trunk-47381HEADmaster

1 files changed, 430 insertions, 0 deletions

diff --git a/package/system/procd/files/procd.sh b/package/system/procd/files/procd.sh
new file mode 100644
index 0000000..e83e75c
--- /dev/null
+++ b/package/system/procd/files/procd.sh
@@ -0,0 +1,430 @@
+# procd API:
+#
+# procd_open_service(name, [script]):
+#   Initialize a new procd command message containing a service with one or more instances
+#
+# procd_close_service()
+#   Send the command message for the service
+#
+# procd_open_instance([name]):
+#   Add an instance to the service described by the previous procd_open_service call
+#
+# procd_set_param(type, [value...])
+#   Available types:
+#     command: command line (array).
+#     respawn info: array with 3 values $fail_threshold $restart_timeout $max_fail
+#     env: environment variable (passed to the process)
+#     data: arbitrary name/value pairs for detecting config changes (table)
+#     file: configuration files (array)
+#     netdev: bound network device (detects ifindex changes)
+#     limits: resource limits (passed to the process)
+#     user info: array with 1 values $username
+#
+#   No space separation is done for arrays/tables - use one function argument per command line argument
+#
+# procd_close_instance():
+#   Complete the instance being prepared
+#
+# procd_kill(service, [instance]):
+#   Kill a service instance (or all instances)
+#
+
+. $IPKG_INSTROOT/usr/share/libubox/jshn.sh
+
+_PROCD_SERVICE=
+
+_procd_call() {
+	local old_cb
+
+	json_set_namespace procd old_cb
+	"$@"
+	json_set_namespace $old_cb
+}
+
+_procd_wrapper() {
+	while [ -n "$1" ]; do
+		eval "$1() { _procd_call _$1 \"\$@\"; }"
+		shift
+	done
+}
+
+_procd_ubus_call() {
+	local cmd="$1"
+
+	[ -n "$PROCD_DEBUG" ] && json_dump >&2
+	ubus call service "$cmd" "$(json_dump)"
+	json_cleanup
+}
+
+_procd_open_service() {
+	local name="$1"
+	local script="$2"
+
+	_PROCD_SERVICE="$name"
+	_PROCD_INSTANCE_SEQ=0
+
+	json_init
+	json_add_string name "$name"
+	[ -n "$script" ] && json_add_string script "$script"
+	json_add_object instances
+}
+
+_procd_close_service() {
+	json_close_object
+	service_triggers
+	_procd_ubus_call set
+}
+
+_procd_add_array_data() {
+	while [ "$#" -gt 0 ]; do
+		json_add_string "" "$1"
+		shift
+	done
+}
+
+_procd_add_array() {
+	json_add_array "$1"
+	shift
+	_procd_add_array_data "$@"
+	json_close_array
+}
+
+_procd_add_table_data() {
+	while [ -n "$1" ]; do
+		local var="${1%%=*}"
+		local val="${1#*=}"
+		[ "$1" = "$val" ] && val=
+		json_add_string "$var" "$val"
+		shift
+	done
+}
+
+_procd_add_table() {
+	json_add_object "$1"
+	shift
+	_procd_add_table_data "$@"
+	json_close_object
+}
+
+_procd_open_instance() {
+	local name="$1"; shift
+
+	_PROCD_INSTANCE_SEQ="$(($_PROCD_INSTANCE_SEQ + 1))"
+	name="${name:-instance$_PROCD_INSTANCE_SEQ}"
+	json_add_object "$name"
+	[ -n "$TRACE_SYSCALLS" ] && json_add_boolean trace "1"
+}
+
+_procd_open_trigger() {
+	json_add_array "triggers"
+}
+
+_procd_open_validate() {
+	json_add_array "validate"
+}
+
+_procd_add_jail() {
+	json_add_object "jail"
+	json_add_string name "$1"
+	json_add_string root "/tmp/.jail/$1"
+
+	shift
+	
+	for a in $@; do
+		case $a in
+		log)	json_add_boolean "log" "1";;
+		ubus)	json_add_boolean "ubus" "1";;
+		procfs)	json_add_boolean "procfs" "1";;
+		sysfs)	json_add_boolean "sysfs" "1";;
+		esac
+	done
+	json_add_object "mount"
+	json_close_object
+	json_close_object
+}
+
+_procd_add_jail_mount() {
+	local _json_no_warning=1
+
+	json_select "jail"
+	[ $? = 0 ] || return
+	json_select "mount"
+	[ $? = 0 ] || {
+		json_select ..
+		return
+	}
+	for a in $@; do
+		json_add_string "$a" "0"
+	done
+	json_select ..
+	json_select ..
+}
+
+_procd_add_jail_mount_rw() {
+	local _json_no_warning=1
+
+	json_select "jail"
+	[ $? = 0 ] || return
+	json_select "mount"
+	[ $? = 0 ] || {
+		json_select ..
+		return
+	}
+	for a in $@; do
+		json_add_string "$a" "1"
+	done
+	json_select ..
+	json_select ..
