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${q},}
  57         EOF
  58 }
  59
  60 ss_mkjson_common_conf() {
  61         [ "$ipv6_first" = 0 ] && ipv6_first=false || ipv6_first=true
  62         [ "$fast_open" = 0 ] && fast_open=false || fast_open=true
  63         [ "$reuse_port" = 0 ] && reuse_port=false || reuse_port=true
  64         cat <<-EOF
  65                 "use_syslog": true,
  66                 "ipv6_first": $ipv6_first,
  67                 "fast_open": $fast_open,
  68                 "reuse_port": $reuse_port,
  69                 ${local_address:+${q}local_address${q}: ${q}$local_address${q},}
  70                 ${local_port:+${q}local_port${q}: $local_port,}
  71                 ${mode:+${q}mode${q}: ${q}$mode${q},}
  72                 ${mtu:+${q}mtu${q}: $mtu,}
  73                 ${timeout:+${q}timeout${q}: $timeout,}
  74                 ${user:+${q}user${q}: ${q}$user${q},}
  75         EOF
  76 }
  77
  78 ss_mkjson_ss_local_conf() {
  79         ss_mkjson_server_conf
  80 }
  81
  82 ss_mkjson_ss_redir_conf() {
  83         ss_mkjson_server_conf
  84 }
  85
  86 ss_mkjson_ss_server_conf() {
  87         ss_mkjson_server_conf_
  88 }
  89
  90 ss_mkjson_ss_tunnel_conf() {
  91         ss_mkjson_server_conf || return 1
  92         [ -n "$tunnel_address" ] || return 1
  93         cat <<-EOF
  94                 ${tunnel_address:+${q}tunnel_address${q}: ${q}$tunnel_address${q},}
  95         EOF
  96 }
  97
  98 ss_xxx() {
  99         local cfg="$1"
 100         local cfgtype="$2"
 101         local bin="$ss_bindir/${cfgtype/_/-}"
 102         local confjson="$ss_confdir/$cfgtype.$cfg.json"
 103
 104         [ -x "$bin" ] || return
 105         eval "$("validate_${cfgtype}_section" "$cfg" ss_validate_mklocal)"
 106         "validate_${cfgtype}_section" "$cfg"
 107         [ "$disabled" = 0 ] || return
 108
 109         if ss_mkjson \
 110                         ss_mkjson_common_conf \
 111                         ss_mkjson_${cfgtype}_conf \
 112                         ; then
 113                 procd_open_instance "$cfgtype.$cfg"
 114                 procd_set_param command "$bin" -c "$confjson"
 115                 [ "$verbose" = 0 ] || procd_append_param command -v
 116                 [ -z "$bind_address" ] || procd_append_param command -b "$bind_address"
 117                 [ -z "$manager_address" ] || procd_append_param command --manager-address "$manager_address"
 118                 procd_set_param file "$confjson"
 119                 procd_set_param respawn
 120                 procd_close_instance
 121                 ss_rules_cb "$cfg"
 122         fi
 123 }
 124
 125 ss_rules_cb() {
 126         local cfgserver
 127         local server
 128
 129         [ "$cfgtype" != ss_server ] || return
 130         config_get cfgserver "$cfg" server
 131         config_get server "$cfgserver" server
 132
 133         ss_rules_servers="$ss_rules_servers $server"
 134         if [ "$cfgtype" = ss_redir ]; then
 135                 if [ "$mode" = tcp_only -o "$mode" = "tcp_and_udp" ]; then
 136                         eval "ss_rules_redir_tcp_$cfg=$local_port"
 137                 fi
 138                 if [ "$mode" = udp_only -o "$mode" = "tcp_and_udp" ]; then
 139                         eval "ss_rules_redir_udp_$cfg=$local_port"
 140                         eval "ss_rules_redir_server_udp_$cfg=$server"
 141                 fi
 142         fi
 143 }
 144
 145 ss_rules() {
 146         local cfg="ss_rules"
 147         local bin="$ss_bindir/ss-rules"
 148         local cfgtype
 149         local args local_port_tcp local_port_udp server_udp
 150         local i a_args d_args
 151
 152         [ -x "$bin" ] || return 1
 153         config_get cfgtype "$cfg" TYPE
 154         [ "$cfgtype" = ss_rules ] || return 1
 155
 156         eval "$(validate_ss_rules_section "$cfg" ss_validate_mklocal)"
 157         validate_ss_rules_section "$cfg"
 158         [ "$disabled" = 0 ] || return 1
 159
 160         eval local_port_tcp="\$ss_rules_redir_tcp_$redir_tcp"
 161         eval local_port_udp="\$ss_rules_redir_udp_$redir_udp"
 162         eval server_udp="\$ss_rules_redir_server_udp_$redir_udp"
 163         [ -z "$local_port_udp" ] || args="$args -U"
 164         case "$local_default" in
 165                 forward) args="$args -O" ;;
 166                 checkdst) args="$args -o" ;;
 167         esac
 168         case "$src_default" in
 169                 bypass) d_args=RETURN ;;
 170                 forward) d_args=SS_SPEC_WAN_FW ;;
 171                 checkdst) d_args=SS_SPEC_WAN_AC ;;
 172         esac
 173         ss_rules_servers="$(echo "$ss_rules_servers" | tr ' ' '\n' | sort -u)"
 174         for i in $src_ips_bypass; do a_args="b,$i $a_args"; done
 175         for i in $src_ips_forward; do a_args="g,$i $a_args"; done
 176         for i in $src_ips_checkdst; do a_args="n,$i $a_args"; done
 177
 178         "$bin" \
 179                         -s "$ss_rules_servers" \
 180                         -l "$local_port_tcp" \
 181                         -S "$server_udp" \
