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${q},}
  75         EOF
  76 }
  77
  78 ss_mkjson_ss_local_conf() {
  79         ss_mkjson_server_conf
  80 }
  81
  82 ss_mkjson_ss_redir_conf() {
  83         ss_mkjson_server_conf || return 1
  84         [ "$disable_sni" = 0 ] && disable_sni=false || disable_sni=true
  85         cat <<-EOF
  86                 ${q}disable_sni${q}: $disable_sni,
  87         EOF
  88 }
  89
  90 ss_mkjson_ss_server_conf() {
  91         ss_mkjson_server_conf_
  92 }
  93
  94 ss_mkjson_ss_tunnel_conf() {
  95         ss_mkjson_server_conf || return 1
  96         [ -n "$tunnel_address" ] || return 1
  97         cat <<-EOF
  98                 ${tunnel_address:+${q}tunnel_address${q}: ${q}$tunnel_address${q},}
  99         EOF
 100 }
 101
 102 ss_xxx() {
 103         local cfg="$1"
 104         local cfgtype="$2"
 105         local bin="$ss_bindir/${cfgtype/_/-}"
 106         local confjson="$ss_confdir/$cfgtype.$cfg.json"
 107
 108         [ -x "$bin" ] || return
 109         eval "$("validate_${cfgtype}_section" "$cfg" ss_validate_mklocal)"
 110         "validate_${cfgtype}_section" "$cfg" || return 1
 111         [ "$disabled" = 0 ] || return
 112
 113         if ss_mkjson \
 114                         ss_mkjson_common_conf \
 115                         ss_mkjson_${cfgtype}_conf \
 116                         ; then
 117                 procd_open_instance "$cfgtype.$cfg"
 118                 procd_set_param command "$bin" -c "$confjson"
 119                 [ "$verbose" = 0 ] || procd_append_param command -v
 120                 [ -z "$bind_address" ] || procd_append_param command -b "$bind_address"
 121                 [ -z "$manager_address" ] || procd_append_param command --manager-address "$manager_address"
 122                 procd_set_param file "$confjson"
 123                 procd_set_param respawn
 124                 procd_close_instance
 125                 ss_rules_cb "$cfg"
 126         fi
 127 }
 128
 129 ss_rules_cb() {
 130         local cfgserver server
 131
 132         if [ "$cfgtype" = ss_redir ]; then
 133                 config_get cfgserver "$cfg" server
 134                 config_get server "$cfgserver" server
 135                 ss_redir_servers="$ss_redir_servers $server"
 136                 if [ "$mode" = tcp_only -o "$mode" = "tcp_and_udp" ]; then
 137                         eval "ss_rules_redir_tcp_$cfg=$local_port"
 138                 fi
 139                 if [ "$mode" = udp_only -o "$mode" = "tcp_and_udp" ]; then
 140                         eval "ss_rules_redir_udp_$cfg=$local_port"
 141                 fi
 142         fi
 143 }
 144
 145 ss_rules() {
 146         local cfg="ss_rules"
 147         local bin="$ss_bindir/ss-rules"
 148         local cfgtype
 149         local local_port_tcp local_port_udp
 150         local 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" || return 1
 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_$redir_udp"
 162         [ -n "$local_port_tcp" -o -n "$local_port_udp" ] || return 1
 163         ss_redir_servers="$(echo "$ss_redir_servers" | tr ' ' '\n' | sort -u)"
 164         [ "$dst_forward_recentrst" = 0 ] || args="$args --dst-forward-recentrst"
 165
 166         "$bin" \
 167                         -s "$ss_redir_servers" \
 168                         -l "$local_port_tcp" \
 169                         -L "$local_port_udp" \
 170                         --src-default "$src_default" \
 171                         --dst-default "$dst_default" \
 172                         --local-default "$local_default" \
 173                         --dst-bypass-file "$dst_ips_bypass_file" \
 174                         --dst-forward-file "$dst_ips_forward_file" \
 175                         --dst-bypass "$dst_ips_bypass" \
 176                         --dst-forward "$dst_ips_forward" \
 177                         --src-bypass "$src_ips_bypass" \
 178                         --src-forward "$src_ips_forward" \
 179                         --src-checkdst "$src_ips_checkdst" \
 180                         --ifnames "$ifnames" \
 181                         --ipt-extra "$ipt_args" \
 182                         $args \
 183                 || "$bin" -f
 184 }
 185
 186 start_service() {
 187         local cfgtype="$1"
 188
 189         mkdir -p "$ss_confdir"
 190         config_load shadowsocks-libev
