/* * QEMU USB HID devices * * Copyright (c) 2005 Fabrice Bellard * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN * THE SOFTWARE. */ #include "vl.h" /* HID interface requests */ #define GET_REPORT 0xa101 #define GET_IDLE 0xa102 #define GET_PROTOCOL 0xa103 #define SET_IDLE 0x210a #define SET_PROTOCOL 0x210b #define USB_MOUSE 1 #define USB_TABLET 2 typedef struct USBMouseState { USBDevice dev; int dx, dy, dz, buttons_state; int x, y; int kind; int mouse_grabbed; int status_changed; QEMUPutMouseEntry *eh_entry; } USBMouseState; /* mostly the same values as the Bochs USB Mouse device */ static const uint8_t qemu_mouse_dev_descriptor[] = { 0x12, /* u8 bLength; */ 0x01, /* u8 bDescriptorType; Device */ 0x10, 0x00, /* u16 bcdUSB; v1.0 */ 0x00, /* u8 bDeviceClass; */ 0x00, /* u8 bDeviceSubClass; */ 0x00, /* u8 bDeviceProtocol; [ low/full speeds only ] */ 0x08, /* u8 bMaxPacketSize0; 8 Bytes */ 0x27, 0x06, /* u16 idVendor; */ 0x01, 0x00, /* u16 idProduct; */ 0x00, 0x00, /* u16 bcdDevice */ 0x03, /* u8 iManufacturer; */ 0x02, /* u8 iProduct; */ 0x01, /* u8 iSerialNumber; */ 0x01 /* u8 bNumConfigurations; */ }; static const uint8_t qemu_mouse_config_descriptor[] = { /* one configuration */ 0x09, /* u8 bLength; */ 0x02, /* u8 bDescriptorType; Configuration */ 0x22, 0x00, /* u16 wTotalLength; */ 0x01, /* u8 bNumInterfaces; (1) */ 0x01, /* u8 bConfigurationValue; */ 0x04, /* u8 iConfiguration; */ 0xa0, /* u8 bmAttributes; Bit 7: must be set, 6: Self-powered, 5: Remote wakeup, 4..0: resvd */ 50, /* u8 MaxPower; */ /* USB 1.1: * USB 2.0, single TT organization (mandatory): * one interface, protocol 0 * * USB 2.0, multiple TT organization (optional): * two interfaces, protocols 1 (like single TT) * and 2 (multiple TT mode) ... config is * sometimes settable * NOT IMPLEMENTED */ /* one interface */ 0x09, /* u8 if_bLength; */ 0x04, /* u8 if_bDescriptorType; Interface */ 0x00, /* u8 if_bInterfaceNumber; */ 0x00, /* u8 if_bAlternateSetting; */ 0x01, /* u8 if_bNumEndpoints; */ 0x03, /* u8 if_bInterfaceClass; */ 0x01, /* u8 if_bInterfaceSubClass; */ 0x02, /* u8 if_bInterfaceProtocol; [usb1.1 or single tt] */ 0x05, /* u8 if_iInterface; */ /* HID descriptor */ 0x09, /* u8 bLength; */ 0x21, /* u8 bDescriptorType; */ 0x01, 0x00, /* u16 HID_class */ 0x00, /* u8 country_code */ 0x01, /* u8 num_descriptors */ 0x22, /* u8 type; Report */ 50, 0, /* u16 len */ /* one endpoint (status change endpoint) */ 0x07, /* u8 ep_bLength; */ 0x05, /* u8 ep_bDescriptorType; Endpoint */ 0x81, /* u8 ep_bEndpointAddress; IN Endpoint 1 */ 0x03, /* u8 ep_bmAttributes; Interrupt */ 0x03, 0x00, /* u16 ep_wMaxPacketSize; */ 0x0a, /* u8 ep_bInterval; (255ms -- usb 2.0 spec) */ }; static const uint8_t qemu_tablet_config_descriptor[] = { /* one configuration */ 0x09, /* u8 bLength; */ 0x02, /* u8 bDescriptorType; Configuration */ 0x22, 0x00, /* u16 wTotalLength; */ 0x01, /* u8 bNumInterfaces; (1) */ 0x01, /* u8 bConfigurationValue; */ 0x04, /* u8 iConfiguration; */ 0xa0, /* u8 bmAttributes; Bit 7: must be set, 6: Self-powered, 5: Remote wakeup, 4..0: resvd */ 50, /* u8 MaxPower; */ /* USB 1.1: * USB 2.0, single TT organization (mandatory): * one interface, protocol 0 * * USB 2.0, multiple TT organization (optional): * two interfaces, protocols 1 (like single TT) * and 2 (multiple TT mode) ... config is * sometimes settable * NOT IMPLEMENTED */ /* one interface */ 0x09, /* u8 if_bLength; */ 0x04, /* u8 if_bDescriptorType; Interface */ 0x00, /* u8 if_bInterfaceNumber; */ 0x00, /* u8 if_bAlternateSetting; */ 0x01, /* u8 if_bNumEndpoints; */ 0x03, /* u8 if_bInterfaceClass; */ 0x01, /* u8 if_bInterfaceSubClass; */ 0x02, /* u8 if_bInterfaceProtocol; [usb1.1 or single tt] */ 0x05, /* u8 if_iInterface; */ /* HID descriptor */ 0x09, /* u8 bLength; */ 0x21, /* u8 bDescriptorType; */ 0x01, 0x00, /* u16 HID_class */ 0x00, /* u8 country_code */ 0x01, /* u8 num_descriptors */ 0x22, /* u8 type; Report */ 74, 0, /* u16 len */ /* one endpoint (status change endpoint) */ 0x07, /* u8 ep_bLength; */ 0x05, /* u8 ep_bDescriptorType; Endpoint */ 0x81, /* u8 ep_bEndpointAddress; IN Endpoint 1 */ 0x03, /* u8 ep_bmAttributes; Interrupt */ 0x08, 0x00, /* u16 ep_wMaxPacketSize; */ 0x03, /* u8 ep_bInterval; (255ms -- usb 2.0 spec) */ }; static const uint8_t qemu_mouse_hid_report_descriptor[] = { 0x05, 0x01, 0x09, 0x02, 0xA1, 0x01, 0x09, 0x01, 0xA1, 0x00, 0x05, 0x09, 0x19, 0x01, 0x29, 0x03, 0x15, 0x00, 0x25, 0x01, 0x95, 0x03, 0x75, 0x01, 0x81, 0x02, 0x95, 0x01, 0x75, 0x05, 0x81, 0x01, 0x05, 0x01, 0x09, 0x30, 0x09, 0x31, 0x15, 0x81, 0x25, 0x7F, 0x75, 0x08, 0x95, 0x02, 0x81, 0x06, 0xC0, 0xC0, }; static const uint8_t qemu_tablet_hid_report_descriptor[] = { 0x05, 0x01, /* Usage Page Generic Desktop */ 0x09, 0x01, /* Usage Mouse */ 0xA1, 