 182                         -L "$local_port_udp" \
 183                         -B "$dst_ips_bypass_file" \
 184                         -W "$dst_ips_forward_file" \
 185                         -b "$dst_ips_bypass" \
 186                         -w "$dst_ips_forward" \
 187                         -e "$ipt_args" \
 188                         -a "$a_args" \
 189                         -d "$d_args" \
 190                         $args \
 191                 || "$bin" -f
 192 }
 193
 194 start_service() {
 195         local cfgtype="$1"
 196
 197         mkdir -p "$ss_confdir"
 198         config_load shadowsocks-libev
 199         for cfgtype in ss_local ss_redir ss_server ss_tunnel; do
 200                 config_foreach ss_xxx "$cfgtype" "$cfgtype"
 201         done
 202         ss_rules
 203 }
 204
 205 stop_service() {
 206         local bin="$ss_bindir/ss-rules"
 207
 208         [ -x "$bin" ] && "$bin" -f
 209         rm -rf "$ss_confdir"
 210 }
 211
 212 service_triggers() {
 213         procd_add_reload_interface_trigger wan
 214         procd_add_reload_trigger shadowsocks-libev
 215         procd_open_validate
 216         validate_server_section
 217         validate_ss_local_section
 218         validate_ss_redir_section
 219         validate_ss_rules_section
 220         validate_ss_server_section
 221         validate_ss_tunnel_section
 222         procd_close_validate
 223 }
 224
 225 ss_validate_mklocal() {
 226         local tuple opts
 227
 228         shift 2
 229         for tuple in "$@"; do
 230                 opts="${tuple%%:*} $opts"
 231         done
 232         [ -z "$opts" ] || echo "local $opts"
 233 }
 234
 235 ss_validate() {
 236         uci_validate_section shadowsocks-libev "$@"
 237 }
 238
 239 validate_common_server_options_() {
 240         local cfgtype="$1"; shift
 241         local cfg="$1"; shift
 242         local func="$1"; shift
 243         local stream_methods='"table", "rc4", "rc4-md5", "aes-128-cfb", "aes-192-cfb", "aes-256-cfb", "aes-128-ctr", "aes-192-ctr", "aes-256-ctr", "bf-cfb", "camellia-128-cfb", "camellia-192-cfb", "camellia-256-cfb", "salsa20", "chacha20", "chacha20-ietf"'
 244         local aead_methods='"aes-128-gcm", "aes-192-gcm", "aes-256-gcm"'
 245
 246         "${func:-ss_validate}" "$cfgtype" "$cfg" "$@" \
 247                 'disabled:bool:0' \
 248                 'server:host' \
 249                 'server_port:port' \
 250                 'password:string' \
 251                 'key:string' \
 252                 "method:or($stream_methods, $aead_methods)"
 253 }
 254
 255 validate_common_client_options_() {
 256         validate_common_options_ "$@" \
 257                 'server:uci("shadowsocks-libev", "@server")' \
 258                 'local_address:host:0.0.0.0' \
 259                 'local_port:port'
 260 }
 261
 262 validate_common_options_() {
 263         local cfgtype="$1"; shift
 264         local cfg="$1"; shift
 265         local func="$1"; shift
 266
 267         "${func:-ss_validate}" "$cfgtype" "$cfg" "$@" \
 268                 'disabled:bool:0' \
 269                 'fast_open:bool:0' \
 270                 'ipv6_first:bool:0' \
 271                 'reuse_port:bool:0' \
 272                 'verbose:bool:0' \
 273                 'mode:or("tcp_only", "udp_only", "tcp_and_udp")' \
 274                 'mtu:uinteger' \
 275                 'timeout:uinteger' \
 276                 'user:string'
 277 }
 278
 279 validate_server_section() {
 280         validate_common_server_options_ server "$1" "${2}"
 281 }
 282
 283 validate_ss_local_section() {
 284         validate_common_client_options_ ss_local "$1" "${2}"
 285 }
 286
 287 validate_ss_redir_section() {
 288         validate_common_client_options_ ss_redir "$1" "${2}"
 289 }
 290
 291 validate_ss_rules_section() {
 292         "${2:-ss_validate}" ss_rules "$1" \
 293                 'disabled:bool:0' \
 294                 'redir_tcp:uci("shadowsocks-libev", "@ss_redir")' \
 295                 'redir_udp:uci("shadowsocks-libev", "@ss_redir")' \
 296                 'src_ips_bypass:list(ipaddr)' \
 297                 'src_ips_forward:list(ipaddr)' \
 298                 'src_ips_checkdst:list(ipaddr)' \
 299                 'dst_ips_bypass_file:file' \
 300                 'dst_ips_bypass:list(ipaddr)' \
 301                 'dst_ips_forward_file:file' \
 302                 'dst_ips_forward:list(ipaddr)' \
 303                 'src_default:or("bypass", "forward", "checkdst")' \
 304                 'local_default:or("bypass", "forward", "checkdst")' \
 305                 'ipt_args:string'
 306 }
 307
 308 validate_ss_server_section() {
 309         validate_common_server_options_ ss_server "$1" \
 310                 validate_common_options_ \
 311                 "${2}" \
 312                 'bind_address:ipaddr' \
 313                 'manager_address:host'
 314 }
 315
 316 validate_ss_tunnel_section() {
 317         validate_common_client_options_ ss_tunnel "$1" \
 318                 "${2}" \
 319                 'tunnel_address:regex(".+\:[0-9]+")'
 320 }