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14c850212e
To help in reducing the number of include dependencies, several files were touched as they were getting needed headers indirectly for stuff they use. Thanks also to Alan Menegotto for pointing out that net/dccp/proto.c had linux/dccp.h include twice. Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com> Signed-off-by: David S. Miller <davem@davemloft.net>
105 lines
2.8 KiB
C
105 lines
2.8 KiB
C
/*
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* INET An implementation of the TCP/IP protocol suite for the LINUX
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* operating system. INET is implemented using the BSD Socket
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* interface as the means of communication with the user level.
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*
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* Definitions for the UDP module.
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*
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* Version: @(#)udp.h 1.0.2 05/07/93
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*
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* Authors: Ross Biro
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* Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG>
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*
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* Fixes:
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* Alan Cox : Turned on udp checksums. I don't want to
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* chase 'memory corruption' bugs that aren't!
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version
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* 2 of the License, or (at your option) any later version.
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*/
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#ifndef _UDP_H
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#define _UDP_H
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#include <linux/list.h>
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#include <net/inet_sock.h>
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#include <net/sock.h>
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#include <net/snmp.h>
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#include <linux/seq_file.h>
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#define UDP_HTABLE_SIZE 128
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/* udp.c: This needs to be shared by v4 and v6 because the lookup
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* and hashing code needs to work with different AF's yet
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* the port space is shared.
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*/
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extern struct hlist_head udp_hash[UDP_HTABLE_SIZE];
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extern rwlock_t udp_hash_lock;
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extern int udp_port_rover;
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static inline int udp_lport_inuse(u16 num)
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{
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struct sock *sk;
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struct hlist_node *node;
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sk_for_each(sk, node, &udp_hash[num & (UDP_HTABLE_SIZE - 1)])
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if (inet_sk(sk)->num == num)
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return 1;
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return 0;
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}
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/* Note: this must match 'valbool' in sock_setsockopt */
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#define UDP_CSUM_NOXMIT 1
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/* Used by SunRPC/xprt layer. */
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#define UDP_CSUM_NORCV 2
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/* Default, as per the RFC, is to always do csums. */
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#define UDP_CSUM_DEFAULT 0
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extern struct proto udp_prot;
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struct sk_buff;
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extern void udp_err(struct sk_buff *, u32);
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extern int udp_sendmsg(struct kiocb *iocb, struct sock *sk,
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struct msghdr *msg, size_t len);
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extern int udp_rcv(struct sk_buff *skb);
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extern int udp_ioctl(struct sock *sk, int cmd, unsigned long arg);
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extern int udp_disconnect(struct sock *sk, int flags);
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extern unsigned int udp_poll(struct file *file, struct socket *sock,
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poll_table *wait);
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DECLARE_SNMP_STAT(struct udp_mib, udp_statistics);
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#define UDP_INC_STATS(field) SNMP_INC_STATS(udp_statistics, field)
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#define UDP_INC_STATS_BH(field) SNMP_INC_STATS_BH(udp_statistics, field)
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#define UDP_INC_STATS_USER(field) SNMP_INC_STATS_USER(udp_statistics, field)
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/* /proc */
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struct udp_seq_afinfo {
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struct module *owner;
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char *name;
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sa_family_t family;
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int (*seq_show) (struct seq_file *m, void *v);
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struct file_operations *seq_fops;
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};
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struct udp_iter_state {
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sa_family_t family;
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int bucket;
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struct seq_operations seq_ops;
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};
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#ifdef CONFIG_PROC_FS
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extern int udp_proc_register(struct udp_seq_afinfo *afinfo);
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extern void udp_proc_unregister(struct udp_seq_afinfo *afinfo);
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extern int udp4_proc_init(void);
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extern void udp4_proc_exit(void);
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#endif
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#endif /* _UDP_H */
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