+}
+
+_procd_set_param() {
+	local type="$1"; shift
+
+	case "$type" in
+		env|data|limits)
+			_procd_add_table "$type" "$@"
+		;;
+		command|netdev|file|respawn|watch)
+			_procd_add_array "$type" "$@"
+		;;
+		error)
+			json_add_array "$type"
+			json_add_string "" "$@"
+			json_close_array
+		;;
+		nice)
+			json_add_int "$type" "$1"
+		;;
+		user|seccomp)
+			json_add_string "$type" "$1"
+		;;
+		stdout|stderr)
+			json_add_boolean "$type" "$1"
+		;;
+	esac
+}
+
+_procd_add_interface_trigger() {
+	json_add_array
+	_procd_add_array_data "$1"
+	shift
+
+	json_add_array
+	_procd_add_array_data "if"
+
+	json_add_array
+	_procd_add_array_data "eq" "interface" "$1"
+	shift
+	json_close_array
+
+	json_add_array
+	_procd_add_array_data "run_script" "$@"
+	json_close_array
+
+	json_close_array
+	json_close_array
+}
+
+_procd_add_reload_interface_trigger() {
+	local script=$(readlink "$initscript")
+	local name=$(basename ${script:-$initscript})
+
+	_procd_open_trigger
+	_procd_add_interface_trigger "interface.*" $1 /etc/init.d/$name reload
+	_procd_close_trigger
+}
+
+_procd_add_config_trigger() {
+	json_add_array
+	_procd_add_array_data "$1"
+	shift
+
+	json_add_array
+	_procd_add_array_data "if"
+
+	json_add_array
+	_procd_add_array_data "eq" "package" "$1"
+	shift
+	json_close_array
+
+	json_add_array
+	_procd_add_array_data "run_script" "$@"
+	json_close_array
+
+	json_close_array
+
+	json_close_array
+}
+
+_procd_add_raw_trigger() {
+	json_add_array
+	_procd_add_array_data "$1"
+	shift
+	local timeout=$1
+	shift
+
+	json_add_array
+	json_add_array
+	_procd_add_array_data "run_script" "$@"
+	json_close_array
+	json_close_array
+
+	json_add_int "" "$timeout"
+
+	json_close_array
+}
+
+_procd_add_reload_trigger() {
+	local script=$(readlink "$initscript")
+	local name=$(basename ${script:-$initscript})
+	local file
+
+	_procd_open_trigger
+	for file in "$@"; do
+		_procd_add_config_trigger "config.change" "$file" /etc/init.d/$name reload
+	done
+	_procd_close_trigger
+}
+
+_procd_add_validation() {
+	_procd_open_validate
+	$@
+	_procd_close_validate
+}
+
+_procd_append_param() {
+	local type="$1"; shift
+	local _json_no_warning=1
+
+	json_select "$type"
+	[ $? = 0 ] || {
+		_procd_set_param "$type" "$@"
+		return
+	}
+	case "$type" in
+		env|data|limits)
+			_procd_add_table_data "$@"
+		;;
+		command|netdev|file|respawn|watch)
+			_procd_add_array_data "$@"
+		;;
+		error)
+			json_add_string "" "$@"
+		;;
+	esac
+	json_select ..
+}
+
+_procd_close_instance() {
+	json_close_object
+}
+
+_procd_close_trigger() {
+	json_close_array
+}
+
+_procd_close_validate() {
+	json_close_array
+}
+
+_procd_add_instance() {
+	_procd_open_instance
+	_procd_set_param command "$@"
+	_procd_close_instance
+}
+
+_procd_kill() {
+	local service="$1"
+	local instance="$2"
+
+	json_init
+	[ -n "$service" ] && json_add_string name "$service"
+	[ -n "$instance" ] && json_add_string instance "$instance"
+	_procd_ubus_call delete
+}
+
+procd_open_data() {
+	local name="$1"
+	json_set_namespace procd __procd_old_cb
+	json_add_object data
+}
+
+procd_close_data() {
+	json_close_object
+	json_set_namespace $__procd_old_cb
+}
+
+_procd_set_config_changed() {
+	local package="$1"
+
+	json_init
+	json_add_string type config.change
+	json_add_object data
+	json_add_string package "$package"
+	json_close_object
+
+	ubus call service event "$(json_dump)"
+}
+
+procd_add_mdns_service() {
+	local service proto port
+	service=$1; shift
+	proto=$1; shift
+	port=$1; shift
+	json_add_object "${service}_$port"
+	json_add_string "service" "_$service._$proto.local"
+	json_add_int port "$port"
+	[ -n "$1" ] && {
+		json_add_array txt
+		for txt in $@; do json_add_string "" $txt; done
+		json_select ..
+	}
+	json_select ..
+}
+
+procd_add_mdns() {
+	procd_open_data
+	json_add_object "mdns"
+	procd_add_mdns_service $@
+	json_close_object
+	procd_close_data
+}
+
+uci_validate_section()
+{
+	local _package="$1"
+	local _type="$2"
+	local _name="$3"
+	local _result
+	local _error
+	shift; shift; shift
+	_result=`/sbin/validate_data "$_package" "$_type" "$_name" "$@" 2> /dev/null`
+	_error=$?
+	eval "$_result"
+	[ "$_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_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