0x01, /* Collection Application */ 0x09, 0x01, /* Usage Pointer */ 0xA1, 0x00, /* Collection Physical */ 0x05, 0x09, /* Usage Page Button */ 0x19, 0x01, /* Usage Minimum Button 1 */ 0x29, 0x03, /* Usage Maximum Button 3 */ 0x15, 0x00, /* Logical Minimum 0 */ 0x25, 0x01, /* Logical Maximum 1 */ 0x95, 0x03, /* Report Count 3 */ 0x75, 0x01, /* Report Size 1 */ 0x81, 0x02, /* Input (Data, Var, Abs) */ 0x95, 0x01, /* Report Count 1 */ 0x75, 0x05, /* Report Size 5 */ 0x81, 0x01, /* Input (Cnst, Var, Abs) */ 0x05, 0x01, /* Usage Page Generic Desktop */ 0x09, 0x30, /* Usage X */ 0x09, 0x31, /* Usage Y */ 0x15, 0x00, /* Logical Minimum 0 */ 0x26, 0xFF, 0x7F, /* Logical Maximum 0x7fff */ 0x35, 0x00, /* Physical Minimum 0 */ 0x46, 0xFE, 0x7F, /* Physical Maximum 0x7fff */ 0x75, 0x10, /* Report Size 16 */ 0x95, 0x02, /* Report Count 2 */ 0x81, 0x02, /* Input (Data, Var, Abs) */ 0x05, 0x01, /* Usage Page Generic Desktop */ 0x09, 0x38, /* Usage Wheel */ 0x15, 0x81, /* Logical Minimum -127 */ 0x25, 0x7F, /* Logical Maximum 127 */ 0x35, 0x00, /* Physical Minimum 0 (same as logical) */ 0x45, 0x00, /* Physical Maximum 0 (same as logical) */ 0x75, 0x08, /* Report Size 8 */ 0x95, 0x01, /* Report Count 1 */ 0x81, 0x02, /* Input (Data, Var, Rel) */ 0xC0, /* End Collection */ 0xC0, /* End Collection */ }; static void usb_mouse_event(void *opaque, int dx1, int dy1, int dz1, int buttons_state) { USBMouseState *s = opaque; s->dx += dx1; s->dy += dy1; s->dz += dz1; s->buttons_state = buttons_state; s->status_changed = 1; } static void usb_tablet_event(void *opaque, int x, int y, int dz, int buttons_state) { USBMouseState *s = opaque; s->x = x; s->y = y; s->dz += dz; s->buttons_state = buttons_state; s->status_changed = 1; } static inline int int_clamp(int val, int vmin, int vmax) { if (val < vmin) return vmin; else if (val > vmax) return vmax; else return val; } static int usb_mouse_poll(USBMouseState *s, uint8_t *buf, int len) { int dx, dy, dz, b, l; if (!s->mouse_grabbed) { s->eh_entry = qemu_add_mouse_event_handler(usb_mouse_event, s, 0, "QEMU USB Mouse"); s->mouse_grabbed = 1; } dx = int_clamp(s->dx, -128, 127); dy = int_clamp(s->dy, -128, 127); dz = int_clamp(s->dz, -128, 127); s->dx -= dx; s->dy -= dy; s->dz -= dz; b = 0; if (s->buttons_state & MOUSE_EVENT_LBUTTON) b |= 0x01; if (s->buttons_state & MOUSE_EVENT_RBUTTON) b |= 0x02; if (s->buttons_state & MOUSE_EVENT_MBUTTON) b |= 0x04; buf[0] = b; buf[1] = dx; buf[2] = dy; l = 3; if (len >= 4) { buf[3] = dz; l = 4; } return l; } static int usb_tablet_poll(USBMouseState *s, uint8_t *buf, int len) { int dz, b, l; if (!s->mouse_grabbed) { s->eh_entry = qemu_add_mouse_event_handler(usb_tablet_event, s, 1, "QEMU USB Tablet"); s->mouse_grabbed = 1; } dz = int_clamp(s->dz, -128, 127); s->dz -= dz; /* Appears we have to invert the wheel direction */ dz = 0 - dz; b = 0; if (s->buttons_state & MOUSE_EVENT_LBUTTON) b |= 0x01; if (s->buttons_state & MOUSE_EVENT_RBUTTON) b |= 0x02; if (s->buttons_state & MOUSE_EVENT_MBUTTON) b |= 0x04; buf[0] = b; buf[1] = s->x & 0xff; buf[2] = s->x >> 8; buf[3] = s->y & 0xff; buf[4] = s->y >> 8; buf[5] = dz; l = 6; return l; } static void usb_mouse_handle_reset(USBDevice *dev) { USBMouseState *s = (USBMouseState *)dev; s->dx = 0; s->dy = 0; s->dz = 0; s->x = 0; s->y = 0; s->buttons_state = 0; } static int usb_mouse_handle_control(USBDevice *dev, int request, int value, int index, int length, uint8_t *data) { USBMouseState *s = (USBMouseState *)dev; int ret = 0; switch(request) { case DeviceRequest | USB_REQ_GET_STATUS: data[0] = (1 << USB_DEVICE_SELF_POWERED) | (dev->remote_wakeup << USB_DEVICE_REMOTE_WAKEUP); data[1] = 0x00; ret = 2; break; case DeviceOutRequest | USB_REQ_CLEAR_FEATURE: if (value == USB_DEVICE_REMOTE_WAKEUP) { dev->remote_wakeup = 0; } else { goto fail; } ret = 0; break; case DeviceOutRequest | USB_REQ_SET_FEATURE: if (value == USB_DEVICE_REMOTE_WAKEUP) { dev->remote_wakeup = 1; } else { goto fail; } ret = 0; break; case DeviceOutRequest | USB_REQ_SET_ADDRESS: dev->addr = value; ret = 0; break; case DeviceRequest | USB_REQ_GET_DESCRIPTOR: switch(value >> 8) { case USB_DT_DEVICE: memcpy(data, qemu_mouse_dev_descriptor, sizeof(qemu_mouse_dev_descriptor)); ret = sizeof(qemu_mouse_dev_descriptor); break; case USB_DT_CONFIG: if (s->kind == USB_MOUSE) { memcpy(data, qemu_mouse_config_descriptor, sizeof(qemu_mouse_config_descriptor)); ret = sizeof(qemu_mouse_config_descriptor); } else if (s->kind == USB_TABLET) { memcpy(data, qemu_tablet_config_descriptor, sizeof(qemu_tablet_config_descriptor)); ret = sizeof(qemu_tablet_config_descriptor); } break; case USB_DT_STRING: switch(value & 0xff) { case 0: /* language ids */ data[0] = 4; data[1] = 3; data[2] = 0x09; data[3] = 0x04; ret = 4; break; case 1: /* serial number */ ret = set_usb_string(data, "1"); break; case 2: /* product description */ if (s->kind == USB_MOUSE) ret = set_usb_string(data, "QEMU USB Mouse"); else if (s->kind == USB_TABLET) ret = set_usb_string(data, "QEMU USB Tablet"); break; case 3: /* vendor description */ ret = set_usb_string(data, "QEMU " QEMU_VERSION); break; case 4: ret = set_usb_string(data, "HID Mouse"); break; case 5: ret = set_usb_string(data, "Endpoint1 Interrupt Pipe"); break; default: goto fail; } break; default: goto fail; } break; case DeviceRequest | USB_REQ_GET_CONFIGURATION: data[0] = 1; ret = 1; break; case DeviceOutRequest | USB_REQ_SET_CONFIGURATION: ret = 0; break; case DeviceRequest | USB_REQ_GET_INTERFACE: data[0] = 0; ret = 1; break; case DeviceOutRequest | USB_REQ_SET_INTERFACE: ret = 0; break; /* hid specific requests */ case InterfaceRequest | USB_REQ_GET_DESCRIPTOR: switch(value >> 8) { case 0x22: if (s->kind == USB_MOUSE) { memcpy(data, qemu_mouse_hid_report_descriptor, sizeof(qemu_mouse_hid_report_descriptor)); ret = sizeof(qemu_mouse_hid_report_descriptor); } else if (s->kind == USB_TABLET) { memcpy(data, qemu_tablet_hid_report_descriptor, sizeof(qemu_tablet_hid_report_descriptor)); ret = sizeof(qemu_tablet_hid_report_descriptor); } break; default: goto fail; } break; case GET_REPORT: if (s->kind == USB_MOUSE) ret = usb_mouse_poll(s, data, length); else if (s->kind == USB_TABLET) ret = usb_tablet_poll(s, data, length); break; case SET_IDLE: ret = 0; break; default: fail: ret = USB_RET_STALL; break; } return ret; } static int usb_mouse_handle_data(USBDevice *dev, USBPacket *p) { USBMouseState *s = (USBMouseState *)dev; int ret = 0; switch(p->pid) { case USB_TOKEN_IN: if (p->devep == 1) { if (s->kind == USB_MOUSE) ret = usb_mouse_poll(s, p->data, p->len); else if (s->kind == USB_TABLET) ret = usb_tablet_poll(s, p->data, p->len); if (!s->status_changed) ret = USB_RET_NAK; else s->status_changed = 0; } else { goto fail; } break; case USB_TOKEN_OUT: default: fail: ret = USB_RET_STALL; break; } return ret; } static void usb_mouse_handle_destroy(USBDevice *dev) { USBMouseState *s = (USBMouseState *)dev; qemu_remove_mouse_event_handler(s->eh_entry); qemu_free(s); } void usb_mouse_save(QEMUFile *f, void *opaque) { USBMouseState *s = (USBMouseState*)opaque; qemu_put_be32s(f, &s->dx); qemu_put_be32s(f, &s->dy); qemu_put_be32s(f, &s->dz); qemu_put_be32s(f, &s->buttons_state); qemu_put_be32s(f, &s->x); qemu_put_be32s(f, &s->y); qemu_put_be32s(f, &s->kind); qemu_put_be32s(f, &s->mouse_grabbed); qemu_put_be32s(f, &s->status_changed); } int usb_mouse_load(QEMUFile *f, void *opaque, int version_id) { USBMouseState *s = (USBMouseState*)opaque; if (version_id != 1) return -EINVAL; qemu_get_be32s(f, &s->dx); qemu_get_be32s(f, &s->dy); qemu_get_be32s(f, &s->dz); qemu_get_be32s(f, &s->buttons_state); qemu_get_be32s(f, &s->x); qemu_get_be32s(f, &s->y); qemu_get_be32s(f, &s->kind); qemu_get_be32s(f, &s->mouse_grabbed); qemu_get_be32s(f, &s->status_changed); if ( s->kind == USB_TABLET) { fprintf(logfile, "usb_mouse_load:add usb_tablet_event.\n"); qemu_add_mouse_event_handler(usb_tablet_event, s, 1, "QEMU USB Tablet"); } else if ( s->kind == USB_MOUSE) { fprintf(logfile, "usb_mouse_load:add usb_mouse_event.\n"); qemu_add_mouse_event_handler(usb_mouse_event, s, 0, "QEMU USB MOUSE"); } return 0; } USBDevice *usb_tablet_init(void) { USBMouseState *s; s = qemu_mallocz(sizeof(USBMouseState)); if (!s) return NULL; s->dev.speed = USB_SPEED_FULL; s->dev.handle_packet = usb_generic_handle_packet; s->dev.handle_reset = usb_mouse_handle_reset; s->dev.handle_control = usb_mouse_handle_control; s->dev.handle_data = usb_mouse_handle_data; s->dev.handle_destroy = usb_mouse_handle_destroy; s->kind = USB_TABLET; s->status_changed = 0; pstrcpy(s->dev.devname, sizeof(s->dev.devname), "QEMU USB Tablet"); register_savevm("USB tablet dev", 0, 1, usb_mouse_save, usb_mouse_load, s); return (USBDevice *)s; } USBDevice *usb_mouse_init(void) { USBMouseState *s; s = qemu_mallocz(sizeof(USBMouseState)); if (!s) return NULL; s->dev.speed = USB_SPEED_FULL; s->dev.handle_packet = usb_generic_handle_packet; s->dev.handle_reset = usb_mouse_handle_reset; s->dev.handle_control = usb_mouse_handle_control; s->dev.handle_data = usb_mouse_handle_data; s->dev.handle_destroy = usb_mouse_handle_destroy; s->kind = USB_MOUSE; s->status_changed = 0; pstrcpy(s->dev.devname, sizeof(s->dev.devname), "QEMU USB Mouse"); register_savevm("USB mouse dev", 0, 1, usb_mouse_save, usb_mouse_load, s); return (USBDevice *)s; } 447' href='#n447'>447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785
#
# Copyright (C) 2006-2016 OpenWrt.org
#
# This is free software, licensed under the GNU General Public License v2.
# See /LICENSE for more information.
#

