ASR_BASE
Change-Id: Icf3719cc0afe3eeb3edc7fa80a2eb5199ca9dda1
diff --git a/marvell/linux/net/rxrpc/utils.c b/marvell/linux/net/rxrpc/utils.c
new file mode 100644
index 0000000..2e4b9d8
--- /dev/null
+++ b/marvell/linux/net/rxrpc/utils.c
@@ -0,0 +1,44 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/* Utility routines
+ *
+ * Copyright (C) 2015 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ */
+
+#include <linux/ip.h>
+#include <linux/ipv6.h>
+#include <linux/udp.h>
+#include "ar-internal.h"
+
+/*
+ * Fill out a peer address from a socket buffer containing a packet.
+ */
+int rxrpc_extract_addr_from_skb(struct sockaddr_rxrpc *srx, struct sk_buff *skb)
+{
+ memset(srx, 0, sizeof(*srx));
+
+ switch (ntohs(skb->protocol)) {
+ case ETH_P_IP:
+ srx->transport_type = SOCK_DGRAM;
+ srx->transport_len = sizeof(srx->transport.sin);
+ srx->transport.sin.sin_family = AF_INET;
+ srx->transport.sin.sin_port = udp_hdr(skb)->source;
+ srx->transport.sin.sin_addr.s_addr = ip_hdr(skb)->saddr;
+ return 0;
+
+#ifdef CONFIG_AF_RXRPC_IPV6
+ case ETH_P_IPV6:
+ srx->transport_type = SOCK_DGRAM;
+ srx->transport_len = sizeof(srx->transport.sin6);
+ srx->transport.sin6.sin6_family = AF_INET6;
+ srx->transport.sin6.sin6_port = udp_hdr(skb)->source;
+ srx->transport.sin6.sin6_addr = ipv6_hdr(skb)->saddr;
+ return 0;
+#endif
+
+ default:
+ pr_warn_ratelimited("AF_RXRPC: Unknown eth protocol %u\n",
+ ntohs(skb->protocol));
+ return -EAFNOSUPPORT;
+ }
+}