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net/rxrpc/utils.c
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// SPDX-License-Identifier: GPL-2.0-or-later |
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/* Utility routines * * Copyright (C) 2015 Red Hat, Inc. All Rights Reserved. * Written by David Howells (dhowells@redhat.com) |
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*/ #include <linux/ip.h> |
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#include <linux/ipv6.h> |
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#include <linux/udp.h> #include "ar-internal.h" /* |
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* Fill out a peer address from a socket buffer containing a packet. */ |
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int rxrpc_extract_addr_from_skb(struct sockaddr_rxrpc *srx, struct sk_buff *skb) |
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{ memset(srx, 0, sizeof(*srx)); switch (ntohs(skb->protocol)) { case ETH_P_IP: |
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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; |
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return 0; |
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#ifdef CONFIG_AF_RXRPC_IPV6 |
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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; |
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#endif |
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default: pr_warn_ratelimited("AF_RXRPC: Unknown eth protocol %u ", ntohs(skb->protocol)); return -EAFNOSUPPORT; } } |