include $(TOPDIR)/rules.mk
include $(INCLUDE_DIR)/kernel.mk

PKG_NAME:=iptables
PKG_VERSION:=1.8.7
PKG_RELEASE:=7

PKG_SOURCE_URL:=https://netfilter.org/projects/iptables/files
PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.bz2
PKG_HASH:=c109c96bb04998cd44156622d36f8e04b140701ec60531a10668cfdff5e8d8f0

PKG_FIXUP:=autoreconf
PKG_FLAGS:=nonshared

PKG_INSTALL:=1
PKG_BUILD_PARALLEL:=1
PKG_LICENSE:=GPL-2.0
PKG_CPE_ID:=cpe:/a:netfilter_core_team:iptables

include $(INCLUDE_DIR)/package.mk
ifeq ($(DUMP),)
  -include $(LINUX_DIR)/.config
  include $(INCLUDE_DIR)/netfilter.mk
  STAMP_CONFIGURED:=$(strip $(STAMP_CONFIGURED))_$(shell grep 'NETFILTER' $(LINUX_DIR)/.config | $(MKHASH) md5)
endif


define Package/iptables/Default
  SECTION:=net
  CATEGORY:=Network
  SUBMENU:=Firewall
  URL:=https://netfilter.org/
endef

define Package/iptables/Module
$(call Package/iptables/Default)
  DEPENDS:=+libxtables $(1)
endef

define Package/xtables-legacy
$(call Package/iptables/Default)
  TITLE:=IP firewall administration tool
  DEPENDS+= +kmod-ipt-core +libip4tc +IPV6:libip6tc +libiptext +IPV6:libiptext6 +libxtables
endef

define Package/iptables-zz-legacy
$(call Package/iptables/Default)
  TITLE:=IP firewall administration tool
  DEPENDS+= +xtables-legacy
  PROVIDES:=iptables iptables-legacy
  ALTERNATIVES:=\
    200:/usr/sbin/iptables:/usr/sbin/xtables-legacy-multi \
    200:/usr/sbin/iptables-restore:/usr/sbin/xtables-legacy-multi \
    200:/usr/sbin/iptables-save:/usr/sbin/xtables-legacy-multi
endef

define Package/iptables-zz-legacy/description
IP firewall administration tool.

 Matches:
  - icmp
  - tcp
  - udp
  - comment
  - conntrack
  - limit
  - mac
  - mark
  - multiport
  - set
  - state
  - time

 Targets:
  - ACCEPT
  - CT
  - DNAT
  - DROP
  - REJECT
  - FLOWOFFLOAD
  - LOG
  - MARK
  - MASQUERADE
  - REDIRECT
  - SET
  - SNAT
  - TCPMSS

 Tables:
  - filter
  - mangle
  - nat
  - raw

endef

define Package/xtables-nft
$(call Package/iptables/Default)
  TITLE:=IP firewall administration tool nft
  DEPENDS:=+libnftnl +libiptext +IPV6:libiptext6 +libiptext-nft +kmod-nft-compat
endef

define Package/arptables-nft
$(call Package/iptables/Default)
  DEPENDS:=+kmod-nft-arp +xtables-nft +kmod-arptables
  TITLE:=ARP firewall administration tool nft
  PROVIDES:=arptables
  ALTERNATIVES:=\
    300:/usr/sbin/arptables:/usr/sbin/xtables-nft-multi \
    300:/usr/sbin/arptables-restore:/usr/sbin/xtables-nft-multi \
    300:/usr/sbin/arptables-save:/usr/sbin/xtables-nft-multi
endef

define Package/ebtables-nft
$(call Package/iptables/Default)
  DEPENDS:=+kmod-nft-bridge +xtables-nft +kmod-ebtables
  TITLE:=Bridge firewall administration tool nft
  PROVIDES:=ebtables
  ALTERNATIVES:=\
    300:/usr/sbin/ebtables:/usr/sbin/xtables-nft-multi \
    300:/usr/sbin/ebtables-restore:/usr/sbin/xtables-nft-multi \
    300:/usr/sbin/ebtables-save:/usr/sbin/xtables-nft-multi
endef