 191         for cfgtype in ss_local ss_redir ss_server ss_tunnel; do
 192                 config_foreach ss_xxx "$cfgtype" "$cfgtype"
 193         done
 194         ss_rules
 195 }
 196
 197 stop_service() {
 198         local bin="$ss_bindir/ss-rules"
 199
 200         [ -x "$bin" ] && "$bin" -f
 201         rm -rf "$ss_confdir"
 202 }
 203
 204 service_triggers() {
 205         procd_add_reload_interface_trigger wan
 206         procd_add_reload_trigger shadowsocks-libev
 207         procd_open_validate
 208         validate_server_section
 209         validate_ss_local_section
 210         validate_ss_redir_section
 211         validate_ss_rules_section
 212         validate_ss_server_section
 213         validate_ss_tunnel_section
 214         procd_close_validate
 215 }
 216
 217 ss_validate_mklocal() {
 218         local tuple opts
 219
 220         shift 2
 221         for tuple in "$@"; do
 222                 opts="${tuple%%:*} $opts"
 223         done
 224         [ -z "$opts" ] || echo "local $opts"
 225 }
 226
 227 ss_validate() {
 228         uci_validate_section shadowsocks-libev "$@"
 229 }
 230
 231 validate_common_server_options_() {
 232         local cfgtype="$1"; shift
 233         local cfg="$1"; shift
 234         local func="$1"; shift
 235         local stream_methods='"table", "rc4", "rc4-md5", "aes-128-cfb", "aes-192-cfb", "aes-256-cfb", "aes-128-ctr", "aes-192-ctr", "aes-256-ctr", "bf-cfb", "camellia-128-cfb", "camellia-192-cfb", "camellia-256-cfb", "salsa20", "chacha20", "chacha20-ietf"'
 236         local aead_methods='"aes-128-gcm", "aes-192-gcm", "aes-256-gcm", "chacha20-ietf-poly1305", "xchacha20-ietf-poly1305"'
 237
 238         "${func:-ss_validate}" "$cfgtype" "$cfg" "$@" \
 239                 'disabled:bool:0' \
 240                 'server:host' \
 241                 'server_port:port' \
 242                 'password:string' \
 243                 'key:string' \
 244                 "method:or($stream_methods, $aead_methods)"
 245 }
 246
 247 validate_common_client_options_() {
 248         validate_common_options_ "$@" \
 249                 'server:uci("shadowsocks-libev", "@server")' \
 250                 'local_address:host:0.0.0.0' \
 251                 'local_port:port'
 252 }
 253
 254 validate_common_options_() {
 255         local cfgtype="$1"; shift
 256         local cfg="$1"; shift
 257         local func="$1"; shift
 258
 259         "${func:-ss_validate}" "$cfgtype" "$cfg" "$@" \
 260                 'disabled:bool:0' \
 261                 'fast_open:bool:0' \
 262                 'ipv6_first:bool:0' \
 263                 'reuse_port:bool:0' \
 264                 'verbose:bool:0' \
 265                 'mode:or("tcp_only", "udp_only", "tcp_and_udp"):tcp_only' \
 266                 'mtu:uinteger' \
 267                 'timeout:uinteger' \
 268                 'user:string'
 269 }
 270
 271 validate_server_section() {
 272         validate_common_server_options_ server "$1" "${2}"
 273 }
 274
 275 validate_ss_local_section() {
 276         validate_common_client_options_ ss_local "$1" "${2}"
 277 }
 278
 279 validate_ss_redir_section() {
 280         validate_common_client_options_ ss_redir "$1" \
 281                 "${2}" \
 282                 'disable_sni:bool:0'
 283 }
 284
 285 validate_ss_rules_section() {
 286         "${2:-ss_validate}" ss_rules "$1" \
 287                 'disabled:bool:0' \
 288                 'redir_tcp:uci("shadowsocks-libev", "@ss_redir")' \
 289                 'redir_udp:uci("shadowsocks-libev", "@ss_redir")' \
 290                 'src_ips_bypass:list(or(ip4addr,cidr4))' \
 291                 'src_ips_forward:list(or(ip4addr,cidr4))' \
 292                 'src_ips_checkdst:list(or(ip4addr,cidr4))' \
 293                 'dst_ips_bypass_file:file' \
 294                 'dst_ips_bypass:list(or(ip4addr,cidr4))' \
 295                 'dst_ips_forward_file:file' \
 296                 'dst_ips_forward:list(or(ip4addr,cidr4))' \
 297                 'src_default:or("bypass", "forward", "checkdst"):checkdst' \
 298                 'dst_default:or("bypass", "forward"):bypass' \
 299                 'local_default:or("bypass", "forward", "checkdst"):bypass' \
 300                 'dst_forward_recentrst:bool:0' \
 301                 'ifnames:list(maxlength(15))' \
 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 }