asterisk-16.x: update init and configuration

This commit changes handling of configuration and init a bit:

1. Asterisk configuration files are installed with $(INSTALL_DATA). This
   way there is no need to chown /etc/asterisk to user asterisk. The
   package provides the standard asterisk configuration (no secrets) so
   it's OK to install it readable for all. If users put something
   sensitive in there they can update permissions how they like.
2. The init script no longer creates directories that the users can
   configure in /etc/config/asterisk, which could be all kinds of
   strange directories. Instead only the default directories are
   created, and only the ones that reside on volatile memory. The other
   directories are now created by the package itself.
3. This commit removes the ability to choose a user/group via
   /etc/config/asterisk. This makes the init script simpler. If anybody
   wants to play around with the user/group, then it's up to them to fix
   the permissions.
4. "local" is removed because it's not POSIX.
5. From issue #520 we know that adding the user to the dialout group
   does not help with the device permissions for chan_lantiq. This
   removes it again.

Signed-off-by: Sebastian Kemper <sebastian_ml@gmx.net>

net/asterisk-16.x/Makefile

@@ -334,7 +334,7 @@ endef
 
 define Package/$(PKG_NAME)/install/conffile
 	$(INSTALL_DIR) $(1)/etc/asterisk
-	$(INSTALL_CONF) $(PKG_INSTALL_DIR)/etc/asterisk/$(2) $(1)/etc/asterisk/
+	$(INSTALL_DATA) $(PKG_INSTALL_DIR)/etc/asterisk/$(2) $(1)/etc/asterisk/
 endef
 
 define Package/$(PKG_NAME)/install/lib
@@ -354,7 +354,7 @@ endef
 
 define Package/$(PKG_NAME)/install/util-conffile
 	$(INSTALL_DIR) $(1)/etc
-	$(INSTALL_CONF) $(PKG_INSTALL_DIR)/etc/asterisk/$(2) $(1)/etc
+	$(INSTALL_DATA) $(PKG_INSTALL_DIR)/etc/asterisk/$(2) $(1)/etc
 endef
 
 define Package/$(PKG_NAME)/config
@@ -498,7 +498,9 @@ $(foreach m,$(AST_CFG_FILES),$(call Package/$(PKG_NAME)/install/conffile,$(1),$(
 $(foreach m,$(AST_EMB_MODULES),$(call Package/$(PKG_NAME)/install/module,$(1),$(m));)
 	$(INSTALL_DIR) $(1)/etc/config
 	$(INSTALL_DIR) $(1)/etc/init.d
+	$(INSTALL_DIR) $(1)/usr/share/asterisk/agi-bin
 	$(INSTALL_DIR) $(1)/usr/share/asterisk/firmware/iax
+	$(INSTALL_DIR) $(1)/usr/share/asterisk/keys
 	$(INSTALL_DIR) $(1)/usr/share/asterisk/sounds
 	$(INSTALL_BIN) ./files/asterisk.init $(1)/etc/init.d/asterisk
 	$(INSTALL_CONF) ./files/asterisk.conf $(1)/etc/config/asterisk

net/asterisk-16.x/files/asterisk.conf

@@ -1,26 +1,16 @@
+# The init script will create below default directories automatically.
+# In case you change these paths in your Asterisk configuration, make
+# sure that your directories exist and have the appropriate permissions
+# (Asterisk will use the user "asterisk", not root).
+
+# dbdir     => '/var/lib/asterisk/astdb'
+# logdir    => '/var/log/asterisk'
+# rundir    => '/var/run/asterisk'
+# spooldir  => '/var/spool/asterisk'
+# varlibdir => '/var/lib/asterisk'
 
 config asterisk 'general'
 	option enabled '0'
-	# If you have problems running Asterisk as user "asterisk" we'd
-	# like to hear from you. Please raise an issue at:
-	# https://github.com/openwrt/telephony/issues
-	option user 'asterisk'
-	option group 'asterisk'
 	option log_stderr '1'
 	option log_stdout '1'
 	option options ''
-
-config asterisk 'directories'
-	# The init script will only create below directories and update
-	# their permissions if they don't exist.
-	# Note: To change the default paths you need to update your
-	# "asterisk.conf" file.
-	option agidir '/usr/share/asterisk/agi-bin'
-	option datadir '/usr/share/asterisk'
-	option dbdir '/var/lib/asterisk/astdb'
-	option keydir '/usr/share/asterisk/keys'
-	option logdir '/var/log/asterisk'
-	option rundir '/var/run/asterisk'
-	option spooldir '/var/spool/asterisk'
-	option varlibdir '/var/lib/asterisk'
-