define Package/iptables-nft
$(call Package/iptables/Default)
  TITLE:=IP firewall administration tool nft
  DEPENDS:=+kmod-ipt-core +xtables-nft
  PROVIDES:=iptables
  ALTERNATIVES:=\
    300:/usr/sbin/iptables:/usr/sbin/xtables-nft-multi \
    300:/usr/sbin/iptables-restore:/usr/sbin/xtables-nft-multi \
    300:/usr/sbin/iptables-save:/usr/sbin/xtables-nft-multi
endef

define Package/iptables-nft/description
Extra iptables nftables nft binaries.
  iptables-nft
  iptables-nft-restore
  iptables-nft-save
  iptables-translate
  iptables-restore-translate
endef

define Package/iptables-mod-conntrack-extra
$(call Package/iptables/Module, +kmod-ipt-conntrack-extra +kmod-ipt-raw)
  TITLE:=Extra connection tracking extensions
endef

define Package/iptables-mod-conntrack-extra/description
Extra iptables extensions for connection tracking.

 Matches:
  - connbytes
  - connlimit
  - connmark
  - recent
  - helper

 Targets:
  - CONNMARK

endef

define Package/iptables-mod-conntrack-label
$(call Package/iptables/Module, +kmod-ipt-conntrack-label @IPTABLES_CONNLABEL)
  TITLE:=Connection tracking labeling extension
  DEFAULT:=y if IPTABLES_CONNLABEL
endef

define Package/iptables-mod-conntrack-label/description
Match and set label(s) on connection tracking entries

 Matches:
  - connlabel

endef

define Package/iptables-mod-filter
$(call Package/iptables/Module, +kmod-ipt-filter)
  TITLE:=Content inspection extensions
endef

define Package/iptables-mod-filter/description
iptables extensions for packet content inspection.
Includes support for:

 Matches:
  - string
  - bpf

endef

define Package/iptables-mod-ipopt
$(call Package/iptables/Module, +kmod-ipt-ipopt)
  TITLE:=IP/Packet option extensions
endef

define Package/iptables-mod-ipopt/description
iptables extensions for matching/changing IP packet options.

 Matches:
  - dscp
  - ecn
  - length
  - statistic
  - tcpmss
  - unclean
  - hl

 Targets:
  - DSCP
  - CLASSIFY
  - ECN
  - HL

endef

define Package/iptables-mod-ipsec
$(call Package/iptables/Module, +kmod-ipt-ipsec)
  TITLE:=IPsec extensions
endef

define Package/iptables-mod-ipsec/description
iptables extensions for matching ipsec traffic.

 Matches:
  - ah
  - esp
  - policy

endef

define Package/iptables-mod-nat-extra
$(call Package/iptables/Module, +kmod-ipt-nat-extra)
  TITLE:=Extra NAT extensions
endef

define Package/iptables-mod-nat-extra/description
iptables extensions for extra NAT targets.

 Targets:
  - MIRROR
  - NETMAP
endef

define Package/iptables-mod-nflog
$(call Package/iptables/Module, +kmod-nfnetlink-log +kmod-ipt-nflog)
  TITLE:=Netfilter NFLOG target
endef

define Package/iptables-mod-nflog/description
 iptables extension for user-space logging via NFNETLINK.

 Includes:
  - libxt_NFLOG

endef

define Package/iptables-mod-trace
$(call Package/iptables/Module, +kmod-ipt-debug)
  TITLE:=Netfilter TRACE target
endef

define Package/iptables-mod-trace/description
 iptables extension for TRACE target

 Includes:
  - libxt_TRACE

endef


define Package/iptables-mod-nfqueue
$(call Package/iptables/Module, +kmod-nfnetlink-queue +kmod-ipt-nfqueue)
  TITLE:=Netfilter NFQUEUE target
endef

define Package/iptables-mod-nfqueue/description
 iptables extension for user-space queuing via NFNETLINK.

 Includes:
  - libxt_NFQUEUE

endef

define Package/iptables-mod-hashlimit
$(call Package/iptables/Module, +kmod-ipt-hashlimit)
  TITLE:=hashlimit matching
endef

define Package/iptables-mod-hashlimit/description
iptables extensions for hashlimit matching

 Matches:
  - hashlimit

endef

define Package/iptables-mod-rpfilter
$(call Package/iptables/Module, +kmod-ipt-rpfilter)
  TITLE:=rpfilter iptables extension
endef

define Package/iptables-mod-rpfilter/description
iptables extensions for reverse path filter test on a packet

 Matches:
  - rpfilter

endef

define Package/iptables-mod-iprange
$(call Package/iptables/Module, +kmod-ipt-iprange)
  TITLE:=IP range extension
endef

define Package/iptables-mod-iprange/description
iptables extensions for matching ip ranges.

 Matches:
  - iprange

endef

define Package/iptables-mod-cluster
$(call Package/iptables/Module, +kmod-ipt-cluster)
  TITLE:=Match cluster extension
endef

define Package/iptables-mod-cluster/description
iptables extensions for matching cluster.

 Netfilter (IPv4/IPv6) module for matching cluster
 This option allows you to build work-load-sharing clusters of
 network servers/stateful firewalls without having a dedicated
 load-balancing router/server/switch. Basically, this match returns
 true when the packet must be handled by this cluster node. Thus,
 all nodes see all packets and this match decides which node handles
 what packets. The work-load sharing algorithm is based on source
 address hashing.

 This module is usable for ipv4 and ipv6.

 If you select it, it enables kmod-ipt-cluster.

 see `iptables -m cluster --help` for more information.
endef

define Package/iptables-mod-clusterip
$(call Package/iptables/Module, +kmod-ipt-clusterip)
  TITLE:=Clusterip extension
endef

define Package/iptables-mod-clusterip/description
iptables extensions for CLUSTERIP.
 The CLUSTERIP target allows you to build load-balancing clusters of
 network servers without having a dedicated load-balancing
 router/server/switch.

