net/shadowsocks-libev/files/shadowsocks-libev.init

   1 #!/bin/sh /etc/rc.common
   2 #
   3 # Copyright (C) 2017 Yousong Zhou <yszhou4tech@gmail.com>
   4 #
   5 # This is free software, licensed under the GNU General Public License v3.
   6 # See /LICENSE for more information.
   7 #
   8
   9 USE_PROCD=1
  10 START=99
  11
  12 ss_confdir=/var/etc/shadowsocks-libev
  13 ss_bindir=/usr/bin
  14 q='"'
  15
  16 ss_mkjson() {
  17         echo "{" >"$confjson"
  18         if ss_mkjson_ "$@" >>$confjson; then
  19                 sed -i -e '/^\s*$/d' -e '2,$s/^/\t/' -e '$s/,$//' "$confjson"
  20                 echo "}" >>"$confjson"
  21         else
  22                 rm -f "$confjson"
  23                 return 1
  24         fi
  25 }
  26
  27 ss_mkjson_() {
  28         local func
  29
  30         for func in "$@"; do
  31                 if ! "$func"; then
  32                         return 1
  33                 fi
  34         done
  35 }
  36
  37 ss_mkjson_server_conf() {
  38         local cfgserver
  39
  40         config_get cfgserver "$cfg" server
  41         [ -n "$cfgserver" ] || return 1
  42         eval "$(validate_server_section "$cfg" ss_validate_mklocal)"
  43         validate_server_section "$cfgserver" || return 1
  44         [ "$disabled" = 0 ] || return 1
  45         ss_mkjson_server_conf_ "$cfgserver"
  46 }
  47
  48 ss_mkjson_server_conf_() {
  49         [ -n "$server_port" ] || return 1
  50         password="${password//\"/\\\"}"
  51         cat <<-EOF
  52                 ${server:+${q}server${q}: ${q}$server${q},}
  53                 "server_port": $server_port,
  54                 ${method:+${q}method${q}: ${q}$method${q},}
  55                 ${key:+${q}key${q}: ${q}$key${q},}
  56                 ${password:+${q}password${q}: ${q}$password${q},}
  57         EOF
  58 }
  59
  60 ss_mkjson_common_conf() {
  61         [ "$fast_open" = 0 ] && fast_open=false || fast_open=true
  62         [ "$reuse_port" = 0 ] && reuse_port=false || reuse_port=true
  63         cat <<-EOF
  64                 "use_syslog": true,
  65                 "fast_open": $fast_open,
  66                 "reuse_port": $reuse_port,
  67                 ${local_address:+${q}local_address${q}: ${q}$local_address${q},}
  68                 ${local_port:+${q}local_port${q}: $local_port,}
  69                 ${mode:+${q}mode${q}: ${q}$mode${q},}
  70                 ${mtu:+${q}mtu${q}: $mtu,}
  71                 ${timeout:+${q}timeout${q}: $timeout,}
  72                 ${user:+${q}user${q}: ${q}$user${q},}
  73         EOF
  74 }
  75
  76 ss_mkjson_ss_local_conf() {
  77         ss_mkjson_server_conf
  78 }
  79
  80 ss_mkjson_ss_redir_conf() {
  81         ss_mkjson_server_conf
  82 }
  83
  84 ss_mkjson_ss_server_conf() {
  85         ss_mkjson_server_conf_
  86 }
  87
  88 ss_mkjson_ss_tunnel_conf() {
  89         ss_mkjson_server_conf || return 1
  90         [ -n "$tunnel_address" ] || return 1
  91         cat <<-EOF
  92                 ${tunnel_address:+${q}tunnel_address${q}: ${q}$tunnel_address${q},}
  93         EOF
  94 }
  95
  96 ss_xxx() {
  97         local cfg="$1"
  98         local cfgtype="$2"
  99         local bin="$ss_bindir/${cfgtype/_/-}"
 100         local confjson="$ss_confdir/$cfgtype.$cfg.json"
 101
 102         [ -x "$bin" ] || return
 103         eval "$("validate_${cfgtype}_section" "$cfg" ss_validate_mklocal)"
 104         "validate_${cfgtype}_section" "$cfg"
 105         [ "$disabled" = 0 ] || return
 106
 107         if ss_mkjson \
 108                         ss_mkjson_common_conf \
 109                         ss_mkjson_${cfgtype}_conf \
 110                         ; then
 111                 procd_open_instance "$cfgtype.$cfg"
 112                 procd_set_param command "$bin" -c "$confjson"
 113                 [ "$verbose" = 0 ] || procd_append_param command -v
