1 // SPDX-License-Identifier: GPL-2.0-or-later
4 * Copyright (C) 2015 Red Hat, Inc. All Rights Reserved.
5 * Written by David Howells (dhowells@redhat.com)
9 #include <linux/ipv6.h>
10 #include <linux/udp.h>
11 #include "ar-internal.h"
14 * Fill out a peer address from a socket buffer containing a packet.
16 int rxrpc_extract_addr_from_skb(struct sockaddr_rxrpc *srx, struct sk_buff *skb)
18 memset(srx, 0, sizeof(*srx));
20 switch (ntohs(skb->protocol)) {
22 srx->transport_type = SOCK_DGRAM;
23 srx->transport_len = sizeof(srx->transport.sin);
24 srx->transport.sin.sin_family = AF_INET;
25 srx->transport.sin.sin_port = udp_hdr(skb)->source;
26 srx->transport.sin.sin_addr.s_addr = ip_hdr(skb)->saddr;
29 #ifdef CONFIG_AF_RXRPC_IPV6
31 srx->transport_type = SOCK_DGRAM;
32 srx->transport_len = sizeof(srx->transport.sin6);
33 srx->transport.sin6.sin6_family = AF_INET6;
34 srx->transport.sin6.sin6_port = udp_hdr(skb)->source;
35 srx->transport.sin6.sin6_addr = ipv6_hdr(skb)->saddr;
40 pr_warn_ratelimited("AF_RXRPC: Unknown eth protocol %u\n",
41 ntohs(skb->protocol));