ASR_BASE
Change-Id: Icf3719cc0afe3eeb3edc7fa80a2eb5199ca9dda1
diff --git a/marvell/linux/net/ipv6/ip6_udp_tunnel.c b/marvell/linux/net/ipv6/ip6_udp_tunnel.c
new file mode 100644
index 0000000..58956a6
--- /dev/null
+++ b/marvell/linux/net/ipv6/ip6_udp_tunnel.c
@@ -0,0 +1,119 @@
+// SPDX-License-Identifier: GPL-2.0-only
+#include <linux/module.h>
+#include <linux/errno.h>
+#include <linux/socket.h>
+#include <linux/udp.h>
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/in6.h>
+#include <net/udp.h>
+#include <net/udp_tunnel.h>
+#include <net/net_namespace.h>
+#include <net/netns/generic.h>
+#include <net/ip6_tunnel.h>
+#include <net/ip6_checksum.h>
+
+int udp_sock_create6(struct net *net, struct udp_port_cfg *cfg,
+ struct socket **sockp)
+{
+ struct sockaddr_in6 udp6_addr = {};
+ int err;
+ struct socket *sock = NULL;
+
+ err = sock_create_kern(net, AF_INET6, SOCK_DGRAM, 0, &sock);
+ if (err < 0)
+ goto error;
+
+ if (cfg->ipv6_v6only) {
+ int val = 1;
+
+ err = kernel_setsockopt(sock, IPPROTO_IPV6, IPV6_V6ONLY,
+ (char *) &val, sizeof(val));
+ if (err < 0)
+ goto error;
+ }
+ if (cfg->bind_ifindex) {
+ err = kernel_setsockopt(sock, SOL_SOCKET, SO_BINDTOIFINDEX,
+ (void *)&cfg->bind_ifindex,
+ sizeof(cfg->bind_ifindex));
+ if (err < 0)
+ goto error;
+ }
+
+ udp6_addr.sin6_family = AF_INET6;
+ memcpy(&udp6_addr.sin6_addr, &cfg->local_ip6,
+ sizeof(udp6_addr.sin6_addr));
+ udp6_addr.sin6_port = cfg->local_udp_port;
+ err = kernel_bind(sock, (struct sockaddr *)&udp6_addr,
+ sizeof(udp6_addr));
+ if (err < 0)
+ goto error;
+
+ if (cfg->peer_udp_port) {
+ memset(&udp6_addr, 0, sizeof(udp6_addr));
+ udp6_addr.sin6_family = AF_INET6;
+ memcpy(&udp6_addr.sin6_addr, &cfg->peer_ip6,
+ sizeof(udp6_addr.sin6_addr));
+ udp6_addr.sin6_port = cfg->peer_udp_port;
+ err = kernel_connect(sock,
+ (struct sockaddr *)&udp6_addr,
+ sizeof(udp6_addr), 0);
+ }
+ if (err < 0)
+ goto error;
+
+ udp_set_no_check6_tx(sock->sk, !cfg->use_udp6_tx_checksums);
+ udp_set_no_check6_rx(sock->sk, !cfg->use_udp6_rx_checksums);
+
+ *sockp = sock;
+ return 0;
+
+error:
+ if (sock) {
+ kernel_sock_shutdown(sock, SHUT_RDWR);
+ sock_release(sock);
+ }
+ *sockp = NULL;
+ return err;
+}
+EXPORT_SYMBOL_GPL(udp_sock_create6);
+
+int udp_tunnel6_xmit_skb(struct dst_entry *dst, struct sock *sk,
+ struct sk_buff *skb,
+ struct net_device *dev, struct in6_addr *saddr,
+ struct in6_addr *daddr,
+ __u8 prio, __u8 ttl, __be32 label,
+ __be16 src_port, __be16 dst_port, bool nocheck)
+{
+ struct udphdr *uh;
+ struct ipv6hdr *ip6h;
+
+ __skb_push(skb, sizeof(*uh));
+ skb_reset_transport_header(skb);
+ uh = udp_hdr(skb);
+
+ uh->dest = dst_port;
+ uh->source = src_port;
+
+ uh->len = htons(skb->len);
+
+ skb_dst_set(skb, dst);
+
+ udp6_set_csum(nocheck, skb, saddr, daddr, skb->len);
+
+ __skb_push(skb, sizeof(*ip6h));
+ skb_reset_network_header(skb);
+ ip6h = ipv6_hdr(skb);
+ ip6_flow_hdr(ip6h, prio, label);
+ ip6h->payload_len = htons(skb->len);
+ ip6h->nexthdr = IPPROTO_UDP;
+ ip6h->hop_limit = ttl;
+ ip6h->daddr = *daddr;
+ ip6h->saddr = *saddr;
+
+ ip6tunnel_xmit(sk, skb, dev);
+ return 0;
+}
+EXPORT_SYMBOL_GPL(udp_tunnel6_xmit_skb);
+
+MODULE_LICENSE("GPL");