 114                 [ -z "$bind_address" ] || procd_append_param command -b "$bind_address"
 115                 [ -z "$manager_address" ] || procd_append_param command --manager-address "$manager_address"
 116                 procd_set_param file "$confjson"
 117                 procd_set_param respawn
 118                 procd_close_instance
 119                 ss_rules_cb "$cfg"
 120         fi
 121 }
 122
 123 ss_rules_cb() {
 124         local cfgserver
 125         local server
 126
 127         [ "$cfgtype" != ss_server ] || return
 128         config_get cfgserver "$cfg" server
 129         config_get server "$cfgserver" server
 130
 131         ss_rules_servers="$ss_rules_servers $server"
 132         if [ "$cfgtype" = ss_redir ]; then
 133                 if [ "$mode" = tcp_only -o "$mode" = "tcp_and_udp" ]; then
 134                         eval "ss_rules_redir_tcp_$cfg=$local_port"
 135                 fi
 136                 if [ "$mode" = udp_only -o "$mode" = "tcp_and_udp" ]; then
 137                         eval "ss_rules_redir_udp_$cfg=$local_port"
 138                         eval "ss_rules_redir_server_udp_$cfg=$server"
 139                 fi
 140         fi
 141 }
 142
 143 ss_rules() {
 144         local cfg="ss_rules"
 145         local bin="$ss_bindir/ss-rules"
 146         local cfgtype
 147         local args local_port_tcp local_port_udp server_udp
 148         local i a_args d_args
 149
 150         [ -x "$bin" ] || return 1
 151         config_get cfgtype "$cfg" TYPE
 152         [ "$cfgtype" = ss_rules ] || return 1
 153
 154         eval "$(validate_ss_rules_section "$cfg" ss_validate_mklocal)"
 155         validate_ss_rules_section "$cfg"
 156         [ "$disabled" = 0 ] || return 1
 157
 158         eval local_port_tcp="\$ss_rules_redir_tcp_$redir_tcp"
 159         eval local_port_udp="\$ss_rules_redir_udp_$redir_udp"
 160         eval server_udp="\$ss_rules_redir_server_udp_$redir_udp"
 161         [ -z "$local_port_udp" ] || args="$args -U"
 162         case "$local_default" in
 163                 forward) args="$args -O" ;;
 164                 checkdst) args="$args -o" ;;
 165         esac
 166         case "$src_default" in
 167                 bypass) d_args=RETURN ;;
 168                 forward) d_args=SS_SPEC_WAN_FW ;;
 169                 checkdst) d_args=SS_SPEC_WAN_AC ;;
 170         esac
 171         ss_rules_servers="$(echo "$ss_rules_servers" | tr ' ' '\n' | sort -u)"
 172         for i in $src_ips_bypass; do a_args="b,$i $a_args"; done
 173         for i in $src_ips_forward; do a_args="g,$i $a_args"; done
 174         for i in $src_ips_checkdst; do a_args="n,$i $a_args"; done
 175
 176         "$bin" \
 177                         -s "$ss_rules_servers" \
 178                         -l "$local_port_tcp" \
 179                         -S "$server_udp" \
 180                         -L "$local_port_udp" \
 181                         -B "$dst_ips_bypass_file" \
 182                         -W "$dst_ips_forward_file" \
 183                         -b "$dst_ips_bypass" \
 184                         -w "$dst_ips_forward" \
 185                         -e "$ipt_args" \
 186                         -a "$a_args" \
 187                         -d "$d_args" \
 188                         $args \
 189                 || "$bin" -f
 190 }
 191
 192 start_service() {
 193         local cfgtype="$1"
 194
 195         mkdir -p "$ss_confdir"
 196         config_load shadowsocks-libev
 197         for cfgtype in ss_local ss_redir ss_server ss_tunnel; do
 198                 config_foreach ss_xxx "$cfgtype" "$cfgtype"
 199         done
 200         ss_rules
 201 }
 202
 203 stop_service() {
 204         local bin="$ss_bindir/ss-rules"
 205
 206         [ -x "$bin" ] && "$bin" -f
 207         rm -rf "$ss_confdir"
 208 }
 209
 210 service_triggers() {
 211         procd_add_reload_interface_trigger wan
 212         procd_add_reload_trigger shadowsocks-libev
 213         procd_open_validate
