \
|
||
|
|
procd_add_raw_trigger \
|
||
|
|
procd_add_config_trigger \
|
||
|
|
procd_add_interface_trigger \
|
||
|
|
procd_add_reload_trigger \
|
||
|
|
procd_add_reload_trigger_with_argument \
|
||
|
|
procd_add_reload_interface_trigger \
|
||
|
|
procd_open_trigger \
|
||
|
|
procd_close_trigger \
|
||
|
|
procd_open_instance \
|
||
|
|
procd_close_instance \
|
||
|
|
procd_open_validate \
|
||
|
|
procd_close_validate \
|
||
|
|
procd_add_jail \
|
||
|
|
procd_add_jail_mount \
|
||
|
|
procd_add_jail_mount_rw \
|
||
|
|
procd_set_param \
|
||
|
|
procd_append_param \
|
||
|
|
procd_add_validation \
|
||
|
|
procd_set_config_changed \
|
||
|
|
procd_kill
|