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-rw-r--r--package/linux/kernel-patches/311-ipsec-nat-traversal140
-rw-r--r--package/linux/linux.config79
2 files changed, 218 insertions, 1 deletions
diff --git a/package/linux/kernel-patches/311-ipsec-nat-traversal b/package/linux/kernel-patches/311-ipsec-nat-traversal
new file mode 100644
index 000000000..fc4c29d27
--- /dev/null
+++ b/package/linux/kernel-patches/311-ipsec-nat-traversal
@@ -0,0 +1,140 @@
+packaging/utils/nattpatch 2.4
+--- linux/include/net/sock.h 2002/02/06 15:25:10 1.1
++++ linux/include/net/sock.h 2002/05/22 12:14:56
+@@ -488,7 +488,13 @@
+ } bictcp;
+ };
+
+-
++#if 1
++#define UDP_OPT_IN_SOCK 1
++struct udp_opt {
++ __u32 esp_in_udp;
++};
++#endif
++
+ /*
+ * This structure really needs to be cleaned up.
+ * Most of it is for TCP, and not used by any of
+@@ -655,6 +661,9 @@
+ #if defined(CONFIG_SPX) || defined (CONFIG_SPX_MODULE)
+ struct spx_opt af_spx;
+ #endif /* CONFIG_SPX */
++#if 1
++ struct udp_opt af_udp;
++#endif
+
+ } tp_pinfo;
+
+--- linux/net/Config.in.orig Fri Feb 9 14:34:13 2001
++++ linux/net/Config.in Thu Feb 22 19:40:08 2001
+@@ -88,3 +88,5 @@
+ endmenu
+
++bool 'IPSEC NAT-Traversal' CONFIG_IPSEC_NAT_TRAVERSAL
++
+ endmenu
+--- linux/net/ipv4/udp.c.1 Wed Jan 28 15:57:05 2004
++++ linux/net/ipv4/udp.c Wed Jan 28 15:58:56 2004
+@@ -787,6 +787,9 @@
+
+ static int udp_queue_rcv_skb(struct sock * sk, struct sk_buff *skb)
+ {
++#ifdef CONFIG_IPSEC_NAT_TRAVERSAL
++ struct udp_opt *tp = &(sk->tp_pinfo.af_udp);
++#endif
+ /*
+ * Charge it to the socket, dropping if the queue is full.
+ */
+@@ -804,6 +807,40 @@
+ }
+ #endif
+
++#ifdef CONFIG_IPSEC_NAT_TRAVERSAL
++ if (tp->esp_in_udp) {
++ /*
++ * Set skb->sk and xmit packet to ipsec_rcv.
++ *
++ * If ret != 0, ipsec_rcv refused the packet (not ESPinUDP),
++ * restore skb->sk and fall back to sock_queue_rcv_skb
++ */
++ struct inet_protocol *esp = NULL;
++
++#if defined(CONFIG_KLIPS) && !defined(CONFIG_KLIPS_MODULE)
++ /* optomize only when we know it is statically linked */
++ extern struct inet_protocol esp_protocol;
++ esp = &esp_protocol;
++#else
++ for (esp = (struct inet_protocol *)inet_protos[IPPROTO_ESP & (MAX_INET_PROTOS - 1)];
++ (esp) && (esp->protocol != IPPROTO_ESP);
++ esp = esp->next);
++#endif
++
++ if (esp && esp->handler) {
++ struct sock *sav_sk = skb->sk;
++ skb->sk = sk;
++ if (esp->handler(skb) == 0) {
++ skb->sk = sav_sk;
++ /*not sure we might count ESPinUDP as UDP...*/
++ UDP_INC_STATS_BH(UdpInDatagrams);
++ return 0;
++ }
++ skb->sk = sav_sk;
