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procd: update to git HEAD and add new script helpers 

e10de28 jail: cgroups-bpf: fix compile with musl 1.2
 f5d9b14 hotplug-dispatch: fix rare memory leaks in error paths

Add new init script helpers:
 procd_add_start_mount_trigger
 procd_add_reload_mount_trigger
 procd_get_mountpoints

Both trigger helpers expect a list of paths which are checked against
the mount targets configured in /etc/config/fstab and a trigger for all
mountpoints covered by the list of paths is setup.

procd_get_mountpoints is useful to find out if and which mountpoints
are covered by a list of paths.

Example:
  DATADIRS="/mnt/data/foo /mnt/data/bar /etc/foo/baz /var/lib/doe"

  start_service() {
    [ "$_BOOT" = "1" ] &&
      [ "$(procd_get_mountpoints $DATADIRS)" ] && return 0

    procd_open_instance
    # ...
    procd_close_instance
  }

  boot() {
    _BOOT=1 start
  }

  service_triggers() {
    procd_add_start_mount_trigger $DATADIRS
  }

Signed-off-by: Daniel Golle <daniel@makrotopia.org>
This commit is contained in:
Daniel Golle 2021-08-05 02:56:17 +01:00
parent aa21110e44
commit 46a65f927c
No known key found for this signature in database
GPG Key ID: 5A8F39C31C3217CA
2 changed files with 78 additions and 3 deletions
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6
package/system/procd/Makefile
View File

@ -12,9 +12,9 @@ PKG_RELEASE:=$(AUTORELEASE)
PKG_SOURCE_PROTO:=git
PKG_SOURCE_URL=$(PROJECT_GIT)/project/procd.git
PKG_SOURCE_DATE:=2021-08-04
PKG_SOURCE_VERSION:=516bdf26d4f60dc5fb063da8715fed2bad24dbd0
PKG_MIRROR_HASH:=670ee1cec775b75c542a5583b59e8b9dc21b22c42d7e3556426caf11eed52b33
PKG_SOURCE_DATE:=2021-08-05
PKG_SOURCE_VERSION:=f5d9b14fea85e3272cac5200fb32a5c99ba7fdff
PKG_MIRROR_HASH:=0be2b84480d63a431721bf01ca95f927717f11c6cecccd1fc7c0e7ea6f2d4e51
CMAKE_INSTALL:=1
PKG_LICENSE:=GPL-2.0

75
package/system/procd/files/procd.sh
View File

@ -329,6 +329,78 @@ _procd_add_config_trigger() {
json_close_array
}
_procd_add_mount_trigger() {
json_add_array
_procd_add_array_data "$1"
local action="$2"
local multi=0
shift ; shift
json_add_array
_procd_add_array_data "if"
if [ "$2" ]; then
json_add_array
_procd_add_array_data "or"
multi=1
fi
while [ "$1" ]; do
json_add_array
_procd_add_array_data "eq" "target" "$1"
shift
json_close_array
done
[ $multi = 1 ] && json_close_array
json_add_array
_procd_add_array_data "run_script" /etc/init.d/$name $action
json_close_array
json_close_array
_procd_add_timeout
json_close_array
}
_procd_add_action_mount_trigger() {
local script=$(readlink "$initscript")
local name=$(basename ${script:-$initscript})
local action="$1"
local mpath
shift
_procd_open_trigger
_procd_add_mount_trigger mount.add $action "$@"
_procd_close_trigger
}
procd_get_mountpoints() {
(
__procd_check_mount() {
local cfg="$1"
local path="${2%%/}/"
local target
config_get target "$cfg" target
target="${target%%/}/"
[ "$path" != "${path##$target}" ] && echo "${target%%/}"
}
config_load fstab
for mpath in "$@"; do
config_foreach __procd_check_mount mount "$mpath"
done
) | sort -u
}
_procd_add_start_mount_trigger() {
_procd_add_action_mount_trigger start $(procd_get_mountpoints "$@")
}
_procd_add_reload_mount_trigger() {
_procd_add_action_mount_trigger reload $(procd_get_mountpoints "$@")
}
_procd_add_raw_trigger() {
json_add_array
_procd_add_array_data "$1"
@ -560,8 +632,11 @@ _procd_wrapper \
procd_add_raw_trigger \
procd_add_config_trigger \
procd_add_interface_trigger \
procd_add_mount_trigger \
procd_add_reload_trigger \
procd_add_reload_interface_trigger \
procd_add_reload_mount_trigger \
procd_add_start_mount_trigger \
procd_open_trigger \
procd_close_trigger \
procd_open_instance \