 If you select it, it enables kmod-ipt-clusterip.

 see `iptables -j CLUSTERIP --help` for more information.
endef

define Package/iptables-mod-extra
$(call Package/iptables/Module, +kmod-ipt-extra)
  TITLE:=Other extra iptables extensions
endef

define Package/iptables-mod-extra/description
Other extra iptables extensions.

 Matches:
  - addrtype
  - condition
  - owner
  - pkttype
  - quota

endef

define Package/iptables-mod-physdev
$(call Package/iptables/Module, +kmod-ipt-physdev)
  TITLE:=physdev iptables extension
endef

define Package/iptables-mod-physdev/description
The iptables physdev match.
endef

define Package/iptables-mod-led
$(call Package/iptables/Module, +kmod-ipt-led)
  TITLE:=LED trigger iptables extension
endef

define Package/iptables-mod-led/description
iptables extension for triggering a LED.

 Targets:
  - LED

endef

define Package/iptables-mod-socket
$(call Package/iptables/Module, +kmod-ipt-socket)
  TITLE:=Socket match iptables extensions
endef

define Package/iptables-mod-socket/description
Socket match iptables extensions.

 Matches:
  - socket

endef

define Package/iptables-mod-tproxy
$(call Package/iptables/Module, +kmod-ipt-tproxy)
  TITLE:=Transparent proxy iptables extensions
endef

define Package/iptables-mod-tproxy/description
Transparent proxy iptables extensions.

 Targets:
  - TPROXY

endef

define Package/iptables-mod-tee
$(call Package/iptables/Module, +kmod-ipt-tee)
  TITLE:=TEE iptables extensions
endef

define Package/iptables-mod-tee/description
TEE iptables extensions.

 Targets:
  - TEE

endef

define Package/iptables-mod-u32
$(call Package/iptables/Module, +kmod-ipt-u32)
  TITLE:=U32 iptables extensions
endef

define Package/iptables-mod-u32/description
U32 iptables extensions.

 Matches:
  - u32

endef

define Package/iptables-mod-checksum
$(call Package/iptables/Module, +kmod-ipt-checksum)
  TITLE:=IP CHECKSUM target extension
endef

define Package/iptables-mod-checksum/description
iptables extension for the CHECKSUM calculation target
endef

define Package/ip6tables-zz-legacy
$(call Package/iptables/Default)
  DEPENDS:=@IPV6 +kmod-ip6tables +xtables-legacy
  CATEGORY:=Network
  TITLE:=IPv6 firewall administration tool
  PROVIDES:=ip6tables ip6tables-legacy
  ALTERNATIVES:=\
    200:/usr/sbin/ip6tables:/usr/sbin/xtables-legacy-multi \
    200:/usr/sbin/ip6tables-restore:/usr/sbin/xtables-legacy-multi \
    200:/usr/sbin/ip6tables-save:/usr/sbin/xtables-legacy-multi
endef

define Package/ip6tables-nft
$(call Package/iptables/Default)
  DEPENDS:=@IPV6 +kmod-ip6tables +xtables-nft
  TITLE:=IP firewall administration tool nft
  PROVIDES:=ip6tables
  ALTERNATIVES:=\
    300:/usr/sbin/ip6tables:/usr/sbin/xtables-nft-multi \
    300:/usr/sbin/ip6tables-restore:/usr/sbin/xtables-nft-multi \
    300:/usr/sbin/ip6tables-save:/usr/sbin/xtables-nft-multi
endef

define Package/ip6tables-nft/description
Extra ip6tables nftables nft binaries.
  ip6tables-nft
  ip6tables-nft-restore
  ip6tables-nft-save
  ip6tables-translate
  ip6tables-restore-translate
endef

define Package/ip6tables-extra
$(call Package/iptables/Default)
  DEPENDS:=+libxtables +kmod-ip6tables-extra
  TITLE:=IPv6 header matching modules
endef

define Package/ip6tables-extra/description
iptables header matching modules for IPv6
endef

define Package/ip6tables-mod-nat
$(call Package/iptables/Default)
  DEPENDS:=+libxtables +kmod-ipt-nat6
  TITLE:=IPv6 NAT extensions
endef

define Package/ip6tables-mod-nat/description
iptables extensions for IPv6-NAT targets.
endef

define Package/libip4tc
$(call Package/iptables/Default)
  SECTION:=libs
  CATEGORY:=Libraries
  TITLE:=IPv4 firewall - shared libiptc library
  ABI_VERSION:=2
endef

define Package/libip6tc
$(call Package/iptables/Default)
  SECTION:=libs
  CATEGORY:=Libraries
  TITLE:=IPv6 firewall - shared libiptc library
  ABI_VERSION:=2
endef

define Package/libiptext
 $(call Package/iptables/Default)
 SECTION:=libs
 CATEGORY:=Libraries
 TITLE:=IPv4 firewall - shared libiptext library
 ABI_VERSION:=0
 DEPENDS:=+libxtables
endef

define Package/libiptext6
 $(call Package/iptables/Default)
 SECTION:=libs
 CATEGORY:=Libraries
 TITLE:=IPv6 firewall - shared libiptext library
 ABI_VERSION:=0
 DEPENDS:=+libxtables
endef

define Package/libiptext-nft
 $(call Package/iptables/Default)
 SECTION:=libs
 CATEGORY:=Libraries
 TITLE:=IPv4/IPv6 firewall - shared libiptext nft library
 ABI_VERSION:=0
 DEPENDS:=+libxtables
endef

define Package/libxtables
 $(call Package/iptables/Default)
 SECTION:=libs
 CATEGORY:=Libraries
 TITLE:=IPv4/IPv6 firewall - shared xtables library
 MENU:=1
 ABI_VERSION:=12
 DEPENDS:=+IPTABLES_CONNLABEL:libnetfilter-conntrack
endef

define Package/libxtables/config
  config IPTABLES_CONNLABEL
	bool "Enable Connlabel support"
	default n
	help
		This enable connlabel support in iptables.
endef

TARGET_CPPFLAGS := \
	-I$(PKG_BUILD_DIR)/include \
	-I$(LINUX_DIR)/user_headers/include \
	$(TARGET_CPPFLAGS)