++ }
++ }
++#endif
++
+ if (sock_queue_rcv_skb(sk,skb)<0) {
+ UDP_INC_STATS_BH(UdpInErrors);
+ IP_INC_STATS_BH(IpInDiscards);
+@@ -1027,13 +1064,49 @@
+ return len;
+ }
+
++static int udp_setsockopt(struct sock *sk, int level, int optname,
++ char *optval, int optlen)
++{
++ struct udp_opt *tp = &(sk->tp_pinfo.af_udp);
++ int val;
++ int err = 0;
++
++ if (level != SOL_UDP)
++ return ip_setsockopt(sk, level, optname, optval, optlen);
++
++ if(optlen<sizeof(int))
++ return -EINVAL;
++
++ if (get_user(val, (int *)optval))
++ return -EFAULT;
++
++ lock_sock(sk);
++
++ switch(optname) {
++#ifdef CONFIG_IPSEC_NAT_TRAVERSAL
++#ifndef UDP_ESPINUDP
++#define UDP_ESPINUDP 100
++#endif
++ case UDP_ESPINUDP:
++ tp->esp_in_udp = val;
++ break;
++#endif
++ default:
++ err = -ENOPROTOOPT;
++ break;
++ }
++
++ release_sock(sk);
++ return err;
++}
++
+ struct proto udp_prot = {
+ name: "UDP",
+ close: udp_close,
+ connect: udp_connect,
+ disconnect: udp_disconnect,
+ ioctl: udp_ioctl,
+- setsockopt: ip_setsockopt,
++ setsockopt: udp_setsockopt,
+ getsockopt: ip_getsockopt,
+ sendmsg: udp_sendmsg,
+ recvmsg: udp_recvmsg,
diff --git a/package/linux/linux.config b/package/linux/linux.config
index 9a7d190d2..d09d69f69 100644
--- a/package/linux/linux.config
+++ b/package/linux/linux.config
@@ -1,5 +1,5 @@
#
-# Automatically generated by make menuconfig: don't edit
+# Automatically generated make config: don't edit
#
CONFIG_MIPS=y
CONFIG_MIPS32=y
@@ -181,6 +181,10 @@ CONFIG_MTD_PARTITIONS=y
# CONFIG_MTD_CONCAT is not set
# CONFIG_MTD_REDBOOT_PARTS is not set
# CONFIG_MTD_CMDLINE_PARTS is not set
+
+#
+# User Modules And Translation Layers
+#
CONFIG_MTD_CHAR=y
CONFIG_MTD_BLOCK=y
# CONFIG_FTL is not set
@@ -246,6 +250,10 @@ CONFIG_MTD_BCM947XX=y
# CONFIG_MTD_SLRAM is not set
# CONFIG_MTD_MTDRAM is not set
# CONFIG_MTD_BLKMTD is not set
+
+#
+# Disk-On-Chip Device Drivers
+#
# CONFIG_MTD_DOC1000 is not set
# CONFIG_MTD_DOC2000 is not set
# CONFIG_MTD_DOC2001 is not set
@@ -432,6 +440,10 @@ CONFIG_IP6_NF_TARGET_MARK=m
# CONFIG_IP_SCTP is not set
# CONFIG_ATM is not set
CONFIG_VLAN_8021Q=y
+
+#
+#
+#
# CONFIG_IPX is not set
# CONFIG_ATALK is not set
# CONFIG_DECNET is not set
@@ -498,6 +510,7 @@ CONFIG_NET_CLS_POLICE=y
# Network testing
#
# CONFIG_NET_PKTGEN is not set
+CONFIG_IPSEC_NAT_TRAVERSAL=y
#
# Telephony Support
@@ -516,12 +529,20 @@ CONFIG_NET_CLS_POLICE=y
# SCSI support
#
CONFIG_SCSI=m
+
+#
+# SCSI support type (disk, tape, CD-ROM)
+#
CONFIG_BLK_DEV_SD=m
CONFIG_SD_EXTRA_DEVS=5
