26879da587
In the sendmsg function of UDP, raw, ICMP and l2tp sockets, we use local variables like hlimits, tclass, opt and dontfrag and pass them to corresponding functions like ip6_make_skb, ip6_append_data and xxx_push_pending_frames. This is not a good practice and makes it hard to add new parameters. This fix introduces a new struct ipcm6_cookie similar to ipcm_cookie in ipv4 and include the above mentioned variables. And we only pass the pointer to this structure to corresponding functions. This makes it easier to add new parameters in the future and makes the function cleaner. Signed-off-by: Wei Wang <weiwan@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
65 lines
1.8 KiB
C
65 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 ipcm6_cookie *ipc6,
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struct sockcm_cookie *sockc);
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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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