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4b261c75a9
We currently don't report IPV6_RECVPKTINFO in cmsg access ancillary data for IPv4 datagrams on IPv6 sockets. This patch splits the ip6_datagram_recv_ctl into two functions, one which handles both protocol families, AF_INET and AF_INET6, while the ip6_datagram_recv_specific_ctl only handles IPv6 cmsg data. ip6_datagram_recv_*_ctl never reported back any errors, so we can make them return void. Also provide a helper for protocols which don't offer dual personality to further use ip6_datagram_recv_ctl, which is exported to modules. I needed to shuffle the code for ping around a bit to make it easier to implement dual personality for ping ipv6 sockets in future. Reported-by: Gert Doering <gert@space.net> Signed-off-by: Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by: David S. Miller <davem@davemloft.net>
64 lines
1.8 KiB
C
64 lines
1.8 KiB
C
#ifndef _TRANSP_V6_H
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#define _TRANSP_V6_H
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#include <net/checksum.h>
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/* IPv6 transport protocols */
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extern struct proto rawv6_prot;
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extern struct proto udpv6_prot;
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extern struct proto udplitev6_prot;
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extern struct proto tcpv6_prot;
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extern struct proto pingv6_prot;
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struct flowi6;
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/* extension headers */
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int ipv6_exthdrs_init(void);
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void ipv6_exthdrs_exit(void);
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int ipv6_frag_init(void);
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void ipv6_frag_exit(void);
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/* transport protocols */
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int pingv6_init(void);
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void pingv6_exit(void);
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int rawv6_init(void);
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void rawv6_exit(void);
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int udpv6_init(void);
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void udpv6_exit(void);
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int udplitev6_init(void);
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void udplitev6_exit(void);
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int tcpv6_init(void);
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void tcpv6_exit(void);
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int udpv6_connect(struct sock *sk, struct sockaddr *uaddr, int addr_len);
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/* this does all the common and the specific ctl work */
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void ip6_datagram_recv_ctl(struct sock *sk, struct msghdr *msg,
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struct sk_buff *skb);
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void ip6_datagram_recv_common_ctl(struct sock *sk, struct msghdr *msg,
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struct sk_buff *skb);
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void ip6_datagram_recv_specific_ctl(struct sock *sk, struct msghdr *msg,
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struct sk_buff *skb);
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int ip6_datagram_send_ctl(struct net *net, struct sock *sk, struct msghdr *msg,
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struct flowi6 *fl6, struct ipv6_txoptions *opt,
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int *hlimit, int *tclass, int *dontfrag);
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void ip6_dgram_sock_seq_show(struct seq_file *seq, struct sock *sp,
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__u16 srcp, __u16 destp, int bucket);
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#define LOOPBACK4_IPV6 cpu_to_be32(0x7f000006)
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/* address family specific functions */
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extern const struct inet_connection_sock_af_ops ipv4_specific;
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void inet6_destroy_sock(struct sock *sk);
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#define IPV6_SEQ_DGRAM_HEADER \
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" sl " \
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"local_address " \
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"remote_address " \
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"st tx_queue rx_queue tr tm->when retrnsmt" \
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" uid timeout inode ref pointer drops\n"
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#endif
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