This patch was copied from
http://www.spinics.net/lists/netfilter/msg56704.html .
---
.../patches/100-udp_checksum_computation.patch | 95 ++++++++++++++++++++++
1 file changed, 95 insertions(+)
create mode 100644
package/libs/libnetfilter-queue/patches/100-udp_checksum_computation.patch
diff --git
a/package/libs/libnetfilter-queue/patches/100-udp_checksum_computation.patch
b/package/libs/libnetfilter-queue/patches/100-udp_checksum_computation.patch
new file mode 100644
index 0000000..9939b83
--- /dev/null
+++ b/package/libs/libnetfilter-queue/patches/100-udp_checksum_computation.patch
@@ -0,0 +1,95 @@
+--- libnetfilter_queue-1.0.2.orig/src/extra/checksum.c
++++ libnetfilter_queue-1.0.2/src/extra/checksum.c
+@@ -35,7 +35,7 @@ uint16_t checksum(uint32_t sum, uint16_t
+ return (uint16_t)(~sum);
+ }
+
+-uint16_t checksum_tcpudp_ipv4(struct iphdr *iph)
++uint16_t checksum_tcpudp_ipv4(struct iphdr *iph, uint16_t protocol_id)
+ {
+ uint32_t sum = 0;
+ uint32_t iph_len = iph->ihl*4;
+@@ -46,13 +46,13 @@ uint16_t checksum_tcpudp_ipv4(struct iph
+ sum += (iph->saddr) & 0xFFFF;
+ sum += (iph->daddr >> 16) & 0xFFFF;
+ sum += (iph->daddr) & 0xFFFF;
+- sum += htons(IPPROTO_TCP);
++ sum += htons(protocol_id);
+ sum += htons(len);
+
+ return checksum(sum, (uint16_t *)payload, len);
+ }
+
+-uint16_t checksum_tcpudp_ipv6(struct ip6_hdr *ip6h, void *transport_hdr)
++uint16_t checksum_tcpudp_ipv6(struct ip6_hdr *ip6h, void *transport_hdr,
uint16_t protocol_id)
+ {
+ uint32_t sum = 0;
+ uint32_t hdr_len = (uint32_t *)transport_hdr - (uint32_t *)ip6h;
+@@ -68,7 +68,7 @@ uint16_t checksum_tcpudp_ipv6(struct ip6
+ sum += (ip6h->ip6_dst.s6_addr16[i] >> 16) & 0xFFFF;
+ sum += (ip6h->ip6_dst.s6_addr16[i]) & 0xFFFF;
+ }
+- sum += htons(IPPROTO_TCP);
++ sum += htons(protocol_id);
+ sum += htons(ip6h->ip6_plen);
+
+ return checksum(sum, (uint16_t *)payload, len);
+Index: libnetfilter_queue-1.0.2/src/extra/tcp.c
+===================================================================
+--- libnetfilter_queue-1.0.2.orig/src/extra/tcp.c
++++ libnetfilter_queue-1.0.2/src/extra/tcp.c
+@@ -91,7 +91,7 @@ nfq_tcp_compute_checksum_ipv4(struct tcp
+ {
+ /* checksum field in header needs to be zero for calculation. */
+ tcph->check = 0;
+- tcph->check = checksum_tcpudp_ipv4(iph);
++ tcph->check = checksum_tcpudp_ipv4(iph, IPPROTO_TCP);
+ }
+ EXPORT_SYMBOL(nfq_tcp_compute_checksum_ipv4);
+
+@@ -105,7 +105,7 @@ nfq_tcp_compute_checksum_ipv6(struct tcp
+ {
+ /* checksum field in header needs to be zero for calculation. */
+ tcph->check = 0;
+- tcph->check = checksum_tcpudp_ipv6(ip6h, tcph);
++ tcph->check = checksum_tcpudp_ipv6(ip6h, tcph, IPPROTO_TCP);
+ }
+ EXPORT_SYMBOL(nfq_tcp_compute_checksum_ipv6);
+
+Index: libnetfilter_queue-1.0.2/src/extra/udp.c
+===================================================================
+--- libnetfilter_queue-1.0.2.orig/src/extra/udp.c
++++ libnetfilter_queue-1.0.2/src/extra/udp.c
+@@ -91,7 +91,7 @@ nfq_udp_compute_checksum_ipv4(struct udp
+ {
+ /* checksum field in header needs to be zero for calculation. */
+ udph->check = 0;
+- udph->check = checksum_tcpudp_ipv4(iph);
++ udph->check = checksum_tcpudp_ipv4(iph, IPPROTO_UDP);
+ }
+ EXPORT_SYMBOL(nfq_udp_compute_checksum_ipv4);
+
+@@ -110,7 +110,7 @@ nfq_udp_compute_checksum_ipv6(struct udp
+ {
+ /* checksum field in header needs to be zero for calculation. */
+ udph->check = 0;
+- udph->check = checksum_tcpudp_ipv6(ip6h, udph);
++ udph->check = checksum_tcpudp_ipv6(ip6h, udph, IPPROTO_UDP);
+ }
+ EXPORT_SYMBOL(nfq_udp_compute_checksum_ipv6);
+
+Index: libnetfilter_queue-1.0.2/src/internal.h
+===================================================================
+--- libnetfilter_queue-1.0.2.orig/src/internal.h
++++ libnetfilter_queue-1.0.2/src/internal.h
+@@ -13,8 +13,8 @@ struct iphdr;
+ struct ip6_hdr;
+
+ uint16_t checksum(uint32_t sum, uint16_t *buf, int size);
+-uint16_t checksum_tcpudp_ipv4(struct iphdr *iph);
+-uint16_t checksum_tcpudp_ipv6(struct ip6_hdr *ip6h, void *transport_hdr);
++uint16_t checksum_tcpudp_ipv4(struct iphdr *iph, uint16_t protocol_id);
++uint16_t checksum_tcpudp_ipv6(struct ip6_hdr *ip6h, void *transport_hdr,
uint16_t protocol_id);
+
+ struct pkt_buff {
+ uint8_t *mac_header;
--
1.7.12.4
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