TARGET_CFLAGS += \
	-I$(PKG_BUILD_DIR)/include \
	-I$(LINUX_DIR)/user_headers/include \
	-ffunction-sections -fdata-sections \
	-DNO_LEGACY

TARGET_LDFLAGS += \
	-Wl,--gc-sections

CONFIGURE_ARGS += \
	--enable-shared \
	--enable-static \
	--enable-devel \
	--with-kernel="$(LINUX_DIR)/user_headers" \
	--with-xtlibdir=/usr/lib/iptables \
	--with-xt-lock-name=/var/run/xtables.lock \
	$(if $(CONFIG_IPTABLES_CONNLABEL),,--disable-connlabel) \
	$(if $(CONFIG_IPV6),,--disable-ipv6)

MAKE_FLAGS := \
	$(TARGET_CONFIGURE_OPTS) \
	COPT_FLAGS="$(TARGET_CFLAGS)" \
	KERNEL_DIR="$(LINUX_DIR)/user_headers/" PREFIX=/usr \
	KBUILD_OUTPUT="$(LINUX_DIR)" \
	BUILTIN_MODULES="$(patsubst ip6t_%,%,$(patsubst ipt_%,%,$(patsubst xt_%,%,$(IPT_BUILTIN) $(IPT_CONNTRACK-m) $(IPT_NAT-m))))"

ifneq ($(wildcard $(PKG_BUILD_DIR)/.config_*),$(subst .configured_,.config_,$(STAMP_CONFIGURED)))
  define Build/Configure/rebuild
	$(FIND) $(PKG_BUILD_DIR) -name \*.o -or -name \*.\?o -or -name \*.a | $(XARGS) rm -f
	rm -f $(PKG_BUILD_DIR)/.config_*
	rm -f $(PKG_BUILD_DIR)/.configured_*
	touch $(subst .configured_,.config_,$(STAMP_CONFIGURED))
  endef
endif

define Build/Configure
$(Build/Configure/rebuild)
$(Build/Configure/Default)
endef

define Build/InstallDev
	$(INSTALL_DIR) $(1)/usr/include
	$(INSTALL_DIR) $(1)/usr/include/iptables
	$(INSTALL_DIR) $(1)/usr/include/net/netfilter

	# XXX: iptables header fixup, some headers are not installed by iptables anymore
	$(CP) $(PKG_BUILD_DIR)/include/iptables/*.h $(1)/usr/include/iptables/
	$(CP) $(PKG_BUILD_DIR)/include/iptables.h $(1)/usr/include/
	$(CP) $(PKG_BUILD_DIR)/include/ip6tables.h $(1)/usr/include/
	$(CP) $(PKG_BUILD_DIR)/include/libipulog $(1)/usr/include/
	$(CP) $(PKG_BUILD_DIR)/include/libiptc $(1)/usr/include/

	$(CP) $(PKG_INSTALL_DIR)/usr/include/* $(1)/usr/include/
	$(INSTALL_DIR) $(1)/usr/lib
	$(CP) $(PKG_INSTALL_DIR)/usr/lib/libxtables.so* $(1)/usr/lib/
	$(CP) $(PKG_INSTALL_DIR)/usr/lib/libip*tc.so* $(1)/usr/lib/
	$(INSTALL_DIR) $(1)/usr/lib/pkgconfig
	$(CP) $(PKG_INSTALL_DIR)/usr/lib/pkgconfig/xtables.pc $(1)/usr/lib/pkgconfig/
	$(CP) $(PKG_INSTALL_DIR)/usr/lib/pkgconfig/libip*tc.pc $(1)/usr/lib/pkgconfig/

	# XXX: needed by firewall3
	$(CP) $(PKG_BUILD_DIR)/extensions/libiptext*.so $(1)/usr/lib/
endef

define Package/xtables-legacy/install
	$(INSTALL_DIR) $(1)/usr/sbin
	$(CP) $(PKG_INSTALL_DIR)/usr/sbin/xtables-legacy-multi $(1)/usr/sbin/
endef

define Package/iptables-zz-legacy/install
	$(INSTALL_DIR) $(1)/usr/sbin
	$(CP) $(PKG_INSTALL_DIR)/usr/sbin/iptables-legacy{,-restore,-save} $(1)/usr/sbin/
	$(INSTALL_DIR) $(1)/usr/lib/iptables
endef

define Package/xtables-nft/install
	$(INSTALL_DIR) $(1)/usr/sbin
	$(CP) $(PKG_INSTALL_DIR)/usr/sbin/xtables-nft-multi $(1)/usr/sbin/
endef

define Package/arptables-nft/install
	$(INSTALL_DIR) $(1)/usr/sbin
	$(CP) $(PKG_INSTALL_DIR)/usr/sbin/arptables-nft{,-restore,-save} $(1)/usr/sbin/
	$(INSTALL_DIR) $(1)/usr/lib/iptables
	$(CP) $(PKG_BUILD_DIR)/extensions/libarpt_*.so $(1)/usr/lib/iptables/
endef

define Package/ebtables-nft/install
	$(INSTALL_DIR) $(1)/usr/sbin
	$(CP) $(PKG_INSTALL_DIR)/usr/sbin/ebtables-nft{,-restore,-save} $(1)/usr/sbin/
	$(INSTALL_DIR) $(1)/usr/lib/iptables
	$(CP) $(PKG_BUILD_DIR)/extensions/libebt_*.so $(1)/usr/lib/iptables/
endef

define Package/iptables-nft/install
	$(INSTALL_DIR) $(1)/usr/sbin
	$(CP) $(PKG_INSTALL_DIR)/usr/sbin/iptables-nft{,-restore,-save} $(1)/usr/sbin/
	$(CP) $(PKG_INSTALL_DIR)/usr/sbin/iptables{,-restore}-translate $(1)/usr/sbin/
endef

define Package/ip6tables-zz-legacy/install
	$(INSTALL_DIR) $(1)/usr/sbin
	$(CP) $(PKG_INSTALL_DIR)/usr/sbin/ip6tables-legacy{,-restore,-save} $(1)/usr/sbin/
endef