# CONFIG_CHR_DEV_ST is not set
# CONFIG_CHR_DEV_OSST is not set
# CONFIG_BLK_DEV_SR is not set
CONFIG_CHR_DEV_SG=m
+
+#
+# Some SCSI devices (e.g. CD jukebox) support multiple LUNs
+#
# CONFIG_SCSI_DEBUG_QUEUES is not set
# CONFIG_SCSI_MULTI_LUN is not set
# CONFIG_SCSI_CONSTANTS is not set
@@ -741,6 +762,10 @@ CONFIG_NET_RADIO=y
# CONFIG_PLX_HERMES is not set
# CONFIG_TMD_HERMES is not set
# CONFIG_PCI_HERMES is not set
+
+#
+# Prism54 PCI/PCMCIA GT/Duette Driver - 802.11(a/b/g)
+#
# CONFIG_PRISM54 is not set
CONFIG_NET_WIRELESS=y
@@ -812,6 +837,14 @@ CONFIG_PRINTER=m
# Joysticks
#
# CONFIG_INPUT_GAMEPORT is not set
+
+#
+# Input core support is needed for gameports
+#
+
+#
+# Input core support is needed for joysticks
+#
# CONFIG_QIC02_TAPE is not set
# CONFIG_IPMI_HANDLER is not set
# CONFIG_IPMI_PANIC_EVENT is not set
@@ -1041,12 +1074,24 @@ CONFIG_NLS_DEFAULT="iso8859-1"
#
CONFIG_USB=m
# CONFIG_USB_DEBUG is not set
+
+#
+# Miscellaneous USB options
+#
CONFIG_USB_DEVICEFS=y
# CONFIG_USB_BANDWIDTH is not set
+
+#
+# USB Host Controller Drivers
+#
CONFIG_USB_EHCI_HCD=m
# CONFIG_USB_UHCI is not set
CONFIG_USB_UHCI_ALT=m
CONFIG_USB_OHCI=m
+
+#
+# USB Device Class drivers
+#
# CONFIG_USB_AUDIO is not set
# CONFIG_USB_EMI26 is not set
# CONFIG_USB_BLUETOOTH is not set
@@ -1063,7 +1108,15 @@ CONFIG_USB_STORAGE_SDDR55=y
CONFIG_USB_STORAGE_JUMPSHOT=y
# CONFIG_USB_ACM is not set
CONFIG_USB_PRINTER=m
+
+#
+# USB Human Interface Devices (HID)
+#
# CONFIG_USB_HID is not set
+
+#
+# Input core support is needed for USB HID input layer or HIDBP support
+#
# CONFIG_USB_HIDINPUT is not set
# CONFIG_USB_HIDDEV is not set
# CONFIG_USB_KBD is not set
@@ -1072,23 +1125,47 @@ CONFIG_USB_PRINTER=m
# CONFIG_USB_WACOM is not set
# CONFIG_USB_KBTAB is not set
# CONFIG_USB_POWERMATE is not set
+
+#
+# USB Imaging devices
+#
# CONFIG_USB_DC2XX is not set
# CONFIG_USB_MDC800 is not set
# CONFIG_USB_SCANNER is not set
# CONFIG_USB_MICROTEK is not set
# CONFIG_USB_HPUSBSCSI is not set
+
+#
+# USB Multimedia devices
+#
+
+#
+# Video4Linux support is needed for USB Multimedia device support
+#
+
+#
+# USB Network adaptors
+#
# CONFIG_USB_PEGASUS is not set
# CONFIG_USB_RTL8150 is not set
# CONFIG_USB_KAWETH is not set
# CONFIG_USB_CATC is not set
# CONFIG_USB_CDCETHER is not set
# CONFIG_USB_USBNET is not set
+
+#
+# USB port drivers
+#
# CONFIG_USB_USS720 is not set
#
# USB Serial Converter support
#
# CONFIG_USB_SERIAL is not set
+
+#
+# USB Miscellaneous drivers
+#
# CONFIG_USB_RIO500 is not set
# CONFIG_USB_AUERSWALD is not set
# CONFIG_USB_TIGL is not set