net/asterisk-16.x/files/asterisk.init

@@ -13,25 +13,13 @@ COMMAND=/usr/sbin/$NAME
 LOGGER="/usr/bin/logger -p user.err -s -t $NAME --"
 
 start_service() {
-  local enabled
 
-  local user
+  dbdir=/var/lib/asterisk/astdb
-  local group
+  logdir=/var/log/asterisk
-
+  cdrcsvdir=$logdir/cdr-csv
-  local log_stderr
+  rundir=/var/run/asterisk
-  local log_stdout
+  spooldir=/var/spool/asterisk
-
+  varlibdir=/var/lib/asterisk
-  local agidir
-  local cdrcsvdir
-  local datadir
-  local dbdir
-  local keydir
-  local logdir
-  local rundir
-  local spooldir
-  local varlibdir
-
-  local options
 
   config_load $NAME
 
@@ -41,85 +29,30 @@ start_service() {
     exit 1
   fi
 
-  config_get user  general user  $NAME
-  config_get group general group $NAME
-
-  user_exists "$user" || {
-    $LOGGER user \""$user"\" does not exist
-    exit 1
-  }
-  group_exists "$group" || {
-    $LOGGER group \""$group"\" does not exist
-    exit 1
-  }
-
-  if [ "$user" = $NAME ]; then
-    if ! id -nG $NAME | grep -qwF dialout; then
-      group_exists dialout && group_add_user dialout $NAME
-    fi
-  fi
-
   config_get_bool log_stderr general log_stderr 1
   config_get_bool log_stdout general log_stdout 1
 
-  config_get agidir    directories agidir    /usr/share/$NAME/agi-bin
-  config_get datadir   directories datadir   /usr/share/$NAME
-  config_get dbdir     directories dbdir     /var/lib/$NAME/astdb
-  config_get keydir    directories keydir    /usr/share/$NAME/keys
-  config_get logdir    directories logdir    /var/log/$NAME
-  config_get rundir    directories rundir    /var/run/$NAME
-  config_get spooldir  directories spooldir  /var/spool/$NAME
-  config_get varlibdir directories varlibdir /var/lib/$NAME
-
   config_get options general options
 
-  cdrcsvdir="${logdir}/cdr-csv"
+  for i in \
-
+    "$logdir" \
-  # do not touch directories that already exist
+    "$cdrcsvdir" \
-  # posix shell does not support arrays, hence using awk
+    "$rundir" \
-  awk \
+    "$spooldir" \
-    -v user="$user" \
+    "$varlibdir" \
-    -v group="$group" \
+    "$dbdir"
-    -v a="$agidir" \
+  do
-    -v b="$cdrcsvdir" \
+    if ! [ -e "$i" ]; then
-    -v c="$datadir" \
+      mkdir -m 0750 -p "$i"
-    -v d="$dbdir" \
+      [ -d "$i" ] && chown $NAME:$NAME "$i"
-    -v e="$keydir" \
+    fi
-    -v f="$logdir" \
+  done
-    -v g="$rundir" \
-    -v h="$spooldir" \
-    -v i="$varlibdir" \
-    '
-      BEGIN {
-        dir[0]=a
-        dir[1]=b
-        dir[2]=c
-        dir[3]=d
-        dir[4]=e
-        dir[5]=f
-        dir[6]=g
-        dir[7]=h
-        dir[8]=i
-        for (x in dir) {
-          if (system("test ! -e \"" dir[x] "\"" )) {
-            delete dir[x]
-          }
-        }
-        for (x in dir) {
-          system("mkdir -p \"" dir[x] "\"" )
-          system("chmod 750 \"" dir[x] "\"" )
-          system("chown \"" user "\":\"" group "\" \"" dir[x] "\"" )
-        }
-      }
-    '
-
-  chown -R "$user":"$group" /etc/$NAME
 
   procd_open_instance
   procd_set_param command $COMMAND
   procd_append_param command \
-    -G "$group" \
+    -G "$NAME" \
-    -U "$user" \
+    -U "$NAME" \
     $options \
     -f
   # forward stderr to logd
@@ -127,5 +60,5 @@ start_service() {
   # same for stdout
   procd_set_param stdout $log_stdout
   procd_close_instance
-}
 
+}