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jcastillo |
/*
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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, <bir7@leland.Stanford.Edu>
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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/udp.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 sock *udp_hash[UDP_HTABLE_SIZE];
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extern unsigned short udp_good_socknum(void);
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#define UDP_NO_CHECK 0
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extern struct proto udp_prot;
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extern void udp_err(int type, int code, unsigned char *header, __u32 daddr,
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__u32 saddr, struct inet_protocol *protocol, int len);
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extern void udp_send_check(struct udphdr *uh, __u32 saddr,
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__u32 daddr, int len, struct sock *sk);
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extern int udp_recvfrom(struct sock *sk, unsigned char *to,
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int len, int noblock, unsigned flags,
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struct sockaddr_in *sin, int *addr_len);
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extern int udp_read(struct sock *sk, unsigned char *buff,
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int len, int noblock, unsigned flags);
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extern int udp_connect(struct sock *sk,
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struct sockaddr_in *usin, int addr_len);
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extern int udp_rcv(struct sk_buff *skb, struct device *dev,
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struct options *opt, __u32 daddr,
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unsigned short len, __u32 saddr, int redo,
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struct inet_protocol *protocol);
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extern int udp_ioctl(struct sock *sk, int cmd, unsigned long arg);
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/* CONFIG_IP_TRANSPARENT_PROXY */
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extern int udp_chkaddr(struct sk_buff *skb);
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#endif /* _UDP_H */
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