rtty: Add package

A reverse proxy WebTTY. It is composed of the client and the server.

Signed-off-by: Jianhui Zhao <jianhuizhao329@gmail.com>

utils/rtty/files/rtty.config

@@ -0,0 +1,12 @@
+# You must specify an interface or id,
+# If the id is not specified, RTTY will uses the MAC address
+# of the interface you specify as its ID, otherwise the id
+# you specify is used as its ID
+
+#config rtty
+#   option  interface   'lan'
+#   option  id          'My-Device'
+#   option  description 'Description of my device'
+#   option  host        'your-server-host'  # Server host
+#   option  port        '5912'              # Server Port
+#   option  ssl         1                   # Whether to use ssl

utils/rtty/files/rtty.init

@@ -0,0 +1,58 @@
+#!/bin/sh /etc/rc.common
+
+. /lib/functions/network.sh
+
+USE_PROCD=1
+START=99
+
+BIN=/usr/sbin/rtty
+
+start_rtty() {
+    local cfg="$1"
+    local interface ifname id description host port ssl
+
+    uci_validate_section rtty rtty "${1}" \
+        'interface:uci("network", "@interface"):lan' \
+        'id:maxlength(63)' \
+        'description:maxlength(126)' \
+        'host:host' \
+        'port:port' \
+        'ssl:bool:0'
+    
+    [ $? -eq 1 ] && {
+        echo "validation failed" >&2
+        return 1
+    }
+
+    [ -n "$interface" ] && network_get_device ifname "$interface"
+
+    [ -z "$ifname" -a -z "$id" ] && {
+        echo "You must specify an interface or ID" >&2
+        return 1
+    }
+
+    [ -z "$host" ] && {
+        echo "host required" >&2
+        return 1
+    }
+    
+    [ -z "$port" ] && {
+        echo "port required" >&2
+        return 1
+    }
+
+    procd_open_instance
+    procd_set_param command $BIN -h $host -p $port -a
+    [ -n "$ifname" ] && procd_append_param command -i "$ifname"
+    [ -n "$id" ] && procd_append_param command -I "$id"
+    [ -n "$description" ] && procd_append_param command -d "$description"
+    [ "$ssl" = "1" ] && procd_append_param command -s
+    procd_set_param respawn
+    procd_close_instance
+}
+
+start_service() {
+    config_load rtty
+    config_foreach start_rtty rtty
+}
+