From bdb3ada9ccaf35075bd8405845893cd35e07c291 Mon Sep 17 00:00:00 2001
From: Felix Fietkau <nbd@openwrt.org>
Date: Sat, 26 Jun 2010 20:42:18 +0000
Subject: remove generic linux 2.4 support

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@21948 3c298f89-4303-0410-b956-a3cf2f4a3e73
---
 .../patches/109-ipsec_nat_traversal.patch          | 141 ---------------------
 1 file changed, 141 deletions(-)
 delete mode 100644 target/linux/generic-2.4/patches/109-ipsec_nat_traversal.patch

(limited to 'target/linux/generic-2.4/patches/109-ipsec_nat_traversal.patch')

diff --git a/target/linux/generic-2.4/patches/109-ipsec_nat_traversal.patch b/target/linux/generic-2.4/patches/109-ipsec_nat_traversal.patch
deleted file mode 100644
index 51981b8afc..0000000000
--- a/target/linux/generic-2.4/patches/109-ipsec_nat_traversal.patch
+++ /dev/null
@@ -1,141 +0,0 @@
-packaging/utils/nattpatch 2.4
---- a/include/net/sock.h
-+++ b/include/net/sock.h
-@@ -488,7 +488,13 @@ struct tcp_opt {
- 	} 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 @@ struct sock {
- #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;
- 
---- a/net/Config.in
-+++ b/net/Config.in
-@@ -104,4 +104,6 @@ comment 'Network testing'
- dep_tristate 'Packet Generator (USE WITH CAUTION)' CONFIG_NET_PKTGEN $CONFIG_PROC_FS
- endmenu
- 
-+bool 'IPSEC NAT-Traversal' CONFIG_IPSEC_NAT_TRAVERSAL
-+
- endmenu
---- a/net/ipv4/udp.c
-+++ b/net/ipv4/udp.c
-@@ -860,6 +860,9 @@ static void udp_close(struct sock *sk, l
- 
- 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.
- 	 */
-@@ -877,6 +880,40 @@ static int udp_queue_rcv_skb(struct sock
- 	}
- #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);
-@@ -1100,13 +1137,49 @@ out:
- 	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,
-- 
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