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mirror of git://projects.qi-hardware.com/openwrt-xburst.git synced 2024-11-10 17:24:05 +02:00

add ipsec nat traversal patch

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@678 3c298f89-4303-0410-b956-a3cf2f4a3e73
This commit is contained in:
nbd 2005-04-18 21:28:26 +00:00
parent 121d0733ab
commit ed487fe963
2 changed files with 218 additions and 1 deletions

View File

@ -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,

View File

@ -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