define Package/ip6tables-nft/install
	$(INSTALL_DIR) $(1)/usr/sbin
	$(CP) $(PKG_INSTALL_DIR)/usr/sbin/ip6tables-nft{,-restore,-save} $(1)/usr/sbin/
	$(CP) $(PKG_INSTALL_DIR)/usr/sbin/ip6tables{,-restore}-translate $(1)/usr/sbin/
endef

define Package/libip4tc/install
	$(INSTALL_DIR) $(1)/usr/lib
	$(CP) $(PKG_INSTALL_DIR)/usr/lib/libip4tc.so.* $(1)/usr/lib/
endef

define Package/libip6tc/install
	$(INSTALL_DIR) $(1)/usr/lib
	$(CP) $(PKG_INSTALL_DIR)/usr/lib/libip6tc.so.* $(1)/usr/lib/
endef

define Package/libiptext/install
	$(INSTALL_DIR) $(1)/usr/lib
	$(CP) $(PKG_BUILD_DIR)/extensions/libiptext.so $(1)/usr/lib/
	$(CP) $(PKG_BUILD_DIR)/extensions/libiptext4.so $(1)/usr/lib/
endef

define Package/libiptext6/install
	$(INSTALL_DIR) $(1)/usr/lib
	$(CP) $(PKG_BUILD_DIR)/extensions/libiptext6.so $(1)/usr/lib/
endef

define Package/libiptext-nft/install
	$(INSTALL_DIR) $(1)/usr/lib
	$(CP) $(PKG_BUILD_DIR)/extensions/libiptext_*.so $(1)/usr/lib/
endef

define Package/libxtables/install
	$(INSTALL_DIR) $(1)/usr/lib
	$(CP) $(PKG_INSTALL_DIR)/usr/lib/libxtables.so.* $(1)/usr/lib/
endef

define BuildPlugin
  define Package/$(1)/install
	$(INSTALL_DIR) $$(1)/usr/lib/iptables
	for m in $(patsubst xt_%,ipt_%,$(2)) $(patsubst ipt_%,xt_%,$(2)) $(patsubst xt_%,ip6t_%,$(2)) $(patsubst ip6t_%,xt_%,$(2)); do \
		if [ -f $(PKG_INSTALL_DIR)/usr/lib/iptables/lib$$$$$$$${m}.so ]; then \
			$(CP) $(PKG_INSTALL_DIR)/usr/lib/iptables/lib$$$$$$$${m}.so $$(1)/usr/lib/iptables/ ; \
		fi; \
	done
	$(3)
  endef

  $$(eval $$(call BuildPackage,$(1)))
endef

$(eval $(call BuildPackage,libxtables))
$(eval $(call BuildPackage,libip4tc))
$(eval $(call BuildPackage,libip6tc))
$(eval $(call BuildPackage,libiptext))
$(eval $(call BuildPackage,libiptext6))
$(eval $(call BuildPackage,libiptext-nft))
$(eval $(call BuildPackage,xtables-legacy))
$(eval $(call BuildPackage,xtables-nft))
$(eval $(call BuildPackage,arptables-nft))
$(eval $(call BuildPackage,ebtables-nft))
$(eval $(call BuildPackage,iptables-nft))
$(eval $(call BuildPackage,iptables-zz-legacy))
$(eval $(call BuildPlugin,iptables-mod-conntrack-extra,$(IPT_CONNTRACK_EXTRA-m)))
$(eval $(call BuildPlugin,iptables-mod-conntrack-label,$(IPT_CONNTRACK_LABEL-m)))
$(eval $(call BuildPlugin,iptables-mod-extra,$(IPT_EXTRA-m)))
$(eval $(call BuildPlugin,iptables-mod-physdev,$(IPT_PHYSDEV-m)))
$(eval $(call BuildPlugin,iptables-mod-filter,$(IPT_FILTER-m)))
$(eval $(call BuildPlugin,iptables-mod-ipopt,$(IPT_IPOPT-m)))
$(eval $(call BuildPlugin,iptables-mod-ipsec,$(IPT_IPSEC-m)))
$(eval $(call BuildPlugin,iptables-mod-nat-extra,$(IPT_NAT_EXTRA-m)))
$(eval $(call BuildPlugin,iptables-mod-iprange,$(IPT_IPRANGE-m)))
$(eval $(call BuildPlugin,iptables-mod-cluster,$(IPT_CLUSTER-m)))
$(eval $(call BuildPlugin,iptables-mod-clusterip,$(IPT_CLUSTERIP-m)))
$(eval $(call BuildPlugin,iptables-mod-hashlimit,$(IPT_HASHLIMIT-m)))
$(eval $(call BuildPlugin,iptables-mod-rpfilter,$(IPT_RPFILTER-m)))
$(eval $(call BuildPlugin,iptables-mod-led,$(IPT_LED-m)))
$(eval $(call BuildPlugin,iptables-mod-socket,$(IPT_SOCKET-m)))
$(eval $(call BuildPlugin,iptables-mod-tproxy,$(IPT_TPROXY-m)))
$(eval $(call BuildPlugin,iptables-mod-tee,$(IPT_TEE-m)))
$(eval $(call BuildPlugin,iptables-mod-u32,$(IPT_U32-m)))
$(eval $(call BuildPlugin,iptables-mod-nflog,$(IPT_NFLOG-m)))
$(eval $(call BuildPlugin,iptables-mod-trace,$(IPT_DEBUG-m)))
$(eval $(call BuildPlugin,iptables-mod-nfqueue,$(IPT_NFQUEUE-m)))
$(eval $(call BuildPlugin,iptables-mod-checksum,$(IPT_CHECKSUM-m)))
$(eval $(call BuildPackage,ip6tables-nft))
$(eval $(call BuildPackage,ip6tables-zz-legacy))
$(eval $(call BuildPlugin,ip6tables-extra,$(IPT_IPV6_EXTRA-m)))
$(eval $(call BuildPlugin,ip6tables-mod-nat,$(IPT_NAT6-m)))