 214         validate_server_section
 215         validate_ss_local_section
 216         validate_ss_redir_section
 217         validate_ss_rules_section
 218         validate_ss_server_section
 219         validate_ss_tunnel_section
 220         procd_close_validate
 221 }
 222
 223 ss_validate_mklocal() {
 224         local tuple opts
 225
 226         shift 2
 227         for tuple in "$@"; do
 228                 opts="${tuple%%:*} $opts"
 229         done
 230         [ -z "$opts" ] || echo "local $opts"
 231 }
 232
 233 ss_validate() {
 234         uci_validate_section shadowsocks-libev "$@"
 235 }
 236
 237 validate_common_server_options_() {
 238         local cfgtype="$1"; shift
 239         local cfg="$1"; shift
 240         local func="$1"; shift
 241         local stream_methods='"table", "rc4", "rc4-md5", "aes-128-cfb", "aes-192-cfb", "aes-256-cfb", "aes-128-ctr", "aes-192-ctr", "aes-256-ctr", "bf-cfb", "camellia-128-cfb", "camellia-192-cfb", "camellia-256-cfb", "salsa20", "chacha20", "chacha20-ietf"'
 242         local aead_methods='"aes-128-gcm", "aes-192-gcm", "aes-256-gcm"'
 243
 244         "${func:-ss_validate}" "$cfgtype" "$cfg" "$@" \
 245                 'disabled:bool:0' \
 246                 'server:host' \
 247                 'server_port:port' \
 248                 'password:string' \
 249                 'key:string' \
 250                 "method:or($stream_methods, $aead_methods)"
 251 }
 252
 253 validate_common_client_options_() {
 254         validate_common_options_ "$@" \
 255                 'server:uci("shadowsocks-libev", "@server")' \
 256                 'local_address:host:0.0.0.0' \
 257                 'local_port:port'
 258 }
 259
 260 validate_common_options_() {
 261         local cfgtype="$1"; shift
 262         local cfg="$1"; shift
 263         local func="$1"; shift
 264
 265         "${func:-ss_validate}" "$cfgtype" "$cfg" "$@" \
 266                 'disabled:bool:0' \
 267                 'verbose:bool:0' \
 268                 'fast_open:bool:0' \
 269                 'reuse_port:bool:0' \
 270                 'mode:or("tcp_only", "udp_only", "tcp_and_udp")' \
 271                 'mtu:uinteger' \
 272                 'timeout:uinteger' \
 273                 'user:string'
 274 }
 275
 276 validate_server_section() {
 277         validate_common_server_options_ server "$1" "${2}"
 278 }
 279
 280 validate_ss_local_section() {
 281         validate_common_client_options_ ss_local "$1" "${2}"
 282 }
 283
 284 validate_ss_redir_section() {
 285         validate_common_client_options_ ss_redir "$1" "${2}"
 286 }
 287
 288 validate_ss_rules_section() {
 289         "${2:-ss_validate}" ss_rules "$1" \
 290                 'disabled:bool:0' \
 291                 'redir_tcp:uci("shadowsocks-libev", "@ss_redir")' \
 292                 'redir_udp:uci("shadowsocks-libev", "@ss_redir")' \
 293                 'src_ips_bypass:list(ipaddr)' \
 294                 'src_ips_forward:list(ipaddr)' \
 295                 'src_ips_checkdst:list(ipaddr)' \
 296                 'dst_ips_bypass_file:file' \
 297                 'dst_ips_bypass:list(ipaddr)' \
 298                 'dst_ips_forward_file:file' \
 299                 'dst_ips_forward:list(ipaddr)' \
 300                 'src_default:or("bypass", "forward", "checkdst")' \
 301                 'local_default:or("bypass", "forward", "checkdst")' \
 302                 'ipt_args:string'
 303 }
 304
 305 validate_ss_server_section() {
 306         validate_common_server_options_ ss_server "$1" \
 307                 validate_common_options_ \
 308                 "${2}" \
 309                 'bind_address:ipaddr' \
 310                 'manager_address:host'
 311 }
 312
 313 validate_ss_tunnel_section() {
 314         validate_common_client_options_ ss_tunnel "$1" \
 315                 "${2}" \
 316                 'tunnel_address:regex(".+\:[0-9]+")'
 317 }