core_rule.sh 1.9 KB

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  1. # Copyright (C) 2009-2010 OpenWrt.org
  2. fw_config_get_rule() {
  3. [ "${rule_NAME}" != "$1" ] || return
  4. fw_config_get_section "$1" rule { \
  5. string _name "$1" \
  6. string name "" \
  7. string src "" \
  8. ipaddr src_ip "" \
  9. string src_mac "" \
  10. string src_port "" \
  11. string dest "" \
  12. ipaddr dest_ip "" \
  13. string dest_port "" \
  14. string icmp_type "" \
  15. string proto "tcpudp" \
  16. string target "" \
  17. string family "" \
  18. } || return
  19. [ -n "$rule_name" ] || rule_name=$rule__name
  20. [ "$rule_proto" == "icmp" ] || rule_icmp_type=
  21. }
  22. fw_load_rule() {
  23. fw_config_get_rule "$1"
  24. [ "$rule_target" != "NOTRACK" ] || [ -n "$rule_src" ] || {
  25. fw_log error "NOTRACK rule ${rule_name}: needs src, skipping"
  26. return 0
  27. }
  28. fw_callback pre rule
  29. fw_get_port_range rule_src_port $rule_src_port
  30. fw_get_port_range rule_dest_port $rule_dest_port
  31. local table=f
  32. local chain=input
  33. local target="${rule_target:-REJECT}"
  34. if [ "$target" == "NOTRACK" ]; then
  35. table=r
  36. chain="zone_${rule_src}_notrack"
  37. else
  38. [ -n "$rule_src" ] && chain="zone_${rule_src}${rule_dest:+_forward}"
  39. [ -n "$rule_dest" ] && target="zone_${rule_dest}_${target}"
  40. fi
  41. local mode
  42. fw_get_family_mode mode ${rule_family:-x} $rule_src I
  43. local src_spec dest_spec
  44. fw_get_negation src_spec '-s' "${rule_src_ip:+$rule_src_ip/$rule_src_ip_prefixlen}"
  45. fw_get_negation dest_spec '-d' "${rule_dest_ip:+$rule_dest_ip/$rule_dest_ip_prefixlen}"
  46. [ "$rule_proto" == "tcpudp" ] && rule_proto="tcp udp"
  47. for rule_proto in $rule_proto; do
  48. local rule_pos
  49. eval 'rule_pos=$((++FW__RULE_COUNT_'${mode#G}'_'$chain'))'
  50. fw add $mode $table $chain $target $rule_pos { $rule_src_ip $rule_dest_ip } { \
  51. $src_spec $dest_spec \
  52. ${rule_proto:+-p $rule_proto} \
  53. ${rule_src_port:+--sport $rule_src_port} \
  54. ${rule_src_mac:+-m mac --mac-source $rule_src_mac} \
  55. ${rule_dest_port:+--dport $rule_dest_port} \
  56. ${rule_icmp_type:+--icmp-type $rule_icmp_type} \
  57. }
  58. done
  59. fw_